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Method for determining distance between ascension pipes of sewage deep-sea discharge diffuser

A diffuser and spacing technology, applied in the direction of sewage discharge, waterway system, water supply device, etc., to achieve the effect of avoiding project waste

Inactive Publication Date: 2014-11-05
TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] However, the riser spacing calculated by the formula is only a minimum value, and the selection of the actual, economical and environmentally friendly diffuser spacing has always been a bottleneck problem that needs to be solved urgently

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  • Method for determining distance between ascension pipes of sewage deep-sea discharge diffuser

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Embodiment Construction

[0023] A method for determining the distance between risers of a sewage deep-sea discharge diffuser according to the present invention will be described in conjunction with the accompanying drawings.

[0024] The design concept of the present invention is based on the method of comprehensively adopting the calculation of the space between the rising pipes of the diffuser and the simulation analysis of the physical model test of the diffuser sewage sea area to accurately determine the space between the rising pipes of the diffuser. The specific method steps are as follows: figure 1 , the riser structure of the diffuser is as follows figure 2 .

[0025] The method is a method for determining the distance between risers of a sewage deep-sea discharge diffuser, and the steps of the method include:

[0026] (1) Estimation of diffuser riser spacing and preliminary plan determination of diffuser riser spacing

[0027] According to Brooks, Wiullam and Agg Wakeford's diffuser riser ...

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Abstract

The invention discloses a method for determining a distance between ascension pipes of a sewage deep-sea discharge diffuser. The method comprises the following steps of: estimating the distance of the ascension pipes of the diffuser and determining a primary scheme of the distance between the ascension pipes of the diffuser; establishing a diffuser drainage sea area physic test model and carrying out calibration analysis on the model; testing the physic model of the distance scheme of the ascension pipes of the diffuser; and analyzing the data of the physic model test of the diffuser and determining the distance between the ascension pipes. By comprehensively adopting formula calculation and the physic model test, the method for determining the distance between ascension pipes of the sewage deep-sea discharge diffuser determines the length of the distance between the ascension pipes of the diffuser exactly, solves the current situation that the traditional distance of the diffuser is difficult to determine precisely only by the virtue of the formula calculation efficiently, guarantees dilution and diffusion effects of the pollutants discharged by the diffuser in the sea area, enables the dilution degree of the scope having 100 m distance to the outlet of the diffuser to be 100 times to the maximum, avoids project waste caused by overlong distance of the diffuser, provides technical support for the determination of the length of the diffuser and the design of the economic and environment-friendly type diffuser, and lays the foundation for the sewage deep-sea discharge project.

Description

technical field [0001] The invention relates to a method for determining the spacing of ascending pipes of a deep-sea sewage discharge diffuser, in particular to a design method for a multi-rising pipe and multiple nozzle structure of a sewage deep-sea discharge diffuser. Background technique [0002] Deep sea discharge of sewage is the most environmentally friendly and economical method of sewage treatment near ports, and it has been widely adopted by coastal cities. The optimal design of the diffuser structure is one of the key technologies in the construction scheme of the sewage discharge project. The structural scheme mainly includes the length and pipe diameter of the diffuser, the distance between the number of rising pipes and the pipe diameter, the horizontal azimuth angle of the spout, the jet angle and pipe diameter and other factors. The diffuser structure scheme directly affects the effect of sewage dilution and diffusion and project investment. To study the ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F1/00
Inventor 彭士涛王心海白景峰于航赵宏鑫陈瑶泓伶
Owner TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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