CN106629997B - A kind of multistage cavitation reactor - Google Patents
A kind of multistage cavitation reactor Download PDFInfo
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- CN106629997B CN106629997B CN201611266897.8A CN201611266897A CN106629997B CN 106629997 B CN106629997 B CN 106629997B CN 201611266897 A CN201611266897 A CN 201611266897A CN 106629997 B CN106629997 B CN 106629997B
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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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
Abstract
The present invention provides a kind of multistage cavitation reactors, belong to sewage cavitation process technical field comprising reaction supervisor and the n order reaction branch pipe group for being serially connected in reaction supervisor outlet end, n=1, and 2,3；Every first order reaction branch pipe group includes 2~4 reaction branch pipes being set side by side, and the outlet end of reaction supervisor and the outlet end of m order reaction branch pipe is provided with baffle, m is 1~n-1；Reaction supervisor is Venturi tube or the interior straight pipe type structure for setting perforated plate, the present invention is based on Venturi tube or perforated plates, cavitation microbubble is generated after the reacted supervisor throat of liquid or perforated plate, it is collapsed after moving to baffle by high pressure effect, generate strong oxidizing property free radical, continuous several times generate cavitation microbubble after reaction of high order branch pipe again, and it is collapsed under the effect of baffle pressure, generating more is in the increased strong oxidizing property free radical of the order of magnitude, the Venturi tube cavitation technology pollutant speed greatly improved improves the degradation efficiency of dirty organic pollutants.
Description
Technical field
The invention belongs to sewage cavitation process technical field, in particular to a kind of Hydrodynamic cavitation processing based on Venturi tube
The multistage cavitation reactor and sewage cavitation technology method of organic pollutant.
Technical background
Water is the material base that the mankind depend on for existence and development, the protection of water resource and recycle be in environmental protection most
One of important project.China is one of 13 poor-water states in the world, and over nearly twenties years, the water pollution in China is very tight
Weight, the water body investigated 118 big and medium-sized cities show that serious pollution accounts for 40%.The primary pollution source for causing water pollution is work
Industry pollutant effluents, agricultural pollution waste water and city domestic sewage.(carcinogenic, teratogenesis causes gene prominent to " three cause " especially difficult to degrade
Become) organic pollutant, they not only largely consume the dissolved oxygen in water body, the ability for making water body lose self purification, Er Qieneng
Presence in the environment for a long time, and invaded in human body by food chain and gradually accumulated, human health has been constituted seriously
It threatens.Simultaneously as the pollution of water body, causes many water resources that can not recycle, so that the deficient degree of water resource has been aggravated,
Affect the sustainable use and economic sustainable development of environment.Scientist, society and economy scholar and the government in China
Administrative department very pays close attention to the sustainable use of water resource, emphasizes that the sustainable use of water resource is that all natural resources are sustainable
Therefore a most important problem in development and utilization seeks that new methods and techniques are big to flow, ingredient is multiple more than pollutant and again
Miscellaneous industry, agricultural pollution waste water and city domestic sewage carry out effectively, advanced treating, will be created for the recycling of water resource
Condition.
Physical method carries out water process, due to not generating secondary pollution, referred to as " green water process ", receives extensive
Concern.Cavitation method therein is physical method because inexpensively can simply integrate high temperature, high pressure, mechanical shearing and be crushed
It carries out organic pollutant degradation and water body purification processing creates special form.The cavitation application of early stage is perforated plate 10 and text
Venturi, their advantage are that cavitation is formed by cavitation bubble and flows with liquid, can form cavitation field in a big way,
And capacity usage ratio is high, treating capacity is big, although however they handle sewage effectively, degradation effect of organic compound is not high, causes this
A reason is when sewage is after a cavitation, and to pass through longer time just can be carried out second of cavitation, especially general goal
When reason amount, the time by second of cavitation will be longer, causes cavitation technology inefficient, and with domestic patent, " multi-stage water power is empty
Change the method for intensified cane juice neutralization reaction " (application number: for 201410212544.4), the small end section of flaring pipe in the patent
The ratio of area and big end cross-sectional area is 0.1~0.3, by taking patent Fig. 1 and Fig. 2 of this application as an example, it is contemplated that: from water inlet
(big section) passes through connecting tube (small bore) namely throat, is easy to produce cavitation phenomenon, but the water shot out from connecting tube
By intermediate tube (big section) again directive connecting tube when be just difficult to generate cavitation, i.e., when the diameter of connecting tube and connecting tube is equal
When, the water come out from connecting tube will unimpededly pass completely through connecting tube, it is clear that cannot generate cavitation phenomenon.Therefore, existing
Have in technology using the cavitation technique that perforated plate and Venturi tube are realized that there is cavitation effect undesirable, leads to treatment effeciency
Low, the problems such as capacity usage ratio is low, especially in terms of Hydrodynamic cavitation degradable organic pollutant, since organic pollutant is originally in
Reason difficulty is larger, and cavitation effect is undesirable, and during making organic pollutant cavitation technology, degradation efficiency is low, at high cost, is applying
In it is significantly limited.
Summary of the invention
In order to overcome the problems, such as that existing Hydrodynamic cavitation degradable organic pollutant is inefficient, the present invention provides a kind of multistages
Cavitation reactor is to realize cavitation based on traditional Venturi tube or perforated plate, by the way of multistage continuous cavitation, significantly
Accelerate to manage interior cavitation technology pollutant speed, improves the degradation efficiency of dirty organic pollutants.
Used technical solution is the present invention to achieve the goals above:
The multistage cavitation reactor is responsible for and is serially connected in the n order reaction branch pipe group of reaction supervisor outlet end including reaction,
N=1,2,3；Every first order reaction branch pipe group includes 2~4 reaction branch pipes in diffused distribution being set side by side, and is led in reaction
The outlet end of pipe 1 and the outlet end of m order reaction branch pipe are provided with baffle, and m is 1~n-1, and the reaction supervisor is venturi
Pipe or the interior straight pipe type structure for setting perforated plate.
Further preferably, n-th grade of reaction branch pipe central axis with (n-1)th grade react between branch pipe central axis formed 5~
10 ° of angle.
Further preferably, plane where described n-th grade of reaction branch pipe reacts branch pipe place plane same with (n-1)th grade
In one plane.
Further preferably, plane where described n-th grade of reaction branch pipe reacts branch pipe place plane distribution with (n-1)th grade
In the plane that two intersect and angle is less than 90 °.
Further preferably, the reaction branch pipe that the first order reaction branch pipe group of least significant end is arranged in is distributed in diffused, and anti-
The central axis of branch pipe is answered to intersect at any point of the central axis of reaction supervisor.
It further limiting, the reaction supervisor is Venturi tube, and throat is arranged at the 1/3~2/3 of its whole flow process,
The ratio between throat diameter and the inlet diameter for reacting supervisor are 0.2~0.4.
Further preferably, the reaction branch pipe is venturi-type structure, the ratio between throat diameter and inlet diameter be 0.2~
0.4。
Further preferably, the inlet diameter of the inlet diameter D of the n-th order reaction branch pipe and the (n+1)th order reaction branch pipe it
It is D:d=3.0~3.46 than d.
Further preferably, the reaction branch pipe is the interior straight pipe type structure for setting perforated plate, and perforated plate setting is reacted in distance
The position of 40~50mm of branch outlet end, perforated plate are parallel with the reaction baffle at branch outlet end.Further preferably, the perforation
The porosity 5~8% of plate.
Multistage cavitation reactor of the invention is related to based on Venturi tube or perforated plate, using the side of multistage cavitation
Formula generates cavitation microbubble after making the reacted supervisor throat of liquid or perforated plate, moves to after baffle and is acted on hair by high pressure
Raw collapse, generates strong oxidizing property free radical, then continuous several times generate cavitation microbubble after reaction of high order branch pipe, and in baffle pressure
The lower collapse of power effect, generating more is in the increased strong oxidizing property free radical of the order of magnitude, the Venturi tube cavitation technology greatly improved
Pollutant speed improves the degradation efficiency of dirty organic pollutants.
Detailed description of the invention
Fig. 1 is n=2 and reacts the external structure schematic diagram of multistage cavitation reactor when branch pipe is 2.
Fig. 2 is the front section view of Fig. 1.
Fig. 3 is n=2 and reacts the structural schematic diagram of multistage cavitation reactor when branch pipe is 4.
Fig. 4 is the A-A schematic cross-sectional view of Fig. 3.
The structural schematic diagram of multistage cavitation reactor when Fig. 5 is n=2 and reacts branch pipe mal-distribution.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is multistage cavitation when n=2 and second order reaction branch pipe are distributed in two planes intersected with first order reaction branch pipe
The structural schematic diagram of reactor.
Fig. 8 is the top view of Fig. 7.
Multistage cavitation reactor structural schematic diagram when Fig. 9 is n=3.
Figure 10 is the scheme of installation of perforated plate 10.
Multistage cavitation reactor when Figure 11 is n=2 and first order reaction branch pipe is 3, second order reaction branch pipe is 2 it is outer
Portion's structural schematic diagram.
Specific embodiment
Technical solution of the present invention is further described now in conjunction with drawings and examples.
Embodiment 1
By Fig. 1 and 2 it is found that multistage cavitation reactor of the invention includes 1, first order reaction branch pipe group 2, second level of reaction supervisor
React branch pipe group 3, main baffle 5, one baffle 6.Wherein, reaction supervisor 1 is venturi tube structure, inlet diameter 40mm,
Pipe range is 60mm, and throat diameter 12mm, throat is arranged at the 1/2 of its whole flow process, and can adjust in 1/3~2/3 range
Whole, the ratio between throat diameter and the inlet diameter of reaction supervisor 1 can adjust in 0.2~0.4 range.The arrival end of reaction supervisor 1
It is connected to intake pump, the outlet end of reaction supervisor 1 is fixed with main baffle 5, occurs that water flow by the throat section of reaction supervisor 1 empty
Change reaction, generates a large amount of microbubble, as liquid flows, microbubble moves to the main baffle 5 and collides, and collapses microbubble
It bursts.It is machined with 2 branch pipe connecting holes on main baffle 5, is separately installed with pipe fitting on branch pipe connecting hole and passes through bridge piece
It is connect with first order reaction branch pipe group 2.
Referring to fig. 2, the present embodiment n=2 is connected with 2 first order reaction branch pipes, i.e. level-one in the outlet end of reaction supervisor 1
Reacting branch pipe group 2 includes first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2, first first order reaction branch
The central axis of pipe 2-1 and second first order reaction branch pipe 2-2 intersect on the central axis of reaction supervisor 1.First first order reaction
Branch pipe 2-1 and second first order reaction branch pipe 2-2 is venturi tube structure, first first order reaction branch pipe 2-1 and second
The central axis of first order reaction branch pipe 2-2 forms 9 ° of angle, and first first order reaction branch pipe with reacting between 1 central axis of supervisor
2-1 and second first order reaction branch pipe 2-2 is the distribution substantially symmetrical about its central axis about reaction supervisor 1.First first order reaction branch pipe
The inlet diameter of 2-1 and second first order reaction branch pipe 2-2 is 13.3mm, pipe range 60mm, throat diameter 2.66mm, larynx
The ratio between portion's diameter and inlet diameter are 0.2~0.4 i.e. certifiable preferably cavitation effect.In first first order reaction branch pipe 2-1
It is fixedly installed with one baffle 6 with the outlet end of second first order reaction branch pipe 2-2, makes water flow by first first order reaction branch
Cavitation occurs for the throat section of pipe 2-1 and second first order reaction branch pipe 2-2, a large amount of microbubble is generated, with liquid flow
Dynamic, microbubble moves to one baffle 6 and collides, and collapses microbubble.
In the outlet end one baffle 6 of above-mentioned first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2
On be machined with branch pipe connecting hole, be connected to by bridge piece with second order reaction branch pipe group 3.Second order reaction branch pipe group 3 includes first
A second order reaction branch pipe 3-1, second second order reaction branch pipe 3-2, third second order reaction branch pipe 3-3 and the 4th second order reaction
Branch pipe 3-4 is connected with first second order reaction branch pipe 3- by adapter in the outlet end of first first order reaction branch pipe 2-1
1 and second second order reaction branch pipe 3-2 is connected in the outlet end of second first order reaction branch pipe 2-2 also by switching bend pipe
Third second order reaction branch pipe 3-3 and the 4th second order reaction branch pipe 3-4.First second order reaction branch pipe 3-1 and second two
Plane where order reaction branch pipe 3-2 and the plane where first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2
For same plane.First second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2 is venturi tube structure, and the
One second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2 can be about in first first order reaction branch pipe 2-1
Mandrel is symmetrical.The inlet diameter of first second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2 is
4.16mm, pipe range are 60mm, throat diameter 0.83mm, and the ratio between throat diameter and inlet diameter are 0.2~0.4 i.e. certifiable
Preferably cavitation effect, in order to compensate for the hydraulic pressure loss in fluid operational process, the diameter d and level-one of above-mentioned second order reaction branch pipe
It reacts the ratio between diameter D of branch pipe to meet: D=3~3.46d.First second order reaction branch pipe 3-1, second second order reaction branch pipe
The central axis of 3-2, third second order reaction branch pipe 3-3 and the 4th second order reaction branch pipe 3-4 intersect at the center of reaction supervisor 1
On axis.Since second order reaction branch pipe group 3 is in water outlet, outlet end is without installing baffle.
Above-mentioned first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2 can also be in asymmetric distribution, i.e.,
Between the central axis of first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2 and the central axis for reacting supervisor 1
Angle can be different, adjust in the range of 5~10 °, because angle is excessive, hydraulic losses are too big, arrive next order reaction branch pipe
Interior hydraulic pressure is insufficient, will affect gas-liquid mixed and cavitation effect.
By Fig. 3 and 4 it is found that being connected with 4 first order reaction branch pipe groups 2 side by side on the exit end face of above-mentioned reaction supervisor 1, i.e.,
Respectively first first order reaction branch pipe 2-1, second first order reaction branch pipe 2-2, third first order reaction branch pipe 2-3 and the 4th
First order reaction branch pipe 2-4, first first order reaction branch pipe 2-1, second first order reaction branch pipe 2-2, third first order reaction branch pipe
2-3 and the 4th first order reaction branch pipe 2-4 uniformly and in diffused is distributed on the exit end face of reaction supervisor 1, and first
First order reaction branch pipe 2-1, second first order reaction branch pipe 2-2, third first order reaction branch pipe 2-3 and the 4th first order reaction branch pipe
Angle between the central axis of 2-4 and the central axis for reacting supervisor 1 is 10 °.In first first order reaction branch pipe 2-1, second
Distinguish on the exit end face of first order reaction branch pipe 2-2, third first order reaction branch pipe 2-3 and the 4th first order reaction branch pipe 2-4
4 second order reaction branch pipe groups 3 are connected with, each second order reaction branch pipe group 3 includes 4 second order reaction branch pipes, each second order reaction
Angle between branch pipe central axis and corresponding first order reaction branch pipe central axis is 8 °.4 second order reaction branch pipes are in external diffusion
Type distribution guarantees that the water discharging direction of second order reaction branch pipe group 3 is different, outside radial pattern.
In addition, the first order reaction branch pipe place plane and second order reaction branch pipe place plane in above-described embodiment can be together
One plane is also possible to cross one another two planes, and when being distributed in two planes of intersection, the angle between two planes is not
More than 90 °.
Illustrate for shown in Figures 5 and 6, first first order reaction branch pipe 2-1 and second place first order reaction branch pipe 2-2
Plane is same plane with the plane where first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2.Third
Plane and first first order reaction branch pipe 2-1 and second where second order reaction branch pipe 3-3 and the 4th second order reaction branch pipe 3-4
Level-crossing where first order reaction branch pipe 2-2, and the angle of two plane of place is 30 °, i.e., second order reaction branch pipe is in reaction supervisor 1
Central axis two sides asymmetric distribution.
Further illustrate for shown in Fig. 7,8, first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-
2 place planes, third second order reaction branch pipe 3-3 and plane where the 4th second order reaction branch pipe 3-4 with first level-one
The level-crossing where branch pipe 2-1 and second first order reaction branch pipe 2-2 is reacted, and the angle of two plane of place is 45 °, i.e., two
Order reaction branch pipe is symmetrical in the central axis two sides of reaction supervisor 1.
As shown in figure 9, the present embodiment n=3, i.e. the outlet end of the second order reaction branch pipe of above-described embodiment can also pass through switching
Head adds third-order reaction branch pipe group 4, i.e., in the outlet of first second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2
End is separately connected 2 identical third-order reaction branch pipe 4-1,4-2, anti-in third second order reaction branch pipe 3-3 and the 4th second level
The outlet end of branch pipe 3-4 is answered also to be separately connected 2 identical third-order reaction branch 4-3,4-4.4 place plane of third-order reaction branch pipe group
With 3 place level-crossing of second order reaction branch pipe, 4 place plane of third-order reaction branch pipe group is with 2 place plane of first order reaction branch pipe
In same plane.
Embodiment 2
Main perforated plate 7 is installed in reaction supervisor 1 in the present embodiment, main gear is installed in the outlet end of reaction supervisor 1
Plate 5,2 mounting holes of the reaction supervisor 1 by being provided on main baffle 5 are connected with 2 first order reaction branch pipes, i.e. first order reaction branch
Pipe group 2 includes first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2, first first order reaction branch pipe 2-1 and
Second first order reaction branch pipe 2-2 is the interior straight pipe type structure for setting level-one perforated plate 8, referring to Figure 10, first first order reaction
The central axis of branch pipe 2-1 and second first order reaction branch pipe 2-2 form 9 ° of angle with reacting between 1 central axis of supervisor, and the
One first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2 can be substantially symmetrical about its central axis point about reaction supervisor 1
Cloth.The diameter of first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2 are 13.3mm, pipe range 60mm, i.e.,
In position of the inner cavity of first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2 apart from 40~50mm of outlet end
It is mounted with level-one perforated plate 8, the aperture of level-one perforated plate 8 is 1mm, and porosity 6% can also be adjusted in 5~8% ranges
It is whole.One baffle is installed on the outlet end inner wall of first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2
6, make water flow that cavitation occur by the level-one perforated plate 8 of first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2
Reaction, generates a large amount of microbubble, as liquid flows, microbubble moves to one baffle 6 and collides, and collapses microbubble
It bursts.First first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2 can also be in asymmetric distribution, i.e., and first one
Angle between the central axis of order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2 and the central axis for reacting supervisor 1 can be with
Difference adjusts in the range of 5~10 °.
In the outlet end one baffle 6 of above-mentioned first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2
Outside is connected separately with second order reaction branch pipe group 3, and second order reaction branch pipe group 3 includes first second order reaction branch pipe 3-1, second
Second order reaction branch pipe 3-2, third second order reaction branch pipe 3-3 and the 4th second order reaction branch pipe 3-4.To facilitate installation,
Arm installing hole there are four being opened up on one baffle 6, i.e., in the outlet end of first first order reaction branch pipe 2-1 by being mounted on branch
Threeway adapter on pipe mounting hole is connected with first second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2,
The outlet end of two first order reaction branch pipe 2-2 is connected with third second level by the threeway adapter being mounted in arm installing hole
React branch pipe 3-3 and the 4th second order reaction branch pipe 3-4.First second order reaction branch pipe 3-1 and second second order reaction branch pipe
Plane where 3-2 and the plane where first first order reaction branch pipe 2-1 and second first order reaction branch pipe 2-2 are same flat
Face.First second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2 is the interior straight pipe type knot for setting second level perforated plate 9
Structure, and first second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2 can be about first first order reaction branch pipe
The distribution substantially symmetrical about its central axis of 2-1.The diameter of first second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2 is
4.15mm, pipe range are 60mm, in the inner cavity distance of first second order reaction branch pipe 3-1 and second second order reaction branch pipe 3-2
Second level perforated plate 9 is installed in the position of 40~50mm of outlet end, and the aperture of second level perforated plate 9 is 1mm, porosity 7%.
Referring to Figure 11, structure of the invention can also be is connected with 3 on the exit end face of above-mentioned reaction supervisor 1 side by side
First order reaction branch pipe group 2, i.e. respectively first first order reaction branch pipe 2-1, second first order reaction branch pipe 2-2 and the 3rd 1
Order reaction branch pipe 2-3, first first order reaction branch pipe 2-1, second first order reaction branch pipe 2-2 and third first order reaction branch pipe
2-3 uniformly and to external radiation in diffused is distributed on the exit end face of reaction supervisor 1, and first first order reaction branch pipe 2-1,
Between the central axis of second first order reaction branch pipe 2-2 and third first order reaction branch pipe 2-3 and the central axis for reacting supervisor 1
Angle is 10 °.In first first order reaction branch pipe 2-1, second first order reaction branch pipe 2-2 and third first order reaction branch pipe 2-
2 second order reaction branch pipe groups 3 are connected separately on 3 exit end face, each second order reaction branch pipe group 3 includes that 2 second levels are anti-
Branch pipe is answered, the angle between each second order reaction branch pipe central axis and corresponding first order reaction branch pipe central axis is 8 °, and second level is anti-
It answers branch pipe water outlet to be distributed to external radiation in diffused, guarantees that the water discharging direction of second order reaction branch pipe group 3 is different.
In addition, the first order reaction branch pipe place plane and second order reaction branch pipe place plane in above-described embodiment can be together
One plane is also possible to cross one another two planes, and when being distributed in two planes of intersection, the angle between two planes is not
More than 90 °.
Main baffle 5 and one baffle 6 mentioned in above-described embodiment can directly be inlaid in reaction supervisor 1 and level-one branch
The outlet end of pipe group 2 can also threadedly be fixed, or can also pass through connecting rod and corresponding each pipeline at its edge
Inner cavity is fixed, on the one hand baffle can be such that bubble hit collapses in the duct, raising cavitation effect, another aspect baffle choked flow,
Pressure loss of fluid during conduit running is compensated, undertaking effect will also furthermore be played to the connection between pipeline.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, for above-described embodiment
In every first order reaction branch pipe number and deflection angle can be determined according to pipeline section diameter and water flow size,
Can in the range of above-described embodiment any combination.All within the spirits and principles of the present invention, it is made it is any modification, etc.
With replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of multistage cavitation reactor, it is characterised in that: including reaction supervisor (1) and be serially connected in reaction supervisor (1) outlet
The n order reaction branch pipe group at end, n=1,2,3；Every first order reaction branch pipe group (2) includes that 2~4 be set side by side divide in diffused
The reaction branch pipe of cloth is provided with baffle in the outlet end of reaction supervisor (1) and the outlet end of m order reaction branch pipe, and m is 1~
N-1, the reaction supervisor (1) is Venturi tube or the interior straight pipe type structure for setting perforated plate (10).
2. multistage cavitation reactor according to claim 1, it is characterised in that: n-th grade of reaction branch pipe central axis and the
5~10 ° of angle is formed between n-1 grades of reaction branch pipe central axis.
3. multistage cavitation reactor according to claim 1, it is characterised in that: flat where described n-th grade of reaction branch pipe
Plane where branch pipe is reacted in the same plane with (n-1)th grade in face.
4. multistage cavitation reactor according to claim 1, it is characterised in that: flat where described n-th grade of reaction branch pipe
Face with (n-1)th grade react in the plane that plane distribution where branch pipe is intersected at two and angle is less than 90 °.
5. multistage cavitation reactor according to claim 1, it is characterised in that: the first order reaction branch pipe of least significant end is arranged in
The reaction branch pipe of group (2) is distributed in diffused, and the central axis for reacting branch pipe intersects at appointing for the central axis of reaction supervisor (1)
Meaning is a bit.
6. described in any item multistage cavitation reactors according to claim 1~5, it is characterised in that: (1) is responsible in the reaction is
Venturi tube, throat are arranged at the 1/3~2/3 of its whole flow process, reaction supervisor (1) throat diameter and inlet diameter it
Than being 0.2~0.4.
7. multistage cavitation reactor according to claim 6, it is characterised in that: the reaction branch pipe is venturi-type knot
Structure, the ratio between throat diameter and inlet diameter are 0.2~0.4.
8. multistage cavitation reactor according to claim 7, it is characterised in that: the entrance of the n-th order reaction branch pipe is straight
The ratio between the inlet diameter of diameter D and the (n+1)th order reaction branch pipe d is D:d=3~3.46.
9. multistage cavitation reactor according to claim 6, it is characterised in that: the reaction branch pipe is interior to set perforated plate
(10) position of distance reaction 40~50mm of branch outlet end, perforated plate (10) is arranged in straight pipe type structure, perforated plate (10)
It is parallel with the reaction baffle at branch outlet end.
10. multistage cavitation reactor according to claim 9, it is characterised in that: the porosity 5 of the perforated plate (10)~
8%.
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| CN109626502B (en) * | 2018-12-05 | 2021-09-10 | 江苏大学 | Cavitation generator for sewage degradation |
| CN109534442B (en) * | 2018-12-05 | 2021-08-03 | 江苏大学 | Angle type multi-stage cavitation generator |
| CN110342607B (en) * | 2019-07-22 | 2021-01-15 | 浙江大学 | Curved self-purification device and method based on cavitation |
| CN112777679B (en) * | 2021-01-08 | 2022-10-21 | 江苏国泉泵业制造有限公司 | Sewage treatment device |
| CN114735785B (en) * | 2022-04-18 | 2023-07-18 | 沈阳工业大学 | Multilayer continuous cavitation impinging stream reactor |
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