CN215741846U

CN215741846U - Reation kettle condensation distillation plant

Info

Publication number: CN215741846U
Application number: CN202121421941.4U
Authority: CN
Inventors: 刘荣
Original assignee: Changzhou Watson Fine Chemical Co ltd
Current assignee: Changzhou Watson Fine Chemical Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-02-08
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a condensation distillation device of a reaction kettle, which comprises a high-temperature distillation reaction kettle, a receiving reaction kettle and a primary buffer tank, wherein an outlet of the high-temperature distillation reaction kettle is communicated with an inlet of the receiving reaction kettle through a high-temperature distillation pipe, the outlet of the receiving reaction kettle penetrates through the inlet of the primary buffer tank through a vacuum pipeline I and extends into an inner cavity of the primary buffer tank, the outlet of the primary buffer tank is connected with a high vacuum system through a vacuum pipeline II, a first baffle and a second baffle are arranged inside the receiving reaction kettle, the tops of the first baffle and the second baffle are respectively close to the inlet and the outlet of the receiving reaction kettle, the first baffle and the second baffle are arc-shaped cover plates with upward round concave surfaces and downward round convex surfaces, and a gap is formed between the bottoms of the first baffle and the second baffle and the inner wall surface of the receiving reaction kettle. The utility model solves the problem of vacuum pipeline blockage in the distillation process, greatly improves the distillation efficiency, effectively protects the vacuum pump, and prevents the vacuum pump from being damaged due to the suction of products into the vacuum pump.

Description

Reation kettle condensation distillation plant

Technical Field

The utility model relates to the technical field of condensation distillation of a reaction kettle, in particular to a condensation distillation device of the reaction kettle.

Background

The reaction kettle consists of a kettle body, a kettle cover, a jacket, a stirrer, a transmission device, a shaft seal device, a support and the like, the reaction kettle is a container for physical or chemical reaction, the heating, evaporation, cooling and low-speed and high-speed mixing functions required by the process are realized through the structural design and parameter configuration of the container, water vapor generated in the esterification reaction of polyhydric alcohol and polybasic acid in the reaction kettle or solid products in the reactor can form high-temperature solvent vapor in the reaction process, and the high-temperature solvent vapor is required to be condensed and cooled by reduced pressure distillation of products in the reaction kettle.

At present, reduced pressure distillation is a faster and better fractionation method different from normal pressure distillation, and under a certain vacuum condition, the boiling points of components in liquid and solid are reduced, so that the distillation rate is improved, and the production cost is reduced; but vacuum distillation is at the in-process of distillation, because steam temperature is higher, the easy condensation that appears unfreezes and blocks up the vacuum pipe to block up the vacuum pump body, cause its damage, and steam is under the effect of vacuum pump, and the high temperature steam that produces in the reation kettle can be taken into the required reaction unit of vacuum distillation, takes out from the reaction unit again, and this distillation process time is shorter, and high temperature steam has not fully reacted just to be taken out yet, easily causes unnecessary loss like this, is unfavorable for people's use.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a condensation distillation device for a reaction kettle, which solves the problem of vacuum pipeline blockage in the distillation process, greatly improves the distillation efficiency, and can effectively protect a vacuum pump body.

The technical scheme adopted by the utility model is as follows:

the utility model provides a reation kettle condensation distillation plant, it includes the high temperature distillation reation kettle, receive reation kettle and one-level buffer tank, the export of high temperature distillation reation kettle is linked together through the high temperature distillation tube with the import of receiving reation kettle, the import that the export of receiving reation kettle passed one-level buffer tank through vacuum pipeline I stretches into its inner chamber, the export of one-level buffer tank is connected with high vacuum system through vacuum pipeline II, receive inside first baffle and the second baffle of being equipped with of reation kettle, the top of first baffle and second baffle is close to the import and the exit setting of receiving reation kettle respectively, first baffle and second baffle are the round concave surface up, the arc shape apron that the round convex surface set up downwards, there is the clearance between the bottom of first baffle and second baffle and the internal face of receiving reation kettle.

The device can also comprise a second-stage buffer tank, the outlet of the first-stage buffer tank penetrates through the inlet of the second-stage buffer tank through a vacuum pipeline II to extend into the inner cavity of the second-stage buffer tank, and the outlet of the second-stage buffer tank is connected with a high vacuum system through a vacuum pipeline III.

The outside of the high-temperature distillation reaction kettle of the device is sleeved with a jacket for guiding in heat-conducting oil.

The outside of the receiving reaction kettle, the first-level buffer tank and the second-level buffer tank of the device is all sleeved with a jacket I for leading in refrigerating fluid.

The high vacuum system of the device is a vacuum pump.

A plurality of support columns are distributed at the top of the plate edge of the first baffle and the second baffle of the device at intervals, and the first baffle and the second baffle are fixed on the inner wall of the receiving reaction kettle through the support columns.

The clearance between the bottoms of the first baffle and the second baffle of the device and the inner wall surface of the receiving reaction kettle is more than 20 cm.

The first baffle and the second baffle of the device are made of stainless steel.

The utility model has the following beneficial effects: according to the utility model, the first baffle and the second baffle are respectively arranged in the receiving reaction kettle close to the inlet and the outlet, so that the high-temperature steam in the high-temperature distillation reaction kettle is conveniently blocked by the first baffle and the second baffle in the receiving reaction kettle, the outflow speed of the high-temperature steam is delayed, and the condensation efficiency is improved; meanwhile, steam after passing through the receiving reaction kettle still needs to be condensed through the two-stage buffer tanks, so that the problem of vacuum pipeline blockage in the distillation process is solved, the distillation efficiency is greatly improved, the vacuum pump can be effectively protected, and the vacuum pump is prevented from being damaged due to the fact that products are sucked into the vacuum pump.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is another schematic structural view of the present invention;

FIG. 3 is a schematic structural view of a first baffle of the present invention;

in the figure 1, a high-temperature distillation reaction kettle; 2. receiving a reaction kettle; 3. a primary buffer tank; 4. a secondary buffer tank; 5. a high temperature distillation tube; 6. a vacuum pipeline I; 7. a vacuum line II; 8. a vacuum line III; 9. a high vacuum system; 10. a first baffle plate; 11. a second baffle; 12. a jacket; 13. a jacket I; 14. and (4) a support column.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

as shown in figures 1-3, the utility model comprises a high temperature distillation reaction kettle 1, a receiving reaction kettle 2 and a first-stage buffer tank 3, wherein the outlet of the high temperature distillation reaction kettle 1 is communicated with the inlet of the receiving reaction kettle 2 through a high temperature distillation pipe 5, the outlet of the receiving reaction kettle 2 penetrates through the inlet of the first-stage buffer tank 3 through a vacuum pipeline I6 and extends into the inner cavity of the first-stage buffer tank 3, and the outlet of the first-stage buffer tank 3 is connected with a high vacuum system 9 through a vacuum pipeline II 7.

This device can also include second grade buffer tank 4, thereby the export of one-level buffer tank 3 passes the import of second grade buffer tank 4 through vacuum pipeline II 7 and stretches into in its inner chamber, the export of second grade buffer tank 4 is connected with high vacuum system 9 through vacuum pipeline III 8, wherein high vacuum system 9 is the vacuum pump, be convenient for like this take out the high-temperature steam in the high temperature distillation reation kettle 1 earlier and carry out abundant condensation in receiving reation kettle 2, if partial high-temperature steam has not reacted just by the vacuum pump in receiving reation kettle 2 yet, this part high-temperature steam then can take out in proper order and continue the condensation in one-level buffer tank 3 and the second grade buffer tank 4, ensure that the whole condensation water of high-temperature steam of taking out in the high temperature distillation reation kettle 1, like this also effectively protect the vacuum pump, prevent that high-temperature steam from absorbing in it, cause the vacuum pump to damage.

A first baffle 10 and a second baffle 11 are arranged inside a receiving reaction kettle 2 of the device, the tops of the first baffle 10 and the second baffle 11 are respectively arranged close to an inlet and an outlet of the receiving reaction kettle 2, the first baffle 10 and the second baffle 11 are arc-shaped cover plates with round concave surfaces upward and round convex surfaces downward, a gap exists between the bottoms of the first baffle 10 and the second baffle 11 and the inner wall surface of the receiving reaction kettle 2, so that high-temperature steam enters an inner cavity of the receiving reaction kettle 2 from the inlet of the receiving reaction kettle 2 for condensation, the high-temperature steam is firstly blocked by the first baffle 10 at the inlet in the condensation process, the high-temperature steam can form solids during condensation, the solids and part of the high-temperature steam which is carried along enter the inner cavity of the receiving reaction kettle 2 from the gap between the plate edge of the first baffle 10 and the inner wall surface of the receiving reaction kettle 2, and then the high-temperature steam flows to the outlet of the receiving reaction kettle 2 under the action of a vacuum pump, under the secondary of the exit by second baffle 10 blockked, flow out from the clearance department between the flange of second baffle 10 and the internal face of receiving reation kettle 2 at last and receive reation kettle 2 in, can delay the outflow velocity of high temperature steam like this, make the time of high temperature steam reaction in receiving reation kettle 2 increase, greatly reduced high temperature steam's temperature to the problem of vacuum line jam in the distillation process has been solved.

The jacket 12 for guiding heat-conducting oil is sleeved outside the high-temperature distillation reaction kettle 1 of the device, so that heat energy can be conveniently provided for the high-temperature distillation reaction kettle 1; the outside of the receiving reaction kettle 2, the first-level buffer tank 3 and the second-level buffer tank 4 of the device is sleeved with a jacket I13 for leading in refrigerating fluid.

A plurality of support columns 14 are distributed at intervals at the top of the plate edges of a first baffle plate 10 and a second baffle plate 11 of the device, and the first baffle plate 10 and the second baffle plate 11 are fixed on the inner wall of a receiving reaction kettle 2 through the support columns 14; gaps between the bottoms of the first baffle plate 10 and the second baffle plate 11 and the inner wall surface of the receiving reaction kettle 2 are larger than 20cm, so that solid formed after high-temperature steam is condensed can conveniently enter an inner cavity of the receiving reaction kettle 2, and part of high-temperature steam which is not condensed flows out; the first baffle 10 and the second baffle 11 are made of stainless steel, and have the advantages of high temperature resistance and corrosion resistance.

The using process of the utility model is as follows:

when in use, the high vacuum system 9 is started, high-temperature steam in the high-temperature distillation reaction kettle 1 is pumped into the receiving reaction kettle 2 for primary condensation reaction, when the high-temperature steam enters the inner cavity of the receiving reaction kettle 2 from the inlet of the receiving reaction kettle 2, the high-temperature steam is firstly blocked by the first baffle plate 10 at the inlet, solid and part of the high-temperature steam which is not reacted is easily formed after the high-temperature steam is condensed, then the high-temperature steam enters the inner cavity of the receiving reaction kettle 2 from the gap between the bottom of the first baffle plate 10 and the inner wall surface of the receiving reaction kettle 2, then the high-temperature steam continues to flow to the outlet of the receiving reaction kettle 2 under the action of the high vacuum system 9, and finally flows out of the receiving reaction kettle 2 from the gap between the bottom of the second baffle plate 10 and the inner wall surface of the receiving reaction kettle 2 under the secondary blocking of the outlet by the second baffle plate 10, so that the outflow speed of the high-temperature steam can be delayed, and the reaction time of the high-temperature steam in the receiving reaction kettle 2 can be prolonged, greatly reducing the temperature of the high-temperature steam.

If part high temperature steam has not reacted so yet and just is taken out by high vacuum system 9 in receiving reation kettle 2, this part high temperature steam then can take out in one-level buffer tank 3 and the second grade buffer tank 4 in proper order and continue to carry out the dual condensation again, ensures that the high temperature steam of taking out in high temperature distillation reation kettle 1 is whole to be condensed, has improved distillation efficiency like this greatly.

Other undescribed portions of the present invention are the same as the prior art.

Claims

1. The utility model provides a reation kettle condensation distillation plant, its characterized in that includes high temperature distillation reation kettle (1), receives reation kettle (2) and one-level buffer tank (3), the export of high temperature distillation reation kettle (1) is linked together through high temperature distillation pipe (5) and the import of receiving reation kettle (2), the import that the export of receiving reation kettle (2) passes one-level buffer tank (3) through vacuum pipeline I (6) stretches into its inner chamber, the export of one-level buffer tank (3) is connected with high vacuum system (9) through vacuum pipeline II (7), it is equipped with first baffle (10) and second baffle (11) to receive reation kettle (2) inside, the top of first baffle (10) and second baffle (11) is close to the import and the exit setting of receiving reation kettle (2) respectively, first baffle (10) and second baffle (11) are round concave surface up, The circular arc-shaped cover plate is arranged with the circular convex surface facing downwards, and a gap is formed between the bottoms of the first baffle (10) and the second baffle (11) and the inner wall surface of the receiving reaction kettle (2).

2. A still condensation distillation apparatus according to claim 1, wherein the apparatus comprises a secondary buffer tank (4), the outlet of said primary buffer tank (3) extends into the inner cavity of said secondary buffer tank (4) through the inlet of said secondary buffer tank (4) via vacuum line ii (7), and the outlet of said secondary buffer tank (4) is connected to a high vacuum system (9) via vacuum line iii (8).

3. The reactor condensation and distillation device as claimed in claim 1, wherein a jacket (12) for introducing heat transfer oil is sleeved outside the high temperature distillation reactor (1).

4. The reactor condensation and distillation device as claimed in claim 2, wherein the receiving reactor (2), the primary buffer tank (3) and the secondary buffer tank (4) are sleeved with a jacket I (13) for introducing refrigerating fluid.

5. A still condensation distillation apparatus according to claim 1, characterized in that said high vacuum system (9) is a vacuum pump.

6. The reactor condensation and distillation device as claimed in claim 1, wherein a plurality of support columns (14) are distributed at intervals on the tops of the plate edges of the first baffle plate (10) and the second baffle plate (11), and the first baffle plate (10) and the second baffle plate (11) are fixed on the inner wall of the receiving reactor (2) through the support columns (14).

7. A still condensation distillation apparatus according to claim 1, wherein the gap between the bottom of said first baffle (10) and said second baffle (11) and the inner wall of the receiving still (2) is greater than 20 cm.

8. A still further apparatus according to claim 1, wherein said first baffle (10) and said second baffle (11) are made of stainless steel.