Energy-saving rectifying tower with spiral baffles

Abstract

The utility model belongs to chemical engineering separation field especially relates to a spiral guide plate energy -saving rectifying tower, including support plate, rectifying tower body, liquid inlet pipe, float valve tray and guide plate etc.

Description

Technical Field

[0001] This utility model belongs to the field of chemical separation engineering, and in particular relates to an energy-saving distillation column with a spiral guide plate. Background Technology

[0002] A distillation column is a chemical equipment used to separate different components in a liquid mixture. It achieves efficient separation of the mixture through multiple partial vaporization and partial condensation processes, and is an indispensable key equipment in industries such as petrochemicals, fine chemicals, pharmaceuticals, and food processing.

[0003] Traditional distillation columns have relatively simple structures and lack real-time monitoring and feedback control functions for operating status. After the distillation process is completed, operators often find it difficult to determine whether the system is idling, which can easily lead to energy waste and increase the workload of manual monitoring.

[0004] Therefore, there is a particular need for an energy-saving distillation column with a spiral guide plate to solve the above problems. Summary of the Invention

[0005] To overcome the shortcomings of traditional distillation columns, such as simple structure, lack of real-time monitoring and feedback control functions, difficulty in timely judgment of idling status, easy energy waste and increased intensity of manual monitoring, this utility model provides an energy-saving distillation column with spiral guide plate.

[0006] This utility model is achieved through the following technical approach: A spiral guide plate energy-saving distillation column includes a support plate, an mounting plate, a distillation column body, an inlet pipe, a float valve tray, a guide plate, a reboiler, a drain pipe, a heavy collection pipe, a first gas pipe, a separator, a second gas pipe, a connecting pipe, a reflux pipe, a light collection pipe, a condenser, a controller, and an indicator component. The distillation column body is installed on the upper part of the support plate, one end of the inlet pipe is fixed to the middle of the distillation column body, multiple float valve trays are vertically arranged at a certain interval and fixed inside the distillation column body, and two parallel guide plates are fixed to the lower part of each float valve tray. The reboiler is installed on one side of the lower part of the support plate. The liquid pipe is fixed between the distillation column body and the reboiler. The heavy collection pipe is fixed to the right side of the reboiler. The first gas pipe is fixed between the reboiler and the distillation column body. The mounting plate is fixed to the top of the support plate, on which the separator is mounted. The second gas pipe is fixed between the distillation column body and the separator. The connecting pipe is fixed between the second pipe and the separator. The reflux pipe is fixed between the distillation column body and the separator. The light collection pipe is fixed to the left side of the reflux pipe. The condenser is mounted on the second gas pipe. The controller is mounted on the top of the support plate. The reboiler, separator, and condenser are all electrically connected to the controller. The indicator components are located on the drain pipe, the first gas pipe, the second gas pipe, and the reflux pipe.

[0007] As a further preferred embodiment, the prompting component includes a baffle, a flap, and a torsion spring. A baffle is rotatably installed on each of the drain pipe, the first air pipe, the second air pipe, and the return pipe. A flap is fixedly connected to both sides of each baffle. A torsion spring is sleeved on both sides of each baffle. The two ends of each torsion spring are fixedly connected to the drain pipe, the first air pipe, the second air pipe, or the return pipe and the corresponding flap, respectively.

[0008] As a further preferred embodiment, it also includes a support frame, a detector, and an alarm. A support frame is installed on the support plate and the light collection pipe, and a detector is installed on each support frame. The detection rods at the bottom of the two detectors extend into the heavy collection pipe and the light collection pipe, respectively. The alarm is installed on the top of the support plate and is located to the right of the controller. Both the detector and the alarm are electrically connected to the controller.

[0009] As a further preferred option, the other end of the inlet pipe is equipped with a flange.

[0010] As a further preferred option, the recollection tube passes through one of the support frames and is tightly fitted and fixed to the support frame.

[0011] As a further preferred option, warning signs are printed on both vertical surfaces of each flap.

[0012] Beneficial effects: 1. By setting up prompt components, the visual prompt function of the medium flow status in the pipeline can be realized. Operators can intuitively judge whether the pipeline is in operation by observing the vertical or horizontal status of the flap, accurately grasp the dynamics of the distillation process, effectively solve the blind spot of traditional equipment operation status identification, avoid system idling caused by misjudgment, improve safety management and operational controllability, reduce operation difficulty and monitoring intensity, thereby achieving the goal of energy saving and consumption reduction.

[0013] 2. Through the integrated design of support frame, detector and alarm, real-time monitoring and feedback control of the liquid level of heavy phase and light phase products can be realized. Once the distillation process is completed, the controller responds immediately and automatically triggers the alarm to remind the operator to deal with it in time. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial sectional view of the main body component of the distillation column of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the floating valve tower plate and guide plate components of this utility model.

[0017] Figure 4 This is a second partial cross-sectional view of the reflux pipe and light collection pipe components of this utility model.

[0018] Figure 5 This is a first partial cross-sectional view of the reflux pipe and light collection pipe components of this utility model.

[0019] The components are as follows: 1. Support plate; 101. Mounting plate; 2. Distillation column body; 3. Inlet pipe; 4. Floating valve tray; 5. Guide plate; 6. Reboiler; 7. Drain pipe; 8. Heavy collection pipe; 9. First gas pipe; 10. Separator; 11. Second gas pipe; 12. Connecting pipe; 13. Reflux pipe; 14. Light collection pipe; 15. Condenser; 16. Baffle; 17. Flip plate; 18. Torsion spring; 19. Support frame; 20. Detector; 21. Controller; 22. Alarm. Detailed Implementation

[0020] Example: An energy-saving distillation column with a spiral guide plate, such as Figures 1-5As shown, the system includes a support plate 1, a mounting plate 101, a distillation column body 2, an inlet pipe 3, a float valve tray 4, a guide plate 5, a reboiler 6, a drain pipe 7, a heavy collection pipe 8, a first gas pipe 9, a separator 10, a second gas pipe 11, a connecting pipe 12, a reflux pipe 13, a light collection pipe 14, a condenser 15, a controller 21, and an indicator assembly. The distillation column body 2 is bolted to the upper left of the support plate 1 in an interlocking manner. The rear end of the inlet pipe 3 is welded to the front of the middle of the distillation column body 2, responsible for conveying the mixed liquid to be separated into the distillation column body 2. The front end of the inlet pipe 3 is equipped with a flange for connecting to the external... The liquid supply system is detachably connected. Five floating valve trays 4 are vertically arranged and welded to the inside of the distillation column body 2 at a certain interval. Each floating valve tray 4 has two parallel guide plates 5 welded to its lower part. The guide plates 5 have a spiral structure, and their lower ends are close to the upper surface of the corresponding floating valve tray 4, which helps to guide the liquid flow and improve the mass transfer efficiency. The reboiler 6 is bolted to the lower right side of the support plate 1 and is responsible for providing heat to the distillation column body 2 to promote liquid vaporization. The drain pipe 7 is welded between the bottom end of the distillation column body 2 and the left side of the reboiler 6 and is responsible for sending the liquid into the reboiler 6. The heavy collection pipe 8 is welded to the reboiler 6. The right side of the distillation column 2 is responsible for collecting heavy phase products. The first gas pipe 9 is welded between the upper part of the reboiler 6 and the lower part of the distillation column body 2, and is responsible for sending the vaporized liquid back into the distillation column body 2. The mounting plate 101 is welded to the left rear of the top of the support plate 1, and the separator 10 is bolted to its upper end. The second gas pipe 11 is welded between the top of the distillation column body 2 and the top of the separator 10, and is responsible for introducing the vapor in the upper region of the distillation column body 2 into the separator 10 for separation. The connecting pipe 12 is welded between the middle of the second gas pipe 11 and the right side of the separator 10, and is responsible for quickly introducing the vapor in the second gas pipe 11 into the separator. In the apparatus 10, the reflux pipe 13 is welded between the upper end of the distillation column body 2 and the bottom end of the separator 10, and is responsible for returning part of the condensate back to the distillation column body 2 to maintain operational balance. The light phase collection pipe 14 is welded to the left side of the reflux pipe 13 and is responsible for collecting the light phase products. The condenser 15 is bolted to the second gas pipe 11 and is responsible for cooling and condensing the rising vapor to form liquid reflux. The controller 21 is bolted to the top right side of the support plate 1. The reboiler 6, the separator 10 and the condenser 15 are all electrically connected to the controller 21. The indicator components are set on the drain pipe 7, the first gas pipe 9, the second gas pipe 11 and the reflux pipe 13.

[0021] like Figure 4 and Figure 5As shown, the warning assembly includes a baffle 16, a flap 17, and a torsion spring 18. A baffle 16 is rotatably mounted on each of the drain pipe 7, the first air pipe 9, the second air pipe 11, and the return pipe 13. A flap 17 made of lightweight material (such as engineering plastic) is glued to both sides of each baffle 16. Brightly colored warning signs are printed on both vertical surfaces of each flap 17, which have a strong visual impact and can quickly attract the attention of operators. A torsion spring 18 is fitted on both sides of each baffle 16. The two ends of each torsion spring 18 are fixedly connected to the drain pipe 7, the first air pipe 9, the second air pipe 11 or the return pipe 13 and the corresponding flap 17, respectively, to provide a reset force for the flap 17. In the initial state, there is no liquid or vapor flow inside the drain pipe 7, the first air pipe 9, the second air pipe 11 and the return pipe 13, and the baffle 16 remains horizontal under the action of the torsion spring 18.

[0022] like Figure 1 and Figure 5 As shown, it also includes a support frame 19, a detector 20, and an alarm 22. The support plate 1 is bolted to each of the light collection pipes 14 with a support frame 19. The heavy collection pipe 8 passes through the lower support frame 19 and is tightly fitted and fixed to the support frame 19. The lower support frame 19 provides a second support for the heavy collection pipe 8 in addition to the reboiler 6, thereby enhancing its structural stability. Each support frame 19 is bolted to a detector 20. The detection rods at the bottom of the two detectors 20 extend into the heavy collection pipe 8 and the light collection pipe 14, respectively, to monitor the flow of liquid products in real time. The alarm 22 is bolted to the top right side of the support plate 1 and is located to the right of the controller 21. Both the detector 20 and the alarm 22 are electrically connected to the controller 21.

[0023] When using the distillation column, the mixed liquid to be separated is transported to the distillation column body 2 through the inlet pipe 3. Under the synergistic action of the floating valve plate 4 and the guide plate 5, the liquid is distributed layer by layer and flows downward. It is sent to the reboiler 6 through the drain pipe 7. The steam generated by heating and vaporization in the reboiler 6 returns to the distillation column body 2 through the first gas pipe 9 and passes through the floating valve plate 4 from bottom to top, realizing the full contact and mass transfer process of the gas and liquid phases. After the liquid is heated and separated in the reboiler 6, the heavy phase product is collected in the heavy collection pipe 8.

[0024] The steam passing through the floating valve tray 4 reaches the upper part of the distillation column body 2 and enters the separator 10 through the second gas pipe 11 for separation. During the process of entering the separator 10, the steam is cooled and condensed by the condenser 15. Part of the condensate is returned to the distillation column body 2 through the reflux pipe 13, and the remaining light phase products are discharged through the light collection pipe 14.

[0025] During operation, liquid or steam flows in the drain pipe 7, the first gas pipe 9, the second gas pipe 11 and the return pipe 13, impacting the corresponding baffle 16, causing it to overcome the resistance of the torsion spring 18 and rotate to a vertical position, thereby opening the channel and allowing the liquid or steam to pass smoothly. At this time, the flap 17 rotates to a horizontal position, and the warning sign on it is clearly visible, indicating that the pipeline is currently in operation.

[0026] After the mixed liquid distillation process is completed, there is no liquid or vapor flow in the drain pipe 7, the first gas pipe 9, the second gas pipe 11 and the return pipe 13. The baffle 16 loses its impact force and quickly returns to the initial horizontal closed state under the action of the torsion spring 18. The flap 17 also returns to the vertical direction, which directly reflects that the system is in a non-operating state, making it easy for operators to judge the equipment status and perform energy-saving shutdown operations.

[0027] Meanwhile, the detection rods of the two detectors 20 continuously monitor the flow of liquid products in the heavy collection tube 8 and the light collection tube 14. When there is no product flow in the heavy collection tube 8 and the light collection tube 14, the detector 20 generates an electrical signal and transmits it to the controller 21. The controller 21 determines whether the distillation process is complete based on this signal and immediately controls the alarm 22 to sound an alarm, reminding the operator to handle the situation in time and avoid energy waste.

Claims

1. A spiral guide plate energy-saving distillation column, characterized in that, It includes a support plate (1), a mounting plate (101), a distillation column body (2), a liquid inlet pipe (3), a float valve tray (4), a guide plate (5), a reboiler (6), a drain pipe (7), a heavy collection pipe (8), a first gas pipe (9), a separator (10), a second gas pipe (11), a connecting pipe (12), a reflux pipe (13), a light collection pipe (14), a condenser (15), a controller (21), and a prompting component, with the distillation column body (2) being the main component. Installed on the upper part of the support plate (1), one end of the inlet pipe (3) is fixed to the middle of the distillation column body (2), multiple floating valve trays (4) are vertically arranged at a certain interval and fixed inside the distillation column body (2), and two parallel guide plates (5) are fixed to the lower part of each floating valve tray (4), the reboiler (6) is installed on the lower side of the support plate (1), the drain pipe (7) is fixed between the distillation column body (2) and the reboiler (6), and the heavy collection pipe ( 8) The first gas pipe (9) is fixed to the right side of the reboiler (6) and the distillation column body (2). The mounting plate (101) is fixed to the top of the support plate (1) and a separator (10) is installed on it. The second gas pipe (11) is fixed to the distillation column body (2) and the separator (10). The connecting pipe (12) is fixed to the second gas pipe (11) and the separator (10). The reflux pipe (13) is fixed to the distillation column body. (2) Between the separator (10), the light collection pipe (14) is fixed to the left side of the return pipe (13), the condenser (15) is installed on the second gas pipe (11), the controller (21) is installed on the top of the support plate (1), the reboiler (6), the separator (10) and the condenser (15) are all electrically connected to the controller (21), and the prompting components are set on the drain pipe (7), the first gas pipe (9), the second gas pipe (11) and the return pipe (13).

2. The spiral guide plate energy-saving distillation column according to claim 1, characterized in that, The prompting component includes a baffle (16), a flap (17), and a torsion spring (18). A baffle (16) is rotatably installed on each of the drain pipe (7), the first air pipe (9), the second air pipe (11), and the return pipe (13). A flap (17) is fixedly connected to both sides of each baffle (16). A torsion spring (18) is sleeved on both sides of each baffle (16). The two ends of each torsion spring (18) are fixedly connected to the drain pipe (7), the first air pipe (9), the second air pipe (11), or the return pipe (13) and the corresponding flap (17), respectively.

3. The spiral guide plate energy-saving distillation column according to claim 2, characterized in that, It also includes a support frame (19), a detector (20) and an alarm (22). A support frame (19) is installed on the support plate (1) and the light collection pipe (14). A detector (20) is installed on each support frame (19). The detection rods at the bottom of the two detectors (20) extend into the heavy collection pipe (8) and the light collection pipe (14) respectively. The alarm (22) is installed on the top of the support plate (1) and is located to the right of the controller (21). The detector (20) and the alarm (22) are both electrically connected to the controller (21).

4. The spiral guide plate energy-saving distillation column according to claim 3, characterized in that, The other end of the inlet pipe (3) is equipped with a flange.

5. The spiral guide plate energy-saving distillation column according to claim 4, characterized in that, The heavy collection tube (8) passes through one of the support frames (19) and is tightly fitted and fixed to the support frame (19).

6. The spiral guide plate energy-saving distillation column according to claim 5, characterized in that, Warning signs are printed on both vertical surfaces of each flap (17).

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