管道工程管

The elastic stress diagram design method is behind the times and cant meet the command in practice.In the paper the author collected and analyzed a large amount of data about the SLRCP on several typical domestic model experiments and the projects in practice. By summarizing and analyzing the data, the author set up a typical computing model and analyzed the model by the software ANSYS, by reading the output data of the stress and the crack from the program, combined with the experimental results, the author summarized the destroy procession of the stock. The paper also discussed the influence of other main factors to the crack and the stress besides the internal water pressure, such as the concrete material, the dimension of stock and the way of laid-out steel bars.

本文通过对大量实际工程中的坝后背管资料的收集、归纳和分析，选取了具有代表性的计算模型；用有限元软件ANSYS计算了典型坝后背管结构在实际内水压力作用下的应力分布和裂缝发展情况；以国内几个有代表性的模型试验和有限元计算的成果为依据，分析了在内水压力作用下钢衬钢筋混凝土压力管道管壁裂缝的特点，并尝试总结出此种管道的裂缝出现的原因及其发展规律，同时确定了坝后背管结构极限状态的新的定义方式——以坝后背管的裂缝宽度来定义。

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。

The main research work and its results are: 1Empirical results are analysed for the relations of fault displacement and earthquake magnitude, and difference between permanent ground deformation and maxium dynamic relative displacement on the two sides of fault; 2An analytic method is proposed for resopnse of a buried pipeline due to earthquake fault movement; 3A new shell model with an equivalent boundary and relted finite element analysis method are proposed for estimating response of a buried pipeline under large fault movement; 4By the proposed method, damage performance of water supply steel pipelines with large diameter is simulated to the real cases in Kocaeli Earthquake and Ji-Ji Earthquake, and simulating results show the real failure mode of pipes is revealed; 5Effects of overlying soil and soft/hard interlayers are analyzed on ground rupture mode and degree due to earthquake fault, and some earthquake rupture phenomena in soil layers are theoretically described for the first time; 6Pipeline response characters are discussed for the case of considering effects of soil layers on ground rupture mode; 7Research results and proposed method are applied in seismic analysis of pipline acrossing fault in the Gas Tansportation Project from West to East in China.

主要工作和成果包括：1）分析了不同断层位错形式下地表破裂位错量与震级之间的经验关系，并基于集集地震近断层记录分析了断层两侧永久地面变形和地震动相对位移幅值之间的差别，为合理地考虑地震断层位错地面变形动态影响提供了依据；2）发展了断层位错地面大变形下管线反应分析模型并给出物理概念明确、简单实用的解析分析方法；3）建立了断层位错下埋地管线反应分析的等效边界壳模型有限元方法，方法中引入了以非线性弹簧形式模拟离断层较远处管段影响的等效边界，简化了计算模型并突出了近断层处管体反应；4）利用等效边界壳模型方法，对土耳其地震和集集地震中大口径埋地管线震害进行了模拟，结果表明所提方法可以更清地解释震害所表现的管体破坏特征；5）研究了覆盖土层和软硬夹层的存在对断层位错地面破裂形式和程度的影响，首次从理论上解释了某些地震地表破裂现象；6）探讨了考虑土层对断层位错地面变形影响的管体反应特征；7）本项目成果已在西气东输工程的管道跨断层抗震问题分析中得到了应用。

Space pipelines are widely used in engineering mechanical,chemical,civil,metallurgical and shipbuilding,etc.For smooth connection of two rectangular pipelines with skew axes in space,a suitable connector is required.

空间管道广泛应用于机械、化工、建筑、冶金和造船等工程，在管道设计中，常常要求一种矩形弯管光滑连接两轴线交错管道。

Design : we have set up a Fire Fighting Equipment Engineering Design Research Institute , and a Fire Fighting Engineering Technology Re - search Center cooperated with 6 domestic famous universities and science and technology research institutes and experiment base etc Jiangsu Fire Fighting Products and Fireproof Material Professional Committee 15 found in our company We have class A design quali cationfor reghting engineering issued by the State Construction Department and the Ministry of Public Security There are more than 20 senior engineers , 100 engineers and 100 experienced technicians in ourcompany We have a CAD -computer - aided design network system equipped with 160 computers A large space multi-functional relaboratory center , constructed with 40000000yun investment and with total area up to 5000 square meters , has passed the acceptance test and approved by the National Quality Technology Supervisory Bureau It has more than ten kinds of international standards engineering application laboratories , such as , gas systems , water systems , marine systems , foam systems ,redetection systems , large space fire extinguishments , transformer room , tunnel , container etc A remote control and computer inspection system 15 set up in the center We have fire protection design ability for any huge construction projects We have successfUlly finished one item ofstatehigh-tech product industrialization promotion program , three state level TOrch Programs , and six state major new products programs , among which , six kinds of products have gained stafe pafents We also formare research center with six national universities to undertake hightechnical reinvestigation

研发设计：南消股份拥有国家建设部颁发的甲级消防工程设计资质，公司与国内多所著名高校建立了科技战略合作伙伴关系，并建立产学研联盟。公司技术中心是江苏省唯一省级消防工程技术中心，设有气体灭火、水灭火、泡沫灭火、工程设计、火灾报警、工艺研究等数十个专项研究室和中试基地，江苏省消防产品和防火材料专业委员会也设在本公司。公司技术中心拥有200多名经验丰富的科技人员，配备了先进CAD计算机辅助设计网络系统，已经具备承担任何大型和特大型项目的消防工程设计，完成了多项国家高新技术产品产业化推进项目、国家级火炬计划项目和国家重点新产品项目，公司的众多产品拥有自主知识产权的专利。产品制造：南消股份加工设备先进，工艺手段完善，计量设备精确，检测设施齐全。拥有产品数控加工中心、玻璃球洒水喷头装配测试线、数控机床加工生产线、数控管道切割线、油漆喷涂自动线、火灾报警产品装配、调试、检测线，以及各类性能先进的检测线。公司主要产品有：高、中压细水雾自动灭火系统；高低压CO2、IG－541、 HFC-227等各类固定气体自动灭火系统；探火管自动灭火系统；各类无管网自动灭火系统；固定式、移动式泡沫灭火系统；各类自动喷水灭火系统；各类消防水炮；各类船用消防产品；多功能救援快艇；各类火灾报警控制器；各类普通灭火器等300多个品种的系列消防产品，是中国消防行业生产品种最全，制造能力最强的企业。公司在同行业当中率先通过了ISO9001质量体系认证，船用产品形式认证，水系统产品率先通过UL认证、FM认证。

In this thesis, I summarize the theoretical calculation method, applied scope and notice of siphonic drainage system, and point out the advantage of siphonic drainage system compared with gravitation drainage system. In the archetype experiment study of siphonic drainage tube, I adopt different tube diameter and different structural height to survey the drainage volume and press in different place. I observe various kinds of flow state, and get chief factors which influence hydraulic peculiarity of system as the tube diameter or structural height, and find out the relevance of factor to flux. I apply CFD Fluent software and adopt standard k-ε model and RNG k-ε model, then use finite volume method and second-order upwind scheme to discrete numerical model, while coupling numeration of velocity field and press is based on SIMPLE. In the numerical simulation of curved part of tube, siphonic drainage tube experiment system and multi-outlet siphonic drainage system, I make research on internal velocity and press of system in different project condition by changing the tube diameter of curved part, negative press value in tube export and improving the quantity of water gutter. This thesis first adopts a method of combining archetype experiment and numerical simulation to study the siphonic drainage system, test and verify the validity of experiment and numerical simulation, and makefurther study on system, it solves the problems of limited testing conditions, and has a logical results, it can provide a valid method for optimizing and designing the drainage tube-net system. The conclusion have referring value for study and design of siphonic drainage system.

本文首先对虹吸式排水系统理论计算方法、适用范围以及注意事项做出总结，并分析了虹吸式排水系统的优势；再对虹吸式排水管道进行原型试验研究，采用不同管径不同立管高度，对系统流量、管道压强进行量测，观察了各种工况下的流态，对其水力特性进行研究分析，找出影响水力特性的落差、管径主要因素以及与排水量的关系；进一步应用计算流体力学Fluent软件，采用标准κ-ε模型与RNGκ-ε模型，计算过程应用有限体积法和二阶迎风格式对数值模型进行离散，速度和压力的耦合采用SIMPLE算法，分别对系统弯管段、虹吸排水管道试验系统、多斗虹吸式排水系统进行数值模拟分析，通过改变管段弯头处半径、管段出口负压值、增加雨水斗数对不同工况下系统内部的速度和压力进行研究；本文首次采用结合原型试验与数值模拟相结合的方法，对虹吸式屋面雨水排水系统进行研究，试验与模拟相互验证，并进行拓展，很好地解决了虹吸式屋面雨水排水系统由于试验条件限制问题，结果正确合理，为排水管网系统设计和优化研究提供了有效的方法，对工程设计有较好的参考价值。

During the pipe pushing construction of the parallel steel water pipeline of Beidu-Yanger pipeline project in Ningbo, the pushing force in main pushing power station appeared unusual increasing and the construction had to be interrupted. Through the analytical comparison between theoretical and practical pushing curves as well as the analytical comparison between the tool pipe track and the form map of pipeline resting in soil, it was found that the excessive pushing force in main pushing power station was caused by excessive deviation adjustment angle which enabled the pipeline to over bend in a short distance.

在宁波市北渡－雅戈尔原水D1800mm钢管复线工程顶管施工中，出现主顶动力站顶力异常增大的现象，影响继续顶进施工，文章针对这一情况进行分析研究，通过理论顶力曲线与实际顶力曲线以及工具管所经轨迹与管道在土层中静止时的形态图的分析比较，得出主顶动力站顶力过大是因为在纠偏过程中纠偏角度过大，使管道在短距离内过度弯曲引起的。

Author has introduced the process design method for steam tracing system of chemical piping ;has discussed the relative regulation,code and gist in the steam tracing design at home and abroad from aspects of diameter,quantity,and max.

介绍了化工管道蒸汽伴热系统的工艺设计方法；从伴管的直径、数量、最大允许长度、U型弯累计上升高度以及伴管、疏水器、紧固件的材料等方面论述了国内外蒸汽伴管设计相关规定、规范和要点；结合工程实例，论述了伴管蒸汽的引入和伴管敷设时相关注意事项，以及在最大允许范围内出现袋形累计上升的高度值问题。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。