| 摘要 |
<p>The invention relates to a suction cleaning installation with vacuum intake means for buildings having many rooms, meant to replace the mobile vacuum cleaner, both in dwellings and in public buildings, such as hotels, administrative institutions, theatre or cinema halls, etc., where the volume of dust to be cleaned is very large. According to the invention, the installation comprises a suction apparatus (A) communicating by means of some conduits (40, 41, 42) of various cross sections, with some vacuum intake means (43) mounted in each room of the building, in which a flexible hose is mounted, a vacuum tank (B) being located in the front part of the suction apparatus (A), said tank comprising a cylinder-shaped metal vessel (11) provided at one end with a first flange (12) whereon there are mounted: a valve (13) which is connected to the suction apparatus (A) and is automatically opened when the depression therein is lower than the one reached by the suction apparatus, a vacuum relay (15) for driving the electric motor of the suction apparatus, and a pressure-vacuum gauge (16) for measuring the pressure in the tank (B), while at the other end it is provided with a second flange (14) for coupling the apparatus to a wet filter (C) made of a tightly closed metal casing (17) provided with a spherical tap (24) connecting it with the vacuum tank (B) and with another tap (25) to couple the same to a coarse dry filter (D) which is connected to the vacuum intake means (43) through some conduits (40, 41, 42).</p> |
