CN112762610A - Water heater and control method thereof - Google Patents
Water heater and control method thereof Download PDFInfo
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- CN112762610A CN112762610A CN202110187810.2A CN202110187810A CN112762610A CN 112762610 A CN112762610 A CN 112762610A CN 202110187810 A CN202110187810 A CN 202110187810A CN 112762610 A CN112762610 A CN 112762610A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 516
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 207
- 238000004891 communication Methods 0.000 claims description 27
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 10
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000008236 heating water Substances 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 description 11
- 230000009977 dual effect Effects 0.000 description 7
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
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- 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
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
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- 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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention belongs to the technical field of water heaters, and particularly relates to a water heater and a control method thereof, aiming at solving the problem that in the prior art, the time consumed for heating water in a first inner container first, then heating water in a second inner container and heating the water in the second inner container to a preset temperature is long. The water heater comprises a first inner container and a second inner container, wherein a first heating pipe is arranged in the first inner container; the second inner bag sets up in the top of first inner bag, and second inner bag and first inner bag intercommunication are equipped with the second heating pipe in the second inner bag, and the second heating pipe includes horizontal segment and slope section, and the horizontal segment is close to the bottom of second inner bag, and the end of slope section is close to the top of second inner bag. Through the arrangement, when the water flowing to the second inner container from the first inner container is the useless hot water in the double-container heating mode of the water heater, the water in the second inner container is heated by the water heater, the useless hot water can be directly heated by the second heating pipe, the useless hot water is quickly heated to the preset temperature so as to meet the requirement of a user, and the consumed time is short.
Description
Technical Field
The invention belongs to the technical field of water heaters, and particularly relates to a water heater and a control method thereof.
Background
The water heater is a common electric appliance in daily life, and can heat cold water into hot water with a proper temperature for users to use. The existing water heater is only provided with one inner container, so that the quantity of hot water required by a user is small when people wash or bathe in the morning, but the water heater still needs to heat the water in the whole inner container, the consumed time is long, the residual hot water is large, and the energy consumption is wasted.
Fig. 1 is a schematic view of a related art dual bladder water heater. In order to solve the above problems, a dual-tank water heater is proposed in the related art, as shown in fig. 1, the dual-tank water heater includes a first tank 10, a second tank 20, a communication pipe 30, a water inlet pipe 11 and a water outlet pipe 21, the second tank 20 is disposed above the first tank 10, the water inlet pipe 11 is used for feeding water into the first tank 10, the water outlet pipe 21 is used for guiding out water in the second tank 20, one end of the communication pipe 30 extends into the first tank 10, and the other end of the communication pipe 30 extends into the second tank 20, so that the first tank 10 is communicated with the second tank 20; and the lower part of the first inner container 10 is provided with a first heating pipe 12, the lower part of the second inner container 20 is provided with a second heating pipe 22, and the water heater can control the first heating pipe 12 and/or the second heating pipe 22 to work. In one operation mode, the water heater can only control the second heating pipe 22 to work, so that the water in the second inner container 20 is heated to a preset temperature, the amount of the heated water is small, and the water heater is suitable for the situation that the amount of the hot water used by a user is small. In another working mode, the water heater may first control the first heating pipe 12 to work, so as to heat the water in the first inner container 10 to a preset temperature, and then the hot water in the first inner container 10 flows to the second inner container 20 and is discharged, and when the temperature of the water in the first inner container 10 is reduced from the preset temperature to a set temperature, the water heater then controls the second heating pipe 22 to work, so as to heat the water in the second inner container 20 to the preset temperature.
However, in another operation mode, after the temperature of the water in the first inner container 10 is decreased from the preset temperature to the set temperature, the second heating pipe 22 heats the water in the second inner container 20 to the preset temperature for a longer time.
Disclosure of Invention
The embodiment of the invention provides a water heater and a control method thereof, which are used for solving the problems in the prior art, namely solving the problem that the time consumed for heating the water in a first inner container, the water in a second inner container and the water in the second inner container to a preset temperature is long in the prior art.
In one aspect, an embodiment of the present invention provides a water heater, including: the heating device comprises a first inner container and a second inner container, wherein a first heating pipe is arranged in the first inner container; the second inner container is arranged above the first inner container and communicated with the first inner container, a second heating pipe is arranged in the second inner container and comprises a horizontal section and an inclined section, the horizontal section is close to the bottom of the second inner container, and the tail end of the inclined section is close to the top of the second inner container.
The water heater as described above, wherein the inclined section is helical; and/or a first communicating port is arranged on the first inner container, a second communicating port is arranged on the second inner container, and the first communicating port is communicated with the second communicating port.
The water heater is characterized in that the second inner container is provided with a water outlet, and the second communication port and the water outlet are arranged at two ends of the second inner container.
The water heater as above, wherein the capacity of the second inner container is smaller than the capacity of the first inner container.
The water heater as described above, wherein a capacity ratio of the first liner to the second liner is 4: 1-10: 1.
the water heater is characterized in that an insulating layer is arranged between the first inner container and the second inner container; or the thickness of one side of the first inner container, which is close to the second inner container, is larger than that of the second inner container.
The water heater also comprises a support plate, wherein the support plate is sleeved on the horizontal section and is in contact with the inner wall of the second inner container; a plurality of water mixing holes are formed in the supporting plate and are uniformly distributed around the axis of the second inner container; and/or magnesium rods are arranged in the first inner container and the second inner container.
The water heater is characterized in that the supporting plate is provided with a plurality of supporting plates which are arranged at intervals along the axis of the second inner container.
The water heater further comprises a first temperature measuring device, a second temperature measuring device and a controller, wherein the first temperature measuring device is used for measuring the water temperature at the position where the first inner container is communicated with the second inner container, the second temperature measuring device is used for measuring the temperature of water flowing out of the second inner container, and the controller is electrically connected with the first heating pipe, the second heating pipe, the first temperature measuring device and the second temperature measuring device; the controller is used for controlling the first heating pipe to heat after the constant temperature heating mode is selected, controlling the first heating pipe to stop heating after the temperature detected by the first temperature measuring device reaches a constant temperature threshold value, and controlling the second heating pipe to start and stop according to the temperature detected by the second temperature measuring device, so that the temperature of water flowing out of the second inner container is consistent with the constant temperature threshold value.
On the other hand, an embodiment of the present invention provides a control method for a water heater, including: responding to the signal selected by the constant temperature heating mode, and controlling the first heating pipe to heat; acquiring the temperature detected by the first temperature measuring device; when the temperature detected by the first temperature measuring device reaches a constant temperature threshold value, controlling the first heating pipe to stop heating; acquiring the temperature detected by the second temperature measuring device; and controlling the second heating pipe to start and stop according to the temperature detected by the second temperature measuring device so as to enable the temperature of the water flowing out of the second inner container to be consistent with the constant temperature threshold value.
As can be understood by those skilled in the art, the embodiment of the invention provides a water heater and a control method thereof, wherein the water heater comprises a first inner container and a second inner container, wherein a first heating pipe is arranged in the first inner container; the second inner bag sets up in the top of first inner bag, and second inner bag and first inner bag intercommunication are equipped with the second heating pipe in the second inner bag, and the second heating pipe includes horizontal segment and slope section, and the horizontal segment is close to the bottom of second inner bag, and the end of slope section is close to the top of second inner bag. Through the arrangement, when the water flowing to the second inner container from the first inner container is the useless hot water in the double-container heating mode of the water heater, the water in the second inner container is heated by the water heater, the second heating pipe can directly heat the useless hot water, the useless hot water can be quickly heated to the preset temperature to meet the requirement of a user, and the consumed time is short.
Drawings
Preferred embodiments of a water heater according to an embodiment of the present invention will be described below with reference to the accompanying drawings. The attached drawings are as follows:
FIG. 1 is a schematic view of a related art dual bladder water heater;
FIG. 2 is a schematic view of a water heater provided in an embodiment of the present application;
FIG. 3 is a front view of a water heater according to an embodiment of the present application;
FIG. 4 is a schematic view of a water heater with a heating mode of the bladder selected according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a portion of another water heater provided in an embodiment of the present application;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
fig. 7 is a control schematic diagram of a water heater according to an embodiment of the present application.
In the drawings:
100: a water heater;
10: a first inner container; 11: a water inlet pipe; 12: a first heating pipe;
20: a second inner container; 21: a water outlet pipe; 22: a second heating pipe; 221: a horizontal segment; 222: an inclined section; 23: a support plate; 231: a water mixing hole;
30: a communicating pipe;
40: a housing; 41: a cold water pipe; 42: a water mixing valve; 43: a main discharge pipe; 44: water using equipment;
50: a controller;
60: a first temperature measuring device;
70: a second temperature measuring device;
80: a magnesium rod;
90: a display device.
Detailed Description
First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.
Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or a member must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the related art, as shown in fig. 1, the dual-liner water heater can only control the second heating pipe 22 to heat, the second heating pipe 22 heats water in the second liner 20, the heating time is short, the amount of hot water obtained is small, and the dual-liner water heater is suitable for the situation that the hot water demand of a user is small.
The double-liner water heater can also control the first heating pipe 12 and the second heating pipe 22 to work, so that the water in the first liner 10 and the water in the second liner 20 are heated, more hot water is produced, and the double-liner water heater is suitable for the situation that the hot water demand of a user is large. Specifically, in one of the operating modes, the dual-liner water heater may control the first heating pipe 12 to operate first, so as to heat the water in the first liner 10 to a preset temperature to meet the requirement of the user, the hot water in the first liner 10 flows to the second liner 20 and is then discharged, and the water in the first liner 10 is gradually cooled; when the water in the first inner container 10 is cooled to the set temperature, the water in the first inner container 10 reaching the set temperature flows to the second inner container 20 and floats on the top of the second inner container 20, at the moment, the double-container water heater controls the second heating pipe 22 to work again, the second heating pipe 22 heats the cold water at the lower part of the second inner container 20, so that the temperature of the cold water at the lower part of the second inner container 20 is increased, the water at the lower part is heated and conducts heat to the water floating on the top of the second inner container 20, when the temperature of the cold water at the lower part of the second inner container 20 and the water floating on the top of the second inner container 20 is increased to the preset temperature, the temperature of the water discharged from the second inner container 20 can be suitable for users, and the heating time is long.
In view of this, the present disclosure provides a water heater and a control method thereof, where the water heater also has a first inner container and a second inner container, and a heating pipe disposed in the second inner container is capable of heating water at the top of the second inner container. Like this, when the water of first inner bag reduced to the settlement temperature, reach the water flow of settlement temperature in the first inner bag to the second inner bag and float at the top of second inner bag 20, the heating pipe work in the second inner bag this moment to can be directly to floating at the top of second inner bag, and the water heating that the temperature reached the settlement temperature, so that this part of water is improved to preset temperature by the settlement temperature, the temperature of second inner bag exhaust water just can be fit for the user and use, and rate of heating is fast, consuming time is short.
Example one
Fig. 2 is a schematic view of a water heater provided in an embodiment of the present application. Referring to fig. 2, the embodiment of the present application provides a water heater 100, where the water heater 100 includes a casing 40, a first liner 10, and a second liner 20, the first liner 10 and the second liner 20 are both disposed in the casing 40, the first liner 10 and the second liner 20 are both used for containing water, the second liner 20 is disposed above the first liner 10, and the first liner 10 is communicated with the second liner 20. The capacities of the first and second inner containers 10 and 20 may be the same or different.
The first inner container 10 is also provided with a water inlet, and cold water is injected into the first inner container 10 through the water inlet; the second inner container 20 is further provided with a water outlet, and water in the first inner container 10 and the second inner container 20 is led out through the water outlet so as to be used by a user.
Specifically, the water heater 100 further includes a cold water pipe 41, a water inlet pipe 11, a water outlet pipe 21, a main discharge pipe 43 and a mixing valve 42, wherein a water inlet end of the cold water pipe 41 is connected to a tap water pipe, a water outlet end of the cold water pipe 41 has two branches, one branch of the cold water pipe 41 is connected to the main discharge pipe 43 through the mixing valve 42, the other branch of the cold water pipe 41 is connected to the water inlet pipe 11, the water inlet pipe 11 is communicated with a water inlet to inject cold water into the first inner container 10, the water outlet pipe 21 is communicated with a water outlet, a water outlet end of the water outlet pipe 21 is connected to the main discharge pipe 43 through the mixing valve 42, and the. Here, the water device 44 should be understood in a broad sense, that is, the water device 44 may be understood as a shower head, a faucet, or the like.
Wherein, the water inlet pipe 11 can extend into the first inner container 10, and the water outlet end of the water inlet pipe 11 can be close to the bottom of the first inner container 10. In fig. 2, the portion of the water inlet pipe 11 extending into the first liner includes a first horizontal water inlet pipe, an inclined water inlet pipe and a second horizontal water inlet pipe which are connected in sequence. The first horizontal water inlet pipe is fixed on the first inner container 10 and extends along the direction parallel to the central axis of the first inner container 10; the inclined water inlet pipe gradually extends downwards from one end connected with the first horizontal water inlet pipe to one end connected with the second horizontal water inlet pipe; the second horizontal water inlet pipe is close to the bottom of the first liner 10 and extends in a direction parallel to the central axis of the first liner 10.
The water outlet pipe 21 extends into the second inner container 20, and the water inlet end of the water outlet pipe 21 is close to the top of the second inner container 20, so that the hot water can be conveniently led out. It should be noted that, when the water heater 100 is in the initial state, the water level of the second inner container 20 is flush with the water inlet end of the water outlet pipe 21.
The mixing valve 42 not only controls the on/off of the main discharge pipe 43, but also adjusts the ratio of hot water and cold water entering the main discharge pipe 43 so that the temperature of the water flow discharged to the water using device 44 matches the user's demand. When the water mixing device is used, cold water is input into the first inner container 10 through the water inlet pipe 11 by the cold water pipe 41, water in the first inner container 10 flows to the second inner container 20, water in the second inner container 20 is led out to the water mixing valve 42 through the water outlet pipe 21, and then mixed with the cold water input by the cold water pipe 41, and the mixed water flows to the water using equipment 44 through the main discharge pipe 43 and is discharged.
The first inner container 10 is further provided with a first heating pipe 12, the first heating pipe 12 is used for heating water stored in the first inner container 10, the second inner container 20 is further provided with a second heating pipe 22, and the second heating pipe 22 is used for heating water stored in the second inner container 20.
With continued reference to fig. 2, the first heating tube 12 may be U-shaped such that the effective heating length of the first heating tube 12 is greater. In addition, the first heating pipe 12 may be close to the bottom of the first inner container 10 to heat the water at the bottom of the first inner container 10.
In this embodiment, the second heating pipe 22 includes a horizontal section 221 and an inclined section 222, the horizontal section 221 is near the bottom of the second inner container 20, and the end of the inclined section 222 is near the top of the second inner container 20. Wherein, the end of the inclined section 222 refers to the end of the inclined section 222 away from the horizontal section 221, i.e. the upper end of the inclined section 222 shown in fig. 2. It can be seen that the angled section 222 extends from the bottom of the second bladder 20 to the top of the second bladder 20. With this arrangement, the horizontal section 221 can heat water at the bottom of the second inner container 20, and the inclined section 222 can heat water at the middle and top of the second inner container 20.
Here, the inclined section 222 should be broadly understood, that is, the inclined section 222 may be understood as being inclined from the horizontal section 221 when the axis of the inclined section 222 is inclined from the central axis of the second inner container 20, or the inclined section 222 may be understood as being perpendicular to the horizontal section 221 when the axis of the inclined section 222 extends in the vertical direction.
Based on the above, the water heater 100 of the present embodiment can control at least one of the first heating pipe 12 and the second heating pipe 22 to operate, that is, the water heater 100 can only control the first heating pipe 12 to operate, can only control the second heating pipe 22 to operate, and can also control both the first heating pipe 12 and the second heating pipe 22 to operate.
It will be appreciated that the water heater 100 has multiple heating modes, each heating mode corresponding to one operating condition of the first and second heating pipes 12, 22. Illustratively, the water heater 100 may have a lower bladder heating mode, an upper bladder heating mode, and a dual bladder heating mode.
When the heating mode of the lower liner is selected, the water heater 100 controls the first heating pipe 12 to work and the second heating pipe 22 not to work, at this time, the water heater 100 only heats the water in the first liner 10, and the first heating pipe 12 stops working until the temperature of the water led out from the water outlet reaches the preset temperature. Compared with the water heater 100 with only one inner container, the water heater 100 needs less water to be heated in the lower inner container heating mode, so the heating time is short, and less hot water is produced. As can be seen, the liner heating mode is suitable for a case where the amount of hot water used by the user is small (for example, the number of bathers is small).
FIG. 3 is a front view of a water heater according to an embodiment of the present application. Specifically, as shown in fig. 2 and 3, the water heater 100 may further include a controller 50, a first temperature measuring device 60, and a display device 90 installed on the housing 40, wherein the first temperature measuring device 60 is used for measuring the water temperature at the position where the first inner container 10 is communicated with the second inner container 20, the display device 90 is used for receiving a control input from a user and displaying the temperature or other displayable graphic or symbol information, and the controller 50 is electrically connected to the first temperature measuring device 60, the first heating pipe 12, the second heating pipe 22, and the display device 90.
In addition, the preset temperature is set by the user according to actual requirements, so that the temperature of the prepared water is moderate, and the preset temperature is not limited in the embodiment. Wherein, the preset temperature can be 50 ℃ to 75 ℃, for example, in summer, the user can design the preset temperature to be 60 ℃; in winter, the user may design the preset temperature to be 75 ℃. The preset temperature of 65 ℃ will be described below as an example.
FIG. 4 is a schematic view of a water heater with a heating mode of the bladder selected according to an embodiment of the present invention. One exemplary operating principle of the water heater 100 in the lower bladder heating mode is:
referring to fig. 4, a user selects a heating mode of the lower liner on the display device 90 and inputs a preset temperature, the controller 50 receives a command of the heating mode of the lower liner sent by the display device 90 to control the first heating pipe 12 to heat, when the temperature detected by the first temperature measuring device 60 reaches 65 ℃, the temperature of the water output by the water heater 100 can reach the user's requirement, and the controller 50 controls the first heating pipe 12 to stop working. At this time, the water temperature of the water in the first inner container 10 reaches 65 ℃, that is, the water in the first inner container 10 becomes hot water;
when the water heater is used, a user opens the water mixing valve 42, cold water enters the first inner container 10 under the action of the conveying pressure of a tap water pipe, and hot water of the first inner container 10 floats to the upper part of the first inner container 10 under the extrusion action and circulates to the second inner container 20 because the density of the hot water is smaller than that of the cold water, so that the water level of the second inner container 20 is raised to be above the water inlet end of the water outlet pipe 21, and meanwhile, water on the upper layer of the second inner container 20 enters the water outlet pipe 21 and flows out under the extrusion action; cold water is continuously input into the first inner container 10, hot water entering the second inner container 20 floats to the upper part of the second inner container 20 under the extrusion action and enters the water outlet pipe 21, and then the hot water flows to the water mixing valve 42 to be mixed with the cold water and then is sent to the water using equipment 44 through the main discharge pipe 43 to be discharged for users to use.
It should be noted that, based on the pressure balance principle, when the user uses the water heater 100, the cold water inlet amount and the hot water outlet amount of the water heater 100 are the same. Therefore, when the lower liner heating mode is performed, the water level of the second liner 20 is not lower than the water outlet height of the water outlet pipe 21, so that the water heater 100 is prevented from being dried; and after the use is finished, the water level of the second inner container 20 is restored to be flush with the water inlet end of the water outlet pipe 21.
When the upper liner heating mode is selected, the water heater 100 controls the second heating pipe 22 to work and the first heating pipe 12 not to work, at this time, the water heater 100 only heats the water in the second liner 20 until the temperature of the water led out from the water outlet reaches the preset temperature, and the second heating pipe 22 stops working. Compared with the water heater 100 with only one inner container, the water heater 100 of the embodiment has the advantages that the water volume to be heated is less when the inner container is heated, so the heating time is short, and the prepared hot water is less. Therefore, the upper bladder heating mode is also suitable for the situation that the water consumption of the hot water of the user is low (for example, the number of people taking a bath is small).
Specifically, as shown in fig. 2, the water heater 100 may further include a second temperature measuring device 70, the second temperature measuring device 70 is configured to measure the temperature of the water flowing out of the water gap, the second temperature measuring device 70 is electrically connected to the controller 50, and the controller 50 determines whether the temperature of the water guided by the water heater 100 reaches a preset temperature according to the temperature detected by the second temperature measuring device 70. Wherein, the second temperature measuring device 70 is arranged on the water outlet pipe 21.
An exemplary operating principle of the water heater 100 in the upper liner heating mode is as follows:
when the temperature measured by the second temperature measuring device 70 reaches 65 ℃, the temperature of the water output by the water heater 100 can reach the requirement of the user, and the controller 50 controls the second heating pipe 22 to stop working. At this time, the water temperature of the water in the second inner container 20 reaches 65 ℃, namely the water in the second inner container 20 is changed into hot water;
when the water heater is used, a user opens the water mixing valve 42, cold water enters the first inner container 10 under the conveying pressure action of the tap water pipe, water in the first inner container 10 enters the second inner container 20, so that the water level of the second inner container 20 is raised to be above the water inlet end of the water outlet pipe 21, and meanwhile, hot water in the second inner container 20 floats to the upper part of the second inner container 20 under the extrusion action; the water inlet pipe 11 continuously inputs cold water into the first inner container 10, the hot water in the second inner container 20 enters the water outlet pipe 21 under the extrusion effect, and then the hot water flows to the water mixing valve 42 to be mixed with the cold water and then is sent to the water using equipment 44 through the main discharge pipe 43 to be discharged for users to use.
When the double-liner heating mode is selected, the controller 50 controls the first heating pipe 12 to work, and when the temperature detected by the first temperature measuring device 60 reaches a preset temperature, the controller 50 controls the first heating pipe 12 to stop heating; then, the controller 50 controls the second heating pipe 22 to heat when the temperature detected by the first temperature measuring device 60 is reduced from the preset temperature to the set temperature.
In the heating mode, the water heater 100 heats the water in the first inner container 10 first, and then heats the water in the second inner container 20, so that more hot water is produced. Therefore, the double-liner heating mode is suitable for the situation that the hot water consumption of a user is large.
The set temperature is a critical temperature of the useful hot water flowing out of the water outlet, and can be set according to practical experience and requirements, for example, when a user feels that the water temperature is low and uncomfortable when using water with the temperature not higher than 40 ℃, the water with the temperature higher than 40 ℃ is the useful hot water, the water with the temperature not higher than 40 ℃ is the useless hot water, and the set temperature can be set to be 40 ℃. For another example, the set temperature may be 50 ℃ or 30 ℃. The following description will be made by taking an example in which the set temperature is 40 ℃.
In addition, the set temperature may be built in the program code of the controller 50, or may be set by the user according to the user's own needs, similar to the preset temperature. In conjunction with the above description, it can be understood that the preset temperature can be regarded as the highest water temperature that the user can accept, and the set temperature can be regarded as the lowest water temperature that the user can accept.
One exemplary operating principle of the water heater 100 in the dual bladder heating mode is:
the user selects the double-liner heating mode on the display device 90, the controller 50 receives a command selected from the double-liner heating mode sent by the display device 90 to control the first heating pipe 12 to heat, when the temperature detected by the first temperature measuring device 60 reaches 65 ℃, the temperature of the water output by the water heater 100 can reach the requirement of the user, and the controller 50 controls the first heating pipe 12 to stop working. At this time, the water temperature of the water in the first inner container 10 reaches 65 ℃, that is, the water in the first inner container 10 becomes hot water;
when the water heater is used, a user opens the water mixing valve 42, cold water enters the first inner container 10 under the action of the conveying pressure of a tap water pipe, and hot water of the first inner container 10 floats to the upper part of the first inner container 10 under the extrusion action and circulates to the second inner container 20 because the density of the hot water is smaller than that of the cold water, so that the water level of the second inner container 20 is raised to be above the water inlet end of the water outlet pipe 21, and meanwhile, water on the upper layer of the second inner container 20 enters the water outlet pipe 21 and flows out under the extrusion action; cold water is continuously input into the first inner container 10, hot water entering the second inner container 20 floats to the upper part of the second inner container 20 under the extrusion action and enters the water outlet pipe 21, and then the hot water flows to the water mixing valve 42 to be mixed with the cold water and then is sent to the water using equipment 44 through the main discharge pipe 43 to be discharged for the user to use;
as more and more cold water is injected into the first inner container 10, the temperature of the water in the first inner container 10 gradually decreases, and when the temperature detected by the first temperature measuring device 60 is 40 ℃, it indicates that all the useful hot water in the first inner container 10 has entered the second inner container 20, and the useless hot water in the first inner container 10 flows into the second inner container 20, and at the same time, the controller 50 controls the second heating pipe 22 to heat.
The temperature of the useless hot water at 40 ℃ is possibly higher than that of the cold water in the second inner container 20, and the useless hot water floats on the top of the second inner container 20; alternatively, the waste hot water may be located at the middle or bottom of the second inner container 20. Because the inclined section 222 of the second heating pipe 22 extends from the bottom of the second inner container 20 to the top of the second inner container 20, the inclined section 222 can directly heat the useless hot water at 40 ℃ regardless of whether the useless hot water is located at the top of the second inner container 20, so that the useless hot water at 40 ℃ is heated to 65 ℃, that is, the useless hot water becomes useful hot water, and the useful hot water can float to the top of the second inner container 20 and be discharged.
Through the above arrangement, in the double-liner heating mode of the water heater 100 according to the embodiment of the present application, when the water flowing from the first liner 10 to the second liner 20 is the useless hot water, the second heating pipe 22 can directly heat the useless hot water, so that the useless hot water can be quickly heated to the preset temperature to meet the use requirement of the user, and compared with the related art in which the second heating pipe 22 heats the cold water at the bottom of the second liner 20 to raise the water temperature to the preset temperature, the heating time is shortened, and the utilization rate of the useless hot water is improved.
Of course, in other heating modes, the water heater 100 may also control the two heating pipes 12, 22 to operate simultaneously, or control the second heating pipe 22 to operate first and then control the first heating pipe 12 to operate. It is worth mentioning that the sum of the power of the first heating pipe 12 and the second heating pipe 22 should be equal to the household power. For example, if the household electrical power is 5KW, the sum of the power of the first heating pipe 12 and the power of the second heating pipe 22 is 5KW, so that the power of the water heater 100 does not exceed the household electrical load.
Fig. 5 is a partial schematic view of another water heater provided in the embodiment of the present application. As shown in fig. 5, the inclined section 222 of the second heating pipe 22 is helical. Due to the design, the heat exchange area between the second heating pipe 22 and water is increased, and the heat exchange efficiency is increased. The rotation axis of the spiral inclined segment 222 may extend along a vertical direction, or may extend along a direction parallel to the axis of the second inner container 20, which is not limited in this embodiment.
Several communication modes of the first and second inner containers 10 and 20 will be described below.
In one example, the first and second inner containers 10 and 20 may be connected together by a communication pipe. Specifically, the water heater 100 further includes a communication pipe, the water inlet end of the communication pipe extends into the first inner container 10, the water level of the first inner container 10 is flush with the water inlet end of the communication pipe, and the water outlet end of the communication pipe extends into the second inner container 20. In this example, the first temperature measuring device 60 may be specifically disposed at the water inlet end of the communication pipe, and may also be disposed at the water outlet end of the communication pipe.
In another example, as shown in fig. 5, the first inner container 10 and the second inner container 20 are connected, a first communication port is provided at a connection point of the first inner container 10 and the second inner container 20, a second communication port is provided at a connection point of the second inner container 20 and the first inner container 10, and the first communication port and the second communication port are communicated with each other. It should be noted that the first inner container 10 of the present embodiment is always filled with water. Thus, compared to the previous example, the first liner 10 and the second liner 20 of the present embodiment are directly connected to each other, and the communication pipe is omitted.
The first inner container 10 and the second inner container 20 may be formed as an integral structure through an integral molding process, or the first inner container 10 and the second inner container 20 may be connected together by welding, which is not limited in this embodiment. In addition, in the present embodiment, the first temperature measuring device 60 may be disposed at the first communication port, or may be disposed at the second communication port.
Further, the second communication port and the water outlet may be provided at both ends of the second inner container 20. An exemplary water flow path of the water heater 100 is: the water flows into the bottom of the first inner container 10 from the water outlet end of the water inlet pipe 11, the water in the first inner container 10 flows into one end of the second inner container 20 through the first communicating port and the second communicating port, so that the water level of the second inner container 20 is raised, the water in one end of the second inner container 20 flows toward the other end of the second inner container 20, and then is discharged from the water outlet pipe 21.
Therefore, the second communication port and the water outlet are arranged at two ends of the second liner 20, so that water entering the second liner 20 needs to flow from the second communication port to the water outlet along the length direction of the second liner 20, and the water can flow through the second heating pipe 22 to be heated.
As is clear from the above description, the capacities of the first and second inner containers 10 and 20 may be the same or different. In a preferred implementation of the present embodiment, as shown in fig. 5, the capacity of the second liner 20 is smaller than the capacity of the first liner 10. In this example, when the upper tank heating mode is selected, the first heating pipe 12 is not operated, the second heating pipe 22 heats the water in the second tank 20, and the water storage amount in the second tank 20 is small because the capacity of the second tank 20 is small, so that the water in the second tank 20 can be rapidly heated, and the amount of hot water to be produced is small. It can be understood that the upper liner heating mode of the present embodiment is a quick heating mode, and the quick heating mode is not only suitable for the situation that the hot water consumption of the user is small (for example, the number of people having a bath is small, and people wash in the morning), but also suitable for the situation that the user is in urgent need of using water.
Illustratively, the capacity ratio of the first liner 10 to the second liner 20 may be 4: 1-10: 1. for example, when the capacity ratio of the first liner 10 to the second liner 20 is 10: in case of 1, the capacity of the first inner container 10 may be 30L, and the capacity of the second inner container 20 may be 3L. Thus, the difference between the capacities of the first inner container 10 and the second inner container 20 is large, the water storage capacity of the second inner container 20 is small, and the water in the second inner container 20 can be quickly used in the quick heating mode, so as to meet the demand of urgent water for users.
It should be further noted that, because the volume of the second inner container 20 is smaller, when the second communication port and the water outlet are disposed at two ends of the second inner container 20, the water entering the second inner container 20 can drive the water inside the second inner container 20 to flow when flowing from the second communication port to the water outlet, so as to accelerate the water circulation inside the second inner container 20 and prevent the "dead water zone" in the second inner container 20 from being stationary.
Optionally, a heat preservation layer can be further arranged between the first inner container 10 and the second inner container 20, so that the heat preservation layer can preserve heat of the joint of the first inner container 10 and the second inner container 20, and the excessive heat loss of hot water flowing through the first communicating port and the second communicating port is avoided.
Alternatively, the thickness of the first inner container 10 on the side close to the second inner container 20 is greater than that of the second inner container 20. So set up, because the thickness of first inner bag 10 one side that is close to second inner bag 20 is great, consequently, the hot water's that floats at first inner bag 10 top heat is difficult to give off, is favorable to keeping warm. Moreover, since the first inner container 10 has a small volume, even if the thickness of the first inner container 10 on the side close to the second inner container 20 is increased, the sum of the volumes of the first inner container 10 and the second inner container 20 does not exceed the volume of the inner container when only one inner container is provided, which is advantageous to avoid an increase in the installation space of the water heater 100.
In addition, the water heater 100 may also have a constant temperature heating mode. When the constant temperature heating mode is selected, the controller 50 controls the first heating pipe 12 to heat first, and controls the first heating pipe 12 to stop heating after the temperature detected by the first temperature measuring device 60 reaches the constant temperature threshold; the controller 50 controls the second heating pipe 22 to start and stop according to the temperature detected by the second temperature measuring device 70, so that the temperature of the water flowing out of the water outlet is consistent with the constant temperature threshold.
With the arrangement, in the constant-temperature heating mode, the outlet water temperature of the water heater 100 is constant, and the comfort level of a user is high. Moreover, the heating modes of the water heater 100 are increased, so that more choices are made by users, and different requirements of the users can be met.
Similar to the preset temperature, the constant temperature threshold can also be set by the user according to the actual demand, so that the temperature of the prepared water is moderate. Illustratively, the constant temperature threshold may be from 50 ℃ to 75 ℃. The constant temperature threshold is 60 ℃ as an example.
The controller 50 controls the second heating pipe 22 to start and stop according to the temperature detected by the second temperature measuring device 70, so that the temperature of the water guided out of the water heater 100 is constant at a constant temperature threshold, which specifically means: when the temperature detected by the second temperature measuring device 70 is higher than the constant temperature threshold, the controller 50 controls the second heating pipe 22 to stop heating; the controller 50 controls the second heating pipe 22 to heat when the temperature detected by the second temperature measuring device 70 is lower than the constant temperature threshold value.
One exemplary operating principle of the water heater 100 in the constant temperature heating mode is:
the user selects the constant temperature heating mode on the display device 90, the controller 50 receives the constant temperature heating mode selection instruction sent by the display device 90 to control the first heating pipe 12 to heat, and when the temperature measured by the first temperature measuring device 60 reaches 60 ℃, the controller 50 controls the first heating pipe 12 to stop heating. At the moment, the water temperature of the water in the first inner container reaches 60 ℃, namely the water in the first inner container 10 is changed into hot water;
when the water heater is used, a user opens the water mixing valve 42, cold water enters the first inner container 10 under the conveying pressure action of a tap water pipe, hot water in the first inner container 10 floats to the upper part of the first inner container 10 under the extrusion action and flows into the second inner container 20, so that the water level of the second inner container 20 is raised to be above the water inlet end of the water outlet pipe 21, and meanwhile, water on the upper layer of the second inner container 20 enters the water outlet pipe 21 and flows out under the extrusion action; cold water is continuously input into the first inner container 10, hot water at 60 ℃ floats on the upper part of the second inner container 20 under the extrusion action and enters the water outlet pipe 21, and then the hot water flows to the water mixing valve 42 to be mixed with the cold water and then is sent to the water using equipment 44 through the main discharge pipe 43 to be discharged for the user to use;
along with more and more cold water is injected into the first inner container 10, the water at 60 ℃ in the first inner container 10 is continuously discharged from the water outlet pipe until the temperature detected by the second temperature measuring device 70 is lower than the constant temperature threshold value, which indicates that the constant temperature water in the first inner container 10 is exhausted, and at this time, the controller 50 controls the second heating pipe 22 to work again, so that the water in the second inner container 20 is heated;
in the subsequent use process, when the temperature detected by the second temperature measuring device 70 is higher than the constant temperature threshold, the controller 50 controls the second heating pipe 22 to stop working. The water in the second inner container 20 is maintained at the constant temperature threshold value through the reciprocating circulation.
Fig. 6 is a sectional view taken along the line a-a in fig. 5. On the basis of the above embodiments, as shown in fig. 5 and fig. 6, the water heater 100 may further include a supporting plate 23, the supporting plate 23 is sleeved on the horizontal section 221 of the second heating pipe 22, and the supporting plate 23 is in contact with the inner wall of the second inner container 20. In addition, a plurality of water mixing holes 231 are further formed in the supporting plate 23, and the water mixing holes 231 are uniformly distributed around the axis of the second inner container 20.
As a result, on the one hand, the support plate 23 can support the horizontal section 221, so that the second heating pipe 22 can be reliably mounted in the second inner container 20; on the other hand, the water of the second inner container 20 flows toward the water outlet through the water mixing hole 231, and the hot water and the cold water of the second inner container 20 are mixed when flowing through the water mixing hole 231, so that the temperature of the water in the second inner container 20 is uniform, and the excess temperature of the water flowing out of the water outlet is favorably avoided. In addition, the supporting plate 23 will block the water flow, so that the flow speed of the water in the second inner container 20 is reduced, thereby facilitating the sufficient heat exchange between the second heating pipe 22 and the water.
The contact between the support plate 23 and the inner wall of the second liner 20 can be understood as that the whole support plate 23 is in contact with the inner wall of the second liner 20, and at this time, there is no gap between the support plate 23 and the second liner 20, so that water entering the second liner 20 from the second communication port must flow through the water mixing hole 231 when flowing to the water outlet; alternatively, it can be understood that a portion of the supporting plate 23 contacts the inner wall of the second inner container 20, and a gap exists between the supporting plate 23 and the second inner container 20, and a portion of water can flow from the gap to the water outlet.
Further, the supporting plate 23 may be provided in plurality, and the plurality of supporting plates 23 are spaced along the axis of the second inner container 20. By providing the plurality of support plates 23, the plurality of support plates 23 support the second heating pipe 22, the installation stability of the second heating pipe 22 is further improved, and the effect of uniform water temperature is improved.
Further, a magnesium rod 80 is provided in the first and second inner containers 10 and 20. The heating pipes 12 and 22 are made of copper or iron, and the activity of magnesium is greater than that of copper or iron, so that when the water heater 100 operates, mineral substances in water react with the magnesium rod 80 first, which is beneficial to reducing the risk of scaling of the heating pipes 12 and 22 caused by the reaction of the mineral substances in water with the heating pipes 12 and 22, further protecting the heating pipes 12 and 22, and prolonging the service lives of the heating pipes 12 and 22.
In fig. 5, the magnesium rod 80 in the first inner container 10 is fixedly arranged on the first inner container 10, the magnesium rod 80 in the second inner container 20 is fixedly arranged on the second inner container 20, the magnesium rods 80 in the first inner container 10 and the second inner container 20 both extend along a direction parallel to the axis of the first inner container 10, and one end of the magnesium rod 80 in the second inner container 20 is close to the inclined section 222.
Example two
Fig. 7 is a control schematic diagram of a water heater according to an embodiment of the present application.
Referring to fig. 4, 5 and 7, an embodiment of the present application further provides a control method of a water heater 100, which includes the following steps:
step one, responding to a signal selected in a double-liner heating mode, and controlling a first heating pipe 12 to heat;
step two, acquiring the temperature detected by the first temperature measuring device 60;
step three, when the temperature detected by the first temperature measuring device 60 reaches a preset temperature, controlling the first heating pipe 12 to stop heating;
and step four, controlling the second heating pipe 22 to heat when the temperature detected by the first temperature measuring device 60 is reduced to the set temperature from the preset temperature.
Wherein, the signal selected in the dual-bladder heating mode in the step one is triggered by the user. Specifically, when the matching degree between the user's requirement and the dual bladder heating mode is higher, the user may select the dual bladder heating mode through the display device 90, the display device 90 generates a dual bladder heating mode selection signal and sends the signal to the controller 50, and the controller 50 executes a corresponding operation according to the received signal.
The preset temperature is set by a user according to actual requirements, so that the temperature of the prepared water is moderate, and for example, the preset temperature can be 50-75 ℃. The set temperature is a critical temperature of the useful hot water flowing out of the water outlet, and can be set according to practical experience and requirements, for example, when a user feels that the water temperature is low and uncomfortable when using water with the temperature not higher than 40 ℃, the water with the temperature higher than 40 ℃ is the useful hot water, the water with the temperature not higher than 40 ℃ is the useless hot water, and the set temperature can be set to be 40 ℃.
In the double-liner heating mode, when the first temperature measuring device 60 detects that the temperature is reduced from the preset temperature to the set temperature, the water flowing from the first liner 10 to the second liner is useless hot water, if the temperature of the useless hot water is higher than that of the cold water in the second liner 20, the useless hot water floats on the top of the second liner 20, and the inclined section 222 extending from the bottom of the second liner 20 to the top of the second liner can directly heat the useless hot water, so that the useless hot water is heated to the preset temperature and is used by a user.
In addition, in the dual-bladder heating mode, the water heater 100 heats the water in the first bladder 10 first and then heats the water in the second bladder 20, and thus the water in the first bladder 10 and the water in the second bladder 20 can be heated. Therefore, more hot water is prepared, and the method is suitable for the situation that the water consumption of hot water of a user is large.
To sum up, the water heater 100 of the embodiment of the present application can directly heat the useless hot water, so that the useless hot water can be rapidly heated to the preset temperature from the set temperature, and then the discharged water of the water heater can rapidly meet the requirement of the user.
The embodiment of the present application further provides a control method of the water heater 100, which includes the following steps:
step one, responding to a signal selected in a constant temperature heating mode, and controlling a first heating pipe 12 to heat;
step two, acquiring the temperature detected by the first temperature measuring device 60;
step three, when the temperature detected by the first temperature measuring device 60 reaches a constant temperature threshold value, controlling the first heating pipe 12 to stop heating;
step four, acquiring the temperature detected by the second temperature measuring device 70;
and step five, controlling the second heating pipe 22 to start and stop according to the temperature detected by the second temperature measuring device 70, so that the temperature of the water flowing out of the second inner container 20 is consistent with the constant temperature threshold value.
Wherein, the signal selected in the constant temperature heating mode in the step one is triggered by the user. Specifically, when the matching degree between the user's demand and the constant temperature heating mode is higher, the user may select the constant temperature heating mode through the display device 90, the display device 90 generates a signal selected in the constant temperature heating mode and transmits the signal to the controller 50, and the controller 50 performs a corresponding operation according to the received signal.
In the fifth step, the second heating pipe 22 is controlled to be started or stopped according to the temperature detected by the second temperature measuring device 70, so that the temperature of the water flowing out of the second inner container 20 is consistent with the constant temperature threshold value: after the temperature detected by the first temperature measuring device 60 reaches the constant temperature threshold, when the temperature detected by the second temperature measuring device 70 is lower than the constant temperature threshold, the controller 50 controls the second heating pipe 22 to heat; and when the temperature detected by the second temperature measuring device 70 is higher than the constant temperature threshold, the second heating pipe 22 is controlled to stop heating, so that the water temperature of the second inner container 20 is maintained at the constant temperature threshold.
Similar to the preset temperature, the constant temperature threshold can also be set by the user according to the actual demand, so that the temperature of the prepared water is moderate. Illustratively, the constant temperature threshold may be from 50 ℃ to 75 ℃.
In the constant temperature heating mode, when the temperature detected by the first temperature measuring device 60 reaches a constant temperature threshold value, the controller 50 controls the first heating pipe 12 not to heat the water in the first inner container 10 any more, so that the constant temperature water enters the second inner container 20 and is discharged. When the temperature detected by the second temperature measuring device 70 is lower than the constant temperature threshold, the controller 50 controls the second heating pipe 22 to heat, so that the temperature of the water in the second inner container 20 is increased. In addition, in the subsequent use process of the water heater 100, when the temperature detected by the second temperature measuring device 70 is higher than the constant temperature threshold, the controller 50 controls the second heating pipe 22 to stop heating, that is, controls the second heating pipe 22 to start and stop, so that the water in the second liner 20 is maintained at the constant temperature threshold, so that the outlet water temperature is constant, and further, the outlet water temperature of the water heater 100 is favorably prevented from being too high or too low.
In summary, the water heater 100 of the embodiment of the present application has a constant outlet water temperature and is comfortable for users. Moreover, the heating modes of the water heater 100 are increased, so that more choices are made by users, and different requirements of the users can be met.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A water heater, comprising:
the first heating pipe is arranged in the first inner container;
the second inner container is arranged above the first inner container and communicated with the first inner container, a second heating pipe is arranged in the second inner container and comprises a horizontal section and an inclined section, the horizontal section is close to the bottom of the second inner container, and the tail end of the inclined section is close to the top of the second inner container.
2. The water heater according to claim 1, wherein the inclined section is helical; and/or the presence of a gas in the gas,
the first inner container is provided with a first communicating opening, the second inner container is provided with a second communicating opening, and the first communicating opening is communicated with the second communicating opening.
3. The water heater according to claim 2, wherein a water outlet is arranged on the second inner container, and the second communication port and the water outlet are arranged at two ends of the second inner container.
4. The water heater of claim 1, wherein the volume of the second bladder is less than the volume of the first bladder.
5. The water heater according to claim 4, wherein the capacity ratio of the first inner container to the second inner container is 4: 1-10: 1.
6. the water heater of claim 1, wherein an insulating layer is disposed between the first inner container and the second inner container; or the thickness of one side of the first inner container, which is close to the second inner container, is larger than that of the second inner container.
7. The water heater of claim 1, further comprising a support plate sleeved on the horizontal section, the support plate contacting an inner wall of the second inner container; a plurality of water mixing holes are formed in the supporting plate and are uniformly distributed around the axis of the second inner container; and/or the presence of a gas in the gas,
and magnesium rods are arranged in the first inner container and the second inner container.
8. The water heater of claim 7, wherein the support plate is provided in plurality, and the plurality of support plates are spaced apart along an axis of the second inner container.
9. The water heater according to any one of claims 1-8, further comprising a first temperature measuring device, a second temperature measuring device and a controller, wherein the first temperature measuring device is used for measuring the water temperature at the communication position of the first inner container and the second inner container, the second temperature measuring device is used for measuring the temperature of the water flowing out of the second inner container, and the controller is electrically connected with the first heating pipe, the second heating pipe, the first temperature measuring device and the second temperature measuring device;
the controller is used for controlling the first heating pipe to heat after the constant temperature heating mode is selected, controlling the first heating pipe to stop heating after the temperature detected by the first temperature measuring device reaches a constant temperature threshold value, and controlling the second heating pipe to start and stop according to the temperature detected by the second temperature measuring device, so that the temperature of water flowing out of the second inner container is consistent with the constant temperature threshold value.
10. A method of controlling a water heater, comprising:
responding to the signal selected by the constant temperature heating mode, and controlling the first heating pipe to heat;
acquiring the temperature detected by the first temperature measuring device;
when the temperature detected by the first temperature measuring device reaches a constant temperature threshold value, controlling the first heating pipe to stop heating;
acquiring the temperature detected by the second temperature measuring device;
and controlling the second heating pipe to start and stop according to the temperature detected by the second temperature measuring device so as to enable the temperature of the water flowing out of the second inner container to be consistent with the constant temperature threshold value.
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| CN115875845A (en) * | 2022-06-14 | 2023-03-31 | 武汉海尔热水器有限公司 | Electric water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115875845A (en) * | 2022-06-14 | 2023-03-31 | 武汉海尔热水器有限公司 | Electric water heater |
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| CN112762610B (en) | 2023-12-15 |
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