Modern temperature and humidity sensor technology for paint shops improves production quality

Two major factors in the air environment: humidity, temperature, they are on people's lives, work and industrial production are significant and influential. In the painting industry, it is necessary to strictly control the temperature and humidity in the workshop environment, and spray humidifier equipment as a simple temperature and humidity control equipment in this industry is very widely used. For painting workshop, such as paint spraying room for process needs, need to strictly control the temperature and humidity. Humidifier built-in temperature and humidity sensors, can effectively monitor the temperature and humidity of the coating workshop coating line in vivo, so as to protect the production quality and improve the production efficiency of the product.

In the spraying workshop, such as solid wood furniture in the paint spray booth in the process of spraying paint, the paint effect on the environmental factors that have a greater impact is the temperature, humidity and air cleanliness. Temperature is generally controlled at 25 ± 3 ℃, humidity is generally controlled at 65 ± 15%, temperature and humidity are too high and too low are not good. If the temperature is too high, the gloss of the paint surface will be very poor, and does not appear smooth, more rough, resulting in orange peel phenomenon, the color of the paint film is light and white. As a simple humidification equipment, dry spray humidifier does not have a complex mechanical mechanism, humidification effect is direct and fast.

First of all, first understand the principle of the sprayer, in short: due to the flow of air, high humidity air will move to the space of low humidity, the end of all positions of the humidity will be raised, which in turn reduces the number of air particles to reduce. In use, the dry fog humidification system sprays an average particle size of 8μm of water mist, dense and fine water mist is very easy to capture the dust in the air, the dust is captured due to the increase in mass, will naturally fall down and settle, and is not captured by the dust will also be absorbed by the moisture in the air, the quality of the increase in the natural settling.

With the increase of air humidity, air dust between the electrostatic voltage will also decline, when the line in the body of the relative humidity of the air to reach 60%, the electrostatic voltage can be basically down to a lower point, at this time the air by the electrostatic effect of aggregation of large dust disintegration to achieve a greater effect, the formation of paint particles will not produce a tiny floating dust.

Temperature and humidity sensor refers to the amount of temperature and humidity can be converted into an easy to be measured and processed electrical signals of the equipment or device. In actual production, the temperature and humidity grasp and control, the improvement of production is of great significance. Therefore, the temperature and humidity sensor came into being on the market, the temperature and humidity sensors, generally measuring the amount of temperature and relative humidity.

In the common humidifier system, built-in humidity sensor and start the control valve, humidity sensor to monitor the line within the humidity and feedback controller, the controller according to the line within the humidity control valve to open, the final humidifier start to start humidifying the room body.

At present, the popular temperature and humidity sensors on the market are mostly digital output, work from abroad to introduce a digital temperature and humidity sensors - HTU21D, built-in temperature sensor can be co-located with the humidity sensor in the same package, can be relative humidity) temperature compensation measurement, and provide a second independent temperature sensor output, so that the user to replace two sensors with a sensor. In addition, these types of temperature and humidity sensors, have the advantages of low energy consumption and high accuracy. However, different temperature and humidity sensors vary greatly in principle and structure, when selecting the relevant products, according to the specific purpose of the measurement, the measurement object and the measurement environment, in order to rationalize the selection of temperature and humidity sensors.