CN216308298U - Air conditioning system with overtemperature protection and liquid impact protection - Google Patents
Air conditioning system with overtemperature protection and liquid impact protection Download PDFInfo
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- CN216308298U CN216308298U CN202122493127.XU CN202122493127U CN216308298U CN 216308298 U CN216308298 U CN 216308298U CN 202122493127 U CN202122493127 U CN 202122493127U CN 216308298 U CN216308298 U CN 216308298U
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Abstract
The utility model discloses an air conditioning system with overtemperature protection and liquid impact protection, which comprises an evaporation refrigeration coil, a condensation heat dissipation coil, a compressor and an expansion valve, wherein the compressor is connected between an outlet of the evaporation refrigeration coil and an inlet of the condensation heat dissipation coil, and the expansion valve is arranged between the outlet of the condensation heat dissipation coil and the inlet of the evaporation refrigeration coil; the outlet of the compressor is provided with the air return pipeline, if the temperature of the return refrigerant is low, the accumulation of the liquid refrigerant in the compressor is reduced through the air return pipeline, and the liquid impact phenomenon is avoided. The inlet of the compressor is provided with the liquid return pipeline, if the temperature of the compressor during air exhaust is too high, the exhaust temperature is reduced through the liquid return pipeline, the compressor is prevented from being stopped and started frequently, the use performance of the compressor is improved, and the service life of the compressor is prolonged.
Description
Technical Field
The utility model relates to an air conditioning system with overtemperature protection and liquid impact protection
Background
When the existing air conditioner is used, if the temperature of a return refrigerant is low, liquid refrigerants are accumulated in a compressor, a liquid impact phenomenon can be generated, and the compressor can be damaged due to the liquid impact for a long time, so that the compressor cannot work normally. And too high temperature also can lead to the compressor to damage when the compressor exhausts, will stop the compressor immediately when exhaust temperature reaches exhaust high temperature protection threshold value and protect, will remove the protection after clearing away the high temperature protection and open compressor work once more, if the exhaust temperature who detects fluctuates about the temperature threshold value, will frequently appear high temperature protection, the compressor will frequently shut down and start, influences the performance of compressor, can reduce the life of compressor even.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an air conditioning system with over-temperature protection and liquid impact protection.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
an air conditioning system with overtemperature protection and liquid impact protection comprises an evaporation refrigeration coil, a condensation heat dissipation coil, a compressor and an expansion valve, wherein the compressor is connected between an outlet of the evaporation refrigeration coil and an inlet of the condensation heat dissipation coil, and the expansion valve is installed between the outlet of the condensation heat dissipation coil and the inlet of the evaporation refrigeration coil; a first temperature sensing probe is arranged at the inlet of the compressor, an air return pipeline and a first electromagnetic valve for controlling the on-off of the air return pipeline are arranged between the outlet of the compressor and the inlet of the compressor, the air return direction of the air return pipeline is from the outlet of the compressor to the inlet of the compressor, and when the temperature of a refrigerant sensed by the first temperature sensing probe is lower than a set low-temperature threshold value, the first electromagnetic valve is opened, and the air return pipeline returns air; the outlet of the compressor is provided with a second temperature sensing probe, a liquid return pipeline and a second electromagnetic valve for controlling the on-off of the liquid return pipeline are arranged between the inlet of the compressor and the outlet of the condensation heat dissipation coil, the liquid return direction of the liquid return pipeline is from the outlet of the condensation heat dissipation coil to the inlet of the compressor, and when the temperature of the refrigerant sensed by the second temperature sensing probe is higher than a set high-temperature threshold value, the second electromagnetic valve is opened, and liquid returns from the liquid return pipeline.
In another preferred embodiment, a gas-liquid separator is provided between the evaporative cooling coil and the inlet of the compressor.
In another preferred embodiment, an oil separator is provided between the outlet of the compressor and the condensing heat-dissipating coil.
In another preferred embodiment, a dry filter is arranged on the gas return pipeline and/or the liquid return pipeline.
The utility model has the beneficial effects that: the outlet of the compressor is provided with the air return pipeline, if the temperature of the return refrigerant is low, the accumulation of the liquid refrigerant in the compressor is reduced through the air return pipeline, and the liquid impact phenomenon is avoided. The inlet of the compressor is provided with the liquid return pipeline, if the temperature of the compressor during air exhaust is too high, the exhaust temperature is reduced through the liquid return pipeline, the compressor is prevented from being stopped and started frequently, the use performance of the compressor is improved, and the service life of the compressor is prolonged.
The utility model is further explained in detail with the accompanying drawings and the embodiments; an air conditioning system having an over-temperature protection and a liquid impact protection according to the present invention is not limited to the embodiments.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Detailed Description
In an embodiment, referring to fig. 1, an air conditioning system with over-temperature protection and liquid impact protection according to the present invention includes an evaporation cooling coil 1, a condensation cooling coil 2, a compressor 3 and an expansion valve 9, where the compressor 3 is connected between an outlet of the evaporation cooling coil 1 and an inlet of the condensation cooling coil 2, and the expansion valve 4 is installed between an outlet of the condensation cooling coil 2 and an inlet of the evaporation cooling coil 1; a first temperature sensing probe 41 is arranged at the inlet of the compressor 3, an air return pipeline and a first electromagnetic valve 42 for controlling the on-off of the air return pipeline are arranged between the outlet of the compressor 3 and the inlet of the compressor 3, the air return direction of the air return pipeline is from the outlet of the compressor 3 to the inlet of the compressor 3, and when the temperature of a refrigerant sensed by the first temperature sensing probe 41 is lower than a set low-temperature threshold value, the first electromagnetic valve 42 is opened, and the air return pipeline returns air; a second temperature sensing probe 51 is arranged at the outlet of the compressor 3, a liquid return pipeline and a second electromagnetic valve 52 for controlling the on-off of the liquid return pipeline are arranged between the inlet of the compressor 3 and the outlet of the condensation heat dissipation coil 2, the liquid return direction of the liquid return pipeline is from the outlet of the condensation heat dissipation coil 2 to the inlet of the compressor 3, and when the temperature of the refrigerant sensed by the second temperature sensing probe 51 is higher than a set high temperature threshold value, the second electromagnetic valve 52 is opened, and the liquid return pipeline returns liquid.
In this embodiment, a gas-liquid separator 6 is disposed between the evaporative cooling coil 1 and the inlet of the compressor 3. An oil separator 7 is arranged between the outlet of the compressor 3 and the condensing and heat-radiating coil 2.
In this embodiment, the inlets of the air return pipeline, the liquid return pipeline and the expansion valve are respectively provided with a dry filter 8.
The above embodiments are only used to further illustrate the air conditioning system with over-temperature protection and liquid impact protection, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an air conditioning system with overtemperature prote and liquid strike protection which characterized in that: the system comprises an evaporation refrigeration coil, a condensation heat dissipation coil, a compressor and an expansion valve, wherein the compressor is connected between an outlet of the evaporation refrigeration coil and an inlet of the condensation heat dissipation coil, and the expansion valve is arranged between the outlet of the condensation heat dissipation coil and the inlet of the evaporation refrigeration coil; a first temperature sensing probe is arranged at the inlet of the compressor, an air return pipeline and a first electromagnetic valve for controlling the on-off of the air return pipeline are arranged between the outlet of the compressor and the inlet of the compressor, the air return direction of the air return pipeline is from the outlet of the compressor to the inlet of the compressor, and when the temperature of a refrigerant sensed by the first temperature sensing probe is lower than a set low-temperature threshold value, the first electromagnetic valve is opened, and the air return pipeline returns air; the outlet of the compressor is provided with a second temperature sensing probe, a liquid return pipeline and a second electromagnetic valve for controlling the on-off of the liquid return pipeline are arranged between the inlet of the compressor and the outlet of the condensation heat dissipation coil, the liquid return direction of the liquid return pipeline is from the outlet of the condensation heat dissipation coil to the inlet of the compressor, and when the temperature of the refrigerant sensed by the second temperature sensing probe is higher than a set high-temperature threshold value, the second electromagnetic valve is opened, and liquid returns from the liquid return pipeline.
2. An air conditioning system with over-temperature protection and liquid impact protection as claimed in claim 1, wherein: and a gas-liquid separator is arranged between the evaporation refrigeration coil and the inlet of the compressor.
3. An air conditioning system with over-temperature protection and liquid impact protection as claimed in claim 1, wherein: an oil separator is arranged between the outlet of the compressor and the condensing and heat-dissipating coil.
4. An air conditioning system with over-temperature protection and liquid impact protection as claimed in claim 1, wherein: and a drying filter is arranged on the air return pipeline and/or the liquid return pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122493127.XU CN216308298U (en) | 2021-10-15 | 2021-10-15 | Air conditioning system with overtemperature protection and liquid impact protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122493127.XU CN216308298U (en) | 2021-10-15 | 2021-10-15 | Air conditioning system with overtemperature protection and liquid impact protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216308298U true CN216308298U (en) | 2022-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122493127.XU Active CN216308298U (en) | 2021-10-15 | 2021-10-15 | Air conditioning system with overtemperature protection and liquid impact protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216308298U (en) |
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2021
- 2021-10-15 CN CN202122493127.XU patent/CN216308298U/en active Active
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