CN111895649A - Heat accumulation type electric water heater - Google Patents
Heat accumulation type electric water heater Download PDFInfo
- Publication number
- CN111895649A CN111895649A CN202010709740.8A CN202010709740A CN111895649A CN 111895649 A CN111895649 A CN 111895649A CN 202010709740 A CN202010709740 A CN 202010709740A CN 111895649 A CN111895649 A CN 111895649A
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- heat
- heat storage
- air
- fan
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000009825 accumulation Methods 0.000 title claims abstract description 5
- 238000005338 heat storage Methods 0.000 claims abstract description 68
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000005485 electric heating Methods 0.000 claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 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
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- GALOTNBSUVEISR-UHFFFAOYSA-N molybdenum;silicon Chemical compound [Mo]#[Si] GALOTNBSUVEISR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 23
- 238000005406 washing Methods 0.000 description 3
- 238000003287 bathing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000011094 fiberboard Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/0208—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply
- F24H7/0233—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply the transfer fluid being water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A heat storage type electric water heating device comprises a heat storage part, a fan, an air-water heat exchanger and an operation panel. The upper part of one side of the heat storage component is connected with the fan, the lower part of the other side of the heat storage component is connected with the heat exchanger, and the operation panel is arranged on the upper part of the heat storage component. The heat storage member includes a heat storage member case, and a heat storage element and an electric heating rod which are provided in the case; the heat storage element is of a honeycomb porous structure, and the heat storage component shell comprises a shell, an outer heat insulation layer, an inner heat insulation layer and an inner lining plate; an air inlet valve and an air inlet heat insulation baffle are arranged on the heat accumulator shell close to the air outlet position of the fan, and an air outlet heat insulation baffle is arranged on the heat accumulation part shell close to the air-water heat exchanger. The device is added with the heat storage component, so that the hot water can be used immediately without waiting for the heating time. At the same time, the valley electricity can be used for heat storage, and the valley electricity is low in price, so that more electricity charges can be saved, and compared with the conventional electric water heater, the electric water heater can save the electricity charges by not less than 50% and has the heat efficiency as high as more than 85%.
Description
Technical Field
The invention relates to an electric heating type water heating device, in particular to a heat storage type electric heating device, and belongs to the technical field of hot water supply of electric heating products.
Background
The traditional household water heater adopts a mode of directly electrically heating municipal cold water to supply hot water, the components of the traditional household water heater mainly comprise a heat insulation shell, a heating rod, a water inlet pipe and a water outlet pipe, and the bath water temperature of the water heater is about 44 ℃. Taking a typical household water heater with a volume of 60L and a rated electric heating power of 2.0kW as an example, when water is heated from 15 ℃ to 44 ℃, about 7.3MJ of electric energy needs to be provided, and under the condition of a rated electric power of 2.0kW, cold water needs to be continuously heated for about 1 hour to be heated to 44 ℃. Therefore, the hot water bathing can be realized after 1 hour. In addition, the household vegetable washing, hand washing and clothes washing also need quick and convenient hot water supply; therefore, in order to improve the quality of life in the aspect of family bathing, the problem of instantaneity of domestic hot water supply needs to be solved, so that the hot water can be used at any time. The newly-appeared instant electric water heater on the market adopts super-large current to carry out super-large power instant heating, and the electric heating power of the product is 10-20 kw. The instantaneous heating power of the product is high, the temperature rise of the heater is high in the starting stage, the problems of structural deformation and leakage are easy to occur, meanwhile, the temperature of a heating device is high, the problems of scaling, corrosion, thermal resistance increase and the like frequently occur on the surface of a water pipe, the electrical safety problems of accelerated aging of a circuit wire, overheating damage of the wire and the like exist in the super-high power overload operation, and safety accidents of electric leakage, electric shock, fire and the like are easy to cause. In addition, the power consumption of a common water heater accounts for 30-40% of the total power consumption of the whole family, and becomes a main factor influencing the household electricity charge input, so that the peak-shifting electricity utilization is carried out by adopting valley electricity according to the advocated energy conservation and emission reduction and policy guidance in China, the reliability of a power grid can be improved, the energy waste of electricity abandonment can be effectively reduced, and the purpose of energy conservation is realized.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention aims to provide a heat storage type electric water heating device, which solves the problems of long-time waiting of hot water supply, electricity safety, high cost and the like, and achieves the purposes of instant hot water use, safe hot water use and utilization of valley electricity electric energy.
The technical scheme of the invention is as follows:
a heat accumulation type electric water heater is characterized in that: the device comprises a heat storage component, a fan, an air-water heat exchanger and an operation panel; the heat storage member includes a heat storage member case, and a heat storage element and an electric heating rod which are provided in the case; the fan is arranged at the upper part of one side of the heat storage component shell, and an air outlet of the fan is communicated with the heat storage element; the air-water heat exchanger is arranged at the lower part of the other side of the heat storage component shell, and an air side inlet of the air-water heat exchanger is communicated with the heat storage element.
Preferably, the heat storage component shell is sequentially provided with an inner lining plate, an inner heat insulation layer, an outer heat insulation layer and an outer shell from inside to outside; an air inlet valve for adjusting air quantity and an air inlet heat insulation baffle for preventing heat loss are arranged on the heat storage component shell close to the air outlet position of the fan; an air-out heat insulation baffle for preventing heat loss is arranged on the heat storage component shell close to the air-water heat exchanger.
Preferably, the heat storage element is a honeycomb porous structure of alumina ceramic, mullite ceramic, ceramic fiber board or glass fiber.
Preferably, the air-water heat exchanger comprises a heat exchanger shell and a double-pipe serpentine heat exchange coil, wherein the heat exchange coil comprises an outer pipe, an inner pipe and a flow choking part made of red copper and arranged between the outer pipe and the inner pipe.
Preferably, the electric heating rod is a U-shaped electric heating rod made of silicon-molybdenum materials. The fan is a variable frequency fan.
Compared with the prior art, the invention has the following advantages and beneficial effects: the hot water is used immediately. No matter the vegetables or clothes are washed, absorbed, bathed, washed and the like, the hot water can be used immediately, and the condition of waiting for heating does not exist. Secondly, the heat storage density is high, the device can realize heat storage more than or equal to 100kw-h, and the conventional 60L electric water heater can only realize heat less than or equal to 3 kw-h. And safe low-electric power heat storage. The instant heating products appearing on the market are easy to cause the service life of the original household electric wire and the electric wire to cause electric accidents such as fire disasters caused by overheating, and the reason is that the instant power is overlarge. The product can carry out long-term heat storage in the valley period by the power not higher than 2.0kw, and the power is well matched with the electric wire generally selected by a family, so that the problem of no electric safety is solved. The device can save the electric charge by not less than 50%. The heat efficiency of the device is more than or equal to 85 percent, and the valley electricity is adopted for heat storage, so that the valley electricity is low in price, and more electricity charges can be saved. The product can be flexibly installed. The traditional water heater is generally arranged at the position of a toilet ceiling, and the product can be flexibly arranged at any position of any room and can be positioned by combining indoor decoration and overall layout.
Description of the drawings:
fig. 1 is a schematic cross-sectional view of a heat storage type electric water heater according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of the tube-in-tube serpentine heat exchange coil of the present invention.
In the figure: 1-a thermal storage member; 2-a fan; 3-an air-water heat exchanger; 4-an operation panel; 5-a thermal storage member housing; 6-a heat storage element; 7-an electric heating rod; 8-outer shell, 9-outer insulating layer, 10-inner insulating layer, 11-inner lining plate, 12-air inlet valve, 13-air inlet heat insulation baffle, 14-heat exchanger outer shell, 15-tubular snake-shaped heat exchange coil and 15 a-outer tube; 15 b-an inner tube; 15 c-flow resisting piece and 16-air outlet heat insulation baffle.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 and 2, the heat storage type electric water heater provided by the invention mainly comprises a heat storage part 1, a fan 2, an air-water heat exchanger 3 and an operation panel 4; the thermal storage member 1 includes a thermal storage member case 5, and a thermal storage element 6 and an electric heating rod 7 provided in the case; the fan 2 is arranged at the upper part of one side of the heat storage component shell 5, and an air outlet of the fan is communicated with the heat storage element 6; an air-water heat exchanger is provided at the lower portion of the other side of the heat storage member case 5, and an air-side inlet of the air-water heat exchanger is communicated with the heat storage element 6.
The heat storage component shell 5 is sequentially provided with an inner lining plate 11, an inner heat insulation layer 10, an outer heat insulation layer 9 and a shell 8 from inside to outside; an air inlet valve 12 for adjusting air quantity and an air inlet heat insulation baffle 13 for preventing heat loss are arranged on the heat storage component shell 5 close to the air outlet position of the fan 2; an air-out heat insulating baffle 16 for preventing heat loss is disposed at the lower portion of the heat storage member case 5 side near the air-water heat exchanger 3. The heat storage element 6 is a honeycomb-shaped porous structure formed by alumina ceramics, mullite ceramics, ceramic fiber boards or glass fibers. The air-water heat exchanger 3 is composed of a heat exchanger shell 14 and a tubular serpentine heat exchange coil 15, and the serpentine heat exchange coil is composed of an outer pipe 15a, an inner pipe 15b and a flow choking piece 15c made of red copper and arranged between the outer pipe and the inner pipe. The air and water flow in countercurrent in the air-water heat exchanger 3. The electric heating rod 7 is a U-shaped electric heating rod made of silicon-molybdenum materials. The fan 2 is a variable frequency fan.
The working principle and working process of the present invention will be explained in detail below.
In China, the power resources are in short supply, and related departments adopt a scheme of time interval peak-valley electricity price in order to optimize the electricity utilization structure and the electricity utilization mode and advocate energy-saving electricity utilization. Generally, the electricity price in the valley power period (generally 21: 00-the next day, 8:00, is the valley power period) is 1/3-2/5 of the electricity price in the peak power period, so the scheme of supplying hot water in the peak power period after storing heat by utilizing the valley power has the advantage of saving electricity charges and actively responds to the policy of optimizing the electricity utilization structure in China. By adopting the technical scheme of the invention, the heating switch is turned on the operation panel 4 at the off-peak electricity period at night, the electric heating rod 7 heats the heat storage element 6, the highest temperature is generally set to 300-1000 ℃, when the heat storage element 6 is heated to the target temperature, the electric heating rod 7 stops heating, at the moment, the heat storage is finished, and the device is in a heat preservation standby state. After the heat storage part shell 5 selects the high-temperature resistant inner heat insulation layer 10 with obvious heat insulation effect and the heat insulation plate outer heat insulation layer 9 made of ceramic materials, no matter hot water is needed in the daytime or at night, the fan 2 and the cold water pipe valve are only needed to be opened on the operation panel 4, the fan 2 sends cold air from the environment into the heat storage part 1 through the heat storage part shell 5, the cold air exchanges heat with the heat storage element 6, the cold air is heated to become hot air, then the hot air enters the annular cavity of the snake-shaped sleeve in the air-water heat exchanger 3, the outer pipe of the snake-shaped sleeve can select the outer pipe 15a made of stainless steel, the inner pipe can be the inner pipe 15b made of red copper, the annular cavity is formed between the outer stainless steel pipe and the inner red copper pipe, the red copper material flow blocking piece 15c is arranged in the annular cavity, the flow blocking piece 15c plays a role in heat exchange enhancement on air flow, and the hot air, the hot-blast discharge from the air outlet after becoming cold wind, cold water flows into in the red copper inner tube 15b of snakelike sleeve pipe heat transfer coil pipe from the water inlet, and water and wind carry out the heat transfer against current in the cover intraductal, and water is heated into and flows out from the delivery port behind the hot water, has realized just continuously supplying the hot water of stabilizing the temperature immediately. Therefore, the device of the invention can rapidly provide hot water for family life, wherein the air inlet heat insulation baffle 13 and the air outlet heat insulation baffle 16 can effectively prevent the high-temperature heat storage element from radiating outwards through the air duct.
In addition, after the air inlet of the fan 2 of the device is directly communicated with the air outlet of the sleeve-type snakelike heat exchange coil 15 through a pipeline, a closed-loop air circulation loop can be formed, so that the heat energy utilization efficiency can be further improved, and the heat energy can be saved. When the size of the shell of the device and the heat storage element are increased, the valley electricity can be adopted for heat storage type heating in winter. The device can also be used in the field of industrial drying, and at the moment, the heat exchanger is not needed to perform a gas-water heat exchange process, and hot air coming out of the heat storage component shell 5 is directly used for drying operation.
Claims (6)
1. A heat accumulation type electric water heater is characterized in that: the device comprises a heat storage component (1), a fan (2), an air-water heat exchanger (3) and an operation panel (4); the thermal storage member (1) includes a thermal storage member case (5), and a thermal storage element (6) and an electric heating rod (7) provided in the case; the fan (2) is arranged at the upper part of one side of the heat storage component shell (5), and an air outlet of the fan is communicated with the heat storage element (6); the air-water heat exchanger is arranged at the lower part of the other side of the heat storage component shell (5), and an air side inlet of the air-water heat exchanger is communicated with the heat storage element (6).
2. A heat storage type electric water heating apparatus as claimed in claim 1, wherein: an inner lining plate (11), an inner heat insulation layer (10), an outer heat insulation layer (9) and an outer shell (8) are sequentially arranged on the heat storage component shell (5) from inside to outside; an air inlet valve (12) for adjusting air quantity and an air inlet heat insulation baffle (13) for preventing heat from dissipating are arranged on the heat storage component shell (5) close to the air outlet position of the fan (2); an air outlet heat insulation baffle (16) for preventing heat loss is arranged on the heat storage component shell (5) close to one side of the air-water heat exchanger (3).
3. A heat storage type electric water heating apparatus as claimed in claim 1 or 2, wherein: the heat storage element (6) is a honeycomb-shaped porous structure formed by alumina ceramics, mullite ceramics, ceramic fiber plates or glass fibers.
4. A heat storage type electric water heating apparatus as claimed in claim 1 or 2, wherein: the air-water heat exchanger is composed of a heat exchanger shell (14) and a sleeve type snakelike heat exchange coil (15), wherein the heat exchange coil is composed of an outer pipe (15a), an inner pipe (15b) and a flow choking part (15c) which is made of red copper and arranged between the outer pipe and the inner pipe.
5. A heat storage type electric water heating apparatus as claimed in claim 1, wherein: the electric heating rod (7) is a U-shaped electric heating rod made of silicon-molybdenum materials.
6. A heat storage type electric water heating apparatus as claimed in claim 1, wherein: the fan (2) is a variable frequency fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010709740.8A CN111895649A (en) | 2020-07-22 | 2020-07-22 | Heat accumulation type electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010709740.8A CN111895649A (en) | 2020-07-22 | 2020-07-22 | Heat accumulation type electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111895649A true CN111895649A (en) | 2020-11-06 |
Family
ID=73189868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010709740.8A Pending CN111895649A (en) | 2020-07-22 | 2020-07-22 | Heat accumulation type electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111895649A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207365172U (en) * | 2017-10-27 | 2018-05-15 | 谭厚科 | A kind of adjustable solid heat storage stove of automatic wind-warm syndrome |
| CN208222842U (en) * | 2018-04-23 | 2018-12-11 | 国能聚力（北京）能源技术有限公司 | A kind of solid electric heat-storage device |
| CN110369459A (en) * | 2019-08-07 | 2019-10-25 | 崇州杨明电子产品有限公司 | A kind of kitchen garbage thermal cycle spray de-oiling demineralizer and method |
| CN210198146U (en) * | 2019-06-12 | 2020-03-27 | 珠海格力电器股份有限公司 | Double-pipe heat exchanger with fins |
| CN213066561U (en) * | 2020-07-22 | 2021-04-27 | 崇州杨明电子产品有限公司 | Heat accumulation type electric water heater |
-
2020
- 2020-07-22 CN CN202010709740.8A patent/CN111895649A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207365172U (en) * | 2017-10-27 | 2018-05-15 | 谭厚科 | A kind of adjustable solid heat storage stove of automatic wind-warm syndrome |
| CN208222842U (en) * | 2018-04-23 | 2018-12-11 | 国能聚力（北京）能源技术有限公司 | A kind of solid electric heat-storage device |
| CN210198146U (en) * | 2019-06-12 | 2020-03-27 | 珠海格力电器股份有限公司 | Double-pipe heat exchanger with fins |
| CN110369459A (en) * | 2019-08-07 | 2019-10-25 | 崇州杨明电子产品有限公司 | A kind of kitchen garbage thermal cycle spray de-oiling demineralizer and method |
| CN213066561U (en) * | 2020-07-22 | 2021-04-27 | 崇州杨明电子产品有限公司 | Heat accumulation type electric water heater |
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