CN201463389U - Two-stage compression steam-type refrigeration system for high-pressure stage air supplement - Google Patents
Two-stage compression steam-type refrigeration system for high-pressure stage air supplement Download PDFInfo
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- CN201463389U CN201463389U CN2009200981045U CN200920098104U CN201463389U CN 201463389 U CN201463389 U CN 201463389U CN 2009200981045 U CN2009200981045 U CN 2009200981045U CN 200920098104 U CN200920098104 U CN 200920098104U CN 201463389 U CN201463389 U CN 201463389U
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Abstract
The utility model discloses a two-stage compression steam-type refrigeration system for high-pressure stage air supplement, aiming at providing a refrigeration system which can provide refrigerating capacity and input power, so as to improve the system COP; the outlet of an evaporator is connected with the inlet of a low-pressure stage compressor, the outlet of the low-pressure stage compressor is connected with the immediate temperature refrigerant outlet of a middle cooler in parallel and then is connected with the inlet of the high-pressure stage compressor, the outlet of the high-pressure stage compressor is connected with the inlet of a condenser, the outlet of the condenser is connected with the supercooled liquid inlet of a flash evaporator, the air outlet of the flash evaporator is connected with the air supplement port of the high-pressure stage compressor by an electronic expansion valve, one path of the supercooled liquid outlet of the flash evaporator is connected with the inlet of the coil pipe of the middle cooler, the outlet of the coil pipe of the middle cooler is connected with the inlet of the flash evaporator by a second throttling valve, and the other path of the supercooled liquid outlet of the flash evaporator is connected with the box inlet of the middle cooler by a first throttling valve; the system can meet low-temperature requirements and achieve the energy-saving purpose.
Description
Technical field
The utility model relates to a kind of refrigeration system, in particular, relates to a kind of two stages of compression steam formula refrigeration system of hiigh pressure stage tonifying Qi.
Background technology
Refrigeration system is the operation of the hottest period in 1 year generally, and environment temperature is high more, and system's pressure reduction, Energy Efficiency Ratio are low more, so the operational factor of system is with variation of ambient temperature, and the refrigerating capacity of requirement also changes.
At present, general refrigeration system is common two-stage vapor compression type refrigerating system, when summer operation, because outdoor temperature temperature is higher, cause system's pressure reduction bigger, refrigerating capacity is descended, and compressor power consumption is excessive, requires can't satisfy the demands under the bigger situation in, refrigerating capacity lower to the environment temperature requirement.
The utility model content
The utility model is in order to overcome weak point of the prior art, a kind of refrigerating capacity and input power that can effectively improve refrigeration system to be provided, thereby improves the COP of system, the two stages of compression steam formula refrigeration system of the hiigh pressure stage tonifying Qi that cuts down the consumption of energy.
The utility model is achieved through the following technical solutions:
A kind of two stages of compression steam formula refrigeration system of hiigh pressure stage tonifying Qi, it is characterized in that, comprise the low-pressure stage compressor, condenser, evaporimeter, the hiigh pressure stage compressor, intercooler, flash vessel, the outlet of evaporimeter is connected with the import of low-pressure stage compressor, be connected with the import of hiigh pressure stage compressor after the middle temperature refrigerant outlet parallel connection of the outlet of low-pressure stage compressor and intercooler, the outlet of hiigh pressure stage compressor is connected with the import of condenser, the outlet of condenser is connected with the subcooled liquid import of flash vessel, the gas vent of flash vessel is connected by the gas supplementing opening of electric expansion valve with the hiigh pressure stage compressor, the subcooled liquid of flash vessel exports one the tunnel and is connected with the import of intercooler coil, the outlet of intercooler coil is connected with the import of evaporimeter by second choke valve, and the subcooled liquid of flash vessel exports another road and is connected with the casing import of intercooler by the first throttle valve.
The utlity model has following technique effect:
1, refrigeration system of the present utility model is beaten mouth and is carried out tonifying Qi in the middle of the hiigh pressure stage compressor, partly increased the air compensating system that is made of flash vessel in high pressure compressed.Obtain cold fully excessively saturated gas by what flash vessel came out, its temperature is starkly lower than the temperature of hiigh pressure stage compressor air suction implication body, after two strands of gases mix, temperature obviously reduces, thereby reduced the delivery temperature of hiigh pressure stage compressor, can effectively improve the refrigerating capacity and the input power of refrigeration system, make environment temperature reach lower level, satisfy requirement of low temperature.And the increase rate of refrigerating capacity is greater than the increase rate of power, thereby the COP of raising system cuts down the consumption of energy, and reaches purpose of energy saving.
2, refrigeration system of the present utility model adopts flash vessel mouth throttle system, can effectively improve compression process.
Description of drawings
Fig. 1 is the schematic diagram of the two stages of compression steam formula refrigeration system of the utility model hiigh pressure stage tonifying Qi.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Fig. 1 is the schematic diagram of the two stages of compression steam formula refrigeration system of the utility model hiigh pressure stage tonifying Qi, comprise low-pressure stage compressor 1, condenser 3, evaporimeter 8, hiigh pressure stage compressor 2, intercooler 4, flash vessel 5, the outlet of evaporimeter 8 is connected with the import of low-pressure stage compressor 1, be connected with the import of hiigh pressure stage compressor 2 after the middle temperature refrigerant outlet parallel connection of the outlet of low-pressure stage compressor 1 and intercooler 4, the outlet of hiigh pressure stage compressor 2 is connected with the import of condenser 3, the outlet of condenser 3 is connected with the subcooled liquid import of flash vessel 5, the gas vent of flash vessel 5 is connected with the gas supplementing opening of hiigh pressure stage compressor by electric expansion valve 7, the subcooled liquid of flash vessel 5 exports one the tunnel and is connected with the import of intercooler 4 coil pipes, the outlet of intercooler coil is connected with the import of evaporimeter 8 by second choke valve 6, and the subcooled liquid of flash vessel 5 exports another road and is connected with the casing import of intercooler 4 by first throttle valve 9.
The low-pressure steam that evaporimeter 8 produces is at first sucked by low-pressure stage compressor 1, the lower medium temperature and medium pressure cold-producing medium of the temperature of discharging from low pressure compressor with come out from middle cooler 4 enter hiigh pressure stage compressor 2 after the warm refrigerant mixed, the high temperature high pressure liquid of discharging from hiigh pressure stage compressor 2 enters condenser 3 and is condensed into liquid, the liquid that comes out from condenser 3 enters flash vessel 5, and the cold-producing medium that is evaporated to saturated gaseous state in flash vessel 5 enters hiigh pressure stage compressor 2 from the gas supplementing opening of hiigh pressure stage compressor and finishes the tonifying Qi process after the electric expansion valve throttling.The cold fully excessively high pressure liquid refrigerant that obtains of discharging from flash vessel 5 lower ends is divided into two-way, one road intercooler 4 inner coil pipes of flowing through, in coil pipe, evaporated and be cooled (cold excessively) by the liquid outside the coil pipe, be the low temperature liquid cold-producing medium through the 6 throttling step-downs of second choke valve then, enter evaporimeter 8 again.Another road of cold fully excessively high pressure liquid refrigerant first throttle valve 9 of flowing through that obtains of discharging from flash vessel 5 lower ends enters in the intercooler casing, and the liquid after the throttling evaporates in intercooler 4 casings.The carrying out that circulation goes round and begins again like this.Owing to enter gas and gas mixing in the hiigh pressure stage compressor through electric expansion valve by gas supplementing opening from entering the hiigh pressure stage compressor after low-pressure stage compressor and intercooler mix by the cold-producing medium that is evaporated to saturated gaseous state in the flash vessel 5, reduce the delivery temperature of hiigh pressure stage compressor, can effectively improve the refrigerating capacity of refrigeration system.
Refrigeration system of the present utility model is compared with common two stages of compression, has increased a tonifying Qi circuit cycle at high-pressure section, forms accurate three grades of compression refrigerating systems with original two stages of compression, can improve the refrigerating capacity of system, thereby increases the COP of system.
Although the disclosed two stages of compression steam formula refrigeration system that relates to a kind of hiigh pressure stage tonifying Qi has been carried out special description with reference to embodiment, embodiment described above is illustrative and not restrictive, under the situation that does not break away from spirit and scope of the present utility model, all variations and modification are all within scope of the present utility model.
Claims (1)
1. the two stages of compression steam formula refrigeration system of a hiigh pressure stage tonifying Qi, it is characterized in that, comprise the low-pressure stage compressor, condenser, evaporimeter, the hiigh pressure stage compressor, intercooler, flash vessel, the outlet of evaporimeter is connected with the import of low-pressure stage compressor, be connected with the import of hiigh pressure stage compressor after the middle temperature refrigerant outlet parallel connection of the outlet of low-pressure stage compressor and intercooler, the outlet of hiigh pressure stage compressor is connected with the import of condenser, the outlet of condenser is connected with the subcooled liquid import of flash vessel, the gas vent of flash vessel is connected by the gas supplementing opening of electric expansion valve with the hiigh pressure stage compressor, the subcooled liquid of flash vessel exports one the tunnel and is connected with the import of intercooler coil, the outlet of intercooler coil is connected with the import of evaporimeter by second choke valve, and the subcooled liquid of flash vessel exports another road and is connected with the casing import of intercooler by the first throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200981045U CN201463389U (en) | 2009-07-30 | 2009-07-30 | Two-stage compression steam-type refrigeration system for high-pressure stage air supplement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200981045U CN201463389U (en) | 2009-07-30 | 2009-07-30 | Two-stage compression steam-type refrigeration system for high-pressure stage air supplement |
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| CN201463389U true CN201463389U (en) | 2010-05-12 |
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| CN2009200981045U Expired - Fee Related CN201463389U (en) | 2009-07-30 | 2009-07-30 | Two-stage compression steam-type refrigeration system for high-pressure stage air supplement |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697627A (en) * | 2013-12-24 | 2014-04-02 | 上海理工大学 | Double-temperature condensing two-stage compressing heat pump system |
| CN105333656A (en) * | 2014-07-09 | 2016-02-17 | 海信（山东）空调有限公司 | Air replenishing and enthalpy increasing air conditioning system and air conditioner |
| CN106595107A (en) * | 2016-12-13 | 2017-04-26 | 湖南凯利制冷设备有限公司 | Intermediate cooling device and double-stage compression refrigerating system |
| CN107255371A (en) * | 2013-06-24 | 2017-10-17 | 三菱重工业株式会社 | Turborefrigerator |
| CN107676973A (en) * | 2017-10-27 | 2018-02-09 | 顺德职业技术学院 | Frequency conversion two-stage compression heat pump water heater dynamic heat frequency optimization and control method |
| CN107843020A (en) * | 2017-12-08 | 2018-03-27 | 天津商业大学 | A kind of Trans-critical cycle CO2Two-stage Compression is pressurized refrigeration system |
| CN107906752A (en) * | 2017-10-27 | 2018-04-13 | 顺德职业技术学院 | Twin-stage frequency conversion two-stage compression heat pump water heater frequency dynamic optimizes and control method |
| CN111336700A (en) * | 2020-03-04 | 2020-06-26 | 宁夏万仕隆冷冻科技股份有限公司 | Freon R507a twice throttling refrigeration system |
| CN111550943A (en) * | 2020-04-26 | 2020-08-18 | 珠海格力电器股份有限公司 | Secondary throttling double-condensation refrigerating system, air conditioner and control method |
-
2009
- 2009-07-30 CN CN2009200981045U patent/CN201463389U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255371A (en) * | 2013-06-24 | 2017-10-17 | 三菱重工业株式会社 | Turborefrigerator |
| CN107255371B (en) * | 2013-06-24 | 2020-04-24 | 三菱重工制冷空调系统株式会社 | Turbo refrigerator |
| CN103697627A (en) * | 2013-12-24 | 2014-04-02 | 上海理工大学 | Double-temperature condensing two-stage compressing heat pump system |
| CN103697627B (en) * | 2013-12-24 | 2015-12-30 | 上海理工大学 | Double-temperature refrigerator coagulates two stages of compression heat pump |
| CN105333656A (en) * | 2014-07-09 | 2016-02-17 | 海信（山东）空调有限公司 | Air replenishing and enthalpy increasing air conditioning system and air conditioner |
| CN106595107A (en) * | 2016-12-13 | 2017-04-26 | 湖南凯利制冷设备有限公司 | Intermediate cooling device and double-stage compression refrigerating system |
| CN107906752B (en) * | 2017-10-27 | 2019-06-14 | 顺德职业技术学院 | The optimization of twin-stage frequency conversion two-stage compression heat pump water heater frequency dynamic and control method |
| CN107906752A (en) * | 2017-10-27 | 2018-04-13 | 顺德职业技术学院 | Twin-stage frequency conversion two-stage compression heat pump water heater frequency dynamic optimizes and control method |
| WO2019080278A1 (en) * | 2017-10-27 | 2019-05-02 | 顺德职业技术学院 | Method for dynamically optimizing and controlling frequency two-stage variable frequency two-stage compression heat pump water heater |
| CN107676973A (en) * | 2017-10-27 | 2018-02-09 | 顺德职业技术学院 | Frequency conversion two-stage compression heat pump water heater dynamic heat frequency optimization and control method |
| CN107843020A (en) * | 2017-12-08 | 2018-03-27 | 天津商业大学 | A kind of Trans-critical cycle CO2Two-stage Compression is pressurized refrigeration system |
| CN111336700A (en) * | 2020-03-04 | 2020-06-26 | 宁夏万仕隆冷冻科技股份有限公司 | Freon R507a twice throttling refrigeration system |
| CN111550943A (en) * | 2020-04-26 | 2020-08-18 | 珠海格力电器股份有限公司 | Secondary throttling double-condensation refrigerating system, air conditioner and control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120730 |