CN106052178A - Two-stage refrigerating circulation system with economizer and oil cooling compression - Google Patents
Two-stage refrigerating circulation system with economizer and oil cooling compression Download PDFInfo
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- CN106052178A CN106052178A CN201610364745.5A CN201610364745A CN106052178A CN 106052178 A CN106052178 A CN 106052178A CN 201610364745 A CN201610364745 A CN 201610364745A CN 106052178 A CN106052178 A CN 106052178A
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- compressor
- economizer
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- oil
- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a two-stage refrigerating circulation system with an economizer and oil cooling compression. The two-stage refrigerating circulation system with the economizer and oil cooling compression comprises a compressor, an oil separator, a first heat exchanger, a second heat exchanger, a third heat exchanger, the economizer, a heat regenerator, a first throttling device, a second throttling device and a third throttling device, and all the components are connected through pipelines. The compressor, the oil separator, the first heat exchanger, the first throttling device, the economizer, the second throttling device and the second heat exchanger form a refrigerant cycle. The compressor, the oil separator, the third heat exchange and the third throttling device form an oil cooling compression cycle. The mass percentage of oil in a mixture (oil and a refrigerant) at an exhaust port of the compressor is 0%-60% and can be regulated. According to the two-stage refrigerating circulation system with an economizer and oil cooling compression, the oil spraying quantity can be increased, compression heat is effectively absorbed by means of the oil cooling compression process, the exhaust temperature of the compressor is decreased, and the isentropic efficiency and isasteric efficiency of the compressor are improved. Through the combination with an air-supply enthalpy increasing cycle of the economizer, the refrigerant in the economizer is evaporated for oil cooling, an oil cooling system is simplified, and the performance of the oil cooling compression cycle is improved.
Description
Technical field
The present invention relates to refrigerating field, particularly relate to a kind of band economizer and oil cooling compression two-stage cooling cycle system.
Background technology
Refrigeration plant is operated under big temperature difference operating mode and there is the phenomenons such as inefficient, excessive discharge temperature, general solution party
Method is to use Gas-supplying enthalpy-increasing circulation, improves system effectiveness by second vapor injection and reduces delivery temperature.But when the temperature difference arrives greatly necessarily
During degree, Gas-supplying enthalpy-increasing circulation does not simply fail to solve the problem of excessive discharge temperature, causes system to shut down, there is also system
The low-down problem of performance.Another method is toward compressor cylinder-in oil-jet, absorbs substantial amounts of by spraying into a certain amount of oil
The heat of compression, reduces the temperature of gas in the jar.But distributive value and oil spout temperature are again the key factors affecting systematic function, and this is just
Limit the performance of oil cooling compression circulation.
Summary of the invention
It is an object of the invention to solve the above-mentioned problems in the prior art, by spraying into substantial amounts of oil, effectively inhale
Receive the heat of compression, it is achieved quasi-isotherm compression, and combine with Gas-supplying enthalpy-increasing circulation, utilize economizer inner refrigerant to evaporate to oil cooling,
Simplify oil cooling system, further increase band economizer and the performance of oil cooling compression two-stage refrigeration.The technology of the present invention
Scheme is as follows:
Band economizer and oil cooling compression two-stage refrigeration, including compressor, oil eliminator, First Heat Exchanger, the second heat exchange
Device, the 3rd heat exchanger, economizer, regenerator, first throttle device, the second throttling arrangement, the 3rd throttling arrangement, compressor air-discharging
Mouth is connected with oil eliminator port A, and oil eliminator port B is connected with one end of First Heat Exchanger, the other end of First Heat Exchanger
It is connected with the port A of economizer respectively and one end of the second throttling arrangement is connected, the port B of economizer and the port A of regenerator
Being connected, the port B of regenerator is connected with one end of first throttle device, the other end of first throttle device and the second heat exchanger phase
Even, the second heat exchanger the other end be connected with the port C of regenerator, the port D of regenerator is connected with the air entry of compressor；
The other end of the second throttling arrangement is connected with the port C of economizer, and the port D of economizer is connected with compressor gas supplementing opening, is formed
Refrigerant loop.Exhaust outlet of compressor is connected with oil eliminator port A, oil eliminator port C and one end phase of the 3rd heat exchanger
Even, the other end of the 3rd heat exchanger is connected with the port E of economizer, the port F of economizer and one end phase of the 3rd throttling arrangement
Even, the other end of the 3rd throttling arrangement is connected with the pouring orifice of compressor, forms oil return line.Wherein, exhaust outlet of compressor mixing
In thing (oil and cold-producing medium), the mass percent of oil is between 0%-60% and adjustable.
Further, in described refrigeration system, the air entry of the first pouring orifice of compressor and compressor can be compressor two
Individual independent mouth, it is preferable that the pouring orifice of compressor and the air entry of compressor are the same mouth of compressor.
Further, described refrigeration system also includes the second oiling branch road, and the port F of economizer is except filling with the 3rd throttling
Outside the one end put is connected, also one end with the 4th throttling arrangement is connected, the other end of the 4th throttling arrangement and the second of compressor
Pouring orifice is connected, it is preferable that the second pouring orifice and Gas-supplying enthalpy-increasing mouth are same mouth.
Further, in described refrigeration system, throttling arrangement can be capillary tube, electric expansion valve or heating power expansion valve.
Further, compressor can be rotor-type compressor, scroll compressor or screw compressor.
The invention has the beneficial effects as follows:
The refrigeration system of the present invention, the advantage not only remaining Gas-supplying enthalpy-increasing, also utilize oil cooling compression circulation to reduce
The delivery temperature of compressor, improve compressor isentropic efficiency and etc. hold efficiency, simultaneously by combining with Gas-supplying enthalpy-increasing circulation, profit
With economizer inner refrigerant shwoot to oil cooling, simplify oil cooling system, and it is cold to further increase oil by backheat branch road
But the performance of circulation is compressed.
Accompanying drawing explanation
Fig. 1 is a kind of band economizer and the signal of oil cooling compression dual unit SAPMAC method system embodiment one of the present invention
Figure；
Fig. 2 is a kind of band economizer and the signal of oil cooling compression dual unit SAPMAC method system embodiment two of the present invention
Figure；
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples pair
A kind of band economizer of the present invention and oil cooling compression two-stage cooling cycle system are further elaborated.Should be appreciated that
Specific embodiment described herein is only used for explaining the present invention, is not intended to limit the present invention.
Embodiment one
As it is shown in figure 1, compressor 1 air vent is connected with oil eliminator 2 port A, oil eliminator 2 port B and the first heat exchange
One end of device 3 is connected, and the other end of First Heat Exchanger 3 is connected with the port A of economizer 5 and the one of the second throttling arrangement 4 respectively
End is connected, and the port B of economizer 5 is connected with the port A of regenerator 6, the port B of regenerator 6 and one end of first throttle device 7
Being connected, the other end of first throttle device 7 and the second heat exchanger 8 are connected, the second heat exchanger 8 the other end and regenerator 6
Port C is connected, and the port D of regenerator 6 is connected with the air entry of compressor 1；The other end of the second throttling arrangement 4 and economizer 5
Port C be connected, the port D of economizer 5 is connected with compressor 1 gas supplementing opening, formation refrigerant loop.Compressor 1 air vent with
Oil eliminator 2 port A is connected, and one end of oil eliminator 2 port C and the 3rd heat exchanger 9 is connected, the other end of the 3rd heat exchanger 9
Being connected with the port E of economizer 5, the port F of economizer 5 and one end of the 3rd throttling arrangement 10 are connected, the 3rd throttling arrangement 10
The other end be connected with the pouring orifice of compressor 1, formed oil return line.
Preferably, the pouring orifice of compressor and the same mouth that air entry is compressor of compressor.
Preferably, oily in exhaust outlet of compressor mixture (oil and cold-producing medium) mass percent is between 0%-60%.
Embodiment two
Compressor 1 air vent is connected with oil eliminator 2 port A, one end phase of oil eliminator 2 port B and First Heat Exchanger 3
Even, the other end of First Heat Exchanger 3 is connected with the port A of economizer 5 respectively and one end of the second throttling arrangement 4 is connected, economical
The port B of device 5 is connected with the port A of regenerator 6, and the port B of regenerator 6 is connected with one end of first throttle device 7, first segment
The other end and second heat exchanger 8 of stream device 7 are connected, the second heat exchanger 8 the other end be connected with the port C of regenerator 6, time
The port D of hot device 6 is connected with the air entry of compressor 1；The other end of the second throttling arrangement 4 is connected with the port C of economizer 5,
The port D of economizer 5 is connected with compressor 1 gas supplementing opening, forms refrigerant loop.Compressor 1 air vent and oil eliminator 2 port
A is connected, and one end of oil eliminator 2 port C and the 3rd heat exchanger 9 is connected, the other end of the 3rd heat exchanger 9 and the end of economizer 5
Mouth E is connected, and the port F of economizer 5 is connected with one end of the 3rd throttling arrangement 10 and one end of the 4th throttling arrangement 11 respectively, the
The other end of three throttling arrangements 10 is connected with the first pouring orifice of compressor 1, the other end of the 4th throttling arrangement 11 and compressor 1
The second pouring orifice be connected, formed oil return line.
Preferably, the first pouring orifice of compressor and the air entry of compressor are the same mouth of compressor.
Preferably, the second pouring orifice of compressor and the Gas-supplying enthalpy-increasing mouth of compressor are the same mouth of compressor.
Preferably, oily in exhaust outlet of compressor mixture (oil and cold-producing medium) mass percent is between 0%-60%.
A kind of band economizer of above example and oil cooling compression two-stage cooling cycle system, solve bigger temperature difference work
Refrigeration system delivery temperature high problem under condition, and further increase system energy by the oil cooling compression circulation of band air-breathing backheat
Effect.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not be therefore understands that be the restriction to the scope of the claims of the present invention.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (5)
1. band economizer and an oil cooling compression two-stage cooling cycle system, including compressor, oil eliminator, the first heat exchange
Device, the second heat exchanger, the 3rd heat exchanger, economizer, regenerator, first throttle device, the second throttling arrangement, the 3rd throttling dress
Put, it is characterised in that:
Exhaust outlet of compressor is connected with oil eliminator port A, and oil eliminator port B is connected with one end of First Heat Exchanger, and first
The other end of heat exchanger be connected with the port A of economizer respectively and the second throttling arrangement one end be connected, the port B of economizer with
The port A of regenerator is connected, and the port B of regenerator is connected with one end of first throttle device, the other end of first throttle device
Be connected with the second heat exchanger, the second heat exchanger the other end be connected with the port C of regenerator, the port D of regenerator and compression
The air entry of machine is connected；The other end of the second throttling arrangement is connected with the port C of economizer, the port D of economizer and compressor
Gas supplementing opening is connected, and forms refrigerant loop.
Exhaust outlet of compressor is connected with oil eliminator port A, and one end of oil eliminator port C and the 3rd heat exchanger is connected, and the 3rd
The other end of heat exchanger is connected with the port E of economizer, and the port F of economizer and one end of the 3rd throttling arrangement are connected, and the 3rd
The other end of throttling arrangement is connected with the pouring orifice of compressor, forms oil return line.
In exhaust outlet of compressor mixture (oil and cold-producing medium), the mass percent of oil is between 0%-60% and adjustable.
A kind of band economizer the most according to claim 1 and oil cooling compression two-stage cooling cycle system, it is characterised in that:
The pouring orifice of compressor and the air entry of compressor can be two independent mouths of compressor, it is preferable that the pouring orifice of compressor and
The air entry of compressor is the same mouth of compressor.
A kind of band economizer the most according to claim 1 and oil cooling compression two-stage cooling cycle system, it is characterised in that:
Also include the second oiling branch road, the port F of economizer respectively with one end and one end of the 4th throttling arrangement of the 3rd throttling arrangement
Being connected, the other end of the 3rd throttling arrangement is connected with the first pouring orifice of compressor, the other end of the 4th throttling arrangement and compression
Second pouring orifice of machine 1 is connected, it is preferable that the second pouring orifice and Gas-supplying enthalpy-increasing mouth are same mouth.
A kind of band economizer the most according to claim 1 and oil cooling compression two-stage cooling cycle system, it is characterised in that:
Throttling arrangement can be capillary tube, electric expansion valve, heating power expansion valve, injector or decompressor.
A kind of band economizer the most according to claim 1 and oil cooling compression two-stage cooling cycle system, it is characterised in that:
Compressor can be rotor-type compressor, scroll compressor or screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610364745.5A CN106052178A (en) | 2016-05-29 | 2016-05-29 | Two-stage refrigerating circulation system with economizer and oil cooling compression |
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| CN201610364745.5A CN106052178A (en) | 2016-05-29 | 2016-05-29 | Two-stage refrigerating circulation system with economizer and oil cooling compression |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224833A (en) * | 2016-12-21 | 2018-06-29 | 开利公司 | Injector refrigeration system and its control method |
| CN109357403A (en) * | 2018-10-15 | 2019-02-19 | 四川长虹电器股份有限公司 | Carbon dioxide air source water heater |
| CN111102759A (en) * | 2019-12-18 | 2020-05-05 | 南京久鼎精机冷冻设备有限公司 | Energy-saving CO2Double-machine double-stage refrigeration multi-split system |
| CN111121342A (en) * | 2019-12-31 | 2020-05-08 | 青岛海信日立空调***有限公司 | Heat pump system |
| WO2020164212A1 (en) * | 2019-02-12 | 2020-08-20 | 珠海格力电器股份有限公司 | Refrigerant circulation system and control method thereof, and air conditioner |
| CN112682986A (en) * | 2021-01-11 | 2021-04-20 | 珠海格力电器股份有限公司 | Flash type oil cooling system and control method |
| US11408647B2 (en) | 2019-02-02 | 2022-08-09 | Carrier Corporation | Enhanced thermally-driven ejector cycles |
| US11448427B2 (en) | 2019-02-02 | 2022-09-20 | Carrier Corporation | Heat-recovery-enhanced refrigeration system |
| EP4137756A4 (en) * | 2020-04-14 | 2023-08-16 | Mitsubishi Electric Corporation | Heat source unit, refrigeration cycle device, and refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108224833A (en) * | 2016-12-21 | 2018-06-29 | 开利公司 | Injector refrigeration system and its control method |
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| CN109357403A (en) * | 2018-10-15 | 2019-02-19 | 四川长虹电器股份有限公司 | Carbon dioxide air source water heater |
| US11408647B2 (en) | 2019-02-02 | 2022-08-09 | Carrier Corporation | Enhanced thermally-driven ejector cycles |
| US11448427B2 (en) | 2019-02-02 | 2022-09-20 | Carrier Corporation | Heat-recovery-enhanced refrigeration system |
| WO2020164212A1 (en) * | 2019-02-12 | 2020-08-20 | 珠海格力电器股份有限公司 | Refrigerant circulation system and control method thereof, and air conditioner |
| CN111102759A (en) * | 2019-12-18 | 2020-05-05 | 南京久鼎精机冷冻设备有限公司 | Energy-saving CO2Double-machine double-stage refrigeration multi-split system |
| CN111121342A (en) * | 2019-12-31 | 2020-05-08 | 青岛海信日立空调***有限公司 | Heat pump system |
| CN111121342B (en) * | 2019-12-31 | 2021-11-05 | 青岛海信日立空调***有限公司 | Heat pump system |
| EP4137756A4 (en) * | 2020-04-14 | 2023-08-16 | Mitsubishi Electric Corporation | Heat source unit, refrigeration cycle device, and refrigerator |
| CN112682986A (en) * | 2021-01-11 | 2021-04-20 | 珠海格力电器股份有限公司 | Flash type oil cooling system and control method |
| CN112682986B (en) * | 2021-01-11 | 2024-03-22 | 珠海格力电器股份有限公司 | Flash type oil cooling system and control method |
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Application publication date: 20161026 |