KR20070018545A - Drying apparatus - Google Patents

Abstract

The present invention relates to an electric dryer, comprising: a main body configured to form a closed space in which a door is installed at a front surface thereof, and a heat shield is formed therein; A drying chamber configured to form an accommodating means for accommodating the object to be stored in the lower inner space of the main body; A heat exchange chamber configured to install a heat exchanger for dehumidifying humid air supplied from the drying chamber; It is characterized by consisting of a configuration comprising a blower fan installed between the heat exchange chamber and the drying chamber for operating the forced circulation between the air inside the sealed body between the heat exchange chamber and the drying chamber.

According to the electric dryer of the present invention, the drying chamber and the heat exchange chamber in which the object is stored are sealed so that the outside and the heat shield are made to be continuously dehumidified by the heat exchanger, thereby reducing energy and reducing energy. There is an effect that the drying time is shortened because it only dehumidifies the moisture contained in the dry matter inside quickly.

Electric dryer, heat exchanger

Description

Electric Dryer {DRYING APPARATUS}

1 is a side view showing a schematic structure of an electric dryer according to the present invention.

2 is a front view showing a schematic structure of the electric dryer according to the present invention.

3 is a conceptual view showing a schematic structure of a heat exchanger according to the present invention.

Figure 4 is an enlarged cross-sectional view showing a floodlight installation structure according to another embodiment of the present invention.

<Description of Symbols for Main Parts in Drawings>

110: main body 111: door

120: drying chamber 121: storage means

130: heat exchange chamber 140: heat exchanger

141: evaporator 142: collecting pipe

142a: drain pipe 143: compressor

145: condenser 147: expansion valve

150: blower fan 160: heating means

161: floodlight

The present invention relates to a dryer, and in particular, a drying chamber and a heat exchange chamber in which dry items such as agricultural products or aquatic products are housed in a sealed state to form a heat shield and the outside, thereby minimizing energy loss by performing continuous dehumidification by a heat exchanger. It is about one electric dryer.

Until now, a method of naturally drying with solar heat has been used in order to store agricultural products, aquatic products and the like for a long time.

Recently, as agricultural products and aquatic products have a mass distribution structure, various types of dryers have been proposed for drying a larger amount with the same quality within a short time.

Currently, the most widely used type of dryer is a dryer using a hot air drying method, and includes a box-type drying chamber for storing and placing a dried object on a tray, and separately installing a hot air blower inside the drying chamber. In addition, the hot air generated from the hot air blower is introduced into a drying furnace to dry the dry matter (agricultural products, aquatic products, etc.) stored in the tray.

At this time, the hot air fan is configured to generate a high temperature heat by operating the oil boiler, it is configured to supply the hot air to the drying chamber using a blower.

However, the conventional dryer as described above has a problem in that the quality of the product is significantly lower than that of the natural dried product by drying the dried product with high temperature hot air.

In addition, the conventional dryer has a problem that the drying conditions of the dry matter dried by hot air are not the same because the distance from the hot air blower to the stored position of the dry matter is different. For this reason, there has been a problem in that the position of the stored items to be changed at any time or a separate device for automatically moving the position of the items to be installed.

This conventional technology requires not only an expensive boiler to generate hot air, but also a large energy loss because the supplied hot air cannot be recycled as it evaporates the moisture of the dry matter and is exhausted into the atmosphere outside the drying chamber. have.

An object of the present invention for solving the above problems is to continuously dehumidify by the heat exchanger in a sealed state in which the drying chamber and the heat exchange chamber housed with the object to be made to the outside and the heat cut in order to minimize the energy loss It is to provide an electric dryer to be made.

Another object of the present invention for solving the above problems is that not only the heat energy is discharged to the outside in order to be able to remove only the moisture contained in the dry matter in a short time, the external air does not flow into the electric To provide a dryer.

Another object of the present invention for solving the above problems is to dry the drying at a low temperature (45 ~ 55 ℃) similar to the natural drying in order to improve the processing (drying) quality of the dry To provide.

Another object of the present invention for solving the above problems is to provide an electric dryer equipped with a heat exchanger capable of electric drive in order to be able to easily control the drying conditions according to the temperature of the drying chamber and the object to be dried.

Electric dryer according to the present invention for achieving the above object is provided with a door in the front, the main body to form a sealed space in which the heat and the outside is formed therein; A drying chamber configured to form an accommodating means for accommodating the object to be stored in the lower inner space of the main body; A heat exchange chamber configured to install a heat exchanger for dehumidifying humid air supplied from the drying chamber; It is characterized by consisting of a configuration comprising a blower fan installed between the heat exchange chamber and the drying chamber for operating the forced circulation between the air inside the sealed body between the heat exchange chamber and the drying chamber.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view showing a schematic structure of an electric dryer according to the present invention, FIG. 2 is a front view showing a schematic structure of an electric dryer according to the present invention, and FIG. 3 is a conceptual diagram showing a schematic structure of a heat exchanger according to the present invention. 4 is an enlarged cross-sectional view illustrating a floodlight installation structure according to another embodiment of the present invention.

Electric dryer according to the present invention as shown in the figure constitutes a main body 110, the door 111 is installed on the front.

The main body 110 forms a sealed space in which heat is blocked from the outside, and the sealed space is divided into a drying chamber 120 and a heat exchange chamber 130.

The drying chamber 120 is formed in the lower inner space of the main body 110, and forms a receiving means 121 for accommodating the object to be dried, wherein the receiving means 121 is composed of a plurality of shelves that are detachably installed. Can be.

The heat exchange chamber 130 serves to dehumidify the humid air supplied from the drying chamber 120. The dehumidification action is a compressor 143, a condenser 145, an expansion valve 147, and an evaporator 141. It is made through a heat exchanger 140 consisting of.

In the present invention, in the installation of the heat exchanger 140, as shown in FIG. 1, the evaporator 141 is installed at the inlet of the heat exchange chamber 130, and the condenser 145 is provided at the outlet of the heat exchange chamber 130. It is characterized in that the installation, the evaporator 141 is installed at the inlet of the heat exchange chamber 130 so that the hot and humid air supplied from the drying chamber 120 is in contact with the outer surface of the evaporator 141 of a relatively low temperature to heat exchange Water droplets are formed through the process to be discharged to the outside, and the condenser 145 is installed at the outlet of the heat exchange chamber 130 so that the low-temperature dry air passing through the evaporator 141 has a relatively high temperature on the outer surface of the condenser 145. By contacting with the heat exchange process to form a high temperature dry air to be supplied back to the drying chamber 120 to absorb moisture from the dry matter of the drying chamber 120.

At this time, by installing the blowing fan 150 at the inlet of the heat exchange chamber 130, the high temperature and humid air of the drying chamber 120 to be forcibly transferred to the heat exchange chamber 130, through the heat exchange chamber 130 again the drying chamber Allow air circulation to 120.

In addition, by installing the heating means 160 at the outlet of the heat exchange chamber 130, it is possible to control the temperature of the exhaust air supplied to the drying chamber.

At this time, the temperature of the exhaust air is primarily heated through heat exchange in the condenser 145, it is possible to maintain 45 ~ 55 ℃ similar to the natural dry state by the heating means 160.

Of course, it is preferable to allow the temperature of the exhaust air to be freely controlled according to the type or drying characteristics of the object to be dried. At this time, when the electric heater is used as the heating means 160, it is possible to easily control the drying temperature inside the drying chamber.

In addition, as well as temperature control of the internal air using the heating means 160, a predetermined range of the upper surface of the main body 110 is formed by the light-transmitting window 161 as shown in Figure 4 solar heat inside the heat exchange chamber 130 Can be supplied.

As such, when the light transmission window 161 is formed, the solar heat supplied through the light transmission window 161 increases the air temperature to have a greenhouse effect, thereby maximizing energy efficiency.

Here, the predetermined range in which the floodlight window 161 is installed is preferably limited to a range in which the evaporator 141 is not installed, which increases the internal temperature of the heat exchange chamber 130 but lowers the surface temperature of the evaporator 141. Because it is necessary to maintain.

In addition, the evaporator 141 and the condenser 145 preferably form the contact area with the outside air as wide as possible for the purpose of heat exchange with the outside air, as an example of the preferred embodiment, as shown in FIG. 2. The same fin tube shape can be used.

As shown in the figure, the evaporator 141 and the condenser 145 of the present invention form a cylindrical coolant tube 141a, 145a, and cool in the longitudinal direction along the outer diameter of the coolant tube 141a, 145a. The fins 141b and 145b are formed innumerably, and the cooling fins 141b and 145b may be formed in a screw shape along the outer diameter of the refrigerant pipes 141a and 145a.

Here, the evaporator 141 is provided with a collecting pipe 142 to surround the outer diameter of the refrigerant pipe (141a) and the cooling fins (141b), to collect the water droplets formed on the outer surface of the evaporator (141). In addition, it is preferable to form a drain pipe 142a connected to the outside of the dryer at one end of the collecting pipe 142 so that the collected water is discharged to the outside.

In addition, although the present invention is not shown in the drawings, the dry matter can be dried in a state in which the inside of the dryer is evacuated by using a separate vacuum means. In addition to shortening the energy efficiency, energy efficiency can be improved.

Hereinafter, a drying process using the electric dryer of the present invention having the above configuration will be described.

First, the object to be dried is stored in the drying chamber 120 while the door 111 formed on the front surface of the main body 110 of the present invention is opened. At this time, the drying chamber 120 is provided with a receiving means 121 such as a shelf for storing the dry matter.

The object to be dried may be a variety of objects such as agricultural products or aquatic products, and thus the receiving means 121 may be installed in various forms.

After the dry matter is stored as described above, the door 111 is closed so that the interior of the drying chamber 120 is blocked from outside air, that is, in a sealed state. In the sealed state, heat transfer to the outside is blocked.

More preferably, the inside of the drying chamber 120 may be evacuated using a separate vacuum means (vacuum pump, etc.).

After the storage of the dry item as described above is made, the heat exchange device 140, the blowing fan 150, and the heating means 160 is driven to dry the dry item.

The air inside the drying chamber 120 is supplied into the heat exchange chamber 130 by the blower fan 150, and the supplied air is heat-exchanged on the surface of the evaporator 141 to generate water droplets.

Thereafter, relatively low temperature dried internal air passing through the evaporator 141 passes through the condenser 145. The surface of the condenser 145 is a high temperature state and the internal air is hot dried through a heat exchange process.

At this time, the temperature of the internal air is heated again by using the electric heater 160 so that the drying condition in the natural state is 45 ~ 55 ℃ to be resupply inside the drying chamber 120.

In addition, the dryer of the present invention as described above can be installed and used outdoors, when the predetermined range of the upper surface of the main body 110 is formed as a light transmission window 161 as shown in Figure 4, the light transmission window 161 Solar power supplied through the air temperature is increased to minimize the amount of power used by the electric heater 160 to maximize energy efficiency.

Thereafter, the hot dry air supplied to the drying chamber 120 is circulated and supplied to the heat exchange chamber 130 by passing through a dry matter therein. At this time, the air supplied to the heat exchange chamber 130 is a humid air state in which a large amount of evaporated water is contained in the dry matter, and dehumidification is performed through heat exchange on the surface of the evaporator 141.

A large amount of water droplets formed on the surface of the evaporator 141 is collected in the water collecting pipe 142 and then discharged to the outside through the drain pipe 142a.

The present invention having such a configuration and action has the advantage of contributing to industrial development, such as excellent energy saving effect, shortening the drying time above all.

According to the electric dryer of the present invention having the above configuration, the drying chamber and the heat exchange chamber in which the dry items are stored are sealed so that the outside and the heat shield are made to be continuously dehumidified by the heat exchanger, thereby reducing energy loss. Compared to conventional dryers, there is an effect of achieving 50% or more energy savings.

In addition, the present invention is not only the heat energy is discharged to the outside, but also has a structure that does not flow external air into the inside, the drying time is shortened because it only dehumidify the moisture contained in the dry matter inside quickly There is.

In addition, the present invention is to dry the dried material at a low temperature (45 ~ 55 ℃), to provide a drying environment similar to the natural drying, resulting in the effect of improving the processing (drying) quality of the dried product.

In addition, since the present invention does not have to provide an expensive boiler facility such as a conventional hot air dryer, the facility cost is reduced, and by easily driving the heat exchanger using electricity, it is easy to control the temperature inside the drying room and drying conditions according to the dry matter. It is effective to be.

Claims (9)

A main body configured to form a sealed space in which a door is installed at a front surface, and a heat shield is formed therein; A drying chamber configured to form an accommodating means for accommodating the object to be stored in the lower inner space of the main body; A heat exchange chamber configured to install a heat exchanger for dehumidifying humid air supplied from the drying chamber; A blowing fan installed between the heat exchange chamber and the drying chamber to operate to force circulation of air inside the sealed body between the heat exchange chamber and the drying chamber; Electric dryer comprising a configuration comprising a. The method of claim 1, The heat exchanger is composed of a compressor, a condenser, an expansion valve, and an evaporator. The evaporator is installed at a heat exchange chamber inlet so that high temperature and high humidity air supplied from a drying chamber contacts and heat exchanges with an external surface of a relatively low temperature evaporator. Water droplets are formed to be discharged to the outside, and the condenser is installed at the outlet of the heat exchange chamber so that the low temperature dry air passing through the evaporator is in contact with the outer surface of the condenser at a relatively high temperature to heat exchange to form high temperature dry air. And to be resupplied to the electric dryer. The method of claim 2, The evaporator is an electric dryer characterized in that a number of cooling fins are formed in the longitudinal direction along the outer diameter of the tubular refrigerant pipe. The method of claim 2 or 3, And a water collecting pipe installed to cover the outer diameter of the evaporator to collect water droplets on the outer surface of the evaporator, and to form a drain pipe at one end of the water collecting pipe so that water is discharged to the outside. The method of claim 2, The condenser is an electric dryer characterized in that a number of cooling fins are formed in the longitudinal direction along the outer diameter of the tubular refrigerant pipe. The method of claim 1, And a heating means is formed at the outlet of the heat exchange chamber to heat the exhaust air. The method of claim 1, And a predetermined range of the upper surface of the main body as a light transmission window so that solar heat is supplied into the heat exchange chamber. The method of claim 6, And said heating means is an electric heater. The method of claim 1, And the inside of the main body is evacuated using a separate vacuum means.

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