KR20020026730A - Apparatus for heating greenhouse - Google Patents

Apparatus for heating greenhouse Download PDF

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Publication number
KR20020026730A
KR20020026730A KR1020000057970A KR20000057970A KR20020026730A KR 20020026730 A KR20020026730 A KR 20020026730A KR 1020000057970 A KR1020000057970 A KR 1020000057970A KR 20000057970 A KR20000057970 A KR 20000057970A KR 20020026730 A KR20020026730 A KR 20020026730A
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KR
South Korea
Prior art keywords
heating
wire
heating wire
plastic house
lead wire
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KR1020000057970A
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Korean (ko)
Inventor
이용노
Original Assignee
김경자
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Priority to KR1020000057970A priority Critical patent/KR20020026730A/en
Publication of KR20020026730A publication Critical patent/KR20020026730A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/246—Air-conditioning systems
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/26—Electric devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Greenhouses (AREA)

Abstract

PURPOSE: Provided is a heating device for a vinyl plastic house using not oil but an electric heat wire, thereby decreasing heating cost for the vinyl plastic house. CONSTITUTION: The heating device for a vinyl plastic house comprises a temperature sensor detecting the indoor temperature of the vinyl plastic house; a controller regulating the supply of the electric power according to the signal of the temperature sensor; a lead connected with the controller; an electric heat wire connected with the lead to generate heat, consisting of 90% of copper and 10% of nickel, and having resistance of 0.1142¥Ø/m and diameter of 0.68 to 0.71 mm; a supporting part which supports the electric heat wire; and an operating switch which controls the operation of the controller.

Description

비닐하우스용 난방장치{APPARATUS FOR HEATING GREENHOUSE}Heating for green house {APPARATUS FOR HEATING GREENHOUSE}

본 발명은 비닐하우스용 난방장치에 관한 것으로, 보다 상세하게는 농작물 재배용 온실 및 비닐하우스의 공기 온도를 식물의 생육에 적당한 온도로 유지하기 위해 공기중에 전열선을 배치하여 난방하도록 한 비닐하우스용 난방장치에 관한 것이다.The present invention relates to a heating device for a vinyl house, and more particularly, a heating device for a vinyl house to heat the heating wire by arranging heating wires in the air in order to maintain the air temperature of the greenhouse for greenhouses and the vinyl house at a temperature suitable for plant growth. It is about.

영농의 방법에 있어서 영농기술이 발달한 선진국에서는 일교차가 심하게 발생하지 않기 때문에 공중가온 방법에 크게 의존하지 않는 실정이다. 그러나, 우리나라와 같이 대륙성기후를 갖고 있는 국가의 농가에서는 계절의 한계가 뚜렷하고 일교차가 매우 심하게 나타나기 때문에 겨울철 영농에는 보온방법에 심혈을 기울여야 하며, 그러한 보온방법으로 상당한 자본이 투자되고 있다.In developed countries where farming techniques have been developed in farming methods, there is no significant crossover, so they do not rely heavily on public heating methods. However, farms in countries with continental climate, such as Korea, have obvious seasonal limitations and have very severe daily crossings, so winter farming must pay close attention to the warming method, and considerable capital is invested in such warming methods.

특히, 겨울철에 고속득의 농산물을 재배하기 위해서는 온실 또는 비닐하우스를 이용하여 식물의 외부온도 즉, 온실 또는 비닐하우스의 내부 온도를 식물이 생육하기 적당한 온도로 일정하게 유지해야만 한다.In particular, in order to cultivate agricultural products of high-speed gain in winter, the greenhouse temperature or the greenhouse should be kept at a temperature suitable for the plants to grow outside, that is, the greenhouse temperature.

일반적으로, 겨울철에 온실 또는 비닐하우스의 내부 온도를 높이기 위해서는 난로를 피우거나 온풍기를 설치하여 공기를 데우는 방식을 사용하고 있다.In general, in order to increase the internal temperature of a greenhouse or a plastic house in winter, a stove or a hot air fan is installed to heat the air.

그러나, 연료로 석유를 사용하는 온풍기의 경우에는 고유가로 인한 유지비가 너무 많이 소요되기 때문에 일반적인 농가에서는 사용하기 어려운 실정이다.However, in the case of a hot air fan using petroleum as a fuel, the maintenance cost due to high oil prices is too high, so it is difficult to use it in general farms.

이와 같은 문제점을 해결하기 위해 비닐하우스내의 땅속 온도를 일정하게 유지하여 식물이 생육하기 적합하도록 하기 위해 본 출원인이 실용신안 출원 1999-22111호 (1999. 10. 14.) "비닐하우스용 지중가열장치"로 출원한 바 있다.In order to solve this problem, in order to maintain a constant underground temperature in the plastic house to make plants suitable for growth, the present applicant has applied for a utility model application 1999-22111 (October 14, 1999) "Underground heating device for vinyl house Has been filed.

그러나, 이와 같은 지중가열장치에 의해서는 비닐하우스 내부를 난방시킬 수 없는 문제점이 있다.However, there is a problem in that the underground heating apparatus can not heat the inside of the plastic house.

본 발명은 상기와 같은 문제점을 해결하기 위해 창작된 것으로서, 본 발명의 목적은 전열선의 동과 니켈의 함유량을 조절하여 200미터 정도의 길이에서 상대적으로 많은 열이 발생되도록 함으로써 일반 농가용 비닐하우스 내의 공중에 설치될 때 난방효과를 발휘할 수 있도록 한 비닐하우스용 난방장치를 제공함에 있다.The present invention was created to solve the above problems, an object of the present invention by adjusting the copper and nickel content of the heating wire to generate a relatively large amount of heat in a length of about 200 meters in a general farmhouse plastic house It is to provide a heating device for a plastic house that can exert a heating effect when installed in the air.

도 1은 본 발명에 따른 비닐하우스용 공중가열장치의 구성을 나타낸 블록구성도이다.1 is a block diagram showing the configuration of an air heating apparatus for a vinyl house according to the present invention.

도 2는 본 발명에 의한 비닐하우스용 난방장치의 리드선과 전열선을 나타낸 도면이다.2 is a view showing the lead wire and the heating wire of the heating device for a vinyl house according to the present invention.

도 3은 본 발명에 의한 비닐하우스용 난방장치의 설치상태를 나타낸 도면이다.3 is a view showing the installation state of the heating device for a vinyl house according to the present invention.

- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-

5 : 비닐하우스 10 : 온도센서5: vinyl house 10: temperature sensor

20 : 제어부 30 : 리드선20: control unit 30: lead wire

40 : 전열선 50 : 리드선 결합부40: heating wire 50: lead wire coupling portion

60 : 작동스위치 70 : 지지부60: operation switch 70: support

상기와 같은 목적을 실현하기 위한 본 발명은 비닐하우스의 내부 온도를 측정하는 온도센서와, 온도센서의 값에 따라 전원 공급을 단속하는 제어부와, 제어부와 접속되는 리드선과, 리드선과 접속되어 발열하는 동 함유량 90%와 니켈 함유량 10%로 형성되어 0.1142Ω/m의 저항을 갖는 직경 0.68㎜ ∼ 0.71㎜ 인 전열선과, 전열선을 비닐하우스의 내부 공간에 띄워 설치하기 위한 지지부와, 제어부로 공급되는 전원을 단속하여 작동을 선택하기 위한 작동스위치로 이루어진 것을 특징으로 한다.The present invention for realizing the above object is a temperature sensor for measuring the internal temperature of the plastic house, a control unit for controlling the power supply according to the value of the temperature sensor, a lead wire connected to the control unit, and connected to the lead wire to generate heat A heating wire having a diameter of 0.68 mm to 0.71 mm having a resistance of 0.1142 Ω / m and having a copper content of 90% and a nickel content of 10%, a support for installing the heating wire in the inner space of the plastic house, and a power supply supplied to the controller It characterized in that consisting of the operation switch for selecting the operation by intermittent.

위에서 전열선과 리드선을 서로 연결하는 리드선 접합부는 PVC로 특수 방수몰드처리하여 습기와 수분에 의해 방전을 방지하게 된다.The lead wire joint connecting the heating wire and the lead wire to each other is treated with a special waterproof mold of PVC to prevent discharge by moisture and moisture.

위에서 전열선의 길이는 일반농가의 표준 비닐하우스의 내부를 감싸기 위해210m인 것을 특징으로 한다.The length of the heating wire from above is characterized in that 210m to surround the interior of the standard greenhouse of the general farmhouse.

위와 같이 이루어진 비닐하우스용 난방장치는 전열선의 동과 니켈의 함유량을 90%:10%로 조절하여 작은 직경으로 저항값을 동일하게 유지한 상태로 전원이 인가됨에 따라 발열하여 비닐하우스의 내부 공기를 가열하여 난방을 시키게 됨으로써 전열선의 원가를 절감할 수 있는 이점이 있다.The heating device for a vinyl house made of the above is to control the copper and nickel content of the heating wire to 90%: 10% to generate heat as the power is applied while keeping the resistance value the same in a small diameter to generate air inside the vinyl house. By heating by heating, there is an advantage that can reduce the cost of the heating wire.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명한다. 또한 본 실시예는 본 발명의 권리범위를 한정하는 것은 아니고, 단지 예시로 제시된 것이다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In addition, this embodiment is not intended to limit the scope of the present invention, but is presented by way of example only.

도 1은 본 발명에 의한 비닐하우스용 난방장치를 나타낸 블록구성도이다.1 is a block diagram showing a heating device for a vinyl house according to the present invention.

여기에 도시된 바와 같이 비닐하우스(5)의 내부 온도를 측정하는 온도센서(10)와, 온도센서(10)의 값에 따라 전열선(40)으로 공급되는 전원을 단속하는 제어부(20)와, 제어부(20)와 접속되어 공급되는 전원을 전열선(40)으로 전달하기 위한 리드선(30)이 연결된다.As shown here, the temperature sensor 10 for measuring the internal temperature of the plastic house 5, the control unit 20 for controlling the power supplied to the heating wire 40 according to the value of the temperature sensor 10, The lead wire 30 is connected to the control unit 20 to transfer the power supplied to the heating wire 40.

그리고, 이 리드선(30)과 접속되어 발열하기 위한 전열선(40)이 비닐하우스(5)의 내부 공중에 지지부(70)에 의해 띄워진 상태로 설치되어 발열하게 된다.Then, the heating wire 40 connected to the lead wire 30 to generate heat is installed in the state of being lifted by the support part 70 in the interior air of the vinyl house 5 to generate heat.

이때 전열선(40)은 동 함유량 90%와 니켈 함유량 10%로 형성되어 0.1142Ω/m의 저항을 갖는 직경 0.68㎜ ∼ 0.71㎜ 인 것을 사용한다.At this time, the heating wire 40 is formed with a copper content of 90% and nickel content of 10% and uses a diameter of 0.68mm to 0.71mm having a resistance of 0.1142Ω / m.

그리고, 제어부(20)로 공급되는 상용 전원인 220V의 정격전원을 단속하여 작동을 선택하기 위한 작동스위치(60)가 설치된다.In addition, an operation switch 60 for selecting an operation by interrupting a rated power of 220 V, which is commercial power supplied to the control unit 20, is installed.

도 2는 본 발명에 의한 비닐하우스용 난방장치의 리드선과 전열선을 나타낸 도면이다.2 is a view showing the lead wire and the heating wire of the heating device for a vinyl house according to the present invention.

여기에 도시된 바와 같이 전열선(40)은 제어부(20)에 전기적으로 접속되는 리드선(30)과 리드선 접합부(50)에 의해 서로 연결된다.As shown here, the heating wires 40 are connected to each other by the lead wires 30 and the lead wire bonding portions 50 electrically connected to the control unit 20.

리드선(30)은 일반적인 전원공급용 전선으로써, 속심의 외부에 절연체인 PVC(폴리 염화 비닐)피복을 씌워서, 비닐하우스(5)내의 습기 등으로부터 전기가 방전되는 것을 방지할 수 있게 형성되어 있다.The lead wire 30 is a general power supply wire, and is covered with a PVC (polyvinyl chloride) coating, which is an insulator, on the outside of the core to prevent electric discharge from moisture or the like in the vinyl house 5.

또한, 리드선 접합부(50)는 내부의 습기 및 수분을 방지할 수 있도록, 전기적으로 접속된 리드선(30)과 전열선(40)의 속심을 PVC로 특수 방수몰드처리하여 밀폐시키고 있다.In addition, the lead wire joint 50 is sealed with a special waterproof mold treatment of the core of the electrically connected lead wire 30 and the heating wire 40 to prevent moisture and moisture therein.

그리고, 전열선(40)은 PVC피복을 입힌 것으로서, 그 속선은 단위길이당 저항 0.1142Ω/m의 크기를 갖도록, 동 함유량 90%와 니켈 함유량 10%로 형성되어 있다.The heating wire 40 is coated with PVC, and the wire is formed of 90% copper content and 10% nickel content so as to have a size of 0.1142? / M of resistance per unit length.

이런 전열선(40)을 일반적인 농가의 규격화된 비닐하우스(5)에 설치할 때 비닐하우스(5)의 규격이 폭 5m, 길이 100m일 경우 이 비닐하우스(5) 내부를 한 바퀴 감쌀 경우 전열선(40)의 총길이(L)는 210m 이고, 직경(d)은 0.68㎜ ∼ 0.71㎜ 이다.When the heating wire 40 is installed in a standardized vinyl house 5 of a general farmhouse, when the size of the vinyl house 5 is 5 m in width and 100 m in length, the heating wire 40 is wrapped around the inside of the vinyl house 5. The total length L of is 210m, and the diameter d is 0.68 mm to 0.71 mm.

따라서, 길이(L) 210m를 갖는 전열선(40)은 아래의 수학식 1에 의해서 전체 저항치(R)은 23.98Ω을 갖게 된다.Accordingly, the heating wire 40 having the length L 210m has a total resistance value R of 23.98 Ω by Equation 1 below.

따라서, 이렇게 계산된 전체 저항치(R)를 일반적인 옴의 법칙에 적용하여 전력(W)과 1시간 동안 소비된 전력량을 구하면 아래의 수학식 2와 같다.Therefore, applying the calculated total resistance value (R) to the general Ohm's law to obtain the power (W) and the amount of power consumed for one hour as shown in Equation 2 below.

이와 같은 공식에 의해 전열선(40)에서 발생된 발열량(Q)을 구하면 수학식 3과 같은 열량(Kcal)을 갖는다.When the calorific value Q generated in the heating wire 40 is obtained by the above formula, the calorific value Kcal is obtained as shown in Equation 3 below.

이렇게 비닐하우스(5) 내의 공중에 설치된 전열선에서 시간당 1743㎉의 열량을 발생시키고 있어 기출원된 비닐하우스용 지중가열장치의 전열선에 비해 가는선을 사용하면서 동일한 열량이 발생하고 있어 전열선의 부피가 조금들어 원가절감을 얻을 수 있다.In this way, the heating wire installed in the air in the vinyl house 5 generates 1743 kW of heat per hour, and the same amount of heat is generated while using the thin wire as compared to the heating wire of the underground heating apparatus for the vinyl house. For example, cost reduction can be achieved.

도 3은 본 발명에 의한 비닐하우스용 난방장치의 설치상태를 나타낸 도면이다.3 is a view showing the installation state of the heating device for a vinyl house according to the present invention.

여기에 도시된 바와 같이 비닐하우스(5)의 내부 천장에 지지부(70)를 설치한 후 전열선(40)을 이 지지부(70)에 거치시켜 비닐하우스(5) 내부를 한 바뀌 돌 수있도록 공중에 띄워 설치한다.As shown here, after installing the support part 70 on the inner ceiling of the plastic house 5, the heating wire 40 is mounted on the support part 70 so that the inside of the plastic house 5 can be turned around. Float and install.

이렇게 비닐하우스(5) 내부 공간에 설치된 전열선(40)에서 시간당 1743Kcal 의 열량이 발생함으로써 비닐하우스(5)를 내부 공기를 난방시킴으로써 식물의 생육에 필요한 온도를 유지할 수 있게 된다.In this way, a heat amount of 1743 Kcal per hour is generated in the heating wire 40 installed in the inner space of the vinyl house 5, thereby maintaining the temperature required for plant growth by heating the air inside the vinyl house 5.

상기한 바와 같이 본 발명은 비닐하우스의 내부 공간에 210m의 전열선에 일반농가에서 사용하는 220V전원을 공급함으로써 유류를 사용하지 않고 편리하게 비닐하우스 내부공기를 난방시켜 식물의 생육에 필요한 온도를 유지할 수 있는 장점이 있다.As described above, the present invention can maintain the temperature necessary for plant growth by conveniently heating the air inside the vinyl house without using oil by supplying 220V power used in general farms to the heating wire of 210m in the inner space of the plastic house. There is an advantage.

또한, 전열선의 재질을 동 함유량 90%와 니켈 함유량 10%로 형성하여 단위길이당 선저항을 0.1142Ω/m 으로 형성함으로써 직경 0.68㎜ ∼ 0.71㎜의 굵기로도 동일한 열량을 발생시킬 수 있어 전열선의 제작에 필요한 원가를 절감할 수 있는 이점이 있다.In addition, by forming the material of the heating wire with a copper content of 90% and a nickel content of 10% and forming a wire resistance per unit length of 0.1142 Ω / m, the same amount of heat can be generated even with a thickness of 0.68 mm to 0.71 mm. There is an advantage that can reduce the cost required for manufacturing.

Claims (3)

비닐하우스의 내부 온도를 측정하는 온도센서와,A temperature sensor for measuring the internal temperature of the plastic house, 상기 온도센서의 값에 따라 전원 공급을 단속하는 제어부와,A controller for controlling power supply according to the value of the temperature sensor; 상기 제어부와 접속되는 리드선과,A lead wire connected to the control unit, 상기 리드선과 접속되어 발열하는 동 함유량 90%와 니켈 함유량 10%로 형성되어 0.1142Ω/m의 저항을 갖는 직경 0.68㎜ ∼ 0.71㎜ 인 전열선과,A heating wire having a diameter of 0.68 mm to 0.71 mm formed of a copper content of 90% and a nickel content of 10% connected to the lead wire and having a resistance of 0.1142? / M, 상기 전열선을 비닐하우스의 내부 공간에 띄워 설치하기 위한 지지부와,Support for installing the heating wire floating in the inner space of the plastic house, 상기 제어부로 공급되는 전원을 단속하여 작동을 선택하기 위한 작동스위치An operation switch for selecting an operation by interrupting the power supplied to the controller; 로 이루어진 것을 특징으로 하는 비닐하우스용 난방장치.Heating device for a vinyl house, characterized in that consisting of. 제 1항에 있어서, 상기 전열선과 상기 리드선을 PVC로 특수 방수몰드처리하여 서로 연결하는 리드선 접합부를 더 포함하여 이루어진 것을 특징으로 하는 비닐하우스용 난방장치.The heating apparatus according to claim 1, further comprising a lead wire joint part for connecting the heating wire and the lead wire to each other by special waterproof molding treatment with PVC. 제 1항에 있어서, 상기 전열선의 길이는 210m인 것을 특징으로 하는 비닐하우스용 난방장치.The heating apparatus of claim 1, wherein the heating wire has a length of 210 meters.
KR1020000057970A 2000-10-02 2000-10-02 Apparatus for heating greenhouse KR20020026730A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358544A (en) * 2013-08-02 2013-10-23 安徽省宁国市天成电机有限公司 Temperature-controlled roasting and connecting apparatus
KR20190084457A (en) * 2018-01-08 2019-07-17 김세영 Implementation method of low-resistance multi-hot wire solar heating system and its solar heating system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6460318A (en) * 1987-08-31 1989-03-07 Chiyoufu Kosan Kk Device for controlling temperature in house for culture of agricultural crop and apparatus for supplying heat medium for said device
KR930004111Y1 (en) * 1991-04-12 1993-07-02 삼성전자 주식회사 Cleaner ejection device of a vacuum cleaner
JPH11178461A (en) * 1997-12-24 1999-07-06 Yasushi Akahori Heating device for greenhouse
KR200174579Y1 (en) * 1999-10-14 2000-03-15 김경자 Apparatus for heating the earth below the greenhouse
KR200214152Y1 (en) * 2000-09-18 2001-02-15 한국썬웨이주식회사 Heating device for vinyl house and cattle shed using the electric heat pipe and the medium of heat

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6460318A (en) * 1987-08-31 1989-03-07 Chiyoufu Kosan Kk Device for controlling temperature in house for culture of agricultural crop and apparatus for supplying heat medium for said device
KR930004111Y1 (en) * 1991-04-12 1993-07-02 삼성전자 주식회사 Cleaner ejection device of a vacuum cleaner
JPH11178461A (en) * 1997-12-24 1999-07-06 Yasushi Akahori Heating device for greenhouse
KR200174579Y1 (en) * 1999-10-14 2000-03-15 김경자 Apparatus for heating the earth below the greenhouse
KR200214152Y1 (en) * 2000-09-18 2001-02-15 한국썬웨이주식회사 Heating device for vinyl house and cattle shed using the electric heat pipe and the medium of heat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358544A (en) * 2013-08-02 2013-10-23 安徽省宁国市天成电机有限公司 Temperature-controlled roasting and connecting apparatus
CN103358544B (en) * 2013-08-02 2016-07-06 安徽省宁国市天成电机有限公司 A kind of temperature control is dried and is connect equipment
KR20190084457A (en) * 2018-01-08 2019-07-17 김세영 Implementation method of low-resistance multi-hot wire solar heating system and its solar heating system

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