SYSTEM OF FLUID AND GAS LEAKS CONTROL IN BALL COCKS OF MAINS Russian patent published in 2010 - IPC F17D5/02 G01M3/28 G01F1/708 F16K37/00 

FIELD: machine building.

SUBSTANCE: invention can be implemented for testing multi-purpose accessories (MPA) of main (M). The essence of the invention is as follows: a draining tube (DT) is connected to inter-cock cavity of the ball cock and to pipelines of high and low pressure (HPP and LPP) via pulse tubes of high and low pressure (HPPT and LPPT). An electro-magnet valves (EMV) are installed in the HPPT and LPPT, while a reverse flow metre is installed in the DT. The reverse flow metre and outlets of pulse tubes are communicated with atmosphere via a pneumatic crosspiece. Controlled inputs of the EMV are coupled to the output of the server via an analogue-digital converter. The output of the flow metre is connected to the input of the server via the analogue-digital converter. The system facilitates measuring gas leaks through the first and the second sealing down gas stream at the ball cock of the MPA by means of the reverse flow metre under the automatic mode.

EFFECT: upgraded accuracy of measurements of gas leaks and automation of measuring process.

5 cl, 3 dwg