NB/T 10196-2019The norm of energy consumption per unit products of overhead conductors (English PDF)

3.1 Energy consumption per unit manufacturing process

The energy consumption per unit of qualified product produced by the main production system of each process, that is, the direct production energy consumption of each unit of product produced in each process.

The production process of overhead conductors mainly includes smelting, continuous casting and rolling, wire drawing, heat treatment, stranding, etc.

3.2 Indirect comprehensive energy consumption for unit output of overhead

conductor The auxiliary and subsidiary production systems of overhead wire manufacturing enterprises actually consume various energy and energy-consuming working fluids in the production process.

The loss in the storage, conversion and measurement of supply (including export) within the industry, and the energy consumption (excluding domestic electricity) allocated to the product.

3.3 Comprehensive energy consumption for unit output of overhead

conductor During the statistical reporting period, the overhead wire manufacturing enterprises went from feeding materials (aluminum ingots, master alloy ingots, etc.) to producing qualified overhead wire products.

The sum of the unit energy consumption of each process and the indirect comprehensive energy consumption of unit product in the production process.

3.4 Limit value of energy consumption per unit throughput

The maximum comprehensive energy consumption allowed by the qualified products of the existing overhead wire manufacturing enterprises is referred to as the current limit value.

3.5 Access value of energy consumption per unit throughput

The maximum comprehensive energy consumption allowed by the qualified products of the production units of newly-built and expanded overhead conductor manufacturing enterprises, referred to as the newly-built entry value.

3.6 Advanced value of energy consumption per unit throughput

The highest comprehensive energy consumption allowed when the energy efficiency of the qualified products of the overhead wire manufacturing enterprise reaches the leading level, referred to as the advanced value.

4.1 Energy consumption per process unit

4.1.1 Melting and heat preservation-unit energy consumption of continuous casting and rolling process

The unit energy consumption of the smelting heat preservation-continuous casting and rolling process shall be specified in accordance with the aluminum ingot remelting process and the aluminum liquid direct supply process, and shall meet the requirements in Table 1. Regulations.

4.1.2 Unit energy consumption of wire drawing process

The unit energy consumption of the drawing process should meet the requirements in Table 2.

4.1.3 Unit energy consumption of heat treatment process of aluminum alloy wire

The unit energy consumption of the heat treatment process of the aluminum alloy wire should adopt the regulations in Table 3.

4.2 Comprehensive energy consumption per unit product

Appendix A gives an example of the calculation method of the comprehensive energy consumption per unit product of overhead conductors. According to steel core aluminum stranded wire and steel core aluminum alloy stranded wire The current limit value, new entry value and advanced value of the unit energy consumption of the production process, respectively, calculate the existing limit of the comprehensive energy consumption per unit product Fixed value, new access value and advanced value. The comprehensive energy consumption per unit product corresponding to common specifications of steel core aluminum stranded wire and steel core aluminum alloy stranded wire should be respectively Meet the requirements in Table A.1 and Table A.2.

5 Requirements for energy consumption per unit product of aluminum-clad steel strand

5.1 Energy consumption per process unit

5.1.1 Unit energy consumption of pre-coating process

The unit energy consumption of the pre-coating process should meet the requirements in Table 5. If you directly use treatment-free steel wire rod, if you don't need the pre-treatment process for coating Then the energy consumption of this process is taken as 0.

5.1.2 Energy consumption per unit of coating process

The unit energy consumption of the coating process should meet the requirements in Table 6.

5.1.3 Unit energy consumption of wire drawing process

The unit energy consumption of the drawing process should meet the requirements in Table 7.

5.1.4 Energy consumption of stranding process

The unit energy consumption of the stranding process should meet the requirements in Table 8.

5.2 Comprehensive energy consumption per unit product

The comprehensive energy consumption per unit product of aluminum-clad steel strand is the sum of the unit energy consumption of each process and the indirect comprehensive energy consumption. According to the production workers of aluminum-clad steel strands Order the existing limit value, new entry value and advanced value of unit energy consumption, and calculate the existing limit value, New entry value and advanced value. The comprehensive energy consumption per unit product of commonly used aluminum-clad steel strands shall meet the requirements in Table A.3.

6.1 Statistical scope

6.1.1 Various energy actually consumed in the production of overhead wires

According to the actual production of overhead wires, the main energy consumed includes. primary energy (mainly including. raw coal, crude oil, natural gas, Water power, wind power, solar energy, biomass energy, etc.), secondary energy (mainly including. clean coal, other washed coal, briquette, coke, coke oven coal Gas, other gas, gasoline, kerosene, diesel, fuel oil, liquefied petroleum gas, refinery dry gas, other petroleum products, other coking products, Heat, electricity, etc.) and energy-consuming working fluids used in production (including. fresh water, softened water, compressed air, oxygen, nitrogen, helium, calcium carbide, etc.) Energy consumed.

6.1.2 Comprehensive energy consumption of overhead wires

The comprehensive energy consumption of overhead conductors includes. energy used in the production system, auxiliary production system and auxiliary production system; excluding the energy used in life And approved infrastructure projects. Among the energy actually consumed by the enterprise, the energy used as raw materials should also be included. Secondary energy or energy-consuming workers The various energy consumed by quality should be converted into the energy of primary energy according to the principle of energy equivalence. Among them, the indirect comprehensive energy consumption can be The proportion of energy consumption in actual production is allocated to the comprehensive energy consumption. The indirect comprehensive energy consumption of overhead wires can be 3% of the sum of the unit energy consumption of each process.

6.1.3 Various energy sources (including energy consumed in the production of energy-consuming working fluids) are converted into standard coal quantities

6.1.3.1 The fuel energy actually consumed by the enterprise shall be converted into standard coal based on its low (bit) calorific value. Low (bit) fever Fuels with an amount equal to 29307.6 kilojoules (kJ) are collectively referred to as 1 kilogram of standard coal (1kgce).

6.1.3.2 The purchased fuel energy can be calculated based on the measured low (level) calorific value or the measured value provided by the supplier, or use national statistics.

Refer to Appendix B for the conversion factor conversion of the accounting department. Except for electricity conversion based on equivalent value, other secondary energy and energy-consuming working fluids are all based on corresponding energy Equivalent conversion. When the company converts its energy to self-production, the standard coal quantity is converted according to the actual energy input; it is supplied by the centralized production unit for export When the energy equivalent value is required to be regulated by the competent authority; when purchasing and selling, the energy equivalent value should be the same; when the energy equivalent value is not provided, the It is converted according to the conversion coefficient of the national statistics department, and appended to Appendix C. Waste heat power generation is unified according to the conversion factor of electricity.

6.1.4 Regulations on product output per unit product energy consumption

The output of qualified overhead conductors produced during the statistical period of the same plan shall be used. The output of all products is officially released by the enterprise planning and statistics department The reported data shall prevail.

6.1.5 Calculation principles of energy consumption for waste heat utilization

The waste heat recovered by the enterprise belongs to energy conservation and recycling, not to the purchased energy. When calculating the energy consumption, it should be avoided to re-use the purchased energy.

Multiple calculations. The energy used by the waste heat utilization device is included in the energy consumption. The amount of heat and power generated by waste heat recovery in each process should be deducted if it is supplied to this process.

The amount of waste heat recovery deducted shall not be double-calculated; when transferring to other processes, the process used shall be included in the normal consumption; the recovered energy shall be converted into standard coal After that, it should be deducted from the process and process of recovering waste heat. If the energy consumption index for recovered waste heat is not deducted, it should be marked as "power generation with waste heat".

6.2 Calculation range

The energy consumption of the overhead conductor production process includes the melting process, continuous casting and rolling process, wire drawing process, heat treatment process, stranding process, etc. main The production raw materials include aluminum ingots for remelting, corresponding master alloy ingots and steel strands for reinforcement. This standard is aimed at existing overhead conductors (mainly including.

Steel core aluminum stranded wire, steel core aluminum alloy stranded wire, etc.) The energy consumption limit established by the main production processes and raw materials. refers to the input from remelting aluminum and intermediate alloys The energy used in the furnace until the qualified products are produced and enter the finished product warehouse, including the energy used by the auxiliary production system and the auxiliary production system.

6.3 Calculation method

6.3.1 Calculation of process unit energy consumption

The unit energy consumption of each process of overhead conductor is calculated according to formula (1).

6.3.2 Calculation of comprehensive energy consumption per unit product

The comprehensive energy consumption per unit product of overhead conductors is calculated according to formula (2).

7.1 Basic energy-saving management

7.1.1 The enterprise should establish an energy-saving assessment system, regularly assess the energy consumption of each production process, and decompose and implement the assessment indicators to each post.

7.1.2 The enterprise should be equipped with corresponding energy measurement instruments and establish an energy measurement management system in accordance with the requirements of GB 17167.

7.1.3 The enterprise shall establish an energy management system in accordance with the requirements of GB/T 23331.

7.1.4 Enterprises are encouraged to establish energy management centers to realize online data collection and analysis, and real-time monitoring of key energy-consuming equipment.

7.2 Energy-saving technical measures

Overhead conductor manufacturers should carry out technological transformation, adopt advanced production technology, and be equipped with advanced energy-saving equipment, such as direct supply of liquid aluminum The process uses measures such as smelting, heat preservation and rod making to maximize energy utilization and recover energy as much as possible.

A.1 Example of calculation method for comprehensive energy consumption per unit product of overhead conductor

The comprehensive energy consumption per unit product is the sum of the production energy consumption in each process for the production of 1t overhead wire products and the required intermediate products, plus the time Connect comprehensive energy consumption. The calculation example is as follows.

A.2 The norm of energy consumption per unit product of overhead conductors of commonly used specifications

The comprehensive energy consumption per unit product of commonly used specifications of ACSR and ACSR shall meet the requirements in Table A.1 and Table A.2.