Rubbish incineration boiler heating surface small pipe anti-corrosion structure

Abstract

The utility model discloses a waste incineration boiler heating surface small pipe anti-corrosion structure which comprises a pipeline body, and an anti-corrosion structure is arranged on the outer side of the pipeline body. The anti-corrosion structure comprises a first protection plate and a second protection plate, the second protection plate is arranged on one side of the first protection plate, fixing bolts are arranged at the joint of the first protection plate and the second protection plate, protection layers are arranged in the first protection plate and the second protection plate, and guide pipes are arranged in the first protection plate and the second protection plate. A matched bulge is arranged at the joint of the guide tube; the drainage pipe is matched with the guiding pipe, refrigerating fluid or heat preservation fluid is introduced through the water inlet, the fluid reaches the interior through the drainage pipe, cooling or heat preservation treatment is conducted on the pipeline body, and then overtemperature of the pipe wall of the heating surface can be avoided; and when the temperature interval is reached, the water outlet valve is opened to discharge the refrigerating fluid or the heat preservation fluid in the water tank, and rapid replacement and cleaning of the fluid in the water tank are achieved.

Description

Technical Field

[0001] The utility model relates to an anti-corrosion structure for small tubes on the heating surface of a garbage incineration boiler, belonging to the technical field of incineration boilers. Background Art

[0002] The existing Chinese patent with publication number CN218781297U discloses an incinerator smoke elimination pipe, including a smoke elimination pipe main body, a smoke inlet pipe is provided on the front of the smoke elimination pipe main body, a smoke exhaust pipe is provided on the back of the smoke elimination pipe main body, and an activated carbon filter layer, a porous coconut shell carbon filter layer, a high-precision PP filter layer, an oxidized honeycomb porcelain and a sprayer are provided in sequence from left to right inside the smoke elimination pipe main body, a fixing mechanism is provided on the outside of the smoke elimination pipe main body, and water inlets are provided on the upper and lower sides of the smoke elimination pipe main body and at positions corresponding to the sprayer; the fixing mechanism includes an outer shell, a shell is provided on the top of the smoke elimination pipe main body, a sealing gasket is provided on the inner side of the shell and at a position corresponding to the smoke elimination pipe main body, and a lower fixing block is provided on the right side of the smoke elimination pipe main body. Compared with the existing incinerator smoke elimination pipe, the utility model improves the overall practicality of the incinerator smoke elimination pipe through design.

[0003] Although the above-mentioned device filters harmful substances in the flue gas and screens out a large amount of harmful substances in the flue gas, greatly reducing the corrosion hazard of harmful flue gas to the anti-inflammatory tube, the device lacks a temperature-controlled anti-corrosion structure. Because the molten salt produced by combustion usually has a low melting point, it can form a liquid at a lower temperature and intensify the corrosion reaction. In response to the above problem, an anti-corrosion structure for the small tube of the heating surface of a waste incineration boiler is provided. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an anti-corrosion structure for the small tubes on the heating surface of a waste incineration boiler to overcome the problem that the existing device lacks a temperature-controlled anti-corrosion structure during use, and the molten salt produced by combustion usually has a low melting point and can form a liquid at a lower temperature, exacerbating the corrosion reaction.

[0005] In order to achieve the above technical objectives and the above technical effects, the utility model provides a small tube anti-corrosion structure for the heating surface of a waste incineration boiler, comprising a pipe body, wherein the outer wall of the pipe body is provided with a corrosion-resistant structure;

[0006] The corrosion-resistant structure includes a protective sleeve, a guide pipe and a water tank. The protective sleeve is mounted on the outside of the pipeline body. There are multiple guide pipes and they are evenly spaced inside the protective sleeve along the axial direction of the pipeline body. The water tank is arranged on one side of the protective sleeve and is connected to the multiple guide pipes. A water inlet is provided on the top of the water tank, a water outlet valve is provided on the top of the water tank, and a liquid level observation window is provided on the side wall of the water tank.

[0007] Preferably, the protective cover plate includes a first protective plate and a second protective plate, the first protective plate and the second protective plate are both semi-arc-shaped, and the first protective plate and the second protective plate are detachably connected and the assembled shape completely wraps the pipe body.

[0008] Furthermore, the guide pipe includes a first tube body and a second tube body, the first tube body is arranged in the first protective plate, the second tube body is arranged in the second protective plate, the first tube body and the second tube body are connected when the first protective plate and the second protective plate are spliced and connected, and the second tube body is connected to the water tank through a drainage pipe.

[0009] Furthermore, the second protective plate is provided with engaging protrusions on the side walls on both sides of the second tube body in the axial direction, and the first protective plate is provided with a card slot that is engaged with the engaging protrusion.

[0010] Furthermore, a sealing rubber ring is provided on the outer wall of the fitting protrusion.

[0011] Furthermore, the first tube body and the second tube body are both semi-arc tube-shaped. When the first protection plate and the second protection plate are assembled, the first tube body and the second tube body form a cooling cavity outside the outer wall of the pipe body.

[0012] Furthermore, a protective layer is provided on the inner walls of the first protection plate and the second protection plate, and the cooling cavity is located between the first tube body, the second tube body and the protective layer.

[0013] Furthermore, a reinforcement sleeve is provided on the outer side of the drainage pipe, and two ends of the reinforcement sleeve are fixedly connected to the water tank and the second protective plate respectively.

[0014] Preferably, the liquid level observation window is a transparent material window and scale lines are provided on the outer wall of the window.

[0015] Preferably, a support rod is provided on the side of the protective cover plate facing away from the water tank, and a mounting plate is provided on the side of the support rod facing away from the protective cover plate.

[0016] The utility model provides an anti-corrosion structure for small tubes on the heating surface of a garbage incineration boiler, which has the following advantages:

[0017] The utility model discloses a waste incineration boiler heating surface small tube anti-corrosion structure, through the drainage pipe and the guide pipe, utilizes the water inlet of the water tank to connect the refrigerant or thermal insulation liquid, so that the liquid reaches the interior of the protective sleeve through the drainage pipe and the guide pipe, thereby cooling or insulating the pipeline, thereby preventing the heating surface tube wall from overheating; when the temperature range is reached, the water outlet valve is opened to discharge the internal refrigerant or thermal insulation liquid, thereby realizing the rapid replacement and cleaning of the liquid inside the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a small tube anti-corrosion structure for the heating surface of a garbage incineration boiler according to the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the small tube anti-corrosion structure of the heating surface of a garbage incineration boiler in this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the small tube anti-corrosion structure of the heating surface of a garbage incineration boiler in this utility model. Figure 2 ;

[0021] In the picture:

[0022] 1-Pipeline body; 2-Corrosion-resistant structure; 21-Protective sleeve; 211-First protective plate; 212-Second protective plate; 22-Guide pipe; 221-First pipe body; 222-Second pipe body; 23-Water tank; 231-Water inlet; 232-Water outlet valve; 3-Liquid level observation window; 4-Drainage pipe; 5-Protective layer; 6-Matching protrusion; 7-Card groove; 8-Sealing rubber ring; 9-Reinforcement sleeve; 10-Support rod; 11-Mounting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this utility model, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts are within the scope of protection of this utility model.

[0024] Reference Figure 1-Figure 3 A corrosion-resistant structure for small tubes on the heating surface of a waste incineration boiler includes a pipe body 1, which is preferably a tank body made of a nickel, chromium, and molybdenum alloy. A corrosion-resistant structure 2 is installed on the outer wall of the pipe body 1 to keep the temperature of the pipe body 1 within a constant temperature or an appropriate temperature range, thereby reducing the liquefaction of the molten salt in the pipe body 1 and thus reducing the corrosion of the pipe body 1.

[0025] Reference Figure 1-Figure 3The corrosion-resistant structure 2 includes a protective sleeve 21, a guide pipe 22 and a water tank 23. The protective sleeve 21 is installed outside the pipeline body 1. A plurality of guide pipes 22 are installed and are evenly spaced along the axis of the pipeline body 1 in the protective sleeve 21. The water tank 23 is fixedly installed on one side of the protective sleeve 21 and is connected to the plurality of guide pipes 22. A water inlet 231 is provided on the top of the water tank 23, and a water outlet valve 232 is installed on the top of the water tank 23. A liquid level observation window 3 is installed on the side wall of the water tank 23. The liquid level observation window 3 is made of transparent material. The window has a quality and scale lines are provided on the outer wall of the window. When in use, when the temperature of the pipeline is too high or too low, the refrigerant or thermal insulation liquid is introduced into the water tank 23 through the water inlet 231 and then circulated into the guide pipe 22. The refrigerant or thermal insulation liquid realizes heat exchange with the outer wall of the pipeline body 1 through the guide pipe 22, thereby ensuring that the heating surface of the pipeline body 1 is always at an appropriate temperature; when the temperature range is reached, the water outlet valve 232 is opened to discharge the internal refrigerant or thermal insulation liquid, thereby realizing rapid replacement and cleaning of the liquid inside the water tank 23.

[0026] In a further embodiment, the protective cover plate 21 includes a first protective plate 211 and a second protective plate 212. The first protective plate 211 and the second protective plate 212 are both semi-arc-shaped. The first protective plate 211 and the second protective plate 212 are detachably connected by bolts and the assembled shape completely wraps the pipe body 1.

[0027] In a further embodiment, the guide pipe 22 includes a first tube body 221 and a second tube body 222, and the first tube body 221 and the second tube body 222 are both semi-arc tubes. The first tube body 221 is embedded in the inner wall of the first protective plate 211, and the second tube body 222 is embedded in the second protective plate 212. The first tube body 221 and the second tube body 222 are connected when the first protective plate 211 and the second protective plate 212 are spliced and connected, and a cooling cavity is formed outside the outer wall of the pipe body 1. The second tube body 222 is connected to the water tank 23 through the drainage pipe 4.

[0028] Furthermore, a protective layer 5 is provided on the inner wall of the first protective plate 211 and the second protective plate 212. The cooling cavity is located between the first tube body 221 and the second tube body 222 and the protective layer 5. The protective layer 5 is a rock wool shell and an aluminum silicate fiber shell. When the medium temperature of the pipeline main body 1 is greater than or equal to 350°C, an aluminum silicate fiber shell is used. When the medium temperature of the pipeline main body 1 is in the range of 50°C to 350°C, a rock wool shell is used. Selecting suitable insulation materials is of great significance for improving the thermal efficiency of the waste incineration boiler, reducing heat loss, and protecting equipment and personnel safety. When in use, the refrigerant or insulation liquid directly contacts the protective layer 5 through the guide pipe 22, and then the temperature of the refrigerant or insulation liquid is quickly and evenly transferred to the protective layer 5, and then heat exchange is carried out with the heating surface of the pipeline main body 1 through the protective layer 5, thereby avoiding direct contact between the guide pipe 22 and the heating surface of the pipeline main body 1.

[0029] Reference Figure 3 In a further embodiment, the second protective plate 212 is integrally formed with a fitting protrusion 6 on the side walls on both sides of the second tube body 222 in the axial direction, and a card slot 7 is opened on the first protective plate 211 to engage with the fitting protrusion 6. A sealing rubber ring 8 is installed on the outer wall of the fitting protrusion 6, thereby improving the airtightness of the guide tube 22 when the first protective plate 211 and the second protective plate 212 are spliced, reducing the possibility of leakage of refrigerant or insulation liquid resulting in poor insulation or cooling effect.

[0030] Reference Figure 1-Figure 3 In a further embodiment, a reinforcement sleeve 9 is provided on the outside of the drainage pipe 4, and the two ends of the reinforcement sleeve 9 are respectively welded and fixed to the water tank 23 and the second protective plate 212. A support rod 10 is integrally formed on the side of the first protective plate 211 facing away from the water tank 23, and a mounting plate 11 is integrally formed on the side of the support rod 10 facing away from the protective cover plate 21. The mounting plate 11 and the support rod 10 are used to maintain a fixed distance between the entire device and the furnace body to avoid shaking during use.

[0031] The working principle of the anti-corrosion structure of the small tube of the heating surface of the garbage incineration boiler in the utility model is as follows:

[0032] When selecting the material of the protective layer 5, it is selected according to the temperature of the required flowing medium. When the medium temperature of the pipeline body 1 is greater than or equal to 350°C, an aluminum silicate fiber shell is used. When the medium temperature of the pipeline body 1 is between 50°C and 350°C, a rock wool shell is used. When installing, the first protective plate 211 and the second protective plate 212 are wrapped around the outside of the pipeline body 1, so that the guide pipe 22 is sealed and docked through the fitting protrusion 6, and then the fixing bolts are tightened to install and fix the first protective plate 211 and the second protective plate 212, and then the protective plate 211 and the second protective plate 212 are fixed. Use the mounting plate 11 and the support rod 10 to maintain a fixed distance between the device and the furnace body to avoid shaking during use; when in use, when the pipe temperature is too high or too low, the refrigerant or insulation liquid is connected through the water inlet 231, so that the liquid passes through the drainage pipe 4 to the inside of the guide pipe 22, thereby cooling or insulating the pipe body 1, thereby avoiding overheating of the heated surface pipe wall; when the temperature range is reached, open the water outlet valve 232 to discharge the internal refrigerant or insulation liquid, so as to achieve rapid replacement and cleaning of the liquid inside the water tank 23.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form or substance. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be considered as the scope of protection of the present invention. Any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the spirit and scope of the present invention, which are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A small tube anti-corrosion structure for the heating surface of a waste incineration boiler, comprising a pipe body (1), characterized in that: A corrosion-resistant structure (2) is provided on the outer wall of the pipeline body (1); The corrosion-resistant structure (2) comprises a protective sleeve (21), a guide pipe (22) and a water tank (23); the protective sleeve (21) is sleeved on the outside of the pipeline body (1); a plurality of guide pipes (22) are provided and are evenly spaced and arranged in the protective sleeve (21) along the axial direction of the pipeline body (1); the water tank (23) is provided on one side of the protective sleeve (21) and is in communication with the plurality of guide pipes (22); a water inlet (231) is provided on the top of the water tank (23); a water outlet valve (232) is provided on the top of the water tank (23); and a liquid level observation window (3) is provided on the side wall of the water tank (23).

2. The anti-corrosion structure of the small tube of the heating surface of a waste incineration boiler according to claim 1, characterized in that: The protective cover plate (21) comprises a first protective plate (211) and a second protective plate (212); the first protective plate (211) and the second protective plate (212) are both semi-arc-shaped; the first protective plate (211) and the second protective plate (212) are detachably connected and their combined shape completely encloses the pipe body (1).

3. The anti-corrosion structure of small tubes on the heating surface of a waste incineration boiler according to claim 2, characterized in that: The guide pipe (22) comprises a first pipe body (221) and a second pipe body (222); the first pipe body (221) is arranged in the first protective plate (211); the second pipe body (222) is arranged in the second protective plate (212); the first pipe body (221) and the second pipe body (222) are connected when the first protective plate (211) and the second protective plate (212) are spliced and connected; the second pipe body (222) is connected to the water tank (23) via a drainage pipe (4).

4. The anti-corrosion structure for small tubes on the heating surface of a waste incineration boiler according to claim 3, characterized in that: The second protective plate (212) is provided with engaging protrusions (6) on the side walls on both sides of the second tube body (222) in the axial direction, and the first protective plate (211) is provided with a clamping groove (7) clamped with the engaging protrusion (6).

5. The anti-corrosion structure of small tubes on the heating surface of a waste incineration boiler according to claim 4, characterized in that: A sealing rubber ring (8) is provided on the outer wall of the fitting protrusion (6).

6. The anti-corrosion structure of small tubes on the heating surface of a waste incineration boiler according to claim 3, characterized in that: The first tube body (221) and the second tube body (222) are both semi-arc tube-shaped. When the first protection plate (211) and the second protection plate (212) are assembled, the first tube body (221) and the second tube body (222) form a cooling cavity outside the outer wall of the pipeline body (1).

7. The anti-corrosion structure of small tubes on the heating surface of a waste incineration boiler according to claim 6, characterized in that: A protective layer (5) is provided on the inner walls of the first protective plate (211) and the second protective plate (212), and the cooling cavity is located between the first tube body (221), the second tube body (222) and the protective layer (5).

8. The anti-corrosion structure for small tubes on the heating surface of a waste incineration boiler according to claim 3, characterized in that: A reinforcement sleeve (9) is provided on the outside of the drainage pipe (4), and two ends of the reinforcement sleeve (9) are fixedly connected to the water tank (23) and the second protection plate (212) respectively.

9. The anti-corrosion structure of small tubes on the heating surface of a waste incineration boiler according to claim 1, characterized in that: The liquid level observation window (3) is a transparent material window and scale lines are provided on the outer wall of the window.

10. The anti-corrosion structure for small tubes on the heating surface of a waste incineration boiler according to claim 1, characterized in that: A support rod (10) is provided on the side of the protective cover plate (21) facing away from the water tank (23), and a mounting plate (11) is provided on the side of the support rod (10) facing away from the protective cover plate (21).

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