CN216605247U

CN216605247U - Esterification kettle for preventing reverse reaction

Info

Publication number: CN216605247U
Application number: CN202122845914.6U
Authority: CN
Inventors: 宁继; 刘斌; 胡萌; 谢水郑; 肖波
Original assignee: Guangdong Guansheng New Material Co ltd
Current assignee: Guangdong Guansheng New Material Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-05-27
Anticipated expiration: 2031-11-19

Abstract

The utility model relates to an esterification kettle for preventing reverse reaction, which comprises a kettle body and a water distribution device, wherein the top of the kettle body is provided with an arc surface, the center position of the arc surface is provided with an air lifting port, and the air lifting port is connected with the input end of the water distribution device; the water diversion device comprises an oil-water separation tank, an upper oil storage tank and a lower water storage tank; the upper end of the side wall of the oil-water separation tank is communicated with the upper-layer oil storage tank through an oil discharge pipe, and the bottom of the oil-water separation tank is communicated with the lower-layer water storage tank through a drain pipe; the middle part of the oil-water separation tank is horizontally provided with a liquid inlet pipe which is communicated with the air lifting port, the oil-water separation tank separates oil and water in the oil-water mixed liquid, and the liquid inlet pipe is positioned at the height of an oil-water interface in the oil-water separation tank. The utility model deflects the position of the gas lifting port to the central point of the arc surface, and communicates the gas lifting port with the input end of the water distribution device, thereby solving the problems of long reaction time, low efficiency and high energy consumption in the traditional esterification kettle, which are caused by the easy reverse reaction.

Description

Esterification kettle for preventing reverse reaction

Technical Field

The utility model relates to the technical field of esterification kettles, in particular to an esterification kettle capable of preventing reverse reaction.

Background

At present, the upper end of a common esterification kettle is provided with a smooth arc surface, and the upper end of the esterification kettle is also provided with an air lifting port, wherein the air lifting port is positioned on the outer edge of the arc surface, and the opening direction is upward.

At the moment, steam generated by the esterification reaction in the esterification kettle is gathered at the highest point of the kettle body, and then the steam is dripped into the reaction materials after being condensed. Because the esterification reaction is a reversible reaction, the product after the reaction can cause reverse reaction when meeting water at high temperature, so that the product is reduced into raw materials again, and the esterification kettle has the defects of long reaction time, low efficiency and high energy consumption.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an esterification kettle for preventing reverse reaction, which can solve the problems of long reaction time, low efficiency and high energy consumption in a kettle body because reverse reaction is easy to occur in the traditional esterification kettle by offsetting the position of an air lifting port to the central point of an arc surface and communicating the air lifting port with the input end of a water distribution device.

In order to achieve the purpose, the utility model provides the following technical scheme:

an esterification kettle for preventing reverse reaction comprises a kettle body and a water diversion device, wherein the top of the kettle body is provided with an arc surface, the center of the arc surface is provided with an air lifting port, and the air lifting port is connected with the input end of the water diversion device;

the air lifting port is used for providing steam for the water separating device, and the water separating device can separate oil liquid and water liquid in the steam;

the water diversion device comprises an oil-water separation tank, an upper-layer oil storage tank and a lower-layer water storage tank; the upper end of the side wall of the oil-water separation tank is communicated with the upper-layer oil storage tank through an oil discharge pipe, and the bottom of the oil-water separation tank is communicated with the lower-layer water storage tank through a drain pipe;

the middle part of the oil-water separation tank is horizontally provided with a liquid inlet pipe, the liquid inlet pipe is communicated with the gas lifting port, the oil-water separation tank separates oil and water in the oil-water mixed liquid, and the liquid inlet pipe is positioned at the height of an oil-water interface in the oil-water separation tank.

Optionally, the central point of the arc surface is offset to a high position.

Optionally, an input end of the oil discharge pipe is connected with an oil discharge port at the upper end of the side wall of the oil-water separation tank, and an output end of the oil discharge pipe is connected with an oil inlet at the top of the upper oil storage tank;

the height H1 of the oil outlet is higher than that of the oil inlet, and the height H1 of the oil outlet is higher than that H2 of the liquid inlet pipe.

Optionally, the input end of the drain pipe is connected with a water outlet at the bottom of the oil-water separation tank, and the output end of the drain pipe is connected with a water inlet at the top of the lower-layer water storage tank;

the height of the water outlet is higher than that of the water inlet, and the height of the water outlet is lower than that of the liquid inlet pipe H2.

Optionally, the highest height H3 of the drain pipe is higher than the height H2 of the liquid inlet pipe.

Optionally, the height H1 of the oil drain port is higher than the highest height H3 of the drain pipe.

Optionally, the oil-water separation jar the upper oil storage tank with the top of lower floor's water storage tank all is equipped with the blow vent, and is a plurality of the blow vent is linked together through balanced pipe.

Optionally, a stirring assembly is vertically arranged in the kettle body, and the stirring assembly is used for stirring reaction raw materials in the kettle body.

Optionally, the circular arc surface is further provided with a stirring port and a feeding port, the stirring port is located in the center of the circular arc surface, the end of the stirring assembly is rotatably connected with the stirring port, and the feeding port is located on the outer side edge of the circular arc surface.

Compared with the prior art, the embodiment of the utility model has the following beneficial effects:

1. the arc surface can increase the effective capacity in the kettle body, and the air lifting port is arranged at the central position of the arc surface, so that the water vapor generated by the reaction in the kettle body can be discharged into the water diversion device through the air lifting port, and the condition that the water vapor drips in the reaction materials again when meeting condensation can be reduced. According to related data, the output of DOTP in the same industry per hour is 3.02 tons, and the yield can be increased to 3.52 tons after the esterification kettle for preventing the reverse reaction is adopted, so that the problems of long reaction time, low efficiency and high energy consumption in a kettle body, which are caused by the fact that the reverse reaction is easy to occur in the traditional esterification kettle, are solved;

2. due to the high temperature in the tank, a small amount of the reaction material may be vaporized and then discharged into the lift gas together with water vapor. The gas rising port is communicated with the liquid inlet pipe, the liquid inlet pipe discharges oil-water mixed liquid discharged from the gas rising port into the oil-water separation tank, the oil-water separation tank can separate oil liquid and water liquid, so that the liquid with smaller oil isopycnic density floats at the upper end of the oil-water separation tank, and the liquid with larger water isopycnic density sinks at the lower end of the oil-water separation tank. At the moment, oil can be conveyed to the upper-layer oil storage tank through the oil discharge pipe, and water can be conveyed to the lower-layer water storage tank through the water discharge pipe, so that oil-water separation can be conveniently and quickly realized, pollution of dirty oil to a water environment is reduced, and the work difficulty of oil-water separation of workers is reduced.

Drawings

FIG. 1 is a schematic view of a reactor body and a circular arc surface in an esterification reactor for preventing reverse reaction according to an embodiment of the present invention;

FIG. 2 is a top view of a circular arc surface and an air lift port in an esterification reactor for preventing reverse reaction according to an embodiment of the present invention;

FIG. 3 is a schematic view of a water diversion apparatus in an esterification kettle for preventing reverse reaction according to an embodiment of the present invention;

wherein, 1, a kettle body; 10. a circular arc surface; 11. an air lift port; 12. a stirring port; 13. a feeding port; 14. a stirring assembly; 2. a water diversion device; 21. an oil-water separation tank; 210. a liquid inlet pipe; 22. an upper oil storage tank; 220. an oil discharge pipe; 221. an oil discharge port; 222. an oil inlet; 23. a lower layer water storage tank; 230. a drain pipe; 231. a water outlet; 232. a water inlet; 24. a balance tube; 241. and (4) a vent.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An esterification reactor for preventing reverse reaction according to an embodiment of the present invention will be described with reference to fig. 1 to 2.

The utility model provides a prevent esterification reaction's cauldron, includes the cauldron body 1 and divides water installation 2, the top of the cauldron body 1 is equipped with arc surface 10, the central point of arc surface 10 puts and is equipped with lift gas mouth 11, lift gas mouth 11 with divide water installation 2's input to link to each other. The air lifting port 11 is used for providing steam to the water separation device 2, and the water separation device 2 can separate oil from water in the steam.

The water diversion device 2 comprises an oil-water separation tank 21, an upper layer oil storage tank 22 and a lower layer water storage tank 23; the upper end of the side wall of the oil-water separation tank 21 is communicated with the upper layer oil storage tank 22 through an oil discharge pipe 220, and the bottom of the oil-water separation tank 21 is communicated with the lower layer water storage tank 23 through a drain pipe 230. The middle part of the oil-water separation tank 21 is horizontally provided with a liquid inlet pipe 210, the liquid inlet pipe 210 is communicated with the gas lifting port 11, the oil-water separation tank 21 separates oil and water in the oil-water mixed liquid, and the liquid inlet pipe 210 is positioned at the height of an oil-water interface in the oil-water separation tank 21.

The esterification kettle for preventing reverse reaction prepared by the scheme has the advantages that the effective capacity in the kettle body 1 can be increased by the arc surface 10, the air lifting port 11 is arranged at the central position of the arc surface 10, and water vapor generated by reaction in the kettle body 1 can be discharged into the water distribution device 2 through the air lifting port 11, so that the condition that the water vapor drips in reaction materials again when meeting condensation can be reduced. According to the relevant data, the output of DOTP in the same industry per hour is 3.02 tons, and the yield can be increased to 3.52 tons after the esterification kettle for preventing the reverse reaction is adopted, so that the problems of long reaction time, low efficiency and high energy consumption in the kettle body 1 caused by the fact that the reverse reaction is easy to occur in the traditional esterification kettle are solved.

Due to the high temperature in the reaction vessel 1, a small amount of the reaction material may be vaporized and then discharged into the lift gas port 11 together with water vapor. The gas lift 11 is communicated with the liquid inlet pipe 210, the liquid inlet pipe 210 discharges the oil-water mixed liquid discharged from the gas lift 11 into the oil-water separation tank 21, the oil-water separation tank 21 can separate oil and water, so that the liquid with smaller oil isopycnic density floats on the upper end of the oil-water separation tank 21, and the liquid with larger water isopycnic density sinks on the lower end of the oil-water separation tank 21. At this time, the oil can be delivered to the upper oil storage tank 22 through the oil discharge pipe 220, and the water can be delivered to the lower water storage tank 23 through the water discharge pipe 230, so that oil-water separation can be conveniently and rapidly realized, pollution of dirty oil to a water environment is reduced, and the work difficulty of oil-water separation of workers is reduced.

Because the oil-water separation tank 21 separates the oil and water in the oil-water mixture, at this time, the liquid inlet pipe 210 conveys the oil-water mixture at the oil-water interface, and the oil-water mixture separates two liquids, thereby effectively avoiding the mixing of the two liquids and further reducing the difficulty of oil-water separation.

The liquid inlet pipe 210 discharges the oil-water mixed liquid at the oil-water interface, so that oil and water can be separated, the two liquids are effectively prevented from being mixed with each other, the speed of discharging the oil and the water out of the oil-water separation tank 21 respectively is further increased, the situation that the oil-water mixed liquid is directly discharged into the environment to cause environmental pollution is reduced, and the diversified utilization of resources is realized.

Referring to fig. 2, the center point of the arc surface 10 is offset to a high position. The central point of the arc surface 10 is deviated to a high position, so that the effective capacity in the kettle body 1 is increased, the content of reaction materials in the kettle body 1 can be increased, and the yield of the kettle body 1 in unit time is improved.

The stirring assembly 14 is vertically arranged in the kettle body 1, and the stirring assembly 14 is used for stirring reaction raw materials in the kettle body 1. The stirring component 14 can stir and roll the reaction raw materials in the kettle body 1, thereby increasing the reaction speed of the esterification reaction and further improving the defects of long reaction time, low efficiency and high energy consumption of the traditional esterification kettle.

The arc surface 10 is also provided with a stirring port 12 and a feeding port 13, the stirring port 12 is positioned in the center of the arc surface 10, the end part of the stirring component 14 is rotatably connected with the stirring port 12, and the feeding port 12 is positioned on the outer side edge of the arc surface 10. It is worth explaining that, when the esterification reaction in the kettle body 1 is about to be completed, the production materials in the kettle body 1 are more than the reaction materials, the staff can open the feed inlet 13 and feed the materials into the kettle body 1, so that the amount of the reaction materials is more than the amount of the production materials, the reverse reaction in the kettle body 1 is avoided, the esterification kettle can be uninterruptedly operated all day long, and the yield of the esterification kettle in unit time is improved.

The stirring port 12 is located at the center of the arc surface 10, so that the stirring component 14 is also located at the center of the kettle body 1, the stirring component 14 can fully stir the reaction materials in the kettle body 1, and the reaction speed in the kettle body 1 is improved.

Referring to fig. 3, an input end of the oil discharge pipe 220 is connected to an oil discharge port 221 at an upper end of a side wall of the oil-water separation tank 21, and an output end of the oil discharge pipe 220 is connected to an oil inlet 222 at a top of the upper oil storage tank 22. The height H1 of the oil discharge port 221 is higher than the height of the oil inlet 22, and the height H1 of the oil discharge port 221 is higher than the height H2 of the liquid inlet pipe 210.

The liquid inlet pipe 210 continuously conveys the oil-water mixed liquid into the oil-water separation tank 21, so that the height of the oil floating at the upper end of the oil-water separation tank 21 is higher than the height H1 of the oil discharge port 221, the oil sequentially passes through the oil discharge port 221 and the oil discharge pipe 220, and then flows into the upper oil storage tank 22 under the action of gravity, and the rapid separation between oil and water is realized.

Wherein, the height H1 of the oil discharge port 221 is higher than the height H2 of the liquid inlet pipe 210, which can ensure that the water liquid can not pass through the oil discharge port 221, thereby ensuring that the water liquid can not be delivered into the upper oil storage tank 22.

The input end of the water drainage pipe 230 is connected with the water drainage port 231 at the bottom of the oil-water separation tank 21, and the output end of the water drainage pipe 230 is connected with the water inlet 232 at the top of the lower water storage tank 23;

the height of the water outlet 231 is higher than that of the water inlet 232, and the height of the water outlet 231 is lower than that of the liquid inlet pipe 210, i.e., the height H2. The liquid inlet pipe 210 continuously conveys the oil-water mixed liquid to the middle part of the oil-water separation tank 21, so that the water level of the oil is continuously raised, and then the oil is discharged into the upper oil storage tank 22 from the oil outlet 221; the oil-water mixture continuously impacts the water liquid, so that the water liquid at the bottom of the oil-water separation tank 1 can sequentially pass through the water discharge port 231 and the water discharge pipe 230 under the action of gravity and then flow into the lower-layer water storage tank 23, thereby realizing rapid and automatic separation between oil and water.

It should be noted that the height of the drain 231 is lower than the height H2 of the inlet pipe 210, so as to ensure that the oil cannot pass through the drain 231, and thus ensure that the oil cannot be delivered to the lower water tank 23.

The highest height H3 of the water discharge pipe 230 is higher than the height H2 of the liquid inlet pipe 210. According to the principle of the communicating vessel, when the oil liquid needs to flow into the lower water tank 23 in the drain pipe 230, the height of the oil liquid in the oil-water separation tank 21 must be higher than the highest height H3 of the drain pipe 230, and since the height H2 of the liquid inlet pipe 210 is located at the oil-water interface of the oil-water mixture, the oil-water mixture discharged from the liquid inlet pipe 210 can separate the oil liquid from the water liquid, so that the oil liquid can be discharged into the upper water tank 22 through the oil discharge port 221, and the water liquid can be discharged into the lower water tank 23 through the water discharge port 231, thereby reducing the occurrence of the situation that the oil liquid is discharged into the lower water tank 23 from the drain pipe 230.

When the maximum height H3 of the drain pipe 230 is lower than the height H2 of the liquid inlet pipe 210, the height of the oil-water interface in the oil-water separation tank 21 is lowered, the oil-water mixture is difficult to separate the two liquids, and at this time, the oil is discharged to the lower water storage tank 23 by gravity.

The height H1 of the oil drain port 221 is higher than the highest height H3 of the drain pipe 230. According to the principle of the communicating vessel, when the height H1 of the oil outlet 221 is lower than the highest height H3 of the water discharge pipe 230, the height of the oil in the oil-water separation tank 21 needs to be higher than the highest height H3 of the water discharge pipe 230, and the water liquid at the bottom of the oil-water separation tank 21 can be discharged into the lower-layer water storage tank 23, however, the height of the oil-water interface will be increased accordingly, the oil-water mixture cannot be discharged to separate the two liquids, and the oil and the water liquid at the upper layer will be discharged into the upper-layer oil storage tank 22 from the oil outlet 221, so that it is difficult to separate the oil from the water liquid.

It should be noted that, the present solution does not explicitly describe the values of the height H1 of the oil drain port 221, the height H2 of the liquid inlet pipe 210, and the highest height H3 of the water drain pipe 230, so that the user can determine the heights according to different site requirements, thereby expanding the application range of the water diversion apparatus 2 in the present solution.

The oil-water separation tank 21 the upper oil storage tank 22 and the top of the lower water storage tank 23 are provided with air vents 241, and the air vents 241 are communicated through a balance pipe 24. Wherein, the balance pipe 24 can ensure that the pressure between the oil-water separation tank 21, the lower layer water storage tank 23 and the upper layer oil storage tank 22 is stable, so that the water diversion device 2 of the application can normally operate in a closed environment.

Other configurations and operations of an esterification kettle for preventing reverse reaction according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An esterification kettle for preventing reverse reaction is characterized by comprising a kettle body and a water diversion device, wherein the top of the kettle body is provided with an arc surface, the center of the arc surface is provided with an air lifting port, and the air lifting port is connected with the input end of the water diversion device;

the air lifting port is used for providing steam for the water separating device, and the water separating device is used for separating oil liquid and water liquid in the steam;

2. The esterification kettle for preventing reverse reaction as claimed in claim 1, wherein the center point of said circular arc surface is shifted to a high position.

3. The esterification kettle for preventing the reverse reaction as claimed in claim 1, wherein an input end of the oil drain pipe is connected to an oil drain port at an upper end of a side wall of the oil-water separation tank, and an output end of the oil drain pipe is connected to an oil inlet at a top of the upper oil storage tank;

4. The esterification kettle for preventing the reverse reaction according to claim 1, wherein the input end of the drain pipe is connected with the water outlet at the bottom of the oil-water separation tank, and the output end of the drain pipe is connected with the water inlet at the top of the lower water storage tank;

5. The esterification kettle for preventing reverse reaction as claimed in claim 1, wherein the highest height H3 of the water discharge pipe is higher than the height H2 of the water inlet pipe.

6. The esterification kettle of claim 3, wherein the height H1 of said oil drain port is higher than the highest height H3 of said water drain pipe.

7. The esterification kettle of claim 1, wherein the top of the oil-water separation tank, the upper oil storage tank and the lower water storage tank are provided with vents, and the vents are communicated with each other through a balance pipe.

8. The esterification kettle capable of preventing the reverse reaction according to claim 1, wherein a stirring component is vertically arranged inside the kettle body, and the stirring component is used for stirring reaction raw materials in the kettle body.

9. The esterification kettle for preventing the reverse reaction as claimed in claim 8, wherein the circular arc surface is further provided with a stirring port and a feeding port, the stirring port is located at the center of the circular arc surface, the end of the stirring assembly is rotatably connected to the stirring port, and the feeding port is located at the outer edge of the circular arc surface.