FR2458766A1 - Central heating boiler nest of tubes - has short and tall rectangular parts, with burner directed downwards into short part - Google Patents

Central heating boiler nest of tubes - has short and tall rectangular parts, with burner directed downwards into short part Download PDF

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Publication number
FR2458766A1
FR2458766A1 FR7914470A FR7914470A FR2458766A1 FR 2458766 A1 FR2458766 A1 FR 2458766A1 FR 7914470 A FR7914470 A FR 7914470A FR 7914470 A FR7914470 A FR 7914470A FR 2458766 A1 FR2458766 A1 FR 2458766A1
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FR
France
Prior art keywords
tube
tubes
plane
vertical
boiler according
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.)
Withdrawn
Application number
FR7914470A
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French (fr)
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SVENSSON ERNST
Original Assignee
SVENSSON ERNST
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Filing date
Publication date
Application filed by SVENSSON ERNST filed Critical SVENSSON ERNST
Priority to FR7914470A priority Critical patent/FR2458766A1/en
Publication of FR2458766A1 publication Critical patent/FR2458766A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/406—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes the tubes forming a membrane wall
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/0266—Particular core assemblies, e.g. having different orientations or having different geometric features

Abstract

The center heating boiler has a nest of tubes arrangement with a taller rectangular part (2) a attached to a shorter rectangular part (1). The shorter part has a helical coil tube (16) inside, with a vertical central axis. The burner flame is directed downwards inside this coil. This coil is of tapered shape, with the largest coil at the top. The burner is mounted on the top (14) of the shorter rectangular part (1). All the vertical faces consist of vertical tubes enclosed by a rectangular frame of larger tubes. The tubes (9) forming the face between the short and long parts terminate above the level of the base to leave a space for hot gases to pass underneath.

Description

Lginvention concerne une chaudière de chauffage central comprenant une enveloppe extérieure enfermant un système de tubes communiquant les uns avec les autres de manière à contenir le fluide à chauffer. Ce système de tubes sgétend sur la majeure partie au moins des surfaces intérieures de l'enve- loppe dans laquelle on utilise un brûleur de chaudière, tel qu'un brdleur à mazout par exemple, pour chauffer le fluide de chauffage
A cet effet, l'invention concerne une chaudière de chauffage central.The invention relates to a central heating boiler comprising an outer casing enclosing a system of tubes communicating with each other so as to contain the fluid to be heated. This tube system extends over at least the major part of the interior surfaces of the enclosure in which a boiler burner is used, such as an oil burner for example, to heat the heating fluid.
To this end, the invention relates to a central heating boiler.

L'invention sera mieux comprise à la lecture de la description détaillée qui suit d'un exemple de réalisation de celle-ci se référant aux dessins ci-joints, dans lesquels
la figure 1 est une vue de face d'une chaudière de chauffage central selon l'invention
la figure 2 est une vue de côté de la chaudière de la figure I
- la figure 3 est une vue en plan de la chaudière de la figure i
la figure 4 est une vue de côté, semblable à celle de la figure 2, mais à plus grande échelle et montrant le système de tubes contenu à l'intérieur de la chaudière
- la figure 5 est une vue en perspective du système de tubes de la figure 4 regardé du côté avant et du côté gauche
- la figure 6 est une vue en perspective du système de tubes de la figure 4 regardé du côté arrière et du cOté gauche ;
- la figure 7 est une vue en perspective du système de tubes de la figure 4 regardé du cOté arrière et du côté droit.The invention will be better understood on reading the following detailed description of an example embodiment thereof, referring to the attached drawings, in which
Figure 1 is a front view of a central heating boiler according to the invention
Figure 2 is a side view of the boiler of Figure I
- Figure 3 is a plan view of the boiler of Figure i
FIG. 4 is a side view, similar to that of FIG. 2, but on a larger scale and showing the system of tubes contained inside the boiler
- Figure 5 is a perspective view of the tube system of Figure 4 viewed from the front side and the left side
- Figure 6 is a perspective view of the tube system of Figure 4 viewed from the rear side and the left side;
- Figure 7 is a perspective view of the tube system of Figure 4 viewed from the rear side and the right side.

La chaudière de chauffage central représentée sur les figures 1 à 3 comprend une enveloppe extérieure se présentant sous la forme d'une partie avant inférieure 1 en forme de boute et d'une partie arrière supérieure 2 également en forme de botte. The central heating boiler shown in Figures 1 to 3 comprises an outer casing in the form of a lower front part 1 in the form of a bottle and an upper rear part 2 also in the form of a boot.

les deux parties 1 et 2 comportent des surfaces latérales paral- lèles planes formant ensemble un bloc d'une seule pièce.the two parts 1 and 2 have parallel parallel side surfaces which together form a single piece block.

Le long d'au moins la majeure partie de la surface intérieure de l'enveloppe est monté un système de tubes de préférence en cuivre Ce système de tubes est représenté sur les figures 5 à 7
Les bords extérieurs du cadre du système de tubes sont constitués par des tubes de diamètre relativement grand, tandis que tous les tubes logés à l'intérieur du cadre sont de diamètre plus petit. Tous ces tubes communiquent entre eux.Along at least most of the interior surface of the envelope is mounted a system of tubes, preferably of copper. This system of tubes is shown in FIGS. 5 to 7.
The outer edges of the frame of the tube system consist of relatively large diameter tubes, while all of the tubes housed inside the frame are of smaller diameter. All these tubes communicate with each other.

Tous les plans de tubes serticaux ont leurs tubes disposés verticalement, le plan de tubes inférieur a ses tubes dirigés de l'avant vers arrière, et le plan de tubes supérieur a ses tubes dirigés transversalement d'un coté à l'autre. All the plans of vertical tubes have their tubes arranged vertically, the lower plane of tubes has its tubes directed from front to rear, and the upper plane of tubes has its tubes directed transversely from one side to the other.

Dans cet exemple on a supprimé des tubes dans le haut de la partie avant 1.In this example we have removed tubes at the top of the front part 1.

Sur les figures 5 à 7, la référence 3 désigne le plan de tubes inférieur et la référence 4 le plan de tubes supérieur de la partie arrière 2 La référence 5 désigne le plan de tubes avant de la partie avant 1. La référence 6 désigne le plan de tubes latéral de gauche, la référence 7 le plan de tubes de droite, et la référence 8 le plan de tubes arrière du système de tubes. In FIGS. 5 to 7, the reference 3 designates the lower tube plane and the reference 4 the upper tube plane of the rear part 2 The reference 5 designates the front tube plane of the front part 1. The reference 6 designates the left side tube plane, reference 7 the right tube plane, and reference 8 the rear tube plane of the tube system.

le plan de tubes avant 9 de la partie arrière 2 arrive à un niveau 1 situé légèrement au-dessus du plan de tubes inférieur 3, de manière à former à cet endroit une ouverture inférieure de foyer (figure 5). Un plan de tubes vertical il (figures 4 et 6) est monté parallèlement entre les plans 8 et 9. the front tube plane 9 of the rear part 2 arrives at a level 1 situated slightly above the lower tube plane 3, so as to form at this location a lower hearth opening (FIG. 5). A vertical tube plane il (FIGS. 4 and 6) is mounted parallel between the planes 8 and 9.

Ce plan de tubes intermédiaire Il est constitué de tubes verticaux partant du plan de tubes inférieur 3 et montant jusqu'à un niveau 12 situé légèrement au-dessous du plan de tubes supérieur 4, de manière à former à cet endroit une ouverture de foyer supérieure (figure 5). Une plaque étanche aux gaz, non représentée, est montée parallèlement au voisinage et derrière le plan des tubes 11, cette plaque arrivant au niveau 12.This intermediate tube plane It consists of vertical tubes starting from the lower tube plane 3 and rising to a level 12 located slightly below the upper tube plane 4, so as to form an upper hearth opening at this location. (figure 5). A gas-tight plate, not shown, is mounted parallel to the vicinity and behind the plane of the tubes 11, this plate arriving at level 12.

Dans la zone supérieure du plan de tubes Il et de la plaque étanche aux gaz, vient se loger horizontalement un réservoir dteau chaude cylindrique 13 (figure 4) communiquant avec le système de tubes et entourant un tube en spirale dans lequel coule de l'eau froide, cette eau froide se trouvant ainsi réchauffée par l'eau chaude contenue dans le réservoir 13. Encore le réservoir 13 et le plan de tubes supérieur 4 est formée une ouverture d'échappement des gaz de foyer qui montent du côté droit du réservoir 13, passent autour de celui-ci, et redescendent du côté gauche du réservoir 13, comme indiqué sur la figure 4. In the upper zone of the plane of tubes II and of the gas-tight plate, is housed horizontally a cylindrical hot water tank 13 (FIG. 4) communicating with the system of tubes and surrounding a spiral tube in which water flows. cold, this cold water thus being heated by the hot water contained in the reservoir 13. Again the reservoir 13 and the upper tube plane 4 is formed an exhaust opening for the combustion gases which rise on the right side of the reservoir 13 , pass around it, and descend to the left side of the reservoir 13, as shown in FIG. 4.

Dans le haut de la partie avant 1 est monté un brQleur dirigé vers le bas, ce brtleur étant par exemple un brûleur à
mazout. Au-dessous de cette partie supérieure avant se trouve une chambre de tubes horizontaux 15, comme indiqué sur la
figure 4. Cependant ces tubes doivent zetre relativement courts
si la chambre doit étire dégagée pour laisser de la place au bradeur à mazout, de sorte que ces tubes peuvent autre supprimés
comme c'est le cas sur les figures 5 à 7.Concentriquement au
gicleur, du bradeur et au-dessous de la partie supérieure 14,
se trouve un tube en spirale 16 monté verticalement et présen
tant la forme d'un tronc de cône à petit sommet dirigé vers le bas. Le tube en spirale 16 communique avec les parties du cadre
supérieure et inférieure respectives 17 et 18 du plan de tubes
avant 5.At the top of the front part 1 is mounted a burner directed downwards, this burner being for example a burner with
fuel oil. Below this upper front part is a chamber of horizontal tubes 15, as indicated on the
figure 4. However these tubes must be relatively short
if the room needs to be unobstructed to make room for the oil dump, so these tubes can further removed
as is the case in Figures 5 to 7.Concentrically to
sprinkler, bradeur and below the upper part 14,
there is a spiral tube 16 mounted vertically and presenting
both the shape of a trunk of cone with small apex directed downwards. The spiral tube 16 communicates with the parts of the frame
upper and lower respectively 17 and 18 of the tube plane
before 5.

En cours de fonctionnement, la flamme du bradeur
à mazout vient balayer le tube en spirale 16 et la majeure
partie de la chaleur est transmise à ce tube en spirale 16 par rayonnement de la flamme. Pour les autres parties du système de tubes la majeure partie de la chaleur est transmise par
convection quand les gaz chauds de combustion viennent balayer les surfaces du système de tubes.Du fait de la chaleur de rayonnement toute la suie se déposant sur le tube en spirale 16 est brillée. Les gaz de combustion produits par le bradeur traversent l'ouverture de foyer inférieure située au-dessous du plan des tubes 9 et montent ensuite entre ce plan de tubes 9 et le plan de tubes Il pour envelopper le réservoir d'eau chaude 13 et redescendre entre la plaque (non représentée) située du cttd droit du plan de tubes 11 sur la figure 4 et le plan de tubes arrière 8, de manière à s'échapper par l'ouverture de foyer 19
située à l'extrémité inférieure du plan de tuhes 8. Deux trous d'évacuation de suie 20 et 21 sont ménagés dans le plan de tubes de gauche 6.During operation, the brader's flame
oil sweeps the spiral tube 16 and the major
part of the heat is transmitted to this spiral tube 16 by radiation of the flame. For the other parts of the tube system most of the heat is transmitted by
convection when the hot gases of combustion sweep the surfaces of the system of tubes. Due to the radiant heat all the soot depositing on the spiral tube 16 is shone. The combustion gases produced by the bradeur pass through the lower hearth opening located below the plane of the tubes 9 and then rise between this plane of tubes 9 and the plane of tubes II to envelop the hot water tank 13 and descend between the plate (not shown) located on the right cttd of the tube plane 11 in FIG. 4 and the rear tube plane 8, so as to escape through the hearth opening 19
located at the lower end of the tile plane 8. Two soot discharge holes 20 and 21 are formed in the plane of left tubes 6.

Les essais effectués sur le bradeur selon 1' inven- tion ont fait apparaître à l'évidence une économie de mazout considérable par rapport à un bradeur classique. Ces essais ont indiqué qu'on pouvait obtenir une réduction de consommation de mazout d'au moins 50 %. The tests carried out on the bradeur according to the invention clearly showed a considerable saving in fuel oil compared to a conventional bradeur. These tests indicated that a reduction in fuel oil consumption of at least 50% could be achieved.

Un prototype destiné à être utilisé dans les villas
ou les grandes maisons, a été réalisé dans les dimensions suivantes : larqeur = 325 mm, profondeur totale = 650 mm dont une profondeur de partie avant l = 325 mm hauteur de la partie avant
1 =400 mm, hauteur de la partie arrière 2 = 800 mm. A prototype intended to be used in villas
or large houses, was made in the following dimensions: width = 325 mm, total depth = 650 mm including a depth of the front part l = 325 mm height of the front part
1 = 400 mm, height of the rear part 2 = 800 mm.

La surface de chauffage était de 397 m2 et le volume d'eau du système de tube était égal à 17 litres.The heating surface was 397 m2 and the volume of water in the tube system was 17 liters.

Pour augmenter encore l'économie de mazout il semble tout à fait probable qu'on puisse réduire encore les dimensions de la chaudière dans le cas d'une maison normale.  To further increase the fuel economy it seems quite likely that the dimensions of the boiler can be further reduced in the case of a normal house.

Claims (6)

REVENDICATIONS 10) Chaudière de chauffage centrals chaudière caractérisée en ce qu'elle comprend une enveloppe extérieure enfermant un système de tubes communiquant entre eux et contenant un fluide à chauffer9 les différentes parties de ce système de tubes se situant le long de la majeure partie au moins des surfaces de parois latérales intérieures de l'enveloppe, un bradeur destiné à chauffer le système de tubes, ce bradeur comportant un gicleur monté de telle manière qu'en fonctionnement la flamme produite soit dirigée essentiellement verticalement vers le bas, et le système de tubes comprenant un tube en spirale monté de façon que son axe longitudinal soit dirigé dans la mime direction que le gicleur du bradeur et que ce tube en spirale entoure la flamme. 10) Central heating boiler boiler characterized in that it comprises an outer envelope enclosing a system of tubes communicating with each other and containing a fluid to be heated9 the different parts of this system of tubes lying along at least the major part of the inner side wall surfaces of the envelope, a bradeur intended to heat the tube system, this bradeur comprising a nozzle mounted in such a way that in operation the flame produced is directed essentially vertically downwards, and the tube system comprising a spiral tube mounted so that its longitudinal axis is directed in the same direction as the nozzle of the bradeur and this spiral tube surrounds the flame. 20) Chaudière selon la revendication 1 caractérisée en ce que le tube en spirale présente la forme d'un tronc de cône dont le petit sommet soit le plus éloigné du brAleur.  20) Boiler according to claim 1 characterized in that the spiral tube has the shape of a truncated cone whose small apex is furthest from the burner. 3 ) Chaudière selon l'une quelconque des revendications 1 et 2pearactdrlsé en ce que l'enveloppe extérieure est formée de manière à comporter une partie avant en forme de bote et une partie arrière également en forme de boite, nais de plus grande hauteur que la partie avant, ces deux parties ayant des faces latérales parallèles planes, la partie avant contenant le tube en spirale et logeant le bradeur dans sa partie supérieure. 3) Boiler according to any one of claims 1 and 2pearactdrlsé in that the outer casing is formed so as to comprise a front part in the form of a box and a rear part also in the form of a box, born of greater height than the front part, these two parts having parallel parallel side faces, the front part containing the spiral tube and housing the bradeur in its upper part. 40) Chaudière selon 1' une quelconque des revendications 1 à 3, caractérisée en ce que le système de tubes est constitué par des plans de tubes muni de tubes horizontaux disposés le long du fond et du sommet de la partie arrière de l'enveloppe, et par des plans de tubes munis de tubes verticaux disposés le long de tous les côtés de l'ezweloppe, des ouvertures étant ména- gées dans certains de ces plans de tubes pour permettre l'évacua- tion des gaz de combustion et le nettoyage de la suie. 40) Boiler according to any one of claims 1 to 3, characterized in that the tube system is constituted by planes of tubes provided with horizontal tubes arranged along the bottom and the top of the rear part of the envelope, and by tube planes provided with vertical tubes arranged along all sides of the ezweloppe, openings being formed in some of these tube planes to allow the evacuation of combustion gases and the cleaning of soot. 50) Chaudière selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le plan de tubes vertical logé à lintérieur de la paroi latérale verticale avant de la partie arrière, se termine au-dessus du plan de tubes inférieur de manière à laisser une ouverture inférieure de passage des gaz de combustion au=dessus de ce plan de tubes inférieur. 50) Boiler according to any one of claims 1 to 4, characterized in that the vertical tube plane housed inside the front vertical side wall of the rear part, ends above the lower tube plane so as to leave a lower combustion gas passage opening above this lower tube plane. 60) Chaudière selon l'une quelconque des revendica- tions 1 à 5, caractérisée en ce qu'entre le plan de tubes vertical situé derrière la face avant de la partie arrière, et un plan de tubes vertical arrière, on introduit un plan de tubes vertical intermédiaire parallèle aux deux plans verticaux ci-dessus et partant du plan de tubes inférieur pour monter jusqu'à un niveau situé au-dessous du plan de tubes supérieur, de manière à former une seconde ouverture de passage des gaz de combustion, ce plan de tubes vertical intermédiaire étant muni, sur son côté faisant face au plan de tubes vertical arrière, d'une plaque montant jusqu'au niveau du plan de tubes intermédiaire vertical. 60) Boiler according to any one of claims 1 to 5, characterized in that between the vertical plane of tubes located behind the front face of the rear part, and a rear vertical plane of tubes, a plane of introduction is introduced. vertical intermediate tube parallel to the two vertical planes above and starting from the lower tube plane to rise to a level located below the upper tube plane, so as to form a second opening for the passage of combustion gases, this intermediate vertical tube plane being provided, on its side facing the rear vertical tube plane, with a plate rising up to the level of the vertical intermediate tube plane. 70) Chaudière selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'on associe à l'extrémité supérieure du plan de tubes vertical intermédiaire, un réservoir d'eau chaude cylindrique horizontal autour duquelles gaz de combustion peuvent circuler après être montés du côté de la plaque où se trouve le plan de tubes vertical int.eNxédiatrp ces gaz de combustion redescendant le long de l'autre côté de la plaque, après avoir circulé autour du réservoir d'eau chaude, pour s 'échapper par une ouverture ménagée dans I' extréaité inférieure du plan de tubes arrière.  70) Boiler according to any one of claims 1 to 6, characterized in that associated with the upper end of the intermediate vertical tube plane, a horizontal cylindrical hot water tank around which combustion gases can circulate after being mounted on the side of the plate where the vertical tube plane is located int.eNxédiatrp these combustion gases descending along the other side of the plate, after having circulated around the hot water tank, to escape by a opening in the lower end of the rear tube plane.
FR7914470A 1979-06-06 1979-06-06 Central heating boiler nest of tubes - has short and tall rectangular parts, with burner directed downwards into short part Withdrawn FR2458766A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7914470A FR2458766A1 (en) 1979-06-06 1979-06-06 Central heating boiler nest of tubes - has short and tall rectangular parts, with burner directed downwards into short part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7914470A FR2458766A1 (en) 1979-06-06 1979-06-06 Central heating boiler nest of tubes - has short and tall rectangular parts, with burner directed downwards into short part

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FR2458766A1 true FR2458766A1 (en) 1981-01-02

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FR7914470A Withdrawn FR2458766A1 (en) 1979-06-06 1979-06-06 Central heating boiler nest of tubes - has short and tall rectangular parts, with burner directed downwards into short part

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505988A3 (en) * 1981-05-15 1982-11-19 Bavioul Albert Central heating installation using super-heated water - has burner heating only part of circulating fluid in by=pass circuit
FR2655133A1 (en) * 1989-11-30 1991-05-31 Stein Industrie FEEDING AND BONDING DEVICE IN BOILER FIREPLACE FOR VERTICAL AND HORIZONTAL TUBES PANELS.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190411147A (en) * 1904-05-14 1905-05-04 William Henry Owen Improvements in or connected with Steam Generators.
US1959788A (en) * 1933-07-28 1934-05-22 Ladice Prager Heater for steam generating systems
GB527504A (en) * 1939-04-04 1940-10-10 August Georg Mueller Central-heating boiler
NL6400236A (en) * 1963-01-17 1964-07-20
BE659039A (en) * 1964-01-29 1965-05-17
FR2091365A5 (en) * 1970-05-08 1972-01-14 Sulzer Ag
US4123995A (en) * 1976-04-01 1978-11-07 Osby, Varme Ab Hot water or steam boiler

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190411147A (en) * 1904-05-14 1905-05-04 William Henry Owen Improvements in or connected with Steam Generators.
US1959788A (en) * 1933-07-28 1934-05-22 Ladice Prager Heater for steam generating systems
GB527504A (en) * 1939-04-04 1940-10-10 August Georg Mueller Central-heating boiler
NL6400236A (en) * 1963-01-17 1964-07-20
BE659039A (en) * 1964-01-29 1965-05-17
FR2091365A5 (en) * 1970-05-08 1972-01-14 Sulzer Ag
US4123995A (en) * 1976-04-01 1978-11-07 Osby, Varme Ab Hot water or steam boiler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505988A3 (en) * 1981-05-15 1982-11-19 Bavioul Albert Central heating installation using super-heated water - has burner heating only part of circulating fluid in by=pass circuit
FR2655133A1 (en) * 1989-11-30 1991-05-31 Stein Industrie FEEDING AND BONDING DEVICE IN BOILER FIREPLACE FOR VERTICAL AND HORIZONTAL TUBES PANELS.
BE1005842A3 (en) * 1989-11-30 1994-02-15 Stein Industrie Feeder and binding in boiler tube fire panel vertical and horizontal.

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