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Extractor to Remove Hydrogen Gas From Water Aspirated Dew Point Meter

IP.com Disclosure Number: IPCOM000081133D
Original Publication Date: 1974-Apr-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Young, WS: AUTHOR

Abstract

In using hydrogen (H(2) ) gas furnaces at high temperatures and high dew points, the determination and control of dew point is very important. Dew-point instrumentation has the problem of being able to take a sample out of the furnace and to analyze it, without losing any of the water in the sample to condensation. This presents problems in pumping the sample at high temperatures (above the dew point). One type of instrumentation uses water aspiration to draw the H(2) sample through the instrument. The water is piped to a sanitary drain after use and takes the sample gas with it. In the case of H(2), this creates a safety hazard, due to H(2) bubbling out of the water and collecting in the sewer.

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Extractor to Remove Hydrogen Gas From Water Aspirated Dew Point Meter

In using hydrogen (H(2) ) gas furnaces at high temperatures and high dew points, the determination and control of dew point is very important. Dew-point instrumentation has the problem of being able to take a sample out of the furnace and to analyze it, without losing any of the water in the sample to condensation. This presents problems in pumping the sample at high temperatures (above the dew point). One type of instrumentation uses water aspiration to draw the H(2) sample through the instrument. The water is piped to a sanitary drain after use and takes the sample gas with it. In the case of H(2), this creates a safety hazard, due to H(2) bubbling out of the water and collecting in the sewer.

The present apparatus allows safe removal of the H(2) before it goes into the drain. The apparatus uses a fountain effect to extract the H(2) from the water. After passing through the dew-point meter, the water is forced out of a nozzle 1 mounted vertically near the bottom of a burnoff stack 2. The H(2), being lighter than air, moves up the burn-off stack 2, drawing fresh air in below it and is ignited at the top of the stack by an electric coil 3. The hot gases (now H(2)O and air) are carried away by an exhaust stack after burning and the water falls down the burn-off stack 2, is collected in the basin 4 below and passes into the drain 5.

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