This is necessary to avoid water hammer or shock damage.
这样做有必要以避免水锤或冲击损坏。
The water hammer pressure attenuates after the angle pipe.
经过弯管后水击压力有不同程度的衰减。
Excessive back pressure, freezing, or water hammer has distorted the second check.
过于严重的反压力、冰冻或水锤扭曲了第二止回阀。
In this paper, the concept of water hammer in heating network and its harm are expatiated.
本文阐述了管网水击的概念及其产生的原因及危害。
The harmfulness to the generator stability of water hammer effect is overcome by the GAHC.
水轮机的GAHC克服了水锤效应对稳定性的危害作用。
The water pressure is predicted according to the rigid water hammer or the elastic water hammer.
水压预测分别在刚性水锤及弹性锤两种情况下进行。
Then the theoretic calculation show that the atmosphere jar can decrease the water hammer pressure.
理论计算表明，空气罐能有效的减小水击压力。
The definition of water hammer is the force that is created when a liquid suddenly changes velocity.
水锤的定义是指当液体突然改变速度时会产生一个力的作用。
Quick closing valves, water hammer or supply pressure fluctuations can cause intermittent discharge.
迅速关闭阀门，水锤或供应压力波动可能导致间歇性排放。
The theoretical study was made of the effect of shut-in procedure on the water hammer pressure pulse.
关井水击压力的大小直接决定了现场是采用“软关井”还是“硬关井”方式关井。
This paper deals with the influence from the pressure of water hammer upon water power in transients.
本文对水电站暂态过程中水击压力的影响进行了探讨。
The research results provide theoretic guide for field application of air tank to water hammer control.
研究结果对现场使用空气罐来控制水击提供了理论指导。
Designed to close against the flow. Will not chatter or produce water hammer. Operates smoothly and quietly.
适用于关闭水流。不会出现振动或产生水锤。操作顺利宁静。
Water hammer forces can create extremely large pressure waves that can damage piping, piping gaskets and valves.
水锤会产生巨大的压力冲击波，破坏管道，垫圈和阀门。
It is indicated that the end valve-closure water hammer is the main problem which influencing the system safety.
对重力有压输水系统的水锤特点进行了分析，指出末端关阀水锤是影响系统安全运行的主要问题。
These results are references for reasonable design of piping, strength of pipe and the relieving of water hammer.
这些结果为合理设计输送管道、管道强度设计和消除水击现象提供了参考依据。
Meanwhile, the pressure regulating pool has multi-function of pressure, discharge regulating, and water hammer preventing.
同时调压池具有调节压力、流量及防水锤等功能。
The proposed reduced model gives a theory reference to the design to prevent the harm from water hammer pressure on pipes.
此简化模型可为设计过程中充分考虑水击对管道的影响提供理论依据。
The valve use medium pressure of its own, control and turn off with a delay function to eliminate or alleviate the water hammer.
利用介质自身的压力，控制并具有延时关闭功能，从而消除或缓解水锤的智能型止回阀。
Installing air surge tank in pressure water system is a new and economically efficient measure to prevent water hammer accident.
压力水系统中设置气压式调压室是防护水锤事故的、新的、经济有效的措施。
The protective measures against water hammer in hot-water heat-supply system are discussed from aspects of design and operation.
从设计和运行两方面探讨了热水供热系统的水击防护措施。
The ALC? is an in-line, spring assisted, single guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow.
同轴、管内螺纹弹簧单导对夹式止回阀，专门用于防止水击作用和倒流现象。
Surge chamber is a fairly reliable level pressure structure of reducing water hammer pressure and increasing surge system stability.
调压室是减小水击压力、提高调节系统稳定性的比较可靠的平压建筑物。
The time history of water hammer in pipeline in the condition of unit emergency load dump is calculated by characteristic line method.
在水电站机组丢弃负荷情况下，利用特征线法计算管道内的水击荷载时间历程。
A mathematical model of water hammer arrester with the lower open type in calculating the hydraulic transient in the pump systems is established.
建立了下开式水锤消除器在泵系统水力过渡过程计算中的数学模型。
Otherwise, such relief ( spitting) can occur when the second check is fouled during emergency backflow or resulting from a water hammer condition.
此外，在紧急回流或出现水锤现象时，如果第二止回阀受到污染，则这种安全阀可能出现释放（喷溅）。
A sensitivity predictive controller with memory recurrent network for use in the comprehensive control of the water hammer and the frequency is proposed.
提出一种对水轮发电机组水压频率进行综合调节的记忆递归网络灵敏度预测控制器。
It also has the ability of frost resistance, water hammer; resistance and overheat resistance. Small size and light weight make it easy install in any mode.
在低温环境中不怕冻、防水击、耐过热、体积小，重量轻，并且任何方式均可安装。
Through the numerical simulation to transient analysis in heating networks, it is consult value and guide significance for the water hammer protection measure.
通过数值模拟方法分析供热管网的瞬变流动工况，对研究供热管网的具体水锤防护措施有参考价值和指导意义。
Description and analysis on the Phenomenon, damage and Reason of the water Hammer for the Liquid Chemical Terminal, Submit the control and elimination measures.
对水锤现象的危害、原因进行了描述和分析。根据液体化工库产生水锤的特点，提出了控制和消除水锤的措施。
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