CN204961894U - Eccentric ball valve of full latus rectum double containment hemisphere - Google Patents
Eccentric ball valve of full latus rectum double containment hemisphere Download PDFInfo
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- CN204961894U CN204961894U CN201520717482.2U CN201520717482U CN204961894U CN 204961894 U CN204961894 U CN 204961894U CN 201520717482 U CN201520717482 U CN 201520717482U CN 204961894 U CN204961894 U CN 204961894U
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- valve
- spheroid
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- disk seat
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Abstract
The utility model relates to an eccentric ball valve of full latus rectum double containment hemisphere, including valve body, disk seat, spheroid, valve rod, the spheroid adopts the hemisphere structure, and its hemisphere passageway circular arc diameter equals with valve body passageway diameter, have eccentric distance at the horizontal direction between valve rod central line and the valve body channel central line, the valve rod central line is located the place ahead position of spheroid direction of rotation for valve body channel central line, the ball sealing face adopts the carbide sealing ring at a spheroid surface overlaying protrusion sphere, the disk seat adopts the double containment face structure, and the sealed face of its inlayer adopts the hard disk seat of surfacing hard alloy formation on the disk seat, and outer sealed face adoption is inlayed dress soft seal cast and is become soft disk seat on the disk seat. Have good, the characteristics such as discharge coefficient is high, resistance to wear, antiscour, long service life of circulation characteristic. Be applicable to the high polishing machine medium operating mode of trades such as electric power, metallurgy.
Description
Technical field
The utility model belongs to valve field, particularly relates to a kind of ball valve.The utility model is applicable to the high abrasive media operating mode of the industry such as electric power, metallurgy.
Background technique
Existing semispherical valve is generally single sealing diameter reduced structure, and its negotiability is poor, flow coefficient is low, sealing surface is easy to wear, working life is short.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, provides that a kind of circulation is good, flow coefficient is high, resistance to wears, the full-bore double-sealing hemisphere eccentric ball valve of antiscour, long service life.
The technical solution of the utility model comprises valve body, valve seat, spheroid, valve rod, and spheroid adopts semiglobe, its hemispheric channel arc diameter and valve channel equal diameters; Mainly have throw of eccentric in the horizontal direction between valve rod center line and valve channel center line, valve rod center line is positioned at the anterior position of spheroid sense of rotation relative to valve channel center line; Ball seal face adopts the hard alloy seal ring protruding sphere in spherome surface built-up welding one; Valve seat adopts double-sealing face structure, and in it, layer sealing surface adopts pile-up welding hard alloy on valve seat to form hard valve seat, and outer layer sealing surface adopts setting-in soft seal circle on valve seat to form soft valve seat.
The utility model has the advantages that: spheroid passage adopts full-bore structure, improve trafficability performance; Adopt eccentric structure between valve rod center line and valve channel center line, reduce sealing surface and open and close friction; Ball seal face is the hard alloy seal ring protruding sphere, strikes off the coking material on sealing surface of seat in opening-closing process; Valve seat adopts double-sealing face structure.Have that flow characteristics is good, flow coefficient is high, resistance to wear, the feature such as antiscour, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 valve body, 2 spheroids, 3 valve seats, 4 soft valve seats, 5 hard valve seats, 6 hard alloy seal rings, 7 valve rods.
Embodiment
Full-bore double-sealing hemisphere eccentric ball valve as shown in Figure 1, comprise valve body 1, valve seat 3, spheroid 2, valve rod 7, spheroid 2 adopts semiglobe, its hemispheric channel arc diameter is equal with valve body 1 channel diameter, spheroid 2 passage and valve body 1 passage is made to form current global mechanism passage when opening, medium is little by flow resistance during spheroid 2 passage, and spheroid 2 upper end is fixedly connected with valve rod 7, and spheroid 2 lower end is arranged in valve body 1 axis hole by rotating shaft; In the horizontal direction there is throw of eccentric between valve rod 7 center line and valve body 1 channel centerline, described substantially horizontal is namely perpendicular to the direction of valve rod 7 center line, valve rod 7 center line is positioned at the anterior position of spheroid 2 sense of rotation relative to valve body 1 channel centerline, namely the spheroid 2 that spheroid 2 gyration center line is positioned at valve body 1 channel centerline closes sense of rotation side, when spheroid 2 is closed and valve seat 3 compress gradually, and when opening and valve seat 3 depart from gradually; Spheroid 2 sealing surface adopts the hard alloy seal ring 6 protruding sphere in spheroid 2 surface overlaying one, the outer shroud profile of this hard alloy seal ring 6 plays scraper effect to valve seat 3 sealing surface in spheroid 2 opening-closing process, strike off the foreign material sticking to valve seat 3 sealing surface and be, sealing surface scratch in opening-closing process is reduced on surface; Valve seat 3 adopts double-sealing face structure, and in it, layer sealing surface adopts pile-up welding hard alloy on valve seat 3 to form hard valve seat 5, and outer layer sealing surface adopts setting-in soft seal circle on valve seat 3 to form soft valve seat 4.
Claims (1)
1. a full-bore double-sealing hemisphere eccentric ball valve, comprise valve body (1), valve seat (3), spheroid (2), valve rod (7), spheroid (2) adopts semiglobe, and its hemispheric channel arc diameter is equal with valve body (1) channel diameter; It is characterized in that having throw of eccentric in the horizontal direction between valve rod (7) center line and valve body (1) channel centerline, valve rod (7) center line is positioned at the anterior position of spheroid (2) sense of rotation relative to valve body (1) channel centerline; Spheroid (2) sealing surface adopts the hard alloy seal ring (6) protruding sphere in spheroid (2) surface overlaying one; Valve seat (3) adopts double-sealing face structure, in it, layer sealing surface adopts and forms hard valve seat (5) at the upper pile-up welding hard alloy of valve seat (3), and outer layer sealing surface adopts and forms soft valve seat (4) at the upper setting-in soft seal circle of valve seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717482.2U CN204961894U (en) | 2015-09-14 | 2015-09-14 | Eccentric ball valve of full latus rectum double containment hemisphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717482.2U CN204961894U (en) | 2015-09-14 | 2015-09-14 | Eccentric ball valve of full latus rectum double containment hemisphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961894U true CN204961894U (en) | 2016-01-13 |
Family
ID=55056963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520717482.2U Active CN204961894U (en) | 2015-09-14 | 2015-09-14 | Eccentric ball valve of full latus rectum double containment hemisphere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961894U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840857A (en) * | 2016-06-13 | 2016-08-10 | 江苏大学 | Rotary four-eccentricity ball valve |
| CN107763241A (en) * | 2017-11-28 | 2018-03-06 | 西铁阀门科技有限公司 | The universal automatic compensation valve seat side valve cap-type valve of Bidirectional pressure |
| CN110469688A (en) * | 2019-09-11 | 2019-11-19 | 浙江联大阀门有限公司 | Full-diameter eccentric hemisphere valve |
| CN113048260A (en) * | 2021-04-07 | 2021-06-29 | 沪航科技集团有限公司 | Eccentric half-ball valve capable of reducing valve seat abrasion |
-
2015
- 2015-09-14 CN CN201520717482.2U patent/CN204961894U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840857A (en) * | 2016-06-13 | 2016-08-10 | 江苏大学 | Rotary four-eccentricity ball valve |
| CN107763241A (en) * | 2017-11-28 | 2018-03-06 | 西铁阀门科技有限公司 | The universal automatic compensation valve seat side valve cap-type valve of Bidirectional pressure |
| CN107763241B (en) * | 2017-11-28 | 2023-09-01 | 西铁阀门科技有限公司 | Bidirectional pressure universal automatic compensation valve seat side valve cover type valve |
| CN110469688A (en) * | 2019-09-11 | 2019-11-19 | 浙江联大阀门有限公司 | Full-diameter eccentric hemisphere valve |
| CN113048260A (en) * | 2021-04-07 | 2021-06-29 | 沪航科技集团有限公司 | Eccentric half-ball valve capable of reducing valve seat abrasion |
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