Hydraulic module for ground water source heat pump system and ground water source heat pump system

Abstract

The utility model relates to the technical field of hydraulic modules, in particular to a hydraulic module for a water ground source heat pump system and the water ground source heat pump system, and aims to solve the problems of more pipelines, large occupied space or complex connection in the hydraulic module in the prior art. In order to achieve the purpose, the hydraulic module for the ground water source heat pump system comprises a source side pipeline and a use side pipeline, a first water pump is arranged on the source side pipeline, a second water pump is arranged on the use side pipeline, the hydraulic module further comprises a five-way valve, a water supplementing valve, an expansion tank and a safety valve, and the five passages are correspondingly communicated with the air vent of the first water pump, the air vent of the second water pump, the water outlet end of the water replenishing valve, the water inlet end of the safety valve and the expansion tank respectively. And the use side pipeline and the source side pipeline share one set of water replenishing valve, expansion tank and safety valve, so that the use of connecting water pipes is reduced, and meanwhile, the cost can be saved.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic modules, and specifically provides a hydraulic module for a water-ground source heat pump system and a water-ground source heat pump system. Background Art

[0002] When using a ground source heat pump as a heat source, in order to reduce the space occupied by the waterway, the waterway is integrated into a module to form a hydraulic module. The hydraulic module includes a box body and a user-side waterway and a source-side waterway integrated in the box body. The user-side waterway and the source-side waterway are two separate waterways integrated in the same hydraulic module. However, both the user-side waterway and the source-side waterway include structures such as a water pump, an expansion tank, a safety valve, a drain valve, and inlet and outlet water pipes. The above structures are integrated in the hydraulic module at the same time and occupy most of the space in the box body. Since each structure needs to be connected by a water pipe, the difficulty of connection is increased, and the space occupied in the box body is further increased. At the same time, the difficulty of maintenance is also increased.

[0003] In view of this, it is necessary to provide an improved technical solution to solve the above problems. Utility Model Content

[0004] The present application aims to solve the above technical problems, that is, to solve the problems in the prior art that the hydraulic module contains too many pipes, occupies a large space or has complex connections.

[0005] The present application provides a hydraulic module for a water-ground source heat pump system, including a source-side pipeline and a use-side pipeline, wherein a first water pump is arranged on the source-side pipeline, and a second water pump is arranged on the use-side pipeline. The hydraulic module also includes a five-way valve, a water replenishment valve, an expansion tank and a safety valve, wherein the five-way valve includes five passages, and the five passages are respectively connected to the vent of the first water pump, the vent of the second water pump, the water outlet of the water replenishment valve, the water inlet of the safety valve and the expansion tank.

[0006] In the preferred technical solution of the hydraulic module for the water-to-ground source heat pump system, a first vent pipe is provided on the vent of the first water pump, and the first vent pipe is connected to the corresponding passage of the five-way valve; a second vent pipe is provided on the vent of the second water pump, and the second vent pipe is connected to the corresponding passage of the five-way valve; a first exhaust valve is provided on the first vent pipe; and / or a second exhaust valve is provided on the second vent pipe.

[0007] In the preferred technical solution of the hydraulic module for the water-to-ground source heat pump system, it also includes a box body, in which the use-side pipeline, the source-side pipeline, the five-way valve, the water replenishment valve, the expansion tank and the safety valve are arranged.

[0008] In the preferred technical solution of the hydraulic module for the water-to-ground source heat pump system, the first water pump includes a first water inlet, the second water pump includes a second water inlet, the water replenishment valve includes a third water inlet, and the first water inlet and / or the second water inlet and / or the third water inlet are arranged on the box body and are connected to the outside of the box body.

[0009] In the above-mentioned preferred technical solution of the hydraulic module for the water-to-ground source heat pump system, the first water pump includes a first water outlet, the second water pump includes a second water outlet, the box body is provided with a source side water outlet and a use side water outlet, the source side pipeline also includes a first water outlet pipe, and the two ends of the first water outlet pipe are respectively connected to the first water outlet and the source side water outlet, the use side pipeline also includes a second water outlet pipe, and the two ends of the second water outlet pipe are respectively connected to the second water outlet and the use side water outlet.

[0010] In the preferred technical solution of the hydraulic module for the water-to-ground source heat pump system, the first water inlet, the second water inlet, the source side water outlet, the use side water outlet and the third water inlet are arranged on the same plate surface of the box body.

[0011] In the preferred technical solution of the hydraulic module for the water-to-ground source heat pump system, the first water inlet is connected to the source side water source through a first water inlet pipe, and the second water inlet is connected to the use side water source through a second water inlet pipe, and the diameters of the first water inlet pipe and the second water inlet pipe are both larger than the diameters of the first ventilation pipe and the second ventilation pipe.

[0012] In the preferred technical solution of the hydraulic module for the water-to-ground source heat pump system, the expansion tank is vertically arranged in the box body, and the connection port between the expansion tank and the five-way valve is located at the bottom of the expansion tank.

[0013] In the preferred technical solution of the hydraulic module for the water-to-ground source heat pump system, a sealing ring is provided at the connection position between the expansion tank and the five-way valve; and / or a water receiving pan is provided at the bottom of the box body, and the water receiving pan is provided at the bottom of the safety valve for receiving water discharged from the safety valve.

[0014] The present application also provides a water-ground source heat pump system, including a water-ground source heat pump unit, the water-ground source heat pump system includes a hydraulic module for a water-ground source heat pump system as described in any one of the above technical solutions, and the source side pipeline and the use side pipeline of the hydraulic module are connected to the corresponding pipelines of the water-ground source heat pump unit.

[0015] When the above technical solution is adopted, the use-side pipeline and the source-side pipeline of the present application share a set of water supply valves, expansion tanks, and safety valves, which reduces the use of connecting water pipes and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of the internal structure connection of the hydraulic module of the present application.

[0018] List of reference numerals:

[0019] 1. Hydraulic module; 10. Box; 101. Source side water outlet; 102. User side water outlet; 11. Source side pipeline; 111. First water pump; 1111. First water inlet; 1112. First vent; 1113. First water outlet; 112. First ventilation pipe; 113. First exhaust valve; 114. First water outlet; 12. User side pipeline; 121. Second water pump; 1211. Second water inlet; 1212. Second vent; 1213. Second water outlet; 122. Second ventilation pipe; 123. Second exhaust valve; 124. Second water outlet; 13. Five-way valve; 14. Safety valve; 15. Expansion valve; 16. Water supply valve; 161. Third water inlet. DETAILED DESCRIPTION

[0020] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments are only to present the concept of the present application and do not represent all implementations under the concept of the present application. Instead, they are only examples of devices and methods consistent with some aspects of the concept of the present application.

[0021] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in this application specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the presence of at least one.

[0022] Unless otherwise specified, words such as "lower" and / or "upper", "bottom" and the like are for convenience of description only and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalent elements or objects, and other elements or objects are not excluded in this application. "Connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0023] like Figure 1 As shown, in order to solve the problems in the prior art that the hydraulic module contains too many pipes, occupies a large space or has complex connections, the present application provides a hydraulic module 1 for a water-source heat pump system. Since the water-source heat pump can use surface water, groundwater or soil as an energy source, the heat pump of the water-source heat pump system can be a water-source heat pump or a ground-source heat pump. For the convenience of introduction, the ground-source heat pump is taken as an example for introduction. The hydraulic module 1 includes a source-side pipe 11 and a use-side pipe 12. The source-side pipe 11 is provided with a A first water pump 111 is provided, and a second water pump 121 is provided on the usage side pipeline 12. The hydraulic module 1 also includes a five-way valve 13, a water supply valve 16, an expansion tank 15 and a safety valve 14. The five-way valve 13 includes five passages, and the five passages are respectively connected to the vent of the first water pump 111 (for the convenience of description, represented by the first vent 1112), the vent of the second water pump 121 (for the convenience of description, represented by the second vent 1212), the water outlet of the water supply valve 16, the water inlet of the safety valve 14 and the expansion tank 15. Since in the prior art, a water replenishment valve 16, an expansion tank 15 and a safety valve 14 are usually arranged on the source side pipeline 11 and the use side pipeline 12 respectively, thereby occupying more space in the box body 10, the use side pipeline 12 and the source side pipeline 11 of the present application share a set of water replenishment valves 16, expansion tanks 15 and safety valves 14, thereby saving costs. The water replenishment valve 16, the expansion tank 15 and the safety valve 14 are integrated with the first water pump 111 and the second water pump 121 through the five-way valve 13, and the use of connecting water pipes between the structures can be reduced. While further reducing costs, it also reduces the occupied space in the box body 10 and increases the operable space in the box body 10.

[0024] In one embodiment, in order to ensure that the first water pump 111, the second water pump 121 and the five-way valve 13 are more conveniently connected, a first vent pipe 112 is provided on the first vent port 1112, and a second vent pipe 122 is provided on the second vent port 1212. The first vent port 1112 and the second vent port 1212 are respectively connected to the corresponding passages of the five-way valve 13 through the first vent pipe 112 and the second vent pipe 122. In addition, in order to avoid the presence of air or a large amount of water vapor in the user-side pipeline 12 or the source-side pipeline 11, a first exhaust valve 113 may be provided on the first vent pipe 112 or a second exhaust valve 123 may be provided on the second vent pipe 122. Of course, the first exhaust valve 113 may be provided on the first vent pipe 112 and the second exhaust valve 123 may be provided on the second vent pipe 122 at the same time as required, so that when a large amount of gas appears in the user-side pipeline 12 and the source-side pipeline 11, it can be discharged in time.

[0025] In one embodiment, since the hydraulic module 1 is an integrated structure, the hydraulic module 1 further includes a housing 10, and structures such as the user-side pipeline 12, the source-side pipeline 11, the five-way valve 13, the water supply valve 16, the expansion tank 15 and the safety valve 14 are all integrated in the housing 10. The first water pump 111 includes a first water inlet 1111, the second water pump 121 includes a second water inlet 1211, and the water supply valve 16 includes a third water inlet 161. In order to further reduce the number of water pipes used in the pipeline, the first water pump 111, the second water pump 121 and the water supply valve 16 can be arranged close to the side panel of the housing 10, so that the first water inlet 1111, the second water inlet 1211 and the third water inlet 161 are directly arranged on the housing 10, or any one or more of the first water inlet 1111, the second water inlet 1211 and the third water inlet 161 are arranged on the housing 10 according to the needs of those skilled in the art. For the convenience of introduction, the first water inlet 1111 is set on the box body 10 as an example. In the prior art, a water inlet is usually set on the box body 10, and a connecting water pipe is set between the water inlet on the box body 10 and the first water inlet 1111 on the first water pump 111, and the connecting water pipe is also set in the box body. When the source side pipeline 11 is connected with the source side water source, the water pipe connected to the source side water source is connected to the water inlet of the box body 10, and the source side water source can enter the first water pump 111 only through the water inlet, the connecting water pipe and the first water inlet 1111 on the box body 10. In the present application, the first water inlet 1111 is directly set on the box body 10, and there is no need to set a connecting water pipe in the box body 10. The water in the source side water source directly enters the first water pump 111 through the first water inlet 1111, thereby reducing the setting of water pipes and reducing the occupied space in the box body 10, which is more convenient for subsequent maintenance. It should be noted that the principle of setting the second water inlet 1211 and the third water inlet 161 on the box body 10 is the same as the principle of setting the first water inlet 1111, and all of the above are within the protection scope of the present application.

[0026] In one embodiment, the first water pump 111 includes a first water outlet 1113, the second water pump 121 includes a second water outlet 1213, a source side water outlet 101 and a use side water outlet 102 are provided on the box body 10, the source side pipeline 11 also includes a first water outlet pipe 114, and the two ends of the first water outlet pipe 114 are respectively connected to the first water outlet 1113 and the source side water outlet 101, the use side pipeline 12 also includes a second water outlet pipe 124, and the two ends of the second water outlet pipe 124 are respectively connected to the second water outlet 1213 and the use side water outlet 102, the water in the source side pipeline 11 needs to pass through the first water outlet pipe 114 to be discharged to the outside after passing through the first water pump 111, and the water in the use side pipeline 12 needs to pass through the second water outlet pipe 124 to be discharged to the outside. In order to facilitate the connection of the user-side pipeline 12 and the source-side pipeline 11 with the external inlet and outlet water pipes, the first water inlet 1111, the second water inlet 1211, the source-side water outlet 101, the user-side water outlet 102 and the third water inlet 161 can be set on the same panel of the box body 10, that is, on the same side of the box body 10. At this time, the user only needs to face one side of the box body 10 to complete the connection with all external water pipes, saving installation time.

[0027] The first water inlet 1111 is connected to the source side water source through a first water inlet pipe (not shown in the figure), and the second water inlet 1211 is connected to the use side water source through a second water inlet pipe (not shown in the figure). Both the first water inlet pipe and the second water inlet pipe are pipes arranged outside the box body 10. Since the use side pipeline 12 is in a connected state with the source side pipeline 11, in order to ensure that the first water pump 111 preferentially extracts water from the source side water source rather than extracting water in the use side pipeline 12 through the first ventilation pipe 112 when the source side pipeline 11 is inlet, or in order to ensure that the second water pump 121 preferentially extracts water from the use side water source rather than extracting water in the source side pipeline 11 through the second ventilation pipe 122 when the use side pipeline 12 is inlet, the diameters of the first water inlet pipe and the second water inlet pipe are larger than the diameters of the first ventilation pipe 112 and the second ventilation pipe 122, so as to ensure that the source side pipeline 11 and the use side pipeline 12 can operate normally.

[0028] It should be noted that, since the side pipeline 12 is connected to the source side pipeline 11, when the pressure of one side pipeline is too low and needs water replenishment, water can be replenished through the water replenishment valve 16 while also replenishing through the pipeline on the other side, thereby balancing the pressure on both sides more quickly. Or, when the pressure of one side pipeline is too high and needs to be drained into the expansion tank 15, water can be drained into the pipeline on the other side at the same time, thereby also balancing the pressure on both sides more quickly.

[0029] In one embodiment, the expansion tank 15 is vertically arranged in the housing 10, and the connection port of the expansion tank 15 and the five-way valve 13 is located at the bottom of the expansion tank 15. When the pressure in the user-side pipeline 12 or the source-side pipeline 11 increases to meet the condition of draining water into the expansion tank 15, the user-side pipeline 12 or the source-side pipeline 11 presses water into the expansion tank 15. When the water pressure in the user-side pipeline 12 or the source-side pipeline 11 is small and meets the condition of discharging the water in the expansion tank 15 into the user-side pipeline 12 or the source-side pipeline 11, the water in the expansion tank 15 is directly discharged from the connection port at the bottom, thereby accelerating the drainage speed and preventing the gas in the expansion tank 15 from being discharged into the user-side pipeline 12 or the source-side pipeline 11. In order to ensure the sealing effect of the expansion tank 15, and thus ensure the water pressure regulating effect of the expansion tank 15 on the user-side pipeline 12 and the source-side pipeline 11, a sealing ring is provided at the connection position of the expansion tank 15 and the five-way valve 13. In addition, in order to further reduce the number of water pipes, a water receiving tray (not shown in the figure) is provided at the bottom of the box body 10, and the water receiving tray is provided at the bottom of the safety valve 14. At this time, there is no need to provide a drain pipe at the drain port of the safety valve 14. When the safety valve 14 meets the drainage standard, the water discharged from the safety valve 14 is directly discharged into the water receiving tray.

[0030] In summary, the side pipeline 12 and the source side pipeline 11 share a set of water supply valve 16, expansion tank 15 and safety valve 14, thereby saving costs. The water supply valve 16, expansion tank 15 and safety valve 14 are integrated with the first water pump 111 and the second water pump 121 through the five-way valve 13, which can also reduce the use of water pipes, further reduce costs and reduce the space occupied by the above structure in the box body 10. The side pipeline 12, the source side pipeline 11, the five-way valve 13, the water supply valve 16, the expansion tank 15 and the safety valve 14 are all integrated in the box body 10. In order to further reduce Depending on the number of water pipes used in the pipeline, the first water pump 111, the second water pump 121 and the water replenishing valve 16 can be arranged close to the side panel of the box body 10, so that the first water inlet 1111, the second water inlet 1211 and the third water inlet 161 are directly arranged on the box body 10, and there is no need to use a switching water pipe. The water that needs to enter the source side pipeline 11, the user side pipeline 12 or the water replenishing valve 16 directly enters the corresponding pipeline through the corresponding water inlet on the box body 10. The above arrangement can also reduce the space occupied by the integrated structure in the box body 10, while also saving costs and reducing the difficulty of maintenance.

[0031] In addition, the present application also provides a water-ground source heat pump system, including a water-ground source heat pump unit, which has a hydraulic module 1 for a water-ground source heat pump system as described in any of the above-mentioned embodiments, and the source side pipeline 11 and the use side pipeline 12 of the hydraulic module 1 are connected to the corresponding pipelines of the water-ground source heat pump unit, wherein the water-ground source heat pump system can also be expressed as a water (ground) source heat pump system, and the water-ground source heat pump unit can also be expressed as a water (ground) source heat pump unit. The above is not restrictive and can be set according to the needs of technicians in this field.

[0032] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A hydraulic module for a water-source heat pump system, characterized in that: It includes a source side pipeline and a use side pipeline, wherein a first water pump is arranged on the source side pipeline, and a second water pump is arranged on the use side pipeline. The hydraulic module also includes a five-way valve, a water supply valve, an expansion tank and a safety valve. The five-way valve includes five passages, and the five passages are respectively connected with the vent of the first water pump, the vent of the second water pump, the water outlet of the water supply valve, the water inlet of the safety valve and the expansion tank.

2. The hydraulic module for a water-source heat pump system according to claim 1, characterized in that: A first vent pipe is provided on the vent port of the first water pump, and the first vent pipe is connected to the corresponding passage of the five-way valve; a second vent pipe is provided on the vent port of the second water pump, and the second vent pipe is connected to the corresponding passage of the five-way valve. The first ventilation pipe is provided with a first exhaust valve; and / or the second ventilation pipe is provided with a second exhaust valve.

3. The hydraulic module for a water-source heat pump system according to claim 2, characterized in that: It also includes a box body, in which the use-side pipeline, the source-side pipeline, the five-way valve, the water replenishment valve, the expansion tank and the safety valve are arranged.

4. The hydraulic module for a water-source heat pump system according to claim 3, characterized in that: The first water pump includes a first water inlet, the second water pump includes a second water inlet, the water replenishment valve includes a third water inlet, and the first water inlet and / or the second water inlet and / or the third water inlet are arranged on the box body and connected to the outside of the box body.

5. The hydraulic module for a water-source heat pump system according to claim 4, characterized in that: The first water pump includes a first water outlet, the second water pump includes a second water outlet, a source side water outlet and a use side water outlet are arranged on the box body, the source side pipeline also includes a first water outlet pipe, and the two ends of the first water outlet pipe are respectively connected to the first water outlet and the source side water outlet, the use side pipeline also includes a second water outlet pipe, and the two ends of the second water outlet pipe are respectively connected to the second water outlet and the use side water outlet.

6. The hydraulic module for a water-source heat pump system according to claim 5, characterized in that: The first water inlet, the second water inlet, the source-side water outlet, the use-side water outlet and the third water inlet are arranged on the same plate surface of the box body.

7. The hydraulic module for a water-source heat pump system according to claim 4, characterized in that: The first water inlet is connected to the source side water source through a first water inlet pipe, and the second water inlet is connected to the use side water source through a second water inlet pipe. The diameters of the first water inlet pipe and the second water inlet pipe are both larger than the diameters of the first ventilation pipe and the second ventilation pipe.

8. The hydraulic module for a water-source heat pump system according to claim 3, characterized in that: The expansion tank is vertically arranged in the box body, and the connection port between the expansion tank and the five-way valve is located at the bottom of the expansion tank.

9. The hydraulic module for a water-source heat pump system according to claim 3, characterized in that: A sealing ring is provided at the connection position between the expansion tank and the five-way valve; and / or, A water receiving tray is arranged at the bottom of the box body, and the water receiving tray is arranged at the bottom of the safety valve for receiving water discharged by the safety valve.

10. A water-source heat pump system, comprising a water-source heat pump unit, characterized in that: The water-ground source heat pump system comprises a hydraulic module for a water-ground source heat pump system as described in any one of claims 1 to 9, and a source-side pipeline and a use-side pipeline of the hydraulic module are connected to corresponding pipelines of the water-ground source heat pump unit.

Images