摘要:
A corrosion protection device ("CPD") for inhibiting corrosion of an air compressor collection tank, and relieving the pressure in the tank when excessive condensate accumulates within the tank. A relief passage extends through the plug, and an anode seals the relief passage near the interior volume of the tank. The tank, plug and anode are all coupled in an electrically conductive relationship, and a galvanic circuit is formed when condensate collects near the bottom of the tank. The anode has a lower redox potential than steel, and is preferably made from magnesium. The anode loses electrons with less resistance than the steel tank, so the anode will be consumed through the oxidation process before the steel tank corrodes. Once the anode is consumed so that it no longer seals the relief passage, the condensate and air are discharged from the tank through the relief passage.
摘要:
Tank, especially fire extinguisher cylinder, provided with inner corrosion protection, having a metal tank, preferably a metal tank made of steel plate and an inner surface made of corrosion resistant material bordering the inner space of the tank, the inner surface made of corrosion resistant material is the inner surface of an insertion tank made of thermoplastic synthetic material, especially polyethylene terephthalate, which insertion tank seats to the inner surface of the metal tank and lines the mouth opening of the metal tank.
摘要:
The invention relates to a submersible system (1) comprising at least a first frame structure (2) for horizontal storage of tanks (3) with a positive buoyancy in water therein, wherein the first frame structure (1) has a negative buoyancy in water and comprises at least two storage positions (4) for supporting at least two tanks (3), wherein the storage positions (4) are arranged side by side in one level and each storage position comprises at least one cradle (4) for supporting a tank (3) from below, and wherein the system (1) comprises a fastening device (6,11) having a first and a second state, wherein: i. when in the first state, the fastening device (6,11) is configured to permit positioning of a tank (3) from above into the at least one cradle (4) and; ii. when in the second state, the fastening device (6,11) is configured to secure a tank (3) positioned in the at least one cradle (4) in a radial direction of the tank (3) preventing movement of the tank (3) in a vertical upward direction; and wherein a total buoyancy of the system (1) when submerged in water, when tanks (3) are positioned in each of the storage positions, is negative. The invention also relates to an associated method of storing tanks on a seabed using the submersible system (1).
摘要:
A storage plant for liquefied gas, in particular Liquefied Natural Gas (LNG), including at least one tank (1 ) with sidewalls (2) and bottom (3)/roof (7) for storage of the liquid and means such as pipes and pumps for circulation and/or filling and emptying of the tank. The storage tank (1 ) is provided in a cavern (4) in the ground, preferably in solid rock (6) below the ground water level (5), whereby an inert gas, preferably N2, is provided in the cavern (4) surrounding the tank and with a controllable pressure preferably kept slightly above the vapour pressure of the liquefied gas in the tank. The roof (7) may be made of a vertically, depending on the filling height of the LNG within the tank, movable closure (7). The closure (7) may in turn be made of one or more floating elements (8) forming a flexible floating "blanket", floating on the liquid in the tank, and provided with a seal (9) between the blanket and tank walls (2).
摘要:
L'invention concerne une membrane étanche pour une cuve de stockage de gaz liquéfié, ladite membrane étanche comportant, au moins dans une portion inférieure de ladite cuve, une nuance d'acier inoxydable austénitique présentant une composition chimique en masse comportant : 16,0 % ≤ Cr ≤ 28,0 %; 10,0 % ≤ Ni ≤ 27,0 %; et 2,0 % ≤ Mo ≤ 8,0 %.
摘要:
Tank, especially fire extinguisher cylinder, provided with inner corrosion protection, having a metal tank, preferably a metal tank made of steel plate and an inner surface made of corrosion resistant material bordering the inner space of the tank, the inner surface made of corrosion resistant material is the inner surface of an insertion tank made of thermoplastic synthetic material, especially polyethylene terephthalate, which insertion tank seats to the inner surface of the metal tank and lines the mouth opening of the metal tank.
摘要:
A method of passivating the interior surface of a gas storage vessel to protect the surface against corrosion. The interior surface of the vessel is first dehydrated and then evacuated. A silicon hydride gas is introduced into the vessel. The vessel and silicon hydride gas contained therein are heated and pressurized to decompose the gas. A layer of silicon is deposited on the interior surface of the vessel. The duration of the silicon depositing step is controlled to prevent the formation of silicon dust in the vessel. The vessel is then purged with an inert gas to remove the silicon hydride gas. The vessel is cycled through the silicon depositing step until the entire interior surface of the vessel is covered with a layer of silicon. The vessel is then evacuated and cooled to room temperature.
摘要:
A water heater tank anode support and or locator device for an anode provided in a water heater tank, the support device having an anode engaging portion to engage said anode, and a tank engaging formation for operatively engaging a base of the tank.
摘要:
The invention relates to an underwater storage installation for a cryogenic liquid. The inventive installation comprises a foundation base (14) which rests directly on the sea floor (16), an underwater cell (18) for storing the cryogenic liquid and cryogenic liquid-supply (22) and -discharge (24) conduits. The aforementioned storage cell (18) comprises a sealed outer chamber (40) and a vapour barrier (60) which is disposed inside the outer chamber (40) and which defines a watertight space. Moreover, a separation space (70) is disposed between the outer chamber (40) and the vapour barrier (60). The storage cell (18) also comprises spacers (80) which are disposed in said space (70) and which keep the chamber (40) and the vapour barrier (60) at a distance from one another. The invention can be used for the storage of liquefied natural gas.
摘要:
Methods of passivating a metal surface are described, the methods comprising the step of i exposing the metal surface ti a silicon-containing passivation material ii evacuating the metal surface, iii exposing the treated surface to a gas composition having a concentration of reactive gas that is greater than an intended reactive gas concentration of gas to be transported by the metal surface iv evacuating the metal surface to remove substantially all of the gas composition to enable maintenance of an increased shelf-life, low concentration reactive gas at an intended concentration and v exposing the metal surface to the reactive gas at the intended reactive gas concentration. Manufactured products, high stability fluids, and methods of making same are also described.