CN206409655U - A kind of buried gate valve of cast steel - Google Patents
A kind of buried gate valve of cast steel Download PDFInfo
- Publication number
- CN206409655U CN206409655U CN201720065060.0U CN201720065060U CN206409655U CN 206409655 U CN206409655 U CN 206409655U CN 201720065060 U CN201720065060 U CN 201720065060U CN 206409655 U CN206409655 U CN 206409655U
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- China
- Prior art keywords
- cast steel
- valve
- bonnet
- cast
- stud
- 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
Links
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 96
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 239000000945 filler Substances 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 8
- 230000000740 bleeding effect Effects 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Valve Housings (AREA)
Abstract
The utility model provides a kind of buried gate valve of cast steel, including cast steel valve body, cast steel bonnet, stud one, nut one, support, stud two, nut two, flexible disc, valve rod, drive device, gland, pressing plate, stud three, nut three, cast-steel valve body is located at the lower section of cast steel bonnet, cast steel valve body is connected by the cooperation between stud one and nut one with cast steel bonnet, support is located at the top of cast steel bonnet, support is connected by the cooperation between stud two and nut two with cast steel bonnet, the bottom of cast steel valve body is provided with valve seat, flexible disc is located in valve seat, flexible disc is wedge shaped and its bottom cross-sectional area is less than top cross-sectional area, heap is welded with metallic sealing section between flexible disc and valve seat, one end of valve rod is connected to drive device, the other end of valve rod sequentially passes through support, cast steel bonnet, it is located at the top of flexible disc after cast steel valve body and can moves up and down.The utility model fire protecting performance is stronger, and sealing property is preferable, it is not easy to fail.
Description
Technical field
The utility model is related to a kind of gate valve, more particularly to a kind of buried gate valve of cast steel.
Background technology
The cast steel valve industry of China, developing history is long, and enterprise is numerous, but up to the present compared with foreign countries go together,
China's also very long segment difference provides that chain is not concentrated, high-end cast steel valve research and development ability is low, cast-steel valve together away from, industry product
Door industry manufacturing technology and the low phenomenon of technological level still have.Because cast steel valve industry is in the national economic development,
Play very important effect, it is possible to which prediction is in following a very long time, high parameter and the various working conditions of adaptation
Cast steel valve market application foreground it is boundless.
Found through investigation, what be presently, there are on the market is the buried cast steel gate valve of low bore pound level, the big mouth of high pressure mostly
The buried cast steel gate valve in footpath relatively lacks, and can adapt to complex working condition requirement and can fireproof high pressure heavy caliber it is buried
Cast steel gate valve is then less.Conventional buried cast steel gate valve generally provides filler due to its own using disk spring
The filler pretightning force at position, adds the probability of gate valve failure, and fire line is not good, causes sealing property not ideal enough.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of buried gate valve of cast steel, and its fire protecting performance is stronger, sealing
Better performances, it is not easy to fail.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of buried gate valve of cast steel, including cast steel valve body, cast steel bonnet, stud one, nut one, support, stud two, nut
2nd, flexible disc, valve rod, drive device, gland, pressing plate, stud three, nut three,
The cast-steel valve body is located at the lower section of cast steel bonnet, and the cast steel valve body passes through matching somebody with somebody between stud one and nut one
Conjunction is connected with cast steel bonnet,
The support is located at the top of cast steel bonnet, and the support passes through the cooperation between stud two and nut two and cast steel
Bonnet is connected,
The bottom of the cast steel valve body is provided with valve seat, and the flexible disc is located in valve seat, and the flexible disc is wedge shaped
And its bottom cross-sectional area is less than top cross-sectional area, heap is welded with metallic sealing section between the flexible disc and valve seat,
One end of the valve rod is connected to drive device, and the other end of the valve rod sequentially passes through support, cast steel bonnet, casting
It is located at the top of flexible disc after steel valve body and can moves up and down,
It is provided between the madial wall at the valve stem tip and cast-steel valve caping end in filler, the filler and is provided with spacer ring, institute
State spacer ring, gland and pressing plate to be sheathed on the lateral wall of valve rod, the gland is pressed on the upper surface of filler, the pressing plate pressure
In the upper surface of gland, one end of the stud three is engaged with nut three, the other end of the stud three pass through after pressing plate with
Cast steel bonnet is connected.
Further, the utility model also includes dust cover, and the dust cover is arranged on support and covers support.
Further, inner ring spirotallic gasket is provided between cast steel valve body and cast steel bonnet described in the utility model.
Further, the utility model also includes disc spring retainer, disc spring, and the disc spring retainer is sheathed on stud three
On lateral wall and positioned between nut three and pressing plate, the disc spring is sheathed on the lateral wall of butterfly spring retainer.
Further, the utility model also include air bleeding valve, seamless steel pipe one, blowoff valve, seamless steel pipe two, fuel feeding valve,
Seamless steel pipe three, the air bleeding valve is connected to cast steel bonnet by seamless steel pipe one, and the blowoff valve is connected by seamless steel pipe two
The bottom of cast steel valve body is connected to, the fuel feeding valve is connected to valve rod, the seamless steel pipe one, seamless steel pipe by seamless steel pipe three
2nd, seamless steel pipe three is welded in support.
Further, upper seal support is additionally provided with the inwall of cast steel bonnet described in the utility model, the valve rod is provided with
Inverse sealing face, when valve rod rises to preset distance, the inverse sealing face on the valve rod can be brought into close contact with upper seal support.
Preferably, the material of metallic sealing section described in the utility model is stainless steel, carbon steel or hard alloy.
Preferably, drive device described in the utility model is gear-box, pneumatic actuator, YE or gas-liquid linked
Actuator.
Therefore, compared with prior art, the utility model has the advantages that：
1）The elastic compensating speciality of flexible disc can realize that flashboard is perfectly fitted with metallic sealing section, when flexible disc is worked as
When meeting with fire, metal hard-sealing is realized in metallic sealing section thermal expansion, is prevented effectively from the leakage of medium, and fire protecting performance is stronger, close
Sealing property preferably, and then substantially increases security performance of the gate valve in pipeline；The flexible disc of wedge shape substantially reduces gate valve
The torque of open and close so that operation is lighter, is opened and closed rapider；
2）Cast steel valve body, cast steel bonnet use integral structure, and the various pipelines connection that can be good at meeting client will
Ask；The production cost of enterprise can effectively be reduced using cast steel valve body and cast steel bonnet；Cast steel valve body, cast steel bonnet pass through stud one
It is connected with nut one so that product is easy to install, quick detachable, easy exchange；
3）Valve rod is dark bar structure design, and it moves in cast steel valve body, cast steel bonnet and support, can effectively kept away
From that to exposing to the weather, because dust storm is impacted threaded stem will not be caused to be destroyed, so as to ensure that the Seal Design at filler will
Ask；
4）Pressing plate, gland can give full play to the splendid sealing property of filler, and the pretension of stud three causes filler tight
Better seal is played in close extruding, finds nut three can be tightened up into i.e. resealable during tiny leakage in use, significantly
Reduce the probability of gate valve failure.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application,
Do not constitute to it is of the present utility model it is improper limit, in the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the enlarged drawing at B in Fig. 1；
Fig. 4 is the enlarged drawing at C in Fig. 1；
Fig. 5 is the structural representation of another angle of the utility model.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, herein signal of the present utility model
Property embodiment and explanation be used for explaining the utility model, but be not intended as limiting of the present utility model.
It is as shown in Figures 1 to 5 a kind of embodiment of the buried gate valve of cast steel described in the utility model, including cast steel valve body
1st, cast steel bonnet 2, stud 1, nut 1, support 13, stud 2 23, nut 2 24, flexible disc 8, valve rod 5, driving dress
Put, gland 10, pressing plate 9, stud 3 17, nut 3 18, cast steel valve body 1 is located at the lower section of cast steel bonnet 2, and cast steel valve body 1 passes through
Cooperation between stud 1 and nut 1 is connected with cast steel bonnet 2, and support 13 is located at the top of cast steel bonnet 2, support 13
It is connected by the cooperation between stud 2 23 and nut 2 24 with cast steel bonnet 2, the bottom of cast steel valve body 1 is provided with valve seat 7, bullet
Property flashboard 8 be located in valve seat 7, flexible disc 8 is wedge shaped and its bottom cross-sectional area is less than top cross-sectional area, flexible disc 8
Heap is welded with metallic sealing section 25 between valve seat 7, and one end of valve rod 5 is connected to drive device, and the other end of valve rod 5 is sequentially passed through
It is located at the top of flexible disc 8 after support 13, cast steel bonnet 2, cast steel valve body 1 and can moves up and down, the top of valve rod 5 and cast-steel valve
It is provided between the madial wall on the top of lid 2 in filler 11, filler 11 and is provided with spacer ring 12, spacer ring 12, gland 10 and pressing plate 9 is arranged
In on the lateral wall of valve rod 5, gland 10 is pressed on the upper surface of filler 11, and pressing plate 9 is pressed on the upper surface of gland 10, stud 3 17
One end is engaged with nut 3 18, and the other end of stud 3 17 is connected after passing through pressing plate 9 with cast steel bonnet 2.
Further, the present embodiment also includes dust cover 14, and dust cover 14 is arranged on support 13 and covers support 13.It is anti-
Dust hood 14 can be protected the part inside valve rod 5 and support 13, it is to avoid adverse circumstances are damaged to inner body, also
Filler can be convenient for changing.
Further, in the present embodiment, inner ring spirotallic gasket 15, inner ring are provided between cast steel valve body 1 and cast steel bonnet 2
The sealing property of spirotallic gasket 15 is more reliable, and use time is more permanent.
Further, the present embodiment also includes disc spring retainer 16, disc spring 19, and disc spring retainer 16 is sheathed on stud 3 17
Lateral wall on and positioned between nut 3 18 and pressing plate 9, disc spring 19 is sheathed on the lateral wall of butterfly spring retainer 16.So have
Beneficial to loosening of the gate valve under high temperature low-temperature condition produced by stud 3 17, nut 3 18 is avoided, reduce to filler position repeatedly
The number of times of pretension.
Preferably, the present embodiment also includes air bleeding valve 20, seamless steel pipe 1, blowoff valve 29, seamless steel pipe 2 27, oiling
Valve 21, seamless steel pipe 3 28, air bleeding valve 20 are connected to cast steel bonnet 2 by seamless steel pipe 1, and blowoff valve 29 passes through seamless steel
Pipe 2 27 is connected to the bottom of cast steel valve body 1, and fuel feeding valve 21 is connected to valve rod 5 by seamless steel pipe 3 28, seamless steel pipe 1,
Seamless steel pipe 2 27, seamless steel pipe 3 28 are welded in support.Air bleeding valve 20 is for being vented, blowoff valve 29 is used for blowdown, oiling
Valve 21, which is used to supplement, to be sealed, and is met buried gate valve requirement, guest operation can be facilitated to use.
Preferably, in the present embodiment, upper seal support 22 is additionally provided with the inwall of cast steel bonnet 2, valve rod 5 is provided with close
Front cover, when valve rod 5 rises to preset distance, the inverse sealing face on valve rod 5 can be brought into close contact with upper seal support 22.When elastic lock
Plate is in fully open position, and valve rod 5 rises to its inverse sealing face and is brought into close contact to form back seal with upper seal support 22 so that
Valve rod 5 up realizes two seals, and then improves reliability and sealing property.
Preferably, in the present embodiment, the material of metallic sealing section 25 is stainless steel, and carbon steel is also can select when actual use
Or hard alloy.Sealing surface can be processed using body during from stainless steel, the frequency of use of sealing surface can be improved during from carbon steel
And increase the service life of gate valve, during from hard alloy can specifically chosen STL, TCC, CCC etc., more resistant intensity is more preferable.
Preferably, in the present embodiment, drive device is gear-box, and pneumatic actuator, electricity are also can select when actual use
Dynamic actuator or gas-liquid linkage actuator.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (8)
1. a kind of buried gate valve of cast steel, it is characterised in that：Including cast steel valve body, cast steel bonnet, stud one, nut one, support, spiral shell
Post two, nut two, flexible disc, valve rod, drive device, gland, pressing plate, stud three, nut three,
The cast-steel valve body be located at cast steel bonnet lower section, the cast steel valve body by the cooperation between stud one and nut one with
Cast steel bonnet is connected,
The support is located at the top of cast steel bonnet, and the support passes through the cooperation between stud two and nut two and cast steel bonnet
It is connected,
The bottom of the cast steel valve body be provided with valve seat, the flexible disc be located at valve seat in, the flexible disc it is wedge shaped and its
Bottom cross-sectional area is less than top cross-sectional area, and heap is welded with metallic sealing section between the flexible disc and valve seat,
One end of the valve rod is connected to drive device, and the other end of the valve rod sequentially passes through support, cast steel bonnet, cast-steel valve
It is located at the top of flexible disc after body and can moves up and down,
Filler is provided between the madial wall at the valve stem tip and cast-steel valve caping end, spacer ring is provided with the filler, it is described every
Ring, gland and pressing plate are sheathed on the lateral wall of valve rod, and the gland is pressed on the upper surface of filler, and the pressing plate is pressed on pressure
The upper surface of set, one end of the stud three is engaged with nut three, the other end of the stud three pass through after pressing plate with cast steel
Bonnet is connected.
2. the buried gate valve of a kind of cast steel according to claim 1, it is characterised in that：Also include dust cover, the dust cover
It is arranged on support and covers support.
3. the buried gate valve of a kind of cast steel according to claim 2, it is characterised in that：The cast steel valve body and cast steel bonnet it
Between be provided with inner ring spirotallic gasket.
4. the buried gate valve of a kind of cast steel according to claim 2, it is characterised in that：Also include disc spring retainer, disc spring, institute
State disc spring retainer to be sheathed on the lateral wall of stud three and be located between nut three and pressing plate, the disc spring is sheathed on butterfly spring guarantor
Hold on the lateral wall of frame.
5. the buried gate valve of a kind of cast steel according to claim 2, it is characterised in that：Also include air bleeding valve, seamless steel pipe one,
Blowoff valve, seamless steel pipe two, fuel feeding valve, seamless steel pipe three, the air bleeding valve are connected to cast steel bonnet, institute by seamless steel pipe one
The bottom that blowoff valve is connected to cast steel valve body by seamless steel pipe two is stated, the fuel feeding valve is connected to valve by seamless steel pipe three
Bar, the seamless steel pipe one, seamless steel pipe two, seamless steel pipe three are welded in support.
6. the buried gate valve of a kind of cast steel according to claim 2, it is characterised in that：Also set on the inwall of the cast steel bonnet
There is upper seal support, the valve rod is provided with inverse sealing face, when valve rod rises to preset distance, the inverse sealing face on the valve rod
It can be brought into close contact with upper seal support.
7. the buried gate valve of a kind of cast steel according to claim 2, it is characterised in that：The material of the metallic sealing section is not
Become rusty steel, carbon steel or hard alloy.
8. the buried gate valve of a kind of cast steel according to claim 2, it is characterised in that：The drive device is gear-box, gas
Dynamic actuator, YE or gas-liquid linkage actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065060.0U CN206409655U (en) | 2017-01-19 | 2017-01-19 | A kind of buried gate valve of cast steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065060.0U CN206409655U (en) | 2017-01-19 | 2017-01-19 | A kind of buried gate valve of cast steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206409655U true CN206409655U (en) | 2017-08-15 |
Family
ID=59557009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720065060.0U Expired - Fee Related CN206409655U (en) | 2017-01-19 | 2017-01-19 | A kind of buried gate valve of cast steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206409655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591598A (en) * | 2018-05-03 | 2018-09-28 | 中山铁王流体控制设备有限公司 | Axle sealing structure in a kind of shut-off valve |
-
2017
- 2017-01-19 CN CN201720065060.0U patent/CN206409655U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591598A (en) * | 2018-05-03 | 2018-09-28 | 中山铁王流体控制设备有限公司 | Axle sealing structure in a kind of shut-off valve |
| CN108591598B (en) * | 2018-05-03 | 2024-04-26 | 中山铁王流体控制设备有限公司 | Sealing structure for middle shaft of stop valve |
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Legal Events
| 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: 20170815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |