CN102003870A - Heat-elimination recovery type drying device - Google Patents
Heat-elimination recovery type drying device Download PDFInfo
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- CN102003870A CN102003870A CN2010102827504A CN201010282750A CN102003870A CN 102003870 A CN102003870 A CN 102003870A CN 2010102827504 A CN2010102827504 A CN 2010102827504A CN 201010282750 A CN201010282750 A CN 201010282750A CN 102003870 A CN102003870 A CN 102003870A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides a heat-elimination recovery type drying device. A drying chamber is divided into a plurality of areas and each area is respectively provided with a heat exchange device and a plurality of suction fans for supplying the gas into the drying chamber. The supplied gas after heat exchange in each heat exchange device is respectively sucked by a first suction fan in each area and heated by the heating device and the article to be dried in the drying chamber is dried and then flows through the adjacent suction fans in turn and are heated to dry the article to be dried and finally discharged outside by each heat-elimination recovery type heat exchange device. During the drying process, the drying device heats the air for many times and the process is cycled for many times, so as to increase the drying efficiency and reduce the energy consumption.
Description
Technical field
The present invention relates to a kind of drying device, particularly relate to and a kind ofly be provided with heat extraction and reclaim heat-exchange device, make exhaust with air-breathing between produce heat exchange, carry out the heat extraction recovery type drying device of drying with this.
Background technology
The agricultural product drying device of prior art has been described in detail in Korean registered patent KR10-0492033.As shown in Figure 1, in the prior art, the hot and humid air that the outlet 12 by hothouse 10 is discharged use when dry, wherein discharge behind the heat-exchange device 100 is reclaimed in the part heat extraction of flowing through under the effect of exhaust fan 22.Extraneous air OA flows through described heat extraction and reclaims heat-exchange device 100 under the effect of suction fan 21, behind the recovery heat, be supplied to drying device from discharge gas EA.Reclaim heat-exchange device 100 from heat extraction and be fed to air in the drying device is inhaled into hothouse 10 under the effect of suction fan 20 air entry 11, the supply gas SA that is sucked by suction fan 20 is heated to by heater 30 and flows through air after the uniform temperature and divide adapted blade 40, flow into hothouse 10 inside then equably, the thing that is dried on the conveyer belt 50 is carried out drying, discharge by outlet 12 then.
Here, outlet by above-mentioned hothouse 10 is 12 that discharge, the thing that is dried is carried out used hot and humid air in the drying course, wherein most ofly flows into hothouse 10 inside again as the air entry 11 of reflux gas RA by hothouse 10 and circulates.
In addition, applicant of the present invention had once applied for the patent of invention of a kind of agricultural aquatic products with drying device, and its application number is KR10-0928703, and its structure as shown in Figure 2.This drying device is 12 that discharge the outlet from hothouse 10, dry run used hot and humid air all as discharge gas EA, reclaiming heat-exchange device 100 rows by heat extraction in the outside, transmitting heat extraction to supply gas SA, is a kind of 100% suction and discharge formula drying device.
For existing heat extraction recovery type farming aquatic products drying device, mode shown in Figure 1 is owing to reclaim the heat of discharging gas, therefore can be by the humidity of inhaling, the amount of emptying gas is regulated dry air a little, but the amount of its suction air is limited, is difficult to significantly reduce the humidity of dry air; And the mode of Fig. 2 is all used the extraneous air that has reclaimed heat extraction as dry air, it carries out being discharged from after the circulation in drying device inside, so it is too short to participate in the time of dry run, there is the problem that does not make full use of dry air, causes energy waste.
Summary of the invention
The present invention proposes in order to address the above problem, its purpose is: a kind of heat extraction recovery type drying device is provided, make inhaled air from discharge gas, reclaim heat, repeatedly circulate by suction fan and in hothouse inside with the low wet condition of high temperature, after reaching certain humidity, carry out the suction and discharge of heat extraction recovery type once more, carry out the suction and discharge of above-mentioned heat extraction recovery type intermittently with this, make full use of the low air of humidity.
In addition, another object of the present invention is to: reduce energy loss, accelerate rate of drying.Be dried thing or be placed with the inner supply of the hothouse air of the thing that is dried at conveyer belt from the side of drying device to being placed with, and reclaim heat-exchange device by heat extraction and carry out suction and discharge by each zone, and reclaim the reflux gas of heat-exchange device supply in the dirty super-dry of the effect of suction fan chamber by above-mentioned heat extraction, under the suction fan effect of the next position, flow through hothouse once more afterwards, carry out drying repeatedly, allow air circulation back in certain zone reclaim heat-exchange device row to the outside by heat extraction.This drying mode is that unit carries out with each zone, and above-mentioned zone is to divide by length direction in the inside of hothouse.
Promptly, the present invention is divided into a plurality of zones to the hothouse of drying device, allow the air that is used for drying operation in the zone repeatedly flow into hothouse inside repeatedly, after reaching certain value, its humidity reclaims heat-exchange device row to the outside by heat extraction again, to supply transfer of air heat, cut down the consumption of energy simultaneously.
In order to achieve the above object, in heat extraction recovery type drying device of the present invention, hothouse is divided into a plurality of zones, one heat-exchange device and a plurality of suction fan to the hothouse air-supply are set respectively in each zone, supply gas in described each heat-exchange device after heat exchange sucked by the first suction fan in each zone respectively and by heater) heat after, the thing that is dried in the hothouse is carried out drying, flow through adjacent suction fan then successively, after flowing through each suction fan, all be heated and the thing that is dried is carried out drying, reclaim heat-exchange device by each heat extraction at last and discharge.
Do this a kind of improvement, be heated and the thing that is dried is carried out the air entry of the dried gas downstream suction fan that the flow direction is adjacent after outlet is discharged after each air-breathing suction.
Improve as another kind, the described thing that is dried is arranged on the conveyer belt, and described conveyer belt is arranged to one or more layers.
In order to improve drying effect, in described hothouse, also be provided with magnetron, the microwave that magnetron produces is fed in the hothouse by waveguide pipe, and thing carries out drying to being dried.
As improvement, be provided with the division board that prevents that air from flowing along the conveyer belt moving direction in the upper and lower side of the conveyer belt of described hothouse inside, the structure setting of described division board not hinder be dried thing and conveyer belt to move, thus improved drying efficiency.
In addition, in order effectively to carry out water conservancy diversion, in each described zone, be respectively arranged with ventilation flow passage and inspiratory flow path.Described ventilation flow passage connects the air outlet that sucked by suction fan and carry out behind the drying operation discharging from hothouse and adjacent to the air entry of next suction fan of described suction fan; Described inspiratory flow path connects suction fan, heater and the hothouse in each zone respectively.
In described drying device,, reflux gas is circulated repeatedly in hothouse inside if the reflux gas humidity that hothouse is discharged is lower than certain value; If the humidity of reflux gas is higher than certain value, then in the outside, suck supply gas the part row who reclaims the heat-exchange device reflux gas by heat extraction, make described supply gas mix the back with reflux gas in the hothouse inner loop, carry out drying.
Heat extraction recovery type drying device of the present invention, after hothouse is divided into a plurality of zones, used air repeatedly flows into hothouse repeatedly when making drying, after airborne humidity reaches certain value, when reclaiming the heat-exchange device vent the air overboard, allow and discharge gas to air-breathing transmission heat by heat extraction.That is, expendable air is not directly arranged to the outside in dry run, but is used for drying once more after the heating, reaches certain value up to the humidity of air, reclaims heat-exchange device row to the outside by heat extraction afterwards.In addition, hothouse is marked off a plurality of zones by length direction, and be that unit carries out drying, improved drying efficiency, and reduced energy consumption by reclaiming heat extraction with each zone.
Description of drawings
Fig. 1 is the schematic diagram that circulation of air state in the drying device of heat-exchange device is reclaimed in heat extraction that is provided with of prior art;
Fig. 2 is the schematic diagram that circulation of air state in the drying device of heat-exchange device is reclaimed in heat extraction that is provided with of another prior art;
Fig. 3 a is the schematic diagram with air flow condition in the drying device repetitive cycling process that heat extraction reclaims heat-exchange device of the present invention;
Fig. 3 b is the schematic diagram that drying device air flow condition in heat extraction recovery suction and discharge process of heat-exchange device is reclaimed in heat extraction that has of the present invention;
Fig. 4 is the schematic diagram that drying device air flow condition in heat extraction recovery suction and discharge process of heat-exchange device is reclaimed in heat extraction that has of the present invention;
Fig. 5 is the schematic diagram of an embodiment of heat extraction recovery type drying device of the present invention;
Fig. 6 is the side generalized section that shows that dry air flows among the embodiment of heat extraction recovery type drying device of the present invention;
Fig. 7 is the flat cutting face schematic diagram that shows significant points in the heat extraction recovery type drying device of Fig. 6;
Fig. 8 is the structural representation of multistage ventilation path and inspiratory flow path in the embodiments of the invention;
Fig. 9 is the schematic diagram of air flow condition among the present invention;
Figure 10 A is the ventilation flow passage schematic diagram of another embodiment of the present invention;
Figure 10 B is the side cut-away view of the ventilation flow passage of Figure 10 A;
Figure 11 is the significant points schematic diagram that shows the ventilation flow passage of further embodiment of this invention;
Figure 12 is the planar structure schematic diagram of the ventilation flow passage of Figure 11;
Figure 13 is the ventilation flow passage of further embodiment of this invention and the schematic diagram of inspiratory flow path;
Figure 14 is the schematic diagram of the heat extraction recovery type drying device of further embodiment of this invention;
Figure 15 is the schematic diagram of the heat extraction recovery type drying device of another embodiment of the present invention;
Figure 16 is the side cut-away view of the heat extraction recovery type drying device of Figure 15;
Figure 17 is the flat cutting face schematic diagram of the heat extraction recovery type drying device of Figure 15.
Wherein:
10: hothouse 10a: ventilation flow passage 10b: inspiratory flow path
11: air entry 12: outlet 1-N, 2-N, 20: suction fan
30: heater 40: blade 50: conveyer belt
51: division board 60: magnetron 61: waveguide pipe
70: cooling and dehumidifying device 75: drying table 80: two-way air throttle
81: two-way blast regulator 100,101: heat-exchange device is reclaimed in heat extraction
The specific embodiment
The present invention relates to laver, agricultural aquatic products, industrial products etc. are carried out dry drying device, particularly relate to and repeatedly reclaim used air in the dry run, after this air reaches certain humidity, reclaim the heat extraction recovery type drying device of heat-exchange device row by heat extraction again to the outside.
That is: heat extraction recovery type drying device of the present invention repeatedly is fed to hothouse inside to the suction gas (dry air) that reclaims the low humidity of heat extraction from discharge gas by suction fan, make it repeatedly to circulate, after the humidity of dry air reaches certain value, when discharging dry air, allow suck the heat that the gas recovery is discharged.Owing to carry out the suction and discharge of heat extraction recovery type intermittently, thereby can make full use of dry air.In the present invention, hothouse is divided into a plurality of zones by length direction after, make each zone reclaim heat-exchange device by heat extraction respectively and carry out air-breathing and exhaust.
In addition, the present invention is provided with heat extraction and reclaims heat-exchange device in each zone, make suction gas from discharge gas, reclaim heat, and sucking after gas is used for the drying operation of hothouse, make it repeated multiple times and carry out the cyclic drying process, when water loading of the air reaches certain value, with its discharge.
In the present invention, a plurality of suction fans are set, to hothouse supply air in a side of drying device, and hothouse is divided into a plurality of zones, the a plurality of suction fans in each zone are located in utilization, allow air circulate repeatedly in each zone, are fully carrying out the discharge of drying back.Here, discharge gas and heat extraction and reclaim and air-breathingly carry out simultaneously, and heat extraction recovery suction and discharge process is carried out intermittently.When carrying out suction and discharge, the highly humid air in the hothouse is arranged fully to the outside.
In addition, in another embodiment of the present invention, after flowing into hothouse under the effect of No. 1 suction fan, finish dry air, under the effect of No. 2 suction fans again in the hothouse inner loop, the air of finishing drying operation under the effect of No. 2 suction fans under the effect of No. 3 suction fans again in the hothouse inner loop.By a plurality of suction fans drying is carried out in a zone with this, allow air repeatedly circulate, and No. 1 suction fan supply air-breathing heat extraction reclaim in the heat-exchange device with the zone in the discharge gas of last suction fan discharge carry out heat exchange, be fed to intra-zone continuously.
In above-mentioned drying mode, drying is carried out in a plurality of zones in the hothouse respectively independently.
That is, after the present invention is divided into a plurality of zones to the dry place of a drying device, corresponding to each zone heat extraction is set respectively and reclaims heat-exchange device.A plurality of suction fans are set in each zone, allow air, carry out drying in the hothouse inner loop.Can utilize the low humid air that sucks from the outside to improve drying efficiency like this, can also reclaim heat extraction simultaneously, save dry required energy.
In the present invention, supply gas (SA:Supply Air) refers to reclaim the air that heat-exchange device 100 is supplied to hothouse 10 by heat extraction, discharge gas (EA:Exhaust Air) refers to finish dry back to be discharged, arranges to air outside by heat-exchange device 100 from hothouse 10, and reflux gas (RA:Return Air) refers to be fed to the air in the hothouse 10 again or flow through the air that heat-exchange device 100 is reclaimed in heat extraction after hothouse 10 is discharged.1. SA in Fig. 1～4 is the supply gas after the heating.
With reference to the accompanying drawings embodiments of the invention are elaborated.
Shown in Fig. 3 a, the present invention reclaims heat-exchange device 100 by heat extraction and carries out the discharge of dry room air and the suction of extraneous air, by suction fan 20 the low humid air SA that is fed to drying device inside is fed to hothouse 10 inside afterwards.If the dry air of discharging by the outlet 12 of hothouse 10 does not reach certain humidity, then be supplied to hothouse 10 inside again by suction fan 20 repeatedly.When the reflux gas RA of circulation reaches certain humidity, under the effect of the suction and discharge fan 21,22 that is arranged at heat extraction recovery heat-exchange device 100 suction and discharge sides, the drying of the high humility of drying device inside is fully discharged with air, outside low humid air SA flows into drying device inside, under the effect of suction fan 20, should be supplied to hothouse 10 inside by low humid air, mix with the high humidity reflux gas RA that discharges by hothouse 10 outlets 12, under the effect of suction fan 20, be fed in the hothouse 10.
Shown in Fig. 3 b, when carrying out heat extraction recovery suction and discharge operation, the high humidity reflux gas RA that has been used for dry run mixes with the low humidity supply gas SA that sucks from the outside, afterwards in a period of time in hothouse 10 inner loop, make the air of hothouse 10 inside be in the lower state of humidity.Above-mentioned heat extraction is reclaimed the suction and discharge operation and is carried out intermittently.When the air humidity in the drying device reaches certain level when following, stop heat extraction and reclaim the suction and discharge operation, the air that makes drying device inside makes from the low humidity supply gas SA that discharges gas EA recovery heat extraction to be used for drying operation fully, economically in hothouse 10 inner circulations continuously.
In addition, as shown in Figure 4, under the situation of using independent hothouses 10 such as cavity or drying room, also can use aforesaid way.That is, allow flow through cooling and dehumidifying device 70 and heat extraction and reclaim supply gas SA behind the heat-exchange device 100 and flow through suction fan 20 and heater 30 after, flow through the hothouse 10 that has cavity or drying room structure, is provided with drying table 75 in inside.The air of discharging from above-mentioned hothouse 10 passes through adjuster, flows into hothouse again as reflux gas RA, perhaps reclaims heat-exchange device 10 by heat extraction, as discharging gas EA row to the outside.
That is, after the supply gas SA of low humidity was fed to hothouse 10 and carries out drying, the dry air RA that is discharged was by two-way air throttle (damper) 80 its flow directions of decision; If air humidity does not reach certain humidity, then under suction fan 20 effects, flow into hothouse 10 inside repeatedly; If air humidity reaches certain humidity, then reclaim heat-exchange device 100 by heat extraction, under exhaust fan 22 effects, discharge.At this moment, outside low humid air OA absorbs the heat of discharging air, and is supplied to hothouse 10.
Above-mentioned heat extraction recovery type suction and discharge operation is carried out intermittently, when the arrival of the air humidity in drying device certain value is following, stop heat extraction and reclaim the suction and discharge operation, make air in the drying device continuously in hothouse 10 inner loop, make from discharging the outside supply gas SA that gas EA reclaims the low humidity of heat extraction to obtain fully, utilize economically.
In addition, among the present invention, be provided with the quite long conveyer belt 50 of length in hothouse 10 inside.In order by zone (zone) thing that is dried that is housed on the conveyer belt 50 to be carried out drying, hothouse 10 inside are divided into a plurality of zones.
Be provided with suction fan 1-1, the 1-2 that carries supply gas SA to conveyer belt 50 directions continuously in each zone ... 1-N (2-1,2-2 ... 2-N), the supply gas SA that carries by above-mentioned suction fan by heater 30 heating after, flow through conveyer belt 50, discharge then.The air that flows through primary drying chamber 10 can not be used as discharge gas EA and directly discharge, but circulates repeatedly in hothouse 10 by each suction fan, flows through heat extraction then and reclaims heat-exchange device 100,101 side by side to the outside.
Below with reference to Fig. 5 some zones of the present invention are described.Flow through supply gas SA that heat extraction reclaims heat-exchange device 100 and flow through conveyer belt 50 after by suction fan 1-1 and heater 30, after the thing that is dried is carried out drying, under the state that its humidity rises, temperature descends, be discharged from from hothouse 10, after being sucked, be heated to uniform temperature by suction fan 1-2 once more by heater 30, flow through conveyer belt 50, thing carries out drying once more to being dried.Its moisture is carried out drying after rising once more, being sucked by suction fan 1-3 once more.Air flows through a plurality of suction fan 1-1,1-2 in the above described manner ... 1-N carries out drying to the thing that is dried, and its humidity raises simultaneously, finally arranges to the outside with high wet condition.
The discharge gas EA that flows through suction fan (1-N) in the above described manner reclaims in the heat-exchange device 100 in heat extraction and transmits heat to extraneous air OA, and temperature height, supply gas SA that humidity is low are continuously flowed into by suction fan 1-1.
In addition, temperature rises when flowing through heater 30 by the supply gas SA that is arranged on another regional heat extraction recovery heat-exchange device 101 under the effect of suction fan 2-1, and temperature reduces in the process of the thing that is dried on dry conveyer belt 50, and then after flowing through hothouse 10 by suction fan 2-2, sucked by suction fan 2-3 once more, repeatedly the thing that is dried is carried out drying.
Flow through a plurality of suction fan 2-1,2-2 by this way ... discharge gas EA behind the 2-N becomes highly humid air, reclaim in the heat-exchange device 101 in heat extraction and to transmit heat, temperature height, supply gas SA that humidity is low are flowed into continuously by suction fan 2-1 to extraneous air OA from the outside.
Among the present invention, heat extraction is reclaimed heat-exchange device 100 and is allowed in discharge gas EA that finishes under the suction fan 1-N effect to discharge behind the drying operation and extraneous air OA generation heat exchange, to the hothouse 10 supply gas SA that supply is higher than external air temperature, relative humidity is lower.
In addition, heat extraction of the present invention is reclaimed heat-exchange device 101 and is allowed in discharge gas EA that finishes under the suction fan 2-N effect to discharge behind the drying operation and extraneous air OA generation heat exchange, to the hothouse 10 supply gas SA that supply is higher than external air temperature, relative humidity is lower.Therefore, reclaim in the heat-exchange device 100,101, produce heat exchange between supply gas SA and the discharge gas EA in each heat extraction.
In addition, among the present invention,, after carrying out drying, can directly not arrange, carry out drying operation but flow into next suction fan 1-2 to the outside by suction fan 1-1 air supplied.After carrying out operation under the above-mentioned suction fan 1-2 effect, air flows into next suction fan 1-3 and carries out drying.By this way, all suction fan 1-1,1-2 in being arranged on a zone ... 1-N supplies air.
The air that 100 of heat extraction recovery heat-exchange devices of the present invention flow through behind the final gettering fan 1-N is arranged to the outside as discharging gas EA, and allow and discharge gas EA and carry out heat exchange with extraneous air OA from the outside, allow the temperature of supply gas SA rise, carry the supply gas SA of high temperature low humidity to suction fan 1-1.
The heat extraction recovery type of this mode is air-breathing, cyclic drying, exhaust process, and each zone with hothouse 10 is that unit carries out respectively.
In addition, among the present invention, at each suction fan 1-1-... 1-N and 2-1 ... downside (2-N), be respectively equipped with the heater 30 that adds hot-air by electric heater or combustion heater, after the supply gas SA that suction fan is sucked was heated to uniform temperature, the thing that is dried to hothouse 10 inside carried out drying circularly.
In the present invention, as Fig. 5～shown in Figure 7, be respectively arranged with division board 51 in the upper and lower side of the conveyer belt 50 of hothouse 10 inside, so that dry air prevents that as far as possible it from flowing to adjacent areas when suction fan effect current downflow.Above-mentioned division board 51 is with the structure that does not hinder conveyer belt 50 and the thing that is dried moves, the upper and lower that is arranged on conveyer belt 50, when above-mentioned conveyer belt 50 moves, can prevent as far as possible that air from moving to conveyer belt 50 moving directions.Promptly, above-mentioned division board 51 is as the criterion with the conveyer belt moving direction, be erected on 90 ° and the 270 ° of directions, prevent that air from moving at the length direction of conveyer belt 50 moving directions or conveyer belt 50, can be divided into space to hothouse 10 inner spaces by each suction fan control.
With the laver drying process is example, is air state in the drying device of the present invention shown in the table 1, and table 2 is contrast tables of prior art and air condition of the present invention and consumption of calorie.By these forms effect of the present invention as can be seen.
Table 1
Wherein: SA: reclaim the supply gas after 80% heat extraction; SA is 1.: the supply gas after the heating;
Table 2
As shown in table 1, in the laver drying process, if air condition is for carrying out 80% heat exchange under 40 ℃ of 5 ℃ of OA and RA, then the temperature of SA is 33 ℃, and the EA temperature that discharges is 12 ℃.Relative humidity is reduced to 5% of SA from 30% of OA.When SA was heated to 45 ℃ that are suitable for drying laver, relative humidity was reduced to 3%, can obtain being very beneficial for dry air conditions.
In addition, as shown in table 2, state (40 ℃ of the temperature of the reflux gas RA that finishes at dry laver, relative humidity 60%, absolute humidity 30g/kg (DA)) under the identical condition, the moisture content amount that the present invention and prior art are evaporated in dry run is respectively 3 and 28g/kg, and drying capacity of the present invention is more than 9 times of prior art.
By contrast institute calorific requirement as can be known, the 1st heater of the present invention institute calorific requirement is 2.9kcal/kg (DA), 2.1kcal/kg (DA) than prior art exceeds 0.8kcal/kg (DA), but institute's calorific requirement is reduced to 1.2kcal/kg (DA) in the process of hothouse inner loop.Therefore, with ventilation volume be 10%, rate of ventilation is to calculate for 10 times, the required total amount of heat of prior art is 2.1*10 time=21kcal/kg (DA), but among the present invention, first institute calorific requirement is 2.9kcal/kg (DA), all the other are for 9 times inner loop, and institute's calorific requirement is 1.2*9=10.8kcal/kg (DA), and required total amount of heat is 13.7kcal/kg (DA).Compared with prior art can save about 35% energy.
Among the present invention, in a zone of above-mentioned hothouse 10, be provided with a heat extraction and reclaim heat-exchange device 100.This zone can as Fig. 8 and shown in Figure 9, be provided with multilayer by vertical direction according to different drying devices, and a plurality of suction fans of right quantity are set in each zone according to actual needs.
Among the present invention, in being formed at a plurality of zones of above-mentioned hothouse 10, be provided with division board 51, ventilation flow passage 10a and inspiratory flow path 10b.Above-mentioned division board 51 is arranged on the upper and lower of conveyer belt 50.Shown in Figure 10 A, 10B, 11,12,13, ventilation flow passage 10a and inspiratory flow path 10b play the effect of air duct.
In addition, according to the position that is provided with of circulation suction fan 20, above-mentioned ventilation flow passage 10a and inspiratory flow path 10b also can have the structure of distortion and the different shape with various angles, rather than simple linear structure.
In addition, Figure 14 is the embodiment schematic diagram of another heat extraction recovery type drying device of the present invention.Reclaim suction and discharge formula drying device for extraneous air heat extraction of the present invention, if supply gas SA is excessive with the air quantity of discharging gas EA, then the volume of heat extraction and recovery device 100 also can be very big.The problem of economic aspects such as huge heat extraction and recovery device 100 or setup fee can appear being difficult to be provided with like this.Therefore, as shown in figure 14, in drying device under the effect of last suction fan 20, among the reflux gas RA that discharges by hothouse 10, make wherein by two-way blast regulator 81 that a part does not flow through heat extraction and recovery device 100, but directly flow to supply gas SA side.
In this case, the part among the reflux gas RA of end drying operation directly flows to supply gas SA side, makes the supply gas SA humidity of No. 1 suction fan that flows to each zone increase, make drying efficiency to reduce.But, for above-mentioned heat extraction and recovery device 100, can reduce the amount of supply gas SA and discharge gas EA, reduce the size of heat extraction and recovery device 100, these all can easily be realized.
In addition, shown in Figure 15,16,17, the present invention can also be applicable to when supply gas SA that heaters such as utilizing heater reclaims heat-exchange device 100 supplies to heat extraction heats the thing direct irradiation microwave that is dried is carried out dry composite drying mode.Here, except that being provided with heater 30, also be provided with magnetron 60 and waveguide pipe 61, the microwave that magnetron 60 is produced shines directly into hothouse 10 by waveguide pipe 61, utilizes the thing that is dried in the above-mentioned hothouse 10 of microwave drying, can carry out rapid draing.
In the present embodiment, the air circulation in the hothouse 10 is identical with the embodiment of front, and the different microwaves that just utilize directly heat the thing that is dried.Therefore, need be provided for driving the power supply 62 of magnetron 60, and the barricade of maskable hothouse 10 inboard microwaves is set.
In addition, in the present embodiment, can produce heat when driving magnetron 60, need cooling magnetron 60.Therefore, can be to the inner supply of magnetron 60 cold gas, and the reflux gas RA that the air that magnetron 60 is discharged is discharged with hothouse 10 discharges by heat extraction recovery heat-exchange device 100, like this can the recovery section heat, be used for drying operation, thereby can reduce energy consumption.
Claims (10)
1. heat extraction recovery type drying device, comprise hothouse, it is characterized in that: described hothouse (10) is divided into a plurality of zones, one heat-exchange device (100/101) and a plurality of suction fan (1-1 to hothouse (10) air-supply are set respectively in each zone, 1-2,1-N/2-1,2-2,2-N), at described each heat-exchange device (100,101) supply gas in after heat exchange (SA) is respectively by first suction fan (1-1/2-1) suction in each zone and by after heater (30) heating, the thing that is dried in the hothouse (10) is carried out drying, flow through adjacent suction fan (1-2 then successively, 1-3,1-N/2-2,2-3,2-N), after flowing through each suction fan, all be heated and the thing that is dried is carried out drying, reclaim heat-exchange device (100/101) by each heat extraction at last and discharge.
2. heat extraction recovery type drying device according to claim 1 is characterized in that: the air entry (11) that is heated and the thing that is dried is carried out the dried gas downstream suction fan that the flow direction is adjacent after outlet (12) is discharged after each air-breathing suction.
3. heat extraction recovery type drying device according to claim 1 is characterized in that: the described thing that is dried is arranged on the conveyer belt (50), and described conveyer belt (50) is arranged to one or more layers.
4. heat extraction recovery type drying device according to claim 1, it is characterized in that: in described hothouse (10), be provided with magnetron (60), the microwave that magnetron (60) produces is fed in the hothouse (10) by waveguide pipe (61), and thing carries out drying to being dried.
5. heat extraction recovery type drying device according to claim 4, it is characterized in that: described magnetron (60) cools off by the cooling air, and the air behind the cooling magnetron (60) reclaims heat-exchange device (100) with the reflux gas (RA) of discharging from hothouse (10) by heat extraction and discharges.
6. according to claim 3 or 4 described heat extraction recovery type drying devices, it is characterized in that: the upper and lower side at the inner conveyer belt (50) of described hothouse (10) is provided with the division board (51) that prevents that air from flowing along conveyer belt (50) moving direction, and described division board (51) is not to hinder be dried thing and the mobile structure setting of conveyer belt (50).
7. according to each described heat extraction recovery type drying device in the claim 1～4, it is characterized in that: be respectively arranged with the ventilation flow passage in each described zone, described ventilation flow passage connects the air outlet (12) that sucked by suction fan (1-1) and carry out behind the drying operation discharging from hothouse (10) and adjacent to the air entry (11) of next suction fan (1-2) of described suction fan (1-1).
8. according to each described heat extraction recovery type drying device in the claim 1～4, it is characterized in that: in each described zone, be respectively arranged with the inspiratory flow path (10b) that connects suction fan, heater (30) and hothouse (10).
9. according to each described heat extraction recovery type drying device in the claim 1～4, it is characterized in that: the part in the reflux gas (RA) of being discharged by hothouse (10) under described suction fan effect directly flows to supply gas (SA) side by two-way blast regulator (81) with the state that does not flow through heat extraction and recovery device (100).
10. according to each described heat extraction recovery type drying device in the claim 1～4, it is characterized in that:, reflux gas (RA) is circulated repeatedly in hothouse (10) inside if reflux gas (RA) humidity that hothouse (10) is discharged is lower than certain value; If the humidity of reflux gas (RA) is higher than certain value, then reclaiming part row suction supply gas (SA) in the outside that heat-exchange device (100) makes reflux gas (RA) by heat extraction, make described supply gas (SA) mix the back with reflux gas (RA), carry out drying in hothouse (10) inner loop.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0033922 | 2010-04-13 | ||
| KR20100033922 | 2010-04-13 | ||
| KR1020100077704A KR101261477B1 (en) | 2010-04-13 | 2010-08-12 | Heat recovery type drying system |
| KR10-2010-0077704 | 2010-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003870A true CN102003870A (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102827504A Pending CN102003870A (en) | 2010-04-13 | 2010-09-16 | Heat-elimination recovery type drying device |
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| Country | Link |
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| CN (1) | CN102003870A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103471373A (en) * | 2013-10-09 | 2013-12-25 | 吉首大学 | Penetrating type reverse-flow drying device |
| CN113251779A (en) * | 2021-06-03 | 2021-08-13 | 厚德食品股份有限公司 | Microwave processing device for poultry egg products |
| CN114963376A (en) * | 2022-05-24 | 2022-08-30 | 珠海格力电器股份有限公司 | Air supply device and adjusting method thereof |
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| CN1766440A (en) * | 2004-10-28 | 2006-05-03 | 三星电子株式会社 | Air interchanger |
| CN1944403A (en) * | 2006-10-23 | 2007-04-11 | 东莞新能源电子科技有限公司 | Process for recovering NMP in lithium cell membrance sheet drying process |
| CN201086053Y (en) * | 2007-09-07 | 2008-07-16 | 何国民 | Painting and coating combined machine |
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| CN1766440A (en) * | 2004-10-28 | 2006-05-03 | 三星电子株式会社 | Air interchanger |
| CN1944403A (en) * | 2006-10-23 | 2007-04-11 | 东莞新能源电子科技有限公司 | Process for recovering NMP in lithium cell membrance sheet drying process |
| CN201086053Y (en) * | 2007-09-07 | 2008-07-16 | 何国民 | Painting and coating combined machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103471373A (en) * | 2013-10-09 | 2013-12-25 | 吉首大学 | Penetrating type reverse-flow drying device |
| CN103471373B (en) * | 2013-10-09 | 2016-02-10 | 吉首大学 | Penetration adverse current drying unit |
| CN113251779A (en) * | 2021-06-03 | 2021-08-13 | 厚德食品股份有限公司 | Microwave processing device for poultry egg products |
| CN114963376A (en) * | 2022-05-24 | 2022-08-30 | 珠海格力电器股份有限公司 | Air supply device and adjusting method thereof |
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Application publication date: 20110406 |