Efficient self-cleaning silicon carbide plate heat exchanger

Abstract

The utility model relates to the technical field of heat exchange, and discloses an efficient self-cleaning silicon carbide plate heat exchanger which comprises a box plate, silicon carbide plate sheets are fixedly connected to the inner wall of the box plate, and a self-cleaning assembly is arranged on the inner wall of the box plate. According to the efficient self-cleaning silicon carbide plate heat exchanger, the brush bristles transversely move to sweep away dust deposited on the upper surfaces of the silicon carbide plates, heat conduction is ensured, heat can be effectively transmitted into fluid, when the transverse rod moves to the bent part, the brush bristles rotate, the brush bristles have the action of throwing away the silicon carbide plates, and therefore the heat exchange efficiency is improved. Meanwhile, the dust attached to the bristles can be thrown out due to the inertia effect, the cleaning effect of the bristles is kept, the bristles can more effectively remove the dust and impurities on the surface of the silicon carbide plate, meanwhile, the bristles and the cleaning comb are staggered, the comb teeth can penetrate into the bristles, and therefore the cleaning effect of the silicon carbide plate is improved. And dust and impurities attached to the bristles can be removed, so that the cleaning state of the bristles can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a high-efficiency self-cleaning silicon carbide plate heat exchanger. Background Technique

[0002] In the field of low-temperature waste heat recovery heat exchangers, heat exchange is carried out between flue gas and media such as air or water to reduce the temperature of the flue gas and increase the temperature of the air or water. There are various forms of heat exchangers, mainly plate type and tubular type. The plate heat exchanger is mainly made of stainless steel plates, and the tubular type is mainly made of enamel tubes.

[0003] According to the publicly announced silicon carbide plate heat exchanger (publication number: CN112146488B), in the above application, it includes a heat exchange box body, a heat exchange component is arranged in the heat exchange box body, a flue gas inlet pipe and a flue gas outlet pipe are arranged at the front and rear ends of the heat exchange box body, and the heat exchange component includes a plurality of silicon carbide heat exchange plates stacked in the heat exchange box body. There is a spacing between adjacent silicon carbide heat exchange plates, and each silicon carbide heat exchange plate includes a silicon carbide plate.

[0004] However, in the actual use process of the above heat exchanger, impurities such as dust and particulate matter contained in the flue gas will enter the interior of the heat exchanger along with the airflow and gradually deposit on the silicon carbide plates during the operation of the heat exchanger, forming a dust layer. The presence of the dust layer will form an insulating layer on the heat transfer surface, hindering the conduction of heat, which will cause the heat not to be effectively transferred to the fluid, thereby reducing the heat exchange efficiency. In view of this, we propose a high-efficiency self-cleaning silicon carbide plate heat exchanger. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-efficiency self-cleaning silicon carbide plate heat exchanger to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A high-efficiency self-cleaning silicon carbide plate heat exchanger, including a box plate, flanges are fixedly connected to both ends of the box plate, silicon carbide plates are fixedly connected to the inner wall of the box plate, and a self-cleaning component is arranged on the inner wall of the box plate. The self-cleaning component includes:

[0007] A bidirectional motor, the bidirectional motor is fixedly connected to the inner wall of the box plate, a threaded rod is fixedly connected to the output end of the bidirectional motor, and a limiting block is threadedly connected to the side wall of the threaded rod;

[0008] A cross bar, the cross bar is movably connected to the limiting block, an installation frame is fixedly connected to the side wall of the cross bar, a brush is fixedly connected to the bottom end face of the installation frame, and a vertical rod is fixedly connected to the top end face of the installation frame;

[0009] The guiding frame is fixedly connected to the top end face of the silicon carbide plate. A limiting frame is fixedly connected to the top end face of the guiding frame, and a stop block is fixedly connected to the bottom of the limiting frame.

[0010] The cleaning comb is fixedly connected to the side wall of the silicon carbide plate.

[0011] Preferably, a convex block is fixedly connected to the bottom end face of the limiting frame.

[0012] Preferably, a limiting rod is fixedly connected to the inner wall of the box plate. A limiting block is sleeved on the side wall of the limiting rod, and the limiting block is movably connected to the cross bar.

[0013] Preferably, the limiting block abuts against the side wall of the guiding frame. When the threaded rod rotates, it drives the limiting block to move horizontally. The inner wall width of the limiting block is equal to the diameter of the cross bar, and the horizontal movement of the limiting block drives the cross bar to move horizontally.

[0014] Preferably, a bent portion is provided at one end of the guiding frame close to the flange. The stop block is located between the bent portion and the guiding frame. The stop block blocks the continuous movement of the vertical rod, and then causes the stop block and the cleaning comb to rotate.

[0015] Preferably, the cleaning comb is arranged on the side of the silicon carbide plate close to the flange, and the cleaning comb is inclined.

[0016] Compared with the prior art, the present utility model provides an efficient self-cleaning silicon carbide plate heat exchanger, which has the following beneficial effects:

[0017] 1. In this efficient self-cleaning silicon carbide plate heat exchanger, through the arranged limiting block, guiding frame, cross bar, bristles, vertical rod and limiting frame, the bristles move horizontally to sweep away the dust deposited on the upper surface of the silicon carbide plate, ensuring heat conduction so that heat can be effectively transferred to the fluid. When the cross bar moves to the bent portion, the bristles rotate, causing the bristles to have an action of throwing off the silicon carbide plate, thereby throwing off the dust from the silicon carbide plate. At the same time, the dust attached to the bristles will also be thrown off due to inertia, maintaining the cleaning effect of the bristles, enabling the bristles to more effectively remove the dust and impurities on the surface of the silicon carbide plate. At the same time, the bristles and the cleaning comb are staggered, and the comb teeth can penetrate into the bristles to help remove the dust and impurities attached to the bristles, thus keeping the bristles in a clean state.

[0018] 2. In this efficient self-cleaning silicon carbide plate heat exchanger, through the arranged convex block, the convex block continuously contacts the vertical rod, enabling the vertical rod to drive the mounting frame and the bristles to rotate. During the rotation and reset process of the bristles, the silicon carbide plate is vibrated and swept, loosening the dust and impurities on the surface of the silicon carbide plate, penetrating into the gaps, and cleaning the surface more thoroughly. At the same time, during the vibration process, the dust on the bristles will also be thrown off, keeping the bristles clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the box board structure of the present utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the box board of the present utility model;

[0022] Figure 4 This is a schematic diagram of the silicon carbide plate structure of the present utility model;

[0023] Figure 5 This is an exploded view of the threaded rod of the present utility model;

[0024] Figure 6 This is a schematic diagram of the guiding frame structure of the present utility model;

[0025] Figure 7 This is an exploded view of the limiting rod of the present utility model.

[0026] In the figure: 1, box board; 2, flange; 3, silicon carbide plate; 4, bidirectional motor; 5, threaded rod; 6, limiting block; 7, cross bar; 8, mounting bracket; 9, brush hair; 10, vertical rod; 11, guiding frame; 12, limiting frame; 13, stop block; 14, cleaning comb; 15, convex block; 16, limiting rod. Specific embodiments

[0027] As Figures 1-7 shown, the present utility model provides a technical solution: an efficient self-cleaning silicon carbide plate heat exchanger, including a box board 1, flanges 2 are fixedly connected to both ends of the box board 1, silicon carbide plates 3 are fixedly connected to the inner wall of the box board 1, a self-cleaning assembly is arranged on the inner wall of the box board 1, and the self-cleaning assembly includes a bidirectional motor 4, a threaded rod 5, a limiting block 6, a cross bar 7, a mounting bracket 8, brush hair 9, a vertical rod 10, a guiding frame 11, a limiting frame 12, a stop block 13, a cleaning comb 14, a convex block 15, and a limiting rod 16.

[0028] In an embodiment of the present utility model, the bidirectional motor 4 is fixedly connected to the inner wall of the box board 1, the output end of the bidirectional motor 4 is fixedly connected to a threaded rod 5, the side wall of the threaded rod 5 is threadedly connected to a limiting block 6, the cross bar 7 is movably connected to the limiting block 6, the limiting block 6 abuts against the side wall of the guiding frame 11, so that the rotation of the threaded rod 5 drives the limiting block 6 to move horizontally, the inner wall width of the limiting block 6 is equal to the diameter of the cross bar 7, the horizontal movement of the limiting block 6 drives the cross bar 7 to move horizontally, a mounting bracket 8 is fixedly connected to the side wall of the cross bar 7, a brush hair 9 is fixedly connected to the bottom end face of the mounting bracket 8, a vertical rod 10 is fixedly connected to the top end face of the mounting bracket 8, a limiting rod 16 is fixedly connected to the inner wall of the box board 1, the side wall of the limiting rod 16 is sleeved with the limiting block 6, and the limiting block 6 is movably connected to the cross bar 7.

[0029] The guide frame 11 is fixedly connected to the top end face of the silicon carbide plate 3. The top end face of the guide frame 11 is fixedly connected with a limit frame 12. A stop block 13 is fixedly connected to the bottom of the limit frame 12. A bending part is provided at one end of the guide frame 11 close to the flange 2. The stop block 13 is located between the bending part and the guide frame 11. The stop block 13 blocks the continued movement of the vertical rod 10, thereby causing the stop block 13 and the cleaning comb 14 to rotate. The cleaning comb 14 is fixedly connected to the side wall of the silicon carbide plate 3. The cleaning comb 14 is arranged on one side of the silicon carbide plate 3 close to the flange 2. The cleaning comb 14 is inclined.

[0030] The bidirectional motor 4 is started to drive the threaded rod 5 to rotate, causing the limit block 6 to move horizontally, further driving the cross bar 7, the mounting frame 8 and the brush hairs 9 to move horizontally. The brush hairs 9 sweep away the dust deposited on the upper surface of the silicon carbide plate 3 to ensure heat conduction, so that heat can be effectively transferred to the fluid.

[0031] When the cross bar 7 moves to the bending part, the vertical rod 10 is blocked by the stop block 13, while the cross bar 7 drives the mounting frame 8 and the brush hairs 9 to continue moving, causing the mounting frame 8 and the brush hairs 9 to rotate, so that the brush hairs 9 have an action of throwing out of the silicon carbide plate 3, thereby throwing the dust out of the silicon carbide plate 3. At the same time, the dust attached to the brush hairs 9 will also be thrown out due to the action of inertia, maintaining the cleaning effect of the brush hairs 9, so that the brush hairs 9 can more effectively remove the dust and impurities on the surface of the silicon carbide plate 3.

[0032] When the brush hairs 9 are thrown out, the brush hairs 9 intersect with the cleaning comb 14, and the teeth of the comb can penetrate into the brush hairs 9 to help remove the dust and impurities attached to the brush hairs 9. In this way, the cleaning state of the brush hairs 9 can be maintained, improving its cleaning effect, so that it can more efficiently clean the surface of the silicon carbide plate 3.

[0033] In addition, a convex block 15 is fixedly connected to the bottom end face of the limit frame 12. When the mounting frame 8 moves horizontally, the convex block 15 continuously contacts the vertical rod 10, causing the vertical rod 10 to drive the mounting frame 8 and the brush hairs 9 to rotate. During the rotation and resetting process of the brush hairs 9, the surface of the silicon carbide plate 3 is vibrated and swept, loosening the dust and impurities on the surface of the silicon carbide plate 3, penetrating into the gaps, and cleaning the surface more thoroughly. At the same time, during the vibration process, the dust on the brush hairs 9 will also be thrown out, maintaining the cleanliness of the brush hairs 9.

[0034] In the present utility model, during use, the bidirectional motor 4 drives the threaded rod 5 to rotate, causing the limit block 6 to move horizontally, driving the cross bar 7, the mounting bracket 8, and the brush bristles 9 to move horizontally. When the cross bar 7 moves to the bending portion, the vertical rod 10 is blocked by the stop block 13, causing the brush bristles 9 to have an action of throwing out the silicon carbide plate 3, throwing the dust out of the silicon carbide plate 3. When the brush bristles 9 are thrown out, the brush bristles 9 intersect with the cleaning comb 14, and the teeth of the comb help to remove the dust and impurities attached to the brush bristles 9. Further, the convex block 15 continuously contacts the vertical rod 10, enabling the vertical rod 10 to drive the mounting bracket 8 and the brush bristles 9 to rotate. During the rotation and resetting of the brush bristles 9, the silicon carbide plate 3 is vibrated and swept, loosening the dust and impurities on the surface of the silicon carbide plate 3.

[0035] The above text has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements that do not depart from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A high-efficiency self-cleaning silicon carbide plate heat exchanger, comprising a box plate (1), wherein both ends of the box plate (1) are fixedly connected with flanges (2), characterized in that: The inner wall of the box plate (1) is fixedly connected with a silicon carbide plate (3), and the inner wall of the box plate (1) is provided with a self-cleaning component, and the self-cleaning component comprises: A bidirectional motor (4), the bidirectional motor (4) being fixedly connected to the inner wall of the box plate (1), the output end of the bidirectional motor (4) being fixedly connected to a threaded rod (5), and the side wall of the threaded rod (5) being threadedly connected to a limit block (6); A cross bar (7), the cross bar (7) being movably connected to the limit block (6), the side wall of the cross bar (7) being fixedly connected to a mounting frame (8), the bottom end surface of the mounting frame (8) being fixedly connected to bristles (9), and the top end surface of the mounting frame (8) being fixedly connected to a vertical bar (10); A guide frame (11), the guide frame (11) being fixedly connected to the top end surface of the silicon carbide plate (3), the top end surface of the guide frame (11) being fixedly connected to a limiting frame (12), and the bottom of the limiting frame (12) being fixedly connected to a stopper (13); A cleaning comb (14), wherein the cleaning comb (14) is fixedly connected to the side wall of the silicon carbide plate (3).

2. The high-efficiency self-cleaning silicon carbide plate heat exchanger according to claim 1, characterized in that: A protrusion (15) is fixedly connected to the bottom end surface of the limiting frame (12).

3. The high-efficiency self-cleaning silicon carbide plate heat exchanger according to claim 1, characterized in that: The inner wall of the box plate (1) is fixedly connected to a limit rod (16), the side wall of the limit rod (16) is sleeved with a limit block (6), and the limit block (6) is movably connected to the cross bar (7).

4. The high-efficiency self-cleaning silicon carbide plate heat exchanger according to claim 1, characterized in that: The limit block (6) abuts against the side wall of the guide frame (11), and the inner wall width of the limit block (6) is equal to the diameter of the cross bar (7).

5. The high-efficiency self-cleaning silicon carbide plate heat exchanger according to claim 1, characterized in that: A bent portion is provided at one end of the guide frame (11) close to the flange (2), and the stopper (13) is located between the bent portion and the guide frame (11).

6. The high-efficiency self-cleaning silicon carbide plate heat exchanger according to claim 1, characterized in that: The cleaning comb (14) is arranged on a side of the silicon carbide plate (3) close to the flange (2), and the cleaning comb (14) is arranged in an inclined manner.

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