Experimental device for simulating lake eruption

Abstract

The invention relates to an experimental device for simulating lake eruption. The experimental device comprises a visual vessel system I, a pressure vessel system II, two carbon dioxide gas cylindersand a camera system IV, wherein the visual vessel system I comprises a visible vessel, a visible window is arranged on a side face of the visible vessel, a light source and a camera are arranged at the visible window, an upper pressure sensor, a water inlet valve and a water inlet are provided, and a carbon dioxide gas is injected from the first carbon dioxide gas cylinder into the bottom of the visible vessel through an inlet valve of the first carbon dioxide gas cylinder; the pressure vessel system II comprises a pressure vessel, and a third pressure sensor for measuring the pressure of thepressure vessel; the top of the visible vessel is connected with the pressure vessel through an exhaust pipeline, an exhaust port is arranged on the exhaust pipeline, and an exhaust valve is respectively arranged on the two sides of the exhaust port; the exhaust pipeline where the exhaust port and the two exhaust valves are located is provided with a bypass; and the second carbon dioxide gas cylinder communicates with the pressure vessel through the inlet valve. The experimental device provided by the invention can perform visual observation, and has high operability.

Description

technical field [0001] The invention relates to an experimental device for simulating lake eruption. Background technique [0002] Lake eruption is a hydrodynamic phenomenon of instantaneous violent eruption of large-volume still waters that has yet to be further studied. The most typical example of lake eruption is the catastrophic eruption of Lake Nyos in Cameroon, Africa, in the early morning of August 21, 1986. The incident killed more than 1,700 people. The carbon dioxide deep underground escapes into the lake water through rock cracks in the earth's crust. Due to the high pressure in the deep water area of ​​the lake, the carbon dioxide is dissolved in it by high pressure. In the case of external disturbance or rise of carbon dioxide solution, a large amount of carbon dioxide will be precipitated from the water in a short time, forming an eruption. To avoid similar disasters, it is necessary to study the process of carbon dioxide dissolution in water and the process ...

AI Technical Summary

Problems solved by technology

The problem with this experimental device is that the diameter of the glass tube is small. After the bubbles are generated, the bubbles are squeezed against each other. The development of the bubbles is seriously affected by the wall. It cannot accurately and effectively simulate the deflation process of the carbon dioxide solution in the lake, and the deflation process cannot be controlled. , the glass tube and the low-pressure chamber are connected instantly when the metal film breaks, which is inconsistent with the natural situation

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