KR101221307B1 - District community cooling system using LNG cold thermal energy - Google Patents

District community cooling system using LNG cold thermal energy Download PDF

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KR101221307B1
KR101221307B1 KR1020100025214A KR20100025214A KR101221307B1 KR 101221307 B1 KR101221307 B1 KR 101221307B1 KR 1020100025214 A KR1020100025214 A KR 1020100025214A KR 20100025214 A KR20100025214 A KR 20100025214A KR 101221307 B1 KR101221307 B1 KR 101221307B1
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storage tank
natural gas
medium
low temperature
refrigerant
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KR20110106019A (en
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김청균
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김청균
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/00075—Indoor units, e.g. fan coil units receiving air from a central station
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators

Abstract

본 발명은 -162℃의 액화천연가스를 상온의 천연가스로 변환하는 과정에서 발생한 냉열에너지가 공기나 냉각수와 같은 열매체와의 열교환 작용에 의해 저온냉매체로 변환될 수 있도록 구성한 냉열교환기, 공기와 같은 열매체를 정화시켜 저장하기 위한 열매체저장탱크, 저온냉매체를 저장하고 송출하기 위한 대형냉매체저장탱크와 압송장치, 액체천연가스를 천연가스로 기화시키기 위한 열교환기, 천연가스를 사용하여 저온냉매체를 추가적으로 생산하기 위한 가스냉방기, 냉열배관을 따라서 이송된 저온냉매체를 수요처 인근지역에 저장하기 위한 중형냉매체저장탱크, 냉방수요 증감에 따라 저온냉매체를 효율적으로 공급하기 위한 소형의 냉매체순환탱크, 냉열에너지 사용량을 계량하기 위한 냉방계량기, 필터와 송풍기가 설치된 냉방기에 의해 저온냉매체를 공급함으로써 실내의 냉방장치에 의한 소음과 진동발생 및 설치공간을 없앨 수 있고, 프레온 냉매사용에 따른 오존층 파괴, 전기사용에 따른 온실가스 발생, 또한 지구 온난화와 기후변화 등의 부작용을 원천적으로 배제할 수 있으며, 특히 바다에 버리고 있는 액화천연가스의 냉열에너지를 회수하여 냉방에너지 자원으로 활용함으로 자원절약 및 환경보호 효과를 기대할 수 있는 액체천연가스 냉열이용 지역집단 냉방에너지 시스템에 관한 것이다. The present invention is a cold heat exchanger, such as air that is configured to convert the cold heat energy generated in the process of converting liquefied natural gas of -162 ℃ into natural gas at room temperature to a low temperature refrigerant medium by heat exchange action with heat medium such as air or cooling water Thermal medium storage tank for purifying and storing the thermal medium, large refrigerant storage tank and storage device for storing and delivering low temperature refrigerant, heat exchanger for vaporizing liquid natural gas into natural gas, and low temperature refrigerant using natural gas. Gas cooler for additional production, medium coolant storage tank for storing low temperature coolant transported along the cold heat pipe in the area near demand, and small coolant circulation tank for efficient supply of low temperature coolant according to the increase or decrease of cooling demand Low by air conditioner, filter and blower installed to measure cold energy consumption By supplying warm cooling medium, noise and vibration generated by indoor air conditioner can be eliminated and installation space can be eliminated, and ozone layer destruction caused by the use of freon refrigerant, greenhouse gas caused by electricity use, and also side effects such as global warming and climate change are fundamental. In particular, the present invention relates to a regional group cooling energy system using liquid natural gas cold heat that can be expected to save resources and protect the environment by recovering the cold heat energy of liquefied natural gas discarded in the sea and using it as a cooling energy resource.

Description

액화천연가스 냉열이용 지역집단 냉방시스템{District community cooling system using LNG cold thermal energy}District community cooling system using LNG cold thermal energy

본 발명은 액화천연가스의 기화과정에서 발생하는 200kcal/kg의 냉열에너지를 이용한 지역집단 냉방시스템에 관한 것으로, 보다 상세하게는 -162℃의 액화천연가스를 상온의 천연가스로 변환하는 과정에서 발생한 냉열에너지가 공기나 냉각수와 같은 열매체와의 열교환 작용에 의해 저온냉매체로 변환될 수 있도록 구성한 냉열교환기, 공기와 같은 열매체를 정화시켜 저장하기 위한 열매체저장탱크, 저온냉매체를 저장하고 송출하기 위한 대형냉매체저장탱크와 압송장치, 액체천연가스를 천연가스로 기화시키기 위한 열교환기, 천연가스를 사용하여 저온냉매체를 추가적으로 생산하기 위한 가스냉방기, 냉열배관을 따라서 이송된 저온냉매체를 수요처 인근지역에 저장하기 위한 중형냉매체저장탱크, 냉방수요 증감에 따라 저온냉매체를 효율적으로 공급하기 위한 소형의 냉매체순환탱크, 냉열에너지 사용량을 계량하기 위한 냉방계량기, 필터와 송풍기가 설치된 냉방기에 의해 저온냉매체를 공급함으로써 실내의 냉방장치에 의한 소음과 진동발생 및 설치공간을 없앨 수 있고, 프레온 냉매사용에 따른 오존층 파괴, 전기사용에 따른 온실가스 발생, 또한 지구 온난화와 기후변화 등의 부작용을 원천적으로 배제할 수 있으며, 특히 바다에 버리고 있는 액화천연가스의 냉열에너지를 회수하여 냉방에너지 자원으로 활용함으로 자원절약 및 환경보호 효과를 기대할 수 있는 액체천연가스 냉열이용 지역집단 냉방에너지 시스템에 관한 것이다. The present invention relates to a regional group cooling system using the cooling heat energy of 200kcal / kg generated during the vaporization of liquefied natural gas, and more particularly, in the process of converting liquefied natural gas of -162 ℃ into natural gas at room temperature. Cold heat exchanger configured to convert cold heat energy into low temperature cool medium by heat exchange effect with heat medium such as air or cooling water, heat medium storage tank for purifying and storing heat medium such as air, and large size for storing and delivering low temperature cool medium Refrigerant storage tank and pumping device, heat exchanger for vaporizing liquid natural gas into natural gas, gas cooler for additional production of low-temperature refrigerant using natural gas, and low-temperature refrigerant transferred along the cold heat pipe Medium-sized refrigerant storage tanks for storage in air, efficiently supplying low-temperature refrigerants as demand for cooling increases It is possible to eliminate the noise and vibration generated by the cooling device in the room and the installation space by supplying the low-temperature refrigerant by a small refrigerant cell circulation tank for cooling, a cooling meter for measuring the amount of cooling heat energy, and a cooler equipped with a filter and a blower. Side effects such as destruction of ozone layer, generation of greenhouse gas caused by electricity use, and global warming and climate change due to the use of freon refrigerant can be excluded.In particular, cooling energy resources are recovered by recovering the cold heat energy of liquefied natural gas that is thrown away at sea. The present invention relates to a regional group cooling energy system using liquid natural gas cold heat that can be expected to save resources and protect the environment.

종래의 에어컨에는 전기에너지와 프레온 냉매를 공기와의 열교환 작용에 의해 생산한 저온공기 냉매체를 냉방공간에 공급하는 냉방장치, 심야전력을 사용하여 제빙한 얼음을 탱크에 저장하였다가 녹는 과정에서 발생한 빙축열에 의해 저온공기 냉매체를 공급하는 빙축열 냉방장치, 가스를 태워서 생산한 고온에너지에 의해 저온공기 냉매체를 공급하는 가스냉방장치 등이 있다.Conventional air conditioners have a cooling device for supplying a low temperature air refrigerant body, which is produced by heat exchange between electric energy and freon refrigerant, to a cooling space. The ice storage heat-cooling device for supplying the low-temperature air refrigerant body by the ice storage heat, and the gas cooling device for supplying the low-temperature air refrigerant body by the high-temperature energy produced by burning the gas.

따라서 종래의 에어컨은 압축기, 응축기, 팽창밸브, 증발기, 전기모터, 냉각팬 등을 파이프로 연결한 밀폐형 냉방장치로 전기에너지와 프레온 냉매를 사용하여 냉방에너지를 생산하기 때문에 전기모터 구동 압축기와 냉각팬에 의한 전력소비가 많고, 진동과 소음발생으로 인한 스트레스 유발, 에어컨의 설치위치에 따른 소음발생과 누수로 인한 이웃간의 분쟁, 에어컨 설치를 위한 실내공간을 별도로 확보해야 하는 문제점이 제기되었다.Therefore, conventional air conditioners are hermetic air conditioners that connect compressors, condensers, expansion valves, evaporators, electric motors, and cooling fans with pipes to produce cooling energy using electric energy and freon refrigerants. The problem has been raised due to high power consumption, stress caused by vibration and noise generation, noise caused by the installation location of the air conditioner, disputes caused by leaks, and neighboring space due to water leakage.

특히, 하절기에 집중된 에어컨 냉방수요를 충족하기 위한 발전소 건설과 이에 따른 더 많은 화석연료의 사용, 프레온과 같은 냉매사용에 따른 지구온난화와 기후변화의 가속, 환경오염과 생태계 파괴로 연결되면서 UN 주도하의 국제협약에 의해 모든 국가는 CO2 발생량을 줄이고, 프레온 냉매사용을 금지할 정도로 많은 문제점을 제기하고 있다. In particular, the construction of a power plant to meet the demand for air conditioning and air concentrating in the summer, the use of more fossil fuels, the global warming and acceleration of climate change caused by the use of refrigerants such as freon, and the environmental pollution and the destruction of ecosystems, By convention all countries are CO 2 Many problems have been raised to reduce the generation amount and prohibit the use of freon refrigerant.

본 발명은 상기한 바와 같은 종래의 제반 문제점을 해소하기 위해 창안된 것으로서, 그 목적은 액상의 액화천연가스를 기상의 천연가스로 변환하는 과정에서 발생하는 200kcal/kg의 냉열에너지를 활용하여 고온의 열매체를 저온의 냉매체로 온도를 떨어뜨리기 위한 냉열교환기, 천연가스열교환기, 가스냉방기, 열매체저장탱크, 대형냉매체저장탱크, 중형냉매체저장탱크, 냉매체순환탱크, 압송장치, 정압장치, 수분리기, 유분리기, 필터, 냉방계량기, 냉방기, 가스배관, 냉열배관 등을 시스템적으로 연결하여 생산한 저가의 저온냉매체 냉방에너지를 아파트, 공장, 빌딩과 같은 대규모 냉방수요처에 효율적으로 공급할 수 있는 액화천연가스 냉열이용 지역집단 냉방시스템을 제공하고자 한다.The present invention has been devised to solve the conventional problems as described above, the purpose of which is to utilize a high temperature of 200kcal / kg of cold heat energy generated in the process of converting liquid liquefied natural gas into gaseous natural gas Cold heat exchanger, natural gas heat exchanger, gas cooler, thermal medium storage tank, large medium medium storage tank, medium medium medium storage tank, refrigerant medium circulation tank, pressure feeding device, static pressure device, water separator Liquefaction that can efficiently supply low-temperature coolant cooling energy produced by systemically connecting oil separator, filter, air conditioner, air conditioner, gas piping, and cooling piping to large-scale cooling demands such as apartments, factories, buildings, etc. It aims to provide a regional group cooling system using natural gas cooling.

현재는 바다에 모두 버리는 액화천연가스의 냉열에너지를 회수하기 위해 다수의 냉열교환기, 열매체저장탱크, 냉매체저장탱크 등을 시스템적으로 연계하여 사용하므로 종래의 에어컨과는 달리 화석연료 및 프레온 냉매에 의한 환경오염원 및 온실가스 발생자체가 없으므로 국제협약을 100% 준수할 수 있고, 냉방용으로 수입되는 에너지를 줄이고, 냉열에너지를 회수하여 냉방에너지원으로 사용하므로 폐열 활용도를 높이고, LNG 저장탱크에서 지속적으로 발생하는 무공해 냉열에너지를 활용할 수 있는 액화천연가스 냉열이용 냉방시스템을 아파트와 같은 밀집지역에 집단으로 설치함으로써 냉방에너지의 효율성과 경제성, 유지비용을 줄이는 획기적인 냉방시스템 네트워크를 제공할 수 있다.Currently, in order to recover the cold heat energy of liquefied natural gas discarded in the sea, a large number of cold heat exchangers, thermal medium storage tanks, and refrigerant medium storage tanks are used in a systemic manner, so unlike fossil fuels and freon refrigerants, unlike conventional air conditioners, As there is no environmental pollution source and greenhouse gas generated by itself, it can comply with international agreement 100%, reduce energy imported for cooling, recover cooling heat energy and use it as cooling energy source, increase utilization of waste heat, and continuously in LNG storage tank. By installing liquefied natural gas cooling heat utilization cooling system collectively in dense areas such as apartments, which can take advantage of the pollution-free cooling energy generated by the air conditioner, it is possible to provide an innovative cooling system network that reduces the efficiency, economic efficiency and maintenance cost of cooling energy.

액화천연가스 냉열이용 지역집단 냉방시스템은 압송장치, 열교환장치 등을 LNG 저장탱크 지역에 설치하고, 냉방에너지를 필요로 하는 아파트, 공장, 빌딩과 같은 실내공간에는 냉열배관만으로 연결하여 저온냉매체를 공급하기 때문에 소음과 진동 발생이 전혀 없고, 냉열배관이 노출되지 않도록 천정과 벽면에 내장함으로써 종래의 에어컨과는 달리 실내 설치공간을 별도로 요구하지 않아 공간 활용도가 높은 친환경적 냉방시스템을 제공하고자 한다.Local group cooling system using liquefied natural gas is installed in LNG storage tank area by pumping device and heat exchanger, and connects low temperature cooling medium by connecting only cold heat pipe to indoor space such as apartments, factories and buildings that require cooling energy. Since there is no noise and vibration, it is installed on the ceiling and the wall so that the cooling pipe is not exposed. Therefore, unlike the conventional air conditioner, it does not require an indoor installation space to provide an environment-friendly cooling system with high space utilization.

이러한 본 발명의 목적을 달성하기 위하여, LNG 저장탱크에 저장하기 직전에 설치한 냉열교환기를 통과한 -162℃의 액화천연가스는 공기와 같은 고온열매체와의 열교환 작용에 의해 다량의 저온냉매체를 생산하여 대형냉매체저장탱크로 이송하고, 또한 액화천연가스 저장탱크에 저장된 액화천연가스를 또 다른 냉열교환기에 보내져 열교환 과정에 발생한 냉열에너지로 고온열매체를 저온냉매체로 바뀌어 대형냉매체저장탱크로 이송하여 저장하였다가, 냉방에너지 수요처의 수요변동에 따라 적절히 대응할 수 있는 저온냉매체 압송장치, 아파트처럼 집단으로 형성된 냉방수요처 인근지역에 중형냉매체저장탱크, 냉매체순환탱크, 수분리기, 유분리기, 냉방계량기, 냉방기 등을 냉열배관으로 연결하여 밀집지역에 냉방에너지를 효과적으로 공급할 수 있는 프로세스 냉방시스템을 구축함으로써 진동과 소음을 배제하고, 실내의 설치공간을 없애고, 온실가스 발생과 프레온 냉매사용을 없앤 무공해의 친환경적 냉방에너지 시스템, 폐냉열에너지를 활용한 액화천연가스 냉열이용 냉방시스템을 지역집단 네트워크 구축을 특징으로 한다.In order to achieve the object of the present invention, the liquefied natural gas of -162 ℃ passed through a cold heat exchanger installed just before storage in the LNG storage tank is a large amount of low temperature refrigerant by heat exchange action with a high temperature heat medium such as air Produced and transported to a large refrigerant storage tank, and liquefied natural gas stored in the liquefied natural gas storage tank is sent to another cold heat exchanger. Low temperature refrigerant pumping device that can respond appropriately to the demand fluctuation of cooling energy demand source, medium coolant storage tank, refrigerant circulating tank, water separator, oil separator, cooling By connecting meter and air conditioner with cold heat pipe, it is possible to effectively supply cooling energy to dense areas. By establishing a process cooling system, it eliminates vibration and noise, eliminates the installation space in the room, cleans the environment-friendly cooling energy system that eliminates greenhouse gas generation and the use of freon refrigerant, and uses a cooling system for liquefied natural gas that uses waste cooling energy. It is characterized by building a regional group network.

본 발명은 냉열교환기를 사용하여 액화천연가스를 천연가스로 변환하는 열교환 과정에서 발생하는 200kcal/kg의 냉열에너지를 회수하여 생산한 저온냉매체를 냉방수요가 많은 아파트나 빌딩, 공장 등에 저장탱크, 압송장치, 순환장치, 정압장치, 냉방기 등을 효율적으로 연결한 냉방시스템 네트워크 구축을 통해 무공해 청정의 냉방에너지를 지역집단으로 공급함으로써 현재 모두 버리고 있는 폐냉열에너지 활용에 따른 자원절약은 물론, 온실가스와 프레온 가스의 배출량을 배제한 냉방에너지를 지역집단으로 공급하기 때문에 공급효율은 높고 저렴하며, 실내에 별도의 설치공간이 필요 없고, 소음과 진동발생 요소가 없으므로 조용하고, 또한 소음발생과 냉각수 누수에 따른 이웃간의 분쟁요소가 없어지며, 전기사용량이 거의 없으므로 냉방수요를 위한 발전소 추가건설이 필요없어 화석연료 수입량 감소에 따른 자원절약, 폐냉열에너지 활용에 따른 경제성, 냉열배관에 의한 냉방에너지 공급으로 화재발생 위험요소의 감소, 전체적으로 높은 에너지 효율, 유지비용을 줄이는 효과를 기대할 수 있다. The present invention is a storage tank, such as an apartment, a building, a factory, or the like, in which a low-temperature refrigerant produced by recovering 200 kcal / kg of cold heat energy generated during a heat exchange process of converting liquefied natural gas into natural gas using a cold heat exchanger, By constructing a network of cooling systems that efficiently connects pressure pumps, circulators, static pressure devices, and air conditioners, supplying clean, clean energy to local groups, saving resources by utilizing the waste cooling energy that is currently being discarded, as well as greenhouse gases. As it supplies cooling energy excluding the emission of gas and freon gas to local groups, the supply efficiency is high and inexpensive, and there is no need for a separate installation space in the room, and it is quiet because there are no noise and vibration generating elements. There is no dispute between neighbors and there is almost no electricity consumption. There is no need for additional power plants, so it is expected to save resources by reducing fossil fuel imports, economics by utilizing waste cooling energy, and supply cooling energy by cooling piping to reduce the risk of fire, overall high energy efficiency, and reduce maintenance costs. Can be.

도 1은 종래의 에어컨 계통도
도 2는 본 발명의 액화천연가스 냉열이용 지역집단 냉방시스템을 나타낸 기본 계통도
도 3은 본 발명의 제1 실시예 구성을 나타낸 계통도
도 4는 본 발명의 액화천연가스 냉열이용 지역집단 냉방시스템을 나타낸 응용 계통도
도 5는 본 발명의 제2 실시예 구성을 나타낸 계통도1 is a conventional air conditioning system diagram
Figure 2 is a basic system diagram showing a regional group cooling system using liquefied natural gas cold heat of the present invention
Figure 3 is a schematic diagram showing the configuration of a first embodiment of the present invention
Figure 4 is an application system diagram showing a regional group cooling system using liquefied natural gas cold heat of the present invention
Figure 5 is a schematic diagram showing the configuration of a second embodiment of the present invention

이하, 첨부된 도면을 참조로 하여 본 발명의 구성을 실시예에 따라 상세히 설명하면 다음과 같다.Hereinafter, the configuration of the present invention in detail with reference to the accompanying drawings as follows.

도 1에 도시된 것과 같이, 기존의 에어컨(100)은 압축기(10)에서 프레온과 같은 가스상의 냉매를 압축하여 파이프(11)를 타고 응축기(12)로 보내고, 상기 응축기(12)에서 모터(13) 구동 냉각팬(14)을 사용하여 외부유입 저온공기 냉매체와의 열교환 작용에 의해 액상으로 변환된 액상냉매(RL)를 팽창밸브(15)로 보내고, 상기 팽창밸브(15)의 팽창작용에 의해 저온으로 떨어진 액상냉매가 증발기(16)를 통과하는 과정에 모터(13') 구동 냉각팬(14')에 의해 실내의 고온공기 열매체와의 열교환 작용에 의해 온도가 떨어진 저온공기 냉매체로 바꾸어 실내로 공급하여 냉방을 하도록 하고, 상기 증발기(16)에서 열교환 작용에 의해 다시 가스상으로 변환된 가스냉매(RG)를 압축기(10)로 보내는 밀폐 사이클 냉방구조이다.As shown in FIG. 1, the conventional air conditioner 100 compresses a gaseous refrigerant such as a freon in the compressor 10 and sends the refrigerant to the condenser 12 through the pipe 11, and in the condenser 12 the motor ( 13) The liquid refrigerant R L , which is converted into a liquid phase by a heat exchange effect with an external inlet low temperature air refrigerant body, is sent to the expansion valve 15 by using the driving cooling fan 14, and the expansion valve 15 is expanded. As the liquid refrigerant dropped to low temperature by the action passes through the evaporator 16, the temperature is lowered by the heat exchange action with the high temperature air heat medium in the room by the motor 13 'driving cooling fan 14'. In other words, it is supplied to the room to be cooled, and the closed cycle cooling structure for sending the gas refrigerant R G converted into the gas phase by the heat exchange action from the evaporator 16 to the compressor 10.

도 2는 본 발명에 의해 액화천연가스 냉열이용 지역집단 냉방시스템을 나타낸 기본 계통도로, 이에 도시된 바와 같이 본 발명은 상기 1번 냉열교환기(17)에 저온열매체(TL)를 유입시키기 위해 필터(18), 수분리기(19), 유분리기(20)를 거치는 동안에 이물질, 수분, 유분을 모두 제거한 공기와 같은 고온열매체(TH)를 열매체저장탱크(21)에 저장하고, 상기 열매체저장탱크(21)에 유입된 저온냉각수(WL)와 고온열매체 사이의 열교환 작용에 의해 온도가 떨어진 저온열매체를 1번 냉열교환기(17), 2번 냉열교환기(22), 3번 냉열교환기(23), 천연가스열교환기(24), 가스냉방기(25)로 각각 이송하고, 상기 열매체저장탱크(21)에 유입된 저온냉각수는 열교환 작용에 의해 고온냉각수(WH)로 바뀌어 외부로 방출한다. Figure 2 is a basic system diagram showing a local group cooling system using liquefied natural gas cold heat by the present invention, as shown in the present invention is a filter for introducing a low temperature heat medium (T L ) to the first cold heat exchanger (17) 18, the high-temperature heat medium (T H ), such as air from which all the foreign matter, water, and oil are removed during the water separator 19 and the oil separator 20, is stored in the heat medium storage tank 21, and the heat medium storage tank The low temperature heat medium whose temperature has dropped due to the heat exchange action between the low temperature cooling water (W L ) and the high temperature heat medium introduced into (21) is subjected to the first cold heat exchanger (17), the second cold heat exchanger (22), and the third cold heat exchanger (23). The natural gas heat exchanger (24) and the gas cooler (25) are respectively transferred, and the low temperature cooling water introduced into the heat medium storage tank (21) is converted into high temperature cooling water (W H ) by a heat exchange action and discharged to the outside.

상기 1번 냉열교환기(17)로 유입된 저온열매체(TL)는 배관(26)을 따라서 유입된 -162℃ 액화천연가스와의 열교환 작용에 의해 저온냉매체(CC)로 바뀌어 냉열배관(27)을 통해 대형냉매체저장탱크(28)로 이송되고, 상기 1번 냉열교환기(17)로 유입된 액화천연가스 중에서 열교환 작용에 의해 가스상으로 변환된 천연가스(NG)는 가스배관(29)을 타고 송출되고, 액상으로 남아있는 액화천연가스(LNG)는 LNG 저장탱크(30)로 보내져 저장된다.The low temperature heat medium (T L ) introduced into the first cold heat exchanger (17) is converted into a low temperature cool medium (C C ) by a heat exchange action with -162 ° C liquefied natural gas introduced along the pipe (26), thereby cooling the heat pipe ( 27 is transferred to the large refrigerant storage tank 28, the natural gas (NG) is converted to the gas phase by the heat exchange action of the liquefied natural gas introduced into the first cold heat exchanger 17 is a gas pipe (29) Liquefied natural gas (LNG) that is sent out, and remains in the liquid phase is sent to the LNG storage tank 30 is stored.

또한, 2번 냉열교환기(22)에는 LNG 저장탱크(30)에서 공급한 -162℃의 액화천연가스와 상기 열매체저장탱크(21)에서 공급한 저온열매체 사이의 열교환 작용에 의해 발생된 저온냉매체는 냉열배관(27)을 통해 대형냉매체저장탱크(28)로 이송되고, 열교환 과정에서 발생한 천연가스는 가스배관(29)을 타고 송출되고, 아직도 액상으로 남아있는 액화천연가스는 3번 냉열교환기(23)로 보내진다. In addition, the second cold heat exchanger 22 has a low temperature coolant generated by a heat exchange action between -162 ° C liquefied natural gas supplied from the LNG storage tank 30 and a low temperature heat medium supplied from the heat medium storage tank 21. Is transferred to the large refrigerant storage tank 28 through the cold heat pipe 27, the natural gas generated during the heat exchange process is sent out through the gas pipe 29, the liquefied natural gas still in the liquid phase is three times cold heat exchanger Is sent to (23).

또한, 3번 냉열교환기(23)에는 2번 냉열교환기(22)에서 공급한 -162℃의 액화천연가스와 상기 열매체저장탱크(21)에서 공급한 저온열매체 사이의 열교환 작용에 의해 발생한 저온냉매체는 냉열배관(27)을 통해 대형냉매체저장탱크(28)로 이송되고, 열교환 과정에서 발생한 천연가스는 가스배관(29)을 타고 송출되고, 아직도 액상으로 남아있는 액화천연가스는 천연가스열교환기(24)로 보내진다. In addition, the third cold heat exchanger (23) is a low temperature cool medium generated by heat exchange between the liquefied natural gas at -162 ° C supplied by the second cold heat exchanger (22) and the low temperature heat medium supplied from the heat medium storage tank (21). Is transferred to the large refrigerant storage tank 28 through the cold heat pipe 27, natural gas generated during the heat exchange process is sent out through the gas pipe 29, the liquefied natural gas still in the liquid phase is a natural gas heat exchanger Is sent to (24).

또한, 천연가스열교환기(24)에는 3번 냉열교환기(23)에서 공급한 -162℃의 액화천연가스와, 상기 열매체저장탱크(21)에서 공급한 저온열매체 및 바닷물과 같은 고온냉각수 사이의 열교환 작용에 의해 발생한 저온냉매체는 냉열배관(27)을 통해 대형냉매체저장탱크(28)로 이송되고, 열교환 과정에서 발생한 천연가스는 가스배관(29)을 타고 송출되고, 열교환 작용에 의해 온도가 떨어진 저온냉각수는 상기 열매체저장탱크(21)와 상기 대형냉매체저장탱크(28)의 저온냉각수로 각각 공급되어 열교환 작용을 하도록 구성된다.In addition, the natural gas heat exchanger (24) is a heat exchange between the liquefied natural gas of -162 ℃ supplied from the third cold heat exchanger (23), and the low temperature heat medium and seawater water supplied from the heat medium storage tank 21 The low temperature refrigerant generated by the action is transferred to the large refrigerant storage tank 28 through the cold heat pipe 27, and the natural gas generated in the heat exchange process is sent out through the gas pipe 29, and the temperature is increased by the heat exchange action. The separated low temperature coolant is supplied to the low temperature coolant of the heat medium storage tank 21 and the large medium coolant storage tank 28 so as to perform a heat exchange function.

또한, 상기 대형냉매체저장탱크(28)의 저온냉매체를 또 다른 방법으로 확보하기 위해 가스냉방기(25)를 가스배관(29) 선상에 설치하고, 상기 가스냉방기(25)에 천연가스를 공급하여 연소작용에 의해 고온에너지를 생산하고, 상기 열매체저장탱크(21)에서 공급한 저온열매체를 열교환 작용에 의해 저온냉매체로 변환시켜 냉열배관(27)을 통해 대형냉매체저장탱크(28)로 이송하여 지역집단 냉방시스템에 필요한 저온냉매체를 추가적으로 확보한다.In addition, in order to secure the low-temperature refrigerant of the large refrigerant storage tank 28 by another method, a gas cooler 25 is installed on the gas pipe 29 and natural gas is supplied to the gas cooler 25. To produce high-temperature energy by combustion, and convert the low-temperature heat medium supplied from the heat medium storage tank 21 into a low-temperature cool medium by heat exchange to transfer it to the large-size medium storage tank 28 through the cold heat pipe 27. To secure additional low-temperature refrigerants for the regional group cooling system.

또한, 상기 대형냉매체저장탱크(28)에 저장된 저온냉매체의 저온성을 지속적으로 유지하기 위해 상기 천연가스열교환기(24)에서 발생한 저온냉각수를 대형냉매체저장탱크(28)의 원통주변을 휘감도록 유입시켜 열교환 작용을 한 후에 온도가 상승된 고온냉각수는 외부로 방출된다. In addition, in order to continuously maintain the low temperature of the low temperature refrigerant stored in the large medium storage tank 28, the low temperature coolant generated in the natural gas heat exchanger 24 is used to surround the cylinder of the large medium storage medium 28. After the heat-exchanging action is carried out by entangling, the hot cooling water whose temperature is raised is discharged to the outside.

또한, 대형냉매체저장탱크(28)에 저장된 저온냉매체는 송풍기나 압축기와 같은 압송장치(31)에 의해 냉방수요가 많은 아파트, 빌딩, 공단지역에 매설된 중형냉매체저장탱크(32)로 압송되어 저장하고, 상기 중형냉매체저장탱크(32)에 저장된 저온냉매체는 냉방 수요처에 적합한 압력으로 조정할 수 있도록 구성된 정압장치(33)를 거쳐 소규모의 냉매체순환탱크(34)로 이송되어 잠시 체류하고, 상기 냉매체순환탱크(34)의 저온냉매체를 최종 수요처에 공급하기 직전에 필터(18'), 수분리기(19'), 냉방계량기(35)를 거쳐 실내의 천정이나 벽면공간에 설치한 개별 냉방기(36)에 의해 냉방에너지가 공급되고, 냉방부하의 변동에 따라 남아도는 저온냉매체는 회수되어 이웃하는 또 다른 냉매순환탱크(34',34'')로 보내져 저온냉매체를 효율적으로 관리할 수 있는 냉열에너지 이용 지역집단 냉방시스템을 구성한다.In addition, the low-temperature refrigerant stored in the large refrigerant storage tank 28 is a medium refrigerant storage tank 32 buried in apartments, buildings, and industrial areas with high cooling demand by a pressure feeding device 31 such as a blower or a compressor. The low temperature refrigerant stored in the medium refrigerant storage tank 32 is transferred to the small refrigerant body circulation tank 34 through a constant pressure device 33 configured to be adjusted to a pressure suitable for cooling demand. In addition, the low-temperature refrigerant of the refrigerant body circulation tank 34 is installed in the ceiling or wall space of the room via a filter 18 ', a water separator 19', and an air conditioner 35 immediately before supplying to the final demand destination. The cooling energy is supplied by the individual air conditioners 36, and the low temperature refrigerant remaining after the change of the cooling load is recovered and sent to another neighboring refrigerant circulation tank 34 ', 34' 'to efficiently cool the low temperature refrigerant. Cool heat energy that can be managed by Configure the local population used cooling system.

도 3은 본 발명의 제1 실시예를 나타낸 액화천연가스 냉열이용 지역집단 냉방시스템의 계통도이다. 도 3의 특징은 가스냉방기(25)의 설치위치를 제외하고 1번 냉열교환기(17), 2번 냉열교환기(22), 3번 냉열교환기(23), 천연가스열교환기(24), 열매체저장탱크(21), 대형냉매체저장탱크(28), LNG 저장탱크(30), 압송장치(31) 이전의 냉방에너지 생산시스템과 중형냉매체저장탱크(32) 이후의 냉방너지 공급시스템은 도 2와 같지만, 저온냉매체를 추가로 확보하기 위해 가스냉방기(25')를 중형냉매체저장탱크(32) 이전에 설치한 연결시스템이 다르다.3 is a system diagram of a regional group cooling system using liquefied natural gas cooling heat according to a first embodiment of the present invention. 3 is characterized by the first cold heat exchanger 17, the second cold heat exchanger 22, the third cold heat exchanger 23, the natural gas heat exchanger 24, and the heat medium except for the installation position of the gas cooler 25. The cooling energy production system before the tank 21, the large refrigerant storage tank 28, the LNG storage tank 30, and the pressure feeder 31 and the cooling energy supply system after the medium refrigerant storage tank 32 are shown in FIG. The same as, but the connection system in which the gas cooler 25 'is installed before the medium coolant storage tank 32 in order to further secure the low temperature coolant.

도 3에서 저온냉매체를 별도로 생산하기 위해 가스냉방기(25')를 중형냉매체저장탱크(32) 이전에 설치하고, 가스배관(29)을 통과하는 천연가스를 유입시켜 고온에너지를 생산하고, 상기 가스냉방기(25')에 고온열매체를 공급하기 위해 필터(18), 수분리기(19), 유분리기(20)를 장착한 소형의 열매체저장탱크(21')를 연결하고, 상기 가스냉방기(25')에서 생산한 저온냉매체를 중형냉매체저장탱크(32)에 저장할 수 있도록 연결하고, 상기 중형냉매체저장탱크(32) 이후로 연결한 냉방에너지 공급시스템은 도 2와 동일하게 구성한 냉열이용 지역집단 냉방에너지 공급시스템 사례이다.In FIG. 3, a gas cooler 25 ′ is installed before the medium coolant storage tank 32 to separately produce the low temperature refrigerant, and natural gas flowing through the gas pipe 29 is introduced to produce high temperature energy. In order to supply a high temperature heat medium to the gas cooler 25 ', a small heat medium storage tank 21' equipped with a filter 18, a water separator 19 and an oil separator 20 is connected, and the gas cooler ( The cooling energy supply system connected to the low-temperature refrigerant produced in 25 ') to be stored in the medium-sized medium storage tank 32, and connected to the medium-medium medium storage tank 32 after the cooling energy supply system configured in the same manner as in FIG. This is an example of a district group cooling energy supply system.

도 4는 본 발명에 의해 액화천연가스 냉열이용 지역집단 냉방시스템을 나타낸 응용 계통도로, 이에 도시된 바와 같이 본 발명은 상기 1번 냉열교환기(17)에 저온열매체를 유입시키기 위해 필터(18), 수분리기(19), 유분리기(20)를 거치는 동안에 깨끗해진 공기와 같은 고온열매체를 열매체저장탱크(21)에 저장하고, 상기 열매체저장탱크(21)에 유입된 저온냉각수와 고온열매체 사이의 열교환 작용에 의해 온도가 떨어진 저온열매체를 1번 냉열교환기(17), 2번 냉열발생기(22), 천연가스열교환기(24), 가스냉방기(25)로 각각 이송하고, 상기 열매체저장탱크(21)에 유입된 저온냉각수는 열교환 작용에 의해 고온냉각수로 바뀌어 외부로 방출된다. 4 is an application system diagram showing a local group cooling system using liquefied natural gas cold heat according to the present invention, as shown in the present invention, the filter 18 for introducing a low temperature heat medium into the first cold heat exchanger 17, The hot heat medium, such as air, which has been cleaned while passing through the water separator 19 and the oil separator 20, is stored in the heat medium storage tank 21, and the heat exchange between the low temperature coolant introduced into the heat medium storage tank 21 and the high temperature heat medium. The low temperature heat medium whose temperature has dropped due to the action is transferred to the first cold heat exchanger 17, the second cold heat generator 22, the natural gas heat exchanger 24, and the gas cooler 25, respectively, and the heat medium storage tank 21. The low temperature cooling water introduced into is converted into high temperature cooling water by the heat exchange action and is discharged to the outside.

상기 1번 냉열교환기(17)로 유입된 저온열매체는 -162℃ 액화천연가스와의 열교환 작용에 의해 저온냉매체로 바뀌어 냉열배관(27)을 통해 대형냉매체저장탱크(28)로 이송되고, 상기 1번 냉열교환기(17)로 유입된 액화천연가스 중에서 열교환 작용에 의해 가스상으로 변환된 천연가스는 가스배관(29)을 타고 송출되고, 액상으로 남아있는 액화천연가스는 LNG 저장탱크(30)로 보내져 저장된다. The low temperature heat medium introduced into the first cold heat exchanger 17 is converted into a low temperature cool medium by a heat exchange effect with -162 ° C liquefied natural gas, and is transferred to the large cool medium storage tank 28 through the cold heat pipe 27. Natural gas converted into gaseous phase by heat exchange action among the liquefied natural gas introduced into the first cold heat exchanger 17 is sent out through the gas pipe 29, and the liquefied natural gas remaining in the liquid phase is transferred to the LNG storage tank 30. Sent and stored.

또한, 천연가스열교환기(24)에는 LNG 저장탱크(30)에서 공급한 -162℃의 액화천연가스와 바닷물과 같은 고온냉각수 사이의 열교환 작용에 의해 발생한 천연가스는 가스배관(29)을 타고 송출되고, 유입된 고온냉각수는 열교환 작용에 의해 온도가 떨어진 저온냉각수로 바뀌어 2번 냉열교환기(22)로 보내진다.In addition, the natural gas heat exchanger 24 sends natural gas generated by the heat exchange action between -162 ° C liquefied natural gas supplied from the LNG storage tank 30 and high-temperature cooling water such as seawater through the gas pipe 29. Then, the introduced high temperature coolant is converted into low temperature coolant whose temperature is dropped by the heat exchange action, and is sent to the second cold heat exchanger 22.

또한, 2번 냉열교환기(22)에는 천연가스열교환기(24)에서 공급한 저온냉각수와, 상기 열매체저장탱크(21)에서 공급한 저온열매체 사이의 열교환 작용에 의해 발생된 저온냉매체는 냉열배관(27)을 통해 대형냉매체저장탱크(28)로 이송되고, 열교환 과정에서 온도가 약간 올라간 저온냉각수는 상기 열매체저장탱크(21)의 저온냉각수로 공급되어 고온열매체와 열교환 작용을 하도록 한다.In addition, in the second cold heat exchanger 22, the low temperature coolant generated by the heat exchange action between the low temperature coolant supplied from the natural gas heat exchanger 24 and the low temperature heat medium supplied from the heat medium storage tank 21 is a cold heat pipe. The low temperature cooling water, which is transferred to the large refrigerant storage tank 28 through the 27 and the temperature slightly increased during the heat exchange process, is supplied to the low temperature cooling water of the heat medium storage tank 21 to exchange heat with the high temperature heat medium.

또한, 상기 대형냉매체저장탱크(28)의 저온냉매체를 또 다른 방법으로 확보하기 위해 가스냉방기(25)를 가스배관(29) 선상에 설치하고, 상기 가스냉방기(25)에 천연가스를 공급하여 연소작용에 의해 고온에너지를 생산하고, 상기 열매체저장탱크(21)에서 공급한 저온열매체를 열교환 작용에 의해 저온냉매체로 변환시켜 냉열배관(27)을 통해 대형냉매체저장탱크(28)로 이송하여 지역집단 냉방시스템에 필요한 저온냉매체를 추가적으로 확보한다.In addition, in order to secure the low-temperature refrigerant of the large refrigerant storage tank 28 by another method, a gas cooler 25 is installed on the gas pipe 29 and natural gas is supplied to the gas cooler 25. To produce high-temperature energy by combustion, and convert the low-temperature heat medium supplied from the heat medium storage tank 21 into a low-temperature cool medium by heat exchange to transfer it to the large-size medium storage tank 28 through the cold heat pipe 27. To secure additional low-temperature refrigerants for the regional group cooling system.

또한, 상기 대형냉매체저장탱크(28)에 저장된 저온냉매체의 저온성을 지속적으로 유지하기 위해 상기 배관(26)을 통과하는 -162℃의 액화천연가스를 대형냉매체저장탱크(28)의 원통주변을 휘감도록 유입시켜 열교환 작용에 의해 발생한 천연가스는 가스배관(29)을 통해 송출하고, 액상으로 남아있는 액화천연가스는 LNG 저장탱크(30)로 보내져 저장한다. In addition, the liquefied natural gas of -162 ° C passing through the pipe 26 to maintain the low temperature of the low-temperature refrigerant stored in the large refrigerant storage tank 28 of the large refrigerant storage tank 28 Natural gas generated by the heat exchange action by flowing around the cylinder is sent out through the gas pipe 29, and the liquefied natural gas remaining in the liquid phase is sent to the LNG storage tank 30 for storage.

또한, 대형냉매체저장탱크(28)에 저장된 저온냉매체는 송풍기나 압축기와 같은 압송장치(31)에 의해 아파트, 빌딩, 공단지역에 매설된 중형냉매체저장탱크(32)로 압송되고, 상기 중형냉매체저장탱크(32)에 저장된 저온냉매체는 냉방 수요처에 적합한 압력으로 조정할 수 있도록 구성된 정압장치(33)를 거쳐 소규모의 냉매체순환탱크(34)로 이송되어 잠시 체류하고, 상기 냉매체순환탱크(34)의 저온냉매체를 최종 수요처에 공급하기 직전에 필터(18'), 수분리기(19'), 냉방계량기(35)를 거쳐 실내의 개별 냉방기(36)에 의해 냉방에너지가 공급되고, 냉방부하의 변동에 따라 남아도는 저온냉매체는 회수되어 이웃하는 또 다른 냉매순환탱크(34',34'')로 보내져 저온냉매체를 효율적으로 관리할 수 있는 냉열에너지 이용 지역집단 냉방시스템을 구성한다.In addition, the low-temperature refrigerant stored in the large refrigerant storage tank 28 is pumped to the medium refrigerant storage tank 32 buried in the apartment, building, industrial area by a pressure feeding device 31, such as a blower or a compressor, The low-temperature refrigerant stored in the medium-sized refrigerant storage tank 32 is transferred to the small refrigerant body circulation tank 34 through the constant pressure device 33 configured to be adjusted to a pressure suitable for the cooling demand, and stays there for a while. The cooling energy is supplied by the individual air conditioners 36 in the room via the filter 18 ', the water separator 19', and the air cooling meter 35 immediately before supplying the low temperature refrigerant medium 34 to the final demand source. The low temperature refrigerant that remains due to the change in the cooling load is recovered and sent to another neighboring refrigerant circulation tank (34 ', 34' ') to provide an efficient cooling system for the regional group using the cooling energy. Configure.

도 5는 본 발명의 제2 실시예를 나타낸 액화천연가스 냉열이용 지역집단 냉방시스템의 계통도이다. 도 5의 특징은 가스냉방기(25)의 설치위치를 제외하고 1번 냉열교환기(17), 열매체저장탱크(21), 2번 냉열교환기(22), 천연가스열교환기(24), 대형냉매체저장탱크(28), LNG 저장탱크(30), 압송장치(31), 중형냉매체저장탱크(32), 정압장치(33) 이전의 냉열에너지 시스템과 냉매체순환탱크(34,34',34'') 이후의 공급시스템은 도 4와 같지만, 저온냉매체를 추가로 확보하기 위해 가스냉방기(25'')를 냉매체순환탱크(34) 이전에 설치한 연결시스템이 다르다. 5 is a system diagram of a regional group cooling system using liquefied natural gas cooling heat according to a second embodiment of the present invention. 5 is a cold heat exchanger 17, a heat medium storage tank 21, a second heat exchanger 22, a natural gas heat exchanger 24, a large refrigerant medium except for the installation position of the gas cooler 25 Cooling energy system and refrigerant body circulation tank (34, 34 ', 34') before storage tank (28), LNG storage tank (30), pressure feeding device (31), medium coolant storage tank (32), and static pressure device (33). The supply system after ') is the same as that of FIG. 4, but the connection system in which the gas cooler 25 ″ is installed before the refrigerant body circulation tank 34 in order to further secure a low temperature refrigerant medium is different.

도 5에서 저온냉매체를 별도로 생산하기 위해 가스냉방기(25'')를 냉방 수요처 인근에 설치한 냉매체순환탱크(34) 이전에 위치하고, 상기 가스냉방기(25'')에는 가스배관(29)을 통과하는 천연가스를 유입시켜 고온에너지를 생산하고, 상기 가스냉방기(25'')에 고온열매체를 공급하기 위해 필요한 필터(18), 수분리기(19), 유분리기(20)가 장착된 소형의 열매체저장탱크(21'')를 연결하고, 상기 가스냉방기(25'')에서 생산한 저온냉매체를 냉매체순환탱크(34)에 공급할 수 있도록 연결하고, 상기 냉매체순환탱크(34) 이후로 연결한 냉방에너지 공급시스템은 도 4와 동일하게 구성한 냉열이용 지역집단 냉방에너지 공급시스템 사례이다.In FIG. 5, the gas cooler 25 ″ is positioned before the refrigerant body circulation tank 34 in which the gas cooler 25 ″ is installed near the cooling demand destination in order to separately produce the low temperature coolant, and the gas cooler 25 ″ includes a gas pipe 29. The high-temperature energy is produced by introducing natural gas passing therethrough, and the filter 18, the water separator 19, and the oil separator 20, which are necessary for supplying the high temperature heat medium to the gas cooler 25 '', are equipped with a small size. The heat medium storage tank 21 ″ is connected to the low temperature refrigerant medium produced by the gas cooler 25 ″ to be supplied to the refrigerant body circulation tank 34, and then connected to the refrigerant body circulation tank 34. One cooling energy supply system is an example of a cooling system using a district heat cooling energy group configured in the same manner as in FIG. 4.

본 발명에 있어서, 액화천연가스 냉열이용 지역집단 냉방시스템을 구성하는 냉열교환기의 배열순서와 수량, 가스냉방기의 배열순서와 수량, 천연가스열교환기의 배열순서와 수량, 열매체저장탱크의 배열순서와 수량, 냉매체순환탱크의 배열순서와 수량, 열매체의 종류에 의해 다양하게 변경될 수 있다.In the present invention, the arrangement order and quantity of the liquefied natural gas cooling heat exchanger constituting the regional group cooling system, the arrangement order and quantity of the gas cooler, the sequence and quantity of the natural gas heat exchanger, the arrangement order of the heat medium storage tank and It can be changed in various ways depending on the quantity, the arrangement order and quantity of the refrigerant body circulation tank, and the type of heat medium.

이상에서 설명한 본 발명은 도시되고 설명된 그대로의 구성 및 작용으로 한정되는 것이 아니다. 즉, 본 발명은 기재된 특허청구 범위의 사상 및 범위 내에서 다양한 변경 및 수정이 가능하다.The present invention described above is not limited to the structure and operation as shown and described. In other words, the present invention is susceptible to various changes and modifications within the spirit and scope of the appended claims.

100 : 에어컨 10 : 압축기
11 : 파이프 12 : 응축기
13,13' : 모터 14,14' : 냉각팬
15 : 팽창밸브 16 : 증발기
17 : 1번 냉열교환기 18,18' : 필터
19,19' : 수분리기 20 : 유분리기
21,21',21'' : 열매체저장탱크 22 : 2번 냉열교환기
23 : 3번 냉열교환기 24 : 천연가스열교환기
25,25',25'' : 가스냉방기 26 : 배관
27 : 냉열배관 28 : 대형냉매체저장탱크
29 : 가스배관 30 : LNG 저장탱크
31 : 압송장치 32 : 중형냉매체저장탱크
33 : 정압장치 34,34',34'' : 냉매체순환탱크
35 : 냉방계량기 36 : 냉방기
CC : 저온냉매체 LNG : 액화천연가스
NG : 천연가스 RG : 가스냉매
RL : 액상냉매 TH : 고온열매체
TL : 저온열매체 WH : 고온냉각수
WL : 저온냉각수100: air conditioner 10: compressor
11: pipe 12: condenser
13,13 ': Motor 14,14': Cooling fan
15 expansion valve 16 evaporator
17: No. 1 cold heat exchanger 18,18 ': Filter
19,19 ': Water separator 20: Oil separator
21,21 ', 21'': Thermal medium storage tank 22: No. 2 heat exchanger
23: 3 cold heat exchanger 24: natural gas heat exchanger
25,25 ', 25'': Gas cooler 26: Piping
27: cold heat pipe 28: large refrigerant storage tank
29: gas piping 30: LNG storage tank
31: feeding device 32: medium coolant storage tank
33: static pressure device 34,34 ', 34'': refrigerant fluid circulation tank
35 air conditioner 36 air conditioner
C C : Low temperature refrigerant LNG: Liquefied natural gas
NG: Natural Gas R G Gas refrigerant
R L : Liquid refrigerant T H : High temperature heat medium
T L : Low temperature heat medium W H : High temperature coolant
W L : Low temperature coolant

Claims (5)

1번 냉열교환기(17)에 배관(26)을 통과하는 -162℃의 액화천연가스를 유입시켜 열매체저장탱크(21)에서 공급한 저온열매체와의 열교환 작용에 의해 생산된 저온냉매체는 냉열배관(27)을 타고 대형냉매체저장탱크(28), 천연가스는 가스배관(29), 남아있는 액화천연가스는 LNG 저장탱크(30)로 각각 이송될 수 있도록 연결하고;
상기 LNG 저장탱크(30)에 연결된 2번 냉열교환기(22)에 유입된 액화천연가스와 열매체저장탱크(21)에서 공급한 저온열매체 사이의 열교환 작용에 의해 생산된 저온냉매체는 냉열배관(27)을 타고 대형냉매체저장탱크(28), 천연가스는 가스배관(29), 남아있는 액화천연가스는 3번 냉열교환기(23)로 각각 이송될 수 있도록 연결하고;
상기 2번 냉열교환기(22)에 연결된 3번 냉열교환기(23)에 유입된 액화천연가스와 열매체저장탱크(21)에서 공급한 저온열매체 사이의 열교환 작용에 의해 생산된 저온냉매체는 냉열배관(27)을 타고 대형냉매체저장탱크(28), 천연가스는 가스배관(29), 남아있는 액화천연가스는 천연가스열교환기(24)로 각각 이송될 수 있도록 연결하고;
상기 3번 열교환기(23)에 연결된 천연가스열교환기(24)에 유입된 액화천연가스와 열매체저장탱크(21)에서 공급한 저온열매체 및 바닷물과 같은 고온냉각수 사이의 열교환 작용에 의해 생산된 저온냉매체는 냉열배관(27)을 타고 대형냉매체저장탱크(28), 천연가스는 가스배관(29), 저온냉각수는 상기 열매체저장탱크(21)와 상기 대형냉매체저장탱크(28)의 저온냉각수로 각각 이송될 수 있도록 연결하고;
상기 1번 냉열교환기(17), 2번 냉열교환기(22), 3번 냉열교환기(23), 천연가스열교환기(24), 가스냉방기(25)에 저온열매체를 공급하기 위해 필터(18), 수분리기(19), 유분리기(20)를 갖춘 열매체저장탱크(21)와, 상기 천연가스열교환기(24)로부터 저온냉각수를 유입시켜 열교환 작용을 하도록 연결하고;
상기 가스냉방기(25)를 가스배관(29) 선상에 연결하여 유입된 천연가스를 태워서 고온에너지를 공급함으로써 열매체저장탱크(21)에서 공급한 저온열매체를 저온냉매체로 바꾸어 냉열배관(27)을 타고 대형냉매체저장탱크(28)로 이송하여 저온냉매체를 추가적으로 확보할 수 있도록 연결하고;
상기 대형냉매체저장탱크(28)에 저장된 저온냉매체의 저온성을 유지하기 위해 천연가스열교환기(24)에서 생산한 저온냉각수를 대형냉매체저장탱크(28)의 원통부에 유입시켜 열교환 작용을 한 후에 냉열배관(27)을 타고 압송장치(31)로 이송되도록 연결한 액화천연가스 냉열이용 지역집단 냉방시스템. The low-temperature refrigerant produced by heat exchange with the low-temperature heat medium supplied from the heat medium storage tank 21 by introducing liquefied natural gas at -162 ° C passing through the pipe 26 to the first cold heat exchanger 17 is a cold heat pipe. A large refrigerant storage tank 28, natural gas is connected to the gas pipe 29, the remaining liquefied natural gas to the LNG storage tank 30, respectively;
The low temperature coolant produced by the heat exchange action between the liquefied natural gas introduced into the second cold heat exchanger 22 connected to the LNG storage tank 30 and the low temperature heat medium supplied from the heat medium storage tank 21 is a cold heat pipe (27). A large refrigerant storage tank 28, natural gas is connected to the gas pipe 29, the remaining liquefied natural gas can be transferred to the third cold heat exchanger (23);
The low temperature coolant produced by the heat exchange action between the liquefied natural gas introduced into the number 3 cold heat exchanger 23 connected to the second cold heat exchanger 22 and the low temperature heat medium supplied from the heat medium storage tank 21 is a cold heat pipe ( 27, the large refrigerant storage tank 28, the natural gas is connected to the gas pipe 29, the remaining liquefied natural gas can be transferred to the natural gas heat exchanger 24, respectively;
Low temperature produced by the heat exchange action between the liquefied natural gas introduced into the natural gas heat exchanger 24 connected to the third heat exchanger 23 and the low temperature heat medium supplied from the heat medium storage tank 21 and high temperature coolant such as sea water. The refrigerant flows through the cold heat pipe 27, the large refrigerant storage tank 28, the natural gas is the gas piping 29, the low temperature coolant is the low temperature of the heat medium storage tank 21 and the large refrigerant storage tank 28 Connecting to be respectively transported to the cooling water;
The filter 18 for supplying the low temperature heat medium to the cold heat exchanger 17, the cold heat exchanger 22, the cold heat exchanger 23, the natural gas heat exchanger 24, and the gas cooler 25, A heat medium storage tank (21) having a water separator (19) and an oil separator (20) and a low temperature cooling water from the natural gas heat exchanger (24) to be connected to perform a heat exchange operation;
By connecting the gas cooler 25 on the line of the gas pipe 29 to burn the natural gas introduced to supply high temperature energy, the low temperature heat medium supplied from the heat medium storage tank 21 is converted into a low temperature cool medium to ride the cold heat pipe 27. Transfer to a large refrigerant storage tank 28 so as to secure a low temperature refrigerant additionally;
In order to maintain the low temperature of the low temperature refrigerant medium stored in the large refrigerant storage tank 28, the low temperature coolant produced by the natural gas heat exchanger 24 flows into the cylindrical portion of the large refrigerant storage tank 28 to exchange heat. After the cold heat pipe (27) is connected to be transported to the pressure feeding device (31) LNG natural heat using the district group cooling system. 제1항에 있어서,
상기 압송장치(31)에 연결된 냉열배관(27)을 타고 압송된 저온냉매체를 중형냉매체저장탱크(32)에 일시적으로 저장하고, 상기 중형냉매체저장탱크(32)의 출구에 연결된 정압장치(33)에 의해 압력을 일정하게 조정한 후 수요변동에 따라 순환·분산저장이 가능한 다수개의 소규모 냉매체순환탱크(34,34',34'')를 소비처에 설치하고, 상기 냉매체순환탱크(34,34',34'')에서 송출된 저온냉매체에 혼입된 이물질을 걸러내기 위한 필터(18')와 수분제거를 위한 수분리기(19'), 그리고 저온냉매체의 사용량 검침을 위한 냉방계량기(35)와 공급개폐를 위한 냉방기(36)를 일렬로 연결하여 냉방에너지를 지역집단으로 공급할 수 있는 구조의 액화천연가스 냉열이용 지역집단 냉방시스템.The method of claim 1,
The constant pressure device connected to the outlet of the medium-medium medium storage tank 32 and temporarily stored in the medium-medium medium storage tank 32 and temporarily stored in the medium-medium medium storage tank 32, the low-temperature refrigerant conveyed by the cold heat pipe (27) connected to the pressure feeding device (31) After the pressure is constantly adjusted by (33), a plurality of small refrigerant flow circulation tanks 34, 34 ', 34''capable of circulating and distributing storage according to demand fluctuation are installed at the consumer, and the refrigerant flow circulation tank 34 (34 ', 34''), a filter (18') for filtering foreign matters mixed in the low temperature coolant, the water separator (19 ') for removing water, and a cooling meter for meter usage of the low temperature coolant. Local group cooling system using liquefied natural gas cold heat of the structure that can supply cooling energy to the local group by connecting the air conditioner (35) and the air conditioner (36) for supply opening and closing in a row. 제1항에 있어서,
상기 가스냉방기(25)의 설치위치를 수요처 인근의 중형냉매체저장탱크(32) 이전으로 이동하고, 가스냉방기(25')에 고온열매체를 공급하기 위한 필터(18), 수분리기(19), 유분리기(20)를 갖춘 소형의 열매체저장탱크(21')를 연결하여 생산한 저온냉매체를 중형냉매체저장탱크(32)에 공급할 수 있도록 변형한 구조의 액화천연가스 냉열이용 지역집단 냉방시스템.The method of claim 1,
A filter 18, a water separator 19, for moving the installation location of the gas cooler 25 to the medium coolant storage tank 32 near the demand, and supplying the high temperature heat medium to the gas cooler 25 ', Local group cooling system using liquefied natural gas cold heat of modified structure to supply low temperature refrigerant produced by connecting small thermal medium storage tank 21 'with oil separator 20 to medium medium storage tank 32 . 제1항에 있어서,
상기 LNG 저장탱크(30)에 연결된 천연가스열교환기(24)에 -162℃의 액화천연가스와 바닷물과 같은 고온냉각수를 공급하고, 이들 사이의 열교환 작용에 의해 생산된 천연가스는 가스배관(29), 저온냉각수는 2번 냉열교환기(22)로 각각 이송될 수 있도록 연결하고;
상기 천연가스열교환기(24)에 연결된 2번 냉열교환기(22)에 유입한 저온냉각수와 열매체저장탱크(21)에서 공급한 저온열매체 사이의 열교환 작용에 의해 생산된 저온냉매체는 냉열배관(27)을 타고 대형냉매체저장탱크(28), 저온냉각수는 열매체저장탱크(21)로 각각 이송될 수 있도록 연결하고;
상기 대형냉매체저장탱크(28)에 저장된 저온냉매체의 저온성을 유지하기 위해 상기 배관(26)을 흐르는 -162℃의 액체천연가스를 대형냉매체저장탱크(28)의 원통부에 유입시켜 열교환 작용을 하도록 하고, 이 과정에서 생산된 천연가스는 가스배관(29), 남아있는 액화천연가스는 LNG 저장탱크(30)로 각각 이송될 수 있도록 변형된 액화천연가스 냉열이용 지역집단 냉방시스템.The method of claim 1,
The natural gas heat exchanger 24 connected to the LNG storage tank 30 is supplied with liquefied natural gas at -162 ° C and high temperature coolant such as seawater, and the natural gas produced by heat exchange between them is a gas pipe (29). ), The low temperature coolant is connected to the second cold heat exchanger 22 so as to be respectively transferred;
The low temperature coolant produced by the heat exchange action between the low temperature coolant introduced into the second heat exchanger 22 connected to the natural gas heat exchanger 24 and the low temperature heat medium supplied from the heat medium storage tank 21 is a cold heat pipe (27). Take a) and connect the large refrigerant storage tank 28, the low-temperature cooling water to be transferred to the heat medium storage tank 21, respectively;
In order to maintain the low temperature of the low-temperature refrigerant stored in the large refrigerant storage tank 28, -162 ° C liquid natural gas flowing through the pipe 26 is introduced into the cylindrical portion of the large refrigerant storage tank 28 The heat exchange action, and the natural gas produced in this process is a gas piping (29), the remaining liquefied natural gas can be transferred to the LNG storage tank (30), respectively. 제4항에 있어서,
상기 가스냉방기(25)의 설치위치를 수요처 인근의 냉매체순환탱크(34) 이전으로 이동하고, 가스냉방기(25'')에 고온열매체를 공급하기 위한 필터(18), 수분리기(19), 유분리기(20)를 갖춘 소형의 열매체저장탱크(21'')를 연결하여 생산한 저온냉매체를 냉매체순환탱크(34)로 보내져 저장할 수 있도록 변형된 액화천연가스 냉열이용 지역집단 냉방시스템.5. The method of claim 4,
The filter 18, the water separator 19, and the oil for moving the installation location of the gas cooler 25 to the coolant medium circulation tank 34 near the demand destination and supplying the high temperature heat medium to the gas cooler 25 ''. Local group cooling system using a liquefied natural gas cold heat modified to be sent to the refrigerant medium circulation tank (34) to store the low-temperature refrigerant produced by connecting a small heat medium storage tank (21 '') with a separator (20).
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KR100929097B1 (en) 2008-03-17 2009-11-30 현대중공업 주식회사 LNG production equipment with a heat exchanger incorporating a preheating device for supplying liquefied petroleum gas and a precooling device for liquefied natural gas production
KR100929095B1 (en) 2008-04-07 2009-11-30 현대중공업 주식회사 LNG system that can supply fuel gas and liquefied natural gas at the same time

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Publication number Priority date Publication date Assignee Title
KR100929097B1 (en) 2008-03-17 2009-11-30 현대중공업 주식회사 LNG production equipment with a heat exchanger incorporating a preheating device for supplying liquefied petroleum gas and a precooling device for liquefied natural gas production
KR100929095B1 (en) 2008-04-07 2009-11-30 현대중공업 주식회사 LNG system that can supply fuel gas and liquefied natural gas at the same time

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