| 摘要 |
<p>Tank cleaning equipment (20) according to the invention is mounted in a housing (18) over the opening (26) to a tank (5) and having a valve (16, 17) for the closing of the opening (26). Inside the housing (18) there is suspended a cleaning head (1) with movable nozzles (2) which are connected to a telescopic supply pipe (3) or an extendable hose (4) through which cleaning fluid under pressure can be conveyed to the nozzles (2). The extending of the fluid supply pipe (3, 4) is controlled by a drum drive (10) with a wire (7) which, over rollers (9), is connected (8) to the cleaning head (1), whereby the whole of the cleaning aggregate can be lowered into the tank (5) and housed completely in the housing (18) when cleaning is not being carried out. The equipement can thus be made very compact and is hereby well suited for permanent mounting on tanks, e.g. on tanker vessels, and the operation can be made automatic and independant of manual control and handling. This results in a more safe and environment-friendly cleaning as compared with the hitherto-known stationary installations in tanks.</p> |
