According to the arrangement of the document No. 45. (1986) of the State Planning Commission, the Ministry of Chemical Industry was the main editor, the Second Construction Company of China Chemical Engineering was the main editor, and the Fourth Construction Company of China Petrochemical Corporation participated in the compilation. Since October 1988, they have jointly compiled the industry standard of the People's Republic of China "Industrial Equipment and Pipeline Anti-corrosion Engineering Construction and Acceptance Specifications". After the draft of this specification was compiled, the comprehensive management department of engineering construction standards, in accordance with the provisions of the "Standardization Law of the People's Republic of China", designated this specification as the industry standard of the People's Republic of China. This specification is a comprehensive professional specification, applicable to the construction and acceptance of anti-corrosion linings and anti-corrosion coatings of industrial equipment, pipes and pipe fittings based on steel and cast iron in new, expanded and rebuilt engineering construction projects in the chemical, petrochemical, metallurgical and textile industries. Based on the standards of the Ministry of Chemical Industry, this specification carefully summarizes the anti-corrosion construction experience of the metallurgical, petrochemical, and aerospace industries, coordinates relevant domestic standards, and timely incorporates the content and regulations of foreign advanced standards that are suitable for my country's national conditions. It supplements the use regulations of new materials, new equipment, and new processes in recent years for substrate surface treatment, rubber lining, metal spraying, and testing instruments. During the preparation of this specification, extensive research was conducted, various types of seminars and consultation meetings were held, and the draft was finalized after review and approval meetings. This specification has a total of twelve chapters, forty-four sections, and ten appendices. It is equipped with clause explanations and is printed and published at the same time as the main text of the specification. The clause explanations are issued internally. It is hoped that all units will actively feedback their opinions on the use of this specification when implementing it, so that it can be supplemented and improved in the future. This specification applies to the construction and acceptance of anti-corrosion linings and anti-corrosion coatings for industrial equipment, pipes, and pipe fittings made of steel and cast iron, and does not apply to the food industry and nuclear power industry. HGJ 229-1991 Industrial Equipment, Pipeline Anti-corrosion Engineering Construction and Acceptance Specification HGJ229-1991 Standard Download Decompression Password: www.bzxz.net

Industry Standard of the People's Republic of China
Industrial Equipment and Pipeline Anti-corrosion Engineering
Construction and Acceptance Specification
HGJ229--91
1992 Beijing
Industry Standard of the People's Republic of China
Industrial Equipment and Pipeline Anti-corrosion Engineering
Construction and Acceptance Specification
HGJ 229-91
Editor:
Approval Department:
Effective Date:
China Chemical Engineering Second Construction Company
July 1, 1992
Changsha Design and Research Institute of Chemical Industry
Special Seal for Science and Technology Information
Document of the Ministry of Chemical Industry
91) Chemical Base No. 1007
About the Issuance of the Industry Standard of the People's Republic of China Industrial Equipment and Pipeline Anti-corrosion Engineering Construction and Acceptance Specification||t t||To all provincial, autonomous region, municipal chemical and petrochemical departments (bureaus), design institutes directly under the ministry, general companies and construction project departments:
According to the arrangement of the State Planning Commission's document No. 450 (1986) Appendix 21 and the Ministry of Chemical Industry's document No. 469 (88) Chemical Foundation, the People's Republic of China Industry Standard "Construction and Acceptance Specifications for Industrial Equipment and Road Anti-corrosion Engineering" edited by China Chemical Engineering Second Construction Company and co-edited by China Petrochemical Corporation Fourth Construction Company has completed the preparation and approval work and is now approved for issuance. The number is HGJ229-91 and will be implemented on July 1, 1992. From the date of implementation, the original Ministry of Chemical Industry standard HGJ229-83 will be used as the standard. The Ministry of Chemical Industry is responsible for the management and interpretation of this standard, and the Ministry of Chemical Industry's Engineering Construction Standards Compilation Center is responsible for publishing and issuing it.
Ministry of Chemical Industry
December 32, 1991
Preparation Instructions
According to the arrangement of the State Planning Commission's Document No. 450 (1986), the Ministry of Chemical Industry is the main editing department, China Chemical Engineering Second Construction Company is the main editing unit, and China Petrochemical Corporation Fourth Construction Company participated in the compilation. Since October 1988, they have jointly compiled the "Industry Standard of the People's Republic of China Industrial Equipment, Pipeline Anti-corrosion Engineering Construction and Acceptance Specifications". After the draft of this specification was compiled, the comprehensive management department of engineering construction standards, in accordance with the provisions of the Standardization Law of the People's Republic of China, designated this specification as the industry standard of the People's Republic of China. This specification is a comprehensive professional specification, applicable to the construction and acceptance of anti-corrosion linings and anti-corrosion coatings for industrial equipment, pipes and fittings based on steel and cast iron in new, expanded and renovated engineering construction projects in the chemical, petrochemical, metallurgical, textile and other fields. Based on the standards of the Ministry of Chemical Industry, this specification carefully summarizes the anti-corrosion construction experience of the metallurgical, petrochemical, and aerospace industries, coordinates relevant domestic standards, and timely incorporates the content and regulations of foreign advanced standards that are suitable for my country's national conditions. It supplements the use regulations of new materials, new equipment, and new processes in recent years for substrate surface treatment, rubber lining, gold screen spraying, and detectors.
During the preparation of this specification, extensive research was conducted, various types of seminars and consultation meetings were held, and the draft was finalized after review meetings and deliberation meetings. This specification has two chapters, 44 sections, and 10 appendices. It is equipped with clause explanations and is printed and published at the same time as the main text of the specification. The clause explanations are issued internally. It is hoped that all units will actively feedback their opinions on the use of this specification when implementing it, so that it can be supplemented and improved in the future. This specification is managed and interpreted by the Capital Construction Department of the Ministry of Chemical Industry. For consultation, please send a letter to the Construction Standardization Management Center of the Ministry of Chemical Industry, Kuizhong Middle Road, Shijiadian City, Hebei Province (Postal Code: 050000).
Basic Construction Department of the Ministry of Chemical Industry
December 10, 1991
2. Basic Provisions
General Provisions
2.2 Requirements for the substrate...
2.3 Requirements for welding
3 Pretreatment of metal surface
3.1 General Provisions
3.1 Hand or power tool treatment**
Dry blasting treatmentbZxz.net
Chemical treatment
Transportation and storage:
4 Brick and plate lining
General Provisions
Quality requirements for raw materials and finished products
4. 3 Preparation of cement
Cement village bricklaying, board and hook chain
Quality inspection
5 Rubber village
General provisions·
Quality requirements of raw materials.·
Lining construction of natural pepper rubber.·
Lining construction of ethylene glycol lining
Lining construction of pre-vulcanized butyl rubber
Final inspection and repair
【1）
6 FRP lining
6.1 General provisions*
6.2 Quality requirements for raw materials and FRP finished products
6.3 Preparation of FRP adhesive
6.4 FRP construction
6.5 Quality inspection
7 Soft polyvinyl chloride board lining
-General provisions
7.2 Quality requirements for raw materials
7.3 Soft polyvinyl chloride board lining construction by empty laying method and screw fixing method: 7.4 Soft polyvinyl fluoride board lining construction by bonding method. 7.5 Quality inspection.*||tt ||Construction of anti-stain coating
General provisions
8.2 Preparation and construction of coating
Quality inspection
9 Lining and pond lead
General provisions
Quality requirements for raw materials
Preparation and construction of lining and pond lead
9.5 Quality inspection 1
Air spraying
General provisions
Quality requirements for raw materials
Air spraying
Quality inspection
Safety technology
Project acceptance
：(46)
..4492
...(60)
.*.(60)
Appendix A
Appendix White
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
Appendix H
Appendix 1
Appendix J
Quality indicators of raw materials
Construction mix
Test methods for raw materials and finished products||tt| |Modulus and specific gravity of water glass Adjustment method
Heat treatment of water glass mastic and rubber vulcanization Parts Rubber sheet bonding village separation strength test
Repair requirements for natural oxyprene rubber when it is not vulcanized Cold test regulations
Making of gold surface roughness comparison sample block Explanation of terms used in this specification
Explanation of clauses
1 General
1.0.1 This specification is applicable to new, expanded and rebuilt engineering construction projects in chemical, petrochemical, metallurgical and other industries, and is not applicable to production maintenance or engineering construction projects with special requirements. 1.0.2 This specification is applicable to the construction and acceptance of anti-corrosion lining and anti-corrosion coatings for industrial equipment, pipes and pipe fittings made of steel and other iron, and is not applicable to the food industry and nuclear power industry.
1.0.3 The construction of anti-corrosion lining and anti-corrosion coatings must be carried out in accordance with the provisions of the design documents. When it is necessary to change the design, substitute materials or use new materials, the design department must be consulted.
1.0.4 The materials used in the construction of anti-corrosion projects must comply with the national industry standards or the provisions of this specification, and have factory certificates and inspection materials. If necessary, the raw materials should be spot-checked and re-inspected.
.1.0.5 The construction proportions of various anti-corrosion projects must be issued by a test agency with a second-level certificate before they can be used. The determined corrosion proportions shall not be changed arbitrarily;
The construction safety technology and labor protection of corrosion projects shall not only comply with the provisions of this specification, but also comply with the provisions of the relevant national standards and specifications in force.
2. Basic provisions
Control regulations: 21.1 The following conditions must be met before the anti-corrosion work can be carried out: 2.1.1.1 The design and technical documents are complete, and the construction drawings have been reviewed: 2.1.2. The construction plan and technical disclosure are completed, and complete technical training and necessary technical training are carried out: 2.1.3 Equipment, pipes and pipe fittings should have factory certificates or process handover certificates: 2.1.4. Materials, machines, testing instruments, construction equipment and sites are complete: 2.1.1.2 The protective facilities are safe and reliable, and the water, electricity, gas and steam used for construction can meet the needs of continuous construction. 21.2 The production of equipment, pipes and pipe fittings must meet the requirements of construction drawings and design documents. A comprehensive inspection and acceptance should be carried out before the anti-corrosion project is carried out. 2.1.3 During the construction of the anti-corrosion project, an intermediate inspection must be carried out. After the completion of the anti-corrosion project, an acceptance inspection should be carried out.
2.1.4 The welding of the outer wall accessories of equipment, pipes and fittings must be completed before the anti-corrosion project is constructed. Welding, gas cutting, direct impact and other operations are strictly prohibited during the construction of the anti-corrosion project.
2.1. 5 Before the anti-corrosion construction, the rotating equipment should have a static balance or dynamic balance test report. After the anti-corrosion construction, the static balance or dynamic balance review should be carried out. 2.1.6 Before the construction of the anti-corrosion project, the pressurized equipment, pipes and fittings must be inspected for strength or gas street according to relevant regulations. After passing the inspection, the anti-corrosion project construction can be carried out. 2.1.7 In order to ensure the safety of the anti-corrosion project construction or the convenience of construction, manholes must be set for the closed equipment that cannot be unloaded. The size and number of manholes should be determined according to the size of the equipment. The number of people should not be less than 2. 2.1.8 After the nuclear lip corrosion project is completed, when hoisting and transporting equipment, pipes, and pipe fittings, the plugs and the damage must be ensured: they should be properly kept before use, and the surface of the steel equipment, arms, and pipe fittings should not have scars, pores, slag inclusions, overlapping skin, and severe corrosion spots. The processed surface must be flat, and the local surface convexity and concavity should not exceed 2mm.
2.2.2 Cast iron and cast steel equipment, pipes, and pipe fittings should not have hollow and porous substrates.
2.2.3 · Sharp edges, angles, burrs, and casting residues on the surface of equipment, pipes, and pipe fittings must be thoroughly polished and cleaned, the surface should be smooth and flat, and the arc should be avoided. 2.2.4 Equipment pipes should not extend out of the inner surface of the equipment. Equipment covers, tower sections, and insertion pipes should be connected by flanges.
2.2.5 The riveted seams in the riveted equipment should be flat seams, and the rivets should be countersunk rivets so that there is no protruding nail head inside the equipment.
2.2.6 On the equipment, pipes and pipe fittings with anti-corrosion lining, leak detection holes should be set when necessary, and exhaust holes should be set at appropriate positions. 2.2.7 After the surface pretreatment, the substrate should be fully inspected and qualified, and the process handover should be handled. After the visa is passed, the corrosion removal construction can be carried out. 2.3 Requirements for welding
2.3.1 Double-sided welding should be used for the welding of the equipment shell. The weld should be flat, without pores, weld nodules and clamping leaks. The weld height shall not be greater than 2mm. Welding spatter should be completely removed. The weld should be ground flat or into an arc-shaped weld (Figure 2.3.4 (1) 1). 2.3.2 The weld of the equipment shell must be welded continuously. The weld should not have cracks or continuous undercutting. The undercut depth should not exceed 0.5mm3
2.3.3 The welding requirements of the equipment corners and connecting pipes should be guaranteed. The weld chain should be full and the blunt angle should be finely drilled to form a rounded weld. There should be no burrs or edges. 2.3.4 The fillet height of the fillet weld should be H25mm, R23mm, and the inner angle should be R20mm (Figure 2.3.42)~(4)). Generally, the protruding angle
2.3.5 When cleaning the assembly tool, it is strictly forbidden to shoot the base material. It is strictly forbidden to strike the arc on the base material during the welding process.
(1) Butt weld
(3) Protruding weld line
Figure 2.3.4
(2) Welding
(4> Internal welding
Hui Ji Requirements
3 Metal surface treatment
3.1 General provisions
3.1.1 The quality level of the surface pretreatment of the metal screen shall meet the following regulations: Manual or power tool rust removal The quality level of the surface pretreatment of the metal screen is divided into two levels, St2 and St3
3.1.1.2 Spray or projectile rust removal The quality level of the metal surface pretreatment is divided into four levels: 1
Sal, Sa2, Sa2
Flame rust removal The quality level of the surface pretreatment of the metal screen is F1, 3.1 1. 3
Chemical rust removal, metal surface treatment quality level Pi. 3.1.1.4
3.1.2 Manual or power tool rust removal, spray or projectile rust removal and flame rust removal metal surface pretreatment quality level standard should comply with the steel surface rust level and rust removal level before installation (GB8923-882).
3.1.3 Chemical rust removal quality level Pi standard: After pickling, neutralization, passivation and drying, the metal surface should be completely free of grease, scale, rust products and other debris. The dielectric attached to the metal surface should be washed with water so that the metal surface should have a uniform color and no yellowing 3.1.4 The metal surface after blasting treatment should be a uniform rough surface. Except for the pits caused by the original rust of the saw plate or the mechanical damage, there should be no pits and burrs that are visible to the naked eye.
3.1.5 When the design has no quality requirements for the metal surface pretreatment of the anti-corrosion lining or layer, the quality of the metal surface pretreatment should meet the requirements of Table 3.1.5. 3.1.6 Before the metal surface is treated, one or more of the following methods should be used to clean the surface according to the type of pollutants, the severity of the pollution and the shape and size of the equipment: 53
Chemical rust removal, metal surface treatment quality level Pi. 3.1.1.4
3.1.2 Manual or power tool rust removal, spray or projectile rust removal and flame rust removal metal surface pretreatment quality level standard should comply with the steel surface rust level and rust removal level before installation (GB8923-882).
3.1.3 Chemical rust removal quality level Pi standard: After pickling, neutralization, passivation and drying, the metal surface should be completely free of grease, scale, rust products and other debris. The dielectric attached to the metal surface should be washed with water so that the metal surface should have a uniform color and no yellowing 3.1.4 The metal surface after blasting treatment should be a uniform rough surface. Except for the pits caused by the original rust of the saw plate or the mechanical damage, there should be no pits and burrs that are visible to the naked eye.
3.1.5 When the design has no quality requirements for the metal surface pretreatment of the anti-corrosion lining or layer, the quality of the metal surface pretreatment should meet the requirements of Table 3.1.5. 3.1.6 Before the metal surface is treated, one or more of the following methods should be used to clean the surface according to the type of pollutants, the severity of the pollution and the shape and size of the equipment: 53
Chemical rust removal, metal surface treatment quality level Pi. 3.1.1.4
3.1.2 Manual or power tool rust removal, spray or projectile rust removal and flame rust removal metal surface pretreatment quality level standard should comply with the steel surface rust level and rust removal level before installation (GB8923-882).
3.1.3 Chemical rust removal quality level Pi standard: After pickling, neutralization, passivation and drying, the metal surface should be completely free of grease, scale, rust products and other debris. The dielectric attached to the metal surface should be washed with water so that the metal surface should have a uniform color and no yellowing 3.1.4 The metal surface after blasting treatment should be a uniform rough surface. Except for the pits caused by the original rust of the saw plate or the mechanical damage, there should be no pits and burrs that are visible to the naked eye.
3.1.5 When the design has no quality requirements for the metal surface pretreatment of the anti-corrosion lining or layer, the quality of the metal surface pretreatment should meet the requirements of Table 3.1.5. 3.1.6 Before the metal surface is treated, one or more of the following methods should be used to clean the surface according to the type of pollutants, the severity of the pollution and the shape and size of the equipment: 5
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