Compression condensation system with ejector

An ejector and condenser technology, applied in the field of physics, can solve the problems of long operation time, large condensation load, complicated operation, etc., and achieve the effect of short operation time, less condensation load, and reduced condensation load

Inactive Publication Date: 2016-08-31

UNIV OF SHANGHAI FOR SCI & TECH

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AI-Extracted Technical Summary

Problems solved by technology

[0008] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a compression condensing system with an ejector. The compression condensing system with an ejector should...

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Method used

Compressor 2 discharges and ejects gas-liquid separator 1 liquid by ejector 3, makes a part of refrigerant enter condenser 4 without passing through compressor 2, under the constant requirement of cooling load, compressor 2 sucks and discharges The gas volume can be reduced, the power of the compressor 2 is reduced, and the condensation load is reduced.

Gaseous refrigerant is conveyed by compressor 2, and liquid refrigerant is conveyed by ejector 3, realizes gaseous state, liquid refrigerant reclaims simultaneously, makes recovery time reduce, compressor 2, the reduction of condensing blower operation time realize energ...

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Abstract

The invention provides a compression condensation system with an ejector. The compression condensation system comprises a recycled container, a refrigeration compressor, the ejector, a condenser and a recycling container. When the compression condensation system is used for a refrigerant recycling system, compressor exhaust drives an ejected refrigerant to enter the condenser together through the ejector, not all liquid refrigerants need to be completely evaporated into gas refrigerants which enter the compressor to be compressed, and temperature rise and pressure rise are avoided, so that condensation loads are few; the gas refrigerants and the liquid refrigerants are recycled at the same time, the running time is short, and the service life of the compressor is prolonged. The invention further provides a refrigeration system with an ejector. The refrigeration system comprises a gas-liquid separator, a refrigeration compressor, the ejector, a condenser, a throttle element and an evaporator. When the refrigeration system with the ejector is used for a refrigeration system, compressor exhaust ejects liquid refrigerants of the gas-liquid separator through the ejector, the air suction and exhaust quantity of the compressor can be reduced at the request that cooling loads are constant, and thus power consumption of the compressor is reduced; and the refrigerants can enter the condenser without completely passing the compressor, so that condensation loads are reduced.

Application Domain

Mechanical apparatusCompression machines with non-reversible cycle +2

Technology Topic

InjectorRefrigerant +6

Image

Examples

Experimental program(5)

Example Embodiment

[0022] Example 1

[0023] Such as figure 1 As shown, the present invention provides a refrigerant recovery system with an ejector, including a recovered container 1, a refrigeration compressor 2, an ejector 3, a condenser 4, and a recovery container 5. The recovered container 1 and a first Two shut-off valves 8 are connected, the second shut-off valve 8 is connected with the refrigeration compressor 2, the refrigeration compressor 2 is connected with the ejector 3, and the ejector 3 is connected with the The condenser 4 is connected, the condenser 4 is connected to the recovery container 5, the ejector 3 is also connected to a one-way valve 6, and the one-way valve 6 is connected to a first stop valve 7 , The first shut-off valve 7 is connected to the recovered container 1.

[0024] When there is liquid refrigerant in the recovered container 1, such as figure 1 As shown, valves 7 and 8 are open, the suction pipe of the refrigeration compressor 2 is connected to the gas pipe of the recovered container 1, and the discharge pipe of the refrigeration compressor 2 is connected to the inlet of the ejector 3, which is passed through the ejector inlet. The one-way valve 6 is connected with the liquid pipe of the recovered container 1, the outlet of the ejector 3 is connected with the inlet of the condenser 4, and the outlet of the condenser 4 is connected with the recovery container 5.

[0025] The principle of Embodiment 1 is: the refrigeration compressor 2 sucks in the refrigerant evaporated from the recovery container 1 for compression, and discharges the high-temperature and high-pressure gaseous refrigerant into the nozzle at the inlet of the ejector 3. As the flow path becomes smaller, the flow velocity increases, resulting in low pressure. The liquid refrigerant in the recovered container 1 is pumped into the ejector 3 and mixed with the compressor 2 exhaust in the mixing section of the ejector 3. The mixed refrigerant is diffused in the diffuser section of the ejector 3 and enters the condenser 4 Condensate, and the condensate enters the recovery container 5.

[0026] Due to the use of the ejector 3, the refrigerant in the recovered container 1 does not need to be compressed by the compressor 2, and a part of the refrigerant can be injected by the ejector 3 to enter the condenser 4. At the same time, because this part of the refrigerant is not compressed and compressed by the compressor The compressed refrigeration mixture does not need to condense all the refrigerant in the recovered container 1, and the inlet of the condenser 4 comes with the injected liquid refrigerant. This part of the refrigerant does not increase the condensation load, so that the condensation load is reduced.

[0027] The gaseous refrigerant is delivered by the compressor 2 and the liquid refrigerant is delivered by the ejector 3, which realizes the simultaneous recovery of gaseous and liquid refrigerants, which reduces the recovery time. The compressor 2 and the condensing fan reduce the operating time to achieve the effect of energy saving and life extension .

Example Embodiment

[0028] Example 2

[0029] When there is only refrigerant wet vapor or dry vapor in the recovered container 1, such as figure 2 Shown.

[0030] The connection mode and operating principle of the system are the same as those of the first embodiment. The difference is that the substance injected by the ejector 3 is a gaseous refrigerant at this time.

[0031] Although the ejector 3 no longer injects liquid refrigerant, the exhaust from the compressor 2 injects the gaseous refrigerant in the recovered container 1. The injected refrigerant does not need to be compressed into a high temperature and high pressure state by the compressor 2, which can be compared with the embodiment 1 The same beneficial effect.

Example Embodiment

[0032] Example 3

[0033] Such as image 3 As shown, the present invention also provides another refrigerant recovery system with ejector, including the recovered container 1, the refrigeration compressor 2, the ejector 3, the condenser 4, and the recovery container 5. The recovered container 1 and A second stop valve 8 is connected, the second stop valve 8 is connected to the refrigeration compressor 2, the refrigeration compressor 2 is connected to the ejector 3, and the ejector 3 is connected to the The condenser 4 is connected, the condenser 4 is connected with the recovery container 5, the ejector 3 is also connected with a one-way valve 6, and the one-way valve 6 is connected to the second shut-off valve 8. The pipeline communicates with the refrigeration compressor 2.

[0034] When the recovered container 1 does not have a liquid pipe, or it is inconvenient for liquid recovery, the ejector 3’s ejector inlet is connected in parallel with the refrigeration compressor 2 suction pipe, and the other components and connection methods are the same as those of the first embodiment.

[0035] In the case that the recovered container 1 does not have a liquid tube or is inconvenient for liquid recovery, the ejector 3 can also be used to recover two refrigerants at the same time. The effect achieved is the same as that of the second embodiment.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Short runtime

Compression condensation system with ejector

An ejector and condenser technology, applied in the field of physics, can solve the problems of long operation time, large condensation load, complicated operation, etc., and achieve the effect of short operation time, less condensation load, and reduced condensation load

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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