PDF《for Industrial Boilers in China》

1 Status and Analysis on Effects of Energy Efficiency Standards for Industrial Boilers in China Ren LIU a,b , Lili Chen a , Meng LIU a , Qing DING a , Yuejin ZHAO a a China National Institution of Standardization, Beijing, 100191, China b Department of thermal engineering, Tsinghua University, Beijing, 100084, China *Corresponding author'

s E-mail address: liuren@cins.

gov.cn Abstract. Energy conservation and environmental protection is the basic policy of China, and is an important part of ecological civilization construction. The industrial boilers in China are featured by large quantity, wide distribution, high energy consumption and heavy environmental pollution, which are key problems faced by energy conservation and environmental protection in China. Meanwhile, industrial boilers are important equipment for national economy and people'

s daily life, and energy conservation gets through all segments from type selection, purchase, installation and acceptance to fuel management, operation, maintenance and service. China began to implement such national mandatory standards and regulations for industrial boiler as GB24500-2009 The Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades of Industrial Boilers and TSG G002-2010 Supervision Regulation on Energy-Saving Technology for Boilers since 2009, which obviously promote the development of energy conservation of industrial boilers, but there are also some problems with the rapid development of technologies for energy conservation of industrial boilers. In this paper, the implementation of energy efficiency standards for industrial boilers in China and the significance are analyzed based on survey data, and some suggestions are proposed for the energy efficiency standards for industrial boilers. 1. Introduction The lack of energy resources and low energy use rate become more and more prominent with the rapid economic development of China[1] Industrial boiler is a kind of important thermal power equipment, and China is the largest manufacturer and consumer of boiler worldwide, with huge energy conservation and environmental protection potential. As for energy conservation and emission reduction in China, it is the key work to actively implement industrial boiler energy conservation and emission reduction and improve the energy efficiency of industrial boiler, which is beneficial to the mitigation of energy shortage in China and compliance with the requirements for energy structure adjustment. Preparation of industrial boiler-related energy conservation management policies, regulations and standards is the basis for the implementation of energy conservation plan for industrial boiler. 2. Development of energy efficiency laws, regulations and standards for industrial boiler of china During the implementation of the World Bank'

s promotion project GEF High Efficiency Industrial Boiler in China in 1998, nine standards including JB/T 10094-2002 General Specifications Industrial Boilers were prepared and revised after absorbing and applying advanced technologies from foreign countries in consideration of national conditions, industrial features and product levels of China, which accelerates the improvement of quality of industrial boilers in China, narrows the gap between advanced

2 technical levels of foreign countries and plays an active role for the improvement of thermal efficiency of industrial boiler in China, reduction of discharge of air pollutants and promotion of energy conservation and consumption reduction [1,2,3]. In consideration of enormous significance of industrial boiler standards in product performance and energy conservation and emission reduction, National Technical Committee on Energy Fundamentals and Management prepared some standards related to energy conservation management of boiler successively and proposed different levels of requirements on energy conservation and emission reduction from type selection, purchase, installation and acceptance of industrial boiler to fuel management, operation, service and maintenance, e.g. GB/T

3486 Technical Guides for Evaluating the Rationality of Heat Usage in Industrial Enterprise that specifies the technical guides for the reasonable heat usage of enterprises, GB/T

15317 Monitoring and Testing for Energy Conservation of Coal Fired Industrial Boilers that specifies the monitoring items and methods as well as assessment indexes for the energy use of coal fired industrial boilers, GB/T

17954 Economical Operation of Industrial Boilers, GB/T

19065 Economical Operation of Electric Boiler System and GB/T

18292 Economical Operation of Domestic Boilers that specify the requirements, management rules, classification, technical indexes, assessment, etc. for the economical operation of industrial boilers (electric boilers and system, domestic boilers) respectively. In 2007, China National Institute of Standardization and Shanghai Industrial Boiler Research Institute organized experts from boiler industrial to prepare and revise such national standards as GB24500 The Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades of Industrial Boilers on the basis of extensive researches, which were implemented since September 1, 2010. As the technical support for the implementation of the Energy Conservation Law of the People'

s Republic of China, this standard is prepared in full consideration of the macro energy conservation policies and actual conditions of China, as well as the current situation and technical development trends of the boiler industry, with some provisions (allowable values of energy efficiency) adopted as mandatory national standards. In this standard, energy efficiency of industrial boilers is classified into

3 grades with Grade

1 as the highest grade, and the minimum requirements for the thermal efficiency values of all types of industrial boilers under rated operating conditions are specified. It is the standard for evaluating the energy efficiency of new industrial boilers, and its allowable values of energy efficiency are introduced directly in TSG G0002-2012 Supervision Regulation on Energy-Saving Technology for Boilers as the assessment indexes for industrial boiler market access. The boiler management authority of China attaches great importance to the establishment of laws and standard system for boilers. Regulations on Safety Supervision of Special Equipment revised by the State Council in

2009 specifies energy conservation-related requirements for the design, manufacture, installation, use, repair, renovation, inspection and other links of special equipment with high energy consumption including industrial boiler [4,5] . TSG G0002 Supervision Regulation on Energy-Saving Technology for Boiler, TSG G0003 Energy Efficiency Test Method for Industrial Boiler and relevant technical regulations issued in

2010 further perfect the laws and regulations for energy conservation of boilers. In 2015, TSG G1001 Boiler Design Documents Appraisal Administration Regulation was revised, with relevant requirements for appraisal of boiler design on the basis that effective boiler safety design approval requirements of the original standard are reserved. The design document appraisal is to verify whether the safety and economic performances of boiler design conform to such technical specifications and relevant standards as Boiler Safety Technical Supervision Administration Regulation and Supervision Regulation on Energy-Saving Technology for Boilers. In 2012, NB/T 47035-201 Energy Performance Assessment for Industrial Boilers System was prepared under the organization of China Standardization Committee on Boilers and Pressure Vessels, which fully considers the ideas and thoughts for appraisal as stated in ASME EA-1-2008 Energy Assessment for Process Heating Systems, proposes contents and requirements for appraisal of industrial boilers in China, presents the frame for evaluation of energy conversion efficiency of industrial boiler system and components of energy efficiency evaluation of industrial boiler system, and forms the standard system for financial and technical evaluation of industrial boiler system together with other standards for energy audit, heat engineering test of boiler, fans, economical operation of water pumps,

3 etc. The evaluation involves acquisition and analysis of information about the system design, operation, energy use and operation data of the industrial boiler system, determination of energy efficiency status of the system, identification of energy conservation opportunities, optimization of energy use and performance, as well as suggestions for improvement of energy use, etc. In 2015, the Integrated Improvement of Energy Conservation and Environmental Protection of Coal-fired Boiler was listed as one of important measures to accelerate the air pollution prevention and speed up the development of energy conservation and environmental protection industry. The establishment and implementation of energy conservation regulation and law system for special equipment with high energy consumption, with the energy conservation technical specification and energy efficiency standards for industrial boilers as the basis, will surely promote the comprehensive improvement of levels in design, manufacture, operation and management of industrial boilers, and proposes new and higher requirements for the energy efficiency standards for industrial boilers in China. Table

1 Standards Regarding Energy Conservation of Boilers in China S/N Standard Number Standard Name

1 GB24500-2009 The Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades of Industrial Boilers

2 GB19761-2009 Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Ventilating Fan

3 GB18613-2012 Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Small and Medium Three-phase Synchronous Motors

4 GB/T 15317-2009 Monitoring and Testing for Energy Conservation of Coal Fired Industrial Boilers

5 GB/T 17954-2007 Economical Operation of Industrial Boilers

6 GB/T 19065-2011 Economical Operation of Electric Boiler System

7 GB/T 18292-2009 Economical Operation of Domestic Boilers

8 NB/T 47035-2013 Energy Performance Assessment for Industrial Boilers System 3. Analysis on implementation of energy efficiency standards for industrial boiler in china With the in-depth implementation of the Reform and Opening-up, China gradually strengthens the policy support for energy conservation and environmental protection. GB24500-2009 The Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades of Industrial Boilers and TSG G0002-2010 Supervision Regulation on Energy-Saving Technology for Boilers were issued and implemented successively, which standardize a series of energy serving supervision mechanisms for boilers in terms of boiler design document energy conservation assessment, energy efficiency tests for approved boiler products, regular energy efficiency inspections of industrial boilers in use, and improve the energy efficiency levels of industrial boilers in China. Thus, the industrial boiler design capacity and product quality of China are significantly improved, and the requirements on energy conservation and emission reduction of industrial boilers are satisfied. According to the statistics of the General Administration of Quality Supervision, Inspection and Quarantine of the People'

s Republic of China (see Table 2), totally 526,300 sets of boilers are in use in 2001, up to 98.9% of which are industrial boilers, with the annual capacity of 83,000 t/h. With the acceleration of industrialization and urbanization, the energy and heating demands of human beings increase dramatically, so does their demands for industrial boilers. By the end of 2014, the ........