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GB/T 21145-2023: Mechanical transport refrigeration units
Status: Valid GB/T 21145: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21145-2023 | English | 519 |
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Mechanical transport refrigeration units
| Valid |
GB/T 21145-2023
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| GB/T 21145-2007 | English | 719 |
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Mechanical transport refrigeration units
| Obsolete |
GB/T 21145-2007
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PDF similar to GB/T 21145-2023
Basic data | Standard ID | GB/T 21145-2023 (GB/T21145-2023) | | Description (Translated English) | Mechanical transport refrigeration units | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J73 | | Classification of International Standard | 27.200 | | Word Count Estimation | 26,222 | | Date of Issue | 2023-03-17 | | Date of Implementation | 2023-10-01 | | Older Standard (superseded by this standard) | GB/T 21145-2007 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 21145-2023: Mechanical transport refrigeration units---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 27.200
CCSJ73
National Standards of People's Republic of China
Replacing GB/T 21145-2007
Transport Refrigeration Units
Released on 2023-03-17
2023-10-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Types and basic parameters 2
5 Technical Requirements 4
6 Test method 6
7 Inspection rules 9
8 Labeling, packaging, transportation and storage 10
Appendix A (Normative) Refrigerating Capacity Test Method 12
Appendix B (Normative) Vibration Test Method 21
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 21145-2007 "Refrigeration Units for Transport". Compared with GB/T 21145-2007, except for structural adjustment and
In addition to editorial changes, the main technical changes are as follows.
a) Increase the scope of application (see Chapter 1);
b) The definitions of "cooling capacity", "compressor driving power", "auxiliary power consumption" and "total input power" have been added (see 3.3~3.6);
c) Changed the independent and non-independent classification (see 4.1.4, 4.4 of the.2007 edition);
d) The classification methods of refrigerated type and refrigerated type are added (see 4.1.6);
e) Increase the basic parameters and model of the unit (see 4.2, 4.3);
f) Changed the working condition parameter conditions of the refrigeration unit for transportation, and gave the nominal working conditions of the unit according to the applicable temperature range of the unit.
Environmental conditions (see 4.2.3, 6.1.2 of the.2007 edition);
g) The technical requirements and test methods for start-up operation and maximum load continuous operation have been added (see 5.6.6, 5.6.7, 6.3.6 and 6.3.7);
h) Increase the performance coefficient requirements of electric drive units (see 5.6.11);
i) The electric strength test of the unit has been changed (see 6.3.11, 6.3.8.1 of the.2007 edition);
j) Added the requirements for the use of flammable refrigerants (see 8.1);
k) Changed the cooling capacity test method for single-temperature zone units, and added the cooling capacity test method for multi-temperature zone units (see Appendix A,.2007
Appendix A of the annual edition);
l) When the unit conducts related tests, the reading tolerance requirements of the parameters of the test conditions are changed (see Table A.1 of Appendix A, the.2007 edition
Table 3 of 6.1.3);
m) The vibration test method has been changed (see Appendix B, Appendix B of the.2007 edition).
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 is proposed by China Machinery Industry Federation.
This document is under the jurisdiction of the National Refrigeration and Air Conditioning Equipment Standardization Technical Committee (SAC/TC238).
This document is drafted by. Zhengzhou Kaixue Transportation Refrigeration Equipment Co., Ltd., Hefei General Machinery Research Institute Co., Ltd., Trane Air Conditioning System
(China) Co., Ltd., Shanghai Carrier Transportation Air Conditioning Equipment Co., Ltd., Zhuhai Gree Electric Appliances Co., Ltd., Danfoss (Tianjin) Co., Ltd.
Division, China National Institute of Standardization, Tsinghua University, Hefei General Electromechanical Products Testing Institute Co., Ltd., Hefei General Environmental Control Technology Co., Ltd.
company.
The main drafters of this document. Wu Junfeng, Yuan Rongyi, Guo Junwei, Zan Shichao, Zhang Xiuping, Wu Xiaojun, Tian Jian, Lin Aige, An Jingai, Ma Xiaolei,
Shi Wenxing, Zhou Junhai, Feng Renjun, Liu Junya, Xie Hongxi, Song Meifeng, Shang Yunheng, Cao Chen, Ge Tan, Liang Ping, Yuan Xudong, Dong Anle, Lu Liangyu.
This document was first published in.2007, and this is the first revision.
Transport Refrigeration Units
1 Scope
This document specifies the types, basic parameters, technical requirements, test methods, and inspection specifications of refrigeration units for transportation (hereinafter referred to as "units").
Rules, signs, packaging, transportation and storage, etc.
This document applies to vehicles, trains, engine-driven or electric (electric motor) driven transport refrigeration units.
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 191 Packaging, storage and transportation icon marks
GB/T 1771 Determination of neutral salt spray resistance of paints and varnishes
GB 2894-2008 Safety Signs and Guidelines for Their Use
GB 4706.1-2005 Safety of Household and Similar Electrical Appliances Part 1.General Requirements
GB 4706.32-2012 Special requirements for the safety of heat pumps, air conditioners and dehumidifiers for household and similar electrical appliances
GB 5226.1 Safety of machinery and electrical machinery and electrical equipment - Part 1.General technical requirements
GB 5296.1 Instructions for use of consumer products - Part 1.General
GB/T 5773 Performance test method for positive displacement refrigerant compressors
GB/T 6388 Transport packaging receipt and delivery marks
GB/T 9237 Refrigeration system and heat pump safety and environmental requirements
GB/T 13306 Signage
GB/T 20651.1 Safety of reciprocating internal combustion engines Part 1.Compression ignition engines
JB/T 4330-1999 Determination of Noise of Refrigeration and Air Conditioning Equipment
JB/T 7249 Terminology for Refrigeration and Air Conditioning Equipment
3 Terms and Definitions
The following terms and definitions defined in JB/T 7249 apply to this document.
3.1
A mechanical refrigeration system for temperature control of goods in transit.
Note. It mainly includes compressors, power units, air-cooled condenser components, evaporator components, refrigeration pipelines, electrical and control systems, etc.
3.2
Calorimeter calorimeter
Enclosed by walls with better thermal insulation performance, the refrigeration equipment is determined by measuring the heat required to balance the internal temperature and the external ambient temperature.
Refrigeration capacity test device.
Note. There are usually equipment such as heating, ventilation and temperature measurement inside.
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