CN108117147A - A kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench - Google Patents
A kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench Download PDFInfo
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- CN108117147A CN108117147A CN201810106341.5A CN201810106341A CN108117147A CN 108117147 A CN108117147 A CN 108117147A CN 201810106341 A CN201810106341 A CN 201810106341A CN 108117147 A CN108117147 A CN 108117147A
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- cavitation
- sewage disposal
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- 239000010865 sewage Substances 0.000 title claims abstract description 57
- 230000006641 stabilisation Effects 0.000 claims abstract description 22
- 238000011105 stabilization Methods 0.000 claims abstract description 22
- 230000008602 contraction Effects 0.000 claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000010349 pulsation Effects 0.000 abstract description 5
- 238000004065 wastewater treatment Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 238000002309 gasification Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 229920006395 saturated elastomer Polymers 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 239000007792 gaseous phase Substances 0.000 description 6
- 150000003254 radicals Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/02—Laboratory benches or tables; Fittings therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention is a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, belong to field of environment protection equipment, including the first current stabilization straight pipe 8, circular cone contraction section 9, trunnion section 10, groove vortex groove 11, the 12 and second current stabilization straight pipe 13 of conical expander section being sequentially communicated；Groove vortex groove 11 is installed between trunnion section 10 and conical expander section 12.First current stabilization straight pipe 8, circular cone contraction section 9, trunnion section 10, the inner surface of 12 and second current stabilization straight pipe 13 of conical expander section are smooth, and the inner surface of groove vortex groove 11 is tapped with groove；11 entrance connected circular hole of groove vortex groove is identical with the diameter of trunnion section 10 and is directly connected to, and the outlet connected circular hole of groove vortex groove 11 is identical with the end diameter of conical expander section 12 and is directly connected to.The present invention improves the cavitation efficiency of venturi equipment of Hydrodynamic Cavitation, eliminates the pulsation phenomenon of cavitation zone, enhance wastewater treatment efficiency by increasing groove vortex groove 11 in traditional venturi equipment of Hydrodynamic Cavitation.
Description
Technical field
The present invention is a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, for studying venturi water
Influence of the power cavitation processes to sewage disposal, belongs to field of environment protection equipment.
Background technology
When water flows through variable section channel, speed and pressure will change, and follow Bernoulli equation.Work as current
During the passage constantly to become smaller through section, flow velocity constantly increases, and pressure reduces therewith, and the pressure of water can be reduced under corresponding temperature
Saturated vapour pressure.When the low saturation vapour pressure under corresponding temperature of the pressure of water, the water of liquid starts with molten in water
The incondensable gas of solution generates substantial amounts of cavitation bubble as gasification core, gasification.Cavitation bubble continues to flow with current, works as pressure
During strong quick rise, cavitation bubble can be presented " snowslide " formula and crumble and fall, this phenomenon is known as Hydrodynamic cavitation.Research shows to influence water
Two key factors of power cavitation efficiency are flow field change severe degree and gasification core amounts, and flow field change is more violent, gasification
Core amounts are more, and cavitation efficiency is higher.
At present, Hydrodynamic cavitation is applied in terms of sewage disposal.Sewage flows through equipment of Hydrodynamic Cavitation, empty in waterpower
Disguise the cavitation zone end put, cavitation bubble is quickly crumbled and fall, and generation, should with high activity, the OH free radicals of high oxidative
Free radical is reacted with the organic matter in sewage, completes sewage disposal.
Sewage disposal research carries out on the sewage disposal experimental bench of designed, designed.Sewage disposal experimental bench is as shown in Figure 1,
It is a set of effluent cycle experimental system, water pump drives sewage to be flowed in the experiment circulatory system, and gate valve control flows into venturi water
The flow and pressure of the sewage of power cavitation apparatus make sewage handle certain time by venturi equipment of Hydrodynamic Cavitation, pass through survey
The variation of COD (COD) before and after amount sewage disposal, to determine wastewater treatment efficiency.
Venturi equipment of Hydrodynamic Cavitation is a kind of typical equipment of Hydrodynamic Cavitation, due to its with flow field stablize, energy consumption compared with
Low plurality of advantages, is applied in sewage disposal.But its cavitation is less efficient, while also there is cavitation zones
The pulsation phenomenon with disappearing periodically is generated, influences wastewater treatment efficiency.It studies and designs a kind of special venturi waterpower sky
Makeup is put, and applied to the sewage disposal experimental bench of designed, designed shown in FIG. 1, research improves the sky of venturi equipment of Hydrodynamic Cavitation
The pulsation phenomenon for changing efficiency and elimination cavitation zone is of great significance to sewage disposal.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of venturi waterpower applied to sewage disposal experimental bench is empty
Makeup is put.The device is suitably increasing convection current by increasing a groove vortex groove in traditional venturi equipment of Hydrodynamic Cavitation
Increase gasification core number while the disturbance of field, so as to improve the cavitation efficiency of venturi equipment of Hydrodynamic Cavitation, eliminate cavitation zone
The pulsation phenomenon with disappearing periodically is generated, cavitation zone is made more to stablize.The device can obtain higher cavitation efficiency with
Stable cavitation zone can improve wastewater treatment efficiency.
In order to achieve the above object, the technical solution adopted in the present invention is：It is a kind of applied to sewage disposal experimental bench
Venturi equipment of Hydrodynamic Cavitation, including be sequentially communicated the first current stabilization straight pipe 8, circular cone contraction section 9, trunnion section 10, groove whirlpool
Chute 11,12 and second current stabilization straight pipe 13 of conical expander section, it is characterised in that：Between trunnion section 10 and conical expander section 12
Groove vortex groove 11 is installed.
A kind of above-mentioned venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, the first current stabilization straight pipe 8,
Circular cone contraction section 9, trunnion section 10, the inner surface of 12 and second current stabilization straight pipe 13 of conical expander section are smooth, the groove vortex
The inner surface of slot 11 is tapped with groove.
A kind of above-mentioned venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, the stream of the groove vortex groove 11
It is identical with the diameter of trunnion section 10 and be directly connected to, the outflow connected circular hole and conical expander of groove vortex groove 11 to enter connected circular hole
The end diameter of section 12 is identical and is directly connected to.
A kind of above-mentioned venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, the groove vortex groove 11 enter
Mouth connected circular hole diameter d1For 4mm, outlet connected circular hole diameter d2For 4.25mm；Groove depth h is 2mm, and width l is 2mm.
A kind of above-mentioned venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, table in the groove vortex groove 11
Groove height on face is the 1/40 of throat diameter.
Compared to the prior art, the present invention has the following advantages：
1st, the present invention is a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, in trunnion section 10 and circle
A groove vortex groove 11 is installed between cone expansion segment 12.The design of groove vortex groove 11 causes mainstream that can roll up a large amount of bubbles of sucking
As the gasification core of saturated water cavitation in conical expander section 12, gasification core number can be increased considerably, improves cavitation effect
Rate.Gasify simultaneously being significantly increased of core number so that in conical expander section 12, the cavitation processes of saturated water are to incondensable gas
The dependence of core reduces, the phenomenon that so as to eliminate cavitation zone periodically pulsing in conical expander section 12.
2nd, the outflow Circularhole diameter for flowing into Circularhole diameter and being less than on the right side of it in 11 left side of groove vortex groove, more saturated water
Into groove vortex groove 11, a gas-liquid mixed vortex is formed in groove vortex groove 11, simultaneously because groove is to whirlpool in slot
The perturbation action of stream, occurs saturated water cavitation and the re-liquefied complex process of vapor in slot, this cavitation processes can also generate
A certain number of OH free radicals.Vortex can also strengthen the Involving velocity of mainstream simultaneously, improve the gas phase ratio of mainstream volume sucking,
So as to improve cavitation efficiency.
3rd, the cross-sectional flow area of circular cone contraction section 9, trunnion section 10 and groove vortex groove 11 occurs from gradually tapering up stabilization
The constant variation for arriving sudden enlargement again, the variation of cross-sectional flow area make one class Venturi tube structure of above-mentioned three sections of compositions；Groove whirlpool
The latter half of chute 11 occurs not changing to sudden contraction again to gradual expansion from stable with the cross-sectional flow area of conical expander section 12
The variation opened, the variation of cross-sectional flow area make this two sections also to form a class Venturi tube structures.Two class Venturi tube structure aggravations
Disturbance suffered by saturated flow, violent disturbance will improve cavitation efficiency.
The present invention is carried by way of increasing a groove vortex groove 11 in traditional venturi equipment of Hydrodynamic Cavitation
Its high cavitation efficiency eliminates the pulsation phenomenon of its cavitation zone, promotes venturi equipment of Hydrodynamic Cavitation in sewage disposal process
Popularization and application.
Description of the drawings
Fig. 1 is the sewage disposal experimental bench schematic diagram that the present invention uses；
Fig. 2 is the inner flow passage schematic diagram of the present invention；
Fig. 3 is the perspective cross-sectional structure chart of the present invention；
Fig. 4 is the inner surface groove enlarged drawing of the groove vortex groove of the present invention；
Fig. 5 is the gaseous phase volume score chart of numerical simulation when inlet pressure of the present invention is 0.4MPa；
Fig. 6 is speed vector figure in the groove vortex groove of numerical simulation when inlet pressure of the present invention is 0.4MPa；
Fig. 7 is the present invention from circular cone contraction section 9 to 12 cross-sectional flow area change schematic diagram of conical expander section.
1. water tank in figure, 2. water pumps, 3. gate valves, 4. flowmeters, 5. first pressure gauges, 6. venturi equipment of Hydrodynamic Cavitation,
7. second pressure gauge, 8. first current stabilization straight pipes, 9. circular cone contraction sections, 10. trunnion sections, 11. groove vortex grooves, 12. circular cones expand
Open section, 13. second current stabilization straight pipes.
It is the gaseous phase volume score chart from circular cone contraction section 9 to conical expander section 12 shown in wherein Fig. 5, scale color
From black to representing gaseous phase volume fraction from low to high successively in vain；Arrow direction represents directional velocity in Fig. 6, and arrow length represents speed
Size is spent, arrow is longer, and speed is bigger, and arrow is closeer, and velocity gradient is bigger；Number represents circular cone contraction respectively on Fig. 7 transverse axis
Section 9, trunnion section 10, groove vortex groove 11 and conical expander section 12, each segment length is respectively above-mentioned each section relatively long on transverse axis
Degree, the longitudinal axis represent cross-sectional flow area.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 2, the present invention is a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, including according to
First current stabilization straight pipe 8 of secondary connection, circular cone contraction section 9, trunnion section 10, groove vortex groove 11, conical expander section 12 and second
Current stabilization straight pipe 13.
As shown in figure 3, the first current stabilization straight pipe 8, circular cone contraction section 9, trunnion section 10,12 and second current stabilization of conical expander section
The inner surface of straight pipe 13 is smooth, and the inner surface of groove vortex groove 11 has groove.
Numerical simulation is carried out to the present invention using FLUENT softwares, in the range of inlet pressure is 0.3-0.8MPa, outlet
Pressure is under conditions of atmospheric pressure, groove vortex groove size preferably as shown in Figure 4, the size cavitation effect is best, groove whirlpool
The entrance connected circular hole diameter d of chute 111For 4mm, outlet connected circular hole diameter d2For 4.25mm；Groove depth h is 2mm, width l
For 2mm.
As shown in figure 4, the groove height on 11 inner surface of groove vortex groove is the 1/40 of throat diameter.
Fig. 5 and Fig. 6 is the number when inlet pressure is 0.4MPa, and outlet pressure is atmospheric pressure using size shown in Fig. 4
It is worth analog result.Fig. 5 shows the axial cross section gaseous phase volume score chart from circular cone contraction section 9 to conical expander section 12, face
Color is whiter, represents that gaseous phase volume fraction is higher.Fig. 6 shows the flow field velocity polar plot in groove vortex groove 11, arrow side
To directional velocity is represented, arrow length represents velocity magnitude, and arrow is longer, and speed is bigger, and arrow is closeer, and velocity gradient is bigger.
The sewage disposal process of above-mentioned venturi equipment of Hydrodynamic Cavitation is as described below.
As shown in Figure 1, under the action of water pump 2, sewage flows into sewage disposal experimental system from water tank 1, is according to experiment
Flowmeter 4 and first pressure gauge 5 on system, second pressure gauge 7, regulation gate valve 3 cause sewage with appropriate flow and pressure current
Enter venturi equipment of Hydrodynamic Cavitation 6.
As shown in Figures 2 and 3, after sewage enters venturi equipment of Hydrodynamic Cavitation 6, due in the first current stabilization straight pipe 8
Footpath remains unchanged, sewage steady flow in the first current stabilization straight pipe 8.Continue to flow into circular cone contraction section 9, as shown in fig. 7,
In circular cone contraction section 9, cross-sectional flow area quickly reduces, so that the flow velocity of sewage is continuously increased, sewage pressure decreases,
When sewage pressure is reduced to the temperature and corresponds to saturated vapour pressure, the water in sewage enters saturation state at this time.
Sewage continues to flow into trunnion section 10, and in trunnion section 10, sewage continues steady flow.As shown in figure 5, in trunnion section
10 leading edge and close wall surface position have a small amount of cavitation bubble to generate.This is because there was only sewage stream near wall in trunnion section 10
Speed is smaller, and effluent flow rate is too high at center, and incondensable gas core has little time to grow up just flows out trunnion section 10 with sewage, due to
This technology adds groove vortex groove 11 after trunnion section 10, promotes the generation and development of gasification core.
After sewage flows into groove vortex groove 11, as shown in fig. 7, before circular cone contraction section 9, trunnion section 10 and groove vortex groove 11
The variation of half part cross-sectional flow area is respectively to gradually taper up, and stablizes the states such as stable after constant and sudden expansion becomes larger, forms one
Class Venturi tube structure, the first half of groove vortex groove 11 are equivalent to the expansion segment of common Venturi tube so that full in sewage
With water groove vortex groove 11 the quick cavitation of first half, and cross section of fluid channel product undergo mutation, disturb more violent, cavitation journey
Higher when degree is compared to cross section of fluid channel product gentle transition provides more gasification cores for the cavitation in downstream conical expander section 12.
As shown in fig. 6, vapor and saturated water that cavitation generates form gas-liquid mixed vortex in groove vortex groove 11, and
And close to the place of groove top, velocity arrow is more sparse, and flow velocity is smaller.Due to close groove top in groove vortex groove 11
Flow velocity is smaller, by using mode as shown in Figure 4, increases groove in 11 inner surface of groove vortex groove, groove is added to whirlpool
The disturbance of stream so that the low speed saturated water of near wall also can cavitation, improve gaseous phase volume fraction in groove vortex groove 11.Due to
The complex flow of vortex, violent disturbance can make the undissolved gas core in sewage grow up and rupture rapidly, generate a fixed number
The OH free radicals of amount.
As shown in figure 4, the inflow connected circular hole diameter d of groove vortex groove 111For 4mm, outflow connected circular hole diameter d2For
4.25mm.It is less than outflow Circularhole diameter due to flowing into Circularhole diameter, as shown in fig. 6, mainstream flows forward in groove vortex groove 11
It is expanded while dynamic to the direction of off-axis, more water in saturation state enter groove vortex groove 11, are vortexed groove
Vortex in slot 11 is stronger, and strong vortex contributes to the Involving velocity of mainstream；Groove is can be seen that with reference to Fig. 5 and Fig. 6
Gas phase in vortex groove 11 is entered by mainstream volume inspiration in mainstream, and gasification core amounts in mainstream are significantly increased.Mainstream rolls up inspiration
Together as gasification core, the generation in conical expander section 12 is more with incondensable gas original in mainstream for substantial amounts of bubble
Cavitation bubble.Since the bubbles volume of volume sucking is much larger than the amount of original incondensable gas, can steadily provide sufficient amount of
Gasify core.Due to the increase for the core amounts that gasify, the water of saturation state can generate more skies in conical expander section 12
Change bubble, so as to improve the cavitation efficiency of venturi equipment of Hydrodynamic Cavitation；And the cavitation processes of saturated water are to incondensable gas
The phenomenon that dependence of gasification core reduces, avoids cavitation zone periodically pulsing.
Sewage with a large amount of bubbles flows into conical expander section 12 from groove vortex groove 11, groove vortex groove 11 it is latter half of
Divide and form a class Venturi tube structure again with conical expander section 12, as shown in fig. 7, stream of the cross-sectional flow area in groove vortex groove 11
It is become larger again after going out at circular hole to reach minimum, conical expander section 12 is equivalent to the expansion segment of common Venturi tube, expands in circular cone
Generation cavitation bubble in section 12 is opened to grow up and " crumbling and fall " phenomenon.From figure 7 it can be seen that in conical expander section 12, passage section
Parabolically formula increases product, therefore is entering 12 initial stage of conical expander section, and cross-sectional flow area variation is slow, and pressure change is also more
Slowly, the water of saturation state can be to bring bubble to continue generation cavitation, cavitation gas as core from groove vortex groove 11 in sewage
Bubble continues to grow up, and shows the phenomenon that vapor phase areas further increases in Figure 5；As shown in fig. 7, as conical expander section 12 is straight
Footpath continues to increase, and cross-sectional flow area speedup is constantly accelerated, and effluent flow rate quickly reduces and pressure is rapidly gone up, and presents in Figure 5
Go out a relatively narrow sharp side, void fraction is very big in sharp side starting section, and gas phase all disappears behind sharp side, illustrates cavitation bubble in this cutting edge of a knife or a sword
Drastically " crumbling and fall " disappears in face.When cavitation bubble is crumbled and fall, instantaneous localized hyperthermia, hyperbaric environment can be generated, this special environment,
It is enough to open the chemical bond in hydrone, forms high oxidative, the OH free radicals of high activity, and the OH free radicals of high activity
Oxidation reaction can occur with the organic pollution in sewage, most organic pollutants oxidative degradation in water can be become harmless object
Matter, so as to reach purpose of purifying the water quality.Last sewage flows into the second current stabilization straight pipe 13, flows back to water again after this section of current stabilization
Case 1 completes a sewage disposal cyclic process.For sewage after venturi equipment of Hydrodynamic Cavitation 6 handles a period of time, measurement is dirty
The variation of COD (COD) before and after water process, to determine wastewater treatment efficiency.
Claims (5)
1. a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench, including the first current stabilization straight tube being sequentially communicated
Section (8), circular cone contraction section (9), trunnion section (10), groove vortex groove (11), conical expander section (12) and the second current stabilization straight pipe
(13), it is characterised in that：The groove vortex groove (11) of tooth of synchronous belt is installed between trunnion section (10) and conical expander section (12).
2. a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench according to claims 1, special
Sign is：The first current stabilization straight pipe (8), circular cone contraction section (9), trunnion section (10), conical expander section (12) and second are steady
The inner surface of stream straight pipe (13) is smooth, and the inner surface of the groove vortex groove (11) is tapped with groove.
3. a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench according to claims 1, special
Sign is：The inflow connected circular hole of the groove vortex groove (11) is identical with the diameter of trunnion section (10) and is directly connected to, groove
The outflow connected circular hole of vortex groove (11) is identical with the end diameter of conical expander section (12) and is directly connected to.Groove vortex groove
(11) entrance connected circular hole diameter (d1) it is more than outlet connected circular hole diameter (d2)。
4. a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench according to claims 1, special
Sign is：In the range of inlet pressure is 0.3-0.8MPa, outlet pressure is the groove vortex groove under conditions of atmospheric pressure
(11) entrance connected circular hole diameter (d1) it is 4mm, outlet connected circular hole diameter (d2) it is 4.25mm；Groove depth (h) is 2.5mm,
Width (l) is 2.5mm.
5. a kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench according to claims 1, special
Sign is：Groove height is the 1/40 of throat diameter on the inner surface of the groove vortex groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106341.5A CN108117147A (en) | 2018-02-02 | 2018-02-02 | A kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106341.5A CN108117147A (en) | 2018-02-02 | 2018-02-02 | A kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108117147A true CN108117147A (en) | 2018-06-05 |
Family
ID=62233366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810106341.5A Pending CN108117147A (en) | 2018-02-02 | 2018-02-02 | A kind of venturi equipment of Hydrodynamic Cavitation applied to sewage disposal experimental bench |
Country Status (1)
| Country | Link |
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| CN (1) | CN108117147A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2261476A1 (en) * | 1999-02-12 | 2000-08-12 | Takashi Yamamoto | Apparatus for sewage purifying treatment |
| CN203955059U (en) * | 2014-05-29 | 2014-11-26 | 西安交通大学 | The venturi mixer that a kind of throat length is adjustable |
| CN105289347A (en) * | 2015-10-30 | 2016-02-03 | 西安交通大学 | Stepped venturi mixer |
| CN105675070A (en) * | 2016-03-28 | 2016-06-15 | 中国海洋石油总公司 | Irregular Venturi flowmeter and method for measuring gas-liquid phase flow in multiphase flow by utilization of irregular Venturi flowmeter |
| CN107265563A (en) * | 2017-08-07 | 2017-10-20 | 西南石油大学 | A kind of tandem Venturi tube cavitation apparatus |
| CN208279362U (en) * | 2018-02-02 | 2018-12-25 | 西安交通大学 | A kind of venturi equipment of Hydrodynamic Cavitation with groove vortex groove |
-
2018
- 2018-02-02 CN CN201810106341.5A patent/CN108117147A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2261476A1 (en) * | 1999-02-12 | 2000-08-12 | Takashi Yamamoto | Apparatus for sewage purifying treatment |
| CN203955059U (en) * | 2014-05-29 | 2014-11-26 | 西安交通大学 | The venturi mixer that a kind of throat length is adjustable |
| CN105289347A (en) * | 2015-10-30 | 2016-02-03 | 西安交通大学 | Stepped venturi mixer |
| CN105675070A (en) * | 2016-03-28 | 2016-06-15 | 中国海洋石油总公司 | Irregular Venturi flowmeter and method for measuring gas-liquid phase flow in multiphase flow by utilization of irregular Venturi flowmeter |
| CN107265563A (en) * | 2017-08-07 | 2017-10-20 | 西南石油大学 | A kind of tandem Venturi tube cavitation apparatus |
| CN208279362U (en) * | 2018-02-02 | 2018-12-25 | 西安交通大学 | A kind of venturi equipment of Hydrodynamic Cavitation with groove vortex groove |
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