Special inflator for pipeline leakage diffusion experiment

Abstract

The invention relates to the technical field of gas leakage experiment sampling, in particular to a special inflator for a pipeline leakage diffusion experiment. The special inflator comprises a testbed and a gas pipeline fixed on the test bed, a power part and a sampling feeding mechanism are fixed on the test bed, a gas sampling mechanism is fixed on the outer side wall of the gas pipeline, thepower part is in transmission connection with the sampling feeding mechanism, the sampling feeding mechanism comprises a sample plate, a plurality of sampling pipes are arranged on the sample plate,and the power part can push the sampling pipes to communicate with the gas sampling mechanism. According to the special inflator for a pipeline leakage diffusion experiment, the power part drives thesampling pipes to communicate with the gas sampling mechanism and drives the sampling feeding mechanism to replace the sampling pipes, so that automatic replacement of the sampling pipes is realized,time interval balance between two adjacent times of sampling is realized, equal-interval continuous sampling is realized, and when manual operation is not needed, time and labor are saved, and the sampling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sampling for gas leakage experiments, in particular to a special inflator for pipeline leakage and diffusion experiments. Background technique [0002] In order to detect the change of gas concentration in the gas pipeline when there is a danger of leakage in the gas pipeline during long-term use, so as to set the gas alarm concentration, in order to make timely and effective early warning, and to deal with the occurrence of leakage, it is necessary to set the value of the gas alarm concentration (upper limit value), emergency cut-off concentration setting value, gas detector layout distance, and the number of ventilation in the pipe gallery model pipe are tested experimentally. [0003] For example, the simulation test bench for the pipeline leakage and diffusion of the underground comprehensive pipeline gallery model pipe disclosed in the patent application number 201810209187.4 simulates the working en...

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Problems solved by technology

[0004] However, there are multiple sampling samples in the experiment, so it needs to be used multiple times. Since the syringe after sampling is manually removed and replaced with the next syringe, this will cause a large error in the time interval of each sampling and cannot be carried out. Continuous sampling at equal intervals, and the sampling efficiency is slow in manual operation. In view of this, we propose a special inflator for pipeline leakage and diffusion experiments.

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