CN207500552U - Overturning type check valve, compressor and air conditioning equipment - Google Patents
Overturning type check valve, compressor and air conditioning equipment Download PDFInfo
- Publication number
- CN207500552U CN207500552U CN201721539145.4U CN201721539145U CN207500552U CN 207500552 U CN207500552 U CN 207500552U CN 201721539145 U CN201721539145 U CN 201721539145U CN 207500552 U CN207500552 U CN 207500552U
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- valve plate
- valve
- valves
- valve body
- check
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- 238000004378 air conditioning Methods 0.000 title claims description 9
- 230000005484 gravity Effects 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing 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
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- Check Valves (AREA)
Abstract
The utility modelThe patent refers to the field of 'non-return valves'. 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 be reset and closed by the gravity of the check valve. 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 utility model is related to air-conditioning system field more particularly to a kind of check-valves being used in refrigeration compressor and make
With the air-conditioning equipment of associated compressor.
Background technology
In the actual use of high pressure ratio centrifugal compressor, since the difference that pressure at expulsion and pressure of inspiration(Pi) force is larger, in unit
High pressure gas in the phenomenon that reverse flowing of air flows is susceptible to during shutdown, i.e. condenser is redirected back into exhaust outlet of compressor, causes
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
It destroys, leads to spring failure, valve plate does not reset, so that check-valves just fails, does not have effect, needs replacing spring ability
It reworks.If often replacing spring, repair and the increase of after cost are resulted in.This check-valves shown in FIG. 1 be according to
Valve plate reset is carried out by dead weight 20 rotations around the shaft of valve plate 10, belongs to gravity reduction type check-valves.But this structure pair
The flow direction of gas requires, and gas can only 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 use 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 its own gravity with regard to energy
Check-valves, compressor and the air-conditioning equipment of reset are industry urgent problems to be solved.
Invention content
The utility model is in order to solve the compressor that existing gravity check valve cannot be used for gas and wash valve plate open from top to bottom
The problems in, it proposes a kind of stabilization, be reliably used for gas and wash open in the compressor of valve plate and answered by its own gravity from top to bottom
Convertible check-valves, compressor and the air-conditioning equipment of position.
The utility model proposes a kind of convertible check-valves, including valve body, valve plate.One shaft by the valve plate outer rim
Side bias passes through and the valve plate is articulated in the valve body, and the small valve plate of the area of the shaft side, weight is more than
The weight of the big valve plate of the area of shaft opposite side；When the effect in gravity, valve plate plane turns the small valve of axial area around described
Plate side rotates, when going to the axial location of the vertical valve body and being defined motionless, the valve plate closed valve；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 shaft side can be equipped with clump 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 shaft opposite side.
Preferably, the closure torque of closed valve that the valve plate dead weight generates is more than the unlatching moment that valve plate dead weight generates
5~15%。
Preferably, the internal face of the side of the valve body and/or opposite side is equipped with limited block, to limit the valve plate
Plane Rotation is to the axial location of the vertical valve body and valve body motionless, that closing is described.
Preferably, it is also provided with opening limited block on the internal face of the valve body, be 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, the unlatching limited block is set to the lower section of the top and/or valve plate of the valve plate.
The utility model also proposed a kind of compressor with the convertible check-valves.
The utility model also proposed a kind of air-conditioning equipment with the compressor.
The utility model proposes a kind of check-valves for washing valve plate open from top to bottom available for gas, and the valve is by itself weight
Power just can reset closing.Unit is reduced because gas flow cannot use the limitation of gravity reduction type check-valves, convenient for complete machine
Structure is arranged and unit development.The check-valves eliminates the use of the vulnerable parts such as spring, improves the stability, reliable of unit
Property, reduce the after cost generated by repair.
Description of the drawings
Fig. 1 is the open and close status diagram of check-valves that the prior art is resetted by dead weight；
The schematic diagram of closed state when Fig. 2 is the utility model preferred embodiment check-valves inoperative；
Fig. 3 be the utility model preferred embodiment gas from top to bottom when check-valves opening schematic diagram；
Fig. 4 be the utility model preferred embodiment gas from lower to upper when check-valves closed state schematic diagram.
Wherein, valve body -1；Open limited block -2；Valve plate -3；Limited block 4,7；Clump weight -5；Shaft -6.
Specific embodiment
The utility model is further described with reference to embodiment and attached drawing.
As shown in Fig. 2, a kind of convertible check-valves that the utility model preferred embodiment proposes, including valve body 1 and valve
Plate 3.Valve body is the cavity component that a kind of inner hollow both ends are equipped with through-hole.It can also it with casting and forming or welding fabrication
He is molded method.Valve body 1 can an independent part exist, can also combine to form a parts with other features, such as and
Exhaust outlet of compressor design is integrated.The main function of the valve body plays a supportive role and is formed runner guiding gas flowing
Effect.Valve plate 3 is a kind of thin plate of adaptation corresponding with valve body cross-sectional shape.One shaft 6 is eccentric by the outer rim side of valve plate 3
It passes through and the valve plate 3 is articulated in 1 inner cavity of valve body, which is divided into left and right two halves by valve plate 3, due to shaft 6
Bias is hinged so that the area in 3 left side of valve plate is small, right side area is big.The weight of the small valve plate of the area in 6 left side of shaft is set
It is set to the weight of the valve plate big more than the area on 6 right side of shaft.In the present embodiment, the downside of the small valve plate of left side area is equipped with
One clump weight 5, is conveniently adjusted replacement clump weight in this way.Can also area small valve plate in left side be directly made to thick point, so that
The weight of the valve plate weight in the left side valve plate big more than the area on 6 right side of shaft.In check-valves valve plate, 3 upper and lower two side is not present
During the situation of pressure difference, under the effect of gravity, i.e., the valve plate weight in left side generates is closed torque more than 6 right side of shaft to valve plate
Side valve plate weight generates unlatching moment, and 3 plane of valve plate 6 rotates to the left around the shaft（Inverse time rotates）, i.e., to the small valve plate 3 of area
Side rotation, when going to the axial location of the vertical valve body 1 of 3 plane of valve plate, and being defined motionless, which closes
The channel of valve body 1 can be prevented in this way in the upper and lower gas intercommunication of valve plate.In order to which valve plate 3 is closed, timely, unlatching is nimble, can make
Obtain the unlatching moment 5 ~ 15% that the closure torque of closed valve 1 that the dead weight of valve plate 3 generates is more than valve plate dead weight generation.
As shown in figure 3, when the air pressure of 3 top of check-valves valve plate 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, since the area in 3 left side of valve plate is small, right side area is big, it is bullied on the right side of its own gravity of right side valve plate and valve plate
The unlatching moment that the resultant force of body effect generates is more than its own gravity of left side valve plate and the resultant force of gas effect suffered by valve plate left side
During the closure torque of generation, the then reversed up time rotation of valve plate 3, when opening the channel 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.The gas of check-valves upper end past will flow down in this way.
As shown in figure 4, when the air pressure of 3 lower section of check-valves valve plate 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, since the area in 3 left side of valve plate is small, right side area is big, when its own gravity and the gas suffered by valve plate right side of right side valve plate
The resultant force of effect（Gas load subtracts its own gravity）The closure torque of generation is more than its own gravity and valve plate of left side valve plate
The resultant force that gas suffered by left side acts on（Gas load subtracts its own gravity）During the unlatching moment of generation, then the inverse time turns valve plate 3
The dynamic channel until being stopped and closing the valve body 1 by the limiting of limited block 4 and limited block 7.The gas of check-valves lower end in this way
Body will be blocked by check-valves, play the role of preventing lower section reverse flowing of air flows.
As shown in Figure 2,3, the inner left wall face of valve body 1 be equipped with a limited block 4, right side internal face on also be provided with a limit
Position block 7 arrives the axial location of the vertical valve body 1 and motionless to limit 3 Plane Rotation of valve plate, so as to the valve body 1 described in closing
Channel.The main function of left and right sides setting limited block is the position limited when valve plate is closed, 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 is closed
Effect.Certainly, if valve plate and the valve body accuracy of manufacture are enough, can also one piece of limited block be set in the left or right side of valve body 1,
As long as the axial location that can limit 3 Plane Rotation of valve plate to the vertical valve body 1 is motionless.It is 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 on the internal face of valve body 1.The water that valve plate is in
During flat detent position, which can be set to the top of valve plate 3, can also be set to 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 limiting the angle that valve plate 3 is opened, prevent the angle that valve plate rotates when opening excessive.If rotational angle is more than 900When, valve
Plate 3 cannot rely on gravity and be restored 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 be turned over
The compressor of rotatable check-valves.
The utility model check-valves just can reset closing by its own gravity.Unit is reduced because gas flow cannot use
The limitation of gravity reduction type check-valves, convenient for complete machine structure arrangement and unit development.The check-valves eliminates the rapid wears such as spring
The use of part improves stability, the reliability of unit, reduces the after cost generated by repair.
Embodiment described above is primarily to illustrate the creating conception of the utility model, it is noted that for this
For the those of ordinary skill in field, without departing from the concept of the premise utility, several deformations can also be made and changed
Into these belong to the scope of protection of the utility model.
Claims (9)
1. a kind of convertible check-valves, including valve body（1）, valve plate（3）, which is characterized in that a 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 shaft（6）The area of side is small
Valve plate（3）, weight is more than 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 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）Channel；When under external force, valve plate（3）It rotates backward described in unlatching
Valve body（1）When, the angle that valve plate is opened is less than 900 。
2. convertible check-valves as described in claim 1, which is characterized in that the shaft（6）The small valve plate of the area of side
（3）Equipped with clump weight（5）, so that the valve plate weight of the side is more than the shaft（6）The weight of the big valve plate of the area of opposite side.
3. convertible check-valves as described in claim 1, which is characterized in that the valve plate（3）The closed valve that dead weight generates
（1）Closure torque be more than valve plate dead weight generate unlatching moment 5 ~ 15%.
4. convertible check-valves as described in claim 1, which is characterized in that the valve body（1）Side and/or opposite side
Internal face is equipped with limited block, to limit the valve plate（3）Plane Rotation is to the vertical valve body（1）Axial location without
The dynamic closing valve body（1）Channel.
5. convertible check-valves as described in claim 1, which is characterized in that the valve body（1）Internal face be equipped with open
Limited block（2）, to limit the valve plate（3）The angle that rotation is opened is less than 900 。
6. convertible check-valves as claimed in claim 5, which is characterized in that the valve plate（3）The angle of unlatching is 750~850。
7. convertible check-valves as claimed in claim 5, which is characterized in that the unlatching limited block（2）It is set to described
Valve plate（3）Top and/or valve plate（3）Lower section.
8. a kind of compressor, which is characterized in that including with the convertible check-valves of claim 1 ~ 7 any one of them.
9. a kind of air-conditioning equipment, which is characterized in that including with compressor according to any one of claims 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721539145.4U CN207500552U (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 |
|---|---|---|---|
| CN201721539145.4U CN207500552U (en) | 2017-11-17 | 2017-11-17 | Overturning type check valve, compressor and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500552U true CN207500552U (en) | 2018-06-15 |
Family
ID=62505183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721539145.4U Active CN207500552U (en) | 2017-11-17 | 2017-11-17 | Overturning type check valve, compressor and air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207500552U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763255A (en) * | 2017-11-17 | 2018-03-06 | 珠海格力电器股份有限公司 | Overturning type check valve, compressor and air conditioning equipment |
| CN111336283A (en) * | 2020-05-19 | 2020-06-26 | 烟台佳友电子机械科技有限公司 | Micro-pressure loss check valve |
| 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 |
-
2017
- 2017-11-17 CN CN201721539145.4U patent/CN207500552U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763255A (en) * | 2017-11-17 | 2018-03-06 | 珠海格力电器股份有限公司 | Overturning type check valve, compressor and air conditioning equipment |
| 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 |
| CN111336283A (en) * | 2020-05-19 | 2020-06-26 | 烟台佳友电子机械科技有限公司 | Micro-pressure loss check valve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |