Explosion-proof distillation kettle

Abstract

The utility model discloses an anti -explosion distillation kettle relates to distillation kettle technical field, including distillation kettle body, the heating pipe is installed in the distillation kettle body, the top fixed mounting of distillation kettle body has two automatic pressure -relief valve, be provided with two round bars in the distillation kettle body. The anti -explosion distillation kettle of the present application through the cooperation of switching mechanism and limiting mechanism, only needs simple " pull - rotate - reset " knob operation, can drive swing pole rotation and switch and the cooperation state of different round pole, realizes the function interchange of two automatic pressure -relief valve. This design can effectively avoid the problem that single automatic pressure -relief valve is used as explosion -proof valve for a long time but has not ever pressure -relief, cannot verify normality, make the original explosion -proof valve switch to normal pressure -relief mode to inspect performance, and the original normal pressure -relief valve is upgraded to explosion -proof mode simultaneously and guarantees distillation safety, and the operation is convenient and switches accurately, and the anti -explosion reliability of distillation kettle and equipment operation and maintenance convenience have been improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of distillation kettle technology, and in particular to an explosion-proof distillation kettle. Background Technology

[0002] Explosion-proof distillation kettles are core equipment in the chemical and pharmaceutical industries for distilling flammable and explosive materials. Their explosion-proof performance directly determines production safety. During distillation, materials are easily heated and generate volatile gases. If the pressure inside the kettle rises abnormally, a pressure relief valve must be used to release the pressure in a timely manner to prevent overpressure and explosion. Therefore, explosion-proof distillation kettles are usually equipped with pressure relief devices to balance the pressure inside the kettle. The stable operation and functional reliability of the pressure relief valve are crucial to ensuring the safe and continuous operation of the distillation process. Especially for long-term, high-frequency use scenarios, the performance verification and functional adaptability of the pressure relief valve are even more important.

[0003] Current mainstream explosion-proof distillation kettles have significant limitations in the configuration and maintenance of pressure relief valves: although most equipment is equipped with multiple pressure relief valves, their functions are fixed (e.g., one for normal pressure relief and one for explosion-proof emergency). During long-term use, the explosion-proof pressure relief valves are rarely triggered to relieve pressure. Once they fail due to impurity accumulation, spring fatigue, or other reasons, it is difficult to verify whether they are in normal working condition outside of the maintenance cycle. This poses a safety hazard of "seemingly on standby, but actually malfunctioning." To address this issue, we propose an explosion-proof distillation kettle. Utility Model Content

[0004] The purpose of this application is to provide an explosion-proof distillation vessel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: an explosion-proof distillation kettle, comprising a distillation kettle body, a heating tube installed inside the distillation kettle body, two automatic pressure relief valves fixedly installed on the top of the distillation kettle body, two round rods provided inside the distillation kettle body, baffles fixedly installed at the bottom ends of the two round rods, and the top ends of the two round rods respectively fixedly installed on the valve discs of the two automatic pressure relief valves; The automatic pressure relief valve is provided with a swing rod on one side, the bottom of the swing rod is in contact with the top of one of the baffles, and the swing rod has two arc-shaped holes, one of which is located in one of the arc-shaped holes; The top of the distillation vessel body is equipped with a lower rectangular column via a switching mechanism, and the swing rod is slidably sleeved inside the lower rectangular column; A limit mechanism is installed on the switching mechanism; A counterweight is fixed to the bottom of the swing arm by bolts.

[0006] Preferably, the switching mechanism includes a U-shaped plate fixedly installed on the top wall of the distillation vessel body, the top of the U-shaped plate having a circular hole, a cylinder being rotatably installed in the circular hole, and a disc being fixedly installed at both ends of the cylinder, with the top of the lower rectangular column fixedly installed on the bottom of the lower disc.

[0007] Preferably, the switching mechanism further includes a mounting block fixedly installed on the top of the distillation vessel body. The top of the mounting block and the inner top wall of the distillation vessel body are provided with threaded holes. A stud is threadedly installed in the threaded holes. A rectangular groove is provided at the bottom end of the stud. An upper rectangular column is slidably installed in the rectangular groove. The bottom end of the upper rectangular column extends outside the rectangular groove and is fixedly installed on the top of the upper disc.

[0008] Preferably, the limiting mechanism includes two slots on the top of the mounting block, a sliding groove on the top of the stud, a rectangular slider slidably mounted in the sliding groove, a knob fixedly mounted on the top of the rectangular slider, a spring sleeved on the rectangular slider, the two ends of the spring being fixedly mounted on the sides of the knob and the stud that are close to each other, a locking rod fixedly mounted on the bottom of the knob, and two slots on the top of the mounting block, with the locking rod extending into one of the slots.

[0009] Preferably, the angle formed by the central axis of the two slots and the stud is equal to the angle formed by the central axis of the two round rods and the stud.

[0010] Preferably, a mounting plate is fixedly installed at the bottom of the lower rectangular column, and the top of the mounting plate contacts the bottom of the swing rod.

[0011] Preferably, the stud is equidistant from the two round rods.

[0012] Preferably, the swing rod is spaced apart from the bottom of the lower disc, and a rectangular hole is provided at the top of the swing rod, with the lower rectangular column slidably installed inside the rectangular hole.

[0013] In summary, the technical effects and advantages of this utility model are as follows: The explosion-proof distillation vessel of this application, through the coordinated operation of the switching mechanism and the limiting mechanism, allows the swing arm to rotate and switch its engagement state with different round rods with a simple "pull-rotate-reset" knob operation, thus realizing the interchangeability of the functions of the two automatic pressure relief valves. This design effectively avoids the problem of a single automatic pressure relief valve being used as an explosion-proof valve for a long time without ever releasing pressure and making it impossible to verify its normal operation. It allows the original explosion-proof valve to be switched to normal pressure relief mode to test its performance, while the original normal pressure relief valve is simultaneously upgraded to explosion-proof mode to ensure distillation safety. The operation is convenient and the switching is precise, greatly improving the explosion-proof reliability of the distillation vessel and the convenience of equipment operation and maintenance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A perspective view of an explosion-proof distillation vessel; Figure 2 A first-person perspective sectional view of the distillation vessel body; Figure 3 A second-view perspective perspective view of the distillation vessel body cut open; Figure 4 A first-person perspective perspective view showing the connection between two automatic pressure relief valves, limit mechanisms, and switching mechanisms; Figure 5 A second-view perspective perspective view showing the connection between two automatic pressure relief valves, limit mechanisms, and switching mechanisms; Figure 6 A 3D view showing the connection between the spring, knob, lever, rectangular slider, and stud.

[0016] In the diagram: 1. Distillation vessel body; 2. Heating tube; 3. Pressure relief pipe; 4. Automatic pressure relief valve; 5. Round rod; 6. Baffle plate; 7. Mounting plate; 8. Mounting block; 9. Slot; 10. Exhaust pipe; 11. Stud; 12. U-shaped plate; 13. Disc; 14. Lower rectangular column; 15. Rectangular hole; 16. Counterweight; 17. Swing rod; 18. Arc-shaped hole; 19. Bolt; 20. Spring; 21. Knob; 22. Locking rod; 23. Rectangular slider. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 6 The embodiments provided by this utility model are as follows: An explosion-proof distillation vessel includes a distillation vessel body 1, a heating tube 2 installed inside the distillation vessel body 1, two automatic pressure relief valves 4 fixedly installed on the top of the distillation vessel body 1, each of the two automatic pressure relief valves 4 is equipped with an exhaust pipe 10, and the same pressure relief pipe 3 is fixedly installed at the ends of the two exhaust pipes 10 that are close to each other. Two round rods 5 are provided inside the distillation vessel body 1, and baffles 6 are fixedly installed at the bottom ends of the two round rods 5. The top ends of the two round rods 5 are respectively fixedly installed on the valve discs of the two automatic pressure relief valves 4. The automatic pressure relief valves 4 are prior art, and can refer to the micro-opening automatic pressure relief valve disclosed in CN222687399U, which includes a valve body, a valve disc and a spring. An automatic pressure relief valve 4 is provided with a swing rod 17 on one side. The bottom of the swing rod 17 contacts the top of one of the baffles 6. Two arc-shaped holes 18 are opened on the swing rod 17, and one of the round rods 5 is located in one of the arc-shaped holes 18. The top of the distillation vessel body 1 is equipped with a lower rectangular column 14 via a switching mechanism, and the swing rod 17 is slidably sleeved inside the lower rectangular column 14. A limit mechanism is installed on the switching mechanism; A counterweight 16 is fixedly installed at the bottom of the swing arm 17 by bolts 19.

[0019] like Figure 4 and Figure 5 As shown, the switching mechanism includes a U-shaped plate 12 fixedly installed on the top wall of the distillation vessel body 1. A circular hole is provided at the top of the U-shaped plate 12, and a cylinder is rotatably installed inside the hole. Disks 13 are fixedly installed at both ends of the cylinder. The top of the lower rectangular column 14 is fixedly installed on the bottom of the lower disk 13. The two disks 13 limit the lower rectangular column 14, allowing it to rotate only.

[0020] The switching mechanism also includes a mounting block 8 fixedly installed on the top of the distillation vessel body 1. Threaded holes are formed on the top of the mounting block 8 and the inner top wall of the distillation vessel body 1. A stud 11 is threaded into the threaded hole, and a rectangular groove is formed at the bottom end of the stud 11. An upper rectangular post is slidably installed within the rectangular groove, and the bottom end of the upper rectangular post extends outside the rectangular groove and is fixedly installed on the top of the upper disc 13. The advantage of this arrangement is that when the stud 11 moves downwards spirally, the force generated by the rotation of the stud 11 can be transmitted to the upper rectangular post. The force generated by the downward movement of the stud 11 will cause the upper rectangular post to enter the rectangular groove, thus avoiding obstruction.

[0021] like Figure 5 and Figure 6As shown, the limiting mechanism includes two slots 9 on the top of the mounting block 8. A groove is provided at the top of the stud 11, within which a rectangular slider 23 is slidably mounted. A knob 21 is fixedly mounted at the top of the rectangular slider 23. A spring 20 is sleeved on the rectangular slider 23, with its two ends fixedly mounted on the sides of the knob 21 and stud 11, respectively, where they are close to each other. A locking rod 22 is fixedly mounted at the bottom of the knob 21. Two slots 9 are provided at the top of the mounting block 8, and the locking rod 22 extends into one of the slots 9. Pulling the knob 21 upwards moves the rectangular slider 23 and locking rod 22 upwards, stretching the spring 20 and dislodging the locking rod 22 from one of the slots 9. Rotating the knob 21 then rotates the rectangular slider 23 and stud 11.

[0022] During long-term use, since the explosion-proof automatic pressure relief valve 4 has never released pressure, to ensure that the explosion-proof automatic pressure relief valve 4 is functioning properly, before distillation, the knob 21 can be pulled upwards to move the rectangular slider 23 and the locking rod 22 upwards, stretching the spring 20 and causing the locking rod 22 to move out of one of the locking slots 9. At this time, rotating the knob 21 will cause the rectangular slider 23 and the stud 11 to rotate, and the stud 11 will move downwards in a spiral motion, thereby causing the two discs 13 to rotate. The rotation of the two discs 13 will cause the lower rectangular column 14 to rotate, thereby causing the swing rod 17 to rotate. The rotation of the swing rod 17 will cause one of the circular rods to rotate. 5 separates from the arc-shaped hole 18. When the other arc-shaped hole 18 is locked with the other round rod 5, the other slot 9 corresponds to the position of the locking rod 22. Under the action of the spring 20, the locking rod 22 enters the other slot 9, completing the fixation of the swing rod 17. This allows the pressure relief threshold of the previously explosion-proof automatic pressure relief valve 4 to be lowered, allowing it to be used for normal pressure relief. At the same time, it increases the pressure relief threshold of the previously pressure relief automatic pressure relief valve 4, allowing it to be used for explosion-proof applications. This allows the two automatic pressure relief valves 4 to switch back and forth between different functions, avoiding the long-term use of the same explosion-proof pressure relief valve.

[0023] like Figure 5 As shown, the stud 11 is equidistant from the two round rods 5, and the angle formed by the two slots 9 and the central axis of the stud 11 is equal to the angle formed by the two round rods 5 and the central axis of the stud 11. The advantage of this design is that when the other arc-shaped hole 18 is engaged with the other round rod 5, the other slot 9 corresponds to the position of the locking rod 22. Under the force of the spring 20, the locking rod 22 enters the other slot 9, thus fixing the position of the swing rod 17.

[0024] like Figure 5 As shown, a mounting plate 7 is fixedly installed at the bottom of the lower rectangular column 14, and the top of the mounting plate 7 contacts the bottom of the swing rod 17.

[0025] like Figure 5As shown, there is a distance between the swing rod 17 and the bottom of the lower disc 13. The advantage of this design is that the swing rod 17 has room to move upward. A rectangular hole 15 is provided at the top of the swing rod 17, and the lower rectangular post 14 is slidably installed in the rectangular hole 15. The rectangular hole 15 can limit the swing rod 17, making it only able to slide upward.

[0026] Working principle: When distillation is carried out in the body of the distillation vessel 1, the pressure relief threshold of the two automatic pressure relief valves 4 is the same. Since the baffle 6 at the bottom of the valve disc of one of the automatic pressure relief valves 4 is in contact with the swing rod 17, when the automatic pressure relief valve 4 is depressurized, the valve disc moves upward, which drives the round rod 5 and the baffle 6 to move upward, and then causes the swing rod 17 and the counterweight 16 to move upward, thereby increasing its pressure relief threshold for explosion-proof use. The pressure relief threshold of the other automatic pressure relief valve 4 remains unchanged and is used for normal pressure relief. During long-term use, since the explosion-proof automatic pressure relief valve 4 has never released pressure, to ensure that the explosion-proof automatic pressure relief valve 4 is functioning properly, before distillation, the knob 21 can be pulled upwards to move the rectangular slider 23 and the locking rod 22 upwards, stretching the spring 20 and causing the locking rod 22 to move out of one of the locking slots 9. At this time, rotating the knob 21 will cause the rectangular slider 23 and the stud 11 to rotate, and the stud 11 will move downwards in a spiral motion, thereby causing the two discs 13 to rotate. The rotation of the two discs 13 will cause the lower rectangular column 14 to rotate, thereby causing the swing rod 17 to rotate. The rotation of the swing rod 17 will cause one of the circular rods to rotate. 5 separates from the arc-shaped hole 18. When the other arc-shaped hole 18 is locked with the other round rod 5, the other slot 9 corresponds to the position of the locking rod 22. Under the action of the spring 20, the locking rod 22 enters the other slot 9, completing the fixation of the swing rod 17. This allows the pressure relief threshold of the previously explosion-proof automatic pressure relief valve 4 to be lowered, allowing it to be used for normal pressure relief. At the same time, it increases the pressure relief threshold of the previously pressure relief automatic pressure relief valve 4, allowing it to be used for explosion-proof applications. This allows the two automatic pressure relief valves 4 to switch back and forth between different functions, avoiding the long-term use of the same explosion-proof pressure relief valve.

[0027] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An explosion-proof distillation vessel, comprising a distillation vessel body (1), wherein a heating tube (2) is installed inside the distillation vessel body (1), characterized in that: Two automatic pressure relief valves (4) are fixedly installed on the top of the distillation vessel body (1). Two round rods (5) are provided inside the distillation vessel body (1). Baffles (6) are fixedly installed at the bottom of the two round rods (5). The tops of the two round rods (5) are respectively fixedly installed on the valve discs of the two automatic pressure relief valves (4). The automatic pressure relief valve (4) is provided with a swing rod (17) on one side. The bottom of the swing rod (17) contacts the top of one of the baffles (6). Two arc-shaped holes (18) are opened on the swing rod (17), and one of the round rods (5) is located in one of the arc-shaped holes (18). The top of the distillation vessel body (1) is equipped with a lower rectangular column (14) through a switching mechanism, and the swing rod (17) is slidably sleeved in the lower rectangular column (14); A limit mechanism is installed on the switching mechanism; The bottom of the swing arm (17) is fixedly mounted with a counterweight (16) by bolts (19).

2. The explosion-proof distillation vessel according to claim 1, characterized in that: The switching mechanism includes a U-shaped plate (12) fixedly installed on the inner top wall of the distillation vessel body (1). A circular hole is opened on the top of the U-shaped plate (12), and a cylinder is rotatably installed in the circular hole. A disc (13) is fixedly installed at both ends of the cylinder. The top of the lower rectangular column (14) is fixedly installed on the bottom of the lower disc (13).

3. The explosion-proof distillation vessel according to claim 2, characterized in that: The switching mechanism also includes a mounting block (8) fixedly installed on the top of the distillation vessel body (1). The top of the mounting block (8) and the inner top wall of the distillation vessel body (1) are provided with threaded holes. A stud (11) is threadedly installed in the threaded hole. A rectangular groove is provided at the bottom end of the stud (11). An upper rectangular column is slidably installed in the rectangular groove. The bottom end of the upper rectangular column extends to the outside of the rectangular groove and is fixedly installed on the top of the upper disc (13).

4. The explosion-proof distillation vessel according to claim 3, characterized in that: The limiting mechanism includes two slots (9) on the top of the mounting block (8). The top of the stud (11) is provided with a sliding groove. A rectangular slider (23) is slidably installed in the sliding groove. A knob (21) is fixedly installed on the top of the rectangular slider (23). A spring (20) is sleeved on the rectangular slider (23). The two ends of the spring (20) are respectively fixedly installed on the sides of the knob (21) and the stud (11) that are close to each other. A locking rod (22) is fixedly installed at the bottom of the knob (21). The top of the mounting block (8) has two slots (9). The locking rod (22) extends into one of the slots (9).

5. The explosion-proof distillation vessel according to claim 4, characterized in that: The angle formed by the central axis of the two slots (9) and the stud (11) is equal to the angle formed by the central axis of the two round rods (5) and the stud (11).

6. The explosion-proof distillation vessel according to claim 1, characterized in that: The bottom of the lower rectangular column (14) is fixedly installed with a mounting plate (7), and the top of the mounting plate (7) is in contact with the bottom of the swing rod (17).

7. The explosion-proof distillation vessel according to claim 3, characterized in that: The stud (11) is equidistant from the two round rods (5).

8. The explosion-proof distillation vessel according to claim 1, characterized in that: The swing rod (17) is spaced apart from the bottom of the lower disc (13), and a rectangular hole (15) is provided at the top of the swing rod (17). The lower rectangular column (14) is slidably installed in the rectangular hole (15).

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