A Gradual Fluidization Adaptive Horizontal Ultra-High Pressure Abrasive Jet Generating Device

Abstract

Disclosed is a horizontal ultra-high pressure pre-mixed abrasive jet generating apparatus, comprising a stationary / mobile dual-mode vehicle (1), and further comprising a horizontal low-pressure grit tank (2), a horizontal self-adaptive grit slurry fluidising tank (3) and a horizontal ultra-high pressure tank (4), wherein an end seat (21) is mounted at a left end of the horizontal low-pressure grit tank (2), a water injection pipeline (211) is mounted at an upper end of the end seat (21), a normally open two-position valve (212) is mounted at a right end of the end seat (21), a special valve (5) is mounted between the horizontal low-pressure grit tank (2) and the horizontal self-adaptive grit slurry fluidising tank (3), and a cyclone device (53) is mounted at a right end of the special valve (5). The horizontal ultra-high pressure pre-mixed abrasive jet generating apparatus can avoid the use of a large-diameter high-pressure tank and an upright, high centre of gravity, high-pressure tank, and can further prevent the problem of accumulation of abrasives on the lower side of the horizontal low-pressure grit tank under their own gravitational force, realising the dual functions of helical precise conveyance and regulated output of grit slurry.

Description

technical field [0001] The invention relates to the technical field of abrasive water jet mechanical equipment design, in particular to a gradual fluidization self-adaptive horizontal ultra-high pressure abrasive jet generating device. Background technique [0002] The water jet is a high-speed water stream of different shapes formed by the nozzle, and the flow rate of the jet depends on the pressure drop before and after the nozzle outlet section. Water jetting is the simplest form of energy transformation and application. Usually, the power-driven pump completes a suction and discharge process of water, pumps a certain amount of water to the high-pressure pipeline, and makes it reach the nozzle with a certain amount of energy. The hole diameter of the nozzle is required to be much smaller than that of the high-pressure pipeline, so this certain amount of water reaching the nozzle must be accelerated if it wants to flow out of the nozzle hole. In this way, the water that ...

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Problems solved by technology

At present, the capacity of the abrasive tank of the pre-mixed abrasive jet equipment is small, suitable for vertical arrangement, and has a portable function. With the development of the development, the working time of the former mixed abrasive equipment is extended, the capacity of the abrasive tank is increased, and the characteristics of the abrasive tank will be developed from the characteristics of "high and thin" to the characteristics of "short and thick". It is not convenient to arrange the abrasive tank in a vertical way. , which will lose the advantages of portable water jets, especially domestic abrasive tanks cannot manufacture ultra-high pressure tanks due to material problems, and some domestic research institutions often use volumetric tanks with small diameters and long lengths to solve the high pressure problem. With the continuous deepening of the research on the materials of abrasive tanks by China's research institutions, the material of ultra-high pressure abrasive tanks that can meet commercial use will be researched later. However, there are still a series of problems in the mixed abrasive jet generation equipment before ultra-high pressure. Now Some ultra-high-pressure pre-mixed abrasive jet generation equipment can neither avoid the problems caused by the high-pressure tanks being unable to manufacture large-diameter volume bearing high-pressure containers due to material problems, nor can they solve the problems caused by the axial length of vertical large-volume ultra-high pressure abrasive tanks. The center of gravity is too high to cause problems such as instability; some ultra-high pressure pre-mixed abrasive jet generating equipment cannot realize the horizontal transportation of abrasives in the horizontal low-pressure sand tank, and it is also impossible to avoid the abrasives being brought to the lower side of the horizontal low-pressure sand tank due to their own gravity. Abrasive accumulation problem; some ultra-high pressure pre-mixed abrasive jet generating equipment cannot realize the dual functions of spiral precision conveying and throttling output mortar, and cannot accurately control the concentration of mortar; However, it cannot fully mix the mortar in the horizontal self-adaptive mortar fluidization tank, and it cannot avoid the instability of the mortar concentration caused by the mixing of the mortar in the booster valve. The fluctuation range of the mortar output concentration is very large

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