Tubular air preheater connecting mechanism
By designing chutes, springs and other structures in the pipe air preheater, the pipes are quickly connected and disassembled and assembled, and sealed through rubber sealing rings is ensured, which solves the problems of serious damage to the pipes and inconvenient disassembly under traditional welding methods. , reduces maintenance costs and avoids air leakage.
Patent Information
- Application Number
- CN202420215365.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-29
AI Technical Summary
The welding and coupling method of traditional pipe air preheaters causes serious damage to the pipe, inconvenient disassembly and assembly, high maintenance costs, and it is difficult to quickly replace the connecting pipe.
A connecting mechanism including slide chute, spring, press plate, collar, round hole, fixing plate, second spring, fixing block, fixing stick, groove, rubber sealing ring is designed to realize the rapid connection and disassembly of the pipe. And seal it through a rubber sealing ring to prevent gas from overflowing.
It realizes rapid disassembly and assembly and replacement of pipes, reduces maintenance costs, ensures sealing effect, and avoids air leakage.
Smart Images
Figure CN222231413U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tubular air preheaters, in particular to a tubular air preheater connection mechanism. Background Art
[0002] Air preheater is a heating surface where the flue gas in the tail flue of the boiler preheats the air before entering the boiler to a certain temperature through the internal heat sink. It is a device used to improve the heat exchange performance of the boiler and reduce energy consumption. Air preheaters are generally divided into three types: plate type, rotary type and tube type.
[0003] Air preheater is a common equipment in boiler production. The ends of the tubular air preheater in traditional boilers are connected by welding, which is easy to cause certain damage to the tubes during welding and is inconvenient to replace. When a tube is damaged and needs to be disassembled, it is easy to cause serious damage to the tube, and the maintenance cost is very high. In view of this, a tubular air preheater connection mechanism is proposed. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies in the prior art, the utility model provides a tubular air preheater connection mechanism, which has the advantages of quick disassembly and assembly for replacing connecting pipes, and solves the problem that the connecting pipes are difficult to disassemble and replace.
[0006] (II) Technical solution
[0007] In order to achieve the above-mentioned purpose of quick disassembly and assembly for replacing the connecting pipe, the utility model provides the following technical solutions: a tubular air preheater connection mechanism, comprising an air preheater body, a heating pipe gallery is arranged inside the air preheater body, a connecting pipe is fixedly installed at the input end of the heating pipe gallery, and a sliding groove is provided on the outer surface of the connecting pipe;
[0008] The connecting mechanism is arranged in the inner wall of the chute, and is used for quick connection and disassembly of the pipeline. The connecting mechanism includes two first springs, and the two first springs are fixedly installed in the inner wall of the chute.
[0009] The sealing mechanism is arranged in the inner wall of the connecting pipe and is used for sealing after the pipes are connected to prevent gas from leaking out. The sealing mechanism comprises a groove which is opened in the inner wall of the connecting pipe.
[0010] Preferably, the connecting mechanism also includes two pressure plates and a ring. The two pressure plates are fixedly mounted on the left ends of the two first springs, and the left ends of the two pressure plates are both inclined. The outer surfaces of the two pressure plates are fixedly mounted with rings, which are slidably mounted in the inner wall of the slide groove.
[0011] Preferably, the connecting mechanism further comprises two circular holes, two fixing plates, two second springs, and two fixing blocks, the two fixing rods and the two circular holes are all opened in the inner wall of the slide slot, the inner walls of the two circular holes are fixedly mounted with fixing plates, and the upper surfaces of the two fixing plates are fixedly mounted with two second springs;
[0012] Among them, two fixing blocks are fixedly installed at the opposite ends of the two second springs, and the right ends of the two fixing blocks are both inclined, and the opposite surfaces of the two fixing blocks are fixedly installed with fixing rods, and the fixing rods are slidably sleeved on the inner surface of the fixing plate.
[0013] Preferably, the connecting mechanism further comprises a connecting pipe and a slot, the connecting pipe is arranged in the inner wall of the connecting pipe, and two slots are provided on the outer surface of the connecting pipe.
[0014] Preferably, the sealing mechanism further comprises a rubber sealing ring, and the rubber sealing ring is fixedly mounted on the outer surface of the connecting pipe.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the utility model provides a tubular air preheater connection mechanism, which has the following beneficial effects:
[0017] 1. The tubular air preheater connection mechanism can realize the rapid installation of the connecting pipe through the clamping structure. Compared with the traditional welding method, this method can complete the rapid disassembly and assembly, and the operation is simple. No additional tools are required, and the pipeline can be replaced quickly, which is more convenient.
[0018] 2. The tubular air preheater connection mechanism can seal and fill the pipe through a rubber sealing ring, making it difficult for air leakage to occur, which is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of a tubular air preheater connection mechanism of the utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the connecting pipeline of the utility model;
[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure in the middle.
[0022] In the figure: 1. air preheater body; 2. heating pipe gallery; 3. connecting pipe; 4. slide groove; 5. first spring; 6. pressure plate; 7. collar; 8. round hole; 9. fixing plate; 10. second spring; 11. fixing block; 12. fixing rod; 13. groove; 14. connecting pipe; 15. slot; 16. rubber sealing ring. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-3 The utility model provides a new technical solution: a tubular air preheater connection mechanism, comprising an air preheater body 1, a heating pipe gallery 2 is arranged inside the air preheater body 1, a connecting pipe 3 is fixedly installed at the input end of the heating pipe gallery 2, and a slide groove 4 is opened on the outer surface of the connecting pipe 3;
[0025] The connecting mechanism is arranged in the inner wall of the chute 4. The connecting mechanism is used for quick connection and disassembly of the pipeline. The connecting mechanism includes two first springs 5. The two first springs 5 are fixedly installed in the inner wall of the chute 4.
[0026] The sealing mechanism is arranged in the inner wall of the connecting pipe 3 . The sealing mechanism is used for sealing after the pipes are connected to prevent gas from leaking out. The sealing mechanism comprises a groove 13 . The groove 13 is opened in the inner wall of the connecting pipe 3 .
[0027] Furthermore, the connecting mechanism also includes two pressing plates 6 and a collar 7. The two pressing plates 6 are fixedly mounted on the left ends of the two first springs 5, and the left ends of the two pressing plates 6 are both inclined. The outer surfaces of the two pressing plates 6 are fixedly mounted with collars 7, and the collars 7 are slidably sleeved in the inner wall of the slide groove 4.
[0028] Furthermore, the connecting mechanism also includes two circular holes 8, two fixing plates 9, two second springs 10, two fixing blocks 11, two fixing rods 12, and two circular holes 8 are all opened in the inner wall of the slide groove 4, the inner walls of the two circular holes 8 are fixedly installed with fixing plates 9, the upper surfaces of the two fixing plates 9 are fixedly installed with two second springs 10, the opposite ends of the two second springs 10 are fixedly installed with two fixing blocks 11, and the right ends of the two fixing blocks 11 are both inclined, the opposite surfaces of the two fixing blocks 11 are fixedly installed with fixing rods 12, and the fixing rods 12 are slidably sleeved on the inner surface of the fixing plate 9,
[0029] Furthermore, the connecting mechanism also includes a connecting pipe 14, a slot 15, and the connecting pipe 14 is arranged in the inner wall of the connecting pipe 3. Two slots 15 are provided on the outer surface of the connecting pipe 3. When the tubular air preheater connecting mechanism is used, a rightward thrust is applied to the sleeve ring 7 to make it slide to the right in the slide groove 4. At the same time, the sleeve ring 7 drives the two pressure plates 6 fixedly installed on the inner wall to move to the right. While moving to the right, the two pressure plates 6 apply rightward pressure to the first spring 5. The first spring 5 is forced to shrink. At this time, the pressure plate 6 is no longer located above the fixed block 11 and no longer applies pressure to the fixed block 11. At the same time, the second spring 10 is no longer under pressure. At this time, the second spring 10 expands. The second spring 10 applies an upward thrust to the fixed block 11 fixedly installed at the upper end, so that the fixed block 11 drives the fixed stick 12 fixedly installed on the lower surface to move upward. At this time, the connecting pipe 14 is inserted into the connecting pipe 3, and the outer surface of the connecting pipe 14 is The opened slot 15 is aligned with the circular hole 8. At this time, no thrust is applied to the ring 7, and the first spring 5 is no longer under stress. At this time, the first spring 5 expands, and the first spring 5 applies a left thrust to the pressure plate 6 fixedly installed at the left end. The pressure plate 6 hits the inclined surface of the fixed block 11 while moving to the left, and applies downward pressure to the fixed block 11 to make it move downward. At the same time, the fixed block 11 applies pressure to the second spring 10 fixedly installed on the lower surface, so that the second spring 10 is forced to contract. At the same time, the fixed block 11 applies a downward thrust to the fixed rod 12 fixedly installed on the lower surface, so that it moves downward and is inserted into the slot 15 for fixation. The tubular air preheater connection mechanism can realize the rapid installation of the connecting pipe through the clamping structure. Compared with the traditional welding method, this method can complete rapid disassembly and assembly, and is simple to operate. It does not require the aid of additional tools, and can quickly complete the replacement of the pipeline, which is more convenient.
[0030] Furthermore, the sealing mechanism also includes a rubber sealing ring 16, which is fixedly installed on the outer surface of the connecting pipe 14. When the connecting pipe 14 is installed, the rubber sealing ring 16 enters the groove 13 for filling and sealing. The tubular air preheater connecting mechanism can seal and fill the pipeline through the rubber sealing ring, which makes it difficult for air leakage to occur, and is more convenient and practical.
[0031] Working principle: When the tubular air preheater connection mechanism is used, a rightward thrust is applied to the sleeve ring 7 to make it slide to the right in the slide groove 4. At the same time, the sleeve ring 7 drives the two pressure plates 6 fixedly installed on the inner wall to move to the right. While moving to the right, the two pressure plates 6 apply rightward pressure to the first spring 5. The first spring 5 contracts under the force. At this time, the pressure plate 6 is no longer located above the fixed block 11 and no longer applies pressure to the fixed block 11. At the same time, the second spring 10 is no longer under pressure. At this time, the second spring 10 expands. The second spring 10 applies an upward thrust to the fixed block 11 fixedly installed at the upper end, so that the fixed block 11 drives the fixed rod 12 fixedly installed on the lower surface to move upward. At this time, the connecting pipe 14 is inserted into the connecting pipe 3, and the connecting pipe 14 is inserted outside. The card slot 15 opened on the surface is aligned with the circular hole 8. At this time, no thrust is applied to the ring 7, and the first spring 5 is no longer under force. At this time, the first spring 5 expands, and the first spring 5 applies a leftward thrust to the pressure plate 6 fixedly installed at the left end. The pressure plate 6 hits the inclined surface of the fixed block 11 while moving to the left, and applies downward pressure to the fixed block 11 to move it downward. At the same time, the fixed block 11 applies pressure to the second spring 10 fixedly installed on the lower surface, so that the second spring 10 is forced to contract. At the same time, the fixed block 11 applies a downward thrust to the fixed rod 12 fixedly installed on the lower surface, so that it moves downward and is inserted into the card slot 15 for fixation. At the same time, when the connecting pipe 14 is installed, the rubber sealing ring 16 enters the groove 13 for filling and sealing.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tubular air preheater connection mechanism, comprising an air preheater body (1), characterized in that: A heating pipe gallery (2) is arranged inside the air preheater body (1); a connecting pipe (3) is fixedly installed at the input end of the heating pipe gallery (2); and a sliding groove (4) is provided on the outer surface of the connecting pipe (3); A connecting mechanism is arranged in the inner wall of the slide groove (4), and is used for quick connection and disassembly of the pipeline. The connecting mechanism comprises two first springs (5), and the two first springs (5) are fixedly installed in the inner wall of the slide groove (4). The sealing mechanism is arranged in the inner wall of the connecting pipe (3). The sealing mechanism is used for sealing after the pipes are connected to prevent gas from leaking out. The sealing mechanism comprises a groove (13). The groove (13) is opened in the inner wall of the connecting pipe (3).
2. A tubular air preheater connection mechanism according to claim 1, characterized in that: The connecting mechanism also includes two pressing plates (6) and a collar (7). The two pressing plates (6) are fixedly mounted on the left ends of the two first springs (5), and the left ends of the two pressing plates (6) are both inclined. The outer surfaces of the two pressing plates (6) are fixedly mounted with the collar (7), and the collar (7) is slidably sleeved in the inner wall of the slide groove (4).
3. A tubular air preheater connection mechanism according to claim 1, characterized in that: The connecting mechanism also includes two circular holes (8), two fixing plates (9), two second springs (10), and two fixing blocks (11). The two fixing rods (12) and the two circular holes (8) are all opened in the inner wall of the slide groove (4). The inner walls of the two circular holes (8) are fixedly mounted with fixing plates (9), and the upper surfaces of the two fixing plates (9) are fixedly mounted with two second springs (10); Two fixing blocks (11) are fixedly mounted on opposite ends of the two second springs (10), and the right ends of the two fixing blocks (11) are both arranged in an inclined surface. Fixing rods (12) are fixedly mounted on opposite surfaces of the two fixing blocks (11), and the fixing rods (12) are slidably sleeved on the inner surface of the fixing plate (9).
4. A tubular air preheater connection mechanism according to claim 1, characterized in that: The connection mechanism further comprises a connecting pipe (14) and a clamping groove (15). The connecting pipe (14) is arranged in the inner wall of the connecting pipe (3), and two clamping grooves (15) are provided on the outer surface of the connecting pipe (3).
5. A tubular air preheater connection mechanism according to claim 1, characterized in that: The sealing mechanism also includes a rubber sealing ring (16), which is fixedly mounted on the outer surface of the connecting pipe (14).