KR101056984B1 - Liquefied Gas Filling Device - Google Patents

Liquefied Gas Filling Device Download PDF

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KR101056984B1
KR101056984B1 KR1020080136903A KR20080136903A KR101056984B1 KR 101056984 B1 KR101056984 B1 KR 101056984B1 KR 1020080136903 A KR1020080136903 A KR 1020080136903A KR 20080136903 A KR20080136903 A KR 20080136903A KR 101056984 B1 KR101056984 B1 KR 101056984B1
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South Korea
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liquefied gas
heat exchanger
storage tank
pump
liquefied
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KR1020080136903A
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Korean (ko)
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KR20100078601A (en
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이중성
한정옥
하종만
채정민
김봉규
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한국가스공사연구개발원
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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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • F25J1/0025—Boil-off gases "BOG" from storages
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0304—Heat exchange with the fluid by heating using an electric heater

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

본 발명은, 액화가스 충전장치에 관한 것으로써, 더욱 상세하게는 초저온 상태로 저장탱크부에 저장된 액화가스를 충전용 차량에 충전시 충전에 필요한 액화가스만을 열교환 시켜 이를 충전용 차량으로 공급하므로, 저장탱크부 및 배관에서 증발가스(BOG : Boil Off Gas)의 발생을 최소화하며 안정적으로 액화가스를 공급 및 충전할 수 있는 액화가스 충전장치에 관한 것이다.

본 발명의 액화가스 충전장치는, 저장탱크부; 액화가스를 상기 저장탱크부 및 충전용 차량으로 순환 공급시키는 펌프; 로 구성되는 액화가스 충전장치에 있어서, 상기 펌프에서 공급되는 저장탱크부의 액화가스를 포화상태로로 열교환시키는 1차열교환기; 상기 1차열교환기에서 1차 열교환된 액화가스를 2차로 열교환 시켜 액화가스를 포화상태로 만드는 2차열교환기; 상기 1,2차열교환기를 거친 액화가스가 상기 펌프를 통해 상기 충전용 차량으로 공급되고, 상기 액화가스의 압력, 유량, 온도 및 상기 저장탱크부의 수위 그리고 펌프의 구동상태를 감지하는 감지센서; 및 상기 감지센서에서 감지된 신호를 통해 액화가스의 흐름 및 액화가스의 공급량을 제어하는 통합제어부; 로 이루어지는 것을 특징으로 한다.

Figure R1020080136903

열교환, 액화가스 충전

The present invention relates to a liquefied gas filling apparatus, and more particularly, since the liquefied gas stored in the storage tank portion in a cryogenic state is heat-exchanged and only the liquefied gas necessary for charging is supplied to the charging vehicle, The present invention relates to a liquefied gas filling device capable of stably supplying and filling liquefied gas while minimizing generation of boil off gas (BOG) in the storage tank part and piping.

Liquefied gas filling apparatus of the present invention, the storage tank; A pump for circulating and supplying liquefied gas to the storage tank part and the vehicle for filling; An apparatus for filling a liquefied gas, comprising: a primary heat exchanger configured to heat-exchange a liquefied gas of a storage tank part supplied from the pump to a saturated state; A secondary heat exchanger for making the liquefied gas saturated by performing second heat exchange of the liquefied gas which is primarily heat-exchanged in the primary heat exchanger; A sensing sensor for supplying the liquefied gas through the first and second heat exchangers to the vehicle for charging through the pump, and for detecting a pressure, a flow rate, a temperature of the liquefied gas, a level of the storage tank, and a driving state of the pump; And integrated control unit for controlling the flow of liquefied gas and the supply amount of liquefied gas through the signal sensed by the sensor; .

Figure R1020080136903

Heat exchange, liquefied gas filling

Description

액화가스 충전장치{liquefied gas filling apparatus}Liquefied gas filling apparatus

본 발명은 액화가스 충전장치에 관한 것으로, 더욱 상세하게는 초저온 상태로 저장탱크부에 저장된 액화가스를 충전용 차량에 충전시 충전에 필요한 액화가스만 포화상태로 열교환 시키는 열교환기를 별도로 구성시켜 열교환된 액화가스를 충전용 차량에 공급하므로 저장탱크부 및 배관에서 증발가스(BOG : Boil Off Gas)의 발생을 최소화시켜 액화가스의 손실을 방지할 수 있으며 안정적으로 액화가스를 공급 및 충전할 수 있도록 액화가스 충전장치에 관한 것이다.The present invention relates to an apparatus for filling a liquefied gas, and more particularly, a heat exchanger configured to heat-exchange a liquefied gas stored in a storage tank part in a cryogenic state to a saturation state only when the liquefied gas required for charging is filled in a charging vehicle. Since liquefied gas is supplied to the vehicle for filling, it minimizes the generation of boil off gas (BOG) in the storage tank and piping, thereby preventing the loss of liquefied gas and liquefied to supply and charge liquefied gas stably. It relates to a gas filling device.

일반적으로, 차량용으로 보급하기 위한 액화가스는 액화가스 수용시설 즉 액화가스 충전시설의 저장탱크부에 액화가스를 수용한 후 이를 충전용 차량에 공급하여 충전하게 되는데, 이때 저장탱크부에 저장되는 액화가스는 초저온 상태인 -160 ~ -150 ℃로 저장되고 저장된 액화가스를 충전용 차량에 안정적으로 공급 및 충전시키기 위하여는 액화가스 온도는 충전에 필요한 온도인 -120 ~ 130℃로 가열하여 이를 충전용 차량에 공급하여야 한다.In general, liquefied gas for replenishing a vehicle is to receive the liquefied gas in the storage tank portion of the liquefied gas receiving facility, that is, the liquefied gas filling facility and to supply the liquefied gas to the charging vehicle, where the liquefied gas stored in the storage tank The gas is stored at -160 ~ -150 ℃, which is an ultra low temperature, and in order to stably supply and charge the stored liquefied gas to the charging vehicle, the liquefied gas temperature is heated to -120 ~ 130 ℃, which is necessary for charging, Must be supplied to the vehicle.

이를 위하여 종래에는 액화가스를 충전용 차량에 충전하기 전에 저장탱크부 의 액화가스를 충전에 필요한 온도로 가열하기 위하여 펌프 및 열교환기를 통해 포화상태로 액화가스를 열교환 시킨 후 포화상태의 액화가스를 충전용 차량에 공급하여 이를 충전하여 왔다.To this end, in order to heat the liquefied gas of the storage tank unit to the temperature required for charging before filling the liquefied gas in the charging vehicle, the liquefied gas is heat-treated in a saturated state through a pump and a heat exchanger and then filled with the liquefied gas in a saturated state. It has been supplied to the vehicle for charging.

이러한 종래의 방법은 열교환된 액화가스가 펌프로 통해 저장탱크부로 순환되므로, 저장탱크부의 액화가스의 온도가 전체적으로 상승하게 되고, 결과적으로 온도가 상승된 액화가스는 시간에 따라 저장탱크부에서 증발가스(BOG : Boil Off Gas)가 급격히 발생하여 다량의 액화가스가 손실되며 이에 따른 경제적인 손실과 함께 증발가스(BOG : Boil Off Gas) 발생시 다량의 탄소가 배출되어 온실가스를 배출하는 문제점이 발생하여 왔다.In this conventional method, since the liquefied gas heat-exchanged is circulated through the pump to the storage tank part, the temperature of the liquefied gas in the storage tank part as a whole rises, and as a result, the liquefied gas whose temperature is elevated is evaporated gas in the storage tank part with time. (BOG: Boil Off Gas) is rapidly generated, and a large amount of liquefied gas is lost.As a result, economical loss and a large amount of carbon are emitted when BOG (Boil Off Gas) is generated, causing greenhouse gas emissions. come.

본 발명은 상술한 바와 같은 종래기술의 문제점을 해결하기 위한 것으로, 본 발명의 주된 목적은, 액화가스 충전장치에서 액화가스를 충전용 차량에 충전시 열교환된 액화가스를 저장탱크부로 펌프를 통해 순환시키지 않고 충전에 필요한 액화가스를 펌프 및 별도의 열교환기를 통해 충전이 필요한 액화가스만을 열교환 시켜 이를 충전용 차량에 공급하므로, 액화가스의 전체적인 가열에 따른 증발가스(BOG : Boil Off Gas)의 발생을 최소화시켜 경제적 손실을 최소화시키며, 아울러 증발가스의 감소로 인하여 탄소 배출량을 감소시켜 온실가스 배출을 사전에 방지하고, 액화가스를 안정적으로 충전용 차량에 공급할 수 있는 액화가스 충전장치를 제공하는 데 그 목적이 있다.The present invention is to solve the problems of the prior art as described above, the main object of the present invention, the liquefied gas in the liquefied gas filling device when filling the liquefied gas to the charging vehicle through the pump to the storage tank circulated through the pump Since only the liquefied gas that needs to be charged is exchanged through a pump and a separate heat exchanger and supplied to the vehicle for charging, the liquefied gas necessary for the filling is supplied to the vehicle for charging. Boil Off Gas (BOG) It minimizes the occurrence and minimizes the economic loss, and also reduces the carbon emissions due to the reduction of the evaporation gas to prevent greenhouse gas emissions in advance, and to provide a liquefied gas filling device that can supply liquefied gas to the charging vehicle stably Its purpose is to.

상기와 같은 목적을 달성하기 위하여, 본 발명의 액화가스 충전장치는, 저장탱크부 및 액화가스를 상기 저장탱크부와 충전용 차량으로 순환 공급시키는 펌프를 포함하며, 1차열교환기, 2차열교환기, 감지센서 및 통합제어부를 포함한다. 상기 1차열교환기는 상기 펌프에서 공급되는 저장탱크부의 액화가스를 포화상태로 열교환시킨다. 상기 2차열교환기는 상기 1차열교환기에서 1차 열교환된 액화가스를 2차로 열교환 시켜 액화가스를 포화상태로 만든다. 상기 감지센서는 상기 액화가스의 압력, 유량, 온도 및 상기 저장탱크부의 수위 그리고 펌프의 구동상태를 감지한다. 상기 통합제어부는 상기 감지센서에서 감지된 신호를 통해 액화가스의 흐름 및 액화가스의 공급량을 제어한다. 상기 1차 열교환기 및 상기 2차열교환기를 모두 거친 액화가스가 상기 충전용 차량으로 공급되며, 상기 저장탱크부에 회수되는 액화가스는 상기 1차열교환기 만을 경유하는 액화가스이다. In order to achieve the above object, the liquefied gas filling apparatus of the present invention includes a storage tank unit and a pump for circulating the liquefied gas to the storage tank unit and the charging vehicle, the primary heat exchanger, secondary heat exchange Machine, sensor and integrated control unit. The primary heat exchanger heat-exchanges the liquefied gas of the storage tank portion supplied from the pump to the saturated state. The secondary heat exchanger heats the liquefied gas primary heat exchanged in the primary heat exchanger to the secondary to make the liquefied gas saturated. The sensor detects the pressure, flow rate, temperature of the liquefied gas and the level of the storage tank and the driving state of the pump. The integrated control unit controls the flow of the liquefied gas and the supply amount of the liquefied gas through the signal sensed by the detection sensor. The liquefied gas that has passed through both the primary heat exchanger and the secondary heat exchanger is supplied to the charging vehicle, and the liquefied gas recovered in the storage tank part is the liquefied gas passing through only the primary heat exchanger.

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이상에서 상술한 본 발명에 따르면, 액화가스 충전 중 증발가스(BOG : Boil Off Gas)의 발생을 최소화시켜, 액화가스의 손실에 따른 경제적 손실이 최소화 될 수 있으며, 동시에 탄소 배출을 최소화하여 대기 환경오염을 방지하며 안정적으로 액화가스를 충전용 차량에 공급할 수 있는 효과가 있다.According to the present invention as described above, by minimizing the generation of boil off gas (BOG) during liquefied gas filling, economic losses due to the loss of the liquefied gas can be minimized, at the same time minimize the carbon emissions to the atmosphere environment It is effective in preventing pollution and supplying liquefied gas to the charging vehicle stably.

이하, 첨부된 도면을 참조로 본 발명의 실시 예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 내지 3은 본 발명에 따른 액화가스 충전장치의 작동 상태를 나타낸 도면이고, 도 4는 본 발명에 따른 통합제어부를 나타낸 도면이다.1 to 3 is a view showing the operating state of the liquefied gas filling apparatus according to the present invention, Figure 4 is a view showing an integrated control unit according to the present invention.

우선 본 발명의 액화가스 충전장치는, 도 1 내지 도 3에 도시된 바와 같이, 초저온의 액화가스를 저장하는 저장탱크부(100)와, 액화가스를 상기 저장탱크부(100) 및 충전용 차량(TR)으로 순환 공급시키는 펌프(P101,P102), 그리고 상기 펌프(P101,P102)에서 공급되는 저장탱크부(100)의 액화가스를 포화상태로 열교환시키는 1차열교환기(V100), 상기 1차열교환기(V100)에서 1차 열교환된 액화가스를 2차로 열교환 시켜 액화가스를 포화상태로 만드는 2차열교환기(V200)가 추가 구비되며, 특히, 상기 1,2차열교환기(V100,V200)을 거친 액화가스가 상기 충전용 차량(TR)으로 공급되고, 상기 액화가스의 압력, 유량, 온도 및 상기 저장탱크부(100)의 수위 그리고 펌프(P101,P102)의 구동상태를 감지하는 감지센서(200) 및 상기 감지센서(200)에서 감지된 신호를 통해 액화가스의 흐름 및 액화가스의 공급량을 제어하는 통합제어부(300)로 이루어진다.First, the liquefied gas filling apparatus of the present invention, as shown in Figures 1 to 3, the storage tank unit 100 for storing the cryogenic liquefied gas, and the storage tank unit 100 and the vehicle for the liquefied gas Primary heat exchanger (V100), 1 for heat-exchanging the liquefied gas of the pump (P101, P102) for circulating supply to the (TR), and the liquefied gas of the storage tank unit 100 supplied from the pump (P101, P102), Secondary heat exchanger (V200) is further provided to make the liquefied gas saturated by heat-exchanging the liquefied gas firstly heat-exchanged in the heat exchanger (V100), in particular, the first and second heat exchangers (V100, V200). Liquefied gas passed through) is supplied to the recharging vehicle TR, and detects the pressure, flow rate, temperature of the liquefied gas and the level of the storage tank unit 100 and the driving state of the pumps P101 and P102. Flow and liquefaction of liquefied gas through the signal detected by the sensor 200 and the sensor 200 It consists of an integrated control unit 300 for controlling the supply amount of gas.

또한, 상기 저장탱크부(100)에는, 상기 펌프(P101,P102) 구동시 액화가스가 공급되는 제1공급관(110)과, 상기 1차열교환기(V100)를 거친 액화가스가 순환되는 순환관(120)이 더 구비되고, 상기 순환관(120)에는, 상기 펌프(P101.P102)에서 액화가스를 상기 2차열교환기(V200)으로 공급하는 분기관(130)이 구비된다.In addition, the storage tank unit 100, the first supply pipe 110, the liquefied gas is supplied when the pump (P101, P102) is driven, and the circulation pipe through which the liquefied gas passed through the primary heat exchanger (V100) is circulated 120 is further provided, the circulation pipe 120 is provided with a branch pipe 130 for supplying the liquefied gas from the pump (P101.P102) to the secondary heat exchanger (V200).

또한, 상기 분기관(130)에는, 상기 2차열교환기(V200)에서 열교환된 액화가스를 충전용 차량(TR)으로 공급하는 제2공급관(140)과 상기 2차열교환기(V200)을 통해 열교환 되지 않은 일부 액화가스를 상기 저장탱크부(100)로 회수하는 회수관(150)이 더 구비되고, 상기 제1공급관(110), 순환관(120), 분기관(130), 제2공급관(140) 및 회수관(150)에는 액화가스의 공급 방향을 상기 통합제어부(300)의 제어에 의하여 제어하는 제어밸브(V)가 구비된다.In addition, the branch pipe 130, through the second supply pipe 140 and the secondary heat exchanger (V200) for supplying the liquefied gas heat exchanged in the secondary heat exchanger (V200) to the charging vehicle (TR). A recovery pipe 150 for recovering some liquefied gas that is not heat exchanged to the storage tank part 100 is further provided, and the first supply pipe 110, the circulation pipe 120, the branch pipe 130, and the second supply pipe 140 and the recovery pipe 150 is provided with a control valve (V) for controlling the supply direction of the liquefied gas by the control of the integrated control unit (300).

특히, 상기 저장탱크부(100)에서 상기 펌프(P101,P102)를 통해 상기 2차열교환기(V200)로 공급되는 상기 2차열교환기(V200)는, 자연대류를 통한 액화가스의 열교환이 이루어지는 공냉식 열교환기와 외부의 공기를 강제로 공급하는 팬(V201) 그리고 액화가스를 가열하는 가열히터(V202)로 구성되어 액화가스의 열교환이 강제로 이루어지는 강제대류형 열교환기로 구성되게 되고, 아울러 상기 2차열교환기(V200)를 통해 열교환 되어 충전용 차량(TR)으로 액화 천연 가스 (LNG :liquefied natural gas)가 충전되게 된다.In particular, the secondary heat exchanger V200 supplied from the storage tank unit 100 to the secondary heat exchanger V200 through the pumps P101 and P102 is configured to exchange heat of liquefied gas through natural convection. It consists of an air-cooled heat exchanger and a fan (V201) forcibly supplying the outside air and a heating heater (V202) for heating the liquefied gas to form a forced convection heat exchanger for forced heat exchange of the liquefied gas, and the secondary Heat exchanged through the heat exchanger (V200) is filled with the liquefied natural gas (LNG: liquefied natural gas) to the charging vehicle (TR).

이상 본 발명의 구성에 대하여 상세히 설명하였고, 본 발명에 따른 액화가스 충전장치의 작동 상태를 도 1 내지 도 4를 참조하여 상세히 설명하고자 한다.The configuration of the present invention has been described in detail above, and an operation state of the liquefied gas filling apparatus according to the present invention will be described in detail with reference to FIGS. 1 to 4.

◆ 액화가스 충전장치의 구동 ◆◆ Drive of liquefied gas filling device ◆

1) 도 1을 참조하며 저장탱크부(100)에 저장된 초저온의 액화가스는 펌프(P101,P102)를 통해 액화가스가 이동되게 되고, 이때 액화가스는 1차열교환기(V100)을 통해 포화상태로 1차열교환이 된다.1) The cryogenic liquefied gas stored in the storage tank unit 100 is moved to the liquefied gas through the pumps P101 and P102, and the liquefied gas is saturated through the primary heat exchanger V100. Primary heat exchange.

(특히, 액화가스의 압력, 유량, 온도 및 상기 저장탱크부(100)의 수위 및 공급펌프(P101,P102)의 구동상태를 감지센서(200)에서 감지한 후 상기 감지된 신호를 통해 액화가스의 흐름 및 액화가스의 공급량을 통합제어부(300)에서 제어하며 그와 함께 제어밸브(V)도 함께 제어된다. 도 4 참조)In particular, after detecting the pressure, flow rate, temperature of the liquefied gas and the water level of the storage tank unit 100 and the driving state of the supply pumps (P101, P102) in the detection sensor 200, the liquefied gas through the detected signal Flow and the supply amount of the liquefied gas is controlled by the integrated control unit 300, together with the control valve (V) is also controlled.

2) 도 2를 참조하며 1차열교환기(V200)를 통해 열교환된 액화가스 중 일부는 상기 저장탱크부(100)로 순환되고 액화가스의 일부는 분기관(130)을 공급되고 액화가스는 회수관(150)을 통해 저장탱크부(100)로 회수되게 된다.2) Referring to FIG. 2, some of the liquefied gas heat exchanged through the primary heat exchanger V200 is circulated to the storage tank part 100, and a part of the liquefied gas is supplied to the branch pipe 130, and the liquefied gas is recovered. It is recovered to the storage tank unit 100 through the pipe 150.

(특히, 액화가스의 압력, 유량, 온도 및 상기 저장탱크부(100)의 수위 및 펌프(P101,P102)의 구동상태를 감지센서(200)에서 감지한 후 상기 감지된 신호를 통해 액화가스의 흐름 및 액화가스의 공급량을 통합제어부(300)에서 제어하며 그와 함께 상기 제어밸브(V)도 함께 제어된다. 도 4 참조) In particular, after detecting the pressure, flow rate, temperature of the liquefied gas and the water level of the storage tank unit 100 and the driving state of the pumps (P101, P102) in the detection sensor 200 and the liquefied gas through the detected signal The flow rate and the supply amount of the liquefied gas are controlled by the integrated control unit 300, together with the control valve (V) (see Fig. 4).

3) 도 3을 참조하며, 펌프(P101,P102)에서 공급된 액화가스는 충전용 차량(TR)에서 액화가스의 충전 요청시 충전에 필요한 액화가스는 1,2차열교환기(V100,V200)로 순차적으로 이동되고 상기 1,2차열교환기(V100,200)을 통해 열교환되어 포화상태의 액화가스는 충전용 차량(TR)으로 제2공급관(140)을 통해 공급되게 된다.3) Referring to Figure 3, the liquefied gas supplied from the pump (P101, P102) is the liquefied gas required for the filling of the liquefied gas in the charging vehicle (TR) for the first and second heat exchangers (V100, V200) Sequentially moved to and heat exchanged through the first and second heat exchanger (V100,200) is saturated liquefied gas is supplied through the second supply pipe 140 to the charging vehicle (TR).

(특히, 액화가스의 압력, 유량, 온도 및 상기 저장탱크부(100)의 수위 및 펌프(P101,P102)의 구동상태를 감지센서(200)에서 감지한 후 상기 감지된 신호를 통해 액화가스의 흐름 및 액화가스의 공급량을 통합제어부(300)에서 제어하며 이와 함께 상기 제어밸브(V)도 함께 제어된다. 도 4 참조) In particular, after detecting the pressure, flow rate, temperature of the liquefied gas and the water level of the storage tank unit 100 and the driving state of the pumps (P101, P102) in the detection sensor 200 and the liquefied gas through the detected signal The flow rate and the supply amount of the liquefied gas are controlled by the integrated control unit 300, and the control valve V is also controlled together (see Fig. 4).

이상에서 본 발명의 바람직한 실시 예에 대하여 도시하고 설명하였으나, 본 발명은 상기한 실시 예에 한정하지 아니하며, 특허 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형이 가능할 것이다.Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the above-described embodiments, and the general knowledge in the field of the present invention without departing from the gist of the present invention claimed in the claims. Anyone with a variety of variations will be possible.

도 1 내지 3은 본 발명에 따른 액화가스 충전장치의 작동 상태를 나타낸 도면,1 to 3 is a view showing the operating state of the liquefied gas filling apparatus according to the present invention,

도 4는 본 발명에 따른 통합제어부를 나타낸 도면.4 is a view showing an integrated control unit according to the present invention.

< 주요부분에 대한 부호의 설명 ><Explanation of symbols for main part>

100 : 저장탱크부100: storage tank part

110 : 제1공급관110: first supply pipe

120 : 순환관120: circulation tube

130 : 분기관130: branch pipe

140 : 제2공급관140: second supply pipe

150 : 회수관150: recovery pipe

P101,P102 : 펌프P101, P102: Pump

V100 : 1차열교환기V100: Primary Heat Exchanger

V20O : 2차열교환기V20O: Secondary heat exchanger

V201 : 팬V201: Fan

V202 : 가열히터V202: Heated Heater

200 : 감지센서200: detection sensor

300 : 통합제어부300: integrated control unit

TR : 충전용 차량TR: Rechargeable Vehicle

V : 제어밸브V: control valve

Claims (8)

저장탱크부 및 액화가스를 상기 저장탱크부와 충전용 차량으로 순환 공급시키는 펌프를 포함하는 액화가스 충전장치에 있어서, In the liquefied gas filling apparatus comprising a storage tank unit and a pump for circulating and supplying the liquefied gas to the storage tank unit and the charging vehicle, 상기 펌프에서 공급되는 저장탱크부의 액화가스를 포화상태로 열교환시키는 1차열교환기; A primary heat exchanger for heat-exchanging the liquefied gas of the storage tank portion supplied from the pump in a saturated state; 상기 1차열교환기에서 1차 열교환된 액화가스를 2차로 열교환 시켜 액화가스를 포화상태로 만드는 2차열교환기; A secondary heat exchanger for making the liquefied gas saturated by performing second heat exchange of the liquefied gas which is primarily heat-exchanged in the primary heat exchanger; 상기 액화가스의 압력, 유량, 온도 및 상기 저장탱크부의 수위 그리고 펌프의 구동상태를 감지하는 감지센서; 및 A sensor for sensing the pressure, flow rate, temperature of the liquefied gas, the water level of the storage tank part, and a driving state of the pump; And 상기 감지센서에서 감지된 신호를 통해 액화가스의 흐름 및 액화가스의 공급량을 제어하는 통합제어부를 포함하며, An integrated control unit for controlling the flow of the liquefied gas and the supply amount of the liquefied gas through the signal sensed by the sensor, 상기 1차 열교환기 및 상기 2차열교환기를 모두 거친 액화가스가 상기 충전용 차량으로 공급되고, The liquefied gas passed through both the primary heat exchanger and the secondary heat exchanger is supplied to the charging vehicle, 상기 저장탱크부에 회수되는 액화가스는 상기 1차열교환기 만을 경유하는 것을 특징으로 하는 액화가스 충전장치. Liquefied gas recovered in the storage tank portion liquefied gas filling apparatus, characterized in that via the first heat exchanger only. 제1항에 있어서, The method of claim 1, 상기 저장탱크부의 액화가스를 상기 펌프에 전달하는 제1공급관; 및 A first supply pipe configured to transfer the liquefied gas of the storage tank part to the pump; And 상기 펌프와 상기 1차열교환기 사이의 액화가스가 전달되는 순환관을 더 포함하는 것을 특징으로 하는 액화가스 충전장치. Liquefied gas filling apparatus characterized in that it further comprises a circulation pipe for transferring the liquefied gas between the pump and the primary heat exchanger. 제2항에 있어서, The method of claim 2, 상기 펌프의 액화가스를 상기 2차열교환기로 공급하는 분기관을 더 포함하는 것을 특징으로 하는 액화가스 충전장치.Liquefied gas filling apparatus further comprises a branch pipe for supplying the liquefied gas of the pump to the secondary heat exchanger. 제3항에 있어서, The method of claim 3, wherein 상기 분기관의 중간과 상기 저장탱크부 사이에 설치되어, 상기 펌프의 액화가스를 상기 저장탱크로 회수시키는 회수관; 및 A recovery pipe disposed between the middle of the branch pipe and the storage tank part to recover the liquefied gas of the pump to the storage tank; And 상기 2차열교환기의 액화가스를 상기 충전용 차량으로 공급하는 제2공급관을 더 포함하는 것을 특징으로 하는 액화가스 충전장치. And a second supply pipe for supplying the liquefied gas of the secondary heat exchanger to the charging vehicle. 제3항에 있어서,The method of claim 3, wherein 상기 제1공급관, 상기 순환관, 상기 분기관, 상기 제2공급관 및 상기 회수관의 중간에는 상기 통합제어부에 의해 개폐가 제어되는 제어밸브를 각각 포함하는 것을 특징으로 하는 액화가스 충전장치. Liquefied gas filling apparatus characterized in that each of the first supply pipe, the circulation pipe, the branch pipe, the second supply pipe and the recovery pipe includes a control valve which is controlled to open and close by the integrated control unit. 제1항에 있어서, 상기 2차열교환기는, The method of claim 1, wherein the secondary heat exchanger, 자연대류를 통한 액화가스의 열교환이 이루어지는 공냉식 열교환기인 것을 특징으로 액화가스 충전장치.Liquefied gas filling apparatus characterized in that the air-cooled heat exchanger is a heat exchange of the liquefied gas through natural convection. 제1항에 있어서, 상기 2차열교환기는,The method of claim 1, wherein the secondary heat exchanger, 외부의 공기를 강제로 공급하는 팬; 및 A fan for forcibly supplying outside air; And 액화가스를 가열하는 가열히터를 포함하는 강제대류 열교환기인 것을 특징으로 하는 액화가스 충전장치.Liquefied gas filling apparatus characterized in that the forced convection heat exchanger including a heating heater for heating the liquefied gas. 제1항에 있어서, 상기 액화가스는, The method of claim 1, wherein the liquefied gas, 액화 천연 가스(LNG :liquefied natural gas) 인 것을 특징으로 하는 액화가스 충전장치.Liquefied natural gas (LNG: liquefied natural gas) characterized in that the filling device.
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