A plate-type packed distillation tower

Abstract

The present invention belongs to the field of chemical technology, and specifically is a plate-type packed distillation tower, comprising a tower body, wherein the upper part of the tower body is a packed tower section, the lower part is a plate-type tower section, a base is fixedly connected to the ground, an air outlet, a liquid inlet and a positive and negative electric motor are arranged at the top of the packed tower section, a No. 1 elastic rope is rotatably connected to the rotating shaft of the positive and negative electric motor, a spiral sheet is fixedly connected to the end of the rotating shaft of the positive and negative electric motor, a metal packing plate is arranged at one end of the packed tower section away from the positive and negative electric motor, a metal column is arranged on the metal packing plate near the surface of the spiral sheet, a baffle is arranged on the surface of the metal column, metal plates are sleeved between the baffles, the No. 1 elastic rope is fixedly connected to the metal plate through a wire pulley, a paddle is arranged on the No. 1 elastic rope, and an air bag is arranged on the inner wall of the packed tower section. The present invention paddles the air bag, the air bag is squeezed and expanded for many times, and the liquid on the air bag is beaten and dispersed, thereby increasing the contact area and contact time between the liquid and the water vapor, and further improving the gas-liquid mass transfer effect.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical industry, in particular to a plate-type filling distillation tower. Background Art

[0002] A distillation tower is a tower-type gas-liquid contact device for distillation. When the distillation tower is working, the gas and liquid phases are in countercurrent contact and transfer heat and mass to each other. The volatile components in the liquid phase enter the gas phase, and the non-volatile components in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation. The equipment used in the distillation process can be divided into plate towers and packed towers.

[0003] In the prior art, when conveying liquid to a distillation tower, a spray device is used at the output port, so that the liquid is sprayed out through the spray device and the liquid falls directly, thereby achieving the effect of converting the liquid into water droplets; however, during the spraying process, the liquid adheres to the inner wall of the distillation tower due to the different angles of the spray port, and the contact time and contact area between the liquid and the water vapor are reduced, thereby reducing the gas-liquid mass transfer effect.

[0004] In view of this, in order to overcome the above technical problems, the present invention designs a plate-type packed distillation tower to solve the above technical problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is that during the spraying process of the liquid, the liquid adheres to the inner wall of the distillation tower due to the different angles of the spray port, the contact time and contact area between the liquid and water vapor are reduced, thereby reducing the gas-liquid mass transfer effect.

[0006] The present invention provides a plate-type packed distillation tower, comprising a tower body, wherein the upper part of the tower body is a packed tower section, and the lower part is a plate-type tower section;

[0007] The bottom of the tower body is fixedly connected to a base, and the base is fixedly connected to the ground;

[0008] The top of the packed tower section is provided with an air outlet, a liquid inlet and a forward and reverse motor;

[0009] The plate tower section is provided with an air inlet near the base;

[0010] The forward and reverse motor is fixedly connected to the packing tower section, and the output end of the forward and reverse motor runs through the inside of the tower body;

[0011] The output end of the forward and reverse motor is connected with an elastic strip through a horizontal plate;

[0012] The output end of the forward and reverse motor is wound with a No. 1 elastic rope, and the No. 1 elastic rope is guided by a wire wheel;

[0013] One end of the first elastic rope is fixedly connected to the output end of the forward and reverse motor, and the other end is fixedly connected to the metal plate slidably connected to the inner wall of the tower body;

[0014] The inner wall of the tower body is fixedly connected with one or more air bags; the surface of the No. 1 elastic rope is fixedly connected with a paddle, and when the No. 1 elastic rope moves, the paddle paddles the air bags.

[0015] Preferably, the number of the elastic strips is two and the two are connected by a No. 2 elastic rope.

[0016] Preferably, an elastic ball is provided at one end of the elastic band away from the output end, and the elastic ball is fixedly connected to the elastic band via a No. 3 elastic rope.

[0017] Preferably, a through hole is provided in the metal plate, and a spring is fixedly connected to a side of the through hole close to the metal filler plate.

[0018] Preferably, a downcomer plate is fixedly connected to the inner wall of the plate tower section, the number of the downcomer plate is more than one, a triangular block is provided on the surface of the downcomer plate, the triangular block is fixedly connected to the downcomer plate, and the number of the triangular block is more than one.

[0019] Preferably, the plate tower section is provided with a liquid outlet near the base, the liquid outlet is fixedly connected to a circulator, a residual liquid outlet is provided on the side of the circulator near the base, a reflux channel is provided on the side of the circulator away from the liquid outlet, and the reflux channel is connected to the liquid inlet at one end away from the circulator.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention provides a plate-type packed distillation tower, in which liquid is beaten onto the airbag on the inner wall of the packed tower section, and the protruding airbag prevents the liquid from generating wall flow. The liquid falling on the airbag contacts with water vapor again, thereby increasing the contact time between the liquid and water vapor and further improving the gas-liquid mass transfer effect. The paddle on the No. 1 elastic rope pokes the airbag, and the airbag is squeezed and opened multiple times, and the liquid on the airbag is beaten and dispersed, thereby increasing the contact area between the liquid and water vapor and further improving the gas-liquid mass transfer effect.

[0022] 2. The present invention provides a plate-type packed distillation tower, in which the No. 3 elastic rope is subjected to the traction force of the elastic ball to perform reciprocating motion of stretching and contraction, and the elastic ball is deformed by the No. 3 elastic rope, so that the elastic ball hits the airbag, causing the liquid on the airbag to be knocked off again, further preventing the liquid from generating wall flow. The falling liquid hits the rotating No. 3 elastic rope, and the liquid is hit and dispersed again, so that the liquid contacts with water vapor again, thereby increasing the contact time between the liquid and the water vapor, and at the same time increasing the contact area between the liquid and the water vapor again, further improving the gas-liquid mass transfer effect.

[0023] 3. The present invention provides a plate-type packed distillation tower, in which liquid flows along the inner wall of the plate-type tower section to the downcomer plate, and the triangular blocks on the downcomer plate block the liquid, slowing down the flow time of the liquid, further increasing the contact time between the liquid and water vapor. The continuously flowing liquid can arouse the liquid blocked by the downcomer plate, so that the liquid contacts the water vapor again, increasing the contact area. During the liquid flow process, the liquid contacts the water vapor multiple times, increasing the contact time and further improving the gas-liquid mass transfer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is the main figure of the present invention;

[0026] Figure 2 is a cross-sectional view of the present invention;

[0027] Figure 3 is a side view of the present invention;

[0028] Figure 4 yes Figure 2 The enlarged view of point A in the middle;

[0029] In the figure: tower body 1, packed tower section 2, plate tower section 3, base 4, air outlet 11, liquid inlet 12, air inlet 11, positive and negative electric motor 13, No. 1 elastic rope 131, elastic strip 132, No. 2 elastic rope 134, elastic ball 135, No. 3 elastic rope 136, wire wheel 21, metal plate 15, through hole 151, spring 152, paddle 133, air bag 16, metal packing plate 17, baffle 172, downcomer 31, triangular block 32, liquid outlet 33, circulator 34, residual liquid outlet 341, reflux channel 342; DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] The present invention provides a plate-type packed distillation tower, comprising a tower body 1, wherein the upper portion of the tower body 1 is a packed tower section 2, and the lower portion is a plate-type tower section 3;

[0032] The bottom of the tower body 1 is fixedly connected with a base 4, and the base 4 is fixedly connected to the ground;

[0033] The top of the packed tower section 2 is provided with an air outlet 11, a liquid inlet 12 and a forward and reverse motor 13;

[0034] The plate tower section 3 is provided with an air inlet 14 near the base 4;

[0035] The forward and reverse motor 13 is fixedly connected to the filling tower section 2, and the output end of the forward and reverse motor 13 penetrates into the tower body 1;

[0036] The output end of the forward and reverse motor 13 is connected to an elastic strip 132 through a horizontal plate;

[0037] The output end of the forward and reverse motor 13 is wound with a first elastic rope 131, and the first elastic rope 131 is guided by a guide wheel 21;

[0038] One end of the first elastic rope 131 is fixedly connected to the output end of the forward and reverse motor 13, and the other end is fixedly connected to the metal plate 15 slidably connected to the inner wall of the tower body 1;

[0039] The inner wall of the tower body 1 is fixedly connected with one or more air bags 16 ; the surface of the No. 1 elastic rope 131 is fixedly connected with a paddle 133 , and when the No. 1 elastic rope 131 moves, the paddle 133 paddles the air bags 16 .

[0040] When the plate-type packed distillation tower starts to work, liquid enters from the liquid inlet 12 and is sprayed out through the spraying device. At this time, the rotating shaft on the forward and reverse motor 13 drives the elastic belt 132 to start rotating alternately in forward and reverse directions. The rotating elastic belt 132 beats and disperses the sprayed liquid, which slows down the falling time of the liquid, increases the contact time and contact area between the liquid and the water vapor, and improves the gas-liquid mass transfer effect. A part of the dispersed liquid is beaten and directly drips onto the metal plate 15, and another part of the liquid is beaten onto the air bag 16 on the inner wall of the packed tower section 2. The protruding air bag 16 prevents the liquid from generating wall flow. The liquid falling on the air bag contacts with the water vapor again, thereby increasing the contact time between the liquid and the water vapor, and further improving the gas-liquid mass transfer effect.

[0041] The No. 1 elastic rope 131 wound around the shaft of the forward and reverse motor 13 is fixedly connected to the metal plate 15 through the wire pulley 21. A paddle 133 is placed on the fixedly connected No. 1 elastic rope 131. When the forward rotation occurs, the metal plate 15 is pulled up by the No. 1 elastic rope 131, and the paddle 133 on the No. 1 elastic rope 131 paddles the airbag 16. The airbag 16 is pushed upward by the paddle 133, so that the airbag 16 is squeezed. When the paddle 133 leaves the airbag 16, the airbag 16 returns to its original state. During the pulling process, the airbag 16 is continuously squeezed, deformed, and restored to its original state. During the squeezing, deformation, and restoration process, the liquid on the airbag 16 is slapped and dispersed, so as to The contact area between the liquid and the water vapor is increased, and the gas-liquid mass transfer effect is further improved. When the reversal occurs, the metal plate 15 is lowered by the No. 1 elastic rope 131, and the paddle 133 on the No. 1 elastic rope 131 paddles the airbag 16. The airbag 16 is pushed downward by the paddle 133, so that the airbag 16 is squeezed. When the paddle 133 leaves the airbag 16, the airbag 16 returns to its original state. During the descent process, the airbag 16 is continuously squeezed, deformed, and restored to its original state. During the squeezing, deformation, and restoration process, the liquid on the airbag 16 is patted and dispersed again, thereby further increasing the contact area between the liquid and the water vapor, and further improving the gas-liquid mass transfer effect.

[0042] In the prior art, when a distillation tower is used to transport liquid, a spray device is used at the outlet to spray the liquid through the spray device, and the liquid falls directly, thereby achieving the effect of converting the liquid into water droplets; however, during the spraying process, the liquid adheres to the inner wall of the distillation tower due to the different angles of the spray port, and the contact time and contact area between the liquid and the water vapor are reduced, thereby reducing the gas-liquid mass transfer effect;

[0043] The airbag 16 protruding from the inner wall of the packed tower section 2 of the present invention prevents the liquid from generating wall flow. The liquid falling on the airbag 16 contacts with water vapor again, which increases the contact time between the liquid and the water vapor and improves the gas-liquid mass transfer effect. The paddle 133 on the No. 1 elastic rope 131 on the rotating shaft cooperates with the guide wheel and the metal plate 15, so that the airbag 16 can be squeezed and opened multiple times, thereby further increasing the contact area between the liquid and the water vapor and further improving the gas-liquid mass transfer effect. The liquid sprayed by the rotating elastic belt 132 on the forward and reverse motor 13 is slapped and scattered, which slows down the falling time of the liquid, increases the contact time and contact area between the liquid and the water vapor, and further improves the gas-liquid mass transfer effect.

[0044] As a specific implementation of the present invention, the number of the elastic strips 132 is two and the two are connected by a No. 2 elastic rope 134 .

[0045] When the elastic belt 132 starts to rotate alternately forward and reverse, the liquid dropped from the spray device is scattered on the elastic belt 132. The two elastic belts 132 generate centrifugal force due to the alternating rotation of the forward and reverse motor 13, so that the rotating elastic belt 132 pulls the No. 2 elastic rope 134, and the No. 2 elastic rope 134 performs reciprocating motion of stretching and contraction, so that the elastic belt 132 performs disordered motion, which hits and scatters the falling liquid, increases the range of hitting the liquid, and further improves the effect of beating the liquid. The water vapor goes up and encounters the liquid, liquefies into water droplets, releases heat, separates the components in the liquid, increases the contact time between the liquid and the water vapor, and at the same time increases the contact area between the liquid and the water vapor, thereby improving the gas-liquid mass transfer effect.

[0046] As a specific implementation of the present invention, an elastic ball 135 is provided at one end of the elastic band 132 away from the output end, and the elastic ball 135 is fixedly connected to the elastic band 132 via a No. 3 elastic rope 136 .

[0047] When the forward and reverse motor 13 is working, the elastic belt 132 rotates alternately in forward and reverse directions, and the elastic ball 135 fixedly connected to the end of the elastic belt 132 by the No. 3 elastic rope 136 also starts to swing with the forward and reverse rotation of the elastic belt 132. The elastic ball 135 relies on its own gravity to make the No. 3 elastic rope 136 perform reciprocating motion of stretching and contraction under the traction force of the elastic ball 135 during forward and reverse rotation. The elastic ball 135 is deformed by the No. 3 elastic rope 136, so that the elastic ball 135 hits the airbag 16, causing the liquid on the airbag 16 to be hit off again, further preventing the liquid from generating wall flow. The falling liquid hits the rotating No. 3 elastic rope 136, and the liquid is hit and scattered again, so that the liquid contacts with water vapor again, thereby increasing the contact time between the liquid and the water vapor, and at the same time increasing the contact area between the liquid and the water vapor again, further improving the gas-liquid mass transfer effect.

[0048] As a specific implementation of the present invention, a through hole 11 is opened in the metal plate 15 , and a spring 152 is fixedly connected to the through hole 151 on one side close to the metal filler plate 14 .

[0049] When the forward and reverse motor 13 rotates forward, the metal plate 15 is pulled up to the baffle 171 by the No. 1 elastic rope 131. When pulled up, the water vapor goes up and the liquid goes down. The liquid forms water droplets through the spring 152 connected to the inner wall of the through hole 151 and drips on the metal filling plate 17. The impact force of the dripping water droplets is reduced, so that the water droplets are better and more evenly attached to the metal filling plate 17, thereby increasing the contact area between the water droplets and the water vapor and improving the gas-liquid mass transfer effect. When reversal occurs, the metal plate 15 falls and is shaken, thereby further dispersing the water droplets coming down from the through hole 151. The dispersed water droplets are in full contact with the metal filling plate 17, further increasing the contact area between the water droplets and the water vapor and improving the gas-liquid mass transfer effect.

[0050] As a specific embodiment of the present invention, a downcomer 31 is fixedly connected to the inner wall of the plate tower section 3, and the number of the downcomer 31 is more than one. A triangular block 32 is provided on the surface of the downcomer 31, and the triangular block 32 is fixedly connected to the downcomer 31, and the number of the triangular block 32 is more than one.

[0051] The liquid drips downward from the metal filler plate 14, and a part of the liquid drips directly onto the downcomer plate 31 and hits the liquid blocked by the downcomer plate 31. The impacted liquid generates local pressure to disperse the liquid, thereby increasing the contact time and contact area between the liquid and the water vapor, and improving the gas-liquid mass transfer effect. The other part of the liquid flows along the inner wall of the plate tower section 3 to the downcomer plate 31. The triangular blocks 32 on the downcomer plate 31 block the liquid and slow down the flow time of the liquid, further increasing the contact time between the liquid and the water vapor. The liquid that is blocked by the downcomer plate 31 can be aroused as it continues to flow, so that the liquid contacts the water vapor again, increasing the contact area. During the flow of the liquid, the liquid contacts the water vapor many times, increasing the contact time, and further improving the gas-liquid mass transfer effect.

[0052] As a specific embodiment of the present invention, the plate tower section 3 is provided with a liquid outlet 33 near the base 4, and the liquid outlet 33 is fixedly connected to a circulator 34. The circulator 34 is provided with a residual liquid port 341 on the side close to the base 4, and a reflux channel 342 is provided on the side of the circulator 34 away from the liquid outlet 34. The reflux channel 342 is connected to the liquid inlet 12 at the end away from the circulator 34.

[0053] The liquid obtained after steam distillation flows into the circulator 35 from the liquid outlet 34 and is processed again in the circulator 35 to obtain residual liquid and liquid. A part of the residual liquid flows out through the residual liquid outlet 351, and the other part of the liquid returns to the tower body 1 through the reflux channel 352 for recycling. The refluxed liquid ensures the balance of gas and liquid in the tower body 1, and also maintains the heat balance in the tower body 1. The required components are obtained after multiple cycles.

[0054] The specific workflow is as follows:

[0055] When the plate-type packed distillation tower starts to work, liquid enters from the liquid inlet 12 and is sprayed out through the spraying device. At this time, the rotating shaft on the forward and reverse motor 13 drives the elastic belt 132 to start rotating alternately in forward and reverse directions. The rotating elastic belt 132 beats and disperses the sprayed liquid, which slows down the falling time of the liquid, increases the contact time and contact area between the liquid and the water vapor, and improves the gas-liquid mass transfer effect. A part of the dispersed liquid is beaten and directly drips onto the metal plate 15, and another part of the liquid is beaten onto the air bag 16 on the inner wall of the packed tower section 2. The protruding air bag 16 prevents the liquid from generating wall flow. The liquid falling on the air bag contacts with the water vapor again, thereby increasing the contact time between the liquid and the water vapor, and further improving the gas-liquid mass transfer effect.

[0056] The No. 1 elastic rope 131 wound around the shaft of the forward and reverse motor 13 is fixedly connected to the metal plate 15 through the wire pulley 21. A paddle 133 is placed on the fixedly connected No. 1 elastic rope 131. When the forward rotation occurs, the metal plate 15 is pulled up by the No. 1 elastic rope 131, and the paddle 133 on the No. 1 elastic rope 131 paddles the airbag 16. The airbag 16 is pushed upward by the paddle 133, so that the airbag 16 is squeezed. When the paddle 133 leaves the airbag 16, the airbag 16 returns to its original state. During the pulling process, the airbag 16 is continuously squeezed, deformed, and restored to its original state. During the squeezing, deformation, and restoration process, the liquid on the airbag 16 is slapped and dispersed, so as to The contact area between the liquid and the water vapor is increased, and the gas-liquid mass transfer effect is further improved. When the reversal occurs, the metal plate 15 is lowered by the No. 1 elastic rope 131, and the paddle 133 on the No. 1 elastic rope 131 paddles the airbag 16. The airbag 16 is pushed downward by the paddle 133, so that the airbag 16 is squeezed. When the paddle 133 leaves the airbag 16, the airbag 16 returns to its original state. During the descent process, the airbag 16 is continuously squeezed, deformed, and restored to its original state. During the squeezing, deformation, and restoration process, the liquid on the airbag 16 is patted and dispersed again, thereby further increasing the contact area between the liquid and the water vapor, and further improving the gas-liquid mass transfer effect.

[0057] In the prior art, when a distillation tower is used to transport liquid, a spray device is used at the outlet to spray the liquid through the spray device, and the liquid falls directly, thereby achieving the effect of converting the liquid into water droplets; however, during the spraying process, the liquid adheres to the inner wall of the distillation tower due to the different angles of the spray port, and the contact time and contact area between the liquid and the water vapor are reduced, thereby reducing the gas-liquid mass transfer effect;

[0058] The airbag 16 protruding from the inner wall of the packed tower section 2 of the present invention prevents the liquid from generating wall flow. The liquid falling on the airbag 16 contacts with water vapor again, which increases the contact time between the liquid and water vapor and improves the gas-liquid mass transfer effect. The paddle 133 on the No. 1 elastic rope 131 on the rotating shaft cooperates with the guide wheel and the metal plate 15 to squeeze and open the airbag 16 multiple times, thereby further increasing the contact area between the liquid and water vapor and further improving the gas-liquid mass transfer effect. The liquid sprayed by the rotating elastic belt 132 on the forward and reverse motor 13 is slapped and scattered, which slows down the falling time of the liquid, increases the contact time and contact area between the liquid and water vapor, and further improves the gas-liquid mass transfer effect.

[0059] When the elastic belt 132 starts to rotate alternately in forward and reverse directions, the liquid dropped from the spray device is scattered on the elastic belt 132. The two elastic belts 132 are subjected to the centrifugal force generated by the alternate rotation of the forward and reverse motor 13, so that the rotating elastic belt 132 pulls the second elastic rope 134, and the second elastic rope 134 performs a reciprocating motion of stretching and contraction, so that the elastic belt 132 performs a disordered motion, which hits and scatters the dropped liquid, thereby increasing the range of hitting the liquid, thereby further improving the effect of hitting the liquid. The water vapor goes up and encounters the liquid, liquefies into water droplets, and releases heat during liquefaction, which separates the components in the liquid, thereby increasing the contact time between the liquid and the water vapor, and at the same time increasing the contact area between the liquid and the water vapor, thereby improving the gas-liquid mass transfer effect;

[0060] When the forward and reverse motor 13 is working, the elastic belt 132 rotates alternately in the forward and reverse directions, and the elastic ball 135 fixedly connected to the end of the elastic belt 132 by the No. 3 elastic rope 136 also starts to swing with the forward and reverse rotation of the elastic belt 132. The elastic ball 135 relies on its own gravity to make the No. 3 elastic rope 136 perform reciprocating motion of stretching and contraction under the traction force of the elastic ball 135 during the forward and reverse rotation. The elastic ball 135 is deformed by the No. 3 elastic rope 136, so that the elastic ball 135 hits the airbag 16, causing the liquid on the airbag 16 to be hit again, further preventing the liquid from generating wall flow. The falling liquid hits the rotating No. 3 elastic rope 136, and the liquid is hit and scattered again, so that the liquid contacts the water vapor again, thereby increasing the contact time between the liquid and the water vapor, and at the same time increasing the contact area between the liquid and the water vapor again, further improving the gas-liquid mass transfer effect.

[0061] When the forward and reverse motor 13 rotates forward, the metal plate 15 is pulled up to the baffle 171 by the No. 1 elastic rope 131. When pulled up, the water vapor goes up and the liquid goes down. The liquid forms water droplets through the spring 152 connected to the inner wall of the through hole 151 and drips on the metal filler plate 17. The impact force of the dripping water droplets is reduced, so that the water droplets are better and more evenly attached to the metal filler plate 17, increasing the contact area between the water droplets and the water vapor and improving the gas-liquid mass transfer effect. When reversed, the metal plate 15 falls and is shaken, so that the water droplets coming down from the through hole 151 are further dispersed, and the dispersed water droplets are fully in contact with the metal filler plate 17, further increasing the contact area between the water droplets and the water vapor and improving the gas-liquid mass transfer effect.

[0062] Liquid drips downward from the metal filler plate 14, and part of the liquid drips directly onto the downcomer plate 31, and hits the liquid blocked by the downcomer plate 31. The impacted liquid generates local pressure, which disperses the liquid, thereby increasing the contact time and contact area between the liquid and the water vapor, and improving the gas-liquid mass transfer effect. Another part of the liquid flows along the inner wall of the plate tower section 3 to the downcomer plate 31. The triangular blocks 32 on the downcomer plate 31 block the liquid, slowing down the flow time of the liquid, and further increasing the contact time between the liquid and the water vapor. The liquid that is blocked by the downcomer plate 31 can be aroused as it flows continuously, so that the liquid contacts the water vapor again, and the contact area is increased. In the process of liquid flow, the liquid contacts the water vapor for many times, which increases the contact time and further improves the gas-liquid mass transfer effect.

[0063] The liquid obtained after steam distillation flows into the circulator 35 from the liquid outlet 33 and is processed again in the circulator 34 to obtain residual liquid and liquid. A part of the residual liquid flows out through the residual liquid outlet 341, and the other part of the liquid returns to the tower body 1 through the reflux channel 342 for recycling. The refluxed liquid ensures the balance of gas and liquid in the tower body 1, and also maintains the heat balance in the tower body 1. The required components are obtained after multiple cycles.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plate-type packed distillation tower, characterized in that: It comprises a tower body (1), wherein the upper part of the tower body (1) is a packed tower section (2), and the lower part is a plate tower section (3); The bottom of the tower body (1) is fixedly connected to a base (4), and the base (4) is fixedly connected to the ground; The top of the packed tower section (2) is provided with an air outlet (11), a liquid inlet (12) and a forward and reverse motor (13); The plate tower section (3) is provided with an air inlet (14) near the base (4); The forward and reverse motor (13) is fixedly connected to the packed tower section (2), and the output end of the forward and reverse motor (13) penetrates into the tower body (1); The output end of the forward and reverse motor (13) is connected to an elastic belt (132) via a transverse plate; An output end of the forward and reverse motor (13) is wound with a first elastic rope (131), and the first elastic rope (131) is guided by a guide wheel (21); One end of the first elastic rope (131) is fixedly connected to the output end of the forward and reverse motor (13), and the other end is fixedly connected to a metal plate (15) slidably connected to the inner wall of the tower body (1); The inner wall of the tower body (1) is fixedly connected to one or more air bags (16); the surface of the No. 1 elastic rope (131) is fixedly connected to a paddle (133); when the No. 1 elastic rope (131) moves, the paddle (133) paddles the air bags (16); An elastic ball (135) is provided at one end of the elastic band (132) away from the output end, and the elastic ball (135) is fixedly connected to the elastic band (132) via a No. 3 elastic rope (136); A through hole (151) is provided in the metal plate (15), and a spring (152) is fixedly connected to a side of the through hole (151) close to the metal filler plate (17); The paddle (133) on the first elastic rope (131) on the rotating shaft cooperates with the guide wheel and the metal plate (15), and the air bag (16) can be squeezed and opened multiple times; When the plate-type packed distillation tower starts to work, liquid enters from the liquid inlet (12) and is sprayed out through the spraying device. At this time, the rotating shaft on the forward and reverse motor drives the elastic belt (132) to start rotating in a forward and reverse alternating manner. The rotating elastic belt beats and disperses the sprayed liquid, which reduces the liquid falling time, increases the contact time and contact area between the liquid and water vapor, and improves the gas-liquid mass transfer effect. A part of the dispersed liquid is beaten and directly drips onto the metal plate (15), and another part of the liquid is beaten onto the air bag (16) on the inner wall of the packed tower section. The air bag (16) protruding from the inner wall of the packed tower section (2) prevents the liquid from generating wall flow. The liquid falling on the air bag contacts with the water vapor again, which increases the contact time between the liquid and the water vapor and improves the gas-liquid mass transfer effect. When the forward and reverse alternating motor rotates forward, the metal plate (15) is pulled up by the first elastic rope, and the paddle (133) on the first elastic rope paddles the airbag. The airbag is subjected to the upward pushing force of the paddle, thereby squeezing the airbag. When the paddle leaves the airbag, the airbag returns to its original state. During the pulling process, the airbag is continuously squeezed, deformed, and restored to its original state. During the squeezing, deformation, and restoration process, the liquid on the airbag is beaten and dispersed, thereby increasing the contact area between the liquid and the water vapor, and further improving the gas-liquid mass transfer effect. When the reverse rotation occurs, the metal plate (15) is lowered by the first elastic rope, and the paddle on the first elastic rope paddles the airbag. The airbag is subjected to the downward pushing force of the paddle, thereby squeezing the airbag. When the paddle leaves the airbag, the airbag returns to its original state. During the descending process, the airbag is continuously squeezed, deformed, and restored to its original state. During the squeezing, deformation, and restoration process, the liquid on the airbag is beaten and dispersed again, thereby further increasing the contact area between the liquid and the water vapor, and further improving the gas-liquid mass transfer effect. The paddle (133) on the No. 1 elastic rope on the rotating shaft cooperates with the guide wheel and the metal plate (15) to squeeze and open the air bag (16) multiple times, thereby increasing the contact area between the liquid and the water vapor and further improving the gas-liquid mass transfer effect.

2. A plate-type packed distillation tower according to claim 1, characterized in that: The number of the elastic bands (132) is two and the two are connected by a No. 2 elastic rope (134).

3. A plate-type packed distillation tower according to claim 1, characterized in that: A downcomer plate (31) is fixedly connected to the inner wall of the plate-type tower section (3), the number of the downcomer plate (31) is more than one, a triangular block (32) is provided on the surface of the downcomer plate (31), the triangular block (32) is fixedly connected to the downcomer plate (31), and the number of the triangular block (32) is more than one.

4. A plate-type packed distillation tower according to claim 1, characterized in that: The plate tower section (3) is provided with a liquid outlet (33) near the base (4), and the liquid outlet (33) is fixedly connected to a circulator (34). The circulator (34) is provided with a residual liquid outlet (341) on a side close to the base (4), and a reflux channel (342) is provided on a side of the circulator (34) away from the liquid outlet. The reflux channel (342) is connected to the liquid inlet (12) at one end away from the circulator (34).

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