CN203309137U - Y-shaped heat-insulating stop valve - Google Patents

Y-shaped heat-insulating stop valve Download PDF

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Publication number
CN203309137U
CN203309137U CN2013203566360U CN201320356636U CN203309137U CN 203309137 U CN203309137 U CN 203309137U CN 2013203566360 U CN2013203566360 U CN 2013203566360U CN 201320356636 U CN201320356636 U CN 201320356636U CN 203309137 U CN203309137 U CN 203309137U
Authority
CN
China
Prior art keywords
valve
flap
plug type
valve body
shaped heat
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
CN2013203566360U
Other languages
Chinese (zh)
Inventor
张坤万
贺乐全
袁俊峰
张建身
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.)
Huanqiu Valve Group Co Ltd
Original Assignee
Huanqiu Valve 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 Huanqiu Valve Group Co Ltd filed Critical Huanqiu Valve Group Co Ltd
Priority to CN2013203566360U priority Critical patent/CN203309137U/en
Application granted granted Critical
Publication of CN203309137U publication Critical patent/CN203309137U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a Y-shaped heat-insulating stop valve which comprises a valve body, a valve seat, a valve clack, a valve rod, a bracket and a handwheel, wherein heat-insulating jacket is welded between the inlet flange and the outlet flange of the valve body. The Y-shaped heat-insulating stop valve is mainly characterized in that the valve clack adopts a plunger piston-type valve clack which is a hollow cylinder; a sealing surface matched with the valve seat is formed on the lower end surface of the plunger piston-type valve clack; the excircle surface of the plunger piston-type valve clack is matched with a guide sleeve fixedly mounted in the middle cavity of the valve body in a dynamic sealing manner; the inner cavity of the plunger piston-type valve clack is communicated with a heat-insulating medium culvert pipe; the plunger piston-type valve clack is fixedly connected with the lower end of the valve rod through an upper end cover. The Y-shaped heat-insulating stop valve has the advantages that the thermal insulation performance of the middle cavity is improved; the valve rod is separated from media, so that the media can not crystallize on the valve rod; the opening and closing are light and convenient; the sealing performance of the middle cavity is reliable. The Y-shaped heat-insulating stop valve is suitable for working conditions in industries such as the petroleum industry, the chemical engineering industry and the pharmaceutical manufacturing industry where media are easy to crystallize, coke and freeze.

Description

Y type heat-preserving cut-off valve
Technical field
The utility model relates to valve field, particularly about a kind of stop valve.The medium operating mode that the utility model is applicable to the easy crystallizations of industry such as oil, chemical industry, metallurgy, pharmacy, coking, freezes.
Background technique
The general employing of existing heat-preserving cut-off valve welded insulation jacket between valve body two flanges, two steam or other thermal insulation medium connection mouth are set in insulation jacket side, bottom, prevents the sharp freezing of body cavity medium.Its major defect is that valve body lumen heat insulation effect is poor, and medium easily freezes or crystallization on the valve rod near the valve gap place, make the valve opening and closing weight, the sealability of cavity seal packing in impact.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, provides that a kind of keyings is light, lumen seals reliable Y type heat-preserving cut-off valve.
The technical solution of the utility model comprises valve body, valve seat, flap, valve rod, support, handwheel, at valve body, import and export between flange and weld insulation jacket, mainly that flap adopts the plug type flap, the plug type flap is hollow cylinder, plug type flap lower end surface is shaped with the sealing surface cooperatively interacted with valve seat, the periphery of plug type flap coordinates with the guide sleeve motive sealing that is fixedly mounted on the valve body lumen, its inner chamber is communicated with the thermal insulation medium culvert pipe, and the plug type flap is fixedly connected with the valve rod lower end by upper end cap.
In above technological scheme, plug type flap lower end surface is shaped with radially convex shoulder, and this radially is shaped with the sealing surface cooperatively interacted between the upper table surface of convex shoulder and guide sleeve lower end surface.
In above technological scheme, between guide sleeve and plug type flap periphery, be shaped with stuffing-box, stuffing box packing is installed in this stuffing-box.
In above technological scheme, fixed installation anti-rotation clamping plate on support.
The utility model has the advantages that flap adopts the plug type flap, thermal insulation medium injects the lumen of plug type flap, the guide sleeve of plug type flap excircle and valve body lumen movingly, improve valve body lumen thermal insulation property by valve rod and medium isolation, avoid medium crystallization on valve rod, have the characteristics such as light, that the lumen sealability is reliable that open and close.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Y type heat-preserving cut-off valve as shown in Figure 1, comprise valve body 1, valve seat, flap 2, valve rod 14, support, handwheel 13, at valve body 1, import and export welding insulation jacket 3 between flange, flap 2 adopts the plug type flap, the plug type flap is hollow cylinder, plug type flap lower end surface is shaped with the sealing surface cooperatively interacted with valve seat, the periphery of plug type flap coordinates with guide sleeve 4 motive sealings that are fixedly mounted on valve body 1 lumen, its inner chamber is communicated with thermal insulation medium culvert pipe 16, the plug type flap is fixedly connected with valve rod 14 lower ends by upper end cap 15, make valve rod 14 and valve body 1 bore seal isolation, avoided medium crystallization on valve rod 14, valve rod 14 upper ends are connected with handwheel 13 by Stem Mut 12, Stem Mut 12 is by bearing 10, axle sleeve 11 is rack-mount.
Plug type flap lower end surface is shaped with radially convex shoulder, and this radially is shaped with the sealing surface cooperatively interacted between the upper table surface of convex shoulder and guide sleeve 4 lower end surfaces, when flap 2 full-gear, increases the lumen sealing.
Between guide sleeve 4 and plug type flap periphery, be shaped with stuffing-box, stuffing box packing 6 is installed in this stuffing-box.Described stuffing box packing 6 is the woven graphite filler, between its lower end and the interior table top of guide sleeve 4, be provided with Packing seat 5, upper end is compressed and is installed by filler pressing sleeve 8, Gland 18, Gland 18 is arranged on valve body 1 by bolt, butterfly spring 17 is set between Gland 18 and bolt, the wearing and tearing of automatic compensation sealing filler 6.Guide sleeve 4 is contained in valve body 1 lumen by support pressure, establishes gasket seal 7 between guide sleeve 4 and valve body 1.
Fixed installation anti-rotation clamping plate 9 on support, 14 rotations of restriction valve rod.

Claims (5)

1. Y type heat-preserving cut-off valve, comprise valve body (1), valve seat, flap (2), valve rod (14), support, handwheel (13), at valve body (1), import and export between flange and weld insulation jacket (3), it is characterized in that flap (2) adopts the plug type flap, the plug type flap is hollow cylinder, plug type flap lower end surface is shaped with the sealing surface cooperatively interacted with valve seat, the periphery of plug type flap coordinates with guide sleeve (4) motive sealing that is fixedly mounted on valve body (1) lumen, its inner chamber is communicated with thermal insulation medium culvert pipe (16), the plug type flap is fixedly connected with valve rod (14) lower end by upper end cap (15).
2. Y type heat-preserving cut-off valve according to claim 1, is characterized in that plug type flap lower end surface is shaped with radially convex shoulder, and this radially is shaped with the sealing surface cooperatively interacted between the upper table surface of convex shoulder and guide sleeve (4) lower end surface.
3. Y type heat-preserving cut-off valve according to claim 1 and 2, is characterized in that being shaped with stuffing-box between guide sleeve (4) and plug type flap periphery, and stuffing box packing (6) is installed in this stuffing-box.
4. Y type heat-preserving cut-off valve according to claim 1 and 2, is characterized in that fixed installation anti-rotation clamping plate (9) on support.
5. Y type heat-preserving cut-off valve according to claim 3, is characterized in that fixed installation anti-rotation clamping plate (9) on support.
CN2013203566360U 2013-06-05 2013-06-05 Y-shaped heat-insulating stop valve Expired - Fee Related CN203309137U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203566360U CN203309137U (en) 2013-06-05 2013-06-05 Y-shaped heat-insulating stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203566360U CN203309137U (en) 2013-06-05 2013-06-05 Y-shaped heat-insulating stop valve

Publications (1)

Publication Number Publication Date
CN203309137U true CN203309137U (en) 2013-11-27

Family

ID=49615350

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203566360U Expired - Fee Related CN203309137U (en) 2013-06-05 2013-06-05 Y-shaped heat-insulating stop valve

Country Status (1)

Country Link
CN (1) CN203309137U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106969192A (en) * 2017-05-05 2017-07-21 安徽省屯溪高压阀门有限公司 A kind of jacket heat-preservation sampling valve
CN109084078A (en) * 2018-10-26 2018-12-25 吴忠中创自控阀有限公司 A kind of Y-shaped cut-off valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106969192A (en) * 2017-05-05 2017-07-21 安徽省屯溪高压阀门有限公司 A kind of jacket heat-preservation sampling valve
CN106969192B (en) * 2017-05-05 2023-03-31 安徽省屯溪高压阀门股份有限公司 Jacket heat preservation sampling valve
CN109084078A (en) * 2018-10-26 2018-12-25 吴忠中创自控阀有限公司 A kind of Y-shaped cut-off valve
CN109084078B (en) * 2018-10-26 2020-02-07 吴忠中创自控阀有限公司 Y-shaped stop 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: 20131127