WO2019039960A1 - Générateur de vapeur électrique - Google Patents

Générateur de vapeur électrique Download PDF

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Publication number
WO2019039960A1
WO2019039960A1 PCT/RU2017/000721 RU2017000721W WO2019039960A1 WO 2019039960 A1 WO2019039960 A1 WO 2019039960A1 RU 2017000721 W RU2017000721 W RU 2017000721W WO 2019039960 A1 WO2019039960 A1 WO 2019039960A1
Authority
WO
WIPO (PCT)
Prior art keywords
coils
steam generator
secondary winding
legs
tubular
Prior art date
Application number
PCT/RU2017/000721
Other languages
English (en)
Russian (ru)
Inventor
Владимир Михайлович ШИПИЛОВ
Айрат Альбертович ФАЗЛЫЕВ
Original Assignee
Общество с ограниченной ответственностью "В-Плазма"
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.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=62713600&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2019039960(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Общество с ограниченной ответственностью "В-Плазма" filed Critical Общество с ограниченной ответственностью "В-Плазма"
Priority to EP17922300.3A priority Critical patent/EP3675598A4/fr
Publication of WO2019039960A1 publication Critical patent/WO2019039960A1/fr

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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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/281—Methods of steam generation characterised by form of heating method in boilers heated electrically other than by electrical resistances or electrodes
    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications

Definitions

  • the invention relates to a device for converting electrical energy into heat and for creating heat exchange. It can be used for heating liquids, for example, in heating and hot water supply systems of industrial and residential buildings, as well as in other areas that require heating and evaporation of fluids.
  • the prior art electric steam generator including an electrical transformer having a type-setting metal core, designed to create a closed magnetic field, the primary winding, located on the core and electrically isolated from it, the tubular secondary winding, located in a magnetic field isolated, jumper connected externally to turns of the tubular secondary winding in order to create a short circuit of the turns of the tubular secondary winding and the necessary means for the coercive second feed fluid through the inner cavity of the tubular secondary winding.
  • the known device relates to a highly efficient device for the conversion of electrical energy into heat due to the presence of direct contact between the heated fluid and the heating surface in the internal cavity of the secondary short-circuited tubular winding.
  • To produce steam in a known device it is necessary to either reach the temperature of the tubular winding over 212 degrees or preheat the feed water before it is fed into the tubular winding.
  • the latter is carried out by introducing an additional tubular short-circuited secondary winding, designed to preheat the fluid before it is fed into the main short-circuited tubular winding for evaporation.
  • the amount of steam produced by such a device directly depends on the feed rate (flow rate) of the liquid.
  • the known device belongs to the class of direct-flow steam generators, where the movement of liquid and steam through the pipes is carried out by the method of forced head using a feed pump that provides for overcoming the impedance of the movement of the vapor-liquid medium through the pipes and the specified vapor pressure at the outlet.
  • a common disadvantage of this method, implemented in all types of steam generators, is the low heat storage capacity of pipes (see p. 266 in the book by AP Kovalev "Steam generators: A textbook for universities.” - Moscow: Energoatomizdat, 1985.- 386, silt .).
  • Also known induction heater fluid adopted for the prototype, containing a flat ferromagnetic core with rods, on which is wound a primary winding connected to an alternating current source, and inductively connected to the primary winding through the core of the heat exchanger for the heated fluid, supplied branch pipes for the entrance and exit of the heated fluid and made of tubular elements arranged in the plane of the turns of the primary winding, each and which is designed as a coil looped around the respective core rod thus disposed in mezhkatushechnom space portions of the tubular elements are truncated, and the truncated portions of the tubular elements covering adjacent rods and arranged in one plane, are connected integrally with them (RU 2263418 C2)
  • the total internal cavity of the heat exchanger cannot be used to design a once-through steam generator, in which the heated medium under the pressure of the feed pump sequentially turns from liquid to vapor as it moves through the internal cavity of the continuous pipe.
  • This is the principle of its operation, in violation of which the steam generator will operate with the risk of local overheating of the pipes in places where the speed of the coolant movement slows down. Therefore, the device adopted for the prototype cannot be used to efficiently generate steam.
  • a particular significant disadvantage of the prototype is the fundamental in the design of the permanent connection in the mega-space of the truncated sections of tubular elements, covering adjacent rods in the same plane. This plane is perpendicular to the magnetic induction vector of the primary winding.
  • the secondary tubular winding made of short-circuited coils around each rod, which are electrically tubular conductors, the maximum current density falls on the sections of the tubular conductor close to the diametral plane of the tubular conductor perpendicular to the direction of the magnetic induction vector.
  • a permanent connection made in the zone of maximum current density during operation is subject to destruction from this current and reduces the reliability of the device as a whole.
  • the problem solved by the claimed invention is the creation of a reliable induction electric steam generator with increased steam capacity while reducing the metal intensity and overall dimensions of the steam generator.
  • an electric steam generator including a ferromagnetic core with rods, primary windings located in the form of coils on rods and electrically insulated from them, is a common tubular secondary winding located in a magnetic field in isolation and covering all the rods of the ferromagnetic core that forms a closed coil around each rod, characterized in that the coils of the common tubular secondary winding located in the inter-batten space, electrically parallel parallel and external in the plane of the pipe diameter parallel to the magnetic induction vector of the rods, and at least one remote element connected externally to the coils in the plane of the diameters of the pipes parallel to the magnetic induction vector rods.
  • the ferromagnetic core is made three-phase.
  • the distance elements are cylindrical with a diameter equal to the diameter of the tubular secondary winding.
  • FIG. 1 shows a general view of a three-phase electric steam generator (axonometry); figure 2 - tubular secondary winding (axonometric).
  • the electric steam generator is made on the basis of a three-phase transformer with a flat ferromagnetic core (1) with rods (2), on which the primary windings are located in the form of coils (3).
  • the primary winding in the form of coils (3) is connected to a source of electric alternating current through taps (4).
  • the total tubular secondary winding (5) is made of solid pipe and has a supply (6) and outlet (7) nozzles.
  • the total tubular secondary winding (5) of the electric steam generator is insulated in a magnetic field and rolled up so that it covers all the rods (2) of a flat ferromagnetic core (1) with rings around each rod (2).
  • the one-piece outer connection (8) of the turns of the common tubular winding (5) in the mezzanine space is made in the plane of the diameter of the pipe parallel to the vector of magnetic induction in the rods (2).
  • the sections of the rings of the common tubular winding (5), located outside the inter-coil space, are separated from each other by the size of the pipe diameter and between them by means of a one-piece connection (8) are installed remote cylindrical elements (9), which provide rigidity to the structure and complement short circuit coil.
  • the diameter of the distance tubular elements is equal to the diameter of the pipe of the secondary tubular winding.
  • Such a short-circuit implementation of the currents of the secondary tubular winding corresponds to the physical processes occurring in the secondary short-circuited winding, due to which the device is simple in design and does not cause additional energy losses leading to overheating or destruction.
  • the device obtained according to the invention is insensitive to the parameters of the phase shift of the supply voltage, which is also its advantage.
  • the length of the pipe, the number of short-circuited coils around each rod (2) are determined by thermal calculation.
  • the described electric steam generator works as follows. Initially, the movement of water is ensured by supplying it under pressure through the supply pipe (6) into the internal cavity of the common tubular secondary winding (5). Then the primary windings (3) through the taps (4) is connected to the AC network. As a result, the primary windings induce alternating magnetic flux in the rods (2). Under the action of alternating magnetic flux in short-circuited around each rod (2) coils of the common tubular winding (5), formed with the help of permanent connections (8), a strong current is induced, heating the common tubular secondary winding (5). Heat energy passes to the water moving in the inner cavity of the common tubular secondary winding (5).
  • water evaporates and the resulting steam is discharged through the discharge pipe (7).
  • the magnitude of the current heating the total tubular winding (5), its length and heat storage capacity when the device in accordance with the present invention is executed are not conflicting parameters, which makes it possible to create compact and reliable steam generators in the design process.
  • the continuity of the total tubular secondary winding (5) and the uniformity of its heating by electric current over the entire length ensures the full implementation of the principle of the direct-flow steam generator.
  • the temperature of the primary winding has increased by 96 ° C compared with the initial temperature at the beginning of the test. Then by appropriate recalculation On the same core, a 40 KW steam generator was made, while it had 4 turns of the secondary tubular winding on each rod of a three-phase core, and the total length of the copper pipe was 10.32 m. It turned out in the range of 120 - 130 kg of steam / hour.
  • the temperature of the primary winding of the transformer has reached a steady-state value, which is 108 ° C higher than the initial temperature, while remaining within the acceptable value for the insulation of the primary winding.
  • the device can be used as a direct-flow steam generator in a certain power range without loss of reliability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Induction Heating (AREA)

Abstract

L'invention concerne des dispositifs de conversion d'énergie électrique en énergie thermique et de génération d'échange de chaleur, et peut être utilisée lors du chauffage de liquides, comme dans des systèmes de chauffage et d'alimentation en vapeur d'eau chauffée de locaux industriels ou d'habitation, ainsi que dans d'autres domaines où il est nécessaire de chauffer et faire évaporer des milieux en circulation. Ce générateur de vapeur électrique comprend un noyau ferromagnétique plan avec des tiges servant à créer un champ magnétique clos entre elles, des enroulements primaires disposés sous forme de bobines sur les tiges et isolés électriquement de ces dernières, et un enroulement tubulaire secondaire commun. L'enroulement tubulaire secondaire commun est disposé dans le champ magnétique de manière isolée et entoure toutes les tiges du noyau ferromagnétique de sorte que plusieurs spires closes soient formées autour de chaque tige. Les spires du tube situées dans l'espace entre les bobines, sont connectées électriquement en parallèle de manière inamovible vers l'extérieur dans le plan du diamètre du tube parallèlement au vecteur d'induction magnétique des tiges. A la périphérie dans l'espace entre les tubes et entre les spires se trouvent un ou plusieurs éléments de séparation cylindriques connectés à l'extérieur avec les spires par une connexion inamovible dans le plan des diamètres des tubes parallèles au vecteur d'induction magnétique des tiges. L'utilisation de cette invention permet d'augmenter la fiabilité et ainsi que la capacité de production de vapeur du générateur de vapeur.
PCT/RU2017/000721 2017-08-24 2017-09-29 Générateur de vapeur électrique WO2019039960A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17922300.3A EP3675598A4 (fr) 2017-08-24 2017-09-29 Générateur de vapeur électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2017129929A RU2658658C1 (ru) 2017-08-24 2017-08-24 Электрический парогенератор
RU2017129929 2017-08-24

Publications (1)

Publication Number Publication Date
WO2019039960A1 true WO2019039960A1 (fr) 2019-02-28

Family

ID=62713600

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2017/000721 WO2019039960A1 (fr) 2017-08-24 2017-09-29 Générateur de vapeur électrique

Country Status (3)

Country Link
EP (1) EP3675598A4 (fr)
RU (1) RU2658658C1 (fr)
WO (1) WO2019039960A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3835641A1 (fr) * 2019-12-13 2021-06-16 Saipem S.A Installation sous-marine de chauffage d'un effluent diphasique liquide/gaz circulant à l'intérieur d'une enveloppe sous-marine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2691726C1 (ru) * 2018-09-07 2019-06-18 Общество с ограниченной ответственностью "В-Плазма" Прямоточный электрический парогенератор
RU2736270C1 (ru) * 2020-07-06 2020-11-13 Владимир Михайлович Шипилов Электрический пароперегреватель

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1999446A (en) 1933-10-06 1935-04-30 James K Delano Transformer coupled induction heater
US4602140A (en) * 1984-11-01 1986-07-22 Mangels Industrial S.A. Induction fluid heater
RU2263418C2 (ru) 2001-07-18 2005-10-27 Карманов Евгений Дмитриевич Индукционный нагреватель текучих сред
RU2013125924A (ru) * 2013-06-05 2014-12-10 Владимир Михайлович Шипилов Электрический парогенератор

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2138137C1 (ru) * 1998-02-11 1999-09-20 Карманов Евгений Дмитриевич Индукционный нагреватель текучих сред
RU2226046C2 (ru) * 2001-04-12 2004-03-20 Комсомольский-на-Амуре государственный технический университет Электроводонагреватель трансформаторного типа

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1999446A (en) 1933-10-06 1935-04-30 James K Delano Transformer coupled induction heater
US4602140A (en) * 1984-11-01 1986-07-22 Mangels Industrial S.A. Induction fluid heater
RU2263418C2 (ru) 2001-07-18 2005-10-27 Карманов Евгений Дмитриевич Индукционный нагреватель текучих сред
RU2013125924A (ru) * 2013-06-05 2014-12-10 Владимир Михайлович Шипилов Электрический парогенератор

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A.P. KOVALEV. M.: "Energoatomizdat", 1985, article "Steam generators: College textbook", pages: 266
See also references of EP3675598A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3835641A1 (fr) * 2019-12-13 2021-06-16 Saipem S.A Installation sous-marine de chauffage d'un effluent diphasique liquide/gaz circulant à l'intérieur d'une enveloppe sous-marine
US20210180436A1 (en) * 2019-12-13 2021-06-17 Saipem S.A. Subsea Installation for Heating a Two-Phase Liquid/Gas Effluent Circulating Inside a Subsea Casing

Also Published As

Publication number Publication date
EP3675598A4 (fr) 2021-05-19
RU2658658C1 (ru) 2018-06-22
EP3675598A1 (fr) 2020-07-01

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