HOME   Cart(1)   Quotation   About-Us Tax PDFs Standard-List
Powered by Google-Search & Google-Books www.ChineseStandard.net Database: 189760 (24 Sep 2022)

GB/T 16508.4-2013 (GBT 16508.4-2013)

Chinese standards (related to): 'GB/T 16508.4-2013'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusGoogle Book
GB/T 16508.1-2022English459 Add to Cart 4 days Shell boilers - Part 1: General requirements GB/T 16508.1-2022 Valid GBT 16508.1-2022
GB/T 16508.4-2022English919 Add to Cart 7 days Shell boilers - Part 4: Fabrication, inspection and acceptance GB/T 16508.4-2022 Valid GBT 16508.4-2022
GB/T 16508.1-2013English140 Add to Cart 0--3 minutes. Auto immediate delivery. Shell boilers -- Part 1: General requirements GB/T 16508.1-2013 Valid GBT 16508.1-2013
GB/T 16508.4-2013English150 Add to Cart 0--3 minutes. Auto immediate delivery. Shell boilers -- Part 4: Fabrication, inspection and acceptance GB/T 16508.4-2013 Valid GBT 16508.4-2013
GB/T 16508-1996English2969 Add to Cart 14 days Strength calculation of pressure parts for shell boilers GB/T 16508-1996 Obsolete GBT 16508-1996


   
BASIC DATA
Standard ID GB/T 16508.4-2013 (GB/T16508.4-2013)
Description (Translated English) Shell boilers. Part 4: Fabrication, inspection and acceptance
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J98
Classification of International Standard 27.060.30
Word Count Estimation 28,247
Older Standard (superseded by this standard) GB/T 16507-1996
Quoted Standard GB 146.1; GB 191; GB/T 1804; GB/T 2652; GB/T 16507.5; GB/T 16508.1; GB/T 16508.2; GB/T 16508.3; GB/T 19293; GB/T 25198; NB/T 47013.10; JB/T 4730.1; JB/T 4730.2; JB/T 4730.3; JB/T 4730.4; JB/T 4730.5; JB/T 4730.6; NB/T 47014 (JB/T 4708); NB/T 47015 (JB/T 4
Drafting Organization Zhangjiagang Jiangnan Boilers and Pressure Vessels Ltd.
Administrative Organization National Standardization Technical Committee Boiler and Pressure Vessel
Regulation (derived from) National Standards Bulletin 2013 No. 27
Proposing organization National Boiler and Pressure Vessel Standardization Technical Committee (SAC/TC 262)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the fixed shell boiler manufacture, inspection and testing, factory data and nameplate requirements. This standard applies to GB/T 16508. 1 scoping shell boilers.


GB/T 16508.4-2013: PDF in English (GBT 16508.4-2013)
GB/T 16508.4-2013
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.060.30
J 98
Partially replacing GB/T 16507-1996
Shell Boilers -- Part 4: Fabrication, Inspection and
Acceptance
ISSUED ON: DECEMBER 31, 2013
IMPLEMENTED ON: JULY 1, 2014
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 7
4 Fabrication ... 8
5 Inspection and Test ... 33
6 Delivery Information and Nameplate ... 41
Appendix A (Normative) Welded Tube Orifice of Boiler ... 44
Foreword
GB/T 16508 Shell Boilers comprises the following eight parts:
-- Part 1: General Requirements;
-- Part 2: Material;
-- Part 3: Design and Strength Calculation;
-- Part 4: Fabrication, Inspection and Acceptance;
-- Part 5: Safety Appurtenances and Instruments;
-- Part 6: Combustion Systems;
-- Part 7: Installation;
-- Part 8: Operation.
This Part is Part 4 of GB/T 16508.
This Part was drafted according to the rules given in GB/T 1.1-2009.
This Part replaces the relevant contents such as fabrication, inspection, and
acceptance in GB/T 16507-1996 Rules for Construction of Stationary Boilers.
Compared with GB/T 16507-1996, the main technical changes are as follows:
a) ADD Chapter 3 "Terms and Definitions";
b) Chapter 4:
-- ADD management requirements for the use of new process, new technique,
and new method;
-- ADD requirements for butt welds of flat tube plate and arched tube plate;
-- ADD requirements for dimension deviation of corrugated furnace;
-- ADD requirements for dimension deviation of tube orifice center distance and
dimension deviation of tube orifice;
-- ADD forming requirements of threaded flue;
Shell Boilers -- Part 4: Fabrication, Inspection and
Acceptance
1 Scope
This Part of GB/T 16508 specifies the requirements for fabrication, inspection and test,
delivery information and nameplate of stationary shell boilers.
This Part is applicable to the shell boilers defined within the scope of GB/T 16508.1.
2 Normative References
The following referenced documents are indispensable for the application of this
document. For dated reference, only the edition cited applies. For undated reference,
the latest edition of the normative document (including any amendments) applies.
GB 146.1 Rolling Stock Gauge for Standard Gauge Railways
GB 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 1804 General Tolerances - Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications
GB/T 2652 Tensile Test Methods on Weld and Deposited Metal
GB/T 16507.5 Water-Tube Boilers - Part 5: Fabrication
GB/T 16508.1 Shell Boilers - Part 1: General Requirements
GB/T 16508.2 Shell Boilers - Part 2: Material
GB/T 16508.3 Shell Boilers - Part 3: Design and Strength Calculation
GB/T 19293 Method of X-Ray Radioscopy for Butt-Weld
GB/T 25198 Heads for Pressure Vessels
4 Fabrication
4.1 Basic requirements
4.1.1 Qualifications of boiler fabrication organization and operation personnel shall
meet those specified in GB/T 16508.1.
4.1.2 Materials for boiler fabrication shall meet the requirements of design document
and GB/T 16508.2.
4.1.3 Fabrication, inspection and acceptance of boilers shall meet the requirements
of TSG G0001 Boiler Safety Technical Supervision Administration Regulation, design
documents and this Part.
4.1.4 Adoption of new process, new technique and new method for boiler fabrication
and inspection unlisted in this Part shall be in accordance with relevant provisions of
TSG G0001 Boiler Safety Technical Supervision Administration Regulation.
4.2 Mark and mark transplantation
4.2.1 Material marks for pressure parts and main loaded non-pressure parts
(hanger/support and brace) shall have traceability. In the process of fabrication, if the
original mark is cut off or the material is divided into several pieces, the fabrication
organization shall specify the expression mode of the mark and complete mark
transplantation prior to the material cutting.
4.2.2 Weld of pressure part, weld of product welding specimen and surrounding fillet
weld between the pressure parts and the main loaded non-pressure parts shall be
printed with steel seal of welder code, or the welder code shall be recorded in the
welding record including weld map.
4.2.3 Non-destructive testing mark shall meet the requirements of NB/T 47013 (JB/T
4730).
4.2.4 In the area of inner and outer arcs of tube bend, hard imprint mark is not allowed
to be used.
4.3 Material cutting
4.3.1 Material cutting method is selected according to steel characteristics and
specification. The adopted cutting method shall ensure machining precision.
4.3.2 During thermal cutting, the material may be pre-heated according to the type
flange/boiler furnace hole flange on the tube plate to the starting point of the flange
bending is greater than 5mm may be polished or soldered according to 4.4.2.2.
4.4.2.4 Any crack and rip due to unsatisfied steel plate quality and over-burning, shall
not be subjected to repair welding.
4.4.3 Weld layout
4.4.3.1 The longitudinal welds of two adjacent shell sections at the shell (except that
with unequal wall thickness), shell and boiler furnace as well as the butt welds at the
head, tube plate, boiler furnace top or foot ring and the longitudinal weld at adjacent
shell sections shall not be connected with each other. The distance between the
centerlines of the welds (arc length of the excircle) is at least three times the thickness
of the thicker steel plate and greater than or equal to 100mm.
4.4.3.2 The distance (L) between centerlines of the butt welds at the boiler heating
surface tube (except the dissimilar steel joint) and the straight section of the tubing
shall meet the following requirements:
a) The outside diameter is less than 159mm and L is greater than or equal to 2
times of the outside diameter;
b) The outside diameter is greater than or equal to 159mm and L is greater than
or equal to 300mm.
Where the boiler structure is difficult to meet the requirements of this article, the heat-
affected zone of butt welds shall not be overlapped, and L shall be greater than or
equal to 50mm.
4.4.3.3 Boiler heating surface tube and tubing butt weld position shall meet the
following requirements:
a) The butt weld at the heating surface tube and tubing (except coil tube and
molded tube fittings) shall be located at the straight section of the tube;
b) The distance between the centerline of the butt weld at the heating surface tube
and the external wall of the shell and header, starting point of the tube bending
and the edges of the tube supports and hangers is at least 50mm; for boilers
with rated operating pressure of greater than or equal to 3.8MPa, the distance
is at least 70mm and that for the tubing shall not be less than 100mm.
4.4.3.4 Main welds at the pressure parts and the neighboring areas shall be kept
clear of the welded attachments. If impossible, the weld at the welded attachments
may be penetrated through the main weld, but shall not be ended at the main weld and
the neighboring areas.
4.4.3.5 Tube orifices in expansion connection shall not be arranged at the
longitudinal weld of the shell and also shall avoid being arranged at the circumferential
weld as much as possible.
4.4.3.6 The orifice of common down-comer shall not be made at the weld, and other
welded tube orifices also shall avoid being made at the weld and its heat-affected zone.
4.4.3.7 For the shell with nominal inside diameter of greater than 1800mm, quantity
of longitudinal butt welds at each section of the shell shall not be greater than 3 pieces;
for the shell and boiler furnace with the nominal inside diameter of not greater than
1800mm; quantity of longitudinal butt welds at each section of the shell shall not be
greater than 2. Arc length of the excircle between the longitudinal welds at each section
of the shell shall not be less than 300mm.
4.4.3.8 During shell splicing, length of any shell section at the shell and the boiler
furnace shall not be less than 300mm and that of any shell section at the header shell
shall not be less than 500mm.
4.4.3.9 Quantity of butt welds at the tube sheet and head with the nominal inside
diameter of greater than 2200mm shall not be greater than 2; that of the butt welds at
the tube sheet and head with the nominal diameter of not greater than 2200mm shall
not be greater than 1.
4.4.3.10 The distance from the butt weld of the head to the centerline of the head
shall not be greater than 30% of the nominal bore of the end, furthermore, the weld
shall not pass through the flange manhole or arranged on the circular arc of the plate
edge of manhole.
4.4.3.11 The whole piece of the butt weld of the flat tube plate shall not be arranged
at the flange arc, or penetrate through the flange hole.
4.4.3.12 Distance from ......