Abstract:
본 발명의 과제는 콤팩트하게 구성할 수 있는 동시에, 취급이 용이한 액화 가스 재액화 장치를 제공하는 것이다. 카고 탱크(3) 내의 LNG로부터 기화된 BOG를 재액화하는 액화 가스 재액화 장치(1)는, BOG보다도 낮은 응축 온도를 갖는 질소가 순환하는 2차 냉매 순환 유로(24)에 설치되어, 질소를 액화하는 냉동기군(20)과, 냉동기군(20)에 의해 냉각된 액체 질소를 2차 냉매 순환 유로(24) 내에서 반송하는 반송 펌프(22)와, 2차 냉매 순환 유로(24)에 설치되어, 반송 펌프(22)에 의해 반송된 액체 질소와 BOG를 열교환시켜 BOG를 응축 액화시키는 열교환기(12)를 구비하고 있다. 열교환기(12)는 카고 탱크(3)의 근방에 설치되어 있다.
Abstract:
Disclosed is a membrane material for gas holders which has high gas barrier properties, while having wear resistance and bending resistance sufficient for gas holders in addition to the strength of the base fabric. Specifically disclosed is a membrane material used for a gas holder for storing or recovering a gas. The membrane material is composed of at least four layers, namely a protective layer, a base fabric layer, a gas barrier layer and another protective layer.
Abstract:
A vessel for transporting liquefied natural gas is provided. The vessel generally includes a gas transfer system for on-loading and off-loading natural gas to and from the vessel at essentially ambient temperature. The vessel further includes a gas processing facility for selectively providing liquefaction and regasification of the natural gas. The vessel also includes a containment structure for containing the liquefied natural gas during transport. The vessel may be a marine vessel or a barge vessel for transporting LNG over water, or a trailer vessel for transporting LNG over-the-road. A method for transporting LNG is also provided, that provides on-loading of natural gas onto a vessel, condensing the natural gas, storing the gas on the vessel in liquefied form, transporting the gas to an import terminal, vaporizing the gas, and off-loading the gas at the terminal.
Abstract:
Pipeline distribution network systems are provided for transporting pressurized liquefied natural gas at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about -123 °C (-190 °F) to about - 62 °C (-80 °F). Pipes and other components of the pipeline distribution network systems are constructed from an ultra-high strength, low alloy steel containing less than 9 wt.% nickel and having a tensile strength greater than 830 MPa (120 ksi) and a DBTT lower than about -73 °C (-100 °F) environ.
Abstract:
A container is provided for storing pressurized liquefied natural gas at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about - 123 °C (-190 °F) to about -62 °C (-80 °F). The container is constructed from an ultra-high strength, low alloy steel containing less than 9 wt.% nickel and having a tensile strength greater than 830 MPa (120 ksi) and a DBTT lower than about -73 °C (-100 °F).
Abstract:
PURPOSE: An article is provided which comprising at least one containment means comprising pressurized gas-filled microbubbles, the gas being controllably releasable on demand by fracturing the microbubbles. CONSTITUTION: An article(10) is a low density flexible carrier(13) which can be tacky or non-tacky, optionally comprising support(12) coated on both sides with a layer of adhesive(14), flexible carrier(13) being overcoated with gas-filled microbubbles(16). Gas-filled microbubbles(16) can be in a single layer(17) or in more than one layer represented by(17) and (19). When heated, carrier(13) may be tacky but at room temperature may be non-tacky. As shown by dotted lines(18), a possible fracturing means in the form of crusher rollers(not shown) can be used and, as the gap narrows between rollers(18,18), gas in hollow microbubbles(16) is released as the microbubble shells break under increasing compression and shear.
Abstract:
The present invention provides a heat insulation covering for a spherical storage tank such as an LNG tank or the like for storing an extremely low temperature liquid. The covering is constructed by using elongated panel-like heat insulating panels. A plurality of slit parts having a U-shaped cross section are formed along the longitudinal direction of a foam-resin heat insulating panel formed in an elongated panel-like configuration. In the slit part, a heat insulating material is inserted. The material has a sufficient expandability under extremely low temperatures. The heat insulating panel can be deformed along the curvature of the surface of the spherical tank. The heat insulation covering of the spherical tank is formed of the heat insulating panels which have an elongated configuration. With such a structure, only a few kinds of heat insulating panels need be prepared, which is favorable in terms of cost.
Abstract:
양상 부체식 시설(10)은, 선체(12)와 중간 매체식 기화기(16)를 구비한다. 중간 매체식 기화기(16)는, 해수를 인입하는 펌프(34)와, 펌프(34)에 의해 인입된 해수에 의해 중간 매체를 증발시키는 중간 매체 증발기(E1)와, 중간 매체 증발기(E1)에서 증발된 중간 매체에 의해 LNG를 기화시키는 LNG 증발기(E2)와, 중간 매체 증발기(E1)에서 증발된 중간 매체를 LNG 증발기(E2)로 유도하는 가스 배관(21)과, LNG 증발기(E2)에서 응축된 중간 매체를 중간 매체 증발기(E1)로 유도하는 액 배관(22)을 갖는다. LNG 증발기(E2)는 선체(12)의 갑판(12a)에 배치되고, 중간 매체 증발기(E1)는 갑판(12a)보다도 아래에 배치되며, 중간 매체는, 중간 매체 증발기(E1)와 LNG 증발기(E2) 사이를 자연 순환한다.