CN105642220A - Multi-stair circulating type jet reactor - Google Patents
Multi-stair circulating type jet reactor Download PDFInfo
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- CN105642220A CN105642220A CN201610004376.9A CN201610004376A CN105642220A CN 105642220 A CN105642220 A CN 105642220A CN 201610004376 A CN201610004376 A CN 201610004376A CN 105642220 A CN105642220 A CN 105642220A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 91
- 238000007599 discharging Methods 0.000 claims abstract description 21
- 230000004087 circulation Effects 0.000 claims description 185
- 238000002347 injection Methods 0.000 claims description 45
- 239000007924 injection Substances 0.000 claims description 45
- 230000008676 import Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000376 reactant Substances 0.000 description 24
- 239000007788 liquid Substances 0.000 description 17
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- 239000012530 fluid Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
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- 238000010438 heat treatment Methods 0.000 description 2
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- 238000005381 potential energy Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920005479 Lucite® Polymers 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/26—Nozzle-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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Abstract
The invention discloses a multi-stair circulating type jet reactor which comprises a body, a jet pipe, an external circulating pipe, a circulating pump and a stair circulating pipe, wherein a reaction chamber is arranged in the body; a feeding port, a discharging port, a circulating discharging port and a circulating feeding port are arranged on a wall of the reaction chamber; the jet pipe is inserted into the reaction chamber through the circulating feeding port; a first end of the external circulating pipe is communicated with the circulating discharging port; a second end of the external circulating pipe is communicated with an inlet of the jet pipe; the circulating pump is arranged on the external circulating pipe; the stair circulating pipe is arranged in the reaction chamber; an outlet end of the jet pipe is inserted into the stair circulating pipe through the inlet of the stair circulating pipe. The multi-stair circulating type jet reactor according to the embodiment of the invention has the advantages of excellent mixing performance, low energy consumption, and the like.
Description
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 sprays so that can mutually cut into molecule between reactant and be sufficiently mixed by fluid high-speed, increase the contact area between each phase of reactant, heat and mass transport can be strengthened, accelerate reaction rate, improve concentration and Temperature Distribution, it is suppressed that side reaction, improving the selectivity of reaction, therefore injection reactor is particularly suitable for the heterogeneous reaction process such as gas-liquid, liquid liquid. Along with economic development and commercial production scale expansion and reduce energy consumption requirement, injection reactor also increasingly require tend to maximize, the variation of internal structure.
But in amplification process, injection reactor is subject to the restriction of two key factors, one is the effective interaction depth of jet, two be jet effectively mix radius. If it is to say, when the height of reactor and radius size are too big, it will cause the decline of ejector mixed performance, finally affect reaction effect. As in order to realize remaining to the high turbulence of maintenance fluid and excellent mixed performance after reactor volume is greatly improved, then must significantly strengthen the power of motor of jet circulating system, and this be nonlinear often. It is to say, when reactor reaches a constant volume, supporting circulating pump motor power consumption becomes non-linear relation with reactor volume--this is to be determined by the structure of ejector. Therefore, existing injection reactor or mixed performance are good, but energy consumption is high, or energy consumption is relatively low, but mixed performance is bad.
Traditional injection reactor is merely able to form injection stream, and still have considerable kinetic energy and potential energy there is no directed use at the end of injection stream, the reactant disturbance causing the lower end of the reaction chamber of reactor is very uneven, this can make much kinetic energy and potential energy be heat energy, so that the capacity usage ratio of reaction reduces, and reaction uncontrollability is increased.
Summary of the invention
It is contemplated that at least solve one of technical problem of existence in prior art. For this, it is an object of the present invention to propose a kind of circulating injection reactor of ladder with the advantage that mixed performance is excellent, energy consumption is low.
The circulating injection reactor of ladder according to embodiments of the present invention includes: body, and described internal has reaction chamber, and the wall of described reaction chamber is provided with charging aperture, discharging opening, circulation discharging opening and recycle feed mouth;Playpipe, described playpipe extend in described reaction chamber by described recycle feed mouth; Outer circulating tube, the first end of described outer circulating tube connects with described circulation discharging opening, the second end of described outer circulating tube and the inlet communication of described playpipe; Circulating pump, described circulating pump is located on described outer circulating tube; With ladder circulation pipe, described ladder circulation pipe is located in described reaction chamber, and the port of export of described playpipe is extend in described ladder circulation pipe by the import of described 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.
It addition, the circulating injection reactor of ladder according to embodiments of the present invention can also have following additional technical characteristic:
According to one embodiment of present invention, described discharging opening is positioned at the top of described charging aperture, described circulation discharging opening is located on the diapire of described reaction chamber, described recycle feed mouth is located on the roof of described reaction chamber, described playpipe and described ladder circulation pipe are arranged vertically, and the longitudinal section of wherein said ladder circulation pipe is rectangle.
According to one embodiment of present invention, described ladder circulation pipe is multiple, the import of the port of export of the described playpipe described ladder circulation pipe by being positioned at the top extend into the described ladder circulation pipe being positioned at the top, and the port of export of above one in adjacent two described ladder circulation pipes extend in be positioned below in adjacent two described ladder circulation pipes by the import of be positioned below in adjacent two described ladder circulation pipes.
According to one embodiment of present invention, multiple described ladder circulation pipes are first order ladder circulation pipe from top to bottom, second level ladder circulation pipe, ... with N level ladder circulation pipe, N is the integer be more than or equal to 2, wherein above one in adjacent two described ladder circulation pipes is upper level ladder circulation pipe, in adjacent two described ladder circulation pipes be positioned below one is next stage ladder circulation pipe, the ratio of the length of the part extending in described next stage ladder circulation pipe of described upper level ladder circulation pipe and the diameter of described next stage ladder circulation pipe is 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 described ladder circulation pipe is be more than or equal to 5 millimeters and less than or equal to 200 millimeters, the diameter of described playpipe is d0, the diameter of described first order ladder circulation pipe is d1, the diameter of described second level ladder circulation pipe is d2, ..., the diameter of described N level ladder circulation pipe is dn, and the diameter of wherein said playpipe and the diameter of multiple described ladder circulation pipe meet relationship below:
According to one embodiment of present invention, the length of described first order ladder circulation pipe is h1, the length of described second level ladder circulation pipe is h2, ..., the length of described N level ladder circulation pipe is hn, wherein said h1 is be more than or equal to 100 millimeters and less than or equal to 1000 millimeters, and the length of multiple described ladder circulation pipes meets relationship below:
According to one embodiment of present invention, the circulating injection reactor of described ladder farther includes: the first diaphragm, described first diaphragm is round table-like, there is in described first diaphragm the first cavity that top and bottom are all opened wide, described first diaphragm is set on described playpipe, and described first diaphragm is spaced apart with the wall of described playpipe and described reaction chamber;With the second diaphragm, described second diaphragm is round table-like, there is in described second diaphragm the second cavity that top and bottom are all opened wide, described second diaphragm is set on described ladder circulation pipe, and described second diaphragm is spaced apart with the wall of described ladder circulation pipe and described reaction chamber.
According to one embodiment of present invention, described ladder circulation pipe is multiple and described second diaphragm is multiple, and multiple described second diaphragms are set on multiple described ladder circulation pipe correspondingly.
According to one embodiment of present invention, the drift angle of described first diaphragm is 60 degree of-120 degree, described first cavity is round table-like, the ratio of the diameter of the upper end of described first cavity and the diameter of described playpipe is be more than or equal to 1.05 and less than or equal to 1.2, the ratio of the distance of the outer of described first diaphragm and the wall of described reaction chamber and the diameter of described body is be more than or equal to 0.01 and less than or equal to 0.05, and the distance of the outer of described first diaphragm and the wall of described reaction chamber is more than 0 millimeter and less than or equal to 30 millimeters, the drift angle of described second diaphragm is 60 degree of-120 degree, described second cavity is round table-like, the ratio of the diameter of the diameter of the upper end of described second cavity and described ladder circulation pipe is be more than or equal to 1.05 and less than or equal to 1.2, the ratio of the distance of the outer of described second diaphragm and the wall of described reaction chamber and the diameter of described body is be more than or equal to 0.01 and less than or equal to 0.05, the distance of the outer of described second diaphragm and the wall of described reaction chamber is more than 0 millimeter and less than or equal to 30 millimeters, the ratio of the upper edge of the second diaphragm being wherein set on described upper level ladder circulation pipe and the distance on the upper edge of described next stage ladder circulation pipe and the diameter of described next stage ladder circulation pipe is be 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 described ladder farther includes: the first drainage tube, the lower edge of described first drainage tube is connected with the upper edge of described first diaphragm, described first draining-tube cover is located on described playpipe and spaced apart with described playpipe, and the ratio of the diameter of the upper end of the height of described first drainage tube and described first cavity is be more than or equal to 0.1 and less than or equal to 0.3; With the second drainage tube, the lower edge of described second drainage tube is connected with the upper edge of described second diaphragm, described second draining-tube cover is located on described ladder circulation pipe and spaced apart with described ladder circulation pipe, and the ratio of the diameter of the upper end of the height of described second drainage tube and described second cavity is be more than or equal to 0.1 and less than or equal to 0.3.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, 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 structurtes schematic diagram of the circulating injection reactor of ladder according to embodiments of the present invention.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish. The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " 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 the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention. additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic. thus, define " first ", the feature of " second " can express or implicitly include one or more these features. in describing the invention, except as otherwise noted, " multiple " are meant that two or more.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly;Can be mechanically connected, it is also possible to be electrical connection; Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals. For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
Below with reference to Fig. 1 and Fig. 2, the circulating injection reactor 10 of ladder according to embodiments of the present invention is described. As depicted in figs. 1 and 2, the circulating injection reactor 10 of ladder according to embodiments of the present invention includes body 101, playpipe 102, outer circulating tube 103, circulating pump 104 and ladder circulation pipe 105.
Having reaction chamber 1011 in body 101, the wall of reaction chamber 1011 is provided with charging aperture 1012, discharging opening 1013, circulation discharging opening 1014 and recycle feed mouth 1012, and playpipe 102 is extend in reaction chamber 1011 by recycle feed mouth 1012. First end of outer circulating tube 103 connects with circulation discharging opening 1014, and the second end of outer circulating tube 103 and the inlet communication of playpipe 102, circulating 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 is extend in ladder circulation pipe 105 by the import of ladder circulation pipe 105.
The work process of the circulating injection reactor 10 of ladder according to embodiments of the present invention it is briefly described below with reference to Fig. 1 and Fig. 2. Material liquid joins in reaction chamber 1011 by charging aperture 1012, and ON cycle pump 104 is so that material liquid circulates. Wherein it is possible to adding ON cycle pump 104 while material liquid, it is also possible to be then turned on circulating pump 104 after adding material liquid. Material liquid can be entered in playpipe 102 by outer circulating tube 103, and sprays from the outlet of playpipe 102 to carry out injection reaction.
In injection course of reaction, the working fluid of certain pressure, when the outlet of playpipe 102 is sprayed, forms high-velocity fluid, formation Pressure Drop around the outlet of playpipe 102. Owing to the outlet of playpipe 102 is positioned at ladder circulation pipe 105, the reactant of surrounding therefore can being made to be inhaled in ladder circulation pipe 105 and mix in ladder circulation pipe 105, namely ladder circulation pipe 105 can play the effect of strengthening mixing. The reactant leaving ladder circulation pipe 105 enters in reaction chamber 1011, and in reaction chamber 1011 hybrid reaction again.
That is, the circulating injection reactor of ladder 10 according to embodiments of the present invention is to utilize playpipe 102 and ladder circulation pipe 105 to be sprayed with certain pressure by mixed reactant (such as liquid liquid, liquid-solid etc.), Pressure Drop is produced around the outlet of playpipe 102 and the outlet of ladder circulation pipe 105, reactant about is entrainmented and in entrance ladder circulation pipe 105, carries out strengthening mixing, and ladder circulation pipe 105 may also operate as the effect of water conservancy diversion.
In other words, the injected pipe 102 of reactant (material liquid) quickly sprays formation jet, this jet has powerful kinetic energy to be impacted downwards, the reactant of reaction chamber 1011 bottom then can be extruded to overflow, the quick outflow of liquid can form space, supplementing into thus having other partially liqs, thus form circulation cycle. By that analogy, ladder circulation pipe 105 also can form the partial circulating of self, namely will form the systemic circulation comprising multilamellar partial circulating in whole reaction chamber 1011. So not only make the reactant in whole reaction chamber 1011 be sufficiently mixed, react, and be conducive to being uniformly distributed of energy, do not result in the situation of hot-spot.
The circulating injection reactor 10 of ladder according to embodiments of the present invention is by arranging ladder circulation pipe 105 and making the outlet of playpipe 102 extend in ladder circulation pipe 105, such that it is able to utilize ladder circulation pipe 105 that the reactant in reaction chamber 1011 is strengthened mixing, ladder circulation pipe 105 is sufficiently used the energy of circulation liquid and achieves the strengthening reacted with mass transfer. Thus be possible not only to make the various reactants in reaction chamber 1011 rapidly, be sufficiently mixed to improve reaction efficiency, and energy consumption of reaction can be reduced. It is to say, the circulating injection reactor 10 of ladder according to embodiments of the present invention can utilize injection flow point energy fully, reduce power consumption.
Therefore, the circulating injection reactor of ladder 10 according to embodiments of the present invention has that mixed performance is excellent, low power consumption and other advantages.
As depicted in figs. 1 and 2, discharging opening 1013 is positioned at the top of charging aperture 1012. Thus the circulating injection reactor 10 of ladder is after being circulated reaction, it is possible to from discharging opening 1013 constantly discharging, in order to realize producing continuously. It is to say, the circulating injection reactor 10 of ladder namely can Batch Process, can produce continuously again. Advantageously, the diapire of the contiguous reaction chamber 1011 of charging aperture 1012, the roof of the contiguous reaction chamber 1011 of discharging opening 1013, the outlet of playpipe 102 is positioned at the lower section of the liquid level of reaction chamber 1011. Wherein, shown in the arrow A in above-below direction such as Fig. 1.
In some embodiments of the invention, as depicted in figs. 1 and 2, circulation discharging opening 1014 is located on the diapire of reaction chamber 1011, recycle feed mouth 1012 is located on the roof of reaction chamber 1011, playpipe 102 and ladder circulation pipe 105 are arranged vertically, and wherein the longitudinal section of 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 time when to transferring raw material liquid in reaction chamber 1011, it is possible to open this atmospheric valve to be conducive to the addition of material liquid. The bottom of reaction chamber 1011 can be provided with silk screen, and when there being bulky grain solid to exist, this silk screen can stop bulky grain solid to enter circulating pump 104, thus avoiding circulating pump 104 is caused damage.
Outer circulating tube 103 can be provided with heat exchanger, in order to controlled the reaction temperature of reactant by liquid temperature control device. Circulating pump 104 provides power for reactant, allows reactant (working fluid) repeatedly circulate, to reaction thoroughly.
As depicted in figs. 1 and 2, in some embodiments of the invention, ladder circulation pipe 105 can be multiple. Ladder circulation pipe 105 can be designed as different progression (i.e. number) according to real reaction situation. Advantageously, ladder circulation pipe 105 can be 1-5.
The import (upper end) of the port of export (lower end) of the playpipe 102 ladder circulation pipe 105 by being positioned at the top extend into the ladder circulation pipe 105 being positioned at the top. The port of export (lower end) of above one in adjacent two ladder circulation pipes 105 extend in be positioned below in adjacent two ladder circulation pipes 105 by the import (upper end) of be positioned below in adjacent two ladder circulation pipes 105. Wherein, above one in adjacent two ladder circulation pipes 105 is upper level ladder circulation pipe 105, and be positioned below in adjacent two ladder circulation pipes 105 is next stage ladder circulation pipe 105.
Each ladder circulation pipe 105 can form the partial circulating of self.Specifically, the working fluid of certain pressure, when the outlet of upper level ladder circulation pipe 105 is sprayed, forms high-velocity fluid, formation Pressure Drop around the outlet of upper level ladder circulation pipe 105. Owing to the outlet of upper level ladder circulation pipe 105 is positioned at next stage ladder circulation pipe 105, therefore the reactant of surrounding can being made to be inhaled in next stage ladder circulation pipe 105 and mix in next stage ladder circulation pipe 105, namely next stage ladder circulation pipe 105 can play the effect of strengthening mixing. The reactant of the ladder circulation pipe 105 leaving bottom enters in reaction chamber 1011, and in reaction chamber 1011 hybrid reaction again.
By arranging multiple ladder circulation pipe 105, such that it is able to further the reactant in reaction chamber 1011 is strengthened mixing. Thus be possible not only to make the various reactants in reaction chamber 1011 more rapidly, mixing more fully is to improve reaction efficiency further, and can reduce energy consumption of reaction further.
Advantageously, the length of the part extending in next stage ladder circulation pipe 105 of upper level ladder circulation pipe 105 and the ratio of the diameter of next stage ladder circulation pipe 105 are be more than or equal to 0.1 and less than or equal to 0.3. It is to say, the length of the part extending in next stage ladder circulation pipe 105 of upper level ladder circulation pipe 105 is 0.1-0.3 times of the diameter of next stage ladder circulation pipe 105.
Multiple ladder circulation pipes 105 are first order ladder circulation pipe 105, second level ladder circulation pipe 105 ... from top to bottom is the integer be more than or equal to 2 with N level ladder circulation pipe 105, N. The diameter of each ladder circulation pipe 105 is be more than or equal to 5 millimeters and less than or equal to 200 millimeters, the diameter of playpipe 102 is d0, the diameter of first order ladder circulation pipe 105 is d1, the diameter of second level ladder circulation pipe 105 is d2, ..., the diameter of N level ladder circulation pipe 105 is dn, and wherein the diameter of playpipe 102 and the diameter of multiple ladder circulation pipe 105 meet relationship below:
The length of first order ladder circulation pipe 105 is h1, the length of second level ladder circulation pipe 105 is h2 ..., the length of N level ladder circulation pipe 105 is hn, wherein h1 is be more than or equal to 100 millimeters and less than or equal to 1000 millimeters, and the length of multiple ladder circulation pipes 105 meets relationship below:
As depicted in figs. 1 and 2, the upper end of each ladder circulation pipe 105 can be configured to horn-like, thus can water conservancy diversion reactant better. It is to say, the upper end of each ladder circulation pipe 105 can be rounding mesa-shaped, the angle of the axis (i.e. the axis of ladder circulation pipe 105) of the bus of this inverted round stage and this inverted round stage is 30 degree of-60 degree. Wherein, the longitudinal section of the remainder except upper end of each ladder circulation pipe 105 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 farther includes the first diaphragm 106 and the second diaphragm 107. First diaphragm 106 is round table-like, has the first cavity 1061 that top and bottom are all opened wide in the first diaphragm 106, and the first diaphragm 106 is set on playpipe 102, and the first diaphragm 106 is spaced apart with the wall of playpipe 102 and reaction chamber 1011. Second diaphragm 107 is round table-like, there is in second diaphragm 107 the second cavity 1071 that top and bottom are all opened wide, second diaphragm 107 is set on ladder circulation pipe 105, and the second diaphragm 107 is spaced apart with the wall of ladder circulation pipe 105 and reaction chamber 1011.The reactant in reaction chamber 1011 thus can be made more quickly and uniformly to mix.
In a concrete example of the present invention, the drift angle of the first diaphragm 106 is 60 degree of-120 degree, and namely the angle of the axis of bus and first diaphragm 106 of the first diaphragm 106 is 30 degree-60 and spends. First cavity 1061 is round table-like, and the ratio of the diameter (unit can be millimeter) of the upper end of the first cavity 1061 and the diameter (unit can be millimeter) of playpipe 102 is be more than or equal to 1.05 and less than or equal to 1.2. The ratio of the distance (unit can be millimeter) of the outer of the first diaphragm 106 and the wall of reaction chamber 1011 and the diameter (unit can be millimeter) of body 101 is be more than or equal to 0.01 and less than or equal to 0.05, and the distance of the outer of the first 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 the second diaphragm 107 is 60 degree of-120 degree, and namely the angle of the axis of bus and second diaphragm 107 of the second diaphragm 107 is 30 degree-60 and spends. Second cavity 1071 is round table-like, and the ratio of the diameter (unit can be millimeter) of the upper end of the second cavity 1071 and the diameter (unit can be millimeter) of ladder circulation pipe 105 is be more than or equal to 1.05 and less than or equal to 1.2. The ratio of the distance (unit can be millimeter) of the outer of the second diaphragm 107 and the wall of reaction chamber 1011 and the diameter (unit can be millimeter) of body 101 is be more than or equal to 0.01 and less than or equal to 0.05, and the distance of the outer of the second diaphragm 107 and the wall of reaction chamber 1011 is more than 0 millimeter and less than or equal to 30 millimeters.
Wherein, the diameter of the upper end of the first cavity 1061 is the diameter of the perforate of the upper end of the first diaphragm 106, and the diameter of the upper end of the second cavity 1071 is the diameter of the perforate of the upper end of the second diaphragm 107.
The ratio of the distance H1 (as in figure 2 it is shown, unit can be millimeter) on the upper edge of the second diaphragm 107 being set on upper level ladder circulation pipe 105 and the upper edge of next stage ladder circulation pipe 105 and the diameter (unit can be millimeter) of next stage ladder circulation pipe 105 is 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 diaphragms 107 are set on multiple ladder circulation pipe 105 correspondingly. It is to say, the quantity of the second diaphragm 107 is equal to the quantity of ladder circulation pipe 105, and second diaphragm 107 is set on a ladder circulation pipe 105. Reaction chamber 1011 is divided into several conversion zone interconnected by the first diaphragm 106 and multiple second diaphragm 107 from bottom to top.
In an example of the present invention, as depicted in figs. 1 and 2, the circulating injection reactor 10 of ladder farther includes the first drainage tube 1081 and the second drainage tube 1082.
The lower edge of the first drainage tube 1081 is connected (namely the upper edge of the first diaphragm 106 is annular) with the upper edge of the first diaphragm 106, first drainage tube 1081 is set on playpipe 102 and spaced apart with playpipe 102, and the ratio of the diameter (unit can be millimeter) of the height (unit can be millimeter) of the first drainage tube 1081 and the upper end of the first cavity 1061 is be more than or equal to 0.1 and less than or equal to 0.3.
The lower edge of the second drainage tube 1082 is connected (namely the upper edge of the second diaphragm 107 is annular) with the upper edge of the second diaphragm 107, second drainage tube 1082 is set on ladder circulation pipe 105 and spaced apart with ladder circulation pipe 105, and the ratio of the diameter (unit can be millimeter) of the height (unit can be millimeter) of the second drainage tube 1082 and the upper end of the second cavity 1071 is be 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 can be relative with the bottom of playpipe 102 with the first drainage tube 1081, the lower edge of the first diaphragm 106 is positioned at the lower section of the outlet of playpipe 102, and namely the lower edge of the first diaphragm 106 is positioned at the lower section of the lower surface of playpipe 102. Thus can form orderly circulation better, such that it is able to further the reactant in reaction chamber 1011 is strengthened mixing.
The upper edge of the second diaphragm 107 can be relative with the bottom of corresponding ladder circulation pipe 105 with the second drainage tube 1082, the lower edge of the second diaphragm 107 is positioned at the lower section of the outlet of ladder circulation pipe 105, and namely the lower edge of the second diaphragm 107 is positioned at the lower section of the lower surface of ladder circulation pipe 105. Thus can form orderly circulation better, such that it is able to further the reactant in reaction chamber 1011 is strengthened mixing.
Transparent material (such as lucite) can be utilized to manufacture body 101, be so conducive to more clearly from seeing clearly the situation of the inside of reaction chamber 1011 in course of reaction. The circulating injection reactor 10 of ladder can be run under chill form, namely with tap water as the material reacted, observe when concrete circular response, the flowing situation of the material in reaction chamber 1011. Shoot by high-speed camera, then pass through playback at a slow speed and observe the image of high-speed camera shooting, it can be clearly seen that in reaction chamber 1011, it is respectively formed volume seat in the exit in the exit of playpipe 102 and each ladder circulation pipe 105, and the region between the first diaphragm 106 with the second diaphragm 107 and between adjacent two the second diaphragms 107 is respectively formed orderly circulation. This situation can be well demonstrated that the circulating injection reactor 10 of ladder can produce a desired effect, and meets the requirement of strengthening reaction.
As shown in Figure 2, in one embodiment of the invention, the height of body 101 is 600mm, the diameter of body 101 is 400mm, the diameter d0 of playpipe 102 is 10mm, the diameter d1 of first order ladder circulation pipe 105 is 15mm, first order ladder circulation pipe 105 (does not include the trumpet-shaped upper end of ladder circulation pipe 105, as follows) length h1 be 200mm, the diameter d2 of second level ladder circulation pipe 105 is 22.5mm, the length of second level ladder circulation pipe 105 is 90mm, the diameter of third level ladder circulation pipe 105 is 34mm, the length of third level ladder circulation pipe 105 is 40mm. reaction is 2.5:1 for the mol ratio of the esterification of acetic acid with n-butyl alcohol, acetic acid and n-butyl alcohol, and reaction temperature is 80 DEG C, and reaction system adopts heat-conducting oil heating temperature control, and design injection flow is 0.6m3/ h, after reacting two hours, with 0.2m3The speed extraction product of/h, supplements fresh material simultaneously, opens assisted heating device, to maintain the temperature of reactant. The conversion ratio of this process n-butyl alcohol can reach about 91%, and selectivity can reach 100%.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention. In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in an appropriate manner 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: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principles of the invention and objective, the scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. the circulating injection reactor of ladder, it is characterised in that including:
Body, described internal has reaction chamber, and the wall of described reaction chamber is provided with charging aperture, discharging opening, circulation discharging opening and recycle feed mouth;
Playpipe, described playpipe extend in described reaction chamber by described recycle feed mouth;
Outer circulating tube, the first end of described outer circulating tube connects with described circulation discharging opening, the second end of described outer circulating tube and the inlet communication of described playpipe;
Circulating pump, described circulating pump is located on described outer circulating tube; With
Ladder circulation pipe, described ladder circulation pipe is located in described reaction chamber, and the port of export of described playpipe is extend in described ladder circulation pipe by the import of described ladder circulation pipe.
2. the circulating injection reactor of ladder according to claim 1, it is characterized in that, described discharging opening is positioned at the top of described charging aperture, described circulation discharging opening is located on the diapire of described reaction chamber, described recycle feed mouth is located on the roof of described reaction chamber, described playpipe and described ladder circulation pipe are arranged vertically, and the longitudinal section of wherein said ladder circulation pipe is rectangle.
3. the circulating injection reactor of ladder according to claim 2, it is characterized in that, described ladder circulation pipe is multiple, the import of the port of export of the described playpipe described ladder circulation pipe by being positioned at the top extend into the described ladder circulation pipe being positioned at the top, and the port of export of above one in adjacent two described ladder circulation pipes extend in be positioned below in adjacent two described ladder circulation pipes by the import of be positioned below in adjacent two described ladder circulation pipes.
4. the circulating injection reactor of ladder according to claim 3, it is characterized in that, multiple described ladder circulation pipes are first order ladder circulation pipe from top to bottom, second level ladder circulation pipe, ... with N level ladder circulation pipe, N is the integer be more than or equal to 2, wherein above one in adjacent two described ladder circulation pipes is upper level ladder circulation pipe, in adjacent two described ladder circulation pipes be positioned below one is next stage ladder circulation pipe, the ratio of the length of the part extending in described next stage ladder circulation pipe of described upper level ladder circulation pipe and the diameter of described next stage ladder circulation pipe is be more than or equal to 0.1 and less than or equal to 0.3.
5. the circulating injection reactor of ladder according to claim 4, it is characterized in that, the diameter of each described ladder circulation pipe is be more than or equal to 5 millimeters and less than or equal to 200 millimeters, the diameter of described playpipe is d0, the diameter of described first order ladder circulation pipe is d1, and the diameter of described second level ladder circulation pipe is d2 ..., the diameter of described N level ladder circulation pipe is dn, and the diameter of wherein said playpipe and the diameter of multiple described ladder circulation pipe meet relationship below:
6. the circulating injection reactor of ladder according to claim 4, it is characterized in that, the length of described first order ladder circulation pipe is h1, the length of described second level ladder circulation pipe is h2, ..., the length of described N level ladder circulation pipe is hn, and wherein said h1 is be more than or equal to 100 millimeters and less than or equal to 1000 millimeters, and the length of multiple described ladder circulation pipes meets relationship below:
7. the circulating injection reactor of ladder according to claim 1, it is characterised in that farther include:
First diaphragm, described first diaphragm is round table-like, having the first cavity that top and bottom are all opened wide in described first diaphragm, described first diaphragm is set on described playpipe, and described first diaphragm is spaced apart with the wall of described playpipe and described reaction chamber;With
Second diaphragm, described second diaphragm is round table-like, there is in described second diaphragm the second cavity that top and bottom are all opened wide, described second diaphragm is set on described ladder circulation pipe, and described second diaphragm is spaced apart with the wall of described ladder circulation pipe and described reaction chamber.
8. the circulating injection reactor of ladder according to claim 7, it is characterised in that described ladder circulation pipe is multiple and described second diaphragm is multiple, and multiple described second diaphragms are set on multiple described ladder circulation pipe correspondingly.
9. the circulating injection reactor of ladder according to claim 7, it is characterised in that
The drift angle of described first diaphragm is 60 degree of-120 degree, described first cavity is round table-like, the ratio of the diameter of the upper end of described first cavity and the diameter of described playpipe is be more than or equal to 1.05 and less than or equal to 1.2, the ratio of the distance of the outer of described first diaphragm and the wall of described reaction chamber and the diameter of described body is be more than or equal to 0.01 and less than or equal to 0.05, and the distance of the outer of described first diaphragm and the wall of described reaction chamber is more than 0 millimeter and less than or equal to 30 millimeters;
The drift angle of described second diaphragm is 60 degree of-120 degree, described second cavity is round table-like, the ratio of the diameter of the diameter of the upper end of described second cavity and described ladder circulation pipe is be more than or equal to 1.05 and less than or equal to 1.2, the ratio of the distance of the outer of described second diaphragm and the wall of described reaction chamber and the diameter of described body is be more than or equal to 0.01 and less than or equal to 0.05, the distance of the outer of described second diaphragm and the wall of described reaction chamber is more than 0 millimeter and less than or equal to 30 millimeters, the ratio of the upper edge of the second diaphragm being wherein set on described upper level ladder circulation pipe and the distance on the upper edge of described next stage ladder circulation pipe and the diameter of described next stage ladder circulation pipe is be more than or equal to 1 and less than or equal to 5.
10. the circulating injection reactor of ladder according to claim 7, it is characterised in that farther include:
First drainage tube, the lower edge of described first drainage tube is connected with the upper edge of described first diaphragm, described first draining-tube cover is located on described playpipe and spaced apart with described playpipe, and the ratio of the diameter of the upper end of the height of described first drainage tube and described first cavity is be more than or equal to 0.1 and less than or equal to 0.3; With
Second drainage tube, the lower edge of described second drainage tube is connected with the upper edge of described second diaphragm, described second draining-tube cover is located on described ladder circulation pipe and spaced apart with described ladder circulation pipe, and the ratio of the diameter of the upper end of the height of described second drainage tube and described second cavity is be more than or equal to 0.1 and less than or equal to 0.3.
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| CN201610004376.9A CN105642220B (en) | 2016-01-06 | 2016-01-06 | The circulating injection reactor of multi-ladder |
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Cited By (1)
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| CN106431861A (en) * | 2016-08-23 | 2017-02-22 | 南京大学 | Method and device for styrene co-producing benzaldehyde, oxidated phenylethylene and styrene cyclic carbonate through oxidation |
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| CN105642220B (en) | 2017-10-10 |
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