CN111776998B - Maintenance platform and maintenance process for power plant boiler platen superheater - Google Patents
Maintenance platform and maintenance process for power plant boiler platen superheater Download PDFInfo
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- CN111776998B CN111776998B CN202010654229.2A CN202010654229A CN111776998B CN 111776998 B CN111776998 B CN 111776998B CN 202010654229 A CN202010654229 A CN 202010654229A CN 111776998 B CN111776998 B CN 111776998B
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- bearing platform
- power plant
- clamp splice
- platform
- maintenance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
Abstract
The invention relates to an overhaul platform and an overhaul process for a power plant boiler platen superheater, which comprise a bearing platform capable of bearing overhaul personnel, wherein a distribution box is fixedly arranged on the bearing platform, the output of the distribution box is used for connecting an overhaul tool for the overhaul personnel, a counterweight frame is arranged below the bearing platform, at least four hauling ropes are fixedly arranged on the counterweight frame, the four hauling ropes are respectively positioned at four corners of the bearing platform, the hauling ropes are connected between the bearing platform and the counterweight frame, a pulley is arranged on the bearing platform, the hauling ropes are arranged on the pulley in a penetrating manner, and a fixing device for fixing the elongation of the hauling ropes is arranged on the bearing platform. The invention has the effects of firm fixation of the bearing platform and convenient operation of maintainers.
Description
Technical Field
The invention relates to the technical field of maintenance of platen superheaters, in particular to a maintenance platform and a maintenance process of a platen superheater of a power plant boiler.
Background
The platen superheater is also commonly called a semi-radiation superheater and refers to a heating surface which is arranged at the upper part of a hearth or a smoke window at the outlet of the hearth and is used for receiving direct radiation heat in the furnace and absorbing convection heat of smoke. A large distance is kept between two adjacent screens of the screen type superheater, so that the effects of reducing the temperature of the flue gas at the outlet of the hearth and slag condensation can be achieved, and slag bonding on the rear heating surface can be prevented. Meanwhile, the screen type superheater is also a main component of a heating surface of a modern large boiler superheater, the overhaul of the screen type superheater is one of difficulties in the overhaul of the power plant furnace all the time, and the height of the screen type superheater is generally more than 65 meters to 85 meters.
The patent document with the application publication number of CN108788621A discloses a coal-fired power plant boiler platen superheater maintenance process based on a maintenance platform, wherein the maintenance platform is vertically and vertically arranged in a hearth of the boiler through a steel wire rope, the boiler maintenance platform comprises a bearing platform, a guardrail and a magnetic absorber, the bearing platform can bear maintainers and maintenance equipment, the guard bars are arranged around the bearing platform in a hollow way, the magnetic absorber is positioned on the side surface of the bearing platform and can be absorbed on the inner wall of the hearth, a maintainer needs to replace a certain section of screen pipe of the screen superheater when eliminating the defects of the screen superheater, the maintainer utilizes the cutting machine to the screen pipe cuts to utilize the polisher is to two incisions of screen pipe polish.
In the structure, in the process of replacing the screen pipe, the maintenance personnel need to apply pressure to the screen pipe in the horizontal direction, and the magnetic adsorber is insecure to fix the bearing platform to influence the operation of the maintenance personnel.
Disclosure of Invention
The invention aims to provide an overhauling platform of a platen superheater of a power plant boiler, which has the effects of firmly fixing a bearing platform and facilitating the operation of an overhauling worker.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a power boiler platen superheater's of power plant maintenance platform, is including the load-bearing platform that can bear the maintainer, the last fixed block terminal that is provided with of load-bearing platform, the output of block terminal are used for connecting the maintainer with the maintenance instrument, load-bearing platform's below is provided with the counter weight frame, be fixed with four at least haulage ropes on the counter weight frame, four the haulage rope is located the position at four angles of load-bearing platform respectively, and the haulage rope is connected between load-bearing platform and counter weight frame, the last pulley that is provided with of load-bearing platform, the haulage rope is worn to establish on the pulley, the last fixing device who is used for fixed haulage rope elongation that is provided with of load-bearing platform.
Through adopting above-mentioned technical scheme, during the use, at the in-process of load-bearing platform rebound, the length extension of four haulage ropes that are located load-bearing platform to the counter weight frame that is located load-bearing platform's below is connected on the haulage rope, when the maintainer uses the maintenance instrument on load-bearing platform, fix the length of haulage rope through fixing device earlier, thereby load-bearing platform receives the power of horizontal direction during, because the counter weight frame is drawing load-bearing platform, thereby make load-bearing platform fixed, make things convenient for the maintainer to operate.
The invention is further configured to: fixing device includes middle piece, first clamp splice and second clamp splice, and first clamp splice and second clamp splice are located the both sides of middle piece respectively to interval setting between first clamp splice, second clamp splice and the middle piece, be used for passing the haulage rope both ends of connecting on the pulley between first clamp splice, second clamp splice and the middle piece, the fixed guide arm that is provided with on the first clamp splice, guide arm one end is fixed on first clamp splice, and middle piece and second clamp splice are passed to the other end, the one end that first clamp splice was kept away from to the guide arm is provided with the clamping piece.
Through adopting above-mentioned technical scheme, place the both ends of haulage rope between middle piece and first clamp splice, the second clamp splice, when the clamping piece reduces the distance between first clamp splice and the second clamp splice, first clamp splice and second clamp splice clamp are tight to the middle piece to make the length of haulage rope fixed.
The invention is further configured to: the clamping piece is an eccentric wheel, the eccentric wheel is rotatably connected to the guide rod, the length direction of the guide rod is perpendicular to the rotating axis of the eccentric wheel, the profile surface of the eccentric wheel abuts against the second clamping block, and a handle is arranged on the eccentric wheel.
Through adopting above-mentioned technical scheme, the eccentric wheel rotates to be connected on the guide arm, and when the eccentric wheel rotated, the eccentric wheel supported on the second clamp splice, when the farthest point of eccentric wheel supported on the second clamp splice, the distance between first clamp splice and the second clamp splice was minimum to press from both sides the haulage rope tightly between first clamp splice, intermediate block and second clamp splice.
The invention is further configured to: the guide rods are sleeved with springs, at least two springs are arranged on each guide rod, and the two springs are respectively located between the middle block and the first clamping block and between the middle block and the second clamping block.
Through adopting above-mentioned technical scheme, be provided with the spring between middle piece and first clamp splice, the second clamp splice, when the release of eccentric wheel to first clamp splice, second clamp splice, the effort of spring orders about first clamp splice and second clamp splice and keeps away from, makes things convenient for the extension of haulage rope.
The invention is further configured to: the counterweight frame is provided with four winches, and four winches correspond with four haulage ropes respectively, and every capstan winch is used for twining a haulage rope, four be connected with winding device on the capstan winch.
Through adopting above-mentioned technical scheme, set up four capstans that are used for twining the haulage rope on the counter weight frame, when needs are accomodate the haulage rope, rotate four capstans through winding device to make things convenient for accomodating of haulage rope to arrange in order.
The invention is further configured to: the winding device comprises two rotating shafts which are arranged in parallel, two coaxial winches are fixedly arranged on each rotating shaft, and the rotating shafts are connected with driving motors.
Through adopting above-mentioned technical scheme, driving motor during operation, driving motor drive pivot rotates, and the pivot drives coaxial two capstans that are provided with and rotates simultaneously, can make the rotation of capstan winch go on in step to the length of accomodating the haulage rope also equals.
The invention is further configured to: the output end of the driving motor is fixedly provided with a worm, the end part of each rotating shaft is provided with a worm wheel, the worm wheels are meshed with the worm, the two worm wheels are connected to the worm in a coaxial and fixed mode, and a one-way bearing is arranged between each worm wheel and the corresponding rotating shaft.
Through adopting above-mentioned technical scheme, be provided with one-way bearing between worm wheel and pivot, when driving motor during operation, driving motor accessible worm drives the worm wheel, and the worm wheel drives the pivot through one-way bearing's locking state and rotates, and on the contrary, when the haulage rope is pulling the pivot and is rotating, worm and worm wheel all need not rotate.
The invention is further configured to: the lower bottom surface of counter weight frame is provided with normally open switch, and normally open switch connects on the electric wire of block terminal input, normally open switch is when counter weight frame is placed subaerial, and normally open switch is closed.
Through adopting above-mentioned technical scheme, set up normally disconnected switch in the lower bottom surface of counter weight frame, when using the maintenance instrument on the block terminal, if the atress of counter weight frame is too big, when the lower bottom surface of counter weight frame breaks away from subaerial, normally disconnected switch disconnection to in time cut off the electric power of overhauing the instrument, make the maintenance instrument stop work.
The invention aims to provide a maintenance process of a platen superheater of a power plant boiler, which has the effects of firmer fixation of a bearing platform and convenience for operation of maintenance personnel.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a power plant's boiler platen superheater's maintenance technology, bearing platform upwards removes in power plant's boiler, and the length that the haulage rope is connected between counter weight frame and bearing platform increases along with bearing platform's upwards removal, when bearing platform reachs the position that needs disappear, fixes the length of haulage rope through fixing device, then the maintainer reuses the maintenance instrument and operates.
Through adopting above-mentioned technical scheme, at the in-process with load-bearing platform rebound, the length extension of haulage rope, when load-bearing platform reachd the position of disappearance, fixing device is with the fixed back of length of haulage rope, and the haulage rope can be connected load-bearing platform and counter weight frame, and the maintainer reuses the maintenance instrument to it is more convenient to make the maintainer operate the maintenance instrument when using.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the maintenance tool is used on the bearing platform by a maintainer, the lengths of the traction ropes are fixed through the fixing device, so that when the bearing platform is stressed by a force in the horizontal direction, the bearing platform is fixed due to the fact that the counterweight frame pulls the bearing platform, and the maintenance personnel can conveniently operate;
2. the unidirectional bearing is arranged between the worm wheel and the rotating shaft, when the driving motor works, the driving motor can drive the worm wheel through the worm, and the worm wheel drives the rotating shaft to rotate through the locking state of the unidirectional bearing;
3. through the in-process with load-bearing platform rebound, the length extension of haulage rope, when load-bearing platform reachd the position of disappearance, fixing device is with the fixed back of length of haulage rope, and the haulage rope can be connected load-bearing platform and counter weight frame, and the maintainer reuses the maintenance instrument to it is more convenient that the operation is more when can making the maintainer use the maintenance instrument.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;
FIG. 3 is an enlarged partial schematic view of portion B of FIG. 1;
fig. 4 is an installation schematic of a normally-off switch.
In the figure, 1, a bearing platform; 11. a guardrail; 12. a wire rope; 13. a distribution box; 2. a counterweight frame; 3. a balancing weight; 4. a hauling rope; 5. a winch; 6. a winding device; 61. a rotating shaft; 62. a worm gear; 63. a one-way bearing; 64. a worm; 65. a drive motor; 7. a pulley; 8. a fixing device; 81. a middle block; 82. a first clamping block; 83. a second clamp block; 84. a guide bar; 85. an eccentric wheel; 86. positioning the surface; 87. a handle; 88. a spring; 89. a counter bore; 9. the switch is normally off.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows: referring to fig. 1, the maintenance platform for the platen superheater of the power plant boiler disclosed by the invention comprises a bearing platform 1, wherein a guardrail 11 is arranged on the bearing platform 1, the upper surface of the bearing platform 1 is used for standing maintenance personnel, and maintenance tools needed by the maintenance personnel are also placed on the bearing platform 1, such as a cutting machine and a grinding machine. Traction devices are arranged at two ends of the bearing platform 1, a steel wire rope 12 is connected to the power plant boiler through the traction devices, and the upper end of the steel wire rope 12 is fixed to the power plant boiler, so that the bearing platform 1 can move up and down under the action of the traction devices. A distribution box 13 is fixedly arranged on the bearing platform 1, and the output of the distribution box 13 is used for providing electric power for the maintenance tool.
Referring to fig. 1, a counterweight frame 2 is disposed below a bearing platform 1, a counterweight block 3 is disposed in the counterweight frame 2, four traction ropes 4 are disposed on the counterweight frame 2, and the four traction ropes 4 are respectively located at four corners of the bearing platform 1. Four winches 5 are arranged on the counterweight frame 2, each winch 5 corresponds to one traction rope 4, every two winches 5 are divided into one group, the central lines of the two winches 5 in the group are collinear, a winding device 6 is arranged on the counterweight frame 2 and is connected with the winches 5 through the winding device 6, and the winches 5 can wind the traction ropes 4 on the winches 5. Be provided with pulley 7 on load-bearing platform 1, pulley 7 rotates to be connected on load-bearing platform 1, and the one end that 5 capstan winch were kept away from to the one end of haulage rope 4 is fixed on counter weight frame 2, strides the middle part of haulage rope 4 on pulley 7, makes haulage rope 4 connect in pulley 7, at the in-process with load-bearing platform 1 rebound, pulley 7 along with load-bearing platform 1 rebound, makes haulage rope 4 pay off from capstan winch 5 to the length extension of haulage rope 4 between load-bearing platform 1 and counter weight frame 2. Be provided with the fixing device 8 of fixed haulage rope 4 on load-bearing platform 1, when load-bearing platform 1 reachs the position that the maintainer need disappear the defect, it is fixed with haulage rope 4 through fixing device 8, make the length of haulage rope 4 between load-bearing platform 1 and the counter weight frame 2 fixed to when the maintainer operation maintenance instrument, fix load-bearing platform 1 by counter weight frame 2, prevent that load-bearing platform 1 from removing, influence the maintainer operation.
Referring to fig. 1 and 2, the winding device 6 includes two rotating shafts 61, the two rotating shafts 61 are arranged in parallel, each rotating shaft 61 is connected with two pulleys 7 in one group and coaxially fixed with the pulleys 7, a worm wheel 62 is arranged at the end of each rotating shaft 61, a one-way bearing 63 is arranged between the worm wheel 62 and the rotating shaft 61, when the worm wheel 62 drives the rotating shaft 61 to rotate, the one-way bearing 63 is in a locked state with an inner ring and an outer ring, and simultaneously the winch 5 winds the traction rope 4, when the worm wheel 62 is not rotated, the inner ring and the outer ring of the one-way bearing 63 are in a relative rotation state, so that the traction rope 4 can be paid out from the winch 5; the two worm wheels 62 are respectively provided with a worm 64, the two worm 64 are coaxially and fixedly arranged, the end part of the worm 64 is connected with a driving motor 65, the driving motor 65 is fixed on the counterweight frame 2, the output end of the driving motor 65 is coaxially fixed on the worm 64, and when the driving motor 65 works, the driving motor 65 can drive the worm wheels 62 to rotate to complete the winding of the traction rope 4 on the winch 5.
Referring to fig. 3, the fixing device 8 includes a middle block 81, a first clamping block 82 and a second clamping block 83, the middle block 81 is fixed on the bearing platform 1, the first clamping block 82 and the second clamping block 83 are respectively located at two sides of the middle block 81, a gap is left between the middle block 81 and the first clamping block 82 and the second clamping block 83, the fixing device 8 is located right below the pulley 7, two ends of a traction rope 4 connected to the pulley 7 respectively pass through the gap between the middle block 81 and the first clamping block 82, the second clamping block 83, the first clamping block 82 is provided with two guide rods 84, the length direction of the guide rods 84 points to the second clamping block 83, the guide rods 84 pass through the middle block 81 to enable the second clamping block 83 to be slidably connected to the second clamping block 83, one end of the guide rods 84 far away from the first clamping block 82 is provided with an eccentric 85, the eccentric 85 is rotatably connected to the two guide rods 84, and the rotation axis of the eccentric 85 is perpendicular to the length direction of the guide rods 84, the profile of the eccentric 85 is brought to bear against the second clamping block 83, and during the rotation of the eccentric 85, the eccentric 85 can approach against the second clamping block 83 in the direction of the first clamping block 82, so that the distance between the first clamping block 82 and the second clamping block 83 is reduced, so that the traction rope 4 located between the first clamping block 82 and the second clamping block 83 is clamped between the intermediate block 81 and the first clamping block 82, the second clamping block 83. A handle 87 is arranged on the eccentric wheel 85, so that a maintainer can conveniently operate the eccentric wheel 85 to rotate the eccentric wheel 85, and a positioning surface 86 is arranged at the farthest point of the eccentric wheel 85, so that when the positioning surface 86 of the eccentric wheel 85 is attached to the second clamping block 83, the eccentric wheel 85 can be positioned at the position for clamping the first clamping block 82 and the second clamping block 83.
Referring to fig. 3, in order to facilitate the opening of the middle block 81, the first clamping block 82 and the second clamping block 83, springs 88 are arranged between the first clamping block 82, the second clamping block 83 and the middle block 81, so that two springs 88 are arranged on each guide rod 84, when the eccentric 85 is rotated to the nearest point of the eccentric 85 to abut against the second clamping block 83, the springs 88 push the first clamping block 82 and the second clamping block 83 away from the middle block 81, and the first clamping block 82 and the second clamping block 83 release the traction rope 4, so that the first clamping block 82 and the second clamping block 83 are prevented from influencing the extension of the traction rope 4. Counter bores 89 are formed in the positions, where the first clamping block 82, the middle block 81 and the second clamping block 83 are in contact with the spring 88, of the first clamping block 82, the middle block 81 and the second clamping block 83, the end portions of the spring 88 abut against the counter bores 89, when the first clamping block 82, the middle block 81 and the second clamping block 83 are in a clamping state, the spring 88 can be located in the counter bores 89, and the fact that the shortest length of the spring 88 affects the fact that the first clamping block 82, the middle block 81 and the second clamping block 83 clamp the traction rope 4 is avoided.
Referring to fig. 4, the lower bottom surface of counterweight frame 2 is provided with normally-off switch 9, and normally-off switch 9 is connected on the electric wire of block terminal 13 input, and normally-off switch 9 is placed subaerial at counterweight frame 2, and normally-off switch 9 is closed, and when counterweight frame 2's lower bottom surface deviates from subaerial, normally-off switch 9 breaks off to can make block terminal 13 outage, make maintenance tool stop work, avoid maintenance tool's operating condition uncontrolled.
Example two: the invention discloses a maintenance process of a platen superheater of a power plant boiler, which adopts a maintenance platform of the platen superheater of the power plant boiler disclosed in the first embodiment of the invention, wherein a bearing platform 1 is firstly placed in the power plant boiler, a counterweight frame 2 is placed below the bearing platform 1 after the bearing platform 1 is lifted upwards, and when the bearing platform 1 is positioned in the power plant boiler and moves upwards, the length of a traction rope 4 connected between the counterweight frame 2 and the bearing platform 1 is increased along with the upward movement of the bearing platform 1; when the bearing platform 1 reaches the position needing to be eliminated, the first clamping block 82, the middle block 81 and the second clamping block 83 clamp the traction rope 4 by rotating the eccentric wheel 85, so that the length of the traction rope 4 is fixed, and then a maintainer uses a maintenance tool to operate.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a power plant's boiler platen superheater's maintenance platform, is including bearing platform (1) that can bear the maintainer, bearing platform (1) is gone up the fixed block terminal (13) that is provided with, and the output of block terminal (13) is used for connecting the maintenance instrument for the maintainer, its characterized in that: a counterweight frame (2) is arranged below the bearing platform (1), at least four traction ropes (4) are fixed on the counterweight frame (2), the four traction ropes (4) are respectively positioned at four corners of the bearing platform (1), the traction ropes (4) are connected between the bearing platform (1) and the counterweight frame (2), a pulley (7) is arranged on the bearing platform (1), the traction ropes (4) are arranged on the pulley (7) in a penetrating manner, and a fixing device (8) for fixing the extension amount of the traction ropes (4) is arranged on the bearing platform (1); traction devices are arranged at two ends of the bearing platform (1), a steel wire rope (12) is connected in the power plant boiler through the traction devices, the upper end of the steel wire rope (12) is fixed on the power plant boiler, and the bearing platform (1) can move up and down under the action of the traction devices; fixing device (8) are including middle piece (81), first clamp splice (82) and second clamp splice (83), and first clamp splice (82) and second clamp splice (83) are located the both sides of middle piece (81) respectively to interval setting between first clamp splice (82), second clamp splice (83) and middle piece (81), be used for between first clamp splice (82), second clamp splice (83) and middle piece (81) to pass haulage rope (4) both ends of connecting on pulley (7), fixed guide arm (84) that are provided with on first clamp splice (82), guide arm (84) one end is fixed on first clamp splice (82), and the other end passes middle piece (81) and second clamp splice (83), the one end that first clamp splice (82) was kept away from in guide arm (84) is provided with the clamping piece.
2. The power plant boiler platen superheater maintenance platform of claim 1, wherein: the clamping piece is an eccentric wheel (85), the eccentric wheel (85) is rotatably connected to the guide rod (84), the length direction of the guide rod (84) is perpendicular to the rotating axis of the eccentric wheel (85), the profile surface of the eccentric wheel (85) abuts against the second clamping block (83), and a handle (87) is arranged on the eccentric wheel (85).
3. The power plant boiler platen superheater access platform of claim 1 or 2, wherein: the guide rods (84) are sleeved with springs (88), each guide rod (84) is at least provided with two springs (88), and the two springs (88) are respectively positioned between the middle block (81) and the first clamping block (82) and between the middle block and the second clamping block (83).
4. The power plant boiler platen superheater maintenance platform of claim 1, wherein: the counterweight frame (2) is provided with four winches (5), the four winches (5) correspond to the four hauling ropes (4) respectively, each winch (5) is used for winding one hauling rope (4), and the four winches (5) are connected with a winding device (6).
5. The power plant boiler platen superheater maintenance platform according to claim 4, wherein: the winding device (6) comprises two rotating shafts (61) which are arranged in parallel, two coaxial winches (5) are fixedly arranged on each rotating shaft (61), and the rotating shafts (61) are connected with driving motors (65).
6. The power plant boiler platen superheater maintenance platform of claim 5, wherein: the output end of the driving motor (65) is fixedly provided with a worm (64), the end part of each rotating shaft (61) is provided with a worm wheel (62), the worm wheels (62) are meshed with the worm (64), the two worm wheels (62) are connected to the worm (64) in a coaxial and fixed mode, and a one-way bearing (63) is arranged between the worm wheels (62) and the rotating shaft (61).
7. The power plant boiler platen superheater maintenance platform of claim 1, wherein: the lower bottom surface of counter weight frame (2) is provided with normally open switch (9), and normally open switch (9) are connected on the electric wire of block terminal (13) input, when normally open switch (9) are placed on subaerial in counter weight frame (2), normally open switch (9) are closed.
8. The utility model provides a power plant's boiler platen superheater's maintenance technology which characterized in that: the power plant boiler platen superheater overhaul platform as claimed in claim 1, wherein the bearing platform (1) moves upwards in the power plant boiler, the length of the traction rope (4) connected between the counterweight frame (2) and the bearing platform (1) increases along with the upward movement of the bearing platform (1), when the bearing platform (1) reaches a position to be eliminated, the length of the traction rope (4) is fixed through the fixing device (8), and then an overhaul tool is used by an overhaul worker for operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654229.2A CN111776998B (en) | 2020-07-09 | 2020-07-09 | Maintenance platform and maintenance process for power plant boiler platen superheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654229.2A CN111776998B (en) | 2020-07-09 | 2020-07-09 | Maintenance platform and maintenance process for power plant boiler platen superheater |
Publications (2)
| Publication Number | Publication Date |
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| CN111776998A CN111776998A (en) | 2020-10-16 |
| CN111776998B true CN111776998B (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010654229.2A Active CN111776998B (en) | 2020-07-09 | 2020-07-09 | Maintenance platform and maintenance process for power plant boiler platen superheater |
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| CN113175197B (en) * | 2021-04-19 | 2022-12-23 | 安徽沃恒建设工程项目管理有限公司 | Intelligent auxiliary assembly for avoiding deflection and inclination of hanging basket for building construction |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2628041C3 (en) * | 1976-06-23 | 1979-09-20 | Kombi-Lift Montage- Und Handelsgesellschaft Mbh, 5650 Solingen | Facade cable elevator |
| CN2033813U (en) * | 1988-07-09 | 1989-03-08 | 杨静文 | Slip-tightening tongs for hoisting and pulling |
| KR200221450Y1 (en) * | 2000-10-21 | 2001-04-16 | 편준기 | Brake system for rope of a elevator |
| CN1906111A (en) * | 2005-01-20 | 2007-01-31 | 起产情报System（株） | Rope brake system of elevator by using cam |
| CN102633177B (en) * | 2012-04-17 | 2014-04-16 | 蒂森克虏伯电梯（上海）有限公司 | Rope-clamping device for installing steel wire rope of elevator |
| CN104816999B (en) * | 2015-05-12 | 2017-01-18 | 锦州市特种设备监督检验所 | Rapid rope disassembly and assembly device for elevator speed governor |
| CN108788621A (en) * | 2018-06-26 | 2018-11-13 | 珠海市蓝海工业技术有限公司 | A kind of maintenance craft of the coal-fired plant boiler pendant superheater based on inspection platform |
| CN110451440A (en) * | 2019-09-18 | 2019-11-15 | 浙江建设职业技术学院 | Elevator is used in a kind of construction of interior architecture |
| CN110756448A (en) * | 2019-11-29 | 2020-02-07 | 安徽华源物流有限责任公司 | Logistics piece sorting equipment for logistics |
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Address after: Floor 1-7, block B, building 6, innovation park, Henan National University Science and Technology Park (East District), 289 West Third Ring Road, high tech Industrial Development Zone, Zhengzhou City, Henan Province, 450000 Patentee after: Huaxin holding (Henan) Co.,Ltd. Address before: Floor 1-7, block B, building 6, innovation park, Henan National University Science and Technology Park (East District), 289 West Third Ring Road, high tech Industrial Development Zone, Zhengzhou City, Henan Province, 450000 Patentee before: Henan China Power Investment Huaxin Power Engineering Co.,Ltd. |