Water source heat pump hot water air conditioning unit

Abstract

The water source heat pump hot water air conditioning unit comprises a compressor, a three-way electromagnetic valve, a four-way reversing valve, an air conditioning heat exchanger, a water source heat exchanger, a hot water heat exchanger and a gas-liquid separator. An exhaust pipe of the compressor is connected with an input port of the three-way electromagnetic valve, a first output port of the three-way electromagnetic valve is connected with a first valve port of the four-way reversing valve, and a second valve port of the four-way reversing valve is connected with a first port of the water source heat exchanger. A third valve port of the four-way reversing valve is connected with an inlet of the gas-liquid separator, and an outlet of the gas-liquid separator is connected with an air suction pipe of the compressor; a fourth valve port of the four-way reversing valve is connected with a first port of the air conditioner heat exchanger; a second filter, a second expansion valve and a third filter are arranged on a pipeline for connecting a second port of the water source heat exchanger and a second port of the air conditioner heat exchanger; a second output port of the three-way electromagnetic valve is connected with a first port of the hot water heat exchanger. A second port of the hot water heat exchanger is connected with a second port of the water source heat exchanger through a first filter and a first expansion valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of air-conditioning units and relates to a water source heat pump hot water air-conditioning unit. Background Art

[0002] Existing groundwater air conditioning units only have single cooling or heating functions and lack hot water supply capabilities. They require extensive manual maintenance and require multiple valve adjustments to switch between cooling and heating, resulting in significant annual maintenance and operating costs. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the present utility model is to provide a water source heat pump hot water air conditioning unit, which can realize independent cooling or heating and independent hot water supply, and can also realize cooling or heating and hot water supply at the same time; using water source heat pump technology, the solar energy and geothermal energy absorbed by shallow water sources on the earth's surface are extracted and applied.

[0004] The utility model discloses a water source heat pump hot water air conditioning unit, comprising: a compressor, a three-way solenoid valve, a four-way reversing valve, an air conditioning heat exchanger, a water source heat exchanger, a hot water heat exchanger, a first filter, a second filter, a third filter, a first expansion valve, a second expansion valve and a gas-liquid separator; the exhaust pipe of the compressor is connected to the input port of the three-way solenoid valve, the first output port of the three-way solenoid valve is connected to the first valve port of the four-way reversing valve, and the second valve port of the four-way reversing valve is connected to the first port of the water source heat exchanger; the third valve port of the four-way reversing valve is connected to the inlet of the gas-liquid separator, and the outlet of the gas-liquid separator is connected to the suction pipe of the compressor; the fourth valve port of the four-way reversing valve is connected to the first port of the air conditioning heat exchanger; a second filter, a second expansion valve and a third filter are sequentially provided on the pipeline connecting the second port of the water source heat exchanger and the second port of the air conditioning heat exchanger; the second output port of the three-way solenoid valve is connected to the first port of the hot water heat exchanger, and the second port of the hot water heat exchanger is connected to the second port of the water source heat exchanger through the first filter and the first expansion valve.

[0005] Furthermore, a pressure switch and a temperature sensor are provided on both the exhaust pipe and the intake pipe of the compressor.

[0006] Furthermore, the hot water heat exchanger, air-conditioning heat exchanger, and water source heat exchanger are all provided with water inlet pipes and water outlet pipes; the water inlet pipe of the water source heat exchanger is connected to the underground water pumping well, and the water outlet pipe of the water source heat exchanger is connected to the underground recharge well; the water inlet pipe and water outlet pipe of the air-conditioning heat exchanger are connected to the user's terminal air-conditioning equipment; the water inlet pipe and water outlet pipe of the hot water heat exchanger are connected to the hot water storage tank.

[0007] Furthermore, a temperature sensor is provided on each water inlet pipe and each water outlet pipe, and a water flow switch is provided on each water outlet pipe; the water flow switch, the pressure switch, and the temperature sensor are all connected to the controller.

[0008] Furthermore, a sight glass is provided on the pipeline connecting the second port of the air-conditioning heat exchanger and the second port of the water source heat exchanger.

[0009] This utility model is a water source heat pump hot water air conditioning unit that can achieve independent cooling or heating and independent hot water supply. It can also achieve simultaneous cooling or heating and hot water supply. At the same time, it uses water source heat pump technology to extract and apply solar energy and geothermal energy absorbed by shallow water sources on the earth's surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural diagram of a water source heat pump hot water air conditioning unit of the utility model;

[0011] 1- compressor, 2- three-way solenoid valve, 3- four-way reversing valve, 4- air conditioning heat exchanger, 5- water source heat exchanger, 6- hot water heat exchanger, 7- first filter, 8- second filter, 9- third filter, 10- first expansion valve, 11- second expansion valve, 12- gas-liquid separator, 13- sight glass, 14- pressure switch, 15- temperature sensor, 16- water flow switch, 17- underground water well, 18- underground return well. DETAILED DESCRIPTION

[0012] like Figure 1 As shown, a water source heat pump hot water air conditioning unit of the present invention includes: a compressor 1, a three-way solenoid valve 2, a four-way reversing valve 3, an air conditioning heat exchanger 4, a water source heat exchanger 5, a hot water heat exchanger 6, a first filter 7, a second filter 8, a third filter 9, a first expansion valve 10, a second expansion valve 11 and a gas-liquid separator 12.

[0013] The exhaust pipe of the compressor 1 is connected to the input port of the three-way solenoid valve 2, the first output port of the three-way solenoid valve 2 is connected to the first valve port of the four-way reversing valve 3, and the second valve port of the four-way reversing valve 3 is connected to the first port of the water source heat exchanger 5. The third valve port of the four-way reversing valve 3 is connected to the inlet of the gas-liquid separator 12, and the outlet of the gas-liquid separator 12 is connected to the intake pipe of the compressor 1. The fourth valve port of the four-way reversing valve 3 is connected to the first port of the air conditioning heat exchanger 4. A second filter 8, a second expansion valve 11, and a third filter 9 are sequentially provided on the pipeline connecting the second port of the water source heat exchanger 5 and the second port of the air conditioning heat exchanger 4. The second output port of the three-way solenoid valve 2 is connected to the first port of the hot water heat exchanger 6, and the second port of the hot water heat exchanger 6 is connected to the second port of the water source heat exchanger 5 through the first filter 7 and the first expansion valve 10.

[0014] A pressure switch 14 and a temperature sensor 15 are provided on both the exhaust pipe and the intake pipe of the compressor 1 .

[0015] The hot water heat exchanger 6, air conditioning heat exchanger 4, and water source heat exchanger 5 are all equipped with water inlet and outlet pipes. The water source heat exchanger 5's water inlet pipe is connected to an underground water pumping well 17, while its outlet pipe is connected to an underground return well 18. The air conditioning heat exchanger 4's water inlet and outlet pipes are connected to the user's end-user air conditioning equipment; the hot water heat exchanger 6's water inlet and outlet pipes are connected to a hot water storage tank.

[0016] A temperature sensor 15 is provided on each water inlet pipe and outlet pipe of the hot water heat exchanger 6, the air conditioning heat exchanger 4, and the water source heat exchanger 5, and a water flow switch 16 is provided on each water outlet pipe; the water flow switch 16, the pressure switch 14, and the temperature sensor 15 are all connected to the controller.

[0017] A sight glass 13 is provided on the pipeline connecting the second port of the air-conditioning heat exchanger 4 and the second port of the water source heat exchanger 5 .

[0018] The utility model discloses a water source heat pump hot water air conditioning unit with three functions of cooling, heating and hot water supply.

[0019] During cooling operation, compressor 1 discharges high-temperature, high-pressure gaseous refrigerant, which enters the input port of three-way solenoid valve 2. It then exits through the first output port of three-way solenoid valve 2 and enters the first port of four-way reversing valve 3. From the second port of four-way reversing valve 3, it enters water source heat exchanger 5, where it exchanges heat with groundwater from underground pumping well 17 flowing into water source heat exchanger 5, condenses, and releases heat. The refrigerant's temperature is lowered by the groundwater in water source heat exchanger 5 before flowing out of the outlet pipe and back into underground return well 18. After heat exchange, the refrigerant changes from gas to liquid, passes through second filter 8, second expansion valve 11, and third filter 9, and becomes a medium-temperature liquid refrigerant. The medium-temperature liquid refrigerant enters air conditioning heat exchanger 4, absorbs heat from the air conditioning water, and evaporates. The generated cooling energy is then exchanged with the air conditioning circulating water, and then flows out of the outlet pipe of air conditioning heat exchanger 4 for air conditioning cooling. The evaporated low-pressure medium-temperature gaseous refrigerant enters the fourth valve port of the electromagnetic four-way valve 3 , then flows out from the third valve port of the electromagnetic four-way valve 3 into the gas-liquid separator 12 , and finally returns to the compressor 1 .

[0020] During heating operation, high-temperature, high-pressure gaseous refrigerant discharged from compressor 1 enters the input port of three-way solenoid valve 2. It then flows out of the first output port of three-way solenoid valve 2 and into the first port of four-way reversing valve 3. It then flows out of the fourth port of four-way reversing valve 3 into air conditioning heat exchanger 4, where it condenses and releases heat. The refrigerant's temperature is then exchanged with the circulating water in air conditioning heat exchanger 4 before being supplied to the air conditioner. The high-pressure, medium-temperature refrigerant liquid, throttled and reduced in pressure by the third filter 9, second expansion valve 11, and second filter 8, enters water source heat exchanger 5, where it absorbs heat and evaporates. The generated cooling energy is then exchanged with groundwater in water source heat exchanger 5 and flows back to the underground return well 18 through the outlet pipe. The evaporated, low-pressure, medium-temperature gaseous refrigerant enters the second port of four-way reversing valve 3, flows out of the third port into gas-liquid separator 12, and ultimately returns to compressor 1.

[0021] When hot water is supplied: compressor 1 discharges high-temperature and high-pressure gas refrigerant, enters the input port of the three-way solenoid valve 2, and enters the hot water heat exchanger 6 after being output from the second output port of the three-way solenoid valve 2. It exchanges heat with the circulating water in the hot water heat exchanger 6, and the condensed liquid refrigerant enters the first filter 7 and the first expansion valve 10. The medium-temperature and high-pressure liquid refrigerant after throttling and pressure reduction enters the water source heat exchanger 5, absorbs the heat of the groundwater in the water source heat exchanger 5 and becomes gaseous, then enters the second valve port of the electromagnetic four-way valve 3, and then flows out from the third valve port of the electromagnetic four-way valve 3 into the gas-liquid separator 12, and finally returns to the compressor 1.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the concept of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water source heat pump hot water air conditioning unit, characterized in that: include: Compressor, three-way solenoid valve, four-way reversing valve, air conditioning heat exchanger, water source heat exchanger, hot water heat exchanger, first filter, second filter, third filter, first expansion valve, second expansion valve and gas-liquid separator; The exhaust pipe of the compressor is connected to the input port of the three-way solenoid valve, the first output port of the three-way solenoid valve is connected to the first valve port of the four-way reversing valve, and the second valve port of the four-way reversing valve is connected to the first port of the water source heat exchanger; the third valve port of the four-way reversing valve is connected to the inlet of the gas-liquid separator, and the outlet of the gas-liquid separator is connected to the suction pipe of the compressor; the fourth valve port of the four-way reversing valve is connected to the first port of the air-conditioning heat exchanger; a second filter, a second expansion valve and a third filter are sequentially provided on the pipeline connecting the second port of the water source heat exchanger and the second port of the air-conditioning heat exchanger; the second output port of the three-way solenoid valve is connected to the first port of the hot water heat exchanger, and the second port of the hot water heat exchanger is connected to the second port of the water source heat exchanger through the first filter and the first expansion valve.

2. The water source heat pump hot water air conditioning unit according to claim 1, characterized in that: The exhaust pipe and the intake pipe of the compressor are both provided with a pressure switch and a temperature sensor.

3. The water source heat pump hot water air conditioning unit according to claim 2, characterized in that: The hot water heat exchanger, air conditioning heat exchanger, and water source heat exchanger are all provided with water inlet pipes and water outlet pipes; the water inlet pipe of the water source heat exchanger is connected to the underground water pumping well, and the water outlet pipe of the water source heat exchanger is connected to the underground return water well; the water inlet pipe and water outlet pipe of the air conditioning heat exchanger are connected to the user's terminal air conditioning equipment; the water inlet pipe and water outlet pipe of the hot water heat exchanger are connected to the hot water storage tank.

4. The water source heat pump hot water air conditioning unit according to claim 3, characterized in that: A temperature sensor is provided on each water inlet pipe and outlet pipe, and a water flow switch is provided on each water outlet pipe; the water flow switch, pressure switch and temperature sensor are all connected to the controller.

5. The water source heat pump hot water air conditioning unit according to claim 1, characterized in that: A sight glass is provided on the pipeline connecting the second port of the air-conditioning heat exchanger and the second port of the water source heat exchanger.

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