Thermally stratified heat storage tank and the terminal structure of the water supply or drainage channel of this tank

摘要

PPROBLEM TO BE SOLVED: To provide a terminal structure of a water supplying/draining flow channel of a thermal stratification type heat storage tank capable of realizing the flow of sufficiently-low flow velocity and high uniformity in flow velocity distribution. PSOLUTION: This terminal structure of the water supplying/draining flow channel formed on a branch pipe extending from a main pipe, is composed of a tip portion 10a of at least one branch pipe 10 and a head member 14 connected with the tip portion of the branch pipe, and the head member 14 is composed of a hollow body connected with the tip portion 10a of the branch pipe 10 at one of its upper and lower portions, and provided with an opening portion 28 at the other portion, and includes a water channel 20 from the tip portion 10a to the opening portion 28. The water channel 20 is composed of a single flow channel excluding the neighborhood of the tip portion 10a of the branch pipe, and formed while an area of the flow channel is minimum at a connecting portion with the tip of the branch pipe and maximum at the opening portion 28, and a speed reducing means 34 by combination of pressure loss by enlargement e1 of the flow channel area and frictional resistance in accompany with bending c1 of the flow channel, is disposed in the water channel 20. PCOPYRIGHT: (C)2009,JPO&INPIT