KR101028641B1 - Multifunctional drying device for agricultural products - Google Patents

Multifunctional drying device for agricultural products Download PDF

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Publication number
KR101028641B1
KR101028641B1 KR1020100012736A KR20100012736A KR101028641B1 KR 101028641 B1 KR101028641 B1 KR 101028641B1 KR 1020100012736 A KR1020100012736 A KR 1020100012736A KR 20100012736 A KR20100012736 A KR 20100012736A KR 101028641 B1 KR101028641 B1 KR 101028641B1
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drying
condenser
evaporator
compressor
drying chamber
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KR1020100012736A
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Korean (ko)
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방승운
김제훈
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방승운
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/03—Drying; Subsequent reconstitution
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/06—Freezing; Subsequent thawing; Cooling
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/04—Freezing; Subsequent thawing; Cooling
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

PURPOSE: A multi-functional apparatus for drying agricultural products is provided to improve the energy consumption efficiency of the apparatus, and to store the agricultural products for a long time. CONSTITUTION: A multi-functional apparatus for drying agricultural products comprises the following: a compressor(20) including a gas-liquid separator(57); an auxiliary condenser(40) or an external condenser(60) passing through a coolant supplied to an evaporator(50); pipes receiving the coolant, and including electric valves(52,53) and expansion valves(55,56); and a drying chamber(10) including an auxiliary heater(32), including blower fans(31,51).

Description

다기능 농산물 건조장치{Multifunctional Drying Device for Agricultural Products}Multifunctional Drying Device for Agricultural Products

본 발명은 다기능 농산물 건조장치에 관한 것으로서, 보다 상세하게는 냉동시스템을 이용하여 필요에 따라 농산물을 건조시키고 아울러 냉장/냉동시킬 수 있는 다기능 농산물 건조장치에 관한 것이다.
The present invention relates to a multifunctional agricultural product drying apparatus, and more particularly, to a multifunctional agricultural product drying apparatus capable of drying and refrigerating / freezing agricultural products as needed using a refrigeration system.

일반적으로 농산물을 건조시키기 위해 태양열을 이용하거나 햇빛이 들지 않으며 통기성이 양호한 장소를 이용하여 건조시키는 이른바 자연건조방식을 채택한다.Generally, so-called natural drying method is used to dry agricultural products by using solar heat or sunlight-free and air-permeable place.

이러한 자연건조방식에 의해 건조된 농산물은 그 조직이 그대로 유지될 수 있어 인공건조 방식에 비해 품질이 우수하며 상품성이 뛰어나 일반적으로 높은 가격으로 판매될 수 있다.Agricultural products dried by such a natural drying method can be maintained at a high price because the organization can be maintained as it is better than the artificial drying method is superior in quality and commercially available.

그러나 이러한 태양열 등을 이용하는 자연건조방식은 기후여건에 따라 품질에 많은 차이를 보일 뿐만 아니라, 많은 건조시간이 소요되며 또한 많은 공간을 차지하게 되어 공간상의 많은 제약을 받는 단점이 있다.However, the natural drying method using such solar heat not only shows a lot of difference in quality depending on the climatic conditions, but also takes a lot of drying time and takes up a lot of space, there is a disadvantage of receiving a lot of space restrictions.

이러한 태양열 등을 이용하는 자연건조방식의 문제를 해결하기 위해 건조기가 제작된 바 있는데 이러한 건조기는 그 내부에 전기히터를 설치하여 열을 공급하여 건조시키는 방식이다.In order to solve the problem of the natural drying method using such solar heat, a dryer has been manufactured. The dryer is a method of drying by supplying heat by installing an electric heater therein.

한편 건조된 농산물을 더욱 장기적으로 보관하기 위해 냉장/냉동이 필요할 수 있으며, 이에 따라 상기와 같은 전기히터 방식의 건조기를 사용하는 경우 건조된 농산물을 장기간 보관하기 위해 냉장/냉동장치를 따로 마련하여야 하는 문제점이 있었다.On the other hand, refrigeration / freezing may be necessary to store dried produce for a longer period of time. Therefore, when using an electric heater type dryer as described above, a refrigeration / freezing device has to be provided separately to store dried produce for a long time. There was a problem.

위와 같은 문제를 해결하기 위해 농산물 건조와 냉장을 겸용할 수 있는 농산물 건조장치가 공개특허공보 제 10-2009-0060109호로 개시된 바 있다.In order to solve the above problems, a agricultural product drying apparatus capable of combining both agricultural drying and refrigeration has been disclosed in Korean Patent Laid-Open Publication No. 10-2009-0060109.

상기 건조장치는 히트펌프방식으로서 건조기로 사용한 경우 농산물이 건조되면서 발생되는 습기를 주기적으로 배기구를 통해 모두 배출시키고 난 다음, 다시 건조실 내부온도를 상승시켜야 하기 때문에 에너지 효율이 크게 저하되는 문제점이 있다.The drying apparatus has a problem in that the energy efficiency is greatly reduced since the moisture generated during the drying of the agricultural products is periodically discharged through the exhaust port when the dryer is used as a dryer as a heat pump, and then the internal temperature of the drying chamber must be increased again.

상기와 같은 문제점을 해결하기 위하여 냉동시스템을 이용하여 농산물을 건조시키고, 이때 발생된 습기도 아울러 제거하는 농산물 건조장치가 공개특허공보 제 10-2009-0115908호로 제안된 바 있다.In order to solve the above problems, a agricultural product drying apparatus for drying agricultural products by using a refrigeration system and removing moisture generated at this time has been proposed in Korean Patent Laid-Open Publication No. 10-2009-0115908.

상기의 건조장치는 도 1에 도시된 바와 같이, 건조실 외부에는 컴프레서(100)와 외부응축기(110-2)가 구비되고, 건조실의 내부에는 증발기(130)와 내부응축기(110-1)가 구비되며, 내외부의 응축기(110-1, 110-2)에 보내지는 냉매의 양은 전자변(170-1, 170-2)을 통해 조절되도록 되어 있다.1, the compressor 100 and the external condenser 110-2 are provided outside the drying chamber, and the evaporator 130 and the internal condenser 110-1 are provided inside the drying chamber. The amount of refrigerant sent to the inner and outer condensers 110-1 and 110-2 is controlled through the electron valves 170-1 and 170-2.

이러한 구조의 건조장치는 건조실 내부에 내부응축기(110-1)와 증발기(130)를 구비하여 내부응축기(110-1)에 의해 건조실 내부의 온도를 상승시키고, 이와 동시에 증발기(130)에 의해 건조실 내부의 습기를 제거하여 건조가 가능하도록 구성되어 있다.The drying apparatus having such a structure includes an internal condenser 110-1 and an evaporator 130 inside the drying chamber to raise the temperature inside the drying chamber by the internal condenser 110-1, and at the same time by the evaporator 130. It is configured to dry by removing moisture inside.

그러나 상기의 건조장치는 건조실 내부에 구비한 응축기의 방열을 이용하여 온도를 높이고 증발기에 의한 흡열을 이용하여 제습함으로써 그 내부의 농산물을 건조시키는 건조기능은 가지고 있으나, 냉장/냉동을 위한 장치가 마련되어 있지 않아 농산물을 건조시킨 후 출하될 때까지 장기간 냉장/냉동 보관이 곤란하다는 문제점이 있다.
However, the drying apparatus has a drying function of drying the agricultural products by raising the temperature by heat dissipation of the condenser provided in the drying chamber and dehumidifying by using endotherm by the evaporator, but a device for refrigeration / freezing is provided. There is a problem that long-term refrigeration / freezing storage until it is shipped after drying the agricultural products is difficult.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 본 발명은 농산물을 건조시키는 건조장치의 기능뿐만 아니라 냉장/냉동장치의 기능도 하며 아울러 에너지 사용효율을 높일 수 있는 다기능 농산물 건조장치를 제공하고자 하는 데에 그 목적이 있다.
The present invention has been made to solve the above problems, the present invention provides a multi-functional agricultural product drying device that can increase the energy use efficiency as well as the function of the refrigeration / freezing device as well as the drying device for drying the agricultural products. The purpose is to do that.

상기와 같은 본 발명의 목적은 건조장치의 냉매유로를 건조모드에서는 압축기, 내부응축기, 보조응축기, 증발기를 차례로 거쳐 압축기로 다시 인입되는 냉매유로로 이루어지도록 하고, 냉동/냉장모드에서는 압축기, 외부응축기, 팽창밸브, 증발기를 차례로 거쳐 압축기로 다시 인입되는 냉매유로로 이루어지도록 구성하는 것에 의해 달성된다.The purpose of the present invention as described above is to make the refrigerant flow path of the drying apparatus consists of the refrigerant flow path which is introduced back into the compressor through the compressor, the internal condenser, the auxiliary condenser, the evaporator in the drying mode, the compressor, the external condenser in the freezing / refrigeration mode And a refrigerant passage, which in turn is led back to the compressor via an expansion valve and an evaporator.

그리고 보조응축기 또는 외부응축기를 거친 냉매는 증발기에 인입되기 전에 2개의 배관으로 나누어지며 이들 배관 각각에는 전자밸브와 팽창밸브가 각각 하나씩 설치되되, 상기 팽창밸브 중 하나의 팽창밸브는 유량조절 타입으로 구성하는 것이 바람직하다.
The refrigerant passing through the auxiliary condenser or the external condenser is divided into two pipes before being introduced into the evaporator. Each of these pipes is provided with one solenoid valve and one expansion valve, and one of the expansion valves has a flow control type. It is desirable to.

본 발명에 따른 다기능 농산물 건조장치는 건조기능 뿐만 아니라 냉장/냉동 기능까지도 구비함으로써 건조 이후에도 농산물을 냉장/냉동 상태로 장기간 보관할 수 있다.Multifunctional agricultural product drying apparatus according to the present invention can be stored for a long time in the refrigerated / frozen state even after drying by having a refrigeration / freezing function as well as a drying function.

또한, 본 발명은 건조모드로 운전될 때 건조실 내부의 습기가 증발기의 표면과 접촉되어 응축수로 응축되어 배출되기 때문에 건조실로부터 습기를 제거하기 위한 공기순환장치와 같은 별도의 장치가 필요하지 않다.
In addition, the present invention does not require a separate device such as an air circulation device for removing moisture from the drying chamber because the moisture in the drying chamber is condensed into the condensed water and discharged in contact with the surface of the evaporator when operating in the drying mode.

도 1은 종래 기술에 따른 건조장치의 사시도이고,
도 2는 본 발명에 따른 다기능 농산물 건조장치의 구성도이며,
도 3은 본 발명에 따른 다기능 농산물 건조장치의 건조모드일 때의 냉매의 흐름도이고,
도 4는 본 발명에 따른 다기능 농산물 건조장치의 냉장/냉동모드일 때 냉매의 흐름도이다.1 is a perspective view of a drying apparatus according to the prior art,
2 is a block diagram of a multifunctional agricultural product drying apparatus according to the present invention,
3 is a flow chart of the refrigerant in the drying mode of the multi-functional agricultural product drying apparatus according to the present invention,
Figure 4 is a flow chart of the refrigerant in the refrigeration / freezing mode of the multifunctional agricultural product drying apparatus according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 구성과 바람직한 실시예를 설명한다.Hereinafter, with reference to the accompanying drawings will be described the configuration and the preferred embodiment of the present invention.

본 발명에 따른 다기능 농산물 건조장치는 도 2에 도시된 바와 같이, 건조실(10)의 외부에 압축기(20)와 보조응축기(40) 및 외부응축기(60)가 구비되고, 건조실(10)의 내부에는 내부응축기(30)와 증발기(50)가 구비된다.Multifunctional agricultural product drying apparatus according to the present invention, as shown in Figure 2, the compressor 20, the auxiliary condenser 40 and the external condenser 60 is provided on the outside of the drying chamber 10, the interior of the drying chamber 10 It is provided with an internal condenser 30 and the evaporator 50.

압축기(20)에 의해 압축된 냉매는 도 2에 도시된 바와 같이 사용자의 선택에 따라 건조실(10) 내부의 내부응축기(30), 건조실(10) 외부의 보조응축기(40) 및 건조실(10) 내부의 증발기(50)를 거쳐 다시 압축기(20)로 흡입되는 하나의 회로(건조회로)와 건조실(10) 외부의 보조응축기(40) 및 건조실(10) 내부의 증발기(50)를 거쳐 다시 압축기(20)로 흡입되는 하나의 회로(냉동/냉장회로)의 2개의 폐회로를 거친다.As shown in FIG. 2, the refrigerant compressed by the compressor 20 is internally condenser 30 inside the drying chamber 10, an auxiliary condenser 40 outside the drying chamber 10, and a drying chamber 10 according to a user's selection. After passing through the evaporator 50 inside again through a circuit (drying circuit) to be sucked into the compressor 20, the auxiliary condenser 40 outside the drying chamber 10 and the evaporator 50 inside the drying chamber 10 again. It goes through two closed circuits of one circuit (refrigeration / refrigeration circuit) which is sucked into the compressor 20.

상기와 같은 냉매유로로 이루어진 본 발명은 사용자가 어떤 냉매유로를 선택하는가에 따라 건조모드와 냉장모드의 2개 운전모드 중 어느 하나의 운전모드로 동작되며 이하에서는 각각의 운전모드에 대해 설명한다.
According to the present invention made of the refrigerant passage as described above, the operation mode is one of two operation modes, a drying mode and a refrigeration mode, depending on which refrigerant passage the user selects. Hereinafter, each operation mode will be described.

먼저 건조모드로 운전되는 경우에 대해 설명하면 이때의 냉매유로는 도 3에 도시된 바와 같이 압축기(20), 내부응축기(30), 보조응축기(40), 증발기(50)를 차례로 거쳐 압축기(20)로 다시 되돌아오는 유로이다.First, a case in which the drying mode is operated will be described. The refrigerant flow path at this time passes through the compressor 20, the internal condenser 30, the auxiliary condenser 40, and the evaporator 50, as shown in FIG. 3. It is the euro which returns to) again.

이를 더욱 상세히 설명하면 먼저 압축기(20)에 의해 압축된 냉매는 전자밸브(35)를 통과한 다음, 건조실(10) 내부의 내부응축기(30)로 인입된다.In more detail, first, the refrigerant compressed by the compressor 20 passes through the solenoid valve 35 and then is introduced into the internal condenser 30 inside the drying chamber 10.

이때 내부응축기(30)로 인입된 냉매는 여전히 고온·고압 상태이기 때문에 이 상태의 냉매가 내부응축기(30)와 유로를 거치면서 건조실(10) 내부로 방열되고 이에 의해 건조실(10) 내부의 온도가 상승된다.At this time, since the refrigerant introduced into the internal condenser 30 is still in a high temperature and high pressure state, the refrigerant in this state is radiated into the drying chamber 10 through the internal condenser 30 and the flow path, whereby the temperature inside the drying chamber 10 is maintained. Is raised.

그리고 내부응축기(30)의 전면 또는 후면에는 송풍팬(31)이 구비되어 있어 이에 의해 고온의 공기가 건조실(10) 내부로 순환됨으로써 건조효율이 향상될 수 있다.In addition, a blower fan 31 is provided on the front or rear surface of the internal condenser 30, whereby hot air is circulated into the drying chamber 10, thereby improving drying efficiency.

또한 내부응축기(30)의 하류측의 건조실(10) 내부에는 보조히터(32)가 구비되어 있어 농산물의 특성에 따라 건조실(10) 내부온도의 상승속도와 건조실(10) 내부의 온도를 조절함으로써 더욱 효과적으로 농산물을 건조시킬 수 있다. 예를 들면 고온에서 건조되는 고추와 같은 농산물을 건조시키는 경우 내부응축기(30)만으로는 건조실(10) 내부를 고추의 건조에 적합한 온도까지 빠른 시간에 상승시키기가 용이하지 않으므로 보조히터(32)를 사용하게 되면 빠른 시간 내에 원하는 온도까지 상승시킬 수 있다.In addition, the auxiliary heater 32 is provided inside the drying chamber 10 downstream of the internal condenser 30, and according to the characteristics of the agricultural products, by adjusting the rising speed of the internal temperature of the drying chamber 10 and the temperature inside the drying chamber 10. You can dry your produce more effectively. For example, in the case of drying agricultural products such as red pepper dried at a high temperature, the auxiliary condenser 30 is not used because the internal condenser 30 alone does not easily raise the drying chamber 10 to a temperature suitable for drying red pepper in a short time. This will increase the desired temperature in a short time.

내부응축기(30)를 통과한 냉매는 건조실(10) 외부의 보조응축기(40)를 통과하게 되는데, 이때 건조실(10) 내부의 온도가 높기 때문에 내부응축기(30)에서 냉매가 완전히 응축되지 않을 수 있고, 채 응축되지 않은 냉매가 팽창밸브(56)에 인입되게 되면 시스템의 효율이 저하되므로 이를 방지하기 위해 본 발명에서는 건조실(10) 외부에 보조응축기(40)를 더 설치하여 혹시 있을 수 있는 응축되지 않은 냉매를 보조응축기(40)에서 완전히 응축시킨다.The refrigerant passing through the internal condenser 30 passes through the auxiliary condenser 40 outside the drying chamber 10. At this time, the refrigerant may not be completely condensed in the internal condenser 30 because the temperature inside the drying chamber 10 is high. In addition, in order to prevent this, when the refrigerant that is not condensed in is introduced into the expansion valve 56, the efficiency of the system is lowered. In the present invention, the secondary condenser 40 is further installed outside the drying chamber 10 to prevent any condensation. Uncondensed refrigerant is completely condensed in the subcondenser 40.

보조응축기(40)에서 완전히 응축된 냉매는 증발기(50)의 전단에 설치되는 팽창밸브(56)에 인입되는데, 이러한 보조응축기(40)와 팽창밸브(56) 사이에는 후술하는 외부응축기(60)와 연결된 냉매배관이 연결된다.The refrigerant completely condensed in the auxiliary condenser 40 is introduced into the expansion valve 56 installed at the front end of the evaporator 50. Between the auxiliary condenser 40 and the expansion valve 56, an external condenser 60 to be described later. The refrigerant pipe connected with is connected.

이에 따라 보조응축기(40)로부터 토출된 고압의 냉매가 외부응축기(60) 쪽으로 흐를 수 있기 때문에 외부응축기(60)의 후단에 체크밸브(62)를 설치함으로써 건조모드시 보조응축기(40)로부터 토출된 냉매가 외부응축기(60)에 역류하여 유입되는 것을 방지한다.Accordingly, since the high-pressure refrigerant discharged from the auxiliary condenser 40 can flow toward the external condenser 60, the check valve 62 is installed at the rear end of the external condenser 60 to discharge from the auxiliary condenser 40 in the dry mode. Prevented refrigerant flows back into the external condenser (60).

보조응축기(40)를 거친 냉매는 증발기(50)에 인입되기 전에 2개의 배관으로 나누어지며 이들 배관 각각에는 전자밸브(52, 53)와 팽창밸브(55, 56)가 각각 하나씩 설치된다.The refrigerant passing through the auxiliary condenser 40 is divided into two pipes before being introduced into the evaporator 50. Each of these pipes is provided with solenoid valves 52 and 53 and expansion valves 55 and 56, respectively.

이때 전자밸브(52, 53)는 회로의 개폐를 담당하며 2개의 팽창밸브(55, 56) 중 하나의 팽창밸브(55)는 냉매의 팽창유량을 조절할 수 있는 타입으로서 냉장/냉동모드일 때 사용되고, 다른 하나의 팽창밸브(56)는 단순히 개폐 타입으로서 건조모드일 때 사용되는데, 이는 건조모드로 동작될 때는 가급적 많은 양의 냉매를 팽창시켜 증발기(50)에 공급함으로써 증발기(50)의 표면온도를 저하시켜 건조실(10) 내부의 공기가 증발기(50)의 표면과 접촉되는 경우 쉽게 응축되도록 하고, 냉동/냉장모드일 때는 냉매의 팽창유량을 조절할 수 있도록 함으로써 건조실(10) 내부의 온도를 희망하는 온도로 적절히 제어하도록 한데 따른 것이다.At this time, the solenoid valves 52 and 53 are in charge of opening and closing of the circuit, and one of the two expansion valves 55 and 56 is used to control the expansion flow rate of the refrigerant. , The other expansion valve 56 is used in the drying mode as a simple opening and closing type, which is operated when the drying mode, the surface temperature of the evaporator 50 by expanding and supplying as much refrigerant as possible to the evaporator 50. When the air in the drying chamber 10 is in contact with the surface of the evaporator 50, the condensation is easily condensed, and in the freezing / refrigeration mode, the expansion flow rate of the refrigerant can be adjusted so that the temperature inside the drying chamber 10 is desired. This is according to the appropriate temperature control.

상기 팽창밸브(56)를 통과한 냉매는 건조실(10) 내부의 증발기(50)를 거치는데 이때 건조실(10) 내부에 존재하는 공기 중의 수분이 증발기(50)의 표면에 접촉하게 되면서 응축되게 된다. The refrigerant passing through the expansion valve 56 passes through the evaporator 50 in the drying chamber 10. At this time, moisture in the air existing in the drying chamber 10 comes into contact with the surface of the evaporator 50 to condense. .

이를 위해 본 발명에서는 응축된 수분이 증발기(50)의 표면을 타고 흘러 실외로 배출될 수 있도록 응축수 배출구(미도시)가 마련되어 있으며 이에 의해 건조실(10) 내부의 수분이 제거된다.To this end, in the present invention, a condensed water outlet (not shown) is provided to allow the condensed water to flow through the surface of the evaporator 50 and be discharged to the outside, thereby removing the water inside the drying chamber 10.

또한 상기 증발기(50)에는 송풍팬(51)이 구비되어 있으나, 건조모드일 때는 건조실(10) 내부의 공기가 증발기(50)의 표면과 접촉되면서 응축되도록 하기 때문에 송풍팬(51)은 운전되지 않는다.In addition, although the blower fan 51 is provided in the evaporator 50, in the drying mode, the blower fan 51 is not operated because the air inside the drying chamber 10 contacts the surface of the evaporator 50 to condense. Do not.

증발기(50)를 거친 냉매는 압축기(20)로 재유입되며, 이때 채 기화되지 않은 액상냉매가 압축기(20)로 흡입되게 되면 압축기(20)가 손상될 우려가 있기 때문에 압축기(20)의 흡입측 전단에 기액분리기(57)를 구비하여 이러한 손상을 방지하는 것이 바람직하다.The refrigerant that has passed through the evaporator 50 is re-introduced into the compressor 20, and the suction of the compressor 20 may occur if the uncooled liquid refrigerant is sucked into the compressor 20, since the compressor 20 may be damaged. It is preferable to provide a gas-liquid separator 57 at the front end side to prevent such damage.

상기와 같은 건조모드 운전은 건조실(10) 내부의 농산물이 충분히 건조될 때까지 반복 수행된다.
The drying mode operation as described above is repeatedly performed until the agricultural products in the drying chamber 10 are sufficiently dried.

다음 냉동/냉장모드로 운전되는 경우에 대해 설명하면 이때의 냉매유로는 도 4에 도시된 바와 같이 압축기(20), 외부응축기(60), 팽창밸브(55), 증발기(50)를 차례로 거쳐 압축기(20)로 다시 인입되는 유로를 가진다.Next, the case of operating in the freezing / refrigerating mode will be described. The refrigerant flow path at this time passes through the compressor 20, the external condenser 60, the expansion valve 55, and the evaporator 50 as shown in FIG. 4. It has a flow path drawn back to (20).

이를 더욱 상세히 설명하면 먼저 압축기(20)에 의해 압축된 냉매는 건조실(10) 외부의 외부응축기(60)로 인입된다. 이때 건조모드일 때 오픈(OPEN) 상태이던 전자밸브(35)는 닫히게(CLOSE) 되고, 외부응축기(60)의 전단에 설치된 전자밸브(65)는 오픈(OPEN) 상태로 된다.In more detail, first, the refrigerant compressed by the compressor 20 is introduced into the external condenser 60 outside the drying chamber 10. At this time, the solenoid valve 35 in the open mode in the drying mode is closed, and the solenoid valve 65 installed at the front end of the external condenser 60 is in the open state.

외부응축기(60)에 의해 냉각된 냉매는 2개의 회로 중 전자밸브(52)와 유량조절이 가능한 타입의 팽창밸브(55)를 구비한 회로를 거쳐 건조실(10) 내부(이때는 실질적으로 냉장실 또는 냉동실 역할을 한다)의 증발기(50)에 인입된다. 이때 냉동/냉장회로를 이루는 전자밸브(52)는 열리고(OPEN), 건조회로를 이루는 전자밸브(53)는 닫히게 된다.The refrigerant cooled by the external condenser 60 passes through a circuit having a solenoid valve 52 and an expansion valve 55 of a flow rate control type among two circuits. Serve) to the evaporator 50. At this time, the solenoid valve 52 constituting the refrigeration / refrigeration circuit is opened (OPEN), the solenoid valve 53 constituting the drying circuit is closed.

그리고 외부응축기(60)와 전자밸브(52) 사이에는 전술한 바와 같이 보조응축기(40)와 연결된 냉매배관이 연결되는데 이에 따라 외부응축기(60)로부터 토출된 고압의 냉매가 보조응축기(60) 쪽으로 흐를 수 있기 때문에 보조응축기(40)의 후단에 체크밸브(42)를 설치함으로써 냉동/냉장모드시 외부응축기(60)로부터 토출된 냉매가 보조응축기(40)에 역류하여 유입되는 것을 방지한다.In addition, a refrigerant pipe connected to the auxiliary condenser 40 is connected between the external condenser 60 and the solenoid valve 52, so that the high-pressure refrigerant discharged from the external condenser 60 is directed toward the auxiliary condenser 60. Since the check valve 42 is installed at the rear end of the auxiliary condenser 40, the refrigerant discharged from the external condenser 60 in the freezing / refrigerating mode may be prevented from flowing back into the auxiliary condenser 40.

상기 팽창밸브(55)를 통과한 냉매는 건조실(10) 내부의 증발기(50)를 거치는데 이때 건조모드시와 달리 송풍팬(51)을 동작시킴으로써 건조실(10) 내부의 온도를 신속하고 효과적으로 내린다.The refrigerant passing through the expansion valve 55 passes through the evaporator 50 in the drying chamber 10. At this time, unlike the drying mode, the coolant operates the blower fan 51 to quickly and effectively lower the temperature inside the drying chamber 10. .

증발기(50)를 거친 냉매는 압축기(20)로 재유입되며, 이때 흡입측 전단에 설치된 기액분리기(57)에 의해 기체상태의 냉매만 압축기(20)에 유입되게 된다.The refrigerant passing through the evaporator 50 is re-introduced into the compressor 20, in which only the gaseous refrigerant is introduced into the compressor 20 by the gas-liquid separator 57 installed at the front end of the suction side.

상기와 같은 냉동/냉장모드 운전은 건조실(10) 내부 온도가 희망하는 온도가 될 때까지 반복 수행된다.
The freezing / refrigerating mode operation as described above is repeatedly performed until the temperature inside the drying chamber 10 reaches a desired temperature.

상기한 바와 같이 본 발명은 건조실(10) 내부에 내부응축기(30), 증발기(50)를 동시에 구비하고, 외부에는 보조응축기(40)와 외부응축기(60)를 구비함으로써 하나의 시스템에 의해 필요에 따라 농산물을 건조시키거나 냉동/냉장시킬 수 있어 경제적이고 효율적이며, 아울러 소요공간을 대폭 줄일 수 있는 장점이 있다.As described above, the present invention is required by one system by simultaneously providing the internal condenser 30 and the evaporator 50 inside the drying chamber 10 and the external condenser 40 and the external condenser 60 at the same time. As a result, the agricultural products can be dried or frozen / refrigerated, which is economical and efficient, and the required space can be greatly reduced.

10 : 건조실 20 : 압축기
30 : 내부응축기 31, 41, 51, 61 : 송풍팬
32 : 보조히터 35, 52, 53, 65 : 전자밸브
40 : 보조응축기 42, 62 : 체크밸브
50 : 증발기 55, 56 : 팽창밸브
57 : 기액분리기 60 : 외부응축기10: drying chamber 20: compressor
30: internal condenser 31, 41, 51, 61: blowing fan
32: auxiliary heater 35, 52, 53, 65: solenoid valve
40: auxiliary condenser 42, 62: check valve
50: evaporator 55, 56: expansion valve
57: gas-liquid separator 60: external condenser

Claims (4)

건조실(10)의 외부에는 압축기(20)와 보조응축기(40) 및 외부응축기(60)가 구비되고, 건조실(10)의 내부에는 내부응축기(30)와 증발기(50)가 구비되어 사용자의 선택에 따라 건조모드와 냉동/냉장모드로 동작되는 건조장치에 있어서,
상기 압축기(20)의 흡입측 전단에는 기액분리기(57)가 구비되며,
상기 보조응축기(40) 또는 외부응축기(60)를 거친 냉매는 증발기(50)에 인입되기 전에 2개의 배관으로 나누어지며 이들 배관 각각에는 전자밸브(52, 53)와 팽창밸브(55, 56)가 각각 하나씩 설치되되,
상기 팽창밸브(55, 56) 중의 하나의 팽창밸브(55)는 유량조절 타입으로 구성되고,
상기 건조모드는 압축기(20), 내부응축기(30), 보조응축기(40), 팽창밸브(56), 증발기(50)를 차례로 거쳐 압축기(20)로 다시 인입되는 냉매유로로 이루어지고,
상기 냉동/냉장모드는 압축기(20), 외부응축기(60), 팽창밸브(55), 증발기(50)를 차례로 거쳐 압축기(20)로 다시 인입되는 냉매유로를 이루도록 구성되는 것을 특징으로 하는 다기능 농산물 건조장치.
A compressor 20, an auxiliary condenser 40, and an external condenser 60 are provided outside the drying chamber 10, and an internal condenser 30 and an evaporator 50 are provided inside the drying chamber 10 so as to be selected by a user. In the drying device operating in the drying mode and freezing / freezing mode according to,
A gas-liquid separator 57 is provided at the suction side front end of the compressor 20.
The refrigerant passing through the auxiliary condenser 40 or the external condenser 60 is divided into two pipes before being introduced into the evaporator 50. Each of these pipes has solenoid valves 52 and 53 and expansion valves 55 and 56. Each one installed,
One expansion valve 55 of the expansion valve (55, 56) is configured of a flow rate control type,
The drying mode is composed of a refrigerant flow channel which is introduced back into the compressor 20 through the compressor 20, the internal condenser 30, the auxiliary condenser 40, the expansion valve 56, the evaporator 50 in sequence,
The refrigeration / refrigeration mode is a multi-functional agricultural product, characterized in that configured to form a refrigerant flow path which is introduced back into the compressor 20 through the compressor 20, the external condenser 60, expansion valve 55, the evaporator 50 in order Drying equipment.
삭제delete 청구항 1에 있어서,
상기 건조실(10)의 내부응축기(30)의 건조실(10)의 하류측에는 건조모드일 때 가동되는 보조히터(32)가 구비되는 것을 특징으로 하는 다기능 농산물 건조장치.
The method according to claim 1,
The downstream side of the drying chamber 10 of the internal condenser 30 of the drying chamber 10, characterized in that the auxiliary heater 32 which is operated in the drying mode is provided with a multifunctional agricultural product drying apparatus.
청구항 1 또는 청구항 3의 어느 한 항에 있어서,
상기 건조실(10)의 내부응축기(30)와 증발기(50)의 각각에는 송풍팬(31, 51)이 구비되고, 건조모드인 경우에는 내부응축기(30)의 송풍팬(31)은 동작되고, 상기 증발기(50)의 송풍팬(51)은 정지되며, 냉장모드일 경우에는 내부응축기(30)의 송풍팬(31)은 정지되고, 상기 증발기(50)의 송풍팬(51)은 동작되는 것을 특징으로 하는 다기능 농산물 건조장치.The method according to claim 1 or 3,
Blowing fans 31 and 51 are provided in each of the internal condenser 30 and the evaporator 50 of the drying chamber 10, and in the drying mode, the blowing fan 31 of the internal condenser 30 is operated. The blower fan 51 of the evaporator 50 is stopped, and in the refrigeration mode, the blower fan 31 of the internal condenser 30 is stopped, and the blower fan 51 of the evaporator 50 is operated. Multifunctional agricultural product drying apparatus characterized in.
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Publication number Priority date Publication date Assignee Title
KR20150098339A (en) * 2014-02-20 2015-08-28 강철호 Cold Storage a storehouse and its control method
KR101570763B1 (en) 2015-05-26 2015-11-20 (주)수성쿨테크 Drying device for agriculture and marineproducts with low-temperature and freezing function
KR101793638B1 (en) * 2015-10-26 2017-11-08 (주)주신식품 Red pepper drier

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KR100415684B1 (en) 2001-09-24 2004-01-24 쥴히터(주) A heat pump type drying machine and cold-storage room
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Publication number Priority date Publication date Assignee Title
KR20150098339A (en) * 2014-02-20 2015-08-28 강철호 Cold Storage a storehouse and its control method
KR101589805B1 (en) 2014-02-20 2016-02-12 강철호 Cold Storage a storehouse and its control method
KR101570763B1 (en) 2015-05-26 2015-11-20 (주)수성쿨테크 Drying device for agriculture and marineproducts with low-temperature and freezing function
KR101793638B1 (en) * 2015-10-26 2017-11-08 (주)주신식품 Red pepper drier

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