EP3102899A2 - Strömungsapparat und verfahren zur führung eines fluidstroms - Google Patents
Strömungsapparat und verfahren zur führung eines fluidstromsInfo
- Publication number
- EP3102899A2 EP3102899A2 EP15703755.7A EP15703755A EP3102899A2 EP 3102899 A2 EP3102899 A2 EP 3102899A2 EP 15703755 A EP15703755 A EP 15703755A EP 3102899 A2 EP3102899 A2 EP 3102899A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow
- fluid
- fluid flow
- section
- guide tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/003—Multiple wall conduits, e.g. for leak detection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
Definitions
- the invention relates to a method for guiding a fluid flow which has an inflow and an outflow section with an essentially parallel, preferably coaxial inflow and outflow axis.
- An inflow or outflow section of a fluid flow is understood to mean, in particular, that part of a flow path which lies in front of or behind an effective section of the entire flow path of the considered method in the flow direction.
- the term "action section" is understood to mean the part of the flow path in which the method acts on the fluid flow or in which the fluid flow is treated in accordance with the method.
- an imaginary axis is understood to mean an imaginary axis parallel to a flow direction in the inflow or outflow section.
- the inlet or outlet axis is preferably substantially perpendicular to a cross-sectional area of the inlet or outflow section of the flow path.
- An effective length is understood to mean, in particular, a section of the fluid flow or a flow path of the fluid flow in which it can be exposed to, subjected to or supplied with an interaction.
- the interaction may in particular be a chemical, thermal, mechanical and / or electromagnetic change.
- the interaction partner can be a further fluid flow, a solid, an arrangement or device, an interaction region of a flow apparatus and / or another medium.
- the fluid flow through at least one guide means between an inflow section and an outflow section deflects the inflow and outflow axes in a flow around section circumferentially radially around UW, wherein UW is greater than 0 °.
- the effective length can advantageously be set or selected in the bypass section over the circumferential angle UW.
- the guide means may in particular be a guide body, tube and / or channel, a separating element, preferably a separating element in a tubular guide element, particularly preferably a partition wall in a guide tube and / or a combination of such elements, which fluid flow or a Fluid flow of the fluid flow deflects suitable.
- a guide means this comprises a guide tube with input or output connections arranged at the end, to which an inflow and outflow region adjoin on the tube side or the inflow and outflow section can connect to the fluid flow.
- the guide tube can be formed in a straight line, in particular, so that the inlet or outlet connection and the associated inflow and outflow regions of the line system or the inflow and outflow sections of the fluid flow have a substantially rectilinear flow course of the fluid flow along an inlet or outlet. Force or bring about the outflow axis, or at least favor it.
- the arrival and downstream axis are preferably aligned coaxially with each other.
- a guide element in particular a partition wall, is arranged, which provides a transversely spaced flow to the fluid stream flowing along the inflow axis. endowing directional component.
- the fluid flow is preferably decomposed along this Umströmabitess into partial flows with radial flow directions.
- the resulting radial flows are deflected in the circumferential direction about the inlet and outlet axis, before they are finally deflected back towards the outflow axis by further deflection components after a circumferential angle UW.
- a particularly well scalable implementation of the method in a flow apparatus is achieved when the circumferential angle UW is substantially an integer multiple of 30 °, 45 °, 60 °, 90 °, 180 ° or 360 °.
- a preferred embodiment of the method is achieved in that the fluid flow enters a guide tube via an input port and propagates along a flow direction in the guide tube, wherein the fluid flow is deflected over a pipe section through a partition wall, in particular sections, preferably continuously progressing into a radial flow ,
- the radial flow can emerge from the guide tube through at least one radial passage and enter a gap formed by a tube jacket which extends around the guide tube and is preferably substantially closed.
- the tube jacket deflects the radial flow in a circumferential direction around the guide tube, so that the fluid flow now merges into the flow around section before it re-enters the guide tube through another radial passage and is deflected again in the outflow direction by the guide tube and becomes a Output terminal is guided.
- the fact that the fluid flow in the Umströmungs Scheme interacts with at least one fluid flow or at least can interact, can be achieved with the inventive method, a particularly compact implementation in a flow apparatus for the interaction between the first and the further fluid flow.
- At least one fluid flow preferably undergoes a change in state, with a change in state here in particular a change in a thermodynamic state, in particular the temperature, pressure, volume and / or the state of matter, and / or a chemical state, in particular a chemical composition, and / or another physical condition.
- a change in state here in particular a change in a thermodynamic state, in particular the temperature, pressure, volume and / or the state of matter, and / or a chemical state, in particular a chemical composition, and / or another physical condition.
- a particularly good interaction between the first and further fluid flow is achieved in that the further fluid flow in the circulating flow region is essentially flowed transversely from the fluid flow.
- a "cross-flow” is understood to mean, in particular, a flow course in which the directional vector of the first fluid flow is approximately perpendicular in the region of the interaction of the two fluid flows, but at least at an angle of at least 30 °, in particular 45 °, but preferably at least 0
- the directional vector of a flow is understood to mean, in particular, the local directional arrow or the local spatial direction indication of a respective flow section or a flow cell or a volume cell of the flow.
- the invention relates to a flow apparatus having a first conduit system for passing a first fluid flow, wherein in the first conduit system comprises a guide tube and at least one, a flow direction of the fluid flow influencing guide means and / or at least one flow body.
- the guide means and / or the flow body are provided and designed to optimize a flow course for increasing the efficiency of the flow apparatus.
- optimization of a flow course particularly describes the setting of a residence time within certain sections of the flow apparatus, the suppression or targeted generation of turbulence in certain flow sections of the fluid flow and / or alignment of flow directions in certain sections of the flow apparatus and / or the specific Flow sections of the fluid flow understood.
- the invention relates to a flow apparatus, in particular for carrying out the aforementioned method.
- the flow apparatus preferably has a first conduit system for the passage of a first fluid flow, wherein the first conduit system comprises a guide tube and at least one guide means influencing a flow direction of the fluid flow, so that the fluid flow between an inflow region and an outflow region of the first conduit system and flow-off axis in a flow around a circumferential circumferential angle UW radially encircling.
- the circumferential angle UW can be selected, set and / or configured as a preferred integer multiple of 30 °, 45 °, 60 °, 90 °, 180 ° or 360 °.
- the conduit system may be in particular a pipeline, a channel, a hollow body and / or a system of coupled pipelines, channels and / or hollow bodies, through which a fluid flow is passable.
- a flow axis is understood in particular to mean a surface normal on an opening cross-sectional area of a connection opening of the conduit system.
- the invention relates to a flow apparatus for an interaction of at least two fluid streams, wherein in particular one of the fluid streams is guided by the aforementioned method.
- the flow apparatus has a first line system for passing a first fluid stream and preferably at least one further line system for passing a further fluid stream.
- Each of the line systems has in each case at least one input and at least one output connection for the supply or discharge of the respective fluid flow.
- a line section of the line system in the flow direction in front of or behind a process section of the fluid flow or the respective fluid flow, but also a corresponding flange or correspondingly arranged connection flange on the respective line system and is intended to be under a connection, in particular an input or output connection / or a pipe arranged there at the respective pipe system are understood, which serves for the supply or discharge of the respective fluid flow.
- Such flow apparatuses are frequently used as boilers, heat exchangers and / or evaporators, with the greatest possible space utilization, ie the greatest possible contact or transmission area between the fluid streams, being achieved.
- aligning a main flow axis of the second fluid flow essentially parallel to the inlet and / or outflow axis of the first fluid flow this can be achieved.
- the inflow and outflow axes of the first flow of fluid are preferably aligned coaxially with one another.
- a main flow axis is to be understood as meaning, in particular, an axis along which or parallel to which a flow propagates to at least 50% of a total path length relative to a line system.
- a flow axis of at least one of the two ports of the further conduit system is not parallel, preferably at an angle greater than 45 °, more preferably almost aligned at right angles to at least one flow axis of one of the two ports of the first conduit system.
- a flow axis of at least one of the two ports preferably both ports of the further conduit system is aligned parallel to a flow axis of one of the two ports of the first conduit system.
- the second-mentioned variant can lead to an advantageous compactification of the flow apparatus or its installation in a piping or a plant.
- the input and output terminals in particular the flow axes of the input and output terminals, at least one of the conduit systems lie in one plane, are preferably aligned parallel to each other, particularly preferably coaxially aligned with each other, a readily be integrated into existing plants flow apparatus can be achieved.
- a coaxial arrangement of the input and output port of the first conduit system allows easy integration of the flow apparatus into existing conduit systems of the first fluid idstrom.
- the flow apparatus for utilizing a waste heat of a first fluid stream as a heat exchanger could be integrated directly into an existing line network for passing the first fluid stream, in which a straight line section is replaced by the flow apparatus.
- the input and output terminals in particular the Flow axes of the input and output terminal, at least one, preferably each conduit system of the flow apparatus in each case lie in one plane, preferably each aligned parallel to each other, particularly preferably each coaxially aligned with each other, wherein the respective planes preferably include an angle between 45 and 90 °.
- the inlet and outlet connections of the further conduit system are arranged at mutually opposite end regions of the tube jacket along a longitudinal extension of the guide tube.
- the inlet and outlet connections can preferably be oriented substantially in the radial direction away from the guide tube and, in particular, can be arranged in substantially diametrically opposite directions from one another.
- Such a design can be used in particular in other conduit systems, which are constructed essentially of straight pipe sections or pipe sections.
- the flow apparatus according to the invention has a cylindrical shape extending along a main axis, wherein the flow axis of the inlet and / or outlet port of the first conduit system is aligned parallel, preferably coaxially to this main axis.
- the input and / or output connection of the further line system is arranged in the vicinity of the input or output connection of the first line system, wherein the flow axis of the input and / or output connection of the further line system substantially is oriented perpendicular or alternatively parallel to the main axis.
- the input connection of the further line system is provided in the vicinity of the input connection of the first line system, while the output connection of the further line system is arranged in the vicinity of the output connection of the first line system, or vice versa.
- This embodiment can be particularly advantageous in flow apparatus with further piping systems, which are essentially constructed of straight pipe sections or pipe sections.
- the first conduit system is essentially formed by a guide tube and a tube jacket enclosing the guide tube, the tube jacket enclosing a gap extending between the guide tube and the tube jacket, and wherein the inlet and outlet connection of the first conduit system at the two, in Substantially opposite ends of the guide tube are arranged, it can be obtained in a particularly simple manner an inventive flow apparatus or a flow apparatus for carrying out the method according to the invention.
- a particularly advantageous embodiment, which is easy to assemble, is obtained when the tube jacket is hood-shaped and has a substantially cylindrical jacket structure and a bottom or a mounting section on each end face, wherein the bottom adjoins a connecting section of the guide tube.
- the mounting portion may be formed, for example, as a mounting shoulder and / or contact surface and / or 6.3ring.
- the mounting portion is provided to arrange the pipe jacket on another component or another assembly of the flow apparatus, in particular to set the pipe jacket there.
- a partition extending obliquely through a longitudinal cross-section of the guide tube is arranged as a guide means in the guide tube, in particular between the inlet connection and the outlet connection.
- a flow section in the region of the inlet or outlet connection forms the inlet or outlet section of the fluid flow.
- the guide tube has in the region enclosed by the tube shell in its lateral surface in each case at least one, preferably a plurality of radial passages for passage of the first fluid flow from the guide tube into the gap or for passage from the intermediate space into the guide tube along a flow direction of the first fluid flow.
- substantially the flow around section of the first fluid flow is arranged or located.
- the partition wall, together with the radial passages in the guide tube, advantageously permits the first deflection and possibly the division of the first fluid flow into radially directed partial flows, while the tube jacket ensures a deflection in the circumferential direction.
- At least one flow guide body which preferably extends into the guide tube, is provided in the flow direction of the first fluid flow, at least on a part of the guide tube pointing from the input connection towards the dividing wall, the reaction of the method according to the invention in the flow apparatus can advantageously be favored.
- the flow guide body can also have a radial extension into the intermediate space.
- an "arrangement in the region of a radial passage" is understood to mean that the flow guide body can be provided or arranged downstream of the radial passage, at the level of the radial passage and / or the respective radial passage in the flow direction.
- the flow apparatus according to the invention can be improved in that a first flow cross section QE of a part of the guide tube facing the input port decreases substantially as much along the direction of flow of the first fluid flow as a second flow cross section QA of a part of the guide tube facing the output port along the Flow direction of the first fluid flow increases.
- the sum of QE and QA is not greater than a flow cross-section in the input port, but in particular applications of the flow apparatus also a different design of the sum cross section of QE and QA with respect to the input or output cross-section of the terminals of advantage can.
- the first fluid flow flowing from the inlet connection and the first fluid flow flowing towards the outlet connection are distributed as evenly as possible over an axial length of the intermediate space or the flow area or section or at least one axial section of the intermediate space can be.
- the advantageous pressure loss-reducing and / or turbulence-suppressing effect of the structure according to the invention is supported.
- a continuous, monotonous or strictly monotonous change in the cross sections QE, QA as a function of the axial position along the intermediate space, of the bypass section or bypass section can be described or formed.
- the course of the first flow cross-section QE is rectilinear, linearly decreasing, while the course of the second flow cross-section in the same mass is rectilinear, linearly rising.
- a hyperbolic, parabolic, exponential and / or other suitable curve in particular depending on the axial position along the gap of Umströmabitess or Umström ceremoniess could be advantageous.
- the or the radial passages are / are formed slit-like relative to the circumference.
- slot-like passages in addition to one-piece, substantially elongate recesses, apertures or passages are also understood to mean a number of small slits, such as boreholes, gratings or the like, which are slit-like overall, arranged along the longitudinal extension and / or grouped.
- the radial passages can also be designed as flat recesses, bores or openings.
- the radial passages or the effective radial passage resulting from small passages have an effective passage width which is preferably less than or substantially equal to a passage length of the radial passages or the effective radial passage resulting from small passages relative to a longitudinal extension of the guide tube.
- radial passages or the small passages can be introduced into the jacket of the guide tube by cutting, punching, machining and / or forming machining.
- a cross-sectional area of the radial passage or a total area of the cross-sections of the radial passages is preferably between 25% and 400%, in particular between 90% and 300%, particularly preferably between 140% and 270% of the flow cross-section in the inlet connection.
- the further line system comprises a distributor head and a tube bundle system, wherein at least the input connection of the further line system is arranged on the distributor head and opens into a distributor space provided in the distributor head.
- the pipe jacket can be arranged on a side surface of the distributor head, in particular a flange surface.
- the output connection of the second line system is also arranged on the distributor head and likewise opens into the distributor chamber, which can also be understood as a collecting chamber with regard to the outlet connection.
- the pipe jacket which radially delimits the interspace, the flow-around section or an interaction region can be displaced axially over the tube bundle system during assembly or disassembly, without the second line system being moved or otherwise manipulated would.
- this makes it possible to design the tube jacket in a particularly simple manner as an axially mountable hood which can be put on or pushed out via the guide tube of the first conduit system.
- the flow apparatus according to the invention is particularly easy to assemble and maintain, since larger subunits of the flow apparatus can be preassembled independently of one another, can be easily opened or separated again in the assembled state.
- the distributor space is subdivided by at least one separating element into at least one input chamber and one output chamber, wherein the input connection opens into the input chamber and the output connection into the output chamber.
- the tube bundle system comprises at least one, preferably a plurality of tube loops, wherein each tube loop extends into the intermediate space between the guide tube and tube jacket and preferably on the input side with the input terminal or the input chamber and on the output side with the output terminal or the output chamber in operative relationship that the further fluid flow flowing through the inlet connection can flow at least partially through the respective tube loop to the outlet connection or outlet chamber.
- the training as a pipe loops also favors the preferred axially mountable structure in pre-assembled subunits of the flow apparatus according to the invention.
- Such a design of the tube bundle system is particularly suitable for the combination nation with a distributor head, on which both the input and the output terminal of the further line system are provided.
- the tube bundle system may also comprise substantially rectilinear pipe sections or pipe sections or be constructed at least partially instead of pipe loops therefrom.
- the pipe sections or pipe sections connect the distributor space of the distributor head to a collecting space, which is preferably provided at an end of the pipe sections remote from the distributor head.
- the pipe sections or pipe sections extend in their longitudinal direction preferably, but at least in sections, simply in or through the gap, in particular pierced or they measure the interaction section or the Umstromungsab mustard in the space exactly once.
- the collecting chamber is further connected to the outlet connection of the further line system, in particular the outlet connection can be provided on a collecting head which forms or substantially encloses the collecting head and which is similar to the distributor head.
- each intermediate chamber at least one additional tube loop is provided and wherein the tube loops connect the output chamber not directly to the input chamber, but the further fluid flow only sequentially from the Input chamber, can pass through at least one intermediate chamber to the output chamber, wherein it flows through at least two pipe loops.
- the tube bundle system can be formed in a simple manner, whereby a fit or pass number of a tube bundle system is understood to mean, in particular, the number of simple tubes or twice the number of tube loops that comprise at least a partial flow of a tube bundle system Piping system flowing flows idstrom between an upstream section and an outflow section.
- a flow body is arranged in at least one line system, in particular at cross-sectional transitions or flow direction diversions.
- the task of the flow body is to minimize a pressure loss of the flow of fluid flowing through the conduit system, in particular at cross-sectional transitions or flow direction deflections, by suitable deflection and / or equalization.
- the equalization of the flow through the flow body further has the advantage that a precipitation, accumulation and / or accumulation of entrained with the fluid flow contaminants, especially dirt particles such as ash, slag or the like chen, in the line system, in particular at functionally necessary cross-sectional transitions or flow direction deflections, is reduced or decreased.
- This effect is based on a reduction of the boundary layer thickness in the respective flow area.
- a cleaning interval and thus a net operating time of the flow apparatus can advantageously be prolonged.
- heat exchangers or pipe systems for flue gas from biomass furnaces and burns this can be beneficial to bear.
- a particularly preferred embodiment of a flow body is sleeve-like, wherein it has at least one deflection body for influencing a flow direction of a fluid flow surrounding the flow body during operation.
- the flow body can be used or inserted as a preferably interchangeable element into the respective piping position of the line system of the flow apparatus.
- Such flow bodies can also be used as retrofit solutions. leads and trained, which subsequently in existing flow apparatuses such.
- heat exchangers, evaporators, boilers and / or piping systems for fluid transport eg., Heating systems, fluid supply systems, tank systems, etc.
- Such flow bodies could be introduced or replaced particularly simply at existing connecting points in such line structures by loosening the connection, inserting / exchanging the flow body and subsequently restoring the connection, without adversely affecting, for example, the number of sealing points in the system.
- Such retrofits can be introduced particularly advantageously in line sections whose effective cross-section is not the limiting effective cross-section of the system or apparatus concerned, wherein under circumstances by evening out the flow, even a limiting cross-section can at least be compensated or even advantageously broadened.
- a device for separating and discharging particles is provided in the pipe jacket, which comprises a separator, a collecting area and a conveying unit, in particular a discharge screw.
- a device for separating and discharging particles can be particularly well arranged on the pipe casing according to the invention, preferably as pre-assembled with the pipe jacket or run in the pipe jacket device, whereby the advantageously simple mounting and / or maintainability of the flow apparatus according to the invention is advantageously maintained.
- the flow apparatus according to the invention can be further developed advantageously by means of a droplet separator arranged in connection to the outlet chamber or to the outlet connection.
- the droplet is attached to the header, incorporated in the header or integrated into this.
- the A condensate collected in a separation chamber of the droplet separator can be supplied via at least one return line to the inlet chamber or at least one intermediate chamber in the distributor head.
- This embodiment of a flow apparatus according to the invention is particularly advantageous for use as an evaporator, wherein the fluid flow in the first conduit system essentially serves as a heat source for the evaporation of the further fluid flow in the second conduit system. Unevaporated fractions of the second or further fluid flow can in this way easily be returned to the evaporation process in the flow apparatus, in particular to the tube bundling system carrying the further fluid flow.
- the flow apparatus comprises a bypass device, by means of which the first fluid flow at least partially and / or an adjustable, preferably adjustable proportion between 0 to 100% of the fluid flow at the first conduit system, in particular at the flow around section of the first conduit system of the flow apparatus can be passed.
- the bypass device is provided for passing the corresponding portion of the first fluid flow past the deflection by the guide means in the first conduit system. From this way, the proportion of the first fluid flow, which is deflected via the guide means and thus supplied to a flow area, can advantageously be made adjustable via the bypass device.
- the transferable to the second fluid amount of heat on the Bypass device can be adjusted and / or regulated, since the proportion of the inflowing into the Umströmungs Jardin first fluid can be throttled through the bypass device.
- the bypass device has at least one bypass line and a bypass positioner, wherein the bypass line is preferably arranged between the input and the output connection of the first conduit system of the flow apparatus.
- the bypass line may be formed as arranged in the guide tube of the first conduit system inner tube, which preferably engages centrally along the main flow axis through the guide tube.
- the bypass line consists of one or more sub-lines which extend along the guide tube through the first line system.
- the bypass line penetrates the dividing wall arranged in the guide tube, so that the proportion of the first fluid flow propagating through the bypass line is not deflected into the circulating area or has no bypass section.
- the bypass line may also be designed as a line arranged on the flow apparatus on an outer wall, in particular on an outer wall of the pipe jacket.
- the bypass line can be formed as a bypass jacket enclosing the pipe jacket.
- the bypass jacket forms the bypass line or a bypass channel between the outer wall, in particular the outer wall of the tubular jacket, and an inner wall surface of the bypass jacket.
- the bypass actuator has at least one flow regulator, in particular a valve and / or a flap and / or another fluid control element suitable for the selectable throttling and / or division and / or deflection.
- the bypass actuator can be constructed, for example, as a flow divider, in particular funnel-like flow divider with an adjustable flap.
- the flap is arranged in the bypass line or the first line system, in particular the guide tube, that in Depending on a switching position of the flap, the inflowing first flow of fluid can flow via the flow divider into the first line system and / or the bypass line.
- the bypass actuator can also be designed as a closable Ableitgitter, which is arranged in the bypass line or the first conduit system, in particular the guide tube and this selectably communicates with each other.
- the Ableitgitter acts like a flow divider and can be selected opened and / or closed, for example via a rotary and / or axial slide valve.
- the Ableitgitter in the flow direction, in particular the main flow direction is arranged in front of a flap that the flap opens the passage in the bypass line selectable and / or can close.
- the invention relates to a use or the formation of a flow apparatus according to the invention as a heat exchanger, in particular as cross-countercurrent or cross-gas-gas, gas-liquid, liquid-gas, liquid-steam, Vapor-liquid, gas-steam, vapor-gas or liquid-liquid heat exchanger, between two at least partially gaseous, one at least partially liquid and one at least partially gaseous, or two at least partially liquid fluid streams.
- gaseous fluids are understood as meaning in particular also vaporous or partially vaporous fluids.
- the flow apparatus according to the invention can also be used according to the invention as an evaporator of a further fluid stream which is liquid on the inlet side by heat transfer from a first fluid stream.
- the abovementioned uses according to the invention are of particular importance in connection with heat-power plants, preferably with plants according to the Rankine cycle, particularly preferably with plants for the implementation of a Rankine cycle with an organic working fluid.
- the organic working fluid can be considered as being produced by the further line system of the flow apparatus according to the invention. are heated by heat transfer from flowing in the first conduit system first fluid flow such that it at least partially passes from a liquid phase to a vapor phase.
- the fluid streams remain separated from one another in the flow apparatus according to the invention, so that very different types of heat-conducting fluids (eg flue gas, exhaust gases, hot water, hot water, in particular from solar thermal and / or geothermal sources, process liquids to be cooled from industrial processes, etc.) are used as first fluid streams
- energy source of the Rankine cycle can be used.
- the further fluid flow in the associated line system of the flow apparatus in the associated line system of the flow apparatus is at least partially, in particular at least 60%, preferably almost completely from a liquid by heat transfer from the first fluid stream Phase is transferred to a vapor phase.
- a direct-evaporating operation of the Rankine cycle is understood to be an operating mode in which the working fluid of the Rankine cycle flowing in a flow apparatus as a further fluid flow is fed by heat transfer from the first fluid flow, which is fed to the flow apparatus as waste heat / exhaust gas of a preliminary process is transferred directly at least partially from its liquid phase into a vapor phase.
- an additional heat transfer stage can be provided between the exhaust heat / waste gas / waste gas, in which heat energy from waste air / waste gas is transferred from an intermediate medium, eg thermal oil, and from this in a next heat transfer stage to the working medium.
- the invention relates to a system of at least two flow apparatuses of the aforementioned type.
- the two flow apparatuses are sequentially connected to one another, wherein the outlet connection of the first conduit system of the first flow apparatus is connected substantially directly to the inlet connection of the first conduit system of the second fluid apparatus , and where the initial end of the second conduit system of the first flow apparatus is connected via a connecting line to the input port of the second conduit system of the second flow apparatus.
- the system may also be advantageous for the system to couple two different or differently designed flow apparatuses of the type mentioned in the introduction, which are differently or deviatingly dimensioned in particular with respect to the second conduit system, as a system.
- two different or differently designed flow apparatuses of the type mentioned in the introduction which are differently or deviatingly dimensioned in particular with respect to the second conduit system, as a system.
- the flow apparatuses under a different dimensioning of the flow apparatuses in particular a different training with respect to line types and / or line cross sections and / or pass numbers and / or training of the distributor head, in particular the input, intermediate and / or output chamber, and / or training of the guide means, in particular Number and / or formation of radial passages and / or formation of the partition, to be understood.
- the invention relates to a heat-power plant, in particular plant for the production of mechanical and / or electrical energy according to a Rankine cycle, with at least one flow apparatus of the aforementioned type.
- a heat-power plant in particular plant for the production of mechanical and / or electrical energy according to a Rankine cycle
- at least one flow apparatus of the aforementioned type Preferred is the further fluid flow of the flow apparatus through a working medium , in particular an organic working fluid, formed, wherein the working fluid can be evaporated by heat transfer from a first fluid stream at least partially in the flow apparatus according to the invention.
- FIG. 1 shows a schematic flow profile of a fluid flow as an example of a method according to the invention
- FIG. 2 shows a fluid flow according to FIG. 1 in interaction with a further fluid flow as a further example of the method
- FIG. 1 shows a schematic flow profile of a fluid flow as an example of a method according to the invention
- FIG. 2 shows a fluid flow according to FIG. 1 in interaction with a further fluid flow as a further example of the method
- Fig. 3 is a schematic longitudinal view of an embodiment of a flow apparatus
- FIG. 4a shows a first embodiment of a flow body
- 4b shows a second embodiment of a flow body
- 4c shows a third embodiment of a flow body
- FIG. 5 shows two views of the first embodiment of a flow body according to FIG. 9a;
- Fig. 6 is a cross-sectional view of the example of Fig. 3 taken along the line A - A;
- Fig. 7a is a cross-sectional view of a first example of a distributor head of a flow apparatus similar to Fig. 3;
- Fig. 7b is a cross-sectional view of a second example of a distributor head of a flow apparatus similar to Fig. 3;
- FIG. 8 shows a distributor head according to FIG. 7a with a droplet separator
- FIG. 9 shows a schematic longitudinal view of a further embodiment of a flow apparatus with a device for the separation and discharge of particles
- Fig. 10 is a schematic longitudinal view of a system of two flow apparatuses according to the invention
- Fig. 1 1 is a diagram of an ORC system with flow apparatus of FIG.
- Fig. 12a is a schematic view of a blank of a guide tube for a flow apparatus similar to Fig. 3;
- Fig. 12b is a section through the partition in the guide tube after assembly.
- FIG. 13a shows a schematic longitudinal section of a further developed exemplary embodiment according to FIG. 3 with a first example of a centrically arranged bypass device
- FIG. 13b shows a schematic longitudinal section of a further developed exemplary embodiment according to FIG. 3 with a second example of a centrically arranged bypass device
- FIG. 13c shows a schematic longitudinal section of a further developed exemplary embodiment according to FIG. 3 with a third example of a centrically arranged bypass device
- FIG. 14 shows a schematic longitudinal section of a further developed exemplary embodiment according to FIG. 3 with an example of an externally arranged bypass device.
- FIG. 1 shows a schematic impression of the method according to the invention for guiding fluid flow.
- a fluid flow 10 follows a flow path 1 1 between a Anströmabêt 12 and a Outflow section 13.
- the fluid flow follows in the inflow section 12 substantially a linear inflow axis 14, in the outflow section 13 substantially a likewise linear outflow axis 15.
- a lying between the Anströmabrisk 12 and the outflow section 13 intermediate portion of the flow path 1 1 of the fluid flow 10 can be referred to as process section 16 as shown in FIG.
- the guide means 20 acts in this case in particular in the process section 16 of the fluid flow 10.
- the fluid flow 10 is deflected in the process section 16 such that it can circulate radially in a flow around section 17 of the process section 16, the arrival and Abströmachse 14, 15 according to the invention.
- the flow around section 17 of the fluid flow 10 can be characterized essentially by a circumferential angle UW.
- the peripheral line 18 runs in a spiral around the inlet or outlet axis 14, 15 , particularly preferably substantially in one plane EV.
- the plane EV includes a nonzero angle with the inlet or outlet axis 14, 15, preferably the inlet or outlet axis 14, 15 intersect the plane EV at an angle of at least 45 °, particularly preferably the intersect On or Abströmachse 14, 15 the plane EV almost perpendicular, with an angular deviation of up to ⁇ 10 ° is still to be understood as almost vertical.
- the guide means 20 comprises a guide tube 21, which preferably surrounds the inlet and outlet axis 14, 15 of the flow path 11 essentially coaxially.
- a partition wall 22 is arranged as deflection means 23.
- the dividing wall 22 divides an interior of the guide tube 21 receiving the fluid flow 10 into two, preferably substantially separate segments, a flow-side pipe section 24 and a downstream pipe section 25.
- the partition wall 22 is arranged or formed as part of the guide means 20. the fluid flow 10 is deflected over the tube section 24, in particular sections, preferably continuously progressively into a radial flow.
- a radial flow is understood as meaning, in particular, a flow which runs essentially in the radial direction to the intake or outflow axis 14, 15.
- the radial flow 26 occurs in FIG. 1 through at least one radial passage 27 in the guide tube 21 from this.
- a pipe jacket 29 forms with the guide tube 21, a gap 30.
- the radial flow 26 enters through the radial passage 27 in this gap 30 and radial flow 26 passes into the flow around section 17.
- the radial flow 26 is deflected along an inner wall of the tubular jacket 29 into a circumferential flow 31.
- a circumferential flow 31 is understood to mean, in particular, a flow along the circumferential line 18.
- the circumferential flow 31 now spreads out over the circumferential angle UW around the guide tube 21, wherein at least one further radial passage 32 is provided in an angular angle substantially corresponding to the circumferential angle UW in the guide tube, through which the fluid flow 10 into the outflow-side tube section 25 of the guide tube 21 can occur.
- the radial passages 27 and 32 preferably have an axial distance along the guide tube 21, which corresponds to a deviation of the orientation of the plane EV of a perpendicular to the arrival and Abströmachsen 14, 15 and results from this.
- this radial flow 33 now experiences a deflection in the axial direction, whereafter its flow direction as the outflow direction now again runs essentially parallel to the outflow axis 15.
- variants are also possible with a second direction of rotation substantially opposite to the first.
- variants with at least two partial flows with opposite directions of circulation can also be advantageous, as shown later in connection with FIGS. 3 and 6.
- it is also possible to use means for adjusting a circulation direction which is determined at least in sections, which directs the fluid flow on the flow path 11 between the upstream section 12 and the outflow section 13 into a selected direction of circulation.
- a further embodiment of the method can be achieved, in particular, if two, three or more radial passages 27, 32 are provided on the downstream side and / or downstream, whereby the fluid flow 10 is transferred along the dividing wall 22 into partial flows. These partial flow then each have their own process section 16, which may preferably be oriented substantially parallel to one another.
- Fig. 2 shows an advantageous development of the method according to Fig. 1, wherein the reference numerals identical or equivalent features are taken.
- a further fluid flow 34 is provided, which preferably at least in the region of the pipe section 28 preferably parallel to the guide tube 21 and parallel to the arrival and Abströmachsen 14, 15 of the fluid flow 10 propagates.
- a free, partially guided and / or guided propagation of the further fluid flow 34 may be provided at least along the tube section 28 in the intermediate space 30.
- free propagation is understood to mean, in particular, a propagation in the intermediate space 30 limited only by the tube jacket 29 and the guide tube 21.
- a partially conducted propagation is understood to mean, in particular, at least section-wise conduction of the further fluid flow 34 or at least part flow diverted therefrom by means of line means (eg pipe segments, line elements, flow bodies or the like).
- a guided propagation is understood to mean a conduction of the further fluid flow 34 as total or partial flows by means of conduit means substantially closed with respect to the gap 30 (eg tube segments, guide elements, flow bodies or the like).
- the passage of the further fluid flow 34 shown in FIG. 2 or of the diverted partial flows thereof falls into the pipelines 35 passing through the intermediate space 30.
- the pipelines 35 are at least in one the process section 16 of FIG Fluid flow 10 overlapping or comprehensive portion 36 of the intermediate space 30 is arranged substantially parallel to the guide tube 21 and to the tube jacket 29.
- An interaction between the fluid flow 10 and the further fluid flow 34 flowing in the pipelines 35 essentially occurs in the flow-around section 17 of the fluid flow 10.
- the pipelines 35 or the further fluid flow 34 are flowed through substantially transversely, ie the respective ones Flow directions are substantially advantageously perpendicular to each other.
- the pipes 35 are at least approximately evenly spaced, preferably arranged almost homogeneously in the section 36 of the intermediate space 30.
- the pipelines 35 are at least part of a tube bundle system, so that the further fluid flow 34 is guided through a tube bundle system as a line system.
- the variant of the method according to FIG. 1 shown here by way of example is thus suitable in particular for a thermal interaction between the fluid flow 10 and the further fluid flow 34, since the pipelines 35 at least largely ensure direct contact of the fluid flows 10, 34. stop it.
- the method thus carried out is particularly suitable for use in designed as a heat exchanger and / or evaporator flow apparatus.
- the pipelines 35 it would also be conceivable for the pipelines 35 to be permeable or partially permeable at least in sections, with partially permeable in particular a filtering permeability, in particular a mechanically permeable permeability, and / or a selective permeability in the sense of a membrane effect, in particular a semiosmotic Membrane should be understood.
- the method according to the invention could advantageously be used for reactors, in particular chemical, biochemical or other process apparatuses, in which the reaction of at least partial components of one of the fluid flows 10, 34 with at least partial components of the respective other fluid flow 34, 10 arrives.
- the advantageous transverse flow described in the foregoing can advantageously contribute to a reaction zone, a reaction time, a reaction interval, a reaction energy or density and / or other reaction parameters in the reactor or the process apparatus having a reduced tolerance compared to the prior art ., or the reactor or the process apparatus can be designed accordingly.
- FIG. 3 shows a schematic longitudinal section through a flow apparatus 50 according to the invention.
- the flow apparatus 50 according to FIG. 3 is designed as an exemplary heat exchanger 51, ie, the flow apparatus 50, 51 essentially serves to exchange or transfer substantially heat energy of a first fluid flow 100 to a second or further fluid flow 340 or vice versa.
- the first fluid flow 100 corresponds in this case, in particular, to the fluid flow 10 flowing in the method, during the second or further fluid stream 340 of the further fluid flow 34 of the method described above can be assigned.
- the flow apparatus 50, 51 comprises a first conduit system 60 for passing the first fluid flow 100 and a further conduit system 70 for passing the further fluid flow 340.
- Each of the conduit systems 60, 70 has an inflow-side input port 61, 71 and a outflow-side outlet port 62, 72 on.
- the inlet connections 61, 71 with respect to the fluid flows 100, 340 include inflow regions 61b, 71b.
- the output connections 62, 72 similarly include outflow regions 62b, 72b of the fluid streams 100, 340.
- an input flange 61a is indicated at the input connection 61 of the first line system 60, and an output flange 62a at the output connection 62.
- the terminals 71, 72 of the second conduit system 70 are shown as a nozzle 71 a, 72 a.
- connections known to those skilled in the art (eg, press, screw, solder and / or welded joints) or line connection systems with their interfaces (eg bayonet systems, profile flanges, etc.) in the field of connections 61, 62, 71, 72 may be provided.
- the first line system 60 further comprises a guide tube 21, which adjoins the input connection 61 and continues in a substantially straight line up to the output connection 62.
- the guide tube 21 consists of an elongated hollow body 210 whose shell 21 1 with its inner surface 212, the first fluid flow 100 encloses substantially radially and axially.
- the hollow body 210 is preferably a hollow cylinder, but may also be a hollow cone, a hollow pyramid or another hollow body, which preferably has a main expansion direction, ie an elongation, which is also a major axis 213 of the inner cavity, at both ends of the Input and the output terminal 61, 62 are arranged.
- the inflow axis 102 and the outflow axis 103 are preferably aligned parallel, in particular coaxially to the main axis 213 of the cavity 210.
- an inflow axis 102 and an outflow axis 103 of the first fluid flow 100 are aligned parallel to one another, in particular coaxially to one another. They correspond to the inflow or outflow axis 14, 15 with regard to the flow of fluid 10 of the method according to FIG. 1.
- This arrangement allows particularly simple installation of the flow apparatus 50 in a straight-line section of an existing pipe system (eg flue gas or exhaust gas system, supply and / or disposal lines) that is present, without major changes or modifications to the pipe system Inventory system would have to be made.
- the second line system 70 has a distributor head 73 between the inlet and outlet connections 71, 72 and a tube bundle system 74 which adjoins the distributor head 73 and communicates with its interior.
- the distributor head 73 is arranged radially around the output connection 62 of the first line system 60 as shown in FIG. However, it can also be provided to arrange the distributor head 73 in the vicinity of the input connection 61, in particular radially around it.
- the distributor head 73 can also be arranged as an axial attachment component, in particular on the tube jacket 29.
- the distributor head 73 has a flange surface 73b on which the tube jacket 29 is arranged and preferably fastened via a mounting portion 295 in the mounted state.
- the mounting portion 295 of the tubular jacket 29 is preferably formed on the flange 73b tuned contact surface.
- the pipe jacket 29 is screwed to the flange 73b and / or jammed and / or wedged and / or welded and / or soldered and / or glued to the pipe jacket 29 for a ready state of the flow apparatus 50, 51st provide.
- the distributor head 73 further comprises a distributor space 73c into which the inlet and outlet ports 71, 72 open. In the embodiment according to FIG. 3, at least one inlet chamber 730 and at least one outlet chamber 731 are provided in the distributor space 73c.
- the two chambers 730, 731 are each provided on one side of the output connection 62, as shown in section.
- the distributor head 73 in the example according to FIG. 3 can also be designed as an annular system of at least two chambers 730, 731 separated from one another in the distributor head 73.
- the tube bundle system 74 has, in the operational state of the flow apparatus 50, an axial main extension in the direction 101 of the inlet and outlet axes 102, 103 of the first fluid flow 100 or in the direction of the main expansion direction of the guide tube 21.
- the second fluid flow 340 after entering the second conduit system 70, flows into the inlet chamber 730 of the distributor head 73. From the inlet chamber 730, the fluid flow 340 enters the tube bundle system 74, preferably dividing the fluid flow 340 parallel with the inlet chamber 730 communicating, acting analog tube bundle 740 or pipe loops 741 may be provided in part streams.
- an effective arrangement of two pipe loops is shown on the distributor head. Depending on the application, the number of pipe loops can vary.
- the tube loops 741 connect the input chamber 730 to the output chamber 731, so that the second fluid flow 340 can flow through the respective partial flows through a respective tube loop 741 from the inlet chamber 730 to the outlet chamber 731.
- the tube loops 741 have, according to FIG. 3, two substantially rectilinear legs 742 and a turning section 743.
- a sum of the lengths of the legs 742 is preferably greater than the turn section 743, in particular at least twice, preferably at least three times, particularly preferably at least four times as long.
- the legs 742 according to FIG. 3 are aligned substantially parallel to the main axis 213, whereby a main flow axis 341 of the second fluid flow 340 or of its partial flows in the second conduit system 70 parallel to the arrival and downstream axis 102, 103 of first fluid stream 100 is oriented.
- the tube loops 741 are designed, for example, screwed in or twisted along the main flow axis 341.
- the input port 71, 71 a and the output port 72, 72 a of the second conduit system 70 are arranged on opposite side surfaces of the distributor head 73.
- the connections 71, 72 are preferably provided lying in a plane on the distributor head 73, wherein they are in particular aligned parallel to one another, particularly preferably coaxially with one another.
- the flow axes resulting through the connections 71, 72 are preferably likewise parallel, preferably coaxial. In the embodiment according to FIG. 3, these flow axes of the connections 71, 72 are essentially perpendicular to the outflow axis 103 of the first fluid flow 100 or the outflow connection 62.
- connections 61 or 62 at a different non-zero angle to the terminals 71, 72 is aligned.
- the flow body 80 have the task of reducing turbulence tendency of the inflowing or outflowing fluid flow 340 by suitable flow guidance advantageous.
- the inflow-side flow body 80a thereby promotes the passage of the inflowing fluid 340 from the line cross-section of the input port 71 into the input chamber 730, while the outflow-side flow body 80b supports the outflow of the fluid flow 340 from the output chamber 731 into the line cross-section of the output port 72.
- the flow bodies 80, 80 a, 80 b have at least one steering section 81 that at least partially deflects the fluid flow 340.
- the steering section 81 may be formed symmetrically, in particular mirror-symmetrically or rotationally symmetrically with respect to the main flow axis 341, in particular an inlet or outlet axis 342, 343.
- the steering section 81 may also be advantageous if the steering section 81 has an asymmetrical shape.
- the flow bodies 80a, 80b are furthermore of essentially identical design, at least as far as the design of their steering sections 81 is concerned, which in particular advantageously reduces the number of different assembly elements during assembly or maintenance.
- the flow body 80, 80 a, 80 b preferably has an arrangement section 82.
- This can be used, for example, as a line cross-section of the line at the installation site.
- the press or clamping connection can be easily used, in particular, if the geometry of the line cross section at the intended installation location does not become too complex, in particular following a rather simple geometry (eg circle, ellipse, triangle, square).
- connection technology could be used at the arrangement section 82, such as a clip connection to surface structures present in the region of the installation location in the line system 70 or else subsequently attachable or insertable, such as projections, undercuts or the like.
- a cohesive in particular a releasable cohesive connection by gluing, soldering and / or welding for mounting the flow body 80 in the conduit system 70 is conceivable.
- FIGS. 4a to 4c show a few possible variants of flow bodies 80, each in cross-section.
- FIG. 4a A first embodiment of a flow body 80 is shown in FIG. 4a.
- the flow body 80 is sleeve-like, wherein the steering section 81 merges into the arrangement section 82, in particular substantially in one piece with this, wherein the sections 81, 82 need not necessarily consist of one and the same material. Rather, it is conceivable that different materials can be selected depending on your task.
- the locating portion 82 may be made of a material particularly suitable for connection (e.g., a metal and / or a metal alloy and / or a plastic and / or composite) while the steering portion 81 may be made of an inflow-flow material Fluid flow and / or a formability or shaping for the production of the steering geometry particularly suitable material (eg., A metal and / or a metal alloy and / or a plastic and / or a composite material and / or a ceramic), wherein in the choice of materials, the properties of the fluid body acting on the flow body during operation and the environmental parameters will have to be considered. If the two sections 81, 82 consist of different materials, these are connected to one another for an embodiment according to FIG.
- a material particularly suitable for connection e.g., a metal and / or a metal alloy and / or a plastic and / or composite
- Fluid flow and / or a formability or shaping for the production of the steering geometry particularly suitable material (eg., A metal and / or
- a flow body 80 according to FIG. 4a can be produced in a particularly simple manner from a continuous material.
- the flow body 80 according to FIG. 4 a could be produced by deformation, in particular a sheet metal, mold sintering, metal or plastic injection molding or by a similar method.
- the locating portion 82 is designed as a substantially cylindrical sleeve body, which is inserted at the mounting point in the line cross section of the conduit system.
- a particularly simple assembly is possible by a clamping or press connection between an outer circumferential surface 820 of the arrangement portion 82 and an inner wall of the conduit system at the mounting location. If the flow body 80 in particular arranged releasably at their mounting locations in the flow apparatus 50, they can also be easily removed, cleaned and / or exchanged in the context of maintenance.
- the also sleeve-like steering section 81 is exemplified here as a diffuser cone 810 opening away from the arrangement section 82.
- the diffuser cone 810 has a curvature radius KR which is substantially constant over a curvature length and symmetrical with respect to a center axis 83.
- the radius of curvature KR is not constant and / or not symmetrical.
- a flow body 80 according to FIG. 4 a can also be used, in particular, advantageously for the subsequent induction of a rounded transition edge on cross-sectional jumps in conduit systems. This is particularly advantageous if a direct rounding on the lines in the region of the cross-sectional jump is not or only possible with difficulty and / or if an optimal rounding course during operation of the line system in question is not known or determinable from the outset.
- FIG. 4b shows an expanded embodiment of a flow body 80 in which the steering section 81 is connected, in particular held, to the arrangement section 82 via a support structure 84.
- the arrangement section 82 is analogous to the embodiment of FIG. 4a designed as a substantially cylindrical sleeve body, which makes a clamping or press connection between a researchertelflä surface 820 of the arrangement section 82 and an inner wall of the conduit system at the mounting location in a simple manner possible.
- the steering portion 81 is connected via bridge-like connections of the support structure 84 with the arrangement portion, in particular arranged aligned to this.
- the arrangement of the connecting bridges 840 of the support structure 84 on the arrangement section 82 preferably takes place on an inner circumferential surface 821, but may for example also be provided on at least one end side 822 of the arrangement section 82.
- the arrangement of the connecting bridges 840 of the support structure 84 on the steering section 81 is preferably carried out on an outer wall 81 1.
- the steering section 81 itself is in turn formed sleeve-like, wherein the separated from the arrangement section 82 a comparison with the embodiment of Fig. 4a the expert advantageously increased design flexibility (for example, a choice of wall thickness and / or more complex shape and / or increased degree of freedom in the choice of material less restricted by connection technology).
- design flexibility for example, a choice of wall thickness and / or more complex shape and / or increased degree of freedom in the choice of material less restricted by connection technology.
- an embodiment could also be considered in which the flow-conducting properties of the steering section 81 change as a function of flow parameters (eg pressure, temperature and / or flow velocity, composition, etc.).
- a bimetal design of a steering section 81 could change the radius of curvature depending on the temperature.
- the formation of pressure-sensitive deformable surface structures may be advantageous.
- a wall thickness of the steering section 81 is significantly reduced compared to that of the arrangement section 82.
- 5 shows two projection views of an exemplary,
- the steering section 81 can also be designed as a grid-like structure of steering wings. Also conceivable would be a nested on the center axis 83 nesting of several, connected via the support structure 84 to the arrangement portion 82 steering sections 81 conceivable, in particular the so nested steering sections 81 in terms of their axial position with respect to the sleeve of the arrangement portion 82 and / or its geometry, structure and / or materials. Due to this variety of design parameters, particularly effective flow bodies 80 can be produced with regard to their flow influencing, which flow systems 80 are particularly effective in the initial state when there is a strong tendency for turbulence in a line system. H. without this additional measure, can be used.
- FIG. 4 c shows a third embodiment variant of a flow body 80, in which a support structure 84, as is known from the preceding example, is dispensed with. Rather, a sleeve-like steering section 81 designed analogously to the previous example is arranged directly on the inner circumferential surface 821 of the arrangement section 82 or vice versa. prevented. In this case, in particular a clamping or press connection between the outer wall 81 1 of the steering portion 81 and the inner circumferential surface 821 of the arrangement portion 82 may be provided. Alternatively or additionally, however, other joining techniques, such as gluing, soldering, welding, clipping or locking but also screws or pegs can be used.
- flow bodies 80 shown in FIGS. 4a-4c represent only exemplary examples of these means for optimizing flow progressions.
- the person skilled in the art easily becomes modified but ultimately equivalent embodiments of flow bodies 80 by combining the individual features disclosed in detail in the examples come with a suitable steering section 81.
- it can also be advantageous for the operation of a flow apparatus if similar flow bodies 80 are arranged in other conduit regions of a conduit system, in particular a change in cross section and / or a flow diversion.
- flow bodies 80 are only in the area of the inlet connection 71 and outlet connection 72.
- similar flow bodies 80 can also be provided at other suitable locations of the conduit systems 60, 70 of the flow apparatus 50, 51. be arranged.
- the transitions between the inlet or outlet chamber 730, 731 and the tube bundle system 74 can be aerodynamically optimized by means of a corresponding arrangement of flow bodies 80.
- the formation of the flow body 80 as a subassembly initially independent of the target line system also allows already installed flow apparatuses (such as eg heat exchangers, evaporators, boilers etc.) and / or line systems by retrofitting flow bodies 80 to optimize flow.
- flow apparatuses such as eg heat exchangers, evaporators, boilers etc.
- retrofitting flow bodies 80 could thus be provided as pre-assembled units, in particular for standardized line sizes, and could also be used advantageously independently of the flow apparatus according to the invention.
- a hood-like tube jacket 29 is arranged in the flow apparatus according to FIG.
- the tube jacket 29 extends at least along the main axis 213 of the first line system 60 and covers or spans at least the tube bundle system 74 of the second line system 70.
- the intermediate space 30 thus resulting between the guide tube 21 and the tube jacket 29 is applied at one of the Distributor head 73 opposite end by a bottom 290 completed.
- At least one, preferably a plurality of stabilizer 294 is provided in the tube jacket 29 intended.
- the stabilizer 294 may be formed as a grid and / or support structure through which the tube loops 741, in particular individual pipes of the tube bundle system 74, can reach through and thereby guided in at least one spatial direction against displacement from its rest position, supported or secured.
- a partition wall 22 is arranged in the interior of a section of the guide tube 21 enclosed by the tube jacket 29.
- the separating wall 22 separates an inflow-side region 214 of the guide tube 21 coming from the input connection 61 from an outflow-side region 215 which is directed towards the output connection 62
- the partition wall 22 is designed substantially as a rectilinear, planar wall which is arranged in the interior such that a cross-sectional area of the interior of the upstream-side region 214 of the guide tube 21 increases with increasing distance from the input connection 61 to almost the same extent decreases as a cross section of the discharge-side region 215 increases. This is, as shown in Fig.
- Fig. 3 particularly easy to achieve by tilting the partition wall 22 in at least one axis perpendicular to the main axis 213. Notwithstanding the embodiment of Fig. 3, it may also be advantageous if the partition wall 22 is tilted in a second, perpendicular to the main axis 213 axis and / or if the partition wall 22 is not rectilinear, but a surface profile (eg , stepped, angled, parabolic, hyperbolic, or the like) following, in particular, a surface profile dependent on the axial position along the main axis 213 is subsequently formed or shaped so that the cross section in the inflow and / or outflow side region 214, 215 a more complex function of the position along the major axis 213 may be.
- a surface profile eg , stepped, angled, parabolic, hyperbolic, or the like
- the partition wall 22 is designed as a component of guide means 20 double-walled.
- a first wall segment 220 is advantageously connected in particular to the upstream side region 214 of the jacket 21 1 or of the guide tube 21, while a second wall segment 221 is connected to the downstream side region 215.
- an insulation 223 may additionally be provided in an intermediate space 222 between the wall segments 220, 221, it can advantageously be ensured that an inflow section 120 of the first fluid flow 100 can interact as little as possible with an outflow section 130 thereof.
- the insulation 223 can by a suitable insulation or Danish material with the lowest possible thermal conductivity and / or a sealing strip and / or inclusion of an evacuated area in the intermediate space 222 can be achieved.
- the guide tube 21, in particular the jacket 21 has at least one radial passage 27, 32 both in the inflow-side region 214 and in the downstream-side region 215. In the example according to FIG. 3, three radial passages 27 are provided along the inflow-side region.
- three radial passages 32 are also provided according to FIG. 3 in the outflow-side region 215.
- the first two radial passages 27 along the inflow axis 102 are additionally provided, as shown in FIG. 3, in each case with a flow guide body 64.
- these are arranged along the inflow axis 102 axially behind the respective radial passages and extend substantially into the interior space of the guide tube 21.
- this flow guide body 64 is to favor a division of the first fluid flow 100 into radial partial flows 260 passing through the respective radial passages 27 through the arrangement according to the invention of the dividing wall 22, in particular to homogenize the partial flows 260 among one another.
- the representation in Fig. 3 should be understood only as an exemplary embodiment.
- the provision of flow guide bodies 64 may, under some circumstances, bring about advantageous effects on all or at least one other selection of radial passages 27, 32.
- the arrangement of the flow guide body 64 with respect to the respectively associated radial passage 27, 32 can deviate from the representation according to FIG.
- the radial passages 27 can act as a means for adjusting the sense of rotation.
- deflecting bodies which are not illustrated here and which are suitable for adjusting the direction of rotation of the partial flows 260 may also be provided as such means on an inner side of the tubular jacket 29 substantially opposite the radial passages 27.
- a flow apparatus 50 for the exchange of heat energy between a first, heat energy-carrying fluid stream 100 and a second, heat-absorbing fluid flow 340.
- An embodiment according to FIG. 3 is particularly suitable for a large-volume first fluid flow 100 in the event of heat transfer to a second fluid flow 340 having a lower volume flow.
- Such applications can be found for example in the form of preheaters and / or evaporators in heat-power plants after the Rankine cycle, d. H. in particular plants for the recovery and conversion of energy from heat-conducting fluid streams 100 (eg, flue gases or exhaust gases from, for example, industrial processes, other thermal or solar thermal heated fluid streams, etc.).
- the heat-absorbing fluid stream 340 (eg, a working fluid of a heat-power plant, in particular an organic working fluid of an ORC plant) is supplied through the input port 71 of the second conduit system 70 to the flow apparatus 50 and flows out of the inlet chamber 730, via which in the intermediate space 30 extending tube bundle system 74 to the outlet chamber 731.
- the heat-conducting fluid flow 100 (eg hot smoke and / or exhaust gas) in turn is supplied to the first conduit system 60 of the flow apparatus 50 via the inlet connection 61 in the flow-through region 61 b.
- the fluid flow 100 now propagates along the inflow axis 102 in the inflow-side region 214 of the guide tube 21 and is deflected and divided into radial partial flows 104 in interaction with the dividing wall 22.
- These partial flows 104 enter the intermediate space 30 through the inflow-side radial passages.
- the partial flows 104 are respectively deflected into a circumferential flow along the circumferential line 18 or along substantially parallel running circumferential lines 18, each partial flow 104 thus having a flow around section 17.
- the entire area of the circulating partial flows 104 can also be referred to as Umströmungs Society105.
- the partial flows 104 in this case flow around the tube bundles 740 or tube loops 741 of the tube bundle system 74 in a direction transverse to a running direction of the tube bundle system 74, in particular transversely to the legs 742 of the tube loops 741.
- the second fluid flow 340 or its portions flowing through the tube loops 741 are flowed substantially transversely from the partial flows 104, so that a heat transfer in the contact zones forming thereby is locally optimized.
- the working medium is passed through the tube bundle system 74 that the partial streams 104 of the heat-conducting fluid stream 100 as much heat on the Hämedi- In order to transfer that the working medium, preferably near complete, can be converted from a liquid phase to a vapor or gas phase.
- Fig. 6 shows a section through the flow apparatus 50 of FIG. 3 along the line A - A.
- the radial passages 27 and the radial passages 32 in the present example substantially on Arranged opposite sides of the guide tube. This is Fig. 6 again clearer.
- each partial flow 104 circulates or surrounds the guide tube 21 and thus the inlet or outlet axis 102, 103 of the heat-conducting fluid flow 100 by a circumferential angle UW of approximately 360 °.
- UW circumferential angle
- the partial flows 104 at the radial passages 32 enter the outflow-side region 215 of the guide tube 21.
- the partial streams 104 are again deflected in the axial direction and merged as shown in FIG.
- the fluid flow 100 "cooled down" by heat transfer to the second fluid flow 340 leaves the flow apparatus 50 through the outlet connection 62.
- FIGS. 7a and 7b show two preferred variants of the distributor head 73 according to FIG. 3 as an end projection.
- the distributor head 73 is designed as an annular channel 732 extending around the first line system 60, in particular the output connection 62.
- the distributor head 73 can also be arranged around the input connection 61 of the first line system 60.
- the input chamber 730 and the output chamber 731 are arranged on opposite sides, separated by partitions 733 from each other.
- Both the inlet chamber 730 and the outlet chamber 731 are formed in the annular channel 732 in the circumferential direction around the outlet port 62 by two partition walls 733 spaced apart from each other at an angular distance.
- the input and output chambers 730, 731 have a substantially identical cross section in the projection plane shown.
- an internal volume of the inlet and outlet chambers 730, 731 is substantially equal.
- the cross-sections and / or the inner volumes of the input chamber 730 and the output chamber 731 are executed differently from each other.
- a volume flow of the second fluid flow 340 between the input and output chambers 730, 731 typically increases.
- the outlet chamber 731 may have an inner volume that is larger than the input chamber 730.
- the flow apparatus 50 is used as a condenser, it may be advantageous if the internal volume of the outlet chamber 731 is reduced from the internal volume of the inlet chamber 730.
- mung apparatus 50 known to promote or require the divergent cross sections and / or volumes of the input chamber 730 and the output chamber 731.
- a further dividing wall 733 is arranged in each case around the outlet connection 62 between the inlet chamber 730 and the outlet chamber 731 in both directions of circulation such that two additional intermediate chambers 734, 734a-734d are formed in the annular channel.
- the intermediate chambers 734a-734d preferably have a substantially identical cross-section in the projection plane shown in FIG. 7a.
- an internal volume of the intermediate chambers 734, 734a-734d is substantially the same.
- the input chamber 730 is connected to one of the two intermediate chambers 734a, 734b via a first set of tube loops 741, 741a, so that partial streams of the second fluid flow 340 supplied via the inlet port 71 are transferred via this first tube loop set 741a into one of two intermediate chambers 734a, 734b can flow.
- Each of the intermediate chambers 734a, 734b is further connected via a respective subset of tube loops 741 b with one of the intermediate chambers 734c, 734d, so that the partial flows through the space 30 again twice in this stage.
- each of the intermediate chambers 734c, 734d is connected via a further subset of tube loops 741 c to the output chamber 731, whereby the partial flows flow through the intermediate space 30 twice for the last time.
- each partial flow of the fluid flow 340 passes through the interior space 30 between the inlet chamber 730 and the outlet chamber 731 in total six times, ie six passages of the fluid flow 340 through the interior 30 take place.
- three partition walls are arranged between the input chamber 730 and the outlet chamber 731 in total in each circumferential direction about the output connection 72.
- a total of four pairs of intermediate chambers 734a-734h are formed in an analogous manner, for example according to FIG. 7a.
- adjacent chambers 730, 734a, 734c, 734e, 734g, 731 are connected in succession via sets or subsets of pipe loops 741a, 741b, 741c, 741d and 741e.
- the partial flows of the liquid idstroms 340 pass a total of ten times through the intermediate space 30, ie ten passages of the fluid flow 340 through the inner space 30 take place.
- interconnections of the second conduit system 70 via the distributor head 73 shown in FIGS. 7a and 7b and described above are to be understood as exemplary embodiments only as examples.
- other interconnections of input chamber 730, intermediate chambers 734 and / or output chamber 731 may provide advantageous arrangements.
- the number of intermediate chambers 734 may differ from the examples shown here, in particular it would also be conceivable that the number and / or the execution of the intermediate chambers 734 along both directions of rotation around the terminal 62 or 61 differ from each other to allow an advantageous embodiment.
- the flow apparatus 50 can be realized in a variant not shown here with substantially rectilinear pipe sections.
- the pipe sections as well as the pipe loops 741 are connected to the distributor head 73, in particular to the annular channel 732 thereof, and extend into the intermediate space 30.
- the pipe sections pass through the intermediate space 30 such that they intersect at an end remote from the annular channel 732 Open collecting channel.
- the collecting channel can be connected both to the outlet chamber 731 and also to have at least one separate outlet connection, which then preferably forms the outlet connection 72 of the second conduit system 70.
- a particularly preferred development of a distributor head 73 may be offered.
- this has a closure lid 73a, which is not shown in detail here, the annular channel 732 releasably terminating to an end face, whereby the annular channel 732 can be opened and closed in a distributive manner for maintenance purposes and / or for adjustments.
- the closure lid 73a can be designed as a screw cap and / or with another closure mechanism, such as a screw, a clamping or wedge mechanism or the like.
- a releasable VerMANde- disgust 73a allows to perform the partition walls 733 interchangeable and / or displaceable in the direction of rotation in the annular channel. If the dividing walls 733 can be offset and / or varied in number between the inlet chamber 730 and the outlet chamber 731, the configuration and / or the number of intermediate chambers 734 can be varied. As a result, a pass number or number of passages of the second fluid flow 340 can advantageously be adapted through the intermediate space 30 in the second conduit system 70 of the flow apparatus 50, 51. However, a serviceable closure cap 73a may also be advantageous in dispensing heads 73 as shown in the exemplary flow apparatus 50 of FIG.
- a separating device 90 is arranged at the outlet connection 72 of the second line system 70, in particular at the outlet chamber 731 adjoining the outlet section 735.
- the separation device 90 is designed as a droplet separator.
- An am Distributor head 73 arranged, integrated or at least with the output chamber 731 operatively connected demister 90 may be particularly advantageous when the flow apparatus 50, 51 is used as an evaporator for the second fluid flow 340.
- the second, in the input chamber 730 substantially liquid fluid flow 340 in the course of its passage through the second conduit system 70, in particular by the gap 30 only partially, in particular not completely transferred from a liquid phase into a vapor phase.
- a second fluid stream 340 leaving the outlet chamber 731 carries at least liquid portions (eg in the form of drops) which may interfere with downstream processes or devices. If the distributor head 73 of the flow apparatus 50, 51 according to FIG. 8 is now executed, these effects can be prevented.
- the arrangement or integration of the separation device 90 on the distributor head 73 allows an advantageously simple recycling of the separation material, in particular the condensate or the residual liquid in at least one of the chambers 730, 734.
- a separation chamber 900 via at least one return line 901 with the input chamber 730 and / or an intermediate chamber 734.
- the return can be effected by simple utilization of gravity and / or a special embodiment of the return line 901.
- the separation chamber 901 is connected to the chamber 730, 734 via the return line 901 in such a way that the precipitate, in particular the condensate or the separated residual liquid, can flow back into it.
- the return line can be designed so that the separation material, in particular the condensate or the separated residual liquid is pressed or sucked by the flow of the fluid flow 340 into or through the chambers 730, 734 in the connected via the return line chamber 730, 734 ,
- the separation device 90 may include a recirculation device (eg, a pump or the like) that provides the deposition material from the separation chamber 900 via the return line 901.
- 9 shows a further, advantageous development of the flow apparatus 50, 51 according to the invention according to FIG. 3. This development is characterized by a device 91 arranged on or in the pipe jacket 29 for the separation and discharge of particles.
- the device 91 is arranged at least on one side along the guide tube 21.
- the device 91 is preferably integrated in or dismantled in the flow apparatus 50 in such a way that, when the flow apparatus 50, 51 is ready for operation, the apparatus 91 extends into a radial region 291 radially adjacent to the region of the tube bundle system 74.
- the device 91 is particularly preferably arranged on or in the tube jacket 29 so that solids, in particular particles, carried in the radial flows 26 and / or the circumferential flows 31 of the fluid flow 100 reach the radial region 291.
- a separator 910 In the radial region 291, a separator 910, a collection region 91 1 and preferably a delivery unit 912, in particular a discharge screw, of the device 91 are provided.
- the separator 910 may be formed as a simple separation opening or Abscheideschlitz and / or as a Abscheidegitter, -sieb and / or filter, which is capable of carrying in the fluid stream 100 and in the partial flow of solids, in particular particles (eg. As carbon black, crystallites, or the like) can be separated from the further flowing fluid.
- the separator 910 can also be a separator based on an electrical, magnetic or electromagnetic field, which is suitable for separating the solids entrained in the fluid flow 100 or in its partial flow.
- the solids or particles separated from the fluid stream 100 by the separator 910 are collected in the collecting area 91 1 and, if appropriate, temporarily stored. saved.
- the collecting area 91 1 can be designed as collecting volume, container or space.
- the collecting region 91 1 has suitable collecting or storage elements for receiving the solids or particles deposited in the separator 910.
- a particularly preferred apparatus 91 further comprises a conveying unit 912 engaging in the collecting area 91 1 for the continuous, cyclical or occasional discharge of solids or particles collected in the collecting area 91 1, so that a continuous operation of the flow apparatus 50, 51 is also preferred at least temporarily solids fluid flow 100 is possible.
- FIG. 9 shows a first preferred embodiment of a flow apparatus 50, 51 with a device 91.
- the separator 910 is designed as at least one radial opening 910a, which is provided in an intermediate wall 292 or a side wall 293 of the tubular jacket 29. If the separator 910 is arranged in the intermediate wall 292, the collecting region 91 1 and the conveying unit 912 can be integrated into the intermediate space 30 in the pipe jacket 29.
- the separator 910 is integrated into the side wall 293 of the tube jacket 29, in particular as a radial opening 910a, introduced into the side wall 293 of the tube jacket 29.
- the collecting area 91 1 is thereby formed by an attachment collecting container 91 1 a, which covers at least the area of the separator 910, 910 a in the side wall 293.
- the assembly storage container 91 1 a can be designed as a collection container, in particular interchangeable, maintainable and / or emptying collection container.
- a discharge screw 912a is disposed in the crop collecting tank 91 1 a.
- the discharge screw 912a conveys the particles located in the collecting region 91 1, 91 1 a in the direction of a discharge opening 91 1 b in the assembly container 91 1 a.
- the collected particles are now removed from the flow apparatus 50, 51 and from its active cycle.
- a closure device 913 such as a flap, a valve, a rotary valve or the like may be provided in the discharge opening 91 1 b. This closure device 913 serves in particular in a normal operation of the flow apparatus 50, 51 to prevent leakage of subsets of the fluid flow 100 via the discharge opening 91 1 b.
- the separator 910 has a device for intervention control and / or prevention of fluid leakage, in particular when the delivery unit 912 is activated.
- the separator 910 can additionally be designed to be closable, for which purpose, for example, closure flaps can be provided.
- the discharge screw 912a can preferably be driven via a drive motor 912b. If the drive motor 912b is switched and / or regulated via a suitable control, not shown here, the discharge of collected particles can advantageously be automated.
- the collecting area 91 1 can be monitored by a loading sensor in order to monitor a filling level and possibly to prevent overcharging.
- a cyclical initiation of the discharge process would also be conceivable in order to be able to feed the discharged material, even changing load of the fluid stream 100, to a subsequent process (eg preparation, cleaning, etc.) in a controlled manner.
- the embodiment with a mounting container 91 1 a or the arrangement of the device 91 in a mounting container 91 1 a, as shown in Fig. 9 as a particularly preferred embodiment, can also be a simple, advantageous retrofit already existing flow apparatus 50, 51 reach with a, traversed by particles loaded fluid flow pipe jacket 29.
- the pipe jacket 29 is provided on a side wall 293 with at least one separator 910, in particular a radial screen or filter 910a.
- the conveying unit 912 can, as indicated in Fig. 10, arranged in a mounting container 91 1 a and this subsequently attached to the pipe jacket 29 to the separator 910.
- no major modification to the flow apparatus 50, 51 itself is required.
- a system 52 of two flow apparatuses 50.1, 50.2 of FIG. 3 and the foregoing description is shown.
- the flow apparatuses 50.1, 50.2 are arranged sequentially one after the other with respect to the first conduit system 60.1, 60.2, wherein the two flow apparatuses 50.1, 50.2 are preferably mirrored, in particular on a plane perpendicular to the inlet and outlet axes 102.1, 103.1; 102.2, 103.2 are arranged to each other.
- the output connection 62.1 of the first flow apparatus 50.1 is preferably arranged coaxially with the input connection 61 .2 of the second flow apparatus 50.2.
- the output connection 62.1 and the input connection 61 .2 are in this case connected directly to one another, so that a fluid flow 100 flowing out of the output connection 62.1 is supplied to the input connection 61 .2.
- the input and the output connection 61 .2, 62.2 of the first line system 60.2 exchange their function, so that the designation in the description of the system 52 changes to this function exchange was adjusted.
- the second line systems 70.1, 70.2 are connected to one another in the exemplary system 52 according to FIG. 10 via a connection line 75 such that fluid emerging from the outlet connection 72.2 of the flow apparatus 50.2 is supplied to the inlet connection 71 .1 of the flow apparatus 50.1.
- the input connection 71 .2 serves as an input connection of the second line system 70 of the system. tems 52, while the output terminal 72.1 acts as an output terminal of the second conduit system 70 of the system 52.
- the heat transfer from the first fluid flow 100 to the second fluid flow 340 or vice versa occurs in two stages: First, the first fluid flow 100 already pre-cooled in the first flow apparatus 50.1 acts in the second flow apparatus 50.2 for preheating one The second fluid flow 340 freshly supplied in the second flow apparatus 50.2 is then subjected to a main heating in the second heating stage in the first flow apparatus 50.1 by heat-transferring contact with the first fluid 100 freshly supplied via the input connection 61 .1 before it is provided via the output terminal 72.1 of the system 52. In the course of the main heating process, the freshly supplied first fluid 100 is transferred into a state as a pre-cooled fluid 100, which still serves as a heat source in the preheating process.
- the system 52 of FIG. 10 is particularly suitable as a compact and highly efficient preheater-evaporator combination for a heat and power plant, in particular an RC or ORC plant after the Rankine cycle, wherein a waste heat leading fluid flow 100 its heat energy to a high proportion over the said two stages (preheating and main heating / evaporation) can be transferred to a fluid flow 100 of a Häme- medium, in particular an organic working medium.
- FIG. 1 A basic scheme of such a heat-power plant, in particular ORC plant 95 is shown in Fig. 1 1.
- ORC plant 95 A variety of extended schemes of a heat-power plant according to FIG. 11 are known to the person skilled in the art, but they can advantageously benefit to a similar extent from a flow apparatus 50 or a system 52 according to FIG. In addition to a system 52 of two coupled flow apparatus 50.1, 50.2 um-
- the system 95 includes at least one turbine 950, a condenser 951 and a working fluid pump 952.
- the turbine 950 preferably drives a generator 953 for providing electric power from the recovered heat energy of a fluid flow 100.
- the turbine 950 is connected on the input side to a supply line 954 of a working medium circuit which leaves the output connection 72.1 of the system 52. Through the supply line 954 heated, preferably vaporized working fluid flows in the system 52 in the system 52 as id id flow 340 to the turbine 950.
- the working fluid of the fluid flow 340 is preferably almost completely in the system 52, at least in one of the flow apparatuses 50.1, 50.2 of Systems 52 vaporized or transferred into a vapor or gas phase.
- the inflowing working medium of the fluid flow 340 is at least partially decompressed, preferably substantially expanded, whereby the turbine 950 is driven.
- the relaxed working medium now flows via a return line 955 to the condenser 951, in which the working medium is cooled at least to a condensation point and preferably condensed out.
- the expanded working fluid is fed to a recuperator (not shown in FIG. 11) before it is introduced into the condenser 951, in order to make any residual heat energy otherwise usable.
- the working medium condensed in the condenser 951 is fed back to the system 52 by means of the working medium pump 952 via a supply line 956 and the inlet connection 71 .2, as a result of which the working medium circuit is substantially closed.
- the fluid flow 100 is supplied to the system 95 via an input connection 957, which is preferably connected directly to the input connection 61 .1 of the first flow apparatus 50. 1 of the system 52.
- the freshly supplied fluid 100 is first of all supplied to the main heating stage of the system. Tems 52 (flow apparatus 50.1) supplied to a heat transfer to a preheated in the preheating stage (flow apparatus 50.2) working fluid of the fluid flow 340 to maximize.
- the thus cooled fluid 100 is then used in the system 52 to the flow apparatus 50. 2 as a heat source for preheating the fresh working medium of the fluid flow 340 provided via the supply line 956.
- the fluid 100 is discharged from the system again via an outlet connection 958.
- the flow apparatus 50, 51 or the system 52 of two such flow apparatuses 50.1, 50.2, 51 .1, 51 .2 thus allows a particularly compact design of a heat-power plant 95, which at the same time by simply integrating measures to special requirements (eg fluid-laden fluid flows, varying heat outputs, etc.) can be adapted without having to leave the basic concept of FIG.
- devices 91 can be retrofitted or rebuilt at any time without having to completely disassemble the system 52.
- An adaptation of the passage numbers of the second conduit systems 70.1, 70.2 would also be possible without major expenditures, in particular if the distributor heads 73.1, 73.2 have corresponding closure covers.
- the flow apparatuses 50, 51 of the type according to the invention or systems 52 of flow apparatuses according to the invention are particularly suitable for the development of waste heat-carrying fluid streams 100 of incineration plants (eg thermal cleaning or oxidation plants, dryers, thermal process plants, furnaces or the like), fuel cells and Fuel cell systems, in particular coolant flows of high-temperature fuel cells and other industrial waste heat streams in RC or ORC systems of Fig. 1 1 shown by way of example.
- a heat-power plant in particular an ORC system 95 can the flow apparatus 50 according to the invention or a system but also in the chemical process engineering, heating technology and similar application can be used advantageously.
- FIG. 12 a shows a tube shape of the guide tube 21.
- the guide tube 21 has a dividing wall 22 made of two wall segments 220, 221, in particular two dividing plates, which are intended to separate the interior of the guide tube 21 diagonally into two regions 214, 215.
- the double design of the wall segments 220, 221 or separating plates serves for the additional thermal insulation between a Fluidein- and fluid outlet.
- the space 222 between the wall segments 220, 221 or separating plates can be either hollow or filled with additional insulating material.
- the wall segments 220, 221 or separating plates and the jacket 21 1 of the guide tube 21 are only on one side with the Jacket welded.
- the welding is preferably provided on opposite sides of the guide tube 21 in the assembled state.
- the guide tube 21 is preferably centrally in the longitudinal direction in two tube halves 21 a, 21 b separated.
- the shape of the prefabricated wall segments 220, 221 or separating plates preferably resembles an ellipse, wherein a dimension of the ellipse corresponds in particular to the sectional area integral if the tube blank were bisected in the diagonal direction over its entire length.
- a wall segment 220, 221 or a separating plate is fastened diagonally, preferably welded, in such a way that the wall segments 220, 221 or separating plates are joined in a subsequent joining of the tube halves 21 a, 21 b do not touch.
- the sealing strip 224 is preferably designed as a V-shaped folded metal strip, but may also have another suitable shape.
- openings in round or slot-shaped design are introduced into the guide tube 21 in vertically opposed, radial arrangement. During later operation, these serve as radial passages 27, 32 in the flow apparatus 50 according to the invention.
- the openings in the form of recesses are already introduced into tube halves 21 a, 21 b, which form the openings when they are joined together.
- the openings or recesses can preferably be punched out of the pipe part, cut or sawn.
- the wall segments or separating plates and openings are arranged in particular in the guide tube 21 that the incoming fluid leave the guide tube 21 directed radially outward and after flowing through the tube bundle gap 30 in the guide tube 21 can be directed radially inwardly.
- baffles arranged, in particular welded.
- the invention relates to a method for guiding a fluid flow 10 which has an inflow and an outflow section 12, 13 with a substantially parallel, preferably coaxial, inflow and outflow axis 14, 15. It is proposed that the fluid flow 10 is directed by at least one between the Anströmabêt 12 and the outflow 13 arranged guide means 20 in a Umströ- tion section 17 around a circumferential angle UW the arrival and Abströmachse 14, 15 radially circumferentially, the circumferential angle UW larger than 0 °.
- the invention relates to a flow apparatus 50 for carrying out a method comprising a first conduit system 60 for passing a first fluid flow 100, wherein the first conduit system 60 comprises a guide tube 21 and at least one, a flow direction of the fluid flow 100 influencing guide means 20, 22, so that the Fluid flow 100 between a Anström Society 61 b and a discharge region 62b of the first conduit system 60 flows around an arrival and / or Abströmachse 102, 103 in a Umströmungs Scheme 105 around a circumferential angle UW radially encircling.
- FIGS. 13a-13c and 14 show variants of a further development of the flow apparatus 50 according to FIG. 3, which additionally each have a bypass device 92. Identical or similar features to those described above are identified in these figures by the same reference numerals.
- the bypass device 92 has a bypass line 921, which extends as an exemplary cylindrical tube along the main axis 213 through the guide tube 21 of the first conduit system 60.
- the bypass line 921 is aligned coaxially with the main axis 213 and in particular formed concentrically to this.
- the bypass line 921 penetrates or breaks through the partition wall 22 arranged in the guide tube 21 so that the first fluid flow 100 flowing in via the inlet connection 61 can flow out in the direction of the outlet connection 62 via the bypass line 921, without passing through the guide means 20, 22 in FIG to reach the Umströmungs Scheme 105.
- the bypass line 921 as an insulated, in particular double-walled line or insulated, in particular double-walled tube is formed to thermal coupling between the flowing in the bypass line 921 ing portion A B p of the first fluid stream 100 and the in the guide tube 21 propagating portion 1 - A B p to prevent, but at least reduce.
- the bypass device 92 according to FIG. 13a has a bypass actuator 922.
- the bypass actuator 922 in particular has the task of this, a portion A B p of via the bypass line 921 flowing fluid stream 100 of the oncoming via the input terminal 61 first fluid stream 100 selectable or adjustable, in particular controllable carry out or make.
- the proportion A B p may have a value between 0% and 100%, in particular between 20% and 80%, preferably between about 30% and 70%.
- the bypass actuator 922 according to FIG. 13a comprises at least one flap 923 and a flow divider 924 arranged upstream of the flap 923 in the flow direction.
- the inlet connection 61 of the flow apparatus 50 is arranged directly at the flow splitter 924, while the flap 923 is arranged on or in the bypass line 921.
- the flap 923 is preferably arranged in the end region of the bypass line 921 facing the inlet connection 61.
- the flap 923 is in the open position or, as shown in FIG. 13a, in a partially open position, at least a portion corresponding to the portion A B p of the inflowing fluid stream 100 is discharged via the bypass line 921, wherein the bypass line 921 preferably has a relative to the first conduit system 60 has lower pressure difference or lower flow resistance. As a result, a correspondingly reduced proportion 1-A B p is available in the bypass region 105 for the interaction with the further fluid flow 340.
- the flap 923 is closed, the inflowing fluid stream 100 flows completely through the first line system 60 and thus completely rests in the circulating area 105.
- the bypass line 921 opens into a funnel-like flow collector 925 which distributes the portions 1-A BP flowing via the first line system 60 and the portions A BP of the first fluid stream 100 flowing via the bypass line 921 following the Umströnnungs Society 105 merges again and the output port 62 fed.
- flow body 93 is arranged to optimize a local flow profile, in particular to reduce or suppress turbulence formation and / or reduce local flow resistance.
- the flow body 93 are symmetrical, in particular adapted to the spatial shape of the guide tube 21 and / or the bypass line 921, preferably adapted symmetrically.
- the flow bodies 93 are themselves cylindrically symmetrical and have a deflection surface 931 facing the flow.
- the deflection surface 931 can have a constant in the circumferential direction cross-sectional profile. However, it may also be advantageous if the deflection surface 931 has a cross-sectional profile varying with the circumferential angle. This may be advantageous, in particular, when the partial streams 104 flowing out of the circulating area 105 are not distributed in a uniform manner over the circumferential angle, but in particular have preferred areas over the circumferential line.
- FIG. 13b shows a second variant of a flow apparatus 50 with a bypass device 92 arranged analogously to FIG. 13a.
- the bypass line 921 extends directly to the input connection 61.
- the flow divider 924 is formed by passages, in particular slots in the adjoining the input terminal 61 end portion of the bypass line 921. By means of these passages, a proportion 1-A B p of the fluid flow 100 flowing in via the inlet connection 61 can reach the first line system 60, in particular into the circulating area 105.
- the bypass actuator 922 in the example according to FIG.
- the 13b has two flaps 923, 923a, the flap 923 adjoining the end section of the bypass line 921 with the passages.
- the second flap 923 a is provided in an end region of the bypass line 921 facing the output port 62.
- the second flap 923a serves to prevent possible reflux from the flow collector 925 via the bypass line 921.
- the flow collector 925 is formed analogously to the example of FIG. 13a.
- the bypass line 921 is symmetrically constructed or formed with respect to its two end regions, so that flow dividers 924 and flow collectors 925 are constructed analogously to one another.
- no second flap 923a is provided in the bypass line 921.
- the example according to FIG. 13 a can be modified such that a second flap 923 a is provided in the bypass line 921 analogously to the example according to FIG. 13 b.
- FIG. 13b corresponds to the embodiment according to FIG. 13a.
- a second flap 923a as shown in Fig. 13b, be provided, it is advantageous if the two flaps 923, 923a with respect to the switching between see a closed and an open position to be moved synchronized.
- 13c shows a third variant of a flow apparatus 50 with a bypass device 92 arranged analogously to FIG. 13a. This variant grips the design of the flow passage in the bypass line 921. divider 924 of FIG. 13b, wherein the flap 923 of the bypass actuator 922 has been replaced by a slide assembly 926.
- the slider assembly 926 in this case has a the passage in at least one position closing sliding sleeve 926a, wherein the sliding sleeve 926a for switching from an open position to a closed position axially and / or radially displaced and / or rotated.
- a switching characteristic for controlling or adjusting the proportion 1-A B p can be determined, inter alia, via the number, shape and / or placement of the passages in the bypass line 921.
- Other variants of a flow apparatus according to FIGS. 13a to 13c result inter alia by combining the features shown individually in the examples.
- FIG. 14 shows an alternative flow apparatus 50 with a bypass device 92, which has an outboard bypass line 921.
- the bypass actuator 922 comprises a flap 923, which is arranged in an input-side section of the guide tube 21.
- the bypass line 921 is preferably designed or embodied as a tube-like hollow body 927 that is at least partially, preferably almost completely, accommodating and / or enclosing the tubular conduit 29, in particular the tubular jacket 29.
- the hollow body 927 extends in the example according to FIG. 14a along the main axis 213 parallel to the guide tube 21. It can be provided in particular that the hollow body 927 receives or encloses the guide tube such that the Input and output terminal 61, 62 of the first conduit system 60 as, in particular the front side of the hollow body 927 arranged flanges are formed.
- a funnel-like or fan-like section of the hollow body 927 adjoining the inlet connection 61 forms the flow divider 924 of the bypass actuator 922.
- the inlet and outlet connections 71, 72 of the second conduit system 70 follow the example of the flow apparatus 50 Fig. 3 are arranged on the distributor head 73 are thereby passed through the hollow body 927 so that they protrude from the wall of the hollow body 927 and within the area enclosed by the hollow body shell between the tube shell 29 and inner surface of the hollow body 927 at least partially from the proportion A B p of first fluid flow 100 can be flowed around.
- the hollow body 927 passes into the outlet connection 62 via an analogous funnel-like or fan-like section, which forms the flow collector 925.
- an optional second flap 923a can additionally be arranged in an end section of the guide tube 21 facing the outlet connection 62.
- Task of the flap 923a is analogous to the example of FIG. 13b, to prevent backflow into the guide tube 21, but at least to reduce.
- the flap 923 arranged in the guide tube 21 is provided or designed to provide a portion 1 - A B p, which can flow via the first line system 60, in a selectably adjustable or controllable manner.
- the proportion 1-A B p is maximized, while a fully closed position of the flap 923 or flaps 923, 923a maximizes the proportion A B p of FIG the bypass line 921 outflowing portion of the first fluid flow 100 leads.
- the hollow body 927 provided in the example according to FIG. 14 a is designed as an insulated hollow body, in particular double-walled hollow body, in order to prevent, at least reduce, unfavorable heating of the outer wall of the hollow body 927 with activated bypass, ie with a substantially closed flap 923 ,
- FIG. 14b now shows a second variant of a flow apparatus 50 with bypass line 921 arranged outside in the form of a hollow body 927, as already known from the example of FIG. 14a described above, to the description thereof with regard to the bypass line 921.
- the hollow body 927 is referenced at this point.
- the bypass actuator 922 is embodied in a manner analogous to FIG. 13c, for example, as a slide arrangement 926.
- the guide tube 21 extends over the full distance between the input and the output terminal 61, 62 and is provided in the overlapping areas with the flow divider 924 and flow collector 925 known from Fig. 14a with slot-like passages.
- At least the passages provided in the direction of the input connection 61 are selectable by means of a slide arrangement 926, can be opened and closed in an adjustable manner.
- a second slide arrangement 926a is furthermore provided for opening and closing the passages close to the outlet connection 62, which however can optionally also be dispensed with.
- This second slide assembly 926a is doing an analogous task as the second flap 923a from the examples of FIG. 13b or 14a, so that reference is made to the relevant description.
- the slide assemblies 926, 926a can be designed as axial and / or rotary slide, as they have already been described in the example of FIG. 13c.
- the bypass line 921 is not designed as an enclosing hollow body 927 but as one or more bypass channels extending on the outer wall of the tubular jacket 29 ,
- bypass actuator 922 can alternately close the bypass line 921 and the guide tube 21, which makes the flow guidance unambiguous over the bypass section 17 and / or the bypass favored.
- the respective throttle positions in particular an effective effective and be enabled by the bypass actuator 922 or released flow cross-section at the input portions of the bypass line 921 and guide tube 21 favorably inversely proportional to each other.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Exhaust Gas After Treatment (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102014201908.7A DE102014201908A1 (de) | 2014-02-03 | 2014-02-03 | Verfahren zur Führung eines Fluidstroms, Strömungsapparat und dessen Verwendung |
PCT/EP2015/051960 WO2015114105A2 (de) | 2014-02-03 | 2015-01-30 | Strömungsapparat und verfahren zur führung eines fluidstroms |
Publications (2)
Publication Number | Publication Date |
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EP3102899A2 true EP3102899A2 (de) | 2016-12-14 |
EP3102899B1 EP3102899B1 (de) | 2022-11-30 |
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Application Number | Title | Priority Date | Filing Date |
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EP15703755.7A Active EP3102899B1 (de) | 2014-02-03 | 2015-01-30 | Strömungsapparat zur führung eines fluidstroms |
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US (1) | US10386130B2 (de) |
EP (1) | EP3102899B1 (de) |
KR (1) | KR102301068B1 (de) |
CN (1) | CN105992927B (de) |
DE (1) | DE102014201908A1 (de) |
ES (1) | ES2937639T3 (de) |
PT (1) | PT3102899T (de) |
WO (1) | WO2015114105A2 (de) |
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2014
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-
2015
- 2015-01-30 KR KR1020167017624A patent/KR102301068B1/ko active IP Right Grant
- 2015-01-30 PT PT157037557T patent/PT3102899T/pt unknown
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- 2015-01-30 WO PCT/EP2015/051960 patent/WO2015114105A2/de active Application Filing
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- 2015-01-30 CN CN201580005991.5A patent/CN105992927B/zh active Active
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WO2015114105A2 (de) | 2015-08-06 |
WO2015114105A3 (de) | 2015-10-29 |
ES2937639T3 (es) | 2023-03-30 |
EP3102899B1 (de) | 2022-11-30 |
KR20160117423A (ko) | 2016-10-10 |
KR102301068B1 (ko) | 2021-09-14 |
US20160334175A1 (en) | 2016-11-17 |
DE102014201908A1 (de) | 2015-08-06 |
US10386130B2 (en) | 2019-08-20 |
CN105992927A (zh) | 2016-10-05 |
PT3102899T (pt) | 2023-02-01 |
CN105992927B (zh) | 2019-09-24 |
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