Chemical distillation kettle with sealing device

Abstract

The utility model relates to the technical field of distillation equipment, in particular to a chemical distillation kettle with a sealing device, which comprises a distillation kettle with a top opening, and is characterized in that an annular first sealing groove is formed in the top of the distillation kettle; a push ring is connected into the first sealing groove in an up-down sliding mode. A sealing ring is placed on the upper end face of the push ring. A compression spring is correspondingly arranged in each placing cavity; a sealing cover is further arranged on the upper end face of the distillation kettle, and a second sealing groove is formed in the lower end face of the sealing cover. After the push ring is unlocked, the elastic force of the multiple compression springs drives the push ring to drive the sealing ring to move upwards, so that the sealing ring is ejected out of the first sealing groove, and the effect that the sealing ring is conveniently taken out is achieved. By arranging the pressing ring and other components, the pressing ring is pressed downwards to enable the sealing ring to deform, then the gap between the sealing ring and the first sealing groove or the gap between the sealing ring and the second sealing groove is filled, and the sealing effect is better.

Description

Technical Field

[0001] This application relates to the technical field of distillation equipment, and in particular to a chemical distillation vessel with a sealing device. Background Technology

[0002] Chemical distillation kettles are indispensable equipment in chemical production, and their sealing performance directly affects production efficiency and product quality. However, during chemical distillation, due to the diversity of material properties and the complexity of operating conditions, the sealing devices of distillation kettles often face challenges from harsh environments such as high temperatures, high pressures, and corrosive media. Traditional sealing devices, such as packing seals and mechanical seals, can meet sealing requirements to a certain extent, but their sealing performance often declines due to wear, aging, or media corrosion during long-term operation, even leading to leakage accidents and seriously threatening production safety.

[0003] A search revealed Chinese Patent Publication No. CN218321307U, which discloses a novel sealing device for a still distillation, comprising a still body and a lid. The lid has a groove on its edge, and a first sealing ring matching the groove is arranged within the groove. The first sealing ring has a through hole, and its bottom is wavy. This invention features a through hole and a wavy bottom on the first sealing ring, enhancing its deformation capacity. During the sealing process between the lid and the still body, the deformation capacity of the first sealing ring is enhanced, allowing it to effectively fill the gap between the still and the still body, preventing the leakage of alcohol vapor. The first sealing ring possesses a certain degree of flexibility, yet also exhibits a certain degree of rigidity when compressed, thus ensuring the airtightness of the still.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: the technology achieves sealing compensation by compressing the sealing ring to induce deformation, but when the sealing ring needs to be removed and replaced, the deformed sealing ring is not easily removed. Utility Model Content

[0005] To make the sealing ring easier to remove, this application provides a chemical distillation vessel with a sealing device.

[0006] This application provides a chemical distillation vessel with a sealing device, employing the following technical solution: a distillation vessel with a top opening, characterized in that: a first annular sealing groove is provided at the top of the distillation vessel; a push ring is slidably connected vertically within the first sealing groove; a sealing ring is placed on the upper end face of the push ring; the sealing ring is adapted to the first sealing groove; multiple placement cavities are provided downwards at the bottom of the first sealing groove; a compression spring is correspondingly provided in each placement cavity; the top of each compression spring is fixedly connected to the lower end face of the push ring; a sealing cover is also provided on the upper end face of the distillation vessel, and a second sealing groove is provided on the lower end face of the sealing cover; the first...

[0007] The second sealing groove is adapted to the first sealing groove; when the sealing cover is tightly closed over the distillation vessel, the sealing ring is located within the sealed space formed by the first and second sealing grooves. When the sealing ring needs to be replaced, the sealing cover is opened, and the force of multiple compression springs drives the push ring to move the sealing ring upward, thereby pushing the sealing ring out of the first sealing groove.

[0008] Optionally, the bottom of the first sealing groove is provided with a first threaded hole, and a first threaded rod is threadedly connected to the first threaded hole; the lower end face of the push ring is provided with a first threaded groove; the upper part of the first threaded rod is threadedly connected to the first threaded groove. The threaded connection makes the locking more secure.

[0009] Optionally, the compensating sealing mechanism includes a pressure ring disposed within the second sealing groove and multiple connecting rods disposed on the upper end face of the pressure ring; the pressure ring is adapted to the sealing ring, and when the sealing cover is tightly closed on the distillation vessel, the lower end face of the pressure ring contacts the upper end face of the sealing ring; the sealing cover is provided with multiple through holes adapted to the connecting rods; each connecting rod is slidably connected to the corresponding through hole. The sliding of the connecting rods makes the up-and-down movement smoother.

[0010] Optionally, the pressing drive mechanism includes a drive motor disposed on the upper end face of the sealing cover and a second threaded rod driven by the drive motor.

[0011] Optionally, the output shaft of the drive motor is coaxially provided with a first bevel gear; the second threaded rod is coaxially provided with a second bevel gear, which meshes with the first bevel gear; the lower end face of the second threaded rod is rotatably connected to the upper end face of the sealing cover; the second threaded rod is threadedly connected with a first nut; the peripheral wall of the first nut is fixedly connected to multiple connecting rods.

[0012] Optionally, a plurality of second nuts are fixedly provided on the peripheral wall of the sealing cap, and a plurality of third nuts are correspondingly fixedly provided on the peripheral wall of the distillation vessel; each second nut and its corresponding third nut are coaxial when the cap is closed. The nuts and bolts make the seal more stable.

[0013] Optionally, the distillation vessel is provided with a feed inlet on its peripheral wall, and a feed flange is provided on the feed inlet, which can be connected to a feed valve. The feed flange facilitates feeding.

[0014] Optionally, the top of the sealing cover is provided with a discharge port, and a discharge flange is provided on the discharge port. The discharge flange can be connected to the condensation device through a corresponding pipe.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. This utility model, by setting up components such as a push ring, allows the sealing ring to move upward by the elastic force of multiple compression springs after the push ring is unlocked, thereby pushing the sealing ring out of the first sealing groove, achieving the effect of easy removal of the sealing ring.

[0017] 2. By setting up components such as a pressure ring, the sealing ring is deformed by pressing down on the pressure ring, thereby filling the gap between the sealing ring and the first or second sealing groove, resulting in a better sealing effect. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure in an embodiment of this application;

[0019] Figure 2 is a schematic diagram of the structure of the top of the distillation vessel in an embodiment of this application;

[0020] Figure 3 is a schematic diagram of the structure of the bottom of the sealing cap in an embodiment of this application;

[0021] Figure 4 is a structural schematic diagram of the pressure ring connection relationship in an embodiment of this application;

[0022] Figure 5 is a schematic diagram of the transverse cross-sectional structure in an embodiment of this application.

[0023] Reference numerals: 1. Distillation vessel; 2. First sealing groove; 3. Push ring; 4. Sealing ring; 5. Placement cavity; 6. Compression spring; 7. Sealing cover; 8. Second sealing groove; 9. First threaded hole; 10. First threaded rod; 11. First threaded groove; 12. Pressure ring; 13. Connecting rod; 14. Drive motor; 15. Second threaded rod; 16. First bevel gear; 17. Second bevel gear; 18. First nut; 19. Second nut; 20. Third nut; 21. Feed flange; 22. Discharge flange. Detailed Implementation

[0024] The present application will be further described in detail below with reference to Figures 1-5.

[0025] This application discloses a sealing device for a chemical distillation kettle 1. As shown in Figure 1, the device includes a distillation kettle 1 with a top opening. A first annular sealing groove 2 is provided at the top of the distillation kettle 1. A push ring 3 is slidably connected within the first sealing groove 2. A sealing ring 4 is placed on the upper surface of the push ring 3. The sealing ring 4 is adapted to the first sealing groove 2. Multiple placement cavities 5 are provided downwards at the bottom of the first sealing groove 2. A compression spring 6 is correspondingly provided in each placement cavity 5. The top of each compression spring 6 is fixedly connected to the lower surface of the push ring 3. A sealing cover 7 is also provided on the upper surface of the distillation kettle 1. A second sealing groove 8 is provided on the lower surface of the sealing cover 7. The second sealing groove 8 is adapted to the first sealing groove 2. When the sealing cover 7 tightly seals the distillation kettle 1, the sealing ring 4 is located within the sealed space formed by the first sealing groove 2 and the second sealing groove 8.

[0026] In this embodiment, when the sealing ring 4 needs to be replaced, the sealing cover 7 is opened, and the push ring 3 is driven by the elastic force of multiple compression springs 6 to move the sealing ring 4 upward, thereby pushing the sealing ring 4 out of the first sealing groove 2.

[0027] To make the ejection of the sealing ring 4 controllable, in this invention, the bottom of the first sealing groove 2 is provided with a first threaded hole 9, and the first threaded hole 9 is threadedly connected to a first threaded rod 10; the lower end face of the push ring 3 is provided with

[0028] It has a first threaded groove 11; the upper part of the first threaded rod 10 is threadedly connected to the first threaded groove 11;

[0029] In this embodiment, when it is necessary to remove the sealing ring 4, the sealing cover 7 is opened first; by rotating the first threaded rod 10, the first threaded rod 10 is separated from the first threaded groove 11, thereby unlocking the first threaded rod 10 from the first threaded groove 11; the compression spring 6 drives the push ring 3 to move upward, pushing the sealing ring 4 upward, making it easier to remove the sealing ring 4.

[0030] To ensure good sealing performance of the sealing ring 4, this invention also includes a compensating sealing mechanism. The compensating sealing mechanism includes a pressure ring 12 disposed within the second sealing groove 8 and multiple connecting rods 13 disposed on the upper end face of the pressure ring 12. The pressure ring 12 is adapted to the sealing ring 4; when the sealing cover 7 tightly seals the distillation vessel 1, the lower end face of the pressure ring 12 contacts the upper end face of the sealing ring 4. The sealing cover 7 has multiple through holes adapted to the connecting rods 13; each connecting rod 13 is slidably connected to its corresponding through hole.

[0031] In this embodiment, the sealing ring 4 can be made of flexible materials such as rubber. When the connecting rod 13 moves downward, the sealing ring 4 is deformed by the pressure ring 12, which fills the gap between the sealing ring 4 and the first sealing groove 2 or the second sealing groove 8, resulting in a better sealing effect.

[0032] In this utility model, a downward driving mechanism is also provided; the downward driving mechanism includes a drive motor 14 disposed on the upper end face of the sealing cover 7 and a second threaded rod 15 driven by the drive motor 14; a first bevel gear 16 is coaxially disposed on the output shaft of the drive motor 14; a second bevel gear 17 is coaxially disposed on the second threaded rod 15, and the second bevel gear 17 meshes with the first bevel gear 16; the lower end face of the second threaded rod 15 is rotatably connected to the upper end face of the sealing cover 7; a first nut 18 is threadedly connected to the second threaded rod 15; the peripheral wall of the first nut 18 is fixedly connected to a plurality of connecting rods 13;

[0033] In this embodiment, when the sealing cover 7 is closed, the first bevel gear 16 is driven to rotate by the drive motor 14, and the first bevel gear 16 drives the second bevel gear 17 to rotate, thereby causing the second threaded rod 15 to rotate; the rotating second threaded rod 15 drives the first nut 18 to move downward, thereby causing the multiple connecting rods 13 to move downward.

[0034] To make the connection between the sealing cap 7 and the distillation vessel 1 tighter, in this invention, a plurality of second nuts 19 are fixedly provided on the periphery of the sealing cap 7, and a plurality of third nuts 20 are fixedly provided on the periphery of the distillation vessel 1; each second nut 19 and the corresponding third nut 20 are coaxial when the cap is closed.

[0035] In this embodiment, when the sealing cap 7 is closed with the distillation vessel 1, the operator locks the sealing cap 7 by rotating multiple bolts into the corresponding second nut 19 and third nut 20.

[0036] In this invention, a feed inlet is provided on the periphery of the distillation vessel 1, and a feed flange 21 is provided on the feed inlet, which can be connected to a feed valve.

[0037] In this utility model, the top of the sealing cover 7 is provided with a discharge port, and a discharge flange 22 is provided on the discharge port. The discharge flange 22 can be connected to the condensation device through a corresponding pipe.

[0038] The implementation principle of the sealing device for a chemical distillation kettle 1 in this application embodiment is as follows:

[0039] Example 1:

[0040] When distillation is required, the sealing ring 4 is placed into the first sealing groove 2, and the sealing cap 7 is closed. The first bevel gear 16 is driven to rotate by the drive motor 14, which in turn drives the second bevel gear 17 to rotate, thereby causing the second threaded rod 15 to rotate. The rotating second threaded rod 15 drives the first nut 18 to move downward, thereby causing the multiple connecting rods 13 to move downward.

[0041] The downward-moving connecting rod 13 presses down through the pressure ring 12, causing the sealing ring 4 to deform, thereby filling the gap between the sealing ring 4 and the first sealing groove 2 or the second sealing groove 8, resulting in a better sealing effect.

[0042] When the pressing is complete, the upper part of the first threaded rod 10 is rotated into the first threaded groove 11 by rotating the first threaded rod 10, thereby locking the push ring 3.

[0043] Example 2:

[0044] When the sealing ring 4 needs to be replaced, first open the sealing cover 7; by rotating the first threaded rod 10, the first threaded rod 10 is separated from the first threaded groove 11, thereby unlocking the first threaded rod 10 from the first threaded groove 11; the compression spring 6 drives the push ring 3 to move upward, pushing the sealing ring 4 upward, making it easier to remove the sealing ring 4.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A chemical distillation vessel with a sealing device, comprising a distillation vessel with a top opening, characterized in that: The top of the distillation vessel is provided with an annular first sealing groove; a push ring is slidably connected inside the first sealing groove; a sealing ring is placed on the upper end face of the push ring; the sealing ring is adapted to the first sealing groove; multiple placement cavities are provided downward at the bottom of the first sealing groove; a compression spring is correspondingly provided in each placement cavity; the top of each compression spring is fixedly connected to the lower end face of the push ring; a sealing cover is also provided on the upper end face of the distillation vessel, and a second sealing groove is provided on the lower end face of the sealing cover; the second sealing groove is adapted to the first sealing groove; when the sealing cover is tightly closed on the distillation vessel, the sealing ring is located in the sealed space formed by the first sealing groove and the second sealing groove.

2. A chemical distillation vessel with a sealing device according to claim 1, characterized in that: The bottom of the first sealing groove is provided with a first threaded hole, and a first threaded rod is threadedly connected to the first threaded hole; the lower end face of the push ring is provided with a first threaded groove; the upper part of the first threaded rod is threadedly connected to the first threaded groove.

3. A chemical distillation vessel with a sealing device according to claim 1, characterized in that: A compensating sealing mechanism is also provided; the compensating sealing mechanism includes a pressure ring disposed in the second sealing groove and a plurality of connecting rods disposed on the upper end face of the pressure ring; the pressure ring is adapted to the sealing ring, and when the sealing cover is tightly closed on the distillation vessel, the lower end face of the pressure ring contacts the upper end face of the sealing ring; the sealing cover is provided with a plurality of through holes adapted to the connecting rods; each connecting rod is slidably connected to the corresponding through hole.

4. A chemical distillation vessel with a sealing device according to claim 1, characterized in that: It is also provided with a downward driving mechanism; the downward driving mechanism includes a drive motor disposed on the upper end face of the sealing cover and a second threaded rod driven by the drive motor.

5. A chemical distillation vessel with a sealing device according to claim 4, characterized in that: The output shaft of the drive motor is coaxially provided with a first bevel gear; the second threaded rod is coaxially provided with a second bevel gear, which meshes with the first bevel gear; the lower end face of the second threaded rod is rotatably connected to the upper end face of the sealing cover; the second threaded rod is threadedly connected with a first nut; the peripheral wall of the first nut is fixedly connected to multiple connecting rods.

6. A chemical distillation vessel with a sealing device according to claim 1, characterized in that: The sealing cap is fixedly provided with a plurality of second nuts on its peripheral wall, and the distillation vessel is provided with a plurality of third nuts on its peripheral wall accordingly; each second nut and its corresponding third nut are coaxial when the cap is closed.

7. A chemical distillation vessel with a sealing device according to claim 1, characterized in that: The distillation vessel has a feed inlet on its peripheral wall, and a feed flange is provided on the feed inlet. The feed flange can be connected to a feed valve. Door connection.

8. A chemical distillation vessel with a sealing device according to claim 1, characterized in that: The top of the sealing cover is provided with a discharge port, and a discharge flange is provided on the discharge port. The discharge flange can be connected to the condensation device through a corresponding pipe.

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