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一、引言储粮用的钢筋水泥、砖砌结构的立筒仓都是多孔透气材料建筑起来的,钢板立筒仓因铆或焊接不实也易漏气,这些类型仓未经密封都不能用做熏蒸仓或者气调仓,这点在国内外是公认的,但是对于立筒仓气密性标准,在国际上气密性标准差异很大,说法不一。为更好促进立筒仓用于熏蒸仓或者气调仓的开展,以利储粮安全或储粮仓有虫就仓熏蒸,增加经济效益。就立簡仓气密性标准这一问题,提出浅薄的认识愿与研究储粮仓气密性能工作者共同商榷. 二、一些国家储粮熏蒸仓气密性标准 1、澳大利亚雷普先生提出;仓房内外的密封,应确保在充气结束后30分钟内,仓内压力衰减不得大于引入压力(例如为200帕)的1/2。在澳大利亚还有的学者提出其压
I. INTRODUCTION Reinforced concrete for grain storage and vertical silos of brick structure are all constructed of porous air-permeable materials. The steel silos can not leak due to riveting or welding inaccuracies. These types of silos can not be used without sealing Do fumigation warehouse or air-conditioned warehouse, which is recognized at home and abroad, but for the vertical tank of air tightness standards, the air tightness of the international standards vary widely, different opinions. In order to better promote the use of silos for fumigation warehouses or air-conditioned warehouses to facilitate the safety of grain storage or grain storage, fumigation of warehouses and increase of economic benefits. On the issue of establishing airtightness standards for simple warehouses, it is hoped that a shallow understanding is willing to be discussed with the workers who study the airtightness performance of the warehouses.Second, the standards of gas tightness of some grain storage and fumigation warehouses1, Reps of Australia proposed that warehouses The internal and external seals should ensure that the pressure in the tank is not attenuated by more than one-half of the introduced pressure (for example, 200 Pa) within 30 minutes of the end of inflation. Others in Australia put forward their pressure