Heating reaction equipment for producing organic carbonic ester

Abstract

The utility model relates to the technical field of organic carbonic ester production, and discloses heating reaction equipment for organic carbonic ester production, which comprises a reaction cylinder, a cylinder cover and a heating cylinder, the cylinder cover is matched with the reaction cylinder, the heating cylinder is fixedly sleeved on the outer wall of the reaction cylinder, support legs are equidistantly mounted on the circumference of the outer wall of the bottom of the reaction cylinder, and the support legs are fixedly sleeved on the outer wall of the reaction cylinder. A feeding hole is formed in the top of the barrel cover in a communicating manner, a thermometer is arranged at the top of the barrel cover, a heating assembly is arranged on the heating barrel, and a stirring assembly is arranged in the reaction barrel. By starting the motor, the motor drives the stirring shaft to rotate through the speed reducer, the stirring shaft drives the stirring sleeve and the stirring blades to carry out stirring reaction on organic carbonate, and the stirring shaft drives the stirring rod to carry out stirring reaction on the organic carbonate at the bottommost part of the reaction cylinder, so that stirring is carried out during the reaction of the organic carbonate; the organic carbonic ester is uniformly heated, and the crystallization is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of organic carbonate production, in particular to heating reaction equipment used for organic carbonate production. Background Art

[0002] Organic carbonates are widely used in chemical and pharmaceutical industries, including propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), diphenyl carbonate (DPC), etc. These carbonate molecules are widely used in organic synthesis, drug synthesis, engineering plastics, green additives, and color TV tube cleaners because of the active carbonyl groups they contain. In recent years, they have been increasingly favored by researchers at home and abroad.

[0003] In the production of organic carbonates, such as the commonly used direct synthesis method of carbon dioxide and alcohol, the reaction equipment is only equipped with a stirring device to stir the reaction of carbon dioxide and methanol or ethanol. Although organic carbonates can be synthesized, there is no device for heating the organic carbonates, which causes the organic carbonates to easily crystallize at low temperatures, thereby reducing the production efficiency of the organic carbonates. Utility Model Content

[0004] The utility model aims to provide a heating reaction device for the production of organic carbonate, so as to achieve the purpose of heating the organic carbonate when it reacts to prevent the organic carbonate from crystallizing, and at the same time, cyclic heating can be performed during heating, and the organic carbonate can be heated evenly.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heating reaction device for the production of organic carbonates, comprising a reaction tube 1, a tube cover 2, and a heating tube 3, wherein the tube cover 2 is adapted to the reaction tube 1, the heating tube 3 is fixedly sleeved on the outer wall of the reaction tube 1, and the outer wall of the bottom of the reaction tube 1 is equidistantly provided with support legs 4, a discharge valve 5 is provided at the bottom of the reaction tube 1, a feed port 6 is provided at the top of the tube cover 2, a thermometer 7 is provided at the top of the tube cover 2, the other end of the thermometer 7 penetrates the outer wall of the tube cover 2 and extends to the interior of the reaction tube 1, a heating assembly 8 is provided on the heating tube 3, and a stirring assembly 9 is provided inside the reaction tube 1.

[0006] Furthermore, the heating component 8 includes: a water tank 811, a first pump 813, a second pump 814 and a circulation pipe 815, wherein: the water tank 811 is fixedly mounted on the outer wall of the heating tube 3; the first pump 813 is fixedly connected to the top of the water tank 811; the second pump 814 is fixedly connected to the bottom of the water tank 811; and the circulation pipe 815 is arranged inside the heating tube 3.

[0007] Furthermore, a heating plate 812 is symmetrically installed at the bottom of the water tank 811, and both ends of the circulation pipe 815 respectively penetrate the inner wall of the heating cylinder 3 and extend to the outside of the heating cylinder 3; the output end of the first pump 813 is connected to a first connecting pipe 816, and the other end of the first connecting pipe 816 is connected to one end of the circulation pipe 815, and the input end of the first pump 813 is connected to a first pumping pipe 817, and the other end of the first pumping pipe 817 penetrates the top of the water tank 811 and extends to the inside of the water tank 811; the output end of the second pump 814 is connected to a second connecting pipe 818, and the other end of the second connecting pipe 818 is connected to the other end of the circulation pipe 815, and the input end of the second pump 814 is connected to a second pumping pipe 819, and the other end of the second pumping pipe 819 penetrates the bottom of the water tank 811 and extends to the inside of the water tank 811.

[0008] Furthermore, the stirring assembly 9 includes a support frame 911 and a stirring shaft 916, wherein: the support frame 911 is fixedly installed on the top of the cylinder cover 2; and the stirring shaft 916 is rotatably connected to the cylinder cover 2 via a bearing.

[0009] Furthermore, a motor 912 is fixedly connected to the top of the support frame 911, and the output end of the motor 912 passes through the top of the support frame 911 and is provided with a reducer 913. The output end of the reducer 913 is fixedly connected to one end of a stirring shaft 916 through a connecting tube 914, and a shaft seal 915 is sleeved between the stirring shaft 916 and the top of the tube cover 2; a stirring sleeve 917 is fixedly sleeved on the outer wall of the stirring shaft 916, and stirring blades 918 are equidistantly installed on the outer wall circumference of the stirring sleeve 917, and a stirring rod 919 is equidistantly installed on the outer wall circumference of the other end of the stirring shaft 916.

[0010] The utility model provides a heating reaction device for producing organic carbonate.

[0011] Beneficial effects:

[0012] (1) The utility model starts the heating plate to heat the water in the water tank, starts the second pump, and the second pump allows the heated water in the water tank to enter the circulation pipe through the second pumping pipe and the second connecting pipe. Since the circulation pipe is in the heating cylinder, the reaction cylinder can be heated. When the temperature starts to drop, the first pump and the second pump are started. The first pump allows the water in the circulation pipe to enter the water tank through the first connecting pipe and the first pumping pipe for reheating. The second pump sends the heated water in the water tank into the circulation pipe, thereby achieving the effect of circulating and heating the organic carbonate.

[0013] (2) The utility model starts the motor, and the motor drives the stirring shaft to rotate through the reducer. The stirring shaft drives the stirring sleeve and the stirring blades to stir the organic carbonate. The stirring shaft drives the stirring rod to stir the organic carbonate at the bottom of the reaction tube, so that the organic carbonate is heated evenly and the crystallization effect is prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a front sectional view of the structure of the utility model;

[0016] Figure 3 This is a structural view of the stirring assembly of the utility model;

[0017] Figure 4 This is a structural view of the heating component of the utility model.

[0018] In the figure: 1-reaction cylinder; 2-cylinder cover; 3-heating cylinder; 4-support leg; 5-discharge valve; 6-feed port; 7-thermometer; 8-heating component; 9-stirring component;

[0019] 811-water storage tank; 812-heating plate; 813-first pump; 814-second pump; 815-circulation pipe; 816-first connecting pipe; 817-first water pumping pipe; 818-second connecting pipe; 819-second water pumping pipe;

[0020] 911-support frame; 912-motor; 913-reducer; 914-connecting tube; 915-shaft seal; 916-stirring shaft; 917-stirring sleeve; 918-stirring blade; 919-stirring rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] Example 1

[0024] A preferred embodiment of a heating reaction device for producing organic carbonate provided by the utility model is as follows Figure 1-4 As shown: A heating reaction device for producing organic carbonates, comprising a reaction tube 1, a tube cover 2, and a heating tube 3, wherein the tube cover 2 is adapted to the reaction tube 1, the heating tube 3 is fixedly sleeved on the outer wall of the reaction tube 1, and support legs 4 are equidistantly installed on the circumference of the bottom outer wall of the reaction tube 1, a discharge valve 5 is arranged at the bottom of the reaction tube 1, a feed port 6 is arranged on the top of the tube cover 2, a thermometer 7 is arranged on the top of the tube cover 2, and the other end of the thermometer 7 penetrates the outer wall of the tube cover 2 and extends to the interior of the reaction tube 1, a heating component 8 is arranged on the heating tube 3, and a stirring component 9 is arranged inside the reaction tube 1,

[0025] The heating assembly 8 includes: a water tank 811, which is fixedly mounted on the outer wall of the heating cylinder 3; a first pump 813, which is fixedly connected to the top of the water tank 811; a second pump 814, which is fixedly connected to the bottom of the water tank 811; a circulation pipe 815, which is arranged inside the heating cylinder 3; two heating plates 812 are arranged at the bottom of the water tank 811, which are symmetrically installed with the middle as the reference plane, one is arranged at the front bottom and the other is arranged at the rear bottom. The two ends of the circulation pipe 815 respectively penetrate the inner wall of the heating tube 3 and extend to the outside of the heating tube 3. The output end of the first pump 813 is connected to the first connecting pipe 816, and the other end of the first connecting pipe 816 is connected to one end of the circulation pipe 815. The input end of the first pump 813 is connected to the first pumping pipe 817, and the other end of the first pumping pipe 817 penetrates the top of the water tank 811 and extends to the inside of the water tank 811. The output end of the second pump 814 is connected to the second connecting pipe 818, and the other end of the second connecting pipe 818 is connected to the other end of the circulation pipe 815. The input end of the second pump 814 is connected to the second pumping pipe 819, and the other end of the second pumping pipe 819 penetrates the bottom of the water tank 811 and extends to the inside of the water tank 811.

[0026] The stirring assembly 9 includes: Figure 1-4 As shown, a support frame 911 is fixedly mounted on the top of the drum cover 2; a stirring shaft 916 is rotatably connected to the drum cover 2 via a bearing; a motor 912 is fixedly connected to the top of the support frame 911, an output end of the motor 912 passes through the top of the support frame 911, and a reducer 913 is provided, an output end of the reducer 913 is fixedly connected to one end of the stirring shaft 916 via a connecting tube 914, a shaft seal 915 is sleeved between the stirring shaft 916 and the top of the drum cover 2, a stirring sleeve 917 is fixedly sleeved on the outer wall of the stirring shaft 916, stirring blades 918 are equidistantly installed on the outer wall circumference of the stirring sleeve 917, and stirring rods 919 are equidistantly installed on the outer wall circumference of the other end of the stirring shaft 916.

[0027] When this embodiment is used, first, the organic carbonate is poured into the reaction cylinder 1 through the feed port 6, and the heating plate 812 is started to heat the water in the water tank 811, and the second pump 814 is started, and the second pump 814 allows the heated water in the water tank 811 to enter the second connecting pipe 818 through the second pumping pipe 819, and then enter the circulation pipe 815 through the second connecting pipe 818. Since the circulation pipe 815 is in the heating cylinder 3, the reaction cylinder 1 can be heated. The thermometer 7 is observed. If the temperature inside the reaction cylinder 1 is lower than the required temperature, the first pump 813 and the second pump 814 are started, and the first pump 813 allows the water in the circulation pipe 815 to enter the first pumping pipe 817 through the first connecting pipe 816, and finally enter the water tank 811 for reheating, and the second pump 814 then sends the heated water in the water tank 811 to the circulation pipe 815. This operation is repeated to keep the temperature in the reaction cylinder stable. At the same time, the motor 912 is started, and the motor 912 drives the stirring shaft 916 to rotate through the reducer 913. The stirring shaft 916 drives the stirring sleeve 917 and the stirring blade 918 to stir the organic carbonate. The stirring shaft 916 drives the stirring rod 919 to stir the organic carbonate at the bottom of the reaction tube 1.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heating reaction device for producing organic carbonate, comprising a reaction cylinder (1), a cylinder cover (2), and a heating cylinder (3), characterized in that: The cylinder cover (2) is adapted to the reaction cylinder (1); the heating cylinder (3) is fixedly sleeved on the outer wall of the reaction cylinder (1); support legs (4) are equidistantly installed on the circumference of the bottom outer wall of the reaction cylinder (1); a discharge valve (5) is arranged at the bottom of the reaction cylinder (1); a feed port (6) is arranged at the top of the cylinder cover (2); a thermometer (7) is arranged at the top of the cylinder cover (2); the other end of the thermometer (7) penetrates the outer wall of the cylinder cover (2) and extends to the interior of the reaction cylinder (1); a heating component (8) is arranged on the heating cylinder (3); and a stirring component (9) is arranged inside the reaction cylinder (1); The heating component (8) comprises a water storage tank (811), a first pump (813), a second pump (814) and a circulation pipe (815), wherein: A water storage tank (811) is fixedly sleeved on the outer wall of the heating cylinder (3); A first pump (813) is fixedly connected to the top of the water storage tank (811); A second pump (814) is fixedly connected to the bottom of the water storage tank (811); A circulation pipe (815) is arranged inside the heating cylinder (3); A heating plate (812) is symmetrically mounted on the bottom of the water storage tank (811); both ends of the circulation pipe (815) respectively penetrate the inner wall of the heating cylinder (3) and extend to the outside of the heating cylinder (3); the output end of the first pump (813) is connected to a first connecting pipe (816); the other end of the first connecting pipe (816) is connected to one end of the circulation pipe (815); the input end of the first pump (813) is connected to a first water pumping pipe (817); the first water pumping pipe (817) The other end of the second pump (814) passes through the top of the water tank (811) and extends into the interior of the water tank (811); the output end of the second pump (814) is connected to a second connecting pipe (818), the other end of the second connecting pipe (818) is connected to the other end of the circulation pipe (815); the input end of the second pump (814) is connected to a second water pumping pipe (819), the other end of the second water pumping pipe (819) passes through the bottom of the water tank (811) and extends into the interior of the water tank (811).

2. A heating reaction device for producing organic carbonate according to claim 1, characterized in that: The stirring assembly (9) comprises a support frame (911) and a stirring shaft (916), wherein: A support frame (911) is fixedly mounted on the top of the cylinder cover (2); The stirring shaft (916) is rotatably connected to the cylinder cover (2) via a bearing.

3. A heating reaction device for producing organic carbonate according to claim 2, characterized in that: A motor (912) is fixedly connected to the top of the support frame (911); an output end of the motor (912) passes through the top of the support frame (911) and is provided with a reducer (913); an output end of the reducer (913) is fixedly connected to one end of a stirring shaft (916) via a connecting tube (914); a shaft seal (915) is sleeved between the stirring shaft (916) and the top of the tube cover (2); a stirring sleeve (917) is fixedly sleeved on the outer wall of the stirring shaft (916); stirring blades (918) are equidistantly mounted on the outer wall of the stirring sleeve (917); and a stirring rod (919) is equidistantly mounted on the outer wall of the other end of the stirring shaft (916).

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