WO2022050805A2 - Fire protection device for hydrogen container - Google Patents

Fire protection device for hydrogen container Download PDF

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Publication number
WO2022050805A2
WO2022050805A2 PCT/KR2021/012090 KR2021012090W WO2022050805A2 WO 2022050805 A2 WO2022050805 A2 WO 2022050805A2 KR 2021012090 W KR2021012090 W KR 2021012090W WO 2022050805 A2 WO2022050805 A2 WO 2022050805A2
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WIPO (PCT)
Prior art keywords
unit
pressure
safety
gas
hydrogen
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PCT/KR2021/012090
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French (fr)
Korean (ko)
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WO2022050805A3 (en
Inventor
공임모
정길성
성기수
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한국자동차연구원
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Publication of WO2022050805A2 publication Critical patent/WO2022050805A2/en
Publication of WO2022050805A3 publication Critical patent/WO2022050805A3/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F17C2270/0139—Fuel stations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells

Definitions

  • the present invention relates to a fire prevention device for a hydrogen container, and more particularly, to a fire prevention device for a hydrogen container capable of preventing a safety accident caused by a fire that discharges high-pressure hydrogen into the atmosphere.
  • a fuel cell oxidizes an active substance such as hydrogen through an electrochemical reaction and converts the chemical energy emitted in the process into electricity. do.
  • Fuel cell is evaluated as a future power generation technology because it not only has high power generation efficiency compared to the existing power generation method, but also emits no pollutants due to power generation. It is applied as a power source for automobiles to solve the problem.
  • the present invention has been devised to improve the above problems, and an object of the present invention is to provide a fire prevention device for a hydrogen container that can prevent a safety accident due to a fire occurring in the process of discharging high-pressure hydrogen to the atmosphere.
  • a fire prevention device for a hydrogen container includes: a storage unit for storing high-pressure gas; a discharge unit for discharging the hydrogen stored in the storage unit; and a safety unit connected to the discharge unit to prevent combustion by processing the gas supplied from the discharge unit.
  • the safety unit includes: a safety pressure reducing unit for decompressing the gas discharged through the discharge unit; and a safety rectification unit for stabilizing the gas depressurized in the safety decompression unit.
  • the safety pressure reducing unit includes a first pressure reducing unit for controlling the gas pressure; and a second pressure reducing unit for dispersing the gas.
  • the gas may pass through one of the first pressure reducing unit and the second pressure reducing unit and then passing through the other.
  • the first pressure reducing unit includes: a first pressure reducing processing unit for relieving the pressure of the supplied gas; and a first pressure-reducing heat dissipation unit formed in the first pressure-reducing processing unit and emitting heat.
  • the safety pressure reducing unit may further include a third pressure reducing unit providing a combustion preventing material to the second pressure reducing unit.
  • the safety rectification unit includes: a rectification processing unit for rectifying the gas that has passed through the safety decompression unit; and a rectifying heat dissipating unit formed in the rectifying processing unit to emit heat.
  • the fire prevention device for a hydrogen container according to the present invention can prevent combustion and fire by treating the high-pressure gas before the safety part to which the discharge part is selectively connected is discharged to the atmosphere.
  • FIG. 1 is a view schematically showing a fire prevention device for a hydrogen container according to an embodiment of the present invention.
  • FIG. 2 is a view schematically showing a safety unit according to an embodiment of the present invention.
  • FIG 3 is a view schematically showing a safety pressure reducing unit according to an embodiment of the present invention.
  • FIG. 4 is a view schematically showing a safety pressure reducing unit according to another embodiment of the present invention.
  • FIG. 5 is a view schematically showing a safety rectifier according to an embodiment of the present invention.
  • the fire protection device 1 for a hydrogen container according to an embodiment of the present invention includes a storage unit 10 , a discharge unit 20 , and a safety unit 30 .
  • the storage unit 10 forms a space in which the high-pressure gas is stored.
  • the storage unit 10 may be a hydrogen tank that can be filled with high-pressure hydrogen, and the storage unit 10 may be used in a large-capacity charging station or industrial facility.
  • the storage unit 10 filled with a small amount of high-pressure hydrogen may be applied to a vehicle.
  • the discharge unit 20 discharges the hydrogen stored in the storage unit 10 .
  • the discharge unit 20 may include a discharge pipe unit 21 communicating with the storage unit 10 and a discharge valve unit 22 for opening and closing the discharge pipe unit 21 .
  • the discharge valve unit 22 may automatically open and close the discharge pipe unit 21 by receiving a detection signal by a separate detection sensor that detects the state of the storage unit 10 .
  • the safety unit 30 is connected to the discharge unit 20 and processes the gas supplied from the discharge unit 20 to prevent combustion.
  • the safety unit 30 is detachable from the discharge unit 20 . That is, when the storage unit 10 is a large-capacity charging station, the safety unit 30 may be selectively connected to the discharge unit 20 as needed. When the other storage unit 10 is installed in the vehicle, the safety unit 30 may be selectively mounted on the vehicle body and connected to the discharge unit 20 as needed.
  • the safety unit 30 according to an embodiment of the present invention includes a safety pressure reducing unit 40 and a safety rectifying unit 50 .
  • the safety decompression unit 40 depressurizes the gas discharged through the discharge unit 20 .
  • the gas discharged from the discharge unit 20 may be decompressed through one or more steps.
  • the safety rectifying unit 50 stabilizes the decompressed gas while passing through the safety decompression unit 40 .
  • the safety rectification unit 50 may stabilize the hydrogen supplied through the safety pressure reduction unit 40 and discharge it to the atmosphere.
  • the safety rectification unit 50 may suppress a vortex of hydrogen and induce a uniform flow. Due to this, even if combustion occurs due to the discharged gas, it is possible to prevent backfire.
  • the safety unit 30 may be modularized, and the safety pressure reducing unit 40 and the safety rectifying unit 50 may be installed in the safety module unit 60 .
  • the safety module unit 60 may be connected to or separated from the discharge unit 20 as necessary.
  • FIG. 3 is a diagram schematically showing a safety pressure reducing unit according to an embodiment of the present invention
  • FIG. 4 is a diagram schematically showing a safety pressure reducing unit according to another embodiment of the present invention.
  • the safety pressure reducing unit 40 according to an embodiment of the present invention includes a first pressure reducing unit 41 and a second pressure reducing unit 42 .
  • the first pressure reducing unit 41 controls the gas pressure.
  • a regulator or the like may be applied as the first pressure reducing unit 41 , and the pressure of supplied high-pressure hydrogen may be reduced.
  • various components capable of depressurizing the supplied gas may be applied.
  • the second pressure reducing unit 42 disperses the gas.
  • the second pressure reducing unit 42 includes a porous capillary tube, and by dispersing the supplied gas into multiple branches, it is possible to lower the temperature of the gas itself and relieve the pressure.
  • the gas discharged through the discharge unit 20 passes through one of the first pressure reducing unit 41 and the second pressure reducing unit 42 and then through the other. That is, the gas discharged through the discharge unit 20 may be dispersed while passing through the second pressure reducing unit 42 in a state in which the pressure is lowered while passing through the first pressure reducing unit 41 (refer to FIG. 3 ). In addition, after the gas discharged through the discharge unit 20 is dispersed while passing through the second pressure reducing unit 42 , the pressure may be lowered while passing through the first pressure reducing unit 41 (see FIG. 4 ).
  • the first pressure reducing unit 41 includes a first pressure reducing processing unit 411 and a first pressure reducing heat dissipation unit 412 .
  • the first pressure reduction processing unit 411 relieves the pressure of the supplied gas.
  • the first pressure reduction processing unit 411 may be directly connected to the discharge unit 20 or connected to the second pressure reduction unit 42 to receive hydrogen.
  • a component capable of lowering the pressure of the supplied high-pressure hydrogen may be applied to the first pressure reduction processing unit 411 .
  • the first pressure-reducing heat dissipation unit 412 is formed in the first pressure-reducing processing unit 411 and radiates heat.
  • the outer case of the first pressure reduction processing unit 411 may include a thermally conductive material, and a plurality of first pressure reduction heat dissipation units 412 may be formed in the outer case of the first pressure reduction processing unit 411 .
  • the first pressure-reducing heat dissipating unit 412 may have a heat dissipation fin shape and may be exposed to the atmosphere to discharge heat from the first pressure-reduced heat dissipation unit 411 .
  • the safety pressure reducing unit 40 may further include a third pressure reducing unit 43 .
  • the third pressure reducing unit 43 provides a combustion preventing material to the second pressure reducing unit 42 .
  • the combustion prevention material various materials that suppress combustion by mixing with gas such as water may be used.
  • the second pressure reduction unit 42 may include a second pressure reduction processing unit 421 and a second pressure reduction heat dissipation unit 422 .
  • the second pressure reduction processing unit 421 may be directly connected to the discharge unit 20 or may be connected to the first pressure reduction unit 41 to receive hydrogen.
  • the first pressure reducing unit 411 may have a porous capillary shape to disperse the introduced hydrogen into multiple branches, and may disperse hydrogen in various other structures.
  • the second pressure-reducing heat dissipation unit 422 is formed in the second pressure-reducing processing unit 421 and radiates heat. That is, the outer case of the second pressure reduction processing unit 421 may include a thermally conductive material, and a plurality of second pressure reduction heat dissipation units 422 may be formed in the outer case of the second pressure reduction processing unit 421 .
  • the second pressure-reducing heat dissipation unit 422 may have a heat dissipation fin shape and may be exposed to the atmosphere to dissipate heat from the second pressure reduction processing unit 421 .
  • the third pressure reducing unit 43 may be connected to the second pressure reducing processing unit 421 to supply a combustion prevention material. At this time, due to the pressure difference between the second pressure reducing unit 421 and the third pressure reducing unit 43 , the combustion prevention material stored in the third pressure reducing unit 43 can be supplied to the second pressure reducing unit 421 without a separate power source. there is. A separate nozzle may be added so that the combustion prevention material is mixed with hydrogen in the second reduced pressure processing unit 421 . Combustion can be suppressed when the combustion prevention material is mixed with hydrogen and discharged.
  • the stable rectifying unit 50 includes a rectifying processing unit 51 and a rectifying heat dissipating unit 52 .
  • the rectification processing unit 51 rectifies the gas that has passed through the safety decompression unit 40 .
  • the rectification processing unit 51 may stabilize the flow of the supplied gas. Due to this, the reverse flow of the gas discharged through the rectification discharge unit 55 is blocked, thereby preventing backfire when combustion occurs.
  • the rectification heat dissipation unit 52 is formed in the rectification processing unit 51 to emit heat.
  • the outer case of the rectifying unit 51 may include a thermally conductive material, and a plurality of rectifying heat dissipating units 52 may be formed in the outer case of the rectifying unit 51 .
  • the rectifying heat dissipation unit 52 may have a heat dissipation fin shape and may be exposed to the atmosphere to radiate heat from the rectification processing unit 51 .
  • the rectifying heat dissipating unit 52 may have a pipe shape communicating with the rectifying unit 51 to disperse and discharge gas such as water vapor or hydrogen into the atmosphere.
  • the high-pressure hydrogen stored in the storage unit 10 can be discharged into the atmosphere through the discharge unit 20 , and the safety unit 30 is connected to the discharge unit 20 as necessary. That is, when discharging the high-pressure hydrogen stored in the storage unit 10 to the atmosphere, the safety module unit 60 equipped with the safety pressure reducing unit 40 and the safety rectification unit 50 is mounted on the object, and the discharge unit 20 and can connect In this case, the object may be a hydrogen charging station or a vehicle.
  • the high-pressure hydrogen discharged from the discharge unit 20 may be decompressed through the safety pressure reducing unit 40 , then stabilized through the safety rectification unit 50 and discharged into the atmosphere.
  • the safety pressure-reducing unit 40 includes a first pressure-reducing unit 41 and a second pressure-reducing unit 42 , and the high-pressure hydrogen passes through any one of the first pressure-reducing unit 41 and the second pressure-reducing unit 42 . After passing through the next one, it is moved to the safety rectification unit 50 . At this time, the first pressure reducing unit 41 lowers the pressure of hydrogen, and the second pressure reducing unit 42 disperses the hydrogen.
  • the third pressure reducing unit 43 is connected to the second pressure reducing unit 42 to prevent combustion. This can be supplied. For this reason, in the second pressure reducing unit 42, hydrogen and the combustion preventing material are mixed.
  • the fire prevention device 1 for a hydrogen container can prevent combustion and fire by treating the high-pressure gas before the safety part 30 to which the discharge part 20 is selectively connected is discharged to the atmosphere. there is.

Abstract

The present invention relates to a fire protection device for a hydrogen container, the fire protection device comprising: a storage part in which high-pressure gas is stored; a discharge part through which hydrogen stored in the storage part is discharged; and a safety part which is connected to the discharge part and processes gas supplied from the discharge part so as to prevent combustion from occurring. Therefore, a fire caused by hydrogen discharged into the atmosphere can be prevented.

Description

수소용기용 화재방지장치Fire prevention device for hydrogen container
본 발명은 수소용기용 화재방지장치에 관한 것으로서, 보다 상세하게는 고압수소를 대기중으로 배출하는 화재에 의한 안전사고를 방지할 수 있는 수소용기용 화재방지장치에 관한 것이다.The present invention relates to a fire prevention device for a hydrogen container, and more particularly, to a fire prevention device for a hydrogen container capable of preventing a safety accident caused by a fire that discharges high-pressure hydrogen into the atmosphere.
일반적으로 연료전지는 수소 등의 활성을 갖는 물질 등을 전기화학 반응으로 산화시켜 그 과정에서 방출되는 화학에너지를 전기로 변환시키는 것으로, 주로 천연가스에서 쉽게 생산해 낼 수 있는 수소와 공중의 산소가 사용된다.In general, a fuel cell oxidizes an active substance such as hydrogen through an electrochemical reaction and converts the chemical energy emitted in the process into electricity. do.
연료전지는 기존의 발전방식과 비교할 때 발전 효율이 높을 뿐만 아니라 발전에 따른 공해 물질의 배출이 전혀 없어서 미래의 발전 기술로 평가받고 있으며 에너지 절약과 환경 공해 문제 그리고 최근에 부각되고 있는 지구 온난화 문제 등을 해결하기 위한 자동차의 동력원으로 적용되고 있다.Fuel cell is evaluated as a future power generation technology because it not only has high power generation efficiency compared to the existing power generation method, but also emits no pollutants due to power generation. It is applied as a power source for automobiles to solve the problem.
한편, 종래에는 고압수소가 수소탱크에 충진되는 과정에서 고압 수소 일부가 대기중으로 배출되는데, 고압수소가 배출되면서 연소가 발생하여 화재를 유발하는 문제점이 있다. 따라서, 이를 개선할 필요성이 요청된다.Meanwhile, in the related art, some of the high-pressure hydrogen is discharged into the atmosphere while the high-pressure hydrogen is filled in the hydrogen tank. Therefore, there is a need to improve it.
본 발명의 배경기술은 대한민국 등록특허공보 제10-1048118호(2011.07.04. 등록, 발명의 명칭 : 연료전지 하이브리드 차량의 리젠 과부하 제어장치 및 방법)에 게시되어 있다.Background art of the present invention is disclosed in Korean Patent Publication No. 10-1048118 (registered on Jul. 4, 2011, title of invention: Regen overload control apparatus and method for fuel cell hybrid vehicle).
본 발명은 상기와 같은 문제점들을 개선하기 위해 안출된 것으로서, 고압수소를 대기중으로 배출하는 과정에서 발생하는 화재에 의한 안전사고를 방지할 수 있는 수소용기용 화재방지장치를 제공하는데 그 목적이 있다.The present invention has been devised to improve the above problems, and an object of the present invention is to provide a fire prevention device for a hydrogen container that can prevent a safety accident due to a fire occurring in the process of discharging high-pressure hydrogen to the atmosphere.
본 발명에 따른 수소용기용 화재방지장치는: 고압의 가스가 저장되는 저장부; 상기 저장부에 저장된 수소를 배출하는 배출부; 및 상기 배출부와 연결되고, 상기 배출부에서 공급되는 가스를 처리하여 연소발생을 방지하는 안전부;를 포함하는 것을 특징으로 한다.A fire prevention device for a hydrogen container according to the present invention includes: a storage unit for storing high-pressure gas; a discharge unit for discharging the hydrogen stored in the storage unit; and a safety unit connected to the discharge unit to prevent combustion by processing the gas supplied from the discharge unit.
상기 안전부는 상기 배출부를 통해 배출되는 가스를 감압하는 안전감압부; 및 상기 안전감압부에서 감압된 가스를 안정화시키는 안전정류부;를 포함하는 것을 특징으로 한다.The safety unit includes: a safety pressure reducing unit for decompressing the gas discharged through the discharge unit; and a safety rectification unit for stabilizing the gas depressurized in the safety decompression unit.
상기 안전감압부는 가스 압력을 제어하는 제1감압부; 및 가스를 분산시키는 제2감압부;를 포함하는 것을 특징으로 한다.The safety pressure reducing unit includes a first pressure reducing unit for controlling the gas pressure; and a second pressure reducing unit for dispersing the gas.
가스는 상기 제1감압부와 상기 제2감압부 중 어느 하나를 통과한 후 다른 하나를 통과하는 것을 특징으로 한다.The gas may pass through one of the first pressure reducing unit and the second pressure reducing unit and then passing through the other.
상기 제1감압부는 공급되는 가스의 압력을 완화시키는 제1감압처리부; 및 상기 제1감압처리부에 형성되고 열을 방출하는 제1감압방열부;를 포함하는 것을 특징으로 한다.The first pressure reducing unit includes: a first pressure reducing processing unit for relieving the pressure of the supplied gas; and a first pressure-reducing heat dissipation unit formed in the first pressure-reducing processing unit and emitting heat.
상기 안전감압부는 상기 제2감압부에 연소방지물질을 제공하는 제3감압부;를 더 포함하는 것을 특징으로 한다.The safety pressure reducing unit may further include a third pressure reducing unit providing a combustion preventing material to the second pressure reducing unit.
상기 안전정류부는 상기 안전감압부를 통과한 가스를 정류하는 정류처리부; 및 상기 정류처리부에 형성되어 열을 방출하는 정류방열부;를 포함하는 것을 특징으로 한다.The safety rectification unit includes: a rectification processing unit for rectifying the gas that has passed through the safety decompression unit; and a rectifying heat dissipating unit formed in the rectifying processing unit to emit heat.
본 발명에 따른 수소용기용 화재방지장치는 배출부가 선택적으로 연결되는 안전부가 대기중으로 배출되기전 고압가스를 처리하여 연소 및 화재를 방지할 수 있다.The fire prevention device for a hydrogen container according to the present invention can prevent combustion and fire by treating the high-pressure gas before the safety part to which the discharge part is selectively connected is discharged to the atmosphere.
도 1은 본 발명의 일 실시예에 따른 수소용기용 화재방지장치를 개략적으로 나타내는 도면이다.1 is a view schematically showing a fire prevention device for a hydrogen container according to an embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따른 안전부를 개략적으로 나타내는 도면이다.2 is a view schematically showing a safety unit according to an embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 안전감압부를 개략적으로 나타내는 도면이다.3 is a view schematically showing a safety pressure reducing unit according to an embodiment of the present invention.
도 4는 본 발명의 다른 실시예에 따른 안전감압부를 개략적으로 나타내는 도면이다.4 is a view schematically showing a safety pressure reducing unit according to another embodiment of the present invention.
도 5는 본 발명의 일 실시예에 따른 안전정류부를 개략적으로 나타내는 도면이다.5 is a view schematically showing a safety rectifier according to an embodiment of the present invention.
이하, 첨부된 도면들을 참조하여 본 발명에 따른 수소용기용 화재방지장치의 실시예를 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, an embodiment of a fire prevention device for a hydrogen container according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, definitions of these terms should be made based on the content throughout this specification.
도 1은 본 발명의 일 실시예에 따른 수소용기용 화재방지장치를 개략적으로 나타내는 도면이다. 도 1을 참조하면, 본 발명의 일 실시예에 따른 수소용기용 화재방지장치(1)는 저장부(10)와, 배출부(20)와, 안전부(30)를 포함한다.1 is a view schematically showing a fire prevention device for a hydrogen container according to an embodiment of the present invention. Referring to FIG. 1 , the fire protection device 1 for a hydrogen container according to an embodiment of the present invention includes a storage unit 10 , a discharge unit 20 , and a safety unit 30 .
저장부(10)는 고압의 가스가 저장되는 공간을 형성한다. 일예로, 저장부(10)는 고압수소가 충진 가능한 수소탱크가 될 수 있으며, 저장부(10)는 대용량 충전소 또는 산업설비에서 사용될 수 있다. 그 외, 소량의 고압 수소가 충진되는 저장부(10)는 차량에 적용될 수 있다.The storage unit 10 forms a space in which the high-pressure gas is stored. For example, the storage unit 10 may be a hydrogen tank that can be filled with high-pressure hydrogen, and the storage unit 10 may be used in a large-capacity charging station or industrial facility. In addition, the storage unit 10 filled with a small amount of high-pressure hydrogen may be applied to a vehicle.
배출부(20)는 저장부(10)에 저장된 수소를 배출한다. 일예로, 배출부(20)는 저장부(10)와 연통되는 배출관부(21)와, 배출관부(21)를 개폐하는 배출밸브부(22)를 포함할 수 있다. 배출밸브부(22)는 저장부(10)의 상태를 감지하는 별도의 감지센서에 의한 감지신호를 수신하여 자동으로 배출관부(21)를 개폐할 수 있다.The discharge unit 20 discharges the hydrogen stored in the storage unit 10 . For example, the discharge unit 20 may include a discharge pipe unit 21 communicating with the storage unit 10 and a discharge valve unit 22 for opening and closing the discharge pipe unit 21 . The discharge valve unit 22 may automatically open and close the discharge pipe unit 21 by receiving a detection signal by a separate detection sensor that detects the state of the storage unit 10 .
안전부(30)는 배출부(20)와 연결되고, 배출부(20)에서 공급되는 가스를 처리하여 연소발생을 방지한다. 일예로, 안전부(30)는 배출부(20)에 탈부착 가능하다. 즉, 저장부(10)가 대용량 충전소인 경우, 안전부(30)는 필요에 따라 선택적으로 배출부(20)에 연결될 수 있다. 그 외 저장부(10)가 차량에 설치되는 경우, 안전부(30)는 필요에 따라 선택적으로 차체에 장착되어 배출부(20)와 연결될 수 있다.The safety unit 30 is connected to the discharge unit 20 and processes the gas supplied from the discharge unit 20 to prevent combustion. For example, the safety unit 30 is detachable from the discharge unit 20 . That is, when the storage unit 10 is a large-capacity charging station, the safety unit 30 may be selectively connected to the discharge unit 20 as needed. When the other storage unit 10 is installed in the vehicle, the safety unit 30 may be selectively mounted on the vehicle body and connected to the discharge unit 20 as needed.
도 2는 본 발명의 일 실시예에 따른 안전부를 개략적으로 나타내는 도면이다. 도 2를 참조하면, 본 발명의 일 실시예에 따른 안전부(30)는 안전감압부(40)와 안전정류부(50)를 포함한다.2 is a view schematically showing a safety unit according to an embodiment of the present invention. Referring to FIG. 2 , the safety unit 30 according to an embodiment of the present invention includes a safety pressure reducing unit 40 and a safety rectifying unit 50 .
안전감압부(40)는 배출부(20)를 통해 배출되는 가스를 감압한다. 일예로, 안전감압부(40)는 배출부(20)에서 배출되는 가스가 하나 이상의 단계를 거쳐 감압될 수 있다.The safety decompression unit 40 depressurizes the gas discharged through the discharge unit 20 . For example, in the safety pressure reducing unit 40 , the gas discharged from the discharge unit 20 may be decompressed through one or more steps.
안전정류부(50)는 안전감압부(40)를 통과하면서 감압된 가스를 안정화시킨다. 일예로, 안전정류부(50)는 안전감압부(40)를 통해 공급된 수소를 안정화시켜서 대기중으로 배출할 수 있다. 안전정류부(50)는 수소의 와류를 억제하고 균일한 유동을 유도할 수 있다. 이로 인해, 배출되는 가스로 인해 연소가 발생하더라도 역화를 방지할 수 있다.The safety rectifying unit 50 stabilizes the decompressed gas while passing through the safety decompression unit 40 . For example, the safety rectification unit 50 may stabilize the hydrogen supplied through the safety pressure reduction unit 40 and discharge it to the atmosphere. The safety rectification unit 50 may suppress a vortex of hydrogen and induce a uniform flow. Due to this, even if combustion occurs due to the discharged gas, it is possible to prevent backfire.
안전부(30)는 모듈화 가능하며, 안전모듈부(60)에 안전감압부(40)와 안전정류부(50)가 설치될 수 있다. 안전모듈부(60)는 필요에 따라 배출부(20)와 연결되거나 분리될 수 있다.The safety unit 30 may be modularized, and the safety pressure reducing unit 40 and the safety rectifying unit 50 may be installed in the safety module unit 60 . The safety module unit 60 may be connected to or separated from the discharge unit 20 as necessary.
도 3은 본 발명의 일 실시예에 따른 안전감압부를 개략적으로 나타내는 도면이고, 도 4는 본 발명의 다른 실시예에 따른 안전감압부를 개략적으로 나타내는 도면이다. 도 3과 도 4를 참조하면, 본 발명의 일 실시예에 따른 안전감압부(40)는 제1감압부(41)와 제2감압부(42)를 포함한다.3 is a diagram schematically showing a safety pressure reducing unit according to an embodiment of the present invention, and FIG. 4 is a diagram schematically showing a safety pressure reducing unit according to another embodiment of the present invention. 3 and 4 , the safety pressure reducing unit 40 according to an embodiment of the present invention includes a first pressure reducing unit 41 and a second pressure reducing unit 42 .
제1감압부(41)는 가스 압력을 제어한다. 일예로, 제1감압부(41)로는 레귤레이터 등이 적용될 수 있고, 공급되는 고압수소의 압력을 낮출 수 있다. 제1감압부(41)는 공급되는 가스를 감압시킬 수 있는 다양한 부품이 적용될 수 있다.The first pressure reducing unit 41 controls the gas pressure. For example, a regulator or the like may be applied as the first pressure reducing unit 41 , and the pressure of supplied high-pressure hydrogen may be reduced. As the first pressure reducing unit 41, various components capable of depressurizing the supplied gas may be applied.
제2감압부(42)는 가스를 분산시킨다. 일예로, 제2감압부(42)는 다공성 모세관을 포함하고, 공급되는 가스를 다갈래로 분산시켜 줌으로써, 가스 자체 온도를 낮추고 압력을 완화시킬 수 있다.The second pressure reducing unit 42 disperses the gas. For example, the second pressure reducing unit 42 includes a porous capillary tube, and by dispersing the supplied gas into multiple branches, it is possible to lower the temperature of the gas itself and relieve the pressure.
배출부(20)를 통해 배출되는 가스는 제1감압부(41)와 제2감압부(42) 중 어느 하나를 통과한 후 다른 하나를 통과한다. 즉, 배출부(20)를 통해 배출되는 가스가 제1감압부(41)를 통과하면서 압력이 낮아진 상태로 제2감압부(42)를 통과하면서 분산될 수 있다(도 3 참조). 그 외 배출부(20)를 통해 배출되는 가스가 제2감압부(42)를 통과하면서 분산된 후 제1감압부(41)를 통과하면서 압력이 낮아질 수 있다(도 4 참조).The gas discharged through the discharge unit 20 passes through one of the first pressure reducing unit 41 and the second pressure reducing unit 42 and then through the other. That is, the gas discharged through the discharge unit 20 may be dispersed while passing through the second pressure reducing unit 42 in a state in which the pressure is lowered while passing through the first pressure reducing unit 41 (refer to FIG. 3 ). In addition, after the gas discharged through the discharge unit 20 is dispersed while passing through the second pressure reducing unit 42 , the pressure may be lowered while passing through the first pressure reducing unit 41 (see FIG. 4 ).
본 발명의 일 실시예에 따른 제1감압부(41)는 제1감압처리부(411)와 제1감압방열부(412)를 포함한다.The first pressure reducing unit 41 according to an embodiment of the present invention includes a first pressure reducing processing unit 411 and a first pressure reducing heat dissipation unit 412 .
제1감압처리부(411)는 공급되는 가스의 압력을 완화시킨다. 일예로, 제1감압처리부(411)는 배출부(20)와 직접 연결되거나 제2감압부(42)와 연결되어 수소를 공급받을 수 있다. 제1감압처리부(411)는 공급되는 고압수소의 압력을 낮출 수 있는 부품이 적용될 수 있다.The first pressure reduction processing unit 411 relieves the pressure of the supplied gas. For example, the first pressure reduction processing unit 411 may be directly connected to the discharge unit 20 or connected to the second pressure reduction unit 42 to receive hydrogen. A component capable of lowering the pressure of the supplied high-pressure hydrogen may be applied to the first pressure reduction processing unit 411 .
제1감압방열부(412)는 제1감압처리부(411)에 형성되고 열을 방출한다. 일예로, 제1감압처리부(411)의 외부케이스는 열전도성 재질을 포함하여 이루어지고, 제1감압방열부(412)는 제1감압처리부(411)의 외부케이스에 복수개 형성될 수 있다. 제1감압방열부(412)는 방열핀 형상을 하고 대기중에 노출되어 제1감압처리부(411)의 열을 방출할 수 있다.The first pressure-reducing heat dissipation unit 412 is formed in the first pressure-reducing processing unit 411 and radiates heat. For example, the outer case of the first pressure reduction processing unit 411 may include a thermally conductive material, and a plurality of first pressure reduction heat dissipation units 412 may be formed in the outer case of the first pressure reduction processing unit 411 . The first pressure-reducing heat dissipating unit 412 may have a heat dissipation fin shape and may be exposed to the atmosphere to discharge heat from the first pressure-reduced heat dissipation unit 411 .
본 발명의 일 실시예에 따른 안전감압부(40)는 제3감압부(43)를 더 포함할 수 있다. 제3감압부(43)는 제2감압부(42)에 연소방지물질을 제공한다. 연소방지물질로는 물과 같이 가스와 혼합되어 연소를 억제하는 다양한 재질이 사용될 수 있다.The safety pressure reducing unit 40 according to an embodiment of the present invention may further include a third pressure reducing unit 43 . The third pressure reducing unit 43 provides a combustion preventing material to the second pressure reducing unit 42 . As the combustion prevention material, various materials that suppress combustion by mixing with gas such as water may be used.
일예로, 제2감압부(42)는 제2감압처리부(421)와 제2감압방열부(422)를 포함할 수 있다. 제2감압처리부(421)는 배출부(20)와 직접 연결되거나 제1감압부(41)와 연결되어 수소를 공급받을 수 있다. 제1감압처리부(411)는 다공성 모세관 형상을 하여 유입된 수소를 다갈래로 분산시킬 수 있으며, 그 외 다양한 구조로 수소를 분산시킬 수 있다. For example, the second pressure reduction unit 42 may include a second pressure reduction processing unit 421 and a second pressure reduction heat dissipation unit 422 . The second pressure reduction processing unit 421 may be directly connected to the discharge unit 20 or may be connected to the first pressure reduction unit 41 to receive hydrogen. The first pressure reducing unit 411 may have a porous capillary shape to disperse the introduced hydrogen into multiple branches, and may disperse hydrogen in various other structures.
제2감압방열부(422)는 제2감압처리부(421)에 형성되고 열을 방출한다. 즉, 제2감압처리부(421)의 외부케이스는 열전도성 재질을 포함하여 이루어지고, 제2감압방열부(422)는 제2감압처리부(421)의 외부케이스에 복수개 형성될 수 있다. 제2감압방열부(422)는 방열핀 형상을 하고 대기중에 노출되어 제2감압처리부(421)의 열을 방출할 수 있다.The second pressure-reducing heat dissipation unit 422 is formed in the second pressure-reducing processing unit 421 and radiates heat. That is, the outer case of the second pressure reduction processing unit 421 may include a thermally conductive material, and a plurality of second pressure reduction heat dissipation units 422 may be formed in the outer case of the second pressure reduction processing unit 421 . The second pressure-reducing heat dissipation unit 422 may have a heat dissipation fin shape and may be exposed to the atmosphere to dissipate heat from the second pressure reduction processing unit 421 .
제3감압부(43)는 제2감압처리부(421)와 연결되어 연소방지물질을 공급할 수 있다. 이때, 제2감압처리부(421)와 제3감압부(43)의 압력차이로 인해 별도의 동력원 없이 제3감압부(43)에 저장된 연소방지물질이 제2감압처리부(421)에 공급될 수 있다. 연소방지물질이 제2감압처리부(421)에서 수소와 혼합되도록 별도의 노즐이 추가될 수 있다. 연소방지물질이 수소와 혼합되어 배출되면 연소를 억제할 수 있다.The third pressure reducing unit 43 may be connected to the second pressure reducing processing unit 421 to supply a combustion prevention material. At this time, due to the pressure difference between the second pressure reducing unit 421 and the third pressure reducing unit 43 , the combustion prevention material stored in the third pressure reducing unit 43 can be supplied to the second pressure reducing unit 421 without a separate power source. there is. A separate nozzle may be added so that the combustion prevention material is mixed with hydrogen in the second reduced pressure processing unit 421 . Combustion can be suppressed when the combustion prevention material is mixed with hydrogen and discharged.
도 5는 본 발명의 일 실시예에 따른 안전정류부를 개략적으로 나타내는 도면이다. 도 5를 참조하면, 본 발명의 일 실시예에 따른 안정정류부(50)는 정류처리부(51)와 정류방열부(52)를 포함한다.5 is a view schematically showing a safety rectifier according to an embodiment of the present invention. Referring to FIG. 5 , the stable rectifying unit 50 according to an embodiment of the present invention includes a rectifying processing unit 51 and a rectifying heat dissipating unit 52 .
정류처리부(51)는 안전감압부(40)를 통과한 가스를 정류한다. 일예로, 정류처리부(51)는 공급되는 가스의 흐름을 안정화시킬 수 있다. 이로 인해 정류배출부(55)를 통해 배출되는 가스의 역류가 차단되어, 연소 발생시 역화를 방지할 수 있다.The rectification processing unit 51 rectifies the gas that has passed through the safety decompression unit 40 . For example, the rectification processing unit 51 may stabilize the flow of the supplied gas. Due to this, the reverse flow of the gas discharged through the rectification discharge unit 55 is blocked, thereby preventing backfire when combustion occurs.
정류방열부(52)는 정류처리부(51)에 형성되어 열을 방출한다. 일예로, 정류처리부(51)의 외부케이스는 열전도성 재질을 포함하여 이루어지고, 정류방열부(52)는 정류처리부(51)의 외부케이스에 복수개 형성될 수 있다. The rectification heat dissipation unit 52 is formed in the rectification processing unit 51 to emit heat. For example, the outer case of the rectifying unit 51 may include a thermally conductive material, and a plurality of rectifying heat dissipating units 52 may be formed in the outer case of the rectifying unit 51 .
정류방열부(52)는 방열핀 형상을 하고 대기 중에 노출되어 정류처리부(51)의 열을 방출할 수 있다. 정류방열부(52)는 정류처리부(51)와 연통되는 파이프 형상을 하여 대기 중으로 수증기 또는 수소와 같은 가스를 분산 배출할 수 있다.The rectifying heat dissipation unit 52 may have a heat dissipation fin shape and may be exposed to the atmosphere to radiate heat from the rectification processing unit 51 . The rectifying heat dissipating unit 52 may have a pipe shape communicating with the rectifying unit 51 to disperse and discharge gas such as water vapor or hydrogen into the atmosphere.
상기와 같은 구조를 갖는 본 발명의 일 실시예에 따른 수소용기용 화재방지장치의 작동을 설명하면 다음과 같다.The operation of the fire protection device for a hydrogen container according to an embodiment of the present invention having the above structure will be described as follows.
저장부(10)에 저장된 고압수소가 배출부(20)를 통해 대기중으로 배출 가능하고, 필요에 따라 안전부(30)를 배출부(20)에 연결한다. 즉, 저장부(10)에 저장된 고압수소를 대기중으로 배출할 경우, 안전감압부(40)와 안전정류부(50)가 장착된 안전모듈부(60)를 대상물에 장착하여 배출부(20)와 연결할 수 있다. 이때, 대상물로는 수소충전소가 되거나 차량이 될 수 있다.The high-pressure hydrogen stored in the storage unit 10 can be discharged into the atmosphere through the discharge unit 20 , and the safety unit 30 is connected to the discharge unit 20 as necessary. That is, when discharging the high-pressure hydrogen stored in the storage unit 10 to the atmosphere, the safety module unit 60 equipped with the safety pressure reducing unit 40 and the safety rectification unit 50 is mounted on the object, and the discharge unit 20 and can connect In this case, the object may be a hydrogen charging station or a vehicle.
상기한 상태에서 배출부(20)에서 배출되는 고압수소는 안전감압부(40)를 통해 감압된 다음, 안전정류부(50)를 통해 안정화되어 대기중으로 배출될 수 있다.In the above state, the high-pressure hydrogen discharged from the discharge unit 20 may be decompressed through the safety pressure reducing unit 40 , then stabilized through the safety rectification unit 50 and discharged into the atmosphere.
안전감압부(40)는 제1감압부(41)와 제2감압부(42)를 포함하고, 고압수소는 제1감압부(41)와 제2감압부(42) 중 어느 하나를 통과한 다음 다른 하나를 통과한 후 안전정류부(50)로 이동된다. 이때, 제1감압부(41)는 수소의 압력을 낮추고, 제2감압부(42)는 수소를 분산시키는데, 제2감압부(42)에는 제3감압부(43)가 연결되어 연소방지물질이 공급될 수 있다. 이로 인해 제2감압부(42)에서는 수소와 연소방지물질이 혼합된다.The safety pressure-reducing unit 40 includes a first pressure-reducing unit 41 and a second pressure-reducing unit 42 , and the high-pressure hydrogen passes through any one of the first pressure-reducing unit 41 and the second pressure-reducing unit 42 . After passing through the next one, it is moved to the safety rectification unit 50 . At this time, the first pressure reducing unit 41 lowers the pressure of hydrogen, and the second pressure reducing unit 42 disperses the hydrogen. The third pressure reducing unit 43 is connected to the second pressure reducing unit 42 to prevent combustion. This can be supplied. For this reason, in the second pressure reducing unit 42, hydrogen and the combustion preventing material are mixed.
본 발명의 일 실시예에 따른 수소용기용 화재방지장치(1)는 배출부(20)가 선택적으로 연결되는 안전부(30)가 대기중으로 배출되기전 고압가스를 처리하여 연소 및 화재를 방지할 수 있다.The fire prevention device 1 for a hydrogen container according to an embodiment of the present invention can prevent combustion and fire by treating the high-pressure gas before the safety part 30 to which the discharge part 20 is selectively connected is discharged to the atmosphere. there is.
본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.Although the present invention has been described with reference to the embodiment shown in the drawings, this is merely an example, and those skilled in the art to which various modifications and equivalent other embodiments are possible. will understand Accordingly, the true technical protection scope of the present invention should be defined by the following claims.

Claims (7)

  1. 고압의 가스가 저장되는 저장부;a storage unit for storing high-pressure gas;
    상기 저장부에 저장된 수소를 배출하는 배출부; 및a discharge unit for discharging the hydrogen stored in the storage unit; and
    상기 배출부와 연결되고, 상기 배출부에서 공급되는 가스를 처리하여 연소발생을 방지하는 안전부;를 포함하는 것을 특징으로 하는 수소용기용 화재방지장치.A fire prevention device for a hydrogen container, comprising a; connected to the discharge unit, and a safety unit for preventing combustion by processing the gas supplied from the discharge unit.
  2. 제 1항에 있어서, 상기 안전부는The method of claim 1, wherein the safety part
    상기 배출부를 통해 배출되는 가스를 감압하는 안전감압부; 및a safety pressure reducing unit for decompressing the gas discharged through the discharge unit; and
    상기 안전감압부에서 감압된 가스를 안정화시키는 안전정류부;를 포함하는 것을 특징으로 하는 수소용기용 화재방지장치.A fire prevention device for a hydrogen container comprising a;
  3. 제 2항에 있어서, 상기 안전감압부는The method of claim 2, wherein the safety pressure-reducing unit
    가스 압력을 제어하는 제1감압부; 및a first pressure reducing unit for controlling the gas pressure; and
    가스를 분산시키는 제2감압부;를 포함하는 것을 특징으로 하는 수소용기용 화재방지장치.A fire prevention device for a hydrogen container comprising a; a second pressure reducing unit for dispersing the gas.
  4. 제 3항에 있어서, 4. The method of claim 3,
    가스는 상기 제1감압부와 상기 제2감압부 중 어느 하나를 통과한 후 다른 하나를 통과하는 것을 특징으로 하는 수소용기용 화재방지장치.A fire prevention device for a hydrogen container, characterized in that the gas passes through the other after passing through any one of the first pressure reducing unit and the second pressure reducing unit.
  5. 제 3항에 있어서, 상기 제1감압부는The method of claim 3, wherein the first pressure-reducing unit
    공급되는 가스의 압력을 완화시키는 제1감압처리부; 및a first pressure reduction processing unit to relieve the pressure of the supplied gas; and
    상기 제1감압처리부에 형성되고 열을 방출하는 제1감압방열부;를 포함하는 것을 특징으로 하는 수소용기용 화재방지장치.A fire prevention device for a hydrogen container comprising a; a first pressure-reduced heat dissipation unit formed in the first pressure-reducing processing unit and emitting heat.
  6. 제 3항에 있어서, 상기 안전감압부는4. The method of claim 3, wherein the safety pressure-reducing unit
    상기 제2감압부에 연소방지물질을 제공하는 제3감압부;를 더 포함하는 것을 특징으로 하는 수소용기용 화재방지장치. A fire prevention device for a hydrogen container further comprising a; a third pressure reducing unit for providing a combustion prevention material to the second pressure reducing unit.
  7. 제 2항에 있어서, 상기 안전정류부는The method of claim 2, wherein the safety rectifying unit
    상기 안전감압부를 통과한 가스를 정류하는 정류처리부; 및a rectification processing unit for rectifying the gas that has passed through the safety decompression unit; and
    상기 정류처리부에 형성되어 열을 방출하는 정류방열부;를 포함하는 것을 특징으로 하는 수소용기용 화재방지장치.A fire prevention device for a hydrogen container comprising a;
PCT/KR2021/012090 2020-09-07 2021-09-07 Fire protection device for hydrogen container WO2022050805A2 (en)

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KR1020200114015A KR102431614B1 (en) 2020-09-07 2020-09-07 Overheating prevention device for hydrogen container

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