Combined type electrospinning fiber jet environment control unit based on controllable air flow
Technical field
The invention belongs to electrostatic spinning fields, are related to a kind of electrostatic spinning injection environment epidemic disaster constant control device.
Background technique
Electrostatic spinning technique is widely used in nano-fiber material preparation field.Nano-fiber material is because of its brilliant object
Reason, chemical characteristic, possess the field of being widely applied and unlimited development prospect, each state all is stepping up to improve existing electrostatic spinning
The electrospinning device of technology or development of new.In electrostatic spinning production process, by making the macromolecule for having charge molten
Liquid sprays in high-voltage electrostatic field, stretches, cleaving, solidification of volatilizing, and ultimately forms fibrous speciality.Influence electrospun fibers
The parameter of pattern and property has very much, for example, voltage swing, collecting board provided by high voltage power supply and between spinning nozzle away from
From, the glutinous bullet of the solubility of organic solvent in the surface tension of the shape of collecting board, area, solution, conductivity, solution, solution
Power, the weight of solution, flow velocity, the temperature of environment, humidity and surrounding magnetic field, electric field etc..Electrostatic spinning environmental parameter is to electrostatic
Spinning process plays decisive role, the especially temperature and humidity of electrospinning fibre injection environment, directly influences the life of electrospinning fibre
Yield and quality.The spinning equipment of most domestic is only surveyed and has been controlled to the environment temperature of spinning, and occasional carries out humidity
Simple manual intervention, such as increase and be allowed to dry the methods of drying prescription, dehumidifier, environment temperature is sprayed to electrospinning fibre based on such mode
Simple, the random control of humidity lacks the stability of serviceability and environmental parameter, extremely disadvantageous in electrospinning fibre
High quality of production or research.External a few high-end electrospinning fibre equipment is mounted with dedicated epidemic disaster control in injection environment
Device processed, but device structure is complicated, involves great expense, and is unfavorable for being promoted the use of on a large scale at home.
Summary of the invention
In order to solve electrostatic spinning epidemic disaster constant control, and enable to spinning space compact and adjustable problem, this
The following technical solutions are proposed: the combined type electrospinning fiber jet environment control unit based on controllable air flow for invention, including blowing
Slot, air draught slot, the blowing slot are enclose and hollow support frame, and the hollow layer of the blowing slot is connected to constant temperature
Constant humidity hair dryer forms the guiding device of air curtain, institute as air inlet with the hollow layer air inlet to blowing slot, the side wall of support frame
The blowing slot stated is correspondingly arranged air draught slot, and the air draught slot is enclose and hollow support frame, and hollow layer is connected to air-breathing
Blower, the air curtain that the blowing slot is formed is by air draught slot by suction fan outlet.
The utility model has the advantages that the combined type electrospinning fiber jet environment control unit of the present invention based on controllable air flow, it should
The auxiliary equipment that device is produced as electrospinning fibre is easily mounted on electrospinning fibre injection using simple tool
Scene adapts to a variety of injection environment such as single needle, Multi needle, and the section of controllable air flow is formed by blowing slot inflatable mouth, additional
The collecting board of bottom forms a relatively closed rectangular space in electrospinning fibre injection environment.Temperature in the space,
Humidity can carry out Linear Control by constant temperature and humidity gas source;The size in the space can be adjusted by bracket support arm length;It should
The sight that space is not formed in physical significance is blocked, convenient for the injection observation of operator's real-time perfoming electrospinning fibre;The space can
Prevent electrospinning fibre impurity from spraying the regional pollution environment other than collecting board;The spatial spread is strong, does not influence attached electricity
The installation and use of the devices such as field, magnetic field.The use of the device can be to produce the electrospinning fibre of high quality to lay solid ring
Border basis.The present invention as point design of setting out the combined type electrospinning fiber jet environment control unit based on controllable air flow,
Electrospinning fibre injection environment epidemic disaster is realized to accurately control, for improve the preparation quality of Electrospun Nanofibrous Materials: An lay it is solid
Basis.The modular appliance also has that low cost, applied widely, installation is simple, observation effect is good, environmental-friendly, system fortune
The advantages that row is stable and convenient for safeguarding.Be highly suitable for big-and-middle universities and colleges, research institute in one's power the units such as electrospinning fibre manufacturer into
Row is promoted.
Detailed description of the invention
Fig. 1 is electrospinning fibre injection operation schematic diagram;
Fig. 2 is constant temperature and humidity gas source, blowing slot, the constitutional diagram with bracket;
Fig. 3 is the constitutional diagram of air draught slot and suction fan;
Fig. 4 is the assembling figure of the combined type electrospinning fiber jet environment control unit based on controllable air flow;
Fig. 5 is a kind of lateral air curtain wind-guiding schematic diagram of embodiment;
Fig. 6 is a kind of lateral air curtain wind-guiding schematic diagram of embodiment.
Wherein: 1. constant temperature and humidity gas sources, 2. blowing slots, 3. brackets, 4. air draught slots, 5. suction fans, 6. strainers, 7. laterally
Blowing mouth, 8. electrospinning fibres, 9. collecting boards, 10. baffles, 11. crispatura curtain, 12. inner sidewalls, 13. lateral walls, 14. upsides
Wall, 15. lower walls, 16. partition walls.
Specific embodiment
Embodiment 1: convenient, accurate, the reliable and inexpensive control in order to solve electrospinning fibre injection ambient temperature and humidity,
The present embodiment provides a kind of combined type electrospinning fiber jet environment control unit based on controllable air flow, the device is by constant temperature perseverance
Moisture source, bracket, blowing slot, air draught slot, strainer, suction fan composition.
Wherein: the constant temperature and humidity gas source can export the adjustable air of temperature and humidity outward, and air mass flow is controllable, and constant temperature is permanent
Moisture source is the common device of automation control area.
The blowing slot is connected by above-mentioned constant temperature and humidity gas source with four blowing slots, and blowing slot controls air-flow with certain angle
Degree is blown downwards, and four blowing slots are mounted on the second level support arm of four support arms of bracket by card slot, four blowing slot head
Tail is connected.Blowing slot can be installed with rectangle wind groove according to actual needs, form the air curtain of a rectangle;The external peace of blowing slot
There is crispation type curtain, curtain can be pulled downward in four direction and one is articulated on air draught slot, is formed in physical significance
Confined space is so that the obturation effect of blowing slot and air draught slot is more preferable.Four blowing slots one of those be equipped with cross blowing mouth
For forming air curtain on the top in space, wherein the wind that lateral air outlet comes out can only be stopped by tiny syringe needle, it will not be to whole
The generation of body wind direction significantly interferes with.Blowing slot on lateral air outlet opposite pastes lightweight folding 90 by internal layer lower position
Angle line type hinge, so that most of wind of lateral air curtain exports above device, it is empty that only a small amount of beam wind can flow into injection
In, but not interference is generated to the injection track of electrospinning fibre.The gas outlet width of the blowing slot in five directions can be adjusted manually
Section;When gas source and flow amount is constant, air outlet width is smaller, and wind speed is bigger, and the air curtain deformation of formation is smaller.The bracket is aluminium
Alloy material is made, and is made of interior diameter ring, one level of support arm and second level support arm.The length of the adjustable interior diameter of bracket
So as to be fixed on the electrospun solution container of different size;The length of the four direction support arm of bracket can pass through adjusting
The extension elongation of second level support arm is adjusted, and adapts to the blowing slot of different length.
The air draught slot is to inhale to form stable space wind field in the rectangle that the surrounding of electrospinning fibre collecting board is installed
Wind groove;Electrospinning fibre is influenced when spraying by many kinds of parameters, is had small part fiber and is sprayed control area, therefore in air draught slot
Inside is equipped with the baffle of adjustable-angle, the winged electrospinning fibre of spray is collected, to form regular, controllable electrospinning on collecting board
Fiber shape.
The strainer belongs to replaceable consumptive material, and strainer is mounted among suction fan and air draught slot, for filtering out injection
Electrospinning fibre impurity in air draught slot.The suction fan provides air-breathing power for air draught slot.
By above-mentioned, combined type electrospinning fiber jet environment control unit described in the present embodiment based on controllable air flow, by
Constant temperature and humidity gas source, bracket, blowing slot, air draught slot, strainer, suction fan composition.The device produces attached as electrospinning fibre
It is not limited by a space, when belonging to device application not by electrospinning Effect of Materials, can be various types of electrospinnings by simply installing
Equipment provides reliable, convenient and fast temperature and humidity environmental Kuznets Curves.
In the embodiment, the user of the combined type electrospinning fiber jet environment control unit based on controllable air flow is provided
Method:
The length that demand adjusts bracket support arm is sprayed according to electrospinning fibre first, i.e. second level support arm stretches out one level of support
The length of arm selects corresponding blowing slot according to the length of support arm, so that it is determined that the length and width of rectangular space;Second level support arm
Forward direction and laterally be equipped with card slot, for fixing blowing slot;Then wind groove is fixed in the card slot of second level support arm, is determined
Each blowing slot ending connects;Then the interior diameter that bracket is adjusted according to the outer dia of electrospun solution external container, according to electricity
The height that injection demand determines bracket is spun, then bracket is fixed on to the corresponding position of external container together together with blowing slot.Hand
It is dynamic to adjust blowing slot lower section and lateral air outlet size and angle;It is equipped with curtain of crispaturaing in the outside of blowing slot, when to electrospinning fibre
When the airtight space of dimension requires tighter, curtain can be pulled down, in the exterior snap for hanging over air draught slot, that is, pass through blowing slot wind
Curtain and roller shutter form two seals face.
Four blowing slots are connected with constant temperature and humidity gas source with gas-guide tube.Constant temperature and humidity gas source can freely set guiding blowing
The temperature and humidity and flow of the air of slot.Collecting board surrounding in lower section is equipped with air draught slot, and each air draught slot ending is connected, and with
Blowing slot forms corresponding relationship up and down.Electrospinning fibre has small part fiber and sprays control area when spraying, so in air draught slot
Inside be equipped with the baffle of adjustable angle, collect the winged electrospinning fibre of spray, while can also be formed on collecting board regular, controllable
Electrospinning fibre shape;Aspiration motor is connect by replaceable strainer with four air draught slots, by adjusting turning for aspiration motor
Speed can make air draught slot generate different inspiratory capacities.It tests in laboratory conditions, the gas output of air inlet motor compares aspiration motor
Inspiratory capacity it is more 20% when, more efficiently confined space effect can be formed.
Embodiment 2: a kind of combined type electrospinning fiber jet environment control unit based on controllable air flow, including blowing slot,
Air draught slot, the blowing slot are enclose and hollow support frame, and the hollow layer of the blowing slot is connected to constant temperature and humidity
For hair dryer with the hollow layer air inlet to blowing slot, the side wall of support frame forms the guiding device of air curtain as air inlet, described
Blowing slot is correspondingly arranged air draught slot, and the air draught slot is enclose and hollow support frame, and hollow layer is connected to air-breathing wind
Machine, the air curtain that the blowing slot is formed is by air draught slot by suction fan outlet.By above-mentioned, formed blowing slot and air draught slot it
Between the air curtain that flows of air so that injection environment is to form close to confined space, and air curtain is formed as constant temperature, constant humidity so that
The closed environment is constant temperature, constant humidity environment, to construct the closed permanent epidemic disaster space of collaboration.
As shown in figure 4, in one embodiment, the inner sidewall of the blowing slot is by bracket connection interior diameter ring with fixation
Electrospinning fibre injection apparatus forms interior diameter ring and electrospinning fibre injection apparatus and is tightly connected, and, in the part of blowing slot
Side wall outputs cross blowing mouth, and the cross blowing mouth releases can be covered in the air curtain that support frame encloses plane substantially.At this
In embodiment, in order to further improve the closure of the confined space, transverse direction is formed about in injection syringe needle with cross blowing mouth
Air curtain greatly ensure that constant humidity, the stability of isoperibol.
In another embodiment, in order to solve the problems, such as lateral air curtain wind-guiding, so that the support that cross blowing mouth is opposite
The lower position of the inner wall of frame pastes folding an angle of 90 degrees line style hinge so that line style hinge formed inclined surface with it is described
The air curtain of plane intersects, and the top wind-guiding by the inclination towards beam wind curtain, so that air curtain can not generate interference gas
Stream, using inclination, wind-guiding, worth specification, the top wind-guiding not refer only to vertical direction wind-guiding upwardly,
It is no matter vertical or wind-guiding can complete the function of wind-guiding obliquely.
However, changing lateral air curtain direction by inclined surface merely makes wind-guiding upwards, it may still will appear disturbance gas
Stream, so that there are unstable possibility for inner space, in order to solve this problem, in one embodiment, such as Fig. 5, with the transverse direction
The inner sidewall of the opposite air draught slot of blowing mouth outputs air inlet compatible with cross blowing mouth, and partition wall will be provided with lateral suction
The lateral wall isolation opposite with the inner sidewall of the inner sidewall in air port, and formed by inner sidewall, partition wall with transverse air suction mouth
Space or the space that is formed of inner sidewall with transverse air suction mouth, partition wall and lower wall to corresponding upper side wall wind-guiding.
And the technical problem is equally solved, and be not limited to export to lateral air curtain, and consider its application, it is described by having
The inner sidewall of transverse air suction mouth, the space of partition wall formation or inner sidewall, partition wall and lower wall with transverse air suction mouth
The corresponding upper side wall in the space of formation is equipped with suction ventilator, such as Fig. 6, or inner sidewall, partition wall by having transverse air suction mouth
Or it is closure wall, the downside that inner sidewall, partition wall and the space of lower wall formation with transverse air suction mouth, which correspond to upper side wall,
Wall outputs blowing mouth, which corresponds to air draught slot.Lateral air curtain is absorbed by suction ventilator or directly by the air draught of lower section
Slot absorbs, and the part wind energy can be allowed to be reused, especially second scheme, is absorbed by lower section air draught slot, relatively
It is more simple in structure in the first scheme.
And as preferably to upper side wall or the preferred embodiment of lower wall wind-guiding, being pasted in transverse air suction mouth inner wall lower position
Folding an angle of 90 degrees line style hinge, so that the one end for the inclined surface that line style hinge is formed is connected to demarcation plate, inclined surface has
It is partially disposed in the part in the space, the air curtain institute that the inclined surface being placed in the space can be formed with lateral air outlet
Intersect in plane.Through this construction, so that inclined surface is as change of the wind structure, air-supply that can be more accurate upwards or to
Under.
In one embodiment, air-breathing wind is mounted on for filtering out the strainer for the electrospinning fibre impurity being ejected into air draught slot
Between machine and air draught slot.
In a kind of scheme, in order to make air curtain more stable, it is contemplated that under air stream constant, blowing mouth width is got over
Small, air curtain is stronger, and isolation effect is better, thus the hollow layer is enclosed out by the support plate being parallel to each other, support frame its
The direction of air curtain is formed, support plate that is opposite and forming hollow layer shows mutual intilted shape near end, and
To tend to closing connection, until tip blowing mouth is outputed in bottom end, the opening width of blowing mouth is excellent between 0.05-0.08mm
Select scheme.
In one embodiment, two support plates with certain distance are laterally extended on inner sidewall, and in support plate
End nearby shows mutual intilted shape, and to tend to closing connection, blows until outputing lateral tip close at closing
Air port.And the opening width of the blowing mouth is preferred embodiment between 0.05-0.08mm, so that cross blowing mouth was formed
Air curtain is also relatively stable.
In one embodiment, curtain of crispaturaing, the inner wall phase of air draught slot are installed between air draught slot and the outer wall of air-out groove
To and slope inwardly to form baffle, to consolidate the buffer action of air curtain.
In one embodiment, the length of the support frame, hollow layer, blowing mouth, air outlet, bracket, interior diameter ring
And/or width is adjustable.This stretching structure belongs to the conventional means of this field, however utilizes the means, can be for air curtain
The Space Scale of formation is adjusted, thus, be incorporated into the structure of blowing slot, air draught slot, can more convenient use, such as root
Space etc. is changed according to experimental situation.
In each example scheme in the present embodiment, a kind of combined type electrospinning fibre spray based on controllable air flow is recorded
Environment control method, the fixed bracket of the inner sidewall of blowing slot are penetrated, the interior diameter ring of connection consolidates electrospinning fibre injection apparatus
It is fixed, it forms interior diameter ring and electrospinning fibre injection apparatus and is tightly connected;Blowing slot, with fixation, keeps electrospinning fine by suspension installation
Dimension injection apparatus is located at the top of horizontal plane, and the lower section that collecting board corresponds to electrospinning fibre injection apparatus is placed;Electrospinning fibre spray
In injection device course of injection, blowing slot is supplied in the gas source of constant-humidity constant-temperature by constant temperature and humidity hair dryer, and in blowing slot,
Air-flow passes through hollow layer to be surrounded the support frame of blowing slot with downward wind-guiding, and dries in the tip that blowing slot lower wall is formed
To form air curtain, which is received by the air draught slot corresponded to below blowing slot for mouth outlet air, and in the air-breathing of air draught slot connection
With air draft under the effect of blower wind-guiding.The cross blowing mouth that the inner wall of blowing slot is outputed in part, in constant temperature and humidity hair dryer air feed
Under, form lateral air curtain with cover electrospinning fibre injection apparatus a horizontal plane above.
In an arrangement, which laterally moves at the inner wall of the opposite rectangular support frame of cross blowing mouth,
The inclined surface that the folding an angle of 90 degrees line style hinge that the lower position of its inner wall is pasted is formed is intersected with the lateral air curtain,
And the top wind-guiding by the inclination towards beam wind curtain (top not only includes vertical direction, further includes inclination top).
In an arrangement, which is discharged and is formed by inner sidewall, partition wall with transverse air suction mouth
The space that space or inner sidewall with transverse air suction mouth, partition wall and lower wall are formed is received, and in the sky
Between corresponding upper side wall suction ventilator is installed with air draft.
In an arrangement, the curtain expansion of crispaturaing between blowing slot and the outer wall of air draught slot, and will be to form air curtain
Protective device.
Embodiment 3: a kind of combined type electrospinning fiber jet environment control unit based on controllable air flow, as a kind of independence
Embodiment or materialization as scheme in embodiment 2, the blowing slot be to be made of four rectangular support frames,
Integral type or separate type connection, each rectangular support are formed by the connection type of left and right side walls for four rectangular support frames
The upper side wall of frame is connected to blowing slot, and the inner sidewall and lateral wall are closure wall, however four rectangular support frames extremely
A few inner sidewall outputs cross blowing mouth, and the lower wall has blowing mouth, issues air curtain by the blowing mouth out,
In, the inner sidewall of a rectangle support of blowing slot outputs cross blowing mouth.
In a kind of scheme, the lower position of the inner wall of the opposite rectangular support frame of cross blowing mouth pastes folding 90
Angle line type hinge is spent, so that the inclined surface that line style hinge is formed is intersected with the air curtain of the plane, and by the inclination towards transverse direction
The top wind-guiding of air curtain.
In a kind of scheme, the inner sidewall of the rectangle support of the air draught slot opposite with the cross blowing mouth is outputed and is laterally blown
The inner sidewall for the being provided with transverse air suction mouth lateral wall opposite with the inner sidewall is isolated for the compatible air inlet in air port, partition wall,
And by the space that is formed of inner sidewall, partition wall with transverse air suction mouth or inner sidewall, the partition wall with transverse air suction mouth
The space formed with lower wall is to the corresponding upper wall wind-guiding in the space.
In a kind of scheme, the inner sidewall of the rectangle support of the air draught slot opposite with the cross blowing mouth is outputed and is laterally blown
The inner sidewall for the being provided with transverse air suction mouth lateral wall opposite with the inner sidewall is isolated for the compatible air inlet in air port, partition wall,
The space formed by inner sidewall, partition wall with transverse air suction mouth or the inner sidewall with transverse air suction mouth divide
The corresponding upper side wall in space that next door and lower wall are formed is equipped with suction ventilator.
In a kind of scheme, the inner sidewall of the rectangle support of the air draught slot opposite with the cross blowing mouth is outputed and is laterally blown
The inner sidewall for the being provided with transverse air suction mouth lateral wall opposite with the inner sidewall is isolated for the compatible air inlet in air port, partition wall,
By the space that is formed of inner sidewall, partition wall with transverse air suction mouth or the inner sidewall with transverse air suction mouth, partition wall and
It is closure wall that the space that lower wall is formed, which corresponds to upper side wall, which outputs blowing mouth, which corresponds to air draught slot.
In a kind of scheme, the air draught slot is made of four rectangular support frames, is passed through for four rectangular support frames
To form integral type or separate type connection, the upper side wall of each rectangular support frame has to outlet air the connection type of left and right side walls
For the air curtain that slot is formed with air inlet that is corresponding and entering the wind, the inner sidewall and lateral wall are closure wall, the lower wall tool
There is air outlet, which is connected to the suction fan.
In a kind of scheme, folding an angle of 90 degrees line style hinge is pasted in transverse air suction mouth inner wall lower position, so that
The one end for the inclined surface that line style hinge is formed is connected to demarcation plate, and inclined surface has the part being partially disposed in the space, sets
Intersect in plane where the air curtain that the inclined surface in the space can be formed with lateral air outlet.
In a kind of scheme, the hollow layer is enclosed out by the support plate being parallel to each other, and in support frame, it forms air curtain
Direction, support plate that is opposite and forming hollow layer shows mutual intilted shape near end, and to tend to seal
Connection is closed, until tip blowing mouth is outputed in bottom end.
In a kind of scheme, two support plates with certain distance are laterally extended on inner sidewall, and at support plate end
Portion nearby shows mutual intilted shape, and to tend to closing connection, until outputing lateral tip blowing close at closing
Mouthful.
In a kind of scheme, the support frame, hollow layer, blowing mouth, air outlet, bracket, interior diameter ring length and/
Or width is adjustable.
In a kind of scheme, the strainer for filtering out the electrospinning fibre impurity being ejected into air draught slot is mounted on suction fan
Between air draught slot.
The preferable specific embodiment of the above, only the invention, but the protection scope of the invention is not
It is confined to this, anyone skilled in the art is in the technical scope that the invention discloses, according to the present invention
The technical solution of creation and its inventive concept are subject to equivalent substitution or change, should all cover the protection scope in the invention
Within.