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GB/T 23681-2009: Refrigerating systems and heat pumps -- System flow diagrams and piping instrument diagrams -- Layout and symbols
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23681-2009 | English | 634 |
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Refrigerating systems and heat pumps -- System flow diagrams and piping instrument diagrams -- Layout and symbols
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GB/T 23681-2009
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Basic data | Standard ID | GB/T 23681-2009 (GB/T23681-2009) | | Description (Translated English) | Refrigerating systems and heat pumps -- System flow diagrams and piping instrument diagrams -- Layout and symbols | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J73 | | Classification of International Standard | 27.200 | | Word Count Estimation | 32,395 | | Date of Issue | 2009-04-17 | | Date of Implementation | 2009-11-01 | | Adopted Standard | EN 1861-1998, IDT | | Regulation (derived from) | PRC National Standard Approval Announcement 2009 No.6 (Total No.146) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the symbols and rules of drawing refrigeration systems and heat pumps and piping system flow chart diagram of the instrument. These graphics illustrate not only the structure and function of the refrigeration system, and is composed of the refrigeration system design, production, installation, production, run, maintenance and downtime necessary part of all technical documents. This standard applies to vapor compression refrigeration, absorption refrigeration, steam jet refrigeration, vortex tube cold, air cooling, absorption refrigeration cooling achieved by working fluid status changes refrigeration system. This standard does not apply to internal heat transfer system implemented by the electrical circuit cooling system, such as the Peltier effect. | GB/T 23681-2009: Refrigerating systems and heat pumps -- System flow diagrams and piping instrument diagrams -- Layout and symbols
---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.
Refrigerating systems and heat pumps. System flow diagrams and piping instrument diagrams. Layout and symbols
ICS 27.200
J73
National Standards of People's Republic of China
Refrigeration systems and heat pumps
System flow diagrams and piping and instrumentation diagrams drawing symbols
Posted 2009-04-17
2009-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 classification, information and representation 1
5 Draw 2
6 graphic symbols selection 4
Appendix A (informative) cooling system flow chart legend 19
Annex B (informative) letter code, universal measurement and control symbols and symbols Example 22
References 26
Foreword
This standard is equivalent to using the European Committee for Standardization Standard EN1861.1998 "refrigeration systems and heat pumps and piping systems flowchart meter
Figure Drawing and symbols. " EN1861 mainly based on ISO 1000 "International System of Units (SI) and International System of Units and certain other multifunction units
Use Recommended Practice ", ISO 3098-1" font mapping technology - Part 1. Common letters ", ISO 3511-2" process measurement control functions
Energy and instrumentation Symbolic representation - Part 2. Control the basic requirements of supplement ", ISO 3511-3" process measurement and instrumentation provided
Preparation of notation - Part 3. Detailed symbols for instrument interconnection diagrams ", ISO 3511-4" process measurement control functions and instrumentation provided
Shared display control function of the basic symbols
Use ISO 4196 graphic symbols arrow
ISO 10628 General process flow chart of the process
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Reflect refrigeration systems and heat processes, structure and function, with graphic symbols, notes, and alphanumeric code simplified diagram.
4 classification, information and representation
4.1 Overview
Depending on the information and the representation of the refrigeration system is a flowchart divided into two categories.
--- System flow chart (see 4.2);
--- Pipeline instrumentation diagrams (see 4.3).
Flowchart should consider requiring function.
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