| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Flow measurement device | US44625 | 1987-05-01 | US4790194A | 1988-12-13 | James C. Bellows; Michael Twerdochlib |
| Fluid flow is determined for a large flow pipe based upon differential pressure across an orifice in the pipe having a known cross-sectional area. In one form, the orifice is variable and adjusted in response to differential pressure so as to maintain differential pressure at a constant value. Flow is determined directly from orifice area. The orifice may be a part of a closed loop flow measurement system which responds to differential pressure changes to adjust orifice area. Various differential pressure settings may be used to accommodate selected back pressures in the flow pipe. | ||||||
| 122 | Flow sensor with extended low flow range | US447509 | 1982-12-07 | US4459860A | 1984-07-17 | Ronald B. Walters |
| In a flow sensing device in which flow is measured by the linear displacement of a moveable bobbin within a throat, the bobbin contains a cylinder and piston arrangement, with the piston linked to the same linear displacement sensing device as the bobbin. Fluid pressures upstream and downstream of a calibrated orifice parallel to the throat, is applied to opposite ends of the piston. Low flow rates are measured by the displacement of the piston, with movement of the bobbin together with the piston taking over the flow sensing function at higher flow rates. | ||||||
| 123 | Fluid pressure gauge | US45928165 | 1965-05-27 | US3400588A | 1968-09-10 | O'CONNOR WARD F |
| 124 | Multi-range fluid flow measuring apparatus | US85128059 | 1959-11-06 | US3037384A | 1962-06-05 | GOOD LOUIS G |
| 125 | Meter apparatus | US50639931 | 1931-01-03 | US1979607A | 1934-11-06 | DIEHL JOHN C |
| 126 | Orifice meter | US30067228 | 1928-08-20 | US1924125A | 1933-08-29 | LINDERMAN JR GARRETT B |
| 127 | newark | US1595063D | US1595063A | 1926-08-10 | ||
| 128 | DIAGNOSTIC SYSTEM, DIAGNOSTIC METHOD, DIAGNOSTIC PROGRAM, AND FLOW RATE CONTROLLER | US15918871 | 2018-03-12 | US20180266865A1 | 2018-09-20 | Kazuya Shakudo; Kentaro Nagai; Kazuhiro Matsuura |
| The present invention intends to more accurately diagnose a function of a flow rate sensor regardless of a variation in measurement ambient condition. The present invention includes: a flow rate sensor for measuring the flow rate of fluid; a correction part adapted to measure an output value of the flow rate sensor or a value related to the output value (hereinafter collectively referred to as an “output-related value”), relates the measured output-related value and a corresponding measurement ambient condition to each other, and in accordance with the measurement ambient condition in measurement data, correct the output-related value or a reference value that is predetermined in order to determine whether the output-related value is normal; and a diagnostic part adapted to compare the output-related value and the reference value on the basis of a correction result by the correction part and correct the function of the flow rate sensor. | ||||||
| 129 | DIFFERENTIAL PRESSURE FLOW METER, EXHAUST GAS ANALYSIS DEVICE AND FLOW RATE MEASUREMENT METHOD | US15659282 | 2017-07-25 | US20180164185A1 | 2018-06-14 | Shun FUKAMI |
| In order to make highly accurate flow rate measurements over a broad range, the present invention provides a differential pressure flow meter that detects differential pressures in a fluid body flowing along a flow path, and calculates a flow rate of the fluid body from those differential pressures, and that includes at least two differential pressure detecting portions that have mutually different measurement ranges. | ||||||
| 130 | MULTIPHASE FLOW METERS AND RELATED METHODS | US15570497 | 2016-04-29 | US20180143052A1 | 2018-05-24 | Cheng-Gang Xie; Baptiste Germond; Guillaume Jolivet |
| Multiphase flow meters and related methods are disclosed herein. An example apparatus includes an inlet manifold; an outlet manifold, first and second flow paths coupled between the inlet and outlet manifolds; and an analyzer to determine a flow rate of fluid flowing through the first and second flow paths based on a parameter of the fluid flowing through the first flow path. | ||||||
| 131 | Flow measurement probe with pitot tube and thermal flow measurement | US14501571 | 2014-09-30 | US09804011B2 | 2017-10-31 | David Russell Mesnard; Gregory Robert Strom; Nathaniel Kirk Kenyon |
| A flow measurement probe includes an elongate probe having an averaging pitot tube with a plurality of upstream and downstream openings arranged along a length of the elongate probe, and a thermal flow measurement sensor coupled to the elongate probe. A method of measuring fluid flow rate in a process includes calculating a flow rate of the fluid using differential pressure in upstream and downstream openings of an averaging pitot tube in an elongate probe when the differential pressure is at least a defined measurement threshold, and calculating the flow rate of the fluid with a thermal mass flow sensor coupled to the flow measurement probe when the differential pressure is less than the defined measurement threshold. | ||||||
| 132 | PRODUCTION OF HYDROCARBONS WITH METRIC COUNTER | US15514322 | 2014-09-25 | US20170276529A1 | 2017-09-28 | Cecile COUDROY; Jean Paul COUPUT; Renaud CAULIER; Vincent ARENDO |
| An improved solution for estimating the flow rate of a fluid in a line of a hydrocarbon production installation, during production. Systems and methods for producing hydrocarbons on a line of a hydrocarbon production installation can include at least two devices adapted each for providing an estimate of the flow rate of a fluid in the line based on respective data. The devices include at least one metric counter, and the data relative to the provision of an estimate of the flow rate by the metric counter include a measurement done by at least one sensor of the metric counter on the fluid. Further, data can be determined relative to the provision of an estimate of the flow rate by the devices, and a DVR process involving the determined data, the reconciliation being conditioned by at least a substantial equality between the estimates of the flow rate of the fluid. | ||||||
| 133 | Calibration method and flow rate measurement method for flow rate controller for gas supply device | US13813219 | 2011-06-28 | US09638560B2 | 2017-05-02 | Masaaki Nagase; Nobukazu Ikeda; Yohei Sawada; Tooru Hirai; Kazuyuki Morisaki; Kouji Nishino; Ryousuke Dohi |
| In a gas supply device supplying many different gases to a gas use portion through many flow rate controllers, a flow rate controller calibration unit includes a build-up tank with inner volume, an inlet side on-off valve and an outlet side on-off valve V2 of the tank, and a gas pressure detector and a gas temperature detector for gas inside the tank, joined in a branched form to a gas supply line, with the valve V2 connected to vacuum. The calibration unit is used to calibrate a flow rate controller based on performing a first measurement of gas temperature and pressure inside the tank, and then building-up gas into the tank, and then performing a second measurement of gas temperature and pressure, and from respective measured values, calculating gas flow rate Q and by comparing a set gas flow rate and calculated gas flow rate Q, performing flow rate calibration. | ||||||
| 134 | FLOW RATE RANGE VARIABLE TYPE FLOW RATE CONTROL APPARATUS | US14626128 | 2015-02-19 | US20150160662A1 | 2015-06-11 | Tadahiro Ohmi; Masahito Saito; Shoichi Hino; Tsuyoshi Shimazu; Kazuyuki Miura; Kouji Nishino; Masaaki Nagase; Katsuyuki Sugita; Kaoru Hirata; Ryousuke Dohi; Takashi Hirose; Tsutomu Shinohara; Nobukazu Ikeda; Tomokazu Imai; Toshihide Yoshida; Hisashi Tanaka |
| A pressure type flow rate control apparatus is provided wherein flow rate of fluid passing through an orifice is computed as Qc=KP1 (where K is a proportionality constant) or as Qc=KP2m (P1−P2)n (where K is a proportionality constant, m and n constants) by using orifice upstream side pressure P1 and/or orifice downstream side pressure P2. A fluid passage between the downstream side of a control valve and a fluid supply pipe of the pressure type flow rate control apparatus comprises at least 2 fluid passages in parallel, and orifices having different flow rate characteristics are provided for each of these fluid passages, wherein fluid in a small flow quantity area flows to one orifice for flow control of fluid in the small flow quantity area, while fluid in a large flow quantity area flows to the other orifice for flow control of fluid in the large flow quantity area. | ||||||
| 135 | Flowmeter | US12921321 | 2009-03-02 | US09046222B2 | 2015-06-02 | Hajime Miyata; Kenichi Kamon; Youichi Itou; Daisuke Bessyo; Ryuji Iwamoto |
| Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible.A volume of gas flowing through a flow path 102 is measured by a flow volume measurement unit 106, and pressure is measured by a pressure measurement unit 108. Measured flow data and measured pressure data are input to an analysis unit 112, to thus analyze following of a pressure change by a flow volume change. An amount of flow volume change responsive to an amount of pressure change of a predetermined level or more is classified into a plurality of ranges by means of a predetermined threshold value, and a following flow value change is determined on the basis of determination conditions of the respective ranges of amounts of flow volume changes. | ||||||
| 136 | Thermal flow sensor having an electromagnetic actuator for a cyclic flow modulator | US13781916 | 2013-03-01 | US08650946B1 | 2014-02-18 | Murray F Feller |
| A thermal flow sensor is responsive only to a modulated component of the flow. At zero flow the modulated component disappears, except for an artifact caused by motion of the modulator. This artifact is minimized by reducing the extent of modulator motion and by sampling the modulated signal at a quiescent part of the modulator's operating cycle. This results in a thermal flow sensor with a very stable zero. | ||||||
| 137 | CALIBRATION METHOD AND FLOW RATE MEASUREMENT METHOD FOR FLOW RATE CONTROLLER FOR GAS SUPPLY DEVICE | US13813219 | 2011-06-28 | US20130186471A1 | 2013-07-25 | Masaaki Nagase; Nobukazu Ikeda; Yohei Sawada; Tooru Hirai; Kazuyuki Morisaki; Kouji Nishino; Ryousuke Dohi |
| In a gas supply device supplying many different gases to a gas use portion through many flow rate controllers, a flow rate controller calibration unit includes a build-up tank with inner volume, an inlet side on-off valve and an outlet side on-off valve V2 of the tank, and a gas pressure detector and a gas temperature detector for gas inside the tank, joined in a branched form to a gas supply line, with the valve V2 connected to vacuum. The calibration unit is used to calibrate a flow rate controller based on performing a first measurement of gas temperature and pressure inside the tank, and then building-up gas into the tank, and then performing a second measurement of gas temperature and pressure, and from respective measured values, calculating gas flow rate Q and by comparing a set gas flow rate and calculated gas flow rate Q, performing flow rate calibration. | ||||||
| 138 | Flow rate range variable type flow rate control apparatus | US11913277 | 2006-06-22 | US08418714B2 | 2013-04-16 | Tadahiro Ohmi; Masahito Saito; Shoichi Hino; Tsuyoshi Shimazu; Kazuyuki Miura; Kouji Nishino; Masaaki Nagase; Katsuyuki Sugita; Kaoru Hirata; Ryousuke Dohi; Takashi Hirose; Tsutomu Shinohara; Nobukazu Ikeda; Tomokazu Imai; Toshihide Yoshida; Hisashi Tanaka |
| A pressure type flow rate control apparatus is provided wherein flow rate of fluid passing through an orifice is computed as Qc=KP1 (where K is a proportionality constant) or as Qc=KP2m(P1−P2)n (where K is a proportionality constant, m and n constants) by using orifice upstream side pressure P1 and/or orifice downstream side pressure P2. A fluid passage between the downstream side of a control valve and a fluid supply pipe of the pressure type flow rate control apparatus comprises at least 2 fluid passages in parallel, and orifices having different flow rate characteristics are provided for each of these fluid passages, wherein fluid in a small flow quantity area flows to one orifice for flow control of fluid in the small flow quantity area, while fluid in a large flow quantity area flows to the other orifice for flow control of fluid in the large flow quantity area. | ||||||
| 139 | Inverse venturi meter with insert capability | US12612458 | 2009-11-04 | US07934433B1 | 2011-05-03 | Juan P. Franco; Kanti D. Lad |
| An insert meter can be run into an inverse venturi on wireline and make use of the existing pressure taps to allow accurate measurement of reduced flow rates that could not be accurately measured with the inverse venturi meter. The insert meter has seals and can lock into position with peripheral sealing to direct the new and lower flow rate into the throat of the insert meter that is preferably a standard venturi. The venturi devices can be in meter or eductor service and located downhole, subsea or on the surface. | ||||||
| 140 | Triple Redundancy Vortex Flowmeter System | US12195138 | 2008-08-20 | US20090049926A1 | 2009-02-26 | Wade M. Mattar; Harry William Des Rosiers |
| A system includes a first shedder that is at least partially disposed in a fluid conduit and that generates vortices within the fluid conduit, a first flow sensor system that is responsive to the vortices generated by the first shedder and a second flow sensor system that is responsive to the vortices generated by the first shedder. The system further includes a second shedder that is at least partially disposed in the fluid conduit, that generates vortices within the fluid conduit, and that is separated from the first shedder by a distance. A third flow sensor system is responsive to the vortices generated by the second shedder. | ||||||
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