CN2596305Y - Phase changing heat storage electric heating heat supply air conditioner - Google Patents
Phase changing heat storage electric heating heat supply air conditioner Download PDFInfo
- Publication number
- CN2596305Y CN2596305Y CN02285241U CN02285241U CN2596305Y CN 2596305 Y CN2596305 Y CN 2596305Y CN 02285241 U CN02285241 U CN 02285241U CN 02285241 U CN02285241 U CN 02285241U CN 2596305 Y CN2596305 Y CN 2596305Y
- Authority
- CN
- China
- Prior art keywords
- heat
- electric heating
- air
- storage
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The utility model relates to a cabinet type electric heating heat supply air conditioner for air supply having the function of heat storage by using valley electricity, which integrally concentrates electric heating, heat storage, forcing heat exchange, heat transfer with heat pipes, and thermal insulation. The utility model which is a cuboid is composed of a shell, a thermal insulating layer, a phase changing heat storage casing, phase changing heat storage material, a heat exchanging coil pipe, a heating casing pipe, an electric heating pipe, a heat conducting fin, a heat pipe radiator, a temperature sensor, a controller, a bottom bracket, an axial flow blower, a volute of the blower, an air return port, an air outlet, an air regulating shutter, etc. Valley heat storage and indoor heat supply can be realized according to a control program. The utility model has the advantages of convenient installation, small ground space occupation, low operation expense, etc. The utility model can be used for the heat supply in living rooms, classrooms, meeting rooms, workshops, factory buildings, etc., and can play roles in shifting peaks and filling valleys, regulating load and saving electricity, reducing expenses, etc.
Description
Affiliated field:
The utility model relates to a kind of current collection heating, accumulation of heat, forced heat-exchanging, adopting heat pipes for heat transfer, fan coil end, is incubated the cabinet type electric heating air supply air-conditioner that has low ebb electricity heat accumulation function in one, especially relates to a kind of electric heating device that can utilize the low ebb electricity to carry out high density phase change heat storage, heat pipe phase-change heat transfer, heat exchange.
At present, China's power industry developed rapidly in recent years, but the power supply shortage situation do not taken on a new look at all, and mainly show: the network load rate is low, and system's peak-valley difference is apart from big, and urban life, commercial electricity consumption increase fast, and commercial power proportion reduces relatively.
This live telecast has promoted the development of comprehensive utilization of energy technology, and heat storage technology is one of its most critical technology.Heat storage technology is meant: in the low power consumption period energy that the low price electric energy converts hot form to is stored, with discharging level, peak period the technology that is reused, transfer to reach that lotus is energy-conservation, peak load shifting, reduction electric power operation cost, user's the energy operating cost that reduces, rationally use purpose such as high-quality clear energy sources efficiently.
The heat storage technology that is generally adopted mainly contains at present: water at atmospheric pressure accumulation of heat and high-temperature water accumulation of heat, solid phase high-temperature heat accumulation.Because latent heat of melting (80cal/g) and the latent heat of vaporization latent heats of phase change such as (539cal/gs) 100 ℃ time of water in the time of 0 ℃ is all bigger, but volume density (1g/ml) and specific heat (1cal/g. ℃) are less, so the latent heat of water, sensible heat thermal storage density are little, it all is to utilize the sensible heat characteristic that water is cooked the medium accumulation of heat: water at atmospheric pressure accumulation of heat and high-temperature water heat storage technology are the temperature difference sensible heat characteristics of utilizing water, thermal storage density is little, the steam accumulation of heat is the latent heat of vaporization of utilizing water, though heat of vaporization is big, but vapour density is little, the pressure height is so relative thermal storage density is little; The solid phase high-temperature heat accumulation is with electric heating tube the formed solid material to be heated to 400-700 ℃, by the high temperature heat exchange heat that stores discharged again, and its heat-exchanger rig complexity, pressure height, poor safety performance, the insulation difficulty is big, and heat loss is big.
In order to overcome all deficiencies of above-mentioned hot-water supply, the invention provides a kind of incorporated high density phase transformation energy accumulation power consumption heating technology and device.This invention not only relates to a kind of special phase change heat storage material; And relate to the crawl design of coil pipe of a kind of red copper of handling through special processing with higher exchange capability of heat; Also relate to a kind of device design that can carry out Fast Installation and move; The heat that produces when also relating to a kind of heating tube can the energising simultaneously evenly is delivered to the metal fin design of phase change heat storage material; Yet relate to a kind of temperature-time controller design that can carry out Automatic Control.The incorporated high density phase transformation energy accumulation power consumption that is designed and manufactured into thus heating cabinet air-conditioner not only can independently heat, and can also be flapped toward by the fan blade that adjusts the air port and carry out wind direction and regulate, the unlatching by the control blower fan and close down the control indoor temperature; Also have low ebb electricity heat accumulation function, reduced initial cost and operating cost widely, improved security and comfortableness.Fundamentally solved water at atmospheric pressure accumulation of heat and conventional regenerative apparatus such as high-temperature water accumulation of heat, solid phase high-temperature heat accumulation intrinsic volume big, problem and shortcomings such as pressure is high, initial cost is high, cost of use is high, poor safety performance.。
Fig. 1 is a vertical section of the present utility model structural map.
Among Fig. 1: 1. shell, 2. heat-insulation layer, 3. air outlet, 4. return air inlet, 5. air outlet blinds, 6. blower fan heat-pipe radiator, 7. heat transfer heat pipe, 8. volute of blower, 9. blower fan, 10. temperature sensor, 11. the phase-transition heat-storage housing, 12. accumulation of heat chamber reinforcements, 13. phase change heat storage materials, 14. heating muff, 15. heat-conducting metal fins, 16. electric heating tubes, 17. the accumulation of energy heat exchange coil, 18. phase transition temperature sensors, 19. temperature-time controllers.
The technical scheme in the invention for solving the above technical problem is: at the inboard 10mm thick insulation layer (2) of pasting of shell (1), adjustable air outlet (3) is established in the front upper place, and fixedly blinds air inlet (4) is established at the middle part; In phase-transition heat-storage housing (11), heat-conducting metal fin (15) vertically is through on the heating muff (14) concurrently, be 3 row, 4 row and divide layout, be distributed with the snakelike bronze pan tube of u word (17) between row and between fin (15) and housing (11), and walk connection with c type elbow, the two ends of coil pipe (17) link to each other with the two ends of heat-pipe radiator (6) respectively, establish volute of blower (8) and axial flow centrifugal blower (9) between heat storage (11) and heat-pipe radiator (6); The two ends of heating muff (14) are passed and are welded on the left and right sides metallic plate of phase-transition heat-storage housing (11), and the cavity of formation is full of phase change heat storage material (13), and its middle part is provided with temperature sensor (18); Electric heating tube (16) is through in the heating muff (14), is electrically connected with time-temperature controller (19) by lead.
Operation principle of the present utility model and workflow are:
Heat-accumulating process: in the low power consumption period, time-temperature controller (19) control electric heating tube (16) is by heating muff (14) heating fin (15), be delivered in the phase-change material (13) by uniform fin (15) diffusion again, the temperature of phase-change material (13) raises gradually, do not store sensible heat in the past reaching phase transition temperature-fusing point, lattice variations----latent heat of phase change takes place after obtaining enough heats in phase-change material gradually, phase transformation finish and when reaching design temperature heat-accumulating process finish.
Heat release heating process: electric heating tube (16) stops heating, heat stored in its phase-change material (13) is delivered in the heat pipe (7) by uniform heat transmission fin (15) and the snakelike heat exchange bronze pan tube of u word (17), the temperature of heat-pipe radiator and the temperature in the heat storage are consistent, room air is heated to temperature required by blower fan (9) forced ventilation, lattice variations----takes place and solidifies in phase change heat storage material (13) gradually, after discharging the latent heat of being deposited, its temperature begins to descend and discharge sensible heat, when reaching the temperature (45 ℃) of regulation, the heat release process finishes.
The beneficial effects of the utility model are, can by electric heating tube, heating muff and, heat transmission fin, heat exchange Heat Transfer of Heat Pipe on Heat Pipe finish two kinds of functions of accumulation of heat, heat supply of phase-change material, compact conformation, safety and stability is reliable.
Below in conjunction with drawings and Examples the utility model is further specified.
100 square meter phase-transition heat-storage electric heating air-conditionings shown in Figure 1, can realize:
1. continuous heating 10h under the situation that need not heat, its operation principle:
In the low power consumption period, time-temperature controller (19) control general power is that the electric heating tube (16) of 9000W passes through heating muff (14) and fin (15) heating phase-change material (13), the temperature of phase-change material (13) raises gradually, do not store sensible heat in the past reaching phase transition temperature-fusing point, after phase-change material obtains enough heats, reach 82 ℃ of phase transition temperature-fusing points, undergo phase transition storage latent heat gradually, phase transformation finish and when reaching design temperature heat-accumulating process finish, disconnect the heating tube power supply, this process needs 330 minutes approximately, and (440kg) stored total amount of heat is 40000kcal in its phase-change material (13); Be delivered in the heat pipe by uniform heat transmission fin (15) and the snakelike heat exchange bronze pan tube of u word (17), by heat pipe institute's amount of stored heat isothermal is delivered to radiator coil tube, during heating blower fan is opened, by regulate multivane mouth and set indoor temperature with indoor be heated to temperature required, lattice variations----takes place and solidifies in phase change heat storage material (13) gradually, after discharging the latent heat of being deposited, its temperature begins to descend and discharge sensible heat, when reaching the temperature (40 ℃) of regulation, heat release finishes, and this moment, heating load can satisfy 100 square meter heating altogether.
2. heated 18 hours its operation principle continuously under holding for the situation of limit heating on the limit:
Hold for the limit heating on the limit: open blower fan, entrained heat is delivered to radiator coil tube (6) by uniform heat transmission fin and heat exchanger tube and realizes heating in the phase-change material (13), when the heat of taking away makes the temperature of phase-change material be lower than design temperature, under the control of time-temperature controller (19), start electric heating tube (16), give phase change heat storage material (13) heating accumulation of energy, the remainder heat is stored in the phase change heat storage material (13), the specific heat of this phase change heat storage material is 0.84cal/g.k, fusing point is 82 ℃, and heat of fusion is 73.8cal/g, and total amount of stored heat is 98.6cal/g in this process, sensible heat 16.8cal/g wherein, latent heat 73.8cal/g.When the temperature of phase change heat storage material (13) reaches 85 ℃, stop heating, when the temperature of phase change heat storage material is lower than 40 ℃, restarts electric heating tube (6) and carry out concurrent heating, realize the heating of 100 square meters with this.
For heat accumulating and heating device for 100 square meters, according to " design specification ", its 10 hours total heat duties are 40000kcal, can hold full in 5 hours in the heating tube work of low power consumption period, therefore this accumulation of heat water supply installation heating tube (16) general power should be 9000w, need phase-change material (13) 440kg, shared volume is 0.2m
3
This shows, the utility model conduct is the phase-transition heat-storage heating installation of thermal source with the electrical heating, can realize the accumulation of heat of high density phase change low ebb, peak load shifting, the balance electrical network also improves the effectiveness such as rate of load condensate of electrical network, because the electricity price of low-valley interval is lower, also reduce operating cost simultaneously, also reduced initial cost and administrative expenses simultaneously.
Fig. 2 is the operation principle letter intention of present conventional boilers heated electrically heating.
Among Fig. 2: 1. boilers heated electrically, 2. water circulating pump, 3. user's end (fan coil goods radiator), 4. WATER AS FLOW MEDIUM pipeline.
Fig. 3 is the operation principle letter intention of electric boiler storing up heat heating system commonly used at present.
Among Fig. 3: 1. boilers heated electrically, 2. heat-accumulator tank, 3. heat-accumulator tank heat release control valve, 4. electric boiler heat cycles pump, 5. heat-accumulator tank heat supply circulating pump, 6. accumulation of heat control valve, 7. heat exchanger, 8. heating system circulating pump, 9. user's end.
Workflow: the low power consumption period, boilers heated electrically (1), heat-accumulator tank (2), boiler heat cycles pump (4) were worked when carrying out accumulation of heat, and accumulation of heat control valve (6) is opened, and heat-accumulator tank heat release control valve (3) is closed, and heat is saved heat-accumulator tank (2).With level, peak period when carrying out heat supply, heat-accumulator tank (2), heat-accumulator tank heat supply circulating pump (5), heat exchanger (7), the work such as (8) of heating system circulating pump, heat-accumulator tank heat release control valve (3) is opened, and heat is delivered to user's end (9), finishes heating.
Behind comparison diagram 1, Fig. 2, Fig. 3 as can be seen, figure (1) illustrated embodiment is simpler than conventional hold over system shown in the figure (3), but function is identical, reliability and operational efficiency have been improved, simplified system, reduce equipment investment, reduced expenses such as Installation and Debugging, operation, reduced the Installation and Debugging cycle.Therefore, applying of this utility model will bring bigger economic benefit and social benefit, have promotional value and development prospect widely.
According to other similar techniques schemes that the described embodiment of Fig. 1 forms, also all belong to this and be suitable for novel protection domain.
According to the described embodiment of Fig. 1; if the arrangement of heat-pipe radiator, heat exchange coil, blower fan and profile and structure are replaced by other similar techniques schemes; also all belong to this and be suitable for novel protection domain; the above is specific embodiment of the utility model and the know-why used; if the equivalence of doing according to conception of the present utility model changes; when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet; all should be in scope of the present utility model, explanation hereby.
Claims (9)
1. high density phase change heat storage electric heating air-conditioning, it is characterized in that: paste the 10mm thick insulation layer inside the shell, adjustable air outlet is established in the front upper place, and fixedly blinds air inlet is established at the middle part; In the phase-transition heat-storage housing, the heat-conducting metal fin vertically is through on the heating muff concurrently, be 3 row, 4 row and divide layout, be distributed with the snakelike bronze pan tube of u word between row and between fin and housing, and walk connection with c type elbow, the two ends of coil pipe link to each other with the two ends of heat-pipe radiator respectively, establish volute of blower and axial flow centrifugal blower between heat storage and heat-pipe radiator; The two ends of heating muff are passed and are welded on the left and right sides metallic plate of phase-transition heat-storage housing, and the cavity of formation is full of phase change heat storage material, and its middle part is provided with temperature sensor; Electric heating tube is through in the heating muff, is electrically connected with the time-temperature controller by lead; The plate outer side weld metal bracing frame of phase-transition heat-storage housing.
2. according to the described phase-transition heat-storage electric heating of claim 1 air-conditioning, it is characterized in that: paste the 10mm thick insulation layer inside the shell, adjustable air outlet is established in the front upper place, and fixedly blinds air inlet is established at the middle part.
3. according to the described phase-transition heat-storage electric heating of claim 1 air-conditioning, it is characterized in that in the phase-transition heat-storage housing, the heat-conducting metal fin vertically is through on the heating muff concurrently, be 3 row, 4 row and divide layout, be distributed with the snakelike bronze pan tube of u word between row and between fin and housing, and walk connection with c type elbow.
4. according to the described phase-transition heat-storage electric heating of claim 1 air-conditioning, it is characterized in that: the two ends of coil pipe link to each other with the two ends of heat-pipe radiator respectively, establish volute of blower and axial flow centrifugal blower between heat storage and heat-pipe radiator.
5. according to the described phase-transition heat-storage electric heating of claim 1 air-conditioning, it is characterized in that: be installed with the heat transmission fin that several pieces spacings are 5-10mm tightly perpendicular to heating muff, to increase heat transfer area and exchange capability of heat.
6, according to the described phase-transition heat-storage electric heating of claim 1 air-conditioning, it is characterized in that: be provided with temperature sensor in the phase change heat storage material in the accumulation of heat chamber.
7. according to the described phase-transition heat-storage electric heating of claim 1 air-conditioning, it is characterized in that: equidistantly be furnished with heating muff in the accumulation of heat chamber in parallel to each other, electric heating tube penetrates in the heating muff.
8. according to the described phase-transition heat-storage electric heating of claim 1 air-conditioning, it is characterized in that: adopting heat pipes for heat transfer is adopted in the heat transfer between heat storage and the radiator.
9. according to the described phase-transition heat-storage electric heating of claim 1 air-conditioning, it is characterized in that: the operation of blower fan is controlled by indoor design temperature and time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02285241U CN2596305Y (en) | 2002-11-12 | 2002-11-12 | Phase changing heat storage electric heating heat supply air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02285241U CN2596305Y (en) | 2002-11-12 | 2002-11-12 | Phase changing heat storage electric heating heat supply air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596305Y true CN2596305Y (en) | 2003-12-31 |
Family
ID=33746316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02285241U Expired - Fee Related CN2596305Y (en) | 2002-11-12 | 2002-11-12 | Phase changing heat storage electric heating heat supply air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596305Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607308A (en) * | 2011-03-02 | 2012-07-25 | Kdpcm株式会社 | Multi cooling type phase-change material thermal storage system |
| CN102801111A (en) * | 2011-05-27 | 2012-11-28 | Abb公司 | Converter arrangement and method in connection with converter arrangement |
| CN101970874B (en) * | 2008-03-31 | 2013-08-07 | 伊森科科技公司 | A system and method for regenerating heat energy |
| CN104654868A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Solid grain block heat accumulating type multi-generation unit and trolley |
| CN104654867A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Heat accumulating type multi-generation unit and movable unit |
| CN104792207A (en) * | 2015-04-17 | 2015-07-22 | 天津商业大学 | Phase-change energy storage box |
| CN105115021A (en) * | 2015-09-23 | 2015-12-02 | 杨斯涵 | Heater of cooling tube row coupled with phase-change heat storage box |
| CN109786889A (en) * | 2018-12-29 | 2019-05-21 | 北京华厚能源科技有限公司 | A kind of passive phase-change type battery thermal management system of master |
-
2002
- 2002-11-12 CN CN02285241U patent/CN2596305Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101970874B (en) * | 2008-03-31 | 2013-08-07 | 伊森科科技公司 | A system and method for regenerating heat energy |
| CN102607308A (en) * | 2011-03-02 | 2012-07-25 | Kdpcm株式会社 | Multi cooling type phase-change material thermal storage system |
| CN102607308B (en) * | 2011-03-02 | 2014-10-29 | Kdpcm株式会社 | Multi cooling type phase-change material thermal storage system |
| CN102801111A (en) * | 2011-05-27 | 2012-11-28 | Abb公司 | Converter arrangement and method in connection with converter arrangement |
| CN102801111B (en) * | 2011-05-27 | 2015-10-14 | Abb公司 | Converter arrangement and the method relevant with converter arrangement |
| CN104654868A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Solid grain block heat accumulating type multi-generation unit and trolley |
| CN104654867A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Heat accumulating type multi-generation unit and movable unit |
| CN104654868B (en) * | 2013-11-17 | 2018-06-19 | 成都奥能普科技有限公司 | Solid grain block heat accumulating type Poly-generation unit and locomotive |
| CN104792207A (en) * | 2015-04-17 | 2015-07-22 | 天津商业大学 | Phase-change energy storage box |
| CN105115021A (en) * | 2015-09-23 | 2015-12-02 | 杨斯涵 | Heater of cooling tube row coupled with phase-change heat storage box |
| CN105115021B (en) * | 2015-09-23 | 2018-08-28 | 北京市润华给水设备厂 | A kind of heater of phase change heat storage tank coupling heat-dissipating pipe row |
| CN109786889A (en) * | 2018-12-29 | 2019-05-21 | 北京华厚能源科技有限公司 | A kind of passive phase-change type battery thermal management system of master |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203549989U (en) | High-intensity phase-change heat storage electrothermal heating air conditioner | |
| CN1485593A (en) | Incorporated high density phase transformation energy accumulation power consumption heat supply process and apparatus | |
| WO2017016224A1 (en) | Off-peak electricity phase change heat storage central heating/water heating system | |
| CN104930584B (en) | Parallel superconductive solar heat-pump hot-water water bathing heating system | |
| CN1504716A (en) | Metal and molten salt energy storage type heat supply apparatus | |
| CN107062173A (en) | Trough-electricity heat storage boiler and its application method | |
| CN2596305Y (en) | Phase changing heat storage electric heating heat supply air conditioner | |
| JP7251840B2 (en) | Cold storage heat storage type room air conditioner | |
| CN104456699B (en) | A kind of air type solar energy hot water VMC towards passive room | |
| CN109579295A (en) | The heating installation that a kind of liquid, vapour vacuum cycle can be heated quickly | |
| CN204704895U (en) | A kind of recuperation of heat fume exhauster system possessing kitchen range top function of recovering waste heat | |
| CN100572973C (en) | The hot water supply of a kind of solar energy, the accumulation of heat of peak valley electricity and refrigeration set composite | |
| CN202126000U (en) | Water heating-electric heating dual-purpose phase change copper-aluminum combined wing type radiator | |
| CN203757845U (en) | Parallel type superconductive solar heat pump hot water bathing and heating system | |
| CN203964366U (en) | A kind of phase-change heat-storage Teat pump boiler | |
| CN202952646U (en) | Solar heating drying system of color printer | |
| CN206617917U (en) | A kind of trough-electricity heat storage boiler | |
| CN2548045Y (en) | Household type phase-transformation heat-storage electric heating apparatus | |
| CN104807055A (en) | Heat-recovery kitchen ventilator system having cooking bench waste heat recovery function | |
| CN202131681U (en) | Multifunctional thermal insulation system for integrating heat pipes and outer wall decorative finish | |
| CN1566253A (en) | High performance phase-change heat-accumulation material and its applied technique | |
| CN208635260U (en) | Fresh air preheating device | |
| CN107101385A (en) | A kind of heat storage electric boiler and solar water heater combined apparatus and heat supply method | |
| CN202511455U (en) | Thermal storage heat pump water heater | |
| CN208886989U (en) | Solar energy seasonality phase-changing energy-storing room temperature automatic regulating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |