KR100837505B1 - Waste heat recovery system of agricultural product dryer using gas burner - Google Patents

Waste heat recovery system of agricultural product dryer using gas burner Download PDF

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Publication number
KR100837505B1
KR100837505B1 KR1020070004775A KR20070004775A KR100837505B1 KR 100837505 B1 KR100837505 B1 KR 100837505B1 KR 1020070004775 A KR1020070004775 A KR 1020070004775A KR 20070004775 A KR20070004775 A KR 20070004775A KR 100837505 B1 KR100837505 B1 KR 100837505B1
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South Korea
Prior art keywords
waste heat
heat recovery
gas burner
recovery tank
exhaust gas
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KR1020070004775A
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Korean (ko)
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김현성
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김현성
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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
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A23B7/0205—Dehydrating; Subsequent reconstitution by contact of the material with fluids, e.g. drying gas or extracting liquids
    • 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
    • A23B7/005—Preserving by heating
    • A23B7/0053—Preserving by heating by direct or indirect contact with heating gases or liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2300/00—Processes
    • A23V2300/10—Drying, dehydrating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85—Food storage or conservation, e.g. cooling or drying

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

Abstract

An apparatus for recovery of waste heat in apparatus for drying agricultural products by using a gas burner is provided to maximize heat efficiency and to minimize drying costs. An apparatus for recovery of waste heat in apparatus for drying agricultural products using a gas burner comprises: a drying room(2) removably mounted with a shelf(3) and drying agricultural products; a heating room(7) divided from the drying room by a barrier wall(4) with an air circulation hole(10a,10b) and installed with a heat exchanger(6); a gas burner(5) to heat the heat exchanger; and a blower(9) divided from the gas burner and heating room by a horizontal barrier wall(8) and circulating air, wherein a waste heat recovery tank(13) is installed at the end of a flue tube(11) connected to the heat exchanger. An exhaust gas inlet hole(17) is installed on one side of the waste heat recovery tank to allow inflow of the recovered high temperature exhaust gas. A damper(14) is axially installed on one side of the exhaust gas inlet hole to be opened and closed by the operation of a lever(15). A discharge hole(18) is formed at the upper part of the waste heat recovery tank.

Description

가스버너를 이용한 농산물건조기의 폐열 회수장치{omitted}Waste heat recovery system of agricultural product dryer using gas burner {omitted}

도 1은 종래의 농산물건조기를 나타낸 사시도1 is a perspective view showing a conventional agricultural product dryer

도 2는 도 1의 종단면도2 is a longitudinal cross-sectional view of FIG.

도 3은 도 2의 A - A선 단면도3 is a cross-sectional view taken along the line A-A of FIG.

도 4는 본 발명의 농산물 건조기를 나타낸 사시도Figure 4 is a perspective view of the agricultural product dryer of the present invention

도 5는 도 4의 B- B선 단면도5 is a cross-sectional view taken along the line B-B of FIG.

도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings

2 : 건조실 3 : 선반2: drying room 3: shelves

4 : 격벽 5 : 가스버너4: bulkhead 5: gas burner

6 : 열 교환기 7 : 가열실6: heat exchanger 7: heating chamber

8 : 수평 격벽 9 : 송풍기8: horizontal bulkhead 9: blower

10a, 10b : 공기순환공 11 : 연통10a, 10b: air circulation hole 11: communication

13 : 폐열 회수탱크 14 : 댐퍼13: waste heat recovery tank 14: damper

15 : 레버 17 : 배기가스 유입공15: lever 17: exhaust gas inlet hole

18 : 배출공 19 : 위치고정용 놉18: exhaust hole 19: position fixing knob

20 : 활성탄 필터 21 : 백금 촉매 망20: activated carbon filter 21: platinum catalyst network

본 발명은 농가에서 수확된 농작물(주로 고추 등)을 열풍에 의해 건조하는 가스버너를 이용한 농산물건조기에 관한 것으로서, 좀더 구체적으로는 흡입된 공기와 열 교환하고 난 폐열을 대기 중으로 방출하지 않고 송풍기의 구동으로 재 유입시켜 반복적으로 공기와 열 교환이 이루어지도록 하는 가스버너를 이용한 농산물건조기의 폐열 회수장치에 관한 것이다.The present invention relates to a agricultural product dryer using a gas burner for drying crops (mainly peppers, etc.) harvested from a farmhouse by hot air, and more specifically, to exhaust air from the blower without exchanging waste heat from the heat exchanged with the sucked air. The present invention relates to a waste heat recovery apparatus of a agricultural product dryer using a gas burner which re-flows into a drive to repeatedly exchange heat with air.

일반적으로 가을철에 수확된 고추를 태양열에 의해 건조시키는 것이 고추의 품질을 향상시키게 되므로 농가의 수익을 증대시키게 되지만, 일손이 부족한 농촌에서는 태양열을 이용하여 고추를 건조하지 못하고 농산물건조기를 이용하여 1차 적으로 찐 다음 이를 태양열에 의해 2차 적으로 건조시키거나, 농산물건조기를 이용하여 완전 열풍 건조시키고 있는 실정이다.In general, drying peppers harvested in autumn by solar heat improves the quality of peppers, which increases farmers' profits. However, in rural areas where there is not enough hands, it is not possible to dry peppers using solar heat. It is steamed and then dried secondarily by solar heat, or completely hot air dried using a agricultural product dryer.

상기 농산물건조기는 기름을 사용하는 기름건조기와, 가스를 이용한 가스건조기, 전기를 이용한 전기건조기 등으로 대별된다.The agricultural product dryers are roughly classified into oil dryers using oil, gas dryers using gas, and electric dryers using electricity.

상기한 건조기 중 기름건조기는 고 유가에 따라 고추건조에 따른 비용부담이 커 거의 사용하지 않고, 주로 가스건조기 또는 전기건조기를 이용하여 고추를 건조시키고 있다.The oil dryer of the above dryer is very rarely used due to the high cost of pepper drying depending on the high oil price, and is mainly dried pepper using a gas dryer or an electric dryer.

그러나 이러한 건조기는 열 교환기에 의해 열 교환하고 난 폐열을 대기 중으로 방출하는 구조를 갖는다.However, such a dryer has a structure in which waste heat from heat exchange by a heat exchanger is released into the atmosphere.

도 1은 종래의 농산물건조기를 나타낸 사시도이고 도 2는 도 1의 종단면도로 서, 함체형상으로 이루어진 본체(1)의 일 측에 농산물이 적재되는 선반(2)이 서랍식으로 끼워지는 건조실(3)이 구비되어 있고 상기 건조실과 격벽(4)으로 구획된 반대편 하부에는 가스버너(5)의 가동에 따라 발생된 열이 공기와 열 교환을 하는 열 교환기(6)가 설치된 가열실(7)이 구비되어 있으며 상기 가열실(7)의 상부에 수평 격벽(8)으로 구획된 부위에는 건조실(3)과 가열실(7)로 공기를 순환시키는 송풍기(9)가 설치되어 있다.1 is a perspective view illustrating a conventional agricultural product dryer, and FIG. 2 is a longitudinal cross-sectional view of FIG. 1, wherein a shelf 2 on which a product is loaded on one side of a main body 1 formed in a container shape is fitted in a drawer type 3. And a heating chamber (7) provided with a heat exchanger (6) in which heat generated by the operation of the gas burner (5) is exchanged with air at the lower side opposite to the drying chamber and the partition wall (4). The upper part of the heating chamber 7 is divided into horizontal partitions 8 and a blower 9 for circulating air to the drying chamber 3 and the heating chamber 7 is provided.

그리고 상기 격벽(4)의 상부와 하부에는 건조실(3) 측으로 고온의 공기가 순환되도록 하는 공기순환공(10a)(10b)이 각각 형성되어 있고 열 교환기(6)의 일 측에는 공기와 열 교환하고 난 고온의 배기가스가 배출되는 연통(11)이 연결되어 있다.In addition, air circulation holes 10a and 10b are formed at upper and lower portions of the partition 4 to circulate high-temperature air toward the drying chamber 3, and heat exchange with air at one side of the heat exchanger 6. The communication 11 through which the hot exhaust gas is discharged is connected.

따라서 건조실(3)의 측 벽에 일정 간격으로 설치된 레일(12)에 고추 등과 같은 농산물이 가지런히 담긴 선반(2)을 차례로 끼운 상태에서 가스버너(5)를 착화시키면 가스버너의 착화에 따라 열 교환기(6)가 고온으로 가열되기 시작한다.Therefore, when the gas burner 5 is ignited in a state in which the shelf 12, which includes agricultural products such as red pepper, is inserted into the rails 12 installed at regular intervals on the side walls of the drying chamber 3, the ignition of the gas burner causes heat. Exchanger 6 begins to heat to high temperature.

이러한 상태에서 수평 격벽(8)에 설치된 송풍기(9)가 구동하여 공기가 화살표방향과 같이 공기순환공(10a)(10b)을 통해 순환하면 열 교환기(6)를 거치면서 복사열에 의해 데워져 하부에 형성된 공기순환공(10a)을 통해 건조실(3)의 내부로 유입되어 농산물을 건조시킨 다음 상부에 형성된 공기순환공(10b)으로 배출되므로 건조실 내의 농산물이 건조된다.In this state, when the blower 9 installed in the horizontal bulkhead 8 is driven and the air circulates through the air circulation holes 10a and 10b in the direction of the arrow, it is warmed by radiant heat while passing through the heat exchanger 6. Into the inside of the drying chamber (3) through the air circulation hole (10) formed in the agricultural products are dried and then discharged to the air circulation hole (10b) formed in the upper agricultural products in the drying chamber is dried.

그러나 이러한 구조를 갖는 종래의 농산물건조기는 열 교환기(6)를 통과하는 과정에서 순환하는 공기와 복사열에 의해 열 교환하고 난 고온의 배기가스가 연통(11)을 통해 대기 중으로 그냥 방출되므로 가스버너(5)의 열효율을 떨어지게 되고, 이에 따라 농산물의 건조에 따른 비용이 많이 소요되는 문제점이 있었다.However, in the conventional agricultural product dryer having such a structure, since the hot exhaust gas, which has been heat-exchanged by circulating air and radiant heat in the process of passing through the heat exchanger 6, is discharged into the atmosphere through the communication 11, the gas burner ( The thermal efficiency of 5) is reduced, and accordingly, there is a problem in that the cost of drying the produce is high.

본 발명은 이와 같은 종래의 문제점을 해결하기 위해 안출한 것으로서, 가스버너에 의해 연소되고 난 배기가스는 가스의 연소에 따라 완전연소가 이루어짐에 착안하여 열 교환기를 통과하면서 공기와 복사열에 의해 열 교환하고 난 고온의 배기가스가 송풍기를 거쳐 가열실의 내부로 재 유입되도록 하여 농산물건조기의 열 효율을 극대화시킬 수 있도록 하는데 그 목적이 있다.The present invention has been made in order to solve such a conventional problem, the exhaust gas burned by the gas burner heat exchange by air and radiant heat while passing through the heat exchanger, focusing on the complete combustion according to the combustion of the gas The purpose is to maximize the thermal efficiency of the agricultural product dryer by allowing the high-temperature exhaust gas to flow back into the interior of the heating chamber through the blower.

상기 목적을 달성하기 위한 본 발명의 형태에 따르면, 선반이 착탈 가능하게 장착되어 농산물의 건조가 이루어지는 건조실과, 상기 건조실과 공기순환공을 갖는 격벽으로 구획되며 열 교환기가 설치된 가열실과, 상기 열 교환기를 가열시키는 가스 버너와, 상기 가열실과 수평 격벽으로 구획되어 공기를 순환시키는 송풍기로 구성된 가스버너를 이용한 농산물건조기에 있어서, 상기 열 교환기에 연결되는 연통의 끝단에 폐열 회수탱크를 설치하고 상기 폐열 회수탱크의 일 측에는 송풍기 측으로 회수된 고온의 배기가스가 유입되도록 하는 배기가스 유입공을 설치함과 동시에 상기 배기가스 유입공의 일 측에는 레버의 조작에 의해 개폐되는 댐퍼를 축 설치하며 폐열 회수탱크의 상부에는 배출공을 형성하여서 된 것을 특징으로 하는 가스버너를 이용한 농산물건조기의 폐열 회수장치가 제공된다.According to an aspect of the present invention for achieving the above object, a drying chamber is detachably mounted to dry the agricultural products, a heating chamber partitioned by a partition wall having the drying chamber and the air circulation hole, the heat exchanger is installed, and the heat exchanger In a agricultural product dryer using a gas burner composed of a gas burner for heating the gas and a blower partitioned by the heating chamber and a horizontal partition wall to circulate air, a waste heat recovery tank is installed at an end of the communication connected to the heat exchanger and the waste heat recovery is performed. An exhaust gas inlet hole is installed at one side of the tank to allow the high temperature exhaust gas recovered to the blower side, and at one side of the exhaust gas inlet hole, a damper is opened and closed by a lever operation. In the gas burner, characterized in that by forming a discharge hole A waste heat recovery apparatus of the agricultural product dryer is provided.

이하, 본 발명을 일 실시예로 도시한 도 4 및 도 5를 참고하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to FIGS. 4 and 5 as an embodiment.

도 4는 본 발명의 농산물 건조기를 나타낸 사시도이고 도 5는 도 4의 B- B선 단면도로서, 본 발명은 농산물의 건조가 이루어지는 건조실(2)의 양 측벽에 선반(3)이 얹혀지는 레일(12)이 상, 하방향으로 설치되어 있고 격벽(4)으로 구획된 가열실(7)에는 열 교환기(6)가 설치되어 있으며 상기 열 교환기의 입구에는 가스를 연소시키는 가스버너(5)가 설치되어 있다.Figure 4 is a perspective view of the agricultural product dryer of the present invention and Figure 5 is a cross-sectional view taken along line B-B of Figure 4, the present invention is a rail (3) is placed on both side walls of the drying chamber (2) where the drying of the produce ( The heat exchanger 6 is installed in the heating chamber 7 partitioned by the partition wall 4 and 12) installed up and down, and a gas burner 5 for burning gas is installed at the inlet of the heat exchanger. It is.

그리고 상기 가열실(7)을 구획하는 수평 격벽(8)에 공기를 순환시키는 송풍기(9)가 설치되어 있고 상기 열 교환기(6)에 연결된 연통(11)의 끝단에는 청정하면서도 고온인 배기가스를 회수하여 송풍기(9) 측으로 유도하는 폐열 회수탱크(13)가 설치되어 있다.In addition, a blower 9 for circulating air is installed in the horizontal partition 8 partitioning the heating chamber 7, and clean and hot exhaust gas is provided at the end of the communication 11 connected to the heat exchanger 6. The waste heat recovery tank 13 which collect | recovers and guides it to the blower 9 side is provided.

상기 폐열 회수탱크(13)의 일 측에 송풍기(9) 측으로 고온의 배기가스가 유입되도록 하는 배기가스 유입공(17)이 형성되어 있고 상기 배기가스 유입공의 일 측에는 상기 폐열 회수탱크(13)의 외부에 설치된 레버(15)의 조작에 의해 개폐되는 댐퍼(14)가 축(16) 설치되어 있으며 폐열 회수탱크(13)의 상부에는 필요에 따라 배기가스가 대기 중으로 배출되도록 하는 배출공(18)이 형성되어 있다.An exhaust gas inlet hole 17 is formed at one side of the waste heat recovery tank 13 to allow a high temperature exhaust gas to flow into the blower 9, and the waste heat recovery tank 13 is formed at one side of the exhaust gas inlet hole. The damper 14 is opened and closed by the operation of the lever 15 installed on the outside of the shaft 16 and the discharge hole 18 to discharge the exhaust gas into the atmosphere as necessary in the upper portion of the waste heat recovery tank (13). ) Is formed.

상기 댐퍼(14)를 개폐시키도록 폐열 회수탱크(13)의 외부에 설치된 레버(15)의 일단에는 도 4에 나타낸 바와 같이 위치고정용 놉(19)이 나사 결합되어 있어 레버(15)에 나사 결합된 위치고정용 놉(19)을 풀어 댐퍼(14)의 개폐량을 조절한 다음 풀었던 위치고정용 놉(19)을 조여 상기 위치고정용 놉의 끝단이 폐열 회수탱크(13)의 벽면에 긴밀히 접속되도록 하면 레버(15)로부터 외력을 제거하더라도 댐퍼(14)의 위치가 가변되지 않도록 구성되어 있다.As shown in FIG. 4, a position fixing knob 19 is screwed to one end of the lever 15 installed outside the waste heat recovery tank 13 to open and close the damper 14. Loosen the combined position fixing knob 19 to adjust the amount of opening and closing of the damper 14, and then tighten the position fixing knob 19 which is loosened to the end of the position fixing knob on the wall surface of the waste heat recovery tank 13. If it is closely connected, even if the external force is removed from the lever 15, the position of the damper 14 is comprised so that it may not be changed.

또한, 상기 폐열 회수탱크(13)의 수평방향으로 활성탄 필터(20)가 설치되어 폐열 회수탱크의 내부를 상, 하로 구획하도록 되어 있는데, 상기 활성탄 필터에는 복수 개의 백금 촉매 망(21)이 구비되어 있다.In addition, the activated carbon filter 20 is installed in the horizontal direction of the waste heat recovery tank 13 to partition the inside of the waste heat recovery tank up and down. The activated carbon filter includes a plurality of platinum catalyst nets 21. have.

이는, 가스의 연소에 따라 발생된 연소가스가 활성탄 필터(20) 및 백금 촉매망(21)을 통과하도록 하여 보다 청정한 연소 열을 얻을 수 있도록 하기 위함이다.This is to allow the combustion gas generated according to the combustion of the gas to pass through the activated carbon filter 20 and the platinum catalyst network 21 to obtain cleaner combustion heat.

이와 같이 구성된 본 발명의 작용을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above is as follows.

먼저, 건조실(2)의 측 벽에 일정 간격으로 설치된 레일(12)에 고추 등과 같은 농산물이 가지런히 담긴 선반(3)을 차례로 끼운 상태에서 가스버너(5)를 착화시키면 가스버너의 착화에 따라 열 교환기(6)가 고온으로 가열되기 시작한다.First, when the gas burner 5 is ignited in a state in which a shelf 3 containing agricultural products such as red pepper is inserted into the rails 12 provided at regular intervals on the side wall of the drying chamber 2, the ignition of the gas burner occurs. The heat exchanger 6 starts to heat to high temperature.

이와 같이 가스버너(5)의 연소가 이루어지는 초기단계에서는 가스가 청정연료라 하더라도 불완전연소가 일어날 수 있어 배가가스가 송풍기(9) 측으로 유입되지 않도록 댐퍼(14)가 배기가스 유입공(17)을 폐쇄하고 있다.As described above, in the initial stage in which the gas burner 5 is burned, incomplete combustion may occur even if the gas is a clean fuel, so that the damper 14 opens the exhaust gas inlet 17 so that the doubling gas does not flow into the blower 9. It is closing.

이러한 상태에서 수평 격벽(8)에 설치된 송풍기(9)가 구동하면 종래와 마찬가지로 공기가 화살표방향과 같이 공기순환공(10a)(10b)을 통해 순환되는 과정에서 열 교환기(6)를 거치면서 복사열에 의해 데워져 하부에 형성된 공기순환공(10a)을 통해 건조실(2)의 내부로 유입되어 농산물을 건조시킨 다음 상부에 형성된 공기순환공(10b)으로 배출되므로 건조실 내의 농산물이 건조되기 시작한다.In this state, when the blower 9 installed in the horizontal bulkhead 8 is driven, radiant heat passes through the heat exchanger 6 in a process in which air is circulated through the air circulation holes 10a and 10b as in the arrow direction as in the conventional art. It is warmed by the air circulation hole (10a) formed in the lower through the inside of the drying chamber (2) to dry the agricultural products and then discharged to the air circulation hole (10b) formed in the upper agricultural products in the drying chamber starts to dry.

상기 가스버너(5)에 의한 가스의 연소가 정상적으로 이루어진다고 판단되면 폐열 회수탱크(13)의 외부로 노출된 레버(15)를 반 시계방향으로 회전시켜 배기가스 유입공(17)을 개방하게 된다.When it is determined that combustion of the gas by the gas burner 5 is normally performed, the exhaust gas inlet hole 17 is opened by rotating the lever 15 exposed to the outside of the waste heat recovery tank 13 counterclockwise. .

즉, 레버(15)를 반 시계방향으로 회전시켜 배기가스 유입공(17)을 개방한 다 음 레버(15)의 일단에 나사 결합된 위치고정용 놉(19)을 회전시켜 끝단이 폐열 회수탱크(13)에 밀착되도록 하면 댐퍼(14)가 개방된 상태를 유지하게 되므로 연통(11)을 통해 배출되는 고온의 배기가스가 송풍기(9)의 구동에 따른 흡입력으로 배출공(18)으로 배출되지 않고 배기가스 유입공(17) 및 송풍기(9)를 거쳐 가열실(7)의 내부로 재 유입되어 공기와 열 교환하므로 열 효율을 극대화시킬 수 있게 된다.That is, the lever 15 is rotated counterclockwise to open the exhaust gas inlet hole 17 and then rotate the position fixing knob 19 screwed to one end of the lever 15 so that the end thereof is a waste heat recovery tank. If the damper 14 is kept open, the hot exhaust gas discharged through the communication 11 is not discharged to the discharge hole 18 by the suction force according to the driving of the blower 9. Without the exhaust gas inlet hole 17 and the blower 9 to be re-introduced into the interior of the heating chamber 7 and heat exchange with the air it is possible to maximize the thermal efficiency.

상기 댐퍼(17)의 개폐량은 건조실(2) 내의 농산물 건조상태에 따라 조절하여 고온의 배기가스가 송풍기(9) 측으로 유입되는 양을 적절히 조절하면 된다.The amount of opening / closing of the damper 17 may be adjusted according to the agricultural product drying state in the drying chamber 2 so as to appropriately adjust the amount of high temperature exhaust gas flowing into the blower 9 side.

즉, 농산물의 초기 건조상태에서는 댐퍼(14)의 최대한 개방으로 댐퍼(14)가 배출공(18)을 폐쇄하여 고온의 배기가스가 배출공(18)으로 배출되지 않고 송풍기(9) 측으로 많이 유입되도록 하고, 건조 정도에 따라 배기가스 유입공(17)의 열린 정도를 적절히 조절하여 배기가스가 배기가스 유입공(17) 및 배출공(18)으로 동시에 이동되도록 하므로써, 가스버너(5)의 열 효율을 극대화시키게 되는 것이다.That is, in the initial dry state of the agricultural product, the damper 14 closes the discharge hole 18 with the maximum opening of the damper 14 so that a high temperature exhaust gas flows into the blower 9 side without being discharged to the discharge hole 18. Heat of the gas burner 5 by appropriately adjusting the opening degree of the exhaust gas inlet hole 17 according to the drying degree so that the exhaust gas is simultaneously moved to the exhaust gas inlet hole 17 and the exhaust hole 18. It will maximize the efficiency.

이상에서 설명한 바와 같이 본 발명은 건조실을 순환하는 공기와 열 교환하고 난 고온이면서도 완전 연소되어 유해물질이 포함되지 않은 배기가스를 회수하여 반복 순환시키도록 구성되어 있어 농산물연소기의 열 효율을 극대화하게 되고, 이에 따라 농산물의 건조에 따른 비용을 최소화할 수 있어 농가의 소득 증대에 기여할 수 있게 되는 효과를 얻게 된다.As described above, the present invention is configured to recover and repeatedly circulate exhaust gas containing high temperature and complete combustion after the heat exchange with the air circulating in the drying chamber, which does not contain harmful substances, thereby maximizing the thermal efficiency of the agricultural combustor. As a result, the costs associated with the drying of agricultural products can be minimized, thereby contributing to the increase of farmers' income.

Claims (3)

선반(3)이 착탈 가능하게 장착되어 농산물의 건조가 이루어지는 건조실(2)과, 상기 건조실과 공기순환공(10a)(10b)을 갖는 격벽(4)으로 구획되며 열 교환기(6)가 설치된 가열실(7)과, 상기 열 교환기를 가열시키는 가스 버너(5)와, 상기 가열실과 수평 격벽(8)으로 구획되어 공기를 순환시키는 송풍기(9)로 구성된 가스버너를 이용한 농산물건조기에 있어서, 상기 열 교환기(6)에 연결되는 연통(11)의 끝단에 폐열 회수탱크(13)를 설치하고 상기 폐열 회수탱크의 일 측에는 송풍기 측으로 회수된 고온의 배기가스가 유입되도록 하는 배기가스 유입공(17)을 설치함과 동시에 상기 배기가스 유입공의 일 측에는 레버(15)의 조작에 의해 개폐되는 댐퍼(14)를 축(16) 설치하며 폐열 회수탱크(13)의 상부에는 배출공(18)을 형성하여서 된 것을 특징으로 하는 가스버너를 이용한 농산물건조기의 폐열 회수장치.The shelf 3 is detachably mounted, and is divided into a drying chamber 2 in which agricultural products are dried, and a partition wall 4 having the drying chamber and air circulation holes 10a and 10b and in which a heat exchanger 6 is installed. In the agricultural product dryer using the gas burner which consists of the chamber 7, the gas burner 5 which heats the said heat exchanger, and the blower 9 which divides into the said heating chamber and the horizontal partition 8, and circulates air, The said An exhaust gas inlet hole 17 for installing a waste heat recovery tank 13 at an end of the communication 11 connected to the heat exchanger 6 and allowing one side of the waste heat recovery tank to flow in the hot exhaust gas recovered to the blower side. At the same time, the shaft 16 is installed at one side of the exhaust gas inlet hole by opening and closing the damper 14 by the operation of the lever 15, and the exhaust hole 18 is formed at the upper portion of the waste heat recovery tank 13. Using a gas burner, characterized in that Waste heat recovery apparatus of a dryer product. 청구항 1에 있어서,The method according to claim 1, 상기 레버(15)의 일단에는 나사 조임에 따라 끝단이 폐열 회수탱크(13)에 밀착되는 위치고정용 놉(19)을 나사 결합하여 댐퍼(14)의 개폐량을 조절할 수 있도록 하는 것을 특징으로 하는 가스버너를 이용한 농산물건조기의 폐열 회수장치.One end of the lever 15 is screwed to the position fixing knob 19 is in close contact with the waste heat recovery tank 13 in accordance with the screw tightening to adjust the amount of opening and closing of the damper 14, characterized in that Waste heat recovery apparatus of agricultural product dryer using gas burner. 청구항 1에 있어서,The method according to claim 1, 상기 폐열 회수탱크(13)의 내부에 복수 개의 백금 촉매 망(21)이 구비된 활 성탄 필터(20)를 설치하여서 된 것을 특징으로 하는 가스버너를 이용한 농산물건조기의 폐열 회수장치.Waste heat recovery apparatus for a agricultural product dryer using a gas burner, characterized in that the activated carbon filter 20 provided with a plurality of platinum catalyst net 21 in the waste heat recovery tank (13).
KR1020070004775A 2007-01-16 2007-01-16 Waste heat recovery system of agricultural product dryer using gas burner KR100837505B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110715520A (en) * 2019-09-09 2020-01-21 陈国� Environment-friendly and energy-saving drying device
KR102418826B1 (en) * 2022-03-11 2022-07-07 이수균 Modular smart dryer

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Publication number Priority date Publication date Assignee Title
KR950010038Y1 (en) * 1993-06-10 1995-11-25 합명회사국제산업공사 Apparatus for recovering of heat for to bacco dryer
KR200172768Y1 (en) 1999-09-02 2000-03-15 주식회사신흥콘트롤 Dryer combined with heat recovery device
KR20040031402A (en) * 2002-10-05 2004-04-13 유영미 Agriculture And Marine Product Drying Device
KR20070033143A (en) * 2005-09-21 2007-03-26 엄기훈 A Harvest dryer using gas burner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950010038Y1 (en) * 1993-06-10 1995-11-25 합명회사국제산업공사 Apparatus for recovering of heat for to bacco dryer
KR200172768Y1 (en) 1999-09-02 2000-03-15 주식회사신흥콘트롤 Dryer combined with heat recovery device
KR20040031402A (en) * 2002-10-05 2004-04-13 유영미 Agriculture And Marine Product Drying Device
KR20070033143A (en) * 2005-09-21 2007-03-26 엄기훈 A Harvest dryer using gas burner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110715520A (en) * 2019-09-09 2020-01-21 陈国� Environment-friendly and energy-saving drying device
KR102418826B1 (en) * 2022-03-11 2022-07-07 이수균 Modular smart dryer

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