A kind of method of automatic gas control and device

A kind of method of automatic gas control and device

  • CN 101,759,024 B
  • Filed: 02/27/2009
  • Issued: 04/06/2016
  • Est. Priority Date: 10/13/2008
  • Status: Active Grant
First Claim
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1. a method for automatic gas control, is characterized in that,1), when needing to add negative pressure in pipeline, air suctiton ventilator starts, and valve controls transmission pipeline is airtight by negative-pressure air-flow;

  • Transmitter by air stream transportation to transmission pipeline;

    When transmitter is beyond bypass district, be subject to pulling of the air-flow of air suctiton ventilator;

    2) when, transmitter crosses the interface of bypass duct and transmission pipeline, bypass duct imports barometric pressure, air-flow power because of transmission pipeline is bypassed pipeline and rushes down, and the air-flow power acted on transmitter reduces, and slows, the barometric pressure that described bypass duct imports imports near described valve, described valve reduces by adsorption affinity, when transmitter does not arrive described valve location, and described valve open, transmitter can not bump against described valve, and level and smooth through described valve place.

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