CN110848969A - Electric water heater with hot water circulation function and control method thereof - Google Patents
Electric water heater with hot water circulation function and control method thereof Download PDFInfo
- Publication number
- CN110848969A CN110848969A CN201911102967.XA CN201911102967A CN110848969A CN 110848969 A CN110848969 A CN 110848969A CN 201911102967 A CN201911102967 A CN 201911102967A CN 110848969 A CN110848969 A CN 110848969A
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- Prior art keywords
- water
- electric
- temperature
- inner container
- inlet pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 306
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005485 electric heating Methods 0.000 claims abstract description 19
- 239000008236 heating water Substances 0.000 claims abstract description 4
- 238000003287 bathing Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003303 reheating 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
-
- 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
Abstract
The invention discloses an electric water heater with a hot water circulation function and a control method thereof, wherein the control method comprises the following steps: the inner container is used for storing water; the electric heating pipe is arranged in the inner container and used for heating water in the inner container; the water outlet pipe is used for communicating the water outlet of the inner container with a water consumption point; the water inlet pipe is connected with the water inlet of the inner container; the water return pipe is used for communicating the water using point with the water inlet pipe; the water pump is arranged on the water return pipe; the flow sensor is arranged on the water inlet pipe and used for detecting the water on-off state of the water inlet pipe; the electric control assembly is respectively and electrically connected with the electric heating tube, the water pump and the flow sensor, and can improve the bathing comfort of a user.
Description
Technical Field
The invention relates to the technical field of electric water heaters, in particular to an electric water heater with a hot water circulation function and a control method.
Background
In the related art, the installation adaptability of the electric water heater is higher, and particularly in the third, fourth and fifth-level market, the installation and use amount of the electric water heater is far higher than that of a gas water heater. However, when the existing electric water heater is used, a section of cold water is required to be put into a user before hot water is used each time, and particularly in winter with low temperature, tap water is wasted, time is delayed, and bathing experience is seriously affected.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the related art to some extent, and therefore an object of the present invention is to provide an electric water heater with hot water circulation function, which can improve the bathing comfort of users.
The above purpose is realized by the following technical scheme:
an electric water heater with hot water circulation function, comprising:
the inner container is used for storing water;
the electric heating pipe is arranged in the inner container and used for heating water in the inner container;
and the water outlet pipe is used for communicating the water outlet of the inner container with a water consumption point.
The water inlet pipe is connected with the water inlet of the inner container;
the water return pipe is used for communicating the water using point with the water inlet pipe;
the water pump is arranged on the water return pipe;
the flow sensor is arranged on the water inlet pipe and used for detecting the water on-off state of the water inlet pipe;
and the electric control assembly is respectively and electrically connected with the electric heating pipe, the water pump and the flow sensor.
In some embodiments, the water temperature sensor further comprises a first temperature sensor arranged in the inner container and used for detecting the water temperature in the inner container, and the first temperature sensor is electrically connected with the electronic control component.
In some embodiments, the water circulating system further comprises a second temperature sensor arranged on the water return pipe and used for detecting the temperature of water in the water return pipe, and the second temperature sensor is electrically connected with the electronic control component.
In some embodiments, the water-saving device further comprises a one-way valve which is arranged on the water return pipe and is configured to be communicated in a one-way mode from the water using point to the water inlet pipe.
In some embodiments, the water inlet pipe is connected with the water return pipe through a tee joint, and the flow sensor is arranged between the tee joint and the water inlet end of the water inlet pipe.
Another objective of the present invention is to provide a control method for an electric water heater with hot water circulation function, which can improve the bathing comfort of the user.
The above purpose is realized by the following technical scheme:
the control method of the electric water heater with the hot water circulation function is applied to the electric water heater, and comprises the following steps:
receiving a switching signal of a hot water circulation mode;
judging the water on-off state of the water inlet pipe;
if the water inlet pipe is in a water-cut-off state, detecting the water temperature in the water return pipe;
and determining whether to start the water pump according to the water temperature in the water return pipe.
In some embodiments, the step of determining the water on/off state of the water inlet pipe comprises the following steps:
and if the water inlet pipe is in a water-passing state, the water pump is closed.
In some embodiments, the step of determining whether to activate the water pump according to the temperature of the water inside the return pipe includes:
if the temperature of water in the water return pipe is lower than a first preset temperature, starting a water pump;
and if the water temperature in the water return pipe is higher than a second preset temperature, closing the water pump, wherein the second preset temperature is higher than the first preset temperature.
In some embodiments, the method further comprises the steps of:
detecting the water temperature in the inner container;
if the water temperature in the inner container is lower than a third preset temperature, the electric heating pipe is started;
if the temperature of the water in the inner container is higher than the third preset temperature, the electric heating pipe is closed.
In some embodiments, the first preset temperature ranges from 35 ℃ to 40 ℃;
the second preset temperature is in the range of 40 ℃ to 80 ℃;
the third preset temperature ranges from 30 ℃ to 80 ℃.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the electric water heater and the control method have the advantages of simple and reasonable structure, convenience in installation and use and contribution to improving the bathing comfort of 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 schematic diagram of the connection between an electric water heater and a water consumption point according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method according to 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 and 3, the present embodiment provides an electric water heater with a hot water circulation function, including:
the inner container 1 is used for storing water;
the electric heating tube 2 is arranged in the inner container 1 and used for heating water in the inner container 1;
and the water outlet pipe 3 is used for communicating the water outlet of the liner 1 with the water consumption points 4, preferably, the water consumption points 4 comprise a plurality of water consumption points, and the water outlet pipe 3 is used for sequentially communicating the water outlet of the liner 1 with the water consumption points 4.
The water inlet pipe 5 is connected with the water inlet of the inner container 1 and is used for introducing external tap water into the inner container 1;
the water return pipe 6 is used for communicating the water consumption point 4 with the water inlet pipe 3 and is used for introducing cold water in the water consumption point 4 into the inner container 1 for reheating;
a water pump 7 provided on the return pipe 6 for starting operation of hot water circulation;
the flow sensor 8 is arranged on the water inlet pipe 5 and used for detecting the water supply and drainage state of the water inlet pipe 5, specifically, when the flow sensor 8 detects a water flow signal, the water inlet pipe 5 is judged to be in the water supply state, and when the flow sensor 8 does not detect the water flow signal, the water inlet pipe 5 is judged to be in the water drainage state;
the electric control assembly 13 is respectively electrically connected with the electric heating tube 2, the water pump 7 and the flow sensor 8, and the electric control assembly 13 is used for controlling the electric heating tube 2 and/or the water pump 7 to work according to detection signals fed back by the flow sensor 8 and other detection components so as to realize hot water circulation.
The electric water heater of the embodiment has simple and reasonable structure and convenient installation and use, and is beneficial to improving the bathing comfort of users.
In this embodiment, the water heater further comprises a first temperature sensor 9, which is arranged in the inner container 1 and is used for detecting the water temperature in the inner container 1, wherein the first temperature sensor 9 is electrically connected with the electronic control component 13;
if the water temperature in the inner container 1 is lower than a third preset temperature T3, the electric heating tube 2 is started;
if the water temperature in the inner container 1 is higher than the third preset temperature T3, the electric heating tube 2 is turned off, so that the water temperature in the inner container 1 is kept stable, and the use experience of a user is improved.
Preferably, the water circulation system further comprises a second temperature sensor 10, which is arranged on the water return pipe 6 and is used for detecting the temperature of water in the water return pipe 6, the second temperature sensor 10 is electrically connected with the electronic control component 13, and in a state that the hot water circulation mode needs to be started, if the temperature of water in the water return pipe 6 is lower than a first preset temperature T1, the water pump 7 is started;
if the water temperature in the water return pipe 6 is higher than the second preset temperature T2, the water pump 7 is turned off, wherein the second preset temperature T2 is higher than the first preset temperature T1, so that the water temperature in the water return pipe 6 and the water using point 4 is kept stable, and the use experience of a user is improved.
In particular, the water heater also comprises a one-way valve 11 which is arranged on the water return pipe 6 and is formed to be in one-way conduction from the water using point 4 to the water inlet pipe 5, and the one-way valve is used for controlling the water flow direction of hot water circulation, preventing cold water in the water inlet pipe 5 from flowing back to the inside of the water return pipe 6, and being beneficial to ensuring the use stability and reliability of the electric water heater.
In this embodiment, still including three way connection 12, connect between wet return 6 and inlet tube 5, flow sensor 8 sets up between three way connection 12 and inlet tube 5's the end of intaking to this is favorable to accurate detection inlet tube 5's the inflow, provides reliable data basis for the thermostatic control of automatically controlled subassembly 13, hot water circulation control.
In particular, a circulation starting switch is arranged on the electric water heater, and the circulation starting switch is electrically connected with the electric control component 13 and used for switching the electric water heater between a hot water circulation mode and a non-hot water circulation mode.
The electric water heater with the hot water circulation function of the embodiment is provided with the water return pipe 6, and the water return pipe 6 is provided with the water pump 7, so that the hot water circulation function can be easily realized.
In addition, the electric water heater is provided with a circulation starting switch, so that a user can conveniently and freely switch between a hot water circulation function and a non-hot water circulation function.
In addition, a flow sensor 8 is designed on a tap water inlet pipe 5 of the electric water heater, and a temperature sensor is designed on a water return pipe 6, so that automatic start-stop operation of the water pump can be easily realized, the user does not need to worry about the operation, and the use experience of the user is greatly improved.
In this embodiment, the electric control component 13 is configured to start the water pump 7 to perform a hot water circulation operation when the circulation start switch is switched to the hot water circulation mode, and when the water inlet pipe 5 is in a water cut-off state and the temperature of the water in the water return pipe 6 is lower than a first preset temperature value T1; when the water temperature in the water return pipe 6 reaches a second preset temperature value T2, the power supply of the water pump 7 is cut off;
the electric control component 13 is also used for disconnecting the power supply of the water pump 7 when the circulation starting switch is switched to a hot water circulation mode and the water inlet pipe 5 is in a water-passing state;
the electric control component 13 is also used for disconnecting the power supply of the water pump 7 when the circulation starting switch is switched to the non-hot water circulation mode;
the electric control component 13 is also used for switching on the power supply of the electric heating tube 2 when the water temperature in the inner container 1 is lower than a third preset temperature value T3 in a hot water circulation mode or a non-hot water circulation mode; when the temperature of the water in the inner container 1 reaches a third preset temperature value T3, the power supply of the electric heating tube 2 is cut off.
Example two: as shown in fig. 1, fig. 2 and fig. 3, the present embodiment provides a control method of an electric water heater with a hot water circulation function, which is applied to the electric water heater described in the first embodiment, and the control method includes:
receiving a switching signal of a hot water circulation mode, in particular receiving a switching signal from a circulation starting switch;
judging the water on-off state of the water inlet pipe 5, specifically, detecting the water on-off state of the water inlet pipe 5 through the flow sensor 8, judging that the water inlet pipe 5 is in the water on-off state when the flow sensor 8 detects a water flow signal, and judging that the water inlet pipe 5 is in the water off state when the flow sensor 8 does not detect the water flow signal;
if the water inlet pipe 5 is in a water-cut-off state, detecting the water temperature in the water return pipe 6;
and determining whether to start the water pump 7 according to the water temperature in the water return pipe 6.
The control method of the electric water heater of the embodiment has reasonable and ingenious design and is beneficial to improving the bathing comfort of users.
Further, the step of judging the water on-off state of the water inlet pipe 5 comprises the following steps:
if the water inlet pipe 5 is in a water-passing state, the water pump 7 is closed.
Further, the step of determining whether to activate the water pump 7 according to the temperature of the water in the return pipe 6 includes:
if the water temperature in the water return pipe 6 is lower than a first preset temperature T1, starting the water pump 7;
if the water temperature in the water return pipe 6 is higher than a second preset temperature T2, the water pump 7 is turned off, wherein the second preset temperature T2 is higher than the first preset temperature T1, specifically, the first preset temperature ranges from 35 ℃ to 40 ℃, and the second preset temperature ranges from 40 ℃ to 80 ℃, so that the water temperature in the water return pipe 6 and the water using point 4 is kept stable, and the use experience of a user is improved.
Preferably, the method further comprises the following steps:
detecting the water temperature in the inner container 1;
if the water temperature in the inner container 1 is lower than a third preset temperature T3, the electric heating tube 2 is started;
if the water temperature in the inner container 1 is higher than the third preset temperature T3, the electric heating tube 2 is turned off, specifically, the third preset temperature ranges from 30 ℃ to 80 ℃, so that the water temperature in the inner container 1 is kept stable, and the use experience of a user is improved.
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 (10)
1. An electric water heater with hot water circulation function, comprising:
the inner container (1) is used for storing water;
the electric heating tube (2) is arranged in the inner container (1) and is used for heating water in the inner container (1);
the water outlet pipe (3) is used for communicating the water outlet of the inner container (1) with the water consumption point (4);
the water inlet pipe (5) is connected with the water inlet of the inner container (1);
the water return pipe (6) is used for communicating the water consumption point (4) with the water inlet pipe (3);
the water pump (7) is arranged on the water return pipe (6);
the flow sensor (8) is arranged on the water inlet pipe (5) and is used for detecting the water on-off state of the water inlet pipe (5);
the electric control component (13) is respectively and electrically connected with the electric heating tube (2), the water pump (7) and the flow sensor (8).
2. The electric water heater with the hot water circulation function according to claim 1, further comprising a first temperature sensor (9) disposed in the inner container (1) for detecting the temperature of water in the inner container (1), wherein the first temperature sensor (9) is electrically connected to the electric control component (13).
3. The electric water heater with the hot water circulation function according to claim 2, further comprising a second temperature sensor (10) disposed on the water return pipe (6) for detecting the temperature of the water in the water return pipe (6), wherein the second temperature sensor (10) is electrically connected to the electric control component (13).
4. The electric water heater with hot water circulation function according to claim 1, further comprising a check valve (11) disposed on the water return pipe (6) and configured to conduct in one direction from the water consumption point (4) to the water inlet pipe (5).
5. The electric water heater with the hot water circulation function according to any one of claims 1 to 4, further comprising a three-way joint (12) connected between the water return pipe (6) and the water inlet pipe (5), wherein the flow sensor (8) is arranged between the three-way joint (12) and the water inlet end of the water inlet pipe (5).
6. A control method of an electric water heater with a hot water circulation function, which is applied to the electric water heater of any one of claims 1 to 5, the control method comprising:
receiving a switching signal of a hot water circulation mode;
judging the water on-off state of the water inlet pipe (5);
if the water inlet pipe (5) is in a water-cut-off state, detecting the temperature of water in the water return pipe (6);
and determining whether to start the water pump (7) according to the water temperature in the water return pipe (6).
7. The control method of the electric water heater with the hot water circulation function according to claim 6, wherein the step of judging the water on-off state of the water inlet pipe (5) comprises the following steps:
if the water inlet pipe (5) is in a water passing state, the water pump (7) is closed.
8. The control method of an electric water heater with hot water circulation function according to claim 7, wherein the step of determining whether to activate the water pump (7) according to the temperature of the water in the water return pipe (6) comprises:
if the temperature of the water in the water return pipe (6) is lower than a first preset temperature, starting a water pump (7);
if the temperature of the water in the water return pipe (6) is higher than a second preset temperature, the water pump (7) is turned off, wherein the second preset temperature is higher than the first preset temperature.
9. The control method of the electric water heater with the hot water circulation function according to claim 8, further comprising the steps of:
detecting the water temperature in the inner container (1);
if the temperature of the water in the inner container (1) is lower than a third preset temperature, the electric heating tube (2) is started;
if the temperature of the water in the inner container (1) is higher than a third preset temperature, the electric heating tube (2) is closed.
10. The control method of the electric water heater with the hot water circulation function according to claim 9, wherein the first preset temperature is in a range of 35 ℃ to 40 ℃;
the second preset temperature is in the range of 40 ℃ to 80 ℃;
the third preset temperature ranges from 30 ℃ to 80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911102967.XA CN110848969A (en) | 2019-11-12 | 2019-11-12 | Electric water heater with hot water circulation function and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911102967.XA CN110848969A (en) | 2019-11-12 | 2019-11-12 | Electric water heater with hot water circulation function and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110848969A true CN110848969A (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911102967.XA Pending CN110848969A (en) | 2019-11-12 | 2019-11-12 | Electric water heater with hot water circulation function and control method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110856A (en) * | 2014-07-16 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Water heater system |
| CN106969495A (en) * | 2017-03-06 | 2017-07-21 | 熊雄 | Intelligent constant-temperature water-saving water heater and control method |
| WO2017124888A1 (en) * | 2016-01-22 | 2017-07-27 | 江苏帅因特光电科技开发有限公司 | Smart solar-powered water heater |
| CN107702347A (en) * | 2017-11-17 | 2018-02-16 | 长沙翼希网络科技有限公司 | Intelligent thermoregulating electric heater |
| CN211575519U (en) * | 2019-11-12 | 2020-09-25 | 华帝股份有限公司 | Electric water heater with hot water circulation function |
-
2019
- 2019-11-12 CN CN201911102967.XA patent/CN110848969A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110856A (en) * | 2014-07-16 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Water heater system |
| WO2017124888A1 (en) * | 2016-01-22 | 2017-07-27 | 江苏帅因特光电科技开发有限公司 | Smart solar-powered water heater |
| CN106969495A (en) * | 2017-03-06 | 2017-07-21 | 熊雄 | Intelligent constant-temperature water-saving water heater and control method |
| CN107702347A (en) * | 2017-11-17 | 2018-02-16 | 长沙翼希网络科技有限公司 | Intelligent thermoregulating electric heater |
| CN211575519U (en) * | 2019-11-12 | 2020-09-25 | 华帝股份有限公司 | Electric water heater with hot water circulation function |
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