Water heater
By setting heat storage and instant heating bodies in the inner liner of the water heater and adjusting the water temperature through the pipeline system, the problem of waste of heat and single heating scenarios of instant heating bodies is solved, and efficient heat utilization and diversified heating are achieved Scene.
Patent Information
- Application Number
- CN202421211061.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The heat emitted by the instant heating body in existing water heaters is likely to cause the aging of surrounding devices and plastic parts, and a single heating scenario cannot meet the various needs of users.
Design a water heater with built-in heat storage heating body and instant heating body. Preheated water or cold water can be passed into the instant heating body. The water temperature is adjusted through the pipeline system to achieve efficient use of heat and diversified heating. Scene.
The heat utilization rate of instant heating body is improved, heat waste and device damage is avoided, and precise control of the effluent temperature and diversified heating scenarios are achieved.
Smart Images
Figure CN222459805U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot water equipment, in particular to a water heater. Background Art
[0002] In order to improve the heating efficiency of hot water, existing water heaters usually set up instant heating bodies to heat water. The instant heating body will emit a lot of heat during operation, which may easily cause the surrounding components and plastic parts to age and fail. In order to improve the protection of the whole machine, the instant heating body is usually placed on the outside of the whole machine, resulting in a waste of heat emitted by the instant heating body. In addition, in order to prevent the heat emitted by the instant heating body from damaging the surrounding components and plastic parts, if the periphery of the instant heating body is protected, it is easy to cause heat to accumulate in the instant heating body and cause damage to the instant heating body. In addition, the heating scenarios of existing instant heating bodies are relatively single and cannot meet the various needs of users.
[0003] Therefore, a water heater is urgently needed to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a water heater to improve the utilization rate of the heat of the instant heating body, avoid the heat emitted by the instant heating body from damaging the surrounding devices and plastic parts, avoid the heat accumulation in the instant heating body to damage the instant heating body, and make the heating scene of the instant heating body more flexible.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A water heater, comprising:
[0007] An inner tank, wherein the inner tank is used to store water;
[0008] A heat storage heater, the heat storage heater being disposed in the inner container; and
[0009] The instant heating body is arranged in the inner pot, and the preheated water in the inner pot can be passed into the instant heating body or the cold water passed into the inner pot is passed into the instant heating body in advance.
[0010] As an optional solution, the instant heating body is located above the heat storage heating body in the inner tank.
[0011] As an optional solution, the water heater further includes a first pipeline and a second pipeline, the first pipeline and the second pipeline are both connected to the instant heating body, the second pipeline has a port at a free end extending out of the inner tank, and the first pipeline has a port at a free end located in the inner tank;
[0012] When the preheated water in the inner tank can flow into the instant heating body, the first pipeline is a water inlet pipeline, and the second pipeline is a water outlet pipeline;
[0013] When the cold water introduced into the inner tank is introduced into the instant heating body in advance, the first pipeline is the water outlet pipeline, and the second pipeline is the water inlet pipeline.
[0014] As an optional solution, the first pipeline includes a first main pipeline, a first branch pipe and a second branch pipe, the port of the free end of the first branch pipe is located in the inner pot, the port of the free end of the second branch pipe extends out of the inner pot, the first branch pipe and the second branch pipe are both connected to the first main pipeline, and the first main pipeline is connected to the instant heating body;
[0015] When the preheated water in the inner tank can flow into the instant heating body, the first main pipeline is the water inlet main pipeline, the first branch pipe is the preheated water inlet pipe, and the second branch pipe is the cold water inlet pipe;
[0016] When the cold water introduced into the inner tank is pre-introduced into the instant heating body, the first main pipeline is the water outlet main pipeline, the first branch pipe is the preheated water outlet pipe, and the second branch pipe is the hot water outlet pipe.
[0017] As an optional solution, the first pipeline further includes:
[0018] A flow regulating valve, wherein the first branch pipe and the second branch pipe are both connected to the first main pipeline through the flow regulating valve.
[0019] As an optional solution, the port at the free end of the first branch pipe extends toward the top of the inner container.
[0020] As an optional solution, the distance between the port of the free end of the first branch pipe and the top wall of the inner container is 3 mm to 5 mm.
[0021] As an optional solution, the heat storage heater is located at the bottom of the first branch pipe.
[0022] As an optional solution, the second branch pipe includes a connecting pipe, a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are both connected to the connecting pipe, the first branch pipe is also connected to the first main pipe, and the port at the free end of the connecting pipe extends out of the inner tank.
[0023] As an optional solution, a plurality of flow holes are spaced apart on the side wall of the second branch pipe extending into the inner container.
[0024] As an optional solution, the position of each of the flow holes is lower than the port position of the free end of the first branch pipe and the position of the instant heating body.
[0025] As an optional solution, the distance between the flow hole and the bottom wall of the inner container is 3 mm to 5 mm.
[0026] As an optional solution, the instant heating body includes:
[0027] An instant heating body, wherein the instant heating body is arranged inside the inner pot;
[0028] A heating element, the heating element extending into the interior of the instant heating body; and
[0029] A heating pipeline is wound around the heating element, a first end of the heating pipeline is connected to the first main pipeline, and a second end of the heating pipeline is connected to the second pipeline.
[0030] Beneficial effects of the utility model:
[0031] The utility model provides a water heater, which comprises an inner tank, a heat storage type heating body and an instant heating body, wherein the inner tank is used to store water, the heat storage type heating body is arranged in the inner tank, the instant heating body is arranged in the inner tank, and the preheated water in the inner tank can be passed into the instant heating body or the cold water passed into the inner tank is pre-passed into the instant heating body. The water heater arranges the instant heating body in the inner tank so that the heat emitted by the instant heating body can heat the water in the inner tank, thereby avoiding heat waste, improving heat utilization, avoiding the heat emitted by the instant heating body from damaging surrounding devices and plastic parts, and also avoiding heat accumulation in the instant heating body to damage the instant heating body. In addition, the preheated water in the inner tank can be passed into the instant heating body, or the cold water passed into the inner tank can be passed into the instant heating body in advance, so that the instant heating body can be used as a rear part to accurately control the temperature of the water outlet, and the instant heating body can also be used as a front part to preheat the water passed into the inner tank, which is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is a structural schematic diagram of a water heater provided by an embodiment of the utility model;
[0033] Figure 2 is a side view of a water heater provided by an embodiment of the utility model;
[0034] Figure 3 It is a partial structural schematic diagram of a water heater provided in an embodiment of the utility model.
[0035] In the figure:
[0036] 1. Inner tank; 11. First mounting flange; 12. Second mounting flange; 2. Heat storage heater; 3. Instant heater; 4. First pipeline; 41. First main pipeline; 42. First branch pipe; 43. Second branch pipe; 431. Connecting pipeline; 432. First branch pipe; 433. Second branch pipe; 4331. Flow hole; 434. Three-way valve; 5. Second pipeline. DETAILED DESCRIPTION
[0037] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further explained below with reference to the accompanying drawings and through specific implementation methods.
[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0040] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0041] In order to improve the heating efficiency of hot water, existing water heaters usually set up instant heating bodies to heat water. The instant heating body will emit a lot of heat during operation, which may easily cause the surrounding components and plastic parts to age and fail. In order to improve the protection of the whole machine, the instant heating body is usually placed on the outside of the whole machine, resulting in a waste of heat emitted by the instant heating body. In addition, in order to prevent the heat emitted by the instant heating body from damaging the surrounding components and plastic parts, if the periphery of the instant heating body is protected, it is easy to cause heat to accumulate in the instant heating body and cause damage to the instant heating body. In addition, the heating scenarios of existing instant heating bodies are relatively single and cannot meet the various needs of users.
[0042] In order to solve the above problems, Figure 1 to Figure 3 As shown, this embodiment provides a water heater, which includes an inner tank 1, a heat storage type heating body 2 and an instant heating type heating body 3, wherein the inner tank 1 is used to store water, the heat storage type heating body 2 is arranged in the inner tank 1, the instant heating type heating body 3 is arranged in the inner tank 1, and the preheated water in the inner tank 1 can be passed into the instant heating type heating body 3 or the cold water passed into the inner tank 1 is pre-passed into the instant heating type heating body 3. The water heater provided in this embodiment, by arranging the instant heating type heating body 3 in the inner tank 1, enables the heat emitted by the instant heating type heating body 3 to heat the water in the inner tank 1, thereby avoiding the waste of heat, improving the utilization rate of heat, and avoiding the heat emitted by the instant heating type heating body 3 from damaging the surrounding devices and plastic parts, and also avoiding the heat accumulation in the instant heating type heating body 3 to damage the instant heating type heating body 3. In addition, the preheated water in the inner pot 1 can be passed into the instant heating body 3 or the cold water passed into the inner pot 1 can be passed into the instant heating body 3 in advance, so that the instant heating body 3 can be used as a rear part to accurately control the temperature of the water outlet, and the instant heating body 3 can also be used as a front part to preheat the water passed into the inner pot 1, which is more flexible.
[0043] It should be noted that the heat storage heating body 2 inside the inner tank 1 can realize heat storage heating of the water in the inner tank 1. When the preheated water in the inner tank 1 can be passed into the instant heating body 3, the instant heating body 3, as a post-part, can more accurately control the temperature of the water outlet. When the cold water passed into the inner tank 1 is passed into the instant heating body 3 in advance, the instant heating body 3, as a pre-part, preheats the water passed into the inner tank 1. It should be noted that the water heater provided in this embodiment refers to an electric water heater, and the electric water heater has two modes, namely, an electric heat storage mode and an electric instant heating mode.
[0044] In this embodiment, the water heater further includes a first pipeline 4 and a second pipeline 5, both of which are connected to the instant heating body 3, the port of the second pipeline 5 at the free end extends out of the inner tank 1, and the first pipeline 4 has a port at the free end located in the inner tank 1. When the preheated water in the inner tank 1 can be passed into the instant heating body 3 (when the instant heating body 3 is used as a post-installed part), the first pipeline 4 is the water inlet pipeline and the second pipeline 5 is the water outlet pipeline. At this time, the preheated water in the inner tank 1 heated by the heat storage heating body 2 can enter the instant heating body 3 through the first pipeline 4, and flow out through the second pipeline 5 after being heated again by the instant heating body 3, so that the temperature of the water discharged from the second pipeline 5 can be more accurately adjusted to meet the user's demand for water temperature. It should be noted that when the cold water introduced into the inner tank 1 is pre-introduced into the instant heating body 3 (when the instant heating body 3 serves as the front part), the first pipeline 4 is the water outlet pipeline and the second pipeline 5 is the water inlet pipeline. At this time, the cold water from the outside first enters the instant heating body 3 through the second pipeline 5. After being quickly heated by the instant heating body 3, it can be discharged into the inner tank 1 through the first pipeline 4, thereby realizing the preheating process of the water introduced into the inner tank 1, which is convenient for quickly increasing the temperature of the water in the inner tank 1.
[0045] In this embodiment, the first pipeline 4 includes a first main pipeline 41, a first branch pipe 42 and a second branch pipe 43, wherein the port of the free end of the first branch pipe 42 is located in the inner pot 1, and the port of the free end of the second branch pipe 43 extends out of the inner pot 1, and the first branch pipe 42 and the second branch pipe 43 are both connected to the first main pipeline 41, and the first main pipeline 41 is connected to the instant heating body 3.
[0046] When the preheated water in the inner tank 1 can be passed into the instant heating body 3, the first main pipeline 41 is the water inlet main pipeline, the first branch pipe 42 is the preheated water inlet pipe, and the second branch pipe 43 is the cold water inlet pipe. At this time, after the preheated water in the inner tank 1 enters the first branch pipe 42, it is mixed with the cold water from the outside that enters the second branch pipe 43 and then enters the instant heating body 3 for heating, and is finally discharged through the second pipeline 5, so that the instant heating body 3 can be filled with water in a mixed manner of cold and hot water, which effectively increases the water output of the instant heating body 3 for hot water. Specifically, when the temperature of the preheated water in the inner tank 1 is higher than the required hot water temperature, the amount of cold water passed into the first main pipeline 41 by the second branch pipe 43 is appropriately increased, and the amount of preheated water passed into the first main pipeline 41 by the first branch pipe 42 is reduced to ensure that the temperature of the water discharged from the instant heating body 3 is the required temperature; when the temperature of the preheated water in the inner tank 1 is lower than the required hot water temperature, the amount of cold water passed into the first main pipeline 41 by the second branch pipe 43 is appropriately reduced, and the amount of preheated water passed into the first main pipeline 41 by the first branch pipe 42 is increased to ensure that the temperature of the water discharged from the instant heating body 3 is the required temperature.
[0047] When the cold water introduced into the inner tank 1 is pre-introduced into the instant heating body 3, the first main pipeline 41 is the water outlet main pipeline, the first branch pipe 42 is the preheated water outlet pipe, and the second branch pipe 43 is the hot water outlet pipe. At this time, the cold water introduced through the second pipeline 5 is heated by the instant heating body 3 and then discharged into the first main pipeline 41. A part of the heated water introduced into the first main pipeline 41 is discharged into the inner tank 1 through the first branch pipe 42, thereby improving the heating effect of the water in the entire inner tank 1, and the remaining part is discharged into the second branch pipe 43 to meet the user's demand for hot water.
[0048] In the present embodiment, the first pipeline 4 further includes a flow regulating valve (not shown in the figure), and the first branch pipe 42 and the second branch pipe 43 are both connected to the first main pipeline 41 through the flow regulating valve. When the first pipeline 4 acts as a water inlet pipeline, the flow regulating valve is set to adjust the amount of water introduced into the first main pipeline 41 by the second branch pipe 43 and the first branch pipe 42, so as to accurately adjust the ratio of cold water and preheated water introduced into the first main pipeline 41, and then accurately control the temperature of the hot water discharged from the instant heating body 3. When the first pipeline 4 acts as a water outlet pipeline, the flow regulating valve is set to accurately adjust the amount of water introduced into the first branch pipe 42 and the second branch pipe 43 by the first main pipeline 41, so as to quickly increase the temperature of the water in the inner tank 1 as much as possible while meeting the user's requirements for the amount of water. Since the specific structure and working principle of the flow regulating valve belong to the prior art, they will not be repeated here.
[0049] Optionally, in this implementation, if Figure 1 As shown, the port at the free end of the first branch pipe 42 extends toward the top of the inner tank 1. Since water is easily stratified inside the inner tank 1, that is, water with higher temperature is usually located at the top of the inner tank 1, and water with lower temperature is usually located at the bottom of the inner tank 1, by extending the port at the free end of the first branch pipe 42 toward the top of the inner tank 1, the port at the free end of the first branch pipe 42 is as close to the top of the inner tank 1 as possible. When the first branch pipe 42 is a preheated water inlet pipe, the stability of the preheated water entering the first branch pipe 42 is ensured, thereby improving the user's hot water experience. When the first branch pipe 42 is a preheated water outlet pipe, it is ensured that the preheated water discharged from the first branch pipe 42 is first mixed with the hot water at the top of the inner tank 1.
[0050] Optionally, in this embodiment, the distance between the port at the free end of the first branch pipe 42 and the top wall of the inner tank 1 is 3mm to 5mm. Specifically, the distance between the port at the free end of the first branch pipe 42 and the top wall of the inner tank 1 can be 3mm, 3.5mm, 4mm, 4.5mm or 5mm. The above numerical limit allows the port at the free end of the first branch pipe 42 to be as close to the top of the inner tank 1 as possible, thereby ensuring the stability of the first branch pipe 42 in passing preheated water, improving the user's hot water experience, and ensuring that the preheated water discharged from the first branch pipe 42 is first mixed with the hot water at the top of the inner tank 1.
[0051] Optionally, in this embodiment, the heat storage heater 2 is located at the bottom of the first branch pipe 42. Specifically, the heat storage heater 2 is arranged as close to the bottom of the inner tank 1 as possible. Since the water with a lower temperature in the inner tank 1 is usually located at the bottom of the inner tank 1, the heat storage heater 2 can better heat the water in the inner tank 1, effectively improving the uniformity of the temperature of the water in the inner tank 1 at various positions.
[0052] Optionally, in this embodiment, the instant heating body 3 is located above the heat storage heating body 2 in the inner pot 1. The above arrangement prevents the lower temperature water at the bottom of the inner pot 1 from affecting the heating effect of the instant heating body 3.
[0053] In this embodiment, if Figure 1 As shown, the second branch pipe 43 includes a connecting pipe 431, a first branch pipe 432 and a second branch pipe 433, wherein the first branch pipe 432 and the second branch pipe 433 are both connected to the connecting pipe 431, the first branch pipe 432 is also connected to the first main pipe 41, and the port at the free end of the connecting pipe 431 extends out of the inner tank 1. When the second branch pipe 43 acts as a cold water inlet pipe, a portion of the cold water introduced into the connecting pipe 431 can be introduced into the first main pipe 41 through the first branch pipe 432, and the remaining portion of the cold water introduced into the connecting pipe 431 is directly introduced into the inner tank 1 through the second branch pipe 433, thereby replenishing the water in the inner tank 1. When the second branch pipe 43 acts as a hot water outlet pipe, the hot water flowing from the first main pipe 41 into the first branch pipe 432 is discharged after passing through the connecting pipe 431.
[0054] It should be noted that, in this embodiment, the second branch pipe 43 further includes a three-way valve 434 , and the first branch pipe 432 and the second branch pipe 433 are both connected to the connecting pipe 431 via the three-way valve 434 .
[0055] Optionally, in this embodiment, if Figure 1As shown, a plurality of flow holes 4331 are spaced apart on the side wall of the second branch pipe 433 extending into the inner tank 1. In the present embodiment, the plurality of flow holes 4331 are spaced apart along the axial and circumferential directions of the second branch pipe 433. When the second branch pipe 43 acts as a cold water inlet pipe, the flow holes 4331 are cold water outlet holes, and the cold water introduced into the second branch pipe 433 is discharged into the inner tank 1 in the form of diffusion to the surroundings through the various flow holes 4331, so that the cold water is more evenly mixed into the inner tank 1, thereby avoiding the local water temperature in the inner tank 1 being too low. When the second branch pipe 43 acts as a hot water outlet pipe, the flow holes 4331 are preheated water inlet holes, and the water in the inner tank 1 can enter the second branch pipe 433 through the flow holes 4331, and the hot water discharged from the first branch pipe 432 is mixed with the water in the second branch pipe 433 and discharged through the connecting pipe 431, thereby ensuring the water output.
[0056] In this embodiment, the heat storage type heating body 2 is arranged close to the circulation hole 4331. When the circulation hole 4331 is a cold water outlet hole, the heat storage type heating body 2 timely heats the cold water entering the inner tank 1. When the circulation hole 4331 is a preheated water inlet hole, the reliability of the temperature of the water entering the second branch pipe 433 is ensured.
[0057] In this embodiment, the position of each circulation hole 4331 is lower than the position of the water inlet of the first branch pipe 42 and the position of the instant heating body 3, and each circulation hole 4331 is arranged as close as possible to the bottom wall of the inner pot 1. The position of the circulation hole 4331 is arranged so that the port at the free end of the first branch pipe 42 and the instant heating body 3 are both far away from the circulation hole 4331. When the circulation hole 4331 acts as a cold water outlet, the first branch pipe 42 can be prevented from directly discharging the cold water discharged from the circulation hole 4331, which affects the temperature of the hot water discharged from the instant heating body 3, thereby ensuring the stability of the temperature of the hot water discharged from the instant heating body 3 and improving the user's hot water experience.
[0058] Optionally, in this embodiment, the distance between the circulation hole 4331 and the bottom wall of the inner container 1 is 3 mm to 5 mm. Specifically, the distance between the circulation hole 4331 and the bottom wall of the inner container 1 can be 3 mm, 3.5 mm, 4 mm, 4.5 mm or 5 mm. The above numerical values are limited so that each circulation hole 4331 is arranged as close to the bottom wall of the inner container 1 as possible.
[0059] In the present embodiment, the instant heating body 3 includes an instant heating body body, a heating element and a heating pipeline, wherein the instant heating body body is arranged inside the inner pot 1, the heating element extends into the interior of the instant heating body body, the heating pipeline is wound around the heating element, the first end of the heating pipeline is connected to the first main pipeline 41, and the second end of the heating pipeline is connected to the second pipeline 5. It should be noted that in the present embodiment, the heating element can be designed in the form of a heating wire, and the instant heating body body and the heating element in the instant heating body 3 can be installed and fixed on the first mounting flange 11 at the mounting port of the inner pot 1. In the present embodiment, the heat storage heating body 2 can be designed in the form of a heating rod, and the heating rod is installed and fixed on the second mounting flange 12 at the mounting port of the inner pot 1.
[0060] It should be noted that, in other embodiments, the instant heating body and the heating element can also be assembled with the inner pot 1 with their own threads, or a sleeve can be welded inside the inner pot 1 and the instant heating body can be built into the sleeve.
[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A water heater, characterized in that: include: An inner liner (1), the inner liner (1) being used to store water; A heat storage type heating body (2), wherein the heat storage type heating body (2) is arranged in the inner container (1); and An instant heating body (3), wherein the instant heating body (3) is arranged in the inner pot (1), and the preheated water in the inner pot (1) can be passed into the instant heating body (3) or the cold water in the inner pot (1) can be passed into the instant heating body (3) in advance.
2. The water heater according to claim 1, characterized in that: The instant heating body (3) is located above the heat storage heating body (2) in the inner pot (1).
3. The water heater according to claim 1 or 2, characterized in that: The water heater further comprises a first pipeline (4) and a second pipeline (5), wherein the first pipeline (4) and the second pipeline (5) are both connected to the instant heating body (3), the second pipeline (5) has a port at a free end extending out of the inner tank (1), and the first pipeline (4) has a port at a free end located in the inner tank (1); When the preheated water in the inner pot (1) can flow into the instant heating body (3), the first pipeline (4) is a water inlet pipeline, and the second pipeline (5) is a water outlet pipeline; When the cold water introduced into the inner pot (1) is introduced into the instant heating body (3) in advance, the first pipeline (4) is a water outlet pipeline, and the second pipeline (5) is a water inlet pipeline.
4. The water heater according to claim 3, characterized in that: The first pipeline (4) comprises a first main pipeline (41), a first branch pipe (42) and a second branch pipe (43); a port at a free end of the first branch pipe (42) is located inside the inner pot (1), and a port at a free end of the second branch pipe (43) extends out of the inner pot (1); the first branch pipe (42) and the second branch pipe (43) are both connected to the first main pipeline (41), and the first main pipeline (41) is connected to the instant heating element (3); When the preheated water in the inner pot (1) can flow into the instant heating body (3), the first main pipeline (41) is the water inlet main pipeline, the first branch pipe (42) is the preheated water inlet pipe, and the second branch pipe (43) is the cold water inlet pipe; When the cold water introduced into the inner pot (1) is introduced into the instant heating body (3) in advance, the first main pipeline (41) is the water outlet main pipeline, the first branch pipe (42) is the preheated water outlet pipe, and the second branch pipe (43) is the hot water outlet pipe.
5. The water heater according to claim 4, characterized in that: The first pipeline (4) also includes: A flow regulating valve, wherein the first branch pipe (42) and the second branch pipe (43) are both connected to the first main pipeline (41) through the flow regulating valve.
6. The water heater according to claim 4, characterized in that: The port at the free end of the first branch pipe (42) extends toward the top of the inner container (1).
7. The water heater according to claim 6, characterized in that: The distance between the free end port of the first branch pipe (42) and the top wall of the inner container (1) is 3 mm to 5 mm.
8. The water heater according to claim 4, characterized in that: The heat storage heating body (2) is located at the bottom of the first branch pipe (42).
9. The water heater according to claim 4, characterized in that: The second branch pipe (43) comprises a connecting pipe (431), a first branch pipe (432) and a second branch pipe (433); the first branch pipe (432) and the second branch pipe (433) are both connected to the connecting pipe (431); the first branch pipe (432) is also connected to the first main pipe (41); and a port at a free end of the connecting pipe (431) extends out of the inner tank (1).
10. The water heater according to claim 9, characterized in that A plurality of flow holes (4331) are provided at intervals on the side wall of the portion of the second branch pipe (433) extending into the inner container (1).
11. The water heater according to claim 10, characterized in that The position of each of the flow holes (4331) is lower than the port position of the free end of the first branch pipe (42) and the position of the instant heating body (3).
12. The water heater according to claim 10, characterized in that The distance between the circulation hole (4331) and the bottom wall of the inner container (1) is 3 mm to 5 mm.
13. The water heater according to claim 4, characterized in that The instant heating element (3) comprises: An instant heating body, the instant heating body being arranged inside the inner container (1); A heating element, the heating element extending into the interior of the instant heating body; and A heating pipeline, the heating pipeline is wound around the heating element, a first end of the heating pipeline is connected to the first main pipeline (41), and a second end of the heating pipeline is connected to the second pipeline (5).