Test device and test method for long-distance water diversion channel circulating water flow freezing model

Abstract

The invention provides a test device and a test method for a long-distance water diversion channel circulating water flow freezing model. The test device comprises a U-shaped flow channel, a water tank, a water pump, and a variable frequency control cabinet. The U-shaped flow channel comprises two sections of straight water conveyance flow channels and a section of 180 DEG arc-shaped water conveyance flow channel. According to the test device and the test method for the long-distance water diversion channel circulating water flow freezing model, a circulating flowing water flow is formed in the U-shaped flow channel by the water tank and the water pump; the water flow speed can be adjusted by the variable frequency control cabinet to guarantee the running stability of the water flow; and long-distance water diversion channel water conveying process in winter and cold environment can be simulated, and a model test platform is provided for researching the freezing characteristic law andthe ice melting mechanism of long-distance channel engineering under different water delivery flow rates.

Description

technical field [0001] The invention relates to a law test on freezing characteristics of water diversion channels, in particular to a freezing model of long-distance water diversion channel circulating water flow in a cold environment. Background technique [0002] The winter water transfer of water diversion channels is an important measure to improve the guarantee rate of water supply. The main problem of winter water transfer is the freezing of channel water flow. On the one hand, the freezing of canal water will reduce the water delivery volume, and on the other hand, it will cause ice to block the water flow of the canal, which will endanger the safety of canal operation. Long-distance water delivery channels generally refer to channels over 100 km in length. The flow of long-distance water delivery channels is generally larger and the water flow is more stable. Therefore, it is of great significance to study the law of water flow freezing. [0003] At present, many c...

AI Technical Summary

Problems solved by technology

Although these methods have been applied to a certain extent in actual engineering, there is still a lack of research on the freezing process and ice-melting mechanism of water flow in the channel under the low ambient temperature in the alpine region, and it is necessary to construct a corresponding channel water flow freezing model

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