|Vacuum dryer is widely used in chemical, pharmaceutical, agricultural and forestry native products, food, light industry and other fields, general machinery products is large and wide.
Vacuum dryer must first vacuum before use, and then heating equipment, operation.
If the operation procedures according to the first heating and vacuum pumping, heating air vacuum pump out of the heat, will be brought to the vacuum pump up, resulting in high temperature vacuum pump, vacuum pump efficiency is likely to decline. Add the workpiece to gas is pumped to workpiece material can be pumped to the composition of vacuum vacuum dryer. If the first heating, gas heat expands. Because the vacuum box seal is very good, great pressure expansion generated gas may make the observation window glass burst. This is a potentially dangerous. According to the first vacuum and heating heating operation procedures, you can avoid the danger.
Use should be the correct way to vacuum and heating. To reach the rated temperature, such as found in vacuum degree decreased again when appropriate and twitch. It is beneficial to prolong the service life of vacuum dryer. Gas heated is guided by the vacuum pressure gauge, will produce a temperature rise of the vacuum pressure gauge. If the temperature exceeds the vacuum pressure gauge using the specified temperature range, may make the vacuum pressure shown value error table. Therefore, according to the above conditions, using a rotary vacuum dryer which will be better.