Adjustable heat exchanger tower tube bundle vibration damping and self-cleaning baffle structure

Abstract

This utility model discloses an adjustable heat exchanger tower tube bundle vibration damping and self-cleaning baffle structure, including an adjustable vibration damping structure and a self-cleaning baffle structure. The adjustable vibration damping structure includes a fixed plate fixedly installed inside the heat exchanger shell, a first vibration damping rod installed on the side of the fixed plate by a first fastener, and a first flexible protective pad fixedly installed on the side of the first vibration damping rod. The fixed plate has first positioning screw grooves spaced apart on its side. The self-cleaning baffle structure includes a support base fixedly installed outside the heat exchanger shell, a drive motor fixedly installed on the side of the support base, a movable plate rotatably connected to the heat exchanger shell, a docking shaft fixedly connected to the movable plate, and an electric push rod fixedly connected to the support base. The position and number of the first and second vibration damping rods can be changed simply by adjusting the countersunk screws, making one device suitable for various specifications of heat exchanger tubes, with simple operation and good adaptability.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger components, specifically to an adjustable heat exchanger tower tube bundle vibration damping and self-cleaning flow guide baffle structure. Background Technology

[0002] Vibration-damping structures and baffle structures are important components of heat exchangers. They can reduce the vibration of heat exchange tubes and force the shell-side fluid to laterally scour the tube bundle, disrupting the laminar boundary layer, enhancing turbulence, and improving heat transfer efficiency. For example, Chinese Patent 201210504574.3 discloses an anti-resonance tube bundle heat exchanger, including a shell containing heat exchange tubes supported and fixed by tube sheets at both ends. Fluid inlets and outlets communicating with the interior of the shell are respectively located on the outer walls near both ends of the shell. At least two vertically staggered baffles are arranged on the inner wall of the shell, with several support plates between the baffles. The heat exchange tubes pass through the baffles and support plates, and several longitudinally arranged anti-resonance plates are arranged between the baffles and support plates. This design offers the following advantages: it effectively reduces the vibration between the heat exchange tubes and the baffles, thereby reducing friction between the heat exchange tubes and the baffle tube holes, improving the service life and operating efficiency of the tube bundle heat exchanger.

[0003] However, the patent still has the following drawbacks: the support plate and baffle plate need to be drilled according to the specific number and position of the heat exchange tubes when in use, which is not only cumbersome and has poor adaptability, but also the position of the baffle plate is fixed. Since the fluid velocity on the back of the baffle plate is reduced, impurities and dirt are easily deposited there, making it a major area for scaling. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an adjustable heat exchanger tower tube bundle anti-vibration and self-cleaning flow guide baffle structure. The position and number of the first and second anti-vibration pressure bars can be changed by simply adjusting the countersunk screws, so that one set of equipment can be used for heat exchange tubes of various specifications, and is easy to operate and has good adaptability.

[0005] According to the technical solution provided by the embodiments of this utility model, the adjustable heat exchanger tower tube bundle anti-vibration and self-cleaning flow guide baffle structure includes an adjustable anti-vibration structure and a self-cleaning flow guide baffle structure. The adjustable anti-vibration structure includes a fixed plate fixedly installed inside the heat exchanger shell, a first anti-vibration pressure rod installed on the side of the fixed plate by a first fastener, and a first flexible protective pad fixedly installed on the side of the first anti-vibration pressure rod. The side of the fixed plate is provided with a first positioning screw groove at intervals, and a first spacing is provided between adjacent first positioning screw grooves. The first anti-vibration pressure rod is a horizontal structure. The self-cleaning flow guide baffle structure includes a support base fixedly installed on the outside of the heat exchanger housing, a drive motor fixedly installed on the side of the support base, a movable plate rotatably connected to the heat exchanger housing, a docking shaft fixedly connected to the movable plate, an electric push rod fixedly connected to the support base, a guide slide plate fixedly installed at the end of the electric push rod, a second anti-vibration pressure rod installed on the side of the movable plate by a second fastener, and a second flexible protective pad fixedly installed on the side of the second anti-vibration pressure rod. The movable plate has second positioning screw grooves spaced apart on its side, a connecting wheel fixedly installed on the outside of the docking shaft, and a limit head fixedly installed on the side of the guide slide plate. Both the first and second flexible protective pads are connected to... The heat exchange tubes are in contact. The second anti-vibration pressure rod is a vertical structure. A second spacing is provided between adjacent second positioning screw grooves. The docking shaft is connected to the output shaft of the drive motor through a coupling. The side of the support base is provided with a through hole for the output shaft of the drive motor to pass through. The front and rear sides of the movable plate are fixedly connected with end shafts. A rotary sealing ring is assembled between the end shaft and the heat exchanger shell. The first fastener and the second fastener are countersunk screws. The inner wall of the support base is provided with a sliding groove that matches the guide slide plate. The end of the guide slide plate extends into the sliding groove. The side of the connecting wheel is provided with a limiting groove that matches the limiting head. The limiting head is inserted into the limiting groove. The limiting grooves are distributed in a ring array.

[0006] In summary, the beneficial effects of this utility model are as follows: 1. High adaptability: The position and number of the first and second anti-vibration pressure bars can be changed by simply adjusting the countersunk screws, so that one set of equipment can be used for heat exchange tubes of various specifications. It is easy to operate and has good adaptability. 2. Strong self-cleaning ability: By periodically rotating the movable plate through the drive motor, the fluid can flush its back, effectively preventing dirt accumulation, ensuring long-term stable heat exchange efficiency, and reducing maintenance costs for downtime cleaning. 3. Excellent vibration damping effect: The double vibration damping pressure bar design (horizontal and vertical), combined with the first and second flexible protective pads, can effectively suppress tube bundle vibration in different directions, and can prevent wear on heat exchange tubes, reducing the failure rate of heat exchange tubes. Attached Figure Description

[0007] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the present invention and the connection between the heat exchanger shell and the heat exchange tube; Figure 2 This is a side view of the adjustable vibration damping structure of this utility model. Figure 3 This is a side view of the structure of the self-cleaning flow guide baffle plate, the limiting head, the connecting wheel and the rotating sealing ring of this utility model. Figure 4 This is a schematic diagram of the connection between the guide slide, the limiting head, and the connecting wheel of this utility model.

[0008] The following are the labels in the diagram: 1. Fixed plate; 2. First anti-vibration pressure bar; 3. First flexible protective pad; 4. First positioning screw groove; 5. Support base; 6. Drive motor; 7. Movable plate; 8. Connecting shaft; 9. Electric push rod; 10. Guide slide plate; 11. Second anti-vibration pressure bar; 12. Second flexible protective pad; 13. Second positioning screw groove; 14. Connecting wheel; 15. Limiting head; 16. Heat exchanger shell; 17. Heat exchange tube. Detailed Implementation

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0010] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0011] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4An adjustable heat exchanger tower tube bundle vibration damping and self-cleaning flow guide baffle structure includes an adjustable vibration damping structure and a self-cleaning flow guide baffle structure. The adjustable vibration damping structure includes a fixed plate 1 fixedly installed inside the heat exchanger shell 16, a first vibration damping pressure rod 2 installed on the side of the fixed plate 1 by a first fastener, and a first flexible protective pad 3 fixedly installed on the side of the first vibration damping pressure rod 2. The fixed plate 1 has first positioning screw grooves 4 spaced apart on its side. The self-cleaning flow guide baffle structure includes a support base 5 fixedly installed outside the heat exchanger shell 16, and a support plate 3 fixedly installed on the side of the support base 5. The system includes a drive motor 6, a movable plate 7 rotatably connected to the heat exchanger housing 16, a docking shaft 8 fixedly connected to the movable plate 7, an electric push rod 9 fixedly connected to the support base 5, a guide slide plate 10 fixedly installed at the end of the electric push rod 9, a second anti-vibration pressure rod 11 installed on the side of the movable plate 7 by a second fastener, and a second flexible protective pad 12 fixedly installed on the side of the second anti-vibration pressure rod 11. The movable plate 7 has second positioning screw grooves 13 spaced apart on its side, a connecting wheel 14 fixedly installed on the outer side of the docking shaft 8, and a limit head 15 fixedly installed on the side of the guide slide plate 10.

[0012] like Figure 1 , Figure 2 and Figure 3 As shown, both the first flexible protective pad 3 and the second flexible protective pad 12 are in contact with the heat exchange tube 17, which can prevent wear on the heat exchange tube 17 and reduce the failure rate of the heat exchange tube 17. A first gap is provided between adjacent first positioning screw grooves 4. The first anti-vibration pressure rod 2 is a horizontal structure, and the second anti-vibration pressure rod 11 is a vertical structure, which can effectively suppress the vibration of the heat exchange tube 17 in different directions. A second gap is provided between adjacent second positioning screw grooves 13.

[0013] like Figure 1 and 3 As shown, the docking shaft 8 is connected to the output shaft of the drive motor 6 via a coupling. The side of the support base 5 has a through hole for the output shaft of the drive motor 6 to pass through. An electrical control box is mounted on the side of the support base 5. The drive motor 6, the electric push rod 9, and the electrical control box are electrically connected to the control box for convenient control. End shafts are fixedly connected to both the front and rear sides of the movable plate 7, facilitating the fixed connection of the docking shaft 8. A rotary sealing ring is fitted between the end shaft and the heat exchanger housing 16.

[0014] like Figure 1 , Figure 3 and Figure 4As shown, both the first and second fasteners are countersunk screws. The inner wall of the support base 5 is provided with a groove that matches the guide slide plate 10, and the end of the guide slide plate 10 extends into the groove. The side of the connecting wheel 14 is provided with a limiting groove that matches the limiting head 15, and the limiting head 15 is inserted into the limiting groove. The limiting grooves are arranged in a circular array.

[0015] In use: Remove the first and second fasteners. Based on the specific number and position of the heat exchange tubes 17, first adjust the number of the first anti-vibration rods 2 and the second anti-vibration rods 11. Then, use the first fasteners to selectively fix the first anti-vibration rods 2 into the corresponding first positioning screw grooves 4 to achieve adjustment. Similarly, use the second fasteners to selectively fix the second anti-vibration rods 11 into the corresponding second positioning screw grooves 13 to achieve adjustment. This allows one device to be used for various specifications of heat exchange tubes 17, is easy to operate, and has good adaptability. The horizontal first anti-vibration rods 2 and the vertical second anti-vibration rods 11 can effectively suppress vibrations of the heat exchange tubes 17 in different directions. The device, in conjunction with the first flexible protective pad 3 and the second flexible protective pad 12, can prevent wear on the heat exchange tube 17 and reduce the failure rate of the heat exchange tube 17. During use, the electric push rod 9 of the self-cleaning guide baffle structure can be activated periodically through the electrical control box, which can disengage the limit head 15 from the limit groove and release the limit on the connecting wheel 14. Then, the drive motor 6 can be activated through the electrical control box, which can drive the docking shaft 8, the movable plate 7 and the second anti-vibration pressure rod 11 to rotate. The angle of the movable plate 7 can be adjusted so that the fluid can flush its back, effectively preventing dirt deposition, ensuring long-term stable heat exchange efficiency and reducing maintenance costs for downtime cleaning.

[0016] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles and solutions employed. Furthermore, the scope of this invention is not limited to the specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

Claims

1. An adjustable heat exchanger tower tube bundle vibration damping and self-cleaning flow guide baffle structure, comprising an adjustable vibration damping structure and a self-cleaning flow guide baffle structure, characterized in that: The adjustable vibration damping structure includes a fixed plate (1) fixedly installed inside the heat exchanger shell (16), a first vibration damping rod (2) installed on the side of the fixed plate (1) by a first fastener, and a first flexible protective pad (3) fixedly installed on the side of the first vibration damping rod (2). The side of the fixed plate (1) is provided with a first positioning screw groove (4) at intervals. The self-cleaning flow guide baffle structure includes a support base (5) fixedly installed on the outside of the heat exchanger housing (16), a drive motor (6) fixedly installed on the side of the support base (5), a movable plate (7) rotatably connected to the heat exchanger housing (16), a docking shaft (8) fixedly connected to the movable plate (7), an electric push rod (9) fixedly connected to the support base (5), a guide plate (10) fixedly installed at the end of the electric push rod (9), a second anti-vibration pressure rod (11) installed on the side of the movable plate (7) by a second fastener, and a second flexible protective pad (12) fixedly installed on the side of the second anti-vibration pressure rod (11). The side of the movable plate (7) is provided with a second positioning screw groove (13) spaced apart. A connecting wheel (14) is fixedly installed on the outside of the docking shaft (8), and a limit head (15) is fixedly installed on the side of the guide plate (10).

2. The adjustable heat exchanger tower tube bundle vibration damping and self-cleaning flow guide baffle structure according to claim 1, characterized in that: Both the first flexible protective pad (3) and the second flexible protective pad (12) are in contact with the heat exchange tube (17), and a first gap is provided between adjacent first positioning screw grooves (4).

3. The adjustable heat exchanger tower tube bundle vibration damping and self-cleaning flow guide baffle structure according to claim 1, characterized in that: The first anti-vibration pressure bar (2) is a horizontal structure, the second anti-vibration pressure bar (11) is a vertical structure, and a second spacing is provided between adjacent second positioning screw grooves (13).

4. The adjustable heat exchanger tower tube bundle vibration damping and self-cleaning flow guide baffle structure according to claim 1, characterized in that: The docking shaft (8) is connected to the output shaft of the drive motor (6) via a coupling, and the side of the support base (5) is provided with a through hole for the output shaft of the drive motor (6) to pass through.

5. The adjustable heat exchanger tower tube bundle vibration damping and self-cleaning baffle structure according to claim 1, characterized in that: The front and rear sides of the movable plate (7) are fixedly connected with end shafts, and a rotary sealing ring is assembled between the end shafts and the heat exchanger shell (16).

6. The adjustable heat exchanger tower tube bundle vibration damping and self-cleaning flow guide baffle structure according to claim 1, characterized in that: Both the first fastener and the second fastener are countersunk screws. The inner wall of the support base (5) is provided with a groove that matches the guide slide plate (10). The end of the guide slide plate (10) extends into the groove.

7. The adjustable heat exchanger tower tube bundle vibration damping and self-cleaning flow guide baffle structure according to claim 1, characterized in that: The side of the connecting wheel (14) is provided with a limiting groove that matches the limiting head (15). The limiting head (15) is inserted into the limiting groove, and the limiting groove is distributed in a ring array.

Images