Generally hot air circulation oven heating pipe, a circulation fan oven can be called hot air circulation oven, the oven because no matter what the structure and direction horizontally or vertically, in the final analysis are the hot air inside the loop, it can be known as the hot air circulation oven, such as electric blast oven, high-temperature sterilization oven door. But generally referred to in the industry most of hot air circulating oven or oven especially as shown in figure, the other oven is evolved from the oven on the map, such as with high-temperature sterilization requirements, fan-cooled standardized into ring fans, front and rear door fish dry hot wind circulation oven, duct also made a change, it becomes a high-temperature sterilization oven door. Shown hot air cycle is divided into five standard models. They are single door cycling, two two cars, two four-car, three six vehicles, four eight vehicles. Overall framework wild Schisandra oven hot air circulation oven cavity fully welded, rounded transition hot air circulation oven, and do outside the box surface is flat, smooth, uniform color, overall appearance, no bump phenomenon. Cavity filled fillets over: welding equipment cavity were full, rounded excessive treatment, making oven in working condition with the outside world without channeling wind phenomenon, and the equipment is easy to clean, no water leakage inside the insulation. Using the projection of track: the projection of track to avoid routine cleaning sunken portion of the inner rail is inconvenient and door air leakage and other phenomena. The drying cars need flap structure, δ = 3mm. Oven for heating in the form of: steam heating. Made of stainless steel tube stainless steel fins. Between the door and the cabinet temperature non-toxic silicone rubber seals, oven insulation layer silicate. Inside the oven temperature is less than equal to ± 2 ℃. Oven body in full compliance with the requirements of the production process, manufacture execution JB / T 9505-1999 standard.