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Air shaft main fan power locking device

A locking device and main fan technology, applied in circuit devices, emergency protection circuit devices, emergency protection devices with automatic disconnection, etc., can solve problems such as potential safety hazards, achieve good electromagnetic compatibility, prevent gas explosion accidents, and network Simple and easy to operate effect

Inactive Publication Date: 2007-01-31
浙江佳洲电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a power supply locking device for the main fan of the air shaft, so as to solve the problem of serious safety hazards in the prior art by manual operation

Method used

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  • Air shaft main fan power locking device
  • Air shaft main fan power locking device
  • Air shaft main fan power locking device

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Embodiment Construction

[0030] see figure 1 and figure 2 , the present invention mainly is made up of main frame A and slave machine B, and main frame A and slave machine B are respectively arranged in Fengjing substation and central substation, and between the two through existing communication system P (comprising P1 and P2) Connection, that is, the host computer A and the slave computer B pass through a small automatic telephone exchange P1 and P2 respectively, and one or two (one of which is a standby) communication line (system) C between P1 and P2.

[0031] Described host computer A comprises: command input keyboard circuit 11, host computer cut-off control circuit 12, host computer data processing unit 13, host computer communication data sending and receiving circuit 14, display drive circuit 15, digital display 16, host computer communication signal monitor ( Double-trace oscilloscope) 17, wind pressure sampling circuit 19, blower fan start-stop detection circuit 20 and main engine working...

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PUM

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Abstract

The invention is an air shaft fan power supply latching device, comprising host computer and slave computer interconnected through communication system, where the host computer comprises: host computer data processing unit, instruction input keyboard, host computer data transmitting and receiving circuit, digital display unit, display drive circuit, host computer power-off control circuit, air pressure sampling circuit, fan ON / OFF detection circuit and host computer working state indicating circuit; and the slave computer comprises: slave computer data processing unit, slave computer transmitting and receiving circuit, slave computer power-off control circuit and slave computer working state indicating circuit. And the invention adopts remote monitoring technique and can automatically detect working state of the main fan. And it can radically put an end to gas explosion accident caused by ventilating failure.

Description

technical field [0001] The invention relates to a locking device for a main fan power supply of an air shaft, which is mainly used for automatic switching and alarming of the main fan power supply of a coal mine air shaft. Background technique [0002] Working underground in coal mines, miners' life safety and equipment safety are the most important. Once the ventilation conditions in coal mines are abnormal, the concentration of gas and other mixed gases will rise rapidly. At this time, it is necessary to completely cut off the power supply underground. [0003] At present, the wind shaft power supply of various coal mines in my country is composed of the wind shaft substation and the central substation. Most of the wind shaft power supply is set separately by the wind shaft substation and the central substation. The distance varies, the farthest is 5-6 kilometers, and the nearest is only a dozen meters. In order to ensure the safety of parallel production, it is objectivel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H5/00H02J13/00
CPCY04S20/242Y02B70/3266
Inventor 余晓锋
Owner 浙江佳洲电器有限公司
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