Intelligent aeration system with dissolved oxygen meter

An aeration system and dissolved oxygen technology, applied in water aeration, aerobic process treatment, chemical instruments and methods, etc., can solve problems such as failure to work normally, automatic control system paralysis, and large fluctuations in dissolved oxygen control values.

Inactive Publication Date: 2014-03-19
中山欧麦克仪器设备有限公司
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Problems solved by technology

However, in actual operation, due to the long-time control lag of this method, the overall control accuracy is low, and the dissolved oxygen control value fl

Method used

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  • Intelligent aeration system with dissolved oxygen meter

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Embodiment Construction

[0015] Please refer to figure 1 As shown, it shows the workflow of a preferred embodiment of the present invention, a kind of intelligent aeration system with dissolved oxygen measuring instrument, including dissolved oxygen measuring instrument, aeration disc, PLC controller, frequency converter, aeration Pool and blower, the detection probe and aeration plate of the dissolved oxygen measuring instrument are arranged in the aeration tank, the dissolved oxygen measuring instrument is connected with the input end of the PLC controller, and the output end of the PLC controller is connected with the input end of the frequency converter connection, the output end of the frequency converter is connected to the input end of the blower through a cable, and the output end of the blower is connected to the air inlet of the aeration pan. A data processing module for dissolved oxygen, the frequency converter is provided with a blower adjustment module for controlling the air blowing volu...

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Abstract

The invention discloses an intelligent aeration system with a dissolved oxygen meter. The intelligent aeration system comprises the dissolved oxygen meter, an aeration disc, a PLC (programmable logic controller), a frequency converter, an aeration tank and a blower. Intelligent control of dissolved oxygen in the aeration tank is achieved by putting a detection probe of the dissolved oxygen meter in the aeration tank, sending parameter signals of the dissolved oxygen in the aeration tank into the dissolved oxygen meter, transmitting data to a data processing module of the PLC by the dissolved oxygen meter to calculate the biological oxygen demand and dissolved oxygen of the aeration tank, sending an instruction to a blower regulating module in the frequency converter after comparing the calculation results with the programs preset in the PLC, regulating the blast volume of the blower to control appropriate biological oxygen demand in the aeration tank and simultaneously sending an instruction to an air flow distribution module in the frequency converter to regulate an electric flow regulating valve of an aeration pipeline in the blower.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an intelligent aeration system with a dissolved oxygen measuring instrument. Background technique [0002] At present, various sewage treatment plants in China generally adopt the aeration tank process to increase the dissolved oxygen in the sewage dissolved oxygen treatment section. At present, manual control of the aeration system and fixed value adjustment methods are commonly used. Most sewage treatment plants in China still use manual control of the aeration system. The manual control of the aeration system is for the operator to adjust the air volume of the blower every day or for a longer period of time according to experience and laboratory test data to make the aeration tank operate normally. Methods. Although this method can also make the aeration tank operate normally, and the effluent reaches the standard. However, this method cannot adapt to changes in the...

Claims

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Application Information

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IPC IPC(8): C02F3/02C02F7/00
CPCY02W10/10
Inventor 石冰鑫李景云
Owner 中山欧麦克仪器设备有限公司
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