CN109139479A - Exhaust system and compressor - Google Patents
Exhaust system and compressor Download PDFInfo
- Publication number
- CN109139479A CN109139479A CN201810914346.0A CN201810914346A CN109139479A CN 109139479 A CN109139479 A CN 109139479A CN 201810914346 A CN201810914346 A CN 201810914346A CN 109139479 A CN109139479 A CN 109139479A
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- Prior art keywords
- lift stopper
- exhaust
- valve plate
- lift
- valve seat
- Prior art date
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- 238000013016 damping Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- 229910000639 Spring steel Inorganic materials 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001739 rebound effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Check Valves (AREA)
Abstract
The invention provides an exhaust system and a compressor, the exhaust system comprises: a valve seat (1) having an exhaust port (11) therein; one end of the exhaust valve plate (2) is fixedly connected to the valve seat (1), and the other end of the exhaust valve plate can open and close the exhaust port (11); the exhaust valve is characterized by further comprising a second lift limiter (3), wherein the position of the second lift limiter (3) corresponds to that of the exhaust valve plate and is arranged on one side, away from the valve seat (1), of the exhaust valve plate (2); the exhaust valve further comprises at least one first lift limiter (4), and the first lift limiter (4) is arranged between the exhaust valve plate (2) and the second lift limiter (3). The invention can increase the damping of the lift limiter, reduce the impact speed of the valve plate impacting the limiter, improve the impact fatigue performance of the high-frequency and large-flow exhaust valve plate, greatly increase the reliability of the exhaust system and ensure the complete machine reliability operation of the compressor.
Description
Technical field
The invention belongs to Compressor Technology fields, and in particular to a kind of exhaust system and compressor.
Background technique
At present for rotary compressor, conventional gas deflation assembly includes valve seat, exhaust valve plate, lift stopper.Exhaust
Component is mounted on flange or cylinder, and exhaust valve plate head covers exhaust outlet.During compressor air-discharging, valve block is by means of gas
Gas pressure difference between cylinder working chamber and exhaust outlet is opened, and opens moment, valve block head is with biggish velocity shock to lift
Limiter；At the end of compressor air-discharging, it is desirable that it is timely that valve block closes response.
When especially compressor is run with the higher frequency of 100-240HZ, there is Railway Project to have to consider:
1) compressor high frequency is run, and cold medium flux is big, and exhaust valve plate is opened, closing motion is frequent, and impact velocity is also larger,
Exhaust system is easy to damage, and reduces its service life.
2) compressor high frequency is run, and is limited by valve block rigidity, and exhaust valve plate response speed is slow, and valve block closes delay,
Compressor performance is caused to decline.
Due to compressor in the prior art exhaust component there are high frequency operation, big flow refrigerant impact exhaust valve plate and
Exhaust valve plate is caused to be easy fatigue damage, and exhaust valve plate backhaul response speed is slow, valve block closes delay and causes compressor
It can decline；And valve block impact is easy to produce the technical problems such as larger noise, therefore researching and designing of the present invention goes out a kind of exhaust system
System and compressor.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that the exhaust component of compressor in the prior art is overcome to there is height
The defect that frequency is run, big flow refrigerant impacts exhaust valve plate and exhaust valve plate is caused to be easy fatigue damage, to provide a kind of row
Gas system and compressor.
The present invention provides a kind of exhaust system comprising:
Valve seat has exhaust outlet on the valve seat；
Exhaust valve plate, one end are fixedly connected on the valve seat, and the other end can open and close the exhaust outlet；
Further include the second lift stopper, the position of second lift stopper it is corresponding with the exhaust valve plate and
It is set to the side away from the valve seat of the exhaust valve plate；
It further include at least one first lift stopper, first lift stopper is arranged in the exhaust valve plate and institute
State the position between the second lift stopper.
Preferably,
First lift stopper one end is connected and fixed on the valve seat, the other end extends to the exhaust valve plate
Positioned at the top at the exhaust outlet position；And/or
Second lift stopper one end is connected and fixed on the valve seat, the other end extends to the first lift limit
The top positioned at the exhaust outlet position of position device.
Preferably,
The one end of the exhaust valve plate being connected on the valve seat has the company in the first hole, first lift stopper
There is the one end of the second hole, second lift stopper being connected on the valve seat to have for the one end being connected on the valve seat
Third hole；
The exhaust valve plate, first lift stopper and second lift stopper are sequentially stacked from bottom to up,
And first hole, second hole and the third hole are opposite, it can be by screw, bolt or rivet also cross described
First hole, second hole and the third hole and by the exhaust valve plate, first lift stopper and second liter described
Journey limiter is fixed on the valve seat simultaneously.
Preferably,
The rigidity of first lift stopper is greater than the rigidity of the exhaust valve plate.
Preferably,
The material of first lift stopper is iron or base steel material.
Preferably,
The surface of first lift stopper is also coated with damping coatings.
Preferably,
The material of first lift stopper include in plastics, carbon fibre composite and graphene composite material extremely
Few one kind.
Preferably,
In vertical cross-section, first lift stopper there is first straight line section and the first curved section, described first is straight
Line segment is connect with the valve seat, first curved section is located at the top of the exhaust valve plate and the exhaust outlet opposite site；
Second lift stopper has second straight line section and the second curved section, the second straight line section and the valve seat
Connection, second curved section are located at the top of first lift stopper and the exhaust outlet opposite site.
Preferably,
The length of the first straight line section is a, and the length of the second straight line section is a ', and has a >=a '；And/or it is described
First curved section and second curved section are arc segment, and the radius of curvature of first curved section is R1, and described second
The radius of curvature of curved section is R2, and has R1 > R2.
Preferably,
First lift stopper with a thickness of t1, second lift stopper with a thickness of t2, and have t1 < t2.
The present invention also provides a kind of compressors comprising preceding described in any item exhaust systems.
A kind of exhaust system provided by the invention and compressor have the following beneficial effects:
1. the present invention between exhaust valve plate and the second lift stopper by also setting up the limit of at least one first lift
Device is capable of the damping of increased lift stopper, reduces the impact velocity of valve block bound stopper, improves high frequency, big stream
The impact fatigue behavior of lower exhaust valve plate is measured, the reliability of great increased exhaust system guarantees compressor whole aircraft reliability
Operation；Impact velocity of the present invention due to reducing exhaust valve plate can also reduce valve block impact and generate to a certain extent
Noise；
2. the rigidity for being located at the first lift stopper of exhaust valve plate is set greater than the exhaust valve plate by the present invention
Rigidity, the structure do not increase resistance when exhaust, make it possible to targetedly increase the rigidity of exhaust valve plate backhaul, the row of improving
Corresponding speed when air valve plate is closed, the bottleneck problem of valve block late release when compressor high speed (high frequency) being avoided to run, solves
The problem of the problem of refrigerant return and compression chamber pressure leakage, improve compressor performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of exhaust system in the prior art；
Fig. 2 is the structural schematic diagram of exhaust system of the invention；
Fig. 3 is the configuration schematic diagram of exhaust valve plate in Fig. 2, the first and second lift stoppers；
Fig. 4 is the structural schematic diagram of exhaust system of the invention when exhaust valve plate is just opened；
Fig. 5 is the structural schematic diagram of exhaust system of the invention when exhaust valve plate impacts the first lift stopper；
Fig. 6 is the structural representation of exhaust system of the invention when the first lift stopper impacts the second lift stopper
Figure；
Fig. 7 is the structural schematic diagram of exhaust system of the invention when the first lift stopper accelerates closing exhaust valve plate.
Appended drawing reference indicates in figure are as follows:
1, valve seat；11, exhaust outlet；2, exhaust valve plate；21, the first hole；3, the second lift stopper；31, third hole；32,
Second straight line section；33, the second curved section；4, the first lift stopper；41, the second hole；42, first straight line section；43, the first curve
Section；5, rivet.
Specific embodiment
As illustrated in figs. 2-7, the present invention provides a kind of exhaust system comprising:
Valve seat 1 has exhaust outlet 11 on the valve seat；
Exhaust valve plate 2, one end are fixedly connected on the valve seat 1, and the other end can open and close the exhaust outlet 11；
It further include the second lift stopper 3, the position of second lift stopper 3 is corresponding with the exhaust valve plate,
And it is set to the side away from the valve seat 1 of the exhaust valve plate 2；
It further include at least one first lift stopper 4, first lift stopper 4 is arranged in the exhaust valve plate 2
Position between second lift stopper 3.
Fig. 1 show compressor and often uses exhaust structure, is made of valve seat, exhaust valve plate, lift stopper.But compressor
When running at higher frequencies, valve block has the problems such as opening speed is fast, shock loading is big, closes not in time.For this problem, originally
The exhaust system of invention further includes exhaust valve plate, the first lift limit other than valve seat as shown in Fig. 2, valve seat construction remains unchanged
Position device and the second lift stopper.The present invention is by also setting up at least one between exhaust valve plate and the second lift stopper
First lift stopper is capable of the damping of increased lift stopper, reduces the impact velocity of valve block bound stopper, improves
The impact fatigue behavior of exhaust valve plate under high frequency, big flow, the reliability of great increased exhaust system, guarantees compressor
Whole aircraft reliability operation；Impact velocity of the present invention due to reducing exhaust valve plate, can also reduce valve to a certain extent
The noise that piece impact generates.
Preferably,
Described first lift stopper, 4 one end is connected and fixed on the valve seat 1, the other end extends to the exhaust valve plate
2 top positioned at 11 position of exhaust outlet；And/or
Described second lift stopper, 3 one end is connected and fixed on the valve seat 1, the other end extends to first lift
The top positioned at 11 position of exhaust outlet of limiter 4.
This is preferred constructive form and the setting position of the first lift stopper and the second lift stopper of the invention, will
First lift stopper, which is set to above exhaust valve plate, enables to the exhaust valve plate in exhaust to open, first impact first liter
Then journey limiter passes through two layers or two layers or more of lift stopper energy toward rising, impacting the second lift stopper again again
The case where impact velocity for enough effectively reducing exhaust valve plate improves the impact fatigue behavior of valve block, prevents valve block fatigue damage
Occur.
Exhaust structure of the invention includes valve seat, exhaust valve plate, the first lift stopper and the second lift stopper.Row
Air valve plate, the first lift stopper, the second lift stopper are fixed on valve seat by riveting, can also be connected by screw to solid
It is scheduled on valve seat.Exhaust valve plate covers on valve port, is followed successively by the first lift stopper, the second lift with the component of valve block cooperation
Limiter is shown in Fig. 2.
Exhaust valve plate is opened under the action of valve seat valve port and poor compression chamber external pressure, in exhaust process, exhaust valve head
Portion is detached from valve port, and impacts the first lift stopper first under free track state, sees Fig. 5；Because the first lift stopper has
There is preferable elasticity, as the lift that valve block is opened increases, and then the first lift stopper impacts the second lift stopper, sees
Fig. 6.
Preferably,
Such as Fig. 2-3, the one end of the exhaust valve plate 2 being connected on the valve seat 1 has the first hole 21, first liter described
There is the second hole 41, second lift stopper 3 to be connected to institute for one end being connected on the valve seat 1 of journey limiter 4
The one end stated on valve seat 1 has third hole 31,
The exhaust valve plate 2, first lift stopper 4 and second lift stopper 3 are successively folded from bottom to up
It sets, and first hole 21, second hole 41 and the third hole 31 are opposite, it can be same by screw, bolt or rivet 5
When pass through first hole 21, second hole 41 and the third hole 31 and by the exhaust valve plate 2, first lift limit
Position device 4 and second lift stopper 3 are fixed on the valve seat 1 simultaneously.
This is the preferred type of attachment of exhaust valve plate of the invention, the first lift stopper and the second lift stopper and consolidates
Determine mode, i.e., by docking the hole opened up respectively thereon, and is fixed in by way of screw, bolt or rivet
On valve seat, connection while can be realized three, the present invention is preferably riveted, and easy to operate, structure is simple, and enables to the
One and second lift stopper can play the role of limiting exhaust valve plate and slow down impact.The limit of especially the first lift
Device, since it is directly to contact with exhaust valve plate, the first lift stopper material therefor has preferable elasticity or toughness, can
Reduce impact property.
Preferably,
The rigidity of first lift stopper 4 is greater than the rigidity of the exhaust valve plate 2.The present invention will be located at exhaust valve plate
The rigidity of the first lift stopper be set greater than the rigidity of the exhaust valve plate, which does not increase resistance when exhaust,
The rigidity for making it possible to targetedly increase exhaust valve plate backhaul improves corresponding speed when exhaust valve plate is closed, avoids pressing
The bottleneck problem of valve block late release when contracting machine high speed (high frequency) operation solves the problems, such as refrigerant return and compression cavity pressure
The problem of leakage, improves compressor performance.
Exhaust closes on finish time, and exhaust valve plate and the first lift stopper are sprung back to valve port, the first lift stopper
Rebound velocity is fast compared with exhaust valve plate rebound velocity, and the reply corresponding speed of the first lift stopper is faster than exhaust valve plate, and first liter
Journey limiter accelerates that exhaust valve plate is pushed to close, and sees Fig. 7.
Preferably,
The material of first lift stopper is iron or base steel material, such as spring steel, valve steels band, preferably spring steel
Band.This is the preferred material form of the first lift stopper of the invention, its rigidity can be made to be greater than the rigidity of exhaust valve plate, tool
There are preferable rebound effect and effect, the first lift stopper has preferable elasticity, and valve block can be absorbed and impact the first lift limit
The energy of position device, reduces the impact velocity of valve block.
In order to reach the effect, it is preferable that the material of the first lift stopper is steel or ferrous material, such as spring
Steel, valve steels, preferably spring steel band.First lift stopper surface of metal material can have coating, increase lift stopper
Damping, while the fatigue property of the first lift stopper can be improved, guarantee the reliability of whole gas extraction system.
Preferably,
The surface of first lift stopper 4 is also coated with damping coatings.Lift can be increased by coating damping coatings
The damping of limiter, while the fatigue property of the first lift stopper can be improved, guarantee whole gas extraction system
Reliability.
Preferably,
The material of first lift stopper include in plastics, carbon fibre composite and graphene composite material extremely
Few one kind.This is the other preferred material form of the first lift stopper of the invention, its rigidity can also be made to be greater than exhaust
The rigidity of valve block has preferable rebound effect and effect, and the first lift stopper has preferable elasticity, and valve block punching can be absorbed
The energy for hitting the first lift stopper reduces the impact velocity of valve block.
Preferably,
In vertical cross-section, first lift stopper 4 there is first straight line section 42 and the first curved section 43, described the
It is opposite with the exhaust outlet 11 that one straightway 42 is connect with the valve seat 1, first curved section 43 is located at the exhaust valve plate 2
The top at position；
Second lift stopper 3 has second straight line section 32 and the second curved section 33, the second straight line section 32 with
The connection of valve seat 1, second curved section 33 are located at first lift stopper 4 and 11 opposite site of exhaust outlet
Top.
This is the specific constructive form of the difference of the first lift stopper and the second lift stopper of the invention, that is, is passed through
Straightway can be connected and fixed and can be upturned on valve seat, by curved section, have regime of elastic deformation, can carry
The surface contacted when exhaust valve plate is bent upwards, the table that the first lift stopper carrying exhaust valve plate is contacted when being bent upwards
Face, the second lift stopper carry the surface contacted when the first lift stopper is bent upwards.
Preferably,
The length of the first straight line section 42 is a, and the length of the second straight line section 32 is a ', and has a >=a '；And/or
First curved section 43 and second curved section 33 are arc segment, and the radius of curvature of first curved section 43 is
The radius of curvature of R1, second curved section 33 are R2, and have R1 > R2.As shown in Fig. 2, by the straight line of the first lift stopper
Segment length is set as longer than the length of straigh line of the second lift stopper, enables to the linearly extended distance of the first lift stopper
It is longer, and the curve segment length of the first lift stopper is set as bigger than the radius of curvature of the curved section of the second lift stopper, says
Bright first lift stopper is more gentle compared with the second lift stopper, and the second lift stopper is more upturned, due to second
Lift stopper is located at the upper end of the first lift stopper, such setting structure be more conducive to the movement of exhaust valve plate by by
The limit and unloading impact of grade.
The first lift stopper and the second lift stopper have two-stage structure in this programme, are divided into straightway and curve
Section.Wherein the straightway a of the first lift stopper is not less than the second lift stopper straightway a', the limit of the first, second lift
The curvature of device curved section has following requirement: R1 > R2, and (R1, R2 respectively indicate the curvature of the first, second lift stopper curved section
Radius；).
Preferably,
First lift stopper 4 with a thickness of t1, second lift stopper 3 with a thickness of t2, and have t1 <
t2.This is the preferred thickness relationship of the first lift stopper and the second lift stopper of the invention, by the first lift stopper
Thickness be set smaller than the second lift stopper, enable to the first lift stopper can occur well elastic recoil work
With the effect for improving the timely return of valve block, preventing coolant leakage, the second lift stopper can be played substantially stationary or be swung
Amplitude is smaller, plays the role of effectively limiting.
The present invention also provides a kind of compressors comprising preceding described in any item exhaust systems.The present invention is by being vented
At least one first lift stopper is also set up between valve block and the second lift stopper, is capable of the resistance of increased lift stopper
Buddhist nun reduces the impact velocity of valve block bound stopper, improves the impact fatigue behavior of exhaust valve plate under high frequency, big flow,
The reliability of great increased exhaust system guarantees the operation of compressor whole aircraft reliability；The present invention is due to reducing exhaust valve
The impact velocity of piece can also reduce the noise that valve block impact generates to a certain extent；
The rigidity that the present invention will also be located in the first lift stopper of exhaust valve plate is set greater than the exhaust valve plate
Rigidity, the structure do not increase resistance when exhaust, make it possible to targetedly increase the rigidity of exhaust valve plate backhaul, the row of improving
Corresponding speed when air valve plate is closed, the bottleneck problem of valve block late release when compressor high speed (high frequency) being avoided to run, solves
The problem of the problem of refrigerant return and compression chamber pressure leakage, improve compressor performance.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (11)
1. a kind of exhaust system, it is characterised in that: include:
Valve seat (1) has exhaust outlet (11) on the valve seat；
Exhaust valve plate (2), one end are fixedly connected on the valve seat (1), and the other end can open and close the exhaust outlet
(11)；
It further include the second lift stopper (3), the position of second lift stopper (3) is corresponding with the exhaust valve plate,
And it is set to the side away from the valve seat (1) of the exhaust valve plate (2)；
It further include at least one first lift stopper (4), first lift stopper (4) is arranged in the exhaust valve plate
(2) position between second lift stopper (3).
2. exhaust system according to claim 1, it is characterised in that:
Described first lift stopper (4) one end is connected and fixed on the valve seat (1), the other end extends to the exhaust valve plate
(2) the top positioned at the exhaust outlet (11) position；And/or
Described second lift stopper (3) one end is connected and fixed on the valve seat (1), the other end extends to first lift
The top positioned at the exhaust outlet (11) position of limiter (4).
3. exhaust system according to claim 2, it is characterised in that:
There are the first hole (21), first lift to limit for the one end of the exhaust valve plate (2) being connected on the valve seat (1)
There are the second hole (41), the second lift stopper (3) to be connected to for one end being connected on the valve seat (1) of device (4)
One end on the valve seat (1) has third hole (31),
The exhaust valve plate (2), first lift stopper (4) and second lift stopper (3) are from bottom to up successively
It is stacked, and first hole (21), second hole (41) and the third hole (31) are opposite, can pass through screw, bolt
Or rivet () is also cross first hole (21), second hole (41) and the third hole (31) and by the exhaust valve
Piece (2), first lift stopper (4) and second lift stopper (3) are fixed on the valve seat (1) simultaneously.
4. exhaust system according to any one of claim 1-3, it is characterised in that:
The rigidity of first lift stopper (4) is greater than the rigidity of the exhaust valve plate (2).
5. exhaust system according to claim 4, it is characterised in that:
The material of first lift stopper is iron or base steel material.
6. exhaust system according to claim 5, it is characterised in that:
The surface of first lift stopper is also coated with damping coatings.
7. exhaust system according to claim 4, it is characterised in that:
The material of first lift stopper includes at least one in plastics, carbon fibre composite and graphene composite material
Kind.
8. exhaust system described in any one of -7 according to claim 1, it is characterised in that:
In vertical cross-section, first lift stopper (4) have first straight line section (42) and the first curved section (43), it is described
First straight line section (42) is connect with the valve seat (1), first curved section (43) is located at the exhaust valve plate (2) and the row
The top of port (11) opposite site；
Second lift stopper (3) has second straight line section (32) and the second curved section (33), the second straight line section
(32) it is connect with the valve seat (1), second curved section (33) is located at first lift stopper (4) and the exhaust outlet
(11) top of opposite site.
9. exhaust system according to claim 8, it is characterised in that:
The length of the first straight line section (42) is a, and the length of the second straight line section (32) is a ', and has a >=a '；And/or
First curved section (43) and second curved section (33) are arc segment, and the curvature of first curved section (43) is partly
Diameter is R1, and the radius of curvature of second curved section (33) is R2, and has R1 > R2.
10. exhaust system according to claim 1 to 9, it is characterised in that:
First lift stopper (4) with a thickness of t1, second lift stopper (3) with a thickness of t2, and have t1 <
t2。
11. a kind of compressor, it is characterised in that: including exhaust system of any of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810914346.0A CN109139479A (en) | 2018-08-10 | 2018-08-10 | Exhaust system and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810914346.0A CN109139479A (en) | 2018-08-10 | 2018-08-10 | Exhaust system and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139479A true CN109139479A (en) | 2019-01-04 |
Family
ID=64792567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810914346.0A Pending CN109139479A (en) | 2018-08-10 | 2018-08-10 | Exhaust system and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720315A (en) * | 2020-06-29 | 2020-09-29 | 安徽美芝精密制造有限公司 | Rotary compressor and refrigerating device |
| CN113982948A (en) * | 2021-11-17 | 2022-01-28 | 广东美芝制冷设备有限公司 | Valve seat assembly and compressor |
Citations (15)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111720315A (en) * | 2020-06-29 | 2020-09-29 | 安徽美芝精密制造有限公司 | Rotary compressor and refrigerating device |
| CN113982948A (en) * | 2021-11-17 | 2022-01-28 | 广东美芝制冷设备有限公司 | Valve seat assembly and compressor |
| CN113982948B (en) * | 2021-11-17 | 2023-03-14 | 广东美芝制冷设备有限公司 | Valve seat assembly and compressor |
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Application publication date: 20190104 |