Surface cooler capable of cleaning ash on line

Abstract

The utility model relates to a surface cooler capable of cleaning ash on line, which comprises a support component, a first air distribution chamber, a second air distribution chamber, two cooling pipes, four short pipes, four rotating rods, a plurality of scrapers, a driving piece, an air inlet and an air outlet, and the first air distribution chamber and the second air distribution chamber are symmetrically arranged on the support component. The two cooling pipes are symmetrically arranged at the top of the first air distribution chamber and the top of the second air distribution chamber, the four short pipes are symmetrically arranged at the tops of the two cooling pipes, the four rotating rods are arranged on the four short pipes respectively, and the multiple scrapers are alternately distributed on the rotating rods located in the cooling pipes. And the driving piece is arranged at the top of the rotating rod. Through mutual cooperation of the cooling pipe, the short pipe, the rotating rod, the scraper and the driving piece, the effect of better removing ash attached to the inner wall of the surface cooler is achieved, and therefore the heat exchange effect of the cooling pipe is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a surface cooler that can clean ash on line. BACKGROUND

[0002] The surface cooler is mainly used for reducing the temperature of dust-containing flue gas discharged from the incinerator, so as to facilitate the subsequent waste heat utilization of the flue gas. The high-temperature flue gas often carries dust. When the current surface cooler cools and reduces the temperature of the high-temperature flue gas, the cooling effect of the surface cooler will gradually decrease with the continuous increase of the ash accumulated on the inner wall of the cooling pipe. If the ash content in the high-temperature flue gas is high, frequent shutdown for cleaning is often required, which seriously affects the long-period operation index of the device. To this end, a cleaning device for cleaning the inner wall of the surface cooler is used, such as the automatic knocking device for surface cooler pipeline disclosed in the patent No. CN 214747485 U, which comprises a flail, a flail seat and a knocking driving mechanism. The flail comprises a hammer head and a hammer handle. The flail seat is fixed to the outer wall of the surface cooler pipeline. The hammer handle is hinged to the flail seat at a position close to the tail end. The knocking driving mechanism is arranged at the tail end of the hammer handle to realize automatic knocking and cleaning of the surface cooler pipeline, which not only reduces the labor intensity of cleaning operation, but also improves the cleaning efficiency. However, some dust still adheres to the inner wall of the surface cooler and cannot be removed, which affects the cooling effect of the surface cooler. SUMMARY

[0003] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] The technical problem to be solved by the utility model is how to better remove the ash adhering to the inner wall of the surface cooler.

[0005] To solve the above technical problems, the utility model provides technical scheme as follows: A surface cooler of on -line dust cleaning, including support component, first air distribution chamber, second air distribution chamber, two cooling pipes, four short pipes, four rotating rods, a plurality of scrapers, driving piece, air inlet and air outlet, first air distribution chamber and second air distribution chamber symmetry sets up on support component, two cooling pipes symmetry sets up at the top of first air distribution chamber and second air distribution chamber, the outer surface of cooling pipe exposes to the atmosphere, four short pipes symmetry sets up at the top of two cooling pipes, four rotating rods set up on four short pipes respectively, rotating rod passes through cooling pipe, a plurality of scrapers are alternately distributed on rotating rod in cooling pipe, for removing the ash that accumulates in the inner wall of cooling pipe, driving piece sets up at the top of rotating rod, for driving rotating rod rotation, air inlet sets up at one side of first air distribution chamber, air outlet sets up at the side of second air distribution chamber far from air inlet.

[0006] As a preferred scheme of the surface cooler of on -line dust cleaning, wherein: the driving piece includes a fixed frame and a hand wheel, the fixed frame is arranged on the top of the rotating rod, and the hand wheel is arranged on the fixed frame to drive the rotating rod to rotate.

[0007] As a preferred scheme of the surface cooler of on -line dust cleaning, wherein: the short pipe is provided with an internal thread, and the top of the rotating rod to the connecting part of the short pipe is provided with an external thread matched with the internal thread, which can not only ensure the rotation of the rotating rod, but also can isolate the atmosphere from the high-temperature flue gas.

[0008] As a preferred scheme of the surface cooler of on -line dust cleaning, wherein: the bottom of the first air distribution chamber and the second air distribution chamber is provided with an ash hopper with a certain inclination, which is used for receiving and storing the ash falling from the inner wall of the cooling pipe during operation, so as to avoid the blockage of the air chamber.

[0009] As a preferred scheme of the surface cooler of on -line dust cleaning, wherein: the ash hopper is provided with a refractory lining to play a certain protection role.

[0010] As a preferred scheme of the surface cooler of on -line dust cleaning, wherein: the first air distribution chamber and the second air distribution chamber are provided with a reinforcing rib outside, so as to increase the structural strength of the cooler as a whole.

[0011] As a preferred scheme of the surface cooler of on -line dust cleaning, wherein: the cooling pipe is in the shape of a camel hump, and the cooling pipe is vertically arranged at the top of the first air distribution chamber and the second air distribution chamber, so as to facilitate the falling of the settled smoke dust and ensure the heat exchange effect of the cooling pipe.

[0012] Beneficial effects: through the cooperation between the cooling pipe, the short pipe, the rotating rod, the scraping piece and the driving piece, the effect of better removing the dust adhered to the inner wall of the surface cooler is realized, and the heat exchange effect of the cooling pipe is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor. Among them:

[0014] Figure 1 It is a schematic diagram of the overall structure of the surface cooler which can clean dust online.

[0015] Figure 2 It is a top view of the surface cooler which can clean dust online.

[0016] In the figure: 1, support member; 2, first air distribution chamber; 3, second air distribution chamber; 4, cooling pipe; 5, short pipe; 6, rotating rod; 7, scraping piece; 8, air inlet; 9, air outlet; 10, fixing frame; 11, hand wheel; 12, dust hopper; 13, reinforcing rib. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0018] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0019] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment.

[0020] EMBODIMENT

[0021] REFERENCE Figure 1 and Figure 2The embodiment provides a surface cooler capable of online ash removal, which comprises a supporting member 1, a first air distribution chamber 2, a second air distribution chamber 3, two cooling pipes 4, four short pipes 5, four rotating rods 6, a plurality of scrapers 7, a driving member, an air inlet 8 and an air outlet 9, the first air distribution chamber 2 and the second air distribution chamber 3 are symmetrically arranged on the supporting member 1, the two cooling pipes 4 are symmetrically arranged on the top of the first air distribution chamber 2 and the second air distribution chamber 3, the outer surface of the cooling pipe 4 is exposed to the atmosphere, further, the cooling pipe 4 is in the shape of a hump, the cooling pipe 4 is vertically arranged on the top of the first air distribution chamber 2 and the second air distribution chamber 3, the four short pipes 5 are symmetrically arranged on the top of the two cooling pipes 4, the four rotating rods 6 are arranged on the four short pipes 5 respectively, the rotating rod 6 penetrates through the cooling pipe 4, the plurality of scrapers 7 are alternately arranged on the rotating rod 6 in the cooling pipe 4, which are used for removing the ash accumulated on the inner wall of the cooling pipe 4, the driving member is arranged on the top of the rotating rod 6, which is used for driving the rotating rod 6 to rotate, the air inlet 8 is arranged on one side of the first air distribution chamber 2, and the air outlet 9 is arranged on the side of the second air distribution chamber 3 far away from the air inlet 8.

[0022] The support member 1 is installed as the installation base of the surface cooler, the first air distribution chamber 2 and the second air distribution chamber 3 are symmetrically installed on the support member 1, two cooling pipes 4 are symmetrically installed on the top of the first air distribution chamber 2 and the second air distribution chamber 3, the air inlet end of the cooling pipe 4 is communicated with the inner cavity of the first air distribution chamber 2, the air outlet end of the cooling pipe 4 is communicated with the inner cavity of the second air distribution chamber 3, that is, the first air distribution chamber 2 and the second air distribution chamber 3 are communicated through the cooling pipe 4, and the outer surface of the cooling pipe 4 is completely exposed to the atmosphere, when the high-temperature flue gas flows through the cooling pipe 4, the high-temperature flue gas exchanges heat with the atmosphere, and the excess heat is absorbed by the atmosphere to achieve the purpose of cooling the high-temperature flue gas, further, the cooling pipe 4 is in the shape of a hump as a whole, and the cooling pipe 4 is vertically installed on the top of the first air distribution chamber 2 and the second air distribution chamber 3, so that the settled dust can smoothly fall off, and the heat exchange effect of the cooling pipe 4 is ensured; four short pipes 5 are symmetrically installed on the top of the two cooling pipes 4, the short pipe 5 is communicated with the inside of the cooling pipe 4, four rotating rods 6 are respectively installed on the four short pipes 5, the four rotating rods 6 all extend into the cooling pipe 4 and penetrate through the cooling pipe 4, a plurality of scrapers 7 are alternately installed on the outer surface of the rotating rod 6 in the cooling pipe 4, the outer side edge of the scraper 7 is in the shape of a circular arc and abuts against the inner wall of the cooling pipe 4, so as to better remove the ash accumulated on the inner wall of the cooling pipe 4, and the lower surface and the upper surface of the adjacent two scrapers 7 are in the same horizontal plane, so as to be able to sufficiently remove the ash adhered to the inner wall of the cooling pipe 4, the number of the scrapers 7 can be selected according to actual use requirements, and the number of the scrapers 7 in the embodiment is four, a driving member is installed on the top of the rotating rod 6, the rotating rod 6 can be driven to rotate through the driving member, an air inlet 8 is arranged on the left side of the first air distribution chamber 2, so that the high-temperature flue gas can enter the first air distribution chamber 2 through the air inlet 8, and an air outlet 9 is arranged on the right side of the second air distribution chamber 3, so that the cooled flue gas in the second air distribution chamber 3 can flow out of the second air distribution chamber 3.

[0023] Specifically, the driving member includes a fixing frame 10 and a hand wheel 11, the fixing frame 10 is arranged on the top of the rotating rod 6, and the hand wheel 11 is arranged on the fixing frame 10.

[0024] The driving member is mainly composed of the fixing frame 10 and the hand wheel 11, the fixing frame 10 is installed on the top of the rotating rod 6, the hand wheel 11 is installed on the fixing frame 10, the hand wheel 11 can drive the rotating rod 6 to rotate through the fixing frame 10 by manually rotating the hand wheel 11, so as to achieve the effect of driving the rotating rod 6 to rotate, and the ash removal period can be adjusted according to the actual ash accumulation condition, in other embodiments, the driving member can also adopt a servo motor, the output shaft of the servo motor is directly connected with the top of the rotating rod 6, the rotating rod 6 can be driven to rotate by controlling the servo motor, and the ash removal period can also be adjusted according to the actual ash accumulation condition, thereby reducing the labor intensity of the workers.

[0025] Further, the short pipe 5 is provided with an internal thread, and the top of the rotating rod 6 is provided with an external thread matched with the internal thread.

[0026] In the embodiment, the short pipe 5 is provided with an internal thread, and the top of the rotating rod 6 is provided with an external thread matched with the internal thread, so that the short pipe 5 is connected with the rotating rod 6 through the thread, which not only ensures the rotation of the rotating rod 6, but also insulates the atmosphere from the high-temperature flue gas. In addition, the thread connection between the short pipe 5 and the rotating rod 6 enables the rotating rod 6 to extend into the cooling pipe 4 while rotating, so that the scraper 7 moves up and down in a spiral state, further achieving the effect of better removing the ash adhered to the inner wall of the surface cooler.

[0027] Further, the bottom of the first air distribution chamber 2 and the second air distribution chamber 3 is provided with an ash hopper 12 with a certain inclination.

[0028] In the embodiment, the bottom of the first air distribution chamber 2 and the second air distribution chamber 3 is provided with an ash hopper 12 with a certain inclination, so as to receive and store the ash falling off from the inner wall of the cooling pipe 4 during operation, avoiding the blockage of the air chamber. In the embodiment, the inner surface of the ash hopper 12 is provided with a refractory lining, which protects the ash hopper 12.

[0029] Further, the first air distribution chamber 2 and the second air distribution chamber 3 are provided with a reinforcing rib 13.

[0030] In the embodiment, the first air distribution chamber 2 and the second air distribution chamber 3 are provided with a reinforcing rib 13, which increases the structural strength of the air distribution chamber, thereby ensuring the normal operation of the surface cooler.

[0031] When it is necessary to remove the ash on the inner wall of the cooling pipe 4, the worker can manually rotate the hand wheel 11 in the forward direction, and the hand wheel 11 drives the rotating rod 6 to rotate in the forward direction, so that the rotating rod 6 extends into the cooling pipe 4 while rotating, and the scraper 7 moves downward in a spiral state, thereby removing the ash on the inner wall of the cooling pipe 4. When the rotating rod 6 extends into the cooling pipe 4 by a certain distance, the worker can rotate the hand wheel 11 in the reverse direction, so that the scraper 7 moves upward in a spiral state, thereby further removing the ash on the inner wall of the cooling pipe 4, and the worker can repeat the above operation to sufficiently remove the ash on the inner wall of the cooling pipe 4. The falling ash directly falls into the ash hopper 12 at the bottom of the air distribution chamber, so as to receive and store the ash, avoiding the blockage of the air chamber.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A surface cooler that can be cleaned online, characterized in that: The utility model provides a kind of air distribution device, including support member (1), first air distribution chamber (2), second air distribution chamber (3), two cooling pipes (4), four short pipes (5), four rotating rods (6), several scrapes (7), driving part, air inlet (8) and air outlet (9), the first air distribution chamber (2) and second air distribution chamber (3) are symmetrically arranged on the support member (1), two the cooling pipes (4) are symmetrically arranged on the top of the first air distribution chamber (2) and second air distribution chamber (3), the outer surface of the cooling pipe (4) is exposed to atmosphere, four the short pipe (5) is symmetrically arranged on the top of two the cooling pipe (4), four the rotating rod (6) is arranged on four the short pipe (5) respectively, the rotating rod (6) penetrates the cooling pipe (4), several the scrape (7) is alternately distributed on the rotating rod (6) in cooling pipe (4), for removing ash accumulated in the inner wall of cooling pipe (4), the driving part is arranged on the top of the rotating rod (6), for driving rotating rod (6) rotation, the air inlet (8) is arranged on the side of the first air distribution chamber (2), and the air outlet (9) is arranged on the side of the second air distribution chamber (3) away from the air inlet (8).

2. The online soot cleaning surface cooler of claim 1, wherein: The driving part includes fixed frame (10) and hand wheel (11), the fixed frame (10) is arranged on the top of the rotating rod (6), and the hand wheel (11) is arranged on the fixed frame (10).

3. The in-line sootable surface chiller of claim 2, wherein: The short pipe (5) is provided with internal thread, and the top of the rotating rod (6) is provided with external thread matched with the internal thread.

4. The online soot cleaning surface cooler of claim 1, wherein: The bottom of the first air distribution chamber (2) and the second air distribution chamber (3) is provided with ash hopper (12) with a certain inclination.

5. The in-line sootable surface chiller of claim 4 wherein: The ash hopper (12) is provided with refractory lining.

6. The online soot cleaning surface cooler of claim 1, wherein: The first air distribution chamber (2) and the second air distribution chamber (3) are provided with reinforcing rib (13) outside.

7. The online soot cleaning surface cooler of claim 1, wherein: The cooling pipe (4) is in hump shape, and the cooling pipe (4) is vertically arranged on the top of the first air distribution chamber (2) and the second air distribution chamber (3).

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