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日本在饲养鳗的池中发明了一种新的装置,这种装置能使池中的水循环加温,又能同时补充氧气。其工作原理见附图。即由水泵将池中水由底部抽出,滤去污物,进入锅炉加热,热水再通入鱼池中,在进入鱼池时,混入空气,再由管道喷出。据报导这种装置设备费较低,约为过去同类装置的1/2,但效率却反而提高。采用这种装置,鱼池中水温均匀,循环用池水污物能集积排除,能补充多量氧气,防止鱼池泛塘。本装置已为日本发明协会推奖。
Japan has invented a new device in the reared eel pool, which is capable of warming the water in the pool while replenishing oxygen. The working principle of the photos. The water from the pump will be drawn from the bottom of the pool, filter out the dirt, into the boiler heating, hot water and then into the fish pond, into the fish pond, mixed with air, and then by the pipe. It is reported that this device has a lower equipment cost, which is about one-half of that of similar devices in the past, but the efficiency has actually increased. With this device, the water temperature in the fish pond is even, and the circulating water and sewage can accumulate and eliminate the water and can replenish a large amount of oxygen to prevent the fish pond from pan-pond. The device has been Japan Invention Society Award.