CN203671004U - Novel compression device for packing and valve rod of pressure valve - Google Patents
Novel compression device for packing and valve rod of pressure valve Download PDFInfo
- Publication number
- CN203671004U CN203671004U CN201320864287.3U CN201320864287U CN203671004U CN 203671004 U CN203671004 U CN 203671004U CN 201320864287 U CN201320864287 U CN 201320864287U CN 203671004 U CN203671004 U CN 203671004U
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- CN
- China
- Prior art keywords
- packing
- valve rod
- valve
- seal ring
- valve body
- 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
A novel compression device for packing and a valve rod of a pressure valve comprises a valve body and the valve rod. The valve rod is installed in the valve body. The packing, an O-shaped seal ring, a packing gland and a Y-shaped seal ring are installed between the valve body and the valve rod. Meanwhile, a round nut is embedded in the valve body to tightly press and seal the packing, the O-shaped seal ring, the packing gland and the Y-shaped seal ring. The novel compression device for the packing and the valve rod of the pressure valve has the advantages that the structure is simple, and the number of parts is small; the O-shaped seal ring is installed between the lower portion of the packing gland and the valve body, and meanwhile the Y-shaped seal ring is additionally arranged between the upper portion of the packing gland and the valve rod, so that the reliability of sealing of the valve body is enhanced; an upper lip of the Y-shaped seal ring cleans the valve rod automatically so that dirt on the valve rod cannot enter the packing portion, the abrasion of the valve rod and the packing is reduced, and the service life of the valve rod and the packing is prolonged; when the packing is replaced, the round nut and the packing gland are screwed off, and then the packing can be replaced conveniently and quickly; besides, the round nut makes the packing be evenly stressed, so that the packing is not prone to leakage.
Description
Technical field
The utility model relates to a kind of pressure valve stem packing compressing structure, relates in particular to a kind of novel pressure valve stem packing hold down gag.
Background technique
Existing most of pressure valve is under high-pressure and high-temperature steam working condition, valve stem seal is poor, causes Leakage Gas, produces vibration, valve rod is in the process moving up and down, dirt easily enters in valve body, pollutes filler, the working life of reducing valve rod and filler when wearing and tearing valve rod, replacement process, complicated operation, if misoperation is easily polluted filler.
Summary of the invention
It is reliable that the purpose of this utility model is to provide a kind of valve stem seal, released gas rate is low, working stability is difficult for producing vibration, valve rod moves up and down in process and prevents that dirt from entering valve body, extend valve rod and filler working life, replacement process is convenient, is difficult for polluting the novel pressure valve stem packing hold down gag of filler.
For achieving the above object, the technological scheme that the utility model adopts is:
A kind of novel pressure valve stem packing hold down gag, comprising: valve body and valve rod, described valve rod is arranged in valve body, its feature is: filler, O RunddichtringO, Gland and y-type seal ring are installed between described valve body and valve rod, simultaneously on valve body nested installation round nut by described filler, O RunddichtringO, Gland and y-type seal ring press seal.
The utility model has the advantages that: the utility model existing pressure valve stem packing hold down gag of comparing, component simple in structure are few, mounting O-shaped seal ring between Gland bottom and valve body, between Gland top and valve rod, increase y-type seal ring simultaneously, increase valve seal reliability, the upper lip of y-type seal ring plays automatic cleaning action to valve rod, make the dirt on valve rod can not enter into filler position, the wearing and tearing of valve rod and filler are reduced, valve rod and filler working life are extended, while changing filler, screw off round nut and Gland, it is filler-changeable, fast and easy, round nut makes filler stressed evenly simultaneously, filler is easy to leak not.
Accompanying drawing explanation
Fig. 1 the utility model structural representation.
Fig. 2 the utility model improves pre-structure schematic diagram.
In accompanying drawing
1, valve body; 2, valve rod; 3, filler; 4, O RunddichtringO; 5, round nut; 6, Gland; 7, y-type seal ring; 8, spring; 9, Packing seat; 10, hold-down grid; 11, bolt and nut.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described:
A kind of novel pressure valve stem packing hold down gag, as shown in Figure 1, 2, comprising: valve body 1 and valve rod 2, described valve rod 2 is arranged in valve body 1, filler 3, O RunddichtringO 4, Gland 6 and y-type seal ring 7 are installed between described valve body 1 and valve rod 2, simultaneously on valve body nested installation round nut 5 by described filler 3, O RunddichtringO 4, Gland 6 and y-type seal ring 7 press seals.
The utility model beneficial effect: the utility model existing pressure valve stem packing hold down gag of comparing, reduce spring 8, Packing seat 9, hold-down grid 10, two bolt and nuts 11, increase round nut 5, O RunddichtringO 4, y-type seal ring 7, component simple in structure reduce, mounting O-shaped seal ring 4 between Gland 6 bottoms and valve body 1, between Gland top and valve rod, increase y-type seal ring 7 simultaneously, increase valve body 1 sealing reliability, the upper lip of y-type seal ring 7 plays automatic cleaning action to valve rod 2, make the dirt on valve rod 2 can not enter into filler 3 positions, the wearing and tearing of valve rod 2 with filler 3 are reduced, valve rod 2 and 3 working lifes of filler are extended, while changing filler 3, screw off round nut 5 and Gland 6, it is filler-changeable 3, fast and easy, round nut 5 makes filler 3 stressed evenly simultaneously, the both sides bolt and nut 11 of comparing compresses stressed simultaneously, there will not be unbalance stress to cause filler 3 seepages.
Embodiment recited above is described preferred implementation of the present utility model; not design of the present utility model and protection domain are limited; do not departing under the prerequisite of the utility model design concept; various modification and improvement that in related domain, common engineers and technicians make the technical solution of the utility model, all should fall into protection domain of the present utility model.
Claims (1)
1. a novel pressure valve stem packing hold down gag, comprising: valve body (1) and valve rod (2), described valve rod (2) is arranged in valve body (1), it is characterized in that: filler (3), O RunddichtringO (4), Gland (6) and y-type seal ring (7) are installed between described valve body (1) and valve rod (2), simultaneously on valve body nested installation round nut (5) by described filler (3), O RunddichtringO (4), Gland (6) and y-type seal ring (7) press seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320864287.3U CN203671004U (en) | 2013-12-26 | 2013-12-26 | Novel compression device for packing and valve rod of pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320864287.3U CN203671004U (en) | 2013-12-26 | 2013-12-26 | Novel compression device for packing and valve rod of pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203671004U true CN203671004U (en) | 2014-06-25 |
Family
ID=50967298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320864287.3U Expired - Fee Related CN203671004U (en) | 2013-12-26 | 2013-12-26 | Novel compression device for packing and valve rod of pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203671004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315247A (en) * | 2014-10-22 | 2015-01-28 | 安徽淮化股份有限公司 | Valve packing gland pressing plate and replacing method thereof |
-
2013
- 2013-12-26 CN CN201320864287.3U patent/CN203671004U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315247A (en) * | 2014-10-22 | 2015-01-28 | 安徽淮化股份有限公司 | Valve packing gland pressing plate and replacing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG ZONY HIGH PRESSURE VALVE CO., LTD. Free format text: FORMER OWNER: ZHONGLI VALVE GROUP CO., LTD. Effective date: 20141121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141121 Address after: 277800 private zone of hi tech Zone, Shandong, Zaozhuang (north the Yellow River Road, West Songshan Road) Patentee after: Shandong Zhongli Machinery Manufacturing Co., Ltd. Address before: 277800 Shandong city of Zaozhuang province high tech District Road North Patentee before: ZHONGLI VALVE GROUP CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141226 |
|
| EXPY | Termination of patent right or utility model |