Boiler inner wall solid impurity removing structure

Abstract

The utility model discloses a boiler inner wall solid impurity removing structure which comprises a boiler body and an inner container, the inner container is installed on the inner side of the boiler body, a boiler cover is assembled at the top end of the inner container, a rotating shaft is arranged in an inner cavity of the inner container and is of a hollow structure, the side wall of the rotating shaft is fixedly connected with two hollow rods, and the hollow rods are communicated with an inner cavity of the rotating shaft. One ends of the two hollow rods are fixedly connected with the same hollow rod, the other ends of the two hollow rods are fixedly connected with the same hollow plate, the hollow rods are communicated with the hollow plate, a plurality of rectangular grooves are formed in the side wall of the hollow plate, and scraping plates are movably connected into the rectangular grooves. When impurities which are tightly adhered and high in hardness are encountered, the scraping plate can rebound in time, and the scraping plate is protected.

Description

Technical Field

[0001] This utility model belongs to the field of boiler technology, specifically relating to a structure for removing solid impurities from the inner wall of a boiler. Background Technology

[0002] Boiler internal wall cleaning is one of the important measures to maintain the efficient and safe operation of the boiler. During long-term use, various deposits such as scale, soot, and ash will accumulate on the inner wall of the boiler. These deposits will not only affect the boiler's thermal efficiency, but may also cause equipment damage.

[0003] Traditional cleaning methods often involve directly scraping with a scraper. Since the scraper is usually a single piece, if the impurities adhering to the inner wall of the boiler are tightly packed or have high hardness, the scraper will be subjected to uneven force during the scraping process, which can easily cause local damage or deformation of the scraper, affecting the cleaning effect on the boiler and making it difficult to clean conveniently and efficiently.

[0004] Therefore, it is necessary to provide a structure for removing solid impurities from the inner wall of a boiler. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a structure for removing solid impurities from the inner wall of a boiler.

[0006] This utility model provides a structure for removing solid impurities from the inner wall of a boiler, including a boiler body and an inner liner. The inner liner is installed inside the boiler body, and a boiler cover is fitted to the top of the inner liner. A rotating shaft is provided in the inner cavity of the inner liner. The rotating shaft has a hollow structure, and two hollow rods are connected to the side wall of the rotating shaft. The hollow rods communicate with the inner cavity of the rotating shaft. The other ends of the two hollow rods are connected to the same hollow plate, and the hollow rods communicate with the hollow plate. Several rectangular grooves are opened on the side wall of the hollow plate, and scrapers are movably connected in each of the rectangular grooves. Each scraper has a rebound component on its side wall. An air supply groove is opened on the side wall of the scraper. The air supply groove is T-shaped, and several air outlets are opened on its side wall. A transmission component is provided on the bottom surface of the inner cavity of the boiler body, and a flow guiding component is provided at the top of the rotating shaft.

[0007] Furthermore, the rebound assembly includes several positioning rods fixedly connected to the inner wall of the hollow plate, and each scraper sidewall has two positioning holes. The positioning rods are adapted to the positioning holes, and springs are sleeved on the sidewalls of the positioning rods.

[0008] Furthermore, the transmission assembly includes a motor fixedly connected to the bottom surface of the furnace cavity, the output end of the motor passing through the inner liner and fixedly connected to a hexagonal rod, and a hexagonal sleeve fixedly connected to the bottom end of the rotating shaft, the hexagonal rod being adapted to the hexagonal sleeve.

[0009] Furthermore, the drainage assembly includes a docking rod rotatably connected to the top of the rotating shaft. The end face of the docking rod is provided with an air inlet groove and a water inlet groove. The air inlet groove communicates with the inner cavity of the rotating shaft. The side walls of the air inlet groove and the water inlet groove are both conical structures. An annular shell is fixedly connected to the side wall of the docking rod. The water inlet groove communicates with the annular shell. The side wall of the annular shell is provided with several oblique holes. A docking assembly is provided at the top of the docking rod.

[0010] Furthermore, the docking assembly includes a fixing rod fixedly connected to the side wall of the furnace cover. The end face of the fixing rod has two round holes. The bottom end of the fixing rod is fixedly connected to two tapered tubes at the two round holes. The tapered tubes are respectively inserted into the water inlet groove and the air inlet groove. The top end of the fixing rod is fixedly connected to two quick connectors at the two round holes.

[0011] Furthermore, a sealing ring is fitted to the bottom end face of the fixing rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model uses a hollow plate, scraper, transmission assembly and diversion assembly. It employs multiple scrapers, each with an elastic function. When encountering tightly adhered and hard impurities, the scraper can rebound in time, protecting the scraper. In addition, it can further enhance cleaning efficiency by combining air blowing and water spraying. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a perspective view of the docking assembly of this utility model;

[0017] Figure 4 This is a schematic diagram of the transmission component of this utility model;

[0018] Figure 5 This utility model Figure 2 Enlarged view of point A in the image;

[0019] Figure 6 This utility model Figure 2 Enlarged view of point B in the image.

[0020] The markings in the attached diagram are as follows: 1. Furnace body; 2. Inner liner; 3. Rotating shaft; 4. Hollow rod; 5. Hollow plate; 6. Scraper; 7. Gas supply groove; 8. Gas outlet; 9. Positioning rod; 10. Positioning hole; 11. Spring; 12. Motor; 13. Hexagonal rod; 14. Hexagonal sleeve; 15. Connecting rod; 16. Air inlet groove; 17. Water inlet groove; 18. Fixing rod; 19. Conical tube; 20. Quick connector; 21. Annular shell; 22. Angled hole; 23. Sealing ring; 24. Furnace cover. Detailed Implementation

[0021] This specific embodiment is a structure for removing solid impurities from the inner wall of a boiler, and its structural schematic diagram is shown below. Figures 1-6 As shown, the furnace includes a furnace body 1 and an inner liner 2. The inner liner 2 is installed inside the furnace body 1. A furnace cover 24 is fitted to the top of the inner liner 2. A rotating shaft 3 is installed inside the inner cavity of the inner liner 2. The rotating shaft 3 is a hollow structure. Two hollow rods 4 are fixedly connected to the side wall of the rotating shaft 3. The hollow rods 4 are connected to the inner cavity of the rotating shaft 3. The other end of the two hollow rods 4 is fixedly connected to the same hollow plate 5. The hollow rods 4 are connected to the hollow plate 5. Several rectangular grooves are opened on the side wall of the hollow plate 5. Scrapers 6 are movably connected in each rectangular groove. A rebound component is provided on the side wall of each scraper 6. An air supply groove 7 is opened on the side wall of the scraper 6. The air supply groove 7 is T-shaped. Several air outlet holes 8 are opened on the side wall of the air supply groove 7. A transmission component is provided on the bottom surface of the inner cavity of the furnace body 1. A flow guiding component is provided at the top of the rotating shaft 3.

[0022] like Figure 5 As shown, the spring-loaded assembly includes several positioning rods 9 fixedly connected to the inner wall of the hollow plate 5. Each scraper 6 has two positioning holes 10 on its side wall. The positioning rods 9 are adapted to the positioning holes 10, and springs 11 are sleeved on the side walls of the positioning rods 9. By setting up the spring-loaded assembly, each individual scraper 6 becomes elastic. When it is necessary to adhere to tightly packed impurities, it can extend and retract, thus protecting the scraper 6 and preventing excessive force from damaging the inner liner 2 while scraping impurities.

[0023] like Figure 2 and Figure 4 As shown, the transmission assembly includes a motor 12 fixedly connected to the bottom surface of the inner cavity of the furnace body 1. The output end of the motor 12 passes through the inner liner 2 and is fixedly connected to a hexagonal rod 13. The bottom end of the rotating shaft 3 is fixedly connected to a hexagonal sleeve 14, and the hexagonal rod 13 and the hexagonal sleeve 14 are adapted to each other.

[0024] The transmission assembly allows the rotating shaft 3 and scraper 6 to be easily removed from the inner liner 2, preventing them from affecting the normal use of the inner liner 2. When cleaning is required, the rotating shaft 3 can be inserted and connected to the hexagonal rod 13.

[0025] like Figure 2 and Figure 6As shown, the drainage assembly includes a docking rod 15 rotatably connected to the top of the rotating shaft 3. The end face of the docking rod 15 is provided with an air inlet groove 16 and a water inlet groove 17. The air inlet groove 16 is connected to the inner cavity of the rotating shaft 3. The side walls of the air inlet groove 16 and the water inlet groove 17 are both conical structures. An annular shell 21 is fixedly connected to the side wall of the docking rod 15. The water inlet groove 17 is connected to the annular shell 21. Several oblique holes 22 are provided on the side wall of the annular shell 21. A docking assembly is provided at the top of the docking rod 15.

[0026] The connecting rod 15 and the rotating shaft 3 are connected by a rotating method of an annular block and an annular groove. When the transmission component drives the rotating shaft 3 to rotate, it will not drive the connecting rod 15 to rotate. At the same time, the rotating shaft 3 will not affect the gas injection into the air inlet groove 16, so as to realize the integrated cleaning, gas impact and water washing of the inner liner 2.

[0027] like Figure 2 and Figure 3 As shown, the docking assembly includes a fixing rod 18 fixedly connected to the side wall of the furnace cover 24. Two round holes are formed on the end face of the fixing rod 18. Two tapered tubes 19 are fixedly connected to the bottom end of the fixing rod 18 at the two round holes. The tapered tubes 19 are respectively inserted into the water inlet trough 17 and the air inlet trough 16. Two quick connectors 20 are fixedly connected to the top end of the fixing rod 18 at the two round holes. A sealing ring 23 is fitted to the bottom end face of the fixing rod 18.

[0028] The docking components can be pre-fixed to the furnace cover 24, or they can be adjusted as needed, such as by threading or plugging the fixing rod 18 to the furnace cover 24. In addition, one sealing ring 23 can be set, or two can be set at the air inlet groove 16 and the water inlet groove 17, depending on the actual needs.

[0029] Working principle: When the inner liner 2 needs to be cleaned, first open the furnace cover 24, place the rotating shaft 3 and scraper 6 inside the inner liner 2, and connect the hexagonal sleeve 14 on the rotating shaft 3 with the hexagonal rod 13. Then, close the furnace cover 24 to seal it. At the same time, the conical tube 19 is inserted into the air inlet groove 16 and the water inlet groove 17 respectively. Then, start the motor 12 to drive the rotating shaft 3 to rotate. The rotating shaft 3 drives the hollow plate 5 and scraper 6 to rotate through the hollow rod 4, which removes the impurities adhering to the inner wall of the inner liner 2. If the impurities are tightly adhered, the scraper 6 is forced to move into the inner cavity of the hollow plate 5, and the spring 11 is compressed at the same time. When the scraper 6 passes through the tight impurities, the spring 11 rebounds and drives the scraper 6 to return to its original position.

[0030] At the same time, the two quick connectors 20 can be connected to external water and air sources, and water and air can be injected as needed. When air is injected, the air enters the hollow plate 5 through the air inlet groove 16, the inner cavity of the rotating shaft 3 and the hollow rod 4, and is sprayed out from the air outlet 8 through the air supply groove 7 to blow away the scraped impurities and avoid secondary adhesion.

[0031] When rinsing is required, water is injected into the inlet tank 17, and the water flows into the annular shell 21 and is sprayed out from the inclined hole 22 to rinse the scraped and blown impurities, achieving the purpose of efficient cleaning.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A structure for removing solid impurities from the inner wall of a boiler, comprising a boiler body (1) and an inner liner (2), wherein the inner liner (2) is installed inside the boiler body (1), and a boiler cover (24) is fitted to the top of the inner liner (2), characterized in that: The inner cavity of the inner liner (2) is provided with a rotating shaft (3). The rotating shaft (3) is a hollow structure. Two hollow rods (4) are connected to the side wall of the rotating shaft (3). The hollow rods (4) are connected to the inner cavity of the rotating shaft (3). The other end of the two hollow rods (4) is connected to the same hollow plate (5). The hollow rods (4) are connected to the hollow plate (5). Several rectangular grooves are opened on the side wall of the hollow plate (5). Scrapers (6) are movably connected in each of the rectangular grooves. The side wall of the scrapers (6) is provided with a rebound component. The side wall of the scrapers (6) is provided with an air supply groove (7). The air supply groove (7) is T-shaped. Several air outlets (8) are opened on the side wall of the air supply groove (7). A transmission component is provided on the bottom surface of the inner cavity of the furnace body (1). A flow guide component is provided on the top of the rotating shaft (3).

2. The structure for removing solid impurities from the inner wall of a boiler according to claim 1, characterized in that: The rebound assembly includes several positioning rods (9) fixedly connected to the inner wall of the hollow plate (5). The scraper (6) has two positioning holes (10) on its side wall. The positioning rods (9) are adapted to the positioning holes (10). The side wall of the positioning rods (9) is fitted with springs (11).

3. The boiler inner wall solid impurity removal structure according to claim 1, characterized in that: The transmission assembly includes a motor (12) fixedly connected to the bottom surface of the inner cavity of the furnace body (1). The output end of the motor (12) passes through the inner liner (2) and is fixedly connected to a hexagonal rod (13). The bottom end of the rotating shaft (3) is fixedly connected to a hexagonal sleeve (14). The hexagonal rod (13) and the hexagonal sleeve (14) are compatible.

4. The structure for removing solid impurities from the inner wall of a boiler according to claim 1, characterized in that: The drainage assembly includes a docking rod (15) rotatably connected to the top of the rotating shaft (3). The end face of the docking rod (15) is provided with an air inlet groove (16) and a water inlet groove (17). The air inlet groove (16) is connected to the inner cavity of the rotating shaft (3). The side walls of the air inlet groove (16) and the water inlet groove (17) are both conical structures. An annular shell (21) is fixedly connected to the side wall of the docking rod (15). The water inlet groove (17) is connected to the annular shell (21). The side wall of the annular shell (21) is provided with several oblique holes (22). A docking assembly is provided at the top of the docking rod (15).

5. The structure for removing solid impurities from the inner wall of a boiler according to claim 4, characterized in that: The docking assembly includes a fixing rod (18) fixedly connected to the side wall of the furnace cover (24). The fixing rod (18) has two round holes on its end face. The bottom end of the fixing rod (18) is fixedly connected to two tapered tubes (19) at the two round holes. The tapered tubes (19) are respectively inserted into the water inlet groove (17) and the air inlet groove (16). The top end of the fixing rod (18) is fixedly connected to two quick connectors (20) at the two round holes.

6. The boiler inner wall solid impurity removal structure according to claim 5, characterized in that: A sealing ring (23) is fitted on the bottom end face of the fixing rod (18).

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