DE102021120205A1 - Gas pressure control system, evaluation and control unit for a gas pressure control system, method for operating a gas pressure control system and computer program product - Google Patents

Abstract

The invention relates to a gas pressure control system (100) with at least one gas pressure control arrangement (300), at least one preheating arrangement (200) and at least one evaluation and control unit (700). The at least one gas pressure control arrangement (300) comprises at least one high-pressure line (310), one low-pressure line (330) and a control arrangement (320) arranged between the high-pressure line (310) and the low-pressure line (330). The preheating arrangement (200) comprises at least one heat generator (212) and at least one number of heat exchangers (230) adapted to the number of gas pressure regulating arrangements (300), the heat exchangers (230) each being assigned to one of the gas pressure regulating arrangements (300) and being connected to the corresponding high-pressure line ( 310) are coupled. According to the invention, the at least one evaluation and control unit (700) couples the high-pressure line (310) of the at least one gas pressure control arrangement (300) to at least one of the heat generators (212) via the corresponding heat exchanger (230) as a function of at least one parameter. The invention relates also an evaluation and control unit (700) for a gas pressure control system (100), a method for operating a gas pressure control system (100) and a computer program product.

Description

technical field

The invention relates to a gas pressure control system, an evaluation and control unit for such a gas pressure control system and a method for operating such a gas pressure control system and a computer program product.

State of the art

For reasons of space and economy, many combustible gases are stored under high pressure. This also applies in particular to the pipeline-bound transport of gases. The pressure level for the use and further processing of the gases is often much lower than the storage or transport pressure. For this reason, the gases are usually expanded from high pressure to a lower pressure in gas pressure regulation systems.

Corresponding gas pressure control systems are known in numerous variations and comprise at least one gas pressure control arrangement with a high-pressure line, a low-pressure line and a control arrangement arranged in terms of flow between the high-pressure line and the low-pressure line. In these gas pressure control systems, a gas stream flows from the high-pressure line into the low-pressure line, with a gas pressure of the gas stream in the high-pressure line being greater than a gas pressure of the gas stream in the low-pressure line. In addition, methods for operating such a rain system are known.

Furthermore, it is known that most gases cool down proportionally to the pressure difference as a result of the Joule-Thomson effect when the pressure is reduced. The cooling of the gas during expansion or during pressure reduction or relaxation can entail various technical problems. For example, the control arrangement or subsequent low-pressure lines can ice up. In addition, depending on the pressure and temperature, a hydrate can form in the presence of water, which can lead to blockage of low-pressure lines or elements of the control arrangement or of low-pressure lines and elements of the control arrangement. In order to avoid or reduce the undesired effects of gas cooling and to compensate for the cooling of the gas, the gas can be heated before or after expansion. For example, the heat can be conducted into the high-pressure line, into the low-pressure line and to or into elements of the control arrangement.

From the DE 10 2004 063 841 B4 discloses a generic gas pressure control system for natural gas expansion and air-conditioning refrigeration, which includes a gas expansion machine and a downstream reheater, the reheater being integrated into a brine circuit with brine pump and binary generator. A heater and a vibration sensor with a control device are provided on the gas expansion machine in such a way that the icing of the gas expansion machine can be detected by means of the vibration sensor and can be reduced via the controlled heating. The at least partially frozen brine can be removed from the brine circuit and transported to an air conditioning system, which uses the cold stored in the brine for air conditioning at its location. A heat exchanger of the reheater and/or a preheater is permanently coupled to the corresponding source.

From the U.S. 2012/0192580 A1 a gas delivery system with a valve with a temperature-dependent control is known. The valve uses a temperature gauge to measure the temperature of the natural gas after passing through an expansion valve and exiting a heat exchanger within the unloading station in a low pressure line. Here, the heat exchanger is coupled to the low-pressure line. The temperature gauge sends a signal to the valve, which is automatically actuated. If the temperature of the gas is too low, the valve is closed, which increases the residence time of the gas in the heat exchanger and increases the gas temperature. If the gas temperature is too high, the valve is opened, reducing the residence time of the gas in the heat exchanger and reducing the gas temperature. Here, the heat exchanger is permanently coupled to a heat source.

From the EP 1 865 249 B1 discloses a gas pressure reducer for reducing a gas pressure in a natural gas distribution system. The gas pressure reducer comprises at least one gas expansion device in order to allow the gas to be expanded and at the same time thereby to reduce the pressure. In addition, the gas pressure reducer includes at least one means for increasing the gas temperature in the vicinity of the gas expansion device. In this case, the means comprises a heat exchanger and a heat generator coupled to the heat exchanger.

Disclosure of Invention

The object of the invention is to create a gas pressure control system which requires less energy during operation.

A further object of the invention is to specify an evaluation and control unit for such a gas pressure control system which enables networking of the components of the gas pressure control system and thereby reduces the energy consumption of at least one component.

A further object of the invention is to specify a method for operating such a gas pressure control system, which can be implemented in an energy-saving manner.

A further object of the invention is to specify a computer program product in order to carry out a corresponding method, in particular automatically or semi-automatically.

The objects are solved by the features of the independent claims. Favorable configurations and advantages of the invention result from the further claims, the description and the drawing.

According to one aspect of the invention, the object is achieved in a gas pressure control system in that an evaluation and control unit couples a high-pressure line of at least one gas pressure control arrangement to at least one of the heat generators via the corresponding heat exchanger as a function of at least one parameter.

A gas pressure control system is understood below to mean an arrangement with at least one gas pressure control arrangement, at least one preheating arrangement and at least one evaluation and control unit.

A gas pressure control arrangement is understood below to mean an arrangement which comprises at least one high-pressure line that can be opened or closed by a valve, a low-pressure line and a control arrangement arranged between the high-pressure line and the low-pressure line. In this case, a gas pressure of the gas flow in the high-pressure line is greater than a gas pressure of the gas flow in the low-pressure line. When the gas stream flows into the low-pressure line, the pressure reduction causes relaxation cooling. The high-pressure line, the low-pressure line and the control arrangement arranged between the high-pressure line and the low-pressure line in terms of flow are arranged in one space.

The control arrangement can be understood as an assembly which adjusts the gas pressure of the gas flow. The control arrangement can include at least one valve.

The gas pressure control system can include one or more such gas pressure control arrangements. In this case, the gas pressure control arrangements can be assigned to different consumers, for example different gas networks. This allows the different gas pressure control arrangements to reduce the gas to different output pressures depending on the consumer. In addition, several gas pressure control arrangements can be arranged in a common room or in different rooms. For example, eight gas pressure control arrangements can be arranged in one room and further gas pressure control arrangements can be arranged in another room.

A preheating arrangement is understood below to mean an arrangement which comprises at least one heat generator and at least one number of heat exchangers adapted to the number of gas pressure control arrangements, with the heat exchangers each being assigned to one of the gas pressure control arrangements and coupled to the corresponding high-pressure line. The at least one evaluation and control unit couples the respective heat exchanger to release the preheating arrangement for the corresponding gas pressure control arrangement and to heat the gas present in the respective high-pressure line with the high-pressure line assigned to it and at least one of the heat generators. Due to the heating of the gas flowing in the respective high-pressure line, the expanded and cooled gas in the low-pressure line and/or in the control arrangement can also have a higher temperature. As a result, condensation of any moisture in the low-pressure line can be made more difficult or can be reduced. Due to the lower moisture content and the increased temperature in the low-pressure line or in the control arrangement, hydrate formation, for example the formation of methane hydrate in the gas flow, can be avoided or made more difficult. Due to the reduced or prevented hydrate formation, a clogging of the low-pressure line or the control arrangement and a resulting failure of the gas pressure control arrangements or a reduced functionality of the gas pressure control system can be avoided.

The at least one evaluation and control unit advantageously couples the existing heat exchangers to the at least one of the heat generators only when the at least one parameter specifies this. As a result, the gas in the corresponding high-pressure line of the corresponding gas pressure control arrangement or in the corresponding high-pressure lines of the corresponding gas pressure control arrangement is only heated if the parameter specifies this. This results in permanent heating of the gas in the high-pressure line or in the high-pressure line prevented. Here, unnecessary or less useful heating of the gas in the high-pressure line or lines can be prevented or made more difficult, whereby the at least one heat generator can apply less power to cover the heat requirement of the gas pressure control system.

Advantageously, the gas preheating in the individual gas pressure control arrangements can be regulated efficiently by setting and monitoring a parameter. As a result, energy for operating the heat generator can be reduced, as a result of which resources and costs can be reduced when operating the heat generator and when operating the gas pressure control system. This makes itself felt financially, particularly when operating a number of such gas pressure control systems or when operating gas pressure control systems with a number of, in particular, inactive gas pressure control arrangements. In addition, the resource-saving handling can create an ecological gas pressure control system that is less harmful to the environment.

A heat generator can be understood, for example, as a gas boiler which burns natural gas and uses the resulting heat to heat a heat carrier, for example a fluid, in particular water, with the heat carrier flowing at least partially through or around the heat exchanger in the coupled state and heating it. The heat exchanger can have an exchange area which can be heated directly or indirectly by the heat carrier and which is coupled to the high-pressure line. For example, the exchange area can be in contact with an outside of the high-pressure line.

The at least one heat generator can be coupled to the at least one heat exchanger, for example, by a valve which, when open, at least partially releases a fluid connection between the corresponding heat exchanger and the at least one heat generator and, when closed, the fluid connection between the heat exchanger and the at least one heat generator completely closed. Since the heat transfer medium only reaches the heat exchanger when the heat exchanger is coupled to the at least one heat generator, with the valve being at least partially open, the heat transfer medium is only then cooled in the heat exchanger and reheated by the heat generator or replaced by a heated heat transfer medium. Since less heat transfer medium is cooled and heated by decoupling the heat exchanger from the heat generator, less gas can be burned in the gas boiler to generate the heat, thereby reducing carbon dioxide emissions when the gas pressure control system is operated by the gas-burning heat generator. Other heat generators and other methods for generating heat are also conceivable, in which case energy for heating the heat transfer medium can also be reduced here.

According to a favorable embodiment of the invention, the parameters can include at least one of at least two parameters.

A first parameter can be a state of the valve of the respective gas pressure control arrangement. A sensor unit can monitor the state of the at least one valve and the at least one evaluation and control unit can couple the corresponding high-pressure line to at least one of the heat generators via the corresponding heat exchanger when the high-pressure line is released. In addition, the at least one evaluation and control unit can decouple the high-pressure line from the at least one heat generator when the high-pressure line is in a state that closes the respective valve.

The valve can be a safety shut-off valve. The condition of the valve can be checked for each existing gas pressure control arrangement and the gas in the high-pressure line or the high-pressure line can only be heated if it is released by the valve and the pressure of the gas is reduced, which is what causes the relaxation cold. This advantageously prevents so-called reserve control arrangements from heating so-called reserve rails which are not in operation and are therefore not cooled by the Joules-Thomson effect. This saves resources and costs. In this case, heat is only given off to the corresponding heat exchanger and generated in the at least one heat generator when a need is suggested by the state of the valve. As a result, energy for operating the heat generators and corresponding fluid pumps and thereby carbon dioxide and costs when operating the heat generators can be reduced.

A second parameter can be a gas quantity flowing through the corresponding high-pressure line, a first gas quantity threshold value being stored in a storage unit for each high-pressure line and a gas measuring arrangement determining the gas quantity flowing through the high-pressure line.

The at least one evaluation and control unit can, when the first gas quantity threshold value is exceeded, the corresponding high couple the pressure line to at least one of the heat generators via the corresponding heat exchanger. Since the cooling of the gas when expanding or reducing the pressure depends on the amount of gas passed through and the level of the pressure reduction between the high-pressure line and the corresponding low-pressure line, a suitable first gas volume threshold value for each gas pressure control arrangement can advantageously be easily defined. For example, a first gas quantity threshold value can be defined, from which on the basis of the gas quantity passed through the corresponding high-pressure line, cooling takes place in the low-pressure line, at which hydrate formation inside the low-pressure line or the control arrangement and/or the formation of condensation water on an outside of the low-pressure line and/or or is suggested by the regulation.

Since the amount of gas that flows through the corresponding gas pressure regulating arrangement is usually measured to determine consumption, no additional measuring arrangements are required for determining the amount of gas.

The first gas quantity threshold value can be entered manually, for example, or can be calculated using a corresponding method. This first gas quantity threshold value or several situation-dependent gas quantity threshold values can be stored in a storage unit, for example in the form of a table. Either for each gas pressure control arrangement individually or one value for all gas pressure control arrangements together. Advantageously, by defining the first gas quantity threshold value, heating of the gas in the high-pressure line or heating of the high-pressure line can only take place by coupling the corresponding heat exchanger to the at least one heat generator if cooling occurs due to the quantity of gas passed through the corresponding high-pressure line takes place in the low-pressure line, in which case a hydrate formation inside the low-pressure line or the control arrangement and/or the formation of condensed water on an outside of the low-pressure line and/or the control arrangement is suggested. This can prevent gas pressure control arrangements from being heated, whose low-pressure lines and/or control arrangements are only slightly cooled during operation due to small amounts of gas. As a result, further resources and costs can be saved. Heat is only given off to the gas in the high-pressure lines and generated accordingly when there is a need. Here, in an advantageous manner, only high-pressure lines of gas pressure control arrangements that are also in operation and produce predetermined quantities of cold are heated.

The gas quantity threshold value can be zero, for example; this can be the case when the valve of the high-pressure line is closed. As a result, by determining the state of the valve, it can be determined whether the gas quantity threshold value is exceeded.

Furthermore, a further gas quantity threshold value can be stored, with the at least one evaluation and control unit decoupling the corresponding heat exchanger from the heat generator when the gas quantity falls below the further threshold value. In this case, the first gas quantity threshold value can be greater than the further gas quantity threshold value. Alternatively, the first and the further gas quantity threshold value can be the same.

According to a favorable embodiment of the invention, at least two gas pressure control arrangements can be assigned to a common gas network, with a first gas pressure control arrangement being selected as the operating control arrangement, which can have a corresponding valve in the releasing state. A second gas pressure control arrangement can be selected as a reserve control arrangement for the first gas pressure control arrangement, wherein the second gas pressure control arrangement can have a corresponding valve in the state closing the corresponding high-pressure line.

The at least one evaluation and control unit and/or an arrangement of the safety shut-off valve and/or a user, for example in a control center or on site, can switch the valve, which can be designed as a safety shut-off valve, of the at least one first gas pressure control arrangement into the closed state when a predetermined situation occurs transfer and transfer the valve of the second gas pressure control arrangement in the open state. A predetermined situation can be maintenance of the operating control arrangement or a detection of a deficiency or a defect in the operating control arrangement. In this case, the valve of the operating control arrangement can be closed manually or on the basis of monitoring signals.

Advantageously, the possibility can be offered for each gas pressure control arrangement to use it as an operating control arrangement or reserve control arrangement. In addition, a simple free assignment can be made possible. Furthermore, an automated switchover of the state of the gas pressure control arrangements can be made possible. Advantageously, gas pressure control arrangements of a gas pressure control location can be used flexibly as required and released for operation.

A third parameter, depending on which the at least one evaluation and control unit couples the corresponding heat exchanger to at least one of the heat generators, can be the assignment of the corresponding gas pressure control arrangement; in this case, only gas pressure control arrangements selected as operating control arrangements can be coupled to the at least one heat generator, or as Backup control assemblies select gas pressure control assemblies when the corresponding operational control assembly has a closed valve. In addition, the other parameters can also be monitored by the at least one evaluation and control unit.

According to an advantageous embodiment of the invention, a gas temperature threshold value or a gas temperature threshold value range for at least one gas pressure control arrangement can be stored in the memory unit and a temperature sensor can determine a gas temperature of the corresponding gas pressure control arrangement, the at least one evaluation and control unit comparing the determined gas temperature with the stored gas temperature threshold value or the stored gas temperature threshold value Gas temperature threshold range compares. If the determined gas temperature deviates from the gas temperature threshold value or the gas temperature threshold value range, the evaluation and control unit can adapt the heat supply of the preheating arrangement to the heat exchanger.

The gas temperature threshold or the gas temperature threshold range can be entered manually or calculated by at least one evaluation and control unit. For example, the gas temperature threshold value or the gas temperature threshold value range for the high-pressure line can be determined from a target gas temperature of the low-pressure line. Additionally or alternatively, the gas temperature threshold value or the gas temperature threshold value range for the low-pressure line can be determined from a target gas temperature of the high-pressure line. Here, the gas temperature threshold value or the gas temperature threshold value range can be provided for the gas temperature of the high pressure side or the gas temperature of the low pressure side.

The gas temperature in the high-pressure line or in the low-pressure line can be measured directly; alternatively, the gas temperature in one gas line can also be calculated from the gas temperature in the other gas line and the pressure reduction of the gas.

The temperature sensor can, for example, measure the temperature within the corresponding line or the temperature on an outer wall of the line. The at least one evaluation and control unit can compare the measured temperature with the gas temperature threshold value or the gas temperature threshold value range.

Advantageously, when the heat supply of the preheating arrangement is adjusted, a flow temperature of the heat transfer medium on a flow side of the heat exchanger of the corresponding gas pressure control arrangement can be varied. In this case, constant flow temperatures of the heat transfer medium, which are the same for all heat exchangers, can advantageously be dispensed with. Instead of the constant flow temperatures, these are set as a function of the determined gas temperature and the gas temperature threshold value or gas temperature threshold value range specified for the gas pressure control arrangement. Here, the heat carrier can be a fluid. The hot or heated fluid of the at least one heat generator can be mixed on the flow side of the heat exchanger with cooled fluid from the return side of this heat exchanger. In this case, the at least one evaluation and control unit can control, for example, a three-way valve via corresponding control signals, which enables a mixture of cooled and heated heat transfer medium. Here, the temperature of the heat transfer medium on the flow side can be increased by adding heated heat transfer medium and reduced by adding cooled heat transfer medium. As a result, efficient regulation of the temperature of the flow sides of the heat exchanger and a more efficient preheating arrangement are possible in an advantageous manner.

Advantageously, the temperature to which the gas in the high-pressure line is heated or cooled can easily be influenced. In addition, a heating output of the corresponding at least one heat generator can be reduced, since a small amount of heat transfer medium is heated when mixing with cooled heat transfer medium takes place. Since the gas in the high-pressure line is not heated up or warmed up any further than specified, further heating energy can be saved. Seasonal fluctuations in the gas temperature or the room temperature can advantageously be taken into account and a corresponding reaction can be made.

The gas temperature threshold value or the gas temperature threshold value range can depend on various parameters, for example humidity and/or a temperature in the interior in which the corresponding gas pressure control arrangement is arranged and/or a Dew point and / or the formation of hydrates and / or operational requirements are adjusted to make it difficult, for example, sweating and / or icing and / or clogging of components of the at least one gas pressure control assembly. Here, too, the heat output of the at least one heat generator can be adapted to the actually determined need, as a result of which further resource consumption and costs can be reduced.

According to a favorable embodiment of the invention, a sensor arrangement can determine a dew point temperature in the interior, in which at least one gas pressure control arrangement is arranged. The determined dew point temperature can be stored in the storage unit as a gas temperature threshold value for the corresponding at least one gas pressure control arrangement. The sensor arrangement for determining the dew point temperature can have a temperature sensor and a humidity sensor and its own evaluation and control unit. The evaluation and control unit can determine the dew point temperature from the humidity data and the temperature data and output it to the evaluation and control unit, which generates control signals for the preheating arrangement.

Alternatively, another suitable evaluation and control unit can determine the dew point temperature from the humidity data and the temperature data. For example, the evaluation and control unit controlling the preheating arrangement can determine the dew point temperature.

The dew point temperature indicates the temperature below which the humidity in the ambient air condenses out. This temperature can be fallen below in particular in the area of the at least one cooled low-pressure line or in the area of the at least one cooled control arrangement if these are not sufficiently heated or if the gas in the high-pressure line is not sufficiently heated.

Since the gas temperature in the low-pressure line can be measured and compared to the stored gas temperature threshold value, which corresponds to the dew point temperature, heating the gas in the low-pressure line to the dew point temperature or higher can prevent or make it more difficult for humidity to condense on the low-pressure line or in the area of the low-pressure line . Here, the preheating device can preheat the gas flow in the high-pressure line to a sufficiently high temperature, so that after the pressure reduction has taken place and the resulting cooling, a gas temperature that is sufficiently high to avoid undesirable effects is ensured. This gas temperature is above the dew point temperature. Advantageously, the formation of puddles and/or rust and/or ice and/or the penetration of moisture into measuring devices or other arrangements can be prevented or made more difficult if the gas temperature of the low-pressure line is above the dew point temperature. As a result, the service life of the gas pressure regulation system can be extended and the occurrence of defects and costly repairs can be delayed.

Since the gas temperature threshold value corresponds to the dew point temperature, the gas temperature threshold value can be adapted to current conditions and the heat output of the at least one heat generator can also be adapted to current conditions. For example, the humidity in the ambient air is higher in summer and the dew point temperature is therefore higher in summer than in winter. In this case, the dew point temperature can be determined at predetermined intervals and the gas temperature threshold value can be updated at these intervals.

Advantageously, the actual heat requirement can be determined more precisely by determining the dew point temperature. As a result, costs and resource consumption can be further reduced.

In a further advantageous embodiment, a minimum gas temperature threshold value can be stored in the memory unit, with the at least one evaluation and control unit being able to select the minimum gas temperature threshold value as the gas temperature threshold value for the corresponding gas pressure control arrangement if the minimum gas temperature threshold value is greater than the corresponding dew point temperature determined. Alternatively, the at least one evaluation and control unit can select the determined dew point temperature as the gas temperature threshold value for the corresponding gas pressure control arrangement if the determined dew point temperature is greater than the corresponding gas temperature threshold value. In this case, the minimum gas temperature threshold value can be a temperature which is necessary for error-free operation of the assemblies, in order to ensure functionality and/or in order to meet safety-related specifications. Alternatively, the minimum gas temperature threshold may be a temperature below which the hydrate precipitates out of the gas in the low pressure line. Setting a minimum gas temperature threshold can be useful on cold days in winter when the dew point is below these temperatures due to the low humidity. This can cause freezing or malfunctions or failure of hydrate in the low-pressure line due to insufficient gas temperature be prevented or made more difficult. A minimum gas temperature threshold value can be stored for a number of gas pressure control arrangements. Alternatively, a separate minimum gas temperature threshold value can be stored for each gas pressure control arrangement.

In addition, the specification of a maximum gas temperature threshold is conceivable, with the maximum gas temperature threshold being stored as the gas temperature threshold for the corresponding gas pressure control arrangement if the maximum gas temperature threshold is less than the determined corresponding dew point temperature. The determined dew point temperature can be stored as a gas temperature threshold value for the corresponding gas pressure control arrangement if the determined dew point temperature is lower than the maximum gas temperature threshold value.

By specifying the maximum gas temperature threshold value, it is possible to prevent the high-pressure line or the gas in the high-pressure line from being heated to a greater extent than is necessary. A benefit can be weighed up here and the maximum gas temperature threshold value can be selected accordingly.

According to an advantageous embodiment of the invention, a gas pressure threshold value or a gas pressure threshold value range for the gas of at least one gas pressure control arrangement can be stored in the storage unit.

Additionally or alternatively, a pressure threshold value or a pressure threshold value range for a heat transfer medium of at least one circuit of the preheating arrangement can be stored in the storage unit.

A pressure sensor arrangement can determine the pressure of the corresponding gas and/or the corresponding heat transfer medium. In particular, at least one of the evaluation and control units can compare the determined pressure value with the corresponding gas pressure threshold value or gas pressure threshold value range and/or the corresponding pressure threshold value or pressure threshold value range and, if the determined pressure deviates from the corresponding gas pressure threshold value or gas pressure threshold value range and/or the corresponding pressure threshold value or pressure threshold value range generate error message. Furthermore, the at least one evaluation and control unit can deactivate the corresponding preheating arrangement and/or the corresponding gas pressure control arrangement and/or the gas pressure control system. When the gas pressure control arrangement is deactivated, the corresponding reserve control arrangement can be activated. By monitoring the pressure of the gas and/or the pressure of the heat carrier, damage or malfunctions can be detected or the occurrence of damage or malfunctions can be prevented or made more difficult.

According to a favorable embodiment of the invention, the at least one evaluation and control unit can be designed to activate a dehumidification arrangement or to couple the dehumidification arrangement to the at least one gas pressure control arrangement.

Here, the dehumidifying arrangement can be designed as a currentless room dehumidifier and can include a container filled with granules. The granules can consist of calcium chloride or another substance that has the ability to extract moisture from the room air. In this way, water can be removed from the room air, for example. A collecting container can collect the corresponding condensed water. This reduces the humidity in the room air and thus the dew point temperature. If the dew point temperature is low, a gas temperature in the low-pressure line and in the high-pressure line can be reduced to this and a heat output of the at least one heat generator can be reduced.

Alternatively or additionally, the gas pressure control system can include a ventilation device for supplying a ventilation fluid. These ventilation devices are usually required to prevent a hazardous explosive or ignitable atmosphere. When the gas pressure control arrangement is coupled to the dehumidifying arrangement, the ventilation device and the low-pressure line of the corresponding gas pressure control arrangement can be coupled to one another. Advantageously, the expansion cold transmitted from a heat exchange arrangement to the ventilation device cools the ventilation fluid flow. As a result, the ventilation fluid can already be cooled down in the ventilation device essentially to a temperature which prevails approximately in the area of the low-pressure line and in the area of the control arrangement. Here, the relaxation cold of the low-pressure line can bring about a reduction in the moisture content of the ventilation fluid in the area of the ventilation device. A portion of the moisture in the aeration fluid flow condenses out of the aeration fluid in the aeration device. As a result, the aeration fluid flow has a reduced moisture content after the aeration fluid flow has flowed out of the aeration device. As a result, at least the moisture content in the atmosphere within the gas pressure control system can be reduced and the dew point temperature in the interior can be lowered. If the dew point temperature is low, a gas temperature in the low-pressure line and in the high-pressure line can be reduced to this. As a result, a heating output of the at least one heat generator can be reduced.

By coupling the gas pressure control arrangement to the dehumidification arrangement and by an activated dehumidification arrangement, it can advantageously be specifically determined at which point any condensation water occurs. This reduces the risk of this accumulating at an undesirable location and undesirably leading to rust damage or, at low temperatures, to the formation of ice on at least one of the gas pressure control arrangements.

According to a favorable embodiment of the invention, a second gas quantity threshold value for at least one of the gas pressure control arrangements can be stored in the storage unit. The evaluation and control unit can activate the dehumidification arrangement if the gas quantity determined for at least one of the gas pressure regulation arrangements is greater than the corresponding second gas quantity threshold value, or the evaluation and control unit can activate the at least one gas pressure regulation arrangement in which the determined gas quantity is greater than the corresponding second gas quantity threshold value is to couple with the dehumidification arrangement.

Advantageously, the at least one evaluation and control unit can only couple the low-pressure line to the at least one ventilation device via the corresponding heat exchange arrangement if at least one specified quantity of gas flows through it. Alternatively or additionally, the evaluation and control unit can activate the dehumidification arrangement when at least one gas pressure control arrangement has a predetermined gas flow flowing through it. This can prevent the dehumidifying arrangement from being coupled to a gas pressure control arrangement whose low-pressure lines and/or control arrangements are only slightly cooled during operation due to small amounts of gas. In addition, the dehumidification arrangement can advantageously be prevented from being activated if the low-pressure line or lines are only slightly cooled and dehumidification of the room air is not required to prevent liquid from condensing out of the room air in the area of the low-pressure line.

Furthermore, a further gas quantity threshold value for at least one of the gas pressure control arrangements can be stored in the storage unit. The evaluation and control unit can deactivate the dehumidification arrangement if the gas quantities determined for the gas pressure regulation arrangements are smaller than the corresponding further gas quantity threshold values, or the evaluation and control unit can deactivate the at least one gas pressure regulation arrangement in which the determined gas quantity is smaller than the corresponding further gas quantity threshold value. decouple from the dehumidification arrangement. In this case, the further gas quantity threshold value can be smaller than the second gas quantity threshold value. Alternatively, the further gas quantity threshold and the second gas quantity threshold can be the same.

As a result, further resources and costs can be saved. For example, the consumption of a granulate can be reduced. Alternatively, a resource consumption of a heat exchange arrangement can be reduced, for example, by operating pumps.

According to a favorable embodiment of the invention, the evaluation and control unit can determine the gas temperature of the low-pressure line from at least one gas pressure control arrangement, the evaluation and control unit coupling the low-pressure line with the lowest gas temperature to the dehumidification arrangement. Advantageously, the most cooled low-pressure line can be coupled to the ventilation arrangement. Here, a relaxation cold of the low-pressure line can bring about a reduction in the moisture content of the ventilation fluid in the area of the ventilation device. A portion of the moisture in the aeration fluid flow condenses out of the aeration fluid in the aeration device. As a result, the aeration fluid flow has a reduced moisture content after the aeration fluid flow has flowed out of the aeration device. Due to the reduced moisture content of the ventilation fluid flow, condensation on the outside of the control arrangement and/or on the outside of the low-pressure line and corrosion and other damage to the respective outside resulting from moisture and moisture can be avoided or at least made more difficult.

In addition, freezing of moving elements of the control arrangement can be made more difficult or avoided due to the reduced moisture content. As a result, damage that impairs function can be avoided and a functional period of the low-pressure line and/or a functional period of the control arrangement can be extended.

Since the other low-pressure lines are warmer than the at least one low-pressure line coupled to the ventilation arrangement, the Temperatures of the other low-pressure lines are automatically above the dew point temperature of the ventilation fluid. This can effectively prevent or at least make it more difficult for air moisture to condense out in the area of the existing low-pressure lines.

According to an advantageous embodiment of the invention, a setpoint temperature and/or a setpoint temperature range for a component of the gas pressure control system can be stored in the storage unit. A temperature sensor can determine the temperature of this component or in the area of this component, with the at least one evaluation and control unit comparing the determined temperature with the target temperature and/or the target temperature range and, if the determined temperature deviates from the target temperature and/or the target temperature range, a Heat output adjusts at least one heating element in the area of this component. Here, the at least one heating element can be coupled to the at least one heat generator of the preheating arrangement. Alternatively or additionally, the heating element can be designed as an electrothermal heating element or have an electrothermal heating element.

For example, the temperature in an odor chamber can be monitored in order to prevent or make it more difficult for the odorant to freeze. An odorant can be added to the gas in order to detect a leak or a leaking valve of the at least one gas pressure control arrangement also olfactorily. In this case, the gas emerging from the at least one gas pressure control arrangement has a predetermined odour.

Alternatively, the temperature in the area of connecting lines between the at least one heat generator and the heat exchanger can be checked in order to prevent or make it more difficult for these connecting lines to freeze. Furthermore, the temperature of connecting lines or in the area of the connecting lines between the dehumidification arrangement and the low-pressure line can be checked in order to prevent or make it more difficult for the refrigerant to freeze. Furthermore, the temperature of a condensate of the at least one heat generator or a temperature in the area of the condensate of the at least one heat generator can be checked in order to prevent the condensate from freezing. In addition, by preventing or making freezing more difficult, damage to lines and header assemblies can be prevented or made more difficult.

In particular, the temperature in the interior in which at least one of the gas pressure control arrangements is arranged can be advantageously determined, since some sensitive elements, assemblies, measuring devices, collecting arrangements and connecting lines are at least partially arranged in this interior. By maintaining a specified target temperature and/or a target temperature range in this interior, damage or defects in these elements, assemblies, connecting lines and collecting arrangements can be prevented or made more difficult. In addition, the interior can only be heated when the interior temperature falls below the target temperature and/or the target temperature range. In this case, permanent heating of the interior is prevented or made more difficult, as a result of which resource consumption and costs can be further reduced.

According to a favorable embodiment of the invention, a first power limit value for the heat generators can be stored in the storage unit in a gas pressure control system with several heat generators. The evaluation and control unit can determine a total heat requirement of the gas pressure control system, which is made up of at least the heat requirement of the gas pressure control arrangements.

In addition, the heat demand of the at least one heating element can contribute to the overall heat demand.

The evaluation and control unit is designed to switch on the heat generator and operate it up to the corresponding first power limit until the total heat requirement is covered or the heat generators are operated up to the first power limit. In this case, the heat generators can be connected in series, with one temperature sensor determining the flow temperature of the heat transfer medium and another temperature sensor determining the return flow temperature of the heat transfer medium. At least one evaluation and control unit can determine the difference between the flow temperature and the return temperature.

The flow temperature can be understood to mean the temperature to which the heat transfer medium is heated when it leaves the at least one heat generator. For example, the flow temperature can be measured in a manifold connecting the outlets of the heat generators. If the heat generators are operated up to the first output limit value, the flow temperature can be 60°, for example.

Under the return temperature, the temperature can be understood, which has the cooled heat transfer medium when it is at least a heat exchanger flows to at least one heat generator. Here, the return temperature can also be measured in a collecting line. This manifold can connect the inlets of the heat exchangers to each other.

If the determined difference between flow temperature and return temperature is above a specified temperature, the heat output of at least one of the heat generators can be increased or another heat generator can be switched on. The first at least one power limit value can be used to specify that the activated heat generators are only loaded up to this value, which can make it more difficult for the heat generators to wear out prematurely due to overloading. In this case, the first power limit value can be below a maximum power value. By switching on additional heat generators or by deactivating heat generators, it is possible to react quickly to the currently required heat demand.

According to a favorable embodiment of the invention, a second power limit value for the heat generator can be stored in the storage unit. If the total heat requirement is not covered and the heat generator is operated up to the corresponding first power limit, the evaluation and control unit can operate the heat generators one after the other up to the second power limit until the total heat requirement is covered or the heat generators are operated up to the second power limit. Advantageously, the heat generators are all initially activated and operated up to the first power threshold value before the heat generators are operated up to the second threshold value. As a result, the existing heat generators can be loaded more evenly, since initially all heat generators are operated instead of some, which are operated at maximum output and others are not even activated. As a result, the wear on the heat generator can be more even. Additional performance threshold values can be stored in order to generate an even load.

According to a favorable embodiment of the invention, at least one of the evaluation and control units can be designed to determine the total running time of each heat generator and a sequence for activating the heat generators or a sequence for the heat generators to increase the power beyond the first power limit value depending on the running time to create. The at least one of the evaluation and control units can be designed in particular to activate the heat generator with the shortest total running time first or to increase its power first beyond the first power limit value and to activate the heat generator with the longest total running time last or to activate its power last to increase beyond the first power limit.

Advantageously, the heat generators can be utilized evenly depending on the running time. This can prevent the first heat generator from showing signs of wear while other heat generators are almost unused. The order in which the heat generators are activated or increased above the first threshold value is determined again and again. The running times of the heat generators can be determined and evaluated continuously or once a day or once a week or at another suitable interval.

According to a favorable embodiment of the invention, an antifreeze temperature can be stored in the storage unit. A temperature sensor can determine the temperature in the area of the heat generator and at least one of the evaluation and control units can be designed to compare the frost protection temperature with the determined temperature and, if the frost protection temperature is not reached, the heat generators that do not contribute to covering the overall heat requirement in one to activate predetermined first time interval for a second time interval. This can prevent the inactive heat generators from freezing and being damaged. By activating the heat generators, a pump can be activated in the heat generators, which pumps a heated heat carrier through the heat generator and thus heats the heat generator. As a result, only the heat generators that are needed to cover the heat requirement are permanently active, the inactive heat generators are nevertheless protected against forest damage in an advantageous manner in a resource-saving and cost-saving manner.

According to an advantageous embodiment of the invention, the at least one heat generator can be coupled to a condensate treatment arrangement. In this case, at least one processing element can be designed to process the condensate of the at least one heat generator and to release the processed condensate to an environment. The treated condensate can be of drinking water quality. This is particularly advantageous when the gas pressure control system has no access to a waste water connection and therefore no access to waste water treatment. Condensate treatment can prevent contaminated elements that are harmful to the environment from entering the waterways or groundwater. In an alternative Configuration, the condensate can be collected in a collection arrangement. The collected condensate can be transported to a treatment arrangement outside the gas pressure regulation system. In a further alternative embodiment, the condensate can be routed via a waste water connection into a sewage system and thereby to a sewage treatment plant or another suitable waste water treatment.

According to a favorable embodiment of the invention, a testing arrangement for checking the processed condensate, a collecting arrangement for collecting the condensate and a processing element for processing the condensate can be provided. Since the condensate usually has a high salt content, the test arrangement can be designed in particular to determine the conductivity of the processed condensate. A conductivity limit value or a conductivity limit value range can be stored in the memory unit. The at least one evaluation and control unit compares the determined conductivity value with the stored conductivity limit value or the stored conductivity limit value range, with a collection arrangement collecting the condensate or at least one further processing element processing the condensate if the conductivity limit value or a conductivity limit value range is exceeded. If the conductivity falls below the limit value or the conductivity limit value range, the outlet releases the treated condensate to the environment.

According to a favorable embodiment of the invention, a filling quantity threshold value can be stored in the memory unit for existing collecting elements of the condensate collecting arrangement. A filling quantity measuring arrangement can determine the filling quantities of the collection elements present and compares the filling quantities determined with the corresponding filling quantity threshold values. When the filling quantity threshold value is reached, another collection element can collect the condensate. If the existing collecting elements are filled up to the corresponding filling quantity threshold value, the evaluation and control unit can output an error message and/or deactivate the preheating arrangement and/or at least one of the gas pressure control arrangements and/or the gas pressure control system. Several filling quantity threshold values can also be stored here, whereby if the first filling quantity threshold value is exceeded, only the error message is output and if at least a second filling quantity threshold value is exceeded, the preheating arrangement and/or at least one of the gas pressure control arrangements and/or the gas pressure control system is deactivated.

The error message can be output in particular before the maximum filling quantity value of the collecting elements is reached. This allows the collection elements to be emptied or replaced in good time. Deactivating the preheating arrangement can make it more difficult or prevent the generation of further condensate. By deactivating at least one gas pressure control arrangement, the heat requirement and thus the output of the preheating arrangement can be reduced and the quantities of condensate produced as a result can be reduced. The generation of condensate can be prevented by deactivating the gas pressure regulation system. These measures can advantageously prevent or make it more difficult for contaminated condensate to get into the environment. In addition, legal requirements for condensate disposal can be reliably met.

The gas pressure control system can have a connection to a control center. The connection may be an Internet connection, a suitable remote connection, or a Bluetooth connection, or any other suitable connection. Through the connection, a user outside of the gas pressure regulation system can access the determined data and error messages. Alternatively, threshold values or threshold value ranges can be stored or adjusted via the connection. In addition, arrangements or components of the gas pressure control system can be controlled via this connection. In addition, the gas pressure control system can be monitored outside of the gas pressure control system, as a result of which the safety and reliability of the gas pressure control system are improved and malfunctions can be detected in good time even in gas pressure control systems that are located in a remote location. For example, central access to measurement results or error messages can be enabled. Furthermore, video surveillance can be available so that, in addition to the functionality, unauthorized entry of a person or an animal into the gas pressure control system can also be detected.

The gas pressure control system can have one or more evaluation and control units. In this case, a central evaluation and control unit can control the gas pressure regulation system centrally. For example, the central evaluation and control unit can be combined in a switch cabinet or arranged in a switch cabinet. Here, the central evaluation and control unit can receive, collect and optionally evaluate data and/or information and/or signals.

In addition, a process for operating in the central evaluation and control unit ben a gas pressure control system, for example in the form of a computer program product. In this case, data received from the central evaluation and control unit can already be evaluated completely or in part by other evaluation and control units. The central evaluation and control unit can output control signals to further evaluation and control units and/or to components and/or assemblies and/or arrangements and/or elements in order to carry out the method.

According to a further aspect of the invention, the object is achieved in an evaluation and control unit for a gas pressure control system in that the evaluation and control unit comprises a plurality of interfaces, with at least two of the interfaces being assigned to a gas pressure control arrangement. At least one first interface is designed to receive at least one sensor signal from a sensor unit of this gas pressure control arrangement and to forward it to at least one computing unit for evaluation. The at least one computing unit can be designed to assign the received sensor signals to the respective gas pressure control arrangement and to compare the sensor signals with at least one corresponding threshold value and to generate at least one corresponding control signal assigned to the gas pressure control arrangement as a function of the comparison. At least one second interface can be designed to send the at least one control signal, which is assigned to this gas pressure control arrangement, to a coupling arrangement of a preheating arrangement, which is assigned to this gas pressure control arrangement. Depending on the at least one control signal, the coupling arrangement can couple the corresponding high-pressure line to at least one heat generator of the preheating arrangement or decouple the corresponding high-pressure line and the at least one heat generator from one another.

The evaluation and control unit can form a central evaluation and control unit of the gas pressure control system. The central evaluation and control unit can coordinate various processes in the gas pressure regulation system. For this purpose, a sequence of a method for operating a gas pressure control system can be stored in the central evaluation and control unit, for example in the form of a computer program product.

In this case, data and/or sensor signals and/or other signals received by the central evaluation and control unit can already have been evaluated completely or in part by other evaluation and control units. The central evaluation and control unit can output control signals to further evaluation and control units and/or to components and/or assemblies and/or arrangements and/or elements in order to carry out the method.

A predetermined parameter can advantageously be monitored by the evaluation and control unit via the sensor data of the sensor unit. The evaluation and control unit advantageously couples the existing high-pressure lines to the at least one of the heat generators only when the at least one parameter specifies this. As a result, the gas in the corresponding high-pressure line of the corresponding gas pressure control arrangement or in the corresponding high-pressure lines of the corresponding gas pressure control arrangement is only heated if the parameter specifies this. This prevents permanent heating of the gas in the high-pressure line or in the high-pressure lines. Here, unnecessary or less useful heating of the gas in the high-pressure line or lines can be prevented or made more difficult, as a result of which the at least one heat generator can apply less power to cover the heat requirement of the gas pressure control system.

The gas preheating in the individual gas pressure control arrangements can advantageously be efficiently regulated by the determination and monitoring of the parameter by the evaluation and control unit. As a result, energy consumption for operating the heat generator can be reduced, as a result of which resource consumption and costs when operating the heat generator and when operating the gas pressure control system can be reduced. This makes itself felt financially, particularly when operating a number of such gas pressure control systems or when operating gas pressure control systems with a number of, in particular, inactive gas pressure control arrangements. In addition, the resource-saving handling can create an ecological gas pressure control system that is less harmful to the environment. In addition, the at least one first interface assigned to the gas pressure control arrangement can be designed to receive sensor signals from a gas measuring arrangement and/or sensor signals from a sensor unit monitoring the state of a valve of the corresponding high-pressure line.

A gas measuring arrangement can determine, among other things, the consumption of the consumer coupled to the gas pressure regulating arrangement. In addition, an effective relaxation cold can be estimated via the gas flow.

In this case, the computing unit can generate control signals for the coupling arrangement assigned to the gas pressure regulating arrangement, the coupling arrangement coupling the corresponding high-pressure line to the at least one heat generator when a gas quantity threshold value is exceeded. In addition, the arithmetic unit can generate control signals for the coupling arrangement assigned to the gas pressure regulating arrangement, with the coupling arrangement decoupling the corresponding high-pressure line from the at least one heat generator when the gas quantity falls below a threshold value.

By monitoring the state of the valve, the computing unit can easily determine whether the gas pressure control arrangement is activated or deactivated, it being possible to dispense with heating a high-pressure line of a deactivated gas pressure control arrangement. In this case, the computing unit can generate control signals for the coupling arrangement assigned to the gas pressure regulating arrangement, the coupling arrangement coupling the corresponding high-pressure line to the at least one heat generator when the valve is in the open state. Furthermore, the computing unit can generate control signals for the coupling arrangement assigned to the gas pressure regulating arrangement, the coupling arrangement decoupling the corresponding high-pressure line from the at least one heat generator when the valve is in the closed state.

According to a favorable embodiment of the invention, at least one memory unit can be designed to store threshold values and/or threshold value ranges for sensor signals representing parameters and to make them available to the at least one computing unit. In this case, a memory unit can be provided for all threshold values and/or threshold value ranges for sensor signals representing parameters. Alternatively, a plurality of memory units can be provided, with the individual memory units storing one or more threshold values and/or threshold value ranges for sensor signals representing parameters and making them available to the at least one computing unit.

According to a favorable embodiment of the invention, an input unit can be designed to enable threshold values to be input and stored. The evaluation and control unit can have at least one interface, which receives the data from the input unit and forwards it to the at least one computing unit for further processing and/or to the storage unit for storage. The storage unit and the input unit can be used to flexibly store values for sensor signals representing parameters and adapt them to the gas pressure control system to be controlled. Here, in particular, activation or deactivation of components and/or elements and/or assemblies can be flexibly adapted to the respective gas pressure control system and its environment.

In addition, the evaluation and control unit can be easily adapted to several gas pressure control systems by defining sensor signals representing parameters, with a user finding the same operation on each gas pressure control system with such an evaluation and control unit. In addition, the parameterization can be simplified and adapted to different gas pressure control systems and universally applied to different gas pressure control systems. In addition, corresponding control cabinets and/or circuit diagrams and/or control components and/or software can be the same for all gas pressure control systems. As a result, a period of time and costs for training users, in particular maintenance personnel for the gas pressure control systems, can be reduced. In the case of at least two gas pressure control arrangements assigned to a common gas network, the input unit can be used to identify a first gas pressure control arrangement as an operating control arrangement and a second gas pressure control arrangement as a reserve control arrangement.

As a result, operating rule arrangements and reserve rule arrangements can be easily defined and activated and deactivated as required. In this case, the computing unit can only generate control signals for the coupling arrangement assigned to the gas pressure control arrangement if this is an activated operating control arrangement or an activated reserve control arrangement. As a result, resources for operating the at least one heat generator can be saved.

According to a favorable embodiment of the invention, at least one further interface can be provided to receive sensor signals representing parameters from at least one sensor unit monitoring the corresponding parameter and forward them to the computing unit. In this case, a corresponding threshold value or threshold value range can be stored in at least one of the memory units, which the at least one memory unit makes available to the computing unit. In particular, the computing unit can be designed to evaluate the received sensor signals and to compare them with the corresponding stored threshold value or threshold value range. The arithmetic unit can be designed further if there is a discrepancy in the evaluated Sensor signals of the corresponding sensor unit to generate at least one control signal from the corresponding threshold value or the corresponding threshold value range. At least one further interface can be designed to output the generated control signals to an arrangement that regulates the corresponding parameter and/or to an arrangement whose state is dependent on the parameter. This allows the processing unit to react flexibly to different situations and scenarios. The sensor signals can also be evaluated by other computing units.

According to a favorable embodiment of the invention, the control signals can be designed to adapt the corresponding parameter and/or to output an error message and/or to deactivate or activate at least one gas pressure control arrangement and/or to deactivate or activate at least one preheating arrangement and/or at least one dehumidification arrangement to deactivate or to activate and/or to deactivate or to activate a condensate treatment arrangement and/or to deactivate the gas pressure control system.

A corresponding temperature can be increased when adjusting the parameter, for example by activating a heating element and/or at least one heat generator. The corresponding temperature can be lowered by deactivating the heating element and/or the at least one heat generator.

For example, a pressure can be adjusted by opening or closing a valve. By issuing an error message, a user can be alerted to full collection items or malfunctions. A dew point temperature in an interior space can be influenced by activating a dehumidification arrangement.

A defective gas pressure control arrangement can be taken out of service by deactivating a gas pressure control arrangement. Here, if available, a reserve control arrangement can be activated in order to ensure a gas supply.

For example, a condensate treatment arrangement can be deactivated if treatment elements are not working correctly and a treated condensate does not meet the standard. In this case, threshold values and threshold value ranges can be selected in such a way that arrangements and/or assemblies and/or components that consume resources are only activated by the processing unit if this is necessary for the functionality.

Otherwise, the arrangements and/or assemblies and/or components can be deactivated or operated with less resource consumption. For example, finer adjustments of the components and/or the assemblies and/or the elements can be made possible by the overgrowth of further sensor signals and the generation of further control signals.

For example, the computing unit can use control signals to set a temperature of the heat carrier in the respective heat exchangers individually depending on a pressure difference between the high-pressure line and the corresponding low-pressure line and/or depending on a determined gas quantity of the corresponding gas pressure control arrangement.

As a result, the at least one computing unit can flexibly adapt the components and/or assemblies and/or arrangements to the respective gas pressure control system and its environment. Furthermore, these adjustments can reduce resource consumption and thereby reduce costs when operating the gas pressure control system.

In addition, the evaluation and control unit can be easily adapted to several gas pressure control systems by defining threshold values for sensor signals representing parameters, with a user finding the same operation on each gas pressure control system with such an evaluation and control unit, so that there is a time and cost for training Users can be reduced in particular by maintenance personnel of the gas pressure control systems.

According to a favorable embodiment of the invention, a first output limit value for the heat generator can be stored in the at least one storage unit, with the computing unit being designed to determine a total heat requirement of the gas pressure control system, which is made up of the heat requirement of the gas pressure control arrangements and a heat requirement of the at least one heating element. The processing unit is designed to generate control signals which activate a heat generator and operate it either until the total heat requirement is covered or until the first power limit value is reached, with the processing unit generating control signals which activate further heat generators one after the other until the total heat requirement is covered, or the heat generators until are activated at the first power limit. Here, an interface be designed to output the control signals to the corresponding heat generator.

The first at least one power limit value can be used to specify that the activated heat generators are only loaded up to this value, which can make it more difficult for the heat generators to wear out prematurely due to overloading. In this case, the first power limit value can be below a maximum power value. By switching on additional heat generators or by deactivating heat generators, the computing unit can react quickly to the currently determined total heat requirement.

In addition, a second output limit value for the heat generators can be stored in the memory unit, in which case if the total heat requirement is not covered, with all heat generators being operated up to the corresponding first output limit value, the processing unit is designed to generate control signals which activate the heat generators one after the other up to the second output limit value, until the total heat demand is covered or the heat generators are activated up to the second power limit.

Advantageously, the heat generators are all initially activated by the computing unit and operated up to the first power threshold value before the heat generators are operated up to the second threshold value. As a result, the existing heat generators can be loaded more evenly, since all heat generators are initially operated instead of some, which are operated at maximum output and others are not even activated. As a result, the wear on the heat generator can be more even. Additional performance threshold values can be stored in order to generate even utilization and more even wear.

According to a favorable embodiment of the invention, the computing unit can be designed to determine the total running time of each heat generator and, depending on the determined total running times of the heat generators, to create a sequence of activation and/or a sequence of power increase beyond the first power limit value. The heat generator with the shortest total running time is activated first or its output is increased first above the first threshold value. The heat generator with the longest total running time is activated last or its output is the last to be increased above the first threshold value. Advantageously, the heat generators can be utilized evenly depending on the running time. This can prevent the first heat generator from showing signs of wear while other heat generators are almost unused. The order in which the heat generators are activated or increased above the first threshold value is determined again and again. The running times of the heat generators can be determined and evaluated permanently or once a day or once a week or at another suitable interval.

In addition, an antifreeze temperature can be stored in the memory unit, with the processing unit being designed to determine a temperature in the area of the heat generator via corresponding temperature sensors, with the processing unit being designed to generate control signals which the heat generator, which are not activated to cover the total heat requirement, to activate in a predetermined first time interval for a second time interval.

In this way, the computing unit can advantageously prevent the inactive heat generators from freezing and being damaged. By activating the inactive heat generators, a pump can be activated in these heat generators, which pumps a heated heat carrier through the heat generator and thus heats the heat generator. As a result, only the heat generators that are needed to cover the heat requirement are permanently active, the inactive heat generators are nevertheless protected against forest damage in a resource-saving and cost-saving manner.

According to a further aspect of the invention, the object is achieved in a method for operating a gas pressure control system with at least one gas pressure control arrangement and at least one preheating arrangement, in that the high-pressure line of the at least one gas pressure control arrangement is connected to at least one of the heat generators via the corresponding heat exchanger as a function of at least one parameter is paired.

Advantageously, not all high-pressure lines are coupled across the board to at least one of the heat generators via the corresponding heat exchanger and are thereby heated. As a result, energy for operating the heat generators and thereby carbon dioxide and costs when operating the heat generators can be reduced.

A gas pressure control system, which can be operated by such a method, comprises at least at least one gas pressure control arrangement and at least one preheating arrangement. The at least one gas pressure control arrangement can at least one high-pressure line that can be released or closed with a valve, one low-pressure line and one control arrangement arranged between the high-pressure line and the low-pressure line. The at least one preheating arrangement can comprise at least one heat generator and a number of heat exchangers which is matched to the number of gas pressure regulating arrangements. The heat exchangers can each be assigned to one of the gas pressure control arrangements and coupled to the corresponding high-pressure line. The heat exchanger can be coupled to the high-pressure line assigned to it and at least one of the heat generators in order to release the preheating arrangement for the corresponding gas pressure control arrangement and to heat the gas present in the respective high-pressure line.

According to a favorable embodiment of the invention, a first parameter can be the state of the valve of the respective gas pressure control arrangement, the state of the at least one valve being determined and the corresponding high-pressure line, in a state of the respective valve releasing the high-pressure line, via the corresponding heat exchanger with at least one the heat generator is coupled. Alternatively, the high-pressure line is decoupled from the at least one heat generator when the respective valve is in a state that closes the high-pressure line. The coupling of the high-pressure line to at least one heat generator is advantageously dependent on a state of the valve of the high-pressure line and thereby on an operating state of the corresponding gas pressure control arrangement. In this case, only the high-pressure lines of active gas pressure control systems, ie gas pressure control systems with a valve in the open state, are heated or heated.

Here, the state of the valve can be checked for each gas pressure control arrangement and the gas in the high-pressure line or the high-pressure line can only be heated or heated if it is released and the gas relaxes, whereby the relaxation cold only arises. This prevents so-called reserve rails, which are not in operation and are therefore not cooled down by the Joules-Thomson effect, from being heated. As a result, energy for operating the heat generators and thereby carbon dioxide and costs when operating the heat generators can be reduced.

According to a favorable embodiment of the invention, a second parameter can be a gas quantity flowing through the corresponding high-pressure line, with a first gas quantity threshold value being specified for each high-pressure line and the gas quantity flowing through the high-pressure line being determined, with the corresponding high-pressure line via which the gas quantity flowing through the high-pressure line being exceeded if the first gas quantity threshold value is exceeded corresponding heat exchanger is coupled to at least one of the heat generators. The gas quantity threshold value can be zero, for example, which can be the case when the valve is closed. This value can also be determined by determining the state of the valve. Alternatively, a gas flow can be measured using a corresponding measuring arrangement. A stored first gas quantity threshold value can be entered manually or can be calculated using a corresponding method. This first gas quantity threshold value or several situation-dependent threshold values can be stored in a memory unit, for example in tabular form or as individual values, either individually for each gas pressure control arrangement or one value for all gas pressure control arrangements together.

If the gas volume falls below a further threshold value, in which case the further gas volume threshold value can correspond to the first gas volume threshold value, among other things, or the further gas volume threshold value can be smaller than the first gas volume threshold value, the gas pressure control arrangement can be decoupled from the at least one heat generator.

Advantageously, less relaxation cold can occur with a small amount of gas. By determining the amount of gas, activated gas pressure control arrangements can also be decoupled from the at least one heat generator if the amount of gas and the resulting relaxation cold is low. As a result, a further saving of energy for the heat generator and a further saving of carbon dioxide and a further cost saving is possible in an advantageous manner, even when the corresponding gas pressure control arrangement is in operation.

According to a favorable embodiment of the invention, at least two gas pressure control arrangements can be assigned to a common gas network, with a first gas pressure control arrangement being able to be selected as the operating control arrangement, which has a corresponding valve in the releasing state. A second gas pressure control arrangement can be selected as a reserve control arrangement for the first gas pressure control arrangement, the second gas pressure control arrangement having a corresponding valve in the state closing the corresponding high-pressure line. When a predetermined situation occurs, the valve of the at least one first gas pressure control arrangement can be switched to the closed state and the valve of the second gas pressure regulating arrangement are transferred to the open state.

A gas supply of the corresponding gas network can advantageously be safeguarded by a reserve control arrangement. Advantageously, a simple allocation of reserve track and service track is possible. Each gas pressure control rail can be used as an operating or reserve rail. By monitoring the status of the valve and/or monitoring the amount of gas, only the reserve control arrangements that are also in operation can be heated. Furthermore, an operating control arrangement that is defective or not active for other reasons cannot be heated. Another situation in which the valve of the operating control arrangement can have the closed valve can be maintenance or a detection of a defect. In this case, the valve of the operating rail can be closed manually or based on monitoring signals and the valve of the reserve control arrangement can be opened.

According to a favorable embodiment of the invention, a gas temperature threshold value or a gas temperature threshold value range can be stored for at least one gas pressure control arrangement and a gas temperature of the corresponding gas pressure control arrangement can be determined. The determined gas temperature can be compared with the stored gas temperature threshold value or the gas temperature threshold value range. If the determined gas temperature deviates from the gas temperature threshold value or the gas temperature threshold value range, the heat supply to the preheating arrangement can be adjusted via the heat exchanger.

Advantageously, instead of heating with a constant heating temperature, heating can take place with a variable heating temperature, so that further energy savings for the heat generator and further savings in carbon dioxide and further cost savings are possible. In this case, the gas temperature can be determined in addition to or as an alternative to determining the gas quantity or to determining the valve state. The gas temperature threshold can be entered manually or calculated. For example, the gas temperature threshold value for the high-pressure line can be determined from a target gas temperature of the low-pressure line and vice versa. In this case, the gas temperature threshold value can be provided for the gas temperature of the high-pressure line or the gas temperature of the low-pressure line.

The gas temperature in the high-pressure line or in the low-pressure line can be measured directly; alternatively, the gas temperature in one line can also be calculated from the gas temperature in the other line and the pressure reduction of the gas. A fluid can be used as the heat carrier, which transfers the heat from the at least one heat generator to the at least one heat exchanger. The hot or heated fluid from a flow side of the heat exchanger can be mixed with cooled fluid from the return side of the heat exchanger. As a result, the temperature to which the gas in the high-pressure line is heated can be influenced. Since heating is not carried out further than specified, further heating energy can be saved in an advantageous manner.

The threshold value can be adapted to various parameters, for example to the air humidity, a temperature in the interior, a dew point, or other operational specifications, for example to make it more difficult for components of the at least one gas pressure control arrangement to sweat or ice up.

According to a favorable embodiment of the invention, a dew point temperature can be determined in the interior space in which at least one gas pressure control arrangement is arranged. The determined dew point temperature can be stored as a gas temperature threshold value for the corresponding at least one gas pressure control arrangement. In particular, a minimum gas temperature threshold value can also be specified, the minimum gas temperature threshold value being stored as the gas temperature threshold value for the corresponding gas pressure control arrangement if the minimum gas temperature threshold value is greater than the corresponding dew point temperature determined.

The determined dew point temperature can be stored as a gas temperature threshold value for the corresponding gas pressure control arrangement if the determined dew point temperature is greater than the corresponding minimum gas temperature threshold value. In this case, the minimum gas temperature threshold value can be a temperature which is necessary for (fault-free) operation of the assemblies, in order to ensure functionality and/or in order to meet safety-related specifications. This can be useful on cold days in winter when the dew point is below the minimum gas temperature threshold due to the low humidity. As a result, for example, freezing of the arrangements can advantageously be prevented or made more difficult.

In addition, the specification of a maximum gas temperature threshold is conceivable, with the maximum gas temperature threshold as the gas temperature threshold for the corresponding Gas pressure control arrangement is stored when the maximum gas temperature threshold is less than the determined corresponding dew point temperature.

The determined dew point temperature can be stored as a gas temperature threshold value for the corresponding gas pressure control arrangement if the determined dew point temperature is lower than the corresponding maximum gas temperature threshold value. This can advantageously prevent the system from being heated up to an unnecessarily high level.

For example, the temperature in the low-pressure line or on an outer wall can be measured and compared to the dew point temperature or maximum gas temperature threshold value or minimum gas temperature threshold value stored as the gas temperature threshold value. Alternatively, the temperature of the low-pressure line can be determined from a temperature measured or estimated in the high-pressure line as the gas expands. This temperature can be compared with the stored gas temperature threshold. By heating the gas in the low-pressure line to the dew point temperature or higher, condensation of atmospheric moisture on the low-pressure line can advantageously be prevented or made more difficult, and the formation of puddles and rust or the penetration of moisture into measuring devices or other arrangements can be prevented or made more difficult. As a result, the service life of the gas pressure control system can be extended in an advantageous manner and the occurrence of defects and costly repairs can be delayed.

According to a favorable embodiment of the invention, a gas pressure threshold value or a gas pressure threshold value range for the gas can be stored in at least one gas pressure control arrangement. Additionally or alternatively, a pressure threshold value or a pressure threshold value range for a heat transfer medium of at least one circuit of the preheating arrangement can be specified. The pressure of the corresponding gas and/or the corresponding heat transfer medium can be determined, the determined value of the pressure being compared with the corresponding gas pressure threshold value or gas pressure threshold value range and/or corresponding pressure threshold value or pressure threshold value range. If there is a deviation, an error message can be generated and/or the preheating arrangement and/or the corresponding gas pressure control arrangement and/or the gas pressure control system can be deactivated.

If the gas pressure control arrangement is deactivated, the corresponding reserve control arrangement can be activated. Advantageously, by monitoring the pressure of the gas and the heat carrier, damage or leakage due to excessive pressure can be prevented or reduced. In addition, damage caused by too low a pressure can be prevented or reduced. Furthermore, possible error sources can be derived from the determined pressure values.

According to an advantageous embodiment of the invention, a dehumidification arrangement can be activated or coupled to the at least one gas pressure control arrangement.

For example, a second gas quantity threshold value can be defined for at least one of the gas pressure control arrangements. The dehumidification arrangement can be activated if the gas quantity determined for at least one of the gas pressure control arrangements is greater than the corresponding second gas quantity threshold value. Alternatively or additionally, at least one of the gas pressure control arrangements, in which the determined gas quantity is greater than the corresponding second gas quantity threshold value, can be coupled to the dehumidifying arrangement.

In a further embodiment of the method, the gas temperatures of the low-pressure lines can be determined in the case of at least two gas pressure control arrangements, the low-pressure line with the lowest gas temperature being coupled to the dehumidification arrangement.

A dew point in the interior, in which the at least one gas pressure control arrangement is arranged, can advantageously be influenced by the dehumidifying arrangement. In addition, it can be influenced where the moisture in the ambient air condenses out. This can prevent or make it more difficult for condensation and/or ice and/or rust to form on the at least low-pressure line and/or on the at least one control arrangement. In addition, the formation of puddles on the floor in the area of the at least one low-pressure line can be made more difficult by activating the dehumidifying arrangement.

According to a favorable embodiment of the invention, a target temperature and/or a target temperature range for a component of the gas pressure control system can be stored and the temperature of this component or in the area of this component can be determined. The determined temperature can be compared to the target temperature and/or the target temperature range and if the determined temperature deviates from the target temperature and/or the target temperature range, a heating output can be at least one Heating element can be adjusted in the area of this component. The heating element can be coupled to the at least one heat generator, which can be coupled to the at least one heat exchanger. Alternatively, the heating element can be designed as an electrothermal heating element or have an electrothermal heating element.

Advantageously, by monitoring a temperature and by maintaining a predetermined target temperature and/or a target temperature range, frost protection for a fragrance in an odor chamber and/or forest protection for condensate and/or frost protection for lines of a heating circuit of the preheating arrangement and/or or frost protection for measuring arrangements can be easily implemented.

According to a favorable embodiment of the invention, in a gas pressure control system with several heat generators, a first power limit value for the heat generators can be stored and a total heat requirement of the gas pressure control system can be determined. The total heat requirement can be made up of the heat requirement of the gas pressure control arrangements and the heat requirement of the at least one heating element. In this case, heat generators can be switched on and operated up to the corresponding first power limit value until the total heat requirement is covered or existing heat generators are operated up to the first power limit value.

The heat requirement can be inferred from a difference between a flow temperature and a return temperature of the at least one heat generator or from a difference between a flow temperature and a return temperature of the heat exchanger.

Here, only as many heat generators are operated in an advantageous manner as is required to cover the total heat requirement.

According to a favorable embodiment of the invention, a second power limit value can be stored for the heat generators, with insufficient coverage of the total heat requirement and when the heat generators are operated up to the corresponding first power limit value, the heat generators are operated one after the other up to the second power limit value, until the total heat requirement is covered or all of them Heat generators can be operated up to the second output limit value. A more even load on the heat generator can be achieved in an advantageous manner by means of several power limit values. In addition, it is possible to prevent a heat generator from running at maximum load while another heat generator is not even activated. In this way, wear and tear on individual heat generators can be delayed and the service life of the heat generators can be extended as a result.

According to a favorable embodiment of the invention, the total running time of each heat generator can be determined and the sequence of activation or the sequence of the power increase beyond the first power limit value can be made dependent on the total running time. The heat generator with the shortest total running time can be activated first or its output can be the first to be increased above the first output limit value, and the heat generator with the longest total running time can be activated last or its output can be the last to be increased above the first output limit value. Advantageously, the heat generators can be utilized evenly in this way.

According to a favorable embodiment of the invention, an antifreeze temperature can be stored, with the temperature falling below the antifreeze temperature in the area of the heat generator, the heat generators that do not contribute to covering the total heat requirement are activated in a predetermined first time interval for a second time interval.

This can advantageously prevent the inactive heat generators from freezing and being damaged. By activating the inactive heat generators, a pump can be activated in the heat generators, which pumps a heated heat carrier through the heat generator and thus heats the heat generator. As a result, only the heat generators that are needed to cover the heat requirement are permanently active, the inactive heat generators are nevertheless protected against forest damage in a resource-saving and cost-saving manner.

According to a favorable embodiment of the invention, the at least one heat generator can be coupled with a condensate processing arrangement, in particular the condensate of the at least one heat generator can be routed and processed through at least one processing element and the processed condensate can be discharged to an environment. This means that the condensate can also be disposed of cleanly in an area that is difficult to access, for example without access to the sewage system.

According to a favorable embodiment of the invention, the processed condensate can be checked by a testing arrangement, with a conductivity limit value or a conductivity limit value range being specified in particular can. In particular, the conductivity of the treated condensate can be determined and compared to the conductivity limit value or the conductivity limit value range, with the condensate being collected if the conductivity limit value or the conductivity limit value range is exceeded or passed to at least one further treatment element, and if it falls below the conductivity limit value or the upper value of the conductivity limit value range, it is sent to the environment is released. Alternatively, another determination of the condensate quality is also possible.

According to a favorable embodiment of the invention, at least one filling quantity threshold value can be stored for at least one collecting element and the filling quantity of at least one of the collecting elements can be determined. The filling quantities determined can be compared with the corresponding filling quantity threshold value.

When the filling quantity threshold value is reached, the condensate can be routed to a further collection element. If the existing collection elements are filled up to the corresponding filling quantity threshold value, an error message can be issued. Additionally or alternatively, the preheating arrangement and/or at least one of the gas pressure control arrangements and/or the gas control system can be deactivated. In this way, contaminated condensate can be effectively prevented from being discharged to an environment.

According to a further aspect of the invention, the object is achieved by a computer program product which comprises instructions which, when executed by a computer, cause the computer to carry out a method described above, in particular automatically, with a high-pressure line of at least one gas pressure control arrangement depending on at least one Parameter is coupled via a corresponding heat exchanger with at least one heat generator.

The computer program product can be stored, for example, in a central evaluation and control unit, which can be arranged in a switch cabinet. As a result, processes in the gas pressure regulation system can be centrally controlled and monitored. Alternatively, several evaluation and control units can execute parts of the method and be monitored and/or controlled by the central evaluation and control unit. In this case, the correspondingly adapted computer program product can be stored in the evaluation and control units.

The number of controllers, control units, evaluation and control units can be greatly reduced by the gas pressure control system according to the invention, the analysis and control unit according to the invention, the method for operating the gas pressure control system according to the invention and the computer program product.

In addition, central control can be implemented by a central evaluation and control unit, as a result of which transmission errors and communication errors between the evaluation and control units can be reduced. In addition, the central control can be better adapted to the corresponding gas pressure control system. For example, the central evaluation and control unit can work with the computer program product.

Here, the adjustment to the gas pressure control system and thus the upgrading or conversion of a gas pressure control system can be facilitated. In addition, arrangements and components can work together better and mesh like gears, so that the functionality and operation can be improved.

In addition, the methods and controls can be standardized in such a way that a user knows how the control works on different gas pressure control arrangements without having to read in again. In this way, in particular, problems can be avoided which arise when several incompatible controls work together. In addition, the space requirement of a central controller can be smaller than that of several different controllers.

Furthermore, the setting of limit values, threshold values, limit value ranges and threshold value ranges can be simplified or facilitated by the central controller.

character list

Further advantages result from the following description of the drawing. Exemplary embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into further meaningful combinations.

• 1 eine schematische Darstellung eines Ausführungsbeispiels der erfindungsgemäßen Gasdruckregelanlage;
• 2 eine schematische Darstellung eines Ausführungsbeispiels der Vorwärmungsanordnung der Gasdruckregelanlage;
• 3 eine schematische Darstellung eines Ausführungsbeispiels der Kondensaufbereitungsanordnung;
• 4 eine schematische Darstellung eines Ausführungsbeispiels der erfindungsgemäßen Auswerte- und Steuereinheit;
• 5 eine schematische Darstellung eines Ausführungsbeispiels des erfindungsgemäßen Verfahrens zum Betreiben einer Gasdruckregelanlage;
• 6 weitere Verfahrensschritte des Verfahrens zum Betreiben einer Gasdruckregelanlage, welche eine Vorwärmungsanordnung betreffen; und
• 7 weitere Verfahrensschritte des Verfahrens zum Betreiben einer Gasdruckregelanlage, welche eine Heizkaskade betreffen.

Examples show:

• 1 a schematic representation of an embodiment of the gas pressure control system according to the invention;
• 2 a schematic representation of an embodiment of the preheating arrangement of the gas pressure control system;
• 3 a schematic representation of an embodiment of the condensation treatment arrangement;
• 4 a schematic representation of an embodiment of the evaluation and control unit according to the invention;
• 5 a schematic representation of an embodiment of the method according to the invention for operating a gas pressure control system;
• 6 further method steps of the method for operating a gas pressure control system, which relate to a preheating arrangement; and
• 7 further method steps of the method for operating a gas pressure control system, which relate to a heating cascade.

Embodiments of the invention

In the figures, components of the same type or having the same effect are denoted by the same reference symbols. The figures only show examples and are not to be understood as limiting. The components and elements shown, their design and use can vary according to the considerations of a person skilled in the art and can be adapted to the respective applications.

1 shows schematically a gas pressure control system 100 according to an embodiment of the invention, with two gas pressure control arrangements 300 so-called control rails.

2 shows schematically a preheating arrangement 200 of the gas pressure control system 100 according to an embodiment of the invention.

How out 1 and 2 As can be seen, the gas pressure control system 100 shown comprises two gas pressure control arrangements 300, at least one preheating arrangement 200 and at least one evaluation and control unit 700 ( 4 ). The gas pressure control arrangements 300 are arranged in an interior space 102 . The number of gas pressure control arrangements 300 in a gas pressure control system 100 can vary between one and eight. If a gas pressure control system 100 has more than eight gas pressure control arrangements 300, these are arranged in another interior space, and they can form their own gas pressure control system 100 with its own controller and its own preheating arrangement 200.

How out 1 As can further be seen, the gas pressure control arrangements 300 each comprise at least one high-pressure line 310 which can be opened or closed by a valve 314, a low-pressure line 330 and a control arrangement 320 arranged between the high-pressure line 310 and the low-pressure line 330. The valve 314 can be embodied as a safety shut-off valve. The control assembly 320 may also include a valve.

How from the 1 and 2 As can further be seen, the preheating arrangement 200 in the illustrated exemplary embodiment comprises two heat generators 212 and at least one number of heat exchangers 230 adapted to the number of gas pressure regulating arrangements 300.

In the exemplary embodiment shown, the heat generators 212 are in the form of gas boilers which are operated with the gas whose pressure is regulated in the gas pressure control system 100 . The gas can be, for example, natural gas or hydrogen or a mixture. The gas boilers burn the gas and the heat generated heats the heat transfer medium, for example a fluid, in particular water, with the heat transfer medium flowing at least partially through or around the heat exchanger 230 in the coupled state and heating it.

In the exemplary embodiment, three heat exchangers 230 are shown, with only two heat exchangers 230 each being assigned to one of the gas pressure control arrangements 300 and coupled to the corresponding high-pressure line 310 . The at least one evaluation and control unit 700 ( 4 ) can couple the respective heat exchanger 230 to the associated high-pressure line 310 and at least one of the heat generators 212 in order to release the preheating arrangement 200 for the corresponding gas pressure control arrangement 300 and to heat the gas present in the respective high-pressure line 310.

The at least one evaluation and control unit 700 ( 4 ) couples the high-pressure lines 310 of the gas pressure control arrangements 300 to at least one of the heat generators 212 via the corresponding heat exchanger 230 as a function of at least one parameter.

The parameters may include at least one of at least two parameters.

A first parameter can be a state of the valve 314 of the respective gas pressure control arrangement 300 . A sensor unit 313 ( 4 ) monitors the state of the at least one valve 314 and the at least one evaluation and control unit 700 couples the corresponding high-pressure line 310, when the respective valve 314 releases the high-pressure line 310, to at least one of the heat generators 212 via the corresponding heat exchanger 230.

The at least one evaluation and control unit 700 decouples the high-pressure line 310 from the at least one heat generator 212 when the respective valve 314 is in a state that closes the high-pressure line 310.

A second parameter may be an amount of gas flowing through the corresponding high-pressure line 310 . In the exemplary embodiment shown, for each high-pressure line 310 a storage unit 772 ( 4 ) a first gas quantity threshold value is stored. Alternatively, the same first gas quantity threshold value can be stored in memory unit 772 for all high-pressure lines 310 . A gas measuring arrangement 312 determines a quantity of gas flowing through the corresponding high-pressure line 310 . If the first gas quantity threshold value is exceeded, the at least one evaluation and control unit 700 couples the corresponding high-pressure line 310 to at least one of the heat generators 212 via the corresponding heat exchanger 230. The sensor signals Se of the gas measuring arrangements 312 can also be used to determine consumption. The gas measuring arrangements 312 can be designed as gas meters.

The stored first gas quantity threshold value can be entered manually via an input unit 774 ( 4 ) are entered, or are calculated by the at least one evaluation and control unit 700 using a corresponding method. This first gas quantity threshold value or several situation-dependent threshold values can be stored in a storage unit 772 ( 4 ) are stored, for example in tabular form or as individual values. Either for each gas pressure control assembly 300 individually or a value for all gas pressure control assembly 300 together.

If the gas volume falls below a further threshold value, the gas pressure control arrangement 300 can be decoupled from the preheating arrangement 200 . In this case, the first gas quantity threshold value is greater than or equal to the further gas quantity threshold value.

The gas pressure control system 100 shown can be designed as a so-called GDRM (gas pressure control system and gas pressure measuring system). Here, the gas pressure control system 100 can expand the gas with a storage or transport pressure of between 40 and 70 bar to a pressure of between 16 and 25 bar for use and further processing. An expansion of the gas to a pressure of 13 bar is also conceivable. The cooling of the gas resulting from the pressure reduction is proportional to the pressure difference.

How out 1 and 2 It can also be seen that the two gas pressure control arrangements 300 shown can be assigned to a common gas network. Alternatively, the two gas pressure control arrangements 300 can be assigned to different gas networks. If both gas pressure control arrangements 300 are assigned to the same gas network, then a first gas pressure control arrangement 300 is selected as the operating control arrangement or operating line, which has a corresponding valve 314 in the releasing state, and a second gas pressure control arrangement 300 is selected as the reserve control arrangement or reserve line for the first gas pressure control arrangement 300. The second gas pressure control arrangement 300 has a corresponding valve 314 in the state in which it closes the corresponding high-pressure line 310 .

When a predetermined situation occurs, evaluation and control unit 700 and/or an arrangement of the safety shut-off valve switches valve 314 of the at least one first gas pressure regulating arrangement 300 to the closed state and switches valve 314 of the second gas pressure regulating arrangement 300 to the open state. The valve 314 or valves 314 can also be switched to the open or closed position by a user, for example in a control center or by a user on site. The input unit 774 can be used to assign the reserve track and the service track in a simple manner.

There is the possibility for each gas pressure control arrangement 300 to be used as an operating or reserve track if at least two gas pressure control arrangements 300 are assigned to the same gas network.

How out 4 As can be seen, the evaluation and control unit 700 for a gas pressure regulation system 100 comprises a plurality of interfaces 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712. At least two of the interfaces 701, 702 are one assigned to the gas pressure control arrangements 300. In the 4 only one interface 701, 702 is shown to maintain clarity. Since the gas pressure control system 100 shown includes two gas pressure control assemblies 300, the evaluation and control unit 700 includes a separate interface 701 and 702 for each of the gas pressure control assemblies 300. Other interfaces 703, 704, 705, 706, 707, 708, 709, 710 , 711, 712 if the received data is assigned to a gas pressure control arrangement 300 net are to be present for each gas pressure control arrangement 300 .

How out 4 It can also be seen that at least one first interface 701 is designed to receive at least one sensor signal Se from a sensor unit 313, 314 of this gas pressure control arrangement 300 and to forward it to at least one computing unit 770 for evaluation. The evaluation and control unit 700 shown comprises a computing unit 770 and a memory unit 772.

In an alternative exemplary embodiment that is not shown, the evaluation and control unit can have a plurality of computing units 770 and memory units 772 . These can also be arranged outside of a housing of the evaluation and control unit 700 . As a result, the interfaces 701, 702, 703, 704, 705, 707, 710, 711, 712 can also receive data that has already been at least partially evaluated and forward it to the central processing unit 770.

The processing unit 770 is designed to assign the received sensor signals Se to the respective gas pressure control arrangement 300 and to compare the sensor signals Se with at least one corresponding threshold value and to generate at least one corresponding control signal St assigned to the gas pressure control arrangement 300 as a function of the comparison. At least one second interface 702 is designed to send the at least one control signal St, which is assigned to this gas pressure control arrangement 300, to a coupling arrangement 240 of a preheating arrangement 200, which is assigned to this gas pressure control arrangement 300.

Depending on the at least one control signal St, the coupling arrangement 240 couples the corresponding high-pressure line 310 to at least one heat generator 212 of the preheating arrangement 200 or decouples the corresponding high-pressure line 310 and the at least one heat generator 212 from one another.

How from the 1 , 2 and 4 As can further be seen, a gas temperature threshold value or a gas temperature threshold value range for at least one gas pressure control arrangement 300 is stored in the memory unit 772 . A temperature sensor 332 determines a gas temperature of the corresponding gas pressure control arrangement 300.

in 1 illustrated embodiment, the gas temperature in the low-pressure line 330 is determined. In an alternative embodiment, not shown, the gas temperature in the high-pressure line 310 can be determined additionally or alternatively. The evaluation and control unit 700 compares the determined gas temperature with the stored gas temperature threshold value or the gas temperature threshold value range.

If the determined gas temperature deviates from the gas temperature threshold value or the gas temperature threshold value range, the evaluation and control unit 700 adjusts the supply of heat to the preheating arrangement 200 via the heat exchanger 230 .

How out 2 It can also be seen that the preheating arrangement 200 shown comprises two heat generators 212 connected in series, which can be deactivated via an emergency stop switch 214 . The heat generators are arranged in a first heat circuit 210 which, starting from the heat generators 212 , has a flow in the direction of a hydraulic switch 216 and, starting from the hydraulic switch 216 in the direction of the heat generator 212 , has a return. In an alternative embodiment that is not shown, the preheating arrangement 200 can have more than two heat generators 212 or fewer than two heat generators 212 . In addition, instead of the hydraulic separator 216, another suitable valve or another suitable heat exchanger can be arranged.

How out 2 It can also be seen that the heat exchangers 230 are arranged in parallel in a second circuit 220 . The coupling arrangements 240 shown each include a three-way valve 246 and further valves 242. By opening the valves 242, 246, a heat carrier can circulate between the heat generators 212 and the corresponding heat exchanger 230. A pump 244 supports this circulation. The three-way valve 246 can be used to mix heated heat transfer medium from an inflow 247 with a cooled heat transfer medium from a return flow 248 and thus set the temperature to which the gas in the corresponding high-pressure line 310 is to be heated. A heat transfer medium temperature can be set for each heat exchanger 230 . In an alternative embodiment, not shown, the coupling arrangement 240 does not include a three-way valve 246. As a result, the temperature of the heat transfer medium cannot be set individually and essentially corresponds to the flow temperature of the heat generator 212.

How out 2 can further be seen, the inflows 247 and return flows 248 of the heat exchanger 230 are transported in headers 221, 222. Other suitable arrangements are also possible.

How out 1 , 2 and 4 is further seen, a sensor assembly 108 a Determine the dew point temperature in the interior 102, in which at least one gas pressure control arrangement 300 is arranged, and store the determined dew point temperature as a gas temperature threshold value for the corresponding at least one gas pressure control arrangement 300 in the memory unit 772. In the exemplary embodiment shown, sensor arrangement 108 includes an external temperature sensor 104, an external air humidity sensor 106 and the at least one evaluation and control unit 700, which determines the dew point from sensor data SD from air humidity sensor 106 and temperature signal TS from temperature sensor 104. Alternatively, an external computing unit can determine the dew point and output it to the evaluation and control unit 700 .

How out 1 It can also be seen that the temperature in the low-pressure line 330 or on an outer wall of the low-pressure line 330 is measured and compared with the dew point temperature stored as the gas temperature threshold value. Alternatively, the temperature of the low-pressure line 330 can be determined from a temperature measured or estimated in the high-pressure line 310 with the expansion or the pressure reduction of the gas. This temperature can be compared with the stored threshold value. By heating the gas in the low-pressure line 330 to the dew point temperature or higher, condensation of atmospheric moisture on the low-pressure line 330 or on the control arrangement 320 can be prevented or made more difficult.

In a further embodiment, a minimum gas temperature threshold value can be stored in the storage unit 772 . The evaluation and control unit 700 selects the minimum gas temperature threshold value as the gas temperature threshold value for the corresponding gas pressure control arrangement 300 if the minimum gas temperature threshold value is greater than the determined corresponding dew point temperature. The evaluation and control unit 700 selects the determined dew point temperature as the gas temperature threshold value for the corresponding gas pressure control arrangement 300 if the determined dew point temperature is greater than the corresponding gas temperature threshold value. The minimum gas temperature threshold value can be a temperature that is necessary for (fault-free) operation of the assemblies, to ensure functionality, and/or to meet safety-related specifications.

In addition, there may be a temperature below which a hydrate in the low pressure line 330 may fail. Defining the minimum gas temperature threshold can be useful on cold days in winter when the dew point is below this temperature due to the low humidity. As a result, freezing of the arrangements or precipitation of hydrate in the low-pressure line 330 can be prevented or made more difficult.

In addition, the specification of a maximum gas temperature threshold value is conceivable, with the maximum gas temperature threshold value being stored as a gas temperature threshold value for the corresponding gas pressure control arrangement 300 if the maximum gas temperature threshold value is lower than the determined corresponding dew point temperature, and with the determined dew point temperature being stored as a gas temperature threshold value for the corresponding gas pressure control arrangement 300 if the determined Dew point temperature is less than the corresponding maximum gas temperature threshold. This can prevent the system from being overheated unnecessarily.

How out 2 and 4 It can also be seen that a pressure threshold value or a pressure threshold value range for a heat transfer medium of at least one circuit 210, 220 of the preheating arrangement 200 is stored in the memory unit 772, with a pressure sensor arrangement 218 determining the pressure of the heat transfer medium. The at least one evaluation and control unit 700 compares the determined pressure value with the corresponding pressure threshold value or pressure threshold value range. If the determined pressure deviates from the pressure threshold value or pressure threshold value range, evaluation and control unit 700 generates an error message and/or deactivates preheating arrangement 200 and/or deactivates gas pressure regulation system 100.

In an alternative embodiment that is not shown, a gas pressure threshold value or a gas pressure threshold value range for the gas of at least one gas pressure control arrangement 300 is stored in memory unit 772 . A pressure sensor arrangement, not shown, can determine the pressure of the corresponding gas, with the at least one evaluation and control unit 700 comparing the determined value of the pressure with the corresponding gas pressure threshold value or gas pressure threshold range and generating an error message if the determined pressure deviates from the corresponding gas pressure threshold value or gas pressure threshold range, and /or the corresponding gas pressure control arrangement 300 and/or the gas pressure control system 100 is deactivated. In this case, when the gas pressure control arrangement 300 is deactivated, the corresponding reserve control arrangement can be activated by the evaluation and control unit 700 or manually.

How out 1 and 4 is further evident, the at least one evaluation and control unit 700 is designed to activate a dehumidification arrangement 400 or the dehumidification arrangement 400 with the at least one gas pressure control assembly 300 to couple.

How out 1 It can further be seen that the dehumidifying arrangement 400 shown comprises a line 410 between a ventilation arrangement and a low-pressure line 330, a plurality of valves 412, a pump 414, a coupling region 420 with a ventilation arrangement and a coupling region 430 with a low-pressure line 330. The line 410 comprises an inflow, which conducts a refrigerant between the coupling area 430 of the low-pressure line 330 and the coupling area 420 of the ventilation arrangement, and a return flow, which conducts the refrigerant between the coupling area 420 of the ventilation arrangement and the coupling area 430 of the low-pressure line 330. In this case, the refrigerant is cooled in the coupling area 430 with the low-pressure line 330 and transported by the pump 414 via the inflow of the line 410 through the open valve 412 to the coupling area 420 with a ventilation arrangement. In the coupling area 420 with the ventilation arrangement, the cold carrier absorbs heat from the ventilation fluid, the ventilation fluid in the coupling area 420 being cooled to a temperature which prevails in the area of the corresponding low-pressure line 330 .

As a result, the moisture from the ventilation fluid can already condense out in the coupling area 420 so that less moisture reaches the interior space 102 . This can make it more difficult for the moisture to condense in the area of the low-pressure lines 330 . In addition, the dew point temperature in the interior 102 can thereby be reduced. The refrigerant is transported back to the coupling area 430 with the low-pressure line 330 via the return flow of the line 410 .

In an alternative embodiment that is not shown, other suitable dehumidifying arrangements 400 can also be used to reduce the humidity in the interior space 102 .

In an alternative embodiment that is not shown, a second gas quantity threshold value for at least one of the gas pressure control arrangements 300 is stored in the storage unit 772 . The evaluation and control unit 700 activates the dehumidification arrangement 400 when the gas quantity determined for at least one of the gas pressure control arrangements 300 is greater than the corresponding second gas quantity threshold value. Alternatively, the at least one evaluation and control unit 700 couples the at least one gas pressure regulation arrangement 300, in which the gas quantity determined is greater than the corresponding second gas quantity threshold value, to the dehumidifying arrangement 400.

How out 1 and 4 it can also be seen that the evaluation and control unit 700 of at least one gas pressure control arrangement 300 determines the gas temperature in the low-pressure line 330 or the temperature of the low-pressure line 330, for example on an outside. A temperature sensor 332 transmits corresponding temperature signals TS to evaluation and control unit 700. Evaluation and control unit 700 couples low-pressure line 330 with the lowest gas temperature to dehumidification arrangement 400.

How out 1 and 4 As can also be seen, a setpoint temperature and/or a setpoint temperature range for a component of the gas pressure control system 100 is stored in the storage unit 772 . A temperature sensor 104, which in the illustrated embodiment is an element of the sensor arrangement 108 for determining the dew point in the interior 102, determines the temperature TS of this component or in the region of this component. The evaluation and control unit 700 compares the determined temperature TS with the target temperature and/or the target temperature range. If the determined temperature TS deviates from the setpoint temperature and/or the setpoint temperature range, the evaluation and control unit 700 adjusts a heating output of at least one heating element 550 ( 3 ) in the area of this component.

In the exemplary embodiment shown, the heating element 550 heats an outlet 540 of a condensate treatment arrangement 500. The heating element 550 can in particular be designed as an electrothermal heating element or have an electrothermal heating element. In addition, several different heating elements 550 can heat the area of the component. An activation sequence of the differently designed heating elements is also conceivable here. As a result, freezing of a treated condensate can be made more difficult or prevented. Further temperature sensors 104 and heating elements 550 can be arranged in other rooms, for example an odor room, in order to make it more difficult for a fragrance to freeze. In addition, the heating elements 550 can provide forest protection for lines of the first heating circuit 210 or the second heating circuit 220 of the preheating arrangement 200, or for lines 410 of the refrigerant or for measuring arrangements and/or measuring devices. In the exemplary embodiment shown, the heating elements 550 are coupled to the heat generators 212 of the preheating arrangement 200 . In an alternative embodiment, the heating elements 550 can also be coupled to another suitable heat source or can have another suitable heat source.

How out 4 As can also be seen, in the case of a gas pressure control system 100 with a plurality of heat generators 212, a first output limit value for the heat generators 212 is stored in the storage unit 772 and the evaluation and control unit 700 determines a total heat requirement of the gas pressure control system 100, which is derived from the heat requirement of the gas pressure control arrangements 300 and the heat requirement of the at least one heating element 550.

Evaluation and control unit 700 is designed to switch on heat generator 212 and operate it up to the corresponding first power limit until the total heat requirement is covered or all available heat generators 212 are operated up to the first power limit. The evaluation and control unit 700 determines the heat requirement or estimates the heat requirement of the gas pressure control arrangements 300 from a difference between the flow temperature of the heat carrier and the return temperature of the heat carrier. Other ways of calculating the heat requirement are also conceivable.

How out 4 it can also be seen that a second output limit value for the heat generators 212 is stored in the storage unit 772 . If the total heat requirement is not covered and if the heat generator 212 is operated up to the corresponding first power limit value, the evaluation and control unit 700 operates the heat generator 212 one after the other up to the second power limit value until the total heat requirement is covered or the existing heat generators 212 are operated up to the second power limit value . In the exemplary embodiment shown, evaluation and control unit 700 is designed to determine the total running time of each heat generator 212 and to create a sequence for activating heat generators 212 or a sequence for increasing power beyond the first power limit value, depending on the running time. Evaluation and control unit 700 is designed, in particular, to activate the heat generator 212 with the shortest total runtime first or to increase its output first beyond the first power limit value and to activate the heat generator 212 with the longest total runtime last or to increase its output as the first increase the latter beyond the first power limit. A uniform utilization of the heat generator 212 is achieved here.

In the exemplary embodiment shown, an antifreeze temperature is stored in the storage unit 772 . A temperature sensor 104 determines the temperature in the area of the heat generator 212, and the evaluation and control unit 700 is designed to compare the frost protection temperature with the determined temperature and, if the frost protection temperature is not reached, the heat generator 212, which does not contribute to covering the overall heat requirement, in to activate a predetermined first time interval for a second time interval. In this case, the second time interval can be chosen to be short. It is sufficient if a pump within the corresponding heat generator 212 pumps warm water through the heat generator 212 . The first time interval can be selected in such a way that the heat transfer medium in the heat generator 212 does not freeze at the determined temperatures.

3 shows schematically a condensate treatment arrangement 500.

A condensate treatment arrangement 500 is essentially only required if no sewage connection is available and if the intervals for collecting the condensate are too short.

How out 3 As can be seen, the condensate treatment arrangement 500 in the illustrated exemplary embodiment comprises a coupling to the heat generators 212, via which the condensate formed is guided in a line to at least one treatment element 520. A condensate pump 510 pumps the condensate in the direction of the at least one treatment element 520. A backup condensate pump 514 is arranged below the condensate pump 510 in the vertical direction. In the event that the condensate pump 510 is defective, the condensate can flow to the backup condensate pump 514 via an overflow 512 and can be pumped from there to the at least one treatment element 520 . If the condensate pump 510 is defective, an error message can be generated. In the event of a defect in the replacement condensate pump 514, the preheating arrangement 200 can be shut down in an emergency. This can ensure that no contaminated condensate gets into the environment 600 of the gas pressure control system 100 .

The at least one processing element 520 is designed to process the condensate of the at least one heat generator 212 and to release the processed condensate to an environment 600. The treated condensate is of drinking water quality.

How out 3 It can also be seen that the condensate treatment arrangement 500 shown comprises two treatment elements 520, which are provided for the treatment of the condensate, and two test arrangements 530, in order to check the treated condensate. Additionally, the condensate treatment assembly 500 may not have illustrated collecting arrangement for collecting the condensate. The number of processing elements 520 depends on the number and utilization of the heat generators 212. More or fewer than two processing elements 520 are therefore also conceivable. In the exemplary embodiment shown, the testing arrangements 530 can in particular determine a conductivity of the treated condensate. The evaluation and control unit 700 can compare the determined conductivity with a stored conductivity limit value. If the conductivity limit value is exceeded, a collection arrangement can collect the condensate or at least one further treatment element 520 can treat the condensate. An outlet 540 releases the condensate to the environment 600 when the conductivity falls below the limit value. Other determinations of the condensate quality are also possible.

A filling quantity threshold value can be stored in the memory unit 772 for existing collecting elements of the condensate collecting arrangement 500, with a filling quantity measuring arrangement 560 determining the filling quantities of the existing collecting elements and comparing the determined filling quantities with the corresponding filling quantity threshold values. When the filling quantity threshold value is reached, another collection element can collect the condensate, or if the existing collection elements are filled up to the corresponding filling quantity threshold value, the at least one evaluation and control unit 700 can output an error message and/or the preheating arrangement 200 and/or at least one of the gas pressure regulating arrangements 300 and /or the gas control system 100 deactivated.

How out 4 It can also be seen that the evaluation and control unit 700 is networked with measuring arrangements, components, arrangements and assemblies of the gas pressure control system 100 and forms a central evaluation and control unit 700 . In particular, the evaluation and control unit 700 is networked with measuring arrangements and components of the gas pressure control arrangements 300 , the preheating arrangement 200 , the dehumidification arrangement 400 and the condensate treatment arrangement 500 . This creates an intuitive and consistent operation for different gas pressure control systems 100 . In addition, the individual arrangements can work together more effectively, thereby reducing resource consumption. Furthermore, the evaluation and control unit can react quickly to various predefined events.

How out 4 As can further be seen, the evaluation and control unit 700 in the exemplary embodiment illustrated comprises a plurality of interfaces 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, at least one memory unit 772, at least one arithmetic unit 770 and at least one input unit 774. The evaluation and control unit 700 can have other components that are not shown. Alternatively, the input unit 774 or the storage unit 774 can also be part of another component.

How out 4 As can further be seen, memory unit 772 is designed to store threshold values and/or threshold value ranges for sensor signals Se, Se, TS, DS, SD, FS, LS representing parameters and to make them available to the at least one computing unit 770.

How out 4 As can further be seen, the input unit 774 is designed to enable the input and storage of threshold values and/or threshold value ranges. With at least two gas pressure control arrangements 300 assigned to a common gas network, the input unit can be used to identify a first gas pressure control arrangement 300 as an operating control arrangement and a second gas pressure control arrangement 300 as a reserve control arrangement. An output unit (not shown) or an output unit linked to the input unit 774, for example a touchscreen, can output determined measured values or stored threshold values or threshold value ranges or a circuit diagram to a user.

How out 4 As can also be seen, at least two of interfaces 701, 702 are assigned to a gas pressure control arrangement 300, with at least one first interface 701 being designed to receive at least one sensor signal Se from a sensor unit 313, 314 of this gas pressure control arrangement 300 and to forward it to processing unit 770 for evaluation. Arithmetic unit 770 is designed to assign the received sensor signals Se to the respective gas pressure control arrangement 300 and to compare the sensor signals Se with at least one corresponding threshold value or threshold value range and to generate at least one corresponding control signal St assigned to the gas pressure control arrangement 300 as a function of the comparison. At least one second interface 702 is designed to send the at least one control signal St, which is assigned to this gas pressure control arrangement 300, to a coupling arrangement 240 of a preheating arrangement 200, which is assigned to this gas pressure control arrangement 300. Depending on the at least one control signal St, the coupling arrangement 240 couples the corresponding high-pressure line 310 to at least one heat generator 212 of the preheating arrangement 200. Alternatively, the coupling arrangement 240 decouples the corresponding high pressure line 310 and the at least one heat generator 212 from each other.

How out 4 As can further be seen, at least one further interface 703, 704, 705, 707, 710, 711, 712 of the evaluation and control unit 700 is provided in order to transmit sensor signals TS, DS, SD, FS, LS representing parameters to at least one sensor unit monitoring the corresponding parameter and forward it to processing unit 770, with a corresponding threshold value or threshold value range being stored in memory unit 772, which the at least one memory unit 772 makes available to processing unit 770. The processing unit 770 is designed to evaluate the received sensor signals TS, DS, SD, FS, LS and to compare them with the corresponding stored threshold value or threshold value range. The computing unit 770 is also designed to generate at least one control signal St if the evaluated sensor signals TS, DS, SD, FS, LS of the corresponding sensor unit deviate from the corresponding threshold value or the corresponding threshold value range.

At least one further interface 706, 708, 709 is designed to output the generated control signals St to an arrangement that regulates the corresponding parameter and/or to an arrangement whose state depends on the parameter.

In this case, the control signals St are designed to adapt the corresponding parameter and/or to output an error message and/or to deactivate or activate at least one gas pressure control arrangement 300 and/or to deactivate or activate at least one preheating arrangement 200 and/or to deactivate at least one dehumidification arrangement 400 or to activate and/or to deactivate or activate a condensate treatment arrangement 500 and/or to deactivate the gas pressure control system 100 .

For example, a third interface 703 can be assigned to a gas pressure control arrangement 300 and be designed to forward sensor signals TS from a temperature sensor 332 of this gas pressure control arrangement 300 to the processing unit 770 . A gas temperature threshold value or a gas temperature threshold value range of this gas pressure control arrangement 300 is stored in the storage unit 772 , which the storage unit 772 makes available to the arithmetic unit 770 . The processing unit 770 is designed to evaluate the received sensor signals TS and to compare them with the corresponding stored gas temperature threshold value or gas temperature threshold value range. Processing unit 770 is designed to generate at least one control signal St if the determined sensor signals TS of temperature sensor 332 deviate from the gas temperature threshold value or the gas temperature threshold value range and to output it to the corresponding coupling arrangement 240 via the corresponding second interface 702 in order to start the supply of heat to preheating arrangement 200 adjust the corresponding high-pressure line 310 .

For example, a fourth interface 704 can be designed to receive sensor data SD that represents a dew point temperature of an interior 102 in which at least one gas pressure control arrangement 300 is arranged. Fourth interface 704 is designed in particular to forward this sensor data SD to processing unit 770 for evaluation and/or to storage unit 772 for storage, with processing unit 770 being designed to use this sensor data SD as a gas temperature threshold value. A minimum gas temperature threshold value can be stored in the storage unit 772 here. The computing unit 770 is designed to compare the minimum gas temperature threshold value with the sensor data SD representing the dew point temperature of the interior 102 . The computing unit 770 selects the minimum gas temperature threshold value as the gas temperature threshold value for the corresponding gas pressure control arrangement 300 if the minimum gas temperature threshold value is greater than the dew point temperature resulting from the sensor data SD. The processing unit 770 selects the sensor data SD representing the dew point temperature of the interior 102 as the gas temperature threshold value for the corresponding gas pressure control arrangement 300 if the dew point temperature resulting from the sensor data SD is greater than the corresponding minimum gas temperature threshold value.

For example, at least one gas pressure threshold value or a gas pressure threshold value range for the gas of at least one gas pressure control arrangement 300 can be stored in memory unit 772, which memory unit 772 makes available to computing unit 770.

For example, a fifth interface 705 can be designed to forward sensor signals DS, representing a pressure, from a pressure sensor 334 of the corresponding gas pressure control arrangement 300 to the computing unit 770 . The arithmetic unit 770 is designed to evaluate the received sensor signals DS representing the pressure and to compare them with the corresponding stored gas pressure threshold value or gas pressure threshold value range, the arithmetic unit 770 if the sensor signals DS deviate from the gas pressure threshold value or from the gas pressure threshold value value range generates an error message and/or generates control signals which deactivate the corresponding gas pressure control system 300 and/or activate a corresponding reserve control arrangement.

For example, a sixth interface 706 can be designed to output control signals St generated by the computing unit 770 to a dehumidifying arrangement 400 .

For example, the computing unit 770 can be designed to generate the control signals St to the dehumidifying arrangement 300 or to the preheating arrangement 200 as a function of a gas quantity of the corresponding gas pressure regulating arrangement 300 . In the exemplary embodiment shown, at least two gas quantity threshold values are stored in the storage unit 772 . The arithmetic unit 770 selects the first gas quantity threshold for generating the control signals St for the coupling arrangement 240 and a second threshold for activating the dehumidifying arrangement 400 .

For example, the computing unit 770 can be designed to generate the control signals St for the dehumidifying arrangement 300 as a function of the temperatures of the low-pressure lines 330 that are present. The processing unit 770 is designed to assign the sensor signals TS received from the temperature sensors 332 to the corresponding gas pressure control arrangement 300 and to evaluate them. The arithmetic unit 770 compares the sensor signals TS of the gas pressure control arrangements 300 with one another, the arithmetic unit 770 being designed to generate control signals St which couple the dehumidification arrangement 400 to the low-pressure line 330 of the gas pressure control arrangement 300 which has the lowest temperature.

For example, a setpoint temperature value or a setpoint temperature value range for a component of the gas pressure control system 100 can be stored in the storage unit 740 . A seventh interface 707 is designed to forward the temperature of this component or the temperature in the region of this component to the processing unit 770 representing sensor signals TS. The computing unit 770 is designed to compare the received sensor signals TS with the target temperature value or the target temperature value range. The computing unit 770 is also designed to generate control signals St if the sensor signals TS deviate from the setpoint temperature value or the setpoint temperature value range.

An eighth interface 708 is designed to output these control signals St to at least one heating element 550 in the area of this component, with the control signals St being designed to adapt the heating output of the at least one heating element 550. This provides frost protection.

For example, a conductivity limit value for a processed condensate of the at least one heat generator 212 can be stored in memory unit 772 . A tenth interface 710 is designed to forward sensor signals LS, representing a conductivity of the processed condensate, from a test arrangement 530 to the computing unit 770 . The arithmetic unit 770 is designed to compare the received sensor signals LS with the conductivity limit value. Computing unit 770 is also designed, when the conductivity limit value is exceeded, to generate control signals St which deactivate preheating arrangement 200 and/or the at least one gas pressure regulating arrangement 300 and/or gas pressure regulating system 100 and/or open a valve to a condensate collecting arrangement. In an alternative embodiment, the condensate quality can also be determined using other methods. The arithmetic unit 770 can also generate control signals St, which cause the valve that directs condensate to the outside to close. In addition, the arithmetic logic unit 770 can generate control signals St, which enable a further processing element to be switched on.

For example, a filling quantity threshold value for at least one collection element of the condensate collection arrangement 500 can be stored in the storage unit 772 . An eleventh interface 711 is designed to forward sensor signals FS, representing a filling quantity of the corresponding collecting element, from a filling quantity measuring arrangement 560 to the computing unit 770. The arithmetic unit 770 is designed to compare the received sensor signals FS with the filling quantity threshold value. Arithmetic unit 770 is designed to generate control signals St that open a valve to a further collector element when the charge quantity threshold value is exceeded, or to generate control signals St that activate preheating arrangement 200 and/or the at least one gas pressure control arrangement when the collector elements are filled up to the charge quantity threshold value 300 and/or deactivate the gas pressure control system 100.

For example, at least one pressure threshold value or a pressure threshold value range for a heat transfer medium of preheating arrangement 200 can be stored in memory unit 772, which memory unit 772 makes available to computing unit 770. A twelfth interface 712 is designed to forward sensor signals DS, representing a pressure, from a pressure sensor 218 to the computing unit 770 . The arithmetic Unit 770 is designed to evaluate the received sensor signals DS representing the pressure and to compare them with the corresponding stored pressure threshold value or pressure threshold value range. If the sensor signals DS deviate from the pressure threshold value or from the pressure threshold value range, the arithmetic unit 770 generates an error message and/or generates control signals which deactivate the preheating arrangement 200 and/or at least one gas pressure control system 300 .

In the exemplary embodiment shown, a first power limit value for the heat generators 212 is stored in the storage unit 772 . The arithmetic unit 770 is designed to determine a total heat requirement of the gas pressure control system 100, which is made up of the heat requirement of the gas pressure control arrangements 300 and the heat requirement of the at least one heating element 108. The arithmetic unit 770 is designed to generate control signals St, which activate a heat generator 212 and operate it either until the heat requirement is covered or until the first power limit value is reached. The arithmetic unit 770 generates control signals St, which activate further heat generators 212 one after the other until the total heat requirement is covered or the heat generators 212 are activated up to the first output limit value. A ninth interface 709 is designed to output the control signals (St) to the corresponding heat generator 212 .

A second output limit value for the heat generators 212 is stored in the storage unit 772 . The arithmetic unit 770 is designed to generate control signals St, which activate the heat generators 212 one after the other up to the second power limit value, until the total heat requirement is covered or all heat generators 212 are activated up to the second power limit value.

In addition, the processing unit 770 in the exemplary embodiment shown is designed to determine the total running time of each heat generator 212 and, depending on the determined total running times of the heat generators 212, to create a sequence of activation and/or a sequence of power increase beyond the first power limit value. The heat generator 212 with the shortest total running time is activated first or its power is increased first above the first threshold value. The heat generator 212 with the longest total running time is activated last or its power is last to be increased above the first threshold value.

An anti-freeze temperature is stored in storage unit 772 , computing unit 770 being designed to determine a temperature in the area of heat generator 212 . If the frost protection temperature 772 in the area of the heat generator 212 is not reached, the arithmetic unit 770 is designed to generate control signals St which activate the heat generators 212, which are not activated to cover the total heat requirement, in a predetermined first time interval for a second time interval. The duration of the intervals is also stored in the memory unit 772.

Of course, not all of the parameters mentioned have to be monitored by the evaluation and control unit. In addition, other parameters that are not mentioned can be monitored via corresponding sensor arrangements and evaluation and control unit 700 .

The 4 until 6 show method steps of a method according to the invention for operating a gas pressure control system 100, wherein the gas pressure control system 100 comprises at least one gas pressure control arrangement 300 and at least one preheating arrangement 200. The at least one gas pressure control arrangement 300 can comprise at least one high-pressure line 310 that can be opened or closed with a valve 314, one low-pressure line 330, and one control arrangement 320 arranged between the high-pressure line 310 and the low-pressure line 330. The at least one preheating arrangement 200 can include at least one heat generator 212 and a number of heat exchangers 230 matched to the number of gas pressure regulating arrangements 300 .

The heat exchangers 230 are each assigned to one of the gas pressure control arrangements 300 and coupled to the corresponding high-pressure line 310 . The heat exchanger 230 can be coupled to the associated high-pressure line 310 and at least one of the heat generators 212 in order to release the preheating arrangement 200 for the corresponding gas pressure control arrangement 300 and to heat the gas present in the respective high-pressure line 310 .

How out 5 As can further be seen, in the method the high-pressure line 310 of the at least one gas pressure control arrangement 300 is coupled to at least one of the heat generators 212 via the corresponding heat exchanger 230 as a function of at least one parameter.

In this case, a first parameter can be the state of the valve 314 of the respective gas pressure control arrangement 300 .

In the exemplary embodiment shown, the state of the at least one valve 314 is determined in a method step S200.

In a method step S230, the high-pressure line 310 is decoupled from the at least one heat generator 212 when the respective valve 314 closes the high-pressure line 310 if it is coupled to the at least one heat generator 212 at this point in time.

In addition, the high-pressure line 310 is decoupled from a dehumidifying arrangement 400 in a method step S420 if it is coupled to the dehumidifying arrangement 400 at this point in time.

In a method step S300, the corresponding high-pressure line 310 is coupled to at least one of the heat generators 212 via the corresponding heat exchanger 230 when the respective valve 314 releases the high-pressure line 310 if it is decoupled from the respective heat exchanger at this point in time.

In an alternative embodiment of the method, a second parameter is additionally determined in a method step S210, which is a gas quantity flowing through the corresponding high-pressure line 310.

In a method step that is not shown, a first gas quantity threshold value is defined for each high-pressure line 310 .

In a method step S220, the gas quantity determined is compared with the first gas quantity threshold value.

If the gas quantity falls below the first threshold value, the corresponding high-pressure line 310 is decoupled from the at least one of the heat generators 212 in a method step S230.

In addition, the high-pressure line 310 is decoupled from a dehumidifying arrangement 400 in a method step S420 if it is coupled to the dehumidifying arrangement 400 at this point in time.

If the first gas quantity threshold value is exceeded, the corresponding high-pressure line 310 is coupled to at least one of the heat generators 212 via the corresponding heat exchanger 230 in a method step S300.

In a further alternative embodiment of the method, a second gas quantity threshold value is defined for each high-pressure line 310 in a method step that is not shown.

If the second gas quantity threshold value is exceeded, the corresponding high-pressure line 310 is coupled to a dehumidification arrangement 400 in a method step S410.

If the gas quantity falls below the second threshold value, the corresponding high-pressure line 310 is decoupled from the dehumidifying arrangement 400 in a method step S410.

In an alternative embodiment of the method, a dehumidification arrangement 400 can also be activated instead of being coupled to a high-pressure line 310 . In addition, instead of a gas quantity, a gas temperature can also be used as a decision parameter.

In a further alternative embodiment of the method, checking the valve state can be dispensed with if another parameter, for example the gas quantity, is checked.

The method can have further method steps. For example, two gas pressure control arrangements 300 can be assigned to a common gas network in one method step.

In a further method step, a first gas pressure control arrangement 300 can be selected as the operating control arrangement, which has a corresponding valve 314 in the releasing state.

In a further method step, a second gas pressure control arrangement 300 can be selected as a reserve control arrangement for the first gas pressure control arrangement 300, the second gas pressure control arrangement 300 having a corresponding valve 314 in the corresponding high-pressure line 310 closing state.

In a further method step, when a predetermined situation occurs, the valve 314 of the at least one first gas pressure control arrangement 300 is switched to the closed state and the valve of the second gas pressure control arrangement 300 is switched to the open state.

Here, the process steps from 5 be applied in order to release or form possible couplings between the corresponding high-pressure lines 310 and at least one heat generator 212 and/or the dehumidification arrangement 400 .

In 6 further method steps are shown with which the preheating arrangement 200 can be further adapted to the current situation.

In a method step S910, a minimum gas temperature threshold value or a minimum gas temperature threshold value range for at least one gas pressure control arrangement 300 is stored.

In a method step S920 it is checked whether a dew point temperature is determined.

If no dew point temperature is determined, the minimum gas temperature threshold value or the minimum gas temperature threshold value range is stored as the guest temperature threshold value in method step S930.

In a further method step S1000, a gas temperature of the corresponding gas pressure control arrangement 300 is determined. In addition, the determined gas temperature is compared with the stored gas temperature threshold value or the gas temperature threshold value range.

If the determined gas temperature deviates from the gas temperature threshold value or the gas temperature threshold value range, the heat supply to the preheating arrangement 200 via the heat exchanger is adjusted in method step S 1020 . Here, the heat supply can be increased or decreased.

If the determined gas temperature coincides with the gas temperature threshold value or the gas temperature threshold value range, the supply of heat to the preheating arrangement 200 is maintained in method step S 1010 .

In the exemplary embodiment shown, an alternative embodiment of the method is shown, it being determined in method step S920 that the dew point temperature is determined.

In a method step that is not shown, the dew point temperature in the interior 102 or the dew point temperatures in the interior spaces 102 in which the respective low-pressure lines 330 are arranged are determined.

In a method step S1100, the dew point temperature in the interior 102 or the dew point temperatures in the interiors 102 in which the respective low-pressure lines 330 are arranged are compared with the minimum gas temperature threshold value or the minimum gas temperature threshold value range.

If the determined dew point temperatures or, if the low-pressure lines are arranged in the same interior 102, the dew point temperature is greater than the minimum gas temperature threshold value or the minimum gas temperature threshold value range, then in a method step S1120 the dew point temperature or the corresponding dew point temperatures are stored as the gas temperature threshold value.

If the determined dew point temperatures or, if the low-pressure lines are arranged in the same interior 102, the dew point temperature is lower than the minimum gas temperature threshold value or the lower value of the minimum gas temperature threshold value range, then in a method step S1110 the minimum gas temperature threshold value or the minimum gas temperature threshold value range is stored as the gas temperature threshold value.

In a further method step S1000, a gas temperature of the corresponding gas pressure control arrangement 300 is determined. In addition, the determined gas temperature is compared with the stored gas temperature threshold value or the gas temperature threshold value range.

If the determined gas temperature deviates from the gas temperature threshold value or the gas temperature threshold value range, the supply of heat to the preheating arrangement 200 via the heat exchanger is adjusted in method step S1020. Here, the heat supply can be increased or decreased.

If the determined gas temperature coincides with the gas temperature threshold value or the gas temperature threshold value range, the supply of heat to the preheating arrangement 200 is maintained in method step S1010.

In a further method step, not shown, a gas pressure threshold value or a gas pressure threshold value range for the gas of at least one gas pressure control arrangement 300 is stored and/or a pressure threshold value or a pressure threshold value range for a heat transfer medium of at least one circuit of preheating arrangement 200 is specified. In a further method step, the pressure of the corresponding gas and/or the corresponding heat carrier is determined. In a further method step, the determined pressure value is compared with the corresponding gas pressure threshold value or gas pressure threshold value range and/or corresponding pressure threshold value or pressure threshold value range. If there is a discrepancy, an error message is generated in a further method step, and/or the preheating arrangement 200 and/or the corresponding gas pressure control arrangement 300 and/or the gas pressure control system 100 is deactivated.

In a further method step that is not shown, a target temperature and/or a target temperature range for a component of the gas pressure control system 100 is stored. In a further method step, the temperature of this component or in the region of this component is determined. In a further method step, the determined temperature is compared with the setpoint temperature and/or the setpoint temperature range. If the determined temperature deviates from the setpoint temperature and/or the setpoint temperature range, a further method step adjusts the heating output of at least one heating element 550 in the area of this component.

7 represents the process steps of a heating cascade.

A total heat requirement is determined in a method step S510. The total heat requirement is made up of the heat requirement of the gas pressure control arrangements 300 and the heat requirement of the at least one heating element 550 .

In a method step that is not shown, a first output limit value for the heat generators 212 is stored.

In method step S600 it is checked whether the total heat demand is covered.

If the total heat requirement is covered, the method ends in method step 700 .

If the total heat requirement is not covered, the method steps S610, S620, S630, S640 and S800 are carried out. In this case, a deactivated heat generator 212 is activated in method step S610. The heat output of the heat generator 212 is increased in method step S630 until a check in method step S640 determines that the first threshold value has been reached, or it is determined in method step S620 that the total heat requirement is covered.

Method steps S610, S620, S630, S640 are repeated with the available heat generators 212 until a check in S800 determines that all heat generators 212 are activated and operated up to the first threshold value.

In a method step that is not shown, a second output limit value for the heat generator 21 is stored.

If it is determined in method step S800 that the heat generators 212 are being operated up to the corresponding first power limit value, and if it is determined in method step 810 that the total heat requirement is not covered, then the heat generators 212 are operated one after the other in method steps S820, S830 up to the second power limit value.

In this case, in method step S820, the heat output of the activated heat generator is increased above the first threshold value. In method step S830 it is checked whether the second threshold value has been reached. These method steps are carried out until, in a method step S840, when checking whether all heat generators 212 are being operated up to the second power limit value, it is determined that all heat generators 212 are being operated up to the second threshold value. In that case, the method is ended in method step S700.

In an alternative method step that is not shown, it can then be checked whether the total heat requirement is still not covered. An error message can then be output in a method step that is not shown.

If, in method step S840, it is determined during a check as to whether all heat generators 212 are being operated up to the second power limit value that not all heat generators are being operated up to the second threshold value, then method steps S820 and S830 are carried out until it is determined in method step S810 that the total heat requirement is covered, whereupon the method is ended in method step S700.

In an alternative method step, not shown, the total running time of each heat generator 212 can be determined and the order of activation or the order of the power increase beyond the first power limit value can be made dependent on the total running time. The heat generator 212 with the shortest total running time can be activated first or its power can be the first to be increased above the first power limit value, and the heat generator 212 with the longest total running time can be activated last or its power can be the last to be increased above the first power limit value.

In an alternative method step, not shown, an anti-freeze temperature can be stored, whereby if the anti-freeze temperature in the area of the heat generator 212 is not reached, the heat generators 212 that do not contribute to covering the total heat requirement, in a predetermined first time interval can be activated for a second time interval.

In an alternative method step, not shown, the at least one heat generator 212 can be coupled to a condensate treatment arrangement 500, in particular with the condensate of the at least one heat generator being passed through at least one treatment element 520 and treated, and the treated condensate being discharged to an environment 600.

In an alternative method step that is not shown, the processed condensate can be checked by a testing arrangement 530, with a conductivity limit value being specified in particular. A conductivity of the treated condensate is determined and compared with the conductivity limit value. If the limit value is exceeded, the condensate is collected or routed to at least one further treatment element 520 . If the limit value is not reached, the condensate is discharged to the environment 600.

In an alternative method step that is not shown, at least one filling quantity threshold value can be stored for at least one collecting element and the filling quantity of at least one of the collecting elements can be determined. The determined filling quantities are compared with the corresponding filling quantity threshold value, and when the filling quantity threshold value is reached, the condensate is routed to another collection element or, if the existing collection elements are filled up to the corresponding filling quantity threshold value, an error message is output. Alternatively, the preheating arrangement 200 and/or at least one of the gas pressure control arrangements 300 and/or the gas control system 100 can be deactivated.

A computer program product, not shown, may include commands which, when executed by a computer 210, cause the latter to carry out a described method, in particular automatically, with a high-pressure line 310 of at least one gas pressure control arrangement 300 depending on at least one parameter via a corresponding heat exchanger 230 having at least a heat generator 212 is coupled. For example, the central evaluation and control 700 can work with the computer program product.

reference list

100

gas pressure control system

102

inner space

104

temperature sensor

106

humidity sensor

108

sensor arrangement

200

preheating arrangement

202

temperature sensor

210

first cycle

212

heat generator

214

Emergency stop switch for heating

216

Hydraulic separator (alternative heat exchanger)

218

pressure sensor

220

second cycle

221

inflow

222

reflux

230

heat exchanger

240

coupling arrangement

242

Valve

244

pump

246

three-way valve

247

inflow

248

reflux

300

gas pressure control arrangement

310

high pressure line

312

gas measurement arrangement

313

sensor

314

safety shut-off valve

320

control arrangement

330

low pressure line

332

temperature sensor

400

dehumidification arrangement

410

Management

412

Valve

414

pump

420

Coupling area with ventilation arrangement

430

Coupling area with low pressure pipe

500

condensate treatment arrangement

510

condensate pump

512

overflow

514

condensate replacement pump

520

editing element

530

examination arrangement

540

outlet

550

heating element/heat exchanger

560

filling quantity measuring arrangement

600

Vicinity

700

Evaluation and control unit

701

first interface

702

second interface

720

second interface

703

third interface

732

third interface

704

fourth interface

705

fifth interface

706

sixth interface

707

seventh interface

708

eighth interface

709

ninth interface

710

tenth interface

711

eleventh interface

712

twelfth interface

770

unit of account

772

storage unit

774

input unit

se

sensor signal

TS

temperature signal

DS

pressure signal

SD

sensor data

FS

filling signal

LS

conductivity signal

st

control signal

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102004063841 B4 [0005]
• US20120192580A1 [0006]
• EP 1865249 B1 [0007]

Claims (40)

Gas pressure control system (100) with at least one gas pressure control arrangement (300), at least one preheating arrangement (200) and at least one evaluation and control unit (700), the at least one gas pressure control arrangement (300) each having at least one high-pressure line that can be opened or closed with a valve (314). (310), a low-pressure line (330) and a control arrangement (320) arranged between the high-pressure line (310) and the low-pressure line (330), the preheating arrangement (200) comprising at least one heat generator (212) and at least one of the number of gas pressure control arrangements (300) includes an adapted number of heat exchangers (230), the heat exchangers (230) each being assigned to one of the gas pressure control arrangements (300) and coupled to the corresponding high-pressure line (310), the at least one evaluation and control unit (700) corresponding to the respective heat exchanger (230) to release the preheating arrangement (200) for the corresponding gas pressure feedback control arrangement (300) and for heating the gas present in the respective high-pressure line (310) with the high-pressure line (310) assigned to it and at least one of the heat generators (212), characterized in that the at least one evaluation and control unit (700) is required the high-pressure line (310) of the at least one gas pressure control arrangement (300) is coupled to at least one of the heat generators (212) via the corresponding heat exchanger (230) as a function of at least one parameter. gas pressure control system claim 1 , characterized in that the parameters include at least one of at least two parameters (i) a state of the valve (314) of the respective gas pressure control arrangement (300), in particular wherein a sensor unit (313) monitors the state of the at least one valve (314) and the at least one evaluation and control unit (700) couples the corresponding high-pressure line (310) to at least one of the heat generators (212) via the corresponding heat exchanger (230) when the high-pressure line (310) is in a state releasing the high-pressure line (310), and the at least one evaluation and control unit (700) decouples the high-pressure line (310) from the at least one heat generator (212) when the high-pressure line (310) is in a closing state; (ii) a gas quantity flowing through the corresponding high-pressure line (310), in particular a first gas quantity threshold value being stored for each high-pressure line (310) in a storage unit (772) and a gas measuring arrangement (312) determining the gas quantity flowing through the high-pressure line (310), wherein the at least one evaluation and control unit (700) couples the corresponding high-pressure line (310) via the corresponding heat exchanger (230) to at least one of the heat generators (212) when the first gas quantity threshold value is exceeded. Gas pressure control system according to one of the preceding claims, characterized in that at least two gas pressure control arrangements (300) are assigned to a common gas network, a first gas pressure control arrangement (300) being selected as the operating control arrangement, which has a corresponding valve (314) in the releasing state, and a second Gas pressure control arrangement (300) is selected as a reserve control arrangement for the first gas pressure control arrangement (300), the second gas pressure control arrangement (300) having a corresponding valve (314) in the corresponding high-pressure line (310) closing state, in particular the valve ( 314) of the at least one first gas pressure control arrangement (300) can be converted into the closed state and the valve of the second gas pressure control arrangement (300) can be converted into the open state. Gas pressure control system according to one of the preceding claims, characterized in that a gas temperature threshold value or a gas temperature threshold value range for at least one gas pressure control arrangement (300) is stored in the storage unit (772) and a temperature sensor (332) determines a gas temperature of the corresponding gas pressure control arrangement (300), the at least an evaluation and control unit (700) compares the determined gas temperature with the stored gas temperature threshold value or the gas temperature threshold value and, if the determined gas temperature deviates from the gas temperature threshold value or the gas temperature threshold value range, adjusts the heat supply of the preheating arrangement (200) via the heat exchanger. gas pressure control system claim 4 , characterized in that a sensor arrangement (108) determines a dew point temperature in the interior, in which at least one gas pressure control arrangement (300) is arranged, and stores the determined dew point temperature as a gas temperature threshold value for the corresponding at least one gas pressure control arrangement (300) in the storage unit (772). Gas pressure control system according to one of the preceding claims, characterized in that a gas pressure threshold value or a gas pressure threshold value range for the gas of at least one gas pressure control arrangement (300) is stored in the memory unit (772) and/or that a pressure threshold value or a pressure threshold value range for a heat transfer medium of at least one circuit of the preheating arrangement (200) is stored in the memory unit (772), with a pressure sensor arrangement (218) determining the pressure of the corresponding gas and/or the corresponding heat transfer medium, in particular with the at least one evaluation and control unit (700) comparing the determined value of the pressure with the corresponding gas pressure threshold value or gas pressure threshold value range and/or the corresponding pressure threshold value or pressure threshold value range and if the determined pressure deviates from the corresponding gas pressure threshold value or gas pressure threshold value range and/or the corresponding an error message is generated at the end of the pressure threshold or pressure threshold range, and/or the preheating arrangement (200) and/or the corresponding gas pressure control arrangement (300) and/or the gas pressure control system (100) is deactivated. Gas pressure control system according to one of the preceding claims, characterized in that the at least one evaluation and control unit (700) is designed to activate a dehumidification arrangement (400) or to couple the dehumidification arrangement (400) to the at least one gas pressure control arrangement (300). gas pressure control system claim 7 characterized in that a second gas quantity threshold value for at least one of the gas pressure control arrangements (300) is stored in the storage unit (772), the at least one evaluation and control unit (700) activating the dehumidification arrangement (400) if for at least one of the gas pressure control arrangements (300 ) the determined gas quantity is greater than the corresponding second gas quantity threshold value, or wherein the at least one evaluation and control unit (700) connects the at least one gas pressure control arrangement (300), in which the determined gas quantity is greater than the corresponding second gas quantity threshold value, to the dehumidification arrangement (400 ) couples. gas pressure control system claim 7 or 8th characterized in that the at least one evaluation and control unit (700) of at least one gas pressure control arrangement (300) determines the gas temperature of the low-pressure line (330), the at least one evaluation and control unit (700) determining the low-pressure line (330) with the lowest gas temperature coupled to the dehumidification assembly (400). Gas pressure control system according to one of the preceding claims, characterized in that a target temperature and/or a target temperature range for a component of the gas pressure control system (100) is stored in the storage unit (772) and a temperature sensor (104) determines the temperature of this component or in the area of this component , wherein the at least one evaluation and control unit (700) compares the determined temperature with the target temperature and/or the target temperature range and, if the determined temperature deviates from the target temperature and/or the target temperature range, a heating output of at least one heating element (550) in the area of this component adjusts. Gas pressure control system according to one of the preceding claims, characterized in that in the case of a gas pressure control system (100) with a plurality of heat generators (212), a first power limit value for the heat generators (212) is stored in the memory unit (772) and the at least one evaluation and control unit (700 ) determines a total heat requirement of the gas pressure control system (100), which is made up of the heat requirement of the gas pressure control arrangements (300) and the heat requirement of the at least one heating element (550), the at least one evaluation and control unit (700) being designed for this purpose as long as the heat generator ( 212) to switch on and to operate up to the corresponding first power limit until the total heat requirement is covered or all heat generators (212) are operated up to the first power limit. gas pressure control system claim 11 characterized in that a second output limit value for the heat generator (212) is stored in the memory unit (772), with the at least one evaluation and control unit if the total heat requirement is not covered and when the heat generator (212) is operated up to the corresponding first output limit value (700) operates the heat generators (212) one after the other up to the second power limit value until the total heat requirement is covered or all heat generators (212) are operated up to the second power limit value. gas pressure control system claim 11 or 12 , characterized in that the at least one evaluation and control unit (700) is designed to determine the total running time of each heat generator (212) and a sequence for the activation of the heat generators or a sequence of the heat generators (212) for the increase in output over the first performance limit value as a function of the running time, in particular is designed to enable the at least one evaluation and control unit (700) to be the first to activate the heat generator (212) with the shortest total running time or to be the first to increase its output beyond the first output limit value and the at least one evaluation and control unit (700) to activate the heat generator (212) with the greatest total running time last or to increase its power last beyond the first power limit value. Gas pressure control system according to one of Claims 11 until 13 , characterized in that an antifreeze temperature is stored in the memory unit (772), with a temperature sensor (104) determining the temperature in the area of the heat generator (212), and the at least one evaluation and control unit (700) is designed to measure the antifreeze temperature to compare with the determined temperature and to activate the heating elements (212), which do not contribute to covering the total heat requirement, in a predetermined first time interval for a second time interval when the antifreeze temperature is undershot. Gas pressure control system according to one of the preceding claims, characterized in that the at least one heat generator (212) is coupled to a condensate processing arrangement (500), in particular wherein at least one processing element (520) is designed to process the condensate of the at least one heat generator (212) and release the treated condensate to an environment. gas pressure control system claim 15 , characterized in that a test arrangement (530) to check the treated condensate, a collection arrangement for collecting the condensate and a processing element (520) for processing the condensate is provided, support wherein in particular a conductivity limit value is stored, in particular wherein the test arrangement ( 530) is designed to determine a conductivity of the treated condensate and to compare it with the conductivity limit value, with a collection arrangement collecting the condensate if the conductivity limit value is exceeded or at least one further treatment element (520) treating the condensate, with an outlet (540) at one Falling below the conductivity limit to the environment (600). Evaluation and control unit (700) for a gas pressure regulation system (100) which comprises a number of interfaces (701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712), at least two of the interfaces ( 701, 702) are assigned to a gas pressure control arrangement (300), with at least one first interface (701) being designed to receive at least one sensor signal (Se) from a sensor unit (313, 314) of this gas pressure control arrangement (300) and to send it to at least one computing unit for evaluation (770), wherein the at least one computing unit (770) is designed to assign the received sensor signals (Se) to the respective gas pressure control arrangement (300) and to compare the sensor signals (Se) with at least one corresponding threshold value and, depending on the comparison, at least one corresponding one of the Gas pressure control arrangement (300) associated control signal (St) to generate, wherein at least one second interface (702) is designed the at least one Ste external signal (St), which is assigned to this gas pressure control arrangement (300), to a coupling arrangement (240) of a preheating arrangement (200) assigned to this gas pressure control arrangement (300), the coupling arrangement (240) depending on the at least one control signal (St) the the corresponding high-pressure line (310) with at least one heat generator (212) of the preheating arrangement (200) coupled or the corresponding high-pressure line (310) and the at least one heat generator (212) decoupled from each other. Evaluation and control unit (700) after Claim 17 , wherein at least one memory unit (772) is designed to store threshold values and/or threshold value ranges for sensor signals (Se, Se, TS, DS, SD, FS, LS) representing parameters and to make them available to the at least one computing unit (770). . Evaluation and control unit (700) after Claim 17 or 18 , wherein an input unit (774) is designed to enable the input and storage of threshold values and/or threshold value ranges, in particular wherein, in the case of at least two gas pressure control arrangements (300) assigned to a common gas network, a first gas pressure control arrangement (300) is designated as the operating control arrangement and a designation of a to enable the second gas pressure control arrangement (300) as a reserve control arrangement. Evaluation and control unit (700) according to one of claims 17 until 19 , wherein at least one further interface (703, 704, 705, 707, 710, 711, 712) is provided to receive sensor signals (TS, DS, SD, FS, LS) representing parameters of at least one sensor unit monitoring the corresponding parameter and to the Forward processing unit (770), wherein in at least one of the memory units (772). corresponding threshold value or threshold value range is stored, which the at least one memory unit (772) makes available to the computing unit (770), in particular wherein the computing unit (770) is designed to evaluate the received sensor signals and to compare them with the corresponding stored threshold value or threshold value range, wherein the computing unit (770) is designed to generate at least one control signal (St) if the evaluated sensor signals of the corresponding sensor unit deviate from the corresponding threshold value or the corresponding threshold value range, with at least one further interface (702, 706, 708, 709) being designed to output the generated control signals (St) to an arrangement regulating the corresponding parameter and/or to an arrangement whose state depends on the parameter. Evaluation and control unit (700) claim 20 , wherein the control signals (St) are designed to adapt the corresponding parameter and/or to output an error message and/or to deactivate or activate at least one gas pressure control arrangement (300) and/or to deactivate or activate at least one preheating arrangement (200) and/or or to deactivate or activate at least one dehumidification arrangement (400) and/or to deactivate or activate a condensate treatment arrangement (500) and/or to deactivate the gas pressure control system. Evaluation and control unit (700) according to one of claims 17 until 21 , a first output limit value for the heat generator (212) being stored in the memory unit (772), the computing unit (770) being designed to determine a total heat requirement of the gas pressure control system (100), which is derived from the heat requirement of the gas pressure control arrangements (300) and the heat requirement of the at least one heating element (108), the processing unit (770) being designed to generate control signals (St) which activate a heat generator (212) and operate it either until the heat requirement is covered or up to the first power limit value, the processing unit (770) generates control signals (St) which successively activate further heat generators (212) until the total heat requirement is covered or the heat generators (212) are activated up to the first power limit value. Evaluation and control unit (700) after Claim 22 , wherein the computing unit (770) is designed to determine the total running time of each heat generator (212) and, depending on the determined total running times of the heat generators (212), to create a sequence of activation and/or a sequence of power increase beyond the first power limit value, wherein the The heat generator (212) with the shortest total running time is activated first or whose output is the first to be increased above the first threshold value and the heat generator (212) with the longest total running time is activated last or is the last to be increased above the first threshold value. Method for operating a gas pressure control system (100) with at least one gas pressure control arrangement (300) and at least one preheating arrangement (200), the at least one gas pressure control arrangement (300) having at least one high-pressure line (310) that can be opened or closed with a valve (314), a low-pressure line (330) and a control arrangement (320) arranged between the high-pressure line (310) and the low-pressure line (330), the at least one preheating arrangement (200) having at least one heat generator (212) and a number adapted to the number of gas pressure control arrangements (300). Heat exchanger (230), wherein the heat exchangers (230) are each assigned to one of the gas pressure control arrangements (300) and are coupled to the corresponding high-pressure line (310), the heat exchanger (230) for releasing the preheating arrangement (200) for the corresponding gas pressure control arrangement (300 ) and for heating the in the respective high-pressure line (31 0) existing gas is coupled to the high-pressure line (310) assigned to it and at least one of the heat generators (212), characterized in that the high-pressure line (310) of the at least one gas pressure control arrangement (300) is connected via the corresponding heat exchanger ( 230) is coupled to at least one of the heat generators (212). procedure after Claim 24 , characterized in that a first parameter is the state of the valve (314) of the respective gas pressure control arrangement (300), the state of the at least one valve (314) and the corresponding high-pressure line (310) being determined, in which case the high-pressure line (310) releasing state of the respective valve (314), coupled via the corresponding heat exchanger (230) to at least one of the heat generators (212), and the high-pressure line (310) in a high-pressure line (310) closing state of the respective valve (314) from the at least one heat generator (212) is decoupled. procedure after Claim 24 or 25 , characterized in that a second parameter is a through the corresponding high-pressure line (310) flowing amount of gas, wherein for each high-pressure line (310), a first gas quantity threshold value is defined and the gas quantity flowing through the high-pressure line (310) is determined, with the corresponding high-pressure line (310) being connected to at least one of the heat generators (212 ) is paired. Procedure according to one of claims 24 until 26 , characterized in that at least two gas pressure control arrangements (300) are assigned to a common gas network, a first gas pressure control arrangement (300) being selected as the operating control arrangement, which has a corresponding valve (314) in the releasing state, and a second gas pressure control arrangement (300) as a reserve control arrangement for the first gas pressure control arrangement (300), the second gas pressure control arrangement (300) having a corresponding valve (314) in the corresponding high-pressure line (310) closing state, wherein when a predetermined situation occurs, the valve (314) of the at least one first gas pressure control arrangement (300) is transferred to the closed state and the valve of the second gas pressure control arrangement (300) is transferred to the open state. Procedure according to one of claims 24 until 27 , characterized in that a gas temperature threshold value or a gas temperature threshold value range is stored for at least one gas pressure control arrangement (300) and a gas temperature of the corresponding gas pressure control arrangement (300) is determined, the gas temperature determined being compared with the stored gas temperature threshold value or the gas temperature threshold value range, and if there is a deviation in the determined gas temperature from the gas temperature threshold value or the gas temperature threshold value range, the supply of heat to the preheating arrangement (200) is adjusted via the heat exchanger. procedure after claim 28 characterized in that a dew point temperature is determined in the interior in which at least one gas pressure control arrangement (300) is arranged, and the determined dew point temperature is stored as a gas temperature threshold value for the corresponding at least one gas pressure control arrangement (300), in particular with a minimum gas temperature threshold value being specified, the Minimum gas temperature threshold value is stored as a gas temperature threshold value for the corresponding gas pressure control arrangement (300) if the minimum gas temperature threshold value is greater than the corresponding dew point temperature determined, and the dew point temperature determined is stored as a gas temperature threshold value for the corresponding gas pressure control arrangement (300) if the dew point temperature determined is greater than the minimum gas temperature threshold value . Procedure according to one of claims 24 until 29 , characterized in that a gas pressure threshold value or a gas pressure threshold value range for the gas is stored in at least one gas pressure control arrangement (300) and/or that a pressure threshold value or a pressure threshold value range for a heat transfer medium of at least one circuit of the preheating arrangement (200) is specified and the pressure of the corresponding gas and/or of the corresponding heat transfer medium is determined, the determined value of the pressure being compared with the corresponding gas pressure threshold value or gas pressure threshold value range and/or corresponding pressure threshold value or pressure threshold value range and an error message being generated in the event of a deviation, and/or the preheating arrangement (200) and/or the corresponding gas pressure control arrangement (300) and/or the gas pressure control system (100) is deactivated. Procedure according to one of claims 24 until 30 , characterized in that a dehumidification arrangement (400) is activated or coupled to the at least one gas pressure control arrangement (300). Procedure according to one of claims 24 until 31 , characterized in that a target temperature and/or a target temperature range for a component of the gas pressure control system (100) is stored and the temperature of this component or in the area of this component is determined, the temperature determined being compared with the target temperature and/or the target temperature range and if the determined temperature deviates from the setpoint temperature and/or the setpoint temperature range, a heating output of at least one heating element (550) in the area of this component is adjusted. Procedure according to one of claims 24 until 32 , characterized in that in the case of a gas pressure control system (100) with a plurality of heat generators (212), a first power limit value is stored for the heat generators (212) and a total heat requirement of the gas pressure control system (100) is determined, which results from the heat requirement of the gas pressure control arrangements (300) and the heat requirement of the at least one heating element (550), heat generators (212) being switched on and operated up to the corresponding first power limit value until the total heat requirement is covered or all heat generators (212) are operated up to the first power limit value. procedure after Claim 33 characterized in that a second output limit value for the heat generators (212) is stored, with insufficient coverage of the total heat requirement and when the heat generators (212) are operated up to the corresponding first output limit value, the heat generators (212) are operated one after the other up to the second output limit value, until the total heat requirement is covered or all heat generators (212) are operated up to the second output limit value. procedure after Claim 33 or 34 , characterized in that the total running time of each heat generator (212) is determined and the sequence of activation or the sequence of the power increase beyond the first power limit value depends on the total running time, with the heat generator (212) with the shortest total running time being activated first or whose power is the first to be increased above the first power limit and the heat generator (212) with the greatest total running time is the last to be activated or whose power is the last to be increased above the first power limit. Procedure according to one of Claims 33 until 35 , characterized in that an anti-freeze temperature is stored, wherein if the anti-freeze temperature in the area of the heat generator (212) is not reached, the heat generators (212) that do not contribute to covering the total heat requirement are activated in a predetermined first time interval for a second time interval. Procedure according to one of claims 24 until 36 , characterized in that the at least one heat generator (212) is coupled to a condensate processing arrangement (500), in particular the condensate of the at least one heat generator being routed and processed through at least one processing element (520) and the processed condensate being discharged to an environment. procedure after Claim 37 , characterized in that the processed condensate is checked by a testing arrangement (530), in which case a conductivity limit value is specified in particular, with the conductivity of the processed condensate being determined in particular and compared with the conductivity limit value, with the condensate being collected or at least one further processing element (520) and is discharged to the environment when the limit value is undershot. procedure after Claim 37 or 38 , characterized in that at least one filling quantity threshold value is stored for at least one collecting element and the filling quantity of at least one of the collecting elements is determined, the determined filling quantity being compared with the corresponding filling quantity threshold value and when the filling quantity threshold value is reached the condensate is routed into a further collecting element or if the existing collection elements are filled up to the corresponding filling quantity threshold value, an error message is output and/or the preheating arrangement (200) and/or at least one of the gas pressure control arrangements (300) and/or the gas control system (100) are deactivated. A computer program product comprising instructions which, when executed by a computer, cause the latter to carry out a method according to any one of claims 24 until 39 Execute, in particular automatically, wherein a high-pressure line (310) of at least one gas pressure control arrangement (300) depending on at least one parameter via a corresponding heat exchanger (230) with at least one heat generator (212) is coupled.

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