Superheater tube row for boiler

Abstract

The utility model relates to the technical field of boilers, in particular to a superheater tube bundle for boilers, which comprises a pipeline, a tube bundle and a vibrating device, the pipeline is mounted on the surface of the tube bundle, the vibrating device is arranged on the surface of the tube bundle and comprises a cylinder, and the cylinder is arranged on one side of the tube bundle and positioned on one side of the pipeline. An extrusion block is fixedly connected to the driving end of the air cylinder and located on one side of the pipeline, the push block is arranged between the two pipe bundles and located on one side of the pipeline, and an abutting groove is formed in the surface of the push block and located on one side of the extrusion block. According to the utility model, the vibration device is arranged, so that smoke dust accumulated on the surface of the pipeline is effectively reduced, when the boiler is used, the vibration device is started, the surface of the pipeline is prevented from being corroded by the smoke dust, the practicability of the vibration device is improved, the auxiliary property of the vibration device is improved, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a superheater tube bank for boilers. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes the chemical energy in fuel and electric energy. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. The original meaning of "pot" refers to a water container heated over fire, and "furnace" refers to a place for burning fuel. A boiler includes two main parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's livelihood, or can be converted into mechanical energy through a steam power device, or further converted into electric energy through a generator. A boiler that provides hot water is called a hot water boiler, which is mainly used for life and has a small amount of application in industrial production. A boiler that generates steam is called a steam boiler, often simply referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises. With the development of society, a superheater tube bank is used when the temperature needs to be heated.

[0003] Existing equipment such as CN201721657500.8, a boiler superheater tube bank, belongs to the field of boiler auxiliary devices. A boiler superheater tube bank of the utility model includes a plurality of superheater tubes distributed in a U shape. The first inner tube and the second inner tube located at the innermost side of the tube bank are respectively in a square shape on the outer side of other U-shaped superheater tubes, and the first inner tube, the second inner tube and other U-shaped superheater tubes are fixed by pipe clamps. The purpose of the utility model is to overcome the deficiencies in the prior art that the structure of the superheater tube bank is prone to cause the oxide scale that is not easily carried by steam to fall off, and even prone to the phenomenon of over-temperature tube explosion, and to provide a boiler superheater tube bank, which increases the steam passage cross-sectional area of the tubes, prevents the oxide scale of the inner ring tubes of the superheater from being blocked, reduces the probability of tube explosion, and has a simple structure and is convenient for popularization and use.

[0004] When workers use a boiler, a large amount of waste gas will be generated during the operation of the boiler, and the particles carried in the waste gas will come into contact with the surface of the tube bank. A large amount of particles will adhere to the surface of the pipeline and form lumps. The lumped particles will corrode the surface of the pipeline and affect the normal use of the boiler, and further cause serious damage to the surface of the tube bank. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the serious damage problem that occurs on the surface of the tube bank in the prior art, and to propose a superheater tube bank for boilers.

[0006] To achieve the above object, the utility model adopts the following technical solution: A superheater tube bank for a boiler, comprising a pipe, a tube bundle and a vibration device. The pipe is installed on the surface of the tube bundle, and the vibration device is arranged on the surface of the tube bundle. The vibration device includes a cylinder, the cylinder is arranged on one side of the tube bundle and is located on one side of the pipe. A pressing block is fixedly connected to the driving end of the cylinder, and the pressing block is located on one side of the pipe. A pushing block is arranged between the two tube bundles and is located on one side of the pipe. A resisting groove is formed on the surface of the pushing block, and the resisting groove is located on one side of the pressing block. A support plate is fixedly connected between the two tube bundles, and the cylinder is fixedly connected to the surface of the support plate. The pushing block is placed on the surface of the support plate, and the support plate can cooperate with the tube bundle to achieve the purpose of supporting the support plate.

[0007] Preferably, a limiting strip is fixedly connected to the surface of the support plate, and the pressing block is slidably connected to the surface of the limiting strip. The limiting strip can cooperate with the support plate to achieve the purpose of supporting the limiting strip.

[0008] Preferably, a guiding device is arranged on the surface of the support plate. The guiding device includes a guiding frame, the guiding frame is fixedly connected to the surface of the support plate and is located on one side of the pipe. The pushing block is slidably connected to the surface of the guiding frame. The guiding frame can cooperate with the support plate to achieve the purpose of supporting the guiding frame.

[0009] Preferably, a guiding rod is fixedly connected to the surface of the pushing block, and the guiding rod is slidably connected to the surface of the guiding frame. The guiding rod can cooperate with the pushing block to achieve the purpose of guiding the pushing block.

[0010] Preferably, a limiting disc is fixedly connected to the top end of the guiding rod, and the limiting disc is located on one side of the guiding frame. The limiting disc can cooperate with the guiding rod to achieve the purpose of limiting the guiding rod.

[0011] Preferably, a pushing spring is fixedly connected between the guiding frame and the pushing block, and the pushing spring is wound around the surface of the guiding rod. The pushing spring can cooperate with the guiding frame and the pushing block to achieve the purpose of assisting the pushing block to impact the pipe.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0013] In the present utility model, by setting a vibration device, when the boiler is in use, the accumulation of soot on the surface of the pipeline is reduced. For the equipment, the heat is adjusted to achieve the purpose of superheating. The cylinder is started, and the cylinder pushes the extrusion block. The extrusion block slides and is guided by the limiting strip. The extrusion block slides and inserts into the abutting groove. The extrusion block pushes the push block, and the push block rises. When the extrusion block disengages from the abutting groove, the extrusion block loses its restraint on the push block, and the extrusion block impacts the pipeline, causing the dust agglomerates on the surface of the pipeline to fall off. By setting the vibration device, the accumulation of soot on the surface of the pipeline is effectively reduced. When the boiler is in use, the vibration device is started, which avoids the corrosion of the pipeline surface by soot, improves the practicability of the vibration device, improves the auxiliary performance of the vibration device, and extends the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a three-dimensional structural schematic diagram of a superheater tube bank for a boiler proposed by the present utility model;

[0015] Figure 2 FIG. is a structural schematic diagram of a vibration device of a superheater tube bank for a boiler proposed by the present utility model;

[0016] Figure 3 FIG. is a superheater tube bank for a boiler proposed by the present utility model Figure 2 structural schematic diagram at position A;

[0017] Figure 4 FIG. is a structural schematic diagram of a guiding device of a superheater tube bank for a boiler proposed by the present utility model;

[0018] Figure 5 FIG. is a superheater tube bank for a boiler proposed by the present utility model Figure 4 structural schematic diagram at position B.

[0019] LEGEND DESCRIPTION:

[0020] 1. Pipeline; 2. Tube bundle; 3. Vibration device; 31. Cylinder; 32. Support plate; 33. Limiting strip; 34. Extrusion block; 35. Push block; 36. Abutting groove; 4. Guiding device; 41. Limiting disc; 42. Guiding rod; 43. Push spring; 44. Guiding frame. DETAILED IMPLEMENTATION MANNER

[0021] Please refer to Figures 1-5 , the present utility model provides a technical solution: a superheater tube bank for a boiler, including a pipeline 1, a tube bundle 2, and a vibration device 3. The pipeline 1 is installed on the surface of the tube bundle 2, and the vibration device 3 is arranged on the surface of the tube bundle 2.

[0022] The following specifically describes the specific settings and functions of its vibration device 3 and guiding device 4.

[0023] In this embodiment: The vibration device 3 includes a cylinder 31. The cylinder 31 is arranged on one side of the tube bundle 2 and on one side of the pipeline 1. A pressing block 34 is fixedly connected to the driving end of the cylinder 31. The pressing block 34 is located on one side of the pipeline 1. A pushing block 35 is arranged between the two tube bundles 2. The pushing block 35 is located on one side of the pipeline 1. A resisting groove 36 is formed on the surface of the pushing block 35. The resisting groove 36 is located on one side of the pressing block 34.

[0024] Specifically, a support plate 32 is fixedly connected between the two tube bundles 2. The cylinder 31 is fixedly connected to the surface of the support plate 32. The pushing block 35 is placed on the surface of the support plate 32. The support plate 32 can cooperate with the tube bundle 2 to achieve the purpose of supporting the support plate 32.

[0025] Specifically, a limiting strip 33 is fixedly connected to the surface of the support plate 32. The pressing block 34 is slidably connected to the surface of the limiting strip 33.

[0026] In this embodiment: The limiting strip 33 can cooperate with the support plate 32 to achieve the purpose of supporting the limiting strip 33.

[0027] In this embodiment: A guiding device 4 is arranged on the surface of the support plate 32. The guiding device 4 includes a guiding frame 44. The guiding frame 44 is fixedly connected to the surface of the support plate 32. The guiding frame 44 is located on one side of the pipeline 1. The pushing block 35 is slidably connected to the surface of the guiding frame 44. The guiding frame 44 can cooperate with the support plate 32 to achieve the purpose of supporting the guiding frame 44.

[0028] Specifically, a guiding rod 42 is fixedly connected to the surface of the pushing block 35. The guiding rod 42 is slidably connected to the surface of the guiding frame 44.

[0029] In this embodiment: The guiding rod 42 can cooperate with the pushing block 35 to achieve the purpose of guiding the pushing block 35.

[0030] Specifically, a limiting disc 41 is fixedly connected to the top end of the guiding rod 42. The limiting disc 41 is located on one side of the guiding frame 44. The limiting disc 41 can cooperate with the guiding rod 42 to achieve the purpose of limiting the guiding rod 42.

[0031] Specifically, a pushing spring 43 is fixedly connected between the guiding frame 44 and the pushing block 35. The pushing spring 43 is wound around the surface of the guiding rod 42.

[0032] In this embodiment: The pushing spring 43 can cooperate with the guiding frame 44 and the pushing block 35 to achieve the purpose of assisting the pushing block 35 to impact the pipeline 1.

[0033] Working principle: By setting the vibration device 3, when the boiler is in use, the accumulation of soot on the surface of the pipeline 1 is reduced. The device adjusts the heat to achieve the purpose of superheating. The cylinder 31 is started, and the cylinder 31 pushes the extrusion block 34. The extrusion block 34 slides and is guided by the limit strip 33. The extrusion block 34 slides and inserts into the abutment groove 36. The extrusion block 34 pushes the push block 35, and the push block 35 rises. When the extrusion block 34 disengages from the abutment groove 36, the extrusion block 34 loses its restraint on the push block 35, and the extrusion block 34 impacts the pipeline 1, and the dust lumps on the surface of the pipeline 1 fall off. By setting the vibration device 3, the accumulation of soot on the surface of the pipeline 1 is effectively reduced. When the boiler is in use, the vibration device 3 is started, which avoids the corrosion of the surface of the pipeline 1 by soot, improves the practicability of the vibration device 3, improves the auxiliary performance of the vibration device 3, and improves the service life of the pipeline 1. In addition, by setting the guiding device 4, when the vibration device 3 is in use, the sliding of the push block 35 is guided. The device adjusts the heat to achieve the purpose of superheating. When the push block 35 slides, the push block 35 slides and is guided by the guiding frame 44. The push block 35 slides and drives the guiding rod 42, and the guiding rod 42 guides the push block 35, and the pushing spring 43 assists the push block 35 to impact the pipeline 1. By setting the guiding device 4, the sliding of the push block 35 is effectively guided. When the vibration device 3 is in use, the guiding device 4 guides the push block 35, which avoids the situation of the push block 35 rotating during use, improves the practicability of the guiding device 4, improves the auxiliary performance of the guiding device 4, and improves the stability when the vibration device 3 is in use.

Claims

1. A superheater tube bank for a boiler, comprising a tube (1), a tube bundle (2) and a vibration device (3), characterized in that: The pipeline (1) is mounted on the surface of the tube bundle (2); the vibration device (3) is arranged on the surface of the tube bundle (2); the vibration device (3) comprises a cylinder (31); the cylinder (31) is arranged on one side of the tube bundle (2); the cylinder (31) is located on one side of the pipeline (1); a driving end of the cylinder (31) is fixedly connected to an extrusion block (34); the extrusion block (34) is located on one side of the pipeline (1); a push block (35) is arranged between two tube bundles (2); the push block (35) is located on one side of the pipeline (1); a support groove (36) is provided on the surface of the push block (35); the support groove (36) is located on one side of the extrusion block (34).

2. The boiler superheater tube bank according to claim 1, characterized in that: A support plate (32) is fixedly connected between the two tube bundles (2), the cylinder (31) is fixedly connected to the surface of the support plate (32), and the push block (35) is placed on the surface of the support plate (32).

3. The boiler superheater tube bank according to claim 2, characterized in that: The surface of the support plate (32) is fixedly connected to the limit strip (33), and the extrusion block (34) is slidably connected to the surface of the limit strip (33).

4. The boiler superheater tube bank according to claim 3, characterized in that: A guide device (4) is provided on the surface of the support plate (32), the guide device (4) comprising a guide frame (44), the guide frame (44) being fixedly connected to the surface of the support plate (32), the guide frame (44) being located on one side of the pipeline (1), and the push block (35) being slidably connected to the surface of the guide frame (44).

5. The boiler superheater tube bank according to claim 1, characterized in that: A guide rod (42) is fixedly connected to the surface of the push block (35), and the guide rod (42) is slidably connected to the surface of the guide frame (44).

6. The boiler superheater tube bank according to claim 5, characterized in that: The top end of the guide rod (42) is fixedly connected to a limiting plate (41), and the limiting plate (41) is located on one side of the guide frame (44).

7. The boiler superheater tube bank according to claim 6, characterized in that: A push spring (43) is fixedly connected between the guide frame (44) and the push block (35), and the push spring (43) is wound around the surface of the guide rod (42).

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