A kind of ice-water heat exchange coefficient experimental device and measuring method

A technology of heat exchange coefficient and experimental device, which is applied in the field of experimental device and measurement of ice-water heat exchange coefficient, and can solve the problems of unreported, slow water flow, difficult to directly transplant and adopt, etc.
CN103604827BActive Publication Date: 2015-09-16SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2015-09-16

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Abstract

The invention provides an ice water heat exchange coefficient experimental apparatus which comprises a water tank 1, a water pump 3, a gate valve 4, a thermoregulator 5, a current meter 6, an ice thickness change measuring instrument 7 and a temperature recorder 8, wherein the water pump 3, the gate valve 4 and the thermoregulator 5 are sequentially connected through a pipeline 2 and form a loop; measurement probes of the current meter 6 and the temperature recorder 8 are positioned in the water tank 1; a measurement probe of the ice thickness change measuring instrument 7 is positioned in an ice layer 19 and water in the water tank. The invention also provides a method for measuring an ice water heat exchange coefficient by utilizing the device. The device well simulates reservoir icing and low-flow speed water flow conditions, acquires an ice water heat exchange coefficient of a corresponding reservoir and provides a design basis for water conservancy projects, also avoids the difficulty of developing reservoir ice water heat exchange coefficient prototype measurement in a rushing frigid zone reservoir area and provides great convenience and implementation possibility for research.
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Description

technical field

[0001] The invention belongs to the field of ice-water heat exchange coefficient experimental device and measurement technology, in particular to an experimental device and measurement method for ice-water heat exchange coefficient with flow velocity below 0.1m / s. Background technique

[0002] At present, the construction of water conservancy projects in my country is gradually advancing to high-altitude frigid regions. One of the problems that must be considered in the construction of reservoirs in frigid regions is the freezing of reservoirs in winter. Whether drift ice or stable ice sheets are formed after the reservoir freezes, it will first directly affect the winter reservoir shipping, hydropower generation, and canal system transportation. The safety of water, etc., especially after serious ice conditions such as ice jams and ice dams, will also lead to natural disasters such as flooding, which will bring significant losses to people's property and lif...

Claims

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