Air Tightness Detector: Analysis of its working principle and application fields

The air tightness detector is an important equipment widely used in industrial production, construction engineering and other fields, and its working principle is based on the fluidity and pressure change law of gas.

How it works:

The working principle of the air tightness detector is based on the flow properties and pressure changes of the gas in the closed container. When there are holes or pores inside a closed system, the gas in the system will flow from the high-pressure area to the low-pressure area, resulting in a change in pressure. Leak detectors use devices such as pressure sensors and flow meters to monitor pressure differences and gas flow inside and outside a closed system to determine whether there are any loopholes or poor seals in the system.

There are two common detection methods commonly used in air leak detectors: the barometric method and the helium leak detection method.

The barometric method is to detect vulnerabilities by filling a gas with a certain pressure and using a pressure sensor to monitor the pressure changes inside and outside the system; The helium leak detection method uses helium as the detection medium, and uses the extremely small molecule of helium and its rapid diffusion characteristics in the system to detect the change in the concentration of helium leaked outside the system through the detector, so as to determine the location and size of the vulnerability.

Applications:

1. Industrial production: In manufacturing industries such as automotive, aerospace, and electronic equipment, air leak detectors are widely used to test the sealing performance of products to ensure that gas leakage or pressure runaway will not occur during use, so as to improve product quality and safety.
2. Construction engineering: In the process of building construction, air tightness detectors are used to detect the sealing performance of the external walls, roofs and other parts of the building to ensure that the building can effectively prevent the penetration of outside air and water, and improve the energy efficiency and service life of the building.

1. Energy industry: In the construction and maintenance of energy facilities such as oil and gas pipelines and transmission lines, air tightness detectors can be used to detect the sealing performance of pipelines and lines, find and repair leaks in time, prevent energy leakage and safety accidents, and ensure the stability and safety of energy supply.
2. Medical devices: In the production process of medical devices, air tightness detectors are used to test the sealing performance of medical gas equipment, infusion pipelines and other devices to ensure that no gas leakage or contamination will occur during the use of medical devices and ensure the safety and health of patients.

Importance and prospects:

As an important quality control and safety assurance tool, air tightness detectors play an important role in various fields. With the continuous progress of industrial technology and the increase in the demand for manufacturing, the application prospect of air tightness detector will be broader.