Anti-blocking fin type heat exchanger

Abstract

The utility model relates to the technical field of fin type heat exchangers, and discloses an anti-blocking fin type heat exchanger which comprises a base tube used for introducing heat exchange liquid; the mounting ring is arranged between the two base pipes, a guide ring is arranged on the inner wall of the mounting ring in a sealing and rotating fit mode, and the guide ring rotates through a driving unit; the scraper is arranged in the base pipe, the end of the scraper is fixed to the guide ring, and the scraper is used for cleaning scale in the base pipe; and the driving unit drives the scraper to circumferentially move around the axis of the base tube through the guide ring. The device has the effects of conveniently cleaning scale attached to the inner wall of the base pipe and reducing blockage of the base pipe.

Description

Technical Field

[0001] The present application relates to the technical field of fin-type heat exchangers, and in particular to an anti-clogging fin-type heat exchanger. Background Art

[0002] Finned heat exchangers are highly efficient heat exchange devices widely used in industrial, air conditioning, refrigeration, and heating systems. They improve heat transfer efficiency by increasing the heat transfer area. They typically consist of a base tube with fins extending along the surface. This design allows the fluid to contact a larger surface area as it passes through, accelerating heat transfer.

[0003] Finned heat exchangers operate based on heat conduction and convection. When two fluids flow through the heat exchanger, the fins increase the contact area, transferring heat from the high-temperature fluid to the low-temperature fluid. The shape and layout of the fins optimize fluid flow, reducing flow resistance and improving heat transfer efficiency.

[0004] However, after long-term operation, scale and other deposits may accumulate in the internal pipes of finned heat exchangers, which can hinder fluid flow, reduce heat transfer efficiency, and may cause local overheating or damage to the heat exchanger. Utility Model Content

[0005] In order to facilitate the cleaning of scale attached to the inner wall of the base tube, the present application provides an anti-clogging fin-type heat exchanger.

[0006] The present application provides an anti-clogging fin heat exchanger adopting the following technical solution:

[0007] An anti-clogging fin heat exchanger, comprising:

[0008] Base pipe, used for introducing heat exchange liquid;

[0009] A mounting ring is installed between the two base pipes, and a guide ring is sealably rotatably fitted on the inner wall of the mounting ring, and the guide ring is rotated by a driving unit;

[0010] a scraper, placed inside the base pipe, with the end of the scraper fixed on the guide ring, for cleaning scale inside the base pipe;

[0011] The driving unit drives the scraper to move circumferentially around the axis of the base pipe through the guide ring.

[0012] Optionally, the scraper further comprises:

[0013] A cutter body, used for scraping scale attached to the inner wall of the base pipe;

[0014] A mounting rod is mounted on the end of the cutter body, and the mounting rod is mounted on the guide ring.

[0015] Optionally, a mounting hole is provided at the end of the guide ring, the mounting rod passes through the mounting hole, and a mounting nut is threadedly connected to the mounting rod, and the mounting nut is fixed to one end of the guide ring away from the cutter body.

[0016] Optionally, a plurality of limiting grooves distributed circumferentially along the axial direction of the mounting hole are provided on the inner wall of the mounting hole, and a limiting strip plugged into and engaged with the limiting grooves is provided on the mounting rod.

[0017] Optionally, the blade body is provided with a plurality of guide strips which form a predetermined inclination angle with the length direction of the blade body.

[0018] Optionally, a predetermined inclination angle is formed between the guide strip and the blade surface of the blade body.

[0019] Optionally, the driving unit further comprises:

[0020] A transmission rod is mounted on the outer wall of the guide ring. An annular guide groove is provided on the mounting ring. The transmission rod and the guide groove are in sliding engagement.

[0021] The toggle rod is mounted on the end of the transmission rod and drives the guide ring to rotate through the transmission rod.

[0022] Optionally, a protective cover for protecting the toggle rod is installed on the mounting seat.

[0023] Optionally, the protective cover is composed of two detachably connected cover bodies, and a protective area is formed between the two cover bodies.

[0024] Optionally, a positioning strip is provided on the cover body, and an annular positioning groove is provided on the outer wall of the mounting ring, and the positioning strip and the positioning groove are plug-fitted.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The mounting ring connects the two base pipes, allowing the heat transfer liquid to flow along their inner surfaces. The drive unit rotates the guide ring seal, which in turn drives the scraper to effectively scrape scale from the base pipes, reducing scale accumulation and improving heat transfer efficiency.

[0027] 2. When installing the scraper, insert the mounting rod into the mounting hole and tighten the mounting nut to secure the blade against the guide ring, improving the stability and convenience of scraper installation. At the same time, insert the positioning rod into the positioning hole and the limit bar into the corresponding limit slot to ensure that the scraper can maintain the predetermined inclination angle for a long time.

[0028] 3. The operator uses the lever to drive the transmission rod along the inner wall of the mounting groove, achieving efficient rotation of the guide ring. The inner wall of the mounting groove guides the transmission rod. A protective cover also protects the lever, reducing the risk of potential collision with the lever when the heat exchange fluid drives the scraper and guide ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram showing the relative positions of the mounting ring and the scraper in the embodiment of the present application.

[0031] Figure 3 It is a schematic diagram showing the relative positions of the mounting ring and the guide ring in the embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the scraper structure in the embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Base pipe; 2. Mounting ring; 21. Guide ring; 22. Mounting hole; 23. Limiting groove; 24. Guide groove; 25. Positioning groove; 3. Scraper; 31. Blade; 311. Guide strip; 312. Mounting nut; 32. Mounting rod; 321. Limiting strip; 4. Drive unit; 41. Transmission rod; 42. Toggle rod; 5. Protective cover; 51. Cover body; 52. Positioning strip. DETAILED DESCRIPTION

[0035] The following is combined with Figures 1-4 This application is described in further detail.

[0036] The embodiments of the present application disclose an anti-clogging fin heat exchanger.

[0037] A fin-type heat exchanger with anti-clogging functionality primarily consists of a base tube 1, a mounting ring 2, and scrapers 3. The mounting ring 2 is fixed between adjacent base tubes 1 in a sealing manner, ensuring a tight seal between them. The inner wall of the mounting ring 2 features a structure that rotatably engages with a guide ring 21. The guide ring 21 achieves rotation through connection to a drive unit 4. The scrapers 3 are evenly distributed on the guide ring 21, and their fixed installation ensures stable operation.

[0038] During the scale cleaning operation, the operation of the drive unit 4 drives the guide ring 21 to rotate, thereby causing the scraper 3 to move circumferentially along the axis of the inner wall of the base pipe 1, effectively scraping off the scale attached to the inner wall of the base pipe 1, thereby significantly reducing the accumulation of scale and reducing the possibility of clogging of the base pipe 1.

[0039] The scraper 3 is structurally designed to include a blade body 31 and a mounting rod 32 that is consistent in length with the blade body 31. The two are tightly combined through an integral molding process. One end of the mounting rod 32 is provided with a thread for connecting a mounting nut 312 to ensure that the scraper 3 is fixed.

[0040] The guide ring 21 is provided with a mounting hole 22 in the form of a through hole, the length direction of which is consistent with the axial direction, so as to ensure accurate positioning of the scraper 3 during installation.

[0041] During the installation of the scraper 3 to the guide ring 21, first insert the mounting rod 32 into the mounting hole 22, use the inner wall of the mounting hole 22 to accurately position the mounting rod 32, and then tighten the mounting nut 312 to make the blade body 31 firmly pressed against the guide ring 21, thereby improving the convenience and efficiency of the installation of the scraper 3.

[0042] To facilitate adjustment of the scraper blade 3's operating inclination angle, the mounting hole 22 is provided with a plurality of evenly spaced limiting grooves 23 arranged circumferentially along the axis of the mounting hole 22. The mounting rod 32 is provided with corresponding limiting strips 321 extending along the same length as the mounting rod 32. During installation, the limiting strips 321 are inserted into the corresponding limiting slots 23 according to the desired operating inclination angle of the scraper 3, enabling precise adjustment.

[0043] Several parallel guide strips 311 are welded to the surface of the base tube 1. These strips 311 form a predetermined angle with the blade 31 of the scraper 3 along their length. As the heat exchange liquid flows through the heat exchanger, the strips 311 effectively guide the liquid's rotational flow, promoting the liquid's scouring effect on scale deposited on the inner wall of the base tube 1 and effectively reducing scale adhesion. Furthermore, the angle of the scraper 3 can be adjusted to accommodate base tubes 1 of varying inner diameters.

[0044] The drive unit 4 consists of a transmission rod 41 and a toggle rod 42. The mounting ring 2 is provided with an annular guide groove 24. The transmission rod 41 is removably mounted on the outer wall of the guide ring 21 and slides into the guide groove 24. During movement, the walls of the guide groove 24 precisely limit and guide the transmission rod 41, ensuring stable operation of the transmission rod 41 and the guide ring 21.

[0045] The toggle lever 42 is fixed to the end of the transmission rod 41 , and the operator only needs to rotate the toggle lever 42 to realize the rotation of the guide ring 21 , thereby improving the convenience of the rotation operation.

[0046] In order to reduce the risk of damage caused by collision during operation of the toggle rod 42, a protective cover 5 is installed on the mounting seat. The protective cover 5 is composed of two cover bodies 51, which are firmly connected by a bolt and nut assembly to form an effective protection area.

[0047] In order to further reduce the movement of the cover body 51 on the mounting seat, a positioning strip 52 is specially designed on the cover body 51, and a ring-shaped positioning groove 25 is provided on the outer ring wall of the mounting ring 2 to cooperate with it. The positioning strip 52 is plugged into the positioning groove 25 to ensure the stable positioning of the cover body 51.

[0048] The operating principle of the wind turbine main shaft nondestructive testing device according to the present embodiment is as follows: A worker rotates the guide ring 21 by turning the toggle lever 42. The guide ring 21 then rotates the scraper 3 to effectively scrape away scale adhering to the inner wall of the base pipe 1, significantly reducing scale accumulation. The predetermined angle between the guide bar 311 and the blade surface of the blade body 31 further directs the heat exchange liquid toward the inner wall of the base pipe 1 when it strikes the guide bar 311, enhancing the flushing effect and improving the heat exchange efficiency of the heat exchanger.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An anti-clogging fin heat exchanger, characterized by: include; A base pipe (1) for introducing a heat exchange liquid; A mounting ring (2) is installed between the two base pipes (1), and a guide ring (21) is provided on the inner wall of the mounting ring (2) for sealing and rotational engagement, and the guide ring (21) is rotated by a driving unit (4); A scraper (3) is placed inside the base pipe (1), with the end of the scraper (3) fixed on the guide ring (21) and used for cleaning scale inside the base pipe (1); The driving unit (4) drives the scraper (3) to move circumferentially around the axis of the base pipe (1) through the guide ring (21).

2. The anti-clogging fin heat exchanger according to claim 1, characterized in that: The scraper (3) further comprises: A blade (31) is used to scrape off scale attached to the inner wall of the base pipe (1); A mounting rod (32) is mounted on the end of the blade body (31), and the mounting rod (32) is mounted on the guide ring (21).

3. The anti-clogging fin heat exchanger according to claim 2, characterized in that: The end of the guide ring (21) is provided with a mounting hole (22), the mounting rod (32) passes through the mounting hole (22), and a mounting nut (312) is threadedly connected to the mounting rod (32), and the mounting nut (312) is fixed to an end of the guide ring (21) away from the blade body (31).

4. The anti-clogging fin heat exchanger according to claim 3, characterized in that: The inner wall of the mounting hole (22) is provided with a plurality of limiting grooves (23) distributed circumferentially along the axial direction of the mounting hole (22), and the mounting rod (32) is provided with a limiting strip (321) pluggable with the limiting grooves (23).

5. The anti-clogging fin heat exchanger according to claim 2, characterized in that: The blade body (31) is provided with a plurality of guide strips (311) which form a predetermined inclination angle with the length direction of the blade body (31).

6. The anti-clogging fin heat exchanger according to claim 5, characterized in that: A predetermined inclination angle is formed between the guide strip (311) and the blade surface of the blade body (31).

7. The anti-clogging fin heat exchanger according to claim 1, characterized in that: The driving unit (4) further comprises: A transmission rod (41) is mounted on the outer wall of the guide ring (21); an annular guide groove (24) is provided on the mounting ring (2); and the transmission rod (41) and the guide groove (24) are in sliding engagement; The toggle rod (42) is mounted on the end of the transmission rod (41) and drives the guide ring (21) to rotate via the transmission rod (41).

8. The anti-clogging fin heat exchanger according to claim 7, characterized in that: A protective cover (5) for protecting the toggle rod (42) is detachably connected to the mounting ring (2).

9. The anti-clogging fin heat exchanger according to claim 8, characterized in that: The protective cover (5) is composed of two detachably connected cover bodies (51), and a protective area is formed between the two cover bodies (51).

10. The anti-clogging fin heat exchanger according to claim 9, characterized in that: The cover body (51) is provided with a positioning strip (52), and the outer wall of the mounting ring (2) is provided with an annular positioning groove (25), and the positioning strip (52) and the positioning groove (25) are plug-fitted.

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