An excurrent circuit 18 is connected from the three-way valve 17 to the lower portion of the hot water storage tank 7. 三方弁17から分岐して貯湯槽7下部に出水回路18を接続する。 - 特許庁
THe three-way valve 17 is switched to allow the hot water supply circuit 11 to communication with the excurrent circuit 18 according to a detection signal in a freezing water supply temperature detector 13, and a low-temperature water is guided to the lower portion of the hot water storage tank 7 by the excurrent circuit 18, thus performing the freezing prevention operation of a water circuit. 凍結給水温度検知器13の検知信号により給湯回路11と出水回路18を連通させる如く三方弁17を切り換えて、出水回路18で低温水を貯湯槽7下部に導き、水回路の凍結防止運転を行う。 - 特許庁
This water-purifying device D of a culture pond 1 comprises a water-receiving tank 2, a decoloration tank 3, a filtration tank 10, a precipitation tank 8, a pair of electrodes 4, 4, a direct electric source (not drawn) for supplying an electric current to the electrodes 4, 4, an incurrent pipe 6, a circulation pump 7, and an excurrent pipe 12. 養殖池1の水浄化装置Dは、水収納槽2、脱色槽3、濾過槽10、沈殿槽8、一組の電極4・4、電極4・4に電流を供給するための直流電源(図示略)、流入管6、循環ポンプ7、流出管12を備えてなる。 - 特許庁