Petrochemical industry production heat exchanger with self-cleaning function

Abstract

The utility model discloses a petrochemical industry production heat exchanger with a self-cleaning function, and belongs to the technical field of petrochemical industry heat exchangers, the petrochemical industry production heat exchanger comprises a shell and two vertical plates, a motor is fixedly installed on the side wall of one of the vertical plates, a rotating pipe is fixedly installed at the tail end of a rotating shaft of the motor, a rotating joint is rotatably installed on the rotating pipe, and the rotating joint is fixedly installed on the shell. A liquid inlet pipe is installed on the rotating connector in a communicating mode, and a hollow disc is fixedly installed at the tail end of the rotating pipe. A hollow disc is mounted on one side of the other vertical plate through a rotary joint, and the heat exchange pipe is mounted between the two hollow discs in a communicating manner; mounting plates are symmetrically and fixedly mounted between the two hollow discs, limiting cylinders are fixedly mounted on the sides, close to the inner wall of the shell, of the mounting plates, telescopic rods are slidably mounted in the limiting cylinders, and brush plates are fixedly mounted at the tail ends of the telescopic rods. Compared with the prior art, the device can effectively and automatically clean the inner wall of the heat exchanger for petrochemical industry production.

Description

Technical Field

[0001] This utility model belongs to the field of petrochemical heat exchanger technology, and in particular to a heat exchanger for petrochemical production with self-cleaning function. Background Technology

[0002] A heat exchanger is a commonly used device in thermal engineering. It is typically used to transfer heat from a high-temperature fluid to a low-temperature fluid to meet specified process requirements. It is used to provide heat to a target or absorb heat to prevent the target temperature from becoming too high and causing danger. In the petrochemical production process, shell and tube heat exchangers are widely used in various application scenarios, such as steam generators, condensers, and oil-gas exchangers, to provide heat or absorb heat.

[0003] Existing heat exchangers used in petrochemical production accumulate a large amount of impurities on their inner walls after prolonged use, which directly affects their heat exchange efficiency. Therefore, it is necessary to clean the inner walls. However, the current cleaning methods mostly involve disassembling the heat exchanger and cleaning it manually. Manual cleaning is slow and wastes a lot of manpower. Therefore, there is an urgent need for a self-cleaning heat exchanger for petrochemical production to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a heat exchanger for petrochemical production with self-cleaning function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat exchanger for petrochemical production with self-cleaning function, comprising a heat exchanger shell for petrochemical production and a heat exchange tube for petrochemical production. Two vertical plates are fixedly installed longitudinally and symmetrically inside the shell. A motor is fixedly installed on the side wall of one of the vertical plates. A rotating tube is fixedly installed at the end of the rotating shaft of the motor. A rotary joint is rotatably installed on the rotating tube, and a liquid inlet pipe is connected to the rotary joint. A hollow plate is fixedly installed at the end of the rotating tube.

[0006] A hollow plate is installed on one side of the other vertical plate via a rotary joint, and the heat exchange tube is connected and installed between the two hollow plates;

[0007] A mounting plate is fixedly and symmetrically installed between the two hollow discs. A limiting cylinder is fixedly installed on the side of the mounting plate near the inner wall of the shell, and a telescopic rod is slidably installed inside the limiting cylinder. A brush plate is fixedly installed at the end of the telescopic rod.

[0008] Preferably, a push spring is fixedly installed on the inner wall of the limiting cylinder, and the end of the push spring is fixedly connected to the telescopic rod.

[0009] Preferably, the inner wall of the limiting cylinder has two symmetrically formed limiting grooves, and the side wall of the telescopic rod is symmetrically fixedly installed with limiting blocks.

[0010] Preferably, the two limiting blocks fixedly installed on the side wall of the telescopic rod are slidably connected to the inside of the two limiting grooves opened in the inner wall of the limiting cylinder.

[0011] Preferably, a brush is fixedly bonded to the side of the brush plate near the inner wall of the housing.

[0012] Preferably, the outer wall of the motor is covered with a sealed, high-temperature resistant protective shell.

[0013] Preferably, a sealing ring is fixedly sleeved on the outer wall of the telescopic rod, and the outer wall of the sealing ring slides and seals against the inner wall of the limiting cylinder.

[0014] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0015] This self-cleaning heat exchanger for petrochemical production benefits from the structure of hollow discs, heat exchange tubes and liquid inlet pipes. Liquid is introduced into the interior of the hollow discs and heat exchange tubes through the liquid inlet pipes to exchange heat with the liquid in the shell.

[0016] This self-cleaning heat exchanger for petrochemical production benefits from the installation of a mounting plate, a limiting cylinder, a telescopic rod, and a brush plate. The brush plate slides against the inner wall of the shell. At the same time, the motor is started, which drives the hollow disc, heat exchange tube, and brush plate to rotate, thereby cleaning the inner wall of the shell through the brush plate.

[0017] This self-cleaning heat exchanger for petrochemical production benefits from the push spring inside the limiting cylinder, which effectively pushes the telescopic rod fixed at its end and the brush plate fixed at the end of the telescopic rod to fit tightly against the inner wall of the shell, thereby further improving the cleaning effect of the brush plate on the inner wall of the shell.

[0018] This self-cleaning heat exchanger for petrochemical production can effectively and automatically clean the inner wall of the heat exchanger compared with existing technologies. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional sectional view of the shell in this utility model;

[0022] Figure 3 This is a schematic diagram of the hollow disc, heat exchange tube, mounting plate, and brush plate in this utility model.

[0023] Figure 4 This is a schematic diagram showing the connection between the hollow disc, heat exchange tube, and rotary joint in this utility model.

[0024] Figure 5 This is a planar sectional view of the limiting cylinder in this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] In the diagram: 1. Shell; 2. Vertical plate; 3. Liquid inlet pipe; 4. Motor; 5. Rotary pipe; 6. Rotary joint; 7. Hollow disc; 8. Heat exchange tube; 9. Mounting plate; 10. Limiting cylinder; 11. Telescopic rod; 12. Brush plate; 13. Push spring; 14. Limiting block; 15. Brush. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0028] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0029] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0030] like Figures 1 to 5 The main structure of a self-cleaning heat exchanger for petrochemical production is a heat exchanger shell 1 and a heat exchange tube 8. Two vertical plates 2 are fixedly installed longitudinally and symmetrically inside the shell 1. A motor 4 is fixedly installed on the side wall of one of the vertical plates 2. The outer wall of the motor 4 is covered with a sealed high-temperature resistant protective shell. The motor 4 is installed inside the shell 1, so it needs to withstand high temperature and be sealed. Therefore, installing a sealed high-temperature resistant protective shell on the outer wall of the motor 4 can effectively protect the motor 4, thereby further improving the service life of the motor 4.

[0031] A rotating tube 5 is fixedly installed at the end of the shaft of motor 4. A rotary joint 6 is rotatably installed on the rotating tube 5, and an inlet pipe 3 is connected to the rotary joint 6. A hollow disk 7 is fixedly installed at the end of the rotating tube 5. The side walls of the two hollow disks 7 are connected to rotating tubes 5, and the rotating tubes 5 are respectively connected to the inlet pipe 3 and the outlet pipe, and are all connected through the rotary joint 6. This allows the hollow disks 7 to rotate without affecting the flow of liquid inside. The rotary joint 6 refers to a pipe connection device, and the connected pipes can rotate relative to each other and can be used to transmit various media such as gas, liquid, and oil.

[0032] A hollow plate 7 is installed on one side of another vertical plate 2 via a rotary joint 6. A heat exchange tube 8 is connected and installed between the two hollow plates 7. Multiple heat exchange tubes 8 are provided to further increase the contact area between the liquid in the heat exchange tube 8 and the liquid inside the shell 1, thereby further improving the heat exchange effect.

[0033] A mounting plate 9 is fixedly and symmetrically installed between two hollow discs 7. A limiting cylinder 10 is fixedly installed on the side of the mounting plate 9 near the inner wall of the shell 1, and a telescopic rod 11 is slidably installed inside the limiting cylinder 10. A brush plate 12 is fixedly installed at the end of the telescopic rod 11. Thanks to the arrangement of the mounting plate 9, the limiting cylinder 10, the telescopic rod 11, and the brush plate 12, and the brush plate 12 slidingly adhering to the inner wall of the shell 1, the motor 4 is started, which drives the hollow discs 7, the heat exchange tubes 8, and the brush plate 12 to rotate, thereby cleaning the inner wall of the shell 1 through the brush plate 12.

[0034] A push spring 13 is fixedly installed on the inner wall of the limiting cylinder 10. The end of the push spring 13 is fixedly connected to the telescopic rod 11. Thanks to the push spring 13 in the limiting cylinder 10, the push spring 13 can effectively push the telescopic rod 11 fixedly installed at its end and the brush plate 12 fixedly installed at the end of the telescopic rod 11 to fit tightly against the inner wall of the housing 1, thereby further improving the cleaning effect of the brush plate 12 on the inner wall of the housing 1.

[0035] The inner wall of the limiting cylinder 10 has two symmetrical limiting grooves. The side wall of the telescopic rod 11 is symmetrically fixedly installed with limiting blocks 14. The two limiting blocks 14 fixedly installed on the side wall of the telescopic rod 11 are slidably connected to the inside of the two limiting grooves opened in the inner wall of the limiting cylinder 10. The limiting blocks 14 can effectively limit the sliding direction of the telescopic rod 11 and the brush plate 12, and further improve the stability of the brush plate 12 when sliding.

[0036] A brush 15 is fixedly attached to the side of the brush plate 12 near the inner wall of the housing 1. Thanks to the setting of the brush 15, the cleaning effect of impurities on the inner wall of the housing 1 can be further improved.

[0037] A sealing ring is fixedly fitted to the outer wall of the telescopic rod 11, and the outer wall of the sealing ring slides and seals against the inner wall of the limiting cylinder 10. Thanks to the setting of the sealing ring, it can effectively prevent the liquid in the housing 1 from entering the interior of the limiting cylinder 10 and affecting its internal components, while not affecting the normal extension and retraction of the telescopic rod 11.

[0038] Working principle

[0039] This self-cleaning heat exchanger for petrochemical production, when needed, allows cleaning fluid to be introduced into the interior of the shell 1 through an inlet. Then, a motor 4 fixedly mounted on the side wall of the vertical plate 2 is activated, driving a rotating tube 5 fixedly mounted at the end of a shaft. Simultaneously, the rotating tube 5 drives a hollow disc 7 connected to its end and multiple heat exchange tubes 8 connected between the two hollow discs 7 to rotate. Simultaneously, a mounting plate 9 fixedly mounted between the two hollow discs 7 rotates, causing a limiting cylinder 10, a telescopic rod 11, and a brush plate 12 fixedly mounted on the side wall of the mounting plate 9 to slide and rotate against the inner wall of the shell 1, thus cleaning impurities from the inner wall of the shell 1. Furthermore, a push spring 13 mounted on the inner wall of the limiting cylinder 10 pushes the telescopic rod 11 and the brush plate 12 to tightly adhere to the inner wall of the shell 1, further enhancing the cleaning effect of the brush plate 12 on the inner wall of the shell 1.

[0040] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger for petrochemical production with self-cleaning function, comprising a heat exchanger shell (1) and heat exchange tubes (8) for petrochemical production, characterized in that: The housing (1) has two vertical plates (2) fixedly installed longitudinally and symmetrically inside. A motor (4) is fixedly installed on the side wall of one of the vertical plates (2). A rotating tube (5) is fixedly installed at the end of the rotating shaft of the motor (4). A rotary joint (6) is rotatably installed on the rotating tube (5), and an inlet pipe (3) is connected to the rotary joint (6). A hollow disk (7) is fixedly installed at the end of the rotating tube (5). A hollow plate (7) is installed on one side of another vertical plate (2) via a rotary joint (6), and the heat exchange tube (8) is connected and installed between the two hollow plates (7); A mounting plate (9) is fixedly and symmetrically installed between the two hollow discs (7). A limiting cylinder (10) is fixedly installed on the side of the mounting plate (9) near the inner wall of the shell (1). A telescopic rod (11) is slidably installed inside the limiting cylinder (10). A brush plate (12) is fixedly installed at the end of the telescopic rod (11).

2. A heat exchanger for petrochemical production with self-cleaning function according to claim 1, characterized in that: A push spring (13) is fixedly installed on the inner wall of the limiting cylinder (10), and the end of the push spring (13) is fixedly connected to the telescopic rod (11).

3. A heat exchanger for petrochemical production with self-cleaning function according to claim 2, characterized in that: The inner wall of the limiting cylinder (10) has two symmetrically opened limiting grooves, and the side wall of the telescopic rod (11) is symmetrically fixedly installed with limiting blocks (14).

4. A heat exchanger for petrochemical production with self-cleaning function according to claim 3, characterized in that: The two limiting blocks (14) fixedly installed on the side wall of the telescopic rod (11) are respectively slidably connected to the inside of the two limiting grooves opened on the inner wall of the limiting cylinder (10).

5. A heat exchanger for petrochemical production with self-cleaning function according to claim 1, characterized in that: A brush (15) is fixedly attached to the side of the brush plate (12) near the inner wall of the housing (1).

6. A heat exchanger for petrochemical production with self-cleaning function according to claim 1, characterized in that: The outer wall of the motor (4) is covered with a sealed, high-temperature resistant protective shell.

7. A heat exchanger for petrochemical production with self-cleaning function according to claim 4, characterized in that: The outer wall of the telescopic rod (11) is fixedly fitted with a sealing ring, and the outer wall of the sealing ring slides and seals against the inner wall of the limiting cylinder (10).

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