Multi-throttling assembly based on multi-connected air conditioning system

Abstract

The utility model relates to the technical field of air conditioners, and provides a multi-throttling assembly based on a multi-connected air-conditioning system, which comprises a compressor, one side of the compressor is connected with a gas-liquid separator through a pipeline, the output end of the compressor is provided with a four-way valve, the output end of the four-way valve is connected with an outdoor heat exchanger through a pipeline, and the outdoor heat exchanger is connected with an indoor heat exchanger through a pipeline. And one side of the outdoor side heat exchanger is connected with a multi-throttling assembly box through a pipeline. Low-temperature and low-pressure gas discharged from the gas-liquid separator is absorbed by the compressor and converted into high-temperature and high-pressure gas, the gas is connected with the four-way valve through a pipeline, the high-temperature and high-pressure gas is discharged to the outdoor heat exchanger through the four-way valve, and the gas is changed into a gas-liquid mixture in a phase change process. Throttling is carried out through the mode of the double outdoor main electronic expansion valves and the capillary tubes, low-temperature and low-pressure gas enters the indoor heat exchanger for heat exchange, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a multi-throttling component based on a multi-split air conditioning system. Background Technology

[0002] The throttling component of an air conditioning system is a key component used to control the refrigerant flow and reduce the refrigerant pressure in the air conditioning refrigeration cycle. By adjusting the size of the throttling orifice, the refrigerant is throttled and its pressure reduced to meet the operating requirements of the air conditioning system under different operating conditions, and to ensure the cooling or heating effect and operational stability of the system.

[0003] Existing multi-throttling components based on multi-split air conditioning systems often achieve throttling through a single capillary tube and expansion valve, resulting in poor throttling effect. Furthermore, the refrigerant condensation process lacks subcooling to prevent liquid flashing, thereby reducing the air conditioning's cooling and heating capabilities and affecting operating efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a multi-throttling component based on a multi-split air conditioning system to solve the problem of poor operating efficiency of existing air conditioning system throttling components.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-throttling component based on a multi-split air conditioning system, including a compressor;

[0006] One side of the compressor is connected to a gas-liquid separator via a pipe. A four-way valve is installed at the output end of the compressor. The output end of the four-way valve is connected to an outdoor heat exchanger via a pipe. One side of the outdoor heat exchanger is connected to a multi-throttling component box via a pipe. The input end of the four-way valve is connected to an indoor heat exchanger via a pipe.

[0007] The multi-throttling component box is equipped with a filter, and the output end of the filter is equipped with an outdoor main electronic expansion valve. The output end of the outdoor main electronic expansion valve is equipped with a capillary tube.

[0008] Preferably, the number of outdoor main electronic expansion valves is set to two, and the two outdoor main electronic expansion valves are installed in parallel at the input end of the capillary tube.

[0009] Preferably, the output end of the multi-throttling component box is fixedly connected to the indoor heat exchanger via a pipe, and one side of the gas-liquid separator is fixedly connected to the indoor heat exchanger via a pipe.

[0010] Preferably, the filter has a filter element installed inside, a sealing groove inside, a docking groove inside, a movable rod movably connected to the outer wall of the filter, a nut installed on the outer wall of the movable rod, a cover plate installed on one side of the filter, a sealing ring installed on the outer wall of the cover plate, a docking block fixedly connected to one side of the cover plate, and an clearance groove inside the cover plate.

[0011] Preferably, the filter is engaged with the filter element, and the filter and the movable rod form a rotating structure.

[0012] Preferably, the movable rod is T-shaped, the outer wall of the movable rod is threaded, and the movable rod is threadedly connected to the nut.

[0013] Preferably, the docking block is engaged with the filter via a docking groove, and the sealing ring is engaged with the filter via a sealing groove.

[0014] The present invention provides a multi-throttling component based on a multi-split air conditioning system, the advantages of which are:

[0015] The system consists of a compressor, gas-liquid separator, four-way valve, outdoor heat exchanger, outdoor main electronic expansion valve, capillary tube, indoor heat exchanger, and multiple throttling components. The compressor absorbs low-temperature, low-pressure gas from the gas-liquid separator and converts it into high-temperature, high-pressure gas. The gas is then connected to the four-way valve via pipeline. The high-temperature, high-pressure gas is discharged to the outdoor heat exchanger through the four-way valve. The gas undergoes a phase change process, becoming a gas-liquid mixture. Throttling is then performed through the dual outdoor main electronic expansion valves and capillary tubes, turning the gas into low-temperature, low-pressure gas that enters the indoor heat exchanger for heat exchange, thus improving operating efficiency.

[0016] Furthermore, the high-temperature and high-pressure gas-liquid mixture exiting the condenser needs to be cooled and depressurized into a fully liquid state through a multi-throttling component box. There are two outdoor main electronic expansion valves and capillary tubes to throttle and control the liquid temperature and pressure, maintain the refrigerant condensation process with subcooling to prevent liquid flashing, thereby reducing the condensation temperature, increasing the evaporation temperature, and improving the air conditioning's cooling and heating capabilities.

[0017] The filter consists of a filter element, a sealing groove, a docking groove, a movable rod, a nut, a cover plate, a sealing ring, a docking block, and a clearance groove. By rotating the nut, which is threadedly connected to the movable rod, the nut can be disassembled. Pulling the movable rod outwards allows it to rotate along the filter and move out of the clearance groove. Pulling the cover plate outwards separates the docking block from the docking groove, allowing the cover plate to be disassembled. This, in turn, allows the filter element to be disassembled and cleaned, thereby improving the filter's filtration efficiency.

[0018] Furthermore, after cleaning, the filter element can be installed into the filter. Similarly, the connecting block can be inserted into the connecting groove to assemble the cover plate with the filter.

[0019] Furthermore, the combined effect of the sealing groove and the sealing ring can improve the sealing performance of the filter and the cover plate assembly, thereby further enhancing the filtration effect of the filter. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a perspective view of the filter of this utility model;

[0022] Figure 3 This is a perspective view of the filter element of this utility model;

[0023] Figure 4 This is an exploded view of the filter structure of this utility model;

[0024] Figure 5 This is a perspective view of the cover plate of this utility model.

[0025] The following are the labels in the attached diagram: 1. Compressor; 2. Gas-liquid separator; 3. Four-way valve; 4. Outdoor heat exchanger; 5. Filter; 6. Outdoor main electronic expansion valve; 7. Capillary tube; 8. Indoor heat exchanger; 9. Multi-throttling component box; 10. Filter element; 11. Sealing groove; 12. Connecting groove; 13. Movable rod; 14. Nut; 15. Cover plate; 16. Sealing ring; 17. Connecting block; 18. Clearance groove. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 The present invention provides a multi-throttling component based on a multi-split air conditioning system, including a compressor 1.

[0028] Reference Figure 1As shown, a gas-liquid separator 2 is connected to one side of the compressor 1 via a pipe. A four-way valve 3 is installed at the output end of the compressor 1. An outdoor heat exchanger 4 is connected to the output end of the four-way valve 3 via a pipe. A multi-throttling component box 9 is connected to one side of the outdoor heat exchanger 4 via a pipe. An indoor heat exchanger 8 is connected to the input end of the four-way valve 3 via a pipe. A filter 5 is installed inside the multi-throttling component box 9. An outdoor main electronic expansion valve 6 is installed at the output end of the filter 5. A capillary tube 7 is installed at the output end of the outdoor main electronic expansion valve 6. There are two outdoor main electronic expansion valves 6, which are installed in parallel at the input end of the capillary tube 7. The output end of the multi-throttling component box 9 is fixedly connected to the indoor heat exchanger 8 via a pipe. One side of the gas-liquid separator 2 is fixedly connected to the indoor heat exchanger 8 via a pipe.

[0029] The compressor 1 absorbs the low-temperature, low-pressure gas from the gas-liquid separator 2 and converts it into high-temperature, high-pressure gas. The gas is then connected to a four-way valve 3 via a pipeline. The high-temperature, high-pressure gas is discharged to the outdoor heat exchanger 4 through the four-way valve 3. The gas undergoes a phase change process, becoming a gas-liquid mixture. This mixture is then throttled through dual outdoor main electronic expansion valves 6 and capillary tubes 7, becoming low-temperature, low-pressure gas that enters the indoor heat exchanger 8 for heat exchange, thus improving operating efficiency. The high-temperature, high-pressure gas-liquid mixture exiting the condenser needs to be cooled and depressurized through a multi-throttling component box 9 to become a fully liquid state. Two outdoor main electronic expansion valves 6 and capillary tubes 7 are used to throttle and control the liquid temperature and pressure, maintaining subcooling during the refrigerant condensation process to prevent liquid flashing. This reduces the condensation temperature, increases the evaporation temperature, and improves the air conditioning's cooling and heating capabilities.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a filter element 10 is installed inside the filter 5. A sealing groove 11 and a docking groove 12 are provided inside the filter 5. A movable rod 13 is movably connected to the outer wall of the filter 5. A nut 14 is installed on the outer wall of the movable rod 13. A cover plate 15 is installed on one side of the filter 5. A sealing ring 16 is installed on the outer wall of the cover plate 15. A docking block 17 is fixedly connected to one side of the cover plate 15. An avoidance groove 18 is provided inside the cover plate 15. The filter 5 and the filter element 10 are engaged. The filter 5 and the movable rod 13 form a rotating structure. The movable rod 13 is T-shaped. The outer wall of the movable rod 13 is threaded. The movable rod 13 is threadedly connected to the nut 14. The docking block 17 is engaged with the filter 5 through the docking groove 12. The sealing ring 16 is engaged with the filter 5 through the sealing groove 11.

[0031] By rotating the nut 14, which is threadedly connected to the movable rod 13, the nut 14 can be disassembled. Pull the movable rod 13 outward, causing it to rotate along the filter 5 and move out of the clearance groove 18. Pull the cover plate 15 outward, causing the mating block 17 to separate from the mating groove 12, thus disassembling the cover plate 15. This allows the filter element 10 to be disassembled and cleaned, preventing clogging of the filter element 10 from affecting the filtration effect. After cleaning, the filter element 10 can be installed into the filter 5. Similarly, the mating block 17 is inserted into the mating groove 12, assembling the cover plate 15 with the filter 5. With the cooperation of the sealing groove 11 and the sealing ring 16, the sealing performance of the filter 5 and the cover plate 15 assembly can be improved.

[0032] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A multi-throttling component based on a multi-split air conditioning system, comprising a compressor (1); Its features are: One side of the compressor (1) is connected to a gas-liquid separator (2) via a pipe. A four-way valve (3) is installed at the output end of the compressor (1). The output end of the four-way valve (3) is connected to an outdoor heat exchanger (4) via a pipe. One side of the outdoor heat exchanger (4) is connected to a multi-throttling component box (9) via a pipe. The input end of the four-way valve (3) is connected to an indoor heat exchanger (8) via a pipe. The multi-throttling component box (9) is equipped with a filter (5), an outdoor main electronic expansion valve (6) is installed at the output end of the filter (5), a capillary tube (7) is installed at the output end of the outdoor main electronic expansion valve (6), a filter element (10) is installed inside the filter (5), a sealing groove (11) is opened inside the filter (5), a docking groove (12) is opened inside the filter (5), a movable rod (13) is movably connected to the outer wall of the filter (5), a nut (14) is installed on the outer wall of the movable rod (13), a cover plate (15) is installed on one side of the filter (5), a sealing ring (16) is installed on the outer wall of the cover plate (15), a docking block (17) is fixedly connected to one side of the cover plate (15), and an avoidance groove (18) is opened inside the cover plate (15).

2. The multi-throttling component based on a multi-split air conditioning system according to claim 1, characterized in that: The number of outdoor main electronic expansion valves (6) is set to two, and the two outdoor main electronic expansion valves (6) are installed in parallel at the input end of the capillary tube (7).

3. The multi-throttling component based on a multi-split air conditioning system according to claim 1, characterized in that: The output end of the multi-throttling component box (9) is fixedly connected to the indoor heat exchanger (8) through a pipe, and one side of the gas-liquid separator (2) is fixedly connected to the indoor heat exchanger (8) through a pipe.

4. A multi-throttling component based on a multi-split air conditioning system according to claim 1, characterized in that: The filter (5) is engaged with the filter element (10), and the filter (5) and the movable rod (13) form a rotating structure.

5. A multi-throttling component based on a multi-split air conditioning system according to claim 1, characterized in that: The movable rod (13) is T-shaped, and the outer wall of the movable rod (13) is threaded. The movable rod (13) is threadedly connected to the nut (14).

6. A multi-throttling component based on a multi-split air conditioning system according to claim 1, characterized in that: The docking block (17) is engaged with the filter (5) through the docking groove (12), and the sealing ring (16) is engaged with the filter (5) through the sealing groove (11).

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