The air compressor rental matching suction dryer is also a conventional configuration, and the biggest benefit of the suction dryer is to reduce the moisture in the compressed air. Let's discuss how to maintain and upkeep the vacuum dryer from an air compressor rental company.
Daily maintenance of the vacuum dryer
1. Equipment and working environment should be kept clean.
2. Keep the instrument accurate and error free.
3. Check the accuracy and leakage of pneumatic switching valves and other valves. If abnormalities are found, the pilot gas pressure and program controller should be checked in a timely manner, and leaks should be identified in a timely manner to adjust the sealing components. Generally, the wear and tear of the desiccant should be checked every 1-2 years. In order to supplement and replace it in a timely manner, the specifications of the new auxiliary desiccant should meet the original design requirements.
4. After the new equipment is put into operation or shut down for more than a month, there will be moisture discharge from the desiccant inside the tower when it is awaiting activation.
5. When enabled, the power supply voltage should be consistent with the rated voltage of the dryer. Check whether the pressure gauge, thermostat, valve, connection and wiring (wires) are intact, and whether the fastening bolts are loose.
Fault analysis of vacuum dryer
1. The regeneration tower does not exhaust after startup
Reason: The pneumatic cut-off valve signal solenoid valve does not move; The pressure of the pneumatic cut-off valve signal controller is low.
Countermeasure: Check the circuit board, check the solenoid valve, and ensure that the gas is connected; Increase control air pressure.
2. Angry traffic is too high
Reason: The check valve is loose and closed; Shutoff valve closed loosely; When the valve opening is too large; The airflow diffuser at the top of the tower is broken, and the dryer is stuck in the valve disc.
Countermeasure: Check valve components and repair or replace them. Check the airflow diffusers at both ends of the tower.
3. Renewable exhaust noise
Reason: The muffler is damaged; Close the valve to close the leak and increase the flow rate.
Action: Repair or replace.
4. Poor drying effect
Reason: Upstream degreasing filtration device malfunction, oil in the dryer; Recently, the temperature has been too high; Low work pressure; Excessive airflow, overload; The regeneration gas flow rate is too small, and the regeneration pressure is high.
Measure: Check the oil separator; Measure the intake temperature; Air pressure can be increased as needed; Reduce load; Check the throttle and control valve.
5. Output more dust from finished products
Reason: The downstream dust removal filter is damaged; Desiccant has significant wear and powder.
Countermeasure: Replace the filter; Replacing desiccant
6. The pressure output of the finished product decreases
Reason: Desiccant powder.
Countermeasure: Replace the desiccant.
