查询词典 water valve

This paper introduces how to use PLC realize PID automation control system in constant liquid level system of waterworks though a instance project. It adjusts liquid level by control the valve though PID arithmetic and deals with outside program, makes the liquid level constant at the expectation value. The adjusting time is the same as manual control, but the water quality is better. Its advantages are reaction rapidness, auto-control disengage intervenor, quick protection of fault, more safety and stabili...

本文以一工程实例介绍了如何用PLC在水厂的滤池实现PID恒水位控制，它通过PID算法和外围的程序处理，通过控制阀门开度来调节水位，使水位基本恒定在期望值，并且阀门调节次数基本与手动调节一样，但水质却明显好很多，更重要的是对现场适应能力强，反应快，而且完全脱离人为干预进行全自动控制，对故障也有快速保护，更具安全稳定性。

This paper introduces how to use PLC realize PID automation control system in constant liquid level system of waterworks though a instance project. It adjusts liquid level by control the valve though PID arithmetic and deals with outside program, makes the liquid level constant at the expectation value. The adjusting time is the same as manual control, but the water quality is better. Its advantages are reaction rapidness, auto-control disengage intervenor, quick protection of fault, more safety and stabilization.

本文以一工程实例介绍了如何用PLC在水厂的滤池实现PID恒水位控制，它通过PID算法和外围的程序处理，通过控制阀门开度来调节水位，使水位基本恒定在期望值，并且阀门调节次数基本与手动调节一样，但水质却明显好很多，更重要的是对现场适应能力强，反应快，而且完全脱离人为干预进行全自动控制，对故障也有快速保护，更具安全稳定性。

We might want to empty a keg to make room for a fresh WATER POWER CONTROL VALVE beer.

我们可能要空一小桶，使新鲜啤酒的房间。

Never developing a new style, nay never in indiscretion, nay nay, never shallow or deep from time to time nay, never gloriously radiant Rightwards a bit, guide rainstorms rightwards a bit leftwards a bit, direct lovers leftwards a bit downwards a bit, move heads rightwards a bit upwards a bit, put today upwards a bit Loosen the rigid death tighten the valve of the spring make the amended narration more plain and simple make the soft whips more straight and frank The wind travels on the water ahead the feet walk on the earth behind in the middle I persist in my old ways well, why not a little more humble Well, why not a little more noble Translated by Guo Hezi

不能独辟蹊径，绝对不能不能轻举妄动，绝对不能绝对不能，不能忽浅忽深绝对不能，不能光芒万丈向右一点，把暴雨向右移一点向左一点，把情人向左移一点向下一点，把头颅向下移一点向上一点，把今天向上移一点把坚固的死亡松动一下把春天的阀门拧紧一下让修补的叙述通俗一些让柔软的鞭子耿直一些前面有风行水上后面有脚踏实地中间有我行我素哎，能不能再委琐一点哎，能不能再高尚一点

The cause of fracture of a water supply valve used was analyzed by macrophoto,chemical composition analysis,metallography and mechanical performance.

针对使用中的自来水阀体断裂破坏，进行了宏观形貌、材质化学成分、金相组织、力学性能等失效分析工作。

Centrifugal energy saving analysis and measures: 1 improve the efficiency of centrifugal pumps a first step, in the selection of comparison, when many suppliers Selection program, in considering the cost-effective choice as far as possible under the premise of efficient programs; the second step , accredited professionals must Mill producers, affecting the pump efficiency of the key components such as impellers, pump body, pump cover, diversion devices, such as the manufacture of quality producers, especially for the airfoil impeller , outlet angle, leaves the sub-degrees, the shape of flow channel, to control the quality of finish, etc., so that products are delivered in the current production under the conditions of highly efficient products; the third step, the scene in the production of installation and debugging process, pump to ensure a solid foundation, with the driving machine for good, before and after valve flexible piping layout design is reasonable, on-site control is feasible and safe, the complete and accurate monitoring instrumentation to ensure that pump operation can carry out real-time monitoring; fourth step , are at long-term operation of water pumps necessary to pay attention to the equipment inspection and found anomalies reflect real-time reporting, in the normal minor repairs, overhaul cycle, to deal with the replacement of wearing parts inspection to ensure the pump's long-term safe and efficient operation.

第一步，在选型时多比较各供应商的选型方案，在考虑性价比的前提下尽量选用效率高的方案；第二步，派驻一定的专业人员驻厂监制，对影响水泵效率的关键零部件如叶轮、泵体、泵盖、导流器等的制造质量进行监制，尤其对叶轮的翼形、出水角、叶片的分度、流道的形状、光洁度等质量进行控制，使交付的产品是在当前的生产条件下的高效率的产品；第三步，在生产现场的安装调试过程中，要保证泵的基础牢靠，与驱动机对中良好，前后阀门开关灵活，管道布置设计合理，现场控制安全可行，各运行监控仪表齐全准确，保证泵的运行过程能够进行实时监控；第四步，是在水泵的长期运行中要注意对设备的点检，发现异常情况即时反映汇报，在正常的小修、大修周期中，应对各易损件进行检查更换，保证泵的长期高效安全的运行。

FORT GIBSON, OK ― A faulty valve at the Fort Gibson water treatment plant has cause what could amount to a $25,000 repair bill, according to a December 2 Muskogee Phoenix story.

吉布森堡，美好-在吉布森堡污水处理厂阀故障的原因可能构成25，000元的维修清单，根据12月2日马斯科吉凤凰城的故事。

It should be noted that setting up to water hammer overpressure valve is not reliable.

水锤通常是通过调试来发现并合理解决；在设计阶段通常不予考虑。

Angle seat valve from our company is easy for installation, anti-rust, with lower flow-resistance and pretty long life. They are applied widely in weave, printing and dyeing, packinghouse, foaming plastic, polluted water treatment, etc., and get praise from customers.

尤其是我公司生产的角座阀具有易按装、耐腐蚀、流阻低及超长使用寿命等特点，被广泛应用于纺织印染、食品加工、泡塑机械、污水处理等行业，深受客户好评。

Therefore, the company decided to design and development of pressurized water reactor nuclear power plant valve.

所以，公司决定设计开发压水堆核电厂球阀。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。