Anti-coking sealing structure for water cooling wall of garbage incinerator

Abstract

The utility model discloses an anti-coking sealing structure for a water cooling wall of a garbage incinerator, which relates to the technical field of sealing structures and comprises a main body, the main body is mainly divided into an upper connecting pipe and a lower connecting pipe, an inserting plate is fixedly arranged at the lower end of the upper connecting pipe, a cushion block is arranged on the outer side of the inserting plate, and a limiting plate is fixedly arranged at the lower end of the lower connecting pipe. Cushion blocks are also arranged on the periphery of the limiting plate. Compared with an existing common water-cooled wall sealing structure, when the upper connecting pipe and the lower connecting pipe are in butt joint, if the installation space is sufficient, the inserting plate is inserted after being aligned with the limiting plate, then two pieces of external welding flux are installed between the two connecting pipes and temporarily fixed through the cushion blocks, and therefore the anti-coking sealing structure for the water-cooled wall of the garbage incinerator is achieved. When the installation space is not sufficient, welding flux needs to be placed on the cushion block before butt joint, and the cushion block is temporarily fixed to one end of the connecting pipe in a spot welding mode, so that the installation efficiency can be improved, and coking can be avoided in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, in particular to a water-cooled wall anti-coking sealing structure for a garbage incinerator. Background Art

[0002] The water-cooled wall is the main heat-receiving part of the boiler. It consists of several rows of steel pipes distributed around the boiler furnace. It has flowing water or steam inside and receives heat from the flame of the boiler furnace from the outside. It mainly absorbs the radiation heat of the high-temperature combustion products in the furnace, and the working fluid moves upward in it and evaporates due to heat. It is the main form of evaporation heating surface of various modern boilers and is also a basic component in the boiler water circulation loop.

[0003] As the application number is 202223329509.X, the utility model relates to the technical field of water-cooled wall, specifically a boiler water-cooled wall lower part arrangement and sealing structure, which can reduce the occurrence of pipe burst, simplify the structure, and facilitate maintenance, and includes a water-cooled wall tube connected to the lower header, characterized in that the water-cooled wall tube is provided with an upper pull-through tube and a side pull-through tube, the upper pull-through tube end is bent and tilted to connect to the upper side wall of the lower header, and the side pull-through tube is connected to the middle of the side wall of the lower header; a sealing bent plate is welded on the outer side of the water-cooled wall tube at the upper pull-through tube and the side pull-through tube. However, the water-cooled wall sealing structure is not convenient for preventing coking when in use.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a water-cooled wall anti-coking sealing structure for a garbage incinerator is proposed. Utility Model Content

[0005] The utility model aims to provide a water-cooled wall anti-coking sealing structure for a garbage incinerator to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water-cooled wall anti-coking sealing structure for a waste incinerator, comprising a main body, which is mainly divided into two parts: an upper connecting pipe and a lower connecting pipe. A plug plate is fixedly provided at the lower end of the upper connecting pipe, and a pad is provided on the outer side of the plug plate. A limiting plate is fixedly provided at the lower end of the lower connecting pipe, and pads are also provided around the limiting plate. Solder is provided between the upper connecting pipe and the lower connecting pipe, and both the inner and outer sides of the main body are coated with paint.

[0007] Preferably, the pads are fixedly connected to the upper connecting pipe, and eight pads are evenly distributed around the center of the upper connecting pipe, and eight pads are also evenly distributed around the center of the lower connecting pipe, and the upper and lower groups of pads are staggered.

[0008] Preferably, the outer diameter of the limit plate is smaller than the inner diameter of the plug plate, and the plug plate is slidably connected to the limit plate, the inner diameter of the limit plate is the same as the inner diameters of the upper pipe and the lower pipe, and the inner wall of the limit plate is also coated with paint.

[0009] Preferably, the pad is configured in a convex shape, and the pad is made of the same material as the solder, and the solder is composed of two half-circular rings.

[0010] Preferably, the coating is a "high-temperature nano-functional ceramic coating material", and the coating is coated on both the inner and outer surfaces of the main body, and the surface of the solder needs to be coated again after use.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a main body, an upper pipe, a lower pipe, a limiting plate, an insert plate, a pad, solder and paint. When the upper pipe and the lower pipe are connected, if the installation space is sufficient, the insert plate is aligned with the limiting plate and inserted, and then the two external solders are installed between the two pipes and temporarily fixed by the pad. If the installation space is insufficient, it is necessary to put the solder on the pad before connecting, and temporarily fix it to one end of the pipe by spot welding, so that the installation efficiency can be improved. During welding, the internal paint has a good heat absorption efficiency, which can not only reduce the surface dilution rate and slow down thermal deformation during welding, but also avoid coking during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the utility model;

[0015] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the main body of the utility model.

[0017] In the figure: 1. main body; 101. upper connecting pipe; 102. lower connecting pipe; 2. limit plate; 3. plug-in plate; 4. spacer block; 5. solder; 6. coating. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-Figure 4 As shown, a water-cooled wall anti-coking sealing structure for a garbage incinerator comprises a main body 1 which is mainly divided into an upper pipe 101 and a lower pipe 102. A plug plate 3 is fixedly arranged at the lower end of the upper pipe 101, and a cushion block 4 is arranged on the outer side of the plug plate 3. A limiting plate 2 is fixedly arranged at the lower end of the lower pipe 102, and cushion blocks 4 are also arranged around the limiting plate 2. Solder 5 is arranged between the upper pipe 101 and the lower pipe 102. Both inner and outer sides of the main body 1 are coated with coating 6. The cushion block 4 is fixedly connected to the upper pipe 101, and eight cushion blocks 4 are evenly distributed around the center of the upper pipe 101, and eight cushion blocks 4 are also evenly distributed around the center of the lower pipe 102, and the upper and lower groups of cushion blocks 4 are staggered. The outer diameter of the limiting plate 2 is smaller than the inner diameter of the plug plate 3, and the plug plate 3 is slidably connected to the limiting plate 2. The inner diameter of the limiting plate 2 is the same as the inner diameters of the upper pipe 101 and the lower pipe 102, and the inner wall of the limiting plate 2 is also coated with coating 6. It is covered with coating 6, and the pad 4 is set in a convex shape, and the pad 4 is made of the same material as the solder 5. The solder 5 consists of two half-circular rings. The coating 6 is "high-temperature nano-functional ceramic coating material", and the coating 6 is coated on the inner and outer surfaces of the main body 1. The solder 5 needs to be coated with coating 6 again on its surface after use. When the upper pipe 101 and the lower pipe 102 are docked, if the installation space is sufficient, align the plug plate 3 with the limit plate 2 and insert it, and then the two external solders 5 are installed between the two pipes and temporarily fixed by the pad 4. If the installation space is insufficient, it is necessary to place the solder 5 on the pad 4 before docking, and temporarily fix it to one end of the pipe by spot welding, so as to improve the installation efficiency, and during welding, the internal coating 6 has a good heat absorption efficiency, which can not only reduce the surface dilution rate and slow down thermal deformation during welding, but also avoid coking during use.

[0020] Furthermore, the pad 4 is made of the same material as the solder 5 , and its main purpose is to fix the solder 5 between the pipes, and can also further improve the welding efficiency during welding.

[0021] Furthermore, the coating 6 has a relatively high radiation frequency of 0.92-0.95, which can improve the heat exchange efficiency of the substrate surface.

[0022] Furthermore, the surface of the coating 6 is smooth, which can effectively prevent the coke from adhering to the surface of the substrate.

[0023] Working principle: When using the anti-coking sealing structure of the water-cooled wall of the waste incinerator, first, when docking the upper pipe 101 and the lower pipe 102, if there is enough installation space, align the plug plate 3 with the limit plate 2 and insert it, then install the two external solders 5 between the two pipes and temporarily fix them by the pad 4. If the installation space is insufficient, it is necessary to place the solder 5 on the pad 4 before docking, and temporarily fix it to one end of the pipe by spot welding, so as to improve the installation efficiency, and during welding, the internal coating 6 has a good heat absorption efficiency, which can not only reduce the surface dilution rate and slow down thermal deformation during welding, but also avoid coking during use. This is the working principle of the anti-coking sealing structure of the water-cooled wall of the waste incinerator.

Claims

1. A waste incinerator water-cooled wall anti-coking sealing structure, comprising a main body (1), characterized in that: The main body (1) is mainly divided into two parts, an upper pipe (101) and a lower pipe (102); a plug plate (3) is fixedly arranged at the lower end of the upper pipe (101), and a cushion block (4) is arranged on the outer side of the plug plate (3); a limit plate (2) is fixedly arranged at the lower end of the lower pipe (102), and cushion blocks (4) are also arranged around the limit plate (2); solder (5) is arranged between the upper pipe (101) and the lower pipe (102); and coating (6) is coated on both the inner and outer sides of the main body (1).

2. The anti-coking sealing structure for water-cooled wall of a garbage incinerator according to claim 1, characterized in that: The pads (4) are fixedly connected to the upper pipe (101), and eight pads (4) are evenly distributed around the center of the upper pipe (101). Eight pads (4) are also evenly distributed around the center of the lower pipe (102), and the upper and lower groups of pads (4) are staggered.

3. The anti-coking sealing structure for water-cooled wall of a garbage incinerator according to claim 1, characterized in that: The outer diameter of the limit plate (2) is smaller than the inner diameter of the plug plate (3), and the plug plate (3) is slidably connected to the limit plate (2), the inner diameter of the limit plate (2) is the same as the inner diameters of the upper pipe (101) and the lower pipe (102), and the inner wall of the limit plate (2) is also coated with a coating (6).

4. The anti-coking sealing structure for water-cooled wall of a garbage incinerator according to claim 1, characterized in that: The pad (4) is configured in the shape of a convex point, and the pad (4) is made of the same material as the solder (5), and the solder (5) is composed of two half-circular rings.

5. The anti-coking sealing structure for water-cooled wall of a garbage incinerator according to claim 1, characterized in that: The coating (6) is a "high-temperature nano-functional ceramic coating material", and the coating (6) is coated on both the inner and outer surfaces of the main body (1). After use, the surface of the solder (5) needs to be coated with the coating (6) again.

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