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Ring cooling machine air capacity control method and system based on sound source features

A technology of air volume control and ring cooling machine, which is applied in pump control, furnace control device, mechanical equipment, etc., can solve the problems of increasing the air volume of the ring cooling fan, waste of energy of the ring cooling fan, etc., and achieves the improvement of cooling effect and stable production. Effect

Active Publication Date: 2018-11-13
HUATIAN ENG & TECH CORP MCC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current solution is to increase the air volume of the ring cooling fan and use redundant air volume to overcome this problem, but this causes a waste of energy for the ring cooling fan

Method used

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  • Ring cooling machine air capacity control method and system based on sound source features
  • Ring cooling machine air capacity control method and system based on sound source features
  • Ring cooling machine air capacity control method and system based on sound source features

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] combine figure 1 and Image 6 In this embodiment, a method for controlling the air volume of an annular cooler based on the characteristics of the sound source is provided. Several first sound signal collectors are installed at the trolley of the annular cooler, and several second sound signal collectors are installed at the annular fan. An air volume detector is arranged at the outlet of the Taiwan ring air cooler, and the method includes the following steps:

[0045] Step 1: Collect the sound data of the ring cooling machine trolley and the sound data of the ring cooling fan under normal working conditions and fault conditions respectively; remove the influence of fan sound data from the sound data of the trolley according to the source reconstruction, and obtain the influence of eliminating interference After the normal working sound source sample set and the air leakage fault sound source sample set; use the normal working sound source sample set and the air leakag...

Embodiment 2

[0049] combine figure 2 , as a specific solution of embodiment 1, the method for obtaining the historical sample set after removing the influence of interference in the above step 1 includes:

[0050] Step 1.1: Collect the sound data of the ring cooler trolley and the sound data of the ring cooler fan under normal working conditions and fault conditions, and obtain the normal data set X normal and air leakage fault data set X fault , the trolley sound samples and fan sound samples in the data set appear in pairs, and correspond to each other according to the collection time;

[0051] Step 1.2: The normal data set X normal and air leakage fault data set X fault Mix to obtain a class-balanced historical sample set;

[0052] Step 1.3: In the category-balanced historical sample set, superimpose the sound samples of each slave trolley and the corresponding fan sound samples into a mixed sample to obtain a balanced mixed historical sample set;

[0053] Step 1.4: Perform indepe...

Embodiment 3

[0066] combine image 3, as the specific scheme of embodiment 1, the method for obtaining the air leakage rate index of the annular cooler based on the sound source characteristics in the above step 2 is:

[0067] Step 2.1: Sampling and denoising the collected sound data of the trolley in the workshop and the sound data of the fan to obtain a pair of online sound samples of the trolley and the online sound of the fan;

[0068] Step 2.2: Reconstruct the source of the online sound samples of the trolley and the online sound samples of the fan in real time, and obtain the sound intensity set of the trolley corresponding to the fault characteristic sound source as S1 j ={s1 j1 ,...,s1 jk}, the fan sound intensity set is S2 j ={s2 j1 ,...,s2 jk}, where j is the serial number of the current sample, i is the serial number of the characteristic sound source, s1 ji is the sound intensity of the trolley corresponding to the i-th feature of the current sample, s2 ji is the fan sou...

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Abstract

The invention discloses a ring cooling machine air capacity control method and system based on sound source features. A plurality of first sound signal collectors are mounted at trolleys. A pluralityof second sound signal collectors are mounted at fans. Air capacity detectors are arranged at outlets of ring cooling fans. The method comprises the steps of 1, collecting trolley sound data and fan data under various working conditions; refactoring the influence of rejecting the fan sound data from the trolley sound data according to information sources to obtain an interference-rejected sound source sample set; and establishing a ring cooling fan air leakage rate evaluation model through the sound source sample set; 2, collecting the trolley sound data and the fan sound data in real time andcalculating a ring cooling fan air leakage rate index on line according to the ring cooling fan air leakage rate evaluation model; and 3, collecting the air capacity of the outlets of the fans in real time and calculating the outlet error air capacity of the fans; calculating the total air leakage capacity of the ring cooling fans according to the ring cooling fan air leakage rate index, and regulating the motor frequencies of the ring cooling fans according to the total air leakage capacity and the outlet error air capacity.

Description

technical field [0001] The invention relates to a method and system for controlling the air volume of an annular cooler based on sound source characteristics. Background technique [0002] The annular cooler is a large-scale equipment used for material cooling. Its main working principle is to load high-temperature materials through the trolley and drive on the circular track. There is a bellows at the bottom of the trolley to blow air inside the trolley, and the high-temperature materials will be transported through the air. cool down. Around the outside of the ring of the ring cooler, several blowers will be set up according to the air volume demand to provide air source for the cooling process. [0003] The small granular materials to be cooled are evenly distributed in the form of thick material layers on the ring cooler. In order to ensure sufficient cooling of the materials, the ring cooler will install a bellows under the trolley and connect the blower, and the outsi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D15/02F27D19/00F04D27/00
CPCF04D27/00F27D15/02F27D19/00
Inventor 方田叶学农
Owner HUATIAN ENG & TECH CORP MCC
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