CN104528846B - A kind of equipment of Hydrodynamic Cavitation that increases cavitation number of free radical - Google Patents
A kind of equipment of Hydrodynamic Cavitation that increases cavitation number of free radical Download PDFInfo
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- CN104528846B CN104528846B CN201410850395.4A CN201410850395A CN104528846B CN 104528846 B CN104528846 B CN 104528846B CN 201410850395 A CN201410850395 A CN 201410850395A CN 104528846 B CN104528846 B CN 104528846B
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The present invention relates to a kind of equipment of Hydrodynamic Cavitation that increases cavitation number of free radical, comprise Hydrodynamic cavitation chamber, convergence type nozzle is set on the water inlet in Hydrodynamic cavitation chamber, be provided with bluff body and adjustable plate in the inside in Hydrodynamic cavitation chamber, bluff body is by curve 1 and curve 2, curve 3 according to the end to end closed curve forming clockwise around the central shaft in Hydrodynamic cavitation chamber the formed rotary body that rotates a circle, High-Pressure Water of the present invention is obstructed and forms high-pressure spray in Hydrodynamic cavitation chamber, generate cavitation bubble, utilize fluid along the wall flowing effect higher-pressure region of vacillating, run into inwall in higher-pressure region and adjustable plate obstacle collapses, generate a large amount of free radicals, thereby effectively improve the ability of Hydrodynamic cavitation degradable organic pollutant, to reach the object that improves and strengthen cavitation process waste water effect, of the present invention simple in structure, efficiency is high, easy to operate, be easy to management, cost is low, be suitable for industrial applications.
Description
Technical field
The invention belongs to fluid liquid cavitation generating means studying technological domain, relate in particular to one and utilize waterThe equipment of Hydrodynamic Cavitation of the increase cavitation number of free radical of power cavitation degradation treatment organic pollutant wastewater.
Technical background
" China Environmental State Bulletin " issued according to environmental protection general bureau claims, to nearly 140,000 kilometers of rivers, the whole nationThe water quality assessment that stream carries out, result shows that nearly 40% river has been subject to severe contamination; The whole nation seven large riversIn water system, bad V class water quality accounts for 41%. And another important investigation that Environmental Protection Administration issues shows, unitedIn the river in 131 cities of flowing through of China of meter, severe contamination have 36, serious pollution have 21Bar, intermediate pollution have 38.
Due to the pollution of water body, cause many water resources to recycle, thereby increased the weight of the deficient of water resourceWeary degree, has affected the sustainable use of environment and economic sustainable development. Therefore, seek new method, pollutant large to flow with technology many and again industry, the agricultural pollution waste water of complicated component carry out effectively,Advanced treating, creates conditions the recycling for water resource.
Physical method carries out water treatment, owing to not producing secondary pollution, is called as " Green Water processing ", is subject toArrive widely and paid close attention to. Cavitation method wherein, because can cheapness collecting simply high temperature, high pressure, mechanical shearCut and be broken for one, for physical method carries out organic pollutant degradation and spy has been created in water body purification processingDifferent form.
Venturi tube is one of representative of early stage Hydrodynamic cavitation generator, it appear as the cavitation place that purifies waste waterReason has been brought new method. But the application of traditional Venturi tube aspect sewage disposal is very limited,Most important performance is: free radical generation quantity is very few, and especially the generation number of hydroxyl radical free radical is very few,The effect that causes processing organic pollution is undesirable, and therefore this method of disposing of sewage is never in realityIn the engineering of border, be widely used.
Summary of the invention
In order effectively to overcome the existing technological deficiency of traditional Hydrodynamic cavitation, the invention provides oneCan make fluid generate a large amount of free radicals, effectively improve the ability of Hydrodynamic cavitation degradable organic pollutant, andAnd easy to operate, be easy to management, the water that cost is low, technical pattern simply increases cavitation number of free radicalPower cavitation apparatus.
The technical solution adopted in the present invention comprises Hydrodynamic cavitation chamber, at the side water inlet in Hydrodynamic cavitation chamberOn be provided with convergence type nozzle, the internal diameter in Hydrodynamic cavitation chamber is greater than nozzle water side internal diameter, makes convergence type sprayMouth and Hydrodynamic cavitation chamber form one-level venturi-type structure, relative with water inlet end another on Hydrodynamic cavitation chamberBottom, one end is processed with delivery port; Be provided with bluff body and adjustable plate, choked flow in the inside in Hydrodynamic cavitation chamberBody and adjustable plate are fixed by fixed bar spaced apart and Hydrodynamic cavitation cavity wall;
Above-mentioned bluff body by curve 1 and curve 2, curve 3 according to end to end forming clockwiseClosed curve is around the central shaft in Hydrodynamic cavitation chamber the formed rotary body that rotates a circle, with Hydrodynamic cavitation chamberInwall form secondary venturi-type passage;
Taking the water inlet end face in Hydrodynamic cavitation chamber and the intersection point of central shaft as the origin of coordinates, central shaft is x axle,The vertical center line intersecting vertically with x axle on the water inlet end face in Hydrodynamic cavitation chamber is y axle, and unit is mm;The linear equation of curve 1 is:
(x1-a1)2+(y1-b1)2＝92
The linear equation of curve 2 is:
(x2-a2)2+(y2+b2)2＝552
The linear equation of curve 3 is:
(x3-a3)2+(y3+b3)2＝562
Wherein a1Be the horizontal coordinate value in the center of circle of curve 1, value is 11～17;
b1Be the along slope coordinate value in the center of circle of curve 1, value is 8～12;
a2Be the center of circle horizontal coordinate value of curve 2, value is 43～51;
b2Be the along slope coordinate value in the center of circle of curve 2, value is 20～23;
a3Be the horizontal coordinate value in the center of circle of curve 3, value is 59～73;
b3Be the along slope coordinate value in the center of circle of curve 3, value is 29～34;
The central angle of curve 1 is 165～190 °, and the central angle of curve 2 is 66～105 °, curve 3Central angle is 54～86 °;
Above-mentioned adjustable plate is apart from the minimum clearance 3～6mm of bluff body, apart between Hydrodynamic cavitation cavity wallGap is 5～10mm.
Above-mentioned adjustable plate is to establish along the central axis direction in Hydrodynamic cavitation chamber on the inwall of spherical plate or surface plateBe set up baffle plate and lower baffle plate, the centre of sphere of spherical plate on the central shaft in Hydrodynamic cavitation chamber, overhead gage and lower blockPlate is about central shaft symmetry.
Preferably 28～41mm of height between above-mentioned overhead gage and lower baffle plate, the central angle of spherical plate is104～113 °, spherical radius is 36.5～44mm preferably, and the spherical crown height forming is 3～5mm.
Above-mentioned surface plate is 55～70mm apart from the distance of Hydrodynamic cavitation chamber water inlet.
The arrival end inwall arc surface structure in above-mentioned Hydrodynamic cavitation chamber, its longitudinal cross-section arc radius is25～67mm, central angle is 42～75 °, to avoid forming fluid dead angle.
The water inlet end diameter D of above-mentioned convergence type nozzleEnterWith water side diameter DGo outBetween pass be:5DGo out≥DEnter≥2DGo out, to ensure fluid pressure size to fit, collaborative with bluff body, strengthen cavitation effectReally.
The equipment of Hydrodynamic Cavitation of increase cavitation number of free radical of the present invention is by establishing in Hydrodynamic cavitation chamberPut bluff body, make to form between convergence type nozzle and Hydrodynamic cavitation chamber multistage venturi-type passage, high pressureThe formation high-pressure spray that is obstructed before and after current, because jet expansion is little, Hydrodynamic cavitation chamber intracavity space is large, shapeBecome negative pressuren zone, high-pressure spray generates cavitation bubble at negative pressure region, utilizes fluid along wall flowing effect, makesThe cavitation bubble that negative pressure region generates moves on to higher-pressure region in the effect downstream of wall effect, and runs in higher-pressure regionInwall and adjustable plate obstacle collapse, and generate a large amount of free radicals, thereby effectively improve Hydrodynamic cavitation degradedThe ability of organic pollution, to reach the object that improves and strengthen cavitation process waste water effect, of the present inventionSimple in structure, efficiency is high, easy to operate, be easy to management, cost is low, is suitable for industrial applications.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the left view of the bluff body 3 in Fig. 1.
Fig. 3 is the structural representation of adjustable plate 4.
Detailed description of the invention
Now with accompanying drawing, technical scheme of the present invention is further described in conjunction with the embodiments, but the present inventionBe not limited only to following enforcement situation.
Embodiment 1
Referring to Fig. 1 and Fig. 2, the equipment of Hydrodynamic Cavitation of the increase cavitation number of free radical of the present embodiment is by receivingHolding back type nozzle 1, Hydrodynamic cavitation chamber 2, bluff body 3, adjustable plate 4, fixed bar 5 connects and composes.
The Hydrodynamic cavitation chamber 2 of the present embodiment is the cylinder-like structure that the diameter of horizontal positioned is 76mm, waterThe chamber left end sidepiece in power cavitation chamber 2 is processed with water inlet, right-hand member bottom is processed with delivery port, in water inletOn mouthful, convergence type nozzle 1 is installed, the water inlet diameter D of this convergence type nozzle 1EnterFor 20mm, water outletMouth diameter DGo outFor 8mm, i.e. DEnter＝2.5DGo out, make convergence type nozzle 1 and Hydrodynamic cavitation chamber 2 form oneLevel venturi-type structure. After entering Hydrodynamic cavitation chamber 2, fluid stops in dead angle, by waterThe water inlet end inwall in power cavitation chamber 2 is processed as arc surface structure, and its longitudinal cross-section arc radius is 25mm,Central angle is 75 °. Close each other for fear of a large amount of micro-bubble groups that enter in Hydrodynamic cavitation chamber 2And become air pocket and break, bluff body 3 is installed in Hydrodynamic cavitation chamber 2, bluff body 3 is by fixingBar 5 is fixed on the inwall in Hydrodynamic cavitation chamber 2, and fixed bar 5 is uniformly at intervals in the periphery of bluff body 3, andAnd its diameter is relatively little, be as the criterion not affect current.
The bluff body 3 of the present embodiment is according to head and the tail phase clockwise by curve 1 and curve 2, curve 3The closed curve being connected into is around the central shaft in Hydrodynamic cavitation chamber 2 the formed rotary body that rotates a circle; Outside itBetween the inwall in wall and Hydrodynamic cavitation chamber 2, form secondary venturi-type passage, and himself forms oneIndividual three grades of venturi channel.
Taking the water inlet end face in Hydrodynamic cavitation chamber 2 and the intersection point of central shaft as the origin of coordinates, central shaft is xAxle, the vertical center line intersecting vertically with x axle on the water inlet end face in Hydrodynamic cavitation chamber 2 is y axle, singlePosition is mm;
The linear equation of curve 1 is: (x1-a1)2+(y1-b1)2＝92
a1Be the horizontal coordinate value in the center of circle of curve 1, value is 11;
b1Be the along slope coordinate value in the center of circle of curve 1, value is 8;
The central angle of curve 1 is 180 °.
The linear equation of curve 2 is: (x2-a2)2+(y2+b2)2＝552
a2Be the center of circle horizontal coordinate value of curve 2, value is 47;
b2Be the along slope coordinate value in the center of circle of curve 2, value is 20;
The central angle of curve 2 is 93 °.
The linear equation of curve 3 is: (x3-a3)2+(y3+b3)2＝562
a3Be the horizontal coordinate value in the center of circle of curve 3, value is 63;
b3Be the along slope coordinate value in the center of circle of curve 3, value is 32;
The central angle of curve 3 is 75 °.
Fixed bar 5 and screw threads for fastening are passed through near exit in right side at the interior bluff body 3 in Hydrodynamic cavitation chamber 2Connector is installed with adjustable plate 4, referring to Fig. 3, the adjustable plate 4 of the present embodiment be spherical plate 4-1 andOverhead gage 4-2, lower baffle plate 4-3 connect and compose, and overhead gage 4-2 and lower baffle plate 4-3 are welded to connect at sphereOn the inwall of plate 4-1, and symmetrical about the central shaft in Hydrodynamic cavitation chamber 2, the sphere of the present embodimentThe central angle of plate 4-1 is 113 °, and spherical radius is 37mm, and the spherical crown height forming is 4mm, ballThe centre of sphere of panel 4-1 on the central shaft in Hydrodynamic cavitation chamber 2 and circumferential edge along with the inwall in Hydrodynamic cavitation chamber 2Between form the gap of 8mm, ensure to discharge through delivery port after current pass through. The present embodiment overhead gage 4-2And the height between lower baffle plate 4-3 is 32mm, overhead gage 4-2 and lower baffle plate 4-3 are apart from bluff body 3Gap is 5mm, identical with spherical plate 4-1 apart from the distance of Hydrodynamic cavitation chamber 2 inwalls. Cavitation bubbleIn higher-pressure region, with spherical plate 4-1 collision, a part is between spherical plate 4-1 and Hydrodynamic cavitation chamber 2 inwallsSlit flow out, a part after spherical plate 4-1 holds back, again bump with upper and lower baffle plate 4-3, thoroughEnd collapse, forms afterwards HTHP shock wave and produces a large amount of free radicals, further improves waterpower skyChange the ability of degradable organic pollutant. In order further to ensure that cavitation bubble entirely collapses, by spherical plate 4-1Part between overhead gage 4-2, lower baffle plate 4-3 is processed as planar structure.
The equipment of Hydrodynamic Cavitation of the increase cavitation number of free radical of the present embodiment in use, High-Pressure Water fromThe inlet end of spout enters and forms jet after the convergence type passage of nozzle 1 and penetrate from nozzle 1 port of export,Because nozzle 1 is little, the space enlargement in Hydrodynamic cavitation chamber 2, the interior formation low-pressure area in Hydrodynamic cavitation chamber 2,Now small bubble population starts to form, after micro-bubble group runs into stopping of bluff body 3 according to along wallEffect, microbubble group is dispersed into two strands along the inwall in Hydrodynamic cavitation chamber 2 and the outer wall of bluff body 3,A part is along L1 region, and another part is along L2 region, under the effect of fluid two strands be bubble respectively toL3 moves higher-pressure region, and bump and collapse with 2 inside, Hydrodynamic cavitation chamber and adjustable plate 4, thus shapeBecome under HTHP and shock wave double action and produce a large amount of free radicals, and then effectively improve waterpower skyChange the ability of degradable organic pollutant.
Embodiment 2
On the water inlet in the Hydrodynamic cavitation chamber 2 of the present embodiment, nozzle 1 is installed, this nozzle 1 is convergence type knotStructure, the fluid passage of formation convergence type, its water inlet diameter DEnterFor 20cm, delivery port diameter DGo outFor10cm，DEnter/DGo outBe 2.
According to up time by curve 1 and curve 2, curve 3 at the bluff body 3 of Hydrodynamic cavitation chamber 2 interior installationsThe closed curve of the end to end one-tenth of pin direction rotates a circle formed around the central shaft in Hydrodynamic cavitation chamber 2Rotary body;
The linear equation of curve 1 is: (x1-a1)2+(y1-b1)2＝92
a1Be the horizontal coordinate value in the center of circle of curve 1, value is 12, the mm of unit;
b1Be the along slope coordinate value in the center of circle of curve 1, value is 9, the mm of unit;
The central angle of curve 1 is 190 °.
The linear equation of curve 2 is: (x2-a2)2+(y2+b2)2＝552
a2Be the center of circle horizontal coordinate value of curve 2, value is 43, the mm of unit;
b2Be the along slope coordinate value in the center of circle of curve 2, value is 23, the mm of unit;
The central angle of curve 2 is 66 °.
The linear equation of curve 3 is: (x3-a3)2+(y3+b3)2＝562
a3Be the horizontal coordinate value in the center of circle of curve 3, value is 66, the mm of unit;
b3Be the along slope coordinate value in the center of circle of curve 3, value is 29, the mm of unit;
The central angle of curve 3 is 54 °.
Right side at the interior bluff body 3 in Hydrodynamic cavitation chamber 2 is provided with adjustable plate 4, the present embodiment near exitAdjustable plate 4 be that spherical plate 4-1 and overhead gage 4-2, lower baffle plate 4-3 connect and compose, spherical plate 4-1 existsPart between overhead gage 4-2, lower baffle plate 4-3 is processed as planar structure, overhead gage 4-2 and lower baffle plate 4-3Be welded to connect on the inwall of spherical plate 4-1, and symmetrical about the central shaft in Hydrodynamic cavitation chamber 2,The central angle of the spherical plate 4-1 of the present embodiment is 104 °, and spherical radius is 44mm, the spherical crown formingHighly 5mm, the centre of sphere of spherical plate 4-1 on the central shaft in Hydrodynamic cavitation chamber 2 and circumferential edge along and waterBetween the inwall in power cavitation chamber 2, form the gap of 5mm, ensure to discharge through delivery port after current pass through. ThisHeight between embodiment overhead gage 4-2 and lower baffle plate 4-3 is 41mm, overhead gage 4-2 and lower baffle plate 4-3Be 3mm, distance and spherical plate 4-1 apart from Hydrodynamic cavitation chamber 2 inwalls apart from the gap of bluff body 4Identical.
Other parts and annexation thereof, operation principle are identical with embodiment 1.
Embodiment 3
The water inlet end inwall in the Hydrodynamic cavitation chamber 2 of the present embodiment is processed as arc surface structure, its longitudinal cross-sectionArc radius is 39mm, and central angle is 62 °. In Hydrodynamic cavitation chamber 2 receipts are installed on water inletHold back type nozzle 1, its water inlet diameter DEnterFor 20cm, delivery port diameter DGo outFor 4cm, DEnter/DGo outBe 5.
According to up time by curve 1 and curve 2, curve 3 at the bluff body 3 of Hydrodynamic cavitation chamber 2 interior installationsThe closed curve of the end to end one-tenth of pin direction rotates a circle formed around the central shaft in Hydrodynamic cavitation chamber 2Rotary body;
The linear equation of curve 1 is: (x1-a1)2+(y1-b1)2＝92
a1Be the horizontal coordinate value in the center of circle of curve 1, value is 12, the mm of unit;
b1Be the along slope coordinate value in the center of circle of curve 1, value is 12, the mm of unit;
The central angle of curve 1 is 170 °.
The linear equation of curve 2 is: (x2-a2)2+(y2+b2)2＝552
a2Be the center of circle horizontal coordinate value of curve 2, value is 43, the mm of unit;
b2Be the along slope coordinate value in the center of circle of curve 2, value is 21, the mm of unit;
The central angle of curve 2 is 74 °.
The linear equation of curve 3 is: (x3-a3)2+(y3+b3)2＝562
a3Be the horizontal coordinate value in the center of circle of curve 3, value is 62, the mm of unit;
b3Be the along slope coordinate value in the center of circle of curve 3, value is 29, the mm of unit;
The central angle of curve 3 is 66 °.
Right side at the interior bluff body 3 in Hydrodynamic cavitation chamber 2 is provided with adjustable plate 4, the present embodiment near exitAdjustable plate 4 be that spherical plate 4-1 and overhead gage 4-2, lower baffle plate 4-3 connect and compose, spherical plate 4-1 existsPart between overhead gage 4-2, lower baffle plate 4-3 is processed as planar structure, overhead gage 4-2 and lower baffle plate 4-3Be welded to connect on the inwall of spherical plate 4-1, and symmetrical about the central shaft in Hydrodynamic cavitation chamber 2,The central angle of the spherical plate 4-1 of the present embodiment is 105 °, and spherical radius is 36.5mm, the ball formingCrown height degree is 3mm, the centre of sphere of spherical plate 4-1 on the central shaft in Hydrodynamic cavitation chamber 2 and circumferential edge along withBetween the inwall in Hydrodynamic cavitation chamber 2, form the gap of 10mm, ensure to discharge through delivery port after current pass through.Height between the present embodiment overhead gage 4-2 and lower baffle plate 4-3 is 28mm, overhead gage 4-2 and lower baffle plate 4-3Be 6mm, distance and spherical plate 4-1 phase apart from Hydrodynamic cavitation chamber 2 inwalls apart from the gap of bluff body 3With.
Other parts and annexation thereof, operation principle are identical with embodiment 1.
Embodiment 4
The water inlet end inwall in the Hydrodynamic cavitation chamber 2 of the present embodiment is processed as arc surface structure, its longitudinal cross-sectionArc radius is 67mm, and central angle is 42 °. On the water inlet in Hydrodynamic cavitation chamber 2, convergence is installedType nozzle 1, its water inlet diameter DEnterFor 20cm, delivery port diameter DGo outFor 5cm, DEnter/DGo outBe 4.
According to up time by curve 1 and curve 2, curve 3 at the bluff body 3 of Hydrodynamic cavitation chamber 2 interior installationsThe closed curve of the end to end one-tenth of pin direction rotates a circle formed around the central shaft in Hydrodynamic cavitation chamber 2Rotary body;
The linear equation of curve 1 is: (x1-a1)2+(y1-b1)2＝92
a1Be the horizontal coordinate value in the center of circle of curve 1, value is 11, the mm of unit;
b1Be the along slope coordinate value in the center of circle of curve 1, value is 9, the mm of unit;
The central angle of curve 1 is 165 °.
The linear equation of curve 2 is: (x2-a2)2+(y2+b2)2＝552
a2Be the center of circle horizontal coordinate value of curve 2, value is 46, the mm of unit;
b2Be the along slope coordinate value in the center of circle of curve 2, value is 20, the mm of unit;
The central angle of curve 2 is 105 °.
The linear equation of curve 3 is: (x3-a3)2+(y3+b3)2＝562
a3Be the horizontal coordinate value in the center of circle of curve 3, value is 59, the mm of unit;
b3Be the along slope coordinate value in the center of circle of curve 3, value is 34, the mm of unit;
The central angle of curve 3 is 86 °.
Other parts and annexation thereof, operation principle are identical with embodiment 1.
Embodiment 5
The present embodiment is by curve 1 and curve 2, curve 3 at the bluff body 3 of Hydrodynamic cavitation chamber 2 interior installationsClosed curve according to the end to end one-tenth of clockwise direction rotates a circle around the central shaft in Hydrodynamic cavitation chamber 2The rotary body forming;
The linear equation of curve 1 is: (x1-a1)2+(y1-b1)2＝92
a1Be the horizontal coordinate value in the center of circle of curve 1, value is 19, the mm of unit;
b1Be the along slope coordinate value in the center of circle of curve 1, value is 9, the mm of unit;
The central angle of curve 1 is 190 °.
The linear equation of curve 2 is: (x2-a2)2+(y2+b2)2＝552
a2Be the center of circle horizontal coordinate value of curve 2, value is 50, the mm of unit;
b2Be the along slope coordinate value in the center of circle of curve 2, value is 23, the mm of unit;
The central angle of curve 2 is 66 °.
The linear equation of curve 3 is: (x3-a3)2+(y3+b3)2＝562
a3Be the horizontal coordinate value in the center of circle of curve 3, value is 73, the mm of unit;
b3Be the along slope coordinate value in the center of circle of curve 3, value is 29, the mm of unit;
The central angle of curve 3 is 54 °.
Other parts and annexation thereof, operation principle are identical with embodiment 1.
Embodiment 6
Bluff body 3 is installed in the present embodiment in Hydrodynamic cavitation chamber 2, and bluff body 3 is by curve 1 and songLine 2, curve 3 be the center around Hydrodynamic cavitation chamber 2 according to the closed curve of the end to end one-tenth of clockwise directionAxle the formed rotary body that rotates a circle;
The linear equation of curve 1 is: (x1-a1)2+(y1-b1)2＝92
a1Be the horizontal coordinate value in the center of circle of curve 1, value is 15, the mm of unit;
b1Be the along slope coordinate value in the center of circle of curve 1, value is 8, the mm of unit;
The central angle of curve 1 is 179 °.
The linear equation of curve 2 is: (x2-a2)2+(y2+b2)2＝552
a2Be the center of circle horizontal coordinate value of curve 2, value is 51, the mm of unit;
b2Be the along slope coordinate value in the center of circle of curve 2, value is 20, the mm of unit;
The central angle of curve 2 is 93 °.
The linear equation of curve 3 is: (x3-a3)2+(y3+b3)2＝562
a3Be the horizontal coordinate value in the center of circle of curve 3, value is 67, the mm of unit;
b3Be the along slope coordinate value in the center of circle of curve 3, value is 32, the mm of unit;
The central angle of curve 3 is 75 °.
Other parts and annexation thereof, operation principle are identical with embodiment 1.
Embodiment 7
The bluff body 3 of the present embodiment is according to head and the tail phase clockwise by curve 1 and curve 2, curve 3The closed curve being connected into is around the central shaft in Hydrodynamic cavitation chamber 2 the formed rotary body that rotates a circle;
The linear equation of curve 1 is: (x1-a1)2+(y1-b1)2＝92
a1Be the horizontal coordinate value in the center of circle of curve 1, value is 17, the mm of unit;
b1Be the along slope coordinate value in the center of circle of curve 1, value is 12, the mm of unit;
The central angle of curve 1 is 170 °.
The linear equation of curve 2 is: (x2-a2)2+(y2+b2)2＝552
a2Be the center of circle horizontal coordinate value of curve 2, value is 48, the mm of unit;
b2Be the along slope coordinate value in the center of circle of curve 2, value is 21, the mm of unit;
The central angle of curve 2 is 74 °.
The linear equation of curve 3 is: (x3-a3)2+(y3+b3)2＝562
a3Be the horizontal coordinate value in the center of circle of curve 3, value is 67, the mm of unit;
b3Be the along slope coordinate value in the center of circle of curve 3, value is 29, the mm of unit;
The central angle of curve 3 is 66 °.
Other parts and annexation thereof, operation principle are identical with embodiment 1.
The structure of the adjustable plate 4 of above-described embodiment 1～7 can also be by radially logical along Hydrodynamic cavitation chamber 2Cross fixed bar, the hard-wired surface plate of threaded fastener and be welded on the overhead gage 4-2 of surface plate inner sideWith lower baffle plate 4-3, overhead gage 4-2 and lower baffle plate 4-3 level install and with the central shaft in Hydrodynamic cavitation chamber 2Parallel, to replace with surface plate by the spherical plate 4-1 in above-described embodiment, the edge of surface plate is apart from waterThe gap of power cavitation chamber 2 inwalls is 5～10mm, and surface plate apart from the distance of Hydrodynamic cavitation chamber 2 water inlets is55～70mm, adjusts in scope of design in right amount according to actual service conditions such as water treatment amount sizes.
The specific design parameter of bluff body 3 of the present invention also can be adjusted according to actual conditions, not onlyBe limited to above-mentioned enforcement situation.
Claims (6)
1. increase an equipment of Hydrodynamic Cavitation for cavitation number of free radical, comprise Hydrodynamic cavitation chamber (2), itsBe characterised in that: on the side water inlet of Hydrodynamic cavitation chamber (2), be provided with convergence type nozzle (1), waterpowerThe internal diameter in cavitation chamber (2) is greater than nozzle (1) water side internal diameter, makes convergence type nozzle (1) and waterpower skyChange chamber (2) and form one-level venturi-type structure, Hydrodynamic cavitation chamber (2) upper relative with water inlet end separatelyBottom, one end is processed with delivery port; Be provided with bluff body (3) in the inside of Hydrodynamic cavitation chamber (2) and adjustJoint plate (4), bluff body (3) and adjustable plate (4) are by fixed bar spaced apart (5) and waterpower skyChanging chamber (2) inwall fixes;
Above-mentioned bluff body (3) is according to end to end clockwise by curve 1 and curve 2, curve 3The closed curve forming is around the central shaft of Hydrodynamic cavitation chamber (2) the formed rotary body that rotates a circle, withThe inwall in Hydrodynamic cavitation chamber (2) forms secondary venturi-type passage;
Taking the water inlet end face of Hydrodynamic cavitation chamber (2) and the intersection point of central shaft as the origin of coordinates, central shaft isX axle, the vertical center line intersecting vertically with x axle on the water inlet end face of Hydrodynamic cavitation chamber (2) is y axle,Unit is mm;
The linear equation of curve 1 is:
(x1-a1)2+(y1-b1)2＝92
The linear equation of curve 2 is:
(x2-a2)2+(y2+b2)2＝552
The linear equation of curve 3 is:
(x3-a3)2+(y3+b3)2＝562
Wherein a1Value is 11～17; b1Value is 8～12; a2Value is 43～51; b2Value is 20～23;a3Value is 59～73; b3Value is 29～34;
The central angle of curve 1 is 165～190 °, and the central angle of curve 2 is 66～105 °, curve 3Central angle is 54～86 °;
Above-mentioned adjustable plate (4) apart from the minimum clearance of bluff body (3) be 3～6mm, apart from Hydrodynamic cavitationThe gap of chamber (2) inwall is 5～10mm.
2. the equipment of Hydrodynamic Cavitation of increase cavitation number of free radical according to claim 1, its feature existsIn: described adjustable plate (4) is along Hydrodynamic cavitation chamber (2) on the inwall of spherical plate (4-1) or surface plateCentral axis direction overhead gage (4-2) and lower baffle plate (4-3) are set, the centre of sphere of spherical plate (4-1) is at waterOn the central shaft in power cavitation chamber (2), overhead gage (4-2) and lower baffle plate (4-3) are about central shaft symmetry.
3. the equipment of Hydrodynamic Cavitation of increase cavitation number of free radical according to claim 2, its feature existsIn: the height between described overhead gage (4-2) and lower baffle plate (4-3) is 28～41mm, spherical plate (4-1)Central angle be 104～113 °, spherical radius is 36.5～44mm, the spherical crown height forming is 3～5mm.
4. the equipment of Hydrodynamic Cavitation of increase cavitation number of free radical according to claim 2, its feature existsIn: described surface plate is 55～70mm apart from the distance of Hydrodynamic cavitation chamber (2) water inlet.
5. the equipment of Hydrodynamic Cavitation of increase cavitation number of free radical according to claim 1, its feature existsIn: the water inlet end inwall in described Hydrodynamic cavitation chamber (2) is arc surface structure, and its longitudinal cross-section arc radius is25～67mm, central angle is 42～75 °.
6. the equipment of Hydrodynamic Cavitation of increase cavitation number of free radical according to claim 1, its featureBe: the water inlet end diameter D of described convergence type nozzle (1)EnterWith water side diameter DGo outBetween relationFor: 5DGo out≥DEnter≥2DGo out。
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| CN106630370B (en) * | 2015-11-04 | 2019-07-30 | 广东源控环保科技有限公司 | Sewage disposal system, the method for Hydrodynamic cavitation dephosphorization apparatus and the application device |
| CN106630523B (en) * | 2015-11-04 | 2019-07-30 | 广东源控环保科技有限公司 | A kind of Hydrodynamic cavitation subtracts mud machine and its sewage water treatment method |
| CN106745489A (en) * | 2016-12-24 | 2017-05-31 | 青岛科技大学 | A kind of Hydrodynamic cavitation sewage disposal device |
| WO2018201302A1 (en) * | 2017-05-02 | 2018-11-08 | 东莞源控环保科技有限公司 | Denitrification treatment system and method for urban wastewater |
| CN109718674B (en) * | 2018-12-29 | 2021-07-20 | 陕西师范大学 | Micro-bubble cavitation tank and micro-bubble cavitation method |
| CN109737537B (en) * | 2018-12-29 | 2020-12-25 | 陕西师范大学 | Household moist oxygen-enriched atomization device and method |
| CN112023741B (en) * | 2020-08-28 | 2021-11-05 | 中南大学 | Two-section cavitation bubble generator |
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| JP3130751B2 (en) * | 1995-01-30 | 2001-01-31 | 株式会社荏原製作所 | Ozone water production method and apparatus |
| JP2001017956A (en) * | 1999-07-06 | 2001-01-23 | Babcock Hitachi Kk | Sterilizer |
| CN103232108B (en) * | 2013-05-15 | 2014-03-05 | 陕西师范大学 | Venturi tube type hydrodynamic cavitation water treatment device |
| CN203683150U (en) * | 2013-12-12 | 2014-07-02 | 天长市华润清洗科技有限公司 | Rotary water current jet box type cavitation inactivating device |
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