The present invention relates to a pressure-increasing unit (1) comprising first receiving means (2) for receiving a pipeline (4) conveying pressurized gas, at least one first pipeline (3) for further transferring the pressurized gas to applications utilizing it, and second receiving means (6) for receiving a second pipeline (5) conveying reduced-pressure gas returning from the applications. The present solution is characterized in that the receiving means (6) are connected with at least one pressure intensifier (7). This pressure intensifier, in turn, is connected to the first receiving means (2) receiving pressurized gas for transferring gas re-pressurized by a substitution means (8) back to the applications utilizing it.

The present invention relates to a pressure-increasing unit (1) comprising first receiving means (2) for receiving a pipeline (4) conveying pressurized gas, at least one first pipeline (3) for further transferring the pressurized gas to applications utilizing it, and second receiving means (6) for receiving a second pipeline (5) conveying reduced-pressure gas returning from the applications. The present solution is characterized in that the receiving means (6) are connected with at least one pressure intensifier (7). This pressure intensifier, in turn, is connected to the first receiving means (2) receiving pressurized gas for transferring gas re-pressurized by a substitution means (8) back to the applications utilizing it.

A system that can eliminate engine combustion emissions in addition to raw and fugitive methane emissions associated with a gas compressor package. The system may comprise an air system for starting and instrumentation air supply; electrically operated engine pre/post-lube pump, compressor pre-lube pump, and cooler louver actuators; compressor distance piece and pressure packing recovery system; blow-down recovery system; engine crankcase vent recovery system; a methane leak detection system; and an overall remote monitoring system.

A system that can eliminate engine combustion emissions in addition to raw and fugitive methane emissions associated with a gas compressor package. The system may comprise an air system for starting and instrumentation air supply; electrically operated engine pre/post-lube pump, compressor pre-lube pump, and cooler louver actuators; compressor distance piece and pressure packing recovery system; blow-down recovery system; engine crankcase vent recovery system; a methane leak detection system; and an overall remote monitoring system.

The invention relates to a backfeeding installation (30) which comprises: at least one stationary compressor (21) between a gas network (15) at a first pressure and a gas network (10) at a second pressure higher than the first pressure, and an automaton (33) for controlling the operation of each stationary compressor. The backfeeding installation also comprises: a distribution unit (31) for distributing gas from the gas network at the first pressure to each stationary compressor and to the gas inlet connector at the first pressure for at least one additional compressor (29, 45, 46); and a collection unit (32) for collecting gas from each stationary compressor and the gas outlet connector at the second pressure for each additional compressor. The automaton is configured to control the operation of each stationary compressor and of each additional compressor as a function of the compression capacity of the operational stationary and additional compressors.

The invention relates to a backfeeding installation (30) which comprises: at least one stationary compressor (21) between a gas network (15) at a first pressure and a gas network (10) at a second pressure higher than the first pressure, and an automaton (33) for controlling the operation of each stationary compressor. The backfeeding installation also comprises: a distribution unit (31) for distributing gas from the gas network at the first pressure to each stationary compressor and to the gas inlet connector at the first pressure for at least one additional compressor (29, 45, 46); and a collection unit (32) for collecting gas from each stationary compressor and the gas outlet connector at the second pressure for each additional compressor. The automaton is configured to control the operation of each stationary compressor and of each additional compressor as a function of the compression capacity of the operational stationary and additional compressors.

The present invention concerns a calculation method (1000) for the positioning of sensors for measuring an odorant gas in a natural gas network (2000), comprising the steps of: acquisition (1010) of data representing the physical state of the natural gas network (2000), simulation (1020) of the natural gas network (2000), calculation (1030) of the position of odorant gas sensors.

The present invention concerns a calculation method (1000) for the positioning of sensors for measuring an odorant gas in a natural gas network (2000), comprising the steps of: acquisition (1010) of data representing the physical state of the natural gas network (2000), simulation (1020) of the natural gas network (2000), calculation (1030) of the position of odorant gas sensors.

Current natural gas measurement and regulation systems are sensitive to loss of electrical power, which can cause brownouts and curtailment of power in the local area if power systems reliant on natural gas are downstream from the station. A system for regulating the flow of natural gas and for guaranteeing the flow of natural gas from a source to at least one specific flow line even when the system is not provided with electrical power may be described. Such a system may include at least one of each of: a low-pressure regulation system, a high-pressure regulation system, an inlet gas filter, a relief valve, a low select relay, a differential pressure pneumatic relay, a reset relay, a 5-way universal relay, an electromechanically operated valve, a first manual multi-way valve, a second manual multi-way valve, a high calibration valve, a low calibration valve, a filter, and/or a differential pressure measurement system.

Current natural gas measurement and regulation systems are sensitive to loss of electrical power, which can cause brownouts and curtailment of power in the local area if power systems reliant on natural gas are downstream from the station. A system for regulating the flow of natural gas and for guaranteeing the flow of natural gas from a source to at least one specific flow line even when the system is not provided with electrical power may be described. Such a system may include at least one of each of: a low-pressure regulation system, a high-pressure regulation system, an inlet gas filter, a relief valve, a low select relay, a differential pressure pneumatic relay, a reset relay, a 5-way universal relay, an electromechanically operated valve, a first manual multi-way valve, a second manual multi-way valve, a high calibration valve, a low calibration valve, a filter, and/or a differential pressure measurement system.