CN206861044U - Floating type valve stem seal seat - Google Patents

Floating type valve stem seal seat Download PDF

Info

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
Application number
CN201720660665.4U
Other languages
Chinese (zh)
Inventor
程光明
徐忠良
蒋红强
王军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU LIYU ENVIRONMENTAL TECHNOLOGY Co Ltd
Original Assignee
JIANGSU LIYU ENVIRONMENTAL TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU LIYU ENVIRONMENTAL TECHNOLOGY Co Ltd filed Critical JIANGSU LIYU ENVIRONMENTAL TECHNOLOGY Co Ltd
Priority to CN201720660665.4U priority Critical patent/CN206861044U/en
Application granted granted Critical
Publication of CN206861044U publication Critical patent/CN206861044U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Floating type valve stem seal seat
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.
CN201720660665.4U 2017-06-08 2017-06-08 Floating type valve stem seal seat Expired - Fee Related CN206861044U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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