Combined air preheater

Abstract

The utility model relates to the technical field of air pre-heaters, and discloses a combined air pre-heater which comprises a first air pre-heater, a second air pre-heater is connected to the lower surface of the first air pre-heater in a sliding mode, a box body is connected to the outer wall of the first air pre-heater in a sliding mode, and the outer wall of the box body is connected to the outer wall of the second air pre-heater in a sliding mode. A connecting shaft is fixedly connected to the interior of the box body, a sliding plate is slidably connected to the outer wall of the connecting shaft, and preheating assemblies are arranged in the first air preheater and the second air preheater and used for heating air. According to the air preheater fixing device, the first air preheater and the second air preheater are aligned, the box body slides and is pushed, the clamping blocks are extruded to drive the sliding plates to slide outside the connecting shafts and extrude the springs, and after the clamping blocks are clamped into the first air preheater and the second air preheater, the clamping blocks are clamped in the first air preheater and the second air preheater through spring resilience to be fixed. The effect of improving the connection reliability is achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air preheaters, in particular to a combined air preheater. Background Art

[0002] A combined air preheater is a device that integrates multiple heat exchange functions. It is primarily used in industrial boilers, power plants, and other energy systems. It recovers heat from exhaust gases to raise air temperature, thereby reducing energy consumption and improving system efficiency. To meet specific requirements and ensure stable operation in harsh environments such as high temperatures and high pressures, a combined air preheater is often used.

[0003] The combined air preheater is a device used in the recovery and treatment of exhaust gas. In the past, bolts were often used to fix the air preheater when it was assembled. The bolts will age after long-term use, which can easily cause loosening and affect the stability of the connection. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a combined air preheater, which aims to improve the problem that the previous air preheater is connected by bolts and is prone to aging after long-term use.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a combined air preheater, comprising an air preheater 1, the lower surface of the air preheater 1 being slidably connected to an air preheater 2, the outer wall of the air preheater 1 being slidably connected to a box body, the outer wall of the box body being slidably connected to the outer wall of the air preheater 2, the interior of the box body being fixedly connected to a connecting shaft, the outer wall of the connecting shaft being slidably connected to a slide, the outer wall of the slide being fixedly connected to a paddle, the outer wall of the slide being fixedly connected to a spring, the outer wall of the slide being fixedly connected to a block, the outer wall of the block being slidably connected to the interior of the air preheater 1, the outer wall of the block being slidably connected to the interior of the air preheater 2, and preheating components being provided inside both the air preheater 1 and the air preheater 2, and the preheating components being used to heat air.

[0006] Preferably, the preheating assembly includes a heating plate, the outer wall of the heating plate is fixedly connected to the inside of air preheater one, the outer wall of the heating plate is fixedly connected to the inside of air preheater two, and the outer wall of the heating plate is fixedly connected to a heating pipe.

[0007] Preferably, a connecting plate is fixedly connected to the interior of the air preheater 1, a motor is fixedly connected to the outer wall of the connecting plate, and a first roller is fixedly connected to the output end of the motor.

[0008] Preferably, a conveyor belt is provided on the outer wall of the first roller, a second roller is provided on the inner wall of the conveyor belt, and the outer wall of the second roller is rotatably connected to the inside of the connecting plate.

[0009] Preferably, the outer wall of the conveyor belt is fixedly connected to a fixed shaft, the outer wall of the fixed shaft is rotatably connected to a slider, the outer wall of the slider is slidably connected to a limit block, and the outer wall of the limit block is fixedly connected to a cleaning rod.

[0010] Preferably, the outer wall of the cleaning rod is slidably connected to a filter plate, the outer wall of the filter plate is fixedly connected to the inside of the first air preheater, and the outer wall of the filter plate is fixedly connected to the inside of the second air preheater.

[0011] Preferably, the outer wall of the connecting plate is fixedly connected to the interior of the air preheater.

[0012] Preferably, the outer walls of the air preheater 1 and the air preheater 2 are both fixedly connected with a first sealing tube, and the outer walls of the air preheater 1 and the air preheater 2 are both fixedly connected with a second sealing tube.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the air preheater 1 and the air preheater 2 are aligned, the box body is slid and pushed, the clamping block is squeezed to drive the slide plate to slide on the outer wall of the connecting shaft and squeeze the spring. When the clamping block is inserted into the air preheater 1 and the air preheater 2, the spring rebounds to fix the clamping block inside the air preheater 1 and the air preheater 2, thereby improving the connection reliability and working efficiency.

[0015] 2. In the present invention, the starting motor drives the first roller to rotate, and the first roller drives the second roller to rotate through the conveyor belt. The conveyor belt drives the slider to slide in the limit block through the fixed shaft and pushes the limit block to drive the cleaning rod to slide, and the filter plate is cleaned reciprocally, achieving the effect of automatic cleaning to avoid the effect of air preheating due to filter plate clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a combined air preheater proposed in the utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of an air preheater of a combined air preheater proposed in the present invention;

[0018] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0019] Figure 4This is a partial structural diagram of a filter plate of a combined air preheater proposed in the utility model;

[0020] Figure 5 This is a schematic diagram of the local structure of the fixed axis of a combined air preheater proposed by the utility model.

[0021] Legend:

[0022] 1. Air preheater 1; 2. Air preheater 2; 3. Box body; 4. Connecting shaft; 5. Slide plate; 6. Paddle; 7. Spring; 8. Block; 9. Heating plate; 10. Heating tube; 11. Connecting plate; 12. Motor; 13. First roller; 14. Conveyor belt; 15. Second roller; 16. Fixed shaft; 17. Slider; 18. Limit block; 19. Cleaning rod; 20. Filter plate; 21. First sealing tube; 22. Second sealing tube. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a combined air preheater, including an air preheater 1, the lower surface of the air preheater 1 is slidably connected to the air preheater 2, the outer wall of the air preheater 1 is slidably connected to the box body 3, the outer wall of the box body 3 is slidably connected to the outer wall of the air preheater 2, the interior of the box body 3 is fixedly connected to a connecting shaft 4, the outer wall of the connecting shaft 4 is slidably connected to a slide plate 5, the outer wall of the slide plate 5 is fixedly connected to a paddle 6, the outer wall of the slide plate 5 is fixedly connected to a spring 7, the outer wall of the slide plate 5 is fixedly connected to a clamping block 8, the outer wall of the clamping block 8 is slidably connected to the interior of the air preheater 1, the outer wall of the clamping block 8 is slidably connected to the interior of the air preheater 2, and a preheating component is provided inside the air preheater 1 and the air preheater 2, and the preheating component is used to heat air.

[0025] Specifically, the air preheater 1 and the air preheater 2 are docked, and the box body 3 is pressed so that the block 8 pushes the slide plate 5 to slide after being subjected to external extrusion force. The slide plate 5 is supported by the connecting shaft 4 fixed inside the box body 3, so that the spring 7 is squeezed by the sliding of the slide plate 5, and the slide plate 5 is slid into the interior of the air preheater 1 and the air preheater 2. When the block 8 slides to the slot opened inside the air preheater 1 and the air preheater 2, the spring 7 will rebound, and the block 8 will be stuck in the interior of the air preheater 1 and the air preheater 2, so that the air preheater 1 and the air preheater 2 are fixed. The box body 3 is provided on both sides of the air preheater 1 and the air preheater 2 for a firm connection.

[0026] Reference Figure 4 The preheating assembly includes a heating plate 9, the outer wall of the heating plate 9 is fixedly connected to the inside of the air preheater 1, the outer wall of the heating plate 9 is fixedly connected to the inside of the air preheater 2, and the outer wall of the heating plate 9 is fixedly connected to the heating pipe 10.

[0027] Specifically, the air inside the air preheater 1 and the air preheater 2 2 can be preheated by the heating plate 9 and the heating tube 10 .

[0028] Reference Figure 4 and Figure 5 The interior of the air preheater 1 is fixedly connected with a connecting plate 11, the outer wall of the connecting plate 11 is fixedly connected with a motor 12, the output end of the motor 12 is fixedly connected with a first roller 13, the outer wall of the first roller 13 is provided with a conveyor belt 14, the inner wall of the conveyor belt 14 is provided with a second roller 15, the outer wall of the second roller 15 is rotatably connected to the interior of the connecting plate 11, the outer wall of the conveyor belt 14 is fixedly connected with a fixed shaft 16, the outer wall of the fixed shaft 16 is rotatably connected with a slider 17, the outer wall of the slider 17 is slidably connected to a limit block 18, the outer wall of the limit block 18 is fixedly connected with a cleaning rod 19, the outer wall of the cleaning rod 19 is slidably connected with a filter plate 20, the outer wall of the filter plate 20 is fixedly connected to the interior of the air preheater 1, the outer wall of the filter plate 20 is fixedly connected to the interior of the air preheater 2, and the outer wall of the connecting plate 11 is fixedly connected to the interior of the air preheater 1.

[0029] Specifically, the connecting plate 11 is fixed inside the air preheater 1 and the air preheater 2, and plays a fixing role for the motor 12. The motor 12 can drive the first roller 13 to rotate, and then the second roller 15 is rotated by the rotation of the conveyor belt 14, ensuring the stable operation of the conveyor belt 14. The slider 17 slides in the slider 17 through the fixed shaft 16 through the conveyor belt 14, and then the limit block 18 drives the cleaning rod 19 to clean the filter plate 20 back and forth through the sliding of the slider 17. During the preheating process, the preheating effect will not be affected by the work of the cleaning rod 19.

[0030] Reference Figure 1 The outer walls of air preheater 1 and air preheater 2 are fixedly connected with a first sealing tube 21, and the outer walls of air preheater 1 and air preheater 2 are fixedly connected with a second sealing tube 22.

[0031] Specifically, by opening the first sealing tube 21, air can enter the interior of the air preheater 1 and the air preheater 2 for preheating treatment. The treated air can be discharged through the air preheater 2, which can also achieve a good sealing effect during the preheating process.

[0032] Working principle: When the combined preheater is needed, align the air preheater 1 and the air preheater 2 and stack them together, slide the box body 3 on the outer wall of the air preheater 1 and the air preheater 2, align the slide plate 5 and the block 8 with the grooves on the outer wall of the air preheater 1 and the air preheater 2, press the box body 3, when the slide plate 5 and the block 8 are squeezed by the air preheater 1 and the air preheater 2, the block 8 will drive the slide plate 5 to slide on the outer wall of the connecting shaft 4, when the slide plate 5 squeezes the spring 7 at the same time during the sliding process, when the block 8 slides to the inner opening of the air preheater 1 and the air preheater 2 After the card slot is inserted, it will be stuck in the interior of the air preheater 1 and the air preheater 2. At this time, the rebound of the spring 7 will push the slide plate 5 to stick the card block 8 in the interior of the air preheater 1 and the air preheater 2, so as to fix the air preheater 1 and the air preheater 2, thereby improving the reliability of the connection between the air preheater 1 and the air preheater 2, and ensuring that the air preheater 1 and the air preheater 2 have better stability when in use. Since the filter plate 20 is easily clogged with dust during the process of preheating the air by the air preheater 1 and the air preheater 2, it is necessary to automatically clean it to prevent clogging. By opening the first sealed tube 21, air is allowed to enter the interior of the air preheater 1 and the air preheater 2, and is preheated by the heating plate 9 and the connecting plate 11, and is discharged through the second sealed tube 22. The connecting plate 11 is started, and the connecting plate 11 has a fixing effect on the motor 12. The motor 12 drives the first roller 13 to rotate. When the first roller 13 rotates, it drives the conveyor belt 14 on the outer wall to rotate. The conveyor belt 14 drives the second roller 15 on the inner wall to rotate inside the connecting plate 11. The conveyor belt 14 drives the fixed shaft 16 to rotate, and the fixed shaft 16 simultaneously drives the slider 17 on the outer wall to slide on the inner wall of the limit block 18. , and pushes the limit block 18 to slide. When the limit block 18 slides, it will drive the cleaning rod 19 to clean the filter plate 20 reciprocatingly. Through continuous cleaning, it can be ensured that during the air preheating process, the dust in the air will not clog the filter plate 20 and affect the preheating effect, thereby achieving the effect of preventing the filter plate 20 from being blocked and affecting the air preheating through automatic cleaning. This combined preheater can not only achieve the effect of quickly combining the air preheater 1 and the air preheater 2, ensuring the stability of the connection and improving the energy efficiency, but also automatically clean the filter plate 20 during the preheating process to prevent the preheating effect from being affected by the blockage of the filter plate 20.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined air preheater, comprising an air preheater (1), characterized in that: The lower surface of the air preheater 1 (1) is slidably connected to the air preheater 2 (2), the outer wall of the air preheater 1 (1) is slidably connected to the box body (3), the outer wall of the box body (3) is slidably connected to the outer wall of the air preheater 2 (2), the interior of the box body (3) is fixedly connected to a connecting shaft (4), the outer wall of the connecting shaft (4) is slidably connected to a slide plate (5), the outer wall of the slide plate (5) is fixedly connected to a paddle (6), the outer wall of the slide plate (5) is fixedly connected to a spring (7), the outer wall of the slide plate (5) is fixedly connected to a clamping block (8), the outer wall of the clamping block (8) is slidably connected to the interior of the air preheater 1 (1), the outer wall of the clamping block (8) is slidably connected to the interior of the air preheater 2 (2), and the interiors of the air preheater 1 (1) and the air preheater 2 (2) are both provided with preheating components, and the preheating components are used to heat air.

2. A combined air preheater according to claim 1, characterized in that: The preheating assembly comprises a heating plate (9), the outer wall of which is fixedly connected to the interior of the first air preheater (1), the outer wall of which is fixedly connected to the interior of the second air preheater (2), and the outer wall of which is fixedly connected to a heating pipe (10).

3. The combined air preheater according to claim 1, characterized in that: The interior of the air preheater (1) is fixedly connected to a connecting plate (11), the outer wall of the connecting plate (11) is fixedly connected to a motor (12), and the output end of the motor (12) is fixedly connected to a first roller (13).

4. A combined air preheater according to claim 3, characterized in that: The outer wall of the first roller (13) is provided with a conveyor belt (14), the inner wall of the conveyor belt (14) is provided with a second roller (15), and the outer wall of the second roller (15) is rotatably connected to the inside of the connecting plate (11).

5. The combined air preheater according to claim 4, characterized in that: The outer wall of the conveyor belt (14) is fixedly connected to a fixed shaft (16), the outer wall of the fixed shaft (16) is rotatably connected to a slider (17), the outer wall of the slider (17) is slidably connected to a limit block (18), and the outer wall of the limit block (18) is fixedly connected to a cleaning rod (19).

6. The combined air preheater according to claim 5, characterized in that: The outer wall of the cleaning rod (19) is slidably connected to a filter plate (20), the outer wall of the filter plate (20) is fixedly connected to the inside of the first air preheater (1), and the outer wall of the filter plate (20) is fixedly connected to the inside of the second air preheater (2).

7. The combined air preheater according to claim 3, characterized in that: The outer wall of the connecting plate (11) is fixedly connected to the interior of the air preheater (1).

8. The combined air preheater according to claim 1, characterized in that: The outer walls of the air preheater 1 (1) and the air preheater 2 (2) are both fixedly connected with a first sealing tube (21), and the outer walls of the air preheater 1 (1) and the air preheater 2 (2) are both fixedly connected with a second sealing tube (22).

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