Indoor fluorine pump air wall with machine head cabinet

Abstract

The utility model discloses a kind of indoor fluorine pump wind walls with head cabinet, including head cabinet and the wind wall module being fixed in its one side;The partition plate is fixed with in the head cabinet horizontally, and the interior space is divided into first installation area and second installation area, and the sidewall of head cabinet is fixed with electrical cabinet, and the bottom of head cabinet and partition plate are all integrated with gas compression module, the utility model places the larger component of wind area, such as electrical cabinet, frequency conversion compressor and oil separator, to the outside of air duct, reduces the wind area of air duct front, improves the energy efficiency of wind wall;The components occupying space are integrated into head cabinet, the thickness of wind wall can be further reduced to adapt to part extreme working environment, and instrument door is provided on head cabinet, air filter screen is provided in wind wall module, main components are in head cabinet and the outermost side of return air side, instrument door can be opened or air filter screen is removed to overhaul and replace, facilitate subsequent maintenance.

Description

Technical Field

[0001] This utility model relates to the field of indoor refrigerant pump air wall technology in computer room air conditioning, and particularly to an indoor refrigerant pump air wall with a fan head cabinet. Background Technology

[0002] The refrigerant pump-based air wall utilizes the air wall's ability to optimize airflow organization through horizontal air delivery, thus solving localized hotspot problems. When combined with a refrigerant pump, it recovers outdoor low-temperature cold sources, reduces compressor start-ups and shutdowns, and achieves efficient natural cooling during transitional seasons and winter, significantly reducing PUE.

[0003] The electrical box of the existing indoor refrigerant pump ventilation wall is designed on the front of the air duct. Due to the large area of ​​the electrical box, it inevitably reduces the return air area, resulting in a decrease in the energy efficiency of the ventilation wall. In order to place the compressor on the return air side, the existing refrigerant pump ventilation wall needs to provide installation space for the compressor and its piping components, which makes it impossible to further reduce the thickness of the ventilation wall, making it unsuitable for certain extreme situations where there are restrictions on the thickness of the entry.

[0004] To address the shortcomings of existing technologies, it is necessary to design an indoor refrigerant pump fan wall with a fan head cabinet. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an indoor fluorine pump fan wall with a fan head cabinet.

[0006] An indoor refrigerant pump air wall with a head unit cabinet includes a head unit cabinet and an air wall module fixed to one side thereon. A partition plate is horizontally fixed inside the head unit cabinet, dividing the internal space into a first installation area and a second installation area. An electrical box is fixed to one side wall of the head unit cabinet, and gas compression modules are integrated into the bottom of the head unit cabinet and the partition plate. The air wall module includes an air wall shell, and inside the air wall shell shell, an air filter, a heat exchanger, several fans and fan protective nets are arranged in sequence according to the air intake direction. A gap is set between the air filter and the heat exchanger, and a pipe and a frequency converter are installed at the gap.

[0007] Furthermore, the gas compression module includes a variable frequency compressor, a first exhaust pipe, and an oil separator. The pipeline includes a liquid inlet pipe, a second exhaust pipe, a suction pipe, and a third exhaust pipe. One end of the liquid inlet pipe is connected to the refrigerant inlet of the heat exchanger. The steam outlet of the heat exchanger is connected to one end of the suction pipe and the third exhaust pipe, respectively. The other end of the suction pipe is connected to the suction port of the variable frequency compressor. The exhaust port of the variable frequency compressor is connected to one end of the first exhaust pipe. The other end of the first exhaust pipe is connected to the gas inlet of the oil separator. The gas outlet of the oil separator and the other end of the third exhaust pipe are connected to one end of the second exhaust pipe, respectively. The lubricating oil outlet of the oil separator is connected to the variable frequency compressor through a return oil pipe.

[0008] Furthermore, the other end of the liquid inlet pipe is connected to the coolant outlet of the outdoor unit, and the other end of the second exhaust pipe is connected to the high-temperature and high-pressure gas inlet of the outdoor unit.

[0009] Furthermore, a dryer filter, an electronic expansion valve, and a distributor are sequentially installed on the pipeline between the liquid inlet pipe and the heat exchanger in accordance with the flow direction of the coolant.

[0010] Furthermore, a small fan is installed on the frequency converter.

[0011] Furthermore, the machine head cabinet is equipped with an instrument door.

[0012] Furthermore, the head unit and the air wall module are connected by parallel cabinet components, and the connection is sealed with a sealing plate.

[0013] Beneficial effects: This utility model places components with large wind-blocking areas, such as the electrical box, variable frequency compressor, and oil separator, outside the air duct, reducing the wind-blocking area on the front of the air duct and improving the energy efficiency of the air wall. Integrating space-consuming components into the head unit cabinet allows for a further reduction in the thickness of the air wall to adapt to some extreme working environments. Furthermore, the head unit cabinet is equipped with an instrument door, and the air wall module is equipped with an air filter. The main components are located on the outermost side of the head unit cabinet and the return air side, allowing the instrument door to be opened or the air filter to be removed for inspection and replacement, facilitating subsequent maintenance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the fan side of this utility model; Figure 2 This is a three-dimensional structural diagram of the air filter side of this utility model; Figure 3 This is a schematic diagram of the internal structure of the fan-side head unit of this utility model; Figure 4 This is a schematic diagram of the internal structure of the air filter side unit cabinet and part of the air wall shell of this utility model; In the picture: 1. Head unit cabinet; 2. Electrical box; 3. Variable frequency compressor; 4. First exhaust pipe; 5. Intake pipe; 6. Liquid inlet pipe; 7. Variable frequency drive; 8. Air filter; 9. Fan wall shell; 10. Heat exchanger; 11. Fan; 12. Fan protective net; 13. Oil separator; 14. Second exhaust pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please refer to Figures 1-4 This embodiment proposes an indoor refrigerant pump air wall with a head unit cabinet, including a head unit cabinet 1 and an air wall module fixed to one side thereon. The head unit cabinet 1 is provided with an instrument door. The head unit cabinet 1 and the air wall module are connected by a cabinet assembly and the connection is sealed with a sealing plate. A partition plate is fixed horizontally inside the head unit cabinet 1 to divide the internal space into a first installation area and a second installation area. An electrical box 2 is fixed to one side wall of the head unit cabinet 1. Gas compression modules are integrated at the bottom of the head unit cabinet 1 and on the partition plate. The air wall module includes an air wall shell 9. Inside the air wall shell 9, an air filter 8, a heat exchanger 10, several fans 11 and fan protective nets 12 are arranged in sequence according to the air intake direction. There is a gap between the air filter 8 and the heat exchanger 10. Pipes and frequency converters 7 are installed at the gaps. A small fan is installed on the frequency converter 7.

[0017] By placing components with large wind-blocking areas, such as the electrical box 2, the variable frequency compressor 3, and the oil separator 13, outside the air duct, the front wind-blocking area of ​​the air duct is reduced, improving the energy efficiency of the air wall. Integrating space-consuming components into the head unit 1 allows for a further reduction in the thickness of the air wall to accommodate some extreme working environments. Furthermore, an instrument door is provided on the head unit 1, and an air filter 8 is installed on the air wall module. Since the main components are located on the outermost sides of the head unit 1 and the return air side, the instrument door can be opened or the air filter 8 can be removed for inspection and replacement, facilitating subsequent maintenance.

[0018] In this embodiment, gas compression modules are integrated on both the bottom of the cabinet 1 and the partition plate. The gas compression modules on the bottom and the partition plate are connected in the same way, as follows: The gas compression module includes a variable frequency compressor 3, a first exhaust pipe 4, and an oil separator 13. The pipeline includes a liquid inlet pipe 6, a second exhaust pipe 14, a suction pipe 5, and a third exhaust pipe. One end of the liquid inlet pipe 6 is connected to the refrigerant inlet of the heat exchanger 10. A dryer filter, an electronic expansion valve, and a distributor are sequentially installed on the pipeline between the liquid inlet pipe 6 and the heat exchanger 10 according to the flow direction of the coolant. The vapor outlet of the heat exchanger 10 is connected to one end of the suction pipe 5 and the third exhaust pipe, respectively. The other end of the suction pipe 5 is connected to the suction port of the variable frequency compressor 3. The exhaust port of the variable frequency compressor 3 is connected to one end of the first exhaust pipe 4. The other end of the first exhaust pipe 4 is connected to the gas inlet of the oil separator 13. The gas outlet of the oil separator 13 and the other end of the third exhaust pipe are connected to one end of the second exhaust pipe 14, respectively. The lubricating oil outlet of the oil separator 13 is connected to the variable frequency compressor 3 through a return oil pipe. The other end of the liquid inlet pipe 6 is connected to the refrigerant outlet of the outdoor unit, and the other end of the second exhaust pipe 14 is connected to the high-temperature and high-pressure gas inlet of the outdoor unit.

[0019] In this utility model, the monitoring and control components such as manual valves, sight glasses, solenoid valves, sensors, and check valves installed on the pipeline are arranged in a conventional manner according to actual needs, and will not be described in detail here.

[0020] The working principle of this utility model is as follows: This utility model includes three working modes: refrigerant pump mode, compressor mode, and hybrid mode. The refrigerant pump mode is activated when the ambient temperature is below 8°C, the hybrid mode is activated when the ambient temperature is between 8°C and 15°C, and the compressor mode is activated when the ambient temperature is above 15°C.

[0021] In refrigerant pump mode, when the refrigerant pump fan wall is working, the medium-temperature, high-pressure refrigerant in the outdoor unit enters the unit through the liquid inlet pipe 6. After passing through the dryer filter to remove water and impurities, the medium-temperature, high-pressure refrigerant is then converted into low-temperature, low-pressure wet vapor by the electronic expansion valve. The low-temperature, low-pressure wet vapor is evenly distributed into the collecting pipe of the heat exchanger 10 through the distributor. At this time, the hot air filtered by the air filter 8 is blown into the fin gaps of the heat exchanger 10. The wet vapor in the collecting pipe evaporates into high-temperature, low-pressure gas, which carries away the heat from the hot air, thus achieving cooling. High-temperature and high-pressure gas flows through intake pipe 5 to the third exhaust pipe, and is discharged into the outdoor unit through the second exhaust pipe 14. After being processed by the refrigerant pump system in the outdoor unit, it becomes medium-temperature and high-pressure coolant and enters the unit through inlet pipe 6 to complete the circulation.

[0022] In hybrid mode, when the refrigerant pump is working, the medium-temperature, high-pressure refrigerant in the outdoor unit enters the unit through the inlet pipe 6. After passing through the dryer filter to remove water and impurities, the electronic expansion valve converts the medium-temperature, high-pressure refrigerant into low-temperature, low-pressure wet vapor. The low-temperature, low-pressure wet vapor is evenly distributed into the collecting pipe of the heat exchanger 10 through the distributor. At this time, the hot air filtered by the air filter 8 is blown into the fin gaps of the heat exchanger 10. The wet vapor in the collecting pipe evaporates into high-temperature, low-pressure gas, which carries away the heat from the hot air, thus achieving cooling. Part of the high-temperature, high-pressure gas flows through the suction pipe 5 to the third exhaust pipe, and is discharged into the outdoor unit through the second exhaust pipe 14; another part of the high-temperature, high-pressure gas enters the suction port of the variable frequency compressor 3 through the suction pipe 5, and is discharged as high-temperature, high-pressure gas after being compressed by the variable frequency compressor 3. The gas enters the oil separator 13 through the first exhaust pipe 4, and the lubricating oil carried in it is separated and returned to the variable frequency compressor 3 through the oil return pipe. The processed high-temperature, high-pressure gas is discharged into the outdoor unit through the second exhaust pipe 14. After being processed by the refrigerant pump system in the outdoor unit, it becomes medium-temperature, high-pressure coolant and enters the unit through the liquid inlet pipe 6 to complete the circulation.

[0023] In compressor mode, when the refrigerant pump fan wall is working, the medium-temperature, high-pressure refrigerant in the outdoor unit enters the unit through the inlet pipe 6. After passing through the dryer filter to remove water and impurities, the medium-temperature, high-pressure refrigerant is then converted into low-temperature, low-pressure wet vapor by the electronic expansion valve. The low-temperature, low-pressure wet vapor is evenly distributed into the collecting pipe of the heat exchanger 10 through the distributor. At this time, the hot air filtered by the air filter 8 is blown into the fin gaps of the heat exchanger 10, and the wet vapor in the collecting pipe evaporates into high-temperature, low-pressure gas, which carries away the heat from the hot air. The unit can then blow out cold air to achieve a cooling effect.

[0024] High-temperature and high-pressure gas enters the suction port of the variable frequency compressor 3 through the suction pipe 5. After being compressed by the variable frequency compressor 3, it becomes high-temperature and high-pressure gas and is discharged. The gas enters the oil separator 13 through the first exhaust pipe 4, and the lubricating oil carried in it is separated and returned to the variable frequency compressor 3 through the return oil pipe. The processed high-temperature and high-pressure gas is discharged into the outdoor unit through the second exhaust pipe 14. After being processed by the refrigerant pump system in the outdoor unit, it becomes medium-temperature and high-pressure coolant and enters the unit through the liquid inlet pipe 6 to complete the circulation.

[0025] This utility model's refrigerant pump system includes a one-way valve, a condenser, a manual valve, a refrigerant pump inlet pressure sensor, a refrigerant pump, and a manual valve arranged sequentially through a refrigerant pipeline according to the high-temperature, high-pressure gas flow direction. The high-temperature, high-pressure gas flows in through the one-way valve, and the medium-temperature, high-pressure refrigerant flows out of the manual valve outlet and enters the unit through the liquid inlet pipe 6. A liquid receiver is connected in parallel on the pipeline between the refrigerant pump and the refrigerant pump inlet pressure sensor, and a one-way valve is connected in parallel on the refrigerant pump. The connection method of the refrigerant pump system in the outdoor unit of this invention adopts the existing connection method and has no special connection, which will not be described in detail here.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An indoor refrigerant pump ventilation wall with a unit cabinet, characterized in that: It includes a head unit cabinet (1) and a wind wall module fixed on one side thereon; a partition plate is fixed horizontally inside the head unit cabinet (1) to divide the internal space into a first installation area and a second installation area; an electrical box (2) is fixed on one side wall of the head unit cabinet (1); and gas compression modules are integrated on the bottom of the head unit cabinet (1) and the partition plate. The air wall module includes an air wall shell (9). Inside the air wall shell (9), an air filter (8), a heat exchanger (10), several fans (11) and a fan protection net (12) are arranged in sequence according to the air intake direction. There is a gap between the air filter (8) and the heat exchanger (10), and a pipe and a frequency converter (7) are arranged at the gap.

2. The indoor refrigerant pump ventilation wall with a head unit as described in claim 1, characterized in that: The gas compression module includes a variable frequency compressor (3), a first exhaust pipe (4) and an oil separator (13), and the pipeline includes an inlet pipe (6), a second exhaust pipe (14), an intake pipe (5) and a third exhaust pipe; One end of the liquid inlet pipe (6) is connected to the refrigerant inlet of the heat exchanger (10). The steam outlet of the heat exchanger (10) is connected to one end of the suction pipe (5) and the third exhaust pipe respectively. The other end of the suction pipe (5) is connected to the suction port of the variable frequency compressor (3). The exhaust port of the variable frequency compressor (3) is connected to one end of the first exhaust pipe (4). The other end of the first exhaust pipe (4) is connected to the gas inlet of the oil separator (13). The gas outlet of the oil separator (13) and the other end of the third exhaust pipe are connected to one end of the second exhaust pipe (14) respectively. The lubricating oil outlet of the oil separator (13) is connected to the variable frequency compressor (3) through the oil return pipe.

3. The indoor refrigerant pump ventilation wall with a head unit as described in claim 2, characterized in that: The other end of the liquid inlet pipe (6) is connected to the coolant outlet of the outdoor unit, and the other end of the second exhaust pipe (14) is connected to the high-temperature and high-pressure gas inlet of the outdoor unit.

4. The indoor refrigerant pump ventilation wall with a head unit as described in claim 2, characterized in that: A dryer filter, an electronic expansion valve, and a distributor are sequentially installed on the pipeline between the liquid inlet pipe (6) and the heat exchanger (10) in the direction of coolant flow.

5. The indoor refrigerant pump ventilation wall with a head unit as described in claim 1, characterized in that: A small fan is installed on the frequency converter (7).

6. The indoor refrigerant pump ventilation wall with a head unit as described in claim 1, characterized in that: The machine head cabinet (1) is equipped with an instrument door.

7. The indoor refrigerant pump ventilation wall with a head unit as described in claim 1, characterized in that: The head unit (1) and the air wall module are connected by a parallel cabinet and the connection is sealed with a sealing plate.

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