Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of abrasive jet and generating device, applied in abrasive feeding device, used abrasive processing device, abrasive and other directions, can solve problems such as insufficient uniformity, potential safety hazards, sedimentation, etc., to enhance turbulent flow intensity and safety Enhanced, evenly mixed effect
Active Publication Date: 2018-10-02
WUHAN UNIV
View PDF14 Cites 15 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] However, because the mixing of the abrasive and water in the pre-mixed abrasive jet is carried out in the abrasive tank, the uniformity of the mixing of the abrasive and the water is not enough, and the concentration of the abrasive in the high-pressure abrasive jet is difficult to control
In addition, the abrasive particles in the abr
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0022] Example 1, such as figure 1 As shown, a pre-mixed abrasive jet generating device is mainly composed of a high-pressure pump 1, a solenoid valve, a jet pump 3, an abrasive box 4, an abrasive tank 5, a high-pressure nozzle 7, a cutter 11, an abrasive concentration sensor 12, a vibrating ball 9, Stirring ball 14, overflow valve 13, self-oscillating pulse nozzle 16, control computer 15 and water tank 17;
[0023] The high-pressure pump 1, solenoid valve 2A, jet pump 3 and high-pressure nozzle 7 are connected through a high-pressure pipeline to form a first branch, the abrasive box 4 is connected to the low-pressure inlet of the jet pump 3, and the high-pressure nozzle 7 is fixed on the abrasive Pot 5 top, and point to the center of abrasive pot 5;
[0024] The abrasive pot 5 is spherical and hollow inside. A vibrating ball 9 is fixed by two springs 6 at the center of the sphere in the cavity. The jet stream ejected from the high-pressure nozzle 7 just hits the vibrating ba...
Embodiment 2
[0029] Example 2, such as figure 2 As shown, the structure of this embodiment is the same as that of Embodiment 1, the difference is that an exhaust valve 8 is set at the top high point in the abrasive tank 5, and the working mode and principle of this embodiment are basically the same as that of Embodiment 1, the difference is that in Open the high-pressure nozzle 7 to fill the abrasive tank 5, open the exhaust valve 8 to exhaust, when the abrasive tank 5 is completely full, close the exhaust valve, and open the outlet and cutter to cut after the abrasive tank 5 reaches the set pressure. The embodiment uses the exhaust valve 8 to allow the abrasive tank 5 to be fully operated, which can effectively prevent the gas from entering the cutter through the outlet, causing water hammer to damage the outlet pipeline and the cutter.
[0030] As another preferred embodiment, the abrasive tank 5 is a pressure vessel, on which there are safety accessories for the pressure vessel, includ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a front mixed abrasive jet generating device. The front mixed abrasive jet generating device is composed of a high-pressure pump, electromagnetic valves, a jet pump, an abrasive box, an abrasive tank, a high-pressure nozzle, a cutter, an abrasive concentration sensor, a vibrating ball. a stirring ball, an overflow valve, a self-vibration pulse nozzle and a control computer;the high-pressure nozzle is fixed at the top end of the abrasive tank and points to the center of the abrasive tank; the vibrating ball is fixed at the center of the spherical abrasive tank through two springs, and the stirring ball with the larger water density is static at the bottom of the cavity; the self-vibration pulse nozzle is fixed on one side of the bottom of the abrasive tank and points to the stirring ball; an outlet is formed in the upper part of the abrasive tank and is connected with the cutter through a high-pressure pipeline, and the abrasive concentration sensor is arrangednearby the outlet; and the two electromagnetic valves and the abrasive concentration sensor are connected with a control computer through a data line. Compared with the prior art, the front mixed abrasive jet generating device has the advantage that the uniformity degree of mixing of abrasive and water can be remarkably increased, the concentration of the abrasive can be accurately controlled, andthe potential safety hazard caused by the settlement of the abrasive can be avoided.
Description
technical field [0001] The invention belongs to the technical field of abrasive water jet cutting, and relates to a pre-mixed water jet cutting device, in particular to a pre-mixed abrasive jet generating device. Background technique [0002] Abrasive water jet cutting technology has become a new technology that has developed rapidly in recent years because of its unparalleled cold cutting advantages and non-selectivity to cutting materials. According to the different mixing methods of abrasive and water, it can be divided into pre-mixing abrasive jet and post-mixing abrasive jet. Compared with the post-mixed abrasive jet, the abrasive and high-pressure water in the front-mixed abrasive jet are evenly mixed, the abrasive particles are accelerated sufficiently, and the energy transmission efficiency is high. Under the same working pressure, the cutting ability of the front mixed abrasive jet can reach 4 to 10 times that of the rear mixed abrasive jet. Therefore, the pre-mix...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more