Hot water storage vessel for solar heating - has cylindrical pressure vessel protruding from enclosing tank at top or bottom

摘要

The hot-water storage vessel is for a solar heater. It comprises a cylindrical pressure vessel (1) enclosed in a storage tank (2), and from which it protrudes at top or bottom. The tank can have bottleneck-type sealing edges (3) enclosing the vessel and with soft elastic joints between them, pressed against the vessel by clamping straps. The tank unions (6, 7) can be tangential. The level at which water is extracted from the tank can be controlled dependent on its temperature, typically using a pipe with lengthwise slits one above the other and enclosed by a second pipe with spiral slits one above the other, and which is turned by a regulator dependent on the water temperature. ADVANTAGE - Large capacity, low cost, and heat-transfer with minimum temperature difference.