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CN-224226731-U - Cavitation generator and cleaning and deoiling device

CN224226731UCN 224226731 UCN224226731 UCN 224226731UCN-224226731-U

Abstract

The utility model discloses a hydrodynamic cavitation generator and a cleaning and degreasing device, and relates to the field of hydrodynamic cavitation devices. The cavitation generator comprises a vortex cavity, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe, wherein the vortex cavity comprises a wall surface, an upper top surface and a lower bottom surface, an included angle A1 = 120-180 degrees between the wall surface and the wall surface of the lower bottom surface, the liquid outlet pipe is positioned at the center of the vortex cavity and comprises an inner diameter shrinkage section, an inner diameter diffusion section and an inner diameter invariable section along the liquid outlet direction, the plane of the central axis of the liquid inlet pipe is parallel to the plane of the central axis of the vortex cavity, the liquid inlet pipe comprises a pipe diameter reducing section and a pipe diameter invariable section along the liquid inlet direction, the central axis of the liquid inlet pipe and the central axis of the vortex cavity form a certain inclined angle, and the vortex cavity, the liquid inlet pipe and the liquid outlet pipe are of an integrated structure. The cavitation generator solves the problems of poor applicability and high cost of the existing cavitation generator, and develops cavitation generators with different specifications to meet different treatment capacity requirements.

Inventors

  • WEN LUHONG
  • CAI YUYAN
  • LIAO WENDA
  • CHEN YINGBIN

Assignees

  • 杭州路弘科技有限公司

Dates

Publication Date
20260512
Application Date
20250513

Claims (9)

  1. 1. A cavitation generator, comprising: The vortex cavity comprises a wall surface, an upper top surface and a lower bottom surface, wherein the included angle between the wall surface and the lower bottom surface is a wall surface included angle, and the wall surface included angle A1=120-180 degrees; The liquid outlet pipe is positioned at the center of the vortex cavity and comprises an inner diameter shrinkage section, an inner diameter diffusion section and an inner diameter unchanged section along the liquid outlet direction; The liquid inlet pipe is parallel to the plane of the central shaft of the liquid inlet pipe and the plane of the central shaft of the vortex cavity, and comprises a pipe diameter reducing section and a pipe diameter unchanged section along the liquid inlet direction; the distance between the upper top surface and the lower bottom surface of the vortex cavity is the height H of the vortex cavity, and the central axis of the liquid inlet pipe and the central axis of the vortex cavity form a certain inclination angle; the vortex cavity, the liquid inlet pipe and the liquid outlet pipe are of an integrated structure.
  2. 2. A cavitation generator according to claim 1, wherein the vortex chamber height h=10-30 mm, the diameter Dc of the upper top surface=30-50 mm, and the tilt angle a2=45-90 degrees.
  3. 3. The cavitation generator of claim 1, wherein the inner diameter dt=5-7 mm of the inlet of the liquid outlet pipe, and the inner diameter of the pipe diameter constant section of the liquid inlet pipe is the same as the inner diameter of the inlet of the liquid outlet pipe.
  4. 4. A cavitation generator according to claim 1 wherein the included angle a3=4-10 degrees of the inner diameter constriction section and the included angle a4=10-15 degrees of the inner diameter diffusion section.
  5. 5. A cavitation generator according to claim 1 wherein the wall angle a1=120 degrees.
  6. 6. A cavitation generator according to claim 2, wherein the vortex chamber height H = 25mm and the tilt angle a2 = 45 degrees.
  7. 7. A cavitation generator according to claim 1 wherein the inner diameter Dt of the outlet tube inlet increases by a factor and the vortex chamber height H, the diameter Dc of the upper top surface increases by the same factor to vary the flow rate of the cavitation generator.
  8. 8. A cleaning and degreasing device, characterized by being used for implementing the cavitation generator according to any one of claims 1 to 7, the cleaning and degreasing device comprises a booster pump, a positive pressure meter is arranged between the booster pump and the cavitation generator, a liquid outlet pipe of the cavitation generator is connected with a cleaning tank, and the booster pump is connected with the cleaning tank.
  9. 9. The cleaning and degreasing device according to claim 8, wherein the cleaning tank is provided with a cover plate, the cover plate is provided with an insertion hole, and the water inlet pipe and the water outlet pipe of the cavitation generator are inserted into the cover plate to clean the cleaning tank.

Description

Cavitation generator and cleaning and deoiling device Technical Field The utility model relates to the field of hydrodynamic cavitation devices, in particular to a cavitation generator and an application field thereof. Background The hydrodynamic cavitation generator is widely applied to the field of environmental protection and is used for treating sewage, degrading organic matters, sterilizing and the like, but the current hydrodynamic cavitation generator is large in size, and the current cavitation generator is high in manufacturing cost and is generally formed by processing metal materials and connecting the metal materials through fasteners, so that the manufacturing cost is high, and the price is high. How to develop a miniaturized cavitation generator is always the research direction of enterprises and research and development institutions. The current miniaturized cavitation generator mainly takes the venturi tube or pore plate configuration, and the venturi tube has the characteristics of simple structure, convenient operation, outstanding operation and maintenance economy and the like. However, under the high-intensity cavitation working condition, the shrinkage area is easy to generate a flow channel blocking phenomenon and is accompanied with cavitation damage risk, and the orifice plate generator generates cavitation effect through turbulence in the shear layer, so that a large pressure loss is inevitably caused, and part of energy is dispersed and consumed in the system. The conventional cavitation generator is inevitably cavitation damage to the wall surface of the overflow layout in the operation process, so that the service life of the cavitation generator is shortened. Cavitation is generated by the vortex diode through mechanical kinetic energy input or vortex flow field construction, the blockage defect of the traditional device is effectively avoided because the sectional area of a flow channel is not obviously limited to shrink, but the complicated three-dimensional flow field structure of the vortex diode leads to obvious increase of equipment manufacturing cost and maintenance difficulty, and the accurate regulation and control of cavitation intensity still has technical challenges. The vortex diode is designed based on the vortex principle, cavitation bubbles and an overcurrent component can be effectively prevented from being contacted, cavitation erosion is prevented from being damaged, durability and operation stability of the cavitation generator are remarkably improved, and the vortex diode still has defects in fine regulation and control of structural parameters and expansion of applicability. At present, the research of the vortex diode is still in the research stage of universities and scientific research institutions, and cannot be popularized and applied in actual production. The device for cleaning and deoiling in the current market generally adopts a heating mode to carry out demulsification and deoiling, on one hand, the heating is high in energy consumption, on the other hand, the heating cannot break out emulsified oil in liquid, the impurity oil in the cleaning liquid cannot be removed cleanly, so that the cleaning liquid cannot be recycled, the device also adopts an ultrasonic cavitation mode to carry out cleaning, the ultrasonic power is low, the cavitation effect is weak, intractable dirt is difficult to clean, and the long-term high-frequency vibration can cause the loosening of the structure of equipment or the damage of a transducer. Disclosure of Invention In order to meet the requirements of the cavitation generator in different application scenes, the cavitation generator provided by the utility model solves the problems of poor applicability and high cost of the existing cavitation generator, and develops cavitation generators with different specifications to meet different treatment capacity requirements. Based on the technical problems, the technical scheme of the utility model is as follows. A cavitation generator, comprising: The vortex cavity comprises a wall surface, an upper top surface and a lower bottom surface, wherein the included angle between the wall surface and the lower bottom surface is a wall surface included angle, and the wall surface included angle A1=120-180 degrees; The liquid outlet pipe is positioned at the center of the vortex cavity and comprises an inner diameter shrinkage section, an inner diameter diffusion section and an inner diameter unchanged section along the liquid outlet direction; the liquid inlet pipe is parallel to the plane where the central axis of the liquid inlet pipe is positioned and the plane where the central axis of the vortex cavity is positioned, and comprises a pipe diameter reducing section and a pipe diameter unchanged section along the liquid inlet direction; the distance between the upper top surface and the lower bottom surface of the vortex cavity is the height H of the vortex cavity, and the centra