EP0044401B1 - Heizkamin - Google Patents

Heizkamin Download PDF

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Publication number
EP0044401B1
EP0044401B1 EP81104478A EP81104478A EP0044401B1 EP 0044401 B1 EP0044401 B1 EP 0044401B1 EP 81104478 A EP81104478 A EP 81104478A EP 81104478 A EP81104478 A EP 81104478A EP 0044401 B1 EP0044401 B1 EP 0044401B1
Authority
EP
European Patent Office
Prior art keywords
heat
exchanger
fireplace
exchanger part
water
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.)
Expired
Application number
EP81104478A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0044401A1 (de
Inventor
Hans Armin Burger
Wilhelm Gehrig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaminbau Burger's Soehne Inh H and U Burger
Original Assignee
BURGERS SOEHNE KAMINBAU
Kaminbau Burgers Sohne
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BURGERS SOEHNE KAMINBAU, Kaminbau Burgers Sohne filed Critical BURGERS SOEHNE KAMINBAU
Priority to AT81104478T priority Critical patent/ATE18295T1/de
Publication of EP0044401A1 publication Critical patent/EP0044401A1/de
Application granted granted Critical
Publication of EP0044401B1 publication Critical patent/EP0044401B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/183—Stoves with open fires, e.g. fireplaces with additional provisions for heating water

Definitions

  • the invention relates to a heating fireplace according to the preamble of claim 1.
  • a heating fireplace according to the preamble of patent claim 1 (FR-A-2 398 973), in which the chimney is double-walled for heating air for the space to be heated, the outer wall is provided with openings, and also under the chimney entering room air is to serve as heating air heating.
  • a serpentine pipe is arranged as a third heat exchanger part, the lower end of which is supplied with water coming from the second heat exchanger part.
  • the second heat exchanger part is arranged at a distance above the first and connected to it by a pipe section. Both heat exchanger parts are at a distance from the rear wall of the combustion chamber. Fresh air gets under the first heat exchanger part, then partly around its rear edge and through the space between the two heat exchanger parts into the combustion chamber and partly between the second heat exchanger part and the rear wall of the combustion chamber.
  • the hot combustion gases and the air to be heated for the room to be heated flow in the same direction during the heat exchange, provided that air rises in the double chimney jacket or is supplied under the chimney and enters the room to be heated.
  • the serpentine pipe through which the heat in the part of the combustion chamber located above the second heat exchanger part or in the chimney is made available for water heating, is built into the smoke extraction path.
  • the air preheated under the first heat exchanger part and flowing into the combustion chamber around its rear edge essentially rises under the action of the fire, so that the combustion air, which hardly serves as preheated, and the combustion air essentially comes from the room to be heated, with which this Heat is removed.
  • the second heat exchanger part cannot be carried by the pipe section alone, but must be fastened in the rear part of the combustion chamber. Ashes and soot can collect in the space between the two heat exchanger parts and fall down at the rear edge of the first heat exchanger part, where they form a flow resistance for the preheated air, which flows partly up into the combustion chamber and partly into the space between the second heat exchanger part and the rear wall of the combustion chamber . The air flowing there will also entrain fine ash and soot particles that would get into the room to be heated if this air were to serve as room heating.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a fireplace in which the transition of the combustion heat to fresh air to warm air heating and to the water in the heat exchanger is improved and the heat exchanger is easier to install, soot and ash more easily from the
  • the combustion chamber must be removed and cannot get into the air duct system, and the smoke flue gas extraction that is important in a heating fireplace is not impaired by built-in elements in the smoke extraction duct.
  • the advantages achieved by the invention are essentially to be seen in the fact that the fresh air for warm air heating is heated in the lintel channel, that is to say according to the countercurrent principle.
  • the thermal buoyancy in the downward flowing air leads to turbulence. This significantly improves the heat transfer from the heat-conducting plate and the rear wall of the second heat exchanger part to the air in the lintel channel.
  • the heat-conducting plate also leads to heat for heating the water from the upper part of the combustion chamber or from the chimney to the second heat exchanger part, with the advantage that it does not form any built-in parts in the smoke outlet path.
  • the heated fresh air is supplied to the room to be heated through the riser duct exposed to the heat of the fire, it is heated again with further use of the heat of combustion, and at the same time the draft required for the flow of this air is increased. Openings at the lower end of the riser duct can be used to circulate and heat the room air. Because the heat exchanger is a partition wall through which water flows between the air duct and the combustion chamber, it has a double function. Heat does not only pass from fire to water. In addition, heat is also transferred from the heated water to the air flowing through the channel. So there are two heat transfers. This removes heat from the water on the side of the heat exchanger that delimits the air duct.
  • the water flow is distributed through the baffles in the heat exchanger parts that are directly adjacent to one another. Flow-free areas are avoided.
  • the baffles improve the heat transfer because they take on the temperature of the heat exchanger wall and thereby increase the area on which the heat transfer takes place. Through the passage in the first heat exchanger part, heated fresh air passes directly to the lower part of the flames.
  • Fig. 1 is the base plate, 2 a base plate, 3 and 4 two mutually symmetrical side parts that laterally delimit the combustion chamber, 5 is an end plate which is cut in half for the purpose of broken down representation, 6 is the smoke collecting element of the fireplace.
  • a heat exchanger for heating the water of a (not shown) hot water heater consists of two parts 7 and 8, which are designed as flat sheet steel boxes and welded at right angles to each other so that their cavities are directly connected to each other.
  • the sheet thickness is 5 mm and the wall distance is 60 mm.
  • Part 7 of the heat exchanger forms the combustion chamber floor and lies on the base plate 2.
  • Its lower wall 9 delimits two draft channels, each of which is formed by an opening 11 in the base plate 2 and a depression 12 in the base plate 1, and on the one hand via a Control flap 13 for combustion air with the (not shown) fresh air collection point on the outside of the building and on the other hand through recesses 14 formed at the edge of the opening 11 and the fire grate (not shown) which is arranged in a through opening 15 of part 7 of the heat exchanger (FIGS. 2 and 4) communicate with the combustion chamber.
  • the other part 8 of the heat exchanger forms a lower part of the rear wall of the combustion chamber.
  • a heat-conducting plate 16 for example made of cast iron, connects to the front, upper edge of this part 8 of the heat exchanger and forms the upper part of the rear wall of the combustion chamber, which extends to the rear edge of an opening 17 formed in the end plate 5, which with a Regulating flap 18 is provided and leads into the smoke exhaust duct 19 of the noise collecting element 6.
  • a partition wall 21 extends at a distance behind the rear wall 8, 16 of the base plate 2 to almost the end plate 5. Between the partition 21 and the rear wall wall 8, 16, a lintel channel 22 is formed for fresh air coming from the fresh air collection point, the flow of which a regulating flap 23 can be regulated.
  • the lower end of the lintel channel 22 is connected by a recess 24 in the base plate 2 to the lower end of two riser channels, each of which is formed on the inside of one of the side parts 3 and 4 and is separated from the combustion chamber by a heat-conducting plate 30, for example made of cast iron, communicates with the room to be heated above through an opening 26 and, as already mentioned as a further development, also below an opening 29 leading into the room to be heated (with regulating flap 40).
  • the riser duct 25 with the upper opening 26, the lower opening 29 and the flap 40 is shown only in the left side part 3, which is separated from the combustion chamber by the heat-conducting plate 30.
  • the heat exchanger 7, 8 of the heating chimney can be used alone or in addition to a boiler, a solar collector, a heat pump or another device for heating water or a heated water-storing storage tank of a hot water heater, whereby it is used in series or with one or more such devices can be connected in parallel using mixing devices.
  • the fresh air to be heated flows in the direction of arrow 43 to the upper end of the lintel duct 22, is heated therein on the hot rear side of the rear wall 16, 41 of the furnace, passes through the recess 24 to the riser duct 25 in the left side part 3, which is exposed to the heat of the fire is and flows after the resulting further heating through the opening 26 into the room to be heated, and also through the (not shown) riser duct in the right side part 4.
  • the room is heated both by the radiant heat of the fire and by supplying the heated fresh air .
  • room air is also sucked in through the opening 29, which is heated in the riser channel and mixed with heated fresh air coming from the fall channel and then returns through the opening 26 in the room. Dad also applies to the riser duct (not shown) contained in the right side part 4. As a result, the air in the room is circulated and heated, and heated fresh air is mixed into it.
  • the water flowing through the heat exchanger 8, 9 acting as a flow heater is heated. It is not - as might be expected - that the water temperature is reduced by heating the air or the air temperature is increased by heating the water, but, as already explained above, more heat is removed from the combustion chamber and this increases the efficiency of the fireplace significantly.
  • the heat exchanger according to FIGS. 2 to 4 has a connecting piece 27 for the water inlet at an upper corner of part 8 and a connecting piece 28 for the water outlet at the other upper corner.
  • Pipes 31 and 32 are connected to these connecting pieces 27 and 28 and connect the heat exchanger 7, 9 to the water circuit of the hot water heating system (not shown in the rest).
  • the line 31 is either sideways through the riser channel 25 of the side part 3. or down through this channel 25 and then through a hole (not shown) in the base plate 2 and in the base plate 1 through to the part of the hot water heating installed in the basement of the house.
  • the other line 32 is likewise passed through the riser channel (not shown) in the other side part 4 either sideways or downwards through this channel, the base plate 2 and the base plate 1.
  • the plate 16 connects to the front, upper edge of the part 8 of the heat exchanger, so that the connecting pieces 27, 28 and the parts of the lines 31, 32 adjoining them run in the lintel channel where they are not exposed to the fire.
  • the heat exchanger according to FIGS. 2 to 4 is symmetrical to a vertical plane 33 running from the front to the rear.
  • the part 8 of the heat exchanger (FIGS. 2 and 3) is separated by a partition 34 which extends to the bottom 9 of the heat exchanger ( bottom wall of heat exchange: hurry. 7) extends into two chambers 35 and 36.
  • baffles 37 are arranged, which are directed in the chambers 35 and 36 obliquely downwards to the partition wall 34 or level 33 and in part 7 of the heat exchanger obliquely backwards to level 33.
  • a longitudinal edge of the guide plates 37 is welded to one of the walls 9 and 38 or 39 and 41, the other longitudinal edge is so close to the other of these walls that only an insignificant part of the water flow can pass the stopping point. This applies accordingly to the partition wall 34 (and also to the guide plates 51 in FIG. 5).
  • the heat exchanger according to FIGS. 2 to 4 is intended for a water circulation with a circulation pump.
  • a circulation pump thermosiphon circulation or so-called gravity operation
  • the water inlet on the front of part 7 and the water outlet on the upper side of part 8 would have to be provided in the middle.
  • the partition 34 would be omitted.
  • FIG. 5 differs from that according to FIGS. 2 to 4 in that its inlet connector 45 and outlet connector 46 are arranged at the front corners of the lower wall (bottom) 9 of the heat exchanger part 7, so that the connecting lines are directly vertically downward can be passed through the cavity 11 of the base plate 2 and through the base plate 1 (FIG. 1).
  • the inlet connector 45 leads to the part 7.
  • the outlet connector 46 is connected by a connecting tube 47 running above the bottom 9 of the parts 7 and 8 to a standpipe 48 which is arranged in the middle of the length of the part 8, closed at the bottom and open at the top .
  • the standpipe extends up to the top wall 49 of the heat exchanger part 8.
  • connection piece 52 is arranged for a line, which leads to an automatic vent (not shown).
  • This breather can be a float valve or a breather with a swell seal and is expediently placed in an easily accessible location of the fireplace, e.g. arranged in the opening 36 (Fig. 1). This prevents that during the heating of the water, separated steam or air accumulate in the heat exchanger part 8 at the top and push the water surface to below the opening of the standpipe 48, which could lead to disturbances in the water circulation and to overheating of the water in the heat exchanger.
  • the heat exchanger with the standpipe according to FIG. 5 is suitable for a heating fireplace which is used in a hot water heating system with a circulation pump.
  • a variant of the heat exchanger shown in FIG. 5 is suitable for use in the circulation of water by gravity (thermosiphon heating), in which the parts 46 to 48 have been omitted and instead a pump pump shown in the center of the upper wall 49 of the heat exchanger part 8 Water outlet connection 53 is provided.
  • the fireplace is used to heat water from a hot water heater that still has another hot water source, e.g. has a boiler or a hot water storage tank
  • the heated water supplied by the boiler or hot water storage tank would heat up the heating fireplace when the heat exchanger flows through without adequate use for heating the room in which it is located and with the regulating flap 18 ( Fig. 1) would then escape through the smoke exhaust duct 9 into the open.
  • a connecting piece 54 for a (not shown) immersion sleeve with a temperature sensor for a two-pump controller is provided on the upper wall 49 of the heat exchanger part 8, which interrupts the water circulation through the heat exchanger as long as the temperature at the temperature sensor deeper than e.g. Is 60 to 70 ° C.
  • the controller can switch off the circulation pump or close a valve in series with the heat exchanger in the case of water circulation by gravity.
  • a temperature sensor can also be used in the heat exchanger according to FIGS. 2 to 4. The same effect can be achieved with a temperature sensor which is located in the flue gas exhaust duct 19 or in a warm air duct, e.g. in the riser duct 25, and to a temperature of e.g. Responds to 40 ° C.
  • a fire grate 60 (Fig. 6, 7, 8) is arranged at a distance a of, for example, 3 cm above the heat exchanger part 7, which is almost the whole Surface of the heat exchanger part 7 extends, namely only on that or the parts of its circumference, which are located on the or the open sides of the combustion chamber, is set back with respect to the corresponding side or sides of the heat exchanger part 7.
  • this is only the front.
  • the grate has a raised edge, which prevents, in particular, glowing parts of the coal or briquettes burning on the grate.
  • the front ends 61 of the grate bars 62 are bent upward, and on the left and on the right side of the grate 60 a bar 63 or 64 is arranged closely above the upper level of the grate bars 62.
  • the grate bars 62 are welded to a front and a rear cross member 65 and 66.
  • a foot 67 is welded to the ends of the front cross member 65 and a foot 68 is welded to the ends of the rear cross member 66.
  • the feet 67 and 68 support the grate at a distance a above the heat exchanger part 7.
  • the grate 60 enables optimal combustion of coal or briquettes over practically the entire floor of the combustion chamber, in that the combustion air passes through the opening 15 into the space between the upper wall 38 of the heat exchanger part 7 and the grate 60 and from there to the fire between the grate bars 62 . Because of their higher calorific value, coals and briquettes require more combustion air and develop more flue gas than firewood.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air Supply (AREA)
  • Central Heating Systems (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Resistance Heating (AREA)
  • Saccharide Compounds (AREA)
EP81104478A 1980-07-21 1981-06-11 Heizkamin Expired EP0044401B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104478T ATE18295T1 (de) 1980-07-21 1981-06-11 Heizkamin.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH5556/80 1980-07-21
CH555680 1980-07-21
CH117881 1981-02-23
CH1178/81 1981-02-23

Publications (2)

Publication Number Publication Date
EP0044401A1 EP0044401A1 (de) 1982-01-27
EP0044401B1 true EP0044401B1 (de) 1986-02-26

Family

ID=25686904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104478A Expired EP0044401B1 (de) 1980-07-21 1981-06-11 Heizkamin

Country Status (14)

Country Link
US (1) US4426994A (xx)
EP (1) EP0044401B1 (xx)
BR (1) BR8104659A (xx)
CA (1) CA1166106A (xx)
DE (1) DE3173864D1 (xx)
DK (1) DK312581A (xx)
ES (1) ES8204829A1 (xx)
FI (1) FI71830C (xx)
GR (1) GR74963B (xx)
IE (1) IE51375B1 (xx)
IL (1) IL63307A0 (xx)
NO (1) NO151339C (xx)
PL (1) PL232290A1 (xx)
PT (1) PT73381B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162306A (en) * 1984-07-19 1986-01-29 Newman Frederick George Domestic fireplace
US4928667A (en) * 1989-09-12 1990-05-29 Tri Fire Holdings, Ltd. Gas fire heating unit
US5142999A (en) * 1991-05-17 1992-09-01 Axxon Corporation Incinerator with fluid-cooled hearth
ES2051150B1 (es) * 1991-06-10 1996-10-16 Delgado Candido Sebastian Generador de calor (tipo chimenea francesa) para el calentamiento de agua destinada a ser utilizada en instalaciones de calefaccion.
US5224650A (en) * 1991-07-16 1993-07-06 David Gozikowski Fireplace furnace heating system
DE102007005962B4 (de) 2007-02-07 2008-11-20 Spartherm Feuerungstechnik Gmbh Feuerungsstätte
US20090151711A1 (en) * 2007-12-17 2009-06-18 Hni Technologies Inc. Fireplace with exhaust heat exchanger
US8978639B2 (en) 2011-10-14 2015-03-17 Hearth & Home Technologies, Inc. Secondary room air heat exchanger and method of heating secondary room air
CN105180423A (zh) * 2015-10-14 2015-12-23 徐天鹏 节能环保锅炉

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH553948A (de) * 1972-12-06 1974-09-13 Superpart Ag Offene kaminfeuerstelle fuer wohnraeume.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961433A (en) * 1960-02-10 1964-06-24 Eric Raymond Hine Improvements in under-draught domestic firegrate appliances
FR2257064A1 (en) * 1974-01-07 1975-08-01 Breillet Christian Heat recovery device for chimney of a fire - has central heating water coil with valve controlled bypass
US4046320A (en) * 1975-05-02 1977-09-06 Johnson William A Fireplace boiler heating system for hot water type furnaces
FR2398973A1 (fr) * 1977-07-28 1979-02-23 Larroque Andre Cheminee a feu continu
FR2460447A1 (fr) * 1979-06-29 1981-01-23 Barrichon Paul Cheminee a feu apparent avec production d'air et d'eau chauds

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH553948A (de) * 1972-12-06 1974-09-13 Superpart Ag Offene kaminfeuerstelle fuer wohnraeume.

Also Published As

Publication number Publication date
FI71830B (fi) 1986-10-31
PL232290A1 (xx) 1982-02-01
NO151339B (no) 1984-12-10
DK312581A (da) 1982-01-22
NO812483L (no) 1982-01-22
EP0044401A1 (de) 1982-01-27
BR8104659A (pt) 1982-04-06
US4426994A (en) 1984-01-24
IE51375B1 (en) 1986-12-10
PT73381B (de) 1982-10-27
PT73381A (de) 1981-08-01
IE811526L (en) 1982-01-21
IL63307A0 (en) 1981-10-30
DE3173864D1 (en) 1986-04-03
GR74963B (xx) 1984-07-12
FI812206L (fi) 1982-01-22
CA1166106A (en) 1984-04-24
NO151339C (no) 1985-03-20
ES504110A0 (es) 1982-05-16
FI71830C (fi) 1987-02-09
ES8204829A1 (es) 1982-05-16

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