Device which makes it possible in a solar-powered water heater to vary the level of the outlet piping to the sensor and/or the piping for drawing off hot water in accordance with the water in the reservoir

摘要

Device with variable-level piping in a reservoir of a solar-powered water heater. The invention relates to a device which makes it possible to maintain the functioning of a solar-powered water heater when the level of water in the reservoir falls. This device relates to the outlet piping of the sensor towards the reservoir and the take-off piping in the reservoir. It is made up of a flexible pipe 1 and a rigid floating pipe 2 in a material with a relative density less than 1. When the level in the reservoir falls, the opening of the piping is always under the surface of the water. The circulation of water by thermosyphon is thus uninterrupted and the water taken off is the highest and thus the hottest. The device according to the invention is intended particularly for solar-powered water heaters with reservoirs open to atmospheric pressure. <IMAGE>