WO2021057714A1 - 热激活排压阀和压力容器 - Google Patents

热激活排压阀和压力容器 Download PDF

Info

Publication number
WO2021057714A1
WO2021057714A1 PCT/CN2020/116801 CN2020116801W WO2021057714A1 WO 2021057714 A1 WO2021057714 A1 WO 2021057714A1 CN 2020116801 W CN2020116801 W CN 2020116801W WO 2021057714 A1 WO2021057714 A1 WO 2021057714A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve core
valve
communication port
side communication
pressure
Prior art date
Application number
PCT/CN2020/116801
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 WO2021057714A1 publication Critical patent/WO2021057714A1/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 and a pressure vessel.
  • 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 heat-activated pressure relief valve can open the heat-activated pressure relief valve in time to release hydrogen to the atmosphere in time to prevent the vehicle from exploding due to hydrogen combustion , 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 relief valve, and the temperature sensing unit is directly exposed to the gas pressure in the high-pressure container 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 and has 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 the radially outer side of the bearing member in the valve body. The locking position ensures 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.
  • the outer peripheral surface of the first valve core is provided with a mounting groove suitable for accommodating the carrier, and the temperature sensing unit is located between the second flow passage and the first valve core and is suitable for mounting The carrier is restricted to the locked position.
  • 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, the second valve core is provided with a receiving through hole suitable for receiving the carrier, the second receiving groove is a through groove, and the first valve core is provided with a through hole facing the A first containing groove with an opening on the low-pressure side communication port, the first containing groove is a blind groove, the first valve core has a valve body flow passage, and two ends of the valve body flow passage are respectively connected to the first valve core
  • the side wall of the vehicle is in communication with the first containing groove.
  • the outer peripheral wall of the first valve core is provided with a stopper protrusion adapted to stop and limit the second valve core, and the stopper protrusion is set to be: when the stopper protrusion and the second valve core When the second valve core stops against the limit, the opening on the side wall of the first valve core communicating with the valve body flow passage is located in the second flow passage.
  • 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 fluid at the high-pressure side communication port is suitable for pushing the first valve core to pass through the first ventilation 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 providing a bearing member and making the temperature-sensing unit restrict the bearing member in the locked position on the radially outer 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.
  • the second objective of the present application is to provide a pressure vessel including any one of the heat-activated pressure relief valves described above.
  • the pressure vessel described in this application has the following advantages:
  • FIG. 1 is a schematic structural diagram of the heat-activated pressure relief valve according to an 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 an 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, Mounting groove 22, valve body flow passage 23, stop protrusion 24, second valve core 3, second containing groove 31, containing through hole 32, carrier 4, temperature sensing unit 5, first sealing member 6, first Ventilation hole 61, second sealing element 7.
  • thermally activated pressure relief valve 100 of the embodiment of the present application will be described with reference to FIGS. 1 to 2 in conjunction with the embodiments.
  • the thermally activated pressure relief valve 100 may include a thermally activated pressure relief valve 100 that 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.
  • the communication port 11 and the 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 heat activated pressure relief valve 100, and the high-pressure side communication port 11 and the low-pressure side communication port 12 are connected There is a fluid channel 13, the high-pressure side communication 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 can 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 carrier 4 in the locked position in the valve body 1 relative to the radial outer side of the carrier 4.
  • the temperature sensing unit 5 when the heat-activated pressure relief valve 100 is at the normal operating temperature, the temperature sensing unit 5 is inside the valve body 1, and in the radial direction of the valve body 1, the temperature sensing unit 5 is located outside 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 a vehicle collision or other situation, as shown in Figure 2, 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 fluid at the high-pressure side communication port 11 is pushed
  • the first spool 2 moves so that the first spool 2 no longer blocks the fluid passage 13 and connects the high-pressure side communication port 11 with the low-pressure side communication port 12, and the fluid at the high-pressure side communication port 11 acts on 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 arrow in FIG. 2), so as to prevent fluid from accumulating at the high-pressure side communication port 11 to cause explosion, and to ensure the safety of the occupants in the vehicle.
  • the fluid passage 13 includes a first flow passage 131 and a second flow passage 132, the first flow passage 131 is in communication with the second flow passage 132, and the first flow passage 131 is connected to the high-pressure side communication port 11 Connected, 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 area and size of the flow cross section of the first flow channel 131 and the cross section of the temperature sensing unit 5 are the same, and the flow cross-sectional area of the first flow channel 131 is smaller 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.
  • the outer peripheral surface of the first valve core 2 is provided with a mounting groove 22 suitable for accommodating the carrier 4, and the temperature sensing unit 5 is located between the second flow passage 132 and the first valve core 2. It is also suitable for restricting the carrier 4 in the locked position.
  • the first valve core 2 can be fixed in the fluid passage 13 to block the first flow passage 131.
  • the temperature sensing unit 5 is deformed under the influence of high temperature, the high-pressure fluid in the high-pressure side communication port 11 can push the first valve core 2 into the second flow passage 132.
  • 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.
  • Runner 132 The second valve core 3 is provided with a second accommodating groove 31 suitable for accommodating the first spool 2, and the opening of the second accommodating groove 31 is directly opposite to the first spool 2, and the second valve core 3 is provided with a supporting member suitable for accommodating 4, the second containing groove 31 is a through groove, the first valve core 2 can be pushed by the fluid of the high-pressure side communication port 11 to penetrate the second containing groove 31, and the second containing groove 31 can be the first Spool 2 provides guidance.
  • the first spool 2 is provided with a first containing groove 21 that opens toward the low-pressure side communication port 12, the first accommodating groove 21 is a blind groove, and the first spool 2 has a valve body flow passage 23.
  • the two ends of the valve body flow passage 23 are respectively communicated with the side wall of the first valve core 2 and the first receiving groove 21.
  • the high-pressure fluid on the side of the high-pressure side communication port 11 flows to the second flow passage 132 and the first valve core 2 After the space therebetween, it flows through the valve body flow passage 23 to the first accommodating tank 21, and further flows out of the low-pressure side communication port 12 through the opening of the first accommodating tank 21. Therefore, after the temperature sensing unit 5 is deformed under the influence of high temperature, the high-pressure fluid on the side of the high-pressure side communication port 11 can smoothly flow out of the heat-activated pressure relief valve 100.
  • the second valve core 3 is provided with an accommodating through hole 32 communicating with the second accommodating groove 31, the carrier 4 is positioned in the accommodating through hole 32, the accommodating through hole 32 and the first accommodating groove 21
  • the temperature sensing unit 5 is fixed between the outer peripheral wall of the second valve core 3 and the inner peripheral wall of the second flow passage 132.
  • the receiving through hole 32 is directly opposite to the mounting groove 22.
  • the supporting member 4 located in the containing groove passes through the containing through hole 32 and then is positioned against the temperature sensing unit 5, so that the positioning of the first valve core 2 by the supporting member 4 can be achieved.
  • the outer peripheral wall of the first valve core 2 is provided with a stop protrusion 24 suitable for stop and limit with the second valve core 3, and the stop protrusion 24 can prevent the first
  • the valve core 2 is pushed out of the fluid passage 13 by the high-pressure fluid on the side of the high-pressure side communication port 11.
  • the position of the stop protrusion 24 on the first valve core 2 is set such that when the stop protrusion 24 and the second valve core 3 stop and limit, the side wall of the first valve core 2 communicates with the valve body flow passage 23 The opening of is located in the second flow channel 132.
  • the second valve core 3 is provided with a first sealing member 6 on the side facing the low-pressure side communication port 12, the first sealing member 6 is provided with a first ventilation hole 61, and the second valve core 3 It is suitable 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 first valve core 2 is opposite to the first ventilation hole 61, and the flow cross-sectional area of the first ventilation hole 61 is larger than the cross-sectional area of the first valve core 2, and the carrier 4 is out of the locked position Later, the fluid at the high-pressure side communication port 11 can push the first valve core 2 to pass through the first ventilation hole 61, which can ensure that the first valve core 2 smoothly enters the second flow passage 132 and ensure the high-pressure side communication port 11 The high-pressure fluid smoothly flows out from the low-pressure side communication port 12 via the fluid passage 13.
  • 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.

Landscapes

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

Abstract

一种热激活排压阀和压力容器，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(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)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)的径向外侧将承载件(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

热激活排压阀和压力容器
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201910917025.0、专利申请名称为“热激活排压阀和压力容器”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和压力容器。
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、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容器或管路中的气体压力。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，本申请旨在提出一种至少能在一定程度上使用可靠性更高的的热激活排压阀。
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外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，所述第一阀芯的外周面设有适于容纳所述承载件的安装槽，所述感温单元位于所述第二流道与所述第一阀芯之间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，所述第二阀芯设有适于容纳所述承载件的容纳通孔，所述第二容纳槽为通槽，所述第一阀芯内设有朝向所述低压侧连通口开口的第一容纳槽，所述第一容纳槽为盲槽，所述第一阀芯具有阀体流道，所述阀体流道的两端分别与所述第一阀芯的侧壁以及所述第一容纳槽连通。
进一步地，所述第一阀芯的外周壁设有适于与所述第二阀芯止抵限位的止抵凸起，所述止抵凸起设置为：当所述止抵凸起与所述第二阀芯止抵限位时，所述第一阀芯侧壁上与所述阀体流道连通的开孔位于所述第二流道内。
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，所述高压侧连通口处的流体适于推动所述第一阀芯穿设所述第一通风孔。
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外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。
本申请的第二目的在于提出一种压力容器，包括上述任一种所述的热激活排压阀。
相对于现有技术，本申请所述的压力容器具有以下优势：
1)根据本申请的压力容器，通过设置热激活排压阀，可以避免气体在压力容器正常工作时通过热激活排压阀逸出，压力容器工作可靠。
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，安装槽22，阀体流道23，止抵凸起24，第二阀芯3，第二容纳槽31，容纳通孔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2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2所示，热激活排压阀100可以包括热激活排压阀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的径向外侧将承载件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的外侧以将承载件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的横截面的面积和大小均相同，第一流道131的流动截面积小于第二流道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和图2所示，第一阀芯2的外周面设有适于容纳承载件4的安装槽22，感温单元5位于第二流道132与第一阀芯2之间并适于将承载件4限制在锁止位置。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进入第二流道132内。
具体地，如图1和图2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的开口与第一阀芯2正对，第二阀芯3设有适于容纳承载件4的容纳通孔32，第二容纳槽31为通槽，第一阀芯2可以在高压侧连通口11的流体的推动下穿设第二容纳槽31，第二容纳槽31可以为第一阀芯2提供导向。
如图1-图2所示，第一阀芯2内设有朝向低压侧连通口12开口的第一容纳槽21，第一容纳槽21为盲槽，第一阀芯2具有阀体流道23，阀体流道23的两端分别与第一阀芯2的侧壁以及第一容纳槽21连通。由此，阀体流道23与第一阀芯2的侧壁连通的开口进入第二流道132后，高压侧连通口11侧的高压流体流动至第二流道132与第一阀芯2之间的空间后，通过阀体流道23流动至第一容纳槽21后，进一步通过第一容纳槽21的开口流出低压侧连通口12。由此可以使感温单元5受到高温影响发生形变后，高压侧连通口11侧的高压流体能从热激活排压阀100顺利流出。
如图1和图2所示，第二阀芯3设有与第二容纳槽31连通的容纳通孔32，承载件4 定位在容纳通孔32内，容纳通孔32与第一容纳槽21连通，承载件4位于锁止位置时，感温单元5固定在第二阀芯3的外周壁与第二流道132的内周壁之间，此时容纳通孔32与安装槽22正对，位于容纳槽内的承载件4穿过容纳通孔32后与感温单元5止抵定位，由此可以实现承载件4对第一阀芯2的定位。
具体地，如图1和图2所示，第一阀芯2的外周壁设有适于与第二阀芯3止抵限位的止抵凸起24，止抵凸起24可以防止第一阀芯2被高压侧连通口11侧的高压流体推出流体通道13。止抵凸起24在第一阀芯2上的位置设置为：当止抵凸起24与第二阀芯3止抵限位时，第一阀芯2侧壁上与阀体流道23连通的开孔位于第二流道132内。由此，止抵凸起24与第二阀芯3止抵限位时，可以保证高压侧连通口11侧的高压流体顺利进入第二流道132内，并从阀体流道23流出流体通道13。
具体地，如图2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所示，第一阀芯2与第一通风孔61相对，且第一通风孔61的流动截面积大于第一阀芯2的横截面积，承载件4脱离锁止位置后，高压侧连通口11处的流体可以推动第一阀芯2穿设第一通风孔61，由此可以保证第一阀芯2顺利进入第二流道132内，保证高压侧连通口11的高压流体经由流体通道13从低压侧连通口12顺利流出。
具体地，如图1和图2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。
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)的径向外侧将所述承载件(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，所述第一阀芯(2)的外周面设有适于容纳所述承载件(4)的安装槽(22)，所述感温单元(5)位于所述第二流道(132)与所述第一阀芯(2)之间并适于将所述承载件(4)限制在所述锁止位置。
  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)的开口与所述第一阀芯(2)正对，所述第二阀芯(3)设有适于穿设所述承载件(4)的容纳通孔(32)，所述第二容纳槽(31)为通槽，所述第一阀芯(2)内设有朝向所述低压侧连通口(12)开口的第一容纳槽(21)，所述第一容纳槽(21)为盲槽，所述第一阀芯(2)具有阀体流道(23)，所述阀体流道(23)的两端分别与所述第一阀芯(2)的侧壁以及所述第一容纳槽(21)连通。
  5. 根据权利要求4所述的热激活排压阀(100)，其特征在于，所述第一阀芯(2)的外周壁设有适于与所述第二阀芯(3)止抵限位的止抵凸起(24)，所述止抵凸起(24)设置为：当所述止抵凸起(24)与所述第二阀芯(3)止抵限位时，所述第一阀芯(2)侧壁上与所述阀体流道连通的开孔位于所述第二流道(132)内。
  6. 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。
  7. 根据权利要求6所述的热激活排压阀(100)，其特征在于，所述高压侧连通口(11) 处的流体适于推动所述第一阀芯(2)穿设所述第一通风孔(61)。
  8. 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)。
  9. 根据权利要求1-8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。
  10. 一种压力容器，其特征在于，设置有如权利要求1-9中任一项所述的热激活排压阀(100)。
PCT/CN2020/116801 2019-09-26 2020-09-22 热激活排压阀和压力容器 WO2021057714A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910917025.0A CN112555477B (zh) 2019-09-26 2019-09-26 热激活排压阀和压力容器
CN201910917025.0 2019-09-26

Publications (1)

Publication Number Publication Date
WO2021057714A1 true WO2021057714A1 (zh) 2021-04-01

Family

ID=75030043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/116801 WO2021057714A1 (zh) 2019-09-26 2020-09-22 热激活排压阀和压力容器

Country Status (2)

Country Link
CN (1) CN112555477B (zh)
WO (1) WO2021057714A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114526344A (zh) * 2022-01-20 2022-05-24 良工阀门集团有限公司 一种防锈耐用型闸阀

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1697945A (zh) * 2003-03-03 2005-11-16 株式会社富士金 安全阀
CN101631978A (zh) * 2007-02-22 2010-01-20 株式会社富士金 安全阀
CN101743422A (zh) * 2007-07-16 2010-06-16 米其林技术公司 高压流体安全阀
CN205618762U (zh) * 2016-02-28 2016-10-05 陈樵 一种机械式温控防火阀
DE102016106328A1 (de) * 2016-04-06 2017-10-12 Mesa Parts GmbH Vorrichtung zum temperaturabhängigen Abbau des Drucks eines in einem Drucktank gelagerten Mediums
CN109282062A (zh) * 2017-07-21 2019-01-29 凯迈（洛阳）气源有限公司 温度压力安全阀
CN209278580U (zh) * 2018-12-07 2019-08-20 乔民 一种燃气高温自动切断阀

Family Cites Families (7)

* 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, Magliaso, Lugano Temperaturempfindliche Absperrarmatur
US6820633B2 (en) * 2002-11-12 2004-11-23 Chih-Hung Liu Thermally-sensitive safety device for gas tubing
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
CN204083410U (zh) * 2014-10-15 2015-01-07 常景泓 多功能防火燃气安全阀
CN106949264B (zh) * 2016-01-06 2019-12-13 中石化石油工程技术服务有限公司 一种井下止回阀
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1697945A (zh) * 2003-03-03 2005-11-16 株式会社富士金 安全阀
CN101631978A (zh) * 2007-02-22 2010-01-20 株式会社富士金 安全阀
CN101743422A (zh) * 2007-07-16 2010-06-16 米其林技术公司 高压流体安全阀
CN205618762U (zh) * 2016-02-28 2016-10-05 陈樵 一种机械式温控防火阀
DE102016106328A1 (de) * 2016-04-06 2017-10-12 Mesa Parts GmbH Vorrichtung zum temperaturabhängigen Abbau des Drucks eines in einem Drucktank gelagerten Mediums
CN109282062A (zh) * 2017-07-21 2019-01-29 凯迈（洛阳）气源有限公司 温度压力安全阀
CN209278580U (zh) * 2018-12-07 2019-08-20 乔民 一种燃气高温自动切断阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114526344A (zh) * 2022-01-20 2022-05-24 良工阀门集团有限公司 一种防锈耐用型闸阀

Also Published As

Publication number Publication date
CN112555477A (zh) 2021-03-26
CN112555477B (zh) 2022-04-22

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
US20180219200A1 (en) Pressure equalising device
WO2021057714A1 (zh) 热激活排压阀和压力容器
WO2015056696A1 (ja) 安全弁
WO1993023693A1 (en) Pressure/temperature-activated pressure relief valve
EP3060832B1 (en) Systems and methods for cascading burst discs
CN211371398U (zh) 一种用于高压氢气集成瓶阀的泄放装置
US20230291067A1 (en) Pressure equalization device, method for pressure equalization and housing
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
CN113261150A (zh) 用于机动车的电池壳
JP2005282638A (ja) 安全弁
WO2021057716A1 (zh) 热激活排压阀
JP4900714B2 (ja) 可溶栓
CN112901840A (zh) 泄压阀以及配备其的燃料电池的流体供应系统
US11940101B2 (en) Fusible link, gas tank, and method for assembling a fusible link and for installing same in a gas tank
CN210462462U (zh) 一种改性的新型气瓶尾阀
JP2008095731A (ja) 安全弁
CN211738134U (zh) 一种爆破阀
JP2008298128A (ja) 高圧ガス安全装置
WO2023078721A1 (en) Gas venting unit and electronics housing with a gas venting unit
CN115585393A (zh) 一种高度集成瓶口阀
US20170356558A1 (en) Frangible Valve
JP7381011B2 (ja) 安全弁
KR20240111338A (ko) 밸브-배관 조립체
CN117712575A (zh) 具有爆裂区域保护的电池单元壳体

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: 20868017

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: 20868017

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 18/10/2022)

122 Ep: pct application non-entry in european phase

Ref document number: 20868017

Country of ref document: EP

Kind code of ref document: A1