CN104848616B - Gs-oil separator in air-conditioning system - Google Patents
Gs-oil separator in air-conditioning system Download PDFInfo
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- CN104848616B CN104848616B CN201510259184.8A CN201510259184A CN104848616B CN 104848616 B CN104848616 B CN 104848616B CN 201510259184 A CN201510259184 A CN 201510259184A CN 104848616 B CN104848616 B CN 104848616B
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- Prior art keywords
- entrance
- air
- inlet
- oil separator
- conditioning system
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Classifications
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
Abstract
The invention discloses the gs-oil separator in a kind of air-conditioning system, the technical problem to be solved is to reduce gs-oil separator pressure drop, improves the efficiency of air-conditioning equipment.The present invention uses following technical scheme：A kind of gs-oil separator in air-conditioning system, cylinder top is provided with the entrance of the fluid-mixing of gaseous coolant and oil, the entrance is to be connected with straight tube entrance on cylinder top, the initiating terminal of the accelerating inlet of the end connection tubulose that entrance is put in cylinder, the end of accelerating inlet is connected with the entrance guiding plate of arcuation.The present invention is compared with prior art, using the structure of entrance, accelerating inlet and entrance guiding plate, after lubricating oil enters with the air-fuel mixture fluid of gaseous coolant from entrance, it is not forced to turn back with the direct collision of gs-oil separator internal structure, so that the pressure drop of gs-oil separator reduces, in the case where separative efficiency is suitable, voltage drop value reduces 10~50%, improves the efficiency of air-conditioning equipment.
Description
Technical field
The present invention relates to a kind of air-conditioning equipment, the separation equipment of particularly a kind of lubricating oil of air-conditioning equipment and refrigerant.
Background technology
Lubricating oil is taken with the discharge of refrigerant (refrigerant) within the compressor.Lubricating oil is mixed with the oil gas of refrigerant
If compound can reduce the biography of heat exchanger without gs-oil separator (oil) or by separative efficiency gs-oil separator not high
Thermal effect, reduces refrigerating efficiency.If lubricating oil does not return to compressor in time, also result in compressor lubrication it is bad reduce its
Service life.Gs-oil separator is divided into horizontal and vertical in structure.Wherein, vertical oil separator is more with centrifugal separation, due to
Lubricating oil centrifugation power in gas mixture is more than gaseous refrigerant centrifugal force so that lubricating oil is separated with refrigerant.Existing skill
As depicted in figs. 1 and 2, entrance 1 is arranged on and inlet baffle 2 is provided with the top of cylinder 3, entrance 1 the oil structure of art, entrance gear
Between cylinder 3 and inner barrel 4, cylinder 3 is arranged on the top of inner barrel 4 to plate 2, and it is coaxial with inner barrel 4, and the top of inner barrel 4 sets
There is gaseous coolant outlet 6, the bottom of cylinder 3 is provided with oil export 5.Separation process is：The air-fuel mixture stream of lubricating oil and gaseous coolant
Body enters from the entrance 1 of oil, is first collided with inlet baffle 2, then collides the outer wall of inner barrel 4, is then transported in the inward turning of cylinder 3
Dynamic, last gaseous refrigerant leaves gs-oil separator from gaseous coolant outlet 6, and lubricating oil leaves gs-oil separator from oil export 5.
In separation process, gaseous refrigerant and lubricating oil are turned back by forcing twice, and the pressure loss is larger, cause the work(of air-conditioning equipment
Rate is raised, and efficiency declines.
The content of the invention
It is an object of the invention to provide the gs-oil separator in a kind of air-conditioning system, the technical problem to be solved is to reduce oil
Gas separating device pressure drop, improves the efficiency of air-conditioning equipment.
The present invention uses following technical scheme：A kind of gs-oil separator in air-conditioning system, it is cold that cylinder top is provided with gaseous state
The entrance of the fluid-mixing of matchmaker and oil, the entrance is to be connected with straight tube entrance on cylinder top, and entrance is put in cylinder
End connection tubulose accelerating inlet initiating terminal, the end of accelerating inlet is connected with the entrance guiding plate of arcuation.
The outer end end connection of entrance of the invention has inlet flange.
The outer face of inlet flange of the invention is parallel with the distal end faces of accelerating inlet.
Angle between the axis of entrance of the invention and the outer face of inlet flangeFor：
Accelerating inlet of the invention is conical pipe, and cross section is ellipse, and its tube wall is shaped as inwardly axial section
Convex, the initiating terminal of accelerating inlet is circular big end, and end is oval small end, the initiating terminal end face of accelerating inlet with
The angle theta of the outer face of inlet flange is：0 ° of 45 ° of ＜ θ ＜.
Accelerating inlet of the invention is vertical for the major axis of non-circular cross-section.
The terminus area of accelerating inlet of the invention is 0.5~0.7 times of initial end area, and ratio of semi-minor axis length is 1.5
~3.
Entrance guiding plate of the invention is arranged in cylinder along cylinder inboard wall, and arcuation is in spiral of Archimedes shape, the number of turns
It is 0.3~1.
Height of the height of entrance guiding plate of the invention more than accelerating inlet end.
The present invention compared with prior art, using the structure of entrance, accelerating inlet and entrance guiding plate, lubricating oil with
The air-fuel mixture fluid of gaseous coolant from entrance entrance after, not with the direct collision of gs-oil separator internal structure and be forced folding
Turn so that the pressure drop of gs-oil separator reduces, in the case where separative efficiency is suitable, voltage drop value reduces 10~50%, improves
The efficiency of air-conditioning equipment.
Brief description of the drawings
The centrifugal oil-air separator structural representation of Fig. 1 prior arts.
Fig. 2 is the vertical view rotation figure of Fig. 1.
Fig. 3 is centrifugal oil-air separator structural representation of the invention.
Fig. 4 is entrance guiding plate structure schematic diagram of the invention.
Fig. 5 is the entrance emulation motion pattern of prior art.
Fig. 6 is entrance emulation motion pattern of the invention.
Fig. 7 is the inlet flow rate and pressure drop comparison diagram of the present invention and prior art.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.As shown in figure 3, air-conditioning system of the invention
Gs-oil separator in system, is vertical structure, is provided with vertical cylinder 3, and cylinder 3 is coaxially arranged with inner barrel 4, inner cylinder in top
It is provided with mouth on the side wall of body 4, the top of inner barrel 4 and cylinder 3 is provided with gaseous coolant outlet 6, gaseous coolant outlet 6 and inner barrel
4 is coaxial, and oil export 5 is set in the bottom of cylinder 3, and the axis of oil export 5 is vertical with the axis of cylinder 3.The side wall on the top of cylinder 3 is provided with
Opening, the height of opening is located at the middle part of the height of inner barrel 4, the entrance of the fluid-mixing for setting gaseous coolant and oil.
The entrance of the fluid-mixing of gaseous coolant and oil is provided with the upper portion side wall of cylinder 3, the structure of the entrance is：Cylinder 3
The opening of upper portion side wall is connected with entrance 7, and entrance 7 is one section straight less than inner barrel 4 through the tube wall of cylinder 3, its diameter
Pipe, the initiating terminal of the accelerating inlet 9 of the end connection tubulose that entrance 7 is put in cylinder 3, the end of accelerating inlet 9 connects
It is connected to the entrance guiding plate 10 of arcuation.The part that entrance 7 is put in cylinder 3 is less than cylinder with the length sum of accelerating inlet 9
0.5 times of internal diameter of body 3, the end that entrance 7 is put in cylinder 3 is connected near the wall side of cylinder 3 with the opening of cylinder 3.
The outer end end connection of entrance 7 has inlet flange 8, the outer face of inlet flange 8 and the outer end end of oil export 5
Face, accelerating inlet 9 distal end faces it is parallel.
Between entrance 7 puts in the end of cylinder 3 in cylinder 3 and outside inner barrel 4, the axis and entrance of entrance 7
Angle between the outer face of flange 8For：
Accelerating inlet 9 is one section of conical pipe, and cross section is ellipse, and vertically, its tube wall is in axial section for oval major axis
Be shaped as to convex, convex portion is formed streamlined towards the axis of pipe.The initiating terminal of accelerating inlet 9 is circular big end, with
Entrance 7 is connected, and the end of accelerating inlet 9 is oval small end, the initiating terminal of connection entrance guiding plate 10.It is entry accelerated
Section 9 initiating terminal end face be with the angle theta of the outer face of inlet flange 8：0 ° of 45 ° of ＜ θ ＜.The terminus area of accelerating inlet 9
It it is 0.5~0.7 times of initial end area, ratio of semi-minor axis length is 1.5~3.
Entrance guiding plate 10 is arranged in cylinder 3 along the inwall of cylinder 3, and arcuation is in spiral of Archimedes shape, and the number of turns is 0.3
~1, as shown in figure 4, height L1s of the height L of entrance guiding plate 10 more than the end of accelerating inlet 9.The height of entrance guiding plate 10
Degree L is 1.2~3 times of internal diameter d of entrance 7, and the height L1 of accelerating inlet 9 is (0.4~1) L.
Inlet flange 8 is connected with the blast pipe of compressor.
When gs-oil separator in air-conditioning system of the invention works, fluid-mixing (the refrigerant mistake of gaseous coolant and oil
The mixture of hot gas and lubricating oil liquid) ejected by after blast pipe, passing sequentially through inlet flange 8, entrance from compressor
Section 7, after accelerating inlet 9 is accelerated, motion of being spinned between inner barrel 4 and entrance guiding plate 10, part oil droplet because
For centrifugal force is separated, meanwhile, mixture is by the rectification of entrance guiding plate 10, and motion of being spinned in cylinder 3 afterwards is big absolutely
Part oil droplet is separated, and the oil droplet of whereabouts outflows back to compressor from oil export 5, and refrigerant gas are then through the side of inner barrel 4
The opening of wall rises after entering inner barrel 4, is discharged from gaseous coolant outlet 6, enters into condenser.
In the present embodiment, physical dimension is：
Angle between the axis of entrance 7 and the outer face of inlet flange 8For：85°.
The initiating terminal end face of accelerating inlet 9 is with the angle theta of the outer face of inlet flange 8：15°.
The a diameter of 65mm of initiating terminal of accelerating inlet 9, the terminus area of accelerating inlet 9 is the 0.6 of initial end area
Times.
The number of turns of entrance guiding plate 10 is 0.25, and height L is 100mm for accelerating inlet 10 vertical extension L1+20mm, L1,
The internal diameter d of entrance 7 is 65mm.
Comparative example is identical with embodiment using cylinder 3, inner barrel 4, gaseous coolant outlet 6 and the size of oil export 5, structure
The refrigerating equipment corporation, Ltd of Yangzhou 10,000 YF45 type gs-oil separators.
Using Ansys Fluent fluid emulations softwares to embodiment and the gs-oil separator modeling and simulating of comparative example.Entering
Mouth speed is respectively in the case of 4m/s, 10m/s and 21m/s, and the entrance of the fluid-mixing of monitoring gaseous coolant and oil is cold with gaseous state
The pressure of matchmaker's outlet 6, the pressure of entrance is subtracted the pressure of outlet, and the difference for obtaining is pressure drop, embodiment and comparative example it is mixed
Compound pressure drop is shown in Table 1.The simulation result of embodiment and comparative example is depicted as inlet flow rate and pressure drop comparison diagram, as shown in fig. 7,
Contrasted by embodiment and comparative example, illustrate that the gs-oil separator in air-conditioning system of the invention has obvious reduction voltage drop value
Technique effect.
The embodiment of table 1 and comparative example entrance and exit pressure drop simulation result
As shown in Figure 5 and Figure 6, embodiment and comparative example are emulated with Ansys Fluent fluid emulations softwares.Using K- ε
Turbulence model, DPM Discrete Phase Models, entrance velocity is 10m/s, is emulated, and obtains motion pattern.As shown in figure 5, prior art
The fluid-mixing (refrigerant and oil mixture) of the gaseous coolant of oil and oil is collided on inlet baffle, flow direction change compared with
Greatly, therefore the pressure loss is larger.As shown in fig. 6, the flow direction of oil of the present invention changes smaller, so that pressure drop is relatively small.
Also illustrated by above-mentioned emulation, in the case where separative efficiency is suitable, the present invention compared with the prior art, voltage drop value meeting
Reduce 10~50%.
0 ° of 45 ° of ＜ θ ＜, is to meet the installation requirement of entrance 9.
The terminus area of accelerating inlet 9 is 0.5~0.7 times of initial end area, accelerating inlet 9 export it is smaller can be with
Fluid-mixing speed is improved, speed is relatively low to cause the separative efficiency to reduce.Entrance velocity requirement of the vertical oil separator to fluid-mixing
It is 5~30m/s, the entrance velocity of the refrigeration system of different refrigerants is different, such as R134a refrigeration systems different load
Under entrance velocity scope be 4~20m/s, preferably choose 0.7；R407C refrigeration system different load lower inlet velocity intervals are 2.8
~14.5m/s, therefore choose 0.56.
Ratio of semi-minor axis length is 1.5~3, is to consider structure and space requirement.Due to rising for entrance 7 and accelerating inlet 9
Top is relatively large in diameter, and inner barrel 4 is typically small to the distance of cylinder 3, therefore considers installation dimension, and the length of short axle is smaller.
The height L of entrance guiding plate 10 is more than the height L1 of accelerating inlet 9, is to ensure to be flowed out from accelerating inlet 9
Fluid can all by the water conservancy diversion of entrance guiding plate 10.The height L of entrance guiding plate 10 is more than diameter d, it is to avoid fluid is in stream
Disperseed during dynamic.
The number of turns of entrance guiding plate 10 is 0.3~1, and 0.3 circle is at least needed in order to reach guide functions, and after being enclosed more than 1,
Guide functions DeGrain.
Claims (8)
1. a kind of gs-oil separator in air-conditioning system, cylinder (3) top is provided with the entrance of the fluid-mixing of gaseous coolant and oil,
Entrance is to be connected with straight tube entrance (7) on cylinder (3) top, the end connection tubulose that entrance (7) is put in cylinder (3)
The initiating terminal of accelerating inlet (9), it is characterised in that：The end of the accelerating inlet (9) is connected with the entrance guiding of arcuation
Plate (10), entrance guiding plate (10) is arranged in cylinder (3) along cylinder (3) inwall, and arcuation is in spiral of Archimedes shape, the number of turns
It is 0.3~1.
2. the gs-oil separator in air-conditioning system according to claim 1, it is characterised in that：Outside the entrance (7)
The connection of end end has inlet flange (8).
3. the gs-oil separator in air-conditioning system according to claim 2, it is characterised in that：The inlet flange (8)
Outer face is parallel with the distal end faces of accelerating inlet (9).
4. the gs-oil separator in air-conditioning system according to claim 3, it is characterised in that：The axle of the entrance (7)
Angle between the outer face of line and inlet flange (8)For：
5. the gs-oil separator in air-conditioning system according to claim 4, it is characterised in that：The accelerating inlet (9)
It is conical pipe, cross section is ellipse, and its tube wall is shaped as to convex axial section, and the initiating terminal of accelerating inlet (9) is
Circular big end, end is oval small end, the initiating terminal end face of accelerating inlet (9) and the outer face of inlet flange (8)
Angle theta be：0 ° of 45 ° of ＜ θ ＜.
6. the gs-oil separator in air-conditioning system according to claim 5, it is characterised in that：The accelerating inlet (9)
Cross section is ellipse, and oval major axis is vertical.
7. the gs-oil separator in air-conditioning system according to claim 6, it is characterised in that：The accelerating inlet (9)
Terminus area be 0.5~0.7 times of initial end area, ratio of semi-minor axis length is 1.5~3.
8. the gs-oil separator in air-conditioning system according to claim 7, it is characterised in that：The entrance guiding plate (10)
Height more than accelerating inlet (9) end height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259184.8A CN104848616B (en) | 2015-05-20 | 2015-05-20 | Gs-oil separator in air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259184.8A CN104848616B (en) | 2015-05-20 | 2015-05-20 | Gs-oil separator in air-conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN104848616A CN104848616A (en) | 2015-08-19 |
| CN104848616B true CN104848616B (en) | 2017-06-30 |
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ID=53848453
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510259184.8A Active CN104848616B (en) | 2015-05-20 | 2015-05-20 | Gs-oil separator in air-conditioning system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484973B (en) * | 2015-10-09 | 2017-12-08 | 西安交通大学 | A kind of cyclone type oil-gas separator |
| CN114109325B (en) * | 2021-11-22 | 2023-05-16 | 西南石油大学 | Gas well gas-increasing and gas-lifting speed-increasing and water atomization device |
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| JP2000249431A (en) * | 1999-02-25 | 2000-09-14 | Mitsubishi Heavy Ind Ltd | Oil separator |
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| CN102553359A (en) * | 2010-12-17 | 2012-07-11 | 株式会社神户制钢所 | Oil separator |
| CN103851843A (en) * | 2012-12-05 | 2014-06-11 | 日冷工业株式会社 | Gas-liquid separator, cooling device equipped therewith and vapor circulating device |
| CN204757485U (en) * | 2015-05-20 | 2015-11-11 | 深圳麦克维尔空调有限公司 | Oil and gas separator among air conditioning system |
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2015
- 2015-05-20 CN CN201510259184.8A patent/CN104848616B/en active Active
Patent Citations (12)
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|---|---|---|---|---|
| JP2830615B2 (en) * | 1992-03-09 | 1998-12-02 | ダイキン工業株式会社 | Centrifugal oil separator |
| JPH05296610A (en) * | 1992-04-13 | 1993-11-09 | Daikin Ind Ltd | Centrifugal oil separator |
| JP2000249431A (en) * | 1999-02-25 | 2000-09-14 | Mitsubishi Heavy Ind Ltd | Oil separator |
| JP2005344960A (en) * | 2004-06-01 | 2005-12-15 | Matsushita Electric Ind Co Ltd | Oil separator |
| CN1877230A (en) * | 2005-06-10 | 2006-12-13 | 三星电子株式会社 | Oil separator for air conditioner |
| JP2008045763A (en) * | 2006-08-10 | 2008-02-28 | Denso Corp | Oil separator |
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| CN104848616A (en) | 2015-08-19 |
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