Multi-split heat pump device for cultivation

Abstract

The utility model discloses a multi-split heat pump device for cultivation, which comprises a heat pump main machine, the heat pump main machine comprises a condenser and an evaporator, the inlet end of the condenser is connected with a main machine circulating pump through a pipeline, the inlet end of the main machine circulating pump is connected with a buffer water tank through a pipeline, and the outlet end of the condenser is connected with a first transfer pool through a pipeline. The inlet end of the evaporator is connected with a water feeding pump through a pipeline, the water feeding pump is arranged on the inner side of the water outlet well, the outlet end of the evaporator is communicated with the water return well through a pipeline, the heat pump main machine can be a water source heat pump or a ground source heat pump, the outlet end of the first transfer pool is connected with a pressure-bearing tank through a pipeline, and an overflow opening is formed in the top of the pressure-bearing tank. The heat pump water temperature is reduced, energy is saved, heat loss is reduced through multi-transfer heating, the equipment stability is improved, and the operation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, specifically a multi-split heat pump device for aquaculture. Background Technology

[0002] The combustion of coal releases large amounts of harmful substances such as dust, sulfur dioxide, and carbon monoxide, which pollute the atmosphere and seriously pollute the air. Domestic livestock farms mostly use air source heat pump water heaters to provide heating in the livestock sheds.

[0003] Currently, the application of air source heat pumps in livestock heating has the following drawbacks: The air source heat pump circulation system design uses a main unit to heat a buffer water tank, and a secondary pump supplies water to the livestock shed. When the water tank is heated to 55℃, the unit's outlet water temperature is 60℃. As is well known, the energy efficiency of heat pumps deteriorates as the heating temperature increases (see Part 1: Heat Pump Units for Industrial or Commercial and Similar Uses). The heating capacity of the heat pump decreases as the outlet water temperature rises. At high outlet water temperatures, the compressor wear of the air source heat pump increases, and the stability deteriorates. The stability of the unit is put to a great test. At the same time, due to the influence of site and space factors, the length of the water supply route varies. A longer water supply distance will lead to greater heat loss during the transportation process. The traditional electric auxiliary heating method at the terminal can solve the above two problems, but the electric auxiliary heating method at the terminal consumes a lot of electricity and has serious energy consumption.

[0004] Therefore, the inventors sought to solve the problem of designing a device that reduces heat pump water temperature, saves energy, reduces heat loss through multiple heating transfers, increases equipment stability, and reduces operating costs. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-split heat pump device for aquaculture, which can realize energy saving of the heat pump host, increase equipment stability, reduce operating costs, and reduce aquaculture costs.

[0006] The technical solution adopted by this utility model device is as follows: a multi-split heat pump device for aquaculture, including a heat pump main unit, the heat pump main unit including a condenser and an evaporator, the inlet end of the condenser is connected to a main unit circulation pump through a pipeline, the inlet end of the main unit circulation pump is connected to a buffer water tank through a pipeline, the outlet end of the condenser is connected to a first transfer pool through a pipeline, the inlet end of the evaporator is connected to a water supply pump through a pipeline, the water supply pump is located inside the outlet well, the outlet end of the evaporator is connected to a return well through a pipeline, the outlet end of the first transfer pool is connected to a pressure tank through a pipeline, the top of the pressure tank is provided with an overflow port, the overflow port is connected to the buffer water tank through a pipeline, the outlet end of the pressure tank is connected to a water supply pump group through a pipeline, the water supply pump group is connected to a second transfer pool through a pipeline, the second transfer pool is connected to a floor heating system, an aquaculture shed is set outside the floor heating system, and the outlet end of the floor heating system is connected to the buffer water tank through a pipeline.

[0007] Furthermore, both the first and second transfer pools are equipped with an insulation layer on their inner sides.

[0008] Furthermore, an electric heating device is installed inside the second transfer pool, and the inlet and outlet of the second transfer pool are both located near the upper edge of the side walls on both sides.

[0009] Furthermore, the inlet of the underfloor heating system is located at the bottom of the second transfer pool.

[0010] Furthermore, a third transfer pool is provided in the middle of the underfloor heating pipes of the underfloor heating system.

[0011] Furthermore, the inner side of the third transfer pool is provided with an insulation layer and an electric heating device.

[0012] Furthermore, the underfloor heating system is equipped with a small circulating pump.

[0013] The beneficial effects of this utility model device are:

[0014] 1. This utility model adds a pressure tank to temporarily store high-temperature hot water, sets the terminal heat extraction point as a second transfer tank, and uses a first and second transfer tank that can be insulated and heated to correct the water temperature, thereby reducing the required heat pump outlet water temperature. In conjunction with the pressure tank and buffer tank as transfer points in the overall system, the supply water temperature is reduced. Multi-stage heating corrects the temperature difference, achieving the functions of reducing heat pump water temperature, saving energy, reducing heat loss through multi-transfer heating, increasing equipment stability, and reducing operating costs. Attached Figure Description

[0015] Figure 1 This is a structural view of the present invention.

[0016] Explanation of reference numerals in the attached diagram: 1-Heat pump main unit; 2-Return water well; 3-Outlet water well; 4-Filter device; 5-Main unit circulation pump; 6-First transfer pool; 7-Buffer water tank; 8-Pressure tank; 9-Water supply pump set; 10-Second transfer pool; 11-Aquaculture shed; 12-Underfloor heating system; 13-Third transfer pool; 14-Water supply pump. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0018] Example 1: See Figure 1 This is a structural view of the present invention, a multi-split heat pump device for aquaculture, including a heat pump main unit 1. The heat pump main unit 1 includes a condenser and an evaporator. The inlet end of the condenser is connected to a main unit circulation pump 5 via a pipeline. The inlet end of the main unit circulation pump 5 is connected to a buffer water tank 7 via a pipeline. The outlet end of the condenser is connected to a first transfer tank 6 via a pipeline. The inlet end of the evaporator is connected to a water supply pump 14 via a pipeline. The water supply pump 14 is located inside the outlet well 3. The outlet end of the evaporator is connected to a return water well 2 via a pipeline. The heat pump main unit 1 can be a water source heat pump or a ground source heat pump. The outlet end of the first transfer tank 6 is connected to a pressure tank 8 via a pipeline. The top of the pressure tank 8 is provided with an overflow port, which is connected to the buffer water tank 7 via a pipeline. The water overflowing from the pressure tank 8 enters the buffer water tank 7 through a pipeline. The outlet end of the pressure tank 8 is connected to a... A water supply pump unit 9 is connected, and the water supply pump unit 9 is connected to a second transfer pool 10 through a pipeline. The second transfer pool 10 is connected to a floor heating system 12. A breeding shed 11 is set outside the floor heating system 12. The outlet end of the floor heating system 12 is connected to a buffer water tank 7 through a pipeline. Both the first transfer pool 6 and the second transfer pool 10 are equipped with insulation layers on their inner sides. An electric heating device is set inside the second transfer pool 10. The inlet and outlet of the second transfer pool 10 are located on the side walls near the upper edge. The high-temperature water heated by the heat pump unit first enters the first transfer pool 6. Taking the first transfer pool 6 as the hypothetical end, the high-temperature water transportation path of the first section is shortened. Considering the temperature of the transportation environment and the management temperature, the temperature of the high-temperature water is corrected in the first transfer pool 6. Because the transportation distance is still short, the heating power is small enough to achieve the goal. Then the water enters the pressure tank 8.

[0019] The working principle of the second transfer pool 10 is similar to that of the first transfer pool 6. The difference is that the second transfer pool 10 is located near the breeding shed 11 as the terminal water supply source to supply water to the underfloor heating system 12. The inlet of the underfloor heating system 12 is located at the bottom of the second transfer pool 10, and the underfloor heating system 12 is equipped with a small circulation pump.

[0020] When the indoor temperature of the breeding shed 11 needs to be raised, the main circulating pump 5 draws water from the buffer water tank 7 into the heat pump main unit 1. After being heated by the heat pump main unit 1, the heated water is transported through the first transfer pool 6 and then enters the pressure tank 8. Part of it returns to the buffer water tank 7, and the other part is drawn by the water supply pump group 9 into the second transfer pool 10 for heating. After passing through the underfloor heating system 12, it enters the breeding shed 11 to release heat and then enters the buffer water tank 7 again for circulation.

[0021] When the indoor temperature of the breeding shed 11 is not required to be raised, the main circulating pump 5 draws water from the buffer water tank 7 into the heat pump main unit 1. After being heated by the heat pump main unit 1, the heated water is transported through the first transfer pool 6 without being heated and enters the pressure tank 8. All the water in the pressure tank 8 returns to the buffer water tank 7. When the set temperature of the water tank is reached, the entire circulation stops.

[0022] When a constant temperature is required inside the breeding shed 11, the water supply pump group 9 draws water from the pressure tank 8 and enters the second transfer pool 10. After passing through the underfloor heating system 12, the water enters the breeding shed 11 to release heat and then enters the buffer water tank 7. The water in the buffer water tank 7 enters the pressure tank 8 and is then drawn away by the water supply pump group 9, completing the repeated cycle.

[0023] The breeding shed 11 requires a constant temperature. When the water temperature in the buffer water tank 7 drops, the main circulation pump 5 starts to draw water from the buffer water tank 7 into the heat pump main unit 1. After being heated by the heat pump main unit 1, the heated water is transported through the first transfer pool 6 and then enters the pressure tank 8. Part of it returns to the buffer water tank 7, and the other part is drawn by the water supply pump group 9 into the second transfer pool 10 for heating. After passing through the underfloor heating system 12, it enters the breeding shed 11 to release heat and then enters the buffer water tank 7 again for circulation.

[0024] When the heat pump unit 1 has a low heating capacity and the constant temperature inside the breeding shed 11 is low, the water supply pump unit 9 draws water from the pressure tank 8 and enters the second transfer pool 10 for heating. The heated water then enters the breeding shed 11 through the underfloor heating system 12 to release heat before entering the buffer water tank 7. The water in the buffer water tank 7 then enters the pressure tank 8 for recirculation.

[0025] Example 2: If the ambient temperature is extremely low, the impact on the temperature inside the breeding shed 11 will increase. If the heat loss of the circulating water is relatively serious after being heated by the second transfer pool 10, a third transfer pool 13 can be further set in the middle of the underfloor heating pipe of the underfloor heating system 12. The inner side of the third transfer pool 13 is equipped with an insulation layer and an electric heating device. The volume of the third transfer pool 13 is small and is used for auxiliary heating.

[0026] This utility model adds a pressure tank 8 to temporarily store high-temperature hot water, sets the terminal heat extraction point as the second transfer tank 10, and uses the first transfer tank 6 and the second transfer tank 10, which can be insulated and heated, to correct the water temperature, thereby reducing the required heat pump outlet water temperature. In conjunction with the pressure tank 8 and the buffer water tank 7 as transfer points in the overall system, the supply water temperature is reduced, and the multi-stage heating corrects the temperature difference, achieving the functions of reducing heat pump water temperature, saving energy, reducing heat loss through multi-transfer heating, increasing equipment stability, and reducing operating costs.

Claims

1. A multi-split heat pump device for aquaculture, comprising a heat pump main unit (1), the heat pump main unit (1) comprising a condenser and an evaporator, characterized in that: The condenser inlet end is connected with a main circulating pump (5) through a pipeline, the inlet end of the main circulating pump (5) is connected with a buffer water tank (7) through a pipeline, the outlet end of the condenser is connected with a first transfer tank (6) through a pipeline, the inlet end of the evaporator is connected with a water pump (14) through a pipeline, the water pump (14) is arranged inside the water outlet well (3), the outlet end of the evaporator is connected with the water return well (2) through a pipeline, the outlet end of the first transfer tank (6) is connected with a pressure tank (8) through a pipeline, the top of the pressure tank (8) is provided with an overflow port, the overflow port is connected with the buffer water tank (7) through a pipeline, the outlet end of the pressure tank (8) is connected with a water supply pump group (9) through a pipeline, the water supply pump group (9) is connected with a second transfer tank (10) through a pipeline, the second transfer tank (10) is connected with a floor heating system (12), the floor heating system (12) is provided with a breeding shed (11) outside, and the outlet end of the floor heating system (12) is connected with the buffer water tank (7) through a pipeline.

2. The multi-split heat pump system for aquaculture according to claim 1, wherein: The first transfer tank (6) and the second transfer tank (10) are provided with heat preservation layers inside.

3. The multi-split heat pump system for aquaculture according to claim 2, wherein: The second transfer tank (10) is provided with an electric heating device inside, and the inlet and outlet of the second transfer tank (10) are arranged at the upper edges of the two side walls.

4. The multi-split heat pump system for aquaculture of claim 1, wherein: The inlet of the floor heating system (12) is arranged at the bottom of the second transfer tank (10).

5. The multi-split heat pump system for aquaculture of claim 1, wherein: The floor heating pipe of the floor heating system (12) is provided with a third transfer tank (13) in the middle.

6. A multi-split heat pump system for aquaculture according to claim 5, wherein: The third transfer tank (13) is provided with a heat preservation layer and an electric heating device inside.

7. The multi-split heat pump system for aquaculture of claim 5, wherein: The floor heating system (12) is provided with a small circulating pump.

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