CN113983543B - Method, device, terminal and storage medium for control of circulation pump of heating power station - Google Patents
Method, device, terminal and storage medium for control of circulation pump of heating power station Download PDFInfo
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- CN113983543B CN113983543B CN202111182356.8A CN202111182356A CN113983543B CN 113983543 B CN113983543 B CN 113983543B CN 202111182356 A CN202111182356 A CN 202111182356A CN 113983543 B CN113983543 B CN 113983543B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
Abstract
The invention provides a method, a device, a terminal and a storage medium for controlling a circulating pump of a heating power station. Heating power station heating system includes: the system comprises a primary net, a secondary net, a heat exchanger, an electric regulating valve and a circulating pump; the joint of the primary net and the secondary net is a heat exchanger; the electric regulating valve is arranged between a water supply branch of the primary network and the heat exchanger; the circulating pump is positioned in the secondary network and connected with the heat exchanger; the method comprises the following steps: acquiring real-time monitoring data of the primary network; acquiring historical monitoring data of the primary network, and determining the fault probability of the circulating pump according to the real-time monitoring data, the historical monitoring data and a fault judgment condition so as to control the running state of the circulating pump according to the fault probability; wherein the real-time monitoring data and the historical monitoring data both comprise: the water supply temperature, the water return temperature and the opening degree of the electric regulating valve; the historical monitoring data comprises monitoring data in a plurality of historical periods adjacent to the real-time monitoring data. The invention can indirectly judge the running state of the circulating pump through the real-time data and the historical data of the primary network of the heating power station system.
Description
Technical Field
The invention relates to the technical field of heating and ventilation control, in particular to a method, a device, a terminal and a storage medium for controlling a circulating pump of a heating power station.
Background
The heating station is divided into a direct supply station and an intermediate supply station according to the heating form. In daily life heating, heat is supplied mainly in a station supply mode. Wherein, the equipment that supplies the station to include has heat exchanger, circulating pump, moisturizing case, electricity accent valve etc.. The station supplying principle is as follows: the heating loop of the heating power company is a primary network, the heating loop of the user (residential building and unit) side is a secondary network, the joint of the primary network and the secondary network is a heat exchanger, and the primary network supplies heat to the secondary network through the heat exchanger. At present, in the process of supplying heat to a user side by an inter-supply station, a heating power company monitors the temperature and pressure of water supplied by a primary network side, the temperature and pressure of water supplied by a secondary network side and the condition of a valve of the inter-supply station so as to detect whether a heat supply network fails. However, the operating frequency of the circulating pump, the water replenishing pump and other devices in a part of the heating power stations cannot be acquired by the opening degree reading mode of the electric regulating valve, and the circulating pump cannot be found and taken control measures in time when the circulating pump fails.
Disclosure of Invention
The embodiment of the invention provides a method, a device, a terminal and a storage medium for controlling a circulating pump of a heating power station, and aims to solve the problem that control measures cannot be found and taken in time when the circulating pump of the heating power station breaks down.
In a first aspect, an embodiment of the present invention provides a method for controlling a heat station circulation pump, where the heat station heating system includes: the system comprises a primary net, a secondary net, a heat exchanger, an electric regulating valve and a circulating pump; the joint of the primary net and the secondary net is a heat exchanger; the electric regulating valve is arranged between the primary network water supply branch and the heat exchanger; the circulating pump is positioned in the secondary network and connected with the heat exchanger; the method comprises the following steps:
acquiring real-time monitoring data of the primary network;
acquiring historical monitoring data of the primary network, and determining the fault probability of the circulating pump according to the real-time monitoring data, the historical monitoring data and a fault judgment condition so as to control the running state of the circulating pump according to the fault probability;
wherein the real-time monitoring data and the historical monitoring data both comprise: the water supply temperature, the water return temperature and the opening degree of the electric regulating valve; the historical monitoring data comprises monitoring data in a plurality of historical periods adjacent to the real-time monitoring data.
In one possible implementation, the method further includes:
acquiring real-time monitoring data of the primary network again, and executing the operation of acquiring historical monitoring data of the primary network and the operation after the historical monitoring data;
the controlling the running state of the circulating pump according to the fault probability comprises the following steps:
when the fault probability determined for a plurality of times continuously meets the shutdown condition, controlling the circulating pump to shut down and generating fault early warning information; wherein the shutdown conditions include: and the fault probabilities determined continuously for multiple times are all larger than or equal to the probability threshold, and the fault probabilities determined in sequence are not reduced.
In one possible implementation, the method further includes:
and when the fault probability determined for a plurality of times does not meet the shutdown condition, increasing the running frequency of the circulating pump or maintaining the running state of the circulating pump.
In a possible implementation manner, determining the failure probability of the circulation pump according to the real-time monitoring data, the historical monitoring data and the failure judgment condition includes:
determining a supply and return temperature difference average value according to the supply water temperature and the return water temperature in the historical monitoring data, determining a return water average value according to the return water temperature in the historical monitoring data, determining an opening average value according to the opening of an electric regulating valve in the historical monitoring data, and determining a real-time supply and return temperature difference according to the supply water temperature and the real-time return water temperature in the real-time monitoring data;
and determining the fault probability of the circulating pump according to the real-time return water temperature, the return water average value, the real-time electric regulating valve opening degree, the opening degree average value, the real-time supply and return temperature difference, the supply and return temperature difference average value and the fault judgment condition.
In a possible implementation manner, the fault determination condition includes: a first condition, a second condition, and a third condition;
the first condition comprises that the difference value between the real-time return water temperature and the return water average value is greater than a temperature threshold value;
the second condition comprises that the ratio of the opening of the real-time electrically-controlled valve to the average value of the opening is larger than a first ratio and smaller than a second ratio;
the third condition comprises that the ratio of the real-time supply and return temperature difference to the average value of the supply and return temperature difference is greater than a third ratio and smaller than a fourth ratio.
In a possible implementation manner, determining the fault probability of the circulating pump according to the real-time return water temperature, the return water average value, the real-time electric regulating valve opening, the opening average value, the real-time supply and return temperature difference, the supply and return temperature difference average value and the fault judgment condition includes:
determining that the failure probability of the circulation pump is a first probability when any one of the first condition, the second condition and the third condition is satisfied;
determining that the fault probability of the circulating pump is a second probability when the first condition and the second condition are met or the first condition and the third condition are met;
determining that the failure probability of the circulation pump is a third probability when the second condition and the third condition are satisfied, or the first condition, the second condition and the third condition are satisfied;
wherein the first probability is less than the probability threshold; the second probability is equal to the probability threshold; the third probability is greater than the probability threshold.
In a possible implementation manner, before the obtaining of the historical monitoring data of the primary network, the method further includes:
obtaining the standing opening degree of the electric regulating valve in a closed state;
and when the opening of the electric regulating valve in the real-time monitoring data is larger than the standing opening, executing the operation of acquiring the historical monitoring data of the primary network.
In a second aspect, an embodiment of the present invention provides an apparatus for heat station cycle pump control, including:
the first acquisition module is used for acquiring real-time monitoring data of the primary network;
the second acquisition module is used for acquiring historical monitoring data of the primary network;
the determining module is used for determining the fault probability of the circulating pump according to the real-time monitoring data, the historical monitoring data and the fault judging condition so as to control the running state of the circulating pump according to the fault probability; wherein the real-time monitoring data and the historical monitoring data both comprise: the water supply temperature, the water return temperature and the opening degree of the electric regulating valve; the historical monitoring data comprises monitoring data in a plurality of historical periods adjacent to the real-time monitoring data.
In one possible implementation, the apparatus further includes: the control module is used for controlling the circulating pump to stop and generating fault early warning information when the fault probability determined for multiple times continuously meets a stop condition; wherein the shutdown conditions include: the fault probabilities determined continuously for multiple times are all larger than or equal to the probability threshold, and the fault probabilities determined sequentially are not reduced.
In one possible implementation, the apparatus further includes: the third acquisition module is used for acquiring the standing opening degree of the electric regulating valve in a closed state;
and the second acquisition module is used for executing the operation of acquiring the historical monitoring data of the primary network when the opening of the electric regulating valve in the real-time monitoring data is larger than the opening of the standing network.
In a third aspect, an embodiment of the present invention provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method according to the first aspect or any possible implementation manner of the first aspect when executing the computer program.
In a fourth aspect, the present invention provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the method according to the first aspect or any one of the possible implementation manners of the first aspect.
The embodiment of the invention provides a method, a device, a terminal and a storage medium for controlling a circulating pump of a heating power station, which are used for controlling the running state of the circulating pump according to the fault probability by acquiring real-time monitoring data and historical monitoring data of a primary network and determining the fault probability of the circulating pump according to the real-time monitoring data, the historical monitoring data and the fault judgment condition, namely indirectly judging the running state of the circulating pump through the real-time monitoring data and the historical monitoring data of the primary network and the secondary network of the heating power station system under the condition that the running frequency of the circulating pump cannot be acquired so as to ensure that control measures are taken in time when the circulating pump of the heating power station is judged to be in fault. The monitoring data includes: the water supply temperature, the return water temperature and the opening degree of the electric regulating valve, and the historical monitoring data comprise monitoring data in a plurality of historical periods close to the real-time monitoring data. The method and the device improve the accuracy of judging the running state of the circulating pump based on various parameters, reduce the misjudgment rate of the running state of the circulating pump and reduce the misoperation of the circulating pump control.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a view of an application scenario of a method for controlling a circulation pump of a heat station according to an embodiment of the present invention;
FIG. 2 is a flow chart of an implementation of a method for thermal station cycle pump control provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an apparatus for controlling a heat station cycle pump according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
Fig. 1 is an application scenario diagram of a method for controlling a heat station circulating pump according to an embodiment of the present invention. As shown in fig. 1, the heat station cycle pump system includes a primary network and a secondary network. The equipment in the system comprises a heat exchanger, a circulating pump, a water replenishing tank, an electric regulating valve, a controller, a frequency converter and the like. The primary network comprises a primary network water supply branch and a primary network water return branch, and the secondary network comprises a secondary network water supply branch and a secondary network water return branch. The joint of the primary net and the secondary net is a heat exchanger, and an electric regulating valve is arranged between the heat exchanger and each water supply branch. The circulating pump, the water replenishing pump and the water replenishing tank are arranged on a water return branch of the secondary network. The controller is used for collecting information such as water supply temperature and water supply pressure of the primary network and the secondary network in a centralized manner. The frequency converter is arranged between the controller and the circulating pump.
The embodiment of the invention aims to indirectly judge the running state of a circulating pump through a controller based on monitoring data of a primary network under the condition that the working running frequency of the circulating pump cannot be acquired, and ensure that effective control measures can be taken in time when the circulating pump fails, such as: and powering off the circulating pump frequency converter and executing fault early warning operation.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description is made by way of specific embodiments with reference to the accompanying drawings.
Fig. 2 is a flowchart of an implementation of a method for controlling a thermodynamic station cycle pump according to an embodiment of the present invention.
Step S201, acquiring real-time monitoring data of the primary network.
Step S202, acquiring historical monitoring data of the primary network, and determining the fault probability of the circulating pump according to the real-time monitoring data, the historical monitoring data and the fault judgment condition so as to control the running state of the circulating pump according to the fault probability.
Wherein, real-time monitoring data and historical monitoring data all include: the water supply temperature, the water return temperature and the opening degree of the electric regulating valve; the historical monitoring data comprises monitoring data in a plurality of historical periods adjacent to the real-time monitoring data.
In the embodiment of the method, the obtained opening degree of the electric regulating valve is the opening degree of the electric regulating valve between the water supply branch of the primary network and the heat exchanger.
In this embodiment, the real-time monitoring data and the historical monitoring data of the primary network are acquired, the fault probability of the circulating pump is determined according to the real-time monitoring data, the historical monitoring data and the fault judgment condition, and the operation state of the circulating pump is controlled according to the fault probability, that is, the operation state of the circulating pump is indirectly judged through the real-time monitoring data and the historical monitoring data of the primary network of the heating power station system under the condition that the operation frequency of the circulating pump cannot be acquired, so that the control measures are timely taken when the circulating pump of the heating power station is judged to be in fault. The monitoring data includes: the water supply temperature, the return water temperature and the opening degree of the electric regulating valve, and the historical monitoring data comprise monitoring data in a plurality of historical periods close to the real-time monitoring data. The accuracy of judging the running state of the circulating pump is improved based on various parameters, the misjudgment rate of the running state of the circulating pump is reduced, and the misoperation of the circulating pump control is reduced.
In various embodiments, the operating state of the circulation pump is optionally controlled on the basis of the failure probability determined once or more.
In one possible implementation, after a single determination of the failure probability of the circulation pump according to the foregoing embodiment, the failure state of the circulation pump is determined according to the determined failure probability, and relevant control measures are taken. Specifically, when confirming that the fault probability is greater than the fault threshold value, confirm the circulating pump trouble promptly, in time control the circulating pump and shut down and generate early warning information, be convenient for relevant personnel to carry out the circulating pump and overhaul the operation, avoid heating untimely reduction user experience.
In a possible implementation manner, after step S202, the method further includes:
and acquiring the real-time monitoring data of the primary network of the heating power station again, executing the operation of acquiring the historical monitoring data of the primary network of the heating power station and the operation after the historical monitoring data, namely determining the fault probability for a plurality of times, judging the fault state of the circulating pump based on the fault probability determined for a plurality of times, and improving the accuracy of judging the running state of the circulating pump.
Wherein, according to the running state of fault probability control circulating pump, include: when the fault probability determined for a plurality of times continuously meets the shutdown condition, controlling the circulating pump to shut down and generating fault early warning information; wherein the shutdown conditions include: the fault probabilities determined continuously for multiple times are all larger than or equal to the probability threshold, and the fault probabilities determined sequentially are not reduced. Optionally, the number of times of repeatedly determining the failure probability is 2 to 5 times. The repeated execution times are not excessive, and the operation of determining the fault probability is prevented from being executed for multiple times when the circulating pump breaks down, so that the running time of the circulating pump in the fault state is prolonged. In an embodiment of the present invention, the process of determining the probability of failure is repeatedly performed 3 times.
In one possible implementation, the method further includes: and when the fault probability determined for a plurality of times continuously does not meet the shutdown condition, increasing the running frequency of the circulating pump or maintaining the running state of the circulating pump.
When the failure probability is continuously determined for multiple times and the shutdown condition is not met, the circulating pump is determined to normally work, the running state of the circulating pump is maintained unchanged, or the running frequency of the circulating pump is too low to cause the failure judgment condition to be met but the shutdown condition to be not met, and then the running frequency of the circulating pump is improved through the controller.
In a possible implementation manner, in step S202, determining a failure probability of the circulation pump according to the real-time monitoring data, the historical monitoring data and the failure judgment condition includes:
determining a supply and return temperature difference average value according to the supply water temperature and the return water temperature in the historical monitoring data, determining a return water average value according to the return water temperature in the historical monitoring data, determining an opening average value according to the opening of an electric regulating valve in the historical monitoring data, and determining a real-time supply and return temperature difference according to the supply water temperature and the real-time return water temperature in the real-time monitoring data;
and determining the fault probability of the circulating pump according to the real-time return water temperature, the return water average value, the real-time electric regulating valve opening degree, the opening average value, the real-time supply and return temperature difference, the supply and return temperature difference average value and the fault judgment condition.
Wherein, the supply-return temperature difference is the difference value of the supply water temperature minus the return water temperature of the primary network. And judging that the opening of the electric regulating valve of the primary network is within a normal fluctuation range based on the opening and the opening average value of the real-time electric regulating valve. When the circulating pump breaks down, because can not normal heat transfer, when the electricity governing valve of a net normally opened, a net return water temperature can rise, based on real-time return water temperature, return water average value as the judgement basis of return water temperature change. In addition, when the circulating pump breaks down, because can not normal heat transfer, the temperature difference can diminish gradually once, consequently, supply back the temperature difference and supply back the temperature difference average value as the judgement basis based on supplying in real time.
In one possible implementation, the fault determination condition includes: a first condition, a second condition, and a third condition;
the first condition comprises that the difference value between the real-time backwater temperature and the backwater average value is greater than a temperature threshold value;
the second condition comprises that the ratio of the opening of the real-time electric regulating valve to the average value of the opening is larger than the first ratio and smaller than the second ratio;
the third condition comprises that the ratio of the real-time supply and return temperature difference to the average value of the supply and return temperature differences is larger than the third ratio and smaller than the fourth ratio.
The return water temperature in the fault judgment condition is the return water temperature of the primary network side, and the supply and return temperature difference is the difference value between the water supply temperature and the return water temperature of the primary network.
In one possible implementation, the third ratio is smaller than the first ratio, and the second ratio is smaller than the fourth ratio.
Optionally, the temperature threshold in the first condition is 2 to 5 ℃. Optionally, the temperature threshold is 2 ℃, 3 ℃, 4 ℃ or 5 ℃. I.e. when the temperature threshold is 2 deg.C, the first condition is t1-t1 AVG >2 ℃, wherein t1 is the real-time backwater temperature, t1 AVG The average value of the backwater in a plurality of historical periods adjacent to the real-time monitoring data is obtained.
Optionally, under the second condition, the first ratio is 90% and the second ratio is 110%. I.e. the second condition is | V-V AVG |÷|V AVG |*100％<10%, wherein V is the opening of the real-time electric regulating valve, V AVG The opening average value of the electric regulating valve in a plurality of historical periods adjacent to the real-time monitoring data is obtained.
Alternatively, in the third condition, the third ratio is 70%, and the fourth ratio is 130%. That is, the third condition is | t2-t2 AVG |÷|t2 AVG |*100％>30 percent, wherein t2 is the real-time supply and return temperature difference, t2 AVG The average value of the supply and return temperature differences in a plurality of historical periods adjacent to the real-time monitoring data is obtained.
In one possible implementation, the method for determining the fault probability of the circulating pump according to the real-time return water temperature, the return water average value, the real-time electric regulating valve opening, the opening average value, the real-time supply and return temperature difference, the supply and return temperature difference average value and the fault judgment condition includes the following steps:
when any one of the first condition, the second condition and the third condition is met, determining the fault probability of the circulating pump as a first probability;
when the first condition and the second condition are met, or the first condition and the third condition are met, determining the fault probability of the circulating pump as a second probability;
when the second condition and the third condition are met, or the first condition, the second condition and the third condition are met, determining the fault probability of the circulating pump as a third probability;
wherein the first probability is less than a probability threshold; the second probability is equal to the probability threshold; the third probability is greater than the probability threshold.
In a specific embodiment, the corresponding relationship of the failure probability of the corresponding circulation pump meeting different conditions is as follows:
| condition of satisfying the condition | Probability of failure |
| Satisfying only the first, second, or third conditions | 30％ |
| Satisfies a first condition and a second condition | 60％ |
| Satisfies the first and third conditions | 60％ |
| Satisfy the second and third conditions | 90％ |
| Satisfy the first condition, the second condition and the third condition at the same time | 90％ |
Wherein the probability threshold is 60%. In one embodiment, the fault state of the circulation pump is judged based on three consecutive fault probability calculation results, and each calculation result is more than 60%.
In a possible implementation manner, before obtaining the historical monitoring data of the primary network, the method further includes:
obtaining the standing opening degree of the electric regulating valve in a closed state;
executing the operation of acquiring the historical monitoring data of the primary network when the opening of the electric regulating valve in the real-time monitoring data is larger than the opening of the standing valve
The electrically adjustable valve can keep a certain opening degree when being in a closed state, and in a specific embodiment, the standing opening degree in the closed state can be different. Before obtaining historical monitoring data of the primary network and carrying out relevant judgment operation, determining that the opening of the real-time electric tilt valve is larger than the standing opening, and ensuring that the obtained monitoring data of the primary network is data in the operation state of the heating power station system, namely that the primary side electric tilt valve is in an open state.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The following are embodiments of the apparatus of the invention, reference being made to the corresponding method embodiments described above for details which are not described in detail therein.
Fig. 3 shows a schematic structural diagram of an apparatus for controlling a heat station circulating pump according to an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:
as shown in fig. 3, the apparatus for heat station cycle pump control comprises: a first obtaining module 301, a second obtaining module 302 and a determining module 303.
The first obtaining module 301 is configured to obtain real-time monitoring data of a primary network.
A second obtaining module 302, configured to obtain historical monitoring data of the primary network.
The determining module 303 is configured to determine a fault probability of the circulation pump according to the real-time monitoring data, the historical monitoring data, and the fault judgment condition, so as to control an operation state of the circulation pump according to the fault probability; wherein, real-time monitoring data and historical monitoring data all include: the water supply temperature, the water return temperature and the opening degree of the electric regulating valve; the historical monitoring data comprises monitoring data in a plurality of historical periods adjacent to the real-time monitoring data.
In one possible implementation, the apparatus further includes: the control module is used for controlling the circulating pump to stop and generating fault early warning information when the fault probability determined for multiple times continuously meets the stop condition; wherein the shutdown conditions include: and the fault probabilities determined continuously for multiple times are all larger than or equal to the probability threshold, and the fault probabilities determined in sequence are not reduced.
In one possible implementation, the apparatus further includes: the third acquisition module is used for acquiring the standing opening degree of the electric regulating valve in a closed state;
and the second obtaining module 302 is configured to execute an operation of obtaining historical monitoring data of the primary network when the opening of the electrically-adjusted valve in the real-time monitoring data is greater than the opening of the standing network.
In this embodiment, the real-time monitoring data and the historical monitoring data of the primary network are acquired, the fault probability of the circulating pump is determined according to the real-time monitoring data, the historical monitoring data and the fault judgment condition, and the operation state of the circulating pump is controlled according to the fault probability, that is, the operation state of the circulating pump is indirectly judged through the real-time monitoring data and the historical monitoring data of the primary network of the heating power station system under the condition that the operation frequency of the circulating pump cannot be acquired, so that the control measures are timely taken when the circulating pump of the heating power station is judged to be in fault. The monitoring data includes: the water supply temperature, the return water temperature and the opening degree of the electric regulating valve, and the historical monitoring data comprise monitoring data in a plurality of historical periods close to the real-time monitoring data. The accuracy of judging the running state of the circulating pump is improved based on various parameters, the misjudgment rate of the running state of the circulating pump is reduced, and the misoperation of the circulating pump control is reduced.
Fig. 4 is a schematic diagram of a terminal according to an embodiment of the present invention. As shown in fig. 4, the terminal 4 of this embodiment includes: a processor 40, a memory 41 and a computer program 42 stored in said memory 41 and executable on said processor 40. The processor 40, when executing the computer program 42, implements the steps described above in each of the method embodiments for thermal station cycle pump control, such as steps S201-S202 shown in fig. 2. Alternatively, the processor 40, when executing the computer program 42, implements the functions of each module/unit in each device embodiment described above, for example, the functions of the modules 301 to 303 shown in fig. 3.
Illustratively, the computer program 42 may be partitioned into one or more modules/units that are stored in the memory 41 and executed by the processor 40 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 42 in the terminal 4. For example, the computer program 42 may be divided into the modules 301 to 303 shown in fig. 3.
The terminal 4 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal 4 may include, but is not limited to, a processor 40, a memory 41. Those skilled in the art will appreciate that fig. 4 is only an example of a terminal 4 and does not constitute a limitation of terminal 4 and may include more or less components than those shown, or some components in combination, or different components, for example, the terminal may also include input output devices, network access devices, buses, etc.
The Processor 40 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 41 may be an internal storage unit of the terminal 4, such as a hard disk or a memory of the terminal 4. The memory 41 may also be an external storage device of the terminal 4, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the terminal 4. Further, the memory 41 may also include both an internal storage unit and an external storage device of the terminal 4. The memory 41 is used for storing the computer program and other programs and data required by the terminal. The memory 41 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal and method may be implemented in other ways. For example, the above-described apparatus/terminal embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be 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 through some interfaces, indirect coupling or communication connection of devices or units, and may be in an electrical, mechanical 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 network 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 invention 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 module/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, all or part of the processes of the method of the embodiments described above can be implemented by a computer program, which can be stored in a computer readable storage medium and can be executed by a processor to implement the steps of the embodiments of the method for controlling the cycling pump of the thermal power station. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (8)
1. A method for heat station cycle pump control, characterized in that the heating system of the heat station comprises: the system comprises a primary net, a secondary net, a heat exchanger, an electric regulating valve and a circulating pump; the joint of the primary net and the secondary net is a heat exchanger; the electric regulating valve is arranged between a water supply branch of the primary network and the heat exchanger; the circulating pump is positioned in the secondary network and connected with the heat exchanger; the method comprises the following steps:
acquiring real-time monitoring data of the primary network;
acquiring historical monitoring data of the primary network, and determining the fault probability of the circulating pump according to the real-time monitoring data, the historical monitoring data and a fault judgment condition so as to control the running state of the circulating pump according to the fault probability;
wherein the real-time monitoring data and the historical monitoring data both comprise: the water supply temperature, the water return temperature and the opening degree of the electric regulating valve; the historical monitoring data comprises monitoring data in a plurality of historical periods adjacent to the real-time monitoring data;
determining the fault probability of the circulating pump according to the real-time monitoring data, the historical monitoring data and the fault judgment condition, wherein the fault probability comprises the following steps:
determining a supply and return temperature difference average value according to the supply water temperature and the return water temperature in the historical monitoring data, determining a return water average value according to the return water temperature in the historical monitoring data, determining an opening average value according to the opening of an electric regulating valve in the historical monitoring data, and determining a real-time supply and return temperature difference according to the supply water temperature and the real-time return water temperature in the real-time monitoring data;
determining the fault probability of the circulating pump according to the real-time return water temperature, the return water average value, the opening of the real-time electric regulating valve, the opening average value, the real-time supply and return temperature difference, the supply and return temperature difference average value and the fault judgment condition;
wherein the fault determination condition includes: a first condition, a second condition, and a third condition;
the first condition comprises that the difference value between the real-time return water temperature and the return water average value is greater than a temperature threshold value;
the second condition comprises that the ratio of the opening of the real-time electrically-controlled valve to the average value of the opening is larger than a first ratio and smaller than a second ratio;
the third condition comprises that the ratio of the real-time supply and return temperature difference to the average value of the supply and return temperature difference is greater than a third ratio and smaller than a fourth ratio.
2. The method of claim 1, further comprising:
acquiring real-time monitoring data of the primary network again, and executing the operation of acquiring historical monitoring data of the primary network and the operation after the historical monitoring data;
the controlling the running state of the circulating pump according to the fault probability comprises the following steps:
when the fault probability determined for a plurality of times continuously meets the shutdown condition, controlling the circulating pump to shut down and generating fault early warning information; wherein the shutdown condition comprises: the fault probabilities determined continuously for multiple times are all larger than or equal to the probability threshold, and the fault probabilities determined sequentially are not reduced.
3. The method of claim 2, further comprising:
and when the fault probability determined for a plurality of times does not meet the shutdown condition, increasing the running frequency of the circulating pump or maintaining the running state of the circulating pump.
4. The method according to claim 2 or 3, wherein determining the fault probability of the circulating pump according to the real-time return water temperature, the return water average value, the real-time electrically-adjusted valve opening, the opening average value, the real-time supply and return temperature difference, the supply and return temperature difference average value and a fault judgment condition comprises:
when any one of the first condition, the second condition and the third condition is met, determining that the fault probability of the circulating pump is a first probability;
determining that the fault probability of the circulating pump is a second probability when the first condition and the second condition are met or the first condition and the third condition are met;
determining that the failure probability of the circulation pump is a third probability when the second condition and the third condition are satisfied, or the first condition, the second condition and the third condition are satisfied;
wherein the first probability is less than the probability threshold; the second probability is equal to the probability threshold; the third probability is greater than the probability threshold.
5. The method of claim 1, prior to said obtaining historical monitoring data for said primary network, further comprising:
obtaining the standing opening degree of the electric regulating valve in a closed state;
and when the opening of the electric regulating valve in the real-time monitoring data is larger than the opening of the standing valve, executing the operation of acquiring the historical monitoring data of the primary network.
6. An apparatus for thermal station cycle pump control, comprising:
the first acquisition module is used for acquiring real-time monitoring data of the primary network;
the second acquisition module is used for acquiring historical monitoring data of the primary network;
the determining module is used for determining the fault probability of the circulating pump according to the real-time monitoring data, the historical monitoring data and the fault judging condition so as to control the running state of the circulating pump according to the fault probability; wherein the real-time monitoring data and the historical monitoring data both comprise: the water supply temperature, the water return temperature and the opening degree of the electric regulating valve; the historical monitoring data comprises monitoring data in a plurality of historical periods adjacent to the real-time monitoring data;
the determining module is specifically used for determining a supply and return temperature difference average value according to the supply water temperature and the return water temperature in the historical monitoring data, determining a return water average value according to the return water temperature in the historical monitoring data, determining an opening average value according to the opening of the electric regulating valve in the historical monitoring data, and determining a real-time supply and return temperature difference according to the supply water temperature and the real-time return water temperature in the real-time monitoring data;
determining the fault probability of the circulating pump according to the real-time return water temperature, the return water average value, the opening of the real-time electric regulating valve, the opening average value, the real-time supply and return temperature difference, the supply and return temperature difference average value and the fault judgment condition;
wherein the fault determination condition includes: a first condition, a second condition, and a third condition;
the first condition comprises that the difference value between the real-time return water temperature and the return water average value is greater than a temperature threshold value;
the second condition comprises that the ratio of the opening of the real-time electrically-controlled valve to the average value of the opening is larger than a first ratio and smaller than a second ratio;
the third condition comprises that the ratio of the real-time supply and return temperature difference to the average value of the supply and return temperature differences is greater than a third ratio and smaller than a fourth ratio.
7. A terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of the preceding claims 1 to 5 when executing the computer program.
8. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5 above.
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