CN206398119U - A kind of dual drive activity folding wedge face flashboard substep action type gate valve - Google Patents
A kind of dual drive activity folding wedge face flashboard substep action type gate valve Download PDFInfo
- Publication number
- CN206398119U CN206398119U CN201720015308.2U CN201720015308U CN206398119U CN 206398119 U CN206398119 U CN 206398119U CN 201720015308 U CN201720015308 U CN 201720015308U CN 206398119 U CN206398119 U CN 206398119U
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- Prior art keywords
- flashboard
- valve
- bonnet
- movable
- positioning sleeve
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- 230000000694 effects Effects 0.000 title claims abstract description 16
- 230000009977 dual effect Effects 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 16
- 241001484259 Lacuna Species 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000010757 Reduction Activity Effects 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 abstract 1
- 239000003550 marker Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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Abstract
A kind of dual drive activity folding wedge face flashboard substep action type gate valve includes：Valve body, bonnet, electric device, valve rod and movable flashboard.It is flexible with ovable valve stem by electric device, drives guide's flashboard and movable flashboard contract type to seal or open the hole of valve seat and valve rear valve base before valve, so as to reach the purpose for opening and closing gate valve.In order to reduce the operating physical force that valve rod is born, hole is provided with the middle part of the second movable flashboard, the purpose for the arrangement is that, when needing to open gate valve, for the frictional force between reduction activity flashboard and valve seat, it is exactly to allow chamber inside and outside movable flashboard to set up pressure difference by this hole, movable flashboard is departed from valve seat before opening.So as to reduce operating physical force, operating mechanism is not allowed fragile.So, what the intensity of the operating element in gate valve can be designed is smaller, so as to reduce gate valve appearance and size, or adds the service life of gate valve.Pilot valve, movable gate valve connected mode it is easy to disassemble, while also allowing for the replacing after abrasion.
Description
Technical field
The utility model belongs to high temperature, high-pressure system gate valve field, more particularly to a kind of dual drive activity folding wedge face
Flashboard substep action type gate valve.
Background technology
Nuclear reactor and the main gate valve of primary Ioops system are the important guarantees of system safety operation, when system is normally run
When, the gate valve provides flow channels for reactor-loop system operation, when system loss of-coolant accident (LOCA) occurs or because system overhaul is needed
Will paragraph by paragraph or total system isolation when, the gate valve can realize closing isolation features, be system repairing and maintenance try to gain time precious to one.
Existing country's primary Ioops main line system employs electrodynamic type gate valve, and the gate valve is driven using motor and speed reducer structure
Leading screw rotary output force square fixes flashboard to lift or push away drop, realizes the keying function of gate valve.
Because the temperature and pressure that primary Ioops system is normally run is higher, accident condition and the pole of consideration system are needed in addition
Unusual service condition is held, it is necessary to meet design pressure 17.2MPa large differential pressure open-close requirement, causes medium suffered on flashboard for sluice valve
Frictional force between pressure and flashboard and valve seat is very huge, in order to overcome the external force suffered by flashboard, it is necessary to which gate valve Denso is defeated
Go out great torque to realize the keying function of flashboard.Therefore, the leading screw of the gate valve bear unthinkable rotary torsion and
Tension, causes the mechanical performance index such as tensile strength, the yield strength of most metal materials can not meet gate valve silk
The design requirement of thick stick.Easily there are the accidents such as leading screw fracture.
Utility model content
The technical problem to be solved in the present invention is to provide a kind of dual drive activity folding wedge face flashboard substep action type gate valve,
Movable flashboard is departed from valve seat before opening, is reached movable flashboard shutoff valve seat behind precalculated position, filled using totally enclosed electric
Put as drive device, thoroughly to solve, flashboard scratch present in electric gate valve is serious, service life is short, flashboard frictional force
Greatly, the problems such as valve rod is easily broken off.
The technical scheme of use
A kind of dual drive activity folding wedge face flashboard substep action type gate valve includes：Electric device, pressure ring, feed screw nut, valve
Lid, valve rod, spring, spring base, the first positioning sleeve, flashboard body, the first movable flashboard, guide's flashboard, the first flashboard ring, the second lock
Valve seat, valve rear valve base, valve body, the second movable flashboard, sealing gasket, the first connection component, upper sealing valve seat, first before plate ring, valve
Bearing, second bearing, the second positioning sleeve and the second connection component.It is characterized in that：
Guide's flashboard is inserted from flashboard body upper end hole.
The lower end of first positioning sleeve is inserted from the upper port of flashboard body, is fixedly connected between the first positioning sleeve and flashboard body.
Spring base lower end is inserted from the upper port of flashboard body, and the lower end of spring base props up the upper end of the first positioning sleeve, spring base and flashboard
It is fixedly connected between body.
The lower end of spring props up the second face of spring base.
The lower end of valve rod is passed through from the upper end hole of the upper end hole, the upper end hole of spring base and the first positioning sleeve of spring, valve rod
Bottom insert in the T-slot on guide's flashboard top, the upper end of spring props up the first face of valve rod.
Second flashboard ring is inserted in the first movable flashboard first groove.
The left port of right-hand member from the flashboard body of first movable flashboard is inserted.
First flashboard ring is inserted in the second movable flashboard second groove.
The right output port of left end from the flashboard body of second movable flashboard is inserted.
The bottom of valve rod, the bottom of the first positioning sleeve, the bottom of flashboard body, the first movable flashboard and the second movable flashboard are put
Enter before valve between valve seat and valve rear valve base.
The left side of first movable flashboard props up valve seat right side before valve.The right side of second movable flashboard props up valve after valve
The left side of seat.
The left side of guide's flashboard props up the right side of the first movable flashboard.The right side of guide's flashboard props up the second activity
The left side of flashboard.
The left end of valve seat is inserted in the first of valve body before valve, and it is second intraoral that the right-hand member of valve rear valve base inserts valve body.
Upper sealing valve seating enters in the centre bore of bonnet, and the lower surface of upper sealing valve seat and the 5th face of bonnet are same
In plane.
Clutch shaft bearing is inserted in the centre bore of bonnet, and the lower surface of clutch shaft bearing props up the fourth face of bonnet.Clutch shaft bearing
External diameter and bonnet centre bore in coordinate through gap.
The lower end of feed screw nut is inserted from the upper port of the centre bore of bonnet, and the octahedral of feed screw nut props up clutch shaft bearing
Upper surface.
The upper end of valve rod is passed through from the bottom of upper sealing valve seat centre bore, the lower end center with feed screw nut on valve rod top
Hole is threadedly coupled, and gap coordinates.
Second bearing is inserted from the upper port of bonnet central bore, and the external diameter of second bearing and the center interporal lacuna of bonnet are matched somebody with somebody
Close.The lower surface of second bearing props up the 7th face of feed screw nut.
Pressure ring is inserted from the upper port of bonnet central bore.Pressure ring is socketed the top of feed screw nut, and gap coordinates.Pressure ring lower end
Face props up the upper surface of second bearing.
Second positioning sleeve is inserted from the upper port of bonnet central bore, and gap coordinates.The lower surface of second positioning sleeve props up pressure
The upper surface of ring.The upper surface of second positioning sleeve props up the 9th face of electric device.
The centre bore of the second positioning sleeve is inserted in electric device bottom, and the axle of electric device bottom and the upper end of feed screw nut are solid
Fixed connection.The corresponding flange hole flange hole corresponding with bonnet upper end of electric device is fixed by the second connection component to be connected
Connect.
6th face of bonnet props up the upper surface of valve body, and the corresponding flange hole of bonnet lower end is corresponding with valve body upper end
Flange hole is fixedly connected by a connection component.
Electric device, the first connection component and the second connection component are commercially available prod.
Advantage
（One）, movable flashboard use activity telescopic structure, guide's flashboard can be by movable flashboard chamber pressure after opening
Discharge, valve cavity pressure by movable flashboard, inwardly lift off a seat by compression, and torque needed for gate valve is opened is small, effectively solves flashboard friction
The problem of power is big, scratch is serious and valve rod is easily broken off.
（Two）, drive device need to only control guide's flashboard open and close and push-and-pull main gate-board up and down motion, required keying torque
Low, reduction valve rod or leading screw risk of breakage, while saving the energy, effectively increase the service life.
（Three）, guide's flashboard use underslung structure, have certain automatic centering function of taking a seat, effectively improve valve seat close
Sealing property.
（Four）, between valve rod (leading screw) and flashboard body increase control spring, can be achieved flashboard group run to valve position
Guide's flashboard is turned off afterwards, it is ensured that flashboard group closed position is accurate.Effectively increase the service life, improve valve base seal property.
Brief description of the drawings
Fig. 1 is a kind of double contract face flashboard substep action type gate valve assembling schematic diagrams of dual drive activity；
Fig. 2 is flashboard body structural representation；
Fig. 3 is Fig. 2 sectional views A-A；
Fig. 4 is Fig. 2 left view；
Fig. 5 is the first movable gate plate structure schematic diagram；
Fig. 6 is Fig. 5 top view；
Fig. 7 is Fig. 5 sectional views B-B；
Fig. 8 is the second movable gate plate structure schematic diagram；
Fig. 9 is Fig. 8 top view；
Figure 10 is Fig. 8 sectional views C-C；
Figure 11 is stem structure and station location marker figure；
Figure 12 is the structure and station location marker figure of spring base；
Figure 13 is the structure and station location marker figure of bonnet；
Figure 14 is the structure and station location marker figure of valve body；
Figure 15 screw-nut structures and station location marker figure；
Figure 16 electric device station location marker figures.
Embodiment
A kind of dual drive activity folding wedge face flashboard substep action type gate valve includes：Electric device 1, pressure ring 2, feed screw nut 3,
The movable flashboard 10 of bonnet 4, valve rod 5, spring 6, spring base 7, the first positioning sleeve 8, flashboard body 9, first, guide's flashboard 11, first
The movable flashboard 17 of valve seat 14 before flashboard ring 12, the second flashboard ring 13, valve, valve rear valve base 15, valve body 16, second, sealing gasket 18, the
One connection component 19, upper sealing valve seat 20, clutch shaft bearing 21, second bearing 22, the second positioning sleeve 23 and the second connection component 24；
It is characterized in that：
Guide's flashboard 11 is inserted from the upper end hole of flashboard body 9；
The lower end of first positioning sleeve 8 is inserted from the upper port of flashboard body 9, fixed between the first positioning sleeve 8 and flashboard body 9 to connect
Connect；The lower end of spring base 7 is inserted from the upper port of flashboard body 9, and the lower end of spring base 7 props up the upper end of the first positioning sleeve 8, spring base
It is fixedly connected between 7 and flashboard body 9；
The lower end of spring 6 props up the second face 28 of spring base 7；
The lower end of valve rod 5 is passed through from the upper end hole of the upper end hole of spring 6, the upper end hole of spring base 7 and the first positioning sleeve 8,
The bottom of valve rod 5 is inserted in the T-slot on the top of guide's flashboard 11, and the upper end of spring 6 props up the first face 27 of valve rod 5；
Second flashboard ring 13 is inserted in the first movable first groove 25 of flashboard 10；
The left port of right-hand member from the flashboard body 9 of first movable flashboard 10 is inserted；
First flashboard ring 12 is inserted in the second movable second groove 26 of flashboard 17；
The right output port of left end from the flashboard body 9 of second movable flashboard 17 is inserted；
The bottom of valve rod 5, the bottom of the first positioning sleeve 8, the bottom of flashboard body 9, the first movable activity of flashboard 10 and second
Flashboard 17 is inserted before valve between valve seat 14 and valve rear valve base 15；
The left side of first movable flashboard 10 props up the right side of valve seat 14 before valve；The right side of second movable flashboard 17 is propped up
The left side of valve rear valve base 15；
The left side of guide's flashboard 11 props up the right side of the first movable flashboard 10；The right side of guide's flashboard 11 props up
The left side of two movable flashboards 17；
The left end of valve seat 14 is inserted in the first 33 of valve body 16 before valve, and the right-hand member of valve rear valve base 15 inserts the of valve body 16
In two mouthful 34；
Upper sealing valve seat 20 is inserted in the centre bore of bonnet 4, the lower surface and the 5th face 31 of bonnet 4 of upper sealing valve seat 20
In approximately the same plane；
Clutch shaft bearing 21 is inserted in the centre bore of bonnet 4, and the lower surface of clutch shaft bearing 21 props up the fourth face 30 of bonnet 4；
The external diameter of clutch shaft bearing 21 in the centre bore of bonnet 4 through gap with coordinating；
The lower end of feed screw nut 3 is inserted from the upper port of the centre bore of bonnet 4, and the octahedral 36 of feed screw nut 3 props up
The upper surface of one bearing 21；
The upper end of valve rod 5 from upper sealing valve seat 20 centre bores bottom pass through, the top of valve rod 5 with feed screw nut 3
Centre bore threaded connection is held, gap coordinates；
Second bearing 22 is inserted from the upper port of the centre bore of bonnet 4, between the external diameter of second bearing 22 and the centre bore of bonnet 4
Gap coordinates；The lower surface of second bearing 22 props up the 7th face 35 of feed screw nut 3；
The upper port of pressure ring 2 from the centre bore of bonnet 4 is inserted；Pressure ring 2 is socketed the top of feed screw nut 3, and gap coordinates；Pressure ring
2 lower surfaces prop up the upper surface of second bearing 22；
The upper port of second positioning sleeve 23 from the centre bore of bonnet 4 is inserted, and gap coordinates；The lower surface of second positioning sleeve 23 is supported
The firmly upper surface of pressure ring 2；The upper surface of second positioning sleeve 23 props up the 9th face 37 of electric device 1；
The centre bore of the second positioning sleeve 23, axle and the feed screw nut 3 of the bottom of electric device 1 are inserted in the bottom of electric device 1
Upper end is fixedly connected；The corresponding flange hole of electric device 1 passes through the second connection component with the corresponding flange hole of the upper end of bonnet 4
24 are fixedly connected；
6th face 32 of bonnet 4 props up the upper surface of valve body 16, corresponding flange hole and the upper end of valve body 16 of the lower end of bonnet 4
Corresponding flange hole be fixedly connected by a connection component 19.
Operation principle
When gate valve is closed, movable flashboard formerly leads valve seat and valve rear valve base before the lower shutoff valve of flashboard wedge surface effect, works as system
It is passed through in pipeline after working media, valve body left port pressure enters movable flashboard inner chamber and valve body by the first activity ram gap
Inner chamber, because the hole in the middle part of the second movable flashboard is closed by guide's flashboard, movable flashboard shutoff valve in the presence of medium power
Rear valve base, gate valve is reliably closed.
When electric device is passed through open signal, guide's flashboard rises, between the first movable flashboard and the second movable flashboard
Pressure is let out to the right-hand member hole of valve body from the hole in the middle part of the second movable flashboard.First movable flashboard left end pressure is more than the first movable gate
Plate right-hand member pressure, the second movable flashboard right-hand member pressure is more thanSecond livesDynamic flashboard left end pressure, first, second movable flashboard is being situated between
To contract in the presence of matter pressure.Leave before valve, valve rear valve base.When leading screw drive guide's ram movement to flashboard intracoelomic cavity most
During upper end, leading screw drives guide's flashboard together to be upwardly opened together with flashboard group, and gate valve completes breakdown action.
When electric device is passed through pass valve signal, leading screw promotes control spring and drives the first movable flashboard and the second activity
Flashboard is moved downward, when the first movable flashboard and the second movable flashboard move to bottom, stop motion.Leading screw compression control
Spring promotes the hole that guide flashboard is closed in the middle part of the second movable gate, when the first movable flashboard and the second movable flashboard formerly lead flashboard
Both sides valve seat is closed under the promotion of the both sides angle of wedge, the second movable flashboard seals the left port of valve rear valve base under the effect of the pressure,
Keep reliable closed mode.
Claims (1)
1. a kind of dual drive activity folding wedge face flashboard substep action type gate valve includes：Electric device（1）, pressure ring（2）, feed screw nut
（3）, bonnet（4）, valve rod（5）, spring（6）, spring base（7）, the first positioning sleeve（8）, flashboard body（9）, the first movable flashboard
（10）, guide's flashboard（11）, the first flashboard ring（12）, the second flashboard ring（13）, valve seat before valve（14）, valve rear valve base（15）, valve
Body（16）, the second movable flashboard（17）, sealing gasket（18）, the first connection component（19）, upper sealing valve seat（20）, clutch shaft bearing
（21）, second bearing（22）, the second positioning sleeve（23）With the second connection component（24）；It is characterized in that：
Guide's flashboard（11）From flashboard body（9）Upper end hole is inserted；
First positioning sleeve（8）Lower end from flashboard body（9）Upper port insert, the first positioning sleeve（8）With flashboard body（9）Between it is solid
Fixed connection；Spring base（7）Lower end is from flashboard body（9）Upper port insert, spring base（7）Lower end prop up the first positioning sleeve（8）
Upper end, spring base（7）With flashboard body（9）Between be fixedly connected；
Spring（6）Lower end prop up spring base（7）The second face（28）；
Valve rod（5）Lower end from spring（6）Upper end hole, spring base（7）Upper end hole and the first positioning sleeve（8）Upper end hole wear
Cross, valve rod（5）Bottom insert guide's flashboard（11）In the T-slot on top, spring（6）Upper end prop up valve rod（5）
Simultaneously（27）；
Second flashboard ring（13）Insert the first movable flashboard（10）First groove（25）It is interior；
First movable flashboard（10）Right-hand member from flashboard body（9）Left port insert；
First flashboard ring（12）Insert the second movable flashboard（17）Second groove（26）It is interior；
Second movable flashboard（17）Left end from flashboard body（9）Right output port insert；
Valve rod（5）Bottom, the first positioning sleeve（8）Bottom, flashboard body（9）Bottom, the first movable flashboard（10）With second
Movable flashboard（17）Insert valve seat before valve（14）With valve rear valve base（15）Between；
First movable flashboard（10）Left side prop up valve seat before valve（14）Right side；Second movable flashboard（17）Right side support
Firmly valve rear valve base（15）Left side；
Guide's flashboard（11）Left side prop up the first movable flashboard（10）Right side；Guide's flashboard（11）Right side prop up
Second movable flashboard（17）Left side；
Valve seat before valve（14）Left end insert valve body（16）First（33）It is interior, valve rear valve base（15）Right-hand member insert valve body
（16）Second mouthful（34）It is interior；
Upper sealing valve seat（20）Insert bonnet（4）Centre bore in, upper sealing valve seat（20）Lower surface and bonnet（4）The 5th
Face（31）In approximately the same plane；
Clutch shaft bearing（21）Insert bonnet（4）Centre bore in, clutch shaft bearing（21）Lower surface prop up bonnet（4）Fourth face
（30）；Clutch shaft bearing（21）External diameter and bonnet（4）Centre bore in coordinate through gap；
Feed screw nut（3）Lower end from bonnet（4）The upper port of centre bore insert, feed screw nut（3）Octahedral（36）Support
Firmly clutch shaft bearing（21）Upper surface；
Valve rod（5）Upper end from upper sealing valve seat（20）The bottom of centre bore is passed through, valve rod（5）Top and feed screw nut（3）
The threaded connection of lower end centre bore, gap coordinates；
Second bearing（22）From bonnet（4）The upper port of centre bore is inserted, second bearing（22）External diameter and bonnet（4）Center
Interporal lacuna coordinates；Second bearing（22）Lower surface prop up feed screw nut（3）The 7th face（35）；
Pressure ring（2）From bonnet（4）The upper port of centre bore is inserted；Pressure ring（2）It is socketed feed screw nut（3）Top, gap coordinate；
Pressure ring（2）Lower surface props up second bearing（22）Upper surface；
Second positioning sleeve（23）From bonnet（4）The upper port of centre bore is inserted, and gap coordinates；Second positioning sleeve（23）Lower surface
Prop up pressure ring（2）Upper surface；Second positioning sleeve（23）Upper surface prop up electric device（1）The 9th face（37）；
Electric device（1）The second positioning sleeve is inserted in bottom（23）Centre bore, electric device（1）The axle and feed screw nut of bottom
（3）Upper end be fixedly connected；Electric device（1）Corresponding flange hole and bonnet（4）The corresponding flange hole of upper end passes through
Two connection components（24）It is fixedly connected；
Bonnet（4）The 6th face（32）Prop up valve body（16）Upper surface, bonnet（4）The corresponding flange hole and valve body of lower end
（16）The corresponding flange hole of upper end passes through a connection component（19）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015308.2U CN206398119U (en) | 2017-01-06 | 2017-01-06 | A kind of dual drive activity folding wedge face flashboard substep action type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015308.2U CN206398119U (en) | 2017-01-06 | 2017-01-06 | A kind of dual drive activity folding wedge face flashboard substep action type gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206398119U true CN206398119U (en) | 2017-08-11 |
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ID=59512812
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720015308.2U Expired - Fee Related CN206398119U (en) | 2017-01-06 | 2017-01-06 | A kind of dual drive activity folding wedge face flashboard substep action type gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206398119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763849A (en) * | 2017-01-06 | 2017-05-31 | 鞍山电磁阀有限责任公司 | A kind of dual drive activity folding wedge face flashboard substep action type gate valve |
-
2017
- 2017-01-06 CN CN201720015308.2U patent/CN206398119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763849A (en) * | 2017-01-06 | 2017-05-31 | 鞍山电磁阀有限责任公司 | A kind of dual drive activity folding wedge face flashboard substep action type gate valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 |
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| CF01 | Termination of patent right due to non-payment of annual fee |