Choke preventing method and device for pressure measurement

Choke preventing method and device for pressure measurement

  • CN 1,252,523 B
  • Filed: 12/06/1999
  • Issued: 11/14/2012
  • Est. Priority Date: 12/06/1999
  • Status: Active Grant
First Claim
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1. anti-clogging pressure measurement method may further comprise the steps:

  • Measuring fairlead with one passes in the stove of treating pressure measurement;

    The outer end of this measurement fairlead is connected the sample valve with thief hole;

    The gas of adjusting the thief hole place of this sample valve passes through the cross section, thereby regulates the flow velocity of this valve thief hole place gas of flowing through, and makes the gas flow rate v of this gas through this cross section 1Satisfy relational expression with the gas flow rate v2 of the section that passes to this measurement fairlead in the stove The pressure of measuring sampling spot is furnace pressure, and wherein ξ

    measures the pipe resistance coefficient of fairlead for this.

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