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WO2024206929A1 - Système et procédé de chauffage de fluide à l'aide d'énergie électrique isolée galvaniquement ayant une tension nulle à la terre - Google Patents

Système et procédé de chauffage de fluide à l'aide d'énergie électrique isolée galvaniquement ayant une tension nulle à la terre Download PDF

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Publication number
WO2024206929A1
WO2024206929A1 PCT/US2024/022378 US2024022378W WO2024206929A1 WO 2024206929 A1 WO2024206929 A1 WO 2024206929A1 US 2024022378 W US2024022378 W US 2024022378W WO 2024206929 A1 WO2024206929 A1 WO 2024206929A1
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WO
WIPO (PCT)
Prior art keywords
tube
power
power supply
voltage
galvanically isolated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/US2024/022378
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English (en)
Inventor
Grégoire QUERE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Watlow Electric Manufacturing Co
Original Assignee
Watlow Electric Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Watlow Electric Manufacturing Co filed Critical Watlow Electric Manufacturing Co
Priority to AU2024242375A priority Critical patent/AU2024242375A1/en
Publication of WO2024206929A1 publication Critical patent/WO2024206929A1/fr
Priority to MX2025011518A priority patent/MX2025011518A/es
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0019—Circuit arrangements
    • H05B3/0023—Circuit arrangements for heating by passing the current directly across the material to be heated
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications
    • H05B1/0244—Heating of fluids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • the present disclosure relates to a method and system for direct electrical heating of a fluid system.
  • a system for heating fluid employs multiple tubes carrying fluid within, where the tubes are fire heated.
  • fire heat treatment can emit greenhouse gases and can cause uneven temperature profiles across the tubes, which can cause inefficient operation of the system.
  • a fluid heating system comprises a tube defining a fluid passage and comprising an electrically conductive material, wherein the tube defines an inlet and an outlet to receive and expel fluid.
  • a set of power systems includes a galvanically isolated power supply electrically connected to the tube to provide an electric energy to heat the tube and a power controller configured to operate the galvanically isolated power supply to provide the electric energy to the tube.
  • the power controller is configured to adjust an electric current to be provided by the galvanically isolated power supply, wherein the set of power systems is configured to control the electrical energy to have substantially zero voltage at the inlet and substantially zero voltage at the outlet.
  • a sensor system includes a plurality of sensors to detect one or more operational parameters, wherein the operational parameters include one or more temperatures proximate the tube, one or more electrical characteristics, or a combination thereof, and the electrical current to be provided is based on at least one of the one or more operational parameters;
  • the electrical characteristics include at least one of a ground electric current measured as an electric current traveling to ground, an isolation voltage measured as a voltage provided by the galvanically isolated power supplies of the set of power systems, and a ground voltage measured as a voltage between of at least one electrically conductive surface and ground;
  • the set of power systems includes a first power system and a second power system, a first galvanically isolated power supply of the first power system is electrically connected at a first portion and a second portion of the tube, and a second galvanically isolated power supply of the second power system is electrically connected at the second portion and a third portion of the tube; the second portion of the tube is located between the first portion
  • a thermal control system for a fluid heating system includes a tube defining an inlet and an outlet, the thermal control system comprising a galvanically isolated power supply electrically connected to the tube to provide an electric energy to heat the tube, and a power controller configured to control the galvanically isolated power supply.
  • the power controller is configured to adjust an electric current to be provided by the galvanically isolated power supply to the tube.
  • the galvanically isolated power supply is configured to provide at least two low voltage junctions at the tube and at least one high voltage junction at the tube, and the at least one high voltage junction is disposed between the at least two low voltage junctions to provide substantially zero voltage at the inlet and substantially zero voltage at the outlet of the tube.
  • FIG. 1A illustrates a fluid heating system including a plurality of tubes and a plurality of power systems in accordance with the present disclosure
  • FIG. 1 B is a top view of the plurality of tubes in accordance with the present disclosure
  • FIG. 2 illustrates a heater subsystem including a tube and a set of power systems in accordance with the present disclosure
  • FIG. 3 illustrates another form of a heater subsystem in accordance with the present disclosure.
  • FIG. 4 illustrates another form of a heater subsystem having a dual output transformer.
  • fire (or natural gas) heated tubes are replaced with direct electric energy in which electrical energy is applied directly to the tube, which is made of a conductive material such as stainless steel, by way of example.
  • Each tube can be equipped with its own electrical power system for heating, and the current to the tube can be adjusted to control the temperature of a fluid inside the tube.
  • direct electric energy each tube is to be electrically isolated from other tubes and from a main power source connected to each power system for each of the tubes.
  • a fluid heating system of the present disclosure includes a plurality of tubes, and each tube is heated by electric energy applied by a set of power systems connected to the tube.
  • the set of power systems galvanically isolate the tube from, at least, other tubes of the fluid heating system and from the power source.
  • the set of power systems is advantageously configured to provide zero voltage to ground. That is, the sum of voltage applied by the set of power systems is zero to reduce the amount of electric current flowing to ground, while providing a full range of voltage and/or current levels to the tube.
  • the term "fluid” should be construed to mean liquid, gas, or plasma, among others.
  • an example fluid heating system 100 includes a plurality of tubes 102 and a plurality of power systems 104 configured to heat fluid flowing within and through the tubes 102.
  • a selected tube 102 is electrically connected to a set of power systems 104 from among the plurality of power systems 104, such as power systems 104A and 104B in the example of FIG. 2.
  • the set of power systems 104 form a thermal control system to control a temperature or more specifically, a thermal profile, of the tube 102 for heating the fluid.
  • the tube 102 and the set of power systems 104 form a heater subsystem, where the fluid heating system 100 includes a plurality of the heater subsystems.
  • the plurality of the heater subsystems are electrically isolated from each other, at least, by galvanically isolated power supplies and by providing a substantially zero sum voltage between opposite ends of the tube 102, as described in greater detail below.
  • the tube 102 defines a fluid passage and comprises electrically conductive material.
  • the tube 102 further defines an inlet 112 connected to a fluid input manifold 116 and an outlet 114 connected to a fluid output manifold 118 to receive and expel the fluid.
  • the manifolds 116 and 118 are electrically grounded.
  • only one tube 102 is illustrated, but it should be readily understood that multiple tubes 102 may be connected to the same fluid input manifold 116 and the fluid output manifold 118 while remaining within the scope of the present disclosure.
  • the fluid heating system 100 is provided for a reactor system that employs a catalyst 119 to produce a chemical reaction within the tubes 102 when being heated by the electrical energy. Fluid enters the tube 102 through the fluid input manifold 116 and a byproduct of the chemical reaction is expelled via the fluid output manifold 118. The direction of the fluid and byproduct are provided with arrows 120 in FIG. 2. While the fluid heating system 100 having the tubes 102 and the power systems 104 is described with respect to a reactor system, the fluid heating system 100 of the present disclosure may be provided with other fluid heating applications, both with and without chemical reactions, and should not be limited to a reactor system as illustrated and described herein.
  • the fluid heating system 100 may be provided for a reactor system not employing a catalyst.
  • the system 100 is employed for heating water within the tube 102 to generate steam.
  • the fluid heating system 100 can be used for other suitable applications in which direct electrical energy as illustrated and described herein is employed to heat tubes, and thus the fluid flowing within the tubes.
  • the plurality of power systems are configured to provide high electric current (e.g., 1 ,000-10,000 Amps) directly to the tubes 102 and, as described herein, the electric current is controlled between at least two low voltage terminals or cold terminals of the set of power systems 104 connected to the selected tube 102. More particularly, in the example of FIG. 2, the set of power systems 104A, 104B are electrically connected to portions 122 of the tube 102 (e.g., portions 122A, 122B, 122C in FIG. 2) to apply electrical energy at the respective portions 122 of the tube 102.
  • high electric current e.g., 1 ,000-10,000 Amps
  • the set of power systems 104A, 104B are electrically connected to portions 122 of the tube 102 (e.g., portions 122A, 122B, 122C in FIG. 2) to apply electrical energy at the respective portions 122 of the tube 102.
  • Each power system 104A, 104B includes a galvanically isolated (G-l) power supply 106A, 106B and a power controller 108A, 108B for controlling the G-l power supply 106A, 106B.
  • G-l power supplies 106A, 106B may collectively be referred to as a “G-l power supply 106” and the power controllers 108A, 108B may collectively be referred to as a “power controller 108.”
  • the set of power systems 104 includes two or more power systems 104, the set of power systems 104 defines a plurality of zones, where each power system 104 provides electrical energy at a respective zone.
  • the power supply 106A defines a zone A generally between portions 122A and 122B and the power supply 106B defines zone B generally between portions 122B and 122C.
  • FIG. 2 illustrates the set of power systems 104 including two power systems 104A, 104B, the set of power systems may include one or more power systems 104 and should not be limited to two power systems.
  • the power controller 108 is configured to operate the G-l power supply 106 to provide the electric energy to the tube 102. More specifically, the power controller 108 is configured to control a temperature of the tube 102 by adjusting an electric current to be provided by the G-l power supply 106 based on one or more operational parameters. In one form, as detailed below, the power controllers 108 of the set of power systems 104 are configured to provide zero voltage to ground to reduce the amount of electric current traveling to ground.
  • the power controller 108 includes a power converter electrically coupled to a power source (not shown), such as a single-phase alternating current (AC) or direct current (DC) power source, to adjust the power from the power source to a desired level (e.g., desired voltage and/or desired current).
  • the power controller 108 may also include other circuitry such as a communication interface and/or a power safety switch (not shown).
  • the communication interface is configured to communicate with external devices such a system controller 128 that provides an operational signal indicative of the amount of electric energy (i.e., power, voltage, and/or current) to be provided to the tube 102 by the G-l power supply 106.
  • the power safety switch is configured to turn power OFF to the G-l power supply 106 in response to an electrical characteristic, described below, being at or above a desired threshold.
  • the G-l power supply 106 is electrically connected to multiple portions 122 of the tube 102 to provide the electric energy to heat the tube 102.
  • the G-l power supply 106 includes a transformer 107 (shown as 107A and 107B in FIG. 2) configured to receive adjustable power from the power controller 108.
  • the transformer 107 provides the electric energy to the tube 102 while electrically isolating the electric energy being applied from other devices, such as, the power source and the power controller 108.
  • the G-l power supply 106 is operable to provide a vast range of voltage and/or electric current regardless of the type of power source being employed. Additional details regarding the power systems 104 is described further below.
  • the fluid heating system 100 further includes a sensor system that includes a plurality of sensors to detect one or more of the operational parameters, which may include, but is not limited to, temperature proximate the tube 102, electrical characteristics, and/or fluid characteristics.
  • the temperature of the tube 102 may be measured by one or more temperature sensors 130A provided at the tube 102.
  • the electrical characteristics may include: a ground electric current (IGND) measured as the electric current traveling to ground; a line current (ILN); a load current (ILD) measured between terminals of the G-l power supply 106 (e.g., terminals of transformer); a ground voltage (VGND) measured between the tube 102 and ground; a line voltage (VLN); a load voltage (VLD) measured between terminals of the G-l power supply 106 (e.g., terminals of transformer).
  • IGND ground electric current
  • INN line current
  • ILD load current
  • VGND ground voltage
  • VLD load voltage
  • One or more of the electrical characteristics are measured by sensors 130B, which are provided as current and/or voltage sensors in one form of the present disclosure.
  • the fluid characteristics may include, by way of example, fluid pressure, fluid flow rate, mass flow rate, fluid composition, turbulence, and fluid temperature, among others.
  • sensors 130C One or more of the fluid characteristics may be measured by sensors 130C.
  • the sensors 130A, 130B, 130C are collectively referenced as a sensor system 130, and are provided for illustrative purposes and are not intended to represent actual physical connection of the sensor system 130 in the system 100. While specific operational parameters are provided, it should be readily understood that not all of the operational parameters described herein need to be employed and/or other operational parameters may be included, such as, but not limited to, temperature at the manifolds 116, 118.
  • the system controller 128 processes the operational parameters to determine the amount of energy to be provided to each tube 102.
  • the system controller 128 may be configured in various suitable ways for determining the current to be applied by the G-l power supply 106 and provide the operational signals to the set of power systems 104.
  • the system controller 128 is configured to include a closed-loop control routine defined to determine the amount of electric current to apply based on one or more operational setpoints such as, but not limited to, temperature setpoint, voltage setpoint, current setpoint, and/or power setpoint.
  • the system controller 128 is configured to include an open-loop control routine to provide a desired amount of current for a period of time.
  • system controller 128 may be part of the thermal control system to control the power systems 104. That is, in some applications, the power systems 104 of the present disclosure may be employed with a preexisting system controller. In other applications, the system controller 128 may be provided with the power systems 104.
  • the set of power systems 104 electrically connected to the tube 102 is configured to provide substantially zero voltage to ground. More particularly, in the example of FIG. 2, the voltage provided by the power supply system 104B is of substantially the same opposite voltage as the voltage provided by power supply system 104A. Specifically, the G-l power supply 106A is electrically connected at the portion 122A and the portion 122B of the tube 102, and the G-l power supply 106B is electrically connected at the portion 122B and the portion 122C of the tube 102.
  • At least two terminals of the G-l power supplies 106A, 106B are connected such that the portion 122A and the portion 122C, which are arranged closest to the inlet 112 and the outlet 114, respectively, are low voltage terminals (i.e., substantially 0V) or, in other words, "cold" terminals.
  • other terminals of the G-l power supplies 106A, 106B are connected such that the portion 122B, which is arranged between the portion 122A and 122C, is a high voltage terminal or, in other words, a "hot" terminal.
  • the set of power systems 104A, 104B are arranged such that the voltage between portions 122A and 122B mirrors, or is the same as, the voltage between portions 122B and 122C. Accordingly, if the power system 104A provides 50V across portions 122A and 122B, the power system 104B provides -50V across portion 122B and 122C, such that the sum voltage between portions 122A and 122C is zero. Thus, the portions 122A and 122C provided closest to the inlet 112 and the outlet 114 are at about zero volts, respectively.
  • the set of power systems 104 is not required to provide a strict mirrored voltage to obtain substantially zero voltage to ground, as described with respect to the example of FIG. 2.
  • FIG. 3 illustrates the tube 102 and the set of power systems 104A, 104B of FIG. 2, and further includes an additional power system 104C connected to the tube 102.
  • the set of power systems 104 are connected such that: the power system 104A is electrically connected to portions 122A and 122B of the tube 102 defining a zone A; the power system 104B is electrically connected to portions 122B and 122C defining a zone B; and the power system 104C is electrically connected to portions 122C and 122D defining a zone C.
  • the portions 122A and 122D are closest to the inlet 112 and the outlet 114 of tube 102, respectively, and thus the set of power systems 104 is connected to have two low voltage terminals connected to portions 122A and 122D (e.g., low voltage terminals of power system 104A and power system 104D are connected closest to the inlet 112 and the outlet 114, respectively).
  • the high voltage terminals and other low voltage terminals of the set of power systems 104 are connected between the two low voltage terminals connected to portions 122A and 122D.
  • the set of power systems 104 can be controlled in various suitable ways to provide the substantially zero voltage to ground.
  • the power system 104A is configured to provide 50V between portions 122A and 122B, the power system 104B is configured to provide -25V between portions 122B and 122C, and the power system 104C is configured to provide -25V between portions 122C and 122D.
  • the power system 104A may provide 100V between 122A and 122B, the power system 104B is configured to provide -75V between portions 122B and 122C, and the power system 104C is configured to provide -25V between portions 122C and 122D, thereby providing a substantially zero voltage sum between portions 122A and 122C.
  • the portions 122 are provided as rectangular members to distinguish a section of the tube 102 that is connected to the G-l power supply from other portions of the tube 102.
  • the power systems 104 are illustrated as sharing portions 122 of the tube 102 (e.g., power systems 104A and 104B are both connected to portion 122B), the power systems 104 are not required to share connection portions. For example, with respect to FIG. 3, there may be a distance between the terminals of power system 104B and power system 104C.
  • the placement of the high voltage terminal(s) of the G-l power supply 106 is selected to provide a desired thermal profile for the application employing the fluid heating system 100, and may be determined based on various parameters, such as but not limited to, a concentration of the catalyst and/or cold spots along the tube 102.
  • a concentration of the catalyst and/or cold spots along the tube 102 For example, in the example application of FIG. 2, if the catalyst 119 is concentrated closer to the fluid output manifold 118, the hot terminals may be connected to a portion of the tube 102 closer to the portion 122C to concentrate the electric energy, and thus, the heat generated near the concentrated catalyst. It should be understood herein that any location that has a voltage different from ground, may be positive or negative.
  • the G-l power supply 106 of the power systems 104 includes a single output transformer 107, however, in one form, a multioutput transformer may also be used.
  • a power system 204 is provided for the tube 102 and is considered a set of power systems 204 for the tube 102.
  • the power system 204 includes a G-l power system 206 and a power controller 208.
  • the G-l power system 206 includes a dual voltage output transformer 207 having a primary coil and two secondary coils.
  • one secondary coil is electrically connected to portions 122A and 122B of the tube 102 and the other secondary coil is electrically connected to portions 122B and 122C of the tube 102.
  • the secondary coils are electrically connected to have portions 122A and 122C as low voltage terminals and portion 122B as the high voltage section.
  • the G-l power system 206 is configured to provide a first voltage between portions 122A and 122B and provide a second voltage between portions 122B and 122C, where the second voltage is the negative value of the first voltage (e.g., first voltage is 100V and second voltage is -100V).
  • the set of power systems for the tube 102 may include one power controller and one G-l power system.
  • the power system 204 may be used in combination with the power systems 104 to form the set of power systems 104, 204 for heating the tube.
  • the amount of electric current flowing to ground may be further managed to inhibit wear to the overall fluid heating system 100 by providing a desired amount of impedance between low voltage terminals and ground. More particularly, the distances between the low voltage terminals and the fluid input manifold 116 and the fluid output manifold 118 is defined based on the desired impedance for the fluid heating system 100. For example, referring to FIG. 2, a first distance is defined between the fluid input manifold 116 and a portion of the tube 102 closest to the fluid input manifold 116 and connected to the set of power systems 104 (e.g., the portion 122A in FIG.
  • a second distance is defined between the fluid output manifold 118 and a second portion of the tube 102 closest to the fluid output manifold 118 and connected to the set of power systems 104 (e.g., portion 122C in FIG. 2).
  • the first distance is generally identified by arrow 132 and the second distance is generally identified by arrow 134.
  • the first distance and the second distance are adapted, or changed in length, to provide a desired amount of impedance between a respective electrically conductive surface of the tube 102 and ground, where the impedance reduces the electric current to ground.
  • the location of terminals of the set of power systems 104 may be further selected to control the amount of electric current flowing to ground. In one example, the amount of electric current to ground may be controlled to be less than or equal to 10% of the electric current flowing in the tube 102.
  • the fluid heating system 100 may further include a safety isolation transformer (not shown) to monitor current provided to ground.
  • the safety isolation transformer may be configured to perform a corrective action to inhibit current from exceeding a desired threshold, thereby reducing or inhibiting damage to the fluid heating system.
  • the tube 102 is a long pipe, however, the tube 102 may be configured to have other suitable shape such as, but not limited to a “U” shape or a W shape.
  • the set of power systems for the tube are arranged and connected to provide the zero voltage to ground in accordance with concept disclosed above.
  • the phrase at least one of A, B, and C should be construed to mean a logical (A OR B OR C), using a non-exclusive logical OR, and should not be construed to mean “at least one of A, at least one of B, and at least one of C.”
  • controller and/or “module” may refer to, be part of, or include: an Application Specific Integrated Circuit (ASIC); a digital, analog, or mixed analog/digital discrete circuit; a digital, analog, or mixed analog/digital integrated circuit; a combinational logic circuit; a field programmable gate array (FPGA); a processor circuit (shared, dedicated, or group) that executes code; a memory circuit (shared, dedicated, or group) that stores code executed by the processor circuit; other suitable hardware components (e.g., op amp circuit integrator as part of the heat flux data module) that provide the described functionality; or a combination of some or all of the above, such as in a system-on-chip.
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • the term memory is a subset of the term computer-readable medium.
  • the term computer-readable medium does not encompass transitory electrical or electromagnetic signals propagating through a medium (such as on a carrier wave); the term computer-readable medium may therefore be considered tangible and non-transitory.
  • Non-limiting examples of a non-transitory, tangible computer-readable medium are nonvolatile memory circuits (such as a flash memory circuit, an erasable programmable read-only memory circuit, or a mask readonly circuit), volatile memory circuits (such as a static random access memory circuit or a dynamic random access memory circuit), magnetic storage media (such as an analog or digital magnetic tape or a hard disk drive), and optical storage media (such as a CD, a DVD, or a Blu-ray Disc).
  • nonvolatile memory circuits such as a flash memory circuit, an erasable programmable read-only memory circuit, or a mask readonly circuit
  • volatile memory circuits such as a static random access memory circuit or a dynamic random access memory circuit
  • magnetic storage media such as an analog or digital magnetic tape or a hard disk drive
  • optical storage media such as a CD, a DVD, or a Blu-ray Disc
  • the apparatuses and methods described in this application may be partially or fully implemented by a special purpose computer created by configuring a general-purpose computer to execute one or more particular functions embodied in computer programs.
  • the functional blocks, flowchart components, and other elements described above serve as software specifications, which can be translated into the computer programs by the routine work of a skilled technician or programmer.

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Abstract

L'invention concerne un système de régulation thermique pour un système de chauffage de fluide comprenant un tube définissant une entrée et une sortie qui comprend une alimentation électrique isolée galvaniquement destinée à être électriquement connectée au tube pour fournir une énergie électrique pour chauffer le tube. Le système de régulation thermique comprend également un dispositif de commande d'alimentation électrique pour commander l'alimentation électrique isolée galvaniquement. Le dispositif de commande d'alimentation électrique est destiné à régler un courant électrique devant être fourni par l'alimentation électrique isolée galvaniquement au tube. L'alimentation électrique isolée galvaniquement est destinée à fournir au moins deux bornes basse tension au niveau du tube et au moins une borne haute tension au niveau du tube. La ou les bornes haute tension sont disposées entre les au moins deux bornes basse tension. L'alimentation électrique isolée galvaniquement est destinée à fournir une tension sensiblement nulle à l'entrée et une tension sensiblement nulle à la sortie du tube.
PCT/US2024/022378 2023-03-31 2024-03-29 Système et procédé de chauffage de fluide à l'aide d'énergie électrique isolée galvaniquement ayant une tension nulle à la terre Pending WO2024206929A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2024242375A AU2024242375A1 (en) 2023-03-31 2024-03-29 System and method for heating fluid using galvanically isolated electrical energy having zero voltage to ground
MX2025011518A MX2025011518A (es) 2023-03-31 2025-09-26 Sistema y metodo para calentar un fluido usando energia electrica aislada galvanicamente que tiene voltaje cero a tierra

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202363456302P 2023-03-31 2023-03-31
US63/456,302 2023-03-31

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WO2024206929A1 true WO2024206929A1 (fr) 2024-10-03

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AU (1) AU2024242375A1 (fr)
MX (1) MX2025011518A (fr)
WO (1) WO2024206929A1 (fr)

Citations (5)

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Publication number Priority date Publication date Assignee Title
US20050274915A1 (en) * 2004-06-14 2005-12-15 Varec, Inc. Method and system for encoding fluid level
US7477836B2 (en) * 2006-11-02 2009-01-13 Dolphin Industries, Inc. Tankless water heater
US20200205237A1 (en) * 2017-04-03 2020-06-25 Instaheat Ag System and Method for Ohmic Heating of a Fluid
KR102337243B1 (ko) * 2014-02-14 2021-12-08 엠케이에스 인스트루먼츠, 인코포레이티드 직접적으로 전기적으로 가열되는 흐름-통과 화학물 반응기를 위한 방법 및 장치
US20230098601A1 (en) * 2020-02-14 2023-03-30 Basf Se Device and method for heating a fluid in a pipeline with single-phase alternating current

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050274915A1 (en) * 2004-06-14 2005-12-15 Varec, Inc. Method and system for encoding fluid level
US7477836B2 (en) * 2006-11-02 2009-01-13 Dolphin Industries, Inc. Tankless water heater
KR102337243B1 (ko) * 2014-02-14 2021-12-08 엠케이에스 인스트루먼츠, 인코포레이티드 직접적으로 전기적으로 가열되는 흐름-통과 화학물 반응기를 위한 방법 및 장치
US20200205237A1 (en) * 2017-04-03 2020-06-25 Instaheat Ag System and Method for Ohmic Heating of a Fluid
US20230098601A1 (en) * 2020-02-14 2023-03-30 Basf Se Device and method for heating a fluid in a pipeline with single-phase alternating current

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TW202445066A (zh) 2024-11-16
MX2025011518A (es) 2025-11-03
AU2024242375A1 (en) 2025-09-25

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