| 摘要 |
The system is designed for the detection of gas leakages. Itconsists of a flowmeter (1) for natural gas which is fitted on themain gasline in its high pression section before the diaphragm (2)and is connected to the input of the consumption corrector (3) ofthe natural gas the output of which is connected to the input of acontrolling electronic unit (4). Unit (4) is connected to anelectromagnetic distributor (5) to the inlets of which pipelines(6 & 7) are connected, pipeline (6) being connected to the gaspipeline before diaphragms (2). The outlets of the electromagneticdistributor (5) are connected by pipelines (8 & 9) to ametering-compressing unit (10) where pipeline (8) is connected tothe upper part of housing (18) of device (10), above membrane(19) and pipeline (9) - to the lower part of housing (18), undermembrane (19). Device (10) is connected by means of pipeline (11)to an intermediate odorant tank (14) with level indicator (14). Afilter for purifying the odorant (12) is fitted on pipeline (11),immediately after the outlet of the intermediate tank (13). In itsupper part the basic odorant tank (16) is connected by means ofpipeline (17) to the gas pipeline in its part after diaphragm (2).5 claims, 3 figures/!
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