APPARATUS FOR TESTING A LEAK OF VACUUM PIPE

摘要

The present invention relates to a leak testing device for a vacuum pipe for testing a leak from the vacuum pipe (50) which includes a helium storing device (100) in which helium is stored; a helium injector (200) with an injection port (210) through which the helium transferred from the helium storing device is injected; a sucking device (300) of which the inside is connected to the injection port (210) and which sucks ambient air of a portion where a leak of the vacuum pipe (50) is tested; and a helium sensing device (400) which is installed inside the vacuum pipe (50) and which senses helium if helium exists inside the vacuum pipe (50).