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GB/T 25862-2010: Coaxial heat exchanger for refrigeration equipment and air-conditioning
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25862-2010 | English | 419 |
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Coaxial heat exchanger for refrigeration equipment and air-conditioning
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GB/T 25862-2010
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Basic data | Standard ID | GB/T 25862-2010 (GB/T25862-2010) | | Description (Translated English) | Coaxial heat exchanger for refrigeration equipment and air-conditioning | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J73 | | Classification of International Standard | 27.200 | | Word Count Estimation | 18,147 | | Date of Issue | 1/10/2011 | | Date of Implementation | 10/1/2011 | | Quoted Standard | GB/T 191; GB/T 1527; GB/T 3625; GB/T 8163; GB/T 9286-1998; GB/T 10079-2001; GB/T 10125; GB/T 13306; GB/T 13384; GB/T 13793; GB/T 14976; JB/T 4750-2003; JB/T 7249; JB/T 90558 | | Regulation (derived from) | Announcement of Newly Approved National Standards 2011 No. (No. 166 overall) 1 | | 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 Refrigeration and Air Conditioning Terminology and definitions for the coaxial tube heat exchanger, the basic parameters, requirements, testing, inspection rules, marking, packaging, transport and storage. This Standard is applicable to to R134a, R22, R407c, R410A, etc. A1 refrigerants, water, saline solution, and ethylene glycol as the refrigerant contained in the refrigeration and air-conditioning heat exchanger. | GB/T 25862-2010: Coaxial heat exchanger for refrigeration equipment and air-conditioning---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.
Coaxial heat exchanger for refrigeration equipment and air-conditioning
ICS 27.200
J73
National Standards of People's Republic of China
Refrigeration & Air Conditioning coaxial tube heat exchanger
Issued on. 2011-01-10
2011-10-01 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 Basic parameters 1
5 requires 3
6 Test 5
7 7 inspection rules
8 signs, packaging, transportation and storage 9
Model methodology Appendix A (informative) coaxial tube heat exchanger 10
Performance test and calculation methods in Appendix B (normative) coaxial tube heat exchanger 11
Foreword
This document, GB/T 1.1-2009 given rule drafting.
The standard proposed by China Machinery Industry Federation.
This standard by the national refrigeration and air conditioning equipment Standardization Technical Committee (SAC/TC238) centralized.
This standard is drafted by. Intel heat transfer equipment (Zhejiang) Co., Ltd., Hefei General Machinery Research Institute, Beijing Olympic Taihua Refrigeration Equipment
Ltd., Hefei General Environmental Control Technology Co., Ltd.
Participated in the drafting of this standard. Zhejiang boilers Limited.
The main drafters of this standard. Fang true Jian, Huang Linfeng, Shizhu Qing, Li Bo, Pulian Fu, Zhang Jin water, Peng Fei, Cheng Li rights, Chen Fang electricity.
This standard by the National Standardization Technical Committee refrigeration and air conditioning equipment responsible for the interpretation.
Refrigeration & Air Conditioning coaxial tube heat exchanger
1 Scope
This standard specifies the refrigeration and air conditioning coaxial tube heat exchanger (hereinafter referred to as "heat") terms and definitions, basic parameters, to
Requirements, testing, inspection rules, marking, packaging, transportation and storage.
This standard applies to R134a, R22, R407c, R410A, etc. A1 refrigerants, water, saline solution and ethylene glycol as the carrier refrigerant
Refrigeration and air-conditioning heat exchangers.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 191 Packaging - Pictorial signs
GB/T 1527 copper and copper alloy tube drawing
GB/T 3625 heat exchangers and condensers with titanium and titanium alloy tube
GB/T 8163 Seamless steel tubes
Cut test GB/T 9286-1998 Paints and varnishes
GB/T 10079-2001 piston single-stage refrigeration compressor
GB/T 10125 artificial atmosphere corrosion test salt spray test
GB/T 13306 signs
GB/T 13384 mechanical and electrical products packaging General technical conditions
GB/T 13793 straight seam welded steel pipe
GB/T 14976 fluid transport stainless steel seamless pipe
JB/T 4750-2003 refrigeration apparatus pressure vessels
JB/T 7249 term refrigeration equipment
JB/T 9058 Determination of refrigeration equipment cleanliness
3 Terms and Definitions
JB/T 7249 and as defined in the following terms and definitions apply to this document.
3.1
Coaxial tube heat exchanger coaxialheatexchanger
Inner tube with spiral, the inner and outer tubes are closely nested and coaxial tube heat exchanger.
4 basic parameters
4.1 heat transfer area
Without machining or rolling into a spiral pipe outer area in front of the heat exchanger heat transfer area, according to equation (1) calculations.
S = πdl × 10-6 (1)
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