CN104265938A - 一种杆芯一体式金属硬密封球阀 - Google Patents

一种杆芯一体式金属硬密封球阀 Download PDF

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Publication number
CN104265938A
CN104265938A CN201410560958.6A CN201410560958A CN104265938A CN 104265938 A CN104265938 A CN 104265938A CN 201410560958 A CN201410560958 A CN 201410560958A CN 104265938 A CN104265938 A CN 104265938A
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Prior art keywords
valve
seat
rod
valve body
metal hard
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CN201410560958.6A
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高静
袁代华
邓金智
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Chengdu Fanxinjia Technology Co Ltd
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Chengdu Fanxinjia Technology Co Ltd
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Priority to CN201410560958.6A priority Critical patent/CN104265938A/zh
Publication of CN104265938A publication Critical patent/CN104265938A/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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0626—Easy mounting or dismounting means
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/10—Welded housings
    • F16K27/107—Welded housings for taps or cocks
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

本发明公开了一种杆芯一体式金属硬密封球阀，属于阀门领域。该杆芯一体式金属硬密封球阀包括左阀体、右阀体，左阀体与右阀体通过焊接形成一个整体式阀体，阀体中间设有与阀杆一体铸造成的阀芯；所述的阀杆与阀体连接处设有止渗部件；所述阀芯还紧密贴合设置有金属阀座；所述阀座分为内阀座和外阀座，内阀座通过螺钉固定在外阀座里，内阀座与外阀座贴合处还设置有密封垫圈，内阀座与阀体之间还设置有补偿弹簧。采用本发明球阀使用寿命更长，并能节省经济成本。

Description

一种杆芯一体式金属硬密封球阀
技术领域
    本发明涉及阀门领域，具体是一种杆芯一体式金属硬密封球阀。
背景技术
   球阀被广泛的应用在石油炼制、长输管线、化工、造纸、制药、水利、电力、市政、钢铁等行业，在国民经济中占有举足轻重的地位。球阀中设有球体，主要通过旋转球体来实现开启或者关闭介质通路的功能，再能起到切断、分配和改变介质流动方向的作用。
 在现有技术中，球阀的阀杆与球芯分离，用阀杆插入阀芯的槽口来实现同步旋转控制，但同时阀芯的槽口语阀杆磨损严重，容易松动，失去同步控制效果，球阀使用寿命短，且金属阀座与阀芯之间容易磨损，磨损后更换经济成本高。
发明内容    本发明旨在提供一种杆芯一体式金属硬密封球阀，旨在解决上述问题。
    为实现上述目的，本发明的技术方案如下：
一种杆芯一体式金属硬密封球阀，包括左阀体、右阀体，其特征在于：左阀体与右阀体通过焊接形成一个整体式阀体，阀体中间设有与阀杆一体铸造成的阀芯；所述的阀杆与阀体连接处设有止渗部件；所述阀芯还紧密贴合设置有金属阀座；所述阀座分为内阀座和外阀座，内阀座通过螺钉固定在外阀座里，内阀座与外阀座贴合处还设置有密封垫圈，内阀座与阀体之间还设置有补偿弹簧。
进一步地，所述外阀座与阀体之间设置有密封O形圈。
进一步地，所述密封垫圈为柔性石墨。
进一步地，所述阀杆与阀体之间设置有密封O形圈。
进一步地，所述阀杆上还用螺栓连接有手轮。
本发明的有益效果在于：
一、分体式的阀座加工更加简单，适用于大批量生产。
二、阀座分为内外阀座，增强零件的互换性外阀座与阀芯金属硬密封，阀芯与外阀座发生磨损报废后，阀芯更换成本高，只需对阀芯进行表面再处理，而根据再处理后的阀芯尺寸与公差更换新的外阀座，节约经济成本。
三、阀杆与球芯一体式设计，杜绝了阀杆插头与阀芯槽口的磨损，提高球阀的使用寿命。
四、阀体由左、右阀体焊接成，结构更稳定。
附图说明
图1是本发明提供的杆芯一体式金属硬密封球阀结构示意图。
图中标记：1为右阀体、2为弹簧、3为内阀座、4为外阀座、5为密封O形圈、6为密封垫圈、7为螺钉、8为阀芯、9为阀杆、10为手轮、11为左阀体、12为止渗部件。
具体实施方式
下面结合附图与具体实施例对本发明做进一步说明。
如图1所示，一种杆芯一体式金属硬密封球阀，包括左阀体11、右阀体1，其特征在于：左阀体11与右阀体1通过焊接形成一个整体式阀体，阀体中间设有与阀杆9一体铸造成的阀芯8；所述的阀杆9与阀体连接处设有止渗部件12；所述阀芯8还紧密贴合设置有金属阀座；所述阀座分为内阀座3和外阀座4，内阀座3通过螺钉固定在外阀座4里，内阀座3与外阀座4贴合处还设置有密封垫圈6，封垫圈6为柔性石墨。内阀座3与阀体之间还设置有补偿弹簧2。外阀座4与阀体之间设置有密封O形圈5。阀杆9与阀体之间设置有密封O形圈5。阀杆9上还用螺栓连接有手轮10。
在使用时，转动手轮10带动阀杆9转动，阀杆9与阀芯8采用一体式设计，杜绝了阀杆插头与阀芯槽口的磨损，提高球阀的使用寿命。阀座分为内外阀座，其中外阀座4与阀芯8之间形成金属硬密封，内阀座3设置在外阀座4里，通过螺钉7固定。内阀座3与外阀座4贴合处还设置有柔性石墨材质的密封垫圈6，柔性石墨的密封垫圈6使得内阀座3与外阀座4的结合处不会发生泄露。内外阀座的设计，使得阀座的加工更加容易，能够适应大批量生产，并且在外阀座4与阀芯8金属硬密封，阀芯8与外阀座4发生磨损报废后，阀芯8更换成本高，只需对阀芯8进行表面再处理，而根据再处理后的阀芯8尺寸与公差更换新的外阀座4，内阀座3仍能继续使用，节约经济成本。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (5)

1.一种杆芯一体式金属硬密封球阀，包括左阀体、右阀体，其特征在于：左阀体与右阀体通过焊接形成一个整体式阀体，阀体中间设有与阀杆一体铸造成的阀芯；所述的阀杆与阀体连接处设有止渗部件；所述阀芯还紧密贴合设置有金属阀座；所述阀座分为内阀座和外阀座，内阀座通过螺钉固定在外阀座里，内阀座与外阀座贴合处还设置有密封垫圈，内阀座与阀体之间还设置有补偿弹簧。
2.根据权利要求1所述的杆芯一体式金属硬密封球阀，其特征在于：所述外阀座与阀体之间设置有密封O形圈。
3.根据权利要求1所述的杆芯一体式金属硬密封球阀，其特征在于：所述密封垫圈为柔性石墨。
4.根据权利要求1所述的杆芯一体式金属硬密封球阀，其特征在于：所述阀杆与阀体之间设置有密封O形圈。
5.根据权利要求1所述的杆芯一体式金属硬密封球阀，其特征在于：所述阀杆上还用螺栓连接有手轮。
CN201410560958.6A 2014-10-21 2014-10-21 一种杆芯一体式金属硬密封球阀 Pending CN104265938A (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201028043Y (zh) * 2007-04-08 2008-02-27 王荣贵 耐磨金属硬密封球阀
CN202646764U (zh) * 2012-07-09 2013-01-02 浙江中正阀门有限公司 高温高压氧气专用球阀
CN202719181U (zh) * 2012-08-29 2013-02-06 上海高中压阀门股份有限公司 一种硬密封球阀
CN202756656U (zh) * 2012-08-20 2013-02-27 天津祥嘉流体控制系统有限公司 一种顶装式超低温球阀
CN203009897U (zh) * 2012-12-30 2013-06-19 江苏理想阀门有限公司 高温上装内调式整体球阀
CN204083336U (zh) * 2014-10-21 2015-01-07 成都市翻鑫家科技有限公司 一种杆芯一体式金属硬密封球阀

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201028043Y (zh) * 2007-04-08 2008-02-27 王荣贵 耐磨金属硬密封球阀
CN202646764U (zh) * 2012-07-09 2013-01-02 浙江中正阀门有限公司 高温高压氧气专用球阀
CN202756656U (zh) * 2012-08-20 2013-02-27 天津祥嘉流体控制系统有限公司 一种顶装式超低温球阀
CN202719181U (zh) * 2012-08-29 2013-02-06 上海高中压阀门股份有限公司 一种硬密封球阀
CN203009897U (zh) * 2012-12-30 2013-06-19 江苏理想阀门有限公司 高温上装内调式整体球阀
CN204083336U (zh) * 2014-10-21 2015-01-07 成都市翻鑫家科技有限公司 一种杆芯一体式金属硬密封球阀

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Application publication date: 20150107