|
US$259.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 14416-2023: Methods for sampling boiler steam
Status: Valid GB/T 14416: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 14416-2023 | English | 259 |
Add to Cart
|
3 days [Need to translate]
|
Methods for sampling boiler steam
| Valid |
GB/T 14416-2023
|
| GB/T 14416-2010 | English | 319 |
Add to Cart
|
3 days [Need to translate]
|
Methods for sampling boiler steam
| Obsolete |
GB/T 14416-2010
|
| GB/T 14416-1993 | English | 359 |
Add to Cart
|
3 days [Need to translate]
|
Methods for sampling boiler steem
| Obsolete |
GB/T 14416-1993
|
PDF similar to GB/T 14416-2023
Basic data | Standard ID | GB/T 14416-2023 (GB/T14416-2023) | | Description (Translated English) | Methods for sampling boiler steam | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F24 | | Classification of International Standard | 27.100 | | Word Count Estimation | 12,197 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-12-01 | | Older Standard (superseded by this standard) | GB/T 14416-2010 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 14416-2023: Methods for sampling boiler steam---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.
ICS 27:100
CCSF24
National Standards of People's Republic of China
Replacing GB/T 14416-2010
Sampling method of boiler steam
Released on 2023-05-23
2023-12-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 1
5 sample collection 1
6 Sample delivery 2
7 Sample cooling 4
Appendix A (Informative) Isokinetic Sampling 5
Appendix B (Informative) Influencing Factors of Sample Transport 6
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents"
drafting:
This document replaces GB/T 14416-2010 "Sampling Method for Boiler Steam": Compared with GB/T 14416-2010, except for structural adjustment
In addition to editorial changes, the main technical changes are as follows:
a) Added and modified terms and definitions (see Chapter 3, Chapter 3 of the:2010 edition);
b) Changed the method outline (see Chapter 4, Chapter 4 of the:2010 edition);
c) changed the sampler (see Chapter 5, Chapter 5 of the:2010 edition);
d) Changed the sample delivery pipeline (see Chapter 6, Chapter 5 of the:2010 edition);
e) Changed the cooler (see Chapter 7, Chapter 5 of the:2010 edition);
f) Delete reagents and materials, selection and handling of sample containers, collection of vapor samples, sampling volume, sample labeling, sample storage and transportation
Lose (see Chapter 6 and Chapter 7 of the:2010 edition):
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed and managed by China Electricity Council:
This document is drafted by: Xi'an Thermal Engineering Research Institute Co:, Ltd:, Rundian Energy Science and Technology Co:, Ltd:, Huaneng Wuhan Power Generation Co:, Ltd:
company:
The main drafters of this document: Liu Wei, Long Guojun, Huang Qian, Pan Jun, Zhang Weike, Wu Wenlong, Zhang Xiaoni, Liu Kai, Zeng Zhong, Tian Liu, Wu Lei,
Zhong Jie, Cao Jieyu, Tian Li, Xue Changgang, Xiong Weijun:
This document was first released in:1993, revised for the first time in:2001, and this is the second revision:
Sampling method of boiler steam
1 Scope
This document specifies the requirements and methods for the collection, transportation and cooling of samples for steam quality determination:
This document is applicable to the collection of steam samples of power plant boilers and industrial boilers: Other steam pipeline sampling can refer to this document:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 14976 Stainless Steel Seamless Steel Tubes for Fluid Transmission
DL/T 665 Acceptance Guidelines for Water Vapor Centralized Sampling and Analysis Devices
DL/T 752 Thermal Power Plant Dissimilar Steel Welding Technical Regulations
DL/T 869 Thermal Power Plant Welding Technical Regulations
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
Isokinetic sampling isokineticsampling
Sampling technique in which the steam sample enters the inlet of the sampler in exactly the same way as the flow rate and direction of the steam in the pipeline:
4 principles
This method describes the equipment, design principles, and procedures for collecting and delivering samples of saturated steam, superheated steam, and reheated steam, including
The selection and application of the sampling device, the size of the delivery pipe, the condensation requirements and the optimal flow rate make the steam sampling and delivery process representative and able to
Accurately reflect impurities such as dissolved chemical substances in steam, solid particles, and chemical substances adsorbed on solid particles:
Sampling systems include specially designed, manufactured and installed equipment such as samplers, transfer lines and coolers:
5 Sample collection
5:1 Isokinetic sampling should be used for steam collection (see Appendix A), so that the sample is representative, and the following should be noted:
a) The sampling system shall be designed according to the condition of equal velocity sampling under the condition of full load of the unit: In order to achieve the effect of isokinetic sampling, the
The sample flow rate should be adjusted accordingly according to the steam flow rate:
b) In order to prevent the moisture in the saturated steam from forming a water film containing impurities on the inner surface of the tube and entering the sampling tube, the sampling port should be installed in the
away from the pipe wall:
c) For the steam sampling system, the isokinetic sampler should be designed first, and then the isolation valve and sampling pipe from the sampler to the primary cooler should be designed and determined:
The design flow rate of the isokinetic sampler should meet the requirements of online chemical instruments and manual sampling at the same time, preferably 1000mL/min~
1200mL/min:
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14416-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 14416-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 14416-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 14416-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 14416-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14416-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|