Industrial Air Cooled Dehumidifier for Painting Rooms in Shipyards

Industrial Air Cooled Dehumidifier for Painting Rooms in Shipyards

In the shipyard spraying room, industrial dehumidifier is the key equipment to ensure that the ambient humidity meets the requirements of the coating process, which directly affects the coating adhesion, drying speed and the final anti-corrosion effect. The following is for the shipyard spraying room dehumidifier selection and application points:

1. spray room on the core requirements of humidity

Humidity range: usually need to be controlled at 40%-60% RH (adjusted according to the type of coating, some epoxy coatings require lower).

Temperature impact: the ambient temperature needs to be synchronized control (generally 15-30 ℃), to avoid condensation or too fast drying.

Air cleanliness: need to cooperate with the ventilation system to filter dust, to avoid pollutants attached to the wet film.

2. Industrial dehumidifier selection of key parameters

Dehumidification volume: calculated according to the volume of the spraying room, the number of air changes (usually 6-12 times / hour), outdoor climate. For example:

500 square meters × 6m high spraying room, in 30 ℃ / 80% RH environment, may need ≥ 150L / day of dehumidification.

Dehumidification technology:

Refrigerated dehumidifier: suitable for temperature ≥15℃ environment, cost-effective.

Rotor dehumidifier: suitable for low temperature (below 5℃) or ultra-low humidity (<30% RH) demand, higher energy consumption but good precision.

Anti-corrosion design: the shell should be made of stainless steel or anti-corrosion coating to avoid solvent corrosion.

3. System integration considerations

Linkage control: linkage with exhaust system and heating equipment to maintain constant temperature and humidity.

Airflow organization: Avoid direct blowing of uncured coating, uniform air supply.

Convenience of maintenance: the filter needs to be easy to clean (spraying dust is easy to clog), anti-freezing design of the drainage pipe.

4. Cost and energy efficiency optimization

Heat Recycling: The exhaust heat of the rotor dehumidifier can be used for air preheating to reduce energy consumption.

Sub-area control: large shipyards can be divided into a number of small dehumidification system, on-demand start and stop.