Fuel double-wall pipe leakage detection device and detection method

Abstract

The invention discloses a fuel double-wall pipe leakage detection device and a detection method. The detection device comprises an integrated block, an oil inlet hole is horizontally arranged at a left end surface of the integrated block, a first process hole is arranged at an upper end of the oil inlet hole in a parallel way, a second process hole is vertically arranged at an upper end surface ofthe integrated block, an oil outlet hole is vertically arranged at a lower end surface, and the oil outlet hole and the second process hole respectively communicate with the first process hole and the oil inlet hole; each of the oil inlet hole and the oil outlet hole is connected with a pipe joint, and a throttle valve is arranged at a right end of a junction of the oil inlet hole and the oil outlet hole, and an overflow valve is arranged at the junction of the first process hole and the second process hole; a pressure sensor is arranged at a front end surface of the integrated block and is connected into the first process hole. The detection device disclosed by the invention has the advantages that the device is simplified in structure, reduced in space, and convenient for operation; thedetection on the fuel double-wall pipe leakage is realized through the cooperative use of the throttle valve and the overflow valve, and meanwhile, the pressure-reduced discharging is performed on the leaked oil, thereby preventing large pressure from damaging the detection device.

Description

technical field [0001] The invention relates to the technical field of fuel oil leakage detection, in particular to a fuel oil double-wall pipe leakage detection device and detection method. Background technique [0002] As a gas supply pipe for a marine natural gas engine, it must meet the relevant requirements of the classification society. The classification society requires that the natural gas supply pipe for ships must have a double-wall structure. Under normal circumstances, the gas is transported through the inner pipe. If a leak occurs, the leaked gas will not enter the external environment, but enter the outer pipe; in addition, the classification society It is also required to detect whether there is leakage in the inner layer pipe, while the traditional leak detection device has complex pipelines, a large workload for assembly and disassembly, takes up a large space, and is inconvenient to operate. Contents of the invention [0003] The technical problems to b...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the pipeline of the traditional leakage detection device is complicated, the workload of assembly and disassembly is large, the space is large, and the operation is inconvenient

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