Drawdown compressor assembly
AssigneeWashington Gas Light Company
InventorAdam Stickl
Life of this patent
Estimating the term…
Abstract
A drawdown compressor assembly for recovering natural gas from a gas line includes a first tubing configured for connection to a first pipe of the gas line at a one end of the first tubing. A compressor is attached to an opposite end of the first tubing and configured to draw natural gas from the first pipe through the first tubing and into the compressor for being compressed by the compressor. A second tubing is connected to the compressor at one end of the second tubing and configured for connection to a second pipe of the gas line at an opposite end of the second tubing. Activation of the compressor draws the natural gas from the first pipe through the first tubing and delivers compressed natural gas to the second pipe through the second tubing.
Claims20
A drawdown compressor assembly for recovering natural gas from a gas line, the assembly comprising:
- a first tubing configured for connection to a first pipe of the gas line at a one end of the first tubing;
- a compressor attached to an opposite end of the first tubing and configured to draw natural gas from the first pipe through the first tubing and into the compressor for being compressed by the compressor;
- and
- a second tubing connected to the compressor at one end of the second tubing and configured for connection to a second pipe of the gas line at an opposite end of the second tubing, activation of the compressor drawing the natural gas from the first pipe through the first tubing when the first tubing is connected to the first pipe and delivering compressed natural gas to the second pipe through the second tubing when the second tubing is connected to the second pipe, wherein the first and second pipes are part of the same gas line, the gas line having a passage extending from a first location upstream from a connection between the first pipe and the first tubing to a second location downstream from a connection between the second pipe and the second tubing such that gas may flow from the first location to the second location without passing the compressor.
A process of recovering natural gas from a gas line comprising:
- drawing natural gas from a first pipe of the gas line through a first tubing;
- compressing the natural gas with a compressor attached to the first tubing at an inlet of the compressor;
- and
- delivering the compressed natural gas to a second pipe of the gas line through a second tubing connected to an outlet of the compressor, wherein the first and second pipes are part of the same gas line, the gas line having a passage extending from a first location upstream from a connection between the first pipe and the first tubing to a second location downstream from a connection between the second pipe and the second tubing such that gas may flow from the first location to the second location without passing the compressor.
A drawdown compressor assembly for recovering natural gas from a gas line, the assembly comprising:
- a first tubing configured for connection to a first pipe of the gas line at a one end of the first tubing;
- a compressor attached to an opposite end of the first tubing and configured to draw natural gas from the first pipe through the first tubing and into the compressor for being compressed by the compressor;
- a second tubing connected to the compressor at one end of the second tubing and configured for connection to a second pipe of the gas line at an opposite end of the second tubing, activation of the compressor drawing the natural gas from the first pipe through the first tubing when the first tubing is connected to the first pipe and delivering compressed natural gas to the second pipe through the second tubing when the second tubing is connected to the second pipe;
- a regulator disposed along the first tubing and configured to regulate the pressure of the natural gas within the first tubing to within a predetermined range;
- and
- bypass tubing extending between sections of the first tubing, and a bypass valve disposed along the bypass tubing, the bypass tubing allowing the natural gas in the first tubing to flow around the regulator to the compressor when the bypass valve is open.
A drawdown compressor assembly for recovering natural gas from a gas line, the assembly comprising:
- a first tubing configured for connection to a first pipe of the gas line at a one end of the first tubing;
- a compressor attached to an opposite end of the first tubing and configured to draw natural gas from the first pipe through the first tubing and into the compressor for being compressed by the compressor;
- a second tubing connected to the compressor at one end of the second tubing and configured for connection to a second pipe of the gas line at an opposite end of the second tubing, activation of the compressor drawing the natural gas from the first pipe through the first tubing when the first tubing is connected to the first pipe and delivering compressed natural gas to the second pipe through the second tubing when the second tubing is connected to the second pipe;
- and
- a manual unloading valve disposed between the first and second tubing and configured to redirect gas flow from an outlet of the compressor back to an inlet of the compressor to short cycle the compressor for facilitating starting the compressor.
Dependencies are inferred from the claim text.