Shell-and-tube heat exchanger with filtering effect

Abstract

The utility model relates to the technical field of shell-and-tube heat exchangers, in particular to a shell-and-tube heat exchanger with a filtering effect, which comprises a shell, the top of the shell is fixedly connected with a feed inlet, the bottom of the shell is fixedly connected with a support frame, one side of the shell is fixedly connected with a motor, the output end of the motor is provided with a rotating shaft, and the rotating shaft is fixedly connected with the support frame. One side of the rotating shaft is connected with a reciprocating mechanism and a vibrating mechanism, one side of the reciprocating mechanism is connected with a scraping plate, the interior of the shell is fixedly connected with a supporting block, the interior of the supporting block is slidably connected with a filter screen, the scraping plate corresponds to the filter screen, and the vibrating mechanism corresponds to the filter screen; the reciprocating mechanism comprises a rotating rod, the rotating rod is fixedly connected with the rotating shaft, one side of the rotating rod is rotationally connected with a rocker, and the rocker is rotationally connected with the scraper.

Description

Technical Field

[0001] The utility model relates to the technical field of shell and tube heat exchangers, in particular to a shell and tube heat exchanger with filtering effect. Background Art

[0002] As an efficient and reliable heat exchange equipment, shell and tube heat exchangers are widely used in many industrial fields. However, as the service time increases, particles and impurities tend to accumulate on the internal filter of the heat exchanger, which not only reduces the heat exchange efficiency but also may cause damage to the equipment. Therefore, the cleaning and maintenance of the filter becomes the key to ensure the continuous and efficient operation of the heat exchanger. Traditional cleaning methods usually involve regular shutdowns for manual cleaning, which not only affects production efficiency but also increases maintenance costs. In order to solve this problem, researchers are constantly exploring new cleaning technologies to achieve automatic cleaning and efficient filtration of the filter. Therefore, we propose a shell and tube heat exchanger with continuous filtration.

[0003] The prior art discloses a shell and tube heat exchanger with a filtering effect with application number: CN202322000238.1, comprising a heat exchanger body, wherein a first mounting end and a second mounting end are respectively provided at both ends of the heat exchanger body, a filtering component is vertically provided at the first mounting end, and the filtering component is connected to the first mounting end through a filter shell, and a cleaning component is matched with it and matched with it. A liquid inlet is provided on the outer side of the first mounting end, and a liquid outlet is provided on the outer side of the second mounting end, an air inlet is provided on the top surface of one side of the heat exchanger body, and an air outlet is provided on the top surface of the other side of the heat exchanger body.

[0004] The existing technology uses the gravity of the particles themselves to fall from the filter. In actual applications, these large particles also have a certain viscosity, so relying on gravity to fall is not enough, and certain assistance is required.

[0005] Therefore, it is necessary to design a shell and tube heat exchanger with strong practicality and continuous filtering effect. Utility Model Content

[0006] The purpose of the utility model is to provide a shell and tube heat exchanger with filtering effect to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a shell and tube heat exchanger with a filtering effect, comprising a shell, a feed port is fixedly connected to the top of the shell, a support frame is fixedly connected to the bottom of the shell, a motor is fixedly connected to one side of the shell, a rotating shaft is provided at the output end of the motor, a reciprocating mechanism and a vibrating mechanism are connected to one side of the rotating shaft, a scraper is connected to one side of the reciprocating mechanism, a support block is fixedly connected to the inside of the shell, a filter screen is slidably connected to the inside of the support block, the scraper and the filter screen correspond, and the vibration mechanism and the filter screen correspond.

[0008] According to the above technical solution, the reciprocating mechanism includes a rotating rod, the rotating rod is fixedly connected to the rotating shaft, one side of the rotating rod is rotatably connected to a rocker, and the rocker is rotatably connected to the scraper.

[0009] According to the above technical solution, two L-shaped blocks are fixedly connected to one side of the support block, and the scraper is slidably connected to the inside of the two L-shaped blocks.

[0010] According to the above technical solution, the connection between the rotating rod and the rocker is located in the middle of the rocker.

[0011] According to the above technical solution, the vibration mechanism includes a round block, which is fixedly connected to the rotating shaft, a round groove is provided inside the round block, a positioning block is fixedly connected to one side of the support block, a moving block is slidably connected to the inside of the positioning block, a protrusion is rotatably connected to one side of the moving block, the protrusion corresponds to the round groove, and the moving block corresponds to the filter.

[0012] According to the above technical solution, a square groove is opened inside the supporting block, the square groove is located at the bottom of the filter screen, and the square groove corresponds to the moving block.

[0013] According to the above technical solution, the connection portion between the rotating shaft and the round block is located at an eccentric position of the round block.

[0014] According to the above technical solution, four springs are fixedly connected to the top of the filter screen, and the other end of the spring is fixedly connected to the inside of the support block.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] (1) By providing a reciprocating mechanism and a vibrating mechanism, the scraper can scrape the surface of the filter back and forth, effectively scraping away impurities and particles accumulated on the filter. This automatic cleaning function can maintain the permeability of the filter and prevent clogging, thereby ensuring that the fluid can pass smoothly and maintaining the heat exchange efficiency of the heat exchanger. At the same time, the vibration mechanism can cause particles inside the small holes of the filter to fall off, further ensuring the filtering effect;

[0017] (2) By providing a motor, the device only uses one motor to complete the reciprocating and vibrating motions at the same time, saving equipment and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a partial three-dimensional schematic diagram of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the reciprocating mechanism of the utility model;

[0021] Figure 4 It is a partial three-dimensional schematic diagram of the utility model;

[0022] Figure 5 It is a three-dimensional schematic diagram of the vibration mechanism of the utility model;

[0023] In the figure: 1. Shell; 11. Feed inlet; 12. Support frame; 13. Support block; 14. Filter screen; 15. L-shaped block; 16. Spring; 17. Positioning block; 18. Square groove; 2. Motor; 21. Rotating shaft; 22. Rotating rod; 23. Rocker; 24. Scraper; 3. Round block; 31. Round groove; 32. Bump; 33. Moving block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5The utility model provides a technical solution: a shell and tube heat exchanger with filtering effect, comprising a shell 1, a feed port 11 is fixedly connected to the top of the shell 1, a support frame 12 is fixedly connected to the bottom of the shell 1, a motor 2 is fixedly connected to one side of the shell 1, a rotating shaft 21 is provided at the output end of the motor 2, a reciprocating mechanism and a vibrating mechanism are connected to one side of the rotating shaft 21, a scraper 24 is connected to one side of the reciprocating mechanism, a support block 13 is fixedly connected to the inside of the shell 1, a filter screen 14 is slidably connected to the inside of the support block 13, and the scraper 24 and the filter screen 14 are mutually connected. Correspondingly, the vibration mechanism corresponds to the filter 14; when the staff starts working, the staff adds liquid from the feed port 11 to the inside, and the added liquid will flow through the filter 14 and then to the inside. There will be impurities in the liquid, and the impurities will be attached to the surface of the filter 14. At this time, the staff turns on the motor 2, and the rotating shaft 21 at the output end rotates, so that the reciprocating mechanism and the vibration mechanism move at the same time. The reciprocating mechanism scrapes the surface of the filter 14 with the scraper 24, and the vibration mechanism knocks the filter 14 to make the particles inside fall. By providing a reciprocating mechanism and a scraper 24, the automatic scraping and cleaning of the filter 14 is realized, which greatly improves the cleaning efficiency, reduces the need for manual intervention, and ensures the filtering effect. By providing a vibration mechanism, knocking the filter 14 makes it easier to fall off the particles and impurities attached to it. This vibration-assisted cleaning method can more effectively remove fine particles in the pores of the filter 14, further improving the filtering effect. The device only uses one motor 2 to complete two movements, saving the device and saving costs.

[0026] The reciprocating mechanism includes a rotating rod 22, which is fixedly connected to the rotating shaft 21, and a rocker 23 is rotatably connected to one side of the rotating rod 22, and the rocker 23 is rotatably connected to the scraper 24; when the staff turns on the motor 2, the rotating shaft 21 rotates, and the rotating rod 22 rotates, so that when the rotating rod 22 rotates, the rocker 23 will be pushed outward or pulled back, and the rotatable connection can not limit their rotation, so the scraper 24 can move back and forth on the surface of the filter 14. By providing a reciprocating mechanism, the device can scrape the surface of the filter 14 back and forth, effectively scraping off the impurities and particulate matter accumulated on the filter 14. This automatic cleaning function can maintain the permeability of the filter 14 and prevent blockage, thereby ensuring that the fluid can pass smoothly and maintaining the heat exchange efficiency of the heat exchanger.

[0027] One side of the support block 13 is fixedly connected with two L-shaped blocks 15, and the scraper 24 is slidably connected to the inside of the two L-shaped blocks 15; the L-shaped block 15 can limit the moving direction of the scraper 24 to ensure that it always moves back and forth in that direction.

[0028] The connection between the rotating rod 22 and the rocker 23 is in the middle of the rocker 23; since the connection point is located in the middle of the rocker 23, when the rotating rod 22 drives the rocker 23, the forces at both ends of the rocker 23 are relatively balanced, which helps to reduce the twisting and bending stress of the rocker 23, thereby improving the stability and durability of the entire mechanism.

[0029] The vibration mechanism includes a round block 3, which is fixedly connected to the rotating shaft 21, and a round groove 31 is provided inside the round block 3. A positioning block 17 is fixedly connected to one side of the support block 13, and a moving block 33 is slidably connected inside the positioning block 17. A protrusion 32 is rotatably connected to one side of the moving block 33, and the protrusion 32 corresponds to the round groove 31, and the moving block 33 corresponds to the filter screen 14; when the motor 2 is started, the rotating shaft 21 rotates, the round block 3 rotates, and the protrusion 32 is located inside the round groove 31, because the protrusion 32 and the moving block 33 are rotatably connected, so when the round block 3 rotates, the protrusion 32 also rotates, rotating, and the two rotate at the same time. In the horizontal direction, the protrusion 32 is equivalent to being stationary, but in the vertical direction, the round block 3 will move up and down, so it will move the protrusion 32 and the moving block 33 up and down, and the moving block 33 will knock on the filter screen 14 when it moves up and down. By providing a vibration mechanism, the device can knock the filter screen 14 to cause particles in the small holes inside the filter screen 14 to fall off, thereby further ensuring the filtering effect of the filter screen 14.

[0030] A square groove 18 is provided inside the support block 13, and the square groove 18 is located at the bottom of the filter screen 14, and the square groove 18 corresponds to the moving block 33; one end of the moving block 33 is located inside the square groove 18, and the top of the square groove 18 is the filter screen 14. The horizontal block at the top of the square groove 18 can support the filter screen 14, and the moving block 33 can move up and down inside the square groove 18, thereby knocking the filter screen 14.

[0031] The connecting part between the rotating shaft 21 and the round block 3 is in an eccentric position of the round block 3; that is, the connecting part is not the center of the round block 3, but the side of the center. In this way, the round block 3 is equivalent to a cam. When the part with a large area of ​​the round block 3 is at the bottom, the moving block 33 is downward, and when the part with a small area of ​​the round block 3 is at the bottom, the moving block 33 is upward, thereby realizing up and down knocking.

[0032] Four springs 16 are fixedly connected to the top of the filter screen 14, and the other end of the spring 16 is fixedly connected to the inside of the support block 13; if the filter screen 14 is just stuck in the inside of the support block 13, the filter screen 14 will not move when knocked. Therefore, the spring 16 is inserted into the connection between the filter screen 14 and one end of the support block 13, so that when the filter screen 14 is upward, it presses against the spring 16. The spring 16 is compressed and has a rebound force, which will push the filter screen 14 downward, thus completing the up and down reciprocating knocking.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A shell and tube heat exchanger with filtering effect, comprising a shell (1), characterized in that: The top of the shell (1) is fixedly connected to a feed port (11), the bottom of the shell (1) is fixedly connected to a support frame (12), one side of the shell (1) is fixedly connected to a motor (2), the output end of the motor (2) is provided with a rotating shaft (21), one side of the rotating shaft (21) is connected to a reciprocating mechanism and a vibrating mechanism, one side of the reciprocating mechanism is connected to a scraper (24), the inside of the shell (1) is fixedly connected to a support block (13), the inside of the support block (13) is slidably connected to a filter screen (14), the scraper (24) corresponds to the filter screen (14), and the vibrating mechanism corresponds to the filter screen (14).

2. The shell and tube heat exchanger with filtering effect according to claim 1, characterized in that: The reciprocating mechanism comprises a rotating rod (22), the rotating rod (22) and the rotating shaft (21) are fixedly connected, one side of the rotating rod (22) is rotatably connected to a rocker (23), and the rocker (23) and the scraper (24) are rotatably connected.

3. The shell and tube heat exchanger with filtering effect according to claim 2, characterized in that: Two L-shaped blocks (15) are fixedly connected to one side of the support block (13), and the scraper (24) is slidably connected to the inside of the two L-shaped blocks (15).

4. The shell and tube heat exchanger with filtering effect according to claim 2, characterized in that: The connection point between the rotating rod (22) and the rocking arm (23) is located in the middle of the rocking arm (23).

5. The shell and tube heat exchanger with filtering effect according to claim 1, characterized in that: The vibration mechanism comprises a round block (3), the round block (3) is fixedly connected to a rotating shaft (21), a round groove (31) is provided inside the round block (3), a positioning block (17) is fixedly connected to one side of the support block (13), a moving block (33) is slidably connected to the inside of the positioning block (17), a convex block (32) is rotatably connected to one side of the moving block (33), the convex block (32) corresponds to the round groove (31), and the moving block (33) corresponds to the filter screen (14).

6. The shell and tube heat exchanger with filtering effect according to claim 5, characterized in that: A square groove (18) is provided inside the support block (13), the square groove (18) is located at the bottom of the filter screen (14), and the square groove (18) corresponds to the moving block (33).

7. The shell and tube heat exchanger with filtering effect according to claim 5, characterized in that: The connection portion between the rotating shaft (21) and the round block (3) is located at an eccentric position of the round block (3).

8. The shell and tube heat exchanger with filtering effect according to claim 5, characterized in that: Four springs (16) are fixedly connected to the top of the filter screen (14), and the other end of the spring (16) is fixedly connected to the inside of the support block (13).

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