The Boc Group, Inc.

Igor Shedletsky

Yaping Lu

André Micke

Andr&eacute; Micke

An apparatus and method for recovering and recycling a coolant gas from a heat exchanger. The apparatus comprises a coolant gas recovery section, and analysis section, and a coolant gas blending section. The coolant gas recovery section recovers a coolant gas containing contaminants from the heat exchanger. The analysis section monitors a condition of an analysis portion of the recovered coolant gas. The coolant gas blending section operates to produce, based on the condition of the recovered coolant gas monitored by the analysis section, a blend coolant gas comprising a virgin coolant gas and a reclaimed coolant gas that comprises at least a portion of the recovered coolant gas. The blend coolant gas has a predetermined contaminant concentration and is recycled into the heat exchanger. Thus, the coolant gas is recovered from, and recycled to, the heat exchanger at the predetermined contaminant concentration without using a purification device.

Apparatus and method for recovery and recycle of optical fiber coolant gas

An apparatus and method for recovering and recycling a tracer gas from a leak testing process. The apparatus comprises a leak testing section, a gas recovery/blending section, and a gas analysis/recycle section. The leak testing section operates to perform various leak testing functions and comprises a plurality of test parts, a plurality of gas supply valves, and a plurality of gas discharge valves. The gas recovery/blending section functions to blend gases together and comprises a virgin gas storage means associated with a flow control means and a recovered gas storage means having a pressure analysis means and recovered gas analysis means. The gas analysis/recycle section operates to analyze, store, and deliver a tracer gas and comprises compressor, blended gas storage means, blended gas analysis means, pressure analysis/adjustment means, and temperature analysis means. In preferred embodiments, the gas analysis/recycle section also includes a vent, compressor bypass loop, and a recycled gas analysis means.

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Staten Island, NY, United States of America

Igor Shedletsky