CN202947942U - Microwave heating weight detection device - Google Patents
Microwave heating weight detection device Download PDFInfo
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- CN202947942U CN202947942U CN 201220647374 CN201220647374U CN202947942U CN 202947942 U CN202947942 U CN 202947942U CN 201220647374 CN201220647374 CN 201220647374 CN 201220647374 U CN201220647374 U CN 201220647374U CN 202947942 U CN202947942 U CN 202947942U
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- inner cavity
- microwave heating
- gas
- heating weight
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Abstract
The utility model discloses a microwave heating weight detection device. The microwave heating weight detection device comprises a gas processing device, a microwave inner cavity casing, a ceramic plate placed in the microwave inner cavity and used for placing a quartz bottle, and a support plate arranged on the outer bottom of the microwave inner cavity casing, wherein one end of a quartz rod is arranged on the support plate through a fixing clamp, and the other end extends into the microwave inner cavity through a quartz rod insert hole on the bottom of the microwave inner cavity casing to support the ceramic plate; the gas processing device includes a gas processor and an air blower; one end of the gas processor is communicated with a gas outlet of the microwave inner cavity casing through a gas duct, and the other end is communicated with the air blower through a pipe; and the pressure sensor extends into the microwave inner cavity through a pressure sensor insert hole. The microwave heating weight detection device provided by the utility model can effectively stabilize pressure in the inner cavity during microwave heating, and can regulate the inner cavity pressure to a set pressure value, so that the device can detect the online change of weight during microwave heating and thermal decomposition process. In addition, the device has low cost and high practicability, and meets the requirement of environmental protection.
Description
Technical field
The present invention relates to Weight detecting device, relate in particular to a kind of microwave heating Weight detecting device.
Background technology
Microwave is the electromagnetic wave of wavelength very short (wavelength coverage is generally 0.1mm to 1m), and its frequency is 300MHz ~ 300GHz, and the frequency that country's allowance microwave heating equipment uses is 915MHz and 2450MHz.
Dielectric structure by molecule is classified, and molecule can be divided into polar molecule and non-polar molecule.polar molecule can be under the effect of electromagnetic field, become the neat state identical with the electromagnetic field direction by distribution at random, and the direction of microwave electromagnetic field is changing, so polar molecule will constantly change back and forth along with the change of electromagnetic field direction vibration, molecule will produce violent motion, then polar molecule mutually frictional impact produce amount of heat, these heats can add thermal material and make temperature of charge increase, be again the change number of times of microwave electromagnetic field direction due to the frequency of microwave, and the frequency of microwave is up to 915MHz and 2450MHz, therefore microwave energy can change the heat energy of material moment into, and heat is very huge.
Compare with conventional heating, microwave heating because of have 1. heat instantaneity, 2. heating uniformity, 3. heating and energy saving, 4. add heat selective, 5. heat the controlled advantage such as good, and obtained the favor of a lot of researchists and enterprise, and think that microwave heating will have larger development prospect at the biomass energy conversion aspect.Yet, recent years is during for materials such as microwave heating living beings, researchist and corporate boss will study the temperature changing regularity of its microwave heating, and the unsettled problem of weight detecting appears when research microwave heating weight change, this is mainly because when material is carried out microwave heating, separate out a large amount of volatile matters, droplet-like bio-oil and heat, this makes the pressure of microwave inner chamber occur sharply to change, and delicate detects and need to carry out under normal pressure.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of prior art, a kind of microwave heating Weight detecting device is provided, the pressure of inner chamber when stability microwave heats effectively, and can regulate chamber pressure and make it become the force value that sets, thereby can detect the online variation of weight in microwave heating and pyrolytic process, and this apparatus cost is low, practical, and meets environmental requirement.
The present invention is achieved through the following technical solutions:
A kind of microwave heating Weight detecting device, comprise gas treatment equipment, microwave inner cavity, be arranged on the microwave inner chamber ceramic wafer that be used for to place quartzy bottle, be arranged on the back up pad of microwave inner cavity outer bottom; One end of quartz pushrod is arranged on back up pad by geometrical clamp, and the quartz pushrod jack that the other end passes bottom the microwave inner cavity stretches into the microwave inner chamber, is used for supporting ceramic wafer; Gas treatment equipment comprises gas processer, blower fan, and an end of gas processer is communicated with by the gas vent of wireway with the microwave inner cavity, and the other end of described gas processer is communicated with blower fan by pipeline; Pressure transducer stretches into the microwave inner chamber by the pressure transducer jack.Back up pad is placed on electronic balance.Quartz pushrod has 3, distribution triangular in shape.
Do not contact between the internal face of the outside surface of quartz pushrod and quartz pushrod jack.Blower fan also connects the microwave control system, and this microwave control system comprises a PID regulator.
Be provided with thermopair at the microwave inner chamber, this thermopair stretches into the microwave inner chamber by thermocouple jack.
The end of pressure transducer is apart from ceramic wafer upper surface 0.01m～0.1m, apart from quartzy bottle side 0.01m～0.1m.
The microwave inner cavity also is provided with a gas access, infrared thermometer jack; Be provided with infrared thermometer on the infrared thermometer jack.
The present invention has the following advantages compared with prior art:
Described gas treatment equipment comprises gas processer, blower fan, and an end of gas processer is communicated with by the gas vent of wireway with the microwave inner cavity, and the other end of gas processer is communicated with blower fan by pipeline, and blower fan also connects the PID regulator.Measure the pressure of microwave inner chamber by pressure transducer, and utilize the PID regulator to regulate power of fan, change the gas flow of suction microwave inner chamber, and then the pressure of inner chamber during the stability microwave heating effectively.
Be arranged on the microwave inner chamber ceramic wafer that be used for to place quartzy bottle, be arranged on the back up pad of microwave inner cavity outer bottom; One end of quartz pushrod is arranged on back up pad by geometrical clamp, and the quartz pushrod jack that the other end passes microwave inner cavity bottom stretches into the microwave inner chamber, is used for supporting ceramic wafer, does not contact between the internal face of the outside surface of quartz pushrod and quartz pushrod jack; Under the environment of pressure stability, can detect online exactly the situation of change of weight;
This device price is low, practical, technological means is simple and easy to do, and meets environmental requirement, can be used in widely the online detection of weight change in microwave heating and pyrolytic process, has a extensive future.
Description of drawings
Fig. 1 is the structural representation of microwave heating Weight detecting device of the present invention.
Fig. 2 is A-A cut-open view in Fig. 1.
Embodiment
Below in conjunction with specific embodiment, the present invention is done further concrete detailed description the in detail.
Embodiment
As shown in Figure 1 and Figure 2, microwave heating Weight detecting device of the present invention, comprise gas treatment equipment, microwave inner cavity 11, be arranged on microwave inner chamber 10 ceramic wafer 20 that be used for to place quartzy bottle 22, be arranged on the back up pad 14 of microwave inner cavity 11 outer bottoms; One end of quartz pushrod 17 is arranged on back up pad 14 by geometrical clamp 12, and the quartz pushrod jack 15 that the other end passes microwave inner cavity 11 bottoms stretches into microwave inner chamber 10, is used for supporting ceramic wafer 20; Described gas treatment equipment comprises gas processer 8, blower fan 9, and an end of gas processer 8 is communicated with the gas vent 4 of microwave inner cavity 11 by wireway 5, and the other end of described gas processer 8 is communicated with blower fan 9 by pipeline; Pressure transducer 7 stretches into microwave inner chamber 10 by pressure transducer jack 6.
Do not contact between the internal face of the outside surface of quartz pushrod 17 and quartz pushrod jack 15.Described blower fan also connects microwave control system (not shown), and this microwave control system comprises a PID regulator.
Back up pad 14 is placed on electronic balance 13.Electronic balance 13 also is connected with the microwave control system, act as to carry out the real-time online record and show.
In quartzy bottle 22, material 21 is housed.Be provided with thermopair 3 at microwave inner chamber 10, this thermopair 3 stretches into microwave inner chamber 10 by thermocouple jack 2.The probe of thermopair 3 inserts in material 21, and the present position be the center of quartzy bottle 22 xsects, material 21 thickness half positions, and measured temperature value carries out real-time online record and demonstration by the microwave control system.
Be provided with thermopair 3 in microwave inner cavity 11, this thermopair 3 stretches in microwave inner cavity 11 by thermocouple jack 2.
The end of pressure transducer 7 is apart from ceramic wafer 20 upper surface 0.01m～0.1m, apart from quartzy bottle 22 side 0.01m～0.1m.Pressure transducer 7 is connected with blower fan 9 by the microwave control system again.Measure the pressure signal of microwave inner chamber by pressure transducer 7, and be sent to the PID regulator, and compare with setup pressure value, then regulate the power of blower fan 9 according to the result of comparison, make it carry out intake-gas to the microwave inner chamber, until the microwave chamber pressure equates with setup pressure value; The required force value of setup pressure value for inputting on the microwave control system.
Microwave inner cavity 11 also is provided with a gas access 1, infrared thermometer jack 19; Be provided with infrared thermometer 18 on infrared thermometer jack 19.The probe of infrared thermometer 18 is over against the middle part of material 21, and measured temperature value carries out the real-time online record and shows by the microwave control system, and can compare, check with thermopair measured temperature value.
The working gas of this microwave heating Weight detecting device is entered by gas access 1, is discharged by gas vent 4 under the swabbing action of blower fan 9, enters through wireway 5 processing and the purification that gas processer 8 carries out gas, at last by blower fan 9 places discharge.
when carrying out the microwave heating weight detecting, at the required microwave chamber pressure of microwave control system place's input, pass into working gas, the pressure of 7 pairs of microwave inner chambers 10 of pressure transducer measure in real time and with set force value and compare, then regulate the power of blower fan 9, allow the gas of 9 pairs of microwave inner chambers 10 of blower fan aspirate, make the pressure stability of microwave inner chamber 10 in the force value that sets, through after 20min ~ 30min, opening microwave button (not shown) heats material 21, thermopair 3 carries out on-line measurement and record with the temperature of 18 pairs of materials 21 of infrared thermometer, electronic balance 13 is started working simultaneously, the online detection and the weight that records material, until microwave heating process finishes.
Just can realize preferably the present invention as mentioned above.
Embodiments of the present invention are not restricted to the described embodiments; other are any does not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitute, combination, simplify; all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (7)
1. a microwave heating Weight detecting device, is characterized in that, comprise gas treatment equipment, microwave inner cavity, be arranged on the microwave inner chamber ceramic wafer that be used for to place quartzy bottle, be arranged on the back up pad of microwave inner cavity outer bottom; One end of quartz pushrod is arranged on back up pad by geometrical clamp, and the quartz pushrod jack that the other end passes bottom the microwave inner cavity stretches into the microwave inner chamber, is used for supporting ceramic wafer; Described gas treatment equipment comprises gas processer, blower fan, and an end of gas processer is communicated with by the gas vent of wireway with the microwave inner cavity, and the other end of described gas processer is communicated with blower fan by pipeline; Pressure transducer stretches into the microwave inner chamber by the pressure transducer jack.
2. microwave heating Weight detecting device according to claim 1, is characterized in that, do not contact between the internal face of the outside surface of quartz pushrod and quartz pushrod jack; Blower fan also connects the microwave control system, and this microwave control system comprises a PID regulator.
3. microwave heating Weight detecting device according to claim 1, is characterized in that, back up pad is placed on electronic balance.
4. microwave heating Weight detecting device according to claim 1, is characterized in that, is provided with thermopair at the microwave inner chamber, and this thermopair stretches into the microwave inner chamber by thermocouple jack.
5. microwave heating Weight detecting device according to claim 1, is characterized in that, the end of pressure transducer is apart from ceramic wafer upper surface 0.01m～0.1m, apart from quartzy bottle side 0.01m～0.1m.
6. microwave heating Weight detecting device according to claim 1, is characterized in that, quartz pushrod has 3, distribution triangular in shape.
7. microwave heating Weight detecting device according to claim 1, is characterized in that, the microwave inner cavity also is provided with a gas access, infrared thermometer jack; Be provided with infrared thermometer on the infrared thermometer jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647374 CN202947942U (en) | 2012-11-29 | 2012-11-29 | Microwave heating weight detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647374 CN202947942U (en) | 2012-11-29 | 2012-11-29 | Microwave heating weight detection device |
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|---|---|
| CN202947942U true CN202947942U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220647374 Expired - Fee Related CN202947942U (en) | 2012-11-29 | 2012-11-29 | Microwave heating weight detection device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980833A (en) * | 2012-11-29 | 2013-03-20 | 华南理工大学 | Microwave heating weight detection device |
| CN103969151A (en) * | 2014-05-29 | 2014-08-06 | 广州标际包装设备有限公司 | Evaporation residue tester |
| CN104502535A (en) * | 2014-12-18 | 2015-04-08 | 东南大学 | Micro device and modeling method for studying gas-solid intrinsic chemical reaction kinetics |
| CN104777069A (en) * | 2015-03-17 | 2015-07-15 | 浙江理工大学 | Powdery substance processing device |
| CN104819909A (en) * | 2015-03-17 | 2015-08-05 | 浙江理工大学 | Equipment for metering medicinal powder heating mass loss rate |
| CN105116115A (en) * | 2015-09-23 | 2015-12-02 | 立场电子科技发展（上海）有限公司 | Tobacco tar guiding quantity testing equipment for tobacco tar guiding wick |
| CN106525640A (en) * | 2015-09-11 | 2017-03-22 | Cem有限公司 | Moisture and volatiles analyzer |
-
2012
- 2012-11-29 CN CN 201220647374 patent/CN202947942U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980833A (en) * | 2012-11-29 | 2013-03-20 | 华南理工大学 | Microwave heating weight detection device |
| CN102980833B (en) * | 2012-11-29 | 2015-06-03 | 华南理工大学 | Microwave heating weight detection device |
| CN103969151A (en) * | 2014-05-29 | 2014-08-06 | 广州标际包装设备有限公司 | Evaporation residue tester |
| CN104502535A (en) * | 2014-12-18 | 2015-04-08 | 东南大学 | Micro device and modeling method for studying gas-solid intrinsic chemical reaction kinetics |
| CN104502535B (en) * | 2014-12-18 | 2016-03-02 | 东南大学 | For studying micro device and the modeling method of gas-solid intrinsic Chemical Kinetics |
| CN104777069A (en) * | 2015-03-17 | 2015-07-15 | 浙江理工大学 | Powdery substance processing device |
| CN104819909A (en) * | 2015-03-17 | 2015-08-05 | 浙江理工大学 | Equipment for metering medicinal powder heating mass loss rate |
| CN106525640A (en) * | 2015-09-11 | 2017-03-22 | Cem有限公司 | Moisture and volatiles analyzer |
| US10527533B2 (en) | 2015-09-11 | 2020-01-07 | Cem Corporation | Moisture and volatiles analyzer |
| CN105116115A (en) * | 2015-09-23 | 2015-12-02 | 立场电子科技发展（上海）有限公司 | Tobacco tar guiding quantity testing equipment for tobacco tar guiding wick |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20151129 |