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Intelligent monitoring and control method for coagulation process based on multisource information fusion technology

A multi-source information fusion and intelligent monitoring technology, which is applied in separation methods, chemical instruments and methods, flocculation/sedimentation water/sewage treatment, etc., can solve problems that cannot fully reflect raw water

Inactive Publication Date: 2007-03-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the defect that a single sensor can only provide partial information of the coagulation process and cannot fully reflect the changes in raw water and coagulation reaction process. Due to the variety of information collected and strong anti-interference ability, it is not easy to collect wrong information resulting in wrong dosage of coagulant

Method used

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  • Intelligent monitoring and control method for coagulation process based on multisource information fusion technology

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specific Embodiment approach 1

[0005] Embodiment 1: This embodiment is composed of the following steps: 1. Utilize the turbidity sensor 1, the pH sensor 2, the conductivity sensor 3, the temperature sensor 4 and the flow sensor 5 arranged in the raw water to obtain the corresponding water quality parameters respectively. Signals I1, I2, I3, I4 and I5; step 2, input the corresponding signals I1, I2, I3, I4 and I5 representing water quality parameters into the space-time fusion system 6 using the fuzzy neural network algorithm, and the output value α is input to the comparator The positive input terminal of 10 is used as the setting value of the single-factor coagulation intelligent control system; 3. The corresponding calculation is performed in the controller 7 of the single-factor coagulation intelligent control system, and the dosage of the coagulant is output to the mixer. The coagulant dosing pump 9, and the single-factor detector 8 set in the coagulation reaction tank feeds back the detected feedback va...

specific Embodiment approach 2

[0006] Embodiment 2: The present embodiment will be described in detail below with reference to FIG. 2 . The difference between this embodiment and the first embodiment is that the processing steps of the data in the second step in the first embodiment in the spatiotemporal fusion system 6 using the fuzzy neural network algorithm are composed of the following steps: 201. Separate the input signal I1 , I2, I3, I4 and I5 perform data-level fusion, that is, obtain the detection value of each sensor and obtain the rate of change of the detection value of each sensor, and analyze whether the continuous output data of each sensor has abnormal changes to determine whether the data is Reliable, so as to determine whether the instrument has problems such as failure, noise interference, signal loss, etc.; 202. Perform feature-level fusion on the data that has undergone data-level fusion. The fuzzy neural network with a 5-layer network structure converts the information of different meas...

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Abstract

The present invention discloses the real-time optimized control method of intelligent monitoring and coagulating agent throwing in water treatment. The intelligent monitoring and controlling method of coagulation process based on multisource information fusion technology consists of the following steps: obtaining water quality parameter signals I1-I5 with turbidity sensor, pH sensor, conductivity sensor, temperature sensor and flow rate sensor; inputting I1-I5 to time-space fusion system in fuzzy nerve network algorithm and outputting the result to comparator; calculating in the controller of single factor intelligent coagulation controlling system, feeding the coagulating agent throwing amount to the throwing pump, and feeding the current coagulation reaction degree value with the single factor detecting instrument to the comparator; and monitoring intelligently the water quality parameters and variations for comprehensive high quality control of the coagulation process.

Description

Technical field: [0001] The invention relates to a method for intelligently monitoring the coagulation and dosing process in the process of water treatment, drug dosing and coagulation, and realizing real-time optimal control of coagulant dosing. Background technique: [0002] The coagulation and dosing process of water treatment is a key link that affects the water quality of the treatment, and has always been the focus of water treatment research. With the development of computer technology and the improvement of the automation degree of water plant operation, the automatic control of coagulation and dosing has been realized to a certain extent. However, due to the complex physical and chemical reaction mechanism of the water treatment process, the time-varying water quality parameters and the time-lag of the reaction, and many factors affecting the dosage of coagulant, it is still very important to determine and control the dosage of coagulant. difficulty. The current a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52B01D21/01
Inventor 白桦马军
Owner HARBIN INST OF TECH
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