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Intelligent sewage treatment aeration device

A sewage treatment and aeration equipment technology, applied in water aeration, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve problems such as influent water quality and water volume fluctuations, and achieve good energy saving effects and predictable Failure, high degree of automation effect

Pending Publication Date: 2019-08-30
中国科学院电工研究所无锡分所
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  • Abstract
  • Description
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Problems solved by technology

At present, the influent water quality and water volume of sewage treatment plants fluctuate in different time periods, which brings great challenges to the precise control of sewage treatment

Method used

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  • Intelligent sewage treatment aeration device

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0017] Such as figure 1 As shown, an intelligent sewage treatment aeration equipment includes a frequency conversion speed regulation circuit 1, a motor 2, a centrifugal fan 3, a gas delivery pipeline 4, an aeration device 5, a speed detection circuit 6, and a temperature, wind pressure and flow detection circuit 7 , BOD detection circuit 8 and DO detection circuit 9.

[0018] The frequency conversion speed regulation circuit 1 is used to rectify the three-phase AC mains into DC, and then invert it into AC with higher frequency. The motor 2 drives the centrifugal fan 3 to run, and the ambient air is turned into compressed gas with high pressure, which is sent to the aeration device 5 of the aerobic tank through the gas delivery pipeline 4 . The rotational speed detection circuit 6 is used to detect the rotational speed of the motor in real time, co...

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Abstract

The invention discloses an intelligent sewage treatment aeration device. The device is characterized in that a frequency conversion speed regulation circuit is used for adjusting the power supply frequency of a motor to realize the adjustment of the operating rotation speed of the motor; a rotation speed detection circuit is used for detecting the output rotation speed of the motor; a temperature,wind pressure and flow detection circuit is respectively used for realizing the temperature, wind pressure and flow detection of the output gas of a centrifugal fan; an aeration device is installed at the bottom of an aerobic tank for realizing the aeration function of the aerobic tank and improving the oxygen content in the water of the aerobic tank; a BOD detection circuit is used for detectingthe biological oxygen demand of the aerobic tank; a DO detection circuit is used for detecting the oxygen content in the water of the water outlet of the aerobic tank. According to the intelligent sewage treatment aeration device disclosed by the invention, in combination with a sewage treatment process, the working frequency of the motor is controlled according to the DO value of the water outlet of the aerobic tank; in combination with feedback data such as BOD value, air outlet temperature, wind pressure and flow, the working state of a system is judged; the device has the advantages of energy saving, high efficiency, stability and the like.

Description

technical field [0001] The invention relates to the field of energy-saving control devices for sewage treatment, in particular to intelligent aeration equipment for sewage treatment, in particular to intelligent aeration system equipment for sewage treatment plants. Background technique [0002] With the development of society, more and more domestic sewage and industrial sewage are produced. In order to prevent the sewage from being directly discharged and causing further environmental pollution, more and more sewage treatment plants have been built. With the improvement of the country's sewage discharge standards, many sewage treatment plants built in the early stage are difficult to meet the requirements of the new discharge standards due to their low level of automation and backward management. [0003] During the sewage treatment process, the aerobic tank needs continuous aeration to maintain the activity of bacteria in the aerobic tank. Usually, the value of DO in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F7/00H02P27/06
CPCC02F7/00H02P27/06Y02W10/10
Inventor 陈培鲁通杨炜杨建勋陈月陵
Owner 中国科学院电工研究所无锡分所
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