INSTALLATION FOR WATER AND FUEL EXTRACTION FROM SPENT MOTOR OIL Russian patent published in 2005 - IPC

FIELD: machine-building, automotive, and oil refining industries, rail transport, and agricultural sector.

SUBSTANCE: proposed installation has heat-insulating evaporator incorporating spent motor oil feeders and dewatered motor oil outlet pipe; condenser connected to evaporator and to vacuum pump; heater; tandem-connected transfer pump and heater communicating with spent motor oil feeder; installation also has tank holding original spent motor oil whose space communicates with suction pipe of gear-type transfer pump and through heated barometer tube, with dewatered motor oil outlet pipe; heater is made in the form of steam jacket of original spent motor oil tank; reheater is made in the form of tubular heat exchanger whose tube space communicates with delivery pipe of gear-type pump and tube-to-tube space, with heating steam supply; evaporator is made in the form of horizontal heated cylinder accommodating at its ends spent motor oil feeders in the form of nozzles with filtering barriers at inlet; disposed in central part of evaporator space against nozzles are oil jet deflectors whose concave surface faces nozzles; bottom part of evaporator is provided with dewatered motor oil collector provided with its outlet pipe and heated tube disposed between jet deflectors; upper end of heated tube carries oil spray trap and its bottom end is joined to condenser case enclosed by cooling jacket and accommodating cooling coil that passes through its interior along condenser axis cooling medium discharge pipe; condensed water outlet pipe running from condenser is connected to this water collecting tank communicating with vacuum pump; installation is also provided with additional heat-insulated and heated evaporator, condenser, heater, reheater, gear-type and vacuum pumps, and heated barometer tube, which are physically identical to main evaporator, condenser, heater, reheater, gear-type and vacuum pumps, heated barometer tube, and tank for collecting fuel-containing dewatered motor oil that communicates with original spent motor oil pipeline connected to delivery pipe of main gear-type pump; additional heater is made in the form of steam jacket of fuel-containing dewatered motor oil tank whose space communicates with suction pipe of additional gear-type pump; tube space of additional heater communicates with delivery pipe of additional gear-type pump and with nozzles of additional evaporator whose collector is designed to accumulate clean motor oil; additional heated barometer tube is connected to pipe delivering clean motor oil from collector and to fuel-containing dewatered oil tank; pipe designed for discharging condensed fuel from additional condenser communicates with oil collecting tank communicating with additional vacuum pump.

EFFECT: enhanced degree of cleaning spent motor oil from water and fuel; enhanced safety and economic efficiency of process.

1 cl, 3 dwg