CN209325067U - Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve - Google Patents
Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve Download PDFInfo
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- CN209325067U CN209325067U CN201920045885.5U CN201920045885U CN209325067U CN 209325067 U CN209325067 U CN 209325067U CN 201920045885 U CN201920045885 U CN 201920045885U CN 209325067 U CN209325067 U CN 209325067U
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- valve
- valve rod
- boss
- lead screw
- flap
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Abstract
Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve, is related to the design production technical field of valve.Valve seat is equipped in valve body, flap is equipped on valve seat, valve rod is arranged in the upper end disjunctor of flap, valve rod stretches out valve deck, and movable sealing structure is set between valve rod and valve deck, transmission nut is set on valve deck, is equipped with drive lead screw in the transmission nut, connects handwheel in one end of drive lead screw；Guide pad for connecting drive lead screw and valve rod is set between the end of the valve rod of the other end and stretching valve deck of drive lead screw.Drive lead screw and valve rod split settings are attached by guide pad by the utility model between the two, and in floating type, valve rod is only moved up and down, and does not make rotating motion, to make valve clack sealing surface and valve body sealing surface without adhesive wear, good seal performance for this connection；Meanwhile abrasion is also reduced between valve rod and filler, it ensure that medium leaks outside not from valve rod.
Description
Technical field
The utility model relates to the design production technical fields of valve.
Background technique
Currently, for chlorine, chlorine water, hydrogen chloride, refined brine, high purity hydrochloric acid, sulfuric acid, phosphoric acid, hydrogen fluorine in chemical industry
The valve that the strong corrosives such as acid, chloroazotic acid, lye, strong oxidizing property medium pipeline control media flow is general common lining cut-off
Valve, due to no matter not having the characteristics of special service valve in selection or on valve mechanism, the performance of this valve of one side is not
Stablize, sealing effect is bad, and sealing surface easily weighs wounded, it is easy to leak；On the other hand in the poisonous and hazardous process conditions of burn into
Under, corrosion resistance is poor, easily leaks outside, and the easy bulge of backing layer falls off, and backing layer damages rear valve body, the perishable eating thrown of valve deck matrix
The damage in hole, backing layer is short so as to cause valve whole service life, is not able to satisfy the special of permanently effective pumped (conveying) medium and wants
It asks, and poisonous medium is once a leak occurs, very big harm can be brought to surrounding enviroment and personal safety.
Utility model content
The utility model aim is to propose a kind of particle-resistant with resistance to strong rotten performance that can overcome prior art defect
Fluoroplastic all-liner shut-off valve.
The utility model includes the valve body for being equipped with import and export, the valve deck being connected on valve body, and valve seat is equipped in valve body,
Flap is equipped on valve seat, valve rod is arranged in the upper end disjunctor of the flap, and valve rod stretches out valve deck, and between valve rod and valve deck
Movable sealing structure is set, transmission nut is set on valve deck, drive lead screw is equipped in the transmission nut, in driving wire
One end of bar connects handwheel；Setting will be for that will pass between the end of the valve rod of the other end and stretching valve deck of the drive lead screw
The guide pad that dynamic screw rod and valve rod connect.
Drive lead screw and valve rod split settings are attached by guide pad by the utility model between the two, this company
It is in floating type for connecing, and valve rod only moves up and down, and is not made rotating motion, so that valve clack sealing surface and valve body sealing surface be made to grind without adhesion
Damage, good seal performance；Meanwhile abrasion is also reduced between valve rod and filler, it ensure that medium leaks outside not from valve rod.
Be in floating type connecting structure specifically: the drive lead screw end far from handwheel along drive lead screw it is axial according to
The first recessed neck of secondary setting and first boss, far from flap valve stem end along the axial direction of valve rod set gradually the second recessed neck and
Second boss, the first boss and second boss are positioned opposite, and the guide pad is coated on the first recessed neck, first boss,
Outside two recessed necks and second boss, it is arranged in the guide pad inner surface convex with the first recessed neck, first boss, the second recessed neck and second
The concave-convex curved surface of platform fit on.Two boss clamp the transmission mechanism to form a floating connection by two panels guide pad, can
By guaranteeing that valve opening and closing is light, drive lead screw torque is small, and axially closes valve pressure in place, so that sealing performance is stablized, peace
It is complete reliable.
Arrange that neck bush, the neck bush are connected by the dovetail groove that valve interior surface is arranged in be set forth in valve body.
Arrange that external bushing, the external bushing pass through flap and the respectively arranged dovetail of stem exterior surface outside flap and valve rod
Slot is connected.
Bonnet bush, the dovetail groove that the bonnet bush is arranged by valve deck inner surface are arranged outside the valve deck towards valve body
It is connected.
The utility model enables each bushing be connected on corresponding metal casting well using dovetail groove, is using
It is not easy to fall off in journey, all flow passage components are effectively formed to the protective layer of resistance to strong corruption, it is ensured that corrosive media and part base solid
It is completely separated, do not corroded.The sealing surface anti-corrosion, No leakage that valve connect with pipeline are also ensured simultaneously, securely and reliably.
In addition, through-hole, the axis of through-hole are arranged on flap in order to reinforce the connectivity robustness of the external bushing of flap and flap
To axial parallel with valve rod, the hole neck bush of setting and outer lining cover conjoined in through-hole.
In order to improve flap upper surface and valve deck sealing cooperate, the external bushing surface of the flap towards valve deck be with
Inside and outside two annular convex platform of the axial arranged concentric of valve rod, the height of outer ring boss are higher than the height of annular boss.This
When setting is just come into operation, sealing cooperation is formed with outer ring boss and valve deck, with the extension of the time used, outer ring is convex
Platform can be worn, and hereafter then be formed with sealing from annular boss and valve deck.In addition, using inside and outside two annular convex platform pair
The sealing that valve deck is realized can reduce the area in sealing contact of flap and valve deck, and conducive to the power reduced when closing valve, it is strong to mitigate manpower
Degree.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
Fig. 2 is the portion the A enlarged drawing of Fig. 1.
Fig. 3 is the portion the B enlarged drawing of Fig. 1.
Fig. 4 is the portion the C enlarged drawing of Fig. 1.
Specific embodiment
As shown in Figure 1,2,3, 4, valve body 1 is provided with inlet and outlet, and valve deck 3 is bolted on valve body 1, in valve
It is equipped with valve seat in body 1, flap 2 is equipped on valve seat.Arrange that neck bush 11, neck bush 11 pass through table in valve body 1 in valve body 1
Several dovetail grooves 1-1 of face setting is connected with each other.
Valve rod 12 is arranged in the upper end disjunctor of flap 2, and valve rod 12 stretches out the mesoporous of valve deck 3, and sets between valve rod 12 and valve deck 3
Set movable sealing structure.The movable sealing structure is by being arranged in the V-type filler 4 of 3 mesoporous of valve deck and being bolted in V-type filler
The gland 5 of 4 tops forms.
Bonnet bush 13 is arranged outside the valve deck 3 towards valve body 1, if what bonnet bush 13 was arranged by 3 inner surface of valve deck
Dry dovetail groove is connected with each other.
Arrange that external bushing 14, external bushing 14 are respectively set by flap 2 and 12 outer surface of valve rod outside flap 2 and valve rod 12
Several dovetail grooves be connected with each other.The axial direction of four setting through-holes 2-1, each through-hole 2-1 and the axial direction of valve rod 12 are flat on flap 2
The hole neck bush with 14 disjunctor of external bushing is arranged in row in each through-hole.
The width of rebate of above each dovetail groove is less than slot bottom width, equal lining perfluoroethylene third in these described surfaces and slot
Alkene, polytetrafluoroethylene (PTFE) etc. are able to bear strong corrosion fluoroplastics.
It is with two rings inside and outside the axial arranged concentric of valve rod 12 on 14 surface of external bushing of the flap 2 towards valve deck 3
Shape boss 14-1 and 14-2, the height of outer ring boss 14-2 are higher than the height of annular boss 14-1.
Transmission nut 8 is fixedly installed by a connecting seat 15 on valve deck 3, is equipped with driving wire in transmission nut 8
Bar 7 connects handwheel 10 in the upper end of drive lead screw 7.Between 7 lower end of drive lead screw and the upper end for the valve rod 12 for stretching out valve deck 3
The guide pad 6 being made of two pieces of Houghs for connecting drive lead screw 7 and valve rod 12 is set.
Specifically: setting gradually the first recessed neck along the axial direction of drive lead screw 7 in 7 end of drive lead screw far from handwheel 10
7-1 and first boss 7-2 sets gradually the second recessed neck 12-1 along the axial direction of valve rod 12 in 12 end of valve rod far from flap 2
With second boss 12-2.First boss 7-2 and second boss 12-2 are positioned opposite, and the guide pad 6 being made of two pieces of Houghs coats
Outside the first recessed neck 7-1, first boss 7-2, the second recessed neck 12-1 and second boss 12-2,6 inner surface of guide pad setting with
The concave-convex curved surface of first recessed neck 7-1, first boss 7-2, the second recessed neck 12-1 and second boss 12-2 cooperation, between two pieces of Houghs
It is connected by two pairs of bolts nut 6-1.
Claims (7)
1. resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve, including being equipped with the valve body of import and export, the valve deck being connected on valve body,
It is equipped with valve seat in valve body, flap is equipped on valve seat, valve rod is arranged in the upper end disjunctor of the flap, and valve rod stretches out valve
Lid, and movable sealing structure is set between valve rod and valve deck, transmission nut is set on valve deck, cooperates in the transmission nut and sets
Drive lead screw is set, connects handwheel in one end of drive lead screw；It is characterized in that in the other end and stretching valve of the drive lead screw
Guide pad for connecting drive lead screw and valve rod is set between the end of the valve rod of lid.
2. resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve according to claim 1, it is characterised in that in the biography far from handwheel
Dynamic screw rod end sets gradually the first recessed neck and first boss along the axial direction of drive lead screw, on the valve stem end edge far from flap
The axial direction of valve rod set gradually the second recessed neck and second boss, the first boss and second boss are positioned opposite, described to lead
It is coated on outside the first recessed neck, first boss, the second recessed neck and second boss to block, in guide pad inner surface setting and first
Recessed neck, first boss, the second recessed neck and second boss fit on concave-convex curved surface.
3. resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve according to claim 1 or claim 2, it is characterised in that in be set forth in valve body
Interior arrangement neck bush, the neck bush are connected by the dovetail groove that valve interior surface is arranged.
4. resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve according to claim 1 or claim 2, it is characterised in that in flap and valve rod
Outer arrangement external bushing, the external bushing are connected by flap with the respectively arranged dovetail groove of stem exterior surface.
5. resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve according to claim 4, it is characterised in that be arranged on flap logical
Hole, the axial direction of through-hole is axial parallel with valve rod, and the hole neck bush with outer lining cover conjoined is arranged in through-hole.
6. resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve according to claim 4, it is characterised in that in the valve towards valve deck
The external bushing surface of valve is with two annular convex platform inside and outside the axial arranged concentric of valve rod, and the height of outer ring boss is higher than interior
The height of annular convex platform.
7. resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve according to claim 1 or claim 2, it is characterised in that towards valve body
Arrange that bonnet bush, the bonnet bush are connected by the dovetail groove that valve deck inner surface is arranged outside valve deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920045885.5U CN209325067U (en) | 2019-01-11 | 2019-01-11 | Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920045885.5U CN209325067U (en) | 2019-01-11 | 2019-01-11 | Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209325067U true CN209325067U (en) | 2019-08-30 |
Family
ID=67731100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920045885.5U Active CN209325067U (en) | 2019-01-11 | 2019-01-11 | Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209325067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538775A (en) * | 2019-01-11 | 2019-03-29 | 江苏金晟元特种阀门股份有限公司 | Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve |
-
2019
- 2019-01-11 CN CN201920045885.5U patent/CN209325067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538775A (en) * | 2019-01-11 | 2019-03-29 | 江苏金晟元特种阀门股份有限公司 | Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve |
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