| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a solar heat collection system and a storage tank system, capable of improving a space factor.SOLUTION: A solar heat collection system 1 includes: a solar heat collector for heating a heat medium by the solar heat; an outer wall of an inner barrel portion 21a (part covered with an outer barrel portion 21b) exchanging heat between the heat medium heated by the solar heat collector and hot water; and a hot water storage tank 20 for storing the hot water heated by heat exchange by the outer wall. The hot water storage tank 20 has a substantially cylindrical barrel portion 21, and bowl-shaped first and second end plates 22, 23 closing both end opening portions of the substantially cylindrical barrel portion 21. In a case when the hot water storage tank 20 is installed in a state that an axial direction of the substantially cylindrical barrel portion 21 is directed in the vertical direction, a cistern 40 constituted to allow the heat medium to be introduced and discharged, and suppressing rise of an internal pressure in a heat medium circulation passage, is disposed at an upper part of the second end plate 23 positioned above the first end portion 22.</p> |
