GB/T 13469-2021 Translated English of Chinese Standard (GBT13469-2021): Economical operation for centrifugal, mixed flow and axial flow pump systems [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]www.ChineseStandard.net, 2021 M09 3 - 16 pages This Standard specifies the method for determination of the specific surface area of metallic powder. This Standard applies to the determination of the specific surface area of metallic powder. The determination range is 0.1 m2/g~1000 m2/g. The determination of the specific surface area of non-metallic powder and microporous materials may also refer to it for use. The specific surface area determined in this Standard is the total specific surface area of the powder, including any open specific surface area where nitrogen molecules can enter the powder body. It is different from the specific surface area measured by the air permeation method, which refers to the envelope surface area. |
Contents
| 3 | |
1 Scope | 5 |
3 Terms and Definitions | 6 |
5 Judgment and Evaluation Method of Economical Operation for Pump Systems | 11 |
6 Test Method for Economical Operation for Pump Systems | 14 |
7 EnergySaving Management Measures of Economical Operation for Pump Systems | 15 |
Common terms and phrases
according to Formula accuracy Add the requirements adopt axial flow pump Basic requirements Beijing calculated in accordance centrifugal pumps China commissioning and acceptance document economic flow rate economical operation requirements Edition efficiency limit value efficiency of motors energy efficiency standards energy-saving management measures equipment and units failure flow pump systems following requirements high-efficiency inlet and outlet instruments and meters ith load Judgment and evaluation Level-2 load changes measurement method measuring instruments meet the economical meet the following meet the requirements mixed flow pumps operating conditions operating efficiency operating uneconomical Operation for Centrifugal Operation for Pump parameter power consumption pressure gauge provisions of GB/T pump systems driven pumps and axial rated efficiency recording period Regularly check related energy efficiency relevant standards requirements for installation requirements in GB selection of equipment Shanghai speed regulating device suction pipe suction pipeline system meet technical conditions test methods unit is deemed Values of Energy