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1 Scope
This standard specifies technical requirements for arrangement, specification and material, supporting rib, explosion precautions, design of supporter and hanger for air & flue gas ducts/raw coal & pulverized coal piping of fossil fuel power plant boilers, as well as selection for chimney exit velocity, etc.
This standard is applicable to air & flue gas ducts/raw coal & pulverized coal piping design for steel structure of coal burning boiler with capacity is 65-2000t/h grade. It only proposes relevant technological design requirements for air flue gas ducts of nonmetallic structure.
Design for air flue gas ducts of fuel oil and natural gas burning boilers, and air & flue gas ducts/raw coal & pulverized coal piping of coal burning boiler with capacity is less than 65t/h and is larger than 2000t/h grade may comply with this standard.
Engineering concerning foreign affairs must consider condition and using standard of supplier and purchaser's country, it may use this standard by reference.
2 Normative references
The following normative documents contain provision which, through reference in this text, constitute provisions of this national standard. At time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. |
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