CN105351550A - Double-plate hard sealing gate valve - Google Patents
Double-plate hard sealing gate valve Download PDFInfo
- Publication number
- CN105351550A CN105351550A CN201510936246.4A CN201510936246A CN105351550A CN 105351550 A CN105351550 A CN 105351550A CN 201510936246 A CN201510936246 A CN 201510936246A CN 105351550 A CN105351550 A CN 105351550A
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- seat
- jacking block
- cylinder jacking
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title abstract description 10
- 238000000034 method Methods 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- F16K3/16—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 special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—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 special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to a double-plate hard sealing gate valve. The double-plate hard sealing gate valve is mainly used for solving the problems of an existing double-plate hard sealing gate valve, such as great friction force between a disc and a valve body as well as a valve seat, hard opening or closing of the valve, serious abrasion and short service life. The double-plate hard sealing gate valve is characterized in that: a left cylindrical ejector block (10) and a right cylindrical ejector block (11) are symmetrically arranged within a valve plate seat (9); semi-conical grooves (12) are formed in corresponding faces of the left cylindrical ejector block (10) and the right cylindrical ejector block (11); springs (13) are arranged between the left cylindrical ejector block (10) and a left disc (7), and between the right cylindrical ejector block (11) and a right disc (8); and a conical tip (14) is arranged at the bottom end of a valve rod (6). In a process when the double-plate hard sealing gate valve is opened or closed, the valve is easy to open or close so that labor can be saved; the discs, the valve body and the valve seat are not worn or less worn; furthermore, the double-plate hard sealing gate valve is capable of bearing a relatively high medium pressure and long in service life.
Description
Technical field
The present invention relates to a kind of valve, be specifically related to a kind of two dull and stereotyped hard seal gate valve.
Background technique
Plate valve belongs to stop valve class, and its effect is the medium connected or block in pipeline, mainly contains completely closed or opens two kinds of working staties completely.The hard seal gate valve of two flat board is the parallel flashboard of employing two and two valve seats, the entrance point of medium and outlet end two way sealed.Existing two dull and stereotyped hard seal gate valve comprises valve body, valve seat, valve rod, left flashboard, right flashboard and valve plate seat, valve body is divided into center valve body, left valve barrel and right valve barrel, valve seat is divided into left valve seat and right valve seat, the internal surface of left valve barrel and right valve barrel is parallel to each other and is clamped in the two ends of center valve body, left valve barrel and right valve barrel are fixed by stud bolt, left valve barrel is concordant with the interior edge face of right valve seat with left valve seat respectively with the internal surface of right valve barrel, left valve seat and right valve seat adopt Hardmetal materials, also hard alloy layer is welded with on left flashboard and right flashboard with on the corresponding surface of left valve seat and right valve seat, valve rod is connected above valve plate seat, left flashboard and the right two ends of flashboard movable set below valve plate seat, spring is provided with in valve plate seat, the two ends of spring are conflicted respectively on left flashboard and right flashboard, under the action of the spring, left flashboard and right flashboard can keep certain impacting force respectively and between the interior edge face of left valve seat and right valve seat and valve interior surface, during valve closing, left flashboard and right flashboard and valve seat interior edge face are adjacent to, to reach good sealability.There is following technological deficiency in this two dull and stereotyped hard seal gate valve: during valve closing, the impacting force of left flashboard and right flashboard realizes by the precompression of spring, if spring force is too little, the impacting force of left flashboard and right flashboard is less, sealing effect is poor, easily produces leakage.In order to reach good sealing effect, the elastic force of usual spring is all larger, the frictional force of valve when opening or close between left and right flashboard and the internal surface of left and right valve body and between the interior edge face of left and right flashboard and left and right valve seat is larger, valve opening or closedown effort, and wearing and tearing are comparatively serious, working life is short.
Summary of the invention
In order to overcome existing two dull and stereotyped hard seal gate valve flashboard and the frictional force between valve body and valve seat is comparatively large, valve opening or closes is required great effort, wear and tear comparatively seriously and deficiency that working life is short, the invention provides a kind of two dull and stereotyped hard seal gate valve, this pair of hard seal gate valve of flat board is in unlatching or closing process, relative pressure, frictional force is not had to be zero between flashboard and valve interior surface and between flashboard and valve seat end face, valve opening or close laborsaving, flashboard, valve body and valve seat do not wear and tear or wear and tear less, higher pressure medium can be carried, long service life.
Technological scheme of the present invention is: a kind of two dull and stereotyped hard seal gate valve comprises center valve body, left valve barrel, right valve barrel, left valve seat, right valve seat, valve rod, left flashboard, right flashboard and valve plate seat, the internal surface of left valve barrel and right valve barrel is parallel to each other, left valve seat is concordant with right valve barrel internal surface with left valve barrel respectively with the interior edge face of right valve seat, valve rod is connected above valve plate seat, left flashboard and the right two ends of flashboard movable set below valve plate seat, left cylinder jacking block and right cylinder jacking block is arranged with in described valve plate seat, the corresponding surface of left cylinder jacking block and right cylinder jacking block is equipped with half-conical groove, spring is equipped with between left cylinder jacking block and left flashboard and between right cylinder jacking block and right flashboard, the bottom of valve rod is provided with beveled tip, the bottom outer wall of valve rod is provided with circular groove, the top of valve plate seat is socketed in circular groove also can move up and down relative to stem shaft and rotate relative to valve rod circumference, cylindrically coiled spring is provided with between valve rod and valve plate seat, cylindrically coiled spring be enclosed within top outside, when valve is in opening state, described spring is nature extended configuration, more than 1mm gap is had between left flashboard and left valve barrel internal surface and between right flashboard and right valve barrel internal surface, when valve is in closed condition, described spring is compressed, and is in impaction state between left flashboard and left valve seat interior edge face and between right flashboard and right valve seat interior edge face.
After described left cylinder jacking block and the laminating of right cylinder jacking block, the half-conical groove on the half-conical groove on left cylinder jacking block and right cylinder jacking block forms complete circle taper hole; The tapering of half-conical groove is identical with top tapering.
Be provided with limiting stopper below described valve plate seat, center valve body is provided with support block, and described limiting stopper is corresponding with support block; When limiting stopper contacts with support block, being positioned at bottom on center valve body bottom interior surface of left flashboard and right flashboard.
The present invention has following beneficial effect: owing to taking technique scheme, in valve opening or closing process, relative pressure, frictional force is not had to be zero between flashboard and valve interior surface and between flashboard and valve seat end face, valve opening or close laborsaving, flashboard, valve body and valve seat do not wear and tear or wear and tear less, higher pressure medium can be carried, long service life.
Accompanying drawing explanation
Accompanying drawing 1 is structure sectional view of the present invention.
Accompanying drawing 2 is structure sectional views of full open position of the present invention.
Accompanying drawing 3 is A place enlarged views in Fig. 1.
Accompanying drawing 4 is B place enlarged views in Fig. 2.
Accompanying drawing 5 is structural representations of left cylinder jacking block 10 and right cylinder jacking block 11 in Fig. 1.
1-center valve body in figure, 2-left valve barrel, 3-right valve barrel, the left valve seat of 4-, the right valve seat of 5-, 6-valve rod, the left flashboard of 7-, the right flashboard of 8-, 9-valve plate seat, the left cylinder jacking block of 10-, the right cylinder jacking block of 11-, 12-half-conical groove, 13-spring, 14-is top, 15-circular groove, 16-cylindrically coiled spring, 17-limiting stopper, 18-support block.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Shown in Fig. 1 ~ Fig. 5, a kind of two dull and stereotyped hard seal gate valve, comprise center valve body 1, left valve barrel 2, right valve barrel 3, left valve seat 4, right valve seat 5, valve rod 6, left flashboard 7, right flashboard 8 and valve plate seat 9, the internal surface of left valve barrel 2 and right valve barrel 3 is parallel to each other, left valve seat 4 is concordant with right valve barrel 3 internal surface with left valve barrel 2 respectively with the interior edge face of right valve seat 5, valve rod 6 is connected above valve plate seat 9, left flashboard 7 and the two ends of right flashboard 8 movable set below valve plate seat 9, left cylinder jacking block 10 and right cylinder jacking block 11 is arranged with in described valve plate seat 9, the corresponding surface of left cylinder jacking block 10 and right cylinder jacking block 11 is equipped with half-conical groove 12, spring 13 is equipped with between left cylinder jacking block 10 and left flashboard 7 and between right cylinder jacking block 11 and right flashboard 8, the bottom of valve rod 6 is provided with beveled tip 14, the bottom outer wall of valve rod 6 is provided with circular groove 15, the top of valve plate seat 9 is socketed in circular groove 15 and also can axially moves up and down relative to valve rod 6 and rotate relative to valve rod 6 circumference, cylindrically coiled spring 16 is provided with between valve rod 6 and valve plate seat 9, cylindrically coiled spring 16 is enclosed within outside top 14, when valve is in opening state, described spring 13 is in nature extended configuration, more than 1mm gap is had between left flashboard 7 and left valve barrel 2 internal surface and between right flashboard 8 and right valve barrel 3 internal surface, when valve is in closed condition, described spring 13 is compressed, and is in impaction state between left flashboard 7 and left valve seat 4 interior edge face and between right flashboard 8 and right valve seat 5 interior edge face.Owing to taking technique scheme, at valve from opening state to buttoned-up status process, between left flashboard 7 and left valve barrel 2 internal surface and between right flashboard 8 and right valve barrel 3 internal surface, there is gap, relative pressure namely between left flashboard 7 and left valve barrel 2 internal surface and between right flashboard 8 and right valve barrel 3 internal surface is zero, frictional force between left flashboard 7 and left valve barrel 2 internal surface and between right flashboard 8 and right valve barrel 3 internal surface is zero, downforce is delivered to valve plate seat 9 by cylindrically coiled spring 16 by valve rod 6, avoid left flashboard 7 and right flashboard 8 slightly jam top 14 enter in half-conical groove 12 left cylinder jacking block 10 and right cylinder jacking block 11 to push open to both sides and make left flashboard 7 and right flashboard 8 in midway and left valve barrel 2 and the grappling of right valve barrel 3 internal surface, after left flashboard 7 and right flashboard 8 put in place, valve plate seat 9 is slack, valve rod 6 continues to move downward, cylindrically coiled spring 16 is compressed, top 14 enter the half-conical groove 12 of left cylinder jacking block 10 and right cylinder jacking block 11 and promote left cylinder jacking block 10 and flashboard 7 and the 8 liang of lateral movements of right flashboard left of right cylinder jacking block 11, extrude left flashboard 7 and right flashboard 8 respectively by two springs 13 and then compress left valve seat 4 and right valve seat 5, spring 13 adopts harder spring (distortion elastic force is larger), the distortion that spring 13 is less can obtain larger elastic force, spring 13 is compressed, make, between left flashboard 7 and left valve seat 4 and between right flashboard 8 and right valve seat 5, there is larger impacting force, reach desirable sealing effect.When from buttoned-up status in opening state process, valve rod 6 continues to move upward, top 14 first rise the left cylinder jacking block 10 of disengaging and right cylinder jacking block 11, spring 13 resets, relative pressure between left flashboard 7 and left valve seat 4 interior edge face and between right flashboard 8 and right valve seat 5 interior edge face is zero, frictional force between flashboard 7 and left valve seat 4 interior edge face and between right flashboard 8 and right valve seat 5 interior edge face is zero, easily mentions left flashboard 7 and right flashboard 8 until valve is opened completely.The present invention is in unlatching or closing process, relative pressure, frictional force is not had to be zero between flashboard and valve interior surface and between flashboard and valve seat end face, valve opening or close laborsaving, flashboard, valve body and valve seat do not wear and tear or wear and tear less, higher pressure medium can be carried, long service life.
After described left cylinder jacking block 10 and the laminating of right cylinder jacking block 11, the half-conical groove 12 on the half-conical groove 12 on left cylinder jacking block 10 and right cylinder jacking block 11 forms complete circle taper hole; The tapering of half-conical groove 12 is identical with the tapering of top 14.In valve closing process, top 14 can match with the conical surface of half-conical groove 12, make left cylinder jacking block 10 and right cylinder jacking block 11 uniform force.Left cylinder jacking block 10 and right cylinder jacking block 11 can be pushed open to both sides again while valve rod 6 own rotation, be applicable to the valve rod of screw rod transmission.
Be provided with limiting stopper 17 below described valve plate seat 9, center valve body 1 is provided with support block 18, and described limiting stopper 17 is corresponding with support block 18; When limiting stopper 17 contacts with support block 18, being positioned at bottom on center valve body 1 bottom interior surface of left flashboard 7 and right flashboard 8.Said structure can be avoided left flashboard 7 and right flashboard 8 to contact with center valve body 1 bottom interior surface causing left flashboard 7 and right flashboard 8 bottom can not be adjacent to completely with left valve seat 4 and right valve seat 5.
Claims (3)
1. a two dull and stereotyped hard seal gate valve, comprise center valve body (1), left valve barrel (2), right valve barrel (3), left valve seat (4), right valve seat (5), valve rod (6), left flashboard (7), right flashboard (8) and valve plate seat (9), the internal surface of left valve barrel (2) and right valve barrel (3) is parallel to each other, left valve seat (4) is concordant with right valve barrel (3) internal surface with left valve barrel (2) respectively with the interior edge face of right valve seat (5), valve plate seat (9) top connects valve rod (6), left flashboard (7) and the two ends of right flashboard (8) movable set below valve plate seat (9), it is characterized in that: in described valve plate seat (9), be arranged with left cylinder jacking block (10) and right cylinder jacking block (11), the corresponding surface of left cylinder jacking block (10) and right cylinder jacking block (11) is equipped with half-conical groove (12), spring (13) is equipped with between left cylinder jacking block (10) and left flashboard (7) and between right cylinder jacking block (11) and right flashboard (8), the bottom of valve rod (6) is provided with beveled tip (14), the bottom outer wall of valve rod (6) is provided with circular groove (15), the top of valve plate seat (9) is socketed in circular groove (15) and also can axially moves up and down relative to valve rod (6) and rotate relative to valve rod (6) circumference, cylindrically coiled spring (16) is provided with between valve rod (6) and valve plate seat (9), cylindrically coiled spring (16) is enclosed within top (14) outward, when valve is in opening state, described spring (13) is in nature extended configuration, more than 1mm gap is had between left flashboard (7) and left valve barrel (2) internal surface and between right flashboard (8) and right valve barrel (3) internal surface, when valve is in closed condition, described spring (13) is compressed, and is in impaction state between left flashboard (7) and left valve seat (4) interior edge face and between right flashboard (8) and right valve seat (5) interior edge face.
2. the two dull and stereotyped hard seal gate valve of one according to claim 1, it is characterized in that: after described left cylinder jacking block (10) and right cylinder jacking block (11) are fitted, the half-conical groove (12) on left cylinder jacking block (10) and the half-conical groove (12) on right cylinder jacking block (11) form complete circle taper hole; The tapering of half-conical groove (12) is identical with the tapering of top (14).
3. the two dull and stereotyped hard seal gate valve of one according to claim 1 and 2, it is characterized in that: described valve plate seat (9) below is provided with limiting stopper (17), center valve body (1) is provided with support block (18), and described limiting stopper (17) is corresponding with support block (18); When limiting stopper (17) contacts with support block (18), being positioned at bottom on center valve body (1) bottom interior surface of left flashboard (7) and right flashboard (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510936246.4A CN105351550B (en) | 2015-12-16 | 2015-12-16 | A kind of hard seal gate valve of double flat plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510936246.4A CN105351550B (en) | 2015-12-16 | 2015-12-16 | A kind of hard seal gate valve of double flat plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105351550A true CN105351550A (en) | 2016-02-24 |
| CN105351550B CN105351550B (en) | 2017-11-03 |
Family
ID=55327581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510936246.4A Active CN105351550B (en) | 2015-12-16 | 2015-12-16 | A kind of hard seal gate valve of double flat plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351550B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952919A (en) * | 2016-06-01 | 2016-09-21 | 成都格瑞思文化传播有限公司 | Novel leakproof valve |
| CN107859751A (en) * | 2017-11-16 | 2018-03-30 | 温州职业技术学院 | A kind of machinery valve device of position locking |
| CN109210224A (en) * | 2018-10-10 | 2019-01-15 | 中冶南方工程技术有限公司 | Two way seal gate valve |
| CN112197053A (en) * | 2020-10-16 | 2021-01-08 | 温州市维耐特阀门有限公司 | Gate valve and operation method thereof |
| CN112728145A (en) * | 2020-12-21 | 2021-04-30 | 何松 | Double-sided gate valve |
| CN116146731A (en) * | 2023-03-20 | 2023-05-23 | 冈野集团有限公司 | Gate valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB285221A (en) * | 1927-01-14 | 1928-02-16 | Tom Frederick Gray | Improvements in valves |
| CN1837656A (en) * | 2006-01-18 | 2006-09-27 | 胡金木 | High-temperature high-pressure self-sealing gate valve with double flat shutter board |
| CN103090034A (en) * | 2013-01-18 | 2013-05-08 | 南方阀门制造有限公司 | Wedge-caulking parallel sluice valve |
| CN203239970U (en) * | 2013-05-02 | 2013-10-16 | 伯特利阀门集团有限公司 | Combined wedge-shaped expansion and contracting double-plate valve |
| CN203442181U (en) * | 2013-05-31 | 2014-02-19 | 胡相兰 | Adjustable parallel double-disc gate valve |
| CN104653828A (en) * | 2013-11-21 | 2015-05-27 | Vat控股公司 | Method for operating a valve |
| CN205315751U (en) * | 2015-12-16 | 2016-06-15 | 温州职业技术学院 | Hard sealing gate valve of two flat boards |
-
2015
- 2015-12-16 CN CN201510936246.4A patent/CN105351550B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB285221A (en) * | 1927-01-14 | 1928-02-16 | Tom Frederick Gray | Improvements in valves |
| CN1837656A (en) * | 2006-01-18 | 2006-09-27 | 胡金木 | High-temperature high-pressure self-sealing gate valve with double flat shutter board |
| CN103090034A (en) * | 2013-01-18 | 2013-05-08 | 南方阀门制造有限公司 | Wedge-caulking parallel sluice valve |
| CN203239970U (en) * | 2013-05-02 | 2013-10-16 | 伯特利阀门集团有限公司 | Combined wedge-shaped expansion and contracting double-plate valve |
| CN203442181U (en) * | 2013-05-31 | 2014-02-19 | 胡相兰 | Adjustable parallel double-disc gate valve |
| CN104653828A (en) * | 2013-11-21 | 2015-05-27 | Vat控股公司 | Method for operating a valve |
| CN205315751U (en) * | 2015-12-16 | 2016-06-15 | 温州职业技术学院 | Hard sealing gate valve of two flat boards |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952919A (en) * | 2016-06-01 | 2016-09-21 | 成都格瑞思文化传播有限公司 | Novel leakproof valve |
| CN107859751A (en) * | 2017-11-16 | 2018-03-30 | 温州职业技术学院 | A kind of machinery valve device of position locking |
| CN107859751B (en) * | 2017-11-16 | 2019-02-12 | 温州职业技术学院 | A kind of machinery valve device of position locking |
| CN109210224A (en) * | 2018-10-10 | 2019-01-15 | 中冶南方工程技术有限公司 | Two way seal gate valve |
| CN112197053A (en) * | 2020-10-16 | 2021-01-08 | 温州市维耐特阀门有限公司 | Gate valve and operation method thereof |
| CN112728145A (en) * | 2020-12-21 | 2021-04-30 | 何松 | Double-sided gate valve |
| CN116146731A (en) * | 2023-03-20 | 2023-05-23 | 冈野集团有限公司 | Gate valve |
| CN116146731B (en) * | 2023-03-20 | 2023-10-20 | 冈野集团有限公司 | Gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105351550B (en) | 2017-11-03 |
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Effective date of registration: 20180627 Address after: 215127 35 Tung Zhuang Road, Luzhi Town, Wuzhong District, Suzhou, Jiangsu Patentee after: Suzhou bolt fluid control Co., Ltd. Address before: 325036 Wenzhou City National University Science Park incubator, No. 38 Dongfang South Road, Ouhai District, Wenzhou, Zhejiang Patentee before: Wenzhou Vocational & Technical College |