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NB/T 11632-2024Intelligent control system for coal mine auxiliary fan (English PDF)

煤矿用局部通风机智能控制系统

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

September 24, 2024

Implementation date

March 24, 2025

Scope

NB/T 11632-2024 is the English-translated version of 煤矿用局部通风机智能控制系统.

NB/T 11632-2024 is the Chinese energy industry standard for intelligent control systems of local ventilation fans in coal mines, built from a surface central station, substations, control and power boxes, sensors and actuators.

It sets models and requirements for environment, power supply, system design, basic functions, main technical indicators, information transmission, stability, interference immunity and online spark ignition.

Monitored quantities include fan air speed, pressure, vibration, motor current and voltage, and bearing and winding temperatures. Test methods and inspection rules follow, and normative annexes cover sensor installation and test instruments. Issued on 24 September 2024, it has applied since 24 March 2025.

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Document preview — NB/T 11632-2024

National Standard of the People's Republic of China

ICS: 73.100.99
Classification: D 98

Issued by: National Energy Administration of the People's Republic of China

7 Inspection Rules14
7.1 Inspection categories14
7.2 Factory Inspection14
7.3 Type test15
Appendix A (Normative) Sensor Installation Arrangement16
Appendix B (Normative) Characteristics of test instruments and equipment Reference20

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

1 Scope

This document specifies the models, requirements, test methods and inspection rules for intelligent control systems of local ventilation fans used in coal mines.

This document applies to the intelligent control system for local ventilation fans used in coal mines (hereinafter referred to as the "system").

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document. document.

GB/T 2887 General Specification for Computer Sites

GB/T 3836.1 Explosive atmospheres Part 1: General requirements for equipment

GB/T 3836.2 Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d"

GB/T 3836.4 Explosive atmospheres Part 4: Equipment protected by intrinsic safety type "i"

GB/T 3836.9 Explosive atmospheres Part 9: Equipment protected by seal type "m"

GB/T 3836.18 Explosive atmospheres Part 18: Intrinsically safe electrical systems

GB/T 4208 Enclosure protection degree (IP code)

GB/T 10111 Generation of random numbers and their application in product quality sampling inspection

GB/T 17626.2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test

GB/T 17626.3 Electromagnetic compatibility test and measurement technology Part 3: Radio frequency electromagnetic field radiation immunity test

GB/T 17626.4 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test

GB/T 17626.5 Electromagnetic compatibility test and measurement technology Surge (impact) immunity test

AQ 6201 General technical requirements for coal mine safety monitoring systems

MT/T 222 Technical requirements for local ventilation fans for coal mines

MT/T 286 Coal mine communication and automation product model compilation method and management method

MT/T 772-1998 Main performance test methods of coal mine monitoring system

MT/T 899 Information transmission device for coal mines

MT/T 1116 Technical requirements for networking of coal mine safety production monitoring systems

MT/T 1130 Mining Fieldbus

MT/T 1131 Mining Ethernet

3 Terms and definitions

The terms and definitions defined in AQ 6201, MT/T 222 and the following apply to this document.

3.1 Intelligent control system for local ventilation fan

It consists of a ground central station, lightning arrester, network switch, substation, programmable control box, power box, sensor, actuator and other necessary equipment.

It has local fan wind speed (air volume), pressure, vibration, motor three-phase current, voltage, bearing temperature, stator winding temperature and tunnel internal temperature.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.

Referenced standards

Normative references

AQ 6201 · MT/T 222 · MT/T 772-1998 · MT/T 899

Similar standards

NB/T 11634-2024|NB/T 11633-2024|GB/T 29723.1-2013|GB/T 18024.7-2010|NB/T 11325-2023|GB/T 47461-2026

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