Anti-scale plate-fin heat exchanger

Abstract

The utility model discloses an anti-scale plate-fin heat exchanger which comprises two sets of filter boxes and water distribution pipes, the water distribution pipes are symmetrically installed on the side walls of the filter boxes, a right water collecting pipe and a left water collecting pipe are arranged on the two sides of the filter boxes, the two sets of water distribution pipes are connected with the left water collecting pipe, and the right water collecting pipe is connected with the right water collecting pipe. Supporting frames are installed at the top ends of the water distribution pipes correspondingly, two sets of electric push rods are movably installed on the side walls of the supporting frames correspondingly, push arms are installed at the output ends of the electric push rods correspondingly, crank arms are installed at the ends, away from the electric push rods, of the push arms correspondingly, and the crank arms are connected with the right water collection pipe; and clamping shafts are mounted at the ends, close to the push arms, of the crank arms. According to the utility model, not only are convenient dual-channel prevention of scale generation in the pipeline realized, but also the filter screen is convenient to move, lift and replace, the filter screen is convenient to pertinently replace and quickly maintain and replace, and the replacement is flexible and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of plate-fin heat exchangers, in particular to an anti-scaling plate-fin heat exchanger. Background Art

[0002] Plate-fin heat exchangers are usually composed of baffles, fins, seals, and guide vanes. Fins, guide vanes, and seals are placed between two adjacent baffles to form a sandwich called a channel. Such sandwiches are stacked up according to different fluid flow patterns and brazed into a whole to form a plate bundle. The plate bundle is the core of the plate-fin heat exchanger. Traditional plate-fin heat exchangers are prone to dirt after being used for a period of time. In order to improve this situation, an anti-fouling plate-fin heat exchanger is proposed.

[0003] For example, an anti-scaling plate-fin heat exchanger disclosed in the authorization announcement number CN220339197U includes a heat exchanger body, and the symmetrical sides of the heat exchanger body are respectively provided with a refrigerant inlet, a heat medium inlet, a heat medium outlet and a refrigerant outlet, and also includes a filter unit connected to the refrigerant inlet and the heat medium inlet respectively, and the filter unit is connected to a feed pipe at a side away from the heat exchanger body, and the filter unit includes a filter box, and a filter plate is installed in the filter box through a fixing unit;

[0004] Although it realizes that by setting a symmetrical first inlet pipe and a second inlet pipe, the flow direction of the medium is controlled by the electric control valve on the first inlet pipe and the second inlet pipe, and by changing the direction in which the medium flows into the filter box, the movable plate is impacted, and the movable plate is moved by the impact and drives the cleaning plate to clean the surface of the filter plate, thereby preventing the filter plate from being blocked in a large area, achieving the effect of having an anti-scaling function while improving the cooling efficiency of the heat medium;

[0005] However, the problem that the existing plate-fin heat exchanger is not conducive to convenient dual-channel prevention of scaling inside the pipeline and convenient movement and lifting to replace the filter during use is not solved, which is not conducive to targeted replacement of the filter and rapid maintenance and replacement of the filter, affecting the flexibility and convenience of replacement. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-scaling plate-fin heat exchanger to solve the problem mentioned in the above background technology that the plate-fin heat exchanger is not convenient for convenient dual-channel prevention of scaling inside the pipeline and convenient movement and lifting to replace the filter, which is not conducive to targeted replacement of the filter and rapid maintenance and replacement of the filter, affecting the flexibility and convenience of replacement.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-scaling plate-fin heat exchanger, comprising a filter box and a water distribution pipe, the filter box is divided into two groups, the side walls of the filter box are symmetrically equipped with water distribution pipes, the two sides of the filter box are provided with a right water collecting pipe and a left water collecting pipe, and two groups of water pipes are connected to the left water collecting pipe, and the other two groups of water pipes are connected to the right water collecting pipe, the top of the water distribution pipe is installed with a support frame, the side walls of the support frame are movably equipped with two groups of electric push rods, and the electric push rods are movable. A push arm is installed at the output end, a crank arm is installed at the end of the push arm away from the electric push rod, a clamping shaft is installed at the end of the crank arm close to the push arm, and the crank arm is movably connected to the push arm through the clamping shaft, a movable shaft is movably installed inside the water distribution pipe, and the movable shaft is connected to the crank arm, a valve plate is installed on the surface of the movable shaft, and the valve plate is slidably connected to the inner wall of the water distribution pipe, a heat exchanger body is arranged outside the filter box, a water inlet pipe is installed on the side wall of the heat exchanger body, and the water inlet pipe is connected to the right water collecting pipe.

[0008] Preferably, a servo motor is symmetrically mounted on the inner wall of the filter box, and the servo motor is fixedly connected to the filter box.

[0009] Preferably, the output ends of the servo motors are all equipped with threaded rods, and the threaded rods are movably connected to the filter box.

[0010] Preferably, the surface of the threaded rod is covered with a threaded sleeve, and the threaded sleeve is threadedly connected to the threaded rod, and the threaded sleeve is slidably connected to the filter box.

[0011] Preferably, a filter screen is provided inside the filter box, a connecting block is installed on the side wall of the threaded sleeve, and the threaded sleeve is connected to the filter screen through the connecting block.

[0012] Preferably, a box door is installed at the top of the filter box, a rotating arm is installed at the top of the box door, a linkage shaft is installed at the center of the rotating arm, and the rotating arm is movably connected to the box door through the linkage shaft, and a sealing gasket is installed at the bottom of the box door.

[0013] Preferably, a U-shaped frame is installed on one side of the filter box, a hinge shaft is installed at the bottom end of the U-shaped frame, and the U-shaped frame is movably connected to the filter box through the hinge shaft, and a locking handle is installed at the top end of the U-shaped frame, and the locking handle is threadedly connected to the U-shaped frame.

[0014] Preferably, a pin is installed at one end of the rotating arm, and the rotating arm is movably connected to the filter box through the pin.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the plate-fin heat exchanger not only realizes the convenient dual-channel prevention of scaling inside the pipeline and the convenient movement and lifting to replace the filter, which facilitates the targeted replacement of the filter and the rapid maintenance and replacement of the filter, but also has the flexibility and convenience of replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the water distribution pipe of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the support frame of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the filter box of the utility model;

[0020] Figure 5 It is a schematic diagram of the side cross-sectional structure of the water distribution pipe of the utility model;

[0021] Figure 6 It is a side cross-sectional structural schematic diagram of the filter box of the utility model.

[0022] In the figure: 1. heat exchanger body; 2. water inlet pipe; 3. right water collecting pipe; 4. water distribution pipe; 5. support frame; 6. electric push rod; 7. push arm; 8. crank arm; 9. movable shaft; 10. filter box; 11. locking handle; 12. U-shaped frame; 13. hinge shaft; 14. linkage shaft; 15. rotating arm; 16. pin shaft; 17. valve plate; 18. servo motor; 19. threaded sleeve; 20. threaded rod; 21. filter screen; 22. connecting block; 23. box door; 24. sealing gasket; 25. clamping shaft; 26. left water collecting pipe. DETAILED DESCRIPTION

[0023] 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. 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.

[0024] See also Figure 1-6The utility model provides an embodiment: an anti-scaling plate-fin heat exchanger, including a filter box 10 and a water distribution pipe 4, the filter box 10 is divided into two groups, the side walls of the filter box 10 are symmetrically installed with water distribution pipes 4, the two sides of the filter box 10 are provided with a right water collection pipe 3 and a left water collection pipe 26, and two groups of water collection pipes 4 are connected to the left water collection pipe 26, and the other two groups of water collection pipes 4 are connected to the right water collection pipe 3, the top of the water distribution pipe 4 is installed with a support frame 5, and the side walls of the support frame 5 are movably installed with two groups of electric push rods 6, the electric push rods 6 play a role of power drive, and the electric push rods 6 The output ends of the water distribution pipes 4 are all equipped with push arms 7, and the ends of the push arms 7 away from the electric push rods 6 are all equipped with crank arms 8, and the ends of the crank arms 8 close to the push arms 7 are all equipped with clamping shafts 25, and the crank arms 8 are movably connected to the push arms 7 through the clamping shafts 25. The interior of the water distribution pipes 4 is movably equipped with movable shafts 9, and the movable shafts 9 are connected to the crank arms 8. The surfaces of the movable shafts 9 are all equipped with valve plates 17, and the valve plates 17 are slidably connected to the inner walls of the water distribution pipes 4. The outside of the filter box 10 is provided with a heat exchanger body 1, and a water inlet pipe 2 is installed on the side wall of the heat exchanger body 1, and the water inlet pipe 2 is connected to the right water collecting pipe 3;

[0025] First, the device is connected to an external controller and an external circuit, the right water collecting pipe 3 is connected to the water inlet pipe 2, and the external water source is connected to the left water collecting pipe 26. The water source enters the water distribution pipe 4 through the left water collecting pipe 26, and then enters the filter box 10. The filter screens 21 inside the two groups of filter boxes 10 intercept and filter large particles in the water to prevent them from precipitating, condensing and scaling inside the heat exchanger body 1. When one group of filter screens 21 needs to be replaced, the corresponding electric push rod 6 is controlled externally, and the electric push rod 6 drives the push arm 7 to move, and the push arm 7 drives the crank arm 8 to rotate through the clamping shaft 25, and the crank arm 8 drives the movable shaft 9 to rotate, and the movable shaft 9 drives the valve plate 17 to rotate to close it, so as to prevent water from entering the interior, and perform diversion maintenance and replacement on it, thereby realizing a convenient dual-channel to prevent scaling inside the pipeline, facilitating targeted replacement of the filter screen, and improving the flexibility of replacement;

[0026] A servo motor 18 is symmetrically mounted on the inner wall of the filter box 10. The servo motor 18 plays a role of power drive, and the servo motor 18 is fixedly connected to the filter box 10.

[0027] The output ends of the servo motors 18 are all equipped with threaded rods 20, and the threaded rods 20 are movably connected to the filter box 10;

[0028] The surface of the threaded rod 20 is covered with a threaded sleeve 19, and the threaded sleeve 19 is threadedly connected to the threaded rod 20, and the threaded sleeve 19 is slidably connected to the filter box 10, and the filter box 10 is provided with a filter screen 21 inside, and the side wall of the threaded sleeve 19 is installed with a connecting block 22, and the threaded sleeve 19 is connected to the filter screen 21 through the connecting block 22;

[0029] A box door 23 is installed at the top of the filter box 10, a rotating arm 15 is installed at the top of the box door 23, a linkage shaft 14 is installed at the center of the rotating arm 15, and the rotating arm 15 is movably connected to the box door 23 through the linkage shaft 14, a sealing gasket 24 is installed at the bottom of the box door 23, a U-shaped frame 12 is installed on one side of the filter box 10, a hinge shaft 13 is installed at the bottom of the U-shaped frame 12, and the U-shaped frame 12 is movably connected to the filter box 10 through the hinge shaft 13, a locking handle 11 is installed at the top of the U-shaped frame 12, and the locking handle 11 is threadedly connected to the U-shaped frame 12;

[0030] A pin shaft 16 is installed at one end of the rotating arm 15, and the rotating arm 15 is movably connected to the filter box 10 through the pin shaft 16;

[0031] When the filter needs to be replaced, first unscrew the locking handle 11 and rotate the U-shaped frame 12. The U-shaped frame 12 rotates with the hinge shaft 13 as the axis to separate the U-shaped frame 12 and the rotating arm 15. Rotate the rotating arm 15. Under the support of the filter box 10, the rotating arm 15 rotates with the pin shaft 16 as the axis. At the same time, the rotating arm 15 drives the box door 23 to rotate through the linkage shaft 14 to open the box door 23. Then, the servo motor 18 is opened through external control. The servo motor 18 drives the threaded rod 20 to rotate. Under the threaded connection between the threaded rod 20 and the threaded sleeve 19, and under the sliding cooperation between the threaded sleeve 19 and the filter box 10, the threaded sleeve 19 drives the filter 21 to move through the connecting block 22, so that the filter 21 is moved to the outside of the filter box 10 to maintain and replace the filter 21. After the replacement is completed, the above operation can be repeated in reverse to reset it, thereby realizing convenient movement and lifting to replace the filter, facilitating rapid maintenance and replacement of the filter, and improving the convenience of replacement.

[0032] Working principle: First, the water source enters the inside of the water distribution pipe 4 through the left water collecting pipe 26, and then enters the inside of the filter box 10. The filter screens 21 inside the two groups of filter boxes 10 intercept and filter the large particles in the water to prevent them from settling and condensing inside the heat exchanger body 1. When it is necessary to replace one of the groups of filter screens 21, the electric push rod 6 drives the push arm 7 to move, and the push arm 7 drives the crank arm 8 to rotate through the card shaft 25, and the crank arm 8 drives the movable shaft 9 to rotate, and the movable shaft 9 drives the valve plate 17 to rotate to close it, so as to prevent water from entering its interior, and perform diversion maintenance and replacement on it. When it is necessary to replace the filter screen, first lock it. The handle 11 is unscrewed, and the U-shaped frame 12 is rotated. The U-shaped frame 12 rotates around the hinge shaft 13 to separate the U-shaped frame 12 and the rotating arm 15. The rotating arm 15 is rotated. The rotating arm 15 rotates around the pin shaft 16. At the same time, the rotating arm 15 drives the box door 23 to rotate through the linkage shaft 14 to open the box door 23. The servo motor 18 drives the threaded rod 20 to rotate, and the threaded sleeve 19 drives the filter screen 21 to move through the connecting block 22 to move the filter screen 21 to the outside of the filter box 10 to maintain and replace the filter screen 21. After the replacement is completed, the above operation can be repeated in reverse to reset it to complete the use of the anti-scaling plate-fin heat exchanger.

Claims

1. An anti-scaling plate-fin heat exchanger, comprising a filter box (10) and a water distribution pipe (4), characterized in that: The filter box (10) is divided into two groups. The side walls of the filter box (10) are symmetrically equipped with water distribution pipes (4). The two sides of the filter box (10) are provided with a right water collection pipe (3) and a left water collection pipe (26). Two groups of water pipes (4) are connected to the left water collection pipe (26), and the other two groups of water pipes (4) are connected to the right water collection pipe (3). The top of the water distribution pipe (4) is equipped with a support frame (5). The side walls of the support frame (5) are movably equipped with two groups of electric push rods (6). The output ends of the electric push rods (6) are equipped with push arms (7). The push arms (7) are equipped with a push arm (7) at one end away from the electric push rod (6). There is a crank arm (8), one end of the crank arm (8) close to the push arm (7) is equipped with a clamping shaft (25), and the crank arm (8) is movably connected to the push arm (7) through the clamping shaft (25), the interior of the water distribution pipe (4) is movably equipped with a movable shaft (9), and the movable shaft (9) is connected to the crank arm (8), the surface of the movable shaft (9) is equipped with a valve plate (17), and the valve plate (17) is slidably connected to the inner wall of the water distribution pipe (4), and the outside of the filter box (10) is provided with a heat exchanger body (1), the side wall of the heat exchanger body (1) is equipped with a water inlet pipe (2), and the water inlet pipe (2) is connected to the right water collecting pipe (3).

2. The anti-scaling plate-fin heat exchanger according to claim 1, characterized in that: A servo motor (18) is symmetrically mounted on the inner wall of the filter box (10), and the servo motor (18) is fixedly connected to the filter box (10).

3. The anti-scaling plate-fin heat exchanger according to claim 2, characterized in that: The output ends of the servo motors (18) are all equipped with threaded rods (20), and the threaded rods (20) are movably connected to the filter box (10).

4. The anti-scaling plate-fin heat exchanger according to claim 3, characterized in that: The surface of the threaded rod (20) is sleeved with a threaded sleeve (19), the threaded sleeve (19) is threadedly connected to the threaded rod (20), and the threaded sleeve (19) is slidably connected to the filter box (10).

5. The anti-scaling plate-fin heat exchanger according to claim 4, characterized in that: The filter box (10) is provided with a filter screen (21) inside, the side wall of the threaded sleeve (19) is installed with a connecting block (22), and the threaded sleeve (19) is connected to the filter screen (21) through the connecting block (22).

6. The anti-scaling plate-fin heat exchanger according to claim 1, characterized in that: A box door (23) is installed at the top of the filter box (10), a rotating arm (15) is installed at the top of the box door (23), a linkage shaft (14) is installed at the center of the rotating arm (15), and the rotating arm (15) is movably connected to the box door (23) through the linkage shaft (14), and a sealing gasket (24) is installed at the bottom of the box door (23).

7. The anti-scaling plate-fin heat exchanger according to claim 1, characterized in that: A U-shaped frame (12) is installed on one side of the filter box (10), a hinge shaft (13) is installed at the bottom end of the U-shaped frame (12), and the U-shaped frame (12) is movably connected to the filter box (10) via the hinge shaft (13), and a locking handle (11) is installed at the top end of the U-shaped frame (12), and the locking handle (11) is threadedly connected to the U-shaped frame (12).

8. The anti-scaling plate-fin heat exchanger according to claim 6, characterized in that: A pin shaft (16) is installed at one end of the rotating arm (15), and the rotating arm (15) is movably connected to the filter box (10) via the pin shaft (16).

Images