Experimental device for forming jet flow by drifting water with high-speed airflow and generating supersaturated total dissolved gas

A technology of total dissolved gas and high-speed air flow, applied in the direction of testing water, material inspection products, etc., can solve the problem that the generation situation cannot be simulated, and achieve the effect of small investment in materials and equipment, convenient installation and measurement, and low cost.

Inactive Publication Date: 2010-08-04
SICHUAN UNIV
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Problems solved by technology

However, regarding the generation of supersaturated total dissolved gas when the dam discharges in different ways, especially when the discharge method of a high dam is a high-speed jet flow, the different inflow saturations in front of the dam cannot affect the generation of supersaturated total dissolved gas below the dam. simulation

Method used

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  • Experimental device for forming jet flow by drifting water with high-speed airflow and generating supersaturated total dissolved gas
  • Experimental device for forming jet flow by drifting water with high-speed airflow and generating supersaturated total dissolved gas
  • Experimental device for forming jet flow by drifting water with high-speed airflow and generating supersaturated total dissolved gas

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Embodiment 1

[0029] Instruments and equipment used in the experimental device for the high-speed air flow carrying water to form a jet to generate supersaturated total dissolved gas of the present invention:

[0030] 1. Air compressor 3 is a TA-65 piston air compressor produced by Kunshan Jincheng Electromechanical Equipment Co., Ltd.;

[0031] 2. Flowmeter 5 is LZB-15 glass rotameter produced by Shanghai Yinhuan Flowmeter Company;

[0032] 3. The total dissolved gas measuring instrument 10 is a TDG measuring instrument produced by YSI Company of the United States.

[0033] The experimental steps and operation process of the high-speed air flow carrying water to form a jet to generate supersaturated total dissolved gas in the present invention:

[0034] first press figure 1The structure is connected with various instruments and components. This experiment is divided into two working conditions: free jet flow on the water surface and submerged outflow;

[0035] 1. Working condition 1 is ...

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Abstract

The invention relates to an experimental device for forming jet flow by drifting water with a high-speed airflow and generating supersaturated total dissolved gas, which comprises a water column, a flowmeter, an air compressor, valves, a total dissolved gas determinator, a water pump, a jet pipe, a nozzle and a nozzle hole. The water column is designed into a main water column and an auxiliary water column, the nozzle hole in the wall of the main water column is connected with a rubber hose, a third valve is mounted on the rubber hose and communicated with the auxiliary water column, the air compressor is connected with one end of the flowmeter by a first valve, the other end of the flowmeter is connected with the jet pipe by a three-way pipe, the jet pipe is connected with the nozzle which is arranged in the main water column, the three-way pipe is connected with the water pump by a second valve, the water pump is arranged in the auxiliary water column by a pipeline, a fourth valve is mounted at the bottom of the auxiliary water column, a fifth valve is mounted at the bottom of the main water column, and a probe of the total dissolved gas determinator is inserted in the main water column. The experimental device can be used for simulating the submerged discharge, the free discharge and the total dissolved gas saturation process of different front-dam flows to research the relation between the supersaturation level and the front-dam total dissolved gas saturation.

Description

technical field [0001] The invention relates to a water body total dissolved gas (TDG) supersaturation technology, in particular to an experimental device for studying the downstream high-speed air flow carrying water to form a jet to generate supersaturated total dissolved gas when a dam discharges water. The invention belongs to the technical field of supersaturated total dissolved gas in hydraulic engineering. Background technique [0002] In many large-scale water conservancy projects in my country, according to their water volume dispatching requirements, water conservancy projects need to discharge water to downstream rivers through spillways, flood discharge tunnels and other discharge structures. The high-speed water flow generated when the dam discharges water is accompanied by a large amount of aeration. This large-flow, strongly aerated water flow will appear supersaturated dissolved gas in the downstream channel of the dam, and this supersaturated dissolved gas w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
Inventor 李然曲璐李嘉李克锋邓云易文敏冯镜洁康鹏
Owner SICHUAN UNIV
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