CN114321722A - Pressure balancing method and device for steam pipe network, storage medium and processor - Google Patents
Pressure balancing method and device for steam pipe network, storage medium and processor Download PDFInfo
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Abstract
The application discloses a pressure balancing method and device for a steam pipe network, a storage medium and a processor. Wherein, the method comprises the following steps: detecting the current operating pressure of a target steam pipe network, and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different; determining a pressure operation interval of a steam pipe network corresponding to the target pipe network grade; comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; acquiring the pipe capacity corresponding to the target steam pipe network; determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with time; and adjusting the current operation pressure according to the tube capacity gradient and the comparison result. The pressure fluctuation of steam pipe network when having solved and having adjusted, has the regulation lag, easily causes noise pollution, increases the technical problem of energy consumption and cost.
Description
Technical Field
The application relates to the field of pressure balance of a steam pipe network, in particular to a pressure balance method, a pressure balance device, a storage medium and a processor of the steam pipe network.
Background
Steam is used as a secondary energy source, is widely used in the technical processes of power generation, heat exchange, heat tracing, mechanical driving, heating, purging and the like, and is the basis for safe, stable and long-period operation of industrial enterprises.
Steam is carried to the device that consumes through steam pipe network from producing vapour device, and in order to the at utmost utilize steam, industrial enterprise generally divides into a plurality of steam pipe networks according to the steam pressure grade, carries out load adjustment through the pressure relief device between each steam pipe network. Therefore, each device has strong relevance, and the adjustment of the processing amount of the device causes the change of the steam consumption and further causes the fluctuation of the pressure of a steam pipe network, thereby influencing the changes of the steam pressure, the temperature and the steam consumption of other devices. When the pressure of the steam pipe network fluctuates, the time for adjusting the load of the steam generating boiler is longer, and larger lag exists. When a high-steam pressure pipe network is adopted to release pressure to a low-steam pressure pipe network, the stability of the pressure of the low-steam pressure pipe network is easily influenced, and even the pressure fluctuation of the multi-stage steam pipe network is caused. When the steam pipe network is emptied in order to stabilize the pressure of the steam pipe network, energy is wasted, noise pollution is easily caused, and energy consumption and cost are increased.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the application provides a pressure balancing method and device for a steam pipe network, a storage medium and a processor, and aims to solve the technical problems that when pressure fluctuation of the steam pipe network is adjusted, adjustment lag exists, noise pollution is easily caused, and energy consumption and cost are increased.
According to an aspect of the embodiments of the present application, there is provided a pressure balancing method for a steam pipe network, including: detecting the current operating pressure of a target steam pipe network, and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different; determining a pressure operation interval of a steam pipe network corresponding to the target pipe network grade; comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; acquiring the pipe capacity corresponding to the target steam pipe network; determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with time; and adjusting the current operation pressure according to the tube capacity gradient and the comparison result.
Optionally, adjusting the current operating pressure according to the tube volume gradient and the comparison result includes: under the condition that the comparison result indicates that the current operation pressure is larger than the maximum value indicated by the pressure operation interval, acquiring the maximum value of the adjustment gradient of the load adjustment device; determining an adjusting parameter according to the adjusting gradient maximum value and the pipe capacity gradient, wherein the adjusting parameter at least comprises the following steps: adjusting the duration, the adjusting sequence, the distribution amount and the rate; and controlling the current operating pressure of the target steam pipe network to return to the pressure operating interval within the adjusting time length.
Optionally, adjusting the current operating pressure according to the tube volume gradient and the comparison result includes: under the condition that the comparison result indicates that the current operation pressure is smaller than the minimum value indicated by the pressure operation interval, acquiring the minimum value of the adjustment gradient of the load adjustment device; determining an adjustment parameter according to the adjustment gradient minimum value and the tube capacity gradient, wherein the adjustment parameter at least comprises: adjusting the time; and controlling the current operating pressure of the target steam pipe network to return to the pressure operating interval within the adjusting time length.
Optionally, obtaining a pipe capacity corresponding to the target steam pipe network includes: determining the inner diameter, steam flow rate, length and steam density of each pipe section in the target steam pipe network; determining the steam capacity of each pipe section according to the inner diameter, the steam flow rate, the length and the steam density; and summing the steam capacity of each pipe section to obtain the pipe capacity.
Optionally, the tube capacity is determined by the following formula:
in the formula, QjRepresenting the capacity of a j-level steam pipe network; qiThe pipe capacity of a pipe section i is shown; diRepresents the inner diameter of the pipe section i; v. ofiRepresents the steam flow rate of pipe section i; liRepresents the length of the pipe section i; rhoiRepresents the steam density of pipe section i.
Optionally, the tube volume gradient is determined by the following equation:
in the formula (I), the compound is shown in the specification,
representing the volume gradient of j-level pipe network pipes; t is tiThe time required for exceeding the operating pressure interval of the steam pipe network;
represents the tube volume gradient of the tube section i; delta PiIs the pressure variation of the pipe section i pressure with the steam flow.
Optionally, determining a pressure operation interval of the steam pipe network corresponding to the target pipe network level includes: obtaining historical operation data of a steam pipe network corresponding to the target pipe network grade, wherein the historical operation data at least comprises the following steps: pressure operating data; and processing the pressure operation data based on a triple standard deviation principle to obtain a pressure operation interval.
According to another aspect of the embodiments of the present application, there is also provided a pressure balancing device for a steam pipe network, including: the detection module is used for detecting the current operating pressure of a target steam pipe network and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different; the first determining module is used for determining a pressure operation interval of the steam pipe network corresponding to the target pipe network grade; the comparison module is used for comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; the acquisition module is used for acquiring the pipe capacity corresponding to the target steam pipe network; the second determining module is used for determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with the time; and the adjusting module is used for adjusting the current operating pressure according to the tube capacity gradient and the comparison result.
According to another aspect of the embodiments of the present application, there is also provided a non-volatile storage medium, where the non-volatile storage medium includes a stored program, and the program controls a device in which the non-volatile storage medium is located to perform any one of the pressure balancing methods for the steam pipe network during execution of the program.
According to another aspect of the embodiments of the present application, there is also provided a processor for executing a program, where the program executes any one of the methods for pressure balancing of a steam pipe network.
In the embodiment of the application, a pipe capacity gradient adjustment mode is adopted, the current operation pressure of a target steam pipe network is detected, and the target pipe network grade corresponding to the target steam pipe network is determined; determining a pressure operation interval of a steam pipe network corresponding to the target pipe network grade; comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; acquiring the pipe capacity corresponding to the target steam pipe network; determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with time; the current operating pressure is adjusted according to the pipe capacity gradient and the comparison result, and the purpose of adjusting the operating pressure of the steam pipeline in the shortest time is achieved, so that the technical effects of timely and rapidly adjusting the pressure of the pipe network, reducing noise and saving energy consumption are achieved, and the technical problems that adjustment lag exists, noise pollution is easily caused, and energy consumption and cost are increased when the pressure fluctuation of the steam pipe network is adjusted are solved.
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The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic flow diagram of an alternative method of pressure equalization in a steam pipe network according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a method for balancing pressure in a steam pipe network based on a pipe volume gradient according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a steam pipe network pressure balancing device according to an embodiment of the present application;
FIG. 4 is a flow chart illustrating a steam pipe network pressure balance adjustment according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of an alternative steam pipe network pressure equalization device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with an embodiment of the present application, there is provided an embodiment of a method for pressure equalization of a steam pipe network, where the steps illustrated in the flowchart of the figure may be performed in a computer system, such as a set of computer-executable instructions, and where a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that illustrated herein.
Fig. 1 is a method for pressure equalization of a steam pipe network according to an embodiment of the present application, as shown in fig. 1, the method comprising the steps of:
step S102, detecting the current operating pressure of a target steam pipe network, and determining the target pipe network grade corresponding to the target steam pipe network, wherein the pipe network grades are different, and the operating pressures of the steam pipe networks are different;
step S104, determining a pressure operation interval of the steam pipe network corresponding to the target pipe network grade;
step S106, comparing the magnitude relation between the current operating pressure and the extreme value in the pressure operating interval to obtain a comparison result;
step S108, acquiring the pipe capacity corresponding to the target steam pipe network;
step S110, determining a pipe capacity gradient corresponding to a target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the time change of the pipe capacity;
and step S112, adjusting the current operation pressure according to the tube volume gradient and the comparison result.
In the pressure balancing method of the steam pipe network, the current operating pressure of a target steam pipe network is detected, and the target pipe network grade corresponding to the target steam pipe network is determined, wherein the pipe network grades are different, and the operating pressures of the steam pipe networks are different; determining a pressure operation interval of a steam pipe network corresponding to the target pipe network grade; comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; acquiring the pipe capacity corresponding to the target steam pipe network; determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with time; the current operating pressure is adjusted according to the pipe capacity gradient and the comparison result, and the purpose of adjusting the operating pressure of the steam pipeline in the shortest time is achieved, so that the technical effects of timely and rapidly adjusting the pressure of the pipe network, reducing noise and saving energy consumption are achieved, and the technical problems that adjustment lag exists, noise pollution is easily caused, and energy consumption and cost are increased when the pressure fluctuation of the steam pipe network is adjusted are solved.
In some embodiments of the present application, adjusting the current operating pressure based on the tube volume gradient and the comparison comprises: under the condition that the comparison result indicates that the current operation pressure is larger than the maximum value indicated by the pressure operation interval, acquiring the maximum value of the adjustment gradient of the load adjustment device; determining an adjusting parameter according to the adjusting gradient maximum value and the pipe capacity gradient, wherein the adjusting parameter at least comprises the following steps: adjusting the duration, the adjusting sequence, the distribution amount and the rate; and controlling the current operating pressure of the target steam pipe network to return to the pressure operating interval within the adjusting time length.
In other alternative embodiments of the present application, adjusting the current operating pressure based on the tube volume gradient and the comparison comprises: under the condition that the comparison result indicates that the current operation pressure is smaller than the minimum value indicated by the pressure operation interval, acquiring the minimum value of the adjustment gradient of the load adjustment device; determining an adjustment parameter according to the adjustment gradient minimum value and the tube capacity gradient, wherein the adjustment parameter at least comprises: adjusting the duration, the adjusting sequence, the distribution amount and the rate; and controlling the current operating pressure of the target steam pipe network to return to the pressure operating interval within the adjusting time length.
According to the steam pipe network pressure balancing method based on the pipe capacity gradient, the running state of a pipe network can be obtained through real-time simulation of the steam pipe network, the time required by adjustment is calculated by taking the pipe network capacity gradient threshold value as a reference, the load adjustment sequence, the distribution quantity and the adjustment speed of the steam load adjusting device are output to dispatching personnel, pressure fluctuation of the steam pipe network caused by adjustment of the processing quantity of the device can be quickly adjusted, the influence on the running of other devices is avoided, and the running stability of the device is further ensured.
The load adjusting apparatus includes: the device comprises a power boiler, a steam extraction type steam turbine, an external device, a temperature and pressure reducing device, a circulating water pump, a torch burning accompanying device, a process device, a temperature and pressure reducing device and a vent regulating valve, wherein the adjustment mode of the power boiler is to adjust the steam production amount, the adjustment mode of the steam extraction type steam turbine is to adjust the steam extraction flow, the adjustment mode of the external device is to reduce the steam supply amount, stop steam supply and return steam supply, the adjustment mode of the temperature and pressure reducing device is to adjust the steam inlet amount of an inlet, the adjustment mode of the circulating water pump is to stop the circulating water pump turbine and change the circulating water pump turbine into an electric pump, the adjustment mode of the torch burning accompanying device is to reduce the steam amount of the torch burning accompanying device, the adjustment mode of the process device is to adjust the processing amount of the process device, and the adjustment mode of the vent regulating valve is to open or close.
In some embodiments of the present application, the tube capacity corresponding to the target steam pipe network may be obtained by: determining the inner diameter, steam flow rate, length and steam density of each pipe section in the target steam pipe network; determining the steam capacity of each pipe section according to the inner diameter, the steam flow rate, the length and the steam density; and summing the steam capacity of each pipe section to obtain the pipe capacity.
Specifically, the tube capacity can be determined by the following formula:
in the formula, QjRepresenting the capacity of a j-level steam pipe network; qiThe pipe capacity of a pipe section i is shown; diRepresents the inner diameter of the pipe section i; v. ofiRepresents the steam flow rate of pipe section i; liRepresents the length of the pipe section i; rhoiRepresents the steam density of pipe section i.
Specifically, the tube volume gradient can be determined by the following equation:
in the formula (I), the compound is shown in the specification,
representing the volume gradient of j-level pipe network pipes; t is tiThe time required for exceeding the operating pressure interval of the steam pipe network;
represents the tube volume gradient of the tube section i; delta PiIs the pressure variation of the pipe section i pressure with the steam flow.
In some optional embodiments of the present application, the pressure operation interval of the steam pipe network corresponding to the target pipe network level may be determined in the following manner, specifically, historical operation data of the steam pipe network corresponding to the target pipe network level is obtained, where the historical operation data at least includes: pressure operating data; and processing the pressure operation data based on a triple standard deviation principle to obtain a pressure operation interval.
In the relevant embodiment of this application, when solving the device work load adjustment, steam production and the steam volume change of consumption lead to steam pipe network pressure fluctuation, be difficult to the quick adjustment problem, this application provides a steam pipe network pressure balance method based on pipe capacity gradient, specifically as shown in fig. 2, steam pipe network pressure balance method includes:
the method comprises the following steps: collecting historical operating data of a steam pipe network pressure measuring point in a certain period, and determining an operating interval of the steam pipe network pressure of the level according to a design file;
step two: collecting structural parameters of a field steam pipe network, building a pipe network model by using pipe network simulation software, collecting steam operation data of a steam production and consumption device through a real-time database, and calculating in real time to obtain operation information of the steam pipe network;
step three: and according to the pipe volume of each pipe section and the pipe pressure obtained by the pipe network simulation calculation, building a model between the pipe network volume of the pipe and the pipe network pressure and time, wherein the model is a pipe volume gradient model.
Step four: and calculating to obtain a pipe capacity gradient threshold interval for keeping the pipe network pressure in the operation interval according to the steam pipe network pressure operation interval, the pipe capacity gradient and the pipe network operation information.
Step five: and collecting the processing amount, the steam generation flow and the pressure of a steam generation and consumption device boundary area and/or historical operating data of steam consumption flow and pressure, and establishing a steam flow-processing amount model and a steam pressure-steam flow model.
Step six: and according to the load adjustment quantity of the steam production and consumption load adjusting device, establishing a load adjustment gradient model of the change of the load adjustment quantity of the device along with time.
Step seven: and monitoring whether the pressure of the steam pipe network is in a pressure operation interval of the steam pipe network or not when the processing amount of the device is adjusted, and if so, continuously monitoring without adjusting. If not, adjusting the steam generation and consumption load of the load adjusting device, so that the pressure of the pipe network can be adjusted to the operation interval in the shortest time.
The principle for determining the pressure operation interval of the steam pipe network is as follows: preprocessing the historical operating data, namely deleting missing values and repeated values, processing the data according to a triple standard deviation principle to obtain the minimum value and the maximum value of the pressure of the steam pipe network, namely the pressure operating interval P of the steam pipe networkolp～PoupThe refresh period is 0.5-1 h.
When a steam pipe network model is established, on-site steam pipe network structure parameters are required to be collected, wherein the parameters comprise the length, the inner diameter and the wall thickness of each pipe section, the type and the number of pipe fittings, the material and the thickness of a heat-insulating layer of the steam pipe network between a steam generation and consumption device boundary area and a steam generation and consumption adjusting device boundary area. The steam operation data of the steam generating and consuming device, including steam mass flow, temperature and pressure, are collected through a real-time database, then the steam pipe network simulation software reads the information, and the operation information of the steam pipe network, including steam mass flow, temperature, pressure, flow velocity, temperature drop and pressure drop, is obtained through calculation.
Calculating the pipe capacity of each pipe section according to the pipe section length, the steam flow rate and the pipe inner diameter, then accumulating to obtain the pipe capacity of the steam pipe network of the same grade, wherein the pipe capacity of the steam pipe network is calculated according to the following formula:
in the formula, QjThe network capacity of the steam pipe network of the grade; qiPipe section i pipe capacity; di pipe section i inner diameter; v. ofiPipe section i steam flow rate; liLength of pipe section i; rhoiSection i steam density.
The pipe capacity gradient model is used for calculating the pipe capacity of the grade pipe according to the pipe capacity of each pipe section and the pipe capacity gradient of the pipe capacity along with the change of the pipe pressure and time, and is calculated according to the following formula:
in the formula (I), the compound is shown in the specification,
the capacity gradient of j-level pipe network pipes is adopted; t is tiThe time required for exceeding the operating pressure interval of the steam pipe network;
is the tube volume gradient of tube section i; delta PiIs the pressure variation of the pipe section i pressure with the steam flow.
The steam flow-processing amount model and the steam pressure-steam flow model are used for obtaining the influence degree of the device processing amount adjustment on the pressure change of the steam pipe network, wherein the steam flow-processing amount model is as follows:
Fi＝bi0+bi1Gi+bi2Gi2；
in the formula, Fi represents a steam generation flow rate or a steam consumption flow rate of the ith device; bi0, bi1 and bi2 respectively represent model coefficients of the steam production flow or steam consumption flow of the ith device; gi represents the machining amount of the ith device.
The steam pressure-steam flow model is:
in the formula, Fi represents a steam generation flow rate or a steam consumption flow rate of the ith device; piRepresenting the vapor pressure of the ith device battery; kiRepresenting model coefficients; rhoiRepresents the ith plant vapor density; diThe inner diameter of a steam pipe network in the ith device boundary area is shown; λ represents the model constant.
In the pressure balance adjusting process of the steam pipe network, the steam load adjusting device comprises a power boiler, an extraction steam turbine, a temperature and pressure reducer and a vent adjusting valve. The power boiler is adjusted in a mode of adjusting steam production, the extraction steam turbine is adjusted in a mode of adjusting extraction steam flow, the temperature and pressure reducer is adjusted in a mode of adjusting inlet steam inflow, and the emptying adjusting valve is opened or closed.
The load adjustment gradient model of the change of the load adjustment quantity of the steam load adjusting device along with the time is as follows:
in the formula (I), the compound is shown in the specification,
adjusting the gradient for the load of the load adjusting device k; mkAdjusting gradient model coefficients for the k load of the load adjusting device; a iskIs a model constant; delta PkIs the amount of pressure change.
Monitoring whether the pressure of the steam pipe network is in an operation interval or not when the processing amount of the device is adjusted, if the pressure of the steam pipe network exceeds the operation interval, adjusting the steam production and consumption load of the load adjusting device, wherein the load adjusting device is divided into two conditions:
the first condition is as follows: when the pressure of the steam pipe network is larger than the maximum value of the pressure operation interval of the steam pipe network, the adjustment of the processing amount of the device causes the reduction of the steam demand, and at the moment, the load of the steam adjusting device needs to be reduced. And calculating according to the maximum value of the adjustment gradient of the load adjusting device and the gradient threshold of the capacity of the running pipe network to obtain the adjustment time, and adjusting the distribution amount and the adjustment rate of the load according to the load adjusting device so as to adjust the pressure of the pipe network to the running interval in the shortest time.
Case two: when the pressure of the steam pipe network is smaller than the minimum value of the pressure operation interval of the steam pipe network, the adjustment of the processing amount of the device leads to the increase of the steam demand, and at the moment, the load of the steam adjusting device needs to be increased. And calculating to obtain the adjustment time according to the minimum value of the pipe capacity gradient threshold and the operation pipe network capacity gradient threshold, and adjusting the distribution amount and the adjustment rate according to the load of the load adjusting device, so that the operation interval of the pipe network pressure value can be adjusted in the shortest time.
Preferably, the load adjusting device adjusts the duration, the adjusting sequence, the distribution amount and the adjusting rate according to the following formulas:
in the formula (I), the compound is shown in the specification,
is a tube volume gradient threshold;
adjusting the maximum load of the load adjusting device k;
the maximum gradient is set for the load of the load adjustment device k.
According to the steam pipe network pressure balancing method based on the pipe capacity gradient, the running state of a pipe network is obtained through real-time simulation of the steam pipe network, the time required by adjustment is calculated by taking a pipe network capacity gradient threshold value as a reference, the load adjustment sequence, the distribution quantity and the adjustment speed of a steam load adjusting device are output to a dispatcher, the pressure fluctuation of the steam pipe network caused by adjustment of the processing quantity of the device can be quickly adjusted, the influence on the running of other devices is avoided, and the running stability of the device is further ensured.
Fig. 3 is a schematic structural diagram of a steam pipe network pressure balancing device based on a pipe volume gradient according to this embodiment, and specifically as shown in fig. 3, the steam pipe network pressure balancing device includes:
the data acquisition module 201 is used for acquiring historical operation data of a pressure measurement point of the steam pipe network, steam operation data of a steam generating and consuming device and structural parameters of the field steam pipe network through a real-time database;
the steam pipe network simulation module 202 is used for building a steam pipe network model, and calculating in real time to obtain steam pipe network operation information according to steam operation data of the steam production and consumption device collected by the real-time database;
a pipe network pressure operation interval module 203, configured to determine and update an operation interval of the steam pipe network pressure, and monitor the steam pipe network pressure at the same time;
the pipe capacity gradient module 204 is used for calculating the pipe capacity gradient of the operating pipe network and the pipe capacity gradient threshold value in the pressure operating interval of the steam pipe network;
the device model module 205 is used for establishing a steam flow-processing quantity model, a steam pressure-steam flow model and a load adjustment gradient model according to the data acquired by the data acquisition module;
and the load adjusting module 206 is configured to determine the operating pressure of the steam pipe network, and output a load adjusting device to adjust the sequence, the time, the distribution amount, and the rate, so that the operating pressure of the steam pipe network is adjusted to the operating interval of the steam pipe network within the shortest time.
The steam pipe network pressure balancing device based on the pipe capacity gradient obtains the running state of a pipe network through real-time simulation of the steam pipe network, calculates the required time for adjustment by taking a pipe network capacity gradient threshold value as a reference, outputs the load adjustment sequence, the distribution amount and the adjustment rate of the steam load adjusting device to dispatch personnel, can quickly adjust the pressure fluctuation of the steam pipe network caused by the adjustment of the processing amount of the device, avoids influencing the running of other devices, and further ensures the stable running of the device.
Fig. 4 is a flow chart of a steam pipe network pressure balance adjustment method based on a pipe capacity gradient according to an embodiment of the present application, specifically shown in fig. 4:
monitoring the operating pressure of the steam pipe network, and judging whether the operating pressure of the steam pipe network is in a steam pipe network pressure operating interval or not when the device processing amount is adjusted.
And if the operating pressure of the steam pipe network is in the steam pipe network pressure operating interval, continuously monitoring the operating pressure of the steam pipe network.
And if the operating pressure of the steam pipe network is not in the steam pipe network pressure operating interval, judging whether the operating pressure of the steam pipe network is greater than the maximum value of the steam pipe network pressure operating interval.
If the operation pressure of the steam pipe network is larger than the maximum value of the pressure operation interval of the steam pipe network, the steam demand is reduced due to adjustment of the processing amount of the device, and at the moment, the load of the steam adjusting device needs to be reduced. And calculating according to the maximum value of the adjustment gradient of the load adjusting device and the gradient threshold of the capacity of the running pipe network to obtain the adjustment time, and adjusting the distribution amount of the load according to the load adjusting device so as to adjust the pressure of the pipe network to the running interval in the shortest time.
If the operating pressure of the steam pipe network is smaller than the maximum value of the pressure operating interval of the steam pipe network, the steam demand is increased due to adjustment of the processing amount of the device, and the load of the steam adjusting device needs to be increased. And calculating to obtain the adjustment time according to the minimum value of the pipe capacity gradient threshold and the operation pipe network capacity gradient threshold, and adjusting the distribution amount according to the load of the load adjusting device, so that the operation interval of the pipe network pressure value can be adjusted in the shortest time.
And then, the dispatching personnel adjusts the load of the load adjusting device according to the output result, and continues to monitor the operating pressure of the steam pipe network after the adjustment is finished.
Fig. 5 is a pressure equalization device for a steam pipe network according to an embodiment of the present application, as shown in fig. 5, the device comprising:
the detection module 40 is used for detecting the current operating pressure of the target steam pipe network and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different;
the first determining module 42 is configured to determine a pressure operation interval of the steam pipe network corresponding to the target pipe network level;
the comparison module 44 is used for comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result;
an obtaining module 46, configured to obtain a pipe capacity corresponding to a target steam pipe network;
a second determining module 48, configured to determine a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, where the pipe capacity gradient is used to indicate a change in pressure of the target steam pipe network along with a change in pipe capacity over time;
and the adjusting module 50 is used for adjusting the current operating pressure according to the tube capacity gradient and the comparison result.
In the pressure balancing device of the steam pipe network, a detection module 40 is used for detecting the current operating pressure of a target steam pipe network and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different; the first determining module 42 is configured to determine a pressure operation interval of the steam pipe network corresponding to the target pipe network level; the comparison module 44 is used for comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; an obtaining module 46, configured to obtain a pipe capacity corresponding to a target steam pipe network; a second determining module 48, configured to determine a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, where the pipe capacity gradient is used to indicate a change in pressure of the target steam pipe network along with a change in pipe capacity over time; the adjusting module 50 is used for adjusting the current operating pressure according to the pipe capacity gradient and the comparison result, and achieves the purpose of adjusting the operating pressure of the steam pipeline in the shortest time, so that the technical effects of timely and rapidly adjusting the pressure of the pipe network, reducing noise and saving energy consumption are achieved, and the technical problems of lag in adjustment, easy noise pollution and energy consumption and cost increase when the pressure fluctuation of the steam pipe network is adjusted are solved.
According to another aspect of the embodiments of the present application, there is also provided a non-volatile storage medium, where the non-volatile storage medium includes a stored program, and the program controls a device in which the non-volatile storage medium is located to perform any one of the pressure balancing methods for the steam pipe network during execution of the program.
According to another aspect of the embodiments of the present application, there is also provided a processor for executing a program, where the program executes any one of the methods for pressure balancing of a steam pipe network.
Specifically, the storage medium is used for storing program instructions for executing the following functions, and the following functions are realized:
detecting the current operating pressure of a target steam pipe network, and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different; determining a pressure operation interval of a steam pipe network corresponding to the target pipe network grade; comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; acquiring the pipe capacity corresponding to the target steam pipe network; determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with time; and adjusting the current operation pressure according to the tube capacity gradient and the comparison result.
Detecting the current operating pressure of a target steam pipe network, and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different; determining a pressure operation interval of a steam pipe network corresponding to the target pipe network grade; comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; acquiring the pipe capacity corresponding to the target steam pipe network; determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with time; and adjusting the current operation pressure according to the tube capacity gradient and the comparison result.
Specifically, the processor is configured to call a program instruction in the memory, and implement the following functions:
detecting the current operating pressure of a target steam pipe network, and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different; determining a pressure operation interval of a steam pipe network corresponding to the target pipe network grade; comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; acquiring the pipe capacity corresponding to the target steam pipe network; determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with time; and adjusting the current operation pressure according to the tube capacity gradient and the comparison result.
In the related embodiment of the application, a pipe capacity gradient adjustment mode is adopted, the current operation pressure of a target steam pipe network is detected, and the grade of the target pipe network corresponding to the target steam pipe network is determined; determining a pressure operation interval of a steam pipe network corresponding to the target pipe network grade; comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result; acquiring the pipe capacity corresponding to the target steam pipe network; determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pressure change of the target steam pipe network along with the change of the pipe capacity along with time; the current operating pressure is adjusted according to the pipe capacity gradient and the comparison result, and the purpose of adjusting the operating pressure of the steam pipeline in the shortest time is achieved, so that the technical effects of timely and rapidly adjusting the pressure of the pipe network, reducing noise and saving energy consumption are achieved, and the technical problems that adjustment lag exists, noise pollution is easily caused, and energy consumption and cost are increased when the pressure fluctuation of the steam pipe network is adjusted are solved.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (10)
1. A pressure balancing method for a steam pipe network is characterized by comprising the following steps:
detecting the current operating pressure of a target steam pipe network, and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the grades of the pipe networks are different, and the operating pressures of the steam pipe networks are different;
determining a pressure operation interval of the steam pipe network corresponding to the target pipe network grade;
comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result;
acquiring the pipe capacity corresponding to the target steam pipe network;
determining a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, wherein the pipe capacity gradient is used for indicating the pipe capacity to change with time and the pressure of the target steam pipe network changes;
and adjusting the current operating pressure according to the tube volume gradient and the comparison result.
2. The method of claim 1, wherein adjusting the current operating pressure as a function of the tube volume gradient and the comparison comprises:
under the condition that the comparison result indicates that the current operation pressure is larger than the maximum value indicated by the pressure operation interval, acquiring the maximum value of the adjustment gradient of the load adjustment device;
determining an adjustment parameter according to the adjustment gradient maximum and the tube capacity gradient, wherein the adjustment parameter at least comprises: adjusting the duration, the adjusting sequence, the distribution amount and the rate;
and controlling the current operating pressure of the target steam pipe network to return to the pressure operating interval within the adjusting time length.
3. The method of claim 1, wherein adjusting the current operating pressure as a function of the tube volume gradient and the comparison comprises:
under the condition that the comparison result indicates that the current operation pressure is smaller than the minimum value indicated by the pressure operation interval, acquiring the minimum value of the adjustment gradient of the load adjustment device;
determining an adjustment parameter according to the adjustment gradient minimum and the tube volume gradient, wherein the adjustment parameter at least comprises: adjusting the duration, the adjusting sequence, the distribution amount and the rate;
and controlling the current operating pressure of the target steam pipe network to return to the pressure operating interval within the adjusting time length.
4. The method of claim 1, wherein obtaining the pipe capacity corresponding to the target steam pipe network comprises:
determining the inner diameter, the steam flow rate, the length and the steam density of each pipe section in the target steam pipe network;
determining the steam capacity of each pipe section according to the inner diameter, the steam flow rate, the length and the steam density;
and summing the steam capacity of each pipe section to obtain the pipe capacity.
5. The method of claim 4, wherein the tube volume is determined by the formula:
in the formula, QjRepresenting the capacity of a j-level steam pipe network; qiThe pipe capacity of a pipe section i is shown; diRepresents the inner diameter of the pipe section i; v. ofiRepresents the steam flow rate of pipe section i; liRepresents the length of the pipe section i; rhoiRepresents the steam density of pipe section i.
6. The method of claim 5, wherein the tube volume gradient is determined by the formula:
in the formula (I), the compound is shown in the specification,
representing the volume gradient of j-level pipe network pipes; t is tiThe time required for exceeding the operating pressure interval of the steam pipe network;
represents the tube volume gradient of the tube section i; delta PiIs the pressure variation of the pipe section i pressure with the steam flow.
7. The method of claim 1, wherein determining the pressure operating interval of the steam pipe network corresponding to the target pipe network level comprises:
obtaining historical operation data of the steam pipe network corresponding to the target pipe network grade, wherein the historical operation data at least comprises the following steps: pressure operating data;
and processing the pressure operation data based on a triple standard deviation principle to obtain the pressure operation interval.
8. A pressure balancing device for a steam pipe network, comprising:
the detection module is used for detecting the current operating pressure of a target steam pipe network and determining the grade of the target pipe network corresponding to the target steam pipe network, wherein the pipe network grades are different, and the operating pressures of the steam pipe networks are different;
the first determining module is used for determining a pressure operation interval of the steam pipe network corresponding to the target pipe network grade;
the comparison module is used for comparing the magnitude relation between the current operating pressure and an extreme value in the pressure operating interval to obtain a comparison result;
the acquisition module is used for acquiring the pipe capacity corresponding to the target steam pipe network;
a second determining module, configured to determine a pipe capacity gradient corresponding to the target steam pipe network according to the pipe capacity, where the pipe capacity gradient is used to indicate a pressure change of the target steam pipe network along with a time change of the pipe capacity;
and the adjusting module is used for adjusting the current operating pressure according to the pipe capacity gradient and the comparison result.
9. A non-volatile storage medium, comprising a stored program, wherein when the program is executed, the apparatus in which the non-volatile storage medium is located is controlled to execute the pressure balancing method of the steam pipe network according to any one of claims 1 to 7.
10. A processor, characterized in that the processor is configured to run a program, wherein the program is configured to perform the method of pressure equalization of a steam pipe network according to any one of claims 1 to 7.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734784A (en) * | 2012-06-21 | 2012-10-17 | 中国石油化工股份有限公司 | Method for controlling pressure of ultra-high pressure steam pipe network |
| JP2013100989A (en) * | 2013-03-06 | 2013-05-23 | Miura Co Ltd | Control program, control device and boiler system |
| CN104005801A (en) * | 2013-02-25 | 2014-08-27 | 宝山钢铁股份有限公司 | Low-pressure steam differential pressure power generation system and reuse steam backpressure control method thereof |
| CN105183013A (en) * | 2015-05-18 | 2015-12-23 | 神华集团有限责任公司 | Multiple steam pipeline systems and steam balance method thereof |
| US20190177849A1 (en) * | 2017-12-13 | 2019-06-13 | Tokyo Electron Limited | Method of processing substrate, storage medium, and raw material gas supply device |
| CN110778918A (en) * | 2019-11-07 | 2020-02-11 | 浙江中控技术股份有限公司 | Control method and system for steam pipe network balance optimization |
| CN112412763A (en) * | 2020-10-09 | 2021-02-26 | 蘑菇物联技术（深圳）有限公司 | Cloud-controlled air compressor cooperative operation method and related equipment thereof |
| CN112682770A (en) * | 2020-12-25 | 2021-04-20 | 中广核研究院有限公司 | Pressure control method and system for through-flow steam generator |
-
2021
- 2021-12-31 CN CN202111679891.4A patent/CN114321722B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734784A (en) * | 2012-06-21 | 2012-10-17 | 中国石油化工股份有限公司 | Method for controlling pressure of ultra-high pressure steam pipe network |
| CN104005801A (en) * | 2013-02-25 | 2014-08-27 | 宝山钢铁股份有限公司 | Low-pressure steam differential pressure power generation system and reuse steam backpressure control method thereof |
| JP2013100989A (en) * | 2013-03-06 | 2013-05-23 | Miura Co Ltd | Control program, control device and boiler system |
| CN105183013A (en) * | 2015-05-18 | 2015-12-23 | 神华集团有限责任公司 | Multiple steam pipeline systems and steam balance method thereof |
| US20190177849A1 (en) * | 2017-12-13 | 2019-06-13 | Tokyo Electron Limited | Method of processing substrate, storage medium, and raw material gas supply device |
| CN110778918A (en) * | 2019-11-07 | 2020-02-11 | 浙江中控技术股份有限公司 | Control method and system for steam pipe network balance optimization |
| CN112412763A (en) * | 2020-10-09 | 2021-02-26 | 蘑菇物联技术（深圳）有限公司 | Cloud-controlled air compressor cooperative operation method and related equipment thereof |
| CN112682770A (en) * | 2020-12-25 | 2021-04-20 | 中广核研究院有限公司 | Pressure control method and system for through-flow steam generator |
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