CN107044414A - A kind of scroll compressor and its lubricating oil separation method with oil separating structure - Google Patents
A kind of scroll compressor and its lubricating oil separation method with oil separating structure Download PDFInfo
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- CN107044414A CN107044414A CN201610079685.2A CN201610079685A CN107044414A CN 107044414 A CN107044414 A CN 107044414A CN 201610079685 A CN201610079685 A CN 201610079685A CN 107044414 A CN107044414 A CN 107044414A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/18—Pressure
- F04C2270/185—Controlled or regulated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A kind of scroll compressor with oil separating structure, including cylinder body (1), main shaft (4), dynamic and static whirlpool disk (6,7), cylinder body bonnet (10) is connected to cylinder body, back pressure cavity (9) is constituted in dynamic and static whirlpool disk and main shaft side, opposite side constitutes high pressure chest (101)；Fixed scroll is provided with steam vent (71), the retractable hole of exhaust valve plate (12)；Bonnet also includes oily disengagement chamber (102), its passage covered after (103) is connected with high pressure chest, wherein there is oil eliminator (13), bonnet also has shoe cream room (104), it is connected by the high-pressure inlet (105) of bonnet with oily disengagement chamber, and the drainback passage (72) through fixed scroll is connected with back pressure cavity；Also include the pressure relief mechanism (14) with pressure release passage (73) and low pressure chamber (106), low pressure chamber is connected by pressure release passage with back pressure cavity.The compressor can avoid causing failure because lubricating oil is lost in, and keep the even running of compressor, improve service life.The application further relates to oil separating method.
Description
Technical field
The present invention relates to automobile air conditioning refrigerating system device, more particularly, to the scroll compressor with oil separating structure, also specifically it is related to the method for separation lubrication oil in the scroll compressor.
Background technology
Scroll compressor, such as electric scroll formula compressor are widely used in new-energy automotive air-conditioning refrigeration system, the advantages of it is with volumetric efficiency height, small vibration, small volume；But in actual use, the inner body wear phenomenon that the reason such as compressor oil return is bad is caused is more obvious so that hydraulic performance decline, service life reduction.
For this reason it has already been proposed that a kind of scheme that oil eliminator is placed in compressor bonnet steam vent, for reclaiming the lubricating oil for being blended in refrigerant；But fully can not be separated lubricating oil from refrigerant in the program, therefore still there is most lubricating oil to be lost in from system.For another example, a kind of prior art propose it is a kind of can on one's own initiative separation lubrication oil scroll compressor, as shown in Figure 1, scroll compressor of automobile air conditioner oil separating mechanism includes the high pressure chest A being made up of screw compressor fixed scroll and a bonnet part, the disengagement chamber B connected by the first hole 2 with high pressure chest A, separator B is communicated by the second hole 4 with shoe cream room C, shoe cream room C is communicated by bottom stria with fixed scroll rear end face annular groove 5, annular groove is communicated by pore 1 with air admission hole 7, interference is provided with a separating core 3 in disengagement chamber B, the end that disengagement chamber B is located at the top of separating core 3 is steam vent 8, the center line for the annular space that the wall of the central axis in the first hole 2 and disengagement chamber B wall and separating core 3 is constituted is tangent.By this structure, after refrigeration oil and the mixture of compression refrigerant are discharged into high pressure chest A from fixed scroll base apertures 6, again due to refrigeration oil in mixture and the adhesive ability difference of refrigerant, promote refrigeration oil to flow downstream into the second hole 4 along disengagement chamber B cavity walls and enter shoe cream room C, enter back into annular groove 5, because shoe cream room C pressure is higher than air inlet pore pressure force, so that refrigeration oil rises to top from annular groove bottom enters air admission hole by pore 1 again, it is thusly-formed an oil circulation, so as to reduce the loss of oil, the lubricant effect of compressor itself is enhanced.
But, in the prior art, as the oily thin pore of crossing after separation is again continuously into air admission hole, the pressure that oil after separation is built up can be gradually by increase, excessive pressure increase can make friction increase between the dynamic and static whirlpool disk of compressor, and refrigeration is had influence on, or even reduce the service life of compressor.
The problem above existed by prior art, this area needs a kind of method for proposing scroll compressor and its separation lubrication oil with oil separating structure badly, to overcome the problem of prior art is foregoing.
The content of the invention
It is an object of the invention to provide a kind of scroll compressor with oil separating structure, compressor can be avoided to cause failure due to the loss of lubricating oil, keep the even running of compressor, improve the service life of compressor.
Present invention also offers a kind of method of separation lubrication in scroll compressor oil, by this method, it can not only prevent lubricating oil to be lost in and cause the excessive wears of compressor inner components, but also the stationarity of compressor operating can be improved, improve the service life of compressor.
To achieve the above object, the invention provides a kind of scroll compressor with oil separating structure, including cylinder body, the main shaft driven by drive device, the movable orbiting scroll that is rotated from the main shaft drives and with the fixed scroll with the movable orbiting scroll, one cylinder body bonnet is connected to the cylinder body, and a back pressure cavity is constituted in the dynamic and static whirlpool disk of the cooperation and the main shaft side, and a high pressure chest is constituted in the dynamic and static whirlpool disk of the cooperation and the cylinder body bonnet side；Wherein, the fixed scroll is provided with steam vent, and exhaust valve plate is connected in the fixed scroll and can close or open the steam vent, and the fixed scroll is additionally provided with drainback passage；The cylinder body bonnet also includes an oily disengagement chamber, and the oily disengagement chamber is connected by covering set passage after the cylinder body with the high pressure chest；An oil eliminator is provided with the oily disengagement chamber, a shoe cream room is additionally provided with the cylinder body bonnet, on the one hand the shoe cream room is connected by the high-pressure inlet covered after the cylinder body with the oily disengagement chamber, is on the other hand connected by the drainback passage with the back pressure cavity；Wherein, the scroll compressor also includes pressure relief mechanism, and the pressure relief mechanism includes being opened in the pressure release passage of the fixed scroll and the low pressure chamber being arranged in the cylinder body bonnet, and the low pressure chamber is connected by the pressure release passage with the back pressure cavity.
It is preferred that the pressure relief mechanism includes the steel ball being arranged in the pressure release passage, the steel ball is fixed on one end of a spring, and the other end of the spring connects a plug, and the plug is fixed in the pressure release passage；Also include the lateral access that can be blocked by the steel ball of its one end, its other end is to the low pressure chamber opening.
It is preferred that the pressure relief mechanism includes throttle pipe, the throttle pipe is in the pressure release passage of the fixed scroll.
It is preferred that the throttle pipe is capillary.
It is preferred that the oil eliminator is in integrally frusto-conical shape, its outer wall is smooth.
It is preferred that the exhaust valve plate is fin.
It is preferred that selecting the size of the spring or the throttle pipe according to default pressure protection value.
It is preferred that on the position that the shoe cream room is disposed below relative to the oily disengagement chamber.
It is preferred that the high pressure gas from the back pressure cavity be compression after refrigerant and lubricating oil mixture.
It is preferred that being additionally provided with main shaft support seat on the main shaft, the space between the main shaft support seat and the movable orbiting scroll constitutes the back pressure cavity.
By the scroll compressor with oil separating structure of the present invention, compared with prior art, the scroll compressor of the present invention can reduce the loss of lubricating oil, therefore parts too early, excessive wear caused by lubricating oil is lost in is not resulted in, and using pressure relief mechanism the pressure in back pressure cavity can be made to remain under the conditions of safe pressure value, and avoid because frictional force is excessive between the dynamic and static whirlpool disk caused by hypertonia, so as to extend the service life of compressor.
Another aspect of the present invention further relates to a kind of method of the oil of the separation lubrication in scroll compressor, a kind of scroll compressor with oil separating structure, including cylinder body, the main shaft driven by drive device, the movable orbiting scroll that is rotated from the main shaft drives and with the fixed scroll with the movable orbiting scroll, one cylinder body bonnet is connected to the cylinder body, a back pressure cavity is constituted in the dynamic and static whirlpool disk of the cooperation and the main shaft side, a high pressure chest is constituted in the dynamic and static whirlpool disk of the cooperation and the cylinder body bonnet side；Wherein, the fixed scroll is provided with steam vent, and exhaust valve plate is connected in the fixed scroll and can close or open the steam vent, and the fixed scroll is additionally provided with drainback passage；The cylinder body bonnet also includes an oily disengagement chamber, and the oily disengagement chamber is connected by covering set passage after the cylinder body with the high pressure chest；An oil eliminator is provided with the oily disengagement chamber, a shoe cream room is additionally provided with the cylinder body bonnet, on the one hand the shoe cream room is connected by the high-pressure inlet covered after the cylinder body with the oily disengagement chamber, is on the other hand connected by the drainback passage with the back pressure cavity；Wherein, the scroll compressor also includes pressure relief mechanism, and the pressure relief mechanism includes being opened in the pressure release passage of the fixed scroll and the low pressure chamber being arranged in the cylinder body bonnet, and the low pressure chamber is connected by the pressure release passage with the back pressure cavity；Methods described comprises the following steps：The main shaft drives the movable orbiting scroll to rotate, and the high pressure gas between the dynamic and static disk enters the high pressure chest from the back pressure cavity by the steam vent, the exhaust valve plate；The high pressure gas enters the oily disengagement chamber by the passage and hits the outer wall of the oil eliminator, and under the action of the centrifugal force, lubricating oil is separated from high pressure gas；The lubricating oil of separation oil separation bottom of chamber portion because Action of Gravity Field drops to, enters the shoe cream room, and be back to the back pressure cavity by the drainback passage through the high-pressure inlet；Wherein, when the pressure of the back pressure cavity is more than default pressure protection value, a part of gases at high pressure of the back pressure cavity enter the low pressure chamber by the pressure relief mechanism, until the back pressure cavity is less than or equal to the default pressure protection value.
Brief description of the drawings
Illustrate embodiment of the present invention referring now to the following drawings, in the accompanying drawings：
Fig. 1 shows a kind of section view of the scroll compressor with oil separating structure of prior art；
Fig. 2 shows the section view of scroll compressor one embodiment of the present invention with oil separating structure；
Fig. 3 is the enlarged drawing of part A in Fig. 2；
Fig. 4 is the partial view of scroll compressor another embodiment of the present invention with oil separating structure, and the view is corresponding with part A in Fig. 2；And
Fig. 5 is the sectional view for showing the oil eliminator employed in the embodiment of the present invention.
Embodiment
As shown in Figure 2, the embodiment of scroll compressor one with oil separating structure proposed by the invention is shown in figure, the scroll compressor, e.g. electric scroll formula compressor includes cylinder body 1, stator 2 in cylinder body, which is powered, produces magnetic field, the main shaft 4 for promoting rotor 3 and being connected on rotor 3 is rotated, and then band dynamic bearing 5 makes the concomitant rotation of movable orbiting scroll 6 to main shaft 4, and the cooperation of the stator 2 and rotor 3 constitutes the drive device of main shaft 4.Fixed scroll 7 coordinates with movable orbiting scroll 6.Between the stator 2 and rotor 3 of cooperation and the movable orbiting scroll 6 and fixed scroll 7 of cooperation, main shaft 1 also extends through main shaft support seat 8, and the space between the support base 8 and movable orbiting scroll 6 constitutes a back pressure cavity 9.One cylinder body bonnet 10 is connected on cylinder body 1 and positioned at the movable orbiting scroll 6 and that side of the fixed scroll 7 of fixed scroll 7 coordinated, in this side, cylinder body bonnet 10 includes a high pressure chest 101.Fixed scroll 7 is provided with a steam vent 71, and exhaust valve plate 12 is connected in fixed scroll 7 and can close or open steam vent 71.
The cylinder body bonnet 10 also includes an oily disengagement chamber 102, and the oily disengagement chamber 102 is connected by passage 103 with high pressure chest 101.An oil eliminator 13 is provided with oily disengagement chamber 102.A shoe cream room 104 is additionally provided with cylinder body bonnet 10, on the position that the shoe cream room 104 is disposed below relative to oily disengagement chamber 102, and is connected by a high-pressure inlet 105.In the present embodiment, a drainback passage 72 is additionally provided with fixed scroll 7, by the drainback passage 72, shoe cream room 104 is connected with back pressure cavity 9.
When working rotor, main shaft 4 drives movable orbiting scroll 6 to rotate, make dynamic and static whirlpool disk 6 because movable orbiting scroll 6 is rotated, internal pressure increase between 7, the exhaust valve plate 12 that high pressure gas is connected to thereon by the steam vent 71 in fixed scroll 7 is opened, high pressure gas (mixture of refrigerant and lubricating oil after compression) enters in high pressure chest 101, then is entered by passage 103 in oily disengagement chamber 102.High pressure gas is impinged upon on the outer wall of oil eliminator 13 (its concrete structure will be described below), and the centrifugal action of generation makes lubricating oil in high pressure gas be separated out from air-flow, on the outer wall for sticking to oil eliminator 13.Under gravity, oil flows downwardly into the bottom of oily disengagement chamber 102.In this place, by high-pressure inlet 104, into shoe cream room 104；Then, back pressure cavity 9 is returned to by the drainback passage 72 being opened in fixed scroll 7.In back pressure cavity 9, the lubricating oil of backflow can continue to be lubricated bearing 5, main shaft 4 and the grade parts of dynamic and static whirlpool disk 6,7, while also acting as antirust, cooling, forming the effect such as oil sealing.In addition, refrigerant gas of the high pressure gas after oil separation then enters condenser (not shown) by exhaust outlet under " oil-free " state.
According to the present invention, when lubricating oil returns to back pressure cavity 9, with there is partial high pressure gas to be returned to oil in back pressure cavity 9, therefore, it is intended that being merged with the gas of high pressure chest 101 with the gas of back pressure cavity 9, the pressure that on the one hand this fusion helps to make in back pressure cavity 9 increases, increased pressure can correct compressor in the process of running because air pressure is unstable and tends to make the inclined phenomenon of movable orbiting scroll 6, make the held stationary in rotation process of movable orbiting scroll 6.On the other hand, as understood by the skilled person, service life is reduced when the excessive increase of this pressure may cause the axial rub resistance of dynamic and static whirlpool disk excessive.Therefore, in the present invention, as shown in Fig. 2, Fig. 3 and 4 partial enlarged drawing, the invention provides pressure relief mechanism 14.As illustrated, the pressure relief mechanism 14, which is included in fixed scroll 7, offers pressure release passage 73, while in cylinder body bonnet 10 sets a low pressure chamber 106 again, the low pressure chamber 106 is connected by pressure release passage 73 with back pressure cavity 9.
Fig. 3 and 4 is the partial enlarged drawing of pressure relief mechanism 14 respectively, and the embodiment shown in Fig. 3 is also shown in fig. 2, and Fig. 4 is then another embodiment.
Again as shown in figure 3, the pressure relief mechanism 14 includes the steel ball 16 being arranged in pressure release passage 73, the steel ball 16 is fixed on one end of a spring 17, and the other end of spring 17 connects a plug 18, and the plug 18 is fixed in pressure release passage 73.The pressure relief mechanism 14 also includes the lateral access 19 that its one end can be blocked by steel ball 16, and the other end is open to low pressure chamber 106.When the pressure of back pressure cavity 9 is less than setting protection value, because steel ball 16 is resisted against the one end of lateral access 19 by the effect of spring 17, the pressure release passage 73 connected with back pressure cavity 9 is blocked；When the pressure of back pressure cavity 9 is more than setting protection value; pressure push the spring 17 shrinks back and (turned left in figure); because plug 18 in the position of pressure release passage 73 is fixed; steel ball 16 is then driven by spring 17 and shunk back together; open certain gap and connected with the pressure release passage 73 of the side of back pressure cavity 9 in one end of the so original lateral access 19 blocked by steel ball 16; so as to which the refrigerant gas of hypertonia in back pressure cavity can flow to low pressure chamber 106 by the gap, lateral access, so as to play a part of reducing the pressure of back pressure cavity 9；The pressure of back pressure cavity 9 declines, and compressor gas completes a working cycle process, and so repeatedly.In this embodiment, the size of spring can be selected according to predetermined pressure protection value.
In addition; again as shown in figure 4, pressure relief device of the present invention 14 can use the form of throttle pipe 15 in another embodiment, the throttle pipe 17 is in the pressure release passage 73 in fixed scroll 7; the throttle pipe 15 can be capillary, and the internal diameter of capillary can be determined by the pressure protection value set.The example structure is simple, and parts are few.
Gas into low pressure chamber 106 can again be sucked to be compressed between dynamic and static whirlpool disk and is then exhausted from.
Again as shown in figure 5, showing the oil eliminator 13 employed in various embodiments of the present invention in figure, the overall oil eliminator 13 is in frusto-conical shape, and its outer wall is smooth.The mixture high-speed impact of refrigerant (gases at high pressure) and lubricating oil oil eliminator outer wall after compression, under the influence of centrifugal force, gas and oil separation；Another part gas and oil mixture rises after being hit in first time, impinges upon the outer wall chamfered portion of oil eliminator 13, occurs second of gas and oil separation；After Oil-gas Separation, due to weight effect, separated oil sinks down into the bottom of disengagement chamber 102.
A kind of method of the oil of the separation lubrication in scroll compressor is additionally provided in the present invention, wherein, methods described comprises the following steps：
The main shaft 4 drives the movable orbiting scroll 6 to rotate, and the high pressure gas between the dynamic and static disk 6,7 enters the high pressure chest 101 from the back pressure cavity 9 by the steam vent 71, the exhaust valve plate 12；
The high pressure gas enters the oily disengagement chamber 102 by the passage 103 and hits the outer wall of the oil eliminator 13, and under the action of the centrifugal force, lubricating oil is separated from high pressure gas；
The lubricating oil of separation oily bottom of disengagement chamber 102 because Action of Gravity Field drops to, enters the shoe cream room 104, and be back to the back pressure cavity 9 by the drainback passage 72 through the high-pressure inlet 105；
Wherein, when the pressure of the back pressure cavity 9 is more than default pressure protection value, a part of gases at high pressure of the back pressure cavity 9 enter the low pressure chamber 106 by the pressure relief mechanism 14, until the back pressure cavity 9 is less than or equal to the default pressure protection value.So far, compressor gas completes a working cycle process, and so on.
The design of the present invention is explained in detail above in association with specific preferred embodiment; but for those of ordinary skills; further modifications and variations in the range of present inventive concept will be it is to be understood that these modification and variation be all fallen within the protection domain of appended claims.
Claims (11)
1. a kind of scroll compressor with oil separating structure, including cylinder body (1), by drive device
The main shaft (4) of driving, the movable orbiting scroll (6) rotated is driven by the main shaft (4) and is moved with described
The fixed scroll (7) that whirlpool disk (6) coordinates, a cylinder body bonnet (10) is connected to the cylinder body (1),
A back pressure cavity (9) is constituted in the dynamic and static whirlpool disk (6,7) of the cooperation and the main shaft (4) side,
A high pressure is constituted in the dynamic and static whirlpool disk (6,7) of the cooperation and the cylinder body bonnet (10) side
Chamber (101)；
Wherein, the fixed scroll (7) is provided with steam vent (71), and exhaust valve plate (12) is connected to
On the fixed scroll (7) and it can close or open the steam vent (71), the fixed scroll (7)
It is additionally provided with drainback passage (72)；The cylinder body bonnet (10) also includes an oily disengagement chamber (102),
The oily disengagement chamber (102) by passage (103) set on the cylinder body bonnet (10) with
High pressure chest (101) connection；An oil eliminator (13) is provided with the oily disengagement chamber (102),
A shoe cream room (104), the shoe cream room (104) one are additionally provided with the cylinder body bonnet (10)
Aspect after the cylinder body by covering the high-pressure inlet (105) of (10) and the oily disengagement chamber
(102) connect, on the other hand connected by the drainback passage (72) with the back pressure cavity (9)；
Wherein, the scroll compressor also includes pressure relief mechanism (14), and the pressure relief mechanism includes opening
Located at the fixed scroll (7) pressure release passage (73) and be arranged in the cylinder body bonnet (10)
A low pressure chamber (106), the low pressure chamber (106) by the pressure release passage (73) with it is described
Back pressure cavity (9) is connected.
2. there is the scroll compressor of oil separating structure as claimed in claim 1, it is characterised in that
The pressure relief mechanism (14) includes the steel ball (16) being arranged in the pressure release passage (73), institute
State one end that steel ball (16) is fixed on a spring (17), the other end connection of the spring (17)
One plug (18), the plug (18) is fixed in the pressure release passage (73)；Also include it
The lateral access (19) that one end can be blocked by the steel ball (16), its other end is to the low pressure chamber
(106) it is open.
3. there is the scroll compressor of oil separating structure as claimed in claim 1, it is characterised in that
The pressure relief mechanism (14) includes throttle pipe (19), and the throttle pipe (19) is located at the quiet whirlpool
In the pressure release passage (73) of disk (7).
4. there is the scroll compressor of oil separating structure as claimed in claim 3, it is characterised in that
The throttle pipe (19) is capillary.
5. there is the scroll compressor of oil separating structure as claimed in claim 1, it is characterised in that
The oil eliminator (13) is in integrally frusto-conical shape, and its outer wall is smooth.
6. there is the scroll compressor of oil separating structure as claimed in claim 1, it is characterised in that
The exhaust valve plate (12) is fin.
7. there is the scroll compressor of oil separating structure, its feature as claimed in claim 2 or claim 3
It is, the spring (17) or the throttle pipe (19) is selected according to default pressure protection value
Size.
8. there is the scroll compressor of oil separating structure as claimed in claim 1, it is characterised in that
On the position that the shoe cream room (104) is disposed below relative to the oily disengagement chamber (102).
9. there is the scroll compressor of oil separating structure as claimed in claim 1, it is characterised in that
High pressure gas from the back pressure cavity (9) be compression after refrigerant and lubricating oil mixture.
10. there is the scroll compressor of oil separating structure as claimed in claim 1, it is characterised in that
Be additionally provided with main shaft support seat (8) on the main shaft (4), main shaft support seat (8) with it is described
Space between movable orbiting scroll (6) constitutes the back pressure cavity (9).
11. a kind of method of the oil of the separation lubrication in scroll compressor, wherein, the screw compressor
Including including cylinder body (1), the main shaft driven by drive device (4) is driven by the main shaft (4)
After the movable orbiting scroll (6) of rotation and the fixed scroll (7) coordinated with the movable orbiting scroll (6), a cylinder body
Lid (10) is connected to the cylinder body (1), in the dynamic and static whirlpool disk (6,7) of the cooperation and described
Main shaft (4) side constitute a back pressure cavity (9), the cooperation dynamic and static whirlpool disk (6,7) and
Cylinder body bonnet (10) side constitutes a high pressure chest (101)；
Wherein, the fixed scroll (7) is provided with steam vent (71), and exhaust valve plate (12) is connected to
On the fixed scroll (7) and it can close or open the steam vent (71), the fixed scroll (7)
It is additionally provided with drainback passage (72)；The cylinder body bonnet (10) also includes an oily disengagement chamber (102),
The oily disengagement chamber (102) by passage (103) set on the cylinder body bonnet (10) with
High pressure chest (101) connection；An oil eliminator (13) is provided with the oily disengagement chamber (102),
A shoe cream room (104), shoe cream room (104) phase are additionally provided with the cylinder body bonnet (10)
On the position being disposed below for the oily disengagement chamber (102) and on the one hand by located at the cylinder body
The high-pressure inlet (105) covered afterwards is connected with the oily disengagement chamber (102), on the other hand by
The drainback passage (72) connects with the back pressure cavity (9)；
Wherein, the scroll compressor is also included in the fixed scroll (7) including pressure relief mechanism (14)
On offer pressure release passage (73), the low pressure chamber (106) set in the cylinder body bonnet (10),
The low pressure chamber (106) connects by the pressure release passage (73) with the back pressure cavity (9)；
Methods described comprises the following steps：
The main shaft (4) drives the movable orbiting scroll (6) to rotate, between the dynamic and static disk (6,7)
High pressure gas is from the back pressure cavity (9) by the steam vent (71), the exhaust valve plate (12)
Into the high pressure chest (101)；
The high pressure gas enters the oily disengagement chamber (102) by the passage (103) and hit
The outer wall of the oil eliminator (13), under the action of the centrifugal force, lubricating oil is separated from high pressure gas；
The lubricating oil of separation oily disengagement chamber (102) bottom because Action of Gravity Field drops to, through institute
State high-pressure inlet (105) and enter the shoe cream room (104), and by the drainback passage (72)
It is back to the back pressure cavity (9)；
Wherein, when the pressure of the back pressure cavity (9) is more than default pressure protection value, the back pressure
A part of gases at high pressure of chamber (9) enter the low pressure chamber (106) by the pressure relief mechanism (14),
Until the back pressure cavity (9) is less than or equal to the default pressure protection value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610079685.2A CN107044414A (en) | 2016-02-05 | 2016-02-05 | A kind of scroll compressor and its lubricating oil separation method with oil separating structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610079685.2A CN107044414A (en) | 2016-02-05 | 2016-02-05 | A kind of scroll compressor and its lubricating oil separation method with oil separating structure |
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| CN107044414A true CN107044414A (en) | 2017-08-15 |
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| CN201610079685.2A Pending CN107044414A (en) | 2016-02-05 | 2016-02-05 | A kind of scroll compressor and its lubricating oil separation method with oil separating structure |
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| CN107575384A (en) * | 2017-09-04 | 2018-01-12 | 江苏成科新能源有限公司 | A kind of screw compressor |
| CN109185131A (en) * | 2018-10-29 | 2019-01-11 | 珠海凌达压缩机有限公司 | Screw compressor, air-conditioning and vehicle |
| CN109668041A (en) * | 2019-01-02 | 2019-04-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Vortex oil pump, compressor |
| CN110259689A (en) * | 2018-03-12 | 2019-09-20 | 广东威灵汽车部件有限公司 | Rotary compressor and vehicle with it |
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| CN107575384A (en) * | 2017-09-04 | 2018-01-12 | 江苏成科新能源有限公司 | A kind of screw compressor |
| CN110259689A (en) * | 2018-03-12 | 2019-09-20 | 广东威灵汽车部件有限公司 | Rotary compressor and vehicle with it |
| CN109185131A (en) * | 2018-10-29 | 2019-01-11 | 珠海凌达压缩机有限公司 | Screw compressor, air-conditioning and vehicle |
| CN109668041A (en) * | 2019-01-02 | 2019-04-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Vortex oil pump, compressor |
| CN115289010A (en) * | 2022-08-02 | 2022-11-04 | 重庆超力电器有限责任公司 | Compressor assembly and vehicle-mounted air conditioning system |
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Application publication date: 20170815 |