Combined type plastic film leak hunting device

Abstract

The invention relates to a combined type plastic film leak hunting device, and belongs to the technical field of film leak hunting and detection. The device comprises a pair of substrates and a leak hunting plate, substrate grooves are formed on side surfaces of the substrates faced to the leak hunting plate, substrate sponge mat avoiding cavities, a plurality of substrate air drains and air holes are arranged on the center of the substrate grooves, substrate sealing strips are arranged on all around of the substrate sponge mat avoiding cavities, substrate sponge mats are arranged in the substrate sponge mat avoiding cavities, and substrate joints are arranged on one side wall of the substrates; the leak hunting plate forms leak hunting plate grooves on two matched surfaces of the pair of substrates symmetrically, leak hunting plate sponge mat avoiding cavities, a plurality of leak hunting plate air drains and leak hunting plate air holes are arranged on the center of the leak hunting plate grooves, leak hunting plate sealing strips are arranged on all around of the leak hunting plate sponge mat avoiding cavities, leak hunting plate sponge mats are arranged in the leak hunting plate sponge mat avoiding cavities, and leak hunting plate joints are arranged on one side wall of the leak hunting plate. According to the invention, the device can simultaneously detect a plurality of plastic films, so that the leak hunting efficiency is high; the sealing capacity is good, and the leak hunting precision is high; the device can be conveniently detached, so that the to-be-detected plastic film can be protected from damage.

Description

technical field [0001] The invention belongs to the technical field of film leak detection and detection, and in particular relates to a combined plastic film leak detection device. Background technique [0002] In order to meet the industry's demand for zero porosity tolerance of plastic films, such as: liquid flow batteries, proton exchange membranes for fuel cells, carbon plates, etc., it is necessary to perform leak detection on the above films. [0003] In the prior art, for example, "a thin film leak detection device and detection method" introduced by the Chinese invention patent application publication number CN102297748A includes a grooved base, an orifice plate or a steel screen as a support, and a hollow annular On the upper cover, the inner wall of the groove is provided with an air inlet hole through the base. The annular upper cover and the base are locked by bolts and nuts, and the orifice plate or steel screen is pressed between the base and the annular upper...

AI Technical Summary

Problems solved by technology

[0004] Judging from the technical status quo of the industry, although the thin-film leak detection device has made some breakthroughs in structural design and performance, there are still some difficult problems or deficiencies, such as the two patents listed above. The leak detection device can only detect one film product at a time, which has low efficiency, high detection cost, poor accuracy, and is easy to damage the tested material, which cannot meet the needs of industrialized mass production

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