Phase change energy storage water heater

Abstract

The present invention discloses a phase-change energy storage water heater, which belongs to the field of water heaters. A phase-change energy storage water heater comprises a heat exchange box and two groups of energy storage boxes symmetrically fixedly connected in the heat exchange box, and further comprises: a heat insulation plate fixedly connected in the heat exchange box, the heat insulation plate being located between the two groups of energy storage boxes; a heating unit arranged on the outer wall of the heat exchange box, the heating unit being respectively connected to both sides of the heat insulation plate; a monitoring guide unit arranged on the energy storage box, the monitoring guide unit being connected to the heating unit via a pipeline, wherein a driving mechanism is arranged between the heating unit and the monitoring guide unit, and the heating unit can drive the monitoring guide unit to rotate along a predetermined trajectory through the driving mechanism; a diversion and cleaning mechanism arranged on the inner wall of the heat exchange box and connected to the driving mechanism; the present invention can overcome the problems of low energy storage efficiency of phase change materials, low heat source utilization, low thermal energy utilization of phase change materials, and heat source heat waste.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a phase-change energy storage water heater. Background Art

[0002] A water heater is a device that uses various physical principles to increase the temperature of cold water into hot water within a certain period of time. Among them, the phase change energy storage water heater is an advanced multi-source heating water heater. It utilizes the characteristics of phase change energy storage materials and has significant advantages in heat storage and heat release efficiency, size, installation flexibility, energy efficiency ratio, energy saving and environmental protection, service life, safety and reliability. In addition to the standard air energy heat source, it can also be connected to heat sources such as solar collectors and electric water boilers to realize multi-source combination application, which can achieve heat source recovery and functional requirements in various scenarios.

[0003] At present, when a phase change energy storage water heater is used, it is necessary to first heat the phase change material with a heat source to cause the phase change material to undergo a phase change, thereby storing heat energy. During heating, the phase change material on the side close to the heat source undergoes a phase change first. In the absence of external interference, the heat source needs to gradually diffuse to the internal phase change material, which makes the energy storage efficiency of the phase change material low. In addition, the heat source on the side close to the phase change material cools down too quickly, and it is easy for the heat source to be discharged from the water heater before it is fully utilized, which not only affects the release of heat energy of the phase change material, but also easily causes heat waste. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of low energy storage efficiency of phase change materials, low heat source utilization, low thermal energy utilization rate of phase change materials, and heat source heat waste in the prior art, and to propose a phase change energy storage water heater.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A phase-change energy storage water heater comprises a heat exchange box and two groups of energy storage boxes symmetrically fixedly connected in the heat exchange box, and further comprises: a heat insulation plate fixedly connected in the heat exchange box, the heat insulation plate being located between the two groups of energy storage boxes; a heating unit arranged on the outer wall of the heat exchange box, the heating unit being respectively connected to both sides of the heat insulation plate; a monitoring guide unit arranged on the energy storage box, the monitoring guide unit and the heating unit being connected via a pipeline, wherein a driving mechanism is provided between the heating unit and the monitoring guide unit, and the heating unit can drive the monitoring guide unit to rotate along a predetermined trajectory through the driving mechanism; a diversion cleaning mechanism arranged on the inner wall of the heat exchange box and connected to the driving mechanism, for cleaning the outer wall of the energy storage box.

[0007] In order to facilitate the storage of thermal energy in different phase change materials, preferably, the heat supply unit includes a heat energy pipe connected to the outer wall of the heat exchange box, and the heat energy pipe includes a group of inlet ends and two groups of outlet ends. The two groups of outlet ends are respectively located at the bottom of the heat exchange box and above the insulation board. A first pneumatic valve is provided on the side of the heat energy pipe close to the bottom of the heat exchange box, and a second pneumatic valve is provided on the side of the heat energy pipe close to the top of the insulation board.

[0008] To facilitate monitoring of the energy storage of the phase change material, the monitoring guide unit further includes a sealed telescopic shaft symmetrically connected to the insulation board, the end of the sealed telescopic shaft extending into the interior of the energy storage box, the end of the sealed telescopic shaft fixedly connected to a sealing plate, a spring provided between the sealing plate and the top of the energy storage box, wherein the sealed telescopic shaft below is connected to the first pneumatic valve and the second pneumatic valve via an air slip ring and a pipeline, the sealing plate is tightly fitted to the inner wall of the energy storage box, the spring is rotationally connected to the top of the energy storage box, and the spring is sleeved on the outside of the sealed telescopic shaft.

[0009] In order to facilitate the adjustment of the position of the phase change material, it further includes a rotating rod fixedly connected to the side of the sealing plate away from the sealing telescopic axis, and multiple groups of guide plates are fixedly connected to the rotating rod. The distance between the guide plate and the inner wall of the energy storage box is greater than the size of the phase change material, and the guide plate is provided with multiple groups of through holes.

[0010] In order to improve the utilization rate of heat energy during transmission, the driving mechanism further includes a first rotating shaft rotatably connected to the outer wall of the energy storage box near the outlet end below the heat energy pipe, the end of the first rotating shaft is fixedly connected to a first driving member, the side of the heat insulation plate near the first rotating shaft is rotatably connected to a first connecting shaft, a first bevel gear set is provided between the first connecting shaft and the first rotating shaft, and the first driving member matches the outlet end below the heat energy pipe.

[0011] Furthermore, it also includes a second rotating shaft rotatably connected to the outer wall of the energy storage box near the outlet end above the heat energy pipe, the end of the second rotating shaft is fixedly connected to a second driving member, and the top of the heat exchange box near the second rotating shaft is rotatably connected to a second connecting shaft. A second bevel gear set is provided between the second connecting shaft and the second rotating shaft, and the second driving member matches the outlet end above the heat energy pipe.

[0012] In order to facilitate the driving of the guide plate to rotate and reduce energy loss, it further includes a mounting shaft rotatably connected to the side of the heat insulation plate close to the second rotating shaft, the end of the mounting shaft is fixedly connected to a driven bevel gear meshing with the second bevel gear set, the mounting shaft and the first connecting shaft are fixedly connected to the side close to the sealed telescopic shaft with a driving wheel, and a belt is connected between the driving wheel and the sealed telescopic shaft in the corresponding direction.

[0013] In order to facilitate the cleaning of the surface of the energy storage box and reduce the resistance to heat transfer, the diversion and cleaning mechanism further includes two pairs of limiting rings fixedly connected to the inner wall of the heat exchange box close to the energy storage box side, and a rotating ring is slidably connected inside the limiting ring. A plurality of groups of guide plates are fixedly connected between the two groups of rotating rings close to one side of one group of energy storage boxes, and a cleaning brush is fixedly connected to the inner side of the guide plate. The cleaning brush is in contact with the outer wall of the energy storage box, wherein the first connecting shaft and the second connecting shaft are fixedly connected to a linkage wheel that is in close contact with the rotating ring.

[0014] In order to facilitate the heating of cold water, preferably, a hot water exchange pipe is further provided on the heat exchange box, the inlet end of the hot water exchange pipe is close to the lower part of the lower energy storage box, the outlet end of the hot water exchange pipe is close to the upper part of the upper energy storage box, and the hot water exchange pipe is spirally wound on the outer wall of the energy storage box.

[0015] In order to ensure the stability of heat energy transmission, preferably, it also includes two groups of overflow pipes connected to the outer wall of the heat exchange box, one group of overflow pipes is close to the bottom of the insulation board, and the other group of overflow pipes is close to the upper part of the upper energy storage box.

[0016] Compared with the prior art, the present invention provides a phase-change energy storage water heater with the following beneficial effects:

[0017] 1. The phase change energy storage water heater can store heat energy in different phase change materials according to actual conditions through the heating unit and the monitoring and guidance unit, so as to avoid the situation where a large amount of unused heat is still stored in the phase change material when the water temperature does not reach the set temperature, thereby improving the heat utilization rate of the phase change material.

[0018] 2. This phase-change energy storage water heater, through the driving mechanism, drives the monitoring guide unit to rotate when heating the phase-change material, thereby conveying the phase-change material in the energy storage box, so as to guide the phase-change material that has not undergone phase change to the side wall of the energy storage box, which not only improves the energy storage efficiency of the phase-change material, but also improves the utilization rate of the heat source.

[0019] 3. The phase-change energy storage water heater can drive the diversion and cleaning mechanism to rotate along the energy storage box through the driving mechanism, which can not only transport the heat source to the outer wall of the energy storage box, further improve the utilization rate of the heat source and reduce the waste of heat from the heat source, but also prevent scale in the heat source from being adsorbed on the outer wall of the energy storage box, thereby reducing the resistance of the phase change material during energy storage and further improving the energy storage efficiency of the phase change material.

[0020] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention can overcome the problems of low energy storage efficiency of phase change materials, low heat source utilization, low thermal energy utilization of phase change materials, and waste of heat from heat sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a phase change energy storage water heater proposed by the present invention Figure 1 ;

[0022] Figure 2 A schematic diagram of the structure of a phase change energy storage water heater proposed by the present invention Figure 2 ;

[0023] Figure 3 This is a schematic diagram of a partial cross-sectional structure of a phase-change energy storage water heater proposed by the present invention;

[0024] Figure 4 A schematic diagram of the partial structure of a phase change energy storage water heater proposed by the present invention Figure 1 ;

[0025] Figure 5 This is a schematic diagram of the partial cross-sectional structure of an energy storage tank in a phase-change energy storage water heater proposed by the present invention;

[0026] Figure 6 A schematic diagram of the partial structure of a phase change energy storage water heater proposed by the present invention Figure 2 ;

[0027] Figure 7 A phase change energy storage water heater proposed by the present invention Figure 4 Schematic diagram of the structure of part A;

[0028] Figure 8 A phase change energy storage water heater proposed by the present invention Figure 4 Schematic diagram of the structure of part B.

[0029] In the figure: 1. heat exchange box; 2. energy storage box; 3. hot water exchange pipe; 4. overflow pipe; 5. thermal energy pipe; 6. first pneumatic valve; 7. second pneumatic valve; 8. first rotating shaft; 9. first driving member; 10. heat insulation plate; 11. first connecting shaft; 12. first bevel gear set; 13. sealed telescopic shaft; 14. sealing plate; 15. rotating rod; 16. guide plate; 17. spring; 18. second rotating shaft; 19. second driving member; 20. second connecting shaft; 21. second bevel gear set; 22. mounting shaft; 23. driven bevel gear; 24. driving wheel; 25. belt; 26. limiting ring; 27. rotating ring; 28. guide plate; 29. ​​cleaning brush; 30. linkage wheel. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention. Example

[0032] Reference Figures 1-8 A phase change energy storage water heater comprises a heat exchange box 1 and two sets of energy storage boxes 2 symmetrically fixedly connected in the heat exchange box 1. The side wall of the heat exchange box 1 is made of heat insulating material to reduce the energy consumption when the phase change material stores energy. The side wall of the energy storage box 2 is made of heat transfer material to ensure the stability of the phase change material energy storage. It also includes: a heat insulation board 10 fixedly connected in the heat exchange box 1. The specific structure of the heat insulation board 10 can refer to the technical solution in the prior art. Those skilled in the art can know that the heat insulation board 10 can reduce the heat transfer between the materials on both sides and the insulation The heat plate 10 is located between the two groups of energy storage boxes 2; a heating unit is arranged on the outer wall of the heat exchange box 1, and the heating unit is respectively connected to the two sides of the heat insulation plate 10; a monitoring guide unit is arranged on the energy storage box 2, and the monitoring guide unit and the heating unit are connected through a pipeline, wherein a driving mechanism is provided between the heating unit and the monitoring guide unit, and the heating unit can drive the monitoring guide unit to rotate along a predetermined trajectory through the driving mechanism; a diversion cleaning mechanism is arranged on the inner wall of the heat exchange box 1 and connected to the driving mechanism, and is used to clean the outer wall of the energy storage box 2.

[0033] In this embodiment, the heat insulation board 10 separates the energy storage tanks 2 on both sides to avoid mutual influence. The energy type at the inlet end of the heating unit is not limited here, and hot air, hot water, etc. can be used. The hot water can not only be self-heating, but also can be recycled from factory hot water. When the heat source is stored in the phase change material, the monitoring guide unit can monitor the energy storage state of the phase change material and control the supply direction of the heat source to facilitate the function of the phase change material in the energy storage tank 2 in different directions. Since the heat source has a certain kinetic energy when supplying heat to the heat exchange box 1, it can drive the drive mechanism to rotate. The driving mechanism drives the monitoring guide unit to rotate, so that when the phase change material is storing energy, the phase change material that is not storing energy (that is, the phase change material that has not undergone phase change) is transported to the side wall of the energy storage box 2, thereby improving the energy storage efficiency of the phase change material and reducing the heat transfer resistance of the phase change material. Furthermore, the driving mechanism can also drive the diversion and cleaning mechanism to rotate. On the one hand, it can divert the heat source entering the heat exchange box 1 to the side of the energy storage box 2 to improve the heat transfer efficiency between the heat source and the phase change material. On the other hand, it can clean the scale and the like on the surface of the energy storage box 2 to prevent the scale and the like from affecting the heat transfer between the heat source and the phase change material.

[0034] Reference Figure 1-Figure 3 The heating unit includes a heat energy pipe 5 connected to the outer wall of the heat exchange box 1. The heat energy pipe 5 includes a group of inlet ends and two groups of outlet ends. The two groups of outlet ends are respectively located at the bottom of the heat exchange box 1 and above the insulation board 10. A first pneumatic valve 6 is provided on the side of the heat energy pipe 5 close to the bottom of the heat exchange box 1, and a second pneumatic valve 7 is provided on the side of the heat energy pipe 5 close to the top of the insulation board 10.

[0035] It needs to be explained that the specific structure of the first pneumatic valve 6 and the second pneumatic valve 7 can refer to the technical solutions in the prior art, which can be known to those skilled in the art and will not be elaborated here. The first pneumatic valve 6 is initially in an open state, and the second pneumatic valve 7 is initially in a closed state. When gas adsorbs the first pneumatic valve 6 and reaches a certain amount, the first pneumatic valve 6 is in a closed state. The working principle of the second pneumatic valve 7 is the same as that of the first pneumatic valve 6, but the process is opposite, and it is used to store energy in phase change materials at different positions.

[0036] Reference Figure 4 and Figure 5The monitoring guide unit includes a sealed telescopic shaft 13 symmetrically connected to the insulation plate 10, the end of the sealed telescopic shaft 13 extends into the interior of the energy storage box 2, and the end of the sealed telescopic shaft 13 is fixedly connected to a sealing plate 14. A spring 17 is provided between the sealing plate 14 and the top of the energy storage box 2. The lower sealed telescopic shaft 13 is connected to the first pneumatic valve 6 and the second pneumatic valve 7 through an air slip ring and a pipeline. The sealing plate 14 fits tightly against the inner wall of the energy storage box 2, and the spring 17 is rotatably connected to the top of the energy storage box 2, and the spring 17 is sleeved on the outside of the sealed telescopic shaft 13.

[0037] Initially, the phase change material fills the space between the sealing plate 14 and the energy storage box 2. It should be explained that since the phase change material is initially in a solid state and in a granular form, there are gaps between the phase change materials. When heat energy is stored in the phase change material, the phase change material changes from a solid state to a liquid state, and at the same time, the gaps between the phase change materials gradually decrease, that is, when the phase change material changes from a solid state to a liquid state, the total volume decreases. Under the action of the spring 17, the sealing plate 14 can be closely fitted with the phase change material, thereby monitoring the energy storage state of the phase change material. That is, when the phase change material completes energy storage, the volume of the phase change material decreases, and the sealed telescopic shaft 13 extends. , the first pneumatic valve 6 and the second pneumatic valve 7 are adsorbed, so that the bottom of the heat energy pipe 5 is in a closed state and the upper and lower states are in an open state, so as to facilitate energy storage of the phase change material at different positions. Among them, the sealed telescopic shaft 13 can rotate and retract at the same time. The telescopic part and the fixed part of the sealed telescopic shaft 13 are in a sealed state and are connected to the air slip ring. The specific structure can refer to the technical solutions in the prior art, and those skilled in the art can know it. In addition, the air slip ring is a conventional means in the prior art, which can enable the sealed telescopic shaft 13 to achieve stable internal gas transportation while rotating.

[0038] Reference Figure 5 , and also includes a rotating rod 15 fixedly connected to the side of the sealing plate 14 away from the sealing telescopic shaft 13, and multiple groups of guide plates 16 are fixedly connected to the rotating rod 15. The distance between the guide plate 16 and the inner wall of the energy storage box 2 is greater than the size of the phase change material, and the guide plate 16 is provided with multiple groups of through holes.

[0039] When the rotating rod 15 drives the guide plate 16 to rotate, since the guide plate 16 has multiple sets of through holes, the liquid phase change material can pass through the through holes, while the solid phase change material moves outward under the action of the guide plate 16 (under the action of centrifugal force), so that the phase change material that has not undergone phase change gradually moves to the side wall of the energy storage box 2 to accelerate the energy storage efficiency of the phase change material. It should be explained that initially, since the sealing plate 14 moves toward the side of the phase change material when the phase change material stores energy, there is a certain distance between the rotating rod 15 and the energy storage box 2 to ensure the stable movement of the sealing plate 14.

[0040] Reference Figure 3 、 Figure 4 、 Figure 7 and Figure 8 The driving mechanism includes a first rotating shaft 8 rotatably connected to the outer wall of the energy storage box 2 near the outlet end below the heat energy pipe 5, the end of the first rotating shaft 8 is fixedly connected to the first driving member 9, the heat insulation plate 10 is rotatably connected to the first connecting shaft 11 on the side near the first rotating shaft 8, a first bevel gear set 12 is provided between the first connecting shaft 11 and the first rotating shaft 8, the first driving member 9 matches the outlet end below the heat energy pipe 5, and also includes a second rotating shaft 18 rotatably connected to the outer wall of the energy storage box 2 near the outlet end above the heat energy pipe 5, the end of the second rotating shaft 18 is fixedly connected to the second driving member 19, the top of the heat exchange box 1 is rotatably connected to the second connecting shaft 20 on the side near the second rotating shaft 18, a second bevel gear set 21 is provided between the second connecting shaft 20 and the second rotating shaft 18, and the second driving member 19 matches the outlet end above the heat energy pipe 5.

[0041] When heating the phase change material, the heat source can be hot air, hot water, etc. The specific structure of the first drive member 9 and the second drive member 19 can refer to the structure of the water wheel or wind wheel in the prior art. Its surface is spiral. When air or water flows through the first drive member 9 and the second drive member 19, it can drive them to rotate. When heat energy is transported to the heat exchange box 1 through the heat energy pipe 5, the first drive member 9 or the second drive member 19 can be driven to rotate through the transportation of heat sources in different directions. Not only can the heat source be used to heat the phase change material, but the power in the heat source transportation process can also be used. In addition, the first drive member 9 and the second drive member 19 will also generate heat when rotating to reduce the loss of the heat source and maximize the utilization rate of the heat source.

[0042] Reference Figure 3 、 Figure 7 and Figure 8 , and also includes a mounting shaft 22 rotatably connected to the side of the heat insulation plate 10 close to the second rotating shaft 18, the end of the mounting shaft 22 is fixedly connected to a driven bevel gear 23 meshing with the second bevel gear set 21, and the mounting shaft 22 and the first connecting shaft 11 are fixedly connected to the side of the sealed telescopic shaft 13 with a driving wheel 24, and a belt 25 is sleeved between the driving wheel 24 and the sealed telescopic shaft 13 in the corresponding direction.

[0043] When the first driving member 9 or the second driving member 19 rotates in different directions, the sealed telescopic shaft 13 in the corresponding direction is driven to rotate through the driving wheel 24 and the belt 25. That is, when the phase change material in the energy storage box 2 is storing energy, the guide plate 16 in the corresponding direction can be driven to rotate, so as to facilitate the phase change material in the energy storage box 2 in the corresponding direction that has not undergone phase change to be transported to the side wall of the energy storage box 2, so as to improve the energy storage efficiency of the phase change material and avoid the situation where the heat source is not fully utilized and then discharged. Compared with the phase change water heater in the prior art, the heat energy utilization rate and energy storage efficiency are higher, and it is more energy-saving and environmentally friendly.

[0044] Reference Figure 3 、 Figure 4 and Figure 6 The diversion and cleaning mechanism includes two pairs of limiting rings 26 fixedly connected to the inner wall of the heat exchange box 1 near the energy storage box 2, and a rotating ring 27 is slidably connected inside the limiting ring 26. A plurality of guide plates 28 are fixedly connected between the two groups of rotating rings 27 near one side of the energy storage box 2. A cleaning brush 29 is fixedly connected to the inner side of the guide plate 28, and the cleaning brush 29 is in contact with the outer wall of the energy storage box 2. The first connecting shaft 11 and the second connecting shaft 20 are fixedly connected to a linkage wheel 30 that is in close contact with the rotating ring 27.

[0045] The driving method of the rotating ring 27 and the linkage wheel 30 is not limited here. Friction or gear meshing can be used. The limiting ring 26 is connected to the inner wall of the heat exchange box 1 through a fixing member, and the limiting ring 26 is an incomplete ring shape to facilitate the connection between the rotating ring 27 and the linkage wheel 30. When the first driving member 9 or the second driving member 19 rotates, the linkage wheel 30 in the corresponding direction will be driven to rotate, thereby driving the rotating ring 27 in the corresponding direction to rotate. It should be explained that the guide plate 28 is in an inclined state, and the inclination direction of the guide plate 28 is not limited. As long as It can be achieved that when the heat source is transported into the heat exchange box 1, the rotating ring 27 and the guide plate 28 are driven to rotate, and the guide plate 28 can transport the heat source to the side of the outer wall of the energy storage box 2. In addition, the specific structure of the cleaning brush 29 can refer to the technical solutions in the prior art. Those skilled in the art can know that when the guide plate 28 rotates, it can drive the cleaning brush 29 to rotate along the outer wall of the energy storage box 2, and the hot water pipe 3 will not affect the rotation of the cleaning brush 29. During the rotation process, the cleaning brush 29 can clean the outer wall of the energy storage box 2 to prevent impurities such as scale in the heat source from affecting the heat transfer efficiency of the heat source.

[0046] Reference Figure 1-Figure 3, further comprising a hot water exchange pipe 3 provided on the heat exchange box 1, the inlet end of the hot water exchange pipe 3 being close to the lower portion of the lower energy storage box 2, the outlet end of the hot water exchange pipe 3 being close to the upper portion of the upper energy storage box 2, and the hot water exchange pipe 3 being spirally wound around the outer wall of the energy storage box 2, and further comprising two groups of overflow pipes 4 connected to the outer wall of the heat exchange box 1, one group of overflow pipes 4 being close to the lower portion of the insulation board 10, and the other group of overflow pipes 4 being close to the upper portion of the upper energy storage box 2.

[0047] Both ends of the heat exchange water pipe 3 extend to the outside of the heat exchange tank 1, and the portion of the heat exchange water pipe 3 located on the outer wall of the two groups of energy storage tanks 2 is spiral. The heat exchange water pipe 3 between the two groups of energy storage tanks 2 passes through the insulation board 10. When hot water is used, the cold water is preferentially heated by the heat released by the phase change material in the lower energy storage tank 2. When the heat stored in the phase change material in the lower energy storage tank 2 has not been completely released, the phase change material in the upper energy storage tank 2 releases heat for heating. This segmented heating method can prevent mutual influence between phase change materials in different directions, avoid the water outlet temperature not meeting the use temperature requirement, and avoid the heat in the phase change material that has not been released, thereby improving the utilization rate of the phase change material.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A phase-change energy storage water heater, comprising a heat exchange box (1) and two sets of energy storage boxes (2) symmetrically fixedly connected in the heat exchange box (1), characterized in that: Also includes: A heat insulation plate (10) fixedly connected to the heat exchange box (1), wherein the heat insulation plate (10) is located between the two groups of energy storage boxes (2); A heating unit is provided on the outer wall of the heat exchange box (1), the heating unit being respectively connected to both sides of the heat insulation plate (10); A monitoring guide unit is provided on the energy storage box (2), wherein the monitoring guide unit is connected to the heating unit via a pipeline. Wherein, a driving mechanism is provided between the heating unit and the monitoring and guiding unit, and the heating unit can drive the monitoring and guiding unit to rotate along a predetermined trajectory through the driving mechanism; A flow guide cleaning mechanism provided on the inner wall of the heat exchange box (1) and connected to the drive mechanism, for cleaning the outer wall of the energy storage box (2); The heat supply unit comprises a heat energy pipe (5) connected to the outer wall of the heat exchange box (1), the heat energy pipe (5) comprises a group of inlet ends and two groups of outlet ends, the two groups of outlet ends are respectively located at the bottom of the heat exchange box (1) and above the heat insulation plate (10), a first pneumatic valve (6) is provided on the side of the heat energy pipe (5) close to the bottom of the heat exchange box (1), and a second pneumatic valve (7) is provided on the side of the heat energy pipe (5) close to the top of the heat insulation plate (10); The monitoring guide unit comprises a sealed telescopic shaft (13) symmetrically connected to the heat insulation plate (10), the end of the sealed telescopic shaft (13) extending into the interior of the energy storage box (2), the end of the sealed telescopic shaft (13) being fixedly connected to a sealing plate (14), and a spring (17) being provided between the sealing plate (14) and the top of the energy storage box (2). The sealed telescopic shaft (13) at the bottom is connected to the first pneumatic valve (6) and the second pneumatic valve (7) via an air slip ring and a pipeline. The sealing plate (14) is tightly fitted with the inner wall of the energy storage box (2). The spring (17) is rotatably connected to the top of the energy storage box (2), and the spring (17) is sleeved on the outside of the sealed telescopic shaft (13). It also includes a rotating rod (15) fixedly connected to the side of the sealing plate (14) away from the sealing telescopic shaft (13), and a plurality of guide plates (16) are fixedly connected to the rotating rod (15). The distance between the guide plates (16) and the inner wall of the energy storage box (2) is greater than the size of the phase change material, and the guide plates (16) are provided with a plurality of through holes.

2. A phase change energy storage water heater according to claim 1, characterized in that: The driving mechanism comprises a first rotating shaft (8) rotatably connected to the outer wall of the energy storage box (2) near the outlet end below the heat energy pipe (5); the end of the first rotating shaft (8) is fixedly connected to a first driving member (9); the side of the heat insulation plate (10) near the first rotating shaft (8) is rotatably connected to a first connecting shaft (11); a first bevel gear set (12) is provided between the first connecting shaft (11) and the first rotating shaft (8); and the first driving member (9) matches the outlet end below the heat energy pipe (5).

3. A phase change energy storage water heater according to claim 2, characterized in that: The heat exchange box (1) further comprises a second rotating shaft (18) rotatably connected to the outer wall of the energy storage box (2) near the outlet end above the heat energy pipe (5), the end of the second rotating shaft (18) being fixedly connected to a second driving member (19), a second connecting shaft (20) being rotatably connected to the side of the top of the heat exchange box (1) near the second rotating shaft (18), a second bevel gear set (21) being provided between the second connecting shaft (20) and the second rotating shaft (18), and the second driving member (19) matching the outlet end above the heat energy pipe (5).

4. A phase change energy storage water heater according to claim 3, characterized in that: The invention also includes a mounting shaft (22) rotatably connected to the side of the heat insulation plate (10) close to the second rotating shaft (18), the end of the mounting shaft (22) is fixedly connected to a driven bevel gear (23) meshing with the second bevel gear set (21), the mounting shaft (22) and the side of the first connecting shaft (11) close to the sealing telescopic shaft (13) are both fixedly connected to a driving wheel (24), and a belt (25) is sleeved between the driving wheel (24) and the sealing telescopic shaft (13) in the corresponding direction.

5. A phase change energy storage water heater according to claim 4, characterized in that: The diversion cleaning mechanism comprises two pairs of limiting rings (26) fixedly connected to the inner wall of the heat exchange box (1) near the energy storage box (2), a rotating ring (27) is slidably connected inside the limiting ring (26), and a plurality of guide plates (28) are fixedly connected between the two groups of rotating rings (27) near one side of one group of energy storage boxes (2), and a cleaning brush (29) is fixedly connected to the inner side of the guide plate (28), and the cleaning brush (29) is in contact with the outer wall of the energy storage box (2). Wherein, a linkage wheel (30) that is tightly fitted with the rotating ring (27) is fixedly connected to the first connecting shaft (11) and the second connecting shaft (20).

6. The phase change energy storage water heater according to claim 1, characterized in that: It also includes a heat exchange water pipe (3) arranged on the heat exchange box (1), the inlet end of the heat exchange water pipe (3) is close to the lower part of the lower energy storage box (2), the outlet end of the heat exchange water pipe (3) is close to the upper part of the upper energy storage box (2), and the heat exchange water pipe (3) is spirally wound on the outer wall of the energy storage box (2).

7. The phase change energy storage water heater according to claim 1, characterized in that: It also includes two groups of overflow pipes (4) connected to the outer wall of the heat exchange box (1), wherein one group of the overflow pipes (4) is close to the bottom of the insulation board (10), and the other group of the overflow pipes (4) is close to the upper part of the upper energy storage box (2).

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