CN204387474U - The high leak tightness ammonia stop valve of auto-compensation - Google Patents
The high leak tightness ammonia stop valve of auto-compensation Download PDFInfo
- Publication number
- CN204387474U CN204387474U CN201420728809.1U CN201420728809U CN204387474U CN 204387474 U CN204387474 U CN 204387474U CN 201420728809 U CN201420728809 U CN 201420728809U CN 204387474 U CN204387474 U CN 204387474U
- Authority
- CN
- China
- Prior art keywords
- valve
- insertion ring
- gland nut
- auto
- inner chamber
- 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
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Abstract
The utility model relates to a kind of stop valve.A kind of high leak tightness ammonia stop valve of auto-compensation, the valve gap comprise valve body, being bolted with valve body, be arranged on the valve rod in valve body and valve gap inner chamber and be separately positioned on handwheel and the flap of valve stem top and bottom, step-like groove is provided with in described valve gap inner chamber, spring, insertion ring and gland nut is provided with successively in described groove, described spring, insertion ring and gland nut and valve rod are set with, and insertion ring and the equal gluing, sealing of valve rod are slidably matched, the groove top of described valve gap inner chamber is provided with the internal thread mated with gland nut.The utility model optimizes the frictional force between valve rod and filler, and make handwheel little by frictional force when switch, switch is convenient.
Description
Technical field
The utility model relates to a kind of stop valve, is specifically related to a kind of high leak tightness ammonia stop valve of auto-compensation.
Background technique
Existing ammonia stop valve is the sealing of a kind of single padding-locking.Filler is put in filling container, with the locked sealing configuration of gland nut, after re-using a period of time, the filler of its valve gap inside there will be elastic fatigue, thus causes sealing bad, produce the problem of leaking, in use, being of wide application for stop valve, great majority belong to not easily changeable pipeline and connect, if there is leakage, very large impact is all caused on whole production line.
Model utility content
The purpose of this utility model is for above-mentioned Problems existing and deficiency, provides the high leak tightness ammonia stop valve of the auto-compensation of a kind of reasonable in design, good sealing effect.
For achieving the above object, the technological scheme taked is:
A kind of high leak tightness ammonia stop valve of auto-compensation, the valve gap comprise valve body, being bolted with valve body, be arranged on the valve rod in valve body and valve gap inner chamber and be separately positioned on handwheel and the flap of valve stem top and bottom, step-like groove is provided with in described valve gap inner chamber, spring, insertion ring and gland nut is provided with successively in described groove, described spring, insertion ring and gland nut and valve rod are set with, and insertion ring and the equal gluing, sealing of valve rod are slidably matched, the groove top of described valve gap inner chamber is provided with the internal thread mated with gland nut.
Described valve gap top is provided with fastening screw nut, and fastening screw nut and gland nut pass through screw-thread fit.
The material of described insertion ring is teflon.
Adopt technique scheme, acquired beneficial effect is:
The utility model, by carrying out new design to the structure between valve gap and valve rod, filler by forcing design, is changed to automatic compensation structure, good airproof performance; Simultaneously for the Pressure Analysis in seal process between filler and valve rod, the relation of Reasonable adjustment spring and filler, optimizes the frictional force between valve rod and filler, and make handwheel little by frictional force when switch, switch is convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Sequence number in figure: 1 be valve body, 2 be valve gap, 3 be valve rod, 4 be handwheel, 5 be groove, 6 be spring, 7 be insertion ring, 8 be gland nut, 9 for fastening screw nut.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
See Fig. 1, a kind of high leak tightness ammonia stop valve of auto-compensation, comprise valve body 1, the valve gap 2 be bolted with valve body 1, be arranged on the valve rod 3 in valve body 1 and valve gap 2 inner chamber, and be separately positioned on handwheel 4 and the flap of valve rod 3 top and bottom, step-like groove 5 is provided with in described valve gap 2 inner chamber, spring 6 is provided with successively in described groove 5, insertion ring 7 and gland nut 8, described spring 6, insertion ring 7 and gland nut 8 are set with valve rod 3, and insertion ring 7 is slidably matched with the equal gluing, sealing of valve rod 3, groove 5 top of described valve gap 2 inner chamber is provided with the internal thread mated with gland nut 8, described valve gap 2 top is provided with fastening screw nut 9, fastening screw nut 9 and valve gland nut 8 pass through screw-thread fit, the material of described insertion ring 7 is teflon.
The utility model, by carrying out new design to the structure between valve gap and valve rod, filler by forcing design, is changed to automatic compensation structure, good airproof performance; Simultaneously for the Pressure Analysis in seal process between filler and valve rod, the relation of Reasonable adjustment spring and filler, optimizes the frictional force between valve rod and filler, and make handwheel little by frictional force when switch, switch is convenient.
Claims (3)
1. the high leak tightness ammonia stop valve of an auto-compensation, comprise valve body, the valve gap be bolted with valve body, be arranged on the valve rod in valve body and valve gap inner chamber, and be separately positioned on handwheel and the flap of valve stem top and bottom, it is characterized in that, step-like groove is provided with in described valve gap inner chamber, spring is provided with successively in described groove, insertion ring and gland nut, described spring, insertion ring and gland nut and valve rod are set with, and insertion ring and the equal gluing, sealing of valve rod are slidably matched, the groove top of described valve gap inner chamber is provided with the internal thread mated with gland nut.
2. the high leak tightness ammonia stop valve of auto-compensation according to claim 1, is characterized in that, described valve gap top is provided with fastening screw nut, and fastening screw nut and gland nut pass through screw-thread fit.
3. the high leak tightness ammonia stop valve of auto-compensation according to claim 1, is characterized in that, the material of described insertion ring is teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728809.1U CN204387474U (en) | 2014-11-28 | 2014-11-28 | The high leak tightness ammonia stop valve of auto-compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728809.1U CN204387474U (en) | 2014-11-28 | 2014-11-28 | The high leak tightness ammonia stop valve of auto-compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387474U true CN204387474U (en) | 2015-06-10 |
Family
ID=53360194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420728809.1U Expired - Fee Related CN204387474U (en) | 2014-11-28 | 2014-11-28 | The high leak tightness ammonia stop valve of auto-compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387474U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692038A (en) * | 2018-05-28 | 2018-10-23 | 张家港富瑞阀门有限公司 | A kind of Novel ultralow-temperature shut-off valve and its operational method |
| CN109357021A (en) * | 2018-12-11 | 2019-02-19 | 广州市新彤和技术研究有限公司 | One kind can compensate pressing sleeve formula shut-off valve and method automatically |
| CN109595367A (en) * | 2018-12-24 | 2019-04-09 | 张家港富瑞阀门有限公司 | A kind of novel high-pressure adds hydrogen mouth and its method of hydrotreating |
-
2014
- 2014-11-28 CN CN201420728809.1U patent/CN204387474U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692038A (en) * | 2018-05-28 | 2018-10-23 | 张家港富瑞阀门有限公司 | A kind of Novel ultralow-temperature shut-off valve and its operational method |
| CN109357021A (en) * | 2018-12-11 | 2019-02-19 | 广州市新彤和技术研究有限公司 | One kind can compensate pressing sleeve formula shut-off valve and method automatically |
| CN109595367A (en) * | 2018-12-24 | 2019-04-09 | 张家港富瑞阀门有限公司 | A kind of novel high-pressure adds hydrogen mouth and its method of hydrotreating |
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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: 20150610 Termination date: 20201128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |