CN117308175A - Water supply flow control system and method based on hot water consumption - Google Patents

Water supply flow control system and method based on hot water consumption Download PDF

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Publication number
CN117308175A
CN117308175A CN202311396874.9A CN202311396874A CN117308175A CN 117308175 A CN117308175 A CN 117308175A CN 202311396874 A CN202311396874 A CN 202311396874A CN 117308175 A CN117308175 A CN 117308175A
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CN
China
Prior art keywords
flow
water supply
user
backwater
pipe network
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311396874.9A
Other languages
Chinese (zh)
Inventor
叶成
张荣华
徐淼
闫磊
刘奕伽
陈晨
何畅
叶青
顾先青
张晋
王浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Shilian Energy Saving Technology Co ltd
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Original Assignee
Shanghai Shilian Energy Saving Technology Co ltd
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Shilian Energy Saving Technology Co ltd, Shanghai Nuclear Engineering Research and Design Institute Co Ltd filed Critical Shanghai Shilian Energy Saving Technology Co ltd
Priority to CN202311396874.9A priority Critical patent/CN117308175A/en
Publication of CN117308175A publication Critical patent/CN117308175A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/02—Fluid distribution means
    • F24D2220/0207—Pumps
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/044—Flow sensors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Flow Control (AREA)

Abstract

The invention provides a water supply flow control system and a water supply flow control method based on hot water consumption, which are characterized in that the minimum flow is determined according to the measured backwater flow of a backwater flow sensor of a user in the same-level pipe network, backwater flows of other users in the same-level pipe network are regulated and controlled according to the minimum flow, and the running frequency of a water pump of the user is controlled according to the water supply flow of the user in the same-level pipe network, so that the actual requirements of the user are met, the dynamic regulation and control are realized, and the purpose of energy conservation is achieved.

Description

Water supply flow control system and method based on hot water consumption
Technical Field
The invention belongs to the technical field of water supply flow rate correlation, and particularly relates to a water supply flow rate control system and method based on hot water consumption.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the shortage of urban energy supply, building energy conservation problems become a hot spot for technical development. In the centralized hot water supply area, hot water is supplied to different users such as schools, hospitals, hotels, office buildings and the like by a heating station, and each user takes the hot water from a pipe network; the heat preservation layer is laid on the pipe network to preserve heat, and the temperature of hot water in the pipe network is generally considered to be maintained in a stable range. However, the hot water demand and the usage habit of different users are different, if a unified heat supply mode is adopted, heat cannot be reasonably distributed, and certain energy waste is inevitably caused. Therefore, reasonable water distribution among users is an important way for realizing energy conservation.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a water supply flow control system and a water supply flow control method based on hot water consumption, which are characterized in that the minimum flow is determined by the measured backwater flow of a backwater flow sensor of a user in the same pipe network, the backwater flows of other users in the same pipe network are regulated and controlled according to the minimum flow, and the running frequency of a water pump of the user is controlled according to the water supply flow of the user in the same pipe network, so that the actual demands of the user are met, the dynamic regulation and control are realized, and the purpose of energy conservation is achieved.
To achieve the above object, a first aspect of the present invention provides a water supply flow rate control system based on a hot water usage amount, comprising:
the water supply flow sensor is arranged on a water supply pipeline of each user in the same pipe network and is used for measuring the water supply flow of the user and sending the measured water supply flow to the central processing unit;
the backwater flow sensor is arranged on a backwater pipeline of each user in the same pipe network and is used for measuring backwater flow of the user and sending the measured backwater flow to the central processing unit;
the flow control valve is arranged on a water supply pipeline of each user in the same pipe network and is used for receiving an instruction sent by the central processing unit to adjust the opening;
the water pump is arranged on a total water supply pipeline of all users in the same pipe network and is used for receiving instructions sent by the central processing unit to adjust the operating frequency;
and the central processing unit is used for receiving the water supply flow sent by the water supply flow sensor and the backwater flow sent by the backwater flow sensor of each user in the same pipe network, determining the minimum flow according to the received backwater flow, adjusting the opening degree of the flow control valve sending control instruction according to the minimum flow, and adjusting the operation frequency of the water pump sending control instruction according to the received total water supply flow.
A second aspect of the present invention provides a water supply flow rate control method based on a hot water usage amount, comprising:
acquiring the water supply flow and the backwater flow of each user in the same-level pipe network;
determining the minimum flow according to the acquired backwater flow;
and comparing the determined minimum flow with the backwater flow of each user in the same-level pipe network, and adjusting the water supply flow of the user and the frequency of the water supply pump according to the comparison result.
The one or more of the above technical solutions have the following beneficial effects:
in the invention, the minimum flow is determined by the backwater flow measured by the backwater flow sensor of the user in the same-level pipe network, the backwater flows of other users in the same-level pipe network are regulated and controlled according to the minimum flow, and the running frequency of the water pump of the user is controlled according to the water supply flow of the user in the same-level pipe network, thereby meeting the actual requirements of the user, realizing dynamic regulation and control and achieving the aim of saving energy.
Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic diagram of a water supply flow control system based on hot water consumption in accordance with a first embodiment of the present invention;
in the figure, 1, a central processing unit, 2, a cloud server, 3, a water supply flow sensor, 4, a backwater flow sensor, 5, a flow control valve, 6, a user isolation valve, 7, a water pump, 8 and a user.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. 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 invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention.
Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Example 1
The embodiment discloses a water supply flow control system based on hot water consumption, includes:
the water supply flow sensor 3 is arranged on a water supply pipeline of each user in the same pipe network and is used for measuring the water supply flow of the user and sending the measured water supply flow to the central processing unit 1;
the backwater flow sensor 4 is arranged on a backwater pipeline of each user in the same pipe network and is used for measuring backwater flow of the user and sending the measured backwater flow to the central processor 1;
the flow control valve 5 is arranged on a water supply pipeline of each user in the same pipe network and is used for receiving an instruction sent by the central processing unit 1 to adjust the opening;
the water pump 7 is arranged on a total water supply pipeline of all users in the same pipe network and is used for receiving an instruction sent by the central processing unit 1 to adjust the running frequency;
the central processing unit 1 is used for receiving the water supply flow sent by the water supply flow sensor and the backwater flow sent by the backwater flow sensor of each user in the same pipe network, determining the minimum flow according to the received backwater flow, adjusting the opening degree of the flow control valve sending control instruction according to the minimum flow, and adjusting the operation frequency of the water pump sending control instruction according to the received total water supply flow.
It can be understood that the water pump 7 corresponds to all users under the same-level pipe network, and when the flow is regulated, the flow regulating valve corresponding to a certain user is regulated according to the backwater flow; after all the flow regulating valves are regulated, the frequency of the water pump is regulated according to the sum of the measured water supply flows.
It is understood that the respective water supply pipelines of each user in the same-stage pipe network are respectively connected to the total water supply pipeline in the same-stage pipe network, and the total water supply pipeline supplies water for the respective water supply pipeline of each user.
In the embodiment, the central processing unit 1 determines the minimum flow according to the received backwater flow of each user in the same pipe network; comparing the received backwater flow of each user in the same pipe network with the minimum flow, and sending a control instruction to the flow control valve 5 to adjust the opening according to the comparison result, wherein the adjusted target value is as follows: and reducing the backwater flow of each user to the minimum flow.
In this embodiment, the central processing unit 1 adjusts the opening of the flow control valve by sending a control instruction according to the received backwater flow rate of each user in the same pipe network and the minimum flow rate.
In this embodiment, the central processing unit 1 refers to the sum of the water supply flows of all users in the same pipe network to adjust the operation frequency of the water pump 7.
In this embodiment, the user 8 directly takes hot water from the pipe network through the pipe where the isolation valve 6 is located, so the upstream of the user 8 is defined as a water supply pipe, the downstream of the user 8 is defined as a water return pipe, the flow control valve and the water pump are arranged on the water supply pipe, and the cloud server 2, the water supply flow sensor 3, the water return flow sensor 4, the flow control valve 5 and the water pump 7 are respectively electrically connected with the central processing unit 1.
The central processing unit 1 adopts an STM32 singlechip, can stably work, and does not need improvement in use.
For all users in the same-level pipe network, under the rated frequency operation working condition of the water pump, the flow control valve 5 is in a full-open state, the reading F0 of the water supply flow sensor 3 at the upstream of each user is recorded, the flow Fi of the backwater flow sensor 4 at the downstream of each user is read, and the data are stored in the cloud server 2. And determining the minimum flow Fi (min) of the downstream of the user according to the measured backwater flow of the user, taking the minimum flow as a reference, adjusting the water supply flow and backwater flow of other users by reducing the opening of the upstream flow control valve 5 of the user, adjusting the backwater flow to Fi (min), recording the opening of the valve of the flow control valve at the moment, and uploading the opening to the cloud server 2.
The water supply flow sensor 3 is used for measuring the flow of the water supply pipeline in real time, the backwater flow sensor 4 is used for measuring the flow of the backwater pipeline in real time, the measured backwater flow is compared with the minimum flow Fi (min), the opening of the flow control valve 5 of the user is reduced according to the measured backwater flow value, and when the backwater flow is reduced to the minimum flow Fi (min), the adjustment of the opening of the flow control valve 5 is stopped. .
After the minimum flow Fi (min) is determined, the valve opening at each user may be adjusted individually. After the valve opening is adjusted, the operation frequency of the water pump is adjusted according to the sum of the water supply flow rates measured by the water supply flow rate sensor module 3 so as to reduce the operation frequency and achieve the purpose of energy saving.
Specifically, after the opening of the valve of the flow control valve is adjusted, the water supply flow is reduced, at this time, the sum of the adjusted water supply flows is calculated to be the flow actually provided by the pump, and the actual frequency of the pump can be determined compared with the flow at the rated frequency of the pump.
The central processing unit 1 is also communicated with the cloud server 2, the cloud server 2 is provided with a control program, the control program carries out model training according to the daily water consumption of each user to obtain a control model, and then the opening of the valve is preset according to specific time.
According to the water supply flow control system based on the hot water consumption, the water consumption is measured by taking the backwater flow of the user side as input, and the water supply flow of the user is adjusted based on the backwater flow, so that the actual requirements of the user are met, the dynamic regulation and control are realized, and the purpose of saving energy is achieved. In addition, the valve opening is corrected through the flow of the water supply and return, so that the influence of the heat loss along the way is considered, the hydraulic distribution is more uniform, and the terminal requirements can be accurately matched.
Example two
An object of the present embodiment is to provide a water supply flow rate control method based on a hot water consumption, including:
acquiring the water supply flow and the backwater flow of each user in the same-level pipe network;
determining the minimum flow according to the acquired backwater flow;
and comparing the determined minimum flow with the backwater flow of each user in the same-level pipe network, and adjusting the water supply flow of the user and the frequency of the water supply pump according to the comparison result.
And comparing the determined minimum flow with the backwater flow of each user in the same-level pipe network, and adjusting the backwater flow of each user to the minimum flow as a target to adjust the water supply flow of the user.
And adjusting the operation frequency of the water pump for controlling the water supply flow of the user according to the sum of the water supply flow of all users in the same-level pipe network.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented by general-purpose computer means, alternatively they may be implemented by program code executable by computing means, whereby they may be stored in storage means for execution by computing means, or they may be made into individual integrated circuit modules separately, or a plurality of modules or steps in them may be made into a single integrated circuit module. The present invention is not limited to any specific combination of hardware and software.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.

Claims (10)

1. A water supply flow control system based on hot water usage, comprising:
the water supply flow sensor is arranged on a water supply pipeline of each user in the same pipe network and is used for measuring the water supply flow of the user and sending the measured water supply flow to the central processing unit;
the backwater flow sensor is arranged on a backwater pipeline of each user in the same pipe network and is used for measuring backwater flow of the user and sending the measured backwater flow to the central processing unit;
the flow control valve is arranged on a water supply pipeline of each user in the same pipe network and is used for receiving an instruction sent by the central processing unit to adjust the opening;
the water pump is arranged on a total water supply pipeline of all users in the same pipe network and is used for receiving instructions sent by the central processing unit to adjust the operating frequency;
and the central processing unit is used for receiving the water supply flow sent by the water supply flow sensor and the backwater flow sent by the backwater flow sensor of each user in the same pipe network, determining the minimum flow according to the received backwater flow, adjusting the opening degree of the flow control valve sending control instruction according to the minimum flow, and adjusting the operation frequency of the water pump sending control instruction according to the received total water supply flow.
2. The water supply flow control system based on hot water consumption as claimed in claim 1, wherein said central processing unit determines the minimum flow according to the received backwater flow of each user in the same pipe network; and comparing the received backwater flow of each user in the same pipe network with the minimum flow, and sending a control instruction to the flow control valve to adjust the opening according to the comparison result.
3. The water supply flow control system based on the hot water consumption according to claim 2, wherein the central processing unit sends a control instruction to the flow control valve to adjust the opening according to the received return water flow of each user in the same pipe network as the minimum flow.
4. The water supply flow control system based on hot water usage as claimed in claim 1, wherein said central processing unit adjusts the frequency of operation of said water pump according to the sum of water supply flows of all users in the same level of pipe network.
5. A water supply flow control system based on hot water usage as recited in claim 1, wherein the central processing unit employs an STM32 single chip microcomputer.
6. The water supply flow control system based on the hot water consumption as claimed in claim 1, wherein, during the flow adjustment, firstly, the flow adjusting valve corresponding to a certain user is adjusted according to the backwater flow; after all the flow regulating valves of all the users are regulated, the frequency of the water pump is regulated according to the sum of the measured water supply flows.
7. A water supply flow control method based on a hot water usage amount, comprising:
acquiring the water supply flow and the backwater flow of each user in the same-level pipe network;
determining the minimum flow according to the acquired backwater flow;
and comparing the determined minimum flow with the backwater flow of each user in the same-level pipe network, and adjusting the water supply flow of the user and the frequency of the water supply pump according to the comparison result.
8. The method for controlling flow rate of water supply based on hot water consumption as claimed in claim 7, wherein, during flow rate adjustment, firstly, the flow rate adjusting valve corresponding to a certain user is adjusted according to the flow rate of backwater; after all flow regulating valves of all users are regulated, the frequency of the water pumps for controlling all users in the same pipe network is regulated according to the sum of the measured water supply flows of the users.
9. The method for controlling the flow rate of water supply based on the consumption of hot water according to claim 7, wherein the water supply flow rate of the user is adjusted by comparing the determined minimum flow rate with the water return flow rate of each user in the same pipe network to adjust the water return flow rate of each user to the minimum flow rate.
10. The water supply flow control method based on the amount of the hot water as claimed in claim 7, further comprising: and adjusting the operation frequency of the water pump for controlling the water supply flow of the user according to the sum of the water supply flow of all users in the same-level pipe network.
CN202311396874.9A 2023-10-25 2023-10-25 Water supply flow control system and method based on hot water consumption Pending CN117308175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311396874.9A CN117308175A (en) 2023-10-25 2023-10-25 Water supply flow control system and method based on hot water consumption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311396874.9A CN117308175A (en) 2023-10-25 2023-10-25 Water supply flow control system and method based on hot water consumption

Publications (1)

Publication Number Publication Date
CN117308175A true CN117308175A (en) 2023-12-29

Family

ID=89237227

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311396874.9A Pending CN117308175A (en) 2023-10-25 2023-10-25 Water supply flow control system and method based on hot water consumption

Country Status (1)

Country Link
CN (1) CN117308175A (en)

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