CN107228204A - A kind of overcritical No leakage bellows forging parallel slide valve - Google Patents
A kind of overcritical No leakage bellows forging parallel slide valve Download PDFInfo
- Publication number
- CN107228204A CN107228204A CN201710484912.4A CN201710484912A CN107228204A CN 107228204 A CN107228204 A CN 107228204A CN 201710484912 A CN201710484912 A CN 201710484912A CN 107228204 A CN107228204 A CN 107228204A
- Authority
- CN
- China
- Prior art keywords
- flashboard
- valve
- bellows
- nut
- overcritical
- 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
Links
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
- F16K3/30—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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- 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
- F16K3/188—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 by means of hydraulic forces
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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
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/06—Spindle sealings with stuffing-box ; Sealing rings with at least one ring attached to both spindle and housing
-
- 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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
Abstract
The invention discloses a kind of overcritical No leakage bellows forging parallel slide valve, including valve body, right flashboard is socketed on left flashboard and right flashboard and left flashboard are flexibly connected, spring is vertically connected between right flashboard and left flashboard, one end of valve rod is connected with handwheel, valve stem nut and locking nut through hold-down grid, bellows, filler, Packing seat and gland and the upper surface center vertical welding of flashboard frame, the other end of valve rod.This overcritical No leakage bellows forging parallel slide valve, right flashboard medial surface is that can be enclosed on the axle sleeve structure on left flashboard axis, utilize fixed block and spring, so that two pieces of parallel springs are in close contact with valve body, form a pair of parallel sealing pair, the sealing of valve is realized using the pressure itself of medium, bellows is aesthetic in appearance, valve passage has the streamline of smoothness, the flow resistance coefficient of valve is reduced, with rational sealing structure and decay resistance, service life is long, valve opening and closing torque is small, reduces labor intensity.
Description
Technical field
The present invention relates to valve technology field, especially a kind of overcritical No leakage bellows forging parallel slide valve.
Background technology
The parallel slide valve of domestic use all has the shortcomings of manufacture requires high, easily leaked, service life is short at present,
Parallel slide valve generally use double disc structure, its mainly include valve body, the valve rod stretched into valve body, be connected with valve rod a left side,
Right flashboard etc..It blocks principle, and valve rod promotes left and right flashboard to enter in the runner of valve body, and left flashboard is in valve flowing channel side
Promote the sealing surface of right flashboard to press to opposite side in the presence of pressure medium, realize the self sealss of runner, it, which exists, has the disadvantage：It is close
Need the pressure of fluid higher during envelope, pressure is relatively low can not to promote right flashboard to be close to sealing surface, therefore sealing effectiveness is poor during low pressure.
The content of the invention
It is an object of the invention to provide a kind of overcritical No leakage bellows forging parallel slide valve, with rational close
Seal structure and decay resistance, service life are long, and maintenance frequency is few, it is ensured that the zero leakage of valve rod, valve opening and closing torque is small, reduce
The advantage of labor intensity, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of overcritical No leakage bellows forging is parallel
Slide-valve, including valve body, the top of the valve body are provided with bonnet by bolt, and the inside of valve body is provided with guillotine mechanism；It is described
Guillotine mechanism is made up of flashboard frame, left flashboard, right flashboard and spring, and right flashboard is socketed on left flashboard and right flashboard and left flashboard
It is flexibly connected, spring is vertically connected between right flashboard and left flashboard, the bottom of flashboard frame is fastened on left flashboard and right flashboard
Junction；Hold-down grid is installed, the inside of bonnet is provided with valve rod and sealing mechanism at the top of the bonnet；The sealer
Structure is made up of bellows, filler, Packing seat, straight pin, gland and nut, and straight pin is engaged with nut, spiral shell through hold-down grid
Mother contacts connection with hold-down grid；One end of the valve rod passes through hold-down grid, bellows, filler, Packing seat and gland and lock
The upper surface center vertical welding of grillage, the other end of valve rod is connected with handwheel, valve stem nut and locking nut, valve stem nut and
Locking nut is engaged with valve rod, and handwheel is connected with valve handle activity, and handwheel is located between valve stem nut and locking nut and handwheel
Connection is contacted with valve stem nut and locking nut.
It is used as further scheme of the invention：The bellows, Packing seat, filler, gland and hold-down grid are from bottom to up
It is arranged in order, the bottom of filler is connected with Packing seat, the top of filler is connected with gland.
It is used as further scheme of the invention：Sealing ring is installed between the valve body and bonnet.
It is used as further scheme of the invention：The two ends of the spring are respectively connected with fixed block, fixed block respectively with right lock
Plate and the welding of left flashboard.
Compared with prior art, beneficial effect of the present invention：
This overcritical No leakage bellows forging parallel slide valve, left flashboard medial surface is axle construction, the axis of the axle construction with
The runner diameter parallel of valve body, right flashboard medial surface for that can be enclosed on the axle sleeve structure on left flashboard axis, left flashboard and right flashboard it
Between be provided with spring, utilize fixed block and spring so that two pieces of parallel springs are in close contact with valve body, are formd a pair of parallel close
Envelope is secondary, when closing left flashboard with right flashboard, and fluid media (medium) produces pressure to left flashboard and right flashboard, utilizes itself pressure of medium
Power realizes the sealing of valve, and bellows is aesthetic in appearance, and valve passage has the streamline of smoothness, reduces the flow resistance coefficient of valve,Tool
There are rational sealing structure and decay resistance, service life is long, and maintenance frequency is few, it is ensured that the zero leakage of valve rod, valve opening and closing
Torque is small, reduces the advantage of labor intensity.
Brief description of the drawings
Fig. 1 is overall structure figure of the invention.
In figure：1- valve bodies；2- bonnets；21- valve rods；3- guillotine mechanisms；31- flashboard framves；The left flashboards of 32-；The right flashboards of 33-；
34- springs；4- hold-down grids；5- sealing mechanisms；51- bellowss；52- fillers；53- Packing seats；54- straight pins；55- glands；
56- nuts；6- handwheels；7- valve stem nuts；8- locking nuts.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of overcritical No leakage bellows forging parallel slide valve, including valve
Body 1, the top of valve body 1 is provided with bonnet 2 by bolt, sealing ring is provided between valve body 1 and bonnet 2, it is hard that sealing ring is existing
Sealing, improves the sealing of valve body 1 and bonnet 2, and the inside of valve body 1 is provided with guillotine mechanism 3；Guillotine mechanism 3 is by flashboard frame 31, a left side
Flashboard 32, right flashboard 33 and spring 34 are constituted, and right flashboard 33 is socketed on left flashboard 32 and right flashboard 33 and the activity of left flashboard 32
Connection, spring 34 is vertically connected between right flashboard 33 and left flashboard 32, and the two ends of spring 34 are respectively connected with fixed block, fixed block
Welded respectively with right flashboard 33 and left flashboard 32, the left medial surface of flashboard 32 is axle construction, the axis of the axle construction and the stream of valve body 1
Road diameter parallel, the right medial surface of flashboard 33 for that can be enclosed on the axle sleeve structure on the left axle of flashboard 32, left flashboard 32 and right flashboard 33 it
Between be provided with spring 34, utilize fixed block and spring 34 so that two pieces of parallel springs 34 are in close contact with valve body 1, form one
To parallel sealing pair, when closing left flashboard 32 with right flashboard 33, fluid media (medium) produces pressure to left flashboard 32 and right flashboard 33,
The sealing of valve is realized using the pressure itself of medium, the bottom of flashboard frame 31 is fastened on the connection of left flashboard 32 and right flashboard 33
Place；The top of bonnet 2 is provided with hold-down grid 4, and the inside of bonnet 2 is provided with valve rod 21 and sealing mechanism 5；Sealing mechanism 5 by
Bellows 51, filler 52, Packing seat 53, straight pin 54, gland 55 and nut 56 are constituted, bellows 51, Packing seat 53, filler
52nd, gland 55 and hold-down grid 4 are arranged in order from bottom to up, and the bottom of filler 52 is connected with Packing seat 53, the top of filler 52
It is connected with gland 55, bellows 51 is aesthetic in appearance, valve passage has the streamline of smoothness, reduces the flow resistance coefficient of valve,Cylinder
Pin 54 is engaged with nut 56 through hold-down grid 4, and nut 56 contacts connection with hold-down grid 4, facilitate hold-down grid 4 installation and
Dismounting；One end of valve rod 21 is upper through hold-down grid 4, bellows 51, filler 52, Packing seat 53 and gland 55 and flashboard frame 31
Centre of surface vertical welding, valve rod 21, which is rotated, drives flashboard frame 31 to rotate, and the other end of valve rod 21 is connected with handwheel 6, valve stem nut 7
With locking nut 8, valve stem nut 7 and locking nut 8 are engaged with valve rod 21, and handwheel 6 is flexibly connected with valve rod 21, adjusting handle
6 position, is easy to use, and handwheel 6 is located between valve stem nut 7 and locking nut 8 and handwheel 6 and valve stem nut 7 and locking screw
The contact connection of mother 8, handwheel 6 is fixed on valve rod 21 by valve stem nut 7 and locking nut 8, with rational sealing structure and
Decay resistance, service life is long, and maintenance frequency is few, reduces operating cost, the robust Seal Design of bellows 51, it is ensured that
The zero leakage of valve rod 21 is there is provided the condition of Maintenance free, and valve opening and closing torque is small, reduces labor intensity.
In summary；This overcritical No leakage bellows forging parallel slide valve, the left medial surface of flashboard 32 is axle construction, should
The axis of axle construction and the runner diameter parallel of valve body 1, the right medial surface of flashboard 33 are that can be enclosed on the axle sleeve knot on the left axle of flashboard 32
Structure, is provided with spring 34, utilizes fixed block and spring 34 between left flashboard 32 and right flashboard 33 so that two pieces of parallel springs 34 with
Valve body 1 is in close contact, and forms a pair of parallel sealing pair, and when closing left flashboard 32 with right flashboard 33, fluid media (medium) is to left lock
Plate 32 produces pressure with right flashboard 33, the sealing of valve is realized using the pressure itself of medium, bellows 51 is aesthetic in appearance, valve
Passage has the streamline of smoothness, reduces the flow resistance coefficient of valve,With rational sealing structure and decay resistance, service life
Long, maintenance frequency is few, it is ensured that the zero leakage of valve rod, valve opening and closing torque is small, reduces the advantage of labor intensity.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (4)
1. a kind of overcritical No leakage bellows forging parallel slide valve, including valve body（1）, it is characterised in that：The valve body（1）
Top bonnet is provided with by bolt（2）, valve body（1）Inside be provided with guillotine mechanism（3）；The guillotine mechanism（3）By lock
Grillage（31）, left flashboard（32）, right flashboard（33）And spring（34）Composition, right flashboard（33）It is socketed in left flashboard（32）It is upper and right
Flashboard（33）With left flashboard（32）It is flexibly connected, spring（34）It is vertically connected on right flashboard（33）With left flashboard（32）Between, lock
Grillage（31）Bottom be fastened on left flashboard（32）With right flashboard（33）Junction；The bonnet（2）Top be provided with and fill out
Expect pressing plate（4）, bonnet（2）Inside valve rod is installed（21）And sealing mechanism（5）；The sealing mechanism（5）By bellows
（51）, filler（52）, Packing seat（53）, straight pin（54）, gland（55）And nut（56）Composition, straight pin（54）Through filler
Pressing plate（4）It is engaged with nut（56）, nut（56）With hold-down grid（4）Contact connection；The valve rod（21）One end through filling out
Expect pressing plate（4）, bellows（51）, filler（52）, Packing seat（53）And gland（55）With flashboard frame（31）Upper surface center hang down
Straight welding, valve rod（21）The other end be connected with handwheel（6）, valve stem nut（7）And locking nut（8）, valve stem nut（7）And lock
Tight nut（8）And valve rod（21）Engagement, handwheel（6）With valve rod（21）It is flexibly connected, handwheel（6）Positioned at valve stem nut（7）With
Locking nut（8）Between and handwheel（6）With valve stem nut（7）And locking nut（8）Contact connection.
2. a kind of overcritical No leakage bellows forging parallel slide valve according to claim 1, it is characterised in that：It is described
Bellows（51）, Packing seat（53）, filler（52）, gland（55）And hold-down grid（4）It is arranged in order from bottom to up, filler（52）
Bottom and Packing seat（53）Connection, filler（52）Top and gland（55）Connection.
3. a kind of overcritical No leakage bellows forging parallel slide valve according to claim 1, it is characterised in that：It is described
Valve body（1）And bonnet（2）Between sealing ring is installed.
4. a kind of overcritical No leakage bellows forging parallel slide valve according to claim 1, it is characterised in that：It is described
Spring（34）Two ends be respectively connected with fixed block, fixed block respectively with right flashboard（33）With left flashboard（32）Welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484912.4A CN107228204A (en) | 2017-06-23 | 2017-06-23 | A kind of overcritical No leakage bellows forging parallel slide valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484912.4A CN107228204A (en) | 2017-06-23 | 2017-06-23 | A kind of overcritical No leakage bellows forging parallel slide valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107228204A true CN107228204A (en) | 2017-10-03 |
Family
ID=59936325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710484912.4A Pending CN107228204A (en) | 2017-06-23 | 2017-06-23 | A kind of overcritical No leakage bellows forging parallel slide valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107228204A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6009899A (en) * | 1999-03-03 | 2000-01-04 | Power & Industrial Services Corporation | Variable orifice dual gate valve |
| CN201891860U (en) * | 2010-11-08 | 2011-07-06 | 南通国电电站阀门有限公司 | Single-face hard sealing parallel gate plate type gate valve |
| CN103410997A (en) * | 2013-08-26 | 2013-11-27 | 南通国电电站阀门有限公司 | High-pressure-relief type parallel-double-gate single side hard sealing gate valve |
| CN205639641U (en) * | 2016-05-19 | 2016-10-12 | 南通国电电站阀门股份有限公司 | Sealed stop valve that forges of overcritical small -bore bellows sphere |
| CN206958293U (en) * | 2017-06-23 | 2018-02-02 | 南通国电电站阀门股份有限公司 | A kind of overcritical No leakage bellows forging parallel slide valve |
-
2017
- 2017-06-23 CN CN201710484912.4A patent/CN107228204A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6009899A (en) * | 1999-03-03 | 2000-01-04 | Power & Industrial Services Corporation | Variable orifice dual gate valve |
| CN201891860U (en) * | 2010-11-08 | 2011-07-06 | 南通国电电站阀门有限公司 | Single-face hard sealing parallel gate plate type gate valve |
| CN103410997A (en) * | 2013-08-26 | 2013-11-27 | 南通国电电站阀门有限公司 | High-pressure-relief type parallel-double-gate single side hard sealing gate valve |
| CN205639641U (en) * | 2016-05-19 | 2016-10-12 | 南通国电电站阀门股份有限公司 | Sealed stop valve that forges of overcritical small -bore bellows sphere |
| CN206958293U (en) * | 2017-06-23 | 2018-02-02 | 南通国电电站阀门股份有限公司 | A kind of overcritical No leakage bellows forging parallel slide valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20171003 |