CN214636446U

CN214636446U - Improved reaction device

Info

Publication number: CN214636446U
Application number: CN202023161238.2U
Authority: CN
Inventors: 董暁婧; 崔家铭; 黄光亮; 李典正
Original assignee: Shaoxing Shangyu Hualun Chemical Industry Co ltd
Current assignee: Shaoxing Shangyu Hualun Chemical Industry Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-09
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a modified reaction unit, include: a housing provided with a heating medium inlet and a heating medium outlet; the first end cover and the second end cover are used for plugging two ends of the shell, the first feeding port and the second feeding port are arranged on the first end cover, and the first end cover and the second end cover are connected with a discharging port of the second end cover; a plurality of reaction tubes disposed within the housing; and the mixer is arranged in the first end cover, and uniform liquid passing holes are distributed in the mixer. The utility model discloses an in the reaction unit, be provided with the blender for the multiple material that makes the entering mixes the back completely and reacts, and sets up crooked heat transfer medium route, makes the material heating in the reaction tube even, improves the product yield.

Description

Improved reaction device

Technical Field

The utility model relates to a reactor especially relates to a modified reaction unit.

Background

The reactor is a device for realizing the reaction process and is widely applied to the fields of chemical industry, oil refining, metallurgy and the like. The reactor is used for realizing a liquid phase single phase reaction process and a liquid-liquid, gas-liquid, liquid-solid, gas-liquid-solid and other multi-phase reaction processes. Stirring devices (such as mechanical stirring and gas flow stirring) are usually arranged in the reactor. When the height-diameter ratio is larger, a plurality of layers of stirring blades can be used. When the materials need to be heated or cooled in the reaction process, a jacket can be arranged on the wall of the reactor, or a heat exchange surface is arranged in the reactor, or heat exchange can be carried out through external circulation.

The pipeline reactor is a tubular continuous operation reactor with a large length-diameter ratio, the pipe diameter of the pipe reactor is small, the reaction materials in the reactor in unit time are less than those in an intermittent reaction kettle, the heat exchange efficiency is greatly improved compared with a common reaction kettle, the conditions of over-temperature and over-pressure and the like can be rapidly controlled, and even if abnormity occurs, because the absolute quantity of the materials is less, the released energy is less, the harm is less, the pipeline reactor can be popularized, and the safety production environment of the fine chemical industry can be greatly improved.

To achieve continuous performance of the reaction, patent application publication No. CN 205164690U provides an intelligent industrial microchannel continuous reactor comprising: the reaction tube is arranged in the shell, the inner cavity of the reaction tube is a tube side, a cavity between the shell and the reaction tube becomes a shell side, the raw material inlet and the product outlet are communicated with the tube side, and the heat carrier inlet and the heat carrier outlet are communicated with the shell side; the reactor is characterized in that a three-dimensional micro-channel assembly is tightly inserted in the reaction tube, and a plurality of micron/mm-level (micrometer or millimeter-level) micro-channels which are communicated all the time are formed between the outer surface of the three-dimensional micro-channel assembly and the inner wall surface of the reaction tube.

The continuous reactor is not suitable for continuous reaction of large-batch raw materials because the introduced materials are not completely mixed and the heating temperature distribution is not uniform.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a modified reaction unit solves and lets in the reaction raw materials and not complete mixing reaction to and the uneven scheduling problem of heating in the reaction tube.

The utility model discloses a specific technical scheme as follows:

an improved reaction apparatus comprising:

a housing provided with a heating medium inlet and a heating medium outlet;

the first end cover and the second end cover are used for plugging two ends of the shell, the first feeding port and the second feeding port are arranged on the first end cover, and the first end cover and the second end cover are connected with a discharging port of the second end cover;

a plurality of reaction tubes disposed within the housing;

and the mixer is arranged in the first end cover, and uniform liquid passing holes are distributed in the mixer.

Utilize in this application to set up the blender in reaction unit's pan feeding mouth department, with two kinds of reaction liquid misce benes of first pan feeding mouth and second pan feeding mouth input, reentrant reaction tube makes the raw materials intensive mixing back, improves the reaction yield.

Preferably, the mixer is a porous arc-shaped plate and is positioned between the two feeding ports and the end part of the reaction tube. The arc-shaped plate has a blocking effect, so that the input raw materials are prevented from directly entering the reaction tube, and the two materials are mixed.

Preferably, the reaction tubes are arranged in an array, and two adjacent reaction tubes are spaced at equal intervals.

Preferably, the heating medium inlet and the heating medium outlet are distributed on both sides of the housing, and the heating medium has a curved flow path within the housing.

The curved flow path is arranged, so that the heat exchange medium can fully heat the reaction tube and raise the reaction temperature to the required reaction temperature.

Preferably, the heating medium inlet is close to the top of the shell, the heating medium outlet is close to the bottom of the shell, and a plurality of layers of baffles which are arranged in a staggered mode are arranged in the shell.

In the application, a plurality of layers of baffles which are arranged in a staggered mode are arranged, so that a bent heat exchange medium flow path is formed.

Preferably, the reaction tube passes through the baffle plates, two adjacent baffle plates have a partial overlapping area, and the width of each baffle plate is more than 0.5 times of the inner diameter of the shell.

The utility model discloses an in the reaction unit, be provided with the blender for the multiple material that makes the entering mixes the back completely and reacts, and sets up crooked heat transfer medium route, makes the material heating in the reaction tube even, improves the product yield.

Drawings

FIG. 1 is a schematic diagram of an improved reaction apparatus according to the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the present invention is not limited to the specific embodiments disclosed below. The terms "upper", "lower", "left" and "right" used herein are defined with reference to the accompanying drawings, and it is to be understood that the above-described terms do not limit the scope of the present invention.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like 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 drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, an improved reaction apparatus comprises: a housing 1 provided with a heating medium inlet 4 and a heating medium outlet 5; the device comprises a first end cover 2 and a second end cover 3 for plugging two ends of the shell 1, a first feeding port 6 and a second feeding port 7 which are arranged on the first end cover 2, and a discharging port 9 connected with the second end cover 3; a plurality of reaction tubes 10 disposed in the housing 1; install blender 8 in first end cover 2, it has even liquid hole of crossing to distribute on the blender 8. A mixer 8 is arranged at a material inlet of the reaction device, two reaction liquids input from a first material inlet 6 and a second material inlet 7 are uniformly mixed and then enter a reaction tube 10, so that the raw materials are fully mixed and then react, and the yield is improved.

In another preferred embodiment, the mixer 8 is a perforated arc-shaped plate located between the two inlet openings and the ends of the reaction tubes. The arc-shaped plate has a blocking effect, so that the input raw materials are prevented from directly entering the reaction tube, and the two materials are mixed.

In this embodiment, the reaction tubes 10 are arranged in an array, and the adjacent reaction tubes 10 are spaced at equal intervals. The heating medium inlet 4 and the heating medium outlet 5 are distributed on both sides of the housing 1, and the heating medium has a curved flow path within the housing 1. The curved flow path is arranged, so that the heat exchange medium can fully heat the reaction tube and raise the reaction temperature to the required reaction temperature.

In another embodiment, the heating medium inlet 4 is near the top of the shell 1, the heating medium outlet 5 is near the bottom of the shell 1, and a plurality of layers of baffles 11 are arranged in the shell 1 in a staggered mode. Namely, by providing a plurality of layers of baffle plates 11 arranged in a staggered manner, a curved heat exchange medium flow path is formed. Preferably, the reaction tube 10 passes through the baffle 11, two adjacent layers of the baffle 11 have a partial overlapping area, and the width of the baffle 11 is more than 0.5 times of the inner diameter of the shell 1.

The above description is only exemplary of the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the present invention.

Claims

1. An improved reaction apparatus, comprising:

a housing provided with a heating medium inlet and a heating medium outlet;

a plurality of reaction tubes disposed within the housing;

2. The reactor apparatus of claim 1 wherein said mixer is a perforated arcuate plate positioned between the two feed ports and the ends of the reactor tube.

3. The reaction device of claim 1, wherein the reaction tubes are arranged in an array, and two adjacent reaction tubes are spaced at equal intervals.

4. The reactor device according to claim 1, wherein the heating medium inlet and the heating medium outlet are distributed on both sides of the housing, and the heating medium has a curved flow path inside the housing.

5. The reactor device of claim 4, wherein the heating medium inlet is near the top of the shell, the heating medium outlet is near the bottom of the shell, and a plurality of layers of baffles which are arranged in a staggered mode are arranged in the shell.

6. The reactor apparatus as claimed in claim 1, wherein the reactor tubes pass through baffles, two adjacent baffles have a partial overlapping area, and the width of the baffles is greater than 0.5 times the inner diameter of the shell.