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GB/T 28553-2012: Steam turbines -- Steam purity
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 28553-2012 | English | 254 |
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Steam turbines -- Steam purity
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GB/T 28553-2012
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Basic data | Standard ID | GB/T 28553-2012 (GB/T28553-2012) | | Description (Translated English) | Steam turbines -- Steam purity | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K54 | | Classification of International Standard | 27.040 | | Word Count Estimation | 13,154 | | Adopted Standard | IECTS 61370-2002, IDT | | Regulation (derived from) | National Standards Bulletin 2012 No. 13 | | 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 chemical properties of steam for the steam turbine steam path to prevent corrosion and fouling, corrosion of the turbine risk, reducing efficiency or output power losses to a minimum. This standard applies with a rated power of | GB/T 28553-2012: Steam turbines -- Steam purity---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.
ICS27.040
K54
National Standards of People's Republic of China
GB/T 28553-2012/IEC /TS61370.2002
Turbine steam purity
(IEC /TS61370.2002, IDT)
Issued on. 2012-11-01 2012-06-29 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard rule according to GB/T 1.1-2009 given draft.
This standard uses the translation method is equivalent to using IEC /TS61370.2002 "turbine steam purity" (in English).
Appendix A of this standard is an informative annex.
The standard proposed by China Electrical Equipment Industrial Association.
This standard by the National Standardization Technical Committee turbine (SAC/TC172) centralized.
This standard was drafted. Shanghai Power Equipment Research Institute, Xi'an Thermal Power Research Institute Co., Ltd.
The main drafters of this standard. Ye Fen, in the novel, Zhuyou Jun, Yang Ruifu, Liu Chen, Li Xicheng, Zheng Hongliang.
GB/T 28553-2012/IEC /TS61370.2002
Turbine steam purity
1 Scope
This standard specifies the chemical properties of steam for a steam turbine in order to prevent corrosion and fouling the steam passage, the risk of corrosion steam turbine, efficiency
Rate or reduce output power loss to a minimum.
This standard applies to condensing steam or back-pressure power generation steam turbine with a rated power. However, the rated power or steam pressure applied
Range by economic factors (such as the relative cost of turbine monitoring apparatus and equipment) limits. This standard is compiled for the new units, but also suitable
For existing units.
This standard describes the limit values \u200b\u200bfor the protection of the turbine is designed. Users also should be aware of other devices (such as a boiler or steam generation
Device) on steam purity.
This standard applies to any source of steam turbine driven except for geothermal source.
After the initial start, after the steam it may take several months to achieve optimal chemical state some parameters (sodium, cation conductivity) than
Other parameters (silica, iron, copper) quickly achieve the best result, normal steam parameters of the target may be difficult to put into operation during the
Reached, but with the improvement of the quality of steam and gradually improved.
Appendix A lists the recommended guidelines of this standard and the authentication methods of chemical purity steam to steam for to ensure that the turbine
Integrity and efficiency of the limit value is not mandatory, as a separate unit on-site guidance on the basis of presentation. Verification. By choosing to close
Suitable sampling locations and measurement parameters continuously or intermittently to carry out.
2 Symbols and Abbreviations
The following symbols and abbreviations apply to this document.
AVT --- all volatile treatment
BWR BWR ---
c.con --- cation conductivity
CT --- alkali treatment
EPT --- equilibrium phosphate treatment
FAC --- flow accelerated corrosion
IWC --- International Water Conference
OT --- oxidation treatment
PT --- phosphate treatment
PWR PWR ---
3 steam purity control requirements
3.1 corrosion, loss of efficiency or output power loss
To ensure that the turbine is running at high efficiency, power output and efficiency, high purity steam. Because impurities can precipitate formed from
Which led to loss of efficiency or output power loss, or corrosion. Corrosion can cause rotating parts completely ineffective. Expanding vapor in a low concentration
A small amount of a high impurity concentration and moisture coexistence state, which coincides with the moisture of the turbine component surface temperature and pressure, but there are little
The difference between the horizontal impurities should be attainable, measurable and consistent with the high efficiency, high output power and high efficiency requirements.
GB/T 28553-2012/IEC /TS61370.2002
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