Spiral heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a spiral heat exchanger which comprises a fixing column, a heat transfer plate is fixedly connected to the outer wall of the fixing column, a heat exchange assembly is arranged on the outer wall of the heat transfer plate, first connecting pipes are fixedly connected to the outer walls of the fixing column and the heat transfer plate, and sealing assemblies are arranged in the first connecting pipes. The sealing assembly comprises a plurality of sealing rings, each sealing ring is located in the corresponding first connecting pipe, the inner wall of each first connecting pipe is fixedly connected with a fixing ring, each fixing ring is clamped with the corresponding sealing ring, and the two sides of each first connecting pipe are fixedly connected with fixing blocks. According to the utility model, the sealing ring is extruded by the connecting pipe II, so that the sealing between the connecting pipe I and the connecting pipe II is realized, and meanwhile, the connecting pipe II is positioned by utilizing the clamping plate, so that the problems that part of internal gas is easy to leak and the heat conversion effect of equipment is influenced in the use process of the equipment are solved; and the sealing performance of the equipment is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a spiral heat exchanger. Background Technology

[0002] Spiral heat exchangers, as highly efficient heat exchange devices, are widely used in industrial production and many other fields. They achieve heat exchange by allowing two fluids at different temperatures to flow within a specific structure. These heat exchangers offer numerous advantages. Their unique structural design makes the heat exchange process more efficient, enabling a large heat exchange capacity within a smaller space, thus saving installation space and costs. Furthermore, spiral heat exchangers exhibit high stability during operation and can adapt to various types of fluid media, whether gaseous or liquid, effectively exchanging heat and providing a reliable solution for heat management in industrial processes.

[0003] In existing heat exchangers, the basic structure usually includes pipes for fluid inlet and outlet, and the main body that carries the heat exchange process. During operation, hot fluid and cold fluid enter the heat exchanger through their respective inlet pipes and flow in specific channels or spaces inside. Heat is transferred from the high-temperature fluid to the low-temperature fluid through heat conduction. After the heat exchange is completed, the fluid flows out through the outlet pipe. This working process is based on the traditional heat exchange principle and has been widely used in long-term industrial practice.

[0004] However, under current technology, spiral heat exchangers face a pressing problem. During long-term use at the connection points, some internal gas leaks out through the gaps in the connecting pipes. This gas leakage severely affects the heat conversion efficiency of the equipment because the leaked gas alters the originally designed fluid flow rate and heat exchange conditions, resulting in insufficient heat exchange, reduced overall equipment efficiency, and increased energy waste. Therefore, a spiral heat exchanger is proposed to address this issue. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a spiral heat exchanger, which aims to improve the problem that some gas inside the equipment is prone to leakage during use, thereby affecting the heat conversion effect of the equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A spiral heat exchanger includes a fixed column, a heat transfer plate fixedly connected to the outer wall of the fixed column, a heat exchange assembly provided on the outer wall of the heat transfer plate, and a connecting pipe fixedly connected to both the fixed column and the outer wall of the heat transfer plate, with a sealing assembly provided inside the connecting pipe.

[0008] The sealing assembly includes multiple sealing rings, each of which is located inside the first connecting pipe. A fixing ring is fixedly connected to the inner wall of each first connecting pipe, and each fixing ring engages with the sealing ring. A fixing block is fixedly connected to both sides of each first connecting pipe, and a clamping plate is provided on both sides of each fixing block. A spring is provided on both sides inside each clamping plate, and one end of each spring is fixedly connected to the outer wall of the fixing block. The other end of each spring is fixedly connected to the inside of the clamping plate. A third connecting pipe is provided on the inner wall of each clamping plate, and a second connecting pipe is fixedly connected to the outer wall of each third connecting pipe. Each second connecting pipe is in contact with the first connecting pipe.

[0009] As a further description of the above technical solution:

[0010] Each of the card plates is fixedly connected to both sides with a limiting strip, and one of the limiting strips is slidably connected to the inside of the card plate on the other side;

[0011] As a further description of the above technical solution:

[0012] Each of the card plates is fixedly connected to one side of a handle, and the heat transfer plate is fixedly connected to a support frame at the bottom.

[0013] As a further description of the above technical solution:

[0014] The heat exchange assembly includes multiple dustproof nets, the outer wall of each dustproof net being fixedly connected to the inner wall of the connecting pipe, and the dustproof nets are used to filter impurities in the gas;

[0015] As a further description of the above technical solution:

[0016] An arc-shaped connecting plate is fixedly connected to the inner wall of the heat transfer plate. The outer wall of the arc-shaped connecting plate is circular arc-shaped and is used for large-area connection between the inner walls of the heat transfer plate.

[0017] As a further description of the above technical solution:

[0018] The arc-shaped connecting plate has multiple circular holes inside, which are used to promote the flow of gas inside the equipment.

[0019] As a further description of the above technical solution:

[0020] Multiple positioning posts are fixedly connected between the heat transfer plate and the arc-shaped connecting plate. The positioning posts are used to limit the spacing between the inner walls of the heat transfer plate.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, the sealing ring is compressed by the second connecting pipe to achieve a seal between the first connecting pipe and the second connecting pipe. At the same time, the position of the second connecting pipe is positioned by the clamping plate, which solves the problem that some gas inside the equipment is prone to leakage during use, thereby affecting the heat conversion effect of the equipment and enhancing the sealing performance of the equipment.

[0023] In this invention, impurities in the gas are filtered by a dustproof net. At the same time, the contact area between the inner walls of the heat transfer plate is increased by using an arc-shaped connecting plate and a positioning column. Furthermore, the round holes inside the arc-shaped connecting plate are used to promote the rapid flow of gas. This solves the problem that impurities carried by the gas adhere to the inner wall of the equipment after entering the equipment, thus affecting the heat conversion and improving the heat conversion efficiency of the equipment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a spiral heat exchanger proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the arc-shaped connecting plate structure of a spiral heat exchanger proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the clamping plate structure of a spiral heat exchanger proposed in this utility model.

[0027] Legend:

[0028] 1. Fixed column; 2. Connecting pipe one; 3. Heat transfer plate; 4. Support frame; 5. Arc-shaped connecting plate; 6. Positioning column; 7. Fixing ring; 8. Sealing ring; 9. Dustproof net; 10. Connecting pipe two; 11. Connecting pipe three; 12. Clamping plate; 13. Fixing block; 14. Spring; 15. Limiting strip; 16. Handle. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1 and Figure 3 The present invention provides an embodiment of a spiral heat exchanger, comprising a fixed column 1, characterized in that: a heat transfer plate 3 is fixedly connected to the outer wall of the fixed column 1, a heat exchange component is provided on the outer wall of the heat transfer plate 3, and a connecting pipe 2 is fixedly connected to both the outer walls of the fixed column 1 and the heat transfer plate 3, and a sealing component is provided inside the connecting pipe 2.

[0031] The sealing assembly includes multiple sealing rings 8, which are generally made of rubber, soft and elastic, with a circular cross-section to effectively fill gaps and achieve a seal. Each sealing ring 8 is located inside the connecting pipe 2, which is usually made of metal with a smooth inner wall to ensure smooth fluid flow. A fixing ring 7 is fixedly connected to the inner wall of each connecting pipe 2. The fixing ring 7 is integrally formed with the connecting pipe 2 and is made of the same material. Each fixing ring 7 engages with the sealing ring 8. Fixing blocks 13 are fixedly connected to both sides of each connecting pipe 2. Each fixing block 13 has a retaining plate 12 on both sides. The retaining plate 12 is a thin metal plate with a smooth surface. Springs 14 are installed on both sides inside each retaining plate 12. One end of each spring 14 is fixedly connected to the outer wall of the fixing block 13. The other end of each spring 14 is fixedly connected to the inside of the card plate 12. The inner walls of both card plates 12 are provided with connecting tubes 3 and 11. The connecting tubes 3 and 11 are made of metal and are similar to connecting tube 1 and 2. The outer wall of each connecting tube 3 and 11 is fixedly connected with a connecting tube 2 and 10. The connecting tube 2 and 10 are also made of metal. Each connecting tube 2 and 10 fits into the connecting tube 1 and 2. Limiting strips 15 are fixedly connected to both sides of each card plate 12. The limiting strips 15 are made of metal and are long. One limiting strip 15 is slidably connected to the inside of the other card plate 12. A handle 16 is fixedly connected to one side of each card plate 12. The outer layer of the handle 16 can be covered with rubber or other anti-slip materials for easy operation. A support frame 4 is fixedly connected to the bottom of the heat transfer plate 3. The support frame 4 is made of metal and has a stable structure. It is used to support the heat transfer plate 3.

[0032] Specifically, during equipment use, pulling the handles 16 to both sides causes the clamping plates 12 on both sides to slide in opposite directions, thus stretching the springs 14. The extension of the springs 14 not only provides power for the movement of the clamping plates 12 but also ensures that after operation, the clamping plates 12 can quickly return to their predetermined positions due to the spring's rebound force. Simultaneously, during sliding, the clamping plates 12 move smoothly along the outer wall of the limiting strip 15. The limiting strip 15 acts as a guide, strictly limiting the movement trajectory of the clamping plates 12 and preventing excessive displacement or deviation from the designed track. During this process, the operator inserts connecting pipes 2 10 and 3 11 into connecting pipe 1 2. At this time, the sealing ring 8 is compressed between the two ends of the connecting pipe, forming an effective seal, ensuring no air or liquid leakage at the interface between connecting pipe 1 2 and connecting pipe 2 10. After the insertion is completed, the operator releases the handles 16, and the springs 14... The rebound force of the spring 14 quickly pushes the clamping plate 12 to one side of the connecting pipe 2 10, thereby tightly abutting the connecting pipe 2 10 and preventing it from shifting. At the same time, the limiting strip 15 further ensures that the clamping plate 12 can be stably kept in the correct position, enhancing its blocking effect on the connecting pipe 2 10. This not only enhances the sealing performance of the equipment and prevents the positional shift of the connecting pipe 2 10, but also effectively improves the overall reliability and durability of the equipment, ensuring the sealing performance between the connecting pipe 1 2 and the connecting pipe 2 10, and avoiding sealing failure caused by positional deviation.

[0033] Reference Figure 1 and Figure 2 The heat exchange assembly includes multiple dust filters 9, which are generally woven from stainless steel wire with fine and uniform mesh. The outer wall of each dust filter 9 is fixedly connected to the inner wall of a connecting pipe 2. The connecting pipe 2 is usually made of metal and has grooves or welding points on its inner wall to secure the dust filter 9. The dust filters 9 filter impurities in the gas, ensuring the purity of the gas entering the equipment. An arc-shaped connecting plate 5 is fixedly connected to the inner wall of the heat transfer plate 3. The arc-shaped connecting plate 5 is made of high-strength alloy material and has good... It has high temperature and corrosion resistance. Its outer wall is arc-shaped and the radius of the arc is designed according to the size of the heat transfer plate 3. It is used to connect the inner walls of the heat transfer plate 3 over a large area. The arc-shaped connecting plate 5 has multiple round holes evenly distributed inside. The round holes are used to promote the flow of gas inside the equipment. Multiple positioning posts 6 are fixedly connected between the heat transfer plate 3 and the arc-shaped connecting plate 5. The positioning posts 6 are generally columnar metal bodies. Their length is determined according to the distance between the heat transfer plate 3 and the arc-shaped connecting plate 5. The positioning posts 6 are used to limit the spacing between the inner walls of the heat transfer plate 3.

[0034] Specifically, when cold and hot air enter the equipment through connecting pipe 311, they first pass through a dust filter 9. The main function of the dust filter 9 is to effectively screen and filter impurities in the gas, preventing particulate matter, dust, or other tiny contaminants from entering the equipment. If these impurities enter the equipment, they will cause wear on various components, especially affecting the heat conversion efficiency and even causing equipment failure. The dust filter 9 ensures that the gas entering the equipment is purer, thus avoiding the potential threat of impurities to equipment performance, extending the equipment's service life, and ensuring that the equipment operates in optimal condition. The gas filtered by the dust filter 9 will then flow through the structure between the arc-shaped connecting plate 5 and the positioning column 6, entering the heat transfer plate 3 for heat exchange. The arc-shaped connecting plate 5 and the heat transfer plate... The contact area between the gas and heat transfer plate 3 is enhanced. The arc-shaped connecting plate 5 not only provides more stable support, but also increases the contact area between the gas and the heat transfer plate 3 through its curved shape. The increased contact area helps to improve the heat transfer efficiency, so that the heat in the gas can be transferred to the heat transfer plate 3 more effectively, thereby promoting the heat exchange process of the equipment. In addition, the heat exchange efficiency can be further improved when the gas passes through the circular hole inside the arc-shaped connecting plate 5. When the gas passes through the circular hole, it will be affected by the geometry, and the flow rate will be accelerated. At the same time, due to the restriction effect of the circular hole, the gas pressure will be moderately reduced. By reducing the gas pressure, the energy loss in the heat transfer process is reduced, so that the heat can be transferred to the heat transfer plate 3 more quickly through the gas, thereby accelerating the heat transfer and making the heat exchange inside the equipment more efficient.

[0035] Working principle: During equipment use, pulling the handles 16 to both sides causes the two clamping plates 12 to move to opposite sides, stretching the springs 14. Simultaneously, the clamping plates 12 slide against the outer wall of the limiting strip 15, which restricts their movement. Then, connecting pipes 2 10 and 3 11 are inserted into connecting pipe 1 2, compressing the sealing ring 8 to seal the connection between connecting pipe 1 2 and connecting pipe 2 10. Releasing the pull on the handles 16 allows the springs 14 to push the clamping plates 12 to one side of connecting pipe 2 10, thus blocking that side and simultaneously utilizing the limiting strip. Strip 15 enhances the blocking effect of the clamping plate 12 on the connecting pipe 2 10, preventing the connecting pipe 2 10 from shifting and affecting the sealing effect of the sealing ring 8 between the connecting pipe 1 2 and the connecting pipe 2 10, thus improving the sealing performance of the equipment. When cold and hot air enter the equipment through the connecting pipe 3 11, the dust filter 9 filters impurities in the gas to prevent impurities from entering the equipment and affecting the heat conversion efficiency. At the same time, the arc-shaped connecting plate 5 and the positioning column 6 enhance the contact area between the heat transfer plate 3. When the gas heat passes through the round hole inside the arc-shaped connecting plate 5, the round hole reduces the heat pressure and increases the heat flow rate, so that the heat can be transferred more quickly and improve the heat conversion efficiency of the equipment.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spiral heat exchanger, comprising a fixed column (1), characterized in that: A heat transfer plate (3) is fixedly connected to the outer wall of the fixed column (1). A heat exchange component is provided on the outer wall of the heat transfer plate (3). A connecting pipe (2) is fixedly connected to the outer walls of both the fixed column (1) and the heat transfer plate (3). A sealing component is provided inside the connecting pipe (2). The sealing assembly includes multiple sealing rings (8), each sealing ring (8) is located inside the first connecting pipe (2), each connecting pipe (2) is fixedly connected to a fixing ring (7) on its inner wall, each fixing ring (7) engages with the sealing ring (8), each connecting pipe (2) is fixedly connected to two sides of a fixing block (13), each fixing block (13) is provided with a clamping plate (12) on both sides of a clamping plate (12), each clamping plate (12) is provided with a spring (14) on both sides of its interior, one end of each spring (14) is fixedly connected to the outer wall of the fixing block (13), and the other end of each spring (14) is fixedly connected to the interior of the clamping plate (12), each clamping plate (12) is provided with a third connecting pipe (11) on the inner wall of both sides of the clamping plate (12), each third connecting pipe (11) is fixedly connected to a second connecting pipe (10) on its outer wall, and each second connecting pipe (10) is in contact with the first connecting pipe (2).

2. A spiral heat exchanger according to claim 1, characterized in that: Each of the card plates (12) is fixedly connected to two sides with a limiting strip (15), and one side of the limiting strip (15) is slidably connected to the inside of the other side of the card plate (12).

3. A spiral heat exchanger according to claim 2, characterized in that: Each of the card plates (12) is fixedly connected to a handle (16) on one side, and a support frame (4) is fixedly connected to the bottom of the heat transfer plate (3).

4. A spiral heat exchanger according to claim 1, characterized in that: The heat exchange assembly includes multiple dust screens (9), the outer wall of each dust screen (9) is fixedly connected to the inner wall of the connecting pipe (2), and the dust screen (9) is used to filter impurities in the gas.

5. A spiral heat exchanger according to claim 4, characterized in that: The inner wall of the heat transfer plate (3) is fixedly connected to an arc-shaped connecting plate (5), and the outer wall of the arc-shaped connecting plate (5) is an arc-shaped surface, which is used to connect the inner walls of the heat transfer plate (3) over a large area.

6. A spiral heat exchanger according to claim 5, characterized in that: The arc-shaped connecting plate (5) has multiple round holes inside, which are used to promote the flow of gas inside the equipment.

7. A spiral heat exchanger according to claim 5, characterized in that: Multiple positioning posts (6) are fixedly connected between the heat transfer plate (3) and the arc-shaped connecting plate (5). The positioning posts (6) are used to limit the spacing between the inner walls of the heat transfer plate (3).

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