GB/T 21736-2025 English PDFUS$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 21736-2025: Technical specifications of energy-saving combustion equipment for heat treatment Status: Valid GB/T 21736: Historical versions
Basic dataStandard ID: GB/T 21736-2025 (GB/T21736-2025)Description (Translated English): Technical specifications of energy-saving combustion equipment for heat treatment Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J36 Classification of International Standard: 25.200 Word Count Estimation: 22,242 Date of Issue: 2025-08-29 Date of Implementation: 2026-03-01 Older Standard (superseded by this standard): GB/T 21736-2008 Issuing agency(ies): State Administration for Market Regulation, National Standardization Administration GB/T 21736-2025: Technical specifications of energy-saving combustion equipment for heat treatment---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21736-2025 ICS 25.200 CCSJ36 National Standard of the People's Republic of China Replaces GB/T 21736-2008 Technical requirements for heat treatment combustion heating energy-saving equipment Released on August 29, 2025 Implementation on March 1, 2026 State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Composition and requirements of combustion heating equipment 2 5 Energy-saving technical requirements 3 6 Reliability Requirements 8 7 Safety, health and environmental protection requirements 8 Appendix A (Informative) Gas Heating Equipment Structure and Related Accessories Characteristics 11 Preface 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 21736-2008 "Technical conditions for energy-saving heat treatment combustion heating equipment" and is consistent with GB/T 21736-2008. In addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The scope has been changed (see Chapter 1, Chapter 1 of the.2008 edition); b) The terms "primary energy", "secondary energy", "greenhouse gas", "heat utilization coefficient of fuel furnace", "unit heat consumption index", and "exhaust gas" have been deleted. and its definitions (see 3.1, 3.2, 3.3, 3.5, 3.7, 3.8 of the.2008 edition), adding the terms "combustion heating equipment", "burner", "combustion Thermal efficiency of the system, "air coefficient" and their definitions (see 3.2, 3.4, 3.5, 3.6), change the term "calorific value" to "calorific value" (see 3.1, 3.4 of the.2008 edition), change “thermal efficiency of furnace” to “thermal efficiency of combustion heating equipment” (see 3.3, 3.6 of the.2008 edition); c) Changed "Fuel Selection" and "Heat Treatment Furnace Selection" to "Composition and Requirements of Combustion and Heating Equipment", and added "Combustion and Heating Equipment" Design and manufacturing requirements (see Chapter 4, 4.3, Chapter 4, Chapter 5 of the.2008 edition), deleted the fuel selection, furnace bottom strength and Unit heat consumption of workpieces (see 4.1 to 4.4, 5.1, and 5.2 of the.2008 edition); d) Change "Necessary conditions for energy-saving heat treatment furnaces" to "Energy-saving technical requirements" (see Chapter 5, Chapter 6 of the.2008 edition), based on According to different furnace types, "unit product energy consumption" (see 5.2), "temperature uniformity and system accuracy" (see 5.4), and "surface temperature rise" are added. (see 5.5), "empty furnace heating time" (see 5.6) and "empty furnace power loss ratio" (see 5.7); e) The thermal efficiency of combustion heating equipment has been modified (see 5.3, 6.1 of the.2008 edition); f) The relationship between air preheating temperature and fuel saving rate has been modified (see Table 1, Table 1 of the.2008 edition); g) Deleted "energy utilization rate reaches more than 80%" and waste heat utilization measures (see 6.6 and 6.7 of the.2008 edition); h) Increased equipment reliability requirements (see Chapter 6); i) Added requirements for equipment safety and alarm records (see 7.1, 7.3); j) The requirements for environmental protection have been changed (see 7.2, 7.1 and 7.2 of the.2008 edition); k) Change "Gas Heating Equipment Structure and Related Accessories Characteristics" from a normative appendix to an informative appendix (see Appendix A,.2008) Appendix A of the.2011 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Technical Committee for Standardization of Heat Treatment (SAC/TC75). This document was drafted by. Jiangsu Fengdong Thermal Technology Co., Ltd., China Machinery Engineering Institute Group Beijing Electromechanical Research Institute Co., Ltd., Jiangsu Jin Color Industrial Furnace Co., Ltd., Shandong Yiran Environmental Protection Technology Co., Ltd., AVIC Great Wall Measurement and Testing (Tianjin) Co., Ltd., Shuanghuan Transmission (Jiaxing Xing) Precision Manufacturing Co., Ltd., CCCC Shanghai Waterway Survey and Design Institute Co., Ltd., Baosteel Engineering Technology Group Co., Ltd., Northern Engineering Design and Research Institute Co., Ltd., Liyang Yongheng Heat Treatment Co., Ltd., Jiangsu Tengtian Industrial Furnace Co., Ltd., Beijing Jingcheng Phoenix Industrial Furnace Co., Ltd. Cheng Technology Co., Ltd., Zhejiang Chengben Bearing Roller Co., Ltd., Hubei MCC Kiln Co., Ltd., Baowu Group Magang Rail Transit Materials Technology Co., Ltd. Co., Ltd., Suzhou New Changguang Thermal Energy Technology Co., Ltd., Zhejiang Tianma Bearing Group Co., Ltd., Anji Shen'an Machinery Manufacturing Co., Ltd., Anderson Thermal Technology (Suzhou) Co., Ltd., Chongqing Saidi Thermal Engineering and Environmental Protection Engineering Technology Co., Ltd., Suzhou Boneng Furnace Technology Co., Ltd. Ningbo Sacson Industrial Technology Co., Ltd., Hangzhou Guoneng Steam Turbine Engineering Co., Ltd., Jiangsu Fengdong Heat Treatment and Surface Modification Engineering Technology Research Co., Ltd., MCC Southern (Wuhan) Thermal Engineering Co., Ltd. The main drafters of this document are. Han Boqun, Xu Yueming, Chen Weidong, Zhao Jiabo, Lü Guoyi, Zhang Weiquan, Xu Lianjun, Li Liqiang, Zhao Pengju, Wu Hongfa, Zhang Ruizhi, Wu Yonghong, Xu Yongsong, Fan Lijun, Lu Song, Xu Jiangyun, Ma Weiliang, Wang Yike, Dai Senwei, Cheng Qibo, Zuo Jianzhong, Zheng Wanglin, Feng Bin, Shen Shengjie, Zhang Xiangxiang, Zheng Haiwei, Zhang Zhen, Han Xuejun, Wang Hongyu, Shi Yousen, Zhang Wenliang, Li Qiao, Zhang Ziteng, and Wang Ting. This document was first published in.2008 and this is the first revision. Technical requirements for heat treatment combustion heating energy-saving equipment1 ScopeThis document specifies the composition and requirements of heat treatment combustion heating equipment, energy-saving technical requirements, reliability requirements, safety, health and environmental protection Require. This document applies to the design, manufacture and use of combustion heating energy-saving equipment that uses natural gas as the main heat source.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB 2894 Safety colors and safety signs GB/T 7232 Terminology for Metal Heat Treatment GB/T 9452 Determination of effective heating area of heat treatment furnace GB/T 13324 Terminology of heat treatment equipment GB 15735 Safety and hygiene requirements for metal heat treatment production processes GB 17820 Natural Gas GB/T 19944 Calculation and determination methods for fuel consumption in heat treatment production GB/T 27946 Limits of Hazardous Substances in the Air of Heat Treatment Workplaces GB/T 30822 Technical requirements for heat treatment environmental protection GB/T 30824 Test method for temperature uniformity of gas-fired heat treatment furnaces GB/T 30825 Heat treatment temperature measurement GB/T 32151.19 Greenhouse gas emissions accounting and reporting requirements Part 19.Heat treatment enterprises GB/T 32541 Heat treatment quality control system GB/T 38819 Technical requirements and evaluation of green heat treatment GB 50116 Design Specification for Automatic Fire Alarm Systems3 Terms and DefinitionsThe terms and definitions defined in GB/T 7232, GB/T 13324 and GB/T 17820 and the following apply to this document. 3.1 Calorific value The amount of heat released when a unit volume (or mass) of fuel is completely burned. Note 1.The calorific value is divided into high calorific value and low calorific value. Among them. high calorific value is the sum of the heat of fuel combustion and the heat of condensation of water vapor (total heat of combustion). The low calorific value is the difference between the total heat of combustion and the heat of condensation (only the combustion value of the fuel). The low calorific value is 10% lower than the high calorific value. about. Note 2.The unit of calorific value of gas fuel is kilojoule per standard cubic meter (kJ/Nm3). ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 21736-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 21736-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 21736-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 21736-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 21736-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21736-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
