KR100915701B1 - Airconditioning apparatus of house using earth heat-heat pump - Google Patents

Airconditioning apparatus of house using earth heat-heat pump

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Publication number
KR100915701B1
KR100915701B1 KR1020090031513A KR20090031513A KR100915701B1 KR 100915701 B1 KR100915701 B1 KR 100915701B1 KR 1020090031513 A KR1020090031513 A KR 1020090031513A KR 20090031513 A KR20090031513 A KR 20090031513A KR 100915701 B1 KR100915701 B1 KR 100915701B1
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KR
South Korea
Prior art keywords
heat
house
temperature
geothermal
heating
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KR1020090031513A
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Korean (ko)
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문감사
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문감사
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Priority to KR1020090031513A priority Critical patent/KR100915701B1/en
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Publication of KR100915701B1 publication Critical patent/KR100915701B1/en

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    • 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
    • A01G9/245—Conduits for heating by means of liquids, e.g. used as frame members or for soil heating
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy
    • 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
    • Y02P60/14—Measures for saving energy, e.g. in green houses

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

A heating and cooling apparatus using a geothermal heat pump is provided to store up the heat for the proper temperature of a house, thereby improving heating and cooling efficiency. A heating and cooling apparatus comprises the following units. A geothermal energy collector(1) is installed in the ground. A heat pump(2) consists of a compressor, a first heat exchanger, an expansion valve and a second heat exchanger. A heat storage tank(3) stores up the heat generated by the heat pump. A heating and cooling water circulating pipe(6) circulates the heat of the heat storage tank in a heating and cooling piping(5) in order to control the inner temperature of a house. A third heat-exchange medium circulating pipe(3a) circulates a third heat-exchange medium in the heat storage tank through the first heat exchanger. A temperature controller lowers the inner temperature of the house when it is higher than a predetermined temperature while storing up the heat. The temperature controller consists of a heat supply pipe(10), a heat collecting pipe(20) and a valve for switching the heat supply pipe and the heat collecting pipe.

Description

지열 히트펌프를 이용한 하우스의 냉난방장치{airconditioning apparatus of house using earth heat-heat pump}Air conditioning unit of house using earth heat-heat pump

본 발명은 지열 히트펌프를 이용한 하우스의 냉난방장치에 관한 것으로서, 더욱 상세하게는 동절기 주간에 히트펌프의 응축열을 이용하여 냉난방수를 축열함과 동시에 히트펌프의 증발열을 통해 하우스 실내를 개방하지 않아도 적정 온도로 유지할 수 있고, 하우스 내부에 주간시 공급된 이산화탄소가 손실되지 않도록 한 지열 히트펌프를 이용한 하우스의 냉난방장치에 관한 것이다.The present invention relates to a heating and cooling device of a house using a geothermal heat pump, and more particularly, it is appropriate without accumulating cooling and heating water using the condensation heat of the heat pump during the winter day and opening the house interior through the evaporative heat of the heat pump. The present invention relates to a heating and cooling device for a house using a geothermal heat pump that can maintain the temperature and prevent carbon dioxide supplied during the daytime from being lost inside the house.

일반적으로 시설원예 하우스에서 작물 재배 시에는 기온, 햇빛, 이산화탄소 등과 같은 지상부의 환경은 물론, 토양 내의 수분, 양분, 산소 및 적정온도유지 등 토양내의 환경도 중요하다. 이에 시설작물이 잘 성장가능 하도록 최적의 환경을 조성하기 위한 온풍기, 이산화탄소발생기, 관수시설 등과 같은 장비는 다수 개발되어 사용되어 오고 있으나, 연료로는 주로 화석연료를 사용하고 있고 전량 수입에 의존하고 있는 상황이어서 원유의 가격변동에 따라 농가의 부담이 상당한 실정인데 비해, 연료를 절약할 수 있는 방법이나 대체에너지에 대한 개발은 미흡한 실정이다.In general, when cultivating crops in a horticultural house, the environment in the soil such as temperature, sunlight, carbon dioxide, and the like, as well as the moisture, nutrients, oxygen and proper temperature in the soil are important. Therefore, a number of equipments such as a hot air fan, a carbon dioxide generator, and an irrigation facility have been developed and used to create an optimal environment for plant crops to grow well. However, fossil fuels are mainly used as fuels, and the total amount depends on imports. As a result, the burden on farms due to the price fluctuation of crude oil is considerable, but there is insufficient development of a method for saving fuel or alternative energy.

실제적으로 2002년을 기준으로 국내의 시설원예의 난방연료의 95%를 경유로 사용하고, 중유는 4%, 기타 1% 정도 사용하고 있으며, 난방비가 시설작물경영비의 30~37%를 차지하는데 일본은 20%, 네델란드는 14~15%, 이스라엘은 10%인데 비하면 우리나라 시설원예의 난방비 점유율이 매우 높다.Actually, as of 2002, 95% of the heating fuel of domestic horticulture is used as diesel, heavy oil is used by 4% and other 1%, and heating costs account for 30 ~ 37% of facility crop management costs. Silver is 20%, Netherlands is 14-15%, and Israel is 10%.

2001년 농촌진흥청 통계자료에 의하면 국내 대부분 지역의 유리온실 및 비닐 하우스는 난방유에 의한 연소발열을 대부분 이용하고 있으며, 난방유의 연소열량은 실제 유효열량과는 차이가 있어 보일러 몸체에서의 손실, 배기가스 손실, 기타 열 손실 등을 고려할 때 공급할 수 있는 열에너지는 약 75~85%정도로서, 경유의 발열량을 8,700㎉/ℓ 정도로 보면 실제 이용하는 열량은 7,360㎉/ℓ에 불과하여 비효율적이다.According to statistics from the Rural Development Administration in 2001, most glass greenhouses and vinyl houses in Korea use most of the combustion heat generated by heating oil, and the heat of combustion of heating oil is different from the actual amount of heat. When considering the loss and other heat loss, the heat energy that can be supplied is about 75 ~ 85%, and the heat quantity of diesel oil is about 8,700㎉ / ℓ, which is inefficient because the actual heat is only 7,360㎉ / ℓ.

덧붙여, 현대인들의 건강에 대한 관심은 갈수록 고조되고 있고 농산물을 선택하는 기준 또한 엄격해져만 가고 있는 상황에서, 무공해농산물을 재배하기 위해서는 화석연료를 사용하는 것은 불합리한 점이 있다. 이에 무공해 자연대체 에너지가 필수적이지만 아직까지는 특별한 대체품은 없는 상태이고, 태양과 풍력, 지열을 활용하여 보조열원으로 사용하는 정도가 현실이다.In addition, there is an unreasonable use of fossil fuels for growing non-polluting agricultural products, as the concern for the health of modern people is increasing and the criteria for selecting agricultural products are becoming more stringent. Pollution-free natural alternative energy is essential, but there are no special alternatives yet, and the reality is that it uses solar, wind, and geothermal energy as an auxiliary heat source.

본 발명은 지열 히트펌프와 관련된 것이므로 이하에서는 지열 히트펌프를 이용한 하우스의 냉난방장치에 대해 설명한다. Since the present invention relates to a geothermal heat pump, the following describes a house heating and cooling device using a geothermal heat pump.

도 1에서 보이는 것처럼, 종래 기술에 의한 지열 히트펌프를 이용한 하우스의 냉난방장치는, 지중에 설치되어 지열을 회수하는 지열 회수부(1)와, 지열 회수부(1)에 의해 회수된 열과 열교환하는 히트펌프(2)와, 히트펌프(2)에 의해 발생된 열을 축열하는 축열탱크(3)와, 축열탱크(3)의 열을 하우스(4)에 설치된 냉난방 배관(5)에 순환시켜 하우스(4)를 냉난방하는 냉난방수 순환관(6)으로 구성된다.As shown in FIG. 1, the air-conditioning apparatus for a house using a geothermal heat pump according to the prior art has a geothermal recovery unit 1 installed in the ground and recovering geothermal heat, and heat exchanged with heat recovered by the geothermal recovery unit 1. The heat pump (2), the heat storage tank (3) for storing heat generated by the heat pump (2), and the heat of the heat storage tank (3) are circulated through the air-conditioning pipe (5) provided in the house (4) It consists of the air-conditioning circulation pipe 6 which cools and heats (4).

지열 회수부(1)는 지중에 천공된 지열 회수공에 삽입되며 내부에 제1열교환매체가 순환하는 지열 회수관을 포함한다.The geothermal recovery unit 1 is inserted into a geothermal recovery hole bored in the ground and includes a geothermal recovery tube through which the first heat exchange medium circulates.

히트펌프(2)는 열교환매체를 고온고압으로 압축하는 압축기(2a), 압축기(2a)에 의해 압축된 제2열교환매체와 지열 회수부(1)의 제1열교환매체의 열교환을 유도하는 제1열교환기(2b), 제1열교환기(2b)를 통과한 제2열교환매체를 감압하는 팽창밸브(2c), 팽창밸브(2c)에 의해 감압된 제2열교환매체와 축열탱크(3)를 순환하는 제3열교환매체의 열교환을 유도하는 제2열교환기(2d)로 구성된다.The heat pump 2 is a compressor 2a for compressing the heat exchange medium at a high temperature and high pressure, a first heat exchange medium for inducing heat exchange between the second heat exchange medium compressed by the compressor 2a and the first heat exchange medium of the geothermal recovery unit 1. An expansion valve (2c) for decompressing the second heat exchange medium passing through the heat exchanger (2b), the first heat exchanger (2b), and the second heat exchange medium and the heat storage tank (3) reduced by the expansion valve (2c) are circulated. And a second heat exchanger 2d for inducing heat exchange of the third heat exchange medium.

아울러, 냉방과 난방을 수행하는 경우 상기 제2열교환매체의 흐름을 전환하는 사방밸브(미도시)가 더 포함된다.In addition, the four-way valve (not shown) for switching the flow of the second heat exchange medium when cooling and heating is further included.

축열탱크(3)는 예컨대, 내부에 냉난방수가 저장되며 히트펌프(2)와 열교환된 제3열교환매체를 통해 냉난방수를 원하는 온도로 조절한다.The heat storage tank 3 controls, for example, cooling and cooling water to a desired temperature through a third heat exchange medium in which cooling and heating water is stored and heat-exchanged with the heat pump 2.

냉난방수 순환관(6)은 축열탱크(3)에서 제3열교환매체와 열교환된 냉난방수를 하우스(4)의 냉난방 배관(5)에 공급한다. The cooling / heating water circulation pipe 6 supplies the cooling / heating water heat exchanged with the third heat exchange medium in the heat storage tank 3 to the cooling / heating pipe 5 of the house 4.

즉, 냉난방수는 냉난방 배관(5)을 따라 순환하면서 하우스(4) 실내 공기와 열교환하여 하우스(4)를 냉난방한다.That is, the heating and cooling water heats and heats the house 4 by heat-exchanging with the indoor air of the house 4 while circulating along the air-conditioning pipe 5.

그러나, 종래 기술에 의한 지열 히트펌프를 이용한 하우스의 냉난방장치는 다음과 같은 문제점이 있다.However, the air conditioner of a house using a geothermal heat pump according to the prior art has the following problems.

야간에는 하우스(4) 내부 온도가 농작물의 성장에 적합하지 않은 온도 이하로 떨어지기 때문에 난방장치를 가동하여 하우스(4) 내부 온도를 상승시켜 적정 환경을 조성하고 있다.At night, since the temperature inside the house 4 falls below a temperature unsuitable for growing crops, the heating device is operated to raise the inside temperature of the house 4 to create an appropriate environment.

하지만, 동절기 주간에는 직사광선이 하우스(4) 내부에 입사되어 하우스(4)의 온도가 농작물의 성장에 적합하지 않은 온도 예를 들어 섭씨 30도 이상 상승하며, 따라서, 하우스(4) 내부의 온도를 적정 온도로 낮추기 위하여 하우스(4)에 갖추어진 도어나 창문을 개방함으로써 하우스(4) 실내와 실외의 열교환을 유도하여 하우스(4) 내부 온도를 낮추고 있다.However, during the winter day, direct sunlight is incident on the inside of the house 4, so that the temperature of the house 4 rises above a temperature, for example, 30 degrees Celsius, which is not suitable for the growth of the crop, and thus, the temperature inside the house 4 is increased. By opening the door or window provided in the house (4) to lower to an appropriate temperature to induce heat exchange between the house (4) indoors and outdoors to lower the temperature of the house (4).

따라서, 주간에는 지열 히트펌프를 이용한 하우스의 냉난방장치를 가동하지 않기 때문에 축열효율이 떨어지며, 이는 야간 운전 효율을 저하시켜 하우스(4)를 난방하는 것이 어렵고 별도의 보조 난방장치를 사용해야 하는 문제점이 있다.Therefore, during the day, the heat storage efficiency is lowered because the heating and cooling system of the house using the geothermal heat pump is not operated, which is difficult to heat the house 4 by lowering the night driving efficiency, and there is a problem of using a separate auxiliary heating device. .

그리고, 농작물은 주간에 광합성과 이산화탄소를 이용하여 산소와 양분을 만들기 때문에 하우스(4) 내부에 이산화탄소를 강제로 주입하고 있다. 그러나, 하우스(4) 내부 온도의 조절을 위하여 하우스(4)를 개방하기 때문에 이산화탄소가 외부로 배출될 수밖에 없으며, 결국 이산화탄소의 손실량을 감안하여 공급량을 늘려야 하므로 이산화탄소의 구입비용이 증가하는 문제점도 있다.In addition, since crops make oxygen and nutrients using photosynthesis and carbon dioxide during the day, carbon dioxide is forcibly injected into the house 4. However, since the house 4 is opened to control the internal temperature of the house 4, carbon dioxide is inevitably emitted to the outside, and thus, the purchase cost of carbon dioxide increases because the supply amount must be increased in consideration of the amount of carbon dioxide loss. .

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 동절기 주간에 히트펌프의 응축열을 이용하여 냉난방수를 축열함과 동시에 히트펌프의 증발열을 통해 하우스 실내를 개방하지 않아도 적정 온도로 유지할 수 있도록 한 지열 히트펌프를 이용한 하우스의 냉난방장치를 제공하는데 그 목적이 있다. The present invention is to solve the above problems, geothermal heat to maintain the proper temperature without opening the room interior through heat storage of cooling and heating by using the heat of condensation of the heat pump during the winter day and evaporative heat of the heat pump It is an object of the present invention to provide a heating and cooling device for a house using a heat pump.

그리고, 본 발명의 다른 목적은 하우스 내부에 있는 이산화탄소가 외부로 손실되지 않도록 하려는데 있다. Another object of the present invention is to prevent carbon dioxide in the house from being lost to the outside.

본 발명의 또 다른 목적은 주간에 지열 회수부를 가동하지 않고 하우스 실내를 적정 온도로 유지하면서 축열탱크에서 축열이 이루어지도록 하려는데 있다.Another object of the present invention is to allow the heat storage in the heat storage tank while maintaining the house interior at an appropriate temperature without operating the geothermal recovery unit during the day.

전술한 바와 같은 목적을 달성하기 위한 본 발명에 의한 지열 히트펌프를 이용한 하우스의 냉난방장치는, 지중에 설치되어 지열을 회수하는 지열 회수부와; 상기 지열 회수부에 의해 회수된 열과 열교환하는 히트펌프와; 상기 히트펌프에 의해 발생된 열을 축열하는 축열탱크와; 상기 축열탱크의 열을 하우스에 설치된 냉난방 배관에 순환시켜 상기 하우스의 내부 온도를 조절하는 냉난방수 순환관과; 상기 하우스 내부의 온도가 적정 온도보다 높을 때 상기 히트펌프에 의해 상기 하우스 내부 온도를 낮추면서 상기 축열탱크에 열을 축열하도록 하는 온도조절부를 포함하여 구성된 것을 특징으로 한다.The air-conditioning apparatus for a house using a geothermal heat pump according to the present invention for achieving the above object is a geothermal recovery unit installed in the ground to recover the geothermal heat; A heat pump that heat-exchanges with the heat recovered by the geothermal recovery unit; A heat storage tank for accumulating heat generated by the heat pump; Cooling and heating water circulation pipe for controlling the internal temperature of the house by circulating the heat of the heat storage tank to the cooling and heating pipes installed in the house; And a temperature control unit configured to store heat in the heat storage tank while lowering the temperature inside the house by the heat pump when the temperature inside the house is higher than an appropriate temperature.

본 발명에 따른 지열 히트펌프를 이용한 하우스의 냉난방장치에 의하면, 동절기 주간에 지열 회수부를 가동하지 않은 상태에서 히트펌프의 증발열을 이용하여 하우스 내부의 온도를 적정 온도로 낮추어 하우스 실내를 개방하지 않으므로 열손실을 막을 수 있고, 동시에 동절기 주간에 히트펌프의 응축열을 이용하여 냉난방수를 축열하므로 냉난방장치로서의 효용성을 높일 수 있다.According to the air-conditioning apparatus of a house using a geothermal heat pump according to the present invention, the temperature inside the house is lowered to an appropriate temperature by using the evaporative heat of the heat pump in the state of not operating the geothermal heat recovery unit during the winter day, so the house interior is not opened. Loss can be prevented, and at the same time, heat and cooling are accumulated by using the heat of condensation of the heat pump during the winter day, thereby improving the utility as a cooling and heating device.

그리고, 하우스 내부 온도 조절을 위하여 하우스의 도어나 창을 통해 하우스 내부를 개방하지 않기 때문에 농작물의 재배를 위해 공급된 이산화탄소가 외부로 손실되지 않으므로 이산화탄소 공급 비용을 절감할 수 있고, 적은 비용으로 농작물을 재배할 수 있다.In addition, since the inside of the house is not opened through the door or window of the house to control the temperature inside the house, the carbon dioxide supplied for the cultivation of the crops is not lost to the outside, thereby reducing the cost of supplying the carbon dioxide. Can be grown.

또한, 동절기 주간시 지열 회수부를 가동하지 않으므로 가동에 따른 비용을 절감할 수 있고, 지열 회수부를 가동하지 않아도 동절기 주간에 축열탱크에 열을 축열하여 지열 회수부의 지열 회수율을 낮추어도 충분한 난방이 이루어져 지열 회수를 위한 천공 등이 줄어들게 되므로 초기 투자 비용 등을 절감할 수 있다.In addition, since the geothermal recovery unit is not operated during the winter day, the cost of operation can be reduced, and even if the geothermal recovery unit does not operate, the heat is stored in the heat storage tank during the winter day to lower the geothermal recovery rate of the geothermal recovery unit. Since the drilling for recovery is reduced, the initial investment cost can be saved.

도 1은 종래 기술에 의한 지열 히트펌프를 이용한 하우스의 냉난방장치의 구성도.1 is a block diagram of a heating and cooling device of a house using a geothermal heat pump according to the prior art.

도 2와 도 3은 본 발명에 의한 지열 히트펌프를 이용한 하우스의 냉난방장치의 작동 흐름도로서,2 and 3 is a flow chart of the operation of the heating and cooling device of the house using a geothermal heat pump according to the present invention,

도 2는 동절기 주간시 흐름도이고,2 is a flow chart during winter daytime,

도 3은 동절기 야간시 흐름도이다. 3 is a winter night flow chart.

< 도면의 주요 부분에 대한 부호 설명><Description of Signs for Main Parts of Drawings>

1 : 지열 회수부, 2 : 히트펌프1: geothermal recovery unit, 2: heat pump

3 : 축열탱크, 4 : 하우스3: heat storage tank, 4: house

5 : 냉난방 배관, 6 : 냉난방수 순환관5: heating and cooling piping, 6: cooling and heating water circulation pipe

10 : 냉난방열 공급관, 20 : 냉난방열 회수관10: heating and cooling heat supply pipe, 20: heating and cooling heat recovery tube

V1,V2,V3 : 밸브,V1, V2, V3: valve,

도 2에서 보이는 것처럼, 본 발명에 따른 지열 히트펌프를 이용한 하우스의 냉난방장치는, 지중에 설치되어 지열을 회수하는 지열 회수부(1)와, 지열 회수부(1)에 의해 회수된 열과 열교환하는 히트펌프(2)와, 히트펌프(2)에 의해 발생된 열을 축열하는 축열탱크(3)와, 축열탱크(3)의 열을 하우스(4)에 설치된 냉난방 배관(5)에 순환시켜 하우스(4)를 냉난방하는 냉난방수 순환관(6)으로 구성된다.As shown in FIG. 2, the air-conditioning apparatus for a house using a geothermal heat pump according to the present invention includes a geothermal recovery unit 1 installed in the ground to recover geothermal heat, and heat exchange with heat recovered by the geothermal recovery unit 1. The heat pump (2), the heat storage tank (3) for storing heat generated by the heat pump (2), and the heat of the heat storage tank (3) are circulated through the air-conditioning pipe (5) provided in the house (4) It consists of the air-conditioning circulation pipe 6 which cools and heats (4).

지열 회수부(1)는 지중에 천공된 지열 회수공에 삽입되며 내부에 제1열교환매체가 순환하는 지열 공급측 라인(1a)과 지열 회수측 라인(1b)을 포함한다.The geothermal recovery unit 1 includes a geothermal heat supply side line 1a and a geothermal heat recovery side line 1b inserted into a geothermal heat recovery hole bored in the ground and circulated therein with a first heat exchange medium.

히트펌프(2)는 열교환매체를 고온고압으로 압축하는 압축기(2a), 압축기(2a)에 의해 압축된 제2열교환매체와 지열 회수부(1)의 제1열교환매체의 열교환을 유도하는 제1열교환기(2b), 제1열교환기(2b)를 통과한 제2열교환매체를 감압하는 팽창밸브(2c), 팽창밸브(2c)에 의해 감압된 제2열교환매체와 축열탱크(3)를 순환하는 제3열교환매체의 열교환을 유도하는 제2열교환기(2d)로 구성된다.The heat pump 2 is a compressor 2a for compressing the heat exchange medium at a high temperature and high pressure, a first heat exchange medium for inducing heat exchange between the second heat exchange medium compressed by the compressor 2a and the first heat exchange medium of the geothermal recovery unit 1. An expansion valve (2c) for decompressing the second heat exchange medium passing through the heat exchanger (2b), the first heat exchanger (2b), and the second heat exchange medium and the heat storage tank (3) reduced by the expansion valve (2c) are circulated. And a second heat exchanger 2d for inducing heat exchange of the third heat exchange medium.

아울러, 냉방과 난방을 수행하는 경우 상기 제2열교환매체의 흐름을 전환하는 사방밸브(미도시)가 더 포함된다.In addition, the four-way valve (not shown) for switching the flow of the second heat exchange medium when cooling and heating is further included.

축열탱크(3)는 예컨대, 내부에 냉난방수가 저장되며 제3열교환매체가 순환하는 배관이 갖추어져, 히트펌프(2)와 열교환된 제3열교환매체를 통해 냉난방수를 원하는 온도로 조절한다.The heat storage tank 3 has, for example, a cooling and cooling water stored therein and a pipe through which the third heat exchange medium circulates, thereby adjusting the cooling and heating water to a desired temperature through the third heat exchange medium heat exchanged with the heat pump 2.

냉난방수 순환관(6)은 축열탱크(3)에서 제3열교환매체와 열교환된 냉난방수를 하우스(4)의 냉난방 배관(5)에 공급한다. The cooling / heating water circulation pipe 6 supplies the cooling / heating water heat exchanged with the third heat exchange medium in the heat storage tank 3 to the cooling / heating pipe 5 of the house 4.

이상의 구성은 종래와 동일하며, 이하 본 발명에 의해 신규한 구성에 대해 설명한다.The above structure is the same as the conventional one, and a novel structure is demonstrated below by this invention.

본 발명은 하우스(4) 내부의 온도가 적정 온도보다 높을 경우 하우스(4) 내부를 개방하여 내기와 외기의 순환에 의해 하우스(4) 내부 온도를 낮추지 않고 하우스(4) 내부 온도를 적정 온도로 낮출 수 있도록 한 온도조절부가 포함된다.According to the present invention, when the temperature inside the house 4 is higher than the proper temperature, the inside of the house 4 is opened to the proper temperature without lowering the temperature of the house 4 by the circulation of the bet and the outside by opening the house 4. A thermostat is included to lower it.

상기 온도조절부는 지열을 하우스(4)의 냉난방 배관(5)에 공급하는 냉난방열 공급관(10), 냉난방 배관(5)을 순환한 열을 회수하는 냉난방열 회수관(20) 및 밸브수단으로 구성된다.The temperature control unit is composed of a heating and cooling heat supply pipe 10 for supplying the geothermal heat to the heating and cooling pipe 5 of the house 4, the heating and cooling heat recovery tube 20 and the valve means for recovering the heat circulated through the heating and cooling pipe (5) do.

냉난방열 공급관(10)은 양측이 히트펌프(2)의 제2열교환기(2d)의 출구측(도면에서는 지열 회수부(1)의 지열회수측 라인(1b)에 연결된 것으로 도시됨)과 냉난방수 순환관(6)의 공급측 라인(6a)에 각각 유체 연통 가능하게 연결된다.The air-conditioning heat supply pipe 10 has both sides connected to the outlet side of the second heat exchanger 2d of the heat pump 2 (shown in the figure as being connected to the geothermal recovery side line 1b of the geothermal recovery unit 1) and the air conditioning. It is connected in fluid communication with the supply side line 6a of the water circulation pipe 6, respectively.

냉난방열 회수관(20)은 양측이 히트펌프(2)의 제2열교환기(2d)의 입구측(도면에서는 지열 회수부(1)의 지열 공급측 라인(1a)에 연결된 것으로 도시됨)과 냉난방수 순환관(6)의 회수측 라인(6b)에 연결된다. The air-conditioning heat recovery pipe 20 has both sides connected to the inlet side of the second heat exchanger 2d of the heat pump 2 (shown in the figure as being connected to the geothermal heat supply side line 1a of the geothermal heat recovery unit 1) and air-conditioning. It is connected to the return side line 6b of the water circulation pipe 6.

상기 밸브수단은, 지열 회수부(1)의 지열 공급측 라인(1a)과 지열 회수측 라인(1b)을 개폐하는 제1밸브(V1), 냉난방수 순환관(6)의 공급측 라인(6a)과 회수측 라인(6b)을 개폐하는 제2밸브(V2), 냉난방열 공급관(10)과 냉난방열 회수관(20)을 개폐하는 제3밸브(V3)로 구성된다.The valve means includes a first valve V1 for opening and closing the geothermal heat supply side line 1a and the geothermal heat recovery side line 1b of the geothermal heat recovery unit 1, a supply side line 6a of the air-conditioning circulation pipe 6, It consists of the 2nd valve V2 which opens and closes the collection | recovery side line 6b, the 3rd valve | bulb V3 which opens and closes the air-conditioning heat-dissipation supply pipe 10, and the air-conditioning heat-recovery pipe 20. As shown in FIG.

상기 밸브수단은 동절기 히터펌프(2)의 증발열을 통해 하우스(4) 내부의 온도를 낮추기 위한 것이므로 제1,2밸브(V1,V2)는 개폐 동작이 동일하며, 제3밸브(V3)는 제1,2밸브(V1,V2)와 반대로 개폐 동작한다.Since the valve means is to lower the temperature inside the house 4 through the heat of evaporation of the winter heater pump 2, the first and second valves V1 and V2 have the same opening and closing operation, and the third valve V3 is It opens and closes opposite to 1,2 valves (V1, V2).

상기 밸브수단은 관리자의 수동 조작에 의해 개폐될 수도 있지만, 하우스(4) 내부의 온도에 따라 자동으로 개폐 동작될 수도 있다.The valve means may be opened or closed by manual operation of a manager, but may be automatically opened and closed according to the temperature inside the house 4.

상기 밸브수단의 자동 개폐를 위하여 온도센서(T)와 컨트롤러(C)가 갖추어진다.A temperature sensor T and a controller C are provided for automatic opening and closing of the valve means.

온도센서(T)는 하우스(4) 내부의 온도를 검출하는 것으로 온도 검출값의 정확성을 위하여 하우스(4) 내부 온도의 정확성에 하나 이상이 설치될 수 있다.The temperature sensor T detects a temperature inside the house 4, and one or more temperature sensors T may be installed to correct the temperature inside the house 4 for the accuracy of the temperature detection value.

컨트롤러(C)는 상기 밸브수단의 전환을 위한 기준 온도가 저장되어 있으며, 상기 기준 온도와 온도센서(T)에서 검출된 온도를 비교하여 현재 온도가 기준 온도보다 높으면 제3밸브(V3)만 개방하고 제1,2밸브(V1,V2)를 폐쇄시킨다.The controller C stores a reference temperature for switching the valve means, and compares the reference temperature with the temperature detected by the temperature sensor T, and opens only the third valve V3 when the current temperature is higher than the reference temperature. And close the first and second valves V1 and V2.

본 발명에 의한 지열 히트펌프를 이용한 하우스의 냉난방장치의 작용은 다음과 같다.The function of the heating and cooling device of a house using a geothermal heat pump according to the present invention is as follows.

1. 동절기 주간.1. Winter weekly.

동절기 주간에는 직사광선이 하우스(4) 내부에 입사되어 하우스(4) 내부 온도가 상승하게 된다.During the winter day, direct sunlight is incident on the inside of the house 4, so that the temperature inside the house 4 increases.

도 2에서 보이는 것처럼, 하우스(4) 내부의 온도가 상승하여 적정 온도(기준 온도)보다 높아지면 하우스(4) 내부의 온도를 적정 온도로 낮춰야 하며, 본 발명은 하우스(4)의 도어나 창을 열지 않고 히트펌프(2)의 증발열을 이용하여 하우스(4) 내부의 온도를 낮추는 것이므로 제1,2밸브(V1,V2)를 폐쇄시키고 제3밸브(V3)를 개방시킨다.As shown in FIG. 2, when the temperature inside the house 4 rises and becomes higher than an appropriate temperature (reference temperature), the temperature inside the house 4 must be lowered to an appropriate temperature, and the present invention provides a door or window of the house 4. Since the temperature inside the house 4 is lowered using the heat of evaporation of the heat pump 2 without opening the first and second valves V1 and V2, the third valve V3 is opened.

즉, 히트펌프(2)의 제2열교환기(증발기)(2d)와 하우스(4)의 냉난방 배관(5)이 냉난방수(기능적 측면에서 볼 때 하우스(4) 내부의 공기 온도를 낮추는 것이므로 냉방수라 할 수 있다)에 의한 하나의 사이클을 구성하고, 히트펌프(2)의 제1열교환기(응축기)(2b)와 축열탱크(3)가 하나의 사이클을 구성하여 축열을 한다.That is, the second heat exchanger (evaporator) 2d of the heat pump 2 and the cooling / heating pipe 5 of the house 4 lower the air temperature of the air-conditioning water (in terms of function, so as to lower the air temperature inside the house 4). One cycle, and the first heat exchanger (condenser) 2b and the heat storage tank 3 of the heat pump 2 constitute one cycle to perform heat storage.

이때, 히트펌프(2)는 압축기(2a) - 제1열교환기(응축기)(2b) - 팽창밸브(2c) - 제2열교환기(증발기)(2d)의 사이클로 운영되어, 냉난방열 공급관(10)과 냉난방열 회수관(20)은 하우스(4)의 냉난방 배관(5)에 연결된다.At this time, the heat pump 2 is operated in a cycle of the compressor (2a)-the first heat exchanger (condenser) (2b)-expansion valve (2c)-the second heat exchanger (evaporator) (2d), the heating and cooling heat supply pipe (10) ) And the heating and cooling heat recovery pipe 20 is connected to the heating and cooling pipe (5) of the house (4).

따라서, 냉난방 배관(5) 내부의 냉난방수가 냉난방열 회수관(20) - 제2열교환기(증발기)(2d) - 냉난방열 공급관(10) - 냉난방 배관(5)을 연속 순환하며, 이 과정에서 냉난방수가 제2열교환기(2d)의 제2열교환매체와 열교환하여 온도가 낮아진 후 냉난방 배관(5)을 순환하므로 하우스(4) 내부 공기의 온도를 낮추게 된다. 냉난방열 회수관(20)은 제2열교환기(2d)에 직접 연결될 수도 있지만 도면에서는 지열회수부(1)의 지열공급측 라인(1a)에 연결되어 냉난방수를 제2열교환기(2d)에 공급하는 것으로 도시되었다. 제1밸브(V1)가 폐쇄되었기 때문에 냉난방수는 제2열교환기(2d)로 흐를 수밖에 없다.Therefore, the air-conditioning and cooling water in the air-conditioning pipe 5 is continuously circulated through the air-conditioning and heat recovery tube 20-the second heat exchanger (evaporator) 2d-the air-conditioning heat supply pipe 10-the air-conditioning pipe 5 in this process. Since the cooling and cooling water exchanges heat with the second heat exchange medium of the second heat exchanger 2d and the temperature is lowered, the cooling and heating pipe 5 is circulated to lower the temperature of the air inside the house 4. The heating and cooling heat recovery pipe 20 may be directly connected to the second heat exchanger 2d, but in the drawing, it is connected to the ground heat supply side line 1a of the ground heat recovery unit 1 to supply the cooling and heating water to the second heat exchanger 2d. It is shown to be. Since the first valve V1 is closed, the cooling and heating water has no choice but to flow to the second heat exchanger 2d.

한편, 제3열교환매체는 제3열교환매체순환관(3a)을 통해 히트펌프(2)의 제1열교환기(응축기)(2b)와 축열탱크(3)를 연속 순환하며, 이 과정에서 제1열교환기(2b)를 통과하는 제2열교환매체로부터 열을 회수하여 온도가 상승한 후 축열탱크(3)에 저장된 냉난방수(이 냉난방수는 제2밸브(V2)에 의해 하우스(4)의 냉난방 배관(5)으로 공급되지 못하는 상태이다)의 온도를 상승시킨다. Meanwhile, the third heat exchange medium continuously circulates the first heat exchanger (condenser) 2b and the heat storage tank 3 of the heat pump 2 through the third heat exchange medium circulation pipe 3a, and in this process Cooling and cooling water stored in the heat storage tank 3 after the temperature is raised by recovering heat from the second heat exchange medium passing through the heat exchanger 2b (this cooling and cooling water is a heating and cooling pipe of the house 4 by the second valve V2). Raise the temperature of (5).

이와 같이 동절기 주간에는 히트펌프(2)를 이용하여 하우스(4) 내부 온도를 적정 온도로 낮추기 때문에 종래 기술과 비교하면 하우스(4)의 도어나 창을 열지 않으므로 불필요한 열손실을 막을 수 있고 농작물의 재배를 위해 공급하는 이산화탄소의 손실을 막을 수 있다. As such, during the winter day, the internal temperature of the house 4 is lowered to an appropriate temperature by using the heat pump 2, so that the door or window of the house 4 is not opened, so unnecessary heat loss can be prevented. The loss of carbon dioxide supplied for cultivation can be prevented.

그리고, 하우스(4) 내부의 온도 조절과 동시에 축열탱크(3)에서 열을 축열하여 축열탱크(3)로부터 온수를 공급할 수도 있고 급작스럽게 열이 필요한 경우 빠른 시간 내에 온수의 열을 공급할 수도 있다. In addition, heat control may be performed in the heat storage tank 3 to simultaneously control the temperature inside the house 4 to supply hot water from the heat storage tank 3, or to supply heat of hot water within a short time when heat is suddenly required.

또한, 지열 회수부(1)를 가동하지 않으므로 지열 회수부(1)의 가동에 따른 비용을 절감할 수 있다.In addition, since the geothermal heat recovery unit 1 is not operated, the cost associated with the operation of the geothermal heat recovery unit 1 can be reduced.

1. 동절기 야간.1. Winter night.

동절기 야간에는 주간과 달리 하우스(4) 내부에 직사광선이 입사되지 않으므로 본 발명을 가동하여 하우스(4) 내부 온도를 상승시켜야 한다.Unlike the daytime in winter, direct sunlight does not enter the house 4 unlike daytime, so the temperature of the house 4 must be increased by operating the present invention.

도 3에서 보이는 것처럼, 제1,2밸브(V1,V2)를 개방시키고 제3밸브(V3)를 폐쇄시킨다.As shown in FIG. 3, the first and second valves V1 and V2 are opened and the third valve V3 is closed.

즉, 히트펌프(2)의 제2열교환기(증발기)(2d)와 지열 회수부(1)가 하나의 사이클을 구성하여 지열을 열원으로 하여 히트펌프(2)의 제2열교환기(2d)가 열교환하고, 히트펌프(2)의 제1열교환기(응축기)(2b)와 축열탱크(3)가 하나의 사이클을 구성하여 축열탱크(3)에 축열을 열을 회수한 냉난방수(기능적 측면에서 볼 때 하우스(4) 내부의 공기 온도를 높이는 것이므로 난방수라 할 수 있다)가 냉난방 배관(5)을 순환한다.In other words, the second heat exchanger (evaporator) 2d of the heat pump 2 and the geothermal recovery unit 1 constitute one cycle, and the second heat exchanger 2d of the heat pump 2 with the geothermal heat as the heat source. Heat exchange, the first heat exchanger (condenser) 2b of the heat pump (2) and the heat storage tank (3) constitutes one cycle, the cooling and heating water to recover heat to the heat storage tank (3) (functional side In view of the increase in the air temperature inside the house 4 can be referred to as heating water) circulates the heating and cooling pipe (5).

이때, 히트펌프(2)는 압축기(2a) - 제1열교환기(응축기)(2b) - 팽창밸브(2c) - 제2열교환기(증발기)(2d)의 사이클로 운영된다.At this time, the heat pump 2 is operated in a cycle of a compressor 2a-a first heat exchanger (condenser) 2b-an expansion valve 2c-a second heat exchanger (evaporator) 2d.

따라서, 지열 회수부(10)를 통해 지열을 회수한 제1열교환매체는 히트펌프(2)의 제2열교환기(2d)를 통과하는 제2열교환매체와 열교환하고, 제2열교환기(2d)를 통과한 제2열교환매체는 압축기(2a)를 경유하여 제1열교환기(2b)를 통과하면서 축열탱크(3)에 연결되는 제3열교환매체와 열교환한다.Accordingly, the first heat exchange medium that has recovered the geothermal heat through the geothermal heat recovery unit 10 exchanges heat with the second heat exchange medium passing through the second heat exchanger 2d of the heat pump 2, and the second heat exchanger 2d. After passing through the second heat exchange medium passes through the first heat exchanger (2b) via the compressor (2a) and heat exchange with the third heat exchange medium connected to the heat storage tank (3).

히트펌프(2)와 열교환한 제3열교환매체는 축열탱크(3) 내부의 냉난방수의 온도를 상승시키고, 이 냉난방수는 하우스(4)의 냉난방 배관(5)을 순환하면서 하우스(4) 내부 공기의 온도를 상승시킨다. 이때, 축열탱크(3)에 저장된 냉난방수는 동절기 주간시 축열된 상태이기 때문에 빠른 시간 내에 온도가 상승될 수 있다.The third heat exchange medium heat-exchanged with the heat pump (2) increases the temperature of the cooling and heating water in the heat storage tank (3), and the cooling and cooling water circulates through the heating and cooling piping (5) of the house (4) inside the house (4) Raise the temperature of the air. At this time, since the heating and cooling water stored in the heat storage tank (3) is the heat storage state during the winter day, the temperature may be increased in a short time.

즉, 친자연적인 지열과 히트펌프 사이클을 통해 열원을 확보함으로써 공해를 방지할 수 있고 유지비용을 절감할 수 있다.In other words, it is possible to prevent pollution and reduce maintenance costs by securing a heat source through natural geothermal and heat pump cycles.

Claims (4)

지중에 설치되어 지열을 회수하는 지열 회수부(1)와; 압축기, 제1열교환기, 팽창밸브 및 제2열교환기를 포함하며 상기 지열 회수부에 의해 회수된 열과 열교환하는 히트펌프(2)와; 상기 히트펌프에 의해 발생된 열을 축열하는 축열탱크(3)와; 상기 축열탱크의 열을 하우스(4)에 설치된 냉난방 배관(5)에 순환시켜 상기 하우스의 내부 온도를 조절하는 냉난방수 순환관(6)과; 상기 히트펌프의 제1열교환기와 상기 축열탱크를 연결하여 상기 제1열교환기를 통해 온도가 상승한 제3열교환매체를 상기 축열탱크에 순환시키는 제3열교환매체 순환관(3a)과; 상기 하우스 내부의 온도가 적정 온도보다 높을 때 상기 히트펌프에 의해 상기 하우스 내부 온도를 낮추면서 상기 축열탱크에 열을 축열하도록 하는 온도조절부를 포함하고,A geothermal recovery unit (1) installed in the ground and recovering geothermal heat; A heat pump (2) comprising a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger, and heat-exchanging with the heat recovered by the geothermal recovery unit; A heat storage tank (3) for storing heat generated by the heat pump; Cooling and heating circulation pipe (6) for circulating the heat of the heat storage tank to the cooling and heating pipe (5) installed in the house (4) to adjust the internal temperature of the house; A third heat exchange medium circulation pipe (3a) connecting the first heat exchanger of the heat pump and the heat storage tank to circulate the third heat exchange medium whose temperature rises through the first heat exchanger to the heat storage tank; When the temperature inside the house is higher than the appropriate temperature includes a temperature control unit for accumulating heat in the heat storage tank while lowering the internal temperature of the house by the heat pump, 상기 온도조절부는,The temperature control unit, 양측이 상기 히트펌프의 제2열교환기 및 냉난방수 순환관의 공급측 라인(6a)에 각각 유체 연통 가능하게 연결되는 냉난방열 공급관(10), 양측이 상기 히트펌프의 제2열교환기(2d) 및 상기 냉난방수 순환관의 회수측 라인(6b)에 유체 연통 가능하게 연결되는 냉난방열 회수관(20), 상기 지열 회수부와 상기 냉난방열 공급관과 냉난방열 회수관 및 상기 냉난방수 순환관을 개폐하는 밸브수단을 포함하며,Cooling / heating heat supply pipes (10), both sides of which are in fluid communication with the second heat exchanger of the heat pump and the supply side line (6a) of the cooling / heating water circulation pipe, respectively, both sides of the second heat exchanger (2d) of the heat pump; Opening and closing the air-conditioning heat recovery tube 20, the geothermal heat recovery unit and the air-conditioning heat supply pipe, the air-conditioning heat recovery tube and the air-conditioning heat recovery tube and the air-conditioning water circulation pipe which are connected in fluid communication with the recovery side line 6b of the air-conditioning circulation pipe It includes a valve means, 상기 밸브수단은, 상기 지열 회수부의 지열 공급측 라인과 지열 회수측 라인을 개폐하는 제1밸브(V1), 상기 냉난방수 순환관의 공급측 라인과 회수측 라인을 상기 제1밸브와 동일하게 개폐하는 제2밸브(V2), 상기 냉난방열 공급관과 냉난방열 회수관을 상기 제1,2밸브와 반대로 개폐시키는 제3밸브(V3)로 구성되는 것을 특징으로 하는 지열 히트펌프를 이용한 하우스의 냉난방장치.The valve means may include: a first valve V1 for opening and closing the geothermal heat supply side line and the geothermal heat recovery side line of the geothermal heat recovery unit; And a second valve (V2), and a third valve (V3) for opening and closing the air-conditioning heat supply pipe and the air-conditioning heat recovery pipe as opposed to the first and second valves (V3). 삭제delete 삭제delete 청구항 1에 있어서, 상기 하우스 내부의 온도를 검출하는 온도센서(T)와; 상기 온도센서에서 검출되는 온도와 기 저장된 기준 온도를 비교하여 상기 밸브수단을 개폐시키는 컨트롤러(C)가 포함된 것을 특징으로 하는 지열 히트펌프를 이용한 하우스의 냉난방장치.The temperature sensor of claim 1, further comprising: a temperature sensor for detecting a temperature inside the house; And a controller (C) for opening and closing the valve means by comparing the temperature detected by the temperature sensor with a pre-stored reference temperature.
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KR101838797B1 (en) * 2016-05-23 2018-03-14 김일남 Geothermal heating and cooling devices using a single thermal storage tank to perform heating and cooling at the same time and its control method
KR101737395B1 (en) * 2016-11-15 2017-05-22 주식회사 에코원엔지니어링 Greenhouse Heating and Cooling methods using a heat pump share
KR102120464B1 (en) 2019-10-07 2020-06-08 박희문 Heat Pump System Using Hybrid Geothermal Heat Exchanger
CN112378841A (en) * 2020-12-15 2021-02-19 广东火炬检测有限公司 Metal hydrogen sulfide corrosion test device
KR20230068488A (en) 2021-11-10 2023-05-18 지오릿에너지(주) Heat Pump System Using Composite Heat Source and Its Control Method
KR20240043385A (en) 2022-09-27 2024-04-03 숙명여자대학교산학협력단 Greenhouse complex thermal environment control system using waste heat

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