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GB/T 17049-2024: All-glass evacuated solar collector tubes
Status: Valid GB/T 17049: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 17049-2024 | English | 299 |
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All-glass evacuated solar collector tubes
| Valid |
GB/T 17049-2024
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| GB/T 17049-2005 | English | 839 |
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All-glass evacuated solar collector tubes
| Obsolete |
GB/T 17049-2005
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| GB/T 17049-1997 | English | 599 |
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All-glass evacuated solar collector tubes
| Obsolete |
GB/T 17049-1997
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PDF similar to GB/T 17049-2024
Basic data | Standard ID | GB/T 17049-2024 (GB/T17049-2024) | | Description (Translated English) | All-glass evacuated solar collector tubes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F12 | | Classification of International Standard | 27.160 | | Word Count Estimation | 14,169 | | Date of Issue | 2024-03-15 | | Date of Implementation | 2024-10-01 | | Older Standard (superseded by this standard) | GB/T 17049-2005 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 17049-2024: All-glass evacuated solar collector tubes---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 27.160
CCSF12
National Standards of People's Republic of China
Replace GB/T 17049-2005
All-glass vacuum solar collector tube
Released on 2024-03-15
2024-10-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Structure and naming 2
4.1 Structure 2
4.2 Naming 3
5 Technical Requirements 4
5.1 Materials 4
5.2 Air drying performance parameters 4
5.3 Sun exposure 4
5.4 Average heat loss coefficient 4
5.5 Vacuum performance 4
5.6 Thermal shock resistance 5
5.7 Pressure resistance 5
5.8 Mechanical shock resistance 5
5.9 Appearance and size 5
6 Test methods 5
6.1 Material inspection 5
6.2 Determination of air drying performance parameters
6.3 Determination of solar radiation in the sun 7
6.4 Determination of average heat loss coefficient 7
6.5 Vacuum performance test 9
6.6 Thermal shock resistance test 9
6.7 Pressure resistance test 9
6.8 Mechanical shock resistance test 9
6.9 Appearance and Dimension Inspection 9
7 Inspection Rules 10
7.1 Inspection category 10
7.2 Factory Inspection 10
7.3 Type inspection 10
8 Marking, packaging, transportation and storage 11
8.1 Sign 11
8.2 Packaging 11
8.3 Transportation11
8.4 Storage 11
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 17049-2005 "All-glass vacuum solar collector tube". Compared with GB/T 17049-2005, except for the structural adjustment
In addition to the integration and editorial changes, the main technical changes are as follows.
a) The introduction to Chapter 3 has been changed (see Chapter 3, Chapter 3 of the.2005 edition);
b) Deleted the coating classification in the commonly used solar selective absorption coating nomenclature (see 4.2.2 and Appendix D of the.2005 edition);
c) Added reference standards for cover glass tube wall thickness requirements and test methods [see 5.1.1 a) and 6.1.1];
d) The reference standards for physical and chemical properties have been deleted (see 5.1.1.1 and Appendix B of the.2005 edition);
e) Changed the key performance indicator requirements for glass tube stones and glass tube nodules [see 5.1.1 c) and d),.2005 edition
5.1.1.2 and 5.1.1.3];
f) The limit value of the solar absorption ratio (AM1.5) of the solar selective absorption coating has been changed (see 5.1.2, 5.1.2 of the.2005 edition);
g) The limit of hemispherical emissivity of solar selective absorption coatings has been changed (see 5.1.3, 5.1.3 of the.2005 edition);
h) The limits of air drying performance parameters have been changed (see 5.2, 5.2 of the.2005 edition);
i) The limit of solar radiation for collector tubes has been changed (see 5.3, 5.3 of the.2005 edition);
j) The limit of the average heat loss coefficient has been changed (see 5.4, 5.4 of the.2005 edition);
k) The vacuum quality requirements and tests have been changed (see 5.5.2 and 6.5.2, 5.5.2 and 6.5.2 of the.2005 edition);
l) Changed the reference standard for cover glass tube diameter tolerance, added the cover glass tube diameter tolerance test method and judgment rules (see
5.9.7, 6.9.7, 7.2.3 and 7.3.5, 5.9.6 of the.2005 edition);
m) The reference standard of the solar transmittance test method has been changed, and the reference standard of the solar absorption test method has been added (see 6.1.2 and
6.1.4, 5.1.1.1, Appendix C of the.2005 edition);
n) Added the test method for hemispherical emission ratio (see 6.1.5);
o) The ambient temperature for air-exposure and stuffy-exposure tests has been changed (see 6.2.1 and 6.3.1, 5.2, 5.3 and 6.2.1 of the.2005 edition);
p) The test steps for air drying performance parameters have been changed (see 6.2.4, 6.2.3 of the.2005 edition);
q) All annexes have been deleted (see Appendices A, B, C and D of the.2005 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 Solar Energy Standardization Technical Committee (SAC/TC402).
This document was drafted by. Beijing Huaye Sunshine New Energy Co., Ltd., China National Institute of Standardization, Shandong Longguang Tianxu Solar Energy Co., Ltd.
Beijing Daorong New Energy Co., Ltd., Shandong Linorite New Energy Co., Ltd., Beijing Tus-Clean Energy Technology Co., Ltd., Qingdao
Economic and Technological Development Zone Haier Water Heater Co., Ltd., Zhejiang Yuanneng New Energy Co., Ltd., Shandong Huaye Sunshine New Energy Co., Ltd., Tsinghua
Shanxi Clean Energy Research Institute of University.
The main drafters of this document are. Yin Zhiqiang, Zhou Xiaowen, Liu Meng, Xing Zuoxin, Xue Daorong, Ma Guangbai, Zhong Hongwei, Shao Jiajia, Yang Jie, Li Xuguang,
Yang Chuntao, Zha Jiawen, Fu Jianping, and He Yuan.
This document was first issued in.1997, revised for the first time in.2005, and this is the second revision.
All-glass vacuum solar collector tube
1 Scope
This document specifies the structure and naming, technical requirements, test methods, inspection rules and marking of all-glass vacuum solar collector tube products.
Packaging, transportation and storage.
This document applies to all-glass evacuated solar collectors that receive solar radiation and convert it into thermal energy.
2 Normative references
The 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/T 191 Pictorial markings for packaging, storage and transportation
GB/T 308.1 Rolling bearing balls Part 1.Steel balls
GB/T 9505 Evaporable barium getter
GB/T 12936 Terminology of solar thermal utilization
GB/T 13384 General technical requirements for packaging of electromechanical products
GB/T 19565 Pyranometer
GB/T 25965 Test method for normal emissivity of materials and hemispherical emissivity of all-glass evacuated solar collectors
GB/T 25968 Test method for measuring solar transmittance and solar absorption of materials using a spectrophotometer
GB/T 29159 Glass tubes for all-glass vacuum solar collectors
ISO 9488 Solar energy-Vocabulary
3 Terms and definitions
The terms and definitions defined in GB/T 12936, ISO 9488 and the following apply to this document.
3.1
Knot of glass tube
There is vitreous humor in the vitreous body that has a different composition from the main body of vitreous.
3.2
Stone of glass tube
Solid inclusions contained in the vitreous body.
3.3
A coating with high solar absorptivity and low emissivity.
3.4
The inner glass tube has a solar selective absorption coating on the outer surface, which absorbs solar radiation and converts it into heat energy.
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