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介绍了使用地源热泵技术的优势,分析了天津港区的供热特点,并介绍了天津港应用地源热泵技术的实例,从中得出推广应用地源热泵技术的结论。 相似文献
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结合地源热泵空调系统在天津港工程项目中的应用实例,对地源热泵系统和普通中央空调系统进行了能耗比较,突出了地源热泵技术高效节能的优点。同时对地源热泵空调系统设计及工程施工中应注意的事项进行了总结分析。 相似文献
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天津港集团国际物流公司通过多方研究和试验,建立了天津港首个地源热泵远程监控智能平台,成为国际物流公司打造绿色低碳园区的重要标志之一。 相似文献
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随着"数据化天津港"的发展,利用现有的GIS平台建立天津港GIS数据库已经成为高效、科学地开展天津港港务工作的重要手段.主要介绍了天津港GIS数据库的建设内容、建库流程以及关键技术等问题,阐述了GIS技术发展的前景.以及在天津港的应用情况. 相似文献
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天津港是华北、西北地区的枢纽口岸,也是我国最大的人工港,进出港航道狭长,地形复杂。作者从船舶操纵角度出发,介绍了船舶进出天津港的注意事项及技术要领,对天津港船舶引航、进出港船舶安全具有实际意义。 相似文献
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地源热泵是一种利用浅层地能的空调系统,具有节能、环保、高效等优点,已逐步得到推广。简要介绍地源热泵的工作原理,针对港口的实际特点,提出一种适宜港口应用的空调系统设计方案,并分析采用地源热泵空调系统的经济性。 相似文献
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介绍了我国港口资源的整合现状,指出港口整合可以提升港口的形象和地位,也为区域经济和城市的发展注入强大的动力。最后指出在港口资源整合中要避免的几个问题。 相似文献
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广州集装箱码头的轮胎式场桥小车制动器使用10多年后,出现了许多问题,故进行了改造.分析了轮胎式集装箱龙门起重机小车制动器的主要故障现象,提出了改造方案,并加以实施. 相似文献
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本文对现有的选定球面轴承的三种工程方法进行了分析比较.引入了“合力系数”,并给出了合力方向上投影面积的精确解. 相似文献
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分析柴油机故障中常见的机体裂纹故障原因,认为由于设计缺陷和管理及操作不当,易造成船舶柴油机缸体上的裂纹多发生在气缸套凸肩处。如不及时处理这些裂纹和故障,就会造成缸套的裂纹直至出现缸套漏水等严重后果,针对NANTAIQUEEN轮柴油机对该类型故障的检修提出具体措施。 相似文献
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The hydrophysical and hydrochemical structure of the Sea of Azov, with developed bottom anoxia, was studied during the RV “Akvanavt” cruise from July 31 to August 03, 2001. The anoxic zone with a thickness from 0.5 to 4 m above the bottom was found in all deep regions of the Sea. Concentrations of hydrochemical parameters were similar to the pronounced anoxic conditions (about 90 mmol m− 3 of hydrogen sulfide, 17 mmol m− 3 of ammonia, 6 mmol m− 3 of phosphate, 7 mmol m− 3 of total manganese). The hydrophysical structure was characterized by the uniform distribution of temperature in the upper 6–7 m mixed layer (UML). Below this a thin (0.4–0.8 m) thermocline layer was observed, just above the anoxic waters. Formation of this phenomenon was connected with that summer weather conditions. Intensive rains led to increased influx of river waters in June. That resulted in large input of allochtonous organic matter (OM) and inorganic nutrients; the latter were consumed on the additional autochthonous organic matter production. In July the weather was characterized by a significant rise in the daily averaged air temperature and large oscillations of temperature during the day. In this period a wind of constant direction was absent, but wind bursts were observed. The completed analyses showed that the formation of such a structure could be connected with the following factors: (i) positive growth trends of the daily averaged temperature and the daily oscillations of temperature, (ii) presence of wind bursts. The joint action of these factors resulted in the formation of the UML. The amplitude of wind bursts determined the depth of UML, and the value of trend determined the value of the temperature change in the thermocline. An initial presence of bottom halocline (caused by the Black Sea water influx to the bottom of the Sea of Azov) prevented the heating of the bottom layer and therefore led to an increase of vertical gradient of temperature in the thermocline. The spatial distribution of the turbulent exchange coefficient confirmed the existence of a “stagnation” area located above the anoxia zone, which is also, apparently, the reason for its occurrence. 相似文献