Damping pendulum type liquid uniform distributor for rectification

Abstract

The utility model discloses a damping pendulum type liquid uniform distributor for rectification, which belongs to the technical field of rectification and comprises a liquid collecting tray, a pendulum mechanism and a liquid distributing tray, a vent hole pipe is arranged on the liquid collecting tray, a liquid falling pipe is arranged in the center of the liquid collecting tray, and rectangular liquid flow holes are uniformly distributed on the wall of the liquid falling pipe. The pendulum mechanism comprises a pendulum supporting plate, a pendulum upper ball, a pendulum supporting rod and a clock pendant, the pendulum upper ball is arranged on the pendulum supporting plate and connected with the pendulum supporting rod, the mode that horizontal and uniform distribution is kept generally depending on mechanical matching connection is broken through, a split structure is adopted, the gravity center of the liquid distribution disc is controlled in the natural state in a pendulum mode, and therefore the liquid distribution disc is more uniform in distribution. By means of the design, the requirements for machining and mounting precision are reduced, even if slight deviation exists in actual operation, automatic adjustment can be conducted through the pendulum mechanism, it is ensured that liquid is evenly distributed, the wall flow and channeling phenomena are effectively avoided, and the rectification efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation, in particular to a damping pendulum type liquid distributor for distillation. Background Art

[0002] The reflux liquid distributor is a device located at the top of the distillation tower, which is used to evenly distribute the raw liquid to multiple levels of the tower to ensure that the liquid in the tower can fully contact the filler, thereby realizing mass transfer and heat transfer. An excellent reflux liquid distributor can not only ensure that the chemical reaction and separation process in the tower can be carried out evenly throughout the tower height, but also improve the efficiency of the reaction and separation, thereby reducing production costs. It is the most sophisticated equipment in the distillation process. Their design, installation and use play a vital role in optimizing the production process and improving product quality.

[0003] At present, the common types of reflux liquid distributors are tube type, trough type, disc type and combined type according to their structural shapes. Their common disadvantage is that they all adopt an integrated structure, which requires sufficient processing accuracy and very high installation accuracy of horizontality and verticality to ensure the uniformity of the liquid flowing vertically by gravity. This is not easy to achieve in actual production, and often causes uneven distribution of reflux liquid, resulting in wall flow and channel flow, which greatly reduces the quality of distillation. Therefore, designing a reflux liquid distributor that can reduce processing and installation accuracy is of great significance to distillation production. Utility Model Content

[0004] The utility model aims to solve the problems of uneven liquid distribution, high requirements for processing and installation precision, and possible wall flow and channel flow in the reflux liquid distributor in the prior art, and proposes a damped pendulum liquid distributor for distillation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A damped pendulum-type liquid distributor for distillation comprises a liquid collecting plate, a pendulum mechanism and a liquid distributing plate. The liquid collecting plate is provided with a vent pipe, a liquid drop pipe is installed in the center, and rectangular liquid flow holes are evenly distributed on the wall of the liquid drop pipe. The pendulum mechanism comprises a pendulum support plate, a pendulum upper ball, a pendulum support rod and a pendulum pendant. The pendulum upper ball is placed on the pendulum support plate and connected to the pendulum support rod. The liquid distributing plate is connected to the pendulum pendulum through the pendulum support rod and is provided with a plurality of reflux liquid nozzles and a fan-shaped air flow hole wall.

[0007] Preferably, the liquid collecting tray is connected to the inner wall of the distillation tower by mechanical cooperation without the need for bolt connection.

[0008] Preferably, the reflux liquid nozzle on the liquid distribution tray adopts a downward flanging process to form a serrated shape.

[0009] Preferably, six rectangular liquid flow holes are evenly distributed on the liquid dropper.

[0010] Preferably, the pendulum support plate has rounded corners to smoothly form linear contact with the ball on the pendulum.

[0011] Preferably, the liquid distribution tray evenly distributes the reflux liquid through the reflux liquid nozzle, and the center of gravity is corrected by the bell weight to ensure that the liquid distribution tray is in a natural vertical state.

[0012] Preferably, a plurality of fan-shaped air flow hole walls are symmetrically and evenly distributed on the liquid distribution plate to ensure smooth rising of steam.

[0013] Compared with the prior art, the utility model provides a damped pendulum-type liquid distributor for distillation, which has the following beneficial effects.

[0014] 1. The utility model breaks the usual practice of relying on mechanical connection to maintain uniform water distribution, and adopts a split structure to control the center of gravity of the liquid distribution plate in a natural state in a pendulum manner, thereby ensuring the uniformity of water distribution. This design reduces the requirements for processing and installation accuracy. Even if there is a slight deviation in actual operation, it can be automatically adjusted through the pendulum mechanism to ensure uniform distribution of liquid, effectively avoid wall flow and channel flow, and improve distillation efficiency and product quality.

[0015] 2. The utility model provides a pendulum-type structure so that the whole machine has a certain damping performance to resist the impact of liquid droplets or liquid flows, and can be dynamically adjusted within a small range. This design enhances the adaptability of the equipment under different operating conditions and ensures that the liquid distribution plate can maintain a stable uniform distribution state under liquid flow fluctuations or gas disturbances, thereby improving the reliability of the equipment and the stability of operation.

[0016] 3. The utility model has a compact and reasonable structure, which fully considers the uniformity of the reflux liquid and the smoothness of the rising gas, reduces the human factors in the construction, and ensures that the steam can rise smoothly through the symmetrical and evenly distributed fan-shaped air flow hole wall design on the liquid distribution plate, reduces the resistance of the gas flow, thereby improving the mass transfer and heat transfer efficiency of the distillation process, and significantly improving the overall performance of the distillation tower.

[0017] 4. The utility model has a downwardly turned edge of the reflux liquid nozzle, which is beneficial to the downward flow of the reflux liquid. The serrated design of the lower turned edge overcomes the surface tension of the liquid, ensuring that the liquid can be evenly distributed on each layer of filler in the tower, avoiding liquid accumulation or poor flow. Such a design not only improves the uniformity of liquid distribution, but also reduces the frequency of maintenance and cleaning, prolongs the service life of the equipment, and further reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is the front view of the liquid distributor installed in the distillation tower;

[0019] Figure 2 It is a top view of the liquid distributor installed in the distillation tower;

[0020] Figure 3 This is a top view of the liquid distributor installed in the distillation tower.

[0021] In the figure:

[0022] 1. Liquid collecting tray; 2. Vent pipe; 3. Liquid drop pipe; 4. Rectangular liquid flow hole; 5. Pendulum support plate; 6. Pendulum upper ball; 7. Side wall of reflux liquid collecting tray; 8. Vent pipe upper cover; 9. Upper cover support rod; 10. Liquid distribution tray; 11. Side wall of liquid distribution tray; 12. Pendant; 13. Pendulum support rod; 14. Fan-shaped air flow hole wall; 15. Reflux liquid nozzle; 16. Reflux liquid high-level overflow hole; 17. Distillation tower. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-Figure 3 A damped pendulum liquid distributor for distillation is mainly composed of a liquid collecting plate 1, a pendulum mechanism and a liquid distribution plate 10. The liquid collecting plate 1 is provided with a vent pipe 2 to ensure the ventilation requirements of the liquid and gas during the separation process. The liquid downpipe 3 is centrally installed on the liquid collecting plate 1, and rectangular liquid flow holes 4 are evenly distributed on its wall to ensure that the liquid flows out evenly downward. The pendulum mechanism is composed of a pendulum support plate 5, a pendulum upper ball 6, a pendulum support rod 13 and a pendulum pendant 12. The pendulum upper ball 6 is placed on the pendulum support plate 5 and connected to the pendulum support rod 13. The liquid distribution plate 10 is connected to the pendulum pendant 12 through the pendulum support rod 13. A plurality of reflux liquid nozzles 15 and a fan-shaped air flow hole wall 14 are provided to ensure the uniform distribution of the reflux liquid and the smooth flow of the airflow.

[0025] The liquid collecting tray 1 is connected to the inner wall of the distillation tower 17 by mechanical cooperation, which avoids the complexity and inconvenience of bolt connection, ensures quick and convenient installation, and improves the stability and service life of the equipment.

[0026] The return liquid nozzle 15 on the liquid distribution tray 10 is designed with a downward flanging process to form a serrated structure, which helps to overcome the surface tension of the liquid, ensure that the liquid can flow downward evenly, and enhance the stability of the liquid flow to prevent liquid accumulation at the nozzle.

[0027] Six rectangular liquid flow holes 4 are symmetrically and evenly distributed on the wall of the liquid drop pipe 3, ensuring the uniform outflow of liquid at different positions and avoiding the uneven distribution problem caused by concentrated flow of liquid.

[0028] The pendulum support plate 5 adopts a rounded corner design to smoothly form a linear contact with the ball 6 on the pendulum, thereby reducing friction and wear and enhancing the flexibility and stability of the pendulum mechanism.

[0029] The liquid distribution tray 10 ensures that the reflux liquid can be evenly distributed by setting up multiple reflux liquid nozzles 15. At the same time, the bell pendant 12 is responsible for correcting the center of gravity of the liquid distribution tray to ensure that it is always in a natural vertical state. Even when disturbed by external forces, it can quickly return to a balanced state to ensure the uniformity of liquid distribution.

[0030] The liquid distribution plate 10 is symmetrically and evenly provided with a plurality of fan-shaped air flow hole walls 14, which ensures that the steam can smoothly rise and pass through the liquid distribution plate without being disturbed by the liquid distribution. By optimizing the air flow path, the resistance to the rising of the steam is reduced, and the efficiency of the distillation process is improved.

[0031] During operation, the reflux liquid first flows into the liquid collecting tray 1, and the ventilation requirements of the liquid and gas in the separation process are ensured through the vent pipe 2. A plurality of rectangular liquid flow holes 4 are evenly distributed on the liquid drop pipe 3 installed in the center of the liquid collecting tray. These liquid flow holes ensure that the liquid flows out evenly downward. The pendulum mechanism consists of a pendulum support plate 5, a pendulum upper ball 6, a pendulum support rod 13 and a pendulum 12. The pendulum upper ball is placed on the pendulum support plate and connected to the pendulum support rod. The pendulum support rod is connected to the liquid distribution tray 10 and the pendulum to ensure that the liquid distribution tray can automatically remain vertical in a natural state, thereby ensuring uniform distribution of the liquid. The liquid distribution tray is connected to the pendulum support rod and is provided with a plurality of reflux liquid nozzles 15 and a fan-shaped air flow hole wall 14. The reflux liquid nozzle 15 adopts a lower flanging process to form a serrated structure, which helps to overcome the surface tension of the liquid and ensure that the liquid flows evenly to the bottom of the tray. The liquid distribution plate 10 has a plurality of fan-shaped airflow hole walls 14 symmetrically distributed on it, ensuring that the steam can rise smoothly and pass through the liquid distribution plate without being disturbed by the liquid distribution. The optimized airflow path reduces the resistance of the steam rise and improves the efficiency of the distillation process. The design of the pendulum mechanism gives the equipment a certain damping performance, which can resist the impact of droplets or liquid flows and perform dynamic adjustment within a small range to ensure that the liquid distribution plate can always maintain a uniform liquid distribution state under various operating conditions. Through the above design, the utility model effectively solves the problems of uneven liquid distribution in the reflux liquid distributor in the prior art, high requirements for processing and installation precision, and possible wall flow and channel flow, and significantly improves the efficiency of the distillation process and product quality.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A damped pendulum liquid distributor for distillation, characterized in that: The invention comprises a liquid collecting plate (1), a pendulum mechanism and a liquid distributing plate (10). The liquid collecting plate (1) is provided with a vent pipe (2), a liquid drop pipe (3) is installed in the center, and rectangular liquid flow holes (4) are evenly distributed on the wall of the liquid drop pipe. The pendulum mechanism comprises a pendulum support plate (5), a pendulum upper ball (6), a pendulum support rod (13) and a pendulum pendant (12). The pendulum upper ball (6) is placed on the pendulum support plate (5) and connected to the pendulum support rod (13). The liquid distributing plate (10) is connected to the pendulum pendant (12) through the pendulum support rod (13), and is provided with a plurality of reflux liquid nozzles (15) and a fan-shaped air flow hole wall (14).

2. The damped pendulum liquid distributor for distillation according to claim 1, characterized in that: The liquid collecting tray (1) is connected to the inner wall of the distillation tower (17) by mechanical cooperation, without the need for bolt connection.

3. The damped pendulum liquid distributor for distillation according to claim 1, characterized in that: The reflux liquid nozzle (15) on the liquid distribution plate (10) adopts a downward flanging process to form a serrated shape.

4. The damped pendulum liquid distributor for distillation according to claim 1, characterized in that: The liquid drop pipe (3) is evenly distributed with 6 rectangular liquid flow holes (4).

5. The damped pendulum liquid distributor for distillation according to claim 1, characterized in that: The pendulum support plate (5) has rounded corners and smoothly forms linear contact with the ball (6) on the pendulum.

6. The damped pendulum liquid distributor for distillation according to claim 1, characterized in that: The liquid distribution plate (10) evenly distributes the reflux liquid through the reflux liquid nozzle (15), and the center of gravity is corrected by the bell weight (12), so as to ensure that the liquid distribution plate (10) is in a natural vertical state.

7. The damped pendulum liquid distributor for distillation according to claim 1, characterized in that: The liquid distribution plate (10) is symmetrically and evenly distributed with a plurality of fan-shaped air flow hole walls (14) to ensure smooth steam rise.

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