Structure and method for improving safety valve leakage acoustic emission signal intensity

The invention provides a structure and method for improving safety valve leakage acoustic emission signal intensity.The structure is a split type recoil disc structure, the split type recoil disc comprises a recoil disc body (5) and a recoil disc sleeve (6), a cavity structure matched with a valve clack is formed in the recoil disc body (5), and external threads are machined on the periphery of the lower end of the recoil disc body (5); the recoil disc sleeve (6) is of an annular structure, internal threads are machined on the inner ring of the annular structure, the recoil disc body (5) and the recoil disc sleeve (6) are connected in a threaded mode, and an annular cavity is formed between the recoil disc body (5) and the recoil disc sleeve (6) by rotating the threads. And the opening size H of the annular cavity reaches the required height by rotating the threads. Compared with an integrated recoil disc, the split recoil disc provided by the invention has the advantages that the annular cavity structure is