CN103906972A - Liquid heating device - Google Patents
Liquid heating device Download PDFInfo
- Publication number
- CN103906972A CN103906972A CN201280046540.2A CN201280046540A CN103906972A CN 103906972 A CN103906972 A CN 103906972A CN 201280046540 A CN201280046540 A CN 201280046540A CN 103906972 A CN103906972 A CN 103906972A
- Authority
- CN
- China
- Prior art keywords
- stopper
- scaler
- fluid
- sleeve
- firing equipment
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 title claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000010304 firing Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004899 motility Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
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
- F22B1/282—Methods of steam generation characterised by form of heating method in boilers heated electrically with water or steam circulating in tubes or ducts
-
- 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
- F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/006—Feed-water heaters, i.e. economisers or like preheaters with heating tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Resistance Heating (AREA)
Abstract
The invention relates to a device (1) for heating liquid, or even for generating steam, receiving a fluid, particularly water (E), in liquid form at its inlet (5), and ejecting this fluid heated up or in gaseous form at its outlet (6), comprising a heating means (2) of cylindrical exterior shape positioned inside a sleeve (3) having a longitudinal axis (4). It comprises a scraper (7) that fits onto the heating means (2) in such a way as to scrape it in the event of movement along said longitudinal axis (4), a stopper (8) fitted snugly between the heating means (2) and the sleeve (3) in order to stopper the passage in at least one position of said stopper (8), and a spring (9), said scraper (7), said stopper (8) and said spring (9) being configured so that an increase in the pressure of the incoming fluid causes the scraper (7) and the stopper (8) to move along said longitudinal axis (4) so that said stopper (8) is shifted to a point where the space between the heating means (2) and the sleeve (3) is such that it allows said fluid to pass, and so that a reduction in the pressure of the incoming fluid causes a shift in the opposite direction by virtue of said return spring (9).
Description
Technical field
The present invention relates to heating liquid field, relate to or rather water heating and steam generation field.
The invention particularly relates to but be not limited only to: household electrical appliance of flatiron, coffee pot and other equipment and so on and need to carry out housed device or the industrial instrument that effects on surface is cleared up with steam spray regime.
Described equipment can be preferentially use in the scope of removing surface and the stain of deoiling, such as, include but are not limited to textile, wall or window or use within the scope of family expenses, especially deoil aspect stain and use at textile.
As everyone knows, this kind equipment can be by the water in the pressure-bearing that contains steam or non-pressure container, discharge of steam to the mode of opening part is transformed by pipeline; On the whole, need to be equipped with pipe.
More specifically, the present invention relates to all spectra of fluid heating, there is field in water and steam especially.
Background technology
We know, water heating apparatus can produce steam equally.Wherein especially comprise a set of resistance wire being arranged on shell or on calandria, described resistance wire is sleeve shaped.Therefore,, under the condition that can regulate water well, can allow water pass through from a side above between outer sleeve and resistive heater.Power and water resistance silk contacts rear heating, then can below leaving with water vapour form, before a side, convert water vapour to.
First shortcoming of these equipment is, the flow of hot water depends on the heating efficiency of water supply flow and resistance wire.It should be noted that as wanted and make up this shortcoming, require liquid must be along calandria inside to flow in the mode of non-rectilinear track from top to bottom, just like this can be at the inner barrier that produces of calandria.But this type of design has certain restricted, especially need to produce these barriers at calandria wall, cost is comparatively expensive like this, because require resistance wire is installed on calandria, and can produce performance loss.
Another shortcoming of steam generator is that the easy incrustation of resistive heater especially contains the easier incrustation of calcareous situation at water.Along with continuous accumulation calcareous on resistive heater, its efficiency of heating surface can reduce after operation a period of time, after heating, no longer can convert water to water vapour.Or the flow of input discharge and generation water vapour can reduce in unacceptable mode.Now, must after dismounting equipment, can clean its resistance wire.And,, be also not easy its removal while being accumulated to a certain degree when calcareous.
It should be noted that according to the file such as EP0514271, can recognize, be wrapped in the element on resistance wire, can there is motility along with the motion of liquid, thereby can strike off the incrustation on described resistance wire.But the efficiency of this type of erection unit can decline soon, because it is very limited to strike off scope, but also be subject to the impact of twined element motility can be in the vertical with axial rotation time.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming, the solution that can improve heating liquid performance within the scope of very limited cost is provided; And in the process that this solution is upgraded, can automatically remove the dirt on resistive heater, thereby can operate the longer time.
At this point, the present invention relates to a kind ofly for heating liquid liquid device, particularly hot-water heating system, its composition comprises that outside is cylindrical, be arranged in sleeve and have the firing equipment of the longitudinal axis." cylindrical " word is interpreted as at this, from mathematics aspect, refers to and is that in plane that the longitudinal axis is vertical, its cross section equates with the cross section in this axle longitudinal extent; In addition, this cross section can also be rounded, rectangle, square or other shapes.
This equipment especially comprises therein: in the space that firing equipment and sleeve interior surface are separated, be wrapped in the element on firing equipment; This element designs according to producing the mode of disturbing to fluid mobile in described space.
This equipment especially comprises the element designing according to the mode of can fluid recirculation disturbing; This equipment comprises that is arranged on a scaler that strikes off operation on heater along the described longitudinal axis according to motion conditions, one fastening is arranged between firing equipment and sleeve so that the stopper that at least can stop up passage in the position of described stopper, and one piece of spring; Described scaler, stopper and spring will be configured according to the mode that can reach following object: increase fluid pressure, can move along the described longitudinal axis between scaler and stopper, so that described stopper is moved between heater and sleeve as allowing fluid flow in the spatial point of vacateing; And reduction fluid pressure can in the opposite direction be subjected to displacement along described elastic recoil spring.Just because of adopt this type of arrangement, firing equipment just can carry out full-automatic prune job termly.According to its other features:
Described scaler can design according to the mode that can clear up firing equipment outer surface and also can clear up sleeve interior surface;
Described scaler outward appearance twist in non-seam type bung flange, can allow fluid move between bung flange, until enter stopper like this.
Described stopper can be in seam type spiral outward appearance twist.
Described scaler and described stopper can as a whole element two parts, thereby can play the object of simplification device;
Described scaler, described stopper and described spring can as a whole element three parts, thereby can play the object of further simplification device;
Described scaler, described stopper and/or described spring can be annular in the plane vertical with the described longitudinal axis, like this can be so that these elements or one of them element are manufactured; Its shape can be rectangle ring-type or square ring-type or other shapes;
Described scaler is the profile of the spirality winding with rectangle or square cross section element.
In simple version, the present invention can use Simple type spring, is entangled on resistance wire, so that allow by force fluid flow along helical trajectory.
In comparatively complicated version, if can strike off, spring has specific characteristic.
Therefore, the present invention relates to an external cylindrical firing equipment Automatic clearance flow process that uses device of the present invention; And it comprises the steps:
Fluid enters in liquid mode
Heat this fluid until produce water vapour, can increase like this fluid volume of described device portal side
Move stopper and scaler along the longitudinal axis, so that firing equipment is struck off to operation for the first time, until fluid flows to outlet flow locations, can produce pressure drop at device portal like this
At mobile stopper in the other direction until it is again closed, thereby firing equipment is struck off for the second time
Other features and advantages of the present invention will be described in detail with reference and nonrestrictive way of example in exemplifying embodiment.
Accompanying drawing explanation
For ease of explanation content, can be with reference to following accompanying drawing, wherein:
-Fig. 1 is that device of the present invention is at the vertical section of first position schematic diagram;
-Fig. 2 is that device described in Fig. 1 is at the vertical section of second position schematic diagram;
-Fig. 3 is the schematic cross section of installing described in Fig. 1
-Fig. 4 is the device schematic cross section according to second embodiment of the present invention;
The specific embodiment
According to the content of appended Fig. 1 to Fig. 4, the present invention relates to a kind of fluid heater 1, and be a kind of steam generation type heater, its composition comprises the resistive heater 2 being arranged on the calandria that is sleeve 3 types, has the longitudinal axis 4.Device 1 is connected with its entrance 5 in water out E position, and exports 6 from it and spray the water vapour V producing.
It should be noted that calandria 3 can not install firing equipment equally in the specific embodiment.
Device 1 comprises that one is non-seam type helical form scaler 7, helical stopper 8 and one piece of spring 9 in non-seam type bung flange.Fluid, i.e. water E, can progressively change into gas shape, so that obtain steam V, thus can enter in the space between resistive heater 2 and sleeve 3 by entrance 5.Fluid enters in the bung flange between scaler 7, until enter the bung flange of stopper 8.Herein, fluid, by blocked, flows and cannot pastly export 6 places.Because under the effect of heating and water E evaporation, the volume of fluid will increase, the pressure producing on stopper 8 can increase equally to some extent, can cause like this it to move toward outlet 6 places, and spring 9 can be compressed completely.In the time that displacement is enough to allow fluid flow (referring to Fig. 2), the fluid that has become water vapour V can be rejected to outlet 6 positions that can use described steam V according to the mode of expecting.Meanwhile, in entrance 5 one sides, fluid is excluded, and pressure reduces again, moves toward outlet 6 directions thereby no longer can promote stopper 8.Compressed spring 9, by released, thereby can allow stopper 8 and scaler 7 return to its original position; And start to re-start similar circulation.If the steam V pressure of each motion bout entrance 5 one side of carrying out at stopper 8 can increase, steam V is being discharged complete and spring 9 is applied after operation power toward outlet 6, scaler 7 can be vertically moved the cylindrical outer surface of resistive heater 2 is cleared up by it.
" cylindrical " word is interpreted as at this, and from mathematics aspect, the profile of firing equipment 2 should be cylindrical in the same cross-wise direction of carrying out length travel.Can rounded cylindrical (referring to Fig. 3) or square cylinder (referring to Fig. 4) or present other geometric shapes, so that can there is identical profile in the gamut of firing equipment 2; In the time that scaler 7 moves along the longitudinal axis 4, can be consistent with firing equipment 2 in its moving range.
In the embodiment shown in Fig. 1 to Fig. 4, the available cross-section of the cross section of scaler 7 completely and between resistive heater 2 and sleeve 3 is consistent.This implementation method illustrates that its advantage is, scaler 7 can be vertically moved at every turn the inner surface of sleeve 3 is cleared up by it.In the embodiment of not enumerating, this scaler 7 can be consistent with the profile of firing equipment 2 equally, but can keep certain distance with sleeve 3.Therefore, fluid can flow by reserved free space, and directly encounters stopper 8.In fact, incrustation, especially calcareous incrustation, on hotter surface, the incrustation that firing equipment 2 surfaces produce can be more.Therefore can select only Automatic clearance to be carried out in this surface, and without leaving scope of the present invention.
The institute that stopper 8 should be able to stop up between firing equipment 2 and sleeve 3 has living space 5, so that no matter whether stopper 8 moves, all can stop that fluid flows toward outlet 6 directions, thereby, also can stop that scaler 7 cannot operate toward outlet 6 directions it.
In previously described embodiment, sleeve 3 is cylindrical equally, but longer than firing equipment 2 length, so that can be stopper 8 vacating spaces, thereby allow fluid flow.Under the embodiment of not setting forth in the preceding article, sleeve 3 can export 6 directions in the past and widen, so that in the time that stopper 8 arrives sleeve 3 and widens on axis, fluid can be got rid of.
In addition, under described embodiment, the external diameter of spring 9 is identical with external diameter and the internal diameter of stopper 8 and scaler 7 with internal diameter in the preceding article.Under other embodiments, spring 9 can have different profiles, so that can allow stopper 8 bring into play its reactivation in its its original orientation, thus impel scaler 7 to clear up firing equipment 2.
Of the present inventionly a little especially be, can where necessary, can regularly automatically clear up firing equipment 2 and sleeve 3 inside.Impel calcareous cannot accumulation, thereby be able to the effect of constant heating.
It should be noted that, can pay the utmost attention to, scaler 7 is made up of the spirality winding being containing square or rectangular cross section element so that two place's ribs 70 of firing equipment 2 and 71 and two place's ribs 72 and 73 of sleeve 3 one sides can produce it and strike off function.
From favourable aspect, as mentioned before, scaler 7, stopper 8 and spring 9 are all the parts that are the integral member of spring profile; This element is wrapped on firing equipment, has the respective regions of the specific characteristic corresponding with different piece.
Although particular embodiment is set forth in the present invention, still these elements are not limited in the various modification change conditions of profile, material and combination, thereby make it not deviate from scope and spirit of the present invention.
Claims (10)
1. a liquid heating (1), especially water (E) heater, can be received in its entrance (5) position and be liquid fluid, especially water (E), and at its outlet (6) position ejection this fluid that reheated or that be gas form, its composition comprises that outside is cylindrical, be arranged in sleeve (3) and have the firing equipment (2) of the longitudinal axis (4); It is characterized in that, on the one hand this equipment is especially included in the space that firing equipment and sleeve (3) inner surface are separated therein, be wrapped in the element (7) on firing equipment (2), this element designs according to producing the mode of disturbing to fluid mobile in described space; Its composition comprises that one is arranged on heater according to the corresponding scaler that strikes off operation of motion conditions enforcement on the longitudinal axis (4), also comprise on the other hand a stopper (8), described stopper is fastening to be arranged between firing equipment (2) and sleeve (3) so that at least can stop up passage in the position of described stopper (8), also comprises on the other hand one piece of spring (9); Described scaler (7), stopper (8) and spring (9) will be configured according to the mode that can reach following object: increase fluid pressure, can move along the described longitudinal axis (4) between scaler (7) and stopper (8), so that described stopper (8) is moved between heater and sleeve (3) as allowing described fluid flow in the spatial point of vacateing; Reducing fluid pressure can in the opposite direction be subjected to displacement along described elastic recoil spring (9).
2. device according to claim 1 (1), is characterized in that, described scaler (7) can configure to clear up the outer surface of firing equipment (2), can clear up again the inner surface of sleeve (3).
3. device according to claim 2 (1), is characterized in that, described scaler (7) outward appearance twist in non-seam type bung flange.
4. according to the device described in claims 1 to 3 (1), it is characterized in that described stopper (8) outward appearance twist in seam type bung flange.
5. according to the device described in claim 1 to 4 (1), it is characterized in that, described scaler (7) and described stopper (8) are two parts of an integral member.
6. according to the device described in claim 1 to 5 (1), it is characterized in that, described scaler (7), described stopper (8) and described spring (9) are three parts of an integral member.
7. according to the device described in claim 1 to 6 (1), it is characterized in that, described scaler (7), described stopper (8) and/or described spring (9) are annular outward appearance in the plane vertical with the longitudinal axis (4).
8. according to the device described in claim 1 to 7 (1), it is characterized in that described scaler (7), described stopper (8) and/or described spring (9) in the plane vertical with the longitudinal axis (4), be rectangle ring-type or square ring-type.
9. according to the device described in claim 1 to 9 (1), it is characterized in that, described scaler (7) is the profile of the spirality winding with rectangle or square cross section element.
10. a use is according to the external cylindrical firing equipment Automatic clearance flow process of the device described in claim 1 to 9 (1); And it comprises the steps:
Fluid enters in liquid mode
Heat this fluid until produce water vapour, can increase like this fluid volume of described device (1) entrance (5) side
Along the mobile stopper of the longitudinal axis (4) (8) and scaler (7), so that firing equipment (2) is struck off to operation for the first time, until fluid flows to outlet (6) flow locations, can produce pressure drop at device (1) entrance (5) like this
At mobile stopper (8) in the other direction until it is again closed, thereby firing equipment (2) is struck off for the second time.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1156745A FR2978528B1 (en) | 2011-07-25 | 2011-07-25 | LIQUID HEATING DEVICE |
| FR1156745 | 2011-07-25 | ||
| PCT/FR2012/051760 WO2013014390A2 (en) | 2011-07-25 | 2012-07-24 | Liquid heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103906972A true CN103906972A (en) | 2014-07-02 |
Family
ID=46639629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280046540.2A Pending CN103906972A (en) | 2011-07-25 | 2012-07-24 | Liquid heating device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20140308027A1 (en) |
| EP (1) | EP2737249B1 (en) |
| CN (1) | CN103906972A (en) |
| FR (1) | FR2978528B1 (en) |
| WO (1) | WO2013014390A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813375A (en) * | 2015-12-01 | 2017-06-09 | 青岛海尔智能技术研发有限公司 | Water heater and the pipeline electric heater unit for water heater |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2018207382A1 (en) * | 2017-05-12 | 2020-05-14 | シャープ株式会社 | Steam generator and cooker |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046887U (en) * | 1989-03-29 | 1989-11-01 | 张明方 | Axial influx-efflux type electrostatic descaling apparatus |
| FR2677438A1 (en) * | 1991-06-10 | 1992-12-11 | Bourgeois Ste Coop Prod | DEFORMABLE WALL BOILER. |
| CN2355213Y (en) * | 1998-07-21 | 1999-12-22 | 乔有志 | Instant heating steam generator |
| CN2591546Y (en) * | 2002-08-12 | 2003-12-10 | 北京市斯佩思技术应用研究所 | Scaler for water heater |
| CN1668235A (en) * | 2002-07-12 | 2005-09-14 | 雀巢技术公司 | A device for the heating of a liquid |
| CN201179518Y (en) * | 2008-04-23 | 2009-01-14 | 孙冉 | Antiscaling apparatus of electric heater |
| CN101398264A (en) * | 2008-10-30 | 2009-04-01 | 唐子奉 | Auto descaling heat exchanger |
| CN201731466U (en) * | 2010-05-20 | 2011-02-02 | 陈锡富 | Vapor generation device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120039A (en) * | 1982-01-08 | 1983-07-16 | Matsushita Electric Ind Co Ltd | Water heater |
| DE3514053A1 (en) * | 1985-04-18 | 1986-10-23 | Lacrex Brevetti S.A., Orselina | DEVICE FOR PREHEATING LIQUIDS, ESPECIALLY LIQUID FUEL OR FUEL |
| FR2676464A1 (en) * | 1991-05-16 | 1992-11-20 | Innovations Thermiques | HEATING DEVICE EQUIPPED WITH AN ANTI-DEPOSIT MEANS, ESPECIALLY SCALE. |
-
2011
- 2011-07-25 FR FR1156745A patent/FR2978528B1/en not_active Expired - Fee Related
-
2012
- 2012-07-24 CN CN201280046540.2A patent/CN103906972A/en active Pending
- 2012-07-24 WO PCT/FR2012/051760 patent/WO2013014390A2/en active Application Filing
- 2012-07-24 EP EP12744103.8A patent/EP2737249B1/en active Active
- 2012-07-25 US US14/342,385 patent/US20140308027A1/en not_active Abandoned
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046887U (en) * | 1989-03-29 | 1989-11-01 | 张明方 | Axial influx-efflux type electrostatic descaling apparatus |
| FR2677438A1 (en) * | 1991-06-10 | 1992-12-11 | Bourgeois Ste Coop Prod | DEFORMABLE WALL BOILER. |
| CN2355213Y (en) * | 1998-07-21 | 1999-12-22 | 乔有志 | Instant heating steam generator |
| CN1668235A (en) * | 2002-07-12 | 2005-09-14 | 雀巢技术公司 | A device for the heating of a liquid |
| CN2591546Y (en) * | 2002-08-12 | 2003-12-10 | 北京市斯佩思技术应用研究所 | Scaler for water heater |
| CN201179518Y (en) * | 2008-04-23 | 2009-01-14 | 孙冉 | Antiscaling apparatus of electric heater |
| CN101398264A (en) * | 2008-10-30 | 2009-04-01 | 唐子奉 | Auto descaling heat exchanger |
| CN201731466U (en) * | 2010-05-20 | 2011-02-02 | 陈锡富 | Vapor generation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813375A (en) * | 2015-12-01 | 2017-06-09 | 青岛海尔智能技术研发有限公司 | Water heater and the pipeline electric heater unit for water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2737249B1 (en) | 2015-10-28 |
| FR2978528A1 (en) | 2013-02-01 |
| WO2013014390A3 (en) | 2013-08-15 |
| FR2978528B1 (en) | 2015-03-27 |
| US20140308027A1 (en) | 2014-10-16 |
| EP2737249A2 (en) | 2014-06-04 |
| WO2013014390A2 (en) | 2013-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20170524 |