管道

The invention discloses a measuring method for firing conclusion and gas flow rate in the process of liquid, gas fuel firing, which comprises the following steps: positing three points on fuel transmission pipe, air pipe and gas pipe, setting regular measuring device or sampling device, measuring the flue's element and flow rate of point 1, air element of point 2, and gas element of point 3, inputting the data of three points into computing unit, computing air flow rate Mair, gas flow rate Mgas and firing conclusionηB by the element of air, flue, and gas and flue flow rate Mburn.

本发明公开了一种液体、气体燃料燃烧过程中燃烧完全度和燃气流量的确定方法，步骤为：在燃料输送管道、空气管道和烟气管道上分别设置三测点，并安装常规的测量装置或取样装置；分别测量测点1的燃料成分和流量；测点2的空气成分；测点3的燃气成分；将三测点的测量数据输入计算单元；根据空气、燃料和燃气的成分以及燃料流量M burn ，计算空气流量M air 、燃气流量M gas 和燃烧完全度η B 。

In this paper, a fluid dynamics model of hydaulicline including frequency-dependent friction is developed andits approaximate expression is got. Two mathematical treat-ments for the approximation are considered.

l引言 由于在液压系统动力学中，液压管道的动力响应有重要影响，所以建立管道的动态模型，特别是准确反映液压管道内各变量间传递关系的分布参数模型，就成为一个重要问题。

In order to find a method for determing transportation batch and tank capacity of short-small product pipeline,the Anqing-Hefei product pipeline is taken as an example,which has such characteristics as a short route,a small diameter,no offtake stations,no new tank and little contaminated product loss.

为了研究短小成品油管道输送批次和罐容的确定方法，以安庆-合肥成品油管道为例，根据该工程线路短、管径小、不考虑分输、不需要新建储罐、混油量少等特点，经过综合比较确定管道输送的最大批次数，再综合分析首末站的实际情况，以充分利用首末站现有储罐、方便运行管理、减少混油损失为原则，来确定合适的批次和首末站的罐容。

Reducing the quality fluctuation of PVC resin produced by calcium carbide method among each production batch ;2. In order to find a method for determing transportation batch and tank capacity of short-small product pipeline,the Anqing-Hefei product pipeline is taken as an example,which has such characteristics as a short route,a small diameter,no offtake stations,no new tank and little contaminated product loss.

为了研究短小成品油管道输送批次和罐容的确定方法，以安庆-合肥成品油管道为例，根据该工程线路短、管径小、不考虑分输、不需要新建储罐、混油量少等特点，经过综合比较确定管道输送的最大批次数，再综合分析首末站的实际情况，以充分利用首末站现有储罐、方便运行管理、减少混油损失为原则，来确定合适的批次和首末站的罐容。

The design work of product oil pipeline is greatly different from that of crude oil pipeline, which is mostly existed in pipeline's batched transportation, transportation circle, optimization of oilcan's cubage and oil mixture's management, etc.Within a product oil batched transportation pipeline, the less the transportation circles are and the more the transportation sum of each kind of oil, the less the mixed oil segment and oil mixture loss will form.

成品油管道设计与原油管道有很大的区别，主要就体现在管道的顺序输送和批次、罐容的优化，混油的处理等方面。

This paper proposes one set of leakage point location system based on the correlation analysis, through the virtual instrument technology. We choose the water sound signals as the studying object when the pipelines leak out, carry out the orientation task via the Fast Fourier Transform.

本文采用虚拟仪器技术，设计了一套基于相关分析算法的管道漏点定位系统，即选择管道泄漏时产生的、在管道中传播的声发射信号为研究对象，通过基于快速傅立叶变换(FFT，Fast Fourier Transformation)算法的相关分析来实现漏点的检测与定位。

In this paper, the researches on sediment transport in sewer are reviewed. Combined with the modeling study on sediment deposition in outfall diffuser, the typical sewer sediment transport functions are analyzed, and functions used in sewer designing are recommended.

对排水管道泥沙运动的研究进行了较为全面的综述，结合相关的排放口扩散器泥沙淤积规律模型试验研究成果，对典型的排水管道泥沙运动方程进行一定分析，提出排水管道设计推荐公式。

Xuzhou Pierte Pipe System, is an earlier production of PP-R pipeline series of large private enterprises, since its creation has been committed to green fields of engineering research and development, the company adhering to the "pipeline Peart, green passage" of the concept 2001, namely the introduction of German equipment and technology imported raw materials production and sales professional in line with international standards DIN8077, DIN8078 for PP-R pipe, fittings, installation of equipment such as a full set of pipeline products, the company has main products: PP-R pipe fittings, GF PIPING, nano-antibacterial PP-R pipe pipe fittings, PE-RT heating pipe, PVC-U drainage pipes and other series.

苏州皮尔特管业，是国内较早生产PP-R管道系列产品的大型民营企业，自创建以来一直致力于绿色环保工程领域的研究与发展，公司秉承"皮尔特管道，绿色通道"这一理念， 2001年即引进德国进口原料设备及工艺专业生产和销售符合国际标准DIN8077，DIN8078的PP-R管材、管件、安装设备等全套管道产品，公司主要产品有：PP-R管材管件、玻纤增强管材管件、纳米抗菌PP-R管材管件、PE-RT采暖管、PVC-U排水管等系列。

Xuzhou Pierte Pipe System, is an earlier production of PP-R pipeline series of large private enterprises, since its creation has been committed to green fields of engineering research and development, the company adhering to the "pipeline Peart, green passage" of the concept 2001, namely the introduction of German equipment and technology imported raw materials production and sales professional in line with international standards DIN8077, DIN8078 for PP-R pipe, fittings, installation of equipment such as a full set of pipeline products, the company has main products: PP-R pipe fittings, GF PIPING, nano-antibacterial PP-R pipe pipe fittings, PE -RT heating pipe, PVC-U drainage pipes and other series.

不用担心记不住初始密码，该信息已经发往您的邮箱，请注意查收。不用担心记不住初始密码，该信息已经发往您的邮箱，请注意查收。苏州皮尔特管业，是国内较早生产PP-R 管道系列产品的大型民营企业，自创建以来一直致力于绿色环保工程领域的研究与发展，公司秉承"皮尔特管道，绿色通道"这一理念， 2001年即引进德国进口原料设备及工艺专业生产和销售符合国际标准DIN8077，DIN8078的PP-R管材、管件、安装设备等全套管道产品，公司主要产品有：PP-R管材管件、玻纤增强管材管件、纳米抗菌PP-R管材管件、 PE -RT采暖管、PVC-U排水管等系列。

Xuzhou Pierte Pipe System, is an earlier production of PP-R pipeline series of large private enterprises, since its creation has been committed to green fields of engineering research and development, the company adhering to the 'pipeline Peart, green passage' of the concept 2001, namely the introduction of German equipment and technology imported raw materials production and sales professional in line with international standards DIN8077, DIN8078 for PP-R pipe, fittings, installation of equipment such as a full set of pipeline products, the company has main products: PP-R pipe fittings, GF PIPING, nano-antibacterial PP-R pipe pipe fittings, PE-RT heating pipe, PVC-U drainage pipes and other series.

经营模式：经销，代理，特许，合作发展模式：经销，区域代理，区域开发，二级特许苏州皮尔特管业，是国内较早生产PP-R管道系列产品的大型民营企业，自创建以来一直致力于绿色环保工程领域的研究与发展，公司秉承"皮尔特管道，绿色通道"这一理念， 2001年即引进德国进口原料设备及工艺专业生产和销售符合国际标准DIN8077，DIN8078的PP-R管材、管件、安装设备等全套管道产品，公司主要产品有：PP-R管材管件、玻纤增强管材管件、纳米抗菌PP-R管材管件、PE-RT采暖管、PVC-U排水管等系列。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。