GB/T 27698.5-2011Test method for the performance of heat exchangers and heat exchange element -- Part 5: Heat transfer tube for tubular heat exchangers (English PDF)

Foreword

GB/T 27698 "heat exchangers and heat transfer device performance test methods" is divided into eight sections.

--- Part 1. General requirements;

--- Part 2. shell and tube heat exchanger;

--- Part 3. plate heat exchanger;

--- Part 4. spiral plate heat exchanger;

--- Part 5. shell and tube heat exchanger heat transfer tubes;

--- Part 6. Used for air cooling fin tube;

--- Part 7. Air Cooler noise measurement;

--- Part 8. Calibration of industrial heat exchangers.

This section GB/T 27698 Part 5.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This part of the National boiler pressure vessel Standardization Technical Committee (SAC/TC262) and focal points.

This section is responsible for drafting units. High-tech Gansu Lanke Petrochemical Equipment Co., Ltd. (Lanzhou Petroleum Machinery Research Institute).

It participated in the drafting of this section. Country refining oil drilling equipment for Quality Supervision and Inspection Center, industrial machinery energy-saving projects Heat Transfer Technology Center, Xi'an Jiaotong University.

1 Scope

This section GB/T 27698 specifies the shell and tube heat exchanger heat transfer tubes liquid - without phase change, vapor - liquid phase change condensation, flow boiling Evaporation phase change and pool boiling evaporation phase change heat transfer test conditions and fluid resistance performance test methods.

This section applies to the test fluid is a single component or as a single component only consider liquid -, vapor - liquid.

This section only consider material thermal resistance of heat transfer tubes, the heat transfer tubes are not considered within the outer fouling resistance.

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 151 shell and tube heat exchangers GB/T 27698.1 heat exchangers and heat transfer device performance test methods - Part 1. General requirements

3 Requirements

3.1 should control the heat transfer tubes made of single tube heat exchanger prototype.

3.2 prototype design data and test parameters.

a) type of heat transfer tubes;

b) heat exchange material;

c) heat transfer tubes geometry;

d) test length;

e) equivalent diameter;

f) flow channel cross-sectional area;

g) heat transfer area.

Above design data and test parameters which determine the method of calculation should be based according to GB 151 and GB/T 27698.1 requirements get on.