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Refrigeration system: The refrigeration system is one of the key parts of the integrated test box. Generally speaking, the cooling form of the test box is mechanical refrigeration. The mechanical refrigeration is considered suitable and uses vapor compression refrigeration. They are mainly composed of a compressor, a condenser and an evaporator, because the temperature we try is as low as -70 ° C. The refrigeration system of the comprehensive trial box produced by the French Taikang company is a brief introduction. It consists of two parts, which are called high temperature local and low temperature parts. Each small batch is a relatively independent refrigeration system. France Taikang's multi-stage diaphragm evaporator and refrigeration compressor are in the forefront of the world.
Sensor System: The sensors that try the box are primarily temperature and humidity sensors. The most common application of temperature sensors is the platinum group.
The high and low temperature test box refers to a test box capable of simultaneously giving temperature and temperature stress. With the demand for research and manufacture of industrial products in China, in recent years, China has introduced a large number of trial systems from overseas, which has exerted a crucial effect on the research, manufacture and stereotype of industrial products in China, but because of its complexity, it is necessary to try There were a lot of problems in the operation, and it was revealed that the problem could not be solved early, which greatly extended the trial cycle and affected the research and manufacturing office of the product. The reason for the emergence of these phenomena is that there is no solution to the working principle of the comprehensive attempt. To this end, we have made a brief summary of the basic working principle of the try box.
Tanning system: Tanning system is the center of the comprehensive trial box, which votes the temperature-increasing efficiency and precision of the test box. Because the tanning system basically belongs to the category of software, and this part is in the process of application, it will not reveal the problem. Because of this, this article has made a lot of introductions.
Temperature system: The temperature system is divided into two subsystems: humidification and dehumidification.
The humidification form of the test box is generally considered appropriate and the steam humidification method is used, and the low pressure steam is directly infused to try to humidify the space. This humidification method has the experience of humidification, fast speed, humidification and sharpness, and it is easy to achieve forced humidification especially when the temperature is lowered.
Tanning instrument: The imported "Shengang" is imported from Toyo. The precision range is ±0.1 °C, with a precision of ±0.1 °C and a resolution of ±0.1 °C.
The principle of high and low temperature try box: The comprehensive test box consists of refrigeration system, heating system, tanning system, temperature system air circulation system, and sensor system. The system mentioned above belongs to two aspects of electrical and mechanical refrigeration. The beginning of the next phase describes the working principles and office processes of several major systems.
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Introduction and troubleshooting of high and low temperature test chambers
Introduction of high and low temperature test chambers and fault check heating system: The heating system of the test box is relatively simple compared to the refrigeration system. It mainly consists of high-power resistance wire, because the temperature rise efficiency required by the test box is large, because the heating system of this try box is relatively large, and the circulation system is relatively smooth. It can better circulate the air in the office and the average is satisfactory.