1 Scope
This standard specifies requirements for performance of "U-shaped tube-tube plate type" and "spiral tube-header type" high pressure feedwater heaters. This standard is applicable to assessment of performance of "U-shaped tube-tube plate type" and "spiral tube-header type" high pressure feedwater heaters whose tube side design pressure is 6~45 MPa and design temperature is not higher than 350℃; and whose shell side design pressure is not higher than 15 MPa and the design temperature is not higher than 510℃ in the steam turbine heat recoup system of the thermal power plant. It is also applicable to assessment of performance of the similar drain coolers and steam coolers.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this 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.
Contents
1 Scope
2 Normative References
3 Definitions
4 Specifications
5 Inspection and Acceptance
6 Tests of H.P. Heaters
7 Service Provisions
8 Painting, Packing and Transportation
