CN104006163A - 耐腐蚀快关式截止阀 - Google Patents

耐腐蚀快关式截止阀 Download PDF

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Publication number
CN104006163A
CN104006163A CN201310055770.1A CN201310055770A CN104006163A CN 104006163 A CN104006163 A CN 104006163A CN 201310055770 A CN201310055770 A CN 201310055770A CN 104006163 A CN104006163 A CN 104006163A
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China
Prior art keywords
valve
corrosion
stop valve
rod
boss
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Pending
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CN201310055770.1A
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English (en)
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全文章
李顺明
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Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd
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Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd
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Priority to CN201310055770.1A priority Critical patent/CN104006163A/zh
Publication of CN104006163A publication Critical patent/CN104006163A/zh
Pending legal-status Critical Current

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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
    • F16K1/02—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
    • 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
    • F16K1/36—Valve 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
    • 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
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
    • F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston

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

Abstract

本发明公开了一种耐腐蚀快关式截止阀，它包括截止阀、动力缸和手动应急机构；动力缸包括活塞、活塞杆、与截止阀连接的缸盖和卸荷通道；截止阀包括阀杆、阀盖、阀瓣、阀座和手轮；阀瓣、阀座密封面上设有耐腐蚀复合层；伸出阀盖的阀杆侧面设有径向销轴；阀盖与阀杆配合处设有向上凸出的凸台，凸台上设有向上的开口槽，与销轴配合构成轴向定位机构，并与手轮一起构成手动应急机构；开口槽的深度大于截止阀应急开启时阀杆需上升的高度；在活塞和缸盖之间套装压缩弹簧，构成弹性复位机构。本发明阀瓣、阀座密封面具有较强的耐腐蚀性，密封性好，使用寿命长；在截止阀出现异常情况时，手动应急操作方便、快捷，工作可靠。

Description

耐腐蚀快关式截止阀
技术领域
本发明涉及一种截止阀，具体地讲，本发明涉及一种快关截止阀。
背景技术
快关截止阀因具有操作方便、快捷等特点，被广泛应用于工矿企业的管网中。在输送腐蚀性介质的管网中时，截止阀的阀瓣、阀座密封面会受到腐蚀性介质腐蚀而快速磨损，不仅影响密封效果，而且使用寿命短；另一方面，现有的快关截止阀包括截止阀、动力缸，由动力缸驱动实现截止阀的打开或关闭。但现有快关截止阀在失去动力源时，无法正常地实现截止阀的打开或关闭，这时，一般需将动力缸与截止阀拆开后，手工移动截止阀阀杆来打开或关闭截止阀，这一过程不但费事，而且耗时较长，情况紧急时可能会造成较大损失。
发明内容
本发明针对现有技术的不足，提出一种阀瓣、阀座密封面耐腐蚀性好，在截止阀出现异常情况时，手动应急操作方便、快捷，工作可靠的耐腐蚀快关式截止阀。
本发明通过下述技术方案实现技术目标。
耐腐蚀快关式截止阀，它包括截止阀、动力缸；所述动力缸包括活塞、活塞杆和与截止阀连接的缸盖；所述动力缸两端设有卸荷通道；所述截止阀包括阀杆、阀盖、阀瓣、阀座和手轮，所述阀杆向上贯穿阀盖，与手轮连接；其改进之处在于：所述阀瓣密封面上设有耐腐蚀复合层，阀座密封面上设有耐腐蚀复合层；所述耐腐蚀快关式截止阀还包括手动应急机构；伸出所述阀盖的阀杆侧面设有径向销轴；所述阀盖与阀杆配合处设有向上凸出的凸台，凸台上设有向上的开口槽，与销轴配合构成轴向定位机构，并与手轮一起构成所述手动应急机构；所述开口槽的深度大于截止阀应急开启时阀杆需上升的高度；在所述活塞和缸盖之间套装压缩弹簧，构成弹性复位机构。
作为上述方案的优选方案，所述耐腐蚀复合层为聚四氟乙烯复合层。
本发明与现有技术相比，具有以下积极效果：
1.阀座、阀瓣密封面上设有耐腐蚀复合层，使得阀座、阀瓣密封面具有较好的耐腐蚀性，而且提高了密封性和使用寿命。
2.可实现手动应急操作，操作方便、快捷。
3.手动平移机构设置在阀盖上，无需改变动力缸结构，结构简单，密封可靠。
附图说明
图1为本发明的结构示意图。
具体实施方式
下面根据附图并结合实施例对本发明作进一步说明。
附图所示的耐腐蚀快关式截止阀，它包括截止阀7、动力缸9和手动应急机构；动力缸9包括活塞9.2、活塞杆9.5和与截止阀7连接的缸盖9.4；动力缸9两端设有卸荷通道9.1；截止阀7包括阀杆2、阀盖5、阀瓣11、阀座12和手轮1，阀杆2向上贯穿阀盖5，与手轮1连接；为了使得阀座11、阀瓣12密封面具有较好的耐腐蚀性，本发明在阀瓣11密封面上设有耐腐蚀复合层14，阀座12密封面上设有耐腐蚀复合层13，本实施例中，耐腐蚀复合层13和14为聚四氟乙烯复合层。
伸出阀盖5的阀杆2侧面设有径向销轴3；阀盖5与阀杆2配合处设有向上凸出的凸台4，凸台4上设有向上的开口槽8，与销轴3配合构成轴向定位机构，并与手轮1一起构成手动应急机构；开口槽8的深度大于截止阀7应急开启时阀杆2需上升的高度；在活塞9.2和缸盖9.4之间套装压缩弹簧9.3，构成弹性复位机构。
发生意外情况需要立即调整截止阀7的工作状态时，先打开动力缸9两端的卸荷通道9.1，活塞杆9.5在压缩弹簧9.3的作用下，向左移动，活塞杆9.5缩回缸盖9.4内，需手工打开截止阀7时，手工提起手轮1，使阀杆2连同销轴3向上移动，当销轴3到达凸台4上端面时，将手轮1转动40°～90°，松开手轮1，销轴3在阀杆2下端压缩弹簧10的作用下，确保销轴3与凸台4上端面的配合具有锁紧力；当需手工闭合截止阀7时，手工转动手轮1，使销轴3重新落入开口槽8中，在阀杆2下端压缩弹簧10的作用下下移，实现截止阀7的闭合。

Claims (2)

1.一种耐腐蚀快关式截止阀，它包括截止阀(7)、动力缸(9)；所述动力缸(9)包括活塞(9.2)、活塞杆(9.5)和与截止阀(7)连接的缸盖(9.4)；所述动力缸(9)两端设有卸荷通道(9.1)；所述截止阀(7)包括阀杆(2)、阀盖(5)、阀瓣(11)、阀座(12)和手轮(1)，所述阀杆(2)向上贯穿阀盖(5)，与手轮(1)连接；其特征在于：所述阀瓣(11)密封面上设有耐腐蚀复合层(14)，阀座(12)密封面上设有耐腐蚀复合层(13)；所述耐腐蚀快关式截止阀还包括手动应急机构；伸出所述阀盖(5)的阀杆(2)侧面设有径向销轴(3)；所述阀盖(5)与阀杆(2)配合处设有向上凸出的凸台(4)，凸台(4)上设有向上的开口槽(8)，与销轴(3)配合构成轴向定位机构，并与手轮(1)一起构成所述手动应急机构；所述开口槽(8)的深度大于截止阀(7)应急开启时阀杆(2)需上升的高度；在所述活塞(9.2)和缸盖(9.4)之间套装压缩弹簧(9.3)，构成弹性复位机构。
2.根据权利要求1所述的耐腐蚀快关式截止阀，其特征在于：所述耐腐蚀复合层(13)和(14)为聚四氟乙烯复合层。
CN201310055770.1A 2013-02-21 2013-02-21 耐腐蚀快关式截止阀 Pending CN104006163A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042089A (zh) * 2015-05-29 2015-11-11 苏州纽威阀门股份有限公司 一种截止阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042089A (zh) * 2015-05-29 2015-11-11 苏州纽威阀门股份有限公司 一种截止阀

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Application publication date: 20140827