GB/T 25862-2010Coaxial heat exchanger for refrigeration equipment and air-conditioning (English PDF)
制冷与空调用同轴套管式换热器
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
January 10, 2011
Implementation date
October 1, 2011
Scope
GB/T 25862-2010 is the English-translated version of 制冷与空调用同轴套管式换热器.
GB/T 25862-2010 is the Chinese standard "Coaxial heat exchanger for refrigeration equipment and air-conditioning".
Its scope clause reads: 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. Its clauses include terms and definitions; basic parameters.
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Document preview — GB/T 25862-2010
National Standard of the People's Republic of China
- ICS
- 27.200
- Classification
- J 73
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Basic parameters
- 5 requires
- 6 Test
- 7 inspection rules
- 8 signs, packaging, transportation and storage
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
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 = pidl × 10-6 (1)
GB/T 25861-2023 | GB/T 25127.1-2020 | GB/T 25127.2-2020 | GB/T 25858-2026 | GB/T 25857-2022 | […]
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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.
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