U-shaped heat exchanger tube bundle sleeve auxiliary device

Abstract

The utility model relates to the technical field of pressure containers, and discloses a U-shaped heat exchanger tube bundle sleeve auxiliary device which comprises a U-shaped heat exchanger tube bundle, a plurality of baffle plates are installed on the U-shaped heat exchanger tube bundle in the axial direction of the U-shaped heat exchanger tube bundle, installation grooves are formed in the peripheries of the baffle plates, idler wheels are installed in the installation grooves in a rotating mode through shaft seats, and the idler wheels are arranged on the U-shaped heat exchanger tube bundle. The roller rotates along the axial direction of the U-shaped heat exchanger tube bundle; a plurality of reinforcing holes are formed in the baffle plates, the corresponding reinforcing holes in the multiple baffle plates are located in the same straight line, and reinforcing ribs are fixed in the reinforcing holes located in the same straight line. According to the utility model, the sleeve work is carried out by assembling the rollers, and sliding friction is changed into rolling friction, so that the tube bundle can be pushed into the cylinder body only by pushing the tube plate, and the sleeve work is completed; the sleeving efficiency is improved, equipment parts cannot be damaged, and the stability and safety of equipment are enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and relates to pressure vessels, specifically an auxiliary device for a U-shaped heat exchanger tube bundle sleeve. Background Technology

[0002] U-tube heat exchangers are widely used heat exchangers, applied in heat exchange and convection processes such as heat transfer in chemical, petroleum, pharmaceutical, food, light industry, metallurgy, and coking industries, as well as heat exchange and condensation processes such as steam condensation and liquid evaporation. In traditional heat exchanger manufacturing processes, due to the small gap between the baffles and the shell, the sleeves are often moved using methods such as crane dragging, hammering vibration, and physical impact after the tube bundle is manufactured, making the sleeve operation very difficult. Traditional sleeve-making methods easily damage the baffles, and in severe cases, damage the heat exchange tubes, causing equipment failure.

[0003] Therefore, there is an urgent need to develop an auxiliary device for U-shaped heat exchanger tube bundle sleeves to simplify the sleeve process and improve work efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an auxiliary device for U-shaped heat exchanger tube bundle sleeve, which can simplify the sleeve process, reduce damage to equipment parts during the sleeve assembly process, and enhance the stability and safety of the equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for a U-shaped heat exchanger tube bundle sleeve, comprising a U-shaped heat exchanger tube bundle, wherein a plurality of baffles are mounted on the U-shaped heat exchanger tube bundle along its axial direction, and an installation groove is provided on the outer periphery of the baffles, wherein a roller is rotatably mounted in the installation groove via a bearing seat, and the roller rotates along the axial direction of the U-shaped heat exchanger tube bundle;

[0006] The baffle plate has multiple reinforcing holes, and the corresponding reinforcing holes on the multiple baffle plates are located on the same straight line. Reinforcing ribs are fixed in the reinforcing holes located on the same straight line.

[0007] As a further technical solution, two mounting slots are provided on the outer periphery of the baffle plate, and the two mounting slots are set at a 60° angle with the center of the baffle plate.

[0008] As a further technical solution, the baffle plate is provided with reinforcing holes symmetrically on both sides of each mounting slot.

[0009] As a further technical solution, the roller is integrally machined to prevent the roller from deforming due to excessive pressure from the tube bundle; its main body is round and drum-shaped, with roller shafts on both sides.

[0010] As a further technical solution, the circular drum-shaped arc surface of the roller is consistent with the curvature of the sleeved cylinder to ensure full contact between the roller and the cylinder.

[0011] As a further technical solution, when the roller is installed in the mounting groove, the highest point of its round drum-shaped arc surface is 2mm higher than the outer circumference of the baffle plate, ensuring that the cylinder contacts the roller but does not contact the surface of the baffle plate.

[0012] As a further technical solution, the two bearings are fixed to the inner walls of the mounting groove on both sides by welding.

[0013] As a further technical solution, the reinforcing ribs are fixed to the reinforcing holes on the baffle plate by welding to prevent the baffle plate from deforming at the point where the roller is under stress, which would cause the roller to deviate.

[0014] The installation process of this utility model is as follows:

[0015] 1) Machining mounting grooves and reinforcing holes on the outer circumferential surface of the baffle. Two mounting grooves are machined on each baffle, with the two grooves distributed at a 60° angle around the center of the baffle.

[0016] 2) Install the rollers in the mounting slot. First, insert the two roller shafts into the mounting through holes of the shaft seat, and then weld this device into the mounting slot of the baffle plate.

[0017] 3) Insert the reinforcing ribs into the reinforcing holes of the baffle plate, and then weld the reinforcing ribs to the reinforcing holes of the baffle plate to reinforce multiple baffle plates and effectively prevent the baffle plates from deforming under stress.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention uses rollers to perform sleeve operation, changing sliding friction to rolling friction. This allows the tube bundle to be pushed into the cylinder by simply pushing the tube sheet, thus completing the sleeve assembly. This not only improves the assembly efficiency but also prevents damage to equipment components, enhancing the stability and safety of the equipment. Attached Figure Description

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of a U-shaped tube bundle structure.

[0022] Figure 2 This is a schematic diagram of the structure of this utility model.

[0023] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the roller structure.

[0025] Figure 5 This is a schematic diagram of the bearing seat.

[0026] In the figure, 1-baffle plate; 11-mounting groove; 12-reinforcing hole; 2-roller; 21-roller shaft; 3-shaft seat; 31-mounting through hole; 4-reinforcing rib; 5-heat exchange tube; 6-tube sheet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: Reference Figure 1-5 The illustrated auxiliary device for a U-shaped heat exchanger tube bundle includes a U-shaped heat exchanger tube bundle. Multiple baffles 1 are mounted axially on the U-shaped heat exchanger tube bundle. Mounting grooves 11 are formed on the outer periphery of each baffle 1. Two bearing seats 3 are welded and fixed to the inner walls of both sides of the mounting grooves 11. Rollers 2 are rotatably mounted within the bearing seats 3, and the rollers 2 rotate axially along the U-shaped heat exchanger tube bundle. Multiple reinforcing holes 12 are formed on each baffle 1. Corresponding reinforcing holes 12 on the multiple baffles 1 are located on the same straight line, and reinforcing ribs 4 are fixed within the reinforcing holes 12 located on the same straight line.

[0029] like Figure 1-2 As shown, two mounting slots 11 are provided on the outer periphery of the baffle plate 1, and the two mounting slots 11 are set at a 60° angle with the center of the baffle plate 1; each mounting slot 11 has symmetrical reinforcing holes 12 on both sides; reinforcing ribs 4 are inserted into the reinforcing holes 12 and fixed by welding to prevent the baffle plate 1 from deforming at the point where the roller 2 is under force, which would cause the roller 2 to deflect.

[0030] like Figure 4 As shown, roller 2 is integrally machined to prevent deformation of roller 2 due to excessive pressure from the tube bundle. The main body of roller 2 is drum-shaped, with roller shafts 21 formed on both sides.

[0031] Furthermore, the circular drum-shaped arc surface of roller 2 is consistent with the arc of the sleeved cylinder, which can ensure that roller 2 and cylinder are in full contact; the highest point of the circular drum-shaped arc surface of roller 2 is 2mm higher than the outer circumferential surface of baffle 1, which can ensure that the cylinder is in contact with roller 2 but not with the surface of baffle 1.

[0032] Please see Figures 1-5 An auxiliary device for a U-shaped heat exchanger tube bundle sleeve, the installation process of which is as follows:

[0033] (1) such as Figure 2-3 As shown, mounting grooves 11 and reinforcing holes 12 are machined on the outer peripheral surface of the baffle plate 1. Two mounting grooves 11 are machined on each baffle plate 1, and the two mounting grooves 11 are distributed at a 60° angle around the center of the baffle plate 1.

[0034] (2) Install roller 2 in mounting groove 11. First, insert the two roller shafts 21 of roller 2 into the mounting through holes 31 of shaft seat 3, and then press... Figure 2 As shown, this device is welded into the mounting groove 11 of the baffle plate 1.

[0035] (3) Insert the reinforcing rib 4 into the reinforcing hole 12 of the baffle plate 1, and then weld the reinforcing rib 4 to the reinforcing hole 12 of the baffle plate 1 to achieve reinforcement of multiple baffle plates 1 and effectively prevent the baffle plate 1 from deforming under stress.

[0036] In practical applications, the U-shaped heat exchanger tube bundle needs to be installed in a sleeve. This invention utilizes rollers in conjunction with the sleeve to change sliding friction to rolling friction. During sleeve operation, simply pushing the tube sheet 6 pushes the tube bundle into the cylinder via the rollers 2, completing the installation. This invention not only improves installation efficiency but also prevents damage to equipment components, enhancing the stability and safety of the equipment.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for a U-shaped heat exchanger tube bundle sleeve, comprising a U-shaped heat exchanger tube bundle, wherein a plurality of baffles (1) are mounted on the U-shaped heat exchanger tube bundle along its axial direction, characterized in that: The baffle (1) has an installation groove (11) on its outer periphery. A roller (2) is rotatably mounted in the installation groove (11) through a bearing (3). The roller (2) rotates along the axial direction of the U-shaped heat exchanger tube bundle. Multiple reinforcing holes (12) are provided on the outer periphery of the baffle (1). The corresponding reinforcing holes (12) on the multiple baffles (1) are located on the same straight line, and reinforcing ribs (4) are fixed in the reinforcing holes (12) located on the same straight line.

2. The auxiliary device for a U-shaped heat exchanger tube bundle sleeve according to claim 1, characterized in that: Two mounting slots (11) are provided on the outer periphery of the baffle (1), and the two mounting slots (11) are set at a 60° angle with the center of the baffle (1).

3. The auxiliary device for a U-shaped heat exchanger tube bundle sleeve according to claim 1, characterized in that: The baffle plate (1) is provided with reinforcing holes (12) symmetrically on both sides of each mounting slot (11).

4. The auxiliary device for a U-shaped heat exchanger tube bundle sleeve according to claim 1, characterized in that: The roller (2) is integrally formed, with its main body being a round drum shape and roller shafts (21) on both sides.

5. The auxiliary device for a U-shaped heat exchanger tube bundle sleeve according to claim 4, characterized in that: The circular drum-shaped arc surface of the roller (2) is consistent with the arc of the inner wall of the sleeve.

6. The auxiliary device for a U-shaped heat exchanger tube bundle sleeve according to claim 1, characterized in that: When the roller (2) is installed in the mounting groove (11), the highest point of its round drum-shaped arc surface is 2mm higher than the outer periphery of the baffle plate (1).

7. The auxiliary device for a U-shaped heat exchanger tube bundle sleeve according to claim 1, characterized in that: The two bearings (3) are fixed to the inner walls of the mounting groove (11) by welding.

8. The auxiliary device for a U-shaped heat exchanger tube bundle sleeve according to claim 1, characterized in that: The reinforcing rib (4) is fixed to the reinforcing hole (12) on the baffle plate (1) by welding.

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