CN208719420U - Self-compensating ball valve - Google Patents
Self-compensating ball valve Download PDFInfo
- Publication number
- CN208719420U CN208719420U CN201821296426.6U CN201821296426U CN208719420U CN 208719420 U CN208719420 U CN 208719420U CN 201821296426 U CN201821296426 U CN 201821296426U CN 208719420 U CN208719420 U CN 208719420U
- Authority
- CN
- China
- Prior art keywords
- closure gasket
- gasket groove
- spool
- valve
- sealing ring
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of self-compensating ball valves, including valve body, valve deck, spool, valve rod, valve body is fixedly connected with valve deck and is formed with the accommodating cavity for accommodating spool, the fluid channel being connected to accommodating cavity is provided on valve body and valve deck, closure gasket groove is provided at the one end being connected on two fluid channels with accommodating cavity, seal assembly is equipped in closure gasket groove, seal assembly includes valve seat and the elastic compensating part for redeeming after the prooving of valve seat, valve seat includes seal receptacle, the sealing ring for being contradicted with seal receptacle and being used to cooperate with seal spool, sealing ring is set between seal receptacle and spool, elastic compensating part is set between seal receptacle and closure gasket groove inner wall, one end of elastic compensating part and closure gasket groove inner wall are inconsistent, its other end and valve seat are inconsistent.The utility model provides a kind of more more stable than prior art sealing performance, and has self-compensating function, the ball valve that the service life is longer.
Description
Technical field
The utility model belongs to valve technology field, especially a kind of self-compensating ball valve.
Background technique
The sealing problem of valve is always very important problem, because of the run, drip, leak phenomenon overwhelming majority of valve
Occur in sealing station.Ball valve is to make opening and closing element (spool) with the sphere with circular through hole, and spool is rotated with valve rod, is opened with realizing
The valve of movement is closed, the fluid resistance of ball valve is small, have the advantages that have switch fast, thus the scope of application of ball valve is very wide.Valve
While bar drives Spool rotating, so that spool directly rubs with valve seat, the sealing element on valve seat if things go on like this will cause
Serious wear, so that the generation gap between sealing element on valve body and valve seat leads to medium so as to cause sealing performance reduction
Leakage, in addition in floating ball valve field, due to needing by squeezing by the pressure of medium spool, to make
Be in close contact between spool and valve seat, but the pressure of medium is once reduce, will also result in cause spool and valve seat it
Between sealing performance reduce, also result in medium and leak.
Summary of the invention
It is a kind of more more stable than prior art sealing performance that in order to overcome the deficiencies of the prior art, the utility model provides,
And has self-compensating function, the ball valve that the service life is longer.
To achieve the goals above, the technical solution adopted in the utility model is: a kind of self-compensating ball valve, including valve body,
Valve deck, spool, valve rod, the valve body are fixedly connected with valve deck and are formed with the accommodating cavity for accommodating spool, the valve body and
The fluid channel being connected to accommodating cavity is provided on valve deck, at the one end being connected on described two fluid channels with accommodating cavity
Be provided with closure gasket groove, seal assembly be equipped in the closure gasket groove, it is characterised in that: the seal assembly include valve seat with
And the elastic compensating part for redeeming after the prooving of valve seat, the valve seat include seal receptacle, with seal receptacle contradict and be used for
With the sealing ring of seal spool cooperation, the sealing ring is set between seal receptacle and spool, and the elastic compensating part is set to
Between seal receptacle and closure gasket groove inner wall, one end of the elastic compensating part and closure gasket groove inner wall are inconsistent, the other end with
Valve seat is inconsistent and applies a power perpendicular with the pivot center of valve rod to valve seat, which makes between valve seat and spool simultaneously
It is in close contact.
Using the above scheme, by being provided with the fluid channel being connected to accommodating cavity on valve body and valve deck, and
It is provided with closure gasket groove at the one end being connected on two fluid channels with accommodating cavity, is equipped with sealing group in the closure gasket groove
Part can play sealing function, prevent dielectric leakage, and the seal assembly includes valve seat and for playing compensation after the prooving of valve seat
The elastic compensating part of effect, the valve seat include seal receptacle and the sealing ring for cooperating with seal spool, and the sealing ring is set
It is placed between seal receptacle and spool, seal receptacle mainly plays support and sealing function, generallys use hard alloy and is fabricated, and seals
Ring can be manufactured using wear-resisting flexible material, and the elastic compensating part be set between seal receptacle and closure gasket groove inner wall can be with
After sealing ring is centainly worn, the sealing ring of abrasion is compensated by the elasticity capacity of elastic compensating part, so that close
Seal ring continues to keep contradicting with spool, to have the function that lasting seals so that the leakproofness of ball valve is more stable, ball valve more resistant to
With the service life is longer.
As the further setting of the utility model, the elastic compensating part is butterfly spring, and the closure gasket groove is by it
The first closure gasket groove and the second closure gasket groove, first sealing ring are disposed with towards one end of spool to another extreme direction
Adjoin stepped setting at inner wall between slot and the second closure gasket groove, the diameter of first closure gasket groove is greater than the second sealing
The diameter of annular groove, the seal receptacle are placed in the first closure gasket groove together with sealing ring, also axially extending on the seal receptacle to have
Annular seal convex block, the annular seal convex block are placed in in the second closure gasket groove, and the butterfly spring is sheathed on annular seal
Axial inner wall on convex block and with the first closure gasket groove is inconsistent, is provided with first on the axial end face of the annular seal convex block
Annular groove is provided with the second annular groove on the periphery wall of the annular seal convex block, is provided in first annular groove and the second sealing
The first inconsistent sealing ring of annular groove axial direction inner wall is provided in second annular groove inconsistent with the second closure gasket groove internal perisporium
The second sealing ring, is evenly equipped with several first grooves along its circumferential direction in first annular groove, setting is useful in first groove
In the first elastic component for contradicting the axial inner wall of the first sealing ring and the first closure gasket groove sufficiently.
Using the above scheme, it is set on annular seal convex block by butterfly spring, then in the side wall of annular seal block
And corresponding first sealing of the first annular groove and the second annular groove and institute is respectively set on one end end face of opposite valve body/valve deck
Circle and the second sealing ring, can make butterfly spring not avoid butterfly spring by dielectric corrosion during compensation in this way
Because by the problem of its compensation ability is had a greatly reduced quality is corroded, while being evenly equipped with several first grooves in the first annular groove inner circumferential,
Be provided with the first elastic component in the first groove, one end of first elastic component and annular seal convex block contradict, the other end with
First sealing ring contradict, it is such can be designed so that sealing ring generate abrasion after, even if pressure of the valve seat by butterfly spring
And axial dipole field is done to spool, it can also guarantee that the first sealing ring is axial with the second closure gasket groove under the action of the first elastic component
Inner wall is in close contact, and guarantees sealing performance.
It is recessed that several second are circumferentially evenly equipped with as the further setting of the utility model, on the internal perisporium of the closure gasket groove
Slot is provided with the second elastic component for contradicting sealing ring and spool sufficiently, second elastic component in second groove
To sealing ring apply one towards sealing ring center position power.
Using the above scheme, when the pressure medium in valve passage reduces, the second elastic component in the second groove can be with
To sealing ring apply one towards sealing ring center position power so that sealing ring can be in close contact with spool, avoid due to
Medium leads to dielectric leakage to the insufficient pressure of spool, further increases the sealing performance of valve.
As the further setting of the utility model, the abutting portion contradicted with spool is provided on the sealing ring, it is described
Abutting portion includes the second abutting portion for being in the first abutting portion of face contact with spool, contacting with spool in line.
Using the above scheme, it is contradicted respectively with spool by the first abutting portion and the second abutting portion, and uses face contact
It can prevent the fine particle in medium from entering on contact surface during valve core rotation with line contact two ways, prevent
Grain wears sealing ring, and dual-seal is it is also possible that sealing effect is more preferable, and such mode compares single face
It is smaller to contact its frictional resistance, spool is easier to rotate, and reduction friction, which also means that, can reduce abrasion, further extends
Service life.
The utility model is further described with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing 1 is the utility model specific embodiment structure sectional view；
Attached drawing 2 is the enlarged drawing of A not in Fig. 1；
Attached drawing 3 is the partial sectional view of the utility model specific embodiment valve body.
Specific embodiment
Specific embodiment of the utility model is as shown in Figure 1-3, a kind of self-compensating ball valve, including valve body 1, valve deck 2, spool
3, valve rod 4, the valve body 1 are fixedly connected with valve deck 2 and are formed with the accommodating cavity 5 for accommodating spool 3, the valve body 1 and valve
The fluid channel (11,12) being connected to accommodating cavity 5 is provided on lid 2, on described two fluid channels (11,12) and accommodating cavity
It is provided with closure gasket groove 6 at 5 one end being connected, seal assembly 7 is equipped in the closure gasket groove 6, the seal assembly 7 wraps
Include valve seat 71 and for valve seat 71 wear after redeeming elastic compensating part 72, the valve seat 71 include seal receptacle 711,
It is contradicted with seal receptacle 711 and the sealing ring 712 for cooperating with the sealing of spool 3, the sealing ring 712 is set to seal receptacle 711
Between spool 3, the elastic compensating part 72 is set between 6 inner wall of seal receptacle 711 and closure gasket groove, the elastic compensating part
72 one end and 6 inner wall of closure gasket groove are inconsistent, and the other end is inconsistent with valve seat 71 and applies one and valve rod 4 to valve seat 71
The perpendicular power of pivot center, the power make to be in close contact between valve seat 71 and spool 3 simultaneously.
In the present embodiment, the elastic compensating part 72 is butterfly spring, and the closure gasket groove 6 is by it towards spool 3
One end to another extreme direction is disposed with the first closure gasket groove 61 and the second closure gasket groove 62,61 He of the first closure gasket groove
Adjoin stepped setting at inner wall between second closure gasket groove 62, the diameter of first closure gasket groove 61 is greater than the second sealing
The diameter of annular groove 62, the seal receptacle 711 is placed in the first closure gasket groove 61 together with sealing ring 712, on the seal receptacle 711
It is also axially extending to have an annular seal convex block 713, the annular seal convex block 713 be placed in in the second closure gasket groove 62, the butterfly
Shape spring pocket is set on annular seal convex block 713 and, the annular seal inconsistent with the axial inner wall of the first closure gasket groove 61
It is provided with the first annular groove 7131 on the axial end face of convex block 713, is provided with second on the periphery wall of the annular seal convex block 713
Annular groove 7132 is provided with first sealing ring 8 inconsistent with the axial inner wall of the second closure gasket groove 62 in first annular groove 7131,
Second sealing ring 9 inconsistent with 62 internal perisporium of the second closure gasket groove, first ring are provided in second annular groove 7132
Several first grooves 71311 are evenly equipped with along its circumferential direction in slot 7131, are provided in first groove 71,311 first close for making
The first elastic component 71312 that the axial inner wall of seal 8 and the first closure gasket groove 61 sufficiently contradicts.
In the present embodiment, circumferentially it is evenly equipped with several second grooves 63 on the internal perisporium of the closure gasket groove 6, described second
The second elastic component 64 for contradicting sealing ring 712 and spool 3 sufficiently is provided in groove 63, second elastic component 64 is right
Power of the application of sealing ring 712 one towards 712 center position of sealing ring.
In the present embodiment, the abutting portion contradicted with spool 3 is provided on the sealing ring 712, the abutting portion includes
The second abutting portion 7122 for being in the first abutting portion 7121 of face contact with spool 3, being contacted with spool 3 in line.
The utility model is not limited to above-mentioned specific embodiment, and persons skilled in the art are according to the utility model public affairs
The content opened can be implemented the utility model or all using the utility model using other a variety of specific embodiments
Design structure and thinking, do simple change or change, both fall within the protection scope of the utility model.
Claims (4)
1. a kind of self-compensating ball valve, including valve body, valve deck, spool, valve rod, the valve body is fixedly connected with valve deck and is formed useful
The fluid channel being connected to accommodating cavity, described two streams are provided in the accommodating cavity of accommodating spool, on the valve body and valve deck
It is provided with closure gasket groove at the one end being connected on body channel with accommodating cavity, is equipped with seal assembly in the closure gasket groove,
Be characterized in that: the seal assembly includes valve seat and the elastic compensating part for redeeming after the prooving of valve seat, the valve
Seat includes seal receptacle, contradicts with seal receptacle and the sealing ring for cooperating with seal spool, the sealing ring are set to seal receptacle
Between spool, the elastic compensating part is set between seal receptacle and closure gasket groove inner wall, one end of the elastic compensating part
Inconsistent with closure gasket groove inner wall, the other end is inconsistent with valve seat and perpendicular with the pivot center of valve rod to valve seat application one
Power, which to be in close contact between valve seat and spool simultaneously.
2. self-compensating ball valve according to claim 1, it is characterised in that: the elastic compensating part is butterfly spring, described
Closure gasket groove is disposed with the first closure gasket groove and the second closure gasket groove, institute towards one end of spool to another extreme direction by it
It states and adjoins stepped setting at inner wall between the first closure gasket groove and the second closure gasket groove, the diameter of first closure gasket groove
Greater than the diameter of the second closure gasket groove, the seal receptacle is placed in the first closure gasket groove together with sealing ring, on the seal receptacle
It is also axially extending to have an annular seal convex block, the annular seal convex block be placed in in the second closure gasket groove, the butterfly spring set
Axial inner wall on annular seal convex block and with the first closure gasket groove is inconsistent, the axial end face of the annular seal convex block
On be provided with the first annular groove, be provided with the second annular groove on the periphery wall of the annular seal convex block, setting in first annular groove
There is first sealing ring inconsistent with the second closure gasket groove axial direction inner wall, is provided with and the second closure gasket groove in second annular groove
The second inconsistent sealing ring of internal perisporium, first annular groove is interior to be evenly equipped with several first grooves along its circumferential direction, and described first is recessed
The first elastic component for contradicting the axial inner wall of the first sealing ring and the first closure gasket groove sufficiently is provided in slot.
3. self-compensating ball valve according to claim 1 or 2, it is characterised in that: circumferential on the internal perisporium of the closure gasket groove
Several second grooves are evenly equipped with, the second elasticity for contradicting sealing ring and spool sufficiently is provided in second groove
Part, second elastic component to sealing ring apply one towards sealing ring center position power.
4. self-compensating ball valve according to claim 3, it is characterised in that: be provided on the sealing ring and spool conflict
Abutting portion, the abutting portion include the second abutting portion for being in the first abutting portion of face contact with spool, contacting with spool in line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821296426.6U CN208719420U (en) | 2018-08-13 | 2018-08-13 | Self-compensating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821296426.6U CN208719420U (en) | 2018-08-13 | 2018-08-13 | Self-compensating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719420U true CN208719420U (en) | 2019-04-09 |
Family
ID=65977314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821296426.6U Expired - Fee Related CN208719420U (en) | 2018-08-13 | 2018-08-13 | Self-compensating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208719420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081978A (en) * | 2019-06-14 | 2020-12-15 | 浙江三花制冷集团有限公司 | Control valve |
-
2018
- 2018-08-13 CN CN201821296426.6U patent/CN208719420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081978A (en) * | 2019-06-14 | 2020-12-15 | 浙江三花制冷集团有限公司 | Control valve |
| CN112081978B (en) * | 2019-06-14 | 2022-10-18 | 浙江三花商用制冷有限公司 | Control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 Termination date: 20200813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |