FI20195196A1 - A mixing and dissolving tube - Google Patents
A mixing and dissolving tube Download PDFInfo
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- FI20195196A1 FI20195196A1 FI20195196A FI20195196A FI20195196A1 FI 20195196 A1 FI20195196 A1 FI 20195196A1 FI 20195196 A FI20195196 A FI 20195196A FI 20195196 A FI20195196 A FI 20195196A FI 20195196 A1 FI20195196 A1 FI 20195196A1
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- flow
- mixing
- nozzle head
- tube
- dissolving
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Classifications
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- 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
- B01F25/12—Interdigital mixers, i.e. the substances to be mixed are divided in sub-streams which are rearranged in an interdigital or interspersed manner
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- 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
- B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/20—Dissolving using flow mixing
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- 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
- B01F25/3123—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements
- B01F25/31233—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements used successively
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- 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
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
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- 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
- B01F25/3125—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characteristics of the Venturi parts
- B01F25/31252—Nozzles
- B01F25/312522—Profiled, grooved, ribbed nozzle, or being provided with baffles
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- 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
- B01F25/315—Injector mixers in conduits or tubes through which the main component flows wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component
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- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
- B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
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- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
- B01F25/43161—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod composed of consecutive sections of flat pieces of material
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- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4335—Mixers with a converging-diverging cross-section
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- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4338—Mixers with a succession of converging-diverging cross-sections, i.e. undulating cross-section
Abstract
A mixing and dissolving tube comprises a nozzle head (101) and a tube element (102) surrounding the nozzle head. A Wall of the tube element comprises at least one opening (103) for passing a side flow subject to suction caused by a main flow. The tube element comprises a throttle section (104) located after the nozzle head in a flow direction. The mixing and dissolving tube further comprises at least one flow guide element (105, 106) for generating a two-headed vortex flow after the throttle section in the flow direction. The nozzle head accelerates the main flow and creates the suction that accelerates the side flow. The throttle section mixes the main and side flows to produce an even mixture and slows down the accelerated flow. The flow guide element improves the mixing, and the two-headed vortex flow reduces turbulences and losses in piping compared to a straight streamed flow.
Description
A mixing and dissolving tube Field of the disclosure The disclosure relates to a mixing and dissolving tube for mixing and/or dissolving various ingredients such as gases, liquids, and/or powders.
Background A mixing and dissolving tube can be used as a mixer and/or dissolver in many applications such as for example treatment of various kinds of water such as e.g. fresh water and waste water, mixing and/or dissolving ingredients, and forming a composition of air and fuel for combustion.
A mixing and dissolving tube for purposes of the kind mentioned above comprises typically a nozzle head for a main flow and a tube element surrounding the nozzle head, wherein a wall of the tube element comprises at least one opening for passing a side flow subject to a suction effect caused by the main flow.
The nozzle head is shaped to constitute a main channel for the main flow and an outer surface of the nozzle head constitutes, together with an inner surface of the tube element, a side channel for the side flow.
The main flow and the side flow get in contact with each other in a part of the tube element that is after the nozzle head in the flow direction.
When designing a mixing and dissolving tube for purposes of the kind mentioned o 20 above, typical design targets are to achieve an effective mixing between ingredients S of the main flow and the side flow and to minimize energy losses in piping which se receives a mixed flow from the mixing and dissolving tube.
Furthermore, it is 0 advantageous if the suction effect caused by the main flow is so effective that no z external energy is needed for supplying the side flow into the mixing and dissolving c 25 tube.
Yet furthermore, a mixing and dissolving tube should be cost-effective to 2 manufacture. > S In view of the above-mentioned design targets, there is still a need for new designs of mixing and dissolving tubes that can be used, for example but not necessarily, as mixers and/or dissolvers.
Summary The following presents a simplified summary in order to provide a basic understanding of some embodiments of the invention. The summary is not an extensive overview of the invention. It is neither intended to identify key or critical elements of the invention nor to delineate the scope of the invention. The following summary merely presents some concepts of the invention in a simplified form as a prelude to a more detailed description of exemplifying embodiments of the invention. In this document, the word “geometric” when used as a prefix means a geometric concept that is not necessarily a part of any physical object. The geometric concept can be for example a geometric point, a straight or curved geometric line, a geometric plane, a non-planar geometric surface, a geometric space, or any other geometric entity that is zero, one, two, or three dimensional. In accordance with the invention, there is provided a new mixing and dissolving tube that can be used, for example but not necessarily, as a mixer and/or dissolver in many applications such as treatment of various kinds of water such as e.g. fresh water and waste water, mixing and/or dissolving ingredients, and forming a composition of air and fuel for combustion. A mixing and dissolving tube according to the invention comprises: - anozzle head for a main flow, and o 20 - a tube element surrounding the nozzle head, a wall of the tube element > comprising at least one opening for passing a side flow subject to a suction g effect caused by the main flow,
O - The above-mentioned tube element comprises a throttle section located after the E nozzle head in a flow direction, and the mixing and dissolving tube further comprises & 25 at least one flow guide element for generating a two-headed vortex flow inside the 3 tube element and after the throttle section in the flow direction.
N The nozzle head accelerates the main flow and creates the suction effect by kinetic energy of the main flow, wherein the suction effect accelerates the side flow. The throttle section mixes the accelerated main flow and the side flow thus producing a substantially even mixture of the ingredients of the main and side flows and slows down the accelerated flow without causing disruptive turbulences. The at least one flow guide element improves the mixing and/or dissolving by an impulse effect taking place when ingredients of the main flow and the side flow hit surfaces of the flow guide element. At the same time, the at least one flow guide element generates the two-headed vortex flow that reduces turbulences and losses in piping compared to a straight streamed flow. The mixing and/or dissolving is finalized in the two-headed vortex flow caused by the at least one flow guide element. Furthermore, the two- headed vortex flow provides advantageous conditions for chemical reactions between ingredients of the main flow and the side flow. In a mixing and dissolving tube according to an exemplifying and non-limiting embodiment, the nozzle head of the mixing and dissolving tube is shaped to constitute two or more main channels for the main flow and an outer surface of the nozzle head constitutes, together with an inner surface of the tube element, one or more side channels for the side flow so that a cross-sectional flow area of the nozzle head decreases towards an end of the nozzle head at which the main flow exits the nozzle head and each side channel is at least partly between adjacent ones of the main channels. This multichannel arrangement provides an efficient suction effect and an efficient mixing of ingredients of the main flow and the side flow. Exemplifying and non-limiting embodiments are described in accompanied dependent claims. 2 N Various exemplifying and non-limiting embodiments both as to constructions and to 3 methods of operation, together with additional objects and advantages thereof, will 2 25 be best understood from the following description of specific exemplifying = embodiments when read in connection with the accompanying drawings.
O 2 The verbs “to comprise” and “to include” are used in this document as open 2 limitations that neither exclude nor require the existence of also un-recited features. N The features recited in the accompanied dependent claims are mutually freely combinable unless otherwise explicitly stated. Furthermore, it is to be understood that the use of “a” or “an”, i.e. a singular form, throughout this document does as such not exclude a plurality. Brief description of the figures Exemplifying and non-limiting embodiments and their advantages are explained in greater details below in the sense of examples and with reference to the accompanying drawings, in which: figures 1a and 1b illustrate a mixing and dissolving tube according to an exemplifying and non-limiting embodiment, figures 2a and 2b illustrate a mixing and dissolving tube according to another exemplifying and non-limiting embodiment, figure 3 illustrates a flow guide element of a mixing and dissolving tube according to an exemplifying and non-limiting embodiment, and figures 4, 5, and 6 illustrate nozzle heads of mixing and dissolving tubes according to exemplifying and non-limiting embodiments. Description of exemplifying embodiments The specific examples provided in the description below should not be construed as limiting the scope and/or the applicability of the accompanied claims. Lists and groups of examples provided in the description are not exhaustive unless otherwise o explicitly stated. g 0 20 Figures 1a and 1b illustrate a mixing and dissolving tube according to an
O LO exemplifying and non-limiting embodiment. The mixing and dissolving tube I comprises a nozzle head 101 for a main flow and a tube element 102 surrounding Ao * the nozzle head. In figure 1a, the tube element 102 is presented as a section view
O > where the geometric section plane is parallel with the xz-plane of a coordinate
LO 2 25 — system 199. In figure 1b, the tube element 102 is presented as a section view where N the geometric section plane is parallel with the yz-plane of the coordinate system
199. Figure 1b shows also a view of a section taken along a line A-A that is near to the end of the nozzle head 101. The geometric section plane related to the section
A-A is parallel with the xy-plane of the coordinate system 199. A wall of the tube element 102 comprises openings 103 for passing a side flow subject to a suction effect caused by the main flow. In figure 1b, the main flow is depicted with an arrow 120 and the side flow is depicted with arrows 121. The main flow may comprise 5 liquid or gas, and the side flow may comprise liquid, gas, powder, or a mixture of these. External energy can be used if needed for feeding the side flow into the mixing and dissolving tube. The nozzle head 101 can be made of e.g. metal or plastic. The metal can be e.g. stainless steel. Correspondingly, the tube element 102 can be made of e.g. stainless steel or some other suitable metal, or plastic. The tube element 102 comprises a throttle section 104 that is located after the nozzle head 101 in the flow direction. In this exemplifying case, the throttle section 104 comprises a single throttle 107. The nozzle head 101 accelerates the main flow and creates the suction effect by kinetic energy of the main flow, wherein the suction effect accelerates the side flow. The throttle section 104 mixes the accelerated main flow and the side flow thus producing a substantially even mixture of the ingredients of the main and side flows. Furthermore, the throttle section 104 slows down the accelerated flow without causing disruptive turbulences. The mixing and dissolving tube further comprises flow guide elements 105 and 106 that are inside the tube element 102 and successively in the flow direction. The flow guide elements 105 and 106 are suitable for generating two-headed flow vortices so that the two-headed flow vortices have a same handedness, i.e. both the flow guide elements 105 and 106 make the flow to rotate in a same rotational direction. = Thus, the flow guide elements 105 and 106 generate a two-headed vortex flow that N is depicted with arrow-headed curves 122 and 123 in figure 1a. The two-headed 7 25 vortex flow reduces turbulences and losses in piping compared to a straight > streamed flow. Figure 1a shows a magnification of the flow guide element 106. The E flow guide elements 105 and 106 improve the mixing and/or dissolving by an 8 impulse effect taking place when ingredients of the main flow and the side flow hit 3 surfaces of the flow guide elements 105 and 106. The mixing and/or dissolving is N 30 finalized in the two-headed vortex flow caused by the flow guide elements 105 and
106. Furthermore, the two-headed vortex flow provides advantageous conditions for chemical reactions between ingredients of the main flow and the side flow.
Each of the flow guide elements 105 and 106 is a plate constituting two substantially planar guide plates and an isthmus connecting the guide plates so that the guide plates are twisted with respect to each other so that the flow guide element has an X-shaped projection on a geometric plane that is perpendicular to both the guide plates and non-intersecting with the longitudinal direction of the tube element 102. The longitudinal direction of the tube element 102 is the z-direction of the coordinate system 199. In figures 1a and 1b, the guide plates of the flow guide element 106 are denoted with references 109 and 110 and the isthmus of the flow guide element 106 is denoted with a reference 111. The above-mentioned geometric plane on which the flow guide elements 105 and 106 have the X-shaped projections is parallel with the xz-plane of the coordinate system 199. As shown in figure 1b, an edge of each guide plate which is against an inner surface of the tube element 102 has a shape of an arc of an ellipse so that the above-mentioned edge fits the inner surface of the tube element 102 when the guide plate under consideration is oblique with respect tothe longitudinal direction of the tube element 102. It is assumed here that the tube element 102 has a circular cross-sectional shape, but it is also possible to have a non-circular cross-sectional shape. Each of the flow guide elements 105 and 106 can be manufactured in one piece of metal plate by beam cutting, e.g. laser, water jet, or plasma cutting. The metal can be e.g. stainless steel.
In the exemplifying mixing and dissolving tube illustrated in figures 1a and 1b, the guide plates of the flow guide element 105 that is first in the flow direction form greater angles with respect to the longitudinal direction of the tube element 102 than o the guide plates of the flow guide element 106 that is later in the flow direction. In S figures 1a and 1b, this is illustrated by the fact that the flow guide element 105 is g 25 shorter than the flow guide element 106 in the longitudinal direction of the tube 2 element 102.
I E The exemplifying mixing and dissolving tube illustrated in figures 1a and 1b 8 comprises a thread fitting 124 for connecting the mixing and dissolving tube to a 3 supply tube. The supply tube is not shown in figures 1a and 1b. Instead of the thread N 30 fitting 124, a mixing and dissolving tube according to an exemplifying and non- limiting embodiment may comprise a cylinder fitting, a flange fitting, or some other suitable mechanism for connecting to a supply tube. The invention is not limited to any specific connection mechanisms between a mixing and dissolving tube and a supply tube.
Figure 3 illustrates a flow guide element 305 of a mixing and dissolving tube according to an exemplifying and non-limiting embodiment. The flow guide element 305 is a plate constituting two substantially planar guide plates 309 and 310 and an isthmus 311 connecting the guide plates 309 and 310 so that the guide plates are twisted with respect to each other so that the flow guide element 305 has an X- shaped projection on a geometric plane parallel with the xz-plane of a coordinate system 399. The flow guide element 305 differs from the flow guide elements 105 and 106 shown in figures 1a and 1b so that cuts between the guide plates 309 and 310 are wider than corresponding cuts in the flow guide elements 105 and 106, when the flow guide element 305 is seen along the x-axis of the coordinate system 399 and the flow guide elements 105 and 106 are seen along the x-axis of the coordinate system 199.
In the exemplifying mixing and dissolving tube illustrated in figures 1a and 1b, the nozzle head 101 is shaped to constitute two main channels 112 and 113 for the main flow and an outer surface of the nozzle head 101 constitutes, together with an inner surface of the tube element 102, two side channels 116 and 117 for the side flow so that a cross-sectional flow area of the nozzle head decreases towards the end of the nozzle head at which the main flow exits the nozzle head 101. As shown by the section view A-A shown in figure 1b, each of the side channels 116 and 117 is at least partly between the main channels 112 and 113. Forms of the main and = side channels are advantageously smooth and there are no obstacles crossing the N main and side flows in which dirt might stick. This multichannel arrangement 7 25 provides an efficient suction effect and an efficient mixing of ingredients of the main = flow and the side flow.
S As illustrated in figure 1b, each side channel 116 and 117 is formed by a longitudinal io groove on the outer surface of the nozzle head 101 where the depth of the groove > increases towards the end of the nozzle head. In this exemplifying case, the wall of the nozzle head 101 has a constant thickness and therefore each longitudinal groove on the outer surface of the nozzle head 101 corresponds to a longitudinal ridge on the inner surface of the nozzle head 101. In the section view A-A, the longitudinal ridges are depicted with references 125 and 126. In this exemplifying case, the tops of the ridges 125 and 126 are in contact with each other so that the cross-sectional areas of the main channels 112 and 113 are separate from each other at the end of the nozzle head 101. Figures 4, 5, and 6 show cross-sections of nozzle heads of mixing and dissolving tubes according to exemplifying and non-limiting embodiments. The geometric section planes are parallel with the xy-planes of coordinate systems 499, 599, and
699. Each cross-section is taken near to the end of the nozzle head under consideration. The exemplifying nozzle head illustrated in figure 4 comprises two main channels 412 and 413 and one side channel 416. In the exemplifying nozzle heads illustrated in figures 5 and 6, there are as many side channels as main channels and each main channel is at least partly between adjacent ones of the side channels. The nozzle head illustrated in figure 5 comprises three main channels 512, 513, and 514, and three side channels 516, 517, and 518. The nozzle head illustrated in figure 6 comprises four main channels 612, 613, 614, and 615, and four side channels 616, 617, 618, and 619. In the exemplifying nozzle heads illustrated in figures 4, 5, and 6, each side channel is formed by a longitudinal groove on the outer surface of the nozzle head so that the depth of the groove increases towards the end of the nozzle head. The wall of the nozzle head has a constant thickness and therefore each longitudinal groove on the outer surface of the nozzle head corresponds to a 2 longitudinal ridge on the inner surface of the nozzle head. In the exemplifying nozzle O heads illustrated in figures 5 and 6, the top of each ridge is free from contacts with 7 25 apartoftheinner surface of the nozzle head opposite to the ridge so that the cross- = sectional areas of the main channels join each other as shown in figures 5 and 6. a S A multi-channel nozzle head of the kind described above divides the main flow into io the main channels and accelerate the divided flows smoothly. Pressure in a supply > tube is converted to kinetic energy that creates a vacuum and further, an efficient suction and cavitation in the nozzle zone. The cavitation breaks molecular and ionic structures and activates chemical reactions in the mixture of the main and side flows.
The cavitation can split liquid in to liquid drops in the nozzle zone that improves diffusion of soluble ingredients. Figures 2a and 2b illustrate a mixing and dissolving tube according to an exemplifying and non-limiting embodiment. The mixing and dissolving tube comprises a nozzle head 201 for a main flow and a tube element 202 surrounding the nozzle head. In figure 2a, the tube element 202 is presented as a section view where the geometric section plane is parallel with the xz-plane of a coordinate system 299. In figure 2b, the tube element 202 is presented as a section view where the geometric section plane is parallel with the yz-plane of the coordinate system
299. A wall of the tube element 202 comprises openings 203 for passing a side flow subject to a suction effect caused by the main flow. The tube element 202 comprises a throttle section 204 that is located after the nozzle head 201 in the flow direction. In this exemplifying case, the throttle section 204 comprises two throttles 207 and 208 successive in the flow direction. The throttle section 204 mixes the main flow and the side flow thus producing a substantially even mixture of the ingredients of the main and side flows and slows down the accelerated flow without causing disruptive turbulences. Furthermore, the two successive throttles 207 and 208 create pressure waves which improve mixing and dissolving performance. The mixing and dissolving tube further comprises flow guide elements 205 and 206 for generating a two-headed vortex flow. Each of the exemplifying mixing and dissolving tubes illustrated in figures 1a and 1b and in figures 2a and 2b comprises two flow guide elements for generating a two- = headed vortex flow. It is also possible that a mixing and dissolving tube according 3 to an exemplifying and non-limiting embodiment comprises only one flow guide LO 25 element for generating a two-headed vortex flow. Furthermore, it is also possible that a mixing and dissolving tube according to an exemplifying and non-limiting E embodiment comprises three or more successive flow guide elements for 8 generating a two-headed vortex flow. The suitable number of the flow guide 3 elements depends on ingredients of the main and side flows and on needs related N 30 to mixing, dissolving, and/or chemical reactions.
Exemplifying applications and advantages of mixing and dissolving tubes of the kind described above are shortly described below: Water aeration: Aeration efficiency is high due to functions of vacuum, cavitation, and air suction powered by kinetic energy of the flow. Saturation of air gases has been achieved within treatment of few seconds in brief tests. Energy consumption is little compared with typical prior art technologies. In flowing waters like rivers and water piping, the aeration can be executed without additional energy. Further, the air is sucked out of the water surface that ensures clear air dissolving and avoids dissolution of reaction and bio gases back into the water as many recent aerators do. Gas dissolving: Dissolving is fast and efficiency high, and energy consumption low for soluble gases like oxygen, ozone, carbon oxide, nitrogen etc. A mixing and dissolving tube comprising a multi-channel nozzle head of the kind describe above ensures even dissolving of the treated liquid. This is a very important feature in industrial water treatment and disinfection in general. Bacteria can be killed by the treatment, and energy and ozone can be saved. Disinfection of fluids: Bacteria and viruses can be killed in water by ozone feed or suction due to even o 20 mixing feature of a mixing and dissolving tube of the kind described above. & os Flotation processes:
O 2 A mixing and dissolving tube of the kind described above improves flotation E processes due to its high performance and even gas suction, mixing, and dissolving. O The liguid to be treated by flotation can be led through the mixing and dissolving io 25 tube in total, pretreated with desirable chemicals and feed air in it to create bubbles > for the flotation separation. The mixing and dissolving tube ensures separation efficiency and low energy consumption by the continuous treatment and separation without stopping the flow.
Water treatment at homes: A mixing and dissolving tube of the kind described above can be integrated in household water supply systems like taps and showers to enrich the water with clear air.
The specific examples provided in the description given above should not be construed as limiting. Therefore, the invention is not limited merely to the exemplifying and non-limiting embodiments described above. Lists and groups of examples provided in the description are not exhaustive unless otherwise explicitly stated.
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Claims (10)
1. A mixing and dissolving tube comprising: - anozzle head (101, 201) for a main flow, and - a tube element (102, 202) surrounding the nozzle head, a wall of the tube element comprising at least one opening (103, 203) for passing a side flow subject to a suction effect caused by the main flow, characterized in that the tube element comprises a throttle section (104, 204) located after the nozzle head in a flow direction, and the mixing and dissolving tube further comprises at least one flow guide element (105, 106, 205, 206, 305) for generating a two-headed vortex flow inside the tube element and after the throttle section in the flow direction.
2. Amixing and dissolving tube according to claim 1, wherein the throttle section (104) comprises a single throttle (107).
3. Amixing and dissolving tube according to claim 1, wherein the throttle section — (204) comprises two throttles (207, 208) successive in the flow direction.
4. A mixing and dissolving tube according to any one of claims 1-3, wherein the flow guide element is one of two or more flow guide elements (105, 106, 205, 206) successive in the flow direction inside the tube element and suitable for generating two-headed flow vortices so that the two-headed flow vortices generated by different = 20 ones of the flow guide elements have a same handedness.
N 3 5. A mixing and dissolving tube according to any one of claims 1-4, wherein the 2 flow guide element is a plate constituting two guide plates (109, 110, 309, 310) each E being substantially planar and an isthmus (111, 311) connecting the guide plates so O that the guide plates are twisted with respect to each other so that the flow guide io 25 element has an X-shaped projection on a geometric plane perpendicular to both the > guide plates and non-intersecting with a longitudinal direction of the tube element.
6. Amixing anddissolving tube according to claim 5, wherein an edge of each of the guide plates (109, 110) which is against an inner surface of the tube element
(102) has a shape of an arc of an ellipse so that the edge fits the inner surface of the tube element when the guide plate under consideration is oblique with respect to the longitudinal direction of the tube element.
7. A mixing and dissolving tube according to claim 5 or 6, wherein the plate constituting the two guide plates and the isthmus is made of metal.
8. A mixing and dissolving tube according to any one of claims 1-7, wherein the nozzle head is shaped to constitute two or more main channels (112, 113, 412, 413, 512-514, 612-615) for the main flow and an outer surface of the nozzle head constitutes, together with an inner surface of the tube element, one or more side channels (116, 117, 416, 516-518, 616-619) for the side flow so that a cross- sectional flow area of the nozzle head decreases towards an end of the nozzle head at which the main flow exits the nozzle head, and each side channel is at least partly between adjacent ones of the main channels.
9. A mixing and dissolving tube according to claim 8, wherein a wall of the nozzle head has a constant thickness and each side channel (116, 117, 416, 516-518, 616- 619) is formed by a longitudinal groove on the outer surface of the nozzle head where depth of the groove increases towards the end of the nozzle head.
10. A mixing and dissolving tube according to claim 8 or 9, wherein the nozzle head comprises as many side channels (116, 117, 516-518, 616-619) as main channels (112, 113, 512-514, 612-615) and each main channel is at least partly o between adjacent ones of the side channels.
O
N
O <Q
LO
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O o
LO o
O
N
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20195196A FI20195196A1 (en) | 2019-03-15 | 2019-03-15 | A mixing and dissolving tube |
| PCT/FI2020/050115 WO2020188143A1 (en) | 2019-03-15 | 2020-02-21 | A mixing and dissolving tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20195196A FI20195196A1 (en) | 2019-03-15 | 2019-03-15 | A mixing and dissolving tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FI20195196A1 true FI20195196A1 (en) | 2020-09-16 |
Family
ID=69845451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20195196A FI20195196A1 (en) | 2019-03-15 | 2019-03-15 | A mixing and dissolving tube |
Country Status (2)
| Country | Link |
|---|---|
| FI (1) | FI20195196A1 (en) |
| WO (1) | WO2020188143A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425260A (en) * | 2020-10-29 | 2022-05-03 | 中国石油化工股份有限公司 | Liquid-liquid mixing device and mixing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4308278A1 (en) * | 2021-03-18 | 2024-01-24 | Hilla Consulting Oy | A device for manipulating fluids |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3652061A (en) * | 1971-03-04 | 1972-03-28 | Dow Chemical Co | Interfacial surface generator and method of preparation thereof |
| GB1380142A (en) * | 1972-03-09 | 1975-01-08 | Dow Chemical Co | Interfacial surface generator and method of fabrication thereof manufacture of integrated circuits |
| US4710325A (en) * | 1987-01-20 | 1987-12-01 | Air-O-Lator Corporation | Aspirating aeration and liquid mixing apparatus |
| US6425382B1 (en) * | 2001-01-09 | 2002-07-30 | Cummins Engine Company, Inc. | Air-exhaust mixer assembly |
| DE102011082862A1 (en) * | 2011-09-16 | 2013-03-21 | Siemens Aktiengesellschaft | Mixing device for mixing agglomerating powder in a suspension |
| KR101182543B1 (en) * | 2012-04-13 | 2012-09-12 | 허종형 | Chemicals linear dissolving apparatus for water treatment |
| US20130327417A1 (en) * | 2012-06-07 | 2013-12-12 | Jeffrey L. Gardner | Self aligning venturi pipe assembly |
| WO2014027993A1 (en) * | 2012-08-13 | 2014-02-20 | Alchem Environmental Ip Llc | Ancillary embodiments and modifications to a polyphasic pressurized homogenizer |
| US20170074145A1 (en) * | 2015-09-11 | 2017-03-16 | Avl Test Systems, Inc. | Exhaust Sampling System Including A Mixer That Mixes Exhaust Gas And Dilution Gas |
| WO2018146382A1 (en) * | 2017-02-08 | 2018-08-16 | Beneq Oy | Apparatus and method for processing gas or aerosol |
-
2019
- 2019-03-15 FI FI20195196A patent/FI20195196A1/en not_active Application Discontinuation
-
2020
- 2020-02-21 WO PCT/FI2020/050115 patent/WO2020188143A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425260A (en) * | 2020-10-29 | 2022-05-03 | 中国石油化工股份有限公司 | Liquid-liquid mixing device and mixing method |
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| Publication number | Publication date |
|---|---|
| WO2020188143A1 (en) | 2020-09-24 |
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