WO2023060965A1 - Component in devolatilization tower - Google Patents

Abstract

A component in a devolatilization tower. The component in a devolatilization tower comprises a liquid storage device (1) and a plurality of flow guide members (2), which are located below the liquid storage device (1), wherein at least two rows of holes (3) for fluid outflow are formed in the middle of the liquid storage device (1), the flow guide members (2) comprise a flow guide wire mesh (4) and a plurality of rows of flow dividers (5), which are located above the flow guide wire mesh (4), and the flow guide members (2) are connected to the liquid storage device (1) by means of a plurality of connecting rods (6). In the component in the devolatilization tower, the flow guide members (2) match the liquid storage device (1), such that a fluid is firstly mixed and then shunted to the flow guide wire mesh (4) by means of the flow dividers (5) to be subjected to falling film. Flow distribution and mixing can be realized in the devolatilization tower, so as to ensure the devolatilization quality of the fluid and improve the devolatilization efficiency.

Description

A kind of devolatilization tower internal component technical field

The utility model relates to the technical field of a devolatilization tower, in particular to an internal component of a devolatilization tower.

Background technique

Devolatilization is an important link in chemical production, and its task is to transfer volatile substances from liquid phase to gas phase to be discharged from the fluid. In the devolatilization tower, a considerable gas-liquid interface is provided by falling film or flowing down the liquid column; when a single-layer falling film is used, since the fluid has been flowing downward, the time of the falling film is uncontrollable, and there is a devolatilization poor performance.

In the prior art, multi-layer grid plates are usually used to realize multi-layer falling film to solve the problem of poor devolatilization effect of fluids with short residence time, but there are still some fluids not devolatilized or devolatilized during use In the worst case, the quality of the fluid is not uniform. To ensure the efficiency and quality of the devolatilization, the fluid must be remixed and then devolatilized multiple times, which is costly and inefficient.

Therefore, in view of the above-mentioned problems, it is necessary for those skilled in the art to design a devolatilization tower internal component that can realize multiple splitting and mixing inside the devolatilization tower to ensure the devolatilization quality of the fluid and improve the devolatilization efficiency of.

Utility model content

The purpose of the utility model is to provide an internal component of a devolatilization tower.

In order to achieve the above object, the technical solution adopted by the utility model is: a kind of internal components of the devolatilization tower, including a liquid reservoir and several flow guides located below the liquid reservoir, the middle part of the liquid reservoir is provided with at least two rows of holes for the fluid to flow out, the deflector includes a deflector screen and several rows of diverters located above the deflector screen, and the deflector is connected to the liquid reservoir through several rod to connect.

Preferably, the liquid reservoir is a symmetrical box with an open upper end, and the box includes a square box or a tapered box.

Preferably, the liquid reservoir is a square box, and two adjacent rows of holes form a fluid outflow area, and a guide member is arranged below each fluid outflow area.

Preferably, the splitters are connected to the connecting rods, and the number of the splitters in each row is the same as the number of the connecting rods; the number of the holes in each row is the same as the number of the connecting rods.

Preferably, the middle part of the diverter is connected with the connecting rod.

Preferably, the connecting rod is in contact with the diverter and/or the connecting rod is inserted into the diverter.

Preferably, in each of the fluid outflow regions, a flow channel is provided below each of the holes, and the flow channel is inclined towards the direction of the guide member.

Preferably, when the flow pipe is inclined toward the direction of the flow guide, the angle formed between the flow pipe and the bottom of the liquid reservoir is 30°-75°; more preferably 30° ° to 60°; most preferably 45° to 60°.

Preferably, the liquid reservoir is a tapered box, the liquid reservoir is a hollow structure with both upper and lower ends open, and the width of the upper end of the liquid reservoir is greater than the width of the lower end.

Preferably, the splitter is used to divide the fluid flowing out of the reservoir into two branches, and the splitter includes an arc or a triangle.

Preferably, the diversion wire mesh includes several columns of grids, the number of columns of the grids is the same as the number of the splitters in each row, and the distance between the two ends of the splitters is the same as that of the grids. of the same width.

Preferably, both ends of the splitter are connected to the grid.

Preferably, the flow divider, the connecting rod and the guide wire mesh are integrally formed.

In the above, when the liquid reservoir is a square box, the principle of use of the internal member is: the fluid flows into the liquid reservoir, mixes and flows from the hole of the liquid reservoir to the flow pipe, because An included angle is formed between the circulation pipe and the bottom of the liquid reservoir, and the fluid flows toward the connecting rod in a direction close to the flow guide, and after the fluid flows from the connecting rod to the flow divider, the fluid is divided by the flow divider. There are two branches, and the falling film on the guide wire mesh realizes mixing in the devolatilization tower and then splitting.

In the above, when the liquid reservoir is a conical box body, the principle of use of the internal member is: the fluid flows into the liquid reservoir, and since the lower end of the liquid reservoir is narrow, the liquid outlet speed is relatively slow. The fluid can be mixed and then flow out from the lower end of the liquid reservoir to the splitter, the fluid is divided into two branches by the splitter, and the falling film falls on the guide wire mesh to realize mixing in the devolatilization tower before splitting.

The present application also claims a devolatilization tower, which includes a tower body, a liquid distributor arranged inside the tower body and several layers of internal components of the devolatilization tower as described above.

Due to the use of the above-mentioned technical solutions, the beneficial effects of the utility model are:

1. In this utility model, through the cooperation of the liquid storage device and the flow guide, the fluid is first mixed and then diverted to the falling film on the flow guide wire mesh through the flow divider, which can realize flow separation and mixing inside the devolatilization tower to ensure the flow of the fluid Devolatilization quality, improve devolatilization efficiency;

2. According to the arrangement of multiple internal components inside the devolatilization tower, the utility model can realize multiple mixing and splitting of fluids in the devolatilization tower, so as to ensure that all fluids can be devolatilized and improve the quality of devolatilization;

3. The utility model is simple in structure and convenient in use, and meets the needs of production and use.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions Some drawings are some implementations of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is a schematic diagram of the overall structure of Embodiment 1 of the present utility model.

Fig. 2 is an enlarged schematic diagram of part A in Fig. 1 of the present utility model.

Fig. 3 is a schematic diagram of the overall structure of the second embodiment of the utility model.

Among them, 1. liquid storage device; 2. flow guiding member; 3. hole; 4. flow guiding wire mesh; 5. diverter; 6. connecting rod; 7. circulation pipe;

Detailed ways

The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiment one

As shown in Figures 1 and 2, a devolatilization tower internal component includes a liquid reservoir 1 and a flow guide 2 located below the liquid reservoir, and the middle part of the liquid reservoir is provided with two rows for fluid Outflow holes 3, the flow guide includes a flow guide wire mesh 4 and several rows of diverters 5 located above the flow guide wire mesh, and the connection between the flow guide member and the liquid reservoir is carried out through several connecting rods 6 connect.

Further, the liquid reservoir is a symmetrical box with an open upper end.

Further, two adjacent rows of the holes form a fluid outflow area, and a flow guide is provided below each of the fluid outflow areas.

Further, the liquid reservoir is a square box, the flow guide is connected to the axis of the liquid reservoir, and the liquid reservoir is provided with two rows of holes arranged in parallel, and the holes in the two rows are uniform distributed on both sides of the axis.

Further, the diverters are connected to the connecting rods, and the number of the diverters in each row is the same as the number of the connecting rods; the number of the holes in each row is the same as the number of the connecting rods.

Further, the middle part of the diverter is connected with the connecting rod.

Further, the connecting rod is in contact with the diverter and/or the connecting rod is inserted into the diverter.

Further, a circulation channel 7 is arranged below each of the holes, and the communication channel is inclined toward the direction of the flow guide.

Further, when the flow pipe is inclined toward the direction of the flow guide, the angle formed between the flow pipe and the bottom of the liquid reservoir is 60°.

Further, the splitter is used to divide the fluid flowing out of the reservoir into two branches, and the splitter includes an arc or a triangle.

Further, the diversion wire mesh includes several columns of grids 8, the number of columns of the grids is the same as the number of the diverters in each row, and the distance between the two ends of the diverters is the same as that of the mesh. grid width is the same.

Further, both ends of the splitter are connected to the grid.

Further, the diverter, the connecting rod and the guide wire mesh are integrally formed.

In the above, when the liquid reservoir is a square box, the principle of use of the internal member is: the fluid flows into the liquid reservoir, mixes and flows from the hole of the liquid reservoir to the flow pipe, because An included angle is formed between the circulation pipe and the bottom of the liquid reservoir, and the fluid flows toward the connecting rod in a direction close to the flow guide, and after the fluid flows from the connecting rod to the flow divider, the fluid is divided by the flow divider. There are two branches, and the falling film on the guide wire mesh realizes mixing in the devolatilization tower and then splitting.

Embodiment two

This embodiment is carried out on the basis of the first embodiment above, and the similarities between this embodiment and the above embodiment will not be repeated.

As shown in FIG. 3 , preferably, the liquid reservoir is a conical box, the liquid reservoir is a hollow structure with both upper and lower ends open, and the width of the upper end of the liquid reservoir is greater than the width of the lower end.

In the above, when the liquid reservoir is a conical box body, the principle of use of the internal member is: the fluid flows into the liquid reservoir, and since the lower end of the liquid reservoir is narrow, the liquid outlet speed is relatively slow. The fluid can be mixed and then flow out from the lower end of the liquid reservoir to the splitter, the fluid is divided into two branches by the splitter, and the falling film falls on the guide wire mesh to realize mixing in the devolatilization tower before splitting.

Embodiment Three

This embodiment is carried out on the basis of the above-mentioned embodiment 1 or 2, and the similarities with the above-mentioned embodiment will not be repeated.

This embodiment relates to the protection of a devolatilization tower, including a tower body, a liquid distributor arranged inside the tower body and several layers of internal components of the devolatilization tower as described in Embodiment 1 or Embodiment 2.

Further, the tower body is cylindrical, square or rectangular;

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A devolatilization tower internal component is characterized in that it includes a liquid reservoir and several guides positioned below the liquid reservoir, and the middle part of the liquid reservoir is provided with at least two rows of holes for fluid outflow, The deflector includes a deflector screen and several rows of diverters located above the deflector screen, and the deflector is connected to the liquid reservoir through several connecting rods.
2. The internal component of the devolatilization tower according to claim 1, characterized in that, the liquid reservoir is a symmetrical box with an open upper end, and the box includes a square box or a conical box.
3. The internal component of a devolatilization tower according to claim 2, wherein the liquid reservoir is a square box, and two adjacent rows of holes form a fluid outflow area, and each of the fluid outflow One said flow guide is provided below the zone.
4. A kind of devolatilization tower internal member as claimed in claim 3, is characterized in that, described splitter is connected with described connecting rod, and the quantity of described splitter in each row is identical with the quantity of described connecting rod; The number of holes is the same as the number of connecting rods.
5. The internal component of a devolatilization tower according to claim 3, characterized in that, in each of the fluid outflow regions, a flow pipe is arranged below each of the holes, and the flow pipe is close to the The direction of the deflector is inclined.
6. The internal component of a devolatilization tower according to claim 5, wherein when the flow pipe is inclined toward the direction close to the flow guide, the formed between the flow pipe and the bottom of the liquid storage The included angle ranges from 30° to 75°.
7. The internal component of a devolatilization tower according to claim 2, wherein the liquid reservoir is a conical box, the liquid reservoir is a hollow structure with open upper and lower ends, and the liquid reservoir The width of the upper end is greater than the width of the lower end.
8. The internal component of a devolatilization tower according to claim 1, wherein the flow divider is used to divide the fluid flowing out of the liquid reservoir into two branches, and the flow divider comprises an arc or a triangle .
9. A kind of devolatilization tower internal member as claimed in claim 2, it is characterized in that, described diversion screen comprises several column grids, and the column number of described grid is identical with the quantity of the described splitter in each row, The distance between the two ends of the splitter is the same as the width of the grid.
10. A devolatilization tower is characterized in that it comprises a tower body, a liquid distributor arranged inside the tower body and several layers of the devolatilization tower internals as claimed in claim 1.

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