Automatic acquisition device for concrete gas permeation flow

Abstract

The invention relates to an automatic acquisition device for concrete gas permeation flow. The automatic acquisition device is characterized by comprising one or more flow acquisition systems, each flow acquisition system comprises one or more gas permeation flow measuring pipeline and a controller; two ends of each gas permeation flow measuring pipeline are connected with a gas inlet and a gas outlet in parallel, a solenoid valve and a flow meter are sequentially arranged on each gas permeation flow measuring pipeline, each solenoid valve and each flow meter are electricallyconnected with the corresponding controller, each controller is further electrically connected with a computer, and the computer acquires gas permeation flow data through the controllers, judges the gas permeation flow state according to gas permeation flow data and a preset gas stable flow criterion and controls opening or closing of corresponding gas permeation flow measuring pipelines through the controllers. The automatic acquisition device can be widely applied to fields of test research of gas permeability of cement-based pore materials and the like as well as actual durability engineering detection.

Description

technical field [0001] The invention relates to an automatic collection device, in particular to an automatic collection device for concrete gas permeation flow. Background technique [0002] At present, the gas flow meter of the gas permeability device of concrete material generally uses a soap film flowmeter, which is limited to the principle of manual operation. The soap film flowmeter test method can only measure discrete flow data, and the obtained flow data is difficult to accurately correspond to the seepage time. , so the continuous change of the gas flow in the unsteady process cannot be obtained, that is, the flow process of the gas in the concrete material cannot be monitored in real time; Whether it reaches a stable flow state, the test efficiency and accuracy are low. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide an automatic collection device for concrete gas permeation flow rate with high...

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Problems solved by technology

[0002] At present, the gas flow meter of the gas permeability device of concrete material generally uses a soap film flowmeter, which is limited to the principle of manual operation. The soap film flowmeter test method can only measure discrete flow data, and the obtained flow data is difficult to accurately correspond to the seepage time. , so the continuous change of the gas flow in the unsteady process cannot be obtained, that is, the flow process of the gas in the concrete material cannot be monitored in real time; Whether it reaches a stable flow state, the test efficiency and accuracy are low

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