Solar heat collector

Abstract

A solar heat collector includes a heat collecting tube that includes a heating-medium circulating tube through which a heating medium circulates; a glass tube that covers an outer peripheral surface of the heating-medium circulating tube and forms an annular space between the glass tube and the heating-medium circulating tube; a flange disposed on the heating-medium circulating tube; a thermal-expansion-difference absorbing member that is disposed between the flange and the glass tube and absorbs a thermal-expansion difference between the heating-medium circulating tube and the glass tube; a getter member that adsorbs a gas that exists within the annular space; and a getter holding portion that accommodates and holds the getter member. The getter holding portion includes: a first accommodating member; and a second accommodating member that is aligned with the first accommodating member side by side in an axial direction or a radial direction of the heat collecting tube.

Dependencies are inferred from the claim text.