CN111912096A - Control method of electric water heater - Google Patents
Control method of electric water heater Download PDFInfo
- Publication number
- CN111912096A CN111912096A CN202010631954.8A CN202010631954A CN111912096A CN 111912096 A CN111912096 A CN 111912096A CN 202010631954 A CN202010631954 A CN 202010631954A CN 111912096 A CN111912096 A CN 111912096A
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- water
- electric heating
- electric
- inlet pipe
- pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005485 electric heating Methods 0.000 claims abstract description 82
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000003287 bathing Methods 0.000 abstract description 15
- 239000002699 waste material Substances 0.000 abstract description 9
- 239000002918 waste heat Substances 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000008236 heating water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
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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 discloses a control method of an electric water heater, which comprises an upper liner, a lower liner and a water inlet pipe, wherein the upper liner is communicated with the lower liner, the water inlet pipe is arranged on the upper liner or the lower liner, a first electric heating pipe and a second electric heating pipe are arranged in the upper liner, a third electric heating pipe is arranged in the lower liner, and the control method comprises the following steps: s1, judging the heating mode selected by the user, if the user selects the single-bladder heating mode, entering the step S2, if the user selects the double-bladder heating mode, entering the step S3; s2, judging the water on-off state of the water inlet pipe, and controlling whether the first electric heating pipe and the second electric heating pipe work or not according to the water on-off state of the water inlet pipe; s3, judging the water on-off state of the water inlet pipe, and controlling whether the second electric heating pipe and the third electric heating pipe work or not according to the water on-off state of the water inlet pipe; the waste of the waste heat water after bathing can be reduced, and the requirement of a user on continuous bathing water can be met.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a control method of an electric water heater.
Background
The electric water heater in the market at present mainly uses a water storage type electric water heater, namely, an inner container with a large volume is arranged in the electric water heater and used for storing hot water. When the electric water heater is used, the required water temperature is set firstly, then the electric heating tube is started to heat, and when the water temperature reaches the preset water temperature, the temperature control device of the electric water heater controls the power supply of the electric heating tube to be cut off, so that the heating is stopped. According to the hot water layering principle, the electric heating pipe needs to be arranged at the bottom of the inner container for heating, after heating is completed, the whole inner container of the electric water heater is hot water, if the number of people for bathing is small or the bathing water is less, waste of excessive hot water can be caused, and the energy waste condition is caused.
In addition, according to the heating principle of the electric water heater, when the water temperature is heated to a preset water temperature, the electric water heater enters a heat preservation state, and when the water temperature is reduced by a certain temperature, the temperature control device of the electric water heater is restarted for heating, and the operation is repeated according to the cycle. Because the temperature control device of the electric water heater is mostly arranged in the middle of the liner, and because of hot water stratification, the upper part of the electric water heater is hot water, and the lower part of the electric water heater is cold water, when continuous water use is met, especially when the temperature of cold inlet water is low, after the temperature control device senses that the temperature is reduced by a certain value, the heating time is seriously lagged, and a great deal of cold water is also fed into the bottom of the liner, so that the quantity of hot water continuously output by the electric water heater is less, and the bathing comfort degree is seriously influenced. In addition, considering that the electric heating tube is positioned at the bottom of the inner container to heat the water in the inner container, the temperature rise in unit time is small due to large water amount, and the condition that a large hot water increment is needed in the continuous bathing process cannot be met.
Disclosure of Invention
The invention aims to solve at least one of the problems in the prior related art to a certain extent, and therefore the invention provides a control method of an electric water heater, which can reduce the waste of excessive waste heat water after bathing and can meet the requirement of a user on continuous bathing water.
According to the control method of the electric water heater, the control method is realized through the following technical scheme:
a control method of an electric water heater comprises an upper liner, a lower liner and a water inlet pipe, wherein the upper liner is communicated with the lower liner, the water inlet pipe is arranged on the upper liner or the lower liner, a first electric heating pipe and a second electric heating pipe are arranged in the upper liner, a third electric heating pipe is arranged in the lower liner, and the control method comprises the following steps:
s1, judging the heating mode selected by the user, if the user selects the single-bladder heating mode, entering the step S2, if the user selects the double-bladder heating mode, entering the step S3;
s2, judging the water on-off state of the water inlet pipe, and controlling whether the first electric heating pipe and the second electric heating pipe work or not according to the water on-off state of the water inlet pipe;
s3, judging the water on-off state of the water inlet pipe, and controlling whether the second electric heating pipe and the third electric heating pipe work or not according to the water on-off state of the water inlet pipe.
In some embodiments, the sum of the power of the first electric heating tube and the power of the second electric heating tube is equal to the rated power of the electric water heater, and the sum of the power of the second electric heating tube and the power of the third electric heating tube is equal to the rated power of the electric water heater.
In some embodiments, step S2 includes the following steps:
s201, if the water inlet pipe is in a water cut-off state, detecting the water temperature of the upper inner container;
s202, if the water temperature of the upper liner is less than or equal to a preset temperature value T1When the temperature drop value delta T is detected, the power supply of the first electric heating tube and the power supply of the second electric heating tube are connected, and if the water temperature of the upper liner is larger than or equal to a preset temperature value T1Then the power supply of the first electric heating tube and the second electric heating tube is cut off.
In some embodiments, step S2 includes the following steps:
s203, if the water inlet pipe is in a water-through state, the power supply of the first electric heating pipe and the second electric heating pipe is connected.
In some embodiments, step S3 includes the following steps:
s301, detecting the water temperature of the upper inner container if the water inlet pipe is in a water cut-off state;
s302, if the water temperature of the upper liner is less than or equal to a preset temperature value T1When the temperature drop value delta T is reached, the power supply of the second electric heating tube and the power supply of the third electric heating tube are connected, and if the water temperature of the upper liner is larger than or equal to the preset temperature value T1Then the power supply of the second electric heating tube and the third electric heating tube is cut off.
In some embodiments, step S3 includes the following steps:
s303, if the water inlet pipe is in a water-through state, the power supply of the first electric heating pipe and the second electric heating pipe is connected.
In some embodiments, the preset temperature value T1In the range of 30 ℃ to 80 ℃ and the temperature drop value Δ T in the range of 5 ℃ to 8 ℃.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the control method of the electric water heater can reduce the waste of the waste heat water after bathing and can meet the requirement of continuous bathing water for users.
Drawings
FIG. 1 is a schematic structural diagram of an electric water heater according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating the step S2 according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating step S3 in accordance with an embodiment of the present invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
The first embodiment is as follows: as shown in fig. 1, 2, 3 and 4, the present embodiment provides a control method of an electric water heater, which includes an upper liner 1, a lower liner 2 and a water inlet pipe 3, wherein the upper liner 1 and the lower liner 2 are communicated through a liner connecting passage 7, the upper liner 1 and the lower liner 2 form a liner of the electric water heater for storing water, the water inlet pipe 3 is disposed on the upper liner 1 or the lower liner 2, a first electric heating pipe 4 and a second electric heating pipe 5 are disposed in the upper liner 1 for heating water in the upper liner 1, and a third electric heating pipe 6 is disposed in the lower liner 2 for heating water in the lower liner 2;
in this embodiment, the sum of the powers of the first electric heating tube 4 and the second electric heating tube 5 is equal to the rated power of the electric water heater, and the sum of the powers of the second electric heating tube 5 and the third electric heating tube 6 is equal to the rated power of the electric water heater;
a first temperature sensor 8 is arranged in the upper inner container 1 and used for detecting the water temperature in the upper inner container 1;
a second temperature sensor 9 is arranged in the lower inner container 2 and used for detecting the water temperature in the lower inner container 2;
the water inlet pipe 3 is provided with a flow sensor 10 for detecting the water on-off state on the water inlet pipe 3;
the electric control component 11 is respectively connected with the first electric heating tube 4, the second electric heating tube 5, the third electric heating tube 6, the first temperature sensor 8, the second temperature sensor 9 and the flow sensor 10 through lines;
the heating mode change-over switch is electrically connected with the electric control component 11 and is used for switching the electric water heater between a single-liner heating mode and a double-liner heating mode;
the control method comprises the following steps:
s1, judging the heating mode selected by the user, if the user selects the single-bladder heating mode, entering the step S2, if the user selects the double-bladder heating mode, entering the step S3;
s2, judging the water on-off state of the water inlet pipe 3, specifically detecting the water on-off state of the water inlet pipe 3 by the flow sensor 10, and controlling whether the first electric heating pipe 4 and the second electric heating pipe 5 work or not according to the water on-off state of the water inlet pipe 3;
s3, judging the water on-off state of the water inlet pipe 3, specifically detecting the water on-off state of the water inlet pipe 3 by the flow sensor 10, and controlling whether the second electric heating pipe 5 and the third electric heating pipe 6 work or not according to the water on-off state of the water inlet pipe 3.
The control method of the electric water heater can reduce the waste of the waste hot water after bathing and can meet the requirement of a user on continuous bathing water.
Further, as shown in fig. 3, step S2 includes the following steps:
s201, if the water inlet pipe 3 is in a water cut-off state, detecting the water temperature of the upper inner container, specifically detecting the water temperature in the upper inner container 1 by the first temperature sensor 8;
s202, if the water temperature of the upper liner is less than or equal to a preset temperature value T1When the temperature drop value delta T is reached, the power supply of the first electric heating tube 4 and the second electric heating tube 5 is connected, and if the water temperature of the upper liner is larger than or equal to the preset temperature value T1The first electric heating tube 4 and the second electric heating tube 5 are powered off.
Further, step S2 includes the steps of:
s203, if the water inlet pipe 3 is in the water-passing state, the power supply of the first electric heating pipe 4 and the second electric heating pipe 5 is connected.
Preferably, as shown in fig. 4, the step S3 includes the steps of:
s301, if the water inlet pipe 3 is in a water cut-off state, detecting the water temperature of the upper inner container, and specifically detecting the water temperature in the upper inner container 1 by the first temperature sensor 8;
s302, if the water temperature of the upper liner is less than or equal to a preset temperature value T1When the temperature drop value delta T is reached, the power supply of the second electric heating tube 5 and the third electric heating tube 6 is connected, and if the water temperature of the upper liner is larger than or equal to the preset temperature value T1The power supply of the second electric heating tube 5 and the third electric heating tube 6 is cut off.
More preferably, step S3 includes the steps of:
s303, if the water inlet pipe 3 is in a water-passing state, the power supply of the first electric heating pipe 4 and the second electric heating pipe 5 is connected.
In this embodiment, the preset temperature value T1In the range of 30 ℃ to 80 ℃ and the temperature drop value Δ T in the range of 5 ℃ to 8 ℃.
The electric water heater of this embodiment has two inner bags of upper liner 1 and lower inner bag 2, all is provided with the electrothermal tube in every inner bag, and the electrothermal tube is controlled by electrical control component 11, and every electrothermal tube all can heat alone.
The electric water heater is provided with a heating mode change-over switch, so that a user can conveniently and freely switch between a single-container quick heating mode and a double-container heating mode. Because the single-liner quick heating mode only heats the water in the upper liner, the water quantity is reduced by half, and the heating waiting time can be reduced by half under the condition of unchanged rated power; meanwhile, the total amount of hot water is reduced by half, so that the water supply device is suitable for water demand of one person for bathing or short bathing time, and energy waste caused by waste of waste heat water can be avoided.
In addition, the water inlet pipe 3 of the electric water heater is provided with the flow sensor 10, the first electric heating pipe 4 and the second electric heating pipe 5 in the upper liner 1 can be started immediately according to the bathing water signal for heating, the problem of delayed heating starting time can be solved, the heating speed can be increased, namely the heating temperature rise in unit time is increased, and therefore the total amount of hot water is greatly increased when water is continuously used.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a control method of electric water heater, its characterized in that, includes upper liner (1), lower inner bag (2) and inlet tube (3), wherein upper liner (1) and lower inner bag (2) intercommunication, and inlet tube (3) set up on upper liner (1) or lower inner bag (2), are provided with first electrothermal tube (4) and second electrothermal tube (5) in upper liner (1), are provided with third electrothermal tube (6) in lower inner bag (2), and control method includes following step:
s1, judging the heating mode selected by the user, if the user selects the single-bladder heating mode, entering the step S2, if the user selects the double-bladder heating mode, entering the step S3;
s2, judging the water on-off state of the water inlet pipe, and controlling whether the first electric heating pipe (4) and the second electric heating pipe (5) work or not according to the water on-off state of the water inlet pipe;
s3, judging the water on-off state of the water inlet pipe, and controlling whether the second electric heating pipe (5) and the third electric heating pipe (6) work or not according to the water on-off state of the water inlet pipe.
2. The control method of an electric water heater according to claim 1, wherein the sum of the power of the first electric heating tube (4) and the power of the second electric heating tube (5) is equal to the rated power of the electric water heater, and the sum of the power of the second electric heating tube (5) and the power of the third electric heating tube (6) is equal to the rated power of the electric water heater.
3. The control method of the electric water heater according to claim 2, wherein the step S2 includes the steps of:
s201, if the water inlet pipe (3) is in a water cut-off state, detecting the water temperature of the upper inner container;
s202, if the water temperature of the upper liner is less than or equal to a preset temperature value T1When the temperature drop value delta T is detected, the power supply of the first electric heating tube (4) and the second electric heating tube (5) is connected, and if the water temperature of the upper liner is larger than or equal to the preset temperature value T1The power supply of the first electric heating tube (4) and the second electric heating tube (5) is cut off.
4. The control method of the electric water heater according to claim 3, wherein the step S2 includes the steps of:
s203, if the water inlet pipe (3) is in a water passing state, the power supply of the first electric heating pipe (4) and the second electric heating pipe (5) is connected.
5. The control method of the electric water heater according to claim 2, wherein the step S3 includes the steps of:
s301, detecting the water temperature of the upper inner container if the water inlet pipe (3) is in a water cut-off state;
s302, if the water temperature of the upper liner is less than or equal to a preset temperature value T1When the temperature drop value delta T is reached, the power supply of the second electric heating tube (5) and the third electric heating tube (6) is connected, and if the water temperature of the upper liner is more than or equal to the preset temperature value T1The power supply of the second electric heating tube (5) and the third electric heating tube (6) is cut off.
6. The control method of the electric water heater according to claim 5, wherein the step S3 includes the steps of:
s303, if the water inlet pipe (3) is in a water passing state, the power supply of the first electric heating pipe (4) and the second electric heating pipe (5) is connected.
7. The control method of electric water heater according to claim 3, 4, 5 or 6, wherein the preset temperature value T is1In the range of 30 ℃ to 80 ℃ and the temperature drop value Δ T in the range of 5 ℃ to 8 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010631954.8A CN111912096A (en) | 2020-07-02 | 2020-07-02 | Control method of electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010631954.8A CN111912096A (en) | 2020-07-02 | 2020-07-02 | Control method of electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111912096A true CN111912096A (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010631954.8A Pending CN111912096A (en) | 2020-07-02 | 2020-07-02 | Control method of electric water heater |
Country Status (1)
| Country | Link |
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| CN (1) | CN111912096A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623591A (en) * | 2022-03-25 | 2022-06-14 | 阿里斯顿热能产品(中国)有限公司 | Electric water heater and automatic capacity increasing control method thereof |
| CN115200230A (en) * | 2022-06-27 | 2022-10-18 | 华帝股份有限公司 | Control method of electric water heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476769A (en) * | 2008-01-03 | 2009-07-08 | 黄明佳 | Electric water heater |
| CN102374648A (en) * | 2010-08-20 | 2012-03-14 | 王焱 | Electric water heater |
| CN103363654A (en) * | 2013-07-11 | 2013-10-23 | 广东万和电气有限公司 | Double-inner-tank electric water heater |
| CN203595264U (en) * | 2013-12-05 | 2014-05-14 | 邱家斌 | Circulating heating type electric water heater |
| CN105157215A (en) * | 2015-10-13 | 2015-12-16 | 山东力诺瑞特新能源有限公司 | Ultrathin energy-saving electric water heater capable of quickly outputting hot water |
-
2020
- 2020-07-02 CN CN202010631954.8A patent/CN111912096A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476769A (en) * | 2008-01-03 | 2009-07-08 | 黄明佳 | Electric water heater |
| CN102374648A (en) * | 2010-08-20 | 2012-03-14 | 王焱 | Electric water heater |
| CN103363654A (en) * | 2013-07-11 | 2013-10-23 | 广东万和电气有限公司 | Double-inner-tank electric water heater |
| CN203595264U (en) * | 2013-12-05 | 2014-05-14 | 邱家斌 | Circulating heating type electric water heater |
| CN105157215A (en) * | 2015-10-13 | 2015-12-16 | 山东力诺瑞特新能源有限公司 | Ultrathin energy-saving electric water heater capable of quickly outputting hot water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623591A (en) * | 2022-03-25 | 2022-06-14 | 阿里斯顿热能产品(中国)有限公司 | Electric water heater and automatic capacity increasing control method thereof |
| CN115200230A (en) * | 2022-06-27 | 2022-10-18 | 华帝股份有限公司 | Control method of electric water heater |
| CN115200230B (en) * | 2022-06-27 | 2023-10-10 | 华帝股份有限公司 | Control method of electric water heater |
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Application publication date: 20201110 |
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