EP0586677A1 - Dispositif de regulation thermique d'un fluide en circulation. - Google Patents
Dispositif de regulation thermique d'un fluide en circulation.Info
- Publication number
- EP0586677A1 EP0586677A1 EP93907897A EP93907897A EP0586677A1 EP 0586677 A1 EP0586677 A1 EP 0586677A1 EP 93907897 A EP93907897 A EP 93907897A EP 93907897 A EP93907897 A EP 93907897A EP 0586677 A1 EP0586677 A1 EP 0586677A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- plates
- thermal regulation
- heat transfer
- circuits
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000003507 refrigerant Substances 0.000 claims abstract description 6
- 239000013529 heat transfer fluid Substances 0.000 claims description 20
- 230000033228 biological regulation Effects 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000028016 temperature homeostasis Effects 0.000 description 1
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
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/121—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0077—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for tempering, e.g. with cooling or heating circuits for temperature control of elements
Definitions
- the subject of the present invention is a device for thermal regulation of a circulating fluid used in particular for regulating the temperature of tools or reactors.
- Such devices intended to regulate the temperature of a tool for molding plastic materials by means of a heat transfer fluid circulating under the action of a pump already exist.
- the temperature of the fluid can be increased by means of electric heating resistances or decreased by means of a second cold fluid passing through an exchanger, the assembly being able to be controlled by means of an electronic regulator connected to one or more thermocouples judiciously arranged on the path of the heat transfer fluid and by various safety devices.
- these devices include a cooler heater for the heat transfer fluid formed by a reservoir inside which is arranged an electrical heating resistor and a cooling fluid circuit consisting of a coil, the electrical resistors of course being arranged at the inside a shielded tube, as described in document BF - A. 2658332 (VULCANIC SA).
- control devices include a plate heat exchanger.
- a plate heat exchanger consisting of a stack of plates the fluid to be cooled and the cold fluid circulate in two different circuits without contact with each other, on either side of each plate.
- the regulating devices comprising such plate exchangers are bulky because the heating resistors must obviously be outside and quite spaced from the said exchangers, hence a large volume of the assembly and the need to have a large amount of circulating heat transfer fluid.
- the object of the present invention is to remedy these drawbacks by producing a device for regulating the temperature of a fluid by means of a heat exchanger constituted by a stack of corrugated or ribbed plates defining by means of seals arranged between said plates, alternating circuits of coolants and coolant.
- the device according to the invention is notably characterized in that the aforementioned stack is formed of a plurality of elementary assemblies each comprising in order: 5 - A refrigerant circuit
- the electrical resistance is embedded in a suitable material, for example ceramic, electrically insulating but heat conducting, which is shaped identically to the ribbed plates so that it 'insert without difficulty between said plates.
- a suitable material for example ceramic, electrically insulating but heat conducting, which is shaped identically to the ribbed plates so that it 'insert without difficulty between said plates.
- the electrically insulated electrical resistance can be embedded in a conductive material such as aluminum, the walls of which conform to the corrugated shape of the usual plates, which makes it possible to remove them.
- Another characteristic of the invention resides in that the alternating circuits of coolant and heat transfer fluid are defined by means of seals having a thickness sufficient to be compressed between two ribbed plates.
- the circuits of coolant and heat transfer fluid circulate in the stack of the ribbed plates by means of inlet and outlet orifices made in said plates so as to that the fluids cross them perpendicular to their plane.
- the regulating device according to the invention is compact while having a large heat exchange surface and requires only a small volume of heat transfer fluid, generally water or oil. It also makes it possible to have a very short response time, the fluid being brought quickly to the desired temperature.
- the fluid thus regulated may in particular be a circuit of heat transfer liquid circulated by a pump and serving to regulate the temperature of tools or reactors, for example from 5 ° to 250 ° C. Depending on the regulation and the flow rate envisaged, realizes an exchanger comprising a stack of more or less large plates between which are inserted a more or less large number of heating plates.
- FIG. 2 is a partial schematic view showing the integration of a heating plate between the plates of an exchanger according to the invention.
- FIG. 3 is a plan view of an exchanger plate with a heating plate according to line III-III of FIG. 2.
- Figures 4 & 5 are views, in partial section, of a stack of plates with a fluid circulation orifice.
- Figure 6 is a partial sectional view of a heating resistor having the same configuration as the ribbed plates.
- FIG. 7 is a diagram of a temperature control device according to the invention.
- FIG. 1 is a block diagram of a basic element intended to constitute the temperature control device according to the invention, we see that it is formed of a stack 1 of corrugated or ribbed plates 2 of a type known for this application, for example made of stainless steel. These plates define by means of seals, not shown, but conventional circuits 11-13 alternating heat transfer fluids (FC) and refrigerants (FR).
- FC alternating heat transfer fluids
- FR refrigerants
- This basic element comprises ribbed plates 2a between which pass, in order:
- a heating means 7 consisting of an electrical resistance 3 disposed between plates 4 of refractory material (ceramic).
- the electrically insulated electrical resistance (3) can be embedded in a conductive filling material such as aluminum, the walls of which conform to the corrugated shape of the usual plates, which advantageously makes it possible to remove them, resulting in substantial savings. .
- This exchanger is formed by the stacking of a number of plates 2 having in known manner scrolls, or corrugations 10 to force the circulating fluid to create turbulence; these plates 2 are provided with orifices 5 at each end to allow the entry and exit into their respective cavities of the heat transfer fluid
- FC coolant
- FR coolant
- the seal 6 is sectioned around orifice 5 every second time, as seen in FIG. 2.
- a heating means 7 which may consist of one or more electrical resistances 3, arranged in a refractory material in the form of a plate 4, all of the resistors being connected to an electrical source, not shown.
- a seal 8 of circular section is placed around the orifice 5 where the fluid circulates.
- This seal 8 can have any cross section, but its thickness must be greater than the thickness of the heating plate 4 plus the distance separating two plates 2, so that during assembly it is crushed and thus ensures perfect sealing. It must also be made of material resistant to the maximum temperature • envisaged.
- the cells 10 formed above and below the heating element 7 can be filled with refractory cement or a similar material which is a good conductor of heat.
- two insulating plates are arranged, conventionally held by tie rods.
- Figure 3 there is shown a plan view of the plates 2 along the line III-III of Figure 2, showing the orifices 5a for the passage of the coolant (FC) and those 5b of the coolant (FR) as well as the 'location of seals 8 and 6, the hatched central zone represents the location of the heating resistor 3. As can be seen, the active part of the heating elements is located below the seal 6.
- FIGS. 4 and 5 two alternative embodiments have been shown, showing the stack of plates 2 forming the exchanger of the device according to the invention, in which the seal 8 of the embodiment of FIG. 2 has been removed and replaced by a metal sleeve 20 welded to the plates 2b in order to ensure a perfect seal (fig- 4).
- the plates 2b have been shaped so that they can be welded at 61 around the opening 5 of the passage of the fluid 3 and at their periphery 60.
- FIG 6 there is shown another variant in which the electrical resistance 3 is embedded in a ceramic material 4, for example, insulating but good conductor of heat, which is shaped identically to the ribbed plates 2b so as to s 'insert without difficulty between said plates.
- An orifice 5 is provided for the passage of the fluid.
- This embodiment eliminates the seal 8.
- Figure 7 is a diagram of the temperature control device according to the invention. As can be seen in this figure, the device according to the invention is very simple.
- It comprises a plate exchanger 1 with its electrical heating resistance (s) 3, crossed on the one hand, by a fluid circuit 11 coolant (FC) in forced circulation by means of a pump 12 to the mold of an injection molding machine or to the reactor of an equipment, not shown, and on the other hand, by a water circuit 5 cold 13.
- FC coolant
- the heat transfer fluid circulates from the plate exchanger 1 to the tooling in a closed circuit and without an intermediate storage tank.
- Three solenoid valves 14, 15 and 16 are provided 10 to isolate the heat transfer fluid (FC) and limit leaks in the closed circuit 11 which goes to the mold or the reactor.
- the invention is also provided for taking
- the 20 device can, if necessary, regulate the temperature if the mold or the reactor does not include a temperature probe.
- the device according to the present invention can be used not only for the
- the thermal regulation device according to the invention is of an advantageous cost price. Furthermore, it is easily removable since the various elements that constitute it can be quickly replaced or modified, it allows an ease of maintenance because we have access to the surfaces thus allowing their cleaning; moreover, it is compact and has a reduced response time.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Central Heating Systems (AREA)
- Temperature-Responsive Valves (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9203701A FR2689227B1 (fr) | 1992-03-27 | 1992-03-27 | Dispositif de regulation thermique d'un fluide en circulation. |
FR9203701 | 1992-03-27 | ||
PCT/FR1993/000304 WO1993020389A1 (fr) | 1992-03-27 | 1993-03-26 | Dispositif de regulation thermique d'un fluide en circulation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0586677A1 true EP0586677A1 (fr) | 1994-03-16 |
EP0586677B1 EP0586677B1 (fr) | 1997-02-12 |
Family
ID=9428141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93907897A Expired - Lifetime EP0586677B1 (fr) | 1992-03-27 | 1993-03-26 | Dispositif de regulation thermique d'un fluide en circulation |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0586677B1 (fr) |
AT (1) | ATE148939T1 (fr) |
CA (1) | CA2108796A1 (fr) |
DE (1) | DE69308090T2 (fr) |
ES (1) | ES2097498T3 (fr) |
FR (1) | FR2689227B1 (fr) |
WO (1) | WO1993020389A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2775066A1 (fr) | 1998-02-18 | 1999-08-20 | Joel Bucaille | Plaque destinee a former un echangeur et procede d'utilisation |
US10451309B2 (en) | 2014-06-17 | 2019-10-22 | Alfa Laval Corporate Ab | Heater and a heat exchanger installation |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2712964B1 (fr) * | 1993-11-25 | 1995-12-29 | Vicard | Chaudière électrique pour liquide caloporteur en circulation dans un circuit ouvert ou fermé. |
SE516844C3 (sv) * | 2000-07-07 | 2002-04-17 | Alfa Laval Ab | Plattvärme/plattvärmeväxlare med elektriskt uppvärmbara skikt i dubbelväggiga plattelement |
DE102011003296A1 (de) * | 2011-01-28 | 2012-08-02 | Behr Gmbh & Co. Kg | Wärmeübertrager |
FR3023364B1 (fr) * | 2014-07-03 | 2016-08-19 | Valeo Systemes Thermiques | Echangeur thermique a double circulation et installation de gestion thermique correspondante |
DE102019213319A1 (de) * | 2019-09-03 | 2021-03-04 | Mahle International Gmbh | Wärmeübertrager |
DE102022106635A1 (de) * | 2022-03-22 | 2023-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Temperiervorrichtung für ein elektrifiziertes Kraftfahrzeug mit einer Kühleinrichtung und einer Heizeinrichtung |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1820458A (en) * | 1929-05-02 | 1931-08-25 | Jenkins Fredrick Alfred Edward | Electrical water heater |
US2852232A (en) * | 1953-03-30 | 1958-09-16 | Gen Precision Lab Inc | Heat exchanger |
GB1368271A (en) * | 1971-06-04 | 1974-09-25 | Nicolson T P | Electric heater for liquids and gases |
FR2209918A1 (en) * | 1972-12-13 | 1974-07-05 | Ventes Lyonnaise Et | Temp. control of heat transfer fluids - especially for moulding tools for plastics or metal alloys |
DE7730201U1 (de) * | 1977-09-29 | 1979-03-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Heizeinrichtung fuer durchlauferhitzer |
DD135559A1 (de) * | 1978-03-10 | 1979-05-16 | Vnii Komplexnykh Mash Dlya Zhi | Pasteurisier-und kuehlanlage zum bearbeiten fluessiger produkte |
DE3324901C2 (de) * | 1983-07-09 | 1986-02-20 | Hotset Heizpatronen und Zubehör GmbH, 5880 Lüdenscheid | Vorrichtung zur elektrischen Beheizung und zur Kühlung eines zentralen kunststofführenden Kanals einer Spritzgießmaschine |
DE3344650A1 (de) * | 1983-08-08 | 1985-02-21 | Peter Dr.-Ing. 8000 München Vinz | Temperaturstabilisierte, isotherme prozesskammer mit automatischer prozesswaermeregelung |
US4687907A (en) * | 1985-06-07 | 1987-08-18 | Pace, Incorporated | Heater device |
HU196265B (en) * | 1986-04-11 | 1988-10-28 | Rolitron Mueszaki Fejlesztoe K | Method and apparatus for producing flow of wanted temperature of a physiological solution, as well as temperature control method and a heating device for the previously mentioned method and apparatus |
FR2658332B1 (fr) * | 1990-02-09 | 1996-09-06 | Vulcanic Sa | Dispositif de regulation de temperature d'un outillage ou d'un reacteur au moyen d'un fluide caloporteur. |
DE4016381A1 (de) * | 1990-05-21 | 1991-12-05 | Kaltenbach & Voigt | Elektrische heizvorrichtung zum erwaermen relativ kleiner mengen eines mediums oder mehrere medien, z.b. luft und wasser, insbesondere fuer zahnaerztliche zwecke |
-
1992
- 1992-03-27 FR FR9203701A patent/FR2689227B1/fr not_active Expired - Fee Related
-
1993
- 1993-03-26 DE DE69308090T patent/DE69308090T2/de not_active Expired - Fee Related
- 1993-03-26 ES ES93907897T patent/ES2097498T3/es not_active Expired - Lifetime
- 1993-03-26 WO PCT/FR1993/000304 patent/WO1993020389A1/fr active IP Right Grant
- 1993-03-26 AT AT93907897T patent/ATE148939T1/de not_active IP Right Cessation
- 1993-03-26 EP EP93907897A patent/EP0586677B1/fr not_active Expired - Lifetime
- 1993-03-26 CA CA002108796A patent/CA2108796A1/fr not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9320389A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2775066A1 (fr) | 1998-02-18 | 1999-08-20 | Joel Bucaille | Plaque destinee a former un echangeur et procede d'utilisation |
US10451309B2 (en) | 2014-06-17 | 2019-10-22 | Alfa Laval Corporate Ab | Heater and a heat exchanger installation |
Also Published As
Publication number | Publication date |
---|---|
EP0586677B1 (fr) | 1997-02-12 |
WO1993020389A1 (fr) | 1993-10-14 |
ES2097498T3 (es) | 1997-04-01 |
ATE148939T1 (de) | 1997-02-15 |
FR2689227A1 (fr) | 1993-10-01 |
CA2108796A1 (fr) | 1993-09-28 |
FR2689227B1 (fr) | 1999-05-14 |
DE69308090D1 (de) | 1997-03-27 |
DE69308090T2 (de) | 1997-05-28 |
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