Air source heat pump two combined supply cold and warm automatic switching hydraulic module

Abstract

The utility model discloses an air source heat pump two combined supply cold and warm automatic switching hydraulic module, including the casing, the casing inside is installed with the baffle, one side of baffle is installed with the buffer water tank, the buffer water tank one side is connected with the host computer water inlet pipe and the return pipe, the host computer water inlet pipe is connected between the other side wall of casing and buffer water tank, the return pipe is connected between the top wall of casing and the lateral wall of buffer water tank, the top wall lower extreme of casing still is connected with the heating pipe and the refrigeration pipe, the lower extreme of refrigeration pipe and heating pipe all is connected with electric three -way valve, the utility model discloses the buffer water tank is installed on one side of baffle, and the pipeline is connected on the other side of baffle, and the pipeline and buffer water tank are integrated in the casing, make the equipment integration, modularization, reduced the equipment installation procedure of field, shortened the installation and debugging period of equipment, reduced the business travel expense of worker, reduced the cost.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, specifically to a hydraulic module for automatic switching between cooling and heating in a dual-supply air source heat pump. Background Technology

[0002] Existing air heat pump equipment consists of multiple devices and pipelines connected sequentially, which takes a long time to install and debug on-site, greatly increasing the travel costs for workers. Therefore, in order to reduce the installation and debugging costs of the equipment and labor costs, and to integrate and modularize the equipment for easy transportation, this hydraulic module was designed. It integrates the components and pipelines inside the shell, significantly reducing the on-site installation and debugging time. Utility Model Content

[0003] The purpose of this utility model is to provide a dual-supply air source heat pump automatic switching hydraulic module for cooling and heating. The buffer water tank is installed on one side of the partition, and the pipeline is connected to the other side of the partition. The cooling pipe, heating pipe, and return water pipe are installed on the top of the shell, and the main unit outlet pipe and main unit inlet pipe are installed on the other side of the shell. The pipeline and buffer water tank are integrated into the shell, making the equipment integrated and modular, reducing the on-site equipment installation procedures, shortening the equipment installation and commissioning cycle, reducing workers' travel expenses, and lowering costs.

[0004] This utility model provides the following technical solution: an air source heat pump dual-supply automatic switching hydraulic module for heating and cooling, comprising a housing, a partition installed inside the housing, a buffer water tank installed on one side of the partition, a main unit inlet pipe and a return water pipe connected to one side of the buffer water tank, the main unit inlet pipe connected between the other side wall of the housing and the buffer water tank, the return water pipe connected between the top wall of the housing and the side wall of the buffer water tank, a heating pipe and a cooling pipe connected to the lower end of the top wall of the housing, an electric three-way valve connected to the lower end of both the cooling pipe and the heating pipe, a main unit outlet pipe connected to the other end of the electric three-way valve, the main unit outlet pipe connected to the main unit, the other end of the main unit outlet pipe connected to the inner wall of the housing, and the return water pipe connected to the cooling pipe and the heating pipe through an external pipe.

[0005] To centralize the interfaces, the main unit's water inlet pipe and main unit's water outlet pipe are distributed vertically and are both connected to the inner wall of one side of the housing.

[0006] In order to control the water temperature, an outlet water temperature sensor is installed on the surface of the main unit's outlet water pipe, and a return water temperature sensor is installed on the surface of the return water pipe. A water pump is connected between the main unit's inlet water pipe and the buffer water tank, and a controller is connected to the water pump. Both the outlet water temperature sensor and the return water temperature sensor are connected to the controller.

[0007] In order to reduce the air pressure in the buffer tank and allow water to enter smoothly, an air vent valve is installed on the shell, and the air vent valve is connected to the buffer tank.

[0008] To ensure the safety of the buffer tank, a negative pressure valve and a safety valve are connected to the side of the buffer tank, both of which are located on the other side of the partition.

[0009] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0010] (1) Install the buffer tank on one side of the partition and connect the pipeline to the other side of the partition. Integrate the pipeline and the buffer tank into the shell, making the equipment integrated and modular, reducing the on-site equipment installation procedures, shortening the equipment installation and commissioning cycle, reducing workers' travel expenses, and lowering costs.

[0011] (2) At the same time, the cooling pipe, heating pipe and return water pipe are installed on the top of the shell to make the pipe connection centralized and convenient; the main unit outlet pipe and main unit inlet pipe are installed on the other side of the shell to further concentrate the connection ports and improve the connection efficiency of the equipment. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is an internal schematic diagram of the automatic heating and cooling switching hydraulic module of this utility model;

[0014] In the diagram: 1. Buffer water tank; 11. Negative pressure valve; 12. Safety valve; 2. Housing; 21. Baffle; 3. Air vent valve; 4. Return water pipe; 41. Return water temperature sensor; 5. Cooling pipe; 6. Heating pipe; 7. Main unit outlet water pipe; 71. Outlet water temperature sensor; 8. Electric three-way valve; 9. Main unit inlet water pipe; 91. Water pump; 92. Controller. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1This utility model provides a technical solution: a dual-supply, automatic switching hydraulic module for heating and cooling of an air source heat pump, comprising a housing 2, with a partition 21 welded inside the housing 2. A buffer water tank 1 is installed on one side of the partition 21, and a pipeline is provided on the other side of the partition 21. A main unit inlet pipe 9 and a return water pipe 4 are connected to one side of the buffer water tank 1. The main unit inlet pipe 9 is connected between the other side wall of the housing 2 and the buffer water tank 1, and is located on the other side of the partition 21. The return water pipe 4 is L-shaped and also located on the other side of the partition 21, connecting the top wall of the housing 2 and the side wall of the buffer water tank 1. The lower end of the top wall of the housing 2 is also connected to a heating pipe 6 and a cooling pipe 5, which are connected to the inner wall of the housing 2 via flanges or directly welded. The lower ends of both the cooling pipe 5 and the heating pipe 6 are connected to an electric three-way valve 8, which controls the output flow of the cooling pipe 5 and the heating pipe 6, further adjusting the main unit outlet pipe 7. The outlet water temperature is controlled by an electric three-way valve 8. The other end of the valve is connected to the main unit outlet pipe 7, which is connected to the main unit to distribute cold or hot water in the fan coil or floor heating radiator to achieve cooling or heating. The other end of the main unit outlet pipe 7 is connected to the inner wall of the housing 2. The return water pipe 4 is connected to the cooling pipe 5 and the heating pipe 6 through an external pipeline to send the water discharged from the return water pipe 4 into the heating or cooling equipment to heat or cool the water. This utility model fixes the main unit inlet pipe 9, the main unit outlet pipe 7, the heating pipe 6, the cooling pipe 5, and the return water pipe 4 inside the housing 2, and integrates the pipeline and the buffer water tank 1 into a modular system. During production, all of them are integrated into the housing 2, which reduces the on-site installation process of the equipment, shortens the installation and commissioning cycle of the equipment, significantly reduces the travel expenses of workers, reduces costs, and improves the competitiveness of the product. During maintenance, the side plate on one side of the housing 2 can be disassembled to facilitate access to both sides of the partition 21 for equipment maintenance.

[0017] The main unit's water inlet pipe 9 and main unit's water outlet pipe 7 are distributed vertically and are both connected to the inner wall of one side of the housing 2. This makes the main unit's water inlet pipe 9 and main unit's water outlet pipe 7 on the same side of the housing 2, reducing the pipe connection surface of the hydraulic module and setting all the connection positions on the same side, thus improving the connection efficiency of the equipment.

[0018] A water outlet temperature sensor 71 is installed on the surface of the main unit's water outlet pipe 7, and a water return temperature sensor 41 is installed on the surface of the water return pipe 4. A water pump 91 is connected between the main unit's water inlet pipe 9 and the buffer water tank 1. A controller 92 is connected to the water pump 91. Both the water outlet temperature sensor 71 and the water return temperature sensor 41 are connected to the controller 92. The water outlet temperature sensor 71 detects the water outlet temperature, and the water return temperature sensor 41 detects the water inlet temperature. The temperature difference is obtained and transmitted to the controller 92. The controller 92 controls the opening of the electric three-way valve 8 to control the flow rate of hot and cold water, so that the temperature of the mixture is the same as the required water temperature.

[0019] An air vent valve 3 is installed on the housing 2. The air vent valve 3 is connected to the buffer water tank 1. The air vent valve 3 is used to release the gas in the buffer water tank 1 to ensure smooth water intake of the buffer water tank 1.

[0020] A negative pressure valve 11 and a safety valve 12 are connected to the side of the buffer tank 1. Both the negative pressure valve 11 and the safety valve 12 are located on the other side of the partition 21. The safety of the buffer tank 1 is ensured by the negative pressure valve 11 and the safety valve 12.

[0021] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual-supply, cooling and heating automatic switching hydraulic module for an air source heat pump, comprising a housing, characterized in that: The shell contains a partition, and a buffer water tank is installed on one side of the partition. A main unit inlet pipe and a return pipe are connected to one side of the buffer water tank. The main unit inlet pipe is connected between the other side wall of the shell and the buffer water tank. The return pipe is connected between the top wall of the shell and the side wall of the buffer water tank. A heating pipe and a cooling pipe are also connected to the lower end of the top wall of the shell. An electric three-way valve is connected to the lower end of both the heating pipe and the cooling pipe. The other end of the electric three-way valve is connected to the main unit outlet pipe, which is connected to the main unit. The other end of the main unit outlet pipe is connected to the inner wall of the shell. The return pipe is connected to the cooling pipe and the heating pipe through an external pipe.

2. The air source heat pump dual-supply, automatic switching hydraulic module for cooling and heating as described in claim 1, characterized in that: The main unit's water inlet pipe and main unit's water outlet pipe are distributed vertically and are both connected to the inner wall of one side of the housing.

3. The air source heat pump dual-supply, automatic switching hydraulic module for heating and cooling as described in claim 1, characterized in that: A water outlet temperature sensor is installed on the surface of the main unit's water outlet pipe, and a water return temperature sensor is installed on the surface of the water return pipe. A water pump is connected between the main unit's water inlet pipe and the buffer water tank. A controller is connected to the water pump, and both the water outlet temperature sensor and the water return temperature sensor are connected to the controller.

4. The air source heat pump dual-supply, automatic switching hydraulic module for heating and cooling as described in claim 1, characterized in that: An exhaust valve is installed on the housing, and the exhaust valve is connected to the buffer water tank.

5. A hydraulic module for automatic switching between cooling and heating in a dual-supply air source heat pump according to claim 1, characterized in that: A negative pressure valve and a safety valve are connected to the side of the buffer tank, and both the negative pressure valve and the safety valve are located on the other side of the partition.

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