• Title/Summary/Keyword: corrosion-prevented tank

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Prevention of Insulation Damage Layer and Shell Corrosion in Thermal Storage Tanks for District Heating (지역난방용 축열조의 단열재 손상과 외각부식 개선방안)

  • Bang, Yong-Eoon;Yoo, Ho-seon
    • Plant Journal
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    • v.10 no.4
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    • pp.35-41
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    • 2014
  • The height and capacity of the thermal storage tank can be decided by the altitude and heat load of the heat supply area. Evaporation in heat pipe can be prevented by pressurizing it with the hydraulic head of the thermal storage tank. In addition, it absorbs the expanded volume from the temperature changes and supplies water to the pipelines in case of the shortage of water. One of the most important roles of the thermal storage tank is a stable heat supply facility. It can control the heat demand by accumulating the surplus heat and supplying in changing heat demand time. The purpose of this thesis is to be helpful for the operation and maintenance of the thermal storage tanks. The study has been carried out for 18 thermal storage tanks, which have been used polyurethane foam as insulation, among 27 tanks in district heating plants. The characteristics of the insulation materials, the reasons for the damages of the insulation and how impact the insulation damages to the corrosion of the thermal storage tank have been studied.

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Prevention of Soil Contamination from Underground Storage Facilities of Petroleum Product and Hazardous Chemical Compounds (유류 및 유해화학물질 저장시설에서의 토양오염 방지대책)

  • 배우근;홍종철;정진욱;김종호
    • Journal of Soil and Groundwater Environment
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    • v.7 no.4
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    • pp.40-47
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    • 2002
  • The practices of the construction and management of the petroleum and hazardous chemical compound storage facilities in Korea were investigated extensively, and the problems were identified. The advanced technologies in the U.S.A were comparatively studied. Considering the effectiveness of leak prevention and applicability, the following measures were suggested. To prevent corrosion of a tank, a clad tank, an interior lining tank, or a double-wall tank were thought to be the most cost effective. For piping. use of non-metalic materials was suggested. A catchment basin seemed to be effective for preventing spills. For monitoring of leaks, constructions of more than one of detection systems, such as an automatic leak detection device. a vapor detection system, a groundwater monitoring system, or a double-wall monitoring system, were recommended.