CN207999527U - A kind of flap anti-rotation, electrostatic prevention structure oxygen check valve - Google Patents
A kind of flap anti-rotation, electrostatic prevention structure oxygen check valve Download PDFInfo
- Publication number
- CN207999527U CN207999527U CN201820246965.2U CN201820246965U CN207999527U CN 207999527 U CN207999527 U CN 207999527U CN 201820246965 U CN201820246965 U CN 201820246965U CN 207999527 U CN207999527 U CN 207999527U
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- valve
- flap
- guide post
- prevention structure
- electrostatic prevention
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Abstract
The utility model discloses a kind of flap anti-rotation, electrostatic prevention structure oxygen check valves, including:Valve body, interior the first valve chamber having positioned at lower part of valve body and superposed second valve chamber, have valve seat between the first valve chamber and the second valve chamber;Valve deck is fixedly connected with the valve body, and bonnet lower surface is vertically fixed with guide post, and guide post is tubulose, and guide post inner wall vertically opens up guide groove;Flap is located in the second valve chamber, and flap is right against valve seat, and flap upper surface upwardly extends to form valve rod, and valve rod top is set in guide post;Anti-static spring is arranged in guide post, and anti-static spring lower end is butted on the upper end of valve rod, and the upper end of anti-static spring is butted on bonnet lower surface;One end of straight pin is fixedly connected with the side of valve rod, and the other end of straight pin is arranged in guide groove.The utility model plays the role of the anti-rotation of flap by the cooperation of straight pin and guide groove;By anti-static spring, the electrostatic that valve friction due to when opening, close generates can be conducted.
Description
Technical field
The utility model is related to the technical field of oxygen check valve more particularly to a kind of flap anti-rotation, electrostatic prevention structure oxygen
Gas check-valves.
Background technology
Currently, to prevent cold wind from flowing backwards in steel mill makes steel oxygen enrichment system horizontal pipeline, splashing in slag hearth prevents nitrogen, oxygen mutual
String, can all select lift check valve.The flap of common lift check valve, can be with the stream of gas due to the effect of turbulent flow
It moves and rotates, cause flap to rotate and rub between valve deck and generate electrostatic, to bring danger to entire pipeline, causing need not
The loss wanted.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of flap anti-rotation, electrostatic prevention structure oxygen check valves.
To achieve the goals above, the technical solution that the utility model is taken is:
A kind of flap anti-rotation, electrostatic prevention structure oxygen check valve, wherein including:Valve body, the valve body are interior under being located at
First valve chamber in portion and superposed second valve chamber have horizontally disposed valve between first valve chamber and the second valve chamber
Seat;Valve deck, the valve deck are fixedly connected with the valve body, and the lower surface of the valve deck is vertically fixed with guide post, described
Guide post is tubular structure, and the inner wall of the guide post vertically offers guide groove;Flap, the flap are located at described second
In valve chamber, the flap is right against the valve seat, and the upper surface of the flap upwardly extends to form valve rod, the top of the valve rod
It is set in the guide post;Anti-static spring, the anti-static spring is arranged in the guide post, under the anti-static spring
End is butted on the upper end of the valve rod, and the upper end of the anti-static spring is butted on the lower surface of the valve deck;Straight pin, the cylinder
One end of pin is fixedly connected with the side of the valve rod, and the other end of the straight pin is arranged in the guide groove.
Above-mentioned flap anti-rotation, electrostatic prevention structure oxygen check valve, wherein the upper surface of the flap is equipped with cushion pad,
The cushion pad is annular in shape, and the cushion pad is right against the lower end of the guide post.
Above-mentioned flap anti-rotation, electrostatic prevention structure oxygen check valve, wherein the side of the guide post under the valve deck
Reinforcing rib is equipped between surface.
Above-mentioned flap anti-rotation, electrostatic prevention structure oxygen check valve, wherein by double between the valve body and the valve deck
Header stud is fixedly connected with nut.
Above-mentioned flap anti-rotation, electrostatic prevention structure oxygen check valve, wherein be additionally provided between the valve body and the valve deck
Gasket.
Above-mentioned flap anti-rotation, electrostatic prevention structure oxygen check valve, wherein the side point of the straight pin and the valve rod
Weldering connection.
Above-mentioned flap anti-rotation, electrostatic prevention structure oxygen check valve, wherein the upper end of the valve deck is equipped with hanging ring.
Above-mentioned flap anti-rotation, electrostatic prevention structure oxygen check valve, wherein the flange excircle of the valve body is equipped with anti-quiet
Electric Sign Board.
As a result of above-mentioned technology, the good effect for being allowed to have compared with prior art is the utility model:
(1) the utility model installs an anti-static spring between guide post and flap, can conduct therebetween because opening
The electrostatic for rubbing and generating when opening, closing.
(2) the utility model is by the cooperation of guide groove and straight pin, prevent flap because turbulent flow cause rotation and valve deck it
Between generate electrostatic.
(3) flap of the utility model is equipped with cushion pad, because pressure is excessive when preventing valve opening, make flap with
Guide post collides and causes to damage.
Description of the drawings
Fig. 1 be the flap anti-rotation of the utility model, electrostatic prevention structure oxygen check valve sectional view.
Fig. 2 be the flap anti-rotation of the utility model, electrostatic prevention structure oxygen check valve Fig. 1 A at enlarged drawing.
Fig. 3 be the flap anti-rotation of the utility model, electrostatic prevention structure oxygen check valve Fig. 1 B-B enlarged drawings.
In attached drawing:1, valve body;11, valve seat;12, antistatic Sign Board;13, product nameplate;2, valve deck;21, guide post;22,
Reinforcing rib;23, hanging ring;3, flap;31, valve rod;4, anti-static spring;5, straight pin;6, cushion pad.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as the utility model
It limits.
Fig. 1 be the flap anti-rotation of the utility model, electrostatic prevention structure oxygen check valve sectional view, Fig. 2 is that this practicality is new
The flap anti-rotation of type, Fig. 1 of electrostatic prevention structure oxygen check valve A at enlarged drawing, Fig. 3 be the utility model flap anti-rotation,
The B-B enlarged drawings of Fig. 1 of electrostatic prevention structure oxygen check valve show a kind of flap anti-rotation of preferred embodiment, antistatic knot
Structure oxygen check valve, including:Valve body 1, interior the first valve chamber having positioned at lower part of valve body 1 and superposed second valve chamber, the
There is horizontally disposed valve seat 11 between one valve chamber and the second valve chamber.
In addition, as a kind of preferred embodiment, flap anti-rotation, electrostatic prevention structure oxygen check valve further include:Valve deck 2,
Valve deck 2 is fixedly connected with valve body 1, and the lower surface of valve deck 2 is vertically fixed with guide post 21, and guide post 21 is tubular structure, is led
The inner wall of column 21 vertically offers guide groove.
In addition, as a kind of preferred embodiment, flap anti-rotation, electrostatic prevention structure oxygen check valve further include:Flap 3,
Flap 3 is located in the second valve chamber, and flap 3 is right against valve seat 11, and the upper surface of flap 3 upwardly extends to form valve rod 31, valve rod 31
Top be set in guide post 21.
Further, as a kind of preferred embodiment, flap anti-rotation, electrostatic prevention structure oxygen check valve further include:It is anti-quiet
Electrical spring 4, anti-static spring 4 are arranged in guide post 21, and the lower end of anti-static spring 4 is butted on the upper end of valve rod 31, antistatic bullet
The upper end of spring 4 is butted on the lower surface of valve deck 2.The electrostatic between flap 3 and valve deck 2 is blocked by anti-static spring 4.
Further, as a kind of preferred embodiment, flap anti-rotation, electrostatic prevention structure oxygen check valve further include:Circle
One end of pin 5, straight pin 5 is fixedly connected with the side of valve rod 31, and the other end of straight pin 5 is arranged in guide groove.Pass through
The cooperation of guide groove and straight pin 5 enables the valve rod 31 of flap 3 to carry out moving for upper and lower directions along guide groove, limits simultaneously
Valve rod 31 and flap 3 circumferentially rotate, to prevent the rotation of valve rod 31 from forming electrostatic with the friction of guide post 21.
In addition, as a kind of preferred embodiment, the upper surface of flap 3 is equipped with cushion pad 6, and cushion pad 6 is annular in shape, buffering
Pad 6 is right against the lower end of guide post 21.Cushion pad 6 is used to play the cushioning effect between flap 3 and guide post 21.
The foregoing is merely the utility model preferred embodiment, be not intended to limit the utility model embodiment and
Protection domain.
The utility model also has on the basis of the above is implemented as follows mode:
In the further embodiment of the utility model, continuing with referring to shown in Fig. 1 to Fig. 3, side and the valve deck 2 of guide post 21
Lower surface between be equipped with reinforcing rib 22.
In the further embodiment of the utility model, flap 3 is preferably in dish, intersects shape by hemisphere and cylinder
At.
It is fixed and is connected by studs and nut in the further embodiment of the utility model, between valve body 1 and valve deck 2
It connects.
In the further embodiment of the utility model, gasket is additionally provided between valve body 1 and valve deck 2.
In the further embodiment of the utility model, straight pin 5 is connect with the side spot welding of valve rod 31.
In the further embodiment of the utility model, the upper end of valve deck 2 is equipped with hanging ring 23.
In the further embodiment of the utility model, two end edge flange excircles of valve body 1 are equipped with antistatic Sign Board 12,
Antistatic Sign Board 12 is bolted on valve body 1.
In the further embodiment of the utility model, product nameplate 13 is additionally provided on valve body 1.
Illustrate the application method of the utility model below:
Gas medium enters the first valve chamber through valve inlet, when the pressure of 3 lower section of flap is more than the pressure of 3 top of flap
When, gas medium pushes up valve opening valve 3, so that the valve rod 31 of flap 3 is increased along guide post 21, valve automatically turns on;Work as gas medium
When refluence, the pressure of 3 top of flap is more than the pressure of 3 lower section of flap, and flap 3 is pressed on by the dead weight of upper and lower pressure difference and flap 3
On valve seat 11, valve is automatically closed.
The foregoing is merely the utility model preferred embodiment, be not intended to limit the utility model embodiment and
Protection domain should can appreciate that all in the utility model specification and diagram to those skilled in the art
Hold made equivalent replacement and obviously change obtained scheme, the protection model of the utility model should all be included in
In enclosing.
Claims (8)
1. a kind of flap anti-rotation, electrostatic prevention structure oxygen check valve, which is characterized in that including:
Valve body, has the first valve chamber and superposed second valve chamber positioned at lower part in the valve body, first valve chamber and
There is horizontally disposed valve seat between second valve chamber;
Valve deck, the valve deck are fixedly connected with the valve body, and the lower surface of the valve deck is vertically fixed with guide post, described
Guide post is tubular structure, and the inner wall of the guide post vertically offers guide groove;
Flap, the flap are located in second valve chamber, and the flap is right against the valve seat, the upper end of the flap towards
On extend to form valve rod, the top of the valve rod is set in the guide post;
Anti-static spring, the anti-static spring are arranged in the guide post, and the lower end of the anti-static spring is butted on the valve
The upper end of bar, the upper end of the anti-static spring are butted on the lower surface of the valve deck;
Straight pin, one end of the straight pin are fixedly connected with the side of the valve rod, and the other end setting of the straight pin exists
In the guide groove.
2. flap anti-rotation according to claim 1, electrostatic prevention structure oxygen check valve, which is characterized in that the flap
Upper surface is equipped with cushion pad, and the cushion pad is annular in shape, and the cushion pad is right against the lower end of the guide post.
3. flap anti-rotation according to claim 1, electrostatic prevention structure oxygen check valve, which is characterized in that the guide post
Reinforcing rib is equipped between side and the lower surface of the valve deck.
4. flap anti-rotation according to claim 1, electrostatic prevention structure oxygen check valve, which is characterized in that the valve body and
It is fixedly connected with nut by studs between the valve deck.
5. flap anti-rotation according to claim 1, electrostatic prevention structure oxygen check valve, which is characterized in that the valve body and
It is additionally provided with gasket between the valve deck.
6. flap anti-rotation according to claim 1, electrostatic prevention structure oxygen check valve, which is characterized in that the straight pin
It is connect with the side spot welding of the valve rod.
7. flap anti-rotation according to claim 1, electrostatic prevention structure oxygen check valve, which is characterized in that the valve deck
Upper end is equipped with hanging ring.
8. flap anti-rotation according to claim 1, electrostatic prevention structure oxygen check valve, which is characterized in that the valve body
Flange excircle is equipped with antistatic Sign Board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820246965.2U CN207999527U (en) | 2018-02-11 | 2018-02-11 | A kind of flap anti-rotation, electrostatic prevention structure oxygen check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820246965.2U CN207999527U (en) | 2018-02-11 | 2018-02-11 | A kind of flap anti-rotation, electrostatic prevention structure oxygen check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207999527U true CN207999527U (en) | 2018-10-23 |
Family
ID=63838617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820246965.2U Active CN207999527U (en) | 2018-02-11 | 2018-02-11 | A kind of flap anti-rotation, electrostatic prevention structure oxygen check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207999527U (en) |
-
2018
- 2018-02-11 CN CN201820246965.2U patent/CN207999527U/en active Active
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