Device for opening top maintenance hole of large-diameter tower

Abstract

The utility model discloses a device for opening a top maintenance hole of a large-diameter tower. The device comprises a suspension arm, the length direction of which is parallel to a horizontal line; the lifting column is welded to one end of the lifting arm and is provided with a hollow inner cavity; one end of the supporting piece is welded below the lifting arm, and the other end is welded to the side surface of the lifting column; the top cover is positioned at the top of the davit; the sliding piece is hung below the suspension arm; the chain block is arranged below the sliding piece; one end of the first support lug plate is propped against a flange of the top maintenance hole; the first sleeve surrounds the davit and is welded on the first support lug plate; the top plate is located at the bottom of the davit; the thimble is positioned in the center of the top plate; the second sleeve is located in the inner cavity of the hanging column; the second support lug plate is positioned below the second sleeve; and the third support lug plate is positioned below the second support lug plate. According to the device, the maintenance hole of the tower can be quickly opened, and smooth filling and stable use of the tower are ensured.

Description

Technical Field

[0001] The present application generally relates to the technical field of large-diameter tower maintenance, and in particular to a device for opening a top maintenance hole of a large-diameter tower. Background Art

[0002] Now with the rapid development of my country's national economy, chemical products have been applied to all aspects of people's lives. Due to the wide variety and complexity of chemical products, pressure vessels, as the basic equipment for the production of chemical products, often need to use different manufacturing processes to meet product needs according to different products.

[0003] As a conventional pressure vessel, towers often face the difficulty of loading fillers and lifting tower internals. Moreover, with the development and progress of society, the functions of a single tower are becoming more and more complex, and the diameter is getting larger and larger, which leads to the increase in the maintenance holes required for the towers, and the increase in the weight of the maintenance holes makes it more difficult to open. As the inlet of the top fillers and internals of the tower, although the existing hanging columns can meet the simple lifting requirements, as the diameter increases, the required lifting weight also increases. The existing single hanging column is more laborious and it is difficult to carry out a series of heavy objects for a long time. If you are not careful, the heavy objects will fall off at the least, and the equipment will be damaged at the worst.

[0004] Therefore, it is necessary to design a device for opening the top maintenance hole of a large-diameter tower to solve the problems raised in the above-mentioned prior art. The technical solution of the utility model ensures that the maintenance hole of the large-diameter tower can be quickly opened during the filling process, ensuring smooth filling and stable use of the tower. Utility Model Content

[0005] In view of the above technical problems, the present disclosure proposes a device for opening a top maintenance hole of a large-diameter tower, characterized in that it includes: a boom, the length direction of the boom is parallel to the horizontal line; a hanging column, the hanging column is welded to one end of the boom and has a hollow inner cavity; a support member, one end of the support member is welded to the bottom of the boom, and the other end of the support member is welded to the side of the hanging column for supporting the boom; a top cover, the top cover is located at the top of the hanging column; a sliding member, the sliding member is hung under the boom; a fall chain, the fall chain is arranged under the sliding member, and one end of the fall chain is connected to the bottom of the sliding member, and the other end is connected to the ear plate of the top maintenance hole; a first support ear plate, one end of the first support ear plate is against the flange of the top maintenance hole; a first sleeve , the first sleeve surrounds the suspension column and is welded to the first lug plate; a top plate, the top plate is located at the bottom of the suspension column, and the two ends of the top plate are respectively embedded in and welded to the two sides of the inner cavity of the suspension column; an ejector pin, the ejector pin is located in the center of the top plate and is welded to the top plate; a second sleeve, the second sleeve is located inside the inner cavity of the suspension column, and a gap is provided between the second sleeve and the suspension column so that the suspension column can rotate around the second sleeve; a second lug plate, the second lug plate is located below the second sleeve and is welded to the second sleeve; and a third lug plate, the third lug plate is located below the second lug plate and is welded to the second lug plate, and the third lug plate has an inclined bottom surface to abut against the side wall of the top maintenance hole.

[0006] In a preferred embodiment, the cross section of the boom is I-shaped.

[0007] In a preferred embodiment, the support member is a flat steel.

[0008] In a preferred embodiment, the support member forms an angle of 45 degrees with both the boom and the suspension column.

[0009] In a preferred embodiment, the sliding member is hung below the boom by angle steel and can slide along the length direction of the boom.

[0010] In a preferred embodiment, the length direction of the suspension column is perpendicular to the length direction of the suspension arm.

[0011] In a preferred embodiment, the inclined bottom surface of the third lug plate forms an angle of 45 degrees with the horizontal plane.

[0012] In a preferred embodiment, a first sealing ring is provided between the first sleeve and the suspension column for firmly assembling the first sleeve and the suspension column together.

[0013] In a preferred embodiment, a second sealing ring is provided between the second sleeve and the ejector pin for firmly assembling the second sleeve and the ejector pin together.

[0014] Compared with the prior art, the beneficial effects of the content of the present disclosure are: the technical solution of the utility model can ensure that the tower maintenance hole can be quickly opened during the tower filling process, ensuring smooth tower filling and stable use, and the technical solution of the utility model can be easily installed to achieve rapid filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The novel features of the present application are specifically described in the appended claims. The features and advantages of the present application will be better understood by referring to the following detailed description and drawings that describe illustrative embodiments in which the principles of the present application are utilized. The drawings are only used for the purpose of illustrating the embodiments and should not be considered as limiting the present application. Also, the same reference numerals are used throughout the drawings to represent the same elements. In the drawings:

[0016] Figure 1 A schematic diagram of a device for opening a top maintenance hole of a large-diameter tower according to an exemplary embodiment of the present disclosure is shown;

[0017] Figure 2 A side view showing a portion of an apparatus for opening a top maintenance hole of a large-diameter tower according to an exemplary embodiment of the present disclosure; and

[0018] Figure 3 A partially enlarged view of a device for opening a top maintenance hole of a large-diameter tower according to an exemplary embodiment of the present disclosure is shown.

[0019] Explanation of the reference numerals: 1- boom, 2- support member, 3- top cover, 4- sliding member, 5- fall chain, 6- ear plate, 7- hanging column, 8- first sealing ring, 9- first sleeve, 10- first ear plate, 11- ejector pin, 12- top plate, 13- second sleeve, 14- second sealing ring, 15- second ear plate, 16- third ear plate. DETAILED DESCRIPTION

[0020] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure, and to enable the scope of the present disclosure to be fully conveyed to those skilled in the art. Nothing in the following detailed description is intended to indicate that any particular component or feature is essential to the present application. Those skilled in the art will appreciate that various features can be substituted or combined with each other without departing from the scope of the present disclosure.

[0021] Figure 1A schematic diagram of a device for opening a top maintenance hole of a large-diameter tower according to an exemplary embodiment of the present disclosure is shown. In one embodiment, the present disclosure proposes a device for opening a top maintenance hole of a large-diameter tower, characterized in that it can include: a boom 1, the length direction of the boom 1 can be parallel to the horizontal line. In a preferred embodiment, the cross-section of the boom can be I-shaped. In a preferred embodiment, the boom 1 can be an I-beam. In other embodiments, the boom 1 can be any other component deemed appropriate by a person skilled in the art. The device can also include: a suspension column 7, which can be welded to one end of the boom 1 and has a hollow inner cavity; a support member 2, one end of the support member 2 can be welded to the bottom of the boom 1, and the other end of the support member 2 can be welded to the side of the suspension column 7, for supporting the boom 1. In a preferred embodiment, the support member 2 can be a flat steel. In a preferred embodiment, the length direction of the suspension column 7 can be perpendicular to the length direction of the boom 1. In a preferred embodiment, the support member 2 can be at a 45-degree angle to both the boom 1 and the suspension column 7. In other embodiments, the support member 2 may form any other angle with the boom 1 and the suspension column 7 that is deemed appropriate by a person skilled in the art. The device may also include: a top cover 3, which may be located on top of the suspension column 7; and a slide 4, which may be hung below the boom 1. In a preferred embodiment, the slide 4 may be hung below the boom 1 by an angle steel, and may slide along the length direction of the boom 1. In a preferred embodiment, the slide 4 may be a manual trolley, and the uppermost I-beam and the angle steel may cooperate to serve as a limit for the manual trolley and prevent it from sliding off. For example, a pair of angle steels may be used to form a hook to hang the slide 4 (i.e., the manual trolley) on the boom 1 (i.e., the I-beam). The device may further include: a fall chain 5 (also called a manual hoist), which may be arranged below the sliding member 4, and one end of the fall chain 5 is connected to the bottom of the sliding member 5, and the other end is connected to the ear plate 6 of the top maintenance hole; a first ear plate 10, one end of which may be against the flange of the top maintenance hole, such as Figure 1 As shown in part I.

[0022] Figure 2A side view of a portion of a device for opening a top maintenance hole of a large-diameter tower according to an exemplary embodiment of the present disclosure is shown. The device may also include: a first sleeve 9, which may surround the suspension column 7 and be welded to the first lug plate 10; a top plate 12, which may be located at the bottom of the suspension column 7, and the two ends of the top plate 12 are respectively embedded in and welded to the two sides of the inner cavity of the suspension column 7; an ejector pin 11, which may be located in the center of the top plate 12 and is welded to the top plate 12, as shown in FIG. Figure 2 As shown in Part II. Figure 3 A partial enlarged view of a device for opening a top maintenance hole of a large-diameter tower according to an exemplary embodiment of the present disclosure is shown. The device may also include: a second sleeve 13, the second sleeve 13 may be located inside the inner cavity of the sling 7, and a gap is provided between the second sleeve 13 and the sling 7, such as Figure 3 As shown, the suspending column 7 can rotate around the second sleeve 13, so that the maintenance worker can open the top maintenance hole of the large-diameter tower by pushing the sliding member 4 (i.e., the manual trolley) and rotating the suspending column 7. The device may also include: a second lug plate 15, which may be located below the second sleeve 13 and welded to the second sleeve 13; and a third lug plate 16, which may be located below the second lug plate 15 and welded to the second lug plate 15, and the third lug plate 16 has an inclined bottom surface to abut against the side wall of the top maintenance hole, as shown in FIG. Figure 1 As shown in part III of . In a preferred embodiment, the inclined bottom surface of the third lug plate 16 may be at a 45-degree angle to the horizontal plane. In other embodiments, the inclined bottom surface of the third lug plate 16 may be at any other angle deemed appropriate by a person skilled in the art to the horizontal plane. In a preferred embodiment, a first sealing ring 8 may be provided between the first sleeve 9 and the suspension column 7 for firmly assembling the first sleeve 9 and the suspension column 7 together. In a preferred embodiment, a second sealing ring 14 may be provided between the second sleeve 13 and the ejector pin 11 for firmly assembling the second sleeve 13 and the ejector pin 11 together to ensure smooth rotation of the device during the hoisting process. In one embodiment, an exhaust hole may also be provided on the top plate 12 for discharging air inside the device.

[0023] Compared with the prior art, the technical solution of the utility model adopts a triangular structure as a whole, which ensures the stability of the hoisting process and the smooth rotation of the whole device during the hoisting process. The technical solution reduces the labor cost of workers, and also ensures the safety, stability and timeliness of hoisting and packing maintenance. The technical solution of the utility model can realize the rapid opening of the tower maintenance hole during the tower packing process, thereby improving the efficiency of tower packing.

[0024] It should be understood that the systems in the various embodiments provided in the present invention may be combined, modified and / or changed to form new technical solutions. In the absence of creative work, these technical solutions should also be included in the scope of protection claimed by the present invention.

[0025] A large number of specific examples are provided in the embodiments provided herein, and it should be understood that these examples are only for the purpose of describing the embodiments of the present invention in detail and are not intended to limit the present invention. The embodiments of the present invention can be practiced without these specific examples. In some embodiments, structures and / or technologies known to those skilled in the art are not shown in detail so as not to obscure the understanding of the present invention.

[0026] Although preferred embodiments of the present invention have been shown and described herein, it is readily understood by those skilled in the art that these embodiments are provided by way of example only. Those skilled in the art will now think of various changes, modifications and substitutions without departing from the present invention. It should be understood that the various alternatives to the embodiments of the present invention described herein are optionally used to implement the present invention. It is intended to define the scope of the present invention by the claims, and thus cover structures and their equivalents within the scope of these claims.

Claims

1. A device for opening a top maintenance hole of a large diameter tower, characterized in that: include: A boom, wherein the length direction of the boom is parallel to the horizontal line; A suspension post, the suspension post is welded to one end of the suspension arm and has a hollow inner cavity; A support member, one end of which is welded to the bottom of the boom, and the other end of which is welded to the side of the suspension column, for supporting the boom; A top cover, the top cover being located on the top of the sling; A sliding member, the sliding member being hung below the boom; A fall chain, the fall chain is arranged below the sliding member, one end of the fall chain is connected to the bottom of the sliding member, and the other end of the fall chain is connected to the lifting lug plate of the top maintenance hole; a first lug plate, one end of which abuts against a flange of the top maintenance hole; a first sleeve, the first sleeve surrounding the suspension column and welded to the first lug plate; A top plate, the top plate is located at the bottom of the suspension column, and two ends of the top plate are respectively embedded in and welded to two sides of the inner cavity of the suspension column; An ejector pin, the ejector pin is located at the center of the ejector plate and is welded to the ejector plate; A second sleeve, wherein the second sleeve is located inside the inner cavity of the suspension column, and a gap is provided between the second sleeve and the suspension column, so that the suspension column can rotate around the second sleeve; a second lug plate, the second lug plate being located below the second sleeve and welded to the second sleeve; as well as The third lug plate is located below the second lug plate and is welded to the second lug plate. The third lug plate has an inclined bottom surface for abutting against the side wall of the top maintenance hole.

2. The device according to claim 1, characterized in that The cross section of the suspension arm is in an I-shape.

3. The device according to claim 1, characterized in that The support member is a flat steel.

4. The device according to claim 1, characterized in that The support member forms an angle of 45 degrees with the boom and the suspension column.

5. The device according to claim 1, characterized in that The sliding member is hung below the boom through angle steel and can slide along the length direction of the boom.

6. The device according to claim 1, characterized in that The length direction of the suspension column is perpendicular to the length direction of the suspension arm.

7. The device according to claim 1, characterized in that The inclined bottom surface of the third ear plate forms an angle of 45 degrees with the horizontal plane.

8. The device according to claim 1, characterized in that A first sealing ring is provided between the first sleeve and the suspension column for firmly assembling the first sleeve and the suspension column together.

9. The device according to claim 1, characterized in that A second sealing ring is provided between the second sleeve and the ejector pin, for firmly assembling the second sleeve and the ejector pin together.

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