CN202852048U - Abrasion-resistant ball valve - Google Patents
Abrasion-resistant ball valve Download PDFInfo
- Publication number
- CN202852048U CN202852048U CN201220498805.XU CN201220498805U CN202852048U CN 202852048 U CN202852048 U CN 202852048U CN 201220498805 U CN201220498805 U CN 201220498805U CN 202852048 U CN202852048 U CN 202852048U
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- CN
- China
- Prior art keywords
- valve seat
- valve
- ring
- spring
- belleville spring
- 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 relates to an abrasion-resistant ball valve which is further provided with a dustproof gasket and a front valve seat sealing structure based on an ordinary ball valve. The front valve seat sealing structure is composed of a front valve seat, an upper sealing ring, an upper pressing ring, a belleville spring, a lower pressing ring and a lower sealing ring. The lower sealing ring, the lower pressing ring, the belleville spring, the upper pressing ring and the upper sealing ring are arranged on the front valve seat in a sleeved mode. The lower pressing ring is tightly pressed on the lower sealing ring through the belleville spring, and the upper pressing ring is tightly pressed on the upper sealing ring through the belleville spring. The dustproof gasket and a valve rod sleeve are arranged in a middle-size hole in a main valve body in sequence. The contact surface between a ball body and the front valve seat and the contact surface between the ball body and a back valve seat are both coated with tungsten carbide coatings in a sprayed mode. Pairing grind is carried out by the front valve seat, the back valve seat and the ball body to reach a matched relationship. The abrasion-resistant ball valve has the advantages that medium particles are prevented from getting into a spring cavity in high-scouring, high abradability mediums and other poor working condition occasions, and the invalidation of the spring caused by clamping the spring is avoided.
Description
Technical field
Relate to a kind of ball valve, particularly a kind of wear resistance ball valve.
Background technique
At present, in a lot of production fields such as production of polysilicon, crystalline silicon production, Coal Chemical Industry, to being in great demand of metal sealing wear resistance ball valve, yet, for height wash away, the comparatively abominable operating mode occasion such as high abrasiveness medium, ordinary ball valve can't solve.
Summary of the invention
In view of height washes away, the comparatively abominable operating mode occasions such as high abrasiveness medium, a kind of wear resistance ball valve is provided, concrete technological scheme is: a kind of wear resistance ball valve, comprise: valve rod, filler assembly, main valve body, guideway, rear valve base, the rear valve base pad, spheroid, auxiliary valve body, it is characterized in that: also comprise dustproof gasket and front valve base sealing structure, front valve base sealing structure is by front valve seat, upper seal ring, upper press ring, belleville spring, lower pressure ring, lower seal forms, described lower seal, lower pressure ring, belleville spring, upper press ring, upper seal ring, be set in successively on the front valve seat, make lower pressure ring compress lower seal by belleville spring, upper press ring compresses upper seal ring, and dustproof gasket and valve stem casing place in the mesopore of main valve body successively.
The surface of contact of spheroid and front valve seat and rear valve base has all sprayed tungsten carbide coating, and front valve seat, rear valve base and spheroid match to grind and reach matching relationship.
The beneficial effects of the utility model be wash away at height, the comparatively abominable operating mode occasion such as high abrasiveness medium prevented that media particle from entering in the spring chamber, avoids stuck spring to cause spring failure.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model A part enlarged view.
Embodiment
As shown in Figure 1, 2, rear valve base pad 7 and rear valve base 6 place in the endoporus of main valve body 3 successively, valve rod 1 places in main valve body 3 mesopores, connect valve stem casing 4 and valve rod 1 with pin, filler assembly 2 places in the mesopore of main valve body 3 and is sleeved on the valve rod 1, and spheroid 8 places in the main valve body 3, and the mesopore that makes valve rod 1 pass main valve body 3 is connected with spheroid 8, front valve base sealing structure 9 places in auxiliary valve body 10 chambeies, and auxiliary valve body 10 is placed on the main valve body 3, tightens up with fastening piece.Front valve base sealing structure 9 is comprised of front valve seat 9-1, upper seal ring 9-2, upper press ring 9-3, belleville spring 9-4, lower pressure ring 9-5, lower seal 9-6, described lower seal 9-6, lower pressure ring 9-5, belleville spring 9-4, upper press ring 9-3, upper seal ring 9-2, be set on the front valve seat 9-1 successively, make lower pressure ring 9-5 compress seal ring 9-2 on lower seal 9-6, the upper press ring 9-3 compression by belleville spring 9-4; Dustproof gasket 5 and valve stem casing 4 place in the mesopore of main valve body 3 successively.Spheroid 8 has all sprayed tungsten carbide coating with the surface of contact of front valve seat 9-1 and rear valve base 6, and front valve seat 9-1, rear valve base 6 match to grind with spheroid 8 and reach matching relationship.
Because medium is the abrasiveness granular, extreme hardness is carried out the processing of sprayed wc coating so designed to spheroid 8 and rear valve base 6, and front valve seat 9-1, rear valve base 6 is ground one to one with spheroid 8, thereby improves hardness and the sealability of sealing surface.Front valve seat 9-1 is equipped with a belleville spring 9-4 in the back side, and this spring can provide pretightening force, increases the reliability of sealing, has played and avoid the effect that causes valve to be stuck because of thermal expansion in worst hot case.But in the operating mode of some abrasiveness granule medium, particle can enter in the spring chamber, piles up; cause spring stuck, cause spring failure, so design has increased by a cover sealing configuration; prevent that media particle from entering in the spring chamber, effectively protected spring, make spring fully play effect.Enter granule medium for preventing between valve stem casing and the main valve body mesopore in addition, design has increased a dustproof gasket 5, constantly contacts with main valve body 3 with valve rod 1, thereby prevents that particle from entering, and has alleviated the wearing and tearing of valve rod 1 position.
Claims (2)
1. wear resistance ball valve, comprise: valve rod (1), filler assembly (2), main valve body (3), guideway (4), rear valve base (6), rear valve base pad (7), spheroid (8), auxiliary valve body (10), it is characterized in that: also comprise dustproof gasket (5) and front valve base sealing structure (9), front valve base sealing structure (9) is by front valve seat (9-1), upper seal ring (9-2), upper press ring (9-3), belleville spring (9-4), lower pressure ring (9-5), lower seal (9-6) forms, described lower seal (9-6), lower pressure ring (9-5), belleville spring (9-4), upper press ring (9-3), upper seal ring (9-2), be set in successively on the front valve seat (9-1), make lower pressure ring (9-5) compress lower seal (9-6) by belleville spring (9-4), seal ring (9-2) on upper press ring (9-3) compression; Dustproof gasket (5) and valve stem casing (4) place in the mesopore of main valve body (3) successively.
2. wear resistance ball valve according to claim 1, it is characterized in that: the surface of contact of described spheroid (8) and front valve seat (9-1) and rear valve base (6) has all sprayed tungsten carbide coating, and front valve seat (9-1), rear valve base (6) and spheroid (8) match grinding and reach matching relationship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220498805.XU CN202852048U (en) | 2012-09-27 | 2012-09-27 | Abrasion-resistant ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220498805.XU CN202852048U (en) | 2012-09-27 | 2012-09-27 | Abrasion-resistant ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852048U true CN202852048U (en) | 2013-04-03 |
Family
ID=47983253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220498805.XU Expired - Fee Related CN202852048U (en) | 2012-09-27 | 2012-09-27 | Abrasion-resistant ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202852048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799525A (en) * | 2018-09-10 | 2018-11-13 | 陕西博菲特流体控制装备制造有限公司 | Needle-like pressure reducing valve pressure reduction structure with double centering guide frames |
| CN110285231A (en) * | 2019-07-23 | 2019-09-27 | 欧维克集团有限公司 | A kind of new energy industry high temperature and pressure hard seal ball valve |
-
2012
- 2012-09-27 CN CN201220498805.XU patent/CN202852048U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799525A (en) * | 2018-09-10 | 2018-11-13 | 陕西博菲特流体控制装备制造有限公司 | Needle-like pressure reducing valve pressure reduction structure with double centering guide frames |
| CN108799525B (en) * | 2018-09-10 | 2024-02-23 | 陕西博菲特流体控制装备制造有限公司 | Needle type pressure reducing valve pressure reducing structure with double centering guide structures |
| CN110285231A (en) * | 2019-07-23 | 2019-09-27 | 欧维克集团有限公司 | A kind of new energy industry high temperature and pressure hard seal ball valve |
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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 |
Granted publication date: 20130403 Termination date: 20180927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |