CN109442552A - A kind of phase transformation electric heating system - Google Patents
A kind of phase transformation electric heating system Download PDFInfo
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- CN109442552A CN109442552A CN201811519241.1A CN201811519241A CN109442552A CN 109442552 A CN109442552 A CN 109442552A CN 201811519241 A CN201811519241 A CN 201811519241A CN 109442552 A CN109442552 A CN 109442552A
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- heat
- electric heating
- heating system
- radiator
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- 238000005485 electric heating Methods 0.000 title claims abstract description 37
- 230000009466 transformation Effects 0.000 title claims abstract description 37
- 238000009825 accumulation Methods 0.000 claims abstract description 46
- 239000012071 phase Substances 0.000 claims description 61
- 239000000463 material Substances 0.000 claims description 51
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 230000008859 change Effects 0.000 claims description 38
- 239000000919 ceramic Substances 0.000 claims description 31
- 238000003860 storage Methods 0.000 claims description 29
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 239000012188 paraffin wax Substances 0.000 claims description 19
- 239000012074 organic phase Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 11
- 230000017525 heat dissipation Effects 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 206010037660 Pyrexia Diseases 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 235000012241 calcium silicate Nutrition 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011494 foam glass Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011863 silicon-based powder Substances 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000012782 phase change material Substances 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 claims description 2
- 239000010451 perlite Substances 0.000 claims 1
- 235000019362 perlite Nutrition 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 11
- 238000004146 energy storage Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 18
- 238000001816 cooling Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229940057995 liquid paraffin Drugs 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011383 glass concrete Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/04—Electric heating systems using electric heating of heat-transfer fluid in separate units of the system
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/023—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Central Heating Systems (AREA)
Abstract
The invention discloses a kind of phase transformation electric heating systems, belong to the technical field of electric heating equipment, including the cabinet in hollow structure and both ends open, flat heater electric furnace, phase-change accumulation energy device, radiator and convection current window have been sequentially arranged by its bottom nozzle to top ports in the cabinet, there are gap between the inner wall of cabinet and the phase-change accumulation energy device, the gap, the bottom nozzle and the top ports three form convection channel；The radiator is located in convection channel, and be connected between convection channel and the convection current window, energy storage can be heated in the paddy electricity period to reach, in peak potential period heat release, peak load shifting can be played and make full use of electric power resource, adequately to utilize the purpose of a large amount of paddy electricity resources in China.
Description
Technical field
The invention belongs to the technical fields of electric heating equipment, in particular to a kind of phase transformation electric heating system.
Background technique
Electric heating is a kind of high-quality, comfortable and environmentally friendly heating system that clean electric energy is converted to thermal energy, through too long
The practical application of phase is proved that it possesses the incomparable superiority of a lot of other heating systems, by global more and more
User's approval and receiving.
Existing directly heating electric heater haves the defects that certain, it may be assumed that when the peak of power consumption period warms oneself, can increase rapidly power grid
Peak power load, it is very unfavorable to electric power netting safe running.
Heat storing type electric heating, can also can be used as the supplement of other Heat productions, heat storage type separately as user heating form
Electricity heating heats heat accumulation component, heat is stored in the low power consumption period.Peak potential period is kept away without the heating that is powered
Peak period electricity consumption is exempted from, compared to directly heating electric heater is used, has been avoided that and increases power grid peak power load.
In the case where the valuation of electricity price peak and valley time, is warmed oneself using heat storing type electric, saving heating cost can be played, still,
Heat storing type electric on the market warms oneself it there are unreasonable structural design at present, more many and diverse defect during practice.
Summary of the invention
In view of this, in order to solve the above problems existing in the present technology, the purpose of the present invention is to provide a kind of phase transformations
Heat accumulation Electric heater it is sufficiently sharp can to play peak load shifting in peak potential period heat release in the heating energy storage of paddy electricity period to reach
With electric power resource, adequately to utilize the purpose of a large amount of paddy electricity resources in China.
The technical scheme adopted by the invention is as follows: a kind of phase transformation electric heating system, including opened in hollow structure and both ends
The cabinet of mouth, the cabinet is interior to be sequentially arranged flat heater electric furnace, phase-change accumulation energy device, radiator by its bottom nozzle to top ports
With convection current window, there are gap, the gap, the bottom nozzle and the tops between the inner wall of cabinet and the phase-change accumulation energy device
Mouth three forms convection channel；The radiator is located in convection channel, and is connected between convection channel and the convection current window.
Further, the flat heater electric furnace includes flat plate machine box, is equipped at least one in the flat plate machine box
Electric ceramic heaters, and heat preservation filler is coated with around electric ceramic heaters；Around the flat plate machine box be equipped with under-chassis, and under-chassis with it is described
Cabinet assembly connection.
Further, the heat preservation filler is expanded perlite powder, litaflex, diatomite, glass fibre, foam glass
Any one in glass concrete, calcium silicates and composition silicate.
Further, the electric ceramic heaters include adiabatic disks and the fever tablet that is placed in inside adiabatic disks, and the adiabatic disks are by resistance to
Fiery material is made.
Further, the phase-change accumulation energy device includes phase change medium, heat-barrier material and storage tank open at one end, the storage tank
Open end be equipped with ring flange, assembly connection between ring flange and the radiator；The phase change medium is filled in storage tank, and
The outside of storage tank is coated with the heat-barrier material.
Further, the phase change medium is made of organic phase change material and Heat Conduction Material mixing.
Further, the organic phase change material is paraffin or stearic acid；The Heat Conduction Material is copper powder, silicon powder, micro-nano
Rice graphite composite powder, toner body, any one in carbon fiber, carbon nanotube, foam copper, foamed aluminium and foamed iron；The heat-insulated material
Material is aerosil felt or alumina silicate fiber felt.
Further, it is in close contact between the bottom surface of the radiator and the phase change medium；The radiator includes dissipating
Hot bottom plate and several cooling fins being evenly arranged on the radiating bottom plate.
Further, the convection current window is provided with movable louvre window.
Further, the movable louvre window includes several pairs of rotation axis, and each pair of rotation axis includes two rotation axis,
Two rotation axis are symmetrically set in the opposite sides of the convection current window and between two rotation axis equipped with louvre blade.
The invention has the benefit that
1. using phase transformation electric heating system disclosed in this invention, added by the way that plate is arranged in the bottom of phase-change accumulation energy device
Electrothermal stove is simultaneously carrying out heating energy storage to its paddy electricity period, and then passes through phase-change accumulation energy device release heat, heat in peak potential period
When being distributed by radiator, the cold air inside convection channel heat and radiate by convection current window, with
It realizes and carries out effective heat supply in peak potential period, electric power resource is made full use of, peak load shifting can be played the role of, sufficiently benefit
With a large amount of paddy electricity resources in China.
2. the present invention constitutes entire phase-change thermal storage by flat heater electric furnace, phase-change accumulation energy device, radiator and convection current window
Electric heater can be transferred into region without power supply capacity and carry out heat supply, especially some military battlefields it is urgent
Heat supply command post, the dedicated base for succouring the wounded etc. are needed, phase transformation electric heating system can be promoted to obtain wide popularization and application.
3. being coated with thermal insulation material around electric ceramic heaters, the calorific value of electric ceramic heaters can be made to orient to phase-change accumulation energy device side
To being conducted, effectively to be heated to phase-change accumulation energy device, reduce the loss to heat.
4. being made of phase change medium organic phase change material and Heat Conduction Material mixing in phase-change accumulation energy device, organic phase-change material
The heat of fusion of material is big, and a large amount of heat can be discharged in phase transformation；And Heat Conduction Material can improve organic phase change material thermal conductivity
The poor defect of energy, the phase change medium formed mixed by the two can either play good energy storage effect, and can be good by heat
Good conduction is to radiator, to realize the effect of final heat supply.
5. being equipped with movable louvre window in convection current window, in specifically used process, work is suitably adjusted according to room temperature
The angle of blinds in dynamic shutter, to adjust the convection coefficient between radiator and convection channel, to reach the heat dissipation of radiator
Amount progress is flexibly adjustable, and degree easy to use to this phase transformation electric heating system is further promoted.
Detailed description of the invention
Fig. 1 is the overall structure diagram of phase transformation electric heating system provided by the invention；
Fig. 2 is the schematic top plan view of phase transformation electric heating system provided by the invention；
Fig. 3 is the A-A of Fig. 1 to schematic cross-sectional view；
Fig. 4 is the schematic top plan view of flat heater electric furnace in phase transformation electric heating system provided by the invention；
Fig. 5 is the B-B direction schematic cross-sectional view of Fig. 4；
Fig. 6 is the schematic diagram of internal structure of phase-change accumulation energy device in phase transformation electric heating system provided by the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the embodiment of the present invention, it should be noted that indicating position or positional relationship is based on shown in attached drawings
The orientation or positional relationship invention product using when the orientation or positional relationship usually put or this field
Orientation or positional relationship that technical staff usually understands or the invention product using when the orientation usually put or position close
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " the
One ", " second " is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of the embodiment of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term
" setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be and be directly connected to, can also be indirectly connected with by intermediary.For the ordinary skill in the art, may be used
The attached drawing in the concrete meaning type embodiment of above-mentioned term in the present invention is understood with concrete condition, in the embodiment of the present invention
Technical solution is clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than complete
The embodiment in portion.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can be with a variety of different configurations
To arrange and design.
Embodiment 1:
As shown in figs 1 to 6, a kind of phase transformation electric heating system is specifically provided in the present embodiment, including is in hollow knot
The cabinet 6 of structure and both ends open, the rectangular structure of cabinet 6 and the bearing structure as phase transformation electric heating system, in it
Portion arranges all parts to meet the functional requirement to phase transformation electric heating system.
Flat heater electric furnace 1 has been sequentially arranged by its bottom nozzle to top ports in the cabinet 6, phase-change accumulation energy device 2, has been dissipated
Hot device 4 and convection current window 5, flat heater electric furnace 1 heat phase-change accumulation energy device 2, to realize that phase-change accumulation energy device 2 carries out effectively
Heat accumulation, convection current window 5 are mainly used for giving off heat in external environment.The inner wall of the cabinet 6 and the phase-change accumulation energy device 2
Between there are gap, the gap, the bottom nozzle and the top ports three form convection channel, and indoor cold air is through convection current
When channel is rising from bottom to top, from being flowed from the convection current window 5 that the top ports of cabinet 6 are installed after the bottom nozzle air inlet of cabinet 6
Out, and in the centre of convection channel it is exchanged heat by radiator 4, forms circulative convection heat exchange, 2 inside of phase-change accumulation energy device is deposited
It is discharged after the heat and exchange of cold air of storage, to carry out the effect of heat supply to external environment；The radiator 4 is located to circulation
In road, radiator 4 after the heat for delivering phase-change accumulation energy device 2, radiator 4 can with the cold air inside convection channel into
The effective heat exchange of row, and be connected between convection channel and the convection current window 5, the cold air inside convection channel carries out hot friendship
Hot-air is converted to after changing, hot-air is discharged out of convection current window 5.
The flat heater electric furnace 1 includes flat plate machine box 1-3, sets that there are three electric ceramic heaters in the flat plate machine box 1-3
Spacing between 1-1 and adjacent two electric ceramic heaters 1-1 is equal, and electric ceramic heaters 1-1 quantity is the power according to phase transformation electric heating system
Be coated with determined by capacity, and around electric ceramic heaters 1-1 heat preservation filler 1-2, why by electric ceramic heaters 1-1 be set to flat plate machine
It in box 1-3, is influenced in order to avoid the high temperature of electric ceramic heaters 1-1 generates high temperature to the facility around equipment；The flat plate machine box
1-3 is set as rectangular housing open at one end, filled with heat preservation filler 1-2 between electric ceramic heaters 1-1 and the inner wall of rectangular housing, and
The surface of heat preservation filler 1-2 is rammed flat, on the one hand, can play good stabilization to electric ceramic heaters 1-1, prevent electric ceramic heaters 1-1
It loosens in use；On the other hand, the calorific value of electric ceramic heaters 1-1 can be oriented to 2 direction of phase-change accumulation energy device
Conduction, to guarantee that phase-change accumulation energy device 2 is able to carry out good heat accumulation.Under-chassis 3, machine are housed around the flat plate machine box 1-3
Foot 3 set there are four and four under-chassis 3 with 6 assembly connection of cabinet, meanwhile, under-chassis 3 can also play flat plate machine box 1-3
Good supporting role promotes the stability of entire phase transformation electric heating system.Preferably, when flat plate machine box 1-3 passes through four
A under-chassis 3 is assemblied in the bottom nozzle of the cabinet 6, and flat plate machine box 1-3 should between the bottom nozzle of the cabinet 6 there are
Gap forms convected air in cabinet 6 to realize.
It is expanded perlite powder that the heat preservation filler 1-2, which is selected, the frequent warm thermal coefficient of expanded perlite powder
0.0245~0.048W/ (mK), 0.058~0.175W/ of Thermal Conductivity at High Temperature (mK), Measurement of Low Temperature Thermal Conductivity 0.028~
0.038W/ (mK), is used as high-efficiency insulated, cold insulation outstanding packing material by 800 DEG C of maximum operation (service) temperature.
The electric ceramic heaters 1-1 selects 2016 No. 8 (total No. 173) DB44/ of provincial standard approval publication bulletin
T1932-2016 electric ceramic heaters 1-1, the electric ceramic heaters 1-1 include adiabatic disks and the fever tablet that is placed in inside adiabatic disks, the insulation
Disk is made of refractory material.When fever tablet upon power-up, be able to carry out fever to be heated to the phase-change accumulation energy device 2.
Electric ceramic heaters 1-1 is existing matured product on the market, and application method is also more mature, is not repeating herein.
The phase-change accumulation energy device 2 includes phase change medium 2-1, heat-barrier material 2-2 and storage tank 2-3 open at one end, the storage
Slot 2-3 also rectangular structure is equipped with ring flange in the open end of storage tank 2-3, the screw hole and the radiator 4 on ring flange it
Between by multiple bolts carry out assembly connection, after the radiator 4 is assembled on ring flange, radiator 4 can to circulation right
Air inside circulation road carries out heat exchange；The phase change medium 2-1 is filled in storage tank 2-3, and the external cladding of storage tank 2-3
There is the heat-barrier material 2-2；The phase change medium 2-1 is made of organic phase change material and Heat Conduction Material mixing, in the present embodiment
In, the ratio that organic phase change material and Heat Conduction Material are 1:1 is mixed.Wherein, organic phase change material refers to temperature-resistant
In the case of and change state of matter and the substance of latent heat can be provided, the process for changing physical property is known as phase transition process, this phase
A large amount of latent heat will be absorbed or discharges by becoming material；And Heat Conduction Material is mainly the heating conduction for promoting phase change medium 2-1, to heat
Amount is effectively transmitted.
It is paraffin that the organic phase change material, which is selected, and it is foamed iron that the Heat Conduction Material, which is selected,.Wherein, the advantages of paraffin
Be: heat of fusion is big, and specific heat capacity is 2.14~2.9Jg, and fusing heat is 200~220Jg；And the shortcomings that paraffin, is: leading
Hot coefficient is low, is 0.15W/ (m ﹒ K)；
The porosity of foamed iron is 98%, and the through-hole rate of foamed iron is 95%, and the average pore size of foamed iron hole≤
4mm；Foamed iron density: every cubic metre of 250kg；Foamed iron specific heat: 53.6kJ.kg. DEG C；The thermal coefficient of iron: 41.163W/m
℃
Since the thermal coefficient of foamed iron is 270 times of paraffin, foamed iron large specific surface area forms biggish connect with paraffin
Heat-conducting area is touched, the heating conduction for improving paraffin is played.
Foamed iron porosity reaches 98%, and the paraffin of through-hole rate 95%, melted by heating is filled in the hole of foamed iron, bubble
Foam iron volume reaches 95% containing paraffin, in the volume of mixture of paraffin and foamed iron, contains paraffin 95%, contains foamed iron 5%,
5% foamed iron forms heat conduction network shape structure, and foamed iron functions similarly to the effect of heat-conductive bridges.
After the paraffin of melted by heating is cooling, liquid becomes solid-state, and solid paraffin volume is relatively small, is because of liquid stone
After wax temperature reduces, intermolecular gap becomes smaller, and volume is opposite to be reduced.
When the paraffin of melted by heating is filled in foamed iron hole, liquid paraffin becomes solid paraffin after cooling, due to stone
Wax is distributed in the aperture of foamed iron (diameter≤4mm in the aperture), even if liquid paraffin becomes the reduction of solid paraffin total volume,
But the aperture of foamed iron (diameter≤4mm in the aperture) network-like distribution, cause deformation and the influence of volume-diminished can be with
It ignores.
When being heated again, that is, volume when restoring to liquid underfill, phase change medium 2-1 is filled in the storage tank 2-
After in 3, dissolution liquid of being heated will not be beyond volume when filling, and therefore, the phase change medium 2-1 of expanded by heating is to storage tank 2-
3 risks without spalling.
For paraffin thermal coefficient defect less than normal, improves the thermal conduction characteristic of paraffin by the way that foamed iron is added, be conducive to improve
The thermodynamics comprehensive performance of phase transformation electric heating system can play preferably after mixed heat conducting material in organic phase change material
Effect.
The heat-barrier material 2-2 is aerosil felt, heat-barrier material 2-2 be to the periphery of phase-change accumulation energy device 2 every
The measure of heat, avoids the unordered thermal diffusion of phase-change accumulation energy device 2, and the heat release of phase-change accumulation energy device 2 is made to pass through institute in cabinet 6 to greatest extent
The radiator 4 of installation carries out heat exchange, is more smoothly exported with reaching heating load.
The radiator 4 is assemblied in the open end of the storage tank 2-3, and closed container is constituted between storage tank 2-3, with
Guarantee that the heat inside radiator 4 can release inside storage tank 2-3 and flow through the radiator 4；The bottom of the radiator 4
It is in close contact between face and the phase change medium 2-1, can be carried out to greatest extent between phase change medium 2-1 and radiator 4
It is thermally conductive to carry out hot transmitting；The radiator 4 includes radiating bottom plate and several heat dissipations being evenly arranged on the radiating bottom plate
Piece, each cooling fin are vertical setting relative to the bottom surface of the radiator 4, and multiple cooling fins are capable of increasing heat dissipation area, with
Guarantee the air sufficient heat exchange inside radiator 4 and the convection channel, the specific structure of cooling fin can be according to the actual situation
It is configured, it is preferred that be equipped with several raised ribs on a heat sink, each protrusion rib can play increasing heat radiation area
Effect, with heat radiation ability.
The convection current window 5 is provided with movable louvre window, and the movable louvre window includes several pairs of rotation axis, each right
Rotation axis includes two rotation axis, and two rotation axis are symmetrically set in the opposite sides of the convection current window and two rotation axis
Between be equipped with louvre blade.
In actual use, tune can need to be played by the angle of each louvre blade in the movable blinds gate of adjusting
Save between indoor air and radiator 4 to flow, when each louvre blade is in plumbness, movable blinds gate
Open degree it is maximum；And when each louvre blade inclination angle of movable blinds gate, the meeting of movable blinds gate gradually open degree
Reduce；In use process, the angle of each louvre blade of movable blinds gate is suitably adjusted according to room temperature, it is adjustable
Convection coefficient between radiator 4 and air, the adjustable purpose of heat dissipation capacity to reach radiator 4.
Embodiment 2
As shown in figs 1 to 6, another phase transformation electric heating system is specifically provided in the present embodiment, including in hollow
The cabinet 6 of structure and both ends open, the rectangular structure of cabinet 6 and the bearing structure as phase transformation electric heating system, at it
Inside arrangement all parts are to meet the functional requirement to phase transformation electric heating system.
Flat heater electric furnace 1 has been sequentially arranged by its bottom nozzle to top ports in the cabinet 6, phase-change accumulation energy device 2, has been dissipated
Hot device 4 and convection current window 5, flat heater electric furnace 1 heat phase-change accumulation energy device 2, to realize that phase-change accumulation energy device 2 carries out effectively
Heat accumulation, convection current window 5 are mainly used for giving off heat in external environment.The inner wall of the cabinet 6 and the phase-change accumulation energy device 2
Between there are gap, the gap, the bottom nozzle and the top ports three form convection channel, and indoor cold air is through convection current
When channel is rising from bottom to top, from being flowed from the convection current window 5 that the top ports of cabinet 6 are installed after the bottom nozzle air inlet of cabinet 6
Out, and in the centre of convection channel it is exchanged heat by radiator 4, forms circulative convection heat exchange, 2 inside of phase-change accumulation energy device is deposited
It is discharged after the heat and exchange of cold air of storage, to carry out the effect of heat supply to external environment；The radiator 4 is located to circulation
In road, radiator 4 after the heat for delivering phase-change accumulation energy device 2, radiator 4 can with the cold air inside convection channel into
The effective heat exchange of row, and be connected between convection channel and the convection current window 5, the cold air inside convection channel carries out hot friendship
Hot-air is converted to after changing, hot-air is discharged out of convection current window 5.
The flat heater electric furnace 1 includes flat plate machine box 1-3, and two electricity potteries are equipped in the flat plate machine box 1-3
Furnace 1-1 and two electric ceramic heaters 1-1 are symmetrically arranged in the inside of the flat plate machine box 1-3, and electric ceramic heaters 1-1 quantity is stored up according to phase transformation
It is coated with heat preservation filler 1-2 determined by the power capacity of thermoelectricity heat collector, and around electric ceramic heaters 1-1, why electricity is made pottery
Furnace 1-1 is set in flat plate machine box 1-3, is in order to avoid the high temperature of electric ceramic heaters 1-1 generates high temperature shadow to the facility around equipment
It rings；The flat plate machine box 1-3 is set as rectangular housing open at one end, fills out between electric ceramic heaters 1-1 and the inner wall of rectangular housing
Filled with heat preservation filler 1-2, and the surface for keeping the temperature filler 1-2 is rammed flat, on the one hand, good stabilization can be played to electric ceramic heaters 1-1
Effect, prevents electric ceramic heaters 1-1 from loosening in use；On the other hand, the calorific value of electric ceramic heaters 1-1 can be oriented to institute
The conduction of 2 direction of phase-change accumulation energy device is stated, to guarantee that phase-change accumulation energy device 2 is able to carry out good heat accumulation.The flat plate machine box 1-3's
Around be equipped with under-chassis 3, under-chassis 3 set there are four and four under-chassis 3 with 6 assembly connection of cabinet, meanwhile, under-chassis 3 can also be right
Flat plate machine box 1-3 plays good supporting role, promotes the stability of entire phase transformation electric heating system.Preferably, when flat
Plated box 1-3 is assemblied in the bottom nozzle of the cabinet 6 by four under-chassis 3, and flat plate machine box 1-3 should be with the cabinet
There are gaps between 6 bottom nozzle, form convected air in cabinet 6 to realize.
It is litaflex that the heat preservation filler 1-2, which is selected, be also possible to diatomite, glass fibre, foam glass concrete,
One of which in calcium silicates and composition silicate.
Electric ceramic heaters 1-1 is existing matured product on the market, and application method is also more mature, is not repeating herein.
The phase-change accumulation energy device 2 includes phase change medium 2-1, heat-barrier material 2-2 and storage tank 2-3 open at one end, the storage
Slot 2-3 also rectangular structure is equipped with ring flange in the open end of storage tank 2-3, the screw hole and the radiator 4 on ring flange it
Between by multiple bolts carry out assembly connection, after the radiator 4 is assembled on ring flange, radiator 4 can to circulation right
Air inside circulation road carries out heat exchange；The phase change medium 2-1 is filled in storage tank 2-3, and the external cladding of storage tank 2-3
There is the heat-barrier material 2-2；The phase change medium 2-1 is made of organic phase change material and Heat Conduction Material mixing, in the embodiment
In, organic phase change material and Heat Conduction Material are mixed with the ratio of 2:1.
It is stearic acid that the organic phase change material, which is selected, and it is foamed aluminium that the Heat Conduction Material, which is selected, and Heat Conduction Material may be used also
Any one to be copper powder, silicon powder, micro-nano graphite composite powder, toner body, in carbon fiber, carbon nanotube and foam copper.Wherein,
For organic phase change material thermal coefficient defect less than normal, by the way that Heat Conduction Material is added to improve the thermally conductive spy of organic phase change material
Property, be conducive to improve phase transformation electric heating system thermodynamics comprehensive performance, in organic phase change material mixed heat conducting material it
After can play preferable effect.
The heat-barrier material 2-2 is alumina silicate fiber felt, and heat-barrier material 2-2 is heat-insulated to the periphery of phase-change accumulation energy device 2
Measure avoids the unordered thermal diffusion of phase-change accumulation energy device 2, makes the heat release of phase-change accumulation energy device 2 by being installed in cabinet 6 to greatest extent
Radiator 4 carry out heat exchange, more smoothly exported with reaching heating load.
The radiator 4 is assemblied in the open end of the storage tank 2-3, and closed container is constituted between storage tank 2-3, with
Guarantee that the heat inside radiator 4 can release inside storage tank 2-3 and flow through the radiator 4；The bottom of the radiator 4
It is in close contact between face and the phase change medium 2-1, can be carried out to greatest extent between phase change medium 2-1 and radiator 4
It is thermally conductive to carry out hot transmitting；The radiator 4 includes radiating bottom plate and several heat dissipations being evenly arranged on the radiating bottom plate
Piece, each cooling fin are vertical setting relative to the bottom surface of the radiator 4, and multiple cooling fins are capable of increasing heat dissipation area, with
Guarantee the air sufficient heat exchange inside radiator 4 and the convection channel, the specific structure of cooling fin can be according to the actual situation
It is configured.
The convection current window 5 is provided with movable louvre window, and the movable louvre window includes several pairs of rotation axis, each right
Rotation axis includes two rotation axis, and two rotation axis are symmetrically set in the opposite sides of the convection current window and two rotation axis
Between be equipped with louvre blade.
In actual use, tune can need to be played by the angle of each louvre blade in the movable blinds gate of adjusting
Save between indoor air and radiator 4 to flow, when each louvre blade is in plumbness, movable blinds gate
Open degree it is maximum；And when each louvre blade inclination angle of movable blinds gate, the meeting of movable blinds gate gradually open degree
Reduce；In use process, the angle of each louvre blade of movable blinds gate is suitably adjusted according to room temperature, it is adjustable
Convection coefficient between radiator 4 and air, the adjustable purpose of heat dissipation capacity to reach radiator 4.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all to fall into the claims in the present invention confining spectrum
Technical solution, be within the scope of the present invention.
Claims (10)
1. a kind of phase transformation electric heating system, including the cabinet in hollow structure and both ends open, which is characterized in that the cabinet
It is interior that flat heater electric furnace, phase-change accumulation energy device, radiator and convection current window have been sequentially arranged by its bottom nozzle to top ports, cabinet
There are gaps between inner wall and the phase-change accumulation energy device, and the gap, the bottom nozzle and top ports three composition are to circulation
Road；The radiator is located in convection channel, and is connected between convection channel and the convection current window.
2. phase transformation electric heating system according to claim 1, which is characterized in that the flat heater electric furnace includes plate
Formula machine box, the flat plate machine box is interior to be equipped at least one electric ceramic heaters, and heat preservation filler is coated with around electric ceramic heaters；It is described flat
Under-chassis, and under-chassis and the cabinet assembly connection are housed around plated box.
3. phase transformation electric heating system according to claim 2, which is characterized in that the heat preservation filler is expanded perlite
Any one in powder, litaflex, diatomite, glass fibre, foam glass concrete, calcium silicates and composition silicate.
4. phase transformation electric heating system according to claim 2, which is characterized in that the electric ceramic heaters include adiabatic disks and set
Fever tablet inside adiabatic disks, the adiabatic disks are made of refractory material.
5. phase transformation electric heating system according to claim 1, which is characterized in that the phase-change accumulation energy device includes that phase transformation is situated between
The open end of matter, heat-barrier material and storage tank open at one end, the storage tank is equipped with ring flange, between ring flange and the radiator
Assembly connection；The phase change medium is filled in storage tank, and the outside of storage tank is coated with the heat-barrier material.
6. phase transformation electric heating system according to claim 5, which is characterized in that the phase change medium is by organic phase-change material
Material and Heat Conduction Material mixing composition.
7. phase transformation electric heating system according to claim 6, which is characterized in that the organic phase change material be paraffin or
Stearic acid；The Heat Conduction Material be copper powder, silicon powder, micro-nano graphite composite powder, toner body, carbon fiber, carbon nanotube, foam copper,
Any one in foamed aluminium and foamed iron；The heat-barrier material is aerosil felt or alumina silicate fiber felt.
8. phase transformation electric heating system according to claim 5, which is characterized in that the bottom surface of the radiator and the phase
Become between medium and is in close contact；The radiator includes radiating bottom plate and several heat dissipations being evenly arranged on the radiating bottom plate
Piece.
9. phase transformation electric heating system according to claim 1, which is characterized in that the convection current window is provided with movable
Shutter.
10. phase transformation electric heating system according to claim 9, which is characterized in that if the movable louvre window includes
Dry to rotation axis, each pair of rotation axis includes two rotation axis, and two rotation axis are symmetrically set in opposite the two of the convection current window
Louvre blade is housed on side and between two rotation axis.
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| CN201811519241.1A CN109442552A (en) | 2018-12-12 | 2018-12-12 | A kind of phase transformation electric heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811519241.1A CN109442552A (en) | 2018-12-12 | 2018-12-12 | A kind of phase transformation electric heating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211464A1 (en) * | 2019-04-19 | 2020-10-22 | 张力 | Composite phase change energy storage material and phase change heat storage heating device |
| CN111829051A (en) * | 2019-04-19 | 2020-10-27 | 张力 | Heat storage heating device |
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| CN111829051A (en) * | 2019-04-19 | 2020-10-27 | 张力 | Heat storage heating device |
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