| 摘要 |
The invention relates to a method for the continuous use of a vacuumized water knockout circuit integrated with a contaminated hydraulic-oil reservoir, a tank (1). A continuous process is based on a vacuum pump (12) keeping both a treatment column (8) and the tank (1) vacuumized at up to typically 98 %, contaminated hydraulic oil being pumped via the pump (3) up from the lowermost point in the inclined tank (1) through a circulation filter to a heating element (6) into the treatment column (8), where the moisture is extracted from the oil. Controlled oil flow, temperature and underpressure make water vapour be pushed continuously towards the vacuum pump (12) through a vapour cooler (13) into a condensate trap (15) which is emptied automatically via a valve (17), while gases are continuously evacuated from the vacuum pump (12) via a gas filter (18). Continuous transport of vapour out of the treatment column (8) is ensured by air being supplied via an air filter (21) through a fixed nozzle (22), while a valve (23) controls and safeguards system functions by pressure reduction and this to an atmospheric state. |
