CN213434370U

CN213434370U - Disc sandwich type micro-channel reactor

Info

Publication number: CN213434370U
Application number: CN202021848386.9U
Authority: CN
Inventors: 李钰龙; 李浩然
Original assignee: Shandong Special Innovation Material Technology Co ltd
Current assignee: Shandong Special Innovation Material Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-15
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a disc sandwich type microchannel reactor, which comprises a reaction cavity, wherein the reaction cavity is provided with at least one feed inlet and at least one discharge outlet, the reaction cavity is formed by connecting a plurality of reaction chambers in series, the shape of each reaction chamber is annular or rhombic or irregular, and the arrangement mode of the reaction cavity in the reactor is an annular mutually-communicated unit; the upper part or the lower part of the reaction cavity is provided with a medium circulation channel which is a wavy or zigzag channel with a plurality of units communicated in sequence. The reactor is provided with the heat exchange channels on the upper side and the lower side of the reaction cavity respectively, so that heat exchange environments with different speeds can be provided for reaction materials, independent dredging of different heat exchange media is realized, accurate temperature control and efficient heat exchange can be realized, the reaction yield is improved, energy is saved, consumption is reduced, and operation steps are simplified.

Description

Disc sandwich type micro-channel reactor

Technical Field

The utility model relates to a chemical reaction, nuclear energy indirect heating equipment field especially relate to an improve reaction efficiency, energy-conserving supplementary potentiating microchannel reactor.

Background

The micro chemical technology has the super heat and mass transfer capacity, and may be used widely in chemical, energy, environment and other fields. The core component is a micro chemical system which is manufactured completely or partially by adopting a micro-processing technology, and micro chemical devices with various functions, such as a micro total analysis system, a micro heat exchanger, a micro mixer, a micro reactor and the like, are derived aiming at different application backgrounds. The microchannel reactor may contain millions of microchannels, thereby achieving high throughput. Due to the internal microstructure, the micro-reactor equipment has extremely large specific surface area which can be hundreds of times or even thousands of times of the specific surface area of the stirring kettle. The micro-reactor has excellent heat transfer and mass transfer capacity, can realize instantaneous uniform mixing of materials and high-efficiency heat transfer, so that a plurality of reactions which cannot be realized in the conventional reactor can be realized in the micro-reactor. Because the existing microchannel reactor is influenced by heat exchange conditions, the reaction rate and the reaction effect can not meet the production requirements, and therefore, the development of the microchannel reactor with high reaction rate and accurate reaction temperature control is urgently needed.

Disclosure of Invention

In view of the above problem, the utility model discloses an improve disc sandwich type microchannel reactor of reaction efficiency, this reactor set up the heat transfer passageway respectively in the upper and lower both sides of reaction cavity, can provide the heat transfer environment of different speeds to reaction material to realize dredging alone of different heat transfer medium, can realize accurate accuse temperature, high-efficient heat transfer, thereby improve reaction yield, energy saving and consumption reduction, simplify the operating procedure.

A disc sandwich type microchannel reactor comprises a reaction cavity, wherein the reaction cavity is provided with at least one feeding hole and at least one discharging hole, the reaction cavity is formed by connecting a plurality of reaction chambers in series, each reaction chamber is annular, rhombic or irregular, and the arrangement mode of the reaction cavities in the reactor is an annular unit which is communicated with one another; the upper part or the lower part of the reaction cavity is provided with a medium circulation channel which is a wavy or zigzag channel with a plurality of units communicated in sequence.

A disc sandwich type microchannel reactor comprises a plurality of reaction cavities, wherein the reaction cavities are sequentially stacked, each reaction cavity is provided with at least one feeding hole and at least one discharging hole, each reaction cavity is formed by connecting a plurality of reaction chambers in series, each reaction chamber is annular, rhombic or irregular, and the reaction cavities are arranged in the reactor in annular mutually communicated units; a medium circulation channel is arranged between the adjacent reaction cavities, the outer side surface of each reactor cavity is also provided with a medium circulation channel, and the medium circulation channels are wave-shaped or clip-shaped channels which are sequentially communicated with the plurality of units.

A disc sandwich type microchannel reactor comprises a reaction cavity, wherein the reaction cavity is provided with at least one feeding hole and at least one discharging hole, the reaction cavity is formed by connecting a plurality of reaction chambers in series, each reaction chamber is annular, rhombic or irregular, and the arrangement of the reaction cavities in the reactor is in a mode of annular units which are mutually communicated; the reaction cavity is characterized in that a refrigerant channel is arranged at the upper part of the reaction cavity, a heat medium channel is arranged at the lower part of the reaction cavity, and the refrigerant channel and the heat medium channel are both wave-shaped or zigzag channels which are sequentially communicated by a plurality of units.

Preferably, the cooling medium channel and the heating medium channel are both provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are positioned at two ends of the reactor.

Preferably, the reaction cavity, the refrigerant channel and the heat medium channel are formed by sequentially connecting and assembling a plurality of shells, namely, the first shell and the second shell form the refrigerant channel, the second shell and the third shell form the reaction cavity, and the third shell and the fourth shell form the heat medium channel.

Preferably, the first shell, the second shell and the third shell are all disc-shaped.

Preferably, the joints of the adjacent shells are fused together by an ultra-high temperature molecular permeation technology, so that the shell is resistant to high temperature and high pressure.

Preferably, the pipeline is connected with special hard ceramics such as silicon carbide and silicon nitride by threads, the former end face pressure link is replaced, the leakage rate is reduced by 85 percent, and the pipeline is easier to disassemble and assemble; the invention breaks through the limitation that the hard ceramics can not be used as screw holes through the ultrasonic technology.

The utility model has the advantages that:

1. the utility model discloses a respectively set up a heat transfer passageway from top to bottom at reaction channel, realized providing the heat transfer environment of different speeds to reaction mass to realize dredging alone of different heat transfer medium, improve heat exchange efficiency, realize accurate accuse temperature, improve target product yield, greatly reduced energy consumption.

2. The medium inlet and the medium outlet are designed into threaded interfaces and are distributed at two ends of the reactor, and the cold and heat media are positioned at different inlets and outlets, so that mutual heat exchange in the same channel is prevented, and the heat exchange efficiency is improved.

3. The reactor is horizontally placed, the previous equipment frame and fixing bolts are omitted, the reactor is more convenient to disassemble, assemble, maintain and repair, and the form of shell assembly is convenient to disassemble and clean each channel to prevent blockage.

4. The reactor can save 75% of equipment space under the condition of the same productivity and the same heat exchange amount, and the higher integration level is favorable for improving the space utilization rate of laboratories and workshops.

5. The disc design of the reactor is more beneficial to the processing of materials on a machine tool, and the processing and manufacturing cost is reduced.

6. The reactor solves the difficult problem of connection between brittle and hard materials and metals which puzzles the industry for many years, adopts high-performance polymer materials such as polytetrafluoroethylene, polyimide and the like to manufacture a threaded joint, and uses ultrasonic waves to process threads on ceramic materials, thereby realizing the high-performance reactor and the heat exchanger which are resistant to high temperature and high pressure, and greatly widening the application field of the device.

7. The reactor (heat exchanger) adopts the side wall to input and output materials and heat exchange media, the improvement is that the reactor (heat exchanger) is more compact in installation and smaller in volume due to the existing material input and output by the upper end surface and the lower end surface, the later integration optimization is facilitated, the space is saved, and the close combination increases the heat exchange efficiency, so that the reactor (heat exchanger) is more energy-saving.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 1;

1. the reaction device comprises a cooling medium channel, 2, a reaction cavity, 3, a heating medium channel, 4, a cooling medium feeding hole, 5, a cooling medium discharging hole, 6, a first feeding hole, 7, a second feeding hole, 8, a discharging hole, 9, a heating medium feeding hole, 10 and a heating medium discharging hole.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

The utility model discloses a disc sandwich type microchannel reactor as shown in figures 1-4, the material adopts: special ceramics such as silicon carbide, silicon nitride and corundum, glass, various metals and the like. The reactor is sequentially provided with a first shell, a second shell, a third shell and a fourth shell from top to bottom, and the joint of the adjacent shells is provided with a sealing gasket for preventing leakage. A refrigerant channel 1 is formed between the first shell and the second shell, the refrigerant channel is a plurality of wave-shaped channels which are sequentially communicated, a refrigerant inlet 4 is arranged at one end of the reactor, and a refrigerant outlet 5 is arranged at the other end of the reactor. A reaction cavity 2 is formed between the second shell and the third shell, the reaction cavity is formed by connecting a plurality of reaction chambers in series, each reaction chamber is annular, and the arrangement mode of the reaction cavity in the reactor is a mutually communicated concentric circle mode; the reaction cavity is provided with a first feeding hole 6, a second feeding hole 7 and a discharging hole 8, and the three openings are all arranged on the periphery of the reactor. The lower part of the reaction cavity is provided with a heat medium channel 3, the heat medium channel is a plurality of sequentially communicated loop-shaped channels, one end of the reactor is provided with a heat medium feed inlet 9 in the same direction as the refrigerant feed inlet, and the other end of the reactor is provided with a heat medium discharge outlet 10 in the same direction as the refrigerant feed inlet.

This novel respectively set up a heat transfer passageway from top to bottom at material reaction channel, logical cold medium or hot medium in the passageway for to material heat transfer or trade cold two kinds of modes, complementary influence improves heat transfer medium's purity, is favorable to cyclic utilization.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A disc sandwich type microchannel reactor is characterized by comprising a reaction cavity, wherein the reaction cavity is provided with at least one feeding hole and at least one discharging hole, the reaction cavity is formed by connecting a plurality of reaction chambers in series, each reaction chamber is annular or polygonal, and the arrangement mode of the reaction cavity in the reactor is annular units which are mutually communicated; the upper part or the lower part of the reaction cavity is provided with a medium circulation channel which is a wavy or zigzag channel with a plurality of units communicated in sequence.

2. A disc sandwich type microchannel reactor is characterized by comprising a plurality of reaction cavities, wherein the reaction cavities are sequentially stacked, the reaction cavities are provided with at least one feeding hole and at least one discharging hole, the reaction cavities are formed by connecting a plurality of reaction chambers in series, each reaction chamber is annular or polygonal, and the arrangement of the reaction cavities in the reactor is in an annular mutually communicated unit; a medium circulation channel is arranged between the adjacent reaction cavities, the outer side surface of each reactor cavity is also provided with a medium circulation channel, and the medium circulation channels are wave-shaped or clip-shaped channels which are sequentially communicated with the plurality of units.

3. A disc sandwich type microchannel reactor is characterized by comprising a reaction cavity, wherein the reaction cavity is provided with at least one feeding hole and at least one discharging hole, the reaction cavity is formed by connecting a plurality of reaction chambers in series, each reaction chamber is annular or polygonal in shape, and the arrangement of the reaction cavities in the reactor is in annular mutually communicated units; the reaction cavity is characterized in that a refrigerant channel is arranged at the upper part of the reaction cavity, a heat medium channel is arranged at the lower part of the reaction cavity, and the refrigerant channel and the heat medium channel are both wave-shaped or zigzag channels which are sequentially communicated by a plurality of units.

4. The disc sandwich type microchannel reactor according to claim 3, wherein the cooling medium channel and the heating medium channel are provided with a medium inlet and a medium outlet, and the medium inlet and the medium outlet are located at both ends of the reactor.

5. The disc sandwich type microchannel reactor according to claim 3, wherein the reaction chamber, the cooling medium channel and the heating medium channel are all formed by sequentially connecting a plurality of shells and assembling the shells with each other, i.e. the first shell and the second shell form the cooling medium channel, the second shell and the third shell form the reaction chamber, and the third shell and the fourth shell form the heating medium channel.

6. The disc sandwich type microchannel reactor of claim 5, wherein the first housing, the second housing, and the third housing are each disc-shaped.