WO2012003778A1 - 一种波纹管密封组件及带有该波纹管密封组件的波纹管阀门 - Google Patents

一种波纹管密封组件及带有该波纹管密封组件的波纹管阀门 Download PDF

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Publication number
WO2012003778A1
WO2012003778A1 PCT/CN2011/076619 CN2011076619W WO2012003778A1 WO 2012003778 A1 WO2012003778 A1 WO 2012003778A1 CN 2011076619 W CN2011076619 W CN 2011076619W WO 2012003778 A1 WO2012003778 A1 WO 2012003778A1
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WO
WIPO (PCT)
Prior art keywords
bellows
valve
seat
fixed
corrugated pipe
Prior art date
Application number
PCT/CN2011/076619
Other languages
English (en)
French (fr)
Inventor
程兴炎
Original Assignee
浙江万龙机械有限公司
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 浙江万龙机械有限公司 filed Critical 浙江万龙机械有限公司
Priority to AU2011276864A priority Critical patent/AU2011276864A1/en
Priority to RU2012137053/06A priority patent/RU2594390C2/ru
Priority to CA2780551A priority patent/CA2780551C/en
Priority to BR112012012756-0A priority patent/BR112012012756B1/pt
Priority to EP11803132.7A priority patent/EP2559928A4/en
Publication of WO2012003778A1 publication Critical patent/WO2012003778A1/zh
Priority to US13/466,093 priority patent/US8702057B2/en

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Classifications

    • 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
    • F16K1/02—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 screw-spindle
    • F16K1/04—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 screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube

Definitions

  • the invention relates to a bellows seal assembly and a bellows valve with the bellows seal assembly, which is mainly suitable for occasions where the valve has a height limitation after installation.
  • Prior art bellows valves include valve bodies, bonnets, stuffing boxes, bellows seal assemblies, packings, valve stems, and flaps.
  • a bellows seal assembly is disposed on the valve stem of the valve body, and the bellows seal assembly includes a bellows. One end of the bellows is fixed to the valve stem, and the other end is fixed with a stuffing box.
  • the bellows seal assembly in order to increase the sealing and service life, the bellows seal assembly does not use a single bellows structure, but a two-stage bellows structure, which is to separate the two bellows.
  • the ring welding is connected in series, that is, one end of the front bellows is welded and fixed to the stuffing box 4', and the other end is welded and fixed to the spacer 3'; one end of the rear bellows 2' is welded and fixed to the spacer 3', and the other end It is welded and fixed to the lower bellows seat 5', thus forming a bellows seal assembly.
  • the stuffing box of the valve is welded to the upper opening of the valve cover in the valve to form an upper seal, and the lower bellows seat 5' in the bellows assembly is welded with the valve stem to form a lower seal.
  • the bellows seal assembly thus designed has a structure in which the two-stage bellows are connected in series, the structure is long, the neck of the valve cover must be lengthened, and the valve stem must be lengthened, so that the material cost is increased on the one hand, On the one hand, the length of the entire valve is lengthened, and the stroke of the valve switch is also lengthened, which is disadvantageous for some places where there is a height restriction.
  • the technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a bellows seal assembly with reasonable structural design, material cost saving, and shortening the length of the bellows valve, and the bellows seal assembly.
  • Bellows valve The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a bellows seal assembly with reasonable structural design, material cost saving, and shortening the length of the bellows valve, and the bellows seal assembly.
  • a bellows seal assembly comprising: an inner bellows, an outer bellows, a hollow upper bellows seat, a hollow lower bellows seat and a hollow The second lower bellows seat; one end of the inner bellows is fixed to the upper bellows seat, and the other end is fixed to the lower bellows seat; one end of the outer bellows is fixed to the upper bellows seat, and the other end is connected to the lower bellows
  • the seat is fixed; the outer bellows is set outside the inner bellows; the lower bellows seat is set outside the second bellows seat.
  • the technical solution adopted by the present invention to solve the above technical problems further includes a bellows valve including a valve body, a valve cover, a stuffing box, a packing, a valve stem and a valve flap; the valve cover is fixed by a bolt and a valve body The valve stem is connected to the valve disc; the stuffing box is set on the valve stem, the stuffing box and the valve cover are fixed, and the packing is filled between the stuffing box and the valve stem; the flow path is opened on the valve body, and the valve is provided on the flow path.
  • the valve disc is matched with the valve mouth; and the utility model further comprises: the bellows seal assembly, the inner bellows, the outer bellows, the upper bellows seat, the lower bellows seat and the second lower bellows seat They are all set on the valve stem, the lower bellows seat is fixed with the valve cover, the second lower bellows seat is fixed with the valve stem, and the upper bellows seat is in active engagement with the valve stem.
  • the material cost is saved, on the other hand, the length of the entire valve can be shortened, and the stroke of the valve switch is also shortened.
  • the stuffing box and the valve cover of the present invention are integrated into one body and integrally formed. Reduced assembly process and reduced production costs.
  • the No. 1 lower bellows seat of the present invention is located at the lower opening of the valve cover to form a seal.
  • the upper bellows seat of the present invention is set on the valve stem, and the upper bellows seat and the valve stem can move relative to each other. Thereby, the technical solution of the present invention is more effective.
  • the upper bellows seat and the valve stem of the present invention can move in the same direction. Thereby, the technical solution of the present invention is more effective.
  • the invention has the following obvious effects: 1.
  • the structure design is reasonable; 2.
  • the material cost is saved, on the other hand, the length of the whole valve is shortened, and the stroke of the valve switch is also shortened, It is very advantageous to have a height limit.
  • Fig. 1 is a structural schematic view showing the connection of a front bellows and a rear bellows of a prior art bellows valve.
  • Figure 2 is a schematic view showing the structure of a bellows valve using the bellows assembly shown in Figure 1.
  • FIG. 3 is a schematic structural view of a bellows valve according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a bellows seal assembly according to an embodiment of the present invention.
  • the bellows valve of the embodiment of the present invention includes a valve body 8, a valve cover 6, a bellows seal assembly, a stuffing box 9, a packing 10, a valve stem 7, and a valve flap 11.
  • valve cover 6 is fixedly connected to the valve body 8 by bolts.
  • a flow passage 15 is formed in the valve body 8, and a flap 13 is provided on the flow passage 15.
  • the valve stem 7 is connected to the valve flap 11 and the other end is connected to the hand wheel 14.
  • the flap 11 can be driven by the valve stem 7 to open and close the flap 13.
  • the stuffing box 4 is set on the valve stem 7, and the stuffing box 4 and the valve cover 6 are fixed.
  • the stuffing box 4 and the valve cover 6 are integrally formed in one piece, which reduces the assembly process and reduces the production cost.
  • a packing 10 is filled between the stuffing box 4 and the valve stem 7.
  • the bellows seal assembly of the embodiment of the invention comprises a second lower bellows seat 1, a lower lower bellows seat 2, an inner bellows 3, an outer bellows 4 and an upper bellows seat 5.
  • the inner end of the inner bellows is welded and fixed to the upper bellows seat 5, and the other end is welded and fixed to the lower bellows seat 1.
  • One end of the outer bellows 4 is welded and fixed to the upper bellows seat 5, and the other end is welded and fixed to the lower bellows seat 2.
  • the No. 1 lower bellows seat 2 is set outside the No. 2 lower bellows seat.
  • the outer bellows 4 is set outside the inner bellows 3, and the two bellows are connected in parallel to form a parallel bellows assembly.
  • No. 2 lower bellows seat 1, No. 1 lower bellows seat 2, inner bellows 3, outer bellows 4 and upper bellows seat 5 are hollow structures, No. 2 lower bellows seat 1, No. 1 lower bellows seat 2.
  • the inner bellows 3, the outer bellows 4 and the upper bellows seat 5 are fitted on the valve stem 7.
  • the No. 1 lower bellows seat 2 is welded and fixed to the bonnet 6 and is located at the lower opening of the bonnet 6, forming a seal.
  • the second lower bellows seat 1 is welded and fixed on the valve stem 7 to form a seal.
  • the upper bellows seat 5 is in active engagement with the valve stem 7, i.e., the upper bellows seat 5 is actively fitted over the valve stem 7, and the upper bellows seat 5 and the stem 7 are relatively movable.
  • the valve stem 7 moves upward
  • the lower bellows seat 1 is moved upward
  • the lower bellows seat 1 drives the inner bellows 3 to compress
  • the inner bellows 3 drives the upper bellows seat 5 to move upward
  • the upper bellows seat 5 drives the outer bellows 4 to stretch; in the process, the upper bellows seat 5 moves in the same direction as the valve stem 7, but the moving distance is different.
  • the bellows seal assembly of the embodiment adopts a structure in which two bellows are connected in parallel, and each bellows forms a seal, which changes the structure of the two bellows in series in the prior art, and the bellows seal assembly itself is shortened and matched with the bellows seal assembly.
  • the neck of the bonnet 6 is also shortened, and the valve stem 7 is also shortened, thus saving material costs on the one hand, shortening the length of the entire valve on the other hand, and shortening the stroke of the valve switch, for some places where there is a height limitation.
  • Very advantageous such as a valve installed in a high-limit position on the top surface of the floor, such as a valve installed through a pipe below the stairs.
  • the valve body 8 is generally used: carbon steel WCB, A105, stainless steel 304 and other materials;
  • the valve disc 11 is generally made of: carbon steel 1025, stainless steel 304 and other materials;
  • Valve stem 7 is generally used: stainless steel 304, 316, 2Crl3, lCrl3 and other materials;
  • the bonnet 6 is generally used: carbon steel WCB, A105, stainless steel 304 and other materials;
  • Bellows are generally made of stainless steel 304, 316 and other materials.
  • specific embodiments described in the present specification may have zeros, shapes of components, names taken, and the like. Equivalent or simple changes made to the structures, features and principles of the present invention are included in the scope of the invention.
  • the present invention can be applied to industrial production, and therefore, it has industrial applicability.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Diaphragms And Bellows (AREA)
  • Valve Housings (AREA)

Abstract

一种波纹管密封组件及带有该波纹管密封组件的波纹管阀门，其中的波纹管密封组件包括内波纹管（3）、外波纹管（4）、上波纹管座（5）、第一下波纹管座（2）和第二下波纹管座（1）；内波纹管（3）一端与上波纹管座（5）固定，另一端与第二下波纹管座（1）固定；外波纹管（4）的一端与上波纹管座（5）固定，另一端与第一下波纹管座（2）固定；外波纹管（4）套装在内波纹管（3）外。该波纹管密封组件和波纹管阀门结构设计合理，节约了材料成本，并且使整个阀门的长度缩短，阀门开关的行程缩短，用于有高度限制的地方比较有利。

Description

说 明 书 一种波纹管密封组件及带有该波纹管密封组件的波纹管阀门
技术领域
本发明涉及一种波纹管密封组件及带有该波纹管密封组件的波纹管阀门， 它主要适用于阀门安装后具有高度限制的场合。
背景技术
现有技术的波纹管阀门包括阀体、 阀盖、 填料函、 波纹管密封组件、 填料、 阀杆和阀瓣。 在阀体内的那段阀杆上套装有波纹管密封组件， 波纹管密封组件 包括波纹管，波纹管的一端与阀杆固定，另一端与填料函固定。参见图 1和图 2， 为了增加密封性和使用寿命， 波纹管密封组件并不采用单根波纹管的结构， 而 是采用两段波纹管的结构， 这种结构是将两段波纹管通过隔环焊接串联在一起 的， 即： 前波纹管 Γ的一端与填料函 4'焊接固定， 另一端与隔环 3'焊接固定； 后 波纹管 2'的一端与隔环 3'焊接固定， 另一端与下波纹管座 5'焊接固定， 这样组成 了一个波纹管密封组件。 而阀门的填料函与阀门中的阀盖上孔口焊接在一起， 形成上密封， 波纹管组件中的下波纹管座 5'与阀杆焊接在一起， 形成下密封。
这样设计的波纹管密封组件， 由于是两段波纹管依次串联的结构， 结构较 长， 与之配套的阀盖颈部必须加长， 阀杆也必须加长， 这样， 一方面增加了材 料成本， 另一方面使整个阀门的长度加长， 阀门开关的行程也加长， 对一些用 于有高度限制的地方是很不利的。
技术问题
本发明所要解决的技术问题是克服现有技术中所存在的上述不足， 而提供 一种结构设计合理、 节约材料成本、 可以缩短波纹管阀门长度的波纹管密封组 件及带有该波纹管密封组件的波纹管阀门。
技术解决方案
本发明解决上述技术问题所采用的技术方案是： 一种波纹管密封组件， 其 特征在于： 包括内波纹管、 外波纹管、 中空的上波纹管座、 中空的一号下波纹 管座和中空的二号下波纹管座； 内波纹管一端与上波纹管座固定， 另一端与二 号下波纹管座固定； 外波纹管的一端与上波纹管座固定， 另一端与一号下波纹 管座固定； 外波纹管套装在内波纹管外； 一号下波纹管座套装在二号下波纹管 座外。 一方面节约了材料成本， 另一方面可以使整个阀门的长度缩短， 阀门开 关的行程也缩短。 说 明 书 本发明解决上述技术问题所采用的技术方案还包括一种波纹管阀门， 该波 纹管阀门包括阀体、 阀盖、 填料函、 填料、 阀杆和阀瓣； 阀盖用螺栓与阀体固 定连接； 阀杆与阀瓣连接； 填料函套装在阀杆上， 填料函和阀盖固定， 在填料 函和阀杆之间填充有填料； 在阀体上开有流道， 流道上设置有瓣口， 阀瓣与瓣 口配合； 其特征在于： 还包括上述波纹管密封组件， 所述的内波纹管、 外波纹 管、 上波纹管座、 一号下波纹管座和二号下波纹管座均套装在阀杆上， 一号下 波纹管座与阀盖固定， 二号下波纹管座与阀杆固定， 上波纹管座与阀杆活动配 合。 一方面节约了材料成本， 另一方面可以整个阀门的长度缩短， 阀门开关的 行程也缩短。
本发明所述的填料函和阀盖合为一个整体， 一体成型。 减少了装配工艺， 生产成本降低。
本发明所述的一号下波纹管座位于阀盖的下孔口处， 形成密封。
本发明所述的上波纹管座活动套装在阀杆上， 上波纹管座和阀杆之间可相 对移动。 由此使得本发明的技术方案实施效果更好。
本发明所述的上波纹管座与阀杆之间可同方向移动。 由此使得本发明的技 术方案实施效果更好。
有益效果
本发明与现有技术相比， 具有以下明显效果： 1、 结构设计合理； 2、 一方 面节约了材料成本， 另一方面使整个阀门的长度缩短， 阀门开关的行程也缩短， 对一些用于有高度限制的地方是非常有利的。
附图说明
图 1为现有技术波纹管阀门前波纹管和后波纹管连接的结构示意图。
图 2为采用了图 1所示波纹管组件的波纹管阀门的结构示意图。
图 3为本发明实施例波纹管阀门的结构示意图。
图 4为本发明实施例波纹管密封组件的结构示意图。
本发明的实施方式
下面结合附图并通过实施例对本发明作进一步说明。
实施例：
参见图 3和图 4， 本发明实施例波纹管阀门包括阀体 8、 阀盖 6、 波纹管密 封组件、 填料函 9、 填料 10、 阀杆 7和阀瓣 11。
阀盖 6用螺栓与阀体 8固定连接。在阀体 8上开有流道 15， 流道 15上设置 有瓣口 13。 说 明 书 阀杆 7—端与阀瓣 11连接， 另一端与手轮 14连接。 阀瓣 11可被阀杆 7带 动而打开和关闭瓣口 13。
填料函 4套装在阀杆 7上， 填料函 4和阀盖 6固定， 在本发明中， 填料函 4 和阀盖 6合为一个整体， 一体成型， 这样减少了装配工艺， 生产成本降低。 在 填料函 4和阀杆 7之间填充有填料 10。
本发明实施例波纹管密封组件包括二号下波纹管座 1、 一号下波纹管座 2、 内波纹管 3、 外波纹管 4和上波纹管座 5。 内波纹管 3—端与上波纹管座 5焊接 固定， 另一端与二号下波纹管座 1焊接固定。外波纹管 4的一端与上波纹管座 5 焊接固定， 另一端与一号下波纹管座 2焊接固定。 一号下波纹管座 2套装在二 号下波纹管座 1外。 外波纹管 4套装在内波纹管 3外， 两根波纹管并联， 组成 了一个并联波纹管组件。
二号下波纹管座 1、 一号下波纹管座 2、 内波纹管 3、 外波纹管 4和上波纹 管座 5均为中空结构， 二号下波纹管座 1、 一号下波纹管座 2、 内波纹管 3、 外 波纹管 4和上波纹管座 5套装在阀杆 7上。一号下波纹管座 2焊接固定在阀盖 6 上， 且位于阀盖 6的下孔口处， 形成密封。 二号下波纹管座 1焊接固定在阀杆 7 上， 形成密封。 上波纹管座 5与阀杆 7活动配合， 即上波纹管座 5活动套装在 阀杆 7上， 上波纹管座 5和阀杆 7可相对移动。 当阀杆 7向上移动时， 带动二 号下波纹管座 1向上移动， 二号下波纹管座 1带动内波纹管 3压缩， 内波纹管 3 带动上波纹管座 5向上移动， 上波纹管座 5带动外波纹管 4拉伸； 此过程中， 上波纹管座 5与阀杆 7同方向移动， 但移动距离不同。
本实施例的波纹管密封组件采用两根波纹管并联的结构， 每根波纹管均形 成一个密封， 改变了现有技术两根波纹管串联的结构， 波纹管密封组件本身缩 短， 与之配套的阀盖 6颈部也缩短， 阀杆 7也缩短， 这样， 一方面节约了材料 成本， 另一方面使整个阀门的长度缩短， 阀门开关的行程也缩短， 对一些用于 有高度限制的地方是非常有利的， 比如安装在楼层顶面的管道这种限高的位置 的阀门， 再比如通过楼梯下面的管道安装的阀门。
阀体 8—般采用： 碳钢 WCB、 A105, 不锈钢 304等材料；
阀瓣 11一般采用： 碳钢 1025， 不锈钢 304等材料；
阀杆 7—般采用： 不锈钢 304、 316、 2Crl3、 lCrl3等材料；
阀盖 6—般采用： 碳钢 WCB、 A105, 不锈钢 304等材料；
波纹管一般采用： 不锈钢 304、 316等材料。 说 明 书 此外， 需要说明的是， 本说明书中所描述的具体实施例， 其零、 部件的形 状、 所取名称等可以不同。 凡依本发明专利构思所述的构造、 特征及原理所做 的等效或简单变化， 均包括于本发明专利的保护范围内。
工业实用性
本发明的可以应用于工业化生产， 因此， 其具有产业上的可利用性。

Claims

权 利 要 求 书
1、 一种波纹管密封组件， 其特征在于： 包括内波纹管、 外波纹管、 中空的上波纹管座、 中空的一号下波纹管座和中空的二号下波纹管座； 内波纹管一端与上波纹管座固定， 另一端 与二号下波纹管座固定； 外波纹管的一端与上波纹管座固定， 另一端与一号下波纹管座固定; 外波纹管套装在内波纹管外， 一号下波纹管座活动套装在二号下波纹管座外， 两根波纹管并 联， 组成一个并联的波纹管组件。
2、 一种波纹管阀门， 包括阀体、 阀盖、 填料函、 填料、 阀杆和阀瓣； 阀盖用螺栓与阀体 固定连接； 阀杆与阀瓣连接； 填料函套装在阀杆上， 填料函和阀盖固定， 在填料函和阀杆之 间填充有填料； 在阀体上开有流道， 流道上设置有瓣口， 阀瓣与瓣口配合； 其特征在于： 还 包括权利要求 1所述的波纹管密封组件， 所述的内波纹管、 外波纹管、 上波纹管座、 一号下 波纹管座和二号下波纹管座均套装在阀杆上， 一号下波纹管座与阀盖固定， 二号下波纹管座 与阀杆固定， 上波纹管座与阀杆活动配合。
3、根据权利要求 2所述的波纹管阀门，其特征在于：所述的填料函和阀盖合为一个整体， 一体成型。
4、根据权利要求 2或 3所述的波纹管阀门， 其特征在于： 所述的一号下波纹管座位于阀 盖的下孔口处， 形成密封。
5、根据权利要求 2或 3所述的波纹管阀门， 其特征在于： 所述的上波纹管座活动套装在 阀杆上， 上波纹管座和阀杆之间可相对移动。
6、根据权利要求 5所述的波纹管阀门， 其特征在于： 所述的上波纹管座与阀杆之间可同 方向移动。
PCT/CN2011/076619 2010-07-05 2011-06-30 一种波纹管密封组件及带有该波纹管密封组件的波纹管阀门 WO2012003778A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2011276864A AU2011276864A1 (en) 2010-07-05 2011-06-30 Corrugated pipe sealing assembly and corrugated pipe valve having the same
RU2012137053/06A RU2594390C2 (ru) 2010-07-05 2011-06-30 Уплотняющая сборка из гофрированных труб и вентиль с этой уплотняющей сборкой
CA2780551A CA2780551C (en) 2010-07-05 2011-06-30 Corrugated pipe sealing assembly and corrugated pipe valve having the same
BR112012012756-0A BR112012012756B1 (pt) 2010-07-05 2011-06-30 conjunto de vedação de válvula de fole e válvula de fole compreendendo o mesmo
EP11803132.7A EP2559928A4 (en) 2010-07-05 2011-06-30 CORRUGATED TUBES JOINT ASSEMBLY AND CORRUGATED TUBES VALVE HAVING THE SAME
US13/466,093 US8702057B2 (en) 2010-07-05 2012-05-07 Bellows seal assembly and bellows valve equipped therewith

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CN201010218706.7 2010-07-05

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US8955825B2 (en) * 2013-03-18 2015-02-17 Wan-Rong Kung Leakage prevention device for a valve
CN103542120B (zh) * 2013-10-17 2016-04-27 浙江万龙机械有限公司 双波纹管阀门
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CN101893130A (zh) 2010-11-24
US8702057B2 (en) 2014-04-22
EP2559928A1 (en) 2013-02-20
EP2559928A4 (en) 2013-05-15
US20120217429A1 (en) 2012-08-30
CA2780551A1 (en) 2012-01-12
BR112012012756A2 (pt) 2016-09-06
RU2012137053A (ru) 2014-03-10
CN101893130B (zh) 2012-05-09
CA2780551C (en) 2015-02-17
RU2594390C2 (ru) 2016-08-20
AU2011276864A1 (en) 2012-05-31

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