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GB/T 40703-2021Design specifications of medium temperature solar heating system for industrial applications (English PDF)

太阳能中温工业热利用系统设计规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 11, 2021

Implementation date

May 1, 2022

Scope

GB/T 40703-2021 is the English-translated version of 太阳能中温工业热利用系统设计规范.

GB/T 40703-2021 sets out how to design solar heating systems that supply medium-temperature heat to industrial processes. It applies to systems that use a liquid heat transfer medium with a collection temperature above 100 °C and below 250 °C, and may guide similar systems for civilian processes.

The document covers system composition, basic rules, design parameters and energy demand analysis, then the solar collector system, with the calculation of collector area, layout, expansion and buffer tanks, oil storage tank and oil and gas separator.

It also deals with thermal storage, the heating system with steam generator and auxiliary energy equipment, electrical and control systems with monitoring and electrical safety protection, general equipment such as pumps, heat exchangers, water treatment, piping and valves, and system safety. It was issued on 11 October 2021 and has applied since 1 May 2022.

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Document preview — GB/T 40703-2021

National Standard of the People's Republic of China

ICS: 27.160
Classification: F 12

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 System composition
5 Basic rules
6 Parameters for system design
7 Energy demand analysis
8 Solar collector system
8.1 General provisions
8.2 Calculation of collector area
8.3 Layout of solar collector system
8.4 Expansion tank
8.5 Buffer tank
8.6 Oil storage tank
8.7 Oil and gas separator
9 Thermal storage system
9.1 General provisions
9.2 Heat storage medium
9.3 Heat storage device
10 Heating system
10.1 General provisions
10.2 Steam generator
10.3 Auxiliary energy equipment
11 Electrical and control system
11.1 General provisions
11.2 Control Subsystem
11.3 Monitoring subsystem
11.4 Electrical safety protection
12 General equipment
12.1 Circulating pump
12.2 Heat transfer working fluid
12.3 Heat exchanger
12.4 Water treatment equipment
12.5 Piping and valves
13 System Security
Appendix A (informative) Typical process temperature of different industrial processes
Appendix B (informative) Recommended collector selection
Reference

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 of Standardization Documents" Drafting.

1 Scope

This document specifies the system composition, design parameters, and energy demand analysis of the solar energy medium-temperature industrial heat utilization system (hereinafter referred to as the "system") analysis, general equipment requirements, solar heat collection systems, heat storage systems, heating systems, electrical and control systems, and system safety protection requirements.

This document is applicable to those that use liquid as the heat transfer medium, and the heat collection temperature is greater than 100°C and less than 250°C to provide heat energy for industrial processes. solar system. The solar energy medium-temperature heat utilization system that provides heat for civilian processes can be implemented with reference to this document.

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations 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 Vessel Part 1: General Requirements

GB/T 151 heat exchanger

GB/T 1576 Industrial boiler water quality

GB/T 3797 electrical control equipment

GB/T 12936 Terminology for Solar Thermal Utilization

GB/T 16895.21 Low-voltage electrical installations Part 4-41.Safety protection and electric shock protection

GB/T 18713 Technical Code for Design, Installation and Engineering Acceptance of Solar Hot Water System

GB/T 20095 Specification for Performance Evaluation of Solar Hot Water System

GB/T 29724 Energy monitoring of solar water heating system

GB/T 40517 Solar energy medium and low temperature heat storage device

GB 50016 Code for fire protection of building design

GB 50057 Code for lightning protection design of buildings

GB 50303 Code for Acceptance of Construction Quality of Building Electrical Engineering

GB 50364 Technical Standard for the Application of Solar Water Heating System in Civil Buildings

GB 50974 Technical Specification for Fire Water Supply and Hydrant System

GB 51348 Electrical Design Standard for Civil Buildings

SY/T 0515 Specification for Oil and Gas Separator

SY/T 0524 Thermal oil heating furnace system specification

ISO 9488 Solar Energy Vocabulary (Solarenergy-Vocabulary)

3 Terms and definitions

The following terms and definitions defined in GB/T 12936, GB/T 18713 and ISO 9488 apply to this document.

3.1 Solar medium temperature industrial heat utilization system

The solar heat collection temperature is greater than 100°C and less than 250°C, and it is a system that provides heat energy for industrial production processes.

Note: The system consists of solar heat collection system, heat storage system, heating system, electrical and control system.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB 50303 · ISO 9488

Cited by

GB/T 44818-2024Technical specification at the project level for assessment of greenhouse gas emission reductions - Solar thermal applications

Similar standards

GB 47739-2026|GB 47740-2026|GB/T 19141-2026|GB/T 29321-2026|GB/T 32826-2026|GB/T 32892-2026

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