CN206420180U - A kind of self-overlay refrigerating device - Google Patents
A kind of self-overlay refrigerating device Download PDFInfo
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- CN206420180U CN206420180U CN201720014041.5U CN201720014041U CN206420180U CN 206420180 U CN206420180 U CN 206420180U CN 201720014041 U CN201720014041 U CN 201720014041U CN 206420180 U CN206420180 U CN 206420180U
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Abstract
The utility model is related to refrigeration technology field, more particularly to a kind of self-overlay refrigerating device.Including body, the body includes single machine two-stage screw bolt compressor, one-level refrigerator, two-stage system cooler and gas-liquid separator；The single machine two-stage screw bolt compressor includes low-pressure stage compressor and high pressure stage compressor；The port of export of the high pressure stage compressor connects the entrance point of one-level refrigerator, and the port of export of the one-level refrigerator connects the inlet end of gas-liquid separator, and the outlet side of the gas-liquid separator connects the entrance point of two-stage system cooler.One stage of compression in existing self-overlay refrigerating device is changed to two stages of compression, so as to realize compression ratio between reduction level, refrigerating capacity and refrigerating efficiency are improved in the case where not improving energy consumption of compressor.
Description
Technical field
The utility model is related to refrigeration technology field, more particularly to a kind of self-overlay refrigerating device.
Background technology
Existing High cooling power self-overlay refrigerating device, the mixed working fluid of different boiling is compressed using unit helical-lobe compressor,
Such as refrigerant R22/R23, R12/R13 etc., the characteristic such as different boiling is recycled under the uniform pressure of working medium to realize multi-stage condensing, many
Level separation and multistage evaporation produce low temperature, with simple in construction, easy to control, reliability is high, low cost and other advantages, but use
Single-stage compressor, efficiency low shortcoming big with compression ratio, and also the temperature that needs are produced is lower, and compression ratio is bigger, and efficiency is got over
It is low, largely limit its promotion and application in industry and commerce field of low-temperature refrigeration.
Utility model content
Technical problem to be solved in the utility model is：A kind of self-overlay refrigerating device is provided, solved existing big cold
Amount self-overlay refrigerating device uses Singe stage screw compressor, and compression ratio is big, the problem of refrigerating efficiency is low.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of self-overlay refrigerating device, bag
Body is included, the body includes single machine two-stage screw bolt compressor, one-level refrigerator, two-stage system cooler and gas-liquid separator；
The single machine two-stage screw bolt compressor includes low-pressure stage compressor and high pressure stage compressor；
The port of export of the high pressure stage compressor connects the entrance point of one-level refrigerator, the port of export of the one-level refrigerator
The inlet end of gas-liquid separator is connected, the outlet side of the gas-liquid separator connects the entrance point of two-stage system cooler.
The beneficial effects of the utility model are：A kind of self-overlay refrigerating device that the utility model is related to, retains existing
Self-overlay refrigerating device is simple in construction, easy to control, reliability is high and while low cost and other advantages, one stage of compression is changed into two
Level compression, after mixed working fluid compresses through single machine compression with double stage machine and after first-stage condenser condensation, higher boiling working medium is condensed into
Liquid, low boiling working fluid is still gas, and two kinds of working medium mixtures enter gas-liquid separator and carry out gas-liquid separation, will be isolated
Low boiling working fluid carries out time condensation, so that low boiling working fluid is improved into the purity in secondary condenser, it is achieved thereby that subtracting
Compression ratio between few level, improves refrigerating efficiency.
Brief description of the drawings
Fig. 1 is a kind of structural representation of self-overlay refrigerating device of the utility model embodiment；
Label declaration：
1st, single machine two-stage screw bolt compressor；101st, low-pressure stage compressor；102nd, high pressure stage compressor；2nd, one-level refrigerator；
3rd, two-stage system cooler；4th, gas-liquid separator；
401st, liquid storage container；5th, cryogenic regenerator；6th, cryogenic vaporizer；7th, expansion valve.
Embodiment
To describe technology contents of the present utility model, the objects and the effects in detail, below in conjunction with embodiment and match somebody with somebody
Accompanying drawing is closed to be explained.
The design of the utility model most critical is：One stage of compression in existing self-overlay refrigerating device is changed to two-stage pressure
Contracting, so as to realize compression ratio between reduction level, refrigerating capacity and refrigerating efficiency are improved in the case where not improving energy consumption of compressor.
Fig. 1, a kind of self-overlay refrigerating device, including body are refer to, the body includes single machine two-stage screw bolt compressor
1st, one-level refrigerator 2, two-stage system cooler 3 and gas-liquid separator 4；
The single machine two-stage screw bolt compressor 1 includes low-pressure stage compressor 101 and high pressure stage compressor 102；
The entrance point of the port of export connection one-level refrigerator 2 of the high pressure stage compressor 102, the one-level refrigerator 2
The port of export connects the inlet end of gas-liquid separator 4, the entrance point of the outlet side connection two-stage system cooler 3 of the gas-liquid separator 4.
Above-mentioned self-overlay refrigerating device, retain that existing self-overlay refrigerating device is simple in construction, easy to control, reliability is high and
While low cost and other advantages, one stage of compression is changed to two stages of compression, when mixed working fluid through single machine compression with double stage machine compress after with
And after first-stage condenser condensation, higher boiling working medium is condensed into liquid, low boiling working fluid is still gas, and two kinds of working medium mixtures enter
Gas-liquid separator carries out gas-liquid separation, isolated low boiling working fluid is carried out into time condensation, so as to improve low boiling working fluid
Into the purity in secondary condenser, it is achieved thereby that reducing compression ratio between level, refrigerating efficiency is improved.
Further, the bottom of gas-liquid separator 4 is provided with liquid storage container 401, and the bottom of liquid storage container 401 goes out
Liquid mouthful connection secondary condenser 3 heat exchange tube inlet end, the port of export connection gas-liquid separator 4 of the heat exchanger tube of secondary condenser 3
The arrival end of heat exchanger tube, the heat exchanger tube port of export of gas-liquid separator 4 connects the gas supplementing opening end of high pressure stage compressor 102.
Seen from the above description, low boiling working fluid is discharged from the outlet side of gas-liquid separator, into secondary condenser and two
Level condenser heat-exchange pipes carry out heat exchange, are condensed into liquid, and higher boiling working medium is gathered in liquid storage container in gas-liquid separator
In, secondary condenser heat exchanger tube is entered by the liquid outlet of reservoir bottom, heat exchange is carried out with low boiling working fluid, heat absorption turns into gas
State, return gas-liquid separator heat exchanger tube in, with stored in gas-liquid separator higher boiling Working medium gas heat exchange condensation after, enter
High pressure stage compressor is compressed circulation.It is cold to two grades of low boiling working fluid progress by self-overlay refrigerating device of the present utility model
It is solidifying, in the case where not increasing compressor power consumption, improve refrigerating capacity.
Further, the self-overlay refrigerating device also includes cryogenic regenerator 5 and cryogenic vaporizer 6；
The port of export of the secondary condenser 3 connects the arrival end of cryogenic regenerator 5, the outlet of the cryogenic regenerator 5
The arrival end of the end connection heat exchanger tube of cryogenic vaporizer 6, the port of export connection cryogenic regenerator 5 of the heat exchanger tube of cryogenic vaporizer 6
The arrival end of heat exchanger tube, the air entry end of the port of export connection low-pressure stage compressor 101 of the heat exchanger tube of cryogenic regenerator 5.
Seen from the above description, low boiling point working medium is condensed into after liquid by secondary condenser and discharged, and is changed with cryogenic regenerator
Heat supercooling, enter back into the heat exchanger tube of cryogenic vaporizer turns into gaseous state, enters back into cryogenic regenerator with carrying out heat exchange, heat absorption outside pipe
Heat exchange produces overheat, finally enters the air entry of the low-pressure stage compressor of single machine compression with double stage machine, re-starts compression circulation；It is logical
Cross refrigerating capacity and refrigerating efficiency that cryogenic regenerator further improves low boiling working fluid.
Further, the pipe that the liquid outlet of the bottom of liquid storage container 401 is connected with the heat exchange tube inlet end of secondary condenser 3
Expansion valve 7 is provided with road.
Further, the pipeline that the port of export of the cryogenic regenerator 5 is connected with the arrival end of the heat exchanger tube of cryogenic vaporizer 6
Place is provided with expansion valve 7.
Seen from the above description, expansion valve is used for control valve flow, prevents secondary condenser or cryogenic vaporizer area
Under-utilized or engine knock phenomenon.
Embodiment 1
Fig. 1, a kind of self-overlay refrigerating device, including body are refer to, the body includes single machine two-stage screw bolt compressor
1st, one-level refrigerator 2, two-stage system cooler 3, gas-liquid separator 4, cryogenic regenerator 5 and cryogenic vaporizer 6；The single machine two-stage spiral shell
Bar compressor 1 includes low-pressure stage compressor 101 and high pressure stage compressor 102；The port of export connection of the high pressure stage compressor 102
The entrance point of one-level refrigerator 2, the port of export of the one-level refrigerator 2 connects the inlet end of gas-liquid separator 4, the gas-liquid point
From the entrance point of the outlet side connection two-stage system cooler 3 of device 4.The bottom of gas-liquid separator 4 is provided with liquid storage container 401, institute
The liquid outlet connection secondary condenser 3 heat exchange tube inlet end of the bottom of liquid storage container 401 is stated, the heat exchanger tube of secondary condenser 3
The port of export connects the arrival end of the heat exchanger tube of gas-liquid separator 4, the heat exchanger tube port of export of the gas-liquid separator 4 connection hiigh pressure stage compression
The gas supplementing opening end of machine 102.The port of export of the secondary condenser 3 connects the arrival end of cryogenic regenerator 5, the cryogenic regenerator
5 port of export connects the arrival end of the heat exchanger tube of cryogenic vaporizer 6, the port of export connection low temperature of the heat exchanger tube of cryogenic vaporizer 6
The arrival end of the heat exchanger tube of regenerator 5, the air-breathing of the port of export connection low-pressure stage compressor 101 of the heat exchanger tube of cryogenic regenerator 5
Mouth end.It is provided with the pipeline that the liquid outlet of the bottom of liquid storage container 401 is connected with the heat exchange tube inlet end of secondary condenser 3 swollen
Swollen valve 7.It is provided with the pipeline that the port of export of the cryogenic regenerator 5 is connected with the arrival end of the heat exchanger tube of cryogenic vaporizer 6 swollen
Swollen valve 7.
In summary, a kind of self-overlay refrigerating device that the utility model is related to, retains existing self-overlay refrigerating device knot
Structure is simple, easy to control, reliability is high and while low cost and other advantages, one stage of compression is changed into two stages of compression, when mixing work
After matter is compressed through single machine compression with double stage machine and after first-stage condenser condensation, higher boiling working medium is condensed into liquid, low boiling working fluid
Still it is gas, two kinds of working medium mixtures enter gas-liquid separator and carry out gas-liquid separation, isolated low boiling working fluid is carried out
Time condensation, so as to improve low boiling working fluid into the purity in secondary condenser, it is achieved thereby that reducing compression ratio between level, is carried
High refrigerating efficiency.Low boiling working fluid is discharged from the outlet side of gas-liquid separator, is changed into secondary condenser with secondary condenser
Heat pipe carries out heat exchange, is condensed into liquid, and higher boiling working medium is gathered in gas-liquid separator in liquid storage container, by reservoir
The liquid outlet of bottom enters secondary condenser heat exchanger tube, and heat exchange is carried out with low boiling working fluid, and heat absorption turns into gaseous state, returns to gas-liquid
In the heat exchanger tube of separator, with stored in gas-liquid separator higher boiling Working medium gas heat exchange condensation after, into hiigh pressure stage compression
Machine is compressed circulation.B-grade condensation is carried out to low boiling working fluid by self-overlay refrigerating device of the present utility model, not increased
Plus in the case of compressor power consumption, improve refrigerating capacity.Low boiling point working medium is condensed into after liquid by secondary condenser and discharged, and low
Warm regenerator heat exchange supercooling, enter back into the heat exchanger tube of cryogenic vaporizer turns into gaseous state, enters back into carrying out heat exchange, heat absorption outside pipe
Cryogenic regenerator heat exchange produces overheat, finally enters the air entry of the low-pressure stage compressor of single machine compression with double stage machine, re-starts
Compression circulation；The refrigerating capacity and refrigerating efficiency of low boiling working fluid are further improved by cryogenic regenerator.Expansion valve is used to control
Valve flow processed, prevents secondary condenser or the underutilization of cryogenic vaporizer area or engine knock phenomenon.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalents made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in the technology neck of correlation
Domain, is similarly included in scope of patent protection of the present utility model.
Claims (5)
1. a kind of self-overlay refrigerating device, it is characterised in that including body, the body include single machine two-stage screw bolt compressor,
One-level refrigerator, two-stage system cooler and gas-liquid separator；
The single machine two-stage screw bolt compressor includes low-pressure stage compressor and high pressure stage compressor；
The port of export of the high pressure stage compressor connects the entrance point of one-level refrigerator, the port of export connection of the one-level refrigerator
The inlet end of gas-liquid separator, the outlet side of the gas-liquid separator connects the entrance point of two-stage system cooler.
2. self-overlay refrigerating device according to claim 1, it is characterised in that the gas-liquid separator bottom is provided with storage
Liquid container, the liquid outlet connection secondary condenser heat exchange tube inlet end of the liquid storage container bottom, the secondary condenser heat exchange
The port of export of pipe connects the arrival end of gas-liquid separator heat exchanger tube, and the gas-liquid separator heat exchanger tube port of export connects hiigh pressure stage pressure
The gas supplementing opening end of contracting machine.
3. self-overlay refrigerating device according to claim 1, it is characterised in that the self-overlay refrigerating device also includes low
Warm regenerator and cryogenic vaporizer；
The port of export of the secondary condenser connects the arrival end of cryogenic regenerator, and the port of export connection of the cryogenic regenerator is low
The arrival end of warm heat exchange pipe of evaporator, the port of export of the cryogenic vaporizer heat exchanger tube connects the entrance of cryogenic regenerator heat exchanger tube
End, the port of export of the cryogenic regenerator heat exchanger tube connects the air entry end of low-pressure stage compressor.
4. self-overlay refrigerating device according to claim 2, it is characterised in that the liquid outlet of the liquid storage container bottom with
Expansion valve is provided with the pipeline of secondary condenser heat exchange tube inlet end connection.
5. self-overlay refrigerating device according to claim 3, it is characterised in that the port of export of the cryogenic regenerator with it is low
Expansion valve is provided with the pipeline of the arrival end connection of warm heat exchange pipe of evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720014041.5U CN206420180U (en) | 2017-01-06 | 2017-01-06 | A kind of self-overlay refrigerating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720014041.5U CN206420180U (en) | 2017-01-06 | 2017-01-06 | A kind of self-overlay refrigerating device |
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| CN206420180U true CN206420180U (en) | 2017-08-18 |
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| CN201720014041.5U Active CN206420180U (en) | 2017-01-06 | 2017-01-06 | A kind of self-overlay refrigerating device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317761A (en) * | 2018-01-17 | 2018-07-24 | 福建工程学院 | A kind of auto-cascading refrigeration system and control method of the compression of list two-stage coupling |
| CN108413638A (en) * | 2018-03-16 | 2018-08-17 | 珠海格力电器股份有限公司 | A kind of auto-cascading refrigeration system with Two-stage Compression |
| CN108645067A (en) * | 2018-05-21 | 2018-10-12 | 福建工程学院 | A kind of Two-stage Compression cooling during rolling three-level automatic cascade refrigeration system |
| CN108692520A (en) * | 2018-05-23 | 2018-10-23 | 西安交通大学 | A kind of interior overlapping refrigerator system and control method using air supply compressor |
| CN109489289A (en) * | 2018-11-14 | 2019-03-19 | 珠海格力电器股份有限公司 | Overlapping air regulating system |
| CN109534275A (en) * | 2018-12-12 | 2019-03-29 | 无锡冠亚恒温制冷技术有限公司 | A kind of gas recovery system for oil |
| CN109812974A (en) * | 2018-04-11 | 2019-05-28 | 浙江工业大学 | The Teat pump boiler of step heating multi-model coupling |
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2017
- 2017-01-06 CN CN201720014041.5U patent/CN206420180U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317761A (en) * | 2018-01-17 | 2018-07-24 | 福建工程学院 | A kind of auto-cascading refrigeration system and control method of the compression of list two-stage coupling |
| CN108413638A (en) * | 2018-03-16 | 2018-08-17 | 珠海格力电器股份有限公司 | A kind of auto-cascading refrigeration system with Two-stage Compression |
| CN109812974A (en) * | 2018-04-11 | 2019-05-28 | 浙江工业大学 | The Teat pump boiler of step heating multi-model coupling |
| CN109812974B (en) * | 2018-04-11 | 2021-05-18 | 浙江工业大学 | Step heating multi-mode coupling heat pump water heater |
| CN108645067A (en) * | 2018-05-21 | 2018-10-12 | 福建工程学院 | A kind of Two-stage Compression cooling during rolling three-level automatic cascade refrigeration system |
| CN108692520A (en) * | 2018-05-23 | 2018-10-23 | 西安交通大学 | A kind of interior overlapping refrigerator system and control method using air supply compressor |
| CN108692520B (en) * | 2018-05-23 | 2020-01-21 | 西安交通大学 | Internal overlapping refrigerator system using air supply compressor and control method |
| CN109489289A (en) * | 2018-11-14 | 2019-03-19 | 珠海格力电器股份有限公司 | Overlapping air regulating system |
| US11781788B2 (en) | 2018-11-14 | 2023-10-10 | Gree Electric Appliances, Inc. Of Zhuhai | Cascade air conditioner system |
| CN109534275A (en) * | 2018-12-12 | 2019-03-29 | 无锡冠亚恒温制冷技术有限公司 | A kind of gas recovery system for oil |
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