Vertical heat-conducting oil heat exchanger
By introducing moving and vibrating components into the vertical thermal oil heat exchanger, the flow state of the cold medium is changed, turbulence is formed, and the coil is struck, thus solving the problems of decreased heat transfer efficiency and coking caused by changes in flow state in the thermal oil heat exchanger, achieving efficient heat transfer and online scale prevention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGXIA RUIKE XINYUAN CHEM CO LTD
- Filing Date
- 2026-05-08
- Publication Date
- 2026-06-12
AI Technical Summary
In vertical thermal oil heat exchangers, the "bottom in, top out" method of thermal oil leads to a weakening of the turbulence effect in the upper coil and a tendency for coking in the lower coil, which affects heat transfer efficiency and equipment operational stability.
The design employs a combination of coils, moving parts, vibrating parts, and regulating parts. The flow of the cold medium changes the tilt angle of the moving parts, creating turbulence, and the vibrating parts use the vibrating parts to strike and vibrate the coils, thus suppressing coking.
It enhances heat transfer efficiency during operation, prevents coking, achieves online scale prevention, and improves overall heat exchange performance.
Smart Images
Figure CN122191798A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of heat exchange equipment technology, and in particular to a vertical heat exchange oil heat exchanger. Background Technology
[0002] A thermal oil heat exchanger is a heat exchange device that uses high-temperature thermal oil as the heat transfer medium. Generally, the high-temperature thermal oil flows inside the pipe and transfers heat to the material outside the pipe (such as air, another liquid, or process medium) through the pipe wall. The two media do not come into direct contact during the entire process.
[0003] Vertical coil heat exchangers are widely used in petrochemical, heat transfer fluid heating and other fields due to their high heat transfer efficiency, compact structure and ease of high-temperature operation. In vertical structural design, to avoid air resistance accumulation, ensure thermal expansion compensation and maintain stable heat transfer performance, a "bottom-in, top-out" circulation method for the heat transfer medium (heat transfer oil) is generally adopted.
[0004] However, this conventional design has an inherent flaw: as the heat transfer oil flows upwards under gravity, the flow velocity in the upper coil area naturally decreases, and the flow state changes from turbulent to laminar, significantly weakening the turbulent effect. This change in flow state directly leads to two problems: first, the heat transfer coefficient decreases, affecting the overall heat exchange efficiency; second, the reduced flow velocity makes it easier for suspended solids and pyrolysis products in the medium to deposit on the tube wall, causing coking. Coking in the upper coil increases thermal resistance, further worsening heat transfer and creating a vicious cycle.
[0005] Meanwhile, the lower coil, as the inlet area for the high-temperature heat medium, remains in a high-temperature boundary layer despite its high flow velocity, thus also facing the risk of coking. Existing technologies often address coking by periodic chemical cleaning or adding internal turbulence-inducing elements. The former requires shutdown, impacting actual processing efficiency, while the latter increases flow resistance and has limited improvement on turbulence attenuation in the upper coil. Summary of the Invention
[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.
[0007] In view of the problems existing in the above and / or existing vertical heat exchange oil heat exchangers, the present invention is proposed.
[0008] Therefore, the problem to be solved by the present invention is how to solve the problem that the existing vertical heat transfer oil heat exchanger adopts the "bottom in, top out" method of heat transfer oil, which weakens the turbulence effect of the upper coil due to heavy pressure, and causes coking of the lower coil due to the high temperature boundary effect.
[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a vertical heat exchanger for thermal oil, comprising a heat exchange assembly including a bottom shell, a middle shell fixed to the top of the bottom shell, a top shell fixed to the top of the middle shell, the bottom shell, the middle shell, and the top shell combined to form a sealed heat exchange space, a transmission pipe disposed on the bottom shell and the top shell, a hot oil transmission component disposed within the sealed heat exchange space, including two coils and a movable component disposed between the two coils, a flow guide baffle fixed within the bottom shell and the top shell, a flow divider fixed within the middle shell, a vibrating component disposed outside the middle shell for striking and vibrating the coils during cold medium transmission, and an adjusting component disposed within the middle shell for adjusting the tilt angle of the movable component during cold medium transmission. The thermal oil is transmitted through the coils and the movable component, while the cold medium is transmitted within the sealed heat exchange space. The adjusting component adjusts the tilt angle of the movable component synchronously to create turbulence during thermal oil transmission, and the vibrating component performs striking vibration in conjunction with the thermal oil transmission.
[0010] As a preferred embodiment of the vertical heat exchanger for heat transfer oil described in this invention, the movable component includes a central tube located inside the middle shell, connecting hoses disposed at both ends of the central tube, one end of the connecting hose being connected to the coil, the other end of the connecting hose being connected to the central tube, and branch pipes fixed to both sides of the central tube and connected to the central tube.
[0011] As a preferred embodiment of the vertical heat exchanger for heat transfer oil described in this invention, the adjusting component includes two elastic inclined plates fixed to the inner wall of the middle shell. The elastic inclined plates are provided with through holes for the central pipe and branch pipe to pass through, and the elastic inclined plates are provided with displacement grooves to meet the sliding space requirements of the support.
[0012] As a preferred embodiment of the vertical heat exchanger for heat transfer oil described in this invention, the adjusting component further includes a bracket disposed between two elastic inclined plates, a positioning shaft fixed at the center of the bracket and serving as the rotation center of the bracket, and a torsion spring sleeved on the positioning shaft to provide torque for the bracket to reset.
[0013] As a preferred embodiment of the vertical heat exchanger for thermal oil described in this invention, the vibrating element includes a fixed cylinder fixed to the middle shell, an abutment rod slidably connected to one end of the fixed cylinder and sealed to the fixed cylinder, the end of the abutment rod away from the fixed cylinder being in contact with an elastic inclined plate, and a spring sleeved on the abutment rod, one end of the spring being fixed to the abutment rod and the other end of the spring being fixed to the inner wall of the fixed cylinder.
[0014] As a preferred embodiment of the vertical heat exchanger for heat transfer oil described in this invention, the vibrating component further includes a transmission component disposed on one side of the abutment rod. The transmission component includes a horizontal plate fixed to the other end of the abutment rod. Toothed plates are fixed at the top and bottom of the horizontal plate. A through groove is provided at the center of the horizontal plate to form a space for the rotating shaft to move. Two first gears are located at the top and bottom of the horizontal plate, respectively, and the first gears mesh with adjacent toothed plates. Two second gears mesh with adjacent first gears, respectively.
[0015] In a preferred embodiment of the vertical heat exchanger for thermal oil described in this invention, the vibrating element further includes a rotating element. The rotating element includes a rotating shaft disposed between two second gears. The inner ring of each second gear is provided with a one-way bearing, which is rotatably connected to the rotating shaft. Two turntables are fixed to the outer ring of the rotating shaft and symmetrically arranged on both sides of the horizontal plate. The turntables are provided with transmission grooves.
[0016] As a preferred embodiment of the vertical heat exchanger for heat transfer oil described in this invention, the vibrating element further includes a striking element, comprising a vertical rod located on one side of the turntable, a positioning head fixed on one side of the vertical rod, and the positioning head being slidably connected within the transmission groove.
[0017] As a preferred embodiment of the vertical heat exchanger for heat transfer oil described in this invention, the striking element further includes a sliding sleeve slidably mounted on the vertical rod, a locking bolt threadedly connected to the sliding sleeve for anti-slip locking of the vertical rod, and a counterweight head fixed to the bottom of the sliding sleeve.
[0018] As a preferred embodiment of the vertical heat exchanger for heat transfer oil described in this invention, the bottom shell is fixed with an outer shell, the transmission pipe is fixed on the outer shell and communicates with the inner cavity of the bottom shell, and a support column is fixed on the inner wall of the outer shell and contacts the coil.
[0019] The beneficial effects of this invention are as follows: By configuring the coil, moving parts, vibrating parts, and adjusting parts, the flowing cold medium, in conjunction with the adjusting parts, can change the tilt angle of the moving parts during equipment operation, forming a large tilt angle that alters the flow velocity distribution and impact angle at the liquid inlet of the upper coil, thus disrupting the laminar flow facilitator layer. Simultaneously, the flowing cold medium, in conjunction with the vibrating parts, performs impact vibration on the lower coil to suppress coking and adhesion. Therefore, without relying on external power, it simultaneously achieves enhanced heat transfer and online scale prevention during operation, effectively solving the efficiency reduction problem caused by coking in vertical coil heat exchangers. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a scene diagram of a vertical heat exchanger using thermal oil.
[0022] Figure 2 This is a structural diagram of a vertical heat exchanger for thermal oil.
[0023] Figure 3 This is a partial structural diagram of a vertical heat exchanger using thermal oil.
[0024] Figure 4 Another perspective view of the flow guide baffle of a vertical heat exchanger for thermal oil.
[0025] Figure 5 This is a cross-sectional view of the outer shell of a vertical heat exchanger for thermal oil.
[0026] Figure 6 This is an installation diagram of the vibrating and adjusting components of a vertical heat exchanger for thermal oil.
[0027] Figure 7 This is a schematic diagram of the regulating components of a vertical heat exchanger for thermal oil.
[0028] Figure 8 This is a schematic diagram of the vibrating component of a vertical heat exchanger for thermal oil.
[0029] Figure 9 A schematic diagram showing the separation of the vibrating components in a vertical heat exchanger for thermal oil.
[0030] In the diagram: 1. Heat exchange assembly; 11. Bottom shell; 111. Outer shell; 112. Support column; 12. Middle shell; 13. Top shell; 14. Transfer pipe; 15. Hot oil transfer component; 151. Coil; 152. Moving component; 1521. Central pipe; 1522. Connecting hose; 1523. Branch pipe; 16. Drainage baffle; 17. Diversion baffle; 2. Vibrating component; 21. Fixed cylinder; 211. Spring; 22. Abutment rod; 23. Transmission component; 231. Horizontal plate; 2311. Toothed plate; 2312. Through groove; 232 1. First gear; 2321. Mounting plate; 233. Second gear; 2331. One-way bearing; 24. Rotating component; 241. Rotating shaft; 242. Turntable; 2421. Transmission groove; 25. Striking component; 251. Vertical rod; 2511. Positioning head; 2512. Anti-slip groove; 252. Sliding sleeve; 253. Locking bolt; 254. Counterweight head; 3. Adjusting component; 31. Elastic inclined plate; 311. Through hole; 312. Displacement groove; 32. Bracket; 33. Positioning shaft; 34. Torsion spring; 341. Heat insulation shell. Detailed Implementation
[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.
[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.
[0034] Example 1, referring to Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides a vertical heat exchanger for thermal oil, which includes a heat exchange component 1, a vibrating component 2, and an adjusting component 3.
[0035] Specifically, the heat exchange assembly 1 includes a bottom shell 11, a middle shell 12 fixed to the top of the bottom shell 11, and a top shell 13 fixed to the top of the middle shell 12. The bottom shell 11, the middle shell 12 and the top shell 13 are combined to form a sealed heat exchange space.
[0036] Specifically, the transmission pipe 14 is installed on the bottom shell 11 and the top shell 13, the hot oil transmission component 15 is installed in the sealed heat exchange space, including two coils 151 and a movable component 152 installed between the two coils 151, the flow guiding baffle 16 is fixed in the bottom shell 11 and the top shell 13, and the flow diversion baffle 17 is fixed in the middle shell 12.
[0037] Specifically, the vibrating element 2 is located on the outside of the middle shell 12 and is used to vibrate the coil 151 by striking during the transmission of cold medium.
[0038] Specifically, the adjusting component 3 is located inside the middle shell 12 and is used to adjust the tilt angle of the movable component 152 during cold medium transmission.
[0039] The heat transfer oil is transferred by the coil 151 and the moving part 152. The cold medium is transferred in the sealed heat exchange space. The tilt angle of the moving part 152 is adjusted synchronously with the adjusting part 3 to form turbulence when the heat transfer oil is transferred. The vibrating part 2 is used to perform knocking vibration.
[0040] Example 2, refer to Figures 2-9 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0041] Specifically, the movable component 152 includes a central tube 1521 located inside the middle shell 12, a connecting hose 1522 disposed at both ends of the central tube 1521, one end of the connecting hose 1522 being connected to the coil 151, the other end of the connecting hose 1522 being connected to the central tube 1521, and a branch tube 1523 fixed on both sides of the central tube 1521 and connected to the central tube 1521.
[0042] Specifically, the adjusting component 3 includes two elastic inclined plates 31 fixed to the inner wall of the middle shell 12. The elastic inclined plates 31 are provided with through holes 311 for the central tube 1521 and the branch tube 1523 to pass through. In actual application, an elastic sealing ring is fixed in the inner cavity of the through hole 311, and the inner ring of the elastic sealing ring is in sliding contact with the central tube 1521 and the branch tube 1523.
[0043] The connecting hose 1522 is actually a heat-resistant metal corrugated pipe, which has the characteristics of high temperature resistance and flexibility. The working principle of this part is all existing technology, which can be clearly understood by those skilled in the art, and will not be described in detail here.
[0044] The elastic inclined plate 31 is provided with a displacement groove 312 to meet the sliding space requirements of the support 32.
[0045] In practical applications, the elastic inclined plate 31 is made of nickel-based high-temperature alloy, which can maintain a high yield strength at a high temperature of 650℃. At the same time, the oxide layer growth rate is extremely slow, making it suitable for long-term high-temperature use and meeting the requirements of the elastic inclined plate 31 in the operating environment of this equipment.
[0046] Specifically, the adjusting component 3 also includes a bracket 32, which is disposed between two elastic inclined plates 31, and a positioning shaft 33, which is fixed at the center of the bracket 32 and serves as the rotation center of the bracket 32.
[0047] A torsion spring 34 is sleeved on the positioning shaft 33 to provide torque for the bracket 32 to reset. A heat insulation shell 341 is provided on the outside of the torsion spring 34. The heat insulation shell 341 is fixedly connected to the middle shell 12 and to the diversion baffle 17. One end of the torsion spring 34 is fixed to the inner wall of the heat insulation shell 341, and the other end of the torsion spring 34 is fixed to the positioning shaft 33. The positioning shaft 33 and the heat insulation shell 341 are movably connected through a sealed bearing.
[0048] The torsion spring 34 is sealed and protected by the heat insulation shell 341, which not only prevents the flowing medium from corroding the torsion spring 34, but also has the function of heat insulation, ensuring the service life of the torsion spring 34.
[0049] Specifically, the vibrating element 2 includes a fixed cylinder 21 fixed to the middle shell 12. The fixed cylinder 21 is through the middle shell 12 and is inclined.
[0050] The abutment rod 22 is slidably connected to one end of the fixed cylinder 21 and is sealed with the fixed cylinder 21. The end of the abutment rod 22 away from the fixed cylinder 21 is in contact with the elastic inclined plate 31.
[0051] Spring 211 is sleeved on abutting rod 22. One end of spring 211 is fixed to abutting rod 22, and the other end of spring 211 is fixed to the inner wall of fixed cylinder 21.
[0052] When the elastic inclined plate 31 is impacted by the cold medium (due to transmission pressure fluctuations), the elastic inclined plate 31 will squeeze the abutment rod 22 and cause it to move. Under the elastic support of the spring 211, when the inclination angle of the elastic inclined plate 31 increases or decreases, the abutment rod 22 will extend or retract synchronously.
[0053] Specifically, the vibrating component 2 also includes a transmission component 23 disposed on one side of the abutment rod 22. The transmission component 23 includes a horizontal plate 231 fixed to the other end of the abutment rod 22. Toothed plates 2311 are fixed at the top and bottom of the horizontal plate 231. A through groove 2312 is provided at the center of the horizontal plate 231 to form a space for the rotating shaft 241 to move.
[0054] Two first gears 232 are located at the top and bottom of the horizontal plate 231, respectively, and the first gears 232 mesh with the adjacent toothed plates 2311. An mounting plate 2321 is fixed on the outside of the middle shell 12. An auxiliary rod is fixed at the center of the first gear 232, and one end of the auxiliary rod is movably connected to the mounting plate 2321.
[0055] Two second gears 233 mesh with the adjacent first gears 232 respectively.
[0056] Specifically, the vibrating element 2 also includes a rotating element 24, which includes a rotating shaft 241 and is disposed between two second gears 233.
[0057] Two turntables 242 are fixed to the outer ring of the rotating shaft 241 and are symmetrically arranged on both sides of the horizontal plate 231. The turntables 242 are provided with transmission grooves 2421. The inner ring of the second gear 233 is provided with a one-way bearing 2331 and is rotatably connected to the rotating shaft 241 through the one-way bearing 2331.
[0058] Both one-way bearings 2331 are allowed to rotate in the positive direction.
[0059] As shown in the attached diagram of the instruction manual. Figure 9 As shown, when the horizontal plate 231 extends, the toothed plate 2311 and the first gear 232 mesh and drive the rotation, causing the two first gears 232 to rotate in the same direction. When the corresponding second gear 233 meshes with the first gear 232, one of the second gears 233 rotates in the forward direction, while the other second gear 233 rotates in the reverse direction. Correspondingly, with the cooperation of one of the one-way bearings 2331, the rotating shaft 241 can be driven to rotate in the forward direction, while the other one-way bearing 2331 rotates idly. Similarly, when the horizontal plate 231 retracts, one of the one-way bearings 2331 will still drive the rotating shaft 241 to rotate in the forward direction, while the other one-way bearing 2331 rotates idly.
[0060] Therefore, regardless of whether the horizontal plate 231 extends or retracts, the rotating shaft 241 will drive the turntable 242 to rotate in one direction.
[0061] Specifically, the vibrating component 2 also includes a striking component 25, which includes a vertical rod 251 located on one side of the turntable 242. A positioning head 2511 is fixed on one side of the vertical rod 251. The positioning head 2511 is slidably connected in the transmission groove 2421. It should be noted that the positioning head 2511 is composed of two circles with different diameters and has a T-shaped cross section, which cooperates with the transmission groove 2421. This design can prevent the positioning head 2511 from detaching from the turntable 242 when it slides. An anti-slip groove 2512 is provided on one side of the vertical rod 251. A rubber strip is fixed on the inner wall of the anti-slip groove 2512 to increase the contact friction with the locking bolt 253 when the locking bolt 253 is screwed in, thereby preventing the locking bolt 253 from detaching from the sliding sleeve 252 due to vibration. In practical applications, spring washers can also be used to improve the anti-loosening and anti-vibration performance of the locking bolt 253.
[0062] Specifically, the striking component 25 also includes a sliding sleeve 252, which is slidably sleeved on the vertical rod 251, and a locking bolt 253, which is threadedly connected to the sliding sleeve 252 and used to lock the vertical rod 251 against slip. One end of the locking bolt 253 extends into the anti-slip groove 2512.
[0063] The counterweight head 254 is fixed to the bottom of the sliding sleeve 252, and one end of the counterweight head 254 is protruding. A rubber pad is fixed on the protruding end to prevent hard contact and friction damage between the counterweight head 254 and the outer shell 111 when they collide.
[0064] Specifically, an outer shell 111 is fixed to the outer ring of the bottom shell 11, the transmission pipe 14 is fixed to the outer shell 111 and communicates with the inner cavity of the bottom shell 11, and a support column 112 is fixed to the inner wall of the outer shell 111 and contacts the coil 151.
[0065] Example 3, referring to Figures 2-9 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0066] As shown in the attached diagram of the instruction manual. Figure 2 , Figure 3 and Figure 4 As shown, the flow-guiding baffle 16 separates the bottom shell 11 and the top shell 13 into two non-interfering spaces, and the top of the flow-guiding baffle 16 forms a transmission groove that is misaligned with the transmission pipe 14. This design not only allows the two transmission pipes 14 to connect two different media that both require heating, achieving "one unit for two purposes", but also allows the cold medium injected through the transmission pipe 14 to impact the elastic inclined plate 31, thereby causing the elastic inclined plate 31 to deform elastically.
[0067] The flow divider 17 separates the space within the middle shell 12 into two non-interfering spaces to meet the heat exchange requirements of two different cold media. In practical applications, both the flow guide baffle 16 and the flow divider 17 are made of ultra-pure ferritic stainless steel, which not only has high heat exchange efficiency and ensures uniform temperature distribution between the two cold media, but also improves corrosion resistance and has a long overall service life.
[0068] As shown in the attached diagram of the instruction manual. Figure 7 As shown, in practical applications, a protruding post is fixed on the inner side of the bracket 32, and a groove is provided on the inner wall of the displacement groove 312 to slide and connect with the protruding post. The protruding post and the groove cooperate to guide the movement of the bracket 32, and when the tilt angle of the bracket 32 changes, the tilt angles of the two elastic inclined plates 31 will also change.
[0069] Both ends of the rotating shaft 241 are movably connected to support plates, and one end of the support plate is bolted to the outside of the middle shell 12.
[0070] In practical applications, in order to ensure the rotational stability of the rotating shaft 241 and prevent the rotating shaft 241 from rotating in the opposite direction, a one-way bearing 2331 is also installed between the rotating shaft 241 and the support plate.
[0071] As shown in the attached diagram of the instruction manual. Figure 9As shown, the transmission groove 2421 includes a central annular groove and four straight grooves arranged in a circular array around the outer ring of the annular groove. The positioning head 2511, due to gravity, is positioned in the lowest straight groove. As the turntable 242 rotates forward, the straight groove causes the positioning head 2511 to move obliquely upward. Under the counterweight of the counterweight head 254, the vertical rod 251, the sliding sleeve 252, and the counterweight head 254 will maintain a vertical position as much as possible. When the angle between the corresponding straight groove and the vertical line changes from an acute angle to a right angle, the positioning... As the height of the head 2511 and the counterweight head 254 increases, and when the corresponding straight groove changes from a right angle to an obtuse angle, the positioning head 2511 will tilt and slide down the corresponding straight groove under the action of gravity. Finally, under the action of gravity, it will fall into the next straight groove. At this time, due to the change in height and lateral position, the counterweight head 254 will form a pendulum motion, and the counterweight head 254 will strike the outer shell 111. Under the transmission of the support column 112, the coil 151 below will vibrate, thereby effectively reducing the coking rate.
[0072] In this cycle, as the turntable 242 rotates continuously in the forward direction throughout the heat exchange process, the counterweight head 254 will repeatedly strike, causing the coil 151 to vibrate multiple times, which greatly reduces the coking rate inside the lower coil 151.
[0073] An elastic sealing ring is embedded at the connection between the coil 151 and the drainage baffle 16, which not only meets the vibration requirements of the coil 151, but also prevents the two cold media separated by the drainage baffle 16 from mixing.
[0074] It should be noted that the number of vibration element 2 and adjustment element 3 in this application is only one implementation method. In actual application, the number of vibration element 2 and adjustment element 3 can be flexibly increased or decreased according to the size of the overall heat exchange path.
[0075] It should be noted that when the required vertical height of the equipment is large, it can be... Figure 1 After the top shell 13 and its internal structure are removed, they are stacked one on top of the other. Correspondingly, the top coil 151 in the lower heat exchange component 1 will become the bottom coil 151 in the upper heat exchange component 1. The overall arrangement from bottom to top is "bottom shell 11-middle shell 12-bottom shell 11-middle shell 12".
[0076] It should be noted that in practical applications, the outer side of the transmission component 23 is equipped with a corrugated dust cover, which is used to prevent external dust from falling in when the corrugated dust cover is unfolded and covered, and to facilitate maintenance personnel to add lubricating oil regularly when the corrugated dust cover is folded up.
[0077] It should be noted that in industrial heat exchange processes, even under design conditions, the pressure of the fluid within the flow channel always fluctuates due to minute changes in the temperature, density, viscosity of the cold medium, and system back pressure. This fluctuation is an inevitable result of the combined effects of centrifugal pump characteristics, pipeline resistance characteristics, and changes in the physical properties of the medium, rather than an occasional malfunction. Furthermore, the "pressure fluctuation" in this application does not refer to the massive impact of start-up, shutdown, or load changes, but rather to the inherent turbulent pulsating pressure of the fluid during transport. This pressure, even when the macroscopic flow rate is stable, is caused by fluid inertia and viscosity, a well-known phenomenon in the field of fluid machinery.
[0078] During use, the high-temperature heat transfer oil enters from the lower coil 151 with the assistance of an external pump, flows through the central pipe 1521 and the branch pipe 1523, and is finally discharged from the upper movable part 152. Correspondingly, the cold medium to be heat exchanged enters the bottom shell 11 through the lower transmission pipe 14 under the action of the external pump. With the cooperation of the flow guiding baffle 16 and the flow dividing baffle 17, it flows through the bottom shell 11, the middle shell 12 and the top shell 13 in sequence, and is finally discharged from the upper transmission pipe 14. During this process, the cold medium is in full contact with the heat-conducting coil 151, the central pipe 1521 and the branch pipe 1523 to achieve good heat exchange.
[0079] During the above process, if the flow rate of the cold medium entering the transmission pipe 14 is large, it will impact the elastic inclined plate 31 below, causing the elastic inclined plate 31 to undergo elastic deformation. Under the positioning action of the positioning shaft 33, the tilt angle of the bracket 32 changes, and the torsion spring 34 tightens, so that the tilt angle of the upper elastic inclined plate 31 also changes, which can increase the transmission path of the cold medium in the middle shell 12 and help improve the heat exchange efficiency of the cold medium.
[0080] When the elastic inclined plate 31 undergoes elastic deformation, the inclination angle of the central pipe 1521 and the branch pipe 1523 can also change, forming a large-angle transmission line that enters the upper coil 151. Compared with the traditional fixed conduit, the direction of heat transfer oil impact in the large-angle pipeline is more perpendicular to the pipe wall, the disturbance is enhanced, and the coking rate of the upper coil 151 is effectively reduced.
[0081] During the cold medium transmission process, due to fluctuations in transmission pressure and the arrangement of transmission pipelines, the inclination angle of the elastic inclined plate 31 changes continuously, causing the abutment rod 22 to extend or retract. The spring 211 is compressed or stretched, which drives the horizontal plate 231 to move. With the cooperation of the toothed plate 2311, the first gear 232, the second gear 233, and the one-way bearing 2331, the rotating shaft 241 can always rotate in one direction. Then, with the cooperation of the transmission groove 2421 and the positioning head 2511, the counterweight head 254 forms a pendulum motion, striking the outer casing 111, which causes the coil 151 below to be in a state of micro-vibration, greatly reducing the coking rate.
[0082] During the above process, due to the setting of the one-way bearing 2331, even if the single displacement of the horizontal plate 231 is insufficient for the counterweight head 254 to complete a single striking action, the counterweight head 254 can still gradually move upward, which has the characteristic of "displacement accumulation".
[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A vertical heat exchanger for thermal oil, characterized in that: include, The heat exchange assembly (1) includes a bottom shell (11), a middle shell (12) fixed to the top of the bottom shell (11), and a top shell (13) fixed to the top of the middle shell (12). The bottom shell (11), the middle shell (12), and the top shell (13) are combined to form a sealed heat exchange space. The transmission pipe (14) is disposed on the bottom shell (11) and the top shell (13). The hot oil transfer component (15) is disposed in a sealed heat exchange space and includes two coils (151) and a movable component (152) disposed between the two coils (151). The drainage baffle (16) is fixed inside the bottom shell (11) and the top shell (13). The flow divider (17) is fixed inside the middle shell (12). Vibrating element (2), located on the outside of the middle shell (12), is used to vibrate the coil (151) by striking during cold medium transmission. Adjusting element (3), located inside the middle shell (12), is used to adjust the tilt angle of movable element (152) during cold medium transmission. The heat transfer oil is transported by the coil (151) and the moving part (152). The cold medium is transported in the sealed heat exchange space. The tilt angle of the moving part (152) is adjusted synchronously with the adjusting part (3) to form turbulence when the heat transfer oil is transported. The vibrating part (2) is used to perform knocking vibration.
2. The vertical heat exchanger for thermal oil as described in claim 1, characterized in that: The movable component (152) includes a central tube (1521) located within the middle shell (12). A connecting hose (1522) is provided at both ends of the central tube (1521). One end of the connecting hose (1522) is connected to the coil (151), and the other end of the connecting hose (1522) is connected to the central tube (1521). Branch pipe (1523) is fixed on both sides of central pipe (1521) and connected to central pipe (1521).
3. The vertical heat exchanger for thermal oil as described in claim 2, characterized in that: The adjusting component (3) includes two elastic inclined plates (31) fixed to the inner wall of the middle shell (12). The elastic inclined plate (31) has a through hole (311) for the central tube (1521) and the branch tube (1523) to pass through. The elastic inclined plate (31) is provided with a displacement groove (312) to meet the sliding space requirements of the support (32).
4. The vertical heat exchanger for thermal oil as described in claim 3, characterized in that: The adjusting component (3) also includes a bracket (32) disposed between two elastic inclined plates (31). The positioning shaft (33) is fixed at the center of the bracket (32) and serves as the center of rotation of the bracket (32). A torsion spring (34) is sleeved on the positioning shaft (33) to provide torque for the bracket (32) to reset.
5. The vertical heat exchanger for thermal oil as described in any one of claims 1, 2, 3, or 4, characterized in that: The vibrating element (2) includes a fixed cylinder (21) fixed to the middle shell (12). The abutment rod (22) is slidably connected to one end of the fixed cylinder (21) and is sealed to the fixed cylinder (21). The end of the abutment rod (22) away from the fixed cylinder (21) is in contact with the elastic inclined plate (31). A spring (211) is sleeved on the abutment rod (22). One end of the spring (211) is fixed to the abutment rod (22), and the other end of the spring (211) is fixed to the inner wall of the fixing cylinder (21).
6. The vertical heat exchanger for thermal oil as described in claim 5, characterized in that: The vibrating component (2) also includes a transmission component (23) disposed on one side of the abutment rod (22). The transmission component (23) includes a horizontal plate (231) fixed to the other end of the abutment rod (22). The top and bottom of the horizontal plate (231) are both fixed with toothed plates (2311). A through groove (2312) is provided at the center of the horizontal plate (231) to form a space for the rotating shaft (241) to move. Two first gears (232) are located at the top and bottom of the cross plate (231), respectively, and the first gears (232) mesh with the adjacent toothed plates (2311). Two second gears (233) mesh with the adjacent first gears (232), respectively.
7. The vertical heat exchanger for thermal oil as described in claim 6, characterized in that: The vibrating component (2) further includes a rotating component (24), which includes a rotating shaft (241) disposed between two second gears (233). The inner ring of the second gear (233) is provided with a one-way bearing (2331), and is rotatably connected to the rotating shaft (241) through the one-way bearing (2331). Two turntables (242) are fixed to the outer ring of the rotating shaft (241) and symmetrically arranged on both sides of the horizontal plate (231). The turntables (242) are provided with transmission grooves (2421).
8. The vertical heat exchanger for thermal oil as described in claim 7, characterized in that: The vibrating element (2) also includes a striking element (25), including a vertical rod (251) located on one side of the turntable (242), a positioning head (2511) fixed on one side of the vertical rod (251), and the positioning head (2511) is slidably connected in the transmission groove (2421).
9. The vertical heat exchanger for thermal oil as described in claim 8, characterized in that: The striking element (25) also includes a sliding sleeve (252), which is slidably mounted on the vertical rod (251). The locking bolt (253), threaded onto the sliding sleeve (252), is used to prevent slippage and lock the vertical rod (251). The counterweight head (254) is fixed to the bottom of the sliding sleeve (252).
10. The vertical heat exchanger for thermal oil as described in any one of claims 1, 2, 3 or 4, characterized in that: The outer shell (111) is fixed to the outer ring of the bottom shell (11), and the transmission pipe (14) is fixed to the outer shell (111) and communicates with the inner cavity of the bottom shell (11). The inner wall of the outer casing (111) is fixed with a support column (112) and in contact with the coil (151).