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GBZ35717-2017 English PDF

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US$1039.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GBZ35717-2017: Discharge measurement for hydraulic turbines, storage pumps and pump-turbines -- Ultrasonic transit-time method
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/Z 35717-2017	1039	Add to Cart	5 days	Discharge measurement for hydraulic turbines, storage pumps and pump-turbines -- Ultrasonic transit-time method	Obsolete

Similar standards

GB/T 14478 GB/T 15468 GB/T 14478 GB/T 28572 GB/T 22581 GB/T 35717

Basic data

Standard ID: GB/Z 35717-2017 (GB/Z35717-2017)
Description (Translated English): Discharge measurement for hydraulic turbines, storage pumps and pump-turbines -- Ultrasonic transit-time method
Sector / Industry: National Standard
Classification of Chinese Standard: K55
Classification of International Standard: 27.140
Word Count Estimation: 26,217
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Regulation (derived from): National Standards Bulletin 2017 No. 32
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

GBZ35717-2017: Discharge measurement for hydraulic turbines, storage pumps and pump-turbines -- Ultrasonic transit-time method

---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.
Discharge measurement for hydraulic turbines, storage pumps and pump-turbines - Ultrasonic transit-time method ICS 27.140 K55 People's Republic of China national standardization of technical guidance documents Turbine, storage pump and pump turbine flow measurement Ultrasound transmission time method Dischargemeasurementforhydraulicturbines, storagepumpsand 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 symbol 3 5 measurement principle 3 5.1 Fundamentals 5.2 Ultrasound propagation time measurement 4 5.3-channel axial velocity calculation 4 5.4 Traffic Calculation 5 6 test methods and calibration 6 6.1 Installation Location Requirements and Channel Configuration 6 6.2 transducer installation and geometric parameter measurement 8 6.3 host functional requirements and testing 8 6.4 Third Party Calibration and Period Verification 7 Measurement Uncertainty 9 Appendix A (Normative) Channel height and weight coefficient 11 Appendix B (Normative) Flow rate representative reference data 14 Appendix C (Normative) Geometric measurement of circular flow measurement device 16 Appendix D (Normative) Uncertainty assessment method 18 Appendix E (Informative) Sound velocity in pure water 20 References 21

Foreword

This instructional document has been drafted in accordance with the rules given in GB/T 1.1-2009. This guidance document is proposed by China Electrical Equipment Industry Association. This Guidance Document is organized by the National Committee for Standardization of Hydraulic Turbines (SAC/TC175). The guidance of technical documents drafting unit. China Institute of Metrology, State Grid Electric Power Research Institute of Gansu Province, China Water Lee Hydropower Research Institute, China Yangtze Power Co., Ltd., Harbin Institute of Electrical Engineers, Dongfang Electric Group Dongfang Electric Co., Ltd. Division, Guodian Science and Technology Research Institute Chengdu Electric Power Technology Branch, Ministry of Water Resources Institute of Rural Electrification, Tsinghua University, Beijing City Hydrological Station, Ya Qijiang River Basin Hydropower Development Co., Ltd., Nanjing Shen Rui Electric System Control Co., Ltd., Beijing Chang Min Technology Co., Ltd. Qingdao million water technology Co., Ltd., Nanjing NARI Group Co., Ltd., Tangshan Instrument Instrument Co., Ltd., Shenzhen Jianheng Measurement and Control Co., Ltd., Kaifeng City Water Large flow measurement Technology Co., Ltd., Beijing City Lake Management Office, China Construction Group Northwest Survey and Design Institute Co., Ltd., State Power Dadu River Maintenance Installation Co., Ltd., Xi'an University of Technology. The main drafters of this technical document are Hu Heming, Dong Kaisong, Liu Xiuliang, Meng Tao, Pan Luoping, Li Youping, Zhao Yue, Yan Zheng, Zhang Haiku, Xu Wei, Zhu Dejun, Yang Zhuo, Zhao Yao, Zhang Liang, Liu Dengfeng, Xu Chunrong, Pu Qihuan, Leng Jiqiang, Xia Zhou, Zhang Lixin, Xiao Cong, Miao Yusheng, Li Guoshun, Yuan Lianjun, Ma Yue, Zheng Xiaobo, Li Zhen, Shen Wei Cheng, Zhao Wei, Zhen Wenxi, with Huan Zhen, Liu Shiqi. Turbine, storage pump and pump turbine flow measurement Ultrasound transmission time method

1 Scope

This guidance is given in the technical documents of turbines, storage pumps and pump turbines ultrasonic flow measurement time method, including measurement of the original Management, test methods and calibration, measurement uncertainty. This guideline is applicable to the on-site flow measurement of water turbines, storage pumps and pump turbines. The runners are pressurized runners and the cross section is Circular or rectangular, diameter or equivalent diameter of not less than 0.8m; does not apply to turbine, energy storage pump and pump turbine model test flow measuring. This guideline is applicable to the Ultrasonic Propagation Time Measurement Unit (hereinafter referred to as the "Flow Measurement Unit" Device) flow measurement, does not apply to the use of clamp-type ultrasonic flowmeter flow measurement.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. JZF1358-2012 non-real-current method calibration DN1000 ~ DN15000 liquid ultrasonic flowmeter calibration specification IEC 60041-1991 Turbine, storage pump and pump turbine hydraulic field acceptance test (Fieldacceptanceteststo determinethehydraulicperformanceofhydraulicturbines, storagepumpsandpump-turbines) ISO 12242.2012 Determination of fluid flow in closed conduits Liquid Ultrasonic Propagation Time Method (Measurement Measurement Fluid inclosedconduits-Ultrasonictransit-timemetersforliquid) ASMEPTC18-2011 Hydraulic Turbines and Pump-Turbines Performance Test Specification PerformanceTestCodes)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Ultrasonic transmission time method ultrasonictransit-timemethod Using the difference between ultrasonic propagation time in the fluid and the countercurrent propagation time, the flow velocity is obtained, which is obtained by multiplying the flow velocity by the area Method of traffic. 3.2 Ultrasonic transducer ultrasonictransducer In the role of electrical signals can produce ultrasonic output, and ultrasonic signals can be converted into electrical signals of the device. 3.3 Internal Transducer build-intransducer The use of welding, bolts and other ways fixed on the inner wall of the ultrasonic transducer transducer. Note. The internal transducer is also referred to as an enclosed transducer. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GBZ35717-2017_English be delivered?

Answer: Upon your order, we will start to translate GBZ35717-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GBZ35717-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GBZ35717-2017_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+ countries

Question 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 Sales@ChineseStandard.net. 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.