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16
2025
09
Principles of Temperature and Humidity Control in Paint Booths
1. Temperature Control Principle: Based on the relationship between fuel combustion and the amounts of fuel being burned, as well as the quantity of combustion air, the combustion intensity is regulated by precisely controlling the supply of combustion air, coal feed rate, and flue gas emissions. This approach ensures effective management of heat output and maintains the desired temperature within the curing chamber. 2. Humidity Control Principle: In a dense-type curing chamber, if no cold air is introduced, the heating chamber and tobacco-loading area rely solely on internal circulation of hot air. However, if cold air is allowed to enter—and provided the moisture exhaust door is flexibly managed—the size of the cold-air inlet can be precisely controlled. As a result, the moisture exhaust port will automatically open, enabling the removal of moist, hot air from the chamber through this vent. **II. Heating and Temperature Control:** Heating and temperature control are achieved using one or both of the following methods: a. Coal Feed Control: The feeder mechanism automatically delivers coal into the furnace based on the temperature in the tobacco-loading chamber and the requirements of the combustion process, either by advancing coal directly into the combustion zone or by regulating the coal feed rate. b. Combustion Air Control: A single-phase blower or axial fan is employed to regulate the airflow supplied to the furnace. c. Flue Gas Emission Control: A rotatable damper is installed inside the chimney, with an actuator used to adjust the effective cross-sectional area of the flue gas outlet for precise emission control. **III. Moisture Exhaust and Humidity Management:** 1. The air intake door of the horizontal dense-type curing chamber is controlled by an actuator, allowing it to remain stable at any angle between 0° and 90°. 2. For conventional curing chambers converted into dense-type systems, moisture exhaust and humidity control are implemented as follows: a. Rotating dampers and automated temperature/humidity control devices are installed at the inlet and outlet vents of the hot-air circulation ducts to regulate moisture exchange. b. Automatic control mechanisms are fitted to the moisture exhaust skylights of the curing chamber. c. A dedicated moisture exhaust fan is installed to enhance ventilation efficiency. Guangzhou Qiangxin Spray Booth Electromechanical Co., Ltd. specializes in the manufacturing of various types of paint booths, spray painting rooms, and related accessories. We also offer a wide range of automobile repair and maintenance equipment. We warmly welcome customers to visit our company for inspection and consultation! Contact Information: Tel: +86-18718849558 Ms. Wu QQ: 2851631172 Website: [www.gzqxjd.com](http://www.gzqxjd.com) | [www.gzqxjd168.com](http://www.gzqxjd168.com) Address: Building B, Zhongzhouhang Creative Park, Xiangxi Avenue, Xiamao, Baiyun District, Guangzhou
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