CN205908758U - High pressure resistant eccentric butterfly valve - Google Patents

High pressure resistant eccentric butterfly valve Download PDF

Info

Publication number
CN205908758U
CN205908758U CN201620632827.9U CN201620632827U CN205908758U CN 205908758 U CN205908758 U CN 205908758U CN 201620632827 U CN201620632827 U CN 201620632827U CN 205908758 U CN205908758 U CN 205908758U
Authority
CN
China
Prior art keywords
valve
shaft sleeve
axle sleeve
valve rod
high pressure
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
CN201620632827.9U
Other languages
Chinese (zh)
Inventor
全文章
李顺明
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 Zhong Hao Marine Valve Manufacturing Co Ltd
Original Assignee
Jiangsu Zhong Hao Marine Valve Manufacturing 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 Zhong Hao Marine Valve Manufacturing Co Ltd filed Critical Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd
Priority to CN201620632827.9U priority Critical patent/CN205908758U/en
Application granted granted Critical
Publication of CN205908758U publication Critical patent/CN205908758U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a high pressure resistant eccentric butterfly valve, include valve rod, valve plate, valve body, go up axle sleeve and lower axle sleeve, upward axle sleeve, lower axle sleeve set up respectively in the upper and lower portion of valve body, the valve rod supports on the valve body through the last axle sleeve that sets up from top to bottom, lower axle sleeve, the valve rod surface interval of going up in the axle sleeve hole is equipped with the twice annular, is equipped with the sealing washer in the annular, constitutes dual radial shaft seal structure, valve rod surface interval in the axle sleeve hole is equipped with the twice annular down, is equipped with the sealing washer in the annular, constitutes dual radial shaft seal structure, the further improvement lies in: upward axle sleeve, lower axle sleeve hole surface are equipped with metal wear -resistant coating respectively, valve rod, valve plate pass through spline struvture and connect. The utility model discloses sealed reliable, the valve leakage volume is few, high pressure resistant, long service life.

Description

High pressure resistant eccentric-butterfly-valve
Technical field
This utility model is related to a kind of valve, particularly a kind of eccentric-butterfly-valve.
Background technology
Eccentric-butterfly-valve is widely used in the industrial pipelines such as metallurgy, electric power, petrochemical industry and plumbing and urban construction On, make adjustments flow and block fluid use.The valve rod of existing eccentric-butterfly-valve passes through Upper shaft sleeve setting up and down, Lower shaft sleeve supporting On valve body, interporal lacuna cooperation in valve rod and Upper shaft sleeve, Lower shaft sleeve, during use, pumped (conveying) medium easily from valve rod and Upper shaft sleeve, Leak at inner hole of shaft sleeve cooperation, sealing reliability is poor, pressure poor performance.
Content of the invention
This utility model is directed to the deficiencies in the prior art, proposes a kind of to significantly improve sealing reliability, pressure performance High pressure resistant eccentric-butterfly-valve.
This utility model is achieved through the following technical solutions technical goal.
High pressure resistant eccentric-butterfly-valve, including valve rod, valve plate, valve body, Upper shaft sleeve and Lower shaft sleeve;Described Upper shaft sleeve, Lower shaft sleeve divide It is not arranged on valve body upper and lower part;Described valve rod is bearing on valve body by Upper shaft sleeve setting up and down, Lower shaft sleeve;It improves it Place is: the stem surface in described Upper shaft sleeve endoporus is interval with twice annular groove, is provided with sealing ring in annular groove, constitutes dual footpath To shaft seal structure;Stem surface in described Lower shaft sleeve endoporus is interval with twice annular groove, is provided with sealing ring in annular groove, constitutes double Weight radial shaft seal structure.
In said structure, described Upper shaft sleeve, Lower shaft sleeve bore area are respectively equipped with abrasion-resistant metal coating.
In said structure, described valve rod, valve plate are connected by spline structure.
This utility model compared with prior art, has the positive effect that:
1st, the stem surface in upper and lower inner hole of shaft sleeve is respectively separated and is provided with twice annular groove, is provided with sealing ring in annular groove, constitutes Double radial shaft seal structure, so, significantly improves and reliably seals at upper and lower axle sleeve and valve rod cooperation, even if in certain pressure Under, pumped (conveying) medium also will not leak at valve rod with Upper shaft sleeve, Lower shaft sleeve inner hole, significantly improves this utility model resistance to pressure Energy.
2nd, Upper shaft sleeve, Lower shaft sleeve bore area are respectively equipped with abrasion-resistant metal coating, significantly improve Upper shaft sleeve, Lower shaft sleeve endoporus Surface abrasion resistance, improves this utility model service life.
3rd, valve rod, valve plate are connected by spline structure, and spline connection can eliminate fit-up gap to greatest extent, make valve plate action Position is accurately it is ensured that seal stability.
Brief description
Fig. 1 is this utility model structural representation.
Fig. 2 is enlarged schematic partial view in Fig. 1.
Fig. 3 is enlarged schematic partial view in Fig. 1.
Specific embodiment
Below according to accompanying drawing and in conjunction with the embodiments the utility model is described in further detail.
High pressure resistant eccentric-butterfly-valve shown in the drawings, including valve rod 1, valve plate 2, valve body 3, Upper shaft sleeve 4 and Lower shaft sleeve 5, this reality Apply in example, valve rod 1, valve plate 2 are connected by spline structure;Upper shaft sleeve 4, Lower shaft sleeve 5 are separately positioned on valve body 3 upper and lower part, this reality Apply in example, Upper shaft sleeve 4, Lower shaft sleeve 5 bore area are respectively equipped with abrasion-resistant metal coating;Valve rod 1 passes through Upper shaft sleeve setting up and down 4th, Lower shaft sleeve 5 is bearing on valve body 3;Valve rod 1 spaced surface in Upper shaft sleeve 4 endoporus is provided with twice annular groove, is provided with close in annular groove Seal 6, constitutes double radial shaft seal structure;Valve rod 1 spaced surface in Lower shaft sleeve 5 endoporus is provided with twice annular groove, sets in annular groove There is sealing ring 6, constitute double radial shaft seal structure.

Claims (3)

1. a kind of high pressure resistant eccentric-butterfly-valve, including valve rod (1), valve plate (2), valve body (3), Upper shaft sleeve (4) and Lower shaft sleeve (5);Institute State Upper shaft sleeve (4), Lower shaft sleeve (5) is separately positioned on valve body (3) upper and lower part;Described valve rod (1) passes through Upper shaft sleeve setting up and down (4), Lower shaft sleeve (5) is bearing on valve body (3);It is characterized in that: valve rod (1) spaced surface in described Upper shaft sleeve (4) endoporus It is provided with twice annular groove, in annular groove, is provided with sealing ring (6), constitute double radial shaft seal structure;Valve in described Lower shaft sleeve (5) endoporus Bar (1) spaced surface is provided with twice annular groove, is provided with sealing ring (6) in annular groove, constitutes double radial shaft seal structure.
2. high pressure resistant eccentric-butterfly-valve according to claim 1 it is characterised in that: described Upper shaft sleeve (4), in Lower shaft sleeve (5) Hole surface is respectively equipped with abrasion-resistant metal coating.
3. high pressure resistant eccentric-butterfly-valve according to claim 1 and 2 it is characterised in that: described valve rod (1), valve plate (2) pass through Spline structure connects.
CN201620632827.9U 2016-06-24 2016-06-24 High pressure resistant eccentric butterfly valve Expired - Fee Related CN205908758U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620632827.9U CN205908758U (en) 2016-06-24 2016-06-24 High pressure resistant eccentric butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620632827.9U CN205908758U (en) 2016-06-24 2016-06-24 High pressure resistant eccentric butterfly valve

Publications (1)

Publication Number Publication Date
CN205908758U true CN205908758U (en) 2017-01-25

Family

ID=57812834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620632827.9U Expired - Fee Related CN205908758U (en) 2016-06-24 2016-06-24 High pressure resistant eccentric butterfly valve

Country Status (1)

Country Link
CN (1) CN205908758U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987180A (en) * 2016-06-24 2016-10-05 江苏中昊船用阀门制造有限公司 High pressure resistant eccentric butterfly valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987180A (en) * 2016-06-24 2016-10-05 江苏中昊船用阀门制造有限公司 High pressure resistant eccentric butterfly valve

Similar Documents

Publication Publication Date Title
CN205908758U (en) High pressure resistant eccentric butterfly valve
CN202646742U (en) High-pressure accumulation-proof throttling stop valve
CN204127377U (en) The two lining ball valve of a kind of chemical industry
CN202992205U (en) Low load type cutting-off butterfly valve
CN201103698Y (en) Balancing type break valve
CN205908757U (en) Wear -resisting high temperature resistant eccentric butterfly valve
CN204239784U (en) A kind of emery wheel modulating valve with emery wheel lubricating structure
CN203892602U (en) Triple-eccentric metal hard-sealing half ball valve
CN105987180A (en) High pressure resistant eccentric butterfly valve
CN203009855U (en) Internal-pressure self-sealing type valve cover stop valve
CN203322297U (en) Elastic self-sealing butterfly valve
CN201636395U (en) Straight-through check valve
CN106641295A (en) High-temperature-resisting check and stop valve
CN204312723U (en) The butterfly valve of a kind of band half spherical arc shape butterfly plate
CN206816857U (en) A kind of ceramic ball valve
CN205895193U (en) Tuningout polish rod sealing device is prevented spouting by high abrasion
CN201103727Y (en) Balance type check valve
CN205745426U (en) A kind of heavy caliber heat supply all-welded ball valve
CN204312721U (en) The seal butterfly valve of a kind of band half spherical arc shape butterfly plate
CN207830576U (en) A kind of two-way butterfly valve
CN204512483U (en) Heavy-caliber high-temperature metal sealing bracing type valve
CN206708438U (en) A kind of heavy caliber high pressure ball valve
CN203757021U (en) Novel stop valve
CN204140992U (en) A kind of two lining ball valve
CN204153215U (en) A kind of hard seal eccentric ball valve with floating valve seat

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: 20170125

Termination date: 20210624