CN105642220B - The circulating injection reactor of multi-ladder - Google Patents

The circulating injection reactor of multi-ladder Download PDF

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Publication number
CN105642220B
CN105642220B CN201610004376.9A CN201610004376A CN105642220B CN 105642220 B CN105642220 B CN 105642220B CN 201610004376 A CN201610004376 A CN 201610004376A CN 105642220 B CN105642220 B CN 105642220B
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ladder
circulation pipe
equal
diaphragm
ladder circulation
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CN105642220A (en
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张锋
张志炳
齐敏
罗华勋
周政
巫先坤
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Nanjing University
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Nanjing University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/26Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles

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  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The invention discloses a kind of circulating injection reactor of ladder.The circulating injection reactor of ladder includes:There is reaction chamber, the wall of the reaction chamber is provided with charging aperture, discharging opening, circulation discharging opening and recycle feed mouthful in body, the body;Playpipe, the playpipe is extend into the reaction chamber by the recycle feed mouthful;Outer circulating tube, the first end of the outer circulating tube is connected with the circulation discharging opening, the second end of the outer circulating tube and the inlet communication of the playpipe;Circulating pump, the circulating pump is located on the outer circulating tube;With ladder circulation pipe, the ladder circulation pipe is located in the reaction chamber, and the port of export of the playpipe is extend into the ladder circulation pipe by the import of the ladder circulation pipe.The circulating injection reactor of ladder according to embodiments of the present invention has that mixed performance is excellent, low power consumption and other advantages.

Description

The circulating injection reactor of multi-ladder
Technical field
The present invention relates to reactor, in particular to the circulating injection reactor of ladder.
Background technology
Injection reactor is a kind of reactor types with high intensity mixed effect, it by fluid high-speed injection so as to It is sufficiently mixed so that can mutually cut into molecule between reactant, the contact area between increase each phase of reactant, energy Enough strengthen heat and mass transport, accelerate reaction rate, improve concentration and Temperature Distribution, suppress side reaction, improve the selectivity of reaction, Therefore injection reactor is particularly suitable for the heterogeneous reaction process such as gas-liquid, liquid liquid.With economic development and commercial production scale Expand and reduce the requirement of energy consumption, injection reactor also increasingly requires to tend to maximization, the variation of internal structure.
But in amplification process, injection reactor is restricted by two key factors, one is the useful effect depth of jet Degree, two be effective mixing radius of jet.If that is, when the height of reactor and too big radius size, it will cause The decline of injector mixed performance, finally influences reaction effect.Such as remain to protect after reactor volume is greatly improved to realize The high turbulence and excellent mixed performance of fluid are held, then must strengthen the power of motor of jet circulating system significantly, and this is past Past is nonlinear.That is, when reactor reaches a constant volume, supporting circulating pump motor power consumption is held with reactor Accumulate into non-linear relation ---this is determined by the structure of injector.Therefore, otherwise existing injection reactor Combination Can be good, but high energy consumption, or energy consumption is relatively low, but mixed performance is bad.
Traditional injection reactor is merely able to be formed injection stream, and still have in the end of injection stream considerable kinetic energy and Potential energy is not directed to use, cause the reaction chamber of reactor lower end reactant disturbance it is very uneven, this can cause Many kinetic energy and potential energy are heat energy, so that the capacity usage ratio reduction of reaction, and reaction uncontrollability is increased Plus.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, one object of the present invention It is to propose a kind of circulating injection reactor of the ladder for having the advantages that mixed performance is excellent, energy consumption is low.
The circulating injection reactor of ladder according to embodiments of the present invention includes:There is reaction chamber in body, the body, The wall of the reaction chamber is provided with charging aperture, discharging opening, circulation discharging opening and recycle feed mouthful;Playpipe, the playpipe leads to The recycle feed mouthful is crossed to extend into the reaction chamber;Outer circulating tube, the first end of the outer circulating tube is recycled with described Material mouth is connected, the second end of the outer circulating tube and the inlet communication of the playpipe;Circulating pump, the circulating pump is located at described On outer circulating tube;With ladder circulation pipe, the ladder circulation pipe is located in the reaction chamber, and the port of export of the playpipe passes through The import of the ladder circulation pipe is extend into the ladder circulation pipe.
The circulating injection reactor of ladder according to embodiments of the present invention has that mixed performance is excellent, low power consumption and other advantages.
In addition, the circulating injection reactor of ladder according to embodiments of the present invention can also have technology additional as follows special Levy:
According to one embodiment of present invention, the discharging opening is located at the top of the charging aperture, the circulation discharging opening On the bottom wall for being located at the reaction chamber, the recycle feed mouthful is located on the roof of the reaction chamber, the playpipe and described Ladder circulation pipe is vertically set, wherein the longitudinal section of the ladder circulation pipe is rectangle.
According to one embodiment of present invention, the ladder circulation pipe is multiple, and the port of export of the playpipe passes through position It is extend into the import of the ladder circulation pipe of the top in the ladder circulation pipe of the top, it is two neighboring described The port of export of above one in ladder circulation pipe passes through underlying in the two neighboring ladder circulation pipe The import of one is extend into underlying one in the two neighboring ladder circulation pipe.
According to one embodiment of present invention, multiple ladder circulation pipes from top to bottom for first order ladder circulation pipe, Second level ladder circulation pipe ... and N grades of ladder circulation pipes, N is the integer more than or equal to 2, wherein the two neighboring rank Under above one in terraced circulation pipe is being located in upper level ladder circulation pipe, the two neighboring ladder circulation pipe One of side is next stage ladder circulation pipe, and the upper level ladder circulation pipe is extend into the next stage ladder circulation pipe The ratio of diameter of length and the next stage ladder circulation pipe of part be more than or equal to 0.1 and less than or equal to 0.3.
According to one embodiment of present invention, the diameter of each ladder circulation pipe be more than or equal to 5 millimeters and less than etc. In 200 millimeters, a diameter of d0 of the playpipe, a diameter of d1 of the first order ladder circulation pipe, the second level ladder A diameter of d2 ... ... of circulation pipe, a diameter of dn of the N grades of ladder circulation pipes, wherein the diameter of the playpipe and many The diameter of the individual ladder circulation pipe meets relationship below:
According to one embodiment of present invention, the length of the first order ladder circulation pipe is h1, the second level ladder The length of circulation pipe is h2 ... ..., and the length of the N grades of ladder circulation pipes is hn, wherein the h1 is more than or equal to 100 millimeters And less than or equal to 1000 millimeters, the length of multiple ladder circulation pipes meets relationship below:
According to one embodiment of present invention, the circulating injection reactor of the ladder further comprises:First water conservancy diversion every Plate, first diaphragm is the first cavity that is round table-like, being opened wide with top and bottom in first diaphragm, First diaphragm is set on the playpipe, first diaphragm and the playpipe and the reaction chamber Wall is spaced apart;With the second diaphragm, second diaphragm have to be round table-like, in second diaphragm upper end and The second cavity that lower end is opened wide, second diaphragm is set on the ladder circulation pipe, second diaphragm It is spaced apart with the wall of the ladder circulation pipe and the reaction chamber.
According to one embodiment of present invention, the ladder circulation pipe be multiple and described second diaphragm be it is multiple, Multiple second diaphragms are set on multiple ladder circulation pipes correspondingly.
According to one embodiment of present invention, the drift angle of first diaphragm is 60 degree of -120 degree, and described first is empty Chamber is round table-like, and the diameter of the upper end of first cavity is more than or equal to 1.05 with the ratio of the diameter of the playpipe and is less than Equal to 1.2, the outer of first diaphragm and the distance of the wall of the reaction chamber and the ratio of the diameter of the body are big In equal to 0.01 and less than or equal to 0.05, the distance of the outer of first diaphragm and the wall of the reaction chamber is more than 0 milli Rice and less than or equal to 30 millimeters;The drift angle of second diaphragm is 60 degree of -120 degree, and second cavity is round table-like, institute The diameter of upper end for stating the second cavity is more than or equal to 1.05 and less than or equal to 1.2 with the ratio of the diameter of the ladder circulation pipe, The outer of second diaphragm is more than or equal to the distance of the wall of the reaction chamber and the ratio of the diameter of the body 0.01 and less than or equal to 0.05, the outer of second diaphragm is more than 0 millimeter and small with the distance of the wall of the reaction chamber In equal to 30 millimeters, wherein the upper edge for the second diaphragm being set on the upper level ladder circulation pipe and the next stage The ratio of the distance on the upper edge of ladder circulation pipe and the diameter of the next stage ladder circulation pipe is more than or equal to 1 and less than or equal to 5.
According to one embodiment of present invention, the circulating injection reactor of the ladder further comprises:First drainage tube, The lower edge of first drainage tube with, along being connected, first draining-tube cover is located at the injection on first diaphragm It is spaced apart on pipe and with the playpipe, the height of first drainage tube and the ratio of the diameter of the upper end of first cavity More than or equal to 0.1 and less than or equal to 0.3;With the second drainage tube, the lower edge of second drainage tube and second diaphragm On along be connected, second draining-tube cover is located on the ladder circulation pipe and is spaced apart with the ladder circulation pipe, described The ratio of the height of second drainage tube and the diameter of the upper end of second cavity is more than or equal to 0.1 and less than or equal to 0.3.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined Substantially and be readily appreciated that, wherein:
Fig. 1 is the structural representation of the circulating injection reactor of ladder according to embodiments of the present invention;
Fig. 2 is the partial structural diagram of the circulating injection reactor of ladder according to embodiments of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right The limitation of the present invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying and be relative Importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be with bright Show or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " contain Justice is two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can To be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.
The circulating injection reactor 10 of ladder according to embodiments of the present invention is described below with reference to Fig. 1 and Fig. 2.Such as Fig. 1 and Shown in Fig. 2, the circulating injection reactor 10 of ladder according to embodiments of the present invention includes body 101, playpipe 102, outer circulation Pipe 103, circulating pump 104 and ladder circulation pipe 105.
There is reaction chamber 1011, the wall of reaction chamber 1011 is provided with charging aperture 1012, discharging opening 1013, followed in body 101 Ring discharging opening 1014 and recycle feed mouthful, playpipe 102 are extend into reaction chamber 1011 by recycle feed mouthful.Outer circulating tube 103 first end is connected with circulation discharging opening 1014, the second end of outer circulating tube 103 and the inlet communication of playpipe 102, circulation Pump 104 is located on outer circulating tube 103.Ladder circulation pipe 105 is located in reaction chamber 1011, and the port of export of playpipe 102 passes through rank The import of terraced circulation pipe 105 is extend into ladder circulation pipe 105.
The circulating injection reactor 10 of ladder according to embodiments of the present invention is briefly described below with reference to Fig. 1 and Fig. 2 The course of work.Material liquid is added in reaction chamber 1011 by charging aperture 1012, and open the circulation pump 104 circulates so as to material liquid. Wherein it is possible to add material liquid while open the circulation pump 104, can also add and circulating pump 104 is then turned on after material liquid.It is former Feed liquid can be entered in playpipe 102 by outer circulating tube 103, and sprays to be sprayed from the outlet of playpipe 102 Reaction.
In injection course of reaction, when outlet of the working fluid through playpipe 102 of certain pressure is sprayed, high velocity stream is formed Body, pressure drop is formed around the outlet of playpipe 102.Because the outlet of playpipe 102 is located in ladder circulation pipe 105, Therefore the reactant of surrounding can be made to be inhaled into ladder circulation pipe 105 and be mixed in ladder circulation pipe 105, i.e., ladder is circulated Pipe 105 can play a part of reinforcing mixing.The reactant for leaving ladder circulation pipe 105 is entered in reaction chamber 1011, and Hybrid reaction again in reaction chamber 1011.
That is, the circulating injection reactor 10 of ladder according to embodiments of the present invention is to utilize playpipe 102 and rank Terraced circulation pipe 105 sprays mixed reactant (such as liquid liquid, liquid are solid) with certain pressure, in the outlet of playpipe 102 And producing pressure drop around the outlet of ladder circulation pipe 105 so that the reactant around it enters ladder circulation pipe 105 by volume inspiration Interior progress reinforcing mixing, and ladder circulation pipe 105 can also play a part of water conservancy diversion.
In other words, reactant (material liquid) is quickly sprayed by playpipe 102 forms jet, and the jet has powerful kinetic energy Impact downwards, the reactant of the bottom of reaction chamber 1011 can be then extruded to overflow, and the quick outflow of liquid can form space, from And have other parts liquid and be supplemented in, it thus form circulation cycle.By that analogy, ladder circulation pipe 105 can also be formed The systemic circulation for including multilayer partial circulating will be formed in the partial circulating of itself, i.e., whole reaction chamber 1011.So not only cause whole Reactant in reaction chamber 1011 is sufficiently mixed, reacted, and is conducive to being uniformly distributed for energy, does not result in part The situation of overheat.
The circulating injection reactor 10 of ladder according to embodiments of the present invention is by setting ladder circulation pipe 105 and making injection The outlet of pipe 102 is extend into ladder circulation pipe 105, so as to utilize ladder circulation pipe 105 to anti-in reaction chamber 1011 Thing reinforcing mixing is answered, the energy that ladder circulation pipe 105 is sufficiently used circulating liquid realizes reaction and the reinforcing of mass transfer.By This can not only make various reactants in reaction chamber 1011 rapidly, be sufficiently mixed to improve reaction efficiency, Er Qieke To reduce energy consumption of reaction.That is, the circulating injection reactor 10 of ladder according to embodiments of the present invention can abundant land productivity With injection flow point energy, power consumption is reduced.
Therefore, the circulating injection reactor 10 of ladder according to embodiments of the present invention has that mixed performance is excellent, energy consumption is low The advantages of.
As depicted in figs. 1 and 2, discharging opening 1013 is located at the top of charging aperture 1012.Thus the circulating injection reaction of ladder Device 10 can constantly discharge, to realize continuous production after circular response is carried out from discharging opening 1013.That is, rank The circulating injection reactor 10 of ladder can be produced continuously again with Batch Process.Advantageously, charging aperture 1012 is adjacent to reaction chamber 1011 bottom wall, discharging opening 1013 is adjacent to the roof of reaction chamber 1011, and the outlet of playpipe 102 is located at the liquid in reaction chamber 1011 The lower section in face.Wherein, above-below direction is as shown in the arrow A in Fig. 1.
In some embodiments of the invention, as depicted in figs. 1 and 2, circulation discharging opening 1014 is located at reaction chamber 1011 On bottom wall, recycle feed mouthful is located on the roof of reaction chamber 1011, and playpipe 102 and ladder circulation pipe 105 are vertically set, its The longitudinal section of middle ladder circulation pipe 105 is rectangle or similar rectangle.
Body 101 can have heat exchange jacket.The roof of reaction chamber 1011 can be provided with atmospheric valve.Thus work beginning when In the transferring raw material liquid into reaction chamber 1011, the atmospheric valve can be opened to be conducive to the addition of material liquid.Reaction chamber 1011 bottom can be provided with silk screen, in the presence of having bulky grain solid, and the silk screen can prevent bulky grain solid from entering circulation Pump 104, so as to avoid causing circulating pump 104 damage.
Heat exchanger can be provided with outer circulating tube 103, will pass through the reaction that liquid temperature control device controls reactant Temperature.Circulating pump 104 provides power for reactant, allows reactant (working fluid) repeatedly to circulate, thorough to reaction is arrived.
As depicted in figs. 1 and 2, in some embodiments of the invention, ladder circulation pipe 105 can be multiple.Ladder is followed Endless tube 105 can be designed as different series (i.e. number) according to real reaction situation.Advantageously, ladder circulation pipe 105 can be with It is 1-5.
The port of export (lower end) of playpipe 102 is stretched into by the import (upper end) of the ladder circulation pipe 105 positioned at the top To in the ladder circulation pipe 105 of the top.The port of export of above one in two neighboring ladder circulation pipe 105 (lower end) extend into two neighboring rank by the import (upper end) of underlying one in two neighboring ladder circulation pipe 105 In underlying one in terraced circulation pipe 105.Wherein, above one in two neighboring ladder circulation pipe 105 For upper level ladder circulation pipe 105, underlying one in two neighboring ladder circulation pipe 105 circulates for next stage ladder Pipe 105.
Each ladder circulation pipe 105 can form the partial circulating of itself.Specifically, the working fluid of certain pressure is through upper one During the outlet injection of level ladder circulation pipe 105, high-velocity fluid, the shape around the outlet of upper level ladder circulation pipe 105 are formed Into pressure drop.Because the outlet of upper level ladder circulation pipe 105 is located in next stage ladder circulation pipe 105, therefore week can be made The reactant enclosed is inhaled into next stage ladder circulation pipe 105 and mixed in next stage ladder circulation pipe 105, i.e. next stage rank Terraced circulation pipe 105 can play a part of reinforcing mixing.The reactant for leaving the ladder circulation pipe 105 of bottom enters reaction In chamber 1011, and the hybrid reaction again in reaction chamber 1011.
By setting multiple ladder circulation pipes 105, so as to further strengthen mixed to the reactant in reaction chamber 1011 Close.Thus the various reactants in reaction chamber 1011 can not only more rapidly, more fully mixed so as to further Reaction efficiency is improved, and can further reduce energy consumption of reaction.
Advantageously, the length of the part extending into next stage ladder circulation pipe 105 of upper level ladder circulation pipe 105 with The ratio of the diameter of next stage ladder circulation pipe 105 is more than or equal to 0.1 and less than or equal to 0.3.That is, upper level ladder is followed The length of the part extending into next stage ladder circulation pipe 105 of endless tube 105 is the diameter of next stage ladder circulation pipe 105 0.1-0.3 times.
Multiple ladder circulation pipes 105 are first order ladder circulation pipe 105, second level ladder circulation pipe from top to bottom 105th ... with N grades of ladder circulation pipes 105, N is the integer more than or equal to 2.The diameter of each ladder circulation pipe 105 is more than etc. In 5 millimeters and less than or equal to 200 millimeters, a diameter of d0 of playpipe 102, a diameter of d1 of first order ladder circulation pipe 105, the A diameter of d2 ... ... of two grades of ladder circulation pipes 105, a diameter of dn's of N grades of ladder circulation pipes 105, wherein playpipe 102 The diameter of diameter and multiple ladder circulation pipes 105 meets relationship below:
The length of first order ladder circulation pipe 105 is h1, and the length of second level ladder circulation pipe 105 is h2 ... ..., N The length of level ladder circulation pipe 105 is hn, and wherein h1 is more than or equal to 100 millimeters and less than or equal to 1000 millimeters, and multiple ladders are followed The length of endless tube 105 meets relationship below:
As depicted in figs. 1 and 2, the upper end of each ladder circulation pipe 105 can be configured to it is horn-like, it is possible thereby to preferably Water conservancy diversion reactant.That is, the upper end of each ladder circulation pipe 105 can be rounding mesa-shaped, the bus of the inverted round stage is with being somebody's turn to do The angle of the axis (i.e. the axis of ladder circulation pipe 105) of inverted round stage is 30 degree of -60 degree.Wherein, each ladder circulation pipe 105 Except the longitudinal section of the remainder of upper end is rectangle or similar rectangle.
As depicted in figs. 1 and 2, in some examples of the present invention, the circulating injection reactor 10 of ladder further comprises First diaphragm 106 and the second diaphragm 107.First diaphragm 106 is round table-like, is had in the first diaphragm 106 Have top and bottom unlimited the first cavity 1061, the first diaphragm 106 is set on playpipe 102, the first water conservancy diversion every Plate 106 is spaced apart with the wall of playpipe 102 and reaction chamber 1011.Second diaphragm 107 is round table-like, the second diaphragm The second cavity 1071 opened wide with top and bottom in 107, the second diaphragm 107 is set on ladder circulation pipe 105, Second diaphragm 107 is spaced apart with the wall of ladder circulation pipe 105 and reaction chamber 1011.It is possible thereby to make in reaction chamber 1011 Reactant is more quickly and uniformly mixed.
In the specific example of the present invention, the drift angle of the first diaphragm 106 is 60 degree of -120 degree, i.e. the first water conservancy diversion The angle of the axis of the bus of dividing plate 106 and the first diaphragm 106 is 30 degree of -60 degree.First cavity 1061 is round table-like, and the The ratio of the diameter (unit can be millimeter) of the upper end of one cavity 1061 and the diameter (unit can be millimeter) of playpipe 102 More than or equal to 1.05 and less than or equal to 1.2.(unit can for the distance of the outer of first diaphragm 106 and the wall of reaction chamber 1011 To be millimeter) it is more than or equal to 0.01 and less than or equal to 0.05, first with the ratio of the diameter (unit can be millimeter) of body 101 The distance of the outer of diaphragm 106 and the wall of reaction chamber 1011 is more than 0 millimeter and less than or equal to 30 millimeters.
The drift angle of second diaphragm 107 is 60 degree -120 and spends, i.e. the bus and the second water conservancy diversion of the second diaphragm 107 every The angle of the axis of plate 107 is 30 degree of -60 degree.Second cavity 1071 is round table-like, and the diameter of the upper end of the second cavity 1071 is (single Position can be millimeter) with the ratio of the diameter (unit can be millimeter) of ladder circulation pipe 105 be more than or equal to 1.05 and less than etc. In 1.2.The outer of second diaphragm 107 and the distance (unit can be millimeter) and body 101 of the wall of reaction chamber 1011 The ratio of diameter (unit can be millimeter) is more than or equal to 0.01 and less than or equal to 0.05, the outer of the second diaphragm 107 with The distance of the wall of reaction chamber 1011 is more than 0 millimeter and less than or equal to 30 millimeters.
Wherein, the diameter of the perforate of the upper end of a diameter of first diaphragm 106 of the upper end of the first cavity 1061, second The diameter of the perforate of the upper end of a diameter of second diaphragm 107 of the upper end of cavity 1071.
The upper edge for the second diaphragm 107 being set on upper level ladder circulation pipe 105 and next stage ladder circulation pipe (unit can for the diameter apart from H1 (as shown in Fig. 2 unit can be millimeter) and next stage ladder circulation pipe 105 on 105 upper edge To be millimeter) ratio be more than or equal to 1 and less than or equal to 5.
As depicted in figs. 1 and 2, in one embodiment of the invention, the second diaphragm 107 is multiple, and multiple second Diaphragm 107 is set on multiple ladder circulation pipes 105 correspondingly.That is, the quantity of the second diaphragm 107 Equal to the quantity of ladder circulation pipe 105, and second diaphragm 107 is set on a ladder circulation pipe 105.First leads Reaction chamber 1011 is divided into several reaction zones interconnected by stream dividing plate 106 and multiple second diaphragms 107 from bottom to top Domain.
In the example of the present invention, as depicted in figs. 1 and 2, the circulating injection reactor 10 of ladder further comprises First drainage tube 1081 and the second drainage tube 1082.
The lower edge of first drainage tube 1081 with along being connected, (i.e. the first diaphragm 106 is upper on the first diaphragm 106 Edge is annular), the first drainage tube 1081 is set on playpipe 102 and is spaced apart with playpipe 102, the first drainage tube 1081 The ratio of diameter (unit can be millimeter) of upper end of height (unit can be millimeter) and the first cavity 1061 be more than etc. In 0.1 and less than or equal to 0.3.
The lower edge of second drainage tube 1082 with along being connected, (i.e. the second diaphragm 107 is upper on the second diaphragm 107 Edge is annular), the second drainage tube 1082 is set on ladder circulation pipe 105 and is spaced apart with ladder circulation pipe 105, and second draws The height (unit can be millimeter) of flow tube 1082 and the ratio of the diameter (unit can be millimeter) of the upper end of the second cavity 1071 Value is more than or equal to 0.1 and less than or equal to 0.3.
As depicted in figs. 1 and 2, specifically, the upper edge of the first diaphragm 106 and the first drainage tube 1081 can be with injections The bottom of pipe 102 is relative, and the lower edge of the first diaphragm 106 is located at the lower section of the outlet of playpipe 102, i.e. the first diaphragm 106 lower edge is located at the lower section of the lower surface of playpipe 102.It is possible thereby to orderly circulation preferably be formed, so as to enter One step is strengthened to the reactant in reaction chamber 1011 to be mixed.
The upper edge of second diaphragm 107 and the second drainage tube 1082 can be with corresponding ladder circulation pipe 105 bottom Relatively, the lower edge of the second diaphragm 107 is located under the lower section of the outlet of ladder circulation pipe 105, i.e. the second diaphragm 107 Along the lower section for the lower surface for being located at ladder circulation pipe 105.It is possible thereby to orderly circulation preferably be formed, so as to further Mixing is strengthened to the reactant in reaction chamber 1011.
Body 101 can be manufactured using transparent material (such as lucite), so be conducive to more clearly from seeing clearly The situation of the inside of reaction chamber 1011 during the course of the reaction.The circulating injection reactor of ladder can be run under chill form 10, i.e., with material of the running water as reaction, observe in specific circular response, the flowing shape of the material in reaction chamber 1011 Gesture.Shot by high-speed camera, the image of high-speed camera shooting is then observed by playing back at a slow speed, can be clear Ground is seen in reaction chamber 1011, and volume is respectively formed in the exit in the exit of playpipe 102 and each ladder circulation pipe 105 Seat, and between the first diaphragm 106 and the second diaphragm 107 and between two neighboring second diaphragm 107 Region be respectively formed orderly circulation.It is pre- that such case can be well demonstrated that the circulating injection reactor 10 of ladder can reach Phase effect, meets the requirement of reinforcing reaction.
As shown in Fig. 2 in one embodiment of the invention, the height of body 101 is 600mm, body 101 it is a diameter of 400mm, the diameter d0 of playpipe 102 is 10mm, and the diameter d1 of first order ladder circulation pipe 105 is 15mm, and first order ladder is followed The length h1 of endless tube 105 (the horn-like upper end including ladder circulation pipe 105, not as follows) is 200mm, and second level ladder is followed The diameter d2 of endless tube 105 is 22.5mm, and the length of second level ladder circulation pipe 105 is 90mm, third level ladder circulation pipe 105 A diameter of 34mm, the length of third level ladder circulation pipe 105 is 40mm.React the esterification for acetic acid and n-butanol, acetic acid Mol ratio with n-butanol is 2.5:1, reaction temperature is 80 DEG C, and reaction system uses heat-conducting oil heating temperature control, designs injection stream Measure as 0.6m3/ h, after reacting two hours, with 0.2m3/ h speed extraction product, while supplementing fresh material, opens auxiliary heating Device, with the temperature of maintenance reaction thing.The conversion ratio of the process n-butanol can reach 91% or so, selectively can reach 100%.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description Point can in an appropriate manner be combined in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that:Not In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this The scope of invention is limited by claim and its equivalent.

Claims (8)

1. a kind of circulating injection reactor of ladder, it is characterised in that including:
Body, has reaction chamber in the body, the wall of the reaction chamber provided with charging aperture, discharging opening, circulation discharging opening and Recycle feed mouthful;
Playpipe, the playpipe is extend into the reaction chamber by the recycle feed mouthful;
Outer circulating tube, the first end of the outer circulating tube with it is described circulation discharging opening connect, the second end of the outer circulating tube and The inlet communication of the playpipe;
Circulating pump, the circulating pump is located on the outer circulating tube;With
Ladder circulation pipe, the ladder circulation pipe is located in the reaction chamber, and the port of export of the playpipe passes through the ladder The import of circulation pipe is extend into the ladder circulation pipe;
The discharging opening is located at the top of the charging aperture, and the circulation discharging opening is located on the bottom wall of the reaction chamber, described Recycle feed mouthful is located on the roof of the reaction chamber, and the playpipe and the ladder circulation pipe are vertically set, wherein institute The longitudinal section for stating ladder circulation pipe is rectangle;
The ladder circulation pipe is multiple, the port of export the entering by the ladder circulation pipe positioned at the top of the playpipe Mouth is extend into the ladder circulation pipe of the top, above one in the two neighboring ladder circulation pipe The port of export extend into by the import of underlying one in the two neighboring ladder circulation pipe it is two neighboring described In underlying one in ladder circulation pipe;
Above one in multiple ladder circulation pipes in the two neighboring ladder circulation pipe is upper level ladder Underlying one in circulation pipe, the two neighboring ladder circulation pipe is next stage ladder circulation pipe.
2. the circulating injection reactor of ladder according to claim 1, it is characterised in that multiple ladder circulation pipes by It is upper be downwards first order ladder circulation pipe, second level ladder circulation pipe ... and N grade ladder circulation pipes, N is more than or equal to 2 Integer, wherein above one in the two neighboring ladder circulation pipe is upper level ladder circulation pipe, adjacent two Underlying one in the individual ladder circulation pipe be next stage ladder circulation pipe, and the upper level ladder circulation pipe is stretched The length and the ratio of the diameter of the next stage ladder circulation pipe entered to the part in the next stage ladder circulation pipe is more than Equal to 0.1 and less than or equal to 0.3.
3. the circulating injection reactor of ladder according to claim 2, it is characterised in that each ladder circulation pipe Diameter is more than or equal to 5 millimeters and less than or equal to 200 millimeters, a diameter of d0 of the playpipe, the first order ladder circulation pipe A diameter of d1, a diameter of d2 ... ... of the second level ladder circulation pipe, a diameter of dn of the N grades of ladder circulation pipes, The diameter of the diameter of wherein described playpipe and multiple ladder circulation pipes meets relationship below:
<mrow> <msub> <mi>d</mi> <mn>0</mn> </msub> <mo>&amp;le;</mo> <mfrac> <msqrt> <mn>2</mn> </msqrt> <mn>2</mn> </mfrac> <msub> <mi>d</mi> <mn>1</mn> </msub> <mn>...............................</mn> <mfrac> <msqrt> <mn>2</mn> </msqrt> <mn>2</mn> </mfrac> <msub> <mi>d</mi> <mrow> <mi>n</mi> <mo>-</mo> <mn>1</mn> </mrow> </msub> <mo>&amp;le;</mo> <mfrac> <msqrt> <mn>2</mn> </msqrt> <mn>2</mn> </mfrac> <msub> <mi>d</mi> <mi>n</mi> </msub> <mo>.</mo> </mrow>
4. the circulating injection reactor of ladder according to claim 2, it is characterised in that the first order ladder circulation pipe Length be h1, the length of the second level ladder circulation pipe is h2 ... ..., and the length of the N grade ladder circulation pipes is hn, Wherein described h1 is more than or equal to 100 millimeters and less than or equal to 1000 millimeters, and the length of multiple ladder circulation pipes meets following Relational expression:
<mrow> <msub> <mi>h</mi> <mn>1</mn> </msub> <msubsup> <mi>d</mi> <mn>1</mn> <mn>2</mn> </msubsup> <mo>=</mo> <msub> <mi>h</mi> <mn>2</mn> </msub> <msubsup> <mi>d</mi> <mn>2</mn> <mn>2</mn> </msubsup> <mo>=</mo> <mo>...</mo> <mo>...</mo> <mo>=</mo> <msub> <mi>h</mi> <mi>n</mi> </msub> <msubsup> <mi>d</mi> <mi>n</mi> <mn>2</mn> </msubsup> <mo>.</mo> </mrow>
5. the circulating injection reactor of ladder according to claim 1, it is characterised in that further comprise:
First diaphragm, first diaphragm is round table-like, has top and bottom equal in first diaphragm The first unlimited cavity, first diaphragm is set on the playpipe, first diaphragm and the injection The wall of pipe and the reaction chamber is spaced apart;With
Second diaphragm, second diaphragm is round table-like, has top and bottom equal in second diaphragm The second unlimited cavity, second diaphragm is set on the ladder circulation pipe, second diaphragm with it is described The wall of ladder circulation pipe and the reaction chamber is spaced apart.
6. the circulating injection reactor of ladder according to claim 5, it is characterised in that the ladder circulation pipe is multiple And second diaphragm is multiple, multiple second diaphragms are set in multiple ladder circulations correspondingly Guan Shang.
7. the circulating injection reactor of ladder according to claim 5, it is characterised in that
The drift angle of first diaphragm be 60 degree -120 degree, first cavity be it is round table-like, first cavity it is upper The ratio of the diameter at end and the diameter of the playpipe is more than or equal to 1.05 and less than or equal to 1.2, first diaphragm Outer is more than or equal to 0.01 and less than or equal to 0.05 with the distance of the wall of the reaction chamber with the ratio of the diameter of the body, institute The distance for stating the outer of the first diaphragm and the wall of the reaction chamber is more than 0 millimeter and less than or equal to 30 millimeters;
The drift angle of second diaphragm be 60 degree -120 degree, second cavity be it is round table-like, second cavity it is upper The ratio of the diameter of the diameter at end and the ladder circulation pipe is more than or equal to 1.05 and less than or equal to 1.2, second water conservancy diversion every The outer of plate is more than or equal to 0.01 with the ratio of the diameter of the body with the distance of the wall of the reaction chamber and is less than or equal to 0.05, the distance of the outer of second diaphragm and the wall of the reaction chamber is more than 0 millimeter and less than or equal to 30 millimeters, its In be set in the upper of the upper edge of the second diaphragm on the upper level ladder circulation pipe and the next stage ladder circulation pipe The ratio of the distance on edge and the diameter of the next stage ladder circulation pipe is more than or equal to 1 and less than or equal to 5.
8. the circulating injection reactor of ladder according to claim 5, it is characterised in that further comprise:
First drainage tube, the lower edge of first drainage tube with first diaphragm along being connected, first drainage Pipe sleeve is located on the playpipe and is spaced apart with the playpipe, the height of first drainage tube and first cavity The ratio of the diameter of upper end is more than or equal to 0.1 and less than or equal to 0.3;With
Second drainage tube, the lower edge of second drainage tube with second diaphragm along being connected, second drainage Pipe sleeve is located on the ladder circulation pipe and is spaced apart with the ladder circulation pipe, the height of second drainage tube and described the The ratio of the diameter of the upper end of two cavitys is more than or equal to 0.1 and less than or equal to 0.3.
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