Device for absorbing radiant heat energy

A device for absorbing radiant heat energy, comprising:

• a frame-like rack having a top;
• a heat radiation-permeable cover disposed on said top of said rack;
• a distributor tube for feeding a heat carrier into said rack, a plurality of collector tubes each communicating with said distributor tube, and a gathering tube communicating with each of said collector tubes, each of said tubes being disposed below said heat radiation-permeable cover;
• a plurality of collector elements disposed on said collector tubes, each of said collector elements having an upper surface and a lower surface as seen in a direction of heat radiation entering said rack through said cover, a heat-absorbing coating disposed on said upper and said lower surfaces;
• reflector means disposed below said collector elements as seen in the direction of the heat radiation entering said rack for reflecting heat radiation which has not been absorbed by said upper surface onto said lower surface;
• said collector tubes being rotatably mounted in said rack in a mutually spaced-apart relationship for allowing said collector elements to be pivoted such that said upper surface faces towards the heat radiation entering said rack and
• a control circuit with a comparator disposed in said rack, two photocells disposed on said upper surface of at least one of said collector elements and connected to said control circuit, a heat sensor connected to said control circuit, and a further photocell disposed on said lower surface of said collector element and connected to said control circuit.

A device for absorbing radiant heat energy, comprising:

• a frame-like rack having a top;
• a heat radiation-permeable cover disposed on said top of said rack;
• a distributor tube for feeding a heat carrier into said rack, a plurality of collector tubes each communicating with said distributor tube, and a gathering tube communicating with each of said collector tubes, each of said tubes being disposed below said heat radiation-permeable cover;
• a plurality of collector elements disposed on said collector tubes, each of said collector elements having an upper surface and a lower surface as seen in a direction of heat radiation entering said rack through said cover, a heat-absorbing coating disposed on said upper and said lower surfaces;
• reflector means disposed below said collector elements as seen in the direction of the heat radiation entering said rack for reflecting heat radiation which has not been absorbed by said upper surface onto said lower surface;
• said collector tubes being rotatably mounted in said rack in a mutually spaced-apart relationship for allowing said collector elements to be pivoted such that said upper surface faces towards the heat radiation entering said rack, wherein said rack has lateral edges, and the device further includes channel means disposed on said lateral edges for receiving a pipe through which a heat carrier flows.

A device for absorbing radiant heat energy, comprising:

• a frame-like rack having a top;
• a heat radiation-permeable cover disposed on said top of said rack;
• a distributor tube for feeding a heat carrier into said rack, a plurality of collector tubes each communicating with said distributor tube, and a gathering tube communicating with each of said collector tubes, each of said tubes being disposed below said heat radiation-permeable cover;
• a plurality of collector elements disposed on said collector tubes, each of said collector elements having an upper surface and a lower surface as seen in a direction of heat radiation entering said rack through said cover, a heat-absorbing coating disposed on said upper and said lower surfaces;
• reflector means disposed below said collector elements as seen in the direction of the heat radiation entering said rack for reflecting heat radiation which has not been absorbed by said upper surface onto said lower surface;
• said collector tubes being rotatably mounted in said rack in a mutually spaced-apart relationship for allowing said collector elements to be pivoted such that said upper surface faces towards the heat radiation entering said rack, wherein said rack has lateral edges, and the device further includes channel means disposed on said lateral edges for receiving an electrical heating line.