A method and a control arrangement for determining the status of a primary fluid tank or one or more secondary fluid tanks, each of the fluid tanks being arranged to contain a fluid or a mixture of fluids available in liquefied form and vaporised form and be connected to a second pressurized fluid conduit arrangement. The control arrangement determines a pressure drop (?p) associated with the fluid flow through the second pressurized fluid conduit arrangement. When the pressure drop (?p) exceeds a threshold, the control arrangement blocks the fluid flow from one of the fluid tanks to the second pressurized fluid conduit arrangement. Based on a subsequently determined pressure drop (?p), the control arrangement determines whether said one of the primary and secondary fluid tanks is empty of liquefied fluid.

Disclosed in the present invention is a system and method for supplying acetylene to an apparatus using acetylene, the system having at least one acetylene storage apparatus and an acetylene content analysis apparatus. The system and method disclosed in the present invention can utilize the capacity of an acetylene cylinder to a higher degree; before the solvent impurity concentration in acetylene gas reaches a level where it is no longer suitable, a more accurate understanding of the usable acetylene amount in the acetylene storage apparatus can be gained through detection, thereby reducing the number of times that the acetylene storage apparatus is refilled and replaced, and lowering the user's total costs.

A gas supply system (2) includes a compressor unit (21), an accumulator unit (23), a pre-cooling system (24) and a housing (4). In the gas supply system (2), the compressor unit (21) is vertically arranged and the pre-cooling system (24) is arranged above the accumulator unit (23) in the housing (4). The compressor unit (21) and the accumulator unit (23) are covered by one rectangular parallelepiped housing (4).

A dispensing assembly for a pressure dispense package includes a connector having separate and distinct liquid and extraction conduits, and having a pressurization gas conduit. A liner fitment adapter may include a longitudinal bore to receive a probe portion of a connector defining a liquid extraction conduit, and may include a lateral bore to enable removal of gas.

Insertion of a connector into a dispensing assembly simultaneously makes fluidic connections between (a) a gas extraction conduit and a dispensing volume; (b) a liquid extraction conduit and the dispensing volume, and (c) a pressurization gas conduit and a space to be pressurized within a pressure dispense vessel.

A method of preventing cross-contamination comprising providing a first tank having standard thread fittings, providing a second tank having reverse thread fittings, storing LPG in the second tank, and storing anhydrous ammonia in the first tank.

A gas delivery system including: a feeder for feeding a gas to a tank; a pressure storage container unit which has a plurality of pressure storage containers, and sends out the gas to the feeder; a gas supply unit; and a controller. The controller implements a storing operation that a specified pressure storage among the plurality of pressure storage containers is supplied with the gas until a pressure of the specified pressure storage container reaches a reference pressure or greater, after finish of a delivery of the gas to one tank carrier, and a sending operation that the gas is sent out from another pressure storage container except the specified pressure storage container to the feeder, and then sent out from the specified pressure storage container to the feeder on a receipt of a shift indication from the feeder, at a delivery of the gas to a subsequent tank carrier.

A bunkering vessel according to the present invention is for loading a liquefied gas to and unloading a liquefied gas from a liquefied gas storage tank of a target, and it includes a bunkering tank storing a liquefied gas; a manifold provided at a bunkering station of the bunkering vessel to flow in a liquefied gas to and flow out a liquefied gas from the bunkering vessel; a liquefied gas transfer line connecting the bunkering tank and the manifold to flow a liquefied gas; and a dry gas supply portion producing a dry gas, and the dry gas supply portion supplies a dry gas to the liquefied gas storage tank through the manifold before loading a liquefied gas to the liquefied gas storage tank to remove moisture inside the liquefied gas storage tank.

A multi-stage gas compression, storage and distribution system utilizing a hydrocarbon gas from a municipal gaseous supply line in a manner that does not affect an operational integrity of said municipal gaseous supply line includes an inlet line fluidly in fluid communication with a supply of hydrocarbon gas at a first pressure, a first compression unit configured to compress the hydrocarbon gas from the inlet line to a second pressure, a first storage vessel configured to receive the hydrocarbon gas from the first compression unit for storage at the second pressure, a second compression unit configured to compress the hydrocarbon gas from the first storage vessel to a third pressure, and a second storage vessel configured to receive the hydrocarbon gas from the second compression unit for storage at the third pressure.

A fuel management module for use with a CNG fuel system for a vehicle includes a housing configured to be connected to the vehicle and a number of connections, receptacles, and controls associated with the module. A defueling receptacle may be positioned on the front panel of the housing, for defueling a fuel tank of the vehicle. A defueling control valve may be positioned on the front panel of the housing for controlling operation of the defueling receptacle, allowing for selective defueling. One or more high pressure connections may be accessible on the housing and configured for connection to one or more separate fuel tanks in a plug and play configuration. A plurality of filling connections may be accessible on the housing for filling the fuel tank(s). A low pressure fuel output connection may be positioned on the back panel of the housing to provide fuel output from the high pressure connections to the engine.

The invention discloses a multi-tank methanol-water mixture storage system of a fuel cell vehicle, comprising a main accommodating tank, multiple explosion-proof methanol-water mixture storage tank, bodies are fixedly provided in the main accommodating tank, and the explosion-proof methanol-water mixture storage tank bodies are connected with each other through a delivery channel provided, with a delivery pump; each explosion-proof methanol-water mixture storage tank body is provided with a methanol inlet, a methanol outlet and a vent valve, and all the methanol inlets are connected to a methanol inlet assembly disposed on the main accommodating tank through a liquid path pipeline; the vent valve is disposed on the methanol inlet. The methanol-water mixture storage system of the invention is flameproof and explosion-proof, and does not explode in dangerous situations such as traffic collisions, rollover accidents or military attacks of bullets and bombs, thereby ensuring the safety of people and property on vehicles.