CN105443773A - 一种气体流量控制比例阀 - Google Patents
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- 238000012360 testing method Methods 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract 5
- 238000009434 installation Methods 0.000 abstract 3
- 230000005389 magnetism Effects 0.000 abstract 2
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- 238000004587 chromatography analysis Methods 0.000 description 1
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- 239000007791 liquid phase Substances 0.000 description 1
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
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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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
Abstract
一种气体流量控制比例阀,其特征在于:它包括阀芯(1)和阀体(2),阀芯(1)装在隔磁套筒(3)的安装槽(301),安装槽(301)内装有弹簧(4)抵住阀芯(1)的尾端,隔磁套筒(3)外套装有磁环(5),磁环(5)和隔磁套筒(3)插装在线圈组件(6)内,隔磁套筒(3)尾端伸出线圈组件(6)的一端用卡簧(7)固定,隔磁套筒(3)头部装在阀体(2)的套筒安装槽(200);本发明提供的一种气体流量控制比例阀,能够动态稳定的控制气相色谱仪测试时进气微小压力微小流量。
Description
技术领域
本发明属于分析仪器辅助设备技术领域,具体讲就是涉及一种用于气相色谱仪测试时进气用的气体流量控制比例阀。
背景技术
气相色谱仪是一种多组份混合物的分离、分析工具,它是以气体为流动相,采用冲洗法的柱色谱技术。当多组份的分析物质进入到色谱柱时,由于各组分在色谱柱中的气相和固定液液相间的分配系数不同,因此各组份在色谱柱的运行速度也就不同,经过一定的柱长后,顺序离开色谱柱进入检测器,经检测后转换为电信号送至数据处理工作站,从而完成了对被测物质的定性定量分析。稳定气体控制是气相色谱仪的关键技术,气相色谱仪测试样品首先需要低压的、动态的、稳定的各种气体载体。目前市面上常见用于控制气体流量的阀体存在着不同的问题,要么控制的精密传统阀体不能动态控制气体流量;或者,能够哦动态控制的阀体,但对低压小流量的控制又不够精确。
发明内容
本发明的目的就是针对现有的气相色谱仪测试时进气用的控制阀体精度不高的技术缺陷,提供一种气体流量控制比例阀,能够动态稳定的控制气相色谱仪测试时进气微小压力微小流量。
技术方案
为了实现上述技术目的,本发明设计一种气体流量控制比例阀,其特征在于:它包括阀芯和阀体,阀芯装在隔磁套筒的安装槽,安装槽内装有弹簧抵住阀芯的尾端,隔磁套筒外套装有磁环,磁环和隔磁套筒插装在线圈组件内,隔磁套筒尾端伸出线圈组件的一端用卡簧固定,隔磁套筒头部装在阀体的套筒安装槽;
所述阀体包括壳体,气阻气嘴固定安装在壳体内的气嘴安装槽内,壳体内设有气孔使安装槽气嘴安装槽与外界连通,气孔上装有过滤装置;
所述阀芯包括芯轴,芯轴前端设有凹槽,凹槽内装有橡胶垫安装座,橡胶垫安装座内装有橡胶垫,橡胶垫安装座后端抵住复位弹簧,所述芯轴前端装有端盖,端盖上与橡胶垫对应处设有过孔。
进一步,所述线圈组件和阀体间装有垫片。
进一步,所述过滤装置包括滤网,滤网通过螺母锁在气孔的过滤安装槽内。
进一步,所述气阻气嘴与壳体间装有第一密封圈。
进一步,所述隔磁套筒头部装在阀体的套筒安装槽,阀芯装在隔磁套筒的安装槽,橡胶垫受复位弹簧作用抵住气阻气嘴。
进一步,所述弹簧为宝塔弹簧。
进一步,所述隔磁套筒与阀体间装有第二密封圈。
有益效果
本发明提供的一种气体流量控制比例阀,能够动态稳定的控制气相色谱仪测试时进气微小压力微小流量。
附图说明
附图1是本发明实施例的结构示意图。
附图2是本发明实施例中阀体结构示意图。
附图3是本发明实施例中阀芯结构示意图。
附图4是本发明实施例中隔磁套筒结构示意图。
具体实施方式
下面结合附图和实施例,对本发明做进一步说明。
实施例
如附图1~4所示,一种气体流量控制比例阀,其特征在于:它包括阀芯1和阀体2,阀芯1装在隔磁套筒3的安装槽301,安装槽301内装有弹簧4抵住阀芯1的尾端,隔磁套筒3外套装有磁环5,磁环5和隔磁套筒3插装在线圈组件6内,隔磁套筒3尾端伸出线圈组件6的一端用卡簧7固定,所述隔磁套筒3头部装在阀体2的套筒安装槽200,阀芯1装在隔磁套筒3的安装槽301,橡胶垫103受复位弹簧104作用抵住气阻气嘴202。
所述阀体2包括壳体201,气阻气嘴202固定安装在壳体201内的气嘴安装槽201a内,壳体201内设有气孔201b使安装槽气嘴安装槽201a与外界连通,气孔201b上装有过滤装置203;
所述阀芯1包括芯轴101,芯轴101前端设有凹槽101a,凹槽101a内装有橡胶垫安装座102,橡胶垫安装座102内装有橡胶垫103,橡胶垫安装座102后端抵住复位弹簧104,所述芯轴101前端装有端盖105,端盖105上与橡胶垫103对应处设有过孔105a。
优选地,所述线圈组件6和阀体2间装有垫片8。
优选地,所述过滤装置203包括滤网203a,滤网203a通过螺母203b锁在气孔201b的过滤安装槽201b01内。
优选地,所述气阻气嘴202与壳体201间装有第一密封圈204。
优选地,所述弹簧4为宝塔弹簧。
优选地,所述隔磁套筒3与阀体2间装有第二密封圈205。
本实施例中磁路产生的机械量(力或力矩和位移)与衔铁的位移无关,而与输入电信号(电流)的大小成比例。这个水平力再连续地控制液压阀阀芯的位置,进而实现连续地控制气路系统的流量。通过比例电磁铁可以在不同的电流下得到不同的力(或行程),来无级地改变气体的流量。
本实施例所附图式所绘示的结构、比例、大小等,均仅用以配合说明书所揭示的内容,以供熟悉此技术的人士了解与阅读,并非用以限定本发明可实施的限定条件,故不具技术上的实质意义,任何结构的修饰、比例关系的改变或大小的调整,在不影响本发明所能产生的功效及所能达成的目的下,均应仍落在本发明所揭示的技术内容得能涵盖的范围内。同时,本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”、“顺时针”、“逆时针”等的用语,亦仅为便于叙述的明了,而非用以限定本发明可实施的范围,其相对关系的改变或调整,在无实质变更技术内容下,当亦视为本发明可实施的范畴。
Claims (7)
1.一种气体流量控制比例阀,其特征在于:它包括阀芯(1)和阀体(2),阀芯(1)装在隔磁套筒(3)的安装槽(301),安装槽(301)内装有弹簧(4)抵住阀芯(1)的尾端,隔磁套筒(3)外套装有磁环(5),磁环(5)和隔磁套筒(3)插装在线圈组件(6)内,隔磁套筒(3)尾端伸出线圈组件(6)的一端用卡簧(7)固定,隔磁套筒(3)头部装在阀体(2)的套筒安装槽(200);
所述阀体(2)包括壳体(201),气阻气嘴(202)固定安装在壳体(201)内的气嘴安装槽(201a)内,壳体(201)内设有气孔(201b)使安装槽气嘴安装槽(201a)与外界连通,气孔(201b)上装有过滤装置(203);
所述阀芯(1)包括芯轴(101),芯轴(101)前端设有凹槽(101a),凹槽(101a)内装有橡胶垫安装座(102),橡胶垫安装座(102)内装有橡胶垫(103),橡胶垫安装座(102)后端抵住复位弹簧(104),所述芯轴(101)前端装有端盖(105),端盖(105)上与橡胶垫(103)对应处设有过孔(105a)。
2.如权利要求1所述的一种气体流量控制比例阀,其特征在于:所述线圈组件(6)和阀体(2)间装有垫片(8)。
3.如权利要求1所述的一种气体流量控制比例阀,其特征在于:所述过滤装置(203)包括滤网(203a),滤网(203a)通过螺母(203b)锁在气孔(201b)的过滤安装槽(201b01)内。
4.如权利要求1所述的一种气体流量控制比例阀,其特征在于:所述气阻气嘴(202)与壳体(201)间装有第一密封圈(204)。
5.如权利要求1所述的一种气体流量控制比例阀,其特征在于:所述隔磁套筒(3)头部装在阀体(2)的套筒安装槽(200),阀芯(1)装在隔磁套筒(3)的安装槽(301),橡胶垫(103)受复位弹簧(104)作用抵住气阻气嘴(202)。
6.如权利要求1所述的一种气体流量控制比例阀,其特征在于:所述弹簧(4)为宝塔弹簧。
7.如权利要求1所述的一种气体流量控制比例阀,其特征在于:所述隔磁套筒(3)与阀体(2)间装有第二密封圈(205)。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232196A (en) * | 1992-03-31 | 1993-08-03 | Ldi Pneutronics Corporation | Proportional solenoid controlled valve |
JP2001021059A (ja) * | 1999-07-09 | 2001-01-26 | Smc Corp | 比例制御弁 |
US6367766B1 (en) * | 1999-07-09 | 2002-04-09 | Robert Briant | Proportional flow valve |
CN103047426A (zh) * | 2013-01-11 | 2013-04-17 | 浙江大学台州研究院 | 气动比例压力阀 |
CN204187093U (zh) * | 2014-09-19 | 2015-03-04 | 比亚迪股份有限公司 | 电液比例阀 |
CN205315718U (zh) * | 2015-12-17 | 2016-06-15 | 上海仪电分析仪器有限公司 | 一种气体流量控制比例阀 |
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- 2015-12-17 CN CN201510955500.5A patent/CN105443773A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232196A (en) * | 1992-03-31 | 1993-08-03 | Ldi Pneutronics Corporation | Proportional solenoid controlled valve |
JP2001021059A (ja) * | 1999-07-09 | 2001-01-26 | Smc Corp | 比例制御弁 |
US6367766B1 (en) * | 1999-07-09 | 2002-04-09 | Robert Briant | Proportional flow valve |
CN103047426A (zh) * | 2013-01-11 | 2013-04-17 | 浙江大学台州研究院 | 气动比例压力阀 |
CN204187093U (zh) * | 2014-09-19 | 2015-03-04 | 比亚迪股份有限公司 | 电液比例阀 |
CN205315718U (zh) * | 2015-12-17 | 2016-06-15 | 上海仪电分析仪器有限公司 | 一种气体流量控制比例阀 |
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