CN103542515B - Intelligent temperature-control electric water heater provided with electric heaters with different powers - Google Patents
Intelligent temperature-control electric water heater provided with electric heaters with different powers Download PDFInfo
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- CN103542515B CN103542515B CN201310513572.5A CN201310513572A CN103542515B CN 103542515 B CN103542515 B CN 103542515B CN 201310513572 A CN201310513572 A CN 201310513572A CN 103542515 B CN103542515 B CN 103542515B
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Abstract
The invention provides an electric water heater. The electric water heater comprises a water heater inner container and electric heaters; the water heater inner container has a multilayered structure and comprises four side walls and a bottom wall; the four electric heaters are respectively arranged on the bottom wall and the side walls; along with rising of heating temperature, the first electric heater, the second electric heater, the third electric heater and the fourth electric heater are successively started; the power of the fourth electric heater is greater than that of the third electric heater; the power of the third electric heater is greater than that of the second electric heater; and the power of the second electric heater is greater than that of the first electric heater. By the electric heaters which have different powers and are started at different temperatures, the uniformity of the heating temperature is guaranteed.
Description
Technical field
The invention belongs to field of water heaters, relate in particular to a kind of intelligent temperature control electric heater with multiple different capacity electric heaters.
Background technology
The heating power of the electric heater generally using in family is at present more single, generally only has a kind of heating power, and heating power also can not change along with the raising of the temperature of water.Therefore in such cases, for the larger water heater of heating power, Once you begin heating, the temperature increase speed of water is very fast, for the inner bag of water heater, due to the effect of expanding with heat and contract with cold, temperature rise meeting fast causes the expansion fast of inner bag, rapid expanding repeatedly easily causes the conjugation of inner bag and other case materials lax, and can reduce the frequency of utilization of inner bag; Some water heater heating powers are lower, although can make water programming rate slow, thus the quick expanded by heating of inner bag reduced, and the firing rate of overall water is slower, has therefore affected the promptness using.
The present invention is directed to the deficiency of prior art, a kind of intelligent temperature control electric heater with different capacity electric heater is provided.Electric heater can be selected suitable heating power automatically according to the water temperature of water heater, reaches the object of automatically supplying with in the short period of time a large amount of hot water.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of intelligent temperature control electric heater with different capacity electric heater, thereby effectively reduces the rapid expanding of inner bag, has ensured the timely supply of hot water.
To achieve these goals, technical scheme of the present invention is as follows: a kind of electric heater with different capacity electric heater, described electric heater comprises water heater liner, electric heater, cold water inlet pipe, hot water outlet pipe, temperature sensor and central controller, described inner bag includes four-layer structure, every adjacent two-layer fitting tightly, ground floor is from the inside to the outside interior dope layer, the second layer is aluminium alloy layer, the 3rd layer is stainless steel layer, the 4th layer is rustproof lacquer layer, hot water outlet pipe is connected with water heater liner with cold water inlet pipe, it is characterized in that, described temperature sensor, between electric heater and described central controller, communication is connected, described inner bag comprises four sidewalls and a diapire, on diapire and each sidewall, be respectively arranged with four electric heaters, it is respectively the first electric heater, the second electric heater, the 3rd electric heater and the 4th electric heater, for the water of water heater is heated, in the time starting to heat, the first described electric heater on diapire and each sidewall starts heating, and the second electric heater, the 3rd electric heater and the 4th electric heater do not start heating, in the time that the temperature of water reaches the first temperature, the second described electric heater on diapire and each sidewall starts to start heating, diapire heats together with the first described electric heater on each sidewall, the second electric heater, and the 3rd electric heater and the 4th electric heater on diapire and each sidewall do not start heating, in the time that temperature reaches the second temperature, the 3rd described electric heater on diapire and each sidewall starts to start, diapire heats water together with the first described electric heater on each sidewall, the second electric heater, the 3rd electric heater, and the 4th electric heater on diapire and each sidewall does not start heating, in the time that temperature reaches the 4th temperature, the 4th described electric heater on diapire and each sidewall starts to start, and diapire heats water with together with described all electric heaters on each sidewall, described central controller comprises regulon, and described regulon, according to the temperature of the water of described temperature sensor measurement, produces the conditioning signal of controlling described electric heater.
Described temperature sensor is multiple, wherein at least one temperature sensor is arranged on the hot water outlet position of inner bag, be used for measuring the temperature of outlet hot water, at least one temperature sensor is arranged on the cold water inlet position of inner bag, be used for measuring the water temperature of entrance cold water, wherein at least one temperature sensor is arranged on other positions of water heater liner, be used for measuring the temperature of water in water heater liner, described regulon produces the conditioning signal of controlling described electric heater by the mean value of the temperature of multiple temperature sensor measurements.
Electric heater on described each sidewall distributes along the short transverse of water heater liner, is up wherein the 4th electric heater, the second electric heater, the first electric heater, the 3rd electric heater successively from water heater liner bottom.
Described each sidewall and/or on electric heater distribute along the height stagger arrangement of water heater liner.
Electric heater on described each sidewall linearly distributes along the height of water heater liner, in short transverse, the second electric heater and the first electric heater are the first electric heater and the 3rd electric heater distance 0.8-0.9 times, and the distance of the 4th electric heater and the second electric heater is the second electric heater and the first electric heater distance 0.7-0.75 times.
Electric heater on described each sidewall linearly distributes along the height of water heater liner, and the angle of the center line of described straight line and sidewall is 30-45 °.
Described cold water inlet pipe is arranged near the position that the diapire on diapire is connected with sidewall, and the electric heater of diapire is apart from cold water inlet pipe distance being distributed as from the close-by examples to those far off: the 4th electric heater, the second electric heater, the first electric heater and the 3rd electric heater.
The mass percent of the component of the aluminium alloy of aluminium alloy layer is as follows: 6.0% Cu, and 0.9% Mg, 0.6% Ag, 0.8% Mn, 0.13% Zr, 0.1% Ce, 0.10% Ti, 0.15% Si, all the other are Al.
The power of the 4th electric heater on each sidewall and/or diapire is greater than the power of the 3rd electric heater, and the power of the 3rd electric heater is greater than the power of the second electric heater, and the power of the second electric heater is greater than the power of the first electric heater.
Described electric heater also comprises water level controller, flow controller, flow sensor, water level controller, flow controller, flow sensor are connected with central controller communication, flow sensor and flow controller are arranged on water heater inlet tube, and described flow sensor is for measuring the flow of the water that flows into water heater liner; Described flow controller is used for controlling the flow velocity of the water on water heater inlet tube, described water level controller is for measuring the water level of water heater liner, and measurement result is passed to central controller, central controller is controlled the flow velocity of flow controller according to the water level of measuring and flow.
Flow controller is valve or pump.
Described the first temperature is 50 degrees Celsius, and the second temperature is 60 degrees Celsius, and the 3rd temperature is 75 degrees Celsius.
Electric heater is made up of electrothermal alloy, the following Ni 34% of mass percent of described electrothermal alloy; Cr 18%; Al 5%; C 0.05%; B 0.006%; Co 2%; W 4%; Mo 4%; Ti 2%; Nb 0.1%; La 0.2%; Ce0.2%; Fe surplus.
Compared with prior art, the present invention has advantages of as follows:
1) by multiple electric heaters are set, when water heater has just started heating, only start one of them electric heater, thus the temperature of lifting water slowly, thus avoid the temperature of water to improve fast, avoid the quick heat expansion of water heater liner; When reaching after certain water temperature, water heater inwall now heat slowly increases to a certain degree, is therefore now strengthening heating power, can't produce the speed that the heat of the water heater at heating initial stage rises, the service life of therefore having improved water heater.
2), by electric heater being all set at four sidewalls and diapire, can ensure the even water temperature of heating;
3) electric heater is arranged in the short transverse of water heater liner, and the electric heater that first starts heating is placed on to the centre of three electric heaters, thereby reduce the electric heater first starting to the heat of the inner bag diapire phenomenon that rises.
4), by water level controller, flow controller, flow sensor, realize the control of the flow velocity to entering water heater.
5) by multiple temperature sensors are set, with the water temperature that ensures to measure accurately.
6), by the setting of electric heater spacing and heating power, realize the homogeneous heating to water.
7) reasonable distribution of the mass percent of the component of the aluminium alloy by aluminium alloy layer, improves high-fire resistance and the Testing Tensile Strength at Elevated Temperature of the alloy-layer of inner bag.
8) by the setting of the component to electrothermal alloy, make electrothermal alloy there is high non-oxidizability and resistance to corrosion.
Brief description of the drawings
Fig. 1 is the structure chart of water heater liner
Fig. 2 is the overall appearance figure of water heater
Fig. 3 is the schematic diagram of electric heater work of the present invention
Fig. 4 is the wherein a kind of distribution map of electric heater on sidewall
Fig. 5 is the wherein another kind of distribution map of electric heater on sidewall
Reference numeral is as follows: 1 central controller, the first electric heater of 2 the first side walls, the second electric heater of 3 the first side walls, the 3rd electric heater of 4 the first side walls, the 4th electric heater of 5 the first side walls, 6 cold water inlet pipes, 7 hot water outlet pipes, 8 temperature sensors, 9 temperature sensors, 10 temperature sensors, 11 flow sensors, 12 flow controllers, 13 water heater liners, the 3rd electric heater of 14 diapires, the first electric heater of 15 diapires, the second electric heater of 16 diapires, the 4th electric heater of 17 diapires, the first electric heater of 18 second sidewalls, the second electric heater of 19 second sidewalls, the 3rd electric heater of 20 second sidewalls, the 4th electric heater of 21 second sidewalls, the ground floor of 22 inner bags, the second layer of 23 inner bags, the 3rd layer of 24 inner bags, the 4th layer of 25 inner bags, 26 shells
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
First, please refer to Fig. 1, a kind of intelligent temperature control electric heater with different capacity electric heater, described electric heater comprises water heater liner 13 and shell 26, water heater bottom arranges cold water inlet pipe 6, and a side on top is provided with hot water outlet pipe 7, and cold water enters water heater liner 13 by cold water inlet pipe 6, then in water heater liner 13, heat, then flow out by hot water outlet pipe 7.
Fig. 2 has shown the schematic diagram of water heater liner 13.Water heater liner 13 is divided into four layers; every adjacent two-layer fitting tightly; respectively from inside to outside interior dope layer 22, aluminium alloy layer 23, stainless steel layer 24 and rustproof lacquer layer 25; water heater liner 13 is owing to having adopted said structure; ground floor is interior dope layer; can avoid occurring corrosion; the second layer is aluminium alloy layer; make to conduct heat evenly effective; the 3rd layer is stainless steel layer, makes the outer surface of inner bag not only attractive in appearance, can also make the heat transfer of inner bag faster; the 4th layer is rustproof lacquer layer, can protect copper layer to avoid producing corrosion.
Sidewall and the diapire of the inner bag 13 that Fig. 2 shows are the obtuse angle that is greater than 90 °, certainly, the sidewall of inner bag and diapire are not limited to the form of accompanying drawing, and inner bag and sidewall can be the angle of 90 °, inner bag can be cube shaped, is made up of four mutually perpendicular sidewalls and diapire.
Be not limited to the material of foregoing description for the material in inner bag 13, those skilled in the art can reasonably select, but for the selection of the material of the four-layer structure of inner bag, requirement is that the thermal coefficient of expansion of four-layer structure from inside to outside increases gradually, that is to say, the thermal coefficient of expansion of innermost layer is minimum, and the second layer secondly, the 3rd layer is greater than the second layer but is less than the 4th layer, the 4th layer of maximum.Why such setting, because in the process of heating, ground floor is first heated, first expand, then be the second layer, the 3rd layer, the 4th layer expanded by heating successively, therefore four layers of expansion number of times increase successively and can ensure that expansion rate is consistent substantially, ensure each layer of compactness and the stability connecting.
As shown in Figure 3, described electric heater comprises electric heater, temperature sensor and central controller 1, wherein hot water outlet pipe 7 is connected with water heater liner 13 with cold water inlet pipe 6, described temperature sensor 8-10, electric heater 2-5,14-17, between 18-21 and described central controller 1, communication is connected, and described inner bag 13 comprises four sidewalls (only having shown two sidewalls in Fig. 3) and a diapire, is respectively arranged with four electric heaters on diapire and each sidewall.As shown in Figure 3, on the first side wall of the water heater liner of Fig. 3, be respectively the first electric heater 2, the second electric heater 3, the 3rd electric heater 4 and the 4th electric heater 5, on the second sidewall of the water heater liner of Fig. 3, be in like manner respectively the first electric heater 18, the second electric heater 19, the 3rd electric heater 20 and the 4th electric heater 21, the setting of the electric heater of two of water heater liner outer two sidewalls is simultaneously identical with arranging of the first side wall and the second sidewall, is respectively arranged with four electric heaters; Being provided with four electric heaters at the diapire of inner bag 13, is respectively the 3rd electric heater 14, the first electric heater 15, the second electric heater 16 and the 4th electric heater 17, and the electric heater of above-mentioned setting is used for the water of water heater to heat; In the time starting to heat, described the first electric heater 2,18 on diapire and each sidewall, 15(comprise the first electric heater on unshowned two sidewalls) start heating, the second electric heater, the 3rd electric heater and the 4th electric heater do not start heating; In the time that the temperature of water reaches the first temperature, the second described electric heater on diapire and each sidewall starts to start heating, diapire heats together with the first described electric heater on each sidewall, the second electric heater, and the 3rd electric heater and the 4th electric heater on diapire and each sidewall do not start heating; In the time that temperature reaches the second temperature, the 3rd described electric heater on diapire and each sidewall starts to start, diapire heats water together with the first described electric heater on each sidewall, the second electric heater, the 3rd electric heater, and the 4th electric heater on diapire and each sidewall does not start heating; In the time that temperature reaches the 3rd temperature, the 4th described electric heater on diapire and each sidewall starts to start, and diapire heats water with together with described all electric heaters on each sidewall; Described central controller 1 comprises regulon, and described regulon, according to the temperature of the water of described temperature sensor measurement, produces the conditioning signal of controlling described electric heater.
In the process of reality heating, as long as the temperature of water is lower than the first temperature, only start the first electric heater of diapire and four sidewalls, if the temperature of water is between the first temperature and the second temperature time, start the first electric heater and second electric heater of diapire and four sidewalls simultaneously, if the temperature of water is between the second temperature and the 3rd temperature time, start the first electric heater of diapire and four sidewalls simultaneously, the second electric heater and the 3rd electric heater, in the time that the temperature of water reaches or exceed the 3rd temperature, all electric heaters start and heat simultaneously.
Described temperature sensor is multiple, is all arranged in inner bag 5.As shown in Figure 3, one of them temperature sensor 8 is arranged on the hot water outlet position of inner bag, be used for measuring the hot water temperature of outlet hot water, one of them temperature sensor 9 is arranged on the cold water inlet position of inner bag, be used for measuring the water temperature of entrance cold water, wherein at least one temperature sensor 10 is arranged on other positions of water heater liner, is used for measuring the temperature of water heater liner 10 interior water, for example the bottom that is arranged on inner bag 5 as shown in Figure 3.Described regulon produces the conditioning signal of controlling described electric heater by the mean value of the temperature of multiple temperature sensor measurements.
Although the quantity of the temperature sensor in Fig. 3 is 3, in fact, the quantity of temperature sensor is not limited to 3, and for example the quantity of the sensor of water heater hot-water exit position, cold water inlet position and other positions can be more than two.By being set, multiple temperature sensors can increase the measurement accuracy of water temperature.
Certainly, those skilled in the art also can select temperature sensor to be arranged on hot water inlet pipe and/or cooling water outlet pipe as required, with the come together mean value of computation and measurement temperature of the temperature sensor that is arranged on inner bag.
As shown in Figure 3, the electric heater of described the first side wall distributes along the short transverse of water heater liner, is up wherein the 4th electric heater 5, the second electric heater 3, the first electric heater 2, the 3rd electric heater 4 successively from water heater liner bottom.The setting of the electric heater of other sidewalls is identical with arranging of the first side wall.
Electric heater on described each sidewall linearly distributes along the height of water heater liner, in short transverse, the second electric heater 3 and the first electric heater 2 are the first electric heater 2 and the 3rd electric heater 4 distances 0.8-0.9 times, and the distance of the 4th electric heater 5 and the second electric heater 3 is the second electric heater 3 and the first electric heater 2 distances 0.7-0.75 times.The setting of the electric heater of other sidewalls is identical with arranging of the first side wall.
The power of the 4th electric heater 5 is greater than the power of the 3rd electric heater 4, and the power of the 3rd electric heater 4 is greater than the power of the second electric heater 3, and the power of the second electric heater 3 is greater than the power of the first electric heater 2.The setting of the electric heater of other sidewalls is identical with arranging of the first side wall.
Described cold water inlet 6 is arranged near the position that the diapire on diapire is connected with sidewall, and the electric heater of diapire is apart from cold water inlet pipe 6 distances being distributed as from the close-by examples to those far off: the 4th electric heater 17, the second electric heater 16, the first electric heater 15 and the 3rd electric heater 14.
Diapire is upper, and the power of the 4th electric heater 17 is greater than the power of the 3rd electric heater 14, and the power of the 3rd electric heater 14 is greater than the power of the second electric heater 16, and the power of the second electric heater 16 is greater than the power of the first electric heater 15.
By above-mentioned position and the setting of power, can improve the harmony of the heating of water, ensure the uniformity that each wall surface temperature promotes.
Described electric heater also comprises water level controller (Fig. 3 is not shown), flow controller 12, flow sensor 11, water level controller, flow controller 12, flow sensor 11 are connected with central controller 1 communication, flow sensor 11 and flow controller 12 are arranged on water heater inlet tube 6, and described flow sensor 11 is for measuring the flow of the water that flows into water heater liner 5; Described flow controller 12 is used for controlling the flow velocity of the water on water heater inlet tube 6, described water level controller is for measuring the water level of water heater liner, and measurement result is passed to central controller 1, central controller 1 is controlled the flow velocity of flow controller 12 according to the water level of measuring and flow, central controller 1 can also be according to the flow velocity of water temperature and flow-control flow controller 12.For example, if the water temperature in water tank has exceeded user's demand, increase the flow of water in reduction water temperature by arranging, in like manner, if the water temperature in water tank, lower than user's demand, can ensure by reducing the flow of water the Fast Heating of water.User's demand can arrange by user interface (not shown).If water level declines, increase flow velocity by control and increase the flow of the water that enters inner bag, if water level is too high, by reducing or stop the discharge that the flow velocity of water reduces or avoid entering interior road.
The electric heater of having shown the first side wall as Fig. 4 distributes along the height stagger arrangement of water heater liner.Certainly the electric heater on each sidewall and diapire can adopt stagger arrangement as shown in Figure 4 to distribute,
Electric heater on described each sidewall linearly distributes along the height of water heater liner, and as shown in Figure 5, the angle of the center line of described straight line and sidewall is 30-45 ° (two dotted line angulations shown in Fig. 5).Certainly the electric heater on diapire can adopt stagger arrangement as shown in Figure 5 to distribute.
Arrange by above-mentioned electric heater position, can improve the harmony of the heating of water, ensure the uniformity that each wall surface temperature promotes.
In actual applications, can also arrange and prevent dryouting device, all be immersed in water with the electric heater that ensures to heat.If electric heater is not immersed in water, electric heater stops heating automatically, prevents dry combustion method.While flooding electric heater Deng water level rising, heat again.
The mass percent of the component of the aluminium alloy of aluminium alloy layer is as follows: 6.0% Cu, and 0.9% Mg, 0.6% Ag, 0.8% Mn, 0.13% Zr, 0.1% Ce, 0.10% Ti, 0.15% Si, all the other are Al.
The manufacture method of aluminium alloy is: adopt vacuum metallurgy melting, argon for protecting pouring becomes circle base, through 600 DEG C of homogenising processing, at 400 DEG C, adopts and is hot extruded into bar, and then after 580 DEG C of solution hardening, carry out artificial aging processing at 200 DEG C.The tensile strength sigma b of alloy: room temperature >=550MPa, 200 DEG C >=440MPa, 300 DEG C >=-230MPa.
Electric heater is made up of electrothermal alloy, the following Ni 34% of mass percent of described electrothermal alloy; Cr 18%; Al 5%; C 0.05%; B 0.006%; Co 2%; W 4%; Mo 4%; Ti 2%; Nb 0.1%; La 0.2%; Ce0.2%; Fe surplus.
The manufacture method of electrothermal alloy is: become ingot by the composition smelting and pouring according to electrothermal alloy in vaccum sensitive stove, then at 1200 DEG C-900 DEG C, alloy pig forge hot is become to bar, be rolled into dish material at 1200 DEG C-900 DEG C, then become the silk material of different size in room temperature cold-drawn.
Be Cr20Ni80 alloy in order to replace widely used NiCr, and manufactured electrothermal alloy cheaply, the non-oxidizability of alloy and Cr20Ni80 contrast are as follows:
Although the present invention discloses as above with preferred embodiment, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (1)
1. an electric heater, described electric heater comprises water heater liner, electric heater, cold water inlet pipe, hot water outlet pipe, temperature sensor and central controller, described inner bag includes four-layer structure, every adjacent two-layer fitting tightly, ground floor is from the inside to the outside interior dope layer, the second layer is aluminium alloy layer, the 3rd layer is stainless steel layer, the 4th layer is rustproof lacquer layer, hot water outlet pipe is connected with water heater liner with cold water inlet pipe, it is characterized in that, described temperature sensor, between electric heater and described central controller, communication is connected, described inner bag comprises four sidewalls and a diapire, eachly on diapire and four sidewalls be provided with respectively four electric heaters, it is respectively the first electric heater, the second electric heater, the 3rd electric heater and the 4th electric heater, for the water of water heater is heated, in the time starting to heat, the first described electric heater on diapire and each sidewall starts heating, and the second electric heater, the 3rd electric heater and the 4th electric heater do not start heating, in the time that the temperature of water reaches the first temperature, the second described electric heater on diapire and each sidewall starts to start heating, diapire heats together with the first described electric heater on each sidewall, the second electric heater, and the 3rd electric heater and the 4th electric heater on diapire and each sidewall do not start heating, in the time that temperature reaches the second temperature, the 3rd described electric heater on diapire and each sidewall starts to start, diapire heats water together with the first described electric heater on each sidewall, the second electric heater, the 3rd electric heater, and the 4th electric heater on diapire and each sidewall does not start heating, in the time that temperature reaches the 3rd temperature, the 4th described electric heater on diapire and each sidewall starts to start, and diapire heats water with together with described all electric heaters on each sidewall, described central controller comprises regulon, and described regulon, according to the temperature of the water of described temperature sensor measurement, produces the conditioning signal of controlling described electric heater,
The power of the 4th electric heater on each sidewall and/or diapire is greater than the power of the 3rd electric heater, and the power of the 3rd electric heater is greater than the power of the second electric heater, and the power of the second electric heater is greater than the power of the first electric heater;
Electric heater on described each sidewall linearly distributes along the height of water heater liner, and the angle of the center line of described straight line and sidewall is 30-45 °;
The mass percent of the component of the aluminium alloy of aluminium alloy layer is as follows: 6.0%Cu, and 0.9%Mg, 0.6%Ag, 0.8%Mn, 0.13%Zr, 0.1%Ce, 0.10%Ti, 0.15%Si, all the other are Al;
Described cold water inlet pipe is arranged near the position that the diapire on diapire is connected with sidewall, and the electric heater of diapire is apart from cold water inlet pipe distance being distributed as from the close-by examples to those far off: the 4th electric heater, the second electric heater, the first electric heater and the 3rd electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310513572.5A CN103542515B (en) | 2013-03-28 | 2013-03-28 | Intelligent temperature-control electric water heater provided with electric heaters with different powers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310513572.5A CN103542515B (en) | 2013-03-28 | 2013-03-28 | Intelligent temperature-control electric water heater provided with electric heaters with different powers |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310102881 Division CN103196219B (en) | 2013-03-28 | 2013-03-28 | Electric water heater capable of convert heating power automatically |
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| CN103542515A CN103542515A (en) | 2014-01-29 |
| CN103542515B true CN103542515B (en) | 2014-08-06 |
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| CN201310513572.5A Expired - Fee Related CN103542515B (en) | 2013-03-28 | 2013-03-28 | Intelligent temperature-control electric water heater provided with electric heaters with different powers |
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| CN107166733B (en) * | 2017-06-26 | 2019-12-13 | 成都中装能源科技有限公司 | electromagnetic heating device and load self-adaption method thereof |
| CN113686016B (en) * | 2020-05-19 | 2022-12-06 | 芜湖美的厨卫电器制造有限公司 | Water heater, control method and readable storage medium |
| CN111895656A (en) * | 2020-07-24 | 2020-11-06 | 北京市伟业供热设备有限责任公司 | Anti-freezing control method of air source heat pump unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1022189A (en) * | 1964-01-23 | 1966-03-09 | Santon Ltd | Improvements relating to electric storage water heaters |
| US6363216B1 (en) * | 1999-07-27 | 2002-03-26 | Kenneth A. Bradenbaugh | Water heater having dual side-by-side heating elements |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990012988A1 (en) * | 1989-04-19 | 1990-11-01 | M.T. Associates Proprietary Ltd. | Hot water heaters |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1022189A (en) * | 1964-01-23 | 1966-03-09 | Santon Ltd | Improvements relating to electric storage water heaters |
| US6363216B1 (en) * | 1999-07-27 | 2002-03-26 | Kenneth A. Bradenbaugh | Water heater having dual side-by-side heating elements |
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