Heat exchange and energy storage device and heat purification all-in-one machine

Abstract

The heat exchange and energy storage device comprises a tank body, an upper cover, a heating module, an outer heat exchange pipe, an inner heat exchange pipe and a circulating pump, the tank body is used for storing an energy storage medium, the tank body is covered with the upper cover, the heating module is used for heating the energy storage medium in the tank body, and the outer heat exchange pipe and the inner heat exchange pipe are connected through the circulating pump. The outer heat exchange tube and the inner heat exchange tube are arranged in the tank body, the inner heat exchange tube is nested in the outer heat exchange tube and is used for allowing a heat exchange medium to flow, and an energy storage medium runner is formed between the inner heat exchange tube and the outer heat exchange tube; and the tank body, the energy storage medium runner and the circulating pump form a circulating path for circularly flowing the energy storage medium, so that heat exchange between the heat exchange medium flowing in the inner heat exchange pipe and the energy storage medium flowing in the energy storage medium runner is realized. Dynamic heat exchange between a heat exchange medium and an energy storage medium is achieved through the heat exchange and energy storage device, the heat exchange efficiency 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 energy storage device and a water purifying and heating integrated machine. BACKGROUND

[0002] The water purifying and heating integrated 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 water purifying and heating integrated machine includes a filter core and an instant heater. The working principle is that the filter core filters tap water to produce purified water which is directly output or heated by the instant heater and then output, so as to realize the function of outputting normal temperature water or hot water after connecting to the water outlet nozzle. The traditional water purifying and heating integrated 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, and the water supply is small.

[0003] To improve the above problems, the water purifying and heating integrated machine with a heat exchange energy storage device has appeared. The heat exchange 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 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 level. As the normal temperature water is heated, the energy storage medium near the heat exchange pipe is cooled, and the heat conduction of the energy storage medium to the normal temperature water gradually slows down, so that 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 increases a little. CONTENT OF THE UTILITY MODEL

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

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

[0006] The heat exchange energy storage device comprises a tank body, an upper cover, a heating module, an outer heat exchange pipe, an inner heat exchange pipe and a circulating pump, 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 outer heat exchange pipe and the inner heat exchange pipe are arranged in the tank body, the inner heat exchange pipe is nested in the outer heat exchange pipe and is used for flowing heat exchange medium, and the inner heat exchange pipe and the outer heat exchange pipe form an energy storage medium flow channel; the tank body, the energy storage medium flow channel and the circulating pump form a circulating path of circulating energy storage medium, so that the heat exchange medium flowing in the inner heat exchange pipe and the energy storage medium flowing in the energy storage medium flow channel are heat exchanged.

[0007] In the technical solution, the circulating pump is started in the process of flowing heat exchange medium, the high-temperature energy storage medium after heating is circulated in the tank body, the energy storage medium flow channel and the circulating pump by the pumping action of the circulating pump, the heat exchange medium in the inner heat exchange pipe in the flowing state is heat exchanged with the energy storage medium in the energy storage medium flow channel in the flowing state, and dynamic heat exchange is realized. Therefore, compared with heat exchange between heat exchange medium and static energy storage medium, the heat exchange efficiency of heat exchange medium and energy storage medium is effectively improved by dynamic heat exchange. Through heat exchange, the heat exchange medium can obtain a large temperature rise in a short time. In addition, since the outer heat exchange pipe and the inner heat exchange pipe are arranged in the tank body, the heat of the high-temperature energy storage medium in the tank body is conducted to the heat exchange medium through the outer heat exchange pipe and the inner heat exchange pipe. Therefore, the high-temperature energy storage medium in the tank body and the high-temperature energy storage medium in the energy storage medium flow channel together conduct heat to the heat exchange medium, further improving the heat exchange efficiency and the temperature of the heat exchange medium after heat exchange. When the heat exchange energy storage device is applied to a net heat integrated machine, the normal-temperature water filtered by a filter element can flow through the inner heat exchange pipe towards the instant heating body as heat exchange medium, and is heat exchanged with the high-temperature energy storage medium flowing in the energy storage medium flow channel in the flowing process. The normal-temperature water is preheated and greatly heated in a short time. Only a short time is needed to heat in the instant heating body to heat to a high temperature, so that the instant heating body quickly heats water, and the water output and the water temperature are improved.

[0008] One end of the inner heat exchange pipe is a heat exchange medium inlet end, the other end is a heat exchange medium outlet end, the energy storage medium flow channel has an energy storage medium inlet end communicating with the tank body and an energy storage medium outlet end communicating with the circulating pump, the energy storage medium inlet end is arranged close to the heat exchange medium outlet end, and the energy storage medium outlet end is arranged close to the heat exchange medium inlet end, so that the flowing direction of the energy storage medium in the energy storage medium flow channel is opposite to the flowing direction of the heat exchange medium in the inner heat exchange pipe.

[0009] In the technical solution, the flow direction of the energy storage medium in the energy storage medium flow channel is opposite to the flow direction of the heat exchange medium in the inner heat exchange pipe, thereby forming reverse flow heat exchange between the energy storage medium and the heat exchange medium, and the heat of the energy storage medium flowing through the energy storage medium flow channel is conducted to the heat exchange medium as much as possible, so that the heat exchange is more sufficient, and the heat exchange efficiency and the temperature of the heat exchange medium after heat exchange are improved.

[0010] The heat exchange and energy storage device comprises a three-way connector, the three-way connector is provided with a first waterway interface, a second waterway interface and a third waterway interface, the first waterway interface is sealingly connected with the end of the outer heat exchange pipe, the inner heat exchange pipe is inserted into the three-way connector from the first waterway interface and flows the heat exchange medium through the second waterway interface, and the third waterway interface is sealingly connected with the water inlet end of the circulating pump, so that the energy storage medium in the energy storage medium flow channel enters the circulating pump through the first waterway interface and the third waterway interface.

[0011] In the technical solution, the three-way connector can help the inner heat exchange pipe to flow the heat exchange medium without being interfered by the energy storage medium, and also serves as an intermediate structure for connecting the energy storage medium flow channel and the water inlet end of the circulating pump, thereby preventing the heat exchange medium from leaking into the tank body and preventing the energy storage medium from entering the inner heat exchange pipe. In addition, the energy storage medium flowing out of the energy storage medium flow channel towards the circulating pump is cooled after heat exchange with the heat exchange medium, and has a lower temperature, so that the circulating pump is not overheated and damaged, and the service life of the circulating pump is improved.

[0012] The heat exchange and energy storage device comprises a connecting pipe and a two-way adapter, one end of the connecting pipe extends outside the tank body, the other end of the connecting pipe is sealingly connected with one end of the two-way adapter, the other end of the two-way adapter is inserted into the second waterway interface and connected with the inner heat exchange pipe, so that the inner heat exchange pipe flows the heat exchange medium through the two-way adapter and the connecting pipe, and the end of the inner heat exchange pipe away from the two-way adapter extends outside the tank body.

[0013] In the technical solution, the two-way adapter connects the connecting pipe and the inner heat exchange pipe, so that the heat exchange medium enters from one of the connecting pipe and the inner heat exchange pipe and flows out from the other one. The two-way adapter and the inner heat exchange pipe are connected in the three-way connector, and the energy storage medium entering the three-way connector is isolated, and the second waterway interface of the three-way connector can be closed by the two-way adapter, so that the energy storage medium in the energy storage medium flow channel can only be discharged from the third waterway interface and enter the circulating pump after entering the three-way connector through the first waterway interface, thereby improving the reliability of the circulation of the energy storage medium between the energy storage medium flow channel, the circulating pump and the tank body.

[0014] The bottom wall of the tank body is provided with an energy storage medium circulation inlet and an energy storage medium circulation outlet, the third waterway interface is connected with the water inlet end of the circulation pump in the energy storage medium circulation outlet, the water outlet end of the circulation pump is connected with the energy storage medium circulation inlet to communicate with the tank body, and the energy storage medium flow channel communicates with the tank body at a position higher than the energy storage medium circulation inlet.

[0015] In the technical solution, the energy storage medium circulation inlet and the energy storage medium circulation outlet are both located on the bottom wall of the tank body, the energy storage medium in the energy storage medium flow channel is cooled by heat exchange and then enters the circulation pump at the bottom of the tank body, and then flows back to the tank body from the bottom of the tank body. The end of the energy storage medium flow channel communicating with the tank body is used for the energy storage medium in the tank body to enter the energy storage medium flow channel, and the end is higher than the energy storage medium circulation inlet, so that the energy storage medium entering the energy storage medium flow channel from the tank body is high-temperature energy storage medium distributed at the upper position of the tank body, and the low-temperature energy storage medium flowing back to the tank body is prevented from entering the energy storage medium flow channel from the tank body, thereby ensuring effective heat exchange between the heat exchange medium and the energy storage medium and improving the heat exchange efficiency.

[0016] The tank body is provided with a water blocking part located directly above the energy storage medium circulation inlet, so that the energy storage medium discharged by the circulation pump into the tank body collides with the water blocking part to change the flow direction.

[0017] In the technical solution, the cooled energy storage medium flowing back to the tank body is blocked by the water blocking part to change the flow direction, so that the cooled energy storage medium is prevented from directly rushing to the top of the tank body and being sucked into the energy storage medium flow channel again when flowing back into the tank body, thereby ensuring that as much as possible of the energy storage medium entering the energy storage medium flow channel from the tank body is high-temperature energy storage medium distributed at the upper position of the tank body.

[0018] The upper cover is provided with a high water level detection member for identifying and limiting the highest liquid level in the tank body, and the part of the energy storage medium flow channel communicating with the tank body is lower than the highest liquid level; and / or, the bottom wall of the tank body is provided with a temperature detection member for detecting the temperature of the energy storage medium.

[0019] In the technical solution, the part of the energy storage medium flow channel communicating with the tank body is lower than the highest liquid level, and when the high water level detection member can identify that the liquid level in the tank body remains at the highest liquid level, it is ensured that the position of the energy storage medium flow channel communicating with the tank body is always submerged below the liquid surface of the energy storage medium, thereby ensuring that the energy storage medium in the tank body can be sucked into the energy storage medium flow channel to participate in heat exchange. The temperature detection member can monitor the temperature of the energy storage medium, and when the energy storage medium is lower than a preset temperature, the heating module is controlled to heat the energy storage medium.

[0020] The outer heat exchange pipe and the inner heat exchange pipe extend spirally in the vertical direction, the outer heat exchange pipe is provided with a protruding rib distributed in the circumferential direction, and the protruding rib limits the inner heat exchange pipe to the center of the outer heat exchange pipe.

[0021] In the technical solution, the outer heat exchange pipe and the inner heat exchange pipe extend spirally in the vertical direction, which can extend the length as much as possible in the limited space in the tank body, and further extend the flow path of the heat exchange medium in the inner heat exchange pipe and the flow path of the energy storage medium in the energy storage medium flow channel, 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 can be improved. The protruding ribs limit the inner heat exchange pipe to the center of the outer heat exchange pipe, so that the energy storage medium flow channel gap is uniform, and the energy storage medium flows stably in the energy storage medium flow channel, so as to improve the heat exchange efficiency.

[0022] The bottom wall of the tank body is provided with a lower supporting rib and a lower limiting rib, the lower supporting rib supports the outer heat exchange pipe upward, and the limiting rib stops the side of the outer heat exchange pipe; and / or the upper cover is provided with upper limiting ribs distributed in the circumferential direction, the upper limiting ribs are provided with limiting clamping grooves, and the limiting clamping grooves limit the outer heat exchange pipe.

[0023] In the technical solution, the lower supporting rib, the lower limiting rib and the upper limiting rib form stable and reliable support and limiting for the outer heat exchange pipe, so that the outer heat exchange pipe and the tank body remain in a relatively fixed state, and stable heat exchange of the heat exchange medium and the energy storage medium is ensured.

[0024] A net heat all-in-one machine disclosed in the application includes a filter core, an instant heater and a heat exchange and energy storage device as described above. The pure water outlet of the filter core is connected to the tank body through a water supplement valve and connected to the inner heat exchange pipe through a water pump. The inner heat exchange pipe is connected to the instant heater.

[0025] With the above technical solutions, the technical effects achieved by the application are as follows: in the process of flowing of the heat exchange medium, the circulating pump is started to enable the high-temperature energy storage medium after heating to flow in the tank body, the energy storage medium flow channel and the circulating pump by the pumping action of the circulating pump, the heat exchange medium in the inner heat exchange pipe exchanges heat with the energy storage medium in the energy storage medium flow channel in a flowing state, and dynamic heat exchange is realized. Therefore, compared with 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 of 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. In addition, since the outer heat exchange pipe and the inner heat exchange pipe are arranged in the tank body, the heat of the high-temperature energy storage medium in the tank body is conducted to the heat exchange medium through the outer heat exchange pipe and the inner heat exchange pipe. Therefore, the high-temperature energy storage medium in the tank body and the high-temperature energy storage medium in the energy storage medium flow channel together conduct heat to the heat exchange medium, further improving the heat exchange efficiency and the temperature of the heat exchange medium after heat exchange. When the heat exchange and energy storage device is applied to the net heat integrated machine, the normal-temperature water filtered by the filter element can flow towards the instant heating body through the inner heat exchange pipe as the heat exchange medium, and exchanges heat with the high-temperature energy storage medium flowing in the energy storage medium flow channel in the flowing process. The normal-temperature water is preheated and greatly heated in a short time. Only a short time is needed to heat in the instant heating body to heat 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

[0026] 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 application without imposing undue limitation thereon. In the drawings:

[0027] Figure 1 An explosion view of the heat exchange and energy storage device provided by the embodiment of the application Figure 1 ;

[0028] Figure 2 An explosion view of the heat exchange and energy storage device provided by the embodiment of the application Figure 2 ;

[0029] Figure 3 A sectional view of the heat exchange and energy storage device provided by the embodiment of the application Figure 1 ;

[0030] Figure 4 An enlarged view of structure A in FIG. 1; Figure 3

[0031] Figure 5 A sectional view of the heat exchange and energy storage device provided by the embodiment of the application Figure 2 ;

[0032] Figure 6 A sectional view of the tank body provided by the embodiment of the application;​

[0033] Figure 7 Structure diagram of the upper cover provided by the embodiment of the present application;

[0034] Figure 8 Water path diagram of the net heat all-in-one machine provided by the embodiment of the present application.

[0035] Component and reference numeral list:

[0036] 1 tank body, 11 module mounting hole, 12 energy storage medium circulation inlet, 13 energy storage medium circulation outlet, 14 water blocking part, 15 lower support rib, 16 lower limiting rib, 2 upper cover, 21 first through hole, 22 second through hole, 23 upper limiting rib, 231 limiting clamping groove, 24 water replenishing port, 25 exhaust port, 3 heating module, 4 outer heat exchange pipe, 41 convex rib, 5 inner heat exchange pipe, 51 heat exchange medium inlet end, 52 heat exchange medium outlet end, 6 circulating pump, 61 water inlet end, 62 water outlet end, 7 energy storage medium flow channel, 71 energy storage medium inlet end, 72 energy storage medium outlet end, 8 support, 9 sealing body, 100 three-way connecting piece, 101 first water path interface, 102 second water path interface, 103 third water path interface, 200 connecting pipe, 300 two-way adapter, 400 high water level detection piece, 500 temperature detection piece, 600 filter element, 700 instant heating body, 800 water suction pump, 900 water replenishing valve, 10 water inlet valve, 20 booster pump, 30 waste water valve, 40 hot water outlet valve, 50 normal temperature water outlet valve, 60 hot water pump. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail in an exemplary manner with reference to the accompanying drawings.

[0038] 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 implemented in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0039] In addition, in the description of the present application, it should 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 therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In this application, unless specifically defined otherwise, the terms "mount", "connect", "connection", "fixed", and the like, should be construed broadly and can be either direct or indirect, fixed or removable, mechanical or electrical, and the like. For example, the terms "connected" and "connection" can mean direct connection, indirect connection, or connection through an intermediate medium, and can mean the internal communication between two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In this application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application. In this 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 appropriate manner in any one or more embodiments or examples.

[0042] In the embodiments of the present application, a heat exchange energy storage device and a net heat integrated machine are provided. In order to facilitate explanation 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.

[0043] Referring to Figures 1 to 7 As shown in the drawings, the heat exchange energy storage device provided by the present application comprises a tank body 1, an upper cover 2, a heating module 3, an outer heat exchange pipe 4, an inner heat exchange pipe 5 and a circulating pump 6. The tank body 1 is used to store energy storage medium. The upper cover 2 covers the tank body 1. The heating module 3 is used to heat the energy storage medium in the tank body 1. The outer heat exchange pipe 4 and the inner heat exchange pipe 5 are arranged in the tank body 1. The inner heat exchange pipe 5 is nested in the outer heat exchange pipe 4 and is used to flow heat exchange medium. The inner heat exchange pipe 5 and the outer heat exchange pipe 4 form an energy storage medium flow channel 7. The tank body 1, the energy storage medium flow channel 7 and the circulating pump 6 form a circulating path of circulating energy storage medium, so that the heat exchange medium flowing in the inner heat exchange pipe 5 and the energy storage medium flowing in the energy storage medium flow channel 7 can realize heat exchange.

[0044] Specifically, the tank body 1 and the top cover 2 can be assembled together using detachable connection methods such as screws or snap-fits. After assembly, the outer heat exchange tube 4 is clamped to prevent displacement of the outer heat exchange tube 4 and the inner heat exchange tube 5. Figure 1 , Figure 5 and Figure 6 As shown, the bottom wall of the tank 1 can be provided with a module mounting hole 11 for installing the heating module 3. The heating module 3 is confined within the module mounting hole 11 by a bracket 8. The bracket 8 is screwed to the tank 1. A sealing body 9 is provided between the heating module 3 and the tank 1 to ensure the sealing of the module mounting hole 11. The energy storage medium can be water or other liquid media with good energy storage performance.

[0045] The tank 1, the energy storage medium flow channel 7, and the circulation pump 6 form a circulation path for the circulating energy storage medium. Specifically, the energy storage medium flow channel 7 is connected to the inlet 61 of the circulation pump 6, and the outlet 62 of the circulation pump 6 is connected to the tank 1. When the circulation pump 6 is operating, the energy storage medium in the tank 1 is drawn into the energy storage medium flow channel 7, then enters the circulation pump 6 through the energy storage medium flow channel 7, and finally flows back to the tank 1 from the circulation pump 6. Alternatively, as an alternative, both ends of the energy storage medium flow channel 7 can be connected to the tank 1 and the outlet of the circulation pump 6, respectively, and the inlet of the circulation pump 6 can be connected to the tank 1. When the circulation pump 6 is operating, the energy storage medium in the tank 1 is drawn into the circulation pump 6, then enters the energy storage medium flow channel 7 through the circulation pump 6, and finally flows back to the tank 1 from the energy storage medium flow channel 7.

[0046] In the technical solution, the inner heat exchange pipe 5 can start the circulating pump 6 in the process of flowing heat exchange medium, so that the high-temperature energy storage medium after heating is circulated in the tank body 1, the energy storage medium flow channel 7 and the circulating pump 6 by the pumping action of the circulating pump 6. The heat exchange medium in the inner heat exchange pipe 5 exchanges heat with the energy storage medium in the energy storage medium flow channel 7 in a flowing state, so as to realize dynamic heat exchange. 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 of the heat exchange medium and the energy storage medium. Through heat exchange, the heat exchange medium can obtain a large temperature rise in a short time. In addition, since the outer heat exchange pipe 4 and the inner heat exchange pipe 5 are arranged in the tank body 1, the heat of the high-temperature energy storage medium in the tank body 1 is conducted to the heat exchange medium through the outer heat exchange pipe 4 and the inner heat exchange pipe 5. Therefore, the high-temperature energy storage medium in the tank body 1 and the high-temperature energy storage medium in the energy storage medium flow channel 7 together conduct heat to the heat exchange medium, further improving the heat exchange efficiency and the temperature of the heat exchange medium after heat exchange. 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 towards the instant heating body through the inner heat exchange pipe 5. The normal-temperature water is preheated and greatly heated in a short time by exchanging heat with the high-temperature energy storage medium flowing in the energy storage medium flow channel 7. Only a short time is needed to heat the instant heating body to a high temperature, so that the instant heating body can quickly output hot water, thereby improving the water output and water temperature.

[0047] Since the inner heat exchange pipe 5 is nested in the outer heat exchange pipe 4, the flowing direction of the heat exchange medium in the inner heat exchange pipe 5 is basically parallel to the flowing direction of the energy storage medium in the energy storage medium flow channel 7. Therefore, the heat exchange medium and the energy storage medium can flow in the same direction or in the opposite direction. In a preferred embodiment, as shown in Figure 2 and Figure 5 the one end of the inner heat exchange pipe 5 is a heat exchange medium inlet end 51, and the other end is a heat exchange medium outlet end 52. The heat exchange medium enters the inner heat exchange pipe 5 from the heat exchange medium inlet end 51 and then is discharged from the heat exchange medium outlet end 52. The energy storage medium flow channel 7 has an energy storage medium inlet end 71 communicating with the tank body 1 and an energy storage medium outlet end 72 communicating with the circulating pump 6. The energy storage medium enters the energy storage medium flow channel 7 from the energy storage medium inlet end 71 and then is discharged from the energy storage medium outlet end 72. The energy storage medium inlet end 71 is arranged close to the heat exchange medium outlet end 52, and the energy storage medium outlet end 72 is arranged close to the heat exchange medium inlet end 51. The flowing direction of the energy storage medium in the energy storage medium flow channel 7 is opposite to the flowing direction of the heat exchange medium in the inner heat exchange pipe 5, so as to form reverse flow heat exchange between the energy storage medium and the heat exchange medium. As much as possible, the heat of the energy storage medium flowing through the energy storage medium flow channel 7 is conducted to the heat exchange medium, the heat exchange is more sufficient, and the heat exchange efficiency and the temperature of the heat exchange medium after heat exchange are improved.

[0048] As a preferred embodiment of the present application, as shown inFigures 1 to 4 As shown, the heat exchange energy storage device comprises a tee connector 100, the tee connector 100 is provided with a first waterway interface 101, a second waterway interface 102 and a third waterway interface 103, the first waterway interface 101 is sealingly connected with the end of the outer heat exchange pipe 4, the inner heat exchange pipe 5 is inserted into the tee connector 100 from the first waterway interface 101 and flows the heat exchange medium by means of the second waterway interface 102, the third waterway interface 103 is sealingly connected with the water inlet end 61 of the circulating pump 6, so that the energy storage medium in the energy storage medium flow channel 7 enters the circulating pump 6 through the first waterway interface 101 and the third waterway interface 103. In the technical solution, the end of the outer heat exchange pipe 4 sealingly connected with the first waterway interface 101 constitutes the energy storage medium outlet end 72 of the energy storage medium flow channel 7, the other end of the outer heat exchange pipe 4 is exposed in the energy storage medium in the tank body 1, under the working state of the circulating pump 6, the energy storage medium in the tank body 1 is sucked into the energy storage medium flow channel 7, and then enters the tee connector 100 through the energy storage medium flow channel 7, the first waterway interface 101, and then enters the circulating pump 6 through the third waterway interface 103, and finally flows back to the tank body 1 through the circulating pump 6. One end of the inner heat exchange pipe 5 is inserted into the tee connector 100 from the first waterway interface 101, and flows the heat exchange medium by means of the second waterway interface 102, the end of the inner heat exchange pipe 5 can directly pass out from the second waterway interface 102, or can be connected with other components at the second waterway interface 102, thereby realizing the circulation of the heat exchange medium. The tee connector 100 can help the inner heat exchange pipe 5 to flow the heat exchange medium without being interfered by the energy storage medium, and on the other hand, the tee connector 100 also becomes an intermediate structure for connecting the energy storage medium flow channel 7 with the water inlet end 61 of the circulating pump 6, preventing the heat exchange medium from leaking into the tank body 1, and also preventing the energy storage medium from entering the inner heat exchange pipe 5. In addition, the energy storage medium flowing out from the energy storage medium flow channel 7 towards the circulating pump 6 is cooled after heat exchange with the heat exchange medium, and has a lower temperature, which will not cause overheating damage to the circulating pump 6, and helps to improve the service life of the circulating pump 6.

[0049] As a preferred embodiment, as shown in Figure 2 、 Figure 3 and Figure 4As shown, the heat exchange energy storage device comprises a connecting pipe 200 and a two-way connector 300, one end of the connecting pipe 200 extends outside the tank body 1, the other end of the connecting pipe 200 is sealingly connected with one end of the two-way connector 300, the other end of the two-way connector 300 is inserted into the second waterway interface 102 and is connected in communication with the inner heat exchange pipe 5, so that the inner heat exchange pipe 5 flows through the two-way connector 300 and the connecting pipe 200 to exchange heat medium, and the end of the inner heat exchange pipe 5 away from the two-way connector 300 extends outside the tank body 1. In this technical solution, the two-way connector 300 connects the connecting pipe 200 and the inner heat exchange pipe 5, so that the heat medium enters from one of the connecting pipe 200 and the inner heat exchange pipe 5 and flows out from the other. In this embodiment, when the circulating pump 6 is in operation, the energy storage medium in the tank body 1 enters the circulating pump 6 through the energy storage medium flow channel 7 and the three-way connector 100 in turn, so as to realize the opposite flow direction of the energy storage medium in the energy storage medium flow channel 7 and the heat medium in the inner heat exchange pipe 5. Therefore, the heat medium needs to enter through the connecting pipe 200, then enter the inner heat exchange pipe 5 through the two-way connector, and finally flow out through the inner heat exchange pipe 5. Specifically, as shown in Figures 1 to 3 and Figure 7 As shown, the heat exchange energy storage device comprises a connecting pipe 200 and a two-way connector 300, one end of the connecting pipe 200 extends outside the tank body 1, the other end of the connecting pipe 200 is sealingly connected with one end of the two-way connector 300, the other end of the two-way connector 300 is inserted into the second waterway interface 102 and is connected in communication with the inner heat exchange pipe 5, so that the inner heat exchange pipe 5 flows through the two-way connector 300 and the connecting pipe 200 to exchange heat medium, and the end of the inner heat exchange pipe 5 away from the two-way connector 300 extends outside the tank body 1. In this technical solution, the two-way connector 300 connects the connecting pipe 200 and the inner heat exchange pipe 5, so that the heat medium enters from one of the connecting pipe 200 and the inner heat exchange pipe 5 and flows out from the other. In this embodiment, when the circulating pump 6 is in operation, the energy storage medium in the tank body 1 enters the circulating pump 6 through the energy storage medium flow channel 7 and the three-way connector 100 in turn, so as to realize the opposite flow direction of the energy storage medium in the energy storage medium flow channel 7 and the heat medium in the inner heat exchange pipe 5. Therefore, the heat medium needs to enter through the connecting pipe 200, then enter the inner heat exchange pipe 5 through the two-way connector, and finally flow out through the inner heat exchange pipe 5. Specifically, as shown in

[0050] As a preferred embodiment, as shown in Figure 4 and Figure 6As shown, the bottom wall of the tank body 1 is provided with an energy storage medium circulation inlet 12 and an energy storage medium circulation outlet 13, the third waterway interface 103 is connected with the water inlet end 61 of the circulation pump 6 in the energy storage medium circulation outlet 13, the water outlet end 62 of the circulation pump 6 is connected with the energy storage medium circulation inlet 12 to communicate with the tank body 1, and the energy storage medium flow channel 7 communicates with the tank body 1 at a position higher than the energy storage medium circulation inlet 12. In the technical solution, since the energy storage medium circulation inlet 12 and the energy storage medium circulation outlet 13 are both located on the bottom wall of the tank body 1, the energy storage medium in the tank body 1 enters the energy storage medium flow channel 7 at the top of the outer heat exchange pipe 4, the energy storage medium in the energy storage medium flow channel 7 is cooled by heat exchange and then enters the circulation pump 6 at the bottom of the tank body 1, and then flows back to the tank body 1 from the bottom of the tank body 1. The end of the energy storage medium flow channel 7 communicating with the tank body 1 is used for the energy storage medium in the tank body 1 to enter the energy storage medium flow channel 7, and this end is higher than the energy storage medium circulation inlet 12. Since the density of high-temperature energy storage medium is generally lower than that of normal-temperature energy storage medium, the high-temperature energy storage medium is mostly located at the upper part of the tank body 1, and the normal-temperature energy storage medium is mostly located at the lower part of the tank body 1, so that the energy storage medium entering the energy storage medium flow channel 7 from the tank body 1 is the high-temperature energy storage medium distributed at the upper part of the tank body 1, and the low-temperature energy storage medium flowing back to the tank body 1 is prevented from entering the energy storage medium flow channel 7 from the tank body 1 as much as possible, thereby ensuring effective heat exchange between the heat exchange medium and the energy storage medium and improving the heat exchange efficiency.

[0051] In a preferred example, as shown in Figure 4 and Figure 6 As shown, the tank body 1 is provided with a water blocking part 14 located directly above the energy storage medium circulation inlet 12, so that the energy storage medium discharged by the circulation pump 6 into the tank body 1 collides with the water blocking part 14 to change the flow direction. In the technical solution, the cooled energy storage medium flowing back to the tank body 1 is blocked by the water blocking part 14 to change the flow direction, so that the direction of the cooled energy storage medium flowing back to the tank body 1 is turned from the original vertical upward direction, thereby preventing the cooled energy storage medium from being sucked into the energy storage medium flow channel 7 again when directly colliding with the top of the tank body 1, so as to ensure that as much as possible of the energy storage medium entering the energy storage medium flow channel 7 from the tank body 1 is the high-temperature energy storage medium distributed at the upper part of the tank body 1.

[0052] In a preferred example, as shown in Figure 1 and Figure 5As shown, the upper cover 2 is provided with a high water level detection member 400 for identifying and limiting the maximum liquid level in the tank body 1, and the part where the energy storage medium flow channel 7 communicates with the tank body 1 (the energy storage medium inlet end 71 in the foregoing embodiment) is lower than the maximum liquid level. The high water level detection member 400 can be a water level sensor. When the high water level detection member 400 is triggered, it means that the liquid level in the tank body 1 reaches the maximum liquid level, and since the part where the energy storage medium flow channel 7 communicates with the tank body 1 is lower than the maximum liquid level, it is ensured that the position where the energy storage medium flow channel 7 communicates with the tank body 1 is always submerged below the liquid level of the energy storage medium, and it is ensured that the energy storage medium in the tank body 1 can be sucked into the energy storage medium flow channel 7 to participate in heat exchange under the working state of the circulating pump 6.

[0053] In a preferred example, as shown in Figure 1 and Figure 5 , the temperature detection member 500 can monitor the temperature of the energy storage medium, and when the energy storage medium is lower than the preset temperature, the heating module 3 can heat it. The temperature detection member 500 can be a temperature sensor. Specifically, the temperature detection member 500 can be installed near the energy storage medium circulation inlet 12. When the heating module 3 heats the energy storage medium in the tank body 1, the temperature detection member 500 detects the temperature of the energy storage medium, and when the energy storage medium circulates and exchanges heat, the temperature detection member 500 can also detect the temperature of the energy storage medium after heat exchange, so as to determine the consumption of the energy of the energy storage medium. For example, if the temperature of the energy storage medium drops sharply during heat exchange, it means that the energy of the energy storage medium is almost exhausted, and the flow rate of the heat exchange medium in the inner heat exchange pipe 5 needs to be reduced to ensure the stability of the outlet water temperature of the heat exchange medium.

[0054] As a preferred embodiment of the present application, as shown in Figure 2 , Figure 4 and Figure 5 , the outer heat exchange pipe 4 and the inner heat exchange pipe 5 extend spirally in the vertical direction, which can extend the length as much as possible in the limited space in the tank body 1, and further extend the flow path of the heat exchange medium in the inner heat exchange pipe 5 and the flow path of the energy storage medium in the energy storage medium flow channel 7, so as to fully exchange heat between the heat exchange medium and the energy storage medium, and improve the temperature of the heat exchange medium after heat exchange; the outer heat exchange pipe 4 is provided with a circumferentially distributed protruding rib 41, which limits the inner heat exchange pipe 5 to the center protruding rib 41 of the outer heat exchange pipe 4, so as to make the gap of the energy storage medium flow channel 7 uniform and the energy storage medium flow stably in the energy storage medium flow channel 7, thereby improving the heat exchange efficiency.

[0055] In a preferred embodiment, as shown in Figure 5 and Figure 6As shown, the bottom wall of the tank body 1 is provided with a lower support rib 15 and a lower limiting rib 16. The lower support rib 15 supports the outer heat exchange pipe 4 upward, and the limiting rib stops the side of the outer heat exchange pipe 4. Under the support and lifting effect of the lower support rib 15, a gap can be formed between the outer heat exchange pipe 4 and the lower heating module 3, so as to prevent the outer heat exchange pipe 4 from directly contacting the heating module 3 and causing damage due to high temperature. A plurality of lower limiting ribs 16 are uniformly distributed in the circumferential direction and stop at the side of the outer heat exchange pipe 4, so as to prevent the outer heat exchange pipe 4 and the inner heat exchange pipe 5 inside from moving along the horizontal plane. In the preferred embodiment, as shown in Figure 5 and Figure 7 As shown, the upper cover 2 is provided with upper limiting ribs 23 distributed in the circumferential direction, and the upper limiting ribs 23 are provided with limiting clamping grooves 231 for limiting the outer heat exchange pipe 4. After the cover body of the upper cover 2 is covered, the limiting clamping grooves 231 are clamped on the top of the outer heat exchange pipe 4, so as to prevent the outer heat exchange pipe 4 and the inner heat exchange pipe 5 inside from moving along the horizontal plane. In the technical solution, the lower support rib 15, the lower limiting rib 16 and the upper limiting rib 23 form stable and reliable support and limiting for the outer heat exchange pipe 4, so as to keep the outer heat exchange pipe 4 and the tank body 1 in a relatively fixed state, and ensure stable heat exchange between the heat exchange medium and the energy storage medium.

[0056] The present application provides a kind of net heat integrated machine, as shown in Figure 8 It includes filter element 600, instant heating body 700 and heat exchange energy storage device as described above, the pure water outlet of the filter element 600 is connected with the tank body 1 through water supplement valve 900, and is connected with the inner heat exchange pipe 5 through water pump 800, and the inner heat exchange pipe 5 is connected with the instant heating body 700. In the technical solution, water inlet valve 10 and booster pump 20 control water inlet, waste water valve 30 controls filter element 600 to discharge waste water, hot water outlet valve 40 controls net heat integrated machine to discharge hot water, and normal temperature water outlet valve 50 controls net heat integrated machine to discharge normal temperature water. The pure water discharged from the pure water outlet of the filter element 600 can enter the tank body 1 through the water supplement valve 900 to become energy storage medium, and the pure water discharged from the pure water outlet of the filter element 600 can also be transported to the instant heating body 700 through the inner heat exchange pipe 5 for heating. Therefore, the pure water in the tank body 1 can be boiled by the heating module 3 in advance, so that the pure water flowing in the inner heat exchange pipe 5 is preheated and heated by the instant heating body 700 after being preheated and heated, the heating time is shortened, and the hot water outlet flow is improved. In addition, the pure water of the filter element 600 can also be directly transported to the instant heating body 700 through the hot water pump 60. For convenient connection, as shown in Figure 1 and Figure 7 The water supplement port 24 connected with the water supplement valve 900 and the exhaust port 25 for discharging steam of the tank body 1 can be arranged on the upper cover 2.

[0057] The places not mentioned in the application can be realized by using or referring to the existing technology.

[0058] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments.

[0059] The above only describes the embodiments of the application and is not intended to limit the application. The application can be variously changed and modified by those skilled in the art. 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, an outer heat exchange pipe, an inner heat exchange pipe and a circulating pump, 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 outer heat exchange pipe and the inner heat exchange pipe are arranged in the tank body, the inner heat exchange pipe is nested in the outer heat exchange pipe and is used for flowing heat exchange medium, and a flow channel of the energy storage medium is formed between the inner heat exchange pipe and the outer heat exchange pipe; the tank body, the flow channel of the energy storage medium and the circulating pump form a circulating path of the circulating flow energy storage medium, so that the heat exchange medium flowing in the inner heat exchange pipe and the energy storage medium flowing in the flow channel of the energy storage medium realize heat exchange.

2. The heat exchange energy storage device according to claim 1, wherein one end of the inner heat exchange pipe is a heat exchange medium inlet end, the other end is a heat exchange medium outlet end, the flow channel of the energy storage medium has an energy storage medium inlet end connected with the tank body and an energy storage medium outlet end connected with the circulating pump, the energy storage medium inlet end is arranged close to the heat exchange medium outlet end, and the energy storage medium outlet end is arranged close to the heat exchange medium inlet end, so that the flowing direction of the energy storage medium in the flow channel of the energy storage medium is opposite to the flowing direction of the heat exchange medium in the inner heat exchange pipe.

3. The heat exchange energy storage device according to claim 1, wherein the heat exchange energy storage device comprises a three-way connector, the three-way connector is provided with a first waterway interface, a second waterway interface and a third waterway interface, the first waterway interface is sealingly connected with the end of the outer heat exchange pipe, the inner heat exchange pipe is inserted into the three-way connector from the first waterway interface and flows heat exchange medium through the second waterway interface, and the third waterway interface is sealingly connected with the water inlet end of the circulating pump, so that the energy storage medium in the flow channel of the energy storage medium enters the circulating pump through the first waterway interface and the third waterway interface.

4. The heat exchange energy storage device according to claim 3, wherein the heat exchange energy storage device comprises a connecting pipe and a two-way adapter, one end of the connecting pipe extends outside the tank body, the other end of the connecting pipe is sealingly connected with one end of the two-way adapter, the other end of the two-way adapter is inserted into the second waterway interface and is connected with the inner heat exchange pipe, so that the inner heat exchange pipe flows heat exchange medium through the two-way adapter and the connecting pipe, and the end of the inner heat exchange pipe away from the two-way adapter extends outside the tank body.

5. The heat exchange energy storage device according to claim 3, wherein the bottom wall of the tank body is provided with an energy storage medium circulating inlet and an energy storage medium circulating outlet, the third waterway interface and the water inlet end of the circulating pump are connected in the energy storage medium circulating outlet, the water outlet end of the circulating pump is connected with the energy storage medium circulating inlet to communicate with the tank body, and the flow channel of the energy storage medium communicates with the tank body at a position higher than the energy storage medium circulating inlet.

6. The heat exchange energy storage device according to claim 5, wherein The tank body is provided with a water blocking part above the energy storage medium circulation inlet, so that the energy storage medium discharged by the circulation pump collides with the water blocking part and changes the flow direction.

7. The heat exchange and energy storage device according to claim 5, characterized in that, The upper cover is provided with a high water level detection member for identifying and limiting the highest liquid level in the tank body, and the part where the energy storage medium flow channel communicates with the tank body is lower than the highest liquid level. And / or, the bottom wall of the tank body is provided with a temperature detection member for detecting the temperature of the energy storage medium.

8. The heat exchange and energy storage device according to claim 1, characterized in that, The outer heat exchange pipe and the inner heat exchange pipe extend spirally in the vertical direction, the outer heat exchange pipe is provided with a convex rib distributed in the circumferential direction, and the convex rib limits the inner heat exchange pipe to the center of the outer heat exchange pipe.

9. The heat exchange and energy storage device according to claim 8, characterized in that, The bottom wall of the tank body is provided with a lower support rib and a lower limiting rib, the lower support rib supports the outer heat exchange pipe upward, and the limiting rib stops the side of the outer heat exchange pipe; And / or, the upper cover is provided with a circumferentially distributed upper limiting rib, the upper limiting rib is provided with a limiting clamping groove, and the limiting clamping groove clamps and limits the outer heat exchange pipe.

10. A water purifying and heating integrated machine comprising a filter cartridge and a heating element, characterized in that, Further comprising the heat exchange and energy storage device according to any one of claims 1 to 9, the pure water outlet of the filter element communicates with the tank body through a water supplement valve, and communicates with the inner heat exchange pipe through a water pumping pump, and the inner heat exchange pipe communicates with the instant heating body.

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