Seal and bulge test device of shell of gas flow meter

Abstract

The invention relates to a seal and bulge test device of a shell of a gas flow meter, which consists of a pedestal, a ring support, a clamp and two compaction bowls, wherein the ring support is vertically and fixedly arranged on the upper surface of the pedestal, the ring support is provided with radial air inlets, and two lateral surfaces of the ring support are provided with mounting ring tables axially clamped inside an open end of a work piece; two end parts of a clamp are oppositely provided with top cores respectively, wherein at least one top core is an axially adjustable; the lateral surfaces of the two compaction bowls are provided with positioning centers; and the clamp can clamp and arrange the work pieces at two sides of the ring support through the two compaction bowls. The test device has the advantages of scientific and reasonable structure design, simple operation, convenient use and low cost, and can effectively reduce the labor intensity of sealability test of the shell of the gas flow meter, improve seal and bulge test efficiency and simultaneously ensure the test accuracy; and the seal and bulge test device has higher innovation and is suitable for popularization and application.

Description

technical field [0001] The invention relates to a sealing test tool, in particular to a sealing pressure test device for a casing of a gas flow meter. Background technique [0002] The gas flow meter is a widely used gas metering device, which requires extremely high sealing to ensure the safety of gas transmission and use. Therefore, the sealing test of the gas flow meter casing is a must in the production process. Indispensable inspection steps. The existing test method is usually a pressure test, that is, the two halves of the gas flow meter are sealed and buckled and placed in the water tank, and the inside of the shell is pressed through the gas pipeline (the design pressure is 12 atmospheres, and the test pressure is 9 atmospheres). Atmospheric pressure, the actual use of six atmospheric pressure), the pressure holding time is more than 15 minutes, and the multiple holes made on the joint surface of the shell and the end surface of the shell are observed to be qualifi...

AI Technical Summary

Problems solved by technology

However, the two halves of the gas flowmeter in the above-mentioned pressure test are usually connected by bolts uniformly distributed around the circumference, which has many defects in the test operation process: first, the connection method of connecting bolts is easy to be caused by the gap between the bolts. The uneven tightening force causes gas leakage, which affects the accuracy of the test; in addition, the process of installing and tightening the bolts one by one is extremely cumbersome, time-consuming, labor-intensive, and labor-intensive, especially for batch test operations in the production process Its disadvantages are more prominent

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