| 摘要 |
<p>A protein skimmer for use in purification of water by culture of fish or other water organisms in a reservoir, aquarium or ( 2 ) with a circulation system comprising one or more discharge tubes ( 4 ) for water from the reservoir ( 2 ) to a pump ( 5 ) for circulation of the water, and a return tube ( 3 ) for water directly or indirectly from the pump ( 5 ) to the reservoir ( 2 ) The return tube ( 3 ) comprises at least one generally horizontal, straight portion ( 90 ) having one or more upwardly directed side branches ( 9 ) which has an opening ( 91 ) leading to air, in which the generally horizontal straight portion ( 90 ) is arranged for rapid passage of the water past. the side branch ( 9 ) and to have the water level at or above the intersection of the side branch ( 9 ) with the straight portion ( 90 ), and in which the side branch ( 9 ) is directed rearward relative to the direction of the water flow in the straight portion ( 90 ), and forms a first angle (v) with between 0° and about 90° with the straight portion ( 90 ).</p> |
