Hydraulic automatically-controlled initial rainwater drainage device
An initial rainwater and hydraulic self-control technology, applied in water supply devices, waterway systems, sewage removal, etc., can solve the problems of large abandonment flow, difficulty in emptying the abandonment pool, and large volume of the abandonment pool, and achieve the effect of ensuring normal work.
Inactive Publication Date: 2010-10-06
TONGJI UNIV
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Problems solved by technology
The initial rainwater abandonment often involves two problems: the scale of the abandonment pond and the operation mode: first, if the rainwater collection area is wider, the abandonment flow will be correspondingly larger, and the volume of the abandonment pond will be larger; second, due to the randomness of rainfall , there are certain difficulties in emptying the waste flow pool, especially in places where personnel are inconvenient to reach
Therefore, in places where personnel are inconvenient to reach, such as rainwater collection and utilization of expressway drainage ditches, or rainwater collection and utilization facilities managed by special personnel cannot be set up, it is still impossible to carry out initial rainwater abandonment
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[0023] The initial stage rainwater of the present invention abandons the flow implementation process automatically and is:
[0024] (1) Reasonably select the initial rainwater volume (generally expressed in mm) based on the analysis of the rainwater quality and rainfall in the area, and then combine the rainwater collection area in the actual project to determine the initial rainwater volume, that is, the initial rainwater abandonment flow , so as to determine the scale of the entire automatic flow discarding device.
[0025] (2) According to the analysis of local multi-year rainfall data, the interval time T between two rainfall events is selected 1 , to determine the total time T required by the jettison device to complete collection and discharge 2 ,T 2 should be equal to or slightly less than T 1 . Then, the emptying and restoration process of the abandonment device is designed to be carried out automatically, so as to achieve the purpose of automatically preparing the...
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The invention relates to a hydraulic self-control initial rain diversion method and device, which is mainly used in environment protection. Wherein, the initial rain enters into the timing water room and main water room synchronously; the timing water room utilizes the hydraulic theory to hydraulically time and utilizes the lifting and falling of two floats and the tension of different lines to release the preset delay automatic discharge to recover to the condition before raining; then enters into next cycle. The invention has simple structure and easy maintenance.
Description
technical field [0001] The utility model relates to a hydraulic automatic control initial rainwater abandonment device, which relates to an initial rainwater automatic abandonment device and belongs to the field of rainwater collection and utilization in municipal drainage or environmental protection. Background technique [0002] The collection and utilization of rainwater has been carried out for many years in foreign countries. Some cities with severe water shortages in my country have also carried out research work in this area, such as Beijing and Qingdao. Because the atmosphere contains a large amount of pollutants, and the ground, roads, and roofs that generate rainwater runoff also contain various pollutants, according to research at home and abroad, the runoff formed at the beginning of rainfall contains a large amount of pollutants, and its water quality is relatively poor. , often do not meet the requirements of rainwater collection and utilization; or make the f...
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IPC IPC(8): E03F1/00E03F5/00
Inventor 张海平朱宜平姜卫星赵建夫
Owner TONGJI UNIV