CN102168887A - Novel anticorrosion and antiscale electric water heater - Google Patents
Novel anticorrosion and antiscale electric water heater Download PDFInfo
- Publication number
- CN102168887A CN102168887A CN2011101129887A CN201110112988A CN102168887A CN 102168887 A CN102168887 A CN 102168887A CN 2011101129887 A CN2011101129887 A CN 2011101129887A CN 201110112988 A CN201110112988 A CN 201110112988A CN 102168887 A CN102168887 A CN 102168887A
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- transfer medium
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- inner bag
- water heater
- heat transfer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000005260 corrosion Methods 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 238000009825 accumulation Methods 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 5
- 239000007791 liquid phase Substances 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 3
- 238000003287 bathing Methods 0.000 abstract description 16
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 229910001425 magnesium ion Inorganic materials 0.000 abstract description 5
- 238000005338 heat storage Methods 0.000 abstract 3
- 241000894006 Bacteria Species 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 230000002950 deficient Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 230000003260 anti-sepsis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- -1 relief valve Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a novel anticorrosion and antiscale electric water heater, which comprises a shell, an insulating layer in the shell and an inner container in the insulating layer, wherein a metal coil pipe, a heat storage heat-transfer medium and a heating element for heating the heat storage heat-transfer medium are arranged inside the inner container; both ends of the metal coil pipe extend out of the inner container and are communicated with the outside to form a cold water inlet and a hot water outlet; the heat storage heat-transfer medium is filled into the inner container; and the metal coil pipe is in a spiral shape or a coiled pipe shape. The novel anticorrosion and antiscale electric water heater has the advantages that: the corrosion resistance of the inner container is enhanced; scale deposits can be resisted, the heat efficiency is improved, the probability of electrification in water due to burnthrough is reduced, and the pressure of the inner container of the water heater is reduced; and the operation of increasing magnesium ions to bath water artificially is avoided, the phenomenon of sometimes cold and sometimes hot during bathing is changed, the water outlet temperature is stable within short time, and the comfort degree of the bathing is improved.
Description
Technical field
The present invention relates to the electric-heating technology field, particularly relate to a kind of anti-corrosion anti-scale electric water heater.
Background technology
In storage-type electric water heater and quick electric water heater field, generally the mode of heating of usefulness is at present: place electrothermal tube in a big container, bath water enters internal tank by water inlet pipe, mix with original storage water, electrothermal tube is directly to these water heating, mixed water comes out from outlet pipe, directly supplies people's bathing.
The defective of at present main mode of heating:
1, easy scaling
With electrothermal tube heating direct heating bath water a very big defective being arranged, is exactly to be very easy to scaling, especially in the harder area of water quality.Because the electrothermal tube wall temperature is very high, 800 degrees centigrade of Gao Keda, and be to static water heating, so can a large amount of incrustation scales of very fast formation.
2, the harm of incrustation scale
Incrustation scale is attached to the electrothermal tube surface, and the heat that electrothermal tube sends passes and do not go out, and causes the electrothermal tube internal heat to be gathered, and a large amount of heats distribute by the electrothermal tube outer end, and the thermal efficiency reduces; More have even, will cause that electrothermal tube is local to be melted, burn, make in the water charged.The accident that all has domestic every year the ordered series of numbers electric heater to electrocute the people takes place.
3, corrosion easily
Simultaneously, the long-term contact of water heater liner contains the running water of multiple acid group, adds long-term insulation, and corrosivity is stronger.Leaking appears in commissure easily, causes inner bag shortening in service life.
4, magnesium ion harm
In order to increase the service life, each producer has all adopted the magnesium rod anticorrosion, but when playing antisepsis, has increased magnesium ion in the feedwater again, not only influences the effect of bathing lotion shampoo, and is also harmful unhelpful.
5, breed bacteria
The hot water of inner bag storage is incubated for a long time, and each bathing all is that new water mixes old water, makes bacterium in the water, virus grow, and health is harmful to health.
6, water temperature is sometimes hot and sometimes cold
Existing product all is by a water inlet pipe cold water to be introduced inner bag by running water, and hot and cold water mixes, and comes out from outlet pipe again, will occur hot and cold water like this and mix uneven situation, and water is sometimes hot and sometimes cold.
7, the long-term pressure-bearing of inner bag occurs distortion easily, leaks.
The water heater liner water intaking valve is all often opened, and its requirement has check function, the hydraulic pressure of inner bag the inside will be higher than tap water pressure along with the rising of temperature, sometimes above 8.5 kilograms, and in the bathing process, pressure can be reduced to below the running water system pressure again, the pressure differential of recurrent Shanghai Communications University, cause the inner bag distortion, electric heater for adopting enamel anticorrosion can cause inner enamel to come off, for the electric heater that adopts stainless steel inner container, can change the commissure, the stainless steel intergranular structure of end caps iso-stress larger part has reduced stainless resistance to corrosion; In a word, the repeated deformation of inner bag has strengthened corrosion rate.
Summary of the invention
The objective of the invention is to solve the defective of above-mentioned prior art, and a kind of anti-corrosion anti-scale electric water heater is provided.
Technical scheme of the present invention: a kind of anti-corrosion anti-scale electric water heater, comprise heat-insulation layer and the interior inner bag of heat-insulation layer in shell, the shell, described inner bag inside is provided with the heating element heater that a metal coil pipe, a heat accumulation heat transfer medium heat medium and are used to heat described heat accumulation heat transfer medium, the two ends of this metal coil pipe are extended inner bag and are communicated with the external world and constitute cooling water inlet, hot water outlet, this heat accumulation heat transfer medium is full of inner bag, and this metal coil pipe is helical form or snakelike tubulose.
Among the present invention, this heating element heater is located in the inner heat accumulation heat transfer medium of this inner bag.
Among the present invention, this heating element heater is located at this inner bag outside and is coated the outer surface of this inner bag.
Among the present invention, when this heating element heater was located at this inner bag outside and is coated the outer surface of this inner bag, the skin of this heating element heater can wrap up one deck heat-conducting insulation material.
Among the present invention, water heater control system can be regulated the heating power of described heating element heater self according to the difference of heat accumulation heat transfer medium temperature.
Among the present invention, described heat accumulation heat transfer medium is a liquid heat accumulation heat transfer medium.
Among the present invention, described liquid heat accumulation heat transfer medium is but is not limited to pure water.
Among the present invention, described heat accumulation heat transfer medium also can be solid-liquid phase change heat accumulation heat transfer medium.
Among the present invention, described inner bag also is provided with the inlet of the phase-change thermal storage heat transfer medium that is used to pack into.
Among the present invention, described inner bag also is provided with relief valve and is used to inject the water filling port of liquid heat accumulation heat transfer medium.
Adopt anti-corrosion anti-scale electric water heater of the present invention, have following beneficial effect:
1, strengthens the inner bag resistance to corrosion, further increase the service life.
2, anti-incrustation scale.Improve the thermal efficiency, reduce and burn and cause the probability that charged accident occurs in the water.
3, reduce water heater liner pressure, increase the service life.
4, avoid increasing to bath water artificially the operation of magnesium ion, ensure the healthy bathing of user.
5, avoid because storage hot water and a large amount of bacteriums of growing enter bath water and endanger healthy.
Sometimes hot and sometimes cold phenomenon when 6, changing bathing realizes in the leaving water temperature short time stablely, improves the bath comfort degree.
Description of drawings
Fig. 1 is the structure chart of anti-corrosion anti-scale electric water heater of the present invention.
[figure number is to as directed]
1 inner bag, 2 metal coil pipes
3 heat accumulation heat transfer mediums, 4 heating element heaters
5 cooling water inlets, 6 hot water outlets
The specific embodiment
Further understand and understanding for making architectural feature of the present invention and the effect reached had, cooperate detailed explanation, be described as follows in order to preferred embodiment and accompanying drawing:
Fig. 1 is the structure chart of anti-corrosion anti-scale electric water heater of the present invention, as shown in the figure.Anti-corrosion anti-scale electric water heater of the present invention, comprise heat-insulation layer and the interior inner bag 1 of heat-insulation layer in shell, the shell, inner bag 1 inside is provided with the heating element heater 4 that a metal coil pipe 2, a heat accumulation heat transfer medium 3 and are used to heat described heat accumulation heat transfer medium 3, the two ends of metal coil pipe 2 are extended inner bag 1 and are communicated with the external world and constitute cooling water inlet 5, hot water outlet 6, heat accumulation heat transfer medium 3 is full of inner bag 1, and metal coil pipe 2 is helical form or snakelike tubulose.
It is inner and pass this metal coil pipe 2 (as shown in Figure 1) that heating element heater 4 of the present invention can be located at this inner bag 1, and it is outside and coat the outer surface (figure does not provide) of this inner bag 1 perhaps also can be located at this inner bag 1.If coil pipe 2 is a coiled pipe, then heating element heater 4 also can be placed on inner bag inside, the coiled pipe next door.
Wherein, for avoiding heating element heater 4 electric leakages human electric shock's danger takes place, can be at skin parcel one deck heat-conducting insulation material of heating element heater 4.
In addition, the difference that heating element heater 4 can heat accumulation heat transfer medium 3 temperature under the conciliation of water heater control system changes self heating power.
Heat accumulation heat transfer medium 3 in above-mentioned can be a liquid heat accumulation heat transfer medium, and this liquid heat accumulation heat transfer medium is pure water or other similar liquids.
Heat accumulation heat transfer medium 3 in above-mentioned can also be a solid-liquid phase change heat accumulation heat transfer medium.
Describe with liquid heat accumulation heat transfer medium in the preferred embodiment of the present invention, but the present invention is not limited to liquid heat accumulation heat transfer medium.Its operation principle is as follows:
At first inject pure water or running water at the water filling port of water heater in inner bag 1 container.The two ends of metal coil pipe 2 are in the container outside, and end water inlet one brings out water.Simultaneously, temperature-sensing probe, magnesium rod, relief valve, water filling port or the like are housed on the container.
After water heater installed, need in the container inner bag, inject the liquid medium or the solid-liquid phase change medium (for example pure water or running water) of heat accumulation heat transfer usefulness, note reserving certain space, the concrete space of reserving can be decided according to the coefficient of expansion that uses liquid, and its computational methods are exemplified below:
Can set minimum temperature is 4 degrees centigrade, and maximum temperature is 80 degrees centigrade, 76 degrees centigrade of the temperature difference.
The inner bag net capacity is L, and the coefficient of expansion of liquid medium is α, the space S of then reserving=L* Δ T* α.
Before the bathing, the heating of water heater need being switched on, heating element heater 4 evolutions of heat are heated to the temperature of setting to the liquid in container medium, for example 75 degrees centigrade.
During bathing, bathing enters metal coil pipe 2 in the container with cold water through cooling water inlet 5, constantly absorbs heat from metal coil pipe 2 inwalls, temperature constantly raises, because pipeline is longer, heating surface area is bigger, when arriving hot water outlet 6, become operable hot water.
Therefore, the liquid storage heat of the big specific heat capacity of anti-corrosion anti-scale electric water heater utilization of the present invention rather than storage bath water, carry out heat exchange by long heat exchange pipeline during bathing, cold water is heated through the short time in pipeline, realize providing the function of fresh hot water.
From the above, anti-corrosion anti-scale electric water heater of the present invention is kept apart bath water and heating liquid, thereby has avoided harm that the two is mixed and is produced.For example, scaling, perishable etc.
The elongated water channel of metal coil pipe passes in big specific heat capacity medium, rather than directly enters inner bag, has both realized the storage of heat, has avoided again simultaneously because of the storage harm that heat brought.For example existing water heater liner is because storage hot water and the easy scaling that causes, perishable, easy breed bacteria, the hot water that comes out are sometimes hot and sometimes cold etc.
Heat accumulation and heat transfer medium adopt corrosivity little and be difficult for producing the liquid (for example pure water) or the lower liquid of incrustation scale content of incrustation scale, thereby have avoided the defective of the heating storage mode that generally adopts in the market: perishable inner bag and heating tube outer wall.
The tap water pressure in when work is passed to inner seamless coil pipe, rather than the inner bag of many places weld seam is arranged, thereby avoided inner bag distortion, crack, quality accident such as leak.Water stream channel in the whole heating process does not have pad, has avoided the leakage accident that causes because of problems of welded quality.
Heating components and parts liquid little with corrosivity and that composition of scale content is very low contacts, and has prolonged the life-span of heater members.
Liquid in the container does not link to each other with bath water (generally being running water), thus the elevated pressures (the highest pressure release pressure of existing electric heater is 0.85Mpa) of having avoided container inner wall to bear for a long time.
Before work, liquid in container is not exclusively filled with inside, remaining certain expansion space, and water temperature is controlled at below the boiling point, thus make that container inner bag internal pressure is very little---a little more than atmospheric pressure.
Along the path flows of rule, no matter whether the water system water pressure fluctuations to be when being heated for bath water, and current deflecting is constant, first in first out, thus make temperature evenly raise.And in the prior art scheme, after cold water enters in the inner bag of large space in the pipeline, random turbulent flow can appear, the water temperature that causes electrothermal tube to touch is sometimes hot and sometimes cold, has reduced service life; The bath water that comes out is also sometimes hot and sometimes cold.
Therefore, adopt anti-corrosion anti-scale electric water heater of the present invention to have the following advantages:
A, anticorrosive
The liquid of low-corrosiveness is equipped with as the heat accumulation heat transfer medium in inner bag inside, and the corrosivity to container inner wall and coil pipe outer wall during heating reduces greatly.
For the coil pipe inwall, corrosivity is also very low: whole coil pipe adopts seamless noncorroding metal pipe or non-metallic pipe, does not have the solder joint weld seam, has got rid of the easiest weak spot of being corroded.And the high-temperature-hot-water major part in the at present common inner bag is the running water of bringing in constant renewal in, and contains a large amount of acid group particles, is easy to corrode inner bag.
B, anti-incrustation scale
At first because internal tank heat accumulation heat transfer medium is the liquid that corrosive power is low and incrustation scale hardness is low (a for example pure water), so can scaling on the electrothermal tube outer wall.Even use the higher liquid (for example running water) of hardness, because an inner bag liquid medium uses for a long time, the composition of scale of the inside is limited, and amount of scale is also limited.
And inner coil pipe is closed, also unsuitable scaling, because: (1) is very fast owing to water velocity, inner wall smooth; (2) temperature is lower on the coil pipe inwall, and when bathing, between the inner wall temperature 42-70 degree, this compares with the temperature more than 600 degree of present electrothermal tube surface, belongs to the heating of low temperature rank, and incrusted speed is well below the prior art scheme.
C, since incrusted speed reduce greatly, also reduce thereby electrothermal tube burns charged possibility, also just reduced the electric leakage contingency occurrence probability; The thermal efficiency also promotes greatly simultaneously.
D, magnesium rod are placed on outside the interior metal coil pipe of container, even the dissolving of magnesium rod, magnesium ion can not enter bath water yet; Guarantee that bath water can additionally not increase metal ion because of the protection inner bag; Bathing is good for one's health.
E, metal coil pipe pipeline are very long, and the inside water temperature raises gradually, and leaving water temperature is even, can be because current spring up local overcooling overheated.
Only stored a small amount of hot water in D, when insulation pipeline, and can all get rid of during bathing, do not had " stagnant water " of storage when long, do not had because of storing the germ contamination that produces for a long time, bathing is more healthy.
In sum, it only is preferred embodiment of the present invention, be not to be used for limiting scope of the invention process, all equalizations of doing according to the described shape of claim scope of the present invention, structure, feature and spirit change and modify, and all should be included in the claim scope of the present invention.
Claims (9)
1. anti-corrosion anti-scale electric water heater, comprise heat-insulation layer and the interior inner bag of heat-insulation layer in shell, the shell, it is characterized in that, described inner bag inside is provided with the heating element heater that a metal coil pipe, a heat accumulation heat transfer medium heat medium and are used to heat described heat accumulation heat transfer medium, the two ends of this metal coil pipe are extended inner bag and are communicated with the external world and constitute cooling water inlet, hot water outlet, this heat accumulation heat transfer medium is full of inner bag, and this metal coil pipe is helical form or snakelike tubulose.
2. anti-corrosion anti-scale electric water heater according to claim 1 is characterized in that, this heating element heater is located in the inner heat accumulation heat transfer medium of this inner bag.
3. anti-corrosion anti-scale electric water heater according to claim 1 is characterized in that, this heating element heater is located at this inner bag outside and is coated the outer surface of this inner bag.
4. anti-corrosion anti-scale electric water heater according to claim 3 is characterized in that, skin parcel one deck heat-conducting insulation material of this heating element heater.
5. anti-corrosion anti-scale electric water heater according to claim 1 is characterized in that, water heater control system is according to the heating power of heat accumulation heat transfer medium adjustment described heating element heater self.
6. anti-corrosion anti-scale electric water heater according to claim 1 is characterized in that, described heat accumulation heat transfer medium is a liquid heat accumulation heat transfer medium.
7. anti-corrosion anti-scale electric water heater according to claim 1 is characterized in that, described heat accumulation heat transfer medium is a solid-liquid phase change heat accumulation heat transfer medium.
8. anti-corrosion anti-scale electric water heater according to claim 1 is characterized in that, described inner bag also is provided with relief valve and is used to inject the water filling port of liquid heat accumulation heat transfer medium.
9. anti-corrosion anti-scale electric water heater according to claim 1 is characterized in that, described inner bag also is provided with the inlet of the phase-change thermal storage heat transfer medium that is used to pack into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101129887A CN102168887A (en) | 2011-04-29 | 2011-04-29 | Novel anticorrosion and antiscale electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101129887A CN102168887A (en) | 2011-04-29 | 2011-04-29 | Novel anticorrosion and antiscale electric water heater |
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| Publication Number | Publication Date |
|---|---|
| CN102168887A true CN102168887A (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101129887A Pending CN102168887A (en) | 2011-04-29 | 2011-04-29 | Novel anticorrosion and antiscale electric water heater |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016745A (en) * | 2016-07-01 | 2016-10-12 | 杭州杰富睿科技有限公司 | Instant heating type safe electric water heater |
| CN106152495A (en) * | 2016-08-06 | 2016-11-23 | 徐欣 | Water heater |
| CN106679179A (en) * | 2016-12-06 | 2017-05-17 | 嘉兴家乐福新能源有限公司 | Backflow heat exchange type electric water heater |
| CN108444104A (en) * | 2018-05-16 | 2018-08-24 | 宋秋云 | A heat-exchanging water storage electric water heater |
| CN113438761A (en) * | 2021-07-14 | 2021-09-24 | 珠海格力电器股份有限公司 | Heating device and water heater |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2354057Y (en) * | 1998-10-06 | 1999-12-15 | 骆修银 | Energy-accumulated electric water-heater |
| CN2474945Y (en) * | 2001-02-12 | 2002-01-30 | 胡金高 | Energy storage heat exhcange type electric water heater |
-
2011
- 2011-04-29 CN CN2011101129887A patent/CN102168887A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2354057Y (en) * | 1998-10-06 | 1999-12-15 | 骆修银 | Energy-accumulated electric water-heater |
| CN2474945Y (en) * | 2001-02-12 | 2002-01-30 | 胡金高 | Energy storage heat exhcange type electric water heater |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016745A (en) * | 2016-07-01 | 2016-10-12 | 杭州杰富睿科技有限公司 | Instant heating type safe electric water heater |
| CN106152495A (en) * | 2016-08-06 | 2016-11-23 | 徐欣 | Water heater |
| CN106679179A (en) * | 2016-12-06 | 2017-05-17 | 嘉兴家乐福新能源有限公司 | Backflow heat exchange type electric water heater |
| CN108444104A (en) * | 2018-05-16 | 2018-08-24 | 宋秋云 | A heat-exchanging water storage electric water heater |
| CN113438761A (en) * | 2021-07-14 | 2021-09-24 | 珠海格力电器股份有限公司 | Heating device and water heater |
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Application publication date: 20110831 |