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Mining explosion-proof frequency converter with emergency power supply and control method

An explosion-proof inverter, mine explosion-proof technology, applied in emergency power supply arrangements, collectors, electric vehicles and other directions, can solve the problems of roadway gas concentration exceeding the limit, unable to operate, gas explosion, etc., to improve safety and reliability, The effect of avoiding the roadway gas exceeding the limit, ensuring the evacuation time and the emergency repair time

Pending Publication Date: 2022-07-26
CITIC HIC KAICHENG INTELLIGENT EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insufficiency of the existing explosion-proof frequency converter: When the existing explosion-proof frequency converter and its driven equipment such as local fans encounter a power outage on site, they will stop immediately and cannot operate
For coal mines, it is very dangerous to stop the operation of the local fan, because it will cause the gas concentration in the roadway to exceed the limit, and even cause a major accident of gas explosion

Method used

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  • Mining explosion-proof frequency converter with emergency power supply and control method
  • Mining explosion-proof frequency converter with emergency power supply and control method
  • Mining explosion-proof frequency converter with emergency power supply and control method

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0024] like figure 1 As shown, an explosion-proof frequency converter for mining with emergency power supply is composed of an explosion-proof frequency converter box and at least one explosion-proof battery box.

[0025] The explosion-proof frequency converter box includes: explosion-proof casing 1, frequency converter 2, DC / DC converter 3 and EMS controller 4, and the frequency converter 2, DC / DC converter 3 and EMS controller 4 are all Installed inside the explosion-proof housing 1.

[0026] The explosion-proof battery box includes: an explosion-proof casing 2 5 , a battery unit 7 and a high-voltage power distribution box 6 , and the battery unit 7 and the high-voltage power distribution box 6 are installed inside the explosion-proof casing 2 5 .

[0027] In the explosion-proof frequency converter box, the input end in of the frequency converter 2 ...

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Abstract

The invention discloses a mining explosion-proof frequency converter with an emergency power supply and a control method. The explosion-proof frequency converter is composed of an explosion-proof frequency converter box and an explosion-proof battery box. The explosion-proof frequency converter box comprises an explosion-proof shell I, a frequency converter, a DC / DC converter and an EMS controller, and the frequency converter, the DC / DC converter and the EMS controller are mounted in the explosion-proof shell I; the explosion-proof battery box comprises an explosion-proof shell II, a battery unit and a high-voltage distribution box; and the battery unit and the high-voltage distribution box are arranged in the explosion-proof shell II. When the mining explosion-proof frequency converter is powered off, the EMS controller sends a control instruction to the DC / DC converter, the DC / DC converter firstly converts the electric energy stored in the explosion-proof battery box and then supplies power to the direct current bus of the frequency converter, normal operation of the frequency converter is maintained, and the purpose that the frequency converter is not shut down in the power failure is achieved.

Description

technical field [0001] The invention belongs to the field of mining explosion-proof frequency converters, in particular to a mine-use explosion-proof frequency converter with an emergency power supply and a control method. Background technique [0002] Mine explosion-proof inverter is an important equipment in coal mines, which is used to drive important equipment such as local fans, belts, winches and so on. In the known technology, the existing explosion-proof frequency converter is composed of an explosion-proof casing and a frequency converter inside the casing. Disadvantages of the existing explosion-proof inverter: when the existing explosion-proof inverter and its driven equipment, such as the local fan, encounter a power failure on site, it will stop immediately and cannot run. For coal mines, it is very dangerous for the local fan to stop running, because it will cause the gas concentration in the roadway to exceed the limit, and even cause a major accident of gas ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02J7/00H02M1/00
CPCH02J9/061H02J7/0068H02M1/00H02J2207/20
Inventor 陆文涛丁彬朱海军马永宁
Owner CITIC HIC KAICHENG INTELLIGENT EQUIP CO LTD
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