查询词典 air pressure

According to evaluation of the thermal, hydraulic, environmental and mechanic characteristics and energy performance of building and VAV air-conditioning system, and evaluation of the control performance of local control loops using the simulator of VAV system, this paper presents five on-line supervisory control strategies for local control loops: on-line optimization of VAV supply air static pressure set-point, on-line optimization of AHU supply air temperature set-point, on-line optimization of on/off set of CAV sub-system, on-line optimization of outdoor air set-point and on-line optimization of chilled water secondary pump pressure set-point.

通过数字仿真器对建筑物及其变风量空调系统的热力、动力、环境和能耗等运行特性的模拟，以及对系统常规采用的下位机控制回路可控性和稳定性等控制特性的研究和分析，本文先从局部的角度开展了系统局部优化的研究。提出并在仿真器上分别实施了VAV送风静压设定的实时优化，AHU送风温度设定的实时优化，CAV子系统开／停的实时优化，新风量设定的实时优化以及二级泵冷媒水供水压差设定的实时优化。

So in this paper based on the characteristics and the optimum state theory of the vehicle, some kinds of control schemes are compared and discussed, and the fuzzy PID control scheme is adopted at last. The relation between air-cushion pressure and fan rotational speed on the optimum driving state is studied. The cushion pressure is used as controlled variable and the fan revolution is used as regulated variable. And transducer and fan motor are actuators.Based on the structure and operating properties of half-tracked air-cushion vehicle, the control system scheme and structure are presented. A control scheme using the self-tuning PID fuzzy logical controller is adopted. Fuzzy rules are set up and some researches have been done for fuzzy tuning method. At the same time the real-time measurement scheme by computer control is proposed, and electric circuits are designed. In the control system of half-tracked air-cushion vehicle cushion pressure P〓 is used as controlled variable and the fan speed n〓 as regulated variable.

因此本文以半履带式气垫车的特性和最佳工作状态理论为指导，通过对各种控制方法的比较与探讨，提出采用模糊PID控制方案，并且研究了在最佳工作状态下垫压及风机转速的关系，提出气垫压力作为控制参数，变频器和风机电机为执行机构，风机转速为调节量；主要进行了自整定模糊PID控制器的设计，研究了自整定PID模糊控制器的实现方法，编制了模糊控制规则，制定了模糊控制参数查询表，并分析了影响自整定模糊控制器相关的影响因素，确定了模糊控制表；为了实现半履带式气垫车的自动控制，还提出了计算机模糊控制系统的原理与结构，设计了相应的测量电路与控制软件。

The company mainly produces air breathing apparatus, positive pressure air respirators, emergency escape breathing apparatus devices | EEBD, marine oil-water separators | Marine oil-water separator devices | Marine Bilge oil water separator devices, marine fire equipment | fire equipment, positive pressure breathing apparatus air cylinders standby, marine fire extinguisher, PQ8.C foam-type portable air gun device, the international shore connection, fire insulation clothing | clothing insulation, fire anti-chemical suits, many with water cannon, fire-resistant rope | refractory lifeline, explosion-proof lights, the release of hydrostatic pressure, and heat appliances, life jackets, life-saving thermal insulation suits, life buoy, life jacket lights, life buoy lights, liferaft lights, life raft racks, marine oil-water separator devices, marine red flame signal, Marine orange smoke signal, lifebuoy from the bright lights floating smoke signal, lifebuoy with orange smoke signal, Marine line-throwing equipment, marine life-saving throw rope, and marine oil-water separator devices, etc. Products.

公司主要生产的空气呼吸器，正压式空气呼吸器，紧急逃生呼吸器装置|EEBD，船用油水分离器|船用油水分离器装置|船用舱底油污水分离器装置，船用消防员装备|消防员装备，正压式空气呼吸器备用气瓶，船用灭火器，PQ8.C型手提式空气泡沫枪装置，国际通岸接头，消防隔热服|隔热服，消防防化服，多用水枪，耐火绳|耐火救生绳，防爆灯，静水压力释放器，保温用具，救生衣，保温救生服，救生圈，救生衣灯，救生圈灯，救生筏灯，救生筏架，船用油水分离器装置，船用红色火焰信号，船用橙色烟雾信号，救生圈自亮浮灯烟雾信号，救生圈用橙色烟雾信号，船用抛绳设备，船用救生抛绳器，船用油水分离器装置等产品。

Air Permeameter, Coefficient of Air Seepage, Air Permeability in Constant Pressure, Air Permeability in Veriable Pressure

我们从1974年开始了渗气仪的研制工作，同年试制成ZC一3型渗气仪，并用于陕西省

An original exhausted-air reclaiming technical method has been presented, that is to say, the discharging chamber's pressure-air is reclaimed into the air tank through the additory of the exhausted-air reclaiming control devices which can be considered as the mid-pressure air supply for reutilization in order to realize the aim to save energy.

论文提出了一种创新性的气缸排气能量回收技术途径：通过附加排气回收控制装置将气缸排气腔的有压空气回收到储气罐中，并作为中压空气源再利用，以实现节能。

Bioclimatic architecture realizes low energy-consumption natural ventilation: the squama-curtain of TBA TOWER has opening window and special ventilation fan, realizing air ventilation across both sides of the mansion through pressure difference between windward side and leeward side, under the condition of no pressure difference, it can form chimney effect through vacant areas in the mansion, create negative pressure in the internal capsule, import air into device layer and discharge it, realizing the circulation of fresh air, not only saving energy and improving air quality in the room, but also bringing benefits to the health and mind of inhabitants.

生物气候建筑实现低能耗自然通风：TBA TOWER鱼鳞状外幕墙设计有开启扇及专有的通风器，通过建筑迎风面与背风面的压力差实现建筑两面的窗户空气流通；在没有两面压差的情况下，可通过建筑内的挑空区形成烟囱效应，在内囊造成负压，将空气引入设备层排出，实现新鲜空气的流通，既节能、又可改善室内空气品质，利于居者的身心健康

The results show that the air crossing pressure pulse magnitude of the container generated in the tunnel is 3.46 times that generated in open air when container flat wagon at the speed of 160 km/h passed by EMU moving at the same speed. Both the lateral force and overturning moment of the container train during the crossing induced in open air and tunnel are approximately proportional to the square of running speed of the passing train. The pressure of crossing side and uncrossing side for the container flat wagon is almost equal since the one-dimensional characteristic of pressure distributing induced in the tunnel is not faintish. Consequently, the value of the lateral force and overturning moment of the container train generated in open air is greater than that generated in the tunnel, about 1.1 times.

研究结果表明：集装箱平车以160 km/h的速度与动车组等速交会时，在隧道内会车时车载集装箱中部压力变化幅值是在明线会车时的3.46倍；在明线和隧道内会车时，集装箱列车受到的侧向力和侧滚力矩均与交会列车运行速度近似成平方关系；因隧道内压力分布一维特性较强，集装箱平车交会侧与非交会侧压力相差并不大，因此，在明线会车时集装箱平车受到的侧向力和侧滚力矩均比隧道会车时的大，大约是其1.1倍。

Main Product or Service: hot air pipe; PUR tube; Teflon high-pressure tube; high-pressure tubing; metal hose; hot-air tube; silicone hot-air tube; high pressure air tube; anti-scalding temperature Teflon tube; ultra-high pressure pipe; PTFEHOSE tube; Teflon products; Express connector; anti-hot Teflon tube; pack cotton Teflon tube; import Teflon tube; all-electric injection molding machine oil; Die Tap; hardware accessories; stainless steel tube; Main industries: insulating casing; integrated companies; machine Auxiliary; Chemical Equipment agent; other unclassified; Hydraulic pipe fittings

主营产品或服务：热风管；PUR管；铁氟龙高压管；高压油管；金属软管；热风管；硅胶热风管；高压空气管；防烫铁氟龙高温管；超高压管；PTFEHOSE管；铁氟龙制品；快速接头；防烫铁氟龙管；包棉铁氟龙管；进口铁氟龙管；全电动注塑机专用油；模具水嘴；五金配件；不锈钢管；主营行业：绝缘套管；综合性公司；塑机辅机；化工设备代理；其他未分类；液压管件

Before fire lift room establishment positive pressure supply-air outlet, when after fire prevention alarm system warning, opens the related spot positive pressure supply-air outlet by the fire controller control, the linkage opening positive pressure air feeder, will possess the operation signal returns fire prevention control room; When opens the gusty area by the manual operation organization, can also the linkage opening positive pressure air feeder.

在消防电梯前室设置正压送风口，当消防报警系统报警后，由消防控制器控制打开相关部位正压送风口，联动开启正压送风机，将所有动作信号返回消防控制室；当由手动操作机构打开风口时，也能联动开启正压送风机。

Before fire lift room establishment positive pressure supply-air outlet, when after fire prevention alarm system warning, opens the related spot positive pressure supply-air outlet by the fire controller control, the linkage opening positive pressure air feeder, will possess the operation signal returns fire prevention control room; When opens the gusty area by the manual operation organization, can also the linkage opening positive pressure air feeder.

在消防电梯前室设置正压送风口，当消防报警系统报警后，由消防控制器控制打开相关部位正压送风口，联动开启正压送风机，将所有动作信号返回消防控制室；当由操作机构打开风口时，也能联动开启正压送风机。

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。