FIELD: transport.
SUBSTANCE: proposed preheater comprises hydraulic pump articulated with heat engine and gas heat carrier circulation circuit. Proposed device incorporates heat-isolated chamber and flexible heat-isolated metal hose communicated with inlet branch pipe of heat-isolated chamber mounted for heating interval via special guides outside of hydraulic tank bottom nearby hydraulic pump suction branch pipe. In operation, heat-isolated chamber discharge branch pipe is communicated by similar metal hose with atmosphere. Proposed method of cleaning consists in intermittent feed of preset amount of finely dispersed NaO2 agent into heat-isolated chamber to oxidise (burn out) deposited solid particle after prestarting heater withdrawn from the machine.
EFFECT: simplified design, higher efficiency at negative ambient temperatures.
3 cl, 2 dwg
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