CN107763255A - Overturning type check valve, compressor and air conditioning equipment - Google Patents
Overturning type check valve, compressor and air conditioning equipment Download PDFInfo
- Publication number
- CN107763255A CN107763255A CN201711143425.8A CN201711143425A CN107763255A CN 107763255 A CN107763255 A CN 107763255A CN 201711143425 A CN201711143425 A CN 201711143425A CN 107763255 A CN107763255 A CN 107763255A
- Authority
- CN
- China
- Prior art keywords
- valve plate
- valve
- valves
- valve body
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 25
- 230000002153 concerted effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000037237 body shape Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a turnover check valve, a compressor and air conditioning equipment. The check valve comprises a valve body and a valve plate. The rotating shaft eccentrically penetrates through the outer edge side surface of the valve plate and hinges the valve plate in the valve body, and the weight of the valve plate with small area at one side of the rotating shaft is larger than that of the valve plate with large area at the other side of the rotating shaft; when the valve plate rotates around one side of the valve plate with small axial area under the action of gravity and rotates to the position vertical to the axis of the valve body to be limited and fixed, the valve plate seals the valve body; when the valve plate rotates reversely to open the valve body under the action of external force, the opening angle of the valve plate is not more than 90 DEG0. The check valve can reset by self gravityAnd (5) sealing. The limitation that the gravity reset type check valve cannot be used due to the gas flow direction of the unit is reduced, and the whole structure arrangement and the unit development are facilitated. And vulnerable parts such as springs are also eliminated, so that the stability and the reliability of the unit are improved, and the maintenance cost is reduced.
Description
Technical field
The present invention relates to air-conditioning system field, more particularly to a kind of check-valves being used in refrigeration compressor and use phase
Close the air-conditioning equipment of compressor.
Background technology
In the actual use of high pressure ratio centrifugal compressor, because the difference that pressure at expulsion and pressure of inspiration(Pi) force is larger, in unit
Easily occurs the phenomenon of reverse flowing of air flows during shutdown, i.e. gases at high pressure in condenser are redirected back into exhaust outlet of compressor, cause
The impeller of compressor is caused impeller to invert, can so reduce the service life of impeller, influence by greater impact when serious
The reliability of unit.Therefore, technically check-valves can be configured on the exhaust pipe assembly of such unit, to prevent reverse flowing of air flows.
There are many miscellaneous check-valves on the market at present, can be divided into according to the reset form of valve plate has spring reset type, gravity
Restoration type etc..Due to spring reset type check-valves spring often and coolant media contact, spring be easy to be corroded or by
Destroy, cause spring failure, valve plate does not reset, so that check-valves just fails, does not have effect, it is necessary to change spring ability
Rework.If often changing spring, maintenance and the increase of after cost result in.This check-valves shown in Fig. 1 be according to
Deadweight by valve plate 10 20 is rotated to carry out valve plate reset around the shaft, belongs to gravity reduction type check-valves.But this structure pair
The flow direction of gas requires, and gas can only can just wash valve plate open from the bottom up.But the actually gas of the compressor discharge of unit
Flow direction be from top to bottom, so the upper this structure of figure can not be used this unit.
Therefore, develop it is a kind of for gas wash open from top to bottom it is in the compressor of valve plate and rely on self gravitation with regard to energy
Check-valves, compressor and the air-conditioning equipment of reset are industry urgent problems to be solved.
The content of the invention
The present invention cannot be used in the compressor that gas washes valve plate open from top to bottom to solve existing gravity check valve
Problem, propose a kind of stabilization, be reliably used for what gas was washed open in the compressor of valve plate and resetted by self gravitation from top to bottom
Convertible check-valves, compressor and air-conditioning equipment.
A kind of convertible check-valves proposed by the present invention, including valve body, valve plate.One rotating shaft by the valve plate outer rim side
Bias passes through and the valve plate is articulated with the valve body, and the small valve plate of the area of the rotating shaft side, its weight is more than rotating shaft
The weight of the big valve plate of the area of opposite side；When the effect in gravity, valve plate plane turns the small valve plate one of axial area around described
Side rotates, when going to the axial location of the vertical valve body and being defined motionless, the valve plate closed valve；Used when in outer masterpiece
Under, when valve plate rotates backward the unlatching valve body, the angle that valve plate is opened is not more than 900 。
Preferably, the small valve plate of the area of the rotating shaft side can be provided with balancing weight, so that the valve plate weight of the side is big
In the weight of the big valve plate of the area of the rotating shaft opposite side.
Preferably, the closure torque of closed valve is more than unlatching moment caused by valve plate deadweight caused by the valve plate deadweight
5~15%。
Preferably, the internal face of the side of the valve body and/or opposite side is provided with limited block, to limit described valve plate
Valve body described in Plane Rotation to the vertically axial location of the valve body and motionless, closing.
Preferably, it is also provided with opening limited block on the internal face of the valve body, is opened with the valve plate rotation for limiting described
The angle opened is not more than 900 。
Preferably, the angle that the valve plate is opened can be preferably 750~850。
Preferably, described unlatching limited block is arranged at the lower section of the top and/or valve plate of the valve plate.
Present invention also proposes a kind of compressor with the convertible check-valves.
The invention also provides a kind of air-conditioning equipment with the compressor.
The present invention proposes a kind of check-valves for washing valve plate open from top to bottom available for gas, and the valve relies on self gravitation just
Closing can be resetted.Unit is reduced because gas flow can not use the limitation of gravity reduction type check-valves, is easy to complete machine structure
Arrangement and unit development.The check-valves eliminates the use of the consumable accessorys such as spring, improves stability, the reliability of unit, drop
It is low because of after cost caused by maintenance.
Brief description of the drawings
Fig. 1 is the open and close view for the check-valves that prior art is resetted by deadweight；
The schematic diagram of closed state when Fig. 2 is present pre-ferred embodiments check-valves inoperative；
Fig. 3 be present pre-ferred embodiments gas from top to bottom when check-valves opening schematic diagram；
Fig. 4 be present pre-ferred embodiments gas from lower to upper when check-valves closure state schematic diagram.
Wherein, valve body -1；Open limited block -2；Valve plate -3；Limited block 4,7；Balancing weight -5；Rotating shaft -6.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is further illustrated.
As shown in Fig. 2 a kind of convertible check-valves that present pre-ferred embodiments propose, it includes valve body 1 and valve plate 3.
Valve body is the cavity component that a kind of inner hollow both ends are provided with through hole.Can be with casting or welding fabrication, can also its other party
Method is molded.Valve body 1 can an independent part exist, a parts can also be formed with other combinations of features, such as and compression
Machine exhaust ports design is integrated.The main function of the valve body is the work for playing a supportive role and being formed runner guiding gas flowing
With.Valve plate 3 is a kind of thin plate of adaptation corresponding with valve body shape of cross section.One rotating shaft 6 is worn by the outer rim side bias of valve plate 3
Cross and the valve plate 3 is articulated with the inner chamber of valve body 1, valve plate 3 is divided into left and right two halves by the rotating shaft 6, inclined due to rotating shaft 6
The heart is hinged so that the area in the left side of valve plate 3 is small, right side area is big.The weight of the small valve plate of the area in the left side of rotating shaft 6 is set
Into the weight of the valve plate big more than the area on the right side of rotating shaft 6.In the present embodiment, the downside of the small valve plate of left side area is provided with one
Balancing weight 5, so it is conveniently adjusted replacing balancing weight.Area small valve plate in left side directly can also be made to thick point, so that left
The weight of the valve plate weight of the side valve plate big more than the area on the right side of rotating shaft 6.Pressure is not present in upper and lower two side of check-valves valve plate 3
During the situation of difference, valve plate is in the presence of self gravitation, i.e., the valve plate weight in left side produces closure torque more than the right side of rotating shaft 6
Valve plate weight produces unlatching moment, and the plane of valve plate 36 rotates to the left around the shaft（Inverse time rotates）, i.e., to the small valve plate 3 of area
Side rotates, when going to the axial location of the vertical valve body 1 of the plane of valve plate 3, and being defined motionless, the valve plate 3 closing valve
The passage of body 1, it can so prevent in the upper and lower gas intercommunication of valve plate.In order to which valve plate 3 closes, timely, unlatching is nimble, can cause
Valve plate 3 conduct oneself with dignity caused by closed valve 1 closure torque be more than valve plate deadweight caused by unlatching moment 5 ~ 15%.
As shown in figure 3, when the air pressure of the top of check-valves valve plate 3 is bigger than the air pressure of lower section, it can be assumed that for only non-return
There is air pressure on valve just now, that is to say, that only just now by the pressure of gas on valve plate.That is pressed gas dash valve from top to bottom
During plate 3, because the area in the left side of valve plate 3 is small, right side area is big, when the self gravitation of right side valve plate on the right side of valve plate with being bullied
Unlatching moment caused by the making a concerted effort of body effect is more than making a concerted effort for gas effect suffered by the left of self gravitation and the valve plate of left side valve plate
During caused closure torque, then reverse up time rotates valve plate 3, when opening the passage of the valve body 1, the angle of the control unlatching of valve plate 3
Degree is less than 900 .The angle that general valve plate 3 is opened is preferably 750~850.So the gas of check-valves upper end past will flow down.
As shown in figure 4, when the air pressure of the lower section of check-valves valve plate 3 is bigger than the air pressure of top, it can be assumed that for only valve plate
Under have air pressure just now, that is to say, that only just now by the pressure of gas under valve plate.I.e. pressed gas impacts valve plate 3 from the bottom up
When, because the area in the left side of valve plate 3 is small, right side area is big, when self gravitation and the gas suffered by valve plate right side of right side valve plate
Effect is made a concerted effort（Gas load subtracts self gravitation）Caused closure torque is more than the self gravitation and valve plate of left side valve plate
What gas suffered by left side acted on makes a concerted effort（Gas load subtracts self gravitation）During caused unlatching moment, then the inverse time turns valve plate 3
Move until the passage of the valve body 1 is closed in the spacing stopping by limited block 4 and limited block 7.So gas of check-valves lower end
Body will be blocked by check-valves, serve the effect for preventing lower section reverse flowing of air flows.
As shown in Figure 2,3, the inner left wall face of valve body 1 be provided with a limited block 4, right side internal face on also be provided with a limit
Position block 7, the axial location of the vertical valve body 1 is arrived and motionless to limit the Plane Rotation of valve plate 3, so as to the valve body 1 described in closing
Passage.It is position when limiting valve plate closure that the left and right sides, which sets the main function of limited block, as long as the shape of limited block 4,7
With length and body cavity shape adaptation, limited block 4,7 also has the gap between sealing valve plate and valve body when valve plate closes
Effect.Certainly, if valve plate and the valve body accuracy of manufacture are enough, one piece of limited block can also be set in the left side of valve body 1 or right side,
As long as the axial location that can limit the Plane Rotation of valve plate 3 to the vertical valve body 1 is motionless.Rotated to limit valve plate 3
The angle of unlatching is less than 900 , the unlatching limited block 2 of valve plate rotational angle is additionally provided with the internal face of valve body 1.The water that valve plate is in
During flat detent position, the unlatching limited block 2 can be arranged at the top of valve plate 3, can also be arranged at below valve plate 3, or
The upper and lower of valve plate 3 is set simultaneously, as long as the angle that limitation valve plate 3 is opened is less than 900.Open the effect master of limited block 2
If the angle that limitation valve plate 3 is opened, prevent that the angle that is rotated when valve plate is opened is excessive.If rotational angle is more than 900When, valve
Plate 3 cannot rely on gravity and return to horizontal detent position.
As needed, compressor can select the convertible check-valves of various structures.Air-conditioning equipment can be selected to have and turned over
The compressor of rotatable check-valves.
Check-valves of the present invention just can reset closing by self gravitation.Unit is reduced because gas flow can not use gravity
The limitation of restoration type check-valves, it is easy to complete machine structure arrangement and unit development.The check-valves eliminates the consumable accessorys such as spring
Use, improve stability, the reliability of unit, reduce because of after cost caused by maintenance.
Embodiment described above is primarily to the creating conception of the explanation present invention, it is noted that for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, various modifications and improvements can be made, these are all
Belong to protection scope of the present invention.
Claims (9)
1. a kind of convertible check-valves, including valve body（1）, valve plate（3）, it is characterised in that a rotating shaft（6）By the valve plate（3）
Outer rim side bias pass through and by the valve plate（3）It is articulated with the valve body（1）In, the rotating shaft（6）The area of side is small
Valve plate（3）, its weight is more than rotating shaft（6）The big valve plate of the area of opposite side（3）Weight；When the effect in gravity, valve plate（3）
Plane is around the rotating shaft（6）The valve plate small to area（3）Side rotates, and goes to the vertical valve body（1）Axial location and by
When limiting motionless, the valve plate（3）Closed valve（1）Passage；When under external force, valve plate（3）Rotate backward described in unlatching
Valve body（1）When, the angle that valve plate is opened is less than 900 。
2. convertible check-valves as claimed in claim 1, it is characterised in that the rotating shaft（6）The small valve plate of the area of side
（3）Provided with balancing weight（5）, so that the valve plate weight of the side is more than the rotating shaft（6）The weight of the big valve plate of the area of opposite side.
3. convertible check-valves as claimed in claim 1, it is characterised in that the valve plate（3）Closed valve caused by deadweight
（1）Closure torque be more than valve plate deadweight caused by unlatching moment 5 ~ 15%.
4. convertible check-valves as claimed in claim 1, it is characterised in that the valve body（1）Side and/or opposite side
Internal face is provided with limited block, to limit described valve plate（3）Plane Rotation is to the vertical valve body（1）Axial location without
The dynamic closing valve body（1）Passage.
5. convertible check-valves as claimed in claim 1, it is characterised in that the valve body（1）Internal face be provided with open
Limited block（2）, to limit described valve plate（3）Rotate the angle opened and be less than 900 。
6. convertible check-valves as claimed in claim 5, it is characterised in that the valve plate（3）The angle of unlatching is 750~850。
7. convertible check-valves as claimed in claim 5, it is characterised in that described unlatching limited block（2）It is arranged at described
Valve plate（3）Top and/or valve plate（3）Lower section.
8. a kind of compressor, it is characterised in that including with the convertible check-valves described in any one of claim 1 ~ 7.
9. a kind of air-conditioning equipment, it is characterised in that including with the compressor described in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711143425.8A CN107763255A (en) | 2017-11-17 | 2017-11-17 | Overturning type check valve, compressor and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711143425.8A CN107763255A (en) | 2017-11-17 | 2017-11-17 | Overturning type check valve, compressor and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107763255A true CN107763255A (en) | 2018-03-06 |
Family
ID=61278175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711143425.8A Withdrawn CN107763255A (en) | 2017-11-17 | 2017-11-17 | Overturning type check valve, compressor and air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107763255A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538794A (en) * | 2019-01-16 | 2019-03-29 | 珠海格力电器股份有限公司 | Pilot check valve and air conditioning system |
| CN109578635A (en) * | 2018-12-25 | 2019-04-05 | 珠海格力电器股份有限公司 | Check valve and air conditioning system |
| WO2021138844A1 (en) * | 2020-01-08 | 2021-07-15 | 王志猛 | Valve body of fermentation tank |
| CN114517847A (en) * | 2022-01-19 | 2022-05-20 | 中国核电工程有限公司 | Check valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198479Y (en) * | 1994-08-17 | 1995-05-24 | 冶金工业部重庆钢铁设计研究院 | Gas check valve |
| CN201277355Y (en) * | 2008-09-25 | 2009-07-22 | 聊城市鲁西化工工程设计有限责任公司 | Automatic opening and closing type non-return valve |
| CN102124224A (en) * | 2008-08-13 | 2011-07-13 | (学)斗源学院 | Exhaust check valve of swash plate compressor |
| US20170292621A1 (en) * | 2016-04-12 | 2017-10-12 | Hs Wroclaw Sp. Z.O.O. | Flapper check valve bumper |
| CN207500552U (en) * | 2017-11-17 | 2018-06-15 | 珠海格力电器股份有限公司 | Overturning type check valve, compressor and air conditioning equipment |
-
2017
- 2017-11-17 CN CN201711143425.8A patent/CN107763255A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198479Y (en) * | 1994-08-17 | 1995-05-24 | 冶金工业部重庆钢铁设计研究院 | Gas check valve |
| CN102124224A (en) * | 2008-08-13 | 2011-07-13 | (学)斗源学院 | Exhaust check valve of swash plate compressor |
| CN201277355Y (en) * | 2008-09-25 | 2009-07-22 | 聊城市鲁西化工工程设计有限责任公司 | Automatic opening and closing type non-return valve |
| US20170292621A1 (en) * | 2016-04-12 | 2017-10-12 | Hs Wroclaw Sp. Z.O.O. | Flapper check valve bumper |
| CN207500552U (en) * | 2017-11-17 | 2018-06-15 | 珠海格力电器股份有限公司 | Overturning type check valve, compressor and air conditioning equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578635A (en) * | 2018-12-25 | 2019-04-05 | 珠海格力电器股份有限公司 | Check valve and air conditioning system |
| WO2020134406A1 (en) * | 2018-12-25 | 2020-07-02 | 珠海格力电器股份有限公司 | Check valve and air conditioning system |
| CN109538794A (en) * | 2019-01-16 | 2019-03-29 | 珠海格力电器股份有限公司 | Pilot check valve and air conditioning system |
| CN109538794B (en) * | 2019-01-16 | 2024-02-02 | 珠海格力电器股份有限公司 | Pilot-operated check valve and air conditioning system |
| WO2021138844A1 (en) * | 2020-01-08 | 2021-07-15 | 王志猛 | Valve body of fermentation tank |
| CN114517847A (en) * | 2022-01-19 | 2022-05-20 | 中国核电工程有限公司 | Check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |
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| WW01 | Invention patent application withdrawn after publication |