查询词典 orifice

Natural gas ; Gas pipeline ; Orifice meter ; Measurement error ; Calculation ; Analysis

天然气；输气管道；孔板流量计；测量误差；计算；分析

It is proved that the model is in good agreement with the literature data. Standard error is less than 0.01(σ.01). Using this model, process simulation of the experiment of the test of orifice - plate flow - meter is carried out on computer.

在孔板流量计或文丘里管的计算过程中，习惯上常常使用查表的方法以确定孔板流量计的流量系数，但是，在化工过程模拟计算过程中，这种方法却难以奏效。

Gas flow ; Orifice meter ; Probe ; Condition circuit ; Propulsion system

气体流量；孔板流量计；探头；调理电路；推进系统

Bored pipe shall not be considered to be usable for the fabrication of orifice meter tubes until the design engineer has reviewed the data authorized its utilization by means of his signature on the data sheet.

已经钻孔的管不能作为孔板量计管的制造材料再次使用，除非设计工程师已经审查数据，并且在数据单上签名批准，方可使用。

Details: First, an overview of orifice flow meter is also known as differential pressure flowmeter is determined by a test piece and the second device (differential pressure transmitter and flow indicator), is widely used in gas , steam and liquid flow measurement.

详细介绍：一、概述孔板流量计又称为差压式流量计，是由一次检测件和二次装置(差压变送器和流量显示仪)组成，广泛应用于气体、蒸汽和液体的流量测量。

Because the flow meter orifice pressure by correspondence before the impact of heavy flow, if required flow accuracy of 10%, the valve must be over before the straight section 10d, and this works in practice extremely difficult to protect.

由于孔板流量计的流量压差对应关系受到前流态影响极重，如果要求流量精度达到10%，则必须阀前有10d以上的直管段，而这一点工程实际中极难保障。

This probe suits the measurement of micro gas flow,which conforms with the theory of the differential\|pressure orifice flow meter,and it is designed light and handy and used conveniently.

该探头适用微流量气体流量的测量，采用了差压式孔板流量计的原理，设计轻巧，使用方便，能够进行远距离无失真传输，方便了现场测试。

Materials for orifice plates, meter/transmitter internal process wetted parts, and insertion type elements shall be in accordance with piping specifications except that material shall be minimum Type 316 stainless steel.

孔板、仪表/变送器的内部浸湿部件和内置型元件的材料，除了材料的最低类型是316不锈钢的，应遵照配管的规范。

The system of CVS is calibrated by Laminar Flow Elements, the whole system calibrated by Critical Flow Orifice meter.

CVS系统流量标定采用层状流量计；整套检测系统测量精度标定采用临界流喷咀流量计。

Orifice flow meter and nozzle flow meter were added in the retrofit test platform to measure the differential pressure.

改造后增加了孔板流量计及喷嘴流量计实验内容，通过孔板、喷嘴测量压差，求出流量系数。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。