CN207108561U - A kind of single impeller rotary vane Hydrodynamic cavitation generating means - Google Patents

A kind of single impeller rotary vane Hydrodynamic cavitation generating means Download PDF

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CN207108561U
CN207108561U CN201720941519.9U CN201720941519U CN207108561U CN 207108561 U CN207108561 U CN 207108561U CN 201720941519 U CN201720941519 U CN 201720941519U CN 207108561 U CN207108561 U CN 207108561U
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generating means
rotary vane
liquid
casing
hydrodynamic cavitation
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魏世超
张凯
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Research Institute of Physical and Chemical Engineering of Nuclear Industry
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Research Institute of Physical and Chemical Engineering of Nuclear Industry
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Abstract

The utility model discloses a kind of single impeller rotary vane Hydrodynamic cavitation generating means, including casing and cavitation mechanism, the casing is used to accommodate liquid, its front side bottom sets liquid-inlet, rear side top sets liquid outlet, and described liquid-inlet and liquid outlet are separately positioned on the cornerwise both ends of casing；The cavitation mechanism, including a rotating shaft and an impeller, the rotating shaft, are installed on center in casing, and both ends are run through former and later two sides of casing, driven by external motor；The impeller, is coaxially installed in rotating shaft, is made up of multiple blades, and the through hole run through is evenly equipped with the blade.The utility model has the advantages that energy consumption is low, cavitation efficiency high.

Description

A kind of single impeller rotary vane Hydrodynamic cavitation generating means
Technical field
Chemical industry fluid technique field is the utility model is related to, more particularly to a kind of single impeller rotary vane Hydrodynamic cavitation Generating means.
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 be down to Liquid saturated vapor even it is following when, 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 crumble and fall to be formed it is 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, cause 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 according to caused by cavitation, it is generally divided into acoustic cavitation, light cavitation, particle cavitation and the type of Hydrodynamic cavitation four. Due to efficiency caused by cavitation and the complexity of engineer applied, 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 the problems such as cavitation field is uneven, and cavitation efficiency declines, and flux is smaller, and amplification difficulty is larger.
For ultrasonic cavitation, Hydrodynamic cavitation equipment is simple, cost is cheap, can produce large-scale cavitation field, work The potentiality of industryization application are very big, obtained in the field such as sterilizing, organic sewage wastewater treatment, jet flow cleaning and chemical separating at present To application.
Chinese patent 200410021098.5 discloses a kind of bactericidal unit that cavitation is produced by multi-hole orifice, utilizes sky Instantaneous high-temperature high pressure caused by 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, so as to 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 it is not added with either low to being carried out containing water-emulsified oil or emulsified oily watewater less plus under conditions of chemical demulsifier Cost and efficient demulsification processing.It is empty that Chinese patent 201120568210.2 discloses a kind of waterpower for stain disease processing 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 caused by effect, the hydroxyl radical free radical with more strong oxidizing property can be resolved into, is further increased Cavitation efficiency.Also settable catalyst TiO in the device2With γ Al2O3, more hydroxyl radical free radicals are produced, are further strengthened dirty The removal effect of useless Organic substance in water.
Gradually deeply, although the cavitation device structure type proposed increases the research to Hydrodynamic cavitation, 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 more table apparatus to be used in parallel or in series during processing on a large scale, causes processing system pipeline Huge structure, complexity, are still difficult to industrial application.
Utility model content
The purpose of this utility model is to be directed to technological deficiency present in prior art, and provides a kind of single impeller revolution leaf Chip Hydrodynamic cavitation generating means.
Technical scheme is used by realize the purpose of this utility model：
A kind of single impeller rotary vane Hydrodynamic cavitation generating means, including：
Casing, for accommodating liquid, its front side bottom sets liquid-inlet, and rear side top sets liquid outlet, described Liquid-inlet and liquid outlet be separately positioned on the cornerwise both ends of casing；
Cavitation mechanism, including,
One rotating shaft, is installed on center in casing, and both ends are run through former and later two sides of casing, driven by external motor It is dynamic；
One impeller, is coaxially installed in rotating shaft, is made up of multiple blades, and the through hole run through is evenly equipped with the blade.
Preferably, the number of the blade is no less than three.
Preferably, the through hole is uniformly distributed on blade, and spread pattern is equilateral triangle, corner equilateral triangle, pros Shape or corner square.
Preferably, the both ends of the through hole are provided with expanding structure.
Preferably, the blade is that tabular is curved.
Preferably, reaming angle is 10 °~50 °.
Preferably, the liquid-inlet and the liquid outlet are pipe, and diameter parallel.
Preferably, the rotating shaft and liquid-inlet and liquid outlet diameter parallel.
Preferably, the casing is cavity rectangular parallelepiped structure, and the blade height is the 0.2-0.4 of box height, described Width of blade is the 0.6-0.9 of box width.
Preferably, the casing be cavity cylinder, the width of blade be cylinder width 0.6-0.9, the leaf Piece is highly the 0.2-0.4 of cylinder diameter.
Preferably, the blade is rectangle structure.
The Hydrodynamic cavitation process of the single impeller rotary vane Hydrodynamic cavitation generating means, comprises the following steps：
(1) liquid enters casing from inlet flow；
(2) relative motion between blade and liquid, through hole are cut to liquid；
(3) liquid at high speed is diminished by through hole, cross section of fluid channel product, and water velocity increase, water flow pressure reduces, and pressure is down to Below the saturated vapor pressure of water, cavitation occurs and forms vacuole, then vacuole comes back to liquid master as current flow out through hole Body, hydraulic pressure rise, bubble collapse, shock wave and microjet are formed along with the moment of bubble collapse, produces HTHP；
(4) liquid flows out casing from liquid outlet.
In the step (2), during liquid flow via through holes, the reaming of porch is first passed through, current is reduced and is collided with orifice plate and led The energy loss of cause, by the reaming in exit when flowing out through hole, bubble collapse is more abundant.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model device is simple in construction, and processing flux is big, and equipment manufacturing costs are cheap, cavitation efficiency high, is applicable In industrialization 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, the scale and complexity of pipe-line system are reduced, reduce floor space, reduce input cost.
3rd, various ways are throttled and sheared using through hole and induce cavitation, can produce substantial amounts of vacuole cloud, vacuole is transported Property it is strong, and energy consumption is low, cavitation efficiency high, and liquid flow flux is big, can large-scale promotion use.
4th, the Hydrodynamic cavitation generating means can be by controlling flow and wheel speed to control extent of cavitation, can be according to reality Demand obtains different degrees of cavitation effect, substantially increases the controllability of the equipment of Hydrodynamic Cavitation.
Brief description of the drawings
Fig. 1 show cavitation apparatus schematic diagram.
Fig. 2 show cavitation apparatus schematic elevation view.
Fig. 3 show vane profile figure.
Fig. 4 show impeller elevation cross-sectional view.
Fig. 5 show impeller side and regards part sectioned view.
Fig. 6 show arrays of openings schematic diagram.
Wherein：Wherein：1- liquid-inlets, 2- casings, 3- impellers, 4- rotating shafts, 5- liquid outlets, 6- through holes.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
A kind of single impeller rotary vane Hydrodynamic cavitation generating means, including：
Casing 2, for accommodating liquid, its front side bottom sets liquid-inlet 1, and rear side top sets liquid outlet 5, institute The liquid-inlet 1 and liquid outlet 5 stated are separately positioned on 2 cornerwise both ends of casing；
Cavitation mechanism, including, a rotating shaft 4 is installed on center in casing 2, and former and later two sides of casing 2 are run through at both ends Face, driven by external motor；One impeller 3, is coaxially installed in rotating shaft 4, can be rotated coaxially with rotating shaft 4, by multiple blade structures Into being evenly equipped with the through hole run through on the blade.
Being sealed between rotating shaft 4 and casing 2, be full of liquid to be treated in casing 2, impeller 3 is located in hydraulically full casing 2, External motor drive shaft 4 and impeller 3 high-speed rotation altogether, while rotation, liquid is driven from the inflow device of import 1 by impeller 3 And rotate therewith flowing.
Relative motion be present between blade 7 and liquid, liquid is cut by through hole 6.The both ends of through hole 6 set reaming Structure, so when versus high motion between blade 7 and liquid, liquid at high speed is diminished by through hole 6, cross section of fluid channel product, current Speed increase, water flow pressure reduce, and when pressure is down to below the saturated vapor pressure of water, generation cavitation forms vacuole, then vacuole As current outflow through hole 6 comes back to main body of liquid, hydraulic pressure rise, bubble collapse, formed along with the moment of bubble collapse Shock wave and microjet, produce HTHP.
When liquid handling amount is larger, the disposal ability of equipment can be improved by increasing the size of casing 2.
Preferred scheme, the number of the blade are no less than three, and the blade is that tabular is curved.Certain In the range of, blade setting is more, and cavitation effect is also better.Liquid is under the cutting repeatedly of multiple blades 7 of impeller 3, constantly By through hole 6, cavitation effect repeatedly occurs.
Preferred scheme, if casing is cavity rectangular parallelepiped structure, the blade height is the 0.2-0.4 of box height, The width of blade is the 0.6-0.9 of box width.If the casing is cavity cylinder, the width of blade is that cylinder is wide The 0.6-0.9 of degree, the blade height are the 0.2-0.4 of cylinder diameter.In this interval range, Hydrodynamic cavitation effect is most It is good.The casing of cavity cylinder is more excellent without dead angle, cavitation effect.
Preferred scheme, the through hole are uniformly distributed on blade, and spread pattern is equilateral triangle, corner positive triangle Shape, square or corner square, these arrangement modes can all realize good cavitation.The both ends of the through hole are provided with reaming knot Structure.Reaming angle is 10 °~50 °.In the porch of through hole 6 because of reaming, reduce current and damaged with energy caused by orifice plate collision Lose；Reaming is set in the outlet in hole, makes bubble collapse more abundant, the cavitation effect of the cavitation plate with expanding structure is more preferable, Cavitation intensity is higher, cavitation efficiency is also higher.
Preferred scheme, the liquid-inlet 1 and the liquid outlet 5 are pipe, and diameter parallel, described turn Axle 4 and liquid-inlet 1 and the diameter parallel of liquid outlet 5.The mode be arrangeding in parallel, it may be such that the more unobstructed inflow of liquid or stream Go out casing 2.
On the other hand, the Hydrodynamic cavitation process of the rotary vane Hydrodynamic cavitation generating means of single impeller 3, including it is following Step：
(1) liquid enters casing 2 from inlet flow；
(2) relative motion between blade and liquid, through hole are cut to liquid；
(3) liquid at high speed is diminished by through hole, cross section of fluid channel product, and water velocity increase, water flow pressure reduces, and pressure is down to Below the saturated vapor pressure of water, cavitation occurs and forms vacuole, then vacuole comes back to main body of liquid as current flow out through hole, Hydraulic pressure raises, bubble collapse, forms shock wave and microjet along with the moment of bubble collapse, produces HTHP；
(4) liquid flows out casing 2 from liquid outlet 5.
Preferred scheme, in the step (2), during liquid flow via through holes, the reaming of porch is first passed through, reduces current Energy loss caused by being collided with orifice plate, by the reaming in exit when flowing out through hole, bubble collapse is more abundant.
Described above is only preferred embodiment of the present utility model, it is noted that for the general of the art For logical technical staff, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these change Enter and retouch and also should be regarded as the scope of protection of the utility model.

Claims (11)

  1. A kind of 1. single impeller rotary vane Hydrodynamic cavitation generating means, it is characterised in that including：
    Casing, for accommodating liquid, its front side bottom sets liquid-inlet, and rear side top sets liquid outlet, described liquid Body import and liquid outlet are separately positioned on the cornerwise both ends of casing；
    Cavitation mechanism, including,
    One rotating shaft, is installed on center in casing, and both ends are run through former and later two sides of casing, driven by external motor；
    One impeller, is coaxially installed in rotating shaft, is made up of multiple blades, and the through hole run through is evenly equipped with the blade.
  2. 2. a kind of single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that described The number of blade is no less than three.
  3. 3. a kind of single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that described Spread pattern of the through hole on blade is equilateral triangle, corner equilateral triangle, square or corner square.
  4. 4. a kind of single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that described The both ends of through hole are provided with expanding structure.
  5. 5. a kind of single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that described Blade is tabular or curved.
  6. A kind of 6. single impeller rotary vane Hydrodynamic cavitation generating means according to claim 4, it is characterised in that reaming Angle is 10 °~50 °.
  7. 7. a kind of single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that described Liquid-inlet and the liquid outlet are pipe, and diameter parallel.
  8. 8. a kind of single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that described Rotating shaft and liquid-inlet and liquid outlet diameter parallel.
  9. 9. a kind of single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that described Casing is cavity rectangular parallelepiped structure, and the blade height is the 0.2-0.4 of box height, and the width of blade is box width 0.6-0.9。
  10. A kind of 10. single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that institute It is the 0.6-0.9 of cylinder width that casing, which is stated, as cavity cylinder, the width of blade, and the blade height is cylinder diameter 0.2-0.4.
  11. A kind of 11. single impeller rotary vane Hydrodynamic cavitation generating means according to claim 1, it is characterised in that institute It is rectangle structure to state blade.
CN201720941519.9U 2017-07-31 2017-07-31 A kind of single impeller rotary vane Hydrodynamic cavitation generating means Active CN207108561U (en)

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CN201720941519.9U CN207108561U (en) 2017-07-31 2017-07-31 A kind of single impeller rotary vane Hydrodynamic cavitation generating means

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Application Number Priority Date Filing Date Title
CN201720941519.9U CN207108561U (en) 2017-07-31 2017-07-31 A kind of single impeller rotary vane Hydrodynamic cavitation generating means

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