阀门

Shanghai and Shanghai Valve Factory workers are a collection of scientific research development, manufacturing, sales and service in one large state-owned enterprises valve, is the most important and biggest gate valve, globe valve, ball valve, butterfly valve, hydraulic control valve excellent suppliers.

上海沪工阀门厂是一家集科研开发、生产制造、销售服务于一体的大型国有阀门企业，是全国最主要的和最大的闸阀、截止阀、球阀、蝶阀、水力控制阀的优秀供应商之一。

Valve is being used as a tank outlet control of dry Calcium Oxide in gravity feed discharge to the blast furnace and is cycled one time every six hours to empty silo in three minutes.

阀门作为贮料筒仓的出口控制装置，用来控制生石灰在重力作用下排放到炼钢炉中。这个阀门每六小时就要循环操作一遍，要求在三分钟内清空贮料筒仓。

Reducing gear drives cam rotate to top half-turn and link gear of upper gate move, top disc opens and discharges. Spring device makes disc close and replace with displacement of cam. When cam rotates to bottom half-turn link, gear of sub-layer gate moves, below disc opens and discharges. The disc closes little by little with the displacement of cam. These two actions maintain a closed state of either disc on the pipe. So it can discharges and lock air at the same time.?

减速装置带动凸轮旋转至上半圈时，上层阀门的连杆机构互动，阀板逐渐打开卸灰，随着凸轮的旋转，弹簧机构使阀板逐渐关闭复位；凸轮旋转至下半圈时，下层阀门的连杆机构互动，阀板逐渐打开卸灰，随着凸轮的旋转又使阀板逐渐关闭，这样两个动作使管道上阀板始终有一个是关闭状态，因而，可使卸灰与锁气同时达到目的。

The Hawse pipe Valve features a cast iron body, bronze guide rings to position the cable at the center of the valve and a heavy-duty elastomer pinch sleeve.

锚链管道阀门采用铸铁阀体，将缆索定位在阀门中心的青铜导环，以及重型人造橡胶夹套管。

The design of hardware and software of the host computer and the slave computer are introduced in detail .

在系统中，除保留了原有电动阀门的现场控制功能外，增加了远程控制，并增加了阀门故障信号的采集，便于

We test our hydrofluoric acid valves at extended time periods that further assure the quality of the valve performance.

我们加长了检测我们的氢氟酸阀门的时间段，这样就进一步保证了阀门性能的质量。

If the cylinder has dual valves, the inert gas can be added through the gas-phase valve.

如果钢瓶有两个阀门，惰性气体可以通过气相阀门加入。

In initial state the power from valve is off and the valve is inoperative.

在初始状态，从电源关闭阀门和阀门的操作。

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。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。