Portable fueling system

A portable fuel gas system comprising:

• a portable enclosure;
• a processor;
• a fuel gas supply manifold;
• a throttle in fluid communication with the fuel gas supply manifold, wherein the fuel gas supply manifold includes a first pressure zone and a second pressure zone separated from one another by the throttle;
• a fuel gas shutoff valve in the first pressure zone, in electrical communication with the processor and operative to control a flow of a fuel gas in the fuel gas supply manifold;
• a vent valve in fluid communication with the fuel gas supply manifold and in electrical communication with the processor;
• and
• a pressure transmitter in fluid communication with the fuel gas supply manifold and in electrical communication with the processor, wherein:
• the fuel gas supply manifold, the throttle, the vent valve, the pressure transmitter, and the fuel gas shutoff valve are disposed within the portable enclosure,
• the processor is configured to receive a user input and responsive to the user input the processor is configured to perform a leak check sequence on the fuel gas supply manifold comprising:
• supplying a first quantity of the fuel gas to the fuel gas supply manifold by opening the fuel gas shutoff valve;
• monitoring at least one of an elapsed time since the opening of the fuel gas shutoff valve or, via the pressure transmitter, the pressure in the fuel gas supply manifold;
• based on at least one of the elapsed time or the pressure reaching a threshold, closing the fuel gas shutoff valve;
• monitoring, via the pressure transmitter, a change in the pressure in the fuel gas supply manifold;
• based on the change in the pressure in the fuel gas supply manifold issuing an alarm, or supplying a second quantity of the fuel gas to a fuel gas storage vessel.

A computer-implemented method of supplying a fuel gas to a storage vessel with a portable fuel gas system, wherein the portable fuel gas system comprises:

• a portable enclosure;
• a processor;
• a fuel gas supply manifold;
• a throttle in fluid communication with the fuel gas supply manifold, wherein the fuel gas supply manifold includes a first pressure zone and a second pressure zone separated from one another by the throttle;
• a fuel gas shutoff valve in the first pressure zone, in electrical communication with the processor and operative to control a flow of a fuel gas in the fuel gas supply manifold;
• a vent valve in fluid communication with the fuel gas supply manifold and in electrical communication with the processor;
• a pressure transmitter in fluid communication with the fuel gas supply manifold and in electrical communication with the processor, wherein the fuel gas supply manifold, the throttle, the vent valve, and the fuel gas shutoff valve are disposed within the portable enclosure;
• and
• a non-transitory computer-readable storage medium, the computer-readable storage medium including instructions that when executed by the processor, cause the processor to:
• perform a purification sequence on the fuel gas supply manifold comprising:
• supplying a first quantity of the fuel gas to the fuel gas supply manifold by opening the fuel gas shutoff valve;
• monitoring at least one of a first elapsed time since the opening of the fuel gas shutoff valve or, via the pressure transmitter, a pressure in the fuel gas supply manifold;
• based on at least one of the first elapsed time or the pressure reaching a first threshold, closing the fuel gas shutoff valve;
• monitoring a second elapsed time since the closing of the fuel gas shutoff valve;
• based on the second elapsed time reaching a second threshold, venting at least a portion of the first quantity of the fuel gas by opening the vent valve;
• monitoring at least one of a third elapsed time since the opening of the vent valve or, via the pressure transmitter, the pressure in the fuel gas supply manifold.