Lifting and protecting device for large pressure vessel and heat exchanger

Abstract

The utility model discloses a hoisting and protecting device for a large pressure vessel and a heat exchanger. The device comprises a hoisting beam device which comprises two first hoisting beams which are arranged in parallel; the two second lifting beams are arranged in parallel and are respectively and vertically connected with the two first lifting beams to form a rectangular frame; the first hoisting rope device is respectively connected with the hoisting beam device and the hoisting connecting device; and the second lifting rope device is respectively connected with the bearing object and the lifting connecting device. The lifting and protecting device for the large pressure vessel and the heat exchanger is stable in structure, workers can lift and protect the large pressure vessel and the heat exchanger conveniently, the device can be repeatedly used, and the use cost can be reduced.

Description

Technical Field

[0001] The present application generally relates to the technical field of lifting and protecting pressure vessels and heat exchangers, and more specifically, to a lifting and protecting device for large pressure vessels and heat exchangers. Background Art

[0002] With the vigorous development of modern coal chemical industry and new hydrogen energy industries, the requirements for heat exchangers and various large pressure vessels in static equipment are getting higher and higher. The tonnage of equipment is gradually increasing, and the thickness of the external wall is gradually thinning while ensuring the practical performance of the product process. For example, large heat exchangers, reactors, large towers or jacketed equipment are all equipment with complex internal parts and thin external shell plates. For such thin-shell equipment such as heavy pressure vessels (jackets) and heat exchangers, technical lifting solutions and protection requirements are proposed in the use scenarios such as lifting and loading at the container manufacturing plant, intermediate transportation, and lifting and unloading at the user's site. This kind of situation is very common in manufacturing plants and construction sites. If the lifting process is carried out by lifting with a single guard plate, it will undoubtedly increase the manufacturing cost. In addition, the structural technical requirements of each equipment are different, and it is still unknown whether the guard plate can be added in practice. In addition, the recycling rate of the guard plate is greatly reduced after removal, and the material waste is serious.

[0003] Therefore, how to provide a lifting and protection device that is convenient for lifting, lowering, and moving large pressure vessels and heat exchangers, and is easy to install, tie, and protect, and easy to reuse is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0004] In view of this, the present application provides a lifting and protection device for large pressure vessels and heat exchangers, which is suitable for various large heat exchangers, jacketed containers, skirt-type pressure vessels, tower containers, round cylinders, and placed pressure vessels with special requirements, etc., especially suitable for large jacketed pressure vessels and thin-walled heat exchangers, so that workers can lift, lower, move and protect large pressure vessels and heat exchangers at any time. The device is low-cost, simple to operate, and suitable for equipment of various specifications.

[0005] To achieve the above-mentioned purpose, the present application provides a lifting and protection device, which includes: a lifting beam device, the lifting beam device includes: 2 first lifting beams, the 2 first lifting beams are placed in parallel; and 2 second lifting beams, the 2 second lifting beams are placed in parallel and are respectively vertically connected to the 2 first lifting beams to form a rectangular frame; a first lifting rope device, the first lifting rope device includes: 1 or more first steel wire ropes, 1 or more first steel wire ropes are respectively connected to the lifting beam device and the lifting connection device; and a second lifting rope device, the second lifting rope device includes: 1 or more second steel wire ropes, 1 or more second steel wire ropes are respectively connected to the load and the lifting connection device.

[0006] In one embodiment, the first lifting beam is also fixed with a slide groove, the number of the slide grooves is 2, and the two slide grooves are respectively fixed at the two ends of the first lifting beam.

[0007] In another embodiment, the second steel wire rope is connected to the load and the lifting connection device respectively through a slide groove.

[0008] In another embodiment, a lifting lug is fixed above the second lifting beam, the number of the lifting lugs is 2, and the two lifting lugs are respectively fixed at positions symmetrical with respect to the center point of the second lifting beam.

[0009] In yet another embodiment, the first steel wire rope is connected to the lifting beam device and the lifting connection device respectively through lifting ears.

[0010] In yet another embodiment, a swivel lifting ring is mounted on the lifting ear.

[0011] In yet another embodiment, the first steel wire rope is connected to the lifting beam device and the lifting connection device respectively through a rotating lifting ring.

[0012] In yet another embodiment, the lifting connection means comprises a lifting hook.

[0013] In yet another embodiment, bottom lifting rings are fixed to both ends of the second steel wire rope.

[0014] In another embodiment, pulleys are fixed below the first lifting beam, the number of the pulleys is 1 to 20, and the pulleys are respectively fixed at positions symmetrical with respect to the center point of the first lifting beam.

[0015] Compared with the prior art, the lifting and protection device provided by the present application has the following beneficial effects:

[0016] (1) The lifting and protection device provided in the present application can effectively protect the load during the lifting, lowering or moving process, wherein the presence of the lifting beam device and the slide groove makes the angle formed by the second wire rope during the lifting, lowering or moving process much larger than the angle when the load is deformed during these processes, and the distance between the contact point of the second wire rope and the large pressure vessel or heat exchanger can be adjusted by factors such as the length of the first lifting beam, the length of the slide groove and the length of the second wire rope itself, so as to determine the final distance that is infinitely close to the transverse diameter distance of the equipment, and ensure that the tangent line of the widest diameter of the equipment is subjected to vertical force as much as possible, thereby effectively avoiding the large pressure vessel and heat exchanger from being flattened, deformed or cracked due to excessive transverse force; and

[0017] (2) The lifting and protection devices provided in this application can be recycled and reused, which can effectively reduce the cost of lifting and transporting large pressure vessels and heat exchangers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present application, the implementation methods of the present application will be further illustrated and described based on the following drawings. These drawings are only used to more conveniently and specifically describe the implementation methods of the present application rather than to limit the present application.

[0019] Figure 1 It is a schematic side view of a lifting and protection device for a large pressure vessel and a heat exchanger provided according to an exemplary embodiment of the present application when lifting a load;

[0020] Figure 2 It is a schematic diagram of a front view of a lifting and protection device for a large pressure vessel and a heat exchanger provided according to an exemplary embodiment of the present application when lifting a load;

[0021] Figure 3 It is a schematic top view of a lifting beam device, a first lifting rope device and a second lifting rope device in a lifting and protection device for a large pressure vessel and a heat exchanger provided according to an exemplary embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of a front view of a lifting beam device in a lifting and protection device for a large pressure vessel and a heat exchanger provided according to an exemplary embodiment of the present application;

[0023] Figure 5 is a schematic side view of a lifting beam device in a lifting and protection device for a large pressure vessel and a heat exchanger provided according to an exemplary embodiment of the present application; and

[0024] Figure 6 It is a schematic side view of a lifting beam device, a first lifting rope device and a lifting connection device in a lifting and protection device for a large pressure vessel and a heat exchanger provided according to an exemplary embodiment of the present application.

[0025] In the figure: 1 is the first lifting beam, 2 is the second lifting beam, 3 is the lifting ear, 4 is the slide groove, 5 is the pulley, 6 is the hook, 7 is the first steel wire rope, 8 is the second steel wire rope, 9 is the rotating lifting ring, 10 is the load-bearing object, and 11 is the bottom lifting ring. DETAILED DESCRIPTION

[0026] As the scale of pressure vessel equipment continues to expand, the tonnage is gradually increasing, and more large pressure vessels and heat exchangers with thicker diameters, longer lengths and thinner walls are produced in response to demand. However, large pressure vessels and heat exchangers have problems such as being too heavy, difficult to access and easy to deform. In order to solve this difficulty, the present application provides a lifting and protection device for large pressure vessels and heat exchangers.

[0027] The specific embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. These embodiments are provided only as examples, and all other embodiments obtained by those skilled in the art without creative work are also within the scope of protection claimed by the present application.

[0028] refer to Figure 1-Figure 6 The present application provides a lifting and protection device, which includes: a lifting beam device, the lifting beam device includes: two first lifting beams 1, the two first lifting beams 1 are placed in parallel; and two second lifting beams 2, the two second lifting beams 2 are placed in parallel and are respectively vertically connected to the two first lifting beams 1 to form a rectangular frame; a first lifting rope device, the first lifting rope device includes: one or more first steel wire ropes 7, one or more first steel wire ropes 7 are respectively connected to the lifting beam device and the lifting connection device; and a second lifting rope device, the second lifting rope device includes: one or more second steel wire ropes 8, one or more second steel wire ropes 8 are respectively connected to the load 10 and the lifting connection device. Figure 3 As shown, two first lifting beams 1 are placed in parallel, and two second lifting beams 2 are placed in parallel and are respectively welded vertically to the two first lifting beams 1 to form a rectangular frame, wherein the first lifting beams 1 and the second lifting beams 2 are round steel pipes or square steel pipes. Figure 1 and Figure 2 As shown, two first steel wire ropes 7 connect the lifting beam device and the lifting connection device together. Two second steel wire ropes 8 connect the load 10 and the lifting connection device together, and are used to lift the load 10. It should be noted that the number of the first steel wire ropes 7 and the second steel wire ropes 8 can be determined according to the indexes such as the diameter, length, width, height or weight of the load 10 to be lifted. For example, as the diameter, length, width, height or weight of the load 10 increases, the number of the first steel wire ropes 7 and / or the second steel wire ropes 8 can be 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. The lifting and protection device uses two sets of lifting rope devices (the first lifting rope device and the second lifting rope device) to lift the lifting beam device and the load 10 to be lifted in sequence, so that the angle formed by the second steel wire ropes 8 during the lifting, lowering or moving process is much larger than the angle when the load 10 is deformed during these processes. Therefore, the lifting and protection device provided in the present application has a flexible and stable structure, which can effectively prevent large pressure vessels and heat exchangers (especially large jacketed pressure vessels and thin-walled heat exchangers) from being flattened, deformed or cracked due to excessive lateral force, making it convenient for workers to lift, lower or move large pressure vessels and heat exchangers, and the device can be reused many times, which is beneficial to reducing the cost of use.

[0029] In a preferred embodiment of the present application, the first lifting beam 1 is fixed with a slide groove 4, the number of the slide grooves 4 is two, and the two slide grooves 4 are respectively fixed at the two ends of the first lifting beam 1. Figures 1 to 6 As shown, two chutes 4 are respectively fixed to the sides of the two ends of the first lifting beam 1 by welding, wherein the length of the chutes 4 can be determined by those skilled in the art as appropriate, for example, 0.1 to 3.0 meters, specifically 0.1 meters, 0.2 meters, 0.3 meters, 0.4 meters, 0.5 meters, 0.6 meters, 0.7 meters, 0.8 meters, 0.9 meters, 1.0 meters, 1.2 meters, 1.5 meters, 1.7 meters, 2.0 meters, 2.2 meters, 2.5 meters, 2.7 meters or 3.0 meters, and its setting is intended to meet the function of the device to effectively lift and protect the load. Those skilled in the art will appreciate that conventional chutes 4 in the art can be applied to the present application, including but not limited to U-shaped chutes, V-shaped chutes and / or C-shaped chutes. In a preferred embodiment of the present application, the chutes 4 are preferably U-shaped chutes.

[0030] In a preferred embodiment of the present application, the second wire rope 8 is connected to the load 10 and the lifting connection device through the slide 4. Figure 1 and Figure 2 During the lifting process, the second steel wire rope 8 is placed in the slide 4 to connect the load 10 and the lifting connection device together, and the length of the slide 4 can be adjusted so that the angle formed by the second steel wire rope 8 during the lifting, lowering or moving process is much larger than the angle when the load is deformed during these processes, thereby effectively avoiding the equipment being flattened, deformed or cracked due to excessive lateral force on large pressure vessels and heat exchangers.

[0031] In a preferred embodiment of the present application, a lifting lug 3 is fixed above the second lifting beam 2, and the number of the lifting lugs 3 is 2, and the two lifting lugs 3 are respectively fixed at positions symmetrical about the center point of the second lifting beam 2. Figures 1 to 6 As shown, two lifting ears 3 are welded on the top of each second lifting beam 2 , and the fixing positions of the two lifting ears 3 are symmetrical about the center point of the second lifting beam 2 .

[0032] In a preferred embodiment of the present application, the first steel wire rope 7 is connected to the lifting beam device and the lifting connection device through the lifting lug 3. Figures 1 to 6 As shown, by setting the lifting lug 3, the lifting lug 3 connects the lifting beam device and the lifting connection device together through the first steel wire rope 7, and the lifting tension is transmitted through the main body of the lifting lug 3, rather than only the second lifting beam 2 bearing the lifting tension, so as to avoid the lifting tension from damaging the structure of the lifting beam device. In addition, those skilled in the art can understand that all common mounting parts in the art that can achieve the above purpose can be applied here, and are not limited to the lifting lug.

[0033] In a preferred embodiment of the present application, a rotating lifting ring 9 is installed on the lifting lug 3. Figure 4 As shown, a rotating lifting ring 9 of appropriate specifications is installed on each lifting lug 3, and the rotating lifting ring 9 can be selected according to the lifting task and the specifications of the load. In a preferred embodiment of the present application, the rotating lifting ring 9 is a U-shaped lifting ring.

[0034] In a preferred embodiment of the present application, the first wire rope 7 is connected to the lifting beam device and the lifting connection device through a rotating lifting ring 9. Figure 6 As shown, the first steel wire rope 7 connects the lifting beam device and the lifting connection device together through the rotating lifting ring 9 to lift the lifting beam device.

[0035] In a preferred embodiment of the present application, the lifting connection device is a lifting hook 6 .

[0036] In a preferred embodiment of the present application, bottom lifting rings 11 are fixed at both ends of the second steel wire rope 8. The bottom lifting ring 11 and the second steel wire rope 8 cooperate with the load 10 to find the center and the center of gravity, and then the load 10 and the second steel wire rope 8 are locked through the bottom lifting ring 11, and the load 10 can be lifted after locking. In a preferred embodiment of the present application, the bottom lifting ring (11) is a balance lifting ring.

[0037] In a preferred embodiment of the present application, a pulley 5 is fixed below the first lifting beam 1, the number of the pulleys 5 is 1 to 20, and the pulleys 5 are respectively fixed at positions symmetrical about the center point of the first lifting beam 1. In the present application, the pulley 5 is mainly used for moving the lifting and protection device, for example, before or after lifting, the lifting and protection device is moved to a specified position for easy use. Those skilled in the art can set the number of pulleys 5 according to requirements, and the number of pulleys 5 can be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20, and the size of the pulley 5 can also be adjusted according to requirements.

[0038] Those skilled in the art can understand that the connection of various components is intended to stabilize the structure of the device, and therefore, conventional fixing methods in the art can be applied to the present application.

[0039] Aiming at various large heat exchangers, jacketed vessels, skirt pressure vessels, tower vessels, round cylinders and placed pressure vessels with special requirements, especially large jacketed pressure vessels and thin-walled heat exchangers and other equipment that are difficult to lift and protect, the lifting and protection device for large pressure vessels and heat exchangers provided by this application is designed and manufactured. In a preferred embodiment provided by this application, the specific design and working principle of the lifting and protection device are as follows: the first lifting beam 1 and the chute 4 are welded together, the second lifting beam 2 and the lifting lug 3 are welded together, and then the first lifting beam 1 and the second lifting beam 2 are welded firmly at both ends, and finally the pulley 5 at the bottom is welded, and the lifting lug 3 on the second lifting beam 2 is assembled with a U-shaped lifting ring of appropriate tonnage, so as to obtain a welded lifting beam device; and the second steel wire rope 8 and the first steel wire rope 7 are hung in the hook 6 of the lifting equipment (for example, a crane), and the device is slowly lifted, and the two second steel wire ropes 8 are placed in the chute 4 during the lifting process. Through the above operation and principle, it can be ensured that the angle formed by the two second steel wire ropes 8 is much larger than the angle when the load 10 is deformed during lifting. At the same time, the distance between the contact point of the second steel wire rope 8 and the load 10 can be adjusted by factors such as the length of the first lifting beam 1, the length of the slide 4 and the length of the second steel wire rope 8 itself, so as to determine the final distance infinitely close to the horizontal diameter distance of the equipment, and ensure that the tangent of the widest diameter of the equipment is as vertical as possible to avoid the load 10 being flattened, deformed or cracked due to excessive horizontal force. Finally, the lifted load 10 is connected and locked after finding the center of gravity through the second steel wire rope 8 and the bottom lifting ring 11. If the load 10 has surface paint protection requirements, or is a newly painted equipment, in order to prevent pollution and damage to its surface during lifting, the device can be strengthened in advance, such as assembling bottom guard plates, bamboo pieces, etc., and the second steel wire rope 8 can also take protective measures, such as wrapping and winding with quilts, plastic foam, etc. After the load 10 is lifted and moved to a position, the lifting and protection device is returned to a designated position through the pulley 5 so as to be recycled and reused.

[0040] It should be understood that the devices and / or structures in the various embodiments provided in this application can 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 in this application.

[0041] 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 application in detail and are not intended to limit the present application. The embodiments in the present application 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 application.

[0042] Although preferred embodiments of the present application 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 expect multiple changes, modifications and substitutions without departing from the present application. It should be understood that the various alternatives of the embodiments of the present application described herein are optionally used to implement the present application. It is intended to define the scope of the present application with the following claims, and thus encompass the devices, structures and their equivalents within the scope of these claims.

Claims

1. A lifting and protection device, characterized in that: include: A lifting beam device, the lifting beam device comprising: Two first lifting beams (1), the two first lifting beams (1) are placed in parallel; and Two second lifting beams (2), the two second lifting beams (2) are placed in parallel, and are respectively vertically connected to the two first lifting beams (1) to form a rectangular frame; A first lifting rope device, wherein the first lifting rope device comprises: One or more first steel wire ropes (7), one or more first steel wire ropes (7) are respectively connected to the lifting beam device and the lifting connection device; and A second lifting rope device, wherein the second lifting rope device comprises: One or more second steel wire ropes (8), one or more second steel wire ropes (8) are respectively connected to the load (10) and the lifting connection device.

2. The lifting and protection device according to claim 1, characterized in that: The first lifting beam (1) is fixed with a slide groove (4), the number of the slide grooves (4) is two, and the two slide grooves (4) are respectively fixed at the two ends of the first lifting beam (1).

3. The lifting and protection device according to claim 2, characterized in that: The second steel wire rope (8) is connected to the load-bearing object (10) and the lifting connection device respectively through the slide groove (4).

4. The lifting and protection device according to claim 1, characterized in that: A lifting lug (3) is fixed above the second lifting beam (2), the number of the lifting lugs (3) is two, and the two lifting lugs (3) are respectively fixed at positions symmetrical with respect to the center point of the second lifting beam (2).

5. The lifting and protection device according to claim 4, characterized in that: The first steel wire rope (7) is connected to the lifting beam device and the lifting connection device respectively through the lifting lugs (3).

6. The lifting and protection device according to claim 4 or 5, characterized in that: A rotating lifting ring (9) is installed on the lifting ear (3).

7. The lifting and protection device according to claim 6, characterized in that: The first steel wire rope (7) is connected to the lifting beam device and the lifting connection device respectively through the rotating lifting ring (9).

8. The lifting and protection device according to claim 1 or 3, characterized in that: The lifting connection device comprises a lifting hook (6).

9. The lifting and protection device according to claim 3, characterized in that: Bottom lifting rings (11) are fixed to both ends of the second steel wire lifting rope (8).

10. The lifting and protection device according to claim 2, characterized in that: Pulleys (5) are fixed below the first lifting beam (1), the number of the pulleys (5) is 1 to 20, and the pulleys (5) are respectively fixed at positions symmetrical with respect to the center point of the first lifting beam (1).

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