CN114396647A - Method and equipment for adjusting water balance of heat supply two-network - Google Patents
Method and equipment for adjusting water balance of heat supply two-network Download PDFInfo
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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
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- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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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
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Abstract
The invention provides a method and equipment for adjusting the hydraulic balance of a heat supply two-network. The method comprises the following steps: constructing a first pipe network resistance distribution model; collecting data and room temperature of a user side building control system, sending the data and the room temperature to a centralized control cloud platform, and obtaining flow distribution of the second network after calculation to obtain a second network resistance distribution model; performing first floor control adjustment on the water conservancy balance by adopting a second pipe network resistance distribution model until the adjustable branch of the valve meets a target flow range, and performing second floor control adjustment on the water conservancy balance according to the heat supply amount until the heat reaches balance; and adjusting the secondary side branch valve, the secondary side circulating pump frequency and the main valve according to the flow ratio until the secondary side flow reaches hydraulic balance, and adjusting the valve opening according to the heat supply amount and the indoor temperature to realize energy conservation and consumption reduction of the two networks. The invention realizes more accurate balance control of the heating two-network, and has higher accuracy.
Description
Technical Field
The embodiment of the invention relates to the technical field of heat supply pipe networks, in particular to a method and equipment for adjusting the water balance of a heat supply two-network.
Background
In the balanced regulation mode of two nets (being responsible for net and secondary pipe network) of current heating system, extensively adopt the temperature control balance valve to carry out two net hydraulic balance regulations, the temperature control balance valve is adjusted and is one kind and uses return water temperature as the regulation mode of regulation benchmark, return water temperature and indoor heating temperature are positive correlation, but hardly have clear and definite numerical value corresponding relation to each building, be a rough balanced control, can't realize that different users' indoor heating temperature tends towards unanimity, and all reach the heating standard. Therefore, it is an urgent technical problem in the art to develop a method and apparatus for adjusting the hydraulic balance of a heating two-network, which can effectively overcome the above-mentioned drawbacks in the related art.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a method and equipment for adjusting the hydraulic balance of a heating two-network.
In a first aspect, an embodiment of the present invention provides a method for adjusting a hydraulic balance of a heating two-network, including: constructing a pipe network topology model according to the basic information of the two-network pipe network, and constructing a first pipe network resistance distribution model according to the pipe network topology model; collecting user side building control system data and room temperature, sending the data and the room temperature to a centralized control cloud platform, obtaining flow distribution of the two networks after calculation, and correcting a first pipe network resistance distribution model by adopting the flow distribution of the two networks to obtain a second pipe network resistance distribution model; performing first floor control adjustment on the water conservancy balance by adopting a second pipe network resistance distribution model until the adjustable branch of the valve meets a target flow range, and performing second floor control adjustment on the water conservancy balance according to the heat supply amount until the heat reaches balance; and adjusting the secondary side branch valve, the secondary side circulating pump frequency and the main valve according to the flow ratio until the secondary side flow reaches hydraulic balance, and adjusting the valve opening according to the heat supply amount and the indoor temperature to realize energy conservation and consumption reduction of the two networks.
On the basis of the content of the embodiment of the method, the method for adjusting the water balance of the two-network heat supply pipe network provided by the embodiment of the invention comprises the following basic information: pipeline diameter, length, branch, node, valve, pipe fitting and heat preservation; the pipe network topology model comprises: each node, pipe section and hot user abstract loop system of the pipe network.
On the basis of the content of the embodiment of the method, the method for adjusting the water balance of the heat supply two-network provided by the embodiment of the invention for acquiring the data of the user-side building control system comprises the following steps: and the temperature supply, the temperature return, the pressure supply, the pressure return and the valve opening of the user side building control system.
On the basis of the content of the embodiment of the method, the method for adjusting the hydraulic balance of the heat supply two-network provided by the embodiment of the invention adopts the second network resistance distribution model to perform first floor control adjustment on the hydraulic balance until the adjustable branch of the valve meets the target flow range, and comprises the following steps: reading parameters of building control pressure and water supply flow of the heat exchange station from a database in real time, inputting the parameters into a second pipe network resistance distribution model to obtain flow distribution of the pipe network, and obtaining a ratio of actual flow to target flow; according to the extracted minimum flow ratio, the extracted maximum flow ratio and the flow ratio of the worst user obtained by hydraulic analysis, adjusting the valve for the first time; and recording secondary side heat supply parameters and secondary side circulating pump operation parameters in the station, and adjusting the valve for the second time until the adjustable branch of the valve meets the target flow range.
On the basis of the content of the embodiment of the method, the method for adjusting the water power balance of the heat supply two-network provided by the embodiment of the invention performs second floor control adjustment on the water power balance according to the heat supply amount until the heat is balanced, and comprises the following steps: measuring the return water temperature of each building control valve, calculating the supply and return water temperature difference of each building control valve according to the return water temperature, calculating the temperature difference ratio of the supply and return water temperature difference and the total supply and return water, calculating the product of the flow ratio and the temperature difference ratio, and adjusting the building control valves according to the product and the indoor temperature until the heat is balanced.
On the basis of the content of the embodiment of the method, the method for adjusting the hydraulic balance of the heating two-network provided by the embodiment of the invention performs the first adjustment on the valve according to the extracted minimum flow ratio, the extracted maximum flow ratio and the flow ratio of the worst user obtained by hydraulic analysis, and comprises the following steps of: if the minimum flow ratio deviates from the target value, checking whether the corresponding valve opening is maximum or not, wherein the valve opening is not maximum, and the opening of the adjusting valve is hundreds of full open; if the valve opening is maximum, checking whether the valve opening corresponding to the flow ratio of the most unfavorable user is maximum or not, and if not, adjusting the valve opening to be hundreds of full opening; and if the maximum opening degree of the valve corresponds to the flow ratio of the most unfavorable user, keeping the valve fully opened, and adjusting the secondary network circulating pump until the flow ratio is reduced to a target value.
In a second aspect, an embodiment of the present invention provides a heating supply two-network hydraulic balance adjusting system, including: the plurality of building control balance valves are used for adjusting valve, pressure supply, back pressure, temperature supply, back temperature and opening measurement point values and sending the opening measurement point values to the data acquisition box; the data acquisition box is used for acquiring building control information, transmitting the building control information to the heat supply network centralized control cloud platform and receiving data of the heat supply network centralized control cloud platform; the heat exchange station and the DCS thereof are used for adjusting the water supply temperature through the primary side temperature adjusting valve and adjusting the water supply flow through the variable-frequency circulating pump, and the DCS is in wireless transmission communication with the heat supply network centralized control cloud platform and can transmit measuring point feedback and receive adjusting instructions of the heat supply network centralized control cloud platform to the variable-frequency circulating water pump and the primary side temperature adjusting valve; the room temperature collector is used for collecting room temperature information of each building and uploading the room temperature information to the heat supply network centralized control cloud platform through wireless transmission; the heat supply network centralized control cloud platform is used for realizing the heat supply two-network water power balance adjusting method in any one of the method embodiments.
In a third aspect, an embodiment of the present invention provides a heating supply two-network hydraulic balance adjusting device, including: the first main module is used for constructing a pipe network topology model according to the basic information of the two-network pipe network and constructing a first pipe network resistance distribution model according to the pipe network topology model; the second main module is used for acquiring data of the user-side building control system and room temperature, sending the data to the centralized control cloud platform, obtaining flow distribution of the second network after calculation, and correcting the first pipe network resistance distribution model by adopting the flow distribution of the second network to obtain a second pipe network resistance distribution model; the third main module is used for performing first floor control adjustment on the water conservancy balance by adopting a second pipe network resistance distribution model until the valve adjustable branch meets a target flow range, and performing second floor control adjustment on the water conservancy balance according to the heat supply amount until the heat quantity reaches balance; and the fourth main module is used for adjusting the secondary side branch valve, the secondary side circulating pump frequency and the main valve according to the flow ratio until the secondary side flow reaches hydraulic balance, and adjusting the opening degree of the valve according to the heat supply amount and the indoor temperature to realize energy conservation and consumption reduction of the secondary network.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the method for adjusting the water balance of the heating supply two-network provided by any one of the various implementation manners of the first aspect.
In a fifth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the method for adjusting the hydraulic balance of a heating network provided in any one of the various implementation manners of the first aspect.
According to the method and the device for adjusting the water balance of the two heat supply networks, provided by the embodiment of the invention, through comprehensively considering information such as the temperature, the flow rate and the indoor temperature of the supply and return water, a mode of combining coarse adjustment and fine adjustment is adopted, so that the two heat supply networks can be accurately and balancedly controlled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below to the drawings required for the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flow chart of a method for adjusting the hydraulic balance of a heating two-network according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a heating two-network hydraulic balance adjusting device according to an embodiment of the present invention;
fig. 3 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a heating two-network hydraulic balance adjustment system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, technical features of various embodiments or individual embodiments provided by the present invention may be arbitrarily combined with each other to form a feasible technical solution, and such combination is not limited by the sequence of steps and/or the structural composition mode, but must be realized by a person skilled in the art, and when the technical solution combination is contradictory or cannot be realized, such a technical solution combination should not be considered to exist and is not within the protection scope of the present invention.
The embodiment of the invention provides a method for adjusting the hydraulic balance of a heating two-network, which is shown in a figure 1 and comprises the following steps: constructing a pipe network topology model according to the basic information of the two-network pipe network, and constructing a first pipe network resistance distribution model according to the pipe network topology model; collecting user side building control system data and room temperature, sending the data and the room temperature to a centralized control cloud platform, obtaining flow distribution of the two networks after calculation, and correcting a first pipe network resistance distribution model by adopting the flow distribution of the two networks to obtain a second pipe network resistance distribution model; performing first floor control adjustment on the water conservancy balance by adopting a second pipe network resistance distribution model until the adjustable branch of the valve meets a target flow range, and performing second floor control adjustment on the water conservancy balance according to the heat supply amount until the heat reaches balance; and adjusting the secondary side branch valve, the secondary side circulating pump frequency and the main valve according to the flow ratio until the secondary side flow reaches hydraulic balance, and adjusting the valve opening according to the heat supply amount and the indoor temperature to realize energy conservation and consumption reduction of the two networks.
Based on the content of the foregoing method embodiment, as an optional embodiment, in the method for adjusting the water balance of the heating two-network provided in the embodiment of the present invention, the basic information of the two-network pipe network includes: pipeline diameter, length, branch, node, valve, pipe fitting and heat preservation; the pipe network topology model comprises: each node, pipe section and hot user abstract loop system of the pipe network.
Specifically, basic information of the two-network pipe network is collected, wherein the basic information comprises the diameter, the length, the branches, the nodes, the valves, the pipe fittings, the heat preservation and the like of the pipeline, a topological structure of the pipe network is established, the topological structure of the pipe network comprises all nodes, pipe sections and a heat user abstract loop system of the pipe network, the data are recorded into a database, and a pipe network resistance distribution model is established.
Based on the content of the foregoing method embodiment, as an optional embodiment, the method for adjusting the water balance of the heating two-network provided in the embodiment of the present invention, where the acquiring data of the user-side building control system includes: and the temperature supply, the temperature return, the pressure supply, the pressure return and the valve opening of the user side building control system.
Specifically, the temperature return, the pressure supply, the pressure return and the valve opening degree are supplied to a user side building control system. And installing a temperature measuring point indoors, collecting the room temperature, and inputting the room temperature into a centralized control cloud platform database. And analyzing the temperature supply data, the temperature return data, the pressure supply data, the pressure return data, the valve opening degree and the indoor temperature data collected by the user side to obtain the flow distribution conditions of the two networks so as to correct the resistance conditions of each section of pipeline of the pipe network topological structure model, and if necessary, obtaining more branch flow values by adopting a field non-invasive flow measurement method so as to correct the resistance distribution model.
Based on the content of the foregoing method embodiment, as an optional embodiment, the method for adjusting hydraulic balance of a heating two-network provided in the embodiment of the present invention, where a second network resistance distribution model is used to perform a first building control adjustment on hydraulic balance until an adjustable branch of a valve meets a target flow range, includes: reading parameters of building control pressure and water supply flow of the heat exchange station from a database in real time, inputting the parameters into a second pipe network resistance distribution model to obtain flow distribution of the pipe network, and obtaining a ratio of actual flow to target flow; according to the extracted minimum flow ratio, the extracted maximum flow ratio and the flow ratio of the worst user obtained by hydraulic analysis, adjusting the valve for the first time; and recording secondary side heat supply parameters and secondary side circulating pump operation parameters in the station, and adjusting the valve for the second time until the adjustable branch of the valve meets the target flow range.
Specifically, parameters of building control pressure and water supply flow of the heat exchange station are read in real time from a database, a pipe network resistance distribution model is input, flow distribution of a pipe network is obtained, and the ratio of actual flow to target flow (design) is calculated. Finding out the minimum flow ratio (including the parallel minimum) and the maximum flow ratio (including the parallel maximum); meanwhile, finding out the flow ratio corresponding to the worst user obtained by hydraulic analysis; it is determined whether the above flow rate ratio deviates from a target value. If the minimum value deviates from the target value, checking whether the corresponding valve opening is opened to the maximum or not, and adjusting the valve opening to be: 100% full open. If the valve corresponding to the minimum flow ratio is fully opened (or the valve has no regulating capacity for various reasons, recording). Checking whether the valve opening corresponding to the flow ratio of the most adverse user is maximum or not, wherein the valve opening is not maximum, and the valve opening of the adjusting valve is as follows: 100% full open. If the adjustment capability is not available for various reasons, recording is carried out. If the maximum value appears at the least favorable position, the valve is kept fully opened, the secondary network circulating pump is adjusted until the flow ratio is reduced to the target value, and then the next step is carried out. And if the maximum value appears in other branches and is larger, the opening degree of the valve is reduced. A one time fully open valve is not required and the corresponding single adjustment amplitude can be referred to table 1. And after the corresponding valve is adjusted once and 2 hours later, taking the flow of each branch, and calculating the flow ratio to serve as an initial value of the second adjustment.
TABLE 1
Note: the opening of the lower valve is the opening before the next adjustment (or after the previous adjustment), and is not always equal to the initial opening.
And after the primary adjustment is finished, recording secondary side heat supply parameters (flow, temperature and pressure) and secondary side circulating pump operation parameters (frequency, voltage, current and pressures of an inlet and an outlet of the circulating pump) in the station. Whether obvious differences exist in data feedback of total flow of the secondary side in the station, front and rear pressures of a water pump and the like or not is noticed. Before the next adjustment (namely, the distance is more than 2 hours from the last adjustment), whether the complaint and explosion cooling conditions exist in the end user is confirmed, and if the indoor temperature reaches the standard, the water pump in the station does not need to be adjusted at the moment, and the step 4 is carried out. If the flow ratio of the branch is still minimum and less than 0.9 under the condition that the valve of the minimum flow ratio branch is fully opened, the frequency of the circulating pump at the two-network side in the heat exchange station needs to be increased until the minimum flow ratio reaches the target lower limit value of 0.9 or the frequency of the water pump is adjusted to be maximum. And entering the next wheel valve regulating cycle. Until the valve adjustable branch meets the target flow range. And checking to meet the adjusting condition, and adjusting the frequency conversion water pump in the station. The first floor control adjustment is finished.
Based on the content of the foregoing method embodiment, as an optional embodiment, the method for adjusting hydraulic balance of a heating two-network provided in the embodiment of the present invention, where the second floor control adjustment is performed on the hydraulic balance according to the heating load until the heat is balanced, includes: measuring the return water temperature of each building control valve, calculating the supply and return water temperature difference of each building control valve according to the return water temperature, calculating the temperature difference ratio of the supply and return water temperature difference and the total supply and return water, calculating the product of the flow ratio and the temperature difference ratio, and adjusting the building control valves according to the product and the indoor temperature until the heat is balanced.
Specifically, the second floor control adjustment is balance adjustment according to the heat supply load: measuring backwater temperature T of each building control valvercIn degrees celsius; calculating the temperature difference of supply water and return water of each building control valve, wherein the unit is as follows: delta Tc＝T-TrcWherein T is the branch water supply temperature and the unit is centigrade; calculating the ratio of the temperature difference between the supply and return water and the total temperature difference between the supply and return water
The method has the advantages of no dimension,
in the formula,. DELTA.TcFor actually measuring two networks corresponding to each valveThe return water temperature difference is given in centigrade. Delta T2The temperature difference of the total supply return water of the two networks in the station is given in centigrade. Calculating the product W of the flow ratio and the temperature difference ratio of the coarse adjustment final state:
in the formula,
is the flow ratio;
is a temperature difference ratio; numerical judgment of W: w is larger than 1, which indicates that the actual heat dissipation capacity of the user is larger than the assumed required value; w is 1, which shows that the actual heat dissipation capacity of the user is approximately equal to the assumed required value; w is less than 1, which indicates that the actual heat dissipation capacity of the user is lower than the assumed required value; the actual heat dissipation amount is larger or smaller than the over-insufficient heat supply value; whether excessive and insufficient heat supply is determined by the indoor temperature; in this case, the user indoor temperature corresponding to each branch needs to be set as condition 2. If both of the conditions 1 and 2 are satisfied (as shown in table 2), the floor control valve is finely adjusted.
TABLE 2
Note: are fine tuned with small amplitude.
And after 2-3 hours, measuring the return water temperature and sampling and checking the indoor temperature again. And (4) calibrating and fine-adjusting for several times until the heat basically reaches balance (the difference between the W value and the indoor temperature is reduced, and the room temperature is 18-22 ℃), and finishing the second floor control adjustment.
Based on the content of the foregoing method embodiment, as an optional embodiment, the method for adjusting a hydraulic balance of a heating two-network provided in the embodiment of the present invention, wherein the first adjustment of the valve is performed according to the extracted minimum flow ratio, the extracted maximum flow ratio, and the flow ratio of the worst user obtained through hydraulic analysis, includes: if the minimum flow ratio deviates from the target value, checking whether the corresponding valve opening is maximum or not, wherein the valve opening is not maximum, and the opening of the adjusting valve is hundreds of full open; if the valve opening is maximum, checking whether the valve opening corresponding to the flow ratio of the most unfavorable user is maximum or not, and if not, adjusting the valve opening to be hundreds of full opening; and if the maximum opening degree of the valve corresponds to the flow ratio of the most unfavorable user, keeping the valve fully opened, and adjusting the secondary network circulating pump until the flow ratio is reduced to a target value.
And then, carrying out in-station coarse adjustment, adjusting a secondary side branch valve, a secondary side circulating pump frequency and a main valve according to the flow ratio, and aiming at achieving secondary side flow redistribution (hydraulic balance). During the in-station coarse adjustment, the condition judgment of adjusting the secondary side circulating water pump is shown in table 3:
TABLE 3
Continuously performing in-station fine adjustment, and finely adjusting the opening of the valve according to the heat supply amount and the indoor temperature; meanwhile, if the following conditions are met, the primary side flow needs to be regulated, so that the quality regulation of the two networks is realized, and the energy is saved and the consumption is reduced. After the fine adjustment of the two-network valve, the conditions for adjusting the primary side temperature adjustment valve are determined as shown in table 4:
TABLE 4
According to the method for adjusting the water balance of the heat supply two-network, provided by the embodiment of the invention, through comprehensively considering information such as the temperature, the flow rate and the indoor temperature of the supply water and the return water, a mode of combining coarse adjustment and fine adjustment is adopted, so that the more accurate balance control of the heat supply two-network is realized.
The embodiment of the invention provides a system for adjusting the water balance of a heating two-network, and referring to fig. 4, the system comprises: the plurality of building control balance valves are used for adjusting valve, pressure supply, back pressure, temperature supply, back temperature and opening measurement point values and sending the opening measurement point values to the data acquisition box; the data acquisition box is used for acquiring building control information, transmitting the building control information to the heat supply network centralized control cloud platform and receiving data of the heat supply network centralized control cloud platform; the heat exchange station and the DCS thereof are used for adjusting the water supply temperature through the primary side temperature adjusting valve and adjusting the water supply flow through the variable-frequency circulating pump, and the DCS is in wireless transmission communication with the heat supply network centralized control cloud platform and can transmit measuring point feedback and receive adjusting instructions of the heat supply network centralized control cloud platform to the variable-frequency circulating water pump and the primary side temperature adjusting valve; the room temperature collector is used for collecting room temperature information of each building and uploading the room temperature information to the heat supply network centralized control cloud platform through wireless transmission; the heat supply network centralized control cloud platform is used for realizing the heat supply two-network water power balance adjusting method in any one of the method embodiments.
The implementation basis of the various embodiments of the present invention is realized by programmed processing performed by a device having a processor function. Therefore, in engineering practice, the technical solutions and functions thereof of the embodiments of the present invention can be packaged into various modules. Based on this practical situation, on the basis of the above embodiments, embodiments of the present invention provide a heating two-network hydraulic balance adjustment apparatus, which is used for executing the heating two-network hydraulic balance adjustment method in the above method embodiments. Referring to fig. 2, the apparatus includes: the first main module is used for constructing a pipe network topology model according to the basic information of the two-network pipe network and constructing a first pipe network resistance distribution model according to the pipe network topology model; the second main module is used for acquiring data of the user-side building control system and room temperature, sending the data to the centralized control cloud platform, obtaining flow distribution of the second network after calculation, and correcting the first pipe network resistance distribution model by adopting the flow distribution of the second network to obtain a second pipe network resistance distribution model; the third main module is used for performing first floor control adjustment on the water conservancy balance by adopting a second pipe network resistance distribution model until the valve adjustable branch meets a target flow range, and performing second floor control adjustment on the water conservancy balance according to the heat supply amount until the heat quantity reaches balance; and the fourth main module is used for adjusting the secondary side branch valve, the secondary side circulating pump frequency and the main valve according to the flow ratio until the secondary side flow reaches hydraulic balance, and adjusting the opening degree of the valve according to the heat supply amount and the indoor temperature to realize energy conservation and consumption reduction of the secondary network.
The water balance adjusting device for the two heat supply networks, provided by the embodiment of the invention, adopts a plurality of modules in the figure 2, comprehensively considers information such as temperature, flow and indoor temperature of supply and return water, and adopts a mode of combining coarse adjustment and fine adjustment to realize more accurate balance control of the two heat supply networks.
It should be noted that, the apparatus in the apparatus embodiment provided by the present invention may be used for implementing methods in other method embodiments provided by the present invention, except that corresponding function modules are provided, and the principle of the apparatus embodiment provided by the present invention is basically the same as that of the apparatus embodiment provided by the present invention, so long as a person skilled in the art obtains corresponding technical means by combining technical features on the basis of the apparatus embodiment described above, and obtains a technical solution formed by these technical means, on the premise of ensuring that the technical solution has practicability, the apparatus in the apparatus embodiment described above may be modified, so as to obtain a corresponding apparatus class embodiment, which is used for implementing methods in other method class embodiments. For example:
based on the content of the above device embodiment, as an optional embodiment, the device for adjusting the water balance of the heating two-network provided in the embodiment of the present invention further includes: the first submodule is used for realizing the basic information of the two-network management network, and comprises: pipeline diameter, length, branch, node, valve, pipe fitting and heat preservation; the pipe network topology model comprises: each node, pipe section and hot user abstract loop system of the pipe network.
Based on the content of the above device embodiment, as an optional embodiment, the device for adjusting the water balance of the heating two-network provided in the embodiment of the present invention further includes: the second submodule is used for realizing the data acquisition of the user side building control system and comprises: and the temperature supply, the temperature return, the pressure supply, the pressure return and the valve opening of the user side building control system.
Based on the content of the above device embodiment, as an optional embodiment, the device for adjusting the water balance of the heating two-network provided in the embodiment of the present invention further includes: the third submodule piece is used for realizing that the second pipe network resistance distribution model is adopted to carry out first building control adjustment on water conservancy balance until the adjustable branch of the valve meets the target flow range, and comprises: reading parameters of building control pressure and water supply flow of the heat exchange station from a database in real time, inputting the parameters into a second pipe network resistance distribution model to obtain flow distribution of the pipe network, and obtaining a ratio of actual flow to target flow; according to the extracted minimum flow ratio, the extracted maximum flow ratio and the flow ratio of the worst user obtained by hydraulic analysis, adjusting the valve for the first time; and recording secondary side heat supply parameters and secondary side circulating pump operation parameters in the station, and adjusting the valve for the second time until the adjustable branch of the valve meets the target flow range.
Based on the content of the above device embodiment, as an optional embodiment, the device for adjusting the water balance of the heating two-network provided in the embodiment of the present invention further includes: the fourth submodule piece is used for realizing carry out the second building accuse to water conservancy balance according to the heat supply and adjust, until the heat reaches balance, include: measuring the return water temperature of each building control valve, calculating the supply and return water temperature difference of each building control valve according to the return water temperature, calculating the temperature difference ratio of the supply and return water temperature difference and the total supply and return water, calculating the product of the flow ratio and the temperature difference ratio, and adjusting the building control valves according to the product and the indoor temperature until the heat is balanced.
Based on the content of the above device embodiment, as an optional embodiment, the device for adjusting the water balance of the heating two-network provided in the embodiment of the present invention further includes: the fifth sub-module is used for realizing the first adjustment of the valve according to the extracted minimum flow ratio, the extracted maximum flow ratio and the flow ratio of the worst user obtained by hydraulic analysis, and comprises the following steps: if the minimum flow ratio deviates from the target value, checking whether the corresponding valve opening is maximum or not, wherein the valve opening is not maximum, and the opening of the adjusting valve is hundreds of full open; if the valve opening is maximum, checking whether the valve opening corresponding to the flow ratio of the most unfavorable user is maximum or not, and if not, adjusting the valve opening to be hundreds of full opening; and if the maximum opening degree of the valve corresponds to the flow ratio of the most unfavorable user, keeping the valve fully opened, and adjusting the secondary network circulating pump until the flow ratio is reduced to a target value.
The method of the embodiment of the invention is realized by depending on the electronic equipment, so that the related electronic equipment is necessarily introduced. To this end, an embodiment of the present invention provides an electronic apparatus, as shown in fig. 3, including: the system comprises at least one processor (processor), a communication Interface (communication Interface), at least one memory (memory) and a communication bus, wherein the at least one processor, the communication Interface and the at least one memory are communicated with each other through the communication bus. The at least one processor may invoke logic instructions in the at least one memory to perform all or a portion of the steps of the methods provided by the various method embodiments described above.
In addition, the logic instructions in the at least one memory may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the method embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-described embodiments of the apparatus are merely illustrative, and 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 modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. Based on this recognition, each block in the flowchart or block diagrams may represent a module, a program segment, or a portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In this patent, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; 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; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for adjusting the hydraulic balance of a heating two-network is characterized by comprising the following steps: constructing a pipe network topology model according to the basic information of the two-network pipe network, and constructing a first pipe network resistance distribution model according to the pipe network topology model; collecting user side building control system data and room temperature, sending the data and the room temperature to a centralized control cloud platform, obtaining flow distribution of the two networks after calculation, and correcting a first pipe network resistance distribution model by adopting the flow distribution of the two networks to obtain a second pipe network resistance distribution model; performing first floor control adjustment on the water conservancy balance by adopting a second pipe network resistance distribution model until the adjustable branch of the valve meets a target flow range, and performing second floor control adjustment on the water conservancy balance according to the heat supply amount until the heat reaches balance; and adjusting the secondary side branch valve, the secondary side circulating pump frequency and the main valve according to the flow ratio until the secondary side flow reaches hydraulic balance, and adjusting the valve opening according to the heat supply amount and the indoor temperature to realize energy conservation and consumption reduction of the two networks.
2. A method for regulating the water balance of a heating network according to claim 1, wherein the basic information of the two-network pipe network comprises: pipeline diameter, length, branch, node, valve, pipe fitting and heat preservation; the pipe network topology model comprises: each node, pipe section and hot user abstract loop system of the pipe network.
3. A method as claimed in claim 2, wherein the collecting data from the building control system at the user side comprises: and the temperature supply, the temperature return, the pressure supply, the pressure return and the valve opening of the user side building control system.
4. A method according to claim 3, wherein the first floor-controlled adjustment of hydraulic balance using the second pipe network resistance distribution model until the valve adjustable branch meets the target flow range comprises: reading parameters of building control pressure and water supply flow of the heat exchange station from a database in real time, inputting the parameters into a second pipe network resistance distribution model to obtain flow distribution of the pipe network, and obtaining a ratio of actual flow to target flow; according to the extracted minimum flow ratio, the extracted maximum flow ratio and the flow ratio of the worst user obtained by hydraulic analysis, adjusting the valve for the first time; and recording secondary side heat supply parameters and secondary side circulating pump operation parameters in the station, and adjusting the valve for the second time until the adjustable branch of the valve meets the target flow range.
5. A method as claimed in claim 4, wherein said second floor-controlled adjustment of hydraulic balance according to heat supply load until heat is balanced comprises: measuring the return water temperature of each building control valve, calculating the supply and return water temperature difference of each building control valve according to the return water temperature, calculating the temperature difference ratio of the supply and return water temperature difference and the total supply and return water, calculating the product of the flow ratio and the temperature difference ratio, and adjusting the building control valves according to the product and the indoor temperature until the heat is balanced.
6. A method for adjusting the hydraulic balance of a heating supply secondary network according to claim 5, wherein the first adjustment of the valve according to the extracted minimum flow ratio, the extracted maximum flow ratio and the flow ratio of the least favorable user obtained by hydraulic analysis comprises: if the minimum flow ratio deviates from the target value, checking whether the corresponding valve opening is maximum or not, wherein the valve opening is not maximum, and the opening of the adjusting valve is hundreds of full open; if the valve opening is maximum, checking whether the valve opening corresponding to the flow ratio of the most unfavorable user is maximum or not, and if not, adjusting the valve opening to be hundreds of full opening; and if the maximum opening degree of the valve corresponds to the flow ratio of the most unfavorable user, keeping the valve fully opened, and adjusting the secondary network circulating pump until the flow ratio is reduced to a target value.
7. The utility model provides a two net hydraulic balance governing systems of heat supply which characterized in that includes: the plurality of building control balance valves are used for adjusting valve, pressure supply, back pressure, temperature supply, back temperature and opening measurement point values and sending the opening measurement point values to the data acquisition box; the data acquisition box is used for acquiring building control information, transmitting the building control information to the heat supply network centralized control cloud platform and receiving data of the heat supply network centralized control cloud platform; the heat exchange station and the DCS thereof are used for adjusting the water supply temperature through the primary side temperature adjusting valve and adjusting the water supply flow through the variable-frequency circulating pump, and the DCS is in wireless transmission communication with the heat supply network centralized control cloud platform and can transmit measuring point feedback and receive adjusting instructions of the heat supply network centralized control cloud platform to the variable-frequency circulating water pump and the primary side temperature adjusting valve; the room temperature collector is used for collecting room temperature information of each building and uploading the room temperature information to the heat supply network centralized control cloud platform through wireless transmission; the heat supply network centralized control cloud platform is used for realizing the heat supply two-network water power balance adjusting method as claimed in any one of claims 1 to 6.
8. The utility model provides a two net hydraulic balance adjusting device of heat supply which characterized in that includes: the first main module is used for constructing a pipe network topology model according to the basic information of the two-network pipe network and constructing a first pipe network resistance distribution model according to the pipe network topology model; the second main module is used for acquiring data of the user-side building control system and room temperature, sending the data to the centralized control cloud platform, obtaining flow distribution of the second network after calculation, and correcting the first pipe network resistance distribution model by adopting the flow distribution of the second network to obtain a second pipe network resistance distribution model; the third main module is used for performing first floor control adjustment on the water conservancy balance by adopting a second pipe network resistance distribution model until the valve adjustable branch meets a target flow range, and performing second floor control adjustment on the water conservancy balance according to the heat supply amount until the heat quantity reaches balance; and the fourth main module is used for adjusting the secondary side branch valve, the secondary side circulating pump frequency and the main valve according to the flow ratio until the secondary side flow reaches hydraulic balance, and adjusting the opening degree of the valve according to the heat supply amount and the indoor temperature to realize energy conservation and consumption reduction of the secondary network.
9. An electronic device, comprising:
at least one processor, at least one memory, and a communication interface; wherein,
the processor, the memory and the communication interface are communicated with each other;
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 6.
10. A non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 6.
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