GB/T 37504-2019 English PDF (GBT37504-2019)

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GB/T 37504-2019: Guides for energy efficiency assessment of continuous casting process
GB/T 37504-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77-010
H 04
Guides for energy efficiency assessment of
continuous casting process
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: MAY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Basic principles ... 5 
5 Assessment steps ... 5 
6 Boundary and energy statistics scope ... 6 
7 Baseline energy consumption ... 6 
8 Actual energy consumption ... 9 
9 Energy efficiency index ... 11 
10 Energy efficiency analysis ... 11 
11 Energy efficiency optimization measures ... 12 
Annex A (informative) Boundary division of continuous casting process ... 14 
Annex B (informative) Recommended values for the standard coal coefficient
of various energy and energy-consuming working fluid ... 15 
Bibliography ... 16 
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by China Iron and Steel Industry Association.
This Standard shall be under the jurisdiction of National Technical Committee
on Steels of Standardization Administration of China (SAC/TC 183).
The drafting organizations of this Standard: MCC South Engineering
Technology Co., Ltd., Beijing Tianyuehua Metallurgical Equipment Co., Ltd.,
Metallurgical Industry Information Standards Institute, Guangzhou Baiyun
Hydraulic Machinery Factory Co., Ltd., Hunan Kemeda Electric Co., Ltd., MCC
South Continuous Casting Technology Engineering Co., Ltd., Hongxing Iron
and Steel Co., Ltd. of Gansu Jiugang Group, Hebei Jinxi Iron and Steel Group
Co., Ltd.
Main drafters of this Standard: Pan Guoyou, Xu Hailun, Li Shaoguo, Wang
Jiangwei, Zhou Ganshui, Li Zhenli, Shen Changhua, Xu Yongbin, Qiu Jinhui,
Chen Hongzhi, Han Zhanguang, Yang Bin, Luo Anning, Hou Yaxiong, Gao
Peng, Shen Yanxiong, Zhao Yichen, Zhao Jingjing.
Guides for energy efficiency assessment of
continuous casting process
1 Scope
This Standard specifies the terms and definitions, basic principles, assessment
steps, boundary and energy statistics scope, baseline energy consumption,
actual energy consumption, energy efficiency index, energy efficiency analysis
and energy efficiency optimization measures for energy efficiency assessment
of continuous casting process.
This Standard is applicable to energy efficiency assessment and energy saving
potential analysis of continuous casting process in iron and steel enterprises.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB 17167, Guides for providing and managing of the measuring instruments
of energy in enterprise
GB/T 21368, Specification for equipping and managing of measuring
instrument of energy in the iron and steel industry
GB/T 23331, Management system for energy - Requirements
GB/T 28924, Guides for calculating energy efficiency index of an iron and
steel enterprise
YB/T 4662, Guides for energy efficiency assessment of iron and steel
enterprise
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
23331, GB/T 28924, YB/T 4662 apply.
4 Basic principles
The energy efficiency assessment of continuous casting process shall follow
the basic principles:
a) Principle of legal compliance: the assessment object shall comply with
national laws and regulations, meet the requirements of the steel industry
policy, and comply with relevant mandatory standards for energy
conservation and emission reduction;
b) Principle of efficient energy use: promote efficient use and rational
allocation of energy; encourage enterprises to adopt advanced energy-
saving technologies or management measures; improve inefficient energy
production;
c) Principle of highlight: focus on examination of key processes and
equipment with high energy consumption and great energy saving
potential; focus on analysis on main factors of affecting energy efficiency;
d) Principle of scientific rationality: eliminate the influence of incomparable
factors within the scope permitted by conditions to ensure the
comparability of assessment indicators and the rationality of assessment
analysis.
5 Assessment steps
The efficiency assessment of continuous casting process includes but is not
limited to the following steps:
a) Determine boundary and energy consumption statistics range;
b) Collect field data of evaluation object; calculate actual energy
consumption;
c) Calculate a modified baseline energy consumption based on the objective
situation on site;
d) Calculate the energy efficiency index of the continuous casting process
and evaluate the energy efficiency level;
e) Analyze energy use level, energy metering equipment configuration, and
energy saving potential;
f) Propose energy efficiency optimization measures.
6 Boundary and energy statistics scope
6.1 Process boundary division
The boundary of the continuous casting process starts from the input of molten
steel into the pouring position and the input of energy and energy-consuming
working fluid. End with qualified billet shipped out of the continuous casting
workshop.
See Annex A for boundary division of continuous casting process.
6.2 Energy consumption statistics range
The energy consumption statistics range of continuous casting process is as
follows:
a) Continuous casting production, including continuous casting machine,
water treatment system, refractory product baking system and dust
removal system;
b) Include machine repair, inspection, testing, metering, transportation,
production management and scheduling systems, heating or cooling,
lighting, storage and other auxiliary production systems;
c) Include the amount of energy lost at the interface of the continuous casting
process.
The above statistical scope of energy consumption does not include the energy
consumption of facilities (such as canteens, lounges) that are not related to
production and are used for living purposes.
7 Baseline energy consumption
7.1 Baseline conditions
7.1.1 Baseline conditions are a number of measurable factors that have a large
impact on baseline energy consumption, including objective and subjective
factors.
7.1.2 Objective factors are the factors that are affected by inherent conditions
outside the process boundary and cannot be controlled within the process,
mainly referring to raw material conditions, product conditions, geographical
environment, climatic temperature.
7.1.3 Subjective factors are the factors that are related to the enterprise's own
management level, technical equipment level, and operation level, that can be
improved through optimization of technical equipment and management level.
7.1.4 The selection of baseline conditions shall meet the principles of being
advanced, mature and economic. The value usually represents the advanced
level of the industry.
7.2 Determination of baseline energy consumption
The determination of the baseline energy consumption includes but is not
limited to the following points:
a) The determinat...