CN218600027U - Refrigerating unit applied to low-temperature environment equipment - Google Patents
Refrigerating unit applied to low-temperature environment equipment Download PDFInfo
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- CN218600027U CN218600027U CN202222330461.8U CN202222330461U CN218600027U CN 218600027 U CN218600027 U CN 218600027U CN 202222330461 U CN202222330461 U CN 202222330461U CN 218600027 U CN218600027 U CN 218600027U
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Abstract
The utility model provides a be applied to refrigerating unit of low temperature environment equipment, including the unit shell, be equipped with compressor, evaporative condenser and evaporimeter in the unit shell, the gas vent of compressor is connected with the condenser, and the condenser has the condensation fan, the exit linkage of condenser has vapour and liquid separator, evaporative condenser has two pipelines, and the entry of evaporative condenser's first pipeline is connected to vapour and liquid separator's gas outlet, and the entry of evaporative condenser's second pipeline is connected to vapour and liquid separator's liquid outlet, and the entry of evaporative condenser's second tube coupling compressor establishes two pipelines in the evaporimeter, and the entry of evaporative condenser's first pipeline of second tube coupling evaporimeter, the entry of the exit linkage compressor of the first pipeline of evaporimeter, the second pipeline expert of evaporimeter have the coolant liquid of external equipment. The utility model discloses an evaporative condenser is with liquid refrigerant and gaseous state refrigerant heat transfer to liquefied gaseous state refrigerant increases its refrigeration effect.
Description
Technical Field
The utility model belongs to the refrigeration plant field, concretely relates to be applied to refrigerating unit of low temperature environment equipment.
Background
A refrigerator is a machine that transfers heat of a cooled object having a relatively low temperature to an environmental medium to obtain cold, and the heat transferred from the object having a relatively low temperature is conventionally called cold. The working fluid in the refrigerator which participates in the thermodynamic process change (energy conversion and heat transfer) is called refrigerant. The temperature range of refrigeration is usually above 120K, and below 120K belongs to the deep low temperature technical range. The refrigerator is widely applied to industrial and agricultural production and daily life.
The existing refrigerating unit has poor utilization effect on the refrigerant, so that the efficiency of the refrigerant is low.
SUMMERY OF THE UTILITY MODEL
To the deficiency that prior art exists, the utility model provides a high-efficient refrigerating unit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a be applied to refrigerating unit of low temperature environment equipment, includes unit housing and control assembly, be equipped with compressor, evaporative condenser and evaporimeter in the unit housing, the gas vent of compressor is connected with the condenser, and the condenser has the condensation fan, the exit linkage of condenser has vapour and liquid separator, evaporative condenser has two pipelines, and the entry of evaporative condenser's first pipeline is connected to vapour and liquid separator's gas outlet, and vapour and liquid separator's liquid outlet is equipped with the expansion valve to the entry of evaporative condenser's second pipeline, the entry of evaporative condenser's second tube coupling compressor establishes two pipelines in the evaporimeter, and evaporative condenser's second tube coupling evaporimeter's the entry of first pipeline, the entry of the exit linkage compressor of the first pipeline of evaporimeter, the second pipeline of evaporimeter leads to the coolant liquid that has external equipment.
Further, a heat regenerator is connected between the evaporative condenser and the evaporator, two pipelines are arranged in the heat regenerator, an outlet of a first pipeline of the evaporative condenser is connected with a first pipeline of the heat regenerator, an outlet of the first pipeline of the heat regenerator is connected with an inlet of the first pipeline of the evaporator, an expansion valve is also arranged between the outlet of the first pipeline of the heat regenerator and the inlet of the first pipeline of the evaporator, an inlet of the first pipeline of the evaporator is connected with an inlet of a second pipeline of the heat regenerator, and an outlet of the second pipeline of the heat regenerator is connected with an inlet of the compressor.
Further, the heat regenerator is a plate heat exchanger.
Further, the compressor is connected in parallel with an expansion tank, and an inlet and an outlet of the expansion tank are respectively connected with an inlet and an air outlet of the compressor.
Furthermore, the control assembly comprises an electric control box, a control panel is installed on a panel of the electric control box, and the control panel monitors and controls all parts of the refrigerating unit.
Further, the evaporative condenser and the evaporator are plate heat exchangers.
Furthermore, the pipelines of the air outlet and the inlet of the compressor are provided with shock absorbing hoses.
Furthermore, the inlet and outlet of the condenser, the inlet and outlet of the compressor and the inlet and outlet of the second pipeline of the evaporator are all provided with temperature sensors.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an evaporative condenser is with the liquid refrigerant of high boiling and the gaseous state refrigerator heat transfer of low boiling to liquefied high boiling gaseous state refrigerant increases its cooling effect.
Drawings
Fig. 1 is an external view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the embodiment of the present invention;
FIG. 3 is a schematic view of a pipeline connection according to an embodiment of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. the system comprises a compressor, 2, a condenser, 3, a condensing fan, 4, a gas-liquid separator, 5, an evaporative condenser, 6, an evaporator, 7, a heat regenerator, 8, an expansion tank, 9, an electronic control box, 10, a control panel, 11, a temperature sensor, 12, an expansion valve, 13, a switch, 14 and a pressure control valve.
Detailed Description
The present invention is further described in detail below with reference to specific embodiments so that those skilled in the art can more clearly understand the present invention.
As shown in fig. 1-3, a refrigerating unit applied to low temperature environment equipment comprises a unit housing and a control assembly, wherein a compressor 1, an evaporative condenser 5 and an evaporator 6 are arranged in the unit housing, a gas exhaust port and an inlet of the compressor 1 are both provided with a switch 13, a gas exhaust port of the compressor 1 is connected with a condenser 2, the condenser 2 is provided with a condensing fan 3, the condensing fan 3 is installed on the unit housing, an outlet of the condenser 2 is connected with a gas-liquid separator 4, the evaporative condenser 5 is provided with two pipelines, a gas outlet of the gas-liquid separator 4 is connected with an inlet of a first pipeline of the evaporative condenser 5, a liquid outlet of the gas-liquid separator 4 is provided with an expansion valve 12 and is connected with an inlet of a second pipeline of the evaporative condenser 5, a second pipeline of the evaporative condenser 5 is connected with an inlet of the compressor 1, two pipelines are arranged in the evaporator 6, the second pipeline of the evaporative condenser 5 is connected with an inlet of the first pipeline of the evaporator 6, an outlet of the first pipeline of the evaporator 6 is connected with an inlet of the compressor 1, and a second pipeline of the evaporator 6 is communicated with cooling liquid of external equipment.
The refrigerant adopted by the application is a mixed refrigerant and is formed by mixing a high-boiling-point refrigerant and a low-boiling-point refrigerant, the two refrigerants are compressed into a high-temperature high-pressure gaseous refrigerant in a compressor 1, discharged from an exhaust port of the compressor 1, enter a condenser 2 for cooling, and are condensed to obtain a gas-liquid refrigerant, wherein the high-boiling-point refrigerant is in a liquid state, the low-boiling-point refrigerant is still in a gaseous state, and the two refrigerants are separated in a gas-liquid separator 4;
the liquid refrigerant enters a second pipeline of the evaporative condenser 5 after being throttled by an expansion valve 12 at a liquid outlet of the gas-liquid separator 4, the gaseous refrigerant enters a first pipeline of the evaporative condenser 5, the gaseous refrigerant and the liquid refrigerant exchange heat in the evaporative condenser 5 to liquefy the gaseous refrigerant, so that the cold energy of the gaseous refrigerant is increased, and the condensing agent with high boiling point flows back to the compressor 1;
the low boiling point liquid condensing agent enters the evaporator 6 to absorb the heat of the cooling liquid of the external equipment, and after absorbing the heat, the low boiling point liquid condensing agent flows back to the compressor 1 to circulate.
Preferably, a regenerator 7 is connected between the evaporative condenser 5 and the evaporator 6, two pipelines are arranged in the regenerator 7, an outlet of the first pipeline of the evaporative condenser 5 is connected with the first pipeline of the regenerator 7, an outlet of the first pipeline of the regenerator 7 is connected with an inlet of the first pipeline of the evaporator 6, an expansion valve 12 is also arranged between an outlet of the first pipeline of the regenerator 7 and an inlet of the first pipeline of the evaporator 6, an inlet of the first pipeline of the evaporator 6 is connected with an inlet of the second pipeline of the regenerator 7, and an outlet of the second pipeline of the regenerator 7 is connected with an inlet of the compressor 1.
Therefore, the low-boiling-point refrigerant enters the first pipeline of the heat regenerator 7 after being condensed by the evaporative condenser 5, then enters the evaporator 6, then flows back into the second pipeline of the heat regenerator 7, and exchanges heat with the low-boiling-point liquid refrigerant which is not throttled and cooled by the expansion valve 12, so as to further reduce the temperature of the low-boiling-point liquid refrigerant before throttling, and improve the heat absorption effect of the low-boiling-point liquid refrigerant in the evaporator 6.
Specifically, the regenerator 7 is a plate heat exchanger, but other heat exchangers, such as a spiral tube heat exchanger, may also be used.
The compressor 1 is connected in parallel with an expansion tank 8, an inlet and an outlet of the expansion tank 8 are respectively connected with an inlet and an air outlet of the compressor 1, and an inlet and an outlet of the expansion tank 8 are respectively provided with a pressure control valve 14.
Under static state, low boiling refrigerant is changeed easily for the gaseous state leads to the volume expansion, can cause whole unit to damage seriously, thereby protects whole unit through setting up expansion tank 8 as the buffering.
The control assembly comprises an electric control box 9, a control panel 10 is installed on a panel of the electric control box 9, and the control panel 10 monitors and controls all parts of the refrigerating unit.
Specifically, the evaporative condenser 5 and the evaporator 6 are both plate heat exchangers, and similarly, other heat exchangers, such as spiral tube heat exchangers, may also be used.
The pipelines at the air outlet and the inlet of the compressor 1 are provided with shock absorbing hoses, so that the influence of the vibration of the compressor 1 during working on the pipelines is reduced.
And temperature sensors 11 are arranged at the inlet and outlet of the condenser, the inlet and outlet of the compressor and the inlet and outlet of the second pipeline of the evaporator, and the temperature sensors 11 are connected to the control assembly for monitoring.
The mechanisms, assemblies and components of the present invention that are not described with respect to specific structures are conventional structures that exist in the prior art. Can be purchased directly from the market.
The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a be applied to refrigerating unit of low temperature environment equipment, its characterized in that, includes unit housing and control assembly, be equipped with compressor (1), evaporative condenser (5) and evaporimeter (6) in the unit housing, the gas vent of compressor (1) is connected with condenser (2), condenser (2) have condensing fan (3), the exit linkage of condenser (2) has vapour and liquid separator (4), evaporative condenser (5) have two pipelines, and the entry of the first pipeline of evaporative condenser (5) is connected to the gas outlet of vapour and liquid separator (4), and the liquid outlet of vapour and liquid separator (4) is equipped with expansion valve (12), and connect the entry of the second pipeline of evaporative condenser (5), and the entry of the second tube coupling compressor (1) of evaporative condenser (5), establish two pipelines in evaporimeter (6), the entry of the first pipeline of the second tube coupling evaporimeter (6) of evaporimeter (5), the exit coupling compressor (1) of the first pipeline of evaporimeter (6), the second pipeline of evaporimeter (6) leads to the coolant liquid that has external equipment.
2. Refrigerating unit for application in a low-temperature environment according to claim 1, characterized in that a regenerator (7) is connected between the evaporative condenser (5) and the evaporator (6), two lines are provided in the regenerator (7), the outlet of the first line of the evaporative condenser (5) is connected to the first line of the regenerator (7), the outlet of the first line of the regenerator (7) is connected to the inlet of the first line of the evaporator (6), an expansion valve is also provided between the outlet of the first line of the regenerator (7) and the inlet of the first line of the evaporator (6), the inlet of the first line of the evaporator (6) is connected to the inlet of the second line of the regenerator (7), and the outlet of the second line of the regenerator (7) is connected to the inlet of the compressor (1).
3. Refrigerating unit for application in a low-temperature environment according to claim 2, characterized in that the regenerator (7) is a plate heat exchanger.
4. The refrigerating unit applied to the low-temperature environment equipment according to claim 1, wherein the compressor (1) is connected with an expansion tank (8) in parallel, and an inlet and an outlet of the expansion tank (8) are respectively connected with an inlet and an outlet of the compressor (1).
5. The refrigeration unit for low-temperature environment equipment according to claim 1, wherein the control assembly comprises an electronic control box (9), a control panel (10) is mounted on a panel of the electronic control box (9), and the control panel (10) monitors and controls various components of the refrigeration unit.
6. Refrigerating unit for application in cold environment applications according to claim 1, characterized in that both the evaporative condenser (5) and the evaporator (6) are plate heat exchangers.
7. Refrigerating unit for application in equipment in a cold environment according to claim 1, characterized in that the pipes of the outlet and inlet of the compressor (1) are provided with shock absorbing hoses.
8. The refrigeration unit for application to equipment in a cold environment according to claim 1, wherein the inlet and outlet of the condenser, the inlet and outlet of the compressor and the inlet and outlet of the second pipe of the evaporator are provided with temperature sensors (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222330461.8U CN218600027U (en) | 2022-08-31 | 2022-08-31 | Refrigerating unit applied to low-temperature environment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222330461.8U CN218600027U (en) | 2022-08-31 | 2022-08-31 | Refrigerating unit applied to low-temperature environment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218600027U true CN218600027U (en) | 2023-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222330461.8U Active CN218600027U (en) | 2022-08-31 | 2022-08-31 | Refrigerating unit applied to low-temperature environment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218600027U (en) |
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2022
- 2022-08-31 CN CN202222330461.8U patent/CN218600027U/en active Active
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