SYSTEM AND METHOD FOR CREATING CAVITATION IN A FLUID
20200270147 ยท 2020-08-27
Inventors
Cpc classification
B01F23/232
PERFORMING OPERATIONS; TRANSPORTING
B01F25/10
PERFORMING OPERATIONS; TRANSPORTING
International classification
C02F1/68
CHEMISTRY; METALLURGY
Abstract
A system for remediation of a fluid is provided. The system has an inlet configured to supply the fluid to a remediation channel, an injection port in fluid communication with the remediation channel, the injection port configured to inject at least one substance into the liquid, at least on air actuator in fluid communication with the remediation channel downstream from the injection port, the air actuator configured to generate a cavitation pocket, a vortex plate disposed within the remediation channel, and configured to create a swirl in the fluid and further increase the number of cavitation pockets within the liquid. A method of remediating a fluid is also provided herein.
Claims
1. A system for remediation of a fluid, the system comprising: an inlet configured to supply the fluid to a remediation channel; an injection port in fluid communication with the remediation channel, the injection port configured to inject at least one substance into the liquid; at least on air actuator in fluid communication with the remediation channel downstream from the injection port, the air actuator configured to generate a cavitation pocket; and a vortex plate disposed within the remediation channel, and configured to create a swirl in the fluid and further increase a number of cavitation pockets within the liquid.
2. The system of claim 1, wherein the injection ports comprise a plurality of injection ports, a first of the plurality of injection ports configured to inject a liquid or gaseous agent, a second of the plurality of injection ports configured to inject a dry agent into the remediation channel.
3. The system of claim 1, further comprising a flow regulation valve disposed within the remediation channel and in electronic communication with the air actuator, the flow regulation valve configured to optimize pressure to further increase the number of cavitation pockets within the liquid.
4. The system of claim 1, further comprising a pump in fluid communication with the inlet and configured force fluid into the remediation pathway.
5. The system of claim 1, further comprising at least one sensor array in electronic communication with a programmable logic controller, and configured to measure a plurality of fluid characteristics within the remediation channel.
6. The system of claim 5, wherein the fluid characteristics measured by at least one sensor comprises at least one of acoustic sensors, chemical sensors, flow and fluid velocity sensors, optical sensors, pressure sensors, density sensors, and thermal sensors.
7. The system of claim 5, wherein the at least one sensor array comprises a plurality of sensor arrays disposed in a plurality of positions along the remediation channel
8. The system of claim 1, further comprising a second air actuator in fluid communication with the remediation channel downstream from the first air actuator and configured to generate a second vortex and additional cavitation pockets.
9. The system of claim 1, wherein the remediation system is combinable with further remediation systems using a lifting system, the lifting system being attachable to the remediation system via connection members, and comprising: an actuator coupled to a lifting jack, the lifting jack configured to provide a motive force to ascend and descend during configuration; a side plate configured for connection to an inlet manifold on one end of the remediation system; and at least a crawler configured to provide a motive force in a horizontal direction.
10. The system of claim 5, further comprising a plurality of butterfly valves disposed on the remediation channel, and in electronic communication with the programmable logic controller, and configured to optimize fluid pressure prior to each cavitation event.
11. A method for remediation of a fluid, the method comprising: flowing a fluid through a remediation channel; injecting at least one substance into the fluid using an injection port in fluid communication with the remediation channel; introducing bursts of air into the fluid using air actuator in fluid communication with the remediation channel downstream from the injection port; generating a vortex and cavitation pocket in the fluid within the remediation channel; and inducing a second vortex in the fluid using a vortex plate disposed within the remediation channel, and configured to create a swirl in the fluid and further increase the number of cavitation pockets within the liquid.
12. The method of claim 11, further comprising injecting an agent into the fluid, wherein the injection ports comprise a plurality of injection ports, a first of the plurality of injection ports configured to inject a fluid or gaseous agent, a second of the plurality of injection ports configured to inject a dry agent into the remediation channel.
13. The method of claim 11, wherein the injection steps occur using a plurality of vessels in fluid communication with the injection ports and configured to supply the agents to the ports for injection into the remediation channel.
14. The method of claim 11, further comprising regulating a flow of the fluid using a flow regulation valve disposed within the remediation channel and in electronic communication with the air actuator, the flow regulation valve configured to optimize pressure to increase the number of cavitation pockets within the liquid.
15. The method of claim 11, further comprising sensing a plurality of fluid parameters using at least one sensor array in electronic communication with a programmable logic controller and configured to measure a plurality of liquid characteristics within the remediation channel.
16. The method of claim 15, wherein the liquid characteristics measured by the at least one sensor comprises at least one of acoustic sensors, chemical sensors, flow and fluid velocity sensors, optical sensors, pressure sensors, density sensors, and thermal sensors.
17. The method of claim 15, wherein the at least one sensor array comprises a plurality of sensor arrays disposed in a plurality of positions along the remediation channel.
18. The method of claim 11, further inducing a second vortex in the fluid using a second vortex impeller disposed within the remediation channel, and configured to create a swirl in the fluid and further increase the number of cavitation pockets within the liquid.
19. The method of claim 11, further comprising combining multiple cavitation systems using a lifting system, the lifting system being attachable to the remediation system via connection members, and comprising: an actuator coupled to a lifting jack, the lifting jack configured to provide a motive force to ascend and descend during configuration; a side plate configured for connection to an inlet manifold on one end of the remediation system; and at least a crawler configured to provide a motive force in a horizontal direction.
20. The method of claim 15, further comprising controlling fluid flow using a plurality of butterfly valves disposed on the remediation channel, and in electronic communication with the programmable logic controller, and configured to optimize fluid pressure prior to each cavitation event.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention is illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar elements and in which:
[0020]
[0021]
[0022]
[0023]
[0024]
[0025]
[0026] Unless otherwise indicated illustrations in the figures are not necessarily drawn to scale.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0027] The present invention is best understood by reference to the detailed figures and description set forth herein.
[0028] Embodiments of the invention are discussed below with reference to the Figures. However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes as the invention extends beyond these limited embodiments. For example, it should be appreciated that those skilled in the art will, in light of the teachings of the present invention, recognize a multiplicity of alternate and suitable approaches, depending upon the needs of the particular application, to implement the functionality of any given detail described herein, beyond the particular implementation choices in the following embodiments described and shown. That is, there are numerous modifications and variations of the invention that are too numerous to be listed but that all fit within the scope of the invention.
[0029] It is to be further understood that the present invention is not limited to the particular methodology, compounds, materials, manufacturing techniques, uses, and applications, described herein, as these may vary. It is also to be understood that the terminology used herein is used for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. It must be noted that as used herein and in the appended claims, the singular forms a, an, and the include the plural reference unless the context clearly dictates otherwise. Thus, for example, a reference to an element is a reference to one or more elements and includes equivalents thereof known to those skilled in the art. Similarly, for another example, a reference to a step or a means is a reference to one or more steps or means and may include sub-steps and subservient means. All conjunctions used are to be understood in the most inclusive sense possible. Thus, the word or should be understood as having the definition of a logical or rather than that of a logical exclusive or unless the context clearly necessitates otherwise. Structures described herein are to be understood also to refer to functional equivalents of such structures. Language that may be construed to express approximation should be so understood unless the context clearly dictates otherwise.
[0030] Unless defined otherwise, all technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which this invention belongs. Preferred methods, techniques, devices, and materials are described, although any methods, techniques, devices, or materials similar or equivalent to those described herein may be used in the practice or testing of the present invention. Structures described herein are to be understood also to refer to functional equivalents of such structures. The present invention will now be described in detail with reference to embodiments thereof as illustrated in the accompanying drawings.
[0031] Those skilled in the art will readily recognize, in accordance with the teachings of the present invention, that any of the foregoing steps and/or system modules may be suitably replaced, reordered, removed and additional steps and/or system modules may be inserted depending upon the needs of the particular application, and that the systems of the foregoing embodiments may be implemented using any of a wide variety of suitable processes and system modules, and is not limited to any particular computer hardware, software, middleware, firmware, microcode and the like. For any method steps described in the present application that can be carried out on a computing machine, a typical computer system can, when appropriately configured or designed, serve as a computer system in which those aspects of the invention may be embodied.
[0032] While exemplary embodiments of the present invention will be described with reference to certain industries in which cavitational finds use, a skilled artisan will realize that embodiments of the invention are applicable to any type application in which cavitation is beneficial.
[0033] The system and method of the present invention create hydrodynamic cavitation in fluids. The detailed elements and specific embodiments of the present decontamination system can be best appreciated by further understanding the cavitation phenomenon employed to drive the physical and chemical decontamination reactions. Due to large pressure drop in flow, microscopic bubbles grow in the regions of pressure drop and collapse in the regions of pressure rise. When subjected to cavitation, various molecules in the liquid undergo dissociation and form free radicals, which are powerful oxidizing or reducing agents. For example, in aqueous liquids, the dissociation of water to form hydroxyl radicals occurs under intense cavitation due to the growth and collapse of microscopic bubbles. Analogous dissociation of other molecules may occur as a result of cavitation in aqueous solutions as well as in non-aqueous liquids and solutions, producing radicals which similarly aid in the decontamination reactions described herein. Moreover, cavitation generated in any liquid environment will result in the physical disruption of contaminants, without regard to the generation of particular radicals. The methods and systems of this invention will be applicable for all fluid environments comprising contaminants susceptible to decomposition via the physical and/or chemical effects of the cavitation employed.
[0034] Referring now to
[0035] Beginning now at main inlet 102, the system comprises a sensor housing 106, a first valve 108, a plurality of injector coils 110, an additive port 112, and a flow meter 114. As used herein, this area of the system may be referred to as pre-cavitation zone or mixing zone. The system may further comprise a first air injector 116 and a second sensor array 118, followed by vortex plate 146 and a second air injector 120. Additional sensors (e.g., pressure sensor 124) and a second valve 122 are also shown. The remediation pathway 101 then continues to the outlet 104. As used herein, this area of the system may be referred to herein as cavitation zone 144.
[0036] As can be seen in
[0037] Referring still to
[0038] In embodiments of the present invention, the sensor housing 108 may comprise mechanical sensors, flow meters to measure flow rate and pressure gauges, electronic sensors to measure a variety of parameters such as pressure, specific gravity, the presence of liquid (water level meters and interface probes), pH, temperature, and conductivity, and analytical sensors to measure chemical parameters such as contaminant concentrations. Some examples of analytical sensors include pH probes and optical sensors used for colorimetric measurement. Control systems that work in conjunction with sensors comprise PLCs and other electronic microprocessor devices. Control systems are able to receive sensory inputs, process information, and trigger specific actions. These will be discussed in greater detail with relation to
[0039] Referring still to
[0040] Exemplary compounds include compounds that may comprise halogen salts such as flourine, chlorine, bromine, iodine, sulphate salts, sodium, potassium and the like, introduced as solids or dissolved in water or some other solvent. Liquid feed stocks such as ozone, hydrogen peroxide, peroxyacids, brine solutions, chlorine solutions, ammonia solutions, amines, aldehydes, keytones, methanols, chelating agents, dispersing agents, nitrides, nitrates, sulfides, sulfates, and the like, dissolved in water or some other solvent may be employed. Further, gaseous feed stocks such as ozone, air, chlorine dioxide, oxygen, carbon dioxide, carbon monoxide, argon, krypton, bromine, iodine and the like may be employed, each of the foregoing in predetermined amounts based on the fluid remediation project goals.
[0041] For solid compounds, a dry agents lead 112 is shown. Injection of dry agents such as those discussed above may occur via the valve 142.
[0042] The ports for introducing the agent into the channel 101 may introduce the oxidizing agents into the flow-through channel at or near the local constriction of flow. In the illustrated example, the port may be configured to permit the introduction of the oxidizing agent into the fluid in the local constriction of flow. It will be appreciated that the ports may be configured to introduce oxidizing agents into the stream 101 not only at the local constriction of flow, but along an area between and including the local constriction of flow and the area into the cavitation zone, where cavitation bubbles are formed.
[0043] Still with reference to
[0044] Entering into cavitation zone 144, the fluid undergoes varying degrees of cavitation and remediation. The cavitation zone may comprise a first air injector 116 configured to inject air into the stream 101, a reactor plate 146, a second air injector 120, and control valves 124 to control the proportion of flow through the cavitation zone and to control the average dwell time of fluid in the line/stream 101.
[0045] The first and second air injectors are configured to induce cavitation into the fluid to form vapor cavities in a liquid (i.e. small liquid-free zones, bubbles or voids), which occurs when the fluid is subjected to rapid changes of pressure that cause the formation of cavities where the pressure is relatively low. In this way, the injectors are used to enhance chemical reactions and propagate reactions due to free radicals formation in the process due to disassociation of vapors trapped in the cavitating bubbles.
[0046] A reactor plate 146 is disposed within the line 101 between the first and second air injectors. The reactor plate, discussed in greater detail with relation to
[0047] An additional valve 124, e.g., butterfly valve, is disposed in the line to drop the head pressure when needed for egress of the fluid to outlet 104. The valve 124, like other valves in the system, is communicably coupled to the PLC such that it is fully autonomous.
[0048] Now with reference to
[0049] A vortex generation section 204 is disposed inwardly toward the center of the plate 146, and comprises a forward edge portion which slants first upwardly and rearwardly, and then curves in a continuous convex rearward curve, having valleys 208 and peaks 210 that blend into a substantially horizontal rearwardly extending upper edge portion. These peaks may be referred to as vanes. This formation ensures that the bubbles begin forming at a size small enough to create a long range of hydrophobic forces that promotes bubble/particle attachment, and creates optimum size and number of bubbles in a continually changing mixing environment. The plate 146 enhances the amount of hydroxyl radicals generally may be capable of degrading and/or oxidizing organic compounds in a fluid, and results in significant amounts of oxidizing agents contained within and/or associated with the cavitation bubbles.
[0050] The reactor plate 146 may be formed of a material that is relatively impervious to cavitation's, such as a metal alloy, or in some embodiments, a resilient elastomeric material. The reactor plate 146 may be embodied in a variety of different shapes and configurations. For example, the plate may be conically shaped, including a conically-shaped surface that induces a vortex, or may be fully cyclical as shown. It should be appreciated other shapes may be employed as well to a varying degree.
[0051] Referring now to
[0052] Mass inlet 302 is sized for high throughput and is connected to, and in fluid communication with, an input manifold 306. The input manifold 306 is a hydraulic manifold that is configured to regulate fluid flow into the systems stacked system 100. The input hydraulic manifold 306 comprises a plurality of hydraulic valves and pathways connected to each other. It is the various combinations of states of these valves that allow for fluid behavior control in the manifold. As one example of many known functions of manifold, the input manifold 316 is configured to ensure approximately equal amounts of fluid are diverted to each of the stacked systems to optimize throughput. The input manifold 316, in some embodiments, may be fitted with a sensor array similar to the sensor array of
[0053] Mid-input connector lines 308.sup.i-308.sup.iiiii connect the manifold 306 to each of the remediation systems 100.sup.i100.sup.iiiii, respectively, and fluid remediation path 101 within the systems (see
[0054] Mid-output connector lines 310.sup.i-iiiii are in fluid communication with an output manifold 322. The output manifold, like the input manifold 306 is a hydraulic manifold, but in this case, is configured to regulate fluid flow outbound the systems stacked system 100. The output hydraulic manifold 322 comprises a plurality of hydraulic valves and pathways connected to each other. It is the various combinations of states of these valves that allow for fluid behavior control in the manifold. As one example of many known functions of manifold, the output manifold 322 is configured to ensure optimized mixing of fluids prior to egress from the systems via mass output 318. The output manifold 322, in some embodiments, may be fitted with a sensor array similar to the sensor array of
[0055] In operation, in the system of
[0056] Referring still to
[0057] The mechanical lifting system comprises base 320, actuator 324, legs 316, which may be connected to a lifting jack 336 configured to provide a motive force to ascend and descend during stack configuration. It is noted that for the weight supported by the base may be in the order of 10-250 tons.
[0058] Referring still to
[0059] Referring now to
[0060] As shown in
[0061] Referring still to
[0062] An additional sensor array 412 is provided for testing and gathering data on the treated fluid, and to ensure proper pressures and flow rate may be provided. Should the fluid properties be outside of a predetermined range another valve for 16 is provided shoe stop the flow of fluid.
[0063] First air injector 116 is in communication with an additional controller 406, which is in turn, in communication with PLC 402. In an optional embodiment of the present invention, the PLC 402 is configured to control air pressure based on the degree of cavitation required. The controller 406 is also in communication with the reactor plate 146 and a baffle (not shown) to rotate and tilt the reactor plate to vary the degrees of cavitation. Like the first air injector, a second air injector 120 and control valves 124 are in communication with the controller 406 for similar purposes.
[0064] Still with reference to
[0065] The first and second air injectors are configured to induce cavitation into the fluid to form vapor cavities in a liquid (i.e. small liquid-free zones, bubbles or voids), which occurs when the fluid is subjected to rapid changes of pressure that cause the formation of cavities where the pressure is relatively low. In this way, the injectors are used to enhance chemical reactions and propagate reactions due to free radical formation in the process due to disassociation of vapors trapped in the cavitating bubbles.
[0066] A reactor plate 146 is disposed within the line 101 between the first and second air injectors and is communication with the PLC 402, and the PLC 402 is configured to tilt the reactor plate 146 in various directions (e.g., 15 degrees). The reactor plate, discussed in greater with relation to
[0067] An additional valve 124, e.g., butterfly valve, is disposed in the line to drop the head pressure when needed for egress of the fluid to outlet 104. The valve 124, like other valves in the system, is communicably coupled to the PLC such that it is fully autonomous.
[0068]
[0069] The method may further comprise injecting at least one agent into the fluid using an injection port in fluid communication with the remediation channel, step 504.
[0070] The method may further comprise introducing bursts of air into the fluid using air actuator in fluid communication with the remediation channel downstream from the injection port, step 506.
[0071] The method may further comprise flowing fluid through a reactor plate to create a cortex, step 508.
[0072] The method may further comprise introducing bursts of air into the fluid using air actuator at a second location in fluid communication with the remediation channel downstream from the injection port, step 510.
[0073] The method may further comprise generating at least one and more often a plurality of vortices vortex and cavitation pocket in the fluid within the remediation channel step 512.
[0074] The method may further comprise regulating a flow of the fluid using a flow regulation valve disposed within the remediation channel and in electronic communication with the air actuator, the flow regulation valve configured to optimize pressure to increase the number of cavitation pockets within the liquid, step 512, and outputting the remediated fluid step 516.
EXAMPLE
[0075] The example is for the purpose of illustrating an embodiment and is not to be construed as a limitation.
[0076] Example 1,
[0077] A shown in
[0078] While the present invention has been described in connection with what are presently considered to be the most practical and preferred embodiments, it is to be understood that the present invention is not limited to these herein disclosed embodiments. Rather, the present invention is intended to cover all of the various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
[0079] Although specific features of various embodiments of the invention may be shown in some drawings and not in others, this is for convenience only. In accordance with the principles of the invention, the feature(s) of one drawing may be combined with any or all of the features in any of the other drawings. The words including, comprising, having, and with as used herein are to be interpreted broadly and comprehensively and are not limited to any physical interconnection. Moreover, any embodiments disclosed herein are not to be interpreted as the only possible embodiments. Rather, modifications and other embodiments are intended to be included within the scope of the appended claims.