CN212247497U - Quick solvent replacement device - Google Patents
Quick solvent replacement device Download PDFInfo
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- CN212247497U CN212247497U CN201922442811.8U CN201922442811U CN212247497U CN 212247497 U CN212247497 U CN 212247497U CN 201922442811 U CN201922442811 U CN 201922442811U CN 212247497 U CN212247497 U CN 212247497U
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Abstract
The utility model provides a rapid solvent replacement device, which comprises a solvent pool, a conveying mechanism and an ultrasonic vibration generator; the solvent tank is filled with a replacement solvent; the conveying mechanism is used for conveying the wet gel felt to pass through the replacement solvent in the solvent pool; the ultrasonic waves generated by the ultrasonic vibration generator act on the displaced solvent molecules and the water molecules in the wet gel felt to accelerate the solvent displacement speed. The utility model discloses simple structure, the produced ultrasonic wave of ultrasonic vibration generator directly is used in the replacement solvent molecule to and on using the hydrone in the wet gel felt through the replacement solvent, improved the flourishing degree of two kinds of molecules greatly, the replacement speed promotes greatly from this.
Description
Technical Field
The utility model relates to a preparation method of aerogel felt, it relates to a quick solvent replacement device in aerogel felt preparation process.
Background
The aerogel is a nano porous material with the porosity of 80-99.8%, the specific surface area of the aerogel can reach 200-1000 m2/g, the density of the aerogel is extremely low, the aerogel is the lightest solid in the world at present, and in addition, the aerogel also has the advantages of low thermal conductivity, high porosity, high light transmittance, low dielectric constant, low refractive index and the like.
The aerogel blanket is obtained by impregnating the fiber blanket with an aerogel liquid. In the preparation process, the fiber felt impregnated with the gel is aged at room temperature or under heating condition, and then needs to be placed in solvents such as absolute ethyl alcohol and the like for solvent replacement for many times, so as to remove redundant water in the fiber felt-gel composite (or called wet gel felt).
The existing solvent replacement process needs a plurality of cycles, and has the disadvantages of complicated process, long time and low replacement efficiency, thereby causing high production cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick solvent replacement device to the process that exists is loaded down with trivial details among the solution prior art, and is long, replaces the technical problem of inefficiency.
In order to solve the technical problem, the utility model provides a pair of quick solvent replacement device, include: the device comprises a solvent pool, a conveying mechanism and an ultrasonic vibration generator;
the solvent tank is filled with a replacement solvent;
the conveying mechanism is used for conveying the wet gel felt to pass through the replacement solvent in the solvent pool;
the ultrasonic waves generated by the ultrasonic vibration generator act on the displaced solvent molecules and the water molecules in the wet gel felt to accelerate the solvent displacement speed.
The utility model discloses simple structure, the produced ultrasonic wave of ultrasonic vibration generator directly is used in the replacement solvent molecule to and on using the hydrone in the wet gel felt through the replacement solvent, improved the flourishing degree of two kinds of molecules greatly, the replacement speed promotes greatly from this.
In addition, the length of the solvent pool can be prolonged according to the requirement of solvent replacement, the wet gel felt is input into the replacement solvent from one end of the solvent pool, the solvent treatment is continuously carried out in the process that the wet gel felt walks in the replacement solvent, and when the wet gel felt is output from the other end of the solvent pool and is separated from the replacement solvent, the whole solvent replacement work can be completed at one time, so that the efficiency is greatly improved; compared with the existing solvent replacement technology, the solvent replacement time can be saved by 70-80%.
Further, the ultrasonic vibration generator includes an ultrasonic emitting head (also called a vibrator); the solvent pool is internally provided with a displacement area for solvent displacement, and the ultrasonic emitting heads are arranged at the bottom of the displacement area of the solvent pool.
Further, in the conveying direction of the wet gel mat, the ultrasonic intensity distributed in the solvent pool replacement area is gradually reduced.
Preferably, the ultrasonic intensity is arranged in the solvent pool displacement area in a linear gradually-decreasing manner (i.e. arranged in a monotonically-decreasing manner) in the conveying direction of the wet gel mat.
Preferably, the arrangement density of the ultrasonic wave emitting heads in the solvent pool replacement region is gradually reduced in the conveying direction of the wet gel mat.
Further, assuming that the distribution function of the emission heads in the displacement region is f (y); wherein the starting point of the wet gel felt entering the replacement area of the flux pool is the original point, and y is the horizontal distance value (namely the horizontal coordinate value) between a certain point in the flux pool and the original point; (y) is the distribution density of the emission heads at the y point (i.e. the distribution number of the emission heads per unit length); then f (y) is preferably a monotonically decreasing linear function, exponential function, or power function.
Compared with the uniform distribution mode of the emitting heads, the monotonous descending distribution mode can ensure that enough vibrators are used for displacement after the wet gel enters the displacement area, and the monotonous descending distribution mode needs less emitting heads and has higher displacement efficiency.
Further, in the conveying direction of the wet gel felt, the conveying path of the wet gel felt in the replacement area is a concave arc, the arrangement density of the emitting heads is the largest at the lowest point of the arc, and the arrangement density of the emitting heads is gradually reduced from the lowest point of the arc to two sides.
Further, the arc shapes are arranged in a bilateral symmetry mode; the distribution density of the emission heads in the displacement area is regular to be large in the middle density and gradually reduced towards two sides.
Further, the arrangement number of the emission heads in the displacement region satisfies the following formula:
wherein f (x) is a function of the number of emitter distributions per unit length;
setting the central point of the displacement area as an original point, and x is a coordinate value extending from the central point of the displacement area to the two ends of the displacement area;
pi is the circumference ratio; σ is related to the total length L of the displacement region, and σ is 0.1L to 0.3L.
Compared with two modes of uniform distribution and monotone descending distribution of the emitting heads, the distribution mode which has high middle density and gradually reduced densities at two sides has the highest replacement efficiency and is the most energy-saving replacement mode.
Further, the conveying mechanism comprises a conveying track arranged in the solvent pool, the conveying track in the solvent pool is used for guiding the wet gel felt into the displacement solvent and guiding the displaced wet gel felt out of the solvent pool after the wet gel felt travels a set stroke in the displacement solvent.
Wherein, the conveying track in the pond is various in form, such as rollgang, conveyer belt etc..
Further, the ultrasonic transmitting head is perpendicular to (right against) the conveying track in the tank.
The device further comprises a solvent reduction system, wherein the solvent reduction system comprises a circulating pipeline, and a pump body, a storage tank and a solvent dehydration device which are arranged on the circulating pipeline;
the circulating pipeline is communicated with an outlet and an inlet of the solvent pool;
the pump body is used for forcing the replacement solvent to circularly flow between the solvent pool and the solvent reduction system;
the solvent dehydration device is used for dehydrating the replacement solvent flowing out of the solvent pool;
the storage tank is used for storing and supplying the dehydrated replacement solvent to the solvent pool.
In addition, the solvent dehydration device is the prior art; the structure of the solvent dehydration device can be a pyramid type, a spiral type or a plurality of long cylinder types; the dehydrating agent comprises molecular sieve, calcium chloride or phosphorus pentoxide, etc.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
the utility model provides a pair of quick solvent replacement device, simple structure, the produced ultrasonic wave of ultrasonic vibration generator directly is used in replacement solvent molecule to and on the hydrone in the wet gel felt is used through replacement solvent, improved the flourishing degree of two kinds of molecules greatly, the replacement speed promotes greatly from this.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a rapid solvent replacement device provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a rapid solvent replacement device provided in embodiment 2 of the present invention.
Fig. 3 is a distribution rule diagram of the emitter in embodiment 3 of the present invention;
fig. 4 is a normal distribution diagram of the transmission head in embodiment 3 of the present invention.
Reference numerals:
1-wet gel felt; 2-a displacement solvent; 10-solvent bath; 11-an outlet; 12-an inlet; 20-a conveying mechanism; 21-conveying tracks in the tank; 30-solvent reduction system; 31-a circulation line; 32-a pump body; 33-storage tank 34-solvent dehydration unit; 40-an ultrasonic vibration generator; 41-ultrasound transmission head.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be further explained with reference to specific embodiments.
Example 1
As shown in fig. 1, the present embodiment provides a rapid solvent replacement device, including: a solvent tank 10, a conveying mechanism 20 and an ultrasonic vibration generator 40;
the solvent pool 10 is filled with a replacement solvent 2;
the conveying mechanism 20 is used for conveying the wet gel felt 1 through the replacement solvent 2 in the solvent pool 10;
the ultrasonic vibration generator 40 is disposed in the solvent tank 10, and ultrasonic waves generated by the ultrasonic vibration generator 40 act on the molecules of the substitution solvent 2 and the water molecules in the wet gel mat 1 to accelerate the solvent substitution speed.
The utility model discloses simple structure, the produced ultrasonic wave of ultrasonic vibration generator 40 directly is used in 2 molecules of replacement solvent to and on the hydrone in the wet gel felt 1 is used through replacement solvent 2, improved the active degree of two kinds of molecules greatly, the replacement speed promotes greatly from this.
In addition, the length of the solvent pool 10 can be prolonged according to the need of solvent replacement, the wet gel felt 1 is input into the replacement solvent 2 from one end of the solvent pool 10, the wet gel felt 1 is continuously subjected to solvent treatment in the process of walking in the replacement solvent 2, and when the wet gel felt 1 is output from the other end of the solvent pool 10 and is separated from the replacement solvent 2, all solvent replacement work can be completed at one time, so that the efficiency is greatly improved; compared with the existing solvent replacement technology, the solvent replacement time can be saved by 70-80%.
The conveying mechanism 20 comprises an in-tank conveying track 21 arranged in the solvent tank 10, wherein the in-tank conveying track is used for guiding the wet gel felt 1 into the replacement solvent 2 and guiding the wet gel felt 1 subjected to replacement treatment out of the solvent tank 10 after the wet gel felt 1 travels a set stroke in the replacement solvent 2.
In the present embodiment, the conveying rail 21 in the tank is a conveyor belt; an auxiliary feeding rail and a lower rail for guiding or guiding the wet gel mat are also arranged at the two ends of the solvent pool 10.
Wherein the ultrasonic vibration generator 40 includes an ultrasonic wave emitting head 41; a plurality of ultrasonic emission heads 41 are arranged at the bottom of the solvent tank 10. The ultrasonic transmitter head 41 is arranged perpendicular to (facing) the conveying track inside the tank, thereby transmitting ultrasonic energy to the wet gel mat on the conveying track to the maximum extent.
The present embodiment further includes a solvent reduction system 30, wherein the solvent reduction system 30 includes a circulation pipeline 31, and a pump body 32, a storage tank 33 and a solvent dehydration device 34 which are arranged on the circulation pipeline 31; the circulating pipeline 31 is communicated with the outlet 11 and the inlet 12 of the solvent pool 10; the pump body 32 is used to force the displacement solvent 2 to circulate between the solvent bath 10 and the solvent reduction system 30; the solvent dehydration device 34 is used for dehydrating the replacement solvent 2 flowing out of the solvent pool 10; the storage tank 33 is used to store and supply the dehydrated replacement solvent 2 to the solvent pool 10.
Wherein, preferably, the solvent dehydration device 34 comprises a molecular sieve, and a plurality of moisture absorption columns are arranged in the molecular sieve.
The utility model provides a pair of quick solvent replacement device, simple structure, the produced ultrasonic wave of ultrasonic vibration generator 40 directly is used in replacement solvent 2 molecules to and on the hydrone in the wet gel felt 1 is used through replacement solvent 2, improved the flourishing degree of two kinds of molecules greatly, the replacement speed promotes greatly from this.
Example 2
The structure of the present embodiment is substantially the same as that of embodiment 1, except that:
as shown in fig. 2, the in-tank conveying rail 21 is in the form of a conveying roller table.
And in the conveying direction of the wet gel felt 1, the intensity of the ultrasonic waves distributed in the solvent pool 10 is gradually reduced. Preferably, the ultrasonic intensity is distributed in the solvent pool 10 in a linear and gradually decreasing manner in the conveying direction of the wet gel mat 1. When the ultrasonic wave emitting heads 41 are uniformly arranged, the intensity of the ultrasonic waves emitted by the ultrasonic wave emitting heads 41 can be controlled to be different.
In the present embodiment, in a preferable mode, the arrangement density of the ultrasonic wave emitting heads 41 in the solvent tank 10 is gradually decreased in the conveying direction of the wet gel mat 1. The ultrasonic transmitting heads 41 are controlled by the same controller, so that the control system is simpler and the cost is lower.
Advance along with wet gel felt in the replacement solvent, the hydrone in the wet gel felt is replaced away gradually, and the required ultrasonic energy of solvent replacement of wet gel felt also reduces gradually, the utility model discloses a set up ultrasonic strength in the control solvent pond 10 and reduce gradually to the unnecessary energy consumption that has significantly reduced belongs to an energy-concerving and environment-protective green processing method.
Example 3
The structure of the present embodiment is substantially the same as that of embodiment 1, except that:
in the conveying direction of the wet gel mat, referring to fig. 3, the conveying path of the wet gel mat 1 in the replacement area is a concave arc, the arrangement density of the emission heads 41 is the largest at the lowest point of the arc, and the arrangement density of the emission heads 41 gradually decreases from the lowest point of the arc to both sides.
More preferably, the wet gel felt 1 is arranged in the replacement area in a bilateral symmetry manner in an arc shape; the arrangement density of the emitting heads 41 in the displacement region is regular to be large in the middle density and gradually reduced towards two sides.
Alternatively, as shown in fig. 4, the number of the emitters 41 arranged in the displacement region satisfies the following formula:
wherein f (x) is a function of the number of emitter distributions per unit length;
setting the central point of the displacement area as an original point, and x is a coordinate value extending from the central point of the displacement area to the two ends of the displacement area;
pi is the circumference ratio; σ is related to the total length L of the displacement region, and σ is 0.1L to 0.3L.
Experiments prove that compared with two modes of uniform distribution and monotone descending distribution of the emitting heads, the distribution mode which has high middle density and gradually reduced densities at two sides has the highest replacement efficiency and is the most energy-saving replacement mode. Compared with the technical scheme in the embodiment 2, the energy consumption of the embodiment is reduced by 20-40%.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (12)
1. A rapid solvent exchange device, comprising: the device comprises a solvent pool, a conveying mechanism and an ultrasonic vibration generator;
the solvent tank is filled with a replacement solvent;
the conveying mechanism is used for conveying the wet gel felt to pass through the replacement solvent in the solvent pool;
the ultrasonic waves generated by the ultrasonic vibration generator act on the displaced solvent molecules and the water molecules in the wet gel felt to accelerate the solvent displacement speed.
2. The rapid solvent replacement device of claim 1, wherein the ultrasonic vibration generator comprises an ultrasonic emitting head; the solvent pool is internally provided with a displacement area for solvent displacement, and the ultrasonic emitting heads are arranged at the bottom of the displacement area of the solvent pool.
3. The rapid solvent replacement device of claim 2, wherein the ultrasonic intensity disposed within the solvent bath replacement zone decreases gradually in the direction of conveyance of the wet gel mat.
4. The rapid solvent replacement device of claim 3, wherein the ultrasonic intensity is arranged in the solvent bath replacement zone to decrease linearly in the direction of conveyance of the wet gel mat.
5. The rapid solvent replacement device of claim 3, wherein the distribution density of the ultrasonic emission heads in the solvent pool replacement zone is gradually decreased in the conveying direction of the wet gel mat.
6. The rapid solvent displacement apparatus of claim 3, wherein the distribution function of the emission heads within the displacement zone is assumed to be f (y); wherein the starting point of the wet gel felt entering the replacement area of the flux pool is the original point, and y is the horizontal distance value between a certain point in the flux pool and the original point; (y) is the distribution density of the emission heads at the y point; then f (y) is a monotonically decreasing linear function, exponential function, or power function.
7. The rapid solvent displacement device of claim 2, wherein the transport path of the wet gel mat in the displacement zone is a concave arc in the transport direction of the wet gel mat, the distribution density of the emitter heads is greatest at the lowest point of the arc, and the distribution density of the emitter heads decreases from the lowest point of the arc to both sides.
8. The rapid solvent displacement device of claim 7, wherein the arc is disposed in bilateral symmetry; the distribution density of the emission heads in the displacement area is regular to be large in the middle density and gradually reduced towards two sides.
9. The rapid solvent displacement apparatus of claim 7 or 8, wherein the number of the arrangement of the emitter heads in the displacement region satisfies the following formula:
wherein f (x) is a function of the number of emitter distributions per unit length;
setting the central point of the displacement area as an original point, and x is a coordinate value extending from the central point of the displacement area to the two ends of the displacement area;
pi is the circumference ratio; σ is related to the total length L of the displacement region, and σ is 0.1L to 0.3L.
10. The rapid solvent replacement device according to claim 2, wherein the conveying mechanism comprises a tank conveying rail disposed in the solvent tank, the tank conveying rail being configured to guide the wet gel mat into the replacement solvent and to guide the wet gel mat after the replacement treatment out of the solvent tank after the wet gel mat has traveled a set stroke in the replacement solvent.
11. The rapid solvent displacement device of claim 10, wherein the ultrasonic emission head is disposed perpendicular to the sump feed track.
12. The rapid solvent replacement device according to claim 1, further comprising a solvent reduction system, wherein the solvent reduction system comprises a circulation pipeline, and a pump body, a storage tank and a solvent dehydration device which are arranged on the circulation pipeline;
the circulating pipeline is communicated with an outlet and an inlet of the solvent pool;
the pump body is used for forcing the replacement solvent to circularly flow between the solvent pool and the solvent reduction system;
the solvent dehydration device is used for dehydrating the replacement solvent flowing out of the solvent pool;
the storage tank is used for storing and supplying the dehydrated replacement solvent to the solvent pool.
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| CN201922442811.8U CN212247497U (en) | 2019-12-30 | 2019-12-30 | Quick solvent replacement device |
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| CN201922442811.8U CN212247497U (en) | 2019-12-30 | 2019-12-30 | Quick solvent replacement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020940A (en) * | 2019-12-30 | 2020-04-17 | 航天建筑设计研究院有限公司阳泉航天材料应用技术分公司 | Quick solvent replacement device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020940A (en) * | 2019-12-30 | 2020-04-17 | 航天建筑设计研究院有限公司阳泉航天材料应用技术分公司 | Quick solvent replacement device |
| CN111020940B (en) * | 2019-12-30 | 2024-06-04 | 航天建筑设计研究院有限公司阳泉航天材料应用技术分公司 | Quick solvent replacement device |
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