CN203549989U - High-intensity phase-change heat storage electrothermal heating air conditioner - Google Patents

High-intensity phase-change heat storage electrothermal heating air conditioner Download PDF

Info

Publication number
CN203549989U
CN203549989U CN201320127520.XU CN201320127520U CN203549989U CN 203549989 U CN203549989 U CN 203549989U CN 201320127520 U CN201320127520 U CN 201320127520U CN 203549989 U CN203549989 U CN 203549989U
Authority
CN
China
Prior art keywords
heat
heating
phase
storage
electric heating
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
Application number
CN201320127520.XU
Other languages
Chinese (zh)
Inventor
王智慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHONGYINENG (BEIJING) TECHNOLOGY Co Ltd
Original Assignee
ZHONGYINENG (BEIJING) TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHONGYINENG (BEIJING) TECHNOLOGY Co Ltd filed Critical ZHONGYINENG (BEIJING) TECHNOLOGY Co Ltd
Priority to CN201320127520.XU priority Critical patent/CN203549989U/en
Application granted granted Critical
Publication of CN203549989U publication Critical patent/CN203549989U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Central Heating Systems (AREA)

Abstract

The utility model relates to a cabinet type electrothermal heating and air supplying air conditioner which integrates electric heating, heat storage, forced heat exchange, heat pipe heat transfer and heat insulation and has an off-peak electric heat storage function. The air conditioner is in the shape of a cuboid, and is formed by a housing, a heat insulation layer, a phase-change heat storage housing, phase-change heat storage materials, heat exchange coil pipes, heating sleeve pipes, electric heating pipes, heat conduction fins, heat pipe radiators, temperature sensors, a controller, bottom supports, an axial-flow blower fan, a blower fan spiral case, an air return port, an air outlet, an air adjusting blinds and the like; and off-peak electric heat storage and indoor heating can be achieved via control programs. The air conditioner is advantaged by easy installation, less occupied space and low operating cost, is applied for heating places like a living room, a classroom, a meeting room, a workshop, a plant, a storehouse and the like, has functions of peak moving, peak valley filling, electrical charge adjusting, electricity saving, and cost reducing, and provides great economical and social benefit.

Description

A kind of high density phase change heat storage electric heating air-conditioning
Technical field:
A kind of high density phase change heat storage electric heating air-conditioning, 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 in one with trough-electricity heat accumulation function, especially relates to a kind of electrothermal heating unit that can utilize trough-electricity to carry out high density phase change heat storage, heat pipe phase-change heat transfer, heat exchange.
Background technology:
At present, China's power industry developed rapidly in recent years, but power supply shortage situation do not taken on a new look at all, was mainly manifested in: load rate of grid is low, and system peak-valley difference is apart from large, urban life, business electricity consumption rapid growth, and commercial power proportion reduces relatively.This fact has promoted the development of comprehensive utilization of energy technology, and heat storage technology is one of its most critical technology.Heat storage technology refers to: in the low power consumption period, low price electric energy is converted to the energy storage of hot form, with level, peak period, discharging the technology being reused, to reach objects such as adjusting lotus is energy-conservation, peak load shifting, reduction electric power operation cost, the energy operating cost that reduces user, the reasonable high-quality of use efficiently clear energy sources.
The heat storage technology generally being adopted at present mainly contains: water at atmospheric pressure accumulation of heat and high-temperature water accumulation of heat, solid phase high-temperature heat accumulation.The latent heats of phase change such as the latent heat of vaporization (53gcal/g) during due to the latent heat of melting (8Ocal/g) of water 0 ℃ time and 100 ℃ are all larger, but volume density (1g/m1) and specific heat (1cal/g ℃) are less, so the latent heat of water, sensible heat thermal storage density are little, it is all to utilize sensible heat characteristic that water is cooked 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, steam accumulation of heat is the latent heat of vaporization of utilizing water, although heat of vaporization is large, but vapour density is little, pressure is high, therefore thermal storage density is little relatively; Solid phase high-temperature heat accumulation is, with electric heating tube, formed solid material is heated to 400-700 ℃, then by high temperature heat exchange, the thermal release storing is gone out, and its heat-exchanger rig is complicated, pressure is high, poor safety performance, and insulation difficulty is large, and heat loss is large.
Utility model content:
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 transformation flower bud hot material; And relate to the crawl design of coil pipe of a kind of red copper of processing 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 producing while simultaneously also relating to a kind of heating tube can energising is evenly 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 heating cabinet air-conditioner being designed and manufactured into thus not only can independently heat, and can also be flapped toward and carry out wind direction adjusting by adjusting the fan blade in air port, by controlling the unlatching of blower fan and closing down control indoor temperature; Also there is trough-electricity heat accumulation function, reduced widely initial cost and operating cost, improved security and comfortableness.Problem and the shortcomings such as the intrinsic volume of water at atmospheric pressure accumulation of heat and the conventional regenerative apparatus such as high-temperature water accumulation of heat, solid phase high-temperature heat accumulation is large, pressure is high, initial cost is high, cost of use is high, poor safety performance have fundamentally been solved.
A high density phase change heat storage electric heating air-conditioning, is characterized in that, pastes inside the shell 10mm thick insulation layer, and adjustable air outlet is established in front upper place, and fixedly blinds air inlet is established at middle part; In phase-transition heat-storage housing, heat-conducting metal fin is vertically through on heating muff concurrently, be 3 row 4 row minute layouts, between row and between fin and housing, be distributed with the snakelike bronze pan tube of u word, and walk connection with c type elbow, the two ends of coil pipe are connected with the two ends of heat-pipe radiator respectively, establish volute of blower and axial-flow centrifugal fan 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, the cavity forming is full of phase change heat storage material, its middle part set temperature sensor: electric heating tube is through in heating muff, is electrically connected to time-temperature controller by wire; The plate outer side weld metal bracing frame of phase-transition heat-storage housing.
The beneficial effects of the utility model are, can by electric heating tube, heating muff and, the heat transfer of heat transmission fin, heat exchange heat pipe completes the accumulation of heat of phase-change material, two kinds of functions of heat supply, compact conformation, safety and stability is reliable.
Accompanying drawing explanation:
Fig. 1 Fig. 4 is vertical section of the present utility model structural map.
In Fig. 1: 1. shell, 2. heat-insulation layer, 4. return air inlet, 6. blower fan heat-pipe radiator, 7. heat transfer heat pipe, 8. volute of blower, 9. blower fan, 11. phase-transition heat-storage housings, 12. accumulation of heat chamber reinforcements, 13. phase change heat storage materials, 14. heating muffs, 16. electric heating tubes, 17. accumulation of energy heat exchange coils, 18. phase transition temperature sensors, 19. temperature-time controllers.
Fig. 2 is the operation principle letter intention of current conventional boilers heated electrically heating.
In 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 commonly using at present electric boiler storing up heat heating system.
In 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 is for hot recycle pump, 6. accumulation of heat control valve, 7, heat exchanger, 8. heating system circulating pump, 9. user's end.
In Fig. 4: 3. air outlet, 5. outlet louver of air, 10. temperature sensor, 15. heat-conducting metal fins.
The specific embodiment:
The technical scheme in the invention for solving the above technical problem is: in shell (1) inner side, paste 10mm thick insulation layer (2), adjustable air outlet (3) is established in front upper place, and fixedly blinds air inlet (4) is established at middle part; In phase-transition heat-storage housing (11), heat-conducting metal fin (15) is vertically through on heating muff (14) concurrently, be 3 row 4 row minute layouts, between row and between fin (15) and housing (11), be distributed with the snakelike bronze pan tube of u word (17), and use.Type elbow is walked connection, and the two ends of coil pipe (17) are connected with the two ends of heat-pipe radiator (6) respectively, establishes volute of blower (8) and axial-flow centrifugal fan (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), its middle part set temperature sensor (18); Electric heating tube (16) is through in heating muff (14), by wire, is electrically connected to time-temperature controller (19).
Operation principle of the present utility model and workflow are:
Heat-accumulating process: in the low power consumption period, time-temperature controller (19) is controlled electric heating tube (16) by heating muff (14) heating fin (15), by uniform fin (15) diffusion, be delivered in phase-change material (13) again, the temperature of phase-change material (13) raises gradually, before reaching phase transition temperature-fusing point, do not store sensible heat, phase-change material obtains after enough heats, lattice variations---latent heat of phase change occurs gradually, and when phase transformation finishes and reaches design temperature, heat-accumulating process completes.Heat release heating process: electric heating tube (16) stops heating, heat stored in its phase-change material (13) is delivered in 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 heat storage are consistent, by blower fan (9) forced ventilation, room air is heated to temperature required, there is gradually lattice variations in phase change heat storage material (13)---solidify, discharge after the latent heat of depositing, its temperature starts to decline and discharge sensible heat, while reaching the temperature (45 ℃) of regulation, heat release process finishes.
The beneficial effects of the utility model are, can by electric heating tube, heating muff and, the heat transfer of heat transmission fin, heat exchange heat pipe completes the accumulation of heat of phase-change material, two kinds of functions of heat supply, compact conformation, safety and stability is reliable.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1, 100 square meter phase-transition heat-storage electric heating heating air-conditioners shown in Fig. 4, can realize: 1. do not needing heating in the situation that continuous heating 10h, its operation principle: in the low power consumption period, time-temperature controller (19) is controlled the electric heating tube (16) that general power is 9000W and is passed through heating muff (14) and fin (15) heating phase-change material (13), the temperature of phase-change material (13) raises gradually, before reaching phase transition temperature-fusing point, do not store sensible heat, phase-change material obtains after enough heats, reach 82 ℃ of phase transition temperature fusing points, undergo phase transition gradually storage latent heat, when phase transformation finishes and reaches design temperature, heat-accumulating process completes, disconnect heating tube power supply, this process approximately needs 330 minutes, in its phase-change material (13), (440kg) stored total amount of heat is 40000kcal, by uniform heat transmission fin (15) and the snakelike heat exchange bronze pan tube of u word (17), be delivered in heat pipe, by heat pipe, institute's amount of stored heat isothermal is delivered to radiator coil tube, during heating, blower fan is opened, by adjusting louver mouth and setting indoor temperature, heating indoor is extremely temperature required, there is gradually lattice variations in phase change heat storage material (13)---solidify, discharge after the latent heat of depositing, its temperature starts to decline and discharge sensible heat, while reaching the temperature (40 ℃) of regulation, heat release is complete, and now heating load can meet 100 square meter heating altogether.
2. the in the situation that of heating on Xu Gong limit, limit, continuous heating is 18 hours, its operation principle: Xu Gong limit, limit heating: open blower fan, in phase-change material (13), entrained heat is delivered to radiator coil tube (6) by uniform heat transmission fin and heat exchanger tube and realizes heating, the temperature that makes phase-change material when the heat of taking away is during 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, remainder heat is stored in phase change heat storage material (13), the specific heat of this phase change heat storage material is 0.84cal/g.k, fusing point is 829 ℃, heat of fusion is 73.8cal/g, in this process, total amount of stored heat is 98.6cal/g, sensible heat 16.8cal/9 wherein, latent heat 73.8cal/9.When the temperature of phase change heat storage material (13) reaches 850 ℃, stop heating, when the temperature of phase change heat storage material is during lower than 400 ℃, restart electric heating tube (6) and carry out concurrent heating, with this, realize 100 square meters heating.
For the heat accumulating and heating device for 100 square meters, according to < < design specification > >, its 10 hours total heat duties are 40000kcal, in the heating tube work of low power consumption period, within 5 hours, can hold full, 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 2.
As can be seen here, the utility model is as take the phase-transition heat-storage heating installation that electrical heating is thermal source, can realize the accumulation of heat of high density phase change low ebb, peak load shifting, 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.
Workflow: the low power consumption period is while carrying out accumulation of heat, boilers heated electrically (1), heat-accumulator tank (2), boiler heat cycles pump (4) work, accumulation of heat control valve (6) is opened, and heat-accumulator tank heat release control valve (3) is closed, and heat is saved to heat-accumulator tank (2).With level, peak period while carrying out heat supply, heat-accumulator tank (2), heat-accumulator tank are for work such as hot recycle pump (5), heat exchanger (7), heating system circulating pumps (8), heat-accumulator tank heat release control valve (3) is opened, heat is delivered to user's end (9), complete heating.After comparison diagram 1, Fig. 2, Fig. 3, Fig. 4, can find out, figure (1) illustrated embodiment is simpler than conventional hold over system shown in figure (3), but function is identical, reliability and operational efficiency have been improved, simplified system, reduce equipment investment, reduced the expenses such as installation and debugging, operation, reduced the installation and debugging cycle.Therefore, applying of this utility model will bring larger economic benefit and social benefit, has promotional value and development prospect widely.Other similar technical schemes that form according to the embodiment described in Fig. 1, also all belong to this applicable novel protection domain.
According to the embodiment described in Fig. 1, Fig. 4; if layout ten thousand formulas of heat-pipe radiator, heat exchange coil, blower fan and profile and structure are replaced by other similar technical schemes; also all belong to this applicable 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 its function producing does not exceed spiritual that description and accompanying drawing contain yet, all should be in scope of the present utility model.

Claims (9)

1. a high density phase change heat storage electric heating air-conditioning, is characterized in that, pastes inside the shell 10mm thick insulation layer, and adjustable air outlet is established in front upper place, and fixedly blinds air inlet is established at middle part; In phase-transition heat-storage housing, heat-conducting metal fin is vertically through on heating muff concurrently, be 3 row 4 row minute layouts, between row and between fin and housing, be distributed with the snakelike bronze pan tube of u word, and walk connection with c type elbow, the two ends of coil pipe are connected with the two ends of heat-pipe radiator respectively, establish volute of blower and axial-flow centrifugal fan 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, the cavity forming is full of phase change heat storage material, its middle part set temperature sensor: electric heating tube is through in heating muff, is electrically connected to time-temperature controller by wire; The plate outer side weld metal bracing frame of phase-transition heat-storage housing.
2. phase-transition heat-storage electric heating heating air-conditioner according to claim 1, is characterized in that: paste inside the shell 10mm thick insulation layer, adjustable air outlet is established in front upper place, and fixedly blinds air inlet is established at middle part.
3. phase-transition heat-storage electric heating heating air-conditioner according to claim 1, it is characterized in that, in phase-transition heat-storage housing, heat-conducting metal fin is vertically through on heating muff concurrently, be 3 row 4 row minute layouts, between row and fin and housing ask and be distributed with the snakelike bronze pan tube of u word, and use.Type elbow is walked connection.
4. according to phase-transition heat-storage electric heating heating air-conditioner described in claim work, it is characterized in that: the two ends of coil pipe are connected with the two ends of heat-pipe radiator respectively, between heat storage and heat-pipe radiator, establish volute of blower and axial-flow centrifugal fan.
5. phase-transition heat-storage electric heating heating air-conditioner according to claim 1, is characterized in that: perpendicular to heating muff, being installed with tightly several pieces spacing is 5---the heat transmission fin of 10mm, and to increase heat transfer area and exchange capability of heat.
6. phase-transition heat-storage electric heating heating air-conditioner according to claim 1, is characterized in that: in the phase change heat storage material in accumulation of heat chamber, be provided with temperature sensor.
7. phase-transition heat-storage electric heating heating air-conditioner according to claim 1, is characterized in that: in accumulation of heat chamber, be equidistantly furnished with in parallel to each other heating muff, electric heating tube penetrates in heating muff.
8. phase-transition heat-storage electric heating heating air-conditioner according to claim 1, is characterized in that: the heat transfer between heat storage and radiator adopts adopting heat pipes for heat transfer.
9. phase-transition heat-storage electric heating heating air-conditioner according to claim 1, is characterized in that: the operation of blower fan is controlled by indoor design temperature and time.
CN201320127520.XU 2013-03-20 2013-03-20 High-intensity phase-change heat storage electrothermal heating air conditioner Expired - Fee Related CN203549989U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320127520.XU CN203549989U (en) 2013-03-20 2013-03-20 High-intensity phase-change heat storage electrothermal heating air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320127520.XU CN203549989U (en) 2013-03-20 2013-03-20 High-intensity phase-change heat storage electrothermal heating air conditioner

Publications (1)

Publication Number Publication Date
CN203549989U true CN203549989U (en) 2014-04-16

Family

ID=50468099

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320127520.XU Expired - Fee Related CN203549989U (en) 2013-03-20 2013-03-20 High-intensity phase-change heat storage electrothermal heating air conditioner

Country Status (1)

Country Link
CN (1) CN203549989U (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105115021A (en) * 2015-09-23 2015-12-02 杨斯涵 Heater of cooling tube row coupled with phase-change heat storage box
CN105783087A (en) * 2014-12-26 2016-07-20 江苏同盛环保技术有限公司 Novel energy-saving energy storage type warmer
CN106143048A (en) * 2016-06-24 2016-11-23 西安交通大学 A kind of electric bus air-conditioning system of phase-change accumulation energy
CN108826432A (en) * 2018-08-20 2018-11-16 杭州华源前线能源设备有限公司 A kind of heat accumulating type hot pipe heater
CN109005666A (en) * 2016-02-02 2018-12-14 脱其泰有限责任公司 Heat-transfer arrangement, temperature stable container comprising heat-transfer arrangement and associated method
CN109489110A (en) * 2018-12-29 2019-03-19 贺迈新能源科技(上海)有限公司 A kind of electric heating appliance with phase-change heat accumulation
CN110319517A (en) * 2019-07-22 2019-10-11 北京瑞特爱机电设备工程有限公司 A kind of cold and hot double storage air conditioners of gravity heat-pipe type
CN111050438A (en) * 2019-12-31 2020-04-21 广东金米兄弟科技有限公司 High-efficiency energy-saving heater
CN113251464A (en) * 2021-05-28 2021-08-13 全球能源互联网欧洲研究院 Inorganic salt phase transformation heat accumulation and supply device
CN114967292A (en) * 2022-06-10 2022-08-30 重庆睿视兴科技有限公司 Refrigeration science camera with multiple heat radiation structure

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105783087A (en) * 2014-12-26 2016-07-20 江苏同盛环保技术有限公司 Novel energy-saving energy storage type warmer
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
CN105115021A (en) * 2015-09-23 2015-12-02 杨斯涵 Heater of cooling tube row coupled with phase-change heat storage box
CN109005666A (en) * 2016-02-02 2018-12-14 脱其泰有限责任公司 Heat-transfer arrangement, temperature stable container comprising heat-transfer arrangement and associated method
CN106143048B (en) * 2016-06-24 2018-09-04 西安交通大学 A kind of electric bus air-conditioning system of phase-change accumulation energy
CN106143048A (en) * 2016-06-24 2016-11-23 西安交通大学 A kind of electric bus air-conditioning system of phase-change accumulation energy
CN108826432A (en) * 2018-08-20 2018-11-16 杭州华源前线能源设备有限公司 A kind of heat accumulating type hot pipe heater
CN109489110A (en) * 2018-12-29 2019-03-19 贺迈新能源科技(上海)有限公司 A kind of electric heating appliance with phase-change heat accumulation
CN109489110B (en) * 2018-12-29 2023-09-22 贺迈新能源科技(上海)有限公司 Phase-change heat-storage electric warmer
CN110319517A (en) * 2019-07-22 2019-10-11 北京瑞特爱机电设备工程有限公司 A kind of cold and hot double storage air conditioners of gravity heat-pipe type
CN111050438A (en) * 2019-12-31 2020-04-21 广东金米兄弟科技有限公司 High-efficiency energy-saving heater
CN113251464A (en) * 2021-05-28 2021-08-13 全球能源互联网欧洲研究院 Inorganic salt phase transformation heat accumulation and supply device
CN114967292A (en) * 2022-06-10 2022-08-30 重庆睿视兴科技有限公司 Refrigeration science camera with multiple heat radiation structure
CN114967292B (en) * 2022-06-10 2024-03-15 重庆睿视兴科技有限公司 Refrigeration science camera with multiple heat radiation structure

Similar Documents

Publication Publication Date Title
CN203549989U (en) High-intensity phase-change heat storage electrothermal heating air conditioner
CN204901906U (en) Millet ferroelectric phase becomes heat -retaining formula and adopts warm water system
CN201488281U (en) Energy storage-type heat pump water heater
CN202470194U (en) Centralized heat storage electric heating system
CN1485593A (en) Incorporated high density phase transformation energy accumulation power consumption heat supply process and apparatus
CN107131550A (en) A kind of heat for improving heat transference efficiency warms up the heating plant of water tank
CN104456699B (en) A kind of air type solar energy hot water VMC towards passive room
CN2596305Y (en) Phase changing heat storage electric heating heat supply air conditioner
CN203757845U (en) Parallel type superconductive solar heat pump hot water bathing and heating system
CN203517963U (en) Household phase transition heat storage electric heating device
CN203893442U (en) Air type solar water heater manage system
CN203964366U (en) A kind of phase-change heat-storage Teat pump boiler
CN202885245U (en) High-efficiency energy-saving heat pump water heater with a plurality of water tanks
CN201828020U (en) Solar-air double-heat source type heat pump water heater
CN105716280A (en) Dual-purpose box capable of storing and converting energy during off-peak electricity consumption period
CN2548045Y (en) Household type phase-transformation heat-storage electric heating apparatus
CN202511455U (en) Thermal storage heat pump water heater
CN204853650U (en) Air formula solar water -heating new trend system towards passive room
CN203893443U (en) Air type solar hot water supply system
CN103528209B (en) One and building integrated solar device
CN202709456U (en) Crude oil heating system of air source heat pump
CN205843457U (en) A kind of phase-changing energy-storing structure of hot and cold water storage tank
CN105937814A (en) Building passive cooling and solar hot water comprehensive utilization device
CN206001685U (en) Small-sized paddy electricity solid heat storage electric furnace
CN202927806U (en) Solar energy rapid heating device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
DD01 Delivery of document by public notice

Addressee: ZHONGYINENG (BEIJING) TECHNOLOGY CO., LTD.

Document name: Notification of Passing Examination on Formalities

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140416

Termination date: 20210320