EP4209720A1 - A hybrid boiler - Google Patents
A hybrid boiler Download PDFInfo
- Publication number
- EP4209720A1 EP4209720A1 EP22460082.5A EP22460082A EP4209720A1 EP 4209720 A1 EP4209720 A1 EP 4209720A1 EP 22460082 A EP22460082 A EP 22460082A EP 4209720 A1 EP4209720 A1 EP 4209720A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- jacket
- pipe
- chamber
- water
- longitudinal partition
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000005192 partition Methods 0.000 claims abstract description 36
- 239000002826 coolant Substances 0.000 claims abstract description 17
- 239000003546 flue gas Substances 0.000 claims abstract description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 description 12
- 239000003507 refrigerant Substances 0.000 description 11
- 239000012530 fluid Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D12/00—Other central heating systems
- F24D12/02—Other central heating systems having more than one heat source
-
- 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
- F24H1/48—Water heaters for central heating incorporating heaters for domestic water
- F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
-
- 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
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- 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
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
-
- 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
- F24H9/001—Guiding means
- F24H9/0015—Guiding means in water channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
Definitions
- the invention concerns a hybrid boiler, applicable especially in central heating and/or domestic water installations.
- a heat pump boiler which comprises a compressor for compressing a refrigerant, an exterior heat exchanger that is configured to allow heat exchange between a flowing refrigerant and exterior air, an interior heat exchanger that is configured to allow heat exchange between a flowing refrigerant and heating water, a channel change valve that is configured to send the refrigerant compressed by the compressor to the exterior heat exchanger or the interior heat exchanger, a first boiler heat exchanger that is configured to heat heating water that has passed through the interior heat exchanger, using combustion heat, a second boiler heat exchanger that is configured to allow heat exchange between a flowing refrigerant and gas discharged from the first boiler heat exchanger, and a defrosting valve that is configured to send a flowing refrigerant to the interior heat exchanger or the second boiler heat exchanger.
- Heat pump and boiler can work separately or together.
- a hybrid heat pump boiler system which comprises a water tank unit, a boiler unit, and an indoor and outdoor unit that together form a heat pump.
- the outdoor unit has a compressor to compress a refrigerant, a 4-way valve to change a flow-path of the refrigerant discharged from the compressor, a first heat exchanger to allow refrigerant from the 4-way valve to pass through and exchange thermal energy with water from the water tank unit, a first expansion valve to expand refrigerant from the first heat exchanger during a water and space heating operation, and a fan coil unit to receive refrigerant from the first expansion valve.
- the boiler unit has a heat pipe connected with an exhaust gas recovery heat exchanger. The heat pipe may pass thermal energy captured from the boiler unit to the outdoor units fan coil unit when defrosting of the coil is required, for example, in winter, and has a second expansion valve which may be used with the indoor unit to cool an interior space.
- Known from patent document PL 234 215 B1 is a hybrid pellet boiler with an air source heat pump, composed of an air source heat pump, heat exchanger, flue gas exhaust conduit, biomass burning chamber with a pellet burner, hot water tank, biomass container, air intake and exhaust vents, and control module.
- the air source heat pump and pellet boiler are placed in a common casing.
- a dual purpose heat exchanger comprises a central heating fluid circuit and hot utility water circuit.
- the exchanger contains fired or heated by flow of water or steam main heat exchanger and coil enclosed by an external jacket equipped with an inlet stub pipe for fluid heating the utility water in the coil as well as an inlet stub pipe and outlet stub pipe for utility water, however, the flow chamber of fluid heating the utility water in the coil is connected with the flow chamber of heated fluid in the main exchanger.
- the coil is wound on the jacket of the main exchanger, and the flow chamber of fluid heating the utility water in the coil is connected through at least one overflow hole with the flow chamber of heated fluid in the main exchanger.
- cooling agent condenses following which the heat obtained as the result of condensation of hot vapours of the cooling agent is, in the form of water heat energy, transmitted for further heating or mixing with water heated by the condensing boiled.
- the purpose of this invention is to develop a structure of a hybrid boiler in which water is heated simultaneously using two heat sources, namely a heat pump and condensing boiler, where both water heating processes take place in a single device and can function in compatibility as a single facility heating system.
- the described invention solves the problem of increasing the efficiency of the share of renewable energy source compared to the known systems, in particular such in which a gas boiler is the sole source of heat, and obtaining the maximum possible efficiency by simultaneous heating of water using two sources of heat.
- the hybrid boiler is intended to supplement the energy which the heat pump is unable to generate, where the performance and power depend on external conditions (climate).
- a hybrid boiler containing a fired pipe heat exchanger encased in an internal jacket, a pipe coil encased in an external jacket which on the one side is closed with a lid incorporating a burner plate, and on the opposite side is closed with a condensate tray, water inlet and outlet stub pipes and flue gas exhaust stub pipe is characterised in that in between the external jacket and the internal jacket there is a longitudinal partition separating the internal space between the said jackets into two chambers which are connected to each other below the lid, and the chamber formed between the longitudinal partition and the internal jacket is connected to the chamber inside the internal jacket above the condensate tray, where placed in the chamber between the external jacket and the longitudinal partition is a pipe coil fitted with a cooling agent inlet and outlet stub pipes, and the water inlet stub pipe is connected to the said chamber formed between the external jacket and the longitudinal partition, whereas the water outlet stub pipe is connected to the chamber formed within the internal jacket.
- the boiler is fitted with an additional water in
- both water heating processes take place in a single device and are able to function in compatibility as a single facility heating system.
- the solution according to the described invention enables increasing boiler efficiency and minimising heat losses.
- the hybrid boiler incorporates a fired pipe heat exchanger encased in an internal jacket 9, a coil pipe 7 encased in an external jacket 1, the latter closed with a lid 12 with a burner plate on the one side, and with a tray 4 for the condensate on the other side, and further incorporates a water inlet stub pipe 3, water outlet stub pipe 11, and flue gas exhaust stub pipe 5.
- the fired heat exchanger incorporates a burning chamber 13 with a sieve bottom 14, and a pack of flue gas pipes 6 which on the one side are fitted in the sieve bottom 14 of the burning chamber 13, and on the other side in the sieve bottom 15 positioned above the tray 4 for the condensate.
- the flue gas pipes 6 are fitted in the transverse sieve partitions 16 located between the said sieve bottoms 14, 15, along the length of the flue gas pipes.
- the internal jacket 9 encases the pack of flue gas pipes 6 and the burning chamber 13. Inside the internal jacket 9 there is a water chamber, placed inside of which are the said flue gas pipes 6 and the burning chamber 13.
- the chamber formed between the longitudinal partition 8 and the internal jacket 9 is connected to the chamber within the internal jacket 9 above the tray 4 for the condensate above the sieve bottom 15, for example by way of openings 18 made in the internal jacket 9 or by way of a slot (slots) between the internal jacket 9 and the sieve bottom 15.
- a coil pipe 7 spirally coiled along the longitudinal partition 8 and the external jacket 1, fitted with an inlet stub pipe 10 and outlet stub pipe 2 for the cooling agent of the heat pump.
- the water inlet stub pipe 3 is connected to the said chamber formed between the external jacket 1 and the longitudinal partition 8, while the water outlet stub pipe 11 is connected to the chamber formed within the internal jacket 9 and is placed in the lid 12.
- a water inlet stub pipe 19 to supply water into the chamber within the internal jacket 9, and a water outlet stub pipe 20 to discharge water from the chamber between the external jacket 1 and the longitudinal partition 8, where the said stub pipes 19, 20 in this embodiment are closed, or the hybrid boiler may be devoid of them all together.
- the circulation of water in the hybrid boiler is as follows. Water flows through the inlet stub pipe 3 placed in the bottom part of the boiler into the chamber between the external jacket 1 and the longitudinal partition 8 and pressure forces its transport up towards the lid 12, where water flows around the hot spiral coil pipe which contains hot cooling agent supplied through the inlet stub pipe 10 and discharged through the outlet stub pipe 2, and where the cooling agent flows in countercurrent with respect to the water flowing around the coil pipe.
- the water flows through the openings 17 in the longitudinal partition 8 into the chamber between the longitudinal partition 8 and the internal jacket 9 and flows down, flowing against the hot internal jacket 9 and then through the openings 18 made in the bottom part of the internal jacket 9 into the chamber within the internal jacket 9, where inside the chamber there are flue gas pipes 6 and the burning chamber 13.
- the water flows up towards the lid 12, in countercurrent with respect to the direction of flow of the flue gases, flowing around the hot flue gas pipes 6 and the burning chamber 13, whereupon it leaves the hybrid boiler through the outlet stub pipe 11.
- the hybrid boiler features the water inlet stub pipe 19 which supplies water to the chamber within the internal jacket 9 and/or the water outlet stub pipe 20 which discharges water from the chamber between the external jacket 1 and the longitudinal partition 8, then the stub pipes in the above embodiment are closed.
- the hybrid boiler described in embodiment one is fitted with a water inlet stub pipe placed above the sieve wall 15, connected to the chamber within the internal jacket 9, and with a water outlet stub pipe 20 placed below the openings 17 in the longitudinal partition 8, connected to the chamber formed between the external jacket 1 and the partition 8.
- the coil pipe 7 contains hot cooling agent supplied through the inlet stub pipe 10 and discharged through the outlet stub pipe 2, where the agent flows in countercurrent with respect to the direction the water flowing around the coil pipe, as shown in Fig. 2 .
- the agent flows in countercurrent with respect to the direction the water flowing around the coil pipe, as shown in Fig. 2 .
- the coil pipe serves as a condenser in the heat pump circulation cycle. Once the heat is transmitted to water, the condensed cooling agent leaves the hybrid boiler and is transported for evaporation and reintroduction to the compressor.
- the coil pipe may play the role of a heat pump evaporator.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
Description
- The invention concerns a hybrid boiler, applicable especially in central heating and/or domestic water installations.
- Known from patent document
EP 3 643 994 A1 is a heat pump boiler which comprises a compressor for compressing a refrigerant, an exterior heat exchanger that is configured to allow heat exchange between a flowing refrigerant and exterior air, an interior heat exchanger that is configured to allow heat exchange between a flowing refrigerant and heating water, a channel change valve that is configured to send the refrigerant compressed by the compressor to the exterior heat exchanger or the interior heat exchanger, a first boiler heat exchanger that is configured to heat heating water that has passed through the interior heat exchanger, using combustion heat, a second boiler heat exchanger that is configured to allow heat exchange between a flowing refrigerant and gas discharged from the first boiler heat exchanger, and a defrosting valve that is configured to send a flowing refrigerant to the interior heat exchanger or the second boiler heat exchanger. Heat pump and boiler can work separately or together. - Known from
patent document GB 2503781 A1 - Known from patent document
PL 234 215 B1 - Known from patent document
WO 2013/141728 A2 is a dual purpose heat exchanger comprises a central heating fluid circuit and hot utility water circuit. The exchanger contains fired or heated by flow of water or steam main heat exchanger and coil enclosed by an external jacket equipped with an inlet stub pipe for fluid heating the utility water in the coil as well as an inlet stub pipe and outlet stub pipe for utility water, however, the flow chamber of fluid heating the utility water in the coil is connected with the flow chamber of heated fluid in the main exchanger. The coil is wound on the jacket of the main exchanger, and the flow chamber of fluid heating the utility water in the coil is connected through at least one overflow hole with the flow chamber of heated fluid in the main exchanger. - In known solutions, used in hybrid devices are separate heat exchangers in which the cooling agent condenses, following which the heat obtained as the result of condensation of hot vapours of the cooling agent is, in the form of water heat energy, transmitted for further heating or mixing with water heated by the condensing boiled.
- The purpose of this invention is to develop a structure of a hybrid boiler in which water is heated simultaneously using two heat sources, namely a heat pump and condensing boiler, where both water heating processes take place in a single device and can function in compatibility as a single facility heating system.
- The described invention solves the problem of increasing the efficiency of the share of renewable energy source compared to the known systems, in particular such in which a gas boiler is the sole source of heat, and obtaining the maximum possible efficiency by simultaneous heating of water using two sources of heat. The hybrid boiler is intended to supplement the energy which the heat pump is unable to generate, where the performance and power depend on external conditions (climate).
- According to this invention, a hybrid boiler containing a fired pipe heat exchanger encased in an internal jacket, a pipe coil encased in an external jacket which on the one side is closed with a lid incorporating a burner plate, and on the opposite side is closed with a condensate tray, water inlet and outlet stub pipes and flue gas exhaust stub pipe is characterised in that in between the external jacket and the internal jacket there is a longitudinal partition separating the internal space between the said jackets into two chambers which are connected to each other below the lid, and the chamber formed between the longitudinal partition and the internal jacket is connected to the chamber inside the internal jacket above the condensate tray, where placed in the chamber between the external jacket and the longitudinal partition is a pipe coil fitted with a cooling agent inlet and outlet stub pipes, and the water inlet stub pipe is connected to the said chamber formed between the external jacket and the longitudinal partition, whereas the water outlet stub pipe is connected to the chamber formed within the internal jacket.
Preferably, the boiler is fitted with an additional water inlet stub pipe connected to the chamber within the internal jacket and/or preferably is fitted with an additional water outlet stub pipe connected to the chamber formed between the external jacket and the longitudinal partition. - Thanks to the placement of the coil pipe for the cooling agent within the hybrid boiler, both water heating processes take place in a single device and are able to function in compatibility as a single facility heating system. The solution according to the described invention enables increasing boiler efficiency and minimising heat losses.
- The invention in its embodiments is shown on a drawings, where:
-
Fig. 1 presents the hybrid boiler in axial section, in a perspective view, with water circulation and cooling agent circulation marked thereon; -
Fig. 2 shows the hybrid boiler in axial section, in a perspective view, with water circulation in the chamber between the external jacket and the longitudinal partition, and cooling agent circulation marked thereon; -
Fig. 3 presents the hybrid boiler in axial section, in a perspective view, with water circulation in the chamber within the internal jacket marked thereon. - According to the first embodiment of the invention, as in
Fig. 1 , the hybrid boiler incorporates a fired pipe heat exchanger encased in aninternal jacket 9, acoil pipe 7 encased in anexternal jacket 1, the latter closed with alid 12 with a burner plate on the one side, and with atray 4 for the condensate on the other side, and further incorporates a waterinlet stub pipe 3, water outlet stub pipe 11, and flue gasexhaust stub pipe 5. The fired heat exchanger incorporates aburning chamber 13 with a sieve bottom 14, and a pack offlue gas pipes 6 which on the one side are fitted in the sieve bottom 14 of theburning chamber 13, and on the other side in thesieve bottom 15 positioned above thetray 4 for the condensate. To intensify heat exchange, theflue gas pipes 6 are fitted in thetransverse sieve partitions 16 located between the saidsieve bottoms 14, 15, along the length of the flue gas pipes. Theinternal jacket 9 encases the pack offlue gas pipes 6 and theburning chamber 13. Inside theinternal jacket 9 there is a water chamber, placed inside of which are the saidflue gas pipes 6 and theburning chamber 13. Between theexternal jacket 1 and theinternal jacket 9 there is alongitudinal partition 8 which divides the space between the saidjackets lid 12, for example by way of openings 17 made in thelongitudinal partition 8 or by way of a slot (slots) positioned between thelid 12 and thelongitudinal partition 8. On the other hand, the chamber formed between thelongitudinal partition 8 and theinternal jacket 9 is connected to the chamber within theinternal jacket 9 above thetray 4 for the condensate above thesieve bottom 15, for example by way ofopenings 18 made in theinternal jacket 9 or by way of a slot (slots) between theinternal jacket 9 and thesieve bottom 15. Placed in the chamber between theexternal jacket 1 and thelongitudinal partition 8 is acoil pipe 7 spirally coiled along thelongitudinal partition 8 and theexternal jacket 1, fitted with aninlet stub pipe 10 andoutlet stub pipe 2 for the cooling agent of the heat pump. The waterinlet stub pipe 3 is connected to the said chamber formed between theexternal jacket 1 and thelongitudinal partition 8, while the water outlet stub pipe 11 is connected to the chamber formed within theinternal jacket 9 and is placed in thelid 12.
Moreover, shown onFig. 1 is a waterinlet stub pipe 19 to supply water into the chamber within theinternal jacket 9, and a wateroutlet stub pipe 20 to discharge water from the chamber between theexternal jacket 1 and thelongitudinal partition 8, where the saidstub pipes - The circulation of water in the hybrid boiler is as follows. Water flows through the
inlet stub pipe 3 placed in the bottom part of the boiler into the chamber between theexternal jacket 1 and thelongitudinal partition 8 and pressure forces its transport up towards thelid 12, where water flows around the hot spiral coil pipe which contains hot cooling agent supplied through theinlet stub pipe 10 and discharged through theoutlet stub pipe 2, and where the cooling agent flows in countercurrent with respect to the water flowing around the coil pipe. Then, once the water reaches thelid 12, it flows through the openings 17 in thelongitudinal partition 8 into the chamber between thelongitudinal partition 8 and theinternal jacket 9 and flows down, flowing against the hotinternal jacket 9 and then through theopenings 18 made in the bottom part of theinternal jacket 9 into the chamber within theinternal jacket 9, where inside the chamber there areflue gas pipes 6 and theburning chamber 13. The water flows up towards thelid 12, in countercurrent with respect to the direction of flow of the flue gases, flowing around the hotflue gas pipes 6 and theburning chamber 13, whereupon it leaves the hybrid boiler through the outlet stub pipe 11.
If the hybrid boiler features the waterinlet stub pipe 19 which supplies water to the chamber within theinternal jacket 9 and/or the wateroutlet stub pipe 20 which discharges water from the chamber between theexternal jacket 1 and thelongitudinal partition 8, then the stub pipes in the above embodiment are closed. - According to the second invention embodiment, the hybrid boiler described in embodiment one is fitted with a water inlet stub pipe placed above the
sieve wall 15, connected to the chamber within theinternal jacket 9, and with a wateroutlet stub pipe 20 placed below the openings 17 in thelongitudinal partition 8, connected to the chamber formed between theexternal jacket 1 and thepartition 8. - In this embodiment variant, there are two water circulation routes, as follows. Water flows through the
inlet stub pipe 19 placed above thesieve bottom 15 into the chamber within theinternal jacket 9, and pressure forces its transport up towards thelid 12, where water flows around theflue gas pipes 6 and theburning chamber 13 and then leaves the hybrid boiler through the outlet stub pipe 11, as shown inFig. 3 . At the same time, water flows through theinlet stub pipe 3 into the chamber between theexternal jacket 1 and thelongitudinal partition 8, where pressure forces its flow around thehot coil pipe 7, whereupon water leaves the hybrid boiler through theoutlet stub pipe 20. Thecoil pipe 7 contains hot cooling agent supplied through theinlet stub pipe 10 and discharged through theoutlet stub pipe 2, where the agent flows in countercurrent with respect to the direction the water flowing around the coil pipe, as shown inFig. 2 .
Depending on the needs, it is also possible to achieve only one of the water circulation routes described above. - In all embodiments the coil pipe serves as a condenser in the heat pump circulation cycle. Once the heat is transmitted to water, the condensed cooling agent leaves the hybrid boiler and is transported for evaporation and reintroduction to the compressor.
- In the cooling function, the coil pipe may play the role of a heat pump evaporator.
-
- 1 - external jacket
- 2 - outlet stub pipe of the cooling agent
- 3 - water inlet stub pipe supplying water to the chamber between the external jacket and the longitudinal partition
- 4 - condensate tray
- 5 - flue gas exhaust stub pipe
- 6 - flue gas pipes
- 7 - coil pipe
- 8 - longitudinal partition
- 9 - internal jacket
- 10 - cooling agent inlet stub pipe
- 11 - water outlet stub pipe discharging water from the chamber within the internal jacket
- 12 - lid with a burner plate
- 13 - burning chamber
- 14 - sieve bottom of the burning chamber
- 15 - sieve bottom above the condensate tray
- 16 - sieve partitions
- 17 - openings in the longitudinal partition
- 18 - openings in the external jacket
- 19 - water inlet stub pipe supplying water to the chamber within the internal jacket
- 20 - water outlet stub pipe discharging water from the chamber between the external jacket and the longitudinal partition
Claims (3)
- A hybrid boiler containing a fired pipe heat exchanger encased in an internal jacket, a pipe coil encased in an external jacket which on the one side is closed with a lid incorporating a burner plate, and on the opposite side is closed with a condensate tray, water inlet and outlet stub pipes and flue gas exhaust stub pipe characterised in that between the external jacket (1) and the internal jacket (9) there is a longitudinal partition (8) separating the internal space between the said jackets (1, 9) into two chambers which are connected to each other below the lid (12), and the chamber formed between the longitudinal partition (8) and the internal jacket (9) is connected to the chamber inside the internal jacket (9) above the condensate tray, where placed in the chamber between the external jacket (1) and the longitudinal partition (8) is a pipe coil (7) fitted with a cooling agent inlet stub pipe (10) and cooling agent outlet stub pipe (2), and the water inlet stub pipe (3) is connected to the said chamber formed between the external jacket (1) and the longitudinal partition (8), whereas the water outlet stub pipe (11) is connected to the chamber formed within the internal jacket (9).
- The boiler according to Claim 1, characterized in that it is fitted with a water inlet stub pipe (19) connected to the chamber within the internal jacket.
- The boiler according to Claims 1 or 2, characterized in that it is fitted with a water outlet stub pipe (20) connected to the chamber formed between the external jacket (1) and the longitudinal partition (8).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL440087A PL244327B1 (en) | 2022-01-05 | 2022-01-05 | Hybrid boiler |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4209720A1 true EP4209720A1 (en) | 2023-07-12 |
Family
ID=85076264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22460082.5A Pending EP4209720A1 (en) | 2022-01-05 | 2022-12-29 | A hybrid boiler |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4209720A1 (en) |
PL (1) | PL244327B1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0260653A2 (en) * | 1986-09-15 | 1988-03-23 | ITALCLIMAX S.r.l. | High-efficiency heating unit for producing hot water |
DE19819411A1 (en) * | 1998-04-30 | 1999-11-11 | Ha Ski Haustechnik Und Innovat | Heating machine with integrated gross calorific value utilization and waste gas washing device including ecomodule |
WO2013141728A2 (en) | 2012-03-23 | 2013-09-26 | Aic Spółka Akcyjna | Dual purpose heat exchanger |
KR20130130263A (en) * | 2012-05-21 | 2013-12-02 | (주)귀뚜라미 | Hybrid system combined boiler and heat pump |
GB2503781A (en) | 2012-05-30 | 2014-01-08 | Clk Corp | Hybrid heat pump boiler system |
PL234215B1 (en) | 2017-08-09 | 2020-01-31 | Wojciech Butrym | Hybrid pellet-fired boiler with the air source heat pump |
EP3643994A1 (en) | 2018-10-22 | 2020-04-29 | LG Electronics Inc. | Heat pump boiler |
-
2022
- 2022-01-05 PL PL440087A patent/PL244327B1/en unknown
- 2022-12-29 EP EP22460082.5A patent/EP4209720A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0260653A2 (en) * | 1986-09-15 | 1988-03-23 | ITALCLIMAX S.r.l. | High-efficiency heating unit for producing hot water |
DE19819411A1 (en) * | 1998-04-30 | 1999-11-11 | Ha Ski Haustechnik Und Innovat | Heating machine with integrated gross calorific value utilization and waste gas washing device including ecomodule |
WO2013141728A2 (en) | 2012-03-23 | 2013-09-26 | Aic Spółka Akcyjna | Dual purpose heat exchanger |
KR20130130263A (en) * | 2012-05-21 | 2013-12-02 | (주)귀뚜라미 | Hybrid system combined boiler and heat pump |
GB2503781A (en) | 2012-05-30 | 2014-01-08 | Clk Corp | Hybrid heat pump boiler system |
PL234215B1 (en) | 2017-08-09 | 2020-01-31 | Wojciech Butrym | Hybrid pellet-fired boiler with the air source heat pump |
EP3643994A1 (en) | 2018-10-22 | 2020-04-29 | LG Electronics Inc. | Heat pump boiler |
Also Published As
Publication number | Publication date |
---|---|
PL244327B1 (en) | 2024-01-08 |
PL440087A1 (en) | 2023-07-10 |
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