Thermal power plant boiler water cooling wall cleaning device

Abstract

The utility model discloses a thermal power plant boiler water wall cleaning device which comprises a boiler and an ash cleaning mechanism, a combustion chamber is arranged on one side in the boiler, a water sump is arranged at the upper end of the boiler, a steam pipe is arranged in the middle of the upper end of the water sump, and a plurality of heat exchange pipes are fixedly arranged on one side of the combustion chamber. A smoke discharging bin is fixedly arranged on one side of the surface of the boiler, the heat exchange pipe penetrates through the water bin and extends into the smoke discharging bin, a sealing plate is fixedly arranged on one side of the smoke discharging bin, a smoke discharging pipe is fixedly arranged at the upper end of the smoke discharging bin, and the ash removing mechanism comprises a shell, a screw rod, a threaded sleeve and a first cleaning block. According to the device, the cleaning of a water cooling wall of a boiler flue is improved, the first cleaning block can be automatically pushed to be inserted into the flue, so that soot deposited in the flue can be scraped and removed, the soot is pushed into a combustion chamber, the soot and ash in the combustion chamber can be discharged together, the working efficiency is high, the soot removal effect is good, and the device is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler cleaning technical field, concretely is a kind of boiler water cooling wall cleaning device in thermal power plant. BACKGROUND

[0002] The boiler in thermal power plant is the necessary equipment in prior art of thermal power generation, so that heat produces steam by burning water, and then steam is used to generate electricity, and the water cooling wall in the boiler is an important component of the boiler, which mainly absorbs the heat of high-temperature flame and flue gas in the furnace, protects the furnace wall, and heats the water into steam to provide power for power generation.

[0003] In order to ensure the heating effect, a large amount of furnace ash is left on the surface of the water cooling wall after long-term use, which easily causes heat transfer to be blocked and affects the boiling efficiency, so the water cooling wall needs to be cleaned regularly. For the area of the boiler burning coal, it is relatively easy to clean up due to the large space, but for the flue gas heat exchange pipeline of the boiler, it is relatively troublesome to clean up due to the narrow pipeline. Therefore, there is a lack of a device for conveniently cleaning the flue gas water cooling wall, and therefore a boiler water cooling wall cleaning device for thermal power plant needs to be improved. SUMMARY

[0004] The utility model aims at providing a boiler water cooling wall cleaning device for thermal power plant to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a boiler water cooling wall cleaning device for thermal power plant, comprising a boiler and a dust removal mechanism, the inside of the boiler is provided with a combustion chamber on one side, the upper end of the boiler is provided with a water bin, the upper end of the water bin is provided with a steam pipe in the middle, the combustion chamber is fixedly provided with a plurality of heat exchange pipes on one side, the surface of the boiler is fixedly provided with a smoke exhaust bin on one side, the heat exchange pipes extend through the water bin to the inside of the smoke exhaust bin, the smoke exhaust bin is fixedly provided with a sealing plate on one side, the upper end of the smoke exhaust bin is fixedly provided with a smoke exhaust pipe, and the dust removal mechanism comprises a shell, a screw rod, a threaded sleeve, and a first cleaning block.

[0006] Preferably, a limiting groove is formed in the upper end of the outer surface of the screw rod, a limiting block is fixedly arranged on one side of the inside of the shell, and the limiting block is movably clamped in the limiting groove. The limiting block and the limiting groove can prevent the screw rod from rotating. When the threaded sleeve rotates, the screw rod can be driven to move forward and backward under the action of the thread, so that the first cleaning block can be inserted into the heat exchange pipe, and the inner side wall of the heat exchange pipe can be conveniently scraped and cleaned of soot.

[0007] Preferably, the inside of the shell is fixedly provided with an electric motor at the lower end of the threaded sleeve, the power output shaft of the electric motor is fixedly provided with a gear, and the outer surface of the threaded sleeve is uniformly fixedly provided with a plurality of clamping teeth, the gear and the clamping teeth are engaged with each other, and the gear can be conveniently driven to rotate by the electric motor, so that the threaded sleeve can be driven to rotate by the gear cooperating with the clamping teeth.

[0008] Preferably, the lower end of the shell is fixedly provided with a handle, and the handle can facilitate the scraping and cleaning work of the heat exchange pipe inner side wall by the ash removal mechanism.

[0009] Preferably, a connecting flange is arranged between the sealing plate and the smoke exhaust bin, the sealing plate can be quickly connected with the smoke exhaust bin through the connecting flange, and when the inner side wall of the heat exchange pipe needs to be cleaned, the sealing plate can be disassembled first, so that the inner side wall of the heat exchange pipe can be conveniently cleaned, heat transfer is facilitated, and the water in the water bin is more easily heated.

[0010] Preferably, the screw rod is fixedly provided with a second cleaning block at the end away from the first cleaning block, and the second cleaning block can play a limiting role to prevent the screw rod from falling out of the threaded sleeve.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The utility model discloses a handle is held to open the electric motor, and the threaded sleeve can be driven to rotate through the electric motor, the gear and the clamping tooth, at the moment, the screw rod is driven to move back and forth under the action of the screw, so that the first cleaning block can be inserted into the heat exchange pipe, thereby facilitating the scraping and cleaning of the inner side wall of the heat exchange pipe.

[0013] 2. The utility model discloses convenient to use, and convenient operation only needs staff to hold the handle, makes the first cleaning block and the heat exchange pipe alignment, then the cleaning work is rotated completely through the electric motor, to push the screw rod, the first cleaning block carries out the cleaning work, convenient to use, convenient to clean, and it is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the utility model discloses a kind of boiler water-cooled wall cleaning device of thermal power plant;

[0015] Figure 2 It is the sectional view of the utility model discloses a kind of boiler water-cooled wall cleaning device of thermal power plant; Figure One ;

[0016] Figure 3 The utility model provides a kind of sectional view of the boiler water cooling wall cleaning device of thermal power plant Figure Two ;

[0017] Figure 4 It is the overall structure view of the ash removal mechanism in the boiler water cooling wall cleaning device of thermal power plant of the utility model;

[0018] Figure 5 It is the internal structure view of the shell in the boiler water cooling wall cleaning device of thermal power plant of the utility model.

[0019] In the drawing: 1, boiler;2, combustion chamber;3, steam pipe;4, heat exchange pipe;5, smoke discharging bin;6, sealing plate;7, smoke pipe;8, shell;9, screw;10, threaded sleeve;11, first cleaning block;12, limit slot;13, limit block;14, motor;15, gear;16, clamping tooth;17, handle;18, connecting flange;19, water bin;20, second cleaning block. DETAILED DESCRIPTION

[0020] 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides a kind of technical schemes: a kind of boiler 1 water cooling wall cleaning device of thermal power plant, including boiler 1 and ash removal mechanism, the inside one side of boiler 1 is provided with combustion chamber 2, the upper end of boiler 1 is provided with water bin 19, the upper end middle part of water bin 19 is provided with steam pipe 3, the one side of combustion chamber 2 is fixedly provided with a plurality of heat exchange pipes 4, the surface one side of boiler 1 is fixedly provided with smoke discharging bin 5, the heat exchange pipe 4 is inserted through water bin 19 and extends to the inside of smoke discharging bin 5, the one side of smoke discharging bin 5 is fixedly provided with sealing plate 6, the upper end of smoke discharging bin 5 is fixedly provided with smoke pipe 7, the ash removal mechanism includes shell 8, screw 9, threaded sleeve 10, first cleaning block 11, the inside of shell 8 is movably inserted and arranged with screw 9, the middle part of shell 8 inboard is movably provided with threaded sleeve 10 by bearing, the threaded sleeve 10 is movably set on the outer surface of screw 9 by screw, and the one end of screw 9 is fixedly provided with first cleaning block 11.

[0022] The outer surface of the screw rod 9 is provided with a limiting groove 12 at the upper end, and a limiting block 13 is fixedly arranged on one side of the inner part of the shell 8, which is movably clamped in the limiting groove 12. The limiting block 13 and the limiting groove 12 can prevent the screw rod 9 from rotating. When the threaded sleeve 10 rotates, the screw rod 9 can be driven to move forward and backward under the action of the thread, so that the first cleaning block 11 can be inserted into the heat exchange pipe 4, thereby facilitating the scraping and cleaning of the inner side wall of the heat exchange pipe 4.

[0023] The motor 14 is fixedly arranged at the lower end of the threaded sleeve 10 in the inner part of the shell 8, and the power output shaft end of the motor 14 is fixedly provided with a gear 15. The outer surface of the threaded sleeve 10 is uniformly provided with a plurality of clamping teeth 16, and the gear 15 and the clamping teeth 16 are engaged with each other. The motor 14 can conveniently drive the gear 15 to rotate, so that the threaded sleeve 10 can be driven to rotate by the gear 15 cooperating with the clamping teeth 16.

[0024] The handle 17 is fixedly arranged at the lower end of the shell 8, which can facilitate the scraping and cleaning of the inner side wall of the heat exchange pipe 4.

[0025] The connecting flange 18 is arranged between the sealing plate 6 and the smoke exhaust chamber 5, which can conveniently connect the sealing plate 6 and the smoke exhaust chamber 5. When the inner side wall of the heat exchange pipe 4 needs to be cleaned, the sealing plate 6 can be removed first, so that the inner side wall of the heat exchange pipe 4 can be conveniently cleaned, thereby facilitating the heat transfer and more easily heating the water in the water tank 19.

[0026] The second cleaning block 20 is fixedly arranged at the end of the screw rod 9 away from the first cleaning block 11, which can play a limiting role to prevent the screw rod 9 from falling out of the threaded sleeve 10.

[0027] Working principle: the combustion chamber 2 of the boiler 1 is combusted, and the combustion heat directly heats the upper end of the water tank 19. The smoke gas enters the smoke exhaust chamber 5 through the heat exchange pipe 4, and then is discharged from the smoke exhaust pipe 7. At this time, the heat of the smoke gas can be further exchanged with the water in the water tank 19 through the heat exchange pipe 4, thereby achieving the effect of boiling water to generate steam for power generation.

[0028] When the device is used, the inner side wall of the heat exchange pipe 4 will gradually be covered with soot, which will result in a decrease in heat transfer effect, at which point cleaning is required, at which point the sealing plate 6 is opened, and then the first cleaning block 11 is inserted into the heat exchange pipe 4, and then the electric motor 14 is opened by holding the handle 17, and the threaded sleeve 10 is driven to rotate by the electric motor 14, the gear 15 and the clamping tooth 16, at which point the threaded screw 9 is driven to move forward and backward, thereby pushing the first cleaning block 11 to be inserted into the heat exchange pipe 4, so that the soot on the inner side wall of the heat exchange pipe 4 can be scraped and cleaned; thus, the device is improved for cleaning the water-cooled wall of the flue of the boiler 1, and the first cleaning block 11 can be automatically pushed to be inserted into the flue, so that the soot deposited in the flue can be scraped and removed, and the soot can be pushed into the combustion chamber 2, so that the soot can be discharged together with the ash in the combustion chamber 2, and the working efficiency is high, the soot removal effect is good, and the device is convenient to use.

[0029] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for cleaning the water-cooled walls of a boiler of a thermal power plant, comprising a boiler (1) and a soot-blowing mechanism, characterized in that: The boiler (1) is internally provided with a combustion chamber (2), the upper end of the boiler (1) is provided with a water bin (19), the upper end of the water bin (19) is provided with a steam pipe (3), the combustion chamber (2) is fixedly provided with a plurality of heat exchange pipes (4) on one side, the surface of the boiler (1) is fixedly provided with a smoke exhaust bin (5) on one side, the heat exchange pipes (4) extend to the inside of the smoke exhaust bin (5) through the water bin (19), the smoke exhaust bin (5) is fixedly provided with a sealing plate (6) on one side, the smoke exhaust bin (5) is fixedly provided with a smoke exhaust pipe (7) on the upper end, the ash removal mechanism comprises a shell (8), a screw rod (9), a threaded sleeve (10), a first cleaning block (11), the screw rod (9) is movably inserted in the shell (8), the threaded sleeve (10) is movably arranged on the inner side of the shell (8) through a bearing, the threaded sleeve (10) is movably sleeved on the outer surface of the screw rod (9) through threads, and the screw rod (9) is fixedly provided with the first cleaning block (11) on one end.

2. A device for cleaning the water wall of a boiler of a thermal power plant according to claim 1, characterized in that: The outer surface of the screw rod (9) is provided with a limiting groove (12) at the upper end, and the limiting block (13) is fixedly arranged on one side of the inside of the shell (8).

3. The device for cleaning the water-cooled wall of a boiler in a thermal power plant according to claim 1, characterized in that: The lower end of the threaded sleeve (10) is fixedly provided with a motor (14) in the shell (8), the power output shaft end of the motor (14) is fixedly provided with a gear (15), a plurality of clamping teeth (16) are uniformly fixedly arranged on the outer surface of the threaded sleeve (10), and the gear (15) and the clamping teeth (16) are in meshing relationship.

4. The device for cleaning the water-cooled wall of a boiler in a thermal power plant according to claim 1, characterized in that: The lower end of the shell (8) is fixedly provided with a handle (17).

5. The device for cleaning the water-cooled walls of a boiler of a thermal power plant according to claim 1, characterized in that: The sealing plate (6) and the smoke exhaust bin (5) are provided with a connecting flange (18).

6. A device for cleaning the water wall of a boiler of a thermal power plant according to claim 1, characterized in that: The end of the screw rod (9) away from the first cleaning block (11) is fixedly provided with a second cleaning block (20).

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