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17
2025
09
Principles of Temperature and Humidity Control in Paint Booths
I. 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 burned, combustion-supporting air, and exhaust gases, the intensity of combustion is precisely regulated by controlling the volume of combustion-supporting air, coal feed rate, and flue gas emissions. This allows for accurate management of heat output and, consequently, the temperature within the booth. 2. Humidity Control Principle: In a dense-type paint booth, 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—provided the moisture-exhaust door can be flexibly controlled—the size of the cold-air inlet directly influences the opening of the moisture-exhaust port. As a result, the moist, hot air inside the booth is naturally expelled through the exhaust port. III. Heating and Temperature Control Heating and temperature control are achieved through one or a combination of the following methods: a. Coal Feed Control: The feeder automatically delivers coal into the furnace based on the temperature in the tobacco-loading chamber and the requirements of the combustion process, either advancing the coal directly into the burning zone or positioning it accordingly. b. Combustion-Air Control: A single-phase blower or axial fan is used to regulate the airflow supplied to the furnace. c. Flue Gas Emission Control: A rotatable damper is installed inside the chimney, with an actuator mechanism that precisely adjusts the effective cross-sectional area of the flue for optimal smoke removal. IV. Moisture Exhaust and Humidity Management 1. The air intake door of the horizontal dense-type paint booth is equipped with an actuator, enabling it to maintain stable positioning at any angle between 0° and 90°. 2. For standard paint booths 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 of the hot-air circulation duct to regulate moisture flow effectively. b. Automatic control mechanisms are fitted to the roof vents designed for moisture exhaust. c. A dedicated moisture-exhaust fan is installed to enhance ventilation efficiency. Guangzhou Qiangxin Spray Booth Machinery & Electrical Co., Ltd. specializes in manufacturing a wide range of paint booths, spray-drying chambers, and related accessories. We also offer comprehensive equipment for automobile repair and maintenance. We warmly welcome customers to visit our company for inspection and collaboration! Contact Information: Phone: +86-13728095578 Ms. Li QQ: 2851631176 Website: [www.gzqxjd.com](http://www.gzqxjd.com) | [www.gzqxjd188.com](http://www.gzqxjd188.com) Address: Building B, Xiangxi Avenue Zhongzhou Creative Park, Xiamao, Baiyun District, Guangzhou, China Keywords: Guangzhou paint booth manufacturers, principles of automotive paint booths, custom paint booths
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