DLT 5203-2005 火力发电厂煤和制粉系统防爆设计技术规程 英文版
1 Scope
This standard specifies basic requirements of explosion prevention design for coal conveying, storage and pulverized coal preparation of coal-fired power plant, as well as such design for relevant flue, air duct and dust ignition.
This standard is applicable to coal and pulverized coal preparation system of coal-fired power plant, as well as explosion and ignition of pulverized coal cloud in enclosure (such as raw coal bunker, pulverized coal bin, coarse and fine pulverized coal separator as well as cylindrical silo etc.). For coal-fired power plant using multi-fuel ignition of coal and fuel oil or that of coal and fuel gas, it shall comply with this standard for contents related to coal.
This standard is not applicable to enclosure that produces extremely large internal pressure due to external flame or being exposed to other ignition source. If there are explosion prevention requirements of boiler furnace and boiler ignition system, it is not applicable to detonation and unconditional explosion and ignition.
2 Normative references
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrections), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the documents. For undated references, the latest edition of the normative document referred to applies.
ü GB/T 16426 Determination for Maximum Explosion Pressure and Maximum Rate of Pressure Rise of Dust Cloud
ü GB 50058 Electrical installations design code for explosive atmospheres and fire hazard
ü DL/T 435-2004 Code for the Prevention of Pulverized Coal Firing Furnace Explosions in Power Plant Boilers
ü DL/T 466-2004 Guide for Type Selection for Pulverizers and Pulverizing Systems of Power Station
ü DL 5000 Technical Code for Designing Fossil Fuel Power Plants
ü DL/T 5035-2004 Technical Code for Heating Ventilation and Air Conditioning Design of Fossil Fuel Power Plant
ü DL/T 5121-2000 Technical Code for Design of Thermal Power Plant Air & Flue Gas Ducts/ Raw Coal & Pulverized Coal Piping
ü DL/T 5145-2002 Technical Code for Design and Calculation of Pulverized Coal Preparation System of Fossil-fired Power Plant
