Dimethyl sulfate esterification reactor with spherical gas distribution device

Abstract

The utility model discloses a dimethyl sulfate esterification reactor with a spherical gas distribution device. The dimethyl sulfate esterification reactor comprises a reactor, a methyl ether inlet, a circulating liquid outlet, an ejector mounting port, a discharge port, an inspection port, a spherical device, a mounting assembly and a connecting assembly, the spherical device is arranged in the reactor, the large holes and the small holes are evenly distributed in the spherical device, the ejector mounting opening is formed in the end side of the reactor body, the connecting assembly is fixedly arranged on the ejector mounting opening, the discharging opening is formed in the end side of the reactor in a welded mode, and the mounting assembly is fixedly arranged on the discharging opening. Dimethyl ether gas can enter a reaction area in a uniform state, so that the esterification reaction efficiency is improved; by arranging the mounting assembly and the connecting assembly, when the reactor needs to be in butt joint or parts need to be replaced, operation can be rapidly carried out, the sealing performance and firmness of connection are ensured through the arrangement of a sealing gasket and a fastening thread, and the reaction process is conveniently observed through the arrangement of an inspection opening.

Description

Technical Field

[0001] The utility model relates to the technical field of esterification reaction, in particular to a dimethyl sulfate esterification reactor with a spherical gas distribution device. Background Technique

[0002] Dimethyl sulfate is an important chemical raw material, widely used in industries such as pharmaceuticals, dyes, and spices. In the production process of dimethyl sulfate, the esterification reaction is a key link. Traditional dimethyl sulfate esterification reactors usually use a simple stirring device to promote the mixing of reaction materials. However, this method has some problems: on the one hand, the stirring effect is limited, and it is difficult to achieve full mixing of reaction materials, especially for the mixing of gas and liquid, which will lead to a slow reaction rate, incomplete reaction, and affect the quality and yield of products. On the other hand, the traditional reactor is connected to the ejector and the discharge storage tank in an insertion connection. For some large reactors, the direct insertion connection may cause difficulties in the installation and maintenance of the ejector, and a large installation hole needs to be opened on the reactor, which may affect the structural strength of the reactor. If the ejector fails, it needs to be removed from the reactor for repair, which may affect the normal operation of the reactor.

[0003] Therefore, the utility model proposes a dimethyl sulfate esterification reactor with a spherical gas distribution device to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dimethyl sulfate esterification reactor with a spherical gas distribution device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A dimethyl sulfate esterification reactor with a spherical gas distribution device: including a reactor, a methyl ether inlet, a circulating liquid outlet, an ejector installation port, a discharge port, an inspection port, a spherical device, an installation component, and a connection component.

[0006] The methyl ether inlet and the circulating liquid outlet are arranged on one side of the reactor body. An inspection port is arranged on one side of the reactor. The spherical device is fixedly arranged inside the reactor.

[0007] The ejector installation port is arranged at the end side of the reactor body. The connection component is fixedly arranged on the ejector installation port.

[0008] The discharge port is welded and arranged at the end side of the reactor. The installation component is fixedly arranged on the discharge port.

[0009] Preferably, the spherical device is fixedly arranged inside the reactor. The spherical device is evenly provided with large holes and small holes. The small holes are evenly distributed on the side of the large holes.

[0010] Preferably, the installation component includes an installation cylinder and a sealing gasket. Threads are evenly arranged on the installation cylinder, and the installation cylinder is threadedly connected to the storage tank opening. The sealing gasket is arranged on the installation cylinder. A discharge pipe opening is arranged on the discharge port, and the sealing gasket is tightly connected to the discharge pipe opening.

[0011] Preferably, the connection component includes a pipeline and a connector. The connector is provided with fastening threads. An installation head is welded on the injector installation opening, and the installation head is provided with second fastening threads. The fastening threads are threadedly connected to the second fastening threads.

[0012] Preferably, the sealing gasket is in a circular shape. The inner diameter of the sealing gasket is the same as the inner diameter of the discharge pipe opening, and the outer diameter of the sealing gasket is the same as the inner diameter of the installation cylinder.

[0013] Preferably, connectors are arranged on both sides of the pipeline, and the inner diameter of the connector is equal to the outer diameter of the installation head.

[0014] Preferably, the fastening threads on the connector and the second fastening threads on the installation head are arranged in corresponding positions, and the spiral directions of the fastening threads and the second fastening threads are the same.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging the spherical device in the reactor, with large holes and small holes evenly distributed on the device, the dimethyl ether gas can enter the reaction area in a uniform state, improving the efficiency of the esterification reaction; By arranging the installation component and the connection component, when it is necessary to dock or replace components of the reactor, the operation can be carried out quickly. The arrangement of the sealing gasket and the fastening threads ensures the sealing performance and firmness of the connection. By arranging the inspection port, it is convenient to observe the reaction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic end-side structural diagram of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the spherical device of the present utility model;

[0019] Figure 4 is a partially enlarged schematic view of the structure at A of the present utility model;

[0020] Figure 5 is a schematic structural diagram of the connection component of the present utility model;

[0021] Figure 6 is a partially enlarged schematic view of the structure at B of the present utility model;

[0022] Figure 7 This is a schematic structural diagram of the installation component of the present utility model.

[0023] In the figure: reactor 1, methyl ether inlet 2, circulating liquid outlet 3, ejector installation port 4, discharge port 5, inspection port 6, spherical device 7, installation component 8, connection component 9, discharge pipe orifice 501, large hole 701, small hole 702, installation cylinder 801, gasket 802, thread 803, pipe 901, connection head 902, fastening thread 903, installation head 904, second fastening thread 905. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. For the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 3 , a dimethyl sulfate esterification reactor with a spherical gas distribution device, comprising a reactor 1, a methyl ether inlet 2, a circulating liquid outlet 3, an ejector installation port 4, a discharge port 5, an inspection port 6, a spherical device 7, an installation component 8, and a connection component 9.

[0026] The methyl ether inlet 2 and the circulating liquid outlet 3 are arranged on one side of the main body of the reactor 1. An inspection port 6 is arranged on one side of the reactor 1. The spherical device 7 is fixedly arranged inside the reactor 1.

[0027] The ejector installation port 4 is arranged at the end side of the main body of the reactor 1. The connection component 9 is fixedly arranged on the ejector installation port 4.

[0028] The discharge port 5 is welded and arranged at the end side of the reactor 1. The installation component 8 is fixedly arranged on the discharge port 5.

[0029] The spherical device 7 is evenly provided with large holes 701 and small holes 702. The small holes 702 are evenly distributed on the side of the large holes 701.

[0030] During use, first inject the processed dimethyl ether gas into the reactor 1 from the methyl ether inlet 2. When the dimethyl ether gas enters the reactor, the flow rate and pressure of the gas need to be maintained within a certain range to ensure the smooth progress of subsequent reactions.

[0031] After the dimethyl ether gas enters the reactor, it will encounter the spherical device 7. The function of this device is to evenly disperse the incoming dimethyl ether gas to each area inside the reactor. The spherical structure enables the gas to form a relatively uniform flow path inside the device and can reduce gas turbulence and local accumulation phenomena.

[0032] A plurality of large holes 701 and small holes 702 are evenly distributed on the spherical device 7. The dimethyl ether gas enters the reaction area of the reactor 1 in a relatively uniform state through these holes and comes into full contact with other reactants.

[0033] Please refer to Figure 4 and Figure 5 As shown in, the installation component 8 includes an installation cylinder 801 and a gasket 802. Threads 803 are evenly arranged on the installation cylinder 801. The installation cylinder 801 is threadedly connected to the storage tank opening. The gasket 802 is arranged on the installation cylinder 801. A discharge pipe opening 501 is arranged on the discharge port 5. The gasket 802 is tightly connected to the discharge pipe opening 501.

[0034] The gasket 802 is in a ring shape. The inner diameter size of the inner ring of the gasket 802 is the same as the inner diameter size of the discharge pipe opening 501, and the outer diameter size of the outer ring of the gasket 802 is the same as the inner diameter size of the installation cylinder 801.

[0035] During use, inside the reactor 1, there is already dimethyl sulfate (pyroester) that has pre-absorbed sulfur trioxide (SO3). After the dimethyl ether gas comes into contact with the pyroester, part of the dimethyl ether will undergo an esterification reaction with the SO3 in the pyroester to generate dimethyl sulfate; during the reaction, it is possible to check through the inspection port 6 whether the materials have reacted completely; the materials after the reaction, that is, a mixed solution containing dimethyl sulfate and possibly a small amount of unreacted dimethyl ether, SO3 and other substances, are discharged from the discharge port 5 of the reactor. After installing the storage tank end and the installation cylinder 801 and making the end tightly adhere to the gasket 802, the materials can be safely discharged without leakage.

[0036] Please refer to Figure 6 and Figure 7 As shown in, the connection component 9 includes a pipe 901 and a connector 902. A fastening thread 903 is arranged on the connector 902. An installation head 904 is welded on the injector installation port 4. A second fastening thread 905 is arranged on the installation head 904. The fastening thread 903 is threadedly connected to the second fastening thread 905.

[0037] Connectors 902 are arranged on both sides of the pipe 901. The inner diameter size of the connector 902 is equal to the outer diameter size of the installation head 904.

[0038] The fastening thread 903 on the connector 902 and the second fastening thread 905 on the installation head 904 are arranged in corresponding positions, and the spiral directions of the fastening thread 903 and the second fastening thread 905 are the same.

[0039] During use, the high-speed jet generated by the ejector can drive the flow of the reaction liquid, forming a circulating flow field, which can promote the mass transfer in the reaction liquid, enable the reactants to diffuse to the reaction interface faster, and at the same time carry away the reaction products in time to avoid the inhibition of the reaction caused by the accumulation of products. Thread the end of the ejector onto the connector 902 on the pipe 901 for fixation. When reacting, turn on the ejector to work to achieve the above effects.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dimethyl sulfate esterification reactor with a spherical gas distribution device, characterized in that: It comprises a reactor (1), a methyl ether inlet (2), a circulating liquid outlet (3), an injector installation port (4), a discharge port (5), an inspection port (6), a spherical device (7), a mounting assembly (8) and a connecting assembly (9); The methyl ether inlet (2) and the circulating liquid outlet (3) are arranged on one side of the reactor (1) body, an inspection port (6) is arranged on one side of the reactor (1), and the spherical device (7) is fixedly arranged in the reactor (1); The injector mounting port (4) is arranged on the end side of the reactor (1) body, and the connecting assembly (9) is fixedly arranged on the injector mounting port (4); The discharge port (5) is welded and arranged on the end side of the reactor (1), and the mounting assembly (8) is fixedly arranged on the discharge port (5).

2. The dimethyl sulfate esterification reactor with a spherical gas distribution device according to claim 1, characterized in that: The spherical device (7) is fixedly arranged in the reactor (1), and large holes (701) and small holes (702) are evenly arranged on the spherical device (7), and the small holes (702) are evenly distributed on the sides of the large holes (701).

3. The dimethyl sulfate esterification reactor with a spherical gas distribution device according to claim 1, characterized in that: The mounting assembly (8) comprises a mounting tube (801) and a sealing gasket (802); threads (803) are evenly arranged on the mounting tube (801); the mounting tube (801) is threadedly connected to the tank port; the sealing gasket (802) is arranged on the mounting tube (801); a discharge pipe opening (501) is arranged on the discharge port (5); and the sealing gasket (802) is tightly connected to the discharge pipe opening (501).

4. The dimethyl sulfate esterification reactor with a spherical gas distribution device according to claim 1, characterized in that: The connection assembly (9) comprises a pipe (901) and a connection head (902), the connection head (902) being provided with a fastening thread (903), a mounting head (904) being welded to the injector mounting port (4), the mounting head (904) being provided with a No. 2 fastening thread (905), and the fastening thread (903) being threadedly connected to the No. 2 fastening thread (905).

5. The dimethyl sulfate esterification reactor with a spherical gas distribution device according to claim 3, characterized in that: The sealing gasket (802) is ring-shaped, the inner ring size of the sealing gasket (802) is the same as the inner ring size of the discharge pipe opening (501), and the outer ring size of the sealing gasket (802) is the same as the inner ring size of the installation tube (801).

6. The dimethyl sulfate esterification reactor with a spherical gas distribution device according to claim 4, characterized in that: Connectors (902) are provided on both sides of the pipeline (901), and the inner diameter of the connector (902) is equal to the outer diameter of the mounting head (904).

7. The dimethyl sulfate esterification reactor with a spherical gas distribution device according to claim 4, characterized in that: The fastening thread (903) on the connecting head (902) corresponds to the setting position of the No. 2 fastening thread (905) on the mounting head (904), and the fastening thread (903) and the No. 2 fastening thread (905) have the same spiral direction.

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