EP0006163A1 - Procédé et dispositifs pour diriger les gaz de combustion dans une chaudière - Google Patents

Procédé et dispositifs pour diriger les gaz de combustion dans une chaudière Download PDF

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Publication number
EP0006163A1
EP0006163A1 EP79101687A EP79101687A EP0006163A1 EP 0006163 A1 EP0006163 A1 EP 0006163A1 EP 79101687 A EP79101687 A EP 79101687A EP 79101687 A EP79101687 A EP 79101687A EP 0006163 A1 EP0006163 A1 EP 0006163A1
Authority
EP
European Patent Office
Prior art keywords
flue gas
flue
combustion chamber
gases
boiler
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
Application number
EP79101687A
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German (de)
English (en)
Other versions
EP0006163B1 (fr
Inventor
Wilfried Böder
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.)
Cessione ppt Pyrolyse - und Prozessanlagentechnik
Original Assignee
Ppt Pyrolyse- und Prozessanlagentechnik & Co GmbH
PPT Pyrolyse- und Prozessanlagentechnik AG
Pyrolyse & Prozessanlagentech
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
Priority claimed from DE2826048A external-priority patent/DE2826048C3/de
Priority claimed from DE2836251A external-priority patent/DE2836251C3/de
Application filed by Ppt Pyrolyse- und Prozessanlagentechnik & Co GmbH, PPT Pyrolyse- und Prozessanlagentechnik AG, Pyrolyse & Prozessanlagentech filed Critical Ppt Pyrolyse- und Prozessanlagentechnik & Co GmbH
Priority to AT79101687T priority Critical patent/ATE495T1/de
Publication of EP0006163A1 publication Critical patent/EP0006163A1/fr
Application granted granted Critical
Publication of EP0006163B1 publication Critical patent/EP0006163B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B7/00—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body
    • F22B7/12—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/22—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight
    • F22B21/26—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent helically, i.e. coiled
    • 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
    • F24H9/0026—Guiding means in combustion gas channels
    • F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas
    • 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
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel

Definitions

  • the invention relates to a method and to devices for guiding flue gas in a heating boiler, in which the flue gases leaving the combustion chamber are divided into several partial flows, these are passed over cooling sections with different effects, and by combining partial flows emerging from different cooling sections, a gas flow of a mixed temperature is generated, which is controlled depending on a predetermined control variable.
  • thermochemical processes for heating dryers in the wood or surface industry, for stenter frames in the textile industry, for dryers in the mineral industry or the like, it has proven to be necessary, however, with flue gases for direct or indirect heating in a temperature range to work between approx. 500 ° C and 900 ° C.
  • a method according to the preamble of claim 1 is known (British Patent No. 1 195 195), in which the dew point in the exhaust gas chimney is used as the control variable for the mixing temperature of the gas stream generated by merging partial streams emerging from different cooling sections.
  • temperature conditions can be set in the exhaust gas chamber upstream of the exhaust gas chimney, which would result in the occurrence of undesirable corrosion phenomena or the like. prevent on the exhaust side.
  • flue gases downstream a desired mixing temperature particularly within the important temperature range of about 500 ° C to 900 ° C l to a To deduct flue gas consumers.
  • the invention has for its object to provide a method for flue gas routing in a boiler, in which, while largely avoiding the disadvantages described, the operation of the boiler as a heat generator is the usual range of use with the simultaneous possibility of simple removal of flue gases of any temperature within a temperature range of approx 500 ° C to approx. 900 ° C is possible on a downstream flue gas consumer with stable combustion conditions and great economy. Furthermore, particularly suitable devices are to be created for carrying out such a method.
  • the object underlying the invention is achieved in a method according to the preamble of claim 1 in that the temperature of the gas stream controlled depending on the needs of a downstream flue gas consumer and a proportion of the gas flow corresponding to the needs of the flue gas consumption is discharged directly, that the flue gas portions not discharged to the flue gas consumer are passed over cooling sections and used to heat the heat transport medium in the boiler, and that the pressure the gas flow is kept substantially constant.
  • the advantages achieved by the method according to the invention are essentially to be seen in the fact that for the conventional heat generation of the boiler, the full radiant heat and the required convection heat can be removed, but at the same time flue gases of the desired or required temperature within the predetermined temperature range continuously for one downstream consumers can be deducted.
  • the use of the method according to the invention has the particular advantage that the combination of conventional heat generator and simultaneous flue gas supplier greatly increases the total emission due to the absence of a fireplace is reduced.
  • a particularly high level of economy is guaranteed, since the full radiant heat emitted by the flame generated can be used for conventional heat generation as well as the required convection heat. Even the residual flue gas that is not required for the downstream flue gas consumer is still used for heat emission for the heat generation side of the boiler until it is introduced into the flue gas fireplace.
  • An advantageous embodiment of the method according to the invention can be achieved in that the individual partial streams are completely merged again after passing through the cooling sections to form the gas flow controlled mixing temperature and the flue gas flow of all partial streams along the cooling sections is preferably controlled automatically to regulate the mixing temperature.
  • the flue gas discharge to the consumer can be adjusted after the partial streams have been mixed and the flue gas flow along at least the last cooling section can be throttled to produce a different flue gas resistance. This ensures that the smoke gases flowing into the flue gas chimney do not adversely affect the flue gas pressure of the entire system when the flue gas consumer is removed, so that the flue gas pressure regulation required for the proper operation of such a system is simple and easy to carry out.
  • a particularly good efficiency can be achieved if the flue gas is guided along the cooling sections downstream of the combustion chamber in counterflow to the flue gas duct in the combustion chamber itself and along the last cooling section.
  • the method according to the invention is advantageously used for flue gas routing in once-through boilers in such a way that the flue gases are divided into two partial streams, one of which is routed via the existing cooling sections (cooling coils) to the exhaust gas chimney and from there at least partially the other partial stream, which has been essentially uncooled until then remains, is mixed to generate the Casstrom controlled mixing temperature.
  • the flue gas temperature and the flue gas pressure are regulated where the gases are mixed together, so that the temperature is regulated according to the needs of the downstream flue gas consumer and the flue gas pressure according to the quantities required by this consumer. It is advisable to precede or override the temperature control with the pressure control.
  • the flue gas quantities required by the downstream flue gas consumer are subtracted after the cooled flue gases arriving from the different cooling sections have been brought together; they therefore no longer enter the last cooling section (to the flue gas chimney) and can no longer give off heat there.
  • this consumer is switched off, however, the full flue gas flow takes place as in the case of a conventional multi-pass heat generator, so that all the available energy is available for heat generation (steam generation, hot water production or the like).
  • a device for carrying out the method according to the invention is based on a device for guiding the flue gas in a heating boiler with a combustion chamber flushed with heat transport medium (e.g. water or steam) and several flue gas flues also flushed with heat transport medium, some of which, each as cooling surfaces, differ Large total cooling surface are formed, the flue gases can be discharged from the combustion chamber, can be fed in counterflow to the combustion chamber of a flue gas collection chamber and can in turn be supplied to a flue gas chimney by flue gas flues designed as cooling surfaces in counterflow.
  • heat transport medium e.g. water or steam
  • this device is characterized in that all of the flue gas flues leading from the combustion chamber lead to the flue gas collecting chamber, provide the flue gas chamber with an additional flue gas outlet for a downstream consumer, and an adjusting device for the complete or partial connection and disconnection of all outlet cross sections of the flue gas from the combustion chamber to the flue gas.
  • Collection chamber leading flue gas flues and a device are provided, by means of which the pressure in the flue gas collection chamber can be adjusted.
  • a control device is also provided, by means of which the flue gas outlet can be controlled through the additional flue gas outlet while keeping the total flue gas resistance constant.
  • the flue gas collecting chamber can advantageously be designed as a flue gas turning chamber completely flushed with the heat transport medium (cooling medium) at one end of the boiler.
  • the device according to the invention is not only relatively light and simple in construction, it also does not require great expenditure. A particularly simple 'construction is achieved when the control device for the flue gas outlet from the collection chamber through the additional flue gas outlet means disposed in this throttle and another of Einleitigan of the flue gases has in the exhaust stack upstream the throttle valve, wherein both throttles are then coupled together so that they are opposite in the event of an adjustment adjust to each other.
  • the total resistance on the flue gas side which is important for the proper operation of the entire burner, can be kept in the desired range in a simple and easy manner, and thereby reliably avoided that an undesirable pressure collapse in the flue gas area possibly occurs when a larger flue gas consumer is connected.
  • each flue gas flue preferably consists of a large number of closely spaced, mutually parallel individual pipes of the same cross section, which enables simple construction by using inexpensive commercially available pipes.
  • it can also prove advantageous to use cooling surfaces of a different geometric configuration instead of pipes or to use a single large cooling surface instead of a large number of individual cooling surfaces arranged next to one another.
  • An advantageous embodiment of the device according to the invention also consists in the fact that the setting device for the partial or total switching on and off of the flue gas flues emanating from the combustion chamber has a flap arranged in the flue gas collecting space, through which the inlet openings of each flue gas flue into the collecting chamber can be completely or partially closed.
  • This flap can be arranged so that with it the escape of flue gases from the individual cooling surfaces, depending on the position of the flap, is completely closed or continuously opened, with a suitable arrangement of the flap with the opening of a flue gas duct, a corresponding closing of the flue at the same time connected to others and thereby a continuous mixing of any mixing ratio is easily possible.
  • the setting device for the complete or partial switching on or off of the flue gas flues emanating from the combustion chamber is automatically adjustable or controllable as a function of a presettable flue gas temperature in the collecting chamber.
  • a device for blowing a cooling gas into the flue gas collecting chamber is provided in a device according to the invention.
  • a device for blowing a cooling gas into the flue gas collecting chamber is provided in a device according to the invention.
  • a device has a line provided between the exhaust gas chimney and the flue gas collecting chamber for blowing exhaust gases into the collecting chamber.
  • a device designed in this way can achieve a normal efficiency by flowing against all heating surfaces when the device for controlling the flue gas flow closes the flue gas duct against the passage of flue gases and can be designed according to DIN 4754, for example.
  • the removal device provided according to the invention in connection with the on Direction for controlling the flue gas flow in the various load ranges of the heater an equal amount of flue gas with an almost arbitrary temperature can be selected within a temperature range between about 500 ° C to about 900 ° C.
  • a particularly simple and effective and easily controllable embodiment of this device according to the invention can be achieved in that the device for controlling the flue gas flow is designed as a throttle valve arranged in the flue gas duct.
  • openings in the jacket pipe of the flue gas duct are further provided as a feed line for supplying the flue gases flowing in the area of the convection heating surfaces to the flue gas duct, said openings being arranged behind the device for controlling the flue gas flow, as seen in the direction of flow of the flue gases.
  • the openings are advantageously arranged evenly distributed over the casing pipe of the flue gas duct and are of the same size.
  • the openings distributed on the surface of the casing tube are provided in a specific, appropriate pattern and - perhaps also - in different sizes and shapes.
  • the uniform arrangement of openings of the same size and shape should ensure a sufficiently reliable and particularly uniform supply of the flue gases from all sides into the flue gas duct.
  • the openings are distributed over a surface area of the jacket tube which is surrounded on the outside by convection heating surfaces over its entire length. This ensures that only those flue gases that flowed along the convection heating surfaces and thus have already experienced a certain cooling can be introduced through the openings into the flue gas duct.
  • a particularly expedient embodiment is obtained in that the convection heating surfaces connected downstream of the radiation combustion chamber have a plurality of pipelines which are arranged radially offset from one another and which can be connected individually or jointly to and from the circuit of the heat transport medium.
  • the cooling effect of the heating surfaces for the heat transport medium, which is exerted on the flue gases flowing there can be regulated or changed in a simple manner, and thus the temperature of the flue gases entering the flue gas duct behind the throttle valve, which the gases directly from the radiation combustion chamber without cooling. in the flue gas duct flowing in to cool the flue gases to achieve the desired temperature.
  • the suction device has a fan, by means of which a negative pressure can be generated in the flue gas duct for sucking in flue gases.
  • This fan first ensures that a certain amount of flue gases, which is essentially of the same size and corresponds to its output, is continuously drawn off through the flue gas duct.
  • the throttle valve By adjusting the throttle valve, the cross section of the flue gas duct is entered controls the flue gases arriving directly from the radiation combustion chamber, only a corresponding proportion of uncooled, hot flue gases is let in;
  • the relative negative pressure in the flue gas duct behind the throttle valve compared to the surroundings of the flue gas duct causes the flue gases that have already cooled there to flow to a certain extent from the surroundings (i.e.
  • Throttle valve enter this and can cool the hot flue gases taken directly from the radiation combustion chamber accordingly.
  • the total of the flue gas mixture obtained, which corresponds to the desired temperature, is then fed to the downstream consumer via the fan, while the flue gases which do not enter the flue gas duct are finally introduced into the flue gas chimney after they have flowed through the convection heating surfaces.
  • An additional throttle valve is advantageously arranged in the discharge line for the flue gases to the chimney and in the flue gas duct between the suction device (e.g. fan) and the control device (e.g. throttle valve for the flue gas flow), both throttle valves being adjustable depending on one another It is ensured that regardless of the inlet opening of the throttle valve in the flue gas duct, the total resistance on the flue gas side is large enough to maintain stable combustion.
  • control device for controlling these two throttle valves and the control device for the gas flow in the flue gas duct are also provided as a function of a specified flue gas extraction temperature for a specified flue gas extraction quantity. This can be particularly easy for. B. done via a suitably placed thermocouple, via which the desired flue gas temperature is specified.
  • the control device provided according to the invention now controls the control device for the inlet of the uncooled hot flue gases from the radiation combustion chamber (“control flap”) in such a way that this predetermined temperature can be maintained.
  • FIG. 1 shows a basic illustration of a heating boiler 1 which is filled with a heat transport medium 2 (water, steam or a suitable other medium).
  • a heat transport medium 2 water, steam or a suitable other medium.
  • a combustion chamber 3 on the one side (in FIG. 1: right) of which a burner 4 is shown schematically, which receives the air required for combustion via a fan 5 and the fuel required via a line 6.
  • the hot flue gases generated within the combustion chamber 3 flow along the combustion chamber, are diverted at its other end (as shown by the arrows) and enter two flue gas flues 7 and 8 in counterflow.
  • the representation of the flue gas flues 7 and 8 in FIG. 1 is only of a fundamental nature and is not intended to explain anything about a suitable design of these flue gas flues.
  • the flue gas flues themselves are preferably represented by a plurality of smaller or larger pipes running parallel to one another, as can be seen, for example, from the representation according to FIG. 2.
  • the flue gas flues 7 and 8 should be designed so that the total cooling surface of an R flue gas flue that is present differs from that of any other flue gas flue originating from the combustion chamber 3. This leads to the fact that the proportion of flue gases, for example, in the cooling section or the flue gas flue 7 occurs, is cooled to a different extent than the proportion of flue gases that enters another flue gas flue (such as flue gas flue 8). As can be seen from FIG. 1, the flue gas flues are in turn completely flushed by the heat transport medium 2 over their entire length.
  • the cooled flue gases then enter a flue gas collection chamber 9, which also (as not shown in FIG. 1) can in turn be designed as a reversing chamber for the flue gases which is completely flowed around by the heat transport medium 2.
  • a control flap 12 arranged in the flue gas collection chamber 9 the individual volume flows of the cooled flue gases emerging from the various flue gas ducts 7 and 8 can be controlled such that the desired mixing temperature can be set within the flue gas collection chamber 9.
  • part of the merged flue gases with the new mixing temperature exits to a consumer 16 via an additional flue gas outlet 15, which can be closed or opened via a throttle valve 13, while the remaining part of the flue gases comes from the flue gas -Collecting chamber 9 enters a last flue gas flue 10 (last cooling section) and is introduced into a flue gas chimney 11 via a throttle valve 14.
  • the throttle valves 13 and 14 are coupled to one another in such a way that a desired smoke gas pressure is always maintained in the flue gas collecting chamber 9, so that the pressure conditions in the flue gas part of the system comply with the level required for continuous operation.
  • the heat transport medium 2 heated in the system is fed via a transport line 3 to a consumer 24 and from there it is fed back into the boiler via the transport line 25.
  • a device 18 is furthermore attached, via which additional additional cooling gas can optionally be introduced into the mixing area of the collecting chamber, which - in the example shown in FIG. 1 - is taken directly from the exhaust gas chimney 11 via a line 17 becomes.
  • a pressure control device 19 is also provided, which immediately causes a corresponding adjustment of the throttle valves 13 and 14 in the event of control deviations.
  • the flue gases guided from the flue gas collecting chamber 9 via the additional flue gas outlet 15 to the flue gas consumer 16 are then likewise fed to the exhaust gas chimney 11 after they have been used.
  • the flue gas flue 10 as the flue gas flue leading from the collecting chamber 9 (FIG. 1) to the exhaust gas chimney 11 (FIG. 1) consists in the illustration according to FIG. 2 of a multiplicity of tubes 22 of relatively small diameter, which in turn are arranged closely together.
  • tubes 22 of relatively small diameter, which in turn are arranged closely together.
  • even more flue gas flues could be provided within the given space, for example between the flue gas flues 7 and 8 with tube diameters that lie between those of the tubes 20 and 21.
  • Can too the position of the pipes may be different, for example in such a way that the flame tube 26 is not arranged at the top but laterally in the heating boiler 1 and the various flue gas flues are also provided on the side.
  • FIG 3 shows a further embodiment of a device according to the invention, which is designed here as a once-through boiler.
  • rows of pipe guides 7 'and - with an even greater distance from the flame - pipe guides 8' are arranged around the area of the flame, preferably helically, at substantially the same distance from the flame, through which heat transport medium is forced to be pumped continuously.
  • the radiation energy released as well as the convection energy are transferred here to the heat transport medium flowing in the pipe guides 7 'and 8'.
  • the flue gases are first deflected axially after passing through the burning section, then guided along the pipe guides 7 'and then, after renewed axial deflection, that is again in counterflow along the pipe guides 8', in order to finally enter an exhaust stack 11 ' to enter.
  • both the flue gas flow through the channel 31 and the volume flow of the flue gases which can be supplied from the flue gas chimney 11 'via the line 30 to the flue gas collecting chamber 9' can each be controlled in order to achieve the desired level for the flue gas consumer connected downstream Temperature of the fumes to be extracted in any case and easy to adjust.
  • Simple configurations for the mixing mechanism within the flue gas collecting chamber 9 ' can be used analogously to the devices shown in FIG. 1.
  • a heating boiler 1 designed as a once-through boiler is provided with a burner 4; the burner 4 is supplied with the fuel required for combustion via a fuel line 6 and the necessary air is fed through a fan 5.
  • a series of pipelines 37 are arranged in a radial distance from the burner 4 in a spiral around the central axis of the boiler 1.
  • These pipes 37 are flowed through (which is shown in the figure only by way of example in some places) of heat transport medium 2, for which they serve as heating surfaces.
  • the arrangement and the wide radial distance of the pipes 37 to the burner 4 are selected such that the pipes 37 act as radiant heating surfaces in the front (ie in FIG.
  • the cooled, not otherwise used flue gases are then fed to a chimney 46 via an outlet 47 in which a throttle valve 44 is arranged.
  • the rows of tubes designed as convection heating surfaces are connected downstream of the radiation combustion chamber 33, which in turn essentially consists of the flame area and the part of the tube row 37 surrounding it at a great distance (used there as radiant heating surfaces).
  • This radiation combustion chamber is also a central one arranged tubular flue gas duct 40 downstream, around which the convection heating surfaces are arranged.
  • the convection heating surfaces can each be individually connected to and disconnected from the circuit of the heat transfer medium.
  • a throttle valve 32 is arranged within the flue gas duct 40 at a location which, as seen in the direction of flow of the flue gases, is provided behind the location where the first lines of the convection heating surfaces are provided for cooling the flue gases emerging from the radiation combustion chamber. Furthermore, as seen in the direction of flow of the flue gases, openings 41 are provided behind the throttle valve 32 in the pipe wall of the flue gas duct 40, through which already cooled flue gases flowing between the pipes serving as convection heating surfaces can flow into the flue gas duct 40 from the outside. From the flue gas duct 40, the flue gases are fed to a flue gas consumer 46 via a suitable line 28, a suction device designed as a fan 37 being interposed in line 28, downstream of the flue gas duct.
  • a further throttle valve 43 is provided which, in connection with the throttle valve 44 provided in the outlet 47, can be controlled (which will be explained later) in such a way that the flue gas-side resistance required for stable combustion in the combustion chamber 33 is always present is ensured.
  • a heat sensor 55 designed as a thermocouple, by means of which the temperature of the flue gas flowing in the flue gas duct 40 can be determined shortly before the throttle valve 43.
  • a control device 48 is provided which regulates the flaps to regulate a desired flue gas temperature for the flue gases flowing in line 28 32, 43 and 44 in a suitable manner via signal flow lines 50, 51 and 52.
  • a signal corresponding to the instantaneous temperature of the flue gases in front of the throttle valve 43 is input as a controlled variable from the thermocouple 55 via a signal flow line 49.
  • the heat transport medium 2 from the heating surfaces of the boiler 1 is fed via a line 23 to a downstream heat consumer 24 and is fed back into the boiler 1 by the latter.
  • a corresponding pump device 35 is provided in line 23 to maintain the circuit.

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  • 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)
  • Chimneys And Flues (AREA)
EP79101687A 1978-06-14 1979-05-31 Procédé et dispositifs pour diriger les gaz de combustion dans une chaudière Expired EP0006163B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79101687T ATE495T1 (de) 1978-06-14 1979-05-31 Verfahren und vorrichtungen zur rauchgasfuehrung in einem waermekessel.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2826048A DE2826048C3 (de) 1978-06-14 1978-06-14 Anordnung zur Rauchgasführung und Rauchgasentnahme bei einem Wärmekessel
DE2826048 1978-06-14
DE2836251 1978-08-18
DE2836251A DE2836251C3 (de) 1978-08-18 1978-08-18 Anordnung zur Rauchgasführung und Rauchgasentnahme in einem Wärmekessel

Publications (2)

Publication Number Publication Date
EP0006163A1 true EP0006163A1 (fr) 1980-01-09
EP0006163B1 EP0006163B1 (fr) 1981-12-23

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EP79101687A Expired EP0006163B1 (fr) 1978-06-14 1979-05-31 Procédé et dispositifs pour diriger les gaz de combustion dans une chaudière

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US (1) US4291649A (fr)
EP (1) EP0006163B1 (fr)
CA (1) CA1127481A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034786A1 (fr) * 1980-02-18 1981-09-02 Siemens Aktiengesellschaft Procédé pour actionner une chaudière et dispositif pour la mise en oeuvre du procédé
EP4311981A1 (fr) * 2022-07-29 2024-01-31 Heuft Besitzgesellschaft GmbH & Co. KG Chaudière à biomasse à huile thermique

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FR2443643A1 (fr) * 1978-12-06 1980-07-04 Creusot Loire Appareil de chauffe fournissant de la vapeur d'eau et du gaz chaud
US4355601A (en) * 1981-09-25 1982-10-26 Conoco Inc. Recirculating flue gas fluidized bed heater
US4453498A (en) * 1981-11-20 1984-06-12 Energiagazdalkodasi Intezet Gas- or oil-burning warm water, hot water or steam boiler
HU185530B (en) * 1982-05-18 1985-02-28 Koezponti Valto Hitelbank Gas- or oil-fired warm water, hot water or steam boiler
US4442799A (en) * 1982-09-07 1984-04-17 Craig Laurence B Heat exchanger
US4671213A (en) * 1986-03-21 1987-06-09 Horng Horng Her Structural improvement in the burning chamber of a horizontal boiler
CN1193190C (zh) * 2000-05-19 2005-03-16 国际壳牌研究有限公司 用于加热蒸汽的方法
US20040234918A1 (en) * 2003-05-22 2004-11-25 Velke William H. Combination of devices operational to increase the efficiency of storage tank or flow-through type waterheaters and hydronic boilers
US20120285399A1 (en) * 2011-05-11 2012-11-15 Paul Tyler Gas hot water heater preheater
US8955467B1 (en) * 2013-01-08 2015-02-17 William Parrish Horne Steam boiler
US9618232B2 (en) 2013-04-16 2017-04-11 Theodore S. BROWN Conversion of single-pass boiler to multi-pass operation
US10549599B2 (en) * 2015-07-06 2020-02-04 Korea Institute Of Energy Research Hybrid type heating system capable of supplying heat and hot water
US10352585B1 (en) 2018-02-09 2019-07-16 Theodore S. BROWN Multi-pass boiler and retrofit method for an existing single-pass boiler
CN111750382B (zh) * 2020-07-04 2024-07-12 临沂齐胜环保设备有限公司 一种多功能取暖炉

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EP0034786A1 (fr) * 1980-02-18 1981-09-02 Siemens Aktiengesellschaft Procédé pour actionner une chaudière et dispositif pour la mise en oeuvre du procédé
EP4311981A1 (fr) * 2022-07-29 2024-01-31 Heuft Besitzgesellschaft GmbH & Co. KG Chaudière à biomasse à huile thermique

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US4291649A (en) 1981-09-29
EP0006163B1 (fr) 1981-12-23
CA1127481A (fr) 1982-07-13

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