KR101585563B1 - decompression drying machine using near-infrared ray - Google Patents

Abstract

The present invention relates to a drying apparatus for drying air on a tray by circulating air in a drying chamber, the drying apparatus comprising: an upper partition wall formed in an upper portion of a drying chamber where the laundry is dried to form an upper air circulation space; A blowing fan installed at a rear side of the upper partition air circulation chamber for blowing room air to a front air circulation chamber, a drying chamber, and a rear air circulation chamber rearward of the drying chamber through an upper air circulation chamber; An evaporator and a condenser installed between the rear air circulation chamber and the blowing fan; And a near infrared ray generating device installed between the trays on which the laundry is dried and radiating near infrared rays as an object to be dried.
In the present invention, by using near-infrared rays, only the dried material can be heated by radiant heat without heating the air to maintain the proper temperature for removing moisture of the dried material, and the temperature of the air introduced into the evaporator is not affected, The drying ability of the drying chamber can be further improved and the internal air naturally produced by the moisture increase in the drying chamber can be discharged to the outside while maintaining a constant pressure to fundamentally block the influx of harmful components, It is possible to solve the inconvenience of infiltration of harmful substances and the need of manpower due to the inflow of outside air due to the opening and closing because it is not necessary to change the position of the dried material in the middle of drying by one-way drying method, It can be used not only in dry but also in low temperature warehouse (3 ~ 8 ℃). .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a decompression drying machine using a near-

More particularly, the present invention relates to a near infrared ray cold air pressure reduced-pressure dryer, and more particularly, to a near-infrared ray cold air reduced-pressure dryer that uses a near infrared ray to heat only the dried material to radiant heat without heating the air to maintain an optimum temperature for removing moisture of the dried material, It is possible to keep the condensation performance of the evaporator at an optimum level by not influencing the circulating air temperature in the drying chamber by the radiant heat system of the near infrared rays which can hinder the function of the drying room, The present invention relates to a wind pressure reduction dryer.

Generally, agricultural products such as red pepper, tobacco, mushroom, medicinal materials, and aquatic products such as fish, dried fish and seaweed are generally used for a long time. Such agricultural products are likely to be easily decayed due to high moisture content. do. In recent years, machines using a high temperature heat to dry have been widely used, for example, Korean Patent Laid-Open Nos. 10-2008-0087430 and 10-0896422.

The above-mentioned Japanese Patent Application Laid-Open No. 10-2008-0087430 discloses a drying apparatus for agricultural and marine products, which has a plurality of shelves in a main body opened and closed by a door, and supplies hot air to a hot line and a blower, comprising: A circulation channel means in which a central duct, a wall duct, and an upper duct are communicated to supply hot air to the plurality of trays simultaneously; Control means provided with a transmitter and a regulator on an upper portion of the main body and displaying a current state with an external monitoring panel; And auxiliary exhaust means installed on the other surface of the main body to exhaust hot air before opening the door.

In addition, Japanese Patent Application No. 10-0896422 has a plurality of drying chambers in a main body, and a blowing fan for circulating heated air and a hot-wire chamber to which hot-wire is installed are installed in an upper portion of the drying chamber, Wherein a plurality of flow holes are formed in the inner panel so that the heated air flows into the drying chamber, the dryer comprising: And a condenser and a compressor for circulating the refrigerant through the refrigerant pipe are installed on the upper portion of the main body. In order to dry vegetables or aquatic products, the hot wire of the drier is operated, When the dryer is not used, the compressor is operated in a state in which the hot wire is turned off Section, it is possible to use a freezer to allow users to take advantage of the dryer than many purposes.

However, since all of these prior arts use a single blower to simultaneously supply the heated air to a plurality of flow paths, dry air is not smoothly delivered to the object to be dried at the end of the flow path, And there is a problem in that the moisture content of the dried object is not satisfactorily lowered. In order to prevent the drying of the laundry due to moisture, the drying air must be heated to such an extent that the moisture is evaporated, so that the inside of the drying chamber becomes excessively high and the drying property, that is, the agricultural and marine products, there was. As described above, since the heated air can not be delivered to the end of the flow path at a certain amount, and since the blowing speed is slow, the moisture generated from the object to be dried moves along the dry air to the end portion of the flow path at the start point of the flow path. There is a problem in that the drying speed of the drying object becomes very slow due to a weak supply of moisture and low temperature air at the end portion. Accordingly, only a short-length dryer guarantees a proper quality. In case of a long-length dryer, it is necessary to change the position of the laundry to be dried at a certain time, so that the operation is troublesome and the drying time becomes long There is a problem that the drying cost also increases.

In order to solve this problem, an apparatus for removing moisture in the air and blowing air constantly to the object to be dried, while increasing the pressure of the air in the drying chamber, The drying apparatus includes a partition wall 44 which is spaced apart from one side wall of the drying chamber 40 and forms a front air circulation chamber 46, A plurality of blowing openings 52 formed in the partition wall 44 forming the front air circulation chamber 46 so as to correspond to the positions of the tray 20, A first blower 56 installed in the air blowing port 52 of the front air circulation chamber 46 and a second blower 56 provided in front of the air blowing port 52 for heating air for each tray 20, A first damper 58 for uniformly supplying the liquid, A first cooling coil 62 and a first on coil 64 having a first drain D1 formed on the lower side of the drying chamber 40 and spaced apart from the wall surface in order from the partition wall side, An upper partition wall 44 forming an upper air circulation chamber 42 connecting the rear air circulation chamber 48 formed between the first on coil 64 and the wall surface and the front air circulation chamber 46, An air outlet 80 formed at one side of the drying chamber 40 and in which a third damper 82 and an air blower 84 are installed in order from the inside and an air inlet 70 provided in the front air circulation chamber 46 Pressure air, cold / hot air drying apparatus. " And the patent was registered as No. 10-0991931.

However, in such a conventional increase / decrease pressure cold / warm air drying apparatus, there is a possibility that foreign substances or germs may flow into the apparatus due to the inflow of outside air through the air inlet, and a large amount of power is consumed There is a problem in that maintenance costs are incurred and that the trays on which the objects to be dried are placed due to the drying at a high temperature of 45 占 폚 or more are required to change their positions after a certain time elapses.

In addition, the conventional increase / decrease pressure cold / hot air drying apparatus raises the temperature of the dried product by heating the air to a high temperature of 45 ° C or higher to remove moisture from the dried product, while the air temperature is high, There was a problem with difficulty.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide an air conditioner capable of maintaining the proper temperature for removing moisture of a dried product by heating only the dried product with radiant heat, The condensation performance of the evaporator can be optimally maintained, thereby improving the drying ability of the drying chamber. In addition, it is possible to discharge the inside air naturally produced by the increase of moisture in the drying chamber to the outside while maintaining a constant pressure, It is possible to fundamentally block inflow and to prevent the infiltration of harmful substances and the hassle of manpower required due to the inflow of outside air due to opening and closing because it is not necessary to change the position of the dried material in the middle of drying by the one- It is not only drying in various types of temperature and humidity, (3 ~ 8 ℃) it is an object to provide a near infrared cold wind a vacuum dryer can be used also.

In order to achieve the above object, the present invention provides a drying apparatus for circulating air in a drying chamber to dry an object to be dried on a tray,

An upper partition wall positioned above the drying chamber where the laundry is dried to form an upper air circulation chamber to be space-divided;

A blowing fan installed at a rear side of the upper partition air circulation chamber for blowing room air to a front air circulation chamber, a drying chamber, and a rear air circulation chamber rearward of the drying chamber through an upper air circulation chamber;

An evaporator and a condenser installed between the rear air circulation chamber and the blowing fan; And

And a near-infrared ray generating device installed between the trays on which the laundry is dried and radiating near-infrared rays with the laundry.

The tray on which the drying object is dried is axially rotated in place by the turning force of the rotation motor.

The tray, on which the laundry is dried,

A base plate on which a plurality of pieces are stacked on the upper and lower sides and on which the objects to be dried are seated;

A circular inner cylinder which surrounds and supports the support plate at both ends and upper and lower ends;

A case enclosing the circular inner cylinder from the outside and having a roller at a lower end thereof;

Upper and lower rotary shafts formed vertically so as to be rotatable with respect to the upper and lower ends of the circular inner cylinder; And

And a pivoting motor that is connected to any one of the upper and lower pivot shafts so as to be rotatable about an axis.

A pressure control damper installed outside the evaporator or the condenser to discharge a predetermined amount of the internal air to the outside when a pressure inside the drying chamber is increased due to moisture evaporated during drying of the drying object and to block a predetermined internal pressure when the pressure is reached; There is a further inclusive feature.

As described above, according to the present invention, by using near infrared rays, it is possible to maintain the proper temperature for moisture removal of the dried material by heating only the dried material without radiant heat and without affecting the temperature of the air flowing into the evaporator, It is possible to improve the drying ability of the drying chamber by optimally maintaining the performance, and it is possible to fundamentally block the inflow of harmful components by discharging the inside air naturally generated by moisture increase in the drying room while maintaining a constant pressure. , It is possible to solve the troubles of penetration of hazardous materials and manpower required due to the inflow of outside air due to opening and closing since it is not necessary to change the position of the dried material in the middle of drying by one-way drying method due to the tray with the external tray, It can be used not only for drying but also for low temperature warehouse (3 ~ 8 ℃) There.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

1 is a front sectional view of an operation state of a vacuum cleaner of the present invention,
FIG. 2 is a front view of a main portion showing a tray of a near-infrared cold /
3 is a plan view showing a tray of a near infrared ray cold air pressure reducing dryer of an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the user, the intention or custom of the operator, and the like.

Therefore, it goes without saying that the definition should be based on the contents throughout this specification.

The near infrared ray cold wind reducing dryer of the present invention is a drying apparatus for drying air on the tray 50 by circulating air in the drying chamber 13 and a drying apparatus for separating the drying chamber 13 from the upper air circulation chamber 11 A partition wall 10 and a blowing fan 20 for blowing air into the drying chamber 13 through the air circulation chamber 11. An evaporator 30 for removing moisture from the inside air through the drying chamber 13, A condenser 31 for keeping the temperature of the removed inside air constant by heat, a near-infrared ray generator 40 for drying the laundry on the tray 50 by natural heat under radiant heat, And a pressure regulating damper 60 for extracting the inside air and maintaining the pressure of the drying chamber 13 constant.

The upper partition wall 10 forms an upper air circulation chamber 11 which is located above the drying chamber 13 where the laundry is dried to be space-divided.

The air blowing fan 20 is installed on the rear side of the upper air circulation chamber 11 of the upper partition wall 10 to direct the room air through the upper air circulation chamber 11 to the front air circulation chamber (12), the drying chamber (13), and the rear air circulation chamber (14), which is the rear side of the drying chamber (13).

The evaporator 30 and the condenser 31 are installed between the rear air circulation chamber 14 and the blowing fan 20 so that the evaporator 30 first removes the moisture of the air passing through the drying chamber 13 And moisture is removed, and the internal air is kept at a constant temperature by opening through the condenser 31. That is, if necessary, it is maintained at 3 to 8 ° C when used as a low temperature warehouse, and 18 to 25 ° C when used as a drying chamber.

The near-infrared ray generator 40 is installed between the trays 50 on which the laundry is to be dried, and irradiates the laundry with a near-infrared radiation rod 41 that emits near-infrared rays so that the temperature of the air is not increased Only the desiccant is dried. Accordingly, it is possible to easily adjust the temperature at which the moisture of the dried material is removed, and the condensation performance of the evaporator 30 can be easily and optimally maintained, thereby improving the drying ability.

The tray 50 on which the object to be dried is rotated is rotated in place by a turning force of a tilting motor 56. The tray 50 is provided with a plurality of pieces stacked on the upper and lower sides to seat the object to be dried, (55) which surrounds the circular inner cylinder (51) from the outside and has a roller (58) at the lower end, and a case (55) which surrounds the circular inner cylinder (51) An upper and lower rotary shafts 53 and 54 vertically rotatable by the case 55 and a rotary motor 56 connected to either one of the upper and lower rotary shafts 53 and 54 by a belt 57, .

The pressure regulating damper 60 is connected to the outside of the evaporator 30 or the condenser 31 to increase the pressure inside the drying chamber 13 due to moisture evaporated during drying of the laundry, To the outside of a certain amount, and automatically shut off when a predetermined internal pressure is reached.

The present invention solves the problems of conventional dryers (hot-air dryer, freeze-vacuum dryer, cold air dryer, sprinkler infrared dryer), and while taking advantage of the advantages, the air heat source of air circulated inside the dryer cools the moisture of the evaporator The temperature of the inside of the drying chamber 13 is maintained at a low temperature of 18 to 25 占 폚 while taking advantage of the near infrared rays of infrared rays of a short wavelength transmitted to the heat wavelength, To maximize the condensation action of the evaporator (cold coil), thereby improving the quality of the dried material and greatly reducing the drying time. At this time, it is preferable that the condensed water of the evaporator 30 is naturally discharged to the outside through the drain pan 30a at the lower part, and is discharged without flowing backward through the one-way valve 30b.

The present invention can dry a freezer of a conventional cold air dryer with a condition of 2/3 of the capacity, and can easily and conveniently prepare a dry product by using a tray 50 of a movable rotary type, a variety of dryers such as a small size and a large size, Drying effect can be obtained, and it is possible to dry at low temperature by discharging the low heat of low temperature of 18 to 25 ° C, thereby minimizing the loss of taste and nutrition of the dried product. Also, various materials such as vegetables, seafoods, seaweeds, And can be used as a low-temperature warehouse when not used as a drying chamber.

10: upper partition 11: upper air circulation chamber
12: front air circulation chamber 13: drying chamber
14: rear air circulation chamber
20: blowing fan
30: Evaporator 31: Condenser
40: near-infrared ray generator 41: near-infrared ray radiation rod
50: Tray 51: Circular inner tube
52: base plate 53, 54:
55: Case 56:
57: belt 58: roller
60: Pressure regulating damper

Claims (4)

An upper partition wall positioned above the drying chamber where the laundry is dried to form an air circulation chamber to be space-divided, an air blowing fan for blowing air for air circulation, an evaporator and a condenser provided between the air circulation chamber and the blowing fan, A drying apparatus for drying an object to be dried on a tray, including a near-infrared ray generating apparatus for emitting near-infrared rays,
A pressure control damper installed outside the evaporator or the condenser to discharge a predetermined amount of the internal air to the outside when a pressure inside the drying chamber is increased due to moisture evaporated during drying of the drying object and to block a predetermined internal pressure when the pressure is reached; Further comprising a near-infrared cold / hot air pressure reducing dryer.
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