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Subway tunnel fan control system

A control system and tunnel technology, applied in mine/tunnel ventilation, pump control, mechanical equipment, etc., can solve the problems of the subway tunnel fan not running normally, unable to start the subway tunnel fan in time, etc., to achieve the effect of improving reliability

Active Publication Date: 2011-11-23
浙江万可电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The control system has local and remote control modes. When the control system fails for some reason, the fan control device cannot start the subway tunnel fan in time to run smoothly, especially in the case of emergency smoke exhaust in fire conditions, the subway tunnel fan The failure of the control system will cause a serious accident in which the fan in the subway tunnel cannot operate normally

Method used

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] As shown in the figure, the subway tunnel fan control system of the present invention includes a main circuit, a PLC control circuit and a forced start control circuit. The main circuit includes a three-phase power live wire L1, L2, L3, a three-phase circuit breaker QF, and a frequency converter BP , contactors KM1, KM2, KM4, motor...

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Abstract

The invention discloses a subway tunnel fan control system, which comprises a main circuit, a programmable logic controller (PLC) control circuit and a forced start control circuit. When a PLC control system fails, a fan can be forcibly started to run through the forced start control circuit; when the subway tunnel fan runs in a fire condition mode, the system can effectively shield the fault to ensure safe, reliable and normal operation of the fan; and the fan provides necessary fresh air for passengers and fire fighters by air supply or smoke exhaust, and a certain face velocity is formed, so that the passengers and the workers are guided to evacuate safely, harmful smoke is removed, and the fire-fighting function of exhausting the smoke by supplying fresh air is realized.

Description

technical field [0001] The invention relates to a subway tunnel fan control system, in particular to a tunnel fan control system with a forced start function. Background technique [0002] With the vigorous development of domestic metropolitan rail transit in recent years, the application of subway tunnel fans has become more and more extensive, and the control system of subway tunnel fans has also been continuously improved and updated. Various subway tunnel fan control devices are widely used in the control of fans superior. There are frequency converters to start fans, soft starters to start fans, star-delta or self-coupling step-down fans in the early days, and control devices to directly start fans. Among these fan control devices, the device that uses the frequency converter to start and run the fan control device has the advantages of stability, energy saving, high efficiency and easy maintenance. When the subway tunnel fan is used in the fire mode, after the fan is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
CPCE21F1/003F04D19/005F04D27/004F04D27/008Y02B30/70
Inventor 王鑫荣邵建强王德秋
Owner 浙江万可电气设备有限公司
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