CN205896227U - Double -gate board sealing gate valve - Google Patents

Double -gate board sealing gate valve Download PDF

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Publication number
CN205896227U
CN205896227U CN201620805900.8U CN201620805900U CN205896227U CN 205896227 U CN205896227 U CN 205896227U CN 201620805900 U CN201620805900 U CN 201620805900U CN 205896227 U CN205896227 U CN 205896227U
Authority
CN
China
Prior art keywords
valve
sealing
flashboard
gap
seal
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.)
Expired - Fee Related
Application number
CN201620805900.8U
Other languages
Chinese (zh)
Inventor
贾功勋
许晓慧
葛茯苓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Nailide Pneumatic Conveying Co Ltd
Original Assignee
Anhui Nailide Pneumatic Conveying Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Nailide Pneumatic Conveying Co Ltd filed Critical Anhui Nailide Pneumatic Conveying Co Ltd
Priority to CN201620805900.8U priority Critical patent/CN205896227U/en
Application granted granted Critical
Publication of CN205896227U publication Critical patent/CN205896227U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a double -gate board sealing gate valve, relates to air conveying valve field, and this gate valve includes valve body, case, valve rod, valve gap and disk seat, the valve gap is installed on valve body upper portion, the valve rod passes the valve gap center and stretches into the inside cavity of valve body, the case is including controlling flashboard and flashboard frame, the flashboard frame is connected to the valve rod bottom, it installs in flashboard frame both sides to control the flashboard, the disk seat is installed inside the valve body to mutually support with left and right sides flashboard, about between flashboard and the disk seat, between valve gap and the valve body, all be provided with sealing mechanism between valve gap and the valve rod. Adopt the utility model discloses a gate valve can effectively improve current unstable, the not lasting problem of gate valve sealing performance, has the characteristics that sealing performance is good, stably lasting, not undulant, and can prolong valve life.

Description

A kind of double disc seal gate valve
Technical field
This utility model is related to air conveying valve field and in particular to a kind of double disc seal gate valve.
Background technology
Gate valve belongs to a kind of powder body, gas double mass fluid controls stop valve class, and its effect is to turn on or blocks pipe Medium in road, mainly has of completely closed or fully opens two kinds of working conditions.The sealing property of valve refers to valve seal portion Steric hindrance stops the ability of dielectric leakage, and it is one of most important technical performance index of valve.How to solve sealing problem is can not Ignore, existing solution is typically all to look for reason on the sealing surface of valve seat, and the angle of wedge of flashboard and valve seat mismatches simultaneously, The goodness of fit is poor, and flashboard is not in place, close do not wait indefinitely be also valve seepage main cause, be only adjusted on valve seat, right The research of valve tightness has certain limitation.At present, existing conventional gate valve, its sealing property need to carry further High.
Utility model content
In order to solve problems of the prior art, this utility model provides a kind of double disc seal gate valve, permissible Effectively improve the sealing property of double-flashboard gate valve.
This utility model employs the following technical solutions:
A kind of double disc seal gate valve, including valve body, valve element, valve rod, valve gap and valve seat, described valve gap is arranged on valve body Portion, described valve rod stretches into valve inner cavity through bonnet central, and described valve element includes left and right flashboard and flashboard frame, described valve rod Bottom connects flashboard frame, and described left and right flashboard is arranged on flashboard frame both sides;Described valve seat is arranged on valve inner, and and left and light brake Plate cooperates;Between described left and right flashboard and valve seat, between valve gap and valve body, between valve gap and valve rod, it is provided with sealer Structure.
Preferably, flashboard upper and lower both sides in described left and right all offer annular groove, are provided with flashboard in described annular groove Sealing ring;On described valve seat and ram seal circle correspondence position, valve seat insert is installed.
Preferably, described valve body upper inner opens up annular groove, is provided with sealing gasket in described annular groove, described valve Sealed by sealing gasket between lid and valve body.
Preferably, described valve gap top is provided with gland, is provided with gland sealing mechanism, institute between described gland and valve gap State gland sealing mechanism and abut sealing with valve rod formation.
It is further preferred that described gland sealing mechanism includes sealing, intermediate seal and lower sealing, described intermediate seal It is arranged between sealing and lower sealing.
It is further preferred that described intermediate seal includes the inner seal ring near stem side and the external seal near valve body-side Circle.
Preferably, described lower sealing lower surface is arc, and convex near stem side.
Preferably, it is bolted between described valve gap and gland.
Preferably, described valve rod and flashboard frame are using threaded.
Preferably, described upper sealing adopts polytetrafluoro using metal material, intermediate seal using fluorubber material, lower sealing Tetraene.
The beneficial effects of the utility model are:
1) on the flashboard of left and right of the present utility model, ram seal circle is installed, the valve seat of correspondence position is provided with valve seat close Seal, and both cooperate, the goodness of fit is higher, and sealing property is more preferable.
2) it is provided with sealing gasket between valve gap of the present utility model and valve body, improve the sealing between valve gap and valve body.
3) valve gap top of the present utility model is provided with gland, is provided with gland sealer between described gland and valve gap Structure, and sealing is abutted with valve rod formation by gland compacting sealing mechanism, sealing effectiveness is more preferable.
4) under, the lower surface of sealing is designed as arc, and convex near stem side, when gland compresses downwards, raised Shape structure stretches in the gap between valve gap and valve rod, reaches the effect fully sealing.
5) take technique scheme, existing Gate-valve sealing unstable properties can be effectively improved, unabiding ask Topic, the double-flashboard gate valve good seal performance of this utility model, and lasting stability, do not fluctuate, extend valve service life.
6) intermediate seal adopts fluorubber material, has self compensation effect;Lower sealing can be valve using polytetrafluoro tetraene Ash on bar is wiped off.
Brief description
Fig. 1 is structural representation of the present utility model;
Fig. 2 is a portion enlarged drawing of Fig. 1;
Fig. 3 is the b portion enlarged drawing of Fig. 1.
Reference: 1- valve body 2- valve rod 3- valve gap 4- valve seat 41- valve seat insert 5- about flashboard 51- flashboard Under sealing 82- on sealing ring 6- flashboard frame 7- gland 8- gland sealing mechanism 81-, sealing 83- inner seal ring 84- is outer close Seal 9- bolt 10- sealing gasket.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
As Figure 1-3, a kind of double disc seal gate valve, including valve body 1, valve element, valve rod 2, valve gap 3 and valve seat 4, described Valve gap 3 is arranged on valve body 1 top, and described valve rod 2 stretches into valve body 1 internal cavities through valve gap 3 center, and described valve element includes left and right Flashboard 5 and flashboard frame 6, described valve rod 2 bottom connects flashboard frame 6, and described left and right flashboard 5 is arranged on flashboard frame 6 both sides;Described valve Seat 4 is arranged on inside valve body 1, and cooperates with left and right flashboard 5.Described left and right flashboard about 5 both sides all offer annular recessed Groove, is provided with ram seal circle 51 in described annular groove;On described valve seat 4 and ram seal circle 51 correspondence position, valve is installed Seat sealing ring 41.Described valve body 1 upper inner opens up annular groove, is provided with sealing gasket 10, described valve in described annular groove Sealed by sealing gasket 10 between lid 3 and valve body 1.Described valve gap 3 top is provided with gland 7, between described gland 7 and valve gap 3 It is provided with gland sealing mechanism 8, described gland sealing mechanism 8 is formed with valve rod 2 and abuts sealing;Described gland sealing mechanism 8 wraps Include sealing 81, intermediate seal and lower sealing 82, described intermediate seal is arranged between sealing 81 and lower sealing 82;In described Between sealing include near valve rod 2 side inner seal ring 83 and near valve body 1 side exterior seal ring 84;Described lower sealing 82 lower surfaces For arc and convex near valve rod 2 side.Described upper sealing 81 adopt metal material, intermediate seal adopt fluorubber material, Lower sealing 82 adopts polytetrafluoro tetraene.Pass through bolt 9 fixing between described valve gap 3 and gland 7.Described valve rod 2 and flashboard frame 6 are adopted With threaded.

Claims (10)

1. a kind of double disc seal gate valve it is characterised in that: include valve body (1), valve element, valve rod (2), valve gap (3) and valve seat (4), described valve gap (3) is arranged on valve body (1) top, and it is internal empty that described valve rod (2) stretches into valve body (1) through valve gap (3) center Chamber it is characterised in that: described valve element includes left and right flashboard (5) and flashboard frame (6), and described valve rod (2) bottom connects flashboard frame (6), described left and right flashboard (5) is arranged on flashboard frame (6) both sides;It is internal that described valve seat (4) is arranged on valve body (1), and with left and right Flashboard (5) cooperates;Between described left and right flashboard (5) and valve seat (4), between valve gap (3) and valve body (1), valve gap (3) and valve Bar is provided with sealing mechanism between (2).
2. a kind of double disc seal gate valve according to claim 1 it is characterised in that: described left and right flashboard (5) upper and lower two Side all offers annular groove, is provided with ram seal circle (51) in described annular groove;Described valve seat (4) and ram seal circle (51) valve seat insert (41) is provided with correspondence position.
3. a kind of double disc seal gate valve according to claim 1 it is characterised in that: described valve body (1) upper inner is opened If annular groove, sealing gasket (10) is installed in described annular groove, between described valve gap (3) and valve body (1), passes through sealing gasket (10) seal.
4. a kind of double disc seal gate valve according to claim 1 it is characterised in that: described valve gap (3) top is provided with Gland (7), is provided with gland sealing mechanism (8), described gland sealing mechanism (8) and valve between described gland (7) and valve gap (3) Bar (2) forms and abuts sealing.
5. a kind of double disc seal gate valve according to claim 4 it is characterised in that: described gland sealing mechanism (8) bag Include sealing (81), intermediate seal and lower sealing (82), described intermediate seal be arranged at sealing (81) and lower sealing (82) it Between.
6. a kind of double disc seal gate valve according to claim 5 it is characterised in that: described intermediate seal includes near valve The inner seal ring (83) of bar (2) side and the exterior seal ring (84) near valve body (1) side.
7. a kind of double disc seal gate valve according to claim 5 it is characterised in that: described lower sealing (82) lower surface is Arc, and convex near valve rod (2) side.
8. a kind of double disc seal gate valve according to claim 4 it is characterised in that: described valve gap (3) and gland (7) it Between fixing by bolt (9).
9. a kind of double disc seal gate valve according to claim 1 it is characterised in that: described valve rod (2) and flashboard frame (6) Using threaded.
10. a kind of double disc seal gate valve according to claim 5 it is characterised in that: described upper sealing (81) is using gold Belong to material, intermediate seal adopts fluorubber material, lower sealing (82) adopts polytetrafluoro tetraene.
CN201620805900.8U 2016-07-28 2016-07-28 Double -gate board sealing gate valve Expired - Fee Related CN205896227U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620805900.8U CN205896227U (en) 2016-07-28 2016-07-28 Double -gate board sealing gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620805900.8U CN205896227U (en) 2016-07-28 2016-07-28 Double -gate board sealing gate valve

Publications (1)

Publication Number Publication Date
CN205896227U true CN205896227U (en) 2017-01-18

Family

ID=57786091

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620805900.8U Expired - Fee Related CN205896227U (en) 2016-07-28 2016-07-28 Double -gate board sealing gate valve

Country Status (1)

Country Link
CN (1) CN205896227U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109185488A (en) * 2018-11-13 2019-01-11 江苏圣泰阀门有限公司 A kind of high-pressure seal gate valve
CN112161072A (en) * 2020-09-24 2021-01-01 福建新达阀门有限公司 Ceramic core sealing flat valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109185488A (en) * 2018-11-13 2019-01-11 江苏圣泰阀门有限公司 A kind of high-pressure seal gate valve
CN109185488B (en) * 2018-11-13 2019-12-31 江苏圣泰阀门有限公司 High-pressure sealing gate valve
CN112161072A (en) * 2020-09-24 2021-01-01 福建新达阀门有限公司 Ceramic core sealing flat valve

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170118

Termination date: 20180728

CF01 Termination of patent right due to non-payment of annual fee