CN104006171A - 耐腐蚀阀板便调式蝶阀 - Google Patents

耐腐蚀阀板便调式蝶阀 Download PDF

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Publication number
CN104006171A
CN104006171A CN201310055806.6A CN201310055806A CN104006171A CN 104006171 A CN104006171 A CN 104006171A CN 201310055806 A CN201310055806 A CN 201310055806A CN 104006171 A CN104006171 A CN 104006171A
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CN
China
Prior art keywords
valve
corrosion
valve rod
valve plate
plate
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
CN201310055806.6A
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English (en)
Inventor
全文章
李顺明
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.)
Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd
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Jiangsu Zhong Hao Marine Valve Manufacturing 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.)
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Application filed by Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd filed Critical Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd
Priority to CN201310055806.6A priority Critical patent/CN104006171A/zh
Publication of CN104006171A publication Critical patent/CN104006171A/zh
Pending legal-status Critical Current

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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
    • F16K1/16—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
    • F16K1/224—Details of bearings 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
    • F16K1/16—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

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

Abstract

本发明公开了一种耐腐蚀阀板便调式蝶阀，它包括阀体、阀杆、阀座、阀板和端盖；阀座密封表面设有合成密封垫；端盖固定连接在阀杆下端、阀体的底端；阀杆下端设有阀板调节机构；阀板调节机构包括贯穿端盖的螺钉、套装螺钉上的并帽；阀杆下端与端盖之间自上而下设有平面轴承、托板；阀杆支承在平面轴承上；螺钉的上端顶在托板的下端面。本发明耐腐蚀性强，密封操作扭矩小，特别适用于输送腐蚀性流体介质的大型通径管路中。

Description

耐腐蚀阀板便调式蝶阀
技术领域
本发明涉及一种蝶阀。
背景技术
蝶阀作为一种在管道上主要起切断和节流作用的阀，广泛应用于发生炉、煤气、天然气、液化石油气、城市煤气、冷热空气、化工冶炼和发电环保、建筑给排水等工程系统中输送各种腐蚀性、非腐蚀性流体介质的管道上。现有技术的蝶阀通过阀板与阀座的配合保证蝶阀的密封性，其阀座上设有普通橡胶密封垫。这种普通橡胶密封垫耐腐蚀性差，在输送腐蚀性流体介质时，蝶阀密封处容易因密封垫不耐腐蚀影响蝶阀的密封性。另一方面，现有技术的蝶阀通过转动阀杆，从而带动阀杆上的阀板转动，从而实现蝶阀的开启或关闭。对于大型蝶阀，由于阀板、阀杆重量较重，而阀杆下端直接支承在其下端的端盖上，因此，蝶阀关闭时需要较大的密封操作扭矩。
实现新型内容
本发明针对现有技术的不足，提出一种耐腐蚀性好，密封操作扭矩小的耐腐蚀阀板便调式蝶阀。
本发明通过下述技术方案实现技术目标。
耐腐蚀阀板便调式蝶阀，它包括阀体、阀杆、阀座、阀板和端盖；所述端盖固定连接在阀杆下端、阀体的底端；所述阀杆下端设有阀板调节机构；所述阀板调节机构包括贯穿端盖的螺钉、套装螺钉上的并帽；其改进之处在于：所述阀座密封表面设有合成密封垫；所述阀杆下端与端盖之间自上而下设有平面轴承、托板；所述阀杆支承在平面轴承上；所述螺钉的上端顶在托板的下端面。
上述方案的优化方案在于：所述阀杆下端设有轴肩与平面轴承内孔配合。
上述方案的优化方案在于：所述阀座密封表面合成密封垫为聚四氟乙烯密封垫。
本发明与现有技术相比，具有以下积极效果：
1.阀座密封表面设有聚四氟乙烯密封垫，具有较强的耐腐蚀性。
2.阀杆下端支承在平面轴承上，转动阀杆只需要很小的扭矩，密封操作扭矩小。
附图说明
图1是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。
附图所示的耐腐蚀阀板便调式蝶阀，它包括阀体1、阀杆5、阀座2、阀板4和端盖8；阀座2密封表面设有合成密封垫3，本实施例中，阀座2密封表面合成密封垫3为聚四氟乙烯密封垫。
端盖8固定连接在阀杆5下端、阀体1的底端；阀杆5下端设有阀板调节机构；阀板调节机构包括贯穿端盖8的螺钉9、套装螺钉9上的并帽10，在阀杆5下端与端盖8之间自上而下设有平面轴承6、托板7；阀杆5支承在平面轴承6上；螺钉9的上端顶在托板7的下端面，本实施例中，阀杆5下端设有轴肩与平面轴承6内孔配合。

Claims (3)

1.一种耐腐蚀阀板便调式蝶阀，它包括阀体(1)、阀杆(5)、阀座(2)、阀板(4)和端盖(8)；所述端盖(8)固定连接在阀杆(5)下端、阀体(1)的底端；所述阀杆(5)下端设有阀板调节机构；所述阀板调节机构包括贯穿端盖(8)的螺钉(9)、套装螺钉(9)上的并帽(10)；其特征在于：所述阀座(2)密封表面设有合成密封垫(3)；所述阀杆(5)下端与端盖(8)之间自上而下设有平面轴承(6)、托板(7)；所述阀杆(5)支承在平面轴承(6)上；所述螺钉(9)的上端顶在托板(7)的下端面。
2.根据权利要求1所述的耐腐蚀阀板便调式蝶阀，其特征在于：所述阀杆(5)下端设有轴肩与平面轴承(6)内孔配合。
3.根据权利要求1或2所述的耐腐蚀阀板便调式蝶阀，其特征在于：所述阀座(2)密封表面合成密封垫(3)为聚四氟乙烯密封垫。
CN201310055806.6A 2013-02-21 2013-02-21 耐腐蚀阀板便调式蝶阀 Pending CN104006171A (zh)

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CN201310055806.6A CN104006171A (zh) 2013-02-21 2013-02-21 耐腐蚀阀板便调式蝶阀

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987181A (zh) * 2016-06-24 2016-10-05 江苏中昊船用阀门制造有限公司 便调式三偏心蝶阀
CN108036062A (zh) * 2017-11-14 2018-05-15 凯喜姆阀门有限公司 一种高压偏心蝶阀

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987181A (zh) * 2016-06-24 2016-10-05 江苏中昊船用阀门制造有限公司 便调式三偏心蝶阀
CN108036062A (zh) * 2017-11-14 2018-05-15 凯喜姆阀门有限公司 一种高压偏心蝶阀
CN108036062B (zh) * 2017-11-14 2019-11-12 凯喜姆阀门有限公司 一种高压偏心蝶阀

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Application publication date: 20140827