EP2627954A1 - Parallelepiped water heater having longitudinal walls in which holes are formed - Google Patents

Parallelepiped water heater having longitudinal walls in which holes are formed

Info

Publication number
EP2627954A1
EP2627954A1 EP11764792.5A EP11764792A EP2627954A1 EP 2627954 A1 EP2627954 A1 EP 2627954A1 EP 11764792 A EP11764792 A EP 11764792A EP 2627954 A1 EP2627954 A1 EP 2627954A1
Authority
EP
European Patent Office
Prior art keywords
holes
tank
water heater
partitions
heater 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Withdrawn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
EP11764792.5A
Other languages
German (de)
French (fr)
Inventor
Christian Contzen
Paul Laurens
Rodolphe Pelloux-Prayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Waterslim
Original Assignee
Waterslim
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Waterslim filed Critical Waterslim
Publication of EP2627954A1 publication Critical patent/EP2627954A1/en
Withdrawn legal-status Critical Current

Links

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
    • F24H1/18—Water-storage heaters
    • F24H1/181—Construction of the tank
    • 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
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
    • F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • F24H9/0021—Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels

Definitions

  • the present invention relates to a water heater and in particular to such a device, the tank receiving the water to be heated has a generally parallelepiped shape and advantageously parallelepiped rectangle.
  • the water heaters on the market are currently circular in section and their size is a penalizing factor during their installation: they occupy a large space, are unattractive, generate a very high dead volume.
  • Document GB-A-731 769 discloses a water heater of substantially rectangular and flattened section which is understood that one advantage is to facilitate the implementation relative to the cylindrical water heater.
  • this technique is currently not available on the market, which can be explained by the inability of water heaters of known rectangular section to ensure, on the one hand a satisfactory resistance and on the other hand, a performance suitable energy.
  • the present invention aims to overcome all or part of the disadvantages of known techniques on substantially parallelepiped water heaters.
  • the device of the invention associates with a tank heating means preferably placed in a particular manner in a conduit among a series of ducts, as well as partitions with holes between the ducts.
  • the holes are also of selected format.
  • the present invention relates to a water heater comprising a parallelepiped-shaped tank and having an odd number of juxtaposed parallel ducts separated by partitions and preferably in one of which extend in the longitudinal direction of the ducts, heating means, for example resistive, for heating a volume of water in the tank.
  • each partition comprises at least one row of holes aligned in the longitudinal direction of the ducts
  • the total area of the holes is between 10% and 50%, more precisely less than 40%, more precisely of the order of 15% of the area of the partition.
  • the holes operate in a combined way an improvement of the mechanical strength and promotes the longitudinal flow of the water flow.
  • the surface of the partition corresponds to the area of the partition.
  • the percentage of holes refers to the proportion of holes relative to the area of the partition.
  • the surface ratio is preferably based on the surface of the orthogonal projection of the partition in a plane along the width of the partitions.
  • the width of the holes in a direction perpendicular to the longitudinal direction being such that the width occupied by the holes is less than half the width of the partition.
  • each partition has a row of aligned and symmetrical holes along an axis located in the middle of the width of the partition. This symmetrical centered formation is particularly positive on the mechanical resistance.
  • the holes may be regularly spaced in the longitudinal direction, the space between the holes being substantially equivalent to half the width of the partitions. They are also of advantageously identical shape and can be of circular or elliptical section.
  • heating means for example resistive
  • the heating means are located in a lower part of the tank at which for example the partitions delimiting the central duct have no hole. This configuration promotes longitudinal convection.
  • the length of the rows of holes is greater than or equal to two-thirds of the length of the partitions. In combination with the previous option, this forms two zones along the tank: a first zone with the heating of the stream and a second zone with the parts of perforated partitions.
  • the partitions cover the entire length of the tank, in particular to avoid the stress concentrations and therefore the weak areas at the lateral ends of the partitions.
  • the holes of the partitions avoid having high and low ends of the partitions not connected to the periphery of the tank while ensuring the circulation of the water.
  • the partitions are advantageously connected at their upper and lower ends to the tank.
  • the tank advantageously comprises two flanges arranged at the longitudinal ends of the ducts so as to close the volume of the tank.
  • the two flanges can be configured to cooperate with the longitudinal ends of the partitions.
  • the spacing between the resistive heating means and the partitions, and possibly also or alternatively the inner walls of the vessel which surround it does not exceed 17% of the width of the tank 1.
  • 17% of the width of the tank 1. As a for example, of the order of 10% to 15% or about 50 to 55 mm wide for a tank width 1 of 500 mm. It has been found that this spacing makes it possible to optimize the convective effect of longitudinal direction.
  • the proximity of the heating means with respect to the parietal boundaries of the ducts provides a strong convection around the resistive means.
  • This convective intensity in particular has the effect of brewing the water strongly around the (or) resistance (s) and limit the problems of bubbling likely to scale the (or) resistance (s). This result is all the more surprising as one would think that the narrowness of the duct receiving the heating means would generate too much local heating.
  • the ducts are of rectangular section.
  • the tank may also comprise two lateral profiles and at least one set of intermediate profiles connecting the space between the two lateral profiles, the profiles being assembled in pairs and with a longitudinal edge of a partition by a weld bead formed on the face of the profiles opposite to the inside of the tank.
  • the number of sets of intermediate profiles is odd. No welding element is thus made on the side of the tank receiving the water.
  • the weld beads effectively take up the forces transmitted by the partitions.
  • the two flanges are configured additionally or alternatively to cooperate with the ends of the profiles.
  • the two flanges have a continuous groove at their periphery for receiving the ends of the profiles.
  • each partition has a plurality of holes distributed over the width of the partition and over at least two thirds of the length of the partition, preferably over its entire length. According to this possibility, it is preferred that the total area of the holes is between 10 to 50%, more precisely 10 to 40%, more precisely of the order of 15% of the area of the partition.
  • the area of the longitudinal section of the tank is at least 10 times larger than that of the section of the tank in a plane perpendicular to the longitudinal direction.
  • a fluidic connection mouth configured to admit unheated water into the tank and opening in the lower part in the longitudinal direction of a peripheral duct situated at one lateral end of the series of ducts;
  • a fluidic connection mouth configured to discharge heated water out of the tank and opening into the upper part in the longitudinal direction of an intermediate duct situated between the central duct and the peripheral duct situated at one lateral end of the series; ducts without the fluidic connection mouth configured to admit unheated water.
  • Figure 1 is a rear view of the vessel according to a first embodiment of the invention.
  • Figure 2 is a view of a lateral side of the vessel.
  • FIG. 3 is a view of the tank according to section E-E of FIG.
  • FIG. 4 is a view of the tank according to the section F-F of FIG. 2.
  • FIG. 5 is a view of the vessel in section D-D of FIG.
  • Figure 6 is an exploded view of the vessel according to the invention.
  • FIG. 7 is a simulation of the deformation of the tank according to the invention under a pressure of 7 bars.
  • Figure 8 is a representation of the stratification of temperatures in a tank according to the invention.
  • FIG. 9 is a cross-sectional view of the vessel according to a second embodiment.
  • the present invention relates to a water heater comprising a tank 1 receiving water to be heated.
  • the tank 1 and preferably the water heater also have a parallelepipedal shape and advantageously rectangular parallelepiped.
  • the edges of the tank and / or the outer shell of the water heater may be rounded.
  • the tank 1 comprises a first main wall 2, a second main wall 3, two side walls 4 and 5, a bottom wall 6 and an upper wall 7.
  • the vessel 1 is used so that its largest dimension, the length, is oriented vertically.
  • the tank 1 is fixed to a wall such as a wall by fastening means 21 such as hooks.
  • the tank 1 is fixed with its second main wall 3 facing the wall.
  • the tank 1 according to the invention is divided into a plurality of preferably odd numbered conduits.
  • the ducts are parallel to each other and juxtaposed in the direction perpendicular to the longitudinal axis of the tank, the width of the tank 1.
  • the ducts extend in the longitudinal direction of the vessel 1.
  • all or part of the constituents of the tank may be steel, from profiles or sheets of steel, especially stainless.
  • the ducts 8, 9, 10 are separated by partitions 1 1a, b, c, d.
  • One of the ducts 8 receives heating means.
  • the heating means may be of different types such as for example resistive.
  • resistive heating means means at least one resistance intended to heat the water in the tank 1.
  • the resistive heating means 15 are placed in at least one duct 8 and are oriented in the longitudinal direction of the vessel 1.
  • the resistive heating means 15 are placed in a central duct 8, advantageously in a lower portion of the vessel 1.
  • the resistive heating means 15 are arranged in the center of the central duct 8 so as to generate a homogeneous heating in said duct 8.
  • the partitions 11 separating the ducts 8, 9, 10 are preferably flat plies such as steel sheets oriented in the longitudinal direction of the vessel 1 and transversely depending on the thickness of the vessel 1.
  • partitions 1 1 may be considered.
  • partitions 11 of sinusoidal section or slot or omega may be used. That is to say, webs of identical non-planar section in the longitudinal direction.
  • an omega shape is meant a U with two lateral wings 27 extending the sides of the U horizontally outwards.
  • the sides 26 of the U have a minimum length of 12 mm.
  • the base 25 of the U and the two wings 27 are of length substantially equal to one third of the width of the partition 1 1.
  • the partitions 11 are arranged substantially parallel to each other.
  • the partitions 1 1 of the central duct 8 are disposed on either side of the resistive heating means 15 of the partition 1 1 so as to be symmetrical with respect to a longitudinal plane 28 passing through the middle of the central duct 8 or Well by the resistive heating means 15 and oriented transversely depending on the thickness of the vessel 1.
  • This plane separates the vessel 1 into two half-tanks. This shape improves the fatigue resistance of the tank 1 and the heating performance.
  • the partitions 11 comprise holes 20.
  • the holes 20 are arranged on at least two thirds of the length of the partition 1 1 and advantageously on two-thirds of the length of the partition which are not not located next to the resistive heating means 15.
  • the holes 20 are preferably present over the entire length of the partition January 1.
  • the presence of the holes 20 on the partitions 11 allows fluid communication between the ducts 8, 9 without having the need to provide a fluid flow at one or both ends of the ducts by the upper and / or lower ends distant from the periphery of the tank 1.
  • the holes 20 also have the role of improving the resistance of the tank 1 in particular in fatigue. As can be seen in FIG. 7, the holes 20 are zones of elastic deformation. The lightest areas are those where the stresses are highest.
  • the holes are only two-thirds of the length of the partitions 1 1, they are preferably placed on the upper part of the partitions 11 above the resistive heating means 15. There is then obtained a zone without a hole in the heating means resistive 15 with substantial heating of the central duct 8 and an area with holes where there is a fluid flow between the ducts. It may also be provided a variation of the distribution of the holes 20 along the height of the partitions 11. This variation may follow for example a Gaussian function. The holes 20 will be further apart from each other at the ends of the partition 11 than in its central portion.
  • the presence of the holes 20 along the entire length of the partitions 11 makes it possible to reduce the stresses while maintaining a convection in the longitudinal direction causing a stratification of the water as a function of its temperature, as represented in FIG. 8.
  • the very dark zone in the lower part corresponds to the water with the lowest temperature and the dark areas in the central pipe 8 and around the resistive heating means 15 corresponds to the heated water with the highest temperature.
  • stratification of the water is observed as a function of its temperature from the highest in the upper part and in the center of the tank to the coldest in the lower part and in the peripheral ducts 9a, 9b.
  • the unheated water is introduced into the tank 1 by a lower fluid connection 16 and the heated water is captured by an upper fluid connection 17.
  • the inlet of the unheated water at the lower fluidic connection 16 is deflected by the presence of a jet blocking the movement of the unheated water in a vertical component preventing its inadvertent mixing with the heated water.
  • the movement of water in a tank according to the invention is such that unheated water is introduced through the lower fluid connection 16 located in the lower part of the tank 1 and preferably in one of the two peripheral ducts 10a, 10b. This unheated water is distributed in the lower part of the tank 1 in particular through the holes 20.
  • the resistive heating means 15 heat the water in the central duct 8.
  • the combination of a longitudinal position of the resistive heating means 15 and the longitudinal orientation of the ducts 11 generate a local heating allowing the water to rise in temperature while facilitating a longitudinal convection sufficient not to create bubbling and scaling.
  • the heated water rises along the central duct 8 substantially to the upper two-thirds with fluid communication with the confined ducts very limited.
  • the heated water of the central duct 8 disperses to the peripheral ducts 9a, 9b gradually taking a cone-shaped shape.
  • the water thus heated and moving away from the central duct 8 homogenizes the temperature of the surrounding water and thus descends into the tank 1 forming layers of water degressive temperature from top to bottom.
  • the holes 20 are distributed over at least two thirds of the length of the partition and advantageously over the entire length.
  • the holes 20 advantageously represent from 10 to 50%, more precisely from
  • the holes 20 are preferably evenly distributed over the surface of the partitions.
  • the holes 20 are aligned in at least one row oriented in the longitudinal direction of the ducts 11.
  • the holes 20, to play their role of deformable elements, are preferably aligned and symmetrical relative at an axis located in the middle of the width of the partition 1 1.
  • the holes 20 may be of variable dimensions.
  • the holes 20 are circular.
  • the holes 20 have an ellipse shape.
  • the ratio of the major axis and the minor axis of the ellipse may vary along the partition 1 1.
  • the major axis of the holes 20 formed in the central part of the partition is oriented according to the width of the partition 11 while at the high and low ends of the partitions, the major axis is oriented along the longitudinal axis of the partition 11.
  • the ellipse has a major axis oriented according to the width of the partitions, that is to say perpendicular to the longitudinal axis, a length of 70 mm and a small axis oriented along the longitudinal axis of a length of 20 mm.
  • the ellipse has a major axis oriented along the longitudinal axis of a length of 70 mm and a small axis oriented perpendicular to the longitudinal axis of a length of 20 mm.
  • the variation in the ratio of the lengths of the major axis and the minor axis of the ellipse is such that, at no time, the holes are circular.
  • the holes 20 are for example regularly spaced from each other. They are preferably all identical and for example circular with a diameter less than or equal to half the width of the partition 11.
  • the diameter of the holes 20 is of the order of 50 mm and the width of a partition is 116 mm.
  • the partition 1 1 comprises between ten to twenty holes 20, preferably fifteen holes 20, for a wall length of 1672 mm.
  • the space between the holes 20 is substantially equivalent to half the width of the partitions.
  • the space between the holes 20 is measured between the holes I.e. from edge to edge of two successive holes 20 along an axis passing through the center of the holes 20.
  • the holes 20 are aligned in two rows parallel to one another.
  • the holes 20 of the two rows may be aligned according to the width of the partitions or staggered.
  • the two rows are arranged substantially symmetrical to each other with respect to the axis located in the middle of the width of the partition 1 1.
  • the width of each hole is less than or equal to a quarter of the width of the partition 1 1.
  • the tank 1 comprises two lateral sections 12a and 12b and n sets of two intermediate sections.
  • the number of profile sets is a function of the number of conduits.
  • the number n is odd and the number of ducts is odd.
  • At least one set of intermediate profiles is used.
  • the intermediate ducts 10a, 10b are arranged between the lateral sections 12a, 12b so as to connect them and to close the space between them.
  • the profiles are assembled in pairs and with a longitudinal edge of a partition 11 by a weld bead 14 formed on the face of the opposite sections inside the vessel 1. More specifically, the longitudinal edge of the partitions 11 is configured to slightly exceed the thickness of the tank 1.
  • the edges of the lateral profiles 12a, 12b and intermediate 10a, 10b can be applied on the edge of the partitions and the welding is carried out at this location.
  • the lateral sections 12a, 12b form the two lateral ends of the vessel 1.
  • weld seams 14 outside of the tank 1 makes it possible to limit the risks as to the potability of the water.
  • stress concentrations are reduced at the level of the partitions inside the vessel 1. Partitions with a thickness of the order of 1 to 2 mm are sufficient.
  • the welding beads 14 are preferably made over the entire height of the profiles 12, 13 and substantially over the entire height of the partition 11.
  • the tank 1 comprises two flanges forming respectively the upper wall 7 and the lower wall 6. These two flanges are configured to cooperate with the profiles and the partitions 11. Regarding the profiles, according to one configuration, the two flanges comprise at their periphery a groove in which are inserted the edges of the profiles. The flanges are therefore of dimensions slightly greater than those formed by the profiles. The welding of the flanges to the rest of the tank 1 is done by the outside of the tank 1 on the face of the profiles opposite to the inside of the tank 1. In this way, there is still no weld in the volume inside the tank 1 may be in contact with water.
  • the two flanges are of slightly smaller dimensions than the section of the tank 1. In this way, the two flanges cooperate by their edges with the profiles of the tank 1. The two flanges are welded to the profiles by their periphery.
  • the two flanges comprise, according to one possibility, embossings 23 forming projections towards the inside of the vessel 1.
  • the embossings 23 have a role of reinforcement. According to this possibility, it is at the level of these embossings 23 that will come to position the partitions 1 1 by their edge.
  • the embossings 23 may take the form of a groove receiving the lateral ends of the partitions 11 which are then held without the need for welding.
  • the partitions 11 are welded to the inner faces of the flanges, preferably between the embossings 23.
  • the flanges in particular that forming the bottom wall 6, advantageously comprise openings for the passage of lower fluid connections 16 and higher 17.
  • the capture of the heated water is advantageously in the upper part of the tank 1, the opposite of the introduction of unheated water.
  • the upper fluidic connection 17 for the collection of hot water is located in an intermediate duct 10a, 10b closest to the central duct 8 and opposite to the duct comprising the lower fluidic connection 16 for the introduction of non-water. heated.
  • the management of water is carried out in a conventional manner by an inlet and outlet system 19 of the water.
  • the tank 1 is surrounded by insulating material, for example in the form of insulating blocks 22.
  • insulating blocks 22 or other insulating materials applied to the outside of the tank 1 are configured to cooperate with it and in particular with the weld seams 14.
  • the insulating blocks advantageously comprise grooves receiving with or without contact the weld beads 14.
  • the ducts 8, 9, 10 are preferably of the same surface and preferably of the same size and, for example, of a width of the order of 100 mm.
  • the central duct 8 may be larger than the intermediate and peripheral ducts 9 as a function of the resistive heating means 15.
  • resistive heating means 15 It is important to correlate the power of the resistive heating means 15 to the size of the central duct 8 and the volume of the tank 1.
  • resistive heating means with a power of 2 kilowatts can be used to tank volumes ranging from 50 to 100 liters.
  • the ducts 11 are of small section 10 times less than the length of the ducts 1 1 promotes the vertical convection of water and therefore a good distribution of hot water without risk of damaging the resistive heating means 15.
  • the partitions 11 are welded at their longitudinal ends to the upper and lower flanges, preferably by weld beads over the entire width 11.
  • the welds are advantageously cleaned.
  • the lateral sections 12 and the intermediate sections 13 are arranged between two partitions 1 1 and welded by their side edges to the partitions 11 by a weld bead 14 outside the tank 1 and preferably present over the entire height of the profiles.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention relates to a water heater including a vessel (1) having a parallelepiped shape and comprising an odd number of juxtaposed parallel pipes separated by walls (11), wherein a resistive heating means (15) extends in one of said pipes in the longitudinal direction of the pipes and is intended to heat an amount of water in the tank, characterized in that the resistive heating means (15) is provided at the center of a pipe (8) that is centrally arranged relative to the other pipes, wherein each wall (11) comprises at least one row of holes aligned in the longitudinal direction of the pipes, the total surface area of the holes (20) being between 10 and 40 % of the total projected surface area of the wall (11).

Description

"Chauffe-eau parallélépipédique à cloisons longitudinales trouées "  "Parallelepipedic water heater with perforated longitudinal partitions"
La présente invention concerne un chauffe-eau et en particulier un tel dispositif dont la cuve recevant l'eau à chauffer a une forme globalement parallélépipédique et avantageusement parallélépipédique rectangle. The present invention relates to a water heater and in particular to such a device, the tank receiving the water to be heated has a generally parallelepiped shape and advantageously parallelepiped rectangle.
Les chauffe-eau du marché sont actuellement de section circulaire et leur encombrement est un facteur pénalisant lors de leur installation : ils occupent un espace important, sont peu esthétiques, engendrent un volume mort très élevé.  The water heaters on the market are currently circular in section and their size is a penalizing factor during their installation: they occupy a large space, are unattractive, generate a very high dead volume.
On connaît du document GB-A-731 769 un chauffe-eau de section sensiblement rectangulaire et aplatie dont on comprend qu'un avantage est de faciliter l'implantation relativement aux chauffe-eau de forme cylindrique. Pourtant, cette technique n'est actuellement pas offerte sur le marché ce qui peut s'expliquer par l'incapacité des chauffe-eau de section rectangulaire connus à assurer, d'une part une résistance satisfaisante et, d'autre part, un rendement énergétique convenable.  Document GB-A-731 769 discloses a water heater of substantially rectangular and flattened section which is understood that one advantage is to facilitate the implementation relative to the cylindrical water heater. However, this technique is currently not available on the market, which can be explained by the inability of water heaters of known rectangular section to ensure, on the one hand a satisfactory resistance and on the other hand, a performance suitable energy.
La résistance mécanique est un point fondamental de fiabilité et de sécurité du chauffe-eau. L'eau chauffée induit de fortes pressions à l'intérieur de la cuve et on comprend aisément que la section circulaire offre une meilleure répartition des efforts appliqués sur la cuve, notamment en évitant les concentrations de contraintes dans des angles. Dans le même temps, il convient d'assurer un échauffement le plus rapide possible de l'eau et une régulation fine de la température sans pour autant peser sur la consommation d'énergie. Mechanical strength is a fundamental point of reliability and safety of the water heater. The heated water induces high pressures inside the tank and it is easily understood that the circular section provides a better distribution of the forces applied to the tank, in particular by avoiding stress concentrations in corners. At the same time, it is necessary to ensure the fastest possible heating of the water and a fine regulation of the temperature without affecting the energy consumption.
Le chauffe-eau proposé par GB-A-731 769 apparaît incapable de satisfaire les exigences indiquées ci-dessus.  The water heater proposed by GB-A-731 769 appears unable to meet the requirements indicated above.
La présente invention a pour but de remédier en tout ou partie aux inconvénients des techniques connues portant sur des chauffe-eau sensiblement parallélépipédiques. A cet effet, le dispositif de l'invention associe à une cuve des moyens de chauffage préférentiellement placés de manière particulière dans un conduit parmi une série de conduits, ainsi que des cloisons trouées entre les conduits. Les trous sont par ailleurs de format sélectionné.  The present invention aims to overcome all or part of the disadvantages of known techniques on substantially parallelepiped water heaters. For this purpose, the device of the invention associates with a tank heating means preferably placed in a particular manner in a conduit among a series of ducts, as well as partitions with holes between the ducts. The holes are also of selected format.
Alors que le problème de résistance mécanique des cuves conduirait normalement à rigidifier leurs composants, l'invention s'écarte de ce préjugé en utilisant des cloisons trouées pour séparer les conduits. Le résultat, surprenant, est une résistance accrue, particulièrement en fatigue, qui peut s'expliquer par une meilleure capacité de déformation élastique et donc de réponse réversible aux variations de contraintes imposées par les variations de pression dans la cuve. Les trous agissent comme des éléments déformables d'absorption des sollicitations. Dans le même temps, malgré les cloisons trouées selon l'invention, l'expérience montre avec surprise que la convection reste orientée suivant la direction longitudinale des conduits, c'est à dire la verticale dans les conditions usuelles de fonctionnement, au même titre qu'avec des cloisons pleines. Cela est avantageux pour procurer un effet de stratification de l'eau, avec un placement privilégié de l'eau chauffée vers le haut du dispositif où a lieu le captage de l'eau chauffée.  While the problem of mechanical strength of the tanks would normally lead to stiffening their components, the invention departs from this prejudice by using perforated partitions to separate the ducts. The surprising result is an increased resistance, particularly in fatigue, which can be explained by a better capacity of elastic deformation and therefore reversible response to the stress variations imposed by the pressure variations in the tank. The holes act as deformable elements of absorption of the stresses. At the same time, despite the perforated partitions according to the invention, the experiment shows with surprise that the convection remains oriented along the longitudinal direction of the ducts, that is to say the vertical in the usual operating conditions, in the same way that with solid partitions. This is advantageous for providing a stratification effect of the water, with a preferential placement of the heated water towards the top of the device where the collection of the heated water takes place.
D'autres buts et avantages ressortiront de la description qui suit et qui montre, en référence aux dessins, un mode de réalisation préféré mais non limitatif de l'invention.  Other objects and advantages will emerge from the description which follows and which shows, with reference to the drawings, a preferred but non-limiting embodiment of the invention.
Auparavant, on indique que la présente invention concerne un chauffe-eau comprenant une cuve de forme parallélépipédique et comportant un nombre impair de conduits parallèles juxtaposés séparés par des cloisons et préférentiellement dans l'un desquels s'étendent, suivant la direction longitudinale des conduits, des moyens de chauffage, par exemple résistifs, destinés à chauffer un volume d'eau situé dans la cuve.  Previously, it is indicated that the present invention relates to a water heater comprising a parallelepiped-shaped tank and having an odd number of juxtaposed parallel ducts separated by partitions and preferably in one of which extend in the longitudinal direction of the ducts, heating means, for example resistive, for heating a volume of water in the tank.
Des caractéristiques préférentiellement combinées sont :  Preferentially combined characteristics are:
- les moyens de chauffage résistifs sont situés au centre d'un conduit disposé de façon centrale relativement aux autres conduits, - chaque cloison comporte au moins une rangée de trous alignés suivant la direction longitudinale des conduits, the resistive heating means are located in the center of a duct centrally arranged relative to the other ducts, each partition comprises at least one row of holes aligned in the longitudinal direction of the ducts,
- la superficie totale des trous est comprise entre 10 % et 50%, plus précisément inférieure à 40%, encore plus précisément de l'ordre de 15 % de la superficie de la cloison.  - The total area of the holes is between 10% and 50%, more precisely less than 40%, more precisely of the order of 15% of the area of the partition.
Ainsi dimensionnés les trous opèrent de façon combinée une amélioration de la résistance mécanique et favorise l'écoulement longitudinal du flux d'eau.  Thus dimensioned the holes operate in a combined way an improvement of the mechanical strength and promotes the longitudinal flow of the water flow.
Dans le cas de cloisons sensiblement planes, la surface de la cloison correspond à l'aire de la cloison. Le pourcentage de trous s'entend par la proportion de trous relativement à l'aire de la cloison.  In the case of substantially flat partitions, the surface of the partition corresponds to the area of the partition. The percentage of holes refers to the proportion of holes relative to the area of the partition.
Dans le cas de cloisons non planes, le rapport de surface est préférentiellement basé sur la surface de la projection orthogonale de la cloison dans un plan suivant la largeur des cloisons.  In the case of non-planar partitions, the surface ratio is preferably based on the surface of the orthogonal projection of the partition in a plane along the width of the partitions.
Avantageusement, la largeur des trous suivant une direction perpendiculaire à la direction longitudinale étant telle que la largeur occupée par les trous est inférieure à la moitié de la largeur de la cloison.  Advantageously, the width of the holes in a direction perpendicular to the longitudinal direction being such that the width occupied by the holes is less than half the width of the partition.
Suivant une autre possibilité, chaque cloison comporte une rangée de trous alignés et symétriques suivant un axe situé au milieu de la largeur de la cloison. Cette formation symétrique centrée est particulièrement positive sur la résistance mécanique.  According to another possibility, each partition has a row of aligned and symmetrical holes along an axis located in the middle of the width of the partition. This symmetrical centered formation is particularly positive on the mechanical resistance.
Les trous peuvent être régulièrement espacés suivant la direction longitudinale, l'espace entre les trous étant sensiblement équivalent à la moitié de la largeur des cloisons. Ils sont par ailleurs de forme avantageusement identiques et peuvent être de section circulaire ou bien elliptique.  The holes may be regularly spaced in the longitudinal direction, the space between the holes being substantially equivalent to half the width of the partitions. They are also of advantageously identical shape and can be of circular or elliptical section.
Une option est que les moyens de chauffage, par exemple résistifs, sont situés dans une partie inférieure de la cuve au niveau de laquelle par exemple les cloisons délimitant le conduit central ne comportent pas de trou. Cette configuration favorise la convection longitudinale.  One option is that the heating means, for example resistive, are located in a lower part of the tank at which for example the partitions delimiting the central duct have no hole. This configuration promotes longitudinal convection.
Il est avantageux que la longueur des rangées de trous soit supérieure ou égale aux deux tiers de la longueur des cloisons. En combinaison avec l'option précédente, cela forme deux zones le long de la cuve : une première zone avec le chauffage du flux et une deuxième zone avec les parties de cloisons trouées.  It is advantageous if the length of the rows of holes is greater than or equal to two-thirds of the length of the partitions. In combination with the previous option, this forms two zones along the tank: a first zone with the heating of the stream and a second zone with the parts of perforated partitions.
On peut faire en sorte que les cloisons couvrent toute la longueur de la cuve, notamment pour éviter les concentrations de contraintes et donc les zones de faiblesse aux extrémités latérales des cloisons. Les trous des cloisons évitent d'avoir recours à des extrémités hautes et basses des cloisons non raccordées au pourtour de la cuve tout en assurant la circulation de l'eau. Les cloisons sont avantageusement raccordées à leurs extrémités hautes et basses à la cuve. It can be ensured that the partitions cover the entire length of the tank, in particular to avoid the stress concentrations and therefore the weak areas at the lateral ends of the partitions. The holes of the partitions avoid having high and low ends of the partitions not connected to the periphery of the tank while ensuring the circulation of the water. The partitions are advantageously connected at their upper and lower ends to the tank.
La cuve comprend avantageusement deux flasques disposés aux extrémités longitudinales des conduits de sorte à fermer le volume de la cuve.  The tank advantageously comprises two flanges arranged at the longitudinal ends of the ducts so as to close the volume of the tank.
Les deux flasques peuvent être configurés pour coopérer avec les extrémités longitudinales des cloisons.  The two flanges can be configured to cooperate with the longitudinal ends of the partitions.
A titre préféré, l'écartement entre les moyens de chauffage résistifs et les cloisons, et possiblement aussi ou alternativement les parois intérieures de la cuve qui l'entourent, ne dépasse pas 17% de la largeur de la cuve 1. A titre d'exemple, de l'ordre de 10% à 15% soit environ 50 à 55 mm de large pour une largeur de cuve 1 de 500 mm. On a constaté que cet écartement permettait d'optimiser l'effet convectif de direction longitudinale. En particulier, la proximité des moyens de chauffage par rapport aux délimitations pariétales des conduits procure une vive convection autour des moyens résistifs. Cette intensité convective a notamment pour effet de brasser fortement l'eau autour de la (ou les) résistance(s) et lim ite les problèmes de bouillonnement susceptibles d'entartrer la (ou les) résistance(s). Ce résultat est d'autant plus surprenant que l'on penserait que l'étroitesse du conduit recevant les moyens de chauffage engendrerait un trop fort échauffement local.  Preferably, the spacing between the resistive heating means and the partitions, and possibly also or alternatively the inner walls of the vessel which surround it, does not exceed 17% of the width of the tank 1. As a for example, of the order of 10% to 15% or about 50 to 55 mm wide for a tank width 1 of 500 mm. It has been found that this spacing makes it possible to optimize the convective effect of longitudinal direction. In particular, the proximity of the heating means with respect to the parietal boundaries of the ducts provides a strong convection around the resistive means. This convective intensity in particular has the effect of brewing the water strongly around the (or) resistance (s) and limit the problems of bubbling likely to scale the (or) resistance (s). This result is all the more surprising as one would think that the narrowness of the duct receiving the heating means would generate too much local heating.
Suivant une autre possibilité, les conduits sont de section rectangulaire.  According to another possibility, the ducts are of rectangular section.
Pour améliorer encore la résistance mécanique, la cuve peut aussi comporter deux profilés latéraux et au moins un jeu de profilés intermédiaires reliant l'espace entre les deux profilés latéraux, les profilés étant assemblés deux à deux et avec un bord longitudinal d'une cloison par un cordon de soudure formé sur la face des profilés opposée à l'intérieur de la cuve. Préférentiellement, le nombre de jeux de profilés intermédiaires est impair. Aucun élément de soudure n'est ainsi fait du côté de la cuve recevant l'eau. En outre, les cordons de soudure reprennent efficacement les efforts transmis par les cloisons.  To further improve the mechanical strength, the tank may also comprise two lateral profiles and at least one set of intermediate profiles connecting the space between the two lateral profiles, the profiles being assembled in pairs and with a longitudinal edge of a partition by a weld bead formed on the face of the profiles opposite to the inside of the tank. Preferably, the number of sets of intermediate profiles is odd. No welding element is thus made on the side of the tank receiving the water. In addition, the weld beads effectively take up the forces transmitted by the partitions.
Avantageusement, les deux flasques sont configurés de manière additionnelle ou alternative pour coopérer avec les extrémités des profilés. A titre d'exemple, les deux flasques comportent une rainure continue à leur pourtour destinée à recevoir les extrémités des profilés.  Advantageously, the two flanges are configured additionally or alternatively to cooperate with the ends of the profiles. For example, the two flanges have a continuous groove at their periphery for receiving the ends of the profiles.
Suivant une possibilité, chaque cloison comporte une pluralité de trous répartis sur la largeur de la cloison et sur au moins deux tiers de la longueur de la cloison, préférentiellement sur toute sa longueur. Selon cette possibilité, il est préféré que la superficie totale des trous soit comprise entre 10 à 50%, plus précisément de 10 à 40%, plus précisément de l'ordre de 15% de la superficie de la cloison. According to one possibility, each partition has a plurality of holes distributed over the width of the partition and over at least two thirds of the length of the partition, preferably over its entire length. According to this possibility, it is preferred that the total area of the holes is between 10 to 50%, more precisely 10 to 40%, more precisely of the order of 15% of the area of the partition.
D'autres caractéristiques optionnelles de l'invention, pouvant être employées en combinaison ou alternativement sont indiquées ci-après :  Other optional features of the invention that can be used in combination or alternatively are indicated below:
- l'aire de la section longitudinale de la cuve est au moins 10 fois plus grande que celle de la section de la cuve suivant un plan perpendiculaire à la direction longitudinale.  the area of the longitudinal section of the tank is at least 10 times larger than that of the section of the tank in a plane perpendicular to the longitudinal direction.
- Il comprend selon une possibilité :  - It understands according to a possibility:
- une série de cinq conduits,  - a series of five ducts,
- une embouchure de raccordement fluidique configurée pour admettre de l'eau non chauffée dans la cuve et débouchant dans la partie basse suivant la direction longitudinale d'un conduit périphérique situé à une extrémité latérale de la série de conduits,  a fluidic connection mouth configured to admit unheated water into the tank and opening in the lower part in the longitudinal direction of a peripheral duct situated at one lateral end of the series of ducts;
- une embouchure de raccordement fluidique configurée pour évacuer de l'eau chauffée hors de la cuve et débouchant dans la partie haute suivant la direction longitudinale d'un conduit intermédiaire situé entre le conduit central et le conduit périphérique situé à une extrémité latérale de la série de conduits ne comportant pas l'embouchure de raccordement fluidique configurée pour admettre de l'eau non chauffée. a fluidic connection mouth configured to discharge heated water out of the tank and opening into the upper part in the longitudinal direction of an intermediate duct situated between the central duct and the peripheral duct situated at one lateral end of the series; ducts without the fluidic connection mouth configured to admit unheated water.
Les dessins ci-joints sont donnés à titre d'exemples et ne sont pas limitatifs de l'invention. Ils représentent seulement un mode de réalisation de l'invention et permettront de la comprendre aisément. The accompanying drawings are given by way of example and are not limiting of the invention. They represent only one embodiment of the invention and will make it easy to understand.
La figure 1 est une vue de l'arrière de la cuve selon un premier mode de réalisation de l'invention.  Figure 1 is a rear view of the vessel according to a first embodiment of the invention.
La figure 2 est une vue d'un côté latéral de la cuve.  Figure 2 is a view of a lateral side of the vessel.
La figure 3 est une vue de la cuve selon la coupe E-E de la figure 2.  FIG. 3 is a view of the tank according to section E-E of FIG.
La figure 4 est une vue de la cuve selon la coupe F-F de la figure 2.  FIG. 4 is a view of the tank according to the section F-F of FIG. 2.
La figure 5 est une vue de la cuve selon la coupe D-D de la figure 4.  FIG. 5 is a view of the vessel in section D-D of FIG.
La figure 6 est une vue éclatée de la cuve selon l'invention.  Figure 6 is an exploded view of the vessel according to the invention.
La figure 7 est une simulation de la déformation de la cuve selon l'invention sous pression de 7 bars.  FIG. 7 is a simulation of the deformation of the tank according to the invention under a pressure of 7 bars.
La figure 8 est une représentation de la stratification des températures dans une cuve selon l'invention.  Figure 8 is a representation of the stratification of temperatures in a tank according to the invention.
La figure 9 est une vue en coupe transversale de la cuve selon un deuxième mode de réalisation. La présente invention concerne un chauffe-eau comprenant une cuve 1 recevant de l'eau à chauffer. La cuve 1 et avantageusement le chauffe-eau également, ont une forme parallélépipédique et avantageusement parallélépipédique rectangle. Les arêtes de la cuve et/ou de l'enveloppe externe du chauffe-eau peuvent être arrondies. Figure 9 is a cross-sectional view of the vessel according to a second embodiment. The present invention relates to a water heater comprising a tank 1 receiving water to be heated. The tank 1 and preferably the water heater also have a parallelepipedal shape and advantageously rectangular parallelepiped. The edges of the tank and / or the outer shell of the water heater may be rounded.
La cuve 1 comporte une première paroi principale 2, une deuxième paroi principale 3, deux parois latérales 4 et 5, une paroi inférieure 6 et une paroi supérieure 7.  The tank 1 comprises a first main wall 2, a second main wall 3, two side walls 4 and 5, a bottom wall 6 and an upper wall 7.
Préférentiellement, la cuve 1 est utilisée de manière à ce que sa plus grande dimension, la longueur, soit orientée verticalement.  Preferably, the vessel 1 is used so that its largest dimension, the length, is oriented vertically.
La cuve 1 est fixée à une paroi tel un mur par des moyens de fixation 21 tels des crochets. A titre préféré, la cuve 1 est fixée avec sa deuxième paroi principale 3 face au mur.  The tank 1 is fixed to a wall such as a wall by fastening means 21 such as hooks. As a preference, the tank 1 is fixed with its second main wall 3 facing the wall.
La cuve 1 selon l'invention est divisée en une pluralité de conduits préférentiellement en nombre impair. Les conduits sont parallèles les uns les autres et juxtaposés selon la direction perpendiculaire à l'axe longitudinal de la cuve, soit la largeur de la cuve 1. Les conduits s'étendent selon la direction longitudinale de la cuve 1. D'une manière générale, tout ou partie des constituants de la cuve, peut être en acier, à partir de profils ou de tôles d'acier, notamment inoxydable.  The tank 1 according to the invention is divided into a plurality of preferably odd numbered conduits. The ducts are parallel to each other and juxtaposed in the direction perpendicular to the longitudinal axis of the tank, the width of the tank 1. The ducts extend in the longitudinal direction of the vessel 1. In general , all or part of the constituents of the tank, may be steel, from profiles or sheets of steel, especially stainless.
Les conduits 8, 9, 10 sont séparés par des cloisons 1 1a, b, c, d. L'un 8 des conduits reçoit des moyens de chauffage. Les moyens de chauffage peuvent être de différents types tel que par exemple résistifs. On entend par moyens de chauffage résistifs 15 au moins une résistance destinée à chauffer l'eau de la cuve 1. Les moyens de chauffage résistifs 15 sont placés dans au moins un conduit 8 et sont orientés selon la direction longitudinale de la cuve 1.  The ducts 8, 9, 10 are separated by partitions 1 1a, b, c, d. One of the ducts 8 receives heating means. The heating means may be of different types such as for example resistive. The term "resistive heating means" means at least one resistance intended to heat the water in the tank 1. The resistive heating means 15 are placed in at least one duct 8 and are oriented in the longitudinal direction of the vessel 1.
A titre préféré, les moyens de chauffage résistifs 15 sont placés dans un conduit central 8, avantageusement dans une portion inférieure de la cuve 1.  As a preference, the resistive heating means 15 are placed in a central duct 8, advantageously in a lower portion of the vessel 1.
Les moyens de chauffage résistifs 15 sont disposés au centre du conduit central 8 de sorte à générer un échauffement homogène dans ledit conduit 8.  The resistive heating means 15 are arranged in the center of the central duct 8 so as to generate a homogeneous heating in said duct 8.
Les cloisons 11 séparant les conduits 8, 9, 10 sont préférentiellement des nappes planes telles des tôles d'acier orientées selon la direction longitudinale de la cuve 1 et de manière transversale selon l'épaisseur de la cuve 1.  The partitions 11 separating the ducts 8, 9, 10 are preferably flat plies such as steel sheets oriented in the longitudinal direction of the vessel 1 and transversely depending on the thickness of the vessel 1.
Pour améliorer la résistance mécanique de la cuve, il peut être prévu d'allonger la longueur libre des cloisons 11 jouant un rôle de ressort entre la première paroi principale 2 et la deuxième paroi principale 3 de la cuve 1. A cet effet, plusieurs formes de cloisons 1 1 peuvent être envisagées. A titre d'exemple, des cloisons 11 de section sinusoïdale ou en créneau ou bien en oméga peuvent être utilisées. C'est-à-dire des nappes de section non planes identiques suivant la direction longitudinale. On entend par une forme en oméga, un U avec deux ailes latérales 27 prolongeant les côtés du U horizontalement vers l'extérieur. A titre préféré, les côtés 26 du U présentent une longueur minimale de 12 mm. Avantageusement, la base 25 du U ainsi que les deux ailes 27 sont de longueur sensiblement égale à un tiers de la largeur de la cloison 1 1. Les cloisons 11 sont disposées sensiblement parallèles les unes aux autres. Avantageusement, les cloisons 1 1 du conduit central 8 sont disposées de part et d'autre des moyens de chauffage résistifs 15 de la cloison 1 1 de sorte à être symétriques par rapport à un plan longitudinal 28 passant par le milieu du conduit central 8 ou bien par les moyens de chauffage résistifs 15 et orientés de manière transversale selon l'épaisseur de la cuve 1. Ce plan sépare la cuve 1 en deux demis cuves. Cette forme améliore la résistance à la fatigue de la cuve 1 ainsi que les performances de chauffe. To improve the mechanical strength of the tank, it may be provided to lengthen the free length of the partitions 11 acting as a spring between the first main wall 2 and the second main wall 3 of the tank 1. For this purpose, several forms partitions 1 1 may be considered. For example, partitions 11 of sinusoidal section or slot or omega may be used. That is to say, webs of identical non-planar section in the longitudinal direction. By an omega shape is meant a U with two lateral wings 27 extending the sides of the U horizontally outwards. As a preference, the sides 26 of the U have a minimum length of 12 mm. Advantageously, the base 25 of the U and the two wings 27 are of length substantially equal to one third of the width of the partition 1 1. The partitions 11 are arranged substantially parallel to each other. Advantageously, the partitions 1 1 of the central duct 8 are disposed on either side of the resistive heating means 15 of the partition 1 1 so as to be symmetrical with respect to a longitudinal plane 28 passing through the middle of the central duct 8 or Well by the resistive heating means 15 and oriented transversely depending on the thickness of the vessel 1. This plane separates the vessel 1 into two half-tanks. This shape improves the fatigue resistance of the tank 1 and the heating performance.
Selon une caractéristique avantageuse de l'invention, les cloisons 11 comportent des trous 20. Les trous 20 sont disposés sur au moins deux tiers de la longueur de la cloison 1 1 et avantageusement sur les deux tiers de la longueur de la cloison qui ne sont pas situés en regard des moyens de chauffage résistifs 15. Pour améliorer la résistance mécanique, les trous 20 sont préférentiellement présents sur toute la longueur de la cloison 1 1.  According to an advantageous characteristic of the invention, the partitions 11 comprise holes 20. The holes 20 are arranged on at least two thirds of the length of the partition 1 1 and advantageously on two-thirds of the length of the partition which are not not located next to the resistive heating means 15. To improve the mechanical strength, the holes 20 are preferably present over the entire length of the partition January 1.
La présence des trous 20 sur les cloisons 11 permet une communication fluidique entre les conduits 8, 9 10 sans avoir la nécessité de prévoir une circulation fluidique à une ou aux deux extrémités des conduits par les extrémités hautes et/ou basses distantes du pourtour de la cuve 1.  The presence of the holes 20 on the partitions 11 allows fluid communication between the ducts 8, 9 without having the need to provide a fluid flow at one or both ends of the ducts by the upper and / or lower ends distant from the periphery of the tank 1.
La présence de cette circulation fluidique par l'absence de raccord aux extrémités des conduits entraîne des concentrations de contrai ntes en partie supérieure et inférieure de la cuve 1 qui ne sont pas souhaitables.  The presence of this fluid flow by the absence of connection to the ends of the ducts results in control concentrations in the upper and lower part of the tank 1 which are undesirable.
Les trous 20 ont également pour rôle d'améliorer la résistance de la cuve 1 notamment en fatigue. Comme on peut le voir en figure 7, les trous 20 sont des zones de déformation élastique. Les zones les plus claires sont celles où les contraintes sont les plus élevées.  The holes 20 also have the role of improving the resistance of the tank 1 in particular in fatigue. As can be seen in FIG. 7, the holes 20 are zones of elastic deformation. The lightest areas are those where the stresses are highest.
Lorsque les trous sont uniquement aux deux tiers de la longueur des cloisons 1 1 , ils sont préférentiellement placés sur la partie supérieure des cloisons 11 au-dessus des moyens de chauffage résistifs 15. On obtient alors une zone sans trou au niveau des moyens de chauffage résistifs 15 avec un chauffage important du conduit central 8 et une zone avec des trous où il y a une circulation fluidique entre les conduits. Il peut être également prévu une variation de la répartition des trous 20 suivant la hauteur des cloisons 11. Cette variation peut suivre par exemple une fonction gaussienne. Les trous 20 seront plus écartés les uns des autres aux extrémités de la cloison 11 que dans sa partie centrale. When the holes are only two-thirds of the length of the partitions 1 1, they are preferably placed on the upper part of the partitions 11 above the resistive heating means 15. There is then obtained a zone without a hole in the heating means resistive 15 with substantial heating of the central duct 8 and an area with holes where there is a fluid flow between the ducts. It may also be provided a variation of the distribution of the holes 20 along the height of the partitions 11. This variation may follow for example a Gaussian function. The holes 20 will be further apart from each other at the ends of the partition 11 than in its central portion.
La présence des trous 20 sur toute la longueur des cloisons 11 permet de réduire les contraintes tout en conservant une convection selon la direction longitudinale entraînant une stratification de l'eau en fonction de sa température, tel que représenté en figure 8. La zone très foncée en partie basse correspond à l'eau avec une température la plus faible et les zones foncées situées dans la conduite centrale 8 et autour des moyens de chauffage résistifs 15 correspond à l'eau chauffée avec la température la plus élevée. Entre les deux, on observe une stratification de l'eau en fonction de sa température de la plus élevée en partie haute et au centre de la cuve à la plus froide en partie basse et dans les conduits périphériques 9a, 9b. Classiquement, l'eau non chauffée est introduite dans la cuve 1 par un raccordement fluidique inférieur 16 et l'eau chauffée est captée par un raccordement fluidique supérieur 17. L'entrée de l'eau non chauffée au niveau du raccordement fluidique inférieur 16 est déviée par la présence d'un brise-jet bloquant le déplacement de l'eau non chauffée suivant une composante verticale empêchant son mélange intempestif avec l'eau chauffée.  The presence of the holes 20 along the entire length of the partitions 11 makes it possible to reduce the stresses while maintaining a convection in the longitudinal direction causing a stratification of the water as a function of its temperature, as represented in FIG. 8. The very dark zone in the lower part corresponds to the water with the lowest temperature and the dark areas in the central pipe 8 and around the resistive heating means 15 corresponds to the heated water with the highest temperature. Between the two, stratification of the water is observed as a function of its temperature from the highest in the upper part and in the center of the tank to the coldest in the lower part and in the peripheral ducts 9a, 9b. Conventionally, the unheated water is introduced into the tank 1 by a lower fluid connection 16 and the heated water is captured by an upper fluid connection 17. The inlet of the unheated water at the lower fluidic connection 16 is deflected by the presence of a jet blocking the movement of the unheated water in a vertical component preventing its inadvertent mixing with the heated water.
Le mouvement de l'eau dans une cuve selon l'invention est tel que l'eau non chauffée est introduite par le raccordement fluidique inférieur 16 situé en partie inférieure de la cuve 1 et préférentiellement dans un des deux conduits périphériques 10a, 10b. Cette eau non chauffée se répartit dans la partie basse de la cuve 1 notamment en passant par les trous 20.  The movement of water in a tank according to the invention is such that unheated water is introduced through the lower fluid connection 16 located in the lower part of the tank 1 and preferably in one of the two peripheral ducts 10a, 10b. This unheated water is distributed in the lower part of the tank 1 in particular through the holes 20.
Les moyens de chauffage résistifs 15 chauffent l'eau dans le conduit central 8. The resistive heating means 15 heat the water in the central duct 8.
La combinaison d'une position longitudinale des moyens de chauffage résistifs 15 et l'orientation longitudinale des conduits 11 génèrent un échauffement local permettant à l'eau de monter en température tout en facilitant une convection longitudinale suffisante pour ne pas créer de bouillonnement et d'entartrage. L'eau chauffée s'élève le long du conduit central 8 sensiblement jusqu'aux deux tiers supérieurs avec une communication fluidique avec les conduits accolés très limitée. Dans les deux tiers supérieurs de la cuve 1 , l'eau chauffée du conduit central 8 se disperse vers les conduits périphériques 9a, 9b progressivement en prenant une forme de cône. L'eau ainsi chauffée et s'éloignant du conduit central 8 homogénéise la température de l'eau alentour et donc redescend dans la cuve 1 formant des strates d'eau de température dégressive de haut en bas. Avantageusement, il a été remarqué la formation de deux boucles de circulation de l'eau, une droite, une gauche, de part et d'autre du conduit central 8 recevant les moyens de chauffage résistifs 15. The combination of a longitudinal position of the resistive heating means 15 and the longitudinal orientation of the ducts 11 generate a local heating allowing the water to rise in temperature while facilitating a longitudinal convection sufficient not to create bubbling and scaling. The heated water rises along the central duct 8 substantially to the upper two-thirds with fluid communication with the confined ducts very limited. In the upper two-thirds of the tank 1, the heated water of the central duct 8 disperses to the peripheral ducts 9a, 9b gradually taking a cone-shaped shape. The water thus heated and moving away from the central duct 8 homogenizes the temperature of the surrounding water and thus descends into the tank 1 forming layers of water degressive temperature from top to bottom. Advantageously, it was noticed the formation of two water circulation loops, a line, a left, on either side of the central duct 8 receiving the resistive heating means 15.
Selon une première possibilité, les trous 20 sont répartis sur au moins deux tiers de la longueur de la cloison et avantageusement sur toute la longueur.  According to a first possibility, the holes 20 are distributed over at least two thirds of the length of the partition and advantageously over the entire length.
Les trous 20 représentent avantageusement de 10 à 50%, plus_précisément de The holes 20 advantageously represent from 10 to 50%, more precisely from
10 à 40%, préférentiellement 15% de la superficie de la cloison 11. Les trous 20 sont préférentiellement régulièrement répartis sur la surface des cloisons. 10 to 40%, preferably 15% of the area of the partition 11. The holes 20 are preferably evenly distributed over the surface of the partitions.
Selon une deuxième possibilité préférée et représentée sur les figures, les trous 20 sont alignés suivant au moins une rangée orientée selon la direction longitudinale des conduits 11. Les trous 20, pour jouer leur rôle d'éléments déformables, sont préférentiellement alignés et symétriques par rapport à un axe situé au milieu de la largeur de la cloison 1 1. Les trous 20 peuvent être de dimensions variables.  According to a second preferred possibility and shown in the figures, the holes 20 are aligned in at least one row oriented in the longitudinal direction of the ducts 11. The holes 20, to play their role of deformable elements, are preferably aligned and symmetrical relative at an axis located in the middle of the width of the partition 1 1. The holes 20 may be of variable dimensions.
Selon une possibilité, les trous 20 sont circulaires.  According to one possibility, the holes 20 are circular.
Selon une autre possibilité, les trous 20 ont une forme en ellipse. Avantageusement, le rapport du grand axe et du petit axe de l'ellipse peut varier le long de la cloison 1 1. A titre d'exemple, le grand axe des trous 20 formés dans la partie centrale de la cloison est orientée selon la largeur de la cloison 11 tandis qu'aux extrémités hautes et basses des cloisons, le grand axe est orienté selon l'axe longitudinal de la cloison 11. Par exemple pour une largeur de 1 16 mm, au centre, l'ellipse a un grand axe orienté selon la largeur des cloisons, c'est-à-dire perpendiculaire à l'axe longitudinal, d'une longueur de 70 mm et un petit axe orienté selon l'axe longitudinal d'une longueur de 20 mm. Aux extrémités longitudinales de la cloison 11 , l'ellipse a un grand axe orienté selon l'axe longitudinal d'une longueur de 70 mm et un petit axe orienté perpendiculairement à l'axe longitudinal d'une longueur de 20 mm.  According to another possibility, the holes 20 have an ellipse shape. Advantageously, the ratio of the major axis and the minor axis of the ellipse may vary along the partition 1 1. For example, the major axis of the holes 20 formed in the central part of the partition is oriented according to the width of the partition 11 while at the high and low ends of the partitions, the major axis is oriented along the longitudinal axis of the partition 11. For example for a width of 1 16 mm, in the center, the ellipse has a major axis oriented according to the width of the partitions, that is to say perpendicular to the longitudinal axis, a length of 70 mm and a small axis oriented along the longitudinal axis of a length of 20 mm. At the longitudinal ends of the partition 11, the ellipse has a major axis oriented along the longitudinal axis of a length of 70 mm and a small axis oriented perpendicular to the longitudinal axis of a length of 20 mm.
La variation du rapport des longueurs du grand axe et du petit axe de l'ellipse est telle que, à aucun moment, les trous sont circulaires.  The variation in the ratio of the lengths of the major axis and the minor axis of the ellipse is such that, at no time, the holes are circular.
Les trous 20 sont par exemple régulièrement espacés les uns des autres. Ils sont préférentiellement tous identiques et par exemple circulaires d'un diamètre inférieur ou égale à la demi-largeur de la cloison 11. A titre d'exemple, le diamètre des trous 20 est de l'ordre de 50 mm et la largeur d'une cloison est de 116 mm. Selon une possibilité, la cloison 1 1 comprend entre dix à vingt trous 20, préférentiellement quinze trous 20, pour une longueur de cloison de 1672 mm.  The holes 20 are for example regularly spaced from each other. They are preferably all identical and for example circular with a diameter less than or equal to half the width of the partition 11. For example, the diameter of the holes 20 is of the order of 50 mm and the width of a partition is 116 mm. According to one possibility, the partition 1 1 comprises between ten to twenty holes 20, preferably fifteen holes 20, for a wall length of 1672 mm.
Préférentiellement, l'espace entre les trous 20 est sensiblement équivalent à la moitié de la largeur des cloisons. L'espace entre les trous 20 est mesuré entre les trous 20 c'est-à-dire de bord à bord de deux trous 20 successifs suivant un axe passant par le centre des trous 20. Preferably, the space between the holes 20 is substantially equivalent to half the width of the partitions. The space between the holes 20 is measured between the holes I.e. from edge to edge of two successive holes 20 along an axis passing through the center of the holes 20.
Selon encore une autre possibilité, les trous 20 sont alignés suivant deux rangées parallèles l'une à l'autre. Les trous 20 des deux rangées peuvent être alignées suivant la largeur des cloisons ou en quinconce. Selon cette possibilité, les deux rangées sont disposées sensiblement symétriques l'une à l'autre par rapport à l'axe situé au milieu de la largeur de la cloison 1 1. La largeur de chaque trou est inférieure ou égale à un quart de la largeur de la cloison 1 1.  According to another possibility, the holes 20 are aligned in two rows parallel to one another. The holes 20 of the two rows may be aligned according to the width of the partitions or staggered. According to this possibility, the two rows are arranged substantially symmetrical to each other with respect to the axis located in the middle of the width of the partition 1 1. The width of each hole is less than or equal to a quarter of the width of the partition 1 1.
Selon un mode de réalisation apportant une résistance mécanique accrue à la cuve 1 , celle-ci comporte deux profilés latéraux 12 a et 12b et n jeux de deux profilés intermédiaires. Le nombre de jeux de profilés est fonction du nombre de conduits. Préférentiellement, le nombre n est impair et le nombre de conduits est impair.  According to one embodiment providing increased mechanical resistance to the tank 1, it comprises two lateral sections 12a and 12b and n sets of two intermediate sections. The number of profile sets is a function of the number of conduits. Preferably, the number n is odd and the number of ducts is odd.
Préférentiellement, au moins un jeu de profilés intermédiaires est utilisé. Sur les figures, trois jeux sont utilisés. Les conduits intermédiaires 10a, 10b sont disposés entre les profilés latéraux 12a, 12b de sorte à les relier et à fermer l'espace entre eux. Les profilés sont assemblés deux à deux et avec un bord longitudinal d'une cloison 11 par un cordon de soudure 14 formé sur la face des profilés opposés à l'intérieur de la cuve 1. Plus précisément, le bord longitudinal des cloisons 11 est configuré pour dépasser légèrement de l'épaisseur de la cuve 1 . Les tranches des profilés latéraux 12a, 12b et intermédiaires 10a, 10b peuvent s'appliquer sur le bord des cloisons et la soudure est réalisée à cet endroit. Les profilés latéraux 12a, 12b forment les deux extrémités latérales de la cuve 1.  Preferably, at least one set of intermediate profiles is used. In the figures, three games are used. The intermediate ducts 10a, 10b are arranged between the lateral sections 12a, 12b so as to connect them and to close the space between them. The profiles are assembled in pairs and with a longitudinal edge of a partition 11 by a weld bead 14 formed on the face of the opposite sections inside the vessel 1. More specifically, the longitudinal edge of the partitions 11 is configured to slightly exceed the thickness of the tank 1. The edges of the lateral profiles 12a, 12b and intermediate 10a, 10b can be applied on the edge of the partitions and the welding is carried out at this location. The lateral sections 12a, 12b form the two lateral ends of the vessel 1.
La formation des cordons de soudure 14 à l'extérieur de la cuve 1 permet de limiter les risques quant à la potabilité de l'eau. De plus, les concentrations de contraintes sont réduites au niveau des cloisons à l'intérieur de la cuve 1. Des cloisons d'épaisseur de l'ordre de 1 à 2 mm sont suffisantes.  The formation of weld seams 14 outside of the tank 1 makes it possible to limit the risks as to the potability of the water. In addition, the stress concentrations are reduced at the level of the partitions inside the vessel 1. Partitions with a thickness of the order of 1 to 2 mm are sufficient.
En outre, l'utilisation d'éléments identiques permet de concevoir des cuves 1 de dimensions diverses avec toujours les mêmes éléments de base. La modularité de la cuve 1 est particulièrement avantageuse.  In addition, the use of identical elements makes it possible to design tanks 1 of various dimensions with always the same basic elements. The modularity of the tank 1 is particularly advantageous.
Les cordons de soudure 14 sont préférentiellement réalisés sur toute la hauteur des profilés 12, 13 et sensiblement sur toute la hauteur de la cloison 11.  The welding beads 14 are preferably made over the entire height of the profiles 12, 13 and substantially over the entire height of the partition 11.
En partie supérieure et en partie inférieure de la cuve 1 , c'est-à-dire aux extrémités longitudinales des conduits 8, 9, 10, la cuve 1 comporte deux flasques formant respectivement la paroi supérieure 7 et la paroi inférieure 6. Ces deux flasques sont configurés pour coopérer avec les profilés et les cloisons 11. En ce qui concerne les profilés, selon une configuration, les deux flasques comprennent à leur pourtour une rainure dans laquelle viennent s'insérer les bords des profilés. Les flasques sont donc de dimensions légèrement supérieures à celles formées par les profilés. La soudure des flasques au reste de la cuve 1 se fait par l'extérieur de la cuve 1 sur la face des profilés opposée à l'intérieur de la cuve 1. De la sorte, il n'y a toujours aucune soudure dans le volume intérieur de la cuve 1 risquant d'être en contact avec l'eau. In the upper part and in the lower part of the tank 1, that is to say at the longitudinal ends of the ducts 8, 9, 10, the tank 1 comprises two flanges forming respectively the upper wall 7 and the lower wall 6. These two flanges are configured to cooperate with the profiles and the partitions 11. Regarding the profiles, according to one configuration, the two flanges comprise at their periphery a groove in which are inserted the edges of the profiles. The flanges are therefore of dimensions slightly greater than those formed by the profiles. The welding of the flanges to the rest of the tank 1 is done by the outside of the tank 1 on the face of the profiles opposite to the inside of the tank 1. In this way, there is still no weld in the volume inside the tank 1 may be in contact with water.
Selon une autre configuration préférée, les deux flasques sont de dimensions légèrement inférieures à la section de la cuve 1. De cette manière, les deux flasques coopèrent par leurs bords avec les profilés de la cuve 1 . Les deux flasques sont soudés aux profilés par leur périphérie.  According to another preferred configuration, the two flanges are of slightly smaller dimensions than the section of the tank 1. In this way, the two flanges cooperate by their edges with the profiles of the tank 1. The two flanges are welded to the profiles by their periphery.
Les deux flasques comprennent selon une possibilité, des embossages 23 formant des saillies vers l'intérieur de la cuve 1. Les embossages 23 ont un rôle de renfort. Selon cette possibilité, c'est au niveau de ces embossages 23 que vont venir se positionner les cloisons 1 1 , par leur tranche.  The two flanges comprise, according to one possibility, embossings 23 forming projections towards the inside of the vessel 1. The embossings 23 have a role of reinforcement. According to this possibility, it is at the level of these embossings 23 that will come to position the partitions 1 1 by their edge.
Selon une variante, les embossages 23 peuvent prendre la forme d'une rainure recevant les extrémités latérales des cloisons 1 1 qui sont alors maintenues sans nécessiter de soudure.  According to one variant, the embossings 23 may take the form of a groove receiving the lateral ends of the partitions 11 which are then held without the need for welding.
De manière préférée, les cloisons 11 sont soudées sur les faces intérieures des flasques, préférentiellement entre les embossages 23.  Preferably, the partitions 11 are welded to the inner faces of the flanges, preferably between the embossings 23.
Il est bien compris que les flasques, notamment celui formant la paroi inférieure 6, comprennent avantageusement des ouvertures pour le passage de raccordements fluidiques inférieur 16 et supérieur 17.  It is well understood that the flanges, in particular that forming the bottom wall 6, advantageously comprise openings for the passage of lower fluid connections 16 and higher 17.
Le captage de l'eau chauffée se fait avantageusement en partie supérieure de la cuve 1 , à l'opposé de l'introduction de l'eau non chauffée. Préférentiellement, le raccordement fluidique supérieur 17 destiné au captage de l'eau chaude est situé dans un conduit intermédiaire 10a, 10b le plus proche du conduit central 8 et opposé au conduit comprenant le raccordement fluidique inférieur 16 pour l'introduction de l'eau non chauffée.  The capture of the heated water is advantageously in the upper part of the tank 1, the opposite of the introduction of unheated water. Preferably, the upper fluidic connection 17 for the collection of hot water is located in an intermediate duct 10a, 10b closest to the central duct 8 and opposite to the duct comprising the lower fluidic connection 16 for the introduction of non-water. heated.
La gestion de l'eau est réalisée de manière classique par un système d'entrée et sortie 19 de l'eau.  The management of water is carried out in a conventional manner by an inlet and outlet system 19 of the water.
De même, la cuve 1 est entourée de matériau isolant par exemple sous forme de blocs isolants 22. Il est à noter que les blocs isolants 22 ou autres matériaux isolants appliqués à l'extérieur de la cuve 1 sont configurés pour coopérer avec celle-ci et notamment avec les cordons de soudure 14. A cet effet, les blocs isolants comprennent avantageusement des rainures recevant avec ou sans contact les cordons de soudure 14. Similarly, the tank 1 is surrounded by insulating material, for example in the form of insulating blocks 22. It should be noted that the insulating blocks 22 or other insulating materials applied to the outside of the tank 1 are configured to cooperate with it and in particular with the weld seams 14. For this purpose, the insulating blocks advantageously comprise grooves receiving with or without contact the weld beads 14.
Les conduits 8, 9, 10 sont préférentiellement de même surface et préférentiellement de même dimension et à titre d'exemple d'une largeur de Tordre de 100 mm. Le conduit central 8 peut être de dimensions supérieures aux conduits intermédiaires 10 et périphériques 9 en fonction des moyens de chauffage résistifs 15.  The ducts 8, 9, 10 are preferably of the same surface and preferably of the same size and, for example, of a width of the order of 100 mm. The central duct 8 may be larger than the intermediate and peripheral ducts 9 as a function of the resistive heating means 15.
Il est important de corréler la puissance des moyens de chauffage résistifs 15 à la dimension du conduit central 8 et du volume de la cuve 1. A titre d'exemple, des moyens de chauffe résistifs d'une puissance de 2 kilowatts peuvent être utilisés pour des volumes de cuve allant de 50 à 100 litres.  It is important to correlate the power of the resistive heating means 15 to the size of the central duct 8 and the volume of the tank 1. For example, resistive heating means with a power of 2 kilowatts can be used to tank volumes ranging from 50 to 100 liters.
Le fait que les conduits 11 soient de faible section de Tordre de 10 fois moins que la longueur des conduits 1 1 favorise la convection verticale de Teau et donc une bonne répartition de Teau chaude sans risque d'endommager les moyens de chauffage résistifs 15.  The fact that the ducts 11 are of small section 10 times less than the length of the ducts 1 1 promotes the vertical convection of water and therefore a good distribution of hot water without risk of damaging the resistive heating means 15.
En ce qui concerne le procédé de montage d'une cuve 1 selon l'invention, selon un mode de réalisation préféré, les cloisons 11 sont soudées à leurs extrémités longitudinales aux flasques supérieur et inférieur, préférentiellement par des cordons de soudure sur toute la largeur de la cloison 11. Les soudures sont avantageusement nettoyées.  With regard to the method of mounting a vessel 1 according to the invention, according to a preferred embodiment, the partitions 11 are welded at their longitudinal ends to the upper and lower flanges, preferably by weld beads over the entire width 11. The welds are advantageously cleaned.
Les profilés latéraux 12 et les profilés intermédiaires 13 sont disposés entre deux cloisons 1 1 et soudés par leurs bords latéraux aux cloisons 11 par un cordon de soudure 14 extérieur à la cuve 1 et préférentiellement présent sur toute la hauteur des profilés. The lateral sections 12 and the intermediate sections 13 are arranged between two partitions 1 1 and welded by their side edges to the partitions 11 by a weld bead 14 outside the tank 1 and preferably present over the entire height of the profiles.
REFERENCES REFERENCES
1 . Cuve 1. Tank
2. Première paroi principale  2. First main wall
3. Deuxième paroi principale  3. Second main wall
4. Paroi latérale  4. Side wall
5. Paroi latérale  5. Side wall
6. Paroi inférieure  6. Bottom wall
7. Paroi supérieure  7. Upper wall
8. Conduit central  8. Central duct
9a, 9b. Conduit périphérique  9a, 9b. Peripheral conduit
10a, 10b. Conduit intermédiaire  10a, 10b. Intermediate conduit
1 1a,b,c,d. Cloison  1a, b, c, d. Partition
12a, 12b. Profilé latéral  12a, 12b. Lateral profile
13a,b,c,d,e,f. Profilé intermédiaire 13a, b, c, d, e, f. Intermediate profile
14a,b,c,d,e,f. Cordon de soudure  14a, b, c, d, e, f. Welding cord
15. Moyens de chauffage résistifs 15. Resistive heating means
16. Raccordement fluidique inférieur16. Lower fluidic connection
17. Raccordement fluidique supérieur 18. Tube 17. Upper fluidic connection 18. Tube
19. Système d'entrée / sortie  19. Entry / exit system
20. Trou  20. Hole
21 . Moyens de fixation  21. Means of fixation
22. Blocs d'isolation  22. Insulation blocks
23. Embossage  23. Embossing
24. Tuyau de purge  24. Purge hose
25. Base du U  25. Base of the U
26. Côté du U  26. Side of the U
27. Ailes du U  27. Wings of the U
28. Plan de symétrie de la cuve  28. Plan of symmetry of the tank

Claims

REVENDICATIONS
1. Chauffe-eau comprenant une cuve (1) de forme parallélépipédique et comportant un nombre impair de conduits parallèles juxtaposés séparés par des cloisons (1 1) et dans l'un desquels s'étendent, des moyens de chauffage destinés à chauffer un volume d'eau situé dans la cuve (1), caractérisé par le fait que : 1. Water heater comprising a tank (1) of parallelepipedal shape and having an odd number of parallel ducts juxtaposed separated by partitions (1 1) and in one of which extend, heating means for heating a volume of water in the tank (1), characterized by the fact that:
- chaque cloison (11) comporte au moins une rangée de trous (20) alignés suivant la direction longitudinale des conduits, la superficie totale des trous (20) est comprise entre 10 et 40% de la superficie de la cloison (1 1).  - Each partition (11) has at least one row of holes (20) aligned in the longitudinal direction of the ducts, the total area of the holes (20) is between 10 and 40% of the area of the partition (1 1).
2. Chauffe eau selon la revendication précédente dans lequel les moyens de chauffage sont des moyens de chauffage résistifs s'étendant suivant la direction longitudinale des conduits (8,9,10) et situés au centre d'un conduit (8) disposé de façon centrale relativement aux autres conduits (9, 10).  2. Water heater according to the preceding claim wherein the heating means are resistive heating means extending in the longitudinal direction of the ducts (8, 9, 10) and located in the center of a duct (8) disposed so central to the other conduits (9, 10).
3. Chauffe-eau selon la revendication 1 dans lequel la largeur des trous suivant une direction perpendiculaire à la direction longitudinale des conduits étant telle que la largeur occupée par les trous (20) est inférieure à la moitié de la largeur de la cloison (1 1).  3. A water heater according to claim 1 wherein the width of the holes in a direction perpendicular to the longitudinal direction of the ducts being such that the width occupied by the holes (20) is less than half the width of the partition (1). 1).
4. Chauffe-eau selon l'une quelconque des revendications précédentes dans lequel chaque cloison (11) comporte une rangée de trous (20) alignés et symétriques suivant un axe situé au milieu de la largeur de la cloison (1 1).  4. A water heater according to any one of the preceding claims wherein each partition (11) has a row of holes (20) aligned and symmetrical along an axis located in the middle of the width of the partition (1 1).
5. Chauffe-eau selon l'une quelconque des revendications précédentes dans lequel les trous (20) sont régulièrement espacés suivant la direction longitudinale des conduits, l'espace entre les trous (20) étant sensiblement équivalent à la moitié de la largeur des cloisons (1 1).  5. A water heater according to any one of the preceding claims wherein the holes (20) are evenly spaced in the longitudinal direction of the conduits, the space between the holes (20) being substantially equivalent to half the width of the partitions (1 1).
6. Chauffe-eau selon l'une des revendications précédentes dans lequel les trous 6. Water heater according to one of the preceding claims wherein the holes
(20) sont de section circulaire ou elliptique. (20) are of circular or elliptical section.
7. Chauffe-eau selon l'une des revendications précédentes dans lequel les moyens de chauffage résistifs (15) sont situés dans une partie inférieure de la cuve (1) au niveau de laquelle les cloisons (1 1) délimitant le conduit central (8) ne comportent pas de trou (20).  7. A water heater according to one of the preceding claims wherein the resistive heating means (15) are located in a lower part of the tank (1) at which the partitions (1 1) delimiting the central duct (8). ) do not have a hole (20).
8. Chauffe-eau selon l'une des revendications précédentes dans lequel la longueur des rangées de trous (20) est supérieure ou égale aux deux tiers de la longueur des cloisons (11).  8. Water heater according to one of the preceding claims wherein the length of the rows of holes (20) is greater than or equal to two-thirds of the length of the partitions (11).
9. Chauffe-eau selon l'une des revendications précédentes dans lequel les cloisons (1 1) couvrent toute la longueur de la cuve (1). 9. A water heater according to one of the preceding claims wherein the partitions (1 1) cover the entire length of the tank (1).
10. Chauffe-eau selon l'une des revendications précédentes dans lequel l'écartement entre les moyens de chauffage résistifs (15) et les cloisons (11) qui l'entourent ne dépasse pas 17% de la largeur de la cuve (1). 10. Water heater according to one of the preceding claims wherein the spacing between the resistive heating means (15) and the partitions (11) surrounding it does not exceed 17% of the width of the tank (1). .
1 1. Chauffe-eau selon l'une des revendications précédentes dans lequel les conduits sont de section rectangulaire.  1 1. Water heater according to one of the preceding claims wherein the conduits are of rectangular section.
12. Chauffe-eau selon l'une des revendications précédentes dans lequel la cuve (1) comporte deux profilés latéraux (12) et au moins un jeu de profilés intermédiaires (13) fermant l'espace entre les deux profilés latéraux, les profilés étant assemblés deux à deux et intercalés avec un bord longitudinal d'une cloison (11) par un cordon de soudure (14) formé sur la face des profilés opposée à l'intérieur de la cuve (1).  12. A water heater according to one of the preceding claims wherein the vessel (1) comprises two lateral sections (12) and at least one set of intermediate sections (13) closing the space between the two lateral sections, the sections being assembled in pairs and interposed with a longitudinal edge of a partition (11) by a weld bead (14) formed on the face of the profiles opposite to the interior of the vessel (1).
13. Chauffe-eau selon l'une quelconque des revendications précédentes dans lequel la cuve (1) comporte au moins deux flasques disposés respectivement aux extrémités longitudinales des conduits et destinés à coopérer avec les extrémités longitudinales des cloisons (11).  13. A water heater according to any one of the preceding claims wherein the vessel (1) comprises at least two flanges arranged respectively at the longitudinal ends of the ducts and intended to cooperate with the longitudinal ends of the partitions (11).
14. Chauffe-eau selon l'une des revendications précédentes dans lequel l'aire de la section longitudinale de la cuve (1) est au moins dix fois plus grande que celle de la section de la cuve (1) suivant un plan perpendiculaire à la direction longitudinale.  14. A water heater according to one of the preceding claims wherein the area of the longitudinal section of the vessel (1) is at least ten times greater than that of the section of the vessel (1) in a plane perpendicular to the longitudinal direction.
15. Chauffe-eau selon l'une des revendications précédentes comprenant :  15. Water heater according to one of the preceding claims comprising:
- une série de cinq conduits,  - a series of five ducts,
- une embouchure de raccordement fluidique (16) configurée pour admettre de l'eau non chauffée dans la cuve (1) et débouchant dans la partie basse suivant la direction longitudinale d'un conduit périphérique (9a, 9b) situé à une extrémité latérale de la série de conduits,  a fluidic connection mouth (16) configured to admit unheated water into the tank (1) and opening in the lower part in the longitudinal direction of a peripheral duct (9a, 9b) located at a lateral end of the series of conduits,
- une embouchure de raccordement fluidique (17) configurée pour évacuer de l'eau chauffée hors de la cuve et débouchant dans la partie haute suivant la direction longitudinale d'un conduit intermédiaire (10a, 10b) situé entre le conduit central (8) et le conduit périphérique (9a, 9b) situé à une extrémité latérale de la série de conduits opposée au conduit périphérique (9a, 9b) comportant l'embouchure de raccordement fluidique configurée pour admettre de l'eau non chauffée.  - A fluidic connection mouth (17) configured to discharge heated water out of the tank and opening in the upper part in the longitudinal direction of an intermediate duct (10a, 10b) located between the central duct (8) and the peripheral duct (9a, 9b) located at a lateral end of the series of ducts opposite to the peripheral duct (9a, 9b) having the fluidic connection mouth configured to admit unheated water.
EP11764792.5A 2010-10-11 2011-10-07 Parallelepiped water heater having longitudinal walls in which holes are formed Withdrawn EP2627954A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1058241A FR2965898B1 (en) 2010-10-11 2010-10-11 PARALLELEPIPEDIC WATER HEATER WITH LONGITUDINAL BEDS
PCT/EP2011/067601 WO2012049099A1 (en) 2010-10-11 2011-10-07 Parallelepiped water heater having longitudinal walls in which holes are formed

Publications (1)

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EP2627954A1 true EP2627954A1 (en) 2013-08-21

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP11764792.5A Withdrawn EP2627954A1 (en) 2010-10-11 2011-10-07 Parallelepiped water heater having longitudinal walls in which holes are formed
EP20110184400 Active EP2439459B1 (en) 2010-10-11 2011-10-07 Parallelepipedal water heater with pierced longitudinal partitions

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20110184400 Active EP2439459B1 (en) 2010-10-11 2011-10-07 Parallelepipedal water heater with pierced longitudinal partitions

Country Status (3)

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EP (2) EP2627954A1 (en)
FR (1) FR2965898B1 (en)
WO (1) WO2012049099A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016133292A (en) * 2015-01-22 2016-07-25 本田技研工業株式会社 Hot water storage tank

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB731769A (en) * 1953-06-23 1955-06-15 Louis Paul Haussauer Improvements in electric water-heaters
DE4216633C2 (en) * 1992-05-20 1996-03-21 Mn Heizungsmontage Gmbh Hot water tank
SE508117C2 (en) * 1996-05-31 1998-08-31 Perstorp Ab Process for producing a pressure vessel and pressure vessel, especially for hot water heaters, prepared by the method
EP0962268A1 (en) * 1998-06-02 1999-12-08 Solistor B.V. A method for manufacturing a storage vessel for storing a medium, as well as a storage vessel manufactured in accordance with this method
WO2000043716A1 (en) * 1999-01-21 2000-07-27 Goitre, Tiziana A self-supporting plastic material water heater
FR2900719B1 (en) * 2006-05-02 2008-07-25 Claude Somajini FLAT WATER HEATER

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012049099A1 *

Also Published As

Publication number Publication date
WO2012049099A1 (en) 2012-04-19
EP2439459B1 (en) 2014-12-17
FR2965898A1 (en) 2012-04-13
EP2439459A1 (en) 2012-04-11
FR2965898B1 (en) 2014-11-21

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