Special auxiliary tool for hoisting heat absorber steel structure of heat absorption tower

Abstract

The invention belongs to the technical field of construction of high-altitude steel structures outside towers, and provides a special auxiliary tool for hoisting a steel structure of a heat absorber of a heat absorption tower, which comprises six layers of working platforms, the working platforms are arc-shaped, and platform connecting support rods are welded with two sides of each layer of working platform. The six layers of working platforms are connected into a whole; an upper hanging support is welded to the top end of the first-layer operation platform, an internal supporting vertical rod and an external supporting vertical rod are welded to the bottom of the upper hanging support, the internal supporting vertical rod is welded to the inner side of the sixth-layer operation platform, and the external supporting vertical rod is welded to the outer side of the sixth-layer operation platform. According to the special auxiliary tool, multiple workers can be allowed to work on the platform at the same time, steel beams between high-altitude heat absorber steel structures are synchronously installed, in addition, part of tools can be stored in the working platform area, and the installation efficiency of the steel structures is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-altitude steel structure construction outside a tower, and in particular relates to a special auxiliary tool for hoisting a heat absorber steel structure of a heat absorption tower. Background Art

[0002] Currently, in tower-type solar thermal power plants, the steel structure of the heat sink plays a crucial role in tower-type solar thermal power plants, serving as the support structure for the heat sink and the supporting framework for all equipment atop the tower. The heat sink steel structure is characterized by complex structural design, high design height, full exposure to air, and high operational safety risks. When the heat sink construction reaches the heat sink steel structure, completing this structure as soon as possible provides an early working surface for the installation of equipment within the tower, laying a solid foundation for subsequent equipment installation. Therefore, ensuring high-quality, safe, and efficient construction of the heat sink steel structure is of great significance.

[0003] Currently, there is not much basis for the hoisting of the steel structure of the heat absorber of the tower-type solar thermal power station. In addition, the steel structure of the heat absorber of the heat absorber of the Red Stone solar thermal project in South Africa is more special than that of other projects. Therefore, it is urgent to develop a new type of special auxiliary tooling suitable for the current environment to meet the construction needs of this project. Summary of the Invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a special auxiliary tooling for hoisting the steel structure of the heat absorber of the heat absorption tower. The auxiliary tooling is easy to install and disassemble, provides a safe working space for hoisting the steel structure of the heat absorber, and improves construction efficiency.

[0005] The present invention adopts the following technical solutions.

[0006] A dedicated auxiliary tool for hoisting a heat absorption tower absorber steel structure includes a work platform. The work platform is arc-shaped, and the platform connecting support rods are welded to both sides of each work platform to connect the six work platforms into a whole. The top of the first work platform is welded to an upper suspension bracket, and the bottom of the upper suspension bracket is welded to internal and external support poles. The internal support poles are welded to the inner sides of the six work platforms, and the external support poles are welded to the outer sides of the six work platforms.

[0007] The special auxiliary tooling for hoisting the heat absorption tower absorber steel structure also includes internal support beams. The internal support beams have a total of three layers. The internal support beams are arranged horizontally, and the upper and lower spacing dimensions are designed according to the external dimensions of the heat absorption steel structure. The internal support beams are welded to the internal support rods; the internal support beams are connected to the clamp structure, thereby fixing the special auxiliary tooling to the upper steel structure hoisting unit of the heat absorption tower.

[0008] Furthermore, the working platform is welded together by a platform frame, internal platform supports and safety fences, a platform skirting board is welded on the outside of the bottom of the working platform, and the working platform is paved with patterned steel plates to facilitate personnel to enter and work.

[0009] Furthermore, the special auxiliary tooling for hoisting the heat absorption tower absorber steel structure is also provided with a ladder, with a total of 5 ladders running through the 6-layer working platform from top to bottom.

[0010] Furthermore, a ladder manhole door is provided on the working platform, and the ladder manhole door adopts a flip hinge design, and its position corresponds to the position of the ladder.

[0011] Furthermore, the upper suspension bracket includes a supporting cross bar, a horizontal connecting plate, an intermediate connecting beam and high-strength bolts. There are two groups of supporting cross bars, which are welded in an eight-shaped shape at both ends of the intermediate connecting beam. One end of the supporting cross bar is welded to the horizontal connecting plate, and the horizontal connecting plate is connected to the high-strength bolts, thereby fixing the auxiliary tooling to the top of the upper structure of the heat absorption tower.

[0012] Furthermore, the internal support poles are made of H-shaped steel, the external support poles are made of channel steel, and the working platform body is made of angle steel.

[0013] Furthermore, the outside and bottom of the special auxiliary tooling for hoisting the heat absorption tower absorber steel structure are installed with a wire mesh and a safety net.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The design of the specialized auxiliary tooling for hoisting the heat sink's steel structure fully considers the difficulties of heat sink steel structure construction, namely, high installation height, high safety risks, tight installation schedule, and high precision requirements. Through in-depth analysis of the steel structure design drawings, a universal and interchangeable design was adopted. This design structure can meet the installation requirements of the heat sink's upper three-layer steel structure. Once manufactured, it can be reused multiple times, making it highly practical and applicable to a wide range of operations.

[0016] 2. By designing a multi-layer work platform inside the special auxiliary tooling, multiple workers can work on the platform at the same time and simultaneously install the steel beams between the steel structures of the high-altitude heat absorber. In addition, some tools can be stored in the work platform area, which greatly improves the installation efficiency of the steel structure.

[0017] 3. By designing multi-layer straight ladders between the platforms inside the special auxiliary tooling, workers can enter the working platform on another layer from the upper part of one working platform to carry out work, which greatly improves the convenience of using the special auxiliary tooling and further improves the installation efficiency of the steel structure.

[0018] 4. The upper suspension bracket of the dedicated auxiliary tooling fully integrates the design of the top of the structural column of each floor of the heat absorption tower steel structure. It uses multiple sets of high-strength bolts to connect, which not only ensures the reliability of the tooling fixation, but also ensures that it can be quickly dismantled after the single-layer steel structure is completed. This improves the efficiency of steel structure construction and saves construction time.

[0019] 5. By setting up double safety protection measures of safety net and wire mesh around the special auxiliary tooling, the possibility of falling from height and falling objects from height is effectively avoided, and the safety of the use of special auxiliary tooling is greatly improved.

[0020] 6. Special auxiliary tooling can be used under conditions of different heights and different outer diameters of the heat absorption tower absorber steel structure, and can be extended to the construction of other similar high-altitude steel structures. It has strong applicability and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber provided by the present invention;

[0022] Figure 2 This is a top view of the auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber provided by the present invention;

[0023] Figure 3 yes Figure 2 Schematic diagram of the section along AA;

[0024] Figure 4 This is a schematic diagram of the upper suspension bracket structure provided by the present invention;

[0025] Figure 5 yes Figure 4 Schematic diagram of section along BB;

[0026] Figure 6 This is a schematic diagram of the working platform structure provided by the present invention Figure 1 ;

[0027] Figure 7 This is a schematic diagram of the working platform structure provided by the present invention Figure 2 ;

[0028] Figure 8 This is a schematic diagram of the auxiliary tooling structure for hoisting the steel structure of the heat absorption tower absorber provided by the present invention;

[0029] Figure 9 This is a schematic diagram of the special auxiliary tooling for hoisting the steel structure of the heat absorption tower and the first layer of the upper steel structure of the heat absorption tower provided by the present invention;

[0030] Figure 10 It is a schematic diagram of the steel structure layout and hoisting scheme of the heat absorption tower absorber provided by the present invention.

[0031] In the figure: 1-working platform, 101-platform frame, 102-platform internal support, 2-safety fence, 3-platform skirting board, 4-platform connecting support rod, 5-upper suspension bracket, 501-middle connecting beam, 502-support cross bar, 503-horizontal connecting plate, 504-high-strength bolts, 6-internal support vertical pole, 7-external support vertical pole, 8-internal support beam, 9-ladder, 10-ladder manhole door, 11-checkered steel plate, 12-wire mesh and safety net, 13-60T tower crane, 14-tower crane hook, 15-lifting lock, 16-first layer structure of the upper steel structure of the heat absorption tower, 17-hoop structure, 18-connecting steel beam, 19-decking. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figure 1 、 8 As shown, a dedicated auxiliary tooling for hoisting the steel structure of a heat absorption tower absorber comprises six arc-shaped work platforms 1. Platform connecting support rods 4 are welded to both sides of each work platform 1, connecting the six layers of work platforms 1 into a single unit. An upper suspension bracket 5 is welded to the top of the first work platform 1. Internal support rods 6 and external support rods 7 are welded to the bottom of the upper suspension bracket 5. Internal support rods 6 are welded to the inside of the six-layer work platform 1, while external support rods 7 are welded to the outside of the six-layer work platform 1. The arrangement of internal and external support rods 6 and 7 enhances the stability of the entire auxiliary tooling.

[0034] like Figure 6-7 As shown, the working platform 1 is welded together by a platform frame 101, a platform internal support 102 and a safety fence 2. A platform skirting board 3 is welded to the outside of the bottom of the working platform 1, and a patterned steel plate 11 is laid on the working platform 1 to facilitate personnel to enter and work.

[0035] like Figure 4-5 As shown, the upper suspension bracket 5 includes a supporting cross bar 502, a horizontal connecting plate 503, an intermediate connecting beam 501 and high-strength bolts 504. The number of the supporting cross bars 502 is two groups, which are welded in an eight-shaped shape at both ends of the intermediate connecting beam 501. One end of the supporting cross bar 502 is welded to the horizontal connecting plate 503, and the horizontal connecting plate 503 is connected to the high-strength bolts 504, thereby fixing the auxiliary tooling on the top of the upper structure of the heat absorption tower.

[0036] The auxiliary fixture provided by the present invention also includes three layers of internal support beams 8, arranged horizontally. The upper and lower spacing of the beams is designed based on the outer dimensions of the heat sink's steel structure. The beams 8 are welded to the internal support rods 6 to provide structural reinforcement and support. The beams 8 are connected to a hoop structure 17, securing the specialized auxiliary fixture to the upper steel structure hoisting unit of the heat sink.

[0037] The auxiliary tooling provided by the present invention is further provided with a ladder 9, with a total of 5 ladders 9 running through the 6-layer working platform 1 from top to bottom. Figure 2 As shown, a ladder manhole door 10 is provided on the working platform 1, and its position corresponds to the position of the ladder 9. It adopts a flip hinge design and can be flipped and reset after people enter and exit, thereby ensuring the integrity of the working platform.

[0038] The internal support poles 6 are made of H-shaped steel, the external support poles 7 are made of channel steel, and the main body of the working platform 1 is made of angle steel welded together. Figure 3 As shown, the outside and bottom of the auxiliary tooling body are installed with a wire mesh and a safety net 12.

[0039] The design dimensions of the auxiliary tooling main structure are consistent with the installed heat absorber steel structure, meeting the steel structure hoisting requirements.

[0040] According to the design of the three-layer structure of the upper steel structure of the heat absorption tower, this embodiment is the application of the special auxiliary tooling and the hoisting of the first layer structure 16 of the upper steel structure of the heat absorption tower. The same principle applies when hoisting the second and third layers. Figure 9 As shown, before installing the upper angled tube hoisting unit for the heat absorption tower, a dedicated auxiliary fixture must be separately suspended from the hoisting unit using a truck crane and secured at the top of the structure using high-strength bolts 504. Additionally, six sets of clamp structures 17 are used to secure the dedicated auxiliary fixture to the hoisting unit to prevent it from shaking during use.

[0041] When hoisting the upper steel structure of the heat absorption tower, specialized auxiliary tooling is used to install the connecting steel beams 18 between each hoisting unit, totaling eight sets of tooling. However, in actual use, it is not necessary to equip each set of specialized auxiliary tooling with a through-going ladder 9. Only two symmetrical sets of specialized auxiliary tooling need through-going ladders 9. Workers can access the various platforms from the tooling equipped with ladders 9 to perform installation work, which meets actual usage requirements.

[0042] like Figure 10As shown, the upper steel structure of the heat absorption tower is designed with a total of 16 axes. Before hoisting, every two axes are combined into a hoisting unit in advance in the ground formwork, and each layer has a total of 8 hoisting units. After each hoisting unit is hoisted into place with special auxiliary tooling, personnel enter the special auxiliary tooling platform, connect the connecting steel beams 18 between the hoisting units and adjust the overall structure, and then tighten the structural bolts. In actual use, a total of 8 sets of special auxiliary tooling need to be made, and they need to be fixed on the ground and hoisted into place with the 8 hoisting units. The specific hoisting sequence is as follows: Figure 6 shown.

[0043] In order to facilitate the smooth high-altitude placement of the hoisting structure, installation gaps are designed between the special auxiliary tooling and the special auxiliary tooling. When all the special auxiliary tooling is hoisted into place, the workers land on the working platform 1 on each floor from one of the special auxiliary tooling with a ladder 9, complete the connecting planks 19 between the special auxiliary tooling, and package them to form a continuous and safe working platform.

[0044] The method for using the special auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber of the present invention includes: using a 60T tower crane 13 to hoist the first hoisting unit and the special auxiliary tooling into place, connecting the anchor bolts at the bottom of the hoisting unit and pulling the cable rope. Afterwards, the operator can enter the platform of each layer of the special auxiliary tooling from the bottom platform of the special auxiliary tooling through the ladder 9 to unhook the hook rope and prepare to install the connecting steel beam 18 between the next hoisting units. Afterwards, according to the hoisting scheme diagram, the 60T tower crane 13 is used to continue hoisting the second to eighth hoists, connecting the connecting steel beams 18 between the hoisting units, until the steel structure of this layer forms a complete circle of stable structure, and then the structural installation accuracy is adjusted and the connecting bolts are tightened.

[0045] The specialized auxiliary tooling is designed to weigh 3,100 kg, with a maximum load of 1,000 kg per platform. Each platform can safely support four workers carrying some construction equipment. ANSYS finite element analysis confirmed that the tooling fully meets safety load requirements.

[0046] The auxiliary tooling for hoisting the heat absorber steel structure of the heat absorption tower of the present invention adopts an arc-shaped structural design, so that the auxiliary tooling can effectively fit the heat absorber steel structure and is fixed to the top of each section of the heat absorber steel structure with high-strength bolts, providing a safe and complete working space for the hoisting of the heat absorber steel structure. At the same time, the auxiliary tooling can be hoisted into place synchronously with the heat absorber steel structure hoisting unit assembled on the ground. All steel beams between different hoisting units of the same section of the heat absorber steel structure can be installed in one place, thereby reducing the difficulty of operation and improving the hoisting efficiency of the heat absorber steel structure. The auxiliary tooling is designed to adapt to the size of the heat absorber steel structure and can be recycled repeatedly, greatly improving the safety and efficiency of the hoisting of the heat absorber steel structure of the heat absorption tower.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A special auxiliary tool for hoisting the steel structure of a heat absorption tower absorber, comprising a working platform (1), characterized in that: The auxiliary tooling for hoisting the heat absorption tower absorber steel structure has a total of 6 layers of working platforms (1), the working platforms (1) are in an arc shape, and the platform connecting support rods (4) are welded to both sides of each layer of the working platform (1), so that the 6 layers of working platforms (1) are connected into a whole; the top of the first layer of the working platform (1) is welded with an upper suspension bracket (5), the bottom of the upper suspension bracket (5) is welded with an internal support vertical rod (6) and an external support vertical rod (7), the internal support vertical rod (6) is welded to the inner side of the 6 layers of the working platform (1), and the external support vertical rod (7) is welded to the outer side of the 6 layers of the working platform (1); The special auxiliary tooling for hoisting the heat absorber steel structure of the heat absorption tower further comprises an internal support beam (8), which has three layers in total. The internal support beams (8) are arranged horizontally, and the upper and lower spacing dimensions are designed according to the outer dimensions of the heat absorber steel structure. The internal support beams (8) are welded to the internal support rods (6); the internal support beams (8) are connected to the hoop structure (17), thereby fixing the special auxiliary tooling to the upper steel structure hoisting unit of the heat absorption tower.

2. The auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber according to claim 1 is characterized by: The working platform (1) is welded together by a platform frame (101), a platform internal support (102) and a safety fence (2). A platform skirting board (3) is welded to the outside of the bottom of the working platform (1). The working platform (1) is paved with a patterned steel plate (11) to facilitate personnel to enter and work.

3. The auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber according to claim 1 is characterized by: The auxiliary tooling for hoisting the heat absorption tower absorber steel structure is also provided with a ladder (9), and there are five ladders (9) in total, which pass through the six-layer working platform (1) from top to bottom.

4. The auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber according to claim 3 is characterized by: The work platform (1) is provided with a ladder manhole door (10), which adopts a flip hinge design and has a position corresponding to the position of the ladder (9).

5. The auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber according to claim 1 is characterized in that: The upper suspension bracket (5) includes a supporting crossbar (502), a horizontal connecting plate (503), an intermediate connecting beam (501) and high-strength bolts (504). The supporting crossbars (502) are in two groups and are welded to both ends of the intermediate connecting beam (501) in an eight-shaped pattern. One end of the supporting crossbar (502) is welded to the horizontal connecting plate (503), and the horizontal connecting plate (503) is connected to the high-strength bolts (504), thereby fixing the auxiliary tooling to the top of the upper structure of the heat absorption tower.

6. The auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber according to claim 1 is characterized by: The internal support poles (6) are made of H-shaped steel, the external support poles (7) are made of channel steel, and the main body of the working platform (1) is made of angle steel.

7. The auxiliary tooling for hoisting the steel structure of the heat absorption tower absorber according to claim 1 is characterized by: The exterior and bottom of the auxiliary tooling for hoisting the heat absorption tower absorber steel structure are installed with a wire mesh and a safety net (12).

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