Haoen manufacturer industrial vacuum box vacuum sealing box digital display constant temperature vacuum drying box 300 degrees

Description :

　　1Industrial vacuum boxTechnical principle:

　　1. Require the vacuum chamber to be a completely sealed container, square in shape;

　　2. Vacuum pumping principle: Connect a tube from a completely sealed vacuum chamber, pass it through a manual valve or solenoid, and then connect it to the vacuum pump's pumping port; When the required vacuum level is reached, stop the vacuum pump and close the manual valve or solenoid valve to maintain a certain vacuum level inside the box; Simultaneously install a vacuum gauge to display the vacuum level;

　　3. After starting the vacuum pump, the vacuum pump compresses the air in the completely sealed container, making the pressure inside the box lower than the ambient pressure. Through the exhaust port, it is discharged into the environment, and all the air inside the box is extracted to achieve the vacuum effect; The lower the negative pressure, the higher the vacuum degree;

　　When the air inside the box is completely restored, activate the inflation function to fill the box with ambient air at the same pressure as the environment, which means complete restoration;

　　5. Use this cycle for vacuum testing.

　　IIVacuum sealed boxBox specifications

　　Box structure: connected type, with the vacuum pump placed at the bottom of the machine;

　　Partition layer: divided into two layers, with two distribution boards that can be easily removed;

　　Panel installation: The control panel is installed under the machine (as shown in the equipment appearance diagram);

　　Door opening method: single from right to left opening;

　　Visual window: with a visual window on the door, size W250 × H300mm;

　　The material of the inner box is 304 # stainless steel industrial plate; Strengthen the treatment of the inner box and vacuum it without deformation;

　　The outer box material is cold-rolled steel plate, with a thickness of 1.2mm and a surface treated with baking paint;

　　The insulation material is high temperature resistant rock wool, with a insulation layer thickness of 100mm and good insulation effect;

　　Install brake adjustable casters that can be pushed freely;

　　IIIDigital constant temperature vacuum drying ovenTemperature control system

　　Temperature range: Room temperature+30 ℃~200 ℃

　　Control accuracy: ± 0.5 ℃

　　Display accuracy: 0.1 ℃

　　Temperature uniformity inside the box: ± 5 ℃% (empty box test without vacuum)

　　Heating rate: RT → 100 ℃ (about 30 minutes), 200 ℃ (about 45 minutes)

　　4、 Vacuum system

　　Vacuum degree: 0~-101KPa (≤ 133pa)

　　Vacuum pressure leakage rate: approximately 0.8KPa per hour

　　Using high sealing silicone sealing strips to ensure the sealing of the entire machine;

　　Using a digital display vacuum gauge to directly display the vacuum degree inside the box, allowing you to instantly understand the vacuum status inside the box. The vacuum degree reaches 0-0.1Mpa (i.e. 100pa vacuum degree)

　　4、 Maintenance and upkeep

　　1. Regularly check the oil quality and replace it with new oil if it deteriorates to ensure the normal operation of the vacuum pump. Regularly check the oil level position and adjust it to meet the requirements if it does not meet the regulations. When the vacuum pump is running, the oil level should be at the center of the oil gauge.

　　2. The oil change period shall be determined by the user at their discretion, taking into account the actual environmental conditions and whether the performance requirements can be met. It is recommended to change the oil of a new vacuum pump after about 100 hours of operation when removing clean and dry gases. After the black metal powder is no longer visible in the oil, the oil change period can be extended appropriately in the future.

　　3. In general, after 2000 hours of operation, the vacuum pump should be inspected for aging of the sealing components, cracking of the exhaust valve plate, and cleaning of any dirt deposited on the valve plate and exhaust valve seat. Clean all parts inside the vacuum pump chamber, such as rotors, rotors, springs, etc. Usually cleaned with gasoline and dried. After cleaning the rubber parts, dry them with a dry cloth. When cleaning and assembling, handle with care to avoid injury.

　　4. Conditional cleaning should also be carried out in the pipeline to ensure smooth flow.

　　5. After reassembly, a trial run should be conducted, generally requiring 2 hours of idle operation and a second oil change. This is because there may be a certain amount of volatile substances left in the vacuum pump during cleaning. After normal operation, it can be put back into normal work.

　　6. Check for any looseness in the vacuum pump piping and joints. Rotate the vacuum pump by hand to see if it is flexible.

　　7. Tap the motor and try to see if the motor direction is correct.

　　8. Start the motor, and when the vacuum pump is running normally, open the outlet pressure gauge and the inlet vacuum pump. After the appropriate pressure is displayed, gradually open the gate valve and check the motor load.

　　9. Try to control the flow rate and head of the vacuum pump within the range indicated on the label to ensure efficient operation of the vacuum pump and achieve significant energy-saving effects.

　　10. During the operation of the vacuum pump, the bearing temperature should not exceed 35C of the ambient temperature, and the high temperature should not exceed 80C.

　　11. If any abnormal sound is found in the vacuum pump, it should be stopped immediately to check the cause.

　　12. When the vacuum pump needs to be stopped, first close the gate valve and pressure gauge, and then stop the motor.

　　13. The lubricating oil of the vacuum pump should be changed after 100 hours of operation within a month, and then every 500 hours thereafter.

　　14. Regularly adjust the packing gland to ensure normal dripping inside the packing chamber (preferably in droplets).

　　15. Regularly check the wear of the shaft sleeve, and replace it promptly if there is significant wear.

　　16. When using a vacuum pump in the cold winter season, after parking, it is necessary to unscrew the drain plug at the bottom of the pump body to drain the medium completely. Prevent frost cracking.

　　17. If the vacuum pump is not in use for a long time, it is necessary to disassemble the entire pump, dry off the water, apply grease to the rotating parts and joints, and store them properly.

　　5、 Usage:

　　1. First, evenly place the materials into the built-in baking tray in the oven, then insert the tray accurately into the grill cart and push it into the drying oven.

　　2. Next, close the exhaust valve, close the vent valve, and close the box door. There are four locks on the vacuum oven that only lock the box door. At this point, we need to be careful not to turn the locking device too tightly when vacuuming, as it can easily cause the vacuum oven to fail to open after the drying process is completed.

　　3. Then open the vacuum valve to evacuate, and according to the basic performance of the vacuum pump, evacuate to the limit value of the pressure gauge as the standard.

　　4. After completely vacuuming, first close the vacuum valve. If the vacuum valve is not tightly closed, turn off the power supply of the vacuum pump directly.

　　5. There is a drying cycle in the experiment, and each observation requires a certain interval. If the index on the pressure gauge drops, it indicates that a large amount of gas has been produced by the water molecules in the drying oven, and the vacuum pumping process can be carried out again.

　　6. After the drying process is completed, the first step is to open the air valve and slowly introduce air. Wait until the pressure on the vacuum gauge drops to zero, then open the vacuum oven door and take out the material.

AfterSalesService :

• Industrial vacuum box