Dust deposition treatment device for boiler air pre-heater

Abstract

The invention discloses a boiler air pre-heater accumulated ash treatment device which comprises a base. The base is used for supporting the whole mechanism element, and the supporting frame is provided with universal wheels, a telescopic air cylinder, supporting legs, a lifting adjusting assembly and an efficient cleaning assembly. The device relates to the technical field of air pre-heater maintenance and has the following beneficial effects that through cooperation of the lifting adjusting assembly and the efficient cleaning assembly, the device can automatically conduct pipe hole cleaning and water vapor cleaning work in the cleaned pipe hole, the pipe hole dust cleaning work of the air pre-heater can be efficiently completed, meanwhile, dryness of the interior of a pipe body can be guaranteed, and the service life of the air pre-heater is prolonged. Therefore, the service life of the air pre-heater can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of air preheater maintenance, and in particular to a boiler air preheater dust accumulation treatment device. Background Art

[0002] The air preheater is a heating surface that preheats the air before entering the boiler to a certain temperature through the internal heat sink. It is a device used to improve the heat exchange performance of the boiler and reduce energy consumption. Air preheaters are generally divided into three types: plate type, rotary type and tube type. The pipes of the tube air preheater are prone to blockage after long-term use. The conventional cleaning method is for workers to hold water guns and spray clean each pipe hole, but this process is very labor-intensive and time-consuming, with poor cleaning effect and low efficiency. After cleaning, water vapor and water droplets will remain in the air preheater pipe holes. If the air preheater needs to be left for a period of time after cleaning before use, it will easily rust and corrode. Summary of the invention

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: a boiler air preheater ash accumulation treatment device, comprising a base; the base is used to support the entire mechanism element, and the support frame is provided with: universal wheels, telescopic cylinders, support legs, lifting and adjusting components and efficient cleaning components; The universal wheel is installed at the bottom of the base, the telescopic cylinder is installed on the base, and the support leg is installed on the telescopic end of the telescopic cylinder; The lifting and adjusting assembly includes: a lifting rod, a lifting hole, a lifting frame, a threaded hole, a lead screw, a driving slot and a driver; The lifting rod is installed on the base, the lifting hole is provided on the lifting frame, the lifting frame is sleeved on the lifting rod through the lifting hole, the threaded hole is provided on the lifting frame, the driving slot is provided on the base, the driver is installed in the driving slot, the lead screw is connected to the output end of the driver and passes through the threaded hole; the high-efficiency cleaning component can be driven to be lifted and lowered by this component; The high-efficiency cleaning component includes: a water tank, a water spray pipe, a nozzle, a pressure pump, a corrugated water pumping pipe, a first transmission groove, a positive thread screw, a reverse bolt screw, a screw slider, a motor box, a drive motor, a mobile frame, a fixed frame, a second transmission groove, a screw module, an electric push rod, an equipment frame, a fan and an air jet pipe; The water tank is installed on the base, the second transmission groove is opened in the lifting frame, the motor box is installed on the lifting frame, the drive motor is installed in the motor box, the positive thread screw is connected to the reverse bolt screw and installed in the second transmission groove, the other end of the positive thread screw is connected to the output end of the drive motor, the screw slider is sleeved on the positive thread screw and the reverse bolt screw, the fixed frame is fixedly installed on the lifting frame, the movable frame is connected to the screw slider, the water spray pipe is installed on the movable frame and the fixed frame, the corrugated water pumping pipe is connected between the water spray pipe and the water tank, the booster pump is installed on the water spray pipe, and then the nozzle is installed at the front end of the water spray pipe, the second transmission groove is opened in the movable frame and the fixed frame, the screw module is installed on the second transmission groove, the electric push rod is connected to the slider in the screw module, the equipment frame is installed on the telescopic end of the electric push rod, the fan is installed on the equipment frame, and the jet pipe is connected to the air outlet of the fan. The cleaning and air drying of the air preheater pipe hole can be automatically completed by this component.

[0004] Preferably, the nozzle and the front end of the jet pipe are provided with an inclined water outlet channel.

[0005] Preferably, the water tank is provided with a water replenishment port.

[0006] Preferably, the nozzle and the front end diameter of the air jet pipe are smaller than the tube hole of the air preheater.

[0007] Preferably, a controller is provided on the base.

[0008] Preferably, the movable frame, the fixed frame and the equipment frame are provided with infrared scanning heads.

[0009] Preferably, a rubber pad is provided at the bottom of the supporting leg.

[0010] Beneficial Effects The boiler air preheater ash accumulation treatment device has the following beneficial effects: In this case, through the cooperation of the lifting and adjusting components and the high-efficiency cleaning components, the device can automatically clean the pipe holes and clean the water vapor inside the pipe holes after cleaning. While efficiently completing the dust cleaning work of the air preheater pipe holes, it can also ensure the dryness of the inside of the pipe body, thereby extending the service life of the air preheater. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional main structural schematic diagram of a boiler air preheater ash accumulation treatment device described in the present invention.

[0012] Figure 2 This is a schematic diagram of the main structure of a boiler air preheater ash accumulation treatment device according to the present invention.

[0013] Figure 3It is a side structural schematic diagram of a boiler air preheater ash accumulation treatment device according to the present invention.

[0014] Figure 4 This is a schematic diagram of an efficient cleaning component of a boiler air preheater ash treatment device described in the present invention.

[0015] Figure 5-8 It is a partially enlarged structural schematic diagram of a boiler air preheater ash accumulation treatment device according to the present invention.

[0016] Fig. 9 This is a schematic diagram of the internal structure of a nozzle of a boiler air preheater ash treatment device according to the present invention.

[0017] In the figure: 1, base; 2, universal wheel; 3, telescopic cylinder; 4, supporting leg; 5, lifting rod; 6, lifting hole; 7, lifting frame; 8, threaded hole; 9, lead screw; 10, drive slot; 11, driver; 12, water tank; 13, water spray pipe; 14, nozzle; 15, pressure pump; 16, corrugated water pumping pipe; 17, first transmission slot; 18, positive thread lead screw; 19, reverse bolt lead screw; 20, lead screw slider; 21, motor box; 22, drive motor; 23, mobile frame; 24, fixed frame; 25, second transmission slot; 26, lead screw module; 27, electric push rod; 28, equipment frame; 29, fan; 30, jet pipe; DETAILED DESCRIPTION

[0018] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0019] See also Figure 1-9 , the present invention provides a technical solution.

[0020] A boiler air preheater ash accumulation treatment device comprises a base 1; the base 1 is used to support the entire mechanism element, and the support frame is provided with: a universal wheel 2, a telescopic cylinder 3, a support leg 4, a lifting and adjusting component and a high-efficiency cleaning component; The universal wheel 2 is installed at the bottom of the base 1, the telescopic cylinder 3 is installed on the base 1, and the supporting leg 4 is installed on the telescopic end of the telescopic cylinder 3; The lifting and adjusting assembly includes: a lifting rod 5, a lifting hole 6, a lifting frame 7, a threaded hole 8, a lead screw 9, a driving slot 10 and a driver 11; The lifting rod 5 is installed on the base 1, the lifting hole 6 is provided on the lifting frame 7, the lifting frame 7 is sleeved on the lifting rod 5 through the lifting hole 6, the threaded hole 8 is provided on the lifting frame 7, the driving groove 10 is provided on the base 1, the driver 11 is installed in the driving groove 10, the lead screw 9 is connected to the output end of the driver 11 and passes through the threaded hole 8; the high-efficiency cleaning component can be driven to be lifted and lowered by this component; The high-efficiency cleaning component includes: a water tank 12, a water spray pipe 13, a nozzle 14, a pressure pump 15, a corrugated water pumping pipe 16, a first transmission groove 17, a positive thread screw 18, a reverse bolt screw 19, a screw slider 20, a motor box 21, a drive motor 22, a mobile frame 23, a fixed frame 24, a second transmission groove 25, a screw 9 module, an electric push rod 27, an equipment frame 28, a fan 29 and an air jet pipe 30; The water tank 12 is installed on the base 1, the second transmission groove 25 is opened in the lifting frame 7, the motor box 21 is installed on the lifting frame 7, the drive motor 22 is installed in the motor box 21, the positive thread screw 18 is connected to the reverse bolt screw 19 and installed in the second transmission groove 25, the other end of the positive thread screw 18 is connected to the output end of the drive motor 22, the screw slider 20 is sleeved on the positive thread screw 18 and the reverse bolt screw 19, the fixed frame 24 is fixedly installed on the lifting frame 7, the mobile frame 23 is connected to the screw slider 20, and the water spray pipe 13 is installed on the mobile frame 23 and the fixed frame 2 4, the corrugated water pumping pipe 16 is connected between the water spraying pipe 13 and the water tank 12, the booster pump 15 is installed on the water spraying pipe 13, and then the nozzle 14 is installed at the front end of the water spraying pipe 13, the second transmission groove 25 is opened in the movable frame 23 and the fixed frame 24, the screw 9 module is installed on the second transmission groove 25, the electric push rod 27 is connected to the slider in the screw 9 module, the equipment frame 28 is installed on the telescopic end of the electric push rod 27, the fan 29 is installed on the equipment frame 28, and the jet pipe 30 is connected to the air outlet of the fan 29. The cleaning and air drying of the air preheater pipe hole can be automatically completed by this component.

[0021] It should be noted that when cleaning, the driver 11 is started to drive the lead screw 9 to rotate in the threaded hole 8, and then the lifting frame 7 can be adjusted up and down on the lifting rod 5. By starting the drive motor 22 to drive the positive threaded lead screw 18 and the counter-bolt lead screw 19 to rotate simultaneously, the lead screw slider 20 can be moved on the threaded lead screw 9 and the counter-bolt lead screw 19, thereby driving the moving frame 23 to adjust the distance between the nozzles 14, so that the nozzles 14 can be smoothly moved into the air preheater pipe hole, and then the telescopic cylinder 3 pushes the support leg 4 down until it rests on the ground to achieve a braking effect, thereby completing the fixation of the position of the base 1 to prevent the base 1 from being displaced by the universal wheel 2, and then the pressure pump 1 Water is drawn out from the water tank 12 and pressurized through the water spray pipe 13 and the corrugated water pump pipe 16, and the pressurized water is sprayed out from the nozzle 14, so as to realize the cleaning work inside the pipe hole. After the first row of pipe holes are cleaned and the second row of pipe holes are cleaned, the screw 9 module drives the electric push rod 27 and the equipment frame 28 to move forward together, so as to extend the jet pipe 30 into the air preheater pipe hole, and then the fan 29 is started, and then the air flow can be injected into the air preheater pipe hole to blow out the residual water vapor and water droplets, so as to ensure the dryness of the pipeline and prevent the corrosion of the pipe body. After the cleaning work is completed, the whole device can be moved sideways to clean the next vertical row of pipe holes in the horizontal direction of the air preheater.

[0022] Preferably, further, the nozzle 14 and the front end of the air injection pipe 30 are provided with inclined water outlet channels.

[0023] It should be noted that the inclined water outlet channel can ensure that the water flow can be sprayed out at an angle, thereby making it easier to clean the inner wall surface of the air preheater tube hole.

[0024] Preferably, further, the water tank 12 is provided with a water replenishment port.

[0025] It should be noted that the water replenishment port is used to replenish the water tank 12 with water in a timely manner.

[0026] Preferably, further, the nozzle 14 and the front end diameter of the air injection pipe 30 are smaller than the tube hole of the air preheater.

[0027] It should be noted that by setting the front end diameter of the nozzle 14 and the injection pipe 30 to be smaller than the tube hole size of the air preheater, it can be ensured that the nozzle 14 and the injection pipe 30 can be smoothly extended into the tube hole of the air preheater.

[0028] Preferably, the base 1 is further provided with a controller.

[0029] It should be noted that the controller is used to facilitate personnel to operate the device.

[0030] Preferably, further, the movable frame 23, the fixed frame 24 and the equipment frame 28 are provided with infrared scanning heads.

[0031] It should be noted that the infrared scanning head can scan the position of the tube hole of the air preheater, thereby helping the nozzle 14 and the injection pipe 30 to accurately extend into the tube hole of the air preheater.

[0032] Preferably, further, a rubber pad is provided at the bottom of the supporting leg 4.

[0033] It should be noted that the rubber pad can increase the friction between the support leg 4 and the ground to achieve a better braking effect.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler air preheater ash accumulation treatment device, comprising a base (1); the base (1) is used to support the entire mechanism element, characterized in that: The support frame is provided with: universal wheels (2), telescopic cylinders (3), support legs (4), lifting and lowering adjustment components and high-efficiency cleaning components; The universal wheel (2) is mounted on the bottom of the base (1), the telescopic cylinder (3) is mounted on the base (1), and the supporting leg (4) is mounted on the telescopic end of the telescopic cylinder (3); The lifting and adjusting assembly comprises: a lifting rod (5), a lifting hole (6), a lifting frame (7), a threaded hole (8), a lead screw (9), a driving slot (10) and a driver (11); The lifting rod (5) is installed on the base (1), the lifting hole (6) is provided on the lifting frame (7), the lifting frame (7) is sleeved on the lifting rod (5) through the lifting hole (6), the threaded hole (8) is provided on the lifting frame (7), the driving groove (10) is provided on the base (1), the driver (11) is installed in the driving groove (10), and the lead screw (9) is connected to the output end of the driver (11) and passes through the threaded hole (8); The high-efficiency cleaning component comprises: a water tank (12), a water spray pipe (13), a spray head (14), a pressure pump (15), a corrugated water pumping pipe (16), a first transmission groove (17), a positive thread screw (18, a reverse bolt screw (19), a screw (9) slider, a motor box (21), a drive motor (22), a moving frame (23), a fixed frame (24), a second transmission groove (25), a screw module (26), an electric push rod (27), an equipment frame (28), a fan (29) and an air jet pipe (30); The water tank (12) is mounted on the base (1); the second transmission groove (25) is opened in the lifting frame (7); the motor box (21) is mounted on the lifting frame (7); the drive motor (22) is mounted in the motor box (21); the positive thread screw (18) is connected to the reverse bolt screw (19) and is mounted in the second transmission groove (25); the other end of the positive thread screw (18) is connected to the output end of the drive motor (22); the screw (9) slider is sleeved on the positive thread screw (18) and the reverse bolt screw (19); the fixed frame (24) is fixedly mounted on the lifting frame (7); the movable frame (23) is connected to the screw (9) slider; the water spray pipe (13) is mounted on the movable frame (23) The movable frame (23) and the fixed frame (24) are connected to each other, the corrugated water pumping pipe (16) is connected between the water spraying pipe (13) and the water tank (12), the booster pump (15) is installed on the water spraying pipe (13), and then the nozzle (14) is installed at the front end of the water spraying pipe (13), the second transmission groove (25) is opened in the movable frame (23) and the fixed frame (24), the screw module (26) is installed on the second transmission groove (25), the electric push rod (27) is connected to the slider in the screw module (26), the equipment frame (28) is installed on the telescopic end of the electric push rod (27), the fan (29) is installed on the equipment frame (28), and the jet pipe (30) is connected to the air outlet of the fan (29).

2. A boiler air preheater ash treatment device according to claim 1, characterized in that: The nozzle (14) and the front end of the air injection pipe (30) are provided with inclined water outlet channels.

3. A boiler air preheater ash treatment device according to claim 1, characterized in that: The water tank (12) is provided with a water replenishment port.

4. The boiler air preheater ash treatment device according to claim 1, characterized in that: The diameters of the front ends of the nozzle (14) and the air injection pipe (30) are smaller than the tube holes of the air preheater.

5. The boiler air preheater ash accumulation treatment device according to claim 1, characterized in that: The base (1) is provided with a controller.

6. The boiler air preheater ash treatment device according to claim 1, characterized in that: Infrared scanning heads are arranged on the movable frame (23), the fixed frame (24) and the equipment frame (28).

7. The boiler air preheater ash accumulation treatment device according to claim 1, characterized in that: A rubber pad is provided at the bottom of the supporting leg (4).

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