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Basic data
| Standard ID | GB/T 28712.1-2023 (GB/T28712.1-2023) |
| Description (Translated English) | Types and basic parameters of heat exchangers - Part 1: Floating heat exchangers |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J75 |
| Classification of International Standard | 71.120.30 |
| Word Count Estimation | 26,249 |
| Date of Issue | 2023-09-07 |
| Date of Implementation | 2024-01-01 |
| Older Standard (superseded by this standard) | GB/T 28712.1-2012 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 28712.1-2023: Types and basic parameters of heat exchangers - Part 1: Floating heat exchangers
---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 71.120.30
CCSJ75
National Standards of People's Republic of China
Replace GB/T 28712.1-2012
Heat exchanger types and basic parameters
Part 1.Floating head heat exchanger
Published on 2023-09-07
2024-01-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
PrefaceⅠ
Introduction II
1 Scope 1
2 Normative reference documents 1
3 Terms and Definitions 1
4 Type 1
5 Basic parameters 5
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is Part 1 of GB/T 28712 "Heat exchanger types and basic parameters". GB/T 28712 has released the following
part.
---Part 1.Floating head heat exchanger;
---Part 2.Fixed tube plate heat exchanger;
---Part 3.U-shaped tube heat exchanger;
---Part 4.Thermosiphon reboiler;
---Part 5.Spiral plate heat exchanger;
---Part 6.Air-cooled heat exchanger.
This document replaces GB/T 28712.1-2012 "Heat exchanger types and basic parameters Part 1.Floating head heat exchanger" and is consistent with
Compared with GB/T 28712.1-2012, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) The nominal diameter range of the floating-head internal diversion heat exchanger has been increased from 1900mm to 2600mm (see Chapter 1);
b) The nominal diameter range of the floating head condenser has been increased from 1800mm to 2200mm (see Chapter 1);
c) Added parameters for heat exchange tubes of non-ferrous metals such as nickel, zirconium and their alloys (see 5.2);
d) Added the baffle spacing parameter for the nominal diameter range of the floating head internal flow heat exchanger from 1900mm to 2600mm (see
5.3);
e) Added the nominal diameter parameters of the pipe for the nominal diameter range of the 6000mm tube length condenser from.2000mm to 2200mm (see
5.5.2);
f) The bypass baffle requirement is deleted (see 5.7 of the.2012 edition).
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed and coordinated by the National Boiler and Pressure Vessel Standardization Technical Committee (SAC/TC262).
This document was drafted by. Shanghai Lanbin Petrochemical Equipment Co., Ltd., Sinopec Engineering Construction Co., Ltd., China Global Engineering Co., Ltd.
Co., Ltd. Beijing Branch, Sinopec Guangzhou Engineering Co., Ltd., Shenyang Special Equipment Inspection and Research Institute, Sinopec Nanjing Engineering Co., Ltd., Lan
Zhou Lanshi Heavy Equipment Co., Ltd., China Special Equipment Inspection and Research Institute, Gansu Lanke Petrochemical High-tech Equipment Co., Ltd., Shanghai
Blue Ocean Science and Technology Testing Co., Ltd.
The main drafters of this document. Ma Yiming, Zhang Yingkai, Yue Guoyin, Zhang Guoxin, Luan Bo, Zhu Juanjuan, Li Yonghong, Wei Xiaoting, Feng Xuchi, Chen Zhiwei,
Zhang Yanfeng, Liu Fulu, Zhou Wenxue, Jiang Chen, Zhang Siliang.
This document was first published in.2012 and this is the first revision.
Introduction
GB/T 28712 "Heat exchanger types and basic parameters" aims to standardize the typical structural types of heat exchangers used in the energy industry, fully considering the installation
In line with the development trend of large-scale installations, taking into account the product standards and construction level of my country's heat exchangers, the applicable range of parameters and their supporting dimensions are clarified. consider
The functions, structures, and parameters of different heat exchangers are obviously different, and they are composed of six parts.
---Part 1.Floating head heat exchanger.
---Part 2.Fixed tube plate heat exchanger.
---Part 3.U-shaped tube heat exchanger.
---Part 4.Thermosiphon reboiler.
---Part 5.Spiral plate heat exchanger.
---Part 6.Air-cooled heat exchanger.
Heat exchanger type and basic parameter standards are of great significance to the realization of standardization, serialization, generalization and scale of heat exchangers in my country.
righteous. For large-volume and wide-ranging heat exchanger products, the standardization of their structures and parameters can first promote the standardization of product construction, improve design quality,
efficiency; secondly, it can save tools, tooling, material consumption and backlog in manufacturing and use; finally, it can facilitate users to select and use products.
Replacement, repair and interchange. In recent years, the construction of large-scale refining and chemical integration projects in our country has entered a period of rapid development. As a typical energy-consuming equipment
The usage of heat exchangers has increased significantly; the large-scale installation has pushed the structural size of heat exchangers to new heights, and the demand for large-scale single equipment is increasing.
Outstanding; the construction and implementation of a large number of engineering projects has accumulated rich experience in design, manufacturing and engineering application for the construction of heat exchangers. at the same time,
GB/T 151 "Heat Exchanger" has also been revised accordingly, forming for the first time a comprehensive product standard that comprehensively covers the typical structure of heat exchangers, and
Applicable parameters have been significantly adjusted. To this end, it is necessary to revise the heat exchanger type and basic parameter standards to adapt to industry and standard development.
exhibition needs.
This document focuses on the large-scale development needs of floating head heat exchangers. Through product design, production, use and standardization, etc.
The research and analysis have greatly expanded the types and basic parameters of floating-head internal diversion and external diversion heat exchangers and floating-head condensers, promoting the
The efficient selection, construction, maintenance and exchange of this type of products has a positive impact on implementing my country's "energy saving and emission reduction" strategy and promoting "green design"
significance.
Heat exchanger types and basic parameters
Part 1.Floating head heat exchanger
1 Scope
This document specifies floating head type internal and external flow heat exchangers (hereinafter referred to as "heat exchangers") and floating head condensers (hereinafter referred to as
Condenser) type and basic parameters.
This document applies to the following heat exchangers and condensers.
a) Internal flow heat exchangers with a nominal diameter not greater than 2600mm and a nominal pressure not greater than 6.4MPa;
b) External flow heat exchangers with a nominal diameter not greater than 1000mm and a nominal pressure not greater than 4.0MPa;
c) Floating head condenser with a nominal diameter not greater than 2200mm and a nominal pressure not greater than 4.0MPa.
Note. The data in this document are based on the hook-and-loop floating head (S type) and do not involve the extractable floating head (T type).
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 151 heat exchanger
NB/T 47065.1 Vessel supports Part 1.Saddle supports
3 Terms and definitions
The terms and definitions defined in GB/T 151 apply to this document.
4 types
4.1 Heat exchanger
4.1.1 Internal flow heat exchanger
The type of internal flow heat exchanger is shown in Figure 1.
Figure 1 Internal flow heat exchanger
...
