Novel heating chamber anti-abrasion cap
By using an anti-wear cap structure in the heating chamber, the wear and corrosion problems at the welded joints between the tube sheet and the tube head are solved, enabling long-term stable operation and extended service life of the equipment.
Patent Information
- Application Number
- CN202423125845.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The welded joints between the tube sheet and tube head in the existing heating chamber are prone to wear and corrosion in high-temperature and high-flow-rate environments, resulting in short equipment lifespan, frequent maintenance, and increased production costs.
The structure adopts an anti-wear cap, including a cap brim, a cap body, and a flow guide slope. The cap brim fits tightly onto the surface of the heat exchange tube head, the cap body fits snugly against the tube sheet, and the flow guide slope is designed to be progressive to disperse the impact force of materials and airflow, avoid turbulence, and protect the welded parts.
It effectively prevents wear and corrosion at welded parts, extends equipment life, reduces maintenance and downtime, and lowers production costs.
Smart Images
Figure CN223663821U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of heating chamber in saline alkali industry, especially to a new heating chamber anti-abrasion cap. BACKGROUND
[0002] As an indispensable device in the saline alkali production process, the heating chamber of I, II and III effects undertakes the key heat exchange task in the whole production process, and plays a crucial role in maintaining the stable operation of the production process and the control of product quality. The operating temperature of the equipment is high, and the flow of the medium in the equipment is large, which means that the flow rate of the material and the gas flow in the equipment is fast, which will generate a large impact force on each part of the equipment. Especially at the welding position of the tube sheet and the tube head, the high-speed flowing material and gas flow are constantly eroded, which significantly increases the mechanical stress of this position and accelerates the wear and damage of the parts. The treated medium has strong corrosive property, and the presence of CL ions has a particularly prominent corrosive effect on the equipment. CL ions can destroy the passivation film on the surface of the metal, trigger an electrochemical corrosion reaction, and make the welding position of the tube head and the tube sheet more susceptible to corrosion damage. In this corrosive environment, even if materials with certain corrosion resistance such as TA10 and TA10 / Q345R composite plates are used, corrosion problems still occur after a long time of operation.
[0003] Although the tube sheet and the tube head welding position in the existing heating chamber is coated with ceramic paint on the surface of the tube head to prevent corrosion, the high-temperature resistance and anti-erosion effect of the paint is not good, which can easily cause wear and tear at the welding position of the tube sheet and the tube head, and cannot effectively protect the welding position for a long time, resulting in that the service life of the equipment cannot reach the ideal state, and frequent equipment maintenance and replacement increase the production cost. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at solving the shortcomings in the prior art, and provides a new heating chamber anti-abrasion cap.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a new heating chamber anti-abrasion cap, which comprises a cylinder, a tube sheet is arranged in the interior of the cylinder, a tube hole is formed in the surface of the tube sheet, a heat exchange pipe is arranged on the surface of the tube hole, and an anti-abrasion cap is arranged on the surface of the heat exchange pipe. The anti-abrasion cap comprises a brim, a cap body and a flow guide slope, the bottom of the brim is provided with the cap body, and the surface circumference of the cap body is provided with the flow guide slope.
[0006] Preferably, the flow guide slope comprises a first guide slope, a second guide slope and a third guide slope, and the bending slopes of the first guide slope, the second guide slope and the third guide slope decrease in turn.
[0007] Preferably, the inside of the barrel is provided with a tube bundle, and the tube plate is provided with a plurality of tube holes.
[0008] Preferably, the top surface of the barrel is provided with an upper tube box, and the bottom surface of the barrel is provided with a lower tube box.
[0009] Preferably, the surfaces of the upper tube box and the lower tube box are provided with flanges, and the upper tube box and the lower tube box are fixedly connected with the barrel through the flanges.
[0010] Preferably, the two ends of the heat exchange pipe are welded with the tube plate through the tube holes, and the heat exchange pipe is provided with a plurality of heat exchange pipes.
[0011] Preferably, the shape of the hat body corresponds to the tube hole, and the shape and position of the hat brim and the hat body are matched with the tube plate and the heat exchange pipe.
[0012] Beneficial effects
[0013] In the utility model, the anti-abrasion hat is composed of a hat brim, a hat body and a flow guide slope, the hat body at the bottom of the hat brim is tightly sleeved on the surface of the head of the heat exchange pipe, the hat brim is closely attached to the tube plate, directly protects the welding position of the tube plate and the head, blocks the impact of the material and the airflow, and the flow guide slope on the circumference of the hat body is more critical, the bending slopes of the first guide slope, the second guide slope and the third guide slope are sequentially reduced, when the material and the airflow impact the anti-abrasion hat, due to the existence of the first guide slope, the second guide slope and the third guide slope, they cannot directly impact the contact position of the hat brim and the hat body, and this critical area is effectively protected, thereby avoiding local abrasion and damage caused by direct impact, meanwhile, the flow guide slope with multiple slopes can realize multi-angle and multi-directional flow guide of the airflow and the material, ensures that the airflow and the material stably move on the surface of the anti-abrasion hat, the progressive flow guide design effectively avoids the generation of turbulent flow, prevents the excessive impact phenomenon caused by the disordered impact of the airflow and the material, prevents the anti-abrasion hat from being seriously abraded, and further provides a reliable protective barrier for the welding position of the tube plate and the head, the welding position no longer frequently suffers from strong scouring and corrosion, the overall stability of the equipment is improved, the service life is significantly prolonged, the maintenance and downtime caused by equipment damage are reduced, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the overall structure diagram of the utility model;
[0015] Figure 2 It is the sectional view of the tube plate and the heat exchange pipe of the utility model;
[0016] Figure 3 It is the structure diagram of the anti-abrasion hat and the tube plate of the utility model;
[0017] Figure 4 It is the structure diagram of the anti-abrasion hat of the utility model;
[0018] Figure 5 Figure 1 is a perspective view of the anti-abrasion cap of the present application.
[0019] Figure legend:
[0020] 1, cylinder; 2, tube plate; 3, heat exchange tube; 4, tube bundle; 5, upper tube box; 6, flange; 7, tube hole; 8, anti-abrasion cap; 801, brim; 802, cap body; 803, flow guide slope; 80301, first guide slope; 80302, second guide slope; 80303, third guide slope; 9, lower tube box. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the specific embodiments and drawings are combined below to further illustrate the present application. However, the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0022] The specific embodiments of the present application are described below in conjunction with the drawings. Embodiment one:
[0024] Reference Figures 1-5 A new type of heating chamber anti-abrasion cap, comprising a cylinder 1, the cylinder 1 is made of Q345R, the tube plate 2 is made of TA10 / Q345R composite, the heat exchange tube 3 is made of TA10 material, the anti-abrasion cap 8 is made of TA10 material, the cylinder 1 serves as the shell of the entire heating chamber, providing structural support and protection for the internal tube plate 2, heat exchange tube 3, tube bundle 4, anti-abrasion cap 8, and upper tube box 5 and lower tube box 9 and other components, ensuring that the internal components can work in a relatively stable space, withstand the pressure of the internal medium and the influence of the external environment, maintain the integrity and sealing of the entire device, the inside of the cylinder 1 is provided with the tube bundle 4, which increases the heat exchange area and improves the heat exchange efficiency, and the overall structure of the tube bundle 4 helps the medium to be uniformly distributed and flowed therein, promotes the full heat exchange, and ensures that the heat exchange performance of the heating chamber meets the production process requirements, the top surface of the cylinder 1 is provided with the upper tube box 5, the bottom surface of the cylinder 1 is provided with the lower tube box 9, the surfaces of the upper tube box 5 and the lower tube box 9 are provided with flanges 6, the upper tube box 5 and the lower tube box 9 are fixedly connected with the cylinder 1 through the flanges 6, the flanges 6 on the surfaces of the upper tube box 5 and the lower tube box 9 are used for fixedly connecting with the cylinder 1, and the tightness and sealing of the connection are ensured through the bolt connection mode, preventing the medium from leaking, ensuring the safety and stability of the heating chamber during operation, and making the entire device form a complete fluid circulation system to realize the heat transfer and exchange function.
[0025] The inner part of the barrel 1 is provided with a tube plate 2, which is distributed along the inner wall of the barrel 1, the surface of the tube plate 2 is provided with a plurality of tube holes 7, the tube plate 2 plays a role in fixing and supporting the heat exchange pipe 3, so that the heat exchange pipe 3 can be arranged in order inside the barrel 1, and the uniformity and stability of the heat exchange process are guaranteed, the tube holes 7 provided on the tube plate 2 provide installation positions for the heat exchange pipe 3, and the tube plate 2 divides the internal space of the barrel 1 into different areas, which helps to control the flow path and distribution of the medium and promotes the effective heat exchange, the surface of the tube hole 7 is provided with the heat exchange pipe 3, both ends of the heat exchange pipe 3 penetrate the tube hole 7 and are welded with the tube plate 2, and the heat exchange pipe 3 is provided with a plurality of heat exchange pipes 3, the heat exchange pipe 3 is a key component for realizing heat exchange, the medium inside and outside the heat exchange pipe 3 transfers heat through the pipe wall, both ends penetrate the tube hole 7 and are welded with the tube plate 2, which ensures the stable installation of the heat exchange pipe 3 in the equipment, and ensures the flow sealing of the medium in the heat exchange pipe 3, prevents leakage, the arrangement of a plurality of heat exchange pipes 3 greatly increases the heat exchange area, improves the heat exchange efficiency of the heating chamber, and meets the demand for heat exchange in the production process of salt and alkali.
[0026] The surface of the heat exchange pipe 3 is provided with an anti-abrasion cap 8, which includes a cap brim 801, a cap body 802 and a flow guide slope 803. During installation, the cap brim 801 is spot-welded to the tube plate 2 by arc welding, thereby fixing the anti-abrasion cap 8 to the tube plate 2 and enhancing the stability of the connection between the anti-abrasion cap 8 and the tube plate 2, preventing displacement or falling of the anti-abrasion cap 8 during operation due to the impact of airflow and material, and providing support and positioning for the cap body 802, thereby ensuring the correct installation position of the entire anti-abrasion cap 8 in the pipe head of the heat exchange pipe 3. The bottom of the cap brim 801 is provided with the cap body 802, which corresponds in shape to the pipe hole 7 and is tightly fitted in the pipe head of the heat exchange pipe 3, covering the vicinity of the welded part of the tube plate 2 and the pipe head, thereby directly blocking the impact of material and airflow on the welded part and protecting the critical part from abrasion and corrosion. The flow guide slope 803 provided on the surface of the cap body 802 further enhances the protection performance. The shape and position of the cap brim 801 and the cap body 802 are adapted to the tube plate 2 and the heat exchange pipe 3. The surface of the cap body 802 is provided with the flow guide slope 803, which includes a first guide slope 80301, a second guide slope 80302 and a third guide slope 80303. The bending slopes of the first guide slope 80301, the second guide slope 80302 and the third guide slope 80303 decrease in turn. When the material and airflow impact the anti-abrasion cap 8, the first guide slope 80301 rapidly changes the flow direction of the airflow and material by virtue of the larger bending slope, thereby dispersing the impact force and guiding it to the second guide slope 80302. The second guide slope 80302 continues to adjust the flow direction of the airflow and material, thereby further dispersing and slowing them down. The third guide slope 80303 ensures the smooth bypass of the airflow and material around the cap body 802 by means of the smaller bending slope, thereby avoiding the generation of turbulent flow and excessive impact. Through the multi-angle and multi-directional flow guiding and directing effect, the anti-abrasion cap 8 itself is effectively protected, the abrasion is reduced, thereby prolonging the service life of the anti-abrasion cap 8, and the welded part of the tube plate 2 and the pipe head of the heat exchange pipe 3 is better protected, thereby ensuring the long-term stable operation of the equipment.
[0027] When the new heating chamber is used in the salt and alkali production process, the two ends of the heat exchange pipe 3 made of TA10 material pass through the pipe hole 7 on the tube plate 2, and are stably connected with the tube plate 2 by welding, so as to ensure that the heat exchange pipe 3 is orderly arranged in the cylinder body 1 and has good medium flow sealing property. Then, the wear-resistant cap 8 made of TA10 material is installed at the pipe head of the heat exchange pipe 3, so that the cap body 802 is tightly sleeved into the pipe head, the bottom of the cap brim 801 is attached to the tube plate 2, the cap brim 801 is spot welded with the tube plate 2 by arc welding, the position of the wear-resistant cap 8 is stable, and the shape and position of the wear-resistant cap 8 are perfectly matched with the tube plate 2 and the heat exchange pipe 3. The flow guide slope 803 on the surface of the cap body 802 is ready to cope with the impact of the material and airflow. During the operation of the equipment, the medium enters from the lower pipe box 9, exchanges heat with the external medium through the pipe wall when flowing through the heat exchange pipe 3, and in this process, the wear-resistant cap 8 effectively protects the tube plate 2 and the heat exchange pipe 3 from being eroded by the material and airflow. At the same time, through the setting of the flow guide slope 803, the material and airflow are guided in multiple angles and directions, so as to avoid the generation of turbulent flow and prevent the excessive impact phenomenon caused by the disordered impact of the airflow and the material, so as to prevent the wear-resistant cap 8 from being seriously worn, and further provide a reliable protective barrier for the welding part of the tube plate 2 and the pipe head. The welding part no longer frequently suffers from strong erosion and corrosion, the medium after heat exchange flows out from the upper pipe box 5, the whole device continuously and stably operates, meets the heat exchange demand in the salt and alkali production process, and ensures long-term stable operation. Specific embodiment two:
[0029] A new type of heating chamber anti-abrasion cap is based on the basic structure in embodiment one, and further discloses that the flow guide slope 803 includes a first guide slope 80301, a second guide slope 80302 and a third guide slope 80303, and the bending slopes of the three slopes are decreasing in turn. This design has significant advantages in practical application. In specific implementation, the bending slopes of the first guide slope 80301, the second guide slope 80302 and the third guide slope 80303 can be accurately selected according to the actual working conditions of the heating chamber, so as to achieve the best flow guiding effect of the material and airflow. For example, in the case of fast material flow and large impact force, the bending slope of the first guide slope 80301 can be appropriately increased to more effectively change the initial direction of the airflow and the material, rapidly disperse the impact force, and then guide the smooth flow through the second guide slope 80302 and the third guide slope 80303 with decreasing slopes. In addition, this design also provides further expansion possibilities, which are not limited to the combination of three guide slopes 803, but can also select four guide slopes 803 in a group or five guide slopes 803 in a group for gradual change according to needs. This diversity of choices can better cope with more complex material and airflow characteristics under different working conditions. By increasing the number of guide slopes 803 and adjusting the slope combination, a more precise flow guiding function is achieved, further improving the protection effect of the anti-abrasion cap 8 on the tube plate 2 and the tube head welding part, effectively reducing the occurrence of turbulent flow and excessive impact, significantly prolonging the service life of the anti-abrasion cap 8, and further improving the stability and reliability of the entire heating chamber equipment.
[0030] In summary:
[0031] 1. An anti-wear cap 8 is adopted, which consists of a brim 801, a cap body 802, and a guide slope 803. The cap body 802 at the bottom of the brim 801 is tightly fitted onto the surface of the heat exchange tube 3. The brim 801 is in close contact with the tube sheet 2, directly protecting the welded part between the tube sheet 2 and the tube head, blocking the impact of materials and airflow. At the same time, the guide slope 803 around the circumference of the cap body 802 is crucial. The curvature of the first guide slope 80301, the second guide slope 80302, and the third guide slope 80303 decreases sequentially. When materials and airflow rush towards the anti-wear cap 8, due to the presence of the first guide slope 80301, the second guide slope 80302, and the third guide slope 80303, they cannot directly impact the contact area between the brim 801 and the cap body 802. Key areas are effectively protected, avoiding localized wear and damage caused by direct impact. At the same time, the multi-slope guide slope 803 can guide the airflow and materials from multiple angles and directions, ensuring that they move smoothly on the surface of the wear-resistant cap 8. This progressive guide design effectively avoids the generation of turbulence and prevents excessive impact caused by disordered impact of airflow and materials, protecting the wear-resistant cap 8 from severe wear. This provides a reliable protective barrier for the welding parts of the tube sheet 2 and the tube head, so that the welding parts are no longer frequently subjected to strong scouring and corrosion. The overall stability of the equipment is improved, the service life is significantly extended, maintenance and downtime caused by equipment damage are reduced, and production costs are lowered.
[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0033] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A new type of heating chamber wear cap comprising a barrel (1), characterized in that: The inside of the barrel (1) is provided with a tube plate (2), the surface of the tube plate (2) is provided with a tube hole (7), the surface of the tube hole (7) is provided with a heat exchange pipe (3), the surface of the heat exchange pipe (3) is provided with an anti-abrasion cap (8), the anti-abrasion cap (8) comprises a brim (801), a cap body (802) and a guide slope (803), the bottom of the brim (801) is provided with the cap body (802), the surface of the cap body (802) is circumferentially provided with the guide slope (803), the guide slope (803) comprises a first guide slope (80301), a second guide slope (80302) and a third guide slope (80303), the bending slopes of the first guide slope (80301), the second guide slope (80302) and the third guide slope (80303) decrease in turn.
2. A new type of heating chamber wear cap according to claim 1, characterized in that: The inside of the barrel (1) is provided with a tube bundle (4), and the tube plate (2) is distributed along the inner wall of the barrel (1).
3. A new type of heating chamber wear cap according to claim 1, characterized in that: The top surface of the barrel (1) is provided with an upper tube box (5), and the bottom surface of the barrel (1) is provided with a lower tube box (9).
4. A new type of heating chamber wear cap according to claim 3, characterized in that: The surfaces of the upper tube box (5) and the lower tube box (9) are both provided with flanges (6), and the upper tube box (5) and the lower tube box (9) are both fixedly connected with the barrel (1) through the flanges (6).
5. A new type of heating chamber wear cap according to claim 1, characterized in that: Both ends of the heat exchange pipe (3) penetrate the tube hole (7) and are welded with the tube plate (2), and the heat exchange pipe (3) is provided with a plurality of heat exchange pipes.
6. A new type of heating chamber wear cap according to claim 1, characterized in that: The shape of the cap body (802) corresponds to the tube hole (7), and the shapes and positions of the brim (801) and the cap body (802) are adapted to the tube plate (2) and the heat exchange pipe (3).