1. General Provisions
1.0.1 The purpose of this specification is to direct the design of the water/steam pipeline of fossil fuel power plant to ensure a secure, full-load, and economical operation.
1.0.2 This specification is suitable for the steam/water piping design in the fossil fuel power plant with the unit main steam parameter as 27MPa, 550℃ (high temperature and reheated steam can be as high as 565℃) or below.
The steam/water piping design within the generating units and the furnace shall not only comply with this specification, but also needs to be determined after being negotiated with the manufacturer.
The heating network pipe and the pipe for transferring oil and air inside the power plant can refer to this specification.
This specification is not suitable for the designs of fuel pipeline, fuel gas pipeline, hydrogen gas pipeline and underground straight buried pipe.
1.0.3 Related standards quoted by this specification:
Nominal diameter of the pipeline parts (3131047)
Nominal pressure of the pipeline parts (3131048)
Seamless steel pipe shall be used for high-pressure boiler (385310)
For low- and media-pressure boiler, seamless steel pipe is used (GB3087)
Carbon construction steel (313700)
Spiral welded steel pipe (SY5036~5039)
Low-pressure stream conveyance with welding steel pipe (3133092)
Steel pressure vessel (GB150)
Carbon steel covered electrode (GB5117)
Low alloy structural steel (GB5118)
Technical specifications on pipeline stress calculation of fossil fuel power plant (SDGJ6)
Electric power construction and technical specification for the acceptance (pipeline section) (DJ56)
Electric power construction and technical specification for the acceptance
(Welding in fossil fuel power plant) (DL5007)
Electric power construction and technical specification for the acceptance
(Radio examination of the steel load-bearing pipeline butt-jointed seams) (SD143)
Metallic technical supervision specification of the fossil fuel power plant (DLA38)
Supervision code for boiler of power industry (SDl67
