| 摘要 |
PCT No. PCT/FR90/00414 Sec. 371 Date Feb. 13, 1991 Sec. 102(e) Date Feb. 13, 1991 PCT Filed Jun. 12, 1990 PCT Pub. No. WO90/15566 PCT Pub. Date Dec. 27, 1990.This invention relates to a central suction-cleaning installation with water flushing and double rinsing. This installation is characterized in that it contains water flush generating means consisting of a water intake at the bottom end (5) of the chamber (7) via a duct (25) linked to a source of pressurized water (20) and in which there are interposed an electrovalve (26) and a needle valve tap (27) controlled by a float (28) which is arranged inside the chamber, above a reserve of water (13), in that the chamber is further provided with a double rinsing system containing, on the one hand, a diffuser ring (31) directed at said reserve of water and, on the other, a spray diffuser (32) of a dust filter (35) placed between the suction plant (34) and said diffuser ring (31), whereby the ring and spray diffusers are linked to said source of pressurized water via a duct (29) which is provided with an electrovalve (30). This invention is useful for applications in central suction-cleaning.
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