A boiler purging device

Abstract

This utility model relates to the field of pipeline purging technology and discloses a purging device for boilers. One side of the connecting seat is fixedly connected to one end of an air slip ring, and the other end of the air slip ring is fixedly connected to a ball nut on its hollow inner side. One end of the air slip ring is fixedly connected to a fixed column, and one end of the fixed column is fixedly connected to a guide seat. Several air outlet pipes are installed on the outer side of the guide seat. When the ball nut moves on the outer side of the ball screw, the ball nut simultaneously drives one end of the air slip ring to rotate. One end of the air slip ring drives the guide seat to rotate through the fixed column. By connecting the air slip ring to the air pipe, compressed air is introduced into the cavity inside the guide seat through the air slip ring and the air pipe. The gas is then discharged through the air outlet pipe. This device can perform rotary purging of the inside of the branch pipe and reciprocate while performing rotary purging, thereby cleaning the inside of the branch pipe in all directions and improving the cleaning efficiency and cleanliness of the branch pipe.

Description

Technical Field

[0001] This utility model relates to the field of pipeline purging technology, specifically a purging device for boilers. Background Technology

[0002] During long-term boiler operation, the ammonia water used for denitrification contains some impurities. These impurities settle in the ammonia injection denitrification pipeline, causing blockages in the branch pipes and resulting in uneven ammonia injection, which seriously affects the denitrification effect. Therefore, during the ammonia injection denitrification process, operators often choose to shut down the machine intermittently. During the shutdown, compressed air is used to purge the pipeline to blow the blockage impurities into the denitrification tower. However, in the above process, because the ammonia injection branch pipe is relatively long, the thrust of the compressed air decreases when it reaches the end of the branch pipe, and it cannot completely push out the impurities in the ammonia injection branch pipe. Ultimately, the impurities accumulate completely at the outlet where the ammonia injection branch pipe contacts the grid, affecting the denitrification efficiency of the denitrification tower. To address this, a boiler purging device is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a boiler purging device to solve the problem mentioned in the background art that, due to the long length of the ammonia injection branch pipe, the thrust of compressed air decreases when it reaches the end of the branch pipe, which cannot completely push out the impurities in the ammonia injection branch pipe, ultimately causing the impurities to accumulate completely at the outlet where the ammonia injection branch pipe contacts the grid, thus affecting the denitrification efficiency of the denitrification tower.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a boiler purging device, comprising...

[0005] A fixed base, wherein a drive assembly is provided on one side of the fixed base;

[0006] A purging assembly is installed on one side of a fixed base and is used for cleaning the ammonia injection branch pipes of the boiler.

[0007] The purging assembly includes a ball screw, two guide columns, and a connecting seat. The ball screw is fixedly connected to one side of the fixed seat. The two guide columns movably pass through both ends of one side of the fixed seat. The connecting seat is fixedly connected to one end of the two guide columns. One side of the connecting seat is fixedly connected to one end of an air slip ring. The other end of the air slip ring has a ball nut fixedly connected to its hollow inner side. One end of the air slip ring is fixedly connected to a fixed column. One end of the fixed column is fixedly connected to an air guide seat. Several air outlet pipes are installed on the outer side of the air guide seat.

[0008] Preferably, a first through groove is provided on one side of the connecting seat, and the ball screw passes through the inside of the first through groove and is connected to the inside of the ball nut.

[0009] Preferably, one end of the ball nut is fixedly connected to a limiting plate, and the air guide seat is provided with a second through groove.

[0010] Preferably, the air guide seat described above has an internal cavity, and the air outlet pipe is connected to the cavity.

[0011] Preferably, the air outlet of the aforementioned air slip ring is connected to an air guide pipe, and the other end of the air guide pipe is connected to one side of the air guide seat, and the air guide pipe is connected to the air guide seat.

[0012] Preferably, the drive assembly described above includes a multi-stage electric push rod and a fixing plate. The fixing plate is fixedly connected to the other end of the two guide columns, the multi-stage electric push rod is installed on the other side of the fixing base, and the push rod end of the multi-stage electric push rod is fixedly connected to one side of the fixing plate.

[0013] Preferably, the aforementioned fixed base is equipped with two slides, which are movably sleeved on the outside of the two guide posts, and a protective cover is fixedly connected to one side of the connecting base.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] When the ball nut moves outside the ball screw, it simultaneously drives one end of the air slip ring to rotate. The air slip ring drives the air guide seat to rotate through the fixed column. By connecting the air slip ring to the air pipe, compressed air is introduced into the cavity inside the air guide seat through the air slip ring and the air guide pipe. The gas is then discharged through the air outlet pipe. This allows for rotary purging of the inside of the branch pipe. Moreover, the air slip ring moves back and forth while purging, thus cleaning the inside of the branch pipe in all directions, improving the cleaning efficiency and cleanliness of the branch pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the limiting plate structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the air guide seat of this utility model;

[0020] Figure 4 This is a schematic diagram of the connector structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the air guide seat structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Fixed seat; 2. Ball screw; 3. Guide column; 4. Connecting seat; 5. First through groove; 6. Air slip ring; 7. Ball nut; 8. Fixed column; 9. Air guide seat; 10. Air outlet pipe; 11. Air guide pipe; 12. Multi-stage electric push rod; 13. Fixed plate; 14. Cavity; 15. Second through groove; 16. Limiting plate; 17. Protective cover. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0025] Example

[0026] In the existing technology, because the branch pipe for ammonia injection is relatively long, the thrust of compressed air decreases when it reaches the end of the branch pipe, which cannot completely push out the impurities in the ammonia injection branch pipe. As a result, the impurities are completely accumulated at the outlet where the ammonia injection branch pipe contacts the grid, affecting the denitrification efficiency of the denitrification tower.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a boiler purging device, including a fixed base 1, a driving component is provided on one side of the fixed base 1; a purging component is installed on one side of the fixed base 1, and the purging component is used for cleaning the ammonia injection branch pipe of the boiler.

[0028] By setting up a purging assembly, the interior of the branch pipe can be thoroughly cleaned, improving the efficiency and cleanliness of the branch pipe cleaning. The purging assembly includes a ball screw 2, two guide columns 3, and a connecting seat 4. The ball screw 2 is fixedly connected to one side of the fixed seat 1. The two guide columns 3 movably pass through both ends of one side of the fixed seat 1. The connecting seat 4 is fixedly connected to one end of the two guide columns 3. One end of the connecting seat 4 is fixedly connected to one end of an air slip ring 6. The other end of the air slip ring 6 has a ball screw fixedly connected to its hollow inner side. The nut 7 and the air slip ring 6 are fixedly connected to a fixed post 8 at one end, and a guide seat 9 is fixedly connected to the other end of the fixed post 8. Several air outlet pipes 10 are installed on the outside of the air outlet pipe 9. When the ball nut 7 moves outside the ball screw 2, the ball nut 7 simultaneously drives one end of the air slip ring 6 to rotate. One end of the air slip ring 6 drives the guide seat 9 to rotate through the fixed post 8. The gas is discharged through the air outlet pipe 10, which can rotate and purge the inside of the branch pipe. Moreover, it reciprocates while rotating and purging.

[0029] A first through groove 5 is provided on one side of the connecting seat 4. The ball screw 2 passes through the inside of the first through groove 5 and is connected to the inside of the ball nut 7. One end of the ball nut 7 is fixedly connected to the limiting plate 16. A second through groove 15 is provided on the air guide seat 9. The limiting plate 16 can prevent the ball nut 7 from disengaging from the outside of the ball screw 2.

[0030] The air guide seat 9 has an internal cavity 14, and the air outlet pipe 10 is connected to the cavity 14. The air outlet of the medium air slip ring 6 is connected to the air guide pipe 11, and the other end of the air guide pipe 11 is connected to one side of the air guide seat 9. The air guide pipe 11 is connected to the air guide seat 9. By connecting the medium air slip ring 6 to the air pipe, compressed air is introduced into the cavity 14 inside the air guide seat 9 through the medium air slip ring 6 and the air guide pipe 11. The gas is then discharged through the air outlet pipe 10 to clean the branch pipe.

[0031] The drive assembly includes a multi-stage electric push rod 12 and a fixed plate 13. The fixed plate 13 is fixedly connected to the other end of the two guide columns 3. The multi-stage electric push rod 12 is installed on the other side of the fixed base 1. The push rod end of the multi-stage electric push rod 12 is fixedly connected to one side of the fixed plate 13. Two slides are installed on the fixed base 1. The two slides can ensure the smooth movement of the two guide columns 3. The two slides are respectively movably sleeved on the outside of the two guide columns 3. By placing the air slip ring 6 inside the branch pipe, the push rod of the multi-stage electric push rod 12 is extended by controlling the switch group. The push rod of the multi-stage electric push rod 12 drives the fixed plate 13 to move. The fixed plate 13 can drive the two guide columns 3 to slide on the fixed base 1, so that the other end of the two guide columns 3 drives the air slip ring 6 to move through the connecting seat 4. A protective cover 17 is fixedly connected to one side of the connecting seat 4. The protective cover 17 can provide protection for the ball screw 2.

[0032] The working principle or structural principle is as follows: When it is necessary to purge the inside of the branch pipe, the air slip ring 6 is placed inside the branch pipe. The multi-stage electric push rod 12 is extended by controlling the switch group. The push rod of the multi-stage electric push rod 12 drives the fixed plate 13 to move. The fixed plate 13 can drive the two guide columns 3 to slide on the fixed seat 1, so that the other end of the two guide columns 3 drives the air slip ring 6 to move through the connecting seat 4. During this process, the ball nut 7 moves outside the ball screw 2. The ball nut 7 drives one end of the air slip ring 6 to rotate. One end of the air slip ring 6 drives the air guide seat 9 to rotate through the fixed column 8. By connecting the air slip ring 6 to the air pipe, compressed air is introduced into the cavity 14 inside the air guide seat 9 through the air slip ring 6 and the air guide pipe 11. The gas is then discharged through the air outlet pipe 10. This can perform rotational purging of the inside of the branch pipe. At the same time, it reciprocates while rotating and purging, thereby cleaning the inside of the branch pipe in all directions, improving the cleaning efficiency and cleanliness of the branch pipe.

[0033] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A boiler purging device, characterized in that: include A fixed base (1) is provided with a drive assembly on one side of the fixed base (1); A purging assembly is installed on one side of a fixed base (1) and is used for cleaning the ammonia injection branch pipes of the boiler. The purging assembly includes a ball screw (2), two guide columns (3) and a connecting seat (4). The ball screw (2) is fixedly connected to one side of the fixed seat (1). The two guide columns (3) movably pass through both ends of one side of the fixed seat (1). The connecting seat (4) is fixedly connected to one end of the two guide columns (3). One end of the air slip ring (6) is fixedly connected to one side of the connecting seat (4). A ball nut (7) is fixedly connected to the hollow inner side of the other end of the air slip ring (6). A fixed column (8) is fixedly connected to one end of the air slip ring (6). An air guide seat (9) is fixedly connected to one end of the fixed column (8). Several air outlet pipes (10) are installed on the outer side of the air guide seat (9).

2. The boiler purging device according to claim 1, characterized in that: The connecting seat (4) has a first through groove (5) on one side, and the ball screw (2) passes through the inside of the first through groove (5) and is connected to the inside of the ball nut (7).

3. A boiler purging device according to claim 1, characterized in that: One end of the ball nut (7) is fixedly connected to a limiting plate (16), and a second through groove (15) is provided on the air guide seat (9).

4. A boiler purging device according to claim 1, characterized in that: The air guide seat (9) has a cavity (14) inside, and the air outlet pipe (10) is connected to the cavity (14).

5. A boiler purging device according to claim 1, characterized in that: The air outlet of the air slip ring (6) is connected to an air guide pipe (11), and the other end of the air guide pipe (11) is connected to one side of the air guide seat (9). The air guide pipe (11) is connected to the air guide seat (9).

6. A boiler purging device according to claim 1, characterized in that: The drive assembly includes a multi-stage electric push rod (12) and a fixing plate (13). The fixing plate (13) is fixedly connected to the other end of the two guide columns (3). The multi-stage electric push rod (12) is installed on the other side of the fixing seat (1). The push rod end of the multi-stage electric push rod (12) is fixedly connected to one side of the fixing plate (13).

7. A boiler purging device according to claim 1, characterized in that: The fixed seat (1) is equipped with two slides, which are movably sleeved on the outside of the two guide posts (3). A protective cover (17) is fixedly connected to one side of the connecting seat (4).

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