Fluid heating device

Abstract

The utility model relates to the technical field of heating devices, in particular to a fluid heating device which comprises an electric heating tube set and a first sealing piece which is of an integrated structure and located at one end of the electric heating tube set, the electric heating tube set comprises at least two electric heating tubes, and any electric heating tube is provided with a heating channel. The first sealing piece is provided with at least two second through holes, and the heating channel of each electric heating pipe is communicated with one second through hole in a sealed mode. The first sealing piece of the device is of an integrated structure and can be connected with at least two electric heating tubes in a sealed mode, and compared with a traditional sealing mode of multiple sealing pieces, the device is easier and more convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of heating devices, in particular to a fluid heating device. Background Art

[0002] The heating of fluids or liquids is applied in various industries. In order to improve the heating speed, in related technologies, multiple electric heating tubes are heated in parallel. To avoid leakage problems when the parallel electric heating tubes are connected to external devices, in the prior art, an independent seal is provided at the end of each electric heating tube, and this setting method is relatively troublesome to assemble. Summary of the Utility Model

[0003] An object of the utility model is to solve the problems pointed out in the background art, and to propose a fluid heating device.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] A fluid heating device includes an electric heating tube group and a first seal with an integrated structure at one end of the electric heating tube group. The electric heating tube group includes at least two electric heating tubes, and each electric heating tube has a heating channel. The first seal has at least two second through holes, and the heating channel of each electric heating tube is hermetically connected to one of the second through holes.

[0006] On the side of the first seal close to the electric heating tube, there are at least two stepped grooves, each stepped groove corresponding to one of the second through holes. The end face of the electric heating tube abuts against the first stepped surface of the stepped groove, and the outer peripheral wall of the electric heating tube abuts against the first peripheral wall of the stepped groove.

[0007] On the side of the first stepped surface close to the electric heating tube, there is a first convex ring, and the inner peripheral wall of the electric heating tube abuts against the outer peripheral wall of the first convex ring.

[0008] A flow disturbing member is arranged in the electric heating tube. The flow disturbing member includes an intermediate tube and a spiral member. The heating channel is located between the intermediate tube and the electric heating tube, and the spiral member is fixed on the outer wall of the intermediate tube.

[0009] On the side of the first seal close to the electric heating tube, there are several grooves, and the end of the electric heating tube is hermetically fitted with the grooves. Inside the second through hole of the first seal, there is a third convex ring, and the end of the intermediate tube is hermetically fitted with the third convex ring.

[0010] The heating device includes a cylindrical shell. One end of the cylindrical shell is covered with a first end plate. The first end plate is provided with several first through holes. On the side of the first seal facing the second through hole and away from the electric heating tube, there is a second convex ring, and at least part of the second convex ring is inserted into the first through hole.

[0011] The heating device includes a second end plate and a second seal. The second seal is disposed at one end of the electric heating tube group away from the first seal. The second seal has at least two fourth through holes, and the heating channel of each electric heating tube is hermetically communicated with one of the fourth through holes. The second end plate covers one end of the cylinder shell away from the first end plate. The second end plate is provided with a plurality of third through holes, and each of the fourth through holes is correspondingly communicated with one of the third through holes.

[0012] On one side of the first end plate away from the electric heating tube, there is a first cover shell. There is a first mixing chamber between the first cover shell and the first end plate. The second through hole is communicated with the outside through the first mixing chamber.

[0013] On one side of the second end plate away from the electric heating tube, there is a second cover shell. There is a second mixing chamber between the second cover shell and the second end plate. The fourth through hole is communicated with the outside through the second mixing chamber.

[0014] The heating device includes a cylinder shell, a first end plate covering one end of the cylinder shell, a second end plate covering the other end of the cylinder shell, and a second seal. The second seal is disposed at one end of the electric heating tube group away from the first seal. The second seal has at least two fourth through holes, and the heating channel of each electric heating tube is hermetically communicated with one of the fourth through holes;

[0015] The first end plate is provided with a plurality of first through holes, and the second end plate is provided with a plurality of third through holes. Each of the second through holes is correspondingly communicated with one of the first through holes, and each of the fourth through holes is correspondingly communicated with one of the third through holes;

[0016] On one side of the first end plate away from the electric heating tube, a first cover shell is fixed. There is a first mixing chamber between the first cover shell and the first end plate. The second through hole is communicated with the outside through the first mixing chamber;

[0017] On one side of the second end plate away from the electric heating tube, a second cover shell is fixed. There is a second mixing chamber between the second cover shell and the second end plate. The fourth through hole is communicated with the outside through the second mixing chamber;

[0018] The first end plate and the second end plate are locked by a plurality of threaded stud assemblies. A support shell is disposed around the electric heating tube group, and a heat insulation layer is disposed between the support shell and the cylinder shell.

[0019] A fluid heating device proposed by the present utility model has the beneficial effect that the first seal of the device is an integral structure, which can hermetically connect at least two electric heating tubes. Compared with the traditional sealing method using multiple seals, the device is more simple and convenient to assemble. Description of the Drawings

[0020] Figure 1Schematic diagram of the overall three-dimensional structure of the present utility model;

[0021] Figure 2 Schematic diagram of the sectional front view structure of the present utility model;

[0022] Figure 3 Schematic diagram of the internal three-dimensional structure of the present utility model;

[0023] Figure 4 Schematic diagram of the three-dimensional sectional structure of the present utility model;

[0024] Figure 5 Schematic diagram of the half-sectional three-dimensional structure of the first embodiment of the first seal of the present utility model;

[0025] Figure 6 Schematic diagram of the sectional three-dimensional structure of the first cover of the present utility model;

[0026] Figure 7 Schematic diagram of the three-dimensional structure of the heat pipe with a spoiler provided in the present utility model;

[0027] Figure 8 Schematic diagram of the front view sectional structure of the heat pipe with a spoiler provided in the present utility model;

[0028] Figure 9 Schematic diagram of the structure of the second embodiment of the first seal of the present utility model;

[0029] Figure 10 Of the present utility model Figure 5 Enlarged structure diagram of part A.

[0030] In the figure: cylinder shell 1, first cover 2, first mixing chamber 3, first through hole 4, electric heat pipe group 6, electric heat pipe 7, heating channel 8, first seal 10, second through hole 11, stepped groove 12, first convex ring 13, second convex ring 14, first peripheral wall 15, first stepped surface 16, intermediate pipe 17, spiral member 18, third convex ring 20, groove 21, first end plate 22, second cover 23, second mixing chamber 24, second end plate 25, third through hole 26, second seal 27, fourth through hole 28, threaded post assembly 29, support shell 30, heat insulation layer 31. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] Refer to Figures 1-10, the present utility model adopts the following technical solutions: a fluid heating device, comprising an electric heating tube group 6, and a first seal 10 with an integrated structure and located at one end of the electric heating tube group 6. The electric heating tube group 6 includes at least two electric heating tubes 7. Any one of the electric heating tubes 7 has a heating channel 8. The first seal 10 has at least two second through holes 11, and the heating channel 8 of each electric heating tube 7 is hermetically connected to one second through hole 11.

[0033] The hermetic connection described in the text means that two hole structures are connected and the fluid will not leak between the two hole structures.

[0034] The first seal of this device is an integral structure, which can hermetically connect at least two electric heating tubes. Compared with the traditional sealing method using multiple seals, the assembly of this device is simpler.

[0035] Reference Figure 5 , as an implementation manner, the side of the first seal 10 close to the electric heating tube 7 has at least two stepped grooves 12. Each stepped groove 12 corresponds to one second through hole 11. The end face of the electric heating tube 7 abuts against the first stepped surface 16 of the stepped groove 12, and the outer peripheral wall of the electric heating tube 7 abuts against the first peripheral wall 15 of the stepped groove 12, so that both the end and the periphery of the electric heating tube 7 abut against the first seal 10, improving the sealing performance and stability after installation.

[0036] Furthermore, reference Figure 5 , a first convex ring 13 is provided on the side of the first stepped surface 16 close to the electric heating tube 7. The inner peripheral wall of the electric heating tube 7 abuts against the outer peripheral wall of the first convex ring 13. The end face, inner circumferential surface, and outer circumferential surface of the electric heating tube 7 all abut against the first seal 10, further improving the sealing performance.

[0037] As an implementation manner, the first seal 10 is made of an elastic material, such as elastic rubber.

[0038] As an implementation manner, reference Figures 7-9 , a flow disturbing member is provided inside the electric heating tube 7. The flow disturbing member includes an intermediate tube 17 and a spiral member 18. The heating channel 8 is located between the intermediate tube 17 and the electric heating tube 7. The spiral member 18 is fixed on the outer wall of the intermediate tube 17. The fluid flows in the heating channel 8 between the intermediate tube 17 and the electric heating tube 7. And under the flow disturbing action of the spiral member 18, the fluid is heated more uniformly and the heating speed is faster. Both the intermediate tube 17 and the spiral member 18 are made of pure quartz material to ensure the high purity and cleanliness of the fluid. The intermediate tube 17 and the spiral member 18 made of the same material are integrally provided after being fixed, which is convenient for their installation inside the electric heating tube 7.

[0039] Reference Figure 9, on one side of the first seal 10 close to the electric heating tube 7, there are several grooves 21. The end of the electric heating tube 7 is in sealing cooperation with the grooves 21. Each electric heating tube corresponds to one groove 21. The first seal 10 has a third convex ring 20 inside the second through hole 11. The end of the intermediate tube 17 is in sealing cooperation with the third convex ring 20. The electric heating tube 7 is in sealing cooperation with the first seal 10 through the grooves 21, and the intermediate tube 17 is in sealing cooperation with the third convex ring 20. Each second through hole 11 is divided into multiple hole units, and the multiple hole units are distributed around the third convex ring 20. By adopting this setting method, the relative positions of the electric heating tube 7 and the intermediate tube can be fixed, ensuring that the fluid flows between the electric heating tube 7 and the intermediate tube.

[0040] Reference Figures 1-4 , the heating device includes a cylinder shell 1. One end of the cylinder shell 1 is covered with a first end plate 22. The first end plate 22 is provided with several first through holes 4. On the side of the first seal 10 facing the second through hole 11 and away from the electric heating tube 7, there is a second convex ring 14. The second convex ring 14 is embedded in the first through hole 4. At least part of the second convex ring 14 of the first seal 10 is inserted into the first through hole 4, so that the first seal 10 is clamped and sealed between the first end plate 22 and the electric heating tube group 6. As an implementation manner, reference Figure 6 , a surrounding plate is arranged on the side of the first end plate 22 close to the electric heating tube. All the first through holes 4 are located inside the surrounding plate. The first seal 10 is placed inside the surrounding plate, making the assembly of the first seal 10 more stable and making it easier to complete the alignment work between the second convex ring 14 and the first through hole 4.

[0041] As an implementation manner, reference Figures 1-4 , the heating device includes a second end plate 25 and a second seal 27. The second seal 27 is arranged at one end of the electric heating tube group 6 away from the first seal 10. The second seal 27 has at least two fourth through holes 28. The heating channel 8 of each electric heating tube 7 is in sealed communication with one fourth through hole 28. The second end plate 25 covers the end of the cylinder shell 1 away from the first end plate 22. The second end plate 25 is provided with several third through holes 26. Each fourth through hole 28 corresponds to and communicates with one third through hole 26. The second end plate 25 and the second seal 27 are arranged at the other end of the electric heating tube group 6. For example, the same structure as the first seal and the first end plate is adopted to fix and seal the electric heating tube.

[0042] Reference Figures 1-4 , on the side of the first end plate 22 away from the electric heating tube 7, there is a first cover shell 2. There is a first mixing chamber 3 between the first cover shell 2 and the first end plate 22. The second through hole 11 communicates with the outside through the first mixing chamber 3, and the fluid heated by the electric heating tube is mixed through the first mixing chamber 3.

[0043] Reference Figures 1-4, on the side of the second end plate 25 away from the electric heating tube 7, there is a second cover shell 23. There is a second mixing chamber 24 between the second cover shell 23 and the second end plate 25. The fourth through hole 28 communicates with the outside through the second mixing chamber 24. The fluid is distributed to different fourth through holes 28 through the second mixing chamber 24 and enters the inside or outside of the electric heating tube 7 through the fourth through hole 28.

[0044] As an implementation method, an electric heating tube 7 is arranged between each fourth through hole 28 and the second through hole 11. The device is connected and installed at the position where the fluid of the equipment needs to pass through and needs to be heated. During operation, the fluid first enters the second mixing chamber 24, and all the fluid enters the heating channel 8 of the electric heating tube 7 through the fourth through hole 28 and is heated. The heated fluid enters the first mixing chamber 3 through the second through hole 11 and then is discharged. By adopting this method, since the fluid only passes through the inside of the electric heating tube 7, the heated fluid is high-purity, clean, and there is no risk of metal ion precipitation.

[0045] As another implementation method, electric heating tubes 7 are only arranged between some of the fourth through holes 28 and the second through holes 11. During operation, the fluid first enters the second mixing chamber 24, and then part of the fluid enters the heating channel 8 of the electric heating tube 7 through the fourth through hole 28 and is heated, and part of the fluid enters the chamber between the outside of the electric heating tube 7 and the cylinder shell 1 through the fourth through hole 28, and then enters the first mixing chamber 3 through the second through hole 11. Finally, the first mixing chamber 3 will receive the fluid heated inside the electric heating tube 7 and the fluid heated by the outer wall of the electric heating tube 7. By adopting this method, the fluid resistance is smaller, the heating and heat exchange effect is better, and the service life is longer.

[0046] As an implementation method, refer to Figures 1-9, the heating device includes a cylinder shell 1, a first end plate 22 covering one end of the cylinder shell 1, a second end plate 25 covering the other end of the cylinder shell 1, and a second seal 27. The second seal 27 is arranged at one end of the electric heating tube group 6 away from the first seal 10. The second seal 27 has at least two fourth through holes 28, and the heating channel 8 of each electric heating tube 7 is hermetically communicated with one fourth through hole 28; the first end plate 22 is provided with a number of first through holes 4, the second end plate 25 is provided with a number of third through holes 26, each second through hole 11 is correspondingly communicated with one first through hole 4, and each fourth through hole 28 is correspondingly communicated with one third through hole 26; a first cover shell 2 is fixed on the side of the first end plate 22 away from the electric heating tube 7, and a first mixing chamber 3 is formed between the first cover shell 2 and the first end plate 22. The second through hole 11 is communicated with the outside through the first mixing chamber 3; a second cover shell 23 is fixed on the side of the second end plate 25 away from the electric heating tube 7, and a second mixing chamber 24 is formed between the second cover shell 23 and the second end plate 25. The fourth through hole 28 is communicated with the outside through the second mixing chamber 24; the first end plate 22 and the second end plate 25 are locked by a number of threaded stud assemblies 29. A support shell 30 is arranged on the periphery of the electric heating tube group 6, and a heat insulation layer 31 is arranged between the support shell 30 and the cylinder shell 1. The electric heating tube group 6 is fixed between the first end plate 22 and the second end plate 25 through the threaded stud assemblies 29, and a heat insulation structure is arranged on the outer peripheral side of the electric heating tube group 6.

[0047] During operation, the end where the second cover shell 23 is arranged is set as the fluid inlet end, and the end where the first cover shell 2 is arranged is set as the fluid discharge end. The upstream fluid enters the heating channel 8 inside the electric heating tube 7 and / or the heating space outside through the second mixing chamber 24. After being heated by the electric heating tube 7, the fluid enters the downstream equipment through the first mixing chamber 3 to complete the heating work of the fluid.

[0048] As an implementation manner, the electric heating tube 7 of the present device includes a tube base, a nano electric heating film arranged outside the tube base, an electrode layer in contact with the nano electric heating film, and a metal electrode arranged on the electrode layer. The metal electrode is connected to a controller, and the controller is connected to a power supply. The current and voltage of the nano electric heating film are controlled by the controller to realize the control and adjustment of the input power.

[0049] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes to obtain technical solutions, concepts, and designs, which should all be covered within the protection scope of the present utility model.

Claims

1. A fluid heating device, characterized in that, It includes an electric heating tube group (6) and a first seal (10) with an integrated structure and located at one end of the electric heating tube group (6). The electric heating tube group (6) includes at least two electric heating tubes (7). Any one of the electric heating tubes (7) has a heating channel (8). The first seal (10) has at least two second through holes (11), and the heating channel (8) of each electric heating tube (7) is hermetically connected to one of the second through holes (11).

2. The fluid heating device according to claim 1, characterized in that, On the side of the first seal (10) close to the electric heating tube (7), there are at least two stepped grooves (12). Each stepped groove (12) corresponds to one of the second through holes (11). The end face of the electric heating tube (7) abuts against the first stepped surface (16) of the stepped groove (12), and the outer peripheral wall of the electric heating tube (7) abuts against the first peripheral wall (15) of the stepped groove (12).

3. A fluid heating device according to claim 2, characterized in that, On the side of the first stepped surface (16) close to the electric heating tube (7), there is a first convex ring (13), and the inner peripheral wall of the electric heating tube (7) abuts against the outer peripheral wall of the first convex ring (13).

4. A fluid heating device according to claim 1, characterized in that, A flow disturbing member is arranged inside the electric heating tube (7). The flow disturbing member includes an intermediate tube (17) and a spiral member (18). The heating channel (8) is located between the intermediate tube (17) and the electric heating tube (7), and the spiral member (18) is fixed on the outer wall of the intermediate tube (17).

5. A fluid heating device according to claim 4, wherein, On the side of the first seal (10) close to the electric heating tube (7), there are several grooves (21). The end of the electric heating tube (7) is hermetically fitted with the grooves (21). Inside the first seal (10) and on the inner side of the second through hole (11), there is a third convex ring (20), and the end of the intermediate tube (17) is hermetically fitted with the third convex ring (20).

6. A fluid heating device according to any one of claims 1-5, characterized in that, The heating device includes a cylindrical shell (1). One end of the cylindrical shell (1) is covered with a first end plate (22). The first end plate (22) is provided with several first through holes (4). On the side of the first seal (10) facing the second through hole (11) and away from the electric heating tube (7), there is a second convex ring (14), and at least a part of the second convex ring (14) is inserted into the first through hole (4).

7. A fluid heating device according to claim 6, wherein The heating device includes a second end plate (25) and a second seal (27). The second seal (27) is arranged at the end of the electric heating tube group (6) away from the first seal (10). The second seal (27) has at least two fourth through holes (28), and the heating channel (8) of each electric heating tube (7) is hermetically connected to one of the fourth through holes (28). The second end plate (25) covers the end of the cylindrical shell (1) away from the first end plate (22). The second end plate (25) is provided with several third through holes (26), and each fourth through hole (28) corresponds to and communicates with one of the third through holes (26).

8. A fluid heating device according to claim 7, characterized in that, On the side of the first end plate (22) away from the electric heating tube (7), there is a first cover shell (2). There is a first mixing chamber (3) between the first cover shell (2) and the first end plate (22), and the second through hole (11) communicates with the outside through the first mixing chamber (3).

9. A fluid heating device according to claim 8, characterized in that, A second cover shell (23) is provided on a side of the second end plate (25) away from the electric heating tube (7). A second mixing chamber (24) is formed between the second cover shell (23) and the second end plate (25). The fourth through hole (28) communicates with the outside through the second mixing chamber (24).

10. A fluid heating device according to any one of claims 1, 2, 3, 4, 5, 7 or 9, characterized in that, The heating device includes a cylinder shell (1), a first end plate (22) sealing one end of the cylinder shell (1), a second end plate (25) sealing the other end of the cylinder shell (1), and a second seal (27). The second seal (27) is arranged at an end of the electric heating tube group (6) away from the first seal (10). The second seal (27) has at least two fourth through holes (28). The heating channel (8) of each electric heating tube (7) is hermetically communicated with one of the fourth through holes (28). A plurality of first through holes (4) are provided on the first end plate (22). A plurality of third through holes (26) are provided on the second end plate (25). Each of the second through holes (11) is correspondingly communicated with one of the first through holes (4). Each of the fourth through holes (28) is correspondingly communicated with one of the third through holes (26). A first cover shell (2) is fixed on a side of the first end plate (22) away from the electric heating tube (7). A first mixing chamber (3) is formed between the first cover shell (2) and the first end plate (22). The second through hole (11) communicates with the outside through the first mixing chamber (3). A second cover shell (23) is fixed on a side of the second end plate (25) away from the electric heating tube (7). A second mixing chamber (24) is formed between the second cover shell (23) and the second end plate (25). The fourth through hole (28) communicates with the outside through the second mixing chamber (24). The first end plate (22) and the second end plate (25) are locked by a plurality of threaded post assemblies (29). A support shell (30) is arranged on the periphery of the electric heating tube group (6). A heat insulation layer (31) is arranged between the support shell (30) and the cylinder shell (1).

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