By means of variable frequency and adjustable speed, the variable air volume air conditioning automatic control system saves energy through setting different static pressure values in different time periods. 变风量空调控制系统以变频调速为手段,分时段设定静压值以实现节能。
The correct using and setting of pressure meter is important, for logging success, which is demonstrated by practice. 用实例说明了在煤层气井注入压降试井中如何正确使用和设置。
Except for the obvious pump problems ( such as make sure that the pump can feed water under the setting pressure); other problems also will affect the work piece precision. 除了明显的泵问题(例如确保泵在设定压力下输送水)之外,其它问题也会影响工件精度。
Chapter four analyzes the static working state of the servo-overflow valve that is the key spare part of setting up four-dimensional pressure. By studying the control law, joint control has been realized between PLC and computer. 第四章分析了建立四维压力的关键部件&伺服溢流阀的静态工况,经过对控制规律研究,实现了可编程控制器PLC与计算机联合控制。
The principle and basis for setting atmospheric pressure limit during torpedo launching in submarine compartment 鱼雷发射时潜艇舱室空气压力限值制定的原则及依据
A new consideration about geotectonic setting of high pressure granulite belt in northwestern Hebei Province 冀西北高压麻粒岩带构造环境的再思考
When the tension formed by the setting pressure is greater than the tension of the elastic claws, the elastic claws open outwards, the mandrel goes down and the compression packing element is set. 当遇阻压力或坐封压力形成的向外张力大于弹性爪张力时,弹性爪向外张开,心轴下行,压缩胶筒坐封。
Setting high pressure cold separator in hydrocracking unit and its safety 加氢裂化装置冷高压分离器控制系统的设置及其安全性
The selection of pressure setting pattern and constant pressure point in hot water heating system is very important for the operation of the system. 热水采暖系统的定压方式与定压点的选定对系统的运行至关重要。
All its characters fulfill the requirement. On the basis of the digital data processing, the decision of the cannon chamber testing system is less than 0.7%, which satisfy the need of setting cannon chamber pressure dynamic testing calibration system. 火炮膛压动态校准系统的精度也在数字数据处理的基础上,系统误差小于0.7%,满足了建立火炮膛压测试动态压力校准系统的要求。
Objective To observe the effect of transducer tube system filter setting on arterial pressure. 目的观测动脉测压系统滤过频率的设定对血压的影响。
Because of large difference in elevation in this district a new technology as setting pressure as zone with direct networking is adopted. 因该区采暖用户高差悬殊较大而不得不采用分区定压直接连网新技术。
Its effect is simulated when setting a gas pressure accumulator near the valve. 在阀门处安装蓄能器,对其减振效果进行了仿真。
Conclusion The setting pressure of CPAP should be properly adjusted corresponding to the output terminal pressure, or there would be direct impact on the effect of therapy and long-term compliance. 结论应适当调整正压通气治疗仪的设定压力与输出终端压力值,使两者相吻合,否则将直接影响患者的治疗效果和长期应用的顺应性。
Dynamic characteristic of a system for automatic boosting the setting pressure of powered support 液压支架自动增压初撑系统动态特性的研究
The Principle of Setting Main Steam Pressure at the Inlet of Turbine and Its Improvement 机前主蒸汽压力设定的原则与改进
When setting positive pressure mechanical air supply system in smoke controlling stair hall, the outer window in the hall must be fixed. 楼梯间设置正压送风系统时,楼梯间设置的外窗应明确为固定窗;
Setting of the pressure parameters for the injection machine 注塑机压力参数的设定
In this system, according to the work characteristic of emulsion pump, sensor is used to test the work pressure of emulsion pump and the single chip is used to control the unloading of emulsion pump, so emulsion pump can be controlled to work within setting pressure. 在本系统中根据乳化液泵的工作特点,利用压力传感器检测系统的工作压力,通过单片机控制乳化液泵的卸载,使乳化液泵工作在设定的压力范围内;
This paper introduces the existing problems and the process of remolding for the elevating organ of 40t-fuel-al mixed furnace door and specifies the remolding methods for the hydraulic pressure principle, the setting of the hydraulic pressure station and the hydraulic pressure vessel of the furnace door elevating organ. 介绍了40t燃油铝混合炉炉门提升机构改造前存在的问题及改造过程,并对炉门提升机构液压控制原理、液压站布置、液压缸的改造方法进行了详细说明。
This ultrasonic method of measuring the burning rate is used to determine continuous in situ burning rate in different setting pressure variable condition. 它可以设置不同的压强变量条件来进行连续的实时燃速测量。
This paper describes the development of high pressure water discaling. The point introduced the selecting and setting of the high pressure nozzle, and selecting of water pump. 叙述了高压水除鳞技术的发展,结合实际重点介绍了高压水除鳞系统中喷嘴的选型和布置设计、水泵的选型设计。
Deduced formulas of Liquid_Solid transform rate and chamber pressure for chamber pressure adjustment and setting pressure values in the control system. 通过对生产工艺的热力学分析推导出了干冰得率的理论公式和干冰机腔室压力公式,为生产过程中的压力调节以及控制系统中压力值的设定提供了理论依据。
The loading unit realized the recycle of power as well as the perfect loading for constant torque by means of setting up pressure in advance. 加载单元,不仅能实现功率回收,还可通过预建压的方法,实现理想的恒扭矩加载。
The design of high pressure water flow system and the basic calculation method were introduced, including the description of the mechanism of high pressure water discaling, the selecting and setting of the high pressure spray nozzle, and the automatic controlling for the whole system. 叙述了高压水除鳞的机理、高压喷嘴的选择及安装等,重点介绍高压水系统的设计及基本的计算方法;对系统的自动控制作了简要说明。
Pressure Setting Pattern and Constant Pressure Point of Hot Water System 热水系统的定压方式与定压点
Setting the pressure casting process and parameter 高压注浆成形工艺步骤及参数确定原则的探讨
The setting of soil pressure, the setting of grouting parameters and the controlling of shield posture, points of EPB shield construction are analyzed and summarized. 2. 分别对土仓压力设定、注浆参数设定、盾构姿态控制等进行了分析,总结了土压平衡盾构施工技术要点。
In view of the current air cold island control in the system of back pressure value selection problem, and at the condition of the actual production, this text proposes options for automatically setting back pressure. 针对目前空冷岛控制系统存在的背压设定值选择问题,从生产实际出发,提出背压设定值自动选择方案。
The experimental results show that ink pressure control program performs well in this system. During the control progress, ink pressure can full meet the setting pressure with small steady-state error, high precision, and fast response speed. 实验结果表明,在本文设计的墨路系统中采用该墨压控制方案,系统输出墨压稳态误差小、响应速度快、跟随精度高。