查询词典 valve control

This article mainly introduced completes with programmable software to the saccharification pot , the dextrinize pot, Boils the pot, the lye pot, the thermal flask, the ice watering can and the disc heat interchanger carries on the temperature xamination control, carries on the examination to the filter-tank temperature To the balance tank fluid position examination control, the thermal flask and the ice watering can fluid position carries on the examination; To wheat juice current capacity examination control, The steam current capacity carries on the measurement; To the saccharification pot, the dextrinize pot, boil the pot clamp cover steam pressure as well as the steam distributor pressure carry on the examination; To various unclear wines liquid pump, Delivers Mai Zhibeng, the mixer and various pipe-line valve according to each operating time order realization automatic control.

本课题综述了啤酒糖化过程自动化过程的软件设计，本文主要介绍了用VB语言来完成对糖化锅、糊化锅、煮沸锅、碱液罐、热水罐、冰水罐及板式换热器进行温度检测控制，对过滤槽温度进行检测；对平衡罐液位检测控制、热水罐和冰水罐液位进行检测；对麦汁流量检测控制，蒸汽流量进行计量；对糖化锅、糊化锅、煮沸锅夹套蒸汽压力以及蒸汽分配器压力进行检测；对各醪液泵、送麦汁泵、搅拌器及各管道阀门按各工作时间顺序实现自动控制。

Software to design. This article mainly introduced completes with programmable software to the saccharification pot , the dextrinize pot, Boils the pot, the lye pot, the thermal flask, the ice watering can and the disc heat interchanger carries on the temperature xamination control, carries on the examination to the filter-tank temperature To the balance tank fluid position examination control, the thermal flask and the ice watering can fluid position carries on the examination; To wheat juice 环境/给排水论文 current capacity examination control, The steam current capacity carries on the measurement; To the saccharification pot, the dextrinize pot, boil the pot clamp co 土建水利论文 ver steam pressure as well as the steam distributor pressure carry on the examination; To various unclear wines liquid pump, Delivers Mai Zhibeng, the mixer and various pipe-line valve according to each operating time order realization automatic control.

本课题综述了啤酒糖化过程自动化过程的软件设计，本文主要介绍了用VB语言来完成对糖化锅、糊化锅、工科论文煮沸锅、碱液罐、热水罐、冰水罐及板式换热器进行温度检测控制，对过滤槽温度进行检测；对平衡罐液位检测控制、热水罐和冰水罐液位进行检测；对麦汁流量检测控制，蒸汽流量进行计量；对糖化锅、糊化锅、煮沸锅夹套蒸汽机械设计压力以及蒸汽分配器压力进行检测；对各醪液泵、送麦汁泵、搅拌器及各管道阀门按各工作时间顺序实现自动控制。

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。

The use of temperature control through the transformation of the main pressure control for variable frequency control Shop for closed-loop motor pumps, water pumps, electric power saving rate of the average at more than 30%; 90KW chilled water pump motor current by adjusting the valve at the changes between the 163-148A, the average section less than 6% of electricity by the transformation of the closed-loop control of VVVF, the saving rate is more than 30%.

通过改造采用温度控制为主，压力控制为铺进行闭环变频控制水泵电机，水泵电机平均节电率都在30％以上；90KW冷冻水泵电机靠调节阀门电流在163—148A之间变化，平均节电不足6％，经闭环控制变频调速改造后，节电率平均也在30％以上。

For example: automatic temperature control, scattered converter (Patent No. 992398789), the modular air conditioning unit, temperature control, electrical control of the (cyclone air jet vents spherical, drum-shaped vents) and the temperature of the casual bar adjustable air volume flow, and replacement air, a pressure-type lifting-type air conditioners, high-grade muffler, all heat exchangers, air volume control valve setting, hospital operating rooms dedicated air-conditioning units and other products to improve and perfect the fan disk pipe, variable air volume air conditioners, aluminum tuyere, Pai fans and other products; to enhance the enterprise in the market's competitiveness and vitality.

自动温控散流器（专利号992398789）、组合式空调机组（拥有8项专利技术）、温控、电控的（旋流风口、射流球型喷口、鼓形喷口）和温控的条形可调风量散流器、置换风口、压出式吊装型空调器、高等级消声器、全热交换器、定风量调节阀、医院手术室专用空调机组等系列产品，改进并完善了风机盘管、变风量空调器、铝质风口、排风扇等产品；增强了企业在市场中的竞争能力和活力。

Main work of this text:First, in view of the use widespread some type parameter cage control valve, use the three-dimensional modeling software to establishment valve interior flow field model, through CFD preprocessor production computation grid, using CFD software to separate solve, may obtain the regulating valve interior flow field the visible graph, like pressure and velocity vectors chart, contour map and so on.

本文主要工作：一、针对使用广泛的某一类型参数的套筒型调节阀，应用三维建模软件建立阀门内部流场模型，通过CFD前处理器生成计算网格，应用CFD软件进行离散求解，可以得到调节阀内部流场的可视化图形，如压力、速度等矢量图，等值线图等。

The valve will shut off tight permitting it to be used as a stop valve as well as a manual control valve.

这种阀门能够紧密关闭，可以作为闭塞阀，也可以作为人工控制阀。

The system uses PID controller and fuzzy controller to design automatic control loops, a study of fuzzy three-element feed-water control system for a CFB municipal waste incinerator is introduced. The incinerator is faced with problems such as large-scale fluctuation of furnace heat load and low regulation resolution of main control feed-water valve. The fuzzy logic control system is applied to modulate PI control parameters according to steam drum water level to fit fluctuated heat load, the inner and outer control loops are realized in an asynchronous way to effectively decrease regulation time and improve regulation precision.

针对垃圾炉炉膛负荷波动较大，同时给水调节阀门执行机构的调节精度较低的现状，在传统三冲量串级汽包水位控制方式的基础上，采用模糊控制策略对内、外串级回路的PI控制参数进行分区域调整，强调了PI参数在被控参量处于不同范围时的分离作用，同时内、外控制回路采用异步控制方式，浙江大学硕士学位论文从而有效地减小了被控参量的调节时间，提高调节精度，使水位波动控制在△为士12~范围内。

In a word, through the present paper research work, carries on the improvement to the domestic existing subsurface safety valve structure , omits the complex locking machine , change the transformation way which connect the fluid control line and the tube inner safety valve and increased its reliability , build the foundation for the further scientifically studies of the subsurface safety valve system.

总之，通过本论文的研究工作，对国内现有井下安全阀的结构进行改进，省去复杂的锁定机构，改变了连通液控管线与管内安全阀时的连通转换方式，增加其可靠性，为进一步科学地研究井下安全阀系统打下了基础。

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。