326results about "Volume flow proportion measurement" patented technology

The invention discloses a gas-liquid mixed transportation multiphase flowmeter, and relates to the technical field of flow measurement. The device comprises a measurement chamber, a conductive polar plate, a permanent magnet and a detection assembly. A plurality of temperature measuring sheets and a reference temperature measuring plate are arranged in the measuring chamber, the temperature is controlled by a heating wire, and the design of a temperature guide block and a heated block is combined, so that the flow velocity of fluid is accurately measured. The device converts temperature change into resistance change through mechanical displacement transmission, and further obtains flow velocity information of fluid. Through the combination of the conductive polar plate and the permanent magnet, the potential difference generated by the conductive liquid in the magnetic field is measured through electromagnetic induction, and the volume ratio of gas to liquid in the fluid is judged.

A flow measurement apparatus can include a main flow passage, a bypass flow passage having an inlet and an outlet connected with the main flow passage, a mass flowmeter connected in the bypass flow passage between the inlet and the outlet, and a flow restrictor connected in the bypass flow passage between the inlet and the outlet. A method can include connecting the flow measurement apparatus, so that a fluid flow in the well also flows through the flow measurement apparatus, and determining at least one rheological parameter of a non-Newtonian fluid, based on an output of the flow measurement apparatus.

The embodiment of the invention provides a substance measuring device and a substance measuring method, the substance measuring device comprises a pressure difference forming pipe, and the apertures of at least two positions in the pressure difference forming pipe are different; the pressure sensor is arranged at the upstream of the pressure difference forming pipe and is used for detecting pressure data in the pressure difference forming pipe; the temperature sensor is arranged on the pressure difference forming pipe and is used for detecting temperature data of a multiphase object to be detected; the microwave resonance sensor is connected with the pressure difference forming pipe, the microwave resonance sensor comprises a channel, and the channel is communicated with the pressure difference forming pipe and used for collecting resonance data caused by the multiphase matter to be measured; and the pressure difference sensor is arranged on the pressure difference forming pipe and is used for detecting the pressure difference of at least two positions of the pressure difference forming pipe.

The invention relates to a sensor package comprising a sensor chip for measuring at least one flow parameter of a fluid and also comprising a base plate and a covering. The sensor package has openings on the covering and / or the base plate, for providing an entry region and an exit region for the fluid, such that a flow channel is formed within the sensor package. Furthermore, the sensor chip has a thermal sensor, comprising a heating element for providing a thermal field and also comprising a sensor component for detecting a temperature response of the thermal sensor in dependence on an influence which the fluid flowing in the flow channel has on the thermal field. On an outer side of the sensor package, at least one opening is laterally enclosed by a sealing material. The invention also relates to a sensor-package assembly, to a system and to a use of the sensor-package assembly or of the system.

A diagnostic method for verifying the proper functioning of a fluid flow control device of a fluid system, the method including determining whether at least one pressure sensor is functional and if the at least one pressure sensor is considered functional, determining whether a bypass valve is functional and if the bypass valve is considered functional, determining whether at least one flow sensor is functional, if the at least one flow sensor is considered dysfunctional, a flow sensor fault is raised; and otherwise if the at least one pressure sensor is considered dysfunctional, using the at least one flow sensor to determine whether the bypass valve is functional, if the bypass valve is considered functional, determining whether at least one pump is functional, a pump alert is raised if the at least one pump is considered dysfunctional.

The invention relates to the technical field of flow monitoring, and discloses an internal flow monitoring system for a mine paste filling anti-blocking pipe. Comprising a filling pipeline identification module, a risk pipeline analysis module, a pipeline analogue simulation module, a simulated pipeline simulation model, an attenuation rate calculation module, a flow attenuation rate calculation module, a pipeline flow early warning module and a pipeline flow early warning module, wherein the filling pipeline identification module is used for identifying filling pipelines in a filling pipe network; the risk pipeline analysis module is used for identifying risk pipelines with blockage risks; corresponding flow early warning information is formulated; according to the method, the flow change conditions of the risk pipeline at different time lines can be continuously monitored, and meanwhile, an analysis basis can be provided for the probability and severity of paste blockage in a subsequent filling pipe network; the dynamic change trend of the paste flow in the filling pipe network is accurately and flexibly monitored from the physical structure level and the virtual digital level, and the phenomenon that the filling pipe network is blocked by the paste is effectively avoided.

A system for removing dead volume in a sensor assembly of a mass flow controller is presented. The system comprises a valve assembly communicable coupled to the sensor assembly. The valve assembly is in fluid communication with fluid in a primary flow path and the sensor assembly is in fluid communication with fluid in the primary flow path. The sensor assembly comprises a pressure transducer having a first reservoir and another pressure transducer having a second reservoir. The first reservoir has a port in fluid communication with fluid in a sampled flow path. The second reservoir is coupled to a second pressure transducer and is fluidly coupled to the first reservoir through a flow through path. The second reservoir also includes another port for communicating the flow of fluid from the flow through path to another flow path. A flow rate restrictor is disposed in the flow through path.

Sound-permeable cover (120) for an acoustic device (102), wherein the cover comprises: a shrunk membrane material having an acoustic insertion loss of less than 6 dB at 1 kHz and a water inlet pressure (WEP) of at least 9.8 kPa, wherein the shrunk membrane material has a microstructure comprising serpentine fibrils and wherein the serpentine fibrils have a width of about 1.0 micron or less.

An arrangement for providing a fluid flow to a sensor, comprising a flow distributor plate (10) positioned in a flow channel, the flow distributor plate comprising a first surface (12a) and a second surface (12b) defining therebetween a fluid collection space (16); a plurality of holes (14) each forming a fluid flow channel through the flow distributor plate; and flow openings (18) in the side of each hole (14) of the plurality of holes configured to convey a part of the fluid flow in the hole (14) into the fluid collection space (16); the arrangement further comprising a sample flow guide (20) downstream of the second surface (12b) and configured to convey the fluid from the fluid collection space towards a sensor (90).

The embodiment of the invention provides multi-phase fluid proportion measuring equipment, method and device and a storage medium thereof, and relates to the field of oil and gas engineering. According to the device, an atom interference gravity sensor is arranged outside a multi-phase fluid area, the atom interference gravity sensor and the multi-phase fluid area are arranged in a spaced mode at a preset spacing distance, and the atom interference gravity sensor is used for detecting a gravity disturbance sequence generated by the multi-phase fluid area; the flow proportion measuring device is in signal connection with the atom interference gravity sensor, and the flow proportion measuring device is used for obtaining gravity disturbance and determining the multiphase fluid proportion of the multiphase fluid area in combination with the density inversion equation set of the multiphase fluid area and the multiphase proportion recognition model. The equipment measures the proportion condition of each phase of fluid based on gravity disturbance, and interference of high-pressure, high-temperature and high-salt environments of a wellhead on a measurement result can be avoided.

Sensor arrangement (10) for determining at least one parameter of a fluid medium flowing through a channel (26), in particular an intake air mass flow of an internal combustion engine, wherein the sensor arrangement (10) comprises a sensor housing (34), in particular a plug-in sensor (12) inserted or insertable into a flow tube, in which the channel (26) is formed, and at least one sensor chip arranged in the channel (26) for determining the parameter of the fluid medium, wherein the sensor housing (34) has an inlet (16) into the channel (26) which points against a main flow direction (18) of the fluid medium, and at least one outlet (30) from the channel (26) in a surface (28) of the sensor housing (34), wherein the surface (28) of the sensor housing (34) has several recesses (60) upstream of the outlet (30) in the main flow direction (18), characterized in thatthat the surface (28) of the sensor housing (34), viewed in the main flow direction (18), has a downstream step (40) adjacent to the outlet (30) with a shear edge (44) and an upstream step (42) adjacent to the outlet (30) with a shear edge (46), wherein the downstream step (40) and the upstream step (42) form a chimney-like projection (48) from the surface (28) and the downstream step (40) and the upstream step (42) delimit the outlet (30) on all sides.

The problem to be solved by the present invention is to obtain an internal combustion engine control device capable of appropriately correcting an output value of a flow rate sensor provided in an intake flow path of the internal combustion engine and reducing an error between a corrected air flow rate and an actual air flow rate. A control device (100) for an internal combustion engine (10) of the present invention includes a CPU (103) that computes an intake air amount of the internal combustion engine based on a sensor signal of an air flow sensor (12) provided in an intake passage (15), computes a pulsation rate from a pulsation amplitude and an average air amount of the intake air amount, and calculates a correction value for correcting a pulsation error of the intake air amount using the pulsation rate and an engine rotation speed of the internal combustion engine. A computation device includes an engine pulsation correction map (131), a blow-by pulsation correction map (132), and a criteria determination unit (133) that selects and uses one of these two correction maps for calculation of the correction value based on a parameter for determining an operation area of the internal combustion engine.

Embodiments of the present invention provide an in-line flow shunt test device and method, which relate to the technical field of fluid detection. The in-line flow shunt test device includes a flowmeter and a shunt meter. The flowmeter includes a pipe body, an orifice plate, and a sensor. The orifice plate is installed at the inlet of the pipe body, and the sensor is installed inside the pipe body. The shunt meter is of a cylindrical structure and is installed inside the pipe body. The central axis of the shunt meter is collinear with the central axis of the pipe body, and the sensor is inserted into the inside of the shunt meter. The in-line flow shunt test device replaces the test by assembling the shunt meter to the flowmeter, and at the same time, based on the shunt principle, realizes in-line testing of low-pressure large flow, and the testing is convenient, reliable, and accurate.

The invention relates to a flow sensor comprising:-a housing (100), the housing (100) having an inlet channel (110) for receiving a fluid measurement medium, an outlet channel (120) for discharging the fluid measurement medium, a measurement channel (130) extending between the inlet channel (110) and the outlet channel (120), and a flow sensor (130) extending between the inlet channel (110) and the outlet channel (120), and more particularly at least one auxiliary channel (140) extending parallel to the measuring channel (130); -a sensor element (200) arranged in the measurement channel (130) for sensing a physical measurement variable relating to a flow rate of the fluid measurement medium; and-a first, in particular bolt-shaped, closure element (300) wherein the first closure element (300) is designed and attached to the housing (100) such that the first closure element (300) can be moved relative to the first fluid transport element (150) or the second fluid transport element (160) into at least one first position (P1) and one second position (P2), the first closure element (300) closes the first fluid transport element (150) or the second fluid transport element (160) in the second position (P2), and wherein the first fluid transport element (150) or the second fluid transport element (160) is not closed in the first position (P1) of the first closure element (300). The invention also relates to a system comprising a flow sensor according to the invention.

Provided herein generally are methods of accounting for hydrogen (H2) in a natural gas (NG) stream, i.e., a NG / H2 blend, from a public NG utility to residential and / or business facility fuel cell (FC) systems, where the NG / H2 blend powers the FC systems and the volume of NG / H2 blend supplied to each FC systems is measured. Such measurements along with other data of the operation of the FC system, such as the volume of NG / H2 blend or an increased volume of NG, can be reported or transmitted to the public NG utility for each residential and / or business facility FC system supplied with the NG / H2 blend, where a reduced carbon footprint can be determined for the use of the NG / H2 blend by the FC system(s).

Provided is a physical quantity detection device (20) that can be disposed in a main flow path (22a) in which a to-be-measured gas (2) flows in one direction, the physical quantity detection device (20) comprising: a circuit chamber (135a) for accommodating a circuit board (300); an inflow port (220) that communicates the circuit chamber (135a) with the main flow path (22a) and that causes the to-be-measured gas (2) flowing through the main flow path (22a) to flow into the circuit chamber (135a); an outflow port (170) that communicates the circuit chamber (135a) with the main flow path (22a) and causes the to-be-measured the gas (2) in the circuit chamber (135a) to flow out to the main flow path (22a); and a sensor (322) disposed inside of the circuit chamber (135a) such that at least a portion of the to-be-measured gas (2) flowing from the inflow port (220) to the outflow port (170) is located in a path (2a).

The invention relates to a cover element for a flow measuring device, comprising a positive-locking receptacle for the bypass channel and pin-shaped flow resistance elements for throttling the fluid flow and fixing the cover element. The invention further relates to a flow measuring device comprising a main channel, a bypass channel, a measuring element, and such a cover element, thereby achieving a cost-effective and simple implementation of the bypass channel.

To remove the dead volume in the sensor assembly of a mass flow controller.SOLUTION: A sensor assembly 16 of a mass flow controller includes: a first reservoir 22 coupled to a first pressure transducer 18 and communicating with a sampling flow path 64; a second reservoir 24 coupled to a second pressure transducer 20, communicating with the first reservoir 22 via a flow-through path 26, and further communicating with another sampling flow path 66; and a restrictor 68 disposed in the flow-through path 26 so as to face the first and second pressure transducers 18 and 20.SELECTED DRAWING: Figure 2A

A flow sensor configured to sense a flow rate of a fluid. The flow sensor includes a first nozzle and a second nozzle. The first nozzle is configured to receive a first portion of a fluid flowing within a flow path and develop a first differential pressure. The second nozzle is configured to receive a second portion of the fluid flowing within the flow path and develop a second differential pressure. Control circuitry is configured to determine the flow rate using at least one of the first differential or the second differential pressure.

A mounting tool configured to mount a measuring device inserted into a pipe, such as a flowmeter, includes: a receiving device configured to receive a sensor neck of the measuring device; a pointer device configured to indicate an alignment of the mounting tool fastened to the receiving device; and a fastening device, wherein the receiving device includes a body with two end faces that run parallel to one another, and an edge surface connecting the end faces, wherein on at least one of the end faces the body has a first marking configured to be brought into alignment with a second marking of the sensor neck, wherein the pointer device has a laser by which an alignment of the mounting tool can be adjusted.

The present invention discloses a multiphase flowmeter for mixed gas and liquid, and relates to the field of flow measurement technology. The present invention includes a measuring chamber, a conductive electrode plate, a permanent magnet and a detection assembly. By arranging multiple measuring temperature plates and a reference temperature measuring plate in the measuring chamber, controlling the temperature with a heating wire, and combining the design of a temperature conducting block and a heat receiving block, accurate measurement of the fluid flow rate is achieved. The device converts temperature changes into resistance changes through mechanical displacement transmission, thereby obtaining the flow rate information of the fluid. By utilizing the combination of the conductive electrode plate and the permanent magnet, electromagnetic induction is used to measure the potential difference generated by the conductive liquid in the magnetic field to determine the volume ratio of gas and liquid in the fluid.

Combustion device with mass flow sensor. Combustion device comprising a burner (1), a side channel (24), and a feed channel (11); wherein the side channel (24) includes an inlet, an outlet, and a mass flow sensor (13) located between the inlet and the outlet of the side channel (24); wherein the mass flow sensor (13) is configured to detect a signal corresponding to a flow rate (15) of a fluid through the side channel (24); wherein the mass flow sensor (13) is flush with the inner wall of the side channel (24) or projects into the side channel (24); wherein the side channel (24) comprises a first section and a second section; wherein the first section of the side channel (24) is different from the second section of the side channel (24); wherein the first section of the side channel (24) includes the mass flow sensor (13); and wherein the first section of the side channel (24) projects into the feed channel (11).and wherein the first section of the side channel (24) projects into the supply channel (11) such that the mass flow sensor (13) is arranged within the supply channel (11).

Gas meter (10) comprising: - a containment casing (11), - an inlet mouth (15) and an outlet mouth (16) for the passage of a gas flow, respectively entering inside the meter (10) and exiting the meter (10), - a detection module (19) which is housed inside the containment casing (11) and which is configured to detect at least one parameter of the gas entering / passing through the meter itself, said detection module (19) comprising a measurement duct (20) for the passage of the gas to be detected, - a plurality of through holes (50) which are obtained on the side walls of an outlet duct (40), or on a wall of an outlet structure, which is housed inside said containment casing (11) and it is fluidly connected, preferably sealed, upstream with the measurement duct (20) of the detection module (19) and downstream it is connected, preferably sealed, with the outlet mouth (16) of the meter (10), said plurality of through holes (50) defining a plurality of passages for the gas towards the outlet mouth (16) without crossing the detection module (19).

The utility model discloses a metering device and flue gas treatment equipment. The metering device comprises a first pipe, a second pipe, a purging pipe, a proportional valve and a purging valve; the first pipe is used for conveying compressed air; the second pipe and the first pipe are arranged in parallel at an interval; the second pipe is used for conveying a reducing agent; the first end of the purging pipe is communicated to the first pipe, the second end of the purging pipe is communicated to the second pipe, and the purging pipe is a hose; the proportional valve is arranged on the second pipe; the purging valve is arranged on the purging pipe and used for controlling the purging pipe to be connected or disconnected. Therefore, the first pipe and the second pipe are arranged in parallel at an interval, the space environment of the interval between the first pipe and the second pipe is simple, parts of the metering device can be maintained or replaced in the interval, and the operation of maintaining or replacing the parts of the metering device is convenient; and a hose is arranged, so that the purging pipe is convenient to place.

The present invention discloses a detection method and a detection device for the replacement requirement of an oilfield produced water filter plate, including: S1. Collect data in real time according to the filtration state of the filter plate to determine the first flow rate at the water intake inlet and the second flow rate at the filtration outlet; S2. Judge whether to start the flushing step according to the obtained first flow rate and second flow rate; S3. Calculate the change rate and passing ratio of the passing property of the flushing liquid according to the real-time monitoring data of the flow rate in the flushing step; S4. Calculate the change rate of the real-time current of the filter plate, the replacement coefficient and the average change rate of the current under the flushing state according to the real-time monitoring data of the resistance in the flushing step; S5. Measure the weight of the solid particles on the filter support plate in the buffer chamber after flushing and judge the change rate of the solid particle weight according to the historical data; S6. Judge the service life of the filter plate. The present invention can accurately and scientifically judge whether the filter plate needs to be replaced under the condition of non-stop operation.

A monitoring device for monitoring a flow of a fluid like a breathing gas comprises a main flow path (10) for the fluid between an inlet (11) and an outlet (12). A flow sensor (15) is associated with the main flow path. A flow restrictor (14) is arranged in the main flow path. A secondary flow path (20) for the fluid branches off from the main flow path upstream of the flow restrictor and merges with the main flow path downstream of the flow restrictor. The secondary flow path has higher flow resistance than the main flow path. At least one fluid property sensor (24; 25) for determining at least one property of the fluid in the secondary flow path (20) is associated with the secondary flow path (20). Also disclosed is a ventilation system that comprises the monitoring device and a patient interface (30).

Provided herein generally are methods of accounting for hydrogen (H2) in a natural gas (NG) stream, i.e., a NG / H2 blend, from a public NG utility to residential and / or business facility fuel cell (FC) systems, where the NG / H2 blend powers the FC systems and the volume of NG / H2 blend supplied to each FC systems is measured. Such measurements along with other data of the operation of the FC system, such as the volume of NG / H2 blend or an increased volume of NG, can be reported or transmitted to the public NG utility for each residential and / or business facility FC system supplied with the NG / H2 blend, where a reduced carbon footprint can be determined for the use of the NG / H2 blend by the FC system(s).

Various embodiments include a combustion apparatus. An example apparatus includes: a burner; a side duct; and a feed duct. The side duct comprises an inlet, an outlet, and a mass flow sensor between the inlet and the outlet of the side duct. The mass flow sensor is configured to detect a signal corresponding to an amount of flow of a fluid through the side duct. The side duct comprises a first portion and a second portion. The first portion of the side duct comprises the mass flow sensor. The first portion of the side duct is arranged within the feed duct.

The present application belongs to the technical field of flow meter, disclose a kind of two-phase flow meter and detection method for detecting gas phase, liquid phase simultaneously, two-phase flow meter includes main pipeline, detection mechanism, confluence mechanism, detection mechanism includes gas flow meter, liquid flow meter, first separation component and second separation component;Main pipeline is connected with the import of first separation component, second separation component is connected on one end of first separation component, gas flow meter is connected on the other end pipeline of first separation component, one end of second separation component is connected with liquid flow meter pipeline, the other end of second separation component is connected with gas flow meter pipeline, confluence mechanism is connected with the one end of gas flow meter away from first separation component and the one end of liquid flow meter away from second separation component.The present application improves the flow detection precision of gas-liquid mixed fluid, and then improves the quality of gas-liquid mixed fluid for production.

A device that can measure the gas-liquid ratio of the refrigerant in the pipeline after passing through the throttling device when the refrigeration system is in working state. It is divided into a non-test pipeline and a test pipeline. It includes a flow meter, a throttling device, a pipeline, a solenoid valve, a gas-liquid separation device, an open liquid storage container, and a pressure gauge. The test pipeline first uses the gas-liquid separation device to separate the gas phase and liquid phase refrigerant, and the liquid phase is stored in a container with a known bottom area, and its bottom pressure is measured. At this time, the mass flow of the gas phase and the liquid phase can be calculated according to the total flow of the refrigerant and the measured pressure, and finally the ratio is obtained.