Heatable maleic anhydride storage tank

Abstract

The utility model is applicable to the technical field of maleic anhydride storage, and provides a heatable maleic anhydride storage tank which comprises a storage tank assembly, a heating control module is arranged on the outer side of the storage tank assembly, a sealing cover assembly is arranged at the top of the storage tank assembly, a heating assembly is arranged in the storage tank assembly, and the heating assembly comprises a buckle mechanism. The buckle mechanism comprises an upper buckle main body, a lower buckle main body is installed below the upper buckle main body, a notch is formed between the upper buckle main body and the lower buckle main body, and a heating ring is arranged in the middle of the notch. And the liquid maleic anhydride is decomposed and volatilized in a high-temperature environment, so that the quality and the stability of the liquid maleic anhydride are reduced, and the effect of uniformly heating the liquid maleic anhydride is achieved.

Description

Technical Field

[0001] This utility model relates to the field of maleic anhydride storage technology, and more specifically, to a heatable maleic anhydride storage tank. Background Technology

[0002] Maleic anhydride (maleic anhydride) is a widely used four-carbon compound and is currently the world's third largest source of acid anhydrides after phthalic anhydride and acetic anhydride. It is an important basic organic chemical raw material. It is mainly used in the production of downstream fine chemical organic intermediates and specialty chemicals, such as unsaturated polyester resins, fumaric acid, succinic acid, lubricating oil additives, and agrochemicals.

[0003] Currently, maleic anhydride, as a liquid medium for transportation, boasts a series of advantages, including excellent sealing, no leakage points, safety, environmental friendliness, and ease of automatic continuous control. With its expanding applications, it is being used more and more. In existing technologies, liquid maleic anhydride, as a chemical raw material, requires canned storage in a dry, ventilated, cool, and dark place, away from fire and heat sources. Contact with oxidants, acids, alkalis, and other substances should be avoided to prevent chemical reactions.

[0004] However, during the storage of liquid maleic anhydride, crystallization will occur when the temperature is below 52.8℃ (the melting point of maleic anhydride). Due to the crystallization of maleic anhydride, it is easy to cause blockage of the transportation pipeline, affecting normal production and even causing safety accidents. If the temperature is too high, it will cause the liquid maleic anhydride to decompose and volatilize, thereby reducing the quality and stability of the liquid maleic anhydride. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heatable maleic anhydride storage tank.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heatable maleic anhydride storage tank, comprising a storage tank assembly, a heating control module disposed on the outside of the storage tank assembly, a sealing assembly disposed on the top of the storage tank assembly, a heating assembly disposed inside the storage tank assembly, the heating assembly comprising a snap-fit ​​mechanism, the snap-fit ​​mechanism comprising an upper snap-fit ​​body, a lower snap-fit ​​body mounted below the upper snap-fit ​​body, a groove disposed between the upper snap-fit ​​body and the lower snap-fit ​​body, and a heating ring disposed in the middle of the groove.

[0007] The present invention is further configured such that: the storage tank assembly includes an outer layer of storage tank, a storage tank base is installed below the outer layer of storage tank, an inner layer of storage tank is provided in the middle of the outer layer of storage tank, and a discharge port is provided at one end of the outer layer of storage tank and the inner layer of storage tank near the storage tank base.

[0008] The present invention is further configured such that: the sealing assembly includes a sealing body, the sealing body is installed above the outer layer of the storage tank, and a sealing groove is installed at the bottom of the sealing body, wherein the outer circle diameter of the sealing groove is smaller than the inner circle diameter of the outer layer of the storage tank.

[0009] The present invention is further configured such that: a groove is provided in the middle of the sealing groove, the thickness of the groove is greater than the wall thickness of the inner layer of the storage tank, and a feed inlet is provided on the sealing body.

[0010] The present invention is further configured such that: both ends of the upper buckle body are provided with upper mounting blocks, both sides of the upper buckle body are provided with upper slots, and upper mounting blocks are installed on the upper mounting blocks.

[0011] The present invention is further configured such that: both ends of the lower buckle body are provided with lower mounting blocks, both sides of the lower buckle body are provided with lower buckles, and the lower mounting blocks are provided with lower limit blocks.

[0012] The present invention is further configured such that: the upper slot is fitted with the lower buckle, the lower limit block is fitted with the upper mounting block, and the upper limit block is fitted with the lower mounting block.

[0013] The present invention is further configured such that: the heating assembly further includes a transmission mechanism, the transmission mechanism includes a transmission mounting plate, the transmission mounting plate is symmetrically installed on the inner wall of the outer layer of the storage tank, a first fixing block is installed at the upper end of the transmission mounting plate, and a drive wheel is rotatably installed in the middle of the first fixing block.

[0014] The present invention is further configured such that: a transmission motor is installed on one side of the first fixing block, the output end of the transmission motor passes through the first fixing block and is connected to the rotation shaft of the driving wheel, a second fixing block is installed at the lower end of the transmission mounting plate, a driven wheel is rotatably installed in the middle of the second fixing block, and a slide rail is provided between the first fixing block and the second fixing block.

[0015] The present invention is further configured such that: the slide rail is mounted on the transmission mounting plate, a slider is slidably mounted on the slide rail, a transmission belt is sleeved and connected to the driving wheel and the driven wheel, and the slider is connected to the transmission belt.

[0016] By adopting the above technical solution, an outer layer of the storage tank is set to protect the inner layer of the storage tank, with a gap between the outer and inner layers. The sealing body is used to seal the top of the outer and inner layers of the storage tank. The heat emitted by the heating ring is kept between the outer and inner layers of the storage tank, which achieves the effect of reducing energy consumption and heat preservation of liquid maleic anhydride.

[0017] By adopting the above technical solution, the output end of the drive motor rotates the transmission belt to drive the slider to reciprocate, which in turn drives the heating ring to reciprocate, thus achieving the effect of uniformly heating liquid maleic anhydride.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. By setting the output end of the drive motor to rotate the transmission belt, the slider reciprocates, which in turn drives the heating ring to reciprocate, thus achieving the effect of uniformly heating liquid maleic anhydride. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a heatable maleic anhydride storage tank according to the present invention.

[0021] Figure 2 for Figure 1 A schematic diagram of the explosion structure.

[0022] Figure 3 for Figure 2 A schematic diagram of the overall structure of the heating component.

[0023] Figure 4 for Figure 2 A schematic diagram of the overall structure of the transmission mechanism.

[0024] Figure 5 for Figure 2 A schematic diagram of the overall structure of the locking mechanism.

[0025] Figure 6 for Figure 2 A schematic diagram of the overall structure of the middle sealing assembly.

[0026] Figure 7 for Figure 6 A cross-sectional view along the AA direction.

[0027] Figure 8 for Figure 1 A schematic diagram of the overall structure from another perspective.

[0028] Figure 9 for Figure 8 Schematic diagram of cross section along the BB direction

[0029] Explanation of reference numerals in the attached drawings: 1. Tank assembly; 11. Tank base; 12. Outer layer of the tank; 13. Inner layer of the tank; 14. Discharge port;

[0030] 2. Capping assembly; 21. Capping body; 22. Feed inlet; 23. Capping groove;

[0031] 3. Heating assembly; 31. Transmission mechanism; 311. Transmission mounting plate; 312. Transmission motor; 313. First fixing block; 314. Drive wheel; 315. Transmission belt; 316. Slide rail; 317. Slider; 318. Second fixing block; 319. Driven wheel; 32. Buckling mechanism; 321. Upper buckling body; 322. Upper mounting block; 323. Upper slot; 324. Upper limit block; 325. Lower buckling body; 326. Lower mounting block; 327. Lower buckle; 328. Lower limit block; 33. Heating ring;

[0032] 4. Heating control module. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0035] Example 1, please refer to Figure 1-9 The present invention provides the following technical solution:

[0036] See Figure 2 A heatable maleic anhydride storage tank includes a storage tank assembly 1, a heating control module 4 disposed on the outside of the storage tank assembly 1, a capping assembly 2 disposed on the top of the storage tank assembly 1, and a heating assembly 3 disposed inside the storage tank assembly 1. The storage tank assembly 1 is used to store liquid maleic anhydride and to keep the liquid maleic anhydride warm. The capping assembly 2 is used to seal the storage tank assembly 1 to prevent the liquid maleic anhydride from losing temperature and being affected by humidity. The heating control module 4 is used to transmit control signals to the heating assembly 3 and to transmit current to the heating assembly 3.

[0037] See Figure 2 The storage tank assembly 1 includes an outer tank layer 12, a storage tank base 11 installed below the outer tank layer 12, an inner tank layer 13 disposed in the middle of the outer tank layer 12, and a discharge port 14 disposed at one end of the outer tank layer 12 and the inner tank layer 13 near the storage tank base 11.

[0038] The outer layer 12 of the storage tank provides installation conditions for the heating component 3 and provides initial protection for the liquid maleic anhydride. The outer layer 12 protects the inner layer 13 of the storage tank. The space between the outer layer 12 and the inner layer 13 of the storage tank can prevent heat loss. The discharge port 14 is located in the middle of the connection between the outer layer 12 and the storage tank base 11, and in the middle of the connection between the inner layer 13 of the storage tank. The discharge port 14 is used for the discharge of liquid maleic anhydride. When the discharge port 14 is opened, the liquid maleic anhydride stored in the inner layer 13 of the storage tank can be discharged through the discharge port 14.

[0039] See Figure 6 The sealing assembly 2 includes a sealing body 21, which is installed above the outer layer 12 of the storage tank. A sealing groove 23 is installed at the bottom of the sealing body 21, and the outer circle diameter of the sealing groove 23 is smaller than the inner circle diameter of the outer layer 12 of the storage tank.

[0040] The sealing groove 23 has a groove in the middle, and the thickness of the groove is greater than the wall thickness of the inner layer 13 of the storage tank. The sealing body 21 has a feed inlet 22.

[0041] The sealing body 21 is used to seal the top of the outer layer 12 and the inner layer 13 of the storage tank to prevent humidity from affecting and temperature from escaping. The sealing groove 23 can better seal the top of the inner layer 13 of the storage tank. The groove design can effectively prevent humid air from entering. The feed port 22 is used to input liquid maleic anhydride into the inner layer 13 of the storage tank.

[0042] See Figure 4 The heating assembly 3 also includes a transmission mechanism 31, which includes a transmission mounting plate 311. The transmission mounting plate 311 is symmetrically mounted on the inner wall of the outer layer 12 of the storage tank. A first fixing block 313 is mounted on the upper end of the transmission mounting plate 311, and a drive wheel 314 is rotatably mounted in the middle of the first fixing block 313.

[0043] A drive motor 312 is installed on one side of the first fixed block 313. The output end of the drive motor 312 passes through the first fixed block 313 and is connected to the rotation shaft of the drive wheel 314. A second fixed block 318 is installed at the lower end of the transmission mounting plate 311. A driven wheel 319 is rotatably installed in the middle of the second fixed block 318. A slide rail 316 is provided between the first fixed block 313 and the second fixed block 318.

[0044] The slide rail 316 is mounted on the transmission mounting plate 311. A slider 317 is slidably mounted on the slide rail 316. A transmission belt 315 is sleeved and connected to the drive wheel 314 and the driven wheel 319. The slider 317 is connected to the transmission belt 315.

[0045] The drive motor 312 is a forward and reverse servo motor. The transmission mechanism 31 is symmetrically installed on the inner wall of the outer layer 12 of the storage tank. When the output end of the drive motor 312 rotates, it drives the drive wheel 314 to rotate. The drive wheel 314 is driven to rotate through the transmission belt 315. When the transmission belt 315 moves, it synchronously drives the slider 317 to slide on the slide rail 316.

[0046] See Figure 5 The heating component 3 includes a latching mechanism 32, which includes an upper latching body 321 and a lower latching body 325 installed below the upper latching body 321. A groove is provided between the upper latching body 321 and the lower latching body 325, and a heating ring 33 is provided in the middle of the groove.

[0047] Both ends of the upper buckle body 321 are provided with upper mounting blocks 322, both sides of the upper buckle body 321 are provided with upper slots 323, and upper mounting blocks 324 are installed on the upper mounting blocks 322.

[0048] Both ends of the lower buckle body 325 are provided with lower mounting blocks 326, both sides of the lower buckle body 325 are provided with lower buckles 327, and the lower mounting blocks 326 are provided with lower limit blocks 328.

[0049] The upper slot 323 and the lower buckle 327 are fitted together, the lower limit block 328 and the upper mounting block 322 are fitted together, and the upper limit block 324 and the lower mounting block 326 are fitted together.

[0050] The groove shape between the upper snap-fit ​​body 321 and the lower snap-fit ​​body 325 is matched with the heating ring 33. The heating ring 33 is located in the middle of the outer layer 12 and the inner layer 13 of the storage tank. The heating ring 33 will not shake in the upper snap-fit ​​body 321 and the lower snap-fit ​​body 325. The lower snap-fit ​​327 is snapped in the upper snap-fit ​​groove 323, the lower limit block 328 is snapped in the upper mounting block 322, the upper limit block 324 is snapped in the lower mounting block 326, and the lower snap-fit ​​body 325 is mounted on the slider 317. When the slider 317 moves, it drives the lower snap-fit ​​body 325 to move, and synchronously drives the snap-fit ​​mechanism 32 to move. The heating ring 33 moves with the snap-fit ​​mechanism 32.

[0051] See Figures 3 to 9When liquid maleic anhydride is in the inner layer 13 of the storage tank, the controller sends a signal to the heating control module 7 indicating that heating is required. After receiving the signal, the heating module 7 establishes a control circuit, energizing the heating ring 33. Once energized, the output of the drive motor 312 rotates clockwise, causing the drive belt 315 to move the slider 317 downward. The slider 317 then moves the locking mechanism 32 downward, simultaneously moving the heating ring 33 downward, thus heating the inner layer 13 of the storage tank from top to bottom. When the heating ring 33 reaches the bottom, the output of the drive motor 312 rotates counterclockwise, causing the drive belt 315 to move the slider 317 upward. The slider 317 then moves the locking mechanism 32 upward, simultaneously moving the heating ring 33 upward, thus heating the inner layer 13 of the storage tank from bottom to top. This reciprocating motion maintains the temperature of the liquid maleic anhydride within the required temperature range (above 52.8°C).

[0052] By setting the output end of the drive motor 312 to rotate the drive belt 315, the slider 317 is driven to reciprocate, which in turn drives the heating ring 33 to reciprocate, thus achieving the effect of uniformly heating the liquid maleic anhydride.

[0053] By setting an outer layer 12 to protect the inner layer 13 of the storage tank, and leaving a gap between the outer layer 12 and the inner layer 13, the sealing body 21 is used to seal the top of the outer layer 12 and the inner layer 13 of the storage tank. The heat emitted by the heating ring 33 is kept between the outer layer 12 and the inner layer 13 of the storage tank, which achieves the effect of reducing energy consumption and keeping the liquid maleic anhydride warm.

[0054] By rotating the transmission belt 315 at the output end of the transmission motor 312, the heating ring 33 is moved synchronously. When the liquid maleic anhydride is not full in the inner layer 13 of the storage tank, the liquid maleic anhydride can be heated to the required height, achieving the effect of controllable heating height and avoiding overheating of the air in the storage tank.

[0055] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A heatable maleic anhydride storage tank, characterized in that: The system includes a storage tank assembly (1), a heating control module (4) is provided on the outside of the storage tank assembly (1), a capping assembly (2) is provided on the top of the storage tank assembly (1), and a heating assembly (3) is provided inside the storage tank assembly (1). The heating assembly (3) includes a snap-fit ​​mechanism (32), the snap-fit ​​mechanism (32) includes an upper snap-fit ​​body (321), a lower snap-fit ​​body (325) is installed below the upper snap-fit ​​body (321), a slot is provided between the upper snap-fit ​​body (321) and the lower snap-fit ​​body (325), and a heating ring (33) is provided in the middle of the slot.

2. The heatable maleic anhydride storage tank according to claim 1, characterized in that: The storage tank assembly (1) includes an outer tank layer (12), a storage tank base (11) is installed below the outer tank layer (12), an inner tank layer (13) is provided in the middle of the outer tank layer (12), and a discharge port (14) is provided at one end of the outer tank layer (12) and the inner tank layer (13) near the storage tank base (11).

3. A heatable maleic anhydride storage tank according to claim 2, characterized in that: The capping assembly (2) includes a capping body (21), which is installed above the outer layer (12) of the storage tank. A capping groove (23) is installed at the bottom of the capping body (21), and the outer circle diameter of the capping groove (23) is smaller than the inner circle diameter of the outer layer (12) of the storage tank.

4. A heatable maleic anhydride storage tank according to claim 3, characterized in that: The sealing groove (23) has a groove in the middle, the thickness of which is greater than the wall thickness of the inner layer (13) of the storage tank, and the sealing body (21) has a feed inlet (22).

5. A heatable maleic anhydride storage tank according to claim 1, characterized in that: Both ends of the upper buckle body (321) are provided with upper mounting blocks (322), both sides of the upper buckle body (321) are provided with upper slots (323), and upper mounting blocks (324) are installed on the upper mounting blocks (322).

6. A heatable maleic anhydride storage tank according to claim 5, characterized in that: Both ends of the lower buckle body (325) are provided with lower mounting blocks (326), both sides of the lower buckle body (325) are provided with lower buckles (327), and the lower mounting blocks (326) are provided with lower limit blocks (328).

7. A heatable maleic anhydride storage tank according to claim 6, characterized in that: The upper slot (323) is fitted with the lower buckle (327), the lower limit block (328) is fitted with the upper mounting block (322), and the upper limit block (324) is fitted with the lower mounting block (326).

8. A heatable maleic anhydride storage tank according to claim 2, characterized in that: The heating assembly (3) also includes a transmission mechanism (31), which includes a transmission mounting plate (311). The transmission mounting plate (311) is symmetrically mounted on the inner wall of the outer layer (12) of the storage tank. A first fixing block (313) is mounted on the upper end of the transmission mounting plate (311), and a drive wheel (314) is rotatably mounted in the middle of the first fixing block (313).

9. A heatable maleic anhydride storage tank according to claim 8, characterized in that: A drive motor (312) is installed on one side of the first fixing block (313). The output end of the drive motor (312) passes through the first fixing block (313) and is connected to the rotation shaft of the drive wheel (314). A second fixing block (318) is installed at the lower end of the transmission mounting plate (311). A driven wheel (319) is rotatably installed in the middle of the second fixing block (318). A slide rail (316) is provided between the first fixing block (313) and the second fixing block (318).

10. A heatable maleic anhydride storage tank according to claim 9, characterized in that: The slide rail (316) is mounted on the transmission mounting plate (311), and a slider (317) is slidably mounted on the slide rail (316). A transmission belt (315) is sleeved and connected to the drive wheel (314) and the driven wheel (319), and the slider (317) is connected to the transmission belt (315).

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