A device for online monitoring and adjustment of water supply pressure in heating network

Abstract

This invention discloses an online monitoring and adjustment device for heating network makeup water pressure, comprising: a pressure detection unit installed on the heating network pipeline for detecting real-time makeup water pressure; a water volume detection unit installed on the heating network pipeline for detecting real-time makeup water volume; a makeup water unit for adjusting the makeup water supply to the heating network pipeline; and a control system connected to the pressure detection unit, water volume detection unit, and makeup water unit, for managing and controlling the makeup water unit. By acquiring the real-time makeup water pressure and volume of the heating network pipeline, comparing them with preset standard makeup water pressure and volume, and setting corresponding adjustment measures, the device improves the safety and reliability of the heating network system operation and reduces the occurrence of accidents.

Description

Technical Field

[0001] This invention relates to the field of heating network monitoring technology, and in particular to a device for online monitoring and adjustment of heating network makeup water pressure. Background Art

[0002] With the promotion of centralized heating, the safety of heating network pipelines is very important. If there is a leak in the heating network pipelines, it will cause the heating network to lose water. Accidents can also cause the heating network to lose water. The most direct feedback is a drop in the heating network water supply pressure, a drop in the boiler outlet pressure, and a sudden increase in the amount of water supplied. In severe cases, it can lead to a safety accident that causes the entire network to stop supplying heat.

[0003] Currently, the industry generally uses traditional methods to replenish water when the heating network loses water in order to ensure the normal operation of the heating network. This is often done by using a water replenishment pump to pressurize the heating network pipeline. However, the water replenishment pump is used in an intermittent manner. The start and stop of the water replenishment pump has a certain impact on the pressure of the heating network pipeline. Moreover, when the pressure of the heating network pipeline drops rapidly, it cannot be maintained in time. All of these factors will affect the safety and reliability of the heating network system. Summary of the Invention

[0004] The purpose of this invention is to provide an online monitoring and adjustment device for heating network water supply pressure, which solves the problem that when a leakage accident occurs in the heating network pipeline, the water supply pressure drops rapidly and the water supply volume suddenly increases, affecting the safe operation of the heating network system.

[0005] To achieve the above objectives, the present invention provides an online monitoring and adjustment device for heating network makeup water pressure, comprising:

[0006] A pressure detection unit is installed on the heating network pipeline to detect the real-time water supply pressure.

[0007] A water volume detection unit is installed on the heating network pipeline to detect the real-time water replenishment volume;

[0008] A water replenishment unit is used to replenish and adjust the water supply to the heating network pipeline;

[0009] A control system is connected to the pressure detection unit, the water volume detection unit, and the water replenishment unit, respectively, and the control system is used to manage and control the water replenishment unit.

[0010] The control system includes a processing module and a control module. The processing module is used to set the working status command of the water replenishment unit according to the real-time water replenishment data of the heating network pipeline, and the control module is used to control the water replenishment unit according to the working status command set by the processing module.

[0011] In some embodiments of this application, the specific function of the processing module is disclosed. The processing module is used to obtain water replenishment data through the pressure detection unit and the water volume detection unit, and determine whether the heating network pipeline needs to be adjusted based on the water replenishment data.

[0012] The water replenishment data includes real-time water replenishment pressure and real-time water replenishment volume.

[0013] In some embodiments of this application, a method for the processing module to determine whether to perform water replenishment adjustment is disclosed, wherein the processing module is preset with a standard water replenishment pressure and a standard water replenishment volume;

[0014] If the real-time water supply pressure is less than the standard water supply pressure and the real-time water supply volume is less than the standard water supply volume, then an abnormality in the heating network pipeline water supply is determined, an alarm signal is issued, and adjustments are made.

[0015] In some embodiments of this application, the specific method by which the processing module adjusts the heating network water supply is as follows:

[0016] The processing module obtains the real-time water supply pressure of the heating network pipeline, calculates the pressure difference between the standard water supply pressure and the real-time water supply pressure, and sets the water supply volume of the heating network pipeline based on the pressure difference.

[0017] The processing module has a preset pressure difference matrix P0, which is set as P0(P1, P2, P3, P4), where P1 is the first preset pressure difference, P2 is the second preset pressure difference, P3 is the third preset pressure difference, P4 is the fourth preset pressure difference, and P1 < P2 < P3 < P4.

[0018] A water replenishment matrix F0 is preset, and F0(F1, F2, F3, F4) is set, where F1 is the first preset water replenishment, F2 is the second preset water replenishment, F3 is the third preset water replenishment, and F4 is the fourth preset water replenishment, and F1 < F2 < F3 < F4;

[0019] Based on the relationship between the pressure difference P between the standard water supply pressure and the real-time water supply pressure and each preset pressure difference, the water supply volume of the heating network pipeline is set.

[0020] When P < P1, the first preset water replenishment amount F1 is set as the water replenishment amount of the heating network pipeline;

[0021] When P1≤P<P2, the second preset water replenishment amount F2 is set as the water replenishment amount of the heating network pipeline;

[0022] When P2≤P<P3, the third preset water replenishment amount F3 is set as the water replenishment amount of the heating network pipeline;

[0023] When P3≤P<P4, the fourth preset water replenishment amount F4 is set as the water replenishment amount of the heating network pipeline.

[0024] In some embodiments of this application, the structure of the water replenishment unit is improved, and the water replenishment unit includes a water replenishment tank, a water replenishment pump, and a frequency converter;

[0025] The water supply tank is connected to the water supply pump, which is used to supply water to the heating network pipeline. The water supply pump is connected to the frequency converter, which is used to adjust the voltage of the water supply pump.

[0026] In some embodiments of this application, the control module controls the water replenishment unit to replenish water to the heating network pipeline. Before the control module controls the water replenishment unit to replenish water, the control module further includes: detecting the real-time liquid level of the water replenishment tank, comparing it with a preset standard liquid level, and adjusting the water storage capacity of the water replenishment tank according to the standard liquid level.

[0027] In some embodiments of this application, a level monitor is installed inside the water replenishment tank, and the real-time level of the water replenishment tank is measured by the level monitor.

[0028] In some embodiments of this application, the processing module adjusts the water storage capacity of the water replenishment tank in the following specific manner:

[0029] The processing module obtains the real-time liquid level of the water replenishment tank, determines the liquid level difference L between the standard liquid level and the real-time liquid level, and determines the water storage adjustment amount of the water replenishment tank based on the liquid level difference.

[0030] A liquid level difference matrix L0 is preset, and L0(L1, L2, L3, L4) is set, where L1 is the first preset liquid level difference, L2 is the second preset liquid level difference, L3 is the third preset liquid level difference, L4 is the fourth preset liquid level difference, and L1 < L2 < L3 < L4.

[0031] A water storage adjustment matrix W0 is preset for the water replenishment tank, and W0(W1, W2, W3, W4) is set, where W1 is the first preset water storage adjustment, W2 is the second preset water storage adjustment, W3 is the third preset water storage adjustment, W4 is the fourth preset water storage adjustment, and W1 < W2 < W3 < W4.

[0032] Based on the relationship between the liquid level difference L between the standard liquid level and the real-time liquid level and each preset liquid level difference, the water storage adjustment amount of the water replenishment tank is set;

[0033] When L < L1, the first preset water storage adjustment amount W1 is set as the water storage amount of the water replenishment tank;

[0034] When L1≤L<L2, the second preset water storage adjustment amount W2 is set as the water storage amount of the water replenishment tank;

[0035] When L2≤L<L3, the third preset water storage adjustment amount W3 is set as the water storage amount of the water replenishment tank;

[0036] When L3≤L<L4, the fourth preset water storage adjustment amount W4 is set as the water storage amount of the water replenishment tank.

[0037] In some embodiments of this application, the processing module has a preset water replenishment difference matrix D0, which is set as D0(D1, D2, D3, D4), where D1 is the first preset water replenishment difference, D2 is the second preset water replenishment difference, D3 is the third preset water replenishment difference, and D4 is the fourth preset water replenishment difference, and D1 < D2 < D3 < D4.

[0038] The voltage matrix V0 of the water supply pump is preset, and V0(V1, V2, V3, V4) is set, where V1 is the first preset voltage, V2 is the second preset voltage, V3 is the third preset voltage, V4 is the fourth preset voltage, and V1 < V2 < V3 < V4.

[0039] The processing module sets the water replenishment volume of the heating network pipeline to the i-th preset water replenishment volume Fi, where i = 1, 2, 3, 4; obtains the real-time water replenishment volume F of the heating network pipeline; and sets the voltage of the water replenishment pump based on the relationship between the difference between the i-th preset water replenishment volume Fi and the real-time water replenishment volume F and the differences between each preset water replenishment volume.

[0040] When Fi-F < D1, the first preset voltage V1 is set as the voltage of the water replenishment pump;

[0041] When D1≤Fi-F<D2, the second preset voltage V2 is set as the voltage of the water supply pump;

[0042] When D2≤Fi-F<D3, the third preset voltage V3 is set as the voltage of the water replenishment pump;

[0043] When D3≤Fi-F<D4, the fourth preset voltage V4 is set as the voltage of the water replenishment pump.

[0044] In some embodiments of this application, the control system is improved so that the operation records of the control module are stored in the storage module. The control system further includes a storage module. After the module controls the water replenishment unit to make water replenishment adjustments, it generates corresponding adjustment records and records them in the storage module.

[0045] This application discloses an online monitoring and adjustment device for heating network makeup water pressure, comprising: a pressure detection unit installed on the heating network pipeline for detecting real-time makeup water pressure; a water volume detection unit installed on the heating network pipeline for detecting real-time makeup water volume; a makeup water unit for adjusting the makeup water supply to the heating network pipeline; and a control system connected to the pressure detection unit, water volume detection unit, and makeup water unit, for managing and controlling the makeup water unit. By acquiring the real-time makeup water pressure and volume of the heating network pipeline, comparing them with preset standard makeup water pressure and volume, and setting corresponding adjustment measures, the device improves work efficiency and reduces the occurrence of accidents.

[0046] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the structure of a heating network makeup water pressure online monitoring and adjustment device according to the present invention. Detailed Implementation

[0048] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0049] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the ordinary meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof, without excluding other elements or objects. The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "side," and "bottom," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are merely relational terms determined for the convenience of describing the structural relationships of the various components or elements of the present invention, and do not specifically refer to any component or element in the invention, nor should they be construed as limiting the invention. Terms such as "fixed," "connected," and "joined," etc., should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For researchers or technicians in the field, the specific meaning of the above terms in this invention can be determined according to the specific circumstances, and they should not be construed as limitations on this invention.

[0051] Example

[0052] This invention provides an online monitoring and adjustment device for heating network makeup water pressure, which solves the problem that when a leakage accident occurs in the heating network pipeline, the makeup water pressure drops rapidly and the makeup water volume suddenly increases, affecting the safe operation of the heating network system.

[0053] Figure 1 This is a schematic diagram of the structure of an online monitoring and adjustment device for heating network makeup water pressure according to the present invention, as shown below. Figure 1 As shown, the structure of the present invention includes:

[0054] A pressure detection unit is installed on the heating network pipeline to detect the real-time water supply pressure.

[0055] A water volume detection unit is installed on the heating network pipeline to detect the real-time water replenishment volume.

[0056] A water replenishment unit is used to replenish and adjust the water supply to the heating network pipeline.

[0057] A control system is connected to the pressure detection unit, the water volume detection unit, and the water replenishment unit, respectively, and the control system is used to manage and control the water replenishment unit.

[0058] The control system includes a processing module and a control module. The processing module is used to set the working status instructions of the water replenishment unit according to the real-time water replenishment data of the heating network pipeline, and the control module is used to control the water replenishment unit according to the working status instructions set by the processing module.

[0059] In some embodiments of this application, the processing module is used to obtain water replenishment data through the pressure detection unit and the water volume detection unit, and determine whether the heating network pipeline needs to be adjusted based on the water replenishment data.

[0060] The water replenishment data includes real-time water replenishment pressure and real-time water replenishment volume.

[0061] In some embodiments of this application, the processing module is preset with a standard water replenishment pressure and a standard water replenishment volume.

[0062] If the real-time water supply pressure is less than the standard water supply pressure and the real-time water supply volume is less than the standard water supply volume, then an abnormality in the heating network pipeline water supply is determined, an alarm signal is issued, and adjustments are made.

[0063] In some embodiments of this application, the specific method by which the processing module adjusts the water supply to the heating network is as follows: the processing module obtains the real-time water supply pressure of the heating network pipeline, calculates the pressure difference between the standard water supply pressure and the real-time water supply pressure, and sets the water supply volume of the heating network pipeline according to the pressure difference.

[0064] The processing module has a preset pressure difference matrix P0, which is set as P0(P1, P2, P3, P4), where P1 is the first preset pressure difference, P2 is the second preset pressure difference, P3 is the third preset pressure difference, P4 is the fourth preset pressure difference, and P1 < P2 < P3 < P4.

[0065] There is a preset water replenishment matrix F0, which is set as F0(F1, F2, F3, F4), where F1 is the first preset water replenishment, F2 is the second preset water replenishment, F3 is the third preset water replenishment, and F4 is the fourth preset water replenishment, and F1 < F2 < F3 < F4.

[0066] The water supply volume of the heating network pipeline is set according to the relationship between the pressure difference P between the standard water supply pressure and the real-time water supply pressure and each preset pressure difference.

[0067] When P < P1, the first preset water replenishment amount F1 is set as the water replenishment amount of the heating network pipeline.

[0068] When P1≤P<P2, the second preset water replenishment amount F2 is set as the water replenishment amount of the heating network pipeline.

[0069] When P2≤P<P3, the third preset water replenishment amount F3 is set as the water replenishment amount of the heating network pipeline.

[0070] When P3≤P<P4, the fourth preset water replenishment amount F4 is set as the water replenishment amount of the heating network pipeline.

[0071] In some embodiments of this application, the water replenishment unit includes a water replenishment tank, a water replenishment pump, and a frequency converter.

[0072] The water supply tank is connected to the water supply pump, which is used to supply water to the heating network pipeline. The water supply pump is connected to the frequency converter, which is used to adjust the voltage of the water supply pump.

[0073] In some embodiments of this application, the control module controls the water replenishment unit to replenish water to the heating network pipeline. Before the control module controls the water replenishment unit to replenish water, the control module further includes: detecting the real-time liquid level of the water replenishment tank, comparing it with a preset standard liquid level, and adjusting the water storage capacity of the water replenishment tank according to the standard liquid level.

[0074] In some embodiments of this application, a level monitor is installed inside the water replenishment tank, and the real-time level of the water replenishment tank is measured by the level monitor.

[0075] In some embodiments of this application, the specific method by which the processing module adjusts the water storage capacity of the water replenishment tank is as follows: the processing module obtains the real-time liquid level of the water replenishment tank, determines the liquid level difference L between the standard liquid level and the real-time liquid level, and determines the water storage adjustment amount of the water replenishment tank based on the liquid level difference.

[0076] A liquid level difference matrix L0 is preset, and L0(L1, L2, L3, L4) is set, where L1 is the first preset liquid level difference, L2 is the second preset liquid level difference, L3 is the third preset liquid level difference, L4 is the fourth preset liquid level difference, and L1 < L2 < L3 < L4.

[0077] A preset water storage adjustment matrix W0 is provided for the water replenishment tank, and W0(W1, W2, W3, W4) is set, where W1 is the first preset water storage adjustment amount, W2 is the second preset water storage adjustment amount, W3 is the third preset water storage adjustment amount, W4 is the fourth preset water storage adjustment amount, and W1 < W2 < W3 < W4.

[0078] Based on the relationship between the liquid level difference L between the standard liquid level and the real-time liquid level and each preset liquid level difference, the water storage adjustment amount of the water replenishment tank is set.

[0079] When L < L1, the first preset water storage adjustment amount W1 is set as the water storage amount of the water replenishment tank.

[0080] When L1≤L<L2, the second preset water storage adjustment amount W2 is set as the water storage amount of the water replenishment tank.

[0081] When L2≤L<L3, the third preset water storage adjustment amount W3 is set as the water storage amount of the water replenishment tank.

[0082] When L3≤L<L4, the fourth preset water storage adjustment amount W4 is set as the water storage amount of the water replenishment tank.

[0083] In some embodiments of this application, the processing module has a preset water replenishment difference matrix D0, which is set as D0(D1, D2, D3, D4), where D1 is the first preset water replenishment difference, D2 is the second preset water replenishment difference, D3 is the third preset water replenishment difference, and D4 is the fourth preset water replenishment difference, and D1 < D2 < D3 < D4.

[0084] A voltage matrix V0 of the water replenishment pump is preset, and V0(V1, V2, V3, V4) is set, where V1 is the first preset voltage, V2 is the second preset voltage, V3 is the third preset voltage, V4 is the fourth preset voltage, and V1 < V2 < V3 < V4.

[0085] The processing module sets the water replenishment volume of the heating network pipeline to the i-th preset water replenishment volume Fi, where i = 1, 2, 3, 4; obtains the real-time water replenishment volume F of the heating network pipeline; and sets the voltage of the water replenishment pump based on the relationship between the difference between the i-th preset water replenishment volume Fi and the real-time water replenishment volume F and the differences between each preset water replenishment volume.

[0086] When Fi-F < D1, the first preset voltage V1 is set as the voltage of the water replenishment pump.

[0087] When D1≤Fi-F<D2, the second preset voltage V2 is set as the voltage of the water replenishment pump.

[0088] When D2≤Fi-F<D3, the third preset voltage V3 is set as the voltage of the water replenishment pump.

[0089] When D3≤Fi-F<D4, the fourth preset voltage V4 is set as the voltage of the water replenishment pump.

[0090] In some embodiments of this application, the control system further includes a storage module. After the module controls the water replenishment unit to make water replenishment adjustments, it generates corresponding adjustment records and records them in the storage module.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A device for online monitoring and adjustment of heating network makeup water pressure, characterized in that, include: A pressure detection unit is installed on the heating network pipeline to detect the real-time water supply pressure. A water volume detection unit is installed on the heating network pipeline to detect the real-time water replenishment volume; A water replenishment unit is used to replenish and adjust the water supply to the heating network pipeline; A control system is connected to the pressure detection unit, the water volume detection unit, and the water replenishment unit, respectively, and the control system is used to manage and control the water replenishment unit. The control system includes a processing module and a control module. The processing module is used to set the working status command of the water replenishment unit according to the real-time water replenishment data of the heating network pipeline, and the control module is used to control the water replenishment unit according to the working status command set by the processing module. The processing module is pre-set with standard water replenishment pressure and standard water replenishment volume; If the real-time water supply pressure is less than the standard water supply pressure and the real-time water supply volume is less than the standard water supply volume, then the water supply to the heating network pipeline is determined to be abnormal, an alarm signal is issued and adjustments are made. The specific method by which the processing module adjusts the heating network water supply is as follows: The processing module obtains the real-time water supply pressure of the heating network pipeline, calculates the pressure difference between the standard water supply pressure and the real-time water supply pressure, and sets the water supply volume of the heating network pipeline based on the pressure difference. The processing module has a preset pressure difference matrix P0, which is set as P0(P1, P2, P3, P4), where P1 is the first preset pressure difference, P2 is the second preset pressure difference, P3 is the third preset pressure difference, P4 is the fourth preset pressure difference, and P1 < P2 < P3 < P4. A water replenishment matrix F0 is preset, and F0(F1, F2, F3, F4) is set, where F1 is the first preset water replenishment, F2 is the second preset water replenishment, F3 is the third preset water replenishment, and F4 is the fourth preset water replenishment, and F1 < F2 < F3 < F4; Based on the relationship between the pressure difference P between the standard water supply pressure and the real-time water supply pressure and each preset pressure difference, the water supply volume of the heating network pipeline is set. When P < P1, the first preset water replenishment amount F1 is set as the water replenishment amount of the heating network pipeline; When P1≤P<P2, the second preset water replenishment amount F2 is set as the water replenishment amount of the heating network pipeline; When P2≤P<P3, the third preset water replenishment amount F3 is set as the water replenishment amount of the heating network pipeline; When P3≤P<P4, the fourth preset water replenishment amount F4 is set as the water replenishment amount of the heating network pipeline.

2. The online monitoring and adjustment device for heating network makeup water pressure according to claim 1, characterized in that, The processing module is used to acquire water replenishment data through the pressure detection unit and the water volume detection unit, and determine whether the heating network pipeline needs to be adjusted based on the water replenishment data; The water replenishment data includes real-time water replenishment pressure and real-time water replenishment volume.

3. The online monitoring and adjustment device for heating network makeup water pressure according to claim 1, characterized in that, The water replenishment unit includes a water replenishment tank, a water replenishment pump, and a frequency converter; The water supply tank is connected to the water supply pump, which is used to supply water to the heating network pipeline. The water supply pump is connected to the frequency converter, which is used to adjust the voltage of the water supply pump.

4. The online monitoring and adjustment device for heating network makeup water pressure according to claim 3, characterized in that, The control module replenishes water to the heating network pipeline by controlling the water replenishment unit. Before the control module controls the water replenishment unit to replenish water, it also includes: detecting the real-time liquid level of the water replenishment tank, comparing it with the preset standard liquid level, and adjusting the water storage capacity of the water replenishment tank according to the standard liquid level.

5. The online monitoring and adjustment device for heating network makeup water pressure according to claim 4, characterized in that, The water replenishment tank is equipped with a liquid level monitor, and the real-time liquid level of the water replenishment tank is measured by the liquid level monitor.

6. The online monitoring and adjustment device for heating network makeup water pressure according to claim 4, characterized in that, The specific method by which the processing module adjusts the water storage capacity of the water replenishment tank is as follows: The processing module obtains the real-time liquid level of the water replenishment tank, determines the liquid level difference L between the standard liquid level and the real-time liquid level, and determines the water storage adjustment amount of the water replenishment tank based on the liquid level difference. A preset liquid level difference matrix L0 is provided, with L0(L1, L2, L3, L4), where L1 is the first preset liquid level difference, L2 is the second preset liquid level difference, L3 is the third preset liquid level difference, and L4 is the fourth preset liquid level difference, and L1 < L2 < L3 < L4; a preset water storage adjustment matrix W0 is provided, with W0(W1, W2, W3, W4), where W1 is the first preset water storage adjustment amount, W2 is the second preset water storage adjustment amount, W3 is the third preset water storage adjustment amount, and W4 is the fourth preset water storage adjustment amount, and W1 < W2 < W3 < W4; Based on the relationship between the liquid level difference L between the standard liquid level and the real-time liquid level and each preset liquid level difference, the water storage adjustment amount of the water replenishment tank is set; When L < L1, the first preset water storage adjustment amount W1 is set as the water storage amount of the water replenishment tank; When L1≤L<L2, the second preset water storage adjustment amount W2 is set as the water storage amount of the water replenishment tank; When L2≤L<L3, the third preset water storage adjustment amount W3 is set as the water storage amount of the water replenishment tank; When L3≤L<L4, the fourth preset water storage adjustment amount W4 is set as the water storage amount of the water replenishment tank.

7. The online monitoring and adjustment device for heating network makeup water pressure according to claim 3, characterized in that, The processing module has a preset water replenishment difference matrix D0, which is set as D0(D1, D2, D3, D4), where D1 is the first preset water replenishment difference, D2 is the second preset water replenishment difference, D3 is the third preset water replenishment difference, and D4 is the fourth preset water replenishment difference, and D1 < D2 < D3 < D4. The voltage matrix V0 of the water supply pump is preset, and V0(V1, V2, V3, V4) is set, where V1 is the first preset voltage, V2 is the second preset voltage, V3 is the third preset voltage, V4 is the fourth preset voltage, and V1 < V2 < V3 < V4. The processing module sets the water replenishment volume of the heating network pipeline to the i-th preset water replenishment volume Fi, where i = 1, 2, 3, 4; obtains the real-time water replenishment volume F of the heating network pipeline; and sets the voltage of the water replenishment pump based on the relationship between the difference between the i-th preset water replenishment volume Fi and the real-time water replenishment volume F and the differences between each preset water replenishment volume. When Fi-F < D1, the first preset voltage V1 is set as the voltage of the water replenishment pump; When D1≤Fi-F<D2, the second preset voltage V2 is set as the voltage of the water supply pump; When D2≤Fi-F<D3, the third preset voltage V3 is set as the voltage of the water replenishment pump; When D3≤Fi-F<D4, the fourth preset voltage V4 is set as the voltage of the water replenishment pump.

8. The online monitoring and adjustment device for heating network makeup water pressure according to claim 1, characterized in that, The control system also includes a storage module. After the water replenishment unit is adjusted by the control module, a corresponding adjustment record is generated and recorded in the storage module.

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