17.120.10 封闭管道中流量的测量 标准查询与下载

ISO 5167-5:2022 用插入圆形横截面管道中的压差装置测量流体流量.第5部分:锥形流量计

This document specifies the geometry and method of use (installation and operating conditions) of cone meters when they are inserted in a conduit running full to determine the flow rate of the fluid flowing in the conduit. As the uncertainty of an uncalibrated cone meter might be too high for a particular application, it might be deemed essential to calibrate the flow meter in accordance with Clause 7. This document also provides background information for calculating the flow rate and is applicable in conjunction with the requirements given in ISO 5167-1. This document is applicable only to cone meters in which the flow remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. Uncalibrated cone meters can only be used within specified limits of pipe size, roughness, β, and Reynolds number, Re. This document is not applicable to the measurement of pulsating flow. It does not cover the use of uncalibrated cone meters in pipes sized less than 50 mm or more than 500 mm, or where the pipe Reynolds numbers are below 8 × 104 or greater than 1,2 × 107. A cone meter is a primary device which consists of a cone-shaped restriction held concentrically in the centre of the pipe with the nose of the cone upstream. The design of cone meter defined in this document has one or more upstream pressure tappings in the wall, and a downstream pressure tapping positioned in the back face of the cone with the connection to a differential pressure transmitter being a hole through the cone to the support bar, and then up through the support bar. Alternative designs of cone meters are available; however, at the time of writing, there is insufficient data to fully characterize these devices, and therefore, these meters shall be calibrated in accordance with Clause 7.

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 5: Cone meters

22/30404754 DC BS ISO 24460 封闭管道中流体流量的测量 放射性示踪剂方法

BS ISO 24460. Measurement of fluid flow rate in closed conduits. Radioactive Tracer Methods

BS EN ISO 9300:2022 通过临界流量喷嘴测量气体流量

1   Scope This document specifies the geometry and method of use (installation in a system and operating conditions) of critical flow nozzles ( CFNs ) used to determine the mass flow rate of a gas flowing through a system basically without the need to calibrate the CFN . It also gives the information necessary for calculating the flow rate and its associated uncertainty . This document is applicable to nozzles in which the gas flow accelerates to the critical velocity at the minimum flowing section, and only where there is steady flow of single-phase gas. When the critical velocity is attained in the nozzle , the mass flow rate of the gas flowing through the nozzle is the maximum possible for the existing inlet condition, while the CFN can only be used within specified limits, e.g. the CFN throat to inlet diameter ratio and Reynolds number . This document deals with the toroidal- and cylindrical- throat CFNs for which direct calibration experiments have been made in sufficient number to enable the resulting coefficients to be used with certain predictable limits of uncertainty .

Measurement of gas flow by means of critical flow nozzles

KS A 0612-2022 通过插入完全运行的圆形横截面管道中的孔板、喷嘴和文丘里管来测量流体流量

Measurement of fluid flow by means of orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full

BS EN ISO 5167-4:2022 通过插入完全运行的圆形横截面管道中的压差装置来测量流体流量 文丘里管

What is ISO 5167-4 - Measurement of fluid flow with venturi tubes about? This international standard is the fourth in a six-part series on measuring fluid flow using pressure differential devices. ISO 5167-4 deals with venturi tubes and has been revised to implement minor corrections, harmonize changes across the series and achieve consistency with the Guide to Uncertainty of Measurement (GUM). Who is ISO 5167-4 - Measurement of fluid flow with venturi tubes for? Manufacturers of pressure differential devices Those working with this equipment in the natural gas industry, from chief mechanical engineer or chief metrologist to operators and technicians Anyone measuring other gases or liquids (Newtonian fluids) including e.g. hydrogen or carbon dioxide What does ISO 5167-4 - Measurement of fluid flow with venturi tubes cover? This part of ISO 5167 specifies the geometry and method of use (installation and operating conditions) of Venturi tubes when they are inserted in a conduit running full to determine the flowrate of the fluid flowing in the conduit. It also provides background information for calculating the flowrate and is applicable in conjunction with the requirements given in BS EN ISO 5167-1 . ISO 5167-4 applies only to Venturi tubes in which the flow remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. In addition, Venturi tubes can only be used uncalibrated in accordance with this standard within specified limits of pipe size, roughness, diameter ratio and Reynolds number, or alternatively they can be used across their calibrated range. ISO 5167-4 de...

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full. Venturi tubes (ISO 5167-4:2022)

BS EN ISO 5167-2:2022 通过插入完全运行的圆形横截面管道中的压差装置来测量流体流量 孔板

What is ISO 5167-2 - Measurement of fluid flow with orifice plates about? ISO 5167-2 is the second in a six-part series on measuring fluid flow using pressure differential devices. BS EN ISO 5167-2:2022 deals with orifice plates and has been revised to implement minor corrections, harmonize changes across the series and achieve consistency with the Guide to Uncertainty of Measurement (GUM). Who is ISO 5167-2 - Measurement of fluid flow with orifice plates for? Manufacturers of pressure differential devices Those working with this equipment in the natural gas industry, from chief mechanical engineer or chief metrologist to operators and technicians Anyone measuring other gases or liquids (Newtonian fluids) including e.g. hydrogen or carbon dioxide What does ISO 5167-2 - Measurement of fluid flow with orifice plates cover? This part of ISO 5167 specifies the geometry and method of use (installation and operating conditions) of orifice plates when they are inserted in a conduit running full to determine the flowrate of the fluid flowing in the conduit. It also provides background information for calculating the flowrate and is applicable in conjunction with the requirements given in BS EN ISO 5167-1 . ISO 5167-2 applies to primary devices having an orifice plate used with flange pressure...

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full. Orifice plates

BS EN ISO 5167-1:2022 通过插入完全运行的圆形横截面管道中的压差装置来测量流体流量 一般原则和要求

What is ISO 5167-1 - Measurement of fluid flow about? ISO 5167-1 is the international standard is the first in a six-part series on measuring fluid flow using pressure differential devices. ISO 5167-1:2022 deals with general principles and requirements and has been revised to implement minor corrections, harmonize changes across the series and achieve consistency with the Guide to Uncertainty of Measurement (GUM). Who is ISO 5167-1 - Measurement of fluid flow for? Manufacturers of pressure differential devices Those working with this equipment in the natural gas industry, from chief mechanical engineer or chief metrologist to operators and technicians Anyone measuring other gases or liquids (Newtonian fluids) including e.g. hydrogen or carbon dioxide What does ISO 5167-1 - Measurement of fluid flow cover? This part of ISO 5167 defines terms and symbols and establishes the general principles for methods of measurement and computation of the flowrate of fluid flowing in a conduit by means of pressure differential devices (orifice plates, nozzles, Venturi tubes, cone meters, and wedge meters) when they are inserted into a circular cross-section conduit running full. ISO 5167-1 also specifies the general requirements for methods of measurement, installation an...

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full. General principles and requirements (ISO 5167-1:2022)

EN ISO 9300:2022 用临界流量文丘里喷嘴测定气体流量

This document specifies the geometry and method of use (installation in a system and operating conditions) of critical flow nozzles (CFNs) used to determine the mass flow rate of a gas flowing through a system basically without the need to calibrate the CFN. It also gives the information necessary for calculating the flow rate and its associated uncertainty. This document is applicable to nozzles in which the gas flow accelerates to the critical velocity at the minimum flowing section, and only where there is steady flow of single-phase gas. When the critical velocity is attained in the nozzle, the mass flow rate of the gas flowing through the nozzle is the maximum possible for the existing inlet condition, while the CFN can only be used within specified limits, e.g. the CFN throat to inlet diameter ratio and Reynolds number. This document deals with the toroidal- and cylindrical-throat CFNs for which direct calibration experiments have been made in sufficient number to enable the resulting coefficients to be used with certain predictable limits of uncertainty.

Measurement of gas flow by means of critical flow nozzles (ISO 9300:2022)

EN ISO 5167-1:2022 用插入圆截面管道中的压差装置测量流体流量.第1部分:一般原理和要求

This document defines terms and symbols and establishes the general principles for methods of measurement and computation of the flow rate of fluid flowing in a conduit by means of pressure differential devices (orifice plates, nozzles, Venturi tubes, cone meters, and wedge meters) when they are inserted into a circular cross-section conduit running full. This document also specifies the general requirements for methods of measurement, installation and determination of the uncertainty of the measurement of flow rate. ISO 5167 (all parts) is applicable only to flow that remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. It is not applicable to the measurement of pulsating flow.

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2022)

EN ISO 5167-2:2022 圆截面管道中用压差装置测量流体流量.第2部分:节流孔板

This document specifies the geometry and method of use (installation and operating conditions) of orifice plates when they are inserted in a conduit running full to determine the flow rate of the fluid flowing in the conduit. This document also provides background information for calculating the flow rate and is applicable in conjunction with the requirements given in ISO 5167‑1. This document is applicable to primary devices having an orifice plate used with flange pressure tappings, or with corner pressure tappings, or with D and D/2 pressure tappings. Other pressure tappings such as “vena contracta” and pipe tappings are not covered by this document. This document is applicable only to a flow which remains subsonic throughout the measuring section and where the fluid can be considered as single phase. It is not applicable to the measurement of pulsating flow[1]. It does not cover the use of orifice plates in pipe sizes less than 50 mm or more than 1 000 mm, or where the pipe Reynolds numbers are below 5 000.

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 2: Orifice plates (ISO 5167-2:2022)

EN ISO 5167-4:2022 用插入圆截面管道中的压差装置测量流体流量.第4部分:文杜利管

This document specifies the geometry and method of use (installation and operating conditions) of Venturi tubes[1] when they are inserted in a conduit running full to determine the flow rate of the fluid flowing in the conduit. This document also provides background information for calculating the flow rate and is applicable in conjunction with the requirements given in ISO 5167-1. This document is applicable only to Venturi tubes in which the flow remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. In addition, Venturi tubes can only be used uncalibrated in accordance with this standard within specified limits of pipe size, roughness, diameter ratio and Reynolds number, or alternatively they can be used across their calibrated range. This document is not applicable to the measurement of pulsating flow. It does not cover the use of uncalibrated Venturi tubes in pipes sized less than 50 mm or more than 1 200 mm, or where the pipe Reynolds numbers are below 2 × 105. This document deals with the three types of classical Venturi tubes: a) “as cast”; b) machined; c) fabricated (also known as “rough-welded sheet-iron”). A Venturi tube consists of a convergent inlet connected to a cylindrical throat which is in turn connected to a conical expanding section called the divergent section (or alternatively the diffuser). Venturi nozzles (and other nozzles) are dealt with in ISO 5167-3. NOTE In the USA the classical Venturi tube is sometimes called the Herschel Venturi tube. [1] In the USA the classical Venturi tube is sometimes called the Herschel Venturi tube.

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes (ISO 5167-4:2022)

ISO 5167-1:2022 用插入圆形横截面管道中的压差装置测量流体流量第1部分:一般原则和要求

This document defines terms and symbols and establishes the general principles for methods of measurement and computation of the flow rate of fluid flowing in a conduit by means of pressure differential devices (orifice plates, nozzles, Venturi tubes, cone meters, and wedge meters) when they are inserted into a circular cross-section conduit running full. This document also specifies the general requirements for methods of measurement, installation and determination of the uncertainty of the measurement of flow rate. and where the fluid can be considered as single-phase. It is not applicable to the measurement of pulsating flow.

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 1: General principles and requirements

ISO 5167-2:2022 用插入圆形横截面管道中的压差装置测量流体流量第2部分:孔板

This document specifies the geometry and method of use (installation and operating conditions) of orifice plates when they are inserted in a conduit running full to determine the flow rate of the fluid flowing in the conduit. This document also provides background information for calculating the flow rate and is applicable in conjunction with the requirements given in ISO 5167-1. This document is applicable to primary devices having an orifice plate used with flange pressure tappings, or with corner pressure tappings, or with D and D/2 pressure tappings. Other pressure tappings such as “vena contracta” and pipe tappings are not covered by this document. This document is applicable only to a flow which remains subsonic throughout the measuring section and where the fluid can be considered as single phase. It is not applicable to the measurement of pulsating flow[1]. It does not cover the use of orifice plates in pipe sizes less than 50 mm or more than 1000 mm, or where the pipe Reynolds numbers are below 5000.

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 2: Orifice plates

ISO 5167-4:2022 用插入圆形横截面管道中的压差装置测量流体流量.第4部分:文丘里管

This document specifies the geometry and method of use (installation and operating conditions) of Venturi tubes1) when they are inserted in a conduit running full to determine the flow rate of the fluid flowing in the conduit. This document also provides background information for calculating the flow rate and is applicable in conjunction with the requirements given in ISO 5167-1. This document is applicable only to Venturi tubes in which the flow remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. In addition, Venturi tubes can only be used uncalibrated in accordance with this standard within specified limits of pipe size, roughness, diameter ratio and Reynolds number, or alternatively they can be used across their calibrated range. This document is not applicable to the measurement of pulsating flow. It does not cover the use of uncalibrated Venturi tubes in pipes sized less than 50 mm or more than 1200 mm, or where the pipe Reynolds numbers are below 2 × 105. This document deals with the three types of classical Venturi tubes: a) “as cast”; b) machined; c) fabricated (also known as “rough-welded sheet-iron”). A Venturi tube consists of a convergent inlet connected to a cylindrical throat which is in turn connected to a conical expanding section called the divergent section (or alternatively the diffuser). Venturi nozzles (and other nozzles) are dealt with in ISO 5167-3. NOTE In the USA the classical Venturi tube is sometimes called the Herschel Venturi tube.

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 4: Venturi tubes

ISO 9300:2022 用临界流量喷嘴测量气体流量

This document specifies the geometry and method of use (installation in a system and operating conditions) of critical flow nozzles (CFNs) used to determine the mass flow rate of a gas flowing through a system basically without the need to calibrate the CFN. It also gives the information necessary for calculating the flow rate and its associated uncertainty. This document is applicable to nozzles in which the gas flow accelerates to the critical velocity at the minimum flowing section, and only where there is steady flow of single-phase gas. When the critical velocity is attained in the nozzle, the mass flow rate of the gas flowing through the nozzle is the maximum possible for the existing inlet condition, while the CFN can only be used within specified limits, e.g. the CFN throat to inlet diameter ratio and Reynolds number. This document deals with the toroidal- and cylindrical-throat CFNs for which direct calibration experiments have been made in sufficient number to enable the resulting coefficients to be used with certain predictable limits of uncertainty.

Measurement of gas flow by means of critical flow nozzles

DB32/T 4290-2022 特种设备用流量计（壳体）安全技术条件

本文件规定了特种设备用流量计（壳体）的分类、材料、设计、制造、检验和试验、标记及完工资料，并明确了特种设备用流量计（壳体）设计及制造单位的资质与职责。 本文件适用于特种设备用流量计（壳体）（包括《锅炉安全技术规程》中锅炉范围内管道和《特种设备目录》中压力管道定义范围内管道上使用的金属制流量计（壳体））。

Safety technical requirements for flowmeter (housing) for special equipment

GSO ISO 17089-1:2022 封闭管道中流体流量的测量 气体超声波仪表 第1部分：贸易交接和分配测量仪表

This document specifies requirements and recommendations for ultrasonic gas flowmeters (USMs), which utilize the transit time of acoustic signals to measure the flow of single phase homogenous gases in closed conduits. This document applies to transit time ultrasonic gas flowmeters used for custody transfer and allocation metering, such as full-bore, reduced-area, high-pressure, and low-pressure meters or any combination of these. There are no limits on the minimum or maximum sizes of the meter. This document can be applied to the measurement of almost any type of gas, such as air, natural gas, and ethane. Included are flow measurement performance requirements for meters of two accuracy classes suitable for applications such as custody transfer and allocation measurement. This document specifies construction, performance, calibration, diagnostics for meter verification, and output characteristics of ultrasonic meters for gas flow measurement and deals with installation conditions. NOTE It is possible that national or other regulations apply which can be more stringent than those in this document.

Measurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurement

GSO ISO 7194:2022 封闭管道中流体流量的测量 通过电流计或皮托管在圆形管道中旋流或不对称流动条件下测量流量的速度面积法

ISO 7194:2008 specifies velocity-area methods for measuring flow in swirling or asymmetric flow conditions in circular ducts by means of current-meters of Pitot static tubes. ISO 7194:2008 specifies the measurements required, the precautions to be taken, the corrections to apply, and describes the additional uncertainties which are introduced when a measurement in asymmetric or swirling flow has to be made. Only flows with a negligible radial component are considered, however. Furthermore, it is not possible to make a measurement in accordance with ISO 7194:2008 if, at any point in the measuring cross-section, the local velocity makes an angle of greater than 40° with the axis of the duct, or where the index of asymmetry Y (defined within ISO 7194:2008) is greater than 0,15. ISO 7194:2008 deals only with instruments for measuring local velocity as defined in ISO 3354 and ISO 3966. If Pitot static tubes are used, ISO 7194:2008 applies only to flows where the Mach number corresponding to local velocities does not exceed 0,25.

Measurement of fluid flow in closed conduits — Velocity-area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current-meters or Pitot static tubes

GSO ISO 2975-6:2022 封闭管道中水流的测量 示踪剂方法 第6部分：使用非放射性示踪剂的渡越时间法

Tracer methods apply to flow measurement in conduits into which a solution can be injected and those cases where effective mixing of this solution with the water flowing in the conduit can be achieved, this last condition being fundamental. Describes the transit time method using non-radioactive tracers for the measurement of water flow rate in closed conduits.

Measurement of water flow in closed conduits — Tracer methods — Part 6: Transit time method using non-radioactive tracers

GSO ISO 3966:2022 封闭管道中流体流量的测量 使用皮托静压管的速度面积法

This document specifies a method for the determination in a closed conduit of the volume rate of flow of a regular flow a) of a fluid of substantially constant density or corresponding to a Mach number not exceeding 0,25, b) with substantially uniform stagnation temperature across the measuring cross-section, c) running full in the conduit, and d) under steady flow conditions. In particular, it deals with the technology and maintenance of Pitot static tubes, with the calculation of local velocities from measured differential pressures and with the computation of the flow rate by velocity integration.

Measurement of fluid flow in closed conduits — Velocity area method using Pitot static tubes