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1)  Positive Pressure System
正压系统
2)  micropositive pressure system
微正压系统
3)  Positive pressure operation system
正压操作系统
4)  positive pressure dust cleaning system
正压除尘系统
1.
It introduces the advantages of positive pressure dust cleaning system as the flue gas cleaning system of silicon metal furnace through comparing positive pressure dust collector with negative pressure dust collector.
通过对正压和负压除尘器的比较,介绍了正压除尘系统在硅铁电炉烟气净化系统中组合方案的选择,简述了系统中非标设备的性能及设计方法,并通过实例简要介绍了正压除尘系统在实际中的应用。
5)  positive pressure mechanical air supply system
正压送风系统
1.
The problems are discussed in positive pressure mechanical air supply system design, when the actual status is far different from what figures in the code based.
对正压送风系统的设计进行探讨。
2.
Positive pressure mechanical air supply system against the smoke is the essential method which offers enough fresh air to building of certain regions in mechanical way and therefore resulting in its pressure to be higher than the building of other regions.
本文主要是针对正压送风系统参数选取为目的的,通过FLUENT进行数值模拟,从理论上得出合理的设计参数,更好地将火灾烟气阻止于被加压区域之外。
6)  positive pressure ventilation system
正压通风系统
1.
The feasibility for appropriate parameter adjustment of wind temperature and wind pressure in the positive pressure ventilation system of synchronous electric machine affiliated to gas compressor is analyzed.
分析了对燃气压缩机所属同步电机正压通风系统中的风压、风温参数进行适当调整的可行性,在保证安全运行的前提下,提出对原设计参数裕量偏大的修改意见,以达到节能降耗和提高设备利用率的目的。
补充资料:固定斜管微压计
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性质:一种简单的微压计。主要由容器和固定斜管构成。当测量正压力时,需要测量压力的空间与容器接通,而当测量负压力时,则与斜管接通。当测量压力差时,将较高的压力与容器接通,而将较低的压力与斜管接通。所求的微压或压力差可由斜管的倾斜角度α、管内液面升高度h1和容器内液面下降度h2等算出,一般将h2忽略,由h1直接读出。如斜管倾斜角度可以改变,则称可动斜管微压计(movable-inclined-tube micromanometer)。

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