Distribution device of rectifying tower

Abstract

The utility model relates to the technical field of rectifying towers, in particular to a rectifying tower distribution device. According to the distribution device of the rectifying tower, the liquid inlet pipe is arranged at the side part of the tower body, and the flow guide assembly is arranged below the liquid inlet pipe, so that substances in reflux liquid can be fully contacted and react; a distributor is arranged below the flow guide assembly and comprises a distribution plate connected with the inner wall of the tower body, a plurality of through holes penetrating through the plate body are formed in the distribution plate, flow equalizing pipes are installed in the through holes, a plurality of drainage holes are formed in the side walls of the flow equalizing pipes, and a plurality of drainage feet are arranged at the bottoms of the flow equalizing pipes. Therefore, the reflux liquid can be uniformly distributed in the rectifying tower, the uniform distribution of the reflux liquid in the rectifying tower is fully ensured, and the rectifying efficiency and the product quality are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation towers, in particular to a distribution device for a distillation tower. Background Art

[0002] A distillation tower is a tower-type gas-liquid contact device for distillation. It utilizes the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, to transfer the light components (low boiling substances) in the liquid phase to the gas phase, and the heavy components (high boiling substances) in the gas phase to the liquid phase, thereby achieving the purpose of separation.

[0003] For example, patent number CN217067703U discloses a liquid distribution device for a distillation tower, including a distillation tower, a liquid inlet pipe is fixedly arranged on the upper right side of the distillation tower, a motor is arranged on the upper side of the liquid inlet pipe, a transmission mechanism is arranged on the upper part of the distillation tower, a lifting plate is arranged on the lower side of the transmission mechanism, a fixed cylinder is arranged on the outer sleeve of the lifting plate, a plurality of one-way valves are evenly distributed in the fixed cylinder, and a push rod is arranged on the upper side of the one-way valve. The transmission mechanism is driven by the motor to move, and the transmission mechanism drives the lifting plate to move up and down. When the lifting plate rises, the contact between the side wall of the lifting plate and the liquid outlet pipe is cancelled, and the liquid inlet pipe transports liquid into the fixed cylinder. When the lifting plate descends, the push rod drives the water stopper to descend, and the contact between the water stopper and the water stop ring is cancelled, so that the liquid is uniformly discharged to the lower side through the plurality of liquid outlet pipes, thereby increasing the contact area between the gas-liquid two-phase and improving the distillation efficiency. However, the distribution device has uneven distribution of reflux liquid, and the operation and control are cumbersome and complicated, and it is not easy to efficiently obtain stable quality products. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and provide a distillation tower distribution device.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a distillation tower distribution device, including a tower body, a liquid inlet pipe is provided on the side of the tower body, a guide assembly is provided below the liquid inlet pipe, a distributor is provided below the guide assembly, the distributor includes a distribution plate connected to the inner wall of the tower body, a plurality of through holes penetrating the plate body are provided on the distribution plate, a flow equalizing pipe is installed in the through hole, a plurality of drainage holes are provided on the side wall of the flow equalizing pipe, and a plurality of drainage feet are provided at the bottom of the flow equalizing pipe.

[0006] Furthermore, the guide assembly includes a plurality of guide plates, and the guide plates are arranged to be inclined downward.

[0007] Furthermore, one end of the guide plate is connected to the inner wall of the tower body.

[0008] Furthermore, the end of the flow equalizing tube extending to the tube opening above the distribution plate is arranged in a flush shape.

[0009] Furthermore, the drainage hole gradually widens from bottom to top.

[0010] Furthermore, the drainage holes are in the shape of inverted isosceles triangle holes and are evenly distributed in the middle of the flow equalizing tube, with the sharp corners of the drainage holes facing downward.

[0011] Furthermore, the drainage pins are cone-shaped, and the number of the drainage pins is the same as the number of the drainage holes.

[0012] Furthermore, the outer wall of the drainage foot corresponds to the drainage hole in the vertical direction.

[0013] Furthermore, an air outlet pipe is provided at the upper part of the tower body.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The present application provides a liquid inlet pipe on the side of the tower body, and a guide assembly is provided below the liquid inlet pipe, so that the substances in the reflux liquid can fully contact and react; a distributor is provided below the guide assembly, and the distributor includes a distribution plate connected to the inner wall of the tower body, and the distribution plate is provided with a plurality of through holes penetrating the plate body, and a flow equalizing pipe is installed in the through hole, and a plurality of drainage holes are provided on the side wall of the flow equalizing pipe, and a plurality of drainage feet are provided at the bottom of the flow equalizing pipe, so that the reflux liquid can be evenly distributed in the distillation tower, which fully ensures the uniform distribution of the reflux liquid in the distillation tower and greatly improves the distillation efficiency and product quality.

[0016] 2. The present application has a simple structure and a reasonable design. By arranging drainage holes and drainage feet on the flow equalizing pipe, the reflux liquid is guided from the drainage holes to the drainage feet to flow out, thereby achieving the effect of dispersing the reflux liquid without affecting the upward flow and discharge of the rising gas in the distillation tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the distillation tower distribution device in the preferred embodiment of the utility model;

[0018] Figure 2 A top view of a distribution plate in a preferred embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the flow equalizing tube in the preferred embodiment of the utility model.

[0020] Figure numerals: 1, tower body; 2, liquid inlet pipe; 3, guide assembly; 4, distribution plate; 5, flow equalizing pipe; 6, drainage hole; 7, drainage foot; 8, air outlet pipe. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described 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.

[0022] Reference Figure 1-Figure 3 As shown, a preferred embodiment of the utility model is a distillation tower distribution device, comprising a tower body 1, a liquid inlet pipe 2 is provided on the side of the tower body 1, and a guide component 3 is provided below the liquid inlet pipe 2, so that the substances in the reflux liquid can fully contact and react; a distributor is provided below the guide component 3, and the distributor includes a distribution plate 4 connected to the inner wall of the tower body 1, and a plurality of through holes penetrating the plate body are provided on the distribution plate 4, and a flow equalizing pipe 5 is installed in the through hole, and a plurality of drainage holes 6 are provided on the side wall of the flow equalizing pipe 5, and a plurality of drainage feet 7 are provided at the bottom of the flow equalizing pipe 5, so that the reflux liquid can be evenly distributed in the distillation tower, which fully ensures the uniform distribution of the reflux liquid in the distillation tower and greatly improves the distillation efficiency and product quality.

[0023] As a preferred embodiment of the utility model, it may also have the following additional technical features: the guide assembly 3 includes a plurality of guide plates, which are arranged to tilt downward, and one end of the guide plate is connected to the inner wall of the tower body 1. Thus, the substances in the reflux liquid can fully contact and react, which can accelerate the reaction process.

[0024] In this embodiment, the end of the flow equalizing tube 5 extending to the top of the distribution plate 4 is arranged flush.

[0025] In this embodiment, the drainage hole 6 gradually widens from bottom to top, so that it can present different flow rates according to the height of the liquid level, with the higher the height, the greater the flow rate, so as to meet the reflux demand.

[0026] In this embodiment, the drainage holes 6 are in the shape of inverted isosceles triangles and are evenly distributed in the middle of the flow equalizing tube, with the sharp corners of the drainage holes 6 facing downward. As a result, the width of the drainage holes 6 increases as the liquid level in the distribution plate 4 increases, and the flow rate also increases; on the contrary, when the liquid level in the distribution plate 4 decreases, the width of the corresponding drainage holes 6 decreases to maintain a stable liquid level.

[0027] In this embodiment, the drainage foot 7 is conical, and the number of the drainage foot 7 is the same as the number of the drainage holes 6; and the outer wall of the drainage foot 7 corresponds to the drainage hole 6 in the vertical direction. In this way, the reflux liquid can be evenly dispersed, and the reflux liquid is guided from the drainage hole 6 to the drainage foot 7 to flow out, so as to achieve the effect of dispersing the reflux liquid without affecting the upward flow and discharge of the rising gas in the distillation tower.

[0028] In this embodiment, an air outlet pipe 8 is provided at the upper part of the tower body 1, so that low-boiling substances are discharged along with the gas phase.

[0029] The working principle of the utility model is as follows: the reflux liquid is injected into the tower body through the liquid inlet pipe 2, and the reflux liquid fully contacts and reacts with the heat in the tower body under the action of the guide component 3; and flows into the distributor through the guide component 3, and under the action of the drainage holes 6 and drainage feet 7 of the flow equalizing pipe 5 on the distribution plate 4, the reflux liquid can be evenly distributed in the distillation tower, which fully ensures the uniform distribution of the reflux liquid in the distillation tower, and greatly improves the distillation efficiency and product quality.

[0030] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A distillation tower distribution device, characterized in that: It includes a tower body, a liquid inlet pipe is provided on the side of the tower body, a guide assembly is provided below the liquid inlet pipe, a distributor is provided below the guide assembly, the distributor includes a distribution plate connected to the inner wall of the tower body, the distribution plate is provided with a plurality of through holes penetrating the plate body, a flow equalizing pipe is installed in the through hole, a plurality of drainage holes are provided on the side wall of the flow equalizing pipe, and a plurality of drainage feet are provided at the bottom of the flow equalizing pipe.

2. The distillation tower distribution device according to claim 1, characterized in that: The guide assembly includes a plurality of guide plates, and the guide plates are arranged to be inclined downward.

3. The distillation tower distribution device according to claim 2, characterized in that: One end of the guide plate is connected to the inner wall of the tower body.

4. The distillation tower distribution device according to claim 1, characterized in that: The end of the pipe opening of the flow equalizing pipe extending to the top of the distribution plate is arranged flush.

5. The distillation tower distribution device according to claim 1, characterized in that: The drainage hole gradually widens from bottom to top.

6. The distillation tower distribution device according to claim 5, characterized in that: The drainage holes are in the shape of inverted isosceles triangle holes and are evenly distributed in the middle of the flow equalizing tube, with the sharp corners of the drainage holes facing downwards.

7. The distillation tower distribution device according to claim 1, characterized in that: The drainage pins are cone-shaped, and the number of the drainage pins is the same as the number of the drainage holes.

8. The distillation tower distribution device according to claim 7, characterized in that: The outer side wall of the drainage foot corresponds to the drainage hole in the vertical direction.

9. The distillation tower distribution device according to claim 1, characterized in that: An air outlet pipe is arranged on the upper part of the tower body.

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