Heat pump unit

Abstract

The utility model relates to the technical field of air source heat pumps, and discloses a heat pump unit. The heat pump unit is characterized in that a compressor is fixedly connected into the heat pump unit, the output end of the compressor is fixedly connected with a four-way valve, the output end of the four-way valve is fixedly connected with a water side heat exchanger, the output end of the water side heat exchanger is fixedly connected with a throttling assembly, and the output end of the throttling assembly is fixedly connected with a finned heat exchanger; according to the utility model, a set of water box with a built-in anti-corrosion heat exchanger and parts such as an electric three-way valve or an electric two-way valve is used for keeping the temperature of a swimming pool and the temperature of a massage bathtub constant; the control panel controls all parts in the system to achieve conversion of five modes of room refrigeration, room heating, domestic hot water, swimming pool constant temperature and massage bathtub constant temperature, and the installation cost and the use cost of a user are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air source heat pumps, in particular to a heat pump unit. Background Art

[0002] Most of the products on the market now are trigeneration systems, that is, one unit has three modes: domestic hot water, room cooling, and room heating. When the unit is running in the domestic hot water mode, the air energy heat pump unit works on the refrigerant through the compressor, discharges the high-temperature and high-pressure refrigerant, passes through the water heat exchanger, transfers the heat to the water side, heats the water, and the refrigerant passing through the water side becomes medium-temperature and high-pressure refrigerant, and then passes through the throttling component for throttling expansion to form a low-temperature and low-pressure refrigerant, passes through the fin heat exchanger, absorbs heat from the air, and then returns to the compressor, reciprocating to heat the water, the heated water passes through the water pump, and at the same time, through the conversion of the unit-controlled three-way valve, the hot water is connected to the domestic hot water tank, and the water in the domestic hot water tank is heated to achieve the effect of producing domestic hot water; when the unit is running in the room heating mode, the hot water is connected to the buffer water tank through the conversion of the water pump and the electric three-way valve controlled by the unit, and the water channel at the other end of the buffer water tank is connected to the fan coil or floor heating system through the conversion of the electric three-way valve controlled by the unit.

[0003] Heat the indoor environment to achieve the effect of room heating;

[0004] When the unit operates in room cooling mode, the air source heat pump unit switches the direction of the four-way valve, changes the refrigerant in the water-side heat exchanger to a low-temperature, low-pressure refrigerant, exchanges heat with water, cools the water, and outputs low-temperature water. The low-temperature water is connected to the expansion water tank through a water pump and an electric three-way valve controlled by the unit. The water channel at the other end of the expansion water tank is connected to the fan coil through the conversion of the electric three-way valve controlled by the unit. The fan forces convection of the air to cool the environment, thereby achieving a cooling effect.

[0005] As for the market, users not only have demands for domestic hot water, room cooling and room heating at home, but also for constant temperature of swimming pools and jacuzzis. Since the trigeneration heat pump system on the market uses a water-side heat exchanger made of non-corrosion-resistant material, there is a risk of corrosion and leakage of the heat exchanger when swimming pool water is directly introduced into the system. At this time, it is necessary to add a new air source heat pump equipment to heat the swimming pool or jacuzzis separately. At this time, there will be the problem of purchasing and installing more than one system, which will increase the user's investment cost and usage cost. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the shortcomings of the existing technology, the utility model provides a heat pump unit, which can solve the five different needs of users in their homes, namely, domestic hot water, room heating, room cooling, swimming pool constant temperature, and massage bathtub constant temperature, and provides a complete solution. Only one machine needs to be installed to meet the five different needs, reducing the user's investment cost and use cost, and solving the above technical problems.

[0008] (II) Technical solution

[0009] To achieve the above object, the utility model provides the following technical solution: comprising a heat pump unit, wherein the heat pump unit is characterized in that a compressor is fixedly connected inside the heat pump unit, a four-way valve is fixedly connected to the output end of the compressor, and a water-side heat exchanger is fixedly connected to the output end of the four-way valve;

[0010] The output end of the water side heat exchanger is fixedly connected with a throttling assembly, the output end of the throttling assembly is fixedly connected with a finned heat exchanger, the output end of the finned heat exchanger is fixedly connected with a four-way valve, and the four-way valve is fixedly connected with the compressor through a pipeline;

[0011] The right side of the water side heat exchanger is connected to a swimming pool massage bathtub water box through a pipeline, the interior of the swimming pool massage bathtub water box is fixedly connected to an anti-corrosion water heat exchanger, the upper surface of the anti-corrosion water heat exchanger is fixedly connected to a water outlet temperature protector, and the output end of the water outlet temperature protector is fixedly connected to a first electric three-way valve.

[0012] As a preferred technical solution of the utility model, the right side of the water-side heat exchanger is fixedly connected to a domestic hot water tank through a first pipe, the lower surface of the domestic hot water tank is fixedly connected to an expansion tank, and the upper surface of the domestic hot water tank is fixedly connected to a solar heater.

[0013] As a preferred technical solution of the utility model, a fourth electric three-way valve is fixedly connected to the side surface of the first pipeline, a third electric three-way valve is fixedly connected to the side surface of the first pipeline, and the third electric three-way valve is located on the right side of the fourth electric three-way valve.

[0014] As a preferred technical solution of the utility model, the right side of the expansion water tank is fixedly connected to the fan coil system through a second pipe, the side surface of the second pipe is fixedly connected to a second electric three-way valve, the output end of the second electric three-way valve is fixedly connected to a radiator, and the radiator and the fan coil system are connected through a pipe.

[0015] As a preferred technical solution of the utility model, the output end of the second electric three-way valve is fixedly connected to a floor heating water mixing electric three-way valve, and the floor heating water mixing electric three-way valve is located below the radiator, and the output end of the floor heating water mixing electric three-way valve is fixedly connected to the floor heating system.

[0016] As a preferred technical solution of the present utility model, an equipment control panel is arranged above the heat pump unit.

[0017] Compared with the prior art, the utility model provides a heat pump unit with the following beneficial effects: in a conventional trigeneration system, a set of water boxes with built-in corrosion-resistant heat exchangers and electric three-way valves or electric two-way valves and other components for constant temperature of swimming pools and massage bathtubs is added; through the mode selection of the heat pump host, the control panel controls the various components in the system to achieve the conversion of five modes of room cooling, room heating, domestic hot water, constant temperature of swimming pools, and constant temperature of massage bathtubs, thereby reducing the user's installation costs and usage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the room heating, domestic hot water and room cooling system of the utility model;

[0019] Figure 2 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0020] Among them: 1. Equipment control panel; 2. Throttling component; 3. Fin heat exchanger; 4. Four-way valve; 5. Compressor; 6. Water side heat exchanger; 7. Corrosion-resistant water heat exchanger; 8. Swimming pool massage bathtub water box; 9. First electric three-way valve; 10. Outlet water temperature protector; 11. Floor heating mixing water electric three-way valve; 12. Floor heating system; 13. Radiator; 14. Fan coil system; 15. Second electric three-way valve; 16. Expansion water tank; 17. Domestic hot water tank; 18. Third electric three-way valve; 19. Fourth electric three-way valve; 20. Solar heater; 21. Heat pump unit. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "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; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-2 A heat pump unit 21 is provided, wherein a compressor 5 is fixedly connected inside, a four-way valve 4 is fixedly connected to the output end of the compressor 5, a water-side heat exchanger 6 is fixedly connected to the output end of the four-way valve 4, a throttling assembly 2 is fixedly connected to the output end of the water-side heat exchanger 6, a fin-type heat exchanger 3 is fixedly connected to the output end of the throttling assembly 2, the output end of the fin-type heat exchanger 3 is fixedly connected to the four-way valve 4, and the four-way valve 4 is fixedly connected to the compressor 5 through a pipeline, the right side of the water-side heat exchanger 6 is connected to a swimming pool massage bathtub water box 8 through a pipeline, and the interior of the swimming pool massage bathtub water box 8 is fixedly connected to an anti-corrosion water heat exchanger The upper surface of the corrosion-resistant water heat exchanger 7 is fixedly connected with a water outlet temperature protector 10, and the output end of the water outlet temperature protector 10 is fixedly connected with a first electric three-way valve 9. The compressor 5 through which the equipment passes works on the refrigerant, discharges the high-temperature and high-pressure refrigerant, and passes through the corrosion-resistant water heat exchanger 7 to transfer the heat to the water-side heat exchanger 6 to heat the water. The refrigerant passing through the water-side heat exchanger 6 becomes a refrigerant at normal temperature and high pressure, and then passes through the throttling component 2 for throttling expansion to form a low-temperature and low-pressure refrigerant, passes through the finned heat exchanger 3, absorbs heat from the air, and then returns to the compressor 5, and the reciprocating cycle heats the water.

[0025] The right side of the water-side heat exchanger 6 is fixedly connected to a domestic hot water tank 17 through a first pipeline, the lower surface of the domestic hot water tank 17 is fixedly connected to an expansion tank 16, the upper surface of the domestic hot water tank 17 is fixedly connected to a solar heater 20, the side surface of the first pipeline is fixedly connected to a fourth electric three-way valve 19, the side surface of the first pipeline is fixedly connected to a third electric three-way valve 18, and the third electric three-way valve 18 is located on the right side of the fourth electric three-way valve 19, the right side of the expansion tank 16 is fixedly connected to a fan coil system 14 through a second pipeline, the side surface of the second pipeline is fixedly connected to a second electric three-way valve 15, and the output of the second electric three-way valve 15 is fixedly connected to the side surface of the second pipeline. The outlet end is fixedly connected with a radiator 13, and the radiator 13 is connected to the fan coil system 14 through a pipeline. The output end of the second electric three-way valve 15 is fixedly connected with a floor heating water mixing three-way valve 11, and the floor heating water mixing three-way valve 11 is located below the radiator 13. The output end of the floor heating water mixing three-way valve 11 is fixedly connected with the floor heating system 12. An equipment control panel 1 is arranged above the heat pump unit 21. When the unit runs in hot water mode: the outlet water of the water side heat exchanger 6 passes through the fourth electric three-way valve 19 and the third electric three-way valve 18, and the hot water is connected to the heat exchange coil in the domestic hot water tank 17 to heat the water in the domestic hot water tank 17 to achieve the purpose of producing hot water. Effect; when the unit operates in room heating mode: the outlet water of the water-side heat exchanger 6 passes through the fourth electric three-way valve 19 and the third electric three-way valve 18, and the hot water is connected to the expansion water tank 16, and the water channel at the other end of the expansion water tank 16 passes through the second electric three-way valve 15 and is connected to the fan coil system 14 or the floor heating system 12, so as to heat the environment and achieve the effect of room heating; when the unit operates in room cooling mode: the air source heat pump unit 21 switches the direction of the four-way valve 4, and the refrigerant of the water-side heat exchanger 6 is a low-temperature and low-pressure refrigerant for heat exchange with water, so as to cool the water and output low-temperature water, which passes through the fourth electric three-way valve 19 and the third electric three-way valve 18. The three electric three-way valves 18 are connected to the expansion water tank 16, and the water channel at the other end of the expansion water tank 16 is connected to the fan coil system 14 through the second electric three-way valve 15. The forced convection of the air by the fan cools the environment, thereby achieving the effect of room cooling; when the swimming pool constant temperature mode or the massage bathtub constant temperature mode is running: the water outlet of the water side heat exchanger 6 is connected to the anti-corrosion water heat exchanger 7 through the fourth electric three-way valve 19 for heat exchange; and the water after heat exchange passes through the fourth electric three-way valve 19 to control the unit to run the swimming pool constant temperature or the massage bathtub constant temperature, thereby realizing the function switching between the swimming pool constant temperature pool heating and the massage bathtub soaking pool heating. For the application scenario of the massage bathtub, a water outlet temperature protector 10 is added on the water outlet side to control the water outlet temperature ≤43°C to avoid the problem of scalding.

[0026] When in use, the equipment processes the refrigerant through the compressor 5, discharges the high-temperature and high-pressure refrigerant, passes through the corrosion-resistant water heat exchanger 7 to transfer the heat to the water-side heat exchanger 6 to heat the water, and the refrigerant passing through the water-side heat exchanger 6 becomes a refrigerant at room temperature and high pressure, and then passes through the throttling component 2 for throttling expansion to form a low-temperature and low-pressure refrigerant, passes through the finned heat exchanger 3, absorbs heat from the air, and then returns to the compressor 5, reciprocating the cycle to heat the water. When the unit runs in hot water mode: the water outlet of the water-side heat exchanger 6 is The hot water is connected to the heat exchange coil in the domestic hot water tank 17 through the fourth electric three-way valve 19 and the third electric three-way valve 18, and the water in the domestic hot water tank 17 is heated to achieve the effect of producing hot water; when the unit operates in the room heating mode: the outlet water of the water side heat exchanger 6 passes through the fourth electric three-way valve 19 and the third electric three-way valve 18, and the hot water is connected to the expansion tank 16, and the water channel at the other end of the expansion tank 16 is connected to the fan coil system through the second electric three-way valve 15. The air source heat pump unit 21 switches the direction of the four-way valve 4 to convert the refrigerant in the water side heat exchanger 6 into a low-temperature and low-pressure refrigerant for heat exchange with water to cool the water and output low-temperature water. The low-temperature water passes through the fourth electric three-way valve 19 and the third electric three-way valve 18 and is connected to the expansion water tank 16. The water channel at the other end of the expansion water tank 16 passes through the second electric three-way valve 15 and is connected to the fan coil system 14. The environment is cooled by forced convection of the air by the fan, thereby achieving a cooling effect. When the swimming pool constant temperature mode or the massage bathtub constant temperature mode is operated: the outlet water of the water side heat exchanger 6 is connected to the corrosion-resistant water heat exchanger 7 through the fourth electric three-way valve 19 for heat exchange. The water after heat exchange passes through the fourth electric three-way valve 19 to control the unit to operate the swimming pool constant temperature or the massage bathtub constant temperature, thereby realizing the function switching between the swimming pool constant temperature pool heating and the massage bathtub soaking pool heating. For the application scenario of the massage bathtub, a water outlet temperature protector 10 is added on the water outlet side to control the water outlet temperature to ≤43°C to avoid scalding problems.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat pump unit, characterized in that: A compressor (5) is fixedly connected inside, the output end of the compressor (5) is fixedly connected to a four-way valve (4), and the output end of the four-way valve (4) is fixedly connected to a water-side heat exchanger (6); The output end of the water-side heat exchanger (6) is fixedly connected to a throttling assembly (2), the output end of the throttling assembly (2) is fixedly connected to a finned heat exchanger (3), the output end of the finned heat exchanger (3) is fixedly connected to a four-way valve (4), and the four-way valve (4) is fixedly connected to a compressor (5) via a pipeline; The right side surface of the water-side heat exchanger (6) is connected to a swimming pool massage bathtub water box (8) through a pipeline, the interior of the swimming pool massage bathtub water box (8) is fixedly connected to an anti-corrosion water heat exchanger (7), the upper surface of the anti-corrosion water heat exchanger (7) is fixedly connected to a water outlet temperature protector (10), and the output end of the water outlet temperature protector (10) is fixedly connected to a first electric three-way valve (9).

2. A heat pump unit according to claim 1, characterized in that: The right side surface of the water-side heat exchanger (6) is fixedly connected to a domestic hot water tank (17) via a first pipe, the lower surface of the domestic hot water tank (17) is fixedly connected to an expansion tank (16), and the upper surface of the domestic hot water tank (17) is fixedly connected to a solar heater (20).

3. A heat pump unit according to claim 2, characterized in that: A fourth electric three-way valve (19) is fixedly connected to the side surface of the first pipeline, a third electric three-way valve (18) is fixedly connected to the side surface of the first pipeline, and the third electric three-way valve (18) is located on the right side of the fourth electric three-way valve (19).

4. A heat pump unit according to claim 2, characterized in that: The right side surface of the expansion water tank (16) is fixedly connected to the fan coil system (14) via a second pipeline, the side surface of the second pipeline is fixedly connected to a second electric three-way valve (15), the output end of the second electric three-way valve (15) is fixedly connected to a radiator (13), and the radiator (13) and the fan coil system (14) are connected via a pipeline.

5. A heat pump unit according to claim 4, characterized in that: The output end of the second electric three-way valve (15) is fixedly connected to a floor heating water mixing three-way valve (11), and the floor heating water mixing three-way valve (11) is located below the radiator (13), and the output end of the floor heating water mixing three-way valve (11) is fixedly connected to a floor heating system (12).

6. A heat pump unit according to claim 1, characterized in that: An equipment control panel (1) is arranged above the heat pump unit (21).

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