EP0915303A1 - Heizer für umlaufende Flüssigkeit und Heizungselement dafür - Google Patents

Heizer für umlaufende Flüssigkeit und Heizungselement dafür Download PDF

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Publication number
EP0915303A1
EP0915303A1 EP98460049A EP98460049A EP0915303A1 EP 0915303 A1 EP0915303 A1 EP 0915303A1 EP 98460049 A EP98460049 A EP 98460049A EP 98460049 A EP98460049 A EP 98460049A EP 0915303 A1 EP0915303 A1 EP 0915303A1
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EP
European Patent Office
Prior art keywords
section
heating element
heating
intended
linear
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Withdrawn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
EP98460049A
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English (en)
French (fr)
Inventor
Francis Romero
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.)
Piscine Service Anjou
Original Assignee
Piscine Service Anjou
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 Piscine Service Anjou filed Critical Piscine Service Anjou
Publication of EP0915303A1 publication Critical patent/EP0915303A1/de
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—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 using electric energy supply
    • F24H1/102—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 using electric energy supply with resistance

Definitions

  • the present invention relates to a heater for heating of a circulating fluid and a heating element that comprises said device.
  • the invention applies in particular to the heating of the water of a basin, such as a relaxation equipped with pressurized water jets which are intended to create eddies.
  • a heating installation intended for a bath basin comprises, of a generally a heater a set of pipes from the basin for transporting, on the one hand, the fluid to be heated to the heater and, on the other hand, the fluid heated from said heater to said basin.
  • Of pumps mounted in series in said set of pipes allow circulation fluid to be heated, for example water.
  • a heater of the known type usually comprises a section of pipeline, for example of circular section, which is intended to be connected, by an upstream end, to an inlet pipe of said fluid and, by a downstream end, to an outlet pipe for the heated fluid.
  • Said apparatus includes also at least one heating element which is arranged in the longitudinal axis of said section.
  • Said heating element consists for example of an electrical resistance in the form of a serpentine whose turns extend substantially perpendicular to the longitudinal axis of the said section over most of the length and diameter of this last.
  • the two ends of said coil are provided projecting with respect to said turns, so as to be able to open from said pipe section into two orifices of the latter in the mounting position.
  • a major drawback of a heater comprising such a heating element resides in the complex structure of the latter, which makes it relatively difficult to install in the corresponding pipe section, especially in the case where the diameter of the turns of said heating element is close to that of said section.
  • An object of the present invention is to provide a heater intended for heating a circulating fluid, said apparatus comprising a section of pipe provided in its internal part with at least one heating element provided for heating said fluid flowing in said section, said heating element being intended to be mounted in said section so that said element opens out through one at least of its ends in an orifice in the side wall of said section for the purpose of supplying said heating element, and so that said element is practically supported on an area of said wall which is opposite to said orifice by with respect to the longitudinal axis of said section, which is such that said heating element is easily installed in said section.
  • Another object of the present invention is to provide a heating element intended to equip a heating device for heating a circulating fluid, said heating element being intended to be mounted in a section of pipe to heat the fluid circulating in said section, at least one of the two ends of said section heating element constituting a supply end intended to open from said section, which has a structure to facilitate its installation in said section.
  • a heating device is such that said element heater has an elastic structure allowing it to be compressed to bring said or each feed end into said section, when the introduction of said heating element into said section by one end thereof, and allowing it to relax when said or each feed end engages in said hole in the mounting position.
  • said or one of the ends supply of said heating element is connected, by an oblique part with respect to at said end, to a linear part which is intended to be mounted parallel to said axis and practically supported on said zone of the wall of said section.
  • the two ends of said element are intended to constitute supply ends which are intended to be contained in a plane perpendicular to said longitudinal axis of said section.
  • said heating element comprises, as an extension of said linear parts, two other linear parts which are also intended to be mounted parallel to said axis, said two others linear parts forming the two branches of an oblong convolution and one of them being intended to be mounted practically bearing on said zone of said wall.
  • said heating apparatus has two heating elements which are intended to lead respectively of said section adjacent to the two ends thereof.
  • a heating element As for a heating element according to the invention, it is such that it has a elastic structure allowing it to be compressed so that said or each feed end is less salient with respect to said element.
  • said or each end supplying said element is connected, by an oblique part with respect to said end, to a linear part which defines a direction substantially perpendicular to that of said or from each feed end.
  • the two ends of said heating element are for example provided for constitute supply ends which are provided symmetrical to each other by relative to the longitudinal plane of symmetry of said heating element.
  • said heating element comprises, in extension of said linear parts, two other linear parts which are parallel to said terminal linear parts, said two other linear parts forming the two branches of an oblong convolution.
  • a heating device for heating, in a pipe section 1 which it comprises and which is provided with at least one element heater 2, a circulating fluid (see arrow A in Fig. 1 for a direction of traffic, for example).
  • section 1 is provided with two heating elements 2.
  • each of the two heating elements 2 is designed to be inscribed substantially in an internal half-space in section 1 which is between one end 3 or 4 of the section 1 and the median transverse plane P of said section 1.
  • each of these elements 2 would be substantially inscribed in a longitudinal fraction of the internal space in section 1 equal to 1 / n .
  • the pipe section 1 essentially consists of a tube la rectilinear which has for example a circular section. It is scheduled to be tightly connected on the one hand to a fluid supply line by its upstream end 3 and, on the other hand, to a fluid outlet pipe by its downstream end 4 (these two pipes not characterizing the present invention, they are not shown).
  • the section 1 is made of a plastic material of the type polyamide.
  • Each heating element 2 is for example made up of a resistor electric mounted inside a bent tube (only a 5 or 6 end of this resistance is visible in Fig. 1), and it is intended to be supplied with electric current by through at least one of said ends 5 and 6.
  • the two ends 5 and 6 of the element 2 constitute electrical supply ends, and they are designed to open in a watertight manner outside the side wall 7 of section 1.
  • a heater according to the invention could comprise one or more heating elements 2 each consisting of said bent tube at the interior of which would circulate a heating fluid, not an electric current.
  • each heating element 2 comprises consists of a material thermally conductive which has satisfactory resistance to corrosion.
  • said tube is made of titanium.
  • section 1 comprises, in the immediate vicinity of each of its ends 3 and 4, a pair of orifices 8 which are respectively intended to receive the ends 5 and 6 of a heating element 2, in a transverse plane of the section 1 (only one orifice 8 of each of said pairs is visible in FIG. 1).
  • the section 1 also includes fixing means 9 provided for fixing sealingly each end 5, 6 of heating element 2 in the orifice 8 corresponding.
  • a heating element 2 according to the invention is bent so as to present several linear longitudinal portions 10 and 11 which are substantially parallel to each other, four in number in this example of production. These longitudinal parts 10 and 11 are provided to be substantially parallel to the longitudinal axis of symmetry X'X of the section 1 (see Fig. 1).
  • said parts 10 and 11 are not coplanar.
  • the two parts 10 which are respectively adjacent to the ends 5 and 6 of said heating element 2 are interconnected by an oblong convolution formed by the other two parts 11.
  • the two parts 10 define respectively with the two parts 11 of the planes P 1 and P 2 parallel to the location of the two branches 11 of said convolution.
  • a heating element 2 could have several oblong convolutions between its longitudinal parts 10.
  • Fig. 2 the two end parts 12 and 13 of element 2 which are linear and terminate respectively by said ends 5 and 6. These end portions 12 and 13 are contained in a plane ⁇ perpendicular to said longitudinal parts 10 and 11, and they are for example provided parallel to each other.
  • said ends 5 and 6 are symmetrical to each other outside the perimeter of said convolution, by relative to the longitudinal plane of symmetry ⁇ of element 2 which is parallel to said longitudinal parts 10 and 11.
  • end portions 12 and 13 of element 2 are provided at proximity of one of the ends 2a of said element 2, in this exemplary embodiment.
  • each heating element 2 inside the section of pipe 1 is illustrated in FIG. 1.
  • said oblique parts 14, 15 and said linear parts 10 of each element 2 adjacent to said ends 5, 6 give element 2 a elastic structure which allows it to pass from the unstressed position of FIG 2 to the aforementioned constrained position, and vice versa.
  • each heating element 2 in the direction of the axis X'X of the section 1 optimizes the heat exchange with the fluid to warm up.
  • each heating element 2 is mounted in the section 1 in such a way that one of its linear parts 10 and one of its parts linear 11 are practically supported on an area of the side wall 7 of said section 1 which is opposite to the corresponding orifices 8, with respect to the axis X'X of said section 1.
  • FIG. 3 There is shown in FIG. 3 said section 1 seen from above, and devoid of said heating elements 2 and fixing means 9.
  • the section 1 comprises, on the external face of the side wall 7 of tube 1a, a plate 16 intended to allow its attachment to the housing of a unit of heating control (not shown), for example.
  • a plate 16 intended to allow its attachment to the housing of a unit of heating control (not shown), for example.
  • a plurality of holes 16a opening out on either side of said plate 16 for the mounting of fastening members of said section 1 on said housing.
  • each orifice 8 provided for receiving the ends 5 and 6 of each element heater 2 are made in this plate 16, in such a way that they open out, on the one hand, inside said tube la and, on the other hand, above the surface of the plate 16 (the outer edge 8a and the inner edge 8b of each orifice 8 are respectively visible in Figs. 1 and 3).
  • each orifice 8 has a internal thread 17 provided for receiving said fixing means 9.
  • these fastening means 9 comprise a washer 18 of rubber in the form of a washer annular which is intended to be mounted on the bottom of the thread 17 of an orifice 8 so to enclose the terminal part 12, 13 of the heating element 2.
  • These means 9 further include a cable gland 19 intended to be mounted on said seal 18 and a nut 20 provided to surround said cable gland 19 and press it onto said seal 18.
  • the nut 20 is intended to be screwed into said thread 17, so that said press tow 19 compresses said seal 18 and thus ensures immobilization of the tip 5, 6 corresponding heating element 2 and the sealing thereof.
  • thermowell 23 is designed to plunge into the fluid during reheating circulating in section 1.
  • the other orifice 22 is provided for receiving in a fixed and sealed manner a another thermowell 24 intended to receive a safety probe (this probe is not also not shown).
  • thermowell 23 is provided with a seal 25 which is analogous to said seal 18 and which is intended to be mounted at the bottom of the thread 26 of said orifice 21.
  • This finger glove 23 has the shape of a hollow tube which is plugged at one of its ends 27, and it is intended to receive in its internal part said temperature probe.
  • Said thimble 23 is intended to be mounted on said seal 25, and a nut 28 is provided to be screwed into said thread 26 so as to compress said seal 25.
  • the other orifice 22 has an internal thread 29, at the bottom of which is intended to be mounted a seal 30 similar to said seal 25.
  • Said finger of glove 24 is similar to the previous one, and it is designed to receive in its part internal said safety probe.
  • This thermowell 24 is intended to be mounted on said seal 30, and a nut 31 is also provided to be screwed into said thread 29 of so as to compress said seal 30.

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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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)
EP98460049A 1997-11-07 1998-11-05 Heizer für umlaufende Flüssigkeit und Heizungselement dafür Withdrawn EP0915303A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9714266A FR2770895B1 (fr) 1997-11-07 1997-11-07 Appareil de chauffage destine au chauffage d'un fluide en circulation et element chauffant pour un tel appareil
FR9714266 1997-11-07

Publications (1)

Publication Number Publication Date
EP0915303A1 true EP0915303A1 (de) 1999-05-12

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ID=9513356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98460049A Withdrawn EP0915303A1 (de) 1997-11-07 1998-11-05 Heizer für umlaufende Flüssigkeit und Heizungselement dafür

Country Status (3)

Country Link
EP (1) EP0915303A1 (de)
CA (1) CA2220985A1 (de)
FR (1) FR2770895B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2280232A3 (de) * 2009-07-24 2014-10-22 Balboa Water Group, Inc. Heizgerät für die Badinstallation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866884A (en) * 1957-07-11 1958-12-30 Minier Eudoxie Georges Electric heaters for showers
CH407357A (de) * 1962-08-28 1966-02-15 Berliner Quarz Schmelze Gmbh Durchlauferhitzer zum Anschluss an Glasapparaturen für die Chemie
DE1565189A1 (de) * 1964-11-09 1970-02-05 Vof Wemag Elektrisch beheizter Heisswasserboiler
DE4235460A1 (de) * 1992-10-21 1994-04-28 Aweco Kunststofftech Geraete Heizvorrichtung für Haushaltsmaschinen und Verfahren zu deren Herstellung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866884A (en) * 1957-07-11 1958-12-30 Minier Eudoxie Georges Electric heaters for showers
CH407357A (de) * 1962-08-28 1966-02-15 Berliner Quarz Schmelze Gmbh Durchlauferhitzer zum Anschluss an Glasapparaturen für die Chemie
DE1565189A1 (de) * 1964-11-09 1970-02-05 Vof Wemag Elektrisch beheizter Heisswasserboiler
DE4235460A1 (de) * 1992-10-21 1994-04-28 Aweco Kunststofftech Geraete Heizvorrichtung für Haushaltsmaschinen und Verfahren zu deren Herstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2280232A3 (de) * 2009-07-24 2014-10-22 Balboa Water Group, Inc. Heizgerät für die Badinstallation

Also Published As

Publication number Publication date
FR2770895A1 (fr) 1999-05-14
CA2220985A1 (fr) 1999-05-07
FR2770895B1 (fr) 1999-12-31

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