CN206861044U - Floating type valve stem seal seat - Google Patents
Floating type valve stem seal seat Download PDFInfo
- Publication number
- CN206861044U CN206861044U CN201720660665.4U CN201720660665U CN206861044U CN 206861044 U CN206861044 U CN 206861044U CN 201720660665 U CN201720660665 U CN 201720660665U CN 206861044 U CN206861044 U CN 206861044U
- Authority
- CN
- China
- Prior art keywords
- loose collar
- fixed seat
- sealing
- seal
- sealing fixed
- 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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- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
Floating type valve stem seal seat, including the sealing fixed seat with the welding of the valve body of gas valve, it is installed on the gland of sealing fixed seat one end, set and the seal and valve rod in sealing fixed seat, sealing fixed seat includes the cylindrical shell of open at one end, it is opened in the central through hole of cylindrical shell sealed end, seal is inserted in cylinder type shell from open-mouth, the seal includes loose collar, two circles neck arranged side by side is provided with the inside of loose collar, a sealing ring is embedded with neck, valve rod inserts out of central through hole, loose collar is socketed on valve rod, valve rod one end passes from gland centre bore, the loose collar maximum outside diameter is less than cylindrical shell internal diameter, loose collar radially leaves regulation gap with cylinder housing, movable ring length is more than or equal to sealing fixed seat depth, loose collar is crimped in sealing fixed seat by gland.
Description
Technical field
It the utility model is related to the valve rod sealing device for burning gas valve in furnace apparatus.
Background technology
Because incinerator body structure is more special, need to set valve on casing, and flue gas pressures are usual in valve
For malleation, and only possible leak point is exactly at valve stem seal, and the valve stem seal degree of prior art is inadequate, and due to installation
When concentricity have deviation, cause sealing part abrasion serious, cause to leak, to the increase of the requirement on machining accuracy of valve rod, so as to cause
Cost increase.
Utility model content
The utility model is in view of the shortcomings of the prior art, there is provided a kind of economic, easy for installation, maintenance is simply, efficiently
Floating type valve stem seal seat.It is applicable with the of a relatively high place of temperature.
To realize the utility model purpose, there is provided following technical scheme：Floating type valve stem seal seat, including with gas trap
The sealing fixed seat of valve body welding, the gland for being installed on sealing fixed seat one end, setting and the sealing in sealing fixed seat of door
Part and valve rod, it is characterised in that sealing fixed seat includes the cylindrical shell of open at one end, is opened in cylindrical shell sealing
The central through hole at end, seal are inserted in cylinder type shell from open-mouth, and the seal includes loose collar, is set on the inside of loose collar
Two circles neck arranged side by side is equipped with, is embedded with a sealing ring in neck, valve rod inserts out of central through hole, and loose collar is socketed on valve rod
On, valve rod one end passes from gland centre bore, and the loose collar maximum outside diameter is less than cylindrical shell internal diameter, loose collar and cylinder
Property housing radially leave regulation gap, movable ring length be more than or equal to sealing fixed seat depth, loose collar is crimped on close by gland
In sealing reservation.
Preferably, sealing ring is respectively carbon seal ring and polytetrafluoroethylsealed sealed circle.
Preferably, bolt is set to be locked with sealing fixed seat regulation on gland.
Preferably, regulation gap is 2 ~ 4mm.
The utility model beneficial effect：The utility model has by setting loose collar between loose collar and sealing fixed seat
Certain space, so when installing valve rod by freely adjusting loose collar radial position, it can process and install with abatement apparatus
Caused Concentricity tolerance.Therefore the seal extruding brought due to valve rod decentraction, abnormal friction equivalent damage can be eliminated, therefore
The preferable long lifespan of sealing；Resistance to temperature is preferable, can be adapted to the higher occasion of temperature；It is effective to protect simultaneously by two seals
The sealing of valve rod is demonstrate,proved.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment 1：Floating type valve stem seal seat, including welded with the valve body of gas valve sealing fixed seat 1, be installed on
Seal the gland 2 of the one end of fixed seat 1, set with sealing seal 3 and valve rod 4 in fixed seat 1, sealing fixed seat 1 includes
The cylindrical shell 1.1 of open at one end, the central through hole 1.2 for being opened in the sealed end of cylindrical shell 1.1, seal 3 is from opening
Dispose in cylinder type shell 1.1, the seal 3 includes loose collar 3.1, and it is arranged side by side that loose collar 3.1 inner side is provided with two circles
Neck, a sealing ring 3.2 being embedded with neck, valve rod 4 is inserted out of central through hole 1.2, and loose collar 3.1 is socketed on valve rod 4,
The one end of valve rod 4 passes from the centre bore of gland 2, and the maximum outside diameter of loose collar 3.1 is less than the internal diameter of cylindrical shell 1.1, loose collar
3.1 leave regulation gap with the radial direction of cylinder housing 1.1, and the length of loose collar 3.1 is more than or equal to the sealing depth of fixed seat 1, gland 2
Loose collar 3.1 is crimped in sealing fixed seat 1.Sealing ring 3.2 is respectively carbon seal ring and polytetrafluoroethylsealed sealed circle.On gland 2
Bolt is set to be locked with the sealing regulation of fixed seat 1.Regulation gap is 2 ~ 4mm.After the position adjustment of valve rod 4 is good, locking screw is adjusted
Bolt fastens gland 2.The actuator for reaching valve rod 4 and gas valve is concentric and seal.
Claims (4)
1. floating type valve stem seal seat, including welded with the valve body of gas valve sealing fixed seat, be installed on sealing fixed seat
The gland of one end, the seal and valve rod being arranged in sealing fixed seat, it is characterised in that sealing fixed seat opens including one end
The cylindrical shell of mouth, the central through hole for being opened in cylindrical shell sealed end, seal insert cylinder type shell from open-mouth
Interior, the seal includes loose collar, is provided with two circles neck arranged side by side on the inside of loose collar, a sealing ring is embedded with neck,
Valve rod is inserted out of central through hole, and loose collar is socketed on valve rod, and valve rod one end passes from gland centre bore, and the loose collar is most
Big external diameter is less than cylindrical shell internal diameter, and loose collar radially leaves with cylindrical shell and adjusts gap, and movable ring length is more than etc.
In sealing fixed seat depth, loose collar is crimped in sealing fixed seat by gland.
2. floating type valve stem seal seat according to claim 1, it is characterised in that sealing ring be respectively carbon seal ring and
Polytetrafluoroethylsealed sealed circle.
3. floating type valve stem seal seat according to claim 1, it is characterised in that set bolt to be fixed with sealing on gland
Seat regulation locking.
4. floating type valve stem seal seat according to claim 1, it is characterised in that regulation gap is 2 ~ 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720660665.4U CN206861044U (en) | 2017-06-08 | 2017-06-08 | Floating type valve stem seal seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720660665.4U CN206861044U (en) | 2017-06-08 | 2017-06-08 | Floating type valve stem seal seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206861044U true CN206861044U (en) | 2018-01-09 |
Family
ID=60830750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720660665.4U Expired - Fee Related CN206861044U (en) | 2017-06-08 | 2017-06-08 | Floating type valve stem seal seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206861044U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218435A (en) * | 2017-06-08 | 2017-09-29 | 江苏立宇环境科技有限公司 | Floating type valve stem seal seat |
| CN112923122A (en) * | 2021-01-19 | 2021-06-08 | 沂源县华阳能源设备有限公司 | Novel valve rod sealing device |
-
2017
- 2017-06-08 CN CN201720660665.4U patent/CN206861044U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218435A (en) * | 2017-06-08 | 2017-09-29 | 江苏立宇环境科技有限公司 | Floating type valve stem seal seat |
| CN112923122A (en) * | 2021-01-19 | 2021-06-08 | 沂源县华阳能源设备有限公司 | Novel valve rod sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20210608 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |