CN206571989U - A kind of regulating valve of self-centering high sealing performance - Google Patents
A kind of regulating valve of self-centering high sealing performance Download PDFInfo
- Publication number
- CN206571989U CN206571989U CN201720270935.0U CN201720270935U CN206571989U CN 206571989 U CN206571989 U CN 206571989U CN 201720270935 U CN201720270935 U CN 201720270935U CN 206571989 U CN206571989 U CN 206571989U
- Authority
- CN
- China
- Prior art keywords
- self
- centering
- sealing ring
- regulating valve
- bonnet
- 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
Links
Abstract
The utility model discloses a kind of regulating valve of self-centering high sealing performance, the regulating valve includes valve body, bonnet is provided with valve body top, valve rod is provided with the middle part of bonnet, valve stem top is handwheel, has bone formula self-centering sealing ring in the middle part of the bonnet, and sealing ring is provided with the inner side of self-centering sealing ring and valve rod joint, pressing plate is provided with the top of self-centering sealing ring, pressing plate is connected with bonnet.The utility model can effectively control the distance between sealing ring and valve rod, and the gland for solving regulating valve applies axial compressive force to filler, filler unbalance stress, the radial load of generation, cause regulating valve to open and close mill sassafras power big, the problem of filler local leakage.
Description
Technical field
The utility model is related to a kind of regulating valve, specifically self-centering regulating valve.
Background technology
Regulating valve also known as control valve, in industrial automation process control field, are exported by receiving regulation unit
Control signal, go to change the final control element of rate-of flow, pressure, temperature, the technological parameter such as liquid level by power operation.
Typically it is made up of executing agency and valve.If by stroke feature, regulating valve can be divided into Direct Travel and angle stroke；Match somebody with somebody by it and hold
The power that row mechanism is used, can be divided into pneumatic control valve, electric control valve, three kinds of hydraulic adjusting valve；By its function and characteristic
It is divided into three kinds of linear characteristic, equal percentage characteristics and parabolic characteristic.Regulating valve is applied to empty gas and water, steam, various corrosivity
The media such as medium, mud, oil product.
The filler of regulating valve loads after stuffing-box, and axial compressive force is applied to it through gland.Due to the plasticity of filler, make it
Radial load is produced, and is in close contact with valve rod, but this contact is not highly uniform.The pine of some location contacts, has
Location contacts is tight a bit, or even some positions are not in contact with.In use, valve rod is existed regulating valve between filler
Axial movement is named in relative motion, this motion.In use, with high temperature, high pressure and the strong fluid media (medium) of permeability
Influence, regulating valve stuffing-box is also to occur the more position of leakage phenomenon.The main cause for causing packing leaking is boundary leakage,
Seepage is there is also for weaving filler (pressure medium is leaked out along the micro gap between filler fibre).Valve rod is with filling out
Boundary leakage between material is due to the gradually decay of filler contact, caused by the reason such as filler self deterioration, at this moment pressure
Medium will be leaked out along the contact gap between filler and valve rod.
Utility model content
Utility model purpose：The utility model purpose, which is the provision of one kind, can solve regulating valve by causing after radial load
The regulating valve of the self-centering high sealing performance of filler local leakage.
To reach above-mentioned purpose, the technical solution of the utility model is a kind of regulating valve of self-centering high sealing performance, bag
Valve body is included, is provided with valve body top in the middle part of bonnet, bonnet and is provided with valve rod, valve stem top is handwheel, is had in the middle part of the bonnet
Bone formula self-centering sealing ring, is provided with sealing ring, in self-centering sealing ring in the inner side of self-centering sealing ring and valve rod joint
Top is provided with pressing plate, and pressing plate is connected with bonnet.
For enhancing sealing effectiveness, sealing ring is provided between the self-centering sealing ring top and pressing plate.
Best to reach sealing effectiveness, the sealing ring on the inside of the self-centering sealing ring has the road of upper, middle and lower three.
For enhancing sealing effectiveness, the self-centering sealing ring outside is provided with sealing ring with bonnet joint.
Best to reach sealing effectiveness, the sealing ring on the outside of the self-centering sealing ring with bonnet joint has upper, middle and lower
Three roads.
Further, the self-centering sealing ring bottom is provided with positioning step.
Further, the self-centering sealing ring top is provided with positioning step.
To strengthen sealing effectiveness, the self-centering sealing ring bottom is provided with sealing ring.
Counterbore or T-shaped hole are provided with the middle part of the bonnet, self-centering sealing ring is arranged in counterbore or T-shaped hole.
The pressing plate is connected by bolt with bonnet.
Beneficial effect：The utility model can effectively control the distance between sealing ring and valve rod, solve the pressure of regulating valve
Lid applies axial compressive force to filler, and filler unbalance stress, the radial load of generation causes regulating valve to open and close mill sassafras power greatly, filler office
The problem of portion is leaked.
Brief description of the drawings
Fig. 1 is the utility model structural representation, and 8 be valve element in figure.
Embodiment
Below according to specific embodiment, the utility model is expanded on further.
As shown in figure 1, a kind of regulating valve of self-centering high sealing performance, including valve body 1, it is provided with bonnet on the top of valve body 1
2, the middle part of bonnet 2 is provided with valve rod 3, and the top of valve rod 3 is handwheel 4, and the bottom of valve rod 3 is valve element 8, and the middle part of bonnet 2 is provided with counterbore or T-shaped
Hole, is provided with bone formula self-centering sealing ring 6, in the inner side of self-centering sealing ring 6 and the joint of valve rod 3 in counterbore or T-shaped hole
Provided with upper, middle and lower three seals circle 7, upper, middle and lower three seals circle 7 is provided with the outside of self-centering sealing ring 6 and bonnet joint,
The top of self-centering sealing ring 6 be provided with pressing plate, 5, between self-centering sealing ring 6 and bonnet 5 be provided with sealing ring 7, making by oneself
The bottom of heart sealing ring 6 is provided with sealing ring 7, in the bottom, top or top and the bottom of self-centering sealing ring 6 simultaneously provided with positioning table
Rank 9.
Described above is only preferred embodiment of the present utility model, it should be pointed out that：For the technology people of the art
For member, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of regulating valve of self-centering high sealing performance, including valve body (1), bonnet (2), bonnet are provided with valve body (1) top
(2) middle part is provided with valve rod (3), and valve stem top is handwheel (4), it is characterised in that：Bone formula self-centering is provided with the middle part of the bonnet (2)
Sealing ring (6), is provided with sealing ring (7), in self-centering sealing ring in the inner side of self-centering sealing ring (6) and valve rod (3) joint
(6) top is provided with pressing plate (5), and pressing plate (5) is connected with bonnet (2).
2. a kind of regulating valve of self-centering high sealing performance according to claim 1, it is characterised in that：The self-centering sealing
Sealing ring (7) is provided between ring (6) top and pressing plate (5).
3. a kind of regulating valve of self-centering high sealing performance according to claim 1, it is characterised in that：The self-centering sealing
Sealing ring (7) on the inside of ring (6) has the road of upper, middle and lower three.
4. a kind of regulating valve of self-centering high sealing performance according to claim 1, it is characterised in that：The self-centering sealing
On the outside of ring (6) sealing ring (7) is provided with bonnet (2) joint.
5. a kind of regulating valve of self-centering high sealing performance according to claim 4, it is characterised in that：The self-centering sealing
Sealing ring (7) on the outside of ring (6) with bonnet (2) joint has the road of upper, middle and lower three.
6. a kind of regulating valve of self-centering high sealing performance according to claim 1, it is characterised in that：The self-centering sealing
Ring (6) bottom is provided with positioning step (9).
7. a kind of regulating valve of self-centering high sealing performance according to claim 1, it is characterised in that：The self-centering sealing
Ring (6) top is provided with positioning step (9).
8. a kind of regulating valve of self-centering high sealing performance according to claim 1, it is characterised in that：The self-centering sealing
Ring (6) bottom is provided with sealing ring (7).
9. a kind of regulating valve of self-centering high sealing performance according to claim 1, it is characterised in that：In the bonnet (2)
Portion is provided with counterbore or T-shaped hole, and self-centering sealing ring (6) is arranged in counterbore or T-shaped hole.
10. a kind of regulating valve of self-centering high sealing performance according to claim 1, it is characterised in that：The pressing plate (5) is led to
Bolt is crossed to be connected with bonnet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720270935.0U CN206571989U (en) | 2017-03-20 | 2017-03-20 | A kind of regulating valve of self-centering high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720270935.0U CN206571989U (en) | 2017-03-20 | 2017-03-20 | A kind of regulating valve of self-centering high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571989U true CN206571989U (en) | 2017-10-20 |
Family
ID=60054417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720270935.0U Expired - Fee Related CN206571989U (en) | 2017-03-20 | 2017-03-20 | A kind of regulating valve of self-centering high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206571989U (en) |
-
2017
- 2017-03-20 CN CN201720270935.0U patent/CN206571989U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 |