Abrasion-proof device for boiler tube of rear smoke well of boiler

Abstract

The utility model relates to an anti-abrasion device for a boiler tube of a rear smoke well of a boiler, which is characterized in that a horizontal bent plate is mounted on a horizontal tube at the topmost position of a suspension tube, a fit circular groove is formed in the horizontal bent plate corresponding to the suspension tube, bent plates are fixedly connected to the bottom ends of two sides of the horizontal bent plate, and a porous flat plate is connected to one side of the horizontal bent plate; the porous flat plate is detachably connected with the horizontal bent plate through the fixing bolt, the horizontal bent plate and the bent plate are installed on the suspension pipe and the horizontal pipe so as to replace a traditional anti-abrasion angle steel structure, the porous flat plate can effectively reduce smoke resistance increased when an anti-abrasion device is installed, and compared with original anti-abrasion angle steel, the anti-abrasion device can be installed more conveniently. According to the boiler tail flue anti-abrasion device, the added weight of the boiler tail flue is greatly reduced, operation of a boiler is facilitated, meanwhile, the horizontal bent plate and the bent plate are connected through the fixing bolts, the whole anti-abrasion device is made to be of a smaller and exquisite structure, and the split type connecting structure is convenient to install and detach and beneficial to maintenance and detection of the boiler.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler suspension pipe technical field, concretely is boiler rear smoke well furnace pipe anti-abrasion device. BACKGROUND

[0002] Boiler suspension pipe refers to the hanger device installed on the boiler for supporting the weight of the boiler. This device ensures the stability of the boiler, avoids displacement or vibration caused by the weight of the boiler, and thus ensures the safety and stability of the boiler operation. The suspension pipe is usually made of high-temperature-resistant and corrosion-resistant materials and can withstand high-temperature and high-pressure environments. Since the suspension pipe near the low-pass and low-reheat horizontal pipe section of the boiler is not designed with an anti-abrasion device, the blowing of the soot-blowing steam to the suspension pipe causes abrasion of the suspension pipe. At the same time, the blowing of the soot-blowing steam to the suspension pipe causes turbulence, which blows and damages the horizontal pipes on both sides of the suspension pipe. The degree of damage will gradually increase as the operation time increases. The low-pass and low-reheat pipes are arranged relatively closely. Once the pipes are thinned due to blowing damage, leakage will occur, which will quickly cause the nearby pipes to blow and leak. It is difficult for the unit to continue operation and wait for the power grid to stop. Moreover, due to the close arrangement of the pipes, it is extremely difficult to replace the pipes at this location.

[0003] The existing anti-abrasion device is usually installed along the furnace width direction with anti-abrasion angle steel at the low-pass and low-reheat suspension pipe position. However, this anti-abrasion method is too simple and rough. Although it can solve the problem, it will increase the resistance of the boiler tail flue gas, and the low-pass and low-reheat materials will have different expansion problems due to the different materials of the anti-abrasion angle steel, which will cause the low-pass and low-reheat to bear more weight. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the shortcomings of the prior art, the utility model provides a boiler rear smoke well furnace pipe anti-abrasion device, which solves the problem that the existing anti-abrasion device is usually installed along the furnace width direction with anti-abrasion angle steel at the low-pass and low-reheat suspension pipe position. However, this anti-abrasion method is too simple and rough. Although it can solve the problem, it will increase the resistance of the boiler tail flue gas, and the low-pass and low-reheat materials will have different expansion problems due to the different materials of the anti-abrasion angle steel, which will cause the low-pass and low-reheat to bear more weight.

[0006] (II) Technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a boiler rear smoke well furnace pipe anti-abrasion device, comprising a suspension pipe and a horizontal pipe, a plurality of groups of horizontal pipes are arranged at equal distances along the horizontal direction on both sides of the suspension pipe, the plurality of groups of horizontal pipes are supported by a connecting seat, an installation pipe hole is formed in the inside of the connecting seat, the suspension pipe is embedded and installed in the installation pipe hole, pipe seats are fixedly connected to both side end portions of the connecting seat, and the horizontal pipe is arranged between adjacent two pipe seats.

[0008] The horizontal bent plate is provided with a matching circular groove at the inside corresponding to the suspension pipe, the suspension pipe is embedded into the matching circular groove, both sides of the bottom end of the horizontal bent plate are fixedly connected with bent plates, and one side of the horizontal bent plate is connected with a multi-hole flat plate.

[0009] The top of the horizontal bent plate is provided with support L plates at both sides of the suspension pipe, a butt joint groove is formed at the middle end of one side of the two support L plates, the suspension pipe is embedded and connected into the butt joint groove, the bottom end of the support L plate is detachably connected with the top of the horizontal bent plate through a mounting plate, and the edge end of one side of the two support L plates is provided with a limiting seat.

[0010] The edge end of the pipe base is provided with an edge part clamping seat, a containing groove is formed at the inside of the edge part clamping seat, a threaded rod is embedded and connected at the inside of the containing groove, and lock nuts are threadedly connected to the top end and the bottom end of the threaded rod.

[0011] As the preferred technical scheme of the boiler rear smoke shaft furnace pipe anti-abrasion device, oval mounting holes are formed at the inside of the horizontal bent plate and the multi-hole flat plate corresponding to the fixed bolts, the fixed bolts are arranged in the mounting holes, the two limiting seats at the edge ends of the two support L plates are connected and fixed through limiting bolts, the butt joint grooves at the edge parts of the two support L plates are spliced to form a limiting circular groove, and the suspension pipe is embedded and connected into the limiting circular groove.

[0012] As the preferred technical scheme of the boiler rear smoke shaft furnace pipe anti-abrasion device, the end face of the lock nut is in close contact with the edge part clamping seat, and the length of the threaded rod can be adjusted according to the superposition height of the connecting seats.

[0013] As the preferred technical scheme of the boiler rear smoke shaft furnace pipe anti-abrasion device, two embedded grooves are symmetrically formed in the vertical direction at the front edge part of the connecting seat, mounting boxes are fixedly installed at both sides of the end parts of the two embedded grooves, supporting springs are embedded and installed at the inside of the mounting boxes, the end part of the supporting spring is connected with a sliding plate, and the end part of the sliding plate is connected with a clamping column.

[0014] The end part of the clamping column is connected with a clamping seat corresponding to the mounting box, clamping holes are formed at both sides of the clamping seat, a groove plate is arranged at the edge end of the mounting box, and a pulling block is arranged at the end part of the sliding plate.

[0015] As the utility model discloses a boiler rear smoke shaft furnace tube anti-abrasion device optimal technical scheme, the sliding plate is along the inner wall of the mounting box and slides, after the embedded clamping plate is clamped into the embedded groove, the position of the clamping column and the clamping hole corresponds, and the diameter of the clamping column is less than the diameter of the clamping hole.

[0016] As the utility model discloses a boiler rear smoke shaft furnace tube anti-abrasion device optimal technical scheme, the inside of the groove plate is provided with a guide groove, and the pulling block drives the sliding plate to slide along the guide groove.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a boiler rear smoke shaft furnace tube anti-abrasion device, has the following beneficial effects:

[0019] 1, by installing horizontal bending plate and bending plate on the suspension pipe and horizontal pipe, to replace the traditional anti-abrasion angle steel structure, the porous flat plate can effectively reduce the smoke resistance of the installation anti-abrasion device, compared with the original anti-abrasion angle steel, greatly reduce the weight of the boiler tail flue, and it is beneficial to the operation of the boiler, and the fixed bolt is used to connect the horizontal bending plate and the bending plate, so that the whole anti-abrasion device is more small and exquisite structure, and the split type connecting structure is not only convenient to install and disassemble, but also beneficial to the maintenance and detection of the boiler, and the oval mounting hole therebetween can effectively absorb the expansion difference, compared with the anti-abrasion angle steel, and the anti-abrasion angle steel is not easy to fall off or deform.

[0020] In addition, based on the combination of horizontal bending plate and bending plate to form the anti-abrasion structure, the thickness of the furnace tube can be measured by only removing the protective plate during boiler maintenance, without disassembling and installing the whole device, and combined with the split type connecting structure of the anti-abrasion structure, once the protective plate is deformed, it is convenient to optimize again.

[0021] 2, by setting embedding groove, mounting box, supporting spring, sliding plate, clamping column, embedded clamping plate, clamping seat, clamping hole, groove plate and pulling block in the edge of the connecting seat, the embedded clamping plate is clamped into the embedding groove, the clamping seat is arranged between the two mounting boxes, and the clamping column is moved by pulling the sliding plate, so that the clamping column can be clamped into the clamping hole, so as to lock and limit the position of the embedded clamping plate, so as to connect the multiple connecting seats, so that the multiple connecting seats form an integral structure after installation and connection, further prevent the position of the horizontal pipe from loosening, improve the stability of the connection between the connecting seat and the horizontal pipe, and the sliding plate is moved by the pulling block, the clamping column is moved out of the clamping hole, and then the limiting relationship between the adjacent two connecting seats is released, and then the horizontal pipe is convenient to disassemble.

[0022] 3, convenient for the position of multiple groups of horizontal pipes is limited through the connecting seat and the pipe seat, and through the installation pipe hole, the suspension pipe is convenient for installation, ensures the accuracy of the installation position of the suspension pipe and the horizontal pipe, and through the edge part clamping seat, the accommodating groove, the threaded rod and the locking nut, the multiple connecting seats are conveniently and tightly connected through the connecting and tensioning effect of the threaded rod and the locking nut on the edge part of the multiple connecting seats, so that the tightness of the contact between the connecting seat and the horizontal pipe is ensured, the stability of the multiple horizontal pipes after actual installation is further ensured, and the length of the threaded rod is adjustable, so that adaptive adjustment can be conveniently made according to actual requirements. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the utility model.

[0024] Figure 2 is a connecting structure schematic diagram of the utility model's multi-hole flat plate.

[0025] Figure 3 is a structural schematic diagram of the utility model's connecting seat.

[0026] Figure 4 is a structural schematic diagram of the utility model's embedded clamping plate.

[0027] Figure 5 is a top view of the utility model's horizontal bending plate.

[0028] Figure 6 is a top view of the utility model's multi-hole flat plate.

[0029] Among them:

[0030] 1-suspension pipe; 2-horizontal pipe; 3-connecting seat; 4-installation pipe hole; 5-pipe seat; 6-horizontal bending plate; 7-fitting circular groove; 8-bending plate; 9-multi-hole flat plate; 10-fixing bolt; 11-supporting L plate; 12-butting groove; 13-mounting plate; 14-limiting seat; 15-edge part clamping seat; 16-accommodating groove; 17-threaded rod; 18-locking nut; 19-embedded groove; 20-mounting box; 21-supporting spring; 22-sliding plate; 23-clamping column; 24-embedded clamping plate; 25-clamping seat; 26-clamping hole; 27-groove plate; 28-pulling block DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0032] Referring to Figures 1-6 The utility model provides the following technical scheme: Boiler rear smoke well furnace pipe anti -wear device, including suspension pipe 1 and horizontal pipe 2, the both sides of suspension pipe 1 are provided with multiple groups of horizontal pipe 2 along the horizontal direction equidistance, and multiple groups of horizontal pipe 2 are supported through connecting seat 3, and the inside of connecting seat 3 is provided with installation pipe hole 4, and suspension pipe 1 is embedded in installation pipe hole 4, and the both side end portions of connecting seat 3 are all fixedly connected with pipe seat 5, and horizontal pipe 2 is placed between two adjacent pipe seats 5.

[0033] The horizontal pipe 2 at the topmost position of suspension pipe 1 is provided with horizontal bent plate 6, and the inside of horizontal bent plate 6 is provided with fitting circular groove 7 corresponding to suspension pipe 1, and suspension pipe 1 is embedded into fitting circular groove 7, and the both side bottom ends of horizontal bent plate 6 are all fixedly connected with bent plate 8, and one side of horizontal bent plate 6 is connected with multi -hole flat plate 9, and multi -hole flat plate 9 is detachably connected with horizontal bent plate 6 through fixed bolt 10.

[0034] The top of horizontal bent plate 6 is provided with support L plate 11 at the both side positions of suspension pipe 1, and the inside of horizontal bent plate 6 and multi -hole flat plate 9 is all provided with oval mounting hole corresponding to fixed bolt 10, and fixed bolt 10 is placed in the mounting hole, and the both end portions of two support L plates 11 are connected and fixed through limiting bolt between two limiting seats 14, and the butt joint groove 12 of the edge of two support L plates 11 is spliced to form limiting circular groove, and suspension pipe 1 is embedded and connected in limiting circular groove, and horizontal bent plate 6 and bent plate 8 replace traditional anti -wear angle steel structure, and multi -hole flat plate 9 can effectively reduce the flue gas resistance increased by installing anti -wear device, and fixed bolt 10 is used to connect horizontal bent plate 6 and bent plate 8, which is convenient for installation and dismounting, and cooperating with the oval mounting hole therebetween, can effectively absorb the expansion difference, and is not prone to falling off or deformation, and the middle end of the opposite side edge of two support L plates 11 is provided with butt joint groove 12, and suspension pipe 1 is embedded and connected in butt joint groove 12, and the bottom end of support L plate 11 is detachably connected with the top of horizontal bent plate 6 through mounting plate 13, and the edge end position of the opposite side of two support L plates 11 is provided with limiting seat 14.

[0035] The edge end of pipe seat 5 is provided with edge part clamping seat 15, the inside of edge part clamping seat 15 is provided with containing groove 16, containing groove 16 is embeddedly connected with threaded rod 17 on the inside, and the top end and bottom end outside of threaded rod 17 are all connected with locking nut 18 through screw thread, and the end face of locking nut 18 is in close contact with edge part clamping seat 15, and the length of threaded rod 17 can be adjusted according to the superposition height of multiple connecting seats 3, and multiple connecting seats 3 are closely connected through the connecting tensioning effect of threaded rod 17 and locking nut 18.

[0036] The front side of the connecting seat 3 is symmetrically provided with two embedding grooves 19 in the vertical direction, and the two embedding grooves 19 are fixedly provided with mounting boxes 20 on both sides of the end portions, the inner side of the mounting box 20 is embeddedly provided with a supporting spring 21, the end portion of the supporting spring 21 is connected with a sliding plate 22, and the end portion of the sliding plate 22 is connected with a clamping column 23;

[0037] The inner side of the embedding groove 19 is embeddedly connected with an embedding clamping plate 24, the end portion of the embedding clamping plate 24 is connected with a clamping seat 25 at the position of the mounting box 20, both sides of the clamping seat 25 are provided with clamping holes 26, the sliding plate 22 slides along the inner wall of the mounting box 20, after the embedding clamping plate 24 is clamped into the embedding groove 19, the clamping column 23 corresponds to the position of the clamping hole 26, and the diameter of the clamping column 23 is smaller than that of the clamping hole 26, the clamping column 23 is moved by pulling the sliding plate 22, so that the clamping column 23 can be clamped into the clamping hole 26, thereby conveniently locking and limiting the position of the embedding clamping plate 24, the edge end of the mounting box 20 is provided with a groove plate 27, the end portion of the sliding plate 22 is provided with a pulling block 28, the inner side of the groove plate 27 is provided with a guide groove, the pulling block 28 drives the sliding plate 22 to slide along the guide groove, the sliding plate 22 is moved by the pulling block 28, so that the clamping column 23 is moved out of the clamping hole 26, thereby conveniently releasing the limiting relationship between the adjacent two connecting seats 3.

[0038] The working principle and use process of the utility model are as follows: when the suspension pipe 1 and the horizontal pipe 2 are installed, the position of multiple groups of horizontal pipes 2 is conveniently limited through the connecting seat 3 and the pipe seat 5, and the suspension pipe 1 is conveniently installed through the installation pipe hole 4, the accuracy of the installation position of the suspension pipe 1 and the horizontal pipe 2 is ensured, after the suspension pipe 1 and the horizontal pipe 2 are installed through the connecting seat 3, then the embedding clamping plate 24 is clamped into the embedding groove 19, the clamping seat 25 is arranged between the two mounting boxes 20, the clamping column 23 is moved by pulling the sliding plate 22, so that the clamping column 23 can be clamped into the clamping hole 26, thereby conveniently locking and limiting the position of the embedding clamping plate 24, thereby conveniently connecting multiple connecting seats 3, so that multiple connecting seats 3 form an integral structure after installation and connection, further preventing the position of the horizontal pipe 2 from loosening, and improving the stability of the connection between the connecting seat 3 and the horizontal pipe 2;

[0039] When disassembling, the sliding plate 22 is moved by the pulling block 28, so that the clamping column 23 is moved out of the clamping hole 26, thereby conveniently releasing the limiting relationship between the adjacent two connecting seats 3, thereby facilitating the disassembly and assembly of the horizontal pipe 2

[0040] In addition, the multiple groups of connecting seats 3 are tightly connected by the connecting and tensioning effect of the threaded rods 17 and the locking nuts 18 at the edge portions of the multiple groups of connecting seats 3, so as to ensure the tightness of the contact between the connecting seats 3 and the horizontal pipes 2, further ensure the stability of the subsequent multiple groups of horizontal pipes 2 after actual installation, and the length of the threaded rods 17 is adjustable, which is convenient for adaptive adjustment according to actual needs.

[0041] In actual use, the horizontal bending plates 6 and the bending plates 8 are installed on the suspension pipes 1 and the horizontal pipes 2, so as to replace the traditional wear-resistant angle steel structure, the porous flat plate 9 can effectively reduce the flue gas resistance increased by the installation of the wear-resistant device, greatly reduces the weight of the boiler tail flue compared with the original wear-resistant angle steel, is beneficial to the operation of the boiler, and the fixed bolts 10 are used to connect the horizontal bending plates 6 and the bending plates 8, so that the whole wear-resistant device has a more compact and exquisite structure, and the split type connecting structure is not only convenient for installation and disassembly, but also is beneficial to the maintenance and detection of the boiler, and cooperates with the oval mounting holes therebetween, can effectively absorb the expansion difference, compared with the wear-resistant angle steel, is not easy to fall off or deform;

[0042] And based on the combination of the horizontal bending plates 6 and the bending plates 8 to form the wear-resistant structure, during the boiler maintenance, the thickness of the furnace pipe can be measured by only removing the protective plate, without the need to disassemble and install the whole device, and combined with the split type connecting structure of the wear-resistant structure, once the protective plate is deformed, it is convenient to optimize again.

[0043] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A boiler back pass duct tube wear protection device comprising a suspended tube (1) and a horizontal tube (2), characterized in that: The both sides of the suspension pipe (1) are equidistantly provided with a plurality of groups of horizontal pipes (2) in the horizontal direction, the plurality of groups of horizontal pipes (2) are supported through connecting seats (3), the inside of the connecting seat (3) is provided with a mounting pipe hole (4), the suspension pipe (1) is embedded and mounted in the mounting pipe hole (4), the both side ends of the connecting seat (3) are fixedly connected with pipe seats (5), and the horizontal pipe (2) is arranged between the adjacent two pipe seats (5). The horizontal pipe (2) located at the topmost position of the suspension pipe (1) is provided with a horizontal bent plate (6), the inside of the horizontal bent plate (6) is provided with a matching circular groove (7) corresponding to the suspension pipe (1), the suspension pipe (1) is embedded into the matching circular groove (7), the both side bottom ends of the horizontal bent plate (6) are fixedly connected with bent plates (8), and one side of the horizontal bent plate (6) is connected with a multi-hole flat plate (9), and the multi-hole flat plate (9) and the horizontal bent plate (6) are detachably connected through fixed bolts (10). The top of the horizontal bent plate (6) is symmetrically provided with support L plates (11) at the positions of the both sides of the suspension pipe (1), the opposite side edges of the two support L plates (11) are provided with butt grooves (12) at the middle ends, the suspension pipe (1) is embedded and connected in the butt grooves (12), the bottom end of the support L plate (11) is detachably connected with the top of the horizontal bent plate (6) through a mounting plate (13), and the edge end positions of the opposite sides of the two support L plates (11) are provided with limiting seats (14). The edge end of the pipe seat (5) is provided with an edge clamping seat (15), the inside of the edge clamping seat (15) is provided with a containing groove (16), the inside of the containing groove (16) is embeddedly connected with a threaded rod (17), and the top end and the bottom end of the threaded rod (17) are both externally threadedly connected with locking nuts (18).

2. The boiler backpass duct tube wear shield of claim 1, wherein: The inside of the horizontal bent plate (6) and the multi-hole flat plate (9) is provided with an oval mounting hole corresponding to the fixed bolt (10), the fixed bolt (10) is arranged in the mounting hole, the two limiting seats (14) at the edge ends of the two support L plates (11) are connected and fixed through limiting bolts, the butt grooves (12) of the edge ends of the two support L plates (11) are spliced to form limiting circular grooves, and the suspension pipe (1) is embeddedly connected in the limiting circular grooves.

3. The boiler backpass duct tube wear shield of claim 1 wherein: The end face of the locking nut (18) is in close contact with the edge clamping seat (15), and the length of the threaded rod (17) can be adjusted according to the superposition height of the plurality of connecting seats (3).

4. The boiler backpass duct tube wear shield of claim 1 wherein: The front edge of the connecting seat (3) is symmetrically provided with two embedded grooves (19) in the vertical direction, the both side ends of the end portions of the two embedded grooves (19) are fixedly provided with mounting boxes (20), the inside of the mounting box (20) is embeddedly provided with a supporting spring (21), the end portion of the supporting spring (21) is connected with a sliding plate (22), and the end portion of the sliding plate (22) is connected with a clamping column (23). The inner side of the embedding groove (19) is embeddedly connected with an embedding card plate (24), and the end of the embedding card plate (24) is connected with a clamping seat (25) at the position of the mounting box (20), both sides of the clamping seat (25) are provided with clamping holes (26), and the edge end of the mounting box (20) is provided with a groove plate (27), and the end of the sliding plate (22) is provided with a pulling block (28).

5. The boiler backpass duct tube wear shield of claim 4 wherein: The sliding plate (22) slides along the inner wall of the mounting box (20), the embedding card plate (24) is clamped into the embedding groove (19), the clamping column (23) corresponds to the position of the clamping hole (26), and the diameter of the clamping column (23) is smaller than that of the clamping hole (26).

6. The boiler backpass duct tube wear shield of claim 4 wherein: The inside of the groove plate (27) is provided with a guide groove, and the pulling block (28) drives the sliding plate (22) to slide along the guide groove.

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