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JB/T 12539-2015Operating requirements for selective non-catalytic reduction flue gas denitrification systems (English PDF)

选择性非催化还原法烟气脱硝系统运行技术条件

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

October 10, 2015

Implementation date

March 1, 2016

Scope

JB/T 12539-2015 is the English-translated version of 选择性非催化还原法烟气脱硝系统运行技术条件.

JB/T 12539-2015 is a recommended Chinese machinery industry standard that lays down the operating requirements for selective non-catalytic reduction flue gas denitrification systems.

After terms, definitions and general rules it describes the make-up of the system and its process flow, then start-up, adjustment during running and shutdown, the handling of the main system faults, the safety procedures and the operating and management arrangements to be kept in place.

Its provisions address the operation, the maintenance and the safety management of such denitrification systems. Chinese classification J88 is given for it, with 13.020.40 internationally.

Among the standards it quotes are GB 18218, GB/T 21509, GB 26164.1, GB 50058, DL/T 335-2010 and HJ 563.

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Document preview — JB/T 12539-2015

National Standard of the People's Republic of China

ICS: 13.020.40

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Scope
2 Normative references
3 Terms and definitions
4 General principles
5 Composition of the system and process flow
5.1 Composition of the system
5.2 Process flow
6 Start-up of the denitrification system
6.1 Basic requirements before the start-up
6.2 Start-up
7 Operating adjustment
7.1 Main principles of the operating adjustment
7.2 Main contents of the operating adjustment
7.3 Check and maintenance during the operation of the denitrification system
8 Shutdown of the denitrification system
8.1 Modes of shutdown
8.2 Long shutdown
8.3 Temporary and short shutdown
8.4 Check, maintenance and precautions after the shutdown
9 Handling of the main faults of the denitrification system
9.1 General principles of the fault handling
9.2 Shutdown of the denitrification system due to a fault
9.3 Handling of the insufficient level of reducing agent in the storage tank
9.4 Handling of the fault of the reducing agent delivery pump
9.5 Handling of the fault of insufficient compressed air pressure
9.6 Handling of the fault of the injection lance
9.7 Handling of the fault of the liquid ammonia evaporator
9.8 Handling of the fault of the dilution fan
10 Safety rules
11 Main operation management system
Annex A (informative) Typical process flows of the denitrification system
A.1 Typical process flow of the denitrification system when urea is used as the reducing agent
A.2 Typical process flow of the denitrification system when ammonia water prepared from liquid ammonia is used as the reducing agent
A.3 Typical process flow of the denitrification system when ammonia water is used as the reducing agent
A.4 Typical process flow of the denitrification system when ammonia gas is used as the reducing agent
Annex B (informative) Periodic equipment switching table and central control denitrification operation record form
B.1 Periodic equipment switching table

What this standard covers

This standard specifies the terms and definitions, general rules, system composition and process flow, system start-up, operation adjustment, system outage, main system fault handling, safety of the selective non-catalytic reduction flue gas denitration system (hereinafter referred to as denitration system) Procedures, the main operation and management system. This standard is applicable to the operation, maintenance and safety management of selective non-catalytic reduction flue gas denitrification system.

Document data

International classification (ICS): 13.020.040.

Chinese classification (CCS): J88.

Estimated length of the Chinese original: 22,279 words.

Standards quoted by this document

GB 18218; GB/T 21509; GB 26164.1; GB 50058; DL/T 335-2010; HJ 563

3 Terms and definitions

4 General principles

5 Composition of the system and process flow

6 Start-up of the denitrification system

7 Operating adjustment

8 Shutdown of the denitrification system

9 Handling of the main faults of the denitrification system

10 Safety rules

11 Main operation management system

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

JB/T 14100-2020|JB/T 12534-2015|JB/T 12911-2016|JB/T 13561-2018|JB/T 11888-2014|GB/T 37352-2019

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