Heating device and heating system

Abstract

The utility model discloses a heating device and a heating system. The heating device comprises a water inlet runner, a water outlet runner, a branch runner group and a water inlet branch runner, the water inlet runners and the water outlet runners are arranged at intervals; the branch flow channel group comprises a plurality of branch flow channels, and heating pieces are arranged in the branch flow channels; the branch flow channel is communicated with the water inlet flow channel through a water inlet branch flow channel, and the other end of the water inlet branch flow channel is fixed to the side wall of one end of the branch flow channel and communicated with the branch flow channel. And the water inlet branch flow channel is tangent to the inner wall of the branch flow channel. And the opening in the side wall of one end of the branch flow channel is communicated with the water inlet branch flow channel. The water inlet branch flow channel is tangent to the inner wall of the branch flow channel, so that when liquid enters the branch flow channel, the flow channel direction of the liquid is tangent to the circumferential direction of the inner wall of the branch flow channel, the liquid can flow in the circumferential direction of the inner wall of the branch flow channel to form spiral flow, and the spirally flowing liquid can fully exchange heat with a heating element in the branch flow channel; the heating efficiency of the heating device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of heating equipment, and in particular to a heating device and a heating system. Background Art

[0002] Water-heating devices are widely used in energy storage, new energy vehicles and other fields. They can provide a suitable working environment for batteries and improve user experience.

[0003] Water heating devices usually heat the heated material by generating heat from a heating element and exchanging heat with the heated material. In the existing heating devices, the heat exchange effect between the heating element and the heated material is poor, and the heating efficiency of the heater is low. Utility Model Content

[0004] The present application provides a heating device and a heating system to improve the heat exchange effect between a heating element and a liquid in the heating device and to increase the thermal efficiency of the heater.

[0005] In order to solve the above-mentioned technical problems, the first technical solution provided in the present application is to provide a heating device, which includes: a water inlet channel and a water outlet channel, the water inlet channel and the water outlet channel are arranged at intervals; a branch channel group, the branch channel group includes a plurality of branch channels, and a heating element is arranged in the branch channel; a water inlet branch channel, the branch channel is connected with the water inlet channel through the water inlet branch channel, wherein one end of the water inlet branch channel is connected with the water inlet channel, and the other end of the water inlet branch channel is fixed on the side wall of one end of the branch channel and is connected with the branch channel; the other end of the branch channel is connected with the water outlet channel; wherein the water inlet branch channel is tangent to the inner wall of the branch channel.

[0006] In a possible embodiment, the heating device also includes: a water outlet branch channel, the branch channel is connected to the water outlet channel through the water outlet branch channel, wherein one end of the water outlet branch channel is connected to the water outlet channel, and the other end of the water outlet branch channel is fixed on the side wall of the branch channel and is connected to the branch channel.

[0007] In a possible implementation manner, the water inlet channel and the water outlet channel are coplanar and arranged in parallel, and the branch channel is perpendicular to the water inlet channel.

[0008] In a possible implementation manner, the branch flow channels are provided on two opposite surfaces of the plane where the water inlet flow channel and the water outlet flow channel are located;

[0009] The branch flow channels on both sides of the water inlet flow channel are symmetrically arranged, and the water inlet branch flow channels on both sides of the water inlet flow channel are symmetrically arranged.

[0010] In a possible implementation manner, an angle between a liquid flow direction of the water inlet channel and a liquid flow direction of the water inlet branch channel is an acute angle.

[0011] In a possible implementation manner, an angle between a liquid flow direction of the water outlet channel and a liquid flow direction of the water outlet branch channel is an obtuse angle.

[0012] In a possible embodiment, the cross-section of the water inlet branch channel is rectangular, and its long side is parallel to the axial direction of the branch channel and perpendicular to the axial direction of the water inlet channel; the cross-section of the water outlet branch channel is rectangular, and its long side is perpendicular to the axial direction of the branch channel and parallel to the axial direction of the water outlet channel.

[0013] In a possible embodiment, the branch flow channel includes a first heating segment and a second heating segment that are parallel to each other and spaced apart, and one end of the first heating segment is connected to one end of the second heating segment through at least a third heating segment; wherein the other end of the first heating segment is connected to the water inlet flow channel through a water inlet branch flow channel, and the other end of the second heating segment is connected to the water outlet flow channel through a water outlet branch flow channel.

[0014] In a possible embodiment, the heating device further includes: reinforcing ribs, the water inlet channel is also connected to the branch channel through the reinforcing ribs, and the water outlet channel is also connected to the branch channel through the reinforcing ribs; preferably, the reinforcing ribs cover the water inlet branch channel and the water outlet branch channel.

[0015] In order to solve the above problems, the second technical solution provided in the present application is to provide a heating system, which includes the heating device described in any one of the above items.

[0016] The beneficial effect is: the present application provides a heating device and a heating system, the heating device includes: a water inlet channel and a water outlet channel, the water inlet channel and the water outlet channel are arranged at intervals; a branch channel group, the branch channel group includes a plurality of branch channels, and a heating element is arranged in the branch channel; a water inlet branch channel, the branch channel is connected to the water inlet channel through the water inlet branch channel, wherein one end of the water inlet branch channel is connected to the water inlet channel, and the other end of the water inlet branch channel is fixed on the side wall of one end of the branch channel and is connected to the branch channel; the other end of the branch channel is connected to the water outlet channel; wherein the water inlet branch channel is tangent to the inner wall of the branch channel. As mentioned above, the heating device is provided with a water inlet branch channel, and the opening of the side wall of one end of the branch channel is connected to the water inlet branch channel. Moreover, the water inlet branch channel is tangent to the inner wall of the branch channel. This structure ensures that when the liquid flows from the water inlet channel through the water inlet branch channel into the branch channel, the flow direction of the liquid is tangent to the circumferential inner wall of the branch channel, so that the liquid can flow circumferentially along the inner wall of the branch channel to form a spiral flow. The spirally flowing liquid can fully exchange heat with the heating element in the branch channel, thereby improving the heating efficiency of the heating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0018] Figure 1 It is a structural schematic diagram of the first embodiment of the heating device of the present application;

[0019] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure along the axis of the water inlet channel in the heating device;

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the water inlet channel and the water inlet branch channel in the heating device;

[0021] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure along the axis of the water outlet channel in the heating device;

[0022] Figure 5 yes Figure 1 A schematic diagram of the structure of the water outlet channel and the water outlet branch channel in the heating device;

[0023] Figure 6 It is a schematic diagram of the flow state of liquid flowing inside the heating device of the present application;

[0024] Figure 7 It is a structural schematic diagram of the second embodiment of the heating device of the present application.

[0025] Description of the drawings: 100, heating device; 10, water inlet channel; 20, water outlet channel; 30, branch channel; 70, heating element; 11, liquid input port; 21, liquid output port; 40, water inlet branch channel; 50, water outlet branch channel; 60, reinforcing rib; 31, first heating section; 32, second heating section; 33, third heating section; 34, fourth heating section. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It should be noted that the terms "first" and "second" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0028] In the existing heaters, the heat exchange effect between the heating element and the heated material is poor, and the heating efficiency of the heater is low.

[0029] Based on the above problems, the present application proposes a heating device and a heating system. By setting a water inlet branch channel, the opening of the side wall of one end of the branch channel is connected to the water inlet branch channel. The water inlet branch channel is tangent to the inner wall of the water inlet channel, which can effectively solve the above technical problems.

[0030] See also Figure 1 , Figure 2 and Figure 6 , Figure 1 It is a structural schematic diagram of the first embodiment of the heating device of the present application; Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure along the axis of the water inlet channel in the heating device;

[0031] Figure 6Schematic diagram of the flow state of the liquid inside the heating device of the present application. In a specific embodiment, the heating device 100 includes a water inlet channel 10, a water outlet channel 20, a branch channel group and a water inlet branch channel 40.

[0032] The water inlet channel 10 and the water outlet channel 20 are arranged at intervals; the branch channel group includes a plurality of branch channels 30, and a heating element 70 is arranged in the branch channel 30; the branch channel 30 is connected to the water inlet channel 10 through the water inlet branch channel 40, wherein one end of the water inlet branch channel 40 is connected to the water inlet channel 10, and the other end of the water inlet branch channel 40 is fixed on the side wall of one end of the branch channel 30 and is connected to the branch channel 30; the other end of the branch channel 30 is connected to the water outlet channel 20; wherein the water inlet branch channel 40 is tangent to the inner wall of the branch channel 30. Specifically, one end of the water inlet channel 10 is the input port 11 of the liquid to be heated, and one end of the water outlet channel 20 is the output port 21 of the heated liquid. In this embodiment, the water inlet channel 10 and the water outlet channel 20 are parallel to each other, and the liquid input port 11 and the liquid output port 21 are located at the same end of the water inlet channel 10 and the water outlet channel 20. In some other embodiments, the liquid input port 11 and the liquid output port 21 can also be located at different ends of the water inlet channel 10 and the water outlet channel 20. In addition, in some other embodiments, the water inlet channel 10 and the water outlet channel 20 can also be arranged at an angle. In this embodiment, the water inlet channel 10 and the water outlet channel 20 are located on the same surface, and the two opposite sides of the surface are provided with branch channels 30. In some other embodiments, the branch channels 30 can also be arranged on one side of the surface. In addition, in this embodiment, each branch channel 30 is parallel to each other. In some other embodiments, each branch channel 30 can also be arranged at an angle. In this embodiment, the branch channel group includes nine branch channels 30. In some other embodiments, the branch channel group can also include seven, eight, ten, eleven or other reasonable numbers of branch channels 30. As mentioned above, by setting the water inlet branch channel 40, the opening on the side wall of the branch channel 30 is connected to the water inlet channel 10 through the water inlet branch channel 40, and the water inlet branch channel 40 is tangent to the inner wall of the branch channel 30. When the liquid flows from the water inlet channel 10 through the water inlet branch channel 40 and enters the branch channel 30, the flow direction of the liquid is tangent to the circumferential direction of the inner wall of the branch channel 30, so that the liquid can more easily flow along the circumferential direction of the inner wall of the branch channel 30 to form a spiral flow.

[0033] Different from the prior art, the present application provides a heating device 100. The heating device 100 is provided with a water inlet branch channel 40, and the opening of the side wall at one end of the branch channel 30 is connected to the water inlet branch channel 40. The water inlet branch channel 40 is tangent to the inner wall of the branch channel 30. This structure ensures that when the liquid flows from the water inlet channel 10 through the water inlet branch channel 40 and enters the branch channel 30, the flow direction of the liquid is tangent to the inner wall of the branch channel 30 in the circumferential direction, so that the liquid can flow along the inner wall of the branch channel 30 in the circumferential direction to form a spiral flow. The spirally flowing liquid can fully exchange heat with the heating element 70 in the branch channel 30, thereby improving the heating efficiency of the heating device 100.

[0034] Please refer to Figures 3 to 5 , Figure 3 yes Figure 1 A schematic diagram of the structure of the water inlet channel and the water inlet branch channel in the heating device; Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure along the axis of the water outlet channel in the heating device; Figure 5 yes Figure 1 Structural schematic diagram of the water outlet channel and the water outlet branch channel in the heating device. In some embodiments, the heating device 100 further includes a water outlet branch channel 50, through which the branch channel 30 is connected to the water outlet channel 20, wherein one end of the water outlet branch channel 50 is connected to the water outlet channel 20, and the other end of the water outlet branch channel 50 is fixed on the side wall of the branch channel 30 and is connected to the branch channel 30. Specifically, the water outlet branch channel 50 is connected to the water inlet branch channel 40 at the opposite ends of the branch channel 30, and preferably, the water outlet branch channel 50 is also connected to the side wall of the opening on the side wall of the branch channel 30. This arrangement makes it easier for the spirally flowing liquid heated in the branch channel 30 to flow out of the water outlet branch channel 50 connected to the side wall of the branch channel 30 under the action of centrifugal force during the process of rotating the flow channel along the side wall of the branch channel 30. In some preferred embodiments, the outlet branch channel 50 is arranged to be tangent to the inner wall of the branch channel 30 . This arrangement enables the spirally flowing liquid to flow out of the outlet branch channel 50 more easily.

[0035] In some embodiments, the water inlet channel 10 and the water outlet channel 20 are coplanar and arranged in parallel, and the branch channel 30 is perpendicular to the water inlet channel 10. Specifically, the branch channel 30 is arranged at an angle with the water inlet channel 10. Preferably, the branch channel 30 is perpendicular to the water inlet channel 10. In some other embodiments, the angle between the branch channel 30 and the water inlet channel 10 can also be an acute angle, or the angle between the branch channel 30 and the water inlet channel 10 can also be an obtuse angle, which is not specifically limited.

[0036] Furthermore, branch channels 30 are provided on opposite sides of the plane where the water inlet channel 10 and the water outlet channel 20 are located. Specifically, in this embodiment, the liquid input port 11 and the liquid output port 21 are located at the same end of the water inlet channel 10 and the water outlet channel 20, and a branch channel 30 is further provided at the other end of the water inlet channel 10 and the water outlet channel 20, and the branch channel 30 is located on the same surface as the water inlet channel 10 and the water outlet channel 20.

[0037] In this embodiment, branch channels 30 are provided on opposite sides of the plane where the water inlet channel 10 and the water outlet channel 20 are located, and the branch channels 30 on opposite sides are connected to the water inlet channel 10 through the water inlet branch channels 40. Then branch channels 30 are provided on the side walls on both sides of the water inlet channel 10. In a preferred embodiment, the branch channels 30 on both sides of the water inlet channel 10 are symmetrically arranged, and the water inlet branch channels 40 on both sides of the water inlet channel 10 are symmetrically arranged. This arrangement is conducive to making the liquid flow rate in the branch channels 30 arranged in parallel on both sides of the water inlet channel 10 the same, and can make the liquid in the branch channels 30 arranged in parallel on both sides of the water inlet channel 10 be heated evenly. Further, in some embodiments, the branch channels 30 on both sides of the water outlet channel 20 are symmetrically arranged, and the water outlet branch channels 50 on both sides of the water outlet channel 20 are symmetrically arranged.

[0038] Furthermore, in the present embodiment, the angle between the liquid flow direction of the water inlet channel 10 and the liquid flow direction of the water inlet branch channel 40 is an acute angle. Specifically, it is easy to understand that the greater the liquid flow velocity in the water inlet branch channel 40, the easier it is for the liquid to form a spiral flow in the branch channel 30 when the liquid flows tangentially into the branch channel 30 along the inner wall. The above-mentioned design of the angle between the liquid flow direction and the liquid flow direction of the water inlet branch channel 40 to be an acute angle is conducive to reducing the flow resistance encountered by the liquid when entering the water inlet branch channel 40 from the water inlet channel 10, so that the liquid flow velocity in the water inlet branch channel 40 is greater, and the liquid is more likely to form a spiral flow when entering the branch channel 30 from the water inlet branch channel 40. Among them, the angle between the water inlet channel 10 and the water inlet branch channel 40 can be any reasonable value such as 80 degrees, 70 degrees, 60 degrees, etc., and is not specifically limited here.

[0039] In some other embodiments, the angle between the liquid flow direction of the water outlet channel 20 and the liquid flow direction of the water outlet branch channel 50 is an obtuse angle. Specifically, the angle between the liquid flow direction of the water outlet channel 20 and the liquid flow direction of the water outlet branch channel 50 is an obtuse angle, so that when the liquid flowing out of the water outlet branch channel 50 enters the water outlet channel 20, the flow resistance of the liquid is small, which facilitates the outflow of the heated liquid. Among them, the angle between the water outlet channel 20 and the water outlet branch channel 50 can be any reasonable value such as 100 degrees, 110 degrees, 120 degrees, etc., and is not specifically limited here.

[0040] In some embodiments, the cross section of the water inlet branch channel 40 is rectangular, and its long side is parallel to the axial direction of the branch channel 30 and perpendicular to the axial direction of the water inlet channel 10. Specifically, this arrangement allows the outlet of the water inlet branch channel 40 to maintain a relatively large axial extension length on the branch channel 30, and the liquid can have a relatively large area of ​​contact with the inner wall of the branch channel 30 when entering the branch channel 30 from the water inlet branch channel 40, so that the liquid can fully adhere to the inner wall of the branch channel 30 and flow circumferentially, thereby effectively promoting the liquid to flow along the inner wall of the branch channel 30 to form a spiral flow.

[0041] In some other embodiments, the cross section of the outlet branch channel 50 is rectangular, and its long side is perpendicular to the axial direction of the branch channel 30 and parallel to the axial direction of the outlet channel 20. Specifically, after the liquid flows through the branch channel 30, a spiral water flow is formed, and the spiral water flow rotates along the inner wall of the branch channel 30. The above arrangement allows the water inlet of each outlet branch channel 50 to maintain a large circumferential extension length on the branch channel 30, which can effectively promote the heated spiral liquid to flow out under the action of centrifugal force.

[0042] Furthermore, in this embodiment, the internal space of the water inlet channel 10 and the water outlet channel 20 is cylindrical, and the outside of the water inlet channel 10 and the water outlet channel 20 is rectangular. This arrangement facilitates the connection and fixation of the water inlet branch channel 40 with a rectangular cross section to the water inlet channel 10, and facilitates the connection and fixation of the water outlet branch channel 50 with a rectangular cross section to the water outlet channel 20.

[0043] See also Figure 7 , Figure 7It is a schematic diagram of the structure of the second embodiment of the heating device of the present application. Furthermore, in the present embodiment, each branch channel 30 is designed to be straight, each branch channel 30 is parallel to each other, and has the same length. In some other embodiments, the branch channel 30 can also be designed not to be straight, and the branch channel 30 includes a first heating section 31 and a second heating section 32 that are parallel to each other and spaced apart, and one end of the first heating section 31 is connected to one end of the second heating section 32 through at least a third heating section 33; wherein the other end of the first heating section 31 is connected to the water inlet channel 10 through the water inlet branch channel 40, and the other end of the second heating section 32 is connected to the water outlet channel 20 through the water outlet branch channel. Specifically, in this embodiment, each branch channel 30 is designed with multiple sections of bends. The branch channel 30 includes a plurality of heating sections connected in series, wherein the first heating section 31 is used to connect the water inlet channel 10 through the water inlet branch channel 40, the first heating section 31 is the injection end of the liquid to be heated, the second heating section 32 is used to connect the water outlet channel 20 through the water outlet branch channel, and the second heating section 32 is the output end of the heated liquid. In this embodiment, the third heating section 33 and the fourth heating section 34 are connected between the first heating section 31 and the second heating section 32, and the first heating section 31, the second heating section 32, the third heating section 33 and the fourth heating section 34 are all connected in series through pipelines, and the branch channel 30 includes a total of four heating sections, and each heating section is parallel to each other. In some other embodiments, the branch channel 30 can also include other reasonable numbers of heating sections such as three heating sections, five heating sections, etc., without specific limitation. In addition, the heating sections connected in series can be an integrally formed structure, or the heating sections connected in series can be connected by a detachable structure such as a thread or a flange.

[0044] Furthermore, in this embodiment, the water inlet channel 10 and the water inlet branch channel 40, the water inlet branch channel 40 and the branch channel 30, the branch channel 30 and the water outlet branch channel 50, and the water outlet branch channel 50 and the water outlet channel 20 are all integrated, so that the structural stability of the heating device 100 is better, and the heating device 100 is not prone to the risk of liquid leakage. In some other embodiments, the channels can also be fixedly connected by a connecting structure, which is not specifically limited.

[0045] In this embodiment, the heating element 70 is arranged in the branch flow channel 30. When the heating device 100 is heating, the heating element 70 is immersed in the liquid, and there is no heat transfer across the structure. The heat transfer efficiency of the heating element 70 is higher. In addition, when the heating device 100 of this embodiment is heating, the heat generated by the heating element 70 is fully taken away by the liquid, the heating effect of the heating device 100 is not obvious, and the heating device 100 has more reliable thermal safety.

[0046] In the present embodiment, the heating device 100 further includes a spiral guide structure, which is disposed in the branch channel 30. Specifically, the spiral guide structure can be disposed on the inner wall of the branch channel 30 to further promote the liquid to form a spiral water flow, so that the liquid can fully contact the heating element 70, thereby improving the thermal efficiency of the heating device 100. Among them, the heating element 70 in the branch channel 30 is preferably cylindrical, and the heating element 70 is disposed in the branch channel 30 and is coaxial with the branch channel 30, so that the liquid in the spiral water flow can rotate and flow around the heating element 70 in the branch channel 30, so that the liquid and the heating element 70 can fully exchange heat. On the other hand, in the present embodiment, the heating element 70 is disposed in each branch channel 30, and when the heating device 100 is heated, the heating element 70 directly contacts the liquid for heat transfer, and the heat transfer efficiency is higher.

[0047] In some embodiments, the heating device 100 further includes a reinforcing rib 60, and the water inlet channel 10 is also connected to the branch channel 30 through the reinforcing rib 60, and the water outlet channel 20 is also connected to the branch channel 30 through the reinforcing rib 60. Specifically, the arrangement of the reinforcing rib 60 enables the water inlet channel 10 and the branch channel 30 to be connected and fixed not only through the water inlet branch channel 40, and the water outlet channel 20 and the branch channel 30 to be connected and fixed not only through the water outlet branch channel 50, and the arrangement of the reinforcing rib 60 can improve the structural stability of the heating device 100. In a preferred embodiment, the cross-sectional area of ​​the water inlet branch channel 40 is smaller than the cross-sectional area of ​​the water inlet channel 10, and the cross-sectional area of ​​the water outlet branch channel 50 is smaller than the cross-sectional area of ​​the water outlet channel 20. The reinforcing rib 60 covers the water inlet branch channel 40 and the water outlet branch channel 50 to improve the structural strength of the water inlet branch channel 40 and the water outlet branch channel 50.

[0048] Furthermore, in the present embodiment, the heating device 100 also includes a dry-burning protection component, which includes an inlet water temperature sensor, a water flow rate temperature sensor, and a control component. The inlet water temperature sensor is arranged corresponding to the water inlet end of the water inlet channel 10; the water flow rate temperature sensor is arranged corresponding to the heating element 70; and the control component connects the inlet water temperature sensor and the water flow rate temperature sensor. Specifically, the inlet water temperature sensor is used to collect the temperature of the liquid before heating to obtain a first temperature signal, and the water flow rate temperature sensor is used to collect the temperature of the liquid in the branch channel 30 to obtain a second temperature signal. During the liquid heating process, the control component receives the first temperature signal and the second temperature signal. When the difference between the first temperature signal and the second temperature signal exceeds a preset threshold, the control component controls the heating device 100 to stop heating to play a role in dry-burning protection.

[0049] Different from the prior art, the present application provides a heating device 100. The heating device 100 is provided with a water inlet branch channel 40, and the opening of the side wall at one end of the branch channel 30 is connected to the water inlet branch channel 40. The water inlet branch channel 40 is tangent to the inner wall of the branch channel 30. This structure ensures that when the liquid flows from the water inlet channel 10 through the water inlet branch channel 40 and enters the branch channel 30, the flow direction of the liquid is tangent to the inner wall of the branch channel 30 in the circumferential direction, so that the liquid can flow along the inner wall of the branch channel 30 in the circumferential direction to form a spiral flow. The spirally flowing liquid can fully exchange heat with the heating element 70 in the branch channel 30, thereby improving the heating efficiency of the heating device 100.

[0050] Correspondingly, the present application also proposes a heating system, which includes the heating device described in any of the above embodiments.

[0051] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating device, characterized in that: The heating device comprises: A water inlet flow channel and a water outlet flow channel, wherein the water inlet flow channel and the water outlet flow channel are arranged at intervals; A branch flow channel group, the branch flow channel group includes a plurality of branch flow channels, and a heating element is arranged in the branch flow channels; A water inlet branch channel, wherein the branch channel is connected to the water inlet channel through the water inlet branch channel, wherein one end of the water inlet branch channel is connected to the water inlet channel, and the other end of the water inlet branch channel is fixed on the side wall of one end of the branch channel and connected to the branch channel; the other end of the branch channel is connected to the water outlet channel; Wherein, the water inlet branch channel is tangent to the inner wall of the branch channel.

2. The heating device according to claim 1, characterized in that The heating device also includes: A water outlet branch channel, wherein the branch channel is connected to the water outlet channel through the water outlet branch channel, wherein one end of the water outlet branch channel is connected to the water outlet channel, and the other end of the water outlet branch channel is fixed on the side wall of the branch channel and connected to the branch channel.

3. The heating device according to claim 2, characterized in that: The water inlet channel and the water outlet channel are coplanar and arranged in parallel, and the branch channel is perpendicular to the water inlet channel.

4. The heating device according to claim 3, characterized in that: The branch flow channels are arranged on two opposite sides of the plane where the water inlet flow channel and the water outlet flow channel are located; The branch flow channels on both sides of the water inlet flow channel are symmetrically arranged, and the water inlet branch flow channels on both sides of the water inlet flow channel are symmetrically arranged.

5. The heating device according to claim 4, characterized in that: The angle between the liquid flow direction of the water inlet channel and the liquid flow direction of the water inlet branch channel is an acute angle.

6. The heating device according to claim 4, characterized in that: The angle between the liquid flow direction of the water outlet channel and the liquid flow direction of the water outlet branch channel is an obtuse angle.

7. The heating device according to claim 4, characterized in that The cross section of the water inlet branch flow channel is rectangular, and its long side is parallel to the axial direction of the branch flow channel and perpendicular to the axial direction of the water inlet flow channel; The cross section of the outlet branch flow channel is rectangular, and the long side thereof is perpendicular to the axial direction of the branch flow channel and parallel to the axial direction of the outlet flow channel.

8. The heating device according to claim 4, characterized in that: The branch flow channel comprises a first heating section and a second heating section which are parallel to each other and spaced apart, and one end of the first heating section is connected to one end of the second heating section through at least a third heating section; Wherein, the other end of the first heating section is connected to the water inlet channel through a water inlet branch channel, and the other end of the second heating section is connected to the water outlet channel through a water outlet branch channel.

9. The heating device according to claim 2, characterized in that: The heating device also includes: Reinforcing ribs, the water inlet channel is also connected to the branch channel through the reinforcing ribs, and the water outlet channel is also connected to the branch channel through the reinforcing ribs; Preferably, the reinforcing ribs are arranged to cover the water inlet branch channel and the water outlet branch channel.

10. A heating system, characterized in that: The heating system comprises the heating device according to any one of claims 1-9.

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