Cold and hot water recycling device of water source heat pump unit

Abstract

The utility model discloses a water source heat pump unit cold and hot water recycling device which comprises a base, a heat pump unit body is fixedly installed at the top of the base, a water suction pump located on one side of the heat pump unit body is fixedly installed at the top of the base, and a buffer water tank is fixedly installed at the top of the heat pump unit body. A cooling water inlet located on one side of the buffer water tank is formed in the top of the heat pump unit body, a cooling water outlet located on the other side of the buffer water tank is formed in the top of the heat pump unit body, a cooling water inlet is formed in one side of the buffer water tank, and a water inlet pipe located above the water suction pump is fixedly installed on one side of the heat pump unit body. Water discharged after heat exchange is recycled, a large amount of waste of water resources is prevented, environmental protection of the device is facilitated, the water resources can be conveniently and directly utilized, and convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water source heat pump units, in particular to a cold and hot water circulation utilization device for a water source heat pump unit. Background Art

[0002] A water source heat pump unit is an integrated water-to-air or water-to-water air conditioning device that uses water as a heat source and can perform cooling or heating cycles. It uses water as a heat source for heating and as a heat source for cooling.

[0003] During the application process, the existing water source heat pump unit hot and cold water energy-saving device makes it difficult to recycle the water discharged after heat exchange for the unit body, resulting in a large amount of waste of water resources, which is not conducive to the environmental protection of the device. In addition, the existing device can usually only store the water source and cannot directly use the water source, which reduces the convenience of the device.

[0004] To this end, we propose a hot and cold water circulation device for a water source heat pump unit. Utility Model Content

[0005] The purpose of the present invention is to provide a hot and cold water circulation device for a water source heat pump unit to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water source heat pump unit hot and cold water circulation device, comprising a base, a heat pump unit body is fixedly installed on the top of the base, a water pump located on one side of the heat pump unit body is fixedly installed on the top of the base, a buffer water tank is fixedly installed on the top of the heat pump unit body, a cooling water inlet located on one side of the buffer water tank is provided on the top of the heat pump unit body, a cooling water outlet located on the other side of the buffer water tank is provided on the top of the heat pump unit body, the cooling water inlet on one side of the buffer water tank, a water inlet pipe located above the water pump is fixedly installed on one side of the heat pump unit body, a water outlet pipe located in front of the water inlet pipe is provided on one side of the heat pump unit body, the other end of the water inlet pipe is fixedly installed with the water outlet of the water pump, the water inlet of the water pump is fixedly installed with a water inlet pipe, a water inlet conduit is fixedly installed on the side of the buffer water tank close to the cooling water outlet, and a cooling water outlet is fixed on the side of the buffer water tank close to the cooling water inlet. A connecting conduit is fixedly installed, a cooling water pump is provided in the middle of the connecting conduit, the other end of the connecting conduit is fixedly installed with the cooling water inlet, the cooling water outlet is fixedly installed with a circulation conduit, a circulating water pump is provided at the connection between the water inlet conduit and the buffer water tank, the other end of the water inlet conduit is fixedly installed with a diverter pipe, one end of the diverter pipe is fixedly installed with the middle of the water outlet pipe, the other end of the diverter pipe is fixedly installed with the circulation conduit, the other end of the circulation conduit is fixedly installed with the middle of the water inlet pipe, the circulation conduit is fixedly installed with a discharge conduit near the cooling water outlet, the other end of the discharge conduit is fixedly installed with the side of the water outlet pipe away from the heat pump unit body, the diverter pipe is fixedly installed with a second stop valve located on one side of the water inlet conduit, the diverter pipe is fixedly installed with a third stop valve located on the other side of the water inlet conduit, the circulation conduit is fixedly installed with a first stop valve located between the diverter pipe and the discharge conduit, and the water inlet pipe and the water outlet pipe are respectively provided with temperature sensors.

[0007] Optionally, the temperature sensor of the water inlet pipe is arranged on a side of the water inlet pipe close to the water pump, and the thermometer of the water outlet pipe is arranged between the water outlet pipe and the connection between the diversion pipe and the discharge conduit.

[0008] Optionally, a pressure sensor is provided inside the buffer water tank, and the outside of the buffer water tank is wrapped with an insulation board.

[0009] Optionally, the other end of the water pumping pipe is arranged inside the water intake well, and the end of the water outlet pipe is arranged inside the return well.

[0010] Optionally, a cyclone desander is provided in the middle of the water pumping pipe, and the water inlet of the water pump is connected to the water outlet of the cyclone desander through the water pumping pipe.

[0011] Optionally, the first stop valve, the second stop valve, and the third stop valve are all electrically controlled valves.

[0012] Optionally, a cooling coil wrapped around the outside of the internal heat-generating component is provided inside the heat pump unit body, and the cooling water inlet and the cooling water outlet are respectively connected to the two ends of the cooling coil.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The hot and cold water circulation device of the water source heat pump unit is provided with a buffer water tank and a circulating water pump. When the heat pump unit body is working, when the heat pump unit body pumps water from the water well through the pumping pump and discharges it from the water outlet after heat exchange, the temperature of the water inside the water pipe is measured by two temperature sensors arranged on the water inlet pipe and the water outlet pipe. When the temperature inside the water inlet pipe is higher than the temperature of the water outlet pipe, the first stop valve and the third stop valve are opened, and the second stop valve is closed, so that the water inlet conduit is connected with the diversion pipe, and the circulating water pump draws low-temperature water from the water outlet pipe into the buffer water tank. When the water inlet pipe is When the temperature inside the pipe is lower than the temperature of the outlet pipe, the second stop valve opens, and the first stop valve and the third stop valve close, so that the water inlet conduit is connected to the water inlet pipe through the diversion pipe, and the circulating water pump draws low-temperature water from the water inlet pipe into the buffer water tank. The low-temperature water drawn into the buffer water tank is sent to the cooling water inlet through the cooling water pump to cool the equipment inside the heat pump unit body, realizing the recycling of the water discharged after heat exchange, preventing a large amount of water resources from being wasted, which is beneficial to the environmental protection of the device, and facilitates the direct use of water sources, thereby improving the convenience of the device.

[0015] The hot and cold water circulation utilization device of the water source heat pump unit is provided with a first stop valve. When the temperature inside the water inlet pipe is lower than the temperature of the water outlet pipe, it indicates that the heat pump unit body is in cooling, while the temperature of the cooling water after heat exchange is higher. After closing the first stop valve, the high-temperature cooling water is discharged into the outlet pipe through the discharge conduit and flows back into the ground. When the temperature inside the water inlet pipe is higher than the temperature of the water outlet pipe, it indicates that the heat pump unit body is in heating, while the temperature of the cooling water after heat exchange is higher. When the first stop valve is opened, the cooling water with higher temperature is mixed with the water flow inside the water inlet pipe, and the heat generated by the heat pump unit body is reused, thereby improving the heat exchange efficiency of the heat pump unit body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a water source heat pump unit cold and hot water circulation device of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the cooling water inlet of a hot and cold water circulation device of a water source heat pump unit according to the present invention;

[0018] Figure 3 This is a schematic structural diagram of a water inlet pipe of a hot and cold water circulation device of a water source heat pump unit according to the present invention;

[0019] Figure 4 This is a structural schematic diagram of a water inlet conduit of a hot and cold water circulation device of a water source heat pump unit according to the present invention.

[0020] In the figure: 1. Base; 2. Heat pump unit body; 3. Water pump; 4. Water pump pipe; 5. Water inlet pipe; 6. Water outlet pipe; 7. Buffer water tank; 8. Cooling water inlet; 9. Cooling water outlet; 10. Connecting pipe; 11. Cooling water pump; 12. Water inlet pipe; 13. Circulating water pump; 14. Diverter pipe; 15. Circulating pipe; 16. Discharge pipe; 17. Temperature sensor; 18. First stop valve; 19. Second stop valve; 20. Third stop valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4The utility model provides a hot and cold water circulation device of a water source heat pump unit, comprising a base 1, a heat pump unit body 2 is fixedly installed on the top of the base 1, a water pump 3 located on one side of the heat pump unit body 2 is fixedly installed on the top of the base 1, a buffer water tank 7 is fixedly installed on the top of the heat pump unit body 2, a cooling water inlet 8 is provided on one side of the buffer water tank 7 on the top of the heat pump unit body 2, a cooling water outlet 9 is provided on the other side of the buffer water tank 7 on the top of the heat pump unit body 2, a cooling water inlet 8 on one side of the buffer water tank 7, a water inlet pipe 5 located above the water pump 3 is fixedly installed on one side of the heat pump unit body 2, a water outlet pipe 6 located in front of the water inlet pipe 5 is provided on one side of the heat pump unit body 2, and the other end of the water inlet pipe 5 is connected to the water outlet of the water pump 3 The mouth is fixedly installed, the water inlet of the water pump 3 is fixedly installed with a water suction pipe 4, the side of the buffer water tank 7 near the cooling water outlet 9 is fixedly installed with a water inlet conduit 12, the side of the buffer water tank 7 near the cooling water inlet 8 is fixedly installed with a connecting conduit 10, the middle of the connecting conduit 10 is provided with a cooling water pump 11, the other end of the connecting conduit 10 is fixedly installed with the cooling water inlet 8, the cooling water outlet 9 is fixedly installed with a circulation conduit 15, a circulating water pump 13 is provided at the connection between the water inlet conduit 12 and the buffer water tank 7, the other end of the water inlet conduit 12 is fixedly installed with a diverter pipe 14, one end of the diverter pipe 14 is fixedly installed with the middle of the water outlet pipe 6, the other end of the diverter pipe 14 is fixedly installed with the circulation conduit 15, and the other end of the circulation conduit 15 is fixed with the middle of the water inlet pipe 5 Installation, the circulation conduit 15 is fixedly installed with a discharge conduit 16 near the cooling water outlet 9, and the other end of the discharge conduit 16 is fixedly installed with the side of the outlet pipe 6 away from the heat pump unit body 2, the shunt pipe 14 is fixedly installed with a second stop valve 19 located on one side of the water inlet conduit 12, and the shunt pipe 14 is fixedly installed with a third stop valve 20 located on the other side of the water inlet conduit 12. The first stop valve 18, the second stop valve 19, and the third stop valve 20 are all electrically controlled valves. The circulation conduit 15 is fixedly installed with a first stop valve 18 located between the shunt pipe 14 and the discharge conduit 16. The water inlet pipe 5 and the water outlet pipe 6 are respectively provided with a temperature sensor 17. By arranging the buffer water tank 7 and the circulating water pump 13, when the heat pump unit body 2 is working, when the heat pump unit body 2 is The water pump 3 draws water from the water well and discharges it from the water outlet after heat exchange. The temperature of the water inside the water pipe is measured by two temperature sensors 17 arranged on the water inlet pipe 5 and the water outlet pipe 6. When the temperature inside the water inlet pipe 5 is higher than the temperature of the water outlet pipe 6, the first stop valve 18 and the third stop valve 20 are opened, and the second stop valve 19 is closed, so that the water inlet conduit 12 is connected with the shunt pipe 14, and the circulating water pump 13 draws low-temperature water from the water outlet pipe 6 into the buffer water tank 7. When the temperature inside the water inlet pipe 5 is lower than the temperature of the water outlet pipe 6, the second stop valve 19 is opened, the first stop valve 18 and the third stop valve 20 are closed, so that the water inlet conduit 12 is connected with the water inlet pipe 5 through the shunt pipe 14, and the circulating water pump 13 draws low-temperature water from the water inlet pipe 5 into the buffer water tank 7.The low-temperature water pumped into the buffer water tank 7 is sent to the cooling water inlet 8 through the cooling water pump 11 to cool the equipment inside the heat pump unit body 2. This achieves the recycling of the water discharged after heat exchange, prevents a large amount of water resources from being wasted, is beneficial to the environmental protection of the device, and facilitates the direct use of water resources, improving the convenience of the device.

[0023] The temperature sensor 17 of the water inlet pipe 5 is arranged on the side of the water inlet pipe 5 close to the water pump 3, and the thermometer of the water outlet pipe 6 is arranged between the connection between the water outlet pipe 6 and the diversion pipe 14 and the discharge conduit 16. A pressure sensor is arranged inside the buffer water tank 7, and the outside of the buffer water tank 7 is wrapped with an insulation board. The other end of the water pumping pipe 4 is arranged inside the water intake well, and the end of the water outlet pipe 6 is arranged inside the return well. A cyclone desander is arranged in the middle of the water pumping pipe 4. The water inlet of the water pump 3 is connected to the water outlet of the cyclone desander through the water pumping pipe 4. The interior of the heat pump unit body 2 is provided with a cooling coil wrapped around the outside of the internal heating component, and the cooling water inlet 8 and the cooling water outlet 9 are divided into two parts. It is connected to both ends of the cooling coil by setting a first stop valve 18. When the temperature inside the water inlet pipe 5 is lower than the temperature of the water outlet pipe 6, it indicates that the heat pump unit body 2 is cooling, and the temperature of the cooling water after heat exchange is higher. After closing the first stop valve 18, the high-temperature cooling water is discharged into the outlet pipe 6 through the discharge conduit 16 and flows back to the ground. When the temperature inside the water inlet pipe 5 is higher than the temperature of the water outlet pipe 6, it indicates that the heat pump unit body 2 is heating, and the temperature of the cooling water after heat exchange is higher. Open the first stop valve 18 to mix the higher temperature cooling water with the water flow inside the water inlet pipe 5, and reuse the heat generated by the heat pump unit body 2 to improve the heat exchange efficiency of the heat pump unit body 2.

[0024] Working principle:

[0025] When the heat pump unit body 2 is working, when the heat pump unit body 2 pumps water from the water well through the water pump 3 and discharges it from the water outlet after heat exchange, the temperature of the water inside the water pipe is measured by two temperature sensors 17 arranged on the water inlet pipe 5 and the water outlet pipe 6. When the temperature inside the water inlet pipe 5 is greater than the temperature of the water outlet pipe 6, the first stop valve 18 and the third stop valve 20 are opened, and the second stop valve 19 is closed, so that the water inlet conduit 12 is connected with the shunt pipe 14, and the circulating water pump 13 draws low-temperature water from the water outlet pipe 6 into the buffer water tank 7. When the temperature inside the water inlet pipe 5 is lower than the temperature of the water outlet pipe 6, the second stop valve 19 is opened, the first stop valve 18 and the third stop valve 20 are closed, so that the water inlet conduit 12 is connected with the water inlet pipe 5 through the shunt pipe 14, and the circulating water pump 13 draws low-temperature water from the water inlet pipe 5 into the buffer water tank 7. The low-temperature water drawn into the buffer water tank 7 passes through the cooling water pump 1 1 is sent into the cooling water inlet 8 to cool the equipment inside the heat pump unit body 2, so as to realize the recycling of the water discharged after heat exchange, avoid a large amount of waste of water resources, be beneficial to the environmental protection of the device, and facilitate the direct use of the water source, thereby improving the convenience of the device. When the temperature inside the water inlet pipe 5 is lower than the temperature of the water outlet pipe 6, it means that the heat pump unit body 2 is cooling, and the temperature of the cooling water after heat exchange is higher. After closing the first stop valve 18, the high-temperature cooling water is discharged into the water outlet pipe 6 through the discharge conduit 16 and flows back to the ground. When the temperature inside the water inlet pipe 5 is higher than the temperature of the water outlet pipe 6, it means that the heat pump unit body 2 is heating, and the temperature of the cooling water after heat exchange is higher. Open the first stop valve 18 and the higher-temperature cooling water is mixed with the water flow inside the water inlet pipe 5 to reuse the heat generated by the heat pump unit body 2, thereby improving the heat exchange efficiency of the heat pump unit body 2.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot and cold water circulation device for a water source heat pump unit, comprising a base (1), characterized in that: A heat pump unit body (2) is fixedly mounted on the top of the base (1), a water pump (3) located on one side of the heat pump unit body (2) is fixedly mounted on the top of the base (1), a buffer water tank (7) is fixedly mounted on the top of the heat pump unit body (2), a cooling water inlet (8) located on one side of the buffer water tank (7) is provided on the top of the heat pump unit body (2), a cooling water outlet (9) located on the other side of the buffer water tank (7) is provided on the top of the heat pump unit body (2), a cooling water inlet (8) located on one side of the buffer water tank (7), a cooling water outlet (9) located on the other side of the buffer water tank (7) is fixedly mounted on one side of the heat pump unit body (2), and a cooling water outlet (8) located on the other side of the buffer water tank (7) is fixedly mounted on the A water inlet pipe (5) is provided above the water pump (3), a water outlet pipe (6) is provided on one side of the heat pump unit body (2) and is located in front of the water inlet pipe (5), the other end of the water inlet pipe (5) is fixedly installed with the water outlet of the water pump (3), the water inlet of the water pump (3) is fixedly installed with a water pump pipe (4), a water inlet conduit (12) is fixedly installed on one side of the buffer water tank (7) near the cooling water outlet (9), a connecting conduit (10) is fixedly installed on one side of the buffer water tank (7) near the cooling water inlet (8), a cooling water pump (11) is provided in the middle of the connecting conduit (10), and the connecting conduit (12) is fixedly installed on the one side of the buffer water tank (7) near the cooling water inlet (8). 0) is fixedly mounted on the cooling water inlet (8), the cooling water outlet (9) is fixedly mounted with a circulation conduit (15), a circulation water pump (13) is provided at the connection between the water inlet conduit (12) and the buffer water tank (7), the other end of the water inlet conduit (12) is fixedly mounted with a diversion pipe (14), one end of the diversion pipe (14) is fixedly mounted on the middle of the water outlet pipe (6), the other end of the diversion pipe (14) is fixedly mounted on the circulation conduit (15), the other end of the circulation conduit (15) is fixedly mounted on the middle of the water inlet pipe (5), and the circulation conduit (15) is fixedly mounted with a cooling water pump (13) near the cooling water inlet pipe (7). The outlet (9) has a discharge conduit (16), the other end of the discharge conduit (16) is fixedly mounted on a side of the water outlet pipe (6) away from the heat pump unit body (2), the diverter pipe (14) is fixedly mounted with a second stop valve (19) located on one side of the water inlet conduit (12), the diverter pipe (14) is fixedly mounted with a third stop valve (20) located on the other side of the water inlet conduit (12), the circulation conduit (15) is fixedly mounted with a first stop valve (18) located between the diverter pipe (14) and the discharge conduit (16), and the water inlet pipe (5) and the water outlet pipe (6) are respectively provided with temperature sensors (17).

2. A hot and cold water circulation device for a water source heat pump unit according to claim 1, characterized in that: The temperature sensor (17) of the water inlet pipe (5) is arranged on a side of the water inlet pipe (5) close to the water pump (3), and the thermometer of the water outlet pipe (6) is arranged between the connection between the water outlet pipe (6) and the diverter pipe (14) and the discharge conduit (16).

3. The hot and cold water circulation device of a water source heat pump unit according to claim 1, characterized in that: A pressure sensor is provided inside the buffer water tank (7), and an insulation board is wrapped around the outside of the buffer water tank (7).

4. The hot and cold water circulation device of a water source heat pump unit according to claim 1, characterized in that: The other end of the water pumping pipe (4) is arranged inside the water intake well, and the end of the water outlet pipe (6) is arranged inside the water return well.

5. The hot and cold water circulation device of a water source heat pump unit according to claim 4, characterized in that: A cyclone desander is provided in the middle of the water pumping pipe (4), and the water inlet of the water pump (3) is connected to the water outlet of the cyclone desander through the water pumping pipe (4).

6. The hot and cold water circulation device of a water source heat pump unit according to claim 1, characterized in that: The first stop valve (18), the second stop valve (19), and the third stop valve (20) are all electrically controlled valves.

7. The hot and cold water circulation device of a water source heat pump unit according to claim 1, characterized in that: The heat pump unit body (2) is provided with a cooling coil wrapped around the outside of the internal heat-generating component, and the cooling water inlet (8) and the cooling water outlet (9) are respectively connected to the two ends of the cooling coil.

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