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NB/T 11141-2023 English PDF

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NB/T 11141-2023: Nitrogen cooling unit used in coal mine
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Basic data

Standard ID NB/T 11141-2023 (NB/T11141-2023)
Description (Translated English) Nitrogen cooling unit used in coal mine
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard D98
Classification of International Standard 73.100
Word Count Estimation 13,138
Date of Issue 2023-02-06
Date of Implementation 2023-08-06
Issuing agency(ies) National Energy Administration

NB/T 11141-2023: Nitrogen cooling unit used in coal mine

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 73:100 CCSD98 People's Republic of China Energy Industry Standards Nitrogen cooling device for coal mine Released on 2023-02-06 2023-08-06 Implementation Released by the National Energy Administration

table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Model, classification and composition 2 5 Technical requirements 3 6 Test method 5 7 Inspection rules 6 8 Labeling, packaging, transportation and storage 7

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: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document was proposed by the China Coal Industry Association: This document is under the jurisdiction of the Coal Mine Safety Standardization Technical Committee of the Coal Industry: This document was drafted by: Beijing Changshun Anda Measurement and Control Technology Co:, Ltd:, China Coal Science and Industry Group Shenyang Research Institute Co:, Ltd:, Fuxin Jinhao Air Compressor Co:, Ltd:, Anbiao National Mining Product Safety Mark Center Co:, Ltd:, Fushun China Coal Science and Engineering Testing Center Co:, Ltd: The main drafters of this document: Hu Qingchuan, Fu Jianzheng, Zhang Hongkui, Zhang Qiulin, Pan Yanan, Wu Zhaohong, Liu Yajun, Li Zhe, Liu Huanbao, Sun Xiaoguang, Bai Junfu: Nitrogen cooling device for coal mine

1 Scope

This document specifies the model, classification, composition, technical requirements, test methods, Inspection rules, marking, packaging, transportation and storage: This document applies to nitrogen cooling devices for coal mines:

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 For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 150:1 Pressure Vessels Part 1: General Requirements GB/T 150:2 Pressure Vessels Part 2: Materials GB/T 150:3 Pressure Vessels Part 3: Design GB/T 150:4 Pressure Vessels Part 4: Manufacture, Inspection and Acceptance GB/T 151 heat exchanger GB/T 191 Packaging, storage and transportation icon marks GB/T 3836:1 Explosive atmospheres Part 1: General requirements for equipment GB/T 3836:2 Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d" GB/T 3836:3 Explosive atmospheres Part 3: Equipment protected by increased safety type "e" GB/T 3836:4 Explosive atmospheres Part 4: Equipment protected by intrinsic safety type "i" GB/T 3836:5 Explosive atmospheres Part 5: Equipment protected by positive pressure enclosure "p" GB/T 9237-2017 Safety and environmental requirements for refrigeration systems and heat pumps GB/T 9969 General Rules for Instructions for Use of Industrial Products GB/T 10079 Piston single-stage refrigerant compressor (set) GB/T 10111 Generation of Random Numbers and Its Application in Product Quality Sampling Inspection GB/T 13306 Signage GB/T 13813 Friction spark safety test method and judgment rules for metal materials used in coal mines GB/T 19410-2008 Screw refrigeration compressors GB/T 21363-2018 Volumetric refrigeration compression condensing unit AQ1043 Mining product safety sign identification JB/T 4330-1999 Determination of Noise of Refrigeration and Air Conditioning Equipment JB/T 7249-1994 Refrigeration Equipment Terminology MT/T 113 General test methods and judgment rules for flame retardant and antistatic polymer products used in underground coal mines MT818 (all parts) coal mine cables TSG21-2016 Safety Technical Supervision Regulations for Stationary Pressure Vessels

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