配虹吸管水箱的沟槽式水冲厕所广泛地应用在工矿企业之中。这种水箱进水口一般采用连续供水。日耗水量达20～40吨(视水压和管径大小而定)。试验表明,在大多数情况下(一般指4～10个蹲位)没有必要连续不断地供水,特别是在夜间,完全可以停止供水。为此,我单位在节能月活动中,试制了一种沟槽式水冲厕所节水装置。在无水箱直接用供水管冲洗的厕所更为合适。该装置采用一个电磁阀和一个控制电路,使水箱间断供水,每隔半小时,供水15分钟(时间可调),夜间自动关闭。这样可由原来一天24小时供 Grooved water flush toilets equipped with siphon tanks are widely used in industrial and mining enterprises. This water tank inlet is generally used for continuous water supply. Daily water consumption amounts to 20 to 40 tons (depending on water pressure and pipe size). Tests have shown that in most cases (generally 4 to 10 niches), there is no need for continuous water supply, especially at night, and the water supply can be completely stopped. For this reason, in the energy-saving month event, our unit has trial-produced a water saving device with a grooved flushing toilet. Toilets that are flushed directly with a water supply pipe without tanks are more suitable. The device uses a solenoid valve and a control circuit to make the water tank discontinuously supply water, every 15 minutes, the water supply for 15 minutes (adjustable time), automatically closed at night. This can be used 24 hours a day