Seedbed type water source heat pump all-in-one machine

Abstract

The utility model belongs to the technical field of water source heat pump units, and particularly relates to a seedbed type water source heat pump all-in-one machine which comprises a main box body, an air outlet box body is connected to one side, close to the bottom, of the main box body, the main box body is communicated with the air outlet box body, and the height of the air outlet box body is smaller than that of the main box body. A compressor, a heat exchanger, an electronic expansion valve, a gas-liquid separator, a four-way valve and a refrigerant liquid storage tank are installed in the main box body, a condenser and a fan are installed in the air outlet box body, an air outlet of the fan is formed in the side wall of the air outlet box body, and air inlets are formed in the side walls of the main box body and the air outlet box body. The seedbed type water source heat pump all-in-one machine is installed at the bottom of a seedbed, hot air is heated from the bottom of the seedbed, then the hot air expands and rises, the overall indoor temperature is increased, and the suitable growth temperature can be kept. The overall heat exchange efficiency can be improved, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of water source heat pump units, and in particular relates to a seedling bed type water source heat pump integrated machine. Background Art

[0002] With the increasing level of modern agricultural planting, the refined management of the planting industry is becoming more and more precise, so the temperature requirements for crop planting are also higher. Now most crops are heated by water source heat pumps.

[0003] For example, a utility model patent with publication number CN213931534U proposes a water source heat pump integrated machine, including a cabinet, a horizontal support plate is fixed on the inner wall of the cabinet, a fin heat exchanger is installed on the inner wall of the cabinet located on the upper side of the support plate, a mounting frame is fixed on the top wall of the support plate, a fan is installed on the top of the mounting frame, and a water heat exchanger, a gas-liquid separator and a compressor are installed on the inner bottom wall of the cabinet. The water source heat pump integrated machine in this patented technical solution has a wide cooling and heating range, a small size, is easy to transfer, and has high practicality.

[0004] However, the existing water source heat pump integrated machine usually installs the condenser on the upper part of the cabinet, with the air inlet arranged on the lower side wall of the cabinet and the air outlet arranged on the upper side wall of the cabinet. Therefore, the height of the hot air outlet is relatively high. This method can only heat the crops from top to bottom, resulting in a temperature difference between the top and bottom of the crops, which is not conducive to maintaining the most suitable growth temperature for the crops. Utility Model Content

[0005] The utility model aims to provide a seedbed type water source heat pump integrated machine to solve the problems raised in the above background technology.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0007] A seedling bed type water source heat pump integrated machine comprises a main box body, one side of the main box body is connected to an air outlet box body near the bottom, the main box body is communicated with the air outlet box body, the height of the air outlet box body is less than the height of the main box body, and the air outlet box body is used to extend into the bottom of the seedling bed to discharge air, a compressor, a heat exchanger, an electronic expansion valve, an air-liquid separator, a four-way valve and a refrigerant liquid storage tank are installed in the main box body, a condenser and a fan are installed in the air outlet box body, an air outlet opening of the fan is on the side wall of the air outlet box body, the air outlet is arranged away from the main box body, an air inlet is arranged on the side wall of the main box body near the bottom, the side walls of the air outlet box body are provided with air inlets on both sides of the air outlet, and the air inlets arranged on the side walls of the air outlet box body are arranged opposite to the condenser;

[0008] The condenser is provided with a plurality of groups of heat exchange tubes arranged vertically, the heat exchange tubes are arranged horizontally in a U shape, the fan is located in the middle position surrounded by the condenser, the U-shaped opening direction of the condenser is arranged toward the air outlet of the fan, and the heat exchange tubes are fixed in the air outlet box through end plates.

[0009] As a further improvement, each group of the heat exchange tubes includes a first copper tube, a second copper tube, a third copper tube, a fourth copper tube, a fifth copper tube and a sixth copper tube connected end to end in sequence, the first copper tube and the second copper tube are located on the inner side and the first copper tube is located on the upper layer, the third copper tube and the fourth copper tube are located in the middle and the fourth copper tube is located on the upper layer, the fifth copper tube and the sixth copper tube are located on the outer side and the fifth copper tube is located on the upper layer.

[0010] As a further improvement, one end of each of the first copper tubes is connected to an air intake manifold, and the air intake manifold is connected to the compressor via a four-way valve, and one end of each of the sixth copper tubes is connected to an air outlet manifold.

[0011] As a further improvement, the compressor, heat exchanger, electronic expansion valve and gas-liquid separator are all fixedly arranged at the bottom of the main box, the four-way valve is connected to the compressor, condenser, electronic expansion valve, heat exchanger and gas-liquid separator respectively, the outlet of the compressor is connected to the inlet of the condenser through the four-way valve, the outlet of the heat exchanger is connected to the inlet of the gas-liquid separator through the four-way valve, and the outlet of the gas-liquid separator is connected to the inlet of the compressor;

[0012] The outlet of the condenser is connected to an electronic expansion valve through a pipeline, the electronic expansion valve is connected to a heat exchanger, and the outlet of the gas-liquid separator is connected to an inlet of a compressor through a pipeline.

[0013] As a further improvement, a refrigerant liquid storage tank is provided in the main box body, and the refrigerant liquid storage tank is respectively connected to the condenser and the electronic expansion valve through pipelines, and filters are respectively connected to both ends of the electronic expansion valve.

[0014] As a further improvement, an electric control box is provided on the upper portion of the main box body.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model provides a seedling bed type water source heat pump integrated machine with a main box body and an air outlet box body connected to each other. The air outlet box body is placed at the bottom of the seedling bed. Cold air enters the interior of the main box body and the air outlet box body through multiple air inlets, and is blown out from the air outlet after heat exchange in the condenser, so that the hot air is heated from the bottom of the seedling bed, and then the hot air expands and rises, thereby increasing the overall temperature of the room, which is beneficial to maintaining a suitable growth temperature for the crops planted. At the same time, the installation position of the compressor can reduce the high temperature of the machine body generated when the compressor is running.

[0017] By configuring the condenser to have multiple groups of U-shaped heat exchange tubes and to have multiple air inlets, the overall heat exchange efficiency can be improved and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure of the compressor, heat exchanger, electronic expansion valve, gas-liquid separator and four-way valve;

[0022] Figure 5 This is a schematic diagram of the internal structure of the utility model from another angle;

[0023] Figure 6 It is a schematic diagram of the structure of the condenser;

[0024] Figure 7 yes Figure 6 A magnified view of the structure of part A;

[0025] Figure 8 yes Figure 6 A magnified view of the structure of part B;

[0026] Among them: 1-main box, 2-air outlet box, 3-heat exchange tube, 4-air inlet, 5-air outlet, 6-fan, 7-condenser, 8-compressor, 9-heat exchanger, 10-electronic expansion valve, 11-gas-liquid separator, 12-four-way valve, 13-refrigerant storage tank, 14-filter, 15-end plate, 16-first copper tube, 17-second copper tube, 18-third copper tube, 19-fourth copper tube, 20-fifth copper tube, 21-sixth copper tube, 22-inlet main pipe, 23-outlet main pipe. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the specific implementation methods and the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] like Figure 1-5 As shown, a seedbed type water source heat pump integrated machine includes a main box 1, one side of the main box 1 is connected to an air outlet box 2 near the bottom, the main box 1 is connected to the air outlet box 2, the height of the air outlet box 2 is less than the height of the main box 1, and the air outlet box 2 is used to extend into the bottom of the seedbed to discharge air. Since the height of the air outlet box 2 is relatively low, it can extend into the bottom of the seedbed to blow air to the bottom of the seedbed. A compressor 8, a heat exchanger 9, an electronic expansion valve 10, a gas-liquid separator 11, a four-way valve 12 and a refrigerant liquid storage tank 13 are installed in the main box 1, and a condenser 7 and a fan 6 are installed in the air outlet box 2. The air outlet 5 of the fan 6 opens on the side wall of the air outlet box 2, and the air outlet 5 is arranged away from the main box 1. An air inlet 4 is arranged on the side wall of the main box 1 near the bottom, and an air inlet 4 is arranged on the side wall of the air outlet box 2 located on both sides of the air outlet 5. The air inlet 4 arranged on the side wall of the air outlet box 2 is arranged opposite to the condenser 7.

[0031] In this embodiment, the fan 6 adopts a volute type double air inlet fan, and the condenser 7 adopts a high-density water-immersed aluminum foil condenser. During installation, the air outlet box 2 is placed at the bottom of the seedling bed. When the external air enters the main box 1 and the air outlet box 2 through the air inlet 4, it passes through the condenser 7 for heat exchange, and then the fan 6 blows the heated air out from the air outlet 5, blowing the hot air to the bottom of the seedling bed to promote plant growth.

[0032] Specifically, the condenser 7 is provided with a plurality of groups of heat exchange tubes 3 arranged vertically, the heat exchange tubes 3 are arranged horizontally in a U shape, the fan 6 is located in the middle position surrounded by the condenser 7, the U-shaped opening direction of the condenser 7 is arranged toward the air outlet 5 of the fan 6, the heat exchange tubes 3 are fixed in the air outlet box 2 through the end plate 15, and the U-shaped condenser 7 surrounds the fan 6 on three sides, so that the heat exchange area when the cold air passes through the condenser 7 and flows to the fan 6 is increased, and the space utilization rate is high.

[0033] Embodiment 2

[0034] like Figure 4-8As shown, in this embodiment, based on the first embodiment, each group of heat exchange tubes includes a first copper tube 16, a second copper tube 17, a third copper tube 18, a fourth copper tube 19, a fifth copper tube 20 and a sixth copper tube 21 which are connected end to end in sequence, the first copper tube 16 and the second copper tube 17 are located on the inner side and the first copper tube 16 is located on the upper layer, the third copper tube 18 and the fourth copper tube 19 are located in the middle and the fourth copper tube 19 is located on the upper layer, the fifth copper tube 20 and the sixth copper tube 21 are located on the outer side and the fifth copper tube 20 is located on the upper layer.

[0035] One end of the first copper tube 16 is connected to the air intake main pipe 22 , and the air intake main pipe 22 is connected to the compressor 8 through the four-way valve 12 . One end of the sixth copper tube 21 is connected to the air outlet main pipe 23 , and the air outlet main pipe 23 is connected to the refrigerant storage tank 13 .

[0036] Specifically, the compressor 8, the heat exchanger 9, the electronic expansion valve 10 and the gas-liquid separator 11 are all fixedly arranged at the bottom of the main box body 1, and the four-way valve 12 respectively connects the compressor 8, the condenser 7, the electronic expansion valve 10, the heat exchanger 9 and the gas-liquid separator 11. The outlet of the compressor 8 is connected to the inlet of the condenser 7 through the four-way valve 12, the outlet of the heat exchanger 9 is connected to the inlet of the gas-liquid separator 11 through the four-way valve 12, and the outlet of the gas-liquid separator 11 is connected to the inlet of the compressor 8.

[0037] The outlet of the condenser 7 is connected to the electronic expansion valve 10 through a pipeline, the electronic expansion valve 10 is connected to the heat exchanger 9, and the outlet of the gas-liquid separator 11 is connected to the inlet of the compressor 8 through a pipeline.

[0038] When in use, the refrigerant is compressed by the compressor 8 to increase its pressure and temperature and drive the refrigerant to circulate. The refrigerant enters the condenser 7 from the compressor 8 through the four-way valve 12, exchanges heat with the air at the condenser 7, and the refrigerant that has completed the heat exchange enters the heat exchanger 9 through the electronic expansion valve 10. The refrigerant exchanges heat and increases its temperature at the heat exchanger 9, then enters the gas-liquid separator 11 from the heat exchanger 9 through the four-way valve 12, and finally flows back to the compressor 8 from the gas-liquid separator 11 to complete a cycle.

[0039] Specifically, a refrigerant storage tank 13 is provided in the main box 1, and the refrigerant storage tank 13 is connected to the condenser 7 and the electronic expansion valve 10 through pipelines. The refrigerant medium is stored in the refrigerant storage tank 13, which can be used to balance the overall stability of the system and ensure the stable and safe operation of the equipment. Filters 14 are connected to both ends of the electronic expansion valve 10 to filter impurities in the refrigerant medium to prevent clogging of the electronic expansion valve 10 and increase the stability and service life of the equipment. An electric control box is provided on the upper part of the main box 1 to control the operation of the water source heat pump integrated machine.

[0040] In this embodiment, the refrigerant enters the first copper tube 16 of each heat exchange tube 3 through the air inlet manifold 22, then flows through the second copper tube 17, the third copper tube 18, the fourth copper tube 19, the fifth copper tube 20 and the sixth copper tube 21 in sequence, and finally flows into the air outlet manifold 23 from the sixth copper tube 21, completing the flow of the refrigerant at the condenser 7. By providing a plurality of heat exchange tubes 3 and providing three rows of copper tubes in each heat exchange tube 3, the heat exchange efficiency can be increased.

[0041] When the utility model is used: the seedbed-type water source heat pump integrated machine is installed at the bottom of the seedbed, without occupying the position of the seedbed, increasing the use area of ​​the seedbed and making rational use of space. By setting a main box body 1 and an air outlet box body 2 that are connected, the air outlet box body 2 is placed at the bottom of the seedbed, and the cold air enters the main box body 1 and the air outlet box body 2 through the air inlet 4, and after heat exchange through the condenser 7, it is blown out from the air outlet 5, so that the hot air is heated from the bottom of the seedbed, and then the hot air expands and rises, raising the overall temperature of the room, which is conducive to maintaining a suitable growth temperature for the crops planted. At the same time, the installation position of the compressor 8 can reduce the high temperature of the body generated when the compressor 8 is running. By setting the condenser 7 as a plurality of groups of U-shaped heat exchange tubes and coordinating with a plurality of air inlets 4, the overall heat exchange efficiency can be improved, and it is easy to use.

[0042] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A seedbed type water source heat pump integrated machine, comprising a main box, characterized in that: An air outlet box is connected to one side of the main box body near the bottom, the main box body is in communication with the air outlet box body, the height of the air outlet box body is less than the height of the main box body, the air outlet box body is used to extend into the bottom of the seedling bed to discharge air, a compressor, a heat exchanger, an electronic expansion valve, an air-liquid separator, a four-way valve and a refrigerant storage tank are installed in the main box body, a condenser and a fan are installed in the air outlet box body, an air outlet of the fan opens on the side wall of the air outlet box body, the air outlet is arranged away from the main box body, an air inlet is arranged on the side wall of the main box body near the bottom, and the air outlet box body is located on the side walls on both sides of the air outlet; The condenser is provided with a plurality of groups of heat exchange tubes arranged vertically, the heat exchange tubes are arranged horizontally in a U shape, the fan is located in the middle position surrounded by the condenser, the U-shaped opening direction of the condenser is arranged toward the air outlet of the fan, and the heat exchange tubes are fixed in the air outlet box through end plates.

2. The seedbed type water source heat pump integrated machine according to claim 1, characterized in that: Each group of the heat exchange tubes includes a first copper tube, a second copper tube, a third copper tube, a fourth copper tube, a fifth copper tube and a sixth copper tube connected in sequence end to end, the first copper tube and the second copper tube are located on the inner side and the first copper tube is located on the upper layer, the third copper tube and the fourth copper tube are located in the middle and the fourth copper tube is located on the upper layer, the fifth copper tube and the sixth copper tube are located on the outer side and the fifth copper tube is located on the upper layer.

3. The seedling bed type water source heat pump integrated machine according to claim 2, characterized in that: One end of each of the first copper tubes is connected to an air intake main pipe, and the air intake main pipe is connected to the compressor via a four-way valve. One end of each of the sixth copper tubes is connected to an air outlet main pipe.

4. The seedling bed type water source heat pump integrated machine according to any one of claims 1 to 3, characterized in that: The compressor, heat exchanger, electronic expansion valve and gas-liquid separator are all fixedly arranged at the bottom of the main box, the four-way valve is connected to the compressor, condenser, electronic expansion valve, heat exchanger and gas-liquid separator respectively, the outlet of the compressor is connected to the inlet of the condenser through the four-way valve, the outlet of the heat exchanger is connected to the inlet of the gas-liquid separator through the four-way valve, and the outlet of the gas-liquid separator is connected to the inlet of the compressor; The outlet of the condenser is connected to an electronic expansion valve through a pipeline, the electronic expansion valve is connected to a heat exchanger, and the outlet of the gas-liquid separator is connected to an inlet of a compressor through a pipeline.

5. The seedbed type water source heat pump integrated machine according to claim 4, characterized in that: A refrigerant liquid storage tank is provided in the main box body, and the refrigerant liquid storage tank is respectively connected to a condenser and an electronic expansion valve through pipelines, and filters are respectively connected to both ends of the electronic expansion valve.

6. The seedbed type water source heat pump integrated machine according to claim 1, characterized in that: An electric control box is arranged on the upper part of the main box body.

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