Heating system for improving the efficiency of a water pump

Abstract

The utility model relates to the field of heat supply provides a kind of for promoting the heat supply system of water pump operating efficiency. For promoting the heat supply system of water pump operating efficiency includes primary network group;Secondary network group, secondary network group and primary network group heat coupling connection;Circulating pump group, it is set between primary network group and secondary network group, circulating pump group includes at least three pump bodies of different working frequency;Flow detection piece, it is set in the export of circulating pump group, and flow detection piece is used to generate circulating flow signal;Pressure detection piece, it is set in the import and export of circulating pump group, and pressure detection piece is used to generate the import and export pressure signal of circulating pump group;Control piece, with flow detection piece and pressure detection piece electric connection, control piece is used to control pump body based on circulating flow signal and import and export pressure signal.The heat supply system for promoting the water pump operating efficiency can accurately control the number of operation and rotating speed of different working frequency pump body in circulating pump group, and improve energy utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heating, and provides a heating system for improving the operating efficiency of water pumps. Background Technology

[0002] With the acceleration of urbanization in my country, the importance of centralized heating systems has become increasingly prominent. They not only improve the quality of life for urban residents, but also greatly improve the quality of the urban environment.

[0003] In this context, the operating efficiency of heat exchange stations, as a core component of centralized heating systems, directly affects the energy consumption and heating effect of the entire system.

[0004] Currently, a common practice in pump selection and operation adjustment is to use pumps of the same model in parallel. While this configuration is simple and easy to implement, it presents several problems in actual operation. Typically, pumps of the same model, when operating in parallel, struggle to adapt to the optimal operating conditions under different pipe network characteristics, resulting in low average pump efficiency. This inefficient operation not only causes significant energy waste but also increases the system's operating costs. Utility Model Content

[0005] This utility model provides a heating system for improving the operating efficiency of water pumps, thereby solving the problem of low energy utilization efficiency in heating systems in related technologies.

[0006] This utility model embodiment provides a heating system for improving the operating efficiency of water pumps, comprising:

[0007] One-time network management group;

[0008] A secondary network management group, which is thermally coupled to the primary network management group;

[0009] A circulating pump set is disposed between the primary network pipe set and the secondary network pipe set, and the circulating pump set includes at least three pump bodies with different operating frequencies;

[0010] A flow detection element is disposed at the outlet of the circulating pump unit, and the flow detection element is used to generate a circulating flow signal;

[0011] A pressure detection element is installed at the inlet and outlet of the circulating pump group, and the pressure detection element is used to generate inlet and outlet pressure signals of the circulating pump group.

[0012] A control unit, electrically connected to the flow detection unit and the pressure detection unit, is used to control the pump body based on the circulating flow signal and the inlet and outlet pressure signals.

[0013] According to one embodiment of the present invention, at least three pump bodies are connected in parallel via a parallel pipeline, the parallel pipeline including a fluid inlet and a fluid outlet, the fluid inlet being in fluid communication with the secondary network pipe group, and the fluid outlet being in fluid communication with the flow detection element.

[0014] According to one embodiment of the present invention, each pump body is provided with a valve at its inlet and at its outlet, and the valve is electrically connected to the control component.

[0015] According to one embodiment of the present invention, the secondary network management group includes:

[0016] A secondary water supply pipe is fluidly connected to the user end, and a water distributor is installed between the secondary water supply pipe and the user end.

[0017] A secondary network return water pipe is provided, which is in fluid communication with the user end, and a water collector is provided between the secondary network return water pipe and the user end.

[0018] According to one embodiment of the present invention, a dirt remover is provided between the water collector and the circulating pump group.

[0019] According to one embodiment of the present invention, the pressure detection element is disposed between the dirt separator and the circulating pump group, and between the circulating pump group and the flow detection element.

[0020] According to one embodiment of the present invention, it further includes a water replenishment tank, which is in fluid communication with the secondary network return water pipe through a water replenishment pipeline.

[0021] According to one embodiment of the present invention, a water supply pump is provided on the water supply pipeline.

[0022] According to one embodiment of the present invention, the outlet of the water distributor is provided with multiple branch water supply pipes, and the inlet pipe of the water collector is provided with multiple branch return pipes.

[0023] According to one embodiment of the present invention, the secondary network pipe group and the primary network pipe group are thermally coupled together via a heat exchanger.

[0024] The heating system for improving water pump operating efficiency provided by this utility model embodiment constructs a data sensing network through flow and pressure detection devices, transmitting circulating flow signals and inlet / outlet pressure signals to the control unit in a timely manner. The control unit, considering current heating demand, corresponding pipeline characteristics, and the pump's own characteristics, precisely adjusts the number and speed of pumps operating at different frequencies within the circulating pump group. While ensuring stable and high-quality heating, it keeps the pumps operating within their high-efficiency range, avoiding energy waste caused by power redundancy or improper matching, and significantly reducing the overall system energy consumption. Compared to the extensive operation mode of traditional heating systems for improving water pump operating efficiency, this solution achieves refined and intelligent management of the heating system for improving water pump operating efficiency, effectively improving energy utilization efficiency and achieving the dual goals of energy saving and consumption reduction while ensuring heating quality. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic structural diagram of a heating system for improving the operating efficiency of water pumps, provided by this utility model.

[0027] Figure 2 This is a schematic diagram illustrating the pump body selection principles provided by this utility model.

[0028] Figure 3 This is a schematic diagram illustrating the operating and adjustment principles of the pump body provided by this utility model.

[0029] Figure 4 This is a schematic diagram illustrating the relationship between the pump head and rotational speed provided by this utility model.

[0030] Figure label:

[0031] 100. Primary network pipe assembly; 102. Secondary network pipe assembly; 104. Circulating pump assembly; 106. Pump body; 108. Flow detection device; 110. Pressure detection device; 112. Control device; 114. Secondary network water supply pipe; 116. User end; 118. Water distributor; 120. Secondary network return water pipe; 122. Water collector; 124. Sludge remover; 126. Makeup water tank; 128. Makeup water pump; 130. Branch water supply pipe; 132. Branch return water pipe; 134. Heat exchanger. Detailed Implementation

[0032] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0033] like Figures 1 to 4 As shown, this utility model embodiment provides a heating system for improving the operating efficiency of water pumps, comprising:

[0034] One network management group of 100;

[0035] Secondary network management group 102 is thermally coupled to primary network management group 100.

[0036] The circulating pump group 104 is located between the primary network pipe group 100 and the secondary network pipe group 102. The circulating pump group 104 includes at least three pump bodies 106 with different operating frequencies.

[0037] A flow detection element 108 is disposed at the outlet of the circulating pump group 104, and the flow detection element 108 is used to generate a circulating flow signal;

[0038] Pressure detection element 110 is installed at the inlet and outlet of the circulating pump group 104. Pressure detection element 110 is used to generate inlet and outlet pressure signals of the circulating pump group 104.

[0039] The control unit 112 is electrically connected to the flow detection unit 108 and the pressure detection unit 110. The control unit 112 is used to control the pump body 106 based on the circulating flow signal and the inlet and outlet pressure signal.

[0040] According to the heating system for improving water pump operating efficiency provided in this embodiment of the invention, a data sensing network is constructed through flow detection element 108 and pressure detection element 110 to transmit the circulating flow signal and inlet / outlet pressure signal to the control element 112 in a timely manner. The control element 112, based on the current heating demand, the corresponding pipeline characteristics, and the characteristics of the pump body 106 itself, precisely controls the number and speed of pumps 106 operating at different frequencies within the circulating pump group 104. While ensuring stable and high-quality heating, the pump body 106 operates within its high-efficiency range, avoiding energy waste caused by power redundancy or improper matching, and greatly reducing the overall energy consumption of the system. Compared to the extensive operation mode of traditional heating systems for improving water pump operating efficiency, this solution achieves refined and intelligent management of the heating system for improving water pump operating efficiency, effectively improving energy utilization efficiency and achieving the dual goals of energy saving and consumption reduction as well as ensuring heating quality.

[0041] Please continue reading Figures 1 to 4 The heating system for improving the operating efficiency of water pumps in this embodiment of the utility model constructs a complete heat transfer and intelligent control system.

[0042] The heating system for improving the operating efficiency of water pumps uses a primary network pipe group 100 and a secondary network pipe group 102 as the main heat transfer components. The primary network pipe group 100 and the secondary network pipe group 102 are connected by thermal coupling to achieve efficient heat transfer from the primary network to the secondary network.

[0043] The circulating pump unit 104 is installed between the primary network pipe group 100 and the secondary network pipe group 102. It is equipped with at least three pump bodies 106 with different operating frequencies to provide multiple power options for the network circulation.

[0044] The flow detection element 108 installed at the outlet of the circulating pump set 104 continuously monitors the circulating flow and generates a circulating flow signal in real time; the pressure detection elements 110 arranged at the inlet and outlet of the circulating pump set 104 synchronously collect inlet and outlet pressure data and generate inlet and outlet pressure signals.

[0045] The control unit 112 is electrically connected to the flow detection unit 108 and the pressure detection unit 110 as part of the system. It receives two types of signals and performs precise control of the pump body 106 in the circulating pump group 104 according to preset rules.

[0046] According to one embodiment of the present invention, at least three pump bodies 106 are connected in parallel via parallel pipelines, the parallel pipelines including a fluid inlet and a fluid outlet, the fluid inlet being fluidly connected to the secondary network pipe group 102, and the fluid outlet being fluidly connected to the flow detection element 108.

[0047] In one embodiment of this invention, at least three pumps 106 within the circulating pump assembly 104 are connected by parallel pipelines, forming diversified fluid transmission paths. The fluid inlet of the parallel pipeline is connected to the secondary network pipe assembly 102, ensuring that the fluid flowing out of the secondary network pipe assembly 102 can be evenly distributed to each pump 106; the fluid outlet is connected to the flow detection element 108 at the outlet of the circulating pump assembly 104, so that the fluid output from each pump 106 is collected and subjected to flow detection. Through the parallel structure, each pump 106 can work independently or collaboratively, providing a flexible power combination for the system.

[0048] The parallel design of pump bodies 106 gives the circulating pump set 104 a stronger flow regulation capability. When the system's heating demand changes, the control unit 112 can select to start different numbers of pump bodies 106 or adjust the operating frequency of each pump body 106 based on the signals fed back by the flow detection unit 108 and the pressure detection unit 110, so that the system flow rate accurately matches the current demand. This flexible parallel operation mode avoids the problem of efficiency reduction of a single pump body 106 when the load fluctuates, ensures the stability and regulation accuracy of the heating system flow rate used to improve the pump operating efficiency, further enhances the system's adaptability to different operating conditions, and lays the foundation for efficient and energy-saving operation.

[0049] According to one embodiment of the present invention, each pump body 106 is provided with a valve at its inlet and at its outlet, and the valve is electrically connected to the control component 112.

[0050] In one embodiment of this utility model, valves are respectively provided at the inlet and outlet of each pump body 106, and these valves are all electrically connected to the control component 112. The control component 112 can control the opening or closing of the valves through electrical signals, thereby achieving precise control of the on / off state of a single pump body 106. When it is necessary to enable or disable a certain pump body 106, the control component 112 sends a command to the corresponding valve to quickly adjust the working state of the pump body 106.

[0051] The coordinated control of the inlet and outlet valves of pump body 106 and control component 112 enables more precise operation management of the circulating pump group 104. Control component 112 can flexibly switch the operating status of each pump body 106 based on real-time circulating flow and inlet / outlet pressure signals. For example, when the heating load is low, some pump bodies 106 can be shut down, leaving only pump bodies 106 operating at a suitable frequency to avoid energy loss caused by idling of excess pump bodies 106; when the load increases, standby pump bodies 106 can be activated promptly to ensure stable system pressure and flow. This precise control method effectively improves the operating efficiency of pump bodies 106, reduces unnecessary energy consumption, and also facilitates system maintenance and repair, enhancing the reliability and intelligence level of the heating system used to improve pump operating efficiency.

[0052] According to one embodiment of the present invention, the secondary network management group 102 includes:

[0053] A secondary water supply pipe 114 is fluidly connected to a user terminal 116, and a water distributor 118 is installed between the secondary water supply pipe 114 and the user terminal 116.

[0054] The secondary network return water pipe 120 is in fluid communication with the user terminal 116, and a water collector 122 is installed between the secondary network return water pipe 120 and the user terminal 116.

[0055] In one embodiment of this utility model, the secondary network pipe group 102 consists of a secondary network water supply pipe 114 and a secondary network water return pipe 120, which respectively undertake the functions of supplying hot fluid to the user terminal 116 and recovering cold fluid. The secondary network water supply pipe 114 is connected to the user terminal 116 through a water distributor 118, which evenly distributes the hot fluid in the supply pipe to each user branch pipe; the secondary network water return pipe 120 is connected to the user terminal 116 through a water collector 122, which collects the cold fluid from each user branch pipe and flows into the water return pipe, forming a complete secondary network water circulation loop.

[0056] The arrangement of the distributor 118 and collector 122 optimizes the fluid distribution and collection between the secondary network pipe group 102 and the user terminal 116. The distributor 118 ensures that the hot fluid is delivered evenly and stably to each user, avoiding uneven heating caused by differences in pipe resistance, and ensuring the heating quality of the user terminal 116. The collector 122 efficiently collects the return water, making the system return water smoother, reducing return water resistance, and helping to maintain the stability of the secondary network water circulation. At the same time, this structural design makes the fluid flow in the secondary network pipe group 102 more orderly, which facilitates the overall flow and pressure regulation of the system according to user needs. Combined with the intelligent control of the circulating pump group 104, it further improves the energy utilization efficiency of the heating system used to improve the operating efficiency of the water pump, achieving energy-saving operation while ensuring heating quality.

[0057] According to one embodiment of the present invention, a dirt remover 124 is provided between the water collector 122 and the circulating pump group 104.

[0058] In one embodiment of this utility model, a filter 124 is installed on the pipeline between the water collector 122 and the circulating pump set 104. Its function is to filter impurities such as rust, silt, and suspended solids in the secondary network return water. When the secondary network return water flows out of the water collector 122, it first passes through the filter 124, where impurities are intercepted, and the clean fluid then enters the circulating pump set 104, preventing impurities from causing wear or blockage to the pump body 106, valves, and other components of the circulating pump set 104.

[0059] The inclusion of the dirt separator 124 effectively purifies the secondary network return water, ensuring the safe and stable operation of the circulating pump unit 104 and the entire heating system used to improve pump operating efficiency. On one hand, it reduces wear on key components such as the impeller and seals of the pump body 106 caused by impurities, extending the service life of the circulating pump unit 104 and reducing equipment maintenance costs. On the other hand, it avoids pipeline blockage, ensuring smooth fluid flow within the system, maintaining normal system pressure and flow rate, and guaranteeing the stability of the heating effect. Simultaneously, the clean fluid helps improve the heat exchange efficiency of the heat exchanger 134, further enhancing the energy utilization rate of the entire heating system used to improve pump operating efficiency, ensuring heating quality while saving energy.

[0060] According to one embodiment of the present invention, the pressure detection element 110 is disposed between the dirt separator 124 and the circulating pump group 104, and between the circulating pump group 104 and the flow detection element 108.

[0061] In one embodiment of this utility model, the pressure detection element 110 is installed in two locations: one is located on the pipeline between the filter 124 and the circulating pump group 104, used to detect the pressure at the inlet of the circulating pump group 104, i.e., the pressure of the secondary network return water after passing through the filter 124; the other is located on the pipeline between the circulating pump group 104 and the flow detection element 108, used to detect the pressure at the outlet of the circulating pump group 104. These two pressure detection elements 110 collect the pressure data at the inlet and outlet of the circulating pump group 104 in real time and transmit the signals to the control element 112, providing accurate pressure parameters for the control element 112 to control the operation of the pump body 106.

[0062] By installing pressure detection elements 110 at the inlet and outlet of the circulating pump unit 104, the control element 112 can acquire the pressure difference information between the inlet and outlet of the circulating pump unit 104 in real time and with precision. Combined with the flow detection signal at the outlet, the control element 112 can more comprehensively analyze the resistance characteristics of the pipeline network and the operating conditions of the pump body 106, thereby more accurately adjusting the number of operating pumps and the speed of the pump body 106. For example, when the pressure difference between the inlet and outlet increases, it may indicate an increase in pipeline resistance or a change in flow demand. The control element 112 can determine whether it is necessary to adjust the operating state of the pump body 106 based on the flow signal, so that the pump body 106 always operates in the high-efficiency range. This precise pressure detection and feedback mechanism further enhances the intelligent control capability of the control element 112 for the heating system used to improve the operating efficiency of the water pump, ensuring that the pump body 106 can operate efficiently under different operating conditions, effectively reducing energy consumption, while ensuring the stability of the pressure of the heating system used to improve the operating efficiency of the water pump, and improving the reliability of the heating quality.

[0063] According to one embodiment of the present invention, it also includes a water replenishment tank 126, which is in fluid communication with the secondary network return water pipe 120 through the water replenishment pipeline.

[0064] In one embodiment of this utility model, a heating system for improving the operating efficiency of the water pump is equipped with a water replenishment tank 126, which is connected to the secondary network return water pipe 120 via a water replenishment pipeline. When the water volume decreases or the system pressure drops due to leakage or other reasons during the secondary network water circulation process, the water in the water replenishment tank 126 can be automatically replenished to the secondary network return water pipe 120 through the water replenishment pipeline to maintain the water balance and normal pressure in the system. The water replenishment pipeline provides a dedicated fluid channel for the water replenishment tank 126 to replenish water to the secondary network, ensuring the smoothness and controllability of the water replenishment process.

[0065] The water replenishment tank 126 effectively solves the problem of water loss that may occur during the secondary network water circulation process, ensuring the stable operation of the heating system used to improve the efficiency of the water pumps. Through the connection between the water replenishment pipeline and the secondary network return water pipe 120, the water replenishment tank 126 can replenish water to the system in a timely and automatic manner, maintaining the system pressure within a reasonable range and avoiding heating interruptions or equipment damage due to water shortages. Stable system pressure contributes to the efficient operation of the circulating pump set 104, reducing load changes and energy losses in the pump body 106 caused by pressure fluctuations. Simultaneously, water balance ensures the normal circulation of the secondary network fluid, ensuring that the user end 116 can continuously obtain a stable heat supply, improving the system's reliability and energy efficiency while guaranteeing heating quality.

[0066] According to one embodiment of the present invention, a water supply pump 128 is provided on the water supply pipeline.

[0067] In one embodiment of this utility model, a water replenishment pump 128 is installed on the water replenishment pipeline, and the water replenishment pump 128 is electrically connected to the control unit 112. The water replenishment pump 128 serves as the power source for replenishing water from the water replenishment tank 126 to the secondary network. When the system needs water replenishment, the control unit 112 starts the water replenishment pump 128 according to the pressure detection signal of the secondary network (such as the pressure being lower than the set value). The water replenishment pump 128 pressurizes the water in the water replenishment tank 126 and delivers it to the secondary network return water pipe 120 through the water replenishment pipeline to realize the water replenishment operation. When the system pressure returns to normal, the control unit 112 controls the water replenishment pump 128 to stop running.

[0068] The inclusion of the water replenishment pump 128 makes the water replenishment process of the water replenishment tank 126 more efficient and controllable. The control unit 112 precisely controls the start and stop of the water replenishment pump 128 by monitoring the pressure signal of the secondary network, achieving automation and intelligence in the water replenishment operation. Compared to the traditional gravity-based water replenishment method, the water replenishment pump 128 can quickly and stably replenish water according to the actual needs of the system, improving replenishment efficiency and ensuring that the system pressure can be restored to the normal range in a timely manner, avoiding heating instability caused by untimely water replenishment. Simultaneously, the linkage control between the water replenishment pump 128 and the control unit 112 makes the water replenishment process more precise, avoiding over- or under-replenishment, reducing water waste, further improving the energy efficiency and operational stability of the heating system used to enhance pump operating efficiency, and ensuring continuous and reliable heating quality.

[0069] According to one embodiment of the present invention, the outlet of the water distributor 118 is provided with multiple branch water supply pipes 130, and the inlet pipe of the water collector 122 is provided with multiple branch return water pipes 132.

[0070] In one embodiment of this utility model, the outlet of the water distributor 118 is connected to multiple branch water supply pipes 130, each branch water supply pipe 130 corresponding to one or more user terminals 116, delivering the hot fluid in the secondary network water supply pipe 114 to different users respectively; the inlet pipe of the water collector 122 is provided with multiple branch return water pipes 132, each branch return water pipe 132 being connected to the return water pipe of the user terminal 116, collecting the cold fluid from each user terminal 116 and converging it into the water collector 122. The arrangement of multiple branch water supply pipes 130 and branch return water pipes 132 enables the secondary network pipe group 102 to provide heating services to multiple user terminals 116 simultaneously, forming an independent heating circuit for multiple users.

[0071] The multi-branch piping design of the manifold 118 and collector 122 enhances the adaptability and controllability of the heating system for improving pump operating efficiency to multiple user terminals 116. Each branch supply pipe 130 and branch return pipe 132 can independently correspond to different user areas or user units, facilitating personalized adjustments based on the actual heating needs of each user terminal 116. For example, when the heating demand of a certain user terminal 116 changes, the flow rate can be adjusted by regulating the valve on that branch pipe without affecting the normal heating of other user terminals 116, thus improving the flexibility and user experience of the heating system for improving pump operating efficiency. At the same time, the multi-branch piping makes the fluid distribution in the secondary network more uniform, reducing the problem of uneven resistance caused by concentrated piping. Combined with the intelligent control of the circulating pump group 104, it can more accurately match the flow rate demand of each user terminal 116, avoiding unnecessary energy loss. While ensuring the heating quality of each user terminal 116, it achieves high-efficiency and energy-saving operation of the entire heating system for improving pump operating efficiency.

[0072] According to one embodiment of the present invention, the secondary network pipe group 102 and the primary network pipe group 100 are thermally coupled together via a heat exchanger 134.

[0073] In one embodiment of this invention, the secondary network pipe assembly 102 and the primary network pipe assembly 100 are thermally coupled together via a heat exchanger 134. The high-temperature fluid in the primary network pipe assembly 100 flows through one side of the heat exchanger 134, while the low-temperature fluid in the secondary network pipe assembly 102 flows through the other side of the heat exchanger 134. Through the heat transfer wall of the heat exchanger 134, heat is transferred from the primary network fluid to the secondary network fluid, completing the heat exchange process. This thermal coupling method isolates the fluids in the primary and secondary networks, avoiding potential contamination problems caused by mixing, while simultaneously achieving efficient heat transfer.

[0074] Heat exchanger 134, serving as the heat transfer medium between the primary and secondary networks, possesses highly efficient and stable heat transfer performance. It ensures that heat from the primary network is transferred to the secondary network to the maximum extent possible, improving heat utilization and reducing heat loss. Simultaneously, the independent fluid loop design of the primary and secondary networks guarantees the safety and reliability of the system, avoiding equipment damage or water contamination caused by fluid mixing. Combined with the intelligent control of the circulating pump unit 104, heat exchanger 134 can dynamically adjust its heat exchange capacity according to the heating demand of the secondary network, keeping the temperature of the secondary network fluid within a reasonable range and ensuring the stability of heating quality. Furthermore, the efficient heat exchange process reduces energy consumption in the primary network, further enhancing the energy-saving effect of the entire heating system used to improve pump operating efficiency, achieving the goal of reducing energy consumption while ensuring heating quality.

[0075] In this embodiment of the invention, the control element 112 can control the pump body 106 and / or the valve in the following manner:

[0076] First, the control unit 112 receives the circulating flow signal generated by the flow detection unit 108 in real time. At the same time, it synchronously collects the inlet and outlet pressure signals generated by the pressure detection unit 110. During this process, the data can be updated at a fixed cycle of 1 hour, and historical operating parameters can be stored.

[0077] Secondly, based on the current traffic Q and pump body with a head of 106 Through formula Calculate the pipeline impedance and generate the characteristic curve of the transmission pipeline;

[0078] Next, after generating the characteristic curve of the pipeline network of the conveying system, it is compared with the impedance corresponding to the highest efficiency under the combination of several pump bodies 106 built into the control to determine the combination of pump bodies 106 to be operated. Through the electric adjustment of the valves, the inlet valve and outlet valve of the selected pump body 106 are opened, and the valves of the unselected pump body 106 are closed.

[0079] Next, the pump body 106 is operated using frequency conversion speed regulation to adjust its actual head to match the required head. H Consistent;

[0080] Finally, at the end of each cycle, the traffic is collected again. Q and pressure P 1 , P 2 The system checks the current impedance of the pipeline network of the delivery system against the previous acquisition cycle. If the deviation exceeds the threshold (±5%), the system recalculates and adjusts the start / stop of the pump or the speed of the pump.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heating system for improving the operating efficiency of water pumps, characterized in that, include: One network management group (100); A secondary network management group (102) is thermally coupled to the primary network management group (100); A circulating pump group (104) is disposed between the primary network pipe group (100) and the secondary network pipe group (102), and the circulating pump group (104) includes at least three pump bodies (106) with different operating frequencies. A flow detection element (108) is disposed at the outlet of the circulating pump group (104), and the flow detection element (108) is used to generate a circulating flow signal; A pressure detection element (110) is disposed at the inlet and outlet of the circulating pump group (104), and the pressure detection element (110) is used to generate inlet and outlet pressure signals of the circulating pump group (104). The control unit (112) is electrically connected to the flow detection unit (108) and the pressure detection unit (110), and the control unit (112) is used to control the pump body (106) based on the circulating flow signal and the inlet and outlet pressure signal.

2. The heating system for improving the operating efficiency of water pumps according to claim 1, characterized in that, At least three of the pump bodies (106) are connected in parallel via parallel pipelines, the parallel pipelines including a fluid inlet and a fluid outlet, the fluid inlet being in fluid communication with the secondary network pipe group (102), and the fluid outlet being in fluid communication with the flow detection element (108).

3. The heating system for improving the operating efficiency of water pumps according to claim 2, characterized in that, Each of the pump bodies (106) is provided with a valve at its inlet and at its outlet, and the valve is electrically connected to the control unit (112).

4. The heating system for improving the operating efficiency of water pumps according to claim 1, characterized in that, The secondary network management group (102) includes: A secondary water supply pipe (114) is fluidly connected to the user terminal (116), and a water distributor (118) is provided between the secondary water supply pipe (114) and the user terminal (116). A secondary network return water pipe (120) is fluidly connected to the user terminal (116), and a water collector (122) is provided between the secondary network return water pipe (120) and the user terminal (116).

5. The heating system for improving the operating efficiency of water pumps according to claim 4, characterized in that, A dirt remover (124) is provided between the water collector (122) and the circulating pump group (104).

6. The heating system for improving the operating efficiency of water pumps according to claim 5, characterized in that, The pressure detection element (110) is disposed between the dirt separator (124) and the circulating pump group (104) and between the circulating pump group (104) and the flow detection element (108).

7. The heating system for improving the operating efficiency of water pumps according to claim 4, characterized in that, It also includes a water replenishment tank (126), which is in fluid communication with the secondary network return water pipe (120) through the water replenishment pipeline.

8. The heating system for improving the operating efficiency of water pumps according to claim 7, characterized in that, A water supply pump (128) is installed on the water supply pipeline.

9. The heating system for improving the operating efficiency of a water pump according to any one of claims 4 to 8, characterized in that, The outlet of the water distributor (118) is provided with multiple branch water supply pipes (130), and the inlet pipe of the water collector (122) is provided with multiple branch return water pipes (132).

10. A heating system for improving the operating efficiency of a water pump according to any one of claims 1 to 8, characterized in that, The secondary network group (102) and the primary network group (100) are thermally coupled together via a heat exchanger (134).

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