| 摘要 |
<p>PURPOSE:To make it possible to efficiently generate oxygen bubbles having high oxygen dissolving property in water by forming a main body from a carbon material, into the pores of which nontoxic water-soluble compound is impregnated, in an oxygen blow device mainly used for a water tank of edible living fish. CONSTITUTION:A hollow carbon material 3 having high wettability for water and sea water W is used, and the material 3 whose pores are impregnated with nontoxic water-soluble compound at ambient temperature is connected to the end of a conduit 1 of plastics, etc., through a mouth piece, which is connected to an oxygen generating device, which is operated by chemical reaction, to constitute an oxygen blow device A. As a result, during the time at which the pressure of oxygen is high in the initial stage of start-up operation of the oxygen generating device, the water-soluble compound 1 partially blocks the pares, so that fine oxygen bubbles are generated. And as time passes, the compound is gradually dissolved into water and the pores of the material 3 are gradually opened so that fine bubbles are generated even if the oxygen pressure falls.</p> |
