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WO2011052874A1 - Appareil de chauffage - Google Patents

Appareil de chauffage Download PDF

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Publication number
WO2011052874A1
WO2011052874A1 PCT/KR2010/004449 KR2010004449W WO2011052874A1 WO 2011052874 A1 WO2011052874 A1 WO 2011052874A1 KR 2010004449 W KR2010004449 W KR 2010004449W WO 2011052874 A1 WO2011052874 A1 WO 2011052874A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceramic
ceramic plate
housing
water
heating
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.)
Ceased
Application number
PCT/KR2010/004449
Other languages
English (en)
Korean (ko)
Inventor
박만욱
박성원
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.)
Coway Co Ltd
Original Assignee
Woongjin Coway Co Ltd
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
Priority claimed from KR1020090104563A external-priority patent/KR100982702B1/ko
Application filed by Woongjin Coway Co Ltd filed Critical Woongjin Coway Co Ltd
Priority to US12/922,642 priority Critical patent/US8687952B2/en
Publication of WO2011052874A1 publication Critical patent/WO2011052874A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
    • 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
    • F24H1/121—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 using electric energy supply

Definitions

  • the present invention relates to a heating apparatus having a ceramic heater.
  • Fig. 1A is a sectional view of a heating apparatus with a conventional ceramic heater
  • Fig. 1B is a perspective view of a conventional ceramic heater.
  • the heating device 1 includes a housing 10, a ceramic heater 20 mounted in the housing 10, and a ceramic heater 20 in the housing 10. It comprises a fixing member 30 for fixing.
  • the housing 10 and the ceramic heater 20 are formed in a cylindrical shape and are usually disposed coaxially.
  • the fixing member 30 is provided with a water inlet communicating with the internal space of the ceramic heater 20, and a water outlet is formed in the housing 10. Therefore, the water entering the inlet flows through the outer space of the ceramic heater 20 after passing through the inner space of the ceramic heater 20 and is discharged through the outlet.
  • water flows through the inner space of the ceramic heater 20 it is heated in contact with the inner wall of the ceramic heater 20, and when water flows through the outer space of the ceramic heater 20, it is heated in contact with the outer wall of the ceramic heater 20. The heated water is discharged to the outlet.
  • the heating wire 22 installed inside the conventional ceramic heater 20 is disposed close to the outer wall side of the ceramic heater 20, heating by the inner wall of the ceramic heater 20 is performed. There is little effect and it is mainly heated only by the outer wall. In this way, since the water obtained in the heating device 1 is mainly heated when flowing through the external space of the ceramic heater 20, the actual heating time becomes very short, and thus the heating wire of the ceramic heater 20 in order to obtain hot water of high temperature. It is not desirable for energy efficiency because high power must be applied to (22).
  • Korean Patent No. 0880773 proposes a fluid heating device that improves heating efficiency. Looking at a specific configuration thereof, a flat ceramic heater 102 having a terminal lead wire 101 for power supply is disclosed. ), And a gap in which the fluid to be heated is moved in the direction of the ceramic heater 102 to the upper and lower sides of the ceramic heater 102 and has a horizontal moving fluid path so that the fluid heated by the ceramic heater 102 is discharged.
  • the flow path forming plate 106 coupled with the fluid passage so that the fluid on the horizontal moving fluid path can be vertically moved to the fluid path of the next layer, and the uppermost separation plate 105
  • An upper cover 111 coupled with an inlet hole 110 for supplying a fluid for heating, and an outlet hole 112 for discharging the heated fluid to an outer surface of the lowermost partition plate 105.
  • the lower cover 113 is to be characterized in that the finish is configured.
  • the plate-shaped ceramic heater 102 is provided, and the spacer plate 105 and the flow path forming plate 106 are disposed so that flow paths are formed above and below the ceramic heater 102, Water introduced through the inlet hole 110 is heated while being in contact with the upper and lower surfaces of the ceramic heater 120 and is discharged through the outlet hole 112. According to such a configuration, since heat is transferred by contacting water with a wide surface of the flat plate ceramic heater 102, heating efficiency may be improved.
  • FIG. 2 shows the flow path of the fluid heating device configured as described above.
  • water introduced from the upper inlet hole 110 exits the lower outlet hole 112 through the flat ceramic heater 102, and the water of the ceramic heater 102.
  • the ceramic heater 102 When the upper surface flows, the ceramic heater 102 is always in contact with the heater, but when the lower surface of the ceramic heater 102 flows, the ceramic heater 102 does not come into contact with the ceramic heater 102 (see the section marked with "O").
  • the inflow of water is high and the water pressure is high, the water may flow through the entire flow path, but if the inflow is low or the water pressure is low, the water cannot be guaranteed to flow through the entire flow path, and if not, it is indicated as "O".
  • flowing water does not come into contact with the ceramic heater 102.
  • the document proposes to increase the aspect ratio of the cross section of the heating flow path in order to prevent this.
  • the width of the heating flow path is three times larger than the height of the heating flow path (i.e. flat). This configuration increases the heating area per unit volume, increases the heating efficiency and speeds up the flow, thereby increasing air absorption and The opportunity for bubble growth can be eliminated, thereby preventing thermal shock of the ceramic heater 102.
  • the above document discloses the use of a plurality of ceramic heaters 102, but the heat generation amount of the plurality of ceramic heaters 102 is the same. There is.
  • the present invention has been devised to solve the problems of the prior art, by which the water is heated in contact with the front surface of the ceramic heater to increase the heat transfer efficiency, to prevent the thermal shock due to the generation of bubbles, to provide a heating device capable of precise temperature control
  • the water is heated in contact with the front surface of the ceramic heater to increase the heat transfer efficiency, to prevent the thermal shock due to the generation of bubbles, to provide a heating device capable of precise temperature control
  • a ceramic heater having a plurality of plate-shaped ceramic plate, and a housing on which the ceramic heater is mounted and formed with an inlet and an outlet;
  • the ceramic plates 122 and 124 are mounted in the housing so that bubbles generated in the fluid by the heating of the ceramic plates 122 and 124 rise to the edges of the ceramic plate. It is arranged upright inside the 140 and side by side, the outlet 144 provides a heating device formed on the upper side of the housing 140.
  • the ceramic heater includes a first ceramic plate disposed on the inlet side and a second ceramic plate disposed on the outlet side, and wherein the first ceramic plate and the second ceramic plate A partition is installed in between.
  • the first ceramic plate and the second ceramic plate is attached to one end of the housing and spaced apart from the other end, the partition wall is attached to the other end of the housing and The wealth is spaced apart.
  • a flow path is formed wider at the outlet side than at the inlet side.
  • a gap is formed between an upper end of the ceramic plate and the housing.
  • the outlet is formed higher than the inlet.
  • the outlet side is inclined so as to be disposed upward so that bubbles generated in the fluid by heating are easily discharged.
  • an area of the ceramic plate is formed larger than the cross-sectional area of the flow path.
  • a heating wire provided inside the ceramic plate is disposed at the center in the thickness direction of the ceramic plate.
  • power applied to the first ceramic plate and the second ceramic plate is different.
  • the power applied to the second ceramic plate is greater than the power applied to the first ceramic plate.
  • a fixed power is applied to the first ceramic plate and a variable power is applied to the second ceramic plate.
  • Fig. 1A is a sectional view of a heating apparatus with a conventional ceramic heater
  • Fig. 1B is a perspective view of a conventional ceramic heater.
  • FIG. 2 is a perspective view of a heating apparatus with another conventional ceramic heater.
  • FIG 3 is a perspective view of a ceramic heater according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of the heating apparatus with the ceramic heater according to the embodiment of the present invention seen from above.
  • FIG. 5 is a cross-sectional view of the heating apparatus with the ceramic heater according to the embodiment of the present invention seen from the front.
  • FIG. 6 is a cross-sectional side view of a heating apparatus with a ceramic heater according to an embodiment of the present invention.
  • FIG. 7 is a sectional side view of a heating apparatus according to another embodiment of the present invention.
  • FIG 3 is a perspective view of a ceramic heater 120 according to an embodiment of the present invention.
  • the ceramic heater 120 includes a first ceramic plate 122 and a second ceramic plate 124 disposed in parallel.
  • the first ceramic plate 122 and the second ceramic plate 124 are formed in the same plate shape.
  • Hot wires 123 are disposed in the ceramic plates 122 and 124.
  • the heating wire 123 (not shown) is centered in the thickness direction of the ceramic plates 122 and 124 so that heat emitted from the heating wire 123 may be uniformly transmitted to both surfaces of the ceramic plates 122 and 124. Is placed.
  • a fixing member 126 is installed at one side of the ceramic heater 120 so that two ceramic plates 122 and 124 may be fixed to the fixing member 126.
  • the fixing member 126 may be coupled to one end of the housing 140 to be described later.
  • Terminals 122a and 124a for supplying power to the ceramic plates 122 and 124 are provided on the opposite side of the fixing member 126 to which the ceramic plates 122 and 124 are fixed.
  • the terminals 122a and 124a may be connected to a controller (not shown), respectively, to control power supplied thereto.
  • the thickness of the ceramic plates 122 and 124 When the thickness of the ceramic plates 122 and 124 is thin, the heat transfer rate is fast and the heating time is short, so that it is possible to heat to the target temperature in a short time, but the mechanical strength becomes weak with the temperature change, making it difficult to commercialize. On the contrary, when the thickness of the ceramic plates 122 and 124 is thick, the heat transfer rate is slow and the heating time is delayed, and when the power is cut off, post-heating may occur due to latent heat due to the temperature saturated on the heater surface. Therefore, the experiments in consideration of such performance and safety, it was found that the thickness of the ceramic plate (122, 124) is suitable to design about 1 ⁇ 3mm.
  • the gap between the ceramic plates 122 and 124 is also an important factor. If the gap between the two plates 122 and 124 is too narrow, the amount of fluid flowing between the plates is too small to obtain a sufficient amount of hot water. No problem may arise due to temperature rise. On the other hand, if the spacing between the plates 122 and 124 is too wide, the amount of fluid increases, so that the amount of heat is insufficient to satisfy the performance. Therefore, experiments in consideration of the performance and safety, it was found that the distance between the two plates (122, 124) is preferably maintained at 2 ⁇ 15mm.
  • FIG. 4 is a cross-sectional view of a heating device 100 having a ceramic heater 120 according to an embodiment of the present invention
  • FIG. 5 is a heating device having a ceramic heater 120 according to an embodiment of the present invention.
  • (100) is a sectional view seen from the front
  • FIG. 6 is a sectional view seen from the side of the heating apparatus 100 provided with the ceramic heater 120 which concerns on embodiment of this invention.
  • the heating device 100 includes a ceramic heater 120, a housing 140, a cap member 160, and a bracket 180.
  • the ceramic plates 122 and 124 are fixedly disposed inside the housing 140.
  • One end of the housing 140 may also be coupled to the bracket 180.
  • the ceramic plates 122 and 124 are formed shorter than the length of the housing 140. Therefore, when the ceramic plates 122 and 124 are installed inside the housing 140, the ends of the ceramic plates 122 and 124 may be spaced apart from the cap member 160, which will be described later, so that water may flow between the spaced apart portions. .
  • the cap member 160 is coupled to the other end of the housing 140.
  • the partition member 162 is attached to the cap member 160 so that the partition member 162 is disposed between the two ceramic plates 122 and 124 when the cap member 160 is coupled to the other end of the housing 140.
  • the partition wall 162 extends in the longitudinal direction of the housing 140 to divide the space between the two ceramic plates 122 and 124.
  • the partition wall 162 is formed to be shorter than the length of the housing 140, so that the partition wall 162 is spaced apart from one end of the housing 140 when the partition wall 162 is installed inside the housing 140. Thus, water can flow between the spaced apart.
  • the ceramic plates 122 and 124 are installed upright in the housing 140 and side by side. That is, the plate-shaped ceramic plates 122 and 124 are installed vertically, so that bubbles generated by the heating of the ceramic plates 122 and 124 can rise upward.
  • the inlet 142 and the outlet 144 are formed in the housing 140.
  • the inlet 142 is formed at the side where the first ceramic plate 122 is disposed, and the outlet 144 is the second ceramic plate 124. Is formed on the side where it is disposed.
  • the inlet 142 and the outlet 144 are provided at one end of the housing 140, that is, at the side to which the fixing member 126 of the ceramic plates 122 and 124 is coupled.
  • the inlet 142 and the outlet 144 is formed on the upper side of the housing 140. In particular, since the outlet 144 is disposed at the upper portion, the heated water in the housing 140 may be pushed upward and discharged.
  • the area of the ceramic plates 122 and 124 is larger than the cross-sectional area of a heating flow path.
  • S the area of the ceramic plates 122 and 124
  • P the cross-sectional area of the heating channel
  • P the cross-sectional area of the heating channel
  • the housing 140 At one end of the housing 140, water is diverted through the spaced space between the fixing member 126 and the partition wall 162. The redirected water flows through the space between the second ceramic plate 124 and the partition wall 162. At this time, water flows from one end of the housing 140 toward the other end (hereinafter referred to as "euro 3"). At the other end of the housing 140, water is diverted through the spaced space between the second ceramic plate 124 and the cap member 160. The redirected water flows between the second ceramic plate 124 and the other side of the housing 140. At this time, water flows toward one end from the other end of the housing 140 (hereinafter referred to as "euro 4"). Water is discharged to the outside through the water outlet 144 at the other end of the housing 140.
  • water is heated by the first ceramic plate 122. Specifically, it is heated by one surface of the first ceramic plate 122 in the flow path 1, and heated by the other surface of the first ceramic plate 122 in the flow path 2. Both surfaces of the first ceramic plate 122 emit the same heat, so water in the flow path 1 and the flow path 2 is heated by the same amount of heat.
  • the water is heated by the second ceramic plate 124 in the flow path 3 and the flow path 4. Specifically, the flow path 3 is heated by one surface of the second ceramic plate 124, and in the flow path 4 is heated by the other surface of the second ceramic plate 124. Since both surfaces of the second ceramic plate 124 emit the same heat, the water is heated by the same amount of heat in the flow path 3 and the flow path 4.
  • the water flowing into the inlet 142 is heated in contact with all surfaces of the two ceramic plates 122 and 124 while flowing through the channels 1, 2, 3, and 4, so that heat transfer is efficiently performed without wasting heat. That is, since the ceramic plates 122 and 144 are installed upright in the vertical direction, and the outlet port 144 is disposed at the upper portion thereof, the water may be discharged while being pushed upwards without being drained out immediately. Thus, the water receives heat while contacting all surfaces of the ceramic plates 122 and 124.
  • the width of the flow path was wider from the inlet 142 toward the outlet 144. 4 and 5, when the width of the flow path 1 is t1, the width of the flow path 2 is t2, the width of the flow path 3 is t3 and the width of the flow path 4 is t4, the relationship of t1 ⁇ t2 ⁇ t3 ⁇ t4 is Hold. In this way, by forming a wider flow path from the inlet 142 toward the outlet 144, the flow rate of the initial inlet is increased to suppress bubble growth (aggregation of fine bubbles), and the generated bubbles can be discharged at a high flow rate. have.
  • a gap G may be formed between the upper ends of the ceramic plates 122 and 124 and the housing 140 to easily discharge the generated bubbles.
  • the bubble exits to the higher side (that is, the outlet 144 side) to prevent local overheating of the ceramic heater by the bubble. You can prevent it.
  • the heating device 100 may be installed to be inclined at a predetermined angle. That is, when the heating device 100 is installed to be inclined upwardly, the water outlet 144 may be released to the water outlet 144 even if bubbles are generated inside the heating device 100, thereby preventing the problem of thermal shock. It is. Although not shown in the drawing, the water outlet 144 must be opened in the opposite direction as in FIG. 6, that is, upwards (left upward in the drawing) so that the bubbles can easily escape upwards.
  • the ceramic plates 122 and 124 are disposed in the housing 140, and the water introduced into the inlet 142 is the housing 140 and the ceramic plate.
  • the water flows through the flow paths 1, 2, 2, 3, and 4 formed by the 122, 124, and the partition walls 162, and is discharged to the water outlet 144.
  • the ceramic plates 122 and 124 are arranged upright side by side in the housing 140, as shown in Figs. 4 and 5, the fluid (that is, water) is the flow path 1, flow path 2, flow path 3, flow path 4 As it flows, bubbles generated in the fluid by the heating of the ceramic plates 122 and 124 rise to the upper side of the edges of the ceramic plates 122 and 124 (ie, the upper side in the region A of FIG. 3).
  • breakage of the ceramic plates 122 and 124 is caused by thermal shock.
  • thermal shock When thermal air is not water but heat exchanges with the ceramic plates 122 and 124, the heat exchange is smaller than that of the ceramic plates 122 and 124 which exchange heat with the surrounding water. A portion of the ceramic plates 122 and 124 that exchange heat with air is overheated to generate a temperature difference. The shock applied by the temperature difference is called a thermal shock.
  • the ceramic plates 122 and 124 are disposed upright inside the housing, and since the bubbles are small in specific gravity compared to water, the bubbles are directed to the upper side of the edges of the ceramic plates 122 and 124. Will rise.
  • the heating wires 123 (not shown) are arranged at the edges of the ceramic plates 122 and 124. Since it comes into contact with the region A in which the heating wire 123 (not shown) is disposed, the thermal shock applied to the ceramic plates 122 and 124 by the bubbles may be reduced.
  • the power applied to the second ceramic plate 124 disposed on the outlet port 144 is greater than the power applied to the first ceramic plate 122 disposed on the inlet port 142.
  • 300 watts of power may be applied to the first ceramic plate 122
  • 700 watts of power may be applied to the second ceramic plate 124.
  • relatively low heat is generated in the first ceramic plate 122 on the inlet 142 side to heat the water to a certain level, and then, when passing through the second ceramic plate 124, the set temperature is maintained. The water may be heated to be finally discharged to the outlet 144.
  • the first ceramic plate 122 allows a small range of temperature adjustment
  • the second ceramic plate 124 allows a large range of temperature adjustment, thereby efficiently transferring heat and reducing power consumption. It is.
  • the second ceramic plate 124 may be configured by applying variable power. Such power control is in charge of the control unit.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal 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)

Abstract

L'invention porte sur un appareil de chauffage comprenant : un élément chauffant en céramique possédant une pluralité de plaques en céramique en forme de plaque et un logement dans lequel est installé l'élément chauffant en céramique et dans lequel une entrée d'eau et une sortie d'eau sont définies, dans lequel, afin de permettre aux bulles formées dans un fluide au moyen du chauffage par les plaques en céramique (122, 124) d'apparaître sur les bords des plaques en céramique lorsque le fluide circule à travers un passage formé le long des plaques en céramique (122, 124), les plaques en céramique (122, 124) sont disposées en parallèle et verticalement dans le logement (140), et la sortie d'eau (144) est définie sur le dessus du logement (140).
PCT/KR2010/004449 2009-06-30 2010-07-08 Appareil de chauffage Ceased WO2011052874A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/922,642 US8687952B2 (en) 2009-06-30 2010-07-08 Heating apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0104563 2009-10-30
KR1020090104563A KR100982702B1 (ko) 2009-06-30 2009-10-30 가열 장치

Publications (1)

Publication Number Publication Date
WO2011052874A1 true WO2011052874A1 (fr) 2011-05-05

Family

ID=43922665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/004449 Ceased WO2011052874A1 (fr) 2009-06-30 2010-07-08 Appareil de chauffage

Country Status (1)

Country Link
WO (1) WO2011052874A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2689945A1 (fr) * 2012-07-24 2014-01-29 Behr GmbH & Co. KG Dispositif de chauffage
US9752757B2 (en) 2013-03-07 2017-09-05 Quarkstar Llc Light-emitting device with light guide for two way illumination

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200269038Y1 (ko) * 2001-12-01 2002-03-21 이종표 열매체유를 이용한 전기 보일러
KR20050034779A (ko) * 2003-10-10 2005-04-15 주식회사 워터웍스 유진 비데 온도조절장치
JP2007032273A (ja) * 2006-10-19 2007-02-08 Matsushita Electric Ind Co Ltd 人体局部洗浄装置
KR100880773B1 (ko) * 2008-01-23 2009-02-02 (주) 씨엠테크 유체 가열장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200269038Y1 (ko) * 2001-12-01 2002-03-21 이종표 열매체유를 이용한 전기 보일러
KR20050034779A (ko) * 2003-10-10 2005-04-15 주식회사 워터웍스 유진 비데 온도조절장치
JP2007032273A (ja) * 2006-10-19 2007-02-08 Matsushita Electric Ind Co Ltd 人体局部洗浄装置
KR100880773B1 (ko) * 2008-01-23 2009-02-02 (주) 씨엠테크 유체 가열장치

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2689945A1 (fr) * 2012-07-24 2014-01-29 Behr GmbH & Co. KG Dispositif de chauffage
WO2014016342A1 (fr) * 2012-07-24 2014-01-30 Behr Gmbh & Co. Kg Dispositif de chauffage
US10302331B2 (en) 2012-07-24 2019-05-28 Mahle International Gmbh Heating device
US9752757B2 (en) 2013-03-07 2017-09-05 Quarkstar Llc Light-emitting device with light guide for two way illumination

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