2results about How to "No local overheating" patented technology

The application belongs to a two-flow evaporator, which is a one-piece welded structure, comprising two parallel flat tube groups, inlet / outlet header, intermediate header, fins and two guards; the two flat tube groups are inlet flow flat tube group and return flow flat tube group, fins are arranged between adjacent flat tubes, the two guards are arranged outside the flat tube groups, and the two ends are fixed with the inlet / outlet header and the intermediate header; the inlet / outlet header is provided with a first partition plate, which divides the inner cavity into an end inlet flow cavity and a liquid outlet cavity, which are respectively connected with the inlet flow flat tube group and the return flow flat tube group, and the tube body is provided with an air inlet and a liquid outlet hole at one end; the intermediate header is provided with a second partition plate, a third partition plate and an intermediate partition cover, which divide the inner cavity into a middle inlet liquid cavity and a middle return liquid cavity, which are respectively connected with the inlet flow flat tube group and the return flow flat tube group, and the refrigerant flows from both ends to the middle through the middle inlet liquid cavity, and flows into the middle return liquid cavity through the upper and lower space of the intermediate partition cover, so as to realize double-flow heat exchange. The application can significantly reduce the core resistance and improve the temperature uniformity.

The embodiment of the utility model provides a conveying device, a sintering furnace and a photovoltaic cell production line, and belongs to the technical field of photovoltaic cell production equipment. The conveying device comprises two opposite conveying assemblies, wherein each conveying assembly comprises a conveying belt; the multiple supporting rods are distributed on the conveying belt, and the first ends of the supporting rods are fixedly connected with the conveying belt; the first supporting seat is fixed to the second end of the supporting rod, the first supporting seat is provided with an inclined face, and the inclined face extends from the top end of the first supporting seat to the tail end deviating from the first supporting seat. In the embodiment of the invention, when the battery piece is conveyed, the battery piece is supported on the two opposite inclined surfaces and moves along with the movement of the inclined surfaces, the contact between the battery piece and the inclined surfaces is linear contact, and the contact position between the inclined surfaces and the battery piece is the edge of the battery piece, so that the sintering area of the battery piece can be increased as much as possible; and local overheating cannot be generated, the sintering effect of the battery piece can be improved, and the product quality of the solar battery is further improved.