Anti-abrasion optimizing device for high-plasticity equal-displacement economizer

Abstract

The utility model belongs to the technical field of mechanical disassembling and assembling tools, and particularly relates to a high-plasticity equal-displacement economizer anti-abrasion optimizing device which comprises a reinforcing structure, fixing structures are integrally formed on the left side and the right side of the reinforcing structure, and the reinforcing structure and the fixing structures are made of twelve-chromium-one-molybdenum-vanadium steel. The reinforcing structure comprises a first sleeve and a second sleeve; the fixing structure comprises two connecting retaining rings, and a plurality of comb tooth grooves distributed left and right at equal intervals are formed in the inner surfaces of the two connecting retaining rings. The reinforcing structure is arranged in the device and composed of the two sleeves, when the pipe wall of the economizer smoke exhaust pipe becomes thin due to impact of smoke particles, the reinforcing structure of the corresponding model can be selected to wrap the weak position of the pipe wall, and fixing is conducted through the fixing structures on the two sides of the reinforcing structure; the strength of the smoke exhaust pipeline of the economizer can be enhanced, and the abrasion resistance of the position of the smoke exhaust pipeline can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical disassembly and assembly tools, in particular to a high-plasticity equal-displacement economizer anti-wear optimization device. Background Art

[0002] An economizer is a device installed at the bottom of the flue at the tail end of the boiler to recover the waste heat of the exhaust gas. Because it absorbs the heat of the high-temperature flue gas, it reduces the exhaust temperature of the flue gas, saves energy and improves efficiency, so it is called an economizer.

[0003] Due to the varying quality of coal resources in my country, most thermal power plants use inferior coal or mixed coal types for combustion, which can lead to some problems:

[0004] After the low-quality pulverized coal is burned in the furnace, a large amount of flue gas is produced. The flue gas contains a large amount of fly ash particles and some incompletely burned pulverized coal particles. When the high-temperature flue gas passes through the heating surfaces in the boiler, the fly ash particles continuously hit the heating surfaces, causing the heating surfaces to become thinner and more severe, triggering pipe burst accidents, and seriously affecting the safe and stable operation of the boiler.

[0005] Therefore, to address the above problems, a high-plasticity equal-displacement economizer anti-wear optimization device is proposed. Utility Model Content

[0006] (1) Technical problems solved

[0007] In response to the shortcomings of the existing technology, the utility model provides a high-plasticity equal-displacement economizer anti-wear optimization device, which solves the problem that the particles generated by incomplete combustion of inferior coal can easily thin the smoke exhaust pipe and make it prone to rupture due to rapid impact.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention provides the following technical solutions: a high-plasticity equal-displacement economizer anti-wear optimization device, comprising a reinforcement structure, wherein the left and right sides of the reinforcement structure are integrally formed with a fixed structure, and the reinforcement structure and the fixed structure are both made of twelve-chromium-molybdenum-vanadium steel;

[0010] The reinforcement structure includes a first sleeve and a second sleeve;

[0011] The fixing structure includes two connecting buckles, and the inner surfaces of the two connecting buckles are each provided with a plurality of comb-tooth grooves distributed equidistantly on the left and right.

[0012] Preferably, the upper rear portion and the lower rear portion of the first sleeve are both provided with slots, and the upper front portion and the lower front portion of the second sleeve are both fixedly connected with convex edges, and the two convex edges are respectively engaged with the two slots.

[0013] Preferably, the upper and lower parts of the two connecting buckles are fixedly connected with a connecting assembly, and fixing bolts are inserted and fixedly connected inside the two connecting assemblies.

[0014] Preferably, the connecting assembly includes a first fixing block and a second fixing block, and a connecting hole is commonly formed on the front upper side of the first fixing block and the front upper side of the second fixing block.

[0015] Preferably, a groove is formed on the upper rear side of the first fixing block, and a protrusion is integrally formed on the upper front side of the second fixing block.

[0016] Preferably, the first fixing block and the second fixing block are fixedly connected to the upper part or the lower part of the two connecting buckles respectively, and the protrusion is engaged with the groove.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a high-plasticity equal-displacement economizer anti-wear optimization device, which has the following beneficial effects:

[0019] 1. This high-plasticity equal-displacement economizer anti-wear optimization device is equipped with a reinforcement structure, which is composed of two sleeves, and both sleeves are made of twelve-chromium-molybdenum-vanadium steel. Twelve-chromium-molybdenum-vanadium steel is a pearlite low-alloy heat-resistant steel. This steel still has high oxidation resistance and long-lasting plasticity at 580°C, which can ensure the strength and durability of the device. When the economizer exhaust pipe becomes thinner due to the impact of flue gas particles, a reinforcement structure of a corresponding model can be selected to wrap the weak position of the pipe wall, and fixed by the fixing structures on both sides of the reinforcement structure, which can enhance the strength of the economizer exhaust pipe and improve the wear resistance of the exhaust pipe at this position.

[0020] 2. This high-plasticity equal-displacement economizer anti-wear optimization device has multiple equidistantly distributed comb grooves on the inner surfaces of the two connecting buckles in the fixed structure. When the fixed structure is used to fix and install the reinforcement structure, the multiple comb grooves can enhance the connection stability between the fixed structure and the smoke exhaust duct, and prevent the device from sliding during subsequent use. At the same time, the two fixed blocks in the connecting components arranged at the upper and lower parts of the fixed structure are respectively provided with grooves and protrusions. When the two connecting buckles in the fixed structure are connected to each other, they can be fitted together through the grooves and protrusions in the fixing blocks of the connecting components, so that the connection between the two connecting buckles and the two rings in the reinforcement structure can maintain accurate docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the reinforcement structure of the utility model;

[0025] Figure 4 It is a three-dimensional structural diagram of the fixed structure of the utility model;

[0026] Figure 5 It is a three-dimensional structural diagram of the connection component of the utility model.

[0027] In the figure: 1. Reinforcement structure; 2. Fixing structure; 11. First sleeve; 12. Second sleeve; 13. Slot; 14. Flange; 21. Connecting buckle; 22. Comb groove; 23. Connecting assembly; 24. Fixing bolt; 231. First fixing block; 232. Second fixing block; 233. Connecting hole; 234. Groove; 235. Protrusion. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Specific examples are given below.

[0030] See also Figure 1-Figure 5 The utility model provides a technical solution: a high-plasticity equal-displacement economizer anti-wear optimization device, including a reinforcement structure 1, and a fixed structure 2 is integrally formed on the left and right sides of the reinforcement structure 1. The reinforcement structure 1 and the fixed structure 2 are both made of twelve-chromium-molybdenum-vanadium steel.

[0031] Further, such as Figure 1-Figure 3 As shown, the reinforcement structure 1 includes a first sleeve 11 and a second sleeve 12. The upper rear portion and the lower rear portion of the first sleeve 11 are both provided with slots 13. The upper front portion and the lower front portion of the second sleeve 12 are both fixedly connected with flanges 14. The two flanges 14 are respectively engaged with the two slots 13.

[0032] Through the above scheme: when the economizer exhaust duct is damaged, the reinforcement structure 1 made of twelve-chromium-molybdenum-vanadium steel can be used to wrap and fix the position with a reinforcement structure 1 of appropriate size. The twelve-chromium-molybdenum-vanadium steel is a pearlite low-alloy heat-resistant steel. The steel still has high oxidation resistance and long-lasting plasticity at 580°C, so that the reinforcement structure 1 can improve the strength of the damaged position of the exhaust duct and prevent the exhaust duct from rupturing.

[0033] Further, such as Figure 1-Figure 5 As shown, the fixing structure 2 includes two connecting buckles 21, and the inner surfaces of the two connecting buckles 21 are provided with a plurality of comb grooves 22 equidistantly distributed on the left and right sides. The upper and lower parts of the two connecting buckles 21 are fixedly connected with a connecting component 23, and the interiors of the two connecting components 23 are fixedly connected with fixing bolts 24. The connecting component 23 includes a first fixing block 231 and a second fixing block 232. The upper front side of the first fixing block 231 and the upper front side of the second fixing block 232 are jointly provided with a connecting hole 233, the upper rear side of the first fixing block 231 is provided with a groove 234, and the upper front side of the second fixing block 232 is integrally formed with a protrusion 235. The first fixing block 231 and the second fixing block 232 are respectively fixedly connected to the upper or lower parts of the two connecting buckles 21, and the protrusion 235 is engaged with the groove 234.

[0034] Through the above scheme: by providing multiple equidistantly distributed comb grooves 22 on the inner surfaces of the two connecting buckles 21 in the fixed structure 2, when the fixed structure 2 is used to fix and install the reinforcement structure 1, the multiple comb grooves 22 can enhance the connection stability between the fixed structure 2 and the smoke exhaust pipe, and prevent the device from sliding during subsequent use.

[0035] Working principle: First, determine the damaged position of the economizer exhaust duct, then select the appropriate model of this device, remove the fixing bolts 24 in the device, so that the reinforcement structure 1 and the two fixed structures 2 can be separated, and then wrap the reinforcement structure 1 around the damaged position of the exhaust duct, and align the fixing blocks in the connecting components 23 in the two fixed structures 2 with each other, and finally use the fixing bolts 24 to tighten the four connecting components 23 in the two fixed structures 2 to achieve the connection between this device and the damaged exhaust duct. The entire device is made of twelve-chromium-molybdenum-vanadium steel, which is a pearlite low-alloy heat-resistant steel. The steel still has high oxidation resistance and long-lasting plasticity at 580°C, which can ensure the strength and durability of this device.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A high plasticity equal displacement economizer anti-wear optimization device, comprising a reinforcement structure (1), characterized in that: The left and right sides of the reinforcement structure (1) are integrally formed with a fixed structure (2), and the reinforcement structure (1) and the fixed structure (2) are both made of twelve-chromium-molybdenum-vanadium steel; The reinforcement structure (1) comprises a first sleeve (11) and a second sleeve (12); The fixing structure (2) comprises two connecting buckles (21), and the inner surfaces of the two connecting buckles (21) are each provided with a plurality of comb-tooth grooves (22) distributed equidistantly on the left and right.

2. The high plasticity equal displacement economizer anti-wear optimization device according to claim 1, characterized in that: The first sleeve (11) is provided with a slot (13) at the upper rear portion and the lower rear portion, and the second sleeve (12) is fixedly connected with a convex edge (14) at the upper front portion and the lower front portion, and the two convex edges (14) are respectively engaged with the two slots (13).

3. The high plasticity equal displacement economizer anti-wear optimization device according to claim 1, characterized in that: The upper and lower parts of the two connecting buckles (21) are both fixedly connected to a connecting assembly (23), and fixing bolts (24) are inserted and fixedly connected inside the two connecting assemblies (23).

4. The high plasticity equal displacement economizer anti-wear optimization device according to claim 3 is characterized by: The connecting assembly (23) comprises a first fixing block (231) and a second fixing block (232), wherein a connecting hole (233) is provided on the upper front side of the first fixing block (231) and the upper front side of the second fixing block (232).

5. The high plasticity equal displacement economizer anti-wear optimization device according to claim 4 is characterized in that: A groove (234) is provided on the upper rear side of the first fixing block (231), and a protrusion (235) is integrally formed on the upper front side of the second fixing block (232).

6. The high plasticity equal displacement economizer anti-wear optimization device according to claim 5, characterized in that: The first fixing block (231) and the second fixing block (232) are fixedly connected to the upper part or the lower part of the two connecting buckles (21), respectively, and the protrusion (235) is engaged with the groove (234).

Images