GB/T 37753-2019Performance test code on steam surface condenser (English PDF)
表面式凝汽器性能试验规程
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 4, 2019
Implementation date
January 1, 2020
Scope
GB/T 37753-2019 is the English-translated version of 表面式凝汽器性能试验规程.
GB/T 37753-2019 is the Chinese standard "Performance test code on steam surface condenser". Its scope clause reads: This standard specifies the basic principles and methods of instrument selection, test procedures and test data processing for surface condenser performance tests.
This standard applies to the performance test of water-cooled and surface condensers operating under vacuum. Its clauses include terms and definitions; symbols.
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Document preview — GB/T 37753-2019
National Standard of the People's Republic of China
- ICS
- 27.040
- Classification
- K 54
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Symbol
- 5 General
- 6 Measuring instruments and methods
- 7 Calculation of results
- 8 Test report
- Appendix A (informative appendix) Test preparation and flow chart
- Appendix B (informative appendix) Operational performance monitoring
- Appendix C (Informative Appendix) Leak Detection of Vacuum System
- Appendix D (Informative Appendix) Cause Analysis of Condenser Air Lock
- Appendix E (informative appendix) Performance analysis of air extraction equipment
- Appendix F (informative appendix) Cleaning coefficient comparison test
- Appendix G (informative appendix) Physical properties of sea water
- Appendix H (informative appendix) Calculation example
- References
1 Scope
This standard specifies the basic principles and methods of instrument selection, test procedures and test data processing for surface condenser performance tests.
This standard applies to the performance test of water-cooled and surface condensers operating under vacuum.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 8117 (all parts) Steam turbine thermal performance acceptance test procedure
GB/T 13930 Water ring vacuum pump and water ring compressor gas volume measurement method
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Condenserpressure
The absolute static pressure maintained at the steam channel 300mm above the first row of condenser tubes in the condenser shell.
3.2 Condenserheatload
The heat transferred from steam to cooling water in the condenser per unit time.
3.3 Overall heat transfer coefficient
After considering the comprehensive factors, the heat transfer of the condenser per unit time, unit surface area, and unit temperature difference.
3.4 Cleanlinessfactor
Under the same operating conditions, the ratio of the heat transfer coefficient of the old condenser tube to the new tube or clean tube.
3.5 Condensate subcooling
The difference between the saturation temperature of steam and the temperature of condensed water under condenser pressure.
3.6 Dissolved oxygen in the condensate
The amount of dissolved oxygen per unit in condensate.
3.7 Condensercirculatingwaterpressurelosses
The difference between the static pressure at the inlet and outlet of the cooling water.
4 symbols
This standard uses the symbols and subscripts, superscripts and their definitions specified in Table 1, Table 2, and Table 3, unless otherwise specified.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 45 pages — is available in the English PDF.
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