查询词典 air pressure

Bellows Gate Valves However, in large differential pressure operating conditions, evaporation pressure has eased, the evaporator load requirements of the fluid volume decreased, but the actual situation the contrary, in the suction superheat unchanged, due to evaporation pressure has eased, the evaporator outlet pressure be reduced accordingly, pressure changes above and below the diaphragm, causing the main valve opening increases for increased fluid; but in a small pressure operating conditions, evaporation pressure rise, evaporator load demand for fluid volume increased, but the reality is that in the suction gas superheat unchanged, due to evaporation pressure rise, a corresponding increase in the evaporator outlet pressure, pressure difference above and below the diaphragm smaller, so that the main valve opening decreased for the reduction of liquid volume; in variable load is all about.

但在大压差工况下，蒸发压力降低，蒸发器负荷需求的液量减少，但实际情况相反，在吸气过热度不变的情况下，由于蒸发压力降低，蒸发器出口压力相应降低，膜片上下的压差变大，使主阀开度增大，供液量增加；但在小压差工况下，蒸发压力上升，蒸发器负荷需求的液量增多，但实际情况是在吸气过热度不变的情况下，由于蒸发压力上升，蒸发器出口压力相应提高，膜片上下的压差变小，使主阀开度减小，供液量减少；在变负荷下亦如此。

However, in large differential pressure operating conditions, evaporation pressure has eased, the evaporator load requirements of the fluid volume decreased, but the actual situation the contrary, in the suction superheat unchanged, due to evaporation pressure has eased, the evaporator outlet pressure be reduced accordingly, pressure changes above and below the diaphragm, causing the main valve opening increases for increased fluid; but in a small pressure operating conditions, evaporation pressure rise, evaporator load demand for fluid volume increased, but the reality is that in the suction gas superheat unchanged, due to evaporation pressure rise, a corresponding increase in the evaporator outlet pressure, pressure difference above and below the diaphragm smaller, so that the main valve opening decreased for the reduction of liquid volume; in variable load is all about.

但在大压差工况下，蒸发压力降低，蒸发器负荷需求的液量减少，但实际情况相反，在吸气过热度不变的情况下，由于蒸发压力降低，蒸发器出口压力相应降低，膜片上下的压差变大，使主阀开度增大，供液量增加；但在小压差工况下，蒸发压力上升，蒸发器负荷需求的液量增多，但实际情况是在吸气过热度不变的情况下，由于蒸发压力上升，蒸发器出口压力相应提高，膜片上下的压差变小，使主阀开度减小，供液量减少；在变负荷下亦如此。因此热力膨胀阀在变工况下供液量的调节方面需进一步改进。

Pressure governor valve is the use of a spring-loaded power and pressure balance theory, when the spring-loaded pressure less than atmospheric pressure and the valves closed when the pressure is greater than the spring-loaded rubber tubing stretch when the bottom of compressed air diaphragm, diaphragmthe effort to promote diaphragm upward and left vavle seat blow the air flow of gas, this would piston shirking role in the pressure mobile, Selection will be emissions from valve seat, air compressors made by the then air into the gas valves and exhaust emissions is through the mouth into atmospheric

调压阀的原理是利用了弹簧力与压力相平衡的原理，当弹簧的压力小于气压的时候阀关闭，当压力大于弹簧的弹力时候橡胶调压膜片下方的压缩空气对膜片的作用力，推动膜片向上拱曲离开阀座而使空气流入气腔，此时卸荷活塞在气压作用下移动，将排放阀门推离阀座，于是由空气压缩机充入气腔的空气便通过排放阀和排气口排入大气空气压缩机空转。

The static model of torsion joint is based on that of bending joint. The effects of structure parameters inside air pressure, initial angle, rube average radius, rube shell thickness on the turning angle are analyzed and the following conclusions are drawn: the relationship between the angle of torsion joint and the inside air pressure is basically linear, the angle of torsion joint increases with the initial angle and rube average radius, the angle of torsion joint decreases while the rube shell thickness increases. The kinetic equation is built for torsion joint. Simulating experiment implies that the time of inflating and deflating process is extremely shorter than that of kinetic process. So the pneumatic process can be ignored in actual system design and control. The factors that affect the dynamic features of torsion joint, such as shell thickness of rubber tube, average radius, initial angle, connector's outlet area, moment of inertia and viscous damping coefficient, are analyzed and the following conclusions are drawn: the change of rube shell thickness has no effects on the dynamic process of FPA inside air pressure while greatly affects the turning angle of torsion joint; when the rube shell thickness is small, the torsion joint has a bigger turning angle, no overshoot and long risetime, when the shell thickness is big, the turning angle of torsion joint is small, but has high response speed, overshoot and low shock; when the rube average radius increases, the turning angle of torsion joint increases and the overshoot increases too; when the initial angle of torsion joint is big, the turning joint is big, the overshoot is small and shock is low, but the risetime is big; the connector's outlet area affects the dynamic process of FPA inside air pressure greatly, but has no effects on the dynamic process of turning angle; moment of inertia and viscous damping coefficient have no effects on the dynamic process of FPA inside air pressure, but affect the dynamic process of turning angle greatly.

在弯曲关节模型推导的基础上，建立扭转关节的静态模型，并分析了扭转关节内腔压力，初始转角，橡胶管平均半径，橡胶管壁厚等参数对关节转角的影响，得出扭转关节的转动角度与充入FPA内腔的压缩气体压力之间基本呈线性关系，扭转关节的转角随初始角度和橡胶管平均半径的增大而增大，扭转关节的转角随橡胶管壁厚的增大而减小的结论；建立了扭转关节的动力学方程，仿真实验表明FPA的充放气过程与扭转关节的动力学过程相比时间极短，在实际系统设计和控制过程中可以忽略不计；分析讨论橡胶管壁厚，平均半径，初始角度，气体节流口面积，转动惯量，粘性阻尼系数等因素对扭转关节动态特性的影响，得出橡胶管初始壁厚的变化对扭转关节FPA内腔压力的动态响应几乎没有影响而对关节转角的响应曲线影响比较明显，壁厚较小时，关节可以得到较大的转角，并且转角的响应曲线没有超调，但上升时间长，壁厚较大时，关节转角变小，响应加快，但是有超调和轻微振荡现象，橡胶管平均半径越大，得到的关节转角越大，但是转角响应的超调量也随之增大，FPA的初始角度越大，关节的转角越大，并且超调量减小，振荡减弱，但是上升时间增大，管接头出口面积的大小对关节FPA内腔压力的建立过程影响较大，但对关节转角的动态响应几乎没有影响，转动惯量和粘性阻尼系数对FPA内腔压力的动态过程几乎没有影响而对扭转关节转角有较大影响等结论。

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。

Pressure Gauge:Corrugate Pipe Type Precision Pressure Gauge and Vacuum Gauge、Corrugate Pipe Type Pressure Gauge,Combined Pressure And Vacuum Gauge And Vacuum Gauge, Capsule Pressure Gauge, Recording Pressure Gauge, Tyre Pressure Gauge, Pressure Controller, Digital Pressure Gauge

压力仪表：弹簧管式精密压力表和真空表、弹簧管式一般压力表、压力真空表和真空表、膜盒压力表、记录式压力表、压力真空表及真空表、轮胎压力表、压力控制器、数字压力计

Pressure Instruments: Spring type precision pressure gauge and vacuum tube sheets, tube springs a general gauge, pressure vacuum gauge and vacuum gauge, diaphragm pressure gauge, record-type pressure gauge, pressure vacuum gauge and vacuum gauge, tire pressure gauge, pressure controller, digital pressure gauge

压力仪表：弹簧管式精密压力表和真空表、弹簧管式一般压力表、压力真空表和真空表、膜盒压力表、记录式压力表、压力真空表及真空表、轮胎压力表、压力控制器、数字压力计； 24。

The company has independently developed, development, production of the products have six series, more than 400 varieties, including: wire and cable series: high-temperature compensation wire, control cables, fire-retardant cables, anti-corrosion cable, power cable, 6 ~ 110KV crosslinked power cables, computer cables, silicon rubber cables, high temperature cables, fire-resistant cables, low smoke low halogen, low smoke zero halogen cables, such as the main cable tray; Temperature Instrument Series: ITS900 in line with the International Temperature Scale and IEC standards A, B-grade Thermocouple , Explosion-proof Temperature Transmitter integration, intelligent all-input temperature transmitter; Pressure / Differential Pressure Meter Series: general pressure gauges, precision pressure gauges, pressure / differential pressure switch, the general stress / Differential Pressure Transmitter, 1151 , 3051 smart capacitive pressure / differential pressure transmitter; Level Instrument Series: glass / glass level gauge, quartz glass tube liquid level, the electric-contact level gauge, magnetic liquid level transmitter, magnetic liquid level switch, input-type hydrostatic liquid level transmitter, liquid level transmitter float electricity, etc.; Flow Meters Series: All English Intelligent Vortex Flowmeter, Turbine Flowmeter; Display Instrument Series: Intelligent Control LED digital display device, Intelligent LCD screen controlled device, Guangzhu instructions figures, such as conditioning Alarm.

公司自主研制、开发、生产的产品主要有六大系列、400多个品种，其中有：电线电缆系列：高温补偿导线、控制电缆、阻燃电缆、防腐电缆、电力电缆、6～110KV交联电力电缆、计算机电缆、硅橡胶电缆、高温电缆、耐火电缆、低烟低卤、低烟无卤电缆主电缆桥架等；温度仪表系列：符合ITS900国际温标和IEC标准的A、B级热电偶，防爆型一体化温度变送器、智能全输入温度变送器；压力/差压仪表系列：一般压力表、精密压力表、压力/差压开关、普通压力/差压变送器，1151、3051智能电容式压力/差压变送器；液位仪表系列：玻璃管/玻璃板液位计、石英玻璃管液位计、电接点液位计、磁性液位变送器、磁性液位开关、投入式静压液位变送器、电浮筒液位变送器等；流量仪表系列：全中文智能涡街流量计、涡轮流量计；显示仪表系列：智能LED数字显示调节控制仪、智能LCD界面显示调节控制仪、光柱指示数字显示调节报警仪等。

Shenling has drafted the following national standards independently: air handling units for operation room, entire fresh air type dehumidifier units and low temperature packaged air conditioners.shenling has taken part in drafting the national standards: dehumidifiers, energy efficiency limit value of the chillers and its energy efficiency ratio grade, energy efficiency limit value of the packaged air conditioner and its energy efficiency ratio grade, rooftop air-conditioners, vapor compression cycle chillers, for industry and commerce use and similar purpose chillers, packaged air conditioners, changeable air amount terminal units, aeration equipment for air energy reclaiming, core documents of quality standards for constructing project products, positive displacement compressing condensers, heat pump chillers,modular air handling units,screw type refrigerant compressors, purchase specification on heating ventilating and air conditioning equipment for chemical plant.

参与起草的16项国家或行业标准是：gb/t 19411-2003《除湿机》、gb 19577-2004《冷水机组能效限定值及能源效率等级》、gb 19576-2004《单元式空气调节机能效限定值及能源效率等级》、jb/t 10538-2005《防爆除湿机及空调机》、gb/t 20738-2006《屋顶式空气调节机组》、gb/t 18430.1-2007《蒸气压缩循环冷水机组第1部分：工业或商业用及类似用途的冷水机组》、gb/t 17758《单元式空气调节机》、jb/t《空调变风量末端装置》、gb/t 21087-2007《空气-空气能量回收通风装置》、《建设工程产品质量标准核心条文》、gb/t 21363-2008《容积式制冷压缩冷凝机组》、gb/t 21362-2008《商用或工业用及类似用途的热泵热水机》、gb/t 14294《组合式空调机组》、gb/t 14296 《空气冷却器与空气加热器》、gb/t 19410《螺杆式制冷剂压缩机》、hg/t 20697-2007《化工暖通空调设备采购规定》。

In the high efficiency oil removal technology aspect, the theory study and application experiment of air sparged liquid-liquid hydrocyclone was carried out, enlightened by the air sparged solid-liquid hydrocyclone. Firstly, the strength and movement of dispersed phase was analyzed in theory, it was proved that the air bubble-oil drop polymer trend to move to the axes of hydrocyclone. Secondly, using CFD method, the characteristics of oil-air-water flow field were studied, including velocity distribution, pressure distribution, turbulent motion energy and its dissipation distribution. The characteristics and separation effect under different air injection methods were simulated. Thirdly, the separation ex-periment of air sparged liquid-liquid hydrocyclone was carried out at Lab. The major structure parameters of the hydrocyclone were optimized, the reasonable air injection method and performance parameters were determined through 4 groups of air injection experiments.

首先，对气携旋流场中分散相粒子的受力及运动进行了理论分析，证明了气泡与油滴形成的聚合体，更易于向轴心运动；其次，应用CFD方法，研究了油-气-水三相流场的速度分布、压力分布、湍动能及其耗散率分布特性，对不同注气方式的流场特性及分离效果进行了数值模拟；第三，开展了气携液-液旋流分离特性室内研究，优化了旋流器的主要结构参数，对四种注气方式的分离效率进行了对比，确定了合理的注气方式和操作参数；最后，在油田现场开展了处理聚驱采出污水工艺试验，确定了工艺运行参数，评价了处理效果。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。