CN114087381A - 一种新型船舶有限空间用阀门的桁架式蝶板结构 - Google Patents

一种新型船舶有限空间用阀门的桁架式蝶板结构 Download PDF

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Publication number
CN114087381A
CN114087381A CN202111473303.1A CN202111473303A CN114087381A CN 114087381 A CN114087381 A CN 114087381A CN 202111473303 A CN202111473303 A CN 202111473303A CN 114087381 A CN114087381 A CN 114087381A
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China
Prior art keywords
valve
butterfly plate
plate
truss
valve body
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CN202111473303.1A
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English (en)
Inventor
代守宝
孙杨
杨光
高万博
张昊岩
梁世超
吕东阳
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703th Research Institute of CSIC
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703th Research Institute of CSIC
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Priority to CN202111473303.1A priority Critical patent/CN114087381A/zh
Publication of CN114087381A publication Critical patent/CN114087381A/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
    • 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
    • F16K1/222—Shaping of 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
    • 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

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

Abstract

本发明属于汽轮机配件技术领域，具体涉及一种新型船舶有限空间用阀门的桁架式蝶板结构。本发明包括阀板、阀体、第一阀轴、第二阀轴；阀板为采用桁架式结构的八边形蝶板，阀体为圆环形结构，第一阀轴、第二阀轴为两个半轴型结构，在同轴线两侧透过阀体凸台将阀板固定在阀体内侧。本发明采用桁架式结构蝶板，桁架式蝶板经焊接组成整体，加工前进行热处理消除焊接应力，同时，由于截面距轴心较远，惯性矩较大，因而承载能力就较大；蝶板桁架结构中间可以通过介质，增加流通面积，大大减少流体扰动和流阻，蝶板阀座堆焊司太立硬质合金，硬度高，有效减小高流速介质对阀门密封面的冲刷。

Description

一种新型船舶有限空间用阀门的桁架式蝶板结构
技术领域
本发明属于汽轮机配件技术领域，具体涉及一种新型船舶有限空间用阀门的桁架式蝶板结构。
背景技术
船舶蒸汽动力汽轮机组具有频繁变负荷和高可靠性的运行特点，机组冷源终端共用冷凝器为机组运行提供真空环境，并回收、冷凝机组及系统的排气和疏水，但共用冷凝器通海部件长期承受海水冲刷、浸泡、压力交变等恶劣环境，一旦发生渗漏，严重威胁机组的安全可靠运行。因此船舶新型机组采用左右舷两台共用冷凝器，并在主汽轮机与两台冷凝器之间分别布置隔断阀的方案，如机组运行时一台冷凝器故障，立即通过隔断阀关闭切断主汽轮机该侧排气通道，保证机组机组正常安全运行。隔断阀采用蝶阀形式，蝶板是蝶阀的启闭件，随着蝶板的启闭，既能控制介质通断，又能调节介质流量，当大口径蝶板运行时，蝶板处于流动介质之中，既要承受介质的作用力而不致损坏和产生过大的变形，还应有较好的流态。由于在蝶阀关闭时，阀前后的压差很大，因此，蝶板的强度应予以重视，同时应尽可能减少阀门的流阻。
发明内容
本发明的目的在于提供一种新型船舶有限空间用阀门的桁架式蝶板结构。
本发明的目的是这样实现的：
一种新型船舶有限空间用阀门的桁架式蝶板结构，包括阀板、阀体、第一阀轴、第二阀轴；阀板为采用桁架式结构的八边形蝶板，阀体为圆环形结构，第一阀轴、第二阀轴为两个半轴型结构，在同轴线两侧透过阀体凸台将阀板固定在阀体内侧。
每根半轴插入蝶板的凸台的深度达到阀杆直径的1.5倍。
本发明的有益效果在于：
为了提高抗弯刚性，本发明采用桁架式结构蝶板，桁架式蝶板经焊接组成整体，加工前进行热处理消除焊接应力，同时，由于截面距轴心较远，惯性矩较大，因而承载能力就较大；蝶板桁架结构中间可以通过介质，增加流通面积，大大减少流体扰动和流阻，蝶板阀座堆焊司太立硬质合金，硬度高，有效减小高流速介质对阀门密封面的冲刷。
附图说明
图1是本发明一种新型船舶有限空间用阀门的桁架式蝶板结构的平面图；
图2是本发明的侧视图。
具体实施方式
下面结合附图对本发明做进一步描述。
一种新型船舶有限空间用阀门的桁架式蝶板结构包括阀板1、阀体2、第一阀轴3、第二阀轴4；阀板为采用桁架式结构的八边形蝶板，阀体为圆环形结构，第一阀轴、第二阀轴为两个半轴型结构，在同轴线两侧透过阀体凸台将阀板固定在阀体内侧。
每根半轴插入蝶板的凸台的深度达到阀杆直径的1.5倍。
本发明为了提高蝶阀的流通能力，进一步减少流动阻力，需要把单个阀杆设计成两个半轴型结构，保证每根半轴插入蝶板凸台的深度达到阀杆直径的1.5倍，并把蝶板设计成桁架结构，以增大阀门的流通能力，减少流体经过阀门时的压力损失。

Claims (2)

1.一种新型船舶有限空间用阀门的桁架式蝶板结构，包括阀板、阀体、第一阀轴、第二阀轴；其特征在于：阀板为采用桁架式结构的八边形蝶板，阀体为圆环形结构，第一阀轴、第二阀轴为两个半轴型结构，在同轴线两侧透过阀体凸台将阀板固定在阀体内侧。
2.根据权利要求1所述的一种新型船舶有限空间用阀门的桁架式蝶板结构，其特征在于：每根半轴插入蝶板的凸台的深度达到阀杆直径的1.5倍。
CN202111473303.1A 2021-12-02 2021-12-02 一种新型船舶有限空间用阀门的桁架式蝶板结构 Pending CN114087381A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2395096Y (zh) * 1999-08-30 2000-09-06 沈阳市蝶阀厂 一种新型法兰式蝶阀
CN204114174U (zh) * 2014-09-13 2015-01-21 大众阀门集团有限公司 一种高温压力自调式双向金属密封蝶阀
CN105156727A (zh) * 2015-09-06 2015-12-16 湖北高中压阀门有限责任公司 一种大尺寸止回蝶阀
CN217713666U (zh) * 2021-12-02 2022-11-01 中国船舶重工集团公司第七0三研究所 一种新型船舶有限空间用阀门的桁架式蝶板结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2395096Y (zh) * 1999-08-30 2000-09-06 沈阳市蝶阀厂 一种新型法兰式蝶阀
CN204114174U (zh) * 2014-09-13 2015-01-21 大众阀门集团有限公司 一种高温压力自调式双向金属密封蝶阀
CN105156727A (zh) * 2015-09-06 2015-12-16 湖北高中压阀门有限责任公司 一种大尺寸止回蝶阀
CN217713666U (zh) * 2021-12-02 2022-11-01 中国船舶重工集团公司第七0三研究所 一种新型船舶有限空间用阀门的桁架式蝶板结构

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