Integrated hydraulic module

Abstract

The utility model discloses an integrated hydraulic module, which belongs to the technical field of heat pumps, is arranged between a heat pump host and a load, and comprises a shell and a buffer water tank, and the buffer water tank is arranged in the shell; the buffer water tank comprises a water tank hot water inlet, a water tank return water outlet, a water tank hot water outlet and a water tank return water inlet, the water tank hot water inlet is communicated with a water outlet of the heat pump main machine through a water pipe, the water tank return water outlet is communicated with a water return port of the heat pump main machine, and the water tank hot water outlet is communicated with a water inlet of the load through a water pipe. The water tank backwater inlet is communicated with a backwater port of the load; the water tank hot water inlet and the water tank hot water outlet are arranged on the upper side of the buffer water tank, and the water tank return water outlet and the water tank return water inlet are arranged on the lower side of the buffer water tank. The integrated hydraulic module solves the problems that when an existing hydraulic module is connected, a refrigerant pipe needs to be used, and a client needs to configure accessories such as a buffer water tank.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to an integrated hydraulic module. Background Art

[0002] The air source heat pump system is a high-efficiency heating equipment that uses the reverse Carnot cycle principle to absorb heat from the air. It has the advantages of energy saving and environmental protection.

[0003] Air source heat pumps usually need to be installed with a buffer water tank, expansion tank, water pump, water pressure gauge and various valves. The installation requires a certain degree of professionalism and the installation process is relatively cumbersome. Therefore, the labor cost of heat pump installation is usually expensive, which is also a considerable burden for users.

[0004] At present, the common split air source heat pump in China can concentrate some water system components indoors as hydraulic modules, but because the hydraulic module is connected to the heat pump host located outdoors through a refrigerant pipe, the installation airtightness and safety requirements are very high. The probability of leakage when using refrigerant pipes is usually relatively high, and the common hydraulic modules still require customers to configure buffer water tanks and some valves. This will make the installation inconvenient. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides an integrated hydraulic module to solve the above problems.

[0006] The technical solution adopted by the utility model to solve the technical problem is: an integrated hydraulic module is arranged between the heat pump host and the load, comprising a shell and a buffer water tank, wherein the buffer water tank is arranged in the shell;

[0007] The buffer water tank comprises a water tank hot water inlet, a water tank return water outlet, a water tank hot water outlet and a water tank return water inlet, the water tank hot water inlet is connected with the water outlet of the heat pump host through a water pipe, the water tank return water outlet is connected with the return water inlet of the heat pump host, the water tank hot water outlet is connected with the water inlet of the load through a water pipe, and the water tank return water inlet is connected with the return water inlet of the load;

[0008] The water tank hot water inlet and the water tank hot water outlet are arranged on the upper side of the buffer water tank, and the water tank return water outlet and the water tank return water inlet are arranged on the lower side of the buffer water tank.

[0009] It is worth noting that it also includes a main unit circulating water pump and a terminal circulating water pump, which are arranged in the shell; the water outlet of the heat pump main unit is connected to the water inlet of the main unit circulating water pump, and the water outlet of the main unit circulating water pump is connected to the hot water inlet of the water tank;

[0010] The hot water outlet of the water tank is communicated with the water inlet of the terminal circulating water pump, and the water outlet of the terminal circulating water pump is communicated with the water inlet of the load.

[0011] Optionally, a three-way valve is further included, which is arranged in the shell, the water tank return water inlet is connected to the first end of the three-way valve, the return water port of the load includes a heating return water port and a domestic hot water return water port, the second end of the three-way valve is connected to the heating return water port, and the third end of the three-way valve is connected to the domestic hot water return water port.

[0012] Preferably, it also includes an expansion tank, which is arranged in the shell, and the water inlet of the expansion tank is connected to the hot water outlet of the water tank and the input port of the terminal circulating water pump.

[0013] Specifically, it also includes an electric heating mechanism, which includes a heating wire. The heating wire is arranged in the buffer water tank and located in the middle of the buffer water tank.

[0014] It is worth noting that a filter is also included. The filter is arranged between the water tank return water outlet and the return water inlet of the heat pump host, and the filter is arranged between the water tank return water inlet and the return water inlet of the load.

[0015] Preferably, it also includes a safety valve, and the water outlet of the terminal circulating water pump is connected to the outside through the safety valve.

[0016] The beneficial effect of the utility model is that in the integrated hydraulic module, the user only needs to connect the hydraulic module to the pipelines of the heat pump main unit and the load respectively during installation. In addition, since there is no need for heat exchange in the hydraulic module, there is no need to connect it to the heat pump main unit through a refrigerant pipe. They only need to be connected through conventional water pipes, and there is no need to configure any other components. The installation is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an integrated hydraulic module in one embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a heat pump system with an integrated hydraulic module in one embodiment of the utility model;

[0019] In the figure: 1 shell; 2 buffer water tank; 3 main unit circulating water pump; 4 terminal circulating water pump; 5 three-way valve; 6 expansion tank; 7 electric heating mechanism; 8 filter; 9 heat pump main unit; 10 load; 11 radiator; 12 fan disk; 13 domestic hot water use equipment; 14 safety valve; 15 water pressure gauge; 16 water flow switch; 17 automatic exhaust valve; 18 heating return water inlet; 19 domestic hot water return water inlet; 21 water tank hot water inlet; 22 water tank return water outlet; 23 water tank hot water outlet; 24 water tank return water inlet; 25 first arrow; 26 second arrow. DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] like Figure 1 and 2 As shown, an integrated hydraulic module is arranged between a heat pump host 9 and a load 10, comprising a housing 1 and a buffer water tank 2, wherein the buffer water tank 2 is arranged in the housing 1; the buffer water tank 2 is used to ensure that the water system has sufficient water to prevent the heat pump host 9 from being frequently started and stopped; the load 10 comprises a radiator 11, a fan disk 12 and a domestic hot water use device 13;

[0022] The buffer water tank 2 includes a water tank hot water inlet 21, a water tank return water outlet 22, a water tank hot water outlet 23 and a water tank return water inlet 24. The water tank hot water inlet 21 is connected to the water outlet of the heat pump host 9 through a water pipe, the water tank return water outlet 22 is connected to the return water port of the heat pump host 9, the water tank hot water outlet 23 is connected to the water inlet of the load 10 through a water pipe, and the water tank return water inlet 24 is connected to the return water port of the load 10;

[0023] The water tank hot water inlet 21 and the water tank hot water outlet 23 are arranged on the upper side of the buffer water tank 2 , and the water tank return water outlet 22 and the water tank return water inlet 24 are arranged on the lower side of the buffer water tank 2 .

[0024] In the integrated hydraulic module, the user only needs to connect the hydraulic module to the pipelines of the heat pump host 9 and the load 10 respectively during installation. In addition, since there is no need for heat exchange in the hydraulic module, there is no need to connect it to the heat pump host 9 through a refrigerant pipe. They only need to be connected through conventional water pipes. There is no need to configure any other components, and the installation is very convenient.

[0025] like Figure 2As shown, the direction of the first arrow 25 is the flow direction of hot water, and the direction of the second arrow 26 is the flow direction of return water. When in use, the hot water generated by the heat pump host 9 enters the upper side of the buffer water tank 2 from the water tank hot water inlet 21 through a conventional water pipe, and then is output to the radiator 11, the fan disk 12 and the domestic hot water use equipment 13 through the water tank hot water outlet 23 also located on the upper side of the buffer water tank 2, and then flows back through the return water ports of the radiator 11, the fan disk 12 and the domestic hot water use equipment 13 and enters the lower side of the buffer water tank 2 from the water tank return water inlet 24, and then is sent back to the heat pump host 9 through the water tank return water outlet 22 also located on the lower side of the buffer water tank 2 for heating, forming a cycle.

[0026] It is worth noting that it also includes a main circulating water pump 3 and a terminal circulating water pump 4, and the main circulating water pump 3 and the terminal circulating water pump 4 are arranged in the shell 1; the water outlet of the heat pump main unit 9 is connected with the water inlet of the main circulating water pump 3, and the water outlet of the main circulating water pump 3 is connected with the hot water inlet 21 of the water tank; the hot water outlet 23 of the water tank is connected with the water inlet of the terminal circulating water pump 4, and the water outlet of the terminal circulating water pump 4 is connected with the water inlet of the load 10.

[0027] In the buffer water tank 2, hot water is floating and cold water is sinking. The water inlet of the terminal circulating water pump 4 is closer to the hot water outlet 23 of the buffer water tank 2, so it is definitely pumping hot water. Moreover, since the heat pump host 9 is always circulating and heating, the water temperature of the entire buffer water tank 2 is in the process of rising. The return pipeline composed of the water tank return water inlet 24 and the water tank return water outlet 22 is arranged on the lower side of the buffer water tank 2, and the principle of cold water sinking can be used to prevent the hot water and cold water in the same buffer water tank 2 from interfering with each other. A water flow switch 16 is provided between the outlet of the host circulating water pump 3 and the hot water inlet 21 of the buffer water tank 2. The water flow switch 16 is used to detect whether the hot water flow is sufficient to prevent the heat pump host 9 from drying out. An automatic exhaust valve 17 is provided on the top of the buffer water tank 2, which can discharge the air in the buffer water tank 2 in time to prevent poor water flow.

[0028] Optionally, a three-way valve 5 is further included, which is arranged in the shell 1, the water tank return water inlet 24 is connected to the first end of the three-way valve 5, the return water port of the load 10 includes a heating return water port 18 and a domestic hot water return water port 19, the second end of the three-way valve 5 is connected to the heating return water port 18, and the third end of the three-way valve 5 is connected to the domestic hot water return water port 19.

[0029] The three-way valve 5 is used to connect the water tank return water inlet 24 and the heating return water inlet 18, or the three-way valve 5 is used to connect the water tank return water inlet 24 and the domestic hot water return water inlet 19, and the connection of different pipelines can be switched through the three-way valve 5. The heating return water inlet 18 is formed by connecting the return water inlet of the radiator 11 and the return water inlet of the fan disk 12 in parallel, and the domestic hot water return water inlet 19 is the return water inlet of the domestic hot water using device 13.

[0030] Specifically, it also includes an expansion tank 6, which is disposed in the housing 1, and the water inlet of the expansion tank 6 is connected to the hot water outlet 23 of the water tank and the input port of the terminal circulating water pump 4. The expansion tank 6 is used to balance the hot water outlet water pressure of the system.

[0031] Preferably, an electric heating mechanism 7 is further included, and the electric heating mechanism 7 includes a heating wire, and the heating wire is arranged in the buffer water tank 2 and located in the middle of the buffer water tank 2. When the heat pump host 9 is insufficiently heated at low temperature, the electric heating mechanism 7 is supplemented as an auxiliary heat source so that the hot water output from the hot water outlet 23 of the buffer water tank 2 can reach the set value.

[0032] It is worth noting that a filter 8 is also included, and the filter 8 is provided between the water tank return water outlet 22 and the return water inlet of the heat pump host 9, and the filter 8 is provided between the water tank return water inlet 24 and the return water inlet of the load 10. The filter 8 is used to filter the debris in the return water pipe to prevent blockage.

[0033] Specifically, it also includes a safety valve 14, and the water outlet of the terminal circulating water pump 4 is connected to the outside through the safety valve 14. When the water pressure exceeds the protection value set by the safety valve 14, the safety valve 14 opens to automatically release the pressure. The water outlet of the terminal circulating water pump 4 is also provided with a water pressure gauge 15 for detecting the water pressure.

[0034] Specifically, the integrated hydraulic module realizes dual circulation and triple water supply. The dual circulation includes main unit circulation and terminal circulation. Main unit circulation: the main unit circulation water pump 3 built into the product circulates with the heat pump main unit 9. The main unit circulation water pump 3 pumps the hot water generated by the heat pump main unit 9 to the buffer water tank 2, and sends the cold water in the lower part of the water tank to the heat pump main unit 9 for circulation heating after passing through the filter 8; terminal circulation: the terminal circulation water pump 4 supplies the hot water in the buffer water tank 2 to the load 10, and after circulation, it passes through the three-way valve 5 and the filter 8 and returns to the buffer water tank 2, and switches the flow direction of room heating and domestic hot water through the three-way valve 5. In addition, the purpose of triple water supply is achieved through the radiator 11, the fan disk 12 and the domestic hot water use equipment 13.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An integrated hydraulic module, arranged between a heat pump host and a load, characterized in that: It comprises a shell and a buffer water tank, wherein the buffer water tank is arranged in the shell; The buffer water tank comprises a water tank hot water inlet, a water tank return water outlet, a water tank hot water outlet and a water tank return water inlet, the water tank hot water inlet is connected with the water outlet of the heat pump host through a water pipe, the water tank return water outlet is connected with the return water inlet of the heat pump host, the water tank hot water outlet is connected with the water inlet of the load through a water pipe, and the water tank return water inlet is connected with the return water inlet of the load; The water tank hot water inlet and the water tank hot water outlet are arranged on the upper side of the buffer water tank, and the water tank return water outlet and the water tank return water inlet are arranged on the lower side of the buffer water tank.

2. An integrated hydraulic module according to claim 1, characterized in that: It also includes a main unit circulating water pump and a terminal circulating water pump, which are arranged in the housing; the water outlet of the heat pump main unit is connected to the water inlet of the main unit circulating water pump, and the water outlet of the main unit circulating water pump is connected to the hot water inlet of the water tank; The hot water outlet of the water tank is communicated with the water inlet of the terminal circulating water pump, and the water outlet of the terminal circulating water pump is communicated with the water inlet of the load.

3. An integrated hydraulic module according to claim 1, characterized in that: It also includes a three-way valve, which is arranged in the shell. The water tank return water inlet is connected to the first end of the three-way valve. The return water port of the load includes a heating return water port and a domestic hot water return water port. The second end of the three-way valve is connected to the heating return water port, and the third end of the three-way valve is connected to the domestic hot water return water port.

4. An integrated hydraulic module according to claim 2, characterized in that: It also includes an expansion tank, which is arranged in the shell, and the water inlet of the expansion tank is connected with the hot water outlet of the water tank and the input port of the terminal circulating water pump.

5. The integrated hydraulic module according to claim 2, characterized in that: It also includes an electric heating mechanism, which includes a heating wire. The heating wire is arranged in the buffer water tank and is located in the middle of the buffer water tank.

6. The integrated hydraulic module according to claim 1, characterized in that: It also includes a filter, which is arranged between the water tank return water outlet and the return water inlet of the heat pump host, and between the water tank return water inlet and the return water inlet of the load.

7. An integrated hydraulic module according to claim 2, characterized in that: It also includes a safety valve, through which the water outlet of the terminal circulating water pump is connected to the outside.

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