EP0006215B1 - Continuous-flow heater - Google Patents

Continuous-flow heater Download PDF

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Publication number
EP0006215B1
EP0006215B1 EP79101903A EP79101903A EP0006215B1 EP 0006215 B1 EP0006215 B1 EP 0006215B1 EP 79101903 A EP79101903 A EP 79101903A EP 79101903 A EP79101903 A EP 79101903A EP 0006215 B1 EP0006215 B1 EP 0006215B1
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EP
European Patent Office
Prior art keywords
continuous flow
water heater
pipe
accordance
caldron
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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
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EP79101903A
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German (de)
French (fr)
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EP0006215A1 (en
Inventor
Ludwig Dr.-Ing. Huber
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Individual
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Individual
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Priority to AT79101903T priority Critical patent/ATE89T1/en
Publication of EP0006215A1 publication Critical patent/EP0006215A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C15/00—Apparatus in which combustion takes place in pulses influenced by acoustic resonance in a gas mass
    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

Definitions

  • the invention relates to a hot water instantaneous water heater in which, in a boiler through which water flows, an oscillating fire unit arranged on a cover is immersed, which is provided by an air cylinder containing an intake silencer and a combustion chamber connected to the intake silencer via a mixing tube adjoining this vibrating tube, an exhaust gas silencer into which the vibrating tube opens, and is formed by an exhaust gas pipe leading away from it.
  • Such water heaters are known (DE-C-19 22 650). In this known arrangement, however, it is not guaranteed that the entire water flowing through the container between the water supply and water drainage is actually optimally heated; Furthermore, the exhaust muffler surrounding the intake silencer, as it were, like a ring, prescribes a certain complexity of the installation space with regard to the diameter of the entire arrangement; Furthermore, a relatively space-consuming arrangement must also be chosen in order to obtain the length of the oscillating tube necessary for a stable oscillation process.
  • the object of the invention is accordingly to develop a hot water heater of the type mentioned so that the most effective use of the heat generated in the oscillating fire unit is guaranteed.
  • a space-saving, compact construction is to be ensured, in which the individual components are nevertheless maintenance and assembly-friendly, i.e. are arranged easily and easily accessible.
  • the exhaust silencer is cylindrical and is arranged vertically next to the air cylinder and its size is approximately equal to the size of the air cylinder, that the combustion chamber is arranged above the air cylinder and the oscillating tube in a horizontal plane starting from the combustion chamber, with the end of the oscillating tube being slightly inclined towards the exhaust silencer with respect to this plane, and that the entire oscillating fire unit in the boiler through which the water flows is essentially between the water supply at the lower end of the boiler and the water discharge at the upper end of the Boiler is arranged.
  • the essence of the label is that the air cylinder (with Ans eye muffler) and the exhaust muffler are arranged vertically next to each other, that the combustion chamber is arranged above that the oscillating pipe runs in the plane above the two cylinders and that the entire arrangement practically "hangs" on the cover so that it comes out of the boiler with it can be removed.
  • This entire compact unit is also located in the boiler between the water inlet on the bottom and the outlet at the top of the boiler below the lid. An extremely compact construction is thus achieved overall.
  • the heating is optimal in that the strongest heating - namely through the entire length of the vibrating tube and the combustion chamber - takes place shortly before the water drain, the water being preheated by the other assemblies also immersed in the boiler before it reaches this point has been.
  • all elements heated in any way by the oscillating fire system - including the silencer - contribute to the heating of the water.
  • the fact that all these elements are surrounded by water results in further sound absorption.
  • the assemblies are also arranged in relation to one another in such a way that the water cannot find its way to locations within the boiler where it does not necessarily have to come into contact with elements heated by the oscillating fire system.
  • the assembly of the two cylinders with the combustion chamber lying above them and the arrangement of the vibrating tube in one plane lead to a kind of forced guidance of the water in the sense of optimal heating. This results in an optimal use of the heating value of the fuel; the exhaust gas is discharged practically lukewarm. The efficiency is over 99%.
  • the invention further relates to various advantageous developments.
  • the boiler 1 is formed by a boiler 1 with a bottom 2, which is seated on a device box 3. It is insulated with an insulating layer 4. On the underside of the boiler, this water is supplied via a water supply 5. When using the hot water instantaneous water heater in the closed water circuit, this is the so-called return. The water rises in the boiler after heating, as described below, and exits the boiler through the water drain 6, the so-called flow.
  • the boiler 1 is covered at the top by a cover 7, which is sealed on the boiler 1 with the aid of seals 8.
  • the cover 7 is provided with an insulating layer 4 '.
  • An oscillating fire immersion heater assembly 9 is now arranged on the cover 7 from above into the boiler 1.
  • the air cylinder 10 into which the pipe socket 11 protrudes, which is connected via an elastic hose piece 12 to a further pipe socket 13 fixedly arranged in the cover 7 in order to introduce air into the air cylinder from the space 14 above the cover 7; an intake silencer 15 into which the air from the air cylinder 10 enters through inlet openings 16; a check valve 17, via which air from the intake silencer 15 enters the mixing tube 18; a gas supply 19, to which the gas serving as fuel is supplied via line 20 and from which it exits into the mixing tube 18; a spark plug 21 for initiating the combustion process at the start of the oscillating fire combustion, to which the high voltage is supplied via a line 22; a combustion chamber 23 adjoining the mixing tube 18, in which the gas / air mixture is deflagrated; the “pretzel-shaped (see also FIG.
  • connection of the connecting line 31 and the exhaust line 32 is detachable via a screw connection 33.
  • the lines 20, 22 are detachably connected to the lines 20 ', 22' and these connections (not shown) are also located above the cover 7 in the for the Fittings and controls provided space 14 within the cover 35.
  • the screw connection 33 is designed such that it creates a detachable connection of the exhaust pipe 32 with the cover 7, so that the cover 7 can be removed when this connection is released.
  • the exhaust pipe 32 is firmly inserted in the bottom 2 of the boiler 1 on the underside.
  • a riser pipe 36 is also fixedly connected to the cover 7 by means of a detachable screw connection 37. When this screw connection is loosened, the cover 7 can be removed from the riser pipe 36.
  • the line 20 'for supplying the gas, which is connected to the line 20, and the line 22' for supplying current to the spark plug 21, which is connected to the line 20, are to the connections in the equipment box 3 passed through.
  • Fresh air is also drawn in through the riser pipe 36. This is done from the equipment box 3, into which the fresh air can enter dust-free through the slots 38 and (not shown) air filter.
  • the cover 7 with the entire oscillating fire immersion heater assembly 9 can be removed, so that any maintenance work or the like can be carried out on the entire assembly in an extremely simple manner.
  • the further fittings are then still provided within the cover 35.
  • the cold water enters the boiler 1 from below through the water supply 5 and flows around the air cylinder 10, the exhaust gas cylinder 26 and furthermore the combustion chamber 23 and the oscillating tube 24. It thus makes a considerable contribution to further noise reduction in addition to the mufflers .
  • the water is then heated above the air cylinder 10 or the exhaust gas cylinder 26 by the heat given off by the vibrating tube 24 and then emerges somewhat above this area through the water discharge 6.
  • Vibration damping takes place through the suspension of the air cylinder and exhaust gas cylinder on the elastic hose sections 12 and 28, respectively. Sound attenuation takes place through the silencers and through the arrangement of the various lines, for example 22, 39, 20, 20 ', 22' in flow-through pipes. A further vibration damping takes place in that the entire arrangement stands on rubber feet 41.
  • the arrangement of the oscillating tube 24 can be seen in particular from FIG. 2; its length is determined by the resonance conditions of an oscillation of 100-125 Hz; it is therefore not variable.
  • the arrangement shown solves the problem of arranging a vibrating tube particularly cheaply and particularly effectively in the smallest space; in the arrangement shown there are in particular the largest possible radii of curvature and thus a low flow resistance in the interior of the oscillating tube, and on the other hand a minimal space requirement, it being possible for the arrangement to take place at the most convenient point for the process of continuous heating.
  • the course of the vibrating tube 24, designated by A and B, the axes of the air cylinder 10 and the exhaust gas cylinder 26 arranged vertically in the boiler can be described as follows: starting from the combustion chamber 23, which is somewhat eccentric to the axis above the air cylinder 10 A is arranged, the vibrating tube 24 initially runs towards the wall of the boiler 1 in such a way that it ends tangentially in an arc around the axis B running as close as possible to the wall of the boiler 1, approximately at point C. The vibrating tube 24 runs from C. then, following this circle around B for a little more than a semicircle, to point D.
  • Connections 20 ', 5, 22', 32 for gas, water, electricity and exhaust gas are arranged on the right-hand side of the device box 3 (in FIG. 2).
  • the lid 35, according to FIG. 3a, the oscillating fire immersion heater arrangement 9 according to FIG. 3b, the boiler 1 according to FIG. 3c and the device box 3 according to FIG. 3d each separately assembled and provided.
  • the oscillating fire immersion heater assembly 9 also includes an instrument panel 44 fastened to the cover 7 by means of supports 43, which in the assembled state (cf. also FIG. 1) through an opening 42 protrudes through the cover 35.
  • the advantage of the aggregate division shown is that the oscillating fire immersion heater arrangement 9 according to FIG.
  • the oscillating fire immersion heater assembly 9 can now, as shown in FIG. 3f, be inserted into the boiler 1, which, as shown in FIG. 3g, has already been mounted on the equipment box 3 beforehand. Then, as shown in Fig. 34, the lid 35 is put on. The entire arrangement is shown in Fig. 3h. Maintenance is similarly simple; it is only necessary to remove the cover 35 and then to remove the cover 7. It can then be serviced immediately with the entire oscillating fire immersion heater arrangement 9 in an easily accessible manner or even - if repair is necessary - can be replaced. The exchange of individual units is particularly easy in this way.
  • FIG. 4 and 5 show an embodiment with an increase in the heat output to twice the value. This is done in that - with otherwise identical components - two combustion chambers and two oscillating tubes are arranged.
  • the two combustion chambers 123-1 and 123-2 sit above the air cylinder 110, connected to it in the manner shown in FIG. 6, somewhat eccentrically to the axis A. They are arranged relative to one another with a height difference of, for example, 30 mm in such a way that the vibrating tubes 124-1 and 124-2 emerging from them can be arranged directly above one another at this short distance, with essentially the same shape. They are connected to one another at their respective ends 125-1 and 125-2 in terms of vibrations with the aid of a coupling piece 146.
  • This coupling piece serves to couple the vibrations in the two combustion chamber / vibrating tube systems in such a way that the vibrations each have a phase shift of 180 ° with respect to one another. This ensures the stability of the vibrations of both vibration systems in push-pull.
  • the coupling piece 146 is used for mounting in the exhaust gas cylinder 126. If the cross sections for the intake air have been chosen to be sufficiently large in the exemplary embodiment with only one vibration system, the simple measure of mounting two vibration systems one above the other with only a little more construction cavity of the entire device twice the performance can be achieved. As can be seen from Fig.
  • the cross section of the boiler 1, in deviation from the shape shown in FIG. 2 or FIG. 5, in which it encloses the cylinders standing vertically next to one another, namely the air cylinder 10 and the exhaust gas cylinder 26, is also round can be. Then the capacity of the boiler increases. The round shape is more favorable for strength. Otherwise, the arrangement - with appropriate adaptation of the cover 7 - can remain the same.
  • the air cylinder 10 and the exhaust cylinder 28 are formed in two parts.

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  • 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)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Details Of Fluid Heaters (AREA)

Abstract

A continuous flow water heater utilizes a submersible pulsating heating mechanism. A continuous flow water heater is provided with a caldron which may be closed by means of a cover. The pulsating heating mechanism may be mounted to the caldron cover with the pulsating heating mechanism and the cover being readily removable. The pulsating heating mechanism extends downward into the caldron. The pulsating heating mechanism is formed by a vertically standing sound muffling air cylinder with an intake muffler, a combustion chamber and a pulsation pipe connected to the combustion chamber. The pulsation pipe exhausts into a cylindrically shaped substantially vertically mounted exhaust muffler cylinder mounted adjacent to the air cylinder within the caldron. The caldron may be made of a synthetic material as the highest temperature which it must withstand is that of the temperature of the water to be heated. The water to be heated enters from the bottom of the caldron, is heated by the air and exhaust cylinders as it rises, and is heated to its highest temperature near the top of the caldron where it exits by means of a pretzel-shaped pulsation pipe. The heating capacity may be doubled by using a second substantially identical pulsating heating mechanism which operates 180 DEG out of phase without increasing the volume of the exhaust cylinder.

Description

Die Erfindung betrifft einen Warmwasser-Durchlauferhitzer, bei dem in einen vom Wasser durchströmten Kessel von oben her eine an einem Deckel angeordnete Schwingfeuereinheit eintaucht, die durch einen senkrecht stehenden einen Ansaugschalldämpfer enthaltenden Luftzylinder, eine mit dem Ansaugschalldämpfer über ein Mischrohr in Verbindung stehende Brennkammer, ein sich an diese anschließendes Schwingrohr, einen Abgasschalldämpfer, in den das Schwingrohr mündet, sowie durch eine von diesem abgehende Abgasleitung gebildet wird.The invention relates to a hot water instantaneous water heater in which, in a boiler through which water flows, an oscillating fire unit arranged on a cover is immersed, which is provided by an air cylinder containing an intake silencer and a combustion chamber connected to the intake silencer via a mixing tube adjoining this vibrating tube, an exhaust gas silencer into which the vibrating tube opens, and is formed by an exhaust gas pipe leading away from it.

Derartige Warmwasser-Durchlauferhitzer sind bekannt (DE-C-19 22 650). Bei dieser bekannten Anordnung ist jedoch nicht gewährleistet, daß das gesamte durch den Behälter zwischen Wasserzuleitung und Wasserableitung hindurchströmende Wasser tatsächlich optimal erwärmt wird ; ferner ist durch den den Ansaugschalldämpfer gleichsam wie ein Ring umgebenden Abgasschalldämpfer eine gewisse Aufwendigkeit des Bauraumes im Hinblick auf den Durchmesser der gesamten Anordnung vorgegeben ; ferner muß eine relativ raumaufwendige Anordnung auch gewählt werden, um die für einen stabilen Schwingvorgang notwendige Länge des Schwingrohres zu erhalten.Such water heaters are known (DE-C-19 22 650). In this known arrangement, however, it is not guaranteed that the entire water flowing through the container between the water supply and water drainage is actually optimally heated; Furthermore, the exhaust muffler surrounding the intake silencer, as it were, like a ring, prescribes a certain complexity of the installation space with regard to the diameter of the entire arrangement; Furthermore, a relatively space-consuming arrangement must also be chosen in order to obtain the length of the oscillating tube necessary for a stable oscillation process.

Aufgabe der Erfindung ist es demgemäß, einen Warmwasser-Durchlauferhitzer der eingangs genannten Art so weiter zu bilden, daß eine möglichst effektive Ausnützung der in der Schwingfeuereinheit entstehenden Wärme gewährleistet ist. Dabei soll gleichzeitig ein raumsparender kompakter Aufbau gewährleistet sein, bei dem die einzelnen Bauelemente jedoch dennoch wartungs- und montagefreundlich d.h. leicht und einfach zugänglich angeordnet sind.The object of the invention is accordingly to develop a hot water heater of the type mentioned so that the most effective use of the heat generated in the oscillating fire unit is guaranteed. At the same time, a space-saving, compact construction is to be ensured, in which the individual components are nevertheless maintenance and assembly-friendly, i.e. are arranged easily and easily accessible.

Weiterhin ist durch die britische Patentschrift 870, 444 eine Anordnung bekannt geworden, bei der die Luft von der Umgebung in einen Raum (k) eintritt, der außerhalb des von Wasser gefüllten Kessels vorgesehen ist. Die Luft läuft dann durch ein perforiertes Rohr (m) in einem weiteren Raum (kl) aufwärts und tritt dann vom oberen Ende dieses Rohres her über einen weiteren Raum (a) ein, der oberhalb eines Deckels (f) vorgesehen ist, welcher den Wasserbehälter oben abschließt. Die Eingangsschalldämmung findet also in einem Raum (kl) außerhalb des Wasserbehälters statt. Dieser Raum muß seinerseits wieder entsprechend schallisoliert werden. Außerdem ist der Zusammenbau relativ umständlich, wenn diese einzelnen Kammern zu Wartungszwecken demontiert werden müssen. Bei der genannten britischen Patentschrift tritt das Gas durch eine Öffnung (e) in einen Gasvorratsbehälter (d) ein. Über ein Ventil (t) gelangt das Gas dann in eine Vermischungskammer (w) und tritt von dort über eine Rückschlagsicherung in die darunter liegende Brennkammer (g) aus. Im unteren Bereich der Brennkammer sind mehrere Öffnungen vorgesehen, an die sich eine Vielzahl von Schwingrohren (j) anschließt. In dem offenbarten Ausführungsbeispiel sind 12 Schwingrohre vorgesehen. Sie verlaufen sämtlichst zunächst vertikal nach oben und dann in Form einer Wendel nach unten. Die Anschlüsse der insgesamt 12 Schwingrohre sind im Boden verankert, so daß die Einheit nicht in ihrer Gesamtheit ohne besondere Demontagearbeiten aus dem Kessel herausgehoben werden kann. Die Schwingrohre öffnen sich dann in einen Raum, der wieder außerhalb des Wasser enthaltenden Behälters vorgesehen ist, laufen von dort über einen weiteren Raum, in dem Schalldämpfmittel vorgesehen sind, bis zu einer weiteren Kammer (q) auf der Oberseite des Gerätes. Der Abgasschalldämpfer wird also praktisch gebildet durch zwei Räume in Verbindung mit einem perforierten Rohr, die sich alle außerhalb des Wasserbehälters befinden. Dies ist im Sinne der oben genannten Aufgabenstellung mit folgenden Nachteilen verbunden :

  • a) die im Abgasschalldämpfer entstehende Wärme trägt nicht zur Erhitzung des Wassers bei ; im Gegenteil : die Außenseite des Gerätes wird aufgeheizt.
  • b) es muß für die Schalldämpfung ein gewisser apparativer Aufwand getrieben werden.
  • c) eine einfache Zugänglichkeit der einzelnen Bauteile ist nicht gegeben. Der Aufbau ist kompliziert. Um einzelne Teile zu erreichen, müssen z.T. erhebliche Demontagearbeiten vorgenommen werden.
  • e) Ferner ist die Anordnung der Schwingrohre relativ ungünstig. Es ist notwendig, auf der unteren Seite in Gestalt eines Domes (i) besondere Maßnahmen zu treffen, um das in dem Wasserbehälter eintretende Wasser tatsächlich an den Schwingrohren nach oben zu führen. Der Wirkungsgrad ist dabei nicht optimal, da nicht nach Eintritt des Wassers eine graduell zunehmende Erwärmung stattfindet.
Furthermore, an arrangement has become known from British patent specification 870, 444, in which the air from the surroundings enters a space (k) which is provided outside the boiler filled with water. The air then runs upwards through a perforated tube (m) in a further space (k l ) and then enters from the top of this tube via a further space (a) which is provided above a cover (f), which the Water tank closes at the top. The input sound insulation takes place in a room (k l ) outside the water tank. This room in turn must be soundproofed accordingly. In addition, the assembly is relatively cumbersome when these individual chambers have to be dismantled for maintenance purposes. In the aforementioned British patent, the gas enters an gas reservoir (d) through an opening (e). The gas then enters a mixing chamber (w) via a valve (t) and exits from there via a non-return valve to the combustion chamber (g) below. Several openings are provided in the lower area of the combustion chamber, to which a plurality of oscillating tubes (j) are connected. In the disclosed embodiment, 12 vibrating tubes are provided. They all initially run vertically upwards and then in the form of a spiral downwards. The connections of the total of 12 vibrating tubes are anchored in the floor, so that the unit as a whole cannot be lifted out of the boiler without special dismantling work. The vibrating tubes then open into a space which is again provided outside the water-containing container, run from there via a further space in which sound-absorbing means are provided, to a further chamber (q) on the top of the device. The exhaust muffler is thus practically formed by two rooms in connection with a perforated pipe, which are all outside the water tank. In terms of the above task, this has the following disadvantages:
  • a) the heat generated in the exhaust silencer does not contribute to the heating of the water; on the contrary: the outside of the device is heated up.
  • b) a certain amount of equipment must be driven for sound attenuation.
  • c) There is no easy access to the individual components. The structure is complicated. In order to reach individual parts, considerable dismantling work has to be carried out.
  • e) Furthermore, the arrangement of the vibrating tubes is relatively unfavorable. It is necessary to take special measures on the lower side in the form of a dome (i) in order to actually guide the water entering the water tank upwards on the oscillating tubes. The efficiency is not optimal, since there is no gradually increasing warming after the water has entered.

Zusammenfassend ist festzustellen, daß bei der nach der GB-C-870444 bekannten Anordnung vom Gesichtspunkt der optimalen Abfuhr der entstehenden Wärme in das durchlaufende Wasser her noch erhebliche Nachteile gegeben sind.In summary, it can be stated that in the arrangement known from GB-C-870444, there are still considerable disadvantages from the point of view of optimal dissipation of the heat generated into the water flowing through.

Die eingangs genannte Aufgabe wird gemäß der Erfindung dadurch gelöst, daß der Abgasschalldämpfer zylindrisch ausgebildet und senkrecht stehend neben dem Luftzylinder angeordnet ist und seine Größe etwa gleich der Größe des Luftzylinders ist, daß ferner die Brennkammer oberhalb des Luftzylinders angeordnet ist und das Schwingrohr in horizontaler Ebene von der Brennkammer ausgehend verläuft, wobei das Ende des Schwingrohres gegenüber dieser Ebene etwas zu dem Abgasschalldämpfer hin geneigt ist, und daß die gesamte Schwingfeuereinheit in dem vom Wasser durchströmten Kessel im wesentlichen zwischen der Wasserzuführung am unteren Ende des Kessels und der Wasserabführung am oberen Ende des Kessels angeordnet ist.The object mentioned is achieved according to the invention in that the exhaust silencer is cylindrical and is arranged vertically next to the air cylinder and its size is approximately equal to the size of the air cylinder, that the combustion chamber is arranged above the air cylinder and the oscillating tube in a horizontal plane starting from the combustion chamber, with the end of the oscillating tube being slightly inclined towards the exhaust silencer with respect to this plane, and that the entire oscillating fire unit in the boiler through which the water flows is essentially between the water supply at the lower end of the boiler and the water discharge at the upper end of the Boiler is arranged.

Danach besteht das Wesentliche des Kennzeichens darin, daß der Luftzylinder (mit dem Ansaugschalldämpfer) und der Abgasschalldämpfer nebeneinander senkrecht stehend angeordnet sind, daß die Brennkammer darüber angeordnet ist, daß das Schwingrohr in der über den beiden Zylindern liegenden Ebene verläuft un daß die Gesamte Anordnung praktisch am Deckel « hängt », so daß sie mit ihm aus dem Kessel herausgenommen werden kann. Diese gesamte kompakte Einheit befindet sich ferner im Kessel zwischen dem Wasserzulauf am Boden und dem Ablauf am oberen Ende des Kessels unterhalb des Deckels. Damit wird insgesamt ein äußerst kompakter Aufbau erreicht. Die Erwärmung ist dadurch optimal, daß die stärkste Erhitzung - und zwar durch die gesamte Länge des Schwingrohres und die Brennkammer - kurz vor dem Wasserablauf stattfindet, wobei das Wasser, bevor es diese Stelle erreicht, durch die anderen ebenfalls in den Kessel eintauchenden Baugruppen bereits vorgewärmt worden ist. Auf diese Weise tragen sämtliche in irgendeiner Weise durch das Schwingfeuersystem erwärmten Elemente - einschließlich des Schalldämpfers - zur Erhitzung des Wassers bei. Umgekehrt ergibt sich dadurch, daß all diese Elemente vom Wasser umgeben sind, eine weitere Schalldämpfung. Außerdem sind die Baugruppen auch im Verhältnis zueinander so angeordnet, daß das Wasser nicht an Stellen innerhalb des Kessels seinen Weg nehmen kann, in denen es nicht mit durch das Schwingfeuersystem erwärmten Elementen zwangsläufig in Berührung kommen muß. Der Zusammenbau der zwei Zylinder mit der über diesen liegenden Brennkammer und die Anordnung des Schwingrohres in einer Ebene führen zu einer Art Zwangsführung des Wassers im Sinne optimaler Erhitzung. Dadurch ergibt sich eine optimale Ausnützung des Heizwertes des Brennstoffes ; praktisch lauwarm wird das Abgas abgegeben. Der Wirkungsgrad beträgt über 99 %. Die Erfindung betrifft ferner verschiedene vorteilhafte Weiterbildungen.Thereafter, the essence of the label is that the air cylinder (with Ans eye muffler) and the exhaust muffler are arranged vertically next to each other, that the combustion chamber is arranged above that the oscillating pipe runs in the plane above the two cylinders and that the entire arrangement practically "hangs" on the cover so that it comes out of the boiler with it can be removed. This entire compact unit is also located in the boiler between the water inlet on the bottom and the outlet at the top of the boiler below the lid. An extremely compact construction is thus achieved overall. The heating is optimal in that the strongest heating - namely through the entire length of the vibrating tube and the combustion chamber - takes place shortly before the water drain, the water being preheated by the other assemblies also immersed in the boiler before it reaches this point has been. In this way, all elements heated in any way by the oscillating fire system - including the silencer - contribute to the heating of the water. Conversely, the fact that all these elements are surrounded by water results in further sound absorption. In addition, the assemblies are also arranged in relation to one another in such a way that the water cannot find its way to locations within the boiler where it does not necessarily have to come into contact with elements heated by the oscillating fire system. The assembly of the two cylinders with the combustion chamber lying above them and the arrangement of the vibrating tube in one plane lead to a kind of forced guidance of the water in the sense of optimal heating. This results in an optimal use of the heating value of the fuel; the exhaust gas is discharged practically lukewarm. The efficiency is over 99%. The invention further relates to various advantageous developments.

Eine dieser Weiterbildungen betrifft die Ausbildung des Schwingrohres in besonderer Form, die man als « Bretzel »-Form bezeichnen kann. Bei dieser Anordnung wird der Raum oberhalb der beiden Zylinder besonders effektiv ausgenützt. Dies ist insbesondere dann von Vorteil, wenn - gemäß einer weiteren vorteilhaften Weiterbildung der Erfindung - zwei durch Brennkammer und Schwingrohr gebildete Schwingfeuersysteme in relativ kurzem Abstand übereinander angeordnet sind. Auf diese Weise ist eine relativ einfache Leistungsverdoppelung bei ansonsten gleichen Einzelteilen gegeben Damit werden auch trotz kompakter Bauweise relativ große Krümmungsradien beibehalten, die also vergleichsweise einen niedrigen Strömungswiderstand aufweisen, obwohl damit der Querschnittsbereich, der von der Wasserströmung durchflossen wird, praktisch vollkommen abgedeckt ist. Weitere vorteilhafte Ausbildungen betreffen die Tatsache, daß durch das Innere des Kessels hindurch mit dem auf den Kessel aufgesetzten Deckel lösbar verbundene Rohre geführt sind, die von unten her von einem Gerätekasten die Zu-bzw. Abführung von Gas, Frischluft, Strom, Abgas usw. ermöglichen. Damit wird der evtl. von der Bretzel-Form des Schwingrohres und der Brennkammer nicht vollständig abgeteilte Teil des Querschnittes vollends ausgefüllt, so daß praktisch über den gesamten Durchflußquerschnitt die Erwärmung gleichmäßig wirksam werden kann. Es ist ferner gewährleistet, daß bei dieser Anordnung der Kessel die wärmeerzeugenden Teile mit geringstem Wasserabstand umschließt. Insgesamt tragen die genannten Maßnahmen dazu bei, daß sich ein Warmwasser-Durchlauferhitzer der genannten Art mit sehr viel geringerer Bauhöhe als seither verwirklichen lässt. Er eignet sich daher in dieser Form besonders zum Einbau in oder an Wasser-Wärmespeicher, Standardgeräte für Schwimmbäder, Küchen, als Ergänzungsheizung im Verbund mit Wärmepumpen usw.One of these further developments relates to the design of the vibrating tube in a special form, which can be referred to as the “pretzel” shape. With this arrangement, the space above the two cylinders is used particularly effectively. This is particularly advantageous if - according to a further advantageous development of the invention - two oscillating fire systems formed by the combustion chamber and the oscillating tube are arranged one above the other at a relatively short distance. In this way, a relatively simple doubling of performance is achieved with otherwise identical individual parts. This means that, despite the compact design, relatively large radii of curvature are retained, which therefore have a comparatively low flow resistance, even though the cross-sectional area through which the water flow flows is practically completely covered. Further advantageous developments relate to the fact that pipes which are detachably connected through the inside of the boiler to the cover placed on the boiler are guided, which from underneath the supply and delivery devices. Allow gas, fresh air, electricity, exhaust gas, etc. to be removed. Thus, the part of the cross-section that may not be completely separated from the Bretzel shape of the oscillating tube and the combustion chamber is completely filled, so that the heating can become uniformly effective practically over the entire flow cross-section. It is also ensured that with this arrangement the boiler encloses the heat-generating parts with the smallest water distance. Overall, the measures mentioned contribute to the fact that a hot water heater of the type mentioned can be realized with a much lower overall height than since then. In this form, it is therefore particularly suitable for installation in or on water heat accumulators, standard devices for swimming pools, kitchens, as supplementary heating in combination with heat pumps, etc.

Die leichte Leistungserweiterung ermöglicht es, bei genau gleichen Abmessungen des Kessels Leistungsvarianten von 10000 Kcal/h und 15000 Kcal/h zu realisieren.The slight increase in output makes it possible to implement output variants of 10,000 Kcal / h and 15,000 Kcal / h with exactly the same dimensions of the boiler.

Ausführungsbeispiele der Erfindung werden im folgenden unter Bezugnahme auf die beigefügten Zeichnungen beschrieben. Es stellen dar:

  • Fig. 1 einen Querschnitt durch ein erstes Ausführungsbeispiel ;
  • Fig. 2 einen Schnitt entlang der Linie II-II ;
  • Fig. 3a-h die für eine Montage und Prüfung des ersten Ausführungsbeispiels herzustellenden Teilaggregate ;
  • Fig. 4 eine schematische Darstellung eines Teils eines zweiten Ausführungsbeispiels ;
  • Fig. 5 einen Schnitt entlang der Linie V-V in Fig. 4 ;
  • Fig. 6 einen Schnitt entlang der Linie VI-VI in Fig. 5.
Embodiments of the invention are described below with reference to the accompanying drawings. They represent:
  • 1 shows a cross section through a first embodiment.
  • Figure 2 is a section along the line II-II.
  • 3a-h the sub-assemblies to be produced for assembly and testing of the first exemplary embodiment;
  • Fig. 4 is a schematic representation of part of a second embodiment;
  • 5 shows a section along the line VV in Fig. 4.
  • 6 shows a section along the line VI-VI in FIG. 5.

Der Warmwasser-Durchlauferhitzer nach Fig. 1 wird gebildet durch einen Kessel 1 mit einem Boden 2, der auf einem Gerätekasten 3 aufsitzt. Er ist mit einer Isolierschicht 4 isoliert. Auf der Unterseite des Kessels wird diesem Wasser über eine Wasserzuführung 5 zugeführt. Bei Verwendung des Warmwasser-Durchlauferhitzers im geschlossenen Wasserkreislauf ist dies der sog. Rücklauf. Das Wasser steigt im Kessel nach Erwärmung, wie im folgenden noch beschrieben, nach oben und tritt aus dem Kessel durch die Wasserabführung 6 wieder aus, den sog. Vorlauf. Der Kessel 1 ist oben durch einen Deckel 7 abgedeckt, der auf dem Kessel 1 mit Hilfe von Dichtungen 8 abgedichtet ist. Der Deckel 7 ist mit einer Isolierschicht 4' versehen. An dem Deckel 7 ist nun eine von oben herab in den Kessel 1 eintauchende Schwingfeuer-Tauchsiederanordnung 9 angeordnet. Sie wird gebildet durch : den Luftzylinder 10, in den der Rohrstutzen 11 hineinragt, der über ein elastisches Schlauchstück 12 mit einem im Deckel 7 fest angeordneten weiteren Rohrstutzen 13 verbunden ist, um vom Raum 14 oberhalb des Deckels 7 Luft in den Luftzylinder einzuführen ; einen Ansaugschalldämpfer 15, in den die Luft aus dem Luftzylinder 10 über Eintrittsöffnungen 16 eintritt ; ein Rückschlagventil 17, über das Luft aus dem Ansaugschalldämpfer 15 in das Mischrohr 18 eintritt ; eine Gaszuführung 19, der das als Brennstoff dienende Gas über die Leitung 20 zugeführt wird, und aus der es in das Mischrohr 18 hinein austritt ; eine Zündkerze 21 zur Einleitung des Verbrennungsvorgangs beim Start der Schwingfeuerverbrennung, der die Hochspannung über eine Leitung 22 zugeführt wird ; eine sich an das Mischrohr 18 anschließende Brennkammer 23, in der die Verpuffung des Gas/Luft-Gemisches erfolgt ; das « bretzelförmig ausgebildete (vgl. auch Fig. 2) Schwingrohr 24, dessen Ende 25 in den Abgaszylinder 26 hineinragt ; den Abgaszylinder 26, der zur Schalldämpfung dient und entsprechend ausgekleidet ist; ein Abgasrohr 27, das mit seinem unten offenen Ende kurz oberhalb des Bodens des Abgaszylinders 26 endet und das über ein elastisches Schlauchstück 28 mit einem Rohrstutzen 29, der im Deckel 7 angeordnet ist, verbunden ist ; einen Zusatzschalldämpfer 30, in den das Abgas aus dem oberen Ende des Rohrstutzens 29 austritt und aus dem es über die Verbindungsleitung 31 und die Abgasleitung 32 abgeführt wird.1 is formed by a boiler 1 with a bottom 2, which is seated on a device box 3. It is insulated with an insulating layer 4. On the underside of the boiler, this water is supplied via a water supply 5. When using the hot water instantaneous water heater in the closed water circuit, this is the so-called return. The water rises in the boiler after heating, as described below, and exits the boiler through the water drain 6, the so-called flow. The boiler 1 is covered at the top by a cover 7, which is sealed on the boiler 1 with the aid of seals 8. The cover 7 is provided with an insulating layer 4 '. An oscillating fire immersion heater assembly 9 is now arranged on the cover 7 from above into the boiler 1. It is formed by: the air cylinder 10, into which the pipe socket 11 protrudes, which is connected via an elastic hose piece 12 to a further pipe socket 13 fixedly arranged in the cover 7 in order to introduce air into the air cylinder from the space 14 above the cover 7; an intake silencer 15 into which the air from the air cylinder 10 enters through inlet openings 16; a check valve 17, via which air from the intake silencer 15 enters the mixing tube 18; a gas supply 19, to which the gas serving as fuel is supplied via line 20 and from which it exits into the mixing tube 18; a spark plug 21 for initiating the combustion process at the start of the oscillating fire combustion, to which the high voltage is supplied via a line 22; a combustion chamber 23 adjoining the mixing tube 18, in which the gas / air mixture is deflagrated; the “pretzel-shaped (see also FIG. 2) oscillating tube 24, the end 25 of which projects into the exhaust gas cylinder 26; the exhaust cylinder 26, which is used for sound absorption and is lined accordingly; an exhaust pipe 27, which ends at its bottom open end just above the bottom of the exhaust cylinder 26 and which is connected via an elastic hose piece 28 to a pipe socket 29, which is arranged in the cover 7; an additional silencer 30, into which the exhaust gas exits from the upper end of the pipe socket 29 and from which it is discharged via the connecting line 31 and the exhaust line 32.

Die Verbindung der Verbindungsleitung 31 und der Abgasleitung 32 erfolgt lösbar über eine Schraubverbindung 33. Die Leitungen 20, 22 sind lösbar mit den Leitungen 20', 22' verbunden und diese (nicht gezeigten) Verbindungen befinden sich auch oberhalb des Deckels 7 in dem für die Armaturen und Steuerungen vorgesehenen Raum 14 innerhalb des Deckels 35. Die Schraubverbindung 33 ist derart ausgestaltet, daß sie eine lösbare Verbindung der Abgasleitung 32 mit dem Deckel 7 herstellt, so daß bei Lösen dieser Verbindung der Deckel 7 abgenommen werden kann. Die Abgasleitung 32 ist im Boden 2 des Kessels 1 an der Unterseite fest eingebracht.The connection of the connecting line 31 and the exhaust line 32 is detachable via a screw connection 33. The lines 20, 22 are detachably connected to the lines 20 ', 22' and these connections (not shown) are also located above the cover 7 in the for the Fittings and controls provided space 14 within the cover 35. The screw connection 33 is designed such that it creates a detachable connection of the exhaust pipe 32 with the cover 7, so that the cover 7 can be removed when this connection is released. The exhaust pipe 32 is firmly inserted in the bottom 2 of the boiler 1 on the underside.

Im Boden 2 des Kessels 1 ist ferner ein Steigrohr 36 fest angeordnet, das mit Hilfe einer lösbaren Schraubverbindung 37 mit dem Deckel 7 verbunden ist. Bei Lösen dieser Schraubverbindung kann der Deckel 7 von dem Steigrohr 36 abgenommen werden. Durch das Steigrohr 36 sind die Leitung 20' zur Zuführung des Gases, die mit der Leitung 20 in Verbindung steht, sowie die Leitung 22' zur Zuführung von Strom zur Zündkerze 21, die mit der Leitung 20 in Verbindung steht, zu den Anschlüssen im Gerätekasten 3 hindurchgeführt. Ferner wird durch das Steigrohr 36 Frischluft angesaugt. Dies erfolgt vom Gerätekasten 3 her, in den die Frischluft durch die Schlitze 38 und (nicht gezeigte) Luftfilter staubfrei eintreten kann. Darin liegt ein bedeutender Vorteil gegenüber Systemen mit offener Flamme, bei denen der Brennvorgang bei Vorschaltung eines Filters zusätzliche Luft fördernde Maßnahmen erforderlich machen würde. Damit kann jederzeit genügen Frischluft auf dem Weg über die Schlitze 38, das Innere des Gerätekastens 3 und das Steigrohr 36 in den Raum 14 oberhalb des Deckels 7 und innerhalb des Deckels 35 nachströmen, so daß dann die Luft über die beiden Rohrstutzen 11 und 13 und den Ansaugschalldämpfer 15 zum Schwingfeuersystem, gebildet durch Brennkammer 23 und Schwingrohr 24, angesaugt werden kann. Durch die Rohrstutzen 11 und 13 führt noch eine Leitung 39. Sie dient zur Startluftzufuhr. Der Deckel 7 ist auf dem Kessel 1 mit Schrauben 40 aufgeschraubt. Der Deckel 35 ist aufgesetzt und mit Schrauben 40' an den Stützen 43 festgeschraubt. Nach Lösen der Schrauben 40' und 40 und der Schraubverbindungen 33 und 37 kann der Deckel 7 mit der gesamten Schwingfeuer-Tauchsiederanordnung 9 herausgenommen werden, so daß an der gesamten Anordnung in äußerst einfacher Weise evtl. Wartungsarbeiten o. dgl. vorgenommen werden können. Oberhalb des Deckels 7 im Anschluß an die gezeigten Leitungen und Rohre sind dann die weiteren Armaturen (nicht gezeigt) noch innerhalb des Deckels 35 vorgesehen.In the bottom 2 of the boiler 1, a riser pipe 36 is also fixedly connected to the cover 7 by means of a detachable screw connection 37. When this screw connection is loosened, the cover 7 can be removed from the riser pipe 36. Through the riser pipe 36, the line 20 'for supplying the gas, which is connected to the line 20, and the line 22' for supplying current to the spark plug 21, which is connected to the line 20, are to the connections in the equipment box 3 passed through. Fresh air is also drawn in through the riser pipe 36. This is done from the equipment box 3, into which the fresh air can enter dust-free through the slots 38 and (not shown) air filter. This is a significant advantage over systems with an open flame, in which the combustion process would require additional air-promoting measures if a filter were installed upstream. Thus, fresh air can flow in at any time on the way through the slots 38, the interior of the equipment box 3 and the riser 36 into the space 14 above the cover 7 and inside the cover 35, so that the air then flows through the two pipe sockets 11 and 13 and the intake silencer 15 to the oscillating fire system, formed by the combustion chamber 23 and the oscillating tube 24, can be sucked in. A pipe 39 also runs through the pipe sockets 11 and 13. It serves for the supply of starting air. The cover 7 is screwed onto the boiler 1 with screws 40. The cover 35 is attached and screwed to the supports 43 with screws 40 '. After loosening the screws 40 'and 40 and the screw connections 33 and 37, the cover 7 with the entire oscillating fire immersion heater assembly 9 can be removed, so that any maintenance work or the like can be carried out on the entire assembly in an extremely simple manner. Above the cover 7 following the lines and pipes shown, the further fittings (not shown) are then still provided within the cover 35.

. Die Ausbildung der beschriebenen Aggregate und Teilaggregate an sich ist dem Fachmann bekannt. Insoweit ist u.a. auf die DE-C-Schriften T 922 650, 1 911 192, 1 911 193 zu verweisen ; ferner auf die Veröffentlichungen in der Zeitschrift « Betriebs-Ökonom », Heft 1 und 2 (1970), betreffend « Verfahren der mit Gas betriebenen Schwingfeuer-Geräte », in Heft 5 (1970) S. 96-100, betreffend « Gas-Schwingbrenner des Auslandes », sowie in Heft 8 (1970), S.160-162, betreffend « Der Selbstzündungsvorgang der Schwingfeuer-Geräte im Verlauf der Entwicklung » ; ferner ist hinzuweisen auf die Sonderveröffentlichung « Gasschwingfeuergeräte des Württembergischen Ingenieurvereins im VDI, Vorträge anlässlich der Tagung in Stuttgart am 5.3.1969.. The design of the units and sub-units described is known per se to the person skilled in the art. In this regard, to refer to DE-C documents T 922 650, 1 911 192, 1 911 193; further to the publications in the magazine "Betriebs-Ökonom", issues 1 and 2 (1970), relating to "Processes of gas-powered oscillating fire devices", in issue 5 (1970) pp. 96-100, relating to "gas-oscillating burners" of abroad », as well as in volume 8 (1970), pp. 160-162, regarding« The auto-ignition process of the oscillating fire devices in the course of development »; reference should also be made to the special publication "Gas swing fire devices of the Württemberg engineering association in the VDI, lectures on the occasion of the conference in Stuttgart on 5.3.1969.

Wie ersichtlich, tritt das kalte Wasser durch die Wasserzuführung 5 von unten in den Kessel 1 ein und umströmt den Luftzylinder 10, den Abgaszylinder 26 und ferner die Brennkammer 23 und das Schwingrohr 24. Es trägt damit ganz erheblich zur weiteren Geräuschdämpfung zusätzlich zu den Schalldämpfern bei. Das Wasser wird dann oberhalb des Luftzylinders 10 bzw. des Abgaszylinders 26 durch die Wärmeabgabe des Schwingrohres 24 erhitzt und tritt dann etwas oberhalb dieses Bereiches durch die Wasserabführung 6 aus. Durch die Erwärmung des Wassers im Kessel 1 im oberen Bereich ist ein ständiger Strom des Wassers von unten nach oben infolge der Thermo-Syphon-Wirkung sichergestellt, die zugleich infolge des Austritts im Bereich der stärksten Erwärmung, d.h. im Bereich kurz oberhalb der Erhitzung durch das Schwingrohr 24, zu einem von der Anordnung der Bauteile her optimalen Wirkungsgrad führt. In Verbindung mit den guten Eigenschaften der GasSchwingfeuergeräte können die genannten Wirkungsgrade erreicht werden. Eine VibrationsDämpfung erfolgt durch die Aufhängung von Luftzylinder und Abgaszylinder an den elastischen Schlauchstücken 12 bzw. 28. Eine Schalldämpfung erfolgt durch die Schalldämpfer sowie durch die Anordnung der verschiedenen Leitungen, z.B. 22, 39, 20, 20', 22' in durchströmten Rohren. Eine weitere Vibrationsdämpfung erfolgt dadurch, daß die gesamte Anordnung auf Gummifüßen 41 steht.As can be seen, the cold water enters the boiler 1 from below through the water supply 5 and flows around the air cylinder 10, the exhaust gas cylinder 26 and furthermore the combustion chamber 23 and the oscillating tube 24. It thus makes a considerable contribution to further noise reduction in addition to the mufflers . The water is then heated above the air cylinder 10 or the exhaust gas cylinder 26 by the heat given off by the vibrating tube 24 and then emerges somewhat above this area through the water discharge 6. The heating of the water in the boiler 1 in the upper area ensures a constant flow of water from the bottom to the top as a result of the thermosiphon effect, which at the same time results from the outlet in the area of greatest warming, ie in the area just above the heating by the Vibration tube 24 leads to an optimal efficiency from the arrangement of the components. In conjunction with the good properties of gas vibrating fire devices, the above-mentioned efficiencies can be achieved. Vibration damping takes place through the suspension of the air cylinder and exhaust gas cylinder on the elastic hose sections 12 and 28, respectively. Sound attenuation takes place through the silencers and through the arrangement of the various lines, for example 22, 39, 20, 20 ', 22' in flow-through pipes. A further vibration damping takes place in that the entire arrangement stands on rubber feet 41.

Aus Fig. 2 ist insbesondere die Anordnung des Schwingrohres 24 zu ersehen, Seine Länge ist ja durch die Resonanzbedingungen einer Schwingung von 100-125 Hz vorgegeben ; sie ist daher nicht variabel. Die gezeigte Anordnung löst das Problem, ein Schwingrohr besonders günstig und besonders effektiv auf kleinstem Raum anzuordnen ; bei der gezeigten Anordnung ergeben sich insbesondere größtmögliche Krümmungsradien und damit ein geringer Strömungswiderstand im Innern des Schwingrohres, sowie andererseits ein minimaler Platzbedarf, wobei gleichzeitig die Anordnung an der für den Vorgang der Durchlauferhitzung günstigsten Stelle erfolgen kann.The arrangement of the oscillating tube 24 can be seen in particular from FIG. 2; its length is determined by the resonance conditions of an oscillation of 100-125 Hz; it is therefore not variable. The arrangement shown solves the problem of arranging a vibrating tube particularly cheaply and particularly effectively in the smallest space; in the arrangement shown there are in particular the largest possible radii of curvature and thus a low flow resistance in the interior of the oscillating tube, and on the other hand a minimal space requirement, it being possible for the arrangement to take place at the most convenient point for the process of continuous heating.

Im einzelnen kann man den Verlauf des Schwingrohres 24, bezeichnet man mit A und B die senkrecht im Kessel angeordneten Achsen des Luftzylinders 10 bzw. des Abgaszylinders 26, wie folgt beschreiben : Ausgehend von der Brennkammer 23, die oberhalb des Luftzylinders 10 etwas exzentrisch zur Achse A angeordnet ist, läuft das Schwingrohr 24 zunächst zur Wandung des Kessels 1 derart hin, daß es tangential in einen möglichst nah an der Wandung des Kessels 1 verlaufenden Kreisbogen um die Achse B mündet, etwa an der Stelle C. Von C verläuft das Schwingrohr 24 dann, diesem Kreis um B für etwas mehr als einen Halbkreis folgend, bis zur Stelle D. Daran schließt sich ein gerades Stück an, bis es bei E tangential in einen möglichst nahe des Kessels 1 gedachten Kreis um A mündet ; von dort her folgt das Schwingrohr wieder für etwas mehr als einen Halbkreis der Kreisform um A bis F und verläuft von F aus gerade und abwärts geneigt bis zur Einmündung in den Abgaszylinder 26. Diese Form kann man als « Bretzelform » charakterisieren. Es wären freilich auch andere verschlungene raumsparende Formen zur Realisierung einer bestimmten Länge denkbar, so z.B. die Form einer Acht um die Achsen A, B, durch die man, sofern erforderlich, noch etwas Länge gewinnen könnte, die jedoch wegen der Kreuzungsstelle etwas mehr Platz benötigen würde.In detail, the course of the vibrating tube 24, designated by A and B, the axes of the air cylinder 10 and the exhaust gas cylinder 26 arranged vertically in the boiler can be described as follows: starting from the combustion chamber 23, which is somewhat eccentric to the axis above the air cylinder 10 A is arranged, the vibrating tube 24 initially runs towards the wall of the boiler 1 in such a way that it ends tangentially in an arc around the axis B running as close as possible to the wall of the boiler 1, approximately at point C. The vibrating tube 24 runs from C. then, following this circle around B for a little more than a semicircle, to point D. This is followed by a straight section until it ends tangentially at E in a circle around A that is as close as possible to boiler 1; from there the oscillating pipe follows the circular shape around A to F for a little more than a semicircle and runs straight and downward from F to the junction with the exhaust gas cylinder 26. This shape can be characterized as a «pretzel shape». Of course, other convoluted, space-saving shapes would also be conceivable for realizing a certain length, e.g. the shape of an eight around the axes A, B, through which one could gain some length if necessary, but which would require a little more space because of the crossing point.

An der (in Fig. 2) rechten Seite des Gerätekastens 3 sind die Anschlüsse 20', 5, 22', 32 für Gas, Wasser, Strom und Abgas angeordnet.Connections 20 ', 5, 22', 32 for gas, water, electricity and exhaust gas are arranged on the right-hand side of the device box 3 (in FIG. 2).

Die Fig. 3 a-h dienen zur Erläuterung der besonders günstigen Fertigung und Montage, die sich bei der beschriebenen Anordnung der einzelnen Bauteile und Aggregate ergibt. Zunächst wird der Deckel 35, gem. Fig. 3a, die Schwingfeuer-Tauchsieder-anordnung 9 nach Fig. 3b, der Kessel 1 nach Fig. 3c und der Gerätekasten 3 nach Fig. 3d jeweils getrennt montiert und bereitgestellt. In Ergänzung zu den seither gemachten Erläuterungen ist in diesem Zusammenhang noch auszuführen, daß zur Schwingfeuer-Tauchsiederanordnung 9 auch eine auf dem Deckel 7 mittels Stützen 43 befestigte Armaturenanzeigetafel 44 gehört, die in montiertem Zustand (vgl. auch Fig. 1) durch eine Öffnung 42 im Deckel 35 hindurchragt. Der Vorteil der gezeigten Aggregateaufteilung ist nun der, daß die Schwingfeuer-Tauchsiederanordnung 9 nach Fig. 36 vollständig in diesem noch nicht fertig montierten Zustand auf ihre Funktionsfähigkeit in einem Wasserbehälter 45, wie in Fig. 3e gezeigt, geprüft werden kann. Es müssen nur von dem Prüfplatz her die entsprechenden Anschlüsse für Gas, Spannung, Abgas usw. zur Verfügung gestellt werden. Dann kann die gesamte Schwingfeuer-Tauchsiederanordnung in einem Wasserbehälter 45 eingetaucht und dort vor der Endmontage auf ihre Funktionsfähigkeit vollständig eingestellt und überprüft werden.3 a-h serve to explain the particularly inexpensive manufacture and assembly that results from the described arrangement of the individual components and units. First, the lid 35, according to FIG. 3a, the oscillating fire immersion heater arrangement 9 according to FIG. 3b, the boiler 1 according to FIG. 3c and the device box 3 according to FIG. 3d each separately assembled and provided. In addition to the explanations given since then, it should also be stated in this connection that the oscillating fire immersion heater assembly 9 also includes an instrument panel 44 fastened to the cover 7 by means of supports 43, which in the assembled state (cf. also FIG. 1) through an opening 42 protrudes through the cover 35. The advantage of the aggregate division shown is that the oscillating fire immersion heater arrangement 9 according to FIG. 36 can be tested completely in this not yet fully assembled state for its functionality in a water container 45, as shown in FIG. 3e. The relevant connections for gas, voltage, exhaust gas, etc. must only be made available from the test station. Then the entire oscillating fire immersion heater arrangement can be immersed in a water container 45 and its functionality can be fully adjusted and checked there before final assembly.

Ist diese Prüfung zufriedenstellend verlaufen, so kann die Schwingfeuer-Tauchsiederanordnung 9 nunmehr, wie in Fig. 3f gezeigt, in den Kessel 1 eingesetzt werden, der bereits vorher, wie in Fig. 3g gezeigt, auf dem Gerätekasten 3 montiert worden ist. Dann wird, wie in Fig. 34 gezeigt, der Deckel 35 aufgesetzt. Die gesamte Anordnung zeigt Fig. 3h. Ähnlich einfach verläuft die Wartung ; es braucht lediglich der Deckel 35 abgenommen und dann der Deckel 7 abgeschraubt zu werden. Er kann dann mit der gesamten Schwingfeuer-Tauchsiederanordnung 9 in leicht zugänglicher Weise sofort gewartet oder sogar - bei notwendiger Reparatur - ausgetauscht werden. Auch der Austausch einzelner Aggregate ist auf diese Weise besonders einfach.If this test has gone satisfactorily, the oscillating fire immersion heater assembly 9 can now, as shown in FIG. 3f, be inserted into the boiler 1, which, as shown in FIG. 3g, has already been mounted on the equipment box 3 beforehand. Then, as shown in Fig. 34, the lid 35 is put on. The entire arrangement is shown in Fig. 3h. Maintenance is similarly simple; it is only necessary to remove the cover 35 and then to remove the cover 7. It can then be serviced immediately with the entire oscillating fire immersion heater arrangement 9 in an easily accessible manner or even - if repair is necessary - can be replaced. The exchange of individual units is particularly easy in this way.

Die Fig. 4 und 5 zeigen ein Ausführungsbeispiel mit Steigerung der Wärmeleistung auf den doppelten Wert. Dies erfolgt dadurch, daß - mit ansonsten gleichen Bauteilen - zwei Brennkammern und zwei Schwingrohre angeordnet werden. Wie aus Fig. 4 zu ersehen, sitzen oberhalb des Luftzylinders 110, mit diesem in der aus Fig.6 ersichtlichen Weise verbunden, jeweils etwas exzentrisch zur Achse A, die beiden Brennkammern 123-1 und 123-2. Ihre Anordnung zueinander erfolgt mit einem Höhenunterschied von z.B. 30 mm derart, daß die aus ihnen austretenden Schwingrohre 124-1 und 124-2 bei im wesentlichen gleicher Formgebung direkt übereinander in diesem kurzen Abstand angeordnet werden können. Sie sind an ihren jeweiligen Enden 125-1 une 125-2 mit Hilfe eines Kopplungsstückes 146 schwingungsmäßig miteinander verbunden. Dieses Kopplungsstück dient zur Kopplung der Schwingungen in den beiden Brennkammer/Schwingrohr-Systemen derart, daß die Schwingungen jeweils gegeneinander eine Phasen-verschiebung von 180° haben. Damit wird die Stabilität der Schwingungen beider Schwingungs-systeme in Gegentakt sichergestellt. Gleichzeitig dient das Kopplungsstück 146 der Halterung im Abgaszylinder 126. Sofern also bei dem Ausführungsbeispiel mit nur einem Schwingungssystem die Querschnitte für die Ansaugluft ausreichend groß gewählt worden sind, kann durch die einfache Maßnahme des Anbringung von zwei Schwingungssystemen übereinander mit nur wenig mehr Bauhöle des gesamten Gerätes die doppelte Leistung erzielt werden. Wie aus Fig. 5 ersichtlich, ist nur ein geringes gegenseitiges Versetzen der Brennkammern gegeneinander notwendig, also derart, daß die Brennkammer 123-1 bezüglich der Achse A des Brennkammer 123-2 gegenüberliegend angeordnet ist, um die beiden Schwingrohr-Bretzeln übereinander anzuordnen. Man kann die Querschnitte dann von vorneherein für die Leistung von zwei Schwingungssystemen bemessen und bei Einsatz nur eines Schwingungssystems den Rohrquerschnitt für Frischluft und Abgas durch Einschieben engerer Rohrstücke verringern.4 and 5 show an embodiment with an increase in the heat output to twice the value. This is done in that - with otherwise identical components - two combustion chambers and two oscillating tubes are arranged. As can be seen from FIG. 4, the two combustion chambers 123-1 and 123-2 sit above the air cylinder 110, connected to it in the manner shown in FIG. 6, somewhat eccentrically to the axis A. They are arranged relative to one another with a height difference of, for example, 30 mm in such a way that the vibrating tubes 124-1 and 124-2 emerging from them can be arranged directly above one another at this short distance, with essentially the same shape. They are connected to one another at their respective ends 125-1 and 125-2 in terms of vibrations with the aid of a coupling piece 146. This coupling piece serves to couple the vibrations in the two combustion chamber / vibrating tube systems in such a way that the vibrations each have a phase shift of 180 ° with respect to one another. This ensures the stability of the vibrations of both vibration systems in push-pull. At the same time, the coupling piece 146 is used for mounting in the exhaust gas cylinder 126. If the cross sections for the intake air have been chosen to be sufficiently large in the exemplary embodiment with only one vibration system, the simple measure of mounting two vibration systems one above the other with only a little more construction cavity of the entire device twice the performance can be achieved. As can be seen from Fig. 5, there is only a slight mutual offset of the combustion chambers necessary, that is, in such a way that the combustion chamber 123-1 is arranged opposite one another with respect to the axis A of the combustion chamber 123-2 in order to arrange the two vibrating tube pretzels one above the other. The cross sections can then be dimensioned from the outset for the performance of two vibration systems and, if only one vibration system is used, the pipe cross section for fresh air and exhaust gas can be reduced by inserting narrower pipe sections.

Um zwei hinsichtlich ihrer Schwingungseigenschaften gleiche Schwingungssysteme zu erhalten, muß die Länge des Mischrohres gleich sein, so daß der Ansatz der Mischrohre am Ansaugschalldämpfer verschieden hoch sein muß. Dies ist aus Fig. 6 zu ersehen. Von den Brennkammern 123-1 bzw. 123-2 führen Mischrohre 118-1 bzw. 118-2 zu Rückschlagventilen 117-1 bzw. 117-2. Diese sind nun, wie ersichtlich, in verschiedener Höhe an dem Ansaugschalldämpfer 115 angeordnet, so daß sich gleiche Länge der Mischrohre und damit ebenfalls insoweit gleiche Schwingungsverhältnisse ergeben. Um dies zu gewährleisten, ist das Rückschlagventil 117-1 am Ende eines kurzen Ansatzstutzens 147 befestigt, der sich in den Ansaugschalldämpfer 115 öffnet. In Zusammenhang mit den Fig. 4 bis 6 sind nur diejenigen Dinge beschrieben bzw. erörtert worden, hinsichtlich deren sich diese Anordnung von der anhand von Fig. 1 und 2 beschriebenen unterscheidet. Ansonsten, insbesondere hinsichtlich der Vereinigung der in den Kessel einzusetzenden Bauteile zu der Schwingfeuer-Tauchsiederanordnung, wird auf die Darstellung der Figuren 1 und 2 verwiesen.In order to obtain two vibration systems that are identical in terms of their vibration properties, the length of the mixing tube must be the same, so that the attachment of the mixing tubes to the intake silencer must be of different heights. This can be seen from Fig. 6. Mixing tubes 118-1 and 118-2 lead from the combustion chambers 123-1 and 123-2 to check valves 117-1 and 117-2. As can be seen, these are now arranged at different heights on the intake silencer 115, so that the same length of the mixing tubes and thus likewise the same vibration conditions result. To ensure this, the check valve 117-1 is attached to the end of a short extension 147 that opens into the intake silencer 115. In connection with FIGS. 4 to 6, only those things have been described or discussed with regard to which this arrangement differs from that described with reference to FIGS. 1 and 2. Otherwise, in particular with regard to the combination of the components to be inserted into the boiler to form the oscillating fire immersion heater arrangement, reference is made to the illustration in FIGS. 1 and 2.

Ergänzend ist noch darauf hinzuweisen, daß der Querschnitt des Kessels 1 in Abweichung von der aus Fig. 2 oder Fig. 5 ersichtlichen Form, in der er eben die nebeneinander senkrecht stehenden Zylinder, nämlich den Luftzylinder 10 und den Abgaszylinder 26 umschließt, auch rund ausgebildet sein kann. Dann erhöht sich das Fassungsvermögen des Kessels. Dabei ist die runde Form für die Festigkeit günstiger. Ansonsten kann die Anordnung - bei entsprechender Anpassung des Deckels 7 - dieselbe bleiben. Aus Fertigungs-, Montage- und Wartungsgründen sind der Luftzylinder 10 und der Abgaszylinder 28 zweiteilig ausgebildet.In addition, it should also be pointed out that the cross section of the boiler 1, in deviation from the shape shown in FIG. 2 or FIG. 5, in which it encloses the cylinders standing vertically next to one another, namely the air cylinder 10 and the exhaust gas cylinder 26, is also round can be. Then the capacity of the boiler increases. The round shape is more favorable for strength. Otherwise, the arrangement - with appropriate adaptation of the cover 7 - can remain the same. For manufacturing, assembly and maintenance reasons, the air cylinder 10 and the exhaust cylinder 28 are formed in two parts.

Claims (20)

1. Continuous flow warm water heater, provided with a pulsating combustion unit arranged on a cover and immersing from above into a caldron through which the water flows continuously, said unit comprising a vertically standing air cylinder (10) containing an air intake sound muffler (15), a combustion chamber (23) connected with the air intake sound muffler (15) through a mixing pipe (18), a pulsating pipe (24) connected to the combustion chamber, an exhaust gas muffler (26), into which the combustion pipe (24) ends, and an exhaust gas pipe (27) extending from said exhaust gas muffler, characterized in that the exhaust gas muffler (26) is provided in cylindrical form and arranged vertically standing adjacent to the air cylinder (10), its height being approximately equal to the height of the air cylinder (10) and that further the combustion chamber (23) is arranged above the air cylinder (10), and that the pulsating pipe (24) extends from the combustion chamber (23) in a horizontal plane whereby the end (25) of the pulsating pipe (24) is slightly inclined with respect to this plane in the direction of the exhaust gas muffler (26) and in that the complete pulsating combustion unit (9) is arranged within the caldron (2), through which the water flows, essentially between the water intake (5) at the lower end of the caldron (1) and the water outlet at the upper end of the caldron (2).
2. Continuous flow warm water heater in accordance to claim 1, characterized in that the pulsating pipe (24) extending from the combustion chamber (23) first extends to a point (C), at - which a conveived contour begins, which surrounds the air cylinder (10) and the exhaust gas cylinder (26), and from that point on essentially follows this contour, and finally opens with its end (25) into the exhaust gas cylinder (26).
3. Continuous flow warm water heater in accordance to claim 1 or 2, characterized in that the mixing pipe (18) and the connection between fuel supply (20) and mixing pipe (18) are provided within the air cylinder (10) above the air intake sound muffler (15).
4. Continuous flow warm water heater in accordance to claim 1 or 2, characterized in that within the air cylinder (10) above the air intake muffler (15) a spark plug (21) is provided at the mixing pipe (18) for the starting operation.
5. Continuous flow warm water heater in accordance to claim 1 or 2, characterized in that the air supply (11, 12, 13) to the air cylinder (10), the fuel supply (20) to the mixing pipe (18) and the exhaust gas line (27) are vertically lead from the cover to the air cylinder (10) and to the exhaust gas cylinder (26) respectively.
6. Continuous flow warm water heater in accordance to claim 1, characterized in that the connection between the mixing pipe (18) and the air intake muffler (15), the latter being contained in the air cylinder, is made through a check valve (17).
7. Continuous flow warm water heater in accordance to claim 5, characterized in that the electrical connections (22) to the spark plug (21) for starting operation and the fuel supply (22) are made through the pipe (11, 12, 13) which is the air supply to the air cylinder (10).
8. Continuous flow warm water heater in accordance to claim 1 or one of the following, characterized in that gas is used as fuel.
9. Continuous flow warm water heater in accordance to claim 1 or one of the following, characterized in that the exhaust gas line for leading off the exhaust gas from the exhaust gas cylinder (26) is made by a pipe (27) extending vertically into the same, the lower end of which ends shortly above the bottom of the exhaust gas cylinder (26).
10. Continuous flow warm water heater in accordance to claim 9, characterized in that the pipe (27) which leads off the exhaust gases opens above the cover (7) into an additional sound muffler (30) which is set on the same, and that the lead-off of the exhaust gas and the condensing water from the additional sound muffler (30) is made through a pipe (32) which extends vertically through the cover (7) and the caldron (1).
11. Continuous flow warm water heater in accordance to claim 5, characterized in that the supply of fresh air to the space (14) above the caldron (1) which space is formed by the first mentioned cover (7) and a further cover (35) set upon it, into which space the air supply (11, 12, 13) opens, is provided by a pipe (36) disengageably connected with the cover (7), said pipe- extending vertically through the caldron (1) in proximity to the air cylinder (10) and the exhaust gas cylinder (26).
12. Continuous flow warm water heater in accordance to claim 11, characterized in that the supply and lead off lines for fuel, exhaust gas, fresh air, current and the water which has to be heated is provided in an armature chamber (3) which is positioned below the caldron (1) and that said lines are lead from the armature chamber through pipes (32, 36) extending through the caldron (1) and the cover (7).
13. Continuous flow warm water heater in accordance to claim 11, characterized in that above the cover (7) and connected to the same by means of support studs (43) an armature and indicator means tableau (44) is provided and in that the said further cover (35) has an opening (42) through which the armature and indicator means tableau (44) extends to the outside.
14. Continuous flow warm water heater in accordance to claim 1 or one of the following, characterized in that the pulsating combustion unit (9) which immerses from the cover (7) into the caldron (1) contains a further combustion chamber (123-2) connected by means of a further mixing pipe (118-2) with the intake sound muffler (15) and a further pulsating pipe (124-2) extending from the combustion chamber (123-2), said further pulsating pipe (124-2) extending into the already mentioned exhaust gas cylinder (26).
15. Continuous flow warm water heater in accordance to claim 14, characterized in that the lengths of the mixing pipes (118-1, 118-2) between the combustion chambers (123-1, 123-2) and the check valves (117-1, 117-2) by means of which both mixing pipes are separated, are equal.
16. Continuous flow warm water heater in accordance to claim 15, characterized in that one (117-1) of the both check valves (117-1, 117-2) is connected to the air intake muffler (115) by means of a pipe portion (147), the length of which corresponds to the height difference of both combustion chambers (123-1, 123-2).
17. Continuous flow warm water heater in accordance to claim 14, characterized in that a coupling piece (146) is provided between both pulsating pipes (124-1, 124-2) and that through the same the interior spaces of both pulsating pipes are connected in such a manner that the oscillations build up with a phase difference of 180°.
18. Continuous flow warm water heater in accordance to claim 17, characterized in that the coupling piece (146) is provided at the ends (125-1, 125-2) of the pulsating pipes (124-1, 124-2) and provides for an oscillating space common to both pulsating pipes.
19. Continuous flow warm water heater in accordance to claim 17, characterized ·in that the coupling piece (146) at the same time serves as a holding means for the ends (125-1, 125-2) of the pulsating pipes.
20. Continuous flow warm water heater in accordance to claim 1 or one of the following, characterized in that the caldron (1) is of plastic material.
EP79101903A 1978-06-13 1979-06-12 Continuous-flow heater Expired EP0006215B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79101903T ATE89T1 (en) 1978-06-13 1979-06-12 HOT WATER INSTALLATION HEATER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2825809 1978-06-13
DE19782825809 DE2825809A1 (en) 1978-06-13 1978-06-13 HOT WATER FLOW HEATER

Publications (2)

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EP0006215A1 EP0006215A1 (en) 1980-01-09
EP0006215B1 true EP0006215B1 (en) 1981-06-17

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EP79101903A Expired EP0006215B1 (en) 1978-06-13 1979-06-12 Continuous-flow heater

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US (1) US4259928A (en)
EP (1) EP0006215B1 (en)
JP (1) JPS553594A (en)
AT (1) ATE89T1 (en)
CA (1) CA1123689A (en)
DE (1) DE2825809A1 (en)

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DE3032007A1 (en) * 1978-06-13 1982-04-22 Ludwig Dipl.-Ing. Dr.-Ing. 7000 Stuttgart Huber Continuous flow water heater - has cylinder housing air and combustion cylinders above exhaust gas cylinder and lines through end cover
US4479484A (en) * 1980-12-22 1984-10-30 Arkansas Patents, Inc. Pulsing combustion
US4637792A (en) * 1980-12-22 1987-01-20 Arkansas Patents, Inc. Pulsing combustion
JPS58158405A (en) * 1982-03-15 1983-09-20 Toshiba Corp Muffler for pulsation burner
US4529377A (en) * 1983-02-28 1985-07-16 Georgia Tech Research Institute Pulse combustor apparatus
US4651712A (en) * 1985-10-11 1987-03-24 Arkansas Patents, Inc. Pulsing combustion
JPH01306705A (en) * 1988-06-04 1989-12-11 Paloma Ind Ltd Pulse burner
JPH0656247B2 (en) * 1989-01-11 1994-07-27 パロマ工業株式会社 Pulse combustion type liquid heating device
GB2241052B (en) * 1990-02-01 1994-04-13 Imi Range Ltd Waterheating apparatus
DE102010043821A1 (en) * 2010-11-12 2012-05-16 Hörmann KG Amshausen Locking device for a side sectional door
JP2013044455A (en) * 2011-08-23 2013-03-04 Yoshiyuki Nakata Internal combustion engine
US10048016B2 (en) * 2011-11-15 2018-08-14 Michael Wayne Jordan Dual-chamber heat exchanger
US9341094B2 (en) 2012-08-22 2016-05-17 GM Global Technology Operations LLC Muffler assembly with siphon tube
US11112108B2 (en) 2017-06-05 2021-09-07 Suspended Vortex Innovations Llc Superheated steam boiler and method for operation thereof
WO2020117086A1 (en) * 2018-12-06 2020-06-11 Ильгиз Амирович Ямилев Pulsating combustion device having vibration damping

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US3267985A (en) * 1964-03-12 1966-08-23 John A Kitchen Pulse combustion apparatus

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ATE89T1 (en) 1981-07-15
EP0006215A1 (en) 1980-01-09
CA1123689A (en) 1982-05-18
JPS553594A (en) 1980-01-11
DE2825809A1 (en) 1979-12-20
US4259928A (en) 1981-04-07

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