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NB/T 11126-2023Technical specification for application of active explosive isolation and suppression devices in coal mine (English PDF)

煤矿用主动式隔抑爆装置应用技术规范

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

February 6, 2023

Implementation date

August 6, 2023

Scope

NB/T 11126-2023 is the English-translated version of 煤矿用主动式隔抑爆装置应用技术规范.

NB/T 11126-2023 is the Chinese energy industry technical specification for applying active explosion suppression and active explosion isolation devices in coal mines.

Such devices rely on early detection of combustion or explosion signals by flame or shock wave detectors, after which a controller triggers the release of a suppressant to extinguish the flame or form a barrier that stops the explosion spreading.

The standard sets general requirements for their application, installation requirements for the devices, and rules for their maintenance and management. Terms are aligned with GB/T 15604-2008 and with AQ 1079-2009. Issued on 6 February 2023, it has applied since 6 August 2023.

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Document preview — NB/T 11126-2023

National Standard of the People's Republic of China

ICS
13.100
Classification
D 09

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

Contents

  • Preface
  • 1 Scope
  • 2 Normative references
  • 3 Terms and Definitions
  • 4 General requirements
  • 5 Installation requirements for active explosion-proof and suppression devices
  • 6 Maintenance and Management

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 general requirements for the application technology of active explosion suppression devices and active explosion isolation devices used in coal mines, device installation requirements, maintenance and management.

This document applies to the application of active explosion suppression devices and active explosion isolation devices for coal mines.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 15604-2008 Dust Explosion Protection Terminology

AQ1079-2009 General technical requirements for automatic powder spraying and explosion suppression devices for gas pipeline transportation

3 Terms and Definitions

The following terms and definitions defined in GB/T 15604-2008 and AQ1079-2009 apply to this document.

3.1 Explosion suppression

In the initial stage of the explosion, the technology of extinguishing the explosion flame through physical and chemical effects and inhibiting the development of the explosion. [Source: GB/T 15604-2008,5.2]

3.2 Explosion isolation

After the explosion occurs, the explosion flame is extinguished through physical and chemical effects to prevent the explosion from spreading. [Source: GB/T 15604-2008,5.5]

3.3 Active explosion isolation and suppression device

Active explosion suppression devices include active explosion suppression devices and active explosion suppression devices. Active explosion suppression device refers to the initial stage of explosion,

Relying on the advanced detection of combustion or explosion information, the flame suppressant is sprayed through the explosion suppressor to extinguish the explosion flame. Active flameproof devices are After the explosion occurs, relying on the advanced detection of explosion information, the flame suppressant is sprayed through the flameproof device to form a flameproof barrier to prevent the explosion from spreading. device.

3.4 Detector

A device that can receive combustion or explosion information and convert it into a usable signal.

NOTE: Includes flame detectors and shock wave detectors.

3.5 Controller

A device that processes combustion or explosion information and triggers an explosion suppressor or flameproof device.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

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