CN114294825A - Energy storage water heater and using method thereof - Google Patents
Energy storage water heater and using method thereof Download PDFInfo
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- CN114294825A CN114294825A CN202111650698.8A CN202111650698A CN114294825A CN 114294825 A CN114294825 A CN 114294825A CN 202111650698 A CN202111650698 A CN 202111650698A CN 114294825 A CN114294825 A CN 114294825A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 175
- 238000004146 energy storage Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 9
- 239000012782 phase change material Substances 0.000 claims description 23
- 238000005485 electric heating Methods 0.000 claims description 16
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 3
- 239000012071 phase Substances 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
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Abstract
The invention discloses an energy storage water heater and a use method thereof, wherein the energy storage water heater comprises an energy storage tank, a first heat exchange pipe, a first valve and a second heat exchange pipe, the second heat exchange pipe is arranged on the first heat exchange pipe, as the two ends of the second heat exchange pipe are respectively positioned at the upstream and the downstream of the first valve, the second heat exchange pipe forms a bypass pipeline, when the temperature in the energy storage tank is higher, most of cold water exchanges heat with the energy storage tank only through the first heat exchange pipe by opening the first valve, and the heat in the energy storage tank is slowly reduced; when the temperature in the energy storage box is lower, the first valve is closed, so that all cold water is subjected to heat exchange with the energy storage box through the first heat exchange tube firstly, and then is subjected to heat exchange with the energy storage box through the second heat exchange tube, the cold water can be heated more fully, the heat in the energy storage box is utilized more effectively, and the outlet water temperature can better meet the use requirement.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to an energy storage water heater and a using method thereof.
Background
The phase-change energy storage water heater is characterized in that the phase-change material is filled in the energy storage shell, the phase-change material has high enthalpy value and high energy storage density, so that a large amount of heat can be stored, and the heat exchanger is immersed in the phase-change material to exchange heat with the phase-change material, so that the heat stored in the phase-change material can be replaced. In the prior art, when the phase change energy storage water heater is used, cold water enters the heat exchange tube, and because the contact area between the heat exchange tube and the phase change material is fixed and unchanged, the temperature of water flowing out of the heat exchange tube lacks of an adjusting means, and the condition that the outlet water temperature cannot meet the use requirement can occur when the temperature of the phase change material is lower.
Disclosure of Invention
The invention aims to provide an energy storage water heater and a using method thereof, which can more effectively utilize the heat in an energy storage tank and enable the outlet water temperature to better meet the using requirement.
The technical problem is solved by the following technical scheme:
an energy storing water heater comprising:
an energy storage tank;
the first heat exchange tube comprises a water inlet section, a heat exchange section and a water outlet section, the heat exchange section is arranged inside the energy storage box, the water inlet section and the water outlet section are both arranged outside the energy storage box, and the water inlet section and the water outlet section are respectively connected with two ends of the heat exchange section;
the first valve is arranged on the water outlet section;
the second heat exchange tube is arranged in the energy storage box in a partially-arranged mode, two ends of the second heat exchange tube are connected with the water outlet section, and two ends of the second heat exchange tube are located at the upstream and the downstream of the first valve respectively.
The use method of the energy storage water heater comprises the following steps: setting a switching temperature, and when the temperature in the energy storage box is greater than or equal to the switching temperature, opening a first valve to ensure that cold water mainly exchanges heat with the energy storage box through a first heat exchange pipe; when the temperature in the energy storage box is lower than the switching temperature, the first valve is closed, so that cold water is subjected to heat exchange with the energy storage box through the first heat exchange tube firstly, and then is subjected to heat exchange with the energy storage box through the second heat exchange tube.
Compared with the background technology, the energy storage water heater of the invention has the following beneficial effects:
the energy storage water heater is characterized in that the first heat exchange pipe is provided with a first valve, the two ends of the first valve are respectively arranged at the upstream and downstream of the first valve, the first valve is arranged at the downstream of the first valve, and the first valve is opened to ensure that the first valve is opened; when the temperature in the energy storage box is lower, the first valve is closed, so that all cold water is subjected to heat exchange with the energy storage box through the first heat exchange tube firstly, and then is subjected to heat exchange with the energy storage box through the second heat exchange tube, the cold water can be heated more fully, the heat in the energy storage box is utilized more effectively, and the outlet water temperature can better meet the use requirement.
In one embodiment, the energy storage water heater further comprises a flow sensor and a second valve, and the flow sensor and the second valve are both arranged on the water inlet section.
In one embodiment, the energy storage water heater further comprises a buffer tank, a water replenishing pipe and a third valve, one end of the water replenishing pipe is connected with the water inlet section and is located between the flow sensor and the second valve, the flow sensor is located at the upstream of the second valve, the other end of the water replenishing pipe is connected with the buffer tank, the third valve is arranged on the water replenishing pipe, and one end, far away from the heat exchange section, of the water outlet section is connected with the buffer tank.
In one embodiment, the buffer tank comprises a tank body, a water outlet pipe and a first electric heating pipe, the first electric heating pipe is arranged inside the tank body, the water outlet pipe is partially inserted into the tank body, the tank body is provided with a first water inlet and a second water inlet, the water outlet section is communicated with the inside of the tank body through the first water inlet, and the water replenishing pipe is communicated with the inside of the tank body through the second water inlet.
In one embodiment, one end of the water outlet pipe in the tank body is positioned above the first water inlet and the second water inlet.
In one embodiment, the energy storage water heater further comprises a water outlet electricity-proof wall, and the water outlet electricity-proof wall is arranged on the water outlet pipe and is positioned outside the tank body.
In one embodiment, the energy storage water heater further comprises a water inlet electricity-proof wall, and the water inlet electricity-proof wall is arranged on the water inlet section.
In one embodiment, the energy storage box comprises a shell, an insulating layer, an inner container, a second electric heating pipe and a phase-change material, wherein the insulating layer is arranged between the shell and the inner container, and the phase-change material and the second electric heating pipe are arranged in the inner container.
In one embodiment, the energy storage box further comprises a temperature sensor, the temperature sensor is arranged in the inner container, the first valve is an electromagnetic valve, and the first valve is connected with the temperature sensor.
Drawings
Fig. 1 is a schematic structural diagram of an energy storage water heater according to an embodiment of the invention.
In the figure:
1. an energy storage tank; 11. a housing; 12. a heat-insulating layer; 13. an inner container; 14. a second electric heating tube; 2. a first heat exchange tube; 21. a water inlet section; 22. a heat exchange section; 23. a water outlet section; 3. a first valve; 4. a second heat exchange tube; 5. a flow sensor; 6. a second valve; 7. a buffer tank; 71. a tank body; 72. a water outlet pipe; 73. a first electric heating tube; 81. a water replenishing pipe; 82. a third valve; 91. the water outlet electricity-proof wall; 92. the water inlet electricity-proof wall; 100. a first water inlet; 200. a second water inlet.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1, the energy storage water heater of an embodiment includes an energy storage tank 1, a first heat exchange tube 2, a first valve 3, and a second heat exchange tube 4, where the first heat exchange tube 2 includes a water inlet section 21, a heat exchange section 22, and a water outlet section 23, the heat exchange section 22 is disposed inside the energy storage tank 1, the water inlet section 21 and the water outlet section 23 are both disposed outside the energy storage tank 1, the water inlet section 21 and the water outlet section 23 are respectively connected to two ends of the heat exchange section 22, the first valve 3 is disposed on the water outlet section 23, the second heat exchange tube 4 is partially disposed inside the energy storage tank 1, two ends of the second heat exchange tube 4 are both connected to the water outlet section 23, and two ends of the second heat exchange tube 4 are respectively located at an upstream and a downstream of the first valve 3.
The use method of the energy storage water heater of the embodiment is as follows: firstly, setting a switching temperature, wherein the switching temperature is selected according to actual needs, and when the temperature in the energy storage tank 1 is greater than or equal to the switching temperature, opening a first valve 3 to ensure that cold water mainly exchanges heat with the energy storage tank 1 through a first heat exchange tube 2; when the temperature in the energy storage box 1 is lower than the switching temperature, the first valve 3 is closed, so that cold water firstly exchanges heat with the energy storage box 1 through the first heat exchange tube 2, and then exchanges heat with the energy storage box 1 through the second heat exchange tube 4.
The energy storage water heater of the embodiment is characterized in that the first heat exchange tube 2 is provided with the second heat exchange tube 4, two ends of the second heat exchange tube 4 are respectively positioned at the upstream and downstream of the first valve 3, so that the second heat exchange tube 4 forms a bypass pipeline, when the temperature in the energy storage tank 1 is higher, most of cold water is subjected to heat exchange with the energy storage tank 1 only through the first heat exchange tube 2 by opening the first valve 3, and the heat in the energy storage tank 1 is slowly reduced; when the internal temperature of the energy storage box 1 is lower, the first valve 3 is closed, so that all cold water is subjected to heat exchange with the energy storage box 1 through the first heat exchange tube 2, and then is subjected to heat exchange with the energy storage box 1 through the second heat exchange tube 4, the cold water can be heated more sufficiently, the heat in the energy storage box 1 is utilized more effectively, and the outlet water temperature can better meet the use requirement.
Further, the energy storage water heater also comprises a flow sensor 5 and a second valve 6, and the flow sensor 5 and the second valve 6 are both arranged on the water inlet section 21. By providing the flow sensor 5 and the second valve 6 on the water inlet section 21, it can be monitored whether hot water is currently being used and whether cold water is fed into the heat exchange section 22 of the first heat exchange pipe 2.
Furthermore, the energy storage water heater further comprises a buffer tank 7, a water supplementing pipe 81 and a third valve 82, one end of the water supplementing pipe 81 is connected with the water inlet section 21 and is located between the flow sensor 5 and the second valve 6, the flow sensor 5 is located at the upstream of the second valve 6, the other end of the water supplementing pipe 81 is connected with the buffer tank 7, the third valve 82 is arranged on the water supplementing pipe 81, and one end, far away from the heat exchange section 22, of the water outlet section 23 is connected with the buffer tank 7. A certain amount of hot water can be stored in the buffer tank 7, so that the flow of the outlet water is more stable, and by arranging the water replenishing pipe 81 and the third valve 82, on one hand, the water temperature in the buffer tank 7 can be regulated, and on the other hand, the water can be replenished to the buffer tank 7.
Specifically, the buffer tank 7 comprises a tank body 71, a water outlet pipe 72 and a first electric heating pipe 73, wherein the first electric heating pipe 73 is arranged inside the tank body 71, the water outlet pipe 72 is partially inserted into the tank body 71, the water outlet section 23 and the water replenishing pipe 81 are both connected with the tank body 71, and a first water inlet 100 and a second water inlet 200 are formed in the tank body 71. When the temperature in the energy storage tank 1 is low, the temperature of the water flowing into the buffer tank 7 from the water outlet section 23 may be lower than the use requirement, and at this time, the water in the buffer tank 7 is heated by the first electric heating tube 73, so that the temperature of the water can meet the use requirement. The tank 71 may be made of a heat insulating material to reduce heat loss.
Further, the water outlet pipe 72 is vertically arranged, and one end of the water outlet pipe 72 in the tank 71 is located above the first water inlet 100 and the second water inlet 200. The first water inlet 100 and the second water inlet 200 are arranged at lower positions, so that the water in the buffer tank 7 can flow out from the water outlet pipe 72 after being heated, and the stability of the temperature of the outlet water is ensured.
The water outlet pipe 72 is also provided with an outlet electricity-proof wall 91, and the outlet electricity-proof wall 91 is positioned outside the tank 71. When water in the tank 71 is electrified, the water outlet electricity-proof wall 91 increases the resistance of the water path by prolonging the length of the water path, thereby protecting the human body.
Furthermore, a water inlet electricity-proof wall 92 is arranged on the water inlet section 21, so that the safety of the energy storage water heater can be further improved.
The energy storage box 1 comprises a shell 11, an insulating layer 12, an inner container 13, a second electric heating tube 14 and a phase change material (not shown in the figure), wherein the insulating layer 12 is arranged between the shell 11 and the inner container 13, and the phase change material and the second electric heating tube 14 are arranged in the inner container 13. Phase change materials have the ability to change their physical state over a range of temperatures. Taking the solid-liquid phase change example, when the material is heated to the melting temperature, the phase change material generates the phase change from the solid state to the liquid state, and the phase change material absorbs and stores a large amount of latent heat in the melting process; when the phase change material is cooled, the stored heat is dissipated to the environment within a certain temperature range, and reverse phase change from liquid to solid is carried out. In both phase change processes, the stored or released energy is called latent heat of phase change. The phase change material in this embodiment is a solid-liquid phase material, the second electric heating tube 14 is used to heat the solid phase change material to a liquid phase, and the liquid phase change material can perform sufficient heat exchange with the first heat exchange tube 2 and the second heat exchange tube 4, so as to rapidly raise the water temperature. The insulation layer 12 is selected based on the properties of the phase change material and needs to be able to withstand the highest temperatures that the phase change material can reach.
Further, the energy storage tank 1 further includes a temperature sensor (not shown in the figure), and the temperature sensor is disposed in the inner container 13. The temperature sensor can monitor the real-time temperature of the phase-change material, and provides a basis for the operation of the energy storage water heater.
Furthermore, the first valve 3 is an electromagnetic valve, and the first valve 3 is connected to a temperature sensor. When the temperature sensor monitors that the real-time temperature of the phase change material is lower than a specific value, the first valve 3 is automatically closed, so that all cold water flows out after passing through the second heat exchange tube 4; when the temperature sensor monitors that the real-time temperature of the phase-change material is higher, the first valve 3 is automatically opened, most of cold water flows out only after passing through the first heat exchange tube 2, and automatic control is achieved.
In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The detailed description of the embodiments above only expresses several embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An energy storage water heater, comprising:
an energy storage tank (1);
the first heat exchange tube (2) comprises a water inlet section (21), a heat exchange section (22) and a water outlet section (23), the heat exchange section (22) is arranged inside the energy storage box (1), the water inlet section (21) and the water outlet section (23) are both arranged outside the energy storage box (1), and the water inlet section (21) and the water outlet section (23) are respectively connected with two ends of the heat exchange section (22);
a first valve (3), the first valve (3) being arranged on the water outlet section (23);
the energy storage box (1) is provided with a water outlet section (23), the energy storage box (1) is provided with a first heat exchange pipe (4), the first heat exchange pipe (4) is partially arranged in the energy storage box (1), two ends of the first heat exchange pipe (4) are connected with the water outlet section (23), and two ends of the first heat exchange pipe (4) are respectively arranged at the upstream and the downstream of the first valve (3).
2. The energy-storing water heater of claim 1, further comprising a flow sensor (5) and a second valve (6), wherein the flow sensor (5) and the second valve (6) are both disposed on the water inlet section (21).
3. The energy storage water heater of claim 2, further comprising a buffer tank (7), a water supplementing pipe (81) and a third valve (82), wherein one end of the water supplementing pipe (81) is connected with the water inlet section (21) and is located between the flow sensor (5) and the second valve (6), the flow sensor (5) is located at the upstream of the second valve (6), the other end of the water supplementing pipe (81) is connected with the buffer tank (7), the third valve (82) is arranged on the water supplementing pipe (81), and one end of the water outlet section (23) far away from the heat exchange section (22) is connected with the buffer tank (7).
4. The energy storage water heater of claim 3, characterized in that the buffer tank (7) comprises a tank body (71), a water outlet pipe (72) and a first electric heating pipe (73), the first electric heating pipe (73) is arranged inside the tank body (71), the water outlet pipe (72) is partially inserted into the tank body (71), a first water inlet (100) and a second water inlet (200) are arranged on the tank body (71), the water outlet section (23) is communicated with the inside of the tank body (71) through the first water inlet (100), and the water replenishing pipe (81) is communicated with the inside of the tank body (71) through the second water inlet (200).
5. The energy-storing water heater of claim 4, characterized in that the end of the outlet pipe (72) inside the tank (71) is above the first inlet (100) and the second inlet (200).
6. The energy storage water heater of claim 4, further comprising an outlet electricity-proof wall (91), wherein the outlet electricity-proof wall (91) is arranged on the outlet pipe (72) and is positioned outside the tank body (71).
7. The energy storage water heater of claim 2, further comprising a water inlet electricity-proof wall (92), wherein the water inlet electricity-proof wall (92) is arranged on the water inlet section (21).
8. The energy storage water heater of claim 1, characterized in that the energy storage tank (1) comprises a shell (11), a heat insulation layer (12), a liner (13), a second electric heating tube (14) and a phase change material, wherein the heat insulation layer (12) is arranged between the shell (11) and the liner (13), and the phase change material and the second electric heating tube (14) are arranged in the liner (13).
9. The energy-storing water heater according to claim 8, characterized in that the energy-storing tank (1) further comprises a temperature sensor, the temperature sensor is arranged in the inner container (13), the first valve (3) is an electromagnetic valve, and the first valve (3) is connected with the temperature sensor.
10. A method of use of an energy storing water heater according to any one of claims 1 to 9, characterized in that a switching temperature is set, and when the temperature inside the energy storing tank (1) is equal to or higher than the switching temperature, the first valve (3) is opened to cause cold water to exchange heat with the energy storing tank (1) mainly through the first heat exchanging pipe (2); when the temperature in the energy storage box (1) is lower than the switching temperature, the first valve (3) is closed, so that cold water firstly passes through the first heat exchange tube (2) to exchange heat with the energy storage box (1), and then passes through the second heat exchange tube (4) to exchange heat with the energy storage box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111650698.8A CN114294825A (en) | 2021-12-30 | 2021-12-30 | Energy storage water heater and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111650698.8A CN114294825A (en) | 2021-12-30 | 2021-12-30 | Energy storage water heater and using method thereof |
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| CN114294825A true CN114294825A (en) | 2022-04-08 |
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| CN202111650698.8A Pending CN114294825A (en) | 2021-12-30 | 2021-12-30 | Energy storage water heater and using method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010028791A1 (en) * | 1997-01-30 | 2001-10-11 | Salyer Ival O. | Water heating unit with integral thermal energy storage |
| CN106196604A (en) * | 2016-07-28 | 2016-12-07 | 芜湖美的厨卫电器制造有限公司 | Phase-change thermal storage type water heater and control method thereof |
| CN209371201U (en) * | 2018-12-26 | 2019-09-10 | 云南中宣液态金属科技有限公司 | A kind of solar boiler with liquid metal as a heat transfer medium |
| CN213119486U (en) * | 2020-08-13 | 2021-05-04 | 佛山市顺德区基诺德电器制造有限公司 | Energy-storage instant electric water heater |
| CN113432300A (en) * | 2021-07-28 | 2021-09-24 | 广东万和新电气股份有限公司 | Phase-change heat storage type gas water heater and working method thereof |
| CN216744932U (en) * | 2021-12-30 | 2022-06-14 | 广东万和电气有限公司 | Energy storage water heater |
-
2021
- 2021-12-30 CN CN202111650698.8A patent/CN114294825A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010028791A1 (en) * | 1997-01-30 | 2001-10-11 | Salyer Ival O. | Water heating unit with integral thermal energy storage |
| CN106196604A (en) * | 2016-07-28 | 2016-12-07 | 芜湖美的厨卫电器制造有限公司 | Phase-change thermal storage type water heater and control method thereof |
| CN209371201U (en) * | 2018-12-26 | 2019-09-10 | 云南中宣液态金属科技有限公司 | A kind of solar boiler with liquid metal as a heat transfer medium |
| CN213119486U (en) * | 2020-08-13 | 2021-05-04 | 佛山市顺德区基诺德电器制造有限公司 | Energy-storage instant electric water heater |
| CN113432300A (en) * | 2021-07-28 | 2021-09-24 | 广东万和新电气股份有限公司 | Phase-change heat storage type gas water heater and working method thereof |
| CN216744932U (en) * | 2021-12-30 | 2022-06-14 | 广东万和电气有限公司 | Energy storage water heater |
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