CN207745850U - A kind of aeroge production drying kettle - Google Patents
A kind of aeroge production drying kettle Download PDFInfo
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- CN207745850U CN207745850U CN201721662202.8U CN201721662202U CN207745850U CN 207745850 U CN207745850 U CN 207745850U CN 201721662202 U CN201721662202 U CN 201721662202U CN 207745850 U CN207745850 U CN 207745850U
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- autoclave body
- drying kettle
- kettle
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Abstract
The utility model discloses a kind of aeroge production drying kettles, include the kettle cover of autoclave body and sealing structure, and the drying kettle is equipped with gas outlet and air inlet, and autoclave body is internally provided with supporter, for placing aerogel products；Drying kettle outer wall surface is provided with insulating layer, and the internal layer of the insulating layer is thermal insulation coatings, middle layer is glass silk flosssilk wadding, and outer layer is coated using high temperature resistant felt.The drying kettle of the utility model ensures corrosion-free, nonhygroscopic, nontoxic, free from extraneous odour, is unlikely to deform, does not decompose, and the service life for meeting drying kettle requires.
Description
Technical field
The utility model belongs to aerogel material and prepares forming field, and in particular to a kind of overcritical production aeroge of alcohol
Drying device.
Background technology
Aeroge refers to a kind of nano-porous materials made of being extracted by supercritical technology, internal containing a large amount of empty
Gas, hole ratio may be up to 99.8%, and specific surface area can reach 200m2~1000m2/ g, aperture in 5~20nm, aeroge it is close
Spend extremely low, minimum reachable 3kg/m3.Its unique microcosmic nanostructure keeps it apparent in characteristics such as mechanics, acoustics, optics, calorifics
Different from corresponding glassy state.It is a kind of material being provided simultaneously with the comprehensive performances such as heat-insulated, fire prevention, sound-absorbing, explosion-proof, damping.
The aerogel material of home and abroad producer production at present is overcritical with CO 2 supercritical and normal temperature and pressure, alcohol
Technique is prepared.And aeroge intensity that CO 2 supercritical and normal temperature and pressure technique are prepared is low, toughness is small, structure not
Stablize, significantly limits its application range.The overcritical aeroge intensity height since its overall cost is relatively low, prepared of alcohol,
The features such as good toughness, use scope are more and more extensive.But its process of current alcohol supercritical drying process is complex, control strip
Part is more, such as：Drying temperature, pressure, drying time, etc..These conditions control the improper shakiness that can all cause aerogel structure
It is fixed.The especially control of supercritical pressure, due to gas exist partial pressure property, and in supercritical drying process due to equipment inside
The partial pressure of air, often so that the case where alcohols feedstock fails to reach supercritical pressure.And accurately controlling for these parameters is equal
It needs to realize by supercritical drying equipment, therefore, an advanced drying equipment is to aeroge performance and product qualification rate
It is most important.
Chinese patent " device for supercritical fluid drying and the method for preparing aerogel material,
201110388627.5 " disclose a kind of device for supercritical carbon dioxide drying, including recycle carbon dioxide storage tank, add
Press pump, one or more drying kettle, one or more separating stills, recycling can, compression pump and condenser.But the knot of drying kettle
The limitation of structure and flow, heating cooling efficiency it is not high, and can not precise control device supercritical pressure, may influence whether gas
Gel rubber material performance and product qualification rate.
Utility model content
The utility model provides a kind of with special knot mainly for the work characteristics of drying kettle in aerogel production process
The drying kettle of structure extends the service life of drying kettle, and equipment internal temperature is uniform, and production efficiency improves.
The technical solution adopted in the utility model is as follows：
A kind of aeroge production drying kettle, includes the kettle cover of autoclave body and sealing structure, and the drying kettle is equipped with outlet
Mouth and air inlet, autoclave body are internally provided with supporter, for placing aerogel products；Drying kettle outer wall surface is provided with insulating layer,
The internal layer of the insulating layer is thermal insulation coatings, middle layer is glass silk flosssilk wadding, and outer layer is coated using high temperature resistant felt.
Further, the drying kettle is additionally provided with gas pressurized device, and the gas pressurized device includes passing through
The gas boosting pump and gas reservoir that pipeline is connected with air inlet, are additionally provided with second pressure gauge on pipeline.
Further, the upper-end part of driving of autoclave body is provided with safe unit, and the safe unit includes and phase inside autoclave body
Connection includes safety valve and first pressure gauge.
Further, the autoclave body is sandwich, and autoclave body lower end is equipped with oil inlet pipe, and oil inlet pipe passes through inside autoclave body,
And be connected with autoclave body interlayer, autoclave body sidewall upper is equipped with interlayer oil outlet, and interlayer oil outlet is connected with interlayer.
Further, oil inlet pipe is disk-like structure, and coil pipe is distributed in inside autoclave body.
Further, oil inlet pipe outlet is connected by the pipeline outside autoclave body with the interlayer oil inlet of autoclave body.
Further, autoclave body interlayer is internally provided with the baffle plate for increasing heat-conducting area, and the baffle plate is at spiral line type
It is distributed in inside the interlayer of autoclave body.
Further, the bottom of autoclave body is provided with sewage draining exit.
Further, the drying kettle is vertical structure, and autoclave body (1) and kettle cover (2) open knot soon using clamping hoop type hydraulic pressure
Structure.
Further, in autoclave body side wall close to upper end position, air inlet is arranged in autoclave body bottom for gas outlet setting,
The vacuum unit is arranged at the top of kettle cover.
The advantageous effects that the utility model has are as follows：
One, the drying kettle outer wall surface of the utility model is provided with insulating layer, and the internal layer of insulating layer is thermal insulation coatings, centre
Layer is glass silk flosssilk wadding, and outer layer is coated using high temperature resistant felt, it is ensured that corrosion-free, nonhygroscopic, nontoxic, free from extraneous odour is unlikely to deform, no
It decomposes, and the service life for meeting drying kettle requires.
Two, the autoclave body of the utility model uses hollow interlayer structure, and oil inlet pipe uses pass-through mode structure, inside autoclave body
It is connected inside oil inlet pipe and interlayer, realizes the quick heating and cooling of drying kettle, have the spies such as heating and cooling are fast, heat conduction is fast
Point, cooling system can make autoclave body temperature be reduced to room temperature, shorten machine cycle within a very short time, greatly save
The energy needed for boosting, while oil inlet pipe outlet is connected with interlayer oil inlet by the pipeline outside autoclave body, this outside connects
Logical mode is simple and reliable for structure, and the sealing of inflow pipeline easy to implement.
Three, the oil inlet pipe inside the utility model autoclave body uses coil arrangement, increases heat-conducting area, it is ensured that in autoclave body
The rapid temperature rise and drop in portion, while the oil inlet pipe of coil arrangement improves drying efficiency close to the supporter of aerogel products.
Four, the interlayer of the utility model autoclave body is equipped with deflector, and deflector is arranged in interlayer using spiral result, can be added
Fast equipment integral elevating temperature, and can guarantee that equipment or more temperature is uniform.
Five, the utility model is provided with autoclave body and kettle cover temperature sensor in drying system, for monitoring reaction temperature, and
Control system has been implemented in combination with accurately controlling for temperature.
Six, the utility model kettle cover uses safety anti-explosive structure, while kettle cover top is provided with safety-valve, it is ensured that dry
The safety of drying system.
Seven, the drying equipment lower end of the utility model is equipped with sewage draining exit, facilitates equipment internal cleaning.
Description of the drawings
Fig. 1 is the theory of constitution block diagram of the utility model drying system；
Fig. 2 is the utility model autoclave body transverse sectional view and internal oil inlet pipe structural schematic diagram；
Fig. 3 is baffle arrangement schematic diagram in the utility model autoclave body longitudinal sectional view and interlayer.
Reference numeral is：1-autoclave body；2-kettle covers；3-gas outlets；4-kettle wall temperature sensors；5-air inlets；6—
Sewage draining exit；7-gas reservoirs；8-kettle cover temperature sensors；9-vacuum extractors；10-safety valves；11-first pressure gauges；
12-supporters；13-oil inlet pipes；14-oil inlet pipe imports；15-oil inlet pipes export；16-interlayer oil outlets；17-interlayers into
Hydraulic fluid port；18-gas boostings pump；19-condensers；20-condenser coils；21-recycling storage tanks；22-cooling liquid inlets；
23-cooling liquid outlets；24-heat conduction fuel tanks；25-the first hydraulic pump；26-cooling oil boxes；27-cooling coils；28-is cold
Oil tank；29-the second hydraulic pump；30-coolant supply apparatus；31-valves；32-cooling liquid outlets；33-coolant liquids into
Mouthful；34-second pressure gauges；35-heat conduction fuel tank oil inlets；36-heat conduction fuel tank oil outlets；37-heating cooling units；
38-condensing recovery units；39-baffle plates；40-cooling oil box shells；41-cold oil storage tank oil inlets；42-cold oil storage tanks
Oil outlet；44-condenser shells；45-interlayers；46-insulating layers.
Specific implementation mode
As illustrated in fig. 1 and 2, the drying equipment of the supercritical methanol technology production aerogel material of the utility model, including drying kettle
And corollary apparatus.Drying kettle includes autoclave body 1 and kettle cover 2；Autoclave body 1 is Explosion composite harden structure made of stainless steel 304 material.Kettle
The upper-end part of driving of body 1 is provided with safe unit, and safe unit includes being connected with inside autoclave body including safety valve 10 and first
Pressure gauge 11, it is ensured that the safety of drying system.
Autoclave body 1 is sandwich, and 1 side wall of autoclave body is equipped with gas outlet 3 close to upper end, and 1 bottom of autoclave body is equipped with air inlet 5 and row
Dirty mouth 6, sewage draining exit 6 are used for the removing of autoclave body internal residual substance, and air inlet 5 is used for gas boosting.The side wall and kettle of autoclave body 1
It is provided with temperature sensor at least one on lid 2, kettle wall temperature sensor 4 and kettle cover preferably is respectively set on side wall and kettle cover 2
Temperature sensor 8；The outer wall surface of drying kettle autoclave body 1 is provided with insulating layer 46, and the internal layer of insulating layer 46 is thermal insulation coatings, centre
Layer is glass silk flosssilk wadding, and outer layer is coated using high temperature resistant felt.Thermal insulation material requirement is corrosion-free to equipment in dry production process, does not inhale
Damp, nontoxic, free from extraneous odour is unlikely to deform, does not decompose, and meets service life requirement.
In order to realize that rapid temperature rise and drop, 1 lower end of autoclave body are equipped with oil inlet pipe 13, oil inlet pipe 13 passes through inside autoclave body 1, and and kettle
Interlayer body is connected, and 1 sidewall upper of autoclave body is equipped with oil outlet 16, and oil outlet 16 is connected with interlayer, to by inlet pipeline and
The interlayer of autoclave body is connected.Oil inlet pipe 13 is disk-like structure in 1 internal part of autoclave body, and 1 inside of autoclave body is equipped with close to lower end sets
Rack 12, supporter 12 are located at the top of 13 coil pipe of oil inlet pipe, and in production process, aeroge semi-finished product are placed on supporter 12.
As an implementation, oil inlet pipe exports the 15 interlayer oil inlets 17 by pipeline and autoclave body 1 outside autoclave body 1
It is connected, this external mode being connected to is simple and reliable for structure, and the sealing of inflow pipeline easy to implement.The upper end of autoclave body 1
Position is provided with safe unit, and the safe unit includes being connected with inside autoclave body including safety valve 10 and first pressure gauge
11。
As an implementation, drying system is additionally provided with gas pressurized device, and gas pressurized device includes passing through pipe
The gas boosting pump 18 and gas reservoir 7 that road is connected with air inlet 5, are additionally provided with second pressure gauge 34 on pipeline.
Corollary apparatus includes vacuum unit 9, the heating cooling unit that control unit is connected to by pipeline, valve 31
37, alcohol cools down recovery unit 38；Control unit and vacuum unit 9, heating cooling unit 37,38 Electricity Federation of alcohol cooling recovery unit
It connects, and state modulator is dried according to the sensor on autoclave body and corollary apparatus.
Vacuum unit 9 is the vacuum pump being arranged at the top of kettle cover 2 by pipeline, is connected inside vacuum pump and autoclave body 1,
The vacuum degree in production process inside autoclave body 1 is met to realize.
The purpose of vacuum unit 9 is that wet gel can be made before it is dried, is set in vacuum state, removal inside equipment
Influence of standby other gases of inside to supercritical pressure increases to accurately control the supercritical pressure of alcohol vapor without passing through
The modes such as integral pressure ensure alcohols supercritical pressure inside equipment in big autoclave body, can more accurately control overcritical pressure
Power ensures aerogel material performance and product qualification rate；Drying equipment integral pressure is reduced simultaneously, improves the safety of equipment
Property.
It says in general sense, substance all has its critical pressure and critical-temperature.In engineering, by the pressure residing for certain fluid
The state that power and temperature control in its critical pressure and critical-temperature is known as supercriticality.In the supercritical state, gas
There is no interface presence between body and liquid, but as a kind of uniform fluid between gas and liquid.This stream
Body is gradually discharged from gel, since there is no liquid-vapor interface, capillarity is also just not present, therefore will not cause gelinite
Contraction and structural damage finally obtain gassiness until whole fluids are all discharged from gel, there is nano-pore knot
The material of structure.Therefore, alcohols will reach supercriticality, it is necessary to its temperature be controlled, pressure value is critical value, in temperature
It rises, alcohol-based liquid can gradually become gas, and pressure also rises therewith in kettle.And numerical value shown by autoclave body pressure gauge is inside autoclave body
The pressure value of mixed gas must just exclude other gases point inside autoclave body to accurately show the pressure value of alcohol gas
The influence of pressure, therefore vacuumized to autoclave body before heating excludes air in kettle, so that it may with by pressure gauge more accurately
Judge whether the pressure value of alcohol gas in kettle reaches critical value.
It includes coolant supply apparatus 30, heat conduction fuel tank 24, cooling oil box 26, cold oil storage tank 28 to heat cooling unit；It leads
Heating device built in deep fat case 24, heat conduction fuel tank outlet 36 are connected to oil inlet pipe import 14, the import of heat conduction fuel tank 24 with it is fuel-displaced
Mouth 16 passes through pipeline connection；It is provided with the first hydraulic pump 25 between heat conduction fuel tank outlet 36 and oil inlet pipe import 14, is used for pipeline
The driving of interior oil medium.Heating device is natural gas or alcohol mode of heating, while temperature in the kettle automatically controls, temperature control essence
Degree is ± 2 DEG C, and the conduction oil after heating carries out autoclave body heating by the coil pipe and chuck for squeezing into drying kettle with hydraulic pump.
Cooling oil box 26 includes cooling coil 27 and cooling oil box shell 40, a termination cold oil storage tank 28 of cooling coil 27
Oil inlet 41, the oil outlet 16 of the other end and autoclave body 1 passes through piping connection；Cold oil storage tank oil outlet 42 connects the oil inlet of autoclave body 1
It is connected inside pipe import 14, coolant supply apparatus 30 and cooling oil box shell 40；Oil inlet pipe import 14 and cold oil storage tank 28
Between be provided with the second hydraulic pump 29, the driving for oil medium in pipeline.Cooling principle is constantly following by coolant liquid
Ring cools down to the shell of component where condenser, realizes and cools down to condenser, the final drop realized to oil medium in pipeline
Temperature.Wherein coolant liquid is pure water or aqueous solution.
It includes condenser 19 that alcohol, which cools down recovery unit 38, and condenser 19 includes condenser coil 20 and condenser shell 44, cold
One end of solidifying coil pipe 20 is connected with the gas outlet 3 of autoclave body 1, and the other end is connected with recycling storage tank 21；Setting in the middle part of condenser
There is cooling liquid inlet 22, with coolant supply apparatus 30 by pipeline connection, upper end of condenser is equipped with cooling liquid outlet 23, and cold
But liquid supplying device 30 is connected by pipeline；It is connected inside coolant supply apparatus 30 and condenser shell 44.Alcohol recycles
Coolant liquid only cools down to condenser coil 20 in the process so that then the alcohol devaporation in coil pipe is recovered to recycling at liquid
In storage tank 21.
Control unit is made of electrical power control cabinet, display operation platform, equipment start-stop button box.It has time in electrical power control cabinet
It opens, contactor, voltmeter, ammeter, system master switch etc..The conduction oil oil temperature of control unit and drying system setting shows,
The sensors electrical connection such as dry temperature in the kettle setting and display, fuel gas detection, drying kettle over-temp and over-pressure sound-light alarm, and control
The equipment start-stops buttons such as Heat-transfer Oil Pump processed, cooling tower fan, water pump.Control unit is using PLC programmable logic arrays control system
System, with pressure setting and display, temperature in the kettle are shown, electric control valve controls output etc. in reference record, kettle.
As shown in figure 3,1 interlayer 45 of autoclave body is internally provided with baffle plate 39, the baffle plate 39 is distributed at spiral line type
Inside the interlayer of autoclave body 1, the purpose is to increase heat exchange area, temperature rate is improved, to accelerate equipment integral elevating temperature,
And it can guarantee that equipment or more temperature is uniform.
The specific working mode of the utility model is as follows：
One, aeroge material is fitted into dry autoclave body 1, covers kettle cover 2；
Two, pumped vacuum systems is opened, drying kettle is vacuumized, pressure in kettle is made quickly to be down to 0.01mpa or less；
Three, it is heated to heating fuel tank, while opening hot recycle pump, heated up to autoclave body by hot-oil circulation, when warm in autoclave body
Degree, i.e. supercritical drying process starts after pressure reaches setting value, at this moment only needs to stablize pressure, temperature for a period of time i.e.
It can；
Four, as temperature in the kettle rises, autoclave body internal pressure rises therewith, when pressure rises to setting value, opens alcohol
Recovery system passes through first pressure meter reading and control valve so that pressure maintains to stablize in kettle；
Five, when temperature in the kettle rises to set temperature, temperature, pressure is kept into for certain time, then stops heating, adjusts
Whole recovery system valve accelerates recycling, so that pressure in kettle is declined, until normal pressure；
Six, when pressure is to normal pressure in kettle, gas pressurized device is opened, supplements pressure, while recovery system continues recycling and lets out
Pressure, until raw materials recovery is completed in kettle；
Seven, hot-oil circulation is closed, opening cold oil cycle makes autoclave body temperature quickly be down to room temperature, takes out product in kettle.
The pumped vacuum systems of the utility model can make wet gel before it is dried, and vacuum state, removal are in inside equipment
Influence of other gases to supercritical pressure inside equipment, to accurately control alcohols supercritical pressure, without by increasing kettle
The modes such as internal integral pressure ensure alcohols supercritical pressure inside equipment, can more accurately control supercritical pressure, protect
Demonstrate,prove aerogel material performance and product qualification rate；Drying equipment integral pressure is reduced simultaneously, improves the safety of equipment.Simultaneously
The utility model is provided with alcohol retracting device, is combined with gas pressurized device, realizes raw materials recovery and recycling in kettle,
Reduce cost.
Claims (10)
1. a kind of aeroge production drying kettle, it is characterised in that：The drying kettle includes the kettle of autoclave body (1) and sealing structure
It covers (2), the drying kettle is equipped with gas outlet (3) and air inlet (5), and autoclave body (1) is internally provided with supporter (12), for placing
Aerogel products；Drying kettle outer wall surface is provided with insulating layer (46), the internal layer of the insulating layer (46) be thermal insulation coatings, in
Interbed is glass silk flosssilk wadding, and outer layer is coated using high temperature resistant felt.
2. aeroge production drying kettle according to claim 1, it is characterised in that：The drying kettle is additionally provided with gas
Body supercharging device, the gas pressurized device include the gas boosting being connected with air inlet (5) by pipeline pump (18) and
Gas reservoir (7) is additionally provided with second pressure gauge (34) on pipeline.
3. aeroge production drying kettle according to claim 1, it is characterised in that：The upper-end part of driving of autoclave body (1) is arranged
It includes being connected with inside autoclave body including safety valve (10) and first pressure gauge to have safe unit, the safe unit
(11)。
4. according to claims 1 to 3 it is one of arbitrary described in aeroge production drying kettle, it is characterised in that：The autoclave body
(1) it is sandwich, equipped with oil inlet pipe (13), oil inlet pipe (13) passes through autoclave body (1) internal for autoclave body (1) lower end, and is pressed from both sides with autoclave body
Layer is connected, and autoclave body (1) sidewall upper is equipped with interlayer oil outlet (16), and interlayer oil outlet (16) is connected with interlayer.
5. aeroge production drying kettle according to claim 4, it is characterised in that：Oil inlet pipe (13) is disk-like structure,
It is internal that coil pipe is distributed in autoclave body (1).
6. aeroge production drying kettle according to claim 4, it is characterised in that：Oil inlet pipe outlet (15) passes through autoclave body
(1) external pipeline is connected with the interlayer oil inlet (17) of autoclave body (1).
7. aeroge production drying kettle according to claim 4, it is characterised in that：It is set inside autoclave body (1) interlayer (45)
There are the baffle plate (39) for increasing heat-conducting area, the baffle plate (39) to be distributed at spiral line type inside the interlayer of autoclave body (1).
8. aeroge production drying kettle according to claim 1, it is characterised in that：The bottom of autoclave body (1) is provided with row
Dirty mouth (6).
9. aeroge production drying kettle according to claim 1, it is characterised in that：The drying kettle is vertical knot
Structure, autoclave body (1) and kettle cover (2) use clamping hoop type hydraulic pressure quick-opening structure.
10. aeroge production drying kettle according to claim 1, it is characterised in that：Gas outlet (3) setting exists
Autoclave body (1) side wall is arranged in autoclave body (1) bottom, vacuum unit (9) in kettle cover (2) close to upper end position, air inlet (5) setting
Top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721662202.8U CN207745850U (en) | 2017-12-04 | 2017-12-04 | A kind of aeroge production drying kettle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721662202.8U CN207745850U (en) | 2017-12-04 | 2017-12-04 | A kind of aeroge production drying kettle |
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| Publication Number | Publication Date |
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| CN207745850U true CN207745850U (en) | 2018-08-21 |
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ID=63148626
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553474A (en) * | 2019-07-29 | 2019-12-10 | 爱彼爱和新材料有限公司 | Horizontal supercritical drying device and horizontal supercritical reaction system |
-
2017
- 2017-12-04 CN CN201721662202.8U patent/CN207745850U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553474A (en) * | 2019-07-29 | 2019-12-10 | 爱彼爱和新材料有限公司 | Horizontal supercritical drying device and horizontal supercritical reaction system |
| CN110553474B (en) * | 2019-07-29 | 2020-10-20 | 爱彼爱和新材料有限公司 | Horizontal supercritical drying device and horizontal supercritical reaction system |
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