CN201888204U - Device for generating hot air in baking and drying grain in storage - Google Patents

Device for generating hot air in baking and drying grain in storage Download PDF

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Publication number
CN201888204U
CN201888204U CN2010206376542U CN201020637654U CN201888204U CN 201888204 U CN201888204 U CN 201888204U CN 2010206376542 U CN2010206376542 U CN 2010206376542U CN 201020637654 U CN201020637654 U CN 201020637654U CN 201888204 U CN201888204 U CN 201888204U
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CN
China
Prior art keywords
cold
hot
junction district
grain
air
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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.)
Expired - Fee Related
Application number
CN2010206376542U
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Chinese (zh)
Inventor
黄克
芦晓晴
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ZHUZHOU KELI INTERCHANGEABLE EQUIPMENT CO Ltd
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ZHUZHOU KELI INTERCHANGEABLE EQUIPMENT CO Ltd
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Priority to CN2010206376542U priority Critical patent/CN201888204U/en
Application granted granted Critical
Publication of CN201888204U publication Critical patent/CN201888204U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a device for generating hot air in baking and drying grain in storage. In a multi-stage drying process of heating, tempering, heating, tempering and cooling of grain drying, a semiconductor drying hot air generating device is arranged and comprises a semiconductor refrigerating and heating device, and the two surfaces of the semiconductor refrigerating and heating device are provided with two subareas; a cold end of the semiconductor refrigerating and heating device after the semiconductor refrigerating and heating device is connected with a direct current power supply is of a cold end area, and a hot end of the semiconductor refrigerating and heating device after the semiconductor refrigerating and heating device is connected with the direct current power supply is of a hot end area; an air inlet is arranged at the upper part of the cold end area, and air flows into the cold end area through the air inlet and is cooled by the cold end of the semiconductor refrigerating and heating device; a cold air outlet is arranged at the lower part or the bottom of the cold end area and is connected with an inlet of a fan or an air pump through a pipeline, and an outlet of the fan or the air pump is connected with a hot air inlet arranged at the bottom of the hot end area; and a drying hot air outlet is arranged at the top or the upper side surface of the hot end area to supply a hot air source to dry grain.

Description

A kind of device that is used for toasting when grain stores dry generation hot blast
Technical field
The device of the baking drying when the utility model belongs to the grain storage is a kind of hot air apparatus that utilizes semiconductor devices as the Cooling and Heat Source drying grain specifically.Being suitable for all needs in the dry grain reserves processing technology that stores again.
Background technology
China produces about 600,000,000 tons of grain per year at present.According to statistics, grain after the results in processes such as threshing, airing, storage, transportation annual loss up to 15%, considerably beyond the standard of FAO (Food and Agriculture Organization of the United Nation).In these losses, annual because of the paddy that has a humid climate, wets have little time to dry or do not reach safe moisture cause go mouldy, germinate up to 5%.If calculate by producing 500000000 ton-grain food per year, be equivalent to lose 2,500 ten thousand ton-grain food, this numeral is surprising.Therefore the drying of grain is a thing that extremely merits attention during present grain is handled.Drying is that postpartum handled one of most important link by grain, and by drying grain moisture content being reduced to below the safe moisture is the most important condition of guaranteeing stored grain safety.Simultaneously, whether drying operation is proper, also directly affects grade, crudy and the edible quality of grain, and then has influence on grain farmer and grain circulation economic benefit of enterprises and people's quality of life.In recent years, variation has taken place in grain purchasing and marketing system and supply-demand relationship, the popularization of mechanized harvest operation in addition, high moisture grain quantity is more and more, some traditional non-high moisture grain producing regions have also become the high-moisture grain producing region, and traditional high moisture grain producing region grain harvest moisture also raises to some extent, has further enlarged the demand space of drying equipment.For example, southern rice-producing area is also carrying out the mechanical drying pilot, and most grain depots also lack suitable drying equipment.In case found suitable drying mode, can increase sharply to the demand of such drying equipment.Development grain drying machineryization technology is one of important method that reduces grain loss.Present grain drying mainly carries out drying by the mechanization drying equipment, mainly is to adopt the engineering measure, makes grain moisture content drop to the process of safe moisture; The application machine dry technology can reduce and prevent the grain loss of going mouldy, favourable increasing both production and income.Make grain reach the purpose of safe storage, the safe moisture of general cereal crops seed is 13%~14%, and the oil crops seed is 9%.Grain drying technology grain drying utilizes drying medium to impel the grain seed to emit aqueous vapor and carry out.At present, generally use with the drying machine of air both at home and abroad as drying medium, it at first arrives needed temperature to air heat, utilize blower fan that the heat of hot-air is conducted to grain with convection type, make its intensification, the moisture vaporization is taken away this part moisture then, and at this moment drying medium plays dual parts thermophore and carries wet body.Microwave and far infrared drying technology are adopted in the heating of hot-air at present more, and to the grain heat temperature raising, air dielectric only plays the effect of carrying wet body by electromagnetic wave.Because the particularity of grain, in order to guarantee the quality of grain, general grain drying technology adopts the multistage drying process of heating-tempering-heating-tempering-cooling more.But in the existing grain drying equipment, heating and cooling (or tempering) are to adopt different means to realize, promptly heat and heat with electromagnetic wave, and cooling is cooled off by air-cooler, therefore energy consumption is bigger, especially very big for this drying mode energy dissipation of small-sized grain drying equipment, necessary this is improved.
The utility model content
The purpose of this utility model is: the deficiency at existing grain dryer provides a kind of energy consumption still less, and the energy is fully used, the device that is used for toasting when grain stores dry generation hot blast that energy waste is few.The heating means of grain drying and the thermal efficiency of device are further improved, and heat loss further reduces.For energy savings, strengthen environmental protection has great meaning like this.
The purpose of this utility model is achieved through the following technical solutions:
A kind of being used for toasted the dry device that produces hot blast when grain stores, and when utilizing semiconductor cooling device also to cry the work of temperature-difference refrigerating device, N type and P-type semiconductor element one side can be absorbed heat and be turned cold gradually, the principle of another side meeting heat release heating.In the heating-tempering-heating-tempering-cooling multistage drying process of grain drying, semiconductor dry-heat air generation device is set, semiconductor dry-heat air generation device comprises a semiconductor refrigerating heater members, two subregions are set on the two sides of semiconductor refrigerating heater members, wherein, the cold junction that the semiconductor refrigerating heater members is connected behind the dc source is the cold junction district, and the hot junction that the semiconductor refrigerating heater members is connected behind the dc source is the hot junction district; Top in the cold junction district is provided with air inlet, and air enters in the cold junction district from air inlet, and by semiconductor refrigerating heater members cold-side cooling; Bottom or bottom in the cold junction district are provided with the cold wind outlet, and the cold wind outlet links to each other by the inlet of pipeline with blower fan or air pump, and the outlet of blower fan or air pump links to each other the outlet that top or the upper side in the hot junction district is provided with dry-heat air with the hot-wind inlet of bottom, hot junction district.For rate of heat exchange is provided, can radiating fin be set respectively on the cold junction and the two sides, hot junction of semiconductor refrigerating heater members, lay respectively in cold junction district and the hot junction district.
The air that will be used for grain heat-drying during use cools off in the face of air carries out drying by one of semiconductor refrigerating heater members heat absorption, heating provides heated drying air to grain drying with the cold air of the drying one side by the heating of semiconductor refrigerating heater members again, and grain is carried out drying processing.
Advantage of the present utility model is: this method makes full use of the different characteristic in semiconductor refrigerating heater members two sides, respectively air is carried out drying and heating, for grain dehumidifying drying, the dry dry-heat air that produces, can significantly reduce heat loss, improved the thermal efficiency.The thermal efficiency is compared with the mode of former heated-air drying, can improve the thermal efficiency more than 30%.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
As shown in Figure 1, a kind of being used for toasted the dry device that produces hot blast when grain stores, and when utilizing semiconductor cooling device also to cry the work of temperature-difference refrigerating device, N type and P-type semiconductor element one side can be absorbed heat and be turned cold gradually, the principle of another side meeting heat release heating.In the heating-tempering-heating-tempering-cooling multistage drying process of grain drying, semiconductor dry-heat air generation device is set, semiconductor dry-heat air generation device comprises a semiconductor refrigerating heater members 6, two subregions are set on the two sides of semiconductor refrigerating heater members, wherein, the cold junction that semiconductor refrigerating heater members 6 is connected behind the dc source is cold junction district 5, and the hot junction that semiconductor refrigerating heater members 6 is connected behind the dc source is hot junction district 10; Be provided with air inlet 4 on the top in cold junction district 5, air enters in the cold junction district 5 from air inlet 4, and by semiconductor refrigerating heater members 6 cold-side coolings, when temperature was hanged down to the following temperature of dew point, wherein moisture can be condensed into water and become dry cold air; Bottom or bottom in cold junction district 5 are provided with cold wind outlet 12, cold wind outlet 12 links to each other with the inlet of blower fan or air pump 9 by pipeline 7, the outlet of blower fan or air pump links to each other the outlet 1 that top or the upper side in hot junction district 10 is provided with dry-heat air with the hot-wind inlet 11 of bottom, hot junction district.In order to improve rate of heat exchange, can radiating fin 13 and 14 be set respectively on the cold junction and the two sides, hot junction of semiconductor refrigerating heater members, lay respectively in cold junction district and the hot junction district.The cold junction district of this device and hot junction district are by division board 15 isolating seals, and insulation material is equipped with in portion within it.Cold junction district 5 at device also is provided with temperature detecting point 3 with hot junction district 10, is used to gather the temperature signal in cold junction district and hot junction district, sends into control system temperature is controlled; Bottom in the cold junction district also is provided with condensed water discharge outlet 8, is used to drain the airborne moisture through cold junction district's condensation.
The air that will be used for grain heat-drying during use cools off in the face of air carries out drying by one of semiconductor refrigerating heater members heat absorption, heating provides heated drying air to grain drying with the cold air of the drying one side by the heating of semiconductor refrigerating heater members again, and grain is carried out drying processing.

Claims (5)

1. one kind is used for toasting the dry device that produces hot blast when grain stores, and when utilizing semiconductor cooling device also to cry the work of temperature-difference refrigerating device, N type and P-type semiconductor element one side can be absorbed heat and be turned cold gradually, the principle of another side meeting heat release heating; It is characterized in that: in the heating-tempering-heating-tempering-cooling multistage drying process of grain drying, semiconductor dry-heat air generation device is set, semiconductor dry-heat air generation device comprises a semiconductor refrigerating heater members, two subregions are set on the two sides of semiconductor refrigerating heater members, wherein, the cold junction that the semiconductor refrigerating heater members is connected behind the dc source is the cold junction district, and the hot junction that the semiconductor refrigerating heater members is connected behind the dc source is the hot junction district; Top in the cold junction district is provided with air inlet, and air enters in the cold junction district from air inlet, and by semiconductor refrigerating heater members cold-side cooling, when temperature was hanged down to the following temperature of dew point, wherein moisture can be condensed into water and become dry cold air; Bottom or bottom in the cold junction district are provided with the cold wind outlet, and the cold wind outlet links to each other by the inlet of pipeline with blower fan or air pump, and the outlet of blower fan or air pump links to each other the outlet that top or the upper side in the hot junction district is provided with dry-heat air with the hot-wind inlet of bottom, hot junction district.
2. as claimed in claim 1 being used for toasted the dry device that produces hot blast when grain stores, and it is characterized in that: cold junction and two sides, hot junction at the semiconductor refrigerating heater members are provided with radiating fin respectively, lay respectively in cold junction district and the hot junction district.
3. the dry device that produces hot blast of baking when being used for grain and storing as claimed in claim 2 is characterized in that: cold junction district and hot junction district be by division board (15) isolating seal, and in cold junction district and inside, hot junction district insulation material is housed.
4. the device that is used for toasting when grain stores dry generation hot blast as claimed in claim 3, it is characterized in that: also be provided with temperature detecting point in cold junction district and hot junction district, be used to gather the temperature signal in cold junction district and hot junction district, send into control system temperature is controlled.
5. as claimed in claim 4 being used for toasted the dry device that produces hot blast when grain stores, and it is characterized in that: the bottom in the cold junction district also is provided with condensed water discharge outlet, is used to drain the airborne moisture through cold junction district's condensation.
CN2010206376542U 2010-12-02 2010-12-02 Device for generating hot air in baking and drying grain in storage Expired - Fee Related CN201888204U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206376542U CN201888204U (en) 2010-12-02 2010-12-02 Device for generating hot air in baking and drying grain in storage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206376542U CN201888204U (en) 2010-12-02 2010-12-02 Device for generating hot air in baking and drying grain in storage

Publications (1)

Publication Number Publication Date
CN201888204U true CN201888204U (en) 2011-07-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101986075A (en) * 2010-11-30 2011-03-16 株洲科力通用设备有限公司 Method and device for providing dry hot air for industrial dehumidifying and drying and applications
CN104171873A (en) * 2014-05-14 2014-12-03 辽宁三源健康金米股份有限公司 Corn rice processing method capable of improving content of resistant starch
CN106979671A (en) * 2017-03-13 2017-07-25 上海理工大学 Semiconductor grain heat-drying case
CN112295699A (en) * 2020-10-23 2021-02-02 蒋明华 Peel processing extraction element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101986075A (en) * 2010-11-30 2011-03-16 株洲科力通用设备有限公司 Method and device for providing dry hot air for industrial dehumidifying and drying and applications
CN104171873A (en) * 2014-05-14 2014-12-03 辽宁三源健康金米股份有限公司 Corn rice processing method capable of improving content of resistant starch
CN106979671A (en) * 2017-03-13 2017-07-25 上海理工大学 Semiconductor grain heat-drying case
CN112295699A (en) * 2020-10-23 2021-02-02 蒋明华 Peel processing extraction element

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110706

Termination date: 20131202