CN202302269U - Corrugated pipe compound seal gate valve for benzene hydrogenation - Google Patents
Corrugated pipe compound seal gate valve for benzene hydrogenation Download PDFInfo
- Publication number
- CN202302269U CN202302269U CN2011203700464U CN201120370046U CN202302269U CN 202302269 U CN202302269 U CN 202302269U CN 2011203700464 U CN2011203700464 U CN 2011203700464U CN 201120370046 U CN201120370046 U CN 201120370046U CN 202302269 U CN202302269 U CN 202302269U
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- China
- Prior art keywords
- valve
- valve rod
- corrugated pipe
- rod
- compound seal
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to a corrugated pipe compound seal gate valve for benzene hydrogenation. The corrugated pipe compound seal gate valve comprises a valve body, a gate board, a valve rod, a valve cover, and a support. Gland packing is disposed between the valve rod and the valve cover; the lower end of the valve rod is connected with the gate board fixedly; the upper end of the valve rod is connected with a hand wheel fixedly after passing through a valve rod nut; and the valve rod is provided with a stop block which is matched with a stop rib on the support for limiting the valve rod to vertical movement. The corrugated pipe compound seal gate valve is characterized in that a corrugated pipe is disposed between the valve cover and the valve rod; the upper end of the corrugated pipe is installed between the valve cover and the valve body in a sealed manner; and the lower end of the corrugated pipe is welded to the lower end of the valve rod. The corrugated pipe compound seal gate valve is a control valve which realizes a double seal structure between the valve rod and the valve cover, improves sealing property between the valve rod and the valve cover, realizes zero leakage, has favorable sealing property, and is suitable for crude benzene processing units.
Description
Technical field
The utility model relates to valve field, specifically about a kind of gate valve.The utility model is suitable for the control valve of crude benzene refining tooling.
Background technique
Gate valve generally is made up of valve body, flashboard, valve rod, valve gap, support; Between valve body inlet passage and outlet passage, be shaped on valve seat; Flashboard two side planes have the sealing surface that cooperatively interacts with the inlet/outlet valve seat, are provided with stuffing box packing between valve rod and the valve gap, and the valve rod lower end is fixedly connected with flashboard; The upper end is passed Stem Mut and is fixedly connected with handwheel; The spacing muscle engagement limits valve rod that valve rod is provided with on limiting stopper and the support only moves up and down, and its major defect is that valve rod moves up and down for a long time in the process stuffing box packing is produced wearing and tearing, causes between valve rod and the valve gap and leaks; Poor sealing performance can not be used for radioactivity, transporting system poisonous, precious material is used.
Summary of the invention
The purpose of the utility model is the shortcoming that exists to existing technology, provides the reliable benzene hydrogenation of a kind of sealability with bellows compound seal gate valve.
The technological scheme of the utility model comprises valve body, flashboard, valve rod, valve gap, support; On valve body inlet passage and outlet passage, be shaped on valve seat respectively, flashboard two side planes have respectively with the inlet/outlet passage on the sealing surface that cooperatively interacts of valve seat, be provided with stuffing box packing between valve rod and the valve gap; The valve rod lower end is fixedly connected with flashboard; The upper end is passed Stem Mut and is fixedly connected with handwheel, and the spacing muscle engagement limits valve rod that valve rod is provided with on limiting stopper and the support only moves up and down, and mainly is between valve gap and valve rod, to be provided with bellows; The upper end sealing of this bellows is installed between valve gap and the valve body, and lower end seal weld is connected on the valve rod lower end.
The utility model has the advantages that between valve rod and valve gap, to be provided with filler and bellows double-sealing device, improved the sealability between valve rod and the valve gap, realize the valve zero leakage, can be used for using in the transporting system of radioactivity, poisonous, precious material.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Benzene hydrogenation as shown in Figure 1 is with bellows compound seal gate valve; Comprise valve body 1, flashboard 2, valve rod 4, valve gap 7, support 10; Between valve body 1 inlet passage and outlet passage, be shaped on valve seat, have respectively in 2 liang of side planes of flashboard with the inlet/outlet passage in the sealing surface that cooperatively interacts of valve seat, be provided with stuffing box packing 8 between valve rod 4 and the valve gap 7; Valve rod 4 lower ends are fixedly connected with flashboard 2; The upper end is passed Stem Mut 11 and is fixedly connected with handwheel 12, and 4 of the spacing muscle engagement limits valve rods that valve rod 4 is provided with on limiting stopper and the support 10 move up and down, and valve gap 7 is installed on the valve body 1 through a connecting body 5.Between valve gap 7 and valve rod 4, be provided with bellows 3, the upper end sealing of this bellows 3 is installed between valve gap 7 and the connecting body 5, and lower end seal weld is connected on the step of valve rod 4 lower ends.
Claims (1)
1. a benzene hydrogenation is with bellows compound seal gate valve; Comprise valve body (1), flashboard (2), valve rod (4), valve gap (7), support (10); Between valve body (1) inlet passage and outlet passage, be shaped on valve seat; Have the sealing surface that cooperatively interacts with the interior valve seat of valve body (1) inlet/outlet passage in flashboard (2) two side planes respectively, be provided with stuffing box packing (8) between valve rod (4) and the valve gap (7), valve rod (4) lower end is fixedly connected with flashboard (2); The upper end is passed Stem Mut (11) and is fixedly connected with handwheel (12); The spacing muscle engagement limits valve rod (4) that valve rod (4) is provided with on limiting stopper and the support (10) only moves up and down, and valve gap (7) is installed on the valve body (1) through a connecting body (5), it is characterized in that between valve gap (7) and valve rod (4), being provided with bellows (3); The upper end sealing of this bellows (3) is installed between valve gap (7) and the connecting body (5), and lower end seal weld is connected on the step of valve rod (4) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203700464U CN202302269U (en) | 2011-09-29 | 2011-09-29 | Corrugated pipe compound seal gate valve for benzene hydrogenation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203700464U CN202302269U (en) | 2011-09-29 | 2011-09-29 | Corrugated pipe compound seal gate valve for benzene hydrogenation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302269U true CN202302269U (en) | 2012-07-04 |
Family
ID=46371164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203700464U Expired - Fee Related CN202302269U (en) | 2011-09-29 | 2011-09-29 | Corrugated pipe compound seal gate valve for benzene hydrogenation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855131A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of Parallel gate valve Parallel slide valve |
-
2011
- 2011-09-29 CN CN2011203700464U patent/CN202302269U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855131A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of Parallel gate valve Parallel slide 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20160929 |