This code is applicable to the pressure vessel and main steam and water pipe in steam boiler and thermodynamic system of fuel electric plant which is used for thermal power generation with rated steam pressure equal to or greater than 3.8MPa. The power generation boiler with rated steam pressure less than 3.8 MPa may be carried out as reference.
Supervision scope of this code:
a) Pressure parts, parts and connecting pieces of the boiler body;
b) Pipes within boiler scope;
c) Safety protection device and meter of boiler;
d) Boiler room;
e) Bearing structure of boiler;
f) Pressure vessel in thermodynamic system: high, low pressure heater, oxygen extractor and all kinds of flash vessel etc.;
g) Main steam line, main feed pipe, high and low temperature reheat steam pipe.
Foreword I
1 Scope
2 Normative References
3 General Provisions
4 Supervision Management
5 Boiler Structure
6 Design and Manufacture of Pressure Vessel and Pipe
7 Metal Material
8 Welding of Pressure Parts
9 Safety Protection Device and Meter
10 Chemical Supervision of Boiler
11 Boiler Room
12 Installation and Debugging
13 Operation Management, Repair and Remold
14 Inspection
This code is applicable to the pressure vessel and main steam and water pipe in steam boiler and thermodynamic system of fuel electric plant which is used for thermal power generation with rated steam pressure equal to or greater than 3.8MPa. The power generation boiler with rated steam pressure less than 3.8 MPa may be carried out as reference.
Supervision scope of this code:
a) Pressure parts, parts and connecting pieces of the boiler body;
b) Pipes within boiler scope;
c) Safety protection device and meter of boiler;
d) Boiler room;
e) Bearing structure of boiler;
f) Pressure vessel in thermodynamic system: high, low pressure heater, oxygen extractor and all kinds of flash vessel etc.;
g) Main steam line, main feed pipe, high and low temperature reheat steam pipe.
Contents of DL 612-1996
Foreword I
1 Scope
2 Normative References
3 General Provisions
4 Supervision Management
5 Boiler Structure
6 Design and Manufacture of Pressure Vessel and Pipe
7 Metal Material
8 Welding of Pressure Parts
9 Safety Protection Device and Meter
10 Chemical Supervision of Boiler
11 Boiler Room
12 Installation and Debugging
13 Operation Management, Repair and Remold
14 Inspection
