CN109529738A - A kind of eddy flow cavitation apparatus - Google Patents
A kind of eddy flow cavitation apparatus Download PDFInfo
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- CN109529738A CN109529738A CN201811382550.9A CN201811382550A CN109529738A CN 109529738 A CN109529738 A CN 109529738A CN 201811382550 A CN201811382550 A CN 201811382550A CN 109529738 A CN109529738 A CN 109529738A
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- cavitation
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- eddy flow
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- 239000007921 spray Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 29
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000001133 acceleration Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
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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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Abstract
A kind of eddy flow cavitation apparatus, including spiral nozzle, accelerating cavity and cavitation field, spiral nozzle are linked together with accelerating cavity, and cavitation field is connect by fastener with swirl component.Spiral nozzle center is straightthrough port, and surrounding is uniformly arranged nine tilted slotted holes, and fluid enters accelerating cavity in the shape of a spiral after spiral nozzle, enters cavitation field after accelerated intracavitary abundant acceleration rotation.Three parts of the present invention are closely coupled, and structure is simple, and low energy consumption, the generation of cavitation bubble can be effectively facilitated, the contact for increasing cavitation bubble with incident screw fluid, makes full use of the shattered to pieces energy generated of cavitation bubble, has good effect especially for high density, highly viscous fluid.
Description
Technical field
The invention belongs to Hydrodynamic cavitation equipment technical fields, and in particular to a kind of eddy flow equipment of Hydrodynamic Cavitation, it is particularly suitable
In the processing of high density high viscosity fluid.
Background technique
Hydrodynamic cavitation effect refers to when fluid flows through a certain flow restriction zones, and due to the increase of flow velocity, local pressure is reduced,
When pressure is lower than the saturated vapour pressure of liquid, the bubble in liquid will overflow, can be adjoint with sharply crumbling and fall for cavitation bubble
Generate huge energy, part generates instantaneous high-temperature high pressure and microjet.The phenomenon is sent out on helical blade from last century
Existing, cavitation is just perplexed always the negative effect of hydraulic performance by people, while people are also striving to find utilization
The method of this huge energy.And now Hydrodynamic cavitation effect has been applied to every field, such as environmental protection, chemical industry, food neck
Domain, and there are many cavitation generating devices.
CN207102538U discloses a kind of Hydrodynamic cavitation generating device, including the internal ball-type cavity with spherical cavity
And multiple flow inlets, flow inlet are uniformly connected with ball-type cavity, and abacus is arranged in influent stream pipe, fluid generates gas through orifice plate
Bubble, collides with spherical cavity, further promotes crumbling and fall for cavitation bubble, in the cavity to increase cavitation intensity.
CN202983659U relates to a kind of convolution cavitation device, including influent stream pipe, the vortex chamber with conical internal cavity and goes out
Flow tube.Vortex chamber upper end has a tangential inlet, influent stream pipe with it is described it is tangential enter hole be connected to.It utilizes this special structure type
The liquid of high speed rotation flowing is formed, liquid center is low-pressure area, to facilitate the formation of cavitation, while changing using section
Change makes pressure rise, promotes crumbling and fall for cavitation bubble, realizes cavitation effect in lower energy consumption.
Although the research to Hydrodynamic Cavitation Technology is more and more, the field being related to is more and more wider, the structure type of cavitation device
Multiplicity, however the contact how to improve the quantity of cavitation bubble using simple structure and increase when cavitation bubble is crumbled and fall with liquid is water
Power cavitation apparatus needs the problem of facing.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of the prior art, provides that a kind of Operation and Maintenance is simple, low energy consumption, high throughput, height
The eddy flow cavitation apparatus of cavitation rate.
Technical scheme is as follows:
A kind of eddy flow cavitation apparatus, including spiral nozzle, accelerating cavity and cavitation field, it is characterised in that: band on spiral nozzle
There is the tilted slotted hole being integrated with straightthrough port, the interior accelerating cavity with helicla flute is connected to the tilted slotted hole, and cavitation field passes through fastener
It is connect with accelerating cavity.
Preferably, on the spiral nozzle tilt angle of tilted slotted hole between 8 °~15 °.
Preferably, the depth of the accelerating cavity inner spiral groove is between 1mm~2mm, and screw pitch is between 3mm~4mm.
Preferably, the hand of spiral of the accelerating cavity inner spiral groove is consistent with the tangential of spiral nozzle tilted slotted hole.
Preferably, the diameter of the straightthrough port is greater than the diameter of cavitation field throat.
Preferably, the cavitation apparatus that the cavitation field uses is selected from Laval nozzle cavitation apparatus, Venturi tube cavitation fills
One of set.
The cavitation process of the eddy flow cavitation generating device, comprising the following steps:
S1: fluid is after spiral nozzle, and under the action of tilted slotted hole, fluid is along inclined surface tangential flow, through nine
The liquid and straightthrough port of a tilted slotted hole outflow go out liquid convergence, and then form spiral flow；
S2: screw fluid is close to the flowing of accelerating cavity spiral inner wall, due to accelerating under the guiding function of accelerating cavity helicla flute
Chamber is pyramidal structure, and as fluid to smaller diameter end during flowing, flow section is smaller and smaller, the flowing speed of fluid
Degree is getting faster, and forms stable high-speed screw flowing, and it is the shape of cavitation bubble that the liquid center of high speed rotation flowing, which is low-pressure area,
At providing advantage；
S3: the liquid of high-speed screw flowing flows through the throat of cavitation field, and flow velocity further increases, pressure drop, cavitation bubble
Start a large amount of generations, with the expansion segment for entering cavitation field, sectional area becomes larger, and pressure is restored, and cavitation bubble takes place routed
It goes out, due to fluid high-speed helical flow, the fluid of the nearly wall section of expansion segment, spiral flow is not only only contacted when cavitation bubble is crumbled and fall
The liquid of body central area also can effectively be contacted with cavitation bubble.
The beneficial effects of the present invention are: by the design of the structure of tipper and helicla flute, the liquid at high speed flowed into is steady
Fixed rotation, since rotation center flow velocity is high, pressure is low, conducive to the generation of cavitation bubble.The achievable high density of the design of straightthrough port,
The high speed of the liquid such as high viscosity meets the needs of high throughput in industry by nonchoking nozzle, while fluid high speed forward
It is viscous in tube wall to effectively prevent high viscosity liquid for screw propulsion.To prevent liquid by straightthrough port directly through cavitation field, institute
The diameter for designing straightthrough port is greater than the diameter of cavitation field throat.Rotating fluid is at the flow restriction zones for flowing through cavitation field, flow velocity meeting
It further increases, pressure drop, the gas dissolved in a liquid can be released constantly, form a large amount of cavitation in low-pressure area
Bubble, while cavitation bubble can be ruptured in the pressure recovery region after throat, at this moment since liquid is rotational flow, the sky with rupture
Bubble contact is more abundant, contacts rather than just with the fluid at the wall surface of pressure recovery region, to improve cavitation efficiency.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the aperture schematic diagram of spiral nozzle；
Wherein: 1, spiral nozzle；2, accelerating cavity；3, cavitation field；4, straightthrough port；5, cavitation field throat.
Specific embodiment
Referring to shown in Fig. 1, Fig. 2, operational process of the invention are as follows: fluid is entered by spiral nozzle 1 under pressure,
Since straightthrough port 4 is connected with accelerating cavity 2, fluid can passing through with rapid, high volume, forming spiral flow after nine tilted slotted holes
It is dynamic, for prevent that the tilt angle of tilted slotted hole is too small and caused by fluid cannot form helical flow and tilt angle is excessive and cause
Fluid pass through with inclination excessive the obstructions fluid of face contact, therefore when angle is between 8 °~15 °, fluid can form effective spiral shell
Rotation movement, while skewed slot number of perforations is very few, when the efflux with straightthrough port converges, helical flow is unobvious, skewed slot number of perforations mistake
It is more, it will limit the size of tilted slotted hole, therefore select nine tilted slotted holes, to form stable spiral flow.
Since the hand of spiral of 2 helicla flute of tangential and accelerating cavity of tilted slotted hole is consistent, fluid is when flowing through accelerating cavity 2, meeting
It is close to the helicla flute flowing of accelerating cavity 2, and forms the spiral flow accelerated and enter cavitation field 3, to prevent 2 inside spin of accelerating cavity
Direct collision formation whirlpool and depth occur for the too deep and fluid with entrance of groove depth can not shallowly accelerate screw fluid excessively
Water conservancy diversion, therefore the depth of helicla flute is arranged between 1mm~2mm, while can not to prevent 2 inner spiral groove screw pitch of accelerating cavity excessive
It is too small and fluid is made directly to go out helicla flute that stable water conservancy diversion and screw pitch carried out to fluid, thus screw pitch setting 3mm~4mm it
Between.During passing through cavitation field throat 5, flow velocity increases the fluid of high-speed screw flowing, forms low pressure cavitation area, cavitation bubble
Largely generated rapidly in this region, with cavitation bubble after cavitation field throat 5 pressure recovery region it is broken, it is high-speed rotating
Fluid can make full use of the shattered to pieces energy generated of cavitation bubble.
Claims (6)
1. a kind of eddy flow cavitation apparatus, including spiral nozzle (1), accelerating cavity (2) and cavitation field (3), it is characterised in that: spiral spray
With the tilted slotted hole being integrated with straightthrough port (4) on head (1), the interior accelerating cavity (2) with helicla flute is connected to the tilted slotted hole, empty
Change field (3) to connect by fastener with accelerating cavity (2).
2. a kind of eddy flow cavitation apparatus according to claim 1, it is characterised in that: tilted slotted hole on the spiral nozzle (1)
Tilt angle between 8 °~15 °.
3. a kind of eddy flow cavitation apparatus according to claim 1, it is characterised in that: accelerating cavity (2) inner spiral groove
Depth is between 1mm~2mm, and screw pitch is between 3mm~4mm.
4. a kind of eddy flow cavitation apparatus according to claim 1, it is characterised in that: accelerating cavity (2) inner spiral groove
The hand of spiral is tangentially consistent with spiral nozzle (1) tilted slotted hole.
5. a kind of eddy flow cavitation apparatus according to claim 1, it is characterised in that: the diameter of the straightthrough port (4) is greater than
The diameter of cavitation field throat (5).
6. a kind of eddy flow cavitation apparatus according to claim 1, it is characterised in that: the cavitation that the cavitation field (3) uses
Device is selected from one of Laval nozzle cavitation apparatus, Venturi tube cavitation apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382550.9A CN109529738A (en) | 2018-11-19 | 2018-11-19 | A kind of eddy flow cavitation apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382550.9A CN109529738A (en) | 2018-11-19 | 2018-11-19 | A kind of eddy flow cavitation apparatus |
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| Publication Number | Publication Date |
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| CN109529738A true CN109529738A (en) | 2019-03-29 |
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| CN201811382550.9A Pending CN109529738A (en) | 2018-11-19 | 2018-11-19 | A kind of eddy flow cavitation apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109939989A (en) * | 2019-04-19 | 2019-06-28 | 徐州万达回转支承有限公司 | A kind of spiral cavitation washer and application method based on cavitation jet technology |
| CN110862159A (en) * | 2019-10-25 | 2020-03-06 | 仪征祥源动力供应有限公司 | Filtering component for closed circulating water system |
| CN110902756A (en) * | 2019-11-22 | 2020-03-24 | 江苏大学 | Sewage green treatment device |
| CN113250286A (en) * | 2020-02-13 | 2021-08-13 | 厦门松霖科技股份有限公司 | Intelligent closestool spray pipe and intelligent closestool |
| CN114307899A (en) * | 2021-12-30 | 2022-04-12 | 西南石油大学 | Rotational flow pulse cavitation device |
| CN114733424A (en) * | 2022-04-25 | 2022-07-12 | 西南石油大学 | A multi-stage accelerated swirl cavitation device |
| 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 |
| CN115977594A (en) * | 2022-12-26 | 2023-04-18 | 广州海洋地质调查局 | A Natural Gas Hydrate Cavitation Oscillating Stimulation Tool and Method |
| CN116750840A (en) * | 2023-08-23 | 2023-09-15 | 山东奥美环境股份有限公司 | Cavitation sewage treatment device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203737451U (en) * | 2014-01-16 | 2014-07-30 | 昆明理工大学 | Swirl nozzle with spiral groove |
| TWM506853U (en) * | 2015-05-25 | 2015-08-11 | Taiwan Kogres Co Ltd | Sound absorbing buffer cushion structure improvement |
| CN106762860A (en) * | 2016-12-21 | 2017-05-31 | 武汉大学 | A kind of fluid flow built-in stabilizers based on jet flow cavitation |
-
2018
- 2018-11-19 CN CN201811382550.9A patent/CN109529738A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203737451U (en) * | 2014-01-16 | 2014-07-30 | 昆明理工大学 | Swirl nozzle with spiral groove |
| TWM506853U (en) * | 2015-05-25 | 2015-08-11 | Taiwan Kogres Co Ltd | Sound absorbing buffer cushion structure improvement |
| CN106762860A (en) * | 2016-12-21 | 2017-05-31 | 武汉大学 | A kind of fluid flow built-in stabilizers based on jet flow cavitation |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109939989A (en) * | 2019-04-19 | 2019-06-28 | 徐州万达回转支承有限公司 | A kind of spiral cavitation washer and application method based on cavitation jet technology |
| CN110862159A (en) * | 2019-10-25 | 2020-03-06 | 仪征祥源动力供应有限公司 | Filtering component for closed circulating water system |
| CN110902756A (en) * | 2019-11-22 | 2020-03-24 | 江苏大学 | Sewage green treatment device |
| CN113250286A (en) * | 2020-02-13 | 2021-08-13 | 厦门松霖科技股份有限公司 | Intelligent closestool spray pipe and intelligent closestool |
| CN114307899A (en) * | 2021-12-30 | 2022-04-12 | 西南石油大学 | Rotational flow pulse cavitation device |
| CN114307899B (en) * | 2021-12-30 | 2023-05-26 | 西南石油大学 | Rotational flow pulse cavitation device |
| CN114733424A (en) * | 2022-04-25 | 2022-07-12 | 西南石油大学 | A multi-stage accelerated swirl cavitation device |
| 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 |
| CN115977594A (en) * | 2022-12-26 | 2023-04-18 | 广州海洋地质调查局 | A Natural Gas Hydrate Cavitation Oscillating Stimulation Tool and Method |
| CN116750840A (en) * | 2023-08-23 | 2023-09-15 | 山东奥美环境股份有限公司 | Cavitation sewage treatment device |
| CN116750840B (en) * | 2023-08-23 | 2023-11-21 | 山东奥美环境股份有限公司 | Cavitation sewage treatment device |
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Application publication date: 20190329 |