Modern temperature and humidity sensor technology used in spray painting workshops can improve produ

The two main factors in the air environment are humidity and temperature, which have significant impacts on people's lives, work, and industrial production. In the coating 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, is widely used in this industry. For the painting workshop, if the painting room needs to be strictly controlled for process needs, temperature and humidity must be controlled. The built-in temperature and humidity sensor of the humidifier can effectively monitor the temperature and humidity inside the coating line in the painting workshop, thereby ensuring production quality and improving product production efficiency.

In the spraying workshop, such as solid wood furniture, the environmental factors that have a significant impact on the spraying effect during the spraying process in the spraying room are temperature, humidity, and air cleanliness. The temperature is generally controlled at 25 ± 3 ℃, and the humidity is generally controlled at 65 ± 15%. Both high and low temperatures and humidity are not good. If the temperature is too high, the gloss of the paint surface will be poor, and it will appear unsmooth and rough, resulting in orange peel phenomenon, and the paint film color will be lighter and whiter. As a simple humidification equipment, dry spray humidifier has no complex mechanical mechanism, and the humidification effect is direct and fast.

First of all, let's understand the principle of the spray. In short, due to the flow of air, the air with high humidity will move to the space with low humidity, and eventually the humidity in all locations will increase, thus reducing the number of air particles. When in use, the dry mist humidification system sprays an average particle size of 8 μ The dense and fine water mist of m easily captures fine dust in the air. The captured fine dust will naturally fall and settle due to the increase in mass, while the uncaught fine dust will also absorb moisture in the air, resulting in an increase in mass and natural settling.

With the increase of air humidity, the electrostatic voltage between air dust will also decrease. When the relative humidity of the air inside the wire reaches 60%, the electrostatic voltage can basically decrease to a low point. At this time, the large floating dust accumulated by the electrostatic effect in the air will disintegrate to a greater effect, forming small floating dust that will not produce paint particles.

Temperature and humidity sensors refer to devices or devices that can convert temperature and humidity into easily measurable and processed electrical signals. In actual production, grasping and controlling temperature and humidity is of great significance for improving production. Therefore, sensors that integrate temperature and humidity have emerged as temperature and humidity sensors on the market, generally measuring temperature and relative humidity.

In common humidifier systems, there are built-in humidity sensors and start control valves. The humidity sensors monitor the humidity inside the line and provide feedback to the controller. The controller controls the valve to open based on the humidity inside the line, and the humidifier starts to humidify the room.

At present, most of the popular temperature and humidity sensors on the market are digital outputs. Gongcai Network has introduced a digital temperature and humidity sensor - HTU21D from abroad. The built-in temperature sensor can be in the same package as the humidity sensor, and can compensate for the temperature of relative humidity. It also provides a second independent temperature sensor output, allowing users to replace two sensors with one 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 related products, temperature and humidity sensors can be selected reasonably based on specific measurement purposes,measurement objects, and measurement environments.