The most common problems and solutions of adsorption dryers!

The most common problems and solutions of adsorption dryers!

Adsorption dryer is a very important part of the compressed air purification process. Whether it operates normally and whether it is running well is directly related to the quality of compressed air. Therefore, enterprises should pay attention to the small problems that occur during the operation of adsorption dryers. The equipment should be inspected regularly to ensure the normal and efficient operation of the equipment. If the problem cannot be solved in time, it should be reported to the manufacturer for repair.

First of all, observe the operation process of the suction dryer, whether each controller corresponds to the corresponding actions of each solenoid valve and pneumatic valve. The adsorption dryer always maintains a full pressure in the adsorption chamber, and there will be a regeneration process when dry air enters the regeneration chamber. .

The most common problems and solutions of adsorption dryers

　　 Mould core dryer adsorption stage:

　　Wet compressed air enters the air inlet buffer cavity from the inlet, and uniformly passes through the adsorption cavity of each mold core from bottom to top; the inner molecular sieve uses its own capillary action to absorb the moisture in the compressed air to achieve a drying effect.

The most common problems and solutions of adsorption dryers

　　 Core dryer regeneration stage:

Micro heat regeneration, the regeneration dry air enters the regeneration unit outlet confluence chamber through the regeneration airflow regulating valve. After the high temperature dry gas expands and reduces to atmospheric pressure in the regeneration unit mold core adsorption cavity, the regeneration unit molecular sieve is purged and adsorbed from top to bottom. The agent will accelerate the separation of water and adsorbent in the body, resolve it in dry air, and discharge it from the muffler together with the regeneration gas.

The most common problems and solutions of adsorption dryers

　　Only by fully understanding the working process of the dryer can it be easier to deal with various problems that arise.

　　 1. Abnormal pressure display

　　1, the pressure sensor is damaged

　　 Treatment method: replace the new pressure sensor

　　2, the solenoid valve group is leaking or blocked

　　 Treatment method: clean the solenoid valve seat and muffler, if damaged, must be replaced

　　3, the trachea is blocked or broken

　　 Treatment method: check whether the tracheal ventilation is normal, if there is any abnormality, it must be replaced immediately

　　4, the valve seat pressure plate falls off or is damaged

　　 Treatment method: check the pressure plate, replace if necessary

　　5, the cylinder is damaged

　　 Treatment method: Check whether the cylinder is operating normally, replace it if necessary

　　6, check valve spring elastic deactivation

　　 Treatment method: Replace the spring

　　7, the solenoid valve silencer is blocked

　　 Treatment method: disassemble and clean the muffler, if it is blocked or damaged seriously, it must be replaced immediately

　　 8. The regeneration air flow is too large

　　 Treatment method: reduce the opening and closing degree of the (regeneration airflow) regulating valve (Note: the regeneration airflow regulating valve must ensure the same degree of opening and closing). If the check valve and intake valve are abnormal, replace them if necessary

　　 2. The controller program works abnormally

　　1, the controller is damaged



　　 Treatment method: check the controller, if it is damaged, it must be replaced immediately

　　 3. After drying, the gas contains a small amount of moisture

　　1. With an air compressor to handle excessive flow or oil content, etc.

　　 Treatment method: check whether the air compressor is working normally

　　 2. There is a lot of rust inside the main gas supply pipeline, which blocks the muffler valve

　　 Treatment method: empty the pipes and the rust inside the gas storage tank, and clean the bottom of the muffler.

　　 Fourth, the dew point is too high

　　 1. The intake air quality does not meet the specified standards

　　 Treatment method: adjust intake pressure and temperature

　　 2. The regeneration gas volume is too small

　　 Treatment method: adjust the regeneration gas valve (make sure that the two groups open and close in the same degree), or contact BeiTeng after-sales service personnel

　　3, pipe

　　 Treatment method: Whether the bypass valve is closed tightly, and whether the dried gas is connected with other pipeline gas

　　 Five, fault shutdown

　　1, automatic power off

　　Cause analysis: circuit overload

　　 Treatment method: check the circuit and replace the short-circuit component

　　2, low pressure shutdown

　　Cause analysis: intake air pressure is too low

　　 Treatment method: adjust the intake air pressure to the specified standard

　　3, high temperature shutdown

　　Cause analysis: abnormal connection of temperature control module circuit, abnormal operation of solid state relay or temperature probe

　　 Treatment method: check the connection line of the temperature control module, solid state relay and temperature probe, if there is any abnormality or damage, it must be replaced in time