GB/T 51413-2020 in English
VALIDStandard for design of waste heat utilization in non一ferrous metal industry
- Issued on:2020-01-16
- Implemented on:2020-08-01
- File Format:PDF
- Delivery:Via email within 5 business days
$592.00
本标准适用于新建、扩建和改建的有色金属工业余热利用设计。
Introduction
1. Background and significance of standard formulation
This standard is based on the <2016 Engineering Construction Standards and Specifications Formulation and Revision Plan> issued by the Ministry of Housing and Urban-Rural Development, and aims to standardize the design of waste heat utilization in the non-ferrous metal industry, ensure safe production, save energy, protect the environment, and achieve the goals of advanced technology and economic rationality. The standard drafting team conducted extensive investigations and studies on domestic and foreign practical experience, referred to international standards and foreign advanced technologies, and finally formed this standard.
2. Standard framework and main contents
| Chapter number | Chapter content | Main clauses |
|---|---|---|
| 1 | General principles and terminology | - Clarify the definition and classification of waste heat - Standardize the use of terminology |
| 2 | Basic provisions | - Overall design requirements for waste heat utilization systems - Equipment adaptability and safety standards |
| 3 | Waste heat resources | - Resource level classification (Table 4.1.1) - |
| 4 | Waste heat calculation method | - Derivation of waste heat formulas for high-temperature flue gas, slag, products, etc. - Calculation of heat exchange efficiency of different media |
| 5 | Waste heat utilization system | - Configuration requirements for waste heat boilers and systems - Technical parameter specifications for heat exchange equipment |
3. Standard Implementation and Recommendations
Case Study: Optimization of Waste Heat Utilization System of an Aluminum Plant
Through the implementation of this standard, an aluminum plant successfully increased the flue gas waste heat recovery efficiency by 15%, saving approximately RMB 500,000 in energy costs annually. It is recommended that in actual application:
- Design and construction should be carried out in strict accordance with the standards
- Strengthen equipment maintenance and monitoring
- Regularly evaluate the system operation effect and optimize it
4. Comparison table of waste heat resource classification
| Resource level | Criteria | Examples of common waste heat resources |
|---|---|---|
| First class | Payback period<6 years Temperature>400°C | Waste heat from combustible exhaust gas, waste heat from high-temperature flue gas |
| Second class | Payback period 6-12 years Temperature 250°C-400°C | Medium temperature flue gas waste heat, slag waste heat |
| Third grade | Payback period> 12 years Temperature <250°C | Cooling water waste heat, residual carbon waste heat |
5. Implementation suggestions
Technical level:Enterprises should give priority to high-efficiency heat exchange equipment and automated control systems to ensure the stable operation of waste heat recovery systems.
Economic level:It is recommended to conduct detailed technical and economic analysis, reasonably configure waste heat utilization facilities, and avoid over-investment.
Management level:Establish a sound monitoring and maintenance mechanism, regularly evaluate system efficiency and optimize operating parameters.
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