WO2014032526A1 - Fusible alloy-type safety valve with low leakage and high sealing property - Google Patents

Fusible alloy-type safety valve with low leakage and high sealing property Download PDF

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Publication number
WO2014032526A1
WO2014032526A1 PCT/CN2013/081500 CN2013081500W WO2014032526A1 WO 2014032526 A1 WO2014032526 A1 WO 2014032526A1 CN 2013081500 W CN2013081500 W CN 2013081500W WO 2014032526 A1 WO2014032526 A1 WO 2014032526A1
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WIPO (PCT)
Prior art keywords
fusible alloy
valve
low leakage
high sealing
safety valve
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PCT/CN2013/081500
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French (fr)
Chinese (zh)
Inventor
杜增虎
张小杰
张强利
王雯雯
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西安新思化工设备制造有限公司
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Publication of WO2014032526A1 publication Critical patent/WO2014032526A1/en

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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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
    • F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems

Definitions

  • the present invention relates to the field of fire protection, and in particular to a fusible alloy low-bleed high-sealing safety valve for use in a gas fire-extinguishing system.
  • a fusible alloy low-bleed high-sealing safety valve for use in a gas fire-extinguishing system.
  • the gas fire extinguishing system uses a low venting high sealing valve (to prevent a slight leak of gas in the gas extinguishing system from accumulating in the pipeline and causing a false start) and a safety valve (to prevent the gas fire extinguishing system from being sprayed due to work) The pressure is too high and an accident occurs).
  • the low-leakage high-sealing valve and the safety valve are two separate components, which not only increases the number of components, but also reduces the efficiency of the pipe network assembly, and becomes one of the bottlenecks for reducing manufacturing costs and reducing the processing cycle.
  • the utility model combines the functions of the low leakage high sealing valve and the safety valve on one carrier, and provides a fusible alloy with novel design, simple structure and reliable performance. Low relief high seal safety valve.
  • the invention relates to a fusible alloy type low leakage high sealing safety valve, comprising a joint 1, an elastic member 3, a valve core 5 and a valve body 6, wherein the upper end of the valve body 6 is provided with an internal thread, and the joint 1 is screwed with the internal thread.
  • the valve core 5 is provided with a through hole 9 at the center thereof, and the top end of the through hole 9 is welded with a fusible alloy piece 8 to function as a through hole.
  • the top end of the through hole 9 is provided with a step including a first step for engaging the elastic member 3 and a second step for engaging the fusible alloy sheet 8.
  • a gasket 7 for preventing leakage of the fusible alloy sheet after heating and melting is further provided between the fusible alloy sheet 8 and the second step of the through hole 9.
  • the spacer 7 is preferably tin foil.
  • the elastic member 3 is a spring and is disposed between the joint 1 and the valve body 5. Further, a first gasket 2 is disposed at a joint between the joint 1 and the valve body 6; a second gasket 4 is disposed between the joint 1 and the valve core 5.
  • the utility model is improved on the basis of the ordinary low leakage high sealing valve, and the center of the valve core is stepped; and then the spot welding fusible alloy is added in the middle of the step hole to play the role of blocking the through hole.
  • the working principle of the device of the utility model is the same as that of the ordinary low-leakage high-sealing valve: when in the low-pressure relief state, the spool is equivalent to a piston nozzle, and the valve body outlet end joint is not sealed.
  • the inlet pressure of the valve body reaches a certain level, the thrust is generated to the spool, the spool is moved to the outlet end, and the gas end joint is squeezed to achieve the sealing function.
  • the utility model has the advantages of novel design, simple structure and reliable performance, and integrates the functions of the low leakage high sealing valve and the safety relief valve, thereby optimizing the structure of the gas fire extinguishing system device and reducing the structure.
  • the number of parts has increased the efficiency of pipe network assembly and reduced costs.
  • the fusible alloy type low leakage high sealing safety valve of the utility model utilizes the welding characteristics of the fusible alloy as a breakthrough point of the safety venting, further reduces the equipment cost and simplifies the processing technology.
  • FIG. 1 is a schematic view of the structure of the present invention.
  • Figure 2 is an enlarged view of a portion I of Figure 1.
  • a fusible alloy type low leakage high sealing safety valve as shown in FIG. 1 includes a joint 1, an elastic member 3, a valve core 5 and a valve body 6, and the upper end of the valve body 6 is provided with an internal thread, a joint 1 and a joint The internal thread is screwed, and the valve core 5 is provided with a through hole 9 at the center thereof.
  • the top end of the through hole 9 is welded with a fusible alloy piece 8 to function as a through hole.
  • the top end of the through hole 9 is provided with a step including a first step for engaging the elastic member 3 and a second step for engaging the fusible alloy sheet 8.
  • the fusible alloy sheet 8 and the second step of the through hole 9 are further provided with a fusible alloy for preventing The sheet is heated and melted to leak the gasket 7.
  • the spacer 7 is preferably tin foil.
  • the elastic member 3 is a spring and is disposed between the joint 1 and the spool 5.
  • a first gasket 2 is disposed at a joint between the joint 1 and the valve body 6; a second gasket 4 is disposed between the joint 1 and the valve core 5.
  • the device of the present invention has the following three working states:

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Safety Valves (AREA)

Abstract

Disclosed is a fusible alloy-type safety valve with a low leakage and high sealing property, the safety valve comprising a connector (1), an elastic component (3), a valve core (5) and a valve body (6), wherein the upper end of the valve body (6) is provided with an internal thread, the connector (1) is in a threaded connection with the internal thread, a central through hole (9) is arranged at the centre of the valve core (5), and a fusible alloy sheet (8) is welded to the top end of the through hole (9). The fusible alloy-type safety valve with a low leakage and high sealing property integrates functions of a valve with a low leakage and high sealing of a gas and of a valve for safely discharging the gas, utilizes welding characteristics of the fusible alloy as breakthroughs in the safety discharge, and thereby has a simple structure and reliable performance, optimizing the equipment structure for a gas fire-extinguishing system, reducing the number of spare parts, simplifying the processing technique of the valve, improving the assembly efficiency of pipe networks, and effectively reducing the equipment costs.

Description

说 明 书 一种易熔合金式低泄高封安全阀  Description A fusible alloy low-bleed high-sealing safety valve
技术领域 本实用新型涉及消防领域， 具体涉及一种应用于气体灭火系统中的易 熔合金式低泄高封安全阀。 背景技术 为保证装置的安全性， 气体灭火系统均使用低泄高封阀 （防止气体灭 火系统微量漏气在管路中聚集而发生误启动） 与安全阀 （防止气体灭火系 统喷放时因工作压力太高而产生意外）。 目前低泄高封阀与安全阀是两个 独立部件， 这样不仅增加了部件数量， 还降低了管网装配效率， 成为降低 制造成本和减少加工周期的瓶颈之一。 实用新型内容 为了解决现有技术中存在的问题， 本实用新型将低泄高封阀与安全阀 二者功能融合在一个载体上， 提供了一种设计新颖、 结构简单、 性能可靠 的易熔合金式低泄高封安全阀。 TECHNICAL FIELD The present invention relates to the field of fire protection, and in particular to a fusible alloy low-bleed high-sealing safety valve for use in a gas fire-extinguishing system. BACKGROUND OF THE INVENTION In order to ensure the safety of the device, the gas fire extinguishing system uses a low venting high sealing valve (to prevent a slight leak of gas in the gas extinguishing system from accumulating in the pipeline and causing a false start) and a safety valve (to prevent the gas fire extinguishing system from being sprayed due to work) The pressure is too high and an accident occurs). At present, the low-leakage high-sealing valve and the safety valve are two separate components, which not only increases the number of components, but also reduces the efficiency of the pipe network assembly, and becomes one of the bottlenecks for reducing manufacturing costs and reducing the processing cycle. SUMMARY OF THE INVENTION In order to solve the problems existing in the prior art, the utility model combines the functions of the low leakage high sealing valve and the safety valve on one carrier, and provides a fusible alloy with novel design, simple structure and reliable performance. Low relief high seal safety valve.
本实用新型解决技术问题的技术方案是：  The technical solution of the utility model to solve the technical problem is:
一种易熔合金式低泄高封安全阀， 包括接头 1、 弹性部件 3、 阀芯 5 和阀体 6， 所述阀体 6上端设有内螺紋， 接头 1与所述内螺紋螺接， 其特 征在于： 所述阀芯 5中心开有通孔 9， 所述通孔 9的顶端焊接有易熔合金 片 8， 起到隔断通孔的作用。  The invention relates to a fusible alloy type low leakage high sealing safety valve, comprising a joint 1, an elastic member 3, a valve core 5 and a valve body 6, wherein the upper end of the valve body 6 is provided with an internal thread, and the joint 1 is screwed with the internal thread. The valve core 5 is provided with a through hole 9 at the center thereof, and the top end of the through hole 9 is welded with a fusible alloy piece 8 to function as a through hole.
进一步地， 所述通孔 9的顶端设有台阶， 包括用于卡合弹性部件 3的 第一台阶和用于卡合易熔合金片 8的第二台阶。  Further, the top end of the through hole 9 is provided with a step including a first step for engaging the elastic member 3 and a second step for engaging the fusible alloy sheet 8.
进一步地， 所述易熔合金片 8和通孔 9的第二台阶之间还设有用于防 止易熔合金片加热融化后渗漏的垫片 7。  Further, a gasket 7 for preventing leakage of the fusible alloy sheet after heating and melting is further provided between the fusible alloy sheet 8 and the second step of the through hole 9.
进一步地， 所述垫片 7优选为锡纸。  Further, the spacer 7 is preferably tin foil.
进一步地， 所述弹性部件 3为弹簧， 设置于接头 1和阀芯 5之间。 进一步地， 所述接头 1与阀体 6之间接缝处设有第一垫圈 2; 所述接 头 1与阀芯 5之间设有第二垫圈 4。 本实用新型在普通低泄高封阀的基础上进行改进， 将阀芯中心打台阶 孔； 然后在台阶孔中间增加点焊易熔合金， 起到隔断通孔的作用。 Further, the elastic member 3 is a spring and is disposed between the joint 1 and the valve body 5. Further, a first gasket 2 is disposed at a joint between the joint 1 and the valve body 6; a second gasket 4 is disposed between the joint 1 and the valve core 5. The utility model is improved on the basis of the ordinary low leakage high sealing valve, and the center of the valve core is stepped; and then the spot welding fusible alloy is added in the middle of the step hole to play the role of blocking the through hole.
当压力在安全工作范围内时， 本实用新型装置的工作原理和普通低泄 高封阀一样： 当处于低压泄放状态时， 阀芯相当于一个活塞接管， 和阀体 出气端接头并不密封； 当阀体进气压力达到一定程度， 对阀芯产生推力， 使阀芯向出气端运动， 并挤压出气端接头， 达到密封的作用。 而当压力超 出安全工作范围， 产生不安全因素时， 阀芯通孔末端的易熔合金片脱落， 使阀芯中间的通孔贯通， 直接连通阀体进气端和出气端， 起到安全泄放压 力的作用。  When the pressure is within the safe working range, the working principle of the device of the utility model is the same as that of the ordinary low-leakage high-sealing valve: when in the low-pressure relief state, the spool is equivalent to a piston nozzle, and the valve body outlet end joint is not sealed. When the inlet pressure of the valve body reaches a certain level, the thrust is generated to the spool, the spool is moved to the outlet end, and the gas end joint is squeezed to achieve the sealing function. When the pressure exceeds the safe working range and unsafe factors are generated, the fusible alloy piece at the end of the valve core through hole is detached, the through hole in the middle of the valve core is penetrated, and the air inlet end and the air outlet end of the valve body are directly communicated to safely vent. The role of pressure.
本实用新型易熔合金式低泄高封安全阀设计新颖， 结构简单， 性能可 靠， 其集低泄高封阀及安全泄放阀二者功能于一体， 优化了气体灭火系统 设备的结构， 减少了零部件数量， 使管网装配效率提高， 成本降低。  The utility model has the advantages of novel design, simple structure and reliable performance, and integrates the functions of the low leakage high sealing valve and the safety relief valve, thereby optimizing the structure of the gas fire extinguishing system device and reducing the structure. The number of parts has increased the efficiency of pipe network assembly and reduced costs.
本实用新型易熔合金式低泄高封安全阀开创性地利用易熔合金的焊 接特性作为安全泄放的突破口， 进一步降低设备成本， 使加工工艺明显简 化。  The fusible alloy type low leakage high sealing safety valve of the utility model utilizes the welding characteristics of the fusible alloy as a breakthrough point of the safety venting, further reduces the equipment cost and simplifies the processing technology.
下面结合说明书附图对本实用新型做进一步的描述。 附图说明： 图 1为本实用新型的结构示意图。  The present invention will be further described below in conjunction with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of the structure of the present invention.
图 2为图 1中 I部分放大图。  Figure 2 is an enlarged view of a portion I of Figure 1.
图中： 1-接头， 2-第一垫圈， 3-弹性部件， 4-第二垫圈， 5-阀芯， 6-阀 体， 7-垫片， 8-易熔合金片， 9-通孔 具体实施方式： 现结合附图对本实用新型的易熔合金式低泄高封安全阀进行进一步 的说明。  In the figure: 1-joint, 2-first washer, 3-elastic part, 4-second washer, 5-valve, 6-valve body, 7-shield, 8-fusible alloy sheet, 9-through hole DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: The fusible alloy type low leakage high sealing safety valve of the present invention will be further described with reference to the accompanying drawings.
如图 1所示的一种易熔合金式低泄高封安全阀， 包括接头 1、 弹性部 件 3、 阀芯 5和阀体 6， 所述阀体 6上端设有内螺紋， 接头 1与所述内螺 紋螺接， 其特征在于： 所述阀芯 5中心开有通孔 9， 所述通孔 9的顶端焊 接有易熔合金片 8， 起到隔断通孔的作用。 所述通孔 9的顶端设有台阶， 包括用于卡合弹性部件 3 的第一台阶和用于卡合易熔合金片 8 的第二台 阶。 所述易熔合金片 8和通孔 9的第二台阶之间还设有用于防止易熔合金 片加热融化后渗漏的垫片 7。 所述垫片 7优选为锡纸。 所述弹性部件 3为 弹簧， 设置于接头 1和阀芯 5之间。 所述接头 1与阀体 6之间接缝处设有 第一垫圈 2; 所述接头 1与阀芯 5之间设有第二垫圈 4。 A fusible alloy type low leakage high sealing safety valve as shown in FIG. 1 includes a joint 1, an elastic member 3, a valve core 5 and a valve body 6, and the upper end of the valve body 6 is provided with an internal thread, a joint 1 and a joint The internal thread is screwed, and the valve core 5 is provided with a through hole 9 at the center thereof. The top end of the through hole 9 is welded with a fusible alloy piece 8 to function as a through hole. The top end of the through hole 9 is provided with a step including a first step for engaging the elastic member 3 and a second step for engaging the fusible alloy sheet 8. The fusible alloy sheet 8 and the second step of the through hole 9 are further provided with a fusible alloy for preventing The sheet is heated and melted to leak the gasket 7. The spacer 7 is preferably tin foil. The elastic member 3 is a spring and is disposed between the joint 1 and the spool 5. A first gasket 2 is disposed at a joint between the joint 1 and the valve body 6; a second gasket 4 is disposed between the joint 1 and the valve core 5.
工作原理： 当系统压力在安全工作范围内时， 其工作原理与普通低泄 高封阀相同， 为防止气体灭火系统微量漏气在管路中聚集而发生误启动。 而当压力超出安全工作范围， 产生不安全因素时， 阀芯通孔末端处焊接的 易熔合金片会被压力冲开， 让阀芯中间的通孔贯通， 直接联通阀体进气端 和出气端， 起到安全泄放压力的作用。  Working principle: When the system pressure is within the safe working range, its working principle is the same as that of the ordinary low-leakage high-sealing valve. In order to prevent the micro-leakage of the gas fire-extinguishing system from accumulating in the pipeline, a false start occurs. When the pressure exceeds the safe working range and unsafe factors are generated, the fusible alloy piece welded at the end of the valve core through hole will be opened by the pressure, the through hole in the middle of the valve core is penetrated, and the inlet end and the outlet of the valve body are directly connected. At the end, it acts as a safe relief pressure.
因此， 本实用新型装置有以下 3种工作状态：  Therefore, the device of the present invention has the following three working states:
1 ) 当处于系统微量漏气， 低压泄放状态时： 由于弹性部件 3的存在， 使阀芯 5和阀体 6， 阀芯 5和接头 1之间存在孔隙， 系统的微量漏气可通 过阀芯与阀体之间的孔隙从出气口排出。  1) When there is a slight leak in the system and a low pressure relief state: Due to the presence of the elastic member 3, there is a gap between the spool 5 and the valve body 6, the spool 5 and the joint 1, and a slight leak of the system can pass through the valve. The pores between the core and the valve body are discharged from the gas outlet.
2) 当灭火系统正常启动， 阀体进气压力达到一定程度： 由于易熔合 金片 8的阻隔， 使气流对阀芯产生推力， 产生的推力超过弹性部件 3的弹 力临界值， 使阀芯 5向出气端运动， 带动第二垫圈 4挤压出气端接头 1， 达到密封的作用。  2) When the fire extinguishing system starts normally, the inlet pressure of the valve body reaches a certain level: Due to the barrier of the fusible alloy piece 8, the airflow generates thrust to the valve core, and the generated thrust exceeds the elastic force threshold value of the elastic member 3, so that the valve core 5 Moving to the outlet end, the second gasket 4 is driven to extrude the gas end joint 1 to achieve the sealing function.
3 ) 而当压力超出安全工作范围， 产生不安全因素时， 阀芯中间的易 熔合金片 8会被压力挤爆， 使阀芯中心的通孔 9贯通， 直接联通阀体进气 端和出气端， 起到安全泄放压力的作用。  3) When the pressure exceeds the safe working range and unsafe factors occur, the fusible alloy piece 8 in the middle of the valve core will be squeezed by the pressure, so that the through hole 9 in the center of the valve core penetrates, directly connecting the intake end of the valve body and the outgas At the end, it acts as a safe relief pressure.
虽然本实用新型已参照如上所述的具体实施例来描述， 但本技术领域 的普通技术人员应当认识到， 以上实施例仅是用以说明本实用新型而不是 限制本实用新型， 只要在本实用新型的实质精神范围内对上述实施例的变 化、 变型都应落入本申请的权利要求书请求保护的范围。  Although the present invention has been described with reference to the specific embodiments described above, those skilled in the art should understand that the above embodiments are only for illustrating the present invention and not limiting the present invention. Variations and modifications of the above-described embodiments within the scope of the novel spirits are intended to fall within the scope of the claims as claimed.

Claims

权 利 要 求 书 claims
1、 一种易熔合金式低泄高封安全阀， 包括接头 （1)、 弹性部件 （3)、 阀芯 （5) 和阀体 （6)， 所述阀体 （6) 上端设有内螺紋， 接头 （1) 与所 述内螺紋螺接， 其特征在于： 所述阀芯 （5) 中心开有通孔 （9)， 所述通 孔 （9) 的顶端焊接有易熔合金片 （8)。 1. A fusible alloy type low leakage and high seal safety valve, including a joint (1), an elastic component (3), a valve core (5) and a valve body (6). The upper end of the valve body (6) is provided with an inner Thread, the joint (1) is threaded with the internal thread, and is characterized by: a through hole (9) is opened in the center of the valve core (5), and a fusible alloy sheet (9) is welded to the top of the through hole (9). 8).
2、 根据权利要求 1 所述的一种易熔合金式低泄高封安全阀， 其特征 在于： 所述通孔 （9) 的顶端设有台阶， 包括用于卡合弹性部件 （3) 的第 一台阶和用于卡合易熔合金片 （8) 的第二台阶。 2. A fusible alloy type low leakage and high sealing safety valve according to claim 1, characterized in that: the top of the through hole (9) is provided with a step, including a step for engaging the elastic component (3) The first step and the second step for engaging the fusible alloy piece (8).
3、 根据权利要求 2所述的一种易熔合金式低泄高封安全阀， 其特征 在于： 所述易熔合金片 （8) 和通孔 （9) 的第二台阶之间还设有用于防止 易熔合金片加热融化后渗漏的垫片 （7)。 3. A fusible alloy type low leakage and high sealing safety valve according to claim 2, characterized in that: there is also a second step between the fusible alloy sheet (8) and the through hole (9). A gasket (7) used to prevent leakage after the fusible alloy sheet is heated and melted.
4、 根据权利要求 3 所述的一种易熔合金式低泄高封安全阀， 其特征 在于： 所述垫片 （7) 为锡纸。 4. A fusible alloy type low leakage and high sealing safety valve according to claim 3, characterized in that: the gasket (7) is tin foil.
5、 根据权利要求 1~4 中任一项所述的一种易熔合金式低泄高封安全 阀， 其特征在于： 所述弹性部件（3)为弹簧， 设置于接头（1)和阀芯（5) 之间。 5. A fusible alloy type low leakage and high sealing safety valve according to any one of claims 1 to 4, characterized in that: the elastic component (3) is a spring and is provided on the joint (1) and the valve between cores (5).
6、 根据权利要求 5所述的一种易熔合金式低泄高封安全阀， 其特征 在于： 所述接头 （1) 与阀体 （6) 之间设有第一垫圈 （2); 所述接头 （1) 与阀芯 （5) 之间设有第二垫圈 （4)。 6. A fusible alloy type low leakage and high sealing safety valve according to claim 5, characterized in that: a first gasket (2) is provided between the joint (1) and the valve body (6); A second gasket (4) is provided between the joint (1) and the valve core (5).
PCT/CN2013/081500 2012-08-29 2013-08-14 Fusible alloy-type safety valve with low leakage and high sealing property WO2014032526A1 (en)

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Publication number Priority date Publication date Assignee Title
CN202756713U (en) * 2012-08-29 2013-02-27 西安新思化工设备制造有限公司 Fusible alloy-type low releasing and high sealing safe valve
CN107289163A (en) * 2017-06-30 2017-10-24 上海百图低温阀门有限公司 Automobile-used high pressure compressed hydrogen cylinder safety device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050067025A1 (en) * 2003-09-30 2005-03-31 C.R.F. Societa Consortile Per Azioni Safety valve for pressurized tanks, and a tank provided with said valve
CN201090811Y (en) * 2007-09-26 2008-07-23 孙长杰 Safety valve
WO2009010177A1 (en) * 2007-07-18 2009-01-22 Tomasetto Achille S.P.A. Safety valve for releasing gas in overpressure, particularly for lpg vehicles propulsion apparatus
CN201284858Y (en) * 2008-10-07 2009-08-05 国营第三九四厂 Low-pressure bleeder valve used for gas starting pipeline of automatic fire-extinguishing system
CN102606779A (en) * 2011-01-24 2012-07-25 上海靓消消防装备有限公司 Piston type container valve with high flow
CN202756713U (en) * 2012-08-29 2013-02-27 西安新思化工设备制造有限公司 Fusible alloy-type low releasing and high sealing safe valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050067025A1 (en) * 2003-09-30 2005-03-31 C.R.F. Societa Consortile Per Azioni Safety valve for pressurized tanks, and a tank provided with said valve
WO2009010177A1 (en) * 2007-07-18 2009-01-22 Tomasetto Achille S.P.A. Safety valve for releasing gas in overpressure, particularly for lpg vehicles propulsion apparatus
CN201090811Y (en) * 2007-09-26 2008-07-23 孙长杰 Safety valve
CN201284858Y (en) * 2008-10-07 2009-08-05 国营第三九四厂 Low-pressure bleeder valve used for gas starting pipeline of automatic fire-extinguishing system
CN102606779A (en) * 2011-01-24 2012-07-25 上海靓消消防装备有限公司 Piston type container valve with high flow
CN202756713U (en) * 2012-08-29 2013-02-27 西安新思化工设备制造有限公司 Fusible alloy-type low releasing and high sealing safe valve

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