CN108981164A - Electric water heater system and electric heater - Google Patents
Electric water heater system and electric heater Download PDFInfo
- Publication number
- CN108981164A CN108981164A CN201710406676.4A CN201710406676A CN108981164A CN 108981164 A CN108981164 A CN 108981164A CN 201710406676 A CN201710406676 A CN 201710406676A CN 108981164 A CN108981164 A CN 108981164A
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- China
- Prior art keywords
- shell
- change material
- thermal insulation
- insulation layer
- pcm
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/0208—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- 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
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- 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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
Abstract
The present invention provides a kind of electric water heater system, including first shell, high temperature phase change material (pcm) is provided in first shell；Heater；Thermal insulation layer is set in the outside of first shell；Second shell is set in outside thermal insulation layer, is formed water flow road between second shell and the extexine of thermal insulation layer, is provided with inlet and outlet in second shell；Wherein, when system heat release, cold water is discharged after thermal insulation layer and high temperature phase change material (pcm) carry out heat exchange from water outlet from water inlet water flow road.Electric water heater system provided by the invention, utilize high temperature phase change material (pcm), further reduce the volume of electric heater, when system heat release, heat passes to cold water by phase-change material, due to the height heat insulation of thermal insulation layer, make the interface from high temperature phase change material (pcm) and thermal insulation layer, temperature to the extexine of thermal insulation layer is distributed in ladder, the phenomenon that 100 DEG C of temperature is become less than by the temperature close to high temperature phase change material (pcm), is vaporized so as to avoid cold water in heating process.
Description
Technical field
The present invention relates to fields of home appliance technology, in particular to a kind of electric water heater system and electric heater.
Background technique
Currently, phase-change material studies comparative maturity, and commercialization is realized there are many phase-change material, but to Gao Qian
The research of the stability of the hot phase-change material and integrity problem progress of not making a breakthrough property always.In addition, in addition to metal
Phase-change material, all has that thermal coefficient is low, and the problem of heat-transfer capability difference, this obviously influences the storage speed of energy.Opposite sensible heat
Formula heat accumulation, latent heat of phase change formula heat accumulation have the remarkable advantages such as quantity of heat storage is big, volume is light and handy, temperature fluctuation is small, transfer peak load.
In domestic, electric water heater, water tank is substituted using phase change material heat exchanger, not only can substantially reduce the volume of electric heater, also
The slough that can occur to avoid water tank, reduces the generation of scale, increases the hygiene and health experience of user.
In the related technology, existing domestic water-heating system (temperature is at 40-100 DEG C) commonly uses the phase transition temperature of phase-change heat-storage material
Between 50-80, energy storage density is usually less than 400kJ/L, can reduce in domestic, electric water heater using such phase-change material
Volume (heating power size used in the electric heater and water-heater system depending on different capabilities, the volume contracting of water heater
By a small margin up to 40%).
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, it is an advantage of the invention to provide a kind of electric water heater systems.
It is a further object of the invention to provide a kind of electric heaters.
In view of this, a purpose according to the present invention proposes a kind of electric water heater system, including first shell, first
High temperature phase change material (pcm) is provided in shell；Heater, for being heated to high temperature phase change material (pcm)；Thermal insulation layer is set in first shell
Outside；Second shell is set in outside thermal insulation layer, formation water flow road between second shell and the extexine of thermal insulation layer, and second
Inlet and outlet are provided on shell；Wherein, when system heat accumulation, heater heats high temperature phase change material (pcm)；When
When system heat release, cold water is arranged after thermal insulation layer and high temperature phase change material (pcm) carry out heat exchange from water outlet from water inlet water flow road
Out.
Electric water heater system provided by the invention, high temperature phase change material (pcm) is arranged in first shell, so that electric heater system
The energy storage density of system increases, and reduces the volume of electric heater.Thermal insulation layer is set in the outside of first shell, avoids phase transformation material
Expect the High Temperature problem occurred when the temperature is excessively high.When system heat accumulation, high temperature phase change material (pcm) is heated by heater, is made
It is heated to the condition of high temperature；When system heat release, cold water is flowed by water inlet pipe, water flow road is flowed through, through thermal insulation layer and high-temperature phase-change
Material carries out heat exchange, and heat flows out water outlet after passing to cold water by phase-change material, completes heat release.Due to the height of thermal insulation layer
Heat insulation makes the interface from high temperature phase change material (pcm) and thermal insulation layer, and the temperature to the extexine of thermal insulation layer is distributed in ladder, by
100 DEG C of temperature is become less than close to the temperature of high temperature phase change material (pcm), is gone out so as to avoid the cold water being heated in heating process
The phenomenon that now vaporizing.
In addition, the electric water heater system in above-described embodiment provided by the invention can also have following supplementary technology special
Sign:
In the above-mentioned technical solutions, it is preferable that first shell, thermal insulation layer, second shell shape be spherical or rectangular.
In the technical scheme, first shell, thermal insulation layer, second shell shape be it is spherical or rectangular, on the one hand make whole
Body electric water heater system volume reduces, and reduces production cost, and makes whole more beautiful；On the other hand make cold water with
Thermal insulation layer comes into full contact with, so that the cold water of each position is cooled uniformly, and then accelerates the speed of heat transmitting, improves
The heat exchange efficiency of electric heater.
In any of the above-described technical solution, it is preferable that when the shape of first shell, thermal insulation layer, second shell is spherical,
Water flow Lu Weihuan spherical channel.
In the technical scheme, water flow has water inlet inflow, flows to water outlet through water flow road, when first shell, thermal insulation layer,
When the shape of second shell is spherical, water flow Lu Weihuan spherical channel increases the contact area of water flow and thermal insulation layer, to mention
The high heat exchange efficiency of electric water heater system.
In any of the above-described technical solution, it is preferable that first shell, thermal insulation layer, second shell shape be it is rectangular when, side
The ratio of full-size and minimum dimension in the length of shape is less than or equal to 2.
In the technical scheme, water flow is entered by water inlet, is carried out heat exchange through high temperature phase change material (pcm) and thermal insulation layer and is absorbed heat
It is flowed out after amount by water outlet.Wherein first shell, thermal insulation layer, second shell shape be it is rectangular when, rectangular length
In full-size and the ratio of minimum dimension be less than or equal to 2, to further reduce the volume of electric water heater system, drop
Low production cost, while heat exchange efficiency when heating is improved again.
In any of the above-described technical solution, it is preferable that be provided with the first connection between the shell and first shell of thermal insulation layer
Muscle；The second dowel is provided between the shell and second shell of thermal insulation layer；Wherein, the second dowel is located at and the first dowel
Corresponding outside.
In the technical scheme, since high temperature phase change material (pcm) can generate higher temperature, and the shell of thermal insulation layer with
The first dowel is provided between first shell；It is provided with the second dowel between the shell and second shell of thermal insulation layer, enhances
Reliability and stability between thermal insulation layer and the first shell and second housing, avoid in heating process to cross high temperature existing
As, and then avoid the phenomenon that cold water being heated in heating process vaporizes.
In any of the above-described technical solution, it is preferable that the both sides of the edge line of the first dowel and the second dowel is formed
Angle value range be 10 degree to 30 degree.
In the technical scheme, heater heats high temperature phase change material (pcm), it is made to lay in high temperature heat, the setting of thermal insulation layer
Ladder setting is presented in the temperature for transmitting it to water flow road, and the both sides of the edge line of the first dowel and the second dowel is formed
Angle connects the first dowel and the second dowel relatively reliable, and the angle value range is set as 10 degree to 30
Between degree, the reliability of connection is further ensured, to ensure that the reliability of thermal insulation layer, avoids the mistake in heating process
High temperataure phenomena, and then avoid the phenomenon that cold water being heated in heating process vaporizes.
In any of the above-described technical solution, it is preferable that thermal insulation layer is vacuum heat-insulating layer.
In the technical scheme, the thermal insulation layer of vacuum can be effectively reduced heat transfer, to make the extexine temperature of thermal insulation layer
Degree is lower than 100 DEG C, avoids the mistake high temperataure phenomena in heating process, and then avoids the cold water being heated in heating process and occur
The phenomenon that vaporization.Wherein, the outer surface of vacuum heat-insulating layer is preferably the smooth spherical surface with mirror-reflection effect.
In any of the above-described technical solution, it is preferable that high temperature phase change material (pcm) includes first layer phase-change material and setting the
Second layer phase-change material outside one layer of phase-change material.
In the technical scheme, the thermal conductivity ratio room temperature material of high temperature phase change material (pcm) is up to several times, increases phase transformation material
The heat exchange efficiency of material.Phase-change material is divided into two layers, so that phase-change material itself is formed a temperature step, so as to avoid heated
Mistake high temperataure phenomena in journey, and then avoid the phenomenon that cold water being heated in heating process vaporizes.
In any of the above-described technical solution, it is preferable that heater is arranged in first layer phase-change material and second layer phase transformation material
At the interface of material.
In the technical scheme, high temperature phase change material (pcm) is divided into two layers of setting, heater setting in first layer phase-change material and
At the interface of second layer phase-change material, make first layer phase-change material and the second layer phase-change material heat accumulation simultaneously, and then improve
The heat exchange efficiency of phase-change material.Wherein, the interface of first layer phase-change material and second layer phase-change material is the heating of spontaneous heating
Surface.
In any of the above-described technical solution, it is preferable that heater is electric heating wire, microwave applicator or electromagnetic heater.
In the technical scheme, heater is electric heating wire, microwave applicator or electromagnetic heater, and then to high-temperature phase-change
Material is heated, and ensure that the safety of electric water heater system；Wherein, when high temperature phase change material (pcm) is divided into two layers, add
Hot device is placed between two layers, while the interface of two layers of phase-change material can be the heating surface of spontaneous heating, specifically, can be
Microwave or electromagnetic heating.
In any of the above-described technical solution, it is preferable that further include temperature control system, be connected with heater, add for controlling
The switch of hot device.
In the technical scheme, the switch of heater is controlled by temperature control system, and then controls high temperature phase change material (pcm)
Temperature not only avoids the mistake high temperataure phenomena in heating process, it is thus also avoided that the cold water being heated in heating process vaporizes
The phenomenon that, improve the safety of electric water heater system.
In any of the above-described technical solution, it is preferable that temperature control system includes: temperature sensor, for detecting high-temperature phase-change
Central temperature, first shell temperature, the thermal insulation layer temperature of material；And switch controller, it is connected with temperature sensor, is used for
According to the switch of the temperature control heater of temperature sensor detection.
In the technical scheme, temperature sensor be used to detect the central temperature of high temperature phase change material (pcm), first shell temperature,
Thermal insulation layer temperature, switch controller are connected with temperature sensor, and the temperature for being detected according to temperature sensor controls heating
The switch of device, and then the safety and reliability of electric water heater system is improved, the mistake high temperataure phenomena in heating process is avoided,
And then avoid the phenomenon that cold water being heated in heating process vaporizes.
In any of the above-described technical solution, it is preferable that water inlet pipe is connected with water inlet；Spray equipment is arranged second
In shell, it is connected with water inlet pipe；Outlet pipe is connected with water outlet.
In the technical scheme, water inlet pipe is connected with water inlet, and outlet pipe is connected with water outlet, and spray equipment will be by intaking
The cold water that mouth flows into is sprayed, and is accelerated heat exchange efficiency, to make cold water thermally equivalent, is guaranteed the coolant-temperature gage phase of different location
Together.
In any of the above-described technical solution, it is preferable that the latent heat of phase change of high temperature phase change material (pcm) is greater than 1800KJ/L；High-temperature-phase
The phase transition temperature for becoming material is greater than 500 DEG C.
In the technical scheme, high temperature phase change material (pcm) latent heat of phase change is greater than 1800KJ/L；The phase alternating temperature of high temperature phase change material (pcm)
Degree is greater than 500 DEG C, so that the energy storage density of electric water heater system increases, to further reduce the volume of water heater.
In any of the above-described technical solution, it is preferable that be provided with heat-barrier material in thermal insulation layer；Heat-barrier material includes: airsetting
Glue, VIP, HVIP.
In the technical scheme, heat-barrier material is provided in thermal insulation layer；Heat-barrier material is preferably aeroge, VIP, HVIP,
The material of height insulation makes to form biggish temperature step to thermal insulation layer outer surface by phase-change material, to ensure that electric heater system
The safety and reliability of system avoids the mistake high temperataure phenomena in heating process, and then avoids and be heated in heating process
The phenomenon that cold water vaporizes.
Second object of the present invention proposes a kind of electric heater, because including electric heater system described in first purpose
System, therefore, whole advantageous effects with the electric water heater system.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the structural schematic diagram of the electric water heater system of first aspect present invention embodiment offer；
Fig. 2 shows the thermal coefficient schematic diagrames of heat-barrier material；
Fig. 3 show first shell, thermal insulation layer, second shell shape be rectangular structural schematic diagram；
Fig. 4 shows the structural schematic diagram of the electric water heater system with the first dowel and the second dowel；
Fig. 5 shows in Fig. 4 A to the structural schematic diagram in section；
Fig. 6 shows the structural schematic diagram of the liner of electric water heater system；
Fig. 7 shows the structural schematic diagram of the temperature control system of electric water heater system；
Fig. 8 shows the structural schematic diagram for the electric water heater system that further embodiment of the present invention provides.
Wherein, corresponding relationship of the Fig. 1 into Fig. 8 between appended drawing reference and component names are as follows:
1 electric water heater system, 102 first shells, 104 high temperature phase change material (pcm)s, 1042 first layer phase-change materials, 1,044 second
Layer phase-change material, 106 heaters, 108 thermal insulation layers, 110 second shells, 1102 water inlets, 1104 water outlets, 112 water flow roads,
114 water inlet pipes, 116 outlet pipes, 118 spray equipments, 120 first dowels, 122 second dowels, 124 temperature control systems.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Referring to electric water heater system described in Fig. 1 to Fig. 8 description according to some embodiments of the invention.
As shown in Figures 1 to 8, the invention proposes a kind of electric water heater system 1, including first shell 102, first shells
High temperature phase change material (pcm) 104 is provided in 102；Heater 106, for being heated to high temperature phase change material (pcm) 104；Thermal insulation layer 108, is arranged
In the outside of first shell 102；Second shell 110, is set in outside thermal insulation layer, the appearance of second shell 110 and thermal insulation layer 108
Water flow road 112 is formed between floor, is provided with water inlet 1102 and water outlet 1104 in second shell 110；Wherein, when system heat accumulation
When, heater 106 heats high temperature phase change material (pcm) 104；When system heat release, cold water from 1102 water flow road 112 of water inlet,
After thermal insulation layer 108 and high temperature phase change material (pcm) 104 carry out heat exchange, it is discharged from water outlet 1104.
Electric water heater system 1 provided by the invention, high temperature phase change material (pcm) 104 is arranged in first shell 102, so that electric heating
The energy storage density of water heater system 1 increases, and reduces the volume of electric heater.Thermal insulation layer 108 is set in the outer of first shell 102
Portion, avoid phase-change material temperature it is excessively high when the High Temperature problem that occurs.When system heat accumulation, by heater 106 to high temperature
Phase-change material 104 is heated, it is made to be heated to the condition of high temperature；When system heat release, cold water is flowed by water inlet pipe 114, is flowed through
Water flow road 112 carries out heat exchange through thermal insulation layer 108 and high temperature phase change material (pcm) 104, and heat flows after passing to cold water by phase-change material
Heat release is completed in water outlet 1104 out.Due to the height heat insulation of thermal insulation layer 108, make from high temperature phase change material (pcm) 104 and thermal insulation layer
108 interface, the temperature to the extexine of thermal insulation layer 108 are distributed in ladder, by the temperature change close to high temperature phase change material (pcm) 104
For the temperature lower than 100 DEG C, the phenomenon that vaporization so as to avoid the cold water being heated in heating process.
As shown in Fig. 2, calculate phase-change material physical parameter used in case: (MIT is opened phase-change material in specific embodiment
Hair): 45Al-40Si-15Fe, phase transition temperature: 875 DEG C, heat enthalpy value: 865kJ/kg, density: 2.5kg/L, volume heat enthalpy value:
2162kJ/L, wherein calculate pure electric heater parameter in case: water tank volume 60L, water yield 220L.It is right in case to calculate
The normal temperature phase change material electric heater of ratio: when phase variable volume heat enthalpy value is 350kJ/L, the volume of phase transformation electric heater is 35L (phase
Than the volume of pure electric heater, the water yield requirement of 220L is just able to satisfy when the volume range of decrease is about 40%).High temperature phase change material (pcm)
104 electric heaters: 1. calculation shows that 104 volume of high temperature phase change material (pcm) is 7L, heat-barrier material volume is 2L (when heat-barrier material is thermally conductive
When coefficient is 0.01W/K/m, phase-change material and heat-barrier material interface 7 may make to arrive the temperature of heat-barrier material and water route interface 8
Degree becomes less than 100 DEG C of temperature by 875 DEG C), i.e. when the total volume 9L of heat-barrier material and phase-change material, just it is able to satisfy water heater
The requirement of 220L water yield, the 35L of opposite normal temperature phase change material water heater volume, further reduces volume 26L.2. at this time
The coefficient of heat transfer of water side is easier to reach design requirement (no more than 1kW/m2/K)。
In one embodiment of the invention, it is preferable that first shell 102, thermal insulation layer 108, second shell 110 shape
It is spherical or rectangular.
As shown in figures 1 and 3, in this embodiment, first shell 102, thermal insulation layer 108, second shell 110 shape be
It is spherical or rectangular, on the one hand reduce whole 1 volume of electric water heater system, reduce production cost, and makes entirety more
It is beautiful；On the other hand cold water is come into full contact with thermal insulation layer 108, so that the cold water of each position is cooled uniformly,
And then the speed of heat transmitting is accelerated, improve the heat exchange efficiency of electric heater.
In one embodiment of the invention, it is preferable that when first shell 102, thermal insulation layer 108, second shell 110 shape
When shape is spherical, water flow road 112 is ring spherical channel.
In this embodiment, water flow has the inflow of water inlet 1102, flows to water outlet 1104 through water flow road 112, works as first shell
Body 102, thermal insulation layer 108, second shell 110 shape when being spherical, water flow road 112 is ring spherical channel, increase water flow with
The contact area of thermal insulation layer 108, to improve the heat exchange efficiency of electric water heater system 1.
In one embodiment of the invention, it is preferable that first shell 102, thermal insulation layer 108, second shell 110 shape
When being rectangular, the ratio of full-size and minimum dimension in rectangular length is less than or equal to 2.
In this embodiment, water flow is entered by water inlet 1102, is changed through high temperature phase change material (pcm) 104 and thermal insulation layer 108
It is flowed out after heat absorption heat by water outlet 1104.Wherein first shell 102, thermal insulation layer 108, second shell 110 shape be
When rectangular, the ratio of full-size and minimum dimension in rectangular length is less than or equal to 2, to further reduce
The volume of electric water heater system 1 reduces production cost, while improving heat exchange efficiency when heating again.
In one embodiment of the invention, it is preferable that be provided between the shell and first shell 102 of thermal insulation layer 108
First dowel 120；The second dowel 122 is provided between the shell and second shell 110 of thermal insulation layer 108；Wherein, second connects
It connects muscle 122 and is located at outside corresponding with the first dowel 120.
As shown in figure 4, in this embodiment, since high temperature phase change material (pcm) 104 can generate higher temperature, and in thermal insulation layer
108 shell and the first dowel 120 is provided between first shell 102；The shell and second shell 110 of thermal insulation layer 108
Between be provided with the second dowel 122, enhance reliability and stabilization between thermal insulation layer 108 and the first shell and second housing
Property, avoids the mistake high temperataure phenomena in heating process, and then avoid that vaporizing occurs in the cold water being heated in heating process shows
As.
In one embodiment of the invention, it is preferable that the both sides of the edge of the first dowel 120 and the second dowel 122
The angle value range that line is formed is 10 degree to 30 degree.
As shown in figure 5, in this embodiment, heater 106 heats high temperature phase change material (pcm) 104, make the high warm of its deposit
Amount, ladder setting is presented in the temperature that the setting of thermal insulation layer 108 transmits it to water flow road 112, by the first dowel 120 and second
The both sides of the edge line of dowel 122 forms angle, connects the first dowel 120 and the second dowel 122 relatively reliable,
And the angle value range is set as between 10 degree to 30 degree, further ensures the reliability of connection, thus ensure that every
The reliability of thermosphere 108 avoids the mistake high temperataure phenomena in heating process, and then avoids the cold water being heated in heating process
The phenomenon that vaporizing.
In one embodiment of the invention, it is preferable that thermal insulation layer 108 is vacuum heat-insulating layer 108.
In this embodiment, the thermal insulation layer 108 of vacuum can be effectively reduced heat transfer, to make the appearance of thermal insulation layer 108
Layer temperature is lower than 100 DEG C, avoids the mistake high temperataure phenomena in heating process, and then avoid the cold water being heated in heating process
The phenomenon that vaporizing.Wherein, the outer surface of vacuum heat-insulating layer 108 is preferably the smooth spherical surface with mirror-reflection effect.
In one embodiment of the invention, it is preferable that high temperature phase change material (pcm) 104 includes 1042 He of first layer phase-change material
Second layer phase-change material 1044 outside first layer phase-change material 1042 is set.
As shown in fig. 6, in this embodiment, the thermal conductivity ratio room temperature material of high temperature phase change material (pcm) 104 is up to several times, increase
The heat exchange efficiency of phase-change material is added.Phase-change material is divided into two layers, so that phase-change material itself is formed a temperature step, to keep away
Exempt from the mistake high temperataure phenomena in heating process, and then avoids the phenomenon that cold water being heated in heating process vaporizes.
In one embodiment of the invention, it is preferable that heater 106 is arranged in first layer phase-change material 1042 and second
At the interface of layer phase-change material 1044.
As shown in fig. 6, in this embodiment, high temperature phase change material (pcm) 104 divides to be arranged for two layers, and the setting of heater 106 is the
At the interface of one layer of phase-change material 1042 and second layer phase-change material 1044, make first layer phase-change material 1042 and second layer phase
Become the heat accumulation simultaneously of material 1044, and then improves the heat exchange efficiency of phase-change material.Wherein, first layer phase-change material 1042 and second
The interface of layer phase-change material 1044 is the heating surface of spontaneous heating.
In one embodiment of the invention, it is preferable that heater 106 is electric heating wire, microwave applicator 106 or electromagnetism
Heater 106.
As shown in figure 8, in this embodiment, heater 106 is electric heating wire, microwave applicator 106 or electromagnetic heater
106, and then high temperature phase change material (pcm) 104 is heated, it ensure that the safety of electric water heater system 1；Wherein, work as high-temperature phase-change
When material is divided into two layers, heater is placed between two layers, while the interface of two layers of phase-change material can be spontaneous heating
Heating surface, specifically, can be microwave or electromagnetic heating.
In one embodiment of the invention, it is preferable that further include temperature control system 124, be connected with heater 106, use
In the switch of control heater 106.
As shown in fig. 7, in this embodiment, the switch of heater 106 is controlled by temperature control system 124, and then control
The temperature of high temperature phase change material (pcm) 104 not only avoids the mistake high temperataure phenomena in heating process, it is thus also avoided that added in heating process
The phenomenon that cold water of heat vaporizes, improves the safety of electric water heater system 1.
In one embodiment of the invention, it is preferable that temperature control system 124 includes: temperature sensor, for detecting high temperature
Central temperature, 102 temperature of first shell, 108 temperature of thermal insulation layer of phase-change material 104；And switch controller, with temperature sensing
Device is connected, the switch of the temperature control heater 106 for being detected according to temperature sensor.
In this embodiment, temperature sensor is used to detect central temperature, the first shell 102 of high temperature phase change material (pcm) 104
Temperature, 108 temperature of thermal insulation layer, switch controller are connected with temperature sensor, the temperature for being detected according to temperature sensor
The switch of heater 106 is controlled, and then improves the safety and reliability of electric water heater system 1, is avoided in heating process
Mistake high temperataure phenomena, and then avoid the phenomenon that cold water being heated in heating process vaporizes.
In one embodiment of the invention, it is preferable that water inlet pipe 114 is connected with water inlet 1102；Spray equipment
118, it is arranged in second shell 110, is connected with water inlet pipe 114；Outlet pipe 116 is connected with water outlet 1104.
As shown in Figure 1, in this embodiment, water inlet pipe 114 is connected with water inlet 1102, outlet pipe 116 and water outlet
1104 are connected, and spray equipment 118 sprays the cold water flowed by water inlet 1102, heat exchange efficiency is accelerated, to make cold
Water thermally equivalent guarantees that the coolant-temperature gage of different location is identical.
In one embodiment of the invention, it is preferable that the latent heat of phase change of high temperature phase change material (pcm) 104 is greater than 1800KJ/L；
The phase transition temperature of high temperature phase change material (pcm) 104 is greater than 500 DEG C.
In this embodiment, 104 latent heat of phase change of high temperature phase change material (pcm) is greater than 1800KJ/L；The phase of high temperature phase change material (pcm) 104
Temperature is greater than 500 DEG C, so that the energy storage density of electric water heater system 1 increases, to further reduce the volume of water heater.
In one embodiment of the invention, it is preferable that be provided with heat-barrier material in thermal insulation layer 108；Heat-barrier material includes:
Aeroge, VIP, HVIP.
In this embodiment, heat-barrier material is provided in thermal insulation layer 108；Heat-barrier material is preferably aeroge, VIP, HVIP,
The material of height insulation makes to form biggish temperature step to 108 outer surface of thermal insulation layer by phase-change material, to ensure that electric hot water
The safety and reliability of device system 1 avoids the mistake high temperataure phenomena in heating process, and then avoids and added in heating process
The phenomenon that cold water of heat vaporizes.
Second embodiment of the invention proposes a kind of water heater, because including electric heater described in one embodiment
System 1, therefore, whole advantageous effects with the electric water heater system 1.
In the present invention, the terms such as term " installation ", " connected ", " connection ", " fixation " shall be understood in a broad sense, for example,
" connection " may be fixed connection or may be dismantle connection, or integral connection；" connected " can be directly connected,
It can be indirectly connected through an intermediary.For the ordinary skill in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of electric water heater system characterized by comprising
First shell is provided with high temperature phase change material (pcm) in the first shell；
Heater, for being heated to the high temperature phase change material (pcm)；
Thermal insulation layer is set in the outside of the first shell；
Second shell is set in outside the thermal insulation layer, forms water between the second shell and the extexine of the thermal insulation layer
Flow path is provided with inlet and outlet in the second shell；
Wherein, when system heat accumulation, the heater heats the high temperature phase change material (pcm)；When system heat release, cold water
From water flow road described in the water inlet, after the thermal insulation layer and the high temperature phase change material (pcm) carry out heat exchange, from it is described go out
Mouth of a river discharge.
2. electric water heater system according to claim 1, which is characterized in that
The first shell, the thermal insulation layer, the second shell shape be spherical or rectangular.
3. electric water heater system according to claim 2, which is characterized in that
When the shape of the first shell, the thermal insulation layer, the second shell is spherical, the water flow road is logical for global shape
Road.
4. electric water heater system according to claim 2, which is characterized in that
When the shape of the first shell, the thermal insulation layer, the second shell is rectangular, in the rectangular length
Full-size and minimum dimension ratio be less than or equal to 2.
5. electric water heater system according to claim 1, which is characterized in that
The first dowel is provided between the shell of the thermal insulation layer and the first shell；
The second dowel is provided between the shell of the thermal insulation layer and the second shell；
Wherein, second dowel is located at outside corresponding with first dowel.
6. electric water heater system according to claim 5, which is characterized in that
The angle value range that the both sides of the edge line of first dowel and second dowel is formed is 10 degree to 30
Degree.
7. electric water heater system according to any one of claim 1 to 6, which is characterized in that
The thermal insulation layer is vacuum heat-insulating layer.
8. electric water heater system according to any one of claim 1 to 6, which is characterized in that
The high temperature phase change material (pcm) includes first layer phase-change material and the second layer that is arranged in outside the first layer phase-change material
Phase-change material.
9. electric water heater system according to claim 8, which is characterized in that
The heater is arranged at the interface of the first layer phase-change material and the second layer phase-change material.
10. electric water heater system according to claim 9, which is characterized in that
The heater is electric heating wire, microwave applicator or electromagnetic heater.
11. electric water heater system according to any one of claim 1 to 6, which is characterized in that further include:
Temperature control system is connected with the heater, for controlling the switch of the heater.
12. electric water heater system according to claim 11, which is characterized in that
The temperature control system includes:
Temperature sensor, for detecting central temperature, the first shell temperature, the thermal insulation layer of the high temperature phase change material (pcm)
Temperature；And
Switch controller is connected with the temperature sensor, and the temperature for being detected according to the temperature sensor controls institute
State the switch of heater.
13. electric water heater system according to any one of claim 1 to 6, which is characterized in that further include:
Water inlet pipe is connected with the water inlet；
Spray equipment is arranged in the second shell, is connected with the water inlet pipe；
Outlet pipe is connected with the water outlet.
14. electric water heater system according to any one of claim 1 to 6, which is characterized in that the high temperature phase change material (pcm)
Latent heat of phase change be greater than 1800KJ/L；
The phase transition temperature of the high temperature phase change material (pcm) is greater than 500 DEG C.
15. electric water heater system according to any one of claim 1 to 6, which is characterized in that setting in the thermal insulation layer
There is heat-barrier material；
The heat-barrier material includes: aeroge, VIP, HVIP.
16. a kind of electric heater, which is characterized in that including the electric water heater system as described in any one of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710406676.4A CN108981164A (en) | 2017-06-02 | 2017-06-02 | Electric water heater system and electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710406676.4A CN108981164A (en) | 2017-06-02 | 2017-06-02 | Electric water heater system and electric heater |
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| Publication Number | Publication Date |
|---|---|
| CN108981164A true CN108981164A (en) | 2018-12-11 |
Family
ID=64502040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710406676.4A Pending CN108981164A (en) | 2017-06-02 | 2017-06-02 | Electric water heater system and electric heater |
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| Country | Link |
|---|---|
| CN (1) | CN108981164A (en) |
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|---|---|---|---|---|
| CN2417428Y (en) * | 2000-03-17 | 2001-01-31 | 江永清 | Electric energy conversion and storage device |
| CN1554900A (en) * | 2003-12-22 | 2004-12-15 | 清华大学 | Heat storage electric water heater |
| CN2695868Y (en) * | 2004-04-19 | 2005-04-27 | 钱熙 | Solar vacuum ball shaped water heater |
| US20090004962A1 (en) * | 2007-06-29 | 2009-01-01 | Airdri Limited | Air displacing device |
| CN104896984A (en) * | 2015-05-26 | 2015-09-09 | 东南大学 | Solar-assisted valley energy solid phase change heat storage device |
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2017
- 2017-06-02 CN CN201710406676.4A patent/CN108981164A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2417428Y (en) * | 2000-03-17 | 2001-01-31 | 江永清 | Electric energy conversion and storage device |
| CN1554900A (en) * | 2003-12-22 | 2004-12-15 | 清华大学 | Heat storage electric water heater |
| CN2695868Y (en) * | 2004-04-19 | 2005-04-27 | 钱熙 | Solar vacuum ball shaped water heater |
| US20090004962A1 (en) * | 2007-06-29 | 2009-01-01 | Airdri Limited | Air displacing device |
| CN104896984A (en) * | 2015-05-26 | 2015-09-09 | 东南大学 | Solar-assisted valley energy solid phase change heat storage device |
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Application publication date: 20181211 |
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