EP3702691B1 - Continuous flow heater for heating a fluid - Google Patents
Continuous flow heater for heating a fluid Download PDFInfo
- Publication number
- EP3702691B1 EP3702691B1 EP19160083.2A EP19160083A EP3702691B1 EP 3702691 B1 EP3702691 B1 EP 3702691B1 EP 19160083 A EP19160083 A EP 19160083A EP 3702691 B1 EP3702691 B1 EP 3702691B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealant
- channel
- base body
- sealing
- end side
- 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.)
- Active
Links
- 239000012530 fluid Substances 0.000 title claims description 20
- 238000010438 heat treatment Methods 0.000 title claims description 6
- 238000007789 sealing Methods 0.000 claims description 91
- 239000000565 sealant Substances 0.000 claims description 78
- 239000007788 liquid Substances 0.000 claims description 9
- 239000013013 elastic material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 30
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
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
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- 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
-
- 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
- F24H9/14—Arrangements for connecting different sections, e.g. in water heaters
Definitions
- the present invention relates to a continuous-flow heater for heating a liquid, comprising a base body with a channel arrangement formed in the base body with a plurality of fluid-passing channels, wherein the fluid-passing channels are designed and set up to pass a fluid through, with at least two of the channels each being located in the base body Formation of channel openings extend on at least one end side of the base body, with deflection end faces being formed on the end side, which are designed to redirect the fluid between the channel openings, and at least one cover part, which corresponds to the deflection end faces, sealed to form sealing deflection bridge channels between associated channel openings on the End side is detachably arranged, the end side and the cover part each having sealant recesses surrounding the cross sections of the deflection bridge channels, which are each designed and set up to receive a sealant.
- Known electric instantaneous water heaters of the type mentioned generally have a base body which includes several fluid-passing channels.
- the base body is manufactured, for example, as a plastic injection molded part that has sufficient strength and electrical insulating properties.
- the base body of the generic instantaneous water heater usually has at least one end side; as a rule, such instantaneous water heaters include two end sides.
- the end sides of the base body each have openings for the fluid-passing channels. So that the fluid-passing channels can be connected to one another or the fluid can be redirected, deflection end faces are formed on the end sides.
- the known instantaneous water heaters of the type mentioned have cover parts adapted to the end sides, which have channel openings corresponding to the end sides and are designed to deflect and seal the fluid-passing channels.
- the deflection end faces of the end sides and the cover parts are joined together in a watertight and pressure-tight manner. There are seals between the cover parts and the deflection end faces Deflection bridge channels are formed, which connect adjacent or mutually assigned channel openings.
- the known generic instantaneous water heaters generally have further channel arrangements which include further components.
- motor valves are provided, which also include fluid-passing channels. Between sections of fluid-passing channels of the further channel arrangements of the instantaneous water heaters there are sections which are also joined together in a watertight and pressure-tight manner.
- Such instantaneous water heaters of the generic type are e.g. B. from the EP 2 489 951 A1 and the FR 2 803 372 A3 known.
- the US 2010/199853 A1 discloses a boiler with at least one seal positioned between a first wall of a diffuser and the base body to ensure sealing of the heating space.
- the base body of the known instantaneous water heaters is usually a cuboid structure. It can also be at least partially corner-free and therefore round-shaped.
- the water-carrying or fluid-passing channels are part of the base body.
- Known electric instantaneous water heaters of the type mentioned have a base body or channel arrangements with broad sides or also called end sides forming two end faces, to which a cover part is attached over the entire surface or at least over a partial area of the broad side.
- the channel arrangement of such instantaneous water heaters is preferably designed over the entire width, length and height of the base body. However, it is also possible for the channel arrangement to be arranged only in a partial area of the base body.
- Water-carrying channels also referred to as fluid-passing channels, are provided in the base body for guiding water or for carrying out a comparable fluid, which can be arranged in different orientations and formations.
- each of the sealant recesses is between a sealing surface on the inside of the channel and a sealing surface on the outside of the channel is arranged, and the channel-outside sealing surfaces of the end side of the base body and the cover part are set up in such a way that they lie flat against one another in a sealing manner, while the channel-inside sealing surfaces of the end side of the base body and the cover part are spaced apart from one another, leaving a sealing gap.
- a cost-effective and at the same time reliably sealed structural design of a base body for an instantaneous water heater is proposed.
- the production of the base body is simplified by spacing the sealing surfaces on the inside of the channel while leaving a sealing gap. Only the sealing surfaces on the outside of the duct lie flat against each other. This reduces the costs of the manufacturing process, since only the sealing surfaces on the outside of the channel have to be manufactured with a correspondingly precise dimension and with an extremely low tolerance, whereas the sealing surfaces on the inside of the channel can have a larger tolerance in the manufacturing process due to the sealing gap left.
- the costs for quality management for monitoring the adhered to tolerances are reduced because only the sealing surfaces on the outside of the channel have to be monitored to ensure compliance with the dimensions, since only these are in a flat seal against one another.
- the sealing gap in the area of the sealing surfaces on the inside of the channel offers a further advantage, namely that a further sealing means can be arranged in this sealing gap for additional sealing in order to achieve an additional seal.
- An expedient embodiment of the invention is characterized in that a sealant is arranged in the sealant recesses. This offers the advantage that the seal between the end side and the cover part is improved.
- the sealant arranged in the sealant recess leads to a further seal, whereby a secure seal is always ensured even at higher pressures within the channel arrangement.
- a preferred development of the invention is characterized in that the sealant comprises a molded part made of an elastic material.
- the elastic material of the sealant offers the advantage that it is deformable. Due to its deformability, the sealant conforms optimally to the surface geometry and thus creates an optimal seal.
- a preferred embodiment of the elastic material includes rubber and/or silicone and/or plastic.
- the sealant comprises a surface seal. More preferably, this surface seal is made in one piece and made of an elastic material, or of a flowable but hardening material, for example silicone, and is designed and aligned.
- the sealant particularly preferably has the cross-sectional shape of a double trapezoid joined together on the longer of the opposite sides.
- the elastic material of the sealant deforms during the passage of a fluid in the fluid-passing channels in the direction of or within the sealing gap of the surfaces on the inside of the channel.
- the elastic sealant is arranged in the sealant recess in such a way that it is designed to be deformable in the direction of or within the sealing gap when the fluid is passed through the fluid-passing channels.
- the sealant is increasingly pressed into the sealant recess. In this way, the tightness between the end side and the cover part is even further increased as the pressure increases.
- the seal is therefore designed to be self-sealing.
- a further expedient embodiment of the invention is characterized in that at least one further sealant recess is designed and set up to accommodate a further sealant with further sealing surfaces between the sealing surface on the inside of the channel and the sealing surface on the outside of the channel of the sealant recesses of the end side or the cover part.
- the seal is therefore designed to be redundant, which increases the reliability of the overall seal and results in a significantly increased average service life of the instantaneous water heater.
- a further sealant is contained in the at least one further sealant recess, wherein in a further preferred embodiment the further sealant comprises a molded part made of an elastic material.
- “Moulded part” in the sense of the invention means that it is designed according to the dimensions of the sealant recesses and the deformation of the Sealant is designed accordingly. This offers the advantage that the molded part is elastically prestressed between the cover part and the end side and achieves a high sealing effect.
- a preferred development of the invention is characterized in that the end side and the cover part are connected in a force-fitting, material- or form-fitting manner.
- a reliable fixation between the end side and the cover part is provided in a simple manner.
- the fixation between the end side and the cover part takes place by means of screw connections.
- Screw connections offer the advantage that they are easy to handle, cost-effective and generally reversible, which makes it possible, for example, to replace the sealants used.
- a further expedient embodiment of the invention is characterized in that the sealing gap of the sealing surfaces on the inside of the channel has a smaller sealing gap width than the width of the sealant recess. Due to the smaller sealing gap width of the sealing gap of the sealing surfaces on the inside of the channel than the width of the sealant recess, a barrier is created for any contaminants contained in the fluid. Furthermore, the smaller gap in the sealing surfaces on the inside of the channel ensures that the largest gap width lies within the sealant recess, which is intended to accommodate a sealant. The different gap width also enables the sealant to be preferably elastically deformed into the sealing gap of the sealing surfaces on the inside of the channel, which further increases the sealing effect.
- a preferred development of the invention is characterized in that the sealing surfaces on the outside of the channel are at least essentially gap-free. If necessary, the channel arrangement is sealed by the sealing surfaces on the outside of the channel. Furthermore, the essentially gap-free sealing surfaces prevent unwanted contaminants from penetrating the area of the sealant recess, which could, for example, lead to damage or corrosion of the sealant. At least essentially gap-free in the sense of the invention means gap-free or with a gap whose maximum width is a few ⁇ m.
- sealant recesses are arranged between fluid-passing channels on the inside of the channel arrangement, with sealing surfaces on the inside of the channel being formed and set up on both sides, the sealing surfaces on the inside of the channel having a sealing gap.
- a sealant made of an elastic material is arranged in the sealant recess. This offers the advantage that the sealant can escape into the sealing gap of the sealing surfaces on the inside of the channel if the prevailing pressure requires this.
- Fig. 1 shows a perspective exploded view of a section of a base body 10 and a cover part 16 of the instantaneous water heater according to the invention - not shown in the figures.
- the instantaneous water heater includes the base body 10 with a channel arrangement 11 formed in the base body 10 with several fluid passages Channels 12, wherein the fluid-passing channels 12 are designed and set up to pass a fluid through.
- the base body 10 of the instantaneous water heater at least two of the channels 12 extend on at least one end side 14, forming channel openings 13.
- deflection end faces 15 are formed, which are set up to divert the fluid between channel openings 13.
- the base body 10 is expediently a body made of plastic using an injection molding process.
- the instantaneous water heater includes at least one cover part 16.
- the cover part 16 is sealingly arranged on the base body 10 and can be detached from it.
- the deflection end faces 15 form sealing deflection bridge channels 17 between associated channel openings 13.
- the deflection bridge channels 17 redirect the fluid-passing channels 12 within the instantaneous water heater.
- the deflection bridge channels 17 are formed in particular within the cover part 16.
- the detachable arrangement of the cover part 16 on the base body 10 is preferably carried out by means of detachable connecting elements (not shown in the figures), particularly preferably by means of screw connections. Such connecting elements are arranged within connecting element receptacles provided for this purpose in the base body 10 and the cover part 16, whereby the cover part 16 is detachably arranged on the end side 14.
- the end side 14 and the cover part 16 each have sealant recesses 18 surrounding the cross sections of the deflection bridge channels 17.
- the sealant recesses 18 are also designed and set up to accommodate a sealant 19.
- Each of the sealant recesses 18, that is to say both the sealant recesses 18 on the end side 14 of the base body 10 and on the cover part 16, is arranged between a sealing surface 20 on the inside of the channel and a sealing surface 21 on the outside of the channel.
- the sealing surfaces 21 of the end side 14 of the base body 10 and the cover part 16 on the outside of the channel are set up in such a way that they lie flat against one another in a sealing manner.
- the surface-sealing lying on top of one another between the sealing surfaces 21 on the outside of the channel is realized in such a way that they lie on top of one another at least essentially without a gap.
- At least essentially without a gap in the sense of the invention means gap-free or with a gap whose maximum width is a few ⁇ m.
- the ones on the inside of the channel Sealing surfaces 20 of the end side 14 of the base body 10 and the cover part 16 are spaced apart from one another, leaving a sealing gap 22.
- the sealing gap 22 of the sealing surfaces 20 on the inside of the channel has a smaller sealing gap width than the width of the sealant recesses 18.
- the sealant recesses 18 are a multiple of the width of the sealing gap 22.
- a sealant 19 is preferably arranged in the sealant recesses 18 of the base body 10 and the cover part 16.
- the sealant 19 is inserted into one of the sealant recesses 18 and automatically fixed therein when the cover part 16 is attached to the base body 10.
- the sealant 19 is preferably reversible in the sealant recess 18. “Reversible” in the sense of the invention means that the sealant 19 can be removed without leaving any residue if necessary and can be replaced by a desired additional sealant 19.
- the dimensions of the sealant 19 essentially correspond to the dimensions of the interior of the adjacent sealant recesses 18 in the assembled state.
- the sealant 19 is set up in such a way that its cross-sectional area, when assembled and thus subjected to pressure, at least substantially fills the cross-sectional area of the sealing seat or the sealant recess 18 over the entire surface.
- the liquid flows through the fluid-passing channels 11, whereby the liquid is under pre-pressure and so the areas of the instantaneous water heater through which liquid flows are subjected to the corresponding liquid pressure.
- the liquid flows through the channel arrangement 11 of the base body 10, that is, the fluid-passing channels 12 as well as the deflection bridge channels 17 in the area of the cover part 16.
- the sealing surfaces 21 on the outside of the channel which lie close together, seal the remaining instantaneous water heater from unwanted water leakage.
- the sealant 19 inserted into the sealant recesses 18 supplements the tightness.
- the preferably elastic sealant 19 can achieve a further additional sealing effect by moving in the direction of the Sealing gap 22 between the inner channel sealing surfaces 20 is designed and set up to be movable, whereby a further water shut-off effect is achieved.
- the sealant 19 arranged in the sealant recesses 18 preferably has the cross-sectional shape of a double trapezoid joined together on the longer of the opposite sides.
Landscapes
- 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)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Resistance Heating (AREA)
- Gasket Seals (AREA)
Description
Die vorliegende Erfindung betrifft einen Durchlauferhitzer zum Erwärmen einer Flüssigkeit, umfassend einen Grundkörper mit einer in dem Grundkörper ausgebildeten Kanalanordnung mit mehreren fluidgängigen Kanälen, wobei die fluidgängigen Kanäle zum Durchleiten eines Fluids ausgebildet und eingerichtet sind, wobei sich mindestens zwei der Kanäle jeweils in dem Grundkörpers unter Bildung von Kanalöffnungen an mindestens einer Endseite des Grundkörpers erstrecken, wobei an der Endseite Umlenkungsstirnflächen ausgebildet sind, die zum Umlenken des Fluids zwischen den Kanalöffnungen eingerichtet sind, und mindestens ein Deckelteil, das den Umlenkungsstirnflächen entsprechend, gedichtet unter Bildung dichtender Umlenkungsbrückenkanäle zwischen zugehörigen Kanalöffnungen an der Endseite lösbar angeordnet ist, wobei die Endseite sowie das Deckelteil jeweils die Querschnitte der Umlenkungsbrückenkanäle umlaufend umgebende Dichtmittelausnehmungen aufweisen, die jeweils zur Aufnahme eines Dichtmittels ausgebildet und eingerichtet sind.The present invention relates to a continuous-flow heater for heating a liquid, comprising a base body with a channel arrangement formed in the base body with a plurality of fluid-passing channels, wherein the fluid-passing channels are designed and set up to pass a fluid through, with at least two of the channels each being located in the base body Formation of channel openings extend on at least one end side of the base body, with deflection end faces being formed on the end side, which are designed to redirect the fluid between the channel openings, and at least one cover part, which corresponds to the deflection end faces, sealed to form sealing deflection bridge channels between associated channel openings on the End side is detachably arranged, the end side and the cover part each having sealant recesses surrounding the cross sections of the deflection bridge channels, which are each designed and set up to receive a sealant.
Bekannte elektrische Durchlauferhitzer der genannten Art weisen regelmäßig einen Grundkörper auf, der mehrere fluidgängige Kanäle umfasst. Der Grundkörper ist dabei zum Beispiel als Kunststoffspritzteil gefertigt, das ausreichende Festigkeit und elektrische Isoliereigenschaften aufweist. Üblicherweise weist der Grundkörper des gattungsgemäßen Durchlauferhitzers mindestens eine Endseite auf, in der Regel umfassen derartige Durchlauferhitzer zwei Endseiten. Die Endseiten des Grundkörpers weisen dabei jeweils Öffnungen der fluidgängigen Kanäle auf. Damit die fluidgängigen Kanäle miteinander verbunden werden können oder das Fluid umgelenkt werden kann, sind an den Endseiten Umlenkungsstirnfläche ausgebildet. Ferner weisen die bekannten Durchlauferhitzer der genannten Art an die Endseiten angepasste Deckelteile auf, die zu den Endseiten korrespondierende Kanalöffnungen aufweisen und zur Umlenkung sowie zur Dichtung der fluidgängigen Kanälen ausgebildet sind. Die Umlenkungsstirnflächen der Endseiten und die Deckelteile sind wasser- und druckdicht aneinandergefügt. Zwischen den Deckelteilen und den Umlenkungsstirnflächen sind gedichtete Umlenkungsbrückenkanäle ausgebildet, die benachbarte oder einander zugeordnete Kanalöffnungen miteinander verbinden.Known electric instantaneous water heaters of the type mentioned generally have a base body which includes several fluid-passing channels. The base body is manufactured, for example, as a plastic injection molded part that has sufficient strength and electrical insulating properties. The base body of the generic instantaneous water heater usually has at least one end side; as a rule, such instantaneous water heaters include two end sides. The end sides of the base body each have openings for the fluid-passing channels. So that the fluid-passing channels can be connected to one another or the fluid can be redirected, deflection end faces are formed on the end sides. Furthermore, the known instantaneous water heaters of the type mentioned have cover parts adapted to the end sides, which have channel openings corresponding to the end sides and are designed to deflect and seal the fluid-passing channels. The deflection end faces of the end sides and the cover parts are joined together in a watertight and pressure-tight manner. There are seals between the cover parts and the deflection end faces Deflection bridge channels are formed, which connect adjacent or mutually assigned channel openings.
Ferner weisen die bekannten gattungsgemäßen Durchlauferhitzer in der Regel weitere Kanalanordnungen auf, die weitere Bauteile umfassen. Es sind beispielsweise zur Steuerung der Durchflussmenge bzw. zur Regulierung des Wasserdruckes innerhalb des Durchlauferhitzers Motorventile vorgesehen, die ebenfalls fluidgängige Kanäle umfassen. Zwischen Teilstücken von fluidgängigen Kanälen der weiteren Kanalanordnungen der Durchlauferhitzer befinden sich Abschnitte, die ebenfalls wasser- und druckdicht aneinandergefügt sind.Furthermore, the known generic instantaneous water heaters generally have further channel arrangements which include further components. For example, to control the flow rate or to regulate the water pressure within the instantaneous water heater, motor valves are provided, which also include fluid-passing channels. Between sections of fluid-passing channels of the further channel arrangements of the instantaneous water heaters there are sections which are also joined together in a watertight and pressure-tight manner.
Solche Durchlauferhitzer der gattungsgemäßen Art sind z. B. aus der
Weiter ist aus der
Die
Üblicherweise ist der Grundkörper der bekannten Durchlauferhitzer ein quaderförmiges Gebilde. Er kann auch zumindest teilweise eckenfrei und damit rundförmig sein. Die wasserführenden oder auch fluidgängigen Kanäle sind Teil des Grundkörpers.The base body of the known instantaneous water heaters is usually a cuboid structure. It can also be at least partially corner-free and therefore round-shaped. The water-carrying or fluid-passing channels are part of the base body.
Bekannte elektrische Durchlauferhitzer der genannten Art weisen einen Grundkörper bzw. Kanalanordnungen mit zwei Stirnseiten bildenden Breitseiten oder auch Endseiten genannt auf, an die jeweils über die gesamte Fläche oder zumindest über einen Teilbereich der Breitseite ein Deckelteil angesetzt ist. Die Kanalanordnung derartiger Durchlauferhitzer ist vorzugsweise über die gesamte Breite, Länge und Höhe des Grundkörpers ausgebildet. Es ist aber auch möglich, dass die Kanalanordnung nur in einem Teilbereich des Grundkörpers angeordnet ist. In dem Grundkörper sind wasserführende Kanäle, auch als fluidgängige Kanäle bezeichnet, zur Wasserführung oder zur Durchführung eines vergleichbaren Fluids vorgesehen, die in unterschiedlichen Ausrichtungen und Formationen angeordnet sein können.Known electric instantaneous water heaters of the type mentioned have a base body or channel arrangements with broad sides or also called end sides forming two end faces, to which a cover part is attached over the entire surface or at least over a partial area of the broad side. The channel arrangement of such instantaneous water heaters is preferably designed over the entire width, length and height of the base body. However, it is also possible for the channel arrangement to be arranged only in a partial area of the base body. Water-carrying channels, also referred to as fluid-passing channels, are provided in the base body for guiding water or for carrying out a comparable fluid, which can be arranged in different orientations and formations.
Die Konstruktion derartiger bekannter Grundkörper, insbesondere der Endseiten ist mit komplexen, langgezogenen Geometrien von Dichtflächen verbunden, nämlich mit Dichtflächen bzw. Dichtbereichen, die sich an den Endseiten über die gesamte Breite erstrecken. Der Grundkörper weist regelmäßig einen großen Querschnitt auf, weshalb die Deckelteile ebenfalls relativ groß und massiv sind. Dies führt zu erheblichen Problemen der Abdichtung der Flächen zwischen den Umlenkungsstirnflächen und den Deckelteilen. Insbesondere wirkt sich die erforderliche Abdichtung zwischen Grundkörper und Deckelteilen nachteilig auf eine effiziente und kostengünstige Bauweise aus, da diese stets eine hohe Dichtwirkung ausweisen müssen, um einen Austritt derin der Regel unter Vordruck stehenden - Flüssig in jedem Fall zu vermeiden. Um dem zu begegnen, sind hinsichtlich der Kraftverteilung an den Deckelteilen zur Dichtung über die gesamte Breite aufwendige Befestigungsmaßnahmen mit einer Vielzahl von Befestigungsstellen und auch zusätzlichen Dichtmitteln und/oder besondere Abstimmung darauf erforderlich. Im Übrigen sind regelmäßig aufwendige Dichtmittelkonstruktionen oder aufwendige Befestigungsmittel zur Fixierung der Deckelteile an dem Grundkörper vorgesehen.The construction of such known base bodies, in particular the end sides, is associated with complex, elongated geometries of sealing surfaces, namely with sealing surfaces or sealing areas that extend over the entire width on the end sides. The base body regularly has a large cross section, which is why the cover parts are also relatively large and solid. This leads to significant problems with sealing the surfaces between the deflection end faces and the cover parts. In particular, the required seal between the base body and cover parts has a disadvantageous effect on an efficient and cost-effective design, since these must always have a high sealing effect in order to avoid the liquid, which is usually under pre-pressure, escaping in any case. In order to counteract this, complex fastening measures with a large number of fastening points and additional sealants and/or special coordination are required with regard to the force distribution on the cover parts for sealing over the entire width. Furthermore, complex sealant constructions or complex fastening means are regularly provided for fixing the cover parts to the base body.
Um eine zuverlässige Dichtwirkungen zwischen dem Grundkörper und dem mindestens einen Deckelteil zu erzielen, sind sowohl an Grundkörper als auch an den Deckelteilen entsprechende Bearbeitungsschritte vorzunehmen, um eine Oberflächenbeschaffenheit zu erzeugen, wodurch ein dichtender Zusammenbau ermöglicht wird. Die derartig bearbeiteten Oberflächen müssen eine hohe Passgenauigkeit aufweisen, um eine exakte Dichtigkeit zu erbringen. Dafür sind in der Regel eine Vielzahl an Bearbeitungsschritte vorgesehen, um aus den Kunststoffspritzteilen Grundkörper bzw. Deckelteile herzustellen, die weiter verarbeitbar sind. Insbesondere ist dabei das Zerspanen auf ein exaktes Maß arbeits- und kostenintensiv.In order to achieve a reliable sealing effect between the base body and the at least one cover part, appropriate processing steps must be carried out on both the base body and the cover parts in order to produce a surface finish, which enables a sealing assembly. The surfaces processed in this way must have a high degree of precision in order to achieve an exact seal. For this purpose, a large number of processing steps are usually provided in order to produce base bodies or cover parts from the plastic injection-molded parts that can be further processed. In particular, machining to an exact size is labor-intensive and cost-intensive.
Es ist daher Aufgabe der vorliegenden Erfindung, einen Durchlauferhitzer mit einem Grundkörper vorzuschlagen, der gute Dichteigenschaft der Kanalanordnungen aufweist, insbesondere zwischen Umlenkungsstirnflächen und Deckelteilen. Weiter ist es Aufgabe einen Durchlauferhitzer vorzuschlagen, dessen Herstellungsprozess vereinfacht wird und dadurch kosteneffizienter erfolgt.It is therefore the object of the present invention to propose an instantaneous water heater with a base body which has good sealing properties of the channel arrangements, in particular between the deflection end faces and cover parts. It is also the task of proposing an instantaneous water heater whose manufacturing process is simplified and therefore more cost-efficient.
Die Aufgabe wird durch den eingangs genannten Durchlauferhitzer zum Erwärmen einer Flüssigkeit dadurch gelöst, dass jede der Dichtmittelausnehmungen zwischen einer kanalinnenseitigen Dichtfläche und einer kanalaußenseitigen Dichtfläche angeordnet ist, und jeweils die kanalaußenseitigen Dichtflächen der Endseite des Grundkörpers und des Deckelteils derart eingerichtet sind, dass diese flächig dichtend aneinander liegen, während jeweils die kanalinnenseitigen Dichtflächen der Endseite des Grundkörpers und des Deckelteils unter Belassung eines Dichtspaltes voneinander beabstandet sind.The task is achieved by the aforementioned instantaneous water heater for heating a liquid in that each of the sealant recesses is between a sealing surface on the inside of the channel and a sealing surface on the outside of the channel is arranged, and the channel-outside sealing surfaces of the end side of the base body and the cover part are set up in such a way that they lie flat against one another in a sealing manner, while the channel-inside sealing surfaces of the end side of the base body and the cover part are spaced apart from one another, leaving a sealing gap.
Vorteilhafterweise wird so eine kostengünstige und zugleich zuverlässig gedichtete konstruktive Bauweise eines Grundkörpers für einen Durchlauferhitzers vorgeschlagen. Die Herstellung des Grundkörpers wird vereinfacht, indem die kanalinnenseitigen Dichtflächen unter Belassung eines Dichtspaltes beabstandet sind. Lediglich die kanalaußenseitigen Dichtflächen liegen flächig dichtend aneinander. Hierdurch reduzieren sich die Kosten des Herstellungsprozesses, da nur die kanalaußenseitigen Dichtflächen mit einer entsprechend genauen Bemaßung und mit äußerst geringer Toleranz hergestellt werden müssen, wohingegen die kanalinnenseitigen Dichtflächen aufgrund des belassenen Dichtspalts eine größere Toleranz bei dem Herstellungsprozess aufweisen können. Zudem reduzieren sich die Kosten für das Qualitätsmanagement für die Überwachung der eingehaltenen Toleranzen, indem nur die kanalaußenseitigen Dichtflächen für die Einhaltung der Bemaßungen überwacht werden müssen, da nur diese flächig dichtend aneinander liegen. Der Dichtspalt im Bereich der kanalinnenseitigen Dichtflächen bietet einen weiteren Vorteil, nämlich, dass in diesem Dichtspalt ein weiteres Dichtmittel zur ergänzenden Abdichtung angeordnet werden kann, um eine zusätzliche Abdichtung zu erreichen.Advantageously, a cost-effective and at the same time reliably sealed structural design of a base body for an instantaneous water heater is proposed. The production of the base body is simplified by spacing the sealing surfaces on the inside of the channel while leaving a sealing gap. Only the sealing surfaces on the outside of the duct lie flat against each other. This reduces the costs of the manufacturing process, since only the sealing surfaces on the outside of the channel have to be manufactured with a correspondingly precise dimension and with an extremely low tolerance, whereas the sealing surfaces on the inside of the channel can have a larger tolerance in the manufacturing process due to the sealing gap left. In addition, the costs for quality management for monitoring the adhered to tolerances are reduced because only the sealing surfaces on the outside of the channel have to be monitored to ensure compliance with the dimensions, since only these are in a flat seal against one another. The sealing gap in the area of the sealing surfaces on the inside of the channel offers a further advantage, namely that a further sealing means can be arranged in this sealing gap for additional sealing in order to achieve an additional seal.
Eine zweckmäßige Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass in den Dichtmittelausnehmungen ein Dichtmittel angeordnet ist. Dies bietet den Vorteil, dass die Abdichtung zwischen Endseite und dem Deckelteil verbessert wird. Das in der Dichtmittelausnehmung angeordnete Dichtmittel führt zu einer weiteren Abdichtung, wodurch eine sichere Dichtung auch bei höheren Drücken innerhalb der Kanalanordnung stets gegeben ist.An expedient embodiment of the invention is characterized in that a sealant is arranged in the sealant recesses. This offers the advantage that the seal between the end side and the cover part is improved. The sealant arranged in the sealant recess leads to a further seal, whereby a secure seal is always ensured even at higher pressures within the channel arrangement.
Eine bevorzugte Weiterbildung der Erfindung zeichnet sich dadurch aus, dass das Dichtmittel ein Formteil aus einem elastischen Material umfasst. Das elastische Material des Dichtmittels bietet den Vorteil, dass dieser verformbar ist. Aufgrund der Verformbarkeit schmiegt sich das Dichtmittel optimal an die Oberflächengeometrie an und bewirkt so eine optimale Dichtung. Eine bevorzugte Ausführungsform des elastischen Materials, umfasst Kautschuk, und/oder Silikon und/oder Kunststoff.A preferred development of the invention is characterized in that the sealant comprises a molded part made of an elastic material. The elastic material of the sealant offers the advantage that it is deformable. Due to its deformability, the sealant conforms optimally to the surface geometry and thus creates an optimal seal. A preferred embodiment of the elastic material includes rubber and/or silicone and/or plastic.
Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung umfasst das Dichtmittel eine Flächendichtung. Weiter bevorzugt ist diese Flächendichtung einstückig und aus einem elastischen Material, oder aus einem fließfähigen aber aushärtendem Material, beispielsweise Silikon, ausgebildet und eigenrichtet. Besonders bevorzugt weist das Dichtmittel im Querschnitt die Form eines an den längeren der gegenüberliegenden Seiten zusammengefügten doppelten Trapezes auf.According to a further preferred embodiment of the invention, the sealant comprises a surface seal. More preferably, this surface seal is made in one piece and made of an elastic material, or of a flowable but hardening material, for example silicone, and is designed and aligned. The sealant particularly preferably has the cross-sectional shape of a double trapezoid joined together on the longer of the opposite sides.
Gemäß einer weiteren bevorzugten Ausbildung der Erfindung verformt sich das elastische Material des Dichtmittels während des Durchleitens eines Fluids in dem fluidgängigen Kanälen in Richtung bzw. innerhalb des Dichtspalts der kanalinnenseitigen Flächen. Anders ausgedrückt ist das elastische Dichtmittel derart in der Dichtmittelausnehmung angeordnet, dass es beim Durchleiten des Fluids in den fluidgängigen Kanälen in Richtung bzw. innerhalb des Dichtspalts verformbar ausgebildet ist. Mit steigendem Fluiddruck wird so das Dichtmittel zunehmend in die Dichtmittelausnehmung gedrückt. Auf diese Weise wird die Dichtigkeit zwischen Endseite und Deckelteil mit steigendem Druck sogar weiter erhöht. Die Dichtung ist folglich selbstdichtend ausgebildet.According to a further preferred embodiment of the invention, the elastic material of the sealant deforms during the passage of a fluid in the fluid-passing channels in the direction of or within the sealing gap of the surfaces on the inside of the channel. In other words, the elastic sealant is arranged in the sealant recess in such a way that it is designed to be deformable in the direction of or within the sealing gap when the fluid is passed through the fluid-passing channels. As the fluid pressure increases, the sealant is increasingly pressed into the sealant recess. In this way, the tightness between the end side and the cover part is even further increased as the pressure increases. The seal is therefore designed to be self-sealing.
Eine weitere zweckmäßige Ausbildung der Erfindung ist dadurch gekennzeichnet, dass zwischen der kanalinnenseitigen Dichtfläche und der kanalaußenseitigen Dichtfläche der Dichtmittelausnehmungen der Endseite bzw. des Deckelteils mindestens eine weitere Dichtmittelausnehmung zur Aufnahme eines weiteren Dichtmittels mit weiteren Dichtflächen ausgebildet und eingerichtet ist. Hierdurch wird eine zusätzliche Dichtungsebene zwischen Endseite und Deckelteil geschaffen. Die Dichtung ist folglich redundant ausgebildet, was die Zuverlässigkeit der Gesamtdichtung steigert und in einer deutlich gesteigerten mittleren Standzeit des Durchlauferhitzers resultiert. Ferner ist bei einem möglichen Defekt einer der Dichtungen oder Beschädigungen einer der Dichtflächen, eine weitere Dichtungsebene gegeben, die Undichtigkeiten zuverlässig entgegenwirkt.A further expedient embodiment of the invention is characterized in that at least one further sealant recess is designed and set up to accommodate a further sealant with further sealing surfaces between the sealing surface on the inside of the channel and the sealing surface on the outside of the channel of the sealant recesses of the end side or the cover part. This creates an additional sealing level between the end side and the cover part. The seal is therefore designed to be redundant, which increases the reliability of the overall seal and results in a significantly increased average service life of the instantaneous water heater. Furthermore, in the event of a possible defect in one of the seals or damage to one of the sealing surfaces, there is an additional sealing level that reliably counteracts leaks.
Gemäß einer weiteren bevorzugten Ausführungsform ist in der mindestens einen weiteren Dichtmittelausnehmung ein weiteres Dichtmittel enthalten, wobei in einer weiteren bevorzugten Ausführungsform das weitere Dichtmittel ein Formteilaus einem elastischen Material umfasst. "Formteil" im Sinne der Erfindung bedeutet, dass dieses gemäß den Dimensionen der Dichtmittelausnehmungen und der Verformung des Dichtmittels entsprechend ausgebildet ist. Dies bietet den Vorteil, dass das Formteil zwischen Deckelteil und Endseite elastisch vorgespannt eine hohe Dichtwirkung erzielt.According to a further preferred embodiment, a further sealant is contained in the at least one further sealant recess, wherein in a further preferred embodiment the further sealant comprises a molded part made of an elastic material. “Moulded part” in the sense of the invention means that it is designed according to the dimensions of the sealant recesses and the deformation of the Sealant is designed accordingly. This offers the advantage that the molded part is elastically prestressed between the cover part and the end side and achieves a high sealing effect.
Eine bevorzugte Weiterbildung der Erfindung zeichnet sich dadurch aus, dass die Endseite und das Deckelteil kraft-, stoff- oder formschlüssig verbunden sind. So wird auf einfache Weise eine zuverlässige Fixierung zwischen Endseite und Deckelteil zur Verfügung gestellt. Es wird dabei vorzugsweise nicht nur eine Endseite und ein Deckelteil kraft-, stoff- oder formschlüssig verbunden, sondern alle an der Kanalanordnung vorhandenen Endseiten und Deckelteile werden kraft-, stoff- oder formschlüssig verbunden. Hierdurch entsteht eine Kanalanordnung mit einem abgeschlossenen innenliegenden Fluidraum, der dazu geeignet ist, ein Fluid durchzuführen bzw. ein Fluid in diesem Fluidraum zu erwärmen.A preferred development of the invention is characterized in that the end side and the cover part are connected in a force-fitting, material- or form-fitting manner. In this way, a reliable fixation between the end side and the cover part is provided in a simple manner. Preferably, not only one end side and a cover part are connected in a force-fitting, material- or form-fitting manner, but all end sides and cover parts present on the channel arrangement are connected in a force-fitting, material-fitting or form-fitting manner. This creates a channel arrangement with a closed internal fluid space, which is suitable for passing a fluid through or heating a fluid in this fluid space.
Gemäß einer weiteren bevorzugten Ausbildung der Erfindung erfolgt die Fixierung zwischen Endseite und Deckelteil mittels Schraubverbindungen. Schraubverbindungen bieten den Vorteil, dass diese einfach zu handhaben, kostengünstig und in der Regel reversibel sind, wodurch beispielsweise ein Austauschen der eingesetzten Dichtmittel ermöglicht wird.According to a further preferred embodiment of the invention, the fixation between the end side and the cover part takes place by means of screw connections. Screw connections offer the advantage that they are easy to handle, cost-effective and generally reversible, which makes it possible, for example, to replace the sealants used.
Eine weitere zweckmäßige Ausbildung der Erfindung ist dadurch gekennzeichnet, dass der Dichtspalt der kanalinnenseitigen Dichtflächen eine geringere Dichtspaltbreite aufweist als die Breite der Dichtmittelausnehmung. Durch die geringere Dichtspaltbreite des Dichtspalts der kanalinnenseitigen Dichtflächen als die Breite der Dichtmittelausnehmung, erfolgt eine Barriere für eventuelle Störstoffe, die in dem Fluid enthalten sind. Ferner ist durch den geringeren Spalt der kanalinnenseitigen Dichtflächen sichergestellt, dass die größte Spaltbreite innerhalb der Dichtmittelausnehmung liegt, die dafür vorgesehen ist, ein Dichtmittel aufzunehmen. Die unterschiedliche Spaltbreite ermöglicht zudem die vorzugsweise elastische Verformung des Dichtmittels in den Dichtspalt der kanalinnenseitigen Dichtflächen, wodurch die Dichtwirkung weiter erhöht wird.A further expedient embodiment of the invention is characterized in that the sealing gap of the sealing surfaces on the inside of the channel has a smaller sealing gap width than the width of the sealant recess. Due to the smaller sealing gap width of the sealing gap of the sealing surfaces on the inside of the channel than the width of the sealant recess, a barrier is created for any contaminants contained in the fluid. Furthermore, the smaller gap in the sealing surfaces on the inside of the channel ensures that the largest gap width lies within the sealant recess, which is intended to accommodate a sealant. The different gap width also enables the sealant to be preferably elastically deformed into the sealing gap of the sealing surfaces on the inside of the channel, which further increases the sealing effect.
Eine bevorzugte Weiterbildung der Erfindung zeichnet sich dadurch aus, dass die kanalaußenseitigen Dichtflächen zumindest im Wesentlichen spaltfrei sind. Hierdurch erfolgt im Bedarfsfall eine Abdichtung der Kanalanordnung durch die kanalaußenseitigen Dichtflächen. Ferner wird durch die im Wesentlichen spaltfreien Dichtflächen verhindert, dass unerwünschte Störstoffe in den Bereich der Dichtmittelausnehmung eindringen, was beispielsweise zu Beschädigungen oder Korrosionen des Dichtmittels führen könnte. Zumindest im Wesentlichen spaltfrei im Sinne der Erfindung bedeutet spaltfrei oder mit einem Spalt dessen maximale Breite wenige µm aufweist.A preferred development of the invention is characterized in that the sealing surfaces on the outside of the channel are at least essentially gap-free. If necessary, the channel arrangement is sealed by the sealing surfaces on the outside of the channel. Furthermore, the essentially gap-free sealing surfaces prevent unwanted contaminants from penetrating the area of the sealant recess, which could, for example, lead to damage or corrosion of the sealant. At least essentially gap-free in the sense of the invention means gap-free or with a gap whose maximum width is a few µm.
Gemäß einer weiteren bevorzugten Ausführungsform sind zwischen in der Kanalanordnung innenliegenden fluidgängigen Kanälen Dichtmittelausnehmungen angeordnet, mit beidseitig umgebenden ausgebildet und eingerichteten kanalinnenseitigen Dichtflächen, wobei die kanalinnenseitigen Dichtflächen einen Dichtspalt aufweisen. Weiter bevorzugt ist in der Dichtmittelausnehmung ein Dichtmittel aus einem elastischen Material angeordnet. Dies bietet den Vorteil, dass das Dichtmittel in den Dichtspalt der kanalinnenseitigen Dichtflächen ausweichen kann, sofern ein vorherrschender Druck dies erfordert.According to a further preferred embodiment, sealant recesses are arranged between fluid-passing channels on the inside of the channel arrangement, with sealing surfaces on the inside of the channel being formed and set up on both sides, the sealing surfaces on the inside of the channel having a sealing gap. Further preferably, a sealant made of an elastic material is arranged in the sealant recess. This offers the advantage that the sealant can escape into the sealing gap of the sealing surfaces on the inside of the channel if the prevailing pressure requires this.
Weitere bevorzugte und/oder zweckmäßige Merkmale und Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung. Besonders bevorzugte Ausführungsformen werden anhand der beigefügten Zeichnung näher erläutert. In der Zeichnung zeigt:
- Fig. 1
- eine perspektivische Explosionsansicht eines Ausschnitts des Grundkörpers und des Deckelteils des erfindungsgemäßen Durchlauferhitzers,
- Fig. 2
- eine Seitenansicht des in
Fig. 1 gezeigten Grundkörpers und des Deckelteils im zusammengesetzten Zustand; - Fig. 3
- eine vergrößerte Seitenansicht der in den
Fig. 1 undFig. 2 gezeigten Dichtflächen mit den Dichtmittelausnehmungen
und - Fig. 4
- eine vergrößerte perspektivische Explosionsansicht der in
Fig. 3 gezeigten Dichtflächen mit den Dichtmittelausnehmungen.
- Fig. 1
- a perspective exploded view of a section of the base body and the cover part of the instantaneous water heater according to the invention,
- Fig. 2
- a side view of the in
Fig. 1 shown base body and the cover part in the assembled state; - Fig. 3
- an enlarged side view of the in the
Fig. 1 andFig. 2 shown sealing surfaces with the sealant recesses
and - Fig. 4
- an enlarged perspective exploded view of the in
Fig. 3 shown sealing surfaces with the sealant recesses.
Der Durchlauferhitzer umfasst mindestens ein Deckelteil 16. Wie insbesondere aus
Wie weiterhin aus der
Anhand der
In den
Wie insbesondere aus den
Im Betriebszustand des Durchlauferhitzers durchströmt die Flüssigkeit die fluidgängigen Kanäle 11, wobei die Flüssigkeit unter Vordruck steht und so die flüssigkeitsdurchströmten Bereiche des Durchlauferhitzers mit entsprechendem Flüssigkeitsdruck beaufschlagt sind. Die Flüssigkeit durchströmt die Kanalanordnung 11 des Grundkörpers 10, das heißt die fluidgängigen Kanäle 12 sowie die Umlenkungsbrückenkanäle 17 im Bereich des Deckelteils 16. Hierfür dichten die flächig dichten aneinander liegenden kanalaußenseitigen Dichtflächen 21 den restlichen Durchlauferhitzer vor unerwünschten Wasseraustritt ab. Ferner ergänzt das in die Dichtmittelausnehmungen 18 eingesetzte Dichtmittel 19 die Dichtigkeit. Bei Drücken kann das vorzugsweise elastische Dichtmittel 19 eine weiter ergänzende Dichtwirkung erzielen, indem es in Richtung des Dichtspalts 22 zwischen den kanalinnenliegenden Dichtflächen 20 beweglich ausgebildet und eingerichtet ist, wodurch eine weitere Wasserabsperrwirkung erzielt wird.In the operating state of the instantaneous water heater, the liquid flows through the fluid-passing
In
Claims (8)
- Continuous-flow heater for heating a liquid comprisinga base body (10) with a channel arrangement (11) formed in the base body (10) with a plurality of fluid passable channels (12), wherein the fluid passable channels (12) are configured and adapted for passing a fluid,wherein at least two of the channels (12) each extend in the base body (10) forming channel openings (13) at at least one end side (14) of the base body (10), wherein deflection end faces (15) are configured at the end side (14) which are adapted to deflect the fluid between the channel openings (13), andat least one cover member (16), which is detachably arranged corresponding to the deflection end faces (15) in a sealed manner forming sealing deflection bridge channels (17) between corresponding channel openings (13) at the end side (14),wherein the end side (14) as well as the cover member (16) each have sealant recesses (18) circumferentially surrounding the cross-sections of the deflection bridge channels (17), which are each configured and adapted to receive a sealant (19),characterised in thateach of the sealant recesses (18) is arranged between a channel-internal sealing surface (20) and a channel-external sealing surface (21), and the channel-external sealing surfaces (21) of the end side (14) of the base body (10) and of the cover member (16) are respectively adaptet in such a manner that they are sealingly adjacent to each other in a planar manner, while the respective channel-internal sealing surfaces (20) of the end side (14) of the base body (10) and of the cover member (16) are spaced apart from each other, leaving a sealing gap (22).
- Continuous-flow heater according to claim 1, characterised in that a sealant (19) is arranged in the sealant recesses (18).
- Continuous-flow heater according to claim 1 or 2, characterised in that the sealant (19) comprises an elastic material.
- Continuous-flow heater according to any one of claims 1 to 3, characterised in that the sealant (19) comprises a moulded part or a surface seal.
- Continuous-flow heater according to one of the claims 1 to 4, characterised in that in between the channel-internal sealing surface (20) and the channel-external sealing surface (21) of the sealant recesses (18) of the end side (14) or the cover member (16), at least one further sealant recess is configured and adapted to receive a further sealant having further sealing surfaces.
- Continuous-flow heater according to one of claims 1 to 5, characterised in that the end side (14) and the cover member (16) are non-positively, materially or positively connected.
- Continuous-flow heater according to one of claims 1 to 6, characterised in that the sealing gap (22) of the channel-internal sealing surfaces (20) has a smaller sealing gap width than the width of the sealant recess (18).
- Continuous-flow heater according to one of claims 1 to 7, characterised in that the channel-external sealing surfaces (21) are at least substantially free of gaps.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19160083.2A EP3702691B1 (en) | 2019-02-28 | 2019-02-28 | Continuous flow heater for heating a fluid |
PL19160083.2T PL3702691T3 (en) | 2019-02-28 | 2019-02-28 | Continuous flow heater for heating a fluid |
CN202010129875.7A CN111623524B (en) | 2019-02-28 | 2020-02-28 | Continuous heater for heating liquids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19160083.2A EP3702691B1 (en) | 2019-02-28 | 2019-02-28 | Continuous flow heater for heating a fluid |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3702691A1 EP3702691A1 (en) | 2020-09-02 |
EP3702691B1 true EP3702691B1 (en) | 2023-11-15 |
Family
ID=65657274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19160083.2A Active EP3702691B1 (en) | 2019-02-28 | 2019-02-28 | Continuous flow heater for heating a fluid |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3702691B1 (en) |
CN (1) | CN111623524B (en) |
PL (1) | PL3702691T3 (en) |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803372A3 (en) | 1999-12-29 | 2001-07-06 | Chia Hsiung Wu | Heating apparatus comprises a heat exchanger with a slot receiving a heater covered with an insulating layer and guiding slots on both of heat exchanger cover plates where the fluid pipes are fitting |
DE102004039437A1 (en) | 2004-08-13 | 2006-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance sealing device, has construction unit with base that is insertable into groove between slot bases, and region protecting slot bases is provided in installation position to form force of gravity-conditioned liquid barrier |
EP1884383A1 (en) | 2006-07-31 | 2008-02-06 | Behr France Rouffach SAS | Electric heating device, in particular for a vehicle |
DE102007010420A1 (en) | 2007-03-01 | 2008-09-04 | Stiebel Eltron Gmbh & Co. Kg | Remote control for heating and hot water devices, has seal, made from plastic soft component, is fixed in housing shell, and seal has sealing lip, which is attached to wall of upper shell or lower shell |
US20100199853A1 (en) | 2007-09-07 | 2010-08-12 | Compagnie Mediterraneenne Des Cafes | Boiler for a machine for making hot beverages |
EP2330865A1 (en) | 2009-12-03 | 2011-06-08 | Eberspächer catem GmbH & Co. KG | Electric heating device |
EP2489952A1 (en) | 2011-02-21 | 2012-08-22 | Gerdes OHG | Electric continuous-flow heaters |
DE102011013972A1 (en) | 2011-03-14 | 2012-09-20 | Stiebel Eltron Gmbh & Co. Kg | Domestic electrical heater i.e. geyser, has cooling body including two sides attached with each other, where water partially flows against body at one of sides, and seal is arranged in region of body and inserted into hole of discharge body |
DE102012013345A1 (en) | 2012-07-06 | 2014-01-09 | Stiebel Eltron Gmbh & Co. Kg | Heating block body for heating block of warm water heater i.e. instantaneous water heater, has position holders aligned in one state such that component is held in receiving area in assigned state during assembling partial shells |
DE102013021287A1 (en) | 2013-12-19 | 2015-06-25 | Stiebel Eltron Gmbh & Co. Kg | Joining component for receiving and / or guiding a fluid |
CN106160430A (en) | 2015-04-13 | 2016-11-23 | 罗伯特·博世有限公司 | The power conversion unit of electric vehicle and power source bus thereof |
EP3213006A1 (en) | 2014-10-28 | 2017-09-06 | Maxheat Hot Water Pty Ltd. | Hot water storage device |
DE102016002941A1 (en) | 2016-03-11 | 2017-09-14 | Stiebel Eltron Gmbh & Co. Kg | Instantaneous water heater with one connection pipe |
US20170295613A1 (en) * | 2016-04-07 | 2017-10-12 | Lg Electronics Inc. | Heater assembly |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59164470A (en) * | 1983-03-04 | 1984-09-17 | Kitamura Gokin Seisakusho:Kk | Thermostat mixing valve |
EP2407069A1 (en) * | 2010-07-12 | 2012-01-18 | Bleckmann GmbH & Co. KG | Dynamic flow-through heater |
DE102010040042A1 (en) * | 2010-08-31 | 2012-03-01 | BSH Bosch und Siemens Hausgeräte GmbH | Heating block and sealing element for a heating block |
EP2489951B1 (en) * | 2011-02-21 | 2017-04-05 | Gerdes OHG | Electric continuous-flow heater |
CA2735228C (en) * | 2011-03-21 | 2017-11-28 | Ray King | Boiler housing for electro-thermal heating system |
GB2542137B (en) * | 2015-09-08 | 2017-12-06 | Redring Xpelair Group Ltd | Water boiler |
CH711968A1 (en) * | 2015-12-28 | 2017-06-30 | C3 Casting Competence Center Gmbh | Heater. |
CN108224751A (en) * | 2017-12-28 | 2018-06-29 | 苏州路之遥科技股份有限公司 | It is a kind of to sterilize instantaneously heated type heater for toilet seat |
-
2019
- 2019-02-28 EP EP19160083.2A patent/EP3702691B1/en active Active
- 2019-02-28 PL PL19160083.2T patent/PL3702691T3/en unknown
-
2020
- 2020-02-28 CN CN202010129875.7A patent/CN111623524B/en active Active
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803372A3 (en) | 1999-12-29 | 2001-07-06 | Chia Hsiung Wu | Heating apparatus comprises a heat exchanger with a slot receiving a heater covered with an insulating layer and guiding slots on both of heat exchanger cover plates where the fluid pipes are fitting |
FR2803372B3 (en) * | 1999-12-29 | 2001-12-21 | Chia Hsiung Wu | SAFETY SEALING HEATING APPARATUS |
DE102004039437A1 (en) | 2004-08-13 | 2006-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance sealing device, has construction unit with base that is insertable into groove between slot bases, and region protecting slot bases is provided in installation position to form force of gravity-conditioned liquid barrier |
EP1884383A1 (en) | 2006-07-31 | 2008-02-06 | Behr France Rouffach SAS | Electric heating device, in particular for a vehicle |
EP1884383B1 (en) * | 2006-07-31 | 2010-09-15 | Behr France Rouffach SAS | Electric heating device, in particular for a vehicle |
DE102007010420A1 (en) | 2007-03-01 | 2008-09-04 | Stiebel Eltron Gmbh & Co. Kg | Remote control for heating and hot water devices, has seal, made from plastic soft component, is fixed in housing shell, and seal has sealing lip, which is attached to wall of upper shell or lower shell |
US20100199853A1 (en) | 2007-09-07 | 2010-08-12 | Compagnie Mediterraneenne Des Cafes | Boiler for a machine for making hot beverages |
EP2330865B1 (en) * | 2009-12-03 | 2015-10-21 | Eberspächer catem GmbH & Co. KG | Electric heating device |
EP2330865A1 (en) | 2009-12-03 | 2011-06-08 | Eberspächer catem GmbH & Co. KG | Electric heating device |
EP2489952A1 (en) | 2011-02-21 | 2012-08-22 | Gerdes OHG | Electric continuous-flow heaters |
DE102011013972A1 (en) | 2011-03-14 | 2012-09-20 | Stiebel Eltron Gmbh & Co. Kg | Domestic electrical heater i.e. geyser, has cooling body including two sides attached with each other, where water partially flows against body at one of sides, and seal is arranged in region of body and inserted into hole of discharge body |
DE102012013345A1 (en) | 2012-07-06 | 2014-01-09 | Stiebel Eltron Gmbh & Co. Kg | Heating block body for heating block of warm water heater i.e. instantaneous water heater, has position holders aligned in one state such that component is held in receiving area in assigned state during assembling partial shells |
DE102013021287A1 (en) | 2013-12-19 | 2015-06-25 | Stiebel Eltron Gmbh & Co. Kg | Joining component for receiving and / or guiding a fluid |
EP3213006A1 (en) | 2014-10-28 | 2017-09-06 | Maxheat Hot Water Pty Ltd. | Hot water storage device |
CN106160430A (en) | 2015-04-13 | 2016-11-23 | 罗伯特·博世有限公司 | The power conversion unit of electric vehicle and power source bus thereof |
CN106160430B (en) * | 2015-04-13 | 2020-04-03 | 罗伯特·博世有限公司 | Power conversion unit of electric vehicle and power bus thereof |
DE102016002941A1 (en) | 2016-03-11 | 2017-09-14 | Stiebel Eltron Gmbh & Co. Kg | Instantaneous water heater with one connection pipe |
US20170295613A1 (en) * | 2016-04-07 | 2017-10-12 | Lg Electronics Inc. | Heater assembly |
Non-Patent Citations (1)
Title |
---|
GEHRCKENS OTTO C.: "Das O-Ring 1x1, ALLES RUND UM DIE O‑RING DICHTUNG", COG DICHTUNGSTECHNIK, 30 May 2016 (2016-05-30), pages 1 - 52, XP093208894 |
Also Published As
Publication number | Publication date |
---|---|
EP3702691A1 (en) | 2020-09-02 |
CN111623524B (en) | 2023-01-03 |
PL3702691T3 (en) | 2024-04-15 |
CN111623524A (en) | 2020-09-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102016116361B3 (en) | Control device for the coolant flow in a cooling circuit of an internal combustion engine | |
AT391928B (en) | VALVE, ESPECIALLY FOR COMPRESSORS | |
WO2006077121A1 (en) | Hydraulic pump for a power steering system | |
EP3204676A1 (en) | Shut-off body for a valve and valve comprising said type of shut-off body | |
EP3702691B1 (en) | Continuous flow heater for heating a fluid | |
EP0864859A1 (en) | Modular control block for analysis technics | |
EP3804001B1 (en) | Temperature-control device for individual battery cells which are combined into a module | |
DE102020112696B4 (en) | Valve and diaphragm pump with inlet and outlet valves | |
WO2008086841A1 (en) | Sealing arrangement for a plate element of a fuel cell | |
EP0032372B1 (en) | Mixing valve with a noise reducing device | |
EP0214394B2 (en) | Diaphragm pump | |
EP3804000B1 (en) | Temperature-control device for individual battery cells which are combined into a module | |
DE3244120A1 (en) | Seal or connecting seal for sanitary mixing valves | |
DE102005017224A1 (en) | Sealing system for closing flaps | |
DE4037863C2 (en) | ||
EP2307775A1 (en) | Valve housing | |
DE10306876A1 (en) | Cold runner injection molding tool for vulcanizing elastomers has horizontally clamped wedges which close off runners in the cold runner block | |
EP1546585B1 (en) | Seal | |
EP3850684B1 (en) | Seal arrangement for sealing a frame part | |
EP3339699A1 (en) | Valve assembly with cage | |
DE202011102671U1 (en) | Device for sealing annular spaces | |
DE19727924B4 (en) | Valve, in particular check valve | |
DE102023133789A1 (en) | Drain stop valve, especially for a plug connection | |
WO2024083829A1 (en) | Automotive thermal management valve seal, and automotive thermal management valve | |
WO2024188987A1 (en) | Connection device, massage device having the connection device and method for mounting the massage device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210226 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20221011 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230606 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20231005 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502019009902 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20231115 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240216 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240315 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20240216 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240315 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240216 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240215 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240315 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240104 Year of fee payment: 6 Ref country code: CH Payment date: 20240301 Year of fee payment: 6 Ref country code: GB Payment date: 20240104 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240215 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20240213 Year of fee payment: 6 Ref country code: IT Payment date: 20240131 Year of fee payment: 6 Ref country code: FR Payment date: 20240222 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R026 Ref document number: 502019009902 Country of ref document: DE |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
26 | Opposition filed |
Opponent name: STIEBEL ELTRON GMBH & CO. KG Effective date: 20240815 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231115 |