Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
  • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
  • G01F1/78—Direct mass flowmeters
  • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
  • G01F1/84—Coriolis or gyroscopic mass flowmeters
  • G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
  • G01F1/8459—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating means being located inside the measuring conduits
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
  • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
  • G01F1/78—Direct mass flowmeters
  • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
  • G01F1/84—Coriolis or gyroscopic mass flowmeters
  • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
  • G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
  • G01F1/8418—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments motion or vibration balancing means
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
  • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
  • G01F1/78—Direct mass flowmeters
  • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
  • G01F1/84—Coriolis or gyroscopic mass flowmeters
  • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
  • G01F1/8422—Coriolis or gyroscopic mass flowmeters constructional details exciters
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
  • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
  • G01F1/78—Direct mass flowmeters
  • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
  • G01F1/84—Coriolis or gyroscopic mass flowmeters
  • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
  • G01F1/8427—Coriolis or gyroscopic mass flowmeters constructional details detectors

Definitions

• the mass flow meter disclosed in US10393560B2 is provided with a tubular housing containing a flexible plate that vibrates in a twisting manner (torsion). The vibration of the plate is altered by the fluid flow therethrough.
• a phase lag of the plate oscillations can be measured and related to mass flow of a fluid traveling through the tubular housing, regardless of its thickness.
• An improved mass flow meter is provided.
• Figure 1 A is a perspective view of one exemplary embodiment of a prior art mass flow meter including a tubular housing and flexible plate positioned within the tubular housing;
• the mass flow meter 310 may be integrally formed with the fluid channel.
• the entire fluid flow V x 351 passes through the mass flow meter.
• An inlet and an outlet of the mass flow meter housing may form a fluid-tight coupling with the fluid channel or pipeline pumps, dispensers, etc. of the fluid flow system.
• Examples of fluid-tight couplings can include, but are not limited to, threaded engagements, clamps, welds, and the like.
• the mass flow meter 310 may be arranged inside a pipeline.
• the tubular housing is then not exposed to pressure from the surroundings enabling use of the mass flow meter in high pressure environments. This enable the tubular housing to be made of a much thinner and lighter material than the pipeline.
• the tubular housing may be a liner.
• the liner may be made of non-magnetizable material.
• the liner may be made of an electrically conducting or electrically non-conducting material.
• a pressure housing 390 (Fig.6) may be arranged outside the liner 391 .
• the pressure housing may be made of an electrically conducting material.
• Fig.6 illustrates an embodiment a mass flow meter with an internal liner 391 and outer tube 390 working as pressure containing part.
• the electromagnetic actuators 302, 303 and the sensor systems 301 , 304 may be arranged on the inside of the pressure housing, but on the outside of the liner.
• the space between the pressure housing and the liner may be filled with a liquid or solid filler material to transfer the pressure from the fluid flow 351 on the inside of the liner 391 and out to the pressure housing.
• the filler material may also serve to protect the electromagnetic actuators and sensor systems.
• the tubular housing may be a liner it does not need to withstand the high pressure of the fluid flow. This solution may e.g. be used for measuring high pressure fluids where the outer pressure housing would be too thick and use of electromagnetic actuators would not be possible.
• a first terminal end of the flexible plate can be at least partially coupled to the tubular housing at or near the housing inlet i and a second terminal end of the flexible plate can be at least partially coupled to the tubular housing at or near the housing outlet.
• the flexible plate may alternatively be mounted to the tubular housing 350 at one of the terminal ends of the flexible plate.
• more than one flexible plate 352 can be positioned within the housing (not shown). As illustrated in FIG. 2B, the flexible plate 352 can be in the form of a substantially planar plate.
• the flexible plate may have a width W approximately equal to an inner diameter (2R) of the tubular housing 350.
• the flexible plate interacts with substantially the entire fluid flow passing through the tubular housing.
• the flexible plate may have a curved shape in an equilibrium or unfixed state (not shown).
• the flexible plate may in some embodiments be extended/stretched and provided with a tension when attached inside the tubular housing, to change the resonance frequency of the flexible plate.
• the actuators 302, 303 may be electromagnetic actuators.
• An electromagnetic actuator may be in the form of one or more electromagnetic coils.
• An electromagnetic coil is a coil that may have a magnetic core. The coils may be arranged around the tubular housing and the magnetic core provided by a magnetic material 150, 151 , 152, 153, 154, 155, 156, 157 arranged in or on the flexible plate. At least a portion of the flexible plate 352 can be formed from a magnetic material (e.g., metals, metal alloys, steels, polymers, etc.).
• the flexible plate 352 can include one or more embedded permanent magnets 150, 151 , 152, 153, 154, 155, 156, 157.
• the mass flow meter may be used for measuring mass flow of e.g. CO2, NH3 , and H2 or LNG or other gas flows at high pressures.

Landscapes

• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• General Physics & Mathematics (AREA)
• Measuring Volume Flow (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=85937021

Family Applications (1)

Country Status (8)

Citations (6)

Family Cites Families (1)

• 2022
  • 2022-03-02 NO NO20220264A patent/NO348369B1/en unknown
• 2023
  • 2023-03-01 JP JP2024552331A patent/JP2025507937A/ja active Pending
  • 2023-03-01 EP EP23715614.6A patent/EP4487086B1/en active Active
  • 2023-03-01 US US18/842,224 patent/US20250180385A1/en active Pending
  • 2023-03-01 CA CA3249971A patent/CA3249971A1/en active Pending
  • 2023-03-01 KR KR1020247031863A patent/KR20240155920A/ko active Pending
  • 2023-03-01 CN CN202380034308.5A patent/CN119013537A/zh active Pending
  • 2023-03-01 WO PCT/NO2023/050044 patent/WO2023167591A1/en not_active Ceased

Patent Citations (6)

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