超音波计量设备管线设计标准化-APMP.ppt

APMP TCFF Country ReportCMS/ITRI, Chinese Taipei
Chun-Min Su, .
Dec. 5, 2011
Kobe, Japan
2
Contents
Stabilization of Gas Temperature for Low Pressure Gas Flow Facilities – Bell Provers
Study on the Method of Calibration for the High Pressure Gas Flow Facility (with Sonic Nozzle as the Working Standard)
3
Low P. Gas Flow Facility - Bell Prover
60 L Bell
(4-100) L/minU = %
600 L Bell
(20-1000) L/minU = %
Comparison between the Bell Provers: Before
Measures for Gas Temp. Stabilization
5
Water Bath
Heat Exchanger
Heat Exchanger
Airflow Shield
Thermal Isolation Cloth
Vpr1
VB1
Pm
Tm
Nozzle
Water Bath
Heat Exchanger
Air Tank
P
M
Heat Exchanger
Diverter Valve
Schematic of the Bell Prover
Comparison between the Bell Provers: After
8
Contents
Stabilization of Gas Temperature for Low Pressure Gas Flow Facilities – Bell Provers
Study on the Method of Calibration for the High Pressure Gas Flow Facility (with Sonic Nozzle as the Working Standard)
9
Weighing + Nozzle
(15 to 18000) m3/hU = %
High Pressure Air Flow Facility @ CMS
MUT
Acoustic filter
600 cm (~ 40D)
95 cm
110 cm
pact nozzle bank - for back pressure adjustment
MUT
The nozzle bank is firstly calibrated by gravimetric method with a gyroscope weighing system. pact nozzle bank is installed at the downstream of the pipeline for calibration flow and pressure adjustment.
In our high pressure air flow facility, an pact nozzle bank is used to calibrate meters from customers.