空气阀

南水北调中线工程PCCP及暗涵输水系统空气阀型式研究

Study on type of air valve for PCCP pipeline and buried culvert of water conveyance system for Mid-route of South-to-North Water Transfer Project

为达到理想的水锤防护效果，缓闭式空气阀应运而生。

For best protection result , non-slam air valve is exploited .

另外，L1系列空气阀提供速度和高度紧凑的设计流量。

The L1 Series air valves offer speed and high flow capacity in a compact design .

节流连杆和节流体空气阀的平稳操作。

Smooth operation of throttle linkage and throttle body air valve .

摩托车二次空气阀评价技术与标准

The Evaluation Method and Standard for Motorcycle Secondary Air Valve

提出了求解空气阀瞬变过程的新模型。

A new model is presented to solve the transients of air valves .

复合型空气阀防水锤的两阶段计算方法

Composite Type Air Valve Preventing Hammer Two-stage Calculation Method

空气阀水锤防护特性的主要影响参数分析及优化

Analysis and Optimization of Main Influencing Parameters for Water-hammer Prevention Characteristic of Air Valves

拆下溢流空气阀模块。

Remove the overrun air valve module .

二次空气阀在摩托车上的应用

Application of Secondary Air Valve on Motorcycle

松开左侧压力管上的软管卡箍并拆下整个溢流空气阀模块。

Undo the hose clamp on the left pressure pipe and remove the entire overrun air valve module .

南水北调中线大型输水系统空气阀性能与运行分析

Analysis on performance and operation of air valve for large-scale water conveyance system of Mid-route of South-to-North Water Transfer Project

实验室里用的汽灯；有一个空气阀可以控制可燃气和空气的密度。

A gas burner used in laboratories ; has an air valve to regulate the mixture of gas and air .

二次空气阀匹配过程中应注重高速高负荷的补气效果，同时应安装二次空气截止阀；

The effect of air supplement at high load should be paid attention to and a cut-off valve should be equipped ;

有很多从简单的手阀等各种阀到全自动控制天然气混空气阀。

There are different kinds of valves ranging from simple hand operated valve to fully automatic valve for control of gas-air mixture .

长管道泵系统中空气阀的水锤防护特性模拟

Research on characteristics of protection against water hammer of air valve in long water supply systems Prevention of Water Hammer in Pump Station

准确模拟空气阀运行特性，对整个供水工程的安全至关重要。

Accurate simulation of the air-inlet and air outlet process of air valve is directly relative to the safety of water supply engineering .

把空气阀安装在温水供给器时可综合处理各房间管路内的空气。

An overall air control for each pipe in each room is available by fitting an air valve at the hot water supply .

本文通过在有压输水管道系统安装空气阀对含气水锤防护进行了实验研究和数值计算。

In the literature , experimental research and numerical calculation have been performed on water hammer protection with gas in pressurized pipeline system with air valve installed .

空气阀是一种用于防止水锤过程中管线产生负压的水锤防护装置，具有构造简单、投资省、安装方便等优点，在调水工程中应用广泛。

Air valve is used to defend negative pressure . It is an economic and safe water hammer protection measure which has been widely used in projects .

计算结果表明，在特定条件下空气阀也能较好地抑制液柱分离的发生并有效地进行水锤防护。

The simulating results show that air valves may be used to suppress the occurrence of water column separation and to protect pumping systems effectively under certain special conditions .

提出了空气阀组概念，水锤分析表明，采用空气阀组和两阶段关闭蝶阀联合作用可有效地防护长距离加压输水工程中水锤危害。

The study shows that water hammer of long distance pressurized water transfer pipeline projects can be effectively protected by jointly using air valve set and a two-staged closing butterfly valve .

文中引用了事故后的试验资料，包括加装空气阀后的试验资料，对事故进行了仿真计算及与试验的对比计算。

The test data after the accident including that after installation of an additional air valve are quoted in this paper . Simulating computation of the accident is compared with the test data .

此外，给出了空气阀进排气孔口尺寸的计算公式和步骤，并结合应用实例进行分析，旨在帮助灌溉工程设计时正确选择进排气阀。

Also , combining with application example , a series of formulas and procedure for calculating the orifice size were provided in detail , which will be helpful to select and install the air valves properly .

作者注重科研成果标准化工作，牵头起草了我国第一部通机排放国家标准，以及另外两个关于摩托车催化器评价标准以及二次空气阀性能试验方法的标准。

Author also attached importance to standardization work root in study and research . Up to now , have drafted the first Chinese national standard for multipurpose utility engines emission control and other two standards for motorcycle catalytic converter and SAI evaluation test methods .

通过仿真计算，由前馈模型得到了用于燃气阀位置和空气阀位置控制的查询表，为电控单元的设计提供了基本控制参数。

The forward model is used to produce the practical querying table for controlling the opening position of the gas valve and the air valve by means of simulation calculation . This work is used to provide basic control parameters for designing electronic control unit .

AR空气调节阀用于多炉头系统，保持恒定的空气燃料比和混合气压力。

AR Air Regulators in multiple burner systems , hold constant air-fuel ratio and the mixture pressure with reducing burner port area of up to 90 % .

提速机车用JTY&1型空气减压阀

JTY & 1 Air Reduction Pressure Valve of Raising Speed Locomotive

摩托车二次空气补偿阀在高原地域的调整和应用

Adjusting and Application of Secondary Air Gulp Valve for Motorcycles in Highland

120型货车空气控制阀的研究试验

Research and Development of the Air Brake Control Valve for 120-type Freight Cars