Gas explosion simulation test device and system in the space of underground utility tunnel

Abstract

The invention provides a gas explosion simulation test device and system in the space of an underground comprehensive pipe gallery. The device includes: a test pipeline, the two ends of the test pipeline are connected, and at least one of a basic pipeline, an observation pipeline and an explosion relief pipeline is included. The basic pipeline, the observation pipeline or the explosion-venting pipeline are connected in any combination and order; the test pipeline of the present invention is connected by a flange, the length of the test device can be changed according to the test needs, the number and position of the explosion-venting pipeline can be selected, and through the reserved through hole, It realizes the flexible selection of inflatable position, realizes the test simulation under various working conditions, obtains the load of the gas explosion in the test pipeline, or connects the test pipe gallery to measure the structural response of the pipe gallery.

Description

technical field [0001] The invention belongs to the technical field of combustible gas explosion tests, in particular to a test device capable of simulating gas explosions inside urban underground comprehensive pipe galleries. Background technique [0002] As a shared tunnel for municipal pipelines, the underground comprehensive utility gallery realizes the comprehensive utilization and resource sharing of urban underground space, well solves the phenomenon of "pull link" in municipal construction, and improves the safety of municipal pipeline operation and the convenience of maintenance . At present, the underground comprehensive utility corridor has become an important infrastructure for building a new type of sustainable development city. In the context of my country's rapid urbanization, pilot projects for the construction of underground comprehensive pipe corridors have been launched one after another, and the development of the industry has entered the take-off stage....

AI Technical Summary

Problems solved by technology

[0004] At present, many scholars have conducted extensive and in-depth research on the gas explosion process and its destructive effects on engineering structures, and have also developed corresponding test devices for combustion and explosion of premixed gas in pipelines, but such test devices also have certain limitations. :

[0005] 1. This type of test device cannot freely select and assemble the required pipeline segments, so as to realize the transformation of pipeline length, observation window position and explosion vent hole position;

[0006] 2. It is difficult for this type of test device to change the size of the explosion venting area, the location of the explosion venting, and the direction of the explosion venting;

[0007] 3. This type of test device cannot ensure that the inside of the pipeline is completely flat and smooth, and it is also difficult to change the form, position and number of obstacles in the pipeline;

[0008] 4. It is difficult for this type of test device to realize the free change of the volume of combustible gas in the pipeline;

[0009] 5. This type of test device can only obtain the load of the gas explosion in the test pipeline, but cannot splice the pipe gallery model, and cannot study the structural dynamic response of the pipe gallery when the gas explosion in the pipeline

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