CN204493783U - A kind of ball valve with scraper - Google Patents
A kind of ball valve with scraper Download PDFInfo
- Publication number
- CN204493783U CN204493783U CN201520127679.0U CN201520127679U CN204493783U CN 204493783 U CN204493783 U CN 204493783U CN 201520127679 U CN201520127679 U CN 201520127679U CN 204493783 U CN204493783 U CN 204493783U
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- China
- Prior art keywords
- valve
- spring
- scraper
- seat
- spheroid
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Abstract
The utility model provides a kind of ball valve with scraper, relates to valve technology field.It comprises valve body, spheroid and valve gap, and valve gap is socketed with spring seat and valve seat, and valve seat is adjacent to mutually with spring seat, and valve seat is provided with metal sealing layer, and metal sealing layer coordinates with ball seal, and valve seat is elasticly connected with scraper, and scraper matches with spherome surface.The utility model solves prior art ball valve sealing face attachment dust granules affects the technical problem that sealability reduces ball valve working life.The utility model beneficial effect is: spheroid scraper in opening-closing process can remove the booty sticked on spheroid, guarantees that graininess impurity does not enter sealing surface of seat with spheroid, reduces the open and close torque of ball valve, improves the working life of ball valve.Scraper and metal sealing layer form double seal to spheroid, make ball valve sealing more reliable.Improve the serviceability temperature of valve, ensure the sealability of ball valve under high pressure or ultrahigh pressure and working life.
Description
Technical field
The utility model relates to valve technology field, especially relates to a kind of shape metallic leak-proof structure of ball valve.
Background technique
Ball valve widely uses in industries such as oil, chemical industry, thermoelectricitys.The process system pipeline of these industries has the features such as high temperature, high pressure, high flow rate, dust operating mode, high to the seal request of ball valve.The valve seat of conventional ball valve and spheroid adopt soft sealing material, are difficult to adapt to high temperature and dust operating mode.Along with the manufacturing process of metal o-ring achieves rapid progress, for the application of metal o-ring on ball valve provides technical support.Chinese patent Authorization Notice No. CN201810804U, on April 27 2011 notice of authorization date, the utility model patent that name is called " a kind of all-metal bidirectional eccentric ball valve " is exactly a kind of technological scheme wherein.It comprises valve body, stationary axle, valve gap, spheroid, valve rod, upper seal support, valve body bolt valve gap, unsettled sandwiched spheroid in valve body, spheroid is placed in valve body by stationary axle and valve lever clamp, spheroid both sides are respectively equipped with valve seat, and a valve seat is arranged on inside valve gap, and another valve seat is arranged on inside valve body, two valve seats are respectively equipped with hard alloy layer, spheroid arranges hard alloy layer; Hard alloy layer on valve seat is arranged on inside valve seat; Hard alloy layer on spheroid is arranged on the hard alloy layer opposite position on spheroid radially outer edge and valve seat.Valve seat and spheroid are sealed by hard alloy layer, make ball valve be applicable to high-temperature field and use.In the occasion of some high temperate zone dust bad working environments bars, dust granules can be attached to sealing layer surface, and this not only has influence on ball valve sealing, but also the open and close torque that can increase ball valve reduces the working life of ball valve.
Summary of the invention
The technical problem that sealability reduces ball valve working life is affected in order to solve ball valve sealing face attachment dust granules in prior art, the utility model provides a kind of ball-valve structure, can remove the booty sticked on spheroid and make the more reliable ball valve longer service life of ball valve sealing.
The technical solution of the utility model is: a kind of ball valve with scraper, it comprises valve body, the spheroid arranged in valve body, the valve gap that is connected with valve seal, valve gap is socketed with spring seat and valve seat, valve seat is adjacent to mutually with spring seat, valve seat is provided with metal sealing layer, metal sealing layer coordinates with ball seal, and valve seat is elasticly connected with scraper, and scraper matches with spherome surface.Spheroid scraper in opening-closing process can remove the booty sticked on spheroid, guarantees that the impurity of graininess does not enter sealing surface of seat with spheroid, reduces the open and close torque of ball valve, improves the working life of ball valve.Scraper and metal sealing layer form double seal to spheroid, make ball valve sealing more reliable.
As preferably, scraper is provided with spring storehouse, and spring storehouse is connected with spring, and valve gap is also socketed with pressure ring, and pressure ring and valve seat are fixed, and scraper is connected with pressure ring by spring; Scraper is connected with valve seat elasticity, and scraper is to spheroid pretightening force, so that scraping sticks to the booty on spheroid table, when running into the booty that can not strike off, scraper is initiatively retracted, and reduces the open and close torque of ball valve.
As preferably, spring seat is provided with bullet pad groove, and bullet pad groove is connected with belleville spring, and belleville spring is connected with valve gap elasticity; Valve seat, to spheroid pretightening force, improves sealability.
As preferably, valve seat is provided with spring housing, and spring housing is connected with C shape spring, and C shape spring is connected with valve gap elasticity; Valve seat is axially removable with radial direction, makes valve seat and spheroid self-alignment, realizes automatic-sealed, and sealing is more reliable, meanwhile, reduces the difficulty of processing of valve, cuts down finished cost.The serviceability temperature of valve can reach more than 350 DEG C, and solve the Sealing such as graphite under high flow rate operating mode, after having leakage trend, graphite seal is washed the defect of (going out Heisui River) very soon, ensures the sealability of ball valve under high pressure or ultrahigh pressure and working life.
As preferably, valve seat is that discoid side-looking becomes " ㄈ " shape, and spring housing is the groove circle with valve seat concentric, and be provided with exterior seal ring between spring housing and valve seat cylindrical, the side corresponding with spring housing is provided with inner seal ring; Avoid the stolen goods such as dust and graininess to enter in spring housing and cause C shape spring failure or wearing and tearing, ensure ball valve safe and reliable Long-Time Service and operation under the mixture condition containing dust or graininess, the working life that ensure that valve of maximum possible.
Compared with prior art, the beneficial effects of the utility model are: spheroid scraper in opening-closing process can remove the booty sticked on spheroid, guarantee that graininess impurity does not enter sealing surface of seat with spheroid, reduce the open and close torque of ball valve, improve the working life of ball valve.Scraper and metal sealing layer form double seal to spheroid, make ball valve sealing more reliable.Improve the serviceability temperature of valve, more than 350 DEG C can be reached, solve the Sealing such as graphite under high flow rate operating mode, after having leakage trend, graphite seal is washed the defect of (going out Heisui River) very soon, ensures the sealability of ball valve under high pressure or ultrahigh pressure and working life.Many places are dust-proof, ensure ball valve safe and reliable Long-Time Service under the mixture condition containing dust or graininess, the working life that ensure that valve of maximum possible.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model sectional view;
The sectional view that accompanying drawing 2 is overlooked for Fig. 1;
Accompanying drawing 3 is the enlarged view of A in Fig. 2.
In figure: 1-valve body; 2-spheroid; 3-valve gap; 4-spring seat; 5-valve seat; 6-scraper; 7-valve rod; 8-pressure ring; 41-valve bonnet seal circle; 42-belleville spring; 51-C shape spring; 52-exterior seal ring; 53-metal sealing layer; 54-inner seal ring; 61-spring; 62-blade surface.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1,2 and 3, a kind of ball valve with scraper, it comprises valve body 1, spheroid 2 and valve gap 3.Spheroid 2 is arranged in valve body 1.The upper end of spheroid 2 connects valve rod 7, and valve rod 7 upper end is stretched out outside valve body 1 and is connected with valve-opening mechanism (not shown).Valve gap 3 is cavity body structure, and valve gap 3 end is stepped.Valve gap 3 is tightly connected by screw and valve body 1.Spring seat 4, valve seat 5 and pressure ring 8 is socketed with in the stepped cavity of valve gap 3.Spring seat 4 is in circular, and spring seat 4 left surface is provided with bullet pad groove, and bullet pad geosynclinal concave falls into spring seat 4 left surface.Bullet pad groove is connected with belleville spring 42, and belleville spring 42 is connected with valve gap 3 elasticity.Belleville spring 42 embeds bullet pad groove, and bullet pad groove is exposed in belleville spring 42 left side, and the side of belleville spring 42 left side and valve gap 3 stepped shaft cavity is adjacent to.Between bullet pad groove and spring seat 4 cylindrical, bullet pad groove the same side, spring seat 4 is connected with valve bonnet seal circle 41, prevents the booty such as dust and graininess from invading bullet pad groove, guarantees that belleville spring 42 can not lose efficacy.Valve seat 5 is that discoid side-looking becomes " ㄈ " shape.Valve seat 5 is adjacent to mutually with spring seat 4.Right side wall and valve seat 5 left side wall of spring seat 4 are adjacent to.Valve seat 5 is provided with spring housing, and spring housing is the groove circle with valve seat 5 concentric.Spring housing is positioned at the left side wall of valve seat 5 and the joint of valve gap 3.Spring housing is connected with C shape spring 51, C shape spring 51 and is connected with valve gap 3 elasticity.C shape spring cross section is c-shaped, and breach is towards spring seat 4.Exterior seal ring 52 is provided with between spring housing and valve seat 5 cylindrical.Valve seat 5 left side wall establishes the outer groove circle with valve seat 5 concentric near valve seat 5 cylindrical, and outer groove circular diameter is greater than spring housing's groove circular diameter.Exterior seal ring 52 is inserted in outer groove circle.When spring seat 4 right flank and valve seat 5 left surface are adjacent to, exterior seal ring 52 prevents the booty such as dust and graininess from spring seat 4 and valve seat 5 joint invasion spring housing.Valve seat 5 side corresponding with spring housing is provided with inner seal ring 54.Valve seat 5 right flank establishes the inner groovy circle with valve seat 5 concentric, inserts inner seal ring 54 in inner groovy circle.Inner seal ring 54 is ring, and cylindrical and left surface and valve seat 5 are adjacent to, and inner circle and valve gap 3 are adjacent to, and right flank and pressure ring 8 left surface are adjacent to.Inner seal ring 54 prevents the booty such as dust and graininess from valve seat 5 and valve gap 3 joint invasion spring housing.Valve seat 5 is provided with metal sealing layer 53, and metal sealing layer 53 and spheroid 2 are sealed and matched.Metal sealing layer 53 is spherical concave surface, equal with bulb diameter with spheroid 2 shape.When closing valve, metal sealing layer 53 and spheroid 2 are tightly connected; During valve opening, metal sealing layer 53 and spheroid 2 are thrown off.Valve seat 5 is elasticly connected with scraper 6, and scraper 6 matches with spheroid 2 surface.Scraper 6 is roughly in the form of annular discs, and cylindrical is connected with blade surface 62.Blade surface 62 is spherical concave surface, equal with bulb diameter with spheroid 2 shape.Close in valve, blade surface 62 sidepiece scrapes the booty of spheroid 2 surface adhesion; When valve cuts out, blade surface 62 and spheroid 2 are tightly connected.Scraper 6 is provided with spring storehouse, spring storehouse depression scraper 6 left surface.Spring storehouse is connected with spring 61.Spring 61 right part embeds spring storehouse.Pressure ring 8 is fixed with valve seat 5, and pressure ring 8 left surface is fixed by screw and valve seat 5 right flank.Scraper 6 is connected with pressure ring 8 by spring 61.Spring 61 left end exposes spring storehouse and pressure ring 8 is adjacent to.Scraper 6 left surface is connected with pressure ring 8 right flank by screw, and scraper 6 left surface and pressure ring 8 right flank leave gap.
Claims (5)
1. the ball valve with scraper, it comprises valve body (1), the spheroid (2) arranged in valve body (1), the valve gap (3) that is tightly connected with valve body (1), it is characterized in that: described valve gap (3) is socketed with spring seat (4) and valve seat (5), valve seat (5) is adjacent to mutually with spring seat (4), valve seat (5) is provided with metal sealing layer (53), metal sealing layer (53) and described spheroid (2) are sealed and matched, described valve seat (5) is elasticly connected with scraper (6), and scraper (6) matches with described spheroid (2) surface.
2. a kind of ball valve with scraper according to claim 1, it is characterized in that: described scraper (6) is provided with spring storehouse, spring storehouse is connected with spring (61), valve gap (3) is also socketed with pressure ring (8), pressure ring (8) is fixed with valve seat (5), and scraper (6) is connected with pressure ring (8) by spring (61).
3. a kind of ball valve with scraper according to claim 1, it is characterized in that: described spring seat (4) is provided with bullet pad groove, bullet pad groove is connected with belleville spring (42), and belleville spring (42) is connected with valve gap (3) elasticity.
4. a kind of ball valve with scraper according to claim 1, it is characterized in that: described valve seat (5) is provided with spring housing, spring housing is connected with C shape spring (51), and C shape spring (51) is connected with valve gap (3) elasticity.
5. a kind of ball valve with scraper according to claim 1 or 4, it is characterized in that: described valve seat (5) becomes " ㄈ " shape for discoid side-looking, spring housing is the groove circle with valve seat (5) concentric, be provided with exterior seal ring (52) between spring housing and valve seat (5) cylindrical, the side corresponding with spring housing is provided with inner seal ring (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520127679.0U CN204493783U (en) | 2015-03-06 | 2015-03-06 | A kind of ball valve with scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520127679.0U CN204493783U (en) | 2015-03-06 | 2015-03-06 | A kind of ball valve with scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493783U true CN204493783U (en) | 2015-07-22 |
Family
ID=53573102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520127679.0U Expired - Fee Related CN204493783U (en) | 2015-03-06 | 2015-03-06 | A kind of ball valve with scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513502A (en) * | 2019-08-27 | 2019-11-29 | 志泰阀门有限公司 | Crystallize dedicated regulation valve |
| CN111425165A (en) * | 2020-04-29 | 2020-07-17 | 中国石油大学(华东) | Arc closed ball valve sealing device for pressure maintaining and coring of coal bed gas |
-
2015
- 2015-03-06 CN CN201520127679.0U patent/CN204493783U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513502A (en) * | 2019-08-27 | 2019-11-29 | 志泰阀门有限公司 | Crystallize dedicated regulation valve |
| CN111425165A (en) * | 2020-04-29 | 2020-07-17 | 中国石油大学(华东) | Arc closed ball valve sealing device for pressure maintaining and coring of coal bed gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150722 Termination date: 20170306 |