Device for detecting a gas volume flow

Device for detecting a gas volume flow

  • CN 101,221,058 B
  • Filed: 01/08/2008
  • Issued: 04/17/2013
  • Est. Priority Date: 01/08/2007
  • Status: Active Grant
First Claim
Patent Images

1. for detection of the device of volumetric flow of gas, have flow sensor (60), it surrounds for the lumen of pilot gas volumetric flow rate (15,65), described device also has ultrasonic transmitter (16,34) and ultrasonic receiver, their respectively mutual spacing arrange, thereby ultrasonic receiver can be received by ultrasonic transmitter (16,34) ultrasound wave of launching and make ultrasound wave at least section'"'"'s section pass across lumen (15,65), it is characterized in thatFlow sensor (60) has the transmitter seat (76 for ultrasonic transmitter, 78) and be used for the receiver seat (74 of ultrasonic receiver, 80), and design transmitter seat (76,80) be used for and can be connected with ultrasonic transmitter dividually, and design receiver seat (74,80) be used for and be connected with ultrasonic receiver dividually, and device has with magnet (17,28) and dry-reed contact (19,32) connecting sensor (17,19;

  • 28,32), it is designed for detects transmitter seat (76,78) and/or receiver seat (74,80) magnetic field in the zone and detect non-contactly ultrasonic transmitter and the connection of the connection of transmitter seat (76,78) and/or ultrasonic receiver and receiver seat (74,80), and depend on that this connection produces the connection signal, sort signal has represented connection and it is exported at outgoing side.

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