CN108708708B - Hydrodynamic cavitation device for separating oil sand - Google Patents
Hydrodynamic cavitation device for separating oil sand Download PDFInfo
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- CN108708708B CN108708708B CN201810458928.2A CN201810458928A CN108708708B CN 108708708 B CN108708708 B CN 108708708B CN 201810458928 A CN201810458928 A CN 201810458928A CN 108708708 B CN108708708 B CN 108708708B
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- 239000003027 oil sand Substances 0.000 title claims abstract description 45
- 238000000926 separation method Methods 0.000 claims abstract description 20
- 230000008602 contraction Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000010008 shearing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 14
- 239000003921 oil Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000000411 inducer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000000197 pyrolysis Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000002608 ionic liquid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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Abstract
The invention relates to the technical field of oil sand separation devices, in particular to a hydrodynamic cavitation device for separating oil sand, which comprises a main body, wherein a flow channel for bearing oil sand mixed liquid is arranged in the main body, the flow channel comprises an inlet section, a contraction section and an outlet section which are sequentially connected, the contraction section is gradually and obliquely transited from the inlet section to the outlet section, a first nozzle and a second nozzle for jetting high-pressure jet flow are sequentially arranged on the flow channel along the direction from the inlet section to the outlet section, the first nozzle is positioned at the rear side of the flow channel, the second nozzle is positioned at the front side of the flow channel, the direction of jetting the high-pressure jet flow by the first nozzle and the direction of jetting the high-pressure jet flow by the second nozzle are both crossed with the axial direction of the inlet section, the main flow in the flow channel generates a vortex and a shear layer by skillfully utilizing the combination of the first nozzle and the second nozzle, thereby realizing the generation of a large-range cavitation area in the flow channel and greatly improving the peeling efficiency of an oil film, and the device is simple, portable, compact in structure, small in occupied space and low in manufacturing and maintenance cost.
Description
Technical Field
The invention relates to the technical field of oil sand separation devices, in particular to a hydrodynamic cavitation device for separating oil sand.
Background
Currently, the conventional original exploration and development in the world reaches a peak. The production yield thereof will be reduced, in which case unconventional petroleum such as heavy oil, oil sands, and bitumen, etc. will become one of the important energy sources. Because the oil sand can be exploited in 6510 billion barrels in the world, the oil sand is increasingly valued and the exploitation scale is larger and larger. Although the amount of recoverable resources in oil sands is large, the cost of recovery is high compared to traditional petroleum energy.
The oil sand separation technology is mainly divided into two main types of water-containing systems and non-water systems, wherein the water-containing systems, namely the operation process, have water participation and comprise hot alkaline water washing technology, ultrasonic separation technology, aqueous solution method separation technology and the like, and the non-water systems comprise solvent extraction technology, ionic liquid extraction technology and pyrolysis and dry distillation technology. The water-containing system has the problems of large water consumption, water resource waste, waste water treatment, environmental pollution and the like. Various separation technologies have great problems, and the solvent extraction technology has the problems of large solvent consumption, solvent loss, environmental pollution and the like; wherein, the pyrolysis and dry distillation technology is a catalytic cracking process; the ionic liquid extraction technology has the problems of large ionic liquid consumption, difficult recovery, high cost and the like; the pyrolysis and dry distillation technology has high energy consumption, high equipment requirement and large investment. In summary, the existing oil sand separation technology has many defects, and the development of an oil sand separation technology which can completely recover a non-aqueous system and a medicament at low temperature or normal temperature is urgently needed.
The hydrodynamic cavitation technology is taken as a research direction which is more and more emphasized by scholars at home and abroad, and the application range of cavitation is more and more extensive. When cavitation occurs, the bubble can be broken to generate instantaneous high temperature and high pressure (the temperature can reach 500K, the pressure can reach 50MPa), and an instantaneous high-speed jet phenomenon (the speed can reach 100m/s) occurs. The extreme phenomena can effectively promote the separation of oil sand, and meanwhile, the hydrodynamic cavitation has low energy consumption and simple operation. It follows that the application of cavitation techniques to the separation of oil sands is a worthwhile direction.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the defects of the oil sand separation technology in the prior art, the hydrodynamic cavitation device for separating the oil sand is provided, and the device generates a cavitation area in a main flow through high-pressure jet, so that an oil film of solid particles on the oil sand is peeled off, and the effect of solid-liquid separation is achieved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a separation hydrodynamic cavitation device for oil sand, includes the main part, have the runner that is used for bearing oil sand mixed liquid in the main part, the runner is including the inducer that connects gradually, shrink section and export section, the width of inducer is greater than the width of export section, the shrink section is followed the inducer and is leaned gradually to transition to export section, along inducer to the direction of export section on the runner set gradually and be used for spraying high pressure jet's first nozzle and second nozzle, first nozzle is located the rear side of runner, and the second nozzle is located the front side of runner, first nozzle sprays high pressure jet's direction and the axis direction intercrossing of second nozzle injection high pressure jet's direction all with the inducer.
Furthermore, the cross section of the inlet section is a flat hexagon, the hexagon is formed by enclosing a first edge, a second edge, a third edge, a fourth edge, a fifth edge and a sixth edge in sequence, the first edge and the fourth edge are opposite to each other and have the same length, the second edge, the third edge, the fifth edge and the sixth edge have the same length, an included angle between the second edge and the sixth edge and an included angle between the third edge and the fifth edge are both 15-20 degrees, the side of the inlet section where the first edge of the cross section is located is the rear side of the flow channel, the side of the inlet section where the fourth edge of the cross section is located is the front side of the flow channel, because the high-pressure jet flows sprayed by the first nozzle and the second nozzle are radial, the cross section of the inlet section is a flat hexagon, the shapes of the front half part and the rear half part of the inlet section are exactly consistent with the shapes of the radial high-pressure jet flows sprayed by the nozzles, a confining pressure environment can be formed for the sprayed high-pressure jet flows, further reducing the attenuation of the high-pressure jet velocity and being beneficial to the generation of cavitation.
Further, the cross section of the outlet section is circular.
Further, the cross-sectional area of the inlet section is equal to the cross-sectional area of the outlet section.
Further, the distance between the first nozzle and the second nozzle in the axial direction of the inlet section is 50-100 mm, and the distance between the second nozzle and the contraction section in the axial direction of the inlet section is
27～87mm。
Further, the direction of the high-pressure jet sprayed by the first nozzle and the direction of the high-pressure jet sprayed by the second nozzle are both perpendicular to the axial direction of the inlet section.
Furthermore, a first connecting flange is arranged at one end, away from the contraction section, of the inlet section, and a second connecting flange is arranged at one end, away from the contraction section, of the outlet section.
The invention has the beneficial effects that: the hydrodynamic cavitation device for separating oil sand skillfully utilizes the combination of the first nozzle and the second nozzle to enable the main flow in the flow channel to generate a vortex and a shear layer, thereby realizing the generation of a large-range cavitation area in the flow channel and greatly improving the peeling efficiency of an oil film, and the hydrodynamic cavitation device has the advantages of simple and portable equipment, compact structure, small occupied space and low manufacturing and maintenance cost;
in addition, the method is different from the traditional oil sand separation method, does not need any chemical reagent, and does not need to consider the problem of waste liquid treatment after treatment; meanwhile, the method does not need extremely high energy consumption, and only needs to provide certain water pressure, so that the oil-sand separation cost is greatly reduced to a certain extent.
And the invention separates the high-speed cavitation jet from the mixed flow containing oil sand, thereby avoiding the abrasion of the high-speed solid particles to the nozzle.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a three-dimensional schematic diagram of a hydrodynamic cavitation apparatus for separating oil sands in accordance with the present invention;
FIG. 2 is a schematic cross-sectional view of the hydrodynamic cavitation apparatus for separating oil sands of the present invention;
FIG. 3 is a schematic diagram of a hydrodynamic cavitation device for separating oil sands in accordance with the present invention;
FIG. 4 is a schematic cross-sectional view of an inducer of the hydro-cavitation device for separating oil sands of the present invention;
fig. 5 is a schematic cross-sectional view of an outlet section in a hydraulic cavitation apparatus for separating oil sands according to the present invention.
In the figure: 1. a main body 1-1, a flow passage 1-11, an inlet section 1-111, a first side 1-112, a second side 1-113, a third side 1-114, a fourth side 1-115, a fifth side 1-116, and a sixth side;
1-12 parts of a contraction section, 1-13 parts of an outlet section, 2 parts of a first nozzle, 3 parts of a second nozzle, 4 parts of a first connecting flange, 5 parts of a second connecting flange.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1 to 5, a hydrodynamic cavitation device for separating oil sand includes a main body 1, a flow channel 1-1 for carrying oil sand mixed liquid is provided in the main body 1, the flow channel 1-1 includes an inlet section 1-11, a contraction section 1-12 and an outlet section 1-13 which are connected in sequence, the width of the inlet section 1-11 is greater than that of the outlet section 1-13, the contraction section 1-12 is gradually and obliquely transited from the inlet section 1-11 to the outlet section 1-13, a first nozzle 2 and a second nozzle 3 for spraying high-pressure jet are sequentially provided on the flow channel 1-1 along the direction from the inlet section 1-11 to the outlet section 1-13, the first nozzle 2 is located at the rear side of the flow channel 1-1, the second nozzle 3 is located at the front side of the flow channel 1-1, and both the direction of the first nozzle 2 spraying high-pressure jet and the direction of the second nozzle 3 spraying high-pressure jet are equal to the direction of the second nozzle 3 spraying high-pressure jet The axial directions of the inlet sections 1-11 cross each other.
As shown in fig. 4, the cross section of the inlet section 1-11 is a flat hexagon, the hexagon is formed by enclosing a first side 1-111, a second side 1-112, a third side 1-113, a fourth side 1-114, a fifth side 1-115 and a sixth side 1-116 in sequence, the first side 1-111 and the fourth side 1-114 are opposite to each other and have the same length, the second side 1-112, the third side 1-113, the fifth side 1-115 and the sixth side 1-116 have the same length, the included angle between the second side 1-112 and the sixth side 1-116 and the included angle between the third side 1-113 and the fifth side 1-115 are both 15 degrees to 20 degrees, the side of the inlet section 1-11 where the first side 1-111 is located on the cross section is the rear side of the runner 1-1, the side of the inlet section 1-11, which is located at the fourth edge 1-114 of the cross section of the inlet section 1-11, is the front side of the flow channel 1-1, and because the high-pressure jet flow sprayed by the first nozzle 2 and the second nozzle 3 are radial, the cross section of the inlet section 1-11 is in a flat hexagon shape, the shapes of the front half part and the rear half part of the inlet section are just consistent with the shapes of the radial high-pressure jet flow sprayed by the nozzles, a confining pressure environment can be formed for the sprayed high-pressure jet flow, further the attenuation of the speed of the high-pressure jet flow is reduced, and the generation of cavitation is facilitated.
As shown in fig. 5, the outlet sections 1-13 are circular in cross-section.
The cross-sectional area of the inlet section 1-11 is equal to the cross-sectional area of the outlet section 1-13.
The distance between the first nozzle 2 and the second nozzle 3 in the axial direction of the inlet section 1-11 is 50-100 mm, and the distance between the second nozzle 3 and the contraction section 1-12 in the axial direction of the inlet section 1-11 is 27-87 mm.
The direction of the high-pressure jet sprayed by the first nozzle 2 and the direction of the high-pressure jet sprayed by the second nozzle 3 are both perpendicular to the axial direction of the inlet section 1-11.
The end of the inlet section 1-11 far away from the contraction section 1-12 is provided with a first connecting flange 4, and the end of the outlet section 1-13 far away from the contraction section 1-12 is provided with a second connecting flange 5.
The mainstream that lets in this embodiment 1-1 is the mixed liquid that the oil sand was handled through smashing, adding water stirring, and the high pressure jet that first nozzle 2 and second nozzle 3 jetted all is high-pressure rivers, and this separation oil sand is mainly responsible for the spalling of oil film on the solid particle in the oil sand with the hydrodynamic cavitation device, reaches solid-liquid separation's effect.
When in specific implementation, firstly, water flow without oil sand is introduced from an inlet section 1-11 of the flow passage 1-1, then water flow with higher pressure is introduced into the first nozzle 2 and the second nozzle 3, and the state is continued for a period of time, so that cavitation is generated in the flow passage 1-1 of the main body 1;
after the cavitation phenomenon is generated, introducing a main flow containing oil sand into an inlet section 1-11 of the flow channel 1-1, wherein the main flow containing oil sand is fully contacted with a cavitation-generated area in the flow channel 1-1, so that the effect of stripping an oil film from solid particles is achieved;
the oil sand mixed liquor treated by the cavitation device is then discharged from the outlet section 1-13, and the discharged liquor is subsequently subjected to further separation treatment.
As shown in FIG. 3, the operation principle of the hydrodynamic cavitation device for separating oil sand of the present invention is as follows:
the main flow containing oil sand flows in from the inlet section 1-11 of the flow channel 1-1, when the main flow flows to the first nozzle 2, the high-pressure jet sprayed by the first nozzle 2 is influenced by the main flow, and the high-pressure jet sprayed by the first nozzle 2 is gradually changed from flowing in a direction perpendicular to the main flow to flowing in a direction along the main flow, so that the main flow positioned between the high-pressure jet sprayed by the first nozzle 2 and the inner wall of the rear side of the flow channel 1-1 forms a first vortex, and a low-pressure area is formed in the center of the first vortex, so that the center of the first vortex can generate a larger degree of cavitation, the cavitation degree of the edge of the first vortex is smaller, and the effect on the oil sand is limited due to the smaller cavitation range at the position;
when the main flow flows through the second nozzle 3, the main flow influenced by the high-pressure jet ejected by the first nozzle 2 is obliquely deflected to the rear side of the flow channel 1-1 under the influence of the high-pressure jet ejected by the second nozzle 3, and the high-pressure jet ejected by the second nozzle 3 is also gradually changed to be deflected to the rear side of the flow channel 1-1 from the direction vertical to the axis of the flow channel 1-1 under the influence of the main flow, obviously, the main flow collides with the inner walls of the inlet section 1-11 and the contraction section 1-12 to form impact, so that the range of a cavitation area of the first vortex is limited; meanwhile, a main flow positioned between the high-pressure jet ejected by the second nozzle 3 and the front side inner wall of the flow channel 1-1 forms a second vortex, and because the high-pressure jet ejected by the second nozzle 3 has a higher speed, and the main flow positioned between the high-pressure jet ejected by the second nozzle 3 and the front side inner wall of the flow channel 1-1 has a lower speed, a shear layer will exist between high-speed fluid and low-speed fluid, and the shear layer will also generate cavitation phenomenon, and the main flow will generate a large-scale cavitation region at the position between the high-pressure jet ejected by the second nozzle 3 and the front side inner wall of the flow channel 1-1 by combining the functions of the second vortex and the shear layer, and the confluence large-area ground formed by the main flow and the high-pressure jet of the second nozzle 3 contacts with the cavitation region, so as to be beneficial to the collapse of bubbles in the cavitation region and generate physical effects of shock waves, high jet intensity such as micro jet, thereby peeling off the oil film and further playing a role in separating the oil sand, and the partial cavitation area plays a main role in separating the oil sand;
due to the arrangement of the first nozzle, a certain angle can be formed between the confluence formed by the high-pressure jet of the first nozzle 2, the high-pressure jet of the second nozzle 3 and the main stream and the outlet section 1-13 of the flow channel 1-1, so that a third vortex is formed at the rear side of the outlet section 1-13 close to the flow channel 1-1, and a cavitation area formed by the third vortex and the second nozzle 3 can form a clamping and forcing condition for the confluence, so that the contact surface of the confluence and cavitation areas is increased, and the cavitation separation effect is enhanced.
The closed space formed by the high-pressure jet of the first nozzle 2 is small, so that the high-pressure jet of the first nozzle 2 can drive the fluid in the small space to form a first vortex, the high flow speed at the edge of the first vortex is high, and a large speed gradient cannot be formed with the high-pressure jet of the first nozzle 2, namely, a shear layer cannot be formed at the high-pressure jet of the first nozzle 2; and the closed space formed by the high-pressure jet flow at the second nozzle 3 is large and long and narrow, and cannot form the vortex of the whole closed area, only a small second vortex can be formed, the flow velocity of the rest of the high-pressure jet flow area close to the second nozzle 3 and the high-pressure jet flow of the second nozzle 3 form a large velocity gradient to form a shear layer, cavitation bubbles in the shear layer can be diffused to the inner wall of the front side of the flow channel 1-1, and meanwhile, the high-pressure jet flow can also wrap the bubbles to flow downstream, so that a large-range cavitation area is formed.
In addition, the high-pressure jet ejected by the first nozzle 2 and the second nozzle 3 easily forms a similar closed environment with the inner wall of the convergent section 1-12 due to the existence of the convergent section 1-12, and the flow velocity of the main flow in the closed environment is too small relative to the flow velocity of the high-pressure jet, so that a vortex and a shear layer are easily formed.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The utility model provides a separation hydrodynamic cavitation device for oil sand which characterized in that: the device comprises a main body (1), a flow channel (1-1) for bearing oil sand mixed liquid is arranged in the main body (1), the flow channel (1-1) comprises an inlet section (1-11), a contraction section (1-12) and an outlet section (1-13) which are sequentially connected, the width of the inlet section (1-11) is larger than that of the outlet section (1-13), the contraction section (1-12) is gradually and obliquely transited to the outlet section (1-13) from the inlet section (1-11), a first nozzle (2) and a second nozzle (3) for jetting high-pressure jet flow are sequentially arranged on the flow channel (1-1) along the direction from the inlet section (1-11) to the outlet section (1-13), the first nozzle (2) is positioned on the rear side of the flow channel (1-1), and the second nozzle (3) is positioned on the front side of the flow channel (1-1), the direction of the high-pressure jet sprayed by the first nozzle (2) and the direction of the high-pressure jet sprayed by the second nozzle (3) are mutually crossed with the axial direction of the inlet section (1-11);
the first nozzle (2) and the second nozzle (3) are arranged, when a main flow containing oil sand flows through the first nozzle (2), a first vortex is formed by the main flow at a position between a high-pressure jet ejected by the first nozzle (2) and the inner wall of the rear side of the flow channel (1-1), a second vortex and a shearing layer are formed by the main flow influenced by the high-pressure jet ejected by the first nozzle (2) when the main flow flows through the second nozzle (3), and a third vortex is formed at the rear side of the outlet section (1-13) close to the flow channel (1-1).
2. The hydrodynamic cavitation device for separating oil sand according to claim 1, characterized in that: the cross section of the inlet section (1-11) is a flat hexagon, the hexagon is formed by sequentially enclosing a first side (1-111), a second side (1-112), a third side (1-113), a fourth side (1-114), a fifth side (1-115) and a sixth side (1-116), the first side (1-111) and the fourth side (1-114) are opposite to each other and have the same length, the second side (1-112), the third side (1-113), the fifth side (1-115) and the sixth side (1-116) have the same length, and the included angle between the second side (1-112) and the sixth side (1-116) and the included angle between the third side (1-113) and the fifth side (1-115) are both 15-20 degrees.
3. The hydrodynamic cavitation device for separating oil sand according to claim 2, characterized in that: the cross section of the outlet section (1-13) is circular.
4. The hydrodynamic cavitation device for separating oil sand according to claim 3, characterized in that: the cross-sectional area of the inlet section (1-11) is equal to the cross-sectional area of the outlet section (1-13).
5. The hydrodynamic cavitation device for separating oil sand according to claim 1, characterized in that: the distance between the first nozzle (2) and the second nozzle (3) in the axial direction of the inlet section (1-11) is 50-100 mm, and the distance between the second nozzle (3) and the contraction section (1-12) in the axial direction of the inlet section (1-11) is 27-87 mm.
6. The hydrodynamic cavitation device for separating oil sand according to claim 1, characterized in that: the direction of the high-pressure jet sprayed by the first nozzle (2) and the direction of the high-pressure jet sprayed by the second nozzle (3) are both perpendicular to the axial direction of the inlet section (1-11).
7. The hydrodynamic cavitation device for separating oil sand according to claim 1, characterized in that: one end of the inlet section (1-11) far away from the contraction section (1-12) is provided with a first connecting flange (4), and one end of the outlet section (1-13) far away from the contraction section (1-12) is provided with a second connecting flange (5).
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| SU1063469A1 (en) * | 1982-06-04 | 1983-12-30 | Казахский Научно-Исследовательский Институт Водного Хозяйства | Hydraulic cyclone |
| CN102531146A (en) * | 2011-11-23 | 2012-07-04 | 深圳市宇力科技有限公司 | Device for degrading waste water organic matters by combined type hydraulic power cavitation |
| CN104384122A (en) * | 2014-09-19 | 2015-03-04 | 哈尔滨工程大学 | Structure for cleaning cavitation device by utilizing hyperventilation cavitating jet |
| CN105505445A (en) * | 2014-09-24 | 2016-04-20 | 中国石油大学(北京) | Hydrodynamic cavitation apparatus and hydrodynamic cavitation system for heavy oil modification |
| CN206570344U (en) * | 2017-01-23 | 2017-10-20 | 广西科技大学 | The device of percussion flow Hydrodynamic cavitation intensified cane juice clarification |
| CN107986388A (en) * | 2017-12-30 | 2018-05-04 | 中国科学院声学研究所 | A kind of water treatment facilities, system and method for treating water |
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