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1. 发明公开

EP3347683A1 SYSTEMS AND METHODS FOR ACCURATE MEASUREMENT OF GAS FROM WET GAS WELLS 审中-公开
公开(公告)号：EP3347683A1
公开(公告)日：2018-07-18
申请号：EP16775020.7
申请日：2016-09-08
申请人： Saudi Arabian Oil Company
发明人： AL-KUAIT, Abdulmohsen, S. , ARSALAN, Muhammad
IPC分类号： G01F1/74 , G01F15/08 , G01F1/44 , G01F15/00 , G01F3/30 , G01F7/00
CPC分类号： B01D53/30 , B01D45/08 , B01D53/26 , E21B43/34 , G01F1/44 , G01F1/74 , G01F3/30 , G01F7/00 , G01F15/005 , G01F15/08
摘要： Systems and methods are described for liquid removal to increase the accuracy of gas flow meters, such as venturi meters. Systems and methods include a liquid knockout drum, an impingement plate, a drum separator, and a check valve.

2. 发明公开

EP1506377A1 OPTIMIZED CONVECTION BASED MASS AIRFLOW SENSOR CIRCUIT 审中-公开
标题翻译：空气质量流量传感器基于电路的优化对流
公开(公告)号：EP1506377A1
公开(公告)日：2005-02-16
申请号：EP03714337.7
申请日：2003-03-21
申请人： Delphi Technologies, Inc.
发明人： GEE, Gregory, Paul
IPC分类号： G01F1/00 , G01F1/12 , G01F25/00 , G01R35/00 , G01L25/00 , G01D1/00 , G01K1/00 , G01F3/30 , G01F1/68
CPC分类号： G01F1/698 , G01F1/69
摘要： A method and apparatus for measuring the amount of flow of a flowing medium. The method and apparatus include a bridge circuit (20) configured to develop a bridge voltage Vb such that the magnitude of the bridge voltage Vb is indicative of the amount of flow. The bridge circuit (20) is configured without having an ambient temperature sensor, thus the bridge voltage is uncompensated with respect to ambient temperature. A thermistor circuit (54) is configured to generate a temperature reference voltage (56) indicative of ambient temperature. A conditioning circuit (50) is configured to receive the uncompensated bridge voltage and the temperature reference voltage (56) to process the same and generate a compensated bridge voltage with respect to ambient temperature. The compensated bridge voltage is indicative of fluid flow.

3. 发明公开

EP2419385A4 SYSTEM SETUP FOR BIOLOGICAL METHANE POTENTIAL TEST 有权转让
标题翻译：系统设置程序潜在的一个测试为生物甲烷
公开(公告)号：EP2419385A4
公开(公告)日：2014-08-27
申请号：EP10764736
申请日：2010-04-01
申请人： BIOPROCESS CONTROL SWEDEN AB
发明人： LIU JING
IPC分类号： C02F11/04 , C10L3/10 , G01F3/26 , G01F3/30 , G01N33/00
CPC分类号： G01F3/26 , G01F3/30 , Y02E50/343
摘要： A measuring device is disclosed for measuring an ultra low gas flow, working by the principle of liquid displacement. In at least one embodiment, the measuring device includes at least one cell including a gas inflow device, a gas compartment device with a predefined inner geometric physical volume and active volume. In at least one embodiment, the gas compartment device includes one gas accumulating end and one lifting end, the gas compartment device also defining a geometric gas collecting point inside of the gas compartment device, during a gas filling cycle, the geometric gas collecting point moving further and further from the gas accumulating end to the lifting end during the gas filling cycle. Further, in at least one embodiment the cell includes a holding device having a pivoting element enabling the gas compartment device to pivot upwards when the geometric gas collecting point is positioned at the lifting end and the lifting force is larger than the down-pressing force at the lifting end, thereby releasing all of the accumulated gas in the gas compartment device, and then pivoting back to its initial standby position for new receipt and storage of gas during another gas filling cycle until next releasing sequence. Finally, in at least one embodiment, the cell also includes a sensor provided to generate a signal and/or change the state of a signal when the gas compartment device is not in its initial standby position, wherein the gas storing capacity of the inside of the gas compartment device is larger at the gas accumulating end than at the lifting end and wherein the gas accumulating end has a higher vertical position than the lifting end at the initial standby position.

4. 发明公开

EP3080561A1 METHOD AND APPARATUS FOR MEASURING GAS FLOW 审中-公开
标题翻译： VERFAHREN UND VORRICHTUNG ZUM MESSEN EINES GASFLUSSES
公开(公告)号：EP3080561A1
公开(公告)日：2016-10-19
申请号：EP14816151.6
申请日：2014-12-05
申请人： Politecnico di Milano
发明人： TELI, Aronne
IPC分类号： G01F3/30
CPC分类号： G01F3/30
摘要： There are described a method and an apparatus for measuring gas flow rate and/or volume (such as gas accumulation and consuption) based on the "rate of rise" method, particularly useful in the field of small gas flow rates, that uses a duct immersed in a liquid so as to generate a hydrostatic pressure that allows increase in pressure in a sealed chamber, so as to avoid the use of solenoid valves, producing a particular advantage when a multiple measurement system is required, when a plurality of gas flows are to be measured. The method can be applied advantageously to measure flow rates of gas produced by chemical and/or biological reactions, in particular the Biochemical Methane Potential (BMP) or the Biochemical Hydrogen Potential (BHP). A variant of the method also allows measurement of the Biochemical Oxygen Demand (BOD).
摘要翻译：描述了基于“上升速率”方法来测量气体流速和/或体积（例如气体积聚和消耗）的方法和装置，其在小气体流量领域特别有用，其使用管道浸入液体中以产生允许在密封室中增加压力的静水压力，以避免使用电磁阀，当需要多个测量系统时产生特别的优点，当多个气流为待测。该方法可以有利地用于测量由化学和/或生物反应产生的气体的流速，特别是生化甲烷电位（BMP）或生物化学氢电位（BHP）。该方法的变体还允许测量生化需氧量（BOD）。

5. 发明公开

EP2932204A2 OPERATING A HIGH ACCURACY THERMAL ANEMOMETER FLOW METER IN GAS STREAM CONTAINING LIQUID DROPLETS 有权
标题翻译：高精度操作thermoanemometer流量计在气体与液滴FLOWS
公开(公告)号：EP2932204A2
公开(公告)日：2015-10-21
申请号：EP13830137.9
申请日：2013-12-17
申请人： Los Robles Advertising, Inc.
发明人： KURZ, Daniel R. , BURTON, Bruce B. , DALLA BETTA, Ralph A.
IPC分类号： G01F1/68 , G01F1/688 , G01F1/696 , G01F1/699 , G01F1/74 , G01F3/30
CPC分类号： G01F1/684 , G01F1/696 , G01F1/699 , G01F1/74
摘要： A method is provided to operate a thermal anemometer flow meter to measure a property of a stream. The method includes measuring a first heat loss to the stream from operating at a first DeltaT above a temperature of the stream, measuring a second heat loss to the stream from operating at a second DeltaT above the temperature of the stream where the second DeltaT being greater than the first DeltaT. The method further includes determining the property of the stream based on the first and the second heat losses.

6. 发明公开

EP2419701A1 DEVICE FOR MEASURING AN ULTRA LOW GAS FLOW 审中-公开
标题翻译：用于测量气体流超声
公开(公告)号：EP2419701A1
公开(公告)日：2012-02-22
申请号：EP10764735.6
申请日：2010-04-01
申请人： Bioprocess Control Sweden AB
发明人： LIU, Jing
IPC分类号： G01F3/26 , C02F11/04 , C10L3/10 , G01F3/30
CPC分类号： G01F3/26 , G01F3/30 , Y02E50/343
摘要： A measuring device is disclosed for measuring an ultra low gas flow, working by the principle of liquid displacement. In at least one embodiment, the measuring device includes at least one cell including a gas inflow device, a gas compartment device with a predefined inner geometric physical volume and active volume. In at least one embodiment, the gas compartment device includes one gas accumulating end and one lifting end, the gas compartment device also defining a geometric gas collecting point inside of the gas compartment device, during a gas filling cycle, the geometric gas collecting point moving further and further from the gas accumulating end to the lifting end during the gas filling cycle. Further, in at least one embodiment the cell includes a holding device having a pivoting element enabling the gas compartment device to pivot upwards when the geometric gas collecting point is positioned at the lifting end and the lifting force is larger than the down-pressing force at the lifting end, thereby releasing all of the accumulated gas in the gas compartment device, and then pivoting back to its initial standby position for new receipt and storage of gas during another gas filling cycle until next releasing sequence. Finally, in at least one embodiment, the cell also includes a sensor provided to generate a signal and/or change the state of a signal when the gas compartment device is not in its initial standby position, wherein the gas storing capacity of the inside of the gas compartment device is larger at the gas accumulating end than at the lifting end and wherein the gas accumulating end has a higher vertical position than the lifting end at the initial standby position.

7. 发明公开

EP3521249A1 SYSTEM SETUP FOR BIOLOGICAL METHANE POTENTIAL TEST 有权转让
公开(公告)号：EP3521249A1
公开(公告)日：2019-08-07
申请号：EP19162072.3
申请日：2010-04-01
申请人： Bioprocess Control Sweden AB
发明人： LIU, Jing
IPC分类号： C02F11/04 , C10L3/10 , G01F3/26 , G01F3/30 , G01N33/00
摘要： The present invention discloses a system setup for performing an automated biological methane potential test of a biosample by measuring biomethane gas in a biogas flow, the system setup comprising:
- multiple digesters;
- multiple containers for chemical fixation of other gases than biomethane gas, the other gases being at least CO 2 , wherein the chemical fixation is based on irreversible reaction(s); and
- a flow cells array comprising multiple direct gas flow measuring devices;
- a data acquisition system (DAQ unit) configured for continuous and in real-time data recording and analyzing of the gas flow measurements;
wherein each digester is connected to one container for chemical irreversible fixation which in turn is connected to one gas flow measuring device;
wherein each gas flow measuring device is a liquid displacement measuring device having a gas compartment with one gas accumulating end and one lifting end, wherein gas storing capacity of the inside of the gas compartment is larger at the gas accumulating end than at the lifting end, and wherein the liquid displacement measuring device is operating based on leverage effect,
wherein each gas flow measuring device is immersed in a wet space, and
wherein each liquid displacement measuring device has at least one sensor means provided to generate a signal and/or change the state of a signal when the gas compartment is not in its initial standby position.

8. 发明公开

EP3104138A1 GASVOLUMENZÄHLER 审中-公开
公开(公告)号：EP3104138A1
公开(公告)日：2016-12-14
申请号：EP15171514.1
申请日：2015-06-10
申请人： Dr.-Ing. Ritter Apparatebau GmbH & Co.KG
发明人： Dr. Ritter, Joachim , Kim, Young Sung
IPC分类号： G01F3/36 , G01F5/00 , G01F15/00 , G01F15/18 , G01F3/30
CPC分类号： G01F3/36 , G01F3/30 , G01F5/00 , G01F15/005 , G01F15/18
摘要： Bereit gestellt wird ein Gasvolumenzähler (1) mit einem ersten (2) und einem zweiten (3) sich nach oben erstreckenden, zur Aufnahme eines Sperrfluids (5) geeigneten Arbeitsrohr, wobei beide Arbeitsrohre (2,3) in ihrem oberen, freien Bereich in eine erste (7) bzw. zweite (8) Gasleitung übergehen und in ihrem unteren Bereich (4) fluidkommunizierend miteinander verbunden sind, mit einer Messvorrichtung (13), die zur Ermittlung des Füllstandes des Sperrfluids (5) geeignet ist, mit einer Ventileinrichtung (9) für die erste Gasleitung (7) und einer Ventileinrichtung (10) für die zweite Gasleitung (8), wobei die Ventileinrichtungen (9,10) dazu geeignet sind, die zugehörige erste bzw. zweite Gasleitung (7 bzw. 8) entweder mit einer gasabführenden Leitung (12,15) oder einer gaszuführenden Leitung (11,16) zu verbinden, mit einer Steuereinrichtung für die Ventileinrichtungen (9,10), welche die Ventileinrichtungen (9,10) derart steuert, dass, sobald die Messvorrichtung (13) die Erreichung eines bestimmten Füllstandes ermittelt, diejenige Ventileinrichtung (9,10), welche mit der gasabführenden Leitung (12,15) verbunden war, mit der gaszuführenden Leitung (11,16) verbindet, sowie diejenige Ventilleinrichtung (9,10), die mit der gaszuführenden Leitung (12,15), verbunden war, mit der gasabführenden Leitung (11,16) verbindet. Dieser Gasvolumenzähler ist dadurch gekennzeichnet, dass ein Messrohr (6) vorhanden ist, das in seinem unteren Bereich fluidkommunizierend mit den beiden Arbeitsrohren (2,3) verbunden ist, die Messvorrichtung (13) im oder am Messrohr (6) angeordnet ist und das Messrohr (6) in seinem oberen Bereich
i) entweder zur Atmosphäre offen ist oder
ii) mit einem mit einer Gastrenneinrichtung ausgestatteten Druckrohr über eine weitere, von der Steuereinrichtung gesteuerten Ventileinrichtung (20) mit den beiden Arbeitsrohren (2,3) verbindbar ist.
摘要翻译：气体体积计（1），包括第一（2）和第二（3）设置用于接收阻挡流体（5）适当的工作管，向上延伸，其中，所述两个工作管（2,3）在它的上，自由区域中第一（7）和第二（8）通过气体管线和在其下部区域（4）fluidkommunizierend彼此连接，以用于确定所述阻挡流体的填充水平的测量装置（13）（5）是合适的（带阀装置 9）（用于第一气体管线7）和阀装置（10），用于将第二气体管线（8），其特征在于，所述阀装置（9,10）适于将所述相关联的第一或第二气体管线（7或8）与任一连接气体释放管（12,15）或气体供给线路（11,16），具有一个控制装置，用于所述阀装置（9,10），其控制所述阀装置（9,10），使得，一旦所述测量装置（13 ）实现确定一定水平时，其连接一个阀装置（9,10），其连接到所述气体释放管（12,15）与所述气体供给线路（11,16），以及该Ventilleinrichtung（9,10），所述与气体馈送（11,16）连接线（12,15），与所述气体释放管道连接。该气体体积计的特征在于：一个测量管（6）的存在，这是fluidkommunizierend连接在其下部与所述两个工作管（2,3），所述测量装置（13）设置在或在测量管（6）和所述测量管（6）在其上面部分I断开）要么气氛或ii）可连接到）通过带有气体分离器的压力管的另一烧瓶中，由所述控制器阀装置（20控制为两个工作管（2,3）。

9. 发明公开

EP2329230A1 TEMPERATURE SENSITIVE CIRCUIT 无效
标题翻译：温敏电路
公开(公告)号：EP2329230A1
公开(公告)日：2011-06-08
申请号：EP08788717.0
申请日：2008-08-28
申请人： Adaptalog Limited
发明人： ROKOS, George Hedley Storm
IPC分类号： G01F3/30
CPC分类号： G05F3/30
摘要： A circuit for use in a current source or a proportional to absolute temperature sensor or in a bandgap regulator conducting a current, the circuit comprising a PTAT cell having two parallel current branches each including at least one transistor and atleast one resistor, and a control circuit for determining the relationship between the driving currents through the two branches. A first transistor in the first branch has a higher effective current density flowing in use through its conductive area thanthe effective current density flowing in use through the conductive area of a second transistor in the second branch so as to develop control voltages (VBE) across the control terminals of the first and second transistors which differ from one another, thedifference (VBE) between the two control voltages (VBE) being regulated by the voltage across at least a regulating resistor in the second branch. In the invention, at least a further regulating resistor is provided in the first branch, the voltage dropacross which resistor regulates the effective difference in current densities between a third transistor and a reference transistor, and substantially the whole of at least one VBEvoltage is developed across a regulating resistor or resistors in each ofthe two branches for each full VBE of potential that is needed to bias the circuit into its operating condition.

10. 发明授权

EP2932204B1 OPERATING A HIGH ACCURACY THERMAL ANEMOMETER FLOW METER IN GAS STREAM CONTAINING LIQUID DROPLETS 有权
公开(公告)号：EP2932204B1
公开(公告)日：2022-07-27
申请号：EP13830137.9
申请日：2013-12-17
发明人： KURZ, Daniel R. , BURTON, Bruce B. , DALLA BETTA, Ralph A.
IPC分类号： G01F1/68 , G01F1/688 , G01F1/696 , G01F1/699 , G01F1/74 , G01F3/30

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