| 摘要 |
<p>PURPOSE:To save energy by mixing high temperature water to temperature water into intermediate temperature water so that hot water can be supplied at a set temperature, and constantly using in priority solar heat and waste heat. CONSTITUTION:Passages from four directions intercrossing at right angles with each other are provided in a housing 30 of a flow quantity adjusting valve 19 using a solar heat hot water apparatus 14 as an intermediate temperature water heat source, and the passage 31 is connected to an intermediate temperature water circuit 20, the passage 32 to a high temperature water circuit 23, and the passage 34 to a supply hot water r oute 25. At the joint of respective passages, a cylindrical adjusting plug 35 opened in the direction of the passage 34 is rotatably accommodated, and a through hole 36 is formed in the diametral direction of the plug 35, whereby the passage area coincident with passages 31, 32 and 33 undergoes change responsive to the rotation of the plug 35. The plug 35 rotates with a shaft 37. The rotation of the plug 35 in the clockwise direction lowers the temperature of supply water, while the counterclockwise rotation thereof increases the temperature of supply water. Upon this occasion, the intermediate temperature water is provided at an intermediate position between the high temperature water and ordinary water so that the intermediate temperature water is used in priority , and hence wasteful consumption of high temperature water can be avoided.</p> |
