CN206846018U - Automatic ventilation valve - Google Patents
Automatic ventilation valve Download PDFInfo
- Publication number
- CN206846018U CN206846018U CN201720468656.5U CN201720468656U CN206846018U CN 206846018 U CN206846018 U CN 206846018U CN 201720468656 U CN201720468656 U CN 201720468656U CN 206846018 U CN206846018 U CN 206846018U
- Authority
- CN
- China
- Prior art keywords
- bonnet
- top plate
- valve
- annular
- rubber layer
- 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.)
- Active
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 10
- 238000003466 welding Methods 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
Automatic ventilation valve is related to a kind of apply and the balanced device of pressure is ensured on storage tank steel floating plate.Mainly solve the problems, such as existing automatic ventilation valve sealing effectiveness difference and design.It includes valve rod, and valve rod passes through out of valve cylinder body, has bonnet top plate at the top of bonnet cylinder, the screw rod of valve stem top stretches out from the screw hole of bonnet ceiling center, has rubber sheet gasket and nut on screw rod extension；The lower surface of bonnet top plate sets dividing plate, oil resistant rubber layer is set between dividing plate and bonnet cylinder, froth bed is set between oil resistant rubber layer and bonnet top plate, oil resistant rubber layer bottom sets metal trim ring, metal trim ring, oil resistant rubber layer and froth bed are all connected by bolt with bonnet top plate, there is the copper coin of annular in dividing plate, the copper coin of annular is fixed on bonnet top plate, electrostatic conductor is connected between bonnet top plate and screw rod, electrostatic conductor is connected between bonnet cylinder and valve cylinder body, electrostatic conductor is connected between valve rod and bonnet top plate.Advantage is good sealing effect.
Description
Technical field：
It the utility model is related to one kind to apply on storage tank steel floating plate, gas stream provided when pressure differential is formed above and below floating roof
Logical passage, ensure the balanced device of pressure.
Background technology：
The bonnet and valve rod for the automatic ventilation valve applied on existing storage tank steel floating plate weld together, and easily cause valve during welding
Lid deformation, prevents valve cylinder body with bonnet from completely attaching to, i.e., the sealing surface contact between them is not tight, and sealing effectiveness is poor.In addition
Asbestos packing sheet is provided with the lower surface of bonnet, asbestos packing sheet contacts firmly with valve cylinder top, contacts imprecision.
The content of the invention：
Technical problem to be solved in the utility model, which is to provide one kind, can avoid bonnet from being deformed with valve rod because of welding,
So as to ensure the automatic ventilation valve of sealing effectiveness between valve cylinder body and bonnet.
What above-mentioned purpose was realized in：It includes valve rod, and valve rod passes through out of valve cylinder body, and valve cylinder body is fixed on floating plate
On, in addition to bonnet cylinder, bonnet top plate is fixed with the top of bonnet cylinder, it is characterized in that：Screw hole is set in bonnet ceiling center,
Screw rod is set in valve stem top, screw rod stretches out from the screw hole of bonnet ceiling center, and screw rod extension is provided with rubber sheet gasket,
Screw rod above rubber sheet gasket is provided with nut；Set in the lower surface of bonnet top plate annular dividing plate, the toroidal membrane it is straight
Footpath is less than the diameter of valve cylinder body, and the oil resistant rubber layer of annular is set between dividing plate and bonnet cylinder, in the oil resistant rubber layer of annular
Froth bed is set between the lower surface of bonnet top plate, metal trim ring, described metal pressure are set in the oil resistant rubber layer bottom of annular
Circle, oil resistant rubber layer and froth bed are all connected by bolt and bonnet top plate, and the copper coin of annular is provided with annular dividing plate,
The annular copper coin is fixed on bonnet top plate, and electrostatic conductor, bonnet cylinder and valve are connected between bonnet top plate and screw rod
Electrostatic conductor is connected between cylinder, electrostatic conductor is connected between valve rod and bonnet top plate.
The utility model has the advantages that：Because valve rod is connected with bonnet top plate by screw rod, thus can avoid because of welding and
Caused by bonnet deform, the sealing surface between valve cylinder body and bonnet contacts closely.Due to setting foam on bonnet top plate lower surface
Layer and oil resistant rubber layer, when valve cylinder body contacts with froth bed and oil resistant rubber layer be it is soft contact, contact closely, so as to ensure that
Sealing effectiveness.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model.
Embodiment：
Reference picture 1, it includes valve rod 1, and valve rod is passed through out of valve cylinder body 2, and valve cylinder body is fixed on floating plate, in addition to bonnet
Cylinder 3, bonnet cylinder top are fixed with bonnet top plate 4, it is characterized in that：Screw hole is set in bonnet ceiling center, in valve stem top
If screw rod 5, screw rod stretches out from the screw hole of bonnet ceiling center, and screw rod extension is provided with rubber sheet gasket 6, rubber sheet gasket
The screw rod of top is provided with nut 7；The dividing plate 8 of annular is set in the lower surface of bonnet top plate, the diameter of the toroidal membrane is less than
The diameter of valve cylinder body, the oil resistant rubber layer 9 of annular is set between dividing plate and bonnet cylinder, in the oil resistant rubber layer and bonnet of annular
Froth bed 10 is set between the lower surface of top plate, metal trim ring 11 is set in the oil resistant rubber layer bottom of annular, described metal trim ring,
Oil resistant rubber layer and froth bed are all connected by bolt 12 and bonnet top plate, and the copper coin of annular is provided with annular dividing plate
13, the annular copper coin is fixed on bonnet top plate, and electrostatic conductor 14, bonnet cylinder are connected between bonnet top plate and screw rod
Electrostatic conductor is connected between valve cylinder body, electrostatic conductor is connected between valve rod and bonnet top plate.
Claims (1)
1. automatic ventilation valve, including valve rod（1）, valve rod is from valve cylinder body（2）Inside passing through, valve cylinder body is fixed on floating plate, in addition to
Bonnet cylinder（3）, bonnet cylinder top is fixed with bonnet top plate（4）, it is characterized in that：Screw hole is set in bonnet ceiling center,
Valve stem top sets screw rod（5）, screw rod stretches out from the screw hole of bonnet ceiling center, and screw rod extension is provided with rubber sheet gasket
（6）, the screw rod above rubber sheet gasket is provided with nut（7）；The dividing plate of annular is set in the lower surface of bonnet top plate（8）, the ring
The diameter of shape dividing plate is less than the diameter of valve cylinder body, and the oil resistant rubber layer of annular is set between dividing plate and bonnet cylinder（9）, in annular
Oil resistant rubber layer and bonnet top plate lower surface between set froth bed（10）, metal pressure is set in the oil resistant rubber layer bottom of annular
Circle（11）, described metal trim ring, oil resistant rubber layer and froth bed all pass through bolt（12）It is connected with bonnet top plate, annular
Dividing plate in be provided with annular copper coin（13）, the annular copper coin is fixed on bonnet top plate, between bonnet top plate and screw rod
It is connected with electrostatic conductor（14）, electrostatic conductor is connected between bonnet cylinder and valve cylinder body, is connected between valve rod and bonnet top plate
There is electrostatic conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720468656.5U CN206846018U (en) | 2017-05-01 | 2017-05-01 | Automatic ventilation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720468656.5U CN206846018U (en) | 2017-05-01 | 2017-05-01 | Automatic ventilation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206846018U true CN206846018U (en) | 2018-01-05 |
Family
ID=60794609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720468656.5U Active CN206846018U (en) | 2017-05-01 | 2017-05-01 | Automatic ventilation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206846018U (en) |
-
2017
- 2017-05-01 CN CN201720468656.5U patent/CN206846018U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210902 Address after: 111000 No. 152, Tiexi Road, Taizihe District, Liaoyang City, Liaoning Province Patentee after: Liaoyang Petrochemical Equipment Co.,Ltd. Address before: 111000 Liaoyang Petrochemical Equipment Co., Ltd., No. 152 west iron road, Baita District, Liaoning, Liaoyang Patentee before: Sun Baoxiang |