CN203309200U - L-shaped three-way double-eccentric hemispherical valve - Google Patents
L-shaped three-way double-eccentric hemispherical valve Download PDFInfo
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- CN203309200U CN203309200U CN2013203486309U CN201320348630U CN203309200U CN 203309200 U CN203309200 U CN 203309200U CN 2013203486309 U CN2013203486309 U CN 2013203486309U CN 201320348630 U CN201320348630 U CN 201320348630U CN 203309200 U CN203309200 U CN 203309200U
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Abstract
The utility model discloses an L-shaped three-way double-eccentric hemispherical valve which is characterized in that three orthotropic channels are formed in a valve body of the hemispherical valve, wherein two channels A and B which are opposite in direct connection and are coaxial are respectively provided with valve seats; two spherical sealing surfaces which are perpendicular to each other and respectively form sealing pairs with the valve seats arranged in the channels A and C are arranged on a valve core with an integrated structure; the sphere centers of the two spherical surfaces are respectively deviated from one side of a rotating center of a valve shaft.
Description
Technical field
The utility model relates to a kind of eccentric half-ball valve, relates to specifically a kind of L-type threeway double eccentric half ball valve.
Background technique
Eccentric half-ball valve is the valve of a kind of new structure of developing rapidly nearly decades.Especially liquid-fixed double phase flow gentle-the fixed double phase flow medium in, be used widely, be subject to the consistent favorable comment of valve applying unit.But up to the present, the structure of this valve also is confined to straight-through one-way sealing, one-way flow structure, directly has influence on further widening of its application.
Summary of the invention
The purpose of this utility model provides a kind of L-type threeway double eccentric half ball valve for existing deficiency in above-mentioned prior art just.
The purpose of this utility model can realize by following technique measures:
On the valve body of L-type threeway double eccentric half ball valve of the present utility model, be provided with three passages that are orthogonal, wherein two passage A, B of relatively straight-through coaxial line are respectively arranged with valve seat, integral structure spool on arrange two orthogonal respectively with passage A, C in the valve seat that arranges form the ball face sealing face of sealing pair, and the centre of sphere of two spheres departs from respectively valve shaft gyration center one side.
Eccentric distance e=R of the centre of sphere of two spheres described in the utility model and valve shaft gyration center O * tg α.
Working principle of the present utility model is as follows:
When spool under valve shaft drives when O is rotated counterclockwise, the sphere a of spool and valve seat A close contact wedging self-locking, realize forced seal; Now valve forms the L-type passage that B-C is communicated with.When spool turns clockwise 90 around O under valve shaft drives
oThe time, the sphere b of spool and valve seat B close contact wedging self-locking, realize forced seal; Now valve forms the L-type passage that A-C is communicated with.
The beneficial effects of the utility model are as follows:
The utility model has been realized the forced seal of triple valve.Before this, tee ball valve and threeway plug valve can only be that position is closed, and can not forced seal.
The accompanying drawing explanation.
Fig. 1 is the structural representation that the sealing of the utility model A channel, B-C-channel are communicated with.
Fig. 2 is the structural representation that the utility model B channel enclosed, A-C-channel are communicated with.
In figure: 1, valve body, 2, valve seat, 3, spool, 4, valve shaft.
Embodiment
The utility model is further described below with reference to embodiment's (accompanying drawing):
As shown in Figure 1 and Figure 2, L-type threeway double eccentric half ball valve of the present utility model comprises valve body 1, is arranged on two valve seats 2 in the through hole of valve body two ends, is arranged on the spool 3 in valve pocket by valve shaft 4; On wherein said valve body 1, be provided with three passages that are orthogonal, wherein two passage A, B of relatively straight-through coaxial line are respectively arranged with valve seat 2, integral structure spool 3 on arrange two orthogonal respectively with passage A, C in the valve seat that arranges form ball face sealing face a, the b of sealing pair, and the centre of sphere of two spheres departs from respectively valve shaft gyration center one side.
Eccentric distance e=R of the centre of sphere of two spheres described in the utility model and valve shaft gyration center O * tg α.
When valve shaft 4 driving spools 3 were rotated counterclockwise, sealing pair A-a coincide and seals, and closes A channel, forms B-C-channel angie type and is communicated with, as shown in Figure 1 position; Otherwise, turn clockwise 90 when valve shaft 4 drives spool 3
0The time, sealing pair B-b coincide and seals, and closes the B passage, forms A-C-channel angie type and is communicated with, as shown in Figure 2 position.
Claims (2)
1. L-type threeway double eccentric half ball valve, it is characterized in that: on the valve body of described semispherical valve, be provided with three passages that are orthogonal, wherein two passage A, B of relatively straight-through coaxial line are respectively arranged with valve seat, integral structure spool on arrange two orthogonal respectively with passage A, C in the valve seat that arranges form the ball face sealing face of sealing pair, and the centre of sphere of two spheres departs from respectively valve shaft gyration center one side.
2. L-type threeway double eccentric half ball valve according to claim 1, is characterized in that: eccentric distance e=R of the centre of sphere of described two spheres and valve shaft gyration center O * tg α.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203486309U CN203309200U (en) | 2013-06-18 | 2013-06-18 | L-shaped three-way double-eccentric hemispherical valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203486309U CN203309200U (en) | 2013-06-18 | 2013-06-18 | L-shaped three-way double-eccentric hemispherical valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309200U true CN203309200U (en) | 2013-11-27 |
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ID=49615413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203486309U Expired - Fee Related CN203309200U (en) | 2013-06-18 | 2013-06-18 | L-shaped three-way double-eccentric hemispherical valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277536A (en) * | 2013-06-18 | 2013-09-04 | 河南黑马实业有限公司 | L-shaped three-channel double-eccentric hemispherical ball valve |
-
2013
- 2013-06-18 CN CN2013203486309U patent/CN203309200U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277536A (en) * | 2013-06-18 | 2013-09-04 | 河南黑马实业有限公司 | L-shaped three-channel double-eccentric hemispherical 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: 20131127 Termination date: 20140618 |
|
| EXPY | Termination of patent right or utility model |