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Water temperature stratification dynamic experimental device

An experimental device and water temperature technology, applied in the hydraulic model, etc., can solve the problems of short effective experimental time, water circulation, heating, and long time-consuming stabilization, etc., to achieve extended effective experimental time, stable and reliable operation, and small external interference Effect

Active Publication Date: 2013-06-12
CHINA THREE GORGES CORPORATION
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  • Abstract
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Problems solved by technology

However, the actual experiment found that the device has the following shortcomings: 1) The experimental device can only simulate the temperature distribution of the reservoir in a static (no outflow) state, and the actual research needs to analyze the outlet temperature under different engineering measures, and the water flow must be circulated; 2) If the device is directly added to the water outlet and converted into a circulation device, it will take a long time to heat and stabilize, which cannot meet the experimental requirements; not only that, the external environment has a great influence on the temperature distribution of the experimental area, and the actual effective experimental time is too short ; To study the distribution of water temperature in the state of dynamic water, the stability of the water tank during the experiment should be large enough and the external interference should be small enough

Method used

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Embodiment

[0030] Before the experiment, according to the model similarity criterion, the temperature difference between the surface and bottom of the model reservoir should be equal to that of the actual reservoir, and determine the initial distribution of the water temperature in the experimental tank 11, the number of layers and the maximum heating temperature on the surface. For example, the temperature difference between the surface and bottom of the reservoir to be simulated is 10°C, and the normal indoor water temperature is 18°C, then the temperature of the surface water body of the tank should be 28°C, if the layered heating system 10 has 5 layers and is arranged equidistantly in the vertical direction, then according to the temperature distribution required by the experiment, by The temperature set by the temperature control device 23 from top to bottom is: 28°C, 25°C, 22°C, 20°C, 19°C, the lowest layer is normal temperature 18°C, and the temperature of the water temperature prot...

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Abstract

The invention relates to a water temperature stratification dynamic experimental device, which is characterized by including an external recycle pool, a plurality of internal recycle water tanks positioned downstream the external recycle pool, a distribution-type water supply control system positioned downstream the internal recycle water tanks, an experiment water channel positioned downstream the distribution-type water supply control system, and a backwater system positioned downstream the experiment water channel. The water temperature stratification dynamic experimental device realizes cyclic utilization of heated water, operates stably and reliably, is low in energy consumption, is little interfered by the outside, greatly prolongs the effective experimental period, and can be used in simulation experiments for temperature stratification of deep reservoirs and for research on related improvement measures.

Description

technical field [0001] The invention relates to a dynamic experiment device for water temperature stratification. Background technique [0002] The construction of the reservoir has brought a series of comprehensive benefits such as flood control, power generation, irrigation, shipping, aquaculture and tourism. However, while the reservoir exerts huge social and economic benefits, it will also have a certain impact on water quality and ecological environment. It is one of the important basic indicators. After the reservoir is impounded, the temporal and spatial distribution of the original natural river water temperature will be changed. Especially after the completion of large-scale reservoirs, the water temperature parameters, flow state and heat transport process of the water body in the reservoir area will also change accordingly, forming a unique water temperature layered distribution characteristic. , may have a significant impact on the downstream ecological environm...

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Application Information

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IPC IPC(8): E02B1/02
Inventor 蒋定国戴会超刘伟王煜别玉静唐梦君
Owner CHINA THREE GORGES CORPORATION
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