CN103115157A - Self-balance type flat gate valve - Google Patents
Self-balance type flat gate valve Download PDFInfo
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- CN103115157A CN103115157A CN2013100712143A CN201310071214A CN103115157A CN 103115157 A CN103115157 A CN 103115157A CN 2013100712143 A CN2013100712143 A CN 2013100712143A CN 201310071214 A CN201310071214 A CN 201310071214A CN 103115157 A CN103115157 A CN 103115157A
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- valve
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- flashboard
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Abstract
The invention relates to a self-balance type flat gate valve. The self-balance type flat gate valve comprises a valve body, a floating type valve seat and a gate board, wherein the gate board is arranged in a valve cavity, and the floating type valve seat is arranged on portions of the valve body, on two sides of the gate board. The self-balance type flat gate valve is characterized in that a piston and a piston cavity are arranged on the gate board, and the piston is placed in the piston cavity and capable of carrying out reciprocation movement relative to the piston cavity. The piston cavity is a through-hole cavity, a through nut connected with the gate board through threads is arranged at one end of the piston cavity, and an overflow hole is formed in the other end of the piston cavity. The gate board is further provided with a balance hole, one end of the balance hole is communicated with the piston cavity, and the other end of the balance hole is communicated with the valve cavity of the valve body. The self-balance type flat gate valve has the advantages that the piston, the piston cavity and the balance hole are additionally arranged on the gate board, no matter which states the gate board is in, opened or closed, pressure of an inlet cavity of the valve and the valve cavity is always in a balanced state, and therefore opening and closing of the gate board are labor-saving, friction of the valve seat is reduced, abrasion of a valve rod and a valve rod nut is reduced, service life of the valve is prolonged, and safety and stability of the valve are improved.
Description
Technical field
The present invention relates to the valve that a kind of oil pipeline is used, particularly a kind of opening and closing self-balancing type plate valve flexibly.
Background technique
At present, traditional plate valve is all to adopt a shoe brake plate, and lock blocks and leave the metering orifice of valve body to the valve body bottom, to realize the opening and closing of valve.When closing, the flashboard lock to the valve body bottom, is intercepted with outlet mutually with import, flashboard is under the effect of medium thrust at this moment, and tightly the valve seat with the lower exit end fits, and to close outlet, this moment, flashboard bore one-sided shearing force; During unlatching, flashboard upwards promotes, and import communicates with outlet, this moment, the lifting moment of torsion of flashboard was very large due to the frictional force of pressure medium and flashboard and valve seat, and a side will overcome pressure medium, opposite side will overcome the frictional force of flashboard and valve seat, so it is very large to open moment of torsion, requires great effort very much.Flashboard also affects the working life of valve owing to being subject to for a long time shearing force.
Summary of the invention
The technical problem to be solved in the present invention is, overcome above-mentioned the deficiencies in the prior art, a kind of self-balancing type plate valve is provided, can reduce valve seat and the flashboard surface friction drag when opening and closing, reduce the total torque of valve rod, make valve opening and closing operation flexible, improve the working life of valve, ensure that the long-term safety of valve is used and normal operation.
Technical solution of the present invention is, comprise valve body (2), valve seat (3) and flashboard (1), flashboard (1) is located in valve pocket (12), valve seat (3) is located on the valve body (2) of flashboard (1) both sides, it is characterized in that: flashboard (1) is provided with piston (8) and piston cavity (6), piston (8) is placed in piston cavity (6), and its to-and-fro motion relatively; One end of piston cavity (6) communicates with the import (5) of valve body (2), and the other end communicates with the outlet (10) of valve body (2); Flashboard (1) is provided with equalizing orifice (11), and its equalizing orifice (11) one ends communicate with piston cavity (6), and the other end communicates with the valve pocket of valve body (1).
Described piston cavity (6) is via cavities, and the one end is provided with and the logical heart nut (4) of flashboard (1) by scyewed joint, and the other end is provided with the aperture less than the overflow hole (9) of piston cavity 6.
Piston (8) is provided with " O " RunddichtringO (7).
Advantage of the present invention is, set up piston, piston cavity and balanced hole structure on flashboard, no matter flashboard is under any one state of opening or cutting out, the snout cavity of valve and the pressure of valve pocket are in state of equilibrium all the time, thereby the opening and closing of flashboard are more laborsaving, both reduce the frictional force of valve seat and the wearing and tearing of valve rod and Stem Mut, improved again working life and the safety and stability performance of valve simultaneously.
The drawing explanation
Accompanying drawing is structural representation of the present invention.
Number in the figure: the 1-flashboard, the 2-valve body, the 3-valve seat, 4-leads to heart nut, 5-import, 6-piston cavity, 7-seal ring, 8-piston, 9-overflow hole, 10-outlet, 11-equalizing orifice, 12-valve pocket.
Embodiment
The below contrasts accompanying drawing, and the embodiment of the present invention is described in further detail:
The present invention mainly comprises valve body 2, valve seat 3 and flashboard 1, and flashboard 1 is located in valve pocket 12, and valve seat 3 is floating type valve seat, is located on the valve body 2 of flashboard 1 both sides.Flashboard 1 is provided with piston 8 and piston cavity 6, and piston 8 is placed in piston cavity 6.One end of piston cavity 6 communicates with the import 5 of valve body 2, and the other end communicates with the outlet 10 of valve body 2; Piston cavity 6 is via cavities, the one end is provided with and the logical heart nut 4 of flashboard 1 by scyewed joint, the other end is provided with the aperture less than the overflow hole 9 in piston cavity 6 apertures, and piston 8 is placed between the hole shoulder of logical heart nut 4 and overflow hole 9, and can be reciprocating between both.
Also be provided with equalizing orifice 11 on flashboard 1, its equalizing orifice 11 1 ends communicate with piston cavity 6, and the other end communicates with the valve pocket 12 of valve body 2.
Piston 8 is provided with RunddichtringO 7.
The unlatching of flashboard 1 realizes by the lifting up and down of flashboard.
When flashboard 1 was in closed condition, flashboard 1 had sealed flowing of medium on the floating type valve seat 3 that tightly is fitted in valve body 2 outlet 10 sides under the promotion of medium.Simultaneously, piston 8 is blocked overflow hole 9 under the promotion of pressure medium, and overflow hole 9 is in closed state; Medium in piston cavity 8, enter in the valve pocket 12 of valve body 2 through equalizing orifice 11, make the pressure of import 5 and the pressure of valve pocket 12 keep balance, thereby make the balance pressure that obtains to come from valve pocket 12 on flashboard 1, thereby make flashboard 1 when being in closed condition for a long time, its suffered pressure medium is balance and stablizing more, helps to improve working life and the service behaviour of whole valve.
Upwards mention when opening when flashboard 1, flashboard 1 is subject to coming from import 5, outlet 10 and the identical pressure medium of valve pocket 12 three aspects :s equally, and therefore, the whole pressure that is subject on flashboard 1 is balance, so open more laborsaving.
Claims (3)
1. self-balancing type plate valve, comprise valve body (2), valve seat (3) and flashboard (1), flashboard (1) is located in valve pocket (12), valve seat (3) is located on the valve body (2) of flashboard (1) both sides, it is characterized in that: flashboard (1) is provided with piston (8) and piston cavity (6), piston (8) is placed in piston cavity (6), and an end of piston cavity (6) communicates with the import (5) of valve body (2), and the other end communicates with the outlet (10) of valve body (2); Flashboard (1) is provided with equalizing orifice (11), and its equalizing orifice (11) one ends communicate with piston cavity (6), and the other end communicates with the valve pocket of valve body (1).
2. a kind of self-balancing type plate valve as claimed in claim 1, it is characterized in that: described piston cavity (6) is via cavities, the one end is provided with and the logical heart nut (4) of flashboard (1) by scyewed joint, and the other end is provided with the aperture less than the overflow hole (9) of piston cavity (6).
3. a kind of self-balancing type plate valve as claimed in claim 1 or 2, it is characterized in that: piston (8) is provided with " O " RunddichtringO (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100712143A CN103115157A (en) | 2013-03-06 | 2013-03-06 | Self-balance type flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100712143A CN103115157A (en) | 2013-03-06 | 2013-03-06 | Self-balance type flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103115157A true CN103115157A (en) | 2013-05-22 |
Family
ID=48413571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100712143A Pending CN103115157A (en) | 2013-03-06 | 2013-03-06 | Self-balance type flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103115157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1507280A (en) * | 1922-06-26 | 1924-09-02 | Gomand Gabriel | Balanced sluice valve |
| US2341966A (en) * | 1942-08-06 | 1944-02-15 | Wayer & Norris Inc | Balanced gate valve |
| CN1103938A (en) * | 1993-12-19 | 1995-06-21 | 丁前凯 | Gate valve balance device |
| CN201093086Y (en) * | 2007-09-24 | 2008-07-30 | 江苏苏盐阀门机械有限公司 | Full floating bulkhead gate |
| CN201866292U (en) * | 2010-11-04 | 2011-06-15 | 天津百利展发集团有限公司 | Lightly-opened gate valve |
| CN203146865U (en) * | 2013-03-06 | 2013-08-21 | 江苏苏盐阀门机械有限公司 | Self-balancing flat gate valve |
-
2013
- 2013-03-06 CN CN2013100712143A patent/CN103115157A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1507280A (en) * | 1922-06-26 | 1924-09-02 | Gomand Gabriel | Balanced sluice valve |
| US2341966A (en) * | 1942-08-06 | 1944-02-15 | Wayer & Norris Inc | Balanced gate valve |
| CN1103938A (en) * | 1993-12-19 | 1995-06-21 | 丁前凯 | Gate valve balance device |
| CN201093086Y (en) * | 2007-09-24 | 2008-07-30 | 江苏苏盐阀门机械有限公司 | Full floating bulkhead gate |
| CN201866292U (en) * | 2010-11-04 | 2011-06-15 | 天津百利展发集团有限公司 | Lightly-opened gate valve |
| CN203146865U (en) * | 2013-03-06 | 2013-08-21 | 江苏苏盐阀门机械有限公司 | Self-balancing flat gate valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
| CN117386836B (en) * | 2023-12-13 | 2024-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130522 |