An automatic tube bundle conveying device for shell-and-tube heat exchangers

Abstract

This utility model discloses an automatic tube bundle conveying device for shell-and-tube heat exchangers, relating to the field of shell-and-tube heat exchanger tube bundle technology. The device includes a fixed frame with a tube storage box fixedly connected to it. A downwardly inclined discharge pipe is located at the lower end of the storage box. A uniform discharge mechanism is provided in the discharge pipe, and a tube arrangement component is located at the outlet of the discharge pipe. Feeding components are located on both sides of the tube arrangement component. A lifting unit is located on the side of the fixed frame away from the tube arrangement component, and a baffle assembly is located on the lifting unit. The device automatically sorts the tube bundles using the discharge mechanism and tube arrangement component, and then, in conjunction with the feeding components, simultaneously conveys and inserts multiple tube bundles, increasing work efficiency and reducing workload. A clamping module aligns the tube bundles with the insertion holes on the baffle assembly, reducing downward bending and offset of the tube bundles due to their own weight, thus improving the alignment accuracy between the insertion holes on the baffle assembly and the heat exchange tubes.

Description

Technical Field

[0001] This utility model relates to the field of shell-and-tube heat exchanger tube bundle technology, specifically an automatic conveying device for shell-and-tube heat exchanger tube bundles. Background Technology

[0002] Shell-and-tube heat exchangers, also known as tubular heat exchangers, are indirect heat exchangers that use the walls of tube bundles enclosed in a shell as the heat transfer surface. These heat exchangers have a simple structure, low cost, wide flow cross-section, and are easy to clean of scale. The tube bundles in the heat exchanger usually need to pass through baffles to fix them and form flow channels to improve heat exchange efficiency. This requires the tube bundles to pass accurately through the holes in the baffles.

[0003] In existing technologies, tube threading machines are typically used for tube threading. However, tube threading machines can only thread one tube bundle at a time, and cannot simultaneously thread multiple tube bundles, resulting in low work efficiency and high labor intensity.

[0004] Based on this, an automatic tube bundle conveying device for shell-and-tube heat exchangers is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide an automatic tube bundle conveying device for shell-and-tube heat exchangers to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic tube bundle conveying device for a shell-and-tube heat exchanger includes a fixed frame, on which a storage box is fixedly connected. The lower end of the storage box is provided with a downwardly inclined discharge pipe. The discharge pipe is provided with a discharge mechanism for uniform discharge. A tube arrangement component is provided at the outlet of the discharge pipe. Feeding components are provided on both sides of the tube arrangement component. A lifting unit is provided on the side of the fixed frame away from the tube arrangement component. A baffle assembly is provided on the lifting unit.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the discharge mechanism includes a discharge roller, which is rotatably connected to a discharge pipe, and the output shaft of a motor is fixedly connected to the discharge roller. The motor is fixedly connected to the discharge pipe, and the discharge roller is provided with two symmetrically distributed discharge slots.

[0010] In one alternative embodiment: the pipe assembly includes two fixed plates, the lower ends of which are respectively fixedly connected to the output ends of two telescopic rods, which are fixedly connected to a fixed frame. Multiple limiting seats are respectively fixedly connected to the upper ends of the two fixed plates, each limiting seat having a groove for placing the pipe bundle. Support plates are fixedly connected to both sides of the fixed plates on the fixed frame. Toothed limiting blocks are provided at the upper ends of the support plates, cooperating with the limiting seats. A photoelectric sensor is fixedly connected to the fixed plate, located at the limiting seat furthest from the discharge pipe.

[0011] In one alternative embodiment: the feeding component includes a fixed plate two, which is fixedly connected to a fixed frame via two support columns. Seven mounting brackets one are fixedly connected to the fixed plate two, and each of the seven mounting brackets one is rotatably connected to a drive wheel. The seven drive wheels are coaxially fixedly connected to a transmission shaft, which is fixedly connected to the output shaft of a motor two. The motor two is fixedly connected to the mounting brackets one. The mounting brackets one are provided with two sliding grooves, and sliders are slidably connected in the two sliding grooves. A driven wheel is rotatably connected between the two sliders. One end of a spring is fixedly connected to each of the two sliders, and the other end of the spring is fixedly connected to the inner wall of the sliding groove. A fixed plate three is provided on the side of the pipe assembly away from the fixed plate two, and two telescopic rods two are fixedly connected to the fixed plate three. The output rod of the telescopic rods two is fixedly connected to a push plate.

[0012] In one alternative embodiment: the lifting unit includes two support plates 2, which are fixedly connected to a fixed frame. A mounting seat for discharging the baffle assembly is slidably connected between the two support plates 2. The output shaft of a telescopic rod 3 is fixedly connected under the mounting seat. The telescopic rod 3 is fixedly connected to the fixed frame.

[0013] In one alternative: two rodless cylinders are provided on the fixed frame between the feeding component and the lifting unit. The upper end of the rodless cylinder is fixedly connected to the mounting frame 2. The upper end of the mounting frame 2 is fixedly connected to multiple fixed seats 1. Two telescopic rods 4 are fixedly connected to the mounting frame 2. The output shaft of the telescopic rods 4 is fixedly connected to the fixed plate 4. The lower end of the fixed plate 4 is fixedly connected to multiple fixed seats 2.

[0014] In one alternative: multiple controllers are fixedly connected to the mounting frame, and the controllers are electrically connected to motor one, motor two, telescopic rod one, telescopic rod two, telescopic rod three, telescopic rod four, rodless cylinder and photoelectric sensor respectively.

[0015] In one alternative: the mounting base is provided with a rubber pad.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention automatically sorts tube bundles using a discharge mechanism and a pipe arrangement component, and then, in conjunction with a feeding component, simultaneously conveys and inserts multiple tube bundles, increasing work efficiency and reducing workload. By using a clamping module to align the tube bundles with the insertion holes on the baffle assembly, the downward bending and offset of the tube bundles due to their own gravity can be reduced, which helps to improve the alignment accuracy between the insertion holes on the baffle assembly and the heat exchange tubes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the material discharge mechanism of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the pipe assembly of this utility model.

[0021] Figure 4 This is a schematic diagram of the feeding component of this utility model.

[0022] Figure 5 This is a schematic diagram of the slide groove of this utility model.

[0023] Figure 6 This is a structural schematic diagram of the lifting unit of this utility model.

[0024] Figure 7 This is a schematic diagram of the clamping module of this utility model.

[0025] Figure reference numerals: 100, fixed frame; 101, storage box; 102, discharge pipe; 200, baffle assembly; 301, discharge roller; 302, motor one; 303, discharge chute; 401, fixed plate one; 402, telescopic rod one; 403, limit seat; 404, support plate one; 405, toothed limit block; 406, photoelectric sensor; 501, fixed plate two; 502, mounting bracket one; 503, drive wheel; 504, drive shaft; 50 5. Motor II; 506. Slide rail; 507. Slider; 508. Driven wheel; 509. Spring; 510. Fixing plate III; 511. Telescopic rod II; 512. Push plate; 601. Support plate II; 602. Mounting seat; 603. Telescopic rod III; 701. Rodless cylinder; 702. Mounting bracket II; 703. Fixing seat I; 704. Telescopic rod IV; 705. Fixing plate IV; 706. Fixing seat II; 800. Controller; 900. Rubber pad. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, such as Figures 1-7 As shown, an automatic tube bundle conveying device for a shell-and-tube heat exchanger includes a fixed frame 100, on which a tube storage box 101 is fixedly connected. The lower end of the tube storage box 101 is provided with a downwardly inclined discharge pipe 102. The discharge pipe 102 is equipped with a uniform discharge mechanism. A tube arrangement component is provided at the outlet of the discharge pipe 102. Feeding components are provided on both sides of the tube arrangement component. A lifting unit is provided on the side of the fixed frame 100 away from the tube arrangement component. A baffle assembly 200 is provided on the lifting unit. The discharge mechanism uniformly discharges the tube bundles one by one from the tube storage box 101, and works with the tube arrangement component to neatly arrange multiple tube bundles. The feeding components simultaneously convey and insert multiple tube bundles. After inserting tubes into one layer of the baffle assembly 200, the lifting unit drives the baffle assembly 200 to rise and fall, inserting tubes into the next layer.

[0028] In this embodiment, as Figure 2 As shown, the discharge mechanism includes a discharge roller 301, which is rotatably connected to the discharge pipe 102. The discharge roller 301 is fixedly connected to the output shaft of a motor 302, which is also fixedly connected to the discharge pipe 102. The discharge roller 301 has two symmetrically distributed discharge slots 303. The tube bundle in the storage box 101 enters the discharge pipe 102. The width of the discharge pipe 102 allows only one tube bundle to enter. Once the tube bundle enters the discharge slot 303, the motor 302 drives the discharge roller 301 to rotate, causing the tube bundle in the discharge slot 303 to be discharged from the outlet of the discharge pipe 102. Only one tube bundle can be discharged at a time.

[0029] In one embodiment, such as Figure 1 and Figure 3As shown, the pipe assembly includes two fixing plates 401. The lower ends of the two fixing plates 401 are respectively fixedly connected to the output ends of two telescopic rods 402. The two telescopic rods 402 are fixedly connected to the fixing frame 100. The upper ends of the two fixing plates 401 are respectively fixedly connected to multiple limiting seats 403. The limiting seats 403 are provided with grooves for placing the pipe bundle. Support plates 404 are fixedly connected to both sides of the fixing plates 401 on the fixing frame 100. The upper end of the support plate 404 is provided with toothed limiting blocks 405. The toothed limiting blocks 405 cooperate with the limiting seats 403. A photoelectric sensor 406 is fixedly connected to the fixing plate 401. The photoelectric sensor 406 is located at the limiting position farthest from the discharge pipe 102. At seat 403, the tube bundle discharged from the outlet of the discharge pipe 102 falls onto the limiting seat 403 closest to the discharge pipe 102. The telescopic rod 402 retracts its output rod, causing the limiting seat 403 to move downward. The limiting seat 403 causes the tube bundle to move downward. The tube bundle moves to the upper end of the toothed limiting block 405. As the inclined surface of the toothed limiting block 405 moves, it moves to the next limiting seat 403. The telescopic rod 402 extends its output rod, causing the limiting seat 403 to move upward, lifting the tube bundle. Another tube bundle falls from the discharge pipe 102. The above operation is repeated until the photoelectric sensor 406 at the farthest limiting seat 403 detects the tube bundle and stops. At this time, the telescopic rod 402 is in the extended output rod state, and multiple tube bundles are simultaneously conveyed by the feeding component.

[0030] In one embodiment, such as Figure 4 and Figure 5As shown, the feeding component includes a second fixed plate 501, which is fixedly connected to the fixed frame 100 by two support columns. Seven mounting brackets 502 are fixedly connected to the second fixed plate 501. Each of the seven mounting brackets 502 has a drive wheel 503 rotatably connected to it. The seven drive wheels 503 are coaxially fixedly connected to a transmission shaft 504. The transmission shaft 504 is fixedly connected to the output shaft of a second motor 505. The second motor 505 is fixedly connected to the mounting brackets 502. Each mounting bracket 502 has two sliding grooves 506, in which sliders 507 are slidably connected. A driven wheel 508 is rotatably connected between the two sliders 507. The two sliders 507 are respectively fixedly connected to… One end of the spring 509 is connected to the other end of the spring 509, which is fixedly connected to the inner wall of the slide groove 506. The pipe assembly is provided with a fixed plate 3 510 on the side away from the fixed plate 2 501. Two telescopic rods 2 511 are fixedly connected to the fixed plate 3 510. The output rod of the telescopic rod 2 511 is fixedly connected to the push plate 512. The telescopic rod 2 511 extends out of the output rod, driving the push plate 512 to push multiple pipe bundles, pushing the multiple pipe bundles simultaneously between the driving wheel 503 and the driven wheel 508. The spring 509 drives the driven wheel 508 downward, so that the driven wheel 508 is close to the pipe bundle. The motor 2 505 drives the transmission shaft 504 to rotate, and the transmission shaft 504 drives the driving wheel 503 to rotate, thereby driving the multiple pipe bundles to move simultaneously for conveying.

[0031] In one embodiment, such as Figure 6 As shown, the lifting unit includes two support plates 601, which are fixedly connected to the fixed frame 100. A mounting seat 602 for discharging the baffle assembly 200 is slidably connected between the two support plates 601. The output shaft of the telescopic rod 603 is fixedly connected to the lower part of the mounting seat 602. The telescopic rod 603 is fixedly connected to the fixed frame 100. After the holes of the first layer of the baffle assembly 200 are inserted, the telescopic rod 603 extends its output rod to drive the mounting seat 602 to move upward. The mounting seat 602 drives the baffle assembly 200 to move upward to insert holes of the next layer.

[0032] In one embodiment, such as Figure 7As shown, a clamping module is provided on the fixed frame 100 between the feeding component and the lifting unit. The clamping module includes two rodless cylinders 701. The upper end of the rodless cylinders 701 is fixedly connected to the mounting frame 702. The upper end of the mounting frame 702 is fixedly connected to multiple fixed seats 703. Two telescopic rods 704 are fixedly connected to the mounting frame 702. The output shaft of the telescopic rods 704 is fixedly connected to the fixed plate 705. The lower end of the fixed plate 705 is fixedly connected to multiple fixed seats 706. When the drive wheel 503 rotates, it drives the tube bundle to move onto the fixed seat 703. The telescopic rods 704 retract. The output rod moves the fixed plate 705 downwards, which in turn moves the fixed seat 706 downwards, clamping the tube bundle. The rodless cylinder 701 moves the fixed seat 703 to the baffle assembly 200, inserting the tube bundle into the hole. The telescopic rod 704 extends the output rod, releasing the tube bundle. The drive wheel 503 rotates again to deliver the tube bundle, while the fixed seat 703 returns to its original position. When the end of the tube bundle leaves the drive wheel 503, the fixed seat 703 and the fixed seat 706 clamp the tube bundle again. The rodless cylinder 701 moves the fixed seat 703 to fully insert the tube bundle into the hole.

[0033] In one embodiment, such as Figure 1 As shown, multiple controllers 800 are fixedly connected to the fixed frame 100. The controllers 800 are electrically connected to motor 302, motor 505, telescopic rod 402, telescopic rod 511, telescopic rod 603, telescopic rod 704, rodless cylinder 701, and photoelectric sensor 406, respectively. The controllers 800 have a built-in PLC control system, which is used to coordinate the start and stop sequence of motor 302, motor 505, telescopic rod 402, telescopic rod 511, telescopic rod 603, telescopic rod 704, rodless cylinder 701, and photoelectric sensor 406, so as to realize the linkage control between the various components of the device.

[0034] In one embodiment, such as Figure 6 As shown, the mounting base 602 is provided with a rubber pad 900 to increase the friction between the mounting base 602 and the baffle assembly 200, and to prevent the baffle assembly 200 from moving and causing misalignment of the sockets.

[0035] The above embodiment discloses an automatic tube bundle conveying device for a shell-and-tube heat exchanger. The tube bundles in the storage box 101 enter the discharge pipe 102, which is narrow enough to allow only one tube bundle to enter at a time. The tube bundles then enter the discharge trough 303. A motor 302 drives the discharge roller 301 to rotate, causing the tube bundles in the discharge trough 303 to exit from the outlet of the discharge pipe 102. Only one tube bundle can be discharged at a time. The tube bundles discharged from the outlet of the discharge pipe 102 fall onto the limiting seat 403 closest to the discharge pipe 102. The telescopic rod 402 then retracts. The extension rod moves the limiting seat 403 downwards, which in turn moves the tube bundle downwards. The tube bundle moves to the upper end of the toothed limiting block 405. As the inclined surface of the toothed limiting block 405 moves, it moves to the next limiting seat 403. The telescopic rod 402 extends outwards, moving the limiting seat 403 upwards and lifting the tube bundle. Another tube bundle falls from the discharge pipe 102. This process is repeated until the photoelectric sensor 406 at the furthest limiting seat 403 detects the tube bundle and stops. At this point, the telescopic rod 402 extends outwards for output. In the first state, telescopic rod 2 511 extends its output rod, driving push plate 512 to push multiple tube bundles simultaneously between driving wheel 503 and driven wheel 508. Spring 509 drives driven wheel 508 downward, making driven wheel 508 press against the tube bundles. Motor 2 505 drives transmission shaft 504 to rotate, which in turn drives driving wheel 503 to rotate, moving the tube bundles onto fixed seat 1 703. Telescopic rod 4 704 retracts its output rod, causing fixed plate 4 705 to move downward, and fixed plate 4 705 drives the fixed seat 1 to move downward. The second seat 706 moves downward to clamp the tube bundle. The rodless cylinder 701 drives the first fixed seat 703 to move to the baffle assembly 200, inserting the tube bundle into the hole. The fourth telescopic rod 704 extends the output rod to release the tube bundle. The drive wheel 503 rotates again to deliver the tube bundle. At the same time, the first fixed seat 703 returns to its original position. When the end of the tube bundle leaves the drive wheel 503, the first fixed seat 703 and the second fixed seat 706 clamp the tube bundle again. The rodless cylinder 701 drives the first fixed seat 703 to move, fully inserting the tube bundle into the hole.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic tube bundle conveying device for a shell-and-tube heat exchanger, comprising a fixing frame (100), characterized in that, A storage box (101) is fixedly connected to the fixed frame (100). The lower end of the storage box (101) is provided with an inclined downward discharge pipe (102). The discharge pipe (102) is provided with a discharge mechanism for uniform discharge. A pipe-laying component is provided at the outlet of the discharge pipe (102). Feeding components are provided on both sides of the pipe-laying component. A lifting unit is provided on the side of the fixed frame (100) away from the pipe-laying component. A baffle assembly (200) is provided on the lifting unit.

2. The automatic tube bundle conveying device for a shell-and-tube heat exchanger according to claim 1, characterized in that, The discharge mechanism includes a discharge roller (301), which is rotatably connected in the discharge pipe (102). The discharge roller (301) is fixedly connected to the output shaft of a motor (302), which is fixedly connected to the discharge pipe (102). The discharge roller (301) is provided with two symmetrically distributed discharge slots (303).

3. The automatic tube bundle conveying device for a shell-and-tube heat exchanger according to claim 1, characterized in that, The pipe assembly includes two fixed plates (401), the lower ends of which are respectively fixedly connected to the output ends of two telescopic rods (402). The two telescopic rods (402) are fixedly connected to the fixed frame (100). The upper ends of the two fixed plates (401) are respectively fixedly connected to multiple limiting seats (403). The limiting seats (403) are provided with grooves for placing the pipe bundle. The fixed frame (100) is fixedly connected to support plates (404) on both sides of the fixed plates (401). The upper end of the support plates (404) is provided with toothed limiting blocks (405). The toothed limiting blocks (405) cooperate with the limiting seats (403). The fixed plates (401) are fixedly connected to photoelectric sensors (406). The photoelectric sensors (406) are located at the limiting seat (403) farthest from the discharge pipe (102).

4. The automatic tube bundle conveying device for a shell-and-tube heat exchanger according to claim 1, characterized in that, The feeding component includes a second fixed plate (501), which is fixedly connected to a fixed frame (100) by two support columns. Seven mounting brackets (502) are fixedly connected to the second fixed plate (501). Each of the seven mounting brackets (502) is rotatably connected to a drive wheel (503). The seven drive wheels (503) are coaxially fixedly connected to a transmission shaft (504). The transmission shaft (504) is fixedly connected to the output shaft of a second motor (505). The second motor (505) is fixedly connected to the mounting brackets (502). The mounting brackets (502) are equipped with... Two sliding grooves (506) are provided, and sliders (507) are slidably connected in the two sliding grooves (506). A driven wheel (508) is rotatably connected between the two sliders (507). One end of a spring (509) is fixedly connected to each of the two sliders (507). The other end of the spring (509) is fixedly connected to the inner wall of the sliding groove (506). A fixing plate (510) is provided on the side of the pipe assembly away from the fixing plate (501). Two telescopic rods (511) are fixedly connected to the fixing plate (510). The output rod of the telescopic rod (511) is fixedly connected to the push plate (512).

5. The automatic tube bundle conveying device for a shell-and-tube heat exchanger according to claim 1, characterized in that, The lifting unit includes two support plates (601), which are fixedly connected to the fixed frame (100). A mounting seat (602) for discharging the baffle assembly (200) is slidably connected between the two support plates (601). The output shaft of the telescopic rod (603) is fixedly connected to the lower part of the mounting seat (602). The telescopic rod (603) is fixedly connected to the fixed frame (100).

6. The automatic tube bundle conveying device for a shell-and-tube heat exchanger according to claim 1, characterized in that, The fixed frame (100) is provided with a clamping module between the feeding component and the lifting unit. The clamping module includes two rodless cylinders (701). The upper end of the rodless cylinder (701) is fixedly connected to the mounting frame two (702). The upper end of the mounting frame two (702) is fixedly connected to multiple fixed seats one (703). The mounting frame two (702) is fixedly connected to two telescopic rods four (704). The output shaft of the telescopic rods four (704) is fixedly connected to the fixed plate four (705). The lower end of the fixed plate four (705) is fixedly connected to multiple fixed seats two (706).

7. The automatic tube bundle conveying device for a shell-and-tube heat exchanger according to claim 1, characterized in that, Multiple controllers (800) are fixedly connected to the fixed frame (100). The controllers (800) are electrically connected to motor one (302), motor two (505), telescopic rod one (402), telescopic rod two (511), telescopic rod three (603), telescopic rod four (704), rodless cylinder (701) and photoelectric sensor (406), respectively.

8. An automatic tube bundle conveying device for a shell-and-tube heat exchanger according to claim 5, characterized in that, A rubber pad (900) is provided on the mounting base (602).

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