Helium Recovery Rate ≥80% Gas Leak Detector (Piston Accumulator) with Leak Testing Equipment
Working Principle with Leak Testing Equipment:
I. Preliminary Preparation
The operator prepares the workpiece to be tested and ensures that there is a clear barcode or QR code label on it.
Check the working status of equipment such as the scanner, vacuum pump, leak detector, and helium cylinder to ensure they are functioning properly. Proceed to the next step after confirming no malfunction.
II. Scanning and Starting the Workpiece
Use the scanner to scan the barcode or QR code on the workpiece. The computer system will immediately identify and display the information of the scanned workpiece.
According to the system prompt, the operator places the workpiece into the designated fixture of the testing box, ensuring it is firmly fixed and positioned correctly.
Press the start button. The vacuum chamber automatically closes, and the system begins to execute the preset testing process.
III. Workpiece Testing and Vacuuming
After the system starts, the vacuum pump begins to evacuate the workpiece. At the same time, the pressure sensor detects the vacuum level inside the workpiece.
If the vacuum level inside the workpiece reaches the set value within the set time, it indicates that there is no significant leak in the workpiece, and the following procedures continue; otherwise, it is determined as a significant leak, and a warning signal is issued, ending the testing process.
IV. Background Noise Suppression and Helium Charging
Before the workpiece testing, the leak detector first detects the background signal inside the vacuum chamber.
If the background signal is within the set range, the system will suppress the background signal to reduce its impact on subsequent testing and ensure the accuracy of the testing.
V. Micro-leak Detection and Helium Recovery
Charge helium into the workpiece and use a booster pump to pressurize it to the set value.
During the set leak detection time, the leak detector detects the helium signal inside the vacuum chamber of the workpiece. If the detected helium signal exceeds the set micro-leak threshold, it is determined as a micro-leak, and the micro-leak indicator light turns on; otherwise, the qualified indicator light turns on, indicating that the workpiece testing is qualified.
After the leak detection, the helium recovery valve opens, and the system recovers the helium inside the workpiece into the helium recovery device. When the recovery volume reaches the set value, the valve closes.
VI. Workpiece Removal and Ending
The vacuum chamber automatically opens, and the operator removes the tested workpiece from the fixture.
The system records the testing results and prepares for the next workpiece testing. If Chambers A and B work in tandem, when one chamber completes the testing, the other chamber begins to execute the testing process.
The entire testing process is achieved through automated equipment and system control, realizing rapid and accurate testing of workpieces, improving testing efficiency and accuracy. At the same time, the tandem testing function further improves testing efficiency, making the entire production line more efficient.
Product Parameters with Leak Testing Equipment:
| Vacuum Chamber | Each vacuum chamber tests one workpiece |
| Micro-leak Detection Gas | Helium |
| Workpiece Leak Detection Gas | Nitrogen |
| Workpiece Sealing Method | Manual |
| Leak Detection Pressure for Major/Minor Leaks | Piston accumulator device ----- 10bar |
| Workpiece Fixture | Fixtures are provided based on the production needs of each machine |
| Alarm Leak Rate | ≤1×10-6 mbar·L/s |
| Production Cycle Time | ≤60 seconds per piece (including workpiece loading/unloading) |
| Helium Recovery Rate | ≥80% |
Product Image with Leak Testing Equipment:
Our advantage service:
We have our own developing and designing team, which ensure our own technological and innovative products for customers.
For any customers who have new idea about some products, just let us know, we can according to your idea provide a unique design of the products.
Technical support:
All our workers are experienced and skilled.
After sale service:
Our working team and sales teams can guarantee a fast and high efficiency after-sale service for our product sold to everywhere of the global.
About Us:
Guangzhou Hejin Automation Control Technology Co., Ltd. is a modern enterprise specialized in the research and development, manufacturing, and sales of technology-intensive industrial equipment. The company's leading products include vacuum helium leak detection equipment, automatic brazing machines for gas/liquid filling and recovery systems, lean production lines, and laboratory testing equipment. These products are widely used in industries such as automobiles, refrigeration, power, home appliances, electronics, pharmaceuticals, plumbing, military, and others. Led by Mr. Li Jianhe, an expert with profound knowledge in vacuum and automated testing equipment, the company possesses its own core technology and holds multiple invention and utility model patents. Relying on a high-level talent team, the company has adopted a new production model focused on development and design, assembly and debugging, as well as after-sales service, and provides products that are suitable for customers' specific usage and technical requirements. Since its establishment, the company has introduced various types of specialized equipment to the market, satisfying domestic market demand while also exporting to countries and regions in America, Europe, Asia, and Africa.
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Helium Recovery Rate ≥80% Gas Leak Detector Piston Accumulator With Leak Testing Equipment Images
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