CN218145317U - Combined lifting appliance for lifting flexible tube panel of boiler - Google Patents
Combined lifting appliance for lifting flexible tube panel of boiler Download PDFInfo
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- CN218145317U CN218145317U CN202222020778.1U CN202222020778U CN218145317U CN 218145317 U CN218145317 U CN 218145317U CN 202222020778 U CN202222020778 U CN 202222020778U CN 218145317 U CN218145317 U CN 218145317U
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- cross arm
- lifting
- jackscrew
- pin shaft
- flexible tube
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Abstract
The invention discloses a combined lifting appliance for lifting a boiler flexible tube panel, which solves the problems of how to improve the bearing performance and stability of the installation of a lifting lug for lifting the flexible tube panel; a rectangular horizontal base plate (1) and a group of vertical plates (3) form a T-shaped hanger frame, each vertical plate of the group of vertical plates (3) is provided with a horizontal cross arm pin shaft cross through hole (4), a horizontal cross arm pin shaft (6) is connected in the horizontal cross arm pin shaft cross through hole (4), a right side supporting sleeve (9) is arranged on the horizontal cross arm pin shaft (6) on the right side of the group of vertical plates (3), a right annular groove (10) is arranged on the outer circle side surface of the right side supporting sleeve (9), and a left side supporting sleeve (11) is arranged on the horizontal cross arm pin shaft (6) on the left side of the group of vertical plates (3); the defect that the flexible tube panel is easy to deform in hoisting is well overcome.
Description
Technical Field
The invention relates to a method for hoisting a boiler inner tube panel of a thermal power plant, in particular to a method for installing a flexible tube panel hoisting lug of a boiler with good bearing capacity and high stability and a combined hoisting tool thereof.
Background
In the installation of a boiler in a thermal power plant, some tube panels needing to be installed in the boiler are flexible tube panels, the flexible tube panels are formed by sealing and connecting circular tubes, the area of each flexible tube panel is large, the weight of each flexible tube panel generally reaches dozens of tons, and lifting lugs at lifting points and installation of the lifting lugs play an important role in lifting safety balance in the lifting installation; the lifting lug is arranged on the flexible tube panel, is a stressed member connected with the flexible tube panel, is used as a main lifting point structure for lifting, and has good bearing capacity and certain stability; the flexible tube panel has the flexibility characteristic, so that the difficulty in mounting a lifting point and balancing stress in the lifting process is caused, and if the lifting lug is not properly mounted, the flexible tube panel is easily deformed in the lifting process, and the smooth lifting and mounting of the flexible tube panel are directly influenced; in addition, the bearing capacity of the lifting lug is related to the safety of the lifting process, and if the bearing capacity is in problem, the lifting falling accident is easy to happen, so that casualties and property loss are caused.
Disclosure of Invention
The invention provides a method for connecting a hoisting hanger of a boiler flexible tube panel, which has good bearing capacity and high stability, and solves the technical problem of how to improve the bearing capacity and the stability of the installation of a hoisting hanger of the flexible tube panel.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: construct "T" font hoist bed frame, with the lower extreme riser of "T" font hoist bed frame, along from last downward direction, peg graft and pass the hole of offering on the connecting plate between the two adjacent pipes of flexible tube screen, cross-under horizontal cross arm round pin axle in the horizontal cross arm round pin axle cross-under through-hole of the riser of "T" font hoist bed frame of pegging graft below the flexible tube screen, fix the flexible tube screen at shoulder arm formula cross arm round pin epaxial, improved the stability of hoisting point department promptly, improved the bearing capacity of hoist again.
The utility model provides a combination hoist that hoist and mount boiler flexible tube panel was used, including rectangle horizontal base plate, top face central authorities at rectangle horizontal base plate, be provided with the lug, lower bottom surface central authorities at rectangle horizontal base plate, be provided with a set of vertical riser parallel to each other at equidistant, rectangle horizontal base plate and a set of vertical riser constitution "T" font hoist frame, on every vertical riser of a set of vertical riser, all be provided with horizontal cross arm round pin axle cross-under through-hole, in horizontal cross arm round pin axle cross-under through-hole, cross-under horizontal cross arm round pin axle, on the horizontal cross arm round pin axle on a set of vertical riser right side, be provided with right side supporting sleeve, be provided with right annular groove on right side supporting sleeve's excircle side, on the left horizontal cross arm round pin axle of a set of vertical riser, be provided with left side supporting sleeve, on left side supporting sleeve's excircle side, be provided with left annular groove.
The right end of the horizontal cross arm pin shaft is fixedly provided with a pin shaft cap, the left end of the horizontal cross arm pin shaft is provided with an external thread, and a left end nut of the pin shaft is screwed on the external thread arranged at the left end of the horizontal cross arm pin shaft.
A left side jackscrew bolt connection through hole is formed in the rectangular horizontal base plate on the left side of the lifting lug, and a right side jackscrew bolt connection through hole is formed in the rectangular horizontal base plate on the right side of the lifting lug; the left jackscrew is in threaded connection with the left jackscrew in the left jackscrew threaded through hole, the lower end of the left jackscrew is connected with a left pressing block, the right jackscrew is in threaded connection with the right jackscrew in the right jackscrew threaded through hole, the lower end of the right jackscrew is connected with a right pressing block, a right locking nut is arranged between the right jackscrew and the upper top surface of the rectangular horizontal substrate, and a left locking nut is arranged between the left jackscrew and the upper top surface of the rectangular horizontal substrate; the central axis of the lifting hole on the lifting lug is mutually vertical to the central axis of the horizontal cross arm pin shaft cross-connecting through hole.
A hoisting hanger connecting method of a boiler flexible tube panel with good bearing performance and high stability comprises a T-shaped hanger frame and the boiler flexible tube panel, wherein round tubes are arranged on the boiler flexible tube panel at intervals in parallel, and a connecting plate is arranged between every two adjacent round tubes; the method is characterized by comprising the following steps:
first step, according to the shape of the circular pipe that the interval set up on the flexible pipe screen of boiler side by side to and the interval between the two adjacent circular pipes, make "T" font hoist frame, specific process is: a lifting lug is arranged at the center of the top end surface of the rectangular horizontal base plate, a group of vertical plates are arranged in parallel at equal intervals at the center of the lower bottom surface of the rectangular horizontal base plate, each group of vertical plates is composed of four vertical plates, and the thickness of each vertical plate is smaller than the width of a connecting plate arranged between two adjacent circular tubes on a boiler flexible tube panel; each vertical plate is provided with a horizontal cross arm pin shaft cross-connecting through hole, a right supporting sleeve is manufactured, a right annular groove is formed in the outer circle side face of the right supporting sleeve, the diameter of the right annular groove is equal to the outer diameter of each circular pipe, 2 times of the distance between every two adjacent right annular grooves is equal to the distance between every two adjacent circular pipes, and the left supporting sleeve is manufactured by the same method;
secondly, correspondingly arranging four through holes of a group of vertical plates on a flexible tube panel of the boiler, wherein the through holes are arranged on a connecting plate;
thirdly, penetrating a group of vertical plates on the T-shaped hanger frame manufactured in the first step through four through holes formed in the boiler flexible tube panel above the boiler flexible tube panel along the direction from top to bottom, and enabling the horizontal cross arm pin shaft through holes to be arranged below the boiler flexible tube panel in a penetrating manner;
fourthly, the horizontal cross arm pin shaft is connected into a horizontal cross arm pin shaft connecting through hole on a group of vertical plates in a penetrating manner, the left side supporting sleeve is sleeved on the horizontal cross arm pin shaft on the left side of the group of vertical plates, and the right side supporting sleeve is sleeved on the horizontal cross arm pin shaft on the right side of the group of vertical plates; screwing a left end nut of the pin shaft at the left end of the horizontal cross arm pin shaft, and fixedly clamping the left side supporting sleeve and the right side supporting sleeve on two sides of a group of vertical plates;
and fifthly, enabling the flexible tube panel of the boiler to fall and be lapped on the left supporting sleeve and the right supporting sleeve, and enabling the lower arc-shaped surface of the circular tube to be embedded into the annular groove on the supporting sleeve.
And the left pressing block and the right pressing block are abutted on the upper top surface of the flexible tube panel of the boiler by rotating the left jackscrew and the right jackscrew.
The invention combines the fixing functions of the lifting point, the support and the lifted plate in the combined lifting appliance, is particularly suitable for stably lifting large-area flexible tube panels, has high bearing performance and good stability at the lifting point of the lifting appliance, and well overcomes the defect of easy deformation in the lifting of the flexible tube panels.
Drawings
Figure 1 is a schematic structural view of a modular spreader of the present invention;
fig. 2 is a schematic view of the construction of the modular spreader of the present invention in a left-hand direction;
FIG. 3 isbase:Sub>A sectional view taken along line A-A in FIG. 2;
FIG. 4 is a schematic structural view of a "T" shaped spreader frame of the present invention;
FIG. 5 is a combined drawing of the combined lifting appliance and the boiler flexible tube panel 21;
fig. 6 is a schematic view of a multi-point hoisting structure for the boiler flexible tube panel 21.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a combined lifting appliance for lifting a boiler flexible tube panel comprises a rectangular horizontal base plate 1, a lifting lug 2 is arranged at the center of the top end face of the rectangular horizontal base plate 1, a group of vertical plates 3 are arranged in parallel at equal intervals at the center of the lower bottom face of the rectangular horizontal base plate 1, the rectangular horizontal base plate 1 and the group of vertical plates 3 form a T-shaped lifting appliance frame, a horizontal cross arm pin shaft penetrating through hole 4 is formed in each vertical plate of the group of vertical plates 3, the group of vertical plates 3 are four vertical plates arranged in parallel, the horizontal cross arm pin shaft penetrating through holes 4 in each vertical plate are overlapped, a horizontal cross arm pin shaft 6 penetrates through the horizontal cross arm pin shaft penetrating through holes 4, a right side supporting sleeve 9 is arranged on the horizontal cross arm pin shaft 6 on the right side of the group of vertical plates 3, a right annular groove 10 is arranged on the outer circle side face of the right side supporting sleeve 9, a left side supporting sleeve 11 is arranged on the horizontal cross arm pin shaft 6 on the left side of the group of vertical plates 3, and an outer circle of the left side supporting sleeve 11 is arranged on the outer circle; the horizontal cross arm pin shaft 6 is like a carrying pole, the middle part of the carrying pole is connected with a T-shaped hanger frame, and the left side and the right side of the carrying pole provide support for a lifted boiler flexible pipe panel 21.
A pin shaft cap 7 is fixedly arranged at the right end of the horizontal cross arm pin shaft 6, an external thread is arranged at the left end of the horizontal cross arm pin shaft 6, and a pin shaft left end nut 8 is in threaded connection with the external thread arranged at the left end of the horizontal cross arm pin shaft 6; through rotatory round pin axle left end nut 8, make right side supporting sleeve 9 blocked joint clamp between a set of vertical riser 3 and round pin axle cap 7, make left side supporting sleeve 11 blocked joint clamp between a set of vertical riser 3 and round pin axle left end nut 8, provide stable support for boiler flexible tube panel 21.
A left jackscrew bolt-joint through hole 14 is formed in the rectangular horizontal base plate 1 on the left side of the lifting lug 2, and a right jackscrew bolt-joint through hole 13 is formed in the rectangular horizontal base plate 1 on the right side of the lifting lug 2; a left jackscrew 17 is screwed in the left jackscrew screwing through hole 14, a left pressing block 18 is connected to the lower end of the left jackscrew 17, a right jackscrew 15 is screwed in the right jackscrew screwing through hole 13, a right pressing block 16 is connected to the lower end of the right jackscrew 15, a right locking nut 19 is arranged between the right jackscrew 15 and the upper top surface of the rectangular horizontal substrate 1, a left locking nut 20 is arranged between the left jackscrew 17 and the upper top surface of the rectangular horizontal substrate 1, and after the boiler flexible tube panel 21 is combined with the combined hanger, the left pressing block 18 and the right pressing block 16 are pressed on the top surface of the boiler flexible tube panel 21 by rotating the right jackscrew 15 and the left jackscrew 17, the two pressing blocks and the annular grooves arranged on the outer circle side surfaces of the two supporting sleeves form limitation on the boiler flexible tube panel 21 together, so that the combined hanger is stably combined with the boiler flexible tube panel 21; the central axis of the lifting hole 5 on the lifting lug 2 and the central axis of the horizontal cross arm pin shaft cross-connecting through hole 4 are mutually vertical to ensure the stability and safety of lifting.
A hoisting sling connecting method of a boiler flexible tube panel with good bearing capacity and high stability comprises a T-shaped sling frame and the boiler flexible tube panel 21, wherein round tubes 22 are arranged on the boiler flexible tube panel 21 at intervals in parallel, and a connecting plate 23 is arranged between every two adjacent round tubes 22; the method is characterized by comprising the following steps:
the first step, according to the shape of the round pipe 22 that the interval set up side by side on the flexible tube panel 21 of boiler to and the interval between two adjacent round pipe 22, make "T" font hoist frame, the concrete process is: a lifting lug 2 is arranged at the center of the top end face of a rectangular horizontal base plate 1, a group of vertical plates 3 are arranged in parallel at equal intervals at the center of the lower bottom face of the rectangular horizontal base plate 1, the group of vertical plates 3 are composed of four vertical plates, and the thickness of each vertical plate is smaller than the width of a connecting plate 23 arranged between two adjacent circular tubes 22 on a boiler flexible tube panel 21; each vertical plate is provided with a horizontal cross arm pin shaft through hole 4, a right supporting sleeve 9 is manufactured, a right annular groove 10 is formed in the outer circle side surface of the right supporting sleeve 9, the diameter of the right annular groove 10 is equal to the outer diameter of each circular pipe 22, the distance between every two adjacent right annular grooves 10 is 2 times as large as the distance between every two adjacent circular pipes 22, and a left supporting sleeve 11 is manufactured by the same method;
secondly, correspondingly arranging four through holes 24 of a group of vertical plates 3 on a flexible tube panel 21 of the boiler, wherein the through holes 24 are arranged on a connecting plate 23;
thirdly, a group of vertical plates 3 on the T-shaped hanger frame manufactured in the first step penetrate through four through holes 24 formed in the boiler flexible tube panel 21 above the boiler flexible tube panel 21 along the direction from top to bottom, and a horizontal cross arm pin shaft through hole 4 is formed below the boiler flexible tube panel 21;
fourthly, the horizontal cross arm pin shaft 6 is connected in the horizontal cross arm pin shaft connecting through hole 4 on the group of vertical plates 3 in a penetrating manner, the left side supporting sleeve 11 is sleeved on the horizontal cross arm pin shaft 6 on the left side of the group of vertical plates 3, and the right side supporting sleeve 9 is sleeved on the horizontal cross arm pin shaft 6 on the right side of the group of vertical plates 3; the left end of the horizontal cross arm pin shaft 6 is in threaded connection with a pin shaft left end nut 8, and a left side supporting sleeve 11 and a right side supporting sleeve 9 are fixedly clamped on two sides of a group of vertical plates 3;
and a fifth step of enabling the flexible tube panel 21 of the boiler to drop and overlap the left supporting sleeve 11 and the right supporting sleeve 9, and enabling the lower arc-shaped surface of the circular tube 22 to be embedded into the annular groove on the supporting sleeves.
A left jackscrew bolt-joint through hole 14 is formed in the rectangular horizontal base plate 1 on the left side of the lifting lug 2, and a right jackscrew bolt-joint through hole 13 is formed in the rectangular horizontal base plate 1 on the right side of the lifting lug 2; a left jackscrew 17 is screwed in the left jackscrew screwing through hole 14, the lower end of the left jackscrew 17 is connected with a left pressing block 18, a right jackscrew 15 is screwed in the right jackscrew screwing through hole 13, and the lower end of the right jackscrew 15 is connected with a right pressing block 16; rotating the left jackscrew 17 and the right jackscrew 15 to enable the left pressing block 18 and the right pressing block 16 to be abutted on the upper top surface of the boiler flexible tube panel 21; reinforcing ribs 25 are arranged at intervals on the boiler flexible tube panels 21.
When the flexible tube panel 21 of the boiler is hoisted, a plurality of hoisting points can be arranged on the flexible tube panel 21 of the boiler, and the hoisting points can be arranged in an array manner; after the combined lifting appliance is uniformly installed at a plurality of lifting points, a steel wire rope is used for lifting the tube panel to move through the lifting holes 5; compared with the existing hoisting sling, the invention has the following characteristics: the combined lifting appliance adopts a supporting sleeve provided with an arc-shaped groove to be connected on a horizontal cross arm pin shaft (6) in a penetrating manner, so that the supporting sleeve is attached to a circular tube 22 on a boiler flexible tube panel 21, and the boiler flexible tube panel 21 is ensured not to generate displacement in the lifting process; the T-shaped hanger frame in the combined hanger adopts four connecting vertical plates, the stress of the connecting vertical plates is even, the connecting vertical plates can be prevented from being broken during the hoisting, the stability of the flexible tube panel can be ensured, and the bending deformation phenomenon during the hoisting is avoided; and thirdly, by adopting a plurality of combined lifting appliances, the flexible tube panels 21 of the boiler are lifted at multiple points, so that the tube panels can be prevented from bending, and the invention is also suitable for other lifting modes.
Claims (3)
1. The utility model provides a combination hoist that hoist and mount boiler flexible tube panel was used, including rectangle horizontal base plate (1), in the top end face central authorities of rectangle horizontal base plate (1), be provided with lug (2), in the lower bottom surface central authorities of rectangle horizontal base plate (1), parallel each other with equal interval and be provided with a set of vertical riser (3), rectangle horizontal base plate (1) and a set of vertical riser (3) constitution "T" font hoist frame, a serial communication port, on every vertical riser of a set of vertical riser (3), all be provided with horizontal cross arm round pin axle cross-under through-hole (4), in horizontal cross arm round pin axle cross-under through-hole (4), cross-under horizontal cross arm round pin axle (6), on horizontal cross arm round pin axle (6) on a set of vertical riser (3) right side, be provided with right side support sleeve (9), be provided with right annular groove (10) on the excircle side of right side support sleeve (9), on horizontal cross arm (6) on the left side of a set of vertical riser (3), be provided with left side support sleeve (11), be provided with annular groove (12) on the excircle side support sleeve (11).
2. The combined lifting appliance for lifting the flexible tube panel of the boiler according to claim 1, wherein a pin shaft cap (7) is fixedly arranged at the right end of the horizontal cross arm pin shaft (6), an external thread is arranged at the left end of the horizontal cross arm pin shaft (6), and a pin shaft left end nut (8) is screwed on the external thread arranged at the left end of the horizontal cross arm pin shaft (6).
3. The combined lifting appliance for lifting the flexible tube panel of the boiler according to claim 2, wherein a left jackscrew bolt through hole (14) is formed in the rectangular horizontal base plate (1) on the left side of the lifting lug (2), and a right jackscrew bolt through hole (13) is formed in the rectangular horizontal base plate (1) on the right side of the lifting lug (2); a left jackscrew (17) is screwed in the left jackscrew screwing through hole (14), a left pressing block (18) is connected to the lower end of the left jackscrew (17), a right jackscrew (15) is screwed in the right jackscrew screwing through hole (13), a right pressing block (16) is connected to the lower end of the right jackscrew (15), a right locking nut (19) is arranged between the right jackscrew (15) and the upper top surface of the rectangular horizontal substrate (1), and a left locking nut (20) is arranged between the left jackscrew (17) and the upper top surface of the rectangular horizontal substrate (1); the central axis of the lifting hole (5) on the lifting lug (2) and the central axis of the horizontal cross arm pin shaft cross-connecting through hole (4) are mutually vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222020778.1U CN218145317U (en) | 2022-08-02 | 2022-08-02 | Combined lifting appliance for lifting flexible tube panel of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222020778.1U CN218145317U (en) | 2022-08-02 | 2022-08-02 | Combined lifting appliance for lifting flexible tube panel of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218145317U true CN218145317U (en) | 2022-12-27 |
Family
ID=84597155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222020778.1U Active CN218145317U (en) | 2022-08-02 | 2022-08-02 | Combined lifting appliance for lifting flexible tube panel of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218145317U (en) |
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2022
- 2022-08-02 CN CN202222020778.1U patent/CN218145317U/en active Active
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