Device for preventing mixture, minimization of heat losses or for guaranteeing minimum solar inlet temperature in large-scale solar plant, has collector or collector field comprising mixer or bypass valve that is bypassed by detour valve

摘要

The device has a solar pump (2), and a collector or collector field (1) comprising a 3-way-mixer or bypass valve that is partially or completely bypassed by a detour valve (4) when solar forward flow flows directly into solar return flow until determined reference temperature is adjusted in the solar forward flow or determined minimum temperature is not exceeded in the solar return flow. The collector is designed as a vacuum collector e.g. Dewar or Sydney-vacuum tube collector with CPC-mirrors.