CN105351550B - A kind of hard seal gate valve of double flat plate - Google Patents
A kind of hard seal gate valve of double flat plate Download PDFInfo
- Publication number
- CN105351550B CN105351550B CN201510936246.4A CN201510936246A CN105351550B CN 105351550 B CN105351550 B CN 105351550B CN 201510936246 A CN201510936246 A CN 201510936246A CN 105351550 B CN105351550 B CN 105351550B
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- jacking block
- seat
- 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.)
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Links
- 238000010030 laminating Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
Abstract
The present invention relates to a kind of hard seal gate valve of double flat plate.The problem of mainly solving larger frictional force between the hard seal gate valve flashboard of existing double flat plate and valve body and valve seat, valve opening or close laborious, more serious and short service life of wearing and tearing.It is characterized in that：Left cylinder jacking block (10) and right cylinder jacking block (11) are arranged with described valve plate seat (9), half-conical groove (12) is equipped with the corresponding surface of left cylinder jacking block (10) and right cylinder jacking block (11), spring (13) is equipped 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 hard seal gate valve of double flat plate is during being turned on and off, and valve opening or closing are laborsaving, and flashboard, valve body and valve seat do not wear and tear or worn and torn smaller, can carry higher pressure medium, and service life is long.
Description
Technical field
The present invention relates to a kind of valve, and in particular to a kind of hard seal gate valve of double flat plate.
Background technology
Flat gate valve belongs to stop valve class, and it acts on the medium being to turn on or block in pipeline, mainly there is complete closure
Or fully open two kinds of working conditions.The hard seal gate valve of double flat plate is to use two parallel flashboards and two valve seats, medium
Entrance point and port of export two way seal.The existing hard seal gate valve of double flat plate includes 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, and valve seat is divided into left valve seat and right valve seat, left valve barrel and right valve
The inner surface of body is parallel to each other and is clamped in the two ends of center valve body, and left valve barrel and right valve barrel are fixed by stud, left valve
Inner face of the inner surface of body and right valve barrel respectively with left valve seat and right valve seat is concordant, and left valve seat and right valve seat use hard alloy
With being also welded with hard alloy layer, valve plate seat top on the corresponding surface of left valve seat and right valve seat on material, left flashboard and right flashboard
Connect in valve rod, the two ends of left flashboard and right flashboard movable set below valve plate seat, valve plate seat and be provided with spring, the two ends of spring
Contradict respectively on left flashboard and right flashboard, under the action of the spring, left flashboard and right flashboard can respectively with left valve seat and the right side
Certain thrust is kept between the inner face and valve interior surface of valve seat, left flashboard and right flashboard and valve seat when valve is closed
Inner face is adjacent to, to reach preferable sealing property.There is following technological deficiency in this hard seal gate valve of double flat plate：Valve is closed
When, the thrust of left flashboard and right flashboard is that the precompression for leaning on spring is realized, if spring force is too small, left flashboard and You Zha
The thrust of plate is smaller, and sealing effectiveness is poor, is also easy to produce leakage.In order to reach preferable sealing effectiveness, the elastic force of usual spring is all
Larger, valve is when being turned on and off between the inner surface of left and right flashboard and left and right valve body and left and right flashboard and left and right valve
Frictional force between the inner face of seat is larger, and valve opening or closing are laborious, and it is more serious to wear and tear, and service life is short.
The content of the invention
In order to overcome, the frictional force between the hard seal gate valve flashboard of existing double flat plate and valve body and valve seat is larger, valve is opened
Deficiency laborious, that abrasion is more serious and short service life is opened or closes, the present invention provides a kind of hard seal gate valve of double flat plate, should
The hard seal gate valve of double flat plate is during being turned on and off, between flashboard and valve interior surface and between flashboard and valve seat end face
It is zero not have relative pressure, frictional force, and valve opening or closing are laborsaving, and flashboard, valve body and valve seat do not wear and tear or worn and torn smaller,
Higher pressure medium can be carried, service life is long.
The technical scheme is that：A kind of hard seal gate valve of double flat plate includes center valve body, left valve barrel, right valve barrel, a left side
The inner surface of valve seat, right valve seat, valve rod, left flashboard, right flashboard and valve plate seat, left valve barrel and right valve barrel is parallel to each other, left valve seat
Inner face with right valve seat is concordant with left valve barrel and right valve barrel inner surface respectively, valve plate seat top connection valve rod, left flashboard and the right side
Left cylinder jacking block and right cylinder jacking block are arranged with two ends of the flashboard movable set below valve plate seat, described valve plate seat,
Half-conical groove is equipped with the corresponding surface of left cylinder jacking block and right cylinder jacking block, between left cylinder jacking block and left flashboard and right circle
Spring is equipped between capital block and right flashboard, the bottom of valve rod is provided with beveled tip, and the bottom outer wall of valve rod is provided with annular
Groove, the top of valve plate seat be socketed in annular groove and can relative stem shaft to moving up and down and circumferentially rotated with respect to valve rod,
Cylindrically coiled spring is provided between valve rod and valve plate seat, cylindrically coiled spring is enclosed on top outer；When valve is in opening,
Described spring is between nature extended configuration, left flashboard and left valve barrel inner surface and between right flashboard and right valve barrel inner surface
There are more than 1mm gaps, when valve is closed, described spring is compressed, between left flashboard and left valve seat inner face
And impaction state is between right flashboard and right valve seat inner face.
After described left cylinder jacking block and the laminating of right cylinder jacking block, half-conical groove and right cylinder jacking block on left cylinder jacking block
On half-conical groove form complete conical bore；The taper of half-conical groove is identical with top taper.
Described valve plate seat lower section is provided with limited block, and center valve body is provided with support block, described limited block and support block
It is corresponding；When limited block is contacted with support block, the bottom of left flashboard and right flashboard is located on center valve body bottom interior surface.
The present invention has the advantages that：Due to taking above-mentioned technical proposal, in valve opening or closing process, lock
There is no relative pressure, frictional force to be zero between plate and valve interior surface and between flashboard and valve seat end face, valve opening or pass
Close laborsaving, flashboard, valve body and valve seat do not wear and tear or worn and torn smaller, can carry higher pressure medium, and service life is long.
Brief description of the drawings
Accompanying drawing 1 is the structure sectional view of the present invention.
Accompanying drawing 2 is the structure sectional view of full open position of the present invention.
Accompanying drawing 3 is enlarged drawing at A in Fig. 1.
Accompanying drawing 4 is enlarged drawing at B in Fig. 2.
Accompanying drawing 5 is the structural representation of left cylinder jacking block 10 and right cylinder jacking block 11 in Fig. 1.
1- center valve bodies in figure, 2- left valve barrels, 3- right valve barrels, the left valve seats of 4-, the right valve seats of 5-, 6- valve rods, the left flashboards of 7-, 8-
Right flashboard, 9- valve plates seat, the left cylinder jacking blocks of 10-, the right cylinder jacking blocks of 11-, 12- half-conical grooves, 13- springs, 14- is top, 15- rings
Shape groove, 16- cylindrically coiled springs, 17- limited blocks, 18- support blocks.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 1~Fig. 5, a kind of hard seal gate valve of double flat plate, including center valve body 1, left valve barrel 2, right valve barrel 3, a left side
The inner surface of valve seat 4, right valve seat 5, valve rod 6, left flashboard 7, right flashboard 8 and valve plate seat 9, left valve barrel 2 and right valve barrel 3 is mutually put down
OK, the inner face of left valve seat 4 and right valve seat 5 is concordant with left valve barrel 2 and the inner surface of right valve barrel 3 respectively, valve plate 9 top connection valves of seat
Left cylinder is arranged with bar 6, the two ends of left flashboard 7 and the movable set of right flashboard 8 below valve plate seat 9, described valve plate seat 9
Half-conical groove 12 is equipped with the corresponding surface of jacking block 10 and right cylinder jacking block 11, left cylinder jacking block 10 and right cylinder jacking block 11, it is left
Spring 13, the bottom of valve rod 6 are equipped between cylinder jacking block 10 and left flashboard 7 and between right cylinder jacking block 11 and right flashboard 8
Provided with beveled tip 14, the bottom outer wall of valve rod 6 is provided with annular groove 15, and the top of valve plate seat 9 is socketed in annular groove 15 simultaneously
It can axially be moved up and down with respect to valve rod 6 and relative valve rod 6 is circumferentially rotated, cylindrical screw is provided between valve rod 6 and valve plate seat 9
Spring 16, cylindrically coiled spring 16 is enclosed on outside top 14；When valve is in opening, described spring 13 stretches in nature
There are more than 1mm gaps between state, left flashboard 7 and left valve barrel 2 inner surface and between right flashboard 8 and the inner surface of right valve barrel 3, when
When valve is closed, described spring 13 is compressed, between left flashboard 7 and left valve seat 4 inner face and right flashboard 8 with
Impaction state is between the right inner face of valve seat 5.Due to taking above-mentioned technical proposal, in valve from opening to completely closing
In state procedure, there is gap between left flashboard 7 and left valve barrel 2 inner surface and between right flashboard 8 and the inner surface of right valve barrel 3,
Between namely left flashboard 7 and the inner surface of left valve barrel 2 and the relative pressure between right flashboard 8 and the inner surface of right valve barrel 3 is zero,
Between left flashboard 7 and left valve barrel 2 inner surface and the frictional force between right flashboard 8 and the inner surface of right valve barrel 3 is zero, valve rod 6 leads to
Cross cylindrically coiled spring 16 and lower pressure is delivered to valve plate seat 9, it is to avoid left flashboard 7 and the slightly jam of right flashboard 8 top 14 enter
Pushing left cylinder jacking block 10 and right cylinder jacking block 11 to both sides open in half-conical groove 12 makes left flashboard 7 and right flashboard 8 in midway
With left valve barrel 2 and the inner surface grappling of right valve barrel 3, when left flashboard 7 and right flashboard 8 in place after, valve plate seat 9 is slack, valve rod 6 after
Continuous to move downward, cylindrically coiled spring 16 is compressed, and top 14 enter the half-conical of left cylinder jacking block 10 and right cylinder jacking block 11
Groove 12 simultaneously promotes the 8 liang of lateral movements of flashboard 7 and right flashboard to the left of left cylinder jacking block 10 and right cylinder jacking block 11, passes through two springs 13
Left flashboard 7 and right flashboard 8 are extruded respectively and then left valve seat 4 and right valve seat 5 is compressed, and spring 13 is using harder spring (deformation bullet
Power is larger), the less deformation of spring 13 can obtain larger elastic force, and spring 13 is compressed, make left flashboard 7 and left valve seat 4 it
Between and right flashboard 8 and right valve seat 5 between have larger thrust, reach preferable sealing effectiveness.When from completely closing shape
State is to during opening, and valve rod 6 is continued up, and top 14 first rise and depart from left cylinder jacking block 10 and right cylinder jacking block
11, spring 13 resets, relative between left flashboard 7 and left valve seat 4 inner face and between right flashboard 8 and the inner face of right valve seat 5
Pressure is zero, and the frictional force between flashboard 7 and the inner face of left valve seat 4 and between right flashboard 8 and the inner face of right valve seat 5 is zero,
Easily lift left flashboard 7 and right flashboard 8 until valve is fully opened.The present invention is during being turned on and off, flashboard and valve body
There is no relative pressure, frictional force to be zero between inner surface and between flashboard and valve seat end face, valve opening or laborsaving, the lock of closing
Plate, valve body and valve seat do not wear and tear or worn and torn smaller, can carry higher pressure medium, and service life is long.
After described left cylinder jacking block 10 and the laminating of right cylinder jacking block 11, half-conical groove 12 and the right side on left cylinder jacking block 10
Half-conical groove 12 on cylinder jacking block 11 forms complete conical bore；The taper of half-conical groove 12 is identical with top 14 taper.Valve
In door 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 6 own rotation of valve rod, it is adaptable to
The valve rod of screw rod transmission.
The described lower section of valve plate seat 9 is provided with limited block 17, and center valve body 1 is provided with support block 18, described limited block 17
It is corresponding with support block 18；When limited block 17 is contacted with support block 18, the bottom of left flashboard 7 and right flashboard 8 is located at intermediate valve
On the bottom interior surface of body 1.Said structure can avoid left flashboard 7 and right flashboard 8 from contacting with the bottom interior surface of center valve body 1 leading
Left flashboard 7 and the bottom of right flashboard 8 is caused completely to be adjacent to left valve seat 4 and right valve seat 5.
Claims (3)
1. a kind of hard seal gate valve of double flat plate, including center valve body (1), left valve barrel (2), right valve barrel (3), left valve seat (4), right valve
The inner surface of seat (5), valve rod (6), left flashboard (7), right flashboard (8) and valve plate seat (9), left valve barrel (2) and right valve barrel (3) is mutual
Parallel, the inner face of left valve seat (4) and right valve seat (5) is concordant with left valve barrel (2) and right valve barrel (3) inner surface respectively, valve plate seat
(9) top connection valve rod (6), the two ends of left flashboard (7) and right flashboard (8) movable set below valve plate seat (9), its feature exists
In：Left cylinder jacking block (10) and right cylinder jacking block (11), left cylinder jacking block (10) and the right side are arranged with described valve plate seat (9)
Half-conical groove (12) is equipped with the corresponding surface of cylinder jacking block (11), it is between left cylinder jacking block (10) and left flashboard (7) and right
Spring (13) is equipped between cylinder jacking block (11) and right flashboard (8), the bottom of valve rod (6) is provided with beveled tip (14), valve
The bottom outer wall of bar (6) is provided with to be socketed in annular groove (15) and can be with respect to valve rod above annular groove (15), valve plate seat (9)
(6) axially move up and down and relative valve rod (6) is circumferentially rotated, cylindrically coiled spring is provided between valve rod (6) and valve plate seat (9)
(16), cylindrically coiled spring (16) is enclosed on top (14) outside；When valve is in opening, described spring (13) is in nature
Extended configuration, has between left flashboard (7) and left valve barrel (2) inner surface and between right flashboard (8) and right valve barrel (3) inner surface
More than 1mm gaps, when valve is closed, described spring (13) is compressed, and left flashboard (7) is interior with left valve seat (4)
Impaction state is between end face and between right flashboard (8) and right valve seat (5) inner face.
2. a kind of hard seal gate valve of double flat plate according to claim 1, it is characterised in that：Described left cylinder jacking block (10)
After the laminating of right cylinder jacking block (11), the semicircle on half-conical groove (12) and right cylinder jacking block (11) on left cylinder jacking block (10)
Bore groove (12) and form complete conical bore；The taper of half-conical groove (12) is identical with the taper of top (14).
3. a kind of hard seal gate valve of double flat plate according to claim 1 or 2, it is characterised in that：Under described valve plate seat (9)
Side is provided with limited block (17), and center valve body (1) is provided with support block (18), and described limited block (17) is relative with support block (18)
Should；When limited block (17) is contacted with support block (18), the bottom of left flashboard (7) and right flashboard (8) is located at center valve body (1) bottom
On portion's inner surface.
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 CN105351550A (en) | 2016-02-24 |
| CN105351550B true CN105351550B (en) | 2017-11-03 |
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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) |
Families Citing this family (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 |
| 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 |
| CN112197053B (en) * | 2020-10-16 | 2022-09-23 | 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 |
| CN116146731B (en) * | 2023-03-20 | 2023-10-20 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105351550A (en) | 2016-02-24 |
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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 |