HJ AUTOMATIC CONTROL TECHNOLOGY CO., LTD
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Sniffer Type Helium Leak Testing Equipment For Air Conditioner Heat Exchanger
General Information:
The Systems manufactured by HeJin use Helium as tracing gas for detecting leaks.
This test allows measuring the defined the leak position on the component/test piece. In this case the Test piece to Be Tested is connected to the helium filling joint. Then the Test piece are pressurised with helium. Tracing gas come out from test piece through leaks and is detected and measured by sniffer connected to Helium Mass Spectrometer. Helium Leak Testing Equipment
System Description:
The system proposed has a totally automatic cycle with manual load and unload of the Test pieces.
The Test Cycle can be described in the following way:
Technical Indicators:
| Components to be tested | Air conditioner heat exchanger |
| Gross Leak Test | Nitrogen |
| Tracing Gas for Fine Leak Test | Helium |
| Alarm Leak Rate | 3.34x10-5mbar.L/s |
| Pressure for Leak Test | 40-50bar |
| Scanning | Manually sniffing |
| Evacuate, filling and recovery connector | 1 stations, 2 sets of joints per station (only 1/4 thread, customer-supplied joints) |
| Working Bench Size | 1200mmX900mm |
| Recovery | Recovery Rate ≥95% Helium Leak Testing Equipment |
