CN103511650A - Gate valve without valve seat and without pressure in inner chamber - Google Patents
Gate valve without valve seat and without pressure in inner chamber Download PDFInfo
- Publication number
- CN103511650A CN103511650A CN201310508861.6A CN201310508861A CN103511650A CN 103511650 A CN103511650 A CN 103511650A CN 201310508861 A CN201310508861 A CN 201310508861A CN 103511650 A CN103511650 A CN 103511650A
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure
- hydraulic cylinder
- oil hydraulic
- valve body
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to a gate valve without a valve seat and without pressure in the inner chamber. The gate valve comprises a valve body, valve rods, folio valve plates and a hydraulic cylinder, where a longitudinal channel is formed in the middle of the valve body; the two folio valve plate are symmetrically mounted on two traverse sides in the middle cavity of the valve body and in the middle of the channel; one ends of the valve rods are coaxially and fixedly mounted on the outer sides of the folio valve plates; the hydraulic cylinder is mounted at the other ends of the valve rods. The gate valve has no valve seat; the folio valve plates are contacted and sealed with the valve body; during opening or closing, the middle cavity is sealed with valve plate butted seal elements and valve plate side wall seal elements, so as to achieve the effect of no pressure in the middle cavity, and meet the requirement of no pressure in the inner chamber when the gate valve is closed or opened under special operating conditions.
Description
Technical field
The invention belongs to valve field, especially a kind of without valve base cavity gate valve not with pressure.
Background technique
At present, valve, when starting or closing, is realized and being dammed by a certain amount of interference fit between flashboard and valve seat, and inner chamber all exists certain pressure, but due to the needs of special operation condition, and during valve switch, inner chamber is not with pressure belongs to more scabrous technical barrier.
Through retrieval, do not find the public technology identical with present patent application.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of without valve base cavity gate valve not with pressure.
The present invention solves its technical problem and takes following technological scheme to realize:
A kind of without valve base cavity gate valve not with pressure, it is characterized in that: comprise valve body, valve rod, opposite opened valve plate and oil hydraulic cylinder, valve body middle part is shaped with runner longitudinally, in the valve body lumen at runner middle part, both lateral sides is all symmetrically installed with a pair of open type valve plate, the opposite opened valve plate outside of these both sides is all coaxially fixed with one end of valve rod, and the valve rod the other end is provided with oil hydraulic cylinder.
And, the opposite opened flashboard of described both sides, the valve rod of both sides and the equal transverse uniaxial setting of oil hydraulic cylinder.
And, the inner chamber of cylinder block of the piston inner side of described oil hydraulic cylinder connects the open check valve that is packed in valve outer wall by passage made in valve body, inner chamber of cylinder block connects the closing one-way valve that is packed in valve outer wall by passage made in valve body outside the piston of oil hydraulic cylinder.
And the surface of contact middle part of the opposite opened valve plate of described both sides is all embedded with a valve plate Butt sealing part.
And the sidewall of the opposite opened valve plate of described and valve body sliding contact is all provided with valve plate sidewall Sealing.
Advantage of the present invention and good effect are:
1, this valve is when opening state, and pilot pressure, by closing one-way valve entrance pressure, acts on oil hydraulic cylinder epicoele, promotes two opposite opened valve plates simultaneously and moves down, and finally contacts, and is reached the effect of excellent sealing by valve plate Sealing.
2, this gate valve is without valve seat, valve plate contacts sealing with valve body, open or closing process in by valve plate Butt sealing part, valve plate sidewall seal components chamber, sealed, reach lumen effect not with pressure, thus inner chamber requirement not with pressure while meeting in special operation condition valve switch.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to structure sectional view.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of without valve base cavity gate valve not with pressure, comprise valve body 1, valve rod 5, opposite opened valve plate 4 and oil hydraulic cylinder 6, direction with accompanying drawing 1 describes, valve body middle part is shaped with runner longitudinally, in the valve body lumen at runner middle part, both lateral sides is all symmetrically installed with a pair of open type valve plate, the opposite opened valve plate outside of these both sides is all coaxially fixed with one end of valve rod, the valve rod the other end is provided with oil hydraulic cylinder, this Driven by Hydraulic Cylinder opposite opened flashboard transverse uniaxial in valve body reciprocatingly slides, and the valve plate of both sides blocks runner when closed to middle part.
The opposite opened flashboard of described both sides, the valve rod of both sides and the equal transverse uniaxial setting of oil hydraulic cylinder.
The structure of described oil hydraulic cylinder as shown in Figure 2, the inner chamber of cylinder block of the piston inner side of oil hydraulic cylinder connects the open check valve 7 that is packed in valve outer wall by passage made in valve body, inner chamber of cylinder block connects the closing one-way valve 8 that is packed in valve outer wall by passage made in valve body outside the piston of oil hydraulic cylinder.
In order to guarantee throttling sealing, the surface of contact of the opposite opened valve plate of described both sides middle part is all embedded with a valve plate Butt sealing part 2.
In order to prevent that medium from flowing into valve body and affect valve, the sidewall of the opposite opened valve plate of described and valve body sliding contact is all provided with valve plate sidewall Sealing 3.
Working procedure of the present invention is as follows:
While needing Open valve, valve is in closed condition, and pilot pressure acts on oil hydraulic cylinder cavity of resorption by open check valve entrance pressure, promotes two opposite opened valve plates simultaneously and moves up until valve opening.While needing throttle down, valve is in opening state, and pilot pressure acts on oil hydraulic cylinder epicoele by closing one-way valve entrance pressure, promotes two opposite opened valve plates simultaneously and moves down, and opposite opened valve plate is in contact with one another, and by valve plate Sealing, is reached the effect of sealing.
Although disclose for the purpose of illustration embodiments of the invention and accompanying drawing, but it will be appreciated by those skilled in the art that: within not departing from the spirit and scope of the present invention and claims, various replacements, variation and modification are all possible, therefore, scope of the present invention is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (5)
1. one kind without valve base cavity gate valve not with pressure, it is characterized in that: comprise valve body, valve rod, opposite opened valve plate and oil hydraulic cylinder, valve body middle part is shaped with runner longitudinally, in the valve body lumen at runner middle part, both lateral sides is all symmetrically installed with a pair of open type valve plate, the opposite opened valve plate outside of these both sides is all coaxially fixed with one end of valve rod, and the valve rod the other end is provided with oil hydraulic cylinder.
2. according to claim 1 without valve base cavity gate valve not with pressure, it is characterized in that: the opposite opened flashboard of described both sides, the valve rod of both sides and the equal transverse uniaxial setting of oil hydraulic cylinder.
3. according to claim 1 without valve base cavity gate valve not with pressure, it is characterized in that: the inner chamber of cylinder block of the piston of described oil hydraulic cylinder inner side connects the open check valve that is packed in valve outer wall by passage made in valve body, inner chamber of cylinder block connects the closing one-way valve that is packed in valve outer wall by passage made in valve body outside the piston of oil hydraulic cylinder.
4. according to claim 1 without valve base cavity gate valve not with pressure, it is characterized in that: the surface of contact middle part of the opposite opened valve plate of described both sides is all embedded with a valve plate Butt sealing part.
5. according to claim 1 without valve base cavity gate valve not with pressure, it is characterized in that: the sidewall of the opposite opened valve plate of described and valve body sliding contact is all provided with valve plate sidewall Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310508861.6A CN103511650A (en) | 2013-10-24 | 2013-10-24 | Gate valve without valve seat and without pressure in inner chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310508861.6A CN103511650A (en) | 2013-10-24 | 2013-10-24 | Gate valve without valve seat and without pressure in inner chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511650A true CN103511650A (en) | 2014-01-15 |
Family
ID=49894858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310508861.6A Pending CN103511650A (en) | 2013-10-24 | 2013-10-24 | Gate valve without valve seat and without pressure in inner chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511650A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558842A (en) * | 1983-09-06 | 1985-12-17 | Bowen Tools, Inc. | Connector for joining blowout preventer members |
| US4612955A (en) * | 1984-11-29 | 1986-09-23 | Purvis Howard A | Edge wear tab for a high temperature valve component |
| CN202215189U (en) * | 2011-09-10 | 2012-05-09 | 山东临朐乾成石油机械有限公司 | Shearing and full-sealing double-gate-segment blowout preventer for oil field |
| CN202417402U (en) * | 2011-12-11 | 2012-09-05 | 杨桂青 | Dual-pipe operation blowout preventer of horizontal well |
| CN202467749U (en) * | 2012-02-13 | 2012-10-03 | 江苏金石富源机械有限公司 | Side door blowout preventer with air damping buffer hydraulic switch |
| CN203008842U (en) * | 2012-12-28 | 2013-06-19 | 上海神开石油化工装备股份有限公司 | Multifunctional cable blowout preventer |
| CN203627851U (en) * | 2013-10-24 | 2014-06-04 | 天津百利展发集团有限公司 | Valve-base-less gate valve with inner cavity under no pressure |
-
2013
- 2013-10-24 CN CN201310508861.6A patent/CN103511650A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558842A (en) * | 1983-09-06 | 1985-12-17 | Bowen Tools, Inc. | Connector for joining blowout preventer members |
| US4612955A (en) * | 1984-11-29 | 1986-09-23 | Purvis Howard A | Edge wear tab for a high temperature valve component |
| CN202215189U (en) * | 2011-09-10 | 2012-05-09 | 山东临朐乾成石油机械有限公司 | Shearing and full-sealing double-gate-segment blowout preventer for oil field |
| CN202417402U (en) * | 2011-12-11 | 2012-09-05 | 杨桂青 | Dual-pipe operation blowout preventer of horizontal well |
| CN202467749U (en) * | 2012-02-13 | 2012-10-03 | 江苏金石富源机械有限公司 | Side door blowout preventer with air damping buffer hydraulic switch |
| CN203008842U (en) * | 2012-12-28 | 2013-06-19 | 上海神开石油化工装备股份有限公司 | Multifunctional cable blowout preventer |
| CN203627851U (en) * | 2013-10-24 | 2014-06-04 | 天津百利展发集团有限公司 | Valve-base-less gate valve with inner cavity under no pressure |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140115 |