HG/T 20701.10-2000 General Technical Specifications for Containers, Heat Exchangers and Special Equipment HG/T20701.10-2000 Standard download decompression password: www.bzxz.net

Instructions for the preparation of general technical regulations for containers, heat exchangers and special equipment HG/T20701.10-2000
1 Subject content and scope of application
This standard specifies the purpose, content and preparation instructions for the preparation of general technical regulations for containers, heat exchangers and special equipment, and is applicable to design technology management and quality management. 2 General technical regulations for equipment are prepared from
2.0.1 General technical regulations for equipment are a set of general technical regulations for equipment design, manufacturing and inspection compiled by the design unit. They are important technical attachments for equipment procurement (inquiry, ordering). They are usually compiled according to equipment categories and are applicable to general projects.
2.0.2 The general technical provisions for equipment are used in conjunction with equipment diagrams (equipment engineering drawings) and/or equipment data sheets in engineering procurement activities. They are the improvement and supplement of the design, manufacturing and inspection requirements in the equipment diagrams (equipment engineering drawings) and/or equipment data sheets. The purpose of their compilation is to tell bidders and suppliers (companies) what regulations and requirements should be followed for the design, material selection, manufacturing and inspection of the equipment they provide.
Contents of general technical provisions for equipment
Although the design, manufacturing and inspection requirements of various types of equipment are different, the basic contents of general technical provisions for equipment are similar, generally including six parts: general principles, design, materials, manufacturing, heat treatment, inspection and testing. 3.1 General
3.1.1 Scope The content and scope of application of this regulation are briefly described. 92
3.1.2 Specifications, standards and related technical documents - List the specifications, standards and engineering regulations and standards related to this type of equipment: - Indicate the handling method when the drawings and technical documents provided by the bidder or supplier deviate from these regulations and related documents:
- Indicate the priority order and handling method when there are differences in various related technical regulations and engineering documents. 3.1.3 Statement
Overview Describe the general requirements for the equipment design of the supplier (commercial) and the responsibilities of the supplier (commercial). Basic allowable stress
Describe the value of the basic allowable stress when the pressure parts (components) and non-pressure parts (components) use materials specified in the specifications and the calculation method of the basic allowable stress when using materials not specified in the specifications; specify the value of the basic allowable stress of the anchor bolts. 3.2.3
Shell and head
- Describe the design requirements for the welded joints of the shell and head. Opening reinforcement
Describe the selection requirements of the shell and head opening reinforcement structure type; describe the reinforcement design requirements.
3.2.5 Pipe
Describe the pipe connection design requirements:
-Describe the orientation requirements of the internal and external pipe flange bolt holes;-Describe the reinforcement requirements of small diameter pipes. 3.2.6 Manholes and handholes
Describe the selection principles of manhole and handhole connection surfaces: describe the manhole and handhole pipe structure type. 3.2.7
Corrosion and anti-corrosion
Describe the anti-corrosion measures and the selection principles of unspecified materials. Lining
Describe the selection principles of equipment lining type; specify the minimum thickness of the lining.
Equipment internals
Describe the design principles of the single size of the internals;-Describe the tower tray design principles and assembly requirements (for plate towers). 93
Requirements for the content that must be added for a certain specific equipment. 3.3 Materials
OverviewDescribe the basis for selecting equipment materials and the procedures and principles for adopting alternative materials. Pressure vessel materials
Describe the general and special requirements for pressure vessel materials;-Describe the requirements for composite steel plates for pressure vessels;-Describe the requirements for pressure vessel forgings.
Lining materials and internal materials
Describe the requirements for lining materials and internal materials. Bolt materials
-Describe the basis and requirements for selecting equipment flange bolt materials. Welding materials
Describe the basis and principles for selecting welding materials:-Describe the requirements for special welding materials.
Gasket materials
Describe the basis and requirements for selecting gasket materials;-Describe the requirements for special types of gaskets;-Describe the requirements for the number of spare parts for gaskets.
Manufacturing and heat treatment
OverviewDescribe the basis for equipment manufacturing and subcontracting issues. Weld joint design
Describe the principles and requirements for welding joint design. Cold forming and hot forming
Describe the definition of cold and hot forming;
Describe the requirements of cold and hot forming.
Welding preparation
Describe the general requirements of welding preparation. www.bzxz.net
Welding procedure qualification and welder skill qualification
Describe the general requirements of welding procedure qualification;-describe the special requirements of welding procedure qualification for special materials-describe the general requirements of welder skill qualification. 3.4.6 Welding
Describe the basic requirements and precautions of welding work. 3.4.7 Heat treatment
Describe the use occasions and requirements of heat treatment to improve performance; describe the basic requirements and precautions of post-weld heat treatment. 3.4.8 Dimension tolerance
-Describe the requirements of equipment dimensional tolerance.
Basic requirements for inspection and testing:
-Process inspection and final inspection;
Inspection and testing
-Manufacturer inspection, (user) inspection and third-party inspection. 3.5.2 Inspection and testing during manufacturing
Requirements for radiographic testing;
Requirements for ultrasonic testing;
Requirements for magnetic particle testing;
Requirements for liquid penetrant testing:
Requirements for other non-destructive testing.
3.5.3 Final inspection and testing
Requirements for hydraulic pressure testing;
Requirements for air pressure testing:
Requirements for air tightness testing or leakage testing;-Dimensional inspection.
Welding repair
Describe the general requirements for welding repair.
3.6.2 Surface treatment
-Surface treatment of stainless steel;
-Surface treatment of carbon steel;
-Surface treatment of non-ferrous metals.
3.6.3 Painting and packaging
-Painting requirements for carbon steel surfaces:
-Requirements for packaging.
Preparation Notes
4.0.1 The requirements of this standard for the content of general technical provisions for equipment are proposed for general pressure vessels. For some typical equipment (for example, various types of heat exchangers, storage tanks, special equipment, etc.), some aspects of the content can be added or deleted as appropriate according to the characteristics and requirements of the equipment.
4.0.2 When compiling the general technical provisions for equipment, it should be complete and accurate to meet the requirements for compiling procurement technical documents in engineering design. For general projects, it is usually selected without re-compilation, and it is only organized and compiled when the general technical provisions for equipment are missing. For a specific project or a certain procurement package of equipment, if some requirements are not included in the selected general technical provisions for equipment, they can be proposed in the schematic diagram (equipment engineering drawing) of a certain equipment or supplemented in the technical specification or purchase order of a certain equipment.
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