CN204592317U - A kind of detachable chlor-alkali special valve with leakage preventer - Google Patents
A kind of detachable chlor-alkali special valve with leakage preventer Download PDFInfo
- Publication number
- CN204592317U CN204592317U CN201520298467.9U CN201520298467U CN204592317U CN 204592317 U CN204592317 U CN 204592317U CN 201520298467 U CN201520298467 U CN 201520298467U CN 204592317 U CN204592317 U CN 204592317U
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- China
- Prior art keywords
- valve
- bonnet
- leakage preventer
- bellows
- chlor
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Abstract
The utility model discloses a kind of detachable chlor-alkali special valve with leakage preventer, its technological scheme is: it comprises special valve body, leakage preventer, control gear, special valve body comprises flap, valve seat, valve body, valve body is fixedly connected with leakage preventer, control gear comprises valve rod, leakage preventer comprises the gland, bonnet, bottom flange, the bellows that run through successively through valve rod, upper and lower valve gap is fixedly connected with, gland is positioned at bonnet upper end, is provided with stuffing box packing in the filler cavity that gland, bonnet, valve rod surround; The upper end of bellows is fixed by upper and lower valve gap, and the lower end of bellows is fixedly connected with the flange be fixedly connected on valve rod.Welded flange on valve rod in the utility model, can be convenient to shaping again, and the lower end of bellows is welded on flange, and valve rod is not yielding; The upper end of bellows is fixed by upper and lower valve gap, breaks welded structure in the past, quick detachable between component, convenient cleaning, inspection, maintenance.
Description
Technical field
The utility model relates to modulating valve, cut-off valve technical field, particularly relates to a kind of detachable chlor-alkali special valve with leakage preventer.
Background technique
At present, chlor-alkali special valve is the parts of poisonous, the harmful and strong corrosive medium flowing of indispensable control in chemical industry alkali chemical industry enterprises chemical industry equipment and pipeline.In recent years, chemical industry for making chlorine and alkali development is swift and violent, and existing chlor-alkali valve can not meet the demand that chemical industry upgrades fast.In prior art, the valve gap of chlor-alkali special valve is generally integral solder, can not dismantle, clear up, and individual parts has been broken and has also been inconvenient to change; Bellows upper end in leakage preventer is all generally be welded on bottom flange, and lower end is directly welded on valve rod, very easily causes valve rod to be out of shape, and causes poisonous and harmful substances to leak.
Summary of the invention
In order to solve above-mentioned prior art Problems existing, the utility model provides that a kind of compact structure is reasonable, sealability is stable, cleaning is safeguarded and changed convenient, easy-off chlor-alkali special valve.
To achieve these goals, new solution of the present utility model is achieved in that a kind of detachable chlor-alkali special valve with leakage preventer, it comprises special valve body, leakage preventer, control gear, described special valve body comprises flap 11, valve seat 12, valve body 13, described valve body 13 is fixedly connected with described leakage preventer, described control gear comprises valve rod 1, described valve rod 1 is fixedly connected with described flap 11, described leakage preventer comprises Gland 2, bonnet 5, bottom flange 7, bellows 8, described valve rod 1 runs through described Gland 2 successively, bonnet 5, bottom flange 7, bellows 8, described bonnet 5 is fixedly connected with bottom flange 7, described Gland 2 is positioned at described bonnet 5 upper end, described Gland 2, bonnet 5, valve rod surrounds filler cavity, stuffing box packing 4 is provided with in described filler cavity, the upper end of described bellows 8 is fixed by described bonnet 5 and bottom flange 7, and the lower end of described bellows 8 is fixedly connected with the flange 9 be fixedly connected on described valve rod 1.
Further, described gland 2 inwall is provided with dust ring groove, is provided with dust ring 3 in described dust ring groove.
Further, be provided with guide pad 10 in described special valve body, described flap 11 slides along described guide pad 10 inner chamber.
Further, described bonnet 5 is fixedly connected with by bolt 14 with bottom flange 7.
Further, the surface of contact of the upper end of described bellows 8 and described bonnet 5, bottom flange 7 is equipped with seal washer 6.
Further, described flap 11 is for cutting off flap.
Further, described flap 11 is for regulating flap.
The utility model has following beneficial effect: in the utility model, valve gland inner ring embeds dust ring, efficiently solves extraneous dirt and enters filler thus the problem of wearing and tearing valve rod, filler; The design of welded flange on valve rod, can be convenient to valve rod shaping again, and like this, the lower end of bellows is connected with valve rod by being welded on flange, and valve rod is not yielding; Valve gap adopts the design of upper and lower valve gap, and upper and lower valve gap compresses and fixed the upper end of bellows, breaks welded structure in the past, quick detachable between component, conveniently cleans, checks, keeps in repair, changes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged view of leakage preventer in the utility model.
With reference to accompanying drawing 1,2 description of symbols: valve rod 1, Gland 2, dust ring 3, stuffing box packing 4, bonnet 5, seal washer 6, bottom flange 7, bellows 8, flange 9, guide pad 10, flap 11, valve seat 12, valve body 13, bolt 14.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in more detail.
A kind of detachable chlor-alkali special valve with leakage preventer of the utility model, it comprises special valve body, leakage preventer, control gear, described special valve body comprises flap 11, valve seat 12, valve body 13, described valve body 13 is fixedly connected with described leakage preventer, described control gear comprises valve rod 1, and described valve rod 1 is fixedly connected with described flap 11, guide pad 10 is also provided with in described special valve body, described flap 11 slides along described guide pad 10 inner chamber, described leakage preventer comprises Gland 2, bonnet 5, bottom flange 7, bellows 8, described gland 2 inwall is provided with dust ring groove, dust ring 3 is provided with in described dust ring groove, described valve rod 1 runs through described Gland 2 successively, bonnet 5, bottom flange 7, bellows 8, described bonnet 5 is fixedly connected with by bolt 14 with bottom flange 7, described Gland 2 is positioned at described bonnet 5 upper end, described Gland 2, bonnet 5, valve rod surrounds filler cavity, stuffing box packing 4 is provided with in described filler cavity, the upper end of described bellows 8 is fixed by described bonnet 5 and bottom flange 7, the surface of contact of the upper end of described bellows 8 and described bonnet 5, bottom flange 7 is equipped with seal washer 6, and the lower end of described bellows 8 is fixedly connected with the flange 9 be fixedly connected on described valve rod 1.
The utility model is applicable to chlor-alkali dedicated regulation valve or cut-off valve, prevents poisonous and harmful substances from leaking have remarkable result to effect.Wherein, described gland 2 inner ring embeds dust ring, efficiently solves extraneous dirt and enters filler thus the problem of wearing and tearing valve rod, filler; Described bottom flange 7 adopts corrugated tube sealing structure, thoroughly can eliminate processing medium from stem movement gap to the possibility of external leakage, and due to the deformability of described bellows 8 element own and distinguished ageing resistance, the weakness of the aging and temperature difference sensitivity of chlor-alkali special valve can be made to overcome completely filler that packing sealing valve exists usually; Described bonnet 5 adopts packing seal structure, and whole valve adopts double seal, and safety reliability is better; The design of welded flange on described valve rod 1, can be convenient to the shaping again of described valve rod 1, and like this, the lower end of described bellows 8 is connected with described valve rod 1 by being welded on described flange 9, and valve rod 1 is not yielding; Valve gap adopts the design of upper and lower valve gap, and upper and lower valve gap compresses and fixed the upper end of bellows, breaks welded structure in the past, makes between component quick detachable, conveniently cleans, checks, keeps in repair, changes.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, other amendments that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. the detachable chlor-alkali special valve with leakage preventer, it comprises special valve body, leakage preventer, control gear, described special valve body comprises flap (11), valve seat (12), valve body (13), described valve body (13) is fixedly connected with described leakage preventer, described control gear comprises valve rod (1), described valve rod (1) is fixedly connected with described flap (11), it is characterized in that, described leakage preventer comprises Gland (2), bonnet (5), bottom flange (7), bellows (8), described valve rod (1) runs through described Gland (2) successively, bonnet (5), bottom flange (7), bellows (8), described bonnet (5) is fixedly connected with bottom flange (7), described Gland (2) is positioned at described bonnet (5) upper end, described Gland (2), bonnet (5), valve rod surrounds filler cavity, stuffing box packing (4) is provided with in described filler cavity, the upper end of described bellows (8) is fixed by described bonnet (5) and bottom flange (7), and the lower end of described bellows (8) is fixedly connected with the flange (9) be fixedly connected on described valve rod (1).
2. a kind of detachable chlor-alkali special valve with leakage preventer according to claim 1, it is characterized in that, described Gland (2) inwall is provided with dust ring groove, is provided with dust ring (3) in described dust ring groove.
3. a kind of detachable chlor-alkali special valve with leakage preventer according to claim 1, it is characterized in that, be provided with guide pad (10) in described special valve body, described flap (11) slides along described guide pad (10) inner chamber.
4. a kind of detachable chlor-alkali special valve with leakage preventer according to claim 1, it is characterized in that, described bonnet (5) is fixedly connected with by bolt (14) with bottom flange (7).
5. a kind of detachable chlor-alkali special valve with leakage preventer according to claim 1, is characterized in that, the surface of contact of the upper end of described bellows (8) and described bonnet (5), bottom flange (7) is equipped with seal washer (6).
6. a kind of detachable chlor-alkali special valve with leakage preventer according to claim 1, is characterized in that, described flap (11) is for cutting off flap.
7. a kind of detachable chlor-alkali special valve with leakage preventer according to claim 1, is characterized in that, described flap (11) is for regulating flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520298467.9U CN204592317U (en) | 2015-05-11 | 2015-05-11 | A kind of detachable chlor-alkali special valve with leakage preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520298467.9U CN204592317U (en) | 2015-05-11 | 2015-05-11 | A kind of detachable chlor-alkali special valve with leakage preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592317U true CN204592317U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520298467.9U Expired - Fee Related CN204592317U (en) | 2015-05-11 | 2015-05-11 | A kind of detachable chlor-alkali special valve with leakage preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896107A (en) * | 2015-05-11 | 2015-09-09 | 江苏明江阀业有限公司 | Detachable chlor-alkali special valve having leakage preventing device |
-
2015
- 2015-05-11 CN CN201520298467.9U patent/CN204592317U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896107A (en) * | 2015-05-11 | 2015-09-09 | 江苏明江阀业有限公司 | Detachable chlor-alkali special valve having leakage preventing device |
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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: 20150826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |