Submerged pulse jet pulse parameter testing device and testing method

Abstract

The invention discloses a submerged pulse jet pulse parameter testing device which comprises a supporting frame, a base is installed on the supporting frame, a transparent cover is installed on the base, the other end of the transparent cover is provided with an end cover, and the top of the end cover is connected with an overflow pipe. A pore plate is mounted on the base, a plurality of through holes penetrating through the pore plate in the left-right direction are distributed in the pore plate, and a pitot tube is mounted in each through hole; a center hole is formed in the center of the base; a water spraying pipe is mounted in the center of the end cover, is connected with a water jet nozzle, extends out of the end cover and is connected with a high-pressure hose; and each pitot tube is provided with a pressure sensor and an exhaust electromagnetic valve. The invention further discloses a corresponding testing method. The exhaust electromagnetic valve is installed on the pitot tube, the exhaust electromagnetic valve is opened after the pore plate is submerged to exhaust the gas sealed by the water jet in the pitot tube, the inaccurate test result and the delay effect caused by a small amount of gas stored in the pitot tube are further avoided, and therefore the pulse jet pulse parameters are stably and accurately measured.

Description

Technical field [0001] The present invention relates to a water jet technique, in particular, to a pulsed radifier pulse parameter test technique. Background technique [0002] High-pressure water jet technology is a new technique that has developed in modern times, in view of its unique mechanical role, such as crushing, cutting, peeling effects and conveying effects, this technology has been widely used in industrial cleaning, surface in recent decades. Reflex, rock cutting, mine mining and oil and gas drill exploration and other engineering areas. Water jet can be divided into continuous jet and pulse jet. [0003] As a non-contiguous jet, the huge instantaneous energy generated by pulse jet hammer, better completion of cutting or crushing material, with high erosion effect and high working efficiency, wherein pulse peak pressure and pulse frequency It is a key parameter that affects pulse rolling erosion effects and work efficiency. [0004] In order to test the hitting force...

AI Technical Summary

Problems solved by technology

For example, the patent document CN20671006U discloses a transient impact pressure test device for water jets, which can obtain the instantaneous impact force at a certain moment under certain working conditions, but cannot continuously acquire data

[0005] The existing water jet impact test device can test the time-average impact force under a certain stable working pressure, but there are problems such as large attenuation of measurement data and inability to obtain high-frequency data. For the pulse peak pressure and pulse frequency of pulse jet (ie pulsating parameter in the name) is more pronounced

There is no teaching in the prior art to point out why the measurement is inaccurate

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