The air circulation system of the hot air circulation oven adopts the fan circulation air supply mode to achieve uniform and efficient air circulation. The wind source is driven by the circulating air supply motor to drive the wind wheel through the heater, and the hot air is sent out through the air passage to the inner chamber of the oven, and then the used air is sucked into the air passage to be used as a wind source for recirculating heating. Ensuring indoor temperature uniformity When the temperature value oscillates due to the operation of the switch door, the air circulation system quickly returns to the operating state until the set temperature value is reached.
Energy saving method for hot air circulation oven sharing:
1. Increasing the inlet air temperature of the hot air circulation oven and lowering the exhaust gas temperature of the drying equipment: Increasing the inlet air temperature of the drying equipment due to the common efficiency of the oven heat is beneficial to improving the thermal efficiency of the oven. However, the inlet air temperature is limited by the product's allowable temperature. In a co-current oven, the surface temperature of the particles is relatively low, so the inlet air temperature of the drying equipment can be much higher than the allowable temperature of the product.
2. Reduce the various heat losses in the drying process: Generally speaking, the heat loss of the hot air circulation oven will not exceed 10%, and the heat loss of the large and medium-sized production equipment is about 5% if it is insulated. Therefore, the insulation work of the drying system should be done well, but the thicker the insulation layer, the better the thickness of the insulation layer should be determined. In order to prevent the leakage of the drying system, the blower and the induced draft fan are generally used in series, and the system is operated under zero pressure condition after reasonable adjustment, so as to avoid the decrease of the thermal efficiency of the oven caused by the leakage of the drying medium or the leakage of the ambient air in the hot air circulating oven. .
3. Reduce the evaporation load of the hot air circulation oven: before the material enters the hot air circulation oven, it can be pre-dehydrated by filtration, centrifugal separation or evaporation of the evaporator, etc., which can increase the solid content in the material and reduce the evaporation load of the oven, which is energy saving of the drying equipment. One of the most effective ways.
Hot air circulation oven is a commonly used drying equipment for dehydration drying, heat curing, pharmaceutical, chemical, food, light industry and other industries. It has many good performance characteristics and advantages. It is excellent in configuration, large in output, full in function, and low in capital. Excellent equipment.
Excellent configuration: hot air circulation ovens of different sizes and models, the number of baking trays is doubled compared with vacuum drying ovens of the same size, and the configuration can be enhanced according to different requirements of equipment products, and can be displayed and controlled by touch computer. temperature.
Large output: The number of hot air circulation ovens at the same price is 6 times that of the vacuum drying oven. If there is no special requirement, the hot air circulation oven is a good choice. The output is greatly enhanced and the operation is simple and convenient.
Full function: can be thermostated, can be timed, can be segmented heating, can be controlled by a touchable computer display, temperature control or even programming, let the program to control the temperature changes, computer monitoring and manual remote monitoring.
Less investment: the same configuration of vacuum drying oven, the price is 4 to 6 times of the hot air circulation oven, that is to say, the price of one set of 6 hot air ovens, of course, there is no special requirement, the special requirements here means that must be used The task that can be done in a vacuum oven is actually a very cost-effective drying device.
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