EP3224542A1 - Générateur de vapeur - Google Patents
Générateur de vapeurInfo
- Publication number
- EP3224542A1 EP3224542A1 EP15797976.6A EP15797976A EP3224542A1 EP 3224542 A1 EP3224542 A1 EP 3224542A1 EP 15797976 A EP15797976 A EP 15797976A EP 3224542 A1 EP3224542 A1 EP 3224542A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- flow
- groove
- heating surface
- steam
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 154
- 238000010438 heat treatment Methods 0.000 claims abstract description 74
- 238000001704 evaporation Methods 0.000 claims abstract description 29
- 230000008020 evaporation Effects 0.000 claims abstract description 28
- 230000005484 gravity Effects 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000013529 heat transfer fluid Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 46
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000009834 vaporization Methods 0.000 description 6
- 230000008016 vaporization Effects 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 239000012159 carrier gas Substances 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 2
- 208000032038 Premature aging Diseases 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/287—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in sprays or in films
Definitions
- the invention relates to the field of steam generators, and in particular to steam generators used in electrolysers of high temperature water vapor (EHVT).
- the invention relates more particularly to a device for converting a liquid into a vapor capable of providing a low steam flow rate, in particular a steam flow rate in particular between 10 g / h and 10 kg / h, and operating at constant pressure, in particular at atmospheric pressure or under a few tens of bar.
- a high temperature steam electrolyser (EVHT), an acronym for High Temperature Steam Electrolysis (HTSE), is an electrochemical device for the production of high temperature water vapor.
- EVHT high temperature steam electrolyser
- HTSE High Temperature Steam Electrolysis
- water vapor is introduced at the cathode of each cell supplied with electricity and an electrochemical reduction reaction of the water vapor leads to the formation of hydrogen on the cathode.
- an electrolyser In general, for a given operating point of the electrolyser, there is an electric current to be applied thereto and the flow rate of water vapor to be introduced into the electrolyser is calculated as a function of the intensity of the electric current. applied on the electrolyser.
- the current intensity can generally vary from 0 to 100% of the operating range of the electrolyser, it is therefore also necessary that the steam flow to be generated can also change linearly from 0 to 100% capacity, and be composed only steam.
- an electrolyser is a system that is very sensitive to inhomogeneities of current / gas flow, these homogeneities possibly causing premature aging of the electrolyser.
- Regulated flow steam generators are commercially available and are suitable for generating high flows of water vapor, namely several kg / h. Such a steam generator is generally composed of a reserve of pressurized steam coupled to a steam flow control valve to generate the amount of water vapor required, and this steadily. There are also commercially available steam generators, suitable for lower flow rates, especially between 10 g / h to 10 kg / h. Since the steam flow control valves used for large flow rates are not adapted for this flow rate range, one solution is to regulate the flow of liquid water entering the generator so that the water vapor generated after evaporation corresponds to the desired amount of steam output.
- these low-flow generators use a heating tube or a volume of which at least the bottom wall is heated, in which a controlled quantity of water is injected and heated until evaporation.
- a heating tube or a volume of which at least the bottom wall is heated in which a controlled quantity of water is injected and heated until evaporation.
- such generators cause "puffs" of steam and therefore overpressures.
- the difficulty in this solution is to control the heating of the water so as to avoid that a local boiling of the water pushes a part of the liquid in a zone too hot and is a source of boiling reaction of the boiling reaction.
- low-flow evaporators are generally only constructed to generate a single dry vapor flow, the electric power and the evaporation surface are studied only for a single operating point.
- other evaporators adapted for low flow rates use a carrier gas, for example nitrogen, which facilitates the spreading of the liquid and evacuate the steam produced.
- a carrier gas for example nitrogen
- the object of the present invention is therefore to propose a steam generator capable of producing, at constant pressure, a constant flow rate of vapor of a liquid, for example water, for the low flow rates of steam, and not requiring the use of carrier gas.
- the subject of the present invention is thus a constant-pressure steam generator capable of providing a regulated steam flow rate, including for low steam flows, in particular between 10 g / h and 10 kg / h, and for a constant pressure of 0.degree. to several tens of relative bar.
- this steam generator comprises:
- a liquid flow regulator configured to generate a quantity of liquid, for example water, at a given instant following a constant flow of liquid within a predetermined range of flow rates, the maximum flow rate of this flow range is less than or equal to 10kg / h;
- a device for converting the liquid into vapor operating at constant pressure comprising:
- a downwardly inclining heating surface in the enclosure defining a flow path that allows gravity flow of the quantity of liquid along the path from the inlet, and a rise in temperature of the quantity of liquid to be measured its flow along the path until the total evaporation of each mole of this amount of liquid before the end of said course, this heating surface being open so as to allow direct evacuation of the steam formed; a source of energy capable of supplying a sufficient quantity of energy to the heating surface to apply to the liquid a linear thermal power along the path, this linear thermal power being selected as a function of at least the maximum length of the path and the thermal power required to evaporate all of a maximum quantity of injected liquid according to the maximum flow rate of the flow range.
- the invention is the combination of three parameters:
- an external source of energy which can be electric (heating resistance) or thermal (heat transfer fluid);
- a path length adapted to obtain a complete evaporation of each mole of liquid injected before the end of the course.
- Such a steam generator thus ensures control of the vaporization of each quantity of water injected.
- This vaporization is reflected in particular by a continuous evaporation of the liquid as it flows until its total evaporation before the end of the course, without formation of puff or liquid flow on a mattress (or bed) of steam inside the enclosure.
- Such a control of the evaporation process in particular avoids the presence of stagnant water in the chamber, a necessary condition for obtaining a regularity of the output steam flow, and makes it possible to directly supply a steady flow of vapor substantially identical to the flow of liquid. injected as input.
- the regulation of the flow of water (and therefore of steam) is controllable by a user by means of a command button. For example, the user can adjust the setpoint of the flow rate of liquid to be injected at the inlet to obtain a substantially equivalent flow rate of steam output.
- Such a generator is thus capable of providing a constant dry vapor flow rate in the range 10 g / h to 10 kg / h, and this without using either carrier gas or electromechanical element, such as a steam flow valve for example.
- carrier gas or electromechanical element such as a steam flow valve for example.
- the manufacture of the generator and its operation are simplified.
- the maximum thermal power applied can be between 8 and 12 kW and the length of the path can be between 10 and 20m.
- the liquid is preferably injected dropwise.
- a flow rate of the order of 10 g / h corresponds to approximately 1 drop of 36 ⁇ l of liquid every 13 seconds.
- the conversion device may further comprise a groove extending along the path and in which is housed the heating surface, the groove allowing a liquid flow by gravity and capillarity along the path.
- the groove is sized to form a capillary channel, thus sucking the injected liquid.
- the gravity flow combined with the capillary flow allows in particular a uniform spreading of the liquid injected at the inlet in small flow, in particular drop by drop, over a large length of the heating surface throughout the course. It is thus formed a net of continuous water.
- the formation of drop train on the heating surface being avoided, the steam generation is therefore more regular and the output steam flow is constant even for a discontinuous water injection.
- This solution makes it possible in particular to produce a steady flow of steam from a non-linear injection of liquid, particularly drop by drop.
- the liquid inlet may also be dimensioned to further allow a capillary injection of the liquid directly into the groove and prevent the formation of drops at the end of the liquid water injection tube.
- the end of a liquid water injection tube is in this case placed in contact with the groove.
- the heating surface is disposed in an open groove on at least a lower portion of the path, preferably over the entire path, so as to allow the free escape of the steam generated.
- the groove is provided in its bottom of the groove described above.
- this groove is open over its entire length towards the inside of the groove, and preferably has dimensions adapted for capillary flow.
- the main groove has a height of 8.5mm for a depth of 17mm and the groove has a height and width 3.5mm allowing the matting of the heating surface.
- the walls of the groove are preferably inclined, the inclination of each of the walls forming with the horizontal an angle inclination (a) greater than or equal to 30 ° C.
- the angle formed between the wall in contact with the circulating liquid, in the direction from the bottom of the groove to the opening of the groove, and the direction of gravity is non-zero and preferably lower or equal to 60 ° C. It ensures that the circulating liquid remains in contact with the heating surface which is preferably disposed closer to the bottom of the groove.
- the groove is preferably made of a neutral material for the liquid, especially stainless steel particularly appreciated for its corrosion resistance.
- this groove is advantageously helically shaped when the compactness is sought.
- the heating surface may be located at the outer periphery of a cylinder.
- the conversion device can thus be formed of a threaded part, the thread forming the groove.
- the part may be a cylinder extending in the direction of gravity and the periphery of which is machined the helical groove.
- the helical groove preferably has a width, a depth, a length and a pitch suitable for the total evaporation of the injected liquid before the end of the path combined with the linear thermal power applied to the heating surface, as explained above.
- the opening of the groove is preferably dimensioned to ensure a direct evacuation of the vapor and limit an accumulation of steam above or in the groove which would be likely to disturb the heating or the gradual rise in temperature of the liquid .
- the steam does not push the liquid to an area too hot to avoid pressure puffs.
- the vapor can evacuate substantially radially without disturbing the flow of water.
- the opening of the groove can be advantageously oriented in a direction different from that of gravity.
- the enclosure may be formed of a thermally insulating outer envelope and a metal inner envelope maintained at a predetermined temperature, for example between 150 and 250 ° C for steam generation at atmospheric pressure, so as to avoid condensation on the inner walls of the enclosure.
- This internal envelope will be sized and qualified to operate up to the maximum pressure defined in the design of the steam generator.
- this metal inner envelope is designed to operate at a pressure above atmospheric pressure or in the range of atmospheric pressure to a few tens of bar.
- the pressure in the chamber is that of the steam.
- the inner casing has a diameter of 220 mm for a height of 470 mm sheet 2 mm thick.
- the spiral with a linear length of 10 m is machined on a 200 mm diameter and 400 mm high tube, the distance between the opening of the groove and the inner wall of the enclosure being 8 mm.
- the volume in which the steam is present is about 6 liters.
- the thermal power of the heating surface can be regulated via, for example, a temperature sensor capable of measuring the temperature at at least one point of the heating surface coupled to an energy regulator to be supplied to the surface. heating according to the measured temperature and a set temperature generally greater than or equal to 100 ° C.
- a coolant for example an oil
- This tube can be put in place of the electrical resistance, for example by the same matting technique. Knowing the heat capacity of the coolant, it is possible to calculate the nominal temperature ensuring that the maximum flow of liquid can be evaporated. Moreover, to ensure a regular flow of evaporation, it is advantageous to circulate the heat transfer fluid in the opposite direction to the flow of liquid water.
- the described device allows to produce dry steam, it is also possible to introduce, if necessary, one or more gases to achieve a mixture. In this case, a preheating of these gases is necessary before their introduction into the steam. This preheating can be obtained for example by a simple technique which consists of welding the spiral gas line on the generator enclosure.
- the invention also relates to a device for converting liquid to constant pressure steam having all or part of the characteristics defined above.
- the device for converting liquid to steam is capable of providing a regulated flow rate of steam, in particular between 10 g / h and 10 kg / h, for a constant pressure of 0 to several tens of relative bar.
- this device for converting liquid to constant pressure steam comprises:
- a downwardly sloping heating surface defining a flow path allowing the quantity of liquid to flow along the path by gravity from the inlet, and a rise in temperature of this quantity of liquid injected as it flows over the along the route until the total evaporation of each mole of this amount of liquid before the end of the course.
- the heating surface is opened to allow direct evacuation of the formed vapor, and the linear thermal power applied by this heating surface to the liquid throughout the course is selected based on at least the maximum length of the course and the thermal power required to evaporate all of a maximum quantity of injected liquid according to the maximum flow rate of the flow range.
- the generation of steam or the conversion of liquid to vapor at atmospheric pressure or at a constant pressure with the generator or the device described above comprises in particular:
- FIG. 1 is a schematic representation of a device for converting a liquid into a vapor according to one embodiment of the invention in which the groove is helical;
- FIG. 2 is a partial diagrammatic representation in axial half-section of the helical groove of the steam generator of FIG. 1;
- FIG. 3 is a schematic representation of the steam generator according to one embodiment of the invention.
- the steam generator according to one embodiment of the invention is illustrated in FIG. 3 and notably comprises:
- the liquid flow controller 6 is configured to provide the conversion device 10 with a quantity of liquid 50 at a given instant at a constant flow rate, for example between 10 g / h and 10 kg / h.
- the flow of liquid to be generated is set by the user by means of a set point 60 and corresponds substantially to the flow rate of steam to be produced by the conversion device 10.
- the liquid water flow regulator 6 may be a commercial regulator, for example a thermal mass flow controller or Coriolis.
- the device 10 for converting the liquid into vapor is configured to evaporate all of the injected liquid 50 and to generate steam 51 at a regular flow rate corresponding substantially to the injected liquid flow rate.
- the structure of the liquid conversion device 50, especially water, steam 51 is described below.
- This conversion device consists in particular of an enclosure 4 provided with a vapor outlet 42 and a liquid inlet 40 intended to be coupled to the water flow regulator 6.
- the enclosure 4 is formed in particular of an outer casing 43 thermally insulating and an inner casing 44 which makes it possible to retain the vapor produced in the enclosure 4 and to channel this vapor on the vapor outlet 42 so that it can be used.
- This inner envelope 44 is in particular of metal material and is heated to be maintained at a sufficient temperature, for example 200 ° C, to prevent the appearance of condensate on the inner walls of the enclosure.
- This envelope 44 also serves to resist the maximum operating pressure of the steam generator. For example, for a production flow rate of 0 to 5 kg / h at atmospheric pressure, the inner casing has a diameter of 220 mm and a height of 470 mm made of 2 mm thick sheet metal.
- the internal volume of the chamber 4 being in connection, via the vapor outlet 42, with the outside, the internal pressure of the chamber is consequently adjusted by the external pressure.
- the output 42 is connected directly to the input of an electrolyser operating at atmospheric pressure, so that the internal pressure of the chamber 4 is equal to the atmospheric pressure, and therefore substantially constant.
- the external pressure which sets the internal pressure of the chamber, may be different, especially higher.
- a pressure regulator can be provided to directly regulate the internal pressure of the chamber to obtain a substantially constant pressure.
- the internal pressure of the chamber remains substantially identical to that of the pressure of the steam produced.
- This groove 2 is in particular machined at the outer periphery of a part 1, a stainless steel cylinder for example, which rests on a base 41 support bracket 4.
- This support base is in particular horizontal, that is to say substantially perpendicular to the direction G of gravity.
- This groove has a downward slope, for example between 1 and 4%, which allows a flow by gravity of the liquid water 50 from the inlet 40 of liquid.
- a wired 3-wire electric heating element for example of round section, serving as a heating surface, is inserted into the groove 2.
- This heating resistor 3 is positioned in the groove, and in particular near the bottom of the groove, so as to extend all along the throat to define a flow path of the liquid.
- This heating resistor 3 is powered by the source energy regulator 7 and is also intended to be brought into contact with the circulating liquid to bring it up to its evaporation temperature.
- the contact surface between the heating resistor and the liquid must be large. According to one embodiment comprising an electrical resistance of 10 m long and 3.5 mm in diameter, the contact surface is estimated at 550 cm 2 .
- this groove 2 comprises in particular a groove bottom to the opposite of an opening and inclined walls.
- the opening is oriented so as to allow a substantially radial evacuation of the steam produced.
- the angle of inclination formed between the horizontal H and each of the walls 20 of the groove in the direction from the groove bottom to the opening is at least 30 °. This inclination makes it possible to direct the liquid towards the bottom of the groove and to ensure a permanent contact of the circulating liquid with the heating surface.
- the bottom of the groove 2 also has a groove 21 in which is inserted the heating resistor.
- This groove 21 is open and extends in the extension of the groove.
- the groove 21 has dimensions, in terms of width and depth, smaller than those of the groove, and is especially sized to allow insertion by matting of the heating resistor and capillary flow of the liquid in the groove. For example, for a heating surface of 3.5 mm diameter and a flow range of 0 to 5 1 / h, the groove 2 has a height of 8.5 mm for a depth of 17 mm and the groove 21 has a height and a 3.5mm width for wired electrical resistance matting 3.
- the capillary flow is particularly advantageous in the case of a low liquid flow, and in particular in the case where the liquid is injected drop by drop.
- the capillary flow makes it possible in fact a uniform spreading of the liquid to be evaporated on the heating surface, without formation of drop train, ensuring a regularity of the output steam flow.
- the water can also be injected by capillarity into the groove.
- the liquid inlet may be a stainless steel tube positioned in contact with the groove and the heating resistor and dimensioned to allow capillary suction of the liquid in the groove, without the formation of droplets.
- the liquid inlet may be a stainless steel tube positioned in contact with the groove and the heating resistor and dimensioned to allow capillary suction of the liquid in the groove, without the formation of droplets.
- the heating resistor is disposed closer to the bottom of the groove and the liquid flows only by gravity.
- the wire heating resistor may be flat inserted for example in the bottom of the groove or in the groove, or a layer of a metal material covering one or more walls of the groove and / or the groove.
- the heating resistor 3 is also coupled to the energy source 7, for example a regulated voltage source (not shown), to provide the energy necessary for the heating of the water during its descent along the throat to 'to its evaporation.
- the steam 51 produced is then discharged at the periphery via the opening of the groove without disturbing the flow to ensure regularity in the operation of the heater.
- the heating resistor is calibrated so as to ensure a rise, preferably regular, temperature of a given amount of water in the groove until it evaporates completely before the end of the course.
- the electric power to be supplied to the heating resistor can be optimized according to the quantity of water introduced, so as to distribute the best water over the entire length of the groove and to have a very stable steam production with a minimal energy expenditure. This optimization can be done by calculating the energy needed to heat up the water and then its vaporization, while taking into account heat losses.
- the power of the electrical resistance will preferably be chosen with a minimum of 30% additional heating capacity to have a better reactivity during changes in evaporation guidelines.
- the length of this resistance is calculated so as to limit the linear thermal power within the limit of the efficiency of linear heat transfer to liquid water, preferably in the range 0.5 to 1 kW / m.
- the recommended length for this electrical resistance is therefore between 10 and 20 m.
- the method for calculating the linear thermal power consists in particular of:
- the minimum total heating power P needed to vaporize a quantity of liquid may in particular be obtained by the sum of the energy Pi necessary to heat this quantity of liquid to its boiling point, the energy P 2 to achieve the actual vaporization and energy P 3 to overheat the steam produced:
- Cp 3 the constant heat capacity at constant pressure of the steam [J / (kg.K)]; ⁇ 3 the temperature difference between the final temperature to be reached and the initial temperature [K].
- this relationship can be weighted by taking into account possible heat losses, preferably by adding a minimum margin of 30% on the total power.
- the water to be evaporated is introduced into the groove via the liquid inlet and flows into the groove by gravity and / or capillarity. The water heats up during its descent until it evaporates.
- the steam is evacuated at the periphery of the groove without causing any disturbance to the flow, which guarantees the regularity of operation. According to one variant, it is possible to provide a regulation of the thermal power supplied by the heating resistor.
- the energy source 7 can be regulated according to one or more parameters measured or supplied during the operation of the generator.
- a temperature sensor for example a thermocouple, for example measures the temperature 71 of the heating resistor at the end of the trip.
- the voltage to be supplied to the heating resistor 70 is then adjusted as a function of this measured temperature and a set temperature corresponding to the thermal power required to vaporize the water.
- a heating element has been described as heating element.
- the filamentary resistance is replaced by a tube traversed by a coolant, for example oil, the coolant being heated so as to provide a thermal power as described above.
- the evaporator proposed in the present application is adapted to generate low steam flow, including flow rates of between 10 g / h and 10 kg / h, and does not require the use of carrier gas.
- the proposed evaporator makes it possible to generate dry steam at a constant pressure, and the desired output steam flow rate is simply obtained by regulating the inlet liquid flow rate.
- the liquid injection by drop and the generation of a steady flow of steam it is possible to combine the liquid injection by drop and the generation of a steady flow of steam.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1461678A FR3029270A1 (fr) | 2014-11-28 | 2014-11-28 | Dispositif de conversion d'un liquide en vapeur |
PCT/EP2015/076774 WO2016083190A1 (fr) | 2014-11-28 | 2015-11-17 | Générateur de vapeur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3224542A1 true EP3224542A1 (fr) | 2017-10-04 |
EP3224542B1 EP3224542B1 (fr) | 2020-09-16 |
Family
ID=53008586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15797976.6A Active EP3224542B1 (fr) | 2014-11-28 | 2015-11-17 | Générateur de vapeur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3224542B1 (fr) |
DK (1) | DK3224542T3 (fr) |
FR (1) | FR3029270A1 (fr) |
WO (1) | WO2016083190A1 (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR595069A (fr) * | 1925-03-13 | 1925-09-25 | Producteur de vapeur par chauffage électrique | |
DE9101758U1 (fr) * | 1991-02-15 | 1992-03-12 | Hess, Hans Peter, 4830 Guetersloh, De | |
EP0835057A1 (fr) * | 1996-03-12 | 1998-04-15 | Aktiebolaget Electrolux | Generateur de vapeur |
DE202010010108U1 (de) * | 2010-07-09 | 2010-10-14 | Zweita International Co., Ltd. | Dampferzeuger |
-
2014
- 2014-11-28 FR FR1461678A patent/FR3029270A1/fr not_active Withdrawn
-
2015
- 2015-11-17 EP EP15797976.6A patent/EP3224542B1/fr active Active
- 2015-11-17 DK DK15797976.6T patent/DK3224542T3/da active
- 2015-11-17 WO PCT/EP2015/076774 patent/WO2016083190A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FR3029270A1 (fr) | 2016-06-03 |
DK3224542T3 (da) | 2020-09-28 |
WO2016083190A1 (fr) | 2016-06-02 |
EP3224542B1 (fr) | 2020-09-16 |
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Legal Events
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