CN206943465U - A kind of sealing device of slide valve - Google Patents
A kind of sealing device of slide valve Download PDFInfo
- Publication number
- CN206943465U CN206943465U CN201720580501.0U CN201720580501U CN206943465U CN 206943465 U CN206943465 U CN 206943465U CN 201720580501 U CN201720580501 U CN 201720580501U CN 206943465 U CN206943465 U CN 206943465U
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- CN
- China
- Prior art keywords
- backplate
- sealing ring
- ring
- sealing
- resettlement groove
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- Sliding Valves (AREA)
Abstract
The utility model discloses a kind of sealing device of slide valve, including valve body, resettlement groove is offered in valve body vertically, it is horizontal in valve body to offer the passage connected with resettlement groove, passage grafting in one end of resettlement groove is provided with sealing ring, sealing ring is provided with backplate close to the side elasticity of passage, and backplate side wall offers the through hole with sealing ring coaxial line.Sealing ring is placed into resettlement groove the utility model and grafting is arranged on passway, after flashboard enters the resettlement groove of valve body, the both sides of flashboard can promote backplate to the lateral movement of sealing ring one, elastic force between sealing ring and backplate will extrude and force flashboard remains most close state between backplate, passage and sealing ring, worn even if flashboard opens and closes to form backplate, backplate can be still close in flashboard side wall, avoid gap occur between sealing surface, prevent crude oil from revealing, therefore, the service life of slide valve can also be extended.
Description
Technical field
Pipeline valve field is the utility model is related to, more specifically, it relates to a kind of sealing device of slide valve.
Background technology
The transport of crude oil is completed by oil pipeline, wherein, slide valve plays a part of connecting or blocking medium in pipeline,
The slide valve long-time used at present oil leakage phenomenon can occur after using because poorly sealed.
In view of the above-mentioned problems, patent announcement number is CN2687440 Chinese patent, it is proposed that a kind of double envelope wedge-type flashboards
Valve, by " ten " font valve body, and the flashboard composition of the valve rod connection in main body, valve rod upper end is provided with handwheel, in valve rod
There is a cylindrical rod head lower end, in the groove for two flashboard convex words for being inserted in lower section, has in the lower end of flashboard and pushes up
Post, it is fixed on bolt on body base.
It is actual when opening and closing slide valve, seal can be installed, flashboard and seal phase-contact surface are sealing surface, lock in valve seat
In plate motion process, Relative friction is had between sealing surface, after repeatedly opening and closing, easy damaged between sealing surface, influences seal
Service life, because internal maintenance is relatively difficult, the service life for causing slide valve overall equally shortens.
Utility model content
For there is the problem of gap due to abrasion between sealing surface, the utility model purpose is to propose a kind of reduction
Gap between sealing surface, improves the sealing device of the slide valve of slide valve service life, and concrete scheme is as follows：
A kind of sealing device of slide valve, including valve body, offer resettlement groove in the valve body vertically, water in the valve body
It is opened flat and the passage connected with the resettlement groove, passage grafting in one end of the resettlement groove is provided with sealing
Ring, the sealing ring are provided with backplate close to the side elasticity of the passage, and the backplate side wall offers and the sealing ring
The through hole of coaxial line.
Pass through above-mentioned technical proposal, sealing ring is placed into resettlement groove and grafting is arranged on passway, flashboard enters valve
After the resettlement groove of body, the both sides of flashboard can promote backplate, and to the lateral movement of sealing ring one, the elastic force between sealing ring and backplate will squeeze
Press and force flashboard and most close state is remained between backplate, passage and sealing ring, even if flashboard is opened and closed to backplate shape
Into abrasion, backplate can be still close in flashboard side wall, avoided gap occur between sealing surface, prevented crude oil from revealing, so as to increase
The service life of slide valve is added.
Further, the sealing ring offers annular groove close to the side of the resettlement groove, is provided with the backplate
The retainer ring of the annular groove is can be inserted into, elastic ring is provided between the sealing ring and the backplate.
Pass through above-mentioned technical proposal, retainer ring slide in annular groove, thus the distance between backplate and sealing ring can be with
Regulation, on the one hand elastic ring plays sealing function, on the one hand plays a part of elastic recovery, when slide valve works, elastic ring
It is squeezed, backplate will be close on valve plate always.
Further, the one end of the retainer ring away from the backplate is provided with the baffle ring for sealing the annular groove.
Pass through above-mentioned technical proposal, baffle ring prevent from coming off between sealing ring and backplate during removing seal, and baffle ring plays
Separate the effect of annular groove inner space, there is certain air pressure in retention groove, avoid crude oil from sealing ring and backplate movable
Enter in gap in annular groove.
Further, the sealing ring is provided with shading ring close to the side of the backplate.
Pass through above-mentioned technical proposal, backplate due to that can have sliding on sealing ring, between certainly exist gap, shading ring
It is further to serve sealing function, reduce the situation that crude oil penetrates into gap.
Further, side of the sealing ring away from the resettlement groove, which is coaxially set, sealing ring.
Pass through above-mentioned technical proposal, when sealing ring is pressed on valve body, can slightly have one after being made due to sealing ring outer surface
A little out-of-flatnesses, the compression in face and face can have gap between sealing ring and valve body, when compressing sealing ring, elastic sealing
Circle can effectively make up these gaps.
Further, the passage is identical with the through-hole diameter.
Pass through above-mentioned technical proposal, can it not hindered when crude oil circulates out of valve body, velocity of liquid assets is most fast, to side wall
Impact is also minimum.
Further, the backplate is provided with chamfering close to the upper end of the resettlement groove side.
Pass through above-mentioned technical proposal, after backplate is installed in place, width of the distance between the relative backplate certainly less than flashboard
Degree, flashboard is facilitated to insert between backplate by chamfering.
Compared with prior art, the beneficial effects of the utility model are as follows：
Flashboard moves up and down in valve body to be played a part of opening and closing slide valve, and elastic ring forces backplate to be remained with flashboard
State is adjacent to, reduces because relative motion causes the situation of abrasion, gap increase occur between sealing surface, effectively prevent crude oil
Leakage, so as to ensure the use of slide valve, increase the service life of slide valve.
Brief description of the drawings
Fig. 1 is a kind of sectional view of the sealing device of slide valve；
Fig. 2 is A portions partial enlarged drawing in Fig. 1.
Accompanying drawing mark：1st, valve body；2nd, resettlement groove；3rd, passage；4th, sealing ring；5th, backplate；6th, through hole；7th, annular groove；8th, it is solid
Determine ring；9th, elastic ring；10th, baffle ring；11st, shading ring；12nd, sealing ring；13rd, chamfering.
Embodiment
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, with reference to embodiment and attached
The utility model is described in further detail for figure, but embodiment of the present utility model is not limited only to this.
A kind of sealing device of slide valve, as shown in figure 1, including valve body 1, resettlement groove 2, valve are offered vertically in valve body 1
Level offers passage 3 in body 1, after resettlement groove 2 connects with passage 3 and is in inverted " t " font.Being moved up and down in resettlement groove 2 has lock
Plate.Flashboard plays a part of connecting and blocking the internal channel 3 of valve body 1.
As depicted in figs. 1 and 2, grafting is provided with sealing ring 4, sealing ring respectively in the both ends that passage 3 connects with resettlement groove 2
4 install with the coaxial line of passage 3, and side coaxial line of the sealing ring 4 away from resettlement groove 2 is fixed with sealing ring 12, and sealing ring 12 is remote
The side of sealing ring 4 is connected on the inwall of valve body 1.The problem of making precision in view of valve body 1 and the burnishing surface of sealing ring 4, sealing
The compression in face and face can have gap between ring 4 and valve body 1, by the sealing ring 12 with a point elasticity, make up these slightly
Gap, play a part of being brought into close contact.
As shown in Fig. 2 sealing ring 4 offers annular groove 7 close to the side of resettlement groove 2, annular groove 7 and sealing ring 4 are coaxial
Line, sealing ring 4 are provided with backplate 5 close to the side grafting of resettlement groove 2, and the retainer ring of pluggable annular groove 7 is fixed with backplate 5
8, be fixed with elastic ring 9 between sealing ring 4 and backplate 5, elastic ring 9 be fixed on fixed outer ring and with the coaxial line of retainer ring 8.Pass through
Retainer ring 8 is slid in the annular groove 7, realizes that the distance between backplate 5 and sealing ring 4 can be adjusted, the one side of elastic ring 9 plays
Sealing function, on the one hand play a part of elastic recovery, when slide valve works, elastic ring 9 is squeezed, and elastic force forces backplate
5 are outwardly opened so that backplate 5 is close on valve plate face always.One end coaxial line of the retainer ring 8 away from backplate 5 is fixed with baffle ring
10, baffle ring 10 is movable in annular groove 7, and the size of baffle ring 10 is just equal with annular groove 7.When baffle ring 10 prevents removing seal
Come off between sealing ring 4 and backplate 5, in addition, baffle ring 10 plays a part of separating the inner space of annular groove 7, have in retention groove
Certain air pressure, due to the presence of air pressure, and then crude oil can not enter annular groove 7 from the gap of sealing ring 4 and the activity of backplate 5
It is interior.Sealing ring 4 is fixed with shading ring 11 close to the side coaxial line of backplate 5, and the length of shading ring 11 is less than elastic ring 9, shading ring
11 are fixed on the inner side of retainer ring 8.Sealing function is further strengthened by shading ring 11, reduces the situation that crude oil penetrates into gap.
The side wall of backplate 5 offers the through hole 6 with the coaxial line of sealing ring 4, and passage 3 is identical with the diameter of through hole 6.When crude oil is in valve
When being flowed in body 1, can it not hindered through passage 3 and through hole 6, velocity of liquid assets is most fast, and the impact to side wall is also minimum.Due to
After backplate 5 is installed in place, the distance between relative backplate 5 certainly less than flashboard width, therefore, the backplate 5 being oppositely arranged
The upper end of opposite face is both provided with chamfering 13, facilitates flashboard to insert between backplate 5.
Working principle and beneficial effect of the present utility model is as follows：
Adjust the height of flashboard so that flashboard moves up and down in resettlement groove 2, plays a part of opening and closing slide valve.Work as lock
After between plate insertion backplate 5, pressure forces backplate 5 to be close on sealing ring 4, due to relative motion meeting between flashboard and valve body 1
Cause abrasion, the situation of gap increase occur between sealing surface, pass through the backplate of elastic ring 9 between backplate 5 and sealing ring 4
5 begin to keep being adjacent to state eventually under elastic force effect with flashboard, reduce gap, the leakage of crude oil are effectively prevent, so as to ensure
The effect of the device of sealing ring 4, likewise, extending the service life of slide valve.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of sealing device of slide valve, it is characterised in that including valve body (1), placement is offered vertically in the valve body (1)
Groove (2), the interior level of the valve body (1) offer the passage (3) connected with the resettlement groove (2), and the passage (3) is close to described
Grafting is provided with sealing ring (4) in one end of resettlement groove (2), and the sealing ring (4) sets close to the side elasticity of the passage (3)
Backplate (5) is equipped with, backplate (5) side wall offers the through hole (6) with the sealing ring (4) coaxial line.
2. the sealing device of a kind of slide valve according to claim 1, it is characterised in that the sealing ring (4) is close to institute
The side for stating resettlement groove (2) offers annular groove (7), and the fixation of the pluggable annular groove (7) is provided with the backplate (5)
Ring (8), elastic ring (9) is provided between the sealing ring (4) and the backplate (5).
3. the sealing device of a kind of slide valve according to claim 2, it is characterised in that the retainer ring (8) is away from institute
The one end for stating backplate (5) is provided with the baffle ring (10) for being used for sealing the annular groove (7).
4. the sealing device of a kind of slide valve according to claim 3, it is characterised in that the sealing ring (4) is close to institute
The side for stating backplate (5) is provided with shading ring (11).
5. the sealing device of a kind of slide valve according to claim 1, it is characterised in that the sealing ring (4) is away from institute
The side for stating resettlement groove (2) is coaxially set and has sealing ring (12).
A kind of 6. sealing device of slide valve according to claim 1, it is characterised in that the passage (3) and described logical
Hole (6) diameter is identical.
7. the sealing device of a kind of slide valve according to claim 1, it is characterised in that the backplate (5) is close to described
The upper end of resettlement groove (2) side is provided with chamfering (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720580501.0U CN206943465U (en) | 2017-05-23 | 2017-05-23 | A kind of sealing device of slide valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720580501.0U CN206943465U (en) | 2017-05-23 | 2017-05-23 | A kind of sealing device of slide valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943465U true CN206943465U (en) | 2018-01-30 |
Family
ID=61361060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720580501.0U Active CN206943465U (en) | 2017-05-23 | 2017-05-23 | A kind of sealing device of slide valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206943465U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173951A (en) * | 2020-02-04 | 2020-05-19 | 宁波文泽机电技术开发有限公司 | Gate valve |
-
2017
- 2017-05-23 CN CN201720580501.0U patent/CN206943465U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173951A (en) * | 2020-02-04 | 2020-05-19 | 宁波文泽机电技术开发有限公司 | Gate valve |
| CN111173951B (en) * | 2020-02-04 | 2021-07-20 | 浙江中昊阀门有限公司 | Gate valve |
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