A continuous automatic observation device and installation method for the change law of the double thermocline of the reservoir
A technology of changing rules and automatic observation, applied to measuring devices, thermometers, measuring heat, etc., can solve problems such as being easily affected by water flow/drift, unstable structure, small application range, etc., to achieve water flow/drift, accurate High degree of effect and wide application range
Active Publication Date: 2017-11-21
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD +1
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Problems solved by technology
[0003] The present invention aims to provide a continuous automatic observation device and installation method for the change law of double thermoclines in reservoirs, so as to solve the problems of unstable structure, poor durability and susceptibility to water flow / drift existing in the existing thermocline observation technology of reservoirs , poor accuracy, poor reliability, and small scope of application
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[0028] Example: Hongshuihe Longtan Hydropower Station
[0029] Hongshuihe Longtan Hydropower Station is a landmark project for the country to implement the strategy of western development and "power transmission from west to east". It is the backbone project and leading reservoir of Hongshuihe hydropower development. and other comprehensive benefits. The normal storage level of Longtan Hydropower Station reservoir is 375m, the corresponding storage capacity is 16.21 billion m3, the dead water level is 330m, and the corresponding storage capacity is 5.06 billion m3 3 , the reservoir has annual regulation capacity. The elevation of the crest of the dam is 382m, and the elevation of the bottom of the dam in front of the dam is 210m.
[0030] According to the vertical prediction results of the water body in the reservoir area, it can be known that from December to February each year, the vertical water body of the reservoir is close to the same temperature distribution, and the ...
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Abstract
The invention discloses a device for continuously and automatically observing changes in double thermocline layers of a reservoir and an installation method thereof. Several groups of observation units are installed, and each observation unit includes two water temperature probes. There are a number of observation holes matching the water temperature probes on the steel pipes. A driven pulley is installed on the top, and the steel cable is wound on a drive pulley installed on the top of the dam body after winding around the driven pulley. The invention has the advantages of stable structure, strong durability, not easily affected by water flow / drift, high accuracy, strong reliability, wide application range and the like.
Description
technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering monitoring, in particular to a continuous automatic observation device and an installation method for the variation law of double thermocline layers of a reservoir. Background technique [0002] Water temperature stratification in deep-water reservoirs is a common and widely concerned hydropower environmental problem. Reservoir water temperature stratification refers to the regular vertical stratification structure formed by reservoir water temperature after the water level in the reservoir area rises and the flow velocity slows down, the thermodynamic conditions of the water body change. Common stratified reservoirs are vertically divided into thermocline layer, thermocline layer and hysteresis layer: the temperature layer is near the water surface, the water temperature is mainly affected by air temperature and light, and the vertical gradient of water temper...
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IPC IPC(8): G01K13/00
Inventor 常理赵再兴魏浪陈国柱王志光杨桃萍张南波唐忠波李鑫王海磊周超
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD