CN116753312A - 一种连通高压流体与低压流体的快开阀门装置 - Google Patents
一种连通高压流体与低压流体的快开阀门装置 Download PDFInfo
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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
- F16K1/221—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 specially adapted operating means therefor
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- 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
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- 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
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
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- 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
- F16K1/52—Means for additional adjustment of the rate of flow
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
- F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston
- F16K31/1635—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston for rotating valves
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
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- F16K31/44—Mechanical actuating means
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- F16K31/563—Mechanical actuating means without stable intermediate position, e.g. with snap action for rotating or pivoting valves
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Abstract
本发明涉及低压至高压设备技术领域,具体涉及一种连通高压流体与低压流体的快开阀门装置。该装置包括:阀体为长方体,其中心轴线上设置圆柱体流体通道;阀体前后两端与高压侧流体端口、低压侧流体端口的相连;同时阀体两侧连接着开启滑道与关闭滑道;阀体内部设置有阀芯;阀芯上设置偏心O型圈与活结螺栓,碳纤维绳穿过活结螺栓带动阀芯转动;阀芯的两侧设置有开启转向杆、限位杆与关闭转向杆;开启滑道与关闭滑道内部均设置有滑块,滑块的一端通过碳纤维绳绕过开启(关闭)转向杆与阀芯相连,另一端伸出滑道,滑块中间装有O型圈结构保证密封;阀门开启,拉动伸出开启滑道的碳纤维绳;阀门关闭,拉动伸出关闭滑道的碳纤维绳。
Description
技术领域
本发明涉及高压流体快开领域,涉及一种快开阀门装置,特别涉及连通一侧为高压另一侧为低压流体的快开装置。
背景技术
阀门是流体系统的常用构件,连通高压流体与低压流体的快开阀门是流体控制与流体试验的重要元件,特别是在一些流体动力学试验中具有广泛的用途。如何实现连通高压流体与低压流体之间阀门的快速开启,实现两种不同压力流体之间的快速连通,保证快速开启效率具有重要意义。
现有技术中,解决高压流体与低压流体之间连通的快开阀门装置较少,尤其是当高压流体压力在30MPa左右、低压流体0MPa左右这种压力差大的可应用的快开阀门结构较少。目前市面上大多应用爆破剪切阀门,爆破剪切阀门为一次性阀门,在实现快开后需拆卸更换剪切帽。还有一些现有的快开阀门是通过手轮转动或电动或液压提高阀门阀芯的密封位置实现的快开,但此类快开阀门的快开速度仍较慢,若阀门开启速度过慢,会改变高压流体的流动形式。并且高压下流体的密封方式也存在挑战。可见,现有技术未能实现高压力差流体下可持续使用、快开速度更快、密封性能稳定的快开阀门需求。因此,保障涉及一种连通高压流体与低压流体的可持续试验、稳定的快速开启阀门是高压流体快开阀门的关键问题。
发明内容
本发明为克服现有技术的不足,解决面对高压流体以及低压流体之间连接的快开需求,提出一种快开阀门装置。
本发明的技术方案是:
一种连通高压流体与低压流体的快开阀门装置,所述阀体为长方体,阀体中心轴线位置有直径为D的流体通道;所述阀体的前、后两端分别设置有高压侧端盖以及低压侧端盖;所述阀体左右两端分别设置有关闭滑道与开启滑道;所述阀体内部设置有开启转向杆、关闭转向杆、限位杆;所述阀体中央位置设置有阀芯杆与阀芯。
进一步,所述阀芯的固定方式是通过阀芯杆穿过阀体与阀芯;阀芯上设置有O形圈密封槽,将阀芯密封圈安装在密封槽上可在快开阀门处于关闭位置时保证高压流体管路压力P1与低压流体管路压力P2的密封能力;阀芯杆上方设置有阀芯杆上紧螺母与阀体通过螺纹连接并在中间设置有阀芯杆密封垫;可实现阀芯杆部位密封。
进一步,所述关闭转向杆穿过阀体关闭杆孔,所述关闭转向杆上方设置有关闭转向杆上紧螺母与阀体通过螺纹连接并在中间设置有关闭转向杆密封垫;可实现关闭转向杆部位密封。
进一步,所述关闭滑道与阀体通过螺纹连接并在中间设置有关闭滑道密封垫;所述关闭滑道内部设置有关闭滑道驱动活塞,所述关闭滑道驱动活塞上设置有O形圈密封槽,所述关闭滑道密封圈设置在密封槽内;可实现关闭滑道部位密封。
进一步,所述开启滑道与阀体通过螺纹连接并在中间设置有开启滑道密封垫;所述开启滑道内部设置有开启滑道驱动活塞,所述开启滑道驱动活塞上设置有O形圈密封槽,所述开启滑道密封圈设置在密封槽内;可实现开启滑道部位密封。
进一步,所述高压侧端盖与阀体通过螺纹连接并在中间设置高压侧密封垫;所述高压侧端盖上设置有NPT螺纹,可通过NPT螺纹密封连接高压侧流体管道;可实现高压侧部位密封。
进一步,所述低压侧端盖与阀体通过螺纹连接并在中间设置低压侧密封垫;所述低压侧端盖上设置有NPT螺纹,可通过NPT螺纹密封连接低压侧流体管道;所述定杆块设置在开启转向杆+限位杆与低压侧密封垫之间;可实现低压侧部位密封。
进一步,所述高压侧活结螺栓与低压侧活结螺栓设置在阀芯上;所述阀芯与开启滑道驱动活塞以及关闭滑道驱动活塞通过碳纤维绳穿过孔洞相匹配;阀体为固定部件,阀芯与关闭滑道驱动活塞及开启滑道驱动活塞为运动部件。
进一步,根据连通的高压流体管道压力P1与低压流体管道压力P2以及连通的管道尺寸,若压力差偏大或管口尺寸较小时,所述的杆类部件材料使用高强钢。
本发明的工作原理如下:高压侧流体压力为P1,低压侧流体压力为P2,要求P1>P2,阀芯初始关闭状态时所需的摩擦转矩为Mf;阀门开始需要快速拉动或用其他种快速施力的设备(如气锤、重物下落撞击等)拴在开启滑道驱动活塞上的碳纤维绳,使得阀门快开;当阀门开始转动开启时高压侧流体压力P1与低压侧流体压力P2会对阀芯产生促进快开阀门开启的压力转矩MP1与MP2,MP1与MP2会进一步加速快开阀的开启速度;所述阀芯快开后迅速到达限位杆,避免阀门开度过大;具体阀门受力如图8所示。
所述快开阀门在开启后如需复位关闭,拉动拴在关闭滑道驱动活塞上的碳纤维绳,使得阀门关闭;所述阀芯关闭后旋转到达限位杆,避免阀门关闭过度。
本发明的有益效果是:
在结构形式方面,本发明采用非焊接连接各阀门部件的结构形式,通过全螺纹连接不进行焊接,易于进行部件的拆卸、维修、更换。本发明整体流道的密封采用工程上经验证可靠密封高压流体的(NPT螺纹+密封垫+O形圈)的密封方式,克服了高压流体难以密封的缺点。
在快开阀开启速度方面,本发明利用碳纤维绳与高压流体自身对阀芯带来的压力转矩,实现比目前现有结构更快的快开阀开启速度,尽可能减小阀门在开启过程中对高压流体产生的扰动影响。
在快开阀门可持续连续使用方面,本发明通过碳纤维绳对快开阀阀芯实现复位,不用经常对快开阀门进行拆卸复位,大大缩短了试验与生产中的人力以及时间。
在结构可靠性与替换性方面,本发明的阀体结构设计简单,易于装拆,且密封圈、密封垫的材质及尺寸均为标准规定。快开阀整体各部件易于加工更换维护。
附图说明
图1为本发明的一种快开阀门装置结构简图(3/4轴测图);
图2为本发明的关闭滑道局部结构图;
图3为本发明的高压侧端盖部分局部结构图;
图4(a)为阀门关闭状态下阀芯部分局部结构图(俯视解剖);(b)阀门开启状态下阀芯部分局部结构图(俯视解剖);(c)阀门关闭状态下阀芯部分局部结构图(主视解剖);
图5为本发明快开阀门装置的定杆块零件结构示意图(轴测图);
图6为本发明的开启滑道局部结构图;
图7为本发明的低压侧端盖部分局部结构图。
图8为本发明具体阀门受力示意图。
图中标记为:1.关闭滑道;1-1.关闭滑道堵头;1-2.关闭滑道驱动活塞;1-3.关闭滑道密封圈;1-4.关闭滑道密封垫;2.高压侧端盖;2-1.高压侧密封垫;3.阀体;4.阀芯杆;4-1.阀芯密封圈;4-2.高压侧活结螺栓;4-3.低压侧活结螺栓;4-4.阀芯;4-5.阀芯杆上紧螺母;4-6.阀芯杆密封垫;5.开启滑道;5-1.开启滑道堵头;5-2.开启滑道驱动活塞;5-3.开启滑道密封圈;5-4.开启滑道密封垫;6.低压侧端盖;6-1.低压侧密封垫;7.关闭转向杆;7-1.关闭转向杆密封垫;7-2.关闭转向杆上紧螺母;8.开启转向杆;9.限位杆;10.定杆块。
具体实施方式
以下结合附图,对本发明作进一步说明。
本发明方法的实现过程如下:
一种快开阀门装置:
组装阀芯组件,将阀芯密封圈4-1安装于阀芯4-4的密封圈安装槽内,将高压侧活结螺栓4-2与阀芯4-4通过螺纹连接,将低压侧活结螺栓4-3与阀芯4-4通过螺纹连接,将阀芯4-4安装于阀体3中,将阀芯杆4插入阀体3上的阀芯安装孔中同时穿过阀芯4-4,将阀芯杆密封垫4-6安装于阀体3上,将阀芯杆上紧螺母与阀体3通过螺纹连接并压紧阀芯杆密封垫4-6完成阀芯杆密封,将碳纤维绳穿过高压侧活结螺栓4-2,将另一根碳纤维绳穿过低压侧活结螺栓4-3,完成阀芯组件的组装。
组装关闭转向杆组件,将关闭转向杆7插入阀体3上,将关闭转向杆密封垫7-1安装于阀体3的关闭转向杆密封面位置,将关闭转向杆上紧螺母7-2与阀体3通过螺纹连接并压紧关闭转向杆密封垫7-1完成关闭转向杆密封,完成关闭转向杆组件的组装。
组装限位杆及开启转向杆组件,将限位杆9安装于阀体3加工出的滑道内,将开启转向杆8安装于阀体3加工出的滑道内,将定杆块10安装于阀体3,定杆块10将限位杆9与开启转向杆8固定在特定位置防止二者位置变化,完成限位杆及开启转向杆组件的组装。
组装开启滑道组件,将此前组装阀芯组件过程中穿过低压侧的碳纤维绳绕过开启转向杆8并穿过阀体3侧壁安装开启滑道5的孔,将碳纤维绳系于开启滑道驱动活塞5-2的一端,运用新的一根碳纤维绳系于开启滑道驱动活塞5-2的另一端,将开启滑道密封圈5-3安装于开启滑道驱动活塞5-2的密封圈安装槽内,将开启滑道驱动活塞安装于开启滑道5内部,将系于开启滑道驱动活塞5-2外侧的碳纤维绳伸出开启滑道堵头5-1中心的孔此绳起到拉动快开阀门开启的牵引施力绳,将开启滑道堵头5-1与开启滑道5通过螺纹连接,将开启滑道密封垫5-4安装于阀体3的开启滑道密封面位置,将开启滑道5与阀体3通过螺纹连接并压紧开启滑道密封垫5-4,完成开启滑道的密封,完成开启滑道组件的安装。
组装关闭滑道组件,将此前组装阀芯组件过程中穿过高压侧的碳纤维绳绕过关闭转向杆7并穿过阀体3侧壁安装关闭滑道1的孔,将碳纤维绳系于关闭滑道驱动活塞1-2的一端,运用新的一根碳纤维绳系于关闭滑道驱动活塞1-2的另一端,将关闭滑道密封圈1-3安装于关闭滑道驱动活塞1-2的密封圈安装槽内,将关闭滑道驱动活塞安装于关闭滑道1内部,将系于关闭滑道驱动活塞1-2外侧的碳纤维绳伸出关闭滑道堵头1-1中心的孔此绳起到拉动快开阀门复位关闭的牵引施力绳,将关闭滑道堵头1-1与关闭滑道1通过螺纹连接,将关闭滑道密封垫1-4安装于阀体3的关闭滑道密封面位置,将关闭滑道1与阀体3通过螺纹连接并压紧关闭滑道密封垫1-4,完成关闭滑道的密封,完成关闭滑道组件的安装。
组装高压侧连接组件,将高压侧密封垫2-1安装于阀体3的高压侧密封面位置,将高压侧端盖2与阀体3通过螺纹连接并压紧高压侧密封垫2-1,完成高压侧连接组件的密封,完成高压侧连接组件的安装。
组装低压侧连接组件,将低压侧密封垫6-1安装于阀体3的低压侧密封面位置,将低压侧端盖6与阀体3通过螺纹连接并压紧高压侧密封垫6-1,完成低压侧连接组件的密封,完成低压侧连接组件的安装。
将具有NPT螺纹的高压流体管道与高压侧端盖2相连,将具有NPT螺纹的低压流体管道与低压侧端盖6相连,完成本发明的组装过程。
在本发明的安装过程中,通过高压侧端盖2内部加工的NPT螺纹与高压流体管道相连接,通过低压侧端盖6内部加工的NPT螺纹与低压流体管道相连接,利用NPT螺纹具有密封性的特征保证高压流体管路与低压流体管路的密封性,将拴在关闭滑道驱动活塞1-2上的碳纤维绳拉动,直至阀芯4-4到达限位杆9,此时快开阀门处于关闭状态,连通高压管路达到高压P1,连通低压管路达到低压P2,完成安装。
在本发明的工作过程中,在快开阀门关闭状态下,高压流体密封由高压侧端盖2+高压侧密封垫2-1+阀芯密封圈4-1+关闭滑道密封圈1-3维持高压压力P1不变,低压流体密封由低压侧端盖6+低压侧密封垫6-1+阀芯密封圈4-1+开启滑道密封圈5-3维持低压压力P2不变。当需要快开工况时,由操作者迅速拉动拴在开启滑道驱动活塞5-2上的碳纤维绳或利用气锤或利用重物滑轨敲击等迅速施力工具,阀芯4-4绕阀芯杆4迅速旋转打开至阀门开启位置,当阀芯4-4转至限位杆9时完成阀门开启。在快开阀快开过程中需要施加的最大力为克服阀芯4-4处于关闭位置时的摩擦转矩,在阀芯4-4开始转动后,由高压流体施加在阀芯4-4上的高压转矩会促进阀门的快开。
在本发明的维护过程中,将高压流体管路与高压侧端盖2拆下,将低压流体管路与低压侧端盖6拆下,此时可以更换高压侧密封垫2-1与低压侧密封垫6-1。将关闭滑道1从阀体3拆下,将开启滑道5从阀体3拆下,此时可将关闭滑道驱动活塞1-2与开启滑道驱动活塞5-2取出,可以更换关闭滑道密封圈1-3、关闭滑道密封垫1-4、开启滑道密封圈5-3、开启滑道密封垫5-4。将定杆块10拆下,可更换开启转向杆8与限位杆9。将关闭转向杆上紧螺母7-2拆下,可更换关闭转向杆7与关闭转向杆密封垫7-1。将阀芯杆上紧螺母4-5拆下,可更换阀芯杆4、阀芯密封圈4-1、高压侧活结螺栓4-2、低压侧活结螺栓4-3、阀芯4-4、阀芯杆密封垫4-6。
以上所述,仅是本发明的一个实施案例,并非对本发明做任何形式上的限制,虽然本发明已经将较合适的实施案例揭示如上,然而并非用以限定本发明,任何熟悉本专业的技术人员,在不脱离本发明技术方案范围内,当可利用上述揭示的结构及技术内容做出某些修改而成为等同变化的等效实施案例。
例如,关闭滑道密封垫1-4、高压侧密封垫2-1、关闭转向杆密封垫7-1、低压侧密封垫6-1、阀芯杆密封垫4-6、开启滑道密封垫5-4可不采用垫片形式,任何经过工程经验认可的密封结构形式如O形圈、其他种密封垫片形式等均可用于本发明的密封。
又例如,阀芯4-4结构形式,目前本案例为单偏心单面O形圈的密封形式,此种结构也可采用单偏心双面O形圈、双偏心O型圈密封结构、三偏心O型圈密封结构以及将O型圈嵌入阀体3之上的密封结构形式等均可用于本发明的密封。
又例如,关闭转向杆7、开启转向杆8、限位杆9案例中的安装定位形式,此种结构也可采用点焊焊接等其他方式固定于阀体3。
又例如,连接阀芯4-4与关闭滑道驱动活塞1-2的碳纤维绳及高压侧活结螺栓4-2可以更换成其他种连接方式,连接阀芯4-4与开启滑道驱动活塞5-2的碳纤维绳及低压侧活结螺栓4-3可以更换成其他种连接方式。
又例如,高压侧端盖2与高压流体管路的连接密封方式运用NPT螺纹,低压侧端盖6与低压流体管路的连接密封方式运用NPT螺纹,任何经过工程经验认可的密封连接方式,如锥度硬密封、普通螺纹+O形圈/密封垫等均可用于本发明的密封。
又例如,快开阀门连接高压流体管路与低压流体管路,同样也适用于连接两条高压流体管路,要求仅为将低压流体管路P2更换为低于高压流体管路P1的高压流体P3。
但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施案例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案范围内。
Claims (9)
1.一种连通高压流体与低压流体的快开阀门装置,其特征在于,所述阀体(3)为长方体,阀体(3)中心轴线位置有直径为D的流体通道;所述阀体(3)的前、后两端分别设置有高压侧端盖(2)以及低压侧端盖(6);所述阀体(3)左右两端分别设置有关闭滑道(1)与开启滑道(5);所述阀体(3)内部设置有开启转向杆(8)、关闭转向杆(7)、限位杆(9);所述阀体(3)中央位置设置有阀芯杆(4)与阀芯(4-4)。
2.根据权利要求1所述的一种快开阀门装置,其特征在于:所述阀芯(4-4)的固定方式是通过阀芯杆(4)穿过阀体(3)与阀芯(4-4);阀芯(4-4)上设置有O形圈密封槽,将阀芯密封圈(4-1)安装在密封槽上可在快开阀门处于关闭位置时保证高压流体管路压力P1与低压流体管路压力P2的密封能力;阀芯杆(4)上方设置有阀芯杆上紧螺母(4-5)与阀体(3)通过螺纹连接并在中间设置有阀芯杆密封垫(4-6);可实现阀芯杆部位密封。
3.根据权利要求1所述的一种快开阀门装置,其特征在于:所述关闭转向杆(7)穿过阀体(3)关闭杆孔,所述关闭转向杆(7)上方设置有关闭转向杆上紧螺母(7-2)与阀体(3)通过螺纹连接并在中间设置有关闭转向杆密封垫(7-1);可实现关闭转向杆部位密封。
4.根据权利要求1所述的一种快开阀门装置,其特征在于:所述关闭滑道(1)与阀体(3)通过螺纹连接并在中间设置有关闭滑道密封垫(1-4);所述关闭滑道(1)内部设置有关闭滑道驱动活塞(1-2),所述关闭滑道驱动活塞上设置有O形圈密封槽,所述关闭滑道密封圈(1-3)设置在密封槽内;可实现关闭滑道部位密封。
5.根据权利要求1所述的一种快开阀门装置,其特征在于:所述开启滑道(5)与阀体(3)通过螺纹连接并在中间设置有开启滑道密封垫(5-4);所述开启滑道(5)内部设置有开启滑道驱动活塞(5-2),所述开启滑道驱动活塞上设置有O形圈密封槽,所述开启滑道密封圈(5-3)设置在密封槽内;可实现开启滑道部位密封。
6.根据权利要求1所述的一种快开阀门装置,其特征在于:所述高压侧端盖(2)与阀体(3)通过螺纹连接并在中间设置高压侧密封垫(2-1);所述高压侧端盖(2)上设置有NPT螺纹,可通过NPT螺纹密封连接高压侧流体管道;可实现高压侧部位密封。
7.根据权利要求1所述的一种快开阀门装置,其特征在于:所述低压侧端盖(6)与阀体(3)通过螺纹连接并在中间设置低压侧密封垫(6-1);所述低压侧端盖(6)上设置有NPT螺纹,可通过NPT螺纹密封连接低压侧流体管道;所述定杆块(10)设置在开启转向杆(7)+限位杆(8)与低压侧密封垫(6-1)之间;可实现低压侧部位密封。
8.根据权利要求1-7任一项所述的一种快开阀门装置,其特征在于:高压侧活结螺栓(4-2)与低压侧活结螺栓(4-3)设置在阀芯(4-4)上;所述阀芯(4-4)与开启滑道驱动活塞(5-2)以及关闭滑道驱动活塞(1-2)通过碳纤维绳穿过孔洞相匹配;阀体(3)为固定部件,阀芯(4-4)与关闭滑道驱动活塞(1-2)及开启滑道驱动活塞(5-2)为运动部件;
高压侧流体压力为P1,低压侧流体压力为P2,要求P1>P2,阀芯(4-4)初始关闭状态时所需的摩擦转矩为Mf;阀门开始需要快速拉动或用其他种快速施力的设备(如气锤、重物下落撞击等)拴在开启滑道驱动活塞(5-2)上的碳纤维绳,使得阀门快开;当阀门开始转动开启时高压侧流体压力P1与低压侧流体压力P2会对阀芯(4-4)产生促进快开阀门开启的压力转矩MP1与MP2,MP1与MP2会进一步加速快开阀的开启速度;所述阀芯(4-4)快开后迅速到达限位杆(9),避免阀门开度过大;
所述快开阀门在开启后如需复位关闭,拉动拴在关闭滑道驱动活塞(1-2)上的碳纤维绳,使得阀门关闭;所述阀芯(4-4)关闭后旋转到达限位杆(9),避免阀门关闭过度。
9.根据权利要求1-7任一项所述的一种快开阀门装置,其特征在于:根据连通的高压流体管道压力P1与低压流体管道压力P2以及连通的管道尺寸,若压力差偏大或管口尺寸较小时,所述的杆类部件材料使用高强钢。
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