Tubular heat exchanger with nano-composite graphite anticorrosive coating

Abstract

The utility model relates to the technical field of tubular heat exchangers, and discloses a nano-composite graphite anticorrosive coating tubular heat exchanger which comprises a mounting seat, a heat exchanger body is fixedly connected to the top of the mounting seat, a protection mechanism is arranged on the periphery of the heat exchanger body, a heat dissipation mechanism is arranged on the front side of the protection mechanism, and the protection mechanism comprises a supporting table. The supporting table is fixedly connected to the inner side of the mounting base, a connecting base is arranged at the top of the supporting table, a fixing frame is fixedly connected to the inner side of the connecting base, a fixing frame is slidably connected to the interior of the connecting base, and a limiting shaft is in threaded connection with the interior of the fixing frame. Firstly, the connecting base and the fixing frame are located at the top of the supporting table, meanwhile, the fixing frame is slidably connected into the mounting base and the connecting base, the fixing frame is fixed through the limiting shaft, mounting and dismounting are convenient, meanwhile, stability of the connecting base and the fixing frame can be guaranteed, and meanwhile the mounting frame is inserted into the bearing frame.

Description

Technical Field

[0001] This utility model relates to the field of tubular heat exchanger technology, specifically to a tubular heat exchanger with a nano-composite graphite anti-corrosion coating. Background Technology

[0002] Tubular heat exchangers utilize the flow of two fluids inside and outside the tube bundle, exchanging heat through the tube walls as the heat transfer surface. One fluid flows inside the tubes, called the tube-side fluid, and the other flows outside the tubes, called the shell-side fluid. Due to the temperature difference between the fluids inside and outside the tubes, heat is transferred from the high-temperature fluid to the low-temperature fluid, thus achieving the heat exchange process. In actual operation, tubular heat exchangers face severe corrosion challenges. Because existing tubular heat exchangers lack protective structures during use, they are easily subjected to impacts during long-term use. Under the combined effects of corrosion and erosion from high-temperature liquid, gas, or multiphase corrosive media, heat exchangers are prone to crevice corrosion, perforation, and even leakage.

[0003] In recent years, nanotechnology has been gradually applied to the field of heat exchanger corrosion protection. For example, silicon carbon nano-modified graphene anti-corrosion coating technology forms a coating by applying nano-coatings to the pipe body, which has the characteristics of good adhesion and excellent high temperature corrosion resistance.

[0004] According to the patent application published on the Internet, a tubular heat exchanger with good protective effect (authorization announcement number: CN218155711U) is described as including "strip plates, vertical grooves" and other features to achieve protective work.

[0005] Regarding the above description, the applicant believes the following issues exist:

[0006] This tubular heat exchanger with good protection uses strip plates, vertical grooves, etc. to achieve protection. During use, the heat exchanger is fixed to the outside of the heat exchanger by protective plates. However, the protected area is small and directly attached to the heat exchanger, which affects the heat dissipation effect. Therefore, this heat exchanger needs to be improved. Utility Model Content

[0007] The purpose of this invention is to provide a nanocomposite graphite anti-corrosion coated tubular heat exchanger to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a nano-composite graphite anti-corrosion coating tubular heat exchanger, including a mounting base, a heat exchanger body fixedly connected to the top of the mounting base, a protective mechanism provided around the heat exchanger body, and a heat dissipation mechanism provided in front of the protective mechanism.

[0009] The protective mechanism includes a support platform, which is fixedly connected to the inner side of the mounting base. A connecting seat is provided on the top of the support platform, and a fixed frame is fixedly connected to the inner side of the connecting seat. A fixed bracket is slidably connected inside the connecting seat. A limit shaft is threadedly connected inside the fixed bracket. A servo motor is fixedly connected to the front side of the fixed frame, and a bidirectional threaded rod is fixedly connected to the rear side of the servo motor. The bidirectional threaded rod is threadedly connected to a load-bearing frame. A mounting bracket is inserted inside the load-bearing frame, and a limit pin is threadedly connected inside the mounting bracket. A limit frame is fixedly connected to the inner side of the mounting bracket and slidably connected inside the fixed frame. A fixed plate is fixedly connected to the top of the mounting bracket, and a protective frame is fixedly connected to the rear side of the fixed plate. The protective frame is slidably connected to the periphery of the heat exchanger body.

[0010] Preferably, the bottom of the connecting seat is in contact with the top of the support platform, the rear side of the bidirectional threaded rod is rotatably connected to the fixed frame, and the load-bearing frame is slidably connected to the inside of the fixed frame, so that the mounting frame, the fixed plate and the protective frame can be moved under the action of the load-bearing frame.

[0011] Preferably, the fixing frame is slidably connected to the inside of the mounting base, the right side of the limiting shaft is threadedly connected to the inside of the mounting base, and the protective frame is slidably connected to the outside of the mounting base. This facilitates the stability between the fixing frame, the connecting base, and the mounting base under the action of the limiting shaft, and also facilitates installation and disassembly.

[0012] Preferably, the limiting pin passes through the inside of the load-bearing frame, and the mounting frame and the load-bearing frame are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The limiting pin is threaded into the fixing groove, which facilitates the stability between the mounting frame and the load-bearing frame under the action of the limiting pin.

[0013] Preferably, the load-bearing frame, mounting frame, limiting pin, limiting bracket, fixing plate, and protective frame are provided in two sets. The two sets of load-bearing frames, mounting frames, limiting pins, limiting brackets, fixing plates, and protective frames are symmetrically distributed around the bidirectional threaded rod, and the two sets of protective frames are slidably connected to the periphery of the heat exchanger body. By providing two sets, the comprehensive protection of the heat exchanger body can be improved.

[0014] Preferably, the protective frame has heat dissipation holes inside, and the heat dissipation holes are rectangular and circular, which facilitates the dissipation of heat generated by the heat exchanger body.

[0015] Preferably, the heat dissipation mechanism includes a shield, which is fixedly connected to the top front side of the protective frame. A protective box is fixedly connected to the inside of the shield, and the protective box is fixedly connected to the front side of the protective frame. A mounting frame is fixedly connected inside the protective box, and a fan is fixedly connected inside the mounting frame. A filter plate is fixedly connected to the front side inside the protective box.

[0016] Preferably, the protective box, mounting frame, fan and filter plate are provided in two sets, and the two sets of the protective box, mounting frame, fan and filter plate are symmetrically distributed inside the shield, so as to facilitate the heat exchanger body to be cooled by the fan.

[0017] Compared with the prior art, this utility model provides a nano-composite graphite anti-corrosion coating tubular heat exchanger, which has the following beneficial effects:

[0018] 1. This nano-composite graphite anti-corrosion coated tubular heat exchanger, through its protective mechanism, first positions the connecting seat and fixed frame on top of the support platform. Simultaneously, the fixed frame is slidably connected to the mounting seat and connecting seat, and secured by a limiting shaft. This not only facilitates installation and disassembly but also ensures the stability of the connecting seat and fixed frame. The mounting frame is then inserted into the load-bearing frame, and the limiting frame is slidably connected to the fixed frame, secured by a limiting pin. This ensures the stability of the fixed plate and protective frame. The limiting frame not only ensures the balanced movement of the mounting frame but also... The protective frame provides support. Once installed, the servo motor drives the load-bearing frame, which is connected to the outer thread of the bidirectional threaded rod, to move. This allows the load-bearing frame to move the mounting bracket, fixing plate, and protective frame, enabling the protective frame to slide onto the outer periphery of the heat exchanger body for protection and to prevent corrosion. The two symmetrically distributed protective frames enhance the protection of the heat exchanger body. Furthermore, the minimal exposure on the left and right sides of the heat exchanger body does not compromise its protective effect and facilitates natural airflow at both ends, providing some auxiliary heat dissipation.

[0019] 2. This nano-composite graphite anti-corrosion coated tubular heat exchanger, through the combination of a heat dissipation mechanism, shield, protective box, mounting frame, fan, and filter plate, allows the fan to introduce outside air, accelerating the airflow around the heat exchanger body and achieving efficient heat dissipation. The filter plate filters impurities in the air, preventing them from entering and affecting the heat exchanger performance. The symmetrical distribution of the two heat dissipation mechanisms further enhances the heat dissipation effect. At the same time, staff need to clean the impurities on the filter plate regularly, and the shield protects the heat dissipation holes inside the protective frame from rainwater ingress and corrosion. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the protective mechanism structure;

[0024] Figure 4 This is a schematic diagram of the inner structure of the connector.

[0025] Figure 5 This is a schematic diagram of the top structure of the load-bearing frame;

[0026] Figure 6 This is a schematic diagram of the heat dissipation mechanism.

[0027] In the diagram: 1. Mounting base; 2. Heat exchanger body; 3. Protective mechanism; 4. Heat dissipation mechanism; 31. Support platform; 32. Connecting seat; 33. Fixing frame; 34. Servo motor; 35. Protective frame; 36. Fixing bracket; 37. Limiting shaft; 38. Bidirectional threaded rod; 39. Load-bearing frame; 391. Mounting bracket; 392. Limiting pin; 393. Limiting bracket; 394. Fixing plate; 41. Shield; 42. Protective box; 43. Mounting frame; 44. Fan; 45. Filter plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] This utility model provides the following technical solution:

[0031] Example 1

[0032] Please see Figure 1-6This utility model provides a technical solution: a nano-composite graphite anti-corrosion coating tubular heat exchanger, including a mounting base 1, a heat exchanger body 2 fixedly connected to the top of the mounting base 1, a protective mechanism 3 arranged around the heat exchanger body 2, and a heat dissipation mechanism 4 arranged in front of the protective mechanism 3.

[0033] The protective mechanism 3 includes a support platform 31, which is fixedly connected to the inner side of the mounting base 1. A connecting base 32 is provided on the top of the support platform 31. A fixing frame 33 is fixedly connected to the inner side of the connecting base 32. A fixing bracket 36 is slidably connected inside the connecting base 32. A limiting shaft 37 is threadedly connected inside the fixing bracket 36. A servo motor 34 is fixedly connected to the front side of the fixing frame 33. A bidirectional threaded rod 38 is fixedly connected to the rear side of the servo motor 34. The bidirectional threaded rod 38 is threadedly connected to the outer side of the load-bearing frame 39. An installation bracket 391 is inserted into the inside of the load-bearing frame 39. A limiting pin 392 is threadedly connected inside the installation bracket 391. A limiting bracket 393 is fixedly connected to the inner side of the installation bracket 391. The limiting bracket 393 is slidably connected inside the fixing frame 33. A fixing plate 394 is fixedly connected to the top of the installation bracket 391. A protective frame 35 is fixedly connected to the rear side of the fixing plate 394. The protective frame 35 is slidably connected to the outer side of the heat exchanger body 2.

[0034] The bottom of the connecting seat 32 is in contact with the top of the support platform 31. The rear side of the bidirectional threaded rod 38 is rotatably connected to the fixed frame 33. The load-bearing frame 39 is slidably connected to the inside of the fixed frame 33, which facilitates the movement of the mounting frame 391, the fixed plate 394 and the protective frame 35 under the action of the load-bearing frame 39. The fixed frame 36 is slidably connected to the inside of the mounting base 1. The right side of the limiting shaft 37 is threadedly connected to the inside of the mounting base 1. The protective frame 35 is slidably connected to the outside of the mounting base 1, which facilitates the stability between the fixed frame 36, the connecting seat 32 and the mounting base 1 under the action of the limiting shaft 37, and also facilitates installation and disassembly.

[0035] The limiting pin 392 passes through the inside of the load-bearing frame 39. The mounting frame 391 and the load-bearing frame 39 are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The limiting pin 392 is threaded into the fixing groove, which facilitates the stability between the mounting frame 391 and the load-bearing frame 39 under the action of the limiting pin 392. The load-bearing frame 39, mounting frame 391, limiting pin 392, limiting frame 393, fixing plate 394 and protective frame 35 are provided in two sets. The two sets of load-bearing frames 39, mounting frame 391, limiting pin 392, limiting frame 393, fixing plate 394 and protective frame 35 are symmetrically distributed around the double-threaded rod 38, and the two sets of protective frames 35 are slidably connected to the outside of the heat exchanger body 2. By setting two sets, the comprehensive protection of the heat exchanger body 2 can be improved.

[0036] The protective frame 35 has heat dissipation holes inside, which are rectangular and circular, to facilitate the dissipation of heat generated by the heat exchanger body 2.

[0037] Example 2

[0038] Please see Figure 1-6 Furthermore, based on Embodiment 1, the heat dissipation mechanism 4 further includes a shield 41, which is fixedly connected to the top front side of the protective frame 35. A protective box 42 is fixedly connected to the inner side of the shield 41, and the protective box 42 is fixedly connected to the front side of the protective frame 35. A mounting frame 43 is fixedly connected inside the protective box 42, and a fan 44 is fixedly connected inside the mounting frame 43. A filter plate 45 is fixedly connected to the front side inside the protective box 42.

[0039] Two sets of protective boxes 42, mounting frames 43, fans 44 and filter plates 45 are provided. The two sets of protective boxes 42, mounting frames 43, fans 44 and filter plates 45 are symmetrically distributed inside the shield 41 to facilitate heat dissipation of the heat exchanger body 2 through the fans 44.

[0040] In actual operation, when this device is used, firstly, the connecting seat 32 and the fixed frame 33 are positioned on top of the support platform 31. At the same time, the fixed frame 36 is slidably connected to the mounting base 1 and the connecting seat 32. The fixed frame 36 is fixed by the limiting shaft 37, which not only facilitates installation and disassembly but also ensures the stability between the connecting seat 32 and the fixed frame 33 and the mounting base 1. Simultaneously, the mounting frame 391 is inserted into the load-bearing frame 39, and the limiting frame 393 is slidably connected to the fixed frame 33. The mounting frame 391 and the load-bearing frame 39 are fixed by the limiting pin 392, ensuring the stability of the fixed plate 394 and the protective frame 35. The limiting frame 393 not only ensures the balance of the movement of the mounting frame 391 but also provides support for the protective frame 35.

[0041] Once installation is complete, the servo motor 34 can drive the load-bearing frame 39, which is connected to the outer thread of the bidirectional threaded rod 38, to move. This allows the load-bearing frame 39 to move the mounting frame 391, the fixing plate 394, and the protective frame 35. The protective frame 35 is slidably connected to the outer periphery of the heat exchanger body 2 to protect it. This protection prevents the outer shell of the heat exchanger body 2 from being directly exposed to the external environment, reducing the erosion and pollution of the equipment by external factors such as rain, dust, and corrosive gases, thereby extending the service life of the equipment.

[0042] The two sets of symmetrically distributed protective frames 35 improve the protection effect of the heat exchanger body 2, and the left and right sides of the heat exchanger body 2 have less exposure, which not only does not affect the protection effect of the heat exchanger, but also helps the air to circulate naturally at both ends of the heat exchanger, playing a certain auxiliary heat dissipation role.

[0043] The combination of shield 41, protective box 42, mounting frame 43, fan 44 and filter plate 45 allows the fan 44 to introduce outside air, accelerate the airflow around the heat exchanger body 2, and achieve efficient heat dissipation. The filter plate 45 can filter impurities in the air to prevent them from entering and affecting the performance of the heat exchanger. The two sets of heat dissipation mechanisms 4 are symmetrically distributed to further improve the heat dissipation effect. At the same time, the staff needs to clean the impurities on the filter plate 45 regularly. Under the action of the shield 41, the heat dissipation holes inside the protective frame 35 can be protected to prevent rainwater from entering and causing corrosion.

[0044] The heat exchanger body 2 is existing technology. Those skilled in the art will clearly understand the specific working steps and principles of this equipment. During the production process, the heat exchanger body 2 undergoes degreasing, derusting, and drying treatments. Nano-graphite powder, resin base, curing agent, dispersant, and other components are mixed evenly according to a specific formula. The amount of nano-graphite powder added usually needs to be optimized based on specific anti-corrosion requirements and coating performance, generally around 5%-20% (mass fraction). For example, 10% nano-graphite powder is added to the epoxy resin base. Through high-speed stirring and ultrasonic dispersion, the nano-graphite powder is evenly dispersed in the coating. After mixing, the heat exchanger body 2 can be coated.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. Nanocomposite graphite anticorrosive coating tubular heat exchanger comprising a mounting seat (1), characterized in that: The mounting base (1) is fixedly connected to the top of the heat exchanger body (2), and a protective mechanism (3) is provided around the heat exchanger body (2). A heat dissipation mechanism (4) is provided on the front side of the protective mechanism (3). The protective mechanism (3) includes a support platform (31), which is fixedly connected to the inner side of the mounting base (1). A connecting seat (32) is provided on the top of the support platform (31). A fixed frame (33) is fixedly connected to the inner side of the connecting seat (32). A fixed bracket (36) is slidably connected inside the connecting seat (32). A limit shaft (37) is threadedly connected inside the fixed bracket (36). A servo motor (34) is fixedly connected to the front side of the fixed frame (33). A bidirectional threaded rod (38) is fixedly connected to the rear side of the servo motor (34). The bidirectional threaded rod (38) is threadedly connected to the load-bearing frame (39) on its outer periphery. An installation bracket (391) is inserted inside the load-bearing frame (39). A limiting pin (392) is threaded inside the installation bracket (391). A limiting bracket (393) is fixedly connected to the inner side of the installation bracket (391). The limiting bracket (393) is slidably connected to the inside of the fixed frame (33). A fixing plate (394) is fixedly connected to the top of the installation bracket (391). A protective frame (35) is fixedly connected to the rear side of the fixing plate (394). The protective frame (35) is slidably connected to the periphery of the heat exchanger body (2).

2. The nanocomposite graphite anticorrosive coated tubular heat exchanger according to claim 1, characterized in that: The bottom of the connecting seat (32) is in contact with the top of the support platform (31), the rear side of the bidirectional threaded rod (38) is rotatably connected to the fixed frame (33), and the load-bearing frame (39) is slidably connected to the inside of the fixed frame (33).

3. The nanocomposite graphite anticorrosive coated tubular heat exchanger as claimed in claim 1, wherein: The fixing frame (36) is slidably connected to the inside of the mounting base (1), the right side of the limiting shaft (37) is threadedly connected to the inside of the mounting base (1), and the protective frame (35) is slidably connected to the outside of the mounting base (1).

4. The nanocomposite graphite anticorrosive coated tubular heat exchanger as claimed in claim 1, wherein: The limiting pin (392) passes through the inside of the load-bearing frame (39). The mounting bracket (391) and the load-bearing frame (39) are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The limiting pin (392) is threaded into the fixing groove.

5. The nanocomposite graphite anticorrosive coated tubular heat exchanger as claimed in claim 1, wherein: The load-bearing frame (39), mounting frame (391), limiting pin (392), limiting frame (393), fixing plate (394) and protective frame (35) are provided in two sets. The two sets of load-bearing frame (39), mounting frame (391), limiting pin (392), limiting frame (393), fixing plate (394) and protective frame (35) are symmetrically distributed around the bidirectional threaded rod (38), and the two sets of protective frames (35) are slidably connected to the periphery of the heat exchanger body (2).

6. The nanocomposite graphite anticorrosive coated tubular heat exchanger as claimed in claim 1, wherein: The protective frame (35) has heat dissipation holes inside, and the heat dissipation holes are rectangular and circular.

7. The nanocomposite graphite anti-corrosion coating tubular heat exchanger according to claim 1, characterized in that: The heat dissipation mechanism (4) includes a shield (41), which is fixedly connected to the top front side of the protective frame (35). A protective box (42) is fixedly connected to the inside of the shield (41). The protective box (42) is fixedly connected to the front side of the protective frame (35). A mounting frame (43) is fixedly connected inside the protective box (42). A fan (44) is fixedly connected inside the mounting frame (43). A filter plate (45) is fixedly connected to the front side inside the protective box (42).

8. The nanocomposite graphite anticorrosive coated tubular heat exchanger as claimed in claim 7, wherein: The protective box (42), mounting frame (43), fan (44) and filter plate (45) are provided in two sets, and the two sets of the protective box (42), mounting frame (43), fan (44) and filter plate (45) are symmetrically distributed inside the shield (41).

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