Tube row fixing device

Abstract

The utility model discloses a tube bundle fixing device, and particularly relates to the technical field of tube bundle fixing, the tube bundle fixing device comprises a plurality of groups of fixing components for fixing a tube bundle, the plurality of groups of fixing components are arranged at intervals, each group of fixing components comprises a plurality of transverse round steels which are distributed in an upper row and a lower row, and a plurality of longitudinal round steels are fixedly arranged at the tops of the plurality of transverse round steels; twenty mounting spaces are formed between the longitudinal round steel bars and the transverse round steel bars, and each pipe row is arranged in the corresponding mounting space. The net-shaped fixing assembly is formed by the transverse round steel bars and the longitudinal round steel bars, the pipe rows are fixed, a large amount of blowing damage of the pipe rows in a steam soot blower channel is avoided, the pipe replacement workload caused by excessive blowing damage of the pipe rows is reduced, meanwhile, due to the design of the upper-layer transverse round steel bars and the lower-layer longitudinal round steel bars, the stability of the pipe rows is improved, and the service life of the pipe rows is prolonged. And the risk of fatigue cracks caused by shaking during operation of the tube bundle is reduced, and favorable conditions are created for improving the maintenance efficiency of a unit and the reliability of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe row fixing, in particular to a pipe row fixing device. Background Art

[0002] The boiler water-cooled wall row tube is an important part of the boiler heating surface. It absorbs heat from the flue gas side mainly by convection heat exchange to increase the temperature of the medium in the tube. It enters the row tube outlet header on the ceiling tube from the bottom to the top from the slope of the flame deflection angle. There are 95 rows of water-cooled wall row tubes from left to right, and 4 tubes are arranged from front to back in each row. In order to prevent the row tubes from shaking continuously with the flow of flue gas during the operation of the unit, causing fatigue cracks at the upper and lower joints of the row tubes, the original design method designed a steel mesh in the middle part of the row of water-cooled wall row tubes for fixation.

[0003] During the anti-wear and explosion-proof inspections in previous years, it was found that the water-cooled wall row pipe fixing device position was seriously damaged. Although anti-wear tiles were installed on the surface of the pipe, it was difficult to fully seal the steel bars and fixing blocks in the tube screen fixing device area, and the anti-wear tiles of the water-cooled wall row pipes under the steel bars were easy to slide down, resulting in protection failure, which easily caused the soot blower to be damaged and thinned. Each time the damage exceeded the standard, a large number of pipe replacement and maintenance work had to be carried out. In addition, the anti-wear and explosion-proof inspection of the water-cooled wall row pipe fixing device was difficult, and it was easy for hidden defects to be not found in time, resulting in thinning of the pipes exceeding the standard and leakage, causing non-stop shutdown. In addition, during the annual maintenance and anti-wear and explosion-proof inspections, it was found that the repair work of these damaged or slipped anti-wear tiles was easy to cause secondary defects, posing a great threat to the safe and stable operation of the unit. Based on this, the utility model provides a pipe row fixing device that can reduce pipe row damage and pipe replacement workload and has high stability. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a tube row fixing device, which fixes multiple tube rows by forming a mesh fixing assembly through multiple horizontal round steels and multiple vertical round steels, thereby avoiding a large amount of blowing damage to the tube rows in the steam soot blower channel and reducing the workload of replacing tubes due to excessive blowing damage to the tube rows. At the same time, the design of the upper and lower double layers of horizontal round steels and vertical round steels improves the stability of the tube rows and reduces the risk of fatigue cracks caused by shaking of the tube rows during operation, thereby creating favorable conditions for improving the maintenance efficiency of the unit and the reliability of the equipment, so as to solve the problems arising from the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipe row fixing device, comprising a plurality of fixing components for fixing the pipe row, the plurality of fixing components are arranged at intervals, each fixing component comprises a plurality of horizontal round steels distributed in two rows, a plurality of vertical round steels are fixed on the top of the plurality of horizontal round steels, twenty installation spaces are formed between the plurality of vertical round steels and the plurality of horizontal round steels, each pipe row is respectively arranged inside each installation space, the outer walls of the plurality of horizontal round steels and the plurality of vertical round steels are in contact with the outer wall of the pipe row, so as to reduce the amount of wear between the pipe row and the horizontal round steels and the vertical round steels, a fixing block is fixed at the bottom end of each horizontal round steel, the plurality of fixing blocks are respectively fixed and welded to the outer walls of the plurality of pipe rows, so as to prevent the horizontal round steels and the vertical round steels from sliding down, a plurality of anti-wear tiles are arranged between the two vertically symmetrical horizontal round steels on the outermost sides of the front and rear of the fixing component, so as to play a protective role on the outside of the fixing component.

[0006] In a preferred embodiment, the twenty installation spaces are divided into five rows, and the five rows of installation spaces are distributed sequentially from left to right, with four installation spaces in each row, and the four installation spaces in each row are distributed sequentially from front to back.

[0007] In a preferred embodiment, the two outermost horizontal round steels of the fixing assembly are provided with multiple grooves on one side thereof, and multiple anti-wear tiles are respectively arranged in the multiple grooves to provide protection on the outside of the tube row.

[0008] In a preferred embodiment, each anti-wear tile has two slots on the top and bottom, and two spring pins are fixedly passed through the inner walls of the multiple grooves. The multiple spring pins are respectively inserted into the multiple slots, making it easy for staff to disassemble and assemble the anti-wear tiles.

[0009] In a preferred embodiment, a connecting rod is fixedly provided at the top of two spring pins in a groove, and the connecting rod is arranged on the outside of the horizontal round steel. The staff can drive the two spring pins to move simultaneously by pulling the connecting rod, which is more convenient to use.

[0010] In a preferred embodiment, each transverse round steel, each longitudinal round steel, each tube row and each fixing block are made of 15CrMo.

[0011] In a preferred embodiment, the diameter of each transverse round steel is 12 mm, the diameter of each longitudinal round steel is 10 mm, and the diameter of each fixing block is 10 mm.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model uses a plurality of horizontal round steels and a plurality of vertical round steels to form a mesh fixing assembly to fix a plurality of tube rows, thereby avoiding a large amount of blowing damage to the tube rows in the steam soot blower channel and reducing the workload of replacing tubes due to excessive blowing damage to the tube rows. At the same time, the design of the upper and lower double layers of horizontal round steels and vertical round steels improves the stability of the tube rows and reduces the risk of fatigue cracks caused by shaking of the tube rows during operation, thus creating favorable conditions for improving the maintenance efficiency of the unit and the reliability of the equipment.

[0014] 2. The anti-wear tile is fixed between two horizontal round steels that are symmetrical in the upper and lower parts by plugging multiple spring pins into multiple slots. When disassembling, the staff only needs to grab the connecting rod to drive the pins in the two spring pins to move out of the slots to take out the anti-wear tile and replace it. The structure is simple and it is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is the overall structural front view of the utility model;

[0017] Figure 3 It is a top view of the overall structure of the utility model;

[0018] Figure 4 This is a top view of the anti-wear tile of the utility model;

[0019] Figure 5 It is a schematic diagram of the spring latch and the connecting rod of the utility model.

[0020] The reference numerals are: 1, tube row; 2, fixing assembly; 3, groove; 4, slot; 5, spring latch; 6, connecting rod;

[0021] 201. Horizontal round steel; 202. Longitudinal round steel; 203. Installation space; 204. Fixing block; 205. Anti-wear tile. DETAILED DESCRIPTION

[0022] 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.

[0023] Refer to the instruction manual Figure 1-5The utility model provides a pipe row fixing device, comprising a plurality of fixing components 2 for fixing a pipe row 1, wherein the plurality of fixing components 2 are arranged at intervals, and each fixing component 2 comprises a plurality of horizontal round steels 201 distributed in two rows, wherein a plurality of vertical round steels 202 are fixedly arranged on the top of the plurality of horizontal round steels 201, and twenty installation spaces 203 are formed between the plurality of vertical round steels 202 and the plurality of horizontal round steels 201, and the twenty installation spaces 203 are divided into five rows, and the five rows of installation spaces 203 are distributed sequentially from left to right, and the number of installation spaces 203 in each row is four, and the four installation spaces 203 in each row are distributed sequentially from front to back;

[0024] Each tube row 1 is respectively arranged inside each installation space 203, and the outer walls of multiple horizontal round steels 201 and multiple vertical round steels 202 are in contact with the outer wall of the tube row 1, which is used to reduce the wear between the tube row 1 and the horizontal round steels 201 and the vertical round steels 202. A fixing block 204 is fixed at the bottom of each horizontal round steel 201, and multiple fixing blocks 204 are respectively fixedly welded to the outer walls of multiple tube rows 1 to prevent the horizontal round steels 201 and the vertical round steels 202 from sliding down. Multiple anti-wear tiles 205 are provided between the two horizontal round steels 201 symmetrically arranged on the outermost sides of the front and rear sides of the fixing component 2, which are used to protect the outer side of the fixing component 2;

[0025] Each transverse round steel 201, each longitudinal round steel 202, each pipe row 1 and each fixing block 204 are made of 15CrMo. 15CrMo has thermal strength at high temperatures, so it can improve the service strength of the transverse round steel 201, the longitudinal round steel 202, the pipe row 1 and the fixing block 204. The diameter of each transverse round steel 201 is 12 mm, the diameter of each longitudinal round steel 202 is 10 mm, and the diameter of each fixing block 204 is 10 mm, which is convenient for improving the strength of the fixing component 2, thereby improving the fixing stability of the pipe row 1.

[0026] A mesh-shaped fixing component 2 is formed by using multiple horizontal round steels 201 and multiple vertical round steels 202. Twenty installation spaces 203 are formed between the multiple horizontal round steels 201 and the multiple vertical round steels 202. The twenty installation spaces 203 are divided into five rows. The five rows of installation spaces 203 are distributed from left to right, with four installation spaces in each row. The four installation spaces 203 are distributed from front to back, and multiple groups of fixing components 2 are distributed at intervals. This can reduce thermal deformation of the tube row 1 due to thermal expansion and contraction when the unit is started or stopped or the load changes. A tube row 1 is provided in each installation space 203, and a fixing block 204 is welded on each horizontal round steel 201. The fixing block 204 is welded to the outer wall of the tube row 1 to prevent the entire fixing component 2 from sliding down on the surface of the tube row 1.

[0027] In actual use, two rows of horizontal round steels 201 and vertical round steels 202 are placed away from the steam soot blower, and then the anti-wear tiles 205 are added between the two outermost horizontal round steels 201 to form a protective method.

[0028] Refer to the instruction manual Figure 1-5 The two outermost horizontal round steel bars 201 of the fixing assembly 2 are provided with a plurality of grooves 3 on the side close to each other, and a plurality of anti-wear tiles 205 are respectively arranged in the plurality of grooves 3, which are used to play a protective role on the outside of the tube row 1. Two slots 4 are provided on the top and bottom of each anti-wear tile 205, and two spring latches 5 are fixedly penetrated through the inner walls of the plurality of grooves 3, and the plurality of spring latches 5 are respectively inserted into the plurality of slots 4, so that the staff can disassemble and install the anti-wear tiles 205 conveniently;

[0029] In order to facilitate the staff to adjust the spring latch 5, a connecting rod 6 is fixedly provided on the top of the two spring latches 5 in a groove 3. The connecting rod 6 is arranged on the outside of the horizontal round steel 201. The staff can pull the connecting rod 6 to drive the two spring latches 5 to move simultaneously, which is more convenient to use.

[0030] The anti-wear tile 205 is fixed between two horizontal round steels 201 which are symmetrical in the upper and lower parts by plugging multiple spring pins 5 into multiple slots 4. When disassembling, the staff only needs to grasp the connecting rod 6 to drive the pins in the two spring pins 5 to move out of the slots 4 to take out the anti-wear tile 205 and replace it. The structure is simple and it is very convenient to use.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A tube row fixing device, characterized in that: It comprises a plurality of fixing components (2) for fixing the pipe row (1), the plurality of fixing components (2) are arranged at intervals, each fixing component (2) comprises a plurality of horizontal round steels (201) distributed in two rows, a plurality of vertical round steels (202) are fixed on the top of the plurality of horizontal round steels (201), twenty installation spaces (203) are formed between the plurality of vertical round steels (202) and the plurality of horizontal round steels (201), and each pipe row (1) is arranged in each installation space (203); The outer walls of the plurality of transverse round steels (201) and the plurality of longitudinal round steels (202) are in contact with the outer wall of the tube row (1); a fixing block (204) is fixedly provided at the bottom end of each transverse round steel (201); the plurality of fixing blocks (204) are respectively fixedly welded to the outer walls of the plurality of tube rows (1) to prevent the transverse round steels (201) and the longitudinal round steels (202) from sliding down; A plurality of anti-wear tiles (205) are provided between the two vertically symmetrical horizontal round steels (201) at the outermost sides of the fixing component (2) to provide protection for the outer side of the fixing component (2).

2. A tube row fixing device according to claim 1, characterized in that: The twenty installation spaces (203) are divided into five rows, and the five rows of installation spaces (203) are distributed sequentially from left to right, with four installation spaces in each row, and the four installation spaces (203) in each row are distributed sequentially from front to back.

3. A tube row fixing device according to claim 1, characterized in that: The two outermost horizontal round steel bars (201) of the fixing assembly (2) are provided with a plurality of grooves (3) on one side thereof, and a plurality of anti-wear tiles (205) are respectively arranged in the plurality of grooves (3).

4. A tube row fixing device according to claim 3, characterized in that: Each anti-wear tile (205) has two slots (4) at the top and bottom, and two spring latches (5) are fixedly penetrated through the inner walls of the plurality of grooves (3). The plurality of spring latches (5) are respectively inserted into the plurality of slots (4), so as to facilitate the disassembly and assembly of the anti-wear tile (205).

5. A tube row fixing device according to claim 4, characterized in that: A connecting rod (6) is fixedly provided at the top end of two spring latches (5) in a groove (3), and the connecting rod (6) is arranged on the outside of the horizontal round steel (201) to facilitate the pulling out of the spring latches (5).

6. A tube row fixing device according to claim 1, characterized in that: Each transverse round steel (201), each longitudinal round steel (202), each tube row (1) and each fixing block (204) are made of 15CrMo.

7. The tube row fixing device according to claim 1, characterized in that: The diameter of each horizontal round steel (201) is 12 mm, the diameter of each vertical round steel (202) is 10 mm, and the diameter of each fixing block (204) is 10 mm.

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