A low pressure drop fractionating column

Abstract

The application relates to the technical field of fractionating column equipment, and discloses a low-pressure drop fractionating column, which comprises a fractionating column, a supporting plate fixedly connected to the bottom of the fractionating column, an exhaust cylinder communicated with the top of the fractionating column, a feeding pipe communicated with one side of the outer wall of the fractionating column, a fixed plate fixedly connected to the outer wall of the top of the fractionating column, and an air pump fixedly connected to the bottom of the fixed plate; the mixture and high-pressure gas are filled into the interior of the fractionating column through the feeding pipe; the heater is turned on to be heated; the generated heat is transferred to the heating shell; the heat energy of the heating shell heats the falling mixture to realize gas-liquid separation; when the high-pressure gas flow moves upwards, the generated air pressure makes the sliding cylinder vertically move upwards along the inner wall of the fixed shell; at this time, the high-pressure gas flow enters the interior of the fixed shell; through the arrangement of the air holes, the gas flow enters the interior of the sliding cylinder through the air holes; then the gas flow contacts the liquid at the top of the fixed shell through the air holes, so that the working efficiency of fractionation is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fractionating column equipment, in particular to a low pressure drop fractionating column. BACKGROUND

[0002] The low pressure drop fractionating column is a fractionating column designed to reduce the pressure loss between gas flow and liquid flow during the fractionation process. The main purpose of this design is to improve the operating efficiency of the fractionating column, reduce energy consumption, and enhance the economic and sustainable nature of the fractionation process.

[0003] The existing low pressure drop fractionating column may contain solid impurities or viscous substances in some materials during operation. These substances may accumulate on the tray, packing or gas-liquid contact area, causing local blockage or poor flow. Blockage can cause poor flow of fluid in the column, affecting the separation effect, and in severe cases, it can cause partial tray or packing failure, and even cause the equipment to shut down. SUMMARY

[0004] The purpose of the present application is to provide a low pressure drop fractionating column to solve the problems raised in the background.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application is a low pressure drop fractionating column, which comprises a fractionating column, a support plate fixedly connected to the bottom of the fractionating column, an exhaust cylinder communicated with the top of the fractionating column, a feed pipe communicated with one side of the outer wall of the fractionating column, a fixed plate fixedly connected to the top end of the outer wall of the fractionating column, a gas pump fixedly connected to the bottom of the fixed plate, a return pipe communicated with the output end of the gas pump, one end of the return pipe communicated with one side of the top end of the fractionating column, the other end of the return pipe communicated with one side of the bottom end of the fractionating column, a low pressure stabilizing mechanism, the low pressure stabilizing mechanism comprising a fixed table fixedly connected to the inner wall of the fractionating column, a heating shell fixedly connected to the top of the fixed table, a heater fixedly connected to the inner wall of the heating shell, a liquid discharge pipe communicated with the center of the top of the fixed table, one end of the liquid discharge pipe penetrating through the fractionating column and extending to the outside of the fractionating column, and a flow splitting assembly provided on the inner wall of the fractionating column.

[0007] Further, the flow splitting assembly comprises a fixed shell fixedly connected to the inner wall of the fractionating column near the fixed table, two fixed shells are provided, an annular containing shell fixedly connected to the top of the fixed shell, a sliding cylinder slidingly connected to the top of the annular containing shell, a one-way valve communicated with the bottom of the sliding cylinder, a plurality of air holes formed in the outer wall of the sliding cylinder, a connecting plate fixedly connected to the top of the sliding cylinder, a spring fixedly connected to the bottom of the connecting plate, and the bottom of the spring fixedly connected to the top of the fixed shell.

[0008] Further, the outer wall of the sliding cylinder is provided with a stirring assembly, the stirring assembly comprises a fixed ring fixedly connected to the outer wall of the sliding cylinder, the fixed ring is arranged in the inner part of the fixed shell, the outer wall of the fixed ring is rotatably connected with a rotating plate on one side, the top end of the rotating plate is rotatably connected with a sliding block, four sliding grooves are arranged on the inner wall of the fixed ring.

[0009] Further, the top end of the sliding block is slidably connected to the inner wall of the sliding groove, the outer wall of one end of the sliding block is slidably connected with an arc-shaped groove plate, the top of the arc-shaped groove plate is rotatably connected to the inner wall of the top of the fixed shell, the inner wall of the arc-shaped groove plate is fixedly connected with a rotating ring shell, the bottom of the rotating ring shell is rotatably connected to the inner wall of the bottom of the fixed shell, and the inner wall of the bottom of the rotating ring shell is fixedly connected with four reset springs.

[0010] Further, the top of the reset spring is fixedly connected with a lifting ring, the outer wall of the lifting ring is fixedly connected with four limiting blocks, four limiting grooves are arranged on the inner cavity of the rotating ring shell, the outer wall of the limiting block is slidably connected to the inner wall of the limiting groove, the top of the lifting ring is fixedly connected with four bent rods, and the outer wall of the middle end of the bent rod is fixedly connected with a stirring plate.

[0011] Further, the top of the bent rod is provided with a filtering assembly, the filtering assembly comprises a circular ring plate fixedly connected to the top of the bent rod, an annular groove is arranged on the bottom of the circular ring plate, the top of the circular ring plate is fixedly connected with a conical filter plate, four sliding frames are slidably connected to the inner wall of the annular groove, and the bottom of the sliding frame is fixedly connected to the top of the connecting plate.

[0012] Further, the bottom center of the conical filter plate is fixedly connected with a pressing rod, the bottom of the pressing rod is in contact with a plugging block, the bottom of the plugging block is fixedly connected with a first pressing spring, the bottom of the first pressing spring is fixedly connected with a conical tube, the outer wall of the conical tube is fixedly connected to the inner cavity of the fixed shell, and the bottom end of the outer wall of the conical tube is communicated with a liquid seal valve on one side.

[0013] Further, the top of the conical filter plate is provided with a striking assembly, the striking assembly comprises a vertical rod rotatably connected to the top of the conical filter plate, a limiting frame is fixedly connected to the inner wall of the fixed shell near the fractionating tower, the limiting frame is provided with two, the outer wall of one end of the vertical rod is slidably connected to the inner wall of the limiting frame, the top end of the outer wall of the vertical rod is rotatably connected with four rotating rods, and the end of the rotating rod away from the vertical rod is rotatably connected with a sliding plate.

[0014] Further, the inner wall of the sliding plate is slidably connected to the outer wall of the limiting frame, the bottom of the sliding plate is fixedly connected with a vertical plate, the bottom end of the vertical plate is slidably connected with a striking frame, one end of the striking frame is fixedly connected with a second pressing spring, and one end of the second pressing spring is fixedly connected to the side wall of the vertical plate.

[0015] The present application has the following advantages:

[0016] (1) The mixture and high-pressure gas are filled into the inside of the fractionating tower through the inlet pipe, the heater is opened, the heater is heated, heat is transferred to the heating shell, the heat energy of the heating shell heats the falling mixture, gas-liquid separation is carried out, at the same time, the gas pump is started, the inside of the reflux pipe generates negative pressure, the liquid on the top of the fixed platform is absorbed, the liquid enters the top of the fractionating tower through the reflux pipe, reflux separation is carried out, the liquid stays on the top of the fixed shell, when the high-pressure gas flow moves upward, the gas pressure makes the sliding cylinder move vertically along the inner wall of the fixed shell, at this time, the high-pressure gas flow enters the inside of the fixed shell, the gas flow enters the inside of the sliding cylinder through the gas hole, then the gas flow contacts the liquid on the top of the fixed shell through the gas hole, the working efficiency of the fractionation is improved, when the sliding cylinder moves upward, the sliding cylinder drives the fixed ring to move upward, the fixed ring drives the rotating plate to move upward, the rotating plate drives the sliding block to move along the outer wall of the sliding groove, the sliding block makes the arc-shaped groove plate rotate along the center of the inner wall of the fixed shell in the moving process, the arc-shaped groove plate drives the rotating ring shell to rotate, the rotating ring shell drives the limiting block to rotate, the limiting block drives the lifting ring to rotate, the lifting ring drives the bent rod to rotate, the bent rod drives the stirring plate to rotate, the stirring plate breaks the gas bubbles in the gas-liquid mixture in the rotating process, prevents large bubbles from being generated in the gas rising process, and improves the gas-liquid fractionation effect.

[0017] (2) When the bent rod rotates, the bent rod drives the circular ring plate to rotate, the circular ring plate drives the conical filter plate to rotate, when the liquid falls, the liquid contacts the top of the conical filter plate, the impurity particles in the liquid are blocked by the conical filter plate, at this time, the conical filter plate can shake off the impurity particles stuck in the filter holes of the conical filter plate in the rotating process, improves the gas-liquid fractionation effect, at the same time, the sliding cylinder drives the connecting plate to move upward, the connecting plate drives the sliding frame to move upward, the sliding frame moves upward, the circular ring plate moves upward, is limited by the annular groove, and the circular ring plate can be prevented from being stuck in the upward process, and the circular ring plate drives the conical filter plate to move vertically upward, at this time, the conical filter plate can make the impurity particles enter the inside of the annular filter shell in the process of shaking off the impurity particles, further improves the gas-liquid fractionation effect, when the liquid and the impurity particles enter the inside of the annular filter shell, the liquid enters the top of the fixed shell through the filter hole of the annular filter shell.

[0018] (3) In the present invention, when the conical filter plate moves upward, the conical filter plate drives the vertical rod to move upward, and the vertical rod drives the rotating bar to move upward. The rotating bar drives the sliding plate to slide along the outer wall of the limiting frame, and the sliding plate drives the vertical plate to move, and the vertical plate drives the impact frame to move. During the movement of the impact frame, the impact frame will collide with the side wall of the upward-moving conical filter plate, causing the conical filter plate to vibrate slightly. In combination with the inclined surface setting of the conical filter plate, the impurity particles can enter the interior of the annular filter shell, further improving the separation effect of the impurity particles. When the compressed gas is not enough to make the sliding cylinder move upward, the elastic deformation of the spring causes the connecting plate to drive the sliding cylinder to descend vertically. At the same time, the conical filter plate moves downward, and the conical filter plate drives the extrusion rod to descend. During the descending process of the extrusion rod, the top of the blocking block is pressed down, so that the blocking block no longer blocks the conical mouth of the conical tube, thereby allowing the liquid on the top of the fixed shell to enter the interior of the conical tube. The liquid falls downward through the conical tube and then stays on the top of the fixed platform. When the distillation work is completed, the connecting port of the discharge pipe is opened to allow the liquid to be discharged to the outside.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall side structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed shell of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the conical filter plate of the present invention when viewed from above;

[0025] Figure 5 This is a schematic diagram of the explosion structure of the arc trough plate of the present invention;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the rotating ring shell of the present invention;

[0027] Figure 7 For the present invention Figure 2 A magnified view of middle A;

[0028] Figure 8 Enlarged view of B in the present invention Figure 3

[0029] Figure 9 Enlarged view of C in the present invention Figure 4

[0030] Figure 10 Enlarged view of D in the present invention Figure 5

[0031] In the drawings, the components represented by each reference numeral are listed as follows:

[0032] In the drawings, the components represented by each reference numeral are listed as follows:1, fractionating column; 2, support plate; 3, exhaust cylinder; 4, feed pipe; 5, low-pressure stabilizing mechanism; 6, fixed plate; 7, air pump; 8, return pipe; 51, fixed table; 52, heating shell; 53, heater; 54, liquid discharge pipe; 55, shunt assembly; 56, stirring assembly; 57, filtering assembly; 58, impact assembly; 551, fixed shell; 552, annular filter shell; 553, sliding cylinder; 554, one-way valve; 555, air hole; 556, connecting plate; 557, spring; 561, fixed ring; 562, rotating plate; 563, sliding block; 564, sliding slot; 565, arc-shaped slot plate; 566, rotating ring shell; 567, return spring; 568, lifting ring; 569, limiting block; 5610, limiting slot; 5611, bent rod; 5612, stirring plate; 571, circular ring plate; 572, annular slot; 573, conical filter plate; 574, sliding frame; 575, extrusion rod; 576, conical tube; 577, liquid seal valve; 578, first extrusion spring; 579, blocking block; 581, vertical rod; 582, limiting frame; 583, rotating bar; 584, sliding plate; 585, vertical plate; 586, impact frame; 587, second extrusion spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] Please refer to Figure 1 - Figure 10 ​​As shown, the present application is a low pressure drop fractionating column, comprising a fractionating column 1, the bottom of the fractionating column 1 is fixedly connected with a support plate 2, the top of the fractionating column 1 is communicated with an exhaust cylinder 3, the outer wall of the fractionating column 1 is communicated with a feeding pipe 4 on one side, the top end of the outer wall of the fractionating column 1 is fixedly connected with a fixed plate 6, the bottom of the fixed plate 6 is fixedly connected with an air pump 7, the output end of the air pump 7 is communicated with a reflux pipe 8, one end of the reflux pipe 8 is communicated with the top end of the fractionating column 1 on one side, the other end of the reflux pipe 8 is communicated with the bottom end of the fractionating column 1 on one side, further comprising;

[0035] A low pressure stabilizing mechanism 5, the low pressure stabilizing mechanism 5 comprises a fixed platform 51 fixedly connected to the inner wall of the fractionating column 1, a heating shell 52 fixedly connected to the top of the fixed platform 51, a heater 53 fixedly connected to the inner wall bottom of the heating shell 52, a liquid discharge pipe 54 communicated with the top center of the fixed platform 51, one end of the liquid discharge pipe 54 penetrates through the fractionating column 1 and extends to the outside of the fractionating column 1, the mixture and the high-pressure gas are poured into the inside of the fractionating column 1 through the feeding pipe 4, the heater 53 is turned on, the heater 53 is heated, the heat generated by the heater 53 is transferred to the heating shell 52, the heat energy of the heating shell 52 heats the falling mixture, so that the mixture is gas-liquid separated, at the same time, the air pump 7 is started, the air pump 7 generates negative pressure in the inside of the reflux pipe 8, the negative pressure absorbs the liquid staying on the top of the fixed platform 51, so that the liquid enters the top end of the fractionating column 1 through the reflux pipe 8, thereby performing reflux separation work, so that the liquid stays on the top of the fixed shell 551, and the inner wall of the fractionating column 1 is provided with a flow distribution assembly 55.

[0036] The flow distribution assembly 55 comprises a fixed shell 551 fixedly connected to the inner wall of the fractionating column 1 close to the fixed platform 51, the fixed shell 551 is provided with two, the top of the fixed shell 551 is fixedly connected with an annular containing shell 552, the top of the annular containing shell 552 is respectively penetrated and slidingly connected with a sliding cylinder 553 around the periphery, the bottom of the sliding cylinder 553 is communicated with a one-way valve 554, the one-way valve 554 is a gas special one-way valve, such a valve is designed to allow only gas to flow, in the gas system, it allows gas to flow freely while preventing the passage of liquid through the appropriate selection of sealing design and materials, the outer wall of the sliding cylinder 553 is respectively provided with a plurality of air holes 555, when the high-pressure gas flow moves upward, the air pressure generated by the high-pressure gas flow makes the sliding cylinder 553 vertically move upward along the inner wall of the fixed shell 551, at this time, the high-pressure gas flow enters the inside of the fixed shell 551, through the arrangement of the air holes 555, the gas flow enters the inside of the sliding cylinder 553 through the air holes 555, then the gas flow contacts the liquid on the top of the fixed shell 551 through the air holes 555, thereby improving the working efficiency of the fractionation, the top of the sliding cylinder 553 is fixedly connected with a connecting plate 556, the bottom side of the connecting plate 556 is fixedly connected with a spring 557, the bottom of the spring 557 is fixedly connected to the top of the fixed shell 551.

[0037] The outer wall of the sliding cylinder 553 is provided with a stirring assembly 56, which comprises a fixed ring 561 fixedly connected to the outer wall of the sliding cylinder 553, the fixed ring 561 being arranged inside the fixed shell 551, one side of the outer wall of the fixed ring 561 being rotatably connected with a rotating plate 562, the top end of the rotating plate 562 being rotatably connected with a sliding block 563, and four sliding grooves 564 being respectively arranged around the top of the inner wall of the fixed ring 561.

[0038] The top end of the outer wall of the sliding block 563 is slidably connected to the inner wall of the sliding groove 564, one end of the outer wall of the sliding block 563 is slidably connected with an arc-shaped groove plate 565, the top of the arc-shaped groove plate 565 is rotatably connected to the top of the inner wall of the fixed shell 551, the inner wall of the arc-shaped groove plate 565 is fixedly connected with a rotating ring shell 566, the bottom of the inner wall of the rotating ring shell 566 is rotatably connected to the bottom of the inner wall of the fixed shell 551, and four reset springs 567 are respectively fixedly connected around the bottom of the inner wall of the rotating ring shell 566.

[0039] The top of the reset spring 567 is fixedly connected with a lifting ring 568, four limiting blocks 569 are respectively fixedly connected around the outer wall of the lifting ring 568, four limiting grooves 5610 are respectively arranged around the inner cavity of the rotating ring shell 566, the outer wall of the limiting block 569 is slidably connected to the inner wall of the limiting groove 5610, four bent rods 5611 are respectively fixedly connected around the top of the lifting ring 568, the outer wall of the middle end of the bent rod 5611 is fixedly connected with a stirring plate 5612, when the sliding cylinder 553 moves upward, the sliding cylinder 553 drives the fixed ring 561 to move upward, the fixed ring 561 drives the rotating plate 562 to move upward, the rotating plate 562 drives the sliding block 563 to move along the outer wall of the sliding groove 564, the sliding block 563 is limited by the arc-shaped hole of the arc-shaped groove plate 565, and the sliding block 563 moves to make the arc-shaped groove plate 565 rotate along the center of the inner wall of the fixed shell 551 during the movement process, the arc-shaped groove plate 565 drives the rotating ring shell 566 to rotate, the rotating ring shell 566 drives the limiting block 569 to rotate, the limiting block 569 drives the lifting ring 568 to rotate, the lifting ring 568 drives the bent rod 5611 to rotate, the bent rod 5611 drives the stirring plate 5612 to rotate, and the stirring plate 5612 rotates to stir the bubbles generated in the gas-liquid mixture, so that large bubbles are prevented from being generated during the rising of the gas, and the fractionation effect of the gas-liquid is improved.

[0040] The top of the bent rod 5611 is provided with a filtering assembly 57, which comprises a circular ring plate 571 fixedly connected to the top of the bent rod 5611, the bottom of the circular ring plate 571 is provided with an annular groove 572, and the top of the circular ring plate 571 is fixedly connected with a conical filter plate 573. During rotation of the bent rod 5611, the bent rod 5611 drives the circular ring plate 571 to rotate, and the circular ring plate 571 drives the conical filter plate 573 to rotate. When the liquid falls, it will come into contact with the top of the conical filter plate 573, and the impurity particles in the liquid will be blocked by the conical filter plate 573. At this time, the conical filter plate 573 can shake off the impurity particles stuck in the filter holes of the conical filter plate 573 during rotation, thereby improving the effect of gas-liquid fractionation. The inner wall of the annular groove 572 is slidably connected with four sliding frames 574, and the bottom of the sliding frame 574 is fixedly connected to the top of the connecting plate 556.

[0041] The bottom center of the conical filter plate 573 is fixedly connected with an extrusion rod 575, the bottom of the extrusion rod 575 is in contact with a blocking block 579, the bottom of the blocking block 579 is fixedly connected with a first extrusion spring 578, the bottom of the first extrusion spring 578 is fixedly connected with a conical tube 576, the outer wall of the conical tube 576 is fixedly connected to the inner cavity of the fixed shell 551, and the bottom end of the outer wall of the conical tube 576 is communicated with a liquid seal valve 577. The liquid seal valve 577 utilizes the sealing effect of liquid to prevent gas from flowing. Its design usually includes a liquid seal chamber, which maintains the gas from passing through by the pressure difference of the liquid. Such a valve is usually used to prevent gas leakage. The sliding cylinder 553 drives the connecting plate 556 to move upwards, the connecting plate 556 drives the sliding frame 574 to move upwards, the sliding frame 574 moves upwards to make the circular ring plate 571 move upwards, which is limited by the annular groove 572, so that the circular ring plate 571 cannot be stuck during upward movement. The circular ring plate 571 drives the conical filter plate 573 to move vertically upwards. At this time, the conical filter plate 573 can make the impurity particles enter the inside of the annular filter shell 552 during the process of shaking off the impurity particles, thereby further improving the effect of gas-liquid fractionation. When the liquid and the impurity particles enter the inside of the annular filter shell 552 together, the liquid passes through the filter holes and enters the top of the fixed shell 551 due to the filter hole setting of the annular filter shell 552.

[0042] The top of the conical filter plate 573 is provided with an impact assembly 58, which comprises a vertical rod 581 rotatably connected to the top of the conical filter plate 573. The inner wall of the fixed shell 551 is fixedly connected with a limiting frame 582 close to the fractionation tower 1. The limiting frame 582 is provided with two limiting frames 582. The outer wall of one end of the vertical rod 581 is slidably connected to the inner wall of the limiting frame 582. The outer wall of the top end of the vertical rod 581 is rotatably connected with four rotating rods 583. The end of the rotating rod 583 away from the vertical rod 581 is rotatably connected with a sliding plate 584.

[0043] The inner wall of the sliding plate 584 is slidingly connected to the outer wall of the limiting frame 582, the bottom of the sliding plate 584 is fixedly connected with the vertical plate 585, the bottom end of the vertical plate 585 is penetratingly and slidingly connected with the impact frame 586, one end of the impact frame 586 is fixedly connected with the second extrusion spring 587, and one end of the second extrusion spring 587 is fixedly connected to the side wall of the vertical plate 585. When the conical filter plate 573 moves upward, the conical filter plate 573 drives the vertical rod 581 to move upward, the vertical rod 581 drives the rotating strip 583 to move upward, and the rotating strip 583 is limited by the limiting frame 582, so that the rotating strip 583 drives the sliding plate 584 to slide along the outer wall of the limiting frame 582, the sliding plate 584 drives the vertical plate 585 to move, and the vertical plate 585 drives the impact frame 586 to move. The impact frame 586 collides with the side wall of the conical filter plate 573 moving upward during the movement, so that the conical filter plate 573 is slightly vibrated, cooperates with the inclined surface of the conical filter plate 573, and can make the impurity particles enter the inside of the annular filter shell 552, and further improves the separation effect of the impurity particles.

[0044] When in use, the mixture is filled into the inside of the fractionating tower 1 through the inlet pipe 4 with high-pressure gas, the heater 53 is started to heat, the heat generated by the heater 53 is transferred to the heating shell 52, the heat energy of the heating shell 52 heats the falling mixture to carry out gas-liquid separation, at the same time, the gas pump 7 is started to generate negative pressure in the inside of the reflux pipe 8, the negative pressure absorbs the liquid staying on the top of the fixed table 51 to make the liquid enter into the top end of the fractionating tower 1 through the reflux pipe 8, so as to carry out reflux separation work, so that the liquid stays on the top of the fixed shell 551, when the high-pressure gas flow moves upward, the gas pressure makes the sliding cylinder 553 move vertically along the inner wall of the fixed shell 551, at this time, the high-pressure gas flow enters into the inside of the fixed shell 551, through the setting of the air hole 555, the gas flow enters into the inside of the sliding cylinder 553 through the air hole 555, then the gas flow contacts with the liquid on the top of the fixed shell 551 through the air hole 555, so as to improve the working efficiency of the fractionation, when the sliding cylinder 553 moves upward, the sliding cylinder 553 drives the fixed ring 561 to move upward, the fixed ring 561 drives the rotating plate 562 to move upward, the rotating plate 562 drives the sliding block 563 to move along the outer wall of the sliding groove 564, the sliding block 563 moves in the process to make the arc-shaped groove plate 565 rotate along the center of the inner wall of the fixed shell 551, the arc-shaped groove plate 565 drives the rotating ring shell 566 to rotate, the rotating ring shell 566 drives the limiting block 569 to rotate under the limiting of the limiting groove 5610, the limiting block 569 drives the lifting ring 568 to rotate, the lifting ring 568 drives the bent rod 5611 to rotate, the bent rod 5611 drives the stirring plate 5612 to rotate, the stirring plate 5612 rotates in the process to crush the bubbles generated in the gas-liquid mixture, prevent large bubbles generated in the process of gas rising, side improve the fractionation effect of gas-liquid.

[0045] When the bent rod 5611 rotates, the bent rod 5611 drives the circular ring plate 571 to rotate, and the circular ring plate 571 drives the conical filter plate 573 to rotate. When the liquid falls, it will contact the top of the conical filter plate 573, and the impurity particles in the liquid will be blocked by the conical filter plate 573. At this time, the conical filter plate 573 can shake off the impurity particles stuck in the filter holes of the conical filter plate 573 during rotation, thereby improving the effect of gas-liquid fractionation. At the same time, the sliding cylinder 553 drives the connecting plate 556 to move upwards, and the connecting plate 556 drives the sliding frame 574 to move upwards. The circular ring plate 571 moves upwards during the upward movement of the sliding frame 574, and is limited by the annular groove 572 to prevent the circular ring plate 571 from being stuck during upward movement. The circular ring plate 571 drives the conical filter plate 573 to move vertically upwards. At this time, the conical filter plate 573 can make the impurity particles enter the inside of the annular filter shell 552 during the process of shaking off the impurity particles, thereby further improving the effect of gas-liquid fractionation. When the liquid and the impurity particles enter the inside of the annular filter shell 552 together, the liquid passes through the filter holes and enters the top of the fixed shell 551 due to the filter hole setting of the annular filter shell 552.

[0046] When the conical filter plate 573 moves upwards, the conical filter plate 573 drives the vertical rod 581 to move upwards, and the vertical rod 581 drives the rotating bar 583 to move upwards. The rotating bar 583 is limited by the limiting frame 582 and drives the sliding plate 584 to slide along the outer wall of the limiting frame 582. The sliding plate 584 drives the vertical plate 585 to move, and the vertical plate 585 drives the impact frame 586 to move. The impact frame 586 moves and collides with the side wall of the upward-moving conical filter plate 573, causing the conical filter plate 573 to vibrate slightly. In combination with the inclined surface setting of the conical filter plate 573, the impurity particles can enter the inside of the annular filter shell 552, thereby further improving the separation effect of the impurity particles. When the high-pressure gas is not enough to make the sliding cylinder 553 move upwards, the connecting plate 556 drives the sliding cylinder 553 to move vertically downward due to the elastic deformation of the spring 557. At the same time, the conical filter plate 573 moves downward, and the conical filter plate 573 drives the extrusion rod 575 to move downward. The extrusion rod 575 presses the top of the blocking block 579 during downward movement, so that the blocking block 579 no longer blocks the conical port of the conical tube 576, thereby enabling the liquid at the top of the fixed shell 551 to enter the inside of the conical tube 576. The liquid falls downward through the conical tube 576 and then stays on the top of the fixed table 51. When the fractionation work is completed, the communication opening of the liquid discharge pipe 54 is opened, so that the liquid can be discharged to the outside.

[0047] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to provide the best illustration of the application and its practical application to those skilled in the art and to enable those skilled in the art to best utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A low pressure drop fractionating column comprising a fractionating column (1), characterized in that: The bottom of the fractionating tower (1) is fixedly connected with a supporting plate (2), the top of the fractionating tower (1) is communicated with an exhaust cylinder (3), one side of the outer wall of the fractionating tower (1) is communicated with a feeding pipe (4), the top end of the outer wall of the fractionating tower (1) is fixedly connected with a fixed plate (6), the bottom of the fixed plate (6) is fixedly connected with an air pump (7), the output end of the air pump (7) is communicated with a backflow pipe (8), one end of the backflow pipe (8) is communicated with the top end of the fractionating tower (1), the other end of the backflow pipe (8) is communicated with the bottom end of the fractionating tower (1), and the fractionating tower (1) further comprises: A low-pressure stabilizing mechanism (5) is arranged in the fractionating tower (1), the low-pressure stabilizing mechanism (5) comprises a fixed table (51) fixedly connected to the inner wall of the fractionating tower (1), a heating shell (52) fixedly connected to the top of the fixed table (51), a heater (53) fixedly connected to the bottom of the inner wall of the heating shell (52), and a liquid discharge pipe (54) communicated with the center of the top of the fixed table (51), wherein one end of the liquid discharge pipe (54) penetrates through the fractionating tower (1) and extends to the outside of the fractionating tower (1), and the inner wall of the fractionating tower (1) is provided with a flow distribution assembly (55); The flow distribution assembly (55) comprises a fixed shell (551) fixedly connected to the inner wall of the fractionating tower (1) near the fixed table (51), two fixed shells (551) are arranged, an annular containing shell (552) is fixedly connected to the top of each fixed shell (551), a sliding cylinder (553) is respectively and slidably connected to the top of each annular containing shell (552) through penetration, a one-way valve (554) is communicated with the bottom of each sliding cylinder (553), a plurality of air holes (555) are respectively formed in the outer wall of each sliding cylinder (553), a connecting plate (556) is fixedly connected to the top of each sliding cylinder (553), a spring (557) is fixedly connected to one side of the bottom of each connecting plate (556), and the bottom of each spring (557) is fixedly connected to the top of each fixed shell (551). An agitating assembly (56) is arranged on the outer wall of each sliding cylinder (553), the agitating assembly (56) comprises a fixed ring (561) fixedly connected to the outer wall of each sliding cylinder (553), the fixed ring (561) is arranged in the fixed shell (551), a rotating plate (562) is rotatably connected to one side of the outer wall of the fixed ring (561), a sliding block (563) is rotatably connected to the top end of the rotating plate (562), and four sliding grooves (564) are respectively formed in the top of the inner wall of the fixed ring (561).

2. A low pressure drop fractionating column according to claim 1, characterized in that: The top end of the sliding block (563) is slidably connected to the inner wall of the sliding groove (564), an arc-shaped groove plate (565) is slidably connected to one end of the outer wall of the sliding block (563), the top of the arc-shaped groove plate (565) is rotatably connected to the top of the inner wall of the fixed shell (551), a rotating ring shell (566) is fixedly connected to the inner wall of the arc-shaped groove plate (565), the bottom of the rotating ring shell (566) is rotatably connected to the bottom of the inner wall of the fixed shell (551), and four reset springs (567) are respectively fixedly connected to the bottom of the inner wall of the rotating ring shell (566).

3. A low pressure drop fractionating column according to claim 2, characterized in that: The top of the reset spring (567) is fixedly connected with a lifting ring (568), the outer wall of the lifting ring (568) is fixedly connected with four limiting blocks (569) respectively, the inner cavity of the rotating ring shell (566) is provided with four limiting grooves (5610) respectively, the outer wall of the limiting block (569) is slidably connected with the inner wall of the limiting groove (5610), the top of the lifting ring (568) is fixedly connected with four bent rods (5611) respectively, and the bent rod (5611) is fixedly connected with a stirring plate (5612) on the outer wall of the middle end.

4. A low pressure drop fractionating column according to claim 3, characterized in that: The top of the bent rod (5611) is provided with a filtering assembly (57), the filtering assembly (57) comprises a circular ring plate (571) fixedly connected to the top of the bent rod (5611), an annular groove (572) is formed in the bottom of the circular ring plate (571), the top of the circular ring plate (571) is fixedly connected with a conical filter plate (573), four sliding frames (574) are slidably connected around the inner wall of the annular groove (572), and the bottom of the sliding frame (574) is fixedly connected to the top of the connecting plate (556).

5. A low pressure drop fractionating column according to claim 4, characterized in that: The bottom center of the conical filter plate (573) is fixedly connected with a pressing rod (575), the bottom of the pressing rod (575) is in contact with a blocking block (579), the bottom of the blocking block (579) is fixedly connected with a first pressing spring (578), the bottom of the first pressing spring (578) is fixedly connected with a conical tube (576), the outer wall of the conical tube (576) is fixedly connected in the inner cavity of the fixed shell (551), and the bottom end of the outer wall of the conical tube (576) is communicated with a liquid seal valve (577) on one side.

6. A low pressure drop fractionating column according to claim 5, characterized in that: The top of the conical filter plate (573) is provided with an impact assembly (58), the impact assembly (58) comprises a vertical rod (581) rotatably connected to the top of the conical filter plate (573), the inner wall of the fixed shell (551) is fixedly connected with a limiting frame (582) close to the distillation column (1), the limiting frame (582) is provided with two, the outer wall of one end of the vertical rod (581) is slidably connected with the inner wall of the limiting frame (582), the top end of the outer wall of the vertical rod (581) is rotatably connected with four rotating rods (583) respectively, and the end of the rotating rod (583) away from the vertical rod (581) is rotatably connected with a sliding plate (584).

7. A low pressure drop fractionating column according to claim 6, characterized in that: The inner wall of the sliding plate (584) is slidably connected with the outer wall of the limiting frame (582), the bottom of the sliding plate (584) is fixedly connected with a vertical plate (585), one side of the bottom end of the vertical plate (585) penetrates and slidably connected with an impact frame (586), one end of the side wall of the impact frame (586) is fixedly connected with a second pressing spring (587), and one end of the second pressing spring (587) is fixedly connected with the side wall of the vertical plate (585).

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