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CN-121993356-A - Fan tower section of thick bamboo connecting device

CN121993356ACN 121993356 ACN121993356 ACN 121993356ACN-121993356-A

Abstract

The invention provides a fan tower connecting device, which belongs to the technical field of fan installation, and comprises a lower frame, wherein the lower frame is used for connecting a lower tower of a fan tower and an installation platform to support the fan tower, a plurality of locking mechanisms are arranged at the upper end of the lower frame, each locking mechanism comprises an inner locking block, an outer locking block, a locking key and a reversing structure, when the upper tower falls down, the reversing structure converts the downward motion of the inner locking block into the transverse motion of the outer locking block, and the locking key falls down by gravity and locks the inner locking block and the outer locking block. The connecting device is simple, efficient and reliable in operation, replaces the traditional bolt flange connecting structure, and solves the problems that the bolts are too many to cause easy seawater corrosion, the connecting structure is complex, the processing difficulty is high and the installation is time-consuming.

Inventors

  • CHEN JIARUI

Assignees

  • 中国石化工程建设有限公司
  • 中石化炼化工程（集团）股份有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (10)

  1. 1. A fan tower connection device, comprising: a lower frame (1) for connecting a lower tower section of the fan tower section (7) and a mounting platform (6) to support the fan tower section (7); The fan tower is characterized in that the fan tower is characterized by comprising a plurality of locking mechanisms (3), wherein the locking mechanisms (3) are arranged around the fan tower (7), each locking mechanism (3) comprises an inner locking block (32), an outer locking block (34), a locking key (36) and a reversing structure, the outer inner locking blocks (32) are in sliding connection with the lower frame (1), the inner locking blocks (32) are fixedly connected with the upper tower of the fan tower (7), one side of each outer locking block (34) is fixedly provided with a stepped limit (37), the stepped limit (37) is provided with a transverse limit surface and a longitudinal limit surface, the locking keys (36) are movably arranged above the transverse limit surface, and when the upper tower falls down, the reversing structure converts downward movement of the inner locking blocks (32) into transverse movement of the outer locking blocks (34) until the locking keys (36) fall into the range of the longitudinal limit surface and limit movement of the stepped limit (37).
  2. 2. The wind turbine tower attachment apparatus of claim 1, wherein the attachment apparatus further comprises: and the at least two groups of positioning mechanisms (4) are used for positioning and guiding the upper tower.
  3. 3. The fan tower connection device of claim 2, wherein, Each set of positioning means (4) comprises: the locating pin (41) is fixedly connected with the upper tower barrel or the lower tower barrel; The positioning cylinder (42) is fixedly connected with the upper tower cylinder or the lower tower cylinder; the locating pins (41) and the locating cylinders (42) are arranged in pairs, and when the upper tower cylinder falls, the locating pins (41) are inserted into the locating cylinders (42) to locate the upper tower cylinder.
  4. 4. A fan tower attachment apparatus as defined in claim 3, wherein, The connecting device further comprises an upper frame (2), wherein the upper frame (2) is used for connecting the upper tower barrel and is arranged opposite to the lower frame (1), and the positioning mechanism (4) is arranged on the upper frame (2) and the lower frame (1).
  5. 5. A fan tower connection device according to claim 3, wherein, The inlet of the positioning cylinder (42) is in a bell-mouth shape.
  6. 6. The fan tower attachment apparatus of claim 4 wherein, The connecting device further comprises at least three lifting mechanisms (5), wherein at least three lifting mechanisms (5) are arranged around the fan tower (7); the upper frame (2) is provided with a plurality of mounting parts (22) for mounting the fixed ends of the lifting mechanisms (5), or a bearing part (13) for bearing the lifting ends (51) of the lifting mechanisms (5); the lower frame (1) is provided with a plurality of mounting parts (22) for mounting the fixed ends of the lifting mechanisms (5), or a bearing part (13) for bearing the lifting ends (51) of the lifting mechanisms (5); the mounting part (22) and the bearing part (13) are arranged in pairs, and the fixed ends of at least three lifting mechanisms (5) are mounted on the mounting part (22).
  7. 7. The fan tower attachment device of claim 1 wherein, The reversing structure comprises: An inclined slider (33) provided to the inner lock block (32); and the inclined sliding groove (35) is arranged on the external locking block (34) and is matched with the inclined sliding block (33).
  8. 8. The fan tower connection device according to claim 1, wherein the locking mechanism (3) further comprises: The locking shell (31), locking shell (31) with lower part frame (1) fixed connection, inside be provided with outside latch segment (34) first spout that matches, outside latch segment (34) set up in the first spout, outside latch segment (34) can follow first spout lateral sliding, locking shell (31) inside be provided with the second spout, locking key (36) set up in the second spout and can follow second spout longitudinal sliding.
  9. 9. The fan tower attachment device of claim 8 wherein, An indication rod (38) is fixedly connected to the upper end of the locking key (36), and the indication rod (38) is used for indicating the position of the locking key (36).
  10. 10. Fan tower connection according to claim 1, characterized in that the lower frame (1) comprises: the lower hoop (11) is used for connecting the lower tower barrel; The support leg blocks (12) are fixedly connected with the lower anchor ear (11) and are used for connecting the mounting platform (6) and supporting the fan tower drum (7).

Description

Fan tower section of thick bamboo connecting device Technical Field The invention belongs to the technical field of fan installation, and particularly relates to a fan tower connecting device. Background Wind energy is used as a pollution-free renewable energy source, has the advantages of easy development, rich resources and the like, stands out from a plurality of clean energy sources, and is more and more valued by various countries. In order to better develop offshore wind power, it is required to reduce installation costs of the offshore wind turbine and to ensure reliable operation of the offshore wind turbine. The existing main offshore wind turbine installation method is split installation and integral installation, and the two installation modes are not separated from a complex hoisting process and bolt flange connection, so that the offshore wind turbine installation difficulty is high, the time consumption is long, and the operation cost is high. Moreover, the strength of the connecting bolt is damaged due to the corrosion of seawater and other factors, the later maintenance of the bolt is difficult, and accidents such as fan collapse and the like are easy to occur. The invention discloses a non-welded connection structure of a fan tower platform, which is disclosed in China patent publication No. CN109931225A, and adopts a suspended platform structure, and comprises a plurality of groups of suspended components and anti-swing support components, wherein the suspended components are distributed along the circumferential direction of the tower platform, the anti-swing components are distributed along the circumferential direction of the tower platform, the suspended components are composed of suspended screws, a welding bearing plate, a lower lock nut and an upper lock nut, the inner end surface of a tower flange of the fan tower is provided with threaded holes in threaded connection with the suspended screws, two ends of the suspended screws are respectively provided with threads, one end threads are matched and connected with the threaded holes in the inner end surface of the tower flange, the upper lock nut is used for fastening, the welding bearing plate is connected with the other end of the suspended screws in a welded manner so as to realize maintenance-free whole life cycle, the tower platform is placed on the welding bearing plate, the platform is pressed by the welding bearing plate, the lower lock nut is used for preventing the platform from loosening, the anti-swing support components are composed of a support, a rubber pad and the lock nut, the support is welded at the edge position of the tower platform, one end of the support screw is provided with threads, the other end surface of the support screw is provided with the threaded holes in threaded connection with the inner end surface of the tower flange, the threaded holes in threaded connection with the threaded holes, the threaded connection is used for supporting the support screw is completely through the adjustment of the support screw, and the support screw is fixed on the support flange through the support flange, and the support flange is completely extends through the support nut. The suspension assembly is connected between two adjacent connecting bolts of the tower flange, so that the influence of the additional holes of the flange on the strength weakening of the tower flange is eliminated, and interference can be prevented. And one end of the suspension screw, which is connected with the welding bearing plate, is used for preventing the threads from being damaged during welding, is processed into a stepped shaft form, and is welded at the back of the threads. The support is of a U-shaped structure. And processing the threaded holes on the inner end surface of the tower flange into through holes or blind holes. The connecting structure in the prior art is easy to damage the strength of the connecting bolt due to too many connecting bolts and seawater corrosion, the later maintenance of the bolts is difficult, accidents such as fan collapse and the like are easy to occur, and the number of required parts such as the bolts is too many, so that the connecting structure is complex, the processing difficulty is high, and the required working time is too long during installation. Disclosure of Invention The invention aims to provide a fan tower connecting device, which solves the problems that in the prior art, too many bolts of a connecting structure are easy to corrode seawater and the connecting structure is complex. In order to achieve the above object, in a first aspect, the present invention provides a fan tower connection device, including: the lower frame is used for connecting a lower section tower barrel of the fan tower barrel and the mounting platform to support the fan tower barrel; The locking mechanism comprises an inner locking block, an outer locking block, a locking key and a reversing structure, wherein the