EP3240975A1 - Feeding boiler for heating water or other thermal fluid lines with modular heat exchanger and cleaning system - Google Patents
Feeding boiler for heating water or other thermal fluid lines with modular heat exchanger and cleaning systemInfo
- Publication number
- EP3240975A1 EP3240975A1 EP14830421.5A EP14830421A EP3240975A1 EP 3240975 A1 EP3240975 A1 EP 3240975A1 EP 14830421 A EP14830421 A EP 14830421A EP 3240975 A1 EP3240975 A1 EP 3240975A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating water
- fluid lines
- thermal fluid
- boiler
- heat exchanger
- 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.)
- Granted
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
- F24H1/0063—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
- F23B50/12—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel being fed to the combustion zone by free fall or by sliding along inclined surfaces, e.g. from a conveyor terminating above the fuel bed
-
- 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
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H15/00—Cleaning arrangements for grates; Moving fuel along grates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
- F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/06—Systems for accumulating residues from different parts of furnace plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
-
- 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
- F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
-
- 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
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
-
- 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
- F24H9/0084—Combustion air preheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/02—Non-rotary, e.g. reciprocated, appliances having brushes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
-
- 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
- F24H2230/00—Solid fuel fired boiler
-
- 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
- F24H9/14—Arrangements for connecting different sections, e.g. in water heaters
- F24H9/146—Connecting elements of a heat exchanger
-
- 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
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1845—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel
Definitions
- the present application describes a feeding boiler for heating water or other thermal fluid lines comprising a burner (1) having an own cleaning system; a combustion chamber (2); an heat exchanger (3) comprising a modular set where each module (31) is constituted by a hollow central body (32) with cooling fins and two caps (33) coupled at opposed faces of said heat exchanger (3) , and a mechanical cleaning system (4) comprising of a group of cleaning modules (60) comprising a geometrical metallic structure
- the cleaning system of burner (1) used in the feeding boiler for heating water and other thermal fluid lines comprises an inflation antechamber (10), coupled to a centrifugal fan (11), and a post-chamber (12), and the internal volumes of the inflation antechamber (10) and the post-chamber (12) are connected through small circular orifices (15) .
- the cleaning system of burner (1), used in the feeding boiler for heating water or other thermal fluid lines comprises a scraper (17) whose lower surface is coincidental with the internal surface of post- chamber (12), and an actuator (19).
- the actuator (19) used in the feeding boiler for heating water or other thermal fluid lines is placed outside the inflation chamber (10) and acts upon the scraper (17) by means of a shaft from the actuator system (18).
- the feeding boiler for heating water or other thermal fluid lines comprises a feeding channel (13) connected to the post-chamber (12), and an electrical resistance (14) placed into one of the orifices connecting the internal volume of the inflation antechamber (10) and the one of the post-chamber (12), and having the feeding channel (13) some through holes (16).
- the combustion chamber of the feeding boiler for heating water of other thermal fluid lines comprises a set of two hollow cylinders (21) and
- the ends of one of the caps (20) used in the feeding boiler for heating water or other thermal fluid have coupled to them a redirecting component
- the caps (33) used in the feeding boiler for heating water or other thermal fluid lines seal together with the central body (32) and have two through holes, one at the upper end and other at the lower end of each cap (33), and a tubular interconnecting component (34) .
- the tubular interconnecting component (34) used in the feeding boiler for heating water or other thermal fluid lines consists in a tube (35), with two external machined channels at opposite ends of the interconnecting component (34), and O-rings (36).
- the feeding boiler for heating water or other thermal fluid lines comprises lower diverting boxes (41) and upper diverting boxes (51), respectively under and above the modules (31), each box (41, 51) diverting 180° the route of the gases.
- the brush (67) used in the feeding boiler for heating water or other thermal fluid lines comprises a rigid elongate metallic central profile (68) with metallic fibers (69), which are braided along all the length and both sides of central profile (68).
- the lower diverting boxes (41) used in the feeding boiler for heating water or other thermal fluid lines comprise a throttle type valve (42) acted by the toothed sprocket (44) coupled to the axis of rotation, and a central spinning shaft (43) that has sealing fins
- the screw-worm (71) of the feeding boiler for heating water or other thermal fluid lines transfers the ashes to outside the combustion chamber (2)
- the present invention describes a feeding boiler for heating water or other thermal fluid lines, comprising modular units of thermal transference, which can be jointly disposed by adding lateral modules of interconnection, thus forming the heat exchanger itself.
- each module from the cleaning system allows for a cleaning of two modules external faces.
- a soot or other combustion products accumulation would occur, in short / medium term, upon the external surfaces of the heat exchanger, what would increase the resistance to heat transfer and the loss of charge inside the route performed by the exhaust gases, whereby an overall thermal efficiency of the equipment where these module (s) would be installed would successively decrease.
- the object of the technology now disclosed is thus to develop a modular heat exchanger allowing the satisfaction of several thermal capacities, and that could be used for heating any thermal fluid, including water.
- the modular components can be built in an efficient manner, at a reduced cost, due to the fact that all of them have the same generic configuration. Similarly its assembly is simplified and to the measure of the thermal needs and available free space..
- the indexed cleaning system also presents as a characteristic its modularity. With inclusion of this cleaning system in the heat exchangers it is aimed to solve the problems associated with efficiency of thermal transfer, related to the accumulation of solid material resulting from burning fuel upon the heat exchangers walls. This way the thermal efficiency is maintained, as well as the reduction of maintenance operations frequency, and increases the useful lifetime of the heat exchangers.
- this type of heating boiler is the adequate solution, once that the modules can be carried separately and assembled in situ.
- the burner could be embedded into other industrial boilers burning biomass fuels to heat space and domestic hot water (DHW) , industrial procedures needing heat, and boilers for services such as swimming-pools, service buildings, agricultural explorations and residential condominiums .
- DHW heat space and domestic hot water
- Figure 1 illustrates a view from an embodiment of the heating boiler, where the reference numbers represent:
- Figure 2 illustrates a view from an embodiment of the burner used in the heating boiler, where the reference numbers represent:
- Figure 3 illustrates a view from an embodiment of the combustion chamber used in the heating boiler, where the reference numbers represent:
- Figure 4 illustrates a view from an embodiment of the combustion chamber used in the heating boiler, where the reference numbers represent:
- Figure 5 illustrates a view from an embodiment of the heat exchanger used in the heating boiler, where the reference numbers represent:
- Figure 6 illustrates an exploded view from an embodiment of the heat exchanger used in the heating boiler, where the reference numbers represent:
- Figure 7 illustrates a view from an embodiment of the tubular interconnecting component used in the heating boiler, where reference numbers represent:
- Figure 8 illustrates a view from an embodiment of the connection between the heat exchanger cap, and the tubular interconnecting component used in the heating boiler, where reference numbers represent:
- Figure 9 illustrates a view of the diverting boxes used in the heating boiler, where reference numbers represent:
- Figure 10 illustrates a view of the diverting boxes used in the heating boiler, where reference numbers represent:
- FIG 11 illustrates the gases route by action of the lower diverting boxes (41) and upper diverting boxes (51).
- Figure 12 illustrates a view of the diverting boxes used in the heating boiler, where reference numbers represent:
- Figure 13 illustrates a view of the diverting boxes used in the heating boiler, where reference numbers represent:
- Figure 14 illustrates a view from the cleaning module used in the heating boiler, where reference numbers represent:
- Figure 15 illustrates a view of the cleaning module used in the heating boiler, where reference numbers represent:
- Figure 16 illustrates a view from the brush used in the cleaning module of the heating boiler, where reference numbers represent:
- Figure 17 illustrates a view from the throttle type valve used in the heating boiler, where reference numbers represent :
- Figure 18 illustrates a lateral view from the throttle type valve (42) in the open and shut positions.
- Figure 19 illustrates a view from the combustion chamber used in the heating boiler, where reference numbers represent :
- the present invention refers to a boiler of the type used for feeding heating lines for water or other thermal fluid, and is characterized in that it comprises a burner (1) which has an inflation antechamber (10), a post-chamber (12), and a cleaning system; a combustion chamber (2); an heat exchanger (3), and a mechanical cleaning system (4) comprising a group of cleaning modules (60) that slides over the exchanger (3) .
- the burner (1) has the function of promoting the combustion of combustible elements, e.g. pellets, and creating a flow of hot gases, whose temperatures range from 900 to 1400°C.
- Said burner (1) comprises an inflation antechamber (10), to which is coupled a centrifugal fan (11) and a post-chamber (12), where the pellets are deposited and into which a flow of air from the centrifugal fan (11) is injected.
- the internal volumes of the inflation antechamber (10) and of the post-chamber (12) are connected by means of small circular orifices (15), through which passes the air flow, injected in the inflation antechamber (10) by the centrifugal fan (11).
- a feeding channel (13) directly connected to the post-chamber (12), allows for the- feeding of fuel flow, particularly pellets.
- An electrical resistance (14) installed in one of the orifices that connects the internal volumes of the inflation antechamber (10) and that of the post-chamber (12), allows for the beginning of pellets combustion by warming of injected air that is forced to contact with said electrical resistance (14). After the beginning of combustion, the electrical resistance (14) is turned off, maintaining it active indefinitely whilst the ratio between air flow and pellets remains inside an ' operation range.
- the feeding channel (13) possesses through holes (16) that allow for the passing of some of the air injected in the inflation chamber (10), in other words, there is a reduced flow of air that is injected into the post-chamber (12) from the feeding channel (13), thus being avoided that the phenomenon of back-burning occurs, in other words, that the flame flows through the pellets entrance channel in direction to the pellets silo.
- the burner (1) disposes also of a cleaning system comprising a scraper (17) whose lower surface is coincidental with the internal surface of the post-chamber (12), and an actuator (19) placed outside the inflation antechamber (10), which allows for the actuation of the scraper (17) by means of a shaft of the actuator system (18) .
- a cleaning system comprising a scraper (17) whose lower surface is coincidental with the internal surface of the post-chamber (12), and an actuator (19) placed outside the inflation antechamber (10), which allows for the actuation of the scraper (17) by means of a shaft of the actuator system (18) .
- the combustion chamber (2) that consists in a set of two hollow cylinders (21) and (22), whose free ends are connected together by two identical caps (20), and assembled in reverse.
- a redirecting component (23) is connected in order to redirect the gases from the burner (1) to the heat exchanger (3) . It is to point out that the redirecting component (23) does not possess heat dissipation. The water flow that is injected into the combustion chamber (2) is afterwards transferred to the heat exchanger (3) .
- the gases are transferred to an input of the heat exchanger (3), which comprises a modular set, being each module (31) composed by a central finned and hollow body (32) and two caps (33) coupled at opposed faces of said heat exchanger (3).
- This tubular interconnecting component (34) consists in a tube (35), with two external channels machined at opposed ends of the interconnecting component (34), for posterior location of O-rings (36), thus allowing for a sealed connection.
- modules that on their external faces, not contacting with gases, do not possess any fins, being thus smooth, and so avoiding the occurrence of an heat transfer to the environment that would result in some losses.
- lower diverter boxes (41) and upper diverter boxes (51) are placed, respectively under and over the modules (31), which have a simple parallelepiped geometry and comprise 5 sealed faces and one that has an opening through which the gas reaches and leaves the box, in a manner that allows also for the creation of a route for the runoff of gases, and for the maximization of the heat transfer to the water, whereas each box (41, 51) diverts the route of the gases for 180°, as illustrated at Figure 11. This behavior can be continuously seen at the last upper diverter box (51), placed mandatorily over the exchanger (3), to which an electrical extractor can be coupled.
- a mechanical cleaning system (4) comprises a vertically moving comb (60) that cleans the exchanger fins as it passes.
- the cleaning system (4) comprises a set of cleaning modules (60) that slides over the exchanger (3), and where each cleaning module (60) allows for the ' cleaning of a pass of gases but, notwithstanding, after the installation of the necessary modules, these can be serially acted and by a single actuator .
- the cleaning module (60) is constituted by a metallic structure (61) with an inverted U geometry, where each leg of the U possesses two axes at its most extreme points (62) and (63) where toothed sprockets (62) are coupled and synchronized through gear chains (65) .
- the upper shafts of both legs are synchronized using a common shaft (66), supported by a set of bearings (52) present at the upper diverter box (51). Between both gear chains (65) of each leg, there is coupled a brush (67), which moves itself in synchrony with the chains (65). The mechanism is acted by the common shaft (66) coupled to a motor (not shown), using a gear chain.
- the motor rotation in one direction makes the brush (67) go down and the rotation in the inverse sense make it go up.
- the brush (67) comprises a rigid central profile (68), elongated and metallic, with metallic fibers (69), which are braided in it all along its length and both sides of the central profile (68).
- the vertical movement of the brush (67) removes the ashes deposited upon the external surfaces of the heat exchanger modules (3). These are the main surfaces for the heat transfer between the gases and the water.
- the throttle type valve (42) is acted via toothed sprocket (44) coupled to the rotation axis and that possesses, a central spinning shaft (43) having at a central zone sealing fins (45) in a number sufficient to create, when not spinning, a sealed volume upstream of said throttle type valve (42) .
- the mass of ashes removed by the throttle type valve (42) falls down over the outside of the combustion chamber (2), eventually circumventing it, for what the cleaning system (4) presents a V shaped deflector (70), and a screw-worm (71), under the combustion chamber (2) .
- the V shaped deflector (70) allows funneling all the ashes expelled from the lower diverter boxes (41) to its base, where the screw- worm (71) is placed. Once acted, the screw-worm (71) transfers the ashes to outside the combustion chamber (2) .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Gas Burners (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/PT2014/000080 WO2016108709A1 (en) | 2014-12-29 | 2014-12-29 | Feeding boiler for heating water or other thermal fluid lines with modular heat exchanger and cleaning system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3240975A1 true EP3240975A1 (en) | 2017-11-08 |
EP3240975B1 EP3240975B1 (en) | 2018-12-12 |
Family
ID=52395163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14830421.5A Not-in-force EP3240975B1 (en) | 2014-12-29 | 2014-12-29 | Feeding boiler for heating water or other thermal fluid lines with modular heat exchanger and cleaning system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3240975B1 (en) |
WO (1) | WO2016108709A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115752080A (en) * | 2022-12-07 | 2023-03-07 | 无锡翔龙环球科技股份有限公司 | Self-cleaning mechanism of heat exchange tube on waste heat boiler |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109028045A (en) * | 2018-06-12 | 2018-12-18 | 中蓝长化工程科技有限公司 | The anti-high sodium coal combustion of one kind stains circulating fluidized bed boiler and releasing pollution discharge treatment method |
CN112902220A (en) * | 2020-12-22 | 2021-06-04 | 中国天辰工程有限公司 | Y-shaped pipe and water-cooled wall |
KR102457992B1 (en) * | 2022-05-12 | 2022-10-24 | (주) 런텍 | Heat-exchanger possible for removing scale of heat exchanging tube on operating |
CN114811949B (en) * | 2022-05-25 | 2023-05-16 | 江西中聚宏新材料科技有限公司 | High-performance energy-saving air heat pump device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2469253A (en) | 1946-04-15 | 1949-05-03 | Achey Norwood | Sectional boiler |
US2539669A (en) | 1946-05-04 | 1951-01-30 | Olin Ind Inc | Sectional heat exchanger |
JPS5777898A (en) * | 1980-11-01 | 1982-05-15 | Kawasaki Heavy Ind Ltd | Cleaning device for heat conducting surface of heat exchanger |
US4401155A (en) | 1981-02-13 | 1983-08-30 | Union Carbide Corporation | Heat exchanger with extruded flow channels |
BE888988A (en) * | 1981-05-27 | 1981-11-27 | Kempense Steenkolenmijnen Nv | HEATING BOILER FOR COAL COMBUSTION |
DE20203325U1 (en) * | 2002-03-01 | 2002-06-20 | HDG Bavaria GmbH Heizkessel & Anlagenbau, 84323 Massing | Boiler with cleaning arrangement |
US20080000620A1 (en) * | 2006-06-28 | 2008-01-03 | Chien-Chung Tao | Heat exchanger |
BG66233B1 (en) * | 2006-08-25 | 2012-07-31 | Северел ПЪРВАНОВ | Heating and hot water tank |
ITCS20070034A1 (en) * | 2007-07-12 | 2009-01-13 | Ungaro S R L | HEAT EXCHANGER FOR TERMINAL BOARD |
GB2483047B (en) * | 2010-06-22 | 2016-05-11 | Alley Enterprises Ltd | An enclosed granular fuel burning boiler |
-
2014
- 2014-12-29 EP EP14830421.5A patent/EP3240975B1/en not_active Not-in-force
- 2014-12-29 WO PCT/PT2014/000080 patent/WO2016108709A1/en active Application Filing
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115752080A (en) * | 2022-12-07 | 2023-03-07 | 无锡翔龙环球科技股份有限公司 | Self-cleaning mechanism of heat exchange tube on waste heat boiler |
CN115752080B (en) * | 2022-12-07 | 2023-09-05 | 无锡翔龙环球科技股份有限公司 | Self-cleaning mechanism of heat exchange tube on waste heat boiler |
Also Published As
Publication number | Publication date |
---|---|
WO2016108709A1 (en) | 2016-07-07 |
EP3240975B1 (en) | 2018-12-12 |
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