A The most commonly used leak detection method for
glove boxes is the oxygen-containing method. In addition to the oxygen-containing method, the following methods can also be used to detect whether there is a leak in the glove box:
1. Soap bubble detection method: Apply soap solution to areas of the glove box where leakage may occur, such as the connection between the
glove and the operating port, the sealing strip of the door, and the pipe interface. If there is a leak, gas will blow out soap bubbles from the leak point, quickly detecting the leak. For the parts that are difficult to apply soap directly, use a spray bottle to spray the soap into a mist for testing.
2. Gas detection instrument method: such as helium leak detector and other gas detection instruments. The helium leak detector is suitable for high-precision detection. Firstly, the glove box is filled with helium gas as a tracer gas, and then a suction probe is used to detect suspicious locations outside the glove box. When the probe detects helium gas, the leak detector will sound an alarm and display information such as leakage rate. If the gas inside the glove box contains special components, such as specific organic gases or other detectable gases, corresponding gas detection instruments can be used for detection.
3. Smoke detection method: Smoke is generated by a smoke generator and introduced into a glove box. Observe whether smoke leaks from a specific location outside the glove box. This method is effective for detecting some hidden leakage channels, such as small cracks, poorly sealed interfaces, etc. Meanwhile, observing the direction of smoke flow can also help determine the approximate location of the leak point.
