瑞典的赫德罗巴公司(Hederolba)最近推出了一种清洗旅客列车内部的湿法真空吸尘装置。这种吸尘装置的最大特点是吸尘软管同时具备吸尘和喷撒洗涤剂两种功能。使用这种吸尘装置时,首先在待清洗的车内表面上喷撒洗涤剂,表面上的灰尘和污物被洗涤剂溶解后,即连同洗涤剂一起被吸入污水罐内。喷撒溶液和吸尘的过程均通过吸尘软管操纵手柄上 Hederolba in Sweden recently introduced a wet vacuum cleaner that cleans the interior of passenger trains. The biggest feature of this vacuum cleaner suction hose is equipped with both vacuum and detergent spray two functions. When using such a vacuum cleaner, detergent is first sprayed on the interior surface of the vehicle to be cleaned, and after the surface dust and dirt are dissolved by the detergent, the detergent is sucked into the waste water tank together with the detergent. Spray the solution and vacuum the process through the suction hose handle