1) airtight drywall approach ADA
气密干砌
2) dry gas seal
干气密封
1.
Finite Element Simulation of the Gas Flow Field in the Dry Gas Seal Spiral Grooves;
干气密封螺旋槽内气体流场的有限元模拟
2.
Application of the Tandem Type Dry Gas Seals in Light Hydrocarbon Pumps;
串联式干气密封在轻烃泵上的应用
3.
Applications of Dry Gas Seal in Propane Pumps;
干气密封在丙烷泵上的应用
3) gas seals
干气密封
1.
Dynamic pressure calculation of steady-state micro-scale flow field in spiral grooved dry gas seals;
螺旋槽干气密封稳态微尺度流动场的动压计算
2.
A stability analysis for lubricating gaseous film of spiral grooved gas seals subjected to angular eddy motion;
螺旋槽干气密封润滑气膜角向涡动的稳定性分析
4) air-dried density
气干密度
1.
The objective of this study is to investigate the feasibility of using near infrared spectroscopy(NIR) combined with chemometrics analysis to rapidly predict the air-dried density of Phyllostachys pubescens Mazei ex H.
该文对近红外光谱技术结合化学计量学分析方法快速预测毛竹材气干密度的可行性进行了研究,重点探讨不同采谱方式对所建模型预测精度的影响。
2.
In order to investigate the effect of different parts(North or South) and radial directions(Near pith or near bark) on the mechanical properties and dir-dried density of plantation wood,the mechanical properties and air-dried density of plantation-grown Castanopsis hystrix and Betula alnoides at different parts and radial directions were studied.
为了研究树木南北向与径向位置的变化对人工林木材力学性质与气干密度的影响,该文通过对红锥、西南桦人工林木材南北向、近髓心和近树皮2个不同径向位置的力学性质以及气干密度进行测定,分析了南北向和不同径向位置2个因素对两种木材力学性质和气干密度的影响,以及木材密度与抗弯强度、抗弯弹性模量、顺纹抗压强度的相关性。
3.
Wood anatomy of 12-13 year old Chinese fir plantation in different growth environments (south hillside, mountain valley, ridge, mountain top) was studied by measuring annual ring width, late wood percentage, tracheid length, tracheid width, thickness of cell wall, ratio of length to width, ratio of cell wall to cavity, microfibrillar angle, proportion of wood tissues, air-dried density.
本文采用宏观和微观方法，以木材的年轮宽度及晚材率，管胞形态因子，微纤丝角，组织比量，气干密度为指标，对不同生长环境(南坡，山谷，山脊，山顶)的人工林杉木(12——13年生)的木材解剖特征进行研究，结果表明：(1)不同生长环境全树间的年轮宽度及晚材率均达到了差异显著水平，其大小顺序为，年轮宽度：山谷(7。
5) dry gas sealing
干气密封
1.
It is shown by analysis that the main reasons for the damage of dry gas sealing are the higher vibration of radial tile at both sides and higher temperature of thrust tile.
介绍二氧化碳压缩机高压缸的结构及运行中存在的问题,分析认为干气密封损坏主要原因是两侧径向瓦振值较高、止推瓦温度较高,提出改进措施。
2.
The structural characters and control principle of the floating ring sealing and the double face dry gas sealing are introduced.
对比了浮环密封与双端面干气密封的结构原理和控制原理 ,介绍了双端面干气密封的改造情况、使用效果、存在问题以及操作费用
3.
Presented the structure and principle of floating ring sealing and dry gas sealing for compressor,compared the advantages and disadvantages between them,put forward revamping scheme with dry gas sealing.
介绍压缩机浮环密封与干气密封的结构及工作原理,比较其优缺点,提出干气密封改造方案,改造后达到了预期的目的,指出干气密封在维护操作中应注意的事项。
6) gas seal
干气密封
1.
Numerical simulation and analysis of spiral groove gas seal based on Fluent;
基于Fluent的螺旋槽干气密封数值模拟与分析
2.
According to the process characteristcs of the new ammonia compressor in the chemical fertilizer s coal for oil project of Anqing Petrochemical Company,the different type of gas seal is selected in LP and HP cylinder of the ammonia compressor.
根据中石化安庆分公司化肥油改煤工程新建氨气压缩机的工艺特点,其低压缸和高压缸分别选用了不同的干气密封型式。
3.
In this article, the principle, structure, advantages and disadvantages of floating ring seal and double faces gas seal used in coking gas compressor were indicated in detail.
详细阐述富气压缩机浮环密封和双端面干气密封的原理结构及优缺点,并对浮环密封存在的问题作了分析,最后在选择密封型式上提出建议。
补充资料：高气密性橡胶
分子式：
CAS号：
性质： 即透气性很小的橡胶，用于制造轮胎内胎、气压胶管、气密封及真空密封橡胶。含有极性基团的橡胶，分子间吸引力大空隙小；分子链含有大侧基时，空间位移阻力较大；结晶的橡胶，分子链排列紧密有序。故以上三种分子结构的橡胶都是不易透气的。氯丁橡胶、丁腈橡胶、丁基橡胶、氟橡胶及新开发的环氧化天然橡胶都属耐透气性橡胶，而天然橡胶、丁苯橡胶、硅橡胶则属透气性较大橡胶。为提高胶料气密性，可多加云母粉、滑石粉填充剂；适当增加硫黄用量，提高硫化交联密度；增加胶料的致密度，并尽量少加增塑剂。用于真空系统的橡胶制品宜选用氟橡胶或丁基橡胶。
CAS号：
性质： 即透气性很小的橡胶，用于制造轮胎内胎、气压胶管、气密封及真空密封橡胶。含有极性基团的橡胶，分子间吸引力大空隙小；分子链含有大侧基时，空间位移阻力较大；结晶的橡胶，分子链排列紧密有序。故以上三种分子结构的橡胶都是不易透气的。氯丁橡胶、丁腈橡胶、丁基橡胶、氟橡胶及新开发的环氧化天然橡胶都属耐透气性橡胶，而天然橡胶、丁苯橡胶、硅橡胶则属透气性较大橡胶。为提高胶料气密性，可多加云母粉、滑石粉填充剂；适当增加硫黄用量，提高硫化交联密度；增加胶料的致密度，并尽量少加增塑剂。用于真空系统的橡胶制品宜选用氟橡胶或丁基橡胶。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条