Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent
1994-12-06
1996-04-23
Nilson, Robert G.
Fluid handling
Processes
With control of flow by a condition or characteristic of a...
73199, 7386194, 137486, 1374875, G05D 706
Patent
active
055094341
ABSTRACT:
An apparatus and method for controlling and metering gas flowing through a pipeline is provided. The apparatus includes an orifice flow meter for accurately measuring the flow rate of gas through the pipeline within a certain range. The apparatus further includes a turbine flow meter which provides a measurement of the flow rate of the gas flowing through the pipeline over a broad range. A control circuit coupled to the turbine flow meter is provided for evaluating the flow rate to determine whether the flow rate is higher than a predetermined maximum value which can be recorded by the orifice flow meter or lower than a predetermined minimum value which can be recorded by the orifice flow meter. If the flow rate is higher than the predetermined maximum value, the control circuit generates a first voltage signal, if the flow rate is lower than the predetermined minimum value, the control circuit generates a second voltage signal. A frequency converter electrically coupled to the control circuit converts the voltage signals generated by the control circuit into an analog output current. A transducer electrically coupled to the frequency converter then converts the analog output current into a pneumatic signal which is communicated to a throttle valve pneumatically coupled to the transducer which partially closes in response to a pneumatic signal corresponding to the first voltage signal and which fully opens in response to a pneumatic signal corresponding to the second voltage signal.
REFERENCES:
patent: 3174504 (1965-03-01), Rosenbrock
patent: 3225785 (1965-12-01), Goike
patent: 3369561 (1968-02-01), Zimmerman
patent: 5152309 (1992-10-01), Twerdochlib
Halliburton Services Special Products Division brochure on Frequency Converters dated Sep. 1991.
Halliburton Flow Measurement Systems brochure on Gas Turbine Flow Meter dated Oct. 1993.
Boyd Charles L.
Stewart Joseph A.
Halliburton Company
Imwalle William M.
Morico Paul R.
Nilson Robert G.
LandOfFree
Apparatus and method for controlling and metering the flow of ga does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for controlling and metering the flow of ga, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling and metering the flow of ga will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2302516