Tubular air pre-heater capable of preventing blockage

Abstract

The invention belongs to the technical field of air pre-heaters, and discloses an anti-blocking tubular air pre-heater which comprises a fixed shell, a through hole is formed in the fixed shell, a fixed assembly is fixedly installed in an inner cavity of the fixed shell, and a movable assembly is movably connected to the lower end of the inner cavity of the fixed shell. The fixing assembly comprises a connecting pipeline unit, a cleaning unit is arranged in an inner cavity of the connecting pipeline unit, and the outer wall of the cleaning unit is movably connected with a second cleaning part. Through cooperation of the pipeline body, the fixed pipe and other structures, the first cleaning part and the second cleaning part move to clean the inner wall and the outer wall of the pipeline of the pipeline body, the reciprocating screw continuously rotates to drive the first cleaning part and the second cleaning part to reciprocate, the pipeline of the tubular air pre-heater is rapidly cleaned, and the cleaning efficiency of the pipeline of the tubular air pre-heater is improved. And the pipeline can be cleaned, checked and repaired without professional equipment or personnel, so that the effect of saving the pipeline cleaning cost is achieved.

Description

Technical Field

[0001] This invention belongs to the field of air preheater technology, specifically a tubular air preheater that can prevent blockage. Background Technology

[0002] Tubular air preheaters are widely used devices in heat exchange processes, typically in energy systems such as boilers and steam generators. They usually consist of a series of metal tubes, with hot fluid flowing through the outside and cold fluid flowing through the inside pipes, thereby achieving heat recovery and transfer. They play a significant role in improving energy efficiency and reducing operating costs, especially in high-temperature and high-pressure industrial applications, where they can significantly improve the system's economy and environmental friendliness.

[0003] During the operation of a tubular air preheater, the fluid in the pipeline will carry some impurities during the heat transfer process. The pipeline of the tubular air preheater is easily blocked by deposits or scale. Due to the complex structure of the pipeline, cleaning and maintenance are usually difficult and require professional equipment or personnel for cleaning, inspection and repair. Once a fault or pipeline damage occurs, repair and replacement of the pipeline may also be troublesome and costly. Therefore, it is necessary to improve it. Summary of the Invention

[0004] To address the problems mentioned in the background art, such as the difficulty in cleaning and maintenance, and the potentially troublesome and costly repair and replacement of pipelines, the present invention provides a tubular air preheater that can prevent blockage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tubular air preheater that can prevent blockage, comprising a fixed housing, wherein a through hole is provided inside the fixed housing, a fixed component is fixedly installed in the inner cavity of the fixed housing, a movable component is movably connected to the lower end of the inner cavity of the fixed housing, the fixed component includes a connecting pipe unit, a cleaning unit is provided in the inner cavity of the connecting pipe unit, the outer wall of the cleaning unit is movably connected to the cleaning component, the connecting pipe unit includes a pipe body, a fixed pipe is fixedly connected to the outer wall of the pipe body, the pipe body is fixedly connected to the fixed housing, and the pipe body communicates with the through hole.

[0006] Preferably, the cleaning unit includes a reciprocating screw, a fan blade is fixedly installed on the outer wall of the reciprocating screw, a fixing rod one and a fixing rod two are fixedly installed at both ends of the reciprocating screw respectively, and a cleaning component one is threadedly connected to the outer wall of the reciprocating screw.

[0007] Preferably, the movable component includes a container, a connecting block is fixedly installed on one side of the container, an mounting component is fixedly installed on the side of the fixed housing near the connecting block, and a movable rod is movably connected to the outer wall of the mounting component.

[0008] Preferably, the pipe body has a hole on the side near the fan blade and is connected to the fixed pipe, the lower end of the inner cavity of the pipe body has an oblique groove, and the outer wall of the fixed pipe is provided with a switch valve.

[0009] Preferably, the outer wall of the first cleaning component is provided with a powerful magnet, and the inner wall of the second cleaning component is provided with a powerful magnet, and the magnetic poles of the two powerful magnets are opposite.

[0010] Preferably, the outer wall of the pipe body is provided with a groove, and the inner wall of the groove is smooth. The inner wall of the cleaning component two is provided with a slider, and the cleaning component two is movably connected to the pipe body.

[0011] Preferably, the inner wall of the pipe body is provided with a limiting groove, and the inner wall of the limiting groove is smooth; the outer wall of the cleaning component is provided with a limiting block; and the pipe body and the cleaning component are movably connected.

[0012] Preferably, the first fixing rod and the second fixing rod are fixedly connected to the inner wall of the pipe body, and both sides of the second cleaning component and the first cleaning component are set as inclined surfaces.

[0013] Preferably, the lower end of the container is provided with a movable block, the lower end of the fixed shell is provided with a movable groove, and the upper end of one side of the container is provided with a slot.

[0014] Preferably, the connecting block is L-shaped, the movable rod is movably engaged with the connecting block, and the fixed housing is made of stainless steel.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention, through the coordinated arrangement of a pipeline body and a fixed pipe, allows cleaning components one and two to move and clean the inner and outer walls of the pipeline body. Deposits or scale are discharged through the fixed pipe into the inner cavity of the moving component. Dust removed from the outer wall of the pipeline body falls directly into the inner cavity of the moving component. The reciprocating screw continuously rotates, driving cleaning components one and two to reciprocate, preventing deposits or scale from adhering to the inner and outer walls of the pipeline body. This achieves rapid cleaning of the tubular air preheater pipeline, eliminating the need for specialized equipment or personnel for cleaning, inspection, and repair, thus saving on pipeline cleaning costs.

[0017] This invention, through the coordinated arrangement of a holding tank and a connecting block, cleans deposits or scale from the outer wall and inner cavity of the pipe body within the holding tank. By rotating the moving rod and then pulling the connecting block, the connecting block moves the holding tank out of the inner cavity of the fixed housing, allowing for the rapid cleaning of deposits or scale from the tubular air preheater. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention;

[0020] Figure 3 This is a schematic diagram illustrating the structural fit between the connecting pipe unit and the cleaning unit of the present invention;

[0021] Figure 4 This is a schematic diagram of the disassembled structure at the fixing component of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure at the connection pipe unit of the present invention;

[0023] Figure 6 This is a schematic diagram of the disassembled structure of the moving component in this invention.

[0024] In the diagram: 1. Fixed housing; 2. Through hole; 3. Fixed component; 31. Connecting pipe unit; 311. Pipe body; 312. Fixed pipe; 32. Cleaning unit; 321. Reciprocating screw; 322. Fan blade; 323. Fixed rod one; 324. Fixed rod two; 325. Cleaning component one; 33. Cleaning component two; 4. Moving component; 41. Container box; 42. Connecting block; 43. Mounting component; 44. Moving rod. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1 to 6As shown, the present invention provides a tubular air preheater that can prevent blockage, including a fixed housing 1, a through hole 2 inside the fixed housing 1, a fixed assembly 3 fixedly installed in the inner cavity of the fixed housing 1, a movable assembly 4 movably connected to the lower end of the inner cavity of the fixed housing 1, the fixed assembly 3 including a connecting pipe unit 31, a cleaning unit 32 provided in the inner cavity of the connecting pipe unit 31, the outer wall of the cleaning unit 32 being movably connected to a second cleaning component 33, the connecting pipe unit 31 including a pipe body 311, a fixed pipe 312 fixedly connected to the outer wall of the pipe body 311, the pipe body 311 being fixedly connected to the fixed housing 1, and the pipe body 311 communicating with the through hole 2, the cleaning unit 32 including a reciprocating screw 321, a fan blade 322 fixedly installed on the outer wall of the reciprocating screw 321, a first fixing rod 323 and a second fixing rod 324 fixedly installed at both ends of the reciprocating screw 321, and a first cleaning component 325 threadedly connected to the outer wall of the reciprocating screw 321.

[0027] The above scheme is adopted: through the cooperation of the connecting pipe unit 31 and the cleaning unit 32, during the operation of the tubular air preheater, the cold fluid enters the pipe body 311 through the through hole 2. The cold fluid entering the pipe body 311 drives the fan blade 322 to rotate. The rotation of the fan blade 322 drives the reciprocating screw 321 to rotate. The rotation of the reciprocating screw 321 drives the cleaning component 1 325 to move. The movement of the cleaning component 1 325 drives the cleaning component 2 33 to move. The movement of the cleaning component 1 325 and the cleaning component 2 33 cleans the inner and outer walls of the pipe body 311. The cleaned deposits or scale fall to the lower end of the inner cavity of the pipe body 311 and slide down the inner wall of the pipe body 311 to the fixed pipe 31. At two locations, the cleaned deposits or scale flow through the fixed pipe 312 into the inner cavity of the moving component 4. The dust cleaned from the outer wall of the pipe body 311 falls directly into the inner cavity of the moving component 4. When the first cleaning component 325 moves to the end, the reciprocating screw 321 rotates continuously, driving the first cleaning component 325 and the second cleaning component 33 to reciprocate, thereby continuously cleaning the inner and outer walls of the pipe body 311. This prevents deposits or scale from adhering to the inner and outer walls of the pipe body 311, achieving rapid cleaning of the tubular air preheater's pipes. The pipe cleaning does not require professional equipment or personnel for cleaning, inspection, and repair, thus saving on pipe cleaning costs.

[0028] like Figure 3 , Figure 6 As shown, the movable component 4 includes a container 41, a connecting block 42 is fixedly installed on one side of the container 41, and an mounting component 43 is fixedly installed on the side of the fixed housing 1 near the connecting block 42. A movable rod 44 is movably connected to the outer wall of the mounting component 43.

[0029] The above solution is adopted: through the design of the holding box 41 and the connecting block 42, after a certain period of time, when cleaning the deposits or scale on the outer wall and inner cavity of the pipe body 311 in the holding box 41, the moving rod 44 is rotated, and then the connecting block 42 is pulled. The connecting block 42 drives the holding box 41 to move, so that the holding box 41 is moved out of the inner cavity of the fixed shell 1, and then the deposits or scale in the holding box 41 are cleaned, thus achieving rapid cleaning of the deposits or scale in the tubular air preheater.

[0030] like Figure 4 , Figure 5 As shown, the pipe body 311 has a hole on the side near the fan blade 322 and is connected to the fixed pipe 312. The lower end of the inner cavity of the pipe body 311 has an inclined groove, and the outer wall of the fixed pipe 312 is provided with a switch valve. The outer wall of the pipe body 311 is provided with a sliding groove, and the inner wall of the sliding groove is smooth. The inner wall of the cleaning component 2 33 is provided with a slider. The cleaning component 2 33 is movably connected to the pipe body 311. The inner wall of the pipe body 311 is provided with a limit groove, and the inner wall of the limit groove is smooth. The outer wall of the cleaning component 1 325 is provided with a limit block. The pipe body 311 is movably connected to the cleaning component 1 325.

[0031] The above scheme employs the following method: Through the cooperation of the pipe body 311 and the fixed pipe 312, the opening of the holes in the pipe body 311 connects it to the fixed pipe 312, allowing the deposits or scale cleaned from the inner wall of the pipe body 311 to flow into the fixed pipe 312 through the holes. The bottom of the uppermost pipe body 311 has holes, while the upper and lower sides of the middle and bottom pipe body 311 have holes, allowing the deposits or scale at the top to flow through the fixed pipe 312 and finally into the collection tank 41. The inclined grooves in the pipe body 311 allow the cleaned deposits or scale to collect on one side of the fixed pipe 312 and flow out through it. The design of the valve on the fixed pipe 312 allows... Deposits or scale removed from the pipe body 311 are regularly discharged to avoid affecting the heat transfer efficiency of the tubular air preheater. The design of the sliding groove of the pipe body 311 and the slider of the second cleaning component 33 limits the movement of the second cleaning component 33 when the first cleaning component 325 moves it, making the second cleaning component 33 more stable during movement. The design of the limiting block of the first cleaning component 325 and the limiting groove of the pipe body 311 limits the movement of the first cleaning component 325, making it more stable during movement. The smooth inner wall design of the sliding groove and the limiting groove reduces the friction between the first cleaning component 325 and the second cleaning component 33 when they move, making them easier to move.

[0032] like Figure 3 , Figure 4As shown, a strong magnet is provided on the outer wall of cleaning component 325, and a strong magnet is provided on the inner wall of cleaning component 33. The magnetic poles of the two strong magnets are opposite. Fixing rod 323 and fixing rod 324 are fixedly connected to the inner wall of the pipe body 311. Both sides of cleaning component 33 and cleaning component 325 are set as inclined surfaces.

[0033] The above scheme employs the following method: Through the cooperation of cleaning component 1 325 and cleaning component 2 33, the air entering the pipe body 311 blows the fan blade 322, causing the fan blade 322 to rotate and move cleaning component 1 325. The movement of cleaning component 1 325, in turn, moves cleaning component 2 33. The cooperation of the strong magnets in cleaning components 1 325 and 2 33 ensures that the movement of cleaning component 1 325 drives the movement of cleaning component 2 33. Simultaneously, the movement of cleaning components 1 325 and 2 33 cleans both the outer and inner walls of the pipe body 311. The design of fixing rod 1 323 and fixing rod 2 324 being fixedly connected to the pipe body 311 further enhances the cleaning effect. This design secures the reciprocating screw 321, making it more stable during rotation. The second fixing rod 324 and the first fixing rod 323 are movably connected to the reciprocating screw 321. The inclined surfaces on both sides of the second cleaning component 33 and the first cleaning component 325 allow them to clean the inner and outer walls of the pipe body 311 during reciprocating motion, preventing deposits or scale from clogging the pipe body 311. The cleaning of the outer wall of the pipe body 311 prevents dust from adhering to the outer wall, thus avoiding a reduction in the heat transfer efficiency of the fluid in the pipe.

[0034] like Figure 3 , Figure 6 As shown, a movable block is provided at the lower end of the holding box 41, a movable groove is provided at the lower end of the fixed housing 1, and a slot is provided at the upper end of one side of the holding box 41. The connecting block 42 is L-shaped, and the movable rod 44 is movably engaged with the connecting block 42. The fixed housing 1 is made of stainless steel.

[0035] The above solution employs the following: through the cooperation of the holding box 41 and the fixed housing 1, and the design of the lower moving block of the holding box 41 and the moving groove of the fixed housing 1, the holding box 41 is moved out after a certain period of time to clean the impurities in the holding box 41, thus preventing corrosion caused by excessive impurities in the holding box 41. The design of the groove on the upper side of the holding box 41 prevents damage to the fixed pipe 312 when the holding box 41 is moved. The "L"-shaped design of the connecting block 42 limits the installation part 43, preventing the holding box 41 from shaking. The fixed housing 1 is made of stainless steel, which does not contain harmful substances, has good chemical stability, reduces the risk of harmful substance pollution caused by metal corrosion, has a smooth and hard surface, is not easily stained during cleaning, is very easy to clean, has high mechanical strength and durability, and has a long service life, capable of withstanding long-term use without easily being damaged.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe type air preheater capable of preventing clogging, comprising a fixed shell (1), characterized in that: The inside of the fixed shell (1) is provided with a through hole (2), and the inner cavity of the fixed shell (1) is fixedly installed with a fixed assembly (3), and the lower end of the inner cavity of the fixed shell (1) is movably connected with a moving assembly (4). The fixed assembly (3) comprises a connecting pipeline unit (31), and the inner cavity of the connecting pipeline unit (31) is provided with a cleaning unit (32), and the outer wall of the cleaning unit (32) is movably connected with a cleaning piece two (33). The connecting pipeline unit (31) comprises a pipeline body (311), and the outer wall of the pipeline body (311) is fixedly connected with a fixed pipe (312), and the pipeline body (311) is fixedly connected with the fixed shell (1), and the pipeline body (311) is communicated with the through hole (2).

2. A pipe type air preheater capable of preventing clogging according to claim 1, wherein: The cleaning unit (32) comprises a reciprocating screw (321), and the outer wall of the reciprocating screw (321) is fixedly installed with a fan blade (322), and the two ends of the reciprocating screw (321) are fixedly installed with a fixed rod one (323) and a fixed rod two (324) respectively, and the outer wall of the reciprocating screw (321) is threadedly connected with a cleaning piece one (325).

3. A pipe type air preheater capable of preventing clogging according to claim 1, wherein: The moving assembly (4) comprises a containing box (41), and one side of the containing box (41) is fixedly installed with a connecting block (42), and one side of the fixed shell (1) close to the connecting block (42) is fixedly installed with a mounting piece (43), and the outer wall of the mounting piece (43) is movably connected with a moving rod (44).

4. A pipe type air preheater capable of preventing clogging according to claim 1, wherein: The pipeline body (311) is provided with a hole close to the fan blade (322), and the hole is communicated with the fixed pipe (312), and the inner cavity of the pipeline body (311) is provided with an inclined groove at the lower end, and the outer wall of the fixed pipe (312) is provided with a switch valve.

5. A pipe type air preheater capable of preventing clogging according to claim 2, wherein: The outer wall of the cleaning piece one (325) is provided with a strong magnet, and the inner wall of the cleaning piece two (33) is provided with a strong magnet, and the magnetic poles of the two strong magnets are opposite.

6. A pipe type air preheater capable of preventing clogging according to claim 1, wherein: The outer wall of the pipeline body (311) is provided with a sliding groove, and the inner wall of the sliding groove is smooth, the inner wall of the cleaning piece two (33) is provided with a sliding block, and the cleaning piece two (33) is movably connected with the pipeline body (311).

7. A pipe type air preheater capable of preventing clogging according to claim 2, wherein: The inner wall of the pipeline body (311) is provided with a limiting groove, and the inner wall of the limiting groove is smooth, the outer wall of the cleaning piece one (325) is provided with a limiting block, and the pipeline body (311) is movably connected with the cleaning piece one (325).

8. A pipe type air preheater capable of preventing clogging according to claim 2, wherein: The inner wall of the fixed rod one (323) and the fixed rod two (324) is fixedly connected with the pipeline body (311), and the two sides of the cleaning piece two (33) and the cleaning piece one (325) are provided with inclined surfaces.

9. A pipe type air preheater capable of preventing clogging according to claim 3, wherein: The lower end of the containing box (41) is provided with a moving block, the lower end of the fixed shell (1) is provided with a moving groove, and the upper end of one side of the containing box (41) is provided with a slot.

10. A pipe type air preheater capable of preventing clogging according to claim 3, wherein: The connecting block (42) is provided with an "L" shape, the moving rod (44) is movably connected with the connecting block (42), and the material of the fixed shell (1) is made of stainless steel.

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