其特征在于所述的自净喷嘴由可与压力水管对接并留有进水孔道及喷口的喷嘴体构成。
The utility model is characterized in that the nozzle includes a water channel butted with a penstock and a nozzle body of a nozzle.
水的压力使水管爆裂了。
水管中水的压力可以比喻成电势，或者说可以与电势相提并论?。
The pressure in water in the pipe may be compared to the electric potential.
但是，密苏里州Insituform技术公司新推出的InsituMain管道内衬可以承受较高的管内压力，因而可以被用来修复饮用水水管。
But Missouri-based Insituform Technologies’s new InsituMain liner can withstand the internal forces of pressurized pipe, allowing in-place repair of drinking-water mains.
水原的水在大气压力（或水压）的作用下通过管网压到了进水管内。
Suwon in atmospheric pressure of water (or water) through the pipe network under pressure to the water pipes into the inside.
循环水泵的进水管和出水管上也应装压力表。
Circulating water pump inlet pipe and outlet pipe should also install pressure gauge.
高层建筑消防给水系统安全阀的定压值通常根据系统工作压力按经验法计算，但这种方法仅适用于安全阀设置在消防水泵出口压水管上的情形。
The calculation of constant pressure values for relief valves in the fire suppression systems of high-rise buildings usually is based on the working pressure of pipe systems by experience.
许多研究成果表明，影响水轮机水力稳定性有多种因素，其中一个重要因素是尾水管内水流的压力脉动。
Many study results showed that pressure fluctuation in draft tubes is one of the most important factors that affects the stability of turbines.
助压水罐巧妙的利用自来水管网自身的压力，对水罐内存空气压缩，形成巨大的势能，在冲洗时产生强劲射流。
The pressure assist tank make use of service pipe net self's pressure cleverly, to compress the air accumulated in the tank, formatting gigantic potential energy.
通过与模型试验结果进行比较可以看出，本计算能够比较准确地预测尾水管内的压力脉动。
The comparison between the calculation results and experimental data indicates that the calculation in this paper can medict the pressure fluctuation in draft tube very well.
现有的公共污水管网沿着地块的南面，这部分系统是压力系统。
The existing public network for waste water drainage is along south side of the plot and the system is pressurized.
由于各种原因产生的高频和低频的压力脉动会使尾水管内部产生严重的空蚀破坏或者诱发水轮机叶片产生振动等问题。
Pressure fluctuations with high or low frequency can lead to acute cavitation damage in draft tubes or vibration of the vane of turbine.
对水轮机模型，测取了从直锥段进口至尾水管出口8个截面共26个测点在6个稳定运行工况下的水压力脉动数据。
In the experimental study, the pressure surge data are acquired at 26 points from the taper pipe intake to the draft tube exit distributing at 8 sections under 6 stable operating conditions.
为了保持相同的热水和冷水压力，这个装置应该安装在整个室内住宅的供水管道上。
This should be placed on the supply to the entire house in order to maintain equal hot and cold water pressures.
目前给水管网普遍存在供水压力不均、管网漏损量大、爆管事故频繁、供水水质不达标等题目。
At present, widespread network of pipes to the uneven water pressure, large pipeline leakage, burst pipes have been frequent incidents, water quality standards are not issues, and so on.
增大调压室面积会明显改变尾水管最小压力值。
Enlarging the sectional area of surge tank obviously changes minimum pressure in draft tube.
基于有限元法，分析了两个尾水管在各自最大内水压力条件下外围混凝土的受力，得到各自的应力变化规律和特点。
Stress of surrounding concrete of each draft tube is analysed by the finite-element method under condition of the highest hydraulic pressure and the variable regularity of stress is obtained.
混流式水轮机尾水管内螺旋形涡带引起的压力脉动是造成混流式水轮机组振动的主要根源之一，严重威胁机组的安全运行。
For Francis turbines, the pressure pulsation in draft-tubes induced by helical vortex rope is one of the main problems and it would seriously affect the safe operation of the unit.
水管路系统流体压力脉动及其引起的流噪声会降低管路系统自身工作的可靠性和舰船的隐蔽性。
The fluid pressure pulse and flow-noise in water piping system decreased the operation safety of piping system and hiding ability of submarines.
如改变尾水管形状，可以消除涡带压力脉动，减小机组振动。
If the shape of tailrace pipe is changed, the pressure pulse can be removed so that the vibration of generating unit can be reduced.
详细分析了尾水管进口截面的压力脉动的幅值和相位，并对尾水管内的流动做了分析。
Amplitude and phase of pressure fluctuation at the inlet of draft tube as well as the inner flow in draft tube are analyzed in detail.
这个滚动草坪洒水器很棒的地方就是，在橡胶水管上它通过利用水的压力来推动自身尽最大可能的浇灌您的花园。
What's cool about this rolling lawn sprinkler is that it harnesses the power of water pressure to propel itself forth on the garden hose and get about the business of watering your garden.
介绍了玻璃钢供水管道现场压力试验的试验条件，试验工艺及试验方法，供同行参考。
This paper introduces the experiment condition of pressure experiment for water supplying pipeline of glass steel, experiment technology and method.
分析了流体动态特性实验台架本身的自循环特性对海水管路系统中脉动压力测量的影响。
This paper analyzes the influence of the test device cycling characteristic for fluid dynamic characteristic on the pulsation pressure measurement in seawater pipeline system.
该部分从城镇消防用水量标准、消防给水管道管径和压力、市政消防栓的布置等几个方面分析研究消防供水的问题。
This part researches and analyses the municipal fire consumption, pipe diameter and pressure of fire water supply pipes, space between municipal hydrants and other problems of fire water supply.
通过水压力脉动数据的FFT频谱分析，研究了直锥段和尾水管内部在不同位置不同工况下的压力脉动在时域及频域上的变化规律。
With the FFT analysis it is analyzed that the pressure surge changing laws in the taper pipe and draft tube in time domain and frequency domain.
数值模拟得到的尾水管中压力脉动的频率，与湖北中试所在隔河岩进行测试的结果基本一致。
The pressure fluctuation in the draft tube is obtained. The calculated pressure fluctuation frequency agrees with the test data.
文中给出了油、气、水管网系统的水力、热力参数，包括流量、含水率、压力、温度、比热等的计算方法。
A method of calculating hydraulic and thermodynamic parameters such as flow, ratio of water in oil, pressure, temperature, specific heat for oil, gas, water pipe net is presented.
简述了聚乙烯材料作为压力管道的优势，以及聚乙烯给水管道及管道材料在国内外的生产现状及发展趋势。
This paper briefly introduced the advantages of PE materials for pressure pipes and the present status of production and development trend of PE pipes for water supply at home and abroad.
简述了聚乙烯材料作为压力管道的优势，以及聚乙烯给水管道及管道材料在国内外的生产现状及发展趋势。
This paper briefly introduced the advantages of PE materials for pressure pipes and the present status of production and development trend of PE pipes for water supply at home and abroad.
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