WO2021057716A1 - 热激活排压阀 - Google Patents

热激活排压阀 Download PDF

Info

Publication number
WO2021057716A1
WO2021057716A1 PCT/CN2020/116804 CN2020116804W WO2021057716A1 WO 2021057716 A1 WO2021057716 A1 WO 2021057716A1 CN 2020116804 W CN2020116804 W CN 2020116804W WO 2021057716 A1 WO2021057716 A1 WO 2021057716A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve core
communication port
side communication
sensing unit
Prior art date
Application number
PCT/CN2020/116804
Other languages
English (en)
French (fr)
Inventor
A·齐格尔
Original Assignee
未势能源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 未势能源科技有限公司 filed Critical 未势能源科技有限公司
Publication of WO2021057716A1 publication Critical patent/WO2021057716A1/zh

Links

Images

Classifications

    • 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
    • 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
    • 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
    • F16K1/36—Valve 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
    • F16K17/36—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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves

Definitions

  • the application relates to the field of valve bodies, and in particular to a heat-activated pressure relief valve.
  • a heat-activated pressure relief valve is provided on the high-pressure hydrogen cylinder or/and the pipeline connected with the high-pressure hydrogen cylinder.
  • the temperature sensing unit of the thermally activated pressure relief valve can open the thermally activated pressure relief valve in time to release hydrogen to the atmosphere in time to prevent the vehicle from exploding due to the combustion of hydrogen , To ensure the safety of people in the car.
  • the temperature-sensing unit of the existing heat-activated pressure discharge valve blocks the opening of the heat-activated pressure discharge valve in the axial direction of the valve body of the heat-activated pressure discharge valve. When the heat-activated pressure discharge valve is heated, the temperature-sensing unit occurs at a high temperature. The deformation opens the opening of the heat-activated pressure relief valve to emit hydrogen gas.
  • the temperature-sensing unit is forced in the axial direction of the thermally activated pressure discharge valve, and the temperature-sensing unit is directly subjected to the pressure of the high-pressure hydrogen in the high-pressure hydrogen cylinder or pipeline.
  • the strength of the temperature sensing unit is generally low, and the temperature sensing unit is prone to damage when subjected to high pressure, causing hydrogen to escape from the thermally activated pressure relief valve during the normal operation of the vehicle , Poor reliability in use.
  • the purpose of this application is to propose a heat-activated pressure relief valve that can be used at least to a certain extent with higher reliability.
  • a heat-activated pressure relief valve includes a valve body, a bearing member, a temperature sensing unit, and a first valve core.
  • the valve body has a high-pressure side communication port and a low-pressure side communication port, the high-pressure side communication port and the low-pressure side
  • a fluid channel is connected between the communication ports, the first valve core is located in the fluid channel, and the temperature sensing unit is adapted to limit the bearing member to a radially inner side of the bearing member in the valve body. Locking position to ensure that the first valve core blocks the fluid passage.
  • the fluid channel includes: a first flow channel and a second flow channel, the flow cross-sectional area of the first flow channel is smaller than the flow cross-sectional area of the second flow channel, the first flow channel and the second flow channel
  • the first flow channel is in communication with the high-pressure side communication port
  • the second flow channel is in communication with the low-pressure side communication port
  • the bearing member restricted in the locked position is used to make the first A valve core is sealed in the first flow channel.
  • a second valve core is provided in the second flow passage, and the second valve core is provided with a second receiving groove suitable for receiving the first valve core, and the opening of the second receiving groove is connected to the second receiving groove.
  • the first valve core is directly opposite, at least part of the first valve core extends into the second receiving groove, and the bearing member in the locked position is positioned between the first valve core and the second receiving groove Between the groove walls of the groove.
  • the first valve core is provided with a first accommodating groove and an accommodating through hole suitable for accommodating the carrier, and at least part of the temperature sensing unit is located in the first accommodating groove and is suitable for holding the The carrier is restricted to the locked position.
  • the opening of the first accommodating groove is opposite to the second accommodating groove.
  • the temperature sensing unit is adapted to be supported between the bottom wall of the first accommodating groove and the bottom wall of the second accommodating groove.
  • the second valve core is provided with a first sealing element on the side facing the low pressure side communication port, the first sealing element is provided with a first ventilation hole, and the second valve core is suitable for supporting The first sealing member.
  • the second valve core has a valve body flow passage, and two ends of the valve body flow passage are respectively connected to the side wall of the second valve core and the second valve core facing the low pressure side communication port.
  • One side of the bottom wall is in communication, and the valve body flow passage is adapted to communicate with the first vent hole.
  • peripheral wall of the first valve core is provided with a second seal around the side facing the high-pressure side communication port.
  • the temperature sensing unit is a glass temperature sensing ball or a fusible alloy piece.
  • thermally activated pressure relief valve described in this application has the following advantages:
  • the thermally activated pressure relief valve of the present application by setting a bearing member and making the temperature-sensing unit restrict the bearing member in the locked position on the radial inner side of the bearing member, the bearing member can be thermally activated instead of the temperature-sensing unit
  • the pressure discharge valve axially comes from the gas pressure in the high-pressure vessel or pipeline, and the heat-activated pressure discharge valve has higher working reliability.
  • FIG. 1 is a schematic structural diagram of the heat-activated pressure relief valve according to the first embodiment of the application when the pressure vessel is working normally;
  • FIG. 2 is a schematic structural diagram of the heat-activated pressure relief valve opened when heated according to the first embodiment of the application;
  • FIG. 3 is a schematic diagram of the structure of the second valve core according to the first embodiment of the application.
  • FIG. 4 is a schematic structural diagram of the heat-activated pressure relief valve according to the second embodiment of the application when the pressure vessel is working normally;
  • Fig. 5 is a schematic structural diagram of the heat-activated pressure relief valve opened when heated according to the second embodiment of the application.
  • Thermally activated pressure relief valve 100 valve body 1, high-pressure side communication port 11, low-pressure side communication port 12, fluid passage 13, first flow passage 131, second flow passage 132, first valve core 2, first receiving groove 21, The receiving through hole 22, the second valve core 3, the second receiving groove 31, the valve body flow channel 32, the supporting member 4, the temperature sensing unit 5, the first sealing member 6, the first ventilation hole 61, and the second sealing member 7.
  • thermally activated pressure relief valve 100 of the embodiment of the present application will be described with reference to FIGS.
  • the thermally activated pressure relief valve 100 may include a valve body 1, a carrier 4, a temperature sensing unit 5, and a first valve core 2.
  • the valve body 1 has a high-pressure side communication port 11 and a low-pressure side communication port 12.
  • the high-pressure side communication port 11 and the low-pressure side communication port 12 are respectively located on two axially opposite sides of the thermally activated pressure relief valve 100, a fluid channel 13 is connected between the high-pressure side communication port 11 and the low-pressure side communication port 12, and the high-pressure side is connected
  • the port 11 is in communication with the high-pressure gas cylinder or the high-pressure pipeline of the pressure vessel of the vehicle, and the low-pressure side communication port 12 may be in communication with the outside atmosphere.
  • the “high temperature” in this application is described as a temperature lower than the combustion point of the high-pressure gas on the side of the high-pressure side communication port 11.
  • the first valve core 2 is located in the fluid channel 13, and the temperature sensing unit 5 is adapted to limit the bearing 4 in the locked position in the valve body 1 relative to the radial inner side of the bearing 4.
  • the temperature sensing unit 5 when the heat-activated pressure discharge valve 100 is at the normal operating temperature, the temperature sensing unit 5 is in the valve body 1, and in the radial direction of the valve body 1, the temperature sensing unit 5 is located inside the carrier 4 to press the carrier 4 Fixed in the locked position.
  • the bearing member 4 When the bearing member 4 is in the locked position, the bearing member 4 can fix the first valve core 2 in the fluid channel 13 and block the fluid channel 13, so that the static friction force of the temperature sensing unit 5 on the bearing member 4 can be in the valve
  • the axial direction of the body 1 is balanced with the pressure of the high-pressure gas on the side of the high-pressure side communication port 11 that the carrier 4 receives.
  • the carrier 4 can replace the temperature sensing unit 5 by the gas pressure from the high pressure vessel or pipeline in the axial direction of the thermally activated pressure relief valve 100.
  • the carrier 4 does not need to be subject to changes in high temperature, and a metal equivalent temperature sensing unit is used. 5
  • the higher-strength carrier 4 can make the heat-activated pressure relief valve 100 work more reliable.
  • the temperature sensing unit 5 When a high temperature situation occurs in situations such as a vehicle collision, as shown in Figures 2 and 5, the temperature sensing unit 5 is affected by the high temperature and deforms, thereby removing the restrictive force on the bearing member 4, so that the high-pressure side communicating port 11 The fluid pushes the first spool 2 to move, so that the first spool 2 no longer blocks the fluid passage 13, thereby allowing the high-pressure side communication port 11 to communicate with the low-pressure side communication port 12, and the fluid at the high-pressure side communication port 11 Under the action of the pressure difference, it can be discharged to a safe location such as the outside atmosphere through the low-pressure side communication port 12 in time (as shown by the arrows in Fig. 2 and Fig. 5), avoiding fluid accumulation at the high-pressure side communication port 11 and causing explosions, ensuring the personnel in the car Security.
  • a safe location such as the outside atmosphere through the low-pressure side communication port 12 in time (as shown by the arrows in Fig. 2 and Fig
  • the fluid channel 13 includes: a first flow channel 131 and a second flow channel 132, the first flow channel 131 is in communication with the second flow channel 132, and the first flow channel 131 It communicates with the high-pressure side communication port 11, the second flow passage 132 communicates with the low-pressure side communication port 12, and the carrier 4 restricted in the locked position is used to block the first valve core 2 in the first flow passage 131.
  • the temperature sensing unit 5 blocks the fluid channel 13 in the first flow channel 131.
  • the flow cross-section of the first flow channel 131 is the same as the cross-sectional area and shape of the temperature sensing unit 5, and the flow cross-sectional area of the first flow channel 131 is larger than the flow cross-sectional area of the second flow channel 132.
  • the first valve core 2 When the temperature sensing unit 5 is affected by high temperature and deforms, the first valve core 2 is no longer restricted by the carrier 4, and the fluid at the high-pressure side communication port 11 pushes the first valve core 2 from the first flow passage 131 under the action of the pressure difference.
  • the second flow channel 132 since the cross-sectional area of the temperature sensing unit 5 is smaller than the flow cross-sectional area of the second flow channel 132, fluid appears in the second flow channel 132 and the temperature sensing unit 5 in the second flow channel 132 at this time.
  • the channel 13 facilitates the fluid at the high-pressure side communication port 11 to be discharged to a safe location such as the outside atmosphere through the low-pressure side communication port 12.
  • a second valve core 3 is provided in the second flow passage 132, and the second valve core 3 can be fixed or positioned in the second flow passage 132 by bonding with the inner wall of the second flow passage 132.
  • the second spool 3 is provided with a second accommodating groove 31 suitable for accommodating the first spool 2.
  • the second accommodating groove 31 is a blind groove, and the opening of the second accommodating groove 31 is in line with the first spool 2 Yes, at least part of the first valve core 2 extends into the second receiving groove 31, and the bearing member 4 in the locked position is positioned between the groove walls of the first valve core 2 and the second receiving groove 31, thereby enabling the first
  • the valve core 2 is fixed in the fluid passage 13 to block the first flow passage 131.
  • the high-pressure fluid in the high-pressure side communication port 11 can push the first valve core 2 into the second containing groove 31, so that the second containing groove 31 can prevent the high-pressure fluid from changing The first spool 2 is pushed out of the fluid passage 13.
  • the first valve core 2 is provided with a first containing groove 21 and a containing through hole 22 suitable for containing the carrier 4, and the carrier 4 is positioned in the containing through hole 22 to accommodate the through hole.
  • the hole 22 communicates with the first receiving groove 21, and at least part of the temperature sensing unit 5 is located in the first receiving groove 21, so that the temperature sensing unit 5 can press the carrier 4 in the first receiving groove 21, so that the carrier 4 and the first receiving groove 21
  • the groove wall of the second receiving groove 31 outside the valve core 2 is pressed and fixed to ensure that the carrier 4 is restricted in the locked position and at the same time to ensure that the first valve core 2 blocks the first flow passage 131.
  • the temperature sensing unit 5 is only located in the first receiving tank 21. In other specific embodiments, as shown in FIG. 4, the temperature sensing unit 5 may also be located in the first receiving groove 21 and the second receiving groove 31 at the same time.
  • the opening of the first receiving groove 21 is opposite to the second receiving groove 31.
  • the first accommodating groove 21 and the second accommodating groove 31 together provide a larger space for the movement of the temperature sensing unit 5, and the deformed temperature sensing unit 5 in the first accommodating groove 21 can be moved into the second accommodating groove 31 .
  • the temperature sensing unit 5 when the heat-activated pressure discharge valve 100 is at a normal operating temperature, the temperature sensing unit 5 is adapted to be supported between the bottom wall of the first receiving groove 21 and the bottom wall of the second receiving groove 31. As a result, the positioning of the temperature sensing unit 5 is firm, thereby ensuring the effective stopping and fixing of the temperature sensing unit 5 to the carrier 4.
  • the second valve core 3 is provided with a first seal 6 on the side facing the low pressure side communication port 12, the first seal 6 is provided with a first vent 61, and the second The valve core 3 is adapted to be supported on the first seal 6.
  • the first seal 6 can prevent the second valve core 3 from falling out of the low-pressure side communication port 12, and the first vent hole 61 can provide a flow channel for the fluid at the high-pressure side communication port 11 to flow out of the low-pressure side communication port 12.
  • the first sealing member 6 may be a rubber sealing ring.
  • the second valve core 3 has a valve body flow passage 32, and two ends of the valve body flow passage 32 are respectively facing the side wall of the second valve core 3 and the second valve core 3 toward the low pressure.
  • the bottom wall on one side of the side communication port 12 communicates, and the valve body flow passage 32 is adapted to communicate with the first ventilation hole 61.
  • the valve body flow passage 32 may be The fluid on the side of the high-pressure side communication port 11 provides a smoother outflow path.
  • the peripheral wall of the first valve core 2 is provided with a second seal 7 around the side facing the high-pressure side communication port 11.
  • the second sealing element 7 can provide a better seal between the first valve core 2 and the peripheral wall of the flow passage, avoiding the high-pressure side communication port 11 side under normal operating temperature.
  • the fluid escapes from the thermally activated pressure relief valve 100.
  • the second seal 7 may be a rubber seal ring.
  • the temperature-sensing unit 5 is a glass temperature-sensing ball.
  • the glass temperature-sensing ball has good supporting strength at normal working temperature. The glass temperature-sensing ball heats up and ruptures at a high temperature, so that the glass temperature-sensitive ball is deformed. Separate the carrier 4 and remove the restraining force of the glass temperature-sensitive ball on the carrier 4.
  • the temperature sensing unit 5 may also be a fusible alloy piece.
  • the fusible alloy piece has better support strength at normal operating temperature, and the fusible alloy piece heats up and melts at a high temperature, so that the fusible alloy piece The deformation occurs to break away from the supporting member 4, and the restraining force of the fusible alloy member on the supporting member 4 is removed.
  • the pressure vessel of the embodiment of the present application is provided with the heat-activated pressure relief valve 100 as in any of the above-mentioned embodiments of the application, and the heat-activated pressure relief valve 100 can be installed on the high-pressure gas cylinder or/and pipeline of the pressure vessel.
  • the thermally activated pressure relief valve 100 by providing the thermally activated pressure relief valve 100, gas can be prevented from escaping through the thermally activated pressure relief valve 100 when the pressure vessel is working normally, and the pressure vessel can work reliably.
  • the pressure vessel may be a part of the hydrogen-oxygen fuel cell of the vehicle, such as a high-pressure hydrogen cylinder.
  • the vehicle of the embodiment of the present application is provided with a pressure vessel as in any of the foregoing embodiments of the present application.
  • the vehicle by providing a pressure vessel, the vehicle can work reliably.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

一种热激活排压阀，热激活排压阀(100)包括阀体(1)、承载件(4)、感温单元(5)、第一阀芯(2)，阀体具有高压侧连通口(11)和低压侧连通口(12)，高压侧连通口(11)和低压侧连通口(12)之间连接有流体通道(13)，第一阀芯(2)位于流体通道(13)内，感温单元(5)适于在阀体(1)内相对承载件(4)的径向内侧将承载件(4)限制在锁止位置以保证第一阀芯(2)封堵流体通道(13)，感温单元(5)适于受热发生形变以撤去对承载件(4)的限制力。

Description

热激活排压阀
相关申请的交叉引用
本申请要求申请日为2019年9月26日、申请号为201910917027.X、专利申请名称为“热激活排压阀”的优先权。
技术领域
本申请涉及阀体领域，具体而言，涉及一种热激活排压阀。
背景技术
相关技术中，随着新能源车辆的发展，氢氧燃料电池由于具有能量转换效率高、对环境友好等特点，在新能源车辆的应用越来越广泛。在设有氢氧燃料电池的车辆中，一般在车内预设高压氢气瓶，并通过将高压氢气瓶的氢气和空气中氧气在氢氧燃料电池内发生电化学反应产生电能，以实现氢氧燃料电池对车辆的供电。
由于高压氢气瓶内的氢气在高温下容易被点燃而发生爆炸，在高压氢气瓶或者/和与高压氢气瓶连接的管路上设有热激活排压阀。在车辆发生碰撞或车辆发生火灾等情形下而出现高温情况时，热激活排压阀的感温单元可以及时打开热激活排压阀，从而将氢气及时放出至大气，避免车辆由于氢气燃烧而爆炸，保证车内人员的安全。
现有的热激活排压阀的感温单元在热激活排压阀的阀体的轴向封堵热激活排压阀的开口，当热激活排压阀受热时，感温单元在高温下发生形变将热激活排压阀的开口打开而发出氢气。
在该技术方案中，感温单元在热激活排压阀的轴向受力，感温单元直接受到高压氢气瓶或管路的高压氢气的压力。同时，由于感温单元需要在温度升高时发生形变，感温单元的强度一般较低，感温单元受到高压作用时容易发生破坏，导致氢气在车辆正常工作中从热激活排压阀逸出，使用可靠性差。
发明内容
有鉴于此，本申请的目的旨在提出一种至少能在一定程度上使用可靠性更高的热激活排压阀。
为达到上述目的，本申请的技术方案是这样实现的：
一种热激活排压阀，包括阀体、承载件、感温单元、第一阀芯，所述阀体具有高压侧 连通口和低压侧连通口，所述高压侧连通口和所述低压侧连通口之间连接有流体通道，所述第一阀芯位于所述流体通道内，所述感温单元适于在所述阀体内相对所述承载件的径向内侧将所述承载件限制在锁止位置，以保证所述第一阀芯封堵所述流体通道。
进一步地，所述流体通道包括：第一流道和第二流道，所述第一流道的流动截面积小于所述第二流道的流动截面积，所述第一流道与所述第二流道连通，所述第一流道与所述高压侧连通口连通，所述第二流道与所述低压侧连通口连通，限制在所述锁止位置的所述承载件用于令所述第一阀芯封堵在所述第一流道内。
进一步地，所述第二流道内设有第二阀芯，所述第二阀芯设有适于容纳所述第一阀芯的第二容纳槽，所述第二容纳槽的开口与所述第一阀芯正对，所述第一阀芯的至少部分伸入所述第二容纳槽，所述锁止位置的所述承载件定位在所述第一阀芯与所述第二容纳槽的槽壁之间。
进一步地，所述第一阀芯设有第一容纳槽以及适于容纳所述承载件的容纳通孔，所述感温单元的至少部分位于所述第一容纳槽内并适于将所述承载件限制在所述锁止位置。
进一步地，所述第一容纳槽的开口与所述第二容纳槽相对。
进一步地，所述感温单元适于支撑在所述第一容纳槽的底壁与第二容纳槽的底壁之间。
进一步地，所述第二阀芯在朝向所述低压侧连通口的一侧设有第一密封件，所述第一密封件设有第一通风孔，所述第二阀芯适于支撑在所述第一密封件上。
进一步地，所述第二阀芯具有阀体流道，所述阀体流道的两端分别与所述第二阀芯的侧壁以及所述第二阀芯朝向所述低压侧连通口的一侧的底壁连通，所述阀体流道适于与所述第一通风孔连通。
进一步地，所述第一阀芯的周壁在朝向所述高压侧连通口的一侧环绕设有第二密封件。
进一步地，所述感温单元为玻璃感温球或易熔合金件。
相对于现有技术，本申请所述的热激活排压阀具有以下优势：
1)根据本申请的热激活排压阀，通过设置承载件，并令感温单元在承载件的径向内侧将所述承载件限制在锁止位置，承载件可以代替感温单元受到热激活排压阀轴向的来自高压容器或管路中的气体压力，热激活排压阀的工作可靠性更高。
附图说明
构成本申请的一部分的附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1为本申请的第一实施例所述的热激活排压阀在压力容器正常工作时的结构示意图；
图2为本申请的第一实施例所述的热激活排压阀在受热时开启的结构示意图；
图3为本申请的第一实施例所述的第二阀芯的结构示意图；
图4为本申请的第二实施例所述的热激活排压阀在压力容器正常工作时的结构示意图；
图5为本申请的第二实施例所述的热激活排压阀在受热时开启的结构示意图。
附图标记说明：
热激活排压阀100，阀体1，高压侧连通口11，低压侧连通口12，流体通道13，第一流道131，第二流道132，第一阀芯2，第一容纳槽21，容纳通孔22，第二阀芯3，第二容纳槽31，阀体流道32，承载件4，感温单元5，第一密封件6，第一通风孔61，第二密封件7。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
下面将参考附图并结合实施例来详细说明本申请。
下面参考图1-图5并结合实施例描述本申请实施例的热激活排压阀100。
如图1-图5所示，热激活排压阀100可以包括阀体1、承载件4、感温单元5、第一阀芯2，阀体1具有高压侧连通口11和低压侧连通口12，高压侧连通口11和低压侧连通口12分别位于热激活排压阀100轴向相对的两侧，高压侧连通口11和低压侧连通口12之间连接有流体通道13，高压侧连通口11与车辆的压力容器的高压气瓶或高压管路连通，低压侧连通口12可以与外界大气连通。需要说明的是，如非特殊说明，本申请的“高温”描述为低于高压侧连通口11侧的高压气体的燃烧点的温度。
如图1、图4所示，第一阀芯2位于流体通道13内，感温单元5适于在阀体1内相对承载件4的径向内侧将承载件4限制在锁止位置。
换言之，热激活排压阀100位于正常工作温度时，感温单元5在阀体1内，且在阀体1的径向上，感温单元5位于承载件4的内侧以将承载件4抵压固定在锁止位置。当承载件4位于锁止位置时，承载件4可以将第一阀芯2固定在流体通道13内并封堵流体通道13，由此，感温单元5对承载件4的静摩擦力可以在阀体1的轴向上与承载件4受到的高压侧连通口11侧的高压气体的压力平衡。由此，承载件4可以代替感温单元5受到热激活排压阀100轴向的来自高压容器或管路中的气体压力，承载件4无需受到高温产生变化，采用金属件等比感温单元5强度更高的承载件4可以使热激活排压阀100的工作可靠性更高。
当车辆发生碰撞等情形下而出现高温情况时，如图2和图5所示，感温单元5受到高温影响发生形变，从而撤去对承载件4的限制力，以使高压侧连通口11处的流体推动第一阀芯2移动，以使第一阀芯2不再封堵流体通道13，从而并使高压侧连通口11和低压侧 连通口12连通，高压侧连通口11处的流体在压差作用下可以及时通过低压侧连通口12排出至外界大气等安全位置(如图2和图5的箭头所示)，避免流体堆积在高压侧连通口11处产生爆炸，保证了车内人员的安全。
具体地，如图1、图2、图4和图5所示，流体通道13包括：第一流道131和第二流道132，第一流道131与第二流道132连通，第一流道131与高压侧连通口11连通，第二流道132与低压侧连通口12连通，限制在锁止位置的承载件4用于令第一阀芯2封堵在第一流道131内。承载件4位于锁止位置时，感温单元5在第一流道131内封堵流体通道13。第一流道131的流动截面和感温单元5的横截面面积和形状相同，第一流道131的流动截面积大于第二流道132的流动截面积。
当感温单元5受到高温影响发生形变时，第一阀芯2不再受到承载件4的限制，高压侧连通口11处的流体在压差作用下推动第一阀芯2从第一流道131移动至第二流道132，由于感温单元5的横截面积小于第二流道132的流动截面积，此时在第二流道132与第二流道132内的感温单元5出现流体通道13，以便于高压侧连通口11处的流体通过低压侧连通口12排出至外界大气等安全位置。
具体地，如图1-图5所示，第二流道132内设有第二阀芯3，第二阀芯3可以通过与第二流道132内壁粘接等方式固定或定位在第二流道132内，第二阀芯3设有适于容纳第一阀芯2的第二容纳槽31，第二容纳槽31为盲槽，第二容纳槽31的开口与第一阀芯2正对，第一阀芯2的至少部分伸入第二容纳槽31，锁止位置的承载件4定位在第一阀芯2与第二容纳槽31的槽壁之间，由此可以使第一阀芯2固定在流体通道13内以封堵第一流道131。同时，当感温单元5受到高温影响发生形变后，高压侧连通口11的高压流体可以推动第一阀芯2进入第二容纳槽31内，由此，第二容纳槽31可以避免高压流体将第一阀芯2推出流体通道13。
具体地，如图1和图4所示，第一阀芯2设有第一容纳槽21以及适于容纳承载件4的容纳通孔22，承载件4定位在容纳通孔22内，容纳通孔22与第一容纳槽21连通，感温单元5的至少部分位于第一容纳槽21内，从而感温单元5可以在第一容纳槽21内抵压承载件4，从而承载件4与第一阀芯2外的第二容纳槽31的槽壁抵压固定，保证承载件4限制在锁止位置，同时保证第一阀芯2封堵第一流道131。例如，当热激活排压阀100位于正常工作温度时，在一些具体的实施例中，如图1所示，感温单元5仅位于第一容纳槽21内。在另一些具体的实施例中，如图4所示，感温单元5也可以同时位于第一容纳槽21和第二容纳槽31内。
具体地，如图1、图2、图4和图5所示，第一容纳槽21的开口与第二容纳槽31相对。由此，第一容纳槽21和第二容纳槽31共同为感温单元5的移动提供较大空间，第一容纳 槽21内的产生形变的感温单元5可以移动至第二容纳槽31内。
具体地，如图1所示，当热激活排压阀100位于正常工作温度时，感温单元5适于支撑在第一容纳槽21的底壁与第二容纳槽31的底壁之间。由此，感温单元5的定位牢固，进而保证感温单元5对承载件4的有效止抵固定。
具体地，如图2和图5所示，第二阀芯3在朝向低压侧连通口12的一侧设有第一密封件6，第一密封件6设有第一通风孔61，第二阀芯3适于支撑在第一密封件6上。由此，第一密封件6可以防止第二阀芯3从低压侧连通口12脱出，第一通风孔61可以为高压侧连通口11处的流体从低压侧连通口12流出提供流动通道。更加具体地，第一密封件6可以为橡胶密封圈。
具体地，如图2和图5所示，第二阀芯3具有阀体流道32，阀体流道32的两端分别与第二阀芯3的侧壁以及第二阀芯3朝向低压侧连通口12的一侧的底壁连通，阀体流道32适于与第一通风孔61连通。高压侧连通口11侧的流体流动至第二流道132与第二阀芯3之间的空间时，可以进一步通过阀体流道32流动至第一通风口处，阀体流道32可以为高压侧连通口11侧的流体提供更流畅的流出通道。
具体地，如图1和图4所示，第一阀芯2的周壁在朝向高压侧连通口11的一侧环绕设有第二密封件7。当第一阀芯2封堵流体通道13时，第二密封件7可以使第一阀芯2与流动通道的周壁之间提供更好的密封性，避免正常工作温度下高压侧连通口11侧的流体从热激活排压阀100逸出。更加具体地，第二密封件7可以为橡胶密封圈。
在一些具体的实施例中，感温单元5为玻璃感温球，正常工作温度下玻璃感温球具有较好的支撑强度，高温下玻璃感温球升温破裂，从而玻璃感温球发生形变以脱离承载件4，撤去玻璃感温球对承载件4的限制力。
在另一些具体的实施例中，感温单元5也可以为易熔合金件，正常工作温度下易熔合金件具有较好的支撑强度，高温下易熔合金件升温熔化，从而易熔合金件发生形变以脱离承载件4，撤去易熔合金件对承载件4的限制力。
下面描述本申请实施例的压力容器。
本申请实施例的压力容器设有如本申请上述任一种实施例的热激活排压阀100，热激活排压阀100可以安装在压力容器的高压气瓶或/和管路上。
根据本申请实施例的压力容器，通过设置热激活排压阀100，可以避免气体在压力容器正常工作时通过热激活排压阀100逸出，压力容器工作可靠。
在一些具体的实施例中，压力容器可以为车辆的氢氧燃料电池的一部分，例如高压氢气瓶。
下面描述本申请实施例的车辆。
本申请实施例的车辆设有如本申请上述任一种实施例的压力容器。
根据本申请实施例的车辆，通过设置压力容器，车辆的工作可靠。
以上仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种热激活排压阀(100)，其特征在于，包括：阀体(1)、承载件(4)、感温单元(5)、第一阀芯(2)，所述阀体具有高压侧连通口(11)和低压侧连通口(12)，所述高压侧连通口(11)和所述低压侧连通口(12)之间连接有流体通道(13)，所述第一阀芯(2)位于所述流体通道(13)内；
    所述感温单元(5)适于在所述阀体(1)内相对所述承载件(4)的径向内侧将所述承载件(4)限制在锁止位置以保证所述第一阀芯(2)封堵所述流体通道(13)。
  2. 根据权利要求1所述的热激活排压阀(100)，其特征在于，所述流体通道(13)包括：第一流道(131)和第二流道(132)，所述第一流道(131)的流动截面积小于所述第二流道(132)的流动截面积，所述第一流道(131)与所述第二流道(132)连通，所述第一流道(131)与所述高压侧连通口(11)连通，所述第二流道(132)与所述低压侧连通口(12)连通，限制在所述锁止位置的所述承载件(4)用于令所述第一阀芯(2)封堵在所述第一流道(131)内。
  3. 根据权利要求2所述的热激活排压阀(100)，其特征在于，所述第二流道(132)内设有第二阀芯(3)，所述第二阀芯(3)设有适于容纳所述第一阀芯(2)的第二容纳槽(31)，所述第二容纳槽(31)为盲槽，所述第二容纳槽(31)的开口与所述第一阀芯(2)正对，所述第一阀芯(2)的至少部分伸入所述第二容纳槽(31)，所述锁止位置的所述承载件(4)定位在所述第一阀芯(2)与所述第二容纳槽(31)的槽壁之间。
  4. 根据权利要求3所述的热激活排压阀(100)，其特征在于，所述第一阀芯(2)设有第一容纳槽(21)以及适于容纳所述承载件(4)的容纳通孔(22)，所述感温单元(5)的至少部分适于位于所述第一容纳槽(21)内并将所述承载件(4)限制在所述锁止位置。
  5. 根据权利要求4所述的热激活排压阀(100)，其特征在于，所述第一容纳槽(21)的开口与所述第二容纳槽(31)相对。
  6. 根据权利要求5所述的热激活排压阀(100)，其特征在于，所述感温单元(5)适于支撑在所述第一容纳槽(21)的底壁与第二容纳槽(31)的底壁之间。
  7. 根据权利要求3所述的热激活排压阀(100)，其特征在于，所述第二阀芯(3)在朝向所述低压侧连通口(12)的一侧设有第一密封件(6)，所述第一密封件(6)设有第一通风孔(61)，所述第二阀芯(3)适于支撑在所述第一密封件(6)上。
  8. 根据权利要求7所述的热激活排压阀(100)，其特征在于，所述第二阀芯(3)具有阀体流道(32)，所述阀体流道(32)的两端分别与所述第二阀芯(3)的侧壁以及所述第二阀芯(3)朝向所述低压侧连通口(12)的一侧的底壁连通，所述阀体流道(32)适于 与所述第一通风孔(61)连通。
  9. 根据权利要求1所述的热激活排压阀(100)，其特征在于，所述第一阀芯(2)的周壁在朝向所述高压侧连通口(11)的一侧环绕设有第二密封件(7)。
  10. 根据权利要求1-9中任一项所述的热激活排压阀(100)，其特征在于，所述感温单元(5)为玻璃感温球或易熔合金件。
PCT/CN2020/116804 2019-09-26 2020-09-22 热激活排压阀 WO2021057716A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910917027.X 2019-09-26
CN201910917027.XA CN112555478B (zh) 2019-09-26 2019-09-26 热激活排压阀

Publications (1)

Publication Number Publication Date
WO2021057716A1 true WO2021057716A1 (zh) 2021-04-01

Family

ID=75029845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/116804 WO2021057716A1 (zh) 2019-09-26 2020-09-22 热激活排压阀

Country Status (2)

Country Link
CN (1) CN112555478B (zh)
WO (1) WO2021057716A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136908A1 (en) * 2009-05-25 2010-12-02 Cavagna Group S.P.A. Safety device for valves and/or containers under pressure
WO2016070260A1 (en) * 2014-11-05 2016-05-12 Luxfer Canada Limited Thermal pressure relief device
DE102016106328A1 (de) * 2016-04-06 2017-10-12 Mesa Parts GmbH Vorrichtung zum temperaturabhängigen Abbau des Drucks eines in einem Drucktank gelagerten Mediums
CN107289163A (zh) * 2017-06-30 2017-10-24 上海百图低温阀门有限公司 车用高压压缩氢气瓶用安全装置
CN207161809U (zh) * 2017-06-17 2018-03-30 嘉兴依相动力科技有限公司 一种瓶阀的温度安全装置
CN207454847U (zh) * 2017-11-24 2018-06-05 丹阳市飞轮气体阀门有限公司 一种用于高压气瓶的安全泄压装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29820264U1 (de) * 1998-11-12 1999-01-14 Streif Hans Temperaturempfindliche Absperrarmatur
DE102004058302A1 (de) * 2004-09-17 2006-03-23 Bosch Rexroth Aktiengesellschaft Dichtbuchse, hydraulisches Gerät und Rückschlagventil
WO2012123974A1 (en) * 2011-03-14 2012-09-20 Emer S.P.A. Relief device, in particular for gas systems
CN202315055U (zh) * 2011-11-04 2012-07-11 洪雄科 一种温感阀
CN204083410U (zh) * 2014-10-15 2015-01-07 常景泓 多功能防火燃气安全阀
RU157231U1 (ru) * 2015-04-24 2015-11-27 Елена Сергеевна Лазарева Термозапорный клапан
CN105757292B (zh) * 2016-04-15 2018-06-29 厦门松霖科技股份有限公司 一种浴缸排冷装置
CN206159588U (zh) * 2016-10-25 2017-05-10 日丰企业集团有限公司 温感截止阀
CN208919425U (zh) * 2018-08-02 2019-05-31 上海舜华新能源系统有限公司 一种高压气瓶安全泄放装置
CN109236614B (zh) * 2018-11-01 2023-10-17 南京尚爱机械制造有限公司 一种活塞式压缩机控制气缸冷却水流量的温控阀

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136908A1 (en) * 2009-05-25 2010-12-02 Cavagna Group S.P.A. Safety device for valves and/or containers under pressure
WO2016070260A1 (en) * 2014-11-05 2016-05-12 Luxfer Canada Limited Thermal pressure relief device
DE102016106328A1 (de) * 2016-04-06 2017-10-12 Mesa Parts GmbH Vorrichtung zum temperaturabhängigen Abbau des Drucks eines in einem Drucktank gelagerten Mediums
CN207161809U (zh) * 2017-06-17 2018-03-30 嘉兴依相动力科技有限公司 一种瓶阀的温度安全装置
CN107289163A (zh) * 2017-06-30 2017-10-24 上海百图低温阀门有限公司 车用高压压缩氢气瓶用安全装置
CN207454847U (zh) * 2017-11-24 2018-06-05 丹阳市飞轮气体阀门有限公司 一种用于高压气瓶的安全泄压装置

Also Published As

Publication number Publication date
CN112555478B (zh) 2022-04-22
CN112555478A (zh) 2021-03-26

Similar Documents

Publication Publication Date Title
JP4776970B2 (ja) ガス燃料車両および自動排出システム
US10529970B2 (en) Pressure equalising device
EP3306705B1 (en) Pressure relief mechanism
CN102227563B (zh) 蓄能器
KR101180996B1 (ko) 자동차용 고압 가스 연료탱크의 화재안전장치
CN211371398U (zh) 一种用于高压氢气集成瓶阀的泄放装置
WO2015056696A1 (ja) 安全弁
WO2021057714A1 (zh) 热激活排压阀和压力容器
CN113261150A (zh) 用于机动车的电池壳
JP2023529224A (ja) 熱作動式圧力逃し装置（ｔｐｒｄ）、ガス圧力タンク、およびｔｐｒｄを含むガス圧力タンクシステム、ならびに熱過剰圧力保護のための方法
WO2021057716A1 (zh) 热激活排压阀
JP4427371B2 (ja) 安全弁
US20230291067A1 (en) Pressure equalization device, method for pressure equalization and housing
JP4900714B2 (ja) 可溶栓
JP2010127332A (ja) アキュムレータ
JP2008095731A (ja) 安全弁
CN112901840A (zh) 泄压阀以及配备其的燃料电池的流体供应系统
CN210462462U (zh) 一种改性的新型气瓶尾阀
US20220399610A1 (en) Pressure compensation device for a component with a sealed interior, in particular for a battery housing, and battery housing with such pressure compensation device
WO2023078721A1 (en) Gas venting unit and electronics housing with a gas venting unit
CN217567235U (zh) 活塞式非储压灭火筒和活塞式非储压灭火器
CN215911511U (zh) 电池包的下壳体及车辆
CN214273410U (zh) 一种核电厂非能动泄压特种门
US10336287B2 (en) Gas generator
GB2623878A (en) Cell housing with protection of a burst region

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20867051

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20867051

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 20867051

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 14/10/2022)

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 14/10/2022)

122 Ep: pct application non-entry in european phase

Ref document number: 20867051

Country of ref document: EP

Kind code of ref document: A1