CN203743482U - High-medium-pressure eccentric semi-ball valve - Google Patents
High-medium-pressure eccentric semi-ball valve Download PDFInfo
- Publication number
- CN203743482U CN203743482U CN201420090060.2U CN201420090060U CN203743482U CN 203743482 U CN203743482 U CN 203743482U CN 201420090060 U CN201420090060 U CN 201420090060U CN 203743482 U CN203743482 U CN 203743482U
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- CN
- China
- Prior art keywords
- valve
- valve body
- shaft
- valve seat
- high pressure
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- 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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- Taps Or Cocks (AREA)
Abstract
The utility model relates to a high-medium-pressure eccentric semi-ball valve which comprises a valve body, an eccentric shaft, a lower valve shaft and a semi-ball valve element. The valve body is provided with an inlet and an outlet, the eccentric shaft is arranged on the upper portion of the valve body. The lower valve shaft is arranged on the lower portion of the valve body. The semi-ball valve element is arranged between eccentric shaft and the lower valve shaft. The upper end of the valve body is provided with a valve deck. The lower end of the valve body is provided with a lower end cover. The inner side of the wall of the inlet is provided with a valve seat. One side of the valve seat is closely attached to the semi-ball valve element, and the other side of the valve seat is provided with a valve seat pressure ring. An adjusting spring is arranged between the valve seat and the valve seat pressure ring. The valve is flexible to open and close, flow is smooth, slag deposition and blockage are avoided, a runner is smooth and unblocked, the valve cavity can not be blocked easily, the valve can operate smoothly, wear can be reduced to the maximum degree, and the service life is prolonged.
Description
Technical field
The utility model relates to valve technology field, is specifically related in a kind of magnetic separation in mine, micro-choosing, mine tailing and steel mill, the ash disposal system of power plant and the transporting system in various oil fields for high pressure eccentric half-ball valve liquid-solid, gas-solid two-phase medium transporting system valve.
Background technique
Existing eccentric half-ball valve due to structure imperfection, to mate selecting of unreasonable, material improper, has following deficiency:
1, under high pressure medium running state, the valve poor performance of automatically releasing.
2, the sealing surface of valve body and spool not resistance to erosion, scratch, wearing and tearing and easily producing reveal, working life is extremely short.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned defect, a kind of compact structure is provided, is active in one's movements, has soft or hard double seal, wear-resistant, and the high pressure eccentric half-ball valve that can automatically release under high pressure medium operating conditions.
For achieving the above object, the high pressure eccentric half-ball valve of the utility model design, comprise be provided with import and outlet valve body, be arranged on described valve body top eccentric shaft, be arranged on the lower valve shaft of described valve body lower portion, and hemisphere spool between described eccentric shaft and lower valve shaft, described valve body upper end is provided with valve gap, described valve body lower end is provided with lower end cap, described import mouth wall inner side is provided with valve seat, the suction side of described valve seat is provided with valve seat trim ring, between described valve seat and valve seat trim ring, is provided with adjustment spring.
Further, described valve seat inner surface is provided with the clad of being made up of corrosion-resistant, resistance to erosion, resistance to scratch, anti abrasive macromolecular material.
Further, described eccentric shaft is connected with whirligig through described valve gap.
Again further, between described lower end cap and valve body lower end, be provided with spacer.
Further, between the bottom of described valve body and lower valve shaft, be provided with seal cartridge.
Further, between the top of described valve body and eccentric shaft, be provided with upper gland packing and seal ring.
The utility model adopts technique scheme, has the following advantages and effect:
(1), under high pressure medium state, valve, by adjusting spring extremely the boosting of valve inlet chamber of automatically releasing, has strengthened the performance of automatically releasing.
(2), hemisphere spool is open type hemisphere structure, full-bore design, after valve opening, form a complete beeline channel with pipeline, lime-ash cannot be residual, adhere to and pile up, and valve opening and closing is flexible, the unimpeded not accumulated slag of flow process, do not stop up, runner is unobstructed, and valve pocket is difficult for stopping up, and makes valve operation smooth.
(3), the skin of valve seat is coated with one deck high molecular abrasion-proof material, corrosion-resistant, resistance to erosion, resistance to scratch, wear-resistant, be difficult for producing revealing the long service life of valve seat and spool between valve seat and hemisphere spool.
(4), hemisphere spool is hardware material, the skin of valve seat is coated with one deck high molecular abrasion-proof material, between spool and valve seat, is sealed into soft or hard double sealing structure, spool and valve seat, to adequately protecting, reduce wear to greatest extent, have extended working life.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram under closed condition of the present utility model;
Fig. 2 is overall structure schematic diagram under opening state of the present utility model;
Fig. 3 is the part-structure enlarged diagram of the valve seat of model utility;
In figure, 1-lower end cap; 2-spacer; 3-seal cartridge; 4-valve body (4.1-import, 4.2-outlet); 5-lower valve shaft; 6-hemisphere spool; 7-seal ring; 8-stuffing box packing; 9-eccentric shaft; 10-valve gap; 11-valve seat (11.1-clad); 12-adjusts spring; 13-valve seat trim ring; 14-whirligig.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
High pressure eccentric half-ball valve as depicted in figs. 1 and 2, comprise be provided with import 4.1 and outlet 4.2 valve body 4, be arranged on valve body 4 tops eccentric shaft 9, be arranged on the lower valve shaft 5 of valve body 4 bottoms, and hemisphere spool 6 between eccentric shaft 9 and lower valve shaft 5, valve body 4 upper ends are provided with valve gap 10, eccentric shaft 9 is connected with whirligig 14 through valve gap 10, and whirligig 14 connects sense of rotation transducer by existing rotating disc or handle and forms.Valve body 4 lower ends are provided with lower end cap 1,4.1 mouthfuls of wall inner sides of import are provided with valve seat 11(in the time that high pressure eccentric half-ball valve is closed, one side of valve seat 11 is close to hemisphere spool 6) opposite side of valve seat 11 is provided with valve seat trim ring 13, and between valve seat 11 and valve seat trim ring 13, be provided with and adjust spring 12.
Valve seat 11 inner surfaces are provided with the clad 11.1 of being made up of corrosion-resistant, resistance to erosion, resistance to scratch, anti abrasive macromolecular material, this clad 11.1 is PP material or quality of rubber materials, or for other has the macromolecular material of corrosion-resistant, resistance to erosion, resistance to scratch, wear-resistant character, between lower end cap 1 and valve body 4 lower ends, be provided with spacer 2, between the bottom of valve body 4 and lower valve shaft 5, be provided with seal cartridge 3, between the top of valve body 4 and eccentric shaft 9, be provided with upper gland packing 8 and seal ring 7.
Valve body 4 of the present utility model, valve seat 11 and valve seat trim ring 13 form valve pocket, and hemisphere spool 6 is arranged in valve pocket, make import 4.1 and outlet 4.2 on valve body 4 communicate and close by the rotation of hemisphere spool 6, thus opening and closing valve.Valve seat 11, adjustment spring 12 and valve seat trim ring 13 are placed in suction side composition precompressed, compensation and the soft or hard double seal part of hemisphere spool 6, stop in medium and leak; Lower end cap 1, spacer 2, seal cartridge 3 form the bottom external sealed part of valve, stop medium to leak outside, and seal ring 7, upper gland packing 8 form top sealed portion with eccentric shaft 9, valve gap 10 simultaneously, stop medium to leak outside.
The output terminal connection eccentric shaft 9 of whirligig 14 forms the drive part of valve, drives hemisphere spools 6 and lower valve shaft 5 to rotate by eccentric shaft 9 half-twists, realizes the opening and closing of valve.
Hemisphere spool 6 of the present utility model adopts open type hemisphere structure, and full-bore design forms a complete beeline channel with pipeline after valve opening, and lime-ash cannot be residual, adhere to and pile up.Valve opening and closing is flexible, does not stop up, accumulated slag not, and flow process is unimpeded.
The skin of valve seat 11 is coated with high molecular abrasion-proof material, only needs less seal pressure can realize sealing completely.Make this valve there is the working life of the reliable and overlength of corrosion-resistant, resistance to erosion, wear-resistant, resistance to scratch, sealing.
Between hemisphere spool 6 and valve seat 11, be sealed into soft or hard double sealing structure, hemisphere spool 6 and valve seat 11 are adequately protected, reduce wear to greatest extent, extended working life.After valve closing, medium can not enter valve pocket.Valve, in the time of standard-sized sheet or complete shut-down, all can discharge valve pocket fluid.By adjusting the auto-compensation of spring 12 precompressed and valve seat trim ring 13, form forced seal, can not cause valve valve pocket dust stratification and obstruction, make valve opening and closing that jam not occur, stop hemisphere fouling.
Under high pressure medium state, valve boosts extremely by adjusting spring 12 valve pocket of automatically releasing.Due to thermal expansion or other reason, while causing valve body valve pocket extremely to boost (pressure is greater than pipeline pressure), under valve pocket pressure-acting, the valve seat trim ring 13 of import can be pushed hemisphere to by built-in adjustment spring automatic regulating valve seat, makes valve body valve pocket pressure releasing in pipeline.
Claims (10)
1. a high pressure eccentric half-ball valve, comprise valve body (4), the eccentric shaft (9) that is arranged on described valve body (4) top that is provided with import (4.1) and export (4.2), the lower valve shaft (5) that is arranged on described valve body (4) bottom, and be positioned at the hemisphere spool (6) between described eccentric shaft (9) and lower valve shaft (5), described valve body (4) upper end is provided with valve gap (10), described valve body (4) lower end is provided with lower end cap (1), it is characterized in that:
Described import (4.1) mouthful wall inner side is provided with valve seat (11), and the suction side of described valve seat (11) is provided with valve seat trim ring (13), is provided with and adjusts spring (12) between described valve seat (11) and valve seat trim ring (13).
2. high pressure eccentric half-ball valve according to claim 1, is characterized in that: described valve seat (11) inner surface is provided with the clad (11.1) of being made up of corrosion-resistant, resistance to erosion, resistance to scratch, anti abrasive macromolecular material.
3. high pressure eccentric half-ball valve according to claim 1 and 2, is characterized in that: described eccentric shaft (9) is connected with whirligig (14) through described valve gap (10).
4. high pressure eccentric half-ball valve according to claim 1 and 2, is characterized in that: between described lower end cap (1) and valve body (4) lower end, be provided with spacer (2).
5. high pressure eccentric half-ball valve according to claim 3, is characterized in that: between described lower end cap (1) and valve body (4) lower end, be provided with spacer (2).
6. high pressure eccentric half-ball valve according to claim 1 and 2, is characterized in that: between the bottom of described valve body (4) and lower valve shaft (5), be provided with seal cartridge (3).
7. high pressure eccentric half-ball valve according to claim 3, is characterized in that: between the bottom of described valve body (4) and lower valve shaft (5), be provided with seal cartridge (3).
8. high pressure eccentric half-ball valve according to claim 1 and 2, is characterized in that: between the top of described valve body (4) and eccentric shaft (9), be provided with upper gland packing (8) and seal ring (7).
9. high pressure eccentric half-ball valve according to claim 3, is characterized in that: between the top of described valve body (4) and eccentric shaft (9), be provided with upper gland packing (8) and seal ring (7).
10. high pressure eccentric half-ball valve according to claim 4, is characterized in that: between the top of described valve body (4) and eccentric shaft (9), be provided with upper gland packing (8) and seal ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090060.2U CN203743482U (en) | 2014-02-28 | 2014-02-28 | High-medium-pressure eccentric semi-ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090060.2U CN203743482U (en) | 2014-02-28 | 2014-02-28 | High-medium-pressure eccentric semi-ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743482U true CN203743482U (en) | 2014-07-30 |
Family
ID=51343283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090060.2U Expired - Fee Related CN203743482U (en) | 2014-02-28 | 2014-02-28 | High-medium-pressure eccentric semi-ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633164A (en) * | 2014-12-04 | 2015-05-20 | 张家港市佳晟机械有限公司 | Sealed leakproof ball valve |
-
2014
- 2014-02-28 CN CN201420090060.2U patent/CN203743482U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633164A (en) * | 2014-12-04 | 2015-05-20 | 张家港市佳晟机械有限公司 | Sealed leakproof 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: 20140730 Termination date: 20180228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |