A PTFE transport tank with heat dissipation pipes

Abstract

This invention belongs to the field of tetrafluoroethylene (PTFE) transportation technology and relates to a PTFE transport tank with a heat dissipation pipe. The invention includes a tank body and a buffer mechanism comprising a perforated plate sliding along the axial direction of the tank body. A first scroll plate and a second scroll plate are respectively arranged on both sides of the perforated plate along its axial direction. The first and second scroll plates are connected to the perforated plate via a one-way transmission assembly, such that the perforated plate drives the first scroll plate to rotate when sliding in a first direction and drives the second scroll plate to rotate when sliding in a second direction. When the PTFE sloshes inside the tank, the perforated plate and springs buffer the impact of the PTFE on the tank ends. Simultaneously, the rotation of the first or second scroll plate provides multi-layered interception of the PTFE, thereby buffering the impact force on the tank sidewalls. Furthermore, the first or second scroll plate has the effect of pushing the PTFE towards the center, further reducing the impact force on the tank sidewalls and ensuring safety during transportation.

Description

Technical Field

[0001] This invention belongs to the field of tetrafluoroethylene transportation technology and relates to a tetrafluoroethylene transport tank with heat dissipation pipe. Background Technology

[0002] Tetrafluoroethylene (TEF) is a key monomer in the manufacture of high-value-added fluoropolymers such as polytetrafluoroethylene (PTFE), holding an irreplaceable position in the chemical and materials industries. However, TEF itself is an extremely hazardous chemical, and its transportation faces severe safety challenges. TEF monomers are chemically reactive and readily undergo self-polymerization under light, heat, or mechanical impact. Furthermore, the shaking and sloshing of TEF caused by vehicle vibrations and starts and stops during transport not only subject the tank structure to repeated mechanical impacts, affecting equipment safety in the long term, but also generate static electricity and localized hot spots due to the intense friction and impact between the liquid and the tank wall. Both of these are potential high-risk factors that could induce TEF self-polymerization or ignition and explosion.

[0003] Currently, for the transportation of tetrafluoroethylene (PTFE), the industry generally uses specialized pressure tank trucks or containers equipped with insulation or cooling systems to ensure safety by controlling temperature. Existing protection methods mainly focus on reinforcing the tank structure, attempting to passively withstand impacts by increasing wall thickness. However, simply reinforcing the tank not only significantly increases its weight and cost but also fails to fundamentally eliminate the hazards of kinetic energy.

[0004] To address the above problems, this invention proposes a tetrafluoroethylene transport tank with a heat dissipation pipe. Summary of the Invention

[0005] To address the problems existing in the background art, the present invention proposes a tetrafluoroethylene transport tank with heat dissipation pipes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tetrafluoroethylene transport tank with a heat dissipation pipe, comprising a tank body, wherein a buffer mechanism is provided inside the tank body, the buffer mechanism comprising a perforated plate that slides along the axial direction of the tank body, and a first scroll plate and a second scroll plate are respectively provided on both sides of the perforated plate along the axial direction; the first scroll plate and the second scroll plate are connected to the perforated plate through a one-way transmission assembly, such that when the perforated plate slides along a first direction, it drives the first scroll plate to rotate, and when it slides along a second direction, it drives the second scroll plate to rotate;

[0007] The first and second vortex plates are configured such that, when driven to rotate, they mitigate the impact of tetrafluoroethylene on the tank sidewall through their own spiral structure, while guiding the tetrafluoroethylene to flow towards the tank axis, further buffering the impact on the tank sidewall.

[0008] Furthermore, the one-way transmission assembly includes a ball screw pair, wherein the ball screw in the ball screw pair is fixed in the tank body, and the ball nut in the ball screw pair is rotatably connected to the perforated plate; the first scroll plate is mounted on the ball nut via a first one-way bearing, and the second scroll plate is mounted on the ball nut via a second one-way bearing; the locking directions of the first one-way bearing and the second one-way bearing are opposite.

[0009] Furthermore, springs are provided on both axial sides of the ball nut; the springs are sleeved on the ball screw, one end of the spring is fixedly connected to a swivel ring, and the other end is fixedly connected to a fixed ring; the swivel ring is rotatably connected to the ball nut, and the fixed ring is fixedly connected to the ball screw.

[0010] Furthermore, the first vortex plate is fixedly connected to the outer ring of the first one-way bearing via a first connecting ring; the second vortex plate is fixedly connected to the outer ring of the second one-way bearing via a second connecting ring.

[0011] Furthermore, the first vortex plate is fixedly connected to a first reinforcing rod, and the first connecting ring is fixedly connected to the first reinforcing rod; the second vortex plate is fixedly connected to a second reinforcing rod, and the second connecting ring is fixedly connected to the second reinforcing rod.

[0012] Furthermore, a heat dissipation pipe is embedded in the side wall of the tank.

[0013] Furthermore, the heat dissipation pipe has a spiral coiled structure.

[0014] Furthermore, a slider is fixedly connected to the outer side of the perforated plate, and the slider is slidably disposed in a groove formed on the inner wall of the tank.

[0015] Compared with the prior art, the present invention has the following beneficial effects: when the tetrafluoroethylene (PTFE) shakes inside the tank, the impact of the PTFE on the end of the tank is buffered by the action of the perforated plate and the spring. At the same time, the rotation of the first or second vortex plate plays a multi-layer interception role on the PTFE, thereby buffering the impact force on the side wall of the tank. Furthermore, the first or second vortex plate has the effect of pushing the PTFE towards the middle, further reducing the impact force on the side wall of the tank and ensuring safety during transportation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the tank body of the present invention;

[0017] Figure 2 This is a schematic diagram of the ball screw structure in this invention;

[0018] Figure 3 This is a schematic diagram of the ball nut structure in this invention;

[0019] Figure 4 This is a schematic diagram showing the positions of the first vortex plate and the perforated plate in this invention;

[0020] Figure 5 This is a schematic diagram of the structure of the first vortex plate in this invention;

[0021] Figure 6 This is a schematic diagram showing the positions of the second vortex plate and the perforated plate in this invention;

[0022] Figure 7 This is a schematic diagram of the structure of the second vortex plate in this invention.

[0023] In the diagram: 1. Tank body; 2. Heat dissipation pipe; 3. Perforated plate; 4. Slider; 5. Slide groove; 6. Ball screw; 7. Ball nut; 8. Rotary ring; 9. Spring; 10. Fixed ring; 11. First scroll plate; 12. First reinforcing rod; 13. First connecting ring; 14. First one-way bearing; 15. Second scroll plate; 16. Second reinforcing rod; 17. Second connecting ring; 18. Second one-way bearing. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1-7 As shown, the technical solution adopted by the present invention is as follows: a PTFE transport tank with heat dissipation pipe, comprising a tank body 1 and a buffer mechanism disposed within the tank body 1.

[0026] Tank 1 is a pressure-resistant, sealed container used to hold tetrafluoroethylene.

[0027] To cool the interior of tank 1 and prevent the tetrafluoroethylene from undergoing a dangerous self-polymerization reaction due to temperature rise, heat dissipation pipes 2 are embedded in the side wall of tank 1. Preferably, the heat dissipation pipes 2 have a spiral coiled structure to maximize the heat exchange area. The heat dissipation pipes 2 are connected to an external refrigeration unit (not shown in the figure) to form a circulating cooling system, which continuously removes heat from the interior of tank 1, ensuring safety during transportation.

[0028] During transportation, bumps, acceleration, or braking can cause the tetrafluoroethylene (PTFE) to slosh inside tank 1. A buffer mechanism is used to absorb and convert the energy from this sloshing, ensuring safety during transport.

[0029] like Figure 1As shown, the buffer mechanism includes a perforated plate 3 and a first vortex plate 11 and a second vortex plate 15 respectively disposed on both axial sides of the perforated plate 3. Figure 1 , Figure 2 As shown, in this embodiment, multiple perforated plates 3 are provided, and the multiple perforated plates 3 are spaced apart along the axial direction of the tank body 1. Each perforated plate 3 has a first vortex plate 11 and a second vortex plate 15 respectively provided on both sides.

[0030] The first scroll plate 11 and the second scroll plate 15 are connected to the corresponding perforated plate 3 via a one-way transmission assembly. This allows the first scroll plate 11 to rotate when the perforated plate 3 slides along a first direction, and the second scroll plate 15 to rotate when the perforated plate 3 slides along a second direction. The spiral directions of the first scroll plate 11 and the second scroll plate 15 are opposite.

[0031] The perforated plate 3 is slidably disposed along the axial direction of the tank body 1. To achieve smooth movement of the perforated plate 3, an axially extending groove 5 is provided on the inner wall of the tank body 1. A slider 4 is fixed to the outer side of the perforated plate 3, and the slider 4 is slidably assembled in the groove 5.

[0032] The unidirectional transmission assembly includes a ball screw pair, in which the ball screw 6 is fixedly mounted inside the tank body 1 and coaxial with the tank body 1. In this embodiment, multiple ball nuts 7 are fitted onto the ball screw 6, and each ball nut 7 corresponds one-to-one with a multiple perforated plate 3. The ball nuts 7 are rotatably connected to the corresponding perforated plate 3. When the PTFE impacts the perforated plate 3 and causes it to slide axially, the ball nuts 7 will move along the ball screw 6 and rotate simultaneously.

[0033] The first scroll plate 11 is mounted on the ball nut 7 via the first one-way bearing 14, and the second scroll plate 15 is mounted on the ball nut 7 via the second one-way bearing 18. The locking directions of the first one-way bearing 14 and the second one-way bearing 18 are set to be opposite.

[0034] like Figure 1 As shown, when the tetrafluoroethylene flows to the right inside the tank 1, it pushes the perforated plate 3 to move to the right, that is, the perforated plate 3 slides along the first direction. The ball nut 7 rotates as the perforated plate 3 moves to the right.

[0035] The ball nut 7 drives the first scroll plate 11 to rotate clockwise via the first one-way bearing 14, such as... Figure 4 The direction is shown. The second one-way bearing 18 is in an idle state, and the second scroll plate 15 does not rotate.

[0036] When the PTFE moves to the right, the perforated plate 3 blocks its movement, converting the kinetic energy into radial pressure on the side wall of tank 1, thus increasing the local pressure on the side wall. The first vortex plate 11, with its spiral structure, intercepts, disturbs, and guides the PTFE impacting the side wall of tank 1 in multiple layers, gradually decomposing and dissipating the impact force, thereby buffering the impact on the side wall of tank 1. Simultaneously, the rotation of the first vortex plate 11 pushes the PTFE near it towards the axis of tank 1, further buffering the impact on the inner wall of tank 1.

[0037] Similarly, when PTFE flows to the left within tank 1, it pushes the perforated plate 3 to move to the left, i.e., the perforated plate 3 slides along the second direction. The ball nut 7 rotates simultaneously with the perforated plate 3 moving to the left, and the ball nut 7 drives the second vortex plate 15 to rotate via the second one-way bearing 18, while the first one-way bearing 14 idles. When PTFE moves to the left, due to the blocking effect of the perforated plate 3, the perforated plate 3 converts the kinetic energy of the PTFE moving to the left into radial pressure on the side wall of tank 1, increasing the pressure of PTFE on the side wall of tank 1. The second vortex plate 15, with its spiral structure, intercepts, disturbs, and guides the PTFE rushing towards the side wall of tank 1 in multiple layers, decomposing and dissipating the impact force layer by layer, thus buffering the impact force on the side wall of tank 1. Simultaneously, the rotation of the second vortex plate 15 pushes the PTFE near the second vortex plate 15 towards the axis of tank 1, further buffering the impact force on the inner wall of tank 1.

[0038] A first reinforcing rod 12 is fixed to the first scroll plate 11, and a first connecting ring 13 is fixed to the end of the first reinforcing rod 12. The first connecting ring 13 is fixed to the outer ring of the first one-way bearing 14. Similarly, a second reinforcing rod 16 is fixed to the second scroll plate 15, and a second connecting ring 17 is fixed to the end of the second reinforcing rod 16. The second connecting ring 17 is fixed to the outer ring of the second one-way bearing 18. The inner rings of both the first one-way bearing 14 and the second one-way bearing 18 are fixedly connected to the ball nut 7.

[0039] Springs 9 are provided on both axial sides of the ball nut 7. The springs 9 are sleeved on the ball screw 6, with one end fixedly connected to a rotating ring 8 and the other end fixedly connected to a fixed ring 10. The rotating ring 8 rotatably engages with the ball nut 7, and the fixed ring 10 is fixedly connected to the ball screw 6. When the PTFE impacts the perforated plate 3 and causes it to slide axially, the spring 9 on one side of the perforated plate 3 is stretched, while the spring 9 on the other side is compressed, thus buffering the PTFE.

[0040] Working principle: When in use, PTFE is loaded into tank 1, and then the coolant flows out from the refrigeration unit and into the heat dissipation pipe 2 to absorb the heat in tank 1. The coolant that has absorbed the heat returns to the refrigeration unit and is cooled again. This cycle is repeated to ensure that the PTFE in tank 1 is in a low-temperature safe state.

[0041] Multiple perforated plates 3 divide the tank 1 into several relatively independent areas, allowing for zoned storage of tetrafluoroethylene and effectively limiting the amplitude of tetrafluoroethylene sloshing.

[0042] During transportation, when the vehicle's movement causes the PTFE inside tank 1 to flow to the right, it impacts the perforated plate 3, causing the perforated plate 3 to move to the right. The perforated plate 3 drives the ball bearing nut 7 to move to the right, and the ball bearing nut 7 rotates simultaneously. The ball bearing nut 7 drives the first scroll plate 11 and the second scroll plate 15 to move to the right, and at the same time, the ball bearing nut 7 drives the first scroll plate 11 to rotate through the first one-way bearing 14. Due to the movement of the perforated plate 3, the spring 9 will deform and generate elastic potential energy, which will consume part of the kinetic energy of the PTFE, thereby buffering the impact force of the PTFE on the right end wall of tank 1.

[0043] When the PTFE moves to the right, the perforated plate 3 blocks its movement, converting the kinetic energy into radial pressure on the side wall of tank 1, thus increasing the local pressure on the side wall. The first vortex plate 11, with its spiral structure, intercepts, disturbs, and guides the PTFE impacting the side wall of tank 1 in multiple layers, gradually decomposing and dissipating the impact force, thereby buffering the impact on the side wall of tank 1. Simultaneously, the rotation of the first vortex plate 11 pushes the PTFE near it towards the axis of tank 1, further buffering the impact on the inner wall of tank 1.

[0044] When the PTFE flows to the left, it impacts the perforated plate 3, causing the plate to move to the left. The ball nut 7 rotates as the perforated plate 3 moves to the left, and through the second one-way bearing 18, it drives the second scroll plate 15 to rotate. The movement of the perforated plate 3 causes the spring 9 to deform, generating elastic potential energy, which consumes some of the kinetic energy of the PTFE, thus buffering the impact of the PTFE on the left end wall of the tank 1.

[0045] When the PTFE moves to the left, the perforated plate 3 blocks its movement, converting the kinetic energy into radial pressure on the side wall of tank 1, thus increasing the pressure. The second vortex plate 15, with its spiral structure, intercepts, disturbs, and guides the PTFE impacting the side wall of tank 1 in multiple layers, gradually decomposing and dissipating the impact force, thereby buffering the impact on the side wall of tank 1. Simultaneously, the rotation of the second vortex plate 15 pushes the PTFE near it towards the axis of tank 1, further buffering the impact on the inner wall of tank 1.

[0046] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A tetrafluoroethylene transport tank with heat dissipation pipes, comprising a tank body (1), characterized in that: A buffer mechanism is provided inside the tank (1). The buffer mechanism includes a perforated plate (3) that slides along the axial direction of the tank (1). A first vortex plate (11) and a second vortex plate (15) are respectively provided on both sides of the axial direction of the perforated plate (3). The first vortex plate (11) and the second vortex plate (15) are connected to the perforated plate (3) through a one-way transmission assembly, so that when the perforated plate (3) slides along the first direction, it drives the first vortex plate (11) to rotate, and when it slides along the second direction, it drives the second vortex plate (15) to rotate. The first vortex plate (11) and the second vortex plate (15) are configured to: when driven to rotate, alleviate the impact of tetrafluoroethylene on the side wall of the tank (1) through their own spiral structure, and guide the tetrafluoroethylene to flow in the direction of the tank (1) axis, further buffering the impact on the side wall of the tank (1).

2. The PTFE transport tank with heat dissipation pipe according to claim 1, characterized in that: The one-way transmission assembly includes a ball screw pair, in which the ball screw (6) is fixed in the tank body (1), and the ball nut (7) in the ball screw pair is rotatably connected to the perforated plate (3); the first scroll plate (11) is mounted on the ball nut (7) through the first one-way bearing (14), and the second scroll plate (15) is mounted on the ball nut (7) through the second one-way bearing (18); the locking directions of the first one-way bearing (14) and the second one-way bearing (18) are opposite.

3. A PTFE transport tank with a heat dissipation pipe according to claim 2, characterized in that: Springs (9) are provided on both sides of the ball nut (7) along its axial direction; the springs (9) are sleeved on the ball screw (6), one end of the spring (9) is fixedly connected to a swivel ring (8), and the other end is fixedly connected to a fixed ring (10); the swivel ring (8) is rotatably connected to the ball nut (7), and the fixed ring (10) is fixedly connected to the ball screw (6).

4. A PTFE transport tank with a heat dissipation pipe according to claim 2, characterized in that: The first vortex plate (11) is fixedly connected to the outer ring of the first one-way bearing (14) via the first connecting ring (13); the second vortex plate (15) is fixedly connected to the outer ring of the second one-way bearing (18) via the second connecting ring (17).

5. A PTFE transport tank with a heat dissipation pipe according to claim 4, characterized in that: The first vortex plate (11) is fixedly connected to the first reinforcing rod (12), and the first connecting ring (13) is fixedly connected to the first reinforcing rod (12); the second vortex plate (15) is fixedly connected to the second reinforcing rod (16), and the second connecting ring (17) is fixedly connected to the second reinforcing rod (16).

6. A tetrafluoroethylene transport tank with heat dissipation pipes according to claim 1, characterized in that: A heat dissipation pipe (2) is embedded in the side wall of the tank (1).

7. A PTFE transport tank with a heat dissipation pipe according to claim 6, characterized in that: The heat dissipation pipe (2) has a spiral coiled structure.

8. A PTFE transport tank with a heat dissipation pipe according to claim 1, characterized in that: A slider (4) is fixedly connected to the outside of the perforated plate (3), and the slider (4) is slidably disposed in a groove (5) opened on the inner wall of the tank (1).

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