DEVICE FOR FEEDING AND REGULATING FLOW OF ODORANT (VERSIONS) Russian patent published in 2009 - IPC G01F13/00 G05D7/00 

FIELD: physics; measurement.

SUBSTANCE: invention relates to devices for automatic regulation of flow of liquid and can be used in different industries where there is need for proportional feeding of an odorant into a gas. The outcome is achieved due to that, the device has a holding tank with odorant, inside of which there is a piston dosing pump with a plunger and a rod, placed inside a case with an opening. The actuator of the dosing pump is outside the holding tank, which has a top cover with an opening, through which the rod of the piston dosing pump passes. The holding pump has suction and blowing lines, with inlet and outlet channels. The suction line has a filter. The blowing line has a cavitation Venturi pipe, two storage tanks, an overflow pipe, throttle needle valves and two droppers. The gas pipe has a diaphragm and a differential pressure pickup. The piston dosing pump is connected by the blowing line to holding-dosing tanks for connection with the gas pipe, on which the flow measuring device is located. The suction line is connected to a storage container, filled with liquid odorant. In the second version of the device a sylphon is hermetically fitted on the cover of the holding tank from the inside. An actuating rod is attached to the top of the sylphon and a piston rod is attached at the bottom. Movement of the actuating rod is transmitted to the piston rod through the sylphon.

EFFECT: increased operational reliability of the device, easier servicing and prevention of leakage of odorant into the atmosphere.

6 cl, 2 dwg