WO2004008039A1 - Energy saving electric boiler - Google Patents

Energy saving electric boiler Download PDF

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Publication number
WO2004008039A1
WO2004008039A1 PCT/KR2003/001214 KR0301214W WO2004008039A1 WO 2004008039 A1 WO2004008039 A1 WO 2004008039A1 KR 0301214 W KR0301214 W KR 0301214W WO 2004008039 A1 WO2004008039 A1 WO 2004008039A1
Authority
WO
WIPO (PCT)
Prior art keywords
hot water
storage tank
water storage
pipe body
heater
Prior art date
Application number
PCT/KR2003/001214
Other languages
French (fr)
Inventor
Haeng-Jo Heo
Sang-Chan Jang
Original Assignee
Haeng-Jo Heo
Sang-Chan Jang
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 Haeng-Jo Heo, Sang-Chan Jang filed Critical Haeng-Jo Heo
Priority to AU2003245072A priority Critical patent/AU2003245072A1/en
Publication of WO2004008039A1 publication Critical patent/WO2004008039A1/en

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
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • 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
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
    • F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
    • 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
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/208—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with tubes filled with heat transfer fluid

Definitions

  • the present invention relates to an electric boiler, and more particularly, to an energy saving electric boiler which can enhance efficiency of heating at an inexpensive cost as well as allow easy maintenance and repair.
  • the conventional is so designed that heat created from the heater is directly transmitted to fluid in the hot water tank to heat the same. Since the heater has a small surface area, only a small quantity of heat is transmitted from the heater to fluid, thereby degrading heat efficiency. If the heater is broken, operation of the electric boiler is suspended and water is completely drained out of the hot water storage tank before separating the broken heater from the hot water storage tank. As a result, the conventional electric boiler has difficulties in maintenance.
  • the electric boiler includes coupling pipes are projected for coupling with both ends of a heating water pipe which circulates through a heating area, and a heater for heating fluid within a hot water storage tank which is provided with overflow and drain valve coupling tubes.
  • the hot water storage tank is supported by supports, and contains at least one heater receiving section in the form of a pocket with a large surface area within the hot water storage tank.
  • At least one screw pipe communicating with the heater receiving section is provided in a lower portion of the hot water storage tank via welding in a fashion projecting from the hot water storage tank.
  • the screw tube is coupled with a heater which is heated up to about 600 to 900 ° C, and a fastening member having threads on the surface is screwed into the screw tube.
  • the hot water storage tank is installed on the supports at a predetermined height for assembly/separation of the heater to/from the heater receiving section which is erected vertical f om the bottom of the hot water storage tank, thereby increasing the height of the hot water storage tank.
  • this electric boiler is hardly installed in a structure having a relatively low ceiling height. Furthermore, heat created from the heater is not sufficiently transferred into the hot water storage tank via the heater receiving section.
  • the present invention has been made to solve the foregoing problems and it is an object of the present invention to provide an energy saving electric boiler which includes a number of indirect heating means each installed within a hot water storage tank in a horizontal direction and internally containing a heater, in which the indirect heating means are structured in the form of radiators based upon heat medium to allow simple separation of the heaters, whereby the convenience of maintenance is ensured, the size and height of the hot water storage tank is reduced, and the efficiency of heating is maximized.
  • Fig. 1 is a front elevation view of an energy saving electric boiler according to a preferred embodiment of the invention
  • Fig. 2 is a top plan view of the energy saving electric boiler according to a preferred embodiment of the invention.
  • Fig. 3 is a magnified sectional view of important parts of the energy saving electric boiler according to a preferred embodiment of the invention.
  • Fig. 4 is a side sectional view of the energy saving electric boiler in Fig. 3.
  • Fig. 1 is a front elevation view of an energy saving electric boiler according to a preferred embodiment of the invention
  • Fig. 2 is a top plan view of the energy saving electric boiler according to a preferred embodiment of the invention
  • Fig. 3 is a magnified sectional view of important parts of the energy saving electric boiler according to a preferred embodiment of the invention
  • Fig. 4 is a side sectional view of the energy saving electric boiler in Fig. 3.
  • the electric boiler 1 of the invention is designed so that electric heaters 4 can be readily separated from a hot water storage tank 2 without draining water from the hot water storage tank 2 in order to maximize heating efficiency, wherein the electric heaters 4 are installed in the hot water storage tank 2 to heat water therein, and coupling pipes 3 are projected from the hot water storage tank 2 to be coupled with both ends of hot water pipes which circulate through a heating area.
  • the heaters 4 having various angles from one another are installed in indirect heating means 5 within the hot water storage tank 2.
  • the indirect heating means 5 each include a pipe body 6 fixedly welded to the hot water storage tank 2, a heater receiving tube 7 fixedly welded to a lower inner portion of the pipe body 6, in which the heater 4 is screwed into the heater receiving tube 7, heating chambers 8 formed within the pipe body 6 at both sides of the heater receiving tube 7 and covers 9 welded to both ends of the pipe body 6.
  • Injection bodies 11 each with a cut-off valve 10 are mounted on both the welded covers 9 to vacuumize the inside of the pipe body 6.
  • a suitable quantity of a heat medium 12 is injected into the vacuum pipe tube 6 so that thermal circulation can be realized within the pipe body 6 by heating the heat medium 12 with the heater 4.
  • Radiator fins 13 having excellent heat transfer rate are fixedly wound around the pipe body 6 at predetermined intervals, so that heat generated from repeated vaporization and liquefaction of the heat medium 12 within the pipe body 6 can be rapidly transferred to water within the hot water
  • the indirect heating means 5 within the hot water storage tank 2 can be varied according to the size of the hot water storage tank 2 and the heating area.
  • the heat medium 12 may include acetone; thinner; mixed solution of distilled water, alcohol and sodium chloride; etc. having a lower flash point.
  • the injected quantity, of the heat medium 12 is regulated to about 1/10 of the volume of the pipe body 6.
  • the reference numeral 14 indicates a stand, and 15 indicates a supplementary water pipe.
  • the indirect heating means 5 are installed in a horizontal direction in the hot water storage tank 2 to reduce the height of the hot water storage tank 2 so that the electric boiler of the invention can be installed in a structure having a low ceiling height.
  • the heaters 4 are screwed into the indirect heating means 5 so that any broken heaters 4 can be readily repaired.
  • the radiator fins 13 are wound around the pipe bodies 6 heated by the heat media 12 so that latent heat from the heat media can be more rapidly transferred to water.
  • a number of the indirect heating means 5 pass through the center of the hot water storage tank 2 at different angles from one another, stacked one atop the other, so that latent heat transferred from the indirect heating means 5 is concentrated to the center of the hot water storage tank 2 to rapidly heat water thereby maximizing the efficiency of heating.
  • the invention is coupled to the hot storage water tank 2 in a direction horizontal thereto at angles different from one another.
  • the invention of imparts a simple overall structure to the electric boiler 1 so that the fabrication cost thereof can be saved.
  • the electric boiler 1 of the invention also can perform high efficient heating at lower heating cost relative to existing oil and electric boilers.
  • the heater 4 can be readily replaced to ensure convenient maintenance.
  • the present invention ensures a number of effects and advantages .

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)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The present invention relates to an energy saving electric boiler which can enhance efficiency of heating at an inexpensive cost as well as allow maintenance and repair. The present invention provideS an energy saving electric boiler which includes a number of indirect heating means each installed within a hot water storage tank in a horizontal direction and internally containing a heater, in which the indirect heating means are structured in the form of radiators based upon heat medium to allow simple separation of the heaters, whereby the convenience of maintenance is ensured, the size and height of the hot water storage tank is reduced, and the efficiency of heating is maximized.

Description

ENERGY SAVING ELECTRIC BOILER
Technical Field
The present invention relates to an electric boiler, and more particularly, to an energy saving electric boiler which can enhance efficiency of heating at an inexpensive cost as well as allow easy maintenance and repair.
Background Art In general, various structures of boilers are used for heating in various industrial sites, small sized houses and so on. These boilers can be generally divided into boilers using oil and boilers using electricity.
Currently, electric boilers are getting gradually popular in view of environmental friendliness and rise in petroleum cost . Such a conventional electric boiler installs a heater directly into a hot water tank to heat water.
However, the conventional is so designed that heat created from the heater is directly transmitted to fluid in the hot water tank to heat the same. Since the heater has a small surface area, only a small quantity of heat is transmitted from the heater to fluid, thereby degrading heat efficiency. If the heater is broken, operation of the electric boiler is suspended and water is completely drained out of the hot water storage tank before separating the broken heater from the hot water storage tank. As a result, the conventional electric boiler has difficulties in maintenance.
For example, where the conventional boiler is installed and operated in a flowering plant farm, if the heater is broken, hot water is drained out of the hot water storage tank as described above before replacing the heater so that the temperature within a green house rapidly drops causing enormous economic damage. As a result, electric heaters are not applied in farms at all.
In order to overcome the afore-described problem, the inventor proposed an energy saving electric boiler as disclosed in Korean Patent Application Serial No. 10-2001-0054893.
Following description will present the construction of this electric boiler. The electric boiler includes coupling pipes are projected for coupling with both ends of a heating water pipe which circulates through a heating area, and a heater for heating fluid within a hot water storage tank which is provided with overflow and drain valve coupling tubes. The hot water storage tank is supported by supports, and contains at least one heater receiving section in the form of a pocket with a large surface area within the hot water storage tank. At least one screw pipe communicating with the heater receiving section is provided in a lower portion of the hot water storage tank via welding in a fashion projecting from the hot water storage tank. The screw tube is coupled with a heater which is heated up to about 600 to 900°C, and a fastening member having threads on the surface is screwed into the screw tube.
However, in the above energy saving electric boiler, the hot water storage tank is installed on the supports at a predetermined height for assembly/separation of the heater to/from the heater receiving section which is erected vertical f om the bottom of the hot water storage tank, thereby increasing the height of the hot water storage tank. As a result, this electric boiler is hardly installed in a structure having a relatively low ceiling height. Furthermore, heat created from the heater is not sufficiently transferred into the hot water storage tank via the heater receiving section.
Disclosure of Invention
Therefore, the present invention has been made to solve the foregoing problems and it is an object of the present invention to provide an energy saving electric boiler which includes a number of indirect heating means each installed within a hot water storage tank in a horizontal direction and internally containing a heater, in which the indirect heating means are structured in the form of radiators based upon heat medium to allow simple separation of the heaters, whereby the convenience of maintenance is ensured, the size and height of the hot water storage tank is reduced, and the efficiency of heating is maximized.
Brief Description of the Drawings
The above and other objects, features and advantages of the present invention will be apparent from the following detailed description of a preferred embodiment of the invention in conjunction with the accompanying drawings, in which:
Fig. 1 is a front elevation view of an energy saving electric boiler according to a preferred embodiment of the invention;
Fig. 2 is a top plan view of the energy saving electric boiler according to a preferred embodiment of the invention;
Fig. 3 is a magnified sectional view of important parts of the energy saving electric boiler according to a preferred embodiment of the invention; and Fig. 4 is a side sectional view of the energy saving electric boiler in Fig. 3.
Best Mode for Carrying Out the Invention Reference will now be made in detail to a preferred embodiment of the present invention illustrated in the accompanying drawings, wherein Fig. 1 is a front elevation view of an energy saving electric boiler according to a preferred embodiment of the invention, Fig. 2 is a top plan view of the energy saving electric boiler according to a preferred embodiment of the invention, Fig. 3 is a magnified sectional view of important parts of the energy saving electric boiler according to a preferred embodiment of the invention, and Fig. 4 is a side sectional view of the energy saving electric boiler in Fig. 3.
The electric boiler 1 of the invention is designed so that electric heaters 4 can be readily separated from a hot water storage tank 2 without draining water from the hot water storage tank 2 in order to maximize heating efficiency, wherein the electric heaters 4 are installed in the hot water storage tank 2 to heat water therein, and coupling pipes 3 are projected from the hot water storage tank 2 to be coupled with both ends of hot water pipes which circulate through a heating area.
The heaters 4 having various angles from one another are installed in indirect heating means 5 within the hot water storage tank 2. The indirect heating means 5 each include a pipe body 6 fixedly welded to the hot water storage tank 2, a heater receiving tube 7 fixedly welded to a lower inner portion of the pipe body 6, in which the heater 4 is screwed into the heater receiving tube 7, heating chambers 8 formed within the pipe body 6 at both sides of the heater receiving tube 7 and covers 9 welded to both ends of the pipe body 6. Injection bodies 11 each with a cut-off valve 10 are mounted on both the welded covers 9 to vacuumize the inside of the pipe body 6. A suitable quantity of a heat medium 12 is injected into the vacuum pipe tube 6 so that thermal circulation can be realized within the pipe body 6 by heating the heat medium 12 with the heater 4. Radiator fins 13 having excellent heat transfer rate are fixedly wound around the pipe body 6 at predetermined intervals, so that heat generated from repeated vaporization and liquefaction of the heat medium 12 within the pipe body 6 can be rapidly transferred to water within the hot water storage tank 2.
The indirect heating means 5 within the hot water storage tank 2 can be varied according to the size of the hot water storage tank 2 and the heating area.
Available examples of the heat medium 12 may include acetone; thinner; mixed solution of distilled water, alcohol and sodium chloride; etc. having a lower flash point. The injected quantity, of the heat medium 12 is regulated to about 1/10 of the volume of the pipe body 6.
In the drawings, the reference numeral 14 indicates a stand, and 15 indicates a supplementary water pipe.
The invention of the above construction can be applied to various boilers which perform heating typically using hot water, and hereinafter application of the invention will be described.
In energization of the electric boiler 1 of the invention, the heaters 4 in the heater receiving tubes 7 of the pipe bodies
6 are activated to heat the heat media 12 in the heating chambers
8 at both sides of the heater receiving tubes 7. The heat media 12 are rapidly vaporized within the vacuum pipe bodies 6, and the vaporized heat media 12 transfer latent heat or heat of vaporization to the pipe bodies 6 and return to liquid, which flows down into the heating chambers 8. Then, the liquefied heat media are heated and vaporized again to repeat the above circulation. Upon being transferred to the pipe bodies 6, heat is rapidly transmitted via the radiator fins 13 surrounding the pipe bodies 6 into water within the hot water storage tank 2 to heat water. According to the invention, the indirect heating means 5 are installed in a horizontal direction in the hot water storage tank 2 to reduce the height of the hot water storage tank 2 so that the electric boiler of the invention can be installed in a structure having a low ceiling height. Also, the heaters 4 are screwed into the indirect heating means 5 so that any broken heaters 4 can be readily repaired. The radiator fins 13 are wound around the pipe bodies 6 heated by the heat media 12 so that latent heat from the heat media can be more rapidly transferred to water. As shown in Fig. 2, a number of the indirect heating means 5 pass through the center of the hot water storage tank 2 at different angles from one another, stacked one atop the other, so that latent heat transferred from the indirect heating means 5 is concentrated to the center of the hot water storage tank 2 to rapidly heat water thereby maximizing the efficiency of heating.
Industrial Applicability
According to the present invention of the above construction and operation, a number of indirect heating means
5 are coupled to the hot storage water tank 2 in a direction horizontal thereto at angles different from one another. The invention of imparts a simple overall structure to the electric boiler 1 so that the fabrication cost thereof can be saved. The electric boiler 1 of the invention also can perform high efficient heating at lower heating cost relative to existing oil and electric boilers. Furthermore, the heater 4 can be readily replaced to ensure convenient maintenance. As above, the present invention ensures a number of effects and advantages .
While the present invention has been described with reference to the particular illustrative embodiment, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the true spirit and scope of the present invention.

Claims

What is Claimed is:
1. An electric boiler (1) comprising: a hot water storage tank (2) ; electric heaters (4) installed in the hot water storage tank (2) in such a manner as to be readily separatable from the same without draining water from the hot water storage tank (2) ; coupling pipes (3) projected from the hot water storage tank (2) to be coupled with both ends of hot water pipes which circulate through a heating area; and indirect heating means (5) installed within the hot water storage tank (2) and having the electric heaters (4) installed therein at various angles from one another, wherein each of the indirect heating means (5) includes: - a pipe body (6) fixedly welded to the hot water storage tank (2),
- a heater receiving tube (7) fixedly welded to a lower inner portion of the pipe body (6) , the heater (4) being screwed into the heater receiving tube (7) , - heating chambers (8) formed within the pipe body
(6) at both sides of the heater receiving tube (7) and covers (9) welded to both ends of the pipe body (6) ,
- injection bodies (11) each mounted on both the welded covers (9) and having a cut-off valve (10) to vacuumize the inside of the pipe body (6) ,
- a suitable quantity of a heat medium (12) injected into the vacuum pipe tube (6) so that thermal circulation can be realized within the pipe body (6) by heating the heat medium
(12) with the heater (4) , and - radiator fins (13) having excellent heat transfer rate, fixedly around the pipe body (6) at predetermined intervals, whereby heat generated from repeated vaporization and liquefaction of the heat medium (12) within the pipe body (6) are rapidly transferred to water within the hot water storage tank (2) .
PCT/KR2003/001214 2002-07-16 2003-06-19 Energy saving electric boiler WO2004008039A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003245072A AU2003245072A1 (en) 2002-07-16 2003-06-19 Energy saving electric boiler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2002-0041683A KR100489934B1 (en) 2002-07-16 2002-07-16 Energy saving electric boiler
KR10-2002-0041683 2002-07-16

Publications (1)

Publication Number Publication Date
WO2004008039A1 true WO2004008039A1 (en) 2004-01-22

Family

ID=30113188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2003/001214 WO2004008039A1 (en) 2002-07-16 2003-06-19 Energy saving electric boiler

Country Status (4)

Country Link
KR (1) KR100489934B1 (en)
CN (1) CN1482412A (en)
AU (1) AU2003245072A1 (en)
WO (1) WO2004008039A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007069015A2 (en) 2005-12-13 2007-06-21 Deylon Sarl Cosmetic compositions based on essential oils and use thereof in pain relief

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228413A (en) * 1992-03-25 1993-07-20 Tam Raymond T Multiple boiler
JPH10103607A (en) * 1996-09-25 1998-04-21 Miura Co Ltd Control of electric boiler
US20020051633A1 (en) * 2000-11-02 2002-05-02 Kiho Kim Indirectly heating type of electric boiler apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990034256U (en) * 1998-01-15 1999-08-25 김만혁 Electric heater and hot water boiler combined heating
KR20000002883U (en) * 1998-07-13 2000-02-15 박이동 Sensible heat regenerative late night electric boiler
KR200242427Y1 (en) * 2001-05-15 2001-10-15 하권우 A triple-pipe type heat exchanger adopting high efficiency heat-medium radiator and a boiler adopting the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228413A (en) * 1992-03-25 1993-07-20 Tam Raymond T Multiple boiler
JPH10103607A (en) * 1996-09-25 1998-04-21 Miura Co Ltd Control of electric boiler
US20020051633A1 (en) * 2000-11-02 2002-05-02 Kiho Kim Indirectly heating type of electric boiler apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007069015A2 (en) 2005-12-13 2007-06-21 Deylon Sarl Cosmetic compositions based on essential oils and use thereof in pain relief

Also Published As

Publication number Publication date
AU2003245072A1 (en) 2004-02-02
KR20040007042A (en) 2004-01-24
KR100489934B1 (en) 2005-05-17
CN1482412A (en) 2004-03-17

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