FLAT VACUUM-TREATED SOLAR COLLECTOR AND PRODUCTION METHODS Russian patent published in 2009 - IPC F24J2/00 F24J2/05 F24J2/42 F24J2/46 

FIELD: heating.

SUBSTANCE: present invention is referred to the flat vacuum-treated solar collector. The flat solar collector is produced so that it can be vacuum-treated and vacuum-sealed. The solar collector contains, at least, one absorber, i.e. plate-like absorber, one pipe, which is, at least, partially, connected with the above mentioned absorber in thermal way. The collector also includes supporting structure, which is produced, particularly, from metal and provided with perimetritic frame, and at least, one first transparent wall, i.e. flat glass panel. In addition, the perimeter of the first transparent wall and supporting structure, namely, the first supporting surface of frame (8) overlap each other on perimetritic section. Besides, one side of the first transparent wall includes, at least, partially, the metal coating on the part of coating area and/or perimeter of the above side of the first transparent wall. The metal coating consists of at least one metal layer, namely, plasma spraying of copper layer, and the second metal layer, i.e. tin layer. As a result, at least one metallised section is produced on the transparent wall. The aforesaid flat solar collector includes also the first strip of soft metal, i.e. lead or copper, suitable for soldering the joint between the first transparent wall and the supporting structure by means of soft soldering to the supporting structure and, particularly, to perimetritic frame and to metallized section of the first transparent wall. The system of the flat solar collector contains, at least, one flat solar collector and, at least, one mirror of the semi-cylindrical form. The mirror can reflect the light to, at least, one transparent wall of the flat solar collector. The solar battery contains, at least, two flat solar collectors and/or a system of flat solar collectors. The production method of the flat solar collector provides for producing at least one supporting structure and one perimetritic frame and/or, at least, one partition, one absorber, i.e. plate-like absorber, one pipe, the first transparent wall, one bottom part and/or, at least, one second transparent wall. In addition, there is at least partially, metal coating along the perimeter of the first and/or second transparent wall. The said metal coating includes the first metal layer, plasma spraying of copper layer, in particular, and the second metal layer, i.e. tin layer. Then the production methods provides for installing partition(s) in perimetritic frame and at least one pipe ensuring its thermal communication with the absorber by means of welding or soldering with hard solder to, at least, one partition with the aid of at least one straining and fixing element and to connection channels of the perimetritic frame. The ends of the pipe are welded to the connection channels and the first transparent wall is installed on the metal coating, to which the soft metal strip is soldered to the supporting structure by means of soft solder. The soft metal strip is soldered to the supporting structure aligning the part of the strip in parallel to the supporting structure. After that, the solar collector panel is vacuum-treated, through the inlet channel of the pump using, at least, one external pump. The flat solar collector is heated to the temperature from 120°C to 170°C and approximately to 150°C, during the period sufficient for effective degassing of collector, i.e. at least 30 minutes. At the next stage, the flat solar collector or it's part containing getter and/or getter coating is heated to the temperature of, at least, 180°C or more in order to activate getter. Then, the flat solar collector is isolated by closing valve or pinching pipe connection in the point of pump inlet channel.

EFFECT: development of solar collector with vacuum-treating.

4 cl, 10 dwg