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GB/T 24947-2010 English PDF

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GB/T 24947-2010: Requirement for water quality of marine auxiliary boiler
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Basic data

Standard ID GB/T 24947-2010 (GB/T24947-2010)
Description (Translated English) Requirement for water quality of marine auxiliary boiler
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard U41
Classification of International Standard 47.020.20
Word Count Estimation 5,597
Date of Issue 2010-08-09
Date of Implementation 2010-12-01
Quoted Standard GB/T 1576
Regulation (derived from) National Standard Approval Announcement 2010 No.3 (Total No.158)
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 marine auxiliary boiler (hereinafter referred to as " boiler ") water quality requirements at runtime. This standard applies to the design pressure of not more than 2. 5 MPa, the medium is water and saturated steam boiler fuel, gas boiler, fuel gas combination boilers, as well as the media outlet temperature does not exceed 120��C for hot water boilers.

GB/T 24947-2010: Requirement for water quality of marine auxiliary boiler

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Requirement for water quality of marine auxiliary boiler ICS 47.020.20 U41 National Standards of People's Republic of China Marine auxiliary boiler water quality requirements Issued on. 2010-08-09 2010-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China State Shipbuilding Corporation. This standard by the National Marine Machinery Standardization Technical Committee. This standard was drafted. Green Zhangjiagang Shazhou Boiler Co., Ltd., Qingdao Marine Boiler Factory Co., Ltd., China Shipbuilding Industry Integrated Technology Surgery Institute of Economic Research, China Classification Society Qingdao Branch, Qingdao Kai boilers Equipment Co. The main drafters of this standard. Weihua Xing, Liu Guoliang, Qiu Yudong, car Rui, Wang Bo, Zhong Chongxin. Marine auxiliary boiler water quality requirements

1 Scope

This standard specifies the marine auxiliary boiler (hereinafter referred to as "boiler") water quality requirements at runtime. This standard applies to the design pressure is less than 2.5MPa, medium is water and saturated steam boiler fuel, gas boiler, fuel gas group Fit the boiler, as well as medium outlet temperature does not exceed 120 ℃ hot water boiler.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 1576 industrial boiler water quality

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Water supply feedwater By a feed pump from the feed water, condensate boiler inlet supply boilers and the like. 3.2 Pot of water boilerwater Circulating boiler, means the concentrated water inside the boiler. Generally refers to the water within the drum.

4 Requirements

Steam boiler feedwater 4.1 should generally use the pot for chemical water treatment. The water quality should meet the requirements in Table 1. Table 1 steam boiler water quality standards Water pot of water projects Rated pressure/MPa ≤1.0 > 1.0 ~ 1.6 > 1.6 ~ 2.5 ≤1.0 > 1.0 ~ 1.6 > 1.6 ~ 2.5 Total hardness (in Ca2, Mg2 meter)/(mg/L) < 1 < 1 < 1 - - - Total alkalinity (OH-, CO32- meter)/(mg/L) - - - ≤450 ≤350 ≤350 Salinity (Cl -)/(mg/L) ≤10 ≤10 ≤10 < 600 < 500 < 400 pH (25 ℃ when) ~ 7 ~ 97 ~ 910 97 ~ 12 10 ~ 12 10 ~ 12 Suspension/(mg/L) ≤5 ≤5 ≤5 - - - DO/(mg/L) ≤0.1 ≤0.1 ≤0.05 - - - Dissolved solids/(mg/L) - - - < 4000 < 3000 < 2500 Oil content/(mg/L) ≤2 ≤2 ≤2 < 20 < 15 < 15 Iron content/(mg/L) ≤0.3 ≤0.3 ≤0.3 - - - Sulfite (SO32 -)/(mg/L) - - - 10 ~ 30 10 ~ 30 10 ~ 30 Phosphate (PO43 -)/(mg/L) - - - 10 ~ 30 10 ~ 30 10 ~ 30

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