CN201934780U - Modified filler pressing sleeve device - Google Patents
Modified filler pressing sleeve device Download PDFInfo
- Publication number
- CN201934780U CN201934780U CN2011200253717U CN201120025371U CN201934780U CN 201934780 U CN201934780 U CN 201934780U CN 2011200253717 U CN2011200253717 U CN 2011200253717U CN 201120025371 U CN201120025371 U CN 201120025371U CN 201934780 U CN201934780 U CN 201934780U
- Authority
- CN
- China
- Prior art keywords
- valve
- pressing sleeve
- filler
- filler pressing
- shaped
- 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 - Lifetime
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Abstract
The utility model relates to the technical field of a double block-and-bleed valve, in particular to a modified filler pressing sleeve device. The modified filler pressing sleeve device is characterized in that O-shaped ring radial sealing grooves are arranged in an internal chamber and an external chamber of a filler pressing sleeve; the filler pressing sleeve is arranged in a valve cover filler box; O-shaped sealing rings are arranged in the internal radial sealing grooves and the external radial sealing grooves of the filler pressing sleeve; the O-shaped sealing rings in the internal chamber are tightly clung with a valve stem; the O-shaped sealing rings in the external chamber are tightly clung with the valve cover filler box; the O-shaped rings can be pre-compressed and sealed by the radial sealing grooves; one end of the valve stem is connected with a flashboard; the other end of the valve stem is connected with an operating mechanism; and the valve cover is fixedly connected with the valve body. The three rubber O-shaped sealing rings prevent the leakage owning to the damage of valve seal, and prevent the leakage of filler as the valve stem reciprocates up and down so as to bring part of flexible graphite, thus really realizing the aim of upper sealing and zero leakage. The modified filler pressing sleeve device has the advantages of changing the structure of the filler pressing sleeve, improving the machining performance, and reducing machining cost.
Description
[technical field]
The utility model relates to having a double meaning double break valve technology field, is a kind of modified model filler gland device.
[background technique]
Existing filler gland compresses filler with the impacting force of Gland and plays seal action.When flashboard is partly opened, body cavity will bear high pressure, if adopt existing single metallic stuffing gland structure, in the valve opening process, because the elevating movement of valve rod can be taken away a part of filler, thereby stuffing box position seal failure, so that valve leak.In chemical enterprise, the packing seal fault is to cause the main cause of unplanned parking; 60% unplanned parking case is relevant with seal failure according to statistics.
[summary of the invention]
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of modified model filler gland device of good sealing effect is provided.
Design a kind of modified model filler gland device for achieving the above object, comprise the O RunddichtringO, O RunddichtringO groove, it is characterized in that: in the described filler gland, exocoel is provided with O shape circle radial seal groove, described filler gland places in the valve gap stuffing box, described O-ring seals places in the filler gland, in the outer radial sealed groove, snug fit between described inner chamber O RunddichtringO and the valve rod, snug fit between described exocoel O RunddichtringO and the valve gap stuffing box, the radial seal groove makes O shape circle be subjected to precompression and seals, described valve rod one end is connected with flashboard, its the other end links to each other with operating device, and described valve gap is fixedlyed connected with valve body.
Adopting filling-material structure between described valve rod and the valve gap stuffing box is seal with O ring and Expanded graphite sealing.
The utility model beneficial effect:
1. three rubber o-rings have stoped the damage that seals on the valve and the leakage that produces, and have stoped because of valve rod pumps to take away partially flexible graphite and cause packing leaking, make the sealing zero leakage of going up truly be achieved.
2. the structural change of filler gland, and processibility improves, and cuts down finished cost.
[description of drawings]
Fig. 1 is the prior art constructions schematic representation;
Fig. 2 is a structural representation of the present utility model;
Appointment Fig. 2 is a Figure of abstract
In the accompanying drawing, 1 is Spielpassung, and 2 is the common fillers gland, and 3 is valve rod, and 4 is valve gap, and 5 is O RunddichtringO groove, and 6 is filler, and 7 is the filler gland,
[embodiment]
Further specify below below in conjunction with last figure the utility model being done:
Referring to accompanying drawing, filler gland of the present utility model is exactly the inside and outside O-ring seals radial seal groove of processing on the standard filler gland, described filler gland places in the valve gap stuffing box, described O-ring seals places in the inside and outside radial seal groove of filler gland, in and snug fit between the valve rod, snug fit between outer and the valve gap stuffing box is utilized the radial seal groove that O shape is enclosed to be subjected to precompression and is sealed, under the pressure medium effect, produce the self-tightening effect and strengthen sealing effect.Described valve rod one end is connected with flashboard, and its other end links to each other with operating device, and described valve gap and valve body are fixedly connected.
Adopt filling-material structure between described valve rod and the valve gap stuffing box: the sealing of seal with O ring+Expanded graphite, form compound seal and make sealing tight more reliable, stop the medium phenomenon that leaks outside.And long service life, compact structure is simple, and is easy to maintenance, with low cost.
Claims (2)
1. modified model filler gland device, comprise the O RunddichtringO, O RunddichtringO groove, it is characterized in that: in the described filler gland, exocoel is provided with O shape circle radial seal groove, described filler gland places in the valve gap stuffing box, described O-ring seals places in the filler gland, in the outer radial sealed groove, snug fit between described inner chamber O RunddichtringO and the valve rod, snug fit between described exocoel O RunddichtringO and the valve gap stuffing box, the radial seal groove makes O shape circle be subjected to precompression and seals, described valve rod one end is connected with flashboard, its the other end links to each other with operating device, and described valve gap is fixedlyed connected with valve body.
2. a kind of modified model filler gland device as claimed in claim 1 is characterized in that: adopting filling-material structure between described valve rod and the valve gap stuffing box is seal with O ring and Expanded graphite sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200253717U CN201934780U (en) | 2011-01-26 | 2011-01-26 | Modified filler pressing sleeve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200253717U CN201934780U (en) | 2011-01-26 | 2011-01-26 | Modified filler pressing sleeve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934780U true CN201934780U (en) | 2011-08-17 |
Family
ID=44446299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200253717U Expired - Lifetime CN201934780U (en) | 2011-01-26 | 2011-01-26 | Modified filler pressing sleeve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759067A (en) * | 2014-01-22 | 2014-04-30 | 大连大高阀门股份有限公司 | LNG multi-seal structure capable of guaranteeing zero leakage at position of valve rod under ultra-low temperature working condition |
| CN108679297A (en) * | 2018-08-01 | 2018-10-19 | 张家港市利佳纺织有限公司 | A kind of packing seal structure of spandex production |
-
2011
- 2011-01-26 CN CN2011200253717U patent/CN201934780U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759067A (en) * | 2014-01-22 | 2014-04-30 | 大连大高阀门股份有限公司 | LNG multi-seal structure capable of guaranteeing zero leakage at position of valve rod under ultra-low temperature working condition |
| CN108679297A (en) * | 2018-08-01 | 2018-10-19 | 张家港市利佳纺织有限公司 | A kind of packing seal structure of spandex production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |