ARRANGEMENT FOR MEASURING OF GAS CONSUMPTION Russian patent published in 2008 - IPC G01F1/34 

FIELD: invention refers to diaphragm type arrangements for measuring of gas consumption and may be used for measuring of gas consumption transported along the main and technological pipelines.

SUBSTANCE: arrangement has a body with a passing channel of a circular section with the radius R_o. In the passing channel there is a diaphragm with the passing opening r_o < R_o with admissible deviation from alignment [е] symmetrically to the end-butts of the body and perpendicularly to its axis. The deviation from the alignment is defined according to the formula [е]=Roε², where ε - admissible relative error of measuring of gas consumption caused with the deviation from the alignment of the passing opening of the diaphragm and the passing channel of the circular section. The difference of pressure from different sides of the diaphragm is measured with a differential manometer. Sockets of circular section and at least one removable socket installed from the side of the output of gas are connected with the body. Moreover the inner surfaces of the passing channel and the sockets of circular section are fulfilled with the method of boring for one set-up to the length more than 4 R_o in each direction from the average transversal section of the diaphragm.

EFFECT: increase of accuracy of measuring.

2 dwg