CN117923298B - Maintenance platform for overhauling boiler furnace - Google Patents
Maintenance platform for overhauling boiler furnace Download PDFInfo
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- CN117923298B CN117923298B CN202410330880.2A CN202410330880A CN117923298B CN 117923298 B CN117923298 B CN 117923298B CN 202410330880 A CN202410330880 A CN 202410330880A CN 117923298 B CN117923298 B CN 117923298B
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- maintenance platform
- connecting rod
- pipe
- maintenance
- boiler
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- 238000012423 maintenance Methods 0.000 title claims abstract description 158
- 238000004140 cleaning Methods 0.000 claims description 26
- 238000000605 extraction Methods 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 12
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the technical field of furnace overhaul, in particular to a maintenance platform for boiler furnace overhaul. The existing maintenance mode also can lead to the shaking of the steel wire rope when the maintenance platform shakes, so that the maintenance platform shakes more severely, and normal maintenance work is affected. The technical proposal is as follows: the maintenance platform for overhauling the boiler furnace comprises a bracket, a fixed plate, a crane, a traction rope, a maintenance platform and the like; the bracket is fixedly connected with a plurality of fixing plates; each fixed plate is provided with a plurality of cranes; each crane is wound with a traction rope; all the traction ropes penetrate through holes formed in the corresponding fixing plates and are jointly hung with a maintenance platform. According to the invention, the rollers tightly prop against the inner wall of the boiler, so that the supporting capacity of the rollers on the maintenance platform is improved, even if maintenance personnel walk on the maintenance platform to maintain, the maintenance platform only slightly shakes, the shaking of the traction rope and the rolling of the rollers are avoided, and the normal maintenance work is prevented from being influenced.
Description
Technical Field
The invention relates to the technical field of furnace overhaul, in particular to a maintenance platform for boiler furnace overhaul.
Background
The space in the boiler where the organized fuel burns, also called the combustion chamber, is an important component of the boiler combustion equipment; at present, a furnace is overhauled, generally, an overhauling staff stands on a maintenance platform and then lifts the lifting platform through a steel wire rope, so that the overhauling staff is transported to a required height, and the overhauling is facilitated.
However, current maintenance mode, in the maintenance in-process, when maintenance personal walks on maintenance platform in order to maintain, maintenance platform itself can take place to rock, again because be connected unstably between maintenance platform and the wire rope, when maintenance platform takes place to rock, also can lead to wire rope to take place to rock, leads to maintenance platform to rock more violently, and maintenance platform's stability is poor, influences normal maintenance work.
Disclosure of Invention
In order to overcome the defects of the problems mentioned in the background, the invention provides a maintenance platform for overhauling a boiler furnace.
The technical proposal is as follows: the maintenance platform for overhauling the boiler furnace comprises a bracket, a fixed plate, a crane, a traction rope and a maintenance platform; the bracket is fixedly connected with a plurality of fixing plates; each fixed plate is provided with a plurality of cranes; each crane is wound with a traction rope; all the traction ropes penetrate through holes formed in the corresponding fixing plates and are jointly hung with a maintenance platform; the cleaning device also comprises an electric push rod I, a U-shaped connecting plate, a connecting rod, a hexagonal nut I, a roller and a cleaning mechanism; the maintenance platform is provided with a plurality of electric push rods I which are symmetrically distributed; the telescopic part of the first electric push rod at the same side is fixedly connected with a U-shaped connecting plate; each U-shaped connecting plate is provided with a connecting rod; each connecting rod is movably connected with a plurality of hexagon nuts I which are symmetrically distributed through torsion springs; each hexagonal nut I is provided with a roller, the center points of the connecting rod, the hexagonal nut I and the roller are consistent, and the diameter of the roller is larger than that of the connecting rod; the maintenance platform and the connecting rod are connected with a cleaning mechanism for cleaning the inner wall of the boiler.
Further, the roller is made of rubber material with deformation capability.
Further, the diameter of one end of the hexagonal nut close to the connecting rod is larger than that of one end of the hexagonal nut far away from the connecting rod, and the hexagonal nut is wrapped by the roller in an adaptive mode.
Further, the cleaning mechanism comprises an ash extraction plate, a pipe rack and a telescopic pipe; the connecting rod is arranged as a brush roller; each connecting rod is provided with an ash extraction plate; each ash extraction plate is fixedly connected and communicated with a plurality of pipe frames; each pipe support is fixedly connected and communicated with a telescopic pipe, and the telescopic pipes penetrate through the maintenance platform.
Further, the cleaning mechanism also comprises a housing; each connecting rod is rotationally connected with a housing, the housing is fixedly connected and communicated with the ash extraction plate, and the connecting rods are connected with the ash extraction plate through the housing; the housing covers the bristles on the connecting rod, and the bristles on the connecting rod are contacted with the housing.
Further, the cleaning mechanism also comprises elastic protective cloth; each housing is provided with an elastic protective cloth, and the elastic protective cloth penetrates out of a rectangular hole formed in the U-shaped connecting plate and is connected with the maintenance platform.
Further, the electric push rod II, the hexagonal nut II, the clamping block and the circular ring are also included; each U-shaped connecting plate is provided with a plurality of symmetrically distributed sliding grooves, and the connecting rods are in sliding connection with the U-shaped connecting plates through the sliding grooves; each U-shaped connecting plate is provided with a plurality of second electric push rods which are symmetrically distributed; the telescopic part of each second electric push rod is fixedly connected with a circular ring respectively, and all the circular rings on the same U-shaped connecting plate are connected with the connecting rod in a rotating way; each connecting rod is fixedly connected with a plurality of hexagon nuts II which are symmetrically distributed; each U-shaped connecting plate is fixedly connected with a plurality of clamping blocks which are symmetrically distributed, and the clamping blocks are matched with the hexagon nuts at the corresponding sides.
Further, the device also comprises a connecting pipe, a main pipe, a branch pipe and an air outlet pipe; the maintenance platform is fixedly connected with a plurality of symmetrically distributed connecting pipes, and the telescopic pipes penetrate through the connecting pipes at the corresponding sides; the connecting pipes on the same side are communicated with a main pipe; each main pipe is communicated with a plurality of branch pipes; all branch pipes are communicated with an air outlet pipe; the lower part of the air outlet pipe is provided with a plurality of air outlets.
Further, the outlet duct is located the lower surface middle part of maintenance platform, and the gas outlet of the left half portion of outlet duct is towards in the left side of maintenance platform, and the gas outlet of the right half portion of outlet duct is towards in the right side of maintenance platform.
Further, the branch pipe is closely attached to the lower surface of the maintenance platform.
The beneficial effects are as follows: when the maintenance platform descends to the part to be maintained of the boiler, the telescopic part of the first electric push rod is controlled to drive the U-shaped connecting plate, the connecting rod, the first hexagonal nut and the roller to be pushed out continuously, so that the roller on the first hexagonal nut can twist by taking the hinge part of the first hexagonal nut and the connecting rod as an axis under the reaction force of the inner wall of the boiler, the roller is not positioned at the same center point with the connecting rod, at the moment, the roller and the inner wall of the boiler are in an inclined state, even if the maintenance platform shakes, the roller can not roll, and the roller tightly props against the inner wall of the boiler, the supporting capacity of the roller on the maintenance platform is improved, even if a maintenance person walks on the maintenance platform to maintain, the maintenance platform can only shake slightly, the roller can not shake, the roller can not roll, the stability of the maintenance platform is further ensured, and normal maintenance work is prevented from being influenced.
According to the invention, the diameter of one end, close to the connecting rod, of the hexagonal nut is larger than that of one end, far away from the connecting rod, of the hexagonal nut, the roller is wrapped on the hexagonal nut in an adaptive manner, when the roller is twisted by the driving force of the electric push rod I, even if the roller is twisted, the roller can be attached to the inner wall of the boiler, the contact area between the roller and the inner wall of the boiler is kept unchanged, and the stability provided by the roller is not influenced.
According to the invention, the dust in the cage area of the housing is sucked through the dust suction plate, so that the dust is cleaned and collected quickly, the dust is prevented from floating in the inner space of the boiler, the interference to the sight of maintenance personnel is avoided, or the dust is attached to the inner wall of the hearth, and the damaged or rusted part is covered, so that the normal progress of maintenance work is influenced.
According to the invention, hot air in the boiler is pushed to flow to a cleaning area where the connecting rod, the housing and the ash extraction plate are located by cold air, and is sequentially extracted through the ash extraction plate, the pipe frame and the telescopic pipe, so that the temperature is reduced by the cold air, and meanwhile, the hot air is pushed out by the cold air, and the temperature reducing effect is improved.
The invention transfers heat to the cold air flowing in the connecting pipe through the hot air flowing in the telescopic pipe, so that the temperature of the cold air is increased, the cold air with low temperature is prevented from directly entering the boiler, and the damage of parts in the boiler caused by too fast temperature change is avoided, thereby influencing the normal operation of the boiler.
Along with the gradual reduction of the internal temperature of the boiler, the temperature of hot air exhausted from the telescopic pipe can be gradually reduced, and the heat quantity of the hot air in the telescopic pipe for conducting cold air flowing in the connecting pipe is reduced, so that the temperature of the cold air sprayed out of the air spraying port of the air outlet pipe can be gradually reduced, the temperature of the cold air can be adjusted in a self-adaptive mode according to the internal temperature of the boiler, gradual cooling is realized, and the damage to parts in the boiler due to too rapid temperature change and the influence on the normal operation of the boiler are avoided.
Drawings
FIG. 1 is a schematic view of a structure of a stent of the present disclosure;
FIG. 2 is a schematic view of a maintenance platform according to the present disclosure;
FIG. 3 is a cross-sectional view of the structure of the maintenance platform disclosed in the present invention;
FIG. 4 is a schematic view showing a combined structure of a connection pipe, a main pipe, a branch pipe and an air outlet pipe according to the present invention;
FIG. 5 is a schematic view of the structure of the air outlet pipe disclosed by the invention;
FIG. 6 is a schematic view of the structure of the housing disclosed in the present invention;
FIG. 7 is a schematic view of a combination structure of a tube rack and a telescopic tube as disclosed in the present invention;
FIG. 8 is a schematic view of a combination of a hexagonal nut I, a roller and an elastic protective cloth according to the present invention;
FIG. 9 is a schematic view of a combination of a hexagonal nut I and a roller according to the present disclosure;
FIG. 10 is a cross-sectional view of the structure of the roller disclosed in the present invention;
FIG. 11 is a schematic diagram of a combination structure of a second hexagonal nut and a clamping block according to the present disclosure;
FIG. 12 is a schematic view showing a maintenance state of the disclosed boiler and maintenance platform.
Part names and serial numbers in the figure: the device comprises a 1-bracket, a 2-fixing plate, a 3-crane, a 4-traction rope, a 5-maintenance platform, a 6-electric push rod I, a 7-U-shaped connecting plate, an 8-connecting rod, a 9-housing, a 10-ash extraction plate, an 11-pipe rack, a 12-telescopic pipe, a 13-elastic protective cloth, a 20-connecting pipe, a 21-main pipe, a 22-branch pipe, a 23-air outlet pipe, a 101-hexagonal nut I, a 102-roller, a 201-electric push rod II, a 202-hexagonal nut II, a 203-clamping block, a 204-circular ring, a 001-boiler and a 7 a-chute.
Detailed Description
The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings.
Example 1: the maintenance platform for overhauling the boiler furnace is shown in figures 1-12 and comprises a bracket 1, a fixed plate 2, a crane 3, a traction rope 4 and a maintenance platform 5; the bracket 1 is provided with a plurality of driving wheels; the bracket 1 is connected with two fixing plates 2 through bolts; each fixed plate 2 is provided with two cranes 3; each crane 3 is respectively wound with a traction rope 4; all the traction ropes 4 penetrate through the corresponding holes formed in the fixed plate 2 and are hung with a maintenance platform 5;
The cleaning device also comprises an electric push rod I6, a U-shaped connecting plate 7, a connecting rod 8, a hexagonal nut I101, a roller 102 and a cleaning mechanism; the maintenance platform 5 is provided with four electric push rods I6 which are symmetrically distributed; the telescopic part of the first electric push rod 6 at the same side is fixedly connected with a U-shaped connecting plate 7; each U-shaped connecting plate 7 is provided with a connecting rod 8; each connecting rod 8 is hinged with two hexagon nuts 101 which are symmetrically distributed through torsion springs; each hexagonal nut one 101 is provided with a roller 102, the center points of the connecting rod 8, the hexagonal nut one 101 and the roller 102 are consistent, and the diameter of the roller 102 is larger than that of the connecting rod 8; the maintenance platform 5 and the connecting rod 8 are connected with a cleaning mechanism together.
The roller 102 is made of rubber with deformation capability, and the friction between the roller 102 and the inner wall of the boiler 001 is improved, so that the stability of the maintenance platform 5 is improved.
As shown in fig. 10, the diameter of the end of the first hexagonal nut 101 close to the connecting rod 8 is larger than that of the end of the first hexagonal nut 101 far away from the connecting rod 8, and the roller 102 is adapted to wrap the first hexagonal nut 101.
The invention works as follows:
Firstly, connecting a maintenance platform 5 to traction ropes 4, and adjusting the length of each traction rope 4 through a crane 3 to keep the maintenance platform 5 in a horizontal state; then, pushing the bracket 1 and the connecting parts thereof to the area of the boiler 001, so that the maintenance platform 5 is positioned right above the boiler 001 and is opposite to the upper opening of the boiler 001; subsequently, the maintenance personnel carry tools to enter the maintenance platform 5, and then the crane 3 is controlled to release the traction rope 4, so that the maintenance platform 5 enters the interior of the boiler 001 from the upper opening of the boiler 001, and the maintenance personnel can maintain the hearth of the boiler 001 conveniently.
After the maintenance platform 5 drives maintenance personnel to enter the boiler 001, the telescopic part of the first electric push rod 6 is controlled to drive the U-shaped connecting plate 7, the connecting rod 8 and the roller 102 to move towards the inner wall of the boiler 001 until the roller 102 butts against the inner wall of the boiler 001, then, the maintenance platform 5 is controlled to continuously descend to a part to be maintained, in the process, the roller 102 rolls on the inner wall of the boiler 001, basic support is provided for the descending process of the maintenance platform 5 through the roller 102, and the descending process stability and safety of the maintenance platform 5 are ensured.
In the descending process of the maintenance platform 5, dust on the inner wall of the boiler 001 is cleaned by the cleaning mechanism, so that the damaged or rusted part of the inner wall of the boiler 001 is exposed, and the subsequent maintenance work is facilitated.
When the maintenance platform 5 is lowered to the portion to be maintained of the boiler 001, the maintenance platform 5 is controlled to stop lowering, and then a maintenance person walks on the maintenance platform 5 to perform maintenance.
However, when a maintenance person walks on the maintenance platform 5 to perform maintenance, the maintenance platform 5 can shake, the connection between the maintenance platform 5 and the traction ropes 4 is unstable, the connection between the rollers 102 and the inner wall of the boiler 001 is also unstable, when the maintenance platform 5 shakes, the traction ropes 4 can shake, the rollers 102 can roll, the maintenance platform 5 shakes more severely, the stability of the maintenance platform 5 is poor, and normal maintenance work is affected;
Therefore, when the maintenance platform 5 descends to the part to be maintained of the boiler 001, the telescopic part of the first electric push rod 6 is controlled to drive the U-shaped connecting plate 7, the connecting rod 8, the first hexagonal nut 101 and the roller 102 to continue pushing out, so that the roller 102 on the first hexagonal nut 101 can twist by taking the hinge joint of the first hexagonal nut 101 and the connecting rod 8 as an axis under the reaction force of the inner wall of the boiler 001, the roller 102 is not positioned at the same center point with the connecting rod 8, at the moment, the roller 102 and the inner wall of the boiler 001 are in an inclined state, even if the maintenance platform 5 shakes, the roller 102 cannot roll, and the roller 102 tightly props against the inner wall of the boiler 001, so that the supporting capacity of the roller 102 on the maintenance platform 5 is improved, even if a maintenance person walks on the maintenance platform 5 to maintain, the maintenance platform 5 only shakes slightly, the roller 102 cannot roll, and the stability of the maintenance platform 5 is further ensured, and normal maintenance work is prevented from being influenced.
However, after the hexagonal nut 101 and the roller 102 are twisted, the roller 102 is inclined with respect to the inner wall of the boiler 001, so that the contact area between the roller 102 and the inner wall of the boiler 001 is reduced, and the stability provided by the roller 102 is also reduced;
Therefore, the diameter of the hexagonal nut 101 near one end of the connecting rod 8 is larger than that of the hexagonal nut 101 far from one end of the connecting rod 8, and the roller 102 is wrapped on the hexagonal nut 101 in an adaptive manner, so that when the roller 102 is twisted by the pushing force of the electric push rod 6, even if the roller 102 is twisted, the roller 102 is attached to the inner wall of the boiler 001, the contact area between the roller 102 and the inner wall of the boiler 001 is kept unchanged, and the stability provided by the roller 102 is not affected.
After the maintenance work of one area is completed, the telescopic part of the first electric push rod 6 is controlled to drive the U-shaped connecting plate 7 and the connecting component thereof to shrink, so that the roller 102 is restored to the same center point with the connecting rod 8 and the first hexagonal nut 101 under the action of the torsion spring, and the roller 102 can restore the rolling capacity, thereby facilitating the descent or ascent of the auxiliary maintenance platform 5.
Example 2: on the basis of the embodiment 1, as shown in fig. 3-8, the cleaning mechanism comprises an ash extraction plate 10, a pipe rack 11 and a telescopic pipe 12; the connecting rod 8 is arranged as a brush roller; each connecting rod 8 is provided with an ash extraction plate 10; each ash extraction plate 10 is fixedly connected and communicated with two pipe frames 11; each pipe rack 11 is fixedly connected and communicated with one telescopic pipe 12, the telescopic pipe 12 penetrates through the maintenance platform 5, and the telescopic pipe 12 adaptively stretches and contracts along with the movement of the connecting rod 8 and the connecting parts thereof.
The cleaning mechanism also comprises a housing 9; each connecting rod 8 is rotatably connected with a housing 9, the housing 9 is fixedly connected and communicated with an ash extraction plate 10, and the connecting rods 8 are connected with the ash extraction plate 10 through the housings 9; the cover 9 covers the bristles on the connecting rod 8, and the bristles on the connecting rod 8 are in contact with the cover 9.
The cleaning mechanism also comprises an elastic protective cloth 13; each housing 9 is provided with an elastic protective cloth 13, and the elastic protective cloth 13 penetrates through rectangular holes formed in the U-shaped connecting plate 7 and is connected with the maintenance platform 5.
The cleaning mechanism of the invention specifically works as follows:
Connecting the telescopic pipe 12 with a pump arranged outside;
in the existing maintenance mode, before maintenance, dust attached to the hearth needs to be cleaned firstly to expose damaged or rusted parts of the inner wall of the hearth of the boiler 001, however, in the cleaning process, the cleaned dust floats in the inner space of the boiler 001 to interfere the sight of maintenance personnel, and meanwhile, the cleaned dust floats upwards or downwards and is attached to the inner wall of the hearth again to cover the damaged or rusted parts to influence the normal progress of maintenance work;
Therefore, when the roller 102 rolls on the inner wall of the boiler 001, the connecting rod 8 will rotate synchronously with the roller 102, so as to clean dust on the inner wall of the boiler 001, and expose damaged or rusted parts of the inner wall of the boiler 001, so that the subsequent maintenance work is facilitated.
And when connecting rod 8 cleans, control pump machine is through flexible pipe 12, pipe support 11 and ash extraction board 10 to being in the dust of housing 9 cage region suction in proper order, collect the dust, realize the quick clearance of dust, collect, avoid the dust to float in the inner space of boiler 001, cause the interference to maintenance personal's sight, perhaps be attached to furnace inner wall, cover impaired or corrosion position, influence maintenance work's normal progress.
And, when connecting rod 8 rotates the inner wall dust of boiler 001 and cleans, connecting rod 8 can dial the dust upwards, and this in-process covers connecting rod 8 through housing 9, prevents that the dust that connecting rod 8 swept down from rising to, when brush hair on connecting rod 8 and housing 9 contact, housing 9 can scrape down the dust that adheres to on the brush hair, keeps connecting rod 8's cleaning ability, makes connecting rod 8 sustainable stable clean the work.
And, when the telescopic part of electric putter one 6 drives U type connecting plate 7, connecting rod 8 and gyro wheel 102 to the inner wall of boiler 001 and remove, elasticity protection cloth 13 between housing 9 and the maintenance platform 5 can follow the removal of housing 9 and stretch, expand, protect the vacancy department between housing 9 and the maintenance platform 5, avoid the dust that connecting rod 8 swept down to spread from the region that connecting rod 8 is located to raise to the top of maintenance platform 5 from this vacancy department, interfere maintenance personnel's normal maintenance work.
Example 3: on the basis of embodiment 2, as shown in fig. 8-10, the electric push rod further comprises a second electric push rod 201, a second hexagonal nut 202, a clamping block 203 and a circular ring 204; each U-shaped connecting plate 7 is provided with two symmetrically distributed sliding grooves 7a, and the connecting rods 8 are in sliding connection with the U-shaped connecting plates 7 through the sliding grooves 7 a; each U-shaped connecting plate 7 is provided with two electric push rods 201 which are symmetrically distributed; the telescopic part of each second electric push rod 201 is fixedly connected with a circular ring 204 respectively, and all the circular rings 204 on the same U-shaped connecting plate 7 are connected with the connecting rod 8 in a rotating way; each connecting rod 8 is fixedly connected with two hexagon nuts 202 which are symmetrically distributed; each U-shaped connecting plate 7 is fixedly connected with two clamping blocks 203 which are symmetrically distributed, and the clamping blocks 203 are matched with hexagonal nuts 202 on the corresponding sides.
The invention works as follows:
in embodiment 1, even though the roller 102 is pushed by the first electric push rod 6, it will tightly push against the inner wall of the boiler 001, but after the roller 102 is twisted, when it is subjected to external pressing force, a certain degree of deflection will occur, which affects the stability of the maintenance platform 5;
Therefore, in embodiment 1, before the telescopic portion of the first electric push rod 6 is pushed out continuously to twist the first hexagonal nut 101 and the roller 102, the telescopic portion of the second electric push rod 201 is controlled to drive the ring 204 and the connecting rod 8 to slide in the chute 7a towards the maintenance platform 5, so that the second hexagonal nut 202 is clamped into the clamping block 203 to limit the connecting rod 8, at this time, the connecting rod 8, the first hexagonal nut 101 and the roller 102 are not provided with rotation capability any more, and even if the roller 102 is subjected to external pressure, the connecting rod 8 and the first hexagonal nut 101 cannot be driven to deflect, thereby guaranteeing the stability of the maintenance platform 5;
After maintenance is completed, before the maintenance platform 5 is about to descend continuously, the telescopic part of the second electric push rod 201 is controlled to drive the circular ring 204 and the connecting rod 8 to be far away from the maintenance platform 5 in the chute 7a, so that the second hexagonal nut 202 is separated from the clamping block 203, the connecting rod 8 is free from limitation and can rotate along with the rolling of the roller 102 normally, and the inner wall of the boiler 001 is cleaned continuously.
Example 4: on the basis of the embodiment 3, as shown in fig. 3-5, the device also comprises a connecting pipe 20, a main pipe 21, a branch pipe 22 and an air outlet pipe 23; four symmetrically distributed connecting pipes 20 are fixedly connected to the maintenance platform 5, and the telescopic pipes 12 penetrate through the connecting pipes 20 at the corresponding sides; the connecting pipe 20 on the same side is communicated with a main pipe 21; each main pipe 21 is communicated with a plurality of branch pipes 22; all branch pipes 22 are communicated with an air outlet pipe 23; the lower part of the air outlet pipe 23 is provided with a plurality of air outlets.
The outlet duct 23 is located the lower surface middle part of maintenance platform 5, and the gas outlet of the left half portion of outlet duct 23 is towards the left side in maintenance platform 5, and the gas outlet of the right half portion of outlet duct 23 is towards the right side in maintenance platform 5.
The branch pipe 22 is clung to the lower surface of the maintenance platform 5, and the maintenance platform 5 is cooled by the cold air circulated in the branch pipe 22, so that the comfort level of maintenance personnel is improved.
The invention works as follows:
Connecting the cold air conveying device with the connecting pipe 20;
However, before maintenance, the temperature of the boiler 001 is generally reduced, and when the boiler 001 operates, a large amount of residual heat is accumulated in a hearth of the boiler 001, so that the temperature of the boiler needs to be gradually reduced, and the damage of parts in the boiler 001 due to too fast temperature change is avoided, and the normal operation of the boiler 001 is influenced; however, even if the temperature is reduced for a long time, a large amount of waste heat remains in the boiler 001, so that maintenance personnel can wear thick heat insulation protective clothing to maintain, the action is inconvenient, and the working strength is high;
Therefore, when the maintenance platform 5 descends and dust is collected through the dust extraction plate 10, the cold air conveying equipment is controlled to convey cold air into the air outlet pipe 23 sequentially through the connecting pipe 20, the main pipe 21 and the branch pipe 22, and then the cold air is continuously sprayed out through the air outlet of the air outlet pipe 23 to cool the area below the maintenance platform 5 in advance, so that the temperature of the area where the maintenance platform 5 is positioned is suitable, and maintenance staff can carry out maintenance work only by wearing light protective clothing, thereby reducing the working intensity.
In the above cooling process, since the air outlet pipe 23 is located in the middle of the lower surface of the maintenance platform 5, the air outlet of the left half part of the air outlet pipe 23 faces to the left side of the maintenance platform 5, and the air outlet of the right half part of the air outlet pipe 23 faces to the right side of the maintenance platform 5, therefore, the cold air sprayed from the air outlet of the air outlet pipe 23 flows along the bottom of the maintenance platform 5 to the left side and the right side of the maintenance platform 5, in this process, the cold air pushes the hot air in the boiler 001 to flow to the cleaning area where the connecting rod 8, the housing 9 and the ash extraction plate 10 are located, and is sequentially extracted through the ash extraction plate 10, the pipe rack 11 and the telescopic pipe 12, so that the cooling effect is improved by pushing the hot air out through the cold air while cooling through the cold air.
In the above process, the hot air is discharged through the telescopic tube 12, and the hot air flowing in the telescopic tube 12 transfers heat to the cold air flowing in the connecting tube 20 as the telescopic tube 12 passes through the connecting tube 20 at the corresponding side, so that the temperature of the cold air is raised, and the cold air with low temperature is prevented from directly entering the boiler 001, so that the damage of the parts inside the boiler 001 due to the too fast temperature change is prevented, and the normal operation of the boiler 001 is prevented; in addition, as the internal temperature of the boiler 001 gradually decreases, the temperature of the hot air discharged from the telescopic tube 12 also gradually decreases, and the heat of conduction of the hot air in the telescopic tube 12 to the cold air flowing through the connecting tube 20 decreases, so that the temperature of the cold air sprayed from the air outlet of the air outlet tube 23 also gradually decreases, that is, the temperature of the cold air is adjusted adaptively according to the internal temperature of the boiler 001, so that gradual cooling is realized, and the damage of parts inside the boiler due to too fast temperature change is avoided, thereby influencing the normal operation of the boiler 001.
It should be noted that, because the branch pipe 22 is tightly attached to the lower surface of the maintenance platform 5, the maintenance platform 5 is cooled by the cold air flowing through the inside of the branch pipe 22, so that the maintenance platform 5 is always kept in a low-temperature state, and the comfort level of maintenance personnel is improved.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The maintenance platform for overhauling the boiler furnace comprises a bracket (1), a fixed plate (2), a crane (3), a traction rope (4) and a maintenance platform (5); the bracket (1) is fixedly connected with a plurality of fixing plates (2); each fixed plate (2) is provided with a plurality of cranes (3); each crane (3) is respectively wound with a traction rope (4); all the traction ropes (4) penetrate through holes formed in the corresponding fixed plates (2) and are jointly hung with a maintenance platform (5); the cleaning device is characterized by further comprising an electric push rod I (6), a U-shaped connecting plate (7), a connecting rod (8), a hexagonal nut I (101), rollers (102) and a cleaning mechanism; the maintenance platform (5) is provided with a plurality of electric push rods I (6) which are symmetrically distributed; the telescopic part of the first electric push rod (6) at the same side is fixedly connected with a U-shaped connecting plate (7) together; each U-shaped connecting plate (7) is provided with a connecting rod (8); each connecting rod (8) is movably connected with a plurality of hexagon nuts (101) which are symmetrically distributed through torsion springs; each hexagonal nut I (101) is provided with a roller (102), the center points of the connecting rod (8), the hexagonal nut I (101) and the roller (102) are consistent, and the diameter of the roller (102) is larger than that of the connecting rod (8); the maintenance platform (5) and the connecting rod (8) are connected with a cleaning mechanism for cleaning the inner wall of the boiler (001);
The diameter of one end, close to the connecting rod (8), of the hexagonal nut I (101) is larger than that of one end, far away from the connecting rod (8), of the hexagonal nut I (101), and the roller (102) is used for wrapping the hexagonal nut I (101) in an adaptive manner;
the cleaning mechanism comprises an ash extraction plate (10), a pipe rack (11) and a telescopic pipe (12); the connecting rod (8) is arranged as a brush roller; each connecting rod (8) is provided with an ash extraction plate (10); each ash extraction plate (10) is fixedly connected and communicated with a plurality of pipe frames (11); each pipe rack (11) is fixedly connected and communicated with one telescopic pipe (12), and the telescopic pipe (12) penetrates through the maintenance platform (5);
The cleaning mechanism also comprises a housing (9); each connecting rod (8) is rotationally connected with a housing (9), the housing (9) is fixedly connected and communicated with an ash extraction plate (10), and the connecting rods (8) are connected with the ash extraction plate (10) through the housings (9); the cover shell (9) covers the brush hair on the connecting rod (8), and the brush hair on the connecting rod (8) is contacted with the cover shell (9);
The cleaning mechanism also comprises elastic protective cloth (13); each housing (9) is provided with an elastic protective cloth (13), and the elastic protective cloth (13) penetrates through rectangular holes formed in the U-shaped connecting plate (7) to be connected with the maintenance platform (5);
The device also comprises a second electric push rod (201), a second hexagonal nut (202), a clamping block (203) and a circular ring (204); each U-shaped connecting plate (7) is provided with a plurality of symmetrically distributed sliding grooves (7 a), and the connecting rods (8) are in sliding connection with the U-shaped connecting plates (7) through the sliding grooves (7 a); each U-shaped connecting plate (7) is provided with a plurality of electric push rods II (201) which are symmetrically distributed; the telescopic part of each electric push rod II (201) is fixedly connected with a circular ring (204) respectively, and all the circular rings (204) on the same U-shaped connecting plate (7) are connected with the connecting rod (8) in a rotating way; each connecting rod (8) is fixedly connected with a plurality of hexagon nuts (202) which are symmetrically distributed; each U-shaped connecting plate (7) is fixedly connected with a plurality of clamping blocks (203) which are symmetrically distributed, and the clamping blocks (203) are matched with hexagonal nuts (202) on the corresponding sides.
2. The maintenance platform for overhauling a boiler furnace according to claim 1, wherein the rollers (102) are made of rubber material with deformability.
3. The maintenance platform for overhauling a boiler furnace according to claim 1, further comprising a connecting pipe (20), a main pipe (21), a branch pipe (22) and an air outlet pipe (23); the maintenance platform (5) is fixedly connected with a plurality of symmetrically distributed connecting pipes (20), and the telescopic pipes (12) penetrate through the connecting pipes (20) at the corresponding sides; the connecting pipes (20) on the same side are communicated with a main pipe (21); each main pipe (21) is communicated with a plurality of branch pipes (22); all branch pipes (22) are communicated with an air outlet pipe (23); the lower part of the air outlet pipe (23) is provided with a plurality of air outlets.
4. A maintenance platform for overhauling a boiler furnace according to claim 3, characterized in that the air outlet pipe (23) is arranged in the middle of the lower surface of the maintenance platform (5), the air outlet of the left half part of the air outlet pipe (23) faces to the left side of the maintenance platform (5), and the air outlet of the right half part of the air outlet pipe (23) faces to the right side of the maintenance platform (5).
5. A maintenance platform for overhauling a boiler furnace according to claim 3, characterized in that the branch pipes (22) are attached to the lower surface of the maintenance platform (5).
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| CN202410330880.2A CN117923298B (en) | 2024-03-22 | 2024-03-22 | Maintenance platform for overhauling boiler furnace |
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| CN202410330880.2A CN117923298B (en) | 2024-03-22 | 2024-03-22 | Maintenance platform for overhauling boiler furnace |
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| JPH10244234A (en) * | 1997-03-07 | 1998-09-14 | Nikken Lease Kogyo Kk | Washing sediment collection box of high pressure washing apparatus |
| DE202012012582U1 (en) * | 2012-03-08 | 2013-07-19 | Paul Kremser | Snow cleaning device for photovoltaic systems |
| CN106348216A (en) * | 2016-08-31 | 2017-01-25 | 江苏能建机电实业集团有限公司 | Boiler hearth maintenance platform and connection clamping plate at intersection portion of I-beams thereof |
| CN110173705A (en) * | 2019-05-22 | 2019-08-27 | 江苏师范大学 | A kind of inner wall of stack cleaning plant |
| CN116637849A (en) * | 2023-05-29 | 2023-08-25 | 黑龙江烟草工业有限责任公司 | Cleaning device of high-altitude bridge frame equipment |
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2024
- 2024-03-22 CN CN202410330880.2A patent/CN117923298B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10244234A (en) * | 1997-03-07 | 1998-09-14 | Nikken Lease Kogyo Kk | Washing sediment collection box of high pressure washing apparatus |
| DE202012012582U1 (en) * | 2012-03-08 | 2013-07-19 | Paul Kremser | Snow cleaning device for photovoltaic systems |
| CN106348216A (en) * | 2016-08-31 | 2017-01-25 | 江苏能建机电实业集团有限公司 | Boiler hearth maintenance platform and connection clamping plate at intersection portion of I-beams thereof |
| CN110173705A (en) * | 2019-05-22 | 2019-08-27 | 江苏师范大学 | A kind of inner wall of stack cleaning plant |
| CN116637849A (en) * | 2023-05-29 | 2023-08-25 | 黑龙江烟草工业有限责任公司 | Cleaning device of high-altitude bridge frame equipment |
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| CN117923298A (en) | 2024-04-26 |
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