WO2010024552A2

WO2010024552A2 - Dryer

Info

Publication number: WO2010024552A2
Application number: PCT/KR2009/004624
Authority: WO
Inventors: 진금수
Original assignee: Jin Kum-Soo
Priority date: 2008-08-26
Filing date: 2009-08-20
Publication date: 2010-03-04
Also published as: WO2010024552A3; KR20100024550A; KR101037296B1; JP2012501430A

Abstract

The present invention relates to a dryer, and more particularly, to an agricultural and marine product dryer using a heat pump system that dries agricultural and marine products or the like while alternately performing high temperature drying processes and low temperature drying processes using a heat pump system, thus preventing agricultural and marine products from being discolored and improving the flavor of the products. The dryer of the present invention includes: a drying cabinet (10) having a main body (11) with a drying air generating chamber (13) formed at one side of the interior of the main body and a drying chamber (14) formed at the other side of the interior of the main body such that carrier-type shelves (15a, 15b) are removably inserted into the drying chamber (14), and air delivering passages (16a, 16b, 16c) are formed between and at both sides of the carrier-type shelves; a dehumidifying means (30) having a dehumidifying chamber (31) formed in the upper portion of the main body (11) such that an endless moisture-absorbing cloth (32) is rotatable on the drying chamber (14) and in the dehumidifying chamber (31) by driving means (33); and a heat pump system (40) having an evaporator (54), a condenser (51), and a suction fan (56) arranged in the drying air generating chamber (13), an outdoor heat exchanger (47) disposed at the dehumidifying chamber (31) such that the outdoor heat exchanger (47) is exposed to outdoor air, and an indoor heat exchanger (44) arranged in the endless moisture-absorbing cloth (32).

Description

Drying device

The present invention relates to a drying apparatus, and more particularly, to a drying apparatus such as agricultural and marine products using a heat pump system.

Conventionally, the drying of agricultural and marine products is carried out by drying at room temperature, which is repeated by solar heat during the day and left in the air at night, and maintains its original color and matures by leaving it in the air for a long time. It has a good taste, but it does not only harm the hygiene by depositing foreign substances (yellow dust, etc.) on the dry matter during drying, but also after industrial society, the dry amount of the dry matter is increased, the speed of drying is required, and the productivity of the conventional drying method is reduced. Artificial drying is the main focus to improve.

The above-mentioned artificial drying is a method of storing moisture in a drying chamber, supplying hot air to the drying chamber, or generating hot air from the drying chamber to heat the air in the drying chamber to lower relative humidity to evaporate moisture contained in agricultural and marine products.

The inventors and applicants of the present invention have conducted many studies on artificial drying methods such as agricultural and marine products using a heat pump system, and have proposed a dryer and a cold storage described in Patent Document 1.

The dryer and refrigerating warehouse is formed by dividing the exhaust chamber, the circulation passage and the dry refrigerator compartment into the casing in order, and installing an outdoor heat exchanger on the side wall of the exhaust chamber and an indoor heat exchanger on the bottom side of the drying compartment. A circulation circuit is formed between the refrigerating chambers via an indoor heat exchanger, an exhaust damper is provided in the exhaust chamber side diaphragm, an external air preheating means is formed above the case, and a dehumidifying agent is installed in the circulation circuit. The dryer and refrigerating warehouse allow the indoor heat exchanger to act as a condenser to dry the dry matter placed on the trolley rack by the heat of condensation, and the air containing moisture, which has finished drying the dry matter, is returned to the drying chamber through the circulation passage. Dehumidified by the dehumidifying agent when supplied to, while the dried items are left in the drying room as it is By a heat exchanger acts as an evaporator by lowering the temperature in the drying chamber to the ever to the laundry stored in a refrigerator.

Patent Document 1; KR 10-0226679 (B1)

However, the dryer and refrigerated warehouse using the heat pump system is environmentally friendly, and after drying the agricultural and aquatic products in the same place, it is possible to quickly dry the agricultural and aquatic products, increase the efficiency, and simplify the structure. Although there is an advantage in reducing the logistics cost, the dry matters will be discolored and tasteless by being left at a high temperature until the drying is completed.

The present invention is to correct the above problems, while maintaining the high temperature drying and low temperature drying alternately and continuously by using a heat pump system to perform the drying of agricultural and marine products, etc. to prevent discoloration, to provide a drying device with a good taste It aims to provide.

In order to achieve the above object, the present invention provides a drying air forming chamber on one side of the inside of the main body, and a drying chamber formed on the other side of the drying air generating chamber to insert the trolley shelf; A dehumidifying means formed on an upper portion of the main body to install an endless type absorbent cloth in the upper portion of the drying chamber and the dehumidifying chamber so as to be rotated by a driving means; The heat pump system includes an evaporator, a condenser and a suction fan in the dry air generating chamber, an outdoor heat exchanger exposed to the outside air on the other side of the dehumidification chamber, and an indoor heat exchanger on one side of the endless moisture absorbent fabric of the dehumidification chamber. It is made up.

In another aspect, the present invention provides a drying chamber in which a dry air generating chamber is formed on one side of the main body, and a drying chamber is formed on the other side of the dry air generating chamber to install a multi-stage conveyor; Dehumidifying means installed in the upper part of the drying chamber and the dehumidifying chamber so as to rotate the endless type absorbent cloth by the driving means; The heat pump system includes an evaporator, a condenser and a suction fan in the dry air generating chamber, an outdoor heat exchanger exposed to the outside air on the other side of the dehumidification chamber, and an indoor heat exchanger on one side of the endless moisture absorbent fabric of the dehumidification chamber. It is made up.

As described above, according to the present invention, the high temperature air is dried in the condenser during high temperature drying, the low temperature air is generated in the evaporator during low temperature drying, and the high temperature air and the low temperature air are continuously supplied at a constant cycle in succession to the bogie rack or the multi-stage conveyor. It is possible to maintain a good color and to maintain a good taste at low temperature drying without fading.

In addition, the air containing the stagnant moisture in the drying chamber is quickly discharged by a moisture absorbent cloth during drying of the dry matter to quickly dry the dry matter, increase the drying efficiency, and prevent the foreign matter from adhering to the dry matter. It will not hurt.

1 is a cross-sectional view of a first embodiment of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is an enlarged view of a hygroscopic cloth of a first embodiment of the present invention;

4 is a configuration diagram of a heat pump system according to a first embodiment of the present invention.

5 is a cross-sectional view of a second embodiment of the present invention.

1 is a cross-sectional view of a first embodiment of the present invention, Figure 2 is a cross-sectional view taken along the line AA of Figure 1, Figure 3 is an enlarged view of the absorbent fabric of the first embodiment of the present invention, Figure 4 is a first embodiment of the present invention It is a block diagram of a heat pump system.

The present invention is roughly divided into a drying chamber (10), a dehumidifying means (30), and a heat pump system (40).

The drying chamber 10 is provided with a door 12 on one side (front) of the main body 11 made of a hexahedron, etc., the drying air generating chamber 13 of the high temperature and low temperature on the inner side of the main body 11 And forming a drying chamber 14 on the other side of the drying air generating chamber 13 to draw out one or more bogie-type shelves (two in the drawing) 15a and 15b in the drying chamber 14. The

air pressure passages

16a, 16b, and 16c are formed between the

trolley shelves

15a and 15b and inserted into each other so that the high temperature generated in the dry air generating chamber 13 or The low temperature dry air is conveyed to the

trolley shelves

15a and 15b.

And the

fan

17a, 17b, 17c is provided in the lower part of the said

air pressure passage

16a, 16b, 16c of the bottom of the drying chamber 14, and the drying air is carried out by the trolley | bogie shelf 15a, 15b. ) To evenly dry the product.

In addition, a plurality of holes 18 communicating with the

air pressure passages

16a, 16b, and 16c are formed on both side walls of the trolley-shaped

shelves

15a and 15b, thereby providing the

air pressure passages

16a, 16b, and 16c. ) To supply the dry air to the inside of the trolley-shaped lathes (15a) and (15b), and the guide plates (19a) (19b) (20a) in the lower part of the air conveying passage (16a) (16b) (16c). (20b) is installed back and forth to facilitate the maintenance of the right position when inserting or withdrawing the trolley-shaped shelves (15a) (15b) into the drying chamber 14, and to be able to quickly insert and withdraw.

In addition, the guide plate (19a), (19b), (20) and (21) to smoothly pump the dry air generated in the dry air generating chamber 13 to the air pressure passage (16a) (16b) (16c) A plurality of distribution holes (h) for the installation, and casters 21 are installed on the bottom of the trolley-shaped

shelves

15a and 15b to insert and withdraw the trolley-

shaped shelves

15a and 15b into the drying chamber 14. When it is easy to operate with a small force when the air flow passage (22a) (22b) is formed.

The dehumidifying means 30 forms a dehumidifying chamber 31 on the upper part of the main body 11 to install an endless type absorbent cloth 32 in the upper part of the drying chamber 14 and the dehumidifying chamber 31 to drive the means ( And a heat exchanger installed in a fan 57 installed on one side of the endless moisture absorbent cloth 32 to be described later. After drying by the heat of condensation of 44, it is to be discharged into the atmosphere.

Belts

34a and 34b are provided on both sides of the endless type absorbent fabric 32 to improve rotation of the absorbent fabric 32, and the absorbent fabric In (32), dehumidification efficiency is improved by dispersing moisture absorbents 35 such as zeolite and brine.

The heat pump system 40 converts the basic refrigeration cycle 41 into a compressor 42, a four-way valve 43, an indoor heat exchanger 44, a receiver 45, an expansion valve 46, an outdoor heat exchanger ( 47 is connected in order to the refrigerant conduit 48, and the four-way valve 43 and the compressor 42 are formed by connecting the refrigerant suction conduit 49, the compressor 42 of the refrigerant conduit 48 The condenser 51 by connecting the bypass refrigerant conduit 52 between the and four-way valves 43, and connecting the second refrigerant conduit 53 to the receiver 45 and the refrigerant suction conduit 49. The low-temperature drying expansion valve 55 and the evaporator 54, the fan 56, the evaporator 54 and the condenser 51 are installed in the dry air generating chamber 13, and the dehumidification chamber ( The indoor heat exchanger 44 is installed together with the fan 57 inside one end of the endless type moisture absorbent cloth 32 of the 31, and the outdoor heat exchanger 47 is provided with a fan on the other side of the dehumidification chamber 31. 58) Slave to the outside with The refrigerant gas compressed by the compressor 42 in the condenser 51 at the time of high temperature drying is made by flowing the refrigerant in the solid arrow line at high temperature drying, and continuously flowing the refrigerant in the dotted line at the time of low temperature drying. Condensation to produce high temperature air (eg, 35 to 80 ° C.), and at low temperature drying, the refrigerant gas is evaporated in the evaporator 54 and the inside of the drying chamber 14 is cooled to low temperature (eg, −10 to 20 ° C.) by the evaporation heat. Inside and outside), and when operated as described above, the indoor heat exchanger 44 functions as a subcooled condenser when generating hot air and a condenser when generating low temperature air.

The heat pump system 40 also includes a compressor outlet of the refrigerant conduit 48, an inlet of the bypass refrigerant conduit 52, a receiver connection of the second refrigerant conduit 53, and a high temperature drying of the refrigerant conduit 48. Solenoid valves S1, S2, S3, and S4 are provided at the outlet of the receiver respectively, and the solenoid valves S2 and S4 are opened at high temperature by a timer or the like, and the solenoid valves S1 at low temperature are dried. (S3) is opened at an arbitrary set time interval.

Reference numerals

59a, 59b are check valves, 60a, 60b, and 60c are dampers, the dampers 60a are for ventilation of the dehumidification chamber 31, and the dampers 60b are for adjusting the temperature and pressure of the drying chamber 14. The damper 60c is for the air bypass of the drying chamber 14, and a dehumidification plate 65 is installed on the outer surface of the damper 60a to dehumidify when the humidity of the air is high.

In addition, 61a-61h is a seal | block which isolates between the

trolley shelves

15a, 15b and the drying chamber 14, and the

moisture absorption cloth

32, 62 is a tray, 63a-63e is a guide shaft, and 64 is a condensate receiver. .

In the first embodiment of the present invention as described above, the solenoid valves S2 and S4 are opened during high temperature drying, and the compressor 42 is driven after the four-way valve 43 is operated so that the refrigerant flows in the solid arrows. The high temperature and high pressure refrigerant gas compressed by the lower surface of the compressor 42 is condensed in the condenser 51, and the hot air generated by the heat of condensation is transferred to the air pressure passage 16a by the

fans

17a, 17b, and 17c. The dry items are dried at a high temperature by being supplied to the dry items placed on the tray 62 of the trolley-shaped

shelves

15a and 15b via 16b and 16c, while the solenoid valves S1 and S3 are dried at a low temperature. When the 4-way valve 43 is operated so that the refrigerant flows in the arrow virtual line, and the compressor 42 is driven, the high-temperature / high-pressure refrigerant gas compressed by the compressor 42 is transferred to the outdoor heat exchanger 47. After condensation, it collects in the receiver 45 and passes through the second refrigerant conduit 53 to expand the low-temperature drying valve. 55, the air sucked into the suction fan 56 while being expanded in the evaporator 54 and cooled by the evaporation heat when the refrigerant evaporates in the evaporator 54 is cooled, and the cooled low-temperature air is the same as that of the high temperature drying. In this case, the dried product is supplied to the dried material at a constant cycle (for example, dried persimmons for 3 hours of high temperature drying and 2 hours of low temperature drying (aging) alternately).

On the other hand, when the high temperature drying and the low temperature drying are alternately and continuously performed at a predetermined cycle as described above, the air which has finished drying in the drying chamber 14 by evaporation of moisture contained in the dry matter contains a large amount of moisture, The air containing a large amount of water is absorbed by the endless type absorbent cloth 23 at the same time as the upper portion of the drying chamber 14 and supplied to the evaporator 54 and the condenser 51 by the suction force of the suction fan 56, When the damper 60b is supplied together with the outside air and the moisture absorbing cloth 23 is rotated and positioned in the dehumidification chamber 31, the indoor heat exchanger 44 installed inside one side of the moisture absorbing cloth 23. The dehumidification (drying) of the hot air heated by the condensation heat generated when the refrigerant liquid is supercooled to the outdoor heat exchanger 47 is repeated to improve dehumidification in the drying chamber 14, while Dry matter as above When dried outside temperature is released in the outdoor heat exchanger 47 by the hot air at the time of high temperature drying low to the atmosphere and facilitate the evaporation of the refrigerant gas improves the coefficient of performance of the heat pump system being to which the drying efficiency increases.

5 is a cross-sectional view of a second embodiment of the present invention, in which the same components as those of the first embodiment are denoted by the same reference numerals, and detailed descriptions thereof are omitted, and the difference from the first embodiment in the second embodiment is a drying chamber ( There is only a difference in installing the multi-stage conveyor 115 in 14).

In the second embodiment, the air pressure passage 130 and the suction passage 131 are formed at both sides of the drying chamber 14, and the air pressure passage 130 has a plurality of air pressure through holes 132 toward the drying chamber 14 side. It is formed, and the discharge passage hole 133 is formed in the suction passage 131.

The multi-stage conveyor 115 rotates the

endless belts

116a, 116b, 116c, 116d and 116e of the means horizontally with the driving means (including the drive shaft and the motor) D and the driven shaft F. The dry matter supplied from the inlet 117 to the top endless belt 116a is dried by dry air and installed in order to fall to the lower

endless belts

116b, 116c, 116d, 116e and 116e, As in the first embodiment, the high temperature drying and the low temperature drying are alternately performed and then discharged to the outlet 118.

As described above, the

endless belts

116a, 116b, 116c, 116d, and 116e may be intermittently rotated when the object to be dried is dried.

The first and second embodiments of the invention described above insert the

trolley racks

15a, 15b into the drying chamber 14, or

endless belts

116a, 116b, 116c of the means as a multi-stage conveyor 115. Although the installation of 116d and 116e was demonstrated, it is not limited to the above-mentioned, In particular, the multistage conveyor 115 can use a well-known transfer dryer.

Claims

A drying chamber formed at one inner side of the main body, and a drying chamber formed at the other side of the drying air generating chamber to insert a bogie-type shelf; A dehumidifying means formed on an upper portion of the main body to install an endless type absorbent cloth in the upper portion of the drying chamber and the dehumidifying chamber so as to be rotated by a driving means; The heat pump system includes an evaporator, a condenser and a suction fan in the dry air generating chamber, an outdoor heat exchanger exposed to the outside air on the other side of the dehumidification chamber, and an indoor heat exchanger on one side of the endless moisture absorbent fabric of the dehumidification chamber. Composed Dryer
A drying chamber in which a dry air generating chamber is formed on one inner side of the main body, and a drying chamber is formed on the other side of the dry air generating chamber to install a multi-stage conveyor; Dehumidifying means installed in the upper part of the drying chamber and the dehumidifying chamber so as to rotate the endless type absorbent cloth by the driving means; The heat pump system includes an evaporator, a condenser and a suction fan in the dry air generating chamber, an outdoor heat exchanger exposed to the outside air on the other side of the dehumidification chamber, and an indoor heat exchanger on one side of the endless moisture absorbent fabric of the dehumidification chamber. Composed Dryer
An air pressure passage is formed between and on both sides of the trolley rack, and a fan is provided at a lower portion of the air pressure passage at the bottom of the drying chamber, and air is provided between the bottom of the trolley rack and the bottom of the drying chamber. Drying Device Forming Distribution Channel
According to claim 2, The multi-stage conveyor is installed in the center of the drying chamber by rotating the endless belt of the means horizontally by the drive means to be dried to be supplied to the top endless belt to the endless belt at the bottom of the drying chamber, Drying device with air pressure passage and suction passage on both sides
The drying apparatus according to claim 1, wherein a guide plate is provided below the air pressure passage.
The drying apparatus according to claim 1 or 2, wherein belts are provided on both sides of the endless moisture absorbent fabric.
The heat pump system according to claim 1 or 2, wherein the heat pump system connects a basic refrigeration cycle to a compressor conduit, a four-way valve, an indoor heat exchanger, a receiver, an expansion valve, and an outdoor heat exchanger in order with a refrigerant conduit. The compressor is connected to the refrigerant suction conduit, and a bypass refrigerant conduit is connected between the compressor and the four-way valve to install a condenser, and a second refrigerant conduit is connected to the receiver and the refrigerant suction conduit to dry at low temperature. Drying device by installing expansion valve and evaporator
The drying apparatus according to claim 1 or 2, wherein a moisture absorbent is dispersed in a moisture absorbent fabric.