CN201593614U - High-pressure self-sealing packing shutoff valve - Google Patents

High-pressure self-sealing packing shutoff valve Download PDF

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Publication number
CN201593614U
CN201593614U CN2010200496339U CN201020049633U CN201593614U CN 201593614 U CN201593614 U CN 201593614U CN 2010200496339 U CN2010200496339 U CN 2010200496339U CN 201020049633 U CN201020049633 U CN 201020049633U CN 201593614 U CN201593614 U CN 201593614U
Authority
CN
China
Prior art keywords
valve
filler
seal seat
sealing
valve rod
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
CN2010200496339U
Other languages
Chinese (zh)
Inventor
赵华良
张洪
饶伟
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.)
LIANGJING GROUP CO Ltd
Original Assignee
LIANGJING GROUP 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 LIANGJING GROUP CO Ltd filed Critical LIANGJING GROUP CO Ltd
Priority to CN2010200496339U priority Critical patent/CN201593614U/en
Application granted granted Critical
Publication of CN201593614U publication Critical patent/CN201593614U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a high-pressure self-sealing packing shutoff valve comprising a valve body, a valve clack, a valve rod, a valve cover, a valve-stem nut, a transmission hand wheel, a sealing element and an installation part, wherein the valve rod and the valve cover adopts the self-sealing packing device for sealing; the self-sealing packing device consists of a lower seal seat, a compression ring, a filler, an upper seal seat and a bellevill spring; the filler is installed in the upper plane of the compression ring; the compression ring is installed between the valve rod and the valve cover through the lower seal seat; the lower seal seat is installed in the valve cover through threads; the upper part of the filler is provided with an outer taper surface which is contacted with the inner taper surface of the upper seal seat in a matching way; and the bellevill spring is arranged between the upper plane of the upper seal seat and the valve cover. After the filler is abraded, the lower seal seat moves upwards in the screw-thread fit clearance range under the medium pressure, simultaneously, the downward thrust of the bellevill spring automatically compensates the abrasion of the filler, and the valve has good sealing performance and is especially applicable to the high-pressure medium working condition.

Description

High pressure selfsealings filler stop valve
Technical field
The utility model relates to a kind of valve, particularly about a kind of stop valve.
Background technique
Stop valve generally is made up of valve body, flap, valve rod, valve gap, Stem Mut, transmission handwheel and Sealing and assembling set, between valve rod and the valve gap by packing box seal, its subject matter is that stuffing box is easy to wear in the valve rod opening-closing process, makes between valve rod and the valve gap to leak.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, and a kind of high pressure selfsealings filler stop valve of good seal performance is provided.
The technical solution of the utility model comprises valve body, flap, valve rod, valve gap, Stem Mut, transmission handwheel and Sealing and assembling set are formed, mainly be to adopt the sealing of selfsealings filler device between valve rod and the valve gap, this selfsealings filler device is by bottom sealing socket, pressure ring, filler, upper seal support, the butterfly spring is formed, filler is installed on the pressure ring in the plane, pressure ring is installed between valve rod and the valve gap by bottom sealing socket, bottom sealing socket is installed in the valve gap by screw thread, filler top has the external conical shape face, this external conical shape face contacts with the inner conical face cooperation of upper seal support, is provided with the butterfly spring between the last plane of upper seal support and the valve gap.
In above technological scheme, the lower end surface of bottom sealing socket has the horn mouth shape.
The utility model compared with prior art beneficial effect is to adopt the sealing of selfsealings filler device between valve rod and valve gap, after filler is frayed, bottom sealing socket is upwards moving in its Screw Thread Fit Clearance scope under the pressure medium effect, the downward thrust of while butterfly spring, automatically the wearing and tearing of compensation filler, its good seal performance.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Embodiment
High pressure selfsealings filler stop valve as shown in Figure 1 comprises valve body 1, flap 2, valve rod 5, valve gap 14, Stem Mut 15, transmission handwheel 17 and Sealing and assembling set composition.Covering 4 by divided ring 3 and flap between valve rod 5 and the flap 2 fixedlys connected, valve body 1 is fixedlyed connected with sieve female 10 by stud bolt 9 with valve gap 14, flange gasket 7 in being provided with between the two, Stem Mut 15 is fixedly mounted on the valve gap 14 by Cock screw 16, and transmission handwheel 17 is installed on the valve rod 5 by plain cushion 18, hexagon nut 19.Adopt the sealing of selfsealings filler device between valve rod 5 and the valve gap 14, this selfsealings filler device is made up of bottom sealing socket 6, pressure ring 8, filler 11, upper seal support 12, butterfly spring 13, filler 11 is installed on the pressure ring 8 in the plane, pressure ring 8 is installed between valve rod 5 and the valve gap 14 by bottom sealing socket 6, bottom sealing socket 6 is installed in the valve gap 14 by screw thread, its lower end surface has the horn mouth shape, pressure action of medium is upwards passed bottom sealing socket 6 in the Screw Thread Fit Clearance scope on the horn mouth end face of bottom sealing socket 6 in the valve pocket.Filler 11 tops have the external conical shape face, and this external conical shape face contacts with the inner conical face cooperation of upper seal support 12, holds sealing tightly to valve rod 5 when making filler 11 pressurizeds.Be provided with butterfly spring 13 between the last plane of upper seal support 12 and the valve gap, when filler 11 is frayed, compress the sealing between itself and the valve rod 5 automatically.

Claims (2)

1. high pressure selfsealings filler stop valve, comprise valve body (1), flap (2), valve rod (5), valve gap (14), Stem Mut (15), transmission handwheel (17) and Sealing and assembling set are formed, it is characterized in that adopting between valve rod (5) and the valve gap (14) sealing of selfsealings filler device, this selfsealings filler device is by bottom sealing socket (6), pressure ring (8), filler (11), upper seal support (12), butterfly spring (13) is formed, filler (11) is installed in pressure ring (8) and goes up in the plane, pressure ring (8) is installed between valve rod (5) and the valve gap (14) by bottom sealing socket (6), bottom sealing socket (6) is installed in the valve gap (14) by screw thread, filler (11) top has the external conical shape face, this external conical shape face contacts with the inner conical face cooperation of upper seal support (12), is provided with butterfly spring (13) between the last plane of upper seal support (12) and the valve gap (14).
2. high pressure selfsealings filler stop valve according to claim 1 is characterized in that the lower end surface of bottom sealing socket (6) has the horn mouth shape.
CN2010200496339U 2010-01-08 2010-01-08 High-pressure self-sealing packing shutoff valve Expired - Fee Related CN201593614U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010200496339U CN201593614U (en) 2010-01-08 2010-01-08 High-pressure self-sealing packing shutoff valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010200496339U CN201593614U (en) 2010-01-08 2010-01-08 High-pressure self-sealing packing shutoff valve

Publications (1)

Publication Number Publication Date
CN201593614U true CN201593614U (en) 2010-09-29

Family

ID=42775681

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010200496339U Expired - Fee Related CN201593614U (en) 2010-01-08 2010-01-08 High-pressure self-sealing packing shutoff valve

Country Status (1)

Country Link
CN (1) CN201593614U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748484A (en) * 2012-07-23 2012-10-24 岳阳筑盛阀门管道有限责任公司 Angle type drain valve
CN103267166A (en) * 2013-05-23 2013-08-28 中亚阀门有限公司 Piston-type zero leakage gate valve
CN104913109A (en) * 2015-05-25 2015-09-16 蚌埠南自仪表有限公司 One-way valve with elastic sealing structure
CN106989190A (en) * 2016-01-21 2017-07-28 浙江加耐特阀杆有限公司 A kind of processing technology of valve rod and the valve rod

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748484A (en) * 2012-07-23 2012-10-24 岳阳筑盛阀门管道有限责任公司 Angle type drain valve
CN103267166A (en) * 2013-05-23 2013-08-28 中亚阀门有限公司 Piston-type zero leakage gate valve
CN103267166B (en) * 2013-05-23 2015-10-21 中亚阀门有限公司 Piston-type zero leakage gate valve
CN104913109A (en) * 2015-05-25 2015-09-16 蚌埠南自仪表有限公司 One-way valve with elastic sealing structure
CN106989190A (en) * 2016-01-21 2017-07-28 浙江加耐特阀杆有限公司 A kind of processing technology of valve rod and the valve rod

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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

Granted publication date: 20100929

Termination date: 20150108

EXPY Termination of patent right or utility model