High strength corrosion resistant finned evaporator

Abstract

The utility model discloses a high strength anticorrosive fin evaporator belongs to fin evaporator technical field, including support plate, pressing plate, fin and base pipe, and fin has a plurality of and laminated setting between support plate and pressing plate, and base pipe is through support plate, pressing plate and fin simultaneously, and the one end fixed limit piece of base pipe is located support plate away from pressing plate, and the one end fixed pressing piece of base pipe is located pressing plate away from support plate, and limit piece and support plate resist, and pressing piece and pressing plate resist, and the fixed interpenetration of fin has the connecting sleeve for the base pipe through, and the mutual resistance of connecting sleeve between, and the opposite two ends of connecting sleeve are equipped with convex and recess respectively, and between two connecting sleeves, and the mutual cooperation of convex and recess. The utility model discloses the fixed mode of the interpenetration of connecting sleeve between base pipe and fin is connected through, improves the structural strength of base pipe, and effectively prevents the corrosion situation of both connection surfaces easily, prolongs the service life of evaporator, guarantees the working performance.

Description

Technical Field

[0001] This utility model relates to the field of finned evaporator technology, and in particular, to a high-strength corrosion-resistant finned evaporator. Background Technology

[0002] Finned heat exchangers are highly efficient heat exchange devices that enhance heat exchange efficiency by increasing the heat dissipation area. They are mainly used in industrial production and daily life, and are widely used in chemical production, power industry, HVAC, and air conditioning. A finned heat exchanger mainly consists of a base tube and fins. The fins are tightly attached to the outer surface of the base tube. Heat from the environment surrounding the fins exchanges with the medium flowing inside the base tube, thus achieving efficient heat exchange between the hot and cold media.

[0003] The base tube and fins are the core components of an evaporator, and the way they are joined directly affects the evaporator's performance. Currently, there are generally three ways to connect the base tube and fins. The first method is mechanical riveting, which connects the fins and base tube together by mechanical pressure. This method provides a strong connection without heating, but the mechanical pressure can easily damage the base tube and fins, leading to reduced strength, corrosion, and oxidation, causing cracks or leaks. The second method is high-temperature welding, which ensures connection strength, but the high temperature generated during welding can cause oxidation on the surface of the base tube and fins, thus affecting the quality and lifespan of the weld. The third method is cold welding, which involves spraying a layer of metal adhesive onto the joint surfaces of the base tube and fins, and then allowing it to stand at room temperature for a period of time to form a fixed structure. This method makes it difficult to ensure uniform bonding, and the adhesive can be corrosive to the joint surfaces, resulting in poor corrosion resistance. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned defects in the prior art, a high-strength corrosion-resistant finned evaporator with high structural strength and corrosion resistance is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-strength corrosion-resistant finned evaporator, including a support plate, a pressure plate, fins and a base tube. The fins are multiple and stacked between the support plate and the pressure plate. The base tube passes through the support plate, the pressure plate and the fins. A limiting member is fixedly provided on the end of the base tube on the support plate away from the pressure plate. A clamping member is installed on the end of the base tube on the pressure plate away from the support plate. The limiting member abuts against the support plate and the clamping member abuts against the pressure plate. Connecting sleeves for the base tube to pass through are fixedly inserted on the fins. The connecting sleeves abut against each other. The opposite ends of the connecting sleeves are respectively provided with protrusions and grooves. Between two adjacent connecting sleeves, the protrusions and the grooves cooperate with each other.

[0006] Furthermore, the limiting member is an annular protrusion extending radially outward along the base tube, and the clamping member is a bolt installed on the base tube.

[0007] Furthermore, the base pipe includes a straight pipe section and an arc-shaped section. The limiting member and the clamping member are both disposed on the straight pipe section. There are multiple straight pipe sections and multiple arc-shaped sections. The multiple straight pipe sections are parallel to each other, and the arc-shaped sections are connected to the same side of two adjacent straight pipe sections.

[0008] Furthermore, the base tube has a double-layer structure with parallel layers, wherein one layer of the base tube is connected to the other layer of the base tube through the arc-shaped segment on one side.

[0009] Furthermore, both the protrusion and the groove are conical structures.

[0010] Furthermore, the fins are any one of flat fins, speckled fins, windowed fins, and corrugated fins.

[0011] Furthermore, the fins are aluminum sheets, and the base tube is a copper tube.

[0012] Furthermore, the high-strength corrosion-resistant finned evaporator also includes a connecting rod, which is fixedly connected between the support plate and the pressure plate.

[0013] Furthermore, both sides of the connecting rod are provided with threaded sections, and the threaded sections at both ends pass through the support plate and the pressure plate respectively. Locking nuts are installed on the threaded sections on both sides opposite to the support plate and on both sides opposite to the pressure plate.

[0014] The beneficial effects of this utility model are as follows: Compared with the existing technologies that combine mechanical riveting, high-temperature welding, and cold welding, the high-strength corrosion-resistant finned evaporator of this utility model uses a connecting sleeve insertion and compression fixing method to connect the base tube and the fins. This improves the structural strength of the base tube and effectively prevents the connection surface from being easily corroded, extending the service life of the evaporator and ensuring its working performance. At the same time, it is easy to assemble, greatly improves processing efficiency, and is easy to promote and use. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of the high-strength corrosion-resistant finned evaporator of this utility model;

[0017] Figure 2 yes Figure 1 A schematic diagram of the high-strength corrosion-resistant finned evaporator from another perspective;

[0018] Figure 3 yes Figure 1 The image shows a top view of a high-strength, corrosion-resistant finned evaporator.

[0019] Figure 4 yes Figure 3 The high-strength corrosion-resistant finned evaporator shown is a cross-sectional view along AA.

[0020] Figure 5 yes Figure 4 A magnified view of part B in the high-strength corrosion-resistant finned evaporator shown;

[0021] Figure 6 yes Figure 5 A schematic diagram of the middle connecting sleeve.

[0022] In the diagram: 1. Support plate, 2. Pressure plate, 3. Fin, 4. Base pipe, 41. Straight pipe section, 42. Arc section, 5. Limiting component, 6. Clamping component, 7. Connecting sleeve, 71. Protrusion, 72. Groove, 8. Connecting rod, 9. Locking nut. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] Please see Figures 1-3 This invention provides a high-strength, corrosion-resistant finned evaporator, comprising a support plate 1, a pressure plate 2, fins 3, and a base tube 4. The support plate 1 and pressure plate 2 are arranged opposite to each other. Multiple fins 3 are stacked between the support plate 1 and pressure plate 2. The base tube 4 penetrates the support plate 1, pressure plate 2, and fins 3. In use, a circulating working medium is introduced into the base tube 4. When the working medium evaporates, the heat from the air in the environment surrounding the fins 3 is absorbed by the vaporized working medium through the fins 3, thereby achieving a cooling effect. In this embodiment, the base tube 4 is a copper tube. Copper tubes have excellent thermal conductivity and corrosion resistance, ensuring the service life and heat exchange efficiency of the base tube 4. Of course, the base tube 4 can also be a steel tube or a stainless steel tube. Furthermore, the fins 3 are aluminum fins. Aluminum fins have advantages such as low density, light weight, and ease of transportation, and good thermal conductivity, improving heat exchange efficiency. Simultaneously, the dense oxide film formed on the surface of the aluminum fins prevents further oxidation and corrosion of the fins 3, providing good corrosion protection.

[0025] A limiting member 5 is fixedly installed on the end of the base tube 4 located on the support plate 1 away from the pressure plate 2, and a clamping member 6 is installed on the end of the base tube 4 located on the pressure plate 2 away from the support plate 1. The limiting member 5 abuts against the support plate 1, and the clamping member 6 abuts against the pressure plate 2. Under the action of the limiting member 5 and the clamping member 6, multiple fins 3 stacked between the support plate 1 and the pressure plate 2 are clamped and fixed, thereby realizing the mutual fixation between the fins 3 and the base tube 4.

[0026] In this embodiment, the limiting member 5 is an annular protrusion extending radially outward along the base tube 4, and the annular protrusion is welded and fixed to the base tube 4. The clamping member 6 is a bolt installed on the base tube 4. During assembly, the base tube 4 is first passed through the support plate 1, then multiple fins 3 are stacked and passed through the base tube 4, and finally the clamping member 6 is fitted onto the base tube 4. By screwing in the clamping member 6, the multiple fins 3 are finally pressed and fixed between the support plate 1 and the pressure plate 2. In other embodiments, the limiting member 5 can also be a bolt installed on the base tube 4. In this case, both ends of the base tube 4 are provided with external threads that mate with the bolts, and the middle part of the base tube 4 is provided with a smooth surface for the fins 3 to pass through.

[0027] Please see Figure 4 In this embodiment, the base pipe 4 includes a straight pipe section 41 and an arc-shaped section 42. The limiting member 5 and the clamping member 6 are both disposed on the straight pipe section 41. There are multiple straight pipe sections 41 and multiple arc-shaped sections 42, with the straight pipe sections 41 arranged parallel to each other. The arc-shaped sections 42 are connected to the same side of two adjacent straight pipe sections 41, thus forming an S-shaped structure for the base pipe 4. During assembly, the straight pipe section 41 is first passed through the support plate 1, the fins 3, and the pressure plate 2, and then the arc-shaped section 42 is fixedly connected to the straight pipe section 41 by welding.

[0028] As a preferred embodiment, the base pipe 4 is a double-layer structure that is parallel to each other. One layer of base pipe 4 is connected to the other layer of base pipe 4 through an arc-shaped segment 42 on one side, so that the two layers of base pipe 4 form a whole pipe that is interconnected. By setting the double-layer structure, the length of the base pipe 4 is extended, so that the support plate 1 and the pressure plate 2 can be fixed through more straight pipe segments 41, and the connection stability is guaranteed.

[0029] In this embodiment, fin 3 is a flat fin. In other embodiments, fin 3 can also be a dotted fin formed by setting multiple protrusions on a flat fin, or a windowed fin formed by opening multiple through slots on a flat fin, or a corrugated fin formed by setting the planar structure of the flat fin to a corrugated structure. The specific structural form of fin 3 can be any of the above, and is not limited here.

[0030] Please see Figure 5 , Figure 6Connecting sleeves 7 are fixedly inserted into the fins 3, and the connecting sleeves 7 abut against each other. The connecting sleeves 7 are fitted onto the straight pipe section 41 of the base pipe 4. Each end of the connecting sleeve 7 has a protrusion 71 and a groove 72, respectively. Between adjacent connecting sleeves 7, the protrusion 71 and the groove 72 engage with each other. During assembly, multiple connecting sleeves 7 are sequentially fitted onto the straight pipe section 41. When the clamping member 6 presses the pressure plate 2, the protrusion 71 and the groove 72 between adjacent connecting sleeves 7 engage with each other. The connecting sleeves 7 are made of aluminum or copper.

[0031] Because multiple connecting sleeves 7 are sequentially fitted onto the straight pipe section 41, the structural strength of the straight pipe section 41 is enhanced, and it also prevents foreign objects from contacting the straight pipe section 41, thus protecting the straight pipe section 41 and providing corrosion protection. Furthermore, the fit between the protrusion 71 and the groove 72 prevents relative movement and bending between adjacent connecting sleeves 7, effectively preventing the straight pipe section 41 from easily bending and deforming, and extending the service life of the straight pipe section 41.

[0032] In this embodiment, both the protrusion 71 and the groove 72 are conical structures.

[0033] Please refer to it again. Figure 1 The high-strength corrosion-resistant finned evaporator of this utility model also includes multiple connecting rods 8, which are fixedly connected between the support plate 1 and the pressure plate 2. By setting the connecting rods 8, the support plate 1 and the pressure plate 2 are relatively fixed to each other, thereby assisting the base tube 4 in fixing the support plate 1 and the pressure plate 2. In one specific embodiment, both ends of the connecting rods 8 are set as threaded sections, which pass through the support plate 1 and the pressure plate 2 respectively. Locking nuts 9 are installed on the threaded sections on both sides of the support plate 1 and on both sides of the pressure plate 2. By tightening the locking nuts 9 on both sides, the connecting rods 8 can be locked and fixed to the support plate 1 and the pressure plate 2. In this embodiment, the support plate 1 is roughly rectangular in shape, and there are four connecting rods 8, which are located at the four corners of the support plate 1.

[0034] Compared to the existing technologies that combine mechanical riveting, high-temperature welding, and cold welding, the high-strength corrosion-resistant finned evaporator of this invention uses a connecting sleeve 7 to connect the base tube 4 and the fins 3 by inserting and pressing them together. This improves the structural strength of the base tube 4 and effectively prevents the connection surface from being easily corroded, extending the service life of the evaporator and ensuring its working performance. At the same time, it is easy to assemble, greatly improving processing efficiency and facilitating its widespread use.

[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-strength, corrosion-resistant finned evaporator, comprising a support plate, a pressure plate, fins, and a base tube, wherein the fins are multiple and stacked between the support plate and the pressure plate, and the base tube passes through the support plate, the pressure plate, and the fins, characterized in that: A limiting member is fixedly provided on the base tube at the end of the support plate away from the pressure plate, and a clamping member is installed on the end of the base tube at the end of the pressure plate away from the support plate. The limiting member abuts against the support plate, and the clamping member abuts against the pressure plate. A connecting sleeve for the base tube to pass through is fixedly inserted on the fin. The connecting sleeves abut against each other. Each end of the connecting sleeve is provided with a protrusion and a groove, and the protrusion and the groove cooperate between two adjacent connecting sleeves.

2. The high-strength corrosion-resistant finned evaporator as described in claim 1, characterized in that: The limiting member is an annular protrusion extending radially outward along the base tube, and the clamping member is a bolt installed on the base tube.

3. The high-strength corrosion-resistant finned evaporator as described in claim 1 or 2, characterized in that: The base pipe includes a straight pipe section and an arc-shaped section. The limiting member and the clamping member are both disposed on the straight pipe section. There are multiple straight pipe sections and multiple arc-shaped sections. The multiple straight pipe sections are parallel to each other. The arc-shaped section is connected to the same side of two adjacent straight pipe sections.

4. The high-strength corrosion-resistant finned evaporator as described in claim 3, characterized in that: The base tube is a double-layer structure with parallel layers, and one layer of the base tube is connected to the other layer of the base tube by the arc-shaped segment on one side.

5. The high-strength corrosion-resistant finned evaporator as described in claim 1, characterized in that: Both the protrusion and the groove are conical structures.

6. The high-strength corrosion-resistant finned evaporator as described in claim 1, characterized in that: The fins are any one of flat fins, speckled fins, windowed fins, and corrugated fins.

7. The high-strength corrosion-resistant finned evaporator as described in claim 1, characterized in that: The fins are aluminum sheets, and the base tube is a copper tube.

8. The high-strength corrosion-resistant finned evaporator as described in claim 1, characterized in that: The high-strength corrosion-resistant finned evaporator also includes a connecting rod, which is fixedly connected between the support plate and the pressure plate.

9. The high-strength corrosion-resistant finned evaporator as described in claim 8, characterized in that: Both sides of the connecting rod are provided with threaded sections, and the threaded sections at both ends pass through the support plate and the pressure plate respectively. Locking nuts are installed on the threaded sections on both sides of the support plate and on both sides of the pressure plate.

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