CN206723491U - From scale removal metal hard-sealing ball valve - Google Patents
From scale removal metal hard-sealing ball valve Download PDFInfo
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- CN206723491U CN206723491U CN201720408253.1U CN201720408253U CN206723491U CN 206723491 U CN206723491 U CN 206723491U CN 201720408253 U CN201720408253 U CN 201720408253U CN 206723491 U CN206723491 U CN 206723491U
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- valve
- valve seat
- ring
- sealing
- holddown spring
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Abstract
The utility model discloses one kind from scale removal metal hard-sealing ball valve,Including valve body,Valve seat,Spheroid,Valve rod and seal,Valve body is that left valve barrel and right valve barrel are screwed connection and formed,Valve seat is equipped with left valve barrel and right valve barrel,Valve seat is provided with scraper and contacted with spheroid,First sealing ring is placed between valve seat and valve body,Second sealing ring is placed between pressure ring and valve seat,First holddown spring is placed on installation valve body,One end of first holddown spring is contradicted on pressure ring,Pressure ring is promoted to press the second sealing ring,Valve seat includes valve seat body and valve seat mounting ring,Valve seat body is provided with female annular groove,Valve seat mounting ring is placed in annular groove and is threadedly coupled with valve seat body,Scraper is arranged in valve seat mounting ring and contacted with spheroid,When scraper damages,Valve seat mounting ring need to only be disassembled from valve seat,Ressembled again on valve seat after replacing,Without changing whole valve seat,So as to reduce the maintenance cost of ball valve.
Description
Technical field
Valve field is the utility model is related to, more specifically, it relates to a kind of from scale removal metal hard-sealing ball valve.
Background technology
One important application environment of hard seal ball valve is the device containing solid granulates material in medium.Plant running mistake
Some fine particles can be bonded on sphere and form fouling in medium in journey, and these microparticles can enter during valve switch
Enter between sphere and sealing surface of seat, grinding loss is caused to sealing surface, destroy the sealing property of valve.For this, people are in valve seat
A back scraper is designed on sealing surface, the design of back scraper can be during valve on and off by the knot on whole sphere
Dirt is fully erased, which reduces the grinding that granule foreign enters between sealing surface, substantially reduces the abrasion of sealing surface, extends
The service life of valve effectively removes the fouling on sphere in the switching process of valve.
There are the following problems in the prior art：Metal hard-sealing ball valve is after much time using, sealing surface of seat
The scraper at place may damage, and for the normal work of ball valve, generally require to change whole valve seat or bonnet, the maintenance of such valve
Cost is higher.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide one kind from scale removal metal hard-sealing ball
Valve, simple in construction, maintenance cost bottom.
To achieve the above object, the utility model provides following technical scheme：
For one kind from scale removal metal hard-sealing ball valve, including valve body, valve seat, spheroid, valve rod and seal, the valve body is a left side
Valve body and right valve barrel are screwed connection, are equipped with valve seat in left valve barrel and right valve barrel, the valve seat be provided with scraper with
Spheroid is contacted, and seal assembly is set between the valve body and valve seat, and the seal assembly is by the first sealing ring, the second sealing ring, pressure
Ring, the first holddown spring composition, first sealing ring is placed between valve seat and valve body, second sealing ring be placed in pressure ring and
Between valve seat, first holddown spring is placed on installation valve body, and one end of first holddown spring is contradicted on pressure ring, is promoted
Pressure ring presses the second sealing ring, and the valve seat includes valve seat body and valve seat mounting ring, and the valve seat body is provided with and carries interior spiral shell
The annular groove of line, the valve seat mounting ring are placed in annular groove and are threadedly coupled with valve seat body, and the scraper is arranged on valve
Contacted in seat mounting ring with spheroid.
The utility model is further set：The valve seat is provided with sealed groove, the sealed groove towards the end face of pressure ring
Cross section to be trapezoidal, the pressure ring is provided with lug boss, and second sealing ring is placed in sealed groove, and the pressure ring passes through projection
Portion compresses the second sealing ring.
The utility model is further set：The second holddown spring is provided between the valve seat and valve body, drives the close of valve seat
Front cover compresses spheroid, and second holddown spring is parallel with the center line of the first holddown spring.
The utility model beneficial effect：By the scraper set in valve seat mounting ring, to realize in valve opening and closing process
In scrape away spherome surface attachment medium purpose, so as to prevent that valve is stuck, ensure sealing surface do not destroyed by attachment.And
And when scraper damages, valve seat mounting ring need to only be disassembled from valve seat, ressemble valve seat after replacing again
On, without changing whole valve seat, so as to reduce the maintenance cost of ball valve.
Brief description of the drawings
Fig. 1 is a kind of sectional view from scale removal metal hard-sealing ball valve of the utility model；
Fig. 2 is A portions enlarged drawing in Fig. 1；
Fig. 3 is the sectional view of valve seat body.
Description of reference numerals：1st, valve body；11st, left valve barrel；12nd, right valve barrel；2nd, valve seat；21st, valve seat body；211st, annular is recessed
Groove；212nd, sealed groove；22nd, valve seat mounting ring；3rd, spheroid；4th, valve rod；5th, seal；6th, scraper；7th, seal assembly；71st,
One sealing ring；72nd, the second sealing ring；73rd, pressure ring；74th, the first holddown spring；75th, the second holddown spring.
Embodiment
1 to Fig. 3 the utility model one kind is described in further details from scale removal metal hard-sealing ball valve referring to the drawings.
It is a kind of from scale removal metal hard-sealing ball valve, including valve body 1, valve seat 2, spheroid 3, valve rod 4 and seal 5, the valve
Body 1 is that left valve barrel 11 and right valve barrel 12 are screwed connection, and valve seat 2 is equipped with left valve barrel 11 and right valve barrel 12, described
Valve seat 2 is provided with scraper 6 and contacted with spheroid 3, seal assembly 7 is set between the valve body 1 and valve seat 2, the seal assembly 7 is by the
One sealing ring 71, the second sealing ring 72, pressure ring 73, the first holddown spring 74 form, and first sealing ring 71 is placed in the He of valve seat 2
Between valve body 1, second sealing ring 72 is placed between pressure ring 73 and valve seat 2, and first holddown spring 74 is placed in installation valve
On body 1, one end of first holddown spring 74 is contradicted on pressure ring 73, promotes pressure ring 73 to press the second sealing ring 72, the valve
Seat 2 includes valve seat body 21 and valve seat mounting ring 22, and the valve seat body 21 is provided with female annular groove 211, institute
State valve seat mounting ring 22 and be placed in annular groove 211 and be threadedly coupled with valve seat body 21, the scraper 6 is arranged on valve seat mounting ring
Contact with spheroid 3 on 22, by the scraper 6 set in valve seat mounting ring 22, scraped away to realize during valve opening and closing
The medium purpose of the surface attachment of spheroid 3, so as to prevent that valve is stuck, ensure that sealing surface is not destroyed by attachment.Also, scraping
When knife 6 damages, valve seat mounting ring 22 need to only be disassembled from valve seat 2, is ressembled again on valve seat 2 after replacing,
Without changing whole valve seat 2, so as to reduce the maintenance cost of ball valve.
The valve seat 2 is provided with sealed groove 212 towards the end face of pressure ring 73, and the cross section of the sealed groove 212 is ladder
Shape, the pressure ring 73 are provided with lug boss, and second sealing ring 72 is placed in sealed groove 212, and the pressure ring 73 passes through lug boss
The second sealing ring 72 is compressed, effectively improves the sealing between pressure ring 73 and valve seat 2.
The second holddown spring 75 is provided between the valve seat 2 and valve body 1, drives the sealing surface compact spheroid 3 of valve seat 2, institute
It is parallel with the center line of the first holddown spring 74 to state the second holddown spring 75, will under the thrust of the second holddown spring 75
Valve seat 2 pushes spheroid 3 to, and valve seat 2 compresses with spheroid 3, produces enough seal pressure pretightning forces, to ensure spheroid 3 and valve seat 2
Excellent sealing.
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 (3)
1. for one kind from scale removal metal hard-sealing ball valve, including valve body, valve seat, spheroid, valve rod and seal, the valve body is left valve
Body and right valve barrel are screwed connection, and valve seat is equipped with left valve barrel and right valve barrel, and the valve seat is provided with scraper and ball
Body contact, seal assembly is set between the valve body and valve seat, the seal assembly by the first sealing ring, the second sealing ring, pressure ring,
First holddown spring is formed, and first sealing ring is placed between valve seat and valve body, and second sealing ring is placed in pressure ring and valve
Between seat, first holddown spring is placed on installation valve body, and one end of first holddown spring is contradicted on pressure ring, promotes pressure
Ring presses the second sealing ring, and the valve seat includes valve seat body and valve seat mounting ring, and the valve seat body is provided with and carries internal thread
Annular groove, the valve seat mounting ring is placed in annular groove and is threadedly coupled with valve seat body, and the scraper is arranged on valve seat
Contacted in mounting ring with spheroid.
2. it is according to claim 1 from scale removal metal hard-sealing ball valve, it is characterized in that：The valve seat is towards the end face of pressure ring
Provided with sealed groove, the cross section of the sealed groove is trapezoidal, and the pressure ring is provided with lug boss, and second sealing ring is placed in
Sealed groove, the pressure ring compress the second sealing ring by lug boss.
3. it is according to claim 1 from scale removal metal hard-sealing ball valve, it is characterized in that：It is provided between the valve seat and valve body
Second holddown spring, drive the sealing surface compact spheroid of valve seat, the center line of second holddown spring and the first holddown spring
It is parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408253.1U CN206723491U (en) | 2017-04-18 | 2017-04-18 | From scale removal metal hard-sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408253.1U CN206723491U (en) | 2017-04-18 | 2017-04-18 | From scale removal metal hard-sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723491U true CN206723491U (en) | 2017-12-08 |
Family
ID=60506044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720408253.1U Active CN206723491U (en) | 2017-04-18 | 2017-04-18 | From scale removal metal hard-sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206723491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667954A (en) * | 2019-02-20 | 2019-04-23 | 郑子叶 | A kind of spherome surface anti-coking ball valve |
-
2017
- 2017-04-18 CN CN201720408253.1U patent/CN206723491U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667954A (en) * | 2019-02-20 | 2019-04-23 | 郑子叶 | A kind of spherome surface anti-coking ball valve |
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