CN107664308A - A kind of simple vacuum microwave oven apparatus - Google Patents

A kind of simple vacuum microwave oven apparatus Download PDF

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Publication number
CN107664308A
CN107664308A CN201610612226.6A CN201610612226A CN107664308A CN 107664308 A CN107664308 A CN 107664308A CN 201610612226 A CN201610612226 A CN 201610612226A CN 107664308 A CN107664308 A CN 107664308A
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CN
China
Prior art keywords
microwave
burner hearth
vacuum
fire door
temperature
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Pending
Application number
CN201610612226.6A
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Chinese (zh)
Inventor
朱和国
孙云飞
周瑜
张逸卿
楼淼森
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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Publication date
Application filed by Nanjing University of Science and Technology filed Critical Nanjing University of Science and Technology
Priority to CN201610612226.6A priority Critical patent/CN107664308A/en
Publication of CN107664308A publication Critical patent/CN107664308A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/02Stoves or ranges heated by electric energy using microwaves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/08Arrangement or mounting of control or safety devices
    • F24C7/081Arrangement or mounting of control or safety devices on stoves

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Abstract

The present invention is a kind of simple vacuum microwave reaction furnace apparatus, the device includes furnace shell, fire door, burner hearth in furnace shell casing, and by setting the attemperator in burner hearth, it is arranged on roof of the furnace and through the microwave generating apparatus of burner hearth, it is arranged on the infrared probe that fire box temperature is measured on fire door, vacuum atmosphere system, temperature control modules, microwave control module and realize vacuum microwave reacting furnace stepless changing microwave power for sealing the sealing device of burner hearth and fire door, with infrared accurate measurement and record the variation relation of microwave action time under the temperature in sample and different microwave, and the temperature changing process in measure sample;When the weak sample of wave-sucking performance can use double thermal source Hybrid Heatings, reach design temperature.The simple vacuum microwave oven apparatus is simple in construction, cost is low and suitable common teaching experiment easy to use and in general scientific research.

Description

A kind of simple vacuum microwave oven apparatus
Technical field
The invention belongs to vacuum microwave field, and in particular to it is a kind of can step-less adjustment microwave irradiation power simple vacuum Microwave oven apparatus.
Background technology
Traditional heating is carried out by convection current, radiation and conduction, and heated sample has high outside and low outside temperature field, and tradition adds The vacuum drying oven of hot mode is widely used to powder sintering, chemical synthesis, Surface heat-treatent etc., specific to exist with such as H.G.Zhu Utilization traditional heating vacuum drying oven disclosed in Materials Science and Engineering A 478 (2008) 87-92 Exothermic dispersion synthesis prepares (Al2O3+TiB2)/Al composites.
Microwave in microwave oven apparatus uses wavelength to have globality, selection in 1cm~1m electromagnetic wave, microwave heating Property, while the features such as save, be time saving, be efficient and environment-friendly, it is outer high to be heated heat in the temperature field of sample, is produced with traditional heating Raw temperature field is opposite.When forming Hybrid Heating field, then the internal and external temperature field of sample can be made to tend to uniform, so as to substantially reduce Thermal stress in sample, it is also widely used for drying, the wood of chemical reactive synthesis, the sintering of inorganic material, food and tealeaves Drying of material etc..As Roberto Rosa et al. Chemical Engineering and Processing 71 (2013) 2- On 18 the characteristics of the synthesis of comprehensive review microwave and its application.And Heguo Zhu et al. are in Materials Research Disclosed microwave heating vacuum furnace reaction has synthesized aluminium base on Bulletin and Materials Chemistry and Physics Composite (Al2O3+Al3Zr)/Al and (Al2O3+Al3Ni)/Al.Current existing vacuum microwave is expensive, such as Beijing The made vacuum microwave of Na Yuan microwaves Co., Ltd, volume is big, and thermometric is contactless using thermocouple and sample, surveys Warm accuracy is not high enough, while to stretch into burner hearth longer for its thermocouple, operation inconvenience, particularly installs sample inconvenience, microwave action Process can not be observed.In addition, the complicated and price such as the vacuum microwave of Hunan Thersun Heat Energy Science and Technology Co., Ltd. is held high It is expensive, it is not suitable for common teaching experiment and general scientific research use etc..
The content of the invention
It is an object of the invention to provide it is a kind of it is simple in construction, cost is cheap, thermometric is convenient, controls simple and direct vacuum microwave React furnace apparatus.
The solution for realizing the technology of the present invention is:A kind of simple vacuum microwave reaction furnace apparatus, the device include:
Furnace shell, fire door, the burner hearth in furnace shell casing and
The attemperator being arranged in burner hearth, described attemperator are that outer layer is Al2O3Foam, inner wall surface are arranged to Single heat source, or inner wall surface are arranged to scribble double thermals source of SiC sinter layers;
It is arranged on roof of the furnace and through the microwave generating apparatus of burner hearth;The microwave generating apparatus is magnetron;
It is arranged on the infrared probe that fire box temperature is measured on fire door;
For extracting burner hearth air and being passed through the vacuum atmosphere system of gas, including the vavuum pump, true being arranged on casing Empty magnetic valve, atmosphere magnetic valve and vacuum meter;
For controlling the control device of fire box temperature and microwave power and time, including it is arranged on the temperature control on burner hearth top Molding block and microwave control module;
For sealing the sealing device of burner hearth and fire door, described sealing device is the flange silicon for being connected to quartz ampoule both ends Glue sealing ring and casing silica gel sealing ring, the anti-microwave circle of wire, fire door silica gel sealing ring are disposed with fire door.
Preferably, the burner hearth is the quartz glass tube that thickness is more than 6mm;
Further, the disengaging cooling water pipe for realizing the circulation of nature water cooling is set on magnetron.
Further, the anti-microwave circle of wire be metallic copper filament winding into diameter of section be that fire door silica gel sealing ring cross-section is straight The 0.9-0.95 in footpath;
Preferably, infrared probe is MZHS10LTH (0~1300 DEG C of temperature-measuring range) infrared temperature measurement apparatus.
Preferably, microwave power control module is MODEL:DOP-B07S411.
Atmosphere magnetic valve, vacuum solenoid in vacuum atmosphere system use magnetic valve (WITOL 2M463K).
The deflation of atmosphere solenoid valve control vacuum system is passed through atmosphere gas, vacuum solenoid control vavuum pump and vacuum Break-make between cavity.The junction of vacuum atmosphere system and casing passes through sealant sealing.
In simple vacuum microwave reaction furnace apparatus provided by the present invention, ring flange is provided between casing and fire door, and Ring flange is fixed on casing by connecting bolt.
Further, fire door is provided with the fire door pivot button and device for locking door for the opening and closing for realizing door.
Sample is under microwave action in simple vacuum microwave reaction furnace apparatus furnace shell side wall is additionally provided with and directly observes burner hearth The monitor window of the situation of change occurred, Judas-hole are provided with monitor window, the besel is provided for the locking dress of switch Put and door knob;Touch-screen, indicator lamp and master switch are additionally provided with side wall.
Compared with prior art, its remarkable advantage is the present invention:1st, the simple vacuum microwave oven apparatus structure in the present invention Simply, cost is low, easy to use is adapted to common teaching experiment and in general scientific research;2nd, the device is by setting magnetron Energy stepless changing microwave output power, controls different heating rates;3rd, the device, which can be realized, measures and records sample medium temperature Degree, and obtain the variation relation between specimen temperature and microwave action time;4th, the device is by changing the knot of attemperator Structure is realized to provide and worked under device different heat sources.
Brief description of the drawings
Fig. 1 is the appearance schematic diagram of simple vacuum microwave oven apparatus of the present invention.
Fig. 2 is the structural representation of simple vacuum microwave oven apparatus of the present invention.
Fig. 3 is the fire door schematic diagram of simple vacuum microwave oven apparatus of the present invention.
Fig. 4 is the schematic diagram of double thermal source burner hearths in simple vacuum microwave oven apparatus of the present invention
1- vavuum pumps;2- vacuum solenoids;3- atmosphere magnetic valves;4- vacuum meters;5- touch-screens;6- indicator lamps;7- is always opened Close;8- door knobs;9- besels;10- infrared probes;11- furnace shells;12- Judas-hole;13- locking devices;14- casings;15- is passed in and out Cooling water pipe;16- magnetrons;17- wires;18- microwave control modules;19- temperature control modules;20- ring flanges;21- connections Bolt;The anti-microwave circle of 22- wires;23- fire door silica gel sealing rings;24- fire doors;25- flange silica gel sealing rings;26- quartz glass Glass pipe;27- sample bench;28- refractory brick;29- samples;30-Al2O3Foam;31- casing silica gel sealing rings;32- fluid sealants;33- Fire door pivot button;34- device for locking door;35-SiC sinter layers.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of simple vacuum microwave oven apparatus, the device include furnace shell 11, fire door 24, the burner hearth in furnace shell casing 14 and
As shown in figure Fig. 1,2, the concrete structure of this simple vacuum microwave oven apparatus is as follows:
Burner hearth is arranged to the quartz glass tube that thickness is more than 6mm in the present invention;The device is additionally provided with:
For extracting burner hearth air and being passed through the vacuum atmosphere system of gas, including be arranged on casing 14 vavuum pump 1, Vacuum solenoid 2, atmosphere magnetic valve 3 and vacuum meter 4;Vacuum solenoid 2 is driven in doubles, closes atmosphere magnetic valve 3, starts vavuum pump 1 i.e. vacuum-pumping, makes burner hearth be in vacuum state;If setting gas under vacuum conditions, can be passed through by atmosphere magnetic valve 3 Atmosphere.
Sealing device provided with sealing burner hearth and fire door 24, described sealing device is the flange silicon for being connected to burner hearth both ends Glue sealing ring 25 and casing silica gel sealing ring 31, the anti-microwave circle 22 of wire, fire door silica gel sealing are disposed with fire door 24 Circle 23.
Quartz glass tube both ends pass through flange silica gel sealing ring 25 and casing silica gel sealing ring 31 and flange and casing respectively Sealing, fire door are connected by the anti-microwave circle 22 of wire and fire door silica gel sealing ring 23 with flange, wherein the anti-microwave circle 22 of wire For anti-microwave leakage, fire door silica gel sealing ring 23 is used to seal;Wherein, the anti-microwave circle of wire be metallic copper filament winding into cut The 0.9-0.95 of a diameter of fire door silica gel sealing ring diameter of section in face;
It is arranged on the infrared probe 10 that fire box temperature is measured on fire door 24;Pass through the collecting temperature signal of infrared probe 10, warp Data conversion, processing, output, show and record temperature data.The infrared probe used in the present invention is MZHS10LTH.
The attemperator being arranged at such as Fig. 4 in burner hearth, described attemperator are that outer layer is Al2O3Foam 30, inner wall surface Single heat source is arranged to, or inner wall surface is arranged to scribble double thermals source of SiC sinter layers 35.Attemperator is arranged on quartz glass tube Refractory brick 28, and Al2O3Foam 30 is provided with aperture close to the side of fire door 24 and alignd with the infrared probe 10 at fire door center.Should By adjusting sample stage 27 come the height of adjusting sample 29 in attemperator, it is ensured that the alignment probe sample of infrared measurement of temperature.
It is arranged on roof of the furnace and through the microwave generating apparatus of burner hearth;The microwave generating apparatus is magnetron 16;
For controlling the control device of fire box temperature and microwave power and time, including it is arranged on the temperature control on burner hearth top Molding block 19 and microwave control module 18;Regulation microwave control module 18 realizes microwave power 0~1500W stepless changings, and this is micro- Wave power control module is MODEL:DOP-B07S411, and the directly selected required microwave power on touch-screen 5.Magnetron is sent out The power for going out microwave depends on the height of anode voltage and the size in magnetic field, and magnetic field produces for permanent magnet, constant magnitude, therefore Microwave power size is mainly by adjusting the voltage of negative and positive interpolar.The voltage is mainly completed by the power circuit of setting.Electricity Source circuit is mainly made up of leakage inductance transformer, therefore adjusting current potential rheostat electrodeless can adjust voltage swing so as to realize to microwave work( Rate it is stepless regulated.
As shown in Fig. 2 the disengaging cooling water pipe 15 for realizing the circulation of nature water cooling is set on magnetron 16.
Make in addition, being additionally provided with sample in directly observation burner hearth in simple vacuum microwave reaction furnace apparatus furnace shell side wall in microwave With the monitor window 9 of lower situation of change occurred, Judas-hole 12 are provided with monitor window 9, the besel 9 is provided for switching Locking device 13 and door knob 8;Touch-screen 5, indicator lamp 6 and master switch 7 are additionally provided with side wall.
Microwave power and temperature data are simultaneously in display and touch-screen 5, and exported with USB.
The operation of the device and job step are as follows:
1. checking micro-wave oven, turn on the power, insert USB flash disk.
2. point touching screen 5 enters button, into operation interface.
3. clicking on magnetron 16 preheats button, now microwave launcher tube is in preheating SBR, opens magnetron 16 Natural water circulation cooling system.
4. heat source way is selected, totally 2 kinds.1) double thermals source:Inwall has the attemperator of SiC coatings;2) single heat source:Inwall without The attemperator of SiC coatings.Sample is inserted into attemperator, is put into burner hearth, and makes the registration coupon of infrared probe 10, closes fire door 24。
5. microwave action environment is selected, totally 3 kinds.1) pure microwave:Vacuum solenoid 2 is now opened, closes atmosphere magnetic valve 3, vacuumize, burner hearth is in vacuum state;2) atmospheric environment:Vacuum solenoid 2 and atmosphere magnetic valve 3 are opened, leads to burner hearth Air;3) particular atmosphere:After system vacuum, connection atmosphere magnetic valve 3 communicates with particular atmosphere source, by vacuum meter 4 control into Enter amount, during to set point value, close atmosphere magnetic valve 3, furnace system is in chosen atmosphere.
5. the microwave timing on point touching screen 5, microwave power and temperature setting frame, set respectively microwave heating time, Microwave action power, microwave heating temperature and microwave heating thermal-insulation time etc..
6. after microwave environment, mode of heating are selected, you can locking fire door, open microwave switch, microwave power rises automatically Microwave action is carried out to microwave power set value, now the temperature of the power of microwave action and specimen surface, data record is simultaneously bent Line is shown on screen.
7. will turn off microwave after measurement temperature is more than setting value, when measurement temperature is less than setting value, microwave is automatic Recover.
8. if vacuum state or certain atmosphere state click on air escape cock after the completion of microwave action, air enters stove Thorax, the taking-up sample of fire door 24 is opened after pressure balance.If atmospheric condition, device for locking door 34 can be directly opened, is opened Fire door samples.
9. it is final, cooling system is closed, closes power supply, takes out USB flash disk.

Claims (10)

1. a kind of simple vacuum microwave reaction furnace apparatus, the device includes the burner hearth in furnace shell, fire door, furnace shell casing, its feature It is, the device also includes:
The attemperator being arranged in burner hearth, described attemperator are that outer layer is Al2O3Foam, inner wall surface are arranged to single heat Source, or inner wall surface are arranged to scribble double thermals source of SiC sinter layers;
It is arranged on roof of the furnace and through the microwave generating apparatus of burner hearth;The microwave generating apparatus is magnetron;
It is arranged on the infrared probe that fire box temperature is measured on fire door;
For extracting burner hearth air and being passed through the vacuum atmosphere system of gas, including vavuum pump, the vacuum electric being arranged on casing Magnet valve, atmosphere magnetic valve and vacuum meter;
For controlling the control device of fire box temperature and microwave power and time, including it is arranged on the temperature control mould on burner hearth top Block and microwave control module;
For sealing the sealing device of burner hearth and fire door, described sealing device be connected to quartz ampoule both ends flange silica gel it is close Seal and casing silica gel sealing ring, the anti-microwave circle of wire, fire door silica gel sealing ring are disposed with fire door.
2. simple vacuum microwave reaction furnace apparatus according to claim 1, it is characterised in that described burner hearth is that thickness is big In 6mm quartz glass tube.
3. simple vacuum microwave reaction furnace apparatus according to claim 1, it is characterised in that the anti-microwave of described wire Enclose for metallic copper filament winding into diameter of section be fire door silica gel sealing ring diameter of section 0.9-0.95.
4. simple vacuum microwave reaction furnace apparatus according to claim 1, it is characterised in that set on described magnetron Realize the disengaging cooling water pipe of nature water cooling circulation.
5. simple vacuum microwave reaction furnace apparatus according to claim 1, it is characterised in that described infrared probe, be The MZHS10LTH infrared temperature measurement apparatus of 0~1300 DEG C of temperature-measuring range.
6. simple vacuum microwave reaction furnace apparatus according to claim 1, it is characterised in that described microwave power control Module is MODEL:DOP-B07S411.
7. simple vacuum microwave reaction furnace apparatus according to claim 1, it is characterised in that described vacuum atmosphere system In atmosphere magnetic valve, vacuum solenoid be WITOL 2M463K, the junction of vacuum atmosphere system and casing passes through fluid sealant Sealing.
8. the simple vacuum microwave reaction furnace apparatus according to claim 1-7 any one, it is characterised in that casing with Ring flange is provided between fire door, described ring flange is fixed on casing by connecting bolt.
9. the simple vacuum microwave reaction furnace apparatus according to claim 1-7 any one, it is characterised in that described stove Door is provided with the fire door pivot button and device for locking door for the opening and closing for realizing door.
10. the simple vacuum microwave reaction furnace apparatus according to claim 1-7 any one, it is characterised in that furnace shell side Wall is provided with the monitor window of the situation of change that sample is occurred under microwave action in directly observation burner hearth, and is opened on monitor window There are Judas-hole, described besel is provided for the locking device and door knob of switch;Touch-screen, instruction are additionally provided with furnace shell side wall Lamp and master switch.
CN201610612226.6A 2016-07-28 2016-07-28 A kind of simple vacuum microwave oven apparatus Pending CN107664308A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108870922A (en) * 2018-09-07 2018-11-23 芜湖众梦电子科技有限公司 A kind of multi-functional automatic vacuum oven for lithium battery
CN110160330A (en) * 2018-02-12 2019-08-23 中冶长天国际工程有限责任公司 A kind of sintering fuel microwave drying system
CN114234641A (en) * 2021-12-15 2022-03-25 天津德科电子技术开发有限公司 Portable vacuum porcelain oven

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CN104596235A (en) * 2014-12-23 2015-05-06 国家纳米技术与工程研究院 Combined type microwave sintering furnace
CN204602138U (en) * 2015-03-02 2015-09-02 南京理工大学 A kind of heating using microwave vacuum reaction device
CN105091604A (en) * 2015-08-24 2015-11-25 南京理工大学 Thermal insulation and auxiliary heating device for microwave sintering of ceramic cutter material
CN105627760A (en) * 2016-02-03 2016-06-01 南京信息工程大学 Microwave storing device for high-temperature sintering
CN205939290U (en) * 2016-07-28 2017-02-08 南京理工大学 Simple and easy vacuum microwave stove device

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Publication number Priority date Publication date Assignee Title
CN2885891Y (en) * 2006-02-09 2007-04-04 姚荣华 Temperature control furnace for growth of arsenide gallium monocrystal
CN101664806A (en) * 2008-10-24 2010-03-10 南京理工大学 Microwave reaction synthesis method for endogenous metal matrix composite material
CN102353261A (en) * 2011-09-05 2012-02-15 湖南省中晟热能科技有限公司 Microwave multifunctional high-temperature experimental furnace
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110160330A (en) * 2018-02-12 2019-08-23 中冶长天国际工程有限责任公司 A kind of sintering fuel microwave drying system
CN110160330B (en) * 2018-02-12 2020-08-28 中冶长天国际工程有限责任公司 Sintering fuel microwave drying system
CN108870922A (en) * 2018-09-07 2018-11-23 芜湖众梦电子科技有限公司 A kind of multi-functional automatic vacuum oven for lithium battery
CN114234641A (en) * 2021-12-15 2022-03-25 天津德科电子技术开发有限公司 Portable vacuum porcelain oven

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