CN219232298U

CN219232298U - DMO reactor

Info

Publication number: CN219232298U
Application number: CN202223588294.3U
Authority: CN
Inventors: 秦松; 吴玉琳
Original assignee: Jiangsu Kaimei Purui Engineering Technology Co ltd
Current assignee: Jiangsu Kaimei Purui Engineering Technology Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-23
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a DMO reactor, which comprises a barrel, a raw material gas inlet arranged at the top end of the barrel and extending into the inner cavity of the barrel, a DMO gas outlet arranged at the bottom end of the barrel and extending into the inner cavity of the barrel, a discharge port arranged on the outer side surface of the bottom of the barrel and extending into the inner cavity of the barrel, a screen bracket fixed on the bottom wall of the barrel, porcelain balls arranged above the screen bracket and a catalyst layer arranged above the porcelain balls, wherein the barrel is used for forming a sealed space, so that the catalyst layer is conveniently filled, gas reacted by the raw material gas and the catalyst layer can be collected, the raw material gas inlet is used for introducing the raw material gas into the inner cavity of the barrel, the DMO gas outlet is used for guiding out the DMO gas generated by the reaction, and the discharge port is used for discharging the porcelain balls and the catalyst layer from the barrel.

Description

DMO reactor

Technical Field

The utility model relates to the technical field of synthesis reactors, in particular to a DMO reactor.

Background

The DMO reactor is an important device in a glycol plant for the synthesis of DMO. At present, the DMO reactor comprises an upper tube box, a lower tube box and a barrel, wherein the upper end and the lower end of the barrel are respectively connected and fixed with the upper tube box and the lower tube box, the center of the top end of the upper tube box is provided with a raw material gas inlet, the center of the lower end of the lower tube box is provided with a DMO gas outlet, an upper tube plate is arranged between the barrel and the upper tube box, a lower tube plate is arranged between the barrel and the lower tube box, a plurality of vertically arranged reaction tubes are arranged between the upper tube plate and the lower tube plate, and two ends of each reaction tube are respectively communicated with the upper tube box and the lower tube box. The fully mixed raw material gas enters from a raw material gas inlet and flows into a reaction tube, the raw material gas is catalyzed and synthesized into DMO under proper pressure and temperature in the process of passing through a reaction bed, and DMO gas flows out from a DMO gas outlet through a gas collector.

However, the existing DMO reactor has the following disadvantages: the catalyst is filled in the reaction tube in the inner cavity of the cylinder body, the limitation of the minimum spacing of the distribution tube of the reaction tube is adopted, the overall catalyst filling rate is low, the requirement of the device on large-scale can be met only by enlarging the diameter of the reactor, meanwhile, the heat exchange efficiency is low, and the improvement space exists.

Disclosure of Invention

The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.

The technical scheme adopted by the utility model is as follows: a DMO reactor comprising: the main body module comprises a barrel, a raw material gas inlet arranged at the top end of the barrel and extending into the inner cavity of the barrel, a DMO gas outlet arranged at the bottom end of the barrel and extending into the inner cavity of the barrel, a discharge port arranged on the outer side surface of the bottom of the barrel and extending into the inner cavity of the barrel, a screen plate bracket fixed on the bottom wall of the barrel, a ceramic ball arranged above the screen plate bracket and a catalyst layer arranged above the ceramic ball.

The heat exchange module comprises a liquid outlet pipeline fixed on the outer side surface of the cylinder body and extending into the inner cavity of the cylinder body, a plurality of heat exchange pipes fixed at the bottom end of the liquid outlet pipeline in an array mode, heat conducting plates symmetrically fixed on two sides of the heat exchange plates, a liquid inlet pipeline, and a plurality of liquid discharge pipelines, wherein one end of each liquid inlet pipeline is located at the other end of the inner cavity of the liquid outlet pipeline, extends out of the liquid outlet pipeline and penetrates through the cylinder body, and the liquid discharge pipelines are arranged at the bottom end of the liquid inlet pipeline in an array mode.

The present utility model may be further configured in a preferred example to: the end part of the liquid outlet pipeline, which is positioned in the inner cavity of the cylinder body, is in sealing arrangement.

The present utility model may be further configured in a preferred example to: the bottom end of the heat exchange tube penetrates through the catalyst layer, the top end of the heat exchange tube is communicated with the liquid outlet pipeline, and the bottom end of the heat exchange tube is in sealing arrangement.

The present utility model may be further configured in a preferred example to: the end part of the liquid inlet pipeline, which is positioned in the inner cavity of the liquid outlet pipeline, is in sealing arrangement.

The present utility model may be further configured in a preferred example to: the number of the liquid discharge pipelines is equal to that of the arrays of the heat exchange tubes, and the liquid discharge pipelines are embedded in the inner cavities of the heat exchange tubes.

The present utility model may be further configured in a preferred example to: the top end of the liquid discharge pipeline is communicated with the liquid inlet pipeline.

The present utility model may be further configured in a preferred example to: the bottom end of the liquid discharge pipeline is provided with a through hole.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:

1. in the utility model, the porcelain ball and the catalyst layer are directly filled in the inner cavity of the cylinder, the liquid outlet pipeline and the heat exchange pipe penetrating through the catalyst layer are arranged, meanwhile, the liquid inlet pipeline extending out of the cylinder is arranged in the inner cavity of the liquid outlet pipeline, the plurality of liquid outlet pipelines extending into the heat exchange pipe are arranged at the bottom end of the liquid inlet pipeline, when heat exchange is carried out, cooling liquid enters the liquid outlet pipeline from the liquid inlet pipeline, and is discharged from the bottom end of the liquid outlet pipeline to enter the heat exchange pipe, the cooling liquid flows upwards in the heat exchange pipe to exchange heat with the heat on the heat exchange pipe, and then the cooling liquid absorbing the heat is discharged through the liquid outlet pipeline, so that the filling rate of the catalyst can be effectively improved, and the diameter of the reactor is reduced, so that the reactor is transported and placed.

2. According to the utility model, the heat conducting plates are symmetrically fixed on the two sides of the heat exchange tube, and extend into the catalyst layer, so that the contact area between the heat conducting plates and the catalyst layer is increased, heat generated during the reaction of the catalyst layer can be uniformly transferred to the heat exchange tube, and heat exchange is performed between the heat exchange tube and cooling liquid, so that the heat generated during the reaction of the catalyst layer can be rapidly discharged, the problems of sintering, temperature flying or increased reaction byproducts caused by overhigh temperature of the catalyst layer are avoided, and the heat exchange performance of the reactor is further increased.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic top view of a heat exchange module according to the present utility model;

FIG. 3 is a schematic view of a bottom view of a heat exchange module according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a heat exchange module according to the present utility model;

fig. 5 is a schematic diagram of the structure of the liquid inlet pipe and the liquid outlet pipe according to the present utility model.

Reference numerals:

100. a main body module; 110. a cylinder; 120. a feed gas inlet; 130. DMO gas outlet; 140. a discharge port; 150. a screen plate bracket; 160. porcelain ball; 170. a catalyst layer;

200. a heat exchange module; 210. a liquid outlet pipe; 220. a heat exchange tube; 230. a heat conductive plate; 240. a liquid inlet pipe; 250. a liquid discharge pipe; 251. and a through hole.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

Some embodiments of the utility model are described below with reference to the accompanying drawings,

example 1:

as shown in connection with fig. 1-5, this embodiment provides a DMO reactor comprising: the main body module 100 and the heat exchange module 200.

The main body module 100 comprises a cylinder 110, a raw material gas inlet 120 arranged at the top end of the cylinder 110 and extending into the inner cavity of the cylinder 110, a DMO gas outlet 130 arranged at the bottom end of the cylinder 110 and extending into the inner cavity of the cylinder 110, a discharge port 140 arranged on the outer side surface of the bottom of the cylinder 110 and extending into the inner cavity of the cylinder 110, a screen bracket 150 fixed on the inner bottom wall of the cylinder 110, ceramic balls 160 arranged above the screen bracket 150 and a catalyst layer 170 arranged above the ceramic balls 160.

Barrel 110 is used for forming sealed space, conveniently fills catalyst layer 170, can collect the gaseous collection of raw materials gas and catalyst layer 170 reaction simultaneously, and raw materials gas import 120 is used for leading-in raw materials gas to barrel 110 inner chamber, and DMO gas export 130 is used for deriving the DMO gas that the reaction produced, and discharge port 140 is used for unloading ceramic ball 160 and catalyst layer 170 from barrel 110 in, and otter board bracket 150 is used for holding ceramic ball 160, keeps ceramic ball 160's stability, and ceramic ball 160 is used for fixed catalyst layer 170, and catalyst layer 170 is used for reacting with the raw materials gas, produces DMO gas.

The heat exchange module 200 is used for dissipating heat generated during the reaction of the catalyst layer 170, and comprises a liquid outlet pipe 210 fixed on the outer side surface of the cylinder 110 and extending into the inner cavity of the cylinder 110, a plurality of heat exchange pipes 220 fixed at the bottom end of the liquid outlet pipe 210 in an array, heat conducting plates 230 symmetrically fixed at two sides of the heat exchange plates, a liquid inlet pipe 240 with one end positioned at the other end of the inner cavity of the liquid outlet pipe 210 and extending out of the liquid outlet pipe 210 and penetrating through the cylinder 110, and a plurality of liquid discharge pipes 250 arranged at the bottom end of the liquid inlet pipe 240 in an array.

One end of the liquid outlet pipe 210 extends out of the cylinder 110, the other end is located in the inner cavity of the cylinder 110, and the end portion located in the inner cavity of the cylinder 110 is in a sealing arrangement for discharging the cooling liquid after absorbing heat, and meanwhile, for installing the heat exchange pipe 220.

The top end of the heat exchange tube 220 is communicated with the liquid outlet pipeline 210, and the bottom end of the heat exchange tube 220 is in a sealing arrangement and is used for absorbing heat generated during the reaction of the catalyst layer 170 and exchanging heat with cooling liquid in the inner cavity of the heat exchange tube, and the bottom end of the heat exchange tube 220 penetrates through the catalyst layer 170, so that the heat generated by the catalyst layer 170 can be absorbed uniformly.

One end of the heat conductive plate 230 is fixed to the heat exchanging tube 220, and the other end is extended into the catalyst layer 170, increasing the contact area with the catalyst layer 170, thereby facilitating the heat in the catalyst layer 170 to be transferred to the heat exchanging tube 220 more efficiently.

One end of the liquid inlet pipeline 240 is positioned at the outer side of the cylinder 110, the other end of the liquid inlet pipeline 240 is positioned in the inner cavity of the liquid outlet pipeline 210 and used for installing the liquid outlet pipeline 250, cooling water is simultaneously fed into the liquid outlet pipeline 250, the liquid outlet pipeline 250 and the arrays of the heat exchange tubes 220 are equal in number, the liquid outlet pipeline 250 is embedded in the inner cavity of the heat exchange tubes 220, the top end of the liquid outlet pipeline is communicated with the liquid inlet pipeline 240 and used for discharging cooling liquid to the bottom end of the inner cavity of the heat exchange tubes 220, the cooling liquid can conveniently move upwards from the bottom of the inner cavity of the heat exchange tubes 220, and heat on the heat exchange tubes 220 is absorbed in the moving process of the cooling liquid.

Further, a through hole 251 is formed at the bottom end of the drain pipe 250 for discharging the cooling liquid to the bottom of the inner cavity of the heat exchanging pipe 220.

The working principle and the using flow of the utility model are as follows: when the catalyst is used, raw material gas is fed into the inner cavity of the cylinder 110 from the raw material gas inlet 120, the raw material gas reacts with the catalyst layer 170 to generate DMO gas, the generated DMO gas is discharged through the DMO gas outlet 130, during the reaction of the catalyst layer 170, cooling liquid is fed into the liquid discharge pipeline 250 through the liquid inlet pipeline 240 and then discharged through the through hole 251 at the bottom end of the liquid discharge pipeline 250, and enters the bottom of the heat exchange pipe 220, at the moment, the heat of the catalyst is transferred to the heat exchange pipe 220 through the heat conducting plate 230, the cooling liquid flows in the heat exchange pipe 220 to exchange with the heat on the heat exchange pipe 220, the cooling liquid absorbing the heat on the heat exchange pipe 220 enters the liquid outlet pipeline 210 and is discharged through the liquid outlet pipeline 210, and the cooling of the catalyst is completed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A DMO reactor comprising: the main body module (100) and the heat exchange module (200) are characterized in that the main body module (100) comprises a cylinder body (110), a raw material gas inlet (120) arranged at the top end of the cylinder body (110) and extending into the inner cavity of the cylinder body (110), a DMO gas outlet (130) arranged at the bottom end of the cylinder body (110) and extending into the inner cavity of the cylinder body (110), a discharge port (140) arranged on the outer side surface of the bottom of the cylinder body (110) and extending into the inner cavity of the cylinder body (110), a screen plate bracket (150) fixed on the inner bottom wall of the cylinder body (110), porcelain balls (160) arranged above the screen plate bracket (150) and a catalyst layer (170) arranged above the porcelain balls (160);

the heat exchange module (200) comprises a liquid outlet pipeline (210) fixed on the outer side surface of the barrel (110) and extending into the inner cavity of the barrel (110), a plurality of heat exchange pipes (220) fixed at the bottom end of the liquid outlet pipeline (210) in an array manner, heat conducting plates (230) symmetrically fixed at two sides of the heat exchange plates, a liquid inlet pipeline (240) with one end positioned in the inner cavity of the liquid outlet pipeline (210) and the other end extending out of the liquid outlet pipeline (210) and extending out of the barrel (110), and a plurality of liquid discharge pipelines (250) arranged at the bottom end of the liquid inlet pipeline (240) in an array manner.

2. The DMO reactor of claim 1, wherein said tapping conduit (210) is provided in a sealed arrangement at the end of the interior of the barrel (110).

3. The DMO reactor of claim 1, wherein the bottom end of said heat exchanging tube (220) passes through the catalyst layer (170), and the top end of said heat exchanging tube (220) is connected to the liquid outlet pipe (210), and the bottom end is provided in a sealed manner.

4. The DMO reactor of claim 1, wherein said liquid inlet pipe (240) is provided in a sealed arrangement at the end of the inner cavity of the liquid outlet pipe (210).

5. The DMO reactor of claim 1, wherein the number of drain pipes (250) is equal to the number of arrays of heat exchange pipes (220), and the drain pipes (250) are fitted in the inner cavities of the heat exchange pipes (220).

6. The DMO reactor of claim 1, wherein the top end of said drain pipe (250) is in communication with a feed pipe (240).

7. The DMO reactor of claim 1, characterized in that a through hole (251) is formed at the bottom end of said drain pipe (250).