Boiler decoking and deashing device

Abstract

The invention relates to the technical field of boiler decoking and deashing, and provides a boiler decoking and deashing device which comprises a spray pipe, the outlet end of the spray pipe is used for spraying fluid to a pipe body in a boiler for cleaning, and the boiler decoking and deashing device further comprises a communication base arranged at the outlet end of the spray pipe and communicated with the spray pipe, the communication base is provided with a drainage port, and the spray pipe sprays fluid to the pipe body through the drainage port; the number of the sealing covers is two, the two sealing covers are oppositely arranged, and the two sealing covers are arranged on the communicating base in an opening and closing mode and used for closing or opening the drainage opening; and the air guide pipe is arranged on the sealing cover, when the sealing cover is closed on the drainage port, a first port of the air guide pipe communicates with the spraying pipe, and a second port of the air guide pipe bypasses the pipe body and points to the side, away from the spraying pipe, of the pipe body. According to the technical scheme, the problems that in the prior art, the back face of the pipe body is not cleaned in place, and the cleaning efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of boiler decoking and ash removal, in particular to a boiler decoking and ash removal device. BACKGROUND

[0002] Boiler decoking and ash removal is a long-term operation and maintenance operation to avoid safety hazards caused by local heat accumulation. When cleaning the pipe body inside the boiler, online cleaning or shutdown cleaning can be achieved through various ways. The mechanical scraping cleaning effect is the most complete after shutdown.

[0003] When cleaning the attachments on the surface of the pipe body, the fluid such as gas or liquid is sprayed out through the spray pipe to break the attachments and make them fall off. However, the pipe body has a circular structure, and the cleaning effect is good at the directly sprayed part, but the attachments on the back may not fall off, and the cleaning is not complete. Under the limitation of space angle, the spray pipe is not convenient to stretch to the back of the pipe body for cleaning, resulting in incomplete cleaning and low cleaning efficiency.

[0004] The problem of incomplete cleaning of the back of the pipe body and low cleaning efficiency in the prior art needs to be solved. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a boiler decoking and ash removal device to solve the problem of incomplete cleaning of the back of the pipe body and low cleaning efficiency in the prior art.

[0006] The technical scheme adopted by the present application is to provide a boiler decoking and ash removal device, comprising a spray pipe, the outlet end of the spray pipe is used to spray fluid to the pipe body in the boiler for cleaning, characterized in that it further comprises: A communication seat is arranged at the outlet end of the spray pipe and communicates with the spray pipe. The communication seat has a flow discharge port, and the spray pipe sprays fluid to the pipe body through the flow discharge port. Two covers are provided, the two covers are oppositely arranged, and the two covers are opened and closed on the communication seat to close or open the flow discharge port. A gas guide pipe is arranged on the cover. When the cover is closed on the flow discharge port, the first port of the gas guide pipe communicates with the spray pipe, and the second port of the gas guide pipe points to the side of the pipe body away from the spray pipe.

[0007] Further optimization of the technical scheme, the gas guide pipe of the boiler decoking and ash removal device has two, the cover has a communication part, one gas guide pipe is arranged on each communication part, the two gas guide pipes are oppositely arranged, and the two gas guide pipes are used to surround the pipe body.

[0008] To further optimize this technical solution, the cover of the boiler desiccant and ash removal device has a connecting portion; it also includes: A cover plate is used to seal the connecting portion.

[0009] To further optimize this technical solution, the air guide pipe of the boiler desiccant and ash removal device includes an arc-shaped section, which is located between the first port and the second port, and is used to bypass the pipe body.

[0010] To further optimize this technical solution, the boiler desiccant and ash removal device also includes: The mounting base has two, with one mounting base provided at each of the second ports. The mounting base has a nozzle, and the air guide tube points to one side of the nozzle.

[0011] To further optimize this technical solution, the boiler desiccant and ash removal device also includes: A cutting tool is provided on the side of the mounting base near the pipe body, and the cutting tool is used to remove attachments on the pipe body.

[0012] To further optimize this technical solution, the cutting component of the boiler descaling and ash removal device is a sawtooth.

[0013] To further optimize this technical solution, the cover of the boiler descaling and ash removal device is hinged to the upper side wall of the nozzle, and further includes: A drive mechanism is used to drive the cover to rotate and open or close.

[0014] The beneficial effects of this invention are as follows: 1. Open the cap to expose the nozzle outlet and clean the front side of the tube. Close the cap and seal the connecting seat to connect the nozzle to the air guide tube. The second port of the air guide tube can be opposite the back side of the tube to effectively clean the deposits on the back of the tube, resulting in better cleaning effect and improved cleaning efficiency.

[0015] 2. After the second port of the air duct passes through the side of the tube or goes around to the back of the tube, the adhering substances on the tube can be removed by tapping or scraping the side wall of the port, thereby improving the cleaning effect and cleaning efficiency.

[0016] 3. The cleaning method and location can be changed by opening and closing the lid, making operation convenient and quick. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A magnified schematic diagram of the structure at point a in the middle; Figure 3 This is a schematic diagram of the front structure of the present invention; Figure 4 This is a schematic diagram of the lower structure of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the cross-sectional structure at position AA; Figure 6 This is a schematic diagram of the installation structure of a single air duct of the present invention; Figure 7 This is a schematic diagram of the sealed closed state structure of the present invention; Figure 8 This is a schematic diagram of the open state structure of the cap of the present invention; The markings in the diagram are as follows: 1. Nozzle; 2. Connecting seat; 201. Drain port; 3. Cover; 301. Connecting part; 4. Air guide pipe; 401. First port; 402. Arc-shaped section; 403. Second port; 5. Cover plate; 6. Mounting seat; 601. Nozzle; 602. Cutting part; 7. Pipe body. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figures 1-8As shown, a boiler ash removal and cleaning device includes a nozzle 1, the outlet end of which is used to spray fluid into the tube body 7 inside the boiler for cleaning. It also includes: a connecting seat 2, disposed at the outlet end of the nozzle 1 and connected to the nozzle 1, the connecting seat 2 having a drain port 201 through which the nozzle 1 sprays fluid into the tube body 7; two caps 3, arranged opposite each other and openable on the connecting seat 2, used to close or open the drain port 201; and a guide pipe 4, disposed on the caps 3. When the caps 3 are closed on the drain port 201, the first port 401 of the guide pipe 4 is connected to the nozzle 1, and the second port 403 of the guide pipe 4 bypasses the tube body 7 and points to the side of the tube body 7 away from the nozzle 1.

[0023] There are two air guide tubes 4. The cover 3 has a connecting part 301. Each connecting part 301 is connected to one air guide tube 4. The two air guide tubes 4 are arranged opposite to each other and are used to surround the tube body 7.

[0024] The cover 3 has a connecting portion 301; it also includes a cover plate 5 for sealing the connecting portion 301.

[0025] In use, the nozzle 1 is connected to the existing cleaning equipment, and removes the deposits on the outside of the pipe body 7 by spraying gas or liquid. The cross-section of the connecting seat 2 can be semi-circular, the drain port 201 is semi-circular, and the cover 3 is a quarter circle that fits the drain port 201. The two oppositely opening and closing covers 3 can completely seal the drain port 201. When the cover 3 is open, the nozzle 1 directly cleans the front of the pipe body 7. After the cover 3 is closed, the nozzle 1 is connected to the air guide pipe 4, and the nozzle passes through the air guide pipe 4 from one side of the pipe body 7 to the back of the pipe body 7. The second port 403 of the air guide pipe 4 is opposite to one side of the back of the pipe body 7 for cleaning.

[0026] A single air guide pipe 4 can be installed on one of the caps 3, connecting to the nozzle 1 via a connecting part 301. The other cap 3 is sealed; it can be a closed structure itself, or a cover plate 5 can be used to block the other cap 3, allowing the nozzle 1 to connect to the air guide pipe 4. The air guide pipe 4 extends from one side of the pipe body 7 to the back side for effective spray cleaning. Installing only one air guide pipe 4 results in a smaller external structure, facilitating movement between multiple pipe bodies 7, improving cleaning efficiency, and increasing spray pressure. The second port 403 of the air guide pipe 4 can be aligned with the back of the pipe body 7 by controlling its curvature. Combined with manual adjustment of the position and angle, efficient cleaning can be achieved. When only the air guide pipe 4 is installed, there are no external mounting parts, resulting in a simple structure and small size. The dimensions shown in the illustration are not intended to represent the actual size and effect.

[0027] Two air guide tubes 4 can also be installed, one on each cap 3, facing each other on both sides. Both air guide tubes 4 clean the back of the tube body 7 by spraying clean air from both sides, reducing blind spots and achieving fast and comprehensive all-around cleaning. The two air guide tubes 4 move closer to each other by rotating the cap 3, but the tube body 7 can enter between the two air guide tubes 4 through the second port 403 of the two tube bodies 7, and then the two air guide tubes 4 move closer to each other, or they can maintain a distance, and spray clean the back of the tube body 7. When the second port 403 of the guide tube passes through the side of the tube body 7 (between the front and side of the tube body 7), it can perform direct blowing cleaning, which can better remove the adhering substances on the side.

[0028] The air guide tube 4 can also scrape and clean the deposits on the surface of the tube body 7 through the end side wall. When two air guide tubes 4 are set, the two air guide tubes 4 are clamped in the middle, which can clamp and break the deposits for quick cleaning. When two air guide tubes 4 are set, the second port 403 of the two air guide tubes 4 can be set with a large interval, so that the fluid can effectively impact the back of the tube body 7, or they can approach each other and flow out of the fluid spray channel.

[0029] The air delivery tube 4 can be a round tube or a square flat tube. When the tube body 7 is distributed in multiple layers, the air delivery tube 4 can be longer to facilitate insertion into deeper positions. In extreme cases, it can be disregarded, or an operable space can be found from multiple angles.

[0030] At the sealing positions of the cap 3 and the drain port 201, existing technology can be used to add sealing strips and other mating sealing structures to improve sealing performance and ensure pressure after the air guide tube 4 is connected. After the cap 3 blocks the drain port 201, the air guide tube 4 can also be omitted, and two injection channels can be formed by using the two connecting parts 301.

[0031] The connecting part 301 on the cover 3 can be a flange structure. The end of the air pipe 4 or the cover plate 5 is adapted to the flange, which facilitates the stable connection of the air pipe 4 or the cover plate 5. At the same time, multiple air pipes 4 of different lengths or shapes can be prepared, which can be selected and replaced according to the actual operating environment.

[0032] Furthermore, the air duct 4 includes an arc-shaped section 402, which is located between the first port 401 and the second port 403, and the arc-shaped section 402 is used to bypass the tube body 7.

[0033] In use, the arc-shaped section 402 of the air guide tube 4 is configured to follow the outer arc of the tube body 7, allowing it to bypass the side of the tube body 7 so that the second port 403 faces the back of the tube body 7. It also occupies less space, making it easy to insert between multiple tube bodies 7. When two air guide tubes 4 are installed, the two arc-shaped sections 402 are located on opposite sides of the guide tube.

[0034] Furthermore, it also includes: a mounting base 6, having two, each of the second ports 403 being provided with a mounting base 6, the mounting base 6 having a nozzle 601, the air guide pipe 4 pointing to one side of the nozzle 1 through the nozzle 601.

[0035] In use, the mounting base 6 is detachably installed on the second port 403 of the air guide tube 4 for easy replacement. The mounting base 6 and the tube body 7 can be used to scrape and clean any adhering substances on the tube body 7. The upper nozzle 601 of the mounting base 6 is set at an angle. When the cover 3 is closed, the tube body 7 is located between the two air guide tubes 4, and the nozzle 601 is tilted towards the back side of the tube body 7.

[0036] Furthermore, it also includes a cutting element 602, which is disposed on the side of the mounting base 6 near the pipe body 7, and the cutting element 602 is used to remove the attached material on the pipe body 7.

[0037] The cutting component 602 has serrated edges.

[0038] In use, the cutting element 602 can be a scraper, shovel, serrated blade, or similar structure. The end of the cutting element 602 can contact the outer surface of the tube body 7, squeezing and pushing away the attached material or sliding on the surface of the tube body 7 to achieve cleaning. The cutting element 602 can be integrated with the mounting base 6 and replaced together, or it can be plugged into and fixed to the mounting base 6, making it easy to replace the cutting element 602 individually if it is damaged. When two cutting elements 602 are arranged opposite each other and have a serrated structure, the tips of the two cutting elements 602 can abut against each other or interlock.

[0039] Furthermore, the cap 3 is hinged to the upper side wall of the nozzle 1, and also includes a drive mechanism for driving the cap 3 to rotate open or close.

[0040] In use, the two side covers 3 are opened and closed, and their rotation and positioning are achieved through a drive mechanism. The cover 3 is hinged to the side wall of the nozzle 1 via a bracket. The two side covers 3 can be driven individually or simultaneously. The drive mechanism can be a motor, mounted on the nozzle 1, with its output end connected to the bracket to drive the cover 3 to rotate; alternatively, the drive mechanism can be a linear reciprocating unit, driven by a linkage transmission to the cover 3. The drive mechanism is a conventional technology and can be implemented by those skilled in the art. For the sake of clarity and simplicity in illustrating the main structure of this application, the drive mechanism is omitted in the accompanying drawings.

[0041] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A boiler descaling and ash removal device, comprising a nozzle (1), the outlet end of which is used to spray fluid into the boiler tubes (7) for cleaning, characterized in that, Also includes: A connecting seat (2) is provided at the outlet end of the nozzle (1) and communicates with the nozzle (1). The connecting seat (2) has a drain port (201). The nozzle (1) sprays fluid into the pipe body (7) through the drain port (201). The cover (3) has two, the two cover (3) are arranged opposite to each other, and the two cover (3) are opened and closed on the connecting seat (2) for closing or opening the drain port (201); An air guide tube (4) is provided on the cover (3). When the cover (3) is closed on the drain port (201), the first port (401) of the air guide tube (4) is connected to the nozzle (1), and the second port (403) of the air guide tube (4) bypasses the tube body (7) and points to the side of the tube body (7) away from the nozzle (1).

2. The boiler descaling and ash removal device according to claim 1, characterized in that, There are two air guide tubes (4), and the cover (3) has a connecting part (301). Each connecting part (301) is connected to one air guide tube (4). The two air guide tubes (4) are arranged opposite to each other, and the two air guide tubes (4) are used to surround the tube body (7).

3. The boiler descaling and ash removal device according to claim 1, characterized in that, The cover (3) has a connecting portion (301); it also includes: Cover plate (5) is used to block the connecting part (301).

4. The boiler descaling and ash removal device according to claim 1, characterized in that, The air duct (4) includes an arc-shaped section (402) located between the first port (401) and the second port (403), and the arc-shaped section (402) is used to bypass the tube body (7).

5. A boiler descaling and ash removal device according to claim 2, characterized in that, Also includes: Mounting base (6), having two, each of the second ports (403) is provided with a mounting base (6), the mounting base (6) having a nozzle (601), the air guide pipe (4) pointing to one side of the nozzle (1) through the nozzle (601).

6. A boiler descaling and ash removal device according to claim 5, characterized in that, Also includes: A cutting element (602) is disposed on the side of the mounting base (6) near the pipe body (7), and the cutting element (602) is used to remove attachments on the pipe body (7).

7. A boiler descaling and ash removal device according to claim 6, characterized in that, The cutting element (602) is a sawtooth.

8. A boiler descaling and ash removal device according to claim 1, characterized in that, The cap (3) is hinged to the upper side wall of the nozzle (1), and further includes: A drive mechanism is used to drive the cover (3) to rotate and open or close.

Images