CN108884971A - 液化气罐安全阀 - Google Patents

液化气罐安全阀 Download PDF

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CN108884971A
CN108884971A CN201680084160.6A CN201680084160A CN108884971A CN 108884971 A CN108884971 A CN 108884971A CN 201680084160 A CN201680084160 A CN 201680084160A CN 108884971 A CN108884971 A CN 108884971A
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gas
storage tank
blockading
safety valve
gas storage
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CN108884971B (zh
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金炳澈
元世卿
金旼澈
姜旻圭
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Okutz Trading Co.,Ltd.
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Oates Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/48—Lift valves, e.g. operated by push action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/70—Pressure relief devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0709—Camping gas

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Safety Valves (AREA)

Abstract

本发明公开一种液化气罐安全阀。所公开的液化气罐安全阀包括：阀部件，用于排出主体所填充的气体；以及气体封阻部件，设置在阀部件中并用于根据主体内的压力来封阻气体流动路径，其中，气体封阻部件包括：封阻操作部件，设置在阀部件中；封阻销构件，设置为在封阻操作部件中可滑动并用于选择性地封阻气体流动路径；以及防分离盖，连接封阻操作部件并用于防止封阻销构件的分离。

Description

液化气罐安全阀
技术领域
本发明涉及液化气罐(gas cylinder)安全阀，尤其涉及能够根据主体内的温度和压力封阻气体流动路径，从而熄灭燃气灶火焰的液化气罐安全阀。
背景技术
通常，便携式液化气罐的实例包括：填充了丁烷气体混合物(在液化石油气中以丁烷气体作为主要成分)并用于便携式燃气灶的便携式丁烷液化气罐、以及例如将液化石油气等用作推进剂的喷发剂喷雾器、杀虫剂喷雾器、以及油漆喷雾器这样的喷雾剂瓶。这种便携式液化气罐利用罐中的气体压力将其内的内含物挤出到外部，并且其中始终作用有一定水平或更高的压力。
当丁烷液化气罐在分配过程中或在使用过程中从周围环境接收高热时，丁烷液化气罐内的液化气体压力上升，丁烷液化气罐爆炸。特别地，对于便携式燃气灶中使用的丁烷液化气罐而言，如果在使用过程中不遵守安全规定不正常地使用丁烷液化气罐，或者高温或一定水平或更高的压力作用于丁烷液化气罐并因此增加其中的压力，那么液化气罐可能变形或损坏，或者在更坏的情况下可能爆炸。
相关的现有技术包括韩国未审查实用新型申请公开No.2005-0092527(2005年9月22日，发明名称：Portable Gas Cylinder)。
发明内容
技术问题
本发明旨在提供一种液化气罐安全阀，能够根据主体内的压力封阻气体流动路径，从而熄灭燃气灶的火焰并防止安全事故。
技术方案
根据本发明的液化气罐安全阀包括：阀部件，用于排出主体中填充的气体；以及气体封阻部件，设置在阀部件中并用于根据主体内的压力来封阻气体流动路径，其中，气体封阻部件包括：封阻操作部件，设置在阀部件中；封阻销构件，设置为在封阻操作部件中可滑动并用于选择性地封阻气体流动路径；以及防分离盖，连接封阻操作部件并用于防止封阻销构件的分离。
在封阻操作部件中可形成由其引入气体的气体引入路径以及由其引入空气的空气引入路径，并且封阻销构件可包括密封膜部件，密封膜部件用于将气体引入路径与空气引入路径分隔。
在密封膜部件的边缘可形成气密性改善件，气密性改善件向气体引入路径延伸并向外膨胀。
在封阻操作部件中可设置弹性构件，弹性构件用于朝向气体引入路径弹性地支撑封阻销构件。
在封阻销构件中可设置延伸盖部件，延伸盖部件用于防止气体从气体流动路径向封阻操作部件引入。
技术效果
当不遵守安全规定不正常地使用燃气灶而使得主体内的压力上升时，根据本发明的液化气罐安全阀可以根据压力来封阻气体流动路径，因此可以消除燃气灶的火源，从而防止液化气罐爆炸。
此外，根据本发明，由于利用通过空气引入路径的空气压力根据内部压力操作的配置，可以在不受燃气灶的调节器影响的情况下封阻流动路径，从而提高操作可靠性。
附图说明
图1是示出根据本发明的一个实施例的具有液化气罐安全阀的液化气罐的立体图。
图2是根据本发明的一个实施例的液化气罐安全阀的分解立体图。
图3是示出根据本发明的一个实施例的液化气罐安全阀的剖视图。
图4是表示根据本发明的一个实施例的液化气罐安全阀正常使用的状态的剖视图。
图5是示出根据本发明的一个实施例的液化气罐安全阀的流动路径的封阻的操作示意图。
图6是具有根据本发明的一个实施例的液化气罐安全阀的液化气罐的气体释放部件的操作示意图。
具体实施方式
下面参考附图描述根据本发明的液化气罐安全阀的实施例。
在该过程中，为了描述的清楚和方便，附图所示线的粗细或元件的尺寸可能放大。此外，下面所述的术语是考虑到本发明中的功能而限定的术语，因此可根据用户或操作者的意图或实践而变化。因此，应当基于贯穿本说明书内容来限定这些术语。
图1是示出根据本发明的一个实施例的具有液化气罐安全阀的液化气罐的立体图，图2是根据本发明的一个实施例的液化气罐安全阀的分解立体图，图3是示出根据本发明的一个实施例的液化气罐安全阀的剖视图，图4是表示根据本发明的一个实施例的液化气罐安全阀正常使用的状态的剖视图，图5是示出根据本发明的一个实施例的液化气罐安全阀的流动路径的封阻的操作示意图，图6是具有根据本发明的一个实施例的液化气罐安全阀的液化气罐的气体释放部件的操作示意图。
参照图1至图6，根据本发明的一个实施例的液化气罐安全阀100包括阀部件110和气体封阻部件120。
首先，液化气罐10包括主体12、圆顶14和上盖15，且由具有预定厚度或更大厚度的金属材料形成，从而具有耐久性。圆顶14连接主体12的上部，上盖15连接圆顶14的中心，液化气罐安全阀100设置在上盖15中。
阀部件110排出填充在主体12中的气体。阀部件110包括阀外壳112和阀杆114，阀外壳112设置在上盖15中并具有流动路径，流动路径用于允许主体12的内部与外部之间的连通，阀杆114设置在阀外壳112中并用于选择性地排出主体12内的气体。
阀外壳112连接上盖15，阀杆114设置在阀外壳112的中心。阀杆114由弹性构件116弹性地支撑在阀外壳112的内部空间中，阀杆114中形成有穿过外周的孔洞115。此外，用于封阻孔洞115的阀杆垫圈117设置在上盖15与阀外壳112之间并封阻孔洞115，使得主体中的气体12不排出到外部。当阀杆114由于外力被按压时，孔洞115打开且主体12中的气体被排出到外部。
气体封阻部件120设置在阀部件110中，并用于根据主体12内的压力封阻气体流动路径。气体封阻部件120可以封阻气体通过阀外壳112的阀杆114排出到外部。也就是说，气体封阻部件120用于通过封阻排出的气体来消除火源。气体封阻部件120包括设置在阀部件110中的封阻操作部件130、设置为可在封阻操作部件130中滑动并用于选择性地封阻气体流动路径的封阻销构件140、以及连接封阻操作部件130并用于防止封阻销构件140分离的防分离盖160。
封阻操作部件130与阀外壳112一体形成。也就是说，在阀外壳112的注塑时，封阻操作部件130一体注塑成型。此外，封阻操作部件130中形成有气体引入路径132和空气引入路径134，其中气体引入路径132引入气体，空气引入路径134引入空气。也就是说，如图2和图3所示，阀外壳112包括垂直部件(阀杆114设置在其中)、水平部件(从垂直部件向一侧折射之后延伸)、以及封阻空间部件(在垂直部件与水平部件的内侧之间形成)。
气体引入路径132与水平部件平行形成，空气引入路径134与垂直部件平行形成。空气引入路径134延伸到上盖15，空气从其中通过，空气垫圈135设置在空气引入路径134的上端。
封阻销构件140包括密封膜部件142，密封膜部件142设置为可在气体引入路径132中移动并用于将气体引入路径132与空气引入路径134分隔。当空气压力和气体压力得以维持时，封阻销构件140的位置相对于密封膜部件142得以维持；当由于燃气灶的不正常使用而在主体12中出现过压时，气体压力通过气体引入路径132传递，封阻销构件140移动。由于封阻销构件140的移动，封阻销构件140的前端可以封阻阀外壳112中的气体流动路径。
在密封膜部件142的边缘形成气密性改善件144，气密性改善件144朝向气体引入路径132延伸并向外膨胀。根据气密性改善件144的这种结构，因为在由于气体而产生压力时，气密性改善件144可以向外加宽，并且还可以粘附到气体引入路径132的内表面，所以可以改善气密性。
封阻操作部件130中形成有弹性支撑构件150，该弹性支撑构件150用于朝向气体引入路径132弹性地支撑封阻销构件140。弹性支撑构件150用于在平时保持大气压、并保持气体压力与主体12内的气体压力相同。弹性支撑构件150在出现过压时收缩，并在释放过压后，恢复封阻销构件140的位置以及用于打开阀外壳112中的气体流动路径。
封阻销构件140包括延伸盖部件145，延伸盖部件145用于防止气体沿气体流动路径向封阻操作部件130引入。如图3所示，延伸盖部件145在封阻销构件140的前端部件形成为管状，并形成为允许气体流动路径和封阻操作部件130的空间与连接路径的内表面进行接触。通过这种方式，可以防止被引导到气体流动路径的气体通过连接路径和空气引入路径134泄漏到外部。
下面描述根据本发明实施例的具有上述结构的液化气罐安全阀的作用和效果。
在燃气灶中安装液化气罐10之后操作燃气灶的操作件时，如图4所示，阀部件110的阀杆114被按压，并且主体12中填充的气体同时通过阀杆114排出到外部。更具体而言，由于阀杆114的移动，将阀杆垫圈117所封阻的孔洞115打开，主体12内的气体通过阀外壳112排出到外部并用作火源。
在使用这种便携式燃气灶时，当不遵守安全规定不正常地使用燃气灶而使得主体12的温度上升并且在其中出现过压时，主体12面临爆炸的危险。液化气罐安全阀100可以防止爆炸。
一开始，如图3所示，设置在封阻操作部件130中的封阻销构件140处于这样的状态，其中，相对于密封膜部件142，一侧由空气压力和弹性支撑构件150的弹力支撑，而另一侧由主体12内的气体压力支撑。在这种状态下，当主体12内的温度上升并且由于不正常使用而在主体12内出现过压时，如图5所示，气体压力变得高于空气压力和弹性支撑构件150的弹力，使得封阻销构件140移动，从而经由穿过连接路径的封阻销构件140的前端来封阻气体流动路径。因此，因为可以封阻气体通过阀杆114排出，所以燃气灶的火焰熄灭。
在这种情况下，可以在密封膜部件142的边缘设置向外膨胀的气密性改善件144，并在封阻销构件140移动时准确地接收气体压力，从而提高密封力并提高操作可靠性。
当如上所述熄灭燃气灶的火焰时，主体12的温度下降并释放过压。然后，由于弹性支撑构件150以及通过空气引入路径134引入的空气压力，封阻销构件140恢复到其初始位置。
在这种情况下，可将与连接路径的内表面进行接触的延伸盖部件145设置在封阻销构件140中，并防止气体通过空气引入路径134泄漏到外部。
同时，当由于烹饪器具的辐射热而另外出现二次温度上升和过压时，如图6所示，随着圆顶14的边缘由于过压而变形到凸起，由图案凹槽部件22形成的气体释放部件20破裂，过压气体被释放到外部。通过这种方式，可以防止主体12的爆炸。此外，因为燃气灶的火源已经被液化气罐安全阀100消除，所以可以保护用户免于火烧。
图案凹槽部件22包括由于过压而破裂的第一凹槽23、以及将第一凹槽23的破裂加倍的第二凹槽24，从而使得操作可靠。也就是说，因为更高的应力可以作用于第一凹槽23并由于第二凹槽24而扩展到更宽的范围，所以破裂加倍。
因此，当主体12内的温度上升并且由于液化气罐10的不正常使用而出现过压时，首先，液化气罐安全阀100可以消除燃气灶的火源，其次，当由于烹饪器具的辐射热而温度上升出现过压，圆顶14会膨胀并变形到凸起，第一凹槽23由于圆顶14的变形而破裂，因此可以防止液化气罐10爆炸的事故。
如上所述，根据本发明实施例的液化气罐安全阀，当燃气灶不遵守安全规定不正常地使用而使得主体内的压力上升时，液化气罐安全阀可以根据压力封阻气体流动路径，因此可以消除燃气灶的火源，从而防止液化气罐爆炸。此外，由于利用通过空气引入路径的空气压力根据内部压力操作的配置，可以在不受燃气灶的调节器影响的情况下封阻流动路径，从而提高操作可靠性。
以上参照附图所示的实施例描述了本发明，但是该描述仅仅是说明性的，并且本领域技术人员应当理解，根据以上描述，各种修改和其他等同实施例都是可能的。
因此，应当基于以下权利要求来限定本发明的实际技术范围。

Claims (5)

1.一种液化气罐安全阀，包括：
阀部件，用于排出主体中填充的气体；以及
气体封阻部件，设置在所述阀部件中并用于根据所述主体内的压力来封阻气体流动路径，
其中，所述气体封阻部件包括：
封阻操作部件，设置在所述阀部件中；
封阻销构件，设置为在所述封阻操作部件中可滑动并用于选择性地封阻所述气体流动路径；以及
防分离盖，连接所述封阻操作部件并用于防止所述封阻销构件的分离。
2.根据权利要求1所述的液化气罐安全阀，其中：
在所述封阻操作部件中形成气体引入路径和空气引入路径，通过所述气体引入路径引入气体，通过空气引入路径引入空气；以及
所述封阻销构件包括密封膜部件，所述密封膜部件用于将所述气体引入路径与所述空气引入路径分隔。
3.根据权利要求2所述的液化气罐安全阀，其中，在所述密封膜部件的边缘形成气密性改善件，所述气密性改善件向所述气体引入路径延伸并向外膨胀。
4.根据权利要求2所述的液化气罐安全阀，其中，在所述封阻操作部件中设置弹性构件，所述弹性构件用于朝向所述气体引入路径弹性地支撑所述封阻销构件。
5.根据权利要求2所述的液化气罐安全阀，其中，在所述封阻销构件中设置延伸盖部件，所述延伸盖部件用于防止气体从所述气体流动路径向所述封阻操作部件引入。
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