CN102486234B - 一种节流阀 - Google Patents

一种节流阀 Download PDF

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Publication number
CN102486234B
CN102486234B CN201010573737.4A CN201010573737A CN102486234B CN 102486234 B CN102486234 B CN 102486234B CN 201010573737 A CN201010573737 A CN 201010573737A CN 102486234 B CN102486234 B CN 102486234B
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valve
chamber
throttle valve
cone
valve body
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CN102486234A (zh
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张传忠
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Qinzhou AuraSource Technology Inc
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Qinzhou AuraSource Technology Inc
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Priority to CN201010573737.4A priority Critical patent/CN102486234B/zh
Priority to PCT/CN2011/080286 priority patent/WO2012071939A1/zh
Priority to US13/991,415 priority patent/US20140103236A1/en
Priority to EP11845686.2A priority patent/EP2647895A1/en
Publication of CN102486234A publication Critical patent/CN102486234A/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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure 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
    • 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
    • F16K5/04—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 cylindrical surfaces; Packings therefor
    • F16K5/0442—Spindles and actuating means

Abstract

本发明公开了一种节流阀。在现有的浆体输送管道中，普遍存在浆体颗粒对节流阀的密封件的磨损和颗粒沉积造成阻塞等问题，严重影响节流阀的寿命和调节比例范围的设置。本发明公开的节流阀，包括能够相对运动并且其接触面保持密封配合状态的两个密封件，阀的流入口和流出口分别位于两密封件上，在两密封件的接触面上各设置一个半锥形调节腔，调节腔尖端相对，分别与流入口和流出口连通，当两个半锥形调节腔的接触面至少有一部分重叠时共同构成连通流入口和流出口的通路。这种节流阀可以实现大比例的精确调节并具有耐压耐磨损的特点，适用于浆体输送管道，也适用于液体其他流体输送管道。

Description

一种节流阀
技术领域
本发明涉及一种节流阀，进一步涉及一种用于浆体输送管道的可大比例调节的滑阀式或旋塞式节流阀。 
背景技术
在现有的浆体输送管道中，普遍存在浆体颗粒对节流阀的密封件的磨损和颗粒沉积造成阻塞等问题，严重影响节流阀的寿命和调节比例范围的设置。尤其是当节流阀开启面积较小，阀门前后浆体压力差较大，浆体流呈喷射状态时，阀门调节件易于被迅速磨损。 
发明内容
本发明公开了一种节流阀，可以实现大比例的精确调节并具有耐压耐磨损的特点。 
其具体技术方案是：一种节流阀，包括能够相对运动并且其接触面保持密封配合状态的两个密封件，阀的流入口和流出口分别位于相互接触密封配合的两密封件上，其特征是在两密封件的接触面上各设置一个半锥形调节腔，调节腔尖端相对，分别与流入口和流出口连通，当两个半锥形调节腔的接触面至少有一部分重叠时共同构成连通流入口和流出口的通路，调节两个密封件即两个半锥形调节腔的相对位置，能够调节该通路的通过能力，当两个半锥形通道的接触面不相重叠时，节流阀关闭。 
所述的两密封件的相对运动包括相对滑动，如同往复式滑阀开闭动作，或相对转动，如同旋转式滑阀或旋塞阀的开闭动作。 
所述的半锥形调节腔，是指有一个侧面与所述的两个密封件的密封配合面重合的从粗的一端向细的一端逐渐过渡的通道，并不是指严格意义的几何半锥体，该侧面称为半锥形调节腔的接触面。所述的密封配合面可以是平面，也可以是曲面。根据实际应用需要，从粗的一端向细的一端的过渡的变化方式可以呈线性改变，也可以呈指数改变或其他非线形改变。在设计为大比例调节的节流阀时，呈指数改变为优选方式。 
这种节流阀的流量控制的关键部位是由两个半锥形调节腔共同围成的类圆形或椭圆形通道，这部分通道的截面积是节流阀整个流通通道的最狭窄部位，在不同的流量控制状态下是由两个半锥形调节腔的不同部位围成的，因此浆体对调节腔的磨损是分散的，而且该调节腔的局部部件可以用高硬度的但抗张强度不高的耐磨材料如陶瓷制成，这是该节流阀耐磨损的根本原因。 
不论半锥形调节腔的变化方式是线性的或指数行的，在正常调节范围内，作为流量控制的关键部位的流通通道的最狭窄部位的横截面始终为的类圆形或椭圆形，不会形成狭缝，不会阻挡浆体内颗粒的通过，因而即使在流量很小的情况下，仍然可以保证阀的畅通。因此，这种节流阀可以设计成有效流量调节范围非常大的节流阀，比如1000∶1。 
基于以上技术特点，这种节流阀特别适用于浆体输送管道，也可用于其他流体的输送管道。 
下面结合具体实施例对本发明作进一步说明。 
附图说明
图1.往复式滑阀结构的节流阀的外观立体示意图 
图2.往复式滑阀结构的节流阀的剖面立体示意图，沿正中线剖开 并移去前面部分，处于半开状态 
图3.往复式滑阀结构的节流阀的剖面立体示意图，处于全开状态 
图4.往复式滑阀结构的节流阀的剖面立体示意图，处于全关状态 
图5.旋转式滑阀结构的节流阀的外观立体示意图 
图6.旋转式滑阀结构的节流阀的剖面立体示意图，沿图1中的曲线A-B-C-D线剖开阀体并移去上半部的外面部分，处于半开状态 
图7.旋转式滑阀结构的节流阀的剖面立体示意图，沿图1中的曲线A-B-C-D线剖开阀体并移去外面部分，处于半开状态 
图8.旋转式滑阀结构的节流阀的剖面立体示意图，处于全开状态 
图9.旋转式滑阀结构的节流阀的剖面立体示意图，处于全关状态 
图10.旋塞式节流阀的立体示意图，外观 
图11.旋塞式节流阀的剖面立体示意图，剖开阀并将其前上部分移去 
图12.旋塞式节流阀的剖面立体示意图，剖开阀并将其上半部分移去 
图13.旋塞式节流阀的剖面立体示意图，剖开阀的前半部分并将其移去，处于半开状态 
图14.旋塞式节流阀的剖面立体示意图，处于全开状态 
图15.旋塞式节流阀的剖面立体示意图，处于全开状态 
具体实施 
实施例1
类似往复式滑阀结构的节流阀，参见附图1-4。 
该节流阀由上阀体11、下阀体12、连接槽13和驱动装置14构成，其中的上阀体和下阀体上分别设有输入口111、输入调节腔112和输出口121、输出调节腔122。由连接槽在上阀体和下阀体之间形成密封的滑动连接，下阀体与连接槽为固定连接，上阀体与连接槽为滑动连接，输入调节腔和输出调节腔的尖端相对，从粗的一端向细的一端的过渡的变化方式呈指数变化方式。驱动装置由设置在连接槽上的齿条131和设置在上阀体上的摇柄141和齿轮142组成。与上阀体输入口连接的输送管15为软管。 
附图2.附图3.附图4.分别显示了节流阀处于半开、全开和全关状态时输入调节腔和输出调节腔的相对位置。 
实施例2
类似旋转式滑阀结构的节流阀，参见附图5-9。 
该节流阀由上阀体21、下法体22、连接环23和驱动装置24构成，其中的上阀体和下阀体上分别有输入口211、弯曲成弧状的半锥形的输入调节腔212、输出口221、同样弯曲成弧形的半锥形的输出调节腔222。由连接环在上阀体和下阀体之间形成密封的旋转连接，下阀体与连接环为固定连接，上阀体与连接槽为旋转连接，输入调节腔和输出调节腔的尖端相对，从粗的一端向细的一端的过渡的变化方式呈指数变化方式。驱动装置24由设置在连接环上的摇柄241、蜗杆242和设置在上阀体上的蜗轮齿环213组成。当与节流阀两端连接的管道均为硬管时，可以增加一段输送管26通过一个旋转密封接头25与上阀体输入口连接。 
为了减小上阀体和连接环和之间的摩擦力，在上阀体和连接环之间 设置了滚珠27及相应的环形滚珠轨道。 
附图7.附图8.附图9.分别显示了节流阀处于半开、全开和全关状态时输入调节腔和输出调节腔的相对位置。 
实施例3
旋塞阀结构的节流阀，参见附图10-15。 
该节流阀由阀体31、旋塞32、阀盖33和密封填料34构成，其中的阀体上分别有输入口311、阀腔和输出口312，旋塞上设置了连通孔321，以上四个部件的装配关系与普通旋塞阀相同，其不同点是在阀体和旋塞上分别设置了与阀体输入口相连通的半锥形的输入调节腔313以及与旋塞的连通孔相延续的半锥形的输出调节腔322，在阀芯的整个工作旋转行程内，其连通孔与阀壳的输出口均处于连通状态。 
为了减小全开至全关之间的旋转角度并保持通道的截面积，旋塞连通孔和与之相连的阀体输入口和输出口局部均设置成类椭圆形横截面，相应的半锥形的输入调节腔和半锥形的输出调节腔的横截面为半椭圆形。 
附图13.附图14.附图15.分别显示了节流阀处于半开、全开和全关状态时输入调节腔和输出调节腔的相对位置。 

Claims (7)

1.一种节流阀，包括能够相对运动并且其接触面保持密封配合状态的两个密封件，阀的流入口和流出口分别位于两密封件上，其特征是在两密封件的接触面上各设置一个半锥形调节腔，调节腔尖端相对，分别与流入口和流出口连通，当两个半锥形调节腔的接触面至少有一部分重叠时共同构成连通流入口和流出口的通路。
2.如权利要求1所述的节流阀，其特征是所述的两密封件的相对运动为相对滑动。
3.如权利要求1所述的节流阀，其特征是所述的两密封件的相对运动为相对转动。
4.如权利要求1-3之一所述的节流阀，其特征是所述的半锥形调节腔从粗的一端向细的一端的过渡的变化方式呈线性改变。
5.如权利要求1-3之一所述的节流阀，其特征是所述的半锥形调节腔从粗的一端向细的一端的过渡的变化方式呈指数改变。
6.如权利要求3所述的节流阀，其特征是所述的两个密封件分别为阀体和旋塞，其中的阀体上分别有输入口、阀腔和输出口，旋塞上设置了连通孔，阀体和旋塞上分别设置了与阀体输入口相连通的半锥形的输入调节腔以及与旋塞的连通孔相延续的半锥形的输出调节腔，在阀芯的整个工作旋转行程内，旋塞的连通孔与阀体的输出口均处于连通状态。
7.如权利要求6所述的节流阀，其特征是所述的旋塞连通孔和与之相连的阀体输入口和输出口局部均设置成类椭圆截面，半锥形的输入调节腔和半锥形的输出调节腔的横截面为半椭圆形。
CN201010573737.4A 2010-12-03 2010-12-03 一种节流阀 Expired - Fee Related CN102486234B (zh)

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CN201010573737.4A CN102486234B (zh) 2010-12-03 2010-12-03 一种节流阀
PCT/CN2011/080286 WO2012071939A1 (zh) 2010-12-03 2011-09-28 节流阀
US13/991,415 US20140103236A1 (en) 2010-12-03 2011-09-28 Throttle valve
EP11845686.2A EP2647895A1 (en) 2010-12-03 2011-09-28 Throttle valve

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CN201010573737.4A CN102486234B (zh) 2010-12-03 2010-12-03 一种节流阀

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KR20200069841A (ko) * 2018-12-07 2020-06-17 현대자동차주식회사 차량의 안전 하차 보조 장치, 그를 포함한 시스템 및 그 방법
CN112212066A (zh) * 2020-10-09 2021-01-12 陈科 一种减速水阀

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US4128109A (en) * 1975-12-30 1978-12-05 Hydrocarbon Research, Inc. Pressure let-down valve assembly for handling abrasive liquids
EP0085251A1 (en) * 1981-12-23 1983-08-10 Vaal Reefs Exploration And Mining Company Limited Letdown valves
TW200702579A (en) * 2005-02-22 2007-01-16 Mks Instr Inc Valve assembly having improved pump-down performance
CN201363445Y (zh) * 2009-01-08 2009-12-16 陈曙光 局部调节球阀
CN201561154U (zh) * 2009-12-09 2010-08-25 天津市富赛克阀门有限公司 恶劣工况用金属硬密封球阀

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CN102486234A (zh) 2012-06-06
US20140103236A1 (en) 2014-04-17
EP2647895A1 (en) 2013-10-09
WO2012071939A1 (zh) 2012-06-07

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