A type of dry and wet heat exchange tube

Abstract

This utility model discloses a dual-purpose (dry and wet) heat exchange tube, belonging to the field of heat exchange technology. It includes a flat heat exchange tube with straight-through S-shaped fins connected to it. A partition plate is fixed inside the flat heat exchange tube, and a baffle plate is installed inside the tube. A connecting assembly is installed at the end of the tube, and a support and protective structure is snapped onto it. Using a flat heat exchange tube in conjunction with straight-through S-shaped fins achieves both dry and wet application, reducing equipment size. The straight-through S-shaped fins have low resistance, are easy to clean with cold water, have no dead corners, and are not prone to scaling. Even if scaling occurs, it can be thoroughly removed by using a descaling agent and high-pressure water rinsing without damaging the fins. The partition plate and baffle plate inside the flat heat exchange tube can change the flow state, increase turbulence, and thus improve heat exchange efficiency. The support and protective structure provides support for the flat heat exchange tube.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, and in particular to a heat exchange tube that can be used for both dry and wet applications. Background Technology

[0002] Air coolers are commonly used in industrial production. To improve the heat transfer efficiency on the air side, fins are often added to the air side of the heat exchange tubes to increase the heat exchange area. A drawback of this type of air cooler is that it can only be used for cooling dry air; its cooling effect is poor when the air temperature is high. To improve heat exchange efficiency, existing air coolers can be used for both dry and wet applications, utilizing air for cooling in low-temperature environments and water cooling in high-temperature environments.

[0003] However, existing dry-wet dual-purpose air coolers are divided into dry and wet cooling zones. In the dry cooling zone, finned tubes cannot be sprayed with water, as this easily leads to scale buildup, clogging the fins and reducing heat exchange efficiency. Furthermore, the scale cannot be removed using the industrially common method of "descaling agent and high-pressure water rinsing," as this can easily corrode or knock down the fins. If conventional round finned tubes are used, some areas on the back side remain unremoved during rinsing, resulting in incomplete cleaning. Additionally, existing dry-wet dual-purpose air coolers lack a support structure in the wet cooling zone; the heat exchange pipes rely solely on the connections and fins for support, which is generally ineffective. Moreover, during wet cooling, cold water rinsing can cause splashing, leading to rust at pipe connections and compromising pipe stability. Utility Model Content

[0004] The main purpose of this utility model is to provide a heat exchange tube that can be used for both dry and wet applications, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A dry and wet dual-purpose heat exchange tube includes a flat heat exchange tube with straight S-shaped fins connected to it. A partition plate is fixed inside the flat heat exchange tube, and a baffle is provided inside the flat heat exchange tube. A connecting component is installed at the end of the flat heat exchange tube, and a support and protection structure is snapped onto the flat heat exchange tube.

[0007] Preferably, the flat heat exchange tube is welded together with the straight-through S-shaped fins, and the partition plate is fixed together with the baffle plate.

[0008] Preferably, the connecting assembly includes a connecting sleeve, a slot, a fixing block, and a clamping screw. The slot is formed on the connecting sleeve, and the connecting sleeve is fixed to the end of the flat heat exchange tube. The fixing block is fixed on the connecting sleeve, and the fixing blocks are symmetrically arranged on the connecting sleeve. Threaded holes are formed through the connecting sleeve and the fixing block, and the clamping screw is connected to the threaded holes on the connecting sleeve and the fixing block.

[0009] Preferably, the support and protection structure includes a support plate, a U-shaped hole, and an elastic component. The U-shaped hole is formed on the support plate, and the support plate is snapped onto the flat heat exchange tube through the U-shaped hole. The support plate is arranged perpendicularly to the flat heat exchange tube. The elastic component is installed at both ends of the support plate, and the outer walls of the two outermost flat heat exchange tubes elastically abut against the elastic component.

[0010] Preferably, the elastic component includes a fixed plate, an elastic sheet, a cylinder, and a spring. The fixed plate is fixedly connected to the elastic sheet and is mounted on a support plate. The cylinder is fixed inside the fixed plate and the elastic sheet. The two ends of the spring are sleeved on the cylinder and respectively abut against the fixed plate and the elastic sheet.

[0011] Compared with the prior art, this utility model has the following beneficial effects: This dry and wet dual-purpose heat exchange tube adopts a flat heat exchange tube and is used in conjunction with straight-through S-shaped fins, which can achieve the effect of dry and wet use, reducing the size of the equipment. When the temperature is below 20℃, it can be directly air-cooled, saving water. When the temperature is above 20℃, water can be directly sprayed on the outside of the tube to meet the requirements of the production process. Moreover, the air volume can be reduced when spraying water, reducing the power consumption of the fan. The straight-through S-shaped fins have low resistance, are easy to wet-cooled and clean, have no dead corners, and are not easy to scale. Even if scale is formed, it can be completely removed by descaling agent and high-pressure water rinsing without damaging the fins. The partition plate and baffle plate set inside the flat heat exchange tube can divide and guide the medium, increase the heat exchange contact area, change the flow state, and increase the degree of turbulence, thereby improving the heat exchange effect. The set support and protection structure supports the flat heat exchange tube, ensuring the stability of the entire equipment. At the same time, it plays a protective role in wet cooling, preventing cold water splashing. The support plate is installed with elastic components, which can be quickly assembled and disassembled. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the flat heat exchange tube of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the connecting component of this utility model;

[0015] Figure 4This is a schematic diagram of the supporting and protective structure of this utility model;

[0016] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Flat heat exchange tube; 2. Straight-through S-shaped fins; 3. Partition plate; 4. Baffle plate; 5. Connecting assembly; 501. Connecting sleeve; 502. Slot; 503. Fixing block; 504. Tightening screw; 6. Support and protection structure; 601. Support plate; 602. U-shaped hole; 603. Elastic component; 6031. Fixing plate; 6032. Elastic sheet; 6033. Cylindrical column; 6034. Spring. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-5 As shown, a dual-purpose (wet and dry) heat exchanger tube includes a flat heat exchanger tube 1, with straight-through S-shaped fins 2 connected to the flat heat exchanger tube 1. A partition plate 3 is fixed inside the flat heat exchanger tube 1, and a baffle plate 4 is disposed inside the flat heat exchanger tube 1. A connecting assembly 5 is installed at the end of the flat heat exchanger tube 1, and a support and protective structure 6 is snapped onto the flat heat exchanger tube 1. The flat heat exchanger tube 1 is welded together with the straight-through S-shaped fins 2, and the partition plate 3 and the baffle plate 4 are fixed together.

[0020] During the installation of the heat exchange tubes, the flat heat exchange tube 1 is connected to the corresponding pipe using the connecting assembly 5. Supporting and protective structures 6 are installed at both ends of the flat heat exchange tube 1, and then heat exchange begins. During operation, the medium flows inside the flat heat exchange tube 1, and the medium's temperature is transferred to the straight-through S-shaped fins 2. When the air temperature is below 20℃, outside air flows directly through the gaps in the straight-through S-shaped fins 2, providing dry cooling for the medium. When the air temperature is above 20℃, cold water is sprayed onto the straight-through S-shaped fins 2, using the cold water to remove the heat from the fins, achieving wet cooling heat exchange. During heat exchange, the medium is diverted and guided by the partition plate 3 and the baffle plate 4, which can extend the medium's path, increase the heat exchange contact area, change the flow state, and increase the degree of turbulence, thereby improving the heat exchange effect.

[0021] If scale forms on the straight-through S-shaped fins 2, it can be thoroughly removed by using a descaling agent and high-pressure water rinsing. This will not damage the straight-through S-shaped fins 2, and since there are no dead corners during descaling, the descaling effect is ensured. When using the entire equipment, the support and protection structure 6 provides support and protection for the flat heat exchange tubes 1, ensuring their stability and preventing water splashing during wet cooling.

[0022] According to the above implementation scheme, the connecting component 5 includes a connecting sleeve 501, a slot 502, a fixing block 503, and a clamping screw 504. The slot 502 is opened on the connecting sleeve 501, and the connecting sleeve 501 is fixed to the end of the flat heat exchange tube 1. The fixing block 503 is fixed on the connecting sleeve 501, and the fixing blocks 503 are symmetrically arranged on the connecting sleeve 501. Threaded holes are opened through the connecting sleeve 501 and the fixing block 503. The clamping screw 504 is connected to the threaded holes on the connecting sleeve 501 and the fixing block 503.

[0023] When connecting the equipment, the corresponding pipe is inserted into the slot 502 on the connecting sleeve 501, and a clamping screw 504 is set on the fixing block 503. The pipe is connected and fixed by the clamping screw 504, and then the equipment can be used to realize the heat exchange of the medium.

[0024] According to the above implementation scheme, the support and protection structure 6 includes a support plate 601, a U-shaped hole 602 and an elastic component 603. The U-shaped hole 602 is opened on the support plate 601, and the support plate 601 is snapped onto the flat heat exchange tube 1 through the U-shaped hole 602. The support plate 601 is arranged perpendicularly to the flat heat exchange tube 1. The elastic component 603 is installed at both ends of the support plate 601, and the outer walls of the two outermost flat heat exchange tubes 1 elastically abut against the elastic component 603.

[0025] When installing the support and protection structure 6, the support plate 601 is placed at the end of the flat heat exchange tube 1 through the U-shaped hole 602. The elastic components 603 at both ends of the support plate 601 contact the outer wall of the outermost flat heat exchange tube 1, thereby completing the installation of the support and protection structure 6. In use, the support plate 601 provides support, ensuring the stability of the flat heat exchange tube 1. When wet cooling is performed, the support plate 601 can also act as a water barrier, preventing water from splashing onto the connecting component 5 and preventing rust and loosening of the connection.

[0026] The elastic component 603 includes a fixed plate 6031, an elastic sheet 6032, a cylinder 6033, and a spring 6034. The fixed plate 6031 is fixedly connected to the elastic sheet 6032 and is mounted on the support plate 601. The cylinder 6033 is fixed inside the fixed plate 6031 and the elastic sheet 6032. The two ends of the spring 6034 are sleeved on the cylinder 6033 and abut against the fixed plate 6031 and the elastic sheet 6032 respectively.

[0027] When installing the support plate 601, after the support plate 601 is snapped onto the flat heat exchange tube 1, the elastic sheet 6032 on the fixing plate 6031 elastically abuts against the outer wall of the outermost flat heat exchange tube 1. Under the action of the spring 6034 on the cylinder 6033, the elastic sheet 6032 has a good elastic abutment effect with the corresponding outer wall of the flat heat exchange tube 1, ensuring the stable installation of the support plate 601. After the support plate 601 is installed, it can be used.

[0028] It should be noted that the use of flat heat exchange tubes 1 in conjunction with straight-through S-shaped fins 2 can achieve both dry and wet cooling, reducing the size of the equipment. When the temperature is below 20℃, it can be directly air-cooled, saving water. When the temperature is above 20℃, water can be sprayed directly on the outside of the tubes to meet the requirements of the production process. Furthermore, water spraying can reduce air volume and fan power consumption. The straight-through S-shaped fins 2 have low resistance, making wet cooling and rinsing easy. There are no dead corners, and it is not easy to accumulate scale. Even if scale does occur, it can be completely removed by using descaling agent and high-pressure water rinsing without damaging the fins. The partition plate 3 and baffle plate 4 are set inside the flat heat exchange tube 1 to divide and guide the medium, increase the heat exchange contact area, change the flow state, and increase the degree of turbulence, thereby improving the heat exchange effect. The set support and protection structure 6 supports the flat heat exchange tube 1 to ensure the stability of the entire equipment. At the same time, it plays a protective role in wet cooling, preventing cold water splashing. The support plate 601 is installed using elastic components 603, which can be quickly assembled and disassembled.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dry-wet heat exchange tube, characterized in that: It includes a flat heat exchange tube (1), on which a straight S-shaped fin (2) is connected, and a partition plate (3) is fixed inside the flat heat exchange tube (1). A baffle plate (4) is provided inside the flat heat exchange tube (1). A connecting component (5) is installed at the end of the flat heat exchange tube (1), and a support and protection structure (6) is snapped onto the flat heat exchange tube (1).

2. The dry and wet combined heat exchange tube according to claim 1, characterized in that: The flat heat exchange tube (1) is welded together with the straight S-shaped fin (2), and the partition plate (3) is fixed together with the baffle plate (4).

3. A dual-purpose (dry and wet) heat exchange tube according to claim 2, characterized in that: The connecting assembly (5) includes a connecting sleeve (501), a slot (502), a fixing block (503), and a clamping screw (504). The slot (502) is opened on the connecting sleeve (501), and the connecting sleeve (501) is fixed to the end of the flat heat exchange tube (1). The fixing block (503) is fixed on the connecting sleeve (501), and the fixing blocks (503) are symmetrically arranged on the connecting sleeve (501). Threaded holes are opened through the connecting sleeve (501) and the fixing block (503). The clamping screw (504) is connected to the threaded holes on the connecting sleeve (501) and the fixing block (503).

4. A dual-purpose (dry and wet) heat exchange tube according to claim 3, characterized in that: The supporting and protective structure (6) includes a support plate (601), a U-shaped hole (602), and an elastic component (603). The U-shaped hole (602) is opened on the support plate (601), and the support plate (601) is snapped onto the flat heat exchange tube (1) through the U-shaped hole (602). The support plate (601) is arranged perpendicularly to the flat heat exchange tube (1). The elastic component (603) is installed at both ends of the support plate (601), and the outer walls of the two outermost flat heat exchange tubes (1) elastically abut against the elastic component (603).

5. A dual-purpose (dry and wet) heat exchange tube according to claim 4, characterized in that: The elastic component (603) includes a fixing plate (6031), an elastic sheet (6032), a cylinder (6033), and a spring (6034). The fixing plate (6031) is fixedly connected to the elastic sheet (6032) and is mounted on the support plate (601). The cylinder (6033) is fixed inside the fixing plate (6031) and the elastic sheet (6032). The two ends of the spring (6034) are sleeved on the cylinder (6033) and the two ends of the spring (6034) abut against the fixing plate (6031) and the elastic sheet (6032) respectively.

Images