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Air volume control method of ring cooler based on frequency characteristic

A technology of frequency characteristics and ring coolers, applied in pump control, furnace control devices, mechanical equipment, etc., can solve the problems of increasing the air volume of ring cooling fans and energy waste of ring cooling fans, so as to save power consumption and reduce production capacity Consumption, reduce the effect of redundant air volume

Active Publication Date: 2019-12-27
HUATIAN NANJING ENG & TECH CORP MCC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 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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  • Air volume control method of ring cooler based on frequency characteristic
  • Air volume control method of ring cooler based on frequency characteristic
  • Air volume control method of ring cooler based on frequency characteristic

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Embodiment Construction

[0050] The present invention aims to provide an air volume control system and a control method of an annular cooler. The control system forms a direct closed-loop control of the air volume of the fan through the detection of the air volume at the outlet of the ring cooler, and then calculates the air leakage rate index of the ring cooler through the sound detection of the ring cooler trolley, so as to perform online compensation for the air volume, thereby Realize the closed-loop control of the air volume of the ring cooler. The control system adjusts the frequency converter of the fan through the controller, so as to change the motor speed and achieve the effect of air volume adjustment.

[0051] The present invention collects and analyzes the sound signals of the ring cooler workshop, arranges the collected sound data into a sound history sample library of the ring cooler workshop, analyzes and extracts the features of the sample data set, and establishes a calculation model...

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Abstract

The invention discloses an air volume control method of a ring cold machine based on frequency characteristics. The method includes that an evaluation model of the air leakage rate of the ring cold machine based on the frequency characteristics is established, the air leakage rate of the ring cold machine is calculated on line based on the evaluation model of the air leakage rate of the ring coldmachine, and the closed-loop control is conducted on the air volume of the ring cold machine based on the air leakage rate. According to the air volume control method, the outlet air volume of the ring cold machine is detected to form the direct closed-loop control of the air volume of the fan, then the sound of a trolley of the ring cold machine is detected, the air leakage rate index of the ringcold machine is calculated, in this way, on-line compensation is conducted on the air volume, and the closed-loop control of the air volume of the ring cold machine is achieved; and according to a control system, a fan inverter is adjusted through a controller, the rotating speed of a motor is changed, and the effect of air volume adjusting is achieved.

Description

Technical field: [0001] Air volume control method of circular cooler based on frequency 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 outside air will be brought into the high temperature throu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H17/00G01M3/24F27D15/02
CPCF04D27/00F27D15/02F27D19/00F27D2019/0056
Inventor 方田叶学农
Owner HUATIAN NANJING ENG & TECH CORP MCC
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