A new type of vacuum buffer tank

Abstract

This invention relates to the field of vacuum buffer tank technology and discloses a novel vacuum buffer tank, including a vacuum tank with an exhaust pipe connected through the inner wall of the top and an air inlet pipe connected through the inner wall of the left side. It also includes a main body mechanism installed on the inner wall of the vacuum tank. Airflow from the external distillation vessel enters the air inlet pipe under the suction of the negative pressure inside the vacuum tank. A flow splitting component separates the airflow into two branch pipes, and the two airflows collide, reducing the airflow velocity. A flow guiding component and a diffusion component allow some of the tiny droplets carried in the airflow to collide with and aggregate with the falling larger droplets, capturing the tiny droplets in the airflow. This significantly reduces the number of tiny droplets rising with the airflow, reducing the burden on the wire mesh demister, effectively preventing excessive load on the wire mesh demister and preventing flooding, which would affect the separation of tiny droplets and ensure the cleanliness of the airflow entering the external vacuum pump area.

Description

Technical Field

[0001] This invention relates to the field of vacuum buffer tank equipment technology, specifically a novel vacuum buffer tank. Background Technology

[0002] Vacuum buffer tanks are key auxiliary equipment in the field of high-tech product manufacturing. They play three main roles in vacuum systems: first, stabilizing pressure and storing energy by absorbing the pulsation and instantaneous gas impact of the vacuum pump, suppressing system pressure fluctuations and avoiding frequent start-ups and shutdowns of the vacuum pump; second, separating gas and liquid by effectively intercepting droplets and mists entrained in the process gas flow, protecting downstream equipment; and third, preventing backflow by preventing liquid backflow in the event of an unexpected system shutdown, providing a reliable safety barrier for the vacuum pump.

[0003] During gas-liquid separation inside the vacuum buffer tank, the airflow velocity decreases sharply because the tank volume is much larger than the pipe volume. After the velocity decreases, the droplets in the airflow will slowly sink due to gravity, thus separating the gas and liquid. This is combined with the wire mesh demister to separate the tiny droplets and complete the full separation of gas and liquid. However, when the airflow is recovered in the distillation kettle, the airflow will carry a large number of droplets, which may cause too many tiny droplets to impact the wire mesh demister, causing the wire mesh demister to overload, reducing the separation effect of tiny droplets, and even causing some droplets to enter the vacuum pump with the airflow. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a novel vacuum buffer tank, comprising a vacuum tank, an exhaust pipe being connected through the inner wall of the top of the vacuum tank, an air inlet pipe being connected through the inner wall of the left side of the vacuum tank, and further comprising: The main structure is installed on the inner wall of the vacuum tank, and includes a trapezoidal frame fixedly connected to the inner wall of the vacuum tank. The hedging mechanism is installed on the inner wall of the trapezoidal frame and includes several branch pipes that pass through and connect to the inner wall of the trapezoidal frame. A gas distribution mechanism is installed on the inner wall of the vacuum tank. The gas distribution mechanism includes an annular perforated plate that is fixedly connected to the inner wall of the vacuum tank. There are two branch pipes. When in use, the exhaust pipe is connected to the external vacuum pump, and the intake pipe is connected to the external distillation vessel. When the external distillation vessel needs to discharge gas, the external vacuum pump is started to draw the airflow in the vacuum vessel, so that a vacuum negative pressure environment is formed inside the vacuum vessel. The airflow in the external distillation vessel will enter the intake pipe under the suction of the negative pressure inside the vacuum vessel.

[0005] Preferably, the main structure also includes: Separation assembly, which is fixedly installed on the inner wall of the vacuum tank; The air splitter assembly is fixedly installed on the right side of the intake pipe.

[0006] Preferably, the hedging mechanism also includes: A flow guiding component is installed on the inner wall of the trapezoidal frame; A diffusion assembly is installed on the inner wall of the trapezoidal frame.

[0007] Preferably, the air distribution mechanism further includes: The splash-proof component is fixedly installed on the inner wall of the vacuum tank.

[0008] Preferably, the separation component includes a wire mesh demister fixedly connected to the inner wall of the vacuum tank, and a drain pipe is connected through the bottom inner wall of the vacuum tank. The airflow entering the intake pipe will eventually enter the vacuum tank. Under the influence of the negative pressure suction force in the exhaust pipe, the airflow will pass through the wire mesh demister and enter the exhaust pipe.

[0009] Preferably, the diversion assembly includes a connecting pipe that runs through the right side of the intake pipe, a conical block is fixedly connected to the inner wall of the connecting pipe, and the inner wall of the connecting pipe is connected to the outer wall of several branch pipes near the intake pipe. The airflow entering the intake pipe will enter the connecting pipe. Guided by the left conical surface of the cone block, the airflow will be split. The split airflow will enter the two branch pipes. Finally, the airflow will be ejected from the right outlet of the two branch pipes, and the two airflows will collide.

[0010] Preferably, the flow guiding component includes a flow channel formed in the inner wall of the trapezoidal frame, and a plurality of flow guiding plates are fixedly connected to the inner wall of the flow channel; There are two guide vanes, which counteract each other's kinetic energy, causing the airflow velocity to decrease. After the airflow counteracts each other, it will spread rapidly in the flow channel. When it is blocked by the trapezoidal frame, it will concentrate and spread downward. During the downward diffusion of the airflow, it will come into contact with the guide vanes.

[0011] Preferably, the diffusion component includes a plurality of diffusion grooves formed in the inner wall of the trapezoidal frame, and a plurality of gathering blocks are fixedly connected to the inner wall of the flow groove; There are two diffuser slots and two gathering blocks. Guided by the guide plate, some airflow flows towards the diffuser slots. After the airflow enters the diffuser slots, the airflow flow area will increase, which will slow down the downward diffusion speed of the airflow. As the airflow continues to flow downward, the airflow will be guided by the inclined surface of the gathering blocks, causing the airflow to concentrate and converge between the two gathering blocks and flow downward in a concentrated manner. As the airflow enters the diffuser, its velocity is reduced. The airflow that flows between the two guide plates but does not enter the diffuser also has a reduced velocity. As the overall velocity decreases, the entrainment force of the airflow on large droplets weakens. Due to its own weight, the large droplets fall rapidly and pass through the airflow concentrated between the two aggregation blocks. After the airflow is aggregated, it increases the concentration of small droplets in the local area, thereby increasing the probability of collision between large and small droplets. Some of the small droplets carried in the airflow will come into contact with and collide with the falling large droplets during this process, and aggregate to capture the small droplets in the airflow. By applying the above structure, the airflow velocity decreases after the airflow is counteracted, and large and small droplets agglomerate into larger droplets. This allows more droplets entrained in the airflow to settle due to gravity, thereby significantly reducing the number of tiny droplets rising with the airflow. This reduces the burden on the wire mesh demister, effectively preventing flooding caused by excessive load on the wire mesh demister, which would affect the separation of tiny droplets and ensure the cleanliness of the airflow entering the external vacuum pump area.

[0012] Preferably, the splash-proof assembly includes a conical ring fixedly connected to the inner wall of the vacuum tank, and a drain pipe is connected through the bottom inner wall of the conical ring; The negative pressure suction force generated by the external vacuum pump is continuously transmitted to the vacuum tank through the exhaust pipe, thereby attracting the airflow in the flow channel to flow downwards and finally into the vacuum tank. Then, the airflow is subjected to the negative pressure suction force of the external vacuum pump and flows upwards through the wire mesh demister. The wire mesh demister removes the tiny droplets remaining in the airflow. Finally, the airflow enters the exhaust pipe and is discharged into the area of ​​the external vacuum pump. As the airflow diffuses from the flow channel into the vacuum tank, it flows upward under the influence of the negative pressure suction of the external vacuum pump. During the flow, it comes into contact with the conical ring and is diverted by the bottom slope of the conical ring, causing the airflow to concentrate and flow towards the inner wall of the vacuum tank. Subsequently, after the gas passes the conical ring, since the exhaust pipe is located in the center of the vacuum tank, the airflow will converge again towards the center of the vacuum tank. During the upward flow, it will come into contact with the annular perforated plate.

[0013] The present invention has the following beneficial effects: (1) In this invention, the airflow in the external distillation vessel will enter the inlet pipe under the suction effect of the negative pressure inside the vacuum tank. The airflow is separated into two branch pipes by the flow splitting component. Finally, the two airflows will collide, causing the airflow velocity to decrease. After the airflows collide, they will quickly diffuse in the flow channel. Through the flow guiding component and the diffusion component, some of the tiny droplets carried in the airflow will come into contact with and collide with the falling large droplets, and aggregate to capture the tiny droplets in the airflow. This will greatly reduce the tiny droplets that rise with the airflow, reduce the burden on the wire mesh demister, effectively prevent the wire mesh demister from being overloaded and causing flooding, which would affect the separation of tiny droplets and ensure the cleanliness of the airflow entering the external vacuum pump area.

[0014] (2) In this invention, the airflow is discharged from the flow channel and diffuses into the vacuum tank. When it flows upward under the influence of the negative pressure suction force of the external vacuum pump, it will come into contact with the conical ring during the flow process. Through the annular perforated plate and the anti-splash component, the airflow is redistributed evenly. The airflow will continue to flow upward through the annular perforated plate and come into contact with the wire mesh demister, so that the airflow in each area of ​​the wire mesh demister tends to be uniform, effectively preventing uneven distribution of rising airflow, excessively high local air velocity in the wire mesh demister, and liquid accumulation in local areas of the wire mesh demister.

[0015] (3) In this invention, when the droplets intercepted in the wire mesh demister agglomerate into large droplets and sink downwards, they will first fall onto the top of the annular perforated plate. Through the conical surface of the annular perforated plate, they will converge towards the center of the annular perforated plate. During the convergence process, they will fall onto the top of the conical ring through the holes of the annular perforated plate. The droplets will converge along the conical surface of the conical ring towards the drain pipe and finally flow into the drain pipe for discharge. This effectively prevents the droplets condensed in the wire mesh demister from hitting the trapezoidal frame when they fall, causing some droplets to be affected by the impact and break into small droplets again, which will be carried away by the rising airflow, thus avoiding secondary entrainment.

[0016] (4) In this invention, the airflow enters the connecting pipe and is split into two streams by the conical block. After entering the branch pipes respectively, since the inner diameter of the branch pipe is the same as that of the inlet pipe, the initial flow velocity of the airflow will decrease after the airflow is split, thereby reducing the initial impact force when the two airflows collide. This effectively prevents the airflow velocity from being too fast, which would cause the two airflows to collide and generate excessive impact force, which would cause the droplets in the airflow to be affected by the impact and break into smaller droplets, affecting the capture of small droplets by large droplets. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the vacuum tank portion of the present invention; Figure 4 This is a top sectional view of the vacuum tank portion of the present invention; Figure 5 This is a top sectional view of the vacuum tank portion of the present invention. Figure 6 This is a cross-sectional view of the trapezoidal frame of the present invention; Figure 7 This is a cross-sectional plan view of the trapezoidal frame of the present invention; Figure 8 For the present invention Figure 7 Enlarged diagram of point A in the middle.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 11. Separation component; 12. Diversion component; 13. Vacuum tank; 14. Exhaust pipe; 15. Inlet pipe; 101. Trapezoidal frame; 111. Wire mesh demister; 112. Drain pipe; 121. Connecting pipe; 122. Conical block; 2. Counter-current mechanism; 21. Flow guide component; 22. Diffusion component; 201. Branch pipe; 211. Flow channel; 212. Guide plate; 221. Diffusion channel; 222. Gathering block; 3. Gas distribution mechanism; 31. Splash prevention component; 301. Annular perforated plate; 311. Conical ring; 312. Drain pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, please refer to Figures 1-6 This invention relates to a novel vacuum buffer tank, comprising a vacuum tank 13, an exhaust pipe 14 being connected through the top inner wall of the vacuum tank 13, and an air inlet pipe 15 being connected through the left inner wall of the vacuum tank 13, and further comprising: The main body 1 is installed on the inner wall of the vacuum tank 13. The main body 1 includes a trapezoidal frame 101 that is fixedly connected to the inner wall of the vacuum tank 13. The anti-flush mechanism 2 is installed on the inner wall of the trapezoidal frame 101. The anti-flush mechanism 2 includes a plurality of branch pipes 201 that are connected through the inner wall of the trapezoidal frame 101. Gas distribution mechanism 3 is installed on the inner wall of vacuum tank 13. Gas distribution mechanism 3 includes an annular perforated plate 301 fixedly connected to the inner wall of vacuum tank 13. There are two branch pipes 201. When in use, the exhaust pipe 14 is connected to the external vacuum pump, and the inlet pipe 15 is connected to the external distillation vessel. When the external distillation vessel needs to discharge gas, the external vacuum pump is started to draw the airflow in the vacuum tank 13, so that a vacuum negative pressure environment is formed inside the vacuum tank 13. The airflow in the external distillation vessel will enter the inlet pipe 15 under the suction of the negative pressure inside the vacuum tank 13.

[0022] Main body 1 also includes: Separation component 11 is fixedly disposed on the inner wall of vacuum tank 13; The flow divider assembly 12 is fixedly installed on the right side of the intake pipe 15.

[0023] Hedging institution 2 also includes: The flow guiding component 21 is installed on the inner wall of the trapezoidal frame 101; A diffusion component 22 is installed on the inner wall of the trapezoidal frame 101.

[0024] The air distribution mechanism 3 also includes: Splash-proof component 31 is fixedly installed on the inner wall of vacuum tank 13.

[0025] Example 2, please refer to Figures 3-8 The present invention is a novel vacuum buffer tank. Based on the first embodiment, the separation component 11 includes a wire mesh demister 111 fixedly connected to the inner wall of the vacuum tank 13, and a drain pipe 112 is connected through the bottom inner wall of the vacuum tank 13. The airflow entering the intake pipe 15 will eventually enter the vacuum tank 13. Under the influence of the negative pressure suction force in the exhaust pipe 14, the airflow will pass through the wire mesh demister 111 and enter the exhaust pipe 14.

[0026] The diversion assembly 12 includes a connecting pipe 121 that runs through the right side of the intake pipe 15. A tapered block 122 is fixedly connected to the inner wall of the connecting pipe 121. The inner wall of the connecting pipe 121 is connected to the outer wall of several branch pipes 201 on the side near the intake pipe 15. The airflow entering the intake pipe 15 will enter the connecting pipe 121. The airflow will be diverted by the left conical surface of the cone block 122. The diverted airflow will enter the two branch pipes 201. Finally, the airflow will be ejected from the right outlet of the two branch pipes 201, and the two airflows will collide.

[0027] The flow guiding component 21 includes a flow channel 211 formed in the inner wall of the trapezoidal frame 101, and a plurality of flow guiding plates 212 are fixedly connected to the inner wall of the flow channel 211. Two guide plates 212 are provided. The opposing airflow cancels out the kinetic energy of the two airflows, causing the airflow velocity to decrease. After the airflows oppose each other, they will spread rapidly in the flow channel 211. When blocked by the trapezoidal frame 101, they will concentrate and spread downward. During the downward diffusion of the airflow, it will come into contact with the guide plate 212.

[0028] The diffusion component 22 includes a plurality of diffusion grooves 221 formed on the inner wall of the trapezoidal frame 101, and a plurality of gathering blocks 222 are fixedly connected to the inner wall of the flow groove 211. There are two diffuser slots 221 and two gathering blocks 222. Guided by the guide plate 212, some airflow flows towards the diffuser slots 221. After the airflow enters the diffuser slots 221, the flow area of ​​the airflow will increase, which will slow down the downward diffusion speed of the airflow. As the airflow continues to flow downward, the airflow will be guided by the inclined surface of the gathering blocks 222, so that the airflow will be concentrated and converged between the two gathering blocks 222 and flow downward in a concentrated manner. The velocity of the airflow entering the diffuser 221 is reduced. The velocity of the airflow flowing between the two guide plates 212 that does not enter the diffuser 221 is also reduced. After the overall velocity decreases, the entrainment force of the airflow on the large droplets weakens. The large droplets, affected by their own weight, will fall rapidly and pass through the airflow concentrated between the two aggregation blocks 222. After the airflow is aggregated, it will increase the concentration of small droplets in the local area, thereby increasing the probability of collision between large droplets and small droplets. Some of the small droplets carried in the airflow will come into contact with and collide with the falling large droplets in this process, and aggregate to capture the small droplets in the airflow. By applying the above structure, the airflow velocity decreases after the airflow is counteracted, and large and small droplets agglomerate into larger droplets. This allows more droplets entrained in the airflow to settle due to gravity, thereby significantly reducing the number of tiny droplets rising with the airflow. This reduces the burden on the wire mesh demister 111, effectively preventing the wire mesh demister 111 from becoming overloaded and flooding, which would affect the separation of tiny droplets and ensure the cleanliness of the airflow entering the external vacuum pump area.

[0029] The splash-proof assembly 31 includes a conical ring 311 fixedly connected to the inner wall of the vacuum tank 13, and a drain pipe 312 is connected through the bottom inner wall of the conical ring 311. The negative pressure suction force generated by the external vacuum pump is continuously transmitted to the vacuum tank 13 through the exhaust pipe 14, thereby attracting the airflow in the flow channel 211 to flow downward and finally into the vacuum tank 13. Then, the airflow is subjected to the negative pressure suction force of the external vacuum pump and flows upward through the wire mesh demister 111. The wire mesh demister 111 removes the tiny droplets remaining in the airflow. Finally, the airflow enters the exhaust pipe 14 and is discharged into the area of ​​the external vacuum pump. As the airflow is discharged from the flow channel 211 and diffuses into the vacuum tank 13, it flows upward under the influence of the negative pressure suction force of the external vacuum pump. During the flow, it will come into contact with the conical ring 311. The airflow is diverted by the bottom slope of the conical ring 311, causing the airflow to concentrate and flow towards the inner wall of the vacuum tank 13. Subsequently, after the gas passes over the conical ring 311, since the exhaust pipe 14 is located at the center of the vacuum tank 13, the airflow will converge again towards the center of the vacuum tank 13. During the upward flow, it will come into contact with the annular porous plate 301.

[0030] The number of the above structures is not limited. Those skilled in the art can freely set them according to actual needs, as long as the above structures are installed at the connection positions of the corresponding structures.

[0031] All of the above components have an anti-corrosion coating on their outer surface to ensure their service life.

[0032] A specific application of this embodiment is as follows: In use, the exhaust pipe 14 is connected to an external vacuum pump, and the inlet pipe 15 is connected to an external distillation vessel. When the external distillation vessel needs to discharge gas, the external vacuum pump is started to draw the airflow in the vacuum tank 13, so that a vacuum negative pressure environment is formed inside the vacuum tank 13. The airflow in the external distillation vessel will enter the inlet pipe 15 under the suction of the negative pressure inside the vacuum tank 13. The airflow will flow into the connecting pipe 121 through the inlet pipe 15 and come into contact with the conical block 122. Through the guide of the left conical surface of the conical block 122, the airflow will be split. The split airflow will enter the two branch pipes 201. Finally, the airflow will be ejected from the right outlet of the two branch pipes 201, and the two airflows will collide. The opposing forces cause the two airflows to cancel each other out, reducing their velocity. After the opposing forces, the airflows will spread rapidly within the flow channel 211. When blocked by the trapezoidal frame 101, they will concentrate and spread downwards. During the downward spread, the airflow will come into contact with the guide plate 212. Guided by the guide plate 212, some of the airflow will flow towards the diffusion channel 221. After the airflow enters the diffusion channel 221, the flow area of ​​the airflow will increase, which will slow down the downward spread of the airflow. As the airflow continues to flow downwards, it will be guided by the inclined surface of the gathering block 222, causing the airflow to concentrate and converge between the two gathering blocks 222 and flow downwards. The velocity of the airflow entering the diffuser 221 is reduced. The velocity of the airflow flowing between the two guide plates 212 that does not enter the diffuser 221 is also reduced. After the overall velocity decreases, the entrainment force of the airflow on the large droplets weakens. The large droplets, affected by their own weight, will fall rapidly and pass through the airflow concentrated between the two aggregation blocks 222. After the airflow is aggregated, it will increase the concentration of small droplets in the local area, thereby increasing the probability of collision between large droplets and small droplets. Some of the small droplets carried in the airflow will come into contact with and collide with the falling large droplets in this process, and aggregate to capture the small droplets in the airflow. By applying the above structure, the airflow velocity decreases after the airflow is counteracted, and large droplets and small droplets agglomerate into larger droplets. This allows more droplets entrained in the airflow to settle due to gravity, thereby significantly reducing the number of tiny droplets rising with the airflow, reducing the burden on the wire mesh demister 111, effectively preventing the wire mesh demister 111 from being overloaded and flooding, which would affect the separation of tiny droplets and ensure the cleanliness of the airflow entering the external vacuum pump area. The negative pressure suction force generated by the external vacuum pump is continuously transmitted to the vacuum tank 13 through the exhaust pipe 14, thereby attracting the airflow in the flow channel 211 to flow downward and finally into the vacuum tank 13. Then, the airflow is subjected to the negative pressure suction force of the external vacuum pump and flows upward through the wire mesh demister 111. The wire mesh demister 111 removes the tiny droplets remaining in the airflow. Finally, the airflow enters the exhaust pipe 14 and is discharged into the area of ​​the external vacuum pump. As the airflow is discharged from the flow channel 211 and diffuses into the vacuum tank 13, it flows upward under the influence of the negative pressure suction force of the external vacuum pump. During the flow, it will come into contact with the conical ring 311. The airflow is diverted by the bottom slope of the conical ring 311, causing the airflow to concentrate and flow towards the inner wall of the vacuum tank 13. Then, after the gas passes through the conical ring 311, since the exhaust pipe 14 is located at the center of the vacuum tank 13, the airflow will converge towards the center of the vacuum tank 13 again. During the upward flow, it will come into contact with the annular perforated plate 301. The perforations of the annular perforated plate 301 create throttling resistance, forcing the airflow to redistribute at the bottom of the annular perforated plate 301. This causes the airflow that originally converged towards the center to be redistributed evenly. The airflow continues to flow upward through the annular perforated plate 301 and comes into contact with the wire mesh demister 111, making the airflow in each area of ​​the wire mesh demister 111 tend to be uniform. This effectively prevents uneven distribution of rising airflow, excessively high local air velocity in the wire mesh demister 111, and the accumulation of liquid in local areas of the wire mesh demister 111. When the droplets intercepted in the wire mesh demister 111 agglomerate into large droplets and settle downwards, they will first fall onto the top of the annular perforated plate 301. Through the conical surface of the annular perforated plate 301, they will converge towards the center of the annular perforated plate 301. During the convergence process, they will fall through the holes of the annular perforated plate 301 onto the top of the conical ring 311. The droplets will converge along the conical surface of the conical ring 311 towards the drain pipe 312 and finally flow into the drain pipe 312 for discharge. This effectively prevents the droplets condensed in the wire mesh demister 111 from hitting the trapezoidal frame 101 when they fall, causing some droplets to be broken into smaller droplets again due to the impact. These smaller droplets will then be carried away again by the rising airflow, avoiding secondary entrainment. The airflow enters the connecting pipe 121 and is split into two streams by the conical block 122. After entering the branch pipe 201, since the inner diameter of the branch pipe 201 is the same as that of the inlet pipe 15, the initial flow velocity of the airflow will decrease after being split, thereby reducing the initial impact force when the two airflows collide. This effectively prevents the airflow from being too fast and causing the two airflows to collide, which would generate an excessively strong impact force. This would cause the droplets in the airflow to be affected by the impact and break into smaller droplets, affecting the capture of smaller droplets by larger droplets. When there is too much liquid in the vacuum tank 13, the liquid in the vacuum tank 13 can be drained by opening the drain pipe 112.

[0033] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A novel vacuum buffer tank, comprising a vacuum tank (13), wherein an exhaust pipe (14) is connected through the top inner wall of the vacuum tank (13), and an air inlet pipe (15) is connected through the left inner wall of the vacuum tank (13), characterized in that, Also includes: The main body (1) is installed on the inner wall of the vacuum tank (13). The main body (1) includes a trapezoidal frame (101) fixedly connected to the inner wall of the vacuum tank (13). The hedging mechanism (2) is installed on the inner wall of the trapezoidal frame (101). The hedging mechanism (2) includes a plurality of branch pipes (201) that are connected through the inner wall of the trapezoidal frame (101). Gas distribution mechanism (3), the gas distribution mechanism (3) is installed on the inner wall of vacuum tank (13), the gas distribution mechanism (3) includes an annular perforated plate (301) fixedly connected to the inner wall of vacuum tank (13). When in use, the exhaust pipe (14) is connected to an external vacuum pump, and the air inlet pipe (15) is connected to an external distillation vessel. When the external distillation vessel needs to discharge gas, the external vacuum pump is started to draw the airflow in the vacuum tank (13) so that a vacuum negative pressure environment is formed inside the vacuum tank (13). The airflow in the external distillation vessel will enter the air inlet pipe (15) under the suction of the negative pressure inside the vacuum tank (13).

2. The novel vacuum buffer tank according to claim 1, characterized in that: The main body (1) also includes: Separation assembly (11), which is fixedly disposed on the inner wall of vacuum tank (13); The diverter assembly (12) is fixedly disposed on the right side of the intake pipe (15).

3. A novel vacuum buffer tank according to claim 2, characterized in that: The hedging mechanism (2) further includes: A flow guiding component (21) is installed on the inner wall of the trapezoidal frame (101); A diffusion component (22) is installed on the inner wall of the trapezoidal frame (101).

4. A novel vacuum buffer tank according to claim 3, characterized in that: The air distribution mechanism (3) also includes: Splash-proof assembly (31) is fixedly installed on the inner wall of the vacuum tank (13).

5. A novel vacuum buffer tank according to claim 2, characterized in that: The separation component (11) includes a wire mesh demister (111) fixedly connected to the inner wall of the vacuum tank (13), and a drain pipe (112) is connected through the bottom inner wall of the vacuum tank (13). The airflow entering the intake pipe (15) will eventually enter the vacuum tank (13). Affected by the negative pressure suction force in the exhaust pipe (14), the airflow will pass through the wire mesh demister (111) and enter the exhaust pipe (14).

6. A novel vacuum buffer tank according to claim 5, characterized in that: The diversion assembly (12) includes a connecting pipe (121) that runs through the right side of the intake pipe (15). A conical block (122) is fixedly connected to the inner wall of the connecting pipe (121). The inner wall of the connecting pipe (121) is connected through to the outer wall of several branch pipes (201) near the side of the intake pipe (15). The airflow entering the intake pipe (15) will enter the connecting pipe (121), and the airflow will be split by the cone block (122). The split airflow will enter multiple branch pipes (201), and finally the multiple airflows will collide at the right outlet position of multiple branch pipes (201).

7. A novel vacuum buffer tank according to claim 3, characterized in that: The flow guiding component (21) includes a flow channel (211) formed on the inner wall of the trapezoidal frame (101), and a plurality of flow guiding plates (212) are fixedly connected to the inner wall of the flow channel (211). Among them, after multiple airflows collide, the kinetic energy of the airflow will be reduced, and then the collided airflow will spread rapidly inside the flow channel (211).

8. A novel vacuum buffer tank according to claim 7, characterized in that: The diffusion component (22) includes a plurality of diffusion grooves (221) formed on the inner wall of the trapezoidal frame (101), and a plurality of gathering blocks (222) are fixedly connected to the inner wall of the flow groove (211). The diffused airflow is guided by the guide plate (212) and enters the diffuser groove (221) for secondary diffusion. Then the airflow continues to flow downward and is guided by the gathering block (222) to gather again.

9. A novel vacuum buffer tank according to claim 4, characterized in that: The splash-proof assembly (31) includes a conical ring (311) fixedly connected to the inner wall of the vacuum tank (13), and a drain pipe (312) is connected through the bottom inner wall of the conical ring (311).

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