CN117830033A

CN117830033A - Regional cooling and heating system regulation and control method and device, electronic equipment and storage medium

Info

Publication number: CN117830033A
Application number: CN202410253812.0A
Authority: CN
Inventors: 王朝晖; 旷金国; 许健; 胡勣; 王昭强
Original assignee: Shenzhen Qianhai Energy Technology Development Co ltd
Current assignee: Shenzhen Qianhai Energy Technology Development Co ltd
Priority date: 2024-03-06
Filing date: 2024-03-06
Publication date: 2024-04-05
Anticipated expiration: 2044-03-06
Also published as: CN117830033B

Abstract

The embodiment of the application provides a regional cooling and heating system regulation and control method, a regional cooling and heating system regulation and control device, electronic equipment and a storage medium, and belongs to the technical field of regional cooling and heating system regulation and control. The method comprises the following steps: acquiring actual water supply information, actual operation pressure difference and target process type of each heat exchange station; calculating the load factor based on the actual water supply information to obtain the flow load factor; performing differential pressure calculation based on the target process type and the flow load rate to obtain a minimum differential pressure, and performing differential pressure calculation based on the actual operation differential pressure and the minimum differential pressure to obtain a differential value calculation result; integrating the difference value calculation results corresponding to each heat exchange station to generate a heat exchange station differential pressure difference sequence; selecting a heat exchange station with the smallest difference value from the heat exchange station differential pressure difference sequence as the most unfavorable heat exchange station; and regulating and controlling the operation parameters of the pipeline network water pump based on the difference value of the least favorable heat exchange station. According to the embodiment of the application, the energy efficiency of the regional cooling and heating system can be improved, and the energy waste is reduced.

Description

Regional cooling and heating system regulation and control method and device, electronic equipment and storage medium

Technical Field

The application relates to the technical field of regional cooling and heating system regulation and control, in particular to a regional cooling and heating system regulation and control method, a regional cooling and heating system regulation and control device, electronic equipment and a storage medium.

Background

The regional cooling and heating system is a central heating and cooling system, and can provide a cooling medium or a heating medium or both for a building group in a certain region so as to meet the requirements of refrigerating or heating of users.

At present, the regulation and control of the regional cooling and heating system mainly depends on manual experience or statistical results combined with historical operation data, and cannot be adjusted according to the actual operation condition of each heat exchange station, so that the regional cooling and heating system has low energy efficiency and wastes a large amount of energy.

Therefore, how to improve the energy efficiency of the regional cooling and heating system and reduce the energy waste becomes a technical problem to be solved urgently.

Disclosure of Invention

The main objective of the embodiments of the present application is to provide a method, an apparatus, an electronic device, and a storage medium for controlling a regional cooling and heating system, which aims to improve the energy efficiency of the regional cooling and heating system and reduce the energy waste.

To achieve the above object, a first aspect of an embodiment of the present application provides a method for controlling a regional cooling and heating system, the method including:

Acquiring actual water supply information, actual operation pressure difference and target process type of each heat exchange station; the target process type is determined according to a preset heat exchange station process classification standard;

calculating the load factor based on the actual water supply information to obtain a flow load factor;

performing differential pressure calculation based on the target process type and the flow load rate to obtain a minimum differential pressure, and performing differential pressure calculation based on the actual operation differential pressure and the minimum differential pressure to obtain a differential pressure calculation result;

integrating the difference value calculation results corresponding to each heat exchange station to generate a heat exchange station differential pressure difference sequence;

selecting a heat exchange station with the smallest difference value from the heat exchange station differential pressure difference sequence as the most unfavorable heat exchange station;

and carrying out feedback regulation and control on the operation parameters of the pipe network water pump based on the difference value of the least favorable heat exchange station.

In some embodiments, the heat exchange station process classification basis includes a plurality of alternative process types, and the method further includes, prior to said obtaining actual water supply information, actual operating pressure differential, and target process types for each of the heat exchange stations:

determining a target process type of each heat exchange station;

Wherein the determining the target process type of the heat exchange station comprises:

acquiring valve type data and valve position data of the heat exchange station;

and determining an alternative process type corresponding to the heat exchange station from the process classification standard of the heat exchange station based on the valve type data and the valve position data, and taking the alternative process type corresponding to the heat exchange station as the target process type.

In some embodiments, each of the alternative process types is configured with a corresponding differential pressure calculation parameter; and performing, for each heat exchange station, a service pressure difference calculation based on the target process type and the flow load rate to obtain a minimum service pressure difference, including:

determining the differential pressure calculation parameters corresponding to the target process type based on the process classification standard of the heat exchange station;

and calculating the minimum differential pressure based on the flow load rate and the differential pressure calculation parameter corresponding to the target process type.

In some embodiments, the heat exchange station comprises a first differential pressure control valve, and the differential pressure calculation parameter comprises a control differential pressure and a minimum operating differential pressure of the first differential pressure control valve;

the calculating the minimum differential pressure based on the flow load rate and the differential pressure calculation parameter corresponding to the target process type includes:

When the target process type is a first process type, multiplying the square value of the flow load rate by the minimum working pressure difference of the first pressure difference control valve to obtain the working pressure difference of the first pressure difference control valve;

and performing polymerization calculation on the control pressure difference of the first pressure difference control valve and the working pressure difference of the first pressure difference control valve to obtain the minimum differential pressure.

In some embodiments, the heat exchange station comprises a static balance valve and a second differential pressure control valve, the differential pressure calculation parameters comprising pressure drop data for the static balance valve, control differential pressure for the second differential pressure control valve and a minimum operating differential pressure;

when the target process type is a second process type, multiplying the square value of the flow load rate by the minimum working pressure difference of the second pressure difference control valve to obtain the working pressure difference of the second pressure difference control valve;

multiplying the square value of the flow load rate by the pressure drop data of the static balance valve to obtain the working pressure difference of the static balance valve;

And performing aggregate calculation on the control differential pressure of the second differential pressure control valve, the working differential pressure of the second differential pressure control valve and the working differential pressure of the static balance valve to obtain the minimum differential pressure.

In some embodiments, the heat exchange station comprises a regulator valve and a plate heat exchanger, and the differential pressure calculation parameters comprise: pressure drop data of the regulating valve, plate change pressure drop data of the plate heat exchanger and pipeline comprehensive pressure drop data of the heat exchange station;

when the target process type is a third process type, performing aggregation operation on the pressure drop data of the regulating valve, the plate change pressure drop data and the pipeline comprehensive pressure drop data to obtain design working condition pressure difference data;

and multiplying the square value of the flow load rate by the pressure difference data of the design working condition to obtain the minimum differential pressure.

In some embodiments, the actual water supply information includes an actual operating flow rate, a return water temperature, and a water supply temperature of the heat exchange station; the load factor calculation based on the actual water supply information to obtain a flow load factor comprises the following steps:

Acquiring design working condition cold load data of a heat exchange station;

calculating to obtain actual operation cold load data of the heat exchange station based on the actual operation flow, the backwater temperature and the water supply temperature;

and calculating the cold load rate of the heat exchange station based on the actual running cold load data and the design working condition cold load data, and taking the cold load rate of the heat exchange station as the flow load rate.

To achieve the above object, a second aspect of the embodiments of the present application provides a regional cooling and heating system regulation device, which includes:

the data acquisition module is used for acquiring the actual water supply information, the actual operation pressure difference and the target process type of each heat exchange station; the target process type is determined according to a preset heat exchange station process classification standard;

the flow load rate calculation module is used for calculating the load rate based on the actual water supply information to obtain the flow load rate;

the differential pressure difference calculation module is used for calculating the differential pressure for each heat exchange station based on the target process type and the flow load rate to obtain a minimum differential pressure for use, and calculating the differential value based on the actual operation differential pressure and the minimum differential pressure for use to obtain a differential value calculation result;

The difference integration module is used for integrating the difference calculation results corresponding to each heat exchange station and generating a heat exchange station differential pressure difference sequence;

the least favorable heat exchange station screening module is used for selecting a heat exchange station with the smallest difference value from the heat exchange station differential pressure difference sequence as the least favorable heat exchange station;

and the feedback regulation and control module is used for carrying out feedback regulation and control on the operation parameters of the pipeline network water pump based on the difference value of the least favorable heat exchange station.

To achieve the above object, a third aspect of the embodiments of the present application proposes an electronic device, which includes a memory and a processor, the memory storing a computer program, the processor implementing the method according to the first aspect when executing the computer program.

To achieve the above object, a fourth aspect of the embodiments of the present application proposes a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method of the first aspect.

The method, the device, the electronic equipment and the storage medium for regulating and controlling the regional cooling and heating system are provided by the application, and the actual water supply information, the actual operation pressure difference and the target process type of each heat exchange station are obtained; the target process type is determined according to a preset heat exchange station process classification standard; calculating the load factor based on the actual water supply information to obtain the flow load factor; performing differential pressure calculation based on the target process type and the flow load rate to obtain a minimum differential pressure, and performing differential pressure calculation based on the actual operation differential pressure and the minimum differential pressure to obtain a differential value calculation result; integrating the difference value calculation results corresponding to each heat exchange station to generate a heat exchange station differential pressure difference sequence; selecting a heat exchange station with the smallest difference value from the heat exchange station differential pressure difference sequence as the most unfavorable heat exchange station; and carrying out feedback regulation and control on the operation parameters of the pipeline network water pump based on the difference value of the least favorable heat exchange station. The method for calculating the minimum utilization pressure difference according to the process type of the heat exchange station is provided, so that the least adverse heat exchange station is determined, and the operation parameters of the pipeline network water pump are adjusted according to the pressure difference of the least adverse heat exchange station, so that the operation state of the pipeline network of the regional cooling and heating system is adjusted, the operation condition of the pipeline network of the regional cooling and heating system is optimized, the energy efficiency of the regional cooling and heating system is improved, and the energy waste is reduced.

Drawings

FIG. 1 is a flow chart of a method for regulating and controlling a regional cooling and heating system according to an embodiment of the present application;

FIG. 2 is a schematic view of the process type of a heat exchange station provided in an embodiment of the present application;

FIG. 3 is a flow chart of a method for regulating a district cooling heating system according to another embodiment of the present application;

fig. 4 is a flowchart of step S102 in fig. 1;

fig. 5 is a flowchart of step S103 in fig. 1;

fig. 6 is a flowchart of step S402 in fig. 5;

fig. 7 is a flowchart of step S402 in fig. 5;

fig. 8 is a flowchart of step S402 in fig. 5;

FIG. 9 is a schematic diagram of a relationship between a minimum differential pressure and a flow load rate for a heat exchange station process type according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a control device for a district cooling and heating system according to an embodiment of the present disclosure;

fig. 11 is a schematic hardware structure of an electronic device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It should be noted that although functional block division is performed in a device diagram and a logic sequence is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.

First, several nouns referred to in this application are parsed:

the regional cooling and heating system (District Heating and Cooling, DHC) is a central heating and cooling system, and can provide a refrigerant, a heating medium, or both for a building group in a certain region, so as to meet the cooling or heating requirements of users.

Flow duty ratio, which is the ratio of flow through a heat exchanger to a design flow at a point in time, is typically used to evaluate the operating efficiency of the heat exchanger. The higher the flow load rate is, the higher the operation efficiency of the heat exchanger is, and the heat demand of the building can be better met.

The cold load rate of the heat exchange station refers to the ratio of the cold load processed by the heat exchange station to the design cold load, and is an important parameter for evaluating the processing capacity of the heat exchange station.

Differential pressure, in a heat exchange station, refers to the pressure difference between the primary and secondary networks, which is used to facilitate the transfer of heat, i.e. from the primary network to the secondary network. The heat exchange efficiency and the heating effect of the heat exchange station are directly affected by the differential pressure. If the differential pressure is too large, the primary network pressure may be too high, the abrasion and energy consumption of the equipment may be increased, and if the differential pressure is too small, the heat transmission efficiency may be low, and the heating effect may be affected.

The minimum differential pressure is the minimum pressure differential required to ensure proper operation of the heat exchange station. This parameter is an important basis for the design of the heat exchange station, and can ensure the stability and reliability of the operation of the heat exchange station. If the actual service pressure difference is smaller than the minimum service pressure difference, the heat exchange efficiency is possibly low, and even the heat exchanger is blocked, and the heating effect is affected. The minimum differential pressure is a reference for the design of the heat exchange station, and the differential pressure in actual operation needs to be adjusted on the premise of meeting the minimum differential pressure so as to achieve the best heat exchange effect and heating effect. In actual operation, if the differential pressure is found to be too small, measures should be taken in time to adjust so as to ensure the stable operation of the heat exchange station.

The least unfavorable heat exchange station refers to the heat exchange station with the worst heat exchange effect and the most difficult heat supply in the regional cooling and heating system. Typically at the end of a heating system, the number of buildings served is small or remote from the heat source, resulting in limited heating capacity. In order to ensure the stability and heating effect of the entire heating system, special attention and optimization of the most disadvantageous heat exchange station are required to improve its heat exchange efficiency and heating capacity.

Pressure drop data, which refers to pressure drop data of each heat exchange station in the system. Pressure drop data can be obtained by measuring pressure changes of a pipe network, and is an important parameter for evaluating system stability and performance. Through analysis of the pressure drop data, the resistance and flow distribution condition of the pipe network can be known, and potential problems such as pipe network blockage, equipment failure and the like can be found and solved. The monitoring and analysis of the pressure drop data has important significance for guaranteeing the normal operation and the heat supply effect of the heat supply system.

The comprehensive pressure drop data of the heat exchange station pipeline refers to pressure reduction generated by fluid flow resistance in a pipeline system in the heat exchange station. Specifically, when a fluid (typically water or a heating medium) flows in the pipeline system, the fluid is affected by factors such as friction and positive force, so that the pressure gradually decreases, and the value of the pressure decrease is the comprehensive pressure drop data of the pipeline.

Design conditions, which are assumed to ensure proper operation under predetermined operating conditions when designing a particular device, equipment or system. These predetermined operating conditions are typically the most severe operating conditions of the system, and design conditions such as maximum flow, maximum pressure, maximum power, etc. are typically used to evaluate the performance, efficiency, and safety factor of the system. In this state, the device or system must be able to meet its predetermined performance criteria and design requirements. If problems occur during design conditions, this may affect the proper operation of the entire device, apparatus or system.

At present, the regulation and control of the regional cooling and heating system mainly depends on manual experience or the statistical result of the combination of historical operation big data, the manual experience is used for regulating and controlling the system, and the accuracy of regulation and control is difficult to grasp; the statistics is performed by combining the historical operation data, firstly, the number of samples of the operation data is required to be enough and accurate, however, the actual use condition may be greatly different from the statistical result, when the operation data is changed, for example, the use area or the residence rate of a user is changed, the number of samples of the operation data is insufficient, a large data model cannot be guided, and the accuracy of system regulation is further affected. That is, the two methods cannot be adjusted according to the actual operation condition of each heat exchange station, which results in low energy efficiency of the regional cooling and heating system and great energy waste.

Based on this, the embodiment of the application provides a method and a device for regulating and controlling a regional cooling and heating system, electronic equipment and a storage medium, which aim to improve the energy efficiency of the regional cooling and heating system and reduce the energy waste.

The method, the device, the electronic equipment and the storage medium for regulating and controlling the regional cooling and heating system provided by the embodiment of the application are specifically described through the following embodiments, and the method for regulating and controlling the regional cooling and heating system in the embodiment of the application is described first.

The embodiment of the application provides a regional cooling and heating system regulation and control method, and relates to the technical field of regional cooling and heating system regulation and control. The regional cooling and heating system regulation and control method provided by the embodiment of the application can be applied to a terminal, a server side and software running in the terminal or the server side.

In some embodiments, the terminal may be a smart phone, tablet, notebook, desktop, etc.; the server side can be configured as an independent physical server, and can also be configured as a server cluster or a distributed system formed by a plurality of physical servers; the software may be an application or the like for realizing the regulation method of the regional cooling and heating system, but is not limited to the above form.

The subject application is operational with numerous general purpose or special purpose computer system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like. The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

In some embodiments, the district cooling and heating system includes a pipe network water pump, a plurality of heat exchange stations, and a water supply line, the pipe network water pump and the plurality of heat exchange stations being connected by the water supply line,

The pipe network water pump conveys cold water to the heat exchange station through the water supply pipeline, after heat exchange is carried out through the heat exchange station, hot water is conveyed to the user place, the hot water is changed into cold water after being used in the user place, and the cold water reenters the heat exchange station through the water supply pipeline and the pipe network water pump to form a closed cycle, so that the utilization efficiency of water or refrigerant is improved.

The heat exchange stations are connected in parallel, so that the installation and the maintenance are convenient;

the number of the pipe network water pumps is multiple, and the running frequency of the pipe network water pumps can be adjusted or the number of the pipe network water pumps can be increased or decreased so as to meet the requirement of simultaneous and large-scale use in the regional cooling and heating system.

The water used in the regional cooling and heating system is usually softened water, so that the air can be effectively isolated, pipelines cannot be corroded, and the service life of the pipelines is prolonged; other liquids may be used, and are not limited thereto.

Fig. 1 is an optional flowchart of a method for controlling a district cooling and heating system according to an embodiment of the present application, where the method in fig. 1 may include, but is not limited to, steps S101 to S106.

Step S101, acquiring actual water supply information, actual operation pressure difference and target process type of each heat exchange station; the target process type is determined according to a preset heat exchange station process classification standard;

Step S102, calculating a load factor based on actual water supply information to obtain a flow load factor;

step S103, performing differential pressure calculation based on the target process type and the flow load rate to obtain a minimum differential pressure, and performing differential calculation based on the actual operation differential pressure and the minimum differential pressure to obtain a differential calculation result;

step S104, integrating the difference value calculation result corresponding to each heat exchange station to generate a heat exchange station differential pressure difference sequence;

step S105, selecting a heat exchange station with the smallest difference value from the heat exchange station differential pressure difference sequence as the most unfavorable heat exchange station;

and step S106, the operation parameters of the pipeline network water pump are subjected to feedback regulation and control based on the difference value of the least favorable heat exchange station.

Step S101 to step S106 illustrated in the embodiment of the present application, by acquiring actual water supply information, actual operation pressure difference, and target process type of each heat exchange station; the target process type is determined according to a preset heat exchange station process classification standard; calculating the load factor based on the actual water supply information to obtain the flow load factor; performing differential pressure calculation based on the target process type and the flow load rate to obtain a minimum differential pressure, and performing differential pressure calculation based on the actual operation differential pressure and the minimum differential pressure to obtain a differential value calculation result; integrating the difference value calculation results corresponding to each heat exchange station to generate a heat exchange station differential pressure difference sequence; selecting a heat exchange station with the smallest difference value from the heat exchange station differential pressure difference sequence as the most unfavorable heat exchange station; and carrying out feedback regulation and control on the operation parameters of the pipeline network water pump based on the difference value of the least favorable heat exchange station. The method for calculating the minimum utilization pressure difference according to the process type of the heat exchange station is provided, so that the least adverse heat exchange station is determined, and the operation parameters of the pipeline network water pump are adjusted according to the pressure difference of the least adverse heat exchange station, so that the operation state of the pipeline network of the regional cooling and heating system is adjusted, the operation condition of the pipeline network of the regional cooling and heating system is optimized, the energy efficiency of the regional cooling and heating system is improved, and the energy waste is reduced.

In some embodiments, the process of the heat exchange station may be divided into three forms according to the valve type and the valve position of the heat exchange station, including a differential pressure control valve constant plate switching branch differential pressure, a differential pressure control valve constant regulating valve differential pressure, no differential pressure control valve, and the like, where the first form may be divided into a configuration static balance valve and a non-capital static balance valve, and the second form and the third form may be divided into a regulating valve disposed on the plate switching branch and the main pipe, so as to divide the process of the heat exchange station into six types, specifically see table 1:

the first form comprises a process 1 and a process 2, wherein the flow regulation of each heat exchange station in a pipe network can be decoupled, and the flow control of each heat exchange station is mutually independent;

the second form comprises a process 3 and a process 4, which can decouple the flow regulation of each plate exchange branch in the heat exchange station, the flow control of each plate exchange is mutually independent, and the flow control of each heat exchange station can be mutually independent;

the third form comprises a process 5 and a process 6, wherein a high adjustable ratio regulating valve is adopted, and any flow load rate required by plate change can be obtained under the condition of pressure difference of water supply and return of a pipe network of any heat exchange station.

Referring to fig. 2, fig. 2 is a schematic diagram of a process type of a heat exchange station, including fig. 2 (a) - (f), wherein fig. 2 (a) is a schematic diagram of process 1, fig. 2 (b) is a schematic diagram of process 2, fig. 2 (c) is a schematic diagram of process 3, fig. 2 (d) is a schematic diagram of process 4, fig. 2 (e) is a schematic diagram of process 5, and fig. 2 (f) is a schematic diagram of process, wherein the solid line in fig. 2 represents water supply and the dashed line represents water return.

TABLE 1 Heat exchange station Process Classification

In the calculation model used in the application, the six process types are divided into three alternative process types, so that a heat exchange station process classification benchmark is formed.

In some embodiments, the heat exchange station process classification benchmark comprises three alternative process types, which may be subdivided according to the heat exchange station process classification conditions shown in table 1; wherein the first alternative process type is a first process type, including process 3 and process 4; the second alternative process type is a second process type, comprising process 1 and process 2; the third alternative process type is a third process type, including process 5 and process 6.

In step S101 of some embodiments, the actual water supply information and the actual operation pressure difference of the heat exchange station may be obtained in real time through the collecting sensor of the heat exchange station.

Referring to fig. 3, before step S101 in some embodiments, the method for controlling the cooling and heating system in a region may further include, but is not limited to, the steps of:

determining a target process type of the heat exchange station for each heat exchange station;

wherein, determining the target process type of the heat exchange station may include, but is not limited to including, step S201 to step S202:

Step S201, valve type data and valve position data of a heat exchange station are obtained;

step S202, determining an alternative process type corresponding to the heat exchange station from the process classification standard of the heat exchange station based on the valve type data and the valve position data, and taking the alternative process type corresponding to the heat exchange station as a target process type.

Step S201 to step S202 illustrated in the embodiment of the present application are performed by acquiring valve type data and valve position data of the heat exchange station; and determining the alternative process type corresponding to the heat exchange station from the process classification standard of the heat exchange station based on the valve type data and the valve position data, and taking the alternative process type corresponding to the heat exchange station as the target process type, so that the heat exchange station is classified in advance, and the target process type corresponding to the heat exchange station can be quickly confirmed when regulation and control are carried out.

The valve type data of the heat exchange station includes, but is not limited to, which types of valves and corresponding numbers are used, such as ball valves, V-ball valves, seat valves, electric butterfly valves, and the like.

The valve position data is a position where each kind of valve is installed in the heat exchange station, for example, the valve is installed on a plate branch, or the valve is installed on a manifold, not limited thereto.

In step S202 of some embodiments, the valve type data and the valve position data are matched with the alternative process types in the process classification standard of the heat exchange station, so as to determine which alternative process type the heat exchange station is, and further, the alternative process type corresponding to the heat exchange station is used as the target process type.

In some embodiments, the actual water supply information includes an actual operating flow rate of the heat exchange station, a return water temperature, and a water supply temperature.

The actual water supply information can be acquired in real time through the heat exchange station energy meter for the actual running flow, the backwater temperature and the water supply temperature of the pipe network in the heat exchange station.

The heat exchange station energy meter may be also referred to as a cold meter or a heat meter, and is not limited thereto.

Referring to fig. 4, in some embodiments, step S102 may include, but is not limited to, steps S301 to S303:

step S301, obtaining design working condition cold load data of a heat exchange station;

step S302, calculating to obtain actual operation cold load data of the heat exchange station based on actual operation flow, backwater temperature and water supply temperature;

step S303, calculating the cold load rate of the heat exchange station based on the actual operation cold load data and the design working condition cold load data, and taking the cold load rate of the heat exchange station as the flow load rate.

In the steps S301 to S303 illustrated in the embodiments of the present application, actual operation cold load data of the heat exchange station is obtained by calculation based on the actual operation flow, the return water temperature and the water supply temperature, the actual operation cold load data and the design working condition cold load data are calculated to obtain a heat exchange station cold load rate, and the heat exchange station cold load rate is used as the flow load rate, so that the flow load rate of the heat exchange station is determined, and the subsequent judgment of the working state of the heat exchange station according to the flow load rate is facilitated.

It should be noted that, the design condition cooling load data of the heat exchange station is a theoretical design value of the heat exchange station, which can be directly obtained without calculation.

In some embodiments, step S302, for the heat exchange station, the actual operating cold load data may be calculated by equation (1):

（1）；

wherein,the unit is KW for the actual running cold load data of the ith heat exchange station; />For the actual operating flow of the ith heat exchange station, the unit is m ³ /h；/>Is the density of water, the unit is kg/m ³ ；/>Is the specific heat capacity of water; />For the return water temperature of the ith heat exchange station, < ->The water supply temperature for the ith heat exchange station is given in c.

In step S303 of some embodiments, it is assumed thatAnd- >All operate according to the design value, the cold load rate of the heat exchange station can be equal to the flow load rate, so that the cold load data is +.>And actual operating cold load dataObtaining the cold load rate of the heat exchange station, and further obtaining the flow load rate, as shown in a formula (2):

（2）；

wherein,is the flow load rate of the heat exchange station.

In some embodiments, step S102 may further include, but is not limited to, the following steps:

acquiring the design working condition operation flow of the heat exchange station;

and calculating to obtain the flow load rate based on the actual operation flow and the design working condition operation flow.

The specific calculation process is shown in the formula (3):

（3）；

wherein,the unit of the operating flow is m for the design working condition of the heat exchange station ³ /h。

In some embodiments, each alternative process type is configured with a corresponding differential pressure calculation parameter;

referring to fig. 5, in some embodiments, step S103 may include, but is not limited to, steps S401 to S402:

step S401, determining differential pressure calculation parameters corresponding to the target process type based on the process classification standard of the heat exchange station;

step S402, calculating to obtain the minimum differential pressure based on the flow load rate and the differential pressure calculation parameters corresponding to the target process type.

In the steps S401 to S402 illustrated in the embodiments of the present application, the minimum service pressure difference is calculated based on the flow load rate and the pressure difference calculation parameter corresponding to the target process type by determining the pressure difference calculation parameter corresponding to the target process type, so that the minimum service pressure difference can be calculated according to the process type of the heat exchange station, the interpretability of the calculation process can be improved, the statistical analysis on the historical operation data is not required, the calculation resources are saved, and the calculation efficiency is improved.

In step S401 of some embodiments, a mapping relationship exists between each alternative process type and the corresponding differential pressure calculation parameter, and when confirming which alternative process type a certain heat exchange station specifically belongs to, the differential pressure calculation parameter can be quickly confirmed, so that the calculation efficiency is improved.

Under the condition, the calculation parameter of the minimum differential pressure is only one independent variable of the flow load rate, so that the calculation efficiency can be improved, and the calculation frequency can be further improved, thereby being capable of regulating and controlling the regional cooling and heating system in real time, optimizing the pipe network operation condition of the regional cooling and heating system, improving the energy efficiency of the regional cooling and heating system and reducing the energy waste.

In some embodiments, after the regional cooling and heating system operates for a period of time, the resistance coefficient of the pipeline of the heat exchange station changes, for example, the plate exchange is blocked, the correction coefficient of the differential pressure calculation parameter can be obtained by measuring the pressure distribution data of the heat exchange station at a certain moment, and the differential pressure calculation parameter in the process of calculating the minimum supported differential pressure is corrected based on the correction coefficient of the differential pressure calculation parameter, so that the system can better adapt to the system operation states under different conditions, optimize the pipe network operation condition of the regional cooling and heating system, and improve the accuracy of system regulation.

In addition, the regulation and control method of the regional cooling and heating system provided by the embodiment of the application can accurately calculate the minimum service pressure difference of the heat exchange station without long-time accumulation of a large amount of data, and improves the accuracy of the calculation process.

In some embodiments, when the target process type is a first process type, i.e., process 3 and process 4, the heat exchange station includes a first differential pressure control valve for constantly regulating the differential pressure across the valve; the differential pressure calculation parameters comprise the control differential pressure of the first differential pressure control valve and the minimum working differential pressure;

referring to fig. 6, in some embodiments, step S402 may further include, but is not limited to, steps S501 to S502:

step S501, when the target process type is the first process type, multiplying the square value of the flow load rate by the minimum working pressure difference of the first pressure difference control valve to obtain the working pressure difference of the first pressure difference control valve;

step S502, performing aggregate calculation on the control differential pressure of the first differential pressure control valve and the working differential pressure of the first differential pressure control valve to obtain the minimum differential pressure.

In step S501 to step S502 illustrated in the embodiment of the present application, when the target process type is the first process type, multiplying the square value of the flow load rate by the minimum working pressure difference of the first pressure difference control valve to obtain the working pressure difference of the first pressure difference control valve; and performing aggregate calculation on the control pressure difference of the first pressure difference control valve and the working pressure difference of the first pressure difference control valve to obtain the minimum service pressure difference, and improving the calculation efficiency of the minimum service pressure difference.

When the target process type is the first process type, the required parameters include a control differential pressure of the first differential pressure control valve, a minimum working differential pressure and a flow load rate, and the specific calculation process is as follows:

（4）；

wherein,for the minimum differential pressure of the heat exchange station of the first process type, < >>Is a first differential pressure controlControl pressure difference of valve, valve>The unit is m water column, which is also the pressure unit, and 1m water column is equal to 9.8kPa.

The control pressure difference of the first pressure difference control valveAnd the data is preset, and calculation is not needed.

The control differential pressure of the first differential pressure control valve is the differential pressure for both ends of the constant regulating valve.

The calculating process of the minimum working pressure difference of the first differential pressure control valve may include, but is not limited to, the following steps:

acquiring the design working condition flow of the heat exchange station and the maximum flow coefficient of the first differential pressure control valve;

and performing differential pressure calculation based on the maximum flow coefficient and the design working condition flow of the first differential pressure control valve to obtain the minimum working differential pressure of the first differential pressure control valve.

The specific calculation process is shown in the formula (5):

（5）；

wherein,the unit is m, which is the maximum flow coefficient of the valve core of the first differential pressure valve when the valve core is fully opened ³ /h；/>The unit of the operating flow is m for the design working condition of the heat exchange station ³ /h。

The control pressure difference of the first pressure difference control valveMinimum operating pressure difference of the first differential pressure control valve +.>All are data under the design working condition.

In some embodiments, when the target process type is a second process type, i.e., process 1 and process 2, the heat exchange station includes a static balance valve and a second differential pressure control valve for controlling differential pressure across the constant plate switching leg, the differential pressure calculation parameters include pressure drop data of the static balance valve, a control differential pressure of the second differential pressure control valve, and a minimum operating differential pressure;

referring to fig. 7, in some embodiments, step S402 includes, but is not limited to, steps S601 to S603:

step S601, when the target process type is the second process type, multiplying the square value of the flow load rate by the minimum working pressure difference of the second pressure difference control valve to obtain the working pressure difference of the second pressure difference control valve;

step S602, multiplying the square value of the flow load rate by pressure drop data of the static balance valve to obtain the working pressure difference of the static balance valve;

and step S603, performing aggregate calculation on the control differential pressure of the second differential pressure control valve, the working differential pressure of the second differential pressure control valve and the working differential pressure of the static balance valve to obtain the minimum differential pressure.

In step S601 to step S603 illustrated in the embodiment of the present application, when the target process type is the second process type, multiplying the square value of the flow load rate by the minimum working pressure difference of the second pressure difference control valve to obtain the working pressure difference of the second pressure difference control valve; multiplying the square value of the flow load rate by the pressure drop data of the static balance valve to obtain the working pressure difference of the static balance valve; and performing aggregate calculation on the control differential pressure of the second differential pressure control valve, the working differential pressure of the second differential pressure control valve and the working differential pressure of the static balance valve to obtain the minimum utilization differential pressure, and improving the calculation efficiency of the minimum utilization differential pressure.

Specifically, when the target process type is the second process type, the required parameters include the control differential pressure of the second differential pressure control valve, the minimum working differential pressure, the pressure drop data of the static balance valve and the flow load rate, and the specific calculation process is as follows:

（6）；

wherein,for the minimum differential pressure of the heat exchange station of the second process type, < >>For the pressure drop data of the static balance valve under the design working condition, < + >>Is the control differential pressure of the second differential pressure control valve,the unit is m water column, which is also the pressure unit, and 1m water column is equal to 9.8kPa.

The pressure drop data of the static balance valveAnd the data is preset, and calculation is not needed.

It should be noted that, the control differential pressure of the second differential pressure control valve is the differential pressure for the two ends of the constant plate switching branch. The calculating process of the minimum working pressure difference of the second differential pressure control valve may include, but is not limited to, the following steps:

acquiring the design working condition flow of the heat exchange station and the maximum flow coefficient of the second differential pressure control valve;

and performing differential pressure calculation based on the maximum flow coefficient and the design working condition flow of the second differential pressure control valve to obtain the minimum working differential pressure of the second differential pressure control valve.

The specific calculation process is shown in the formula (7):

（7）；

wherein,the unit is m, which is the maximum flow coefficient of the second differential pressure valve core when the second differential pressure valve core is fully opened ³ /h；/>The unit of the operating flow is m for the design working condition of the heat exchange station ³ /h。

The pressure drop data of the static balance valveControl pressure difference of the second pressure difference control valveMinimum operating pressure difference of the second differential pressure control valve +.>All are data under the design working condition.

It should be noted that, for the pipe network with the increasing number of users and the changing residence rate of users, the pressure drop data of the static balance valveRequiring constant adjustment at different times.

It should be noted that the second process type includes process 1 and process 2, in which the heat exchange station of process 2 is not provided with a static balance valve, so that when the minimum service pressure difference is calculated for process 2, in equation (6), pressure drop data of the static balance valve at the time of design operationFor 0, specifically, formula (8) can be obtained:

（8）；

in the first process type and the second process type, the control differential pressure of the first differential pressure control valve, the control differential pressure of the minimum working differential pressure control valve, and the control differential pressure of the second differential pressure control valve are different, and specifically, the calculation is required according to the actual process type.

In some embodiments, when the target process type is a third process type, the heat exchange station includes a regulator valve and a plate heat exchanger, and the differential pressure calculation parameters include: pressure drop data of the regulating valve, plate heat exchange pressure drop data of the plate heat exchanger and pipeline comprehensive pressure drop data of the heat exchange station;

referring to fig. 8, in some embodiments, step S402 may include, but is not limited to, steps S701 to S702:

step S701, when the target process type is the third process type, performing aggregation operation on pressure drop data of the regulating valve, plate change pressure drop data and pipeline comprehensive pressure drop data to obtain design working condition pressure difference data;

And step S702, multiplying the square value of the flow load rate by the pressure difference data of the design working condition to obtain the minimum differential pressure.

In the step S701 to step S702 illustrated in the embodiment of the present application, when the target process type is the third process type, the pressure drop data of the regulating valve, the plate change pressure drop data and the pipeline integrated pressure drop data are aggregated to obtain the design working condition pressure difference data, and the square value of the flow load rate is multiplied by the design working condition pressure difference data to obtain the minimum service pressure difference, so that the calculation efficiency of the minimum service pressure difference can be improved.

When the target process type is the third process type, namely processes 5 and 6, and for processes 5 and 6, the ideal situation that the use coefficient is 1 when the pipe network is used is that the opening of the regulating valve can maintain the opening of the design working condition, the pressure drop proportion of each part in the heat exchange station is unchanged, and additional pressure drop is not required to be consumed by reducing the opening of the regulating valve, so that parameters required for calculating the minimum service pressure difference comprise pressure drop data of the regulating valve, plate change pressure drop data of the plate heat exchanger and pipeline comprehensive pressure drop data and flow load rate of the heat exchange station, and the specific calculation process is as follows:

（9）；

wherein,for the minimum differential pressure of the heat exchange station of the third process type, < > >For regulating the pressure drop data of the valve, +.>For plate heat exchanger plate heat drop data, +.>The integrated pressure drop data for the heat exchange station is given in m water columns, also pressure units, 1m water column being equal to 9.8kPa.

Pressure drop data of the regulator valvePlate heat exchanger pressure drop dataPipeline comprehensive pressure drop data of heat exchange station>All are data under the design working condition.

It should be noted that the heat exchange station at least includes a regulating valve and a plate heat exchanger, and in the first process type and the second process type, the adopted calculation parameters do not relate to the pressure drop data of the regulating valve, the plate pressure drop data of the plate heat exchanger and the pipeline integrated pressure drop data of the heat exchange station, and do not represent that the heat exchange station of the first process type and the second process type does not include a regulating valve and a plate heat exchanger, i.e. the heat exchange station of the first process type and the second process type includes a regulating valve and a plate heat exchanger.

Referring to fig. 9, fig. 9 is a schematic diagram of a relationship between a minimum differential pressure and a flow load rate under a process type of a heat exchange station provided in an embodiment of the present application, and it can be seen from fig. 9:

for process 1, as the flow increases, the additional pressure differential that the static balance valve needs to consume increases, reaching a maximum at design conditions, process 1 being the most efficient The portion of the small capital differential pressure that is increased over process 2 is the static balance valve differential pressure. According to the formula (6), the minimum differential pressure variation range is 0-. According to the setting purpose, the setting range of the static balance valve can cover the lift range of the external network pump, taking the design working condition static balance valve pressure difference shown in fig. 9 as an example, and the process 1 is 20m more than the minimum service pressure difference of the process 2 in the design working condition.

For processes 3 and 4, according to formula (4), the differential pressure control valve only constantly adjusts the differential pressure of the valve, and on the basis of ensuring enough differential pressure control valve working differential pressure, the minimum differential pressure of the heat exchange station is reduced along with the reduction of the flow load rate, and at the 10% flow load rate, the minimum differential pressure of the heat exchange station is 2m, and compared with the process 1, the differential pressure of 6m is reduced. Thus, for processes 3 and 4, at small load rates, the external net pump operating frequency can be reduced.

For processes 5 and 6, at 5% flow load rate, the minimum tariff pressure differential becomes 0m. The two processes can adopt lower operation frequency when the load rate of the flow is small, and a more energy-saving operation mode is realized. It should be noted that fig. 9 is merely illustrative, and the specific parameters used in each process are related to the design of the heat exchange station and the type of equipment, and are not limited thereto.

In step S103 of some embodiments, further comprising: and carrying out difference calculation based on the actual operation pressure difference and the minimum service pressure difference to obtain a difference calculation result, wherein the specific calculation process is as follows:

（10）；

wherein,the deviation of the pressure difference of the water supply and return pipe network of the ith heat exchange station, namely a difference value calculation result,for the actual operating pressure difference>The minimum differential pressure for the ith heat exchange station is given in m water columns, also pressure units, 1m water column being equal to 9.8kPa.

Finally, integrating the difference value calculation results corresponding to each heat exchange station to generate a heat exchange station differential pressure difference sequence:；

in step S105 of some embodiments, a heat exchange station with the smallest difference value is selected from the heat exchange station differential pressure difference sequence as the most unfavorable heat exchange station, and the result is:

（11）；

wherein,the corresponding heat exchange station is the most unfavorable heat exchange station;

in step S106 of some embodiments, the operation of the water pump of the pipe network is determined by the pressure difference feedback of the least favorable heat exchange station, when the pressure difference of the least favorable heat exchange station does not meet the flow requirement, the control system obtains a feedback signal, and adjusts the operation parameter of the water pump of the pipe network until the pressure difference of the least favorable heat exchange station can meet the flow regulation requirement of the heat exchange station.

Based on differences in the most unfavourable heat exchange stations And the operation parameters of the pipeline network water pump are subjected to feedback regulation and control, so that the pressure difference of all heat exchange stations in the regional cooling and heating system can be larger than or equal to the minimum service pressure difference, and the energy efficiency of the regional cooling and heating system is improved and the energy waste is reduced under the condition that the temperature meets the requirement.

Compared with a method for adjusting based on manual experience or a statistical result combined with historical operation big data, the method has more basis on the accuracy of regulation and control; and large-family data does not need to be operated in combination with history, so that the adjustment responsiveness is better.

It should be noted that the operation parameters of the pipe network water pump include, but are not limited to, an operation frequency or an operation number of the pipe network water pump.

In particular, ifThe number is negative, which indicates that the frequency of the water pump of the cold and heat source needs to be increased or the number of the water pump is increased;

if it isThe number of the water pumps is positive, and the frequency of the water pumps for cold and heat sources needs to be reduced or the number of the water pumps needs to be reduced.

After step S106 of some embodiments, the regional cooling and heating system regulation method further includes:

and judging whether the actual operation pressure difference of the least favorable heat exchange station meets the corresponding minimum service pressure difference (greater than or equal to). If not, the method for regulating and controlling the regional cooling and heating system provided by the embodiment of the application is re-executed.

In addition, when the preset regulation time interval requirement is met, the regulation method of the regional cooling and heating system provided by the embodiment of the application is re-executed, and the least favorable heat exchange station is updated, so that the regional cooling and heating system is dynamically and real-timely regulated and controlled, the pipe network operation condition of the regional cooling and heating system is optimized, the energy efficiency of the regional cooling and heating system is improved, and the energy waste is reduced.

According to the method and the device for calculating the minimum differential pressure of the heat exchange station, the process types of the heat exchange station can be classified, the minimum differential pressure of the heat exchange station is calculated according to the process types of the heat exchange station, the interpretability of the calculation process is improved, statistical analysis on historical operation data is not needed, calculation resources are saved, and the calculation efficiency is improved. And the most unfavorable heat exchange station is determined, and the operation parameters of the pipeline network water pump are adjusted according to the pressure difference of the most unfavorable heat exchange station, so that the pressure difference of all the heat exchange stations in the regional cooling and heating system can be larger than or equal to the minimum utilization pressure difference, and the energy efficiency of the regional cooling and heating system is improved and the energy waste is reduced under the condition that the temperature meeting requirements is ensured.

Referring to fig. 10, an embodiment of the present application further provides a device for controlling a regional cooling and heating system, which can implement the method for controlling a regional cooling and heating system, where the device includes:

the data acquisition module 1001 is configured to acquire actual water supply information, an actual operation pressure difference, and a target process type of each heat exchange station; the target process type is determined according to a preset heat exchange station process classification standard;

the flow load factor calculation module 1002 is configured to perform load factor calculation based on actual water supply information, so as to obtain a flow load factor;

the differential pressure difference calculation module 1003 is configured to perform, for each heat exchange station, a differential pressure calculation based on the target process type and the flow load rate, to obtain a minimum differential pressure, and perform a differential calculation based on the actual operation differential pressure and the minimum differential pressure, to obtain a differential calculation result;

the difference integrating module 1004 is configured to integrate the difference calculation result corresponding to each heat exchange station to generate a heat exchange station differential pressure difference sequence;

a most adverse heat exchange station screening module 1005, configured to select a heat exchange station with the smallest difference value from the heat exchange station differential pressure difference sequence as the most adverse heat exchange station;

and the feedback regulation and control module 1006 is used for carrying out feedback regulation and control on the operation parameters of the pipeline network water pump based on the difference value of the least favorable heat exchange station.

The specific implementation of the regional cooling and heating system control device is basically the same as the specific embodiment of the regional cooling and heating system control method, and is not described herein again.

The embodiment of the application also provides electronic equipment, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the regional cooling and heating system regulation method when executing the computer program. The electronic equipment can be any intelligent terminal including a tablet personal computer, a vehicle-mounted computer and the like.

Referring to fig. 11, fig. 11 illustrates a hardware structure of an electronic device according to another embodiment, the electronic device includes:

the processor 1101 may be implemented by a general purpose CPU (central processing unit), a microprocessor, an application specific integrated circuit (ApplicationSpecificIntegratedCircuit, ASIC), or one or more integrated circuits, etc. for executing related programs to implement the technical solutions provided by the embodiments of the present application;

the memory 1102 may be implemented in the form of read-only memory (ReadOnlyMemory, ROM), static storage, dynamic storage, or random access memory (RandomAccessMemory, RAM). The memory 1102 may store an operating system and other application programs, and when the technical solutions provided in the embodiments of the present application are implemented by software or firmware, relevant program codes are stored in the memory 1102, and the processor 1101 invokes a regional cooling and heating system regulation method for executing the embodiments of the present application;

An input/output interface 1103 for implementing information input and output;

the communication interface 1104 is configured to implement communication interaction between the device and other devices, and may implement communication in a wired manner (e.g. USB, network cable, etc.), or may implement communication in a wireless manner (e.g. mobile network, WIFI, bluetooth, etc.);

bus 1105 transmits information between the various components of the device (e.g., processor 1101, memory 1102, input/output interface 1103, and communication interface 1104);

wherein the processor 1101, memory 1102, input/output interface 1103 and communication interface 1104 enable communication connection therebetween within the device via bus 1105.

The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the regional cooling and heating system regulation method when being executed by a processor.

The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located relative to the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The method, the device, the electronic equipment and the storage medium for regulating and controlling the regional cooling and heating system are provided by the embodiment of the application, and the actual water supply information, the actual operation pressure difference and the target process type of each heat exchange station are obtained; the target process type is determined according to a preset heat exchange station process classification standard; calculating the load factor based on the actual water supply information to obtain the flow load factor; performing differential pressure calculation based on the target process type and the flow load rate to obtain a minimum differential pressure, and performing differential pressure calculation based on the actual operation differential pressure and the minimum differential pressure to obtain a differential value calculation result; integrating the difference value calculation results corresponding to each heat exchange station to generate a heat exchange station differential pressure difference sequence; selecting a heat exchange station with the smallest difference value from the heat exchange station differential pressure difference sequence as the most unfavorable heat exchange station; and carrying out feedback regulation and control on the operation parameters of the pipeline network water pump based on the difference value of the least favorable heat exchange station.

The process types of the heat exchange stations can be classified, the minimum differential pressure is calculated according to the process types of the heat exchange stations, the interpretability of the calculation process is improved, statistical analysis on historical operation data is not needed, calculation resources are saved, and the calculation efficiency is improved. And the most unfavorable heat exchange station is determined, and the operation parameters of the pipeline network water pump are adjusted according to the pressure difference of the most unfavorable heat exchange station, so that the pressure difference of all the heat exchange stations in the regional cooling and heating system can be larger than or equal to the minimum utilization pressure difference, and the energy efficiency of the regional cooling and heating system is improved and the energy waste is reduced under the condition that the temperature meeting requirements is ensured.

The embodiments described in the embodiments of the present application are for more clearly describing the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application, and as those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

It will be appreciated by those skilled in the art that the technical solutions shown in the figures do not constitute limitations of the embodiments of the present application, and may include more or fewer steps than shown, or may combine certain steps, or different steps.

The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.

The terms "first," "second," "third," "fourth," and the like in the description of the present application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise 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.

It should be understood that in this application, "at least one" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the above-described division of units is merely a logical function division, and there may be another division manner in actual implementation, 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 performed. The coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including multiple instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the various embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing a program.

Preferred embodiments of the present application are described above with reference to the accompanying drawings, and thus do not limit the scope of the claims of the embodiments of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the embodiments of the present application shall fall within the scope of the claims of the embodiments of the present application.

Claims

1. The utility model provides a regional cooling heating system regulation and control method, regional cooling heating system includes pipe network water pump, a plurality of heat exchange station and water supply line, pipe network water pump and a plurality of the heat exchange station is through the water supply line connects, its characterized in that, the method includes:

2. The method of claim 1, wherein the heat exchange station process classification criteria includes a plurality of alternative process types, the method further comprising, prior to said obtaining actual water supply information, actual operating pressure differentials, and target process types for each of the heat exchange stations:

determining a target process type of each heat exchange station;

acquiring valve type data and valve position data of the heat exchange station;

3. The method of claim 2, wherein each of the alternative process types is configured with a corresponding differential pressure calculation parameter; and performing, for each heat exchange station, a service pressure difference calculation based on the target process type and the flow load rate to obtain a minimum service pressure difference, including:

4. A method according to claim 3, wherein the heat exchange station comprises a first differential pressure control valve, and the differential pressure calculation parameter comprises a control differential pressure and a minimum operating differential pressure of the first differential pressure control valve;

5. A method according to claim 3, wherein the heat exchange station comprises a static balance valve and a second differential pressure control valve, the differential pressure calculation parameters comprising pressure drop data for the static balance valve, control differential pressure and minimum operating differential pressure for the second differential pressure control valve;

6. A method according to claim 3, wherein the heat exchange station comprises a regulating valve and a plate heat exchanger, and the differential pressure calculation parameters comprise: pressure drop data of the regulating valve, plate change pressure drop data of the plate heat exchanger and pipeline comprehensive pressure drop data of the heat exchange station;

7. The method of any one of claims 1-6, wherein the actual water supply information includes an actual operating flow rate of the heat exchange station, a return water temperature, and a water supply temperature; the load factor calculation based on the actual water supply information to obtain a flow load factor comprises the following steps:

acquiring design working condition cold load data of a heat exchange station;

8. A district cooling and heating system regulation device, the device comprising:

9. An electronic device comprising a memory storing a computer program and a processor implementing the regional cooling and heating system regulation method of any one of claims 1 to 7 when the computer program is executed by the processor.

10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the regional cooling and heating system regulation method of any one of claims 1 to 7.