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

Abstract

The utility model discloses an anti-corrosion 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 outer inserting plate is fixedly arranged at the lower end of the upper connecting pipe, and an inner inserting plate is fixedly arranged at the upper end of the lower connecting pipe. A clamping groove is formed in the lower end of the upper connecting pipe and located in the periphery of the outer inserting plate, and a clamping groove is also formed in the lower end of the outer inserting plate. Compared with an existing common water-cooled wall sealing structure, during connection, the outer inserting plate and the inner inserting plate are aligned and then inserted, the lower end of the outer inserting plate and the inner inserting plate are welded together, then the outer protection plate is pushed in, the limiting block is inserted into the clamping groove, in this way, the main body can be further protected, and the service life of the main body is prolonged. After the two outer protective plates are installed, the outer protective plates are welded to the connecting pipe, the surfaces of the outer protective plates are coated with paint after welding is completed, and therefore the corrosion speed of the connecting position of the main body can be reduced through the multiple layers of paint.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, in particular to an anti-corrosion sealing structure for a water-cooled wall of 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 field of water-cooled wall technology, specifically a boiler water-cooled wall lower arrangement and sealing structure, which can reduce the occurrence of pipe bursts, simplify the structure, and facilitate maintenance. It includes a water-cooled wall tube connected to the lower header, and is 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 obliquely connected 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 outside of the water-cooled wall tube at the upper pull-through tube and the side pull-through tube. However, this water-cooled wall sealing structure is not convenient for preventing the substrate from being corroded.

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

[0005] The utility model aims to provide a water-cooled wall corrosion-resistant 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: an anti-corrosion sealing structure of a water-cooled wall of a waste incinerator, comprising a main body, which is mainly divided into two parts: an upper pipe and a lower pipe. An outer plug-in plate is fixedly provided at the lower end of the upper pipe, and an inner plug-in plate is fixedly provided at the upper end of the lower pipe. A card slot is provided at the lower end of the upper pipe, and the card slot is located at the periphery of the outer plug-in plate. A card slot is also provided at the lower end of the outer plug-in plate, and the card slot is also located at the periphery of the inner plug-in plate.

[0007] Preferably, an outer guard plate is provided on the outer side of the outer plug plate, and limit blocks are slidably provided at the upper and lower ends of the outer guard plate, the inner and outer surfaces of the upper connecting pipe and the lower connecting pipe are coated with paint, and the inner and outer surfaces of the outer plug plate and the inner plug plate are also coated with paint, and the paint is coated on the inner side and the upper and lower sides of the outer guard plate, and is only coated on the outer side surface after the outer guard plate is installed.

[0008] Preferably, the outer plug plate is slidably connected to the inner plug plate, and the inner diameter of the outer plug plate and the outer diameter of the inner plug plate gradually increase from top to bottom until the outer diameter is located at half of the pipe wall of the pipe, and the inner diameter of the outer plug plate is consistent with the pipe.

[0009] Preferably, the outer guard plate is slidably connected to the upper pipe and the lower pipe at the same time, and the limit blocks are symmetrically arranged in two upper and lower groups along the center line of the outer guard plate, with three in each group, and the lower ends of the limit blocks are connected to the outer guard plate through spring plates, and the limit blocks are slidably connected to the slots at the same time.

[0010] Preferably, the outer sides of the ends opposite to the upper connecting pipe and the lower connecting pipe are both provided with bevels, and the coating is a "high-temperature nano-functional ceramic coating material".

[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, an outer plug-in plate, an inner plug-in plate, a slot, an outer guard plate, a limit block and a coating. When connecting the pipe, the outer plug-in plate is aligned with the inner plug-in plate and then inserted. After confirming that they are in place, the lower end of the outer plug-in plate is welded together with the inner plug-in plate, and then the outer guard plate is pushed in to insert the limit block into the slot, so that further protection can be provided for the main body. After the two outer guard plates are fully installed, they are welded to the pipe, and after the welding is completed, the coating is coated on the surface, so that the corrosion speed of the main body connection can be slowed down by the multi-layer coating. 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 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the outer guard plate of the utility model;

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

[0017] In the figure: 1. main body; 101. upper connecting pipe; 102. lower connecting pipe; 2. outer plug-in board; 3. inner plug-in board; 4. slot; 5. outer protective plate; 6. limit block; 7. paint. 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-corrosion sealing structure of a garbage incinerator includes a main body 1 which is mainly divided into two parts, an upper pipe 101 and a lower pipe 102. An outer plug-in plate 2 is fixedly arranged at the lower end of the upper pipe 101, and an inner plug-in plate 3 is fixedly arranged at the upper end of the lower pipe 102. A card slot 4 is opened at the lower end of the upper pipe 101, and the card slot 4 is located at the periphery of the outer plug-in plate 2. A card slot 4 is also opened at the lower end of the outer plug-in plate 2, and the card slot 4 is also located at the periphery of the inner plug-in plate 3. The outer side of the outer plug-in plate 2 is provided with The outer guard plate 5 is provided with a limit block 6 at both upper and lower ends of the outer guard plate 5, and the inner and outer surfaces of the upper pipe 101 and the lower pipe 102 are coated with a coating 7, and the inner and outer surfaces of the outer plug plate 2 and the inner plug plate 3 are also coated with a coating 7. The coating 7 is coated on the inner side and the upper and lower sides of the outer guard plate 5, and is only coated on the outer side after the outer guard plate 5 is installed. The outer plug plate 2 is slidably connected with the inner plug plate 3, and the inner diameter of the outer plug plate 2 and the outer diameter of the inner plug plate 3 gradually increase from top to bottom until the outer The diameter is located at one-half of the pipe wall of the pipe, the inner diameter of the outer plug-in plate 2 is consistent with the pipe, the outer guard plate 5 is slidably connected to the upper pipe 101 and the lower pipe 102 at the same time, the limit block 6 is symmetrically arranged in two groups along the center line of the outer guard plate 5, each group of three, and the lower end of the limit block 6 is connected to the outer guard plate 5 through a spring piece, and the limit block 6 is slidably connected to the card slot 4 at the same time, and the outer side of the upper pipe 101 and the lower pipe 102 The opposite end is provided with an oblique angle, coating 7, coating 7 is a "high-temperature nano-functional ceramic coating material". When connecting the pipe, align the outer plug-in plate 2 with the inner plug-in plate 3 and insert it. After confirming that it is in place, the lower end of the outer plug-in plate 2 is welded to the inner plug-in plate 3, and then the outer guard plate 5 is pushed in to make the limit block 6 inserted into the card slot 4, so that further protection can be provided for the main body 1. After all the two outer guard plates 5 are installed, they are welded to the pipe, and after welding, coating 7 is coated on its surface, so that the corrosion rate of the connection of the main body 1 can be slowed down by multi-layer coating 7.

[0020] Furthermore, the bevel angles of the upper pipe 101 and the lower pipe 102 can facilitate welding the outer guard plate 5 thereto.

[0021] Furthermore, the outer plug-in board 2 and the inner plug-in board 3 can be easily installed, and the inclined surfaces thereof can provide guidance for docking.

[0022] Furthermore, the outer guard plate 5 can further ensure the sealing performance through the coating 7 on its surface, and at the same time, it can also prevent the welding point from being corroded.

[0023] Furthermore, after spraying, the coating 7 can completely cover the surface of the substrate without pores, so that it can become an integral whole with the substrate, thereby further improving the corrosion resistance.

[0024] Furthermore, the coating 7 can also combine metals, ceramics, refractory materials, etc. together, thereby further improving the integrity and integrity of the main body 1 during use.

[0025] Working principle: When using the water-cooled wall anti-corrosion sealing structure of the garbage incinerator, first, when connecting the pipe, align the outer plug-in board 2 with the inner plug-in board 3 and insert them. After confirming that they are in place, weld the lower end of the outer plug-in board 2 and the inner plug-in board 3 together, and then push the outer guard plate 5 in, so that the limit block 6 is inserted into the slot 4, so that further protection can be provided for the main body 1. After the two outer guard plates 5 are fully installed, they are welded to the pipe, and after welding, the coating 7 is coated on its surface, so that the corrosion speed of the connection of the main body 1 can be slowed down by the multi-layer coating 7. This is the working principle of the water-cooled wall anti-corrosion sealing structure of the garbage incinerator.

Claims

1. A water-cooled wall anti-corrosion sealing structure for a waste incinerator, 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); an outer plug-in board (2) is fixedly arranged at the lower end of the upper pipe (101), and an inner plug-in board (3) is fixedly arranged at the upper end of the lower pipe (102); a card slot (4) is provided at the lower end of the upper pipe (101), and the card slot (4) is located at the periphery of the outer plug-in board (2); a card slot (4) is also provided at the lower end of the outer plug-in board (2), and the card slot (4) is also located at the periphery of the inner plug-in board (3).

2. The anti-corrosion sealing structure of the water-cooled wall of a waste incinerator according to claim 1 is characterized in that: An outer guard plate (5) is arranged on the outer side of the outer plug plate (2), and limit blocks (6) are slidably arranged at both upper and lower ends of the outer guard plate (5). The inner and outer surfaces of the upper pipe (101) and the lower pipe (102) are coated with a coating (7), and the inner and outer surfaces of the outer plug plate (2) and the inner plug plate (3) are also coated with a coating (7). The coating (7) is coated on the inner side and upper and lower sides of the outer guard plate (5), and is only coated on the outer side surface of the outer guard plate (5) after the outer guard plate (5) is installed.

3. The anti-corrosion sealing structure of the water-cooled wall of a waste incinerator according to claim 1 is characterized in that: The outer plug plate (2) is slidably connected to the inner plug plate (3), and the inner diameter of the outer plug plate (2) and the outer diameter of the inner plug plate (3) gradually increase from top to bottom until the outer diameter is located at half of the pipe wall of the pipe, and the inner diameter of the outer plug plate (2) is consistent with the pipe.

4. The anti-corrosion sealing structure of the water-cooled wall of a garbage incinerator according to claim 2 is characterized in that: The outer guard plate (5) is slidably connected to the upper pipe (101) and the lower pipe (102) at the same time. The limit blocks (6) are symmetrically arranged in two groups, three in each group, along the center line of the outer guard plate (5). The lower ends of the limit blocks (6) are connected to the outer guard plate (5) via spring sheets. The limit blocks (6) are slidably connected to the slots (4) at the same time.

5. The anti-corrosion sealing structure of the water-cooled wall of a garbage incinerator according to claim 2 is characterized in that: The outer sides of the ends of the upper pipe (101) and the lower pipe (102) opposite to each other are both provided with bevels, and the coating (7) is a "high-temperature nano-functional ceramic coating material".

Images