KR100461150B1 - Cooling system for hydrogen storage tank of fuel cell powered vehicle - Google Patents

Cooling system for hydrogen storage tank of fuel cell powered vehicle Download PDF

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KR100461150B1
KR100461150B1 KR10-2002-0006969A KR20020006969A KR100461150B1 KR 100461150 B1 KR100461150 B1 KR 100461150B1 KR 20020006969 A KR20020006969 A KR 20020006969A KR 100461150 B1 KR100461150 B1 KR 100461150B1
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cooling water
hydrogen
storage tank
hydrogen storage
fuel cell
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KR10-2002-0006969A
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Korean (ko)
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KR20030067117A (en
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권순우
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03309—Tanks specially adapted for particular fuels
    • B60K2015/03315—Tanks specially adapted for particular fuels for hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/03414—Arrangements or special measures related to fuel tanks or fuel handling associated with the fuel tank for cooling heated fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/20—Energy converters
    • B60Y2400/202—Fuel cells

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Fuel Cell (AREA)

Abstract

본 발명은 연료전지 차량의 수소저장탱크 냉각시스템에 관한 것으로서, 수소 충전시 수소충전설비로부터 공급되는 냉각수를 차량의 수소저장탱크에 설치된 냉각수 순환파이프를 통해 순환시켜, 순환하는 냉각수와 수소저장탱크 내의 수소 사이에서 열교환이 이루어지도록 하고, 이를 통해 충전시 수소저장탱크 내의 수소 온도 상승을 억제함으로써, 수소가 충전되는 시간을 단축하고, 수소 충전시 안전성을 향상시킬 수 있는 연료전지 차량의 수소저장탱크 냉각시스템을 제공하고자 한 것이다.The present invention relates to a cooling system for a hydrogen storage tank of a fuel cell vehicle, wherein the cooling water supplied from a hydrogen charging facility is circulated through a cooling water circulation pipe installed in a hydrogen storage tank of a vehicle during hydrogen charging, thereby circulating cooling water and a hydrogen storage tank. By allowing heat exchange between hydrogen and suppressing the increase of the hydrogen temperature in the hydrogen storage tank during charging, the hydrogen storage tank cooling of the fuel cell vehicle can shorten the time for charging the hydrogen and improve the safety during the hydrogen charging. It was intended to provide a system.

Description

연료전지 차량의 수소저장탱크 냉각시스템{Cooling system for hydrogen storage tank of fuel cell powered vehicle}Cooling system for hydrogen storage tank of fuel cell powered vehicle

본 발명은 연료전지 차량의 수소저장탱크 냉각시스템에 관한 것으로서, 더욱 상세하게는 수소 충전시 수소충전설비로부터 공급되는 냉각수를 차량의 수소저장탱크에 설치된 냉각수 순환파이프를 통해 순환시켜, 순환하는 냉각수와 수소저장탱크 내의 수소 사이에서 열교환이 이루어지도록 하고, 이를 통해 충전시 수소저장탱크 내의 수소 온도 상승을 억제함으로써, 수소가 충전되는 시간을 단축하고, 수소 충전시 안전성을 향상시킬 수 있는 연료전지 차량의 수소저장탱크 냉각시스템에 관한 것이다.The present invention relates to a hydrogen storage tank cooling system of a fuel cell vehicle. More specifically, the cooling water supplied from a hydrogen charging facility during hydrogen charging is circulated through a cooling water circulation pipe installed in a hydrogen storage tank of a vehicle, and The heat exchange between the hydrogen in the hydrogen storage tank, and by suppressing the increase in the hydrogen temperature in the hydrogen storage tank through the charging, it is possible to shorten the time to charge the hydrogen, it is possible to improve the safety when charging the fuel cell vehicle A hydrogen storage tank cooling system.

일반적으로 연료전지는 연료가 가지고 있는 화학에너지를 연소에 의해 열로 바꾸지 않고 전지 내에서 전기화학적으로 직접 전기에너지로 바꾸는 장치이며, 자동차의 전원, 레이저 전기기구의 전원 등으로 관심있게 연구되는 무공해 발전장치이다.In general, a fuel cell is a device that converts chemical energy contained in a fuel into electric energy directly in a cell without being converted into heat by combustion. to be.

이러한 연료전지에서는 전기를 생산하는 단위전지가 적층되어 있는 연료전지 셀 어셈블리 및 그 주변부품으로 구성된 연료전지스택이 애노드로 연료기체인 수소를 공급받고 캐소드로 산화제인 산소를 공급받아 전기를 생산하게 된다.In such a fuel cell, a fuel cell stack including a fuel cell assembly in which unit cells that generate electricity are stacked and peripheral parts thereof is supplied with hydrogen as a fuel gas as an anode and oxygen as an oxidant as a cathode to generate electricity. .

이와 같이, 연료전지를 구동원으로 하는 차량에서는 상기한 바의 전기생산을위하여, 첨부한 도 3에 도시한 바와 같이, 차량(10)에 미리 저장시킨 수소를 연료전지스택(12)에 공급해야 하는 바, 차량(10)에는 차량 외부의 수소충전설비(20)로부터 공급받은 수소를 저장하기 위한 별도의 수소저장탱크(14)가 구비된다.As described above, in a vehicle using a fuel cell as a driving source, hydrogen, which has been stored in the vehicle 10, must be supplied to the fuel cell stack 12 in order to produce electricity as described above. Bar, vehicle 10 is provided with a separate hydrogen storage tank 14 for storing the hydrogen supplied from the hydrogen charging facility 20 outside the vehicle.

즉, 연료전지의 발전에 필요한 수소는 일단 차량(10)에 구비된 수소저장탱크(14)에 저장된 후 발전이 이루어지는 연료전지스택(12)으로 공급되는 것이다.That is, the hydrogen required for power generation of the fuel cell is stored in the hydrogen storage tank 14 provided in the vehicle 10 and then supplied to the fuel cell stack 12 in which power generation is performed.

따라서, 연료전지스택(12)에서의 계속된 발전을 위해서는 적절한 시기에 수소저장탱크(14)를 충전시켜야 하는 바, 수소충전설비(20)는 수소공급탱크(22) 및 컴프레서(23) 등을 포함하고 있으며, 수소공급탱크(22)로부터 공급되는 수소는 컴프레서(23)에서 압력이 높아진 후 차량(10)의 수소저장탱크(14)로 공급되도록 되어 있다.Therefore, in order to continue generating power in the fuel cell stack 12, the hydrogen storage tank 14 needs to be charged at an appropriate time, and the hydrogen charging facility 20 supplies the hydrogen supply tank 22, the compressor 23, and the like. The hydrogen supplied from the hydrogen supply tank 22 is supplied to the hydrogen storage tank 14 of the vehicle 10 after the pressure is increased in the compressor 23.

그러나, 종래에는 연료전지 차량의 수소저장탱크에 수소를 충전함에 있어서 다음과 같은 문제가 있었다.However, in the past, there have been the following problems in charging hydrogen to a hydrogen storage tank of a fuel cell vehicle.

수소는 충전시 팽창하면서 온도가 상승하는데, 이때 수소가 상승하는 온도는 통상 110℃ 정도이며, 약 8분 경과 후 80 ∼ 90℃ 정도로 떨어지게 된다.The temperature of the hydrogen rises as it expands during charging, and the temperature at which the hydrogen rises is usually about 110 ° C, and drops to about 80 to 90 ° C after about 8 minutes.

이와 같이 온도가 상승하면 초기 충전시에 비해 충전압도 많이 상승하므로, 초기 설정한 충전압만큼 수소의 충전이 힘들고, 결국 1차로 수소를 충전한 후 온도가 안정된 다음 다시 한번 충전을 실시해야 하는 문제점이 생긴다.As the temperature rises, the charging pressure is also increased as compared with the initial charging. Therefore, it is difficult to charge hydrogen at the initial charging pressure, and eventually, after charging the hydrogen first, the temperature is stabilized and then the charging is performed again. Occurs.

또한, 수소의 온도 상승에 따른 안전문제를 고려해야 하므로 빠른 충전이 힘들어진다(충전시 약 10분 이상이 소요).In addition, because of the safety issues due to the temperature rise of hydrogen, fast charging is difficult (about 10 minutes or more during charging).

또한, 통상의 수소저장탱크에는 안전도출밸브(safety relief valve)가 구비되는데, 이 안전도출밸브는 수소저장탱크의 정해진 위치의 온도가 120℃ 정도로 상승하면 대기중으로 수소를 배출하도록 되어 있는 바, 충전시 수소의 온도가 전술한 바와 같이 110℃ 정도로 상승하므로 설계여유 및 안전여유가 적고, 이는 결국 안전성을 저해하는 요인이 되고 있다.In addition, the normal hydrogen storage tank is provided with a safety relief valve (safety relief valve), which is to discharge hydrogen into the atmosphere when the temperature of the predetermined position of the hydrogen storage tank rises to about 120 ℃, Since the temperature of the hydrogen hydrogen rises to about 110 ° C as described above, the design margin and safety margin are small, which in turn is a factor that impairs safety.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명한 것으로서, 수소 충전시 수소충전설비로부터 공급되는 냉각수를 차량의 수소저장탱크에 설치된 냉각수 순환파이프를 통해 순환시켜, 순환하는 냉각수와 수소저장탱크 내의 수소 사이에서 열교환이 이루어지도록 하고, 이를 통해 충전시 수소저장탱크 내의 수소 온도 상승을 억제함으로써, 수소가 충전되는 시간을 단축하고, 수소 충전시 안전성을 향상시킬 수 있는 연료전지 차량의 수소저장탱크 냉각시스템을 제공하는데 그 목적이 있다.Accordingly, the present invention has been invented to solve the above problems, by circulating the cooling water supplied from the hydrogen charging facility during hydrogen charging through the cooling water circulation pipe installed in the hydrogen storage tank of the vehicle, the cooling water and hydrogen storage tank circulating By performing heat exchange between hydrogen in the tank, and thereby suppressing the increase in the hydrogen temperature in the hydrogen storage tank during charging, the hydrogen storage tank of the fuel cell vehicle can shorten the time for charging the hydrogen and improve the safety during the hydrogen charging. The purpose is to provide a cooling system.

도 1은 본 발명에 따른 냉각시스템의 구성 및 냉각수의 이동경로를 보여주는 블럭도1 is a block diagram showing the configuration of the cooling system and the movement path of the cooling water according to the present invention.

도 2는 본 발명에 따른 냉각시스템에서 수소저장탱크의 냉각수 순환파이프를 보여주는 단면도2 is a cross-sectional view showing a cooling water circulation pipe of the hydrogen storage tank in the cooling system according to the present invention.

도 3은 일반적인 수소충전설비 및 연료전지 차량에서 수소의 공급경로를 보여주는 블럭도Figure 3 is a block diagram showing the supply path of hydrogen in a typical hydrogen charging facility and fuel cell vehicle

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 차량 12 : 연료전지스택10 vehicle 12 fuel cell stack

14 : 수소저장탱크 16 : 쉘14: hydrogen storage tank 16: shell

17 : 냉각수 순환파이프 18 : 냉각수 공급포트17: cooling water circulation pipe 18: cooling water supply port

19 : 냉각수 배출포트 20 : 수소충전설비19: cooling water discharge port 20: hydrogen charging equipment

22 : 수소공급탱크 23 : 컴프레서22: hydrogen supply tank 23: compressor

24 : 수소공급도관 25 : 냉각수 공급시스템24: hydrogen supply conduit 25: cooling water supply system

26 : 냉각수 공급탱크 27 : 펌프26: cooling water supply tank 27: pump

28 : 냉각수 공급도관 29 : 냉각수 배출도관28: cooling water supply conduit 29: cooling water discharge conduit

첨부한 도면을 참조하여 본 발명을 설명하면 다음과 같다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

본 발명에 따른 연료전지 차량의 수소저장탱크 냉각시스템은 냉각수가 순환 후 배출되면서 수소저장탱크(14) 내의 수소와 열교환이 이루어질 수 있도록 수소저장탱크(14)의 외곽을 이루는 쉘(16)에 전체적으로 균일하게 삽입 설치되는 냉각수순환파이프(17)와, 냉각수 공급이 가능하고 상기 냉각수 순환파이프(17)에 연결될 수 있도록 하여 차량 외부의 수소충전설비(20)에 구비되는 냉각수 공급시스템(25)을 포함하여 이루어진 것을 특징으로 한다.The hydrogen storage tank cooling system of the fuel cell vehicle according to the present invention is entirely in the shell 16 forming the outer portion of the hydrogen storage tank 14 so that heat can be exchanged with hydrogen in the hydrogen storage tank 14 while cooling water is discharged after circulation. Cooling water circulation pipe 17 is inserted and installed uniformly, and the cooling water supply system 25 is provided in the hydrogen filling facility 20 outside the vehicle by allowing the cooling water supply and can be connected to the cooling water circulation pipe (17). Characterized in that made.

특히, 상기 냉각수 공급시스템(25)은 냉각수 공급탱크(26)와, 이 냉각수 공급탱크(26)와 연결된 펌프(27)와, 이 펌프(27)와 연결되어 있고 상기 냉각수 순환파이프(17)의 냉각수 공급포트(18)와 연결 가능한 냉각수 공급도관(28)과, 상기 냉각수 공급탱크(26)와 연결되어 있고 상기 냉각수 순환파이프(17)의 냉각수 배출포트(19)에 연결 가능한 냉각수 배출도관(29)을 포함하는 것을 특징으로 한다.In particular, the cooling water supply system 25 is connected to the cooling water supply tank 26, the pump 27 connected to the cooling water supply tank 26, the pump 27 and the cooling water circulation pipe 17. Cooling water supply conduit (28) connectable to the cooling water supply port (18), and cooling water discharge conduit (29) connected to the cooling water supply tank (26) and connectable to the cooling water discharge port (19) of the cooling water circulation pipe (17). It characterized in that it comprises a).

또한, 상기 냉각수 순환파이프(17)는 쉘(16)의 길이방향을 따라 가면서 그 둘레에 코일형 또는 나선형으로 감기는 구조로 설치되는 것을 특징으로 한다.In addition, the cooling water circulation pipe 17 is characterized in that it is installed in a coiled or spirally wound structure while going along the longitudinal direction of the shell 16.

이하, 첨부한 도면을 참조하여 본 발명의 실시예를 더욱 상세하게 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부한 도 1은 본 발명에 따른 냉각시스템의 구성 및 냉각수의 이동경로를 보여주는 블럭도이고, 도 2는 본 발명에 따른 냉각시스템에서 수소저장탱크의 냉각수 순환파이프를 보여주는 단면도이다.1 is a block diagram illustrating a configuration of a cooling system and a movement path of cooling water according to the present invention, and FIG. 2 is a cross-sectional view illustrating a cooling water circulation pipe of a hydrogen storage tank in the cooling system according to the present invention.

도면부호 21과 24는 각각 수소공급시스템과 수소공급도관을 나타낸다.Reference numerals 21 and 24 denote hydrogen supply systems and hydrogen supply conduits, respectively.

이에 도시한 바와 같이, 본 발명의 냉각시스템은 차량(10)의 수소저장탱크(14)에 구비되는 냉각수 순환파이프(17)와, 차량 외부의 수소충전설비(20)에 구비되는 냉각수 공급시스템(25)을 포함하여 이루어진다.As shown in the drawing, the cooling system of the present invention includes a cooling water circulation pipe 17 provided in the hydrogen storage tank 14 of the vehicle 10 and a cooling water supply system provided in the hydrogen charging facility 20 outside the vehicle ( 25).

먼저, 상기 냉각수 순환파이프(17)는 수소 충전시 냉각수가 순환 후 배출되면서 수소저장탱크(14) 내 수소의 온도 상승을 억제하게 된다.First, the cooling water circulation pipe 17 suppresses the temperature rise of hydrogen in the hydrogen storage tank 14 while the cooling water is discharged after circulation during hydrogen charging.

즉, 상기 수소저장탱크(14)에는 냉각수 공급포트(18)와 냉각수 배출포트(19)가 구비되고, 상기 냉각수 순환파이프(17)가 냉각수 공급포트(18)와 냉각수 배출포트(19)를 연결하고 있는 구조이다.That is, the hydrogen storage tank 14 is provided with a cooling water supply port 18 and the cooling water discharge port 19, the cooling water circulation pipe 17 connects the cooling water supply port 18 and the cooling water discharge port 19. It is a structure.

따라서, 상기 냉각수 공급포트(18)를 통해 공급되는 냉각수는 냉각수 순환파이프(17)를 따라 순환한 후 냉각수 배출포트(19)를 통해 배출된다.Therefore, the cooling water supplied through the cooling water supply port 18 is circulated along the cooling water circulation pipe 17 and then discharged through the cooling water discharge port 19.

여기서, 상기 냉각수 순환파이프(17)는 수소저장탱크(14)의 외곽을 이루는 쉘(shell)(16)에 전체적으로 균일하게 삽입 설치된다.Here, the cooling water circulation pipe 17 is uniformly inserted into the shell (16) forming the outer portion of the hydrogen storage tank (14).

그 바람직한 실시예로서, 상기 냉각수 순환파이프(17)는 쉘(16)의 길이방향을 따라 가면서 그 둘레에 코일형 또는 나선형으로 감기는 구조로 설치될 수 있다.As a preferred embodiment, the cooling water circulation pipe 17 may be installed in a coiled or spirally wound structure while traveling along the longitudinal direction of the shell 16.

결국, 냉각수 순환파이프(17)를 따라 흐르는 저온의 냉각수는 수소저장탱크(14) 내부에 충전되어 있는 고온의 수소와 열교환을 하게 되며, 이와 같이 이루어지는 열교환에 의해 수소저장탱크(14) 내부의 수소 온도가 낮아질 수 있게 되는 것이다.As a result, the low temperature cooling water flowing along the cooling water circulation pipe 17 exchanges heat with the high temperature hydrogen charged in the hydrogen storage tank 14, and the hydrogen in the hydrogen storage tank 14 is generated by the heat exchange. The temperature can be lowered.

한편, 수소충전설비(20)에는 냉각수를 공급할 수 있는 냉각수 공급시스템(25)이 설치되어, 수소 충전시 냉각수를 함께 공급할 수 있도록 되어 있고, 이 냉각수 공급시스템(25)으로부터 공급되는 냉각수는 냉각수 순환파이프(17)로 유입되어 흐르도록 되어 있다.On the other hand, the hydrogen charging facility 20 is provided with a cooling water supply system 25 that can supply the cooling water, it is possible to supply the cooling water at the time of hydrogen charging, the cooling water supplied from the cooling water supply system 25 is the cooling water circulation It flows in and flows into the pipe 17.

상기 냉각수 공급시스템(25)은 그 일례로서, 냉각수 공급탱크(26)와, 이 냉각수 공급탱크(26)와 연결된 펌프(27)와, 이 펌프(27)와 연결되어 있고 상기 냉각수 순환파이프(17)의 냉각수 공급포트(18)와 연결 가능한 냉각수 공급도관(28)과, 상기 냉각수 공급탱크(26)와 연결되어 있고 상기 냉각수 순환파이프(17)의 냉각수 배출포트(19)에 연결 가능한 냉각수 배출도관(29)을 포함한다.The cooling water supply system 25 is, for example, a cooling water supply tank 26, a pump 27 connected to the cooling water supply tank 26, and a cooling water circulation pipe 17 connected to the pump 27. Cooling water supply conduit (28) connectable to the cooling water supply port (18) and cooling water discharge conduit connected to the cooling water supply tank (26) and connectable to the cooling water discharge port (19) of the cooling water circulation pipe (17). (29).

여기서, 상기 냉각수 공급도관(28) 및 배출도관(29)은 수소 충전시 충전자가 직접 차량(10)에 연결, 즉 수소저장탱크(14)의 해당 포트(18,19)에 연결하도록 되어 있는 것이다.Here, the cooling water supply conduit 28 and the discharge conduit 29 is to be connected to the charging port directly to the vehicle 10, that is, to the corresponding ports (18, 19) of the hydrogen storage tank 14 during hydrogen charging. .

이와 같이 하여, 수소 충전시 냉각수 공급도관(28)과 냉각수 배출도관(29)을 수소저장탱크(14)의 해당 포트(18,19)에 연결하고 펌프(27)를 구동시키면, 냉각수 공급탱크(26)에 저장되어 있던 냉각수가 냉각수 공급도관(28) 및 냉각수 공급포트(18)를 통해 냉각수 순환파이프(17)로 유입되고, 이 냉각수 순환파이프(17)에서 순환한 냉각수는 냉각수 배출포트(19) 및 냉각수 배출도관(29)을 통해 배출되어 다시 냉각수 공급탱크(26)로 모아지게 된다.In this manner, when the cooling water supply conduit 28 and the cooling water discharge conduit 29 are connected to the corresponding ports 18 and 19 of the hydrogen storage tank 14 and the pump 27 is driven, the cooling water supply tank ( The cooling water stored in 26 is introduced into the cooling water circulation pipe 17 through the cooling water supply conduit 28 and the cooling water supply port 18, and the cooling water circulated in the cooling water circulation pipe 17 is the cooling water discharge port 19. And is discharged through the cooling water discharge conduit 29 to be collected again into the cooling water supply tank 26.

결국, 수소 충전시 냉각수 순환파이프(17)를 통해 저온의 냉각수를 흐르게 하면서, 순환하는 저온의 냉각수와 수소저장탱크(14) 내 고온의 수소 사이에서 열교환이 이루어지도록 하고, 이를 통해 수소저장탱크(14) 내 수소의 온도 상승을 억제할 수 있게 되는 것이다.As a result, while the low-temperature cooling water flows through the cooling water circulation pipe 17 during hydrogen charging, heat exchange is performed between the low-temperature cooling water and the high temperature hydrogen in the hydrogen storage tank 14, thereby allowing the hydrogen storage tank ( 14) It is possible to suppress the temperature rise of hydrogen in the body.

이상에서 상술한 바와 같이, 본 발명에 따른 연료전지 차량의 수소저장탱크 냉각시스템에 의하면, 수소 충전시 수소충전설비로부터 공급되는 냉각수를 차량의 수소저장탱크에 설치된 냉각수 순환파이프를 통해 순환시켜, 순환하는 냉각수와 수소저장탱크 내의 수소 사이에서 열교환이 이루어지도록 하고, 이를 통해 충전시 수소저장탱크 내의 수소 온도 상승을 억제함으로써, 수소가 충전되는 시간을 단축하고, 수소 충전시 안전성을 향상시킬 수 있는 효과가 있다.As described above, according to the hydrogen storage tank cooling system of the fuel cell vehicle according to the present invention, the cooling water supplied from the hydrogen charging facility during hydrogen charging is circulated through the cooling water circulation pipe installed in the hydrogen storage tank of the vehicle, By exchanging heat between the cooling water and hydrogen in the hydrogen storage tank, and thereby suppressing the increase of the hydrogen temperature in the hydrogen storage tank during charging, it is possible to shorten the time for charging the hydrogen and to improve the safety during hydrogen charging. There is.

Claims (3)

냉각수가 순환 후 배출되면서 수소저장탱크(14) 내의 수소와 열교환이 이루어질 수 있도록 수소저장탱크(14)의 외곽을 이루는 쉘(16)에 전체적으로 균일하게 삽입 설치되는 냉각수 순환파이프(17)와, 냉각수 공급이 가능하고 상기 냉각수 순환파이프(17)에 연결될 수 있도록 하여 차량 외부의 수소충전설비(20)에 구비되는 냉각수 공급시스템(25)을 포함하여 이루어진 것을 특징으로 하는 연료전지 차량의 수소저장탱크 냉각시스템.Cooling water circulation pipe 17 and the cooling water circulating uniformly inserted into the shell 16 forming the outer shell of the hydrogen storage tank 14 so that the cooling water is discharged after circulation and heat exchange with the hydrogen in the hydrogen storage tank 14, Cooling of the hydrogen storage tank of the fuel cell vehicle, characterized in that it is possible to supply and to be connected to the cooling water circulation pipe 17 comprises a cooling water supply system 25 provided in the hydrogen charging facility 20 outside the vehicle. system. 제 1 항에 있어서, 상기 냉각수 공급시스템(25)은 냉각수 공급탱크(26)와, 이 냉각수 공급탱크(26)와 연결된 펌프(27)와, 이 펌프(27)와 연결되어 있고 상기 냉각수 순환파이프(17)의 냉각수 공급포트(18)와 연결 가능한 냉각수 공급도관(28)과, 상기 냉각수 공급탱크(26)와 연결되어 있고 상기 냉각수 순환파이프(17)의 냉각수 배출포트(19)에 연결 가능한 냉각수 배출도관(29)을 포함하는 것을 특징으로 하는 연료전지 차량의 수소저장탱크 냉각시스템.The cooling water supply system of claim 1, wherein the cooling water supply system (25) is connected to a cooling water supply tank (26), a pump (27) connected to the cooling water supply tank (26), and the pump (27). Cooling water supply conduit 28 connectable to the cooling water supply port 18 of (17) and cooling water connected to the cooling water supply tank 26 and connectable to the cooling water discharge port 19 of the cooling water circulation pipe 17. A hydrogen storage tank cooling system of a fuel cell vehicle, characterized in that it comprises an exhaust conduit (29). 제 1 항 또는 제 2 항에 있어서, 상기 냉각수 순환파이프(17)는 쉘(16)의 길이방향을 따라 가면서 그 둘레에 코일형 또는 나선형으로 감기는 구조로 설치되는 것을 특징으로 하는 연료전지 차량의 수소저장탱크 냉각시스템.The fuel cell vehicle according to claim 1 or 2, wherein the cooling water circulation pipe (17) is installed in a coiled or spirally wound structure while traveling along the longitudinal direction of the shell (16). Hydrogen Storage Tank Cooling System.
KR10-2002-0006969A 2002-02-07 2002-02-07 Cooling system for hydrogen storage tank of fuel cell powered vehicle KR100461150B1 (en)

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