KR100648967B1 - Nitrogen generator - Google Patents

Nitrogen generator Download PDF

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Publication number
KR100648967B1
KR100648967B1 KR1020050088022A KR20050088022A KR100648967B1 KR 100648967 B1 KR100648967 B1 KR 100648967B1 KR 1020050088022 A KR1020050088022 A KR 1020050088022A KR 20050088022 A KR20050088022 A KR 20050088022A KR 100648967 B1 KR100648967 B1 KR 100648967B1
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South Korea
Prior art keywords
air
nitrogen
supply line
unit
oxygen
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KR1020050088022A
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Korean (ko)
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시종민
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강림중공업 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods 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
    • 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
    • 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
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • 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
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/62—Liquefied natural gas [LNG]; Natural gas liquids [NGL]; Liquefied petroleum gas [LPG]
    • 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
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A nitrogen supplying apparatus is provided to supply nitrogen having high purity into a cargo tank by effectively separating nitrogen and oxygen in the air. In a nitrogen supplying apparatus, an air compressor part(10) supplies compressed air to a compressed air supply line(11). A water separator part(20) removes moisture of the compressed air and supplies the air to a dry air supply line(21). An air filter part(30) filters foreign substances in the dry air and supplies the air to a purified air supply line(31). A heater(40) heats the purified air and supplies the air to a heated air supply line(41). A gas separating film module part(50) separates oxygen of high penetration speed into an oxygen outlet and nitrogen of low penetration speed into a nitrogen outlet. And a control valve part(60) controls the supplying amount of nitrogen and includes a nitrogen exhaust line.

Description

질소공급장치{Nitrogen Generator}Nitrogen supply device {Nitrogen Generator}

도 1은 본 발명의 바람직한 실시예에 따른 질소공급장치를 도시한 개념도.1 is a conceptual diagram showing a nitrogen supply apparatus according to a preferred embodiment of the present invention.

도 2는 도 1의 기체분리막을 확대하여 도시한 일부 단면 사시도.2 is an enlarged partial cross-sectional perspective view of the gas separation membrane of FIG.

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

10 : 에어컴프레셔부 11 : 압축공기공급라인10: air compressor unit 11: compressed air supply line

20 : 워터세퍼레이터부 21 : 건공기공급라인20: water separator unit 21: dry air supply line

30 : 에어필터부 31 : 정화공기공급라인30: air filter unit 31: purified air supply line

40 : 히터부 41 : 가열공기공급라인40: heater 41: heating air supply line

50 : 기체분리막모듈부 51 : 케이스50: gas separation membrane module 51: case

53 : 중공사막 다발 53a : 중공사막53: hollow fiber membrane bundle 53a: hollow fiber membrane

53b : 중공부 55 : 공기투입구53b: hollow part 55: air inlet

57 : 질소공급구 59 : 산소배출구57: nitrogen supply port 59: oxygen outlet

60 : 컨트롤밸브부 61 : 질소배출라인60: control valve 61: nitrogen discharge line

본 발명은 질소공급장치에 관한 것이다.The present invention relates to a nitrogen supply device.

일반적으로, 선박의 카고탱크(cargo tank)는 원유탱크나 LPG, LNG의 냉동 탱커에 내장한 적하용 탱크를 말하며, 카고탱크 내에 저장된 원유나 LPG, LNG 등은 공기 중의 산소와 반응하여 연소나 폭발을 일으켜 선박의 화재의 발생을 일으킨다. 이처럼, 카고탱크 내의 산소는 일정농도 이상이 되면 가여물질을 연소시키는 직접적인 원인이 되므로, 선박의 화재발생이나 폭발을 방지하기 위하여 카고탱크 내의 산소농도가 5％ 이하가 되도록 규제하고 있다. 이렇게 카고탱크 내의 산소농도를 감소시키는 방안으로 카고탱크 내에 질소를 주입하여 상대적으로 산소농도를 감소시키는 방법이 제안되어 왔다. In general, a cargo tank (cargo tank) of the ship refers to a tank for loading the crude oil tank, LPG, LNG refrigeration tanker, the crude oil, LPG, LNG, etc. stored in the cargo tank reacts with oxygen in the air to burn or explode It causes fire of ship. As such, when the oxygen in the cargo tank is above a certain concentration, it is a direct cause of burning the extraneous substances. Therefore, the oxygen concentration in the cargo tank is regulated to be 5% or less in order to prevent fire or explosion of the ship. As a method of reducing the oxygen concentration in the cargo tank, a method of relatively reducing the oxygen concentration by injecting nitrogen into the cargo tank has been proposed.

그러나, 선박 내에서 공기 중의 질소와 산소를 효과적으로 분리하여 고순도 질소를 카고탱크에 공급할 수 있는 장치의 개발이 지속적으로 요구되고 있는 실정이다.However, there is a continuous need to develop a device capable of effectively separating nitrogen and oxygen in the air and supplying high purity nitrogen to the cargo tank in a ship.

본 발명은 전술한 문제점을 해결하기 위하여 안출된 것으로, 공기 중의 질소와 산소를 효과적으로 분리하여 고순도의 질소를 카고탱크에 공급하여 카고탱크 내의 화재발생이나 폭발을 방지할 수 있는 질소공급장치를 제공하는 데 그 목적이 있다.The present invention has been made in order to solve the above problems, to provide a nitrogen supply device that can effectively separate nitrogen and oxygen in the air to supply high-purity nitrogen to the cargo tank to prevent fire or explosion in the cargo tank. Its purpose is to.

전술한 목적을 달성하기 위한 본 발명의 질소공급장치는, 선박의 카고탱크에 질소를 공급하는 질소공급장치에 있어서, 외부의 공기를 흡입한 후 압축하여 압축공기공급라인으로 공급하는 에어컴프레셔부; 상기 압축공기공급라인에 연결되어, 상기 에어컴프레서부에 의해 압축된 압축공기가 원심분리실의 와류발생기를 통과하여 원심력과 충돌에 의해 압축공기의 수분을 제거하여 건공기공급라인으로 공급하는 워터세퍼레이터부; 상기 건공기공급라인에 연결되고, 활성탄을 함침한 그물형상의 망이 다수개 겹쳐져 구성되어, 상기 워터세퍼레이터부에 의해 수분이 제거된 건공기 중에 함유된 먼지나 유분 등의 이물질을 필터링하여 정화공기공급라인으로 공급하는 에어필터부; 상기 정화공기공급라인에 연결되어, 상기 에어필터부에 의해 이물질이 제거된 정화공기를 가열하여 가열공기공급라인으로 공급하는 히터부; 내부공간을 가지는 케이스와, 상기 케이스의 내부공간에 수용되며, 상기 케이스의 길이방향으로 배치되는 다수의 중공사막 다발과, 상기 케이스의 길이방향의 일단에 마련되어, 상기 가열공기공급라인과 연결되는 공기투입구와, 상기 케이스의 길이방향의 타단에 마련되는 질소공급구와, 상기 케이스의 폭방향의 외주면에 마련되는 산소배출구로 구성되어, 상기 히터부에 의해 가열된 가열공기가 상기 공기투입구로 투입되어, 상기 중공사막 다발을 통과하여 투과속도가 빠른 산소는 산소배출구로 분리되고, 상대적으로 투과속도가 느린 질소는 질소공급구으로 분리되는 기체분리막모듈부; 및 상기 질소공급구에 연결되어, 선박의 카고탱크로 공급되는 질소의 공급량을 조절하고, 설정조건에 맞지 않는 질소를 배출시키는 질소배출라인을 포함하는 컨트롤밸브부;를 포함하여 이루어지는 것을 특징으로 한다.A nitrogen supply device of the present invention for achieving the above object, in the nitrogen supply device for supplying nitrogen to the cargo tank of the ship, the air compressor unit for sucking the outside air and then compressed to supply to the compressed air supply line; Water separator connected to the compressed air supply line, the compressed air compressed by the air compressor unit passes through the vortex generator of the centrifugal separation chamber to remove the moisture of the compressed air by the centrifugal force and collision to supply to the dry air supply line part; It is connected to the dry air supply line and is composed of a plurality of mesh nets impregnated with activated carbon, and purifies air by filtering foreign substances such as dust or oil contained in the dry air from which water is removed by the water separator unit. An air filter unit for supplying to a supply line; A heater unit connected to the purge air supply line and configured to heat the purge air from which foreign substances have been removed by the air filter unit to supply the heated air supply line; A case having an inner space, a plurality of hollow fiber membrane bundles accommodated in the inner space of the case and disposed in the longitudinal direction of the case, and provided at one end in the longitudinal direction of the case, and connected to the heating air supply line; An inlet, a nitrogen supply port provided at the other end in the longitudinal direction of the case, and an oxygen outlet provided at an outer circumferential surface of the case in the width direction, and heated air heated by the heater unit is introduced into the air inlet, A gas separation membrane module unit in which oxygen having a high permeation rate through the hollow fiber membrane bundle is separated into an oxygen outlet, and nitrogen having a relatively low permeation rate is separated into a nitrogen supply port; And a control valve part connected to the nitrogen supply port to adjust a supply amount of nitrogen supplied to the cargo tank of the ship and to discharge nitrogen that does not meet the set conditions. .

이하, 본 발명의 바람직한 일실시예를 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 바람직한 실시예에 따른 질소공급장치를 도시한 개념도이 고, 도 2는 도 1의 기체분리막을 확대하여 도시한 일부 단면 사시도이다.1 is a conceptual diagram showing a nitrogen supply apparatus according to a preferred embodiment of the present invention, Figure 2 is a partial cross-sectional perspective view showing an enlarged gas separation membrane of FIG.

도 1에 도시한 바와 같이, 본 실시예의 질소공급장치는 에어컴프레셔부(10)와 워터세퍼레이터부(20)와 에어필터부(30)와 히터부(40)와 기체분리막모듈부(50)와 컨트롤밸브부(60)를 포함하여 구성된다.As shown in FIG. 1, the nitrogen supply apparatus of this embodiment includes an air compressor unit 10, a water separator unit 20, an air filter unit 30, a heater unit 40, a gas separation membrane module unit 50, It is configured to include a control valve unit 60.

에어컴프레셔(air compressor)부(10)는 외부의 공기를 흡입한 후 압축하여 압축공기공급라인(11)으로 공급한다.The air compressor unit 10 sucks the outside air and compresses it and supplies the compressed air to the compressed air supply line 11.

워터세퍼레이터(water separator)부(20)는 압축공기공급라인(11)에 연결되어, 에어컴프레셔부(10)에 의해 압축된 압축공기를 공급받는다. 에어컴프레셔부(10)에서의 공기 압축과정에서 응축수가 발생하게 되고 워터세퍼레이터부(20)는 이러한 응축수를 제거하는 역할을 한다. 워터세퍼레이터부(20)에 공급된 압축공기는 원심분리실의 와류발생기를 통과하며 내벽에 충돌을 하면서 응축수와 분리된다. 이처럼 압축공기 중의 수분은 원심력과 충돌에 의해 제거된 후 건공기공급라인(21)으로 공급된다.The water separator unit 20 is connected to the compressed air supply line 11 to receive compressed air compressed by the air compressor unit 10. Condensed water is generated during the air compression process in the air compressor unit 10 and the water separator unit 20 serves to remove the condensed water. The compressed air supplied to the water separator unit 20 passes through the vortex generator of the centrifuge chamber and is separated from the condensate while colliding with the inner wall. As such, the moisture in the compressed air is removed by the centrifugal force and the impact and then supplied to the dry air supply line (21).

에어필터(air filter)부(30)는 건공기공급라인(21)에 연결되고, 에어필터부(30)는 다수의 에어필터가 직렬로 연결되어 있다. 본 실시예에서 에어필터부(30)는 세 개의 에어필터가 직렬로 연결되어 있으나, 에어필터의 개수는 실시예에 따라 다양하게 변경하여 실시할 수 있음은 물론이다. 또한, 에어필터가 직렬로 연결되어 있어, 압축공기는 직렬로 연결된 에어필터를 차례로 통과하며 필터링된다.The air filter unit 30 is connected to the dry air supply line 21, and the air filter unit 30 is connected to a plurality of air filters in series. In the present embodiment, the air filter unit 30 has three air filters connected in series, but the number of air filters may be variously changed according to embodiments. In addition, since the air filters are connected in series, the compressed air is sequentially filtered through the air filters connected in series.

에어필터의 내부에는 활성탄(active carbon)을 함침한 그물형상의 망이 다수개 겹쳐져 구성되어 있다. 활성탄은 목재, 야자 껍질 혹은 석탄을 주원료로 하여 아주 큰 흡착성을 갖도록 한 것으로서, ｇ당 1,000㎡이상의 표면적을 갖는데, 표면에 존재하는 탄소원자의 관능기가 주위의 액체 또는 기체의 인력을 가하여 피흡착질의 분자를 흡착한다. 따라서, 카본을 함침한 그물형상의 망이 다수개 겹쳐져 구성된 에어필터는 이물질 등을 효과적으로 필터링 할 수 있게 된다. 이처럼 워터세퍼레이터부(20)에 의해 수분이 제거된 건공기는 건공기공급라인(21)을 따라 에어필터부(30)에 공급되며 직렬로 연결된 에어필터를 차례로 통과하여 건공기 중에 함유된 먼지나 유분 등의 이물질을 필터링된 후 정화공기공급라인(31)으로 공급한다. The inside of the air filter is composed of a plurality of mesh networks impregnated with active carbon. Activated carbon has a very large adsorption property using wood, coconut shell or coal as a main raw material, and has a surface area of 1,000 m2 or more per g. The functional group of carbon atoms on the surface is applied to the adsorbed molecules by attracting the surrounding liquid or gas. To adsorb. Therefore, the air filter composed of a plurality of mesh-impregnated mesh nets can effectively filter foreign substances and the like. As such, the dry air from which the water is removed by the water separator unit 20 is supplied to the air filter unit 30 along the dry air supply line 21 and sequentially passes through the air filters connected in series to remove dust contained in the dry air. Foreign substances such as oil are filtered and then supplied to the purified air supply line 31.

히터부(40)는 정화공기공급라인(31)에 연결되고, 에어필터부(30)에 의해 이물질이 제거된 정화공기를 가열하여 가열공기공급라인(41)으로 공급한다. 이때, 공기의 온도는 50 내지 60 ℃의 온도로 가열되는 것이 바람직하다.The heater unit 40 is connected to the purge air supply line 31 and heats the purge air from which the foreign matter is removed by the air filter unit 30 to supply the heated air supply line 41. At this time, the temperature of the air is preferably heated to a temperature of 50 to 60 ℃.

기체분리막모듈(membrane module)부(50)는, 도 2에 도시한 바와 같이, 케이스(51)와 중공사막 다발(53)과 공기투입구(55)와 질소공급구(57)와 산소배출구(59)로 구성된다.As shown in FIG. 2, the gas separation membrane module unit 50 includes a case 51, a hollow fiber membrane bundle 53, an air inlet 55, a nitrogen supply port 57, and an oxygen outlet 59. It is composed of

케이스(51)는 내부공간을 가지며, 본 실시예에서의 케이스(51)는 원통 형상이다.The case 51 has an inner space, and the case 51 in this embodiment has a cylindrical shape.

중공사막 다발(53)은 다수의 중공사막(53a)이 다발로 묶여져 이루어지며, 케이스(51)의 내부공간에 케이스(51)의 길이방향으로 배치되며 수용된다.Hollow fiber membrane bundle 53 is made of a plurality of hollow fiber membrane (53a) is bundled in a bundle, it is disposed in the longitudinal direction of the case 51 in the inner space of the case 51 is accommodated.

케이스(51)의 길이방향의 일단에는 공기투입구(55)가 마련되며, 이 공기투입구(55)는 가열공기공급라인(41)과 연결된다.An air inlet 55 is provided at one end in the longitudinal direction of the case 51, and the air inlet 55 is connected to the heating air supply line 41.

또한, 케이스(51)의 길이방향의 타단에는 질소공급구(57)가 마련된다.In addition, a nitrogen supply port 57 is provided at the other end in the longitudinal direction of the case 51.

케이스(51)의 폭방향의 외주면에는 산소배출구(59)가 마련된다.An oxygen outlet 59 is provided on the outer circumferential surface of the case 51 in the width direction.

상기와 같이 구성되어, 히터부(40)에 의해 가열된 가열공기가 가열공기공급라인(41)을 따라 공기투입구(55)로 투입되어, 중공사막 다발(53)의 중공부(53b)를 통과한다. 이때, 투과속도가 빠른 산소는 중공사막(53a)을 투과하여 산소배출구(59)로 분리되고, 상대적으로 투과속도가 느린 질소는 중공사막(53a)을 투과하지 못하고 중공사막 다발(53)의 중공부(53b)를 그대로 지나 질소공급구(57)로 분리된다.It is configured as described above, the heated air heated by the heater unit 40 is introduced into the air inlet 55 along the heating air supply line 41, and passes through the hollow portion 53b of the hollow fiber membrane bundle 53. do. At this time, oxygen having a high permeation rate passes through the hollow fiber membrane 53a and is separated into the oxygen outlet 59, and nitrogen having a relatively low permeation rate does not penetrate the hollow fiber membrane 53a and the hollow of the hollow fiber membrane bundle 53 Passed through the portion (53b) as it is separated into a nitrogen supply port (57).

상기와 같이, 기체분리막모듈부(50)를 통과한 공기는 질소와 산소로 분리되어, 95％ 내지 99.5％ 순도의 질소를 질소공급구(57)에 공급하며, 분리된 산소는 산소배출구(59)로 배출된다. 질소의 순도와 생산량과 생산압력 등은 실시예에 따라 적절하게 조절하여 공급할 수 있을 것이다.As described above, the air passing through the gas separation membrane module unit 50 is separated into nitrogen and oxygen, and supplies 95% to 99.5% purity nitrogen to the nitrogen supply port 57, and the separated oxygen is the oxygen discharge port 59 To be discharged. Nitrogen purity, production amount and production pressure may be appropriately adjusted according to the embodiment.

특히, 본 실시예에서의 기체분리막모듈은 세 개로 구성되어, 병렬로 연결되어 있으나, 기체분리막모듈의 개수는 질소의 생산량에 따라 적절하게 변경하여 실시할 수 있을 것이다.In particular, the gas separation membrane module in this embodiment is composed of three, are connected in parallel, the number of gas separation membrane module may be carried out by appropriately changed according to the amount of nitrogen production.

컨트롤밸브부(60)는 질소공급구(57)에 연결되어, 선박의 카고탱크로 질소가 공급되는 양을 조절하고, 설정조건에 맞지 않는 질소를 배출시키는 질소배출라인(61)을 포함하여 구성된다.The control valve unit 60 is connected to the nitrogen supply port 57, to control the amount of nitrogen supplied to the cargo tank of the ship, and comprises a nitrogen discharge line 61 for discharging nitrogen that does not meet the set conditions do.

이하, 전술한 구성을 갖는 본 발명의 실시예의 작용을 설명한다.Hereinafter, the operation of the embodiment of the present invention having the above-described configuration will be described.

외부의 공기가 에어컴프레셔부(10)로 흡입되어 압축되고, 압축된 공기는 압축공기공급라인(11)으로 공급된다. Outside air is sucked into the air compressor unit 10 and compressed, and the compressed air is supplied to the compressed air supply line 11.

압축공기공급라인(11)으로 공급된 압축공기는 워터세퍼레이터부(20)에 이송되어, 워터세퍼레이터부(20)의 원심분리실에 내장된 와류발생기를 통과하여 원심력과 충돌에 의해 수분이 제거된 후 건공기공급라인(21)으로 공급된다.The compressed air supplied to the compressed air supply line 11 is transferred to the water separator unit 20, and passes through a vortex generator built into the centrifuge chamber of the water separator unit 20 to remove moisture by collision with centrifugal force. Then it is supplied to the dry air supply line (21).

건공기공급라인(21)으로 공급된 건공기는 에어필터부(30)에 이송되며, 직렬로 연결된 세 개의 에어필터를 차례로 통과하며 필터링된 후 정화공기공급라인(31)으로 공급된다.The dry air supplied to the dry air supply line 21 is transferred to the air filter unit 30, passes through three air filters connected in series, and is filtered and then supplied to the purified air supply line 31.

정화공기공급라인(31)으로 공급된 정화공기는 히터부(40)에 이송되어 50 내지 60 ℃의 온도로 가열된 후 가열공기공급라인(41)으로 공급된다.Purified air supplied to the purge air supply line 31 is transferred to the heater unit 40 and heated to a temperature of 50 to 60 ℃ and then supplied to the heated air supply line 41.

가열공기공급라인(41)으로 공급된 가열공기는 기체분리막모듈부(50)에 이송되며, 병렬로 연결된 기체분리막모듈부(50)를 통과하여 질소와 산소로 분리되며, 산소는 산소배출구(59)로 배출되고, 95％ 내지 99.5％ 순도의 질소는 질소공급구(57)에 공급된다.The heated air supplied to the heated air supply line 41 is transferred to the gas separation membrane module unit 50, passes through the gas separation membrane module unit 50 connected in parallel, and is separated into nitrogen and oxygen, and oxygen is discharged from the oxygen outlet 59. ), 95% to 99.5% purity nitrogen is supplied to the nitrogen supply port (57).

질소공급구(57)에 공급된 질소는 컨트롤밸브부(60)에 의해 적절하게 공급량이 조절되어 카고탱크로 주입되고, 설정조건에 맞지 않는 질소는 질소배출라인(61)으로 배출된다.Nitrogen supplied to the nitrogen supply port 57 is appropriately controlled by the control valve unit 60 to be injected into the cargo tank, and nitrogen that does not meet the set conditions is discharged to the nitrogen discharge line 61.

상기와 같이, 공기 중의 질소와 산소를 효과적으로 분리하여 고순도의 질소를 카고탱크에 공급하여 카고탱크 내의 화재발생이나 폭발을 방지할 수 있다.As described above, it is possible to effectively separate nitrogen and oxygen in the air and supply high purity nitrogen to the cargo tank to prevent fire or explosion in the cargo tank.

이상에서 설명한 바와 같은 본 발명의 질소공급장치에 따르면, 다음과 같은 효과가 있다.According to the nitrogen supply apparatus of the present invention as described above, has the following effects.

공기 중의 질소와 산소를 효과적으로 분리하여 고순도의 질소를 카고탱크에 공급하여 카고탱크 내의 화재발생이나 폭발을 방지할 수 있다.By effectively separating the nitrogen and oxygen in the air to supply high-purity nitrogen to the cargo tank to prevent fire or explosion in the cargo tank.

본 발명은 첨부된 도면에 도시된 실시예를 참고로 설명되었으나, 이는 예시적인 것이며, 당해 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 실시예가 가능하다는 점을 이해할 수 있을 것이다. 따라서 본 발명의 진정한 보호범위는 첨부된 청구범위에 의해서만 정해져야 할 것이다. Although the present invention has been described with reference to the embodiments shown in the accompanying drawings, it is intended to be illustrative, and those skilled in the art will understand that various modifications and equivalent embodiments are possible from this. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (1)

선박의 카고탱크에 질소를 공급하는 질소공급장치에 있어서,In the nitrogen supply device for supplying nitrogen to the cargo tank of the ship, 외부의 공기를 흡입한 후 압축하여 압축공기공급라인으로 공급하는 에어컴프레셔부;An air compressor unit which sucks the outside air and compresses it and supplies the compressed air to the compressed air supply line; 상기 압축공기공급라인에 연결되어, 상기 에어컴프레서부에 의해 압축된 압축공기가 원심분리실의 와류발생기를 통과하여 원심력과 충돌에 의해 압축공기의 수분을 제거하여 건공기공급라인으로 공급하는 워터세퍼레이터부;Water separator connected to the compressed air supply line, the compressed air compressed by the air compressor unit passes through the vortex generator of the centrifugal separation chamber to remove the moisture of the compressed air by the centrifugal force and collision to supply to the dry air supply line part; 상기 건공기공급라인에 연결되고, 활성탄을 함침한 그물형상의 망이 다수개 겹쳐져 구성되어, 상기 워터세퍼레이터부에 의해 수분이 제거된 건공기 중에 함유된 먼지나 유분 등의 이물질을 필터링하여 정화공기공급라인으로 공급하는 에어필터부;It is connected to the dry air supply line and is composed of a plurality of mesh nets impregnated with activated carbon, and purifies air by filtering foreign substances such as dust or oil contained in the dry air from which water is removed by the water separator unit. An air filter unit for supplying to a supply line; 상기 정화공기공급라인에 연결되어, 상기 에어필터부에 의해 이물질이 제거된 정화공기를 가열하여 가열공기공급라인으로 공급하는 히터부;A heater unit connected to the purge air supply line and configured to heat the purge air from which foreign substances have been removed by the air filter unit to supply the heated air supply line; 내부공간을 가지는 케이스와, 상기 케이스의 내부공간에 수용되며, 상기 케이스의 길이방향으로 배치되는 다수의 중공사막 다발과, 상기 케이스의 길이방향의 일단에 마련되어, 상기 가열공기공급라인과 연결되는 공기투입구와, 상기 케이스의 길이방향의 타단에 마련되는 질소공급구와, 상기 케이스의 폭방향의 외주면에 마련되는 산소배출구로 구성되어, 상기 히터부에 의해 가열된 가열공기가 상기 공기투입구로 투입되어, 상기 중공사막 다발을 통과하여 투과속도가 빠른 산소는 산소배 출구로 분리되고, 상대적으로 투과속도가 느린 질소는 질소공급구으로 분리되는 기체분리막모듈부; 및A case having an inner space, a plurality of hollow fiber membrane bundles accommodated in the inner space of the case and disposed in the longitudinal direction of the case, and provided at one end in the longitudinal direction of the case, and connected to the heating air supply line; An inlet, a nitrogen supply port provided at the other end in the longitudinal direction of the case, and an oxygen outlet provided at an outer circumferential surface of the case in the width direction, and heated air heated by the heater unit is introduced into the air inlet, A gas separation membrane module unit in which oxygen having a high permeation rate through the bundle of hollow fiber membranes is separated into an oxygen discharge outlet, and nitrogen having a relatively low permeation rate is separated into a nitrogen supply port; And 상기 질소공급구에 연결되어, 선박의 카고탱크로 공급되는 질소의 공급량을 조절하고, 설정조건에 맞지 않는 질소를 배출시키는 질소배출라인을 포함하는 컨트롤밸브부;를 포함하여 이루어지는 것을 특징으로 하는 질소공급장치.A control valve unit connected to the nitrogen supply port to control a supply amount of nitrogen supplied to a cargo tank of the ship, and a nitrogen discharge line for discharging nitrogen that does not meet a set condition; Feeder.
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Cited By (9)

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Publication number Priority date Publication date Assignee Title
KR100928589B1 (en) * 2009-01-22 2009-11-24 허영도 The apparatus for separating mixed gases
KR200457493Y1 (en) * 2009-01-12 2011-12-22 이상호 Membrane dryer for air compressor
KR200464341Y1 (en) 2012-10-09 2012-12-28 정우라이팅 주식회사 Supply device for nitrogen
KR200476431Y1 (en) 2012-12-28 2015-02-27 주식회사 현대미포조선 Air supply line for air tool
KR101660281B1 (en) 2015-05-11 2016-09-28 케이에스티 주식회사 High purity nitrogen generator for high functional glove box
KR101753001B1 (en) * 2016-05-04 2017-07-03 김종훈 Apparatus for removing included moisture in oil
KR20210056524A (en) 2019-11-11 2021-05-20 이엠코리아주식회사 Module type nitrogen generating apparatus for topside of offshore plant
KR20210056530A (en) 2019-11-11 2021-05-20 이엠코리아주식회사 Module type nitrogen generating apparatus for topside of offshore plant capable of regulating nitrogen purity
KR102529060B1 (en) * 2022-04-06 2023-05-04 김봉호 Mixed gas separation supply device and gas supply system including the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200457493Y1 (en) * 2009-01-12 2011-12-22 이상호 Membrane dryer for air compressor
KR100928589B1 (en) * 2009-01-22 2009-11-24 허영도 The apparatus for separating mixed gases
KR200464341Y1 (en) 2012-10-09 2012-12-28 정우라이팅 주식회사 Supply device for nitrogen
KR200476431Y1 (en) 2012-12-28 2015-02-27 주식회사 현대미포조선 Air supply line for air tool
KR101660281B1 (en) 2015-05-11 2016-09-28 케이에스티 주식회사 High purity nitrogen generator for high functional glove box
KR101753001B1 (en) * 2016-05-04 2017-07-03 김종훈 Apparatus for removing included moisture in oil
KR20210056524A (en) 2019-11-11 2021-05-20 이엠코리아주식회사 Module type nitrogen generating apparatus for topside of offshore plant
KR20210056530A (en) 2019-11-11 2021-05-20 이엠코리아주식회사 Module type nitrogen generating apparatus for topside of offshore plant capable of regulating nitrogen purity
KR102529060B1 (en) * 2022-04-06 2023-05-04 김봉호 Mixed gas separation supply device and gas supply system including the same

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