WO2018054084A1 - 一种闸板阀阀座安装结构 - Google Patents

一种闸板阀阀座安装结构 Download PDF

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Publication number
WO2018054084A1
WO2018054084A1 PCT/CN2017/085853 CN2017085853W WO2018054084A1 WO 2018054084 A1 WO2018054084 A1 WO 2018054084A1 CN 2017085853 W CN2017085853 W CN 2017085853W WO 2018054084 A1 WO2018054084 A1 WO 2018054084A1
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Prior art keywords
valve seat
valve body
pull rod
mounting structure
nut
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PCT/CN2017/085853
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English (en)
French (fr)
Inventor
陈建朋
王剑英
杨建超
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成都乘风阀门有限责任公司
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Publication of WO2018054084A1 publication Critical patent/WO2018054084A1/zh

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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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details

Definitions

  • the utility model relates to the technical field of valves, in particular to a valve seat valve seat mounting structure.
  • the gate valve is one of the most commonly used shut-off valves and is primarily used to turn the media in the line on or off, and is not used to regulate media flow.
  • the range of pressures, temperatures and diameters used is very large, especially for medium and large diameter pipes.
  • the valve seat is a detachable surface part of the valve for supporting the fully closed position of the valve core and forming a sealing pair. In the installation of the gate valve, it is difficult to install the gate due to the allowable sealing ratio pressure. At present, there are many installation methods, but the operation is complicated.
  • the utility model aims to provide a valve seat valve seat installation structure, which has a simple structure and convenient operation.
  • a gate valve seat mounting structure includes a valve body, a valve seat, a tie rod, a pressure plate and a nut, wherein the valve seat is installed in the valve body, a tip end of the pull rod is provided with a shoulder, and the valve body has a medium passage
  • the head end of the pull rod penetrates into the valve body along the medium passage
  • the pull rod is parallel to the axis of the valve body and the medium passage
  • the inner wall of the valve seat is coaxially provided with an annular groove
  • the shoulder is caught in the annular groove a tail end of the pull rod is exposed outside the valve body
  • the pressure plate is sleeved on the pull rod
  • the screw The female presses the pressure plate on the outer end surface of the valve body, and the nut is screwed to the pull rod.
  • the outer diameter of the shoulder is smaller than the diameter of the medium passage.
  • a spring is mounted between the valve seat and the valve body.
  • drawbars are 2-4, and the drawbars are equally spaced in the medium passage.
  • a spring cavity is formed on one end surface of the valve seat.
  • the inner diameter of the valve seat is equal to the diameter of the medium passage.
  • the spring is a coil spring.
  • the spring has 12-36 springs, and the spring is disposed along the circumferential direction of the valve seat.
  • the utility model has the advantages of simple structure and low cost, and the valve seat is tightened by using a pull rod, which is convenient to be put into the shutter and improves the installation efficiency.
  • Figure 1 is a schematic view of the structure of the present invention
  • FIG. 2 is a schematic structural view of a middle tie rod of the present invention
  • Figure 3 is a schematic view showing the structure of the utility model in the gate valve
  • the valve seat mounting structure disclosed by the utility model comprises a valve body 10 , a valve seat 2 , a pull rod 4 , a pressure plate 5 and a nut 6 , and the valve seat 2 is installed in the valve body 10 , as shown in FIG. 2 .
  • the head end of the tie rod 4 is provided with a shoulder 8 having a medium passage 11 through which the head end of the tie rod 4 penetrates into the valve body 10 along the medium passage 11, the axis of the tie rod 4 and the valve body 10 and the medium passage 11.
  • the inner wall of the valve seat 2 is coaxially provided with an annular groove 7 , the shoulder 8 is caught in the annular groove 7 , the tail end of the pull rod 4 is exposed outside the valve body 10 , the pressure plate 5 is sleeved on the pull rod 4 , and the nut 6 is pressed 5 is pressed against the outer end surface of the valve body 10, and the nut 6 is screwed to the tie rod 4.
  • the inner diameter of the valve seat 2 is equal to the diameter of the medium passage 11.
  • the outer diameter of the shoulder 8 is smaller than the diameter of the medium passage 11, the thickness of the shoulder 8 is smaller than the width of the annular groove 7, the outer diameter of the shoulder 8 is smaller than the inner diameter of the valve seat 2, the tie rod 4 has 2-4, the tie rod 4, etc.
  • the interval is set in the medium channel 11. Only one tie rod 4 is shown in Figures 1 and 3, and the remaining tie rods 4 are not shown.
  • the tail of the tie rod 4 is provided with an external thread 9 adapted to the nut 6, and the pressure plate 5 is provided with a through hole through which the tail end of the tie rod 4 passes.
  • a spring 3 is mounted between the valve seat 2 and the valve body 10, and the spring 3 is a coil spring.
  • the number of the springs 3 can be selected according to the diameter of the medium passage 11. In the present embodiment, there are 12 to 36 springs 3, and the springs 3 are disposed along the circumferential direction of the valve seat 2.
  • a spring chamber is formed on one end surface of the valve seat 2, and the spring 3 is mounted in the spring chamber.
  • valve seat 2 After the valve seat 2 is inserted into the valve body 10, the valve seat 2 needs to be tightened to fit the valve body 10 to be placed in the shutter 1.
  • the pull rod 4 is extended from the medium passage 11 into the valve body 10, the shoulder 8 of the head end of the pull rod 4 is snapped into the annular groove 7 of the valve seat 2, and the pressure plate 5 is passed from the tail end of the pull rod 4 through the tie rod 4 and the pressure plate 5 is attached.
  • the pull rod 4 On the outer end surface of the valve body 10, the pull rod 4 is pulled by tightening the nut 6 tight.
  • the valve seat 2 is caused to compress the spring 3 so as to abut against the valve body 10, so that the distance between the upstream valve seat and the downstream valve seat is increased, so that the shutter 1 can be easily inserted.
  • a valve seat 2 can be tensioned with 2-4 pull rods 4, and the plurality of tie rods 4 are preferably disposed at equal intervals in the medium passage 11.
  • the nut 6 is loosened, and the spring 3 is gradually rebounded, so that the valve seat 2 is closely adhered between the valve body 10 and the shutter 1 to ensure good sealing performance; finally, the pull rod 4 is removed from the medium passage 11 Take out.
  • the utility model removes the valve seat and the valve body of the valve, and only needs to provide three additional parts, namely the tie rod, the pressure plate and the nut, so that the valve seat and the ram can be installed, the structure is simple and reliable, the cost is low, the use is convenient and convenient. storage.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Check Valves (AREA)

Abstract

一种闸板阀阀座安装结构，包括阀体（10）、阀座（2）、拉杆（4）、压板（5）和螺母（6）；阀座安装在阀体内，拉杆的头端设有凸肩（8），阀体有介质通道（11），拉杆的头端沿介质通道穿进阀体中，拉杆与阀体、介质通道的轴线平行，阀座内壁同轴设有环形凹槽（7），凸肩卡在环形凹槽中，拉杆的尾端露在阀体外，压板套在拉杆上，螺母将压板压在阀体的外端面上，螺母与拉杆螺纹连接。该安装结构简单，成本低廉，使用拉杆将阀座拉紧，便于放入闸板（1），提高安装效率。

Description

一种闸板阀阀座安装结构 技术领域
本实用新型涉及阀门技术领域，尤其涉及一种闸板阀阀座安装结构。
背景技术
闸板阀是最常用的截断阀之一，主要用来接通或截断管路中的介质，不运用于调节介质流量。运用的压力、温度及直径范围很大，尤其运用于中、大直径的管道。阀座是阀门内可拆卸面部件，用于支撑阀芯全关位置，并构成密封副。闸板阀在安装中，由于许用密封比压导致闸板安装较困难，目前采用的安装方式有很多，但是都操作复杂。
实用新型内容
本实用新型旨在提供一种闸板阀阀座安装结构，结构简单，操作方便。
为达到上述目的，本实用新型采用的技术方案如下：
一种闸板阀阀座安装结构，包括阀体、阀座、拉杆、压板和螺母，所述阀座安装在阀体内，所述拉杆的头端设有凸肩，所述阀体有介质通道，所述拉杆的头端沿介质通道穿进阀体中，拉杆与阀体和介质通道的轴线平行，所述阀座内壁同轴设有环形凹槽，所述凸肩卡在环形凹槽中，所述拉杆的尾端露在阀体外，所述压板套在拉杆上，所述螺 母将压板压在阀体的外端面上，螺母与拉杆螺纹连接。
进一步的，所述凸肩的外径小于介质通道的直径。
进一步的，所述阀座与阀体之间安装有弹簧。
进一步的，所述拉杆有2-4个，拉杆等间隔设置在介质通道中。
进一步的，所述阀座的一端面上开有弹簧腔。
进一步的，所述阀座的内径与介质通道的直径相等。
进一步的，所述弹簧为螺旋弹簧。
进一步的，所述弹簧有12-36个，弹簧沿阀座的圆周方向等间设置。
与现有技术相比，本实用新型具有以下有益效果：
本实用新型结构简单，成本低廉，使用拉杆将阀座拉紧，便于放入闸板，提高安装效率。
附图说明
图1是本实用新型的结构示意图；
图2是本实用新型的中拉杆的结构示意图；
图3是本实用新型在闸板阀中的结构示意图；
图中：1-闸板、2-阀座、3-弹簧、4-拉杆、5-压板、6-螺母、7-环形凹槽、8-凸肩、9-外螺纹、10-阀体、11-介质通道。
具体实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下 结合附图，对本实用新型进行进一步详细说明。
如图1所示，本实用新型公开的闸板阀阀座安装结构，包括阀体10、阀座2、拉杆4、压板5和螺母6，阀座2安装在阀体10内，如图2所示，拉杆4的头端设有凸肩8，阀体10有介质通道11，拉杆4的头端沿介质通道11穿进阀体10中，拉杆4与阀体10和介质通道11的轴线平行，阀座2内壁同轴设有环形凹槽7，凸肩8卡在环形凹槽7中，拉杆4的尾端露在阀体10外，压板5套在拉杆4上，螺母6将压板5压在阀体10的外端面上，螺母6与拉杆4螺纹连接。阀座2的内径与介质通道11的直径相等。
凸肩8的外径小于介质通道11的直径，凸肩8的厚度小于环形凹槽7的宽度，凸肩8的外径小于阀座2的内径，拉杆4有2-4个，拉杆4等间隔设置在介质通道11中。图1和图3中只示出了1个拉杆4，其余拉杆4未示出。拉杆4的尾部设有与螺母6适配的外螺纹9，压板5上开有供拉杆4尾端穿过的通孔。
进一步的，阀座2与阀体10之间安装有弹簧3，弹簧3为螺旋弹簧，根据介质通道11直径的大小，可选择弹簧3的个数。本实施方式中弹簧3有12-36个，弹簧3沿阀座2的圆周方向等间设置。阀座2的一端面上开有弹簧腔，弹簧3安装在弹簧腔中。
阀座2装入阀体10后，需要将阀座2拉紧，以贴紧阀体10，才能放入闸板1。使拉杆4从介质通道11伸进阀体10中，将拉杆4头端的凸肩8卡入阀座2的环形凹槽7中，将压板5从拉杆4尾端穿过拉杆4并压板5贴在阀体10外端面上，通过拧紧螺母6将拉杆4拉 紧。使得阀座2压缩弹簧3从而贴紧阀体10，这样上游的阀座与下游的阀座之间的距离增大，从而可以轻松放入闸板1。根据介质通道11直径的大小，一个阀座2可以用2-4个拉杆4来拉紧，多个拉杆4最好等间隔设置在介质通道11中。当放入闸板1后，拧松螺母6，弹簧3逐渐回弹，使阀座2紧贴在阀体10与闸板1之间，保证良好的密封性能；最后将拉杆4从介质通道11中取出。
本实用新型除去阀门的阀座与阀体外，只需要另外提供三个零件，即拉杆、压板、螺母，就可实现阀座、闸板的安装，其结构简单可靠，成本低廉，使用方便，便于保管。
当然，本实用新型还可有其它多种实施方式，在不背离本实用新型精神及其实质的情况下，熟悉本领域的技术人员可根据本实用新型作出各种相应的改变和变形，但这些相应的改变和变形都应属于本实用新型所附的权利要求的保护范围。

Claims (8)

  1. 一种闸板阀阀座安装结构，其特征在于:包括阀体(10)、阀座(2)、拉杆(4)、压板(5)和螺母(6)，所述阀座(2)安装在阀体(10)内，所述拉杆(4)的头端设有凸肩(8)，所述阀体(10)有介质通道(11)，所述拉杆(4)的头端沿介质通道(11)穿进阀体(10)中，拉杆(4)与阀体(10)和介质通道(11)的轴线平行，所述阀座(2)内壁同轴设有环形凹槽(7)，所述凸肩(8)卡在环形凹槽(7)中，所述拉杆(4)的尾端露在阀体(10)外，所述压板(5)套在拉杆(4)上，所述螺母(6)将压板(5)压在阀体(10)的外端面上，螺母(6)与拉杆(4)螺纹连接。
  2. 根据权利要求1所述的闸板阀阀座安装结构，其特征在于：所述阀座(2)与阀体(10)之间安装有弹簧(3)。
  3. 根据权利要求1所述的闸板阀阀座安装结构，其特征在于：所述凸肩(8)的外径小于介质通道(11)的直径。
  4. 根据权利要求3所述的闸板阀阀座安装结构，其特征在于：所述拉杆(4)有2-4个，拉杆(4)等间隔设置在介质通道(11)中。
  5. 根据权利要求1或2所述的闸板阀阀座安装结构，其特征在于：所述阀座(2)的一端面上开有弹簧腔。
  6. 根据权利要求1或3所述的闸板阀阀座安装结构，其特征在于：所述阀座(2)的内径与介质通道(11)的直径相等。
  7. 根据权利要求2所述的闸板阀阀座安装结构，其特征在于：所述弹簧(3)为螺旋弹簧。
  8. 根据权利要求8所述的闸板阀阀座安装结构，其特征在于：所述弹簧(3)有12-36个，弹簧(3)沿阀座(2)的圆周方向等间设置。
PCT/CN2017/085853 2016-09-22 2017-05-25 一种闸板阀阀座安装结构 WO2018054084A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206175689U (zh) * 2016-09-22 2017-05-17 成都乘风阀门有限责任公司 一种闸板阀阀座安装结构
CN108626425B (zh) * 2018-06-27 2024-01-16 上海阀门厂股份有限公司 一种高温高压调节闸阀
CN108916406B (zh) * 2018-07-12 2020-03-10 苏州纽威阀门股份有限公司 一种更换阀座的更换结构

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GB191207046A (en) * 1910-10-14 1913-03-20 George Fletcher And Company Lt Improvements in Discharge or Outlet Valves.
RU2297568C1 (ru) * 2005-08-08 2007-04-20 Федеральное государственное унитарное предприятие Центральное конструкторское бюро машиностроения (ФГУП "ЦКБМ") Устройство шиберное
US20130056670A1 (en) * 2008-04-14 2013-03-07 Thunder Rose Enterprises, Inc. Gate Valve With Equalizer Port
JP2009150555A (ja) * 2009-03-02 2009-07-09 Front Co Ltd 流量調節弁
CN101539208A (zh) * 2009-04-22 2009-09-23 章步靖 平板闸阀的阀座定位机构
CN205438429U (zh) * 2016-03-23 2016-08-10 德莱赛机械(苏州)有限公司 阀座安装装置
CN206175689U (zh) * 2016-09-22 2017-05-17 成都乘风阀门有限责任公司 一种闸板阀阀座安装结构

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