FIELD: transport.
SUBSTANCE: these plant and method are intended for injection of chemical agent into pipeline with the help of ejector. This device comprises ejector and gas and chemical agent mains and air cylinder accommodating axle to slide over air cylinder with two spaced apart piston fitted on one end of said axle while ejector gate is fitted on opposite end. Low-pressure gas connection means is fitted at ejector. Air cylinder side surface accommodates high-pressure feed lines and chemical agent feed line connected via air valve. Proposed method comprises chemical agent and gas feed into ejector and gas feed via four-way valve into air cylinder.
EFFECT: simplified injection of chemical agent.
2 cl, 1 dwg
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