WO2013162167A1 - Leakage detection and prevention system for liquid heater - Google Patents

Leakage detection and prevention system for liquid heater Download PDF

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Publication number
WO2013162167A1
WO2013162167A1 PCT/KR2013/001397 KR2013001397W WO2013162167A1 WO 2013162167 A1 WO2013162167 A1 WO 2013162167A1 KR 2013001397 W KR2013001397 W KR 2013001397W WO 2013162167 A1 WO2013162167 A1 WO 2013162167A1
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WO
WIPO (PCT)
Prior art keywords
heating medium
heater
gas
liquefied
discharge line
Prior art date
Application number
PCT/KR2013/001397
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French (fr)
Korean (ko)
Inventor
장대준
서수원
Original Assignee
한국과학기술원
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Priority to SG11201406838RA priority Critical patent/SG11201406838RA/en
Publication of WO2013162167A1 publication Critical patent/WO2013162167A1/en

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Classifications

    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • 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
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F17C9/04—Recovery of thermal energy
    • 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
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/038—Detecting leaked fluid
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion

Definitions

  • the present invention is a low temperature liquid for making a liquid or gas at a higher pressure and temperature by pressurizing or heating to supply a low temperature liquefied liquid such as liquefied natural gas (LNG) and liquefied petroleum gas (LPG) to a high pressure gas.
  • a low temperature liquefied liquid such as liquefied natural gas (LNG) and liquefied petroleum gas (LPG)
  • LNG liquefied natural gas
  • LPG liquefied petroleum gas
  • low temperature liquefied liquids such as liquefied natural gas (LNG) and liquefied petroleum gas (LPG) are pressurized or heated to supply high pressure gas to liquid or gas at higher pressure and temperature.
  • a pressurization device is used and consists of a liquefaction storage tank, a high pressure pump and a heater.
  • the liquefied liquid at about -160 ° C is pressurized through a high pressure pump, and the pressurized liquefied gas is vaporized while passing through a heater to supply a high temperature and high pressure vaporized gas to an engine.
  • the heating medium exchanges heat with low temperature liquefaction and is circulated through the heating medium regenerator.
  • the conventional heater has a problem that gas may leak inside the heater, and when the gas leaks, a situation in which the gas is mixed with the heating medium occurs.
  • natural gas mixed with steam may enter the boiler through steam condensate, which leads to a large accident such as a fire or an explosion.
  • the present invention has been made in order to solve the above problems, it is possible to primarily detect the leakage of natural gas, the liquid to stop the supply of the heating medium in the event of leakage of natural gas to prevent secondary accidents Its purpose is to provide a leak detection and blocking system for cargo heaters.
  • the present invention the high pressure pump 10 for raising the pressure by receiving a low temperature, low pressure liquefaction;
  • a heater 20 which receives a high pressure liquid from the high pressure pump 10 and increases a temperature;
  • a heating medium inlet line 30 connected to the heating medium inlet of the heater 20 to allow the heating medium to exchange heat with the liquefaction into the heater 20;
  • a heating medium inlet shutoff valve (35) installed in the heating medium inlet line (30);
  • a second sensing unit 25 having at least one of a pressure sensor, a temperature sensor, and a gas sensor installed in the heater 20;
  • a control unit for controlling the heating medium inlet shutoff valve 35 to be blocked according to the signal detected by the second sensing unit 25.
  • the leak detection and blocking system of the liquefied heater is provided. .
  • the heating medium discharge line 40 is connected to the heating medium outlet of the heater 20, the heating medium is discharged from the heater 20;
  • a heating medium outlet shutoff valve (45) installed at the heating medium discharge line (40);
  • a leakage gas accumulation tank 60 installed in the heating medium discharge line 40 to store the leaked gas and the heating medium;
  • a first sensing unit 65 in which at least one of a pressure sensor, a temperature sensor, a gas sensor, and a water level sensor is installed in the leak gas storage tank 60. It provides a leakage detection and blocking system of the liquefied heater, characterized in that the control to block the heating medium inlet shut-off valve 35 in accordance with the signal detected from the section (65).
  • the heating medium outlet blocking valve 45 is provided on the outlet side of the leak gas accumulation tank 60 provides a leak detection and blocking system of the liquefied heater.
  • the heating medium is steam
  • the heating medium discharge line 40 disposed on the inlet side of the leak gas accumulation tank 60
  • the condensed water generated in the heater 20 is stored Being steam trap 80
  • a first sensing unit 70 installed in the heating medium discharge line 40 and installed at an inlet side of the steam trap 80 to detect a level of the condensate.
  • the controller provides a leakage detection and blocking system of a liquefied heater, characterized in that the control to block the heating medium inlet shut-off valve 35 in accordance with the signal detected from the first detecting unit (70).
  • the second sensing unit 25 may primarily detect that natural gas leaks from the evaporation tube 21, and the control unit may control the heating medium inlet shutoff valve according to a signal detected from the second sensing unit 25. 35), it is possible to prevent the secondary accident by stopping the supply of the heating medium in case of leakage of natural gas.
  • the natural gas leak can be more effectively monitored by the first sensing unit 65, and the leaked gas storage tank 60 is installed in the heating medium discharge line 40 to prevent leakage of the natural gas and the heating medium. Can be stored temporarily for processing.
  • the water level of the steam trap 80 is reduced, so that the water level detector installed in the heating medium discharge line 40 may detect the leakage of natural gas, and the second detection installed in the heater 20.
  • the unit 25 primarily detects the leakage of natural gas, and the first detection unit 65 also detects the leakage gas accumulation tank 60 to shut off the heating medium inlet shutoff valve 35 by the controller. The supply of can be stopped.
  • the steam mixed with the already leaked natural gas is stored in the leak gas accumulation tank 60, thereby preventing the secondary risk.
  • FIG. 1 is a schematic diagram showing a leak detection and blocking system of a liquefied heater according to a first embodiment of the present invention.
  • FIG. 1 2 and 3 are schematic views showing the operation of the controller in FIG.
  • FIG. 4 is a schematic diagram showing a leak detection and blocking system of a liquefied heater according to a second embodiment of the present invention.
  • Leak detection and blocking system of the liquefied heater described in the embodiment of the present invention is further pressurized or heated to supply a low temperature liquefied liquid such as liquefied natural gas (LNG), liquefied petroleum gas (LPG) It can be applied to a low-temperature liquefied pressurization device for making a liquid or gas of a high pressure and temperature, in particular in the following examples will be described as an LNG heater as an example, but is not limited thereto.
  • LNG liquefied natural gas
  • LPG liquefied petroleum gas
  • FIG. 1 a leak detection and blocking system of a liquefied heater according to a first embodiment of the present invention is shown in FIG.
  • the leak detection and blocking system of the liquefied heater is the high pressure pump 10, the heater 20, the heating medium inlet line 30 and the heating medium inlet shutoff valve 35 and heating And a medium discharge line 40, a heating medium outlet shutoff valve 45, a second sensing unit 25, a control unit (not shown), a leaking gas accumulation tank 60, and a first sensing unit 65.
  • the low temperature and low pressure LNG stored in the LNG storage tank (not shown) is supplied to the high pressure pump 10 to increase the pressure, and the low temperature LNG with the increased pressure flows into the heater 20 through the LNG inflow line 11. do.
  • the LNG inlet line 11 is provided with an LNG inlet blocking valve 12 to block the inflow of LNG as necessary.
  • the low temperature LNG introduced into the heater 20 exchanges heat with the high temperature heating medium supplied into the heater 20 while flowing the evaporation tube 21 in the heater 20 to generate vaporized gas.
  • the generated gas is supplied to the high pressure gas.
  • a heating medium inlet line 30 for introducing a heating medium into the heater 20 is connected to the heating medium inlet of the heater 20.
  • the heating medium inlet valve 30 is provided in the heating medium inlet line 30 so as to block the inflow of the heating medium, if necessary, and a non-return valve 36 for preventing the backflow of the heating medium. .
  • the heating medium discharge line 40 for discharging the heating medium, which has undergone heat exchange with the liquefaction, from the heater 20 is connected to the heating medium outlet of the heater 20.
  • the heating medium discharge line 40 is provided with a heating medium outlet shutoff valve 45 for blocking the discharge of the heating medium, if necessary.
  • the high temperature heating medium is introduced into the heater 20 through the heating medium inlet line 30, and after the heating medium and the liquefaction is heat exchanged, the heating medium through the heating medium discharge line 40 It is discharged from the heater 20.
  • the heater 20 is preferably provided with a second sensing unit 25, the second sensing unit 25 may be at least one of a pressure sensor, a temperature sensor, a gas sensor.
  • a pressure sensor, a temperature sensor, and a gas sensor are all installed in the heater 20, and natural gas leaks from the evaporation tube 21 by the second detection unit 25. Can be detected primarily.
  • control unit blocks the heating medium inlet shutoff valve 35 according to the signal detected by the second sensing unit 25, so that the supply of the heating medium is stopped when the natural gas leaks, thereby preventing the secondary accident.
  • the leakage gas accumulation tank 60 and the first sensing unit 65 may be installed in the heating medium discharge line 40.
  • the leak gas accumulation tank 60 is installed in the heating medium discharge line 40 to store the leaked natural gas and the heating medium.
  • the heating medium outlet blocking valve 45 is preferably disposed on the outlet side of the leak gas accumulation tank (60).
  • the leak detection gas storage tank 60 is provided with a first detection unit 65, the first detection unit 65 may be at least one of a pressure sensor, a temperature sensor, a gas sensor, a water level sensor.
  • all of the pressure sensor, the temperature sensor, the gas sensor, and the water level sensor are provided in the leak gas accumulation tank 60.
  • the heater 20 is connected with a first emergency discharge valve 91 for emergency discharge of the heating medium and a first discharge line 90 which is provided with a first pressure safety valve 92 for pressure control.
  • a second emergency discharge valve 96 for emergency discharge of the heating medium and a second pressure relief valve 97 for pressure control are provided, respectively; Is connected, the first discharge line 90 and the second discharge line 95 is combined together to form a third discharge line (98).
  • the leak detection and blocking system of the liquefied heater according to the second embodiment is applied when the heating medium is steam, the high pressure pump 10, the heater 20 and the heating medium inlet line 30 and Heating medium inlet shutoff valve 35, heating medium outlet line 40, heating medium outlet shutoff valve 45, second sensing unit 25, control unit (not shown), leakage gas accumulation tank 60, and first
  • the detector 65 includes a steam trap 80 and a first detector 70.
  • the same components as those of the first embodiment are denoted by the same reference numerals, and detailed descriptions of the same components as those of the first embodiment are omitted, so please refer to the first embodiment.
  • Steam trap 80 is installed in the heating medium discharge line 40, is disposed on the inlet side of the leak gas accumulation tank 60, the condensate generated in the heater 20 is stored.
  • steam which is a heating medium
  • a steam trap 80 collecting the condensed water is installed in the heating medium discharge line 40.
  • a first sensing unit 70 is installed in the heating medium discharge line 40.
  • the first sensing unit 70 is a water level sensor, and is installed at the inlet side of the steam trap 80 to provide condensate. The water level can be detected.
  • the water level of the steam trap 80 is reduced, so that the leak of the natural gas can be detected by the water level detector installed in the heating medium discharge line 40.
  • the control unit blocks the heating medium inlet shutoff valve 35 according to the signal detected from the first sensing unit 70.
  • the first detection unit 65 detects leakage of natural gas primarily by the second detection unit 25 installed in the heater 20, and the first detection unit 65 also detects the leakage gas accumulation tank 60 by the controller.
  • the supply of steam can be stopped by blocking the heating medium inlet shutoff valve 35.

Abstract

The present invention relates to a leakage detection and prevention system for a liquid heater that is applied to a low temperature liquid pressurizing device which is used to pressurize or heat a low temperature liquid such as liquefied natural gas (LNG) or liquid petroleum gas (LPG) into a liquid or gas having a higher pressure and temperature in order to supply same to a place where high temperature gas is used. The present invention is capable of detecting the leakage of natural gas, and, in the event that the natural gas is leaking, the supply of a heating medium is stopped so as to prevent an accident that might result.

Description

액화물 가열기의 누출 감지 및 차단 시스템Leak Detection and Shutdown System of Liquefied Heaters
본 발명은 액화천연가스(LNG), 액화석유가스(LPG)와 같은 저온의 액화물을 고압가스 사용처에 공급하기 위하여 가압 또는 가열하여 더 높은 압력과 온도의 액체로 만들거나 기체로 만들기 위한 저온 액화물 가압장치에 적용되어, 천연가스가 누출되는 것을 1차적으로 감지할 수 있고, 천연가스의 누출시 가열매체의 공급이 중단되어 2차 사고를 방지할 수 있도록 하기 위한 액화물 가열기의 누출 감지 및 차단 시스템에 관한 것이다.The present invention is a low temperature liquid for making a liquid or gas at a higher pressure and temperature by pressurizing or heating to supply a low temperature liquefied liquid such as liquefied natural gas (LNG) and liquefied petroleum gas (LPG) to a high pressure gas. Applied to the cargo pressurization device, it can primarily detect the leakage of natural gas, and the leak detection of the liquefied heater to prevent the secondary accident by stopping the supply of heating medium when the natural gas leaks. A blocking system.
일반적으로 액화천연가스(LNG), 액화석유가스(LPG)와 같은 저온의 액화물을 고압가스 사용처에 공급하기 위하여 가압 또는 가열하여 더 높은 압력과 온도의 액체로 만들거나 기체로 만들기 위한 저온 액화물 가압장치가 사용되며, 액화물 저장탱크, 고압펌프, 가열기 등으로 구성된다.Generally, low temperature liquefied liquids, such as liquefied natural gas (LNG) and liquefied petroleum gas (LPG), are pressurized or heated to supply high pressure gas to liquid or gas at higher pressure and temperature. A pressurization device is used and consists of a liquefaction storage tank, a high pressure pump and a heater.
-160℃ 정도의 액화물은 고압펌프를 통하여 가압되고, 가압된 액화물은 가열기를 거치면서 기화되어, 고온 고압의 기화가스가 엔진 등에 공급된다. 가열기 내에서 가열매체는 저온의 액화물과 열교환하며 가열매체 재생기를 통해 순환하게 된다.The liquefied liquid at about -160 ° C is pressurized through a high pressure pump, and the pressurized liquefied gas is vaporized while passing through a heater to supply a high temperature and high pressure vaporized gas to an engine. In the heater, the heating medium exchanges heat with low temperature liquefaction and is circulated through the heating medium regenerator.
그러나 종래 가열기는 가스가 가열기 내부에서 누출되는 경우가 발생할 수 있다는 문제점이 있으며, 가스가 누출될 경우 가열매체와 혼합되는 상황이 발생한다.However, the conventional heater has a problem that gas may leak inside the heater, and when the gas leaks, a situation in which the gas is mixed with the heating medium occurs.
예를 들어, 천연가스가 누출되어 가열매체인 스팀과 섞이게 되는 경우에 스팀과 혼합된 천연가스가 스팀 응축수를 통하여 보일러로 유입될 수 있고, 이는 화재 또는 폭발과 같은 대형 사고로 이어진다.For example, when natural gas leaks and mixes with steam, which is a heating medium, natural gas mixed with steam may enter the boiler through steam condensate, which leads to a large accident such as a fire or an explosion.
특히, 선박의 경우에 가열매체 재생원이 보통 선박의 엔진룸에 위치하기 때문에 추가적으로 더 큰 위험이 따른다는 문제점이 있다.In particular, in the case of ships, there is a problem in that a heating medium regeneration source is usually located in the engine room of the ship, thus additionally increasing the risk.
본 발명은 전술한 문제점을 해결하기 위하여 안출된 것으로, 천연가스가 누출되는 것을 1차적으로 감지할 수 있고, 천연가스의 누출시 가열매체의 공급이 중단되어 2차 사고를 방지할 수 있도록 하는 액화물 가열기의 누출 감지 및 차단 시스템을 제공하는 데 그 목적이 있다.The present invention has been made in order to solve the above problems, it is possible to primarily detect the leakage of natural gas, the liquid to stop the supply of the heating medium in the event of leakage of natural gas to prevent secondary accidents Its purpose is to provide a leak detection and blocking system for cargo heaters.
또한, 본 발명의 목적은 누출되는 가스 및 가열매체를 임시로 저장하여 처리할 수 있도록 하는 액화물 가열기의 누출 감지 및 차단 시스템을 제공하는 것이다.It is also an object of the present invention to provide a leak detection and blocking system of a liquefied heater to temporarily store and treat leaking gas and heating medium.
본 발명은, 저온, 저압의 액화물을 공급받아 압력을 상승시키는 고압펌프(10); 상기 고압펌프(10)로부터 고압의 액화물을 공급받아 온도를 상승시키는 가열기(20); 상기 가열기(20)의 가열매체 유입구에 연결되어, 상기 액화물과 열교환하는 가열매체가 상기 가열기(20) 내로 유입되도록 하는 가열매체 유입라인(30); 상기 가열매체 유입라인(30)에 설치되는 가열매체 입구차단밸브(35); 상기 가열기(20)에 압력감지기, 온도감지기, 가스감지기 중 적어도 어느 하나 이상이 설치되어 있는 제2감지부(25); 및 상기 제2감지부(25)로부터 감지된 신호에 따라 상기 가열매체 입구차단밸브(35)가 차단되도록 제어하는 제어부;를 포함하는 것을 특징으로 하는 액화물 가열기의 누출 감지 및 차단 시스템을 제공한다.The present invention, the high pressure pump 10 for raising the pressure by receiving a low temperature, low pressure liquefaction; A heater 20 which receives a high pressure liquid from the high pressure pump 10 and increases a temperature; A heating medium inlet line 30 connected to the heating medium inlet of the heater 20 to allow the heating medium to exchange heat with the liquefaction into the heater 20; A heating medium inlet shutoff valve (35) installed in the heating medium inlet line (30); A second sensing unit 25 having at least one of a pressure sensor, a temperature sensor, and a gas sensor installed in the heater 20; And a control unit for controlling the heating medium inlet shutoff valve 35 to be blocked according to the signal detected by the second sensing unit 25. The leak detection and blocking system of the liquefied heater is provided. .
본 발명에 있어서, 상기 가열기(20)의 가열매체 배출구에 연결되어, 상기 가열기(20)로부터 상기 가열매체가 배출되도록 하는 가열매체 배출라인(40); 상기 가열매체 배출라인(40)에 설치되는 가열매체 출구차단밸브(45); 상기 가열매체 배출라인(40)에 설치되어, 누출되는 가스 및 가열매체가 저장되는 누출가스 축적탱크(60); 및 상기 누출가스 축적탱크(60)에 압력감지기, 온도감지기, 가스감지기, 수위감지기 중 적어도 어느 하나 이상이 설치되어 있는 제1감지부(65);를 더 포함하여, 상기 제어부는 상기 제1감지부(65)로부터 감지된 신호에 따라 상기 가열매체 입구차단밸브(35)가 차단되도록 제어하는 것을 특징으로 하는 액화물 가열기의 누출 감지 및 차단 시스템을 제공한다.In the present invention, the heating medium discharge line 40 is connected to the heating medium outlet of the heater 20, the heating medium is discharged from the heater 20; A heating medium outlet shutoff valve (45) installed at the heating medium discharge line (40); A leakage gas accumulation tank 60 installed in the heating medium discharge line 40 to store the leaked gas and the heating medium; And a first sensing unit 65 in which at least one of a pressure sensor, a temperature sensor, a gas sensor, and a water level sensor is installed in the leak gas storage tank 60. It provides a leakage detection and blocking system of the liquefied heater, characterized in that the control to block the heating medium inlet shut-off valve 35 in accordance with the signal detected from the section (65).
본 발명에 있어서, 상기 가열매체 출구차단밸브(45)는 상기 누출가스 축적탱크(60)의 출구측에 배치되는 것을 특징으로 하는 액화물 가열기의 누출 감지 및 차단 시스템을 제공한다.In the present invention, the heating medium outlet blocking valve 45 is provided on the outlet side of the leak gas accumulation tank 60 provides a leak detection and blocking system of the liquefied heater.
본 발명에 있어서, 상기 가열매체는 스팀이며, 상기 가열매체 배출라인(40)에 설치되되, 상기 누출가스 축적탱크(60)의 입구측에 배치되어, 상기 가열기(20)에서 발생하는 응축수가 저장되는 스팀트랩(80); 및 상기 가열매체 배출라인(40)에 설치되되, 상기 스팀트랩(80)의 입구측에 설치되어 상기 응축수의 수위를 감지할 수 있는 수위감지기를 포함하는 제1감지부(70);를 더 포함하고, 상기 제어부는 상기 제1감지부(70)로부터 감지된 신호에 따라 상기 가열매체 입구차단밸브(35)가 차단되도록 제어하는 것을 특징으로 하는 액화물 가열기의 누출 감지 및 차단 시스템을 제공한다.In the present invention, the heating medium is steam, is installed in the heating medium discharge line 40, disposed on the inlet side of the leak gas accumulation tank 60, the condensed water generated in the heater 20 is stored Being steam trap 80; And a first sensing unit 70 installed in the heating medium discharge line 40 and installed at an inlet side of the steam trap 80 to detect a level of the condensate. In addition, the controller provides a leakage detection and blocking system of a liquefied heater, characterized in that the control to block the heating medium inlet shut-off valve 35 in accordance with the signal detected from the first detecting unit (70).
본 발명의 액화물 가열기의 누출 감지 및 차단 시스템에 따르면, 다음과 같은 효과가 있다.According to the leak detection and blocking system of the liquefied heater of the present invention, there are the following effects.
제2감지부(25)에 의해 증발튜브(21)로부터 천연가스가 누출되는 것을 1차적으로 감지할 수 있고, 제2감지부(25)로부터 감지된 신호에 따라 제어부가 가열매체 입구차단밸브(35)를 차단시킴으로써, 천연가스의 누출시 가열매체의 공급이 중단되어 2차 사고를 방지할 수 있다.The second sensing unit 25 may primarily detect that natural gas leaks from the evaporation tube 21, and the control unit may control the heating medium inlet shutoff valve according to a signal detected from the second sensing unit 25. 35), it is possible to prevent the secondary accident by stopping the supply of the heating medium in case of leakage of natural gas.
나아가, 제1감지부(65)에 의해 천연가스가 누출되는 것을 더욱 효과적으로 감시할 수 있으며, 가열매체 배출라인(40)에 누출가스 축적탱크(60)를 설치함으로써 누출되는 천연가스 및 가열매체를 임시로 저장하여 처리할 수 있다.In addition, the natural gas leak can be more effectively monitored by the first sensing unit 65, and the leaked gas storage tank 60 is installed in the heating medium discharge line 40 to prevent leakage of the natural gas and the heating medium. Can be stored temporarily for processing.
한편, 천연가스가 누출되면 스팀트랩(80)의 수위가 줄어들게 되므로 가열매체 배출라인(40)에 설치되어 있는 수위감지기로 천연가스의 누출을 감지할 수 있으며, 가열기(20)에 설치된 제2감지부(25)에 의해 1차적으로 천연가스의 누출을 감지하며, 누출가스 축적탱크(60)에서도 제1감지부(65)가 감지하여 제어부에 의해 가열매체 입구차단밸브(35)를 차단시킴으로써 스팀의 공급을 중단시킬 수 있다.Meanwhile, when the natural gas leaks, the water level of the steam trap 80 is reduced, so that the water level detector installed in the heating medium discharge line 40 may detect the leakage of natural gas, and the second detection installed in the heater 20. The unit 25 primarily detects the leakage of natural gas, and the first detection unit 65 also detects the leakage gas accumulation tank 60 to shut off the heating medium inlet shutoff valve 35 by the controller. The supply of can be stopped.
나아가, 이미 누출된 천연가스와 혼합된 스팀은 누출가스 축적탱크(60) 내에 저장되며, 이를 통하여 2차 위험을 방지할 수 있다.Furthermore, the steam mixed with the already leaked natural gas is stored in the leak gas accumulation tank 60, thereby preventing the secondary risk.
도 1은 본 발명의 제1실시예에 따른 액화물 가열기의 누출 감지 및 차단 시스템을 도시한 개략도.1 is a schematic diagram showing a leak detection and blocking system of a liquefied heater according to a first embodiment of the present invention.
도 2 및 도 3은 도 1에서 제어부의 작동을 보여주기 위하여 도시한 개략도.2 and 3 are schematic views showing the operation of the controller in FIG.
도 4는 본 발명의 제2실시예에 따른 액화물 가열기의 누출 감지 및 차단 시스템을 도시한 개략도.4 is a schematic diagram showing a leak detection and blocking system of a liquefied heater according to a second embodiment of the present invention.
이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.
본 발명의 실시예에서 설명하는 액화물 가열기의 누출 감지 및 차단 시스템은 액화천연가스(LNG), 액화석유가스(LPG)와 같은 저온의 액화물을 고압가스 사용처에 공급하기 위하여 가압 또는 가열하여 더 높은 압력과 온도의 액체로 만들거나 기체로 만들기 위한 저온 액화물 가압장치에 적용될 수 있으며, 특히 하기의 실시예에서는 LNG 가열기를 일례로 하여 설명하기로 하며, 이에 한정하는 것은 아니다.Leak detection and blocking system of the liquefied heater described in the embodiment of the present invention is further pressurized or heated to supply a low temperature liquefied liquid such as liquefied natural gas (LNG), liquefied petroleum gas (LPG) It can be applied to a low-temperature liquefied pressurization device for making a liquid or gas of a high pressure and temperature, in particular in the following examples will be described as an LNG heater as an example, but is not limited thereto.
먼저, 본 발명의 제1실시예에 따른 액화물 가열기의 누출 감지 및 차단 시스템을 도 1에 도시하였다.First, a leak detection and blocking system of a liquefied heater according to a first embodiment of the present invention is shown in FIG.
도 1에 따르면, 제1실시예에 따른 액화물 가열기의 누출 감지 및 차단 시스템은 고압펌프(10)와 가열기(20)와 가열매체 유입라인(30)과 가열매체 입구차단밸브(35)와 가열매체 배출라인(40)과 가열매체 출구차단밸브(45)와 제2감지부(25)와 제어부(미도시)와 누출가스 축적탱크(60)와 제1감지부(65)를 포함한다.According to Figure 1, the leak detection and blocking system of the liquefied heater according to the first embodiment is the high pressure pump 10, the heater 20, the heating medium inlet line 30 and the heating medium inlet shutoff valve 35 and heating And a medium discharge line 40, a heating medium outlet shutoff valve 45, a second sensing unit 25, a control unit (not shown), a leaking gas accumulation tank 60, and a first sensing unit 65.
LNG 저장탱크(미도시)에 저장된 저온, 저압의 LNG가 고압펌프(10)로 공급되어 압력이 상승하며, 압력이 상승된 저온의 LNG가 LNG 유입라인(11)을 통하여 가열기(20)에 유입된다. LNG 유입라인(11)에는 필요에 따라 LNG의 유입을 차단할 수 있도록 LNG 유입차단밸브(12)가 설치되어 있다.The low temperature and low pressure LNG stored in the LNG storage tank (not shown) is supplied to the high pressure pump 10 to increase the pressure, and the low temperature LNG with the increased pressure flows into the heater 20 through the LNG inflow line 11. do. The LNG inlet line 11 is provided with an LNG inlet blocking valve 12 to block the inflow of LNG as necessary.
가열기(20)로 유입된 저온의 LNG는 가열기(20) 내의 증발튜브(21)를 유동하면서 가열기(20) 내로 공급되는 고온의 가열매체와 열교환되어 기화가스가 생성된다. 이렇게 생성되는 기화가스는 고압가스 사용처에 공급된다.The low temperature LNG introduced into the heater 20 exchanges heat with the high temperature heating medium supplied into the heater 20 while flowing the evaporation tube 21 in the heater 20 to generate vaporized gas. The generated gas is supplied to the high pressure gas.
가열기(20) 내로 가열매체가 유입되도록 하는 가열매체 유입라인(30)이 가열기(20)의 가열매체 유입구에 연결되어 있다.A heating medium inlet line 30 for introducing a heating medium into the heater 20 is connected to the heating medium inlet of the heater 20.
가열매체 유입라인(30)에는 필요에 따라 가열매체의 유입을 차단할 수 있도록 가열매체 입구차단밸브(35)가 설치되어 있고, 또한 가열매체의 역류 방지를 위한 역류방지밸브(36)가 설치되어 있다.The heating medium inlet valve 30 is provided in the heating medium inlet line 30 so as to block the inflow of the heating medium, if necessary, and a non-return valve 36 for preventing the backflow of the heating medium. .
액화물과 열교환이 이루어진 가열매체가 가열기(20)로부터 배출되도록 하는 가열매체 배출라인(40)이 가열기(20)의 가열매체 배출구에 연결되어 있다.The heating medium discharge line 40 for discharging the heating medium, which has undergone heat exchange with the liquefaction, from the heater 20 is connected to the heating medium outlet of the heater 20.
가열매체 배출라인(40)에는 필요에 따라 가열매체의 배출을 차단하는 가열매체 출구차단밸브(45)가 설치되어 있다.The heating medium discharge line 40 is provided with a heating medium outlet shutoff valve 45 for blocking the discharge of the heating medium, if necessary.
상기와 같이 구성되어, 가열매체 유입라인(30)의 통하여 고온의 가열매체가 가열기(20) 내로 유입되며, 가열매체와 액화물이 열교환된 후, 가열매체는 가열매체 배출라인(40)을 통하여 가열기(20)로부터 배출된다.It is configured as described above, the high temperature heating medium is introduced into the heater 20 through the heating medium inlet line 30, and after the heating medium and the liquefaction is heat exchanged, the heating medium through the heating medium discharge line 40 It is discharged from the heater 20.
한편, 가열기(20)에는 제2감지부(25)가 설치되는 것이 바람직하며, 제2감지부(25)는 압력감지기, 온도감지기, 가스감지기 중 적어도 어느 하나 이상이 될 수 있다.On the other hand, the heater 20 is preferably provided with a second sensing unit 25, the second sensing unit 25 may be at least one of a pressure sensor, a temperature sensor, a gas sensor.
도 2에 도시한 바와 같이, 본 실시예에서는 가열기(20)에 압력감지기, 온도감지기, 가스감지기가 모두 설치되어 있고, 제2감지부(25)에 의해 증발튜브(21)로부터 천연가스가 누출되는 것을 1차적으로 감지할 수 있다.As shown in FIG. 2, in the present embodiment, a pressure sensor, a temperature sensor, and a gas sensor are all installed in the heater 20, and natural gas leaks from the evaporation tube 21 by the second detection unit 25. Can be detected primarily.
이렇게 제2감지부(25)로부터 감지된 신호에 따라 제어부가 가열매체 입구차단밸브(35)를 차단시킴으로써, 천연가스의 누출시 가열매체의 공급이 중단되어 2차 사고를 방지할 수 있다.In this way, the control unit blocks the heating medium inlet shutoff valve 35 according to the signal detected by the second sensing unit 25, so that the supply of the heating medium is stopped when the natural gas leaks, thereby preventing the secondary accident.
한편, 실시예에 따라 가열매체 배출라인(40)에는 누출가스 축적탱크(60) 및 제1감지부(65)가 설치될 수 있다.On the other hand, according to the embodiment, the leakage gas accumulation tank 60 and the first sensing unit 65 may be installed in the heating medium discharge line 40.
도 1에 도시한 바와 같이, 누출가스 축적탱크(60)는 가열매체 배출라인(40)에 설치되어, 누출되는 천연가스 및 가열매체가 저장된다. 이때, 가열매체 출구차단밸브(45)는 누출가스 축적탱크(60)의 출구측에 배치되는 것이 바람직하다.As shown in FIG. 1, the leak gas accumulation tank 60 is installed in the heating medium discharge line 40 to store the leaked natural gas and the heating medium. At this time, the heating medium outlet blocking valve 45 is preferably disposed on the outlet side of the leak gas accumulation tank (60).
이러한 누출가스 축적탱크(60)에는 제1감지부(65)가 설치되며, 제1감지부(65)는 압력감지기, 온도감지기, 가스감지기, 수위감지기 중 적어도 어느 하나 이상이 될 수 있다.The leak detection gas storage tank 60 is provided with a first detection unit 65, the first detection unit 65 may be at least one of a pressure sensor, a temperature sensor, a gas sensor, a water level sensor.
본 실시예에서는 누출가스 축적탱크(60)에 압력감지기, 온도감지기, 가스감지기, 수위감지기가 모두 설치되어 있다.In this embodiment, all of the pressure sensor, the temperature sensor, the gas sensor, and the water level sensor are provided in the leak gas accumulation tank 60.
이렇게, 제1감지부(65)에 의해 천연가스가 누출되는 것을 더욱 효과적으로 감시할 수 있으며, 가열매체 배출라인(40)에 누출가스 축적탱크(60)를 설치함으로써 누출되는 천연가스 및 가열매체를 임시로 저장하여 처리할 수 있다.In this way, it is possible to more effectively monitor the natural gas leakage by the first detection unit 65, by installing the leakage gas accumulation tank 60 in the heating medium discharge line 40 to leak the natural gas and heating medium Can be stored temporarily for processing.
상기와 같이 구성되어, 도 3에 도시한 바와 같이, 가열기(20) 내부에서 증발튜브(21)를 통하여 천연가스가 누출되면 가열기(20) 외부에 별도로 설치된 누출가스 축적탱크(60)에 영향을 미치게 되므로 누출되는 가스로 인하여 누출가스 축적탱크(60)에 설치되어 있는 제1감지부(65)가 이를 감지하게 되고, 제어부는 제1감지부(65)로부터 감지된 신호에 따라 가열매체 입구차단밸브(35)를 차단시킴으로써, 천연가스의 누출시 열매체의 공급이 중단되도록 한다.3, as shown in FIG. 3, when natural gas leaks through the evaporation tube 21 inside the heater 20, the leakage gas accumulation tank 60 separately installed outside the heater 20 is affected. Due to the gas leaking, the first sensing unit 65 installed in the leaking gas accumulation tank 60 detects this, and the control unit cuts off the heating medium inlet according to the signal detected from the first sensing unit 65. By shutting off the valve 35, the supply of the heat medium is stopped when the natural gas leaks.
가열기(20)에는 가열매체의 비상방출을 위한 제1비상방출밸브(91)와, 압력조절을 위한 제1압력안전밸브(92)가 각각 설치되어 있는 제1배출라인(90)이 연결되어 있고, 누출가스 축적탱크(60)에는 가열매체의 비상방출을 위한 제2비상방출밸브(96)와, 압력조절을 위한 제2압력안전밸브(97)가 각각 설치되어 있는 제2배출라인(95)이 연결되어 있으며, 제1배출라인(90)과 제2배출라인(95)은 한데 합쳐져 제3배출라인(98)을 이룬다.The heater 20 is connected with a first emergency discharge valve 91 for emergency discharge of the heating medium and a first discharge line 90 which is provided with a first pressure safety valve 92 for pressure control. In the leakage gas storage tank 60, a second emergency discharge valve 96 for emergency discharge of the heating medium and a second pressure relief valve 97 for pressure control are provided, respectively; Is connected, the first discharge line 90 and the second discharge line 95 is combined together to form a third discharge line (98).
다음으로, 본 발명의 제2실시예에 따른 액화물 가열기의 누출 감지 및 차단 시스템을 도 4에 도시하였다.Next, the leak detection and blocking system of the liquefied heater according to the second embodiment of the present invention is shown in FIG.
도 4에 따르면, 제2실시예에 따른 액화물 가열기의 누출 감지 및 차단 시스템은 가열매체가 스팀인 경우에 적용되며, 고압펌프(10)와 가열기(20)와 가열매체 유입라인(30)과 가열매체 입구차단밸브(35)와 가열매체 배출라인(40)과 가열매체 출구차단밸브(45)와 제2감지부(25)와 제어부(미도시)와 누출가스 축적탱크(60)와 제1감지부(65)와 스팀트랩(80)과 제1감지부(70)를 포함한다.According to Figure 4, the leak detection and blocking system of the liquefied heater according to the second embodiment is applied when the heating medium is steam, the high pressure pump 10, the heater 20 and the heating medium inlet line 30 and Heating medium inlet shutoff valve 35, heating medium outlet line 40, heating medium outlet shutoff valve 45, second sensing unit 25, control unit (not shown), leakage gas accumulation tank 60, and first The detector 65 includes a steam trap 80 and a first detector 70.
제2실시예에서 제1실시예와 동일한 구성요소에 대해서는 동일한 부호를 부여하며, 제1실시예와 동일한 구성요소에 대한 상세한 설명을 생략하므로 상기 제1실시예를 참조하기 바란다.In the second embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed descriptions of the same components as those of the first embodiment are omitted, so please refer to the first embodiment.
스팀트랩(80)은 가열매체 배출라인(40)에 설치되되, 누출가스 축적탱크(60)의 입구측에 배치되어, 가열기(20)에서 발생하는 응축수가 저장된다. Steam trap 80 is installed in the heating medium discharge line 40, is disposed on the inlet side of the leak gas accumulation tank 60, the condensate generated in the heater 20 is stored.
즉, 가열매체인 스팀은 저온의 LNG와 열교환이 이루어지면서 응축수가 만들어지고, 이러한 응축수를 모아두는 스팀트랩(80)이 가열매체 배출라인(40)에 설치되는 것이다.That is, steam, which is a heating medium, is made of condensed water by heat exchange with low temperature LNG, and a steam trap 80 collecting the condensed water is installed in the heating medium discharge line 40.
또한, 가열매체 배출라인(40)에는 제1감지부(70)가 설치되는데, 본 실시예에서 제1감지부(70)는 수위감지기이며, 스팀트랩(80)의 입구측에 설치되어 응축수의 수위를 감지할 수 있다.In addition, a first sensing unit 70 is installed in the heating medium discharge line 40. In the present embodiment, the first sensing unit 70 is a water level sensor, and is installed at the inlet side of the steam trap 80 to provide condensate. The water level can be detected.
즉, 천연가스가 누출되면 스팀트랩(80)의 수위가 줄어들게 되므로 가열매체 배출라인(40)에 설치되어 있는 수위감지기로 천연가스의 누출을 감지할 수 있다.That is, when the natural gas leaks, the water level of the steam trap 80 is reduced, so that the leak of the natural gas can be detected by the water level detector installed in the heating medium discharge line 40.
제어부는 제1감지부(70)로부터 감지된 신호에 따라 가열매체 입구차단밸브(35)를 차단시킨다.The control unit blocks the heating medium inlet shutoff valve 35 according to the signal detected from the first sensing unit 70.
뿐만 아니라, 가열기(20)에 설치된 제2감지부(25)에 의해 1차적으로 천연가스의 누출을 감지하며, 누출가스 축적탱크(60)에서도 제1감지부(65)가 감지하여 제어부에 의해 가열매체 입구차단밸브(35)를 차단시킴으로써 스팀의 공급을 중단시킬 수 있다.In addition, the first detection unit 65 detects leakage of natural gas primarily by the second detection unit 25 installed in the heater 20, and the first detection unit 65 also detects the leakage gas accumulation tank 60 by the controller. The supply of steam can be stopped by blocking the heating medium inlet shutoff valve 35.
이미 누출된 천연가스와 혼합된 스팀은 누출가스 축적탱크(60) 내에 저장되며, 이를 통하여 2차 위험을 방지할 수 있다.Steam already mixed with the leaked natural gas is stored in the leaking gas accumulation tank 60, thereby preventing the secondary risk.
이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술 사상과 아래에 기재될 청구범위의 균등 범위 내에서 다양한 수정 및 변형 가능함은 물론이다.As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims (4)

  1. 저온, 저압의 액화물을 공급받아 압력을 상승시키는 고압펌프(10);High pressure pump 10 for raising the pressure by receiving a low temperature, low pressure liquefied;
    상기 고압펌프(10)로부터 고압의 액화물을 공급받아 온도를 상승시키는 가열기(20);A heater 20 which receives a high pressure liquid from the high pressure pump 10 and increases a temperature;
    상기 가열매체 배출라인(40)에 설치되는 가열매체 출구차단밸브(45);A heating medium outlet shutoff valve (45) installed in the heating medium discharge line (40);
    상기 가열매체 배출라인(40)에 설치되어, 누출되는 가스 및 가열매체가 저장되는 누출가스 축적탱크(60); 및A leakage gas accumulation tank 60 installed in the heating medium discharge line 40 to store the leaked gas and the heating medium; And
    상기 누출가스 축적탱크(60)에 압력감지기, 온도감지기, 가스감지기, 수위감지기 중 적어도 어느 하나 이상이 설치되어 있는 제1감지부(65); 를 포함하는 것을 특징으로 하는 액화물 가열기의 누출 감지 및 차단 시스템.A first sensing unit 65 provided with at least one of a pressure sensor, a temperature sensor, a gas sensor, and a water level sensor in the leak gas accumulation tank 60; Leak detection and blocking system of a liquefied heater comprising a.
  2. 제1항에 있어서,The method of claim 1,
    상기 액화물 가열기의 누출 감지 및 차단 시스템은The leak detection and blocking system of the liquefied heater
    상기 가열기(20)의 가열매체 배출구에 연결되어, 상기 가열기(20)로부터 상기 가열매체가 배출되도록 하는 가열매체 배출라인(40);A heating medium discharge line 40 connected to the heating medium outlet of the heater 20 to discharge the heating medium from the heater 20;
    상기 가열기(20)의 가열매체 유입구에 연결되어, 상기 액화물과 열교환하는 가열매체가 상기 가열기(20) 내로 유입되도록 하는 가열매체 유입라인(30);A heating medium inlet line 30 connected to the heating medium inlet of the heater 20 to allow the heating medium to exchange heat with the liquefaction into the heater 20;
    상기 가열매체 유입라인(30)에 설치되는 가열매체 입구차단밸브(35);A heating medium inlet shutoff valve (35) installed in the heating medium inlet line (30);
    상기 가열기(20)에 압력감지기, 온도감지기, 가스감지기 중 적어도 어느 하나 이상이 설치되어 있는 제2감지부(25); 및A second sensing unit 25 having at least one of a pressure sensor, a temperature sensor, and a gas sensor installed in the heater 20; And
    상기 제2감지부(25)로부터 감지된 신호에 따라 상기 가열매체 입구차단밸브(35)가 차단되도록 제어하는 제어부; 를 더 포함하여,A control unit controlling the heating medium inlet shutoff valve 35 to be blocked according to the signal detected by the second sensing unit 25; Including more,
    상기 제어부는 상기 제1감지부(65)로부터 감지된 신호에 따라 상기 가열매체 입구차단밸브(35)가 차단되도록 제어하는 것을 특징으로 하는 액화물 가열기의 누출 감지 및 차단 시스템.The control unit is a leakage detection and blocking system of a liquefied heater, characterized in that the control to block the heating medium inlet shut-off valve 35 in accordance with the signal detected from the first detection unit (65).
  3. 제2항에 있어서,The method of claim 2,
    상기 가열매체 출구차단밸브(45)는 상기 누출가스 축적탱크(60)의 출구측에 배치되는 것을 특징으로 하는 액화물 가열기의 누출 감지 및 차단 시스템.The heating medium outlet shutoff valve (45) is leak detection and blocking system of the liquefied heater, characterized in that disposed on the outlet side of the leakage gas accumulation tank (60).
  4. 제2항 또는 제3항에 있어서,The method according to claim 2 or 3,
    상기 가열매체는 스팀이며,The heating medium is steam,
    상기 가열매체 배출라인(40)에 설치되되, 상기 누출가스 축적탱크(60)의 입구측에 배치되어, 상기 가열기(20)에서 발생하는 응축수가 저장되는 스팀트랩(80); 및A steam trap (80) installed in the heating medium discharge line (40) and disposed at an inlet side of the leaking gas accumulation tank (60) to store condensed water generated in the heater (20); And
    상기 가열매체 배출라인(40)에 설치되되, 상기 스팀트랩(80)의 입구측에 설치되어 상기 응축수의 수위를 감지할 수 있는 수위감지기를 포함하는 제1감지부(70);를 더 포함하고,A first sensing unit 70 installed at the heating medium discharge line 40 and installed at an inlet side of the steam trap 80 to include a water level sensor capable of sensing the level of the condensate; ,
    상기 제어부는 상기 제1감지부(70)로부터 감지된 신호에 따라 상기 가열매체 입구차단밸브(35)가 차단되도록 제어하는 것을 특징으로 하는 액화물 가열기의 누출 감지 및 차단 시스템.The control unit is a leakage detection and blocking system of a liquefied heater, characterized in that for controlling the heating medium inlet shut-off valve 35 is cut in accordance with the signal detected from the first detection unit (70).
PCT/KR2013/001397 2012-04-23 2013-02-21 Leakage detection and prevention system for liquid heater WO2013162167A1 (en)

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CN105179932A (en) * 2015-08-14 2015-12-23 中海石油气电集团有限责任公司 Floating liquefied natural gas regasification system for low-temperature water area
CN105179936A (en) * 2015-08-26 2015-12-23 上海雷尼威尔技术有限公司 Canning protection method

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