CN112066035A - 一种真空泵保护阀 - Google Patents

一种真空泵保护阀 Download PDF

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CN112066035A
CN112066035A CN202010864734.XA CN202010864734A CN112066035A CN 112066035 A CN112066035 A CN 112066035A CN 202010864734 A CN202010864734 A CN 202010864734A CN 112066035 A CN112066035 A CN 112066035A
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valve
valve core
vacuum pump
valve body
pump protection
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赵永文
张家林
张若虎
黄丽丽
徐雪松
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Jinan Huaxin Automation Engineering Co ltd
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Jinan Huaxin Automation Engineering Co ltd
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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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
    • 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
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements
    • 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
    • F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/243—Packings
    • 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
    • F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/26—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
    • F16K3/262—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in 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
    • 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
    • F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/26—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
    • F16K3/265—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a sleeve sliding in the direction of the flow line

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)

Abstract

本发明涉及一种真空泵保护阀，包括柱状中空结构的阀体和阀盖，所述阀体和阀盖采用套接连接，所述阀体远离阀盖的底面中心开设有进气接口，所述阀体的侧面开设有抽真空接口，所述阀盖远离阀体的一端设有放散接口，所述阀体的内部进气接口往里套设有阀芯，所述阀芯呈圆柱状且靠近阀盖的一端设有圆柱状堵块，所述阀盖的内部阀芯往里设有阀芯挡板，所述阀芯挡板呈圆柱状设计，所述阀芯挡板靠近阀芯的一端圆形底面上设有圆柱状挡块，所述阀芯挡板与放散接口相连。所述真空泵保护阀体积小，耐压高，结构简单，动作可靠，寿命长，适用范围广。

Description

一种真空泵保护阀
技术领域
本发明涉及气体管道领域，特别适用于高压气体钢瓶充装领域，具体涉及一种真空泵保护阀。
背景技术
随着科学技术的发展，对工厂自动化程度和安全性的要求越来越高，特别是高压气体钢瓶充装领域。随着充装技术的迅速发展，充装控制系统跟钢瓶抽真空系统开始出现了一体化的集成设计。
现在市场上的高压真空泵挡板阀，存在以下问题：耐压强度低，不能满足钢瓶充装的应用；结构复杂，多为气动或者电动阀，采购成本高；材质不能全部满足钢瓶充装的要求，比如GB/T50030-2013《氧气站设计规范》要求，氧气充装管道材质为铜及铜合金或者镍及镍基合金，而市场上真空泵挡板阀材质多为碳钢或者不锈钢。
基于以上问题，市场上没有可以满足这个系统应用的国产品牌的真空泵挡板阀，急需一款新产品填补高压真空泵保护阀国内空白。
发明内容
本发明针对现有技术的不足，提供一种真空泵保护阀，以加快实现高压气体钢瓶充装领域的自动化与智能化。
本发明是通过如下技术方案实现的：
提供一种真空泵保护阀，包括阀体和阀盖，所述阀体和阀盖为柱状结构，且为中空设计，所述阀体阀盖采用套接连接，所述阀体远离阀盖的底面中心开设有进气接口，所述阀体的侧面开设有抽真空接口，所述阀盖远离阀体的一端设有放散接口，所述抽真空接口、进气接口、放散接口的四周设有若干通孔，所述阀体的内部进气接口往里套设有阀芯，所述阀芯呈圆柱状且靠近阀盖的一端设有圆柱状堵块，所述阀盖的内部阀芯往里设有阀芯挡板，所述阀芯挡板呈圆柱状设计，所述阀芯挡板靠近阀芯的一端圆形底面上设有圆柱状挡块，所述阀芯挡板与放散接口相连。
优选的，所述圆柱状堵块外套设有阀芯密封件，所述阀芯密封件位于阀体和阀盖相接触的位置。
优选的，所述阀芯套设有两个第二密封圈，所述抽真空接口位于两个密封圈之间。
优选的，所述阀芯呈中空设计，所述阀芯上设有若干通孔。
优选的，所述阀芯挡板上设有若干通孔。
优选的，所述圆柱状堵块的横截面积大于圆柱状挡块横截面积。
优选的，所述阀芯挡板外套设有第一密封圈。
优选的，所述阀体采用黄铜材质，铜含量低于70%，所述阀芯采用不锈钢材质或者镍合金材质。
本发明的有益效果：所述真空泵保护阀体积小，耐压高，结构简单，动作可靠，寿命长，适用范围广；所述阀体部分采用黄铜材质（铜含量低于70%），阀芯采用不锈钢材质或者镍合金材质，满足国标的需求，可以适用包括氧气在内的非腐蚀性气体。
附图说明
图1为本发明真空泵保护阀的外部结构示意图；
图2为本发明真空泵保护阀的内部剖视图；
图3为本发明阀体的结构示意图；
图4为本发明阀盖的结构示意图；
图5为本发明阀芯、阀芯密封件和阀芯挡板的连接示意图；
图6为本发明阀芯的结构示意图；
图7为本发明阀芯挡板的结构示意图；
图中所示：
1、阀体，2、阀盖，3、进气接口，4、抽真空接口，5、放散接口，6、阀芯，7、堵块，8、阀芯密封件，9、阀芯挡板，10、挡块，11、第一密封圈，12、第二密封圈。
具体实施方式
为能清楚说明本方案的技术特点，下面通过具体实施方式，对本方案进行阐述。
参见图1，一种真空泵保护阀，包括阀体1和阀盖2，所述阀体1和阀盖2采用金属铜材质。所述阀体1和阀盖2为柱状结构，且为中空设计，所述阀体1阀盖2采用套接连接，所述阀体1远离阀盖2的底面中心开设有进气接口3，所述阀体1的侧面开设有抽真空接口4，所述阀盖2远离阀体1的一端设有放散接口5，所述抽真空接口4、进气接口3、放散接口5的四周设有若干通孔，以方便气体的排除。
参见图2-6，,所述阀体1的内部进气接口3往里套设有阀芯6，所述阀芯6呈圆柱状中空设计，外壁设有若干通孔，所述阀芯6套设有两个第二密封圈12，所述抽真空接口4位于两个密封圈之间，所述阀芯6靠近阀盖2的一端设有圆柱状堵块7，所述圆柱状堵块7外套设有阀芯密封件8，所述阀芯密封件8位于阀体1和阀盖2相接触的位置。
参见图7，所述阀盖2的内部阀芯6往里设有阀芯挡板9，所述阀芯挡板9呈圆柱状设计，设有若干通孔，所述阀芯挡板9靠近阀芯6的一端圆形底面上设有圆柱状挡块10，所述阀芯挡板9外套设有第一密封圈11。所述阀芯挡板9与放散接口5相连。所述圆柱状堵块7和圆柱状挡块10横截面相同。
本发明工作原理：所述真空泵保护阀的进气接口3与需要抽真空的管道或者容器连接，所述抽真空接口4与真空泵进气口相连，所述放散接口5与放散管道相连。在抽真空时，如果进气接口3所接的需要抽真空的管道或者其他容器气体压力过大时，阀芯6在气压的推动下，向阀盖2端移动，使得进气接口3与放散接口5连通，气体在放散接口5排出，随着气体的排放压力下降，下降到一定程度在重力的所用下，阀芯6自动下落，进气接口3与抽真空接口4连通，开始对需要抽真空的管道或者其他容器进行抽真空，从而避免气体压力过高对真空泵带来的破坏，起到了对真空泵的保护作用。
当然，上述说明也并不仅限于上述举例，本发明未经描述的技术特征可以通过或采用现有技术实现，在此不再赘述；以上实施例及附图仅用于说明本发明的技术方案并非是对本发明的限制，参照优选的实施方式对本发明进行了详细说明，本领域的普通技术人员应当理解，本技术领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换都不脱离本发明的宗旨，也应属于本发明的权利要求保护范围。

Claims (8)

1.一种真空泵保护阀，包括阀体（1）和阀盖（2），其特征在于：所述阀体（1）和阀盖（2）为柱状结构，且为中空设计，所述阀体（1）和阀盖（2）采用套接连接，所述阀体（1）远离阀盖（2）的底面中心开设有进气接口（3），所述阀体（1）的侧面开设有抽真空接口（4），所述阀盖（2）远离阀体（1）的一端设有放散接口（5），所述抽真空接口（4）、进气接口（3）、放散接口（5）的四周设有若干通孔，所述阀体（1）的内部进气接口（3）往里套设有阀芯（6），所述阀芯（6）呈圆柱状且靠近阀盖（2）的一端设有圆柱状堵块（7），所述阀盖（2）的内部阀芯（6）往里设有阀芯挡板（9），所述阀芯挡板（9）呈圆柱状设计，所述阀芯挡板（9）靠近阀芯（6）的一端圆形底面上设有圆柱状挡块（10），所述阀芯挡板（9）与放散接口（5）相连。
2.根据权利要求1所述的真空泵保护阀，其特征在于：所述圆柱状堵块（7）外套设有阀芯密封件（8），所述阀芯密封件（8）位于阀体（1）和阀盖（2）相接触的位置。
3.根据权利要求1所述的真空泵保护阀，其特征在于：所述阀芯（6）套设有两个第二密封圈（12），所述抽真空接口（4）位于两个密封圈之间。
4.根据权利要求1所述的真空泵保护阀，其特征在于：所述阀芯（6）呈中空设计，所述阀芯（6）上设有若干通孔。
5.根据权利要求1所述的真空泵保护阀，其特征在于：所述阀芯挡板（9）上设有若干通孔。
6.根据权利要求1所述的真空泵保护阀，其特征在于：所述圆柱状堵块（7）的横截面积大于圆柱状挡块（10）横截面积。
7.根据权利要求1所述的真空泵保护阀，其特征在于：所述阀芯挡板（9）外套设有第一密封圈（11）。
8.根据权利要求1所述的真空泵保护阀，其特征在于：所述阀体（1）采用黄铜材质，铜含量低于70%，所述阀芯（6）采用不锈钢材质或者镍合金材质。
CN202010864734.XA 2020-08-25 2020-08-25 一种真空泵保护阀 Pending CN112066035A (zh)

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