管网叠压供水技术,terrace tube net water supply technique
1)terrace tube net water supply technique管网叠压供水技术
1.The expansion and application ofterrace tube net water supply technique in the engineering管网叠压供水技术在工程上的推广应用
英文短句/例句
1.The expansion and application of terrace tube net water supply technique in the engineering管网叠压供水技术在工程上的推广应用
2.Discussion about the Applicability of Pump in Network Pressure-superposed Water Supply System管网叠压供水系统中水泵适用性分析
3.Reforming water supply system based on the water supply equipment of network superposition(no vacuum)利用管网叠压(无负压)供水设备改造供水系统
4.Study and Development of Pump-selection Software for Network Pressure-superposed Water Supply System管网叠压供水系统水泵选型软件的研究与开发
5.Research on Dividing Districts and Optimization Technology of Water Supply Network of Mountainous Urban;山地城市供水管网分区优化技术研究
6.The Application and Research of the GIS Technology in the Water Supply Pipe Network;GIS技术在供水管网中的应用研究
7.Water supply network dispatcher s system based on SCADA and GIS technology;基于SCADA和GIS技术的供水管网调度系统
8.The Study of Ductwork Pressure Booster Distributed Control System Based on Wireless Communication Technology;基于无线通讯技术的管网叠压装置集散监控系统的研究
9.Based on GIS and SCADA Technology Water Supply Pipe Network Information Management System Design;基于GIS和SCADA技术的供水管网信息管理系统设计
10.Technique of Blocking Leakage under Pressurefor Water-supply Pipeline带压堵漏技术在供水管道抢修中的应用
11.Analysis about the Techno-economy Characteristics of the Water Supply and Price Management;供水网络技术经济特征及价格管理分析
12.Application Research of GPRS Technology in Water Supply Monitoring Net;GPRS技术在供水管网监测系统中的应用研究
13.A Wireless Data GPRS Transmission Monitoring System Based on Configuration Technology for the Water Supply Network基于组态技术供水管网GPRS无线数传监视系统
14.This paper introduces a method of optimization of supply chain through time compression using the technology of pipeline overlap.在描述供应链物流管线概念的前提下 ,提出了应用重叠技术的时间压缩优化方法 .
15.The performance analysis of supply chain using pipeline overlap;重叠技术在供应链物流管线性能分析中的应用
16.Discuss about the Construction Technique of Water Pressure Test on the Major Diameter Prestressed Concrete Supply Water Pipe s Joint;浅谈大直径预应力混凝土供水管接口压水试验施工技术
17.Research on Regional Water Supply Measure Technology in Plain River Network;平原水网地区区域供水计量技术研究
18.Study of the Effect on Municipal-Pipeline-Network Pressure by Secondary Water-supply;二次加压供水对市政管网压力影响研究
相关短句/例句
pipenet pressure-add water supply管网叠压供水
1.A simple discussion on intelligentpipenet pressure-add water supply technology;浅议智能型管网叠压供水技术
3)additive pipe pressure water supply system管网叠压供水系统
1.Transient simulation ofadditive pipe pressure water supply system管网叠压供水系统的瞬态模拟
4)pipe network add-pressure water supply equipment网叠压供水设备
1.This paper analyzed the application case of the components such as anti-backflow equipment or air-pressure tank that using in thepipe network add-pressure water supply equipment.本文对管网叠压供水设备中的倒流防止器和气压罐等器件的应用情况进行分析。
5)network superposition(no vacuum)water supply equipment管网叠压(无负压)供水设备
6)pressure-superposed water supply叠压供水
1.Application ofpressure-superposed water supply in pipe network;叠压供水方式在供水管网中的应用
2.It was pointed out that there exist some problems in the networkpressure-superposed water supply,such as low efficiency of pumps and low reliability of continuous water supply.指出目前管网叠压供水系统存在水泵运行效率低、连续供水可靠性下降等问题,叠压供水设备设计、安装、使用不当都会对供水系统产生不利影响。
延伸阅读
燃料混合管压形缩管模陕西科技大学(陕西咸阳 712081) 刘俊生 周明贵 张喜涛[摘要] 介绍了一种在机械压力机上实现较长尺寸缩管工件的成形模结构。关键词 闭合高度 缩管 脱模1 引言管材的缩管是常见的成形工艺,常用3种方法:1在缩管旋转机上进行;2在车床上旋压缩口,滚压加工;3用模具在压力机上进行。具体使用哪种方法,视工件要求而定。针对图1所示零件,采用压力机成形工艺比较合适。 根据零件尺寸,材料及计算结果,若在螺旋压力机或液压机上成形,由于工件成形所需压力很小,不能充分利用设备功率,且生产效率较低。故而选用机械压力机成形,模具设计中应重点解决由于工件缩管长度较长而引起的脱模困难,同时又要兼顾模具的闭合高度(在成形很小的情况下,模具闭合高度成为选用机床的主要因素)。2 模具结构 模具结构如图2所示。上内凹模2直接装在模柄上,夹持于滑块中,利用滑块中的打杆槽,装有上拉料黠构,上拉料结构由打料杆14,拉杆13,拉板12,螺栓8,顶杆10组成。下模板固定于工作台面,顶板9位于台面漏料孔中。其特点是:(1)利用冲床,滑块在缩门成形工序完成后拉动打料杆14,使与之连成一体顶杆10向上抬起,解决了由于工件缩口长度较长而引起的脱模困难。(2)顶板9置于工作台漏料孔中,即有效利用机床闭合高度,又减少于模具体积。3工作过程 冲床滑块上升至上死点时,穿在滑块上的打料杆14带动上拉料组件以至最高点。放管材于定位板4的定位孔中。滑块下行,定位销3导正管材上端进入上凹模2定位孔中后,滑块施轴向力于管材端面.通过模芯11进行缩口,最后通过定位板4与上内凹模进行凸台压形,模芯11和上凹模2材料选用W18Cr4v,热处理硬度61—63HRC。同时,上拉料组件也随滑块一起下降之下死点,压形,缩口完成后,随着滑块一起上升的上拉料组件中的顶杆10抬起工件,取出工件。4 效果该模具装于400kN偏心冲床(闭合高度300mm,工作台孔直径∮200mm)上,经过近十万件产品的生产,模具基本完好,满足了生产的要求。