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Dry quenching circulating fan system and high-voltage frequency converter switching control method and device thereof

A technology of high-voltage frequency converter and circulating fan, applied in pump device, pump control, circuit device, etc., can solve the problem that the temperature of CDQ cannot be effectively controlled, so as to improve work reliability, ensure periodic maintenance, and ensure The effect of stable operation of production

Pending Publication Date: 2021-10-01
武汉钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing CDQ circulating fan adopts a drive configuration of one motor and one set of frequency converter. If the high-voltage frequency converter of the circulating fan fails during the production process and the fan stops, the temperature in the CDQ furnace will not be effectively controlled and will be forced to discontinued

Method used

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  • Dry quenching circulating fan system and high-voltage frequency converter switching control method and device thereof
  • Dry quenching circulating fan system and high-voltage frequency converter switching control method and device thereof
  • Dry quenching circulating fan system and high-voltage frequency converter switching control method and device thereof

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Embodiment Construction

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art belong to the protection scope of the embodiments of the present invention.

[0047] see figure 1 , figure 1 A schematic structural diagram of a coke CDQ circulating fan system provided by an embodiment of the present invention, specifically, the system includes: a backup power supply branch and at least two fan power supply branches; wherein, each fan power supply branch is correspondingly set There is a circulating fan.

[0048] The fan power supply branch includes a working power supply terminal 201, a working frequency converter...

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Abstract

The invention relates to the technical field of dry quenching fan control, in particular to a dry quenching circulating fan system and a high-voltage frequency converter switching control method and device thereof. In the system, a fan power supply branch comprises a working power supply end, a working frequency converter and a motor switching cabinet; a standby power supply branch comprises a standby power supply end and a standby frequency converter; and the motor switching cabinet is used for switching power supply branches of motors of corresponding circulating fans. The standby power supply branch and the fan power supply branch are connected with the motor of the circulating fan corresponding to the fan power supply branch through the motor switching cabinet in the fan power supply branch, so that each circulating fan can correspond to two power supply branches, common redundancy of the power supply circuit of the circulating fan and the high-voltage frequency converter is realized, after the frequency converter of the dry quenching circulating fan breaks down, the standby frequency converter can be put into operation rapidly, stable operation of production is ensured, and the working reliability of the dry quenching circulating fan is improved.

Description

technical field [0001] The invention relates to the technical field of CDQ fan control technology, in particular to a CDQ circulating fan system and a high-voltage frequency converter switching control method and device thereof. Background technique [0002] CDQ circulation fan is the key equipment in CDQ production, and the speed of the fan is adjusted by the high-voltage frequency converter of the circulation fan. The existing CDQ circulating fan adopts a drive configuration of one motor and one set of frequency converter. If the high-voltage frequency converter of the circulating fan fails during the production process and the fan stops, the temperature in the CDQ furnace will not be effectively controlled and will be forced to discontinued. [0003] Therefore, how to improve the working reliability of the coke CDQ circulating fan is a technical problem that needs to be solved urgently at present. Contents of the invention [0004] The object of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D27/00H02J9/06
CPCF04D25/08F04D27/001F04D27/004F04D27/008H02J9/062Y04S20/20Y02B70/30
Inventor 刘欣向勇何源杨光
Owner 武汉钢铁有限公司
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