WO2008136633A2 - Appareil servant à réchauffer un liquide - Google Patents

Appareil servant à réchauffer un liquide Download PDF

Info

Publication number
WO2008136633A2
WO2008136633A2 PCT/KR2008/002544 KR2008002544W WO2008136633A2 WO 2008136633 A2 WO2008136633 A2 WO 2008136633A2 KR 2008002544 W KR2008002544 W KR 2008002544W WO 2008136633 A2 WO2008136633 A2 WO 2008136633A2
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
heat generating
generating tube
present
heating apparatus
Prior art date
Application number
PCT/KR2008/002544
Other languages
English (en)
Other versions
WO2008136633A3 (fr
Inventor
Sung Don Park
Original Assignee
Sung Don Park
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 Sung Don Park filed Critical Sung Don Park
Publication of WO2008136633A2 publication Critical patent/WO2008136633A2/fr
Publication of WO2008136633A3 publication Critical patent/WO2008136633A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/142—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between

Definitions

  • the present invention is directed to a fluid heating apparatus and, more specifically, to a fluid heating apparatus capable of obtaining hot heating water by low electric power and heating up wide area with low cost.
  • a boiler is an apparatus that generates thermal energy using energy source such as petroleum, gas or electricity, and heats up heat carrier, e. g. water, brine or oil (hereinafter referred to as "fluid"in general) to heat a certain area.
  • the boiler can be classified into an oil- fired boiler, gas-fired boiler and electric boiler according to the energy source.
  • the oil-fired boiler and gas-fired boiler use fossil fuel as a combustion substance.
  • An electric boiler is advantageous in that the installation and operation are convenient compared to the oil-fired boiler and gas-fired boiler because the electric boiler uses electricity as energy source.
  • the electric boiler poses a problem of expensive electric charges. Therefore, the electric boiler is not suitable for heating large areas.
  • the electric boiler has low energy efficiency because the boiler heats a hot wire to obtain hot heating water. Furthermore, the electric boiler frequently breaks down by short circuit caused by a disconnection of the hot wire. Disclosure of Invention
  • Another object of the present invention is to provide a fluid heating apparatus that can operate the heating apparatus with low cost by heating the fluid with low electric power and high efficiency.
  • a further object of the present invention is to provide a fluid heating apparatus that can reduce manufacturing cost of the apparatus with simple structure.
  • Still further object of the present invention is to provide a fluid heating apparatus that can inhibit breakdown and accident of the apparatus.
  • Yet still further object of the present invention is to provide a fluid heating apparatus that can heat wide area with low cost.
  • the present invention provides a fluid heating apparatus for heating up fluid by electric power comprising: a plurality of heat generating tubes closely arranged each other in rows and lines, and having an internal passageway for allowing the fluid to flow therethrough; a planar heater provided on an outer surface of the each heat generating tube so as to heat up the fluid passing through the internal passageway using thermal energy generated by electric power; an electrode arranged on the outer surface of the planar heater at both sides for supplying electric power; and a plurality of U-shaped connection tubes provided to connect adjacent heat generating tube at both ends thereof so that the fluid can be heated when the fluid passes through the internal passageway of the heat generating tube.
  • the heat generating tube may be connected in consecutive series by the connection tube.
  • the fluid is heated up by a plurality of heat generating tubes arranged in rows and lines in consecutive series. As a result, it is possible to extend heating time, thereby raising the temperature of the fluid at a fast rate.
  • the fluid heating apparatus of the present invention is capable of reducing energy consumption and operation cost because the apparatus adopts a planar heater having very high energy efficiency.
  • the fluid heating apparatus of the present invention provides an effect that the apparatus can heat up a large amount of fluid with low electric power, thus improving energy efficiency.
  • the fluid heating apparatus of the present invention provides an effect that it is possible to reduce manufacturing cost, occurrence of breakdown and accident because the apparatus employs a simple structure.
  • the fluid heating apparatus can get hot heating fluid with low electric power, it is possible to heat wide region efficiently.
  • FIG. 1 is a perspective view showing a fluid heating apparatus in accordance with the present invention
  • FIG. 2 is a cross-sectional view taken along line II-II in Fig. 1;
  • FIG. 3 is a cross-sectional view taken along line Hi-Ill in Fig. 2;
  • FIG. 4 is a schematic view showing an example of heating apparatus using the present invention.
  • FIG. 5 is a schematic view showing an example of a fan heater using the present invention.
  • FIG. 6 is a comparative diagram showing an operational performance of a fan heater.
  • a fluid heating apparatus of the present invention comprises a plurality of heat generating tubes (10).
  • the heat generating tube (10) has an internal passageway (12) inside of the tube for allowing fluid to pass through the tube.
  • the fluid may be water, brine, oil or air etc.
  • the heat generating tube (10) is preferably made of a material having a heat resistant and low expansion characteristics, such as quartz tube or ceramic tube.
  • the number of heat generating tube (10) is one or more at least, and can be determined variously according to the heating capacity of the apparatus. If the heat generating tube (10) is provided in a small number, they can be arranged side by side along a vertical line. If the heat generating tube (10) is provided in a large number, they can be closely arranged each other in rows and lines as shown in Fig. 1. The shape and number of the heat generating tube (10) can be changed according to the heating capacity of the apparatus.
  • the fluid heating apparatus of the present invention also comprises a planar heater
  • the planar heater (20) is a kind of resistors and can be formed into a thin film by coating a conductive material on the heat generating tube (10).
  • the planer heater (20) has advantageous properties such as operability at a low power level and high energy efficiency.
  • a plurality of electrodes (30) for applying an electric current is attached on the outer surface of the planar heater (20).
  • the electrodes (30) are spaced apart from each other by a predetermined distance.
  • Each of the electrodes (30) is formed into a ring shape to extend along an outer circumference of the heat generating tube (10) and preferably made of silver.
  • the electrodes (30) of the heat generating tube (10) are connected in series.
  • the planar heater (20) generates heat of elevated temperature to heat up the heat generating tube (10), whereby the fluid flowing through the internal passageway (12) of the heat generating tube (10) is heated to a high temperature.
  • the fluid heating apparatus includes a plurality of connection tubes (40) provided to connect each heat generating tube (10) in consecutive series.
  • the connection tube (40) has a form of U-shape, and has a connection passageway
  • connection tube (40) connects an outlet port (12a) of the heat generating tube
  • FIG. 4 is a schematic view showing an example of heating apparatus utilizing the present invention.
  • a fluid heating apparatus (50) is connected to a radiator pipeline
  • a heat generating tube of upstream side (10a) is connected to one side of the radiator pipeline (60), and a heat generating tube of downstream side (10b) is connected to the other side of the radiator pipeline
  • heating water introduced into the internal passageway (12) of the heat generating tube of upstream side (10a) passes through a plurality of heat generating tubes (10) connected in consecutive series.
  • the heating water heated up to a high temperature because the heating water passes through a plurality of heat generating tubes (10) for a long time.
  • the heating water heated up to a high temperature is discharged from the heat generating tube of downstream side (10b), and introduced to the radiator pipeline (60).
  • the heating water of a high temperature can heat up the heating region (A) efficiently.
  • the present inventor compared the performance of a heating apparatus of the present invention with a conventional heating apparatus of heat wire type.
  • the heating apparatus of the present invention advantageous in that the apparatus can obtain a high temperature of heating water with low electric power, thus improving energy efficiency.
  • the present invention is not limited thereto.
  • the present invention may be installed in roads, bridge, and airport runways etc. to keep the surfaces from freezing.
  • Fig 5 shows a fan heater using a fluid heating apparatus of the present invention.
  • the fluid heating apparatus (50) is installed inside of a fan heater
  • a heat generating tube of upstream side (10a) is connected to a blower (72), and a heat generating tube of downstream side (10b) is connected to an air discharge outlet (74).
  • the blower (72) draws an air from the outside into the fan heater (70) and blows the drawn air into a heat generating tube of upstream side (10a).
  • the drawn air passes through an internal passageway (12) of a plurality of heat generating tubes (10) arranged in consecutive series.
  • a plurality of planar heaters (20) provided on an outer surface of the heat generating tube (10) heats up the air passing through the internal passageway (12).
  • An air can be heated up to a high temperature at a fast rate because the air passes through all heat generating rube (10) arranged in series for a long time.
  • the heated air is exhausted from an air discharge outlet (74) after passing through a heat generating tube of downstream side (10b).
  • the discharged warm air can heat a wide indoor area (B) efficiently.
  • the second embodiment of the present invention uses planar heater (30) that is activated at low power level and has very high energy efficiency. Therefore, it is possible to minimize energy consumption and thus reduce the cost of running a fan heater.
  • the simple structure of the present invention also makes it possible to reduce the manufacturing cost of the fan heater, and to ensure a small size and light weight.
  • the use of the planar heater does not produce toxic material to a human being. Therefore, the fan heater of the present invention can supply warm air in an environment-friendly manner.
  • a fan heater (70) of the present invention and conventional fan heater of heat pipe type are used respectively to heat up a space of 10m 3 .
  • a velocity of discharged air was measured at a distance of 20cm from the air discharge outlet.
  • the test result shows that airflow resistance of a fan heater of the present invention less than that of a conventional fan heater.
  • a fan heater of the present invention can supply warm air further compared to a conventional fan heater of heat pipe type.
  • Electromagnetic wave emitted from a fan heater was measured at a distance of 20cm from the air discharge outlet.
  • Air heating rate was measured at a distance of 20cm from the air discharge outlet by measuring the temperature of the air at regular intervals. The result is shown in Fig. 6.
  • the temperature of the air was 45 0 C when 20 seconds passes after the operation of the fan heater, and 95 0 C when 120 seconds passes.
  • a fan heater utilizing the present invention can obtain warm air with low energy consumption, heat air to a high temperature rapidly, and send the warm air further with high pressure.
  • a fan heater utilizing the present invention emits far- infrared ray beneficial to a human being. This allows a user to improve physical condition.
  • the test result shows that airflow resistance of a fan heater of the present invention less than that of a conventional fan heater.
  • a fan heater of the present invention can supply warm air further compared to a conventional fan heater of heat pipe type.
  • the present invention can be applied to a heating apparatus or fan heater for heating up various fluids by electric power.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)

Abstract

Appareil servant à réchauffer un liquide au moyen d'un courant électrique et comprenant: une pluralité de tubes (10) générant de la chaleur, disposés à proximité les uns des autres en rangées et en colonnes et possédant un passage interne (12) à travers lequel peut passer le liquide; un élément chauffant (20) plat situé sur une surface extérieure de chaque tube (10), de manière à réchauffer le liquide circulant dans le passage interne (12) au moyen de l'énergie thermique générée par le courant électrique; une électrode (30) placée sur la surface extérieure de l'élément chauffant (20) plat des deux côtés afin d'effectuer l'alimentation en courant électrique; une pluralité de tubes de liaison (40) en forme de U servant à relier le tube (10) contigu au niveau de ses deux extrémités, de façon à pouvoir réchauffer le liquide quand celui-ci circule dans le passage interne (12) du tube (10) générant de la chaleur.
PCT/KR2008/002544 2007-05-04 2008-05-06 Appareil servant à réchauffer un liquide WO2008136633A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20070043568 2007-05-04
KR10-2007-0043568 2007-05-04

Publications (2)

Publication Number Publication Date
WO2008136633A2 true WO2008136633A2 (fr) 2008-11-13
WO2008136633A3 WO2008136633A3 (fr) 2009-01-15

Family

ID=39944123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/002544 WO2008136633A2 (fr) 2007-05-04 2008-05-06 Appareil servant à réchauffer un liquide

Country Status (1)

Country Link
WO (1) WO2008136633A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5367604A (en) * 1992-04-24 1994-11-22 Fisher & Paykel Limited Humidifier apparatus and/or gases distribution chambers and/or temperature probe
US6793012B2 (en) * 2002-05-07 2004-09-21 Valeo, Inc Heat exchanger
KR20050032898A (ko) * 2003-10-02 2005-04-08 박성돈 전기보일러
KR20060099720A (ko) * 2005-03-14 2006-09-20 가재엽 튜브형 원적외선 히터

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5367604A (en) * 1992-04-24 1994-11-22 Fisher & Paykel Limited Humidifier apparatus and/or gases distribution chambers and/or temperature probe
US6793012B2 (en) * 2002-05-07 2004-09-21 Valeo, Inc Heat exchanger
KR20050032898A (ko) * 2003-10-02 2005-04-08 박성돈 전기보일러
KR20060099720A (ko) * 2005-03-14 2006-09-20 가재엽 튜브형 원적외선 히터

Also Published As

Publication number Publication date
WO2008136633A3 (fr) 2009-01-15

Similar Documents

Publication Publication Date Title
KR20070081242A (ko) 전기 온풍기용의 유도가열 발열체와 이를 이용한 온풍기
Patel et al. Performance study of solar air heater duct with gap in V-rib with symmetrical gap and staggered ribs
US9121602B2 (en) Steam generator
KR20150028468A (ko) 전기 순간온수기용 가열장치
Pandey et al. Thermo-hydraulic performance enhancement of solar air heater (SAH) having multiple arcs with gap shaped roughness element on absorber plate
CN201724400U (zh) 带空气加湿器的冷凝式燃气热水装置
CN204214115U (zh) 燃气热水器及其复合式热交换器
CN108645019A (zh) 一种双燃气装置及燃气热水器
KR20100123947A (ko) 탄소나노튜브를 이용한 온풍기
CN105890149A (zh) 一种新型半导体即热式液体电加热器
WO2008136633A2 (fr) Appareil servant à réchauffer un liquide
CN102589118B (zh) 一种零碳、无焰、节能的工频电磁感应式热水加热器
KR20140062275A (ko) 면상발열체를 이용한 온풍기
Liu et al. Heat transfer and pressure drop characteristics of the tube bank fin heat exchanger with fin punched with flow redistributors and curved triangular vortex generators
JP2012007857A (ja) 輻射装置
Jansangsuk et al. Experimental study on heat transfer and pressure drop in a channel with triangular V-ribs
KR100749802B1 (ko) 전기보일러
CN110595067B (zh) 蜗壳状冷凝式燃气换热设备及换热方法
KR100903520B1 (ko) 에너지 절약형 급속 난방 열풍기
RU2333432C1 (ru) Конденсационная универсальная водогрейная установка наружного размещения
RU82301U1 (ru) Водонагреватель
JP2004125363A (ja) 電熱式暖房機のヒーターの構造
RU2610985C1 (ru) Водогрейный жаротрубный котёл с турбулизаторами улиточного типа
CN212930470U (zh) 一种应用于间接燃烧的热风机的换热器
CN206648308U (zh) 燃气采暖热水炉

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08753341

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase in:

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 15/03/2010)

122 Ep: pct application non-entry in european phase

Ref document number: 08753341

Country of ref document: EP

Kind code of ref document: A2