Anti-blocking condensing device for rectifying tower

Abstract

The anti-blocking condensing device comprises a condensing pipe and an exhaust port, the exhaust port is connected to the top of the condensing pipe, one side of the condensing pipe is connected with an air inlet pipe, one side of the condensing pipe is connected with a liquid extraction pipe, a condensing coil pipe is arranged in the liquid extraction pipe, an inner limiting bin is arranged in the liquid extraction pipe, and the inner limiting bin is connected with a liquid outlet of the condensing pipe. The inner limiting bin is arranged in the center of the condensing coil and arranged under the exhaust port, the condensing coil is arranged on the outer side of the inner limiting bin in a sleeving mode, the upper end and the lower end of the condensing coil are connected with a water outlet and a water inlet respectively, and the water inlet and the water outlet penetrate through the side wall of the condensing pipe. The inner limiting bin is arranged in the condensing coil, gas is guided to the condensing coil, contact between the gas and the condensing coil is promoted, the condensing effect is further improved, and the problem that in the prior art, contact between a gas phase and the heat exchange coil is little, and therefore cooling efficiency is low is solved.

Description

Technical Field

[0001] This utility model belongs to the field of distillation column technology, and specifically relates to an anti-clogging condensation device for distillation columns. Background Technology

[0002] Distillation columns are the most commonly used separation devices in chemical plants. A condenser is usually installed at the top of the distillation column to condense and cool the gas phase at the top of the column. After condensation, part of the liquid phase is returned to the distillation column as reflux to ensure the separation effect; part of the liquid phase can be collected as liquid product, and the non-condensable vapor after condensation is used as tail gas to enter the subsequent processing unit.

[0003] Chinese Patent CN218923828U discloses an anti-clogging condensation device for a distillation column, comprising a condenser, a heat exchange coil installed inside the condenser, a circulating water outlet fixed to the upper part of the heat exchange coil, a circulating water inlet fixed to the lower part of the condenser, a gas phase outlet at the top of the condenser, and a gas phase inlet and a condensate outlet at the bottom; a gas phase distribution plate installed at the bottom of the condenser, the gas phase distribution plate having an inlet connected to the gas phase inlet via an inlet pipe; and multiple guide ring plates with progressively increasing inner diameters evenly distributed on the lower inner wall of the condenser, the inner ring of each guide ring plate having a serrated structure, and a distance between the inner ring of the uppermost guide ring plate and the side wall of the heat exchange coil, thereby guiding and disturbing the gas phase located on the inner wall of the condenser.

[0004] However, the aforementioned patented gas has limited contact with the heat exchange coil, resulting in low cooling efficiency. Therefore, an anti-clogging condensation device for distillation columns is proposed. Utility Model Content

[0005] The purpose of this invention is to overcome the problem of low cooling efficiency due to insufficient contact between the gas phase and the heat exchange coil in the prior art. It provides an anti-clogging condensing device for distillation columns by setting an inner limiting chamber inside the condensing coil to restrict the upward trajectory of the gas, guide the gas to the condensing coil, promote contact between the two, and thus improve the condensation effect.

[0006] To achieve the above objectives, this utility model provides an anti-clogging condensation device for a distillation column, comprising a condenser tube and an exhaust port. The exhaust port is connected to the top of the condenser tube. An inlet pipe is connected to one side of the condenser tube, and a liquid extraction pipe is connected to one side of the condenser tube. A condenser coil is provided inside the liquid extraction pipe, and an inner limiting chamber is provided inside the liquid extraction pipe. The inner limiting chamber is located at the center of the condenser coil and directly below the exhaust port. The condenser coil is sleeved on the outside of the inner limiting chamber. An outlet and an inlet are respectively connected to the upper and lower ends of the condenser coil, and the inlet and outlet penetrate the side wall of the condenser tube.

[0007] Preferably, the intake pipe is connected to a distribution plate at one end of the condenser pipe.

[0008] Preferably, the liquid extraction pipe and the air inlet pipe are respectively located on both sides of the condenser pipe.

[0009] Preferably, the top of the air distribution plate is provided with air holes evenly distributed, and the air distribution plate is provided with partition rings evenly distributed inside, with the partition rings disposed between the air holes.

[0010] Preferably, the top of the exhaust port is provided with a perforated structure evenly distributed.

[0011] Preferably, the liquid extraction tube is located at one end of the condenser tube and is inclined downwards and located near the lowest end of the inner wall of the condenser tube.

[0012] Preferably, a demister is provided at the upper end of the condenser tube, and the demister is located directly below the exhaust port and directly above the inner limiting chamber.

[0013] The beneficial effects of this utility model are:

[0014] This invention solves the problem in the prior art where the gas phase has less contact with the heat exchange coil, resulting in lower cooling efficiency. By setting an inner limiting chamber inside the condensing coil, the rising trajectory of the gas is restricted and guided to the condensing coil, promoting contact between the two and thus improving the condensation effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the anti-clogging condensation device for distillation columns according to this utility model.

[0016] Figure 2 This is an internal structural diagram of the anti-clogging condensation device for a distillation column according to this utility model.

[0017] Figure 3 This is a structural diagram of the gas distribution plate in the anti-clogging condensation device for a distillation column according to this utility model.

[0018] In the diagram: 1. Condenser tube; 2. Exhaust port; 3. Inlet pipe; 4. Liquid extraction pipe; 5. Condenser coil; 6. Inner limit chamber; 7. Water outlet; 8. Water inlet; 9. Gas distribution plate; 10. Air hole; 11. Separator ring; 12. Demister. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, specific orientation structure, or operation. Therefore, they should not be construed as limitations on this utility model.

[0021] This embodiment provides an anti-clogging condensation device for a distillation column, including a condenser tube 1 and an exhaust port 2. The exhaust port 2 has a perforated structure evenly distributed on its top. The exhaust port 2 is connected to the top of the condenser tube 1. An air inlet pipe 3 is connected to one side of the condenser tube 1, and a liquid extraction pipe 4 is connected to one side of the condenser tube 1. A condenser coil 5 is installed inside the liquid extraction pipe 4, and an inner limiting chamber 6 is installed inside the liquid extraction pipe 4. The inner limiting chamber 6 is located at the center of the condenser coil 5 and is located directly below the exhaust port 2. The condenser coil 5 is sleeved on the outside of the inner limiting chamber 6. A water outlet 7 and a water inlet 8 are connected to the upper and lower ends of the condenser coil 5, respectively. The water inlet 8 and the water outlet 7 penetrate the side wall of the condenser tube 1. A demister 12 is installed at the upper end of the condenser tube 1. The demister 12 is located directly below the exhaust port 2 and directly above the inner limiting chamber 6.

[0022] In one embodiment, specifically, the air inlet pipe 3 is connected to a gas distribution plate 9 at one end of the condenser pipe 1. The top of the gas distribution plate 9 is provided with evenly distributed air holes 10, and the gas distribution plate 9 is provided with evenly distributed partition rings 11. The partition rings 11 are located between the air holes 10, and the gas is divided into small bubbles by the partition rings 11 and the air holes 10.

[0023] In one embodiment, specifically, the liquid extraction pipe 4 and the air inlet pipe 3 are respectively located on both sides of the condenser pipe 1.

[0024] In one embodiment, specifically, the liquid extraction tube 4 is located at one end of the condenser tube 1 and is inclined downwards and close to the lowest end of the inner wall of the condenser tube 1, so as to extract as much condensate as possible from the condenser tube 1.

[0025] The working process of the anti-clogging condenser for the distillation column in this embodiment is as follows: There is condensate in the condenser tube 1 with the liquid level in the middle of the condenser plate. The gas enters the gas distribution plate 9 through the gas inlet pipe 3. The gas is processed by the separator ring 11 and the gas hole 10, forming small bubbles that float in the condensate. As the small bubbles rise, they come into contact with the inner limiting chamber 6 and continue to float along the outer wall of the inner limiting chamber 6. Then the small bubbles come into contact with the condenser coil 5. Under the action of the condenser coil 5, the temperature of the small bubbles continues to decrease, and the small bubbles are divided into better bubbles. At this time, the temperature of the bubbles continues to decrease and is finally discharged through the exhaust port 2.

[0026] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An anti-blocking condensing device for a rectification column, characterized in that, Including condenser pipe (1) and exhaust port (2), exhaust port (2) is connected to the top of condenser pipe (1), one side of condenser pipe (1) is connected with air inlet pipe (3), one side of condenser pipe (1) is connected with liquid suction pipe (4), condensing coil (5) is arranged in liquid suction pipe (4), inner limiting bin (6) is arranged in liquid suction pipe (4), inner limiting bin (6) is arranged at the center of condensing coil (5), inner limiting bin (6) is arranged directly below exhaust port (2), condensing coil (5) is arranged outside inner limiting bin (6), water outlet (7) and water inlet (8) are connected to the upper and lower ends of condensing coil (5) respectively, water inlet (8) and water outlet (7) penetrate through the side wall of condenser pipe (1).

2. The anti-blocking condensing device for rectifying column according to claim 1, characterized in that, The air inlet pipe (3) is connected with the gas distribution disc (9) at one end of the condenser pipe (1).

3. The anti-blocking condensing apparatus for a rectifying column according to claim 1, wherein The liquid suction pipe (4) and the air inlet pipe (3) are arranged on both sides of the condenser pipe (1) respectively.

4. The anti-blocking condensing apparatus for a rectifying column according to claim 2, wherein The gas distribution disc (9) is uniformly distributed with gas holes (10) at the top, and is uniformly distributed with partition rings (11) inside.

5. The anti-blocking condensing apparatus for a rectifying column according to claim 1, wherein The top of the exhaust port (2) is uniformly distributed with hole structures.

6. The anti-blocking condensing apparatus for rectification columns according to claim 1, wherein The liquid suction pipe (4) is inclined downward at one end of the condenser pipe (1) and is arranged close to the lowermost end of the inner wall of the condenser pipe (1).

7. The anti-blocking condensing apparatus for distillation columns according to claim 1, wherein The inner upper end of the condenser pipe (1) is provided with a demister (12), which is arranged directly below the exhaust port (2) and directly above the inner limiting bin (6).

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