Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
  • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
  • F15C1/00—Circuit elements having no moving parts
  • F15C1/16—Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
  • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
  • F15D1/00—Influencing flow of fluids
  • F15D1/0015—Whirl chambers, e.g. vortex valves
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/0318—Processes
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
  • Y10T137/2087—Means to cause rotational flow of fluid [e.g., vortex generator]
  • Y10T137/2098—Vortex generator as control for system
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
  • Y10T137/2087—Means to cause rotational flow of fluid [e.g., vortex generator]
  • Y10T137/2109—By tangential input to axial output [e.g., vortex amplifier]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
  • Y10T137/2224—Structure of body of device

Definitions

• the invention relates to a method in which a pressurized pipe flow is given a spiral movement and then an axial pipe flow is obtained, the inflow being directed against a height-adjustable flow guide.
• the invention also relates to a device with deflection or branching of a pressurized pipe flow with an installation part which is adjustable in height and a swirl chamber which tapers from the area of the tangential inlet to the axial outlet of the flow.
• the subject of the invention is also the application of the device of the method to the inflow of inlets for round basins, sand classifiers, vortex separators, hydryclones or vortex cleaners, centrifugal separators, hydryclone separators and distributor structures for incoming water masses.
• Such methods and devices are used both in water and wastewater, or more particularly in hydraulic engineering in settlement management and in laboratory and process engineering.
• Rotationally symmetrical spiral movements are advantageous in various applications and methods of hydraulics. Such tasks arise both in hydraulic engineering and in urban water management and in laboratory and process engineering. In the wastewater sector, uniform loading of various basins is usually desirable, whereas in laboratory and process engineering a stable spiral movement in pipe strings can be advantageous or even a desired effect, such as eg a separation process can only trigger.
• the disadvantage of previously used swirl chamber shapes eg according to Ada i, Drioli, Knapp, Tho ⁇ ia etc.
• the reason for this is the non-uniform pressure distribution over the swirl chamber circumference and the insufficient pressure redistribution during the transition from the tangential to the axial tube. As a result, the vortex core which is formed and consists of air or liquid is deflected to one side.
• DE-OS 36 30 536 cannot function as it is described and illustrated. In addition, a further asymmetrical part would be necessary there to treat the asymmetrical flow. In such a device known from DE-OS 36 30536, the considerations that led to the invention now begin.
• the object of the invention is to use a simple construction to cause a rotationally symmetrical or arbitrarily eccentric spiral movement of a liquid in the axial tube attached to a swirl chamber only by pressure redistribution and flow deflection, regardless of the flow, with little effort.
• this object is achieved in that the flow is deflected or branched in order to achieve a spiral movement which is distributed almost arbitrarily over the cross section, in that from the tangential inflow the lower the outflow, which is actually going off, is brought about by directing the flow and that the passage area for the swirl flow is tapered in the direction of the axial flow and in the area of the swirl application the flow is guided around a flow guide and rectifier which is adjustable with respect to the eccentricity with respect to the swirl chamber axis.
• the swirl chamber tapers in a cone shape, which has the consequence that the initially large passage area of the swirl chamber in the axial direction becomes continuously smaller up to the outflow opening and thus pressure compensation via the Flow cross-section takes place in the axial direction.
• this pressure redistribution can be brought about by installing the cylinder or cone, the axis of symmetry of the cone or cylinder being arranged eccentrically to the axis of the axial tube which is elongated in the swirl chamber.
• the conical surface is preferably inclined more steeply than the swirl chamber boundary. At least, however, it must be inclined to the same extent in order to avoid an enlargement of the flow cross section. For this reason, the cone tip or the cylinder should expediently end below the transition to the axial tube in order to provide space for pressure redistribution up to the axial outlet.
• the swirl chamber for generating a rotationally symmetrical or almost any eccentric spiral movement in liquids, in particular water preferably comprises: a) a circular swirl chamber base, the diameter of which depends on the size of the tangential inlet (s);
• the swirl chamber will generally be operated with the axial outlet opening vertically upwards or downwards.
• An arbitrarily inclined swirl chamber also generates a rotationally symmetrical spiral movement in the liquid when leaving the swirl chamber as a result of the compensation according to the invention.
• a ventilation opening or a second outlet opening can be arranged in the center of the swirl chamber base.
• the conical or cylindrical installation does not extend to the swirl chamber base.
• the built-in part itself can also provide ventilation.
• a flat swirl chamber cover can be used instead of the conical swirl chamber attachment.
• the built-in component to be arranged eccentrically must be provided to ensure the necessary pressure compensation in the swirl chamber.
• the inlet cross section can open into the swirl chamber in a tapered form, as a result of which higher inflow speeds are achieved compared to an existing pipe cross section. This also increases the speed of rotation in the swirl chamber and in the subsequent pipe.
• a continuous connection between two outlet openings can also be created by drilling the cone or cylinder centrally or appropriately in the center.
• a rotationally symmetrical rotary movement of the flow medium can be achieved in both outgoing branches which lie on a common axis.
• a conical insert is designed as a double cone.
• the advantages achieved by the invention consist in particular in that a rotationally symmetrical rotary movement is impressed by the continuous reduction of the axially flowing cross-section during the transition from the swirl chamber into the axial tube of the liquid without mechanical installations or other measures.
• the swirl chamber shape in contrast to previously known swirl chamber shapes, results in a continuous transition from the swirl chamber base to the axial outlet and a gradual pressure redistribution is thus possible in connection with the adjustable built-in part.
• previously used and investigated swirl chamber shapes for generating a rotation in a medium the sudden transition from the swirl chamber to the axial pipe caused pressure potentials which led to an uneven loading across the flow cross section.
• Cleaning devices such as hydrocyclones vortex cleaners centrifugal separators hydrocyclone separators centrifugal separators
• a particular advantage of the invention can also be used in the field of water management for distribution structures for incoming water masses.
• Such distribution structures absorb the incoming water and distribute the amount of water evenly over different pools.
• GB 10 67 196 and US 31 98 214 have also become known. These describe a throttling flow function, but without any displaceable inner body or a displaceable built-in part.
• an adjustable element there, namely a flow body with which the passage cross section can be regulated.
• a shock absorber which is to lead to proportional cushioning in the event of strong or weak impacts, is considered as the application area there - therefore also for throttling.
• an equalization of the outflow is not intended, but vertical adjustment of the flow body is likely. An adjustment, for example horizontally, in the eccentricity of certain elements is not provided. On the other hand, any throttling would be extremely unfavorable according to the invention.
• an outflow that is as axial as possible should be achieved, the greatest possible rotationally symmetrical equalization should take place, the flow should leave the axial tube with a rotationally symmetrical swirl.
• FIG. 1 shows a view of the flow guide according to a first embodiment
• Fig. 2 is a plan view of Fig. 1;
• FIGS. 4 and 6 show other embodiments, the inflow according to FIG. 4 being horizontal, the outflow vertically downwards, whereas the horizontal inflow of FIG. 6 is directed vertically upwards; 5 shows another form in a different arrangement; FIGS. 7 and 8 ⁇ show other forms of realization of the underlying idea of the invention.
• FIG. 9 is a representation similar to FIG. 2 with a different design of the inflow pipe.
• a swirl chamber with a reduction in the flow cross section is shown in section.
• the tangential swirl chamber inlet 1 opens into the swirl chamber base 2 indicated by dashed lines and is guided around an installation 3 in height and eccentricity with respect to the swirl arm axis.
• the installation 3 is a cylindrical installation element which sits snugly on the swirl chamber base 2. The end face of the cylinder 3 is always below the axial opening 6.
• the water Q flows tangentially into the swirl chamber 5, where it moves spirally in the flow cross section between the cylinder installation 3 and the conical swirl chamber wall 4 towards the axial outlet 6.
• the pressure is increasingly compensated for by the flow as the flow continues up to a certain area dependent on the pressure cross section through the respective cross section. The result of this is that a rotationally symmetrical or arbitrarily eccentric, spiral-shaped rotary movement is formed in the axial lead 6.
• FIG 3 shows a swirl chamber in which the required pressure redistribution is established by the flow between the conical surfaces and the jacket of the swirl chamber.
• the cone is always inclined more steeply than the swirl chamber 4 surrounding it. According to an embodiment, not shown, the necessary pressure redistribution occurs even without the support of installing a cone.
• the required pressure redistribution occurs even without the cone-shaped swirl chamber attachment if the installation part is arranged eccentrically to the swirl chamber axis.
• the installation part 3 (here a cone) can be fixed in such a way that a certain distance clears the second opening 10.
• the rotationally symmetrical spiral movement of the flowing medium in the outlets occurs only when the cross-sectional reduction 5 is passed through, not with the opening 10 made on the swirl chamber base 2.
• Fig. 4 shows an inflow partially. from above, the outflow goes axially downwards.
• the installation part is a cone 11, which has a through bore 12. So there is a ventilation or venting via the bore 12.
• FIG. 5 shows a toroidal casing 7 of the swirl chamber, by means of which the pressure redistribution in accordance with the respective requirements is brought about by a suitable combination with a specific shape of an installation part 8 or a moderate taper.
• FIG. 9 A representation similar to FIG. 2 is shown in FIG. 9, only that the tangential inlet 9 is designed to narrow or taper. As a result, the flow rate can be increased to a level necessary for swirl formation.
• FIG. 1 i.e. that with a smooth cylinder can be further developed such that instead of the smooth upper cylinder surface the cylinder is rounded at the top in a hemispherical, parabolic, conical manner, the embodiment according to FIG. 1 can also be provided with an axially parallel bore to be seen.
• the surface of the built-in element will always be smooth.
• the cone can also have a rounded cone head, a parallel-shaped rounded cone head, a truncated cone or a rounded truncated cone.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Mechanical Engineering (AREA)
• Theoretical Computer Science (AREA)
• Cyclones (AREA)
• Cleaning In General (AREA)
• Degasification And Air Bubble Elimination (AREA)
• External Artificial Organs (AREA)
• Electric Cable Installation (AREA)
• Image Generation (AREA)
• Pipeline Systems (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=6500480

Family Applications (1)

Country Status (9)

Families Citing this family (17)

Family Cites Families (18)

• 1993
  • 1993-10-19 DE DE4335595A patent/DE4335595A1/de not_active Withdrawn
• 1994
  • 1994-10-07 AT AT94929518T patent/ATE168745T1/de not_active IP Right Cessation
  • 1994-10-07 BR BR9406154A patent/BR9406154A/pt unknown
  • 1994-10-07 AU AU78545/94A patent/AU7854594A/en not_active Abandoned
  • 1994-10-07 US US08/446,823 patent/US5573029A/en not_active Expired - Fee Related
  • 1994-10-07 DE DE59406499T patent/DE59406499D1/de not_active Expired - Fee Related
  • 1994-10-07 DE DE4497914T patent/DE4497914D2/de not_active Expired - Fee Related
  • 1994-10-07 WO PCT/EP1994/003315 patent/WO1995011387A1/fr active IP Right Grant
  • 1994-10-07 EP EP94929518A patent/EP0674752B1/fr not_active Expired - Lifetime
  • 1994-10-07 CN CN94190804A patent/CN1115999A/zh active Pending
  • 1994-10-07 JP JP7511256A patent/JPH08504928A/ja active Pending

Non-Patent Citations (11)

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