CN107198999A - A kind of Hydrodynamic cavitation generating means and Hydrodynamic cavitation method for generation - Google Patents
A kind of Hydrodynamic cavitation generating means and Hydrodynamic cavitation method for generation Download PDFInfo
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- CN107198999A CN107198999A CN201710576034.9A CN201710576034A CN107198999A CN 107198999 A CN107198999 A CN 107198999A CN 201710576034 A CN201710576034 A CN 201710576034A CN 107198999 A CN107198999 A CN 107198999A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 63
- 239000007788 liquid Substances 0.000 claims description 17
- 230000009467 reduction Effects 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000002309 gasification Methods 0.000 claims description 3
- 230000002706 hydrostatic effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 3
- 206010020843 Hyperthermia Diseases 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- -1 hydroxyl radical free radical Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910003158 γ-Al2O3 Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/02—Feed or outlet devices therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/024—Turbulent
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
Abstract
The invention discloses a kind of Hydrodynamic cavitation generating means and Hydrodynamic cavitation method for generation, device includes：One spherical cavity, inside has a spherical cavity；Multiple fluid inlet tubes, uniformly the lower half of spherical cavity is arranged on, and be connected with spherical cavity, its axis both passes through spherical cavity center, and it is identical with the angle of horizontal direction, abacus is all provided with fluid inlet tubes, fluid starts to produce bubble via orifice plate, when being injected into spherical cavity lower half, fluid convergence, mixing, collision, further promote cavitation bubble and crumble and fall the process lived again, so as to enhance cavitation intensity.Beneficial effects of the present invention：Flux is big, cavitation efficiency high.
Description
Technical field
The present invention relates to chemical industry fluid technique field, more particularly to a kind of Hydrodynamic cavitation generating means and Hydrodynamic cavitation hair
Generation method.
Background technology
When cavitation refers to that local pressure declines in liquid, the formation of gas cavities, hair on liquid internal or the solid interface of liquid
The process opened up and crumbled and fall.When fluid pressure is down to Liquid saturated vapor or even is following, produced due to the violent vaporization of liquid
Raw a large amount of cavitation bubbles.Cavitation bubble is with liquid flow board expansion, growth.When fluid pressure recovers, cavitation bubble moment crumbles and fall to form micro-
Jet and shock wave, produce moment localized hyperthermia (1000~5000K) and instantaneous pressure (1~5 × 107Pa).Cavitation can cause
Hydraulic mechanical equipment hydraulic performance decline, causes vibration, noise and cavitation erosion etc., but the energy of cavitation phenomenon release can also be subject to
Utilize, to realize the reinforcing to processes such as chemistry, physics, reach synergy, energy-conservation, consumption reduction and other effects.
The factor produced according to cavitation, is generally divided into acoustic cavitation, light cavitation, particle cavitation and the type of Hydrodynamic cavitation four.
The efficiency and the complexity of engineer applied produced due to cavitation, in four kinds of patterns, acoustic cavitation and Hydrodynamic cavitation be academia and
The focus of industrial quarters concern.At present, acoustic cavitation only obtains better effects in laboratory, but is applied to pilot scale or industrialization
When, it may appear that cavitation field is uneven, and cavitation efficiency declines, and flux is smaller, the problems such as amplification difficulty is larger.
For ultrasonic cavitation, Hydrodynamic cavitation equipment is simple, with low cost, can produce large-scale cavitation field, work
The potentiality of industryization application are very big, obtained in fields such as sterilizing, organic sewage wastewater treatment, jet flow cleaning and chemical separatings at present
To application.
Chinese patent 200410021098.5 discloses a kind of bactericidal unit that cavitation is produced by multi-hole orifice, utilizes sky
The instantaneous high-temperature high pressure produced when occurring is changed to carry out sterilization to liquid charging stock, the device has big yield, efficiency high, behaviour
The features such as making convenience, instantaneously sterilising, localized hyperthermia, integral normal temperature, thus avoid in liquid charging stock the destruction of active ingredient with
Cross thermal decomposition.Chinese patent 200410066214.5 discloses a kind of technical field of chemical separation convolution cavitation device that is used for can be
Relatively low temperature and be not added with or less plus under conditions of chemical demulsifier it is low to being carried out containing water-emulsified oil or emulsified oily watewater
Cost and efficient demulsification processing.Chinese patent 201120568210.2 discloses a kind of waterpower sky handled for stain disease
Makeup is put, and the device possesses multiple cavitation cavities, cavitation efficiency high.And ozone can be introduced to cavitation chamber, ozone is in Hydrodynamic cavitation
Under high-temperature and high-pressure conditions produced by effect, the hydroxyl radical free radical with more strong oxidizing property can be resolved into, is further increased
Cavitation efficiency.Catalyst TiO also can be set in the device2With γ-Al2O3, more hydroxyl radical free radicals are produced, further reinforcing
The removal effect of organic matter in stain disease.
Although the research to Hydrodynamic cavitation is gradually goed deep into, the cavitation device structure type proposed increases, Hydrodynamic cavitation
Cavitation intensity it is smaller, it is less efficient, be often not enough to play the triggering or invigoration effect of some physical-chemical reactions.In addition,
Cavitation reactor treating capacity is smaller, needs many table apparatus to be used in parallel or in series during extensive processing, causes processing system pipeline
Huge structure, complexity, are still difficult to industrial application.
The content of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide：
A kind of Hydrodynamic cavitation generating means, liquid flow flux is big, simple in construction, with low cost, reliable operation, suitable for industry
Change large-scale promotion application；
A kind of cavitation method for generation of the Hydrodynamic cavitation generating means, cavitation intensity is big, cavitation efficiency high.
To realize that the technical scheme that the purpose of the present invention is used is：
A kind of Hydrodynamic cavitation generating means, it is characterised in that：Including：
One spherical cavity, inside has a spherical cavity；
One cavitation-enhanced module, it is concentric to be arranged in spherical cavity；
Multiple fluid inlet tubes, are uniformly arranged on the bottom of spherical cavity, and are connected with spherical cavity, and its axis is equal
Through spherical cavity center, and with the angle all same of horizontal direction, be all provided with abacus in fluid inlet tubes；
One fluid outlet pipe, is connected with spherical cavity, the concentric surface for being arranged on spherical cavity.
It is preferred that, the cavitation-enhanced module is smooth surface shape, and sectional area gradually increases from bottom to top.
It is preferred that, the percent opening of the orifice plate is 20%-75%.
It is preferred that, the cavitation-enhanced modular shape is elliposoidal or wing.
It is preferred that, bonding or be welded on the inwall of fluid inlet tubes that the orifice plate is seamless.
It is preferred that, 0.5-1.2 times of a diameter of fluid issuing pipe diameter of the cavitation-enhanced module.
It is preferred that, the fluid inlet tubes are provided with two or three.
The Hydrodynamic cavitation method for generation of described Hydrodynamic cavitation generating means, comprises the following steps：
S1：Fluid enters in fluid inlet tubes, by orifice plate, due to the throttling action of orifice plate, flow velocity increase, hydrostatic pressure
Reduction, when pressure reaches the saturated vapor pressure of even below fluid at such a temperature, fluid starts gasification and produces bubble, dissolving
Gas in fluid is also separated out in the form of bubbles, and bubble gradually expands after producing, grown, and forms gas-liquid two-phase fluid；
S2：Gas-liquid two-phase fluid is injected into spherical cavity from orifice plate, in spherical cavity the latter half, fluid convergence,
Mixing, collision, by spherical cavity the latter half, when entering top half, are acted on cavitation-enhanced module, in its surface hair
Raw boundary layer departs from, and forms violent turbulance；
S3：Fluid enters after spherical cavity top half, and it is stable to obtain temporary buffer, along sphere flowing gradually taper up into
Enter fluid outlet pipe, increase therewith because runner shrinks flow velocity, static pressure reduction regenerates cavitation bubble；
S4：Fluid flows out from fluid outlet pipe.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, present device is simple in construction, and processing flux is big, and device fabrication is with low cost, cavitation efficiency high, it is adaptable to work
Industry large-scale application.
2nd, due to larger processing flux, the peace of parallel pipeline can be reduced using the water treatment system of the present apparatus
Dress, reduces the scale and complexity of pipe-line system, reduces floor space, reduces input cost.
3rd, can horizontal direction install and use, also can horizontal direction install and use.
Brief description of the drawings
Fig. 1 show the diagrammatic cross-section of the embodiment of the present invention.
Fig. 2 is the device schematic top plan view for the embodiment of the present invention.
In figure：1 is fluid inlet tubes, and 2 be orifice plate, and 3 be spherical cavity, and 4 be cavitation-enhanced module, 5 throat neck sections, and 6 is expand
Section is opened up, 7 be liquid outlet section.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1-2, a kind of Hydrodynamic cavitation generating means, including fluid inlet tubes 1, orifice plate 2, spherical cavity 3, cavitation
Strengthen module 4, fluid outlet pipe 5, (fluid inlet tubes 1 are provided with two, fluid inlet in Fig. 2 to multiple fluid inlet tubes 1 in Fig. 1
Pipe 1 is provided with three) it is connected with the latter half of spherical cavity 3, each inlet tube axis of fluid inlet tubes 1 both passes through spherical cavity 3
Center, and with the angled a of horizontal direction (a be 0 degree~80 degree), fluid inlet tubes 1 at least two are uniformly distributed spherical
The bottom of cavity 3.One piece is respectively mounted in each fluid inlet tubes 1 and opens foraminate orifice plate 2, and liquid can produce sky after orifice plate 2
Bubble.The fluid outlet pipe 5 is connected in surface with spherical cavity 3.Cavitation-enhanced module 4 is fixed on the center of spherical cavity 3.
Fluid enters in fluid inlet tubes 1, by orifice plate 2, due to the throttling action of orifice plate, flow velocity increase, hydrostatic pressure
Reduction, when pressure reaches the saturated vapor pressure of even below fluid at such a temperature, fluid starts gasification and produces bubble, dissolving
Gas in fluid is also separated out in the form of bubbles.Bubble gradually expands after producing, grown, and forms gas-liquid two-phase fluid.Gas-liquid
Two-phase fluid is injected into spherical cavity 3 from orifice plate 2.In the latter half of spherical cavity 3, fluid is converged, mixed, collision, together
When acted on cavitation-enhanced module 4, occurring boundary layer on its surface departs from, and forms violent turbulance.In this case it is a large amount of
Cavitation bubble, which is repeated continuously between the process crumble and fall, produce, growing, crumbling and fall, fluid, occurs strong collision, extruding and shearing work
With.Pressure oscillation caused by this phenomenon and concussion, which have, to be further promoted cavitation bubble and crumbles and fall the process lived again, so as to enhance
Cavitation intensity, improves cavitation efficiency.
Fluid enters after the top half of spherical cavity 3, obtains temporary buffer stable.Entrance is gradually tapered up along sphere flowing
Fluid outlet pipe 5, increases therewith because runner shrinks flow velocity, and static pressure reduction regenerates cavitation bubble.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of Hydrodynamic cavitation generating means, it is characterised in that：Including：
One spherical cavity (3), inside has a spherical cavity；
One cavitation-enhanced module (4), it is concentric to be arranged in spherical cavity (3)；
Multiple fluid inlet tubes (1), are uniformly arranged on the bottom of spherical cavity (3), and are connected with spherical cavity (3), its
Axis both passes through spherical cavity (3) center, and with the angle all same of horizontal direction, is all provided with abacus in fluid inlet tubes (1)
(2)；
One fluid outlet pipe (5), is connected with spherical cavity (3), the concentric surface for being arranged on spherical cavity (3).
2. a kind of Hydrodynamic cavitation generating means according to claim 1, it is characterised in that：The cavitation-enhanced module (4)
For smooth surface shape, sectional area gradually increases from bottom to top.
3. a kind of Hydrodynamic cavitation generating means according to claim 1, it is characterised in that：The percent opening of the orifice plate (2)
For 20%-75%.
4. a kind of Hydrodynamic cavitation generating means according to claim 1, it is characterised in that：The cavitation-enhanced module (4)
It is shaped as elliposoidal or wing.
5. a kind of Hydrodynamic cavitation generating means according to claim 1, it is characterised in that：The orifice plate (2) is seamless
On the inwall for being bonded or being welded on fluid inlet tubes (1).
6. a kind of Hydrodynamic cavitation generating means according to claim 1, it is characterised in that：The cavitation-enhanced module (4)
0.5-1.2 times of a diameter of fluid outlet pipe (5) diameter.
7. a kind of Hydrodynamic cavitation generating means according to claim 1, it is characterised in that：The fluid inlet tubes (1) set
There are two or three.
8. the Hydrodynamic cavitation method for generation of Hydrodynamic cavitation generating means as claimed in claim 1, it is characterised in that：Including following
Step：
S1：Fluid enters in fluid inlet tubes (1), by orifice plate (2), due to the throttling action of orifice plate, flow velocity increase, Hydrostatic
Pressure drop is low, and when pressure reaches the saturated vapor pressure of even below fluid at such a temperature, fluid starts gasification and produces bubble, molten
Gas of the solution in fluid is also separated out in the form of bubbles, and bubble gradually expands after producing, grown, and forms gas-liquid two-phase fluid；
S2：Gas-liquid two-phase fluid is injected into spherical cavity (3) from orifice plate (2), in spherical cavity (3) the latter half, fluid
Convergence, mixing, collision, by spherical cavity (3) the latter half, when entering top half, make with cavitation-enhanced module (4)
With, occur boundary layer on its surface and depart from, the violent turbulance of formation；
S3：Fluid enters after spherical cavity (3) top half, and it is stable to obtain temporary buffer, along sphere flowing gradually taper up into
Enter fluid outlet pipe (5), increase therewith because runner shrinks flow velocity, static pressure reduction regenerates cavitation bubble；S4：Fluid is from stream
Body outlet (5) flows out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710576034.9A CN107198999B (en) | 2017-07-14 | 2017-07-14 | Hydrodynamic cavitation generation device and hydrodynamic cavitation generation method |
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| CN201710576034.9A CN107198999B (en) | 2017-07-14 | 2017-07-14 | Hydrodynamic cavitation generation device and hydrodynamic cavitation generation method |
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| CN107198999B CN107198999B (en) | 2023-10-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371787A (en) * | 2021-06-24 | 2021-09-10 | 浙江工业大学 | Gas-driven cavitation system and method |
| CN114800060A (en) * | 2022-05-25 | 2022-07-29 | 广东技术师范大学 | Chemical magneto-rheological polishing device and method based on eddy current cavitation |
| CN117165363A (en) * | 2023-10-07 | 2023-12-05 | 迈安德集团有限公司 | Spherical crown shell cavitation disk and combined cavitator for oil dephosphorization and alkali refining and neutralization |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117165363A (en) * | 2023-10-07 | 2023-12-05 | 迈安德集团有限公司 | Spherical crown shell cavitation disk and combined cavitator for oil dephosphorization and alkali refining and neutralization |
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