In the lifeline industries such as petrochemicals, new energy, and aerospace, heat exchangers are like the “hearts” of the systems, and their sealing performance is directly related to production safety and energy efficiency. The Daxin helium mass spectrometer leak detectors independently developed by Anhui Daxin Vacuum Technology, with nanoscale precision detection capabilities, have built a leak-proof defense line for global industrial equipment. This article will take you into the world of hardcore technology of this “industrial stethoscope”.

Helium Leak Detection Principle for New Energy Vehicle Liquid-Cooled Heat Exchangers

I. Leakage Hidden Dangers: An Industry Pain Point Worth Hundreds of Billions
Tiny Leakage = Major Risks: A tiny leakage of 0.1 grams per year in a heat exchanger can lead to a 15% decrease in the energy efficiency of the entire set of equipment. The annual losses caused by leakage in the chemical industry exceed 20 billion yuan.

Dilemmas of Traditional Detection: The water immersion method has insufficient precision, the fluorescent method pollutes equipment, and conventional methods are difficult to detect micro-leaks smaller than 10⁻⁶ Pa·m³/s.

Upgrade of Safety Red Lines: The EU PED directive and China’s TSG 21-2016 regulations have put forward stringent requirements on the leakage rate of pressure vessels, forcing the innovation of detection technologies.

II. Black Technologies of Daxin Series Helium Mass Spectrometer Leak Detectors: Daxin Vacuum Technology’s Way to Break Through
Anhui Daxin Vacuum Technology has been deeply engaged in the field of helium mass spectrometer leak detectors for more than ten years. Its NHJ series helium mass spectrometer leak detectors have become industry benchmarks with three core advantages:

1. Aerospace-Grade Detection Precision
– Sensitivity reaches 5×10⁻¹³ Pa·m³/s;
– Anti-interference capability is increased by 300%;
– 0.1-second rapid response, quickly completing full inspection of large heat exchangers;

2. Industrial-Grade Reliable Design
– Corrosion-resistant and anti-pollution, with a 50% longer service life;
– Wide-range automatic switching technology, supporting full-process coverage from rough inspection to precision inspection;
– Wide temperature range operation, adapting to extreme working conditions;

3. Scenario-Based Solutions
– The solutions have served leading enterprises such as CATL;
– Customized module design, which can be integrated into automated production lines to achieve 100% online detection;

III. Domestic Helium Leak Detector Underdog: The Hardcore Genes of Daxin Vacuum Technology
Technological Accumulation: Led by a senior scientific research team, holding a number of invention patents;

Ecological Layout: Constructing a “equipment + consumables + data services” system, increasing customer repurchase rate by 50%