Novel cold box lifting lug
By designing an integrated cold box lifting lug and adopting a combined structure of columns, connectors and reinforcing ribs, the structural stability and connection firmness problems of traditional cold box lifting lugs are solved, and the safety, reliability and space saving of the lifting process are achieved.
Patent Information
- Application Number
- CN202422878698.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Traditional cold box lifting lugs have problems during the lifting process, such as insufficient structural stability, loose connections, limited load-bearing capacity, and large space occupation, which cannot meet the lifting needs of large cold boxes.
A new type of cold box lifting lug is designed, in which the cold box lifting lug and the cold box are made into an integrated structure. The column, the first connecting piece and the second connecting piece cooperate with each other to form a built-in lifting lug. Square tubes and reinforcing ribs are used to improve the structural strength and connection stability, and welding is used to ensure the firmness of the connection.
It achieves the safety, reliability and space saving of cold box lifting, improves the load-bearing capacity and connection stability of the lifting lugs, and ensures the safety and balance of the lifting process.
Smart Images
Figure CN223433132U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a lifting lug, and in particular to a new type of cold box lifting lug. Background Art
[0002] In air separation equipment, the weight of the cold box after assembly is very large, usually dozens or even hundreds of tons. Therefore, when installing the equipment, the lifting process of the cold box is very difficult. For the lifting work, the lifting lugs play a vital role.
[0003] Traditional cold box lifting lugs are typically installed as add-on components on cold boxes. However, in actual use, these lugs have been found to have numerous shortcomings. For example, they lack structural stability and are prone to deformation during lifting, compromising safety. The connection between the lugs and the cold box is not secure enough, making them prone to loosening. The lugs also have limited load-bearing capacity, and most existing lugs are externally attached to the four corners of the cold box, making them prone to collisions with the upper cold box. Furthermore, they do not save on stacking costs and are unable to meet the lifting requirements of large cold boxes. Utility Model Content
[0004] In view of this, in order to further solve these problems, the main purpose of this application is to provide a new type of cold box lifting eye, which integrates the cold box lifting eye and the cold box into one piece, making the cold box lifting safer and more reliable, and saving more placement space.
[0005] The technical solution adopted in this application is as follows: a new type of cold box lifting lug, comprising a column, a first connecting member, and a second connecting member; the end of the column is connected to a first rod and a second rod at the same time, and the two ends of the first connecting member are respectively connected to the inner sides of the first rod and the second rod; the second connecting member is mirror-imaged and arranged on both sides of the column, with one end of the second connecting member connected to the first rod / the second rod, and the other end of the second connecting member connected to the column;
[0006] A first hanging hole is formed between the first connecting member, the first rod body and the second rod body;
[0007] Two corresponding second hanging holes are formed between the two second connecting members and the first rod body / second rod body and the column;
[0008] The first hanging hole is communicated with the second hanging hole.
[0009] Furthermore, the first rod body and the second rod body are perpendicularly connected to each other at the ends of the column.
[0010] Furthermore, the first connecting member includes two first square tubes, the two first square tubes are connected, and the connection angle between the two first square tubes is 90 degrees.
[0011] Further, the second connecting piece comprises two second square tubes, the two second square tubes are connected, and the included angle of the connection of the two second square tubes is 120 degrees.
[0012] Further, the inner side of the connection of the two first square tubes is paved with a fixed plate.
[0013] Further, the inner side of the connection of the two second square tubes is paved with a fixed plate.
[0014] Further, characterized in that a reinforcing rib is connected to the side of the connection of the two second square tubes.
[0015] Compared with the prior art, the application has the beneficial effects: through the cooperation and connection of the first connecting piece, the second connecting piece, the stand and the two rod bodies, the built-in lifting lugs are formed at the four corners of the cold box, which can achieve the purposes of convenient lifting and saving space. BRIEF DESCRIPTION OF DRAWINGS
[0016] The following drawings only schematically illustrate and explain the application, and do not serve to limit the scope of the application, in which:
[0017] Fig. 1 is a three-dimensional schematic view of the application;
[0018] Fig. 2 is an application schematic view of the application.
[0019] Significant reference signs: 100-stand; 200-first connecting piece; 201-first square tube; 300-second connecting piece; 301-second square tube; 400-first rod body; 500-second rod body; 600-first lifting hole; 700-second lifting hole; 800-reinforcing rib. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme, design method and advantages of the application more clear and obvious, the application is further described in detail below by combining with the drawings through specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and do not serve to limit the application.
[0021] Reference Figs. 1-2The application provides a novel cold box lifting lug, which comprises a stand 100, a first connecting piece 200 and a second connecting piece 300; the end of the stand 100 is connected with a first rod body 400 and a second rod body 500, the two ends of the first connecting piece 200 are connected to the inner sides of the first rod body 400 and the second rod body 500 respectively; the second connecting piece 300 is mirror-imaged arranged on the two sides of the stand 100, and one end of the second connecting piece 300 is connected with the first rod body 400 / second rod body 500, and the other end of the second connecting piece 300 is connected with the stand 100.
[0022] The first connecting piece 200, the first rod body 400 and the second rod body 500 form a first lifting hole 600.
[0023] The two second connecting pieces 300, the first rod body 400 / second rod body 500 and the stand 100 form two corresponding second lifting holes 700.
[0024] The first lifting hole 600 and the second lifting hole 700 are communicated.
[0025] In the above, the first connecting piece 200 and the second connecting piece 300 are connected with the stand 100 and the two rod bodies to form built-in lifting lugs at the four corners of the cold box, so that the cold box can be conveniently hoisted and the placement space is saved.
[0026] Reference Figs. 1-2 The first rod body 400 and the second rod body 500 are connected with each other perpendicularly at the end of the stand 100, and the two rod bodies can be rod bodies on the cold box body.
[0027] Reference Figs. 1-2 The first connecting piece 200 comprises two first square tubes 201, the two first square tubes 201 are connected, and the connection included angle of the two first square tubes 201 is 90 degrees.
[0028] Reference Figs. 1-2 The second connecting piece 300 comprises two second square tubes 301, the two second square tubes 301 are connected, and the connection included angle of the two second square tubes 301 is 120 degrees.
[0029] Reference Figs. 1-2 The connection inner side of the two first square tubes 201 is paved with a fixed plate.
[0030] Reference Figs. 1-2The present application provides a new type of cold box lifting lug, in which a fixing plate is laid on the inner side of the connection between the two second square tubes 301.
[0031] In the above two implementations, by laying a fixing plate on the inner side of the connection of the square tube, the two hanging holes can be formed into a built-in hanging hole with three openings. The fixing plate can be a steel plate; welding the steel plate close to the inner side of the square tube can ensure that rainwater flows directly along the outer edge of the square tube without causing water accumulation.
[0032] In the above embodiment, the cold box lifting lugs are made of square tubes, which improves the structural strength, load-bearing capacity and connection stability of the lifting lugs, ensuring the safety and reliability of the cold box lifting process; the use of square tubes to make the cold box lifting lugs has better welding quality and a more firm and reliable connection between the lifting lugs and the cold box;
[0033] refer to Figs. 1-2 The present application provides a new type of cold box lifting lug, wherein the two second square tubes 301 are connected to the side with a reinforcing rib 800 to improve the stability of the lifting lug.
[0034] In the above, the upper surface of the first connecting member 200 is on the same surface as the upper surfaces of the two rods, and the 90-degree angle of the first connecting member 200 faces inward, and the hanging hole formed by the second connecting member 300, the two rods and the column faces inward.
[0035] In the above, two second square tubes 301 are cut with an oblique cut, and then spliced at an angle of 120 degrees, and the seams at the splicing are fully welded to form the second connecting piece 300; after two sets of the same second connecting pieces 300 are made, they are placed on the upper two adjacent sides of one of the columns 100 of the cold box, and the second connecting piece 300 is fully welded with the column 100 and the first rod body 400 / the second rod body 500 to form an irregular quadrilateral; two other first square tubes 201 are cut with an oblique cut, and then spliced at a 90-degree angle, and the seams at the splicing are fully welded. Full welding is performed to form the first connecting piece 200, which is then placed on the top surface of the same cold box column 100 and fully welded together with the column 100, the first rod body 400 / the second rod body 500 to form a square. The three quadrilaterals (the first lifting hole 600 and the second lifting hole 700) are interconnected, allowing the rope used for lifting to pass through them and bind the first rod body 400 and the second rod body 500 to achieve the purpose of lifting the cold box. The inner side of the lifting ear square tube group is paved with steel plates to ensure the integrity of the sealing of the cold box. In this way, a set of new cold box lifting ears is completed.
[0036] The same manufacturing procedure is used to assemble the same first connecting piece 200 and second connecting piece 300 at the other three upright columns 100 of the cold box, so that each cold box has a set of built-in integral lifting lugs at four top corners. After the cold box lifting lugs are manufactured, they will be properly surface treated to prevent corrosion and thus improve service life. The cold box contains four lifting lugs, which are arranged more symmetrically, so as to ensure the balance and stability of the cold box during hoisting.
[0037] Embodiments of the application have been described above, with the understanding that these descriptions are exemplary only, and are not intended to be exhaustive or to limit the scope of the embodiments disclosed. Many modifications and variations are possible in light of the above teachings. It is contemplated that implementations falling within the scope of the above-described embodiments will constitute modifications and variations. The selection of elements and / or configurations are made with a deliberate and specific intent, and that the placement of those elements is solely for purposes of best exemplifying the principles of the embodiments, practical application, or marketable improvements over the technology that was available as of the time that the embodiments were made.
Claims
1. A new type of cold box lifting lug, characterized in that: The invention comprises a column (100), a first connecting member (200) and a second connecting member (300); the end of the column (100) is connected to a first rod (400) and a second rod (500) at the same time, and the two ends of the first connecting member (200) are respectively connected to the inner sides of the first rod (400) and the second rod (500); the second connecting member (300) is mirror-imaged and arranged on both sides of the column (100), and one end of the second connecting member (300) is connected to the first rod (400) / the second rod (500), and the other end of the second connecting member (300) is connected to the column (100); A first hanging hole (600) is formed between the first connecting member (200), the first rod body (400), and the second rod body (500); Two corresponding second hanging holes (700) are formed between the two second connecting members (300), the first rod (400) / the second rod (500) and the column (100); The first hanging hole (600) is communicated with the second hanging hole (700).
2. A new type of cold box lifting lug according to claim 1, characterized in that: The first rod body (400) and the second rod body (500) are vertically connected to the ends of the column (100).
3. The new cold box lifting lug according to claim 1 is characterized in that: The first connecting member (200) comprises two first square tubes (201), the two first square tubes (201) are connected, and the connection angle between the two first square tubes (201) is 90 degrees.
4. The new cold box lifting lug according to claim 1 is characterized in that: The second connecting member (300) comprises two second square tubes (301), the two second square tubes (301) are connected, and the connection angle between the two second square tubes (301) is 120 degrees.
5. The new cold box lifting lug according to claim 3 is characterized in that: A fixing plate is laid on the inner side of the connection between the two first square tubes (201).
6. The novel cold box lifting lug according to claim 4 is characterized in that: A fixing plate is laid on the inner side of the connection between the two second square tubes (301).
7. The novel cold box lifting lug according to claim 4 is characterized in that: A reinforcing rib (800) is connected to the side of the connection between the two second square tubes (301).