Largest exporter of electric hydraulic pressure p

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Electrohydraulic pulse jet calculation of the maximum outlet pressure

Average speed, if the set t, the Pistons tied the plasma expansion velocity of V is V: {v,. The average plasma piston acceleration ac Yi ≯, shad (4) discharge from the discharge channel (two electrodes) for the energy released from the plasma piston expansion (to overcome the inertia of the water) and compressed water, so The force is Pcp: Mwacp + fec mouth Ew (5) where M, Y one by one to bear the role of plasma piston water quality, ± one by one expansion of the plasma piston surface area, ec one by one the average deformation of the pressure wave value, Ew elastic modulus of water. ÷ co an Ⅲ t = (6) pc. One by one, the average density of the pressure wave. Taking into account the ec,. {Testis} - stupid, c. = √ Lu, {§ carp No. 4 electrohydraulic pulse aunt shot Tibetan maximum outlet pressure of the calculation of \have Pcp = 2tVC p port port port C (7) can be seen in other in vitro expansion of the surface of the piston all the pressure back on the 'p.: BC) is in direct proportion to their arrest, that Pcp = 20p. C port = vpp port Co (8) a large number of studies have shown that the discharge end of the energy stored in capacitor w (W. = {CV, c the capacitance of a capacitor, V for a discharge voltage), in addition to the Pistons for the expansion of the plasma Xing and w Water compression w. outside the body also result in cross flow, the kinetic energy of w, namely: Wp + Wc ten Wt = qW I (9) one by one discharge circuit the overall efficiency of the energy release depends on the plasma piston w-body. integrable V and its internal pressure P discharge end of the MW .= Island v = {ppfR1 = hi t take into account the Vc = c / (2p. c.) and p = 2p so it wz din ho (10) w, by the water the degree and quality of movement Qu decided that w / = Mwv / 2 (11) will be substituted into the @ type @ type and taking into account v = 2VCPcp (C port of a VCp) = dCot, VCI = Pc / (2p Port C.) then have to w production -: was wild p: pcp * tj4ple. 2p60 (12) As such thin hand body clean plug mill pus business generated pressure wave, the pressure wave to the speed of sound to the surrounding expansion, set its period is T {flat surface C by the pressure per unit area crossing the energy EK. According to the literature [2] Ez = P / (2p. co) (13) if the first single-cycle at t. when the width to form, that is, T = 2 'plan indeed Wc = PTf / (2Poco) = P. 2t / (P. C.) considering p = 2Pc may therefore Wc = 4Ptpf / (port oco) (14) to @ @ @ substituted into ⑨ style by finishing after that = { i √ Man (15> = 2PC ~ = √ ≮ (16) strip at the outlet c = 10. kg / m. C port = 1500m / S so \(17), as w port is known. so long as the discharge time t can be calculated that the discharge of any interior point (including nozzle mouth) at an average pressure and maximum pressure curve. For convenience, Figure 2 shows asked different discharge relationship within the Pmax and 1c (take = 0.1) pour 3 shows the Pmax and the relationship between R and q. calculations assume room filled with water discharge, this sad error with mining, but also On the one hand while the general were in the design of the discharge chamber used its poly B effect, it will increase to the point (eg nozzle H) seam pressure. But practice has proved that the above formula or Pm8x & p is acceptable before it can be processed parts to prevent damage. Finally, in the calculation must be made that the pressure or high pressure water jet Pcp total 4 Pm were put capacitor (including the nozzle port) pressure, if the workpiece on the nozzle at Department, this pressure is the pressure acting on the workpiece, a workpiece with a certain distance from the nozzle to jet the same as normal water, attenuation due to the pressure of its value increases due to radiation from the corresponding decrease. References l, Liao turnings side \Figure I, in a closed container RK plasma expansion process of the piston of a discharge chamber radius, t. Rc a discharge time of a pressure wave front crossing the radius, R a radius of the plasma at t, R, v, a one bang expansion, respectively, the radius of the plasma, velocity and acceleration of a figure three, the release of energy not the same relationship with R and n2-curve II, at different discharge gate of t, when, Pmax and release energy w. The curve (11 = lo%, R10cm)
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