WO2012124879A1 - Chaudière polyvalente du type horizontal - Google Patents

Chaudière polyvalente du type horizontal Download PDF

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Publication number
WO2012124879A1
WO2012124879A1 PCT/KR2011/009011 KR2011009011W WO2012124879A1 WO 2012124879 A1 WO2012124879 A1 WO 2012124879A1 KR 2011009011 W KR2011009011 W KR 2011009011W WO 2012124879 A1 WO2012124879 A1 WO 2012124879A1
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WO
WIPO (PCT)
Prior art keywords
combustion chamber
horizontal
multipurpose
heat exchange
boiler
Prior art date
Application number
PCT/KR2011/009011
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English (en)
Korean (ko)
Inventor
이동호
최영환
Original Assignee
(주)귀뚜라미
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 (주)귀뚜라미 filed Critical (주)귀뚜라미
Publication of WO2012124879A1 publication Critical patent/WO2012124879A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C1/00—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/16—Induction apparatus, e.g. steam jet, acting on combustion products beyond the fire
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
    • 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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means

Definitions

  • the present invention relates to a horizontal multi-purpose boiler, and more particularly to a horizontal multi-purpose boiler having a multi-purpose combustion chamber capable of burning firewood and oil (or gas) combustion at the bottom and a heat exchange unit at the top.
  • boilers used for heating or supplying hot water to homes, various buildings, and facilities include firewood boilers, oil boilers, and gas boilers, depending on the fuel used.
  • Oil boilers and gas boilers have the advantage of relatively high thermal efficiency and control of oil injection or gas supply to maintain a constant combustion state, which makes the maintenance and management of the boiler convenient, but has the disadvantage of high fuel costs.
  • the firewood boiler uses heat generated by burning firewood (wood, wood, waste wood, etc.), but its structure is simple and the fuel cost is very low.However, the thermal efficiency is relatively low and the fuel must be continuously supplied. The disadvantage is that it needs to be checked at any time.
  • the conventional hybrid boiler has a disadvantage in that its size is too large because it simply integrates two types of boilers into one boiler.
  • the conventional hybrid boiler still needs a method for improving the thermal efficiency through structural improvement.
  • Another object of the present invention is to provide a horizontal multi-purpose boiler with improved thermal efficiency through structural improvement of the heat exchange unit.
  • Still another object of the present invention is to provide a horizontal multi-purpose boiler having improved thermal efficiency through structural improvement of a combustion chamber.
  • Still another object of the present invention is to provide a horizontal multi-purpose boiler having improved thermal efficiency by improving an intake / exhaust method.
  • the present invention provides a horizontal multi-purpose boiler having the following configuration.
  • Horizontal multi-purpose boiler according to the invention, the housing constituting the body of the boiler; A multipurpose combustion chamber positioned below the housing and configured to burn at least one of firewood, oil and gas; A plurality of water pipe rostols arranged to allow a firewood to be loaded in the multipurpose combustion chamber; A fuel inlet installed to be opened and closed at the front of the multipurpose combustion chamber; A burner mounted on a front surface of the multipurpose combustion chamber so as to be positioned below the water pipe rostol; A vertical tube connected to the multipurpose combustion chamber at a rear side of the housing; A heat exchanger positioned above the housing and connected to the multipurpose combustion chamber through the vertical connection and providing a discharge path and a heat exchange path of combustion gas generated in the multipurpose combustion chamber; A water chamber installed inside the housing to surround the multipurpose combustion chamber, the vertical pipe, and the heat exchange unit; An exhaust flue that is installed to be connected to the heat exchanger at a front side of the housing and provides a discharge path of the combustion gas; Adjacent to the exhaust flue
  • the horizontal multipurpose boiler of the present invention may further include a hot water supply coil installed in the water chamber in the heat exchange unit.
  • the horizontal multi-purpose boiler of the present invention may further include a horizontal water pipe installed in the upper front side of the inside of the multi-purpose combustion chamber, and a screening film integrally formed between the upper inner surface of the multi-purpose combustion chamber and the horizontal water pipe.
  • the heat exchange part is constant between the heat exchanger leading edge chamber connected to the vertical pipe, the heat exchanger trailing edge chamber connected to the exhaust flue, and the heat exchanger leading edge chamber and the heat exchanger trailing edge chamber. It may include multiple associations arranged at intervals.
  • the heat exchange part is connected to the vertical pipe at the rear end and connected to the exhaust flue at the front end, and the plurality of pipes connected to the water chamber through the inside of the pipe up and down It may include vertical water pipes.
  • the vertical water pipes may be arranged in a zigzag shape, and the heat exchange part may further include a resistance plate installed between the vertical water pipes.
  • a plurality of heat exchange fins may be attached to the inner surface of the multi-purpose combustion chamber.
  • the water pipe lost stalls may be arranged at a narrow interval on the rear side at a wide interval on the front side of the multi-purpose combustion chamber.
  • the water pipe lost stalls may be arranged in a zigzag form obliquely.
  • the rear cleaning port is installed on the upper rear of the housing; It may further include a front cleaning sphere installed on the top front of the housing.
  • the exhaust fan is mounted to the outside of the front cleaning sphere, it may be connected to the exhaust pipe mounted to the inside of the front cleaning sphere.
  • Horizontal multi-purpose boiler of the present invention has the following advantages.
  • both the firewood and oil (or gas) combustion is possible in one multi-purpose combustion chamber, reducing the overall size of the boiler.
  • the heat efficiency of the boiler can be improved by increasing the heat exchange area of the combustion gas in the heat exchange unit.
  • FIG. 1 and 2 are side and front cross-sectional views of a horizontal multi-purpose boiler according to a first embodiment of the present invention.
  • 3 and 4 are side and front cross-sectional views of the horizontal multi-purpose boiler according to the second embodiment of the present invention.
  • 5 and 6 are a plan sectional view and a front sectional view showing a heat exchange part structure of a horizontal multi-purpose boiler according to a third embodiment of the present invention.
  • 7 and 8 are a plan sectional view and a front sectional view showing a heat exchange part structure of a horizontal multi-purpose boiler according to a fourth embodiment of the present invention.
  • FIG. 9 is a front sectional view showing a combustion chamber structure of a horizontal multi-purpose boiler according to a fifth embodiment of the present invention.
  • FIG. 10 is a schematic view showing the water pipe roast structure of the horizontal multi-purpose boiler according to a modification of the present invention.
  • Figure 1 is a side cross-sectional view of a horizontal multi-purpose boiler according to a first embodiment of the present invention
  • Figure 2 is a front sectional view of a horizontal multi-purpose boiler according to a first embodiment of the present invention.
  • the horizontal multi-purpose boiler includes a housing 10, a multi-purpose combustion chamber 11, a heat exchanger 12, a vertical pipe 13, a water chamber 14, a water pipe roast 15, and a fuel inlet. 16, the burner 17, the rear cleaning port 21, the front cleaning port 22, the exhaust pipe 23, the exhaust fan 24, and the exhaust flue 25 are comprised.
  • the housing 10 constitutes a body of a horizontal multi-purpose boiler.
  • the multipurpose combustion chamber 11 is positioned at the lower portion of the housing 10, and the heat exchanger 12 is positioned horizontally at the upper portion thereof.
  • the multipurpose combustion chamber 11 and the heat exchanger 12 are connected through a vertical connection 13 at the rear side of the housing 10.
  • a water chamber 14 is surrounded by the multipurpose combustion chamber 11, the heat exchanger 12, and the vertical pipe 13.
  • the multipurpose combustion chamber 11 is a place where at least one of the firewood, the oil and the gas is made.
  • the multipurpose combustion chamber 11 forms an ellipse (or circle) when viewed from the front.
  • a plurality of water pipe roasts 15 are arranged in a row from the front side to the rear side at the center or lower portion of the ellipse (or circle) so that firewood can be loaded.
  • the water pipe loss stalls 15 may be arranged at a wide interval at the front side and at a narrow interval at the rear side as in the present embodiment, or may be arranged at regular intervals as in the second embodiment described later.
  • the water pipe loss stall 15 is connected by welding to the water chamber 14 surrounding the multi-purpose combustion chamber 11.
  • the water pipe rostol 15 may be modified in various forms, for example, may be disposed to be inclined in a zigzag form as shown in FIG.
  • An integrated fuel inlet 16 is installed at the front of the multipurpose combustion chamber 11, and the firewood can be introduced into the multipurpose combustion chamber 11 by opening and closing the fuel inlet 16.
  • the burner 17 is mounted on the lower end of the fuel inlet 16 so as to be located below the water pipe roast 15. The burner 17 injects a flame into the multi-purpose combustion chamber 11 to combust oil or gas or to ignite the firewood loaded on the water pipe roast 15.
  • the heat exchanger 12 is connected to the multi-purpose combustion chamber 11 through the vertical linkage 13, and the combustion gas generated in the multi-purpose combustion chamber 11 enters the heat exchanger 12 along the vertical linkage 13.
  • the heat exchanger 12 provides a discharge path and a heat exchange path of the combustion gas.
  • the heat exchange part 12 is composed of a heat exchange part leading edge chamber 18, an association 19, a heat exchange part trailing edge chamber 20.
  • the heat exchange part leading edge chamber 18 is directly connected to the vertical pipe 13, and the heat exchange part trailing edge chamber 20 is directly connected to the exhaust flue 25.
  • the tube 19 is arranged between the heat exchanger leading edge chamber 18 and the heat exchanger trailing edge chamber 20 at regular intervals to exchange heat with the water chamber 14.
  • a rear cleaning opening 21 is installed, and at the front end of the heat exchange part trailing edge chamber 20, that is, at the top front face of the housing 10.
  • the front cleaning opening 22 is installed. Leakage inspection and cleaning of the heat exchanger 12 can be easily performed through the rear cleaning port 21 and the front cleaning port 22.
  • Exhaust flue 25 is installed at the upper end of the front side of the housing 10 and is connected to the after-heat chamber of the heat exchange unit 20, and combustion gas discharged through the pipe 19 is discharged to the outside through the exhaust flue 25.
  • An elbow-shaped exhaust pipe 23 is mounted on the inside of the front cleaning hole 22, and is located inside the after-heating chamber 20 of the heat exchange part, and an exhaust fan 24 is mounted on the outside of the front cleaning hole 22 to exhaust gas 23. Connected with The exhaust fan 24 allows the combustion gas discharged through the plumbing 19 to be smoothly discharged through the exhaust flue 25.
  • the exhaust pipe 23 may have the form of a venturi tube.
  • the multi-purpose combustion chamber 11 a blower for supplying air, a flame sensor for determining whether normal combustion is made, a door switch unit for detecting the opening and closing of the fuel inlet 16, Initial ignition ignition and fuel supply, ash trays and the like can be installed.
  • the water chamber 14 may be provided with a temperature sensing unit and a water level sensing unit, and the air blower 24 may be provided with a wind pressure sensing unit.
  • control unit for controlling the overall operation of the boiler, the power supply unit for supplying current to the control unit, the circulation pump for supplying hot water to the heat storage tank or heating device when the water temperature of the boiler rises above a certain temperature, various kinds of boiler
  • an output unit for visually or audibly outputting a function and a state may be installed.
  • a hot water supply coil may be formed in the heat exchange part, and a horizontal water pipe and a screen may be installed in the multi-purpose combustion chamber. This will be described with reference to the second embodiment.
  • 3 and 4 are side and front cross-sectional views of the horizontal multi-purpose boiler according to the second embodiment of the present invention.
  • the hot water supply coil 32 is installed in the water chamber 14 and connected to the hot water inlet and outlet formed on the upper end of the housing 10. By adding the hot water supply coil 32 in this way, heating and hot water supply can be combined.
  • the hot water supply coil 32 may be installed so as to surround the association (No. 19 of FIG. 1) of the heat exchanger 12.
  • the horizontal water pipe 30 and the screening film 31 are further installed on the upper front side inside the multi-purpose combustion chamber 11.
  • the horizontal water pipe 30 is connected by welding to the left and right water chambers 14 surrounding the multipurpose combustion chamber 11, similarly to the water pipe lost stall 15, and the shielding film 31 is horizontal to the upper inner surface of the multipurpose combustion chamber 11. It is integrally formed between the water pipes (30).
  • the horizontal water pipe 30 and the screening membrane 31 not only serve to block the flame from coming out when the fuel inlet 16 is opened, but also increase the heat exchange area to improve thermal efficiency.
  • the burner 17 is mounted on the fuel inlet 16.
  • the fuel inlet 16 and the door (burner port) dedicated to the burner 17 are separated from each other. do.
  • the heat exchange part may have various modified structures.
  • the third and fourth embodiments to be described next relate to a modification of the heat exchanger.
  • 5 and 6 are a plan sectional view and a front sectional view showing a heat exchange part structure of a horizontal multi-purpose boiler according to a third embodiment of the present invention.
  • the heat exchange part of the third embodiment is a structure in which all of the above-described leading chamber, the associated pipe, and the trailing edge chamber are integrated into one pipe 19.
  • the plumbing 19 is arranged with a plurality of vertical water pipes 26. That is, the vertical water pipes 26 are formed to penetrate up and down the inside of the pipe 19 to be connected to the water chamber 14, and as shown in FIG. 6, the vertical water pipes 26 are arranged in a zigzag form. . Therefore, the combustion gas discharged through the association 19 is able to heat exchange on the heat transfer surface sufficiently improves the thermal efficiency of the boiler.
  • Reference numeral 29 in the drawing represents the flow of the combustion gas.
  • 7 and 8 are a plan sectional view and a front sectional view showing a heat exchange part structure of a horizontal multi-purpose boiler according to a fourth embodiment of the present invention.
  • the heat exchange part of the fourth embodiment is a structure in which the front, rear, and rear tail chambers of the first embodiment are integrally formed as one connection 19.
  • a plurality of vertical water pipes 26 are arranged in the pipe 19, and a resistance plate 27 is provided between the vertical water pipes 26 adjacent to the left and right.
  • the resistance plate 27 allows the combustion gas to exchange heat sufficiently on the heat transfer surface, and transfers heat to the water chamber 14 through the vertical water pipe 26 to improve thermal efficiency.
  • the multipurpose combustion chamber may have various modified structures in addition to the above-described second embodiment.
  • the fifth embodiment to be described next relates to such an example.
  • FIG. 9 is a front sectional view showing a combustion chamber structure of a horizontal multi-purpose boiler according to a fifth embodiment of the present invention.
  • a plurality of heat exchange fins 28 may be attached to the inner surface of the multipurpose combustion chamber 11 by welding.
  • the heat exchange fins 28 transfer heat to the water chamber 14 surrounding the combustion chamber 11 and increase the heat exchange area to improve thermal efficiency.

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

Abstract

La présente invention porte sur une chaudière polyvalente du type horizontal, dans laquelle une chambre de combustion polyvalente, qui peut brûler du bois de chauffage et du mazout (ou de l'essence), est disposée dans la partie inférieure de celle-ci, et une partie d'échange de chaleur est disposée dans la partie supérieure de celle-ci. Plusieurs étages de tubes d'eau sont disposés de sorte que du bois de chauffage soit accumulé dans la chambre de combustion polyvalente et qu'un orifice d'entrée de combustible pouvant s'ouvrir soit disposé dans la surface avant de la chambre de combustion polyvalente. Un brûleur est disposé à l'extrémité inférieure de l'orifice d'entrée de combustible au-dessous des étages de tubes d'eau. La chambre de combustion polyvalente et la partie d'échange de chaleur sont reliées l'une à l'autre par un tube de fumée vertical s'étendant en direction de la surface arrière d'une enveloppe. La partie d'échange de chaleur forme un trajet d'évacuation et un trajet d'échange de chaleur pour le gaz de combustion produit dans la chambre de combustion polyvalente. Une chambre à eau est disposée de manière à entourer la chambre de combustion polyvalente, le tube de fumée vertical et la partie d'échange de chaleur. Un conduit de fumée d'évacuation est disposé vers la surface avant de l'enveloppe et relié à la partie d'échange de chaleur pour former un trajet d'évacuation pour les gaz de combustion. En outre, un ventilateur d'évacuation est disposé vers la surface avant de l'enveloppe, dans une position adjacente au conduit de fumée d'évacuation de manière à évacuer progressivement le gaz de combustion à travers le conduit de fumée d'évacuation.
PCT/KR2011/009011 2011-03-15 2011-11-24 Chaudière polyvalente du type horizontal WO2012124879A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110022684A KR101296409B1 (ko) 2011-03-15 2011-03-15 횡형 다목적 보일러
KR10-2011-0022684 2011-03-15

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WO2012124879A1 true WO2012124879A1 (fr) 2012-09-20

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WO (1) WO2012124879A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103353163A (zh) * 2013-07-17 2013-10-16 河南新友公路技术有限公司 一种燃油热水炉
CN104197316A (zh) * 2014-09-11 2014-12-10 衡阳衡锅锅炉有限公司 一种气固双燃料锅炉
CN107461735A (zh) * 2017-09-18 2017-12-12 瑞昌市渝瑞实业有限公司 卧式有机肥料制备装置及其余热利用方法
US10151476B2 (en) 2015-04-06 2018-12-11 Central Boiler Inc. Boiler with access to heat exchangers
US10371413B2 (en) 2015-04-06 2019-08-06 Central Boiler, Inc. Boiler with access to heat exchangers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106885370A (zh) * 2016-05-24 2017-06-23 无锡市金城环保炊具设备有限公司 一种燃气炉节能水箱技术
KR101895714B1 (ko) * 2017-04-11 2018-09-05 이민영 화장품용 브러시 용기
CN111649480A (zh) * 2020-06-05 2020-09-11 安阳市福士德锅炉有限责任公司 一种新型水冷膜式壁热水锅炉

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KR20000050726A (ko) * 1999-01-14 2000-08-05 권오혁 소각기능을 갖춘 기름보일러 겸용 나무 보일러
JP2006292308A (ja) * 2005-04-13 2006-10-26 Eiken Industries Co Ltd 液体加熱装置
KR20100035367A (ko) * 2008-09-26 2010-04-05 (주)귀뚜라미 하이브리드 타입 보일러
KR20100004200U (ko) * 2008-10-14 2010-04-22 오은섭 나무 보일러

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Publication number Priority date Publication date Assignee Title
KR20000050726A (ko) * 1999-01-14 2000-08-05 권오혁 소각기능을 갖춘 기름보일러 겸용 나무 보일러
JP2006292308A (ja) * 2005-04-13 2006-10-26 Eiken Industries Co Ltd 液体加熱装置
KR20100035367A (ko) * 2008-09-26 2010-04-05 (주)귀뚜라미 하이브리드 타입 보일러
KR20100004200U (ko) * 2008-10-14 2010-04-22 오은섭 나무 보일러

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103353163A (zh) * 2013-07-17 2013-10-16 河南新友公路技术有限公司 一种燃油热水炉
CN104197316A (zh) * 2014-09-11 2014-12-10 衡阳衡锅锅炉有限公司 一种气固双燃料锅炉
US10151476B2 (en) 2015-04-06 2018-12-11 Central Boiler Inc. Boiler with access to heat exchangers
US10371413B2 (en) 2015-04-06 2019-08-06 Central Boiler, Inc. Boiler with access to heat exchangers
CN107461735A (zh) * 2017-09-18 2017-12-12 瑞昌市渝瑞实业有限公司 卧式有机肥料制备装置及其余热利用方法

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KR20120105106A (ko) 2012-09-25

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