A combined heat exchanger with a protective structure

Abstract

This utility model discloses a combined heat exchanger with a protective structure, including a heat exchanger, a mounting frame, and a mounting box. The mounting frame is provided with four sets of symmetrically distributed clamping blocks, which are distributed at the four corners of the heat exchanger. Two sets of symmetrically distributed first push rods and two sets of symmetrically distributed second push rods are slidably installed inside the mounting frame. Dampers are fixedly installed between the first and second push rods and the mounting frame. A third spring is fitted on the damper. Through the synergistic effect of the symmetrically distributed mounting frame and the multiple sets of clamping blocks, push rods, and dampers, external impacts or vibrations are effectively absorbed and buffered, reducing the risk of deformation and weld cracking of the heat exchanger caused by mechanical collisions or equipment vibrations.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a combined heat exchanger with a protective structure. Background Technology

[0002] A heat exchanger (also known as a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction, and is widely used in petrochemical, power, refrigeration, metallurgy and other fields. Its performance directly affects the energy efficiency and operating cost of the system. Traditional heat exchangers usually adopt shell-and-tube, plate or finned structures, which can meet basic heat exchange requirements, but still have many challenges under complex operating conditions.

[0003] Traditional heat exchangers often face problems such as mechanical shock, vibration and impurity blockage during operation, which affect their stability and service life. Under complex working conditions, external collisions or equipment vibrations can easily cause deformation of heat exchange pipelines or cracking of welds, which can lead to leakage risks. At the same time, particulate impurities in the fluid can easily accumulate at the inlet, reducing heat exchange efficiency or even blocking the flow channel, thus affecting the normal use of the heat exchanger. Utility Model Content

[0004] The purpose of this invention is to provide a combined heat exchanger with a protective structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A combined heat exchanger with a protective structure, comprising a heat exchanger, a mounting frame, and a mounting box. Two sets of mounting frames are symmetrically distributed on both sides of the heat exchanger and are fixedly connected by bolts or the like. Each mounting frame has four symmetrically distributed clamping blocks located at the four corners of the heat exchanger. Two sets of symmetrically distributed first push rods and two sets of symmetrically distributed second push rods are slidably installed within the mounting frame. Dampers are fixedly installed between the first and second push rods and the mounting frame, and a third spring is fitted onto each damper. The mounting box is fixedly installed at the inlet of the heat exchanger. Two sets of filter frames are provided within the mounting box, corresponding to the inlet of the heat exchanger. A swing frame is rotatably installed within the mounting box, and a roller brush is rotatably installed on the swing frame, with the roller brush fitting against the surface of the lower filter frame.

[0006] As a further preferred embodiment of this technical solution, the first push rod and the second push rod are vertically distributed, and the clamping block is slidably connected to a set of first push rods and a set of second push rods respectively.

[0007] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed clip frames are slidably installed inside the mounting box. The two sets of clip frames are symmetrically distributed on both sides of the filter frame, and the two sets of clip frames are movably engaged with the filter frame. A telescopic tube is provided between the two sets of clip frames and the mounting box. The two ends of the telescopic tube are fixedly connected to the clip frames and the mounting box, respectively. A bidirectional screw is rotatably installed inside the mounting box. The two ends of the bidirectional screw pass through the two sets of clip frames and are threadedly connected to the two sets of clip frames, respectively.

[0008] As a further preferred embodiment of this technical solution, the two sets of filter frames are rotatably connected to the mounting box via a rotating frame. A first gear is sleeved on the rotating frame, and a first rack is slidably installed inside the mounting box. The first rack meshes with the first gear, and a cylinder is fixedly installed inside the mounting box. The first rack is fixedly connected to the output end of the cylinder piston rod.

[0009] As a further preferred embodiment of this technical solution, a scraper is slidably mounted on the swing frame, the scraper is fitted with a roller brush, a first slide rod is fixedly mounted on the swing frame, the scraper is slidably sleeved with the first slide rod via a slider, two sets of symmetrically distributed first springs are sleeved on the first slide rod, the two ends of the two sets of first springs are respectively fixedly connected to the slider and the swing frame, and a cam is rotatably mounted on the swing frame, the cam is fitted with the slider.

[0010] As a further preferred embodiment of this technical solution, a second gear is sleeved on the swing frame, a second rack is slidably installed in the mounting box, the second rack is slidably connected to the mounting box via a slide, the second rack is meshed with the second gear, a second slide rod is fixedly installed in the mounting box, a connecting rod is rotatably installed on the slide, and a crank is rotatably installed in the mounting box, the crank being rotatably connected to the end of the connecting rod away from the slide via a rotating shaft.

[0011] As a further preferred embodiment of this technical solution, the slide is slidably sleeved with the second slide rod, and two sets of symmetrically distributed second springs are sleeved on the second slide rod, with the two ends of the second springs being fixedly connected to the slide and the mounting box, respectively.

[0012] This utility model provides a combined heat exchanger with a protective structure, which has the following beneficial effects:

[0013] (1) This utility model effectively absorbs and buffers external impacts or vibrations through the symmetrically distributed mounting brackets and the synergistic effect of multiple sets of clamps, push rods and dampers, reducing the risk of deformation and weld cracking of the heat exchanger caused by mechanical collisions or equipment vibrations. The vertical layout of the first push rod and the second push rod, combined with the spring damping system, further enhances the structural stability and extends the service life of the heat exchanger.

[0014] (2) This utility model can intercept particulate impurities in the fluid by installing a filter frame inside the box to prevent the flow channel from being blocked; the dual motion of the crank-driven swing frame swing and the roller brush rotation is used to achieve dynamic cleaning of the filter frame surface. At the same time, the scraper vibrates back and forth under the action of the cam and spring, automatically removing impurities attached to the roller brush surface, ensuring long-term stable filtration efficiency, reducing maintenance frequency and improving heat exchange efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the structural separation of the heat exchanger and mounting bracket of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0018] Figure 4 This is a schematic diagram of the internal structure of the mounting box of this utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;

[0020] Figure 6 This is a schematic diagram showing the structural separation of the swing frame and the roller brush of this utility model;

[0021] Figure 7 For the present utility model Figure 6 Enlarged view of the structure at point C;

[0022] In the diagram: 1. Heat exchanger; 2. Mounting bracket; 3. Mounting box; 4. Clamping block; 5. First push rod; 6. Second push rod; 7. Damper; 8. Third spring; 9. Filter frame; 10. Rotating frame; 11. First gear; 12. First rack; 13. Cylinder; 14. Frame; 15. Telescopic tube; 16. Double-acting screw; 17. Swing frame; 18. Roller brush; 19. Scraper; 20. Slider; 21. Cam; 22. First slide rod; 23. First spring; 24. Second gear; 25. Second rack; 26. Slide; 27. Second slide rod; 28. Second spring; 29. ​​Crank; 30. Connecting rod. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, a combined heat exchanger with a protective structure includes a heat exchanger 1, a mounting frame 2, and a mounting box 3. Two sets of mounting frames 2 are symmetrically distributed on both sides of the heat exchanger 1 and are fixedly connected by bolts, etc. Four sets of symmetrically distributed clamping blocks 4 are provided on the mounting frame 2, located at the four corners of the heat exchanger 1. Two sets of symmetrically distributed first push rods 5 and two sets of symmetrically distributed second push rods 6 are slidably installed inside the mounting frame 2. Dampers 7 are fixedly installed between the first push rods 5 and the second push rods 6 and the mounting frame 2, and a third spring 8 is fitted onto the damper 7. The mounting box 3 is fixedly installed at the water inlet of the heat exchanger 1. Two sets of filter frames 9 are provided inside the mounting box 3, corresponding to the water inlet of the heat exchanger 1. A swing frame 17 is rotatably installed inside the mounting box 3, and a roller brush 18 is rotatably installed on the swing frame 17. The first push rod 5 and the second push rod 6 are vertically distributed and fitted to the surface of the filter frame 9 below. The clamping block 4 is slidably connected to a set of first push rods 5 and a set of second push rods 6 respectively. The mounting brackets 2 symmetrically arranged on both sides of the heat exchanger 1 are fixedly connected by high-strength bolts to form a stable rigid support structure. The clamping blocks 4 at the four corners of the mounting bracket 2 precisely engage with the corners of the heat exchanger 1 to achieve multi-point positioning and fixation. When the equipment is subjected to external impact or operating vibration, the first push rod 5 and the second push rod 6 generate axial displacement in the sliding groove of the mounting bracket 2, pushing the clamping block 4 to make fine adjustment compensation. The damper 7 at the end of the push rod converts the instantaneous impact force into heat energy dissipation through the dual action of hydraulic buffer and the rebound of the third spring 8. At the same time, the elastic deformation of the third spring 8 can absorb the continuous vibration energy. This multi-stage buffer design can effectively attenuate mechanical vibrations of different frequencies, avoid heat exchange tube deformation or weld fatigue cracking caused by stress concentration, and significantly improve the impact resistance of the equipment under complex working conditions.

[0025] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, two sets of symmetrically distributed clamping frames 14 are slidably installed inside the mounting box 3. The two sets of clamping frames 14 are symmetrically distributed on both sides of the filter frame 9. The two sets of clamping frames 14 are movably engaged with the filter frame 9. Telescopic tubes 15 are provided between the two sets of clamping frames 14 and the mounting box 3. The two ends of the telescopic tubes 15 are fixedly connected to the clamping frames 14 and the mounting box 3, respectively. A bidirectional screw 16 is rotatably installed inside the mounting box 3. The two ends of the bidirectional screw 16 pass through the two sets of clamping frames 14 and are threadedly connected to the two sets of clamping frames 14, respectively. The two sets of filter frames 9 are rotatably connected to the mounting box 3 through a rotating frame 10. A first gear 11 is sleeved on the rotating frame 10. A first rack 12 is slidably installed inside the mounting box 3. The first rack 12 is meshed with the first gear 11. A cylinder 1 is fixedly installed inside the mounting box 3. 3. The first rack 12 is fixedly connected to the output end of the piston rod of the cylinder 13. A scraper 19 is slidably mounted on the swing frame 17, and the scraper 19 is fitted with the roller brush 18. A first slide rod 22 is fixedly mounted on the swing frame 17. The scraper 19 is slidably sleeved with the first slide rod 22 through the slider 20. Two sets of symmetrically distributed first springs 23 are sleeved on the first slide rod 22. The two ends of the two sets of first springs 23 are fixedly connected to the slider 20 and the swing frame 17, respectively. A cam 21 is rotatably mounted on the swing frame 17, and the cam 21 is fitted with the slider 20. A second gear 24 is sleeved on the swing frame 17. A second rack 25 is slidably mounted in the mounting box 3. The second rack 25 is slidably connected to the mounting box 3 through the slide frame. The second rack 25 is meshed with the second gear 24. A second slide rod 27 is fixedly installed inside the mounting box 3. A connecting rod 30 is rotatably installed on the slide. A crank 29 is rotatably installed inside the mounting box 3. The crank 29 is rotatably connected to the end of the connecting rod 30 away from the slide via a rotating shaft. The slide and the second slide rod 27 are slidably sleeved. Two sets of symmetrically distributed second springs 28 are sleeved on the second slide rod 27. The two ends of the second springs 28 are fixedly connected to the slide and the mounting box 3, respectively. When fluid enters through the inlet of the mounting box 3, the rotatable filter frame 9 can intercept impurities. After a period of use, a large amount of impurities adhere to a set of filter frames 9. The motor inside the mounting box 3 drives the bidirectional screw 16 to rotate, which, together with the two sets of mounting boxes 3, releases the two sets of clamping frames 14 from the filter frame 9. Then, the cylinder 13 starts and drives the first tooth. Sliding bar 12, in conjunction with the first gear 11, causes the rotating frame 10 to drive the two sets of filter frames 9 to change positions. After the position change between the two sets of filter frames 9 is completed, the bidirectional screw 16 rotates in the opposite direction, causing the two sets of retaining frames 14 to engage with the newly replaced filter frames 9, continuing the filtration process. The lower swing frame 17, driven by the crank 29 connecting rod mechanism, performs a fan-shaped reciprocating motion, driving the roller brush 18 to roll and clean along the filter screen surface. At the same time, the built-in motor drives the roller brush 18 to rotate at high speed, and the bristles form a cross cleaning trajectory with the filter screen. During the cleaning process, the cam 21 mechanism pushes the scraper 19 to move up and down along the slide bar. Combined with the vibration effect generated by the spring reset, the deposited impurities in the gaps of the roller brush 18 are completely removed. Through mechanical linkage, a closed-loop operation of filtration, cleaning, and sewage discharge is achieved.Ensure that heat exchanger 1 maintains optimal flow efficiency.

[0026] This utility model provides a combined heat exchanger with a protective structure. The specific working principle is as follows: Mounting brackets 2, symmetrically arranged on both sides of the heat exchanger 1, are fixedly connected by high-strength bolts to form a stable rigid support structure. Clamping blocks 4 at the four corners of the mounting brackets 2 precisely engage with the corners of the heat exchanger 1, achieving multi-point positioning and fixation. When the equipment is subjected to external impact or operational vibration, the first push rod 5 and the second push rod 6 generate axial displacement within the sliding groove of the mounting bracket 2, pushing the clamping blocks 4 for fine-tuning compensation. The damper 7 at the end of the push rod, through the dual action of hydraulic buffering and the rebound of the third spring 8, converts the instantaneous impact force into heat energy for dissipation. Simultaneously, the elastic deformation of the third spring 8 absorbs continuous vibration energy. This multi-stage buffering design effectively attenuates mechanical vibrations of different frequencies, avoiding stress concentration leading to heat exchanger tube deformation or weld fatigue cracking, significantly improving the equipment's impact resistance under complex operating conditions. When fluid enters through the inlet of the mounting box 3, a rotatable filter frame 9 intercepts impurities. After a period of use, a set of filter frames 9 accumulates impurities. A large amount of impurities are removed by the motor driving the bidirectional screw 16 inside the mounting box 3. This, in conjunction with the two sets of mounting boxes 3, releases the two sets of retaining frames 14 from the filter frame 9. Then, the cylinder 13 starts, driving the first rack 12 to slide. This, in conjunction with the first gear 11, causes the rotating frame 10 to move the two sets of filter frames 9 to change positions. After the position change between the two sets of filter frames 9 is completed, the bidirectional screw 16 rotates in the opposite direction, causing the two sets of retaining frames 14 to engage with the newly replaced filter frame 9, continuing the filtration process. The lower swing frame 17, driven by the crank 29 connecting rod mechanism, performs a fan-shaped reciprocating motion, driving the roller brush 18 to roll and clean along the filter screen surface. At the same time, the built-in motor drives the roller brush 18 to rotate at high speed, and the bristles form a cross cleaning trajectory with the filter screen. During the cleaning process, the cam 21 mechanism pushes the scraper 19 to move up and down along the slide bar. Combined with the vibration effect generated by the spring reset, the deposited impurities in the gaps of the roller brush 18 are completely removed. Through mechanical linkage, a closed-loop operation of filtration, cleaning, and sewage discharge is achieved, ensuring that the heat exchanger 1 continuously maintains the best flow efficiency.

[0027] 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 combined heat exchanger with a protective structure, comprising a heat exchanger (1), a mounting frame (2), and a mounting box (3), characterized in that: The mounting brackets (2) are provided in two sets, which are symmetrically distributed on both sides of the heat exchanger (1). The two sets of mounting brackets (2) are fixedly connected by bolts or the like. The mounting brackets (2) are provided with four sets of symmetrically distributed clamps (4), which are distributed at the four corners of the heat exchanger (1). Two sets of symmetrically distributed first push rods (5) are slidably installed in the mounting brackets (2), and two sets of symmetrically distributed second push rods (6) are slidably installed in the mounting brackets (2). The first push rods (5) and the second push rods (6) are connected by bolts or the like. A damper (7) is fixedly installed between the rod (6) and the mounting bracket (2). A third spring (8) is fitted on the damper (7). The mounting box (3) is fixedly installed at the inlet of the heat exchanger (1). Two sets of filter frames (9) are provided in the mounting box (3). The filter frames (9) are set in correspondence with the inlet of the heat exchanger (1). A swing frame (17) is rotatably installed in the mounting box (3). A roller brush (18) is rotatably installed on the swing frame (17). The roller brush (18) is attached to the surface of the filter frame (9) below.

2. A combined heat exchanger with a protective structure according to claim 1, characterized in that: The first push rod (5) and the second push rod (6) are vertically distributed, and the clamp (4) is slidably connected to a set of first push rods (5) and a set of second push rods (6) respectively.

3. A combined heat exchanger with a protective structure according to claim 1, characterized in that: Two sets of symmetrically distributed clip frames (14) are slidably installed inside the mounting box (3). The two sets of clip frames (14) are symmetrically distributed on both sides of the filter frame (9). The two sets of clip frames (14) are movably engaged with the filter frame (9). A telescopic tube (15) is provided between the two sets of clip frames (14) and the mounting box (3). The two ends of the telescopic tube (15) are fixedly connected to the clip frames (14) and the mounting box (3) respectively. A bidirectional screw (16) is rotatably installed inside the mounting box (3). The two ends of the bidirectional screw (16) pass through the two sets of clip frames (14) respectively and are threadedly connected to the two sets of clip frames (14) respectively.

4. A combined heat exchanger with a protective structure according to claim 1, characterized in that: The two sets of filter frames (9) are rotatably connected to the mounting box (3) via a rotating frame (10). A first gear (11) is sleeved on the rotating frame (10). A first rack (12) is slidably installed in the mounting box (3). The first rack (12) meshes with the first gear (11). A cylinder (13) is fixedly installed in the mounting box (3). The first rack (12) is fixedly connected to the output end of the piston rod of the cylinder (13).

5. A combined heat exchanger with a protective structure according to claim 1, characterized in that: A scraper (19) is slidably mounted on the swing frame (17). The scraper (19) is fitted with a roller brush (18). A first slide rod (22) is fixedly mounted on the swing frame (17). The scraper (19) is slidably connected to the first slide rod (22) through a slider (20). Two sets of symmetrically distributed first springs (23) are fitted on the first slide rod (22). The two ends of the two sets of first springs (23) are fixedly connected to the slider (20) and the swing frame (17) respectively. A cam (21) is rotatably mounted on the swing frame (17). The cam (21) is fitted with the slider (20).

6. A combined heat exchanger with a protective structure according to claim 1, characterized in that: A second gear (24) is sleeved on the swing frame (17). A second rack (25) is slidably installed in the mounting box (3). The second rack (25) is slidably connected to the mounting box (3) through the slide. The second rack (25) is meshed with the second gear (24). A second slide rod (27) is fixedly installed in the mounting box (3). A connecting rod (30) is rotatably installed on the slide. A crank (29) is rotatably installed in the mounting box (3). The crank (29) is rotatably connected to the end of the connecting rod (30) away from the slide through a rotating shaft.

7. A combined heat exchanger with a protective structure according to claim 6, characterized in that: The slide is slidably connected to the second slide rod (27), and two sets of symmetrically distributed second springs (28) are sleeved on the second slide rod (27). The two ends of the second springs (28) are fixedly connected to the slide and the mounting box (3) respectively.

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