GB2180058A - Boiler - Google Patents
Boiler Download PDFInfo
- Publication number
- GB2180058A GB2180058A GB08620454A GB8620454A GB2180058A GB 2180058 A GB2180058 A GB 2180058A GB 08620454 A GB08620454 A GB 08620454A GB 8620454 A GB8620454 A GB 8620454A GB 2180058 A GB2180058 A GB 2180058A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heating device
- burner
- heat exchanger
- heat pump
- combustion
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 48
- 239000000567 combustion gas Substances 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 27
- 238000010521 absorption reaction Methods 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 22
- 239000000203 mixture Substances 0.000 description 13
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- RSIWALKZYXPAGW-NSHDSACASA-N 6-(3-fluorophenyl)-3-methyl-7-[(1s)-1-(7h-purin-6-ylamino)ethyl]-[1,3]thiazolo[3,2-a]pyrimidin-5-one Chemical compound C=1([C@@H](NC=2C=3N=CNC=3N=CN=2)C)N=C2SC=C(C)N2C(=O)C=1C1=CC=CC(F)=C1 RSIWALKZYXPAGW-NSHDSACASA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
-
- 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
-
- 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
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/003—Baffles or deflectors for air or combustion products; Flame shields in flue gas ducts
- F23M9/006—Backflow diverters
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- 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)
- Air Supply (AREA)
Abstract
A heating boiler (3) has an intake chamber (5) with air and gas inlet means (6 and 7), and a burner (8), a combustion space (40), a heat exchanger (9), and an outlet chamber (10) arranged in succession below the intake chamber. An ejector nozzle (11) forms the outlet from the chamber (10) to discharge with sufficient speed the combustion gases which contain condensate and so to induce a flow of fresh air introduced by a draught interrupter (12) through orifices (14). An absorption heat pump (80) is connected with the heat exchanger (9). <IMAGE>
Description
SPECIFICATION
Heating device
The invention relates to a heating device, provided with a heating boiler, comprising an intake chamber having air inlet means and gas inlet means, beneath which is arranged at least one burner, beneath which in turn is arranged at least one combustion space, beneath which in turn is arranged at least one heat exchanger and beneath this in turn at least one outlet for combustion gases,the heating device being provided with at least one ventilator.
Such a heating device is known from the Dutch patent application 80.00460. In such a heating device, which is economical in use, the combustion gases are notverywarm, so that theflue draught is insufficient in various comditions to be able to apply a draught interrupter which introduces fresh air into the exhaust flow between the burner and the discharge pipe. The combustion gases of comparatively lowtemperature contain so much moisture that the moisture even condenses. As a result the wall of the flue becomes damp and can be adversely affected, so that special material has to be selected fortheflue such as stainless steel which is not affected bythe aggressive moisture ofthe combustion gases.
The invention has for its purpose to improve the uptake of combustion gases.
To this end, in accordance with the invention, there is at the combustion gas outlet a draught interrupter present which is provided with an ejector. The kinetic energy from the combustion gases is hereby used to transportthemthroughtheflue. So much oftheair flowing into the draught interrupter is thereby also pushed into the flue that the mixture of combustion gases and air has a dew-point lying underthe actual temperature of the mixture. Further, the temperature ofthe mixture becomes so lowthat even plastic can be used as flue material. Aluminium tubes can also be considered for flue piping.
In a preferred embodiment according to the invention the heating device is provided with a heat pump with which the combustion gases can be cooled to any desired temperature. Discharge of the combustion gases via the draught interrupter hereby remains possible.
An absorption heat pump is preferably employed, whereby a compressorthathasto be driven separately is not necessary.
The invention will be elucidated in the description following hereafter with reference to a drawing.
In the drawing:
Figure 1 shows a side view, partly in section, of a heating device according to the invention;
Figure2shows a variant of detail II from Figure 1; and Figure3detail Ill from Figure 1 on a large scale.
Figure4is a preferred embodimentofthe heating device according to Figure 1; and Figure5shows a diagram ofthe operation ofthe heating device from Figure 4.
The heating device 1 comprises an insulating casing 2, in which are accommodated a heating boiler3 and a ventilator4. Heating boiler3 comprises an intake chamber5with a pipe form air inlet 6 and a gas inlet 7. Beneath this is arranged a burner8 ofthesur- face burner type and beneath this in turn is located a combustion space 40.Beneath this is located a heat exchanger9, underneath which is an outlet chamber 10 having an outlet 11 which emerges into a draught interrupter 12, onto which a combustion gas discharge line 13 can be connected.The draught interrupter 12 has entrances 14foroutside air and a con densation discharge l5intheform ofasyphon.The combusion gas outlet 11 emerges into a mouth piece 44 contracting upwardsinthedirection offlow, which acts as ejector and makes the combustion gases flow with a considerable amount of kinetic en ergy into the flue uptake 46 of the draught interrupter 12 as according to arrows 45. Outside air is thereby drawn in as according to arrows 43 and sucked into the flue uptake.For a good action the ejector must contract relatively sharply, for example a reduction (d1 - d2) of the passage thereof amounting to 60% taken over a length 1,which is approximately equal to the passage d1 or2.
The resulting mixture has a lowtemperature of 60 to 70", so that the flue can be manufactured from plastic pipe, for example PVC. Any material which still retains sufficient of its original properties of strength at 60 to 70" and is moreover corrosion re sistant, for example aluminium, can be used. The further advantage is achieved that the dew-point of the mixture ofindrawn air and combustion gases lies underthe temperature of thins mixture, so that no inconvenient problem of condensate occurs. As a consequence it is still possible to connect the heating device 1 to existing gas discharge ducts not intended for high yield boilers.The kinetic energy of the mix to rue is used to transport the mixture if necessary over a considerable height outwards through the flue. In very long flues it can be necessary or useful to employ an extra ventilator or an extra strong ventilator 4.
During operation of the burner8the air resistance in the heating boiler 3 is many times greater than the natural draught in the combustion gas discharge pipe 13, so that the quantity ofairflowing into heating boiler3 does not depend on combustion gas discharge pipe 13 but is determined only byventilator4, thus always providing a determined output of air according to a determined Q-h curve when it is operation. The electrical voltage applied to the ventilator 4 of the example 220 volts leads to a determined speed of revolution of an electric motor 1 6which drives ventilator4 and the blade form of the ventilator blades 17 displaces a thereby determined output of air. The arrangement of the ventilator rotor 18 relative to the air inlet 6 is of importance here. Preferred is a mechanically pre-determined arrangement.
The combustion gas discharge pipe 13 can have a first, conically contracting piece of flue pi pi ng 50.
Thanks two use of the invention a quite narrow flue tube can be employed.
The air intakeopenings 14arearrangedatthe same level as or lowerthanthe combustion gasdischarge 46. The design of the draught interrupter 12 and the relative arrangement ofthe leveis of the combustion gas outlet 29 of boiler3 and the air intake openings 14 and the upper part of mouth piece 44 of draught interrupter 12 are chosen such that in the op- erating state when the boiler is hot, but the burner is not burning, no cold air is sucked through the boiler 3. Cooling of boiler3 is in this way avoided, which has a highly favourable influence on the boileryield.
Asaccordingto Figure 2the distance ofthe rotor 18 relative to the air inlet6 can be adjusted by making an inletmouth 19adjustablerelativetoairinlet6with screw means 20, whereby a sealing ring 21 is present between inletmouth 19andairinlet6.
Present on air inlet 6 is a pressure difference switch 23, which is connected to a control member 22 which opens the gas valve 24when the recorded pressure in the the intake chamber 5 is sufficient and other re- quired conditions have been fulfilled. Thisvalve24is fitted on the gas inlet7 behind a reducing valve 42 which,when the main shut-offvalve 25 is open, reduces gas mains pressure from 22-28 millibarsto a determined constant pressu re of for exam ple 15 mil- libars.
Adetermined air output isthus always mixed with a determined gas output, in orderto bring aboutfor burner 8 the ideal stoichiometric proportions when the quantity of mixture is optimal.
The gas inlet nozzle 28 of gas inlet7 is accurately manufactured inform to obtain a determined gas output when a determined pressure prevails in gas inlet7.
The burner 8 consists preferably of a ceramic plate 30 having vertical channels 31 with a diameter of for example 0.7 mm and for example 100 holes per square cm. After ignition of the gas/air mixture a socalled flamefootforms in the vertical channels 31 (Figure 3) whereby the temperature becomes so high that a strong infrared radiation effect thereby results.
As a resultthere occurs a combined convection and radiant heattransferto the heat exchanger9, which increases the yield. Dimensions of the ceramic plate areforexample300 x400 mm. Thusarisesapure combustion gas without orvirtuallywithout excess of air. Agauze grid can if required be arranged under plate 30 inter alia to raise the burner capacity.
In addition to the above mentioned infrared burner the heating device according to the invention can as a matter of course also be fired buy a black burner, wherebytheflamefront is located outside the ceramis plate because ofthe low combustion speed relative to the speed offlow and the combustion gases therefore have a higher temperature and whereby the heat exchanger9 mustthereforebesufficiently protected against these high temperatures.
To lightthe burner8 a circulation pump 35 is first started which pumps water through the heat exchanger9. The heat exchanger 9 consists of a number of pipes 36 which are provided with ribs 37. A control device 38 starts first the pump 35 and, with a delay of several seconds, the ventilator4. By means of the pressure switch 23, which records the pressure difference between the pressure in the air inlet 6 and the pressure in the combustion chamber 40, an electrical ignition 39 is set into operation several seconds after it has been established that there is sufficient pressure difference. The delay time of several seconds is chosen to ensure that there is no flammable gas-air mixture in the intake chamber 5 and combustion chamber 40. Several seconds later again the valve 24 is opened.After for examplefive seconds there must then be a flame, which is ascertained with a flame detector41. Ifthere is then no flame the valve 24 is again closed. The dimensions of the burner8 relative to the heat exchanger 9 are such that the combustion gases cool to below the condensation point in order to achieve a high yield. In the heating device 1 according to the invention the condensate does not fall onto the burner8.
In a preferred embodiment of the heating device according to the invention (Figures 4,5) the heat content is transferred from the combustion gases up to any desired level to the water ofthefirst heat exchan- get9 using a heat pump 80.
Preferably an absorption heat pump is used, as this does not necessitate the use of a separate compressor. This absorption pump informed by a second heatexchanger51 positioned upstream inthecombustion gas flow (arrows F, Figure 5) relative to the first heat exchanger 9 and a third heat exchanger 53 positioned downstream ofthiscombustion gasflow.
An absorption heat pump of the type described below is per se known, for example from refrigeration engineering, and thefollowing description is therefore kept short. In Figures 4,5 the parts identical to those from the Figures 1-3 are indicated with the same reference numbers and are not discussed further.
Via a conduit 54 that is thin relative to the conduits to heat exchanger 9 the second heat exchanger 51 is connected to the pump 35. Via a conduit 55, a safety valve 56 and a conduit 57 the second heat exchanger 51 is connected to a boiler vessel 60 formed in two parts 58 and 59, from which the heated water or steam from heat exchanger 51 connects via conduits 61 and to the other side of pump 35.
In the boiler vessel is a mixture of ammonia and water whereby after heating via heat exchanger 51 NH3 vapour is guided via conduit 63 into a condensor 64. In condensor 64 the waterflowing to heat exchanger9 is heated by the NH3 vapour. The condensed
NH3 reaches the third heat exchanger 53 via conduit 65 and an evaporating unit/three way connection 66.
Via conduit 67 H2 gas coming from an absorption tank 68 is mixed with NH3 gas at three way connection 66, the H2 leaving absorption tank 68 easily because of its light weight and serving as propellantfor the NH3 gas. In heat exchanger 53 the NH3 gas absorbs heat from the combustion gases, which here still have a temperature of four example 70"C, but which after passing heat exchanger 53 only have a temperature offor example 1 5"C. Via conduit 69the NH3-H2 mixture reaches absorption tank 68, which tank is fed from the boiler vessel 60 via conduit 70 with water that is provided with a relatively low NH3 percentage, and from which tankwaterwith a relatively high NH3 percentage is carried back via a con duit71 to boiler vessel 60.
Heat is released in the absorption tank 68, whereby the H2 gas in conduit 67 is relatively hot. Preferably, a heat exchanger (not shown) is located between conduit 67 and conduit 69. Preferably, a heat exchanger (notshown) is likewise located between conduit 70 and conduit 71.
In orderto prevent the temperature of the combus- tion gases falling for example below freezing point after passing heat exchanger 53, a temperature feeler 72 is located behind heat exchanger 53, which, as is indicated schematically by 73, is linked with a control member 74 for the safety valve 56. lfthetemperature at the temperature feeler 62 falls below a pre-set value, for example 5"C, control member 74 actuates safety valve 56, which in turn connects conduit55 withconduit61,wherebythetemperatureatthetem- perature feeler will rise, as thereafter the combustion gasflowisno longercooled. Inordertooptimizethe cooling process control member 74 can of course be made so as to be regulating.
If water from a heating system associated with heat exchanger 9 flowing via conduit 75 to the pump 35 has a relatively lowtemperature, for example 25"C, that is, the heating system is taking much heat from heat exchanger 9, the burner8will operateal- most continually, the combustion gases will therefore have a high mean temperature and as a consequence of this the absorption heat pump operating with the aid of heat exchanger 51 will transfer a relatively large amountof heat to conduit 75 in the con densor 64, whereby a loss of yield occurring in the case described here with heating devices not having a heat pump is prevented.
In the heating device with heat pump according to the invention optimum use is made ofthetemperature differences in the combustion gases, which, according to the laws of thermodynamics, can produce a virtually maximum yield of 100%, inclusive of the heat content of the watervapour present in the combustion gases. With a correct dimensioning of the water pump an improvement in yield of 5% relat ive to the already existing high yield boilers is in any case possible, resulting in a boiler with a yield of 98 to 99%.
Described above is a preferred embodiment of a heating device on the basis of an absorption heat pump operating with NH3, but it will be apparent that the current invention is not restricted to NH3, but that above described heat pump can operate just as well with Freon or saline solutions; even a heat pump operating with an electrically driven compressor can of course be considered.
Claims (20)
1. Heating device (1) provided with a heating boiler (3), comprising an intake chamber (5) having air inlet means (6) and gas inlet means (7), beneath which is arranged at least one burner (8), beneath which in turn is arranged at least one combustion space (40), beneath which in turn is arranged at least one heat exchanger (9) and beneath this in turn at least one outlet (11) for combustion gases, said heating device (1) being provided with at least one ven tilator (4), characterized in that at said combustion gas outlet (11) is present a draught interrupter (12) which is provided with an ejector.
2. Heating device (1)as claimed in claim 1,char- acterized in that a mouth piece (44) of the ejector is provided with a convergence (d1 - d2) which converges sharply relative to the length (1) of said mouth piece (44) in the direction of the combustion gas flow.
3. Heating device (1) as claimed in claim 1 or 2, characterized in that the boiler gas outlet (11) takes the form of a spray nozzle directed towards the flue uptake (46) ofthe draught interrupter (12).
4. Heating device (1) as claimed in claim 3, characterized in thatthe spray nozzle converges in the flow direction.
5. Heating device (1) as claimed in claim 4, characterized in that the draught interrupter (12) is provided with a condensation discharge (15).
6. Heating device (1) as claimed inanyofthefore- going claims, characterized in that the draught interrupter (12) is manufactured from plastic.
7. Heating device (1) as claimed in anyofthefore- going claims, characterized in that the flue comprises a high temperature plastic pipe, for example of PVC.
8. Heating device (1) as claimed in any of theforegoing claims, characterized in that the ventilator (4) has a determined air output pertime unit.
9. Heating device (1) as claimed in any ofthefore- going claims, characterized in thatthe gas supply (7) is provided with gas output control means (7,28,42) having a set fixed gas output.
10. Heating device (1) as claimed in anyoftheforegoing claims, characterised in that the position of theventilator (4) relative to an air inlet (6) can beadjusted.
11. Heatingdevice(l) asclaimed inanyofthefor- egoing claims, characterized in that the burner (8) is a surface burner.
12. Heating device (1) as claimed in claim 11, characterised in that the surface burner (8) is an infrared burner.
13. Heating device (1) as claimed in claim 11, characterized in that the surface burner (8) is a black burner.
14. Heating device (1) as claimed in anyoftheforegoing claims, characterized by a heat pump (80) coupled with heat from the combustion gases.
15. Heating device (1) as claimed in claim 14, characterized in that the heat pump is an absorption heat pump (80) whereby a second heat exchanger (51) of said absorption heat pump coupled with a boilervessel (60) is arranged upstream inthecombustion gas flow (F) relative to the first heat exchanger (9) and whereby a third heat exchanger connected to an absorption tank (68) is arranged downstream of said combustion gas flow (F) relative to said first heatex- changer (9).
16. Heating device (1) as claimed in claim 15, characterized in that NH3 and H2O are stored in the absorption heat pump and H2 is stored in the absorption tank (68).
17. Heating device (1) as claimed in claim 14,15 or 16, characterized by a safety valve (56) terminating the action of the heat pump, said valve being coupled to a temperature feeler (62) in the combustion gas flow.
18. Heating device (1) as claimed in claim 17, characterized in that the safety valve (56) is formed so asto be regulating.
19. Heating device provided with a heating boiler, comprising an intake chamber having air inlet means and gas inlet means, at least one burner, at least one heat exchanger and at least one outlet for combustion gases, characterized by an absorption heat pump coupled with the heatofsaid combustion gases.
20. Heating device, substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8502377A NL192217C (en) | 1985-08-29 | 1985-08-29 | Heating device. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8620454D0 GB8620454D0 (en) | 1986-10-01 |
| GB2180058A true GB2180058A (en) | 1987-03-18 |
| GB2180058B GB2180058B (en) | 1989-08-09 |
Family
ID=19846483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8620454A Expired GB2180058B (en) | 1985-08-29 | 1986-08-22 | Heating device |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE905295A (en) |
| DE (1) | DE3627952A1 (en) |
| GB (1) | GB2180058B (en) |
| NL (1) | NL192217C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0291584A1 (en) * | 1986-01-31 | 1988-11-23 | Apparatenfabriek ATAG B.V. | Heating apparatus comprising a burner of the kind to which a substantially stoechiometric fuel/airmixture is supplied |
| EP0291583A1 (en) * | 1986-01-31 | 1988-11-23 | Apparatenfabriek ATAG B.V. | Heating apparatus |
| EP0357840A1 (en) * | 1988-09-07 | 1990-03-14 | "Stelrad Ideal" | Pressurized combustion chamber boiler provided with an inlet for secondary air |
| EP0764816A1 (en) * | 1995-08-25 | 1997-03-26 | Gastec N.V. | Draught limiting and injection device |
| EP2354701A2 (en) | 2010-01-21 | 2011-08-10 | Pyraine | Enhanced device and method for recovering heat from a gas containing water vapour |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10338103A1 (en) * | 2003-08-19 | 2005-03-24 | Alcaniz, Luis | Heat exchanger has pipes arranged in coil to provide large heat absorption surface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB257202A (en) * | 1926-04-26 | 1926-08-26 | Michael Mary Brophy | Improvements in gas heating stoves |
| GB540951A (en) * | 1940-05-20 | 1941-11-06 | Walter George Case | Improvements in or relating to the combustion product outlets of gas burning appliances |
| GB958645A (en) * | 1962-07-06 | 1964-05-21 | Webasto Werk Baier Kg W | Improvements in and relating to means for discharging the exhaust from air heaters |
| GB1370170A (en) * | 1973-03-15 | 1974-10-16 | Redfyre Ltd | Domestic water heating boiler |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE432887C (en) * | 1924-05-31 | 1926-08-19 | Gustav Korngiebel | Secondary draft regulator installed in a smoke duct extension |
| US1604271A (en) * | 1924-12-17 | 1926-10-26 | Ferdinand J Friedman | Furnace equipment |
| FR1281277A (en) * | 1960-10-26 | 1962-01-12 | Backflow preventer for gas water heaters or similar devices | |
| DE7919669U1 (en) * | 1979-07-10 | 1980-08-28 | Simon, Herbert, 2800 Bremen | DEVICE FOR PREVENTING THE CONDENSATION, IN PARTICULAR FOR USE IN HEATING CHIMNEYS |
| GB2060946B (en) * | 1979-10-09 | 1983-05-18 | Stelrad Group Ltd | Domestic heating system |
| NL8000460A (en) * | 1980-01-24 | 1981-08-17 | Laurentius Cornelis Johannes L | HEATING DEVICE. |
| DE3116992A1 (en) * | 1981-04-29 | 1982-11-18 | Buderus Ag, 6330 Wetzlar | Central heating boiler |
| GB8311260D0 (en) * | 1983-04-26 | 1983-06-02 | Patscentre Benelux Nv Sa | Boiler |
| US4494592A (en) * | 1983-05-03 | 1985-01-22 | Strayer Coin Bag Co. Inc. | Mailing bag with address mounting pocket and tamper proof tie securing means attachable to card and slide zipper preventing surreptitious access thereinto |
| DE3421112A1 (en) * | 1984-06-06 | 1984-10-11 | Paul Reinhard Dipl.-Ing. 8000 München Kramer | Device for carrying off waste gases at high temperature, in particular smoke gases from buildings, with which components of the waste gases are brought to condensation by as extensive as possible cooling to room temperature, the condensate is carried off and the condensation heat is recovered |
-
1985
- 1985-08-29 NL NL8502377A patent/NL192217C/en not_active IP Right Cessation
-
1986
- 1986-08-18 DE DE19863627952 patent/DE3627952A1/en not_active Ceased
- 1986-08-20 BE BE1/011537A patent/BE905295A/en not_active IP Right Cessation
- 1986-08-22 GB GB8620454A patent/GB2180058B/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB257202A (en) * | 1926-04-26 | 1926-08-26 | Michael Mary Brophy | Improvements in gas heating stoves |
| GB540951A (en) * | 1940-05-20 | 1941-11-06 | Walter George Case | Improvements in or relating to the combustion product outlets of gas burning appliances |
| GB958645A (en) * | 1962-07-06 | 1964-05-21 | Webasto Werk Baier Kg W | Improvements in and relating to means for discharging the exhaust from air heaters |
| GB1370170A (en) * | 1973-03-15 | 1974-10-16 | Redfyre Ltd | Domestic water heating boiler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0291584A1 (en) * | 1986-01-31 | 1988-11-23 | Apparatenfabriek ATAG B.V. | Heating apparatus comprising a burner of the kind to which a substantially stoechiometric fuel/airmixture is supplied |
| EP0291583A1 (en) * | 1986-01-31 | 1988-11-23 | Apparatenfabriek ATAG B.V. | Heating apparatus |
| EP0357840A1 (en) * | 1988-09-07 | 1990-03-14 | "Stelrad Ideal" | Pressurized combustion chamber boiler provided with an inlet for secondary air |
| EP0764816A1 (en) * | 1995-08-25 | 1997-03-26 | Gastec N.V. | Draught limiting and injection device |
| EP2354701A2 (en) | 2010-01-21 | 2011-08-10 | Pyraine | Enhanced device and method for recovering heat from a gas containing water vapour |
Also Published As
| Publication number | Publication date |
|---|---|
| NL8502377A (en) | 1987-03-16 |
| GB8620454D0 (en) | 1986-10-01 |
| NL192217C (en) | 1997-03-04 |
| NL192217B (en) | 1996-11-01 |
| BE905295A (en) | 1987-02-20 |
| GB2180058B (en) | 1989-08-09 |
| DE3627952A1 (en) | 1987-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1239841A (en) | Method of producing hot air and hot water for sanitary purposes and apparatus for carrying out the said method | |
| RU2333429C1 (en) | Condensation hot-water boiler for external accomodation | |
| US4452620A (en) | Installation for central heating and/or for the production of hot water for sanitary or industrial purposes | |
| GB2180058A (en) | Boiler | |
| US4392610A (en) | Heat scavenger | |
| US4660761A (en) | Flue gas heat pump | |
| NO783221L (en) | HEATING SYSTEM WITH HEAT PUMP. | |
| GB2115122A (en) | Heating boiler | |
| US2244831A (en) | Boiler and heat exchanger | |
| WO1985002247A1 (en) | Method and device for operation of a heating plant | |
| US2053590A (en) | Furnace | |
| CA1156112A (en) | Heat extractor | |
| US2320821A (en) | Economizing fluid fuel combustion system and method | |
| US4580530A (en) | Method in the operation of a firing plant, and a firing plant for performing the method | |
| CA2155935A1 (en) | Combustion apparatus | |
| JPH0646081B2 (en) | Hot air generation method and device | |
| US4651923A (en) | Heat extractor | |
| RU2449225C1 (en) | Condensation boiler of external installation | |
| RU2098720C1 (en) | Device for producing steam-gas mixture | |
| US4691666A (en) | Liquid heater with closed loop heat transfer system | |
| US447330A (en) | Steam heating apparatus | |
| NL8602071A (en) | Heating system with boiler - has draught interrupter with ejector at outlet for combustion gas | |
| US1781358A (en) | Installation for supplying and circulating heated | |
| JPS5589620A (en) | Combustor | |
| RU1793146C (en) | Boiler plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19970822 |