In most cases, the Helium Leak Detection for New Energy Industry is not located directly at the detector entrance. The chamber is connected to the inlet via a vacuum line. The type of vacuum line used can affect pump downtime.The property of a vacuum tube to allow gas to flow in the presence of a vacuum is called conductivity. With higher conductivity, the gas moves faster from the chamber to the leak detector.
In vacuum there are generally four gas flow regimes, two of which are the most important: viscous and molecular. The viscous regime occurs during the initial pumping phase while the molecular regime is reached when the leak detector is in the exact leak test mode.
The vacuum regime in the vacuum tube generally transitions from the viscous regime to the molecular regime at the end of the leak test cycle as the atmospheric pressure drops to 10-3 mbar.
The corresponding formula for conductivity in the viscous and molecular range of a vacuum line is shown in Figures 4 and 5.
The conductivity is higher in the molecular range than in the viscous range, so care should be taken when choosing a blank line. The conductance of air and helium at the molecular level can be easily measured as it depends on the size of the vacuum line.
ABOUT LACO Technologies, Inc.
LACO Technologies, Inc.is a leading manufacturer of vacuum and leak detection systems. Driven by innovation, service and quality, we strive to be the best supplier of standard and custom vacuum and leak testing solutions.
Vacuum Chamber Helium Leak Detection was founded in 1975 and is headquartered in Salt Lake City, Utah. The company serves customers in the United States and around the world.
LACO, an engineering company, is uniquely positioned to provide innovative solutions for vacuum and leak testing applications. We work with a variety of customer applications and strive to develop the right solution to help our customers achieve their goals.
The particle accelerator LHC has a circumference of 27 km and collides with beams of protons or ions at almost the speed of light. The LHC is the largest vacuum system in the world. Ultrahigh vacuum (UHV) is required for accelerated particles to move along light lines. In order to keep the pressure as low as possible, it is important to keep the leak rate as low as possible.
The leak detector ASM 340 is able to detect leaks up to < 5x10-13Pam3/s. Thanks to the integrated booster pump with a capacity of 15 m3/h, it is possible to check the tightness of small and large volumes. The patent-pending feature allows starting at 100 hPa, which is useful for large systems like the LHC. The leak detector is also very compact and can be handled under the LHC's cryostats and beamlines. Helium leak detectors are based on a 1958 Dr. Becker von Pfeiffer
Vacuum patented the design, which provided for the use of a turbopump as a kind of filter and protective element in front of the mass spectrometer.
Selecting the New Energy Battery Pack Liquid Cooling Plate Detection for the needs of a production leak testing application is a major engineering challenge. In general, there are many methods for leak detection.
However, when the required leak rate is between 10-6 and 10-10 atm.cc/s, tracer gas methods are the best choice to get reproducible and accurate results. The Helium Leak Detector is the right option for leaks in the 10-6 to 10-10 atm range.cm3/s.
https://www.cnheliumleaktest.com/html/products/automotiveindustry/1002.html