CN109631566A - A kind of infrared radiation drying on-line monitoring device and drying means - Google Patents

A kind of infrared radiation drying on-line monitoring device and drying means Download PDF

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Publication number
CN109631566A
CN109631566A CN201910114191.7A CN201910114191A CN109631566A CN 109631566 A CN109631566 A CN 109631566A CN 201910114191 A CN201910114191 A CN 201910114191A CN 109631566 A CN109631566 A CN 109631566A
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CN
China
Prior art keywords
infrared radiation
drying
temperature
heating chamber
holding table
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910114191.7A
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Chinese (zh)
Inventor
裴永胜
陈政民
朱冠宇
李臻峰
庄为
李静
张君生
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Jiangnan University
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Jiangnan University
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Priority to CN201910114191.7A priority Critical patent/CN109631566A/en
Publication of CN109631566A publication Critical patent/CN109631566A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22Controlling the drying process in dependence on liquid content of solid materials or objects
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/02Dehydrating; Subsequent reconstitution
    • A23B7/028Thin layer-, drum- or roller-drying or by contact with a hot surface
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/28Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Combustion & Propulsion (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The present invention relates to a kind of infrared radiation drying on-line monitoring devices, including heating chamber, articles holding table is installed in the heating chamber, infrared radiation panel is installed at the top of the heating chamber above articles holding table, the bottom of articles holding table is mounted in bearing sensor by stepless elevating means for tables, and bearing sensor is fixed on the bottom of heating chamber;On-off control system is installed on heating cavity outer wall comprising the switch valve for connecting external power supply, the thermocouple connecting with infrared radiation panel, thermocouple are connect by being signally attached to data acquisition module with the computer of programmable control system;It is also connected with temperature sensor on data acquisition module, is connect with the material on articles holding table;Computer is electrically connected with the bearing sensor.The operating temperature of On-line Control infrared radiation panel of the present invention can efficiently dehydrate fruit and vegetable tablet and preferably keep fruits and vegetables initial quality and flavor.

Description

A kind of infrared radiation drying on-line monitoring device and drying means
Technical field
The present invention relates to infrared radiation drying technical field, especially a kind of infrared radiation drying on-line monitoring device and dry Drying method.
Background technique
Infra-red radiation refers to wavelength between visible light and microwave range, i.e., wave-length coverage is between 0.75~1000 μm of electromagnetism Wave radiation.Different from Hot-blast Heating mode, infra-red radiation transmits heat under conditions of not needing any medium with electromagnetic wave Amount, greatly reduces thermal loss, effectively raises irradiation efficiency.Acted on material when infrared, can induce atom and Electric field, vibration and the rotation of molecule, when infra-red radiation is incident on surface of material, a part can be gone out by surface reflection, another portion Divide and enters interior of articles.Interior heat, molecular motion aggravation, temperature of charge can be rapidly converted by the infra-red radiation that material absorbs It significantly improves.Compared with conventional convection does behaviour's method, infrared heating is dry to have selectivity and directionality, energy-efficient and high-quality The advantages that inexpensive.
But the infra red heating device generally used in current industry need to manually adjust infra-red radiation plate temperature, this side Method is complicated for operation, can not obtain the real-time change temperature of dried material, and excessive temperature easily causes dried material to be carbonized, and influences Drying quality, drying effect is undesirable, is unable to satisfy actual production demand.
Summary of the invention
The applicant provides a kind of infrared radiation drying on-line monitoring device for the disadvantage in above-mentioned existing production technology And drying means, to solve during traditional infrared radiation drying that temperature auto-control degree is low, is unable to monitor and controls Radiation temperature processed causes the ropy technical problem of dried material.
The technical solution adopted in the present invention is as follows:
A kind of infrared radiation drying on-line monitoring device, including heating chamber are equipped with articles holding table, glove in the heating chamber Infrared radiation panel is installed, the bottom of articles holding table is mounted on bearing sensor by stepless elevating means for tables at the top of the heating chamber above platform On, bearing sensor is fixed on the bottom of heating chamber;On-off control system is installed on heating cavity outer wall comprising connection external electrical The switch valve in source, the thermocouple connecting with infrared radiation panel, thermocouple and can be compiled by being signally attached to data acquisition module The computer of process control system connects;It is also connected with temperature sensor on data acquisition module, is connect with the material on articles holding table; Computer is electrically connected with the bearing sensor.
As a further improvement of the above technical scheme:
The data acquisition module includes temperature collecting module and Weight acquisition module, and data acquisition module passes through USB number It is connect according to line with computer, the temperature of data information control infrared radiation panel of the computer based on data collecting module collected.
Thermocouple uses K-type, N-type, E type or T-type model, and the temperature range for the infrared radiation panel that thermocouple can measure is 20℃-300℃。
The temperature sensor is that K-type or T-type High Accuracy Thermocouple Temperature, temperature-sensing element are connect with surface of material.
Pressure sensitive device is equipped in the bearing sensor, bearing sensor is connect with computer by USB line.
The articles holding table is square shape pallet or the continuous transfer band inside the heating chamber.
Multiple groups light compensating lamp is uniformly provided on heating chamber inner sidewall, the light compensating lamp uses heat-resisting LED light or halogen lamp;Heating Chamber has transparent windows on outer surface.
Stepless elevating means for tables includes retractable rod, and bottom end is fixed on the upper surface of bearing sensor by support, branch Seat uses stainless steel or aluminium;It is 10-40cm that retractable rod, which adjusts the distance between articles holding table and infrared radiation panel range,.
A kind of drying means of infrared radiation drying on-line monitoring device:
Step 1: preparing material, fresh fruit of vegetables is cleaned and is sliced, the fruit and vegetable tablet after preparation is laid on articles holding table, Form fruit and vegetable tablet thin layer;
Step 2: the temperature-sensing element of temperature sensor to be connected to the surface of fruit and vegetable tablet thin layer, adjust infrared radiation panel and The distance of articles holding table, fruit and vegetable tablet thin layer are dried under the irradiation of infrared radiation panel, temperature and mass number in drying process According to by data acquisition module real-time Transmission into computer;
Step 3: computer will carry out on-line control to infra-red radiation plate temperature according to default drying condition, until fruits and vegetables Piece thin layer reaches preset drying condition;
Step 4: by the fruit and vegetable tablet thin layer handled well in third step be put into equipped with it is auxiliary heat and blower device baking oven in 2~ 4h, holding temperature take the steady temperature between 40~60 DEG C;
Cool down step 5: the fruit and vegetable tablet thin layer handled well in the 4th step is placed in room temperature environment.
Beneficial effects of the present invention are as follows:
Structure of the invention design is reasonable, easy to operate, and intelligence degree is high, and drying effect is good, solves current existing market The disadvantages of intermediate infrared radiation device intelligence degree is not high, and drying effect is bad, the effectively work of On-line Control infrared radiation panel Make temperature, efficiently fruit and vegetable tablet can be dehydrated and preferably keeps fruits and vegetables initial quality and flavor.The present invention Articles holding table is adjusted to the distance of infrared radiation panel by retractable rod, meets the radiation demand of variety classes product.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the flow chart of drying means of the embodiment of the present invention.
Wherein: 1, heating chamber;2, infrared radiation panel;3, articles holding table;4, retractable rod;5, support;6, bearing sensor; 7, light compensating lamp;8, material;9, on-off control system;10, thermocouple;11, switch valve;12, temperature sensor;13, data acquire Module;14, computer.
Specific embodiment
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in Figure 1, the infrared radiation drying on-line monitoring device of the present embodiment, including heating chamber 1, the interior peace of heating chamber 1 Equipped with articles holding table 3, infrared radiation panel 2 is installed at the top of the heating chamber 1 of 3 top of articles holding table, the bottom of articles holding table 3 passes through stepless lifting Device is mounted in bearing sensor 6, and bearing sensor 6 is fixed on the bottom of heating chamber 1;Switch is installed on 1 outer wall of heating chamber Control system 9 comprising the switch valve 11 for connecting external power supply, the thermocouple 10 connecting with infrared radiation panel 2, thermocouple 10 are logical It crosses and is signally attached to data acquisition module 13, connect with the computer 14 of programmable control system;On data acquisition module 13 It is also connected with temperature sensor 12, is connect with the material 8 on articles holding table 3;Computer 14 is electrically connected with bearing sensor 6.
Data acquisition module 13 includes temperature collecting module and Weight acquisition module, and data acquisition module 13 passes through USB number It is connect according to line with computer 14, computer 14 controls infrared radiation panel 2 based on the data information that data acquisition module 13 acquires Temperature.
Thermocouple 10 is using K-type, N-type, E type or T-type model, the temperature for the infrared radiation panel 2 that thermocouple 10 can measure Range is 20 DEG C -300 DEG C.
Temperature sensor 12 is K-type or T-type High Accuracy Thermocouple Temperature, and temperature-sensing element is connect with 8 surface of material.
Pressure sensitive device is equipped in bearing sensor 6, bearing sensor 6 is connect with computer 14 by USB line.
Articles holding table 3 is square shape pallet or the continuous transfer band inside heating chamber 1.
Multiple groups light compensating lamp 7 is uniformly provided on 1 inner sidewall of heating chamber, light compensating lamp 7 uses heat-resisting LED light or halogen lamp;Heating Chamber has transparent windows on 1 outer surface.
Stepless elevating means for tables includes retractable rod 4, and bottom end is fixed on the upper surface of bearing sensor 6 by support, Support uses stainless steel or aluminium;It is 10- that retractable rod 4, which adjusts the distance between articles holding table 3 and infrared radiation panel 2 range, 40cm。
As shown in Fig. 2, the flow chart of the drying means for the infrared radiation drying on-line monitoring device of the present embodiment, wherein N represents "No", and Y represents "Yes", and drying means specifically comprises the following steps:
Step 1: preparing material 8, fresh fruit of vegetables is cleaned and is sliced, the fruit and vegetable tablet after preparation is laid in articles holding table 3 On, form the fruit and vegetable tablet thin layer with a thickness of 8mm;
Step 2: the temperature-sensing element of temperature sensor 12 to be connected to the surface of fruit and vegetable tablet thin layer, infrared radiation panel 2 is adjusted Distance with articles holding table 3 is 20cm, and fruit and vegetable tablet thin layer is dried under the irradiation of infrared radiation panel 2, the temperature in drying process Degree and qualitative data pass through 13 real-time Transmission of data acquisition module into computer 14;
Step 3: computer 14 will be according to default drying condition: temperature is 60 DEG C, rate of drying is 1.5 × 10-2kg H2O/ (kgmin) carries out on-line control to 2 temperature of infrared radiation panel, until fruit and vegetable tablet thin layer reaches preset drying condition;
Step 4: by the fruit and vegetable tablet thin layer handled well in third step be put into equipped with it is auxiliary heat and blower device baking oven in 2~ 4h, holding temperature take the steady temperature between 40~60 DEG C;
Cool down step 5: the fruit and vegetable tablet thin layer handled well in the 4th step is placed in room temperature environment, until temperature is down to 25℃。
In implementation process, light compensating lamp 7 is uniformly distributed to be set on the inner wall of heating chamber 1 present invention, is existed for observing material 8 The variation of drying process in heating chamber 1.Switch valve 11 connects external power supply and provides power supply for whole device, detects temperature of charge Temperature sensor 12, the thermocouple 10 for examining 1 temperature of infrared radiation panel are mounted on 1 outer wall of heating chamber;Wherein switch valve 11 connects To power supply, power supply is 220V alternating current or 380V three-phase alternating current;Data acquisition module 13 passes through USB data line and computer 14 It connects, analyzes software equipped with expert data in computer 14, control is adjusted according to the rate of default dry materials and temperature online 1 temperature of infrared radiation panel, to reach optimum drying effect.Reach drying condition fruit and vegetable tablet can directly warehouse entry storage storage or Transport circulation market sale.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right It is required that within protection scope of the present invention, any type of modification can be made.

Claims (10)

1. a kind of infrared radiation drying on-line monitoring device, including heating chamber (1), it is characterised in that: peace in the heating chamber (1) Equipped with articles holding table (3), infrared radiation panel (2) are installed at the top of the heating chamber (1) above articles holding table (3), the bottom of articles holding table (3) is logical It crosses stepless elevating means for tables to be mounted on bearing sensor (6), bearing sensor (6) is fixed on the bottom of heating chamber (1);Heating chamber (1) on-off control system (9) are installed on outer wall comprising connect the switch valve (11) of external power supply, connect with infrared radiation panel (2) The thermocouple (10) connect, thermocouple (10) is by being signally attached to data acquisition module (13), with programmable control system Computer (14) connection;Temperature sensor (12) are also connected on data acquisition module (13), with the material on articles holding table (3) (8) it connects;Computer (14) is electrically connected with the bearing sensor (6).
2. a kind of infrared radiation drying on-line monitoring device as described in claim 1, it is characterised in that: the data acquisition module Block (13) includes temperature collecting module and Weight acquisition module, and data acquisition module (13) passes through USB data line and computer (14) it connects, computer (14) is based on the temperature of data information control infrared radiation panel (2) of data acquisition module (13) acquisition.
3. a kind of infrared radiation drying on-line monitoring device as described in claim 1, it is characterised in that: thermocouple (10) uses K-type, N-type, E type or T-type model, the temperature range for the infrared radiation panel (2) that thermocouple (10) can measure are 20 DEG C -300 DEG C.
4. a kind of infrared radiation drying on-line monitoring device as described in claim 1, it is characterised in that: the temperature sensor It (12) is K-type or T-type High Accuracy Thermocouple Temperature, temperature-sensing element is connect with material (8) surface.
5. a kind of infrared radiation drying on-line monitoring device as described in claim 1, it is characterised in that: the bearing sensor (6) pressure sensitive device is equipped in, bearing sensor (6) is connect with computer (14) by USB line.
6. a kind of infrared radiation drying on-line monitoring device as described in claim 1, it is characterised in that: the articles holding table (3) For square shape pallet or pass through the heating chamber (1) internal continuous transfer band.
7. a kind of infrared radiation drying on-line monitoring device as described in claim 1, it is characterised in that: on the inside of heating chamber (1) It is uniformly provided on wall multiple groups light compensating lamp (7), the light compensating lamp (7) uses heat-resisting LED light or halogen lamp;Heating chamber (1) outer surface On have transparent windows.
8. a kind of infrared radiation drying on-line monitoring device as described in claim 1, it is characterised in that: stepless elevating means for tables packet It includes retractable rod (4), bottom end is fixed on the upper surface of bearing sensor (6) by support, and support uses stainless steel or aluminium Material;It is 10-40cm that retractable rod (4), which adjusts the distance between articles holding table (3) and infrared radiation panel (2) range,.
9. utilizing the drying means of infrared radiation drying on-line monitoring device as described in claim 1, it is characterised in that: including Following steps:
Step 1: preparing material (8), fresh fruit of vegetables is cleaned and is sliced, the fruit and vegetable tablet after preparation is laid in articles holding table (3) On, form fruit and vegetable tablet thin layer;
Step 2: the temperature-sensing element of temperature sensor (12) to be connected to the surface of fruit and vegetable tablet thin layer, adjust infrared radiation panel (2) With the distance of articles holding table (3), fruit and vegetable tablet thin layer is dried under the irradiation of infrared radiation panel (2), the temperature in drying process Pass through data acquisition module (13) real-time Transmission into computer (14) with qualitative data;
Step 3: computer (14) will carry out on-line control to infrared radiation panel (2) temperature according to default drying condition, until fruit Vegetable piece thin layer reaches preset drying condition;
Step 4: the fruit and vegetable tablet thin layer handled well in third step is put into 2~4h in the baking oven equipped with auxiliary heat and blower device, protect Temperature takes the steady temperature between 40~60 DEG C;
Cool down step 5: the fruit and vegetable tablet thin layer handled well in the 4th step is placed in room temperature environment.
10. the drying means of infrared radiation drying on-line monitoring device as claimed in claim 9, it is characterised in that: the first step Fruit and vegetable tablet thickness of thin layer before middle drying is not more than 10mm.
CN201910114191.7A 2019-02-14 2019-02-14 A kind of infrared radiation drying on-line monitoring device and drying means Pending CN109631566A (en)

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Application Number Priority Date Filing Date Title
CN201910114191.7A CN109631566A (en) 2019-02-14 2019-02-14 A kind of infrared radiation drying on-line monitoring device and drying means

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116379718A (en) * 2023-03-10 2023-07-04 江苏科技大学 Infrared and hot air combined intelligent control drying system and method based on multi-source information fusion

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Publication number Priority date Publication date Assignee Title
CN201387412Y (en) * 2009-03-24 2010-01-20 山西农业大学 Water content online monitoring device during freeze drying process of fresh products
CN201589669U (en) * 2009-08-28 2010-09-22 中山大学 Microwave drying real-time monitoring device
CN102871201A (en) * 2011-07-11 2013-01-16 华中农业大学 Drying device suitable for food and food drying method thereof
CN103583671A (en) * 2013-10-17 2014-02-19 江苏大学 Technical method for catalytic infrared dry-process de-enzyming and synchronous dehydration of fruits and vegetables
CN104522152A (en) * 2014-12-12 2015-04-22 江苏大学 Sequential infrared hot air drying method for dry-method de-enzyming treatment of fruits and vegetables
CN104585849A (en) * 2015-01-28 2015-05-06 佳木斯大学 Variable-temperature infrared convective drying device for fungus and drying method
CN104792121A (en) * 2015-04-23 2015-07-22 江南大学 Hot air microwave coupling drying system based on material drying rate control
CN209639494U (en) * 2019-02-14 2019-11-15 江南大学 A kind of infrared radiation drying on-line monitoring device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201387412Y (en) * 2009-03-24 2010-01-20 山西农业大学 Water content online monitoring device during freeze drying process of fresh products
CN201589669U (en) * 2009-08-28 2010-09-22 中山大学 Microwave drying real-time monitoring device
CN102871201A (en) * 2011-07-11 2013-01-16 华中农业大学 Drying device suitable for food and food drying method thereof
CN103583671A (en) * 2013-10-17 2014-02-19 江苏大学 Technical method for catalytic infrared dry-process de-enzyming and synchronous dehydration of fruits and vegetables
CN104522152A (en) * 2014-12-12 2015-04-22 江苏大学 Sequential infrared hot air drying method for dry-method de-enzyming treatment of fruits and vegetables
CN104585849A (en) * 2015-01-28 2015-05-06 佳木斯大学 Variable-temperature infrared convective drying device for fungus and drying method
CN104792121A (en) * 2015-04-23 2015-07-22 江南大学 Hot air microwave coupling drying system based on material drying rate control
CN209639494U (en) * 2019-02-14 2019-11-15 江南大学 A kind of infrared radiation drying on-line monitoring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116379718A (en) * 2023-03-10 2023-07-04 江苏科技大学 Infrared and hot air combined intelligent control drying system and method based on multi-source information fusion

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