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GB/T 45313-2025: Technical requirements for molten salt thermal storage system of solar thermal electric plant
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| GB/T 45313-2025 | English | 279 |
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Technical requirements for molten salt thermal storage system of solar thermal electric plant
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GB/T 45313-2025
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Basic data | Standard ID | GB/T 45313-2025 (GB/T45313-2025) | | Description (Translated English) | Technical requirements for molten salt thermal storage system of solar thermal electric plant | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F12 | | Classification of International Standard | 27.160 | | Word Count Estimation | 14,150 | | Date of Issue | 2025-02-28 | | Date of Implementation | 2025-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45313-2025: Technical requirements for molten salt thermal storage system of solar thermal electric plant
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GB/T 45313-2025 English version. Technical requirements for molten salt thermal storage system of solar thermal electric plant
ICS 27.160
CCSF12
National Standard of the People's Republic of China
Molten salt heat storage system for solar thermal power station
Technical requirements
Released on 2025-02-28
2025-09-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 System Configuration 2
5 Technical Requirements 2
5.1 Normal working conditions 2
5.2 Systematic functions and performance 2
5.3 Molten salt storage tank 3
5.4 Molten Salt Pump 3
5.5 Oil-salt heat exchanger 4
5.6 Molten Salt Pipes and Valves 4
5.7 Heat storage medium 4
5.8 Instrumentation and Control 4
5.9 Auxiliary systems 5
6 Test content 6
References 8
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 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 was proposed by the China Electricity Council.
This document is under the jurisdiction of the National Solar Thermal Power Generation Standardization Technical Committee (SAC/TC565).
This document was drafted by. Zhejiang Kesheng Technology Co., Ltd., Zhejiang Green Storage Technology Co., Ltd., China General Nuclear Power Wind Power Co., Ltd.,
China Electric Power Engineering Consulting Group Northwest Electric Power Design Institute Co., Ltd., Beijing University of Technology, and Shandong Electric Power Engineering Consulting Institute Co., Ltd.
The main drafters of this document are. Xu Neng, Jin Jianxiang, Tang Yaping, Yu Zhiyong, Zhou Hui, Wang Yina, Mi Xiaoling, Bi Wenjian, Sun Feng, Zhou Ye, Tang Juan,
Wang Xuanhua, Zhou Enbo, Zhang Haobin, Yin Hang, Zhao Xiaohui, Wang Haixia, Che Sheng, Wu Yuting, Yu Mingfeng, Liu Yida, Hu Yigong, Zhang Cancan, Huang Qi,
Wang Nini, Zhang Bin, and Chen Wei.
Molten salt heat storage system for solar thermal power station
Technical requirements
1 Scope
This document specifies the system composition, technical requirements and corresponding testing contents of the molten salt heat storage system of a solar thermal power station.
This document is applicable to solar thermal power stations that use molten salt as a heat storage medium for sensible heat storage and have a maximum storage tank volume of not less than
The 500m3 double-tank heat storage system includes a direct heat storage system with molten salt as the heat transfer medium and an indirect heat storage system with thermal oil as the heat transfer medium.
Thermal system.
Note. A dual-tank heat storage system refers to a heat storage system with two types of storage tanks. a high-temperature molten salt storage tank and a low-temperature molten salt storage tank, with two or more tanks.
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 6075.7-2015 Mechanical vibration - Measurement and evaluation of machine vibration on non-rotating parts - Part 7.Industrial applications
Rotodynamic pumps (including rotating shaft measurement)
GB/T 16839.1-2018 Thermocouples Part 1.Electromotive force specifications and tolerances
GB/T 29529-2013 Pump noise measurement and evaluation method
GB/T 30121-2013 Industrial platinum thermal resistors and platinum temperature sensing elements
GB/T 40104 Terminology for Solar Thermal Power Stations
GB/T 41087 Technical requirements for heat exchange systems of solar thermal power plants
GB/T 44800 Technical requirements for working media for heat storage/heat transfer in solar thermal power plants - Molten salts
3 Terms and definitions
The terms and definitions defined in GB/T 40104 and the following apply to this document.
3.1
Effective heat storage capacity effectiveheatstoragecapacity
The amount of heat released by the heat storage system from the fully charged state to the fully released state.
Note 1.The fully charged state refers to the state where the heat storage system's charge and temperature reach the design value and no further charging is required.
Note 2.The complete heat release state refers to the state when the heat release and temperature of the heat storage system reach the design value and can no longer release heat.
3.2
Thermal efficiency of thermal storage system
In a complete charging and discharging cycle, the charging and discharging process is carried out continuously, and the energy released by the heat storage system through the heat transfer fluid is
The ratio of the energy received.
3.3
Rated charging power ratedchargepower
The amount of heat received by the heat storage system through the heat transfer medium per unit time under rated temperature and rated flow conditions.
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