1、Manual of PetroleumMeasurement StandardsChapter 22.3Testing Protocol for Flare Gas MeteringANSI/API MPMS CHAPTER 22.3FIRST EDITION, AUGUST 2015Special NotesAPI publications necessarily address problems of a general nature. With respect to particular circumstances, local, state, and federal laws and
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16、org.iiiContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Normative References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、. . . . . . . . . . . . . . . . . . . . . . . . . . 13 Terms and Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Field of Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Parameter Variations Affecting Device Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Mandatory Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36.1 Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36.2 Test Installation . . . . . . . . . . . .
20、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46.3 Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86.
21、4 Baseline Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86.5 Installation Effects Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . 86.6 Special Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106.7 Testing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Test Facility Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107.1 Audit Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107.2 Lab/Facility Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Uncertainty Analysis and Calculation. . .
25、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118.1 Test Facility Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118.2 Device Uncertainty . . . .
26、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118.3 How to Calculate Uncertainty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118.4 Pre
27、sentation of Test Report Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Test Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、 . . . . . 119.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119.2 Test Facility Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、 . . . . . . . . . . . . . . . . . . . . . . . 119.3 Test Meter Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129.4 Description of the Full Test Matrix And Results . . . . . . . . . . . . . . . . . .
30、. . . . . . . . . . . . . . . . . . . . . . . . . . . . 129.5 Sample Meter Test Reporting Form. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Annex A (informative) Samples for Summary and Detailed Data Reports . . . . . . . . . . .
31、. . . . . . . . . . . . . . . . . . . 14Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Figures1 Test Program Piping Configuration. . . . . . . . . . . . . . . . . . . . . .
32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Elbow in Plane Piping Layout with a USM in its Preferred Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Elbow out of Plane Piping Layout with a USM in its Preferred Position. . . . . . . . . . . .
33、. . . . . . . . . . . . . . . . 9X Picture of Meter Under Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Y Baseline Meter Test Piping Arrangement (example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、. . . . . . . . . . . . . . 18Z Baseline Meter Test Piping (example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18AA Baseline Meter Test Result Summary (example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35、. . . . . . . . . . 19AB Installation Effect Test Summary2 Elbows Out of Plane (example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20TablesX Reference Test Equipment Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
36、7Y Baseline Meter Test Summary (example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19vIntroductionThis document defines the testing and reporting protocols for a flare gas meter within a Flare Flow Meter System (FFMS). This protocol is de
37、signed to supply industry with a comparable description of the capabilities of flare gas meters for gaseous fluid flow measurement. The following are objectives of this Testing Protocol. Provide information about relative performance characteristics of the flare gas meter under a standardized testin
38、g protocol over an expected operating range with a standardized reporting format. (See 6.1 for determination of the expected operating range.) Facilitate both the understanding and the introduction of new technologies. Provide a standardized vehicle for manufacturers to validate the meters performan
39、ce. Quantify the uncertainty of these devices and define the operating and installation conditions for which the stated uncertainties apply.To accomplish these objectives, in addition to the base testing requirements defined in this document, the end user should define any application specific requi
40、rements not covered by the base testing requirements such as the following. Expected operating range of the meter where this exceeds the base testing requirement operating range. Upstream flow disturbances not addressed by the base testing requirements. Criteria needed to comply with regulatory requ
41、irements.When specifying additional testing requirements, the end user should insure that all parameters affecting the meters performance are identified, but not limited to, items described in Section 6.The facility selected to perform the tests has to be able to correlate the test fluid to the flui
42、ds to be measured at the expected process conditions.Examples of flare gas meters covered in this standard include, but are not limited to differential pressure flow meters, optical meters, thermal flow meters, ultrasonic flare meters, vortex shedding meters.If a meter has been tested under another
43、API MPMS Chapter 22 testing protocol that covers the entire expected operating range for this application, testing the influence parameters listed in Section 5 and the ranges defined in 6.4, then additional testing is optional. Reporting and testing protocols for test facilities are included to ensu
44、re that the performance characteristics of each meter are compared with identical conditions as set forth in this standard.vi1Testing Protocol for Flare Gas Metering1 ScopeThe scope of the standard is to describe a testing protocol for flare gas meters. This includes a discussion of the testing to b
45、e performed, how the test data should be analyzed, and how an uncertainty is determined from the testing of the meter. The scope does not include the general guidelines to flare gas metering that are covered under MPMSChapter 14.10.2 Normative ReferencesThe following referenced documents are indispe
46、nsable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.API Manual of Petroleum Measurement Standards (MPMS), Chapter 14.3 Part 1, Concentric, Square-Ed
47、ged Orifice MetersPart 1: General Equations and Uncertainty GuidelinesISO/IEC Guide 98-3:2008 1, Uncertainty of MeasurementPart 3: Guide to the Expression Uncertainty in Measurement (GUM: 1995)ISO/IEC 17025; 2005, General requirements for the competence of testing and calibration laboratories3 Terms
48、 and DefinitionsFor the purposes of this document, the following definitions apply. 3.1accuracyThe ability of a measurement instrument to indicate values closely approximating the true value of the quantity measured. 3.2adiabatic expansionExpansion of gas that occurs without loss or gain of heat.3.3
49、calibrationThe process or procedure of adjusting an instrument, such as a meter, so that its indication or registration is in satisfactorily close agreement with a reference standard.3.4DThe published inside pipe diameter.3.5dynamic performanceA general expression for the relationship between the volume or mass registered by a meter and the true value after a change in flow rate, flowing temperature or flowing pressure.1International Electrotechnical Commission, 3, rue de Varemb, P.O. Box 131, CH-1211, Geneva 20, Switzerland, www.iec.ch.2 API MPMS CHAPTER 22.33.6dynamic respo
