Batch steel pipe pressure test device

Abstract

The batch steel pipe pressure test device of the present invention relates to a steel pipe pressure test device, which includes a pressure test table, a pressure test manifold, a jacking clamping device, a pressure test tube positioning device, and a pressure test pump. On both sides of the pressure test table and opposite to the confluence pipe I II, there is a relatively set pressure test pipe seat on the inner side of the confluence pipe I II, and the jacking and clamping device includes a fixed baffle I II, a jack, a jacking steel plate, and a welded half-ring plate , the fixed baffle Ⅰ is welded on the pressure test bench and located outside the manifold Ⅰ, the jack, the jacking steel plate, and the welded half-ring plate are sequentially arranged between the fixed baffle Ⅰ and the manifold Ⅰ from outside to inside, and the fixed baffle II Set on the outside of the confluence pipe II, the jack transmits the thrust to the confluence pipe I through the jacking steel plate and the welded half-ring plate, so that the pressure test steel pipe is clamped and sealed in the pressure test pipe seat between the confluence pipe II and passed through the pressure test pipe The positioning device locates the middle part of the steel pipe. The invention has the advantages of high pressure testing speed, simple operation, low operation cost and the like.

Description

technical field [0001] The invention relates to a steel pipe pressure test device, in particular to a device capable of performing steel pipe pressure test in batches. Background technique [0002] Conventional size preheaters, heat exchangers and other equipment contain hundreds of heat exchange tubes, and the heat exchange tubes need to be hydrostatically tested before installation. The conventional heat exchange tube pressure test method is to weld multiple heat exchange tubes in series to form a long pipe, and weld blocking plates at both ends of the long pipe for pressure test or a single pipe for separate pressure test. The shortcomings of conventional pressure testing mainly include: (1) complex process and low construction efficiency, the joints need to be welded when the pipeline is connected, and the joints need to be cut after the pressure test; (2) the construction cost is high, the waste of resources is serious, and the pipeline The welding and cutting of the j...

AI Technical Summary

Problems solved by technology

The shortcomings of conventional pressure testing mainly include: (1) complex process and low construction efficiency, the joints need to be welded when the pipeline is connected, and the joints need to be cut after the pressure test; (2) the construction cost is high, the waste of resources is serious, and the pipeline The welding and cutting of the joints will cause a lot of waste of human resources and material resources, which is not conducive to the purchase of heat exchange tube base materials with customized lengths. The repetition rate of individual pressure test operations for a single pipe is high, labor intensity is high, and operating costs are high.

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