GB/T 11943-2008 English PDF

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GB/T 11943-2008: Boiler drawings
Status: Valid

GB/T 11943: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 11943-2008	819	Add to Cart	6 days	Boiler drawings	Valid
GB/T 11943-1989	RFQ	ASK	9 days	Boiler drawings	Obsolete

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Basic data

Standard ID: GB/T 11943-2008 (GB/T11943-2008)
Description (Translated English): Boiler drawings
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J98
Classification of International Standard: 27.060; 01.100
Word Count Estimation: 37,382
Date of Issue: 2008-01-31
Date of Implementation: 2008-07-01
Older Standard (superseded by this standard): GB/T 11943-1989
Quoted Standard: GB/T 4458.1; GB/T 4458.4; GB/T 4458.5; GB/T 4458.6; GB/T 6567.5
Regulation (derived from): National Standard Approval Announcement 2008 No.2 (Total No.115)
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 design of the boiler drawing specific requirements. This standard applies to boiler, boiler steel, accessories and auxiliary equipment design drawing, within the range of boiler pipes.

GB/T 11943-2008: Boiler drawings

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Boiler drawings ICS 27.060; 01.100 J98 National Standards of People's Republic of China Replacing GB/T 11943-1989 Boiler Drawing Posted 2008-01-31 2008-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 1 General Provisions 4 tube drawing and dimensioning 2 5 drum, set top box painting and dimensioning 14 6 steel drawing and dimensioning 18 7 sectional symbols and graphic symbols 25 Appendix A (informative) pipe isometric drawing 30 Annex B (informative) furnace wall insulation material sectional symbol 32 1 level 2 symbol Figure 2 provincial gas serpentine tubes 2 Figure 3 hole trap 3 Figure 4 Wall fin tube 3 Figure 5 tube opening 4 Figure 6 end necking 4 Figure 7 is welded tubes Annex 4 8 pin tube 5 9 line pipe and other component parts (a) 5 10 pipe and other piping component parts (b) 5 11 space tube positive and negative elements 6 12 Space pipe 6 FIG tube 13 left and right parts 7 14 tubes of positive and negative elements 8 15 table of FIG. (A) 8 16 table of FIG. (B) 9 FIG. 17 is connected with the valve tube welding 9 18 tube connected to the valve flange 9 19 Membrane Water pipe group 10 20 Membrane Water positive and negative elements 10 21 Membrane Water Positive and Negative contour representation 11 Membrane Water 22 parts contour map showing 11 Figure 23 air preheater 12 24 superheater serpentine tubes 12 25 pipe dimensions specified 13 26 gauge elbow 13 Figure 27 horizontal cylinder bearing labels 14 28 vertical orientation diagrams of the barrel 14 29 a front view of the drum 15 30 Header 15 31 drum to hose connector 16 32 header left and right 16 Figure 33 Figure 17 Expand Header Figure 34 Figure 17 drum Expand 35 hole size similar coloring represented 17 Close to 36 holes the size of letters 18 37 drum internal expansion means 18 38 pitches ranging staggered rows of holes marked 18 39 steel front wall 19 Figure 40 rigid beam arrangement of Figure 20 41 different high-level platform stairs standard floor plan 21 42 platform stairs (a) 21 Figure 43 stairs platform (b) 21 Simplified diagram representing 44 column cut after 22 Simplified cut after 45 Leung said 22 46 single Genzhu assembly 23 Figure 47 assembly segments single column of 24 Figure 48 frame guard, platform 25 49 structure of positive and negative 25 Figure A. 1 jet pipe (a) 30 Figure A. 2 water pipes (two) 30 Figure A. 3 line 31 Table 1 Symbols and abbreviations 1 Table 2 Comparative Example 2 Table 3 dimension line terminal 2 form Table 4 sectional symbol 26 Table 5 and graphic symbols 27 holes Table 6 graphic symbols 28 valves and accessories Table B. 1 furnace wall insulation materials sectional symbol 32

Foreword

This standard replaces GB/T 11943-1989 "Boiler Drawing." This standard compared with GB/T 11943-1989 main changes are as follows. --- General in Chapter 3, the increase in the general view of the boiler, the requirements of section diagram clearly left and right side of the boiler water wall, dividing the header in principle; --- In Chapter 4, the tube drawing and dimensioning, increasing the legend and membrane tubes with a single thick solid line indicates the Wall and the shaft Mapping painting, etc; --- In Chapter 5, drum, set top box and the dimensions of the painting, the increase in the inner drum surface by an expanded view of the legend, hole size similar And unequal pitch staggered rows of holes tagging methods; --- Chapter 6 steel painting and dimensioning, increasing the general view of the boiler steel structure and steel general plan requirements, rigid beam arrangement Legend with a single thick solid line maps; --- In Chapter 7, a cross-sectional symbols and graphic symbols, increasing the graphic symbols hole, the pipe system of valves and accessories graphic symbols; --- Added Appendix A (informative) pipe isometric drawings; --- Added Appendix B (informative) furnace wall insulation material sectional symbol. The Standard Appendix A, Appendix B is an informative annex. This standard by the National Standardization Technical Committee of the boiler pressure vessel (SAC/TC262) and focal points. This standard by the National Standardization Technical Committee of the boiler and pressure vessel boiler Technical Committee (SC1) organization revised. This standard was drafted. Beijing Babcock & Wilcox Company. The main drafters of this standard. Guo Yi, Luo sound. This standard replaces the standards previously issued as follows. --- JB2632-1981; --- GB/T 11943-1989. Boiler Drawing

1 Scope

This standard specifies the special drawing boiler product design requirements. This standard applies to the boiler, the boiler steel structure drawing, scope boiler pipes, accessories and auxiliary equipment pattern.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 4458.1 Mechanical drawings - view (GB/T 4458.1-2002, ISO 128-34.2001, MOD) GB/T 4458.4 Mechanical drawings - Dimensioning GB/T 4458.5 Mechanical drawings with dimensional tolerances and injection method Sectional GB/T 4458.6 Mechanical drawings - view and a sectional view (GB/T 4458.6-2002, ISO 128-44.2000, MOD) Graphics Graphical symbols line GB/T 6567.5 piping systems, fittings and valves symbol isometric drawing method

3 General

Figure 3.1 Total boiler shall meet the following basic requirements. a) general view shows only the boiler assembly relations ministries, between the components, the number and arrangement pattern may lead parts list parts concerned Section boiler components in the order listed in the General List; b) Boiler general view title bar should be indicated Boiler Model; c) the boiler when the total number of sheets of drawings Figure Composition, specifications and technical requirements of the boiler should be located Home. 3.2 boiler unit, component diagram should be drawn portion, the overall arrangement of the components, for which the structure should seek to repeat simplified. 3.3 Boiler left and right water wall, set top box, so as to face the front of the boiler wall to divide the "left", "right" pieces. Generally symmetrical member is appropriate, "positive", "against" member FIG. 3.4 boiler parts and components, should be drawn separately drawings, in the following circumstances do not allow individual drawing parts and components Figure. a) after punching or cutting steel vertical no longer by the other machined parts. b) simple parts from steel plate punching or gas cutting made in Fig or assembly unit, drawing on a detailed assembly diagram. c) purchased the finished piece. Purchased parts and components if still partial processing, in addition to the processing section showing detail, the rest can be omitted representation. 3.5 symmetrical parts, assembly unit, generally draw a pattern on the graph shows graphs only one of the parts, the Ministry of assembly, another zero Member assembly unit in its symmetrical parts are indicated by the imaginary line, this time should be separately marked "left" on the pattern, "right" member or "positive", "against" member. The same or similar shaped parts, components section 3.6 Structure, should be drawn into the table of FIG. 3.7 can be omitted in the following cases view. a) a view can be expressed clearly do not have to configure a second view; b) opening on the boiler components, special representation is not a through hole; c) dimensioning, should make full use of symbols and abbreviations, see Table 1; Table 1 Symbols and Abbreviations Title diameter sphere diameter sphere radius square radius of uniform thickness plane D) When parts with bending or stamping method made only after the commencement of the length or dimensions to meet the requirements, do not draw ......

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