LY/T 3158-2019Comprehensive energy consumption of wood-pulp production (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard was proposed by the National Energy Foundation and Management Standardization Technical Committee of the Forestry Energy Management Sub-Technical Committee (SAC/TC20/SC7) and centralize.

This standard was drafted. Heilongjiang Forest Engineering and Environment Research Institute, Heilongjiang Paper Mill, Yunnan Yunjing Forest Paper Co., Ltd., Shandong Sun Paper Co., Ltd., Daxinganling Pulp and Paper Co., Ltd., Yueyang Forest Paper Co., Ltd., Guangxi Jingui Pulp and Paper Co., Ltd.

Division.

1 Scope

This standard defines the terms and definitions of the comprehensive energy consumption of wood pulp production, and specifies the statistical scope of the comprehensive energy consumption classification and energy consumption per unit of wood pulp production Environmental protection, energy consumption calculation principles and methods, energy management and measures.

This standard applies to the calculation and index assessment of the comprehensive energy consumption of wood pulp production enterprises.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document.

GB/T 2589 General Calculation Rules for Comprehensive Energy Consumption GB/T 4687 paper, paperboard, pulp and related terms GB 17167 General Rules for the Provision and Management of Energy Measuring Instruments in Energy-Used Units GB 29454 Equipment and Management Requirements for Energy Measuring Instruments in Pulp and Paper Enterprises

3 Terms and definitions

The terms and definitions defined in GB/T 4687 and the following apply to this document.

Comprehensive energy consumption of wood-pulp production the actual amount of various energy sources actually consumed by wood pulp manufacturers during the statistical reporting period is discounted according to the prescribed calculation method and measurement unit Sum of standard coal.

Comprehensive energy consumption for unit output of wood-pulp production During the statistical reporting period, the ratio of the comprehensive energy consumption of wood pulp production to the output of qualified products in the same period was converted into tons of air-dried pulp (Adt).

Direct production system Refers to preparation, pulping, papermaking, packaging of finished products, etc.

Indirect production system Including auxiliary production systems and auxiliary production systems.

Auxiliary production system Processes, facilities, and equipment configured for direct production systems. Including power, electromechanical, mechanical repair, water supply, gas supply, heating, refrigeration and raw material sites in the plant, as well as safety and environmental protection devices. Auxiliary production systems do not include lime kilns.

Subsidiary production system the production command system configured for the direct production system and the auxiliary production system and the departments and units in the factory that serve production. Including office Room operation room, central control room, rest room, changing room, inspection room, etc.

4 Classification of comprehensive energy consumption per unit of output

4.1 Classification of comprehensive energy consumption per unit output of chemical wood pulp production the comprehensive energy consumption classification of unit output of chemical wood pulp production is shown in Table 1.

Table 1 Table 1 Comprehensive energy consumption classification of unit output of chemical wood pulp production

Units are kilograms of standard coal per ton of air-dried pulp Energy class Bleached chemical wood pulp a Commercial pulp commercial pulp First level q<=120 q<=240 q<=80 q<=200 Class 120 < q<=160 240 < q<=280 80 < q<=120.200 < q<= 240 Three levels 160 < q<=200 280 < q<=320 120 < q<=160 240 < q<=280 Note. Coniferous pulp increased by 8%.

Includes alkali recovery system.

4.2 Classification of comprehensive energy consumption per unit output of chemical mechanical wood pulp production the comprehensive energy consumption classification of unit output of chemical mechanical wood pulp production is shown in Table 2.

Table 2 Classification of comprehensive energy consumption per unit output of chemical mechanical wood pulp production

Units are kilograms of standard coal per ton of air-dried pulp Energy grading grade Energy grading (self-use pulp) First class q<=160 Level 160 < q<=200 Three levels.200 < q<=240 Note. Coniferous pulp increased by 8%.

5 Statistical scope of energy consumption

5.1.1 The energy consumption of wood pulp production should be within the statistical period, the production system is in a normal operating state, the production trial operation, the entire system is down for maintenance, etc.

Energy consumption under normal operation is not in the statistical range.

5.1.2 The statistical scope of energy consumption shall include the primary energy, secondary energy consumed by the wood pulp direct production system, and the energy-consuming working medium consumed by production.

Of energy. The energy consumption and energy loss of auxiliary production systems and auxiliary production systems shall also be included in the energy consumption per unit of product.

5.1.3 The statistics and calculation of energy consumption shall include all production links of the production system, without duplication and leakage, and the enterprise directly recycles the production system.

The waste heat belongs to saving and recycling, which should be deducted according to the actual energy recovered. When the enterprise has an alkali recovery system, the alkali recovery device uses energy it should be included in the energy consumption, and the recovered energy (heat, electricity) should be converted according to the energy equivalent value and deducted from the energy consumption of the production system to avoid double counting.

6 Calculation principles and methods for energy consumption of wood pulp production

7 Energy management and measures

7.1 The enterprise shall be equipped with energy measuring instruments according to the requirements of GB 17167 and GB 29454, and establish an energy measurement management system.

7.2 The enterprise shall regularly evaluate the energy consumption of the direct production system in production, and decompose and implement the assessment indicators into various basic units.

To establish a responsibility system for energy management.

7.3 Promote high-efficiency and energy-saving new technologies, new processes and new equipment, and promote the "three wastes" comprehensive utilization technology.

7.4 Vigorously promote energy-saving combustion technology and waste heat utilization technology to maximize thermal efficiency.

Appendix A

(Informative appendix) Commonly used energy and energy consumption working medium

Table A.1 Standard coal coefficient for common energy and energy-consuming working medium

Energy name average low calorific value converted to standard coal coefficient Electricity (equivalent value) 3 600 kJ/(kW · h) [860 kcal/(kW · h)] 0.122 9 kgce/(kW · h) Gasoline 43 070 kJ/kg (10 300 kcal/kg) 1.471 4 kgce/kg Diesel 42 652 kJ/kg (10.200kcal/kg) 1.457 1 kgce/kg Raw coal 20 908 kJ/kg (500 0 kcal/kg) 0.714 3 kgce/kg Liquefied petroleum gas 50 179 kJ/kg (12 000 kcal/kg) 1.714 3kgce/kg Oil field natural gas 38 931 kJ/m3 (9 310 kcal/m3) 1.330 0 tce/m3 Fresh water 2.51 MJ/t (600 kcal/t) 0.085 7 kgce/t Soft water 14.23 MJ/t (3 400 kcal/t) 0.486 0 kgce/t Compressed air 1.17 MJ/m3 (280 kcal/m3) 0.0400 kgce/m3

Note 1. Calculated as 29 308 KJ (7 000 kcal) per kilogram of standard coal.

Note 2. The steam conversion standard coal coefficient is calculated by the calorific value.