A corrosion and seepage prevention inner lining four-fluoride storage tank

Abstract

The application discloses a kind of anticorrosive and anti-seepage inner lining four fluorine storage tank, it is related to four fluorine storage tank technical field including: tank body, two sides surface of tank body is provided with two pull handle, and the both ends of tank body are provided with one connecting port respectively, and the inside of tank body is provided with inner lining cylinder, and inner cylinder mechanism includes: inner tank, and inner tank is located in the inside of tank body, and the both ends of inner tank are provided with one side tank cover respectively, and inner lining cylinder is located in the inside of inner tank, and drive assembly includes: drive box, and drive box is fixedly installed on the upper surface of tank body, and the inside of drive box is provided with drive motor, and the bottom surface of drive motor is fixedly connected with the upper surface of tank body, and detection mechanism includes: multiple elastic trigger ropes, and elastic trigger rope is located in the inside of inner lining cylinder, in the scheme, by being provided with inner cylinder mechanism and detection mechanism, effectively prevent the tank body rupture or leakage caused by excessive corrosion, avoid the overall failure caused by local corrosion too fast, to prolong the overall service life of tank body.

Description

Technical Field

[0001] This invention relates to the field of PTFE storage tank technology, specifically to a PTFE-lined storage tank that is corrosion-resistant and leak-proof. Background Technology

[0002] In many industries such as chemical, pharmaceutical, food and electronics, the requirements for storage containers are becoming increasingly stringent, especially the demand for corrosion and seepage prevention performance. Traditional storage tank materials often cannot maintain the structural integrity and purity of the stored medium in the face of corrosive media such as strong acids and strong alkalis. Against this background, corrosion-resistant and seepage-proof PTFE-lined storage tanks have emerged. By uniformly coating the inner wall of the storage tank with PTFE material, a strong anti-corrosion barrier is formed to ensure the long-term safety and stability of the stored medium.

[0003] In existing liquid storage technologies, the monitoring of the interior of PTFE-lined storage tanks mainly relies on periodic manual inspections. This method is not only time-consuming and labor-intensive, but also subjective and prone to delays. Manual inspections may miss important information due to improper operation or negligence, often making it difficult to detect and address corrosion problems in a timely manner, leading to equipment damage, liquid leaks, or even safety accidents. Furthermore, the long-term corrosion protection of traditional PTFE-lined storage tanks is often difficult to guarantee when facing complex and variable media environments. Especially under extreme conditions such as strong acids and alkalis, the material corrosion rate accelerates, resulting in a shortened service life of the storage tank and increased replacement and maintenance costs. When dealing with corrosion problems, there is often a lack of effective protective measures. Once corrosion occurs, only local repairs or component replacements can be performed, which cannot fundamentally solve the problem of corrosion spread and aggravation. In addition, traditional storage tanks also lack effective means to adjust the uneven corrosion levels between the bottom and top, leading to increased overall corrosion of the storage tank and affecting its service life. Summary of the Invention

[0004] The purpose of this invention is to provide a corrosion-resistant and leak-proof PTFE-lined storage tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corrosion-resistant and leak-proof PTFE-lined storage tank, comprising:

[0006] The tank body has two bottom supports fixedly installed on its bottom surface for support, two handles on each side surface of the tank body, a connection port at each end of the tank body, and an internal liner inside the tank body.

[0007] The inner cylinder mechanism includes: an inner tank located inside the tank body, a side tank cover being provided at each end of the inner tank, and an inner liner located inside the inner tank;

[0008] The drive assembly includes: a drive box, which is fixedly installed on the upper surface of the tank, and a drive motor is installed inside the drive box, with the bottom surface of the drive motor fixedly connected to the upper surface of the tank.

[0009] The testing mechanism includes: multiple elastic trigger ropes located inside the inner liner. The multiple elastic trigger ropes are divided into two groups, and the elastic trigger ropes in each group are arranged vertically inside the inner liner.

[0010] Furthermore, the inner liner has a storage cavity for storing liquid media inside, and an inner interface is provided at each end of the inner liner, with the two inner interfaces respectively cooperating with two connection ports.

[0011] Furthermore, the drive assembly also includes: a meshing gear disc, which is disposed at the end of the output shaft of the drive motor; a meshing collar that cooperates with the meshing gear disc is disposed at the center of the inner tank; and multiple bottom rollers are disposed on the inner bottom surface of the tank body to provide rotational speed when the inner tank rotates.

[0012] Furthermore, each end of the elastic trigger rope is fitted with a limiting ring and an auxiliary engagement sleeve, and each end of the elastic trigger rope is connected to a trigger ring plate, with a trigger top ring provided on the side surface of the trigger ring plate.

[0013] Furthermore, a connecting protrusion is fixedly installed on one side surface of the trigger ring plate, and multiple elastic connecting ropes are provided on the side surface of the connecting protrusion. One end of the elastic connecting rope is fixedly connected to one side surface of the side can cover, and multiple trigger sheaths that cooperate with the trigger top ring are provided on the side surface of the side can cover opposite to the storage cavity.

[0014] Furthermore, a fixing ring is fixedly installed inside the trigger sheath, which is opposite to the end of the storage cavity. A placement ring plate is provided on one side surface of the fixing ring, and a plurality of connecting springs are provided on one side surface of the placement ring plate. A rubber spring plate that cooperates with the trigger top ring is also provided on one side surface of the placement ring plate. The other end of the connecting spring is fixedly connected to one side surface of the fixing ring, and an electrical contact plate is provided on the other side surface of the placement ring plate.

[0015] Furthermore, a power supply pipe is also provided inside the trigger sheath. A control switch that cooperates with the electrical contact is provided at one end of the power supply pipe that is close to the mounting ring. An indicator light is provided at the other end of the power supply pipe. Two light boxes are provided on one side surface of the side can cover. The indicator light is located at the center of the light box.

[0016] Furthermore, a power supply pipe is also provided inside the trigger sheath. A control switch that cooperates with the electrical contact is provided at one end of the power supply pipe that is close to the mounting ring. An indicator light is provided at the other end of the power supply pipe. Two light boxes are provided on one side surface of the side can cover. The indicator light is located at the center of the light box.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this solution, by setting up an inner cylinder mechanism and utilizing multiple sets of elastic trigger ropes installed in the inner liner, the corrosion of the inner liner can be monitored at multiple points at different thickness locations. The distributed monitoring method achieves a more comprehensive monitoring effect than single-point monitoring, enabling staff to detect local corrosion problems earlier, improving the accuracy and timeliness of monitoring. The multi-point monitoring mechanism reduces the need for regular manual inspections, lowering maintenance and time costs. Once corrosion causes the elastic trigger rope to break, an alarm mechanism is immediately triggered, reducing safety hazards caused by failure to detect corrosion in time. In addition, by monitoring the corrosion of the inner liner in real time and rotating the inner tank to balance corrosion, the service life of the storage tank can be significantly extended.

[0019] 2. In this solution, a detection mechanism is installed, and the entire process from corrosion monitoring to alarm is automated through a signal transmission box and connecting cables. Once corrosion occurs in the internal liner and the alarm mechanism is triggered, the indicator light will immediately illuminate. Staff can directly observe the corrosion situation through the viewing window, reducing the possibility of human intervention and misjudgment, and improving the accuracy and efficiency of monitoring. When the indicator light illuminates, the signal transmission box can quickly transmit the signal to the drive motor to start the rotation mechanism to balance the degree of corrosion. This helps to deal with corrosion problems in a timely manner, prevent further corrosion from aggravating and potentially causing equipment failure or safety accidents, and reduce operational risks. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the internal structure of the tank of the present invention.

[0023] Figure 4 This is a schematic diagram of the inner cylinder mechanism of the present invention.

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the inner cylinder mechanism of the present invention.

[0025] Figure 6 This is a schematic diagram of the internal liner structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the detection mechanism of the present invention.

[0027] Figure 8 This is a schematic diagram of the internal structure of the trigger sheath of the present invention.

[0028] Figure 9 For the present invention Figure 8 Enlarged view of point A in the middle.

[0029] In the diagram: 1. Tank body; 2. Bottom support; 3. Drive box; 4. Viewing window; 5. Connection port; 6. Pull handle; 7. Inner tank; 8. Engaging collar; 9. Engaging gear plate; 10. Drive motor; 11. Bottom roller; 12. Side tank cover; 13. Inner interface; 14. Lamp box; 15. Connecting cable; 16. Signal transmission box; 17. Trigger top ring; 18. Inner liner; 19. Trigger ring plate; 20. Restriction ring; 21. Auxiliary engagement sleeve; 22. Connecting protrusion; 23. Elastic connecting rope; 24. Storage cavity; 25. Elastic trigger rope; 26. Power supply pipe; 27. Trigger sheath; 28. Indicator light; 29. ​​Fixing ring; 30. Mounting ring plate; 31. Rubber spring plate; 32. Connecting spring; 33. Electrical contact plate; 34. Control switch. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1 to 9 A corrosion-resistant and leak-proof PTFE-lined storage tank, comprising:

[0032] Tank 1 has two bottom supports 2 fixedly installed on its bottom surface for support. Two handles 6 are provided on each side surface of the tank 1. A connection port 5 is provided at each end of the tank 1. An inner liner 18 is provided inside the tank 1. The inner liner 18 is used to store the liquid medium inside the tank 1. After the staff injects the liquid medium into the tank 1, the liquid medium enters the tank 1 through the connection ports 5 on both sides of the tank 1 and enters the inner liner 18 for storage.

[0033] The above process is the basic process for the current use of PTFE-lined storage tanks.

[0034] However, in actual use, when using the inner liner 18 to store liquid media, the stored liquid media may be corrosive, and there may be some precipitates with stronger corrosiveness than the liquid itself inside the liquid media. After a long period of use, the corrosive substances in the liquid media tend to adhere to the bottom surface of the inner liner 18 for a long time and corrode it. After a period of use, the inner liner 18 needs to be replaced. However, because the amount of liquid stored each time is different, the inner upper surface of the inner liner 18 has fewer contacts with the corrosive liquid media than the bottom surface, and the corrosion effect is also less. It is easy for the bottom surface of the inner liner 18 to be severely corroded and unusable, while the top surface is relatively intact. In this case, replacement will result in low utilization efficiency of the inner liner 18.

[0035] In addition, during use, the corrosion of the inner liner 18 needs to be checked and recorded by the staff regularly, and the replacement should be determined based on the observation results. However, a set of inner liners 18 may have stored liquid media of different properties during its service life. The corrosive effects of various liquid media are different, and it is not certain whether they are corrosive. Regular inspection will result in the inability to accurately predict the internal condition of the inner liner 18 when a large amount of corrosive liquid media is loaded in a short period of time. The difficulty in prediction makes it impossible to replace the inner liner 18 that is about to become unusable in time. During the interval between two regular inspections, the inner liner 18 may be corroded and damaged, causing corrosion to the inside of the tank 1.

[0036] Therefore, based on the above problems, we first designed an inner cylinder mechanism. The inner cylinder mechanism is used to store liquid media and extends the service life of the inner liner 18 by rotation. The inner cylinder mechanism includes: an inner tank 7, which is located inside the tank body 1. A side tank cover 12 is provided at both ends of the inner tank 7. An inner liner 18 is located inside the inner tank 7. A storage cavity 24 for storing liquid media is opened inside the inner liner 18. An inner interface 13 is provided at both ends of the inner liner 18. The two inner interfaces 13 are respectively matched with two connection ports 5.

[0037] When the inner cylinder mechanism is in use, it needs to rotate 180 degrees intermittently inside the tank 1. The upper surface of the tank 1 is provided with a drive assembly for driving the inner cylinder mechanism to rotate. The drive assembly includes: a drive box 3, which is fixedly installed on the upper surface of the tank 1. The drive box 3 is provided with a drive motor 10 inside. The bottom surface of the drive motor 10 is fixedly connected to the upper surface of the tank 1. The output shaft of the drive motor 10 is provided with a meshing gear plate 9. The center of the inner tank 7 is provided with a meshing collar 8 that cooperates with the meshing gear plate 9. The inner bottom surface of the tank 1 is provided with multiple bottom rollers 11 for providing rotational speed when the inner tank 7 rotates.

[0038] When the inner liner 18 needs to be rotated, signals are sent through two signal transmission boxes 16 to start the drive motor 10. Through the engagement of the meshing gear plate 9 and the meshing collar 8, the inner tank 7 and the inner liner 18 are rotated inside the tank body 1. The bottom roller 11 provides the necessary support and rolling to ensure that the rotation process is smooth. The rotation angle is 180 degrees, so that the inner tank 7 and the inner liner 18 can form the effect of the top and bottom interchanged inside, so as to achieve the balance of the corrosion degree of the bottom and the top.

[0039] Meanwhile, based on the aforementioned issues, we also designed a detection mechanism to monitor the condition of the inner liner 18 during use. The detection mechanism includes multiple elastic trigger ropes 25 located inside the inner liner 18. The multiple elastic trigger ropes 25 are divided into two groups, with each group's elastic trigger ropes 25 arranged vertically inside the inner liner 18. The elastic trigger ropes 25 and the inner liner 18 are made of the same material, and each elastic trigger rope 25 has a limiting ring 20 fitted onto both ends. An auxiliary coupling sleeve 21 is provided. Both ends of the elastic trigger rope 25 are connected to a trigger ring plate 19. A trigger top ring 17 is provided on the side surface of the trigger ring plate 19. A connecting protrusion 22 is also fixedly installed on one side surface of the trigger ring plate 19. Multiple elastic connecting ropes 23 are provided on the side surface of the connecting protrusion 22. One end of each elastic connecting rope 23 is fixedly connected to one side surface of the side can lid 12. Multiple trigger sheaths 27 that cooperate with the trigger top ring 17 are provided on the side surface of the side can lid 12 opposite to the storage cavity 24. The interior of the trigger sheaths 27 is fixed. A fixing ring 29 is installed opposite to the end of the storage cavity 24. A mounting ring 30 is provided on one side surface of the fixing ring 29. A plurality of connecting springs 32 are provided on one side surface of the mounting ring 30. A rubber spring plate 31 that cooperates with the trigger top ring 17 is also provided on one side surface of the mounting ring 30. The other end of the connecting spring 32 is fixedly connected to one side surface of the fixing ring 29. An electric contact 33 is provided on the other side surface of the mounting ring 30. A power supply pipe 26 is also provided inside the trigger sheath 27. The end of the power supply pipe 26 is close to the mounting ring 30. A control switch 34 is provided to cooperate with the electric contact 33. An indicator light 28 is provided at the other end of the power supply pipe 26. Two lamp boxes 14 are provided on one side surface of the side can cover 12. The indicator light 28 is located at the center of the lamp box 14. Multiple viewing windows 4 are provided on the upper surface of the can body 1 to facilitate observation of the status of the indicator light 28. Two signal transmission boxes 16 are provided on the side surface of the side can cover 12. A connecting cable 15 is provided on the bottom surface of the lamp box 14. The lamp box 14 is electrically connected to the signal transmission box 16 through the connecting cable 15.

[0040] In use, because multiple elastic trigger ropes 25 are vertically installed inside the inner liner 18, with trigger ring plates 19 connected to both ends, when the inner liner 18 is corroded and its wall thickness decreases, the elastic trigger ropes 25 will gradually be exposed into the storage cavity 24 according to their installation positions as the wall thickness decreases, and will begin to receive the same corrosion effect as the inner liner 18. When the elastic trigger ropes 25 break due to corrosion, because the elastic trigger ropes 25 are in a taut state, after the breakage, the limiting rings 20 at both ends will quickly move towards the auxiliary connecting sleeve 21 under the force, and stop when they come into contact with the auxiliary connecting sleeve 21 because they are restricted, while blocking the opening to prevent the internal liquid from overflowing. The trigger ring plate 19 moves accordingly, and the trigger top ring 17 on the trigger ring plate 19 moves with it. When the trigger top ring 17 contacts the rubber spring plate 31 on the mounting ring plate 30, the rubber spring plate 31 is compressed, the connecting spring 32 is stressed, and the mounting ring plate 30 and the electrical contact plate 3 are connected. 3. Pushing the rubber spring plate 31 against one side of the power supply pipe 26, the compression of the rubber spring plate 31 is sufficient to make the electric contact 33 contact the control switch 34, thereby turning on the circuit. The power supply pipe 26 provides power to the entire detection system. When the circuit is turned on, the indicator light 28 lights up in the lamp box 14. The extent of corrosion of the inner liner 18 can be directly observed through the viewing window 4. At the same time, the signal transmission box 16 receives the signal from the lamp box 14 through the connecting cable 15. When one set of indicator lights 28 lights up, the signal can be quickly received and transmitted to the drive motor 10, so that the drive motor 10 drives the inner tank 7 to rotate, thereby balancing the corrosion degree on the upper and lower sides. By setting multiple sets of elastic trigger ropes 25 and trigger ring plates 19, multi-point monitoring can be carried out at different thickness positions of the inner liner 18, improving the accuracy and comprehensiveness of monitoring. Even when liquid media of different properties are stored alternately, the corrosion status of the inner liner 18 can be reflected in time, avoiding the limitations of periodic inspection.

[0041] The working principle of this invention is:

[0042] When in use, after the staff injects the liquid medium into the inside of the tank 1, the liquid medium enters the inside of the tank 1 through the connection ports 5 on both sides of the tank 1 and enters the inside of the inner liner 18 for storage.

[0043] During liquid storage, multiple elastic trigger ropes 25 are vertically arranged inside the inner liner 18, with each end connected to a trigger ring plate 19. When the inner liner 18 is corroded, causing its wall thickness to decrease, the elastic trigger ropes 25 will gradually be exposed into the storage cavity 24 according to their arrangement as the wall thickness decreases. When the elastic trigger ropes 25 break due to corrosion, the limiting rings 20 at both ends quickly move towards the auxiliary coupling sleeve 21 under the applied force. They stop upon contact with the auxiliary coupling sleeve 21 due to the constraint, simultaneously blocking the opening to prevent internal liquid from overflowing. The trigger ring plate 19 moves accordingly, and the trigger top ring 17 on the trigger ring plate 19 moves with it. When the trigger top ring 17 contacts the rubber spring plate 31 on the mounting ring plate 30... The rubber spring plate 31 is compressed, pushing the mounting ring 30 and the electrical contact 33 towards one side of the power supply pipe 26. The compression of the rubber spring plate 31 is sufficient to make the electrical contact 33 contact the control switch 34, thereby turning on the circuit. The power supply pipe 26 provides power to the entire detection system. When the circuit is turned on, the indicator light 28 lights up in the light box 14. The extent to which the internal liner 18 is corroded can be directly observed through the viewing window 4. By setting multiple sets of elastic trigger ropes 25 and trigger ring plates 19, multi-point monitoring can be carried out at different thickness positions of the internal liner 18, improving the accuracy and comprehensiveness of monitoring. Even when liquid media of different properties are stored alternately, the corrosion status of the internal liner 18 can be reflected in time, avoiding the limitations of periodic inspection.

[0044] Meanwhile, the signal transmission box 16 receives signals from the lamp box 14 via the connecting cable 15. When one set of indicator lights 28 is lit, it can quickly receive the signal and transmit it to the drive motor 10, causing the drive motor 10 to rotate the inner tank 7, thereby balancing the corrosion levels on the upper and lower sides. When it is necessary to rotate the inner liner 18, the two signal transmission boxes 16 send signals to start the drive motor 10, and through the engagement of the meshing gear plate 9 and the meshing collar 8, drive the inner tank 7 and the inner liner 18 to rotate inside the tank body 1. The bottom roller 11 provides the necessary support and rolling to ensure that the rotation process is smooth. The rotation angle is 180 degrees, so that the inner tank 7 and the inner liner 18 can form the effect of the top and bottom interchanged inside, so as to achieve a balance between the corrosion levels at the bottom and top.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A corrosion-resistant and leak-proof PTFE-lined storage tank, characterized in that, include: The tank (1) has two bottom supports (2) fixedly installed on its bottom surface for support. Two handles (6) are provided on each side surface of the tank (1). A connection port (5) is provided at each end of the tank (1). An internal liner (18) is provided inside the tank (1). The inner cylinder mechanism includes: an inner tank (7), which is located inside the tank body (1), and a side tank cover (12) is provided at each end of the inner tank (7). The inner liner (18) is located inside the inner tank (7). The inner liner (18) has a storage cavity (24) for storing liquid medium. The drive assembly includes a drive box (3) and a meshing gear disc (9). The drive box (3) is fixedly installed on the upper surface of the tank body (1). A drive motor (10) is installed inside the drive box (3). The bottom surface of the drive motor (10) is fixedly connected to the upper surface of the tank body (1). The meshing gear disc (9) is located at the end of the output shaft of the drive motor (10). A meshing collar (8) that cooperates with the meshing gear disc (9) is provided at the center of the inner tank (7). The drive assembly drives the inner tank (7) and the inner liner (18) to rotate. The rotation angle is 180 degrees, so that the inner tank (7) and the inner liner (18) can form the effect of the top and bottom interchange positions inside, so as to achieve the balance of the corrosion degree of the bottom and the top. The testing mechanism includes: multiple elastic trigger ropes (25), the elastic trigger ropes (25) are located inside the inner liner (18), the multiple elastic trigger ropes (25) are divided into two groups, and the elastic trigger ropes (25) in each group are arranged vertically inside the inner liner (18); Each end of the elastic trigger rope (25) is fitted with a limiting ring (20) and an auxiliary connecting sleeve (21). Each end of the elastic trigger rope (25) is connected to a trigger ring plate (19). A trigger top ring (17) is provided on the side surface of the trigger ring plate (19). A connecting protrusion (22) is fixedly installed on one side surface of the trigger ring plate (19). A plurality of elastic connecting ropes (23) are provided on the side surface of the connecting protrusion (22). One end of the elastic connecting rope (23) is fixedly connected to one side surface of the side can cover (12). A plurality of trigger sheaths (27) that cooperate with the trigger top ring (17) are provided on the side surface of the side can cover (12) opposite to the storage cavity (24). The trigger sheath (27) is fixedly installed with a fixing ring (29) opposite to the end of the storage cavity (24). A placement ring plate (30) is provided on one side surface of the fixing ring (29). A plurality of connecting springs (32) are provided on one side surface of the placement ring plate (30). A rubber spring plate (31) that cooperates with the trigger top ring (17) is also provided on one side surface of the placement ring plate (30). The other end of the connecting spring (32) is fixedly connected to one side surface of the fixing ring (29). An electric contact plate (33) is provided on the other side surface of the placement ring plate (30).

2. The PTFE-lined storage tank according to claim 1, characterized in that: The inner liner (18) is provided with an inner interface (13) at each end, and the two inner interfaces (13) are respectively matched with two connection ports (5).

3. The PTFE-lined storage tank according to claim 1, characterized in that: The inner bottom surface of the tank (1) is provided with a plurality of bottom rollers (11) for providing rotational speed when the inner tank (7) rotates.

4. The PTFE-lined storage tank according to claim 1, characterized in that: The trigger sheath (27) is also equipped with a power supply pipe (26). The end of the power supply pipe (26) that is close to the mounting ring (30) is equipped with a control switch (34) that cooperates with the electric contact (33). The other end of the power supply pipe (26) is equipped with an indicator light (28). Two lamp boxes (14) are provided on one side surface of the side can cover (12). The indicator light (28) is located at the center of the lamp box (14).

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