Circulating water intelligent control distribution device

Abstract

The present invention relates to the technical field of fluid delivery and distribution control, and provides a circulating water intelligent control delivery and distribution device, including: a pump group composed of a plurality of variable frequency water pumps, a water pump inlet pipe and a water pump outlet pipe respectively connected to each variable frequency water pump, a first horizontal main pipe respectively connected to each water pump inlet pipe, a second horizontal main pipe respectively connected to each water pump outlet pipe, and a variable frequency control component for controlling the head and flow of each variable frequency water pump; a first pressure detection component for detecting the pressure of the water pump inlet pipe is provided on the water pump inlet pipe; a second pressure detection component for detecting the pressure of the water pump outlet pipe and a flow meter for detecting the water flow rate of the water pump outlet pipe are provided on the water pump outlet pipe; the variable frequency control component controls the frequency conversion adjustment of each variable frequency water pump according to the water pump operation efficiency calculated based on the pressure value of the water pump inlet pipe, the pressure value of the water pump outlet pipe, and the flow value, so as to realize the efficient operation of the variable frequency water pump. The present invention can effectively reduce the energy consumption of the water pump operation, and at the same time ensure that the water pump can operate efficiently.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid delivery and distribution control, and in particular to a circulating water intelligent control delivery and distribution device. Background Art

[0002] As the application of high-efficiency computer rooms becomes more and more common, various industries have stricter control over energy conservation and carbon reduction. How to minimize the energy consumption of computer rooms is also a key research direction. In the past, water pumps and branch pipes ignored energy consumption control in order to pursue aesthetics, and the operation of water pumps was only controlled by flow demand. Therefore, traditional circulating water distribution devices cannot achieve efficient operation of water pumps, resulting in high energy consumption of water pump operation. Summary of the invention

[0003] The purpose of the present invention is to solve at least one technical problem in the background technology and to provide a circulating water intelligent control and distribution device.

[0004] To achieve the above-mentioned object, the present invention provides a circulating water intelligent control and distribution device, comprising: a pump group consisting of a plurality of variable frequency water pumps, a water pump inlet pipe and a water pump outlet pipe respectively connected to each variable frequency water pump, a first horizontal main pipe respectively connected to each water pump inlet pipe, a second horizontal main pipe respectively connected to each water pump outlet pipe, and a variable frequency control component for controlling the head and flow of each variable frequency water pump;

[0005] The water pump water inlet pipe is provided with a first pressure detection component for detecting the pressure of the water pump water inlet pipe;

[0006] The water pump outlet pipe is provided with a second pressure detection component for detecting the pressure of the water pump outlet pipe and a flow meter for detecting the water flow rate of the water pump outlet pipe;

[0007] The frequency conversion control component controls the frequency conversion adjustment of each of the variable frequency water pumps according to the water pump operation efficiency calculated based on parameters such as the pressure value of the water pump inlet pipe, the pressure value of the water pump outlet pipe, and the flow value, so as to achieve efficient operation of the variable frequency water pump.

[0008] According to one aspect of the present invention, the water pump water inlet pipe is also provided with a low resistance sewage filter and a flow meter for monitoring the fluid flow, and the first pressure detection assembly includes a first pressure sensor and a first pressure gauge;

[0009] The first pressure sensor is arranged at the water outlet end of the sewage filter, and the first pressure gauge is arranged at the water inlet end of the sewage filter.

[0010] According to one aspect of the present invention, the sewage filter is a radio frequency automatic sewage filter.

[0011] According to one aspect of the present invention, a check valve and a second valve for changing the fluid flow rate are also provided on the water outlet pipe of the water pump, and the second pressure detection assembly includes a second pressure sensor and a second pressure gauge;

[0012] The second pressure sensor is arranged at the water inlet end of the check valve, and the second pressure gauge is arranged at the water outlet end of the check valve.

[0013] According to one aspect of the present invention, the check valve is a micro-resistance slow-closing check valve.

[0014] According to one aspect of the present invention, the first valve and the second valve are eccentric semi-ball valves.

[0015] According to one aspect of the present invention, the flowmeter is a full-bore remote electromagnetic flowmeter.

[0016] According to one aspect of the present invention, the water pump operation efficiency calculated based on the pressure value of the water pump inlet pipe and the pressure value and flow value of the water pump outlet pipe is:

[0017] The pressure P1 measured by the first pressure sensor, the pressure P2 measured by the second pressure sensor, the flow rate Q measured by the flow meter, and the operating power KW of the motor for the variable frequency water pump and the efficiency eff of the motor for the variable frequency water pump measured by the smart meter are used to calculate the pressure P1 measured by the first pressure sensor, the pressure P2 measured by the second pressure sensor, the flow rate Q measured by the flow meter, and the operating power KW of the motor for the variable frequency water pump and the efficiency eff of the motor for the variable frequency water pump measured by the smart meter. m , automatically calculated variable frequency pump instantaneous efficiency eff p :

[0018] .

[0019] According to one aspect of the present invention, the variable frequency control component includes a display for displaying the pressure P1, the pressure P2, the flow rate Q and the instantaneous efficiency eff of the variable frequency water pump. p display.

[0020] According to one aspect of the present invention, the frequency conversion control component controls the frequency conversion adjustment of each of the frequency conversion water pumps according to the operating efficiency of the water pump to achieve efficient operation of the frequency conversion water pump as follows:

[0021] The pump head and flow range corresponding to the variable frequency pump operating efficiency within the high-efficiency range are determined according to the pump test performance curve. The frequency of the frequency converter in the frequency conversion control component is automatically adjusted. On the premise of meeting the most unfavorable pressure difference △P at the end of the system, the speed of the motor of the variable frequency pump is changed so that the difference between the pressure P2 and the pressure P1 and the flow Q fall within the frequency to industrial frequency operation range corresponding to the most unfavorable pressure difference △P at the end of the system, and the high-efficiency range within the range is selected.

[0022] According to one scheme of the present invention, the circulating water intelligent control and distribution device includes: a pump group composed of a plurality of variable frequency water pumps, a water pump inlet pipe and a water pump outlet pipe respectively connected to each variable frequency water pump, a first horizontal main pipe respectively connected to each water pump inlet pipe, a second horizontal main pipe respectively connected to each water pump outlet pipe, and a variable frequency control component for controlling the head and flow of each variable frequency water pump; a first pressure detection component for detecting the pressure of the water pump inlet pipe is provided on the water pump inlet pipe; a second pressure detection component for detecting the pressure of the water pump outlet pipe and a flowmeter for detecting the water flow rate of the water pump outlet pipe are provided on the water pump outlet pipe; the variable frequency control component controls the frequency adjustment of each variable frequency water pump according to the water pump operation efficiency calculated based on the pressure value of the water pump inlet pipe, the pressure value of the water pump outlet pipe and the flow value, so as to realize efficient operation of the variable frequency water pump. The present invention can reduce the resistance of the inlet and outlet pipe sections and ensure the efficient operation of the variable frequency water pump. The present invention determines the water pump head and flow range corresponding to the water pump efficiency within the high-efficiency range according to the water pump test performance curve provided by the water pump manufacturer, and automatically adjusts the frequency of the frequency converter to effectively reduce the energy consumption of the water pump operation, while ensuring that the water pump can operate efficiently.

[0023] According to one scheme of the present invention, the sewage filter is a radio frequency automatic sewage filter. With such a configuration, the water flowing through can be polarized by the induction electromagnetic field of the radio frequency automatic sewage filter, so that the calcium and magnesium ions in the water cannot combine with carbonate ions to form calcium carbonate and magnesium carbonate, thereby achieving the effect of anti-scaling and descaling. The radio frequency automatic sewage filter uses a specific frequency conversion to form a dynamic negative charge-rich layer on the inner wall of the water pipe based on the principle of "muscle attachment effect", thereby destroying the electrochemical reaction that causes rust in the pipeline, preventing the pipeline from rusting, and reducing the phenomenon of yellow water and black water. High-frequency electromagnetic waves of a specific frequency are used to penetrate the cell walls of bacteria and algae in the water, directly destroying the enzyme system on which the bacteria depend for survival, thereby achieving the purpose of sterilization and algae removal. The use of precision filtering components can effectively filter out suspended matter, impurities, some microorganisms and humus in the water to keep the water clean. The RF automatic sewage filter sets the sewage pressure difference according to the built-in pressure difference controller. When the pressure difference before and after the filter is greater than the set pressure difference, the controller controls the electric actuator of the cleaning valve to rotate 90 degrees, and the sewage valve is opened electrically to achieve automatic sewage discharge. The entire sewage discharge process does not need to shut down the circulating water system. While discharging sewage, the filter body is automatically flushed, and the system operates normally during the flushing process. That is, the role of the RF automatic sewage filter: by removing impurities and dirt in the system, reducing resistance, protecting equipment and preventing pipeline blockage, thereby improving the operating efficiency and service life of the system.

[0024] According to one solution of the present invention, the check valve is a micro-resistance slow-closing check valve. The micro-resistance slow-closing check valve has the following functions: preventing the reverse flow of the medium in the pipeline. When the fluid stops flowing, the valve will automatically close, thereby preventing the reverse flow of the medium. At the same time, it has the function of eliminating destructive water hammer to ensure the safety and stability of the system. The micro-resistance slow-closing check valve optimizes the flow path of the fluid, reduces the frequency of maintenance and replacement, and extends the service life. At the same time, it reduces the resistance of the fluid when passing through the valve, and improves the energy efficiency of the entire system. The low noise during operation is suitable for different working environments, including high temperature, high pressure and corrosive media, and can meet the needs of a variety of applications.

[0025] According to one solution of the present invention, the first valve and the second valve are eccentric hemispherical valves. Working principle of the eccentric hemispherical valve: The main components of the eccentric hemispherical valve include a valve body, a valve cover, a valve seat, a valve ball, an operating rod and a transmission device. Its working principle is based on the eccentric movement of the valve ball relative to the valve seat, so as to achieve the purpose of opening and closing the valve. When the operating rod pushes the transmission device, the valve ball rotates in an eccentric state, changing the flow rate of the fluid passing through the valve. The role of the eccentric hemispherical valve: the ball center of the valve ball does not coincide with the ball center of the valve body, but deviates by a certain distance. This design allows the valve ball to be free from the restriction of the valve seat during movement, thereby reducing the friction and wear of the valve, and improving the flow rate and control accuracy of the valve. The characteristics of the eccentric hemispherical valve ensure that when it is fully opened, the valve flow channel is unobstructed, which not only improves the efficiency of fluid passage, but also reduces the energy loss caused by local resistance. The eccentric hemispherical valve adopts an eccentric crankshaft structure, which helps to press the ball crown tightly against the valve seat through the pressure of water when the valve is closed, thereby achieving good sealing performance.

[0026] According to one solution of the present invention, the flowmeter is a full-bore remote electromagnetic flowmeter. The full-bore remote electromagnetic flowmeter has reliable flow measurement and is not affected by the flow shape of the medium in the pipeline and the installation position of the instrument. The instrument adopts a full-bore structure, built-in multiple pairs of measuring electrodes, and no pressure loss. The flowmeter adopts innovative signal analysis and processing technology to reliably output measurement values. The flowmeter can be directly installed behind the pipe elbow, which is an ideal choice for narrow installation space and skid-mounted devices. It guarantees that the measurement accuracy is not less than ±0.5%, and can reach up to ±0.2%. The instantaneous flow data and cumulative flow data can be integrated through the display screen of the frequency conversion control component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective view schematically showing a circulating water intelligent control and distribution device for high-efficiency air conditioning according to an embodiment of the present invention;

[0028] Figure 2 Schematic representation Figure 1 Side view of

[0029] Figure 3 The control and distribution principle diagram according to one embodiment of the present invention is schematically shown. DETAILED DESCRIPTION

[0030] The present invention will now be discussed with reference to exemplary embodiments. It should be understood that the embodiments discussed are only to enable those skilled in the art to better understand and thus implement the present invention, rather than implying any limitation on the scope of the present invention.

[0031] As used herein, the term “including” and variations thereof are to be interpreted as open-ended terms meaning “including, but not limited to.” The term “based on” is to be interpreted as “based, at least in part, on.” The terms “one embodiment” and “an embodiment” are to be interpreted as “at least one embodiment.”

[0032] Figure 1 A perspective view schematically showing a circulating water intelligent control and distribution device for high-efficiency air conditioning according to an embodiment of the present invention; Figure 2 Schematic representation Figure 1 Side view of Figure 3 The schematic diagram of the control and distribution principle according to an embodiment of the present invention is shown. Figure 1-Figure 3 As shown, in this embodiment, the circulating water intelligent control and distribution device includes: a pump group composed of a plurality of variable frequency water pumps 1, a water pump inlet pipe 2 and a water pump outlet pipe 3 respectively connected to each variable frequency water pump 1, a first horizontal main pipe 4 respectively connected to each water pump inlet pipe 2, a second horizontal main pipe 5 respectively connected to each water pump outlet pipe 3, and a variable frequency control component 6 for controlling the head and flow of each variable frequency water pump;

[0033] The water pump water inlet pipe 2 is provided with a first pressure detection component for detecting the water pump water inlet pipe pressure;

[0034] The water pump outlet pipe 3 is provided with a second pressure detection component for detecting the pressure of the water pump outlet pipe and a flow meter 7 for detecting the water flow rate of the water pump outlet pipe;

[0035] The frequency conversion control component 6 controls the frequency conversion adjustment of each frequency conversion water pump 1 according to the water pump operation efficiency calculated based on the pressure value of the water pump inlet pipe 2 and the pressure value of the water pump outlet pipe 3 and the flow value, so as to achieve efficient operation of the frequency conversion water pump.

[0036] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, a sewage filter 8 and a first valve 9 for changing the fluid flow rate are also provided on the water pump inlet pipe 1, and the first pressure detection assembly includes a first pressure sensor 10 and a first pressure gauge 11;

[0037] The first pressure sensor 10 is disposed at the water outlet end of the sewage filter 8 , and the first pressure gauge 11 is disposed at the water inlet end of the sewage filter 8 .

[0038] Furthermore, in this embodiment, the sewage filter is a radio frequency automatic sewage filter. Such a configuration can polarize the water flowing through the radio frequency automatic sewage filter through the induction electromagnetic field, so that the calcium and magnesium ions in the water cannot combine with carbonate to form calcium carbonate and magnesium carbonate, thereby achieving the effect of anti-scaling and descaling.

[0039] Specifically, the radio frequency automatic sewage filter uses a specific frequency conversion to form a dynamic negative charge-rich layer on the inner wall of the water pipe based on the principle of "muscle effect", thereby destroying the electrochemical reaction that causes rust in the pipe, preventing the pipe from rusting, and reducing the phenomenon of yellow water and black water. High-frequency electromagnetic waves of a specific frequency are used to penetrate the cell walls of bacteria and algae in the water, directly destroying the enzyme system on which bacteria depend for survival, achieving the purpose of sterilization and algae removal. The use of precision filtering components can effectively filter out suspended matter, impurities, some microorganisms and humus in the water to keep the water clean.

[0040] The RF automatic sewage filter sets the sewage pressure difference according to the built-in pressure difference controller. When the pressure difference before and after the filter is greater than the set pressure difference, the controller controls the electric actuator of the cleaning valve to rotate 90 degrees, and the sewage valve is opened electrically to achieve automatic sewage discharge. The entire sewage discharge process does not need to shut down the circulating water system. While discharging sewage, the filter body is automatically flushed, and the system operates normally during the flushing process. That is, the role of the RF automatic sewage filter: by removing impurities and dirt in the system, reducing resistance, protecting equipment and preventing pipeline blockage, thereby improving the operating efficiency and service life of the system.

[0041] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, a check valve 12 and a second valve 13 for changing the fluid flow rate are also provided on the water pump outlet pipe 3, and the second pressure detection assembly includes a second pressure sensor 14 and a second pressure gauge 15;

[0042] The second pressure sensor 14 is disposed at the water inlet end of the check valve 12 , and the second pressure gauge 15 is disposed at the water outlet end of the check valve 12 .

[0043] Furthermore, in this embodiment, the check valve 12 is a micro-resistance slow-closing check valve. In this embodiment, the micro-resistance slow-closing check valve plays the role of preventing the reverse flow of the medium in the pipeline. When the fluid stops flowing, the valve will automatically close, thereby preventing the reverse flow of the medium. At the same time, it has the function of eliminating destructive water hammer to ensure the safety and stability of the system. The micro-resistance slow-closing check valve optimizes the flow path of the fluid, reduces the frequency of maintenance and replacement, and extends the service life. At the same time, it reduces the resistance of the fluid when passing through the valve, and improves the energy efficiency of the entire system. The low noise during operation is suitable for different working environments, including high temperature, high pressure and corrosive media, and can meet the needs of various applications.

[0044] Further, in this embodiment, the first valve 9 and the second valve 13 are eccentric hemispherical valves. In this embodiment, the working principle of the eccentric hemispherical valve is as follows: the main components of the eccentric hemispherical valve include a valve body, a valve cover, a valve seat, a valve ball, an operating rod, and a transmission device. Its working principle is based on the eccentric movement of the valve ball relative to the valve seat, thereby achieving the purpose of opening and closing the valve. When the operating rod pushes the transmission device, the valve ball rotates in an eccentric state, changing the flow rate of the fluid through the valve. The role of the eccentric hemispherical valve is as follows: the ball center of the valve ball does not coincide with the ball center of the valve body, but deviates by a certain distance. This design allows the valve ball to be free from the restriction of the valve seat during movement, thereby reducing the friction and wear of the valve, and improving the flow rate and control accuracy of the valve. The characteristics of the eccentric hemispherical valve ensure that when it is fully opened, the valve flow channel is unobstructed, which not only improves the efficiency of fluid passage, but also reduces the energy loss caused by local resistance. The eccentric hemispherical valve adopts an eccentric crankshaft structure, which helps to press the ball crown tightly against the valve seat through the pressure of water when the valve is closed, thereby achieving good sealing performance.

[0045] Furthermore, in this embodiment, the flowmeter 7 is a full-bore remote electromagnetic flowmeter. In this embodiment, the full-bore remote electromagnetic flowmeter can measure the flow reliably and is not affected by the flow shape of the medium in the pipeline and the installation position of the instrument. The instrument adopts a full-bore structure, with multiple pairs of measuring electrodes built in, without pressure loss. The flowmeter adopts innovative signal analysis and processing technology to reliably output the measured value. The flowmeter can be directly installed behind the pipe elbow, which is an ideal choice for narrow installation space and skid-mounted devices, ensuring that the measurement accuracy is not less than ±0.5%, and can reach up to ±0.2%. The instantaneous flow data and cumulative flow data can be integrated and displayed on the display screen of the frequency conversion control component.

[0046] Furthermore, in this embodiment, a remote intelligent meter is installed on the power branch cable of the frequency conversion control component to measure the power and electricity consumption of each frequency conversion water pump in real time, and can be displayed on the display screen of the frequency conversion control component.

[0047] Further, according to an embodiment of the present invention, the water pump operation efficiency calculated based on the pressure value of the water pump inlet pipe and the pressure value of the water pump outlet pipe and the flow value is:

[0048] The pressure P1 measured by the first pressure sensor 10, the pressure P2 measured by the second pressure sensor 14, the flow rate Q measured by the flow meter 7, and the operating power KW of the motor for the variable frequency water pump and the efficiency eff of the motor for the variable frequency water pump measured by the smart meter are used to calculate the ... m , automatically calculated variable frequency pump instantaneous efficiency eff p :

[0049] .

[0050] Further, in this embodiment, as described above, the frequency conversion control component 6 includes a display for displaying the pressure P1, the pressure P2, the flow rate Q and the instantaneous efficiency eff of the frequency conversion water pump. p display.

[0051] Further, according to an embodiment of the present invention, the frequency conversion control component 6 controls the frequency conversion adjustment of each frequency conversion water pump 1 according to the water pump operation efficiency, so as to realize the efficient operation of the frequency conversion water pump 1 as follows:

[0052] According to the pump test performance curve provided by the pump manufacturer, the pump head and flow range corresponding to the operating efficiency of the variable frequency pump within the high-efficiency range are determined. Through the automatic adjustment of the frequency converter in the frequency conversion control component, the speed of the motor of the variable frequency pump is changed on the premise of meeting the most unfavorable pressure difference △P at the end of the system, so that the difference between the pressure P2 and the pressure P1 (pump head) and the flow Q fall within the frequency corresponding to the most unfavorable pressure difference at the end of the system (the most unfavorable end pressure difference of the system) △P to the industrial frequency operation range, and the high efficiency range within the range is selected.

[0053] According to the above scheme of the present invention, the present invention can achieve the reduction of the resistance of the inlet and outlet pipe sections and the efficient operation of the variable frequency water pump. The present invention determines the water pump head and flow range corresponding to the water pump efficiency in the high-efficiency range according to the water pump test performance curve provided by the water pump manufacturer, and automatically adjusts the frequency of the frequency converter to effectively reduce the energy consumption of the water pump operation, while ensuring that the water pump can operate efficiently.

[0054] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. The circulating water intelligent control and distribution device is characterized by: include: A pump group consisting of a plurality of variable frequency water pumps, a water pump inlet pipe and a water pump outlet pipe respectively connected to each variable frequency water pump, a first horizontal main pipe respectively connected to each water pump inlet pipe, a second horizontal main pipe respectively connected to each water pump outlet pipe, and a variable frequency control component for controlling the head and flow of each variable frequency water pump; The water pump inlet pipe is provided with a first pressure detection component and a sewage filter for detecting the pressure of the water pump inlet pipe; The water pump outlet pipe is provided with a second pressure detection component for detecting the pressure of the water pump outlet pipe, a flow meter for detecting the water flow rate of the water pump outlet pipe, and a check valve; The frequency conversion control component controls the frequency conversion adjustment of each of the frequency conversion water pumps according to the water pump operation efficiency calculated based on the pressure value of the water pump inlet pipe, the pressure value of the water pump outlet pipe and the flow value, so as to achieve efficient operation of the frequency conversion water pump; The first pressure detection assembly includes a first pressure sensor, and the first pressure sensor is arranged at the water outlet end of the sewage filter; The second pressure detection assembly includes a second pressure sensor, and the second pressure sensor is arranged at the water inlet end of the check valve; The water pump operating efficiency calculated based on the pressure value of the water pump inlet pipe, the pressure value of the water pump outlet pipe and the flow value is: The instantaneous efficiency effp of the variable frequency water pump is automatically calculated by using the pressure P1 measured by the first pressure sensor, the pressure P2 measured by the second pressure sensor, the flow rate Q measured by the flow meter, and the operating power KW of the motor for the variable frequency water pump and the efficiency effm of the motor for the variable frequency water pump measured by the smart meter: ； The frequency conversion control component controls the frequency conversion adjustment of each of the frequency conversion water pumps according to the operating efficiency of the water pump to achieve efficient operation of the frequency conversion water pump as follows: The pump head and flow range corresponding to the variable frequency pump operating efficiency within the high-efficiency range are determined according to the pump test performance curve. The frequency of the frequency converter in the frequency conversion control component is automatically adjusted. On the premise of meeting the most unfavorable pressure difference △P at the end of the system, the speed of the motor of the variable frequency pump is changed so that the difference between the pressure P2 and the pressure P1 and the flow Q fall within the frequency to industrial frequency operation range corresponding to the most unfavorable pressure difference △P at the end of the system, and the high-efficiency range within the range is selected.

2. The circulating water intelligent control and distribution device according to claim 1 is characterized in that: The water pump water inlet pipe is also provided with a first valve for changing the fluid flow rate, and the first pressure detection assembly also includes a first pressure gauge; The first pressure gauge is arranged at the water inlet end of the sewage filter.

3. The circulating water intelligent control and distribution device according to claim 2 is characterized in that: The sewage filter is a radio frequency automatic sewage filter.

4. The circulating water intelligent control and distribution device according to claim 2 is characterized in that: The water pump outlet pipe is also provided with a second valve for changing the fluid flow rate, and the second pressure detection component includes a second pressure gauge; The second pressure gauge is arranged at the water outlet end of the check valve.

5. The circulating water intelligent control and distribution device according to claim 4 is characterized in that: The check valve is a micro-resistance slow-closing check valve.

6. The circulating water intelligent control and distribution device according to claim 4 is characterized in that: The first valve and the second valve are eccentric semi-ball valves.

7. The circulating water intelligent control and distribution device according to claim 1 is characterized in that: The flow meter is a full-bore remote electromagnetic flow meter.

8. The circulating water intelligent control and distribution device according to claim 1, characterized in that: The variable frequency control component includes a display screen for displaying the pressure P1, the pressure P2, the flow rate Q and the instantaneous efficiency effp of the variable frequency water pump.

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