Heat exchange and energy storage device

Abstract

The utility model discloses a heat exchange and energy storage device which comprises a tank body, an upper cover, a heating module, a heat exchange pipe and a stirring piece, the tank body is used for storing an energy storage medium, the upper cover covers the tank body, the heating module is used for heating the energy storage medium in the tank body, the heat exchange pipe is arranged in the tank body and used for flowing a heat exchange medium, and the stirring piece is used for stirring the heat exchange medium in the tank body. Heat exchange between a heat exchange medium and an energy storage medium is realized through the heat exchange pipe; and the stirring piece can rotate in the tank body to stir the energy storage medium. In the process that the heat exchange medium flows in the heat exchange pipe, the stirring piece can be controlled to rotate and stir the energy storage medium, so that the energy storage medium integrally rotates in the tank body to form rotational flow, the heat exchange medium in the flowing state in the heat exchange pipe exchanges heat with the energy storage medium in the rotational flow state in the tank body, and dynamic heat exchange is achieved; the heat exchange efficiency of the heat exchange medium and the energy storage medium is effectively improved, and the temperature of the heat exchange medium is greatly increased within a short time through heat exchange.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purifiers, in particular to a heat exchange and energy storage device. BACKGROUND

[0002] The heat purification all-in-one machine can provide normal temperature water and hot water for users, and is increasingly favored by consumers, gradually becoming an indispensable product in household appliances. The heat purification all-in-one machine includes a filter core and an instant heater. The working principle is that the filter core filters the tap water to produce purified water, which is directly output or heated by the instant heater and then output, so that the function of outputting normal temperature water or hot water can be realized after connecting to the water outlet nozzle. The traditional heat purification all-in-one machine has some deficiencies, for example, the instant heater needs to heat the water to a predetermined temperature in a short time, but the amount of water that can be heated in a short time is limited, and large water volume cannot be heated, the hot water discharge flow rate is small, resulting in small water supply.

[0003] To improve the above problems, the heat purification all-in-one machine with a heat exchange and energy storage device has appeared. The heat exchange and energy storage device includes a heat exchange pipe and an energy storage tank. The energy storage tank contains high-temperature energy storage medium. The heat exchange pipe is immersed in the high-temperature energy storage medium. For example, heated boiled water can be stored in the energy storage tank as high-temperature energy storage medium. The normal temperature water filtered by the filter core is transported to the instant heater through the heat exchange pipe. During the transportation process, the normal temperature water in the heat exchange pipe exchanges heat with the high-temperature energy storage medium, so that the normal temperature water is preheated and then enters the instant heater for heating, thereby helping to shorten the heating time and improve the hot water output. However, the heat exchange and energy storage device still has some defects, for example, the high-temperature energy storage medium in the energy storage tank is in a relatively stable static state on a macroscopic scale. As the normal temperature water exchanges heat with the energy storage medium, the normal temperature water gradually warms up, and the energy storage medium near the heat exchange pipe gradually cools down. The temperatures of the two tend to be close, resulting in a gradual slowdown of heat conduction of the energy storage medium to the normal temperature water. The heat exchange efficiency of the normal temperature water in the heat exchange pipe and the high-temperature energy storage medium is low, the water temperature increasing effect on the normal temperature water is limited, and the water flow rate increasing effect is also limited. The hot water output in a short time only has a small increase. Practical new type content

[0004] The present application provides a heat exchange and energy storage device to improve the technical problem of low heat exchange efficiency of the existing heat exchange and energy storage device of the heat purification all-in-one machine when the normal temperature water exchanges heat with the macrostatic high-temperature energy storage medium.

[0005] The technical scheme adopted by the present application is:

[0006] A heat exchange and energy storage device includes a tank, a top cover, a heating module, a heat exchange tube, and a stirring component. The tank is used to store an energy storage medium. The top cover covers the tank. The heating module is used to heat the energy storage medium inside the tank. The heat exchange tube is disposed inside the tank and is used to flow the heat exchange medium, so that the heat exchange medium and the energy storage medium can exchange heat through the heat exchange tube. The stirring component can rotate and agitate the energy storage medium inside the tank.

[0007] In this technical solution, during the flow of the heat exchange medium inside the heat exchange tube, the energy storage medium can be agitated by controlling the rotation of the stirring element, causing the energy storage medium to rotate as a whole within the tank and form a swirling flow. The heat exchange medium in the flowing state inside the heat exchange tube exchanges heat with the energy storage medium in the swirling state within the tank, achieving dynamic heat exchange. During the heat exchange process, the cooled energy storage medium around the heat exchange tube is replaced by the high-temperature energy storage medium from the periphery under the agitation of the stirring element. The high-temperature energy storage medium continues to provide a large amount of heat to the heat exchange medium. Therefore, compared to exchanging heat between the heat exchange medium and the energy storage medium under macroscopic static conditions, dynamic heat exchange effectively improves the heat exchange efficiency between the heat exchange medium and the energy storage medium, allowing the heat exchange medium to achieve a significant temperature increase in a short period of time through heat exchange. When the heat exchange and energy storage device is applied to the integrated water purification and heating machine, the room temperature water filtered by the filter element can be used as the heat exchange medium and flow towards the instantaneous heat exchanger through the heat exchange tube. During the flow, it exchanges heat with the high temperature energy storage medium under the stirring action of the stirring element. The room temperature water is preheated and its temperature rises significantly in a short time. It only needs to be heated in the instantaneous heat exchanger for a short time to reach a higher temperature, so that the instantaneous heat exchanger can quickly produce hot water, thereby increasing the water output and water temperature.

[0008] The stirring component includes a stirring rod and an impeller fixed to the stirring rod, the impeller including a plurality of blades evenly distributed circumferentially.

[0009] In this technical solution, the stirring component includes a stirring rod and an impeller. The rotation of the stirring rod drives the impeller to rotate, and the impeller blades agitate the energy storage medium. The blades have a large force-bearing area, which can act on the energy storage medium over a larger area, thereby helping to drive the energy storage medium to rotate at a larger amplitude, increasing the rotation speed of the energy storage medium swirling, and thus improving the heat exchange efficiency.

[0010] The stirring rod is erected in the tank, and a plurality of impellers are arranged at intervals along the axial direction of the stirring rod, with the blades arranged at an angle relative to the vertical direction.

[0011] In the technical solution, the stirring rod drives multiple impellers to rotate in the rotating process, thereby increasing the stirring effect on the energy storage medium. In the preferred embodiment, one impeller can be arranged at the upper part, the middle part and the lower part of the tank body respectively. The impeller at the upper part effectively stirs the energy storage medium at the upper part of the tank body, the impeller at the middle part effectively stirs the energy storage medium at the middle part of the tank body, and the impeller at the lower part effectively stirs the energy storage medium at the lower part of the tank body, thereby making the energy storage medium fully stirred to form a rotating flow, and improving the heat exchange efficiency with the heat exchange medium. The blades are arranged obliquely relative to the vertical direction, which can reduce the pressure angle, reduce the force imbalance of the blades during rotation, make the stirring piece rotate more stably, and also have a disturbance effect of driving the energy storage medium to move in the vertical direction, so that the energy storage medium moves in multiple directions, which is helpful to more fully heat exchange.

[0012] The tank body bottom is provided with a limiting pin shaft, and the lower end of the stirring rod is provided with a limiting rotating hole matched with the limiting pin shaft in rotation; the heat exchange and energy storage device further comprises a driving motor, the upper cover is provided with an avoiding hole, the upper end of the stirring rod is arranged to pass out of the avoiding hole and is connected with the output shaft of the driving motor.

[0013] In the technical solution, the limiting rotating hole is arranged at the bottom center of the stirring rod, so that the stirring rod is just inserted on the limiting pin shaft at the bottom of the tank body, the limiting pin shaft limits the stirring rod in the radial direction, and the stirring rod is limited in the rotation freedom; the stirring rod is driven to rotate by the driving motor, so that the program control driving motor can automatically run or stop to drive the stirring rod to automatically rotate, the driving motor can drive the stirring piece to rotate at a high speed, thereby improving the rotating speed of the energy storage medium, and further improving the heat exchange efficiency.

[0014] The tank body bottom is provided with a convex point, and multiple convex points are arranged around the limiting pin shaft, and the lower end of the stirring rod is in abutment with the convex point.

[0015] In the technical solution, the convex point supports the stirring rod, reduces the contact area between the bottom end of the stirring rod and the bottom wall of the tank body, thereby reducing the sliding friction force generated from the bottom wall of the tank body during the rotation of the stirring rod, making the rotation of the stirring rod more smooth and fluent, and also reducing the friction noise generated during the rotation.

[0016] The heat exchange pipe comprises a first heat exchange pipe section and a second heat exchange pipe section which are integrally formed, the first heat exchange pipe section extends spirally along the vertical direction and is arranged around the stirring piece, the second heat exchange pipe section extends spirally along the vertical direction and is arranged around the first heat exchange pipe section, one of the first heat exchange pipe section and the second heat exchange pipe section is provided with a water inlet extending outside the tank body, and the other is provided with a water outlet extending outside the tank body.

[0017] In the technical solution, the first heat exchange pipe section and the second heat exchange pipe section extend spirally in the vertical direction, so that the length of the heat exchange pipe is as long as possible in the limited space in the tank body, thereby prolonging the flow path of the heat exchange medium in the heat exchange pipe, so that the heat exchange medium and the energy storage medium are fully heat exchanged, and the temperature of the heat exchange medium after heat exchange is improved. The first heat exchange pipe section is arranged around the stirring member, the second heat exchange pipe section is arranged around the first heat exchange pipe section, the stirring member rotates on the inner side of the first heat exchange pipe section, and after acting on the energy storage medium, the energy storage medium farther from the stirring member has a larger rotation amplitude, so that the energy storage medium can more conduct heat to the first heat exchange pipe section and the second heat exchange pipe section, and the heat exchange efficiency is improved.

[0018] The heat exchange and energy storage device further comprises a positioning sheet connected to the first heat exchange pipe section and the second heat exchange pipe section, and the positioning sheet is connected to the tank body to limit the heat exchange pipe.

[0019] In the technical solution, the first heat exchange pipe section and the second heat exchange pipe section are connected by the positioning sheet, the connection reliability of the first heat exchange pipe section and the second heat exchange pipe section is improved, the strength of the heat exchange pipe is improved, and the damage risk is reduced. Moreover, since the heat exchange pipe generally has a circular tubular structure and the surface is a curved surface, it is not easy to position, so the heat exchange pipe can be kept relatively fixed with the tank body by connecting the positioning sheet to the tank body, so as to prevent the heat exchange pipe from moving in the tank body and affecting heat exchange or even affecting the rotation of the stirring member.

[0020] A plurality of positioning sheets are uniformly distributed in the circumferential direction, the positioning sheet comprises a first vertical section, a second vertical section and a horizontal section, the first vertical section is connected to the first heat exchange pipe section, the second vertical section is connected to the second heat exchange pipe section, the horizontal section is arranged below the heat exchange pipe and has two ends connected to the first vertical section and the second vertical section respectively, and the tank body is provided with a limiting clamping groove, and the horizontal section is clamped into the limiting clamping groove.

[0021] In the technical solution, the connection reliability of the positioning sheet and the heat exchange pipe is improved, and the convenience and stability of the connection between the positioning plate and the tank body are improved.

[0022] The bottom of the tank body is provided with a lower limiting rib, and the upper cover is provided with an upper limiting rib, and the upper limiting rib and the lower limiting rib limit and fix the heat exchange pipe.

[0023] In the technical solution, the lower limiting rib and the upper limiting rib stably and reliably support and limit the heat exchange pipe, so that the heat exchange pipe and the tank body are kept in a relatively fixed state, and stable heat exchange of the heat exchange medium and the energy storage medium is ensured.

[0024] The bottom of the tank body is provided with a mounting hole for mounting the heating module and a support table protruding upward relative to the mounting hole, the support table supports the stirring member and the heat exchange pipe, and a heat insulation gap is arranged between the support table and the heating module.

[0025] In the technical solution, the support table supports the stirring member and the heat exchange pipe, so that the stirring member and the heat exchange pipe are away from the heat-emitting surface of the heating module, to prevent the temperature of the stirring member and the heat exchange pipe from being too high and affecting the service life.

[0026] Due to the adoption of the above technical solution, the application has the following technical effects: in the process of flowing of the heat exchange medium in the heat exchange pipe, the stirring member rotates to stir the energy storage medium, so that the energy storage medium rotates as a whole in the tank body to form a rotational flow; the heat exchange medium in the heat exchange pipe in the flowing state exchanges heat with the energy storage medium in the tank body in the rotational flow state, to realize dynamic heat exchange; in the heat exchange process, the energy storage medium around the heat exchange pipe, which is cooled, is replaced by the high-temperature energy storage medium in the periphery under the stirring action of the stirring member, and the high-temperature energy storage medium continues to provide a large amount of heat to the heat exchange medium; therefore, compared with the heat exchange between the heat exchange medium and the energy storage medium in a static state, the dynamic heat exchange effectively improves the heat exchange efficiency between the heat exchange medium and the energy storage medium; through heat exchange, the heat exchange medium obtains a large temperature rise in a short time. When the heat exchange and energy storage device is applied to a net heat integrated machine, the normal-temperature water filtered by a filter element can be used as the heat exchange medium and flow through the heat exchange pipe towards the instant heating body; in the flowing process, the normal-temperature water exchanges heat with the high-temperature energy storage medium in the rotational flow state under the stirring action of the stirring member; the normal-temperature water is preheated and greatly raised in temperature in a short time; only a short time of heating in the instant heating body is needed to raise the temperature to a high temperature, so that the instant heating body quickly heats water, and the water output and the water temperature are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application in any way. In the drawings:

[0028] Figure 1 An exploded view of the heat exchange and energy storage device provided by the embodiment of the application;

[0029] Figure 2 A sectional view of the heat exchange and energy storage device provided by the embodiment of the application;

[0030] Figure 3 An enlarged view of structure A in FIG. 1; Figure 2 An enlarged view of structure B in FIG. 1;

[0031] Figure 4 An enlarged view of structure C in FIG. 1; Figure 2 An enlarged view of structure D in FIG. 1;

[0032] Figure 5 A structural schematic view of the stirring member provided by the embodiment of the application;

[0033] Figure 6 A structural schematic view of the heat exchange pipe provided by the embodiment of the application;

[0034] Figure 7 Structure diagram of the upper cover provided by the embodiment of the present application;

[0035] Figure 8 Sectional view of the tank body provided by the embodiment of the present application;

[0036] Figure 9 For Figure 8 Enlarged view of the structure at C.

[0037] Parts and list of reference numerals:

[0038] 1 tank body, 11 limit pin shaft, 12 convex point, 13 limit clamping groove, 14 limit block, 15 lower limit rib, 16 mounting hole, 17 support table;

[0039] 2 upper cover, 21 liquid supplementing port, 22 exhaust port, 23 water level detecting port, 24 avoiding hole, 25 first through hole, 26 second through hole, 27 upper limit rib, 28 clamping groove;

[0040] 3 heating module;

[0041] 4 heat exchange pipe, 41 first heat exchange pipe section, 411 water inlet, 42 second heat exchange pipe section, 421 water outlet;

[0042] 5 stirring piece, 51 stirring rod, 511 limit rotating hole, 512 clamping ring groove, 52 blade;

[0043] 6 support;

[0044] 7 sealing body;

[0045] 8 water level sensor;

[0046] 9 driving motor;

[0047] 10 sealing ring;

[0048] 100 positioning sheet, 101 first vertical section, 102 second vertical section, 103 horizontal section;

[0049] 200 temperature sensor;

[0050] 300 clamping ring. DETAILED DESCRIPTION

[0051] In order to more clearly explain the overall concept of the present application, the following will be described in detail in an exemplary manner with reference to the accompanying drawings.

[0052] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be practiced in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0053] In addition, in the description of the present application, it needs to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0054] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, or communication; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of the specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] In the embodiments of the present application, a heat exchange energy storage device is provided. For the convenience of description and understanding, the following content provided by the present application is described on the basis of the structure of the product. Of course, those skilled in the art can understand that the above structure is only a specific example and illustrative description, and cannot constitute a specific limitation on the technical solutions provided by the present application.

[0057] Reference Figures 1 to 9As shown, the heat exchange and energy storage device provided by the present application comprises a tank body 1, an upper cover 2, a heating module 3, a heat exchange pipe 4 and a stirring member 5. The tank body 1 is used for storing energy storage medium. The upper cover 2 covers the tank body 1. The heating module 3 is used for heating the energy storage medium in the tank body 1. The heat exchange pipe 4 is arranged in the tank body 1 and is used for flowing heat exchange medium, so that the heat exchange medium and the energy storage medium realize heat exchange through the heat exchange pipe 4. The stirring member 5 can rotate to stir the energy storage medium in the tank body 1.

[0058] Specifically, the tank body 1 and the upper cover 2 can be assembled together through screw connection, clamping or other detachable connection modes. After being assembled, the two parts clamp the heat exchange pipe 4 to prevent the heat exchange pipe 4 from moving. Figure 1 、 Figure 2 and Figure 7 As shown, the tank body 1 and the upper cover 2 are sealed through a sealing ring 10. The heating module 3 is limited in the tank body 1 through a support 6. The support 6 and the tank body 1 can be connected through a screw. A sealing body 7 is arranged between the heating module 3 and the tank body 1 to ensure the sealing property of the tank body 1. The energy storage medium can be water or other liquid medium with good energy storage effect. A liquid supplement port 21 for supplementing the energy storage medium into the tank body 1 and an exhaust port 22 for discharging steam from the tank body 1 can be arranged on the upper cover 2. The upper cover 2 can also be provided with a water level detection port 23. The water level detection port 23 is installed with a water level sensor 8 for detecting the water level in the tank body 1. A temperature sensor 200 for monitoring the temperature of the energy storage medium can also be installed at the bottom of the tank body. When the energy storage medium is lower than a preset temperature, the heating module 3 is controlled to heat the energy storage medium.

[0059] During the flowing of the heat exchange medium in the heat exchange pipe 4, the stirring member 5 can be controlled to rotate to stir the energy storage medium, so that the energy storage medium rotates as a whole in the tank body 1 to form a rotational flow. The heat exchange medium flowing in the heat exchange pipe 4 exchanges heat with the energy storage medium in the rotational flow in the tank body 1, so as to realize dynamic heat exchange. During the heat exchange process, the energy storage medium around the heat exchange pipe 4 is replaced by the high-temperature energy storage medium outside the periphery under the stirring action of the stirring member 5. The high-temperature energy storage medium continues to provide a large amount of heat to the heat exchange medium. Therefore, compared with the heat exchange between the heat exchange medium and the energy storage medium in a macro static state, the dynamic heat exchange effectively improves the heat exchange efficiency between the heat exchange medium and the energy storage medium. Through heat exchange, the heat exchange medium obtains a large temperature rise in a short time. When the heat exchange and energy storage device is applied to a net heat all-in-one machine, the normal-temperature water filtered by a filter element can be used as the heat exchange medium to flow towards the instant heating body through the heat exchange pipe 4. The normal-temperature water is preheated and greatly heated in a short time by the rotational flow heat exchange with the high-temperature energy storage medium under the stirring action of the stirring member 5. Only a short time is needed to heat the instant heating body, so as to heat the instant heating body to a high temperature, thereby rapidly discharging hot water from the instant heating body and improving the water discharge amount and the water discharge temperature.

[0060] As a preferred embodiment of the present application, as shown inFigure 2 and Figure 5 As shown, the stirring component 5 includes a stirring rod 51 and an impeller fixed to the stirring rod 51. The impeller includes multiple blades 52 evenly distributed circumferentially. In this technical solution, the stirring component 5 includes a stirring rod 51 and an impeller. The rotation of the stirring rod 51 drives the impeller to rotate. The blades 52 of the impeller agitate the energy storage medium. The blades 52 have a large force-bearing area, which can act on the energy storage medium over a larger area, thereby facilitating a larger rotation of the energy storage medium, increasing the rotational speed of the energy storage medium swirling, and thus improving the heat exchange efficiency. Specifically, the stirring rod 51 and the impeller can be integrally formed. In other alternative solutions, the stirring rod 51 and the impeller can be separately formed, and then the impeller can be sleeved and fixed on the stirring rod 51. The fixing method can be snap-fit, welding, etc.

[0061] In a preferred embodiment, such as Figure 2 and Figure 5 As shown, the stirring rod 51 stands vertically inside the tank 1, and multiple impellers are arranged at intervals along the axial direction of the stirring rod 51. The blades 52 are arranged at an angle relative to the vertical direction. In this technical solution, the stirring rod 51 drives multiple impellers to rotate together during rotation, increasing the agitation effect on the energy storage medium. The figure shows an embodiment with three impellers on the stirring rod 51. Therefore, in a preferred embodiment, these three impellers can be arranged at the upper, middle, and lower parts of the tank 1. The impeller at the upper part effectively agitates the energy storage medium in the upper part of the tank 1, the impeller at the middle part effectively agitates the energy storage medium in the middle part of the tank 1, and the impeller at the lower part effectively agitates the energy storage medium in the lower part of the tank 1, thereby fully agitating the energy storage medium to form a swirling flow and improving the heat exchange efficiency with the heat exchange medium. The blades 52 are arranged at an angle relative to the vertical direction, and the angle between each blade 52 and the vertical direction can be set to 20-30°. By tilting the blade 52, the pressure angle can be reduced, the imbalance of forces on the blade 52 during rotation can be reduced, the stirring component 5 can rotate more stably, and it also has a turbulent effect that drives the energy storage medium to move in the vertical direction. The energy storage medium generates multi-directional movement, which helps to achieve more complete heat exchange.

[0062] In a preferred embodiment, such as Figure 2 , Figure 3 , Figure 5 and Figure 7As shown, the tank body 1 bottom is provided with a limit pin shaft 11, and the lower end of the stirring rod 51 is provided with a limit rotating hole 511 which is rotationally matched with the limit pin shaft 11; the heat exchange energy storage device further comprises a driving motor 9, and the upper cover 2 is provided with an avoiding hole 24, and the upper end of the stirring rod 51 is connected with the output shaft of the driving motor 9 through the avoiding hole 24. In the technical solution, the limit rotating hole 511 is arranged at the bottom center of the stirring rod 51, and when the stirring rod 51 is installed from top to bottom, the limit rotating hole 511 is just inserted on the limit pin shaft 11 at the bottom of the tank body 1, and the limit pin shaft 11 limits the stirring rod 51 in the rotational freedom; the stirring rod 51 is driven to rotate by the driving motor 9, and the program-controlled driving motor 9 can be automatically operated or stopped to drive the stirring rod 51 to automatically rotate, and the driving motor 9 can drive the stirring piece 5 to rotate at a high speed, thereby improving the rotation speed of the energy storage medium and further improving the heat exchange efficiency. In addition, as shown in Figure 2 、 Figure 4 and Figure 5 , the upper part of the stirring rod 51 can be provided with a clasp groove 512, so that after the stirring rod 51 is inserted into the avoiding hole 24, the clasp 300 can be used to clamp the clasp groove 512 to prevent the stirring rod 51 from falling downward, thereby facilitating assembly. The sealing ring is used between the stirring rod 51 and the upper cover 2 to prevent the steam generated when the tank body 1 is heated from passing through the avoiding hole 24 to make the temperature of the driving motor 9 too high and affect the service life. Of course, when the conditions permit, the driving motor can also be arranged at the bottom of the tank body 1, and the lower end of the stirring rod is connected with the output shaft of the driving motor through the bottom wall of the tank body 1, so that the driving motor drives the stirring rod to rotate at the bottom of the tank body 1.

[0063] Further, as shown in Figure 2 、 Figure 8 and Figure 9 , the bottom of the tank body 1 is provided with a convex point 12, and a plurality of convex points 12 are arranged around the limit pin shaft 11, and the lower end of the stirring rod 51 abuts against the convex point 12. In the technical solution, the convex point 12 supports the stirring rod 51, reduces the contact area between the bottom end of the stirring rod 51 and the bottom wall of the tank body 1, and further reduces the sliding friction force generated from the bottom wall of the tank body 1 during the rotation of the stirring rod 51, so that the stirring rod 51 rotates more smoothly and smoothly, and the friction noise generated during the rotation is also reduced.

[0064] As a preferred embodiment of the present application, as shown in Figure 2 and Figure 6As shown, the heat exchange pipe 4 comprises a first heat exchange pipe section 41 and a second heat exchange pipe section 42 which are integrally formed, the first heat exchange pipe section 41 extends spirally along the vertical direction and is arranged around the stirring member 5, the second heat exchange pipe section 42 extends spirally along the vertical direction and is arranged around the first heat exchange pipe section 41, one of the first heat exchange pipe section 41 and the second heat exchange pipe section 42 is provided with a water inlet 411 which extends outside the tank body 1, and the other one is provided with a water outlet 421 which extends outside the tank body 1. Specifically, the first heat exchange pipe section 41 is provided with the water inlet 411, and the second heat exchange pipe section 42 is provided with the water outlet 421, as shown in the figure, a first through hole 25 and a second through hole 26 can be arranged on the upper cover 2, one end of the first heat exchange pipe section 41 provided with the water inlet 411 extends outside the tank body 1 through the first through hole 25, and one end of the second heat exchange pipe section 42 provided with the water outlet 421 extends outside the tank body 1 through the second through hole 26. The first heat exchange pipe section 41 and the second heat exchange pipe section 42 both extend spirally along the vertical direction, and the heat exchange pipe 4 has an inner-outer double-layer spiral structure, so that the length of the heat exchange pipe 4 is as long as possible in the limited space in the tank body 1, thereby prolonging the flow path of the heat exchange medium in the heat exchange pipe 4, so that the heat exchange medium and the energy storage medium can be fully heat exchanged, and the temperature of the heat exchange medium after heat exchange is improved. The first heat exchange pipe section 41 is arranged around the stirring member 5, and the second heat exchange pipe section 42 is arranged around the first heat exchange pipe section 41, the stirring member 5 rotates on the inner side of the first heat exchange pipe section 41, and after acting on the energy storage medium, the energy storage medium farther away from the stirring member 5 has a larger rotation amplitude, so that the energy storage medium can more conduct heat to the first heat exchange pipe section 41 and the second heat exchange pipe section 42, and the heat exchange efficiency is improved.

[0065] As a preferred embodiment of the present embodiment, as shown in Figure 6 The heat exchange and energy storage device further comprises a positioning sheet 100 which connects the first heat exchange pipe section 41 and the second heat exchange pipe section 42, and the positioning sheet 100 is connected with the tank body 1 to limit the heat exchange pipe 4. As can be understood by those skilled in the art, since the heat exchange pipe 4 has an inner-outer double-layer spiral structure, the strength is not enough only by connecting the first heat exchange pipe section 41 and the second heat exchange pipe section 42, and deformation is prone to occur, so the first heat exchange pipe section 41 and the second heat exchange pipe section 42 are connected by the positioning sheet 100, which strengthens the connection reliability of the first heat exchange pipe section 41 and the second heat exchange pipe section 42, enhances the strength of the heat exchange pipe 4, and reduces the risk of damage; moreover, since the heat exchange pipe 4 generally has a circular tube structure and the surface is a curved surface, it is not easy to position, therefore, the heat exchange pipe 4 and the tank body 1 can be kept relatively fixed by connecting the positioning sheet 100 with the tank body 1, so as to prevent the heat exchange pipe 4 from moving in the tank body 1 and affecting heat exchange or even affecting the rotation of the stirring member 5.

[0066] Further, as shown in Figure 2 , Figure 6 ,Figure 8 and Figure 9 As shown in The tank body 1 is provided with a limiting groove 13 at the bottom, and the horizontal section 103 is clamped into the limiting groove 13. Preferably, the first vertical section 101 and the first heat exchange pipe section 41 can be welded, and the second vertical section 102 and the second heat exchange pipe section 42 can be welded to ensure the connection strength. Each limiting groove 13 can be surrounded by two limiting blocks 14. The heat exchange pipe 4 is installed into the tank body 1 from top to bottom, so that the horizontal section 103 is clamped into the limiting groove 13, and the limiting groove 13 limits the horizontal movement of the heat exchange pipe 4 and also limits the rotation of the heat exchange pipe 4. In the technical solution, the reliability of the connection between the positioning sheet 100 and the heat exchange pipe 4 is improved, and the convenience and stability of the connection between the positioning plate and the tank body 1 are improved.

[0067] As a preferred embodiment of the present embodiment, as shown in Figure 2 , Figure 7 and Figure 8 The bottom of the tank body 1 is provided with a lower limiting rib 15, and the upper cover 2 is provided with an upper limiting rib 27. The upper limiting rib 27 and the lower limiting rib 15 limit and fix the heat exchange pipe 4. In specific implementation, the upper limiting rib 27 can be provided with a clamping groove 28 matched with the surface of the heat exchange pipe 4, and the lower limiting rib 15 is stopped at the side of the heat exchange pipe 4. After the heat exchange pipe 4 is installed into the tank body 1 from top to bottom, the lower limiting rib 15 is stopped at the side of the second heat exchange pipe section 42, and then the upper cover 2 is covered on the tank body 1. At this time, the clamping groove 28 of the upper limiting rib 27 is clamped on the top of the heat exchange pipe 4, so as to fix the heat exchange pipe 4 in the tank body 1. In the technical solution, the lower limiting rib 15 and the upper limiting rib 27 stably and reliably support and limit the heat exchange pipe 4, so that the heat exchange pipe 4 and the tank body 1 maintain a relatively fixed state, and the stable heat exchange between the heat exchange medium and the energy storage medium is ensured.

[0068] As a preferred embodiment of the present application, as shown in Figure 2 and Figure 8As shown, the bottom of the tank body 1 is provided with a mounting hole 16 for mounting the heating module 3 and a support table 17 protruding upward relative to the mounting hole 16, the support table 17 supports the stirring part 5 and the heat exchange pipe 4, and a heat insulation gap is arranged between the support table 17 and the heating module 3. In the technical solution, the support table 17 supports the stirring part 5 and the heat exchange pipe 4, and a heat insulation gap is arranged between the support table 17 and the heating module 3, so that the stirring part 5 and the heat exchange pipe 4 are away from the heating surface of the heating module 3, so as to prevent the temperature of the stirring part 5 and the heat exchange pipe 4 from being too high and affecting the service life. Specifically, the limiting block 14 for forming the limiting clamping groove 13 and the convex point 12 for supporting the stirring rod 51 can be arranged on the limiting groove. In order to ensure that the heating module 3 is in contact with the energy storage medium for heating, the support table 17 can be designed as a cross-shaped structure as shown in the figure, or other suitable structures can be arranged.

[0069] The places not described in the application can be realized by using or referring to the existing technology.

[0070] Each embodiment in the specification is described in a progressive manner, and the same and similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0071] The above is only an embodiment of the application and is not used to limit the application. Those skilled in the art can make various changes and modifications to the application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the scope of the claims of the application.

Claims

1. A heat exchange energy storage device, characterized by, The heat exchange energy storage device comprises a tank body, an upper cover, a heating module, a heat exchange pipe and a stirring member, the tank body is used for storing energy storage medium, the upper cover covers the tank body, the heating module is used for heating the energy storage medium in the tank body, the heat exchange pipe is arranged in the tank body and is used for flowing heat exchange medium, and the heat exchange medium and the energy storage medium realize heat exchange through the heat exchange pipe, and the stirring member can rotate to stir the energy storage medium in the tank body.

2. The heat exchange energy storage device according to claim 1, wherein the stirring member comprises a stirring rod and an impeller fixed to the stirring rod, and the impeller comprises a plurality of blades uniformly distributed in the circumferential direction.

3. The heat exchange energy storage device according to claim 2, wherein the stirring rod is vertically arranged in the tank body, a plurality of the impellers are arranged in the axial direction of the stirring rod, and the blades are arranged in an inclined manner relative to the vertical direction.

4. The heat exchange energy storage device according to claim 2, wherein the tank body is provided with a limiting pin shaft at the bottom, the lower end of the stirring rod is provided with a limiting rotating hole matched with the limiting pin shaft in rotation, the heat exchange energy storage device further comprises a driving motor, the upper cover is provided with an avoiding hole, the upper end of the stirring rod is arranged to pass through the avoiding hole and is connected with the output shaft of the driving motor.

5. The heat exchange energy storage device according to claim 4, wherein the tank body is provided with a plurality of convex points at the bottom, the convex points are arranged around the limiting pin shaft, and the lower end of the stirring rod is abutted with the convex points.

6. The heat exchange energy storage device according to claim 1, wherein the heat exchange pipe comprises a first heat exchange pipe section and a second heat exchange pipe section which are integrally formed, the first heat exchange pipe section extends in a spiral manner along the vertical direction and is arranged around the stirring member, the second heat exchange pipe section extends in a spiral manner along the vertical direction and is arranged around the first heat exchange pipe section, one of the first heat exchange pipe section and the second heat exchange pipe section is provided with a water inlet extending outside the tank body, and the other is provided with a water outlet extending outside the tank body.

7. The heat exchange energy storage device according to claim 6, wherein the heat exchange energy storage device further comprises a positioning sheet, the positioning sheet is connected with the first heat exchange pipe section and the second heat exchange pipe section, and the positioning sheet is connected with the tank body to limit the heat exchange pipe.

8. The heat exchange energy storage device according to claim 7, wherein a plurality of the positioning sheets are uniformly distributed in the circumferential direction, the positioning sheet comprises a first vertical section, a second vertical section and a horizontal section, the first vertical section is connected with the first heat exchange pipe section, the second vertical section is connected with the second heat exchange pipe section, and the horizontal section is arranged below the heat exchange pipe and is connected with the first vertical section and the second vertical section at two ends respectively; the tank body is provided with a limiting clamping groove at the bottom, and the horizontal section is clamped into the limiting clamping groove.

9. The heat exchange energy storage device according to claim 6, wherein the bottom of the tank body is provided with a lower limiting rib, the upper cover is provided with an upper limiting rib, and the upper limiting rib and the lower limiting rib limit and fix the heat exchange pipe.

10. The heat exchange energy storage device according to any one of claims 1-9, wherein The bottom of the tank body is provided with a mounting hole for mounting the heating module and a support table protruding upward relative to the mounting hole, the support table supporting the stirring piece and the heat exchange pipe, and a heat insulation gap being arranged between the support table and the heating module.

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