KR20120110313A - Dehumidifing dryer of agricultural products - Google Patents

Abstract

PURPOSE: A dehumidification type agriculture product dryer capable of improving drying efficiency and marketability is provided to remove the moisture from agriculture products and medical herbs by freeze-liquefying steam. CONSTITUTION: A dehumidification type agriculture product dryer comprises the following: a drying chamber(10) including an internal place for mounting trays(13) to store agriculture products, an air suction damper(14), and an air discharging damper(15); a dehumidifier(20) installed on one upper side of the drying chamber for freeze-liquefying steam generated from a drying process of the agriculture products for removing the moisture; a compressor(40) compressing a refrigerant passed through the dehumidifier; a heat radiator(50) installed on one lower side of the drying chamber for discharging heat from the refrigerant and heating internal air; a blowing fan(30) circulating the internal air from the dehumidifier to the heat radiator and the drying chamber by force; and an infrared ray heater(60) applying infrared ray heat to the heated air.

Description

Dehumidifing dryer of agricultural products

The present invention relates to a dehumidifying dryer for drying agricultural products, herbal medicines, and the like. More specifically, the air circulated from the radiator (condenser) to the drying chamber by applying a heat pump to the dryer to release the heat of the refrigerant In order to dry the agricultural products or herbal medicines by heating and to liquefy the water vapor generated by the drying process in the dehumidifier (evaporator) that performs the cooling operation to remove the moisture to perform the dehumidification process, especially hot air circulated from the radiator to the drying chamber The present invention relates to a dehumidifying agricultural dryer that increases the drying efficiency and commerciality by optimally creating a drying environment by increasing the temperature by applying far-infrared heat to the air and gently purifying the air.

Generally, agricultural products such as red pepper, mushroom, ginseng, or herbal medicines are mostly dried in order to prevent deterioration in the sale or distribution process, and to be preserved for a long time. There is a method of drying, or a method of artificially drying by using a dryer equipped with a burner or electric heater.

The method of natural drying depending on the sunlight or shade in the above is the most preferable drying method in consideration of the merchandise, but the situation is affected by weather changes and takes a long time to dry, as well as cumbersome and labor-intensive, recently Mostly, artificial methods using a dryer are used.

Conventional dryers are configured to make high temperature hot air using an electric heater or burner, and circulate by supplying hot air to a drying chamber in which agricultural products or herbal medicines are loaded, and to dry by evaporating moisture contained in agricultural products or herbal medicines, As the generated water vapor is not completely removed and circulated by mixing with hot air, there is a problem in that the circulating air is dehydrated due to high temperature and high humidity, and heat loss is increased.

That is, hot air heated by an electric heater or burner is supplied to the drying chamber to circulate and evaporate the moisture contained in the agricultural products or the herbal medicines, and then dried, heated again, and then recycled to the drying chamber. As the humidity rises, the drying efficiency is lowered, and when the hot air mixed with water vapor is exhausted to the outside, relatively low temperature outside air is sucked, causing heat loss and increasing drying costs.

Therefore, in recent years, a dehumidifying dryer using a heat pump system has been proposed to reduce drying costs and increase the commerciality of agricultural products or herbal medicines. The dehumidifying dryer has an evaporator, a compressor, a condenser, and an expansion valve. In the heat pump method to discharge the heat of the refrigerant from the condenser to warm the air circulated to the drying chamber, the water vapor generated by the drying process in the drying chamber liquefied in the evaporator to remove moisture, domestic patent No. 10-0386295 (Room dehumidification dryer for agricultural and marine products), Patent No. 10-0869425 (Dehumidification dryer) has been proposed.

The dehumidifying dryer proposed in the prior art heats the internal air circulated to the drying chamber by using the heat of the refrigerant discharged from the condenser of the heat pump to dry the agricultural product or the herbal medicine, and the steam generated by the drying process in the drying chamber is a heat pump Water is removed by cooling and liquefying in the evaporator, and then the internal air is heated again in the condenser to recirculate the hot air into the drying chamber, whereby the low humidity hot air is recirculated to the drying chamber, resulting in high drying efficiency and relatively low maintenance and drying costs. Do.

However, the above-mentioned prior art uses heat of the refrigerant emitted from the condenser as a heat source for heating the hot air circulated to the drying chamber, so that the temperature of the hot air is relatively low, so that drying time takes longer for agricultural products or herbal medicines containing a large amount of moisture. In addition, as the internal air is continuously circulated through the condenser, the drying chamber, and the evaporator, the internal air is not smooth and rough, and various heavy metals and bacteria remain, so that the drying environment is not optimally maintained.

The present invention has been made to improve the problems caused by the conventional dehumidifying dryer, by applying a heat pump system having a dehumidifier (evaporator), a compressor, a radiator (condenser), expansion valve as a main configuration and installing a far infrared heater Heats the air circulated to the drying chamber by releasing the heat of the refrigerant from the radiator of the heat pump to dry the agricultural products or the herbal medicines, while removing the moisture by cooling and liquefying the water vapor generated by the drying process in the drying chamber in the dehumidifier. The main object of the present invention is to provide a dehumidified agricultural product dryer that applies far-infrared heat to the hot air circulated in a high temperature, increases the temperature to a high temperature, gently purifies the air, and removes various residual heavy metals and bacteria to create an optimal drying environment. will be.

The present invention is to realize the desired object as described above,

A drying chamber having an internal space in which a farm containing agricultural products is loaded and provided with an intake damper and an exhaust damper; A dehumidifier installed at an upper side of the drying chamber to remove water by cooling and liquefying water vapor generated by a drying process of agricultural products; A compressor for compressing the refrigerant via the dehumidifier; A radiator installed at a lower side of the drying chamber and dissipating heat of a refrigerant via a compressor to warm internal air; A blowing fan for forced circulation of internal air from the drying chamber to the drying chamber through the dehumidifier and the radiator; And a far-infrared heater installed at a lower part of the drying chamber and applying far-infrared heat to hot air heated from a radiator.

According to an embodiment of the present invention, by applying a heat pump (heat pump) system to the dryer and installing a far-infrared heater, by dissipating the heat of the refrigerant from the radiator of the heat pump to warm the air circulated to the drying chamber to produce agricultural products or herbal medicines, etc. While drying, the water vapor generated by the drying process in the drying chamber is cooled and liquefied in the dehumidifier to remove moisture, thereby providing an effect of increasing drying efficiency and commerciality.

In particular, the embodiment of the present invention by applying the far-infrared heat to the hot air circulated from the radiator of the heat pump to the drying chamber to increase the temperature of the hot air, while reducing the drying time and gently purifying the air, by removing the various heavy metals and bacteria remaining It is to provide the effect of creating an optimal drying environment.

1 is a perspective view showing a dryer according to an embodiment of the present invention.
2 is a cross-sectional view showing an installation state of a dryer according to an embodiment of the present invention.
3 is a cross-sectional view showing an operating state of a dryer according to an embodiment of the present invention.
Figure 4 is a side cross-sectional view showing an installation state according to an embodiment of the present invention.
Figure 5 is a plan sectional view showing an operating state according to an embodiment of the present invention.
6 is a sectional view of principal parts of a far-infrared heater according to an embodiment of the present invention;

The main point in the embodiment of the present invention is that the heat pump is applied to the dryer, so that the heat from the radiator to heat the air circulated to the drying chamber by releasing the heat of the refrigerant to dry the agricultural products or herbal medicine, etc. In order to perform the dehumidification process by cooling and liquefying, and to shorten the drying time by applying far-infrared heat to the hot air circulated to the drying chamber, to purify the air smoothly, and to remove various heavy metals and bacteria to create an optimal drying environment.

Next, looking at the main configuration of the dehumidifying agricultural product dryer 100 in accordance with an embodiment of the present invention, the inner space is loaded with the farm plate 13 containing the agricultural products and the intake damper 14 and the exhaust damper 15 is installed A drying chamber 10, a dehumidifier 20 for cooling and liquefying water vapor generated by the drying process of the agricultural product in the drying chamber 10, and a compressor 40 for compressing a refrigerant passing through the dehumidifier 20. And a radiator 50 for releasing heat of the refrigerant passing through the compressor 40 to warm internal air, and from the drying chamber 10 to the drying chamber 10 through the dehumidifier 20 and the radiator 50. And a blower fan 30 for forcibly circulating internal air, and a far-infrared heater 60 for applying far-infrared heat to hot air heated from the radiator 50.

In the main configuration of the drying chamber 10 as shown in Figures 1 to 3, the interior space can be configured in a rectangular container (Container) form to have a closed structure, the internal air of the drying chamber 10 to the outside An intake damper 14 and an exhaust damper 15 are respectively provided at an upper portion thereof to exhaust or suck external air into the inner space, and an intake fan and an exhaust fan are respectively provided at the intake damper 14 and the exhaust damper 15. Can be installed.

The drying chamber 10 is a drying space in which a farm 13 containing agricultural products or herbal medicines is loaded up and down, and an apparatus space in which a dehumidifier 20, a blowing fan 30, a compressor 40, a radiator 50, and the like are installed. In the above, the drying space is provided relatively wider than the apparatus space, and is installed on one side of the drying chamber 10 on the lower bottom surface.

In the drying space provided in the drying chamber 10, a ventilation path 11 is installed vertically from the bottom surface on both inner wall surfaces and a middle portion thereof, and a plurality of channels at regular intervals up and down between the ventilation paths 11 are provided. (13) are stacked, and a plurality of blow holes 12 are formed on the air passage 11 so as to be located between the up and down piles 13.

Therefore, when hot air is supplied into the air blower 11 through the bottom space of the drying chamber 10, the inside of the tray 13 containing agricultural products or herbal medicines through the plurality of air blowers 12 formed on the air blower 11. Hot air is supplied to the drying process.

Meanwhile, the dehumidifying agricultural product dryer 100 according to the embodiment of the present invention is a dehumidifier 20, a compressor 40, a radiator 50, and a heat pump system having a main configuration as an expansion valve. Dehumidifier 20 is a low-temperature, low-pressure refrigerant absorbs the surrounding heat to perform a cooling action, the compressor 40 compresses the refrigerant via the dehumidifier 20 to a high temperature and high pressure, the radiator 50 is a compressor At 40, the heat of the refrigerant compressed to high temperature and high pressure is discharged to the outside, and the expansion valve (not shown in the drawing) lowers the refrigerant via the radiator 50 to low temperature and low pressure to the dehumidifier 20. It functions to circulate.

The dehumidifier 20 performing the cooling operation in the heat pump system is installed across the upper part of the apparatus space partitioned in the drying chamber 10 so as to be located at an upper side of the drying chamber 10 as shown in FIGS. 2 to 4 in the drawing. The drain pipe 21 is connected to the outside of the drying chamber 10 so as to discharge the liquefied water by the cooling action.

The dehumidifier 20 cools and liquefies the water vapor generated by the drying process of the agricultural product or the herbal medicine contained in the tray 13 in the drying chamber 10 to liquefy it to remove moisture from the circulating air, where the water is collected. The discharged water is discharged to the outside of the drying chamber 10 through the drain pipe 21.

In addition, the blower fan 30 is installed to be positioned below the dehumidifier 20 in the device space partitioned on one side of the drying chamber 10, and the blower fan 30 is provided in the partition 31 installed across the device space. Attached is installed.

The blower fan 30 is a function of forcibly circulating the internal air of the drying chamber 10. When the blower fan 30 is operated, a strong suction force and a blowing force act, so that the inner air of the drying chamber 10 has a dehumidifier ( After being sucked through 20, it is circulated into the drying chamber 10 through the bottom space of the drying chamber 10 and the air passage 11.

In addition, the compressor 40 for compressing the refrigerant via the dehumidifier 20 at high temperature and high pressure in the heat pump system is preferably installed on the bottom surface of the equipment space partitioned on one side of the drying chamber 10, and the circulation process of the internal air. It can be installed if there is no obstacle in the.

On the other hand, the heat radiator 50 for dissipating the heat of the refrigerant to the outside in the heat pump system, as shown in Figure 2 to 5, in the lower portion of the equipment space partitioned in the drying chamber 10 to be located on the lower side of the drying chamber 10 It is installed across and heats the internal air circulated by releasing heat of the refrigerant compressed at high temperature and high pressure from the compressor 40 to the outside.

Since the radiator 50 emits heat of the refrigerant to the outside, when the internal air of the drying chamber 10 is blown to the bottom space of the drying chamber 10 through the blower fan 30, the radiator 50 passes through the radiator 50. Heat exchange causes internal air to circulate.

Therefore, the heat pump system applied to the dryer 100 according to the embodiment of the present invention performs dehumidification by liquefying water vapor by the cooling action of the refrigerant in the dehumidifier 20, and radiates the heat of the refrigerant to the outside from the radiator 50. By heating the internal air circulated to the drying chamber 10 performs a drying process of agricultural products or herbal medicines.

In addition, in the embodiment of the present invention, one or more far-infrared heaters 60 are installed on the bottom bottom surface of the drying chamber 10 to apply far-infrared heat to the hot air heated from the radiator 50, where the far-infrared heater 60 is shown in the drawings. As shown in FIG. 3, far-infrared heat is applied to the hot air circulated from the radiator 50 to the drying chamber 10 to increase the temperature of the hot air while smoothly purifying the internal air circulated to the drying chamber 10.

As far as is known, far infrared rays are irradiated to the human skin with infrared rays having a wavelength of 25 μm or more and penetrates to the depth of 100 μm from the surface of the skin. It is known to be effective in promoting metabolism and revitalizing cell tissues, and is also effective in removing heavy metals in the air, deodorizing, preventing mold growth, dehumidification, and air purification.

Therefore, by applying the far-infrared heat to the heated hot air while passing through the radiator 50 in the far-infrared heater 60, not only increases the temperature of the hot air circulated to the drying chamber 10 but also removes heavy metals, deodorizes, prevents mold propagation, and air purification. Due to the effect of circulating hot air gently purifies.

In the far-infrared heater 60, as shown in Figure 6, the heating coil 61 is built into the heating tube 62 to generate heat by power supply, and emits far infrared rays to the outer peripheral surface of the heating tube 62 Far-infrared paint or far-infrared radiation material is applied to form the far-infrared coating layer 63.

In the far infrared heater 60, one or more heating tubes 62 in which the far infrared coating layer 63 is formed may be installed. When the heating coil 61 generates heat by power supply, the far infrared rays are radiated to the outside from the far infrared coating layer 63. .

Looking at the operation process of the dehumidifying agricultural product dryer 100 according to an embodiment of the present invention having such a configuration, first, the control of the controller in a state in which the dry (13) containing the agricultural product or herbal medicine that is dried in the drying chamber 10 When the compressor 40 constituting the furnace heat pump system and the expansion valve operate, the refrigerant having a low temperature and low pressure circulates through the dehumidifier 20 to perform a cooling action, and the compressor 40 is compressed to a high temperature and high pressure state. The coolant circulates to the radiator 50 to release the heat of the coolant to the outside, and at the same time, the blower fan 30 is operated to pass through the dehumidifier 20 and the radiator 50 from the drying chamber 10 and into the drying chamber 10 again. Forced air circulation

The drying air in which the internal air circulated by the operation of the blower fan 30 is heated while passing through the radiator 50, and then the tray 13 is loaded through the bottom space of the drying chamber 10 and the air blower 11. 10, the drying process is performed because the water is circulated. The water vapor generated by the drying process is cooled and liquefied while passing through the dehumidifier 20 in the upper part of the drying chamber 10, and the dehumidified internal air is radiated again. Heated while passing through and then recirculated into the drying chamber 10, the water liquefied in the dehumidifier 20 is discharged to the outside of the drying chamber 10 through the drain pipe 21.

Therefore, the water vapor generated during the drying process in the dehumidifier 20 constituting the heat pump is cooled and liquefied to remove water, and then the internal air is heated in the radiator 50 to circulate the dry hot air into the drying chamber 10, thereby providing drying efficiency. Increase the shorten the drying time and reduce the drying cost.

On the other hand, the far-infrared heat is applied to the heated hot air while passing through the radiator 50 in the far-infrared heater 60 installed on the bottom surface of the drying chamber 10 to increase the temperature of the hot air circulated to the drying chamber 10 as well as to smooth it. The drying time is shortened and the drying environment is optimally created.

The preferred embodiments of the present invention have been described above with reference to the present invention, and are not limited to the above embodiments, and those skilled in the art through the above embodiments do not depart from the gist of the present invention. Can be implemented in a variety of changes.

10: drying chamber 11: blower
12: blowhole 13: dumping
14: intake damper 15: exhaust damper
20: dehumidifier 21: drain pipe
30: blower fan 40: compressor
50: radiator 60: far infrared heater
61: heating coil 62: heating tube
62: far infrared coating layer

Claims (2)

A drying chamber 10 having an inner space in which the farm 13 containing agricultural products is loaded and provided with an intake damper 14 and an exhaust damper 15;
A dehumidifier 20 installed at an upper side of the drying chamber 10 to remove water by cooling and liquefying water vapor generated by a drying process of agricultural products;
A compressor (40) for compressing the refrigerant via the dehumidifier (20);
A radiator 50 installed at one lower portion of the drying chamber 10 and dissipating heat of the refrigerant via the compressor 40 to warm internal air;
A blowing fan (30) for forcibly circulating internal air from the drying chamber (10) to the drying chamber (10) via the dehumidifier (20) and the radiator (50);
And a far-infrared heater (60) installed at a lower portion of the drying chamber (10) and applying far-infrared heat to hot air heated from a radiator (50). The method of claim 1, further comprising:
Far-infrared heater 60 is a dehumidification type, characterized in that the heating coil 61 is built into the heating tube 62 to generate heat by power supply, and the far-infrared coating layer 63 is formed on the outer circumferential surface of the heating tube 62. Produce dryers.

Images