GB/T 27977-2022Test and calculation methods of electricity efficiency in cement production (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

This document replaces GB/T 27977-2011 "Test and Calculation Method of Electric Energy Efficiency in Cement Production", and is consistent with GB/T 27977-2011 In addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Changed the name and definition of electric energy efficiency test for cement production, changed the comprehensive power consumption per unit product, comprehensive power consumption of raw materials, raw meal Terms and definitions of comprehensive power consumption, fuel comprehensive power consumption, auxiliary production power consumption (see 3.1~3.5 and 3.11, 3.1~ 3.6);

b) The power consumption of raw material pretreatment main engine, raw meal preparation main engine power consumption, fuel preparation main engine power consumption, clinker burning main engine power consumption, cement Terms and definitions of power consumption of main grinding machine and auxiliary production (see 3.6~3.10 and 3.12);

c) Added power quality test method (see 4.3);

d) Increase the efficiency test requirements of main electrical equipment, and define the main ventilator (see 4.4);

e) Added division of production systems (see 4.5.2);

f) Changed the requirements for measuring instruments and testing instruments (see 4.5.4, 4.3.2.5 of the 2011 edition);

g) Added requirements for on-site test conditions (see 4.5.6.1);

h) Changed the test content and requirements of the field test method (see 4.5.6.1~4.5.6.6, 4.3.2.1 of the 2011 edition);

i) Deleted the test records and related formats (see Chapter 5 and Appendix A of the 2011 edition);

j) Added the calculation formula for the power consumption of the process host (see 5.2);

k) Added basic requirements for electrical energy efficiency test reports (see Chapter 6).

1 Scope

This document specifies the electrical energy efficiency test, calculation method and electrical energy efficiency test report for the cement and clinker production process.

This document is applicable to the electric energy efficiency test of cement and clinker production enterprises.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references Only the version corresponding to that date applies to this document. For undated references, the latest edition (including any amendments) applies to this document.

GB 175 General Portland cement

GB/T 2589 General rules for comprehensive energy consumption calculation

GB/T 10178 Field Performance Test of Industrial Ventilators

GB/T 12325 power quality power supply voltage deviation

GB/T 12497 Economical operation of three-phase asynchronous motors

GB/T 14549 Power Quality Harmonics of Public Grid

GB/T 15543 Power Quality Three-phase Voltage Unbalance

GB/T 15945 Power Quality Power System Frequency Deviation

GB/T 16664 Energy-saving monitoring methods for power supply and distribution systems of enterprises

GB 16780 Cement energy consumption limit per unit product

GB 17167 General rules for equipment and management of energy measuring instruments for energy-consuming units

GB 19761 Ventilation fan energy efficiency allowable value and energy efficiency grade

GB/T 21372 Portland cement clinker

GB/T 23331 Energy Management System Requirements and Guidelines for Use

GB/T 26282 Determination method of heat balance of cement rotary kiln

GB/T 33652 Technical Regulations for Energy Consumption Testing of Cement Manufacturing

GB/T 35461 Requirements for equipment and management of energy measuring instruments in cement production enterprises

3 Terms and Definitions

GB/T 2589, GB 16780 and the following terms and definitions apply to this document.