CN215675925U - Large-cooling capacity multi-split air conditioner outdoor unit system - Google Patents
Large-cooling capacity multi-split air conditioner outdoor unit system Download PDFInfo
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- CN215675925U CN215675925U CN202121530880.5U CN202121530880U CN215675925U CN 215675925 U CN215675925 U CN 215675925U CN 202121530880 U CN202121530880 U CN 202121530880U CN 215675925 U CN215675925 U CN 215675925U
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Abstract
The utility model relates to the technical field of improvement of a multi-split air conditioner, in particular to a large-cooling capacity multi-split air conditioner outdoor unit system which comprises a compressor, a plurality of connecting copper pipes, an exhaust one-way valve, a high-pressure switch, a high-pressure sensor, an oil separator, a first oil return capillary tube, a second oil return capillary tube, an oil return electromagnetic valve, a gas bypass electromagnetic valve, an outdoor condenser, a condensing fan, a refrigeration electromagnetic valve, a main electronic expansion valve, a refrigerant cooling pipe, a compressor electric control board, an economizer, an auxiliary circuit electronic expansion valve, a liquid stop valve, a gas-liquid separator and a low-pressure sensor, wherein the compressor, the connecting copper pipes, the exhaust one-way valve, the high-pressure switch, the high-pressure sensor, the oil separator, the gas bypass electromagnetic valve, the condenser, the refrigeration electromagnetic valve, the main electronic expansion valve, the refrigerant cooling pipe, the compressor electric control board, the economizer, the auxiliary circuit electronic expansion valve, the liquid stop valve, the gas-liquid separator and the low-pressure sensor are arranged in an equal configuration multi-split air conditioner system.
Description
Technical Field
The utility model relates to the technical field of improvement of multi-connected air conditioner refrigeration air conditioners, in particular to a large-cooling capacity multi-connected air conditioner outdoor unit system.
Background
The multi-connected air conditioning unit is characterized in that one outdoor unit can be connected with a plurality of indoor units, and the number of the indoor units is 1-32. The refrigerating system is characterized in that an outdoor unit can convey refrigerant liquid to a plurality of indoor units through pipelines, and the indoor cold and heat load requirements can be met timely by controlling the refrigerant circulation amount of a compressor and the refrigerant flow entering each indoor heat exchanger. The system is a ring pipe network system consisting of a refrigeration compressor, an electronic expansion valve, other valve bodies and serial pipelines. The multi-connected air conditioning unit has the advantages of energy conservation, intelligent adjustment, accurate temperature control and the like, and each indoor unit can be independently adjusted, so that the requirements of different spaces and different air conditioning loads can be met.
The general multi-split air conditioning system is simpler. Has no obvious improvement effect on a multi-connected air-conditioning system. The utility model discloses a big cold volume multi-split air conditioning system sets up the oil separation, vapour and liquid separator, multiple refrigeration auxiliary assembly protection systems such as economic ware, exhaust check valve, electronic expansion valve, oil return solenoid valve for refrigerating system integral operation is stable.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a large-cooling-capacity multi-split air conditioner outdoor unit system, which aims to solve the defects of insufficient refrigerating capacity of the existing multi-split air conditioner system with the same configuration, improve the economy of refrigerating circulation and enable the multi-split air conditioner system to stably and reliably operate.
The technical scheme adopted by the utility model is as follows:
the outdoor unit system of the large-cooling-capacity multi-split air conditioner comprises a compressor, a plurality of connecting copper pipes, an exhaust one-way valve, a high-pressure switch, a high-pressure sensor, an oil separator, a first oil return capillary tube, a second oil return capillary tube, an oil return electromagnetic valve, an air bypass electromagnetic valve, an outdoor condenser, a condensing fan, a refrigeration electromagnetic valve, a main electronic expansion valve, a refrigerant cooling pipe, a compressor electric control board, an economizer, an auxiliary electronic expansion valve, a liquid stop valve, a gas-liquid separator and a low-pressure sensor, wherein the compressor, the connecting copper pipes, the exhaust one-way valve, the high-pressure switch, the high-pressure sensor and the oil separator are installed in the outdoor unit.
Specifically, all connecting copper pipes and refrigeration fittings are connected through brazing.
Specifically, all connecting copper pipes and the stop valve are connected through threads.
The utility model has the beneficial effects that: the utility model provides a large-cooling capacity multi-split air conditioner outdoor unit system which comprises a compressor, a plurality of connecting copper pipes, an exhaust one-way valve, a high-pressure switch, a high-pressure sensor, an oil separator, a first oil return capillary tube, a second oil return capillary tube, an oil return electromagnetic valve, an air bypass electromagnetic valve, an outdoor condenser, a condensing fan, a refrigerating electromagnetic valve, a main electronic expansion valve, a refrigerant cooling pipe, a compressor electric control board, an economizer, an auxiliary electronic expansion valve, a liquid stop valve, a gas-liquid separator and a low-pressure sensor, wherein the compressor, the connecting copper pipes, the exhaust one-way valve, the high-pressure switch, the high-pressure sensor and the oil separator are arranged in an outdoor unit.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
In the figure: the system comprises a compressor 1, a plurality of connecting copper pipes 2, an exhaust one-way valve 3, a high-pressure switch 4, a high-pressure sensor 5, an oil separator 6, a first oil return capillary pipe 7, a second oil return capillary pipe 8, an oil return electromagnetic valve 9, an air bypass electromagnetic valve 10, an outdoor condenser 11, a condensing fan 12, a refrigeration electromagnetic valve 13, a main electronic expansion valve 14, a refrigerant cooling pipe 15, an electric control board 16 of the compressor, an economizer 17, an auxiliary electronic expansion valve 18, a liquid stop valve 19, a gas stop valve 20, a gas-liquid separator 21 and a low-pressure sensor 22.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, the outdoor unit system of the multi-split air conditioner with large cooling capacity comprises a compressor 1 (comprising an outlet, an inlet and an air supplement port), a plurality of connecting copper pipes 2, an exhaust one-way valve 3, a high-voltage switch 4 (protecting a refrigeration system), a high-voltage pressure sensor 5, an oil separator 6 (comprising an inlet m, an outlet n, an oil outlet e and an oil outlet f), a first oil return capillary tube 7, a second oil return capillary tube 8, an oil return electromagnetic valve 9, an air bypass electromagnetic valve 10 (protecting the refrigeration system), an outdoor condenser 11, a condensing fan 12 (cooling a refrigerant in the outdoor condenser), a refrigeration electromagnetic valve 13, a main electronic expansion valve 14, a refrigerant cooling pipe 15, a compressor electric control board 16, an economizer 17 (comprising a main inlet a, a main outlet b, an auxiliary inlet c, an auxiliary outlet d, a-b heat exchange channels, c-d heat exchange channels) and an economizer 17 (comprising a main inlet a, a main outlet b, an auxiliary inlet c, an auxiliary outlet d, an auxiliary outlet, a heat exchange channel, a heat exchange channel, a heat exchange channel, The auxiliary electronic expansion valve 18, the liquid stop valve 19, the gas stop valve 20, the gas-liquid separator 21 and the low-pressure sensor 22 (protection refrigeration system), all connecting copper pipes and refrigeration accessories are connected through brazing, and all connecting copper pipes and stop valves are connected through threads.
In the refrigeration cycle of the outdoor unit during refrigeration operation, when the multi-split air conditioner is at the outdoor side refrigeration working environment temperature, high-temperature and high-pressure oil mist mixed refrigerant gas discharged from an outlet of a compressor 1 of an outdoor unit refrigerant enters an oil separator 6 from an inlet m of the oil separator 6 after passing through a plurality of connecting copper pipes 2 and an exhaust one-way valve 3, the high-temperature and high-pressure oil mist mixed refrigerant in the oil separator 6 is subjected to oil mist separation, lubricating oil enters the bottom of the oil separator 6 along the inner wall surface of the oil separator 6, the high-temperature and high-pressure refrigerant gas is arranged at the upper part of the oil separator 6, the high-temperature and high-pressure refrigerant gas flows out from an outlet n of the oil separator 6 (the lubricating oil at the bottom of the oil separator 6 returns oil from an oil outlet f through an oil return capillary tube 7, the lubricating oil at the bottom of the oil separator 6 returns oil from an oil outlet e through an oil return capillary tube 8), and the high-temperature and high-pressure refrigerant gas from the oil separator 6 enters an outdoor condenser 11 for heat release and condensation, the condensed liquid refrigerant flows through the electronic expansion valve 14 and the refrigeration electromagnetic valve 13 at the same time, then the liquid refrigerant flows through the compressor control panel 16 through the refrigerant cooling pipe 15 to cool the heating chip of the compressor control panel 16 (the temperature of the chip is reduced to ensure the safe operation of the compressor control panel), the liquid refrigerant flowing out of the compressor control panel 16 flows out of the electronic expansion valve for throttling through the economizer 17 (the main path inlet a is communicated with the main path outlet b, the auxiliary path inlet c is communicated with the auxiliary path outlet d, and two paths of refrigerant fluid perform heat exchange) after the main path inlet a flows out of the main path outlet b, and the throttled refrigerant enters each indoor unit (the figure of each indoor unit is omitted) through the liquid stop valve 19, and the throttled refrigerant absorbs heat in the evaporator of each indoor unit, thereby realizing the refrigeration of each indoor unit. The refrigerant flowing out of the indoor unit enters a gas-liquid separator 21 through a gas stop valve 20 to be subjected to gas-liquid separation, and the separated low-temperature and low-pressure refrigerant gas enters an inlet of the compressor 1 to be compressed by the compressor, so that a refrigeration cycle is realized. And a part of the refrigerant flowing out of the main path b of the economizer 17 enters the auxiliary path inlet c of the economizer 17 after being throttled and depressurized through the auxiliary path electronic expansion valve 18, the flow path refrigerants c-d exchange heat with the flow path refrigerant fluid of a-b in the economizer 17 and flow out of the auxiliary path outlet d of the economizer 17, the refrigerant gas from the auxiliary path outlet d enters a gas supplementing port of the compressor 1 through an enhanced vapor injection solenoid valve 23 and is compressed and sucked for compression, the mass flow and the enthalpy difference of the refrigerant are increased in the process, namely the enhanced vapor injection improves the refrigeration capacity of the multi-split system, and the refrigeration cycle aims to realize the increase of the refrigeration capacity of the multi-split system.
According to the refrigeration principle and the refrigerant characteristic, the defect that the refrigerating capacity of the existing multi-split air conditioning system with the same configuration is insufficient is overcome, the economy of the refrigeration cycle is improved, and the multi-split air conditioning system can stably and reliably operate.
The utility model provides an improvement on an outdoor unit system of a multi-split air conditioner, and optimizes a refrigeration system of the multi-split air conditioner. The operation stability and reliability of the multi-split air cooling system are improved. The refrigeration cycle, the multi-split air conditioner is under the outdoor side refrigeration working environment temperature, the outdoor machine refrigerant is discharged from the outlet of the compressor to be mixed with high temperature and high pressure oil mist to be refrigerant gas, the refrigerant gas enters the oil separator after passing through the exhaust one-way valve, the oil mist of the oil separated medium and high temperature and high pressure oil mist mixed refrigerant is separated, the lubricating oil enters the bottom of the oil separator along the inner wall surface of the oil separator, the high temperature and high pressure refrigerant gas is on the upper part of the oil separator, the high temperature and high pressure refrigerant gas from the oil separator enters the outdoor condenser to be condensed by heat release, the condensed liquid refrigerant simultaneously flows through the electronic expansion valve and the refrigeration electromagnetic valve, then the liquid refrigerant flows through the compressor control panel to cool the heating chip of the compressor control panel (the temperature of the chip is reduced to ensure the safe operation of the compressor electric control panel), the liquid refrigerant flowing out from the compressor electric control panel is communicated with the main outlet b through the economizer (the main inlet a, the auxiliary path inlet c is communicated with the auxiliary path outlet d, and two paths of refrigerant fluid exchange heat) flows out from the main path outlet b after entering the main path a, enters each indoor unit (the drawings of each indoor unit are omitted) through a liquid stop valve and is throttled by an electronic expansion valve, and the throttled refrigerant absorbs heat in an evaporator of each indoor unit to realize refrigeration of each indoor unit. The refrigerant flowing out of the indoor unit enters a gas-liquid separator through a gas stop valve to be subjected to gas-liquid separation, and the separated low-temperature low-pressure refrigerant gas enters the inlet of the compressor to be compressed by the compressor, so that a refrigeration cycle is realized. And a part of the refrigerant flowing out of the main path b of the economizer enters an auxiliary path inlet c of the economizer after being throttled and depressurized through an auxiliary path electronic expansion valve, the flow path refrigerant c-d exchanges heat with the flow path refrigerant fluid of a-b in the economizer and flows out of the auxiliary path outlet d of the economizer, the refrigerant gas from the auxiliary path outlet d enters a compressor air supplement port through an enhanced vapor injection solenoid valve and is compressed and sucked for compression, the mass flow and the enthalpy difference of the refrigerant are increased in the process, namely the enhanced vapor injection improves the refrigeration capacity of the multi-split system, and the refrigeration cycle aims to realize the increase of the refrigeration capacity of the multi-split system.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. The utility model provides a big cold volume multi-connected air condensing units system which characterized in that: the system comprises a compressor, a plurality of connecting copper pipes, an exhaust check valve, a high-pressure switch, a high-pressure sensor, an oil separator, a first oil return capillary tube, a second oil return capillary tube, an oil return electromagnetic valve, a gas bypass electromagnetic valve, an outdoor condenser, a condensing fan, a refrigeration electromagnetic valve, a main electronic expansion valve, a refrigerant cooling pipe, a compressor electric control board, an economizer, an auxiliary electronic expansion valve, a liquid stop valve, a gas-liquid separator and a low-pressure sensor, wherein the compressor, the connecting copper pipes, the exhaust check valve, the high-pressure switch, the high-pressure sensor and the oil separator are arranged in an outdoor unit.
2. The outdoor unit system of the large-capacity multi-split air conditioner as claimed in claim 1, wherein: all connecting copper pipes and refrigeration fittings are connected through brazing.
3. The outdoor unit system of the large-capacity multi-split air conditioner as claimed in claim 1, wherein: all connecting copper pipes are connected with the stop valve through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530880.5U CN215675925U (en) | 2021-07-06 | 2021-07-06 | Large-cooling capacity multi-split air conditioner outdoor unit system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530880.5U CN215675925U (en) | 2021-07-06 | 2021-07-06 | Large-cooling capacity multi-split air conditioner outdoor unit system |
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| CN215675925U true CN215675925U (en) | 2022-01-28 |
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| CN202121530880.5U Active CN215675925U (en) | 2021-07-06 | 2021-07-06 | Large-cooling capacity multi-split air conditioner outdoor unit system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791181A (en) * | 2022-04-18 | 2022-07-26 | 东南大学 | Two-stage compressed air source heat pump system based on oil balancing oil way balancing device |
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2021
- 2021-07-06 CN CN202121530880.5U patent/CN215675925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791181A (en) * | 2022-04-18 | 2022-07-26 | 东南大学 | Two-stage compressed air source heat pump system based on oil balancing oil way balancing device |
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