WO2021147323A1 - Comprehensive energy optimization control method for park - Google Patents

Abstract

A comprehensive energy optimization control method for a park. The method comprises five control methods, which respectively are bath water supplement control, bath heating circulation control, primary pipe network circulation heating control, heating pipe network circulation heating control and heating pipe network water supplement control. An electromagnetic valve, a water supplement pump, a circulating pump and a frequency converter are arranged in a system, and the system further has functions of bath water supplement and heating water supplement, and can issue an alarm when liquid level and pressure are lower than limit values. An electric boiler is used as a common heat source of an integrated bath hot water supply system and a heating system, thereby saving equipment expense and saving energy.

Description

A comprehensive energy optimization control method for parks Technical field

The invention relates to the technical field of energy control, in particular to a comprehensive energy optimization control method for a park.

Background technique

Energy is a material resource in nature that can provide some form of energy for mankind. At present, the world is in a state of energy shortage. Today, when global energy is increasingly depleted, energy conservation and emission reduction have always been the top priority of the country’s work. Energy conservation is of great significance to China’s sustainable development. Parks are energy-consuming. As a public area, whether it is a teaching park or a family area, whether the large households can maximize the use of energy and improve the utilization rate of energy has become a matter of great concern to many units. On the other hand, haze weather has become a common phenomenon of urban pollution, especially in winter, and coal-fired heating is the most important source of pollution. The heating capacity of northern cities is insufficient in winter. The heating is mainly coal-fired, and the proportion of clean heating is low, which affects the urban landscape phenomenon. Therefore, energy conservation and environmental protection are equally important when optimizing the energy control system of the park. Most of the existing integrated energy control systems in the park are unable to not only maximize the use of energy to improve system functions, but also protect the environment and reduce air pollution.

The invention patent with application number CN105299733A discloses an integrated heating system and hot water supply system composed of an electric boiler as a common heat source. Although it can obtain two independent hot water systems for heating and domestic water supply, the The patent has the following shortcomings: First, there is no corresponding bath water replenishment control, heating pipe network replenishment control, only hot water heating, insufficient function, systematization, and insufficient use of energy; second, heating When the water is heated and supplied, the pressure value in the heat preservation hot water tank is not monitored, and the function is not safe enough.

The utility model patent with the application number CN206958985U discloses an energy-saving coal-fired heating stove. Although it can quickly heat and save energy, the patent does not meet the environmental protection requirements, burns a large amount of coal, and seriously pollutes the atmospheric environment. Compared with this patent, if an electric boiler is used as a heat source, it has the following advantages: no pollution to the environment, no emissions of three wastes, clean and no noise, simple operation, convenient maintenance, high degree of automation, normal pressure operation, safe and reliable, easy to control, etc. advantage. The electric boiler uses a metal tubular electric heater to heat the water so that electric energy is directly converted into thermal energy (to produce hot water or steam). There is no need to use combustion to convert chemical energy into heat, and there is no need to supply air and fuel for combustion, and no harmful gases and ash are emitted, which fully meets environmental protection requirements.

Technical solutions

In view of the above-mentioned shortcomings of the prior art, the present invention provides a comprehensive energy optimization control method for the park. This method can not only provide heating, but also provide better bath hot water, bath water replenishment, heating water replenishment and circulating heating, which can optimize the existing The park's integrated energy control system is also energy-saving and environmentally friendly.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a comprehensive energy optimization control method for the park, the method includes bath water replenishment control method, bath heating cycle control method, primary pipe network cycle heating control method, heating pipe network cycle Heating control method and heating pipe network water supplement control method;

The bath water replenishment control method controls the start and stop of the bath circulation pump and the bath water replenishment solenoid valve switch to realize the bath water replenishment control by reading the value of the liquid level of the bath replenishing tank, and the process is as follows:

The bath water replenishment control module is activated by the remote control platform, which is set with the upper and lower limits of the bath water replenishment tank liquid level; read the bath water replenishment tank liquid level value, if the bath water replenishment tank liquid level value is lower than the upper limit, start bathing Replenish water circulation pump, open the bath water replenishment solenoid valve to replenish the bath water replenishment tank, read the water replenishment tank level value again after replenishing water, if the water replenishment tank level value is higher than the upper limit, close the bath water replenishment solenoid valve; if bathing water replenishment If the tank liquid level value is lower than the upper limit value, continue bathing water replenishment; if the bath water replenishing tank liquid level value is lower than the lower limit value, stop the bath water replenishing circulating pump, turn off the bath water replenishing solenoid valve, issue an alarm and wait for the system to reset.

The bath heating cycle control method controls the start and stop of the bath circulation pump and the bath heating solenoid valve switch by reading the temperature value of the heat preservation hot water tank and the pressure value of the heat preservation hot water tank to realize bath heating cycle control and heat preservation hot water tank pressure monitoring. The process is as follows:

The bath heating cycle control module is started by the remote control platform. The module is set with the upper and lower limits of the temperature of the heat preservation hot water tank and the upper and lower limits and lower values of the pressure of the heat preservation hot water tank; read the temperature of the heat preservation hot water tank, if the temperature If the temperature is higher than the set upper limit, the bath circulation pump will be stopped, and the bath heating solenoid valve will be closed; if the temperature is lower than the set lower limit, the pressure value of the heat preservation hot water tank will be read, if the pressure value is lower than the set low value Turn on the bath heating solenoid valve and start the bath circulating pump; if the pressure value exceeds the set upper limit, stop the bath heating circulating pump and close the bath heating solenoid valve; if the pressure value is lower than the set lower limit, stop the bath circulating pump. Raise an alarm and wait for the system to reset.

The primary pipe network circulating heating control method controls the start and stop of the primary heating pump by reading the state of the bath circulating pump, and at the same time monitors the operating temperature value of the primary pipe network, the operating state of the direct heating furnace, and the operating state of the regenerator to realize the circulating heating of the pipe network. The control process is as follows:

The remote control platform starts a pipe network circulating heating control module to detect whether the bath circulating pump is running. If the bath circulating pump is not running, stop the heating pump once, otherwise it is judged that the system is in water supplement mode or heating mode at this time; if it is in heating mode Read the operating temperature of the pipe network, read the operating status of the direct heating furnace and the regenerative furnace; send the above-mentioned sampling record data to the remote control platform to monitor the data in real time , To avoid the failure of the entire system.

The heating pipe network circulating heating control method controls the heating heating circulating pump state and the heating pipe valve opening degree by reading the three parameter variables of the inlet water temperature value, the return water temperature value and the operating parameters of the regenerator to perform heating. Circulating heating control of pipe network, the process is as follows:

The remote control platform starts the heating pipe network circulating heating control module, which is equipped with an energy-saving program; reads the secondary side inlet water temperature, return water temperature and flow value, and calculates the actual heat consumption value on the user side; according to the average outdoor temperature And the operating curve diagram of the heating system (the corresponding value of the specific curve, different parks can adjust the setting), obtain the size of the water supply temperature required by the actual operation, and reset the water supply temperature; according to the set temperature, The energy-saving program controls the valve opening of the heating pipeline and the rotation speed of the heating pipe network circulating heat pump; and transmits the collected inlet water temperature value, return water temperature value, and operating parameters of the regenerator to the remote control platform to perform real-time data monitor.

The heating pipe network water replenishment control method controls the state of the heating water replenishing circulating pump by reading the two parameter variables of the inlet water pressure value and the return water pressure value, and performs the heating pipe network water replenishment control, and the process is as follows:

The remote control platform starts the heating pipe network water replenishment control module, and the pressure transmitter installed at the return pipe of the heating pipe network feeds back the measured return water pressure value to the controller in the frequency converter, and the pressure set value signal In comparison, the control unit calculates and outputs the signal to the inverter, and the inverter increases or decreases the frequency accordingly according to the signal, and automatically outputs the voltage frequency required by the heating and water circulation pump, and changes the rotation speed of the heating and water circulation pump to make The water supply volume changes accordingly; the two parameter variables of the collected water inlet pressure value and the return water pressure value are transmitted to the remote control platform to monitor the data in real time.

Beneficial effect

The beneficial effects produced by adopting the above technical solutions are:

(1) The present invention uses an electric boiler as the shared heat source of the integrated bathing hot water supply system and the heating system. The solenoid valve, make-up pump, circulating pump, and frequency converter can be set up to fully utilize and perform the system functions. Bathing water replenishment, heating water replenishment function, when the liquid level and pressure are lower than the limit value, an alarm will be issued. This integrated structure facility better optimizes the park's integrated energy control system, saves equipment costs and saves energy;

(2) The number of electric boilers connected in series can be determined according to the amount of hot water supply and the size of the heating area. Each electric boiler is equipped with an automatic controller to automatically control electricity consumption and save resources;

(3) Set a pressure sensor to monitor the pressure and a temperature sensor to monitor the temperature in the system, which is efficient, intelligent, convenient, flexible and convenient to use, and has strong practicability;

(4) The electric boiler does not need to use combustion to convert chemical energy into heat, and it does not need to supply air and fuel required for combustion, and will not emit harmful gases and ash, protect the environment and reduce air pollution.

Description of the drawings

Figure 1 is a structural diagram of a park integrated energy control system in an embodiment of the present invention;

Figure 2 is a topological diagram of the park integrated energy control system in the embodiment of the present invention;

Figure 3 is a flowchart of a bath water replenishment control method in an embodiment of the present invention;

4 is a flowchart of a bath heating cycle control method in an embodiment of the present invention;

Fig. 5 is a flow chart of a method for controlling heating in a cycle of a pipe network in an embodiment of the present invention;

Fig. 6 is a flowchart of a method for circulating heating control of a heating pipe network in an embodiment of the present invention;

Fig. 7 is a flowchart of a method for controlling water replenishment of a heating pipe network in an embodiment of the present invention.

Embodiments of the present invention

The specific implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

The structure diagram of the park integrated energy control system of this embodiment is shown in Figure 1, and its topology is shown in Figure 2. The control system structure includes an electric boiler, bathing board exchange, heating board exchange, heat preservation hot water tank, and bathing water supply tank. , The electric heating boiler is connected to the bathing plate exchange and the heating plate exchange through a circulating pipeline, and the return water pipeline of the electric heating boiler is equipped with primary heating pumps B3-1 and B3-2, and a primary make-up pump B3-3 , The bath plate changer is connected to the heat preservation hot water tank through a pipeline, the heat preservation hot water tank is respectively connected to the heating plate changer and bath water supplement tank through the pipeline, and the heat preservation hot water tank is connected to the heat preservation hot water tank. Bathing circulation pumps B4-1 and B4-2 are arranged in the pipeline connected to the heating plate, and the hot water supply pipeline connected to the terminal water equipment is arranged on the heat preservation hot water tank. Normally, the 1# furnace is dedicated to For heating, 2# and 3# furnaces are used for both heating and domestic hot water supply control, that is, bathing system. The 1# board is replaced by domestic hot water board, and the 2# board is replaced by heating board.

The electric boiler has the characteristics of high thermal efficiency, no pollution, and low energy consumption. It is composed of at least one electric boiler connected in series, and an electric heater is installed in the electric boiler tank. The electric heater is connected with an automatic control circuit and a power supply. Powered by the control circuit, all the heat converted by the electricity is supplied to the water. There is no heat loss, no three wastes, no pollution, and at the same time it has the characteristics of safety and reliability, convenient maintenance, long service life, and wide application range.

A comprehensive energy optimization control method for a park, the method includes a bath water replenishment control method, a bath heating cycle control method, a primary pipe network cycle heating control method, a heating pipe network cycle heating control method, and a heating pipe network water replenishment control method;

In this embodiment, the tap water of the bath water replenishment control part flows through the cold water meter and is stored in the bath water replenishment tank. The water outlet pipe of the bath water replenishment tank is connected to the bath heating cycle control part, and is respectively connected to the bath cycle through solenoid valves D4-1 and D4-2. The pump and the heat preservation hot water tank constitute the bath water replenishment control part. The process of this part of the control method is shown in Figure 3. The process is as follows:

The remote control platform activates the bath water replenishment control module, which is set with the upper and lower limits of the bath water replenishment tank; the pressure sensor P5-1 reads the pressure value of the bath water replenishment tank to calculate the liquid level value of the bath water replenishment tank. If the liquid level value of the bath make-up tank is lower than the upper limit, start the bath make-up circulation pump B4-1, turn on the bath make-up solenoid valve D4-2 and close D4-1 to make up the bath make-up tank, and read the make-up again after making up the water Tank liquid level value. If the water replenishment tank level value is higher than the upper limit value, the bath water replenishment solenoid valve 4-2 will be closed and D4-1 will be opened; if the bath water replenishment tank liquid level value is lower than the upper limit value, continue bathing replenishment; If the liquid level value of the bath make-up tank is lower than the lower limit, stop the bath make-up circulation pump, close the bath make-up solenoid valve, issue an alarm and wait for the system to reset.

In this embodiment, the 2# furnace and the 3# furnace in the bath heating cycle control part are exchanged through the 1# plate. After the heat exchange, the user of the bath hot water is supplied. When the 1# plate exchange fails, the valve is switched and used for heating. 2# plate replacement, switch to domestic hot water, and cut off and cancel the 2# plate replacement heating function. The 1# plate changer is connected to the bathing circulating pumps B4-1 and B4-2, the connection is equipped with a pressure gauge, the bathing circulating pump is connected to the thermal insulation hot water tank with a pipeline, and solenoid valves D4-1 and D4-2 are provided on the pipeline, A temperature sensor T5-1 and a pressure sensor P5-1 are arranged in the heat preservation hot water tank, which are respectively used to measure the temperature and pressure in the heat preservation hot water tank, thereby forming a bath heating cycle control part. The process of this part of the control method is shown in Figure 4, and the process is as follows:

The bath heating cycle control module is started by the remote control platform. The module is set with the upper and lower limits of the temperature of the heat preservation hot water tank and the upper and lower limits and lower values of the pressure of the heat preservation hot water tank; the temperature sensor T5-1 reads the heat preservation hot water If the temperature of the tank is higher than the set upper limit, stop the bath circulation pumps B4-1 and B4-2, and close the bath heating solenoid valve D4-1; if the temperature is lower than the set lower limit, the pressure sensor P5-1 reads the pressure value of the heat preservation hot water tank, if the pressure value is lower than the set low value, open the bath heating solenoid valve D4-1 and close D4-2, start the bath circulation pump; if the pressure value exceeds the set upper limit Value, stop bath heating circulating pumps B4-1 and B4-2, and close bath heating solenoid valve D4-1; if the pressure value is lower than the set lower limit, stop bathing circulating pumps B4-1 and B4-2, send out an alarm and Wait for the system to reset.

In this embodiment, the electric boiler of the circulating heating control part of the primary pipe network is equipped with a temperature sensor T3-1 on the outlet pipe connected to the plate changer, and the return pipe is equipped with primary heat pumps B3-1 and B3-2, and a primary water supply Pump B3-3, a pressure sensor P3-1 is connected to the primary water make-up pump to monitor the pressure value in real time, thereby forming the primary pipe network circulating heating control part. The process of this part of the control method is shown in Figure 5, and the process is as follows:

The remote control platform starts a pipe network circulation heating control module to detect whether the bath circulating pumps B4-1 and B4-2 are running. If the bath circulating pumps are not running, stop the heating pumps B3-1 and B3-2 once, otherwise judge this When the system is in water supply mode or heating mode; if in heating mode, start the heat pumps B3-1 and B3-2 once, otherwise stop the heat pumps B3-1 and B3-2 once; read by the temperature sensor T3-1 Once the operating temperature of the pipe network, read the operating status of the direct heating furnace and the regenerative furnace, including: phase current, phase voltage, fan frequency and furnace temperature; transmit the above-mentioned sampling record data to the remote control platform to monitor the data in real time, Avoid failure of the entire system.

In this embodiment, the water outlet pipe of the regenerative furnace controlled by the circulation heating of the heating pipe network is connected to the water separator through a pipeline, and the pipeline is respectively provided with a temperature sensor T2-1 and a pressure sensor P2-1. The outlet pipe is equipped with multiple pressure gauges, temperature gauges, exhaust valves and safety valves in the downstream direction. The branch loop water supply and return pipes are equipped with copper ball valves and other shut-off valves. The heat storage furnace return pipe is equipped with a collector. The water tank is connected with a filter and a voltage stabilizing device before the water collector. The purpose of the filter is to prevent impurities from clogging the heating tube. The purpose of the voltage stabilizing device is to prevent the water pressure from being affected by the expansion and contraction of the water pressure. The pressure device is connected to the heating and heating circulation pumps B2-1 and B2-2 through pipelines. The pipelines are respectively equipped with pressure sensors P2-2 and temperature sensors T2-2. The water flow first flows through the circulation pump, and then flows into the supply from the water return port. Thermal system. The water collector and divider play the role of distributing the water flow to each branch, and the water collector plays the role of collecting the water flow from each branch and loop. The water divider and the water collector are used to facilitate the connection of the various water loops. Parallel pipelines are set up to have a pressure equalizing effect to make the flow distribution evenly, thus forming the cyclic heating control part of the heating pipe network. The process of this part of the control method is shown in Figure 6, and the process is as follows:

The remote control platform starts the heating pipe network circulating heating control module, which is equipped with an energy-saving program; reads the secondary side inlet water temperature, return water temperature and flow value, and calculates the actual heat consumption value on the user side; according to the average outdoor temperature And the operation curve diagram of the heating system in the park, obtain the size of the water supply temperature required for actual operation, and reset the water supply temperature; according to the set temperature, the energy-saving program controls the opening of the heating pipe valve and the heating pipe The speed of the grid circulation heat pump B2-1 and B2-2; and the temperature sensor T2-1 and the temperature sensor T2-2 collect the inlet water temperature value and the return water temperature value, and the operating parameters of the regenerator and transmit them to the remote control platform. , Real-time monitoring of data.

In this embodiment, the tap water controlled by the water supply of the heating pipe network is stored in the softened water make-up tank through the pipeline. The pipeline is equipped with a gate valve, a cold water meter, and a pressure gauge. The gate valve is closed, the tap water flows into the make-up tank, and the softened make-up tank passes through the pipeline. It is connected with the heating and make-up pumps B2-3 and B2-4, and a ball valve is installed on the pipeline. Keep the system pressure stable. If the system is lower than the set pressure, the constant-pressure water replenishment device water replenishment pump will run to increase the system pressure. If the pressure reaches the set pressure of the system, the water replenishment pump will stop running to form the water replenishment control part of the heating network. The process of this part of the control method is shown in Figure 7, and the process is as follows:

The heating pipe network water replenishment control module is activated by the remote control platform, and the pressure sensor P2-2 installed at the return pipe of the heating pipe network feeds back the measured return water pressure value to the controller in the inverter, and the pressure setting value The signal is compared, and if the pressure is lower than the set pressure after calculation by the control unit, the output signal is sent to the inverter, and the frequency is increased by the inverter, and it is automatically output to the voltage frequency required by the heating and water circulating pumps B2-3 and B2-4. Increase the rotational speed of the heating and supplementary water circulation pumps B2-3 and B2-4 to increase the water supplement; if the backwater pressure measured by the pressure sensor P2-2 at the return pipe reaches the pressure set by the system, the supplementary water circulation pump B2-3 and B2-4 stop running. And the pressure sensors P2-1 and P2-2 collect the two parameter variables of the inlet water pressure value and the return water pressure value respectively and send them to the remote control platform to monitor the data in real time.

Claims (6)

1. A comprehensive energy optimization control method for a park, which is characterized in that it includes a bath water replenishment control method, a bath heating cycle control method, a primary pipe network cycle heating control method, a heating pipe network cycle heating control method, and a heating pipe network water replenishment control method;

   The bath water replenishment control method controls the start and stop of the bath circulation pump and the bath water replenishment solenoid valve switch to realize the bath water replenishment control by reading the value of the liquid level of the bath water replenishment tank;

   The bath heating cycle control method controls the start and stop of the bath circulating pump and the bath heating solenoid valve switch to realize bath heating cycle control and heat preservation hot water tank pressure monitoring by reading the temperature value of the heat preservation hot water tank and the pressure value of the heat preservation hot water tank;

   The primary pipe network circulating heating control method controls the start and stop of the primary heating pump by reading the state of the bath circulating pump, and at the same time monitors the operating temperature value of the primary pipe network, the operating state of the direct heating furnace, and the operating state of the regenerator to realize the circulating heating of the pipe network. control;

   The heating pipe network circulating heating control method controls the heating heating circulating pump state and the heating pipe valve opening degree by reading the three parameter variables of the inlet water temperature value, the return water temperature value and the operating parameters of the regenerator to perform heating. Circulation heating control of pipe network;

   The heating pipe network water replenishment control method controls the state of the heating water replenishment circulating pump by reading the two parameter variables of the inlet water pressure value and the return water pressure value, and performs water replenishment control of the heating pipe network.
2. A comprehensive energy optimization control method for a park according to claim 1, characterized in that: the process of controlling the start and stop of the bath circulation pump and the opening and closing of the bath water replenishment solenoid valve by reading the value of the bath water replenishment tank liquid level is as follows:

   The bath water replenishment control module is activated by the remote control platform, which is set with the upper and lower limits of the bath water replenishment tank liquid level; read the bath water replenishment tank liquid level value, if the bath water replenishment tank liquid level value is lower than the upper limit, start bathing Replenish water circulation pump, open the bath water replenishment solenoid valve to replenish the bath water replenishment tank, read the water replenishment tank level value again after replenishing water, if the water replenishment tank level value is higher than the upper limit, close the bath water replenishment solenoid valve; if bathing water replenishment If the tank liquid level value is lower than the upper limit value, continue bathing water replenishment; if the bath water replenishing tank liquid level value is lower than the lower limit value, stop the bath water replenishing circulating pump, turn off the bath water replenishing solenoid valve, issue an alarm and wait for the system to reset.
3. A comprehensive energy optimization control method for a park according to claim 1, characterized in that: the start and stop of the bath circulation pump and the bath heating solenoid valve are controlled by reading the temperature value of the heat preservation hot water tank and the pressure value of the heat preservation hot water tank The switching process is as follows:

   The bath heating cycle control module is started by the remote control platform. The module is set with the upper and lower limits of the temperature of the heat preservation hot water tank and the upper and lower limits and lower values of the pressure of the heat preservation hot water tank; read the temperature of the heat preservation hot water tank, if the temperature If the temperature is higher than the set upper limit, the bath circulation pump will be stopped, and the bath heating solenoid valve will be closed; if the temperature is lower than the set lower limit, the pressure value of the heat preservation hot water tank will be read, if the pressure value is lower than the set low value Turn on the bath heating solenoid valve and start the bath circulating pump; if the pressure value exceeds the set upper limit, stop the bath heating circulating pump and close the bath heating solenoid valve; if the pressure value is lower than the set lower limit, stop the bath circulating pump. Raise an alarm and wait for the system to reset.
4. A comprehensive energy optimization control method for a park according to claim 1, characterized in that: the start and stop of the primary heating pump is controlled by reading the state of the bath circulating pump, and the operating temperature value of the primary pipe network and the operation of the direct heating furnace are monitored at the same time. The process of status and operating status of the regenerative furnace is as follows:

   The remote control platform starts a pipe network circulating heating control module to detect whether the bath circulating pump is running. If the bath circulating pump is not running, stop the heating pump once, otherwise it is judged that the system is in water supplement mode or heating mode at this time; if it is in heating mode Read the operating temperature of the pipe network, read the operating status of the direct heating furnace and the regenerative furnace; send the above-mentioned sampling record data to the remote control platform to monitor the data in real time , To avoid the failure of the entire system.
5. A comprehensive energy optimization control method for a park according to claim 1, characterized in that: the heating and heating are controlled by reading three parameter variables: the value of the inlet water temperature, the value of the return water temperature, and the operating parameters of the regenerative furnace. The process of circulating pump status and heating pipe valve opening is as follows:

   The remote control platform starts the heating pipe network circulating heating control module, which is equipped with an energy-saving program; reads the secondary side inlet water temperature, return water temperature and flow value, and calculates the actual heat consumption value on the user side; according to the average outdoor temperature And the operating curve of the heating system, obtain the size of the water supply temperature required by the actual operation, and reset the water supply temperature; according to the set temperature, the energy-saving program controls the opening of the heating pipe valve and the heating pipe network The rotation speed of the circulating heat pump; and the collected water inlet temperature value, return water temperature value, and operating parameters of the regenerative furnace are transmitted to the remote control platform to monitor the data in real time.
6. A comprehensive energy optimization control method for a park according to claim 1, characterized in that: the process of controlling the state of the heating supplement water circulating pump by reading the two parameter variables of the inlet water pressure value and the return water pressure value is as follows:

   The remote control platform starts the heating pipe network water replenishment control module, and the pressure transmitter installed at the return pipe of the heating pipe network feeds back the measured return water pressure value to the controller in the frequency converter, and the pressure set value signal In comparison, the control unit calculates and outputs the signal to the inverter, and the inverter increases or decreases the frequency accordingly according to the signal, and automatically outputs the voltage frequency required by the heating and water circulation pump, and changes the rotation speed of the heating and water circulation pump to make The water supply volume changes accordingly; the two parameter variables of the collected water inlet pressure value and the return water pressure value are transmitted to the remote control platform to monitor the data in real time.