Patent ID: 9032625
Filing Date: 2015-05-19
Classification: F24S,Y02E,Y10T

Abstract:
1. A method for producing a solar power receiving tube comprising an outer glass tube, an inner metal absorber tube through which the heat-transfer fluid flows, and an intermediate area in which a vacuum is produced, the method comprising the following steps: producing of the inner metal absorber tube; producing glass tubes for forming the outer glass tube, comprising a longer central glass tube, and two shorter glass tubes for connecting to ends of the longer central glass tube to form the outer glass tube; producing ASTM F-15 rings configured as glass-metal transition elements; welding the ASTM F-15 rings to the shorter glass tubes; producing expansion compensating assemblies, wherein each of the expansion compensating assemblies includes a bellows-shaped device, a vessel, a cover, an evaporable getter, and non-evaporable getters, the producing process comprises: assembling together the metal absorber tube, the outer glass tube, and the expansion compensating assemblies; creation of the vacuum in the intermediate area; and