System for hydrogen production and stable temperature system at nursery

• Main Authors: KIM HEETAE, LEE JAEMYUNG, KIM JEONGHYEON, BAE JINHO, KIM SEULKEE
• Format: Patent
• Language: English; Korean
• Published: 01.07.2021
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; BLASTING; CARE OF BIRDS, FISHES, INSECTS; CHEMISTRY; COMBINED HEATING AND REFRIGERATION SYSTEMS; ELECTRICITY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FISHING; FIXED-CAPACITY GAS-HOLDERS; FORESTRY; HEAT PUMP SYSTEMS; HEATING; HUMAN NECESSITIES; HUNTING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METALLURGY; MIXTURES BY PRESSURE AND COLD TREATMENT; NEW BREEDS OF ANIMALS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; REFRIGERATION OR COOLING; STORING OF DISTRIBUTING GASES OR LIQUIDS; TRAPPING; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

The present invention relates to a system for integrally managing hydrogen production and water temperature of aquafarms, which electrolyzes seawater to produce hydrogen and sodium hypochlorite, supplies a part of the produced hydrogen to a hydrogen fuel cell to produce electricity, and supplies the remaining part of the produced hydrogen to an aquafarm to cool water, thereby maintaining a water temperature at a constant temperature, and an operation method thereof. According to the present invention, the system comprises: a seawater electrolysis unit electrolyzing seawater to produce hydrogen gas and sodium hypochlorite (NaOCl); a hydrogen fuel cell receiving a part of the hydrogen gas produced in the seawater electrolysis unit and oxygen gas generated in the seawater electrolysis unit or oxygen gas supplied from the outside to produce electric energy; a storage battery storing the electric energy produced by the hydrogen fuel cell; a hydrogen liquefaction unit liquefying hydrogen through heat exchange between the remaining part of the hydrogen gas produced in the seawater electrolysis unit and liquid nitrogen supplied from an external liquid nitrogen source to produce liquefied hydrogen; an aquafarm water temperature management unit receiving the liquefied hydrogen produced in the hydrogen liquefaction unit to cool cooling water for controlling the water temperature of the aquafarm through heat exchange between the liquefied hydrogen and the cooling water; and a hydrogen storage unit including a hydrogen storage alloy absorbing and storing the hydrogen gas transferred through the aquafarm water temperature management unit. 본 발명은 해수를 전기분해하여 수소 및 차아염소산 나트륨을 생산하고, 생산된 수소의 일부를 수소연료전지로 공급하여 전기를 생산하며, 생산된 수소의 나머지 일부를 양식장으로 공급하여 물을 냉각시켜 수온을 일정한 온도로 관리할 수 있는 수소 생산 및 양식장 수온 관리 통합 시스템 및 방법에 관한 것으로, 본 발명에 따른 수소 생산 및 양식장 수온 관리 통합 시스템은 해수를 전기분해하여 수소 기체와 차아염소산 나트륨(NaOCl)을 생산하는 해수전기분해부; 상기 해수전기분해부에서 생산된 수소 기체의 일부와, 상기 해수전기분해부에서 생성된 산소 기체 또는 외부에서 공급되는 산소 기체를 공급받아 전기에너지를 생산하는 수소 연료전지; 상기 수소 연료전지에서 생산된 전기에너지를 저장하는 축전지; 상기 해수전기분해부에서 생산된 수소 기체의 나머지 일부와, 외부의 액화질소공급원에서 공급되는 액화질소의 열교환을 통해 수소를 액화시켜 액화수소를 생성하는 수소액화부; 상기 수소액화부에서 생성된 액화수소를 공급받아, 상기 액화수소와 양식장의 수온을 조절하기 위한 냉각수와의 열교환을 통해 냉각수를 냉각시키는 양식장수온관리부; 상기 양식장수온관리부를 통과하여 이송된 수소 기체를 흡수하여 저장하는 수소저장합금을 포함하는 수소저장부;를 포함한다.