How often should the tank discharge water

The drainage interval of the gas tank shall be based on requirements for air environment humidity, equipment operating time and compressed air quality factors such as comprehensive determination, there is no fixed standard, but can be judged by the following methods and develop a reasonable drainage plan:

1. Core Factors Affecting Drainage Frequency

1. ambient humidity
   • high humidity environment(such as the southern plum rainy season, coastal areas): high water content of the air, the gas tank condensate generated fast, need drain every 2-4 hours or even more frequently.
   • Low humidity environment(such as dry areas or winter): less condensate generation, can be drain 1-2 times a day.
2. Device operating time
   • continuous operation the air storage tank continuously receives compressed air, the condensate accumulates quickly, and the drainage interval needs to be shortened (e. g. once every 4 hours).
   • Intermittent operation: Adjust according to the actual gas consumption time, for example, run 8 hours a day, and drain water once before get off work.
3. Compressed air quality requirements
   • industries sensitive to water content(such as food, medicine, electronics): strict control of water, recommended drain 2-3 times per shift, and cooperate with the cold dryer, suction dryer and other post-processing equipment.
   • General industrial gas: The drainage interval can be appropriately extended, but it is necessary to regularly check whether there is water at the bottom of the gas storage tank.

2. Drainage Operation Recommendations

1. manual drain valve
   • operation steps: Close the intake valve of the air storage tank, slowly open the drain valve, and close the valve after the water flow is completely discharged.
   • Precautions: Avoid safety hazards caused by sudden release of pressure when draining. It is recommended to wear protective gloves.
2. Automatic drainer
   • type selection:
     • floating ball type: Suitable for scenes with stable displacement and low cost.
     • Electronic: Can set the drainage time interval, suitable for high-precision water control needs.
   • Maintenance Points: Regularly check whether the automatic drain is blocked or malfunctioning to avoid water accumulation due to malfunction.
3. Selection of drainage time
   • recommendations: Drainage after the equipment is shut down or during the low period of gas consumption to reduce the impact on production.

3. long-term undrained hazards

1. corrosion of gas tank: The acidic substances in the water will corrode the inner wall of the tank, reduce the life of the equipment, and even cause safety hazards.
2. Affect compressed air quality: Moisture enters the gas-using equipment with the air flow, which may cause problems such as sticking of pneumatic components and corrosion of product surface.
3. Increased post-processing burden: If the drainage of the gas storage tank is not smooth, the subsequent cold dryer, filter and other equipment need to undertake more water removal tasks to accelerate the loss of consumables.

4. Measures to Optimize Drainage Management

1. installing hygrometer: Install a hygrometer near the air inlet of the air storage tank to monitor the air humidity in real time and dynamically adjust the drainage frequency.
2. Periodic inspection: Check whether there is water at the bottom of the gas storage tank every week, and record the displacement to provide a basis for subsequent adjustments.
3. Combined with post-processing equipment: Install a cold dryer or suction dryer in front of the air storage tank to reduce the moisture entering the air storage tank and reduce the drainage frequency.