CN111237494A - 一种强制密封闸阀 - Google Patents

一种强制密封闸阀 Download PDF

Info

Publication number
CN111237494A
CN111237494A CN202010267543.5A CN202010267543A CN111237494A CN 111237494 A CN111237494 A CN 111237494A CN 202010267543 A CN202010267543 A CN 202010267543A CN 111237494 A CN111237494 A CN 111237494A
Authority
CN
China
Prior art keywords
flashboard
valve
main
valve body
auxiliary
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.)
Pending
Application number
CN202010267543.5A
Other languages
English (en)
Inventor
代静
徐珍
张兆锟
张林华
孙建飞
卞士垒
孔秉涛
林金飞
丁国宇
赵敏捷
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.)
Shanghai High & Medium Pressure Valve Co ltd
Original Assignee
Shanghai High & Medium Pressure Valve 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 Shanghai High & Medium Pressure Valve Co ltd filed Critical Shanghai High & Medium Pressure Valve Co ltd
Priority to CN202010267543.5A priority Critical patent/CN111237494A/zh
Publication of CN111237494A publication Critical patent/CN111237494A/zh
Pending legal-status Critical Current

Links

Images

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
    • 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
    • F16K3/029—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 with two or more gates
    • 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
    • F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve 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
    • 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
    • F16K3/16—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 with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—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 with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
    • 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
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)

Abstract

本发明涉及阀门技术领域，具体来说是一种强制密封闸阀，包括阀体，设置在阀体内的阀座，设置在阀体内用于密封阀座的闸板和设置在阀体内用于控制闸板上下运动的阀杆，其特征在于：所述阀体内左右两侧均设有阀座，闸板分为主闸板和副闸板，主闸板和副闸板分别密封一侧的阀座，主闸板和副闸板通过连接套与阀杆连接，主闸板和副闸板之间设有胀块，其优点在于：通过主闸板和副闸板中间设置的胀块，使得闸板径向运动后就与阀座密封，防止闸板轴向运动中与阀座摩擦。

Description

一种强制密封闸阀
技术领域
本发明涉及阀门技术领域，具体来说是一种强制密封闸阀。
背景技术
闸阀的关闭件一般由闸板和阀座组成，闸板的运动方向与流体方向相垂直，闸板向阀座的压密封力一般由介质压力来提供，介质推动闸板压紧阀座，从而形成密封。其缺点在于，在阀门的开启和关闭过程中，闸板与阀座始终接触并产生摩擦，容易导致闸板密封面与阀座密封面产生摩擦而损坏，使用寿命短，同时在阀门开启和关闭过程中，闸板和阀座之间产生的摩擦，导致阀门所需的驱动力增大，进一步增加了阀门成本。另一方面，由于工况的不同，经常会出现流向变化和高压、低压侧互换的情况。这样就会导致阀门不能实现阻断功能，进而威胁到整个工业系统的安全。
发明内容
本发明的目的在于解决现有技术的不足，提供一种强制密封闸阀。
为了实现上述目的，设计一种强制密封闸阀，包括阀体，设置在阀体内的阀座，设置在阀体内用于密封阀座的闸板和设置在阀体内用于控制闸板上下运动的阀杆，其特征在于：所述阀体内左右两侧均设有阀座，闸板分为主闸板和副闸板，主闸板和副闸板分别密封一侧的阀座，主闸板和副闸板通过连接套与阀杆连接，主闸板和副闸板之间设有胀块。
主闸板和副闸板通过弹簧与连接套连接。
阀杆上端外侧设有阀杆螺母，阀杆螺母上设有手轮。
阀杆顶部设有指示杆。
本发明同现有技术相比，其优点在于：
1.通过主闸板和副闸板中间设置的胀块，使得闸板径向运动后就与阀座密封，防止闸板轴向运动中与阀座摩擦；
2.在阀座左右两侧均设置有闸板，保证了双向密封；
3.阀杆上方指示杆使得阀门开闭状态可见。
附图说明
图1是本发明整体结构示意图；
图中：1为阀体，2为阀座，3为副闸板，4为胀块，5为主闸板Ⅰ，6为连接套，7为密封垫片，8为阀盖，9为填料，10为隔环，11为填料压板，12为阀杆，13为阀杆螺母，14为轴承压盖，15为手轮，16为螺母，17为防护罩，18为指示杆。
具体实施方式
下面结合附图对本发明作进一步说明，这种装置的结构和原理对本专业的人来说是非常清楚的。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明为一种强制密封闸阀，包括阀体，设置在阀体内的阀座，闸板，设置在闸板间的胀块，设置在阀体内的阀杆，设置在阀体上的阀盖，设置在阀体与阀盖间的密封垫片，设置在阀盖内的填料，设置在阀盖内的隔环，设置在阀盖上的填料压板，设置在阀盖内的阀杆螺母，设置在阀盖内的轴承压盖，设置在阀杆螺母上的手轮和螺母，设置在手轮上的防护罩，设置在阀杆上的指示杆；所述的阀座安装在阀体内，焊接固定在阀体上；所述的阀座密封表面堆焊或喷涂硬质合金，提高密封表面耐磨性能；所述的闸板密封表面堆焊或喷涂硬质合金，提高密封面耐磨性；所述的闸板为双闸板，有主闸板和副闸板之分；所述的胀块安装在主闸板和副闸板中间，与闸板的运动轨迹相同；所述的主闸板与阀杆连接，随阀杆一起上下运动；所述的副闸板与主闸板、胀块组合成一体，其轴向运动轨迹相同；所述的阀盖与支架一体，所述的阀盖安装在阀体上，与阀体螺栓连接；所述的阀盖与阀杆间安装有填料；所述的填料中间安装有隔环；所述的填料压板安装在阀盖上，与填料接触，与阀盖螺栓连接；所述的阀杆螺母安装在阀盖上，同时与阀杆连接；所述的轴承压盖安装在阀盖上；所述的手轮安装在阀杆螺母上，与阀杆螺母一起运动；所述的螺母安装在阀杆螺母上；所述的防护罩安装在螺母上；所述的指示杆安装在阀杆上。
工作原理如下：
当阀门关闭时，主闸板5、副闸板3和胀块4、连接套6随着阀杆向下运动，胀块先接触阀体1的底部，阀杆12和连接套6带动主、副闸板继续运动，然后主闸板5和副闸板3被安装在两个闸板之间的胀块4撑开，直至两个闸板分别与两个阀座2充分接触，这样就达到了阀门上下游同时密封的效果。主/副闸板与阀座完全接触时，连接套与胀块4之间仍有一定的间隙。
阀门开启时，阀杆12带动连接套6向上运动，连接套6带动主闸板5、副闸板3向上运动，直至两个闸板完全与阀座2脱离，达到一定的位置后，胀块4随着主闸板5和副闸板3向上运动，最终到达阀盖8的上密封位置，此时主闸板5和副闸板3已经完全开阀门通道，阀门流阻较小。

Claims (4)

1.一种强制密封闸阀，包括阀体，设置在阀体内的阀座，设置在阀体内用于密封阀座的闸板和设置在阀体内用于控制闸板上下运动的阀杆，其特征在于：所述阀体内左右两侧均设有阀座，闸板分为主闸板和副闸板，主闸板和副闸板分别密封一侧的阀座，主闸板和副闸板通过连接套与阀杆连接，主闸板和副闸板之间设有胀块。
2.如权利要求1所述的一种强制密封闸阀，其特征在于：所述主闸板和副闸板通过弹簧与连接套连接。
3.如权利要求1所述的一种强制密封闸阀，其特征在于：所述阀杆上端外侧设有阀杆螺母，阀杆螺母上设有手轮。
4.如权利要求1所述的一种强制密封闸阀，其特征在于：所述阀杆顶部设有指示杆。
CN202010267543.5A 2020-04-08 2020-04-08 一种强制密封闸阀 Pending CN111237494A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010267543.5A CN111237494A (zh) 2020-04-08 2020-04-08 一种强制密封闸阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010267543.5A CN111237494A (zh) 2020-04-08 2020-04-08 一种强制密封闸阀

Publications (1)

Publication Number Publication Date
CN111237494A true CN111237494A (zh) 2020-06-05

Family

ID=70875543

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010267543.5A Pending CN111237494A (zh) 2020-04-08 2020-04-08 一种强制密封闸阀

Country Status (1)

Country Link
CN (1) CN111237494A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116066586A (zh) * 2023-04-06 2023-05-05 青岛开元阀门有限公司 一种用于自来水进水总路的阀门

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116066586A (zh) * 2023-04-06 2023-05-05 青岛开元阀门有限公司 一种用于自来水进水总路的阀门

Similar Documents

Publication Publication Date Title
CN111237494A (zh) 一种强制密封闸阀
CN111810664B (zh) 一种液压泵的真空压铸截止阀门
CN211975934U (zh) 一种强制密封闸阀
CN103994240A (zh) 阀座可移动式双向硬密封蝶阀
CN200940702Y (zh) 金属硬密封球阀
CN202746633U (zh) 一种双隔离平板闸阀
CN209909221U (zh) 一种临界球阀
CN100470103C (zh) 强密封控制阀
CN103765061B (zh) 一种用于旋转控制阀的波纹管激励的密封组件
CN202100754U (zh) 金属密封球阀
CN2789520Y (zh) 气动快速切断阀
CN202209430U (zh) 液控启闭阀
CN201096195Y (zh) 强密封控制阀
CN201475395U (zh) 闸阀
CN201225413Y (zh) 球阀
CN203857064U (zh) 阀座可移动式双向硬密封蝶阀
CN215950437U (zh) 无缝式暗杆闸阀
CN103486281A (zh) 预紧、浮动阀座双向全金属硬密封蝶阀
CN203488743U (zh) 预紧、浮动阀座双向全金属硬密封蝶阀
CN204437318U (zh) 一种改进型平板闸阀
CN101749482A (zh) 一种电机驱动的波纹管斜型焊接式阀体截止阀
CN215720938U (zh) 一种改进型双作用截止阀
CN2814054Y (zh) 一种钢管成型弹性双密封全焊球阀
CN101598238A (zh) 一种电机驱动的耐高温波纹管截止阀
CN101608709A (zh) 一种焊接连接式耐高温波纹管闸阀

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination