DL 5190.8-2019 English PDFUS$1779.00 · In stock
Delivery: <= 9 days. True-PDF full-copy in English will be manually translated and delivered via email. DL 5190.8-2019: (Technical specification for electric power construction - Part 8: Processing and preparation) Status: Valid DL 5190.8: Historical versions
Basic dataStandard ID: DL 5190.8-2019 (DL5190.8-2019)Description (Translated English): (Technical specification for electric power construction - Part 8: Processing and preparation) Sector / Industry: Electricity & Power Industry Standard Classification of Chinese Standard: P61 Word Count Estimation: 71,759 Date of Issue: 2019-06-04 Date of Implementation: 2019-10-01 Older Standard (superseded by this standard): DL 5190.8-2012 Regulation (derived from): Natural Resources Department Announcement No. 7 of 2019 Issuing agency(ies): National Energy Administration DL 5190.8-2019: (Technical specification for electric power construction - Part 8: Processing and preparation)---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. Technical specification for thermal power erection and construction-Part 8.processing and prefabrication ICS 27.100 P 61 Record number. 60035-2017 People's Republic of China Electric Power Industry Standard Replace DL/T 5190.8-2012 Technical specifications for electric power construction Part 8.Processing and Preparation 2019-6-4 release 2019-10-01 implementation Issued by National Energy Administration People's Republic of China Electric Power Industry Standard Technical specifications for electric power construction Part 8.Processing and Preparation Editor-in-chief. China Electricity Council Approval department. National Energy Administration Effective date. October 1,.2019 China Electric Power Press 2019 Beijing ForewordThis part is based on the "On Printing and Distributing the.2017 Energy Sector Industry Standard System (Revision) Plan and English Version The requirements of the “Notice of the Translation and Publication Plan” (Guoneng Zongtong Technology [2017] No. 52) are set out in Part 8 Sub-processing and preparation" DL 5190.8-2012 revised on the basis of. The "Technical Specification for Electric Power Construction" (DL/T 5190) consists of the following X parts. DL/T 5190.1 Part 1 Civil Engineering DL/T 5190.2 Part 2 boiler unit DL/T 5190.3 Part 3 Steam Turbine Generator Set DL/T 5190.4 Part 4 Thermal Instrument and Control Device DL/T 5190.5 Part 5 Piping and System DL/T 5190.6 Part 6 Water treatment and hydrogen production equipment and systems DL/T 5190.8 Part 8 Processing and Preparation DL/T 5190.9 Part 9 Hydraulic Structure This part is part 8 of "Technical Specification for Electric Power Construction Construction" DL/T 5190.Processing and Preparation (hereinafter referred to as "this part"). The main contents of this part include. general rules, basic regulations, material inspection and storage, flue gas material pipes and their parts, soft drinks Pipelines and their parts, steel welded atmospheric pressure vessels, metal components, others, technical quality documents, etc. The main contents of this section are revised as follows. --Added content such as green construction and finished product protection and metal detection. --Refer to the current industry standards to modify the relevant content of cold-formed pipes. --Relevant technical data has been revised. -Deleted the painting primer, platform steel ladder installation, etc. irrelevant to this section. This part was proposed by the China Electricity Council. This part is under the jurisdiction of the Thermal Power Construction Standardization Technical Committee of the Electric Power Industry. Editor-in-chief of this section. China Energy Construction Group Anhui Electric Power Construction First Engineering Co., Ltd. Participating unit of this section. China Power Construction Group Sichuan Engineering Co., Ltd. China Power Construction Group Guizhou Engineering Co., Ltd. China Energy Source Construction Group Jiangsu Electric Power Design Institute Co., Ltd. The main drafters of this section. Liang Binghai, Zhang Dongmao, Shi Yucheng, Zhang Suoqing, Zhang Xiaodong, Li Jun, Chen Lin, Yuan Bing, Chen Peng, Li Peng, Du Mingjing, Peng Changyang, Li Chuangye, Zhou Jianhao, Chen Wanxun, Chen Guanpin, Liu Qingyu, Xiao Jun, Jiang Xiaofeng, Duan Qiangming, Dang Xianbing The main reviewers of this section. Zhu Yongxian, Zhang Yaoqing, Jiang Yan, Li Lidong, Zhang Chunli, Wang Hongwei, Zheng Junli, Li Shenglu, Zhou Jianglian, Bao Lixin, Chen Xuebing, Jiang Xiaoyun, Wu Xiufeng, Li Fenghua, Zhang Shaomin This part replaces DL 5190.8-2012 "Electric Power Construction Technical Code Part 8 Processing and Preparation" from the date of implementation. During the implementation of this part, if any comments or suggestions are fed back to the Standardization Center of China Electricity Council (Address. Beijing Bai No. 1, Ertiao Guanglu, Zip Code. 100761)Table of contents1 General...1 2 Basic regulations...2 2.1 General regulations...2 2.2 Green construction and finished product protection...2 2.3 Stakeout and blanking...2 2.4 Splicing and correction...3 2.5 Welding...5 2.6 Metal detection...6 2.7 Surface treatment...6 3 Inspection and storage of materials...8 3.1 General regulations...8 3.2 Steel...8 3.3 Welding materials...8 3.4 Standard fasteners for connection...9 4 Smoke and wind, material pipes and their parts...10 4.1 General regulations...10 4.2 Pipes and special-shaped parts...10 4.3 Flange...11 4.4 Compensator...12 4.5 Manhole doors and ash removal holes...13 4.6 Supports and hangers...13 5 Soda pipes and their parts...15 5.1 General regulations...15 5.2 Cold-formed pipe...15 5.3 Welded steel pipe...16 5.4 Welded fittings...16 5.5 Flange and its flange cover...18 5.6 Hangers...19 6 Steel welded atmospheric pressure vessel...20 6.1 General regulations...20 6.2 Rectangular atmospheric pressure vessel...20 6.3 Round atmospheric pressure vessel...21 6.4 Vertical cylindrical steel welded storage tank...21 7 Metal components...25 7.1 General regulations...25 7.2 Steel columns and beams...25 7.3 Platforms, steel ladders and railings...26 8 Other...28 8.1 Pad...28 8.2 Anchor bolts...28 9 Technical Quality Documents...29 Standard term description...30 List of Reference Standards...31 Article description...321 General1.0.1 In order to standardize the technical management of the processing and preparation of power construction projects, the standards and technical requirements that should be implemented in the unified processing and preparation are specially made Set this part. 1.0.2 This Part is applicable to all kinds of new, expanded and rebuilt thermal power installation projects and nuclear power conventional island installation projects. Construction technology management. 1.0.3 The technical requirements for processing and preparation construction shall not only conform to this part of the "Technical Specifications for Electric Power Construction Construction", but shall also conform to the current national The relevant standards. DL/T 5190.8-20192 Basic regulations2.1 General rules 2.1.1 When materials and parts are transported, processed and stored, measures should be taken to prevent deformation, damage and corrosion. 2.1.2 When the working environment temperature is lower than the following temperature, the steel should not be cold worked. 1 Ordinary carbon steel -16℃. 2 Low alloy steel -12℃. 2.1.3 The machining of mechanical parts that do not indicate the technical requirements shall meet the following requirements. 1 The dimensional tolerances of linearity, angle and bore diameter without tolerances shall be in accordance with "Tolerance of inches" GB/T 1804 provides m-level accuracy. 2 The thread tolerances that are not specified shall comply with the 6-level precision requirements in the "Common Thread Tolerance" GB/T 197. 3 The surface roughness of the thread shall not be greater than Ra25μm. 4 The end of the thread should meet the requirements of GB/T 3 in "Ending, shoulder distance, undercut and chamfering of ordinary threads". 2.1.4 Forgings that do not indicate the technical requirements for dimensional tolerances, form and position tolerances and machining allowances shall be processed in accordance with the "Steel Die Forgings Tolerance and Machine Machining Allowance" GB/T 12362. 2.2 Green construction and finished product protection 2.2.1 The processing and preparation of green construction shall meet the following requirements. 1 New technologies, new processes, new processes, new equipment and new materials should be adopted, and highly polluting process technologies should not be used. 2 The construction site should adopt a circular channel, which is always combined with one another to reduce land occupation. 3 The layout of the site should optimize the process flow, shorten the transportation distance, and should be within the coverage of large hoisting machinery. 4 Turnover materials should be maintained regularly to increase the recycling rate. 5 Materials should enter the site in accordance with the processing flow and planned order, with a quota of materials, and a reasonable discharge to reduce waste. 6 Energy-saving and environmentally-friendly construction equipment and machinery should be used, and the utilization rate should be increased. 7 Temporary power lines should be reasonably arranged, and energy-saving lamps should be used. 8 Water-saving pipe fittings should be used to suppress dust, and test water should be recycled. 9 Sewage discharge should meet the requirements of "Integrated Wastewater Discharge Standard" GB 8978. 10 On-site noise control should be implemented in accordance with the "Environmental Noise Emission Standard for Construction Sites" GB 12523. 11 The electric welding arc light pollution during processing and preparation should be reduced. 12 Do not use materials, technologies and equipment that are explicitly prohibited by the state. 13 After the work is completed, the site is cleaned up, and the waste generated during the processing and preparation process should be legally disposed of. 2.2.2 The protection of processed and formulated materials and finished products shall meet the following requirements. 1 The stacking site should be level, with reasonable support pads, unobstructed roads, and complete drainage facilities. 2 Small parts such as bolts and pads should be stored indoors. 3 During on-site transportation, multi-point support measures should be taken for easily deformable materials and finished products. 4 When hoisting, the hoisting points should be arranged reasonably, and protective measures should be taken between the wire rope and the material and finished product. 2.3 Stakeout and blanking 2.3.1 The lofting platform should be stable and flat, the horizontality and verticality should meet the requirements of processing accuracy, and the surface should not have any attachments and impurities that hinder the laying out. Things. 2.3.2 Stakeout should be designed by computer. When stake out on the stake out platform, the large sample should be drawn at a ratio of 1.1.When the stake out size is too large It is advisable to stake out in sections. 2.3.3 The production of samples and rods shall meet the following requirements. 1 The samples and rods should be made of flat, straight and rigid materials. 2 The finished template and sample rod should be clearly marked. 3 The allowable deviation of the sample plate and sample rod production should meet the requirements of Table 2.3.3. 2.3.4 The marking of parts shall meet the following requirements. 1 The material should be visually inspected before marking, and the allowable deviation of the material that needs to be corrected after correction should meet the requirements of Table 2.4.6. 2 The marking of stainless steel materials should have anti-carburization isolation measures, should not produce scratches and meet the surface accuracy requirements. 3 When scribing, the allowances for material cutting, machining and welding shrinkage should be considered. 4 The allowable deviation of part marking shall meet the requirements of Table 2.3.4. 2.3.5 The blanking of carbon steel and common alloy steel should be mechanical cutting or gas cutting; stainless steel and non-ferrous metal materials should be mechanical Cutting or plasma cutting. 2.3.6 For the parts processed on the edge, sufficient machining allowance should be reserved. 2.3.7 The cut surface of steel should be free of cracks, delamination, slag inclusions and missing edges greater than 1mm. 2.4 Splicing and correction 2.4.1 Material splicing should be spliced by equal-strength welding; when the strength of the connection weld is less than the strength of the base metal, reinforcement should be carried out. 2.4.2 When welding H-beams on site, the distance between flange plate splicing welds and web splicing welds shall not be less than.200mm. Flange plate splicing length The degree should not be less than 2 times the board width and not less than 500mm. The web splicing width should not be less than 300mm, and the length should not be less than 600mm. The web The spacing of splicing welds should not be less than.200mm. 2.4.3 Measures to reduce welding deformation shall be taken for the splicing of materials, and the flatness, stagger, bending, etc. shall comply with the "Welding Technology for Thermal Power Plants" Regulations "DL/T 869". 2.4.4 The heating temperature of carbon structural steel and low-alloy structural steel should not exceed 900℃ during heating correction. Low alloy structural steel is heating Cool down naturally after correction. 2.4.5 The minimum radius of curvature and maximum bending height of steel cold straightening and cold bending shall meet the requirements of Table 2.4.5. 2.4.6 The allowable deviation of the steel after correction should meet the requirements of Table 2.4.6. 2.5 Welding 2.5.1 The steel materials, welding materials, welding methods, welding heat treatment, etc. used for the first time shall be in accordance with "Welding Procedure Qualification Regulations" DL/T 868 Perform welding procedure qualification. 2.5.2 The form and size of welding grooves not indicated shall be in accordance with "Recommended grooves for gas welding, electrode arc welding, gas shielded welding and high energy beam welding" GB/T 985.1 and "Recommended Groove for Submerged Arc Welding" GB/T 985.2 shall be implemented. 2.5.3 The weld grades of steel structures shall be graded according to the load properties, stress conditions, working conditions and importance of the parts. 1 First-class welds. butt welds, butt and fillet welds that bear tensile and shear forces and are designed with equal strength. 2 Secondary welds. butt welds, butt welds and fillet welds that are designed with equal strength under pressure. 3 Third-level welds. welds other than the first and second-level welds. 2.5.4 The classification of welds for smoke and wind, material pipes, and soda pipes shall be implemented in accordance with DL/T 869 of the "Technical Specification for Welding of Thermal Power Plants". 2.5.5 When any of the following situations occurs during welding, effective measures shall be taken before welding. 1 The relative humidity is greater than 90%. 2 The surface of the weldment is wet or covered with snow and ice. 3 The wind speed during manual arc welding and submerged arc welding exceeds 8m/s. 4 The wind speed of argon arc welding and CO2 gas shielded welding exceeds 2m/s. 5 The ambient temperature of carbon structural steel is lower than -10℃; the ambient temperature of low-alloy structural steel is lower than 0℃. 2.5.6 The preheating before welding and the heat treatment after welding shall be in accordance with "Technical Regulations for Welding of Thermal Power Plants" DL/T 869 and "Welding of Thermal Power Plants" DL/T 819 "Technical Regulations for Heat Treatment" shall be implemented. 2.5.7 The unqualified welds can be repaired by digging and repairing. However, the number of excavations and repairs on the same position should generally not exceed three times. If more than twice, quality analysis should be carried out before repairing, and the repairing process measures should be approved by the person in charge of welding technology before implementation. 2.5.8 The repaired welds should be inspected according to the original method. 2.5.9 Different types of welding rods should be classified and marked, and mixed use is strictly prohibited. 2.5.10 The allowable dimensions of the weld shape should meet the requirements of Table 2.5.10. 2.6 Metal detection 2.6.1 Non-destructive testing of welded joints shall meet the following requirements. 1 Carbon structural steel should be carried out after the welds are cooled to ambient temperature. For welds that are prone to delayed cracks, they should be carried out 24 hours after the completion of welding. get on. 2 The first and second level welds with full penetration shall be inspected for internal defects by ultrasonic testing. When judging, radiographic flaw detection should be used. 2.6.2 Welded joints of pipe fittings with working pressure between 0.1MPa and 1.6MPa for steam and water pipelines shall be subject to radiographic inspection of 1% of the total weld length. The standards for non-destructive testing of welded joints shall comply with "Radiographic Inspection Technology and Quality Classification of Metal Fusion Welding Butt Joints" DL/T 821 and "Pipeline Technical Specification for Ultrasonic Inspection of Welded Joints" DL/T 820 Class B. 2.6.3 The non-destructive testing standards for welded joints of steel structures shall comply with the "Manual Ultrasonic Testing Method for Steel Welds and Classification of Testing Results" GB 11345 or "Radiography of Metal Fusion Welding Joints" GB/T 3323 Class B. The quality level should meet the requirements of Table 2.6.3. 2.6.4 The non-destructive testing of welded joints for steel atmospheric pressure vessels shall comply with the relevant regulations in Chapter 6 of this Part. 2.7 Surface treatment 2.7.1 When parts and steel need to be derusted, spray or projectile derusting and manual or power tools can be used to derust. Steel sheet after treatment The surface should be free of welding slag, welding bead, spatter, dust, oil and burrs. 2.7.2 Measures should be taken to prevent dust pollution when spraying and projecting rust on parts and steel surfaces. Relative humidity of construction environment is not It should be more than 85%, and there should be no condensation on the surface of parts and steel. 2.7.3 When spraying rust removal, the compressed air used should be free of visible oil, water and dirt. 2.7.4 After rust removal, the surface of parts and steel before primer coating should meet the current relevant national standards or design requirements, and the design documents are not specified The rust removal grade of the parts and steel surface of the steel should meet the requirements of Table 2.7.4. 2.7.5 The milled end faces of the parts shall be protected by varnish after milling. 2.7.6 The primer should be painted in time after the surface treatment, and the logo should be transplanted before and after the primer. 2.7.7 The following parts shall not be painted with primer, and protective measures shall be taken. 1 High-strength bolts connect the friction surface. 2 The contact surface between the base plate of the column foot and the foundation. 3 Fully enclosed inner surface of parts. 4 Machined surface required for mechanical installation. 5 Design requirements not to be painted. 2.7.8 The surface of the parts within 50mm on both sides of the welding seam (before the test is qualified) and the installation welding seam shall not be painted with primer for the time being. And should take protective measures.3 Inspection and storage of materials3.1 General rules 3.1.1 When materials enter the site, they shall be inspected in accordance with the contract or inspection standards. The variety, specification, quality, performance, etc. of the material should conform to the country Product technology and quality standard requirements. The quality of imported materials shall meet the design requirements and contractual agreements. 3.1.2 When the design documents have low-temp......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of DL 5190.8-2019_English be delivered?Answer: Upon your order, we will start to translate DL 5190.8-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 9 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of DL 5190.8-2019_English with my colleagues?Answer: Yes. 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