CN100335150C - Vortex cavitation device - Google Patents
Vortex cavitation device Download PDFInfo
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- CN100335150C CN100335150C CN 200510099352 CN200510099352A CN100335150C CN 100335150 C CN100335150 C CN 100335150C CN 200510099352 CN200510099352 CN 200510099352 CN 200510099352 A CN200510099352 A CN 200510099352A CN 100335150 C CN100335150 C CN 100335150C
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Abstract
The present invention relates to a vortex cavitator used in the technical field of chemical separation, which comprises a liquid inlet tube, a paraboloidal outer conical body, a slit circular disk and a flow-guiding plate and a nozzle. The present invention is characterized in that the liquid inlet tube and the nozzle are respectively fixed to the top and the bottom of the paraboloidal outer conical body, the slit circular disk is fixed to the paraboloidal outer conical body, and a slit is formed on the slit circular disk; the flow-guiding plate is fixed to the slit circular disk in the slit position, and a plurality of radial slits re evenly and symmetrically distributed along the circumference of the slit circular disk; the slit circular disk is fixed to the paraboloidal outer conical body and is 1/4 to 3/4 the length of the conical body away from the outer conical body. The present invention is used for dewatering or removing oil from various kinds of water-containing emulsified oil or emulsified oil-containing wastewater. The present invention has the advantages of favorable emulsion breaking effect, simple equipment structure, large treating capacity of oil and water emulsion, and low equipment manufacturing cost. Chemical emulsion breaking agents are not added, or a few chemical emulsion breaking agents are added in the operation process of the whole equipment, so the present invention has the advantages of little equipment investment and low operation cost.
Description
The present invention by number of patent application is: 200410066214.5, and name of patent application is: " convolution cavitation device ", patent application is artificial: Shanghai Communications University, patent application day is: the patent on September 9th, 2004 is divided an application.
Technical field
The present invention relates to the device in a kind of equipment of water-oil separating, specifically is a kind of convolution cavitation device, is used for technical field of chemical separation.
Background technology
The crude oil of extraction great majority mix output with natural gas and salt solution from oil well, and " crude oil " that obtains after gs-oil separator is isolated natural gas and free water generally remains Water-In-Oil (W/O) the type emulsion that contains a certain amount of salt and water.The existence of salt and water can increase the load of pump, pipeline and storage tank in the crude oil, and can cause the corrosion and the fouling of equipment and pipeline and make catalyst poisoning, therefore crude oil will be handled through desalting and dewatering earlier in conveying and first being processed, make wherein salt content and water content reach certain requirement.The oil recovery of petroleum industry, oil refining, store oil transportation and petro chemical industry, mechanical industry and food processing industry all can produce oily waste water, these oily waste waters have a large portion to exist with the form of oil emulsion, and to have suitable stability more difficult because of it.
Find by literature search, Chinese patent publication number: CN1286130, patent name: a kind of filter tank for separating oil from water, this device by tank body and on water inlet, delivery port and a jar inner filtration filler formed, wherein in the tank body heater is set, oil drain out is set on the tank body, and filter packing is formed around accumulation by meagre long narrow sheet metal coil.Owing in the process of this equipment of use, need periodically to heat the grease that is adsorbed with eliminating, so this equipment exists the shortcoming of complicated operating process to adsorbing saturated filtrate.
Summary of the invention
The objective of the invention is to, at above-mentioned the deficiencies in the prior art, a kind of convolution cavitation device is proposed, make its equipment that is used for realizing containing water-emulsified oil or emulsified oily watewater breakdown of emulsion, can and not add or add less that water-emulsified oil or emulsified oily watewater carry out low cost and high efficiency breakdown of emulsion is handled to containing under the condition of chemical demulsifier in lower temperature.
The present invention is achieved by the following technical solutions, and the present invention has three kinds of different structures:
The convolution cavitation device of first kind of structure is made up of feed tube, three coaxial inner cylinders, middle cylinder, outer cylinder and nozzles, wherein outer cylinder and middle cylinder have their tops separately and common bottom, and inner cylinder is a hollow cylinder, inlet is alone respectively arranged in the top center position of middle cylinder and outer cylinder, middle cylinder and outer cylinder have common bottom, their bottom is connected with the entrance point of nozzle, and inner cylinder links to each other with middle cylinder with four radially equally distributed crossbeams.A plurality of tangential slits are arranged on the wall of the middle cylinder first half.
The convolution cavitation device of second kind of structure is made up of feed tube, paraboloidal cone, slit disk, deflector and nozzle.Feed tube and nozzle are separately fixed at the top and the bottom of paraboloidal cone, the slit disk is fixed on the paraboloidal cone on the position of its 1/10～3/4 times of cone height in top, a plurality of radial slit that distribute symmetrically along circumference are arranged on the slit disk, and deflector is fixed on the slit disk in the slit place.
The convolution cavitation device of the third structure is made up of feed tube, infundibulate inner cone, paraboloidal Outer Taper and nozzle.Feed tube and nozzle are separately fixed at the top and the bottom of paraboloidal Outer Taper, the conical arrival end of infundibulate inner cone is fixed on the paraboloidal Outer Taper on the position of its 1/10～1/2 times of cone height in top, and the pipe-type outlet end of infundibulate inner cone is positioned on the position of paraboloidal Outer Taper bottom top 0.2～2cm.
The present invention cooperates with storage tank, pump, pressure gauge, dashpot and oily-water seperating equipment etc., constitute the equipment of a cover water-oil separating, utilize the present invention to carry out breakdown of emulsion to containing water-emulsified oil or emulsified oily watewater, when the emulsion that contains water-emulsified oil or emulsified oily watewater through the pump pressurization with certain pressure (0.1～1MPa) and flow velocity when of the present invention, emulsion has formed high-speed eddy in inside of the present invention.The control operation condition makes the eddy current pressure inside be lower than the saturated vapor pressure of emulsion continuous phase itself (as oil phase or water) or low boiling component wherein (as certain low boiling component in the crude oil), the continuous phase (as oil phase or water) of emulsion vaporization rapidly in the eddy current, being dissolved in little gas nuclear (as nitrogen and oxygen etc.) in the emulsion continuous phase simultaneously also can overflow and form bubble or cavity, the steam of continuous phase condenses and forms the minimum cavitation bubble of internal pressure of One's name is legion, when emulsion entered atmospheric area by the high-speed eddy state, these cavitation bubbles are collapse rapidly under the effect of the ambient pressure that increases suddenly.(be about 10 because the time compole that this process takes place is short
-6～10
-8S), be similar to adiabatic process, therefore produced instantaneous high temperature and high pressure in the continuous phase inside of emulsion, follow a large amount of micro-waves simultaneously and form high-speed micro-jet, these factors make the fine droplet coalescence of emulsion decentralized photo grow up and separate out from continuous phase, and then reach the purpose of breakdown of emulsion.When emulsion formed high-speed eddy in inside of the present invention, the small emulsion droplet that reduces to make the emulsion decentralized photo (as water droplet or oil droplet) of pressure expanded, and has also promoted breakdown of emulsion.Contain water-emulsified oil or emulsified oily watewater through entering again in the oily-water seperating equipment behind the breakdown of emulsion of the present invention, utilize that the profit two-phase goes out the difference of open height and realizes that oil phase and the automatic of water separate in this device.The present invention both had been applicable to and also had been suitable for handling all kinds of emulsified oily watewaters by product oils such as handling moisture emulsified crude oil, aviation fuels, general oil product and special oil product.
Adopt the present invention all kinds ofly to contain water-emulsified oil or emulsified oily watewater dewaters or oil removal treatment to above-mentioned, not only has the good advantage of demulsification, simultaneously, present device is simple in structure,, equipment big to the treating capacity of water-oil emulsion cheap for manufacturing cost, complete equipment can not add in running or add chemical demulsifier less, thereby has the little and low advantage of operating cost of equipment investment.
Description of drawings
Fig. 1 is a structural representation of the present invention ()
Fig. 2 is a structural representation of the present invention (two)
Fig. 3 is an A-A cutaway view shown in Figure 2
Fig. 4 structural representation of the present invention (three)
The specific embodiment
As shown in Figure 1, the present invention includes: feed tube 1, three coaxial inner cylinders 2, middle cylinder 3, outer cylinder 4 and outlet sections 5, wherein outer cylinder 4 and middle cylinder 3 have their tops separately and common bottom, and inner cylinder 2 is a hollow cylinder, inlet is alone respectively arranged in the top center position of middle cylinder 3 and outer cylinder 4, middle cylinder 3 and outer cylinder 4 have common bottom, their bottom is connected with the entrance point of nozzle 5, and inner cylinder 2 links to each other with middle cylinder 3 with four radially equally distributed crossbeams.A plurality of tangential slits are arranged on the wall of middle cylinder 3 first halves.After containing water-emulsified oil or emulsified oily watewater pressurization enter the outer cylinder 4 of this convolution cavitation device with certain pressure and flow velocity through pump 2, wherein a part of fluid flows into inner cylinder 2 from the perforate of the top of middle cylinder 3, form axial jet, the zone during the remainder of fluid flows into by the tangential slit on middle cylinder 3 walls between cylinder 3 and the inner cylinder 2 forms eddy current.The control operation condition makes eddy current or jet pressure inside be lower than the saturated vapor pressure of emulsion continuous phase itself or low boiling component wherein, makes the inside of emulsion continuous phase produce the cavitation bubble of One's name is legion.When fluid is leaked by nozzle 5 and enters in the dashpot 5, these cavitation bubbles are collapse rapidly under the effect of the ambient pressure that increases suddenly, produce instantaneous HTHP, micro-wave and high-speed micro-jet, make fine droplet coalescence in the emulsion decentralized photo grow up and from continuous phase, separate out.
As Fig. 2, shown in Figure 3, perhaps the present invention includes: feed tube 6, paraboloidal cone 7, slit disk 8, deflector 9 and nozzle 10.Feed tube 6 and nozzle 10 are separately fixed at the top and the bottom of paraboloidal cone 7, slit disk 8 is fixed on paraboloidal cone 7 on the position of its 1/4～3/4 times of cone height in top, a plurality of radial slit that distribute symmetrically along circumference are arranged on the slit disk 8, and deflector 9 is fixed on the slit disk 8 in the slit place.When contain water-emulsified oil or emulsified oily watewater flow into paraboloidal cones 7 from the feed tube 6 of convolution cavitation device with certain pressure and flow velocity through pump 2 pressurization top through slit disk 8 from its slit along deflector 9 when flowing to the bottom of paraboloidal cone 7, its pressure inside reduces the generation eddy current suddenly.When fluid flow to the less nozzle 10 of section, the eddy current pressure inside further reduced.The control operation condition makes the pressure in the eddy current be lower than the saturated vapor pressure of emulsion continuous phase itself or low boiling component wherein, makes the cavitation bubble of the inside generation One's name is legion of emulsion continuous phase.When the nozzle 10 that flows through convolution cavitation device when fluid enters in the dashpot, these cavitation bubbles are collapse rapidly under the effect of the ambient pressure that increases suddenly, produce instantaneous HTHP, micro-wave and high-speed micro-jet, make the fine droplet coalescence of decentralized photo in the emulsion grow up and from continuous phase, separate out.
As shown in Figure 4, perhaps the present invention includes: feed tube 11, paraboloidal Outer Taper 12, infundibulate inner cone 13 and nozzle 14, feed tube 11 and nozzle 14 are separately fixed at the top and the bottom of paraboloidal Outer Taper 12, the conical arrival end of infundibulate inner cone 13 is fixed on paraboloidal Outer Taper 12 on the position of its 1/4～1/2 times of Outer Taper height in top, and the pipe-type outlet end of infundibulate inner cone 13 is positioned on the position of top, paraboloidal Outer Taper 12 bottoms 0.2～2cm.When the first half that flows into paraboloidal Outer Taper 12 with certain pressure and flow velocity from the feed tube 11 of convolution cavitation device through pump pressurization when emulsion entered infundibulate inner cone 13 again and arrives the tiny pipe-type outlet end of its calibers, its pressure inside reduced the formation eddy current suddenly.The control operation condition makes the pressure in the eddy current be lower than the saturated vapor pressure of emulsion continuous phase itself or low boiling component wherein, makes the cavitation bubble of the inside generation One's name is legion of emulsion continuous phase.When fluid is flow through nozzle 14 and is entered in the dashpot by the pipe-type outlet end of infundibulate inner cone 13, these cavitation bubbles are collapse rapidly under the effect of the ambient pressure that increases suddenly, produce instantaneous HTHP, micro-wave and high-speed micro-jet, make the fine droplet coalescence of decentralized photo in the emulsion grow up and from continuous phase, separate out.
Claims (2)
1, a kind of convolution cavitation device, comprise: feed tube (6), paraboloidal cone (7), slit disk (8), deflector (9) and nozzle (10), it is characterized in that, feed tube (6) and nozzle (10) are separately fixed at the top and the bottom of paraboloidal cone (7), slit disk (8) is fixed on the paraboloidal cone (7), the slit disk has slit on (8), and deflector (9) is fixed on the slit disk (8) in the slit place.
2, convolution cavitation device according to claim 1, it is characterized in that, a plurality of radial slit that distribute symmetrically along circumference are arranged on the slit disk (8), and slit disk (8) is fixed on paraboloidal cone (7) on the position of its 1/4～3/4 times of cone height in top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510099352 CN100335150C (en) | 2004-09-09 | 2004-09-09 | Vortex cavitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510099352 CN100335150C (en) | 2004-09-09 | 2004-09-09 | Vortex cavitation device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410066214 Division CN1241668C (en) | 2004-09-09 | 2004-09-09 | Convolution cavitation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1762530A CN1762530A (en) | 2006-04-26 |
| CN100335150C true CN100335150C (en) | 2007-09-05 |
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ID=36746982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510099352 Expired - Fee Related CN100335150C (en) | 2004-09-09 | 2004-09-09 | Vortex cavitation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100335150C (en) |
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2004
- 2004-09-09 CN CN 200510099352 patent/CN100335150C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1762530A (en) | 2006-04-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070905 Termination date: 20100909 |