CN203614767U - Corrugated pipe forged steel valve - Google Patents
Corrugated pipe forged steel valve Download PDFInfo
- Publication number
- CN203614767U CN203614767U CN201320876280.3U CN201320876280U CN203614767U CN 203614767 U CN203614767 U CN 203614767U CN 201320876280 U CN201320876280 U CN 201320876280U CN 203614767 U CN203614767 U CN 203614767U
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- CN
- China
- Prior art keywords
- valve
- bellows
- corrugated pipe
- forged steel
- valve rod
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- Expired - Fee Related
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Abstract
The utility model relates to a corrugated pipe forged steel valve. The corrugated pipe forged steel valve mainly solves the problems that the existing valve stem packing is poor in sealing property and medium is easy to permeate outward. The corrugated pipe forged steel valve is characterized in that a corrugated pipe (4) is arranged outside a valve stem (3); the corrugated pipe (4) has certain expansion amount; a supporting gasket (5) is welded with the upper end of the corrugated pipe (4); winding gaskets (15) are respectively arranged on two sides of the edge of the supporting gasket (5); the supporting gasket (5) is clamped between a valve body (1) and a valve cap (6); a gasket forming a whole body with the corrugated pipe (4) is arranged at the lower end of the corrugated pipe (4); a shaft shoulder (14) is arranged on the valve stem (3); the gasket (13) is clamped above the shaft shoulder (14) and welded with the periphery of the shaft shoulder (14). The corrugated pipe forged steel valve adopts structures of the corrugated pipe, the supporting gasket and the winding gaskets, has good sealing property, and realizes zero permeability.
Description
Technical field
The utility model relates to valve field, is specifically related to a kind of bellows forged steel valve.
Background technique
Valve kind on pipeline is a lot, wherein stop valve is a kind of conventional valve, for controlling the cut-out of various mobility media or the sizes of adjust flux such as air, water, steam, the open-shut device of stop valve is the flap of stopper, sealing surface is plane or the conical surface, and flap is in company with valve rod lifting moving linearly.Existing stop valve is mainly made up of valve body, valve gap, valve rod and flap, between valve gap and valve rod, be provided with stuffing box packing, for the sealing to medium, avoid medium to leak along stem exterior surface, because valve rod is in the process promoting, the relative stuffing box packing of valve rod is slided, and medium (particularly gas medium) will be to exosmosis between valve rod and stuffing box packing, poor sealing performance.
Model utility content
In order to overcome existing stem packing poor sealing performance, medium easily to the deficiency of exosmosis, the utility model provides a kind of bellows forged steel valve, this bellows forged steel valve adopts the structure of bellows, support pad and spirotallic gasket, has good sealability, reaches zero infiltration.
The technical solution of the utility model is: this bellows forged steel valve, comprise valve body, flap, valve rod and valve gap, flap is installed in valve body, described flap is connected with valve rod, valve rod is provided with bellows outward, and described bellows has certain extending amount, and described bellows upper end is welded with support pad, the both sides at support pad edge are respectively equipped with spirotallic gasket, and spirotallic gasket is clamped between valve body and valve gap; The lower end of bellows is provided with the pad with bellows one, and valve rod is provided with the shaft shoulder, and pad is stuck in shaft shoulder top and welds with shaft shoulder periphery.
Described spirotallic gasket is made up of 304 steel wires and graphite.
Between described valve gap and valve rod, be added with filler, described filler upper end is provided with filler pressing sleeve, and filler pressing sleeve top is provided with hold-down grid, and described hold-down grid is connected by swing bolt with valve gap.
The upper end of described valve gap is provided with the Stem Mut that can rotate, and Stem Mut matches with the screw rod on valve rod.
On described Stem Mut, handwheel is installed.
The utlity model has following beneficial effect: owing to taking technique scheme, bellows, support pad and spirotallic gasket are by medium and valve rod isolation, form static seal structure, spirotallic gasket is compressed by valve body and valve gap, can carry larger working medium pressure, effectively avoid medium along valve rod to exosmosis, there is good sealability, reached zero infiltration.
Accompanying drawing explanation
Accompanying drawing 1 is structure sectional view of the present utility model.
1-valve body in figure, 2-flap, 3-valve rod, 4-bellows, 5-support pad, 6-valve gap, 7-filler, 8-filler pressing sleeve, 9-hold-down grid, 10-swing bolt, 11-Stem Mut, 12-handwheel, 13-pad, the 14-shaft shoulder, 15-spirotallic gasket.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of bellows forged steel valve, comprise valve body 1, flap 2, valve rod 3 and valve gap 6, flap 2 is installed in valve body 1, and described flap 2 is connected with valve rod 3, and valve rod 3 overcoats have bellows 4, described bellows 4 has certain extending amount, described bellows 4 upper ends are welded with support pad 5, and the both sides at support pad 5 edges are respectively equipped with spirotallic gasket 15, and spirotallic gasket 15 is clamped between valve body 1 and valve gap 6; The lower end of bellows 4 is provided with the pad 13 with bellows 4 one, and valve rod 3 is provided with the shaft shoulder 14, and pad 13 is stuck in the shaft shoulder 14 tops and welds with the shaft shoulder 14 peripheries.Owing to taking technique scheme, the linkage structure of bellows 4 is to add man-hour more convenient, and has higher join strength and sealing preferably; Bellows 4, support pad 5 are isolated medium and valve rod 3 with spirotallic gasket 15, form static seal structure, spirotallic gasket 15 is compressed by valve body 1 and valve gap 6, can carry larger working medium pressure, effectively avoid medium along valve rod 3 to exosmosis, there is good sealability, reach zero infiltration.
Described spirotallic gasket 15 is made up of 304 steel wires and graphite.Spirotallic gasket 15 combines with 304 steel wires for soft seal body graphite, and spirotallic gasket 15 is not high to the contact surface required precision of valve body 1 and valve gap 6, and sealing fruit is better.
Between described valve gap 6 and valve rod 3, be added with filler 7, described filler 7 upper ends are provided with filler pressing sleeve 8, and filler pressing sleeve 8 tops are provided with hold-down grid 9, and described hold-down grid 9 is connected by swing bolt 10 with valve gap 6.Filler 7 forms second sealing, in the time that bellows 4 is damaged, can not cause medium to leak in a large number.
The upper end of described valve gap 6 is provided with the Stem Mut 11 that can rotate, and Stem Mut 11 matches with the screw rod on valve rod 3.Rotary valve rod nut 11 can make valve rod 3 rise or decline, and then opens or close flap 2.
On described Stem Mut 11, handwheel 12 is installed.The present embodiment adopts manually-operable, certainly can otherwise carry out actuate valve stem nut 11 and rotate, as electronic, pneumatic or hydraulic pressure etc.
The utility model is guaranteed that the sealing of valve rod 3 and filler 7 is in the overall process of its use and is realized zero leakage completely, prevented the loss of pipeline medium, and more importantly protected environment and personnel not to be subject to the injury of poisonous or Korrosionsmedium.In valve opening and closing overall process, particularly stop valve, valve rod 3 wherein is only done elevating movement, avoid rotary lifting movement, therefore, improved the dynamic environment of stuffing box, filler 7 wearing and tearing being alleviated, thereby extend the working life of valve, is enterprise and the remarkable benefit of social creativity.Avoid the sealing place leakage due to wearing and tearing, corrosion and the aging valve rod causing 3 and the filler 7 of filler 7; exempt regular increase or changed filler; be particularly suitable for the hazardous fluids medium piping such as inflammable, explosive and poisonous and to the more strict occasion of environmental protection; can reach the requirement of safe, anti-pollution and environmental protection, in the processing of radiological materials, also should serve as first-selection.
Claims (5)
1. a bellows forged steel valve, comprise valve body (1), flap (2), valve rod (3) and valve gap (6), flap (2) is installed in valve body (1), described flap (2) is connected with valve rod (3), it is characterized in that: the outer bellows (4) that is provided with of valve rod (3), described bellows (4) has certain extending amount, described bellows (4) upper end is welded with support pad (5), the both sides at support pad (5) edge are respectively equipped with spirotallic gasket (15), and spirotallic gasket (15) is clamped between valve body (1) and valve gap (6); The lower end of bellows (4) is provided with the pad (13) with bellows (4) one, valve rod (3) is provided with the shaft shoulder (14), and pad (13) is stuck in the shaft shoulder (14) top and welds with the shaft shoulder (14) periphery.
2. bellows forged steel valve according to claim 1, is characterized in that: described spirotallic gasket (15) is made up of 304 steel wires and graphite.
3. bellows forged steel valve according to claim 1 and 2, it is characterized in that: between described valve gap (6) and valve rod (3), be added with filler (7), described filler (7) upper end is provided with filler pressing sleeve (8), filler pressing sleeve (8) top is provided with hold-down grid (9), and described hold-down grid (9) is connected by swing bolt (10) with valve gap (6).
4. bellows forged steel valve according to claim 1 and 2, is characterized in that: the upper end of described valve gap (6) is provided with the Stem Mut (11) that can rotate, and Stem Mut (11) matches with the screw rod on valve rod (3).
5. bellows forged steel valve according to claim 4, is characterized in that: on described Stem Mut (11), handwheel (12) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320876280.3U CN203614767U (en) | 2013-12-27 | 2013-12-27 | Corrugated pipe forged steel valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320876280.3U CN203614767U (en) | 2013-12-27 | 2013-12-27 | Corrugated pipe forged steel valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614767U true CN203614767U (en) | 2014-05-28 |
Family
ID=50767416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320876280.3U Expired - Fee Related CN203614767U (en) | 2013-12-27 | 2013-12-27 | Corrugated pipe forged steel valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614767U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003655A (en) * | 2015-05-15 | 2015-10-28 | 扬中市阀门厂有限公司 | High-pressure connecting rod type bellows globe valve |
| WO2018053662A1 (en) * | 2016-09-22 | 2018-03-29 | 沈静静 | Supercritical small diameter corrugated pipe spherical sealing forged shut-off valve |
| CN108397592A (en) * | 2018-05-16 | 2018-08-14 | 华北水利水电大学 | Plug type bulkhgead gate |
| CN108506564A (en) * | 2018-05-30 | 2018-09-07 | 江苏明江阀业有限公司 | A kind of pneumatic cut-out bellows valve |
-
2013
- 2013-12-27 CN CN201320876280.3U patent/CN203614767U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003655A (en) * | 2015-05-15 | 2015-10-28 | 扬中市阀门厂有限公司 | High-pressure connecting rod type bellows globe valve |
| WO2018053662A1 (en) * | 2016-09-22 | 2018-03-29 | 沈静静 | Supercritical small diameter corrugated pipe spherical sealing forged shut-off valve |
| CN108397592A (en) * | 2018-05-16 | 2018-08-14 | 华北水利水电大学 | Plug type bulkhgead gate |
| CN108506564A (en) * | 2018-05-30 | 2018-09-07 | 江苏明江阀业有限公司 | A kind of pneumatic cut-out bellows valve |
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Legal Events
| 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: 20140528 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |