摘要:
Disclosed is an improved analytical method for hydrogen filling stations for directly and accurately calculating the end-of-fill temperature in a hydrogen tank that, in turn, allows for improvements in the fill quantity while tending to reduce refueling time. The calculations involve calculation of a composite heat capacity value, MC, from a set of thermodynamic parameters drawn from both the tank system receiving the gas and the station supplying the gas. These thermodynamic parameters are utilized in a series of analytical equations to define a multi-step process by which target fill times, final temperatures and final pressures can be determined. The parameters can be communicated to the station directly from the vehicle or retrieved from a database accessible by the station. Because the method is based on direct measurements of actual thermodynamic conditions and quantified thermodynamic behavior, significantly improved tank filling results can be achieved.
摘要:
The invention refers to a module for filling bottles with liquid propane-butane mixture and basic compounds connected to auto - LPG station having a 5 m3 overground LPG tank and to a process of handling. The module according to the invention is made of an electronic device for bottles' weighting-correction provided with an electronical volume batching connected to the pump of the auto - LPG station by using a GEMÜ controlling valve, and of an emptying-correction device which makes the correction and empties the bottle in case of overfilling or in case of an error when a gas proofness test is made by using a manual compressor-pump. The process of handling the module according to the invention consists of opening the GEMÜ controlling valve through the command of filling and weighting device which allows the transport of a propane-butane mixture towards a filling pistol connected to a gas bottle; when finishing the filling, the weighting device will command the closing of the GEMÜ controlling valve.
摘要:
A portable liquid oxygen (PLOX) unit (30) and method of filling. The LOX unit includes a LOX container (32). An inlet line (40) communicates LOX from a LOX supply to an the LOX container, and an outlet line (54) communicates LOX from the LOX container ultimately for consumption by a user. A vent line (102) communicates the interior of the LOX container to ambient atmosphere. A vent valve is coupled to the vent line to selectively communicate the LOX container to the ambient atmosphere. An auto shutoff assembly (110) is associated with vent line to substantially block the vent line when the LOX in the LOX container reaches a predetermined level. A reset element associated with the auto shutoff assembly causes at least a portion of the auto shutoff assembly to unblock the vent line for subsequent filling.
摘要:
Apparatus for dispensing measured amounts of gas to balloons comprising: a housing defining a chamber (18, 94) for receiving measured amounts of gas, means for supplying measured amounts of gas to the chamber, and means for delivering measured amounts of gas from the chamber. The chamber typically comprises a gas source (2) in connection with an entrance valve (12, 82), the valve being located at the entrance to the chamber and being designed to be openable for a pre-set period, said period being in excess of the time necessary to allow measured amounts of pressurised gas to enter the chamber. A similar construction (20, 96) is formed at the exit of the chamber and thus permits the dispensation of measured amounts of gas for filling helium balloons.
摘要:
The invention is directed to a valve (10) for a gas tank (2), comprising a body (12) with a longitudinal axis to be mounted on an opening on a wall (43) of the gas tank (2), with a gas outlet port (14) and a gas refill port (20), a level gauge (18) with a pivoting float (46) for measuring the level of the liquid phase of the gas, an overfill protection device (22) with a pivoting float (26) for limiting refilling of the tank based on the level of the liquid phase of the gas. The pivoting float (46) of the level gauge pivots around a first axis (44) distant from the body (12), and the pivoting float of the overfill protection device is a distinct float (26) pivoting around a second axis (28) that is less distant from the body (12) than the first axis (44).
摘要:
Disclosed is an improved analytical method that can be utilized by hydrogen filling stations for directly and accurately calculating the end-of-fill temperature in a hydrogen tank that, in turn, allows for improvements in the fill quantity while tending to reduce refueling time. The calculations involve calculation of a composite heat capacity value, MC, from a set of thermodynamic parameters drawn from both the tank system receiving the gas and the station supplying the gas. These thermodynamic parameters are utilized in a series of simple analytical equations to define a multi-step process by which target fill times, final temperatures and final pressures can be determined. The parameters can be communicated to the station directly from the vehicle or retrieved from a database accessible by the station. Because the method is based on direct measurements of actual thermodynamic conditions and quantified thermodynamic behavior, significantly improved tank filling results can be achieved.
摘要:
In order to overcome the problems that earlier onboard fuel tanks and earlier methods for filling such onboard fuel tanks have experienced, the present invention proposes that the interior space of an onboard fuel tank (10) includes at least one of baffles (20), packing material(30) or compartments and that the onboard fuel tank (10) is arranged to be mounted at an angle within a vehicle.
摘要:
본 발명에 따른 압력과 체적을 이용한 압력용기의 충전량 측정 시스템은 압력용기의 체적과 최고 충전 압력 정보를 수집할 수 있는 압력용기 정보 획득 장치를 구비하며, 가스 저장탱크와 충전 노즐 사이에 가스라인으로 연결되는 제1, 2자동 밸브, 기준용기, 압력센서 및 온도센서를 구비하고, 상기 압력센서에서 검출된 압력과 온도센서에서 검출된 온도 및 가스연료 충전대상 압력용기의 기본 정보를 입력받아 공학적 계산에 의해 압력용기에 충전되는 가스연료의 충전량을 산출하고, 압력용기의 온도 및 체적변화량을 산출하여 충전량 보정 및 압력용기의 안전성을 판단하고 보정된 충전량을 금액으로 환산하는 제어부를 구비하며, 상기 제어부에서 산출한 정보를 제공받아 사용자에게 알려주는 표시부를 구비하는 발명이다.
摘要:
An adaptor assembly (12) is provided for a pressurized gas container (14) having an internally threaded outlet port (38) for normally receiving a service valve. The adaptor assembly (12) includes a housing (70) having a lower externally threaded mounting portion (71) for mating with the internally threaded outlet port (38) and a check valve (74) operably associated with the housing (70). The check valve (74) has a valve shuttle (106) for movement between a normally closed position to prevent the transfer of liquid and/or gas between the container (14) and an exterior device and an open position to permit the transfer. The shuttle (106) is movable toward the open position only when a fitting (42) of the exterior device is operably connected to the check valve (74). A liquid level sending unit (16) with an overfill protective device (66) is connected to the adaptor assembly (12). A liquid level indicator (76) is connected to the housing (70). The indicator (76) is responsive to movement of the sending unit (16).
摘要:
An improved apparatus and method for monitoring the levels of propane or other consumable liquid in remotely located storage tanks and coordinating delivery of liquid to those tanks, including an improved method of using the remote monitoring data to identify out-of-ordinary conditions at remote tanks, optimally schedule purchases or deliveries, improve safety, and more efficiently operate a propane dealership. More accurate and timely information concerning the status of customer tanks serves to improve operational efficiencies and increase safety. Data received from remote sensors can be collected and organized so that it is easily understood and utilized through the implementation of a user interface accessible via the Internet that allows the information to be presented in an efficient graphical and contextual fashion. Operational efficiencies can also be improved by calculating site-specific Degree-days and K-factors for each tank and by taking historical propane usage for each tank, weather conditions, and projected fuel usage into account.