Novel vacuum buffer tank for reduced pressure distillation device

Abstract

The utility model provides a novel vacuum buffer tank for a reduced pressure distillation device, which relates to the field of distillation devices and comprises a tank body, a pressure pipe is mounted at the upper end of the tank body and is used for being connected with an external distillation device, a fixed disc A is fixedly connected in the tank body, two exhaust ports A are formed in the fixed disc A, and the exhaust ports A are communicated with the tank body. And a fixed disc B is slidably connected into the tank body. According to the novel vacuum buffer tank for the reduced pressure distillation device, through the arranged fixing disc B, when the air pressure in the tank body is increased, a spring A can play a buffering role to prevent the tank body from being damaged due to too large pressure, through the arranged two alarm mechanisms, when the air pressure reaches a preset value, one alarm mechanism can give an alarm, and when the air pressure is too large, the alarm mechanism can give an alarm. The two alarm mechanisms can give an alarm at the same time to remind workers, and the workers are prevented from continuously climbing to the top of the buffer tank to check the pressure gauge to prevent danger caused by excessive pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation devices, in particular to a novel vacuum buffer tank for a reduced pressure distillation device. Background Art

[0002] The distillation device is a separation technology carried out under high vacuum conditions. It has the characteristics of low distillation temperature, high system vacuum, short material heating time, high degree of separation, and irreversible separation process without boiling and bubbling. The distillation device will be accompanied by a large amount of air pressure during the distillation process, and the distillation device needs to be decompressed.

[0003] A public announcement (publication) number CN213131973U discloses a vacuum buffer tank for a vacuum distillation apparatus. This technology discloses that "the vacuum buffer tank is sealed by providing a sealing cover, a sealing gasket, a fixed gasket, and a sealing strip. The connecting rod is movably connected to the first rotating rod, the first rotating rod is movably connected to the movable rod, and the movable rod is movably connected to the second rotating rod and the hook. When maintenance is required, the buckle is first rotated and the fixed rod is pushed upward to allow the buckle to exit the interior of the rectangular block. Then, the fixed rod and hook are pushed upward until the hook exits the interior of the hanging ring. The sealing cover can then be removed from the top of the vacuum buffer tank body. This structure not only provides good sealing and stable fixation, but also facilitates maintenance."

[0004] Although this design can remove the sealing cover from the top of the vacuum buffer tank body by rotating the clip to withdraw the clip from the inside of the rectangular block and pushing the fixing rod and the hook upward until the hook withdraws from the inside of the hanging ring, such a structure can not only make it well sealed and stably fixed, but also be easy to maintain. However, the vacuum buffer tank of this device needs to be connected to the vacuum distillation device through a pressure pipe, and the installer needs to constantly climb to the top of the buffer tank to check the pressure gauge to prevent danger from excessive pressure. This is not only time-consuming and labor-intensive, but also involves certain risks. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a novel vacuum buffer tank for a reduced pressure distillation device, which solves the problems raised in the background technology.

[0006] Technical Solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new vacuum buffer tank for a reduced pressure distillation device, including a tank body, a pressure pipe is installed on the upper end of the tank body, the pressure pipe is used to connect with the external distillation device, the interior of the tank body is fixedly connected to a fixed disk A, the interior of the fixed disk A is provided with two exhaust ports A, the interior of the tank body is slidably connected to a fixed disk B, the interior of the fixed disk B is provided with multiple exhaust ports B arranged in a circle, a limiting column is inserted into the interior of each exhaust port B, a spring A is fixedly connected between the fixed disk A and the fixed disk B, and the spring A is in a static state.

[0008] The bottom end of the tank body is fixedly connected to an exhaust pipe, the bottom end of the exhaust pipe is threadedly connected to a threaded barrel, the inner wall of the threaded barrel is fixedly connected to a limit block, the upper surface of the limit block is concave, and a ball is placed on the upper surface of the limit block. A through hole is provided inside the limit block, and a plurality of exhaust ports C arranged in a circle are provided on the inner bottom wall of the threaded barrel. A push rod A is fixedly connected to the inner bottom wall of the threaded barrel, and the push rod A is located directly below the ball. The bottom end of the threaded barrel is rotatably connected to an exhaust pipe, which is U-shaped, and two symmetrical alarm mechanisms are installed on the outer surface of the exhaust pipe.

[0009] Both alarm mechanisms consist of an intake pipe, a piston A, a spring B, a push rod B and an alarm bell. The intake pipe is fixedly connected to the exhaust pipe, the piston A is slidably connected to the intake pipe, the alarm bell is fixedly connected to the bottom end of the intake pipe, the push rod B is fixedly connected to the piston A, the switch of the alarm bell is located directly below the push rod B, the piston B is fixedly installed inside the exhaust pipe, a spring C is fixedly connected between the piston B and the exhaust pipe, and a threaded plug is threadedly connected to the right end of the exhaust pipe.

[0010] Furthermore, a one-way valve is installed inside the pressure tube, and the opening direction of the one-way valve is set to downward. When the pressure tube is connected to an external distillation device, the pressure inside the distillation device can push the one-way valve to open, and then transport the gas to the inside of the external distillation device through the pressure tube. When the pressure tube and the distillation device are disassembled, the one-way valve can be closed, thereby preventing safety hazards caused by gas leakage.

[0011] Furthermore, the diameter of the bottom end of each limiting column is smaller than the diameter of its upper end, and the middle end of the limiting column is rounded. When the fixed plate B moves to the bottom of the limiting column, the gas at the upper end of the tank body can enter its bottom.

[0012] Furthermore, a sealing ring A is fixedly connected to the inner wall of each exhaust port B, and each sealing ring A is in close contact with the limiting column adjacent thereto, thereby improving the sealing between the exhaust port B and the limiting column and preventing gas leakage.

[0013] Furthermore, the upper surface of each limiting column is fixedly connected to a limiting plate, and each limiting plate is in contact with the fixed plate B. By providing the limiting plate, the upper end of the limiting column can be prevented from being separated from the fixed plate B.

[0014] Furthermore, the bottom end of the exhaust pipe is cylindrical, and a threaded groove is provided on the outer surface. The threaded groove and the threaded barrel are sealed, and the upper end of the exhaust pipe is funnel-shaped, which is not only conducive to improving the sealing between the exhaust pipe and the threaded barrel, but also conducive to the gas at the upper end of the exhaust pipe entering its bottom end.

[0015] Furthermore, a sealing ring B is rotatably connected to the outer surface of the threaded barrel, and the sealing ring B is fixedly connected to the exhaust pipe, which is beneficial for the relative rotation between the threaded barrel and the exhaust pipe and ensures the sealing between the threaded barrel and the exhaust pipe.

[0016] The beneficial effects of the present invention are:

[0017] 1. The novel vacuum buffer tank for a reduced pressure distillation device has a fixed plate B. When the internal air pressure of the tank increases, the fixed plate B can descend along multiple limit columns. The spring A can act as a buffer to prevent damage to the tank body caused by excessive pressure. When the fixed plate B moves to the bottom end of the limit column, gas can enter the exhaust pipe. Through the two alarm mechanisms, when the air pressure reaches a predetermined value, one of the alarm mechanisms can sound an alarm. When the air pressure is too high, the two alarm mechanisms can sound an alarm at the same time to remind staff members, avoiding them from constantly climbing to the top of the buffer tank to check the pressure gauge to prevent danger caused by excessive pressure, thereby solving the problems raised in the background technology.

[0018] 2. The new vacuum buffer tank for the reduced pressure distillation device has a limit block and a ball. When the threaded cylinder is rotated to rise along the exhaust pipe, the exhaust pipe can drive the push rod A to rise and push the ball to separate from the limit block, thereby facilitating the gas at the bottom end of the tank to enter the exhaust pipe. In addition, the exhaust pipe can be disassembled by reverse rotation. When disassembled, the ball can contact the limit block and then block the through hole, preventing safety hazards caused by instantaneous leakage of high-pressure gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the tank structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the front view of the tank body of the present invention;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0022] Figure 4 For this utility model Figure 2A magnified schematic diagram of the structure at point B in the middle.

[0023] Among them: 1-tank body; 2-pressure pipe; 3-fixed plate A; 4-exhaust port A; 5-fixed plate B; 6-exhaust port B; 7-limiting column; 8-spring A; 9-exhaust pipe; 10-threaded cylinder; 11-limiting block; 12-ball; 13-through hole; 14-exhaust port C; 15-push rod A; 16-exhaust pipe; 17-alarm mechanism; 171-intake pipe; 172-piston A; 173-spring B; 174-push rod B; 175-alarm bell; 18-piston B; 19-spring C; 20-threaded plug; 21-sealing ring A; 22-limiting plate; 23-sealing ring B. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See Figure 1-4A new type of vacuum buffer tank for a reduced pressure distillation device includes a tank body 1, a pressure tube 2 is installed on the upper end of the tank body 1, the pressure tube 2 is used to connect with an external distillation device, a one-way valve is installed inside the pressure tube 2, and the opening direction of the one-way valve is set to downward. When the pressure tube 2 is connected to the external distillation device, the pressure inside the distillation device can push the one-way valve to open, thereby transporting the gas to the inside of the external distillation device through the pressure tube 2. When the pressure tube 2 is disassembled from the distillation device, the one-way valve can be closed, thereby preventing the gas from leaking and causing safety hazards. A fixed disk A3 is fixedly connected to the inside of the tank body 1, and two exhaust ports A4 are provided inside the fixed disk A3. A fixed disk B5 is slidably connected to the inside of the tank body 1, and the fixed disk B5 is in close contact with the inner wall of the tank body 1. A plurality of exhaust ports B arranged in a circumference are provided inside the fixed disk B5. 6. A limiting post 7 is inserted into the interior of each exhaust port B6. The diameter of the bottom end of each limiting post 7 is smaller than the diameter of its upper end. The middle end of the limiting post 7 is rounded. When the fixed disk B5 moves to the bottom of the limiting post 7, the gas at the upper end of the tank body 1 can enter its bottom. The inner wall of each exhaust port B6 is fixedly connected with a sealing ring A21. Each sealing ring A21 is in close contact with the limiting post 7 adjacent to it, thereby improving the sealing between the exhaust port B6 and the limiting post 7 and preventing gas leakage. The upper surface of each limiting post 7 is fixedly connected with a limiting disk 22. Each limiting disk 22 is in contact with the fixed disk B5. By setting the limiting disk 22, the upper end of the limiting post 7 can be prevented from being separated from the fixed disk B5. A spring A8 is fixedly connected between the fixed disk A3 and the fixed disk B5. The spring A8 is in static state, and the bottom end of the tank body 1 is conical.

[0026] The bottom end of the tank body 1 is fixedly connected with an exhaust pipe 9, and the bottom end of the exhaust pipe 9 is threadedly connected with a threaded pipe 10. The bottom end of the exhaust pipe 9 is cylindrical, and a threaded groove is provided on the outer surface. The threaded groove and the threaded pipe 10 are sealed. The upper end of the exhaust pipe 9 is funnel-shaped, which is not only conducive to improving the sealing between the exhaust pipe 9 and the threaded pipe 10, but also conducive to the gas at the upper end of the exhaust pipe 9 entering its bottom end. The inner wall of the threaded pipe 10 is fixedly connected to a limiting block 11. The upper surface of the limiting block 11 is concave, and a ball 12 is placed on the upper surface of the limiting block 11. The ball 12 is in close contact with the concave part of the limiting block 11, and the internal opening of the limiting block 11 is A through hole 13 is provided. The inner bottom wall of the threaded barrel 10 is provided with a plurality of circumferentially arranged exhaust ports C14. A push rod A15 is fixedly connected to the inner bottom wall of the threaded barrel 10. The push rod A15 is located directly below the ball 12. The bottom end of the threaded barrel 10 is rotatably connected to an exhaust pipe 16. The exhaust pipe 16 is U-shaped. A sealing ring B23 is rotatably connected to the outer surface of the threaded barrel 10. The sealing ring B23 is fixedly connected to the exhaust pipe 16, which is conducive to the relative rotation between the threaded barrel 10 and the exhaust pipe 16 and ensures the sealing between the threaded barrel 10 and the exhaust pipe 16. Two symmetrical alarm mechanisms 17 are installed on the outer surface of the exhaust pipe 16.

[0027] Both alarm mechanisms 17 are composed of an intake pipe 171, a piston A172, a spring B173, a push rod B174 and an alarm bell 175. The intake pipe 171 is fixedly connected to the exhaust pipe 16, the piston A172 is slidably connected to the intake pipe 171, the alarm bell 175 is fixedly connected to the bottom end of the intake pipe 171, the push rod B174 is fixedly connected to the piston A172, and the switch of the alarm bell 175 is located directly below the push rod B174. When the air pressure inside the intake pipe 171 exceeds a predetermined value, the piston A172 can drive the push rod B174 to descend and trigger the switch of the alarm bell 175, causing the alarm bell 175 to sound. A piston B18 is fixedly installed inside the exhaust pipe 16, and a spring C19 is fixedly connected between the piston B18 and the exhaust pipe 16. The spring B173 and the spring C19 are both in static state. The right end of the exhaust pipe 16 is threadedly connected to a threaded plug 20, and a sealing arrangement is provided between the threaded plug 20 and the exhaust pipe 16.

[0028] When in use, first rotate the threaded cylinder 10 to make the threaded cylinder 10 rise along the exhaust pipe 9. The exhaust pipe 9 can drive the push rod A15 to rise and push the ball 12 to disengage from the limit block 11, so that the gas at the upper end of the exhaust pipe 9 can enter its bottom. At this time, the tank body 1 and the exhaust pipe 16 are in a connected state. Then the pressure pipe 2 is connected to the external distillation device. The gas discharged from the distillation device should be discharged from the pressure pipe 2 into the upper end of the tank body 1. When the internal air pressure of the tank body 1 increases, it can push the fixed plate B5 to descend. At this time, the spring A8 begins to accumulate force, so that the fixed plate B5 can buffer the high-pressure gas and play a protective role. When the fixed plate B5 descends, it can descend along multiple limit columns 7. When the fixed plate B5 descends to the bottom of the limit column 7, the gas at the upper end of the tank body 1 enters the bottom end of the tank body 1 through multiple exhaust ports B6, and then enters the exhaust pipe 16. The high-pressure gas in the exhaust pipe 16 enters the air inlet pipe 171 on the left and makes the left The air pressure inside the intake pipe 171 increases. When the air pressure reaches a predetermined value, the spring B173 on the left begins to compress, and the gas pushes the piston A172 down. The piston A172 drives the push rod B174 down, and the bottom end of the push rod B174 triggers the switch of the alarm bell 175, and causes the alarm bell 175 to sound an alarm. When the air pressure is too high, the spring C19 begins to compress, the piston moves to the right, and the gas enters the alarm mechanism 17 on the right. As above, the alarm bell 175 on the right begins to sound an alarm to remind the staff to avoid people constantly climbing to the top of the buffer tank to check the pressure gauge to prevent danger from excessive pressure, thereby solving the problem raised in the background technology. The exhaust pipe 9 can be disassembled by reverse rotation. When disassembled, the ball 12 can contact the limit block 11, thereby blocking the through hole 13 to prevent safety hazards due to instantaneous leakage of high-pressure gas. The threaded plug 20 can be removed by rotation, and the gas inside the exhaust pipe 16 can be discharged.

[0029] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel vacuum buffer tank for a vacuum distillation device, comprising a tank body (1), characterized in that: The upper end of the tank body (1) is provided with a pressure pipe (2), which is used to connect to an external distillation device. A fixed disk A (3) is fixedly connected to the interior of the tank body (1), and two exhaust ports A (4) are provided inside the fixed disk A (3). A fixed disk B (5) is slidably connected to the interior of the tank body (1), and a plurality of exhaust ports B (6) arranged in a circumferential manner are provided inside the fixed disk B (5). A limiting column (7) is inserted into the interior of each exhaust port B (6). A spring A (8) is fixedly connected between the fixed disk A (3) and the fixed disk B (5), and the spring A (8) is in a static state. The bottom end of the tank body (1) is fixedly connected to an exhaust cylinder (9), the bottom end of the exhaust cylinder (9) is threadedly connected to a threaded cylinder (10), the upper surface of the limit block (11) is concave, a ball (12) is placed on the upper surface of the limit block (11), a through hole (13) is provided inside the limit block (11), a plurality of exhaust ports C (14) arranged in a circumferential pattern are provided on the inner bottom wall of the threaded cylinder (10), a push rod A (15) is fixedly connected to the inner bottom wall of the threaded cylinder (10), the push rod A (15) is located directly below the ball (12), the bottom end of the threaded cylinder (10) is rotatably connected to an exhaust pipe (16), the exhaust pipe (16) is U-shaped, and two symmetrical alarm mechanisms (17) are installed on the outer surface of the exhaust pipe (16); The two alarm mechanisms (17) are composed of an intake pipe (171), a piston A (172), a spring B (173), a push rod B (174) and an alarm bell (175). The intake pipe (171) is fixedly connected to the exhaust pipe (16). The piston A (172) is slidably connected to the intake pipe (171). The alarm bell (175) is fixedly connected to the bottom end of the intake pipe (171). The push rod B (174) is fixedly connected to the piston A (172). The switch of the alarm bell (175) is located directly below the push rod B (174). The interior of the exhaust pipe (16) is fixedly installed with a piston B (18). A spring C (19) is fixedly connected between the piston B (18) and the exhaust pipe (16). The right end of the exhaust pipe (16) is threadedly connected with a threaded plug (20).

2. The novel vacuum buffer tank for a vacuum distillation apparatus according to claim 1, characterized in that: A one-way valve is installed inside the pressure pipe (2), and the opening direction of the one-way valve is set to downward.

3. The novel vacuum buffer tank for a vacuum distillation apparatus according to claim 1, characterized in that: The diameter of the bottom end of each of the limiting columns (7) is smaller than the diameter of the upper end thereof, and the middle end of the limiting column (7) is rounded.

4. The novel vacuum buffer tank for a vacuum distillation apparatus according to claim 1, characterized in that: The inner wall of each exhaust port B (6) is fixedly connected to a sealing ring A (21), and each sealing ring A (21) is in close contact with the adjacent limiting column (7).

5. The novel vacuum buffer tank for a vacuum distillation apparatus according to claim 1, characterized in that: The upper surface of each limiting column (7) is fixedly connected to a limiting plate (22), and each limiting plate (22) is in contact with the fixed plate B (5).

6. The novel vacuum buffer tank for a vacuum distillation apparatus according to claim 1, characterized in that: The bottom end of the exhaust cylinder (9) is cylindrical, and a thread groove is provided on the outer surface. The thread groove and the thread cylinder (10) are sealed. The upper end of the exhaust cylinder (9) is funnel-shaped.

7. The novel vacuum buffer tank for a vacuum distillation apparatus according to claim 1, characterized in that: The outer surface of the threaded barrel (10) is rotatably connected to a sealing ring B (23), and the sealing ring B (23) is fixedly connected to the exhaust pipe (16).

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