EP3260783A1 - Method for determining the operational data of a gas heating device, gas heating device and computer program product - Google Patents

Abstract

Method for determining operating data of a gas heating device (100), comprising the steps: - Providing defined control data (S1 ... S3) of the gas heating device (100) concerning a burning process for a computer device (50); - Providing defined control data (S4 ... S9) of the gas heating device (100) concerning a water treatment for the computer device (50); and - Determining the operating data of the gas heater (100) from the control data (S1 ... S9) by means of the computer device (50) during operation of the gas heater (100).

Description

The invention relates to a method for determining operating data of a gas heating device. The invention further relates to a gas heating device.

State of the art

Thermostat devices are known which allow a consumer to set a room temperature of one or more rooms heated by a gas heater. The said thermostatic devices may be e.g. show the following parameters: hot water operation of a boiler, heating operation of the boiler, roughly estimated boiler gas consumption per unit time derived from one operating point of the gas heater, etc. Newer systems also allow wireless communication (eg via WiFi) with a portable terminal (eg smartphone) , Tablet, etc.) to view the mentioned parameters.

Disclosure of the invention

It is an object of the present invention to provide an improved method for determining operating data of a gas heater.

• Bereitstellen von definierten Steuerungsdaten der Gasheizvorrichtung betreffend einen Brennvorgang für eine Rechnereinrichtung;
• Bereitstellen von definierten Steuerungsdaten der Gasheizvorrichtung betreffend eine Wasseraufbereitung für die Rechnereinrichtung; und
• Ermitteln der Betriebsdaten der Gasheizvorrichtung aus den Steuerungsdaten mittels der Rechnereinrichtung während eines Betriebs der Gasheizvorrichtung.

The object is achieved according to a first aspect with a method for determining operating data of a gas heating device, comprising the steps:

• Providing defined control data of the gas heating device concerning a burning process for a computer device;
• Providing defined control data of the gas heating device relating to a water treatment for the computer device; and
• Determining the operating data of the gas heater from the control data by means of the computer device during operation of the gas heater.

According to a second aspect, the object is achieved with a gas heating device, wherein the gas heating device is designed to determine operating data of the gas heating device from control data relating to a burning process of the gas heating device and control data relating to hot water preparation of the gas heating device.

In this way, advantageously known control data of the gas heating device are used to determine operating data of the gas heating device. As a result, existing data, which are used to determine operating data of the gas heater, are accessed with a small additional outlay. An end user or gas heating engineer may usefully use the process to improve the operation of the gas heating apparatus. As a result, a customer can be notified of an operation of the gas heater in terms of economy.

Preferred embodiments of the method according to the invention are the subject of dependent claims.

An advantageous development of the method provides that the following data are used as control data of the firing process of the gas heating device: rotational speed of a fan device, opening degree of a gas supply device, ionization current of a burner device.

In this way, accurately known combustion circumstances can advantageously be detected and used for determining the operating data of the gas heating device.

A further advantageous development of the method provides that a flow rate of the heating water, a flow temperature of the heating water and a return temperature of the heating water are used as control data relating to a Heizwasseraufbereitung the gas heater.

In this way, already known control data of the gas heating device regarding heating water treatment are advantageously used with little effort for the determination of the operating data of the gas heating device.

A further advantageous development of the method is characterized in that a flow rate of the service water, an inlet temperature of the service water and an outlet temperature of the service water are used as control data concerning a process water treatment of the gas heating.

As a result, already known control data of the gas heating device with regard to process water treatment are advantageously used with little effort for the determination of the operating data.

A further advantageous development of the method is characterized in that a gas consumption of the gas heating device during operation of the gas heating device is determined by means of the computer device.

This makes it possible to provide an intermediate result for determining an efficiency of the gas heating device. If necessary, this intermediate result can be output for information.

A further advantageous development of the method provides that, by means of the computer device, a power of the gas heating device relating to the heating water treatment and a power of the gas heating device relating to the process water treatment are determined. In this way, intermediate results for the determination of efficiencies of the gas heater are provided, which can be output when needed.

A further advantageous development of the method provides that the determination of the operating data of the gas heating device is carried out by means of a computer device arranged in a control device of the gas heating device.

As a result, the determination of the operating data can be carried out centrally, whereby only a small additional effort is required.

A further advantageous development of the method provides that the control data is transmitted to an external device, wherein the determination of the operating data is performed by means of a computer device arranged in the external device. In this way, it is advantageously supported that the calculation of the operating data from the gas heating device can be outsourced to an external device, for example in the form of a smartphone, tablet, laptop, etc. A computational load of the computer device of the control device can be reduced in this way.

The invention will be described in detail below with further features and advantages with reference to three figures. All described or illustrated features, alone or in any combination form the subject matter of the invention, regardless of their summary in the claims or their dependency, as well as regardless of their formulation or representation in the description or in the figures. The figures are primarily intended to illustrate the principles essential to the invention.

Disclosed method features are analogous to corresponding disclosed device features and vice versa. This means, in particular, that features, technical advantages and embodiments relating to the method for determining operating data of a gas heating device result analogously from corresponding designs, features and advantages relating to the gas heating device and vice versa.

Fig. 1

ein prinzipielles Blockschaltbild einer Gasheizvorrichtung, bei der das Verfahren zur Ermittlung von Betriebsdaten verwendet wird;

Fig. 2

eine prinzipiellen Darstellung einer Wirkungsweise des vorgeschlagenen Verfahrens; und

Fig. 3

einen prinzipiellen Ablauf einer Ausführungsform des vorgeschlagenen Verfahrens.

In the figures shows:

Fig. 1

a schematic block diagram of a gas heater, in which the method is used to determine operating data;

Fig. 2

a schematic representation of an operation of the proposed method; and

Fig. 3

a basic sequence of an embodiment of the proposed method.

Description of exemplary embodiments

A central idea of the invention is that known control signals or parameters of a gas heating device are used to calculate operating data of the gas heater. These may, for example, be provided to a user or a heating system installer, thereby taking appropriate steps to design the gas heating apparatus with improved efficiency.

It is known that different gas qualities or types are used in different regions. For example, in Germany so-called L gas (low calorific gas), E gas (high calorific gas) and P gas (propane gas) are in use, each having different energy values. A degree of fluctuation in the energy value can be up to ± 30%. In conventional gas heaters, a calorific value is set only once, resulting in non-optimal operating conditions for the gas heaters.

Fig. 1 shows very simplified a control principle of a gas heater 100 known per se, is controlled in the firing of a gas-air mixture and in which the proposed method can be used. One recognizes a gas heating device 100 with a burner device 10 with an ionization sensor 11, a blower device 20 for supplying air and a gas supply device 30 ("gas fitting") for supplying gas. By means of the gas supply device 30, an amount of the supplied gas can be adjusted electronically controlled. By means of the blower device 20 air is supplied, wherein a resulting air-gas mixture is burned by means of the burner device 10 in a combustion process.

In response to supplied control signals S1, S2, S3, the rotational speed of the blower device 20 and an opening rate of the gas supply device 30 are controlled, thereby controlling a gas-air ratio as a result. The ionization sensor 11 acts as a sensor for the ionization flow of the combustion flame, the fan device 20 and the gas supply device 30 act as actuators.

It is proposed to use the control signals S1, S2, S3 used within the gas heating device 100 for determining operating data.

For this purpose, it is provided that the first control signal S1 in the form of an ionization signal or a strength of an ionization current (for example in μA), which represents a measure of a gas / air ratio during the combustion process, is provided to a computer device 50 of the control device 40. Further, the computer device 50 is provided with the second control signal S2 in the form of a speed of the blower 20 (e.g., in rpm) and the third control signal S3 in the form of an opening rate of the electronically adjustable gas feeder 30 (e.g., in%).

Alternatively, instead of the ionization signal, the computer device 50 can also be supplied with data of a gas-air ratio and data of a gas type (not shown).

It is provided that said control signals S1 ... S3 together with other already existing control signals S4 ... S9 (not shown in FIG Fig. 1 ) of the gas heater 100 for calculating operation data of the gas heater 100 by the computer 50.

This is preferably carried out by means of a computer device 50, which is arranged in the control device 40 ("burner automat") and which is used e.g. can be designed as a microprocessor. Alternatively, it is also possible to transmit said control signals by means of a transmission device (not shown) to an external, preferably portable device (for example a tablet, smartphone, laptop, etc.) which carries out the determination of the operating data of the gas heating device 100. In this way, a high flexibility with regard to the determination or calculation of the operating data is supported.

Alternatively, for example, it is also conceivable to transmit the said control data S1... S9 to a central computer network (not shown), the calculation of said operating data being carried out centrally and the operating data to a portable device via a wireless communication network be transmitted.

It is conceivable that the determined operating data are output in numbers and / or graphically by means of symbols and / or at least partially voice-based on a man-machine interface.

To explain the determination of the operating data shows Fig. 2 a general overview diagram of an operation of the proposed method. The figure represents a calculation flow or algorithms for calculating the operating data of the gas heater 100.

A first functional block 200, the above-mentioned three control signals S1 ... S3 of the gas heater 100 are supplied. In function block 200, a determination of a gas heating capacity L of the gas heating device 100 takes place, for example by means of a look-up table (not shown) or an algorithm or a multidimensional diagram (not shown).

Another function block 210 is a fourth control signal S4, which represents a flow of heating water per unit time (eg liters per hour, liters per minute, liters per second) by a heating pump (not shown) of the gas heater 100, a fifth control signal S5, which Supply temperature (eg in ° C) of the heating water of the gas heater 100 and a sixth control signal S6, which represents a return temperature (eg in ° C) of the heating water of the gas heater 100, respectively.

P1

Leistung der Gasheizvorrichtung betreffend Heizwasseraufbereitung

c_w

spezifische Wärmekapazität von Wasser [J/kg x K]

As a result, by means of the functional block 210, a power P1 of the gas heater 100 relating to heating water is determined according to the following formula: $$\mathrm{<figure-callout\; id="1"\; label="P"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">P</figure-callout>}\mathrm{1}=\mathrm{<figure-callout\; id="4"\; label="S"\; filenames="imgf0002.png"\; state="\{\{state\}\}">S</figure-callout>}\mathrm{4}\times {\mathrm{c}}_{\mathrm{w}}\mathrm{X}\left(\mathrm{S}\mathrm{5}-\mathrm{S}\mathrm{6}\right)$$

P1

Performance of the gas heater regarding heating water treatment

c _w

specific heat capacity of water [J / kg x K]

L

zugeführte Gasenergie

A1

Wirkungsgrad der Gasheizvorrichtung betreffend Heizbetrieb

The power P1, like the gas heating power L of the function block 200, is supplied to a function block 230 which performs the following division: $$\mathrm{A}\mathrm{1}=\mathrm{<figure-callout\; id="1"\; label="P"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">P</figure-callout>}\mathrm{1}/\mathrm{L}$$

L

supplied gas energy

A1

Efficiency of the gas heater for heating operation

In this way, as a result, an efficiency is determined which represents an efficiency A1 of the gas heater 100 relating to heating operation.

A functional block 220 is also provided, which represents a determination of operating data of the gas heating device 100 regarding process water treatment. The functional block 220 is supplied with a seventh control signal S7, which represents a flow of service water per unit time (eg 1 / m), an eighth control signal S8, which represents an inlet temperature (eg in ° C) of the service water and a ninth operating signal S9, which represents an outlet or outlet temperature (eg in ° C) of the process water supplied.

c_w

spezifische Wärmekapazität von Wasser [J/kg x K]

P2

Leistung der Gasheizvorrichtung betreffend Brauchwasseraufbereitung

There is a determination or calculation of a power P2 of the gas heater 100 regarding process water treatment according to the following formula: $$\mathrm{P}\mathrm{2}=\mathrm{S}\mathrm{7}\times {\mathrm{c}}_{\mathrm{w}}\mathrm{X}\left(\mathrm{S}\mathrm{9}-\mathrm{S}\mathrm{8th}\right)$$

c _w

specific heat capacity of water [J / kg x K]

P2

Performance of the gas heater regarding process water treatment

It goes without saying that all of the aforementioned units are merely exemplary and all said control signals can also be processed in non-SI units.

A function block 240, the power P2 of the gas heater 100 regarding process water treatment and the gas heating power L of function block 200 are supplied.

A2

Wirkungsgrad der Gasheizvorrichtung betreffend Brauchwasseraufbereitung

By means of the function block 240, an efficiency A2 of the gas heating device 100 regarding process water treatment is calculated according to the following formula: $$\mathrm{A}2=\mathrm{P}2/\mathrm{L}$$

A2

Efficiency of the gas heater for process water treatment

As a result, it is advantageously possible to also determine and output the efficiency P2 of the gas heater 100 regarding service water.

The two computationally determined efficiencies can be output in numerical values and / or in symbols and / or at least partially voice-based.

Of course, it is also possible to output the intermediate results Gasheizleistung L, power P1 of the gas heating device for Heizwasseraufbereitung and power P2 of the gas heater for process water treatment.

As a result, recommendations for action are given to a user or a heating system installer in order to improve the efficiency of the gas heating device 100. For example, a plurality of radiators (e.g., radiators, underfloor heaters, etc.) supplied by the gas heater 100 may be uniformly opened to change a heating water amount. This can be done by opening all radiator valves and / or by adding another radiator. This results in influencing of the control signals S4 and S7 and a resulting reduction in the gas heating power L, as a result of which the efficiencies A1, A2 of the gas heater 100 are increased.

It is conceivable in this way also an intervention in a weather-compensated control of the gas heater 100, so that it is no longer regulated exclusively by an outside temperature. As a result, this is done by manually reducing a flow temperature of heating water of the gas heater 100 and / or by reducing an inlet temperature of service water of the gas heater 100, whereby a constant Heiz- or domestic water performance with increased efficiency of the gas heater 100 is realized.

As a result, increased efficiency of the gas heater 100 is promoted by higher efficiency.

• In einem Schritt 300 erfolgt ein Bereitstellen von definierten Steuerungsdaten S1...S3 der Gasheizvorrichtung 100 betreffend einen Brennvorgang für eine Rechnereinrichtung 50.

Fig. 2 shows a basic sequence of an embodiment of the proposed method:

• In a step 300, provision is made of defined control data S1... S3 of the gas heating device 100 relating to a burning process for a computer device 50.

In a step 310, provision is made of defined control data S4... S9 of the gas heating device 100 relating to a water treatment for the computer device 50.

In a step 320, operating data of the gas heater 100 is determined from the control data S1... S9 by means of the computer device 50 during operation of the gas heater 100.

The order of steps 310 and 320 is arbitrary.

Advantageously, the proposed method can be implemented as a software that runs on an electronic computer device 50 and can be realized in this way in a simple manner with only a small additional effort.

In summary, the present invention proposes a method for determining operating data of a gas heating device, which uses already existing control data or control signals of the gas heating device. In this way, helpful additional information is provided which enables a user to operate the gas heating device in an optimized manner. A dependence on a type of gas or gas used is advantageously greatly reduced in this way.

One skilled in the art will suitably modify and / or combine the features of the invention without departing from the gist of the invention.

Claims (12)

Method for determining operating data of a gas heating device (100), comprising the steps: - Providing defined control data (S1 ... S3) of the gas heating device (100) concerning a burning process for a computer device (50); - Providing defined control data (S4 ... S9) of the gas heating device (100) concerning a water treatment for the computer device (50); and - Determining the operating data of the gas heater (100) from the control data (S1 ... S9) by means of the computer device (50) during operation of the gas heater (100). Method according to claim 1, wherein the following data are used as control data (S1 ... S3) of the burning process of the gas heating device (100): rotational speed of a fan device (20), opening degree of a gas supply device (30), ionization current of a burner device (10). Method according to claim 1 or 2, wherein a flow rate of the heating water, a flow temperature of the heating water and a return temperature of the heating water are used as control data (S4 ... S6) relating to heating water treatment of the gas heating device (100). Method according to one of the preceding claims, wherein as control data (S7 ... S9) concerning a process water treatment of the gas heating device (100), a flow rate of the process water, an inlet temperature of the process water and an outlet temperature of the process water are used. Method according to one of the preceding claims, wherein by means of the computer device (50), a gas consumption of the gas heating device (100) during operation of the gas heating device (100) is determined. Method according to claim 4 or 5, wherein a power of the gas heating device (100) concerning the heating water treatment and a power of the gas heating device (100) concerning the process water treatment are determined by means of the computer device (50). Method according to one of the preceding claims, wherein the determination of the operating data of the gas heating device (100) by means of in a control device (40) of the gas heating device (100) arranged computer means (50) is performed. Method according to one of claims 1 to 6, wherein the control data (S1 ... S9) are transmitted to an external device, wherein the determination of the operating data by means of a computer disposed in the external device means (50) is performed. A gas heating apparatus (100), wherein the gas heating apparatus (100) is configured to output operation data of the gas heating apparatus (100) from control data (S1 ... S3) regarding a firing operation of the gas heating apparatus (100) and control data (S4 ... S9) regarding hot water conditioning Gas heater (100) to determine. Gas heating device (100) according to claim 9, characterized in that by means of the computer device (50) an efficiency of the gas heating device (100) relating to heating can be determined. Gas heating device (100) according to claim 9 or 10, characterized in that by means of the computer device (50) an efficiency of the gas heating device (100) concerning the process water treatment can be determined. Computer program product with program code means for carrying out the method according to one of claims 1 to 8, when it runs on a computer device (50) or is stored on a computer-readable data carrier.

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