Helium mass spectrometer leak detector is a high-precision instrument that detects whether there is leakage in equipment, pipelines and containers by analyzing the concentration of helium at the leak point. It is widely used in sealing detection and leakage monitoring in electronics, aerospace, chemical, pharmaceutical and other industries. Its working principle is based on mass spectrometry analysis technology, which detects the movement trajectory of helium molecules in the mass spectrometer to accurately identify the location and extent of the leak. Anhui Bowei will give you a detailed introduction to the helium mass spectrometer leak detector and its specific applications.
Working principle of helium mass spectrometer leak detector
The core principle of течеискатель масс-спектрометра гелия is to use the mass spectrometry characteristics of helium for leakage analysis. The specific process can be divided into several steps:
Helium injection: In the sealed system to be detected, a certain concentration of helium is first injected. Because helium has a small molecular weight and high diffusivity, it can quickly penetrate tiny leaks.
Helium diffusion: If there is a leak in the equipment or system to be detected, helium will diffuse out through the leak point and enter the sensor area of the detector. Because the concentration of helium in the air is very low, it is usually necessary to accurately detect extremely low concentrations of helium in the air.
Mass spectrometry: Helium mass spectrometers use mass spectrometers to ionize gases and then separate them according to the mass-to-charge ratio (m/z) of different gas molecules. The mass-to-charge ratio of helium is 4, and the instrument can accurately distinguish helium from other gases to detect the concentration of helium.
Signal output: When helium enters the sensor area of the detector through a leak, the helium molecules are ionized and accelerated to generate a signal. The instrument will determine the size of the leak based on the signal strength and output relevant data to help operators locate the leak.
Advantages of helium mass spectrometer leak detectors
Helium mass spectrometer leak detectors have the following significant advantages, making them one of the most popular leak detection tools in various industrial applications:
High accuracy: Helium mass spectrometer leak detectors can detect extremely small leaks with an accuracy of up to 10^-12 mbar·L/s, which is very important for fields that require high precision (such as aerospace, semiconductor manufacturing, etc.).
Fast response: Compared with traditional leak detection methods, helium mass spectrometer leak detectors have a faster response speed and can detect leak sources in a short time, reducing detection time and improving work efficiency.
No need to contact the object being tested: Helium mass spectrometer detection does not require direct contact with the object being tested, which is suitable for equipment or containers that cannot be opened or are difficult to access, and will not damage the object being tested.
High sensitivity: Helium is an ideal gas detection medium. Its high sensitivity enables helium mass spectrometer leak detectors to accurately measure at extremely low helium concentrations, ensuring the reliability of the test results.
Wide range of applications: Helium mass spectrometer leak detectors are suitable for a variety of different occasions, including high vacuum systems, gas storage tanks, refrigeration equipment, electronic product packaging and other fields.
Application of helium mass spectrometer leak detectors
Aerospace and aviation fields: In the manufacturing process of spacecraft and aircraft, helium mass spectrometer leak detectors are widely used for leak detection of fuel systems, pressure vessels and sealing systems. Since these systems have extremely high requirements for sealing, helium mass spectrometer detection can ensure the reliability of equipment under extreme conditions.
Electronics and semiconductor industry: In the production process of electronic components and semiconductors, helium mass spectrometer leak detectors are used to detect gas leaks in vacuum systems to ensure the stability of the production environment and product quality.
Pharmaceutical industry: In the pharmaceutical field, helium mass spectrometer leak detectors are used for sealing detection of drug production and packaging to ensure that the quality of drugs is not contaminated by the outside world and meets industry standards.
Automobile and refrigeration industry: In the manufacturing process of automobile air-conditioning systems, household appliances and refrigeration equipment, helium mass spectrometer leak detectors can quickly and effectively detect refrigerant leaks to ensure the performance and safety of equipment.
Energy industry: In the inspection and maintenance of oil and gas pipelines, pressure vessels and storage tanks, Оборудование для обнаружения утечек гелия provides an effective means for pipeline integrity detection, which helps to prevent energy leakage accidents and ensure environmental and personnel safety.
Заключение
Helium mass spectrometer leak detectors have become an indispensable high-tech tool in the industrial field with their high precision, fast response and wide applicability. Whether in aerospace, electronics, pharmaceuticals, or in the fields of automobiles, refrigeration and energy, it has made important contributions to ensuring the sealing of equipment, improving production efficiency and reducing risks. At present, helium mass spectrometer leak detectors have been widely used in many fields, providing solid guarantee for safe production in various industries.