CN103511643A - Double-eccentricity all-metal seal butterfly valve - Google Patents

Double-eccentricity all-metal seal butterfly valve Download PDF

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CN103511643A
CN103511643A CN201210517070.5A CN201210517070A CN103511643A CN 103511643 A CN103511643 A CN 103511643A CN 201210517070 A CN201210517070 A CN 201210517070A CN 103511643 A CN103511643 A CN 103511643A
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valve
gland
valve body
metal
metal seal
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CN103511643B (en
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张立勇
撒德深
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Ningjin Meihua Industrial Co Ltd
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Ningjin Meihua Industrial Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • F16K1/2266—Shaping or arrangements of the sealing the sealing being arranged on the valve seat and being forced into sealing contact with the valve member by a spring or a spring-like member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

一种双偏心全金属密封蝶阀，包括阀体，阀板，阀轴，碟簧式金属阀座，金属弹性O形环和压盖；所述阀体和阀板为偏心设置，所述压盖将碟簧式金属阀座固定在阀体上，且在碟簧式金属阀座与阀体之间设置有金属弹性O形环。本发明采用碟簧式金属阀座，增加了单位尺寸内的延伸长度，从而增加了阀座在工作时的弹性变形，减少了其塑性变形；同时金属弹性O形环在阀门反向工作时可吸收一部分因介质压力而造成的阀座变形，大大的延长了阀门的使用寿命。

Figure 201210517070

A double eccentric all-metal sealed butterfly valve, including a valve body, a valve plate, a valve shaft, a disc spring metal valve seat, a metal elastic O-ring and a gland; the valve body and the valve plate are eccentrically arranged, and the gland The disc spring metal valve seat is fixed on the valve body, and a metal elastic O-ring is arranged between the disc spring metal valve seat and the valve body. The present invention adopts the disc spring type metal valve seat, which increases the extension length of the unit size, thereby increasing the elastic deformation of the valve seat during work and reducing its plastic deformation; at the same time, the metal elastic O-ring can be used when the valve works in reverse. Absorb part of the deformation of the valve seat caused by medium pressure, which greatly prolongs the service life of the valve.

Figure 201210517070

Description

一种双偏心全金属密封蝶阀A double eccentric full metal seal butterfly valve

技术领域technical field

本发明涉及阀门技术领域，特别是涉及一种适用于高温、高压、强腐蚀液体介质输送管道上的双偏心全金属密封蝶阀。The invention relates to the technical field of valves, in particular to a double-eccentric all-metal sealing butterfly valve suitable for high-temperature, high-pressure, and strongly corrosive liquid medium delivery pipelines.

背景技术Background technique

双偏心蝶阀也叫作高性能蝶阀，主要适用于水厂、电厂、钢厂冶炼、化工、水源泉工程、环境设施建设等系统排水用,尤其适用于水道管路上,作为调节和截流设备使用。和中线蝶阀相比，双偏心蝶阀更耐高压，寿命更长，稳定性好。和其它阀门相比，口径越大材料越轻，成本就更底。但是由于其材质的限制，在高温、高压、强腐蚀液体介质输送领域的应用受到很大的限制。Double eccentric butterfly valves are also called high-performance butterfly valves. They are mainly used for water drainage in water plants, power plants, steel smelting, chemical engineering, water source engineering, and environmental facility construction. They are especially suitable for water pipelines as regulating and intercepting equipment. Compared with the centerline butterfly valve, the double eccentric butterfly valve is more resistant to high pressure, has a longer life and good stability. Compared with other valves, the larger the caliber, the lighter the material, and the lower the cost. However, due to the limitation of its material, its application in the field of high temperature, high pressure, and strong corrosive liquid medium transportation is greatly restricted.

以往在高温、高压、强腐蚀液体介质输送领域通常采用的金属密封蝶阀多为三偏心设计，在设计、加工、组装等各方面成本都非常高；阀座设计为多层金属薄片，每层采用用非金属材料间隔，才能实现高温、高压、强腐蚀液体的输送，且由于三偏心设计复杂，一旦发生泄露，则必须由专业人员进行维修，维修成本大，且三偏心蝶阀的制作费用昂贵，成本较高。In the past, the metal seal butterfly valves usually used in the field of high temperature, high pressure and strong corrosive liquid medium transportation are mostly triple eccentric design, and the cost in design, processing, assembly and other aspects is very high; the valve seat is designed as multi-layer metal sheets, and each layer is made of The transportation of high temperature, high pressure and strong corrosive liquids can only be realized by using non-metallic materials for intervals, and because of the complicated design of the triple eccentricity, once a leak occurs, it must be repaired by professionals, and the maintenance cost is high, and the production cost of the triple eccentric butterfly valve is expensive. higher cost.

发明内容Contents of the invention

为解决上述技术问题，本发明提供了一种适用于高温、高压、强腐蚀液体介质输送管道上的双偏心全金属密封蝶阀。In order to solve the above-mentioned technical problems, the present invention provides a double-eccentric all-metal sealing butterfly valve suitable for high-temperature, high-pressure, and strongly corrosive liquid medium delivery pipelines.

为实现上述发明目的，本发明提供的技术方案为：In order to realize the above-mentioned purpose of the invention, the technical scheme provided by the invention is:

一种双偏心全金属密封蝶阀，包括阀体，阀板，阀轴，碟簧式金属阀座，金属弹性O形环和压盖；所述阀体和阀板为偏心设置，所述压盖将碟簧式金属阀座固定在阀体上，且在碟簧式金属阀座与阀体之间设置有金属弹性O形环。A double eccentric all-metal sealed butterfly valve, including a valve body, a valve plate, a valve shaft, a disc spring metal valve seat, a metal elastic O-ring and a gland; the valve body and the valve plate are eccentrically arranged, and the gland The disc spring metal valve seat is fixed on the valve body, and a metal elastic O-ring is arranged between the disc spring metal valve seat and the valve body.

进一步地，所述碟簧式金属阀座包括一体式设置的固定部、凹陷部和凸起部，所述固定部固定在阀体和压盖之间，所述凹陷部与金属弹性O形环配合设置，所述凸起部与凹陷部相邻，且紧贴阀板设置。Further, the disc spring metal valve seat includes an integrated fixing part, a recessed part and a raised part, the fixing part is fixed between the valve body and the gland, and the recessed part and the metal elastic O-ring Cooperatingly arranged, the raised portion is adjacent to the recessed portion and is arranged in close contact with the valve plate.

进一步地，所述固定部与阀体和压盖之间设置有密封垫。Further, a gasket is provided between the fixing part, the valve body and the gland.

进一步地，所述压盖上还设置有压盖固定装置，所述压盖固定装置将压盖固定在阀体上。Further, the gland is also provided with a gland fixing device, and the gland fixing device fixes the gland on the valve body.

进一步地，所述阀轴上设置有轴承套，所述轴承套上部设置有轴密封装置。Further, a bearing sleeve is provided on the valve shaft, and a shaft sealing device is provided on the upper part of the bearing sleeve.

进一步地，所述阀板通过销钉固定在阀轴上。Further, the valve plate is fixed on the valve shaft by pins.

进一步地，还包括压兰，所述压兰通过标准件固定在阀体上。Further, a pressure flange is also included, and the pressure flange is fixed on the valve body through standard parts.

进一步地，所述阀轴上部固装有驱动装置连接件。Further, the upper part of the valve shaft is fixed with a drive device connecting piece.

采用上述技术方案，本发明的有益效果有：Adopt above-mentioned technical scheme, the beneficial effect of the present invention has:

（1）本发明所提供的双偏心全金属密封蝶阀成本低、使用寿命长、维修方便。(1) The double eccentric all-metal sealing butterfly valve provided by the present invention has low cost, long service life and convenient maintenance.

（2）本发明采用碟簧式金属阀座，增加了单位尺寸内的延伸长度，从而增加了阀座在工作时的弹性变形，减少了其塑性变形；同时金属弹性O形环在阀门反向工作时可吸收一部分因介质压力而造成的阀座变形，大大的延长了阀门的使用寿命。(2) The present invention adopts the disc spring metal valve seat, which increases the extension length per unit size, thereby increasing the elastic deformation of the valve seat during work and reducing its plastic deformation; at the same time, the metal elastic O-ring is reversed in the valve When working, it can absorb part of the valve seat deformation caused by the medium pressure, which greatly prolongs the service life of the valve.

附图说明Description of drawings

图1为本发明结构示意图；Fig. 1 is a structural representation of the present invention;

图2为图1中A部细节图。Fig. 2 is a detailed view of part A in Fig. 1 .

其中：1阀体，2阀板，3阀轴，4碟簧式金属阀座，41固定部，42凹陷部，43突起部，5金属弹性O形环，6压盖，7密封垫，8压盖固定装置，9轴承套，10轴密封装置，11销钉，12标准件，13驱动装置连接件，14压兰，15压兰套。Among them: 1 valve body, 2 valve plate, 3 valve shaft, 4 disc spring metal valve seat, 41 fixed part, 42 recessed part, 43 protruding part, 5 metal elastic O-ring, 6 gland, 7 gasket, 8 Gland fixing device, 9 bearing sleeve, 10 shaft sealing device, 11 pin, 12 standard part, 13 drive device connection piece, 14 pressure flange, 15 pressure flange sleeve.

具体实施方式Detailed ways

为了使本发明的目的、技术方案及优点更加清楚明白，下面结合附图和实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

图1为本发明结构示意图，如图1所示，一种双偏心全金属密封蝶阀，包括阀体1，阀板2，阀轴3，碟簧式金属阀座4，金属弹性O形环5和压盖6；所述阀体5和阀板4为偏心设置，所述压盖9将碟簧式金属阀座7固定在阀体4上，且在碟簧式金属阀座7与阀体4之间设置有金属弹性O形环5。所述阀轴3上设置有轴承套9，所述轴承套9上部设置有轴密封装置10。所述阀板2通过销钉11固定在阀轴3上。设置有压兰套15的压兰14通过标准件12固定在阀体1上，且阀轴3上部固装有驱动装置连接件13，用来与驱动装置连接实现阀门开闭。Fig. 1 is a schematic diagram of the structure of the present invention, as shown in Fig. 1, a double eccentric all-metal sealed butterfly valve, including a valve body 1, a valve plate 2, a valve shaft 3, a disc spring metal valve seat 4, and a metal elastic O-ring 5 and gland 6; the valve body 5 and valve plate 4 are eccentrically set, and the gland 9 fixes the disc spring metal valve seat 7 on the valve body 4, and the disc spring metal valve seat 7 and the valve body A metal elastic O-ring 5 is arranged between the 4. A bearing sleeve 9 is arranged on the valve shaft 3 , and a shaft sealing device 10 is arranged on the upper part of the bearing sleeve 9 . The valve plate 2 is fixed on the valve shaft 3 by pins 11 . The pressure flange 14 provided with the pressure flange sleeve 15 is fixed on the valve body 1 through the standard part 12, and the upper part of the valve shaft 3 is fixed with a drive device connector 13, which is used to connect with the drive device to realize valve opening and closing.

其中，碟簧式金属阀座4和金属弹性O形环5的安装细节如图2所示，所述碟簧式金属阀座4包括一体式设置的固定部41、凹陷部42和凸起部43，所述固定部41固定在阀体1和压盖6之间，所述凹陷部42与金属弹性O形环5配合设置，所述凸起部43与凹陷部42相邻，且紧贴阀板2设置。另外，所述固定部41与阀体1和压盖6之间设置有密封垫7。所述压盖6上还设置有压盖固定装置8，所述压盖固定装置8将压盖6固定在阀体1上。Among them, the installation details of the disc spring metal valve seat 4 and the metal elastic O-ring 5 are shown in Figure 2. The disc spring metal valve seat 4 includes a fixed part 41, a concave part 42 and a raised part integrally arranged. 43, the fixed part 41 is fixed between the valve body 1 and the gland 6, the recessed part 42 is set in cooperation with the metal elastic O-ring 5, and the raised part 43 is adjacent to the recessed part 42 and is in close contact with Valve plate 2 setting. In addition, a gasket 7 is provided between the fixing portion 41 , the valve body 1 and the gland 6 . A gland fixing device 8 is also provided on the gland 6 , and the gland fixing device 8 fixes the gland 6 on the valve body 1 .

本发明所提供的双偏心全金属密封蝶阀，在正向压力下工作时阀座随阀板的位移而移动，保证密封性能；在反向压力下工作时阀座在压力的作用下随阀板的位移而移动，同时金属弹性O形环吸收部分阀座变形量保证阀座不产生塑性变形从而确保密封性能。采用碟簧式金属阀座，增加了单位尺寸内的延伸长度，从而增加了阀座在工作时的弹性变形，减少了其塑性变形；同时金属弹性O形环在阀门反向工作时可吸收一部分因介质压力而造成的阀座变形，大大的延长了阀门的使用寿命。The double eccentric full metal seal butterfly valve provided by the present invention, when working under positive pressure, the valve seat moves with the displacement of the valve plate to ensure the sealing performance; when working under reverse pressure, the valve seat moves with the valve plate under the action of pressure At the same time, the metal elastic O-ring absorbs part of the deformation of the valve seat to ensure that the valve seat does not produce plastic deformation to ensure the sealing performance. Disc spring metal valve seat is used to increase the extension length per unit size, thereby increasing the elastic deformation of the valve seat during operation and reducing its plastic deformation; at the same time, the metal elastic O-ring can absorb part of the valve when it works in reverse The deformation of the valve seat due to medium pressure greatly prolongs the service life of the valve.

本发明所提供的双偏心全金属密封蝶阀，采用全金属的部件设置，使得本发明不仅可以应用于常规流体的输送，还能满足高温、高压、强腐蚀液体介质输送对阀门的要求，且双偏心蝶阀设计结构简单，如果出现部件损坏，不需要专业的工作人员到场维修，任何人可以进行阀门的维修和维护，且全金属设计，部件损坏率也将大大降低，且加工成本远远低于三偏心蝶阀。The double eccentric all-metal sealed butterfly valve provided by the present invention adopts all-metal components, so that the present invention can not only be applied to the transportation of conventional fluids, but also meet the requirements of the valve for high-temperature, high-pressure, and strongly corrosive liquid medium transportation. The design and structure of the eccentric butterfly valve is simple. If a part is damaged, no professional staff is required to repair it on site. Anyone can repair and maintain the valve. With an all-metal design, the damage rate of parts will be greatly reduced, and the processing cost is far lower than Triple eccentric butterfly valve.

以上所述实施例仅表达了本发明的实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express the implementation manner of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (8)

1. two eccentric full metal seal butterfly valves, is characterized in that: comprise valve body, valve plate, valve shaft, disk spring type metal seat valve, metallic elastic O shape ring and gland; Described valve body and valve plate are set for the eccentric, and described gland is fixed on disk spring type metal seat valve on valve body, and between disk spring type metal seat valve and valve body, are provided with metallic elastic O shape ring.
2. according to claim 1 pair of eccentric full metal seal butterfly valve, it is characterized in that: described disk spring type metal seat valve comprises fixing part, depressed part and the lug boss that integral type arranges, described fixing part is fixed between valve body and gland, described depressed part and metallic elastic O shape ring are equipped with, described lug boss and depressed part are adjacent, and are close to valve plate setting.
3. according to claim 2 pair of eccentric full metal seal butterfly valve, is characterized in that: between described fixing part and valve body and gland, be respectively arranged with sealing gasket.
4. according to claim 2 pair of eccentric full metal seal butterfly valve, is characterized in that: on described gland, be also provided with gland fixing device, described gland fixing device is fixed on gland on valve body.
5. according to claim 2 pair of eccentric full metal seal butterfly valve, is characterized in that: on described valve shaft, be provided with bearing housing, described bearing housing top is provided with shaft sealer.
6. according to claim 2 pair of eccentric full metal seal butterfly valve, is characterized in that: described valve plate is fixed by a pin on valve shaft.
7. according to claim 2 pair of eccentric full metal seal butterfly valve, is characterized in that: also comprise differential, described differential is fixed on valve body by standard piece.
8. according to the two eccentric full metal seal butterfly valves described in claim 2 or 7, it is characterized in that: described valve shaft top is fixed with drive unit link.
CN201210517070.5A 2012-12-05 2012-12-05 A kind of two eccentric full metal seal butterfly valve Expired - Fee Related CN103511643B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235395A (en) * 2014-07-11 2014-12-24 超阀精密有限公司 composite pressure sealing valve seat
CN105443777A (en) * 2016-02-01 2016-03-30 无锡智能自控工程股份有限公司 Memory alloy sealed valve seat structure and dual-centrifugal butterfly valve with same
CN114413005A (en) * 2022-01-22 2022-04-29 开维喜阀门集团有限公司 Double-eccentric butterfly valve and manufacturing method of valve body sealing ring thereof

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US4194749A (en) * 1977-07-26 1980-03-25 Applications Mecaniques Et Robinetterie Industrielle Sealing ring
CN101644338A (en) * 2008-08-06 2010-02-10 株式会社开滋Sct Pressure control butterfly valve
CN203098895U (en) * 2012-12-05 2013-07-31 宁津美华工业有限公司 Double-eccentric all-metal seal butterfly valve

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194749A (en) * 1977-07-26 1980-03-25 Applications Mecaniques Et Robinetterie Industrielle Sealing ring
CN101644338A (en) * 2008-08-06 2010-02-10 株式会社开滋Sct Pressure control butterfly valve
CN203098895U (en) * 2012-12-05 2013-07-31 宁津美华工业有限公司 Double-eccentric all-metal seal butterfly valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235395A (en) * 2014-07-11 2014-12-24 超阀精密有限公司 composite pressure sealing valve seat
CN105443777A (en) * 2016-02-01 2016-03-30 无锡智能自控工程股份有限公司 Memory alloy sealed valve seat structure and dual-centrifugal butterfly valve with same
CN114413005A (en) * 2022-01-22 2022-04-29 开维喜阀门集团有限公司 Double-eccentric butterfly valve and manufacturing method of valve body sealing ring thereof
CN114413005B (en) * 2022-01-22 2024-04-16 开维喜阀门集团有限公司 Double-eccentric butterfly valve and manufacturing method of valve body sealing ring thereof

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