Double-sided coal bunker unit boiler tower crane attachment support arm reinforcement and transmission device

Abstract

This invention provides a reinforcement and transmission device for the attachment support arm of a tower crane in a double-sided coal bunker boiler unit. The device includes a first tie rod, a second tie rod, a third tie rod, a first transmission beam, and a second transmission beam at the first level, and a first temporary reinforcement transmission beam, a second temporary reinforcement transmission beam, a third temporary reinforcement transmission beam, and a fourth temporary reinforcement transmission beam at the second level. This invention effectively transmits the load of the tower crane exceeding its independent height to the attachment points of the boiler steel structure through the device, ensuring that the attachment points of the boiler steel structure do not experience irreversible deformation or tearing damage. Simultaneously, it ensures that the overall column grid of the boiler does not experience irreversible displacement before an effective overall column grid is formed.

Description

Technical Field

[0001] This invention relates to the field of coal-fired power generation technology, and in particular to a reinforcement and transmission device for the attachment support arm of a tower crane for a double-sided coal bunker boiler unit. Background Technology

[0002] Boiler equipment is one of the main thermal power equipment in thermal power generating units. Its task is to convert the chemical energy of fuel into thermal energy through combustion, and to use this thermal energy to heat water into a certain quantity and quality (pressure and temperature) of steam, which drives the steam turbine to rotate and do work. As one of the three main units, the boiler requires special hoisting machinery due to its characteristics of large number of equipment, heavy weight, and the fact that the construction period is crucial to the commissioning of the unit.

[0003] Thermal power generating units employ a double-sided coal bunker layout, with the bunkers positioned on the left and right sides of the boiler. Typically, the top elevation of the coal bunkers differs significantly from the top elevation of the boiler's steel structure. The tower crane is positioned outside the boiler's steel structure column grid. Influenced by the overall height of the boiler's steel structure, the lifting operation tasks, and the coal bunker layout, various issues arise, such as excessive tower crane height and excessively long attached support arms. The greater the distance between the center of the tower crane's attached support arm and the attached structure during installation, the longer the support arm becomes. Under the same axial pressure, the stability deteriorates, significantly reducing the effective load of the tower crane. Excessively long support arms also cause considerable installation difficulties. Furthermore, before the boiler's main beam is hoisted into place, the overall stability of the boiler's steel structure column grid does not meet design requirements. If stress concentration occurs at the attached support arm and its load-bearing points, the boiler's steel structure at these points will bear significant additional stress, leading to irreversible deformation or tearing damage. This could even cause irreversible displacement of the entire boiler steel structure column grid, resulting in serious quality and safety hazards to the overall steel structure's load-bearing capacity. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a reinforcement and transmission device for the attachment support arm of a tower crane in a double-sided coal bunker boiler unit. This device effectively transmits the load of the tower crane when it exceeds its independent height to the attachment point of the boiler steel structure, ensuring that the attachment point of the boiler steel structure does not experience irreversible deformation or tearing damage. At the same time, it ensures that the overall column grid of the boiler does not experience irreversible displacement before the boiler steel structure forms an effective overall column grid.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A reinforcement and transmission device for the attachment support arm of a tower crane with a double-sided coal bunker unit boiler includes: a first tie rod, a second tie rod, a third tie rod, a first transmission beam, and a second transmission beam;

[0007] The first end of the first tie rod is used to be fixedly connected to the tower crane's load-bearing frame, and the second end of the first connecting rod is used to be fixedly connected to the first boiler steel structure column.

[0008] The first end of the second tie rod is used to be fixedly connected to the steel structure column of the first boiler, and the second end of the second tie rod is used to be fixedly connected to the load-bearing frame of the tower crane.

[0009] The first end of the third tie rod is used to be fixedly connected to the tower crane's load-bearing frame, and the second end of the third tie rod is used to be fixedly connected to the second boiler steel structure column.

[0010] The steel structure columns of the first boiler, the second boiler, the third boiler, and the fourth boiler are arranged adjacent to each other in sequence. The first transmission beam is fixedly connected to the steel structure columns of the first boiler and the second boiler respectively, and the second transmission beam is fixedly connected to the steel structure columns of the third boiler and the fourth boiler respectively.

[0011] The first conduction beam and the second conduction beam are fixedly connected.

[0012] As an optional implementation, the first end of the first tie rod is used for a detachable fixed connection with the tower crane's load-bearing frame, and the second end of the first connecting rod is used for a detachable fixed connection with the first boiler steel structure column.

[0013] The first end of the second tie rod is used for a detachable fixed connection with the steel structure column of the first boiler, and the second end of the second tie rod is used for a detachable fixed connection with the load-bearing frame of the tower crane.

[0014] The first end of the third tie rod is used for a detachable fixed connection with the tower crane's load-bearing frame, and the second end of the third tie rod is used for a detachable fixed connection with the second boiler steel structure column.

[0015] The first transmission beam is detachably and fixedly connected to the first boiler steel structure column and the second boiler steel structure column, respectively. The second transmission beam is detachably and fixedly connected to the third boiler steel structure column and the fourth boiler steel structure column, respectively. The first transmission beam is detachably and fixedly connected to the second transmission beam.

[0016] As a further limitation, the first transmission beam is detachably and fixedly connected to the first boiler steel structure column and the second boiler steel structure column, respectively; the second transmission beam is detachably and fixedly connected to the third boiler steel structure column and the fourth boiler steel structure column, respectively; the detachable and fixed connection between the first transmission beam and the second transmission beam includes:

[0017] The first transmission beam is detachably and fixedly connected to the first boiler steel structure column and the second boiler steel structure column through I-beam clamps and I-beam supports, respectively.

[0018] The second transmission beam is detachably and fixedly connected to the third and fourth boiler steel structure columns via I-beam clamps and I-beam supports, respectively.

[0019] As a further limitation, the first end of the first tie rod is used for a detachable fixed connection with the tower crane bearing frame via a pin and a cotter pin, and the second end of the first connecting rod is used for a detachable fixed connection with the first boiler steel structure column via a pin and a cotter pin.

[0020] The first end of the second tie rod is used for the connection between the first boiler steel structure column and the tie rod, which is detachably fixedly connected by a pin and a cotter pin. The second end of the second tie rod is used for the detachable fixed connection between the tower crane bearing frame and the tower crane bearing frame, which is detachably fixedly connected by a pin and a cotter pin.

[0021] The first end of the third tie rod is used for a detachable fixed connection with the tower crane's supporting frame via a pin and a cotter pin, and the second end of the third tie rod is used for a detachable fixed connection with the second boiler steel structure column via a pin and a cotter pin.

[0022] As an optional implementation, the central axes of the first boiler steel structure column, the second boiler steel structure column, the third boiler steel structure column, and the fourth boiler steel structure column are parallel and coplanar.

[0023] As an optional implementation, it also includes a first temporary reinforcing conduction beam and a second temporary reinforcing conduction beam;

[0024] Of the two adjacent boiler steel structure columns, one boiler steel structure column is fixedly connected to the first temporary reinforcement transmission beam, and the other boiler steel structure column is fixedly connected to the second temporary reinforcement transmission beam.

[0025] The central axes of the first temporary reinforcing conduction beam and the second temporary reinforcing conduction beam are parallel, and the central axes of the first temporary reinforcing conduction beam and the second temporary reinforcing conduction beam are perpendicular to the central axis of the first conduction beam or the central axis of the second conduction beam, respectively.

[0026] A support beam connects the first temporary reinforcement conduction beam and the second temporary reinforcement conduction beam.

[0027] As a further limitation, one boiler steel structure column is welded and fixedly connected to the first temporary reinforcement transmission beam, and the other boiler steel structure column is welded and fixedly connected to the second temporary reinforcement transmission beam.

[0028] As a further limitation, the support beam includes a third temporary reinforcing conduction beam and a fourth temporary reinforcing conduction beam. The third temporary reinforcing conduction beam is vertically and fixedly connected to the first temporary reinforcing conduction beam and the second temporary reinforcing conduction beam, respectively. The fourth temporary reinforcing conduction beam is vertically and fixedly connected to the first temporary reinforcing conduction beam and the second temporary reinforcing conduction beam, respectively.

[0029] As a further limitation, the central axes of the first, second, third, and fourth temporary reinforcing conduction beams are located on the same horizontal plane, and the vertical heights of the first, second, third, and fourth temporary reinforcing conduction beams are greater than the vertical heights of the first, second, and third tie rods.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. Through the arrangement and use of the reinforcement and transmission device for the attached support arm of the double-sided coal bunker boiler tower crane described in this invention, the load of the tower crane used for boiler unit installation under the double-sided coal bunker arrangement, when exceeding the independent height, is transmitted to the attachment point of the boiler steel structure in a segmented manner. The load of the tower crane is evenly distributed on the main columns of the four steel structure column grids using the long beam (and the first transmission beam) and the short beam (i.e., the second transmission beam) of the transmission device in a balanced transmission manner. Through the effective connection of the column grids and the arrangement of temporary transmission beams (including the first, second, third, and fourth temporary transmission beams), the overall column grid of the boiler steel structure is stressed. Before the boiler large plate beam is hoisted into place and the overall column grid structure of the boiler is formed, the load-bearing capacity is increased compared to a single-sided or independent column group, thus increasing the effective load of the tower crane, increasing the tower crane's operating efficiency and operating range under the same load, reducing the probability of damage, deformation, or tearing of the main columns of the boiler steel structure, and avoiding irreversible displacement of the overall column grid of the boiler.

[0032] 2. This invention innovatively proposes a reinforcement and transmission device for the attachment support arm of a double-sided coal bunker boiler tower crane. The lengths of the short tie rod (i.e., the first tie rod and the third tie rod) and the long tie rod (i.e., the second tie rod) are adjustable, which further improves the layout accuracy of the attachment points of the tower crane, enhances the convenience of the tower crane layout and the uniform distribution stability of the overall transmission device, and reduces the difficulty of controlling the installation accuracy.

[0033] 3. This invention innovatively proposes a reinforcement and transmission device for the attachment support arm of a double-sided coal bunker boiler tower crane. The connecting clamp adopts a square pin shaft through-mounting method, which can reduce the amount of work at the attachment point, improve installation efficiency, and facilitate reuse after disassembly. The I-beam clamp more effectively plays a limiting and guiding role, which facilitates the improvement of the load transmission direction accuracy of the long beam (i.e., the first transmission beam) and the short beam (i.e., the second transmission beam) of the transmission device, and avoids the slippage of the long beam (i.e., the first transmission beam) and the short beam (i.e., the second transmission beam). The use of two clamp types also further saves raw materials. Attached Figure Description

[0034] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0035] Figure 1 A top view schematic diagram of the structure of the reinforcement and conduction device for the attachment support arm of the tower crane of the double-sided coal bunker unit boiler provided in an embodiment of the present invention;

[0036] Figure 2 This is a cross-sectional view (AA) of the structure of the reinforcement and conduction device for the attached support arm of the tower crane of the double-sided coal bunker unit boiler provided in an embodiment of the present invention.

[0037] Figure 3 for Figure 2 A detailed schematic diagram of point a in the diagram;

[0038] Figure 4 This is a sectional view (BB) of the structure of the reinforcement and conduction device for the attached support arm of the tower crane of the double-sided coal bunker unit boiler provided in an embodiment of the present invention.

[0039] Figure 5 This is a CC cross-sectional schematic diagram of the structure of the reinforcement and conduction device for the attached support arm of the tower crane of the double-sided coal bunker unit boiler provided in an embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the arrangement of temporary reinforcement transmission beams provided in an embodiment of the present invention;

[0041] Figure 7 This is a schematic diagram of the load-bearing capacity verification calculation of the attachment support arm reinforcement and conduction device provided in an embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of the structural forms of the first tie rod, the second tie rod, and the third tie rod provided in an embodiment of the present invention;

[0043] Figure 9 Detailed structural forms of single-axis and dual-axis connecting grippers provided in embodiments of the present invention;

[0044] Among them, 1-first tie rod; 2-second tie rod; 3-third tie rod; 4-tower crane bearing frame; 5-first transmission beam; 6-second transmission beam; 7-double-axis connecting clamp; 8-single-axis connecting clamp; 9-I-beam clamp; 10-I-beam support; 11-first boiler steel structure column; 12-first pin; 13-first cotter pin; 14-second pin; 15-first temporary reinforcing transmission beam; 16-second temporary reinforcing transmission beam; 17-third temporary reinforcing transmission beam; 18-second temporary reinforcing transmission beam; 19-channel steel; 20-ear seat; 21-stiffening plate; 22-second cotter pin. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0046] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] Where there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0049] Example:

[0050] like Figures 1-9 As shown, this embodiment provides a reinforcement and transmission device for the attachment support arm of a tower crane in a double-sided coal bunker boiler unit. The load of the tower crane exceeding its independent height is effectively transmitted to the attachment point of the boiler steel structure through the attachment support arm reinforcement and transmission device, ensuring that the attachment point of the boiler steel structure does not suffer irreversible deformation or tearing damage, and ensuring that the overall column grid of the boiler does not undergo irreversible displacement before the boiler steel structure forms an effective overall column grid.

[0051] Specifically, the reinforcement and conduction device includes: a first tie rod 1, a second tie rod 2, a third tie rod 3, a first conduction beam 5, and a second conduction beam 6, wherein the lengths of the first tie rod 1 and the third tie rod 3 are both shorter than the length of the second tie rod 2, that is, the first tie rod 1 and the third tie rod 3 are both short tie rods, the second tie rod 2 is a long tie rod, and the lengths of the first tie rod 1, the second tie rod 2, and the third tie rod 3 are adjustable;

[0052] The first end of the first tie rod 1 is used to be fixedly connected to the tower crane bearing frame 4, and the second end of the first connecting rod 1 is used to be fixedly connected to the first boiler steel structure column 11.

[0053] The first end of the second tie rod 2 is used to be fixedly connected to the first boiler steel structure column 11, and the second end of the second tie rod 2 is used to be fixedly connected to the tower crane bearing frame 4.

[0054] The first end of the third tie rod 3 is used to be fixedly connected to the tower crane bearing frame 4, and the second end of the third tie rod 3 is used to be fixedly connected to the second boiler steel structure column.

[0055] The load of the tower crane is transferred to the nearby steel structure column;

[0056] The first boiler steel structure column 11, the second boiler steel structure column, the third boiler steel structure column and the fourth boiler steel structure column are arranged adjacent to each other in sequence. The first transmission beam 5 is fixedly connected to the first boiler steel structure column 11 and the second boiler steel structure column respectively, and the second transmission beam 6 is fixedly connected to the third boiler steel structure column and the fourth boiler steel structure column respectively.

[0057] The first transmission beam 5 and the second transmission beam 6 are fixedly connected. The first transmission beam 5 and the second transmission beam 6 form an effective column grid bearing structure for the four adjacent boiler steel structure columns through the I-beam clamps 9 and I-beam supports 10, thereby enabling the overall column grid of the boiler steel structure to evenly distribute and bear the load of the tower crane.

[0058] In this embodiment, the tower crane adopts a two-layer attached support arm reinforcement and transmission device. The first layer of attached support arm reinforcement and transmission device does not have a temporary reinforcement and transmission beam according to the steel structure layout and the independent height requirements of the tower crane. The second layer of attached support arm reinforcement and transmission device is set at the high position of the boiler steel structure. Before the boiler large plate beam is in place, the steel structure has not effectively formed a column grid structure. At the same time, the four main columns of the boiler steel structure alone cannot bear the load transmitted by the high-position tower crane. Therefore, a temporary reinforcement and transmission beam needs to be set.

[0059] In this embodiment, the first end of the first tie rod 1 is used for a detachable fixed connection with the tower crane bearing frame 4, and the second end of the first connecting rod 1 is used for a detachable fixed connection with the first boiler steel structure column.

[0060] The first end of the second tie rod 2 is used for a detachable fixed connection with the first boiler steel structure column 11, and the second end of the second tie rod 2 is used for a detachable fixed connection with the tower crane bearing frame.

[0061] The first end of the third tie rod 3 is used for a detachable fixed connection with the tower crane's load-bearing frame, and the second end of the third tie rod 3 is used for a detachable fixed connection with the second boiler steel structure column.

[0062] The first transmission beam 5 is detachably and fixedly connected to the first boiler steel structure column and the second boiler steel structure column, respectively. The second transmission beam 6 is detachably and fixedly connected to the third boiler steel structure column and the fourth boiler steel structure column, respectively. The first transmission beam 5 and the second transmission beam 6 are detachably and fixedly connected.

[0063] More specifically, the first transmission beam 5 is detachably and fixedly connected to the first boiler steel structure column 11 and the second boiler steel structure column, respectively; the second transmission beam 6 is detachably and fixedly connected to the third boiler steel structure column and the fourth boiler steel structure column, respectively; the detachable and fixed connection between the first transmission beam 5 and the second transmission beam 6 includes:

[0064] The first transmission beam 5 is detachably and fixedly connected to the first boiler steel structure column 11 and the second boiler steel structure column respectively via I-beam clamps and I-beam supports; the second transmission beam 6 is detachably and fixedly connected to the third boiler steel structure column and the fourth boiler steel structure column respectively via I-beam clamps 9 and I-beam supports 10. It is understood that in some other implementations, other detachable connection methods, such as bolts, can also be used. Those skilled in the art can choose according to the specific working conditions, which will not be elaborated here.

[0065] In this embodiment, the first end of the first tie rod 1 is used to be detachably fixedly connected to the tower crane bearing frame 4 through a pin and a cotter pin, and the second end of the first connecting rod 1 is used to be detachably fixedly connected to the double-axis connecting bracket 7 of the first boiler steel structure column 1 through a pin and a cotter pin.

[0066] The first end of the second tie rod 2 is used to be detachably fixedly connected to the double-axis connection bracket 7 of the first boiler steel structure column 11 via a pin and a cotter pin; the second end of the second tie rod 2 is used to be detachably fixedly connected to the tower crane bearing frame 4 via a pin and a cotter pin.

[0067] The first end of the third tie rod 3 is used for a detachable fixed connection with the tower crane bearing frame 4 via a pin and a cotter pin, and the second end of the third tie rod 3 is used for a detachable fixed connection with the single-axis connection bracket 8 of the second boiler steel structure column via a first pin 12 and a first cotter pin 13.

[0068] In this embodiment, the central axes of the first boiler steel structure column 11, the second boiler steel structure column, the third boiler steel structure column, and the fourth boiler steel structure column are parallel and coplanar.

[0069] The first conduction beam 5 and the second conduction beam 6 are connected by the second pin 14 and the second cotter pin 22.

[0070] In this embodiment, it also includes a first temporary reinforcing conduction beam 15, a second temporary reinforcing conduction beam 16, a third temporary reinforcing conduction beam 17, and a fourth temporary reinforcing conduction beam 18;

[0071] Of the two adjacent boiler steel structure columns, one boiler steel structure column is fixedly connected to the first temporary reinforcement transmission beam 15, and the other boiler steel structure column is fixedly connected to the second temporary reinforcement transmission beam 16.

[0072] The central axes of the first temporary reinforcing conduction beam 15 and the second temporary reinforcing conduction beam 16 are parallel, and the central axes of the first temporary reinforcing conduction beam 15 and the second temporary reinforcing conduction beam 16 are perpendicular to the central axis of the first conduction beam 5 or the central axis of the second conduction beam 6, respectively.

[0073] A support beam connects the first temporary reinforcing conduction beam 15 and the second temporary reinforcing conduction beam 16.

[0074] In this embodiment, one boiler steel structure column is welded and fixedly connected to the first temporary reinforcement transmission beam 15, and the other boiler steel structure column is welded and fixedly connected to the second temporary reinforcement transmission beam 16. It is understood that in some other implementations, other fixing methods, such as bolt fixing, can also be used. Those skilled in the art can choose according to the specific working conditions, which will not be elaborated here.

[0075] In this embodiment, the support beam includes a third temporary reinforcing conduction beam 17 and a fourth temporary reinforcing conduction beam 18. The third temporary reinforcing conduction beam 17 is vertically and fixedly connected to the first temporary reinforcing conduction beam 15 and the second temporary reinforcing conduction beam 16, respectively. The fourth temporary reinforcing conduction beam 18 is vertically and fixedly connected to the first temporary reinforcing conduction beam 15 and the second temporary reinforcing conduction beam 16, respectively.

[0076] In this embodiment, the central axes of the first temporary reinforcing conduction beam 15, the second temporary reinforcing conduction beam 16, the third temporary reinforcing conduction beam 17, and the fourth temporary reinforcing conduction beam 18 are located on the same horizontal plane, and the vertical height of the first temporary reinforcing conduction beam 15, the second temporary reinforcing conduction beam 16, the third temporary reinforcing conduction beam 17, and the fourth temporary reinforcing conduction beam 18 is greater than the vertical height of the first tie rod 1, the second tie rod 2, and the third tie rod 3. That is, the first tie rod 1, the second tie rod 2, and the third tie rod 3 are located in the first layer, and the first temporary reinforcing conduction beam 15, the second temporary reinforcing conduction beam 16, the third temporary reinforcing conduction beam 17, and the fourth temporary reinforcing conduction beam 18 are located in the second layer.

[0077] In this embodiment, the first temporary reinforcing conduction beam 15, the second temporary reinforcing conduction beam 16, the third temporary reinforcing conduction beam 17 and the fourth temporary reinforcing conduction beam 18 are all made of I-beams, and welded stiffening plates are added to the inner side at intervals of a specified length.

[0078] The third temporary reinforcing beam 17 and the fourth temporary reinforcing beam 18 serve to connect and enhance the stability of the local column grid. The first temporary reinforcing beam 15, the second temporary reinforcing beam 16, the third temporary reinforcing beam 17 and the fourth temporary reinforcing beam 18 are fixed to each other by welding, and the minimum weld joint is not less than the thinnest part of the component.

[0079] In this embodiment, the stiffness and strength of the boiler steel structure columns are checked based on the stress conditions at the attachment points, and the load-bearing capacity of four adjacent boiler steel structure columns is calculated and checked. Figure 7 As shown.

[0080] In this embodiment, the lengths of the first tie rod 1, the second tie rod 2, and the third tie rod 3 are adjusted according to the load-bearing condition of the attachment point and the arrangement position of the tower crane to achieve the purpose of balanced load-bearing force.

[0081] like Figure 8 As shown, the first tie rod 1, the second tie rod 2, and the third tie rod 3 are made of double-channel steel 19. When adjusting the length, they need to be cut and re-welded on site. Before welding, it is necessary to make a notch around the channel steel 19. The ends of the first tie rod 1, the second tie rod 2, and the third tie rod 3 are each provided with a lug 20. The lug 20 has a through hole for fixed connection. The first tie rod 1, the second tie rod 2, and the third tie rod 3 are also provided with stiffening plates 21.

[0082] like Figure 9 The diagram shown is a schematic of dual-axis continuous climbing 7 and single-axis continuous climbing 8.

[0083] In this embodiment, the first tie rod 1, the second tie rod 2 and the third tie rod 3 are arranged between the tower crane bearing frame 4 and the boiler steel structure column connecting brackets (including double-axis connecting brackets 7 and single-axis connecting brackets 8) to play the role of load transition and transmission.

[0084] The connection method of the connecting bracket includes: inserting a square pin into the square hole of the connecting bracket, welding the square pin to the connecting bracket, leaving a certain gap between the two sides of the bracket, the inner side of the square pin and the main column of the steel structure, filling the gap with a steel plate, and welding the steel plate to the connecting bracket to prevent the connecting bracket from sliding down as a whole.

[0085] The first conduction beam 5 and the second conduction beam 6 are arranged on one side of the four boiler steel structure columns, and are connected to the four boiler steel structure columns by means of I-beam brackets 9 and I-beam supports 10, forming an effective column grid load-bearing body for the four boiler steel structure columns.

[0086] In this embodiment, the side coal bunker refers to a layout between coal bunkers in a thermal power generating unit. This facilitates optimized layout of the main plant, shortens the distance between the turbine hall and the boiler room, reduces losses in the four major pipelines, and offers greater water economy advantages. It also shortens the distance to the chimney, resulting in a smaller footprint for the unit. However, the side coal bunker layout also has a certain impact on engineering construction and efficiency. The side coal bunker construction takes a long time and may even overlap with the boiler steel structure hoisting, increasing the complexity of the boiler room layout and the difficulty of mechanical control and maintenance. The double-sided side coal bunkers are located on the left and right sides of the boiler furnace, and the difference in elevation between the top of the side coal bunkers and the top of the boiler steel structure is significant. In addition, a coal conveying trestle is also arranged on the extended end side, which has a greater impact on the layout and use of boiler room hoisting machinery.

[0087] In this embodiment, thermal power generation generally refers to the method of using the heat energy generated when combustibles are burned to heat water, turning the water into high-temperature, high-pressure steam, and then using the steam to drive a turbine and in turn drive a generator to generate electricity; generator sets that use combustibles as fuel are collectively referred to as thermal power generator sets;

[0088] In this embodiment, a tower crane, also known as a tower hoist, originated in Western Europe. It is a rotating crane with its boom mounted on a tall tower; it has a large working space and is mainly used for the vertical and horizontal transport of materials and the installation of building components in building construction; it consists of three parts: a metal structure, a working mechanism, and an electrical system; the metal structure includes the tower body, boom, and base, etc.; the main technical parameters of a tower crane include maximum lifting capacity, end lifting capacity (lifting torque), maximum / minimum radius, maximum lifting height, structural type, luffing method, and tower body cross-sectional dimensions, etc.; a fixed tower crane is connected to the building at regular intervals by attachment rods, which is called an attached tower crane. It uses a tower extension device to allow the upper rotating part of the crane to increase in height according to the building, and is used for high-rise building construction;

[0089] In this embodiment, the support arm refers to the support frame structure in the prior art that, when a tower crane exceeds its traveling or fixed height, it must be reinforced by cables connected to the ground or fixed to the building structure at regular intervals along the vertical direction to maintain the stability of the tower crane.

[0090] In this embodiment, the transmission device refers to the connection device that transmits the applied force to the supporting structure in a certain way when the force is applied to the outside of the structure or component. According to a certain transmission or transformation logic, stress or strain will occur inside the material or structure. In order to ensure that the structure or component is maintained within the maximum allowable stress range and maintain its stability, the applied force needs to be transmitted to the supporting structure in a certain way.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A reinforcement and transmission device for the attachment support arm of a tower crane for a double-sided coal bunker boiler unit. Its features are, Includes: a first tie rod, a second tie rod, a third tie rod, a first conduction beam, and a second conduction beam; The first end of the first tie rod is used to be fixedly connected to the tower crane's load-bearing frame, and the second end of the first tie rod is used to be fixedly connected to the first boiler steel structure column. The first end of the second tie rod is used to be fixedly connected to the steel structure column of the first boiler, and the second end of the second tie rod is used to be fixedly connected to the load-bearing frame of the tower crane. The first end of the third tie rod is used to be fixedly connected to the tower crane's load-bearing frame, and the second end of the third tie rod is used to be fixedly connected to the second boiler steel structure column. The lengths of the first and third pull rods, and the second pull rod are adjustable; The steel structure columns of the first boiler, the second boiler, the third boiler, and the fourth boiler are arranged adjacent to each other in sequence. The first transmission beam is fixedly connected to the steel structure columns of the first boiler and the second boiler respectively, and the second transmission beam is fixedly connected to the steel structure columns of the third boiler and the fourth boiler respectively. The first conduction beam and the second conduction beam are fixedly connected; The first transmission beam is detachably and fixedly connected to the first boiler steel structure column and the second boiler steel structure column, respectively; the second transmission beam is detachably and fixedly connected to the third boiler steel structure column and the fourth boiler steel structure column, respectively; and the first transmission beam is detachably and fixedly connected to the second transmission beam. It also includes a first temporary reinforcement conduction beam and a second temporary reinforcement conduction beam; Of the two adjacent boiler steel structure columns, one boiler steel structure column is fixedly connected to the first temporary reinforcement transmission beam, and the other boiler steel structure column is fixedly connected to the second temporary reinforcement transmission beam. The central axes of the first temporary reinforcing conduction beam and the second temporary reinforcing conduction beam are parallel, and the central axes of the first temporary reinforcing conduction beam and the second temporary reinforcing conduction beam are perpendicular to the central axis of the first conduction beam or the central axis of the second conduction beam, respectively. A supporting beam connects the first temporary reinforcement conduction beam and the second temporary reinforcement conduction beam. The supporting beam includes a third temporary reinforcement transmission beam and a fourth temporary reinforcement transmission beam; By using the first and second transmission beams in a balanced transmission manner, the load of the tower crane is evenly distributed on the main columns of the four steel structure column grids. Through the effective connection of the column grids and the arrangement of the first, second, third, and fourth temporary reinforcement transmission beams, the overall column grid of the boiler steel structure is stressed.

2. The reinforcement and transmission device for the attached support arm of the double-sided coal bunker unit boiler tower crane as described in claim 1, characterized in that, The first end of the first tie rod is used for a detachable fixed connection with the tower crane's load-bearing frame, and the second end of the first tie rod is used for a detachable fixed connection with the first boiler steel structure column. The first end of the second tie rod is used for a detachable fixed connection with the steel structure column of the first boiler, and the second end of the second tie rod is used for a detachable fixed connection with the load-bearing frame of the tower crane. The first end of the third tie rod is used for a detachable fixed connection with the tower crane's load-bearing frame, and the second end of the third tie rod is used for a detachable fixed connection with the second boiler steel structure column.

3. The reinforcement and transmission device for the attached support arm of the double-sided coal bunker unit boiler tower crane as described in claim 1, characterized in that, The first conduction beam is detachably and fixedly connected to the first boiler steel structure column and the second boiler steel structure column, respectively. The second conduction beam is detachably and fixedly connected to the third boiler steel structure column and the fourth boiler steel structure column, respectively. The detachable and fixed connection between the first conduction beam and the second conduction beam includes: The first transmission beam is detachably and fixedly connected to the first boiler steel structure column and the second boiler steel structure column through I-beam clamps and I-beam supports, respectively. The second transmission beam is detachably and fixedly connected to the third and fourth boiler steel structure columns via I-beam clamps and I-beam supports, respectively.

4. The reinforcement and transmission device for the attached support arm of the double-sided coal bunker unit boiler tower crane as described in claim 2, characterized in that, The first end of the first tie rod is used for a detachable fixed connection with the tower crane bearing frame via a pin and a cotter pin, and the second end of the first tie rod is used for a detachable fixed connection with the first boiler steel structure column via a pin and a cotter pin. The first end of the second tie rod is used for the connection between the first boiler steel structure column and the tie rod, which is detachably fixedly connected by a pin and a cotter pin. The second end of the second tie rod is used for the detachable fixed connection between the tower crane bearing frame and the tower crane bearing frame, which is detachably fixedly connected by a pin and a cotter pin. The first end of the third tie rod is used for a detachable fixed connection with the tower crane's supporting frame via a pin and a cotter pin, and the second end of the third tie rod is used for a detachable fixed connection with the second boiler steel structure column via a pin and a cotter pin.

5. The reinforcement and transmission device for the attached support arm of the double-sided coal bunker unit boiler tower crane as described in claim 1, characterized in that, The central axes of the steel structural columns of the first boiler, the second boiler, the third boiler, and the fourth boiler are parallel and coplanar.

6. The reinforcement and transmission device for the attached support arm of the double-sided coal bunker unit boiler tower crane as described in claim 1, characterized in that, One boiler steel structure column is welded and fixedly connected to the first temporary reinforcement transmission beam, and the other boiler steel structure column is welded and fixedly connected to the second temporary reinforcement transmission beam.

7. The reinforcement and transmission device for the attached support arm of the double-sided coal bunker unit boiler tower crane as described in claim 1, characterized in that, The central axes of the first, second, third, and fourth temporary reinforcing conduction beams are located on the same horizontal plane, and the vertical heights of the first, second, third, and fourth temporary reinforcing conduction beams are greater than the vertical heights of the first, second, and third tie rods.

8. The reinforcement and transmission device for the attached support arm of the double-sided coal bunker unit boiler tower crane as described in claim 1, characterized in that, The third temporary reinforcement conduction beam is vertically and fixedly connected to the first temporary reinforcement conduction beam and the second temporary reinforcement conduction beam, respectively. The fourth temporary reinforcement conduction beam is vertically and fixedly connected to the first temporary reinforcement conduction beam and the second temporary reinforcement conduction beam, respectively.

9. The reinforcement and transmission device for the attached support arm of the double-sided coal bunker unit boiler tower crane as described in claim 8, characterized in that, The third temporary reinforcing conduction beam is welded perpendicularly to the first and second temporary reinforcing conduction beams, and the fourth temporary reinforcing conduction beam is welded perpendicularly to the first and second temporary reinforcing conduction beams.

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