CN214634118U

CN214634118U - A reflux drum for n-butanol rectification

Info

Publication number: CN214634118U
Application number: CN202120717236.2U
Authority: CN
Inventors: 高建明; 张明
Original assignee: Tianjin Diester Energy Saving Equipment Technology Co ltd
Current assignee: Tianjin Diester Energy Saving Equipment Technology Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-11-09
Anticipated expiration: 2031-04-09

Abstract

The utility model provides a reflux tank for n-butanol rectification, which comprises a tank body with a vertical structure, wherein the top of the tank body is provided with a gas outlet, the side wall of the tank body is provided with a feed inlet, the bottom of the tank body is provided with a water dividing bag and a discharge outlet, an inner cavity of the tank body is provided with an overflow plate which is concentrically arranged with the inner cavity of the tank body and has a ring column structure, the bottom of the overflow plate is connected with the bottom of the tank body, and a space which is used as an overflow area is reserved between the top of the overflow plate and the top of the tank body; the position of the feed inlet is lower than the top position of the overflow plate; the water dividing bag is positioned outside the area enclosed by the overflow plate and on one side far away from the feed inlet; the discharge hole is positioned in the area enclosed by the overflow plate. A return tank for n-butanol rectification have phase splitting effectual, can effectively reduce the disturbance of feeding to jar interior liquid, guarantee double-phase steady advantage.

Description

A reflux drum for n-butanol rectification

Technical Field

The utility model relates to a chemical industry equipment field especially relates to a reflux drum for n-butanol rectification.

Background

The reflux tank is equipment used for storing and distributing reflux parts into the rectifying tower after phase splitting of overhead components of the rectifying tower condensed by the condenser in the n-butyl alcohol rectifying process, and the vertical reflux tank has the advantage of small occupied area, but has the advantages of small two-phase separation space, short time and large kinetic energy carried by feeding, and can generate disturbance on liquid in the tank, cause fuzzy two-phase interfaces and influence the phase splitting effect. In addition, liquid is often wrapped up in the gas that the gas outlet of current backward flow jar flows, and especially when the feed inlet was located jar body liquid level below, the liquid that carries in the gas of gas outlet gas can be more, how to carry out separation processing to it, also is the problem that needs to solve.

Disclosure of Invention

The utility model discloses solve above technical problem, provide a divide looks effectual, can effectively reduce the disturbance of feeding to jar interior liquid, guarantee double-phase steady a backward flow jar that is used for n-butanol rectification.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a reflux tank for n-butanol rectification comprises a tank body with a vertical structure and a saddle for supporting the tank body; the top of the tank body is provided with an air outlet, the side wall of the tank body is provided with a feeding hole, and the bottom of the tank body is provided with a water distributing bag and a discharging hole; an overflow plate of an annular columnar structure concentrically arranged with the tank body is arranged in the inner cavity of the tank body, the bottom of the overflow plate is connected with the bottom of the tank body, and a space serving as an overflow area is reserved between the top of the overflow plate and the top of the tank body; the position of the feed inlet is lower than the top position of the overflow plate; the water dividing bag is positioned outside the area enclosed by the overflow plate and is far away from one side of the feed inlet; the discharge hole is positioned in the area enclosed by the overflow plate.

Preferably, the foam trapping wire mesh plate is arranged between the overflow plate and the inner wall of the tank body along the circumferential direction in the inner cavity of the tank body, and the foam trapping wire mesh plate is positioned above the feeding hole.

Preferably, the foam trapping wire mesh plate is provided with a phase separation filler, and the stacking height of the phase separation filler is lower than that of the overflow plate.

Preferably, the device also comprises a condensate separating assembly, wherein the condensate separating assembly comprises an outer shell, an inner shell arranged in the inner cavity of the outer shell and a condensate filler filled in the inner shell; the bottom of the shell is connected with the water diversion bag through a liquid return pipe, and a gas outlet is formed in the side wall of the shell; the top of inner shell with the gas outlet of the jar body is passed through the outlet duct and is connected, the bottom of inner shell is open structure, is provided with the supporting network, leave the cavity between inner shell and the shell.

Preferably, the upper end and the lower end of the side wall of the tank body are provided with liquid level meter interfaces for connecting a liquid level meter.

A advantage and positive effect that a reflux drum for n-butanol rectification have are:

(1) because the overflow plate is of an annular column structure, the feed liquid entering through the feed inlet can slowly flow around the annular column-shaped overflow plate in a dispersed manner, so that the impact during feeding is buffered, the disturbance of the feeding on the liquid in the tank is reduced, the retention time of the feed liquid is prolonged, the sedimentation of a heavy phase and the floating of a light phase are facilitated, and the phase splitting effect is good.

(2) And the foam trapping wire mesh plate and the filler between the tank body and the overflow plate can further optimize the phase splitting effect, and the foam trapping wire mesh plate has the liquid condensation effect on the heavy phase, so that the micro heavy phase liquid drops mixed in the feed liquid can be reduced to be condensed into large liquid drops, and the sedimentation of the large liquid drops is accelerated.

(3) The gas that carries liquid that the gas outlet was discharged then can carry out gas-liquid separation to the lime set separation subassembly, carries the gas of liquid and packs the separation back through the lime set, and the lime set flows out from the inner shell bottom and gets into the branch water drum through the liquid return pipe, and the gaseous phase then flows out from the inner shell bottom and gets into the cavity between inner shell and the shell, finally flows out by the gas outlet on the shell.

Drawings

FIG. 1 is a schematic diagram of the reflux drum for n-butanol rectification according to the present invention.

In the figure:

1. a tank body; 2. an air outlet; 3. a feed inlet; 4. dividing water into bags; 5. a discharge port; 6. an overflow plate; 7. a foam trapping wire mesh plate; 8. split-phase filling; 9. a condensate separation assembly; 10. a housing; 11. an inner shell; 12. a condensate filler; 13. a liquid return pipe; 14. a gas outlet; 15. a liquid level meter interface.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in figure 1, the reflux tank for n-butanol rectification comprises a tank body 1 with a vertical structure, a saddle for supporting the tank body 1 and a condensate separation assembly 9;

wherein, the top of the tank body 1 is provided with an air outlet 2, the side wall is provided with a feed inlet 3, the upper end and the lower end of the side wall are provided with liquid level meter interfaces 15 for connecting a liquid level meter, and the bottom is provided with a water diversion 4 bag and a discharge outlet 5; an overflow plate 6 with a circular column structure is concentrically arranged in the inner cavity of the tank body 1, the bottom of the overflow plate 6 is connected with the bottom of the tank body 1, and a space serving as an overflow area is reserved between the top of the overflow plate 6 and the top of the tank body 1; the position of the feed inlet 3 is lower than the top position of the overflow plate 6; the water dividing bag 4 is positioned outside the area enclosed by the overflow plates 6 and on one side far away from the feed inlet 3, and is blocked by the overflow plates 6, so that the disturbance of heavy phase on the water dividing bag 4 side during feeding can be effectively avoided; the discharge port 5 is positioned in an area enclosed by the overflow plate 6;

a foam trapping wire mesh plate 7 is arranged in the inner cavity of the tank body 1 between the overflow plate 6 and the inner wall of the tank body 1 along the circumferential direction, and the foam trapping wire mesh plate 7 is positioned above the feed port 3; the foam trapping wire mesh plate 7 is provided with a split-phase filler 8, and the stacking height of the split-phase filler 8 is lower than that of the overflow plate 6;

the condensate assembly 9 comprises an outer shell 10, an inner shell 11 arranged in the inner cavity of the outer shell 10 and a condensate filler 12 filled in the inner shell 11; the bottom of the shell 10 is connected with the water distribution bag 4 through a liquid return pipe 13, and a gas outlet 14 is arranged on the side wall of the shell 10; the top of the inner shell 11 is connected with the air outlet 2 of the tank body 1 through an air outlet pipe, the bottom of the inner shell 11 is of an open structure and is provided with a supporting net, and a cavity is reserved between the inner shell 11 and the outer shell 10.

The working process of the reflux tank for n-butyl alcohol rectification is as follows:

feed liquid gets into jar 1 internal through feed inlet 3, because overflow plate 6 is the column structure of circle, the feeding can 8 around the slow dispersed flow all around of column shape overflow plate 6, after the optimization phase splitting of mist trapping wire mesh board 7 and phase splitting filler, light looks through overflow plate 6 get into the region that the overflow plate encloses, adopt through discharge gate 5, heavy phase then descends to the lower floor, adopts through dividing water package 4. The gas carrying the liquid phase in the tank body 1 enters the condensate separating component 9, after being separated by the condensate filler 12, the condensate flows out from the bottom of the inner shell 11 and enters the water distributing bag 4 through the liquid return pipe 13, and the gas phase flows out from the bottom of the inner shell 11 and enters a cavity between the inner shell 11 and the outer shell 10, and finally flows out from the gas outlet 14 on the outer shell 10.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. A reflux tank for n-butanol rectification comprises a tank body (1) with a vertical structure and a saddle for supporting the tank body (1); the top of the jar body (1) is equipped with gas outlet (2), and the lateral wall is equipped with feed inlet (3), and the bottom is equipped with water drum (4) and discharge gate (5), its characterized in that: an overflow plate (6) with a ring-column-shaped structure concentrically arranged with the tank body (1) is arranged in the inner cavity of the tank body (1), the bottom of the overflow plate (6) is connected with the bottom of the tank body (1), and a space serving as an overflow area is reserved between the top of the overflow plate (6) and the top of the tank body (1); the position of the feed port (3) is lower than the top position of the overflow plate (6); the water dividing bag (4) is positioned outside the area surrounded by the overflow plates (6) and is far away from one side of the feed inlet (3); the discharge hole (5) is positioned in an area surrounded by the overflow plates (6).

2. Reflux drum for the rectification of n-butanol according to claim 1, characterized in that: the inner cavity of the tank body (1) is positioned between the overflow plate (6) and the inner wall of the tank body (1) along the circumferential direction, and a foam trapping wire mesh plate (7) is positioned above the feed port (3).

3. Reflux drum for the rectification of n-butanol according to claim 2, characterized in that: the foam trapping wire mesh plate (7) is provided with a phase separation filler (8), and the stacking height of the phase separation filler (8) is lower than that of the overflow plate (6).

4. Reflux drum for the rectification of n-butanol according to any one of claims 1 to 3, characterized in that: the device is characterized by also comprising a condensate separating assembly (9), wherein the condensate separating assembly (9) comprises an outer shell (10), an inner shell (11) arranged in the inner cavity of the outer shell (10) and a condensate filler (12) filled in the inner shell (11); the bottom of the shell (10) is connected with the water distributing drum (4) through a liquid return pipe (13), and a gas outlet (14) is formed in the side wall of the shell (10); the top of the inner shell (11) is connected with the gas outlet (2) of the tank body (1) through a gas outlet pipe, the bottom of the inner shell (11) is of an open structure and is provided with a supporting net, and a cavity is reserved between the inner shell (11) and the outer shell (10).

5. Reflux drum for the rectification of n-butanol according to claim 4, characterized in that: the upper end and the lower end of the side wall of the tank body (1) are provided with liquid level meter interfaces (15) used for connecting a liquid level meter.