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    管道疏通高压水射流清洗技术
    2016-11-22 17:11:30
    高压水射流清洗装置一般由泵、高压软管组件、控制阀和清洗喷嘴等部件组成。 高压水射流清洗是由高压泵产生高压水源,并使液流通过喷嘴,形成高速射流进行清洗的技术。高压水射流冲击物体初期,也就是射流束与结垢物表面接触最初的几微秒内,水射流的冲蚀效果最好。
    High pressure water jet cleaning device is generally composed of pump, high pressure hose assembly, control valve and cleaning nozzle and other components. High pressure water jet cleaning is a high pressure water source generated by high pressure pump, and the liquid flow through the nozzle, the formation of high speed jet cleaning technology. High pressure water jet impact object is the early jet and the scale of the initial contact surface within a few microseconds, the best effect of water jet erosion.
    水以极高的速度冲击固体表面,这种冲击和炸药在物体表面爆炸现象十分相似,这种破坏主要发生在脆性物体内。水的冲击速度越大,产生的破坏也就越大,因为冲击速度大,应力脉动作用时间长,裂纹有充分的时间扩展和发育。水射流对固体表面的破坏不仅是正向的冲击作用,而且有切向的冲蚀作用。
    Water at a high rate of impact on the solid surface, the impact of explosives and explosives on the surface of the object is very similar, this damage occurs mainly in the fragile objects. The greater the impact velocity of water, the greater the damage, because the impact speed is large, the stress pulse action time is long, the crack has full time expansion and development. The destruction of water jet on the solid surface is not only a positive impact, but also a tangential erosion.
    射流射向固体壁后转化为切向流,这种高速切向流挟带着被剥离下来的物质颗粒一起冲刷新露出的结垢表面,提高了清洗效果。此外,固体表面有裂隙时,射流能产生水楔作用,扩大裂缝,加速裂隙的发展,有助于垢层的剥离,提高除垢效果,从而达到清洗破碎目的
    The jet at the solid wall into tangential flow of particles, this high-speed cutting stripped down to flow with the rush refresh scaling the exposed surface, improve the cleaning effect. In addition, the solid surface has cracks, the jet can produce water wedge effect, expand the cracks, accelerate fracture development, peel helps the fouling layer, improve the descaling effect, so as to achieve the purpose of cleaning broken
    高压水射流一般采用高压柱塞泵来形成高速射流,柴油机作为泵的能量源。喷嘴包括:圆柱形喷嘴、锥形喷嘴、扇形喷嘴、流线形喷嘴等,喷嘴的选择要根据清洗对象的性质和清洗要求来决定。高压水射流的清洗参数包括:压力和流量的选择、高压胶管管径与长度、喷嘴的形状和尺寸的选择以及横移速度、靶距和射流冲击角等,合理选择这些参数以及优化它们的组合是提高水射流清洗效率,降低能耗的重要手段之一。
    High pressure water jet generally uses high pressure piston pump to form high speed jet, diesel engine is the energy source of pump. The nozzle comprises a cylindrical nozzle, a conical nozzle, a fan shaped nozzle, a streamline nozzle, etc., and the choice of the nozzle is determined according to the property of the cleaning object and the requirement of cleaning. High pressure water jet cleaning parameters include: pressure and flow, high pressure hose diameter and length, nozzle shape and size as well as the choice of horizontal speed and target distance and jet impingement angle, reasonable selection of these parameters and the optimization of their combination is to improve the efficiency of water jet cleaning, one of the important means of reducing energy consumption.
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    Article source: Ji'nan pipeline dredge more content please enter: http://www.sggdst.com our official website.