CN103575158A - Homogenisation device, heat exchanger assembly and method of homogenising a temperature distribution in a fluid stream - Google Patents
Homogenisation device, heat exchanger assembly and method of homogenising a temperature distribution in a fluid stream Download PDFInfo
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- CN103575158A CN103575158A CN201310302880.3A CN201310302880A CN103575158A CN 103575158 A CN103575158 A CN 103575158A CN 201310302880 A CN201310302880 A CN 201310302880A CN 103575158 A CN103575158 A CN 103575158A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
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- 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
- F28F9/0263—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry or cross-section of header box
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- 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
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- 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
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
A homogenisation device (10) which is in particular suitable to homogenise a temperature distribution in a fluid stream exiting a heat exchanger comprises a body (12) with a fluid flow passage (14) extending therethrough. The homogenisation device (10) further comprises a flow control device (20) which is disposed in the fluid flow passage (14) and which is configured to induce a swirl (S) in an outer layer (32) of a fluid stream flowing through the fluid flow passage (14), while the flow characteristics of a core layer (34) of the fluid stream remain substantially unaffected by the flow control device (20).
Description
Technical field
The present invention relates to a kind of homogenization installation, a kind of heat exchanger assemblies of homogenization installation and method of the Temperature Distribution in a kind of homogenizing fluid stream of comprising.
Background technology
The fluid stream that leaves heat exchanger is usually displayed on one side of exit face of heat exchanger to the thermograde of another side, the degree of accuracy that this temperature sensor that may affect heat exchanger downstream is measured.And, from one side of the exit face of heat exchanger to the thermograde of another side, may hinder the primary fluid stream of leaving heat exchanger is divided into two or more shunting bodies streams with essentially identical temperature.
Summary of the invention
The object of the present invention is to provide a kind of homogenization installation, this homogenization installation allows the fluid stream that leaves heat exchanger on one side of the exit face of heat exchanger, to arrive the quick and reliable homogenizing of Temperature Distribution of another side, and does not cause the too much pressure loss in fluid stream.Further, the object of the present invention is to provide a kind of heat exchanger assemblies that comprises such homogenization installation.Finally, the object of the present invention is to provide a kind of method, the method equipment allows the fluid stream that leaves heat exchanger on one side of the exit face of heat exchanger, to arrive the quick and reliable homogenizing of Temperature Distribution of another side, and does not cause the too much pressure loss in fluid stream.
These objects by thering is the homogenization installation of following feature, the method that has the heat exchanger assemblies of following feature and have a Temperature Distribution in the homogenizing fluid stream of following feature realizes.
Homogenization installation according to the present invention comprises the main body with flow channel, and flow channel extends through main body.This main body for example can be at least in part formed by the collector of heat exchanger, is particularly arranged on the heat exchanger header in the exit region of heat exchanger.Yet alternatively, this main body also can be formed by the pipe extending in heat exchanger outlet downstream at least in part.Yet, also can expect, this main body comprises the second portion that the first that the collector by heat exchanger forms and the pipe being extended by the downstream at heat exchanger form.
Homogenization installation further comprises the flow control apparatus being arranged in fluid flowing passage.This flow control apparatus is constructed to bring out vortex in the skin of fluid stream that flows through fluid flowing passage, and the flow behavior of the internal layer of fluid stream keeps not being subject to the impact of flow control apparatus substantially simultaneously.Flow control apparatus may not be constructed to not affect completely the flow behavior of fluid stream internal layer.Alternatively, certainly can expect, for example, when the downstream area of fluid circulation via flow control appliance, flow control apparatus affect fluid and flows internal layer.Yet, in homogenization installation according to the present invention, flow control apparatus is constructed to bring out vortex in the skin of fluid stream, and at least for a certain period and/or at least along a certain length of fluid flowing passage, the flow behavior maintenance of fluid stream internal layer is not subject to the impact of flow control apparatus simultaneously.
In homogenization installation according to the present invention, the skin of flow control apparatus inducing fluid stream rotatablely moves with respect to the internal layer of fluid stream.Therefore, flow control apparatus in homogenizing fluid stream, be presented at fluid stream cross section one side to the thermograde of another side (, along the thermograde of direction that is basically perpendicular to the flow direction of fluid stream) Temperature Distribution effective especially the close contact each other because show the skin that flows by fluid in the region of maximum temperature difference in fluid stream with respect to the rotatablely moving of internal layer of fluid stream.The temperature difference existing in the skin flowing with fluid is compared, and the temperature difference in the internal layer of fluid is relatively little.Therefore, at least, for a certain period and/or at least along a certain length of fluid flowing passage, the fact that flow control apparatus does not affect the flow behavior of fluid stream internal layer substantially can not weaken the homo-effect of flow control apparatus substantially.The pressure loss of the fluid stream that alternatively, the structure of flow control apparatus is guaranteed to be caused by homogenization installation is limited.
Therefore, according to homogenization installation according to the present invention, allow to show in fluid stream along the quick and reliable homogenizing of Temperature Distribution of thermograde of direction that is basically perpendicular to the flow direction of fluid stream, and be therefore particularly suitable for the fluid stream that homogenizing is left heat exchanger.Meanwhile, the pressure loss in the fluid stream being caused by homogenization installation is low especially.When homogenization installation according to the present invention is used to homogenizing while leaving the Temperature Distribution of fluid stream of heat exchanger, can improve accuracy and the reliability of measurement of inductance of temperature of fluid stream in the downstream of heat exchanger.Further, when the fluid stream in the downstream of heat exchanger should be divided into two or more shunting bodies streams, homogenization installation guarantees that shunting body stream has essentially identical temperature.
Flow control apparatus is preferably arranged in the region of inwall of fluid flowing passage.For example, flow control apparatus can be attached to the inwall of fluid flowing passage or form with the inwall integral body of fluid flowing passage.Further, flow control apparatus is preferably the static device that does not comprise displaceable element.Static flow control apparatus does not need for driving the existence of the extra power of flow control apparatus.Alternatively, the flow behavior that the fluid that flow control apparatus allows impact to flow through fluid flowing passage flows, for example, with the Temperature Distribution in homogenizing fluid stream, fluid stream itself is taken from the required energy input of flow behavior that wherein affects fluid stream, causes the pressure drop in fluid stream.Yet as discussed above, in homogenization installation according to the present invention, due to the structure of flow control apparatus, the pressure loss in the fluid stream being caused by homogenization installation is limited.
According in the preferred embodiment of homogenization installation of the present invention, flow control apparatus is constructed to make the skin of fluid stream to advance along the spirality fluid flow path of the inwall along fluid flowing passage.By forcing the skin of fluid stream to be advanced along spirality fluid flow path, the effective length that can affect the fluid flow path of the homogenizing of Temperature Distribution in fluid stream is increased.Therefore, the homo-effect of homogenization installation is enhanced, and does not need to increase the required installing space of homogenization installation.
Flow control apparatus can further be constructed to bring out relevant eddy current in the skin of fluid stream and the cushion between internal layer.For example, the structure of flow control apparatus can be after fluid flows the period of bringing out vortex in the impregnable situation of flow behavior of internal layer in the skin of fluid stream or in the skin having flowed by fluid at fluid stream, bring out the length of fluid flowing passage on vortex institute edge in the impregnable situation of flow behavior of fluid stream internal layer after, impel in the skin of fluid stream and the cushion between internal layer and produce the eddy current that is concerned with.
For example, at the skin of fluid stream and the relevant eddy current in the cushion between internal layer, can bring out by flow control apparatus, this flow control apparatus is constructed to cause pressure reduction in fluid stream, and the downstream area at flow control apparatus causes pressure reduction especially.Yet, when flow control apparatus make to flow stream skin along spirality fluid flow path advance and internal layer still when substantially advancing along the fluid flow path of the longitudinal axis of fluid flowing passage, or when the angular speed of the vortex bringing out is greater than the angular speed rotatablely moving (this can be for example the situation in the downstream area of flow control apparatus) of internal layer, also can in the skin of fluid stream and the cushion between internal layer, bring out relevant eddy current in the skin of fluid stream.In this case, in the cushion of the relative motion between internal layer and skin between skin and internal layer, bring out other vortex, and in the skin therefore flowing at fluid and the cushion between internal layer, produce relevant eddy current.The skin of fluid stream and the generation of the relevant eddy current in the cushion between internal layer further improve the homo-effect of homogenization installation.Preferably, the diameter of eddy current reaches half of size of the diameter of fluid flowing passage, causes the best homo-effect of homogenization installation.
Fluid flowing passage can comprise the first with the first flow section and the second portion with second flow section less than the first flow section.For example, the first of fluid flowing passage can be limited by the collector of heat exchanger, and the second portion of fluid flowing passage can be limited by the pipe extending in heat exchanger downstream.
According to the flow control apparatus of homogenization installation of the present invention, can comprise from the inwall of fluid flowing passage and extend at least one the control blade that flows fluid flowing passage.The control blade that flows can be attached to the inwall of fluid flowing passage or form with the inwall integral body of fluid flowing passage.Preferably, the inward flange region of at least one control blade that flows is arranged to the central axis of fluid flowing passage at a distance of preset distance.This design that flow to control blade is guaranteed at least for a certain period and/or at least along a certain length of fluid flowing passage, the internal layer that flows through the fluid stream of fluid flowing passage keeps not being subject to the impact of flow control apparatus substantially, but flow control apparatus brings out vortex in the skin of fluid stream.Flow control apparatus also can comprise a plurality of mobile control blades, for example, along four of the circumferential distribution of fluid flowing passage, flows and controls blades.
At least one of flow control apparatus flows control blade can be with respect to the inwall inclination of fluid flowing passage.Particularly, the angle limiting between the first first type surface of the control blade that flows and the inwall of fluid flowing passage can be less than 90 °, and the angle limiting between the second first type surface of the control blade that flows and the inwall of fluid flowing passage can be greater than 90 °.The longitudinal axis that the mobile first type surface of controlling blade can be basically parallel to fluid flowing passage extends, and the flow direction that is basically parallel to the fluid stream of the fluid flowing passage passing through in the upstream flow of flow control apparatus extends.The flow control apparatus that comprises the mobile control blade of at least one inclination is suitable for being subject in fluid stream bringing out vortex in the layer of flow control apparatus impact, rotatablely move, thereby the skin of fluid stream is advanced along the spirality fluid flow path of the inwall along fluid flowing passage.
Alternatively or in addition, at least one of flow control apparatus flows and controls blade and can be designed to flow and control in the first type surface of blade one and be provided and have concave curvature.Preferably, flow to control blade and be designed so that in its first type surface one is provided and has concave curvature, and another in its first type surface shows convex curvature.Crooked mobile control blade contributes to produce vortex in the layer that is subject to flow control apparatus impact of fluid stream.
In the region of the downstream of flow control apparatus, the skin of fluid stream interacts with internal layer gradually, impels the formation of the eddy current in the cushion between skin and internal layer.Further, because flowing, at least one controls the above-mentioned design of blade, skin and the pressure differential between internal layer of fluid stream produce, special in the downstream of flow control apparatus, and this contributes to the skin of fluid stream and the generation of the relevant eddy current in the cushion between internal layer.
In the situation that fluid flowing passage comprises first and second portion, at least one of flow control apparatus flow to be controlled blade and can be comprised the first in the first that is arranged on fluid flowing passage and be arranged on the second portion in the second portion of fluid flowing passage.Preferably, the mobile control first of blade and the design of second portion are suitable for the first of fluid flowing passage and the flow cross section of second portion.Particularly, flow controlling blade be preferably designed so that the to flow inward flange region of the first that controls blade is arranged to the central axis of fluid flowing passage at a distance of substantially invariable preset distance with the inward flange region of the second portion of controlling blade of flowing.The internal layer that this design of flow controlling blade guarantees to flow through the fluid stream of fluid passage keeps not being subject to the impact of flow control apparatus substantially, although the flow cross section of the second portion of fluid flowing passage is less than the flow cross section of the first of fluid flowing passage.
According to the flow control apparatus of homogenization installation of the present invention, can comprise the first spiral slot providing in the region of the inwall of fluid flowing passage.This groove can wholely with the inwall of fluid flowing passage form or can be limited by the channel member that is attached to the inwall of fluid flowing passage.The spiral slot being formed in the inwall of fluid flowing passage brings out vortex in the skin of fluid stream that flows through fluid flowing passage, rotatablely move, and at least for a certain period and/or at least along a certain length of fluid flowing passage, the internal layer of fluid stream remains unaffected substantially.Further, skin spirality fluid flow path along the inwall along fluid flowing passage when flowing through groove of fluid stream is advanced.In the downstream region of groove, skin interacts with internal layer gradually, impels in the cushion between skin and internal layer and forms eddy current.
The second spiral slot providing in the inner wall area of fluid flowing passage can be further provided flow control apparatus, thereby the winding of the winding of the first spiral slot (winding) and the second spiral slot alternately provides in the region of the inwall of fluid flowing passage.For flow control apparatus provides two grooves, allow further to increase the length for the outer field fluid flow path of fluid stream, and therefore strengthen the homo-effect of flow control apparatus.The upstream extremity of the first spiral slot can be arranged on fluid flowing passage be suitable for have in the first area that the fluid of the first temperature flows through, and the upstream extremity of the second spiral slot can be arranged on fluid flowing passage be suitable for have in the second area that the fluid of the second temperature flows through.This design of groove guarantees that the fluid with the first temperature contacts with the fluid-tight with the second temperature, thus the Temperature Distribution in homogenizing fluid stream.
The flow control apparatus that comprises at least one spiral slot is preferably arranged in the second portion of fluid flowing passage.Especially, spiral slot can be arranged at and in the downstream of heat exchanger, extends and have in the inner wall area of pipe of circular cross section.
According to the flow control apparatus of homogenization installation of the present invention, can comprise that at least one of extending from the inwall of fluid flowing passage flows controls blade or at least one spiral slot the region of the inwall of fluid flowing passage is provided.Yet the flow control apparatus that also can expect homogenization installation is provided with at least one of extending from the inwall of fluid flowing passage and flows and control blade and at least one spiral slot the region of the inwall of fluid flowing passage is provided.For example, at least one of flow control apparatus flow to be controlled blade and can be at least partially disposed in the first of fluid flowing passage, and at least one spiral slot of flow control apparatus can be formed in the inwall of second portion of fluid flowing passage.
Heat exchanger assemblies according to the present invention comprises at least one heat exchanger and homogenization installation as above.Homogenization installation is arranged on the exit of heat exchanger and for homogenizing, leaves the Temperature Distribution of the fluid stream of heat exchanger.Homogenization installation can be incorporated in heat exchanger at least in part.For example, the flow control apparatus of homogenization installation can be at least partially disposed in the collector of heat exchanger.
In the method for the Temperature Distribution in homogenizing fluid stream according to the present invention, fluid stream is conducted through ，Gai fluid passage, fluid passage and extends through main body.Further, by the flow control apparatus being arranged in fluid flowing passage, in the skin of fluid stream that flows through fluid flowing passage, bring out vortex, at least for a certain period and/or at least along a certain length of fluid flowing passage, the flow behavior maintenance of the internal layer of fluid stream is not subject to the impact of flow control apparatus simultaneously.
Preferably, the skin of fluid stream is advanced along the spirality fluid flow path of the inwall along fluid flowing passage.
Preferably, in the skin flowing at fluid and the cushion between internal layer, bring out relevant eddy current.
The method of the Temperature Distribution in homogenization installation as above, heat exchanger assembly and/or homogenizing fluid stream is particularly suitable for using in aircraft, is particularly suitable for homogenizing and leaves the Temperature Distribution in the fluid stream of installation heat exchanger aboard.
Accompanying drawing explanation
Referring now to accompanying schematic figure, the preferred embodiments of the present invention are described in more detail, wherein:
Fig. 1 illustrates the Temperature Distribution in the fluid stream that leaves installation heat exchanger aboard;
Fig. 2 illustrates the 3-D view of the first embodiment of homogenization installation of Temperature Distribution that leaves the fluid stream of heat exchanger for homogenizing;
Fig. 3 illustrates by the flow behavior of bringing out in fluid stream according to the homogenization installation of Fig. 2;
Fig. 4 illustrates first 3-D view of the second embodiment of homogenization installation of Temperature Distribution that leaves the fluid stream of heat exchanger for homogenizing;
Fig. 5 illustrates and for homogenizing, leaves second 3-D view of the second embodiment of homogenization installation of Temperature Distribution of the fluid stream of heat exchanger according to Fig. 4;
Fig. 6 illustrates by the flow behavior of bringing out in fluid stream according to the homogenization installation of Fig. 4 and Fig. 5; And
Fig. 7 illustrates according to the homogenization installation of Fig. 2, Fig. 4 and Fig. 5 leaving the impact of the Temperature Distribution in the fluid stream of heat exchanger.
The specific embodiment
Fig. 1 illustrates the Temperature Distribution in the fluid stream that leaves installation heat exchanger aboard.By Fig. 1, become and be apparent that, fluid stream is presented at one side of exit face of heat exchanger to the thermograde of another side, wherein, when fluid stream leaves the collector with the first flow cross section of heat exchanger and enter in the extension of the downstream of heat exchanger and have the pipe of second flow cross section less than the first flow cross section of heat exchanger header, substantially maintain this thermograde.In fluid stream, cold flow be mainly present in the lower part of heat exchanger header and the lower part of the pipe that extends in heat exchanger downstream in.In contrast, warm current be mainly present in heat exchanger header and the upper part of the pipe that extends in heat exchanger downstream in.The central area of fluid stream shows medium temperature.Therefore, the fluid stream that leaves heat exchanger is presented at one side of its cross section to the thermograde of another side, along the thermograde of direction that is basically perpendicular to the flow direction F of fluid stream.
For homogenizing, leave the Temperature Distribution of the fluid stream of heat exchanger, can adopt the homogenization installation 10 of describing in Fig. 2.Homogenization installation 10 comprises the main body 12 with fluid flowing passage 14, and fluid flowing passage 14 extends through main body 12.Main body 12 comprises the collector 16 of heat exchanger, is particularly arranged in the collector 16 in the exit of heat exchanger.Main body 12 further comprises the pipe 18 that has circular cross section and extend in heat exchanger header 16 downstreams.With similar in Fig. 1, the flow direction that leaves heat exchanger and flow through the fluid stream of fluid flowing passage 14 is also indicated by arrow F in Fig. 2.
The collector 16 of heat exchanger has than the large flow cross section of flow cross section of pipe 18.Therefore the fluid flowing passage 14 that, extends through main body 12 comprises the 14a of first that is limited and had the first flow cross section by collector 16.Further, fluid flowing passage 14 comprises the second portion 14b that is limited and had second flow cross section less than the first flow cross section of the 14a of first of fluid flowing passage 14 by the pipe 18 extending in heat exchanger header 16 downstreams.
Mobile the first upstream portion of controlling blade 24 is arranged in the 14a of first of fluid flowing passage 14, that is, from the inwall of collector 16, extend.Mobile the second downstream part of controlling blade 24 is disposed in the second portion 14b of fluid flowing passage 14, that is, from managing 18 inwall, extend.Yet the control blade 24 that flows flows through fluid flowing passage 14 flow direction F at fluid stream is arranged to the central axis A of fluid flowing passage 14 at a distance of preset distance along the mobile inward flange region 30 of controlling blade 24 whole extensions.
In Fig. 3, describe flow control apparatus 20 flows by the impact of the flow behavior of the fluid stream of fluid flowing passage 14.First, the mobile control blade 24 of flow control apparatus 20 brings out vortex S in the skin 32 of fluid stream that flows through fluid flowing passage 14, that is, the skin 24 of fluid stream rotatablely moves with respect to the internal layer 34 of fluid stream, referring to Fig. 3 a.Due to rotatablely moving of the skin 32 of fluid stream, the region in fluid stream with higher temperature has lower temperature region in flowing with fluid contacts.As a result, as one side of the cross section of the fluid stream of describing in Fig. 1 to the Temperature Distribution of another side by homogenizing significantly.The inward flange region 30 of controlling blade 24 owing to flowing is arranged to the central axis A of fluid flowing passage 14 at a distance of preset distance, so the internal layer 34 of fluid stream keeps not substantially being subject to the impact of flow control apparatus 20 when the upstream portion by flow control apparatus 20.Therefore, the internal layer 34 in the upstream region of flow control apparatus 20 has the flow direction of the central axis A that is basically parallel to fluid flowing passage 14 conventionally.Under any circumstance, the angular speed of the vortex S bringing out in the skin 32 of fluid stream is greater than the angular speed rotatablely moving of internal layer 34, and for example, rotatablely moving of internal layer 34 may produce when fluid stream reaches the downstream area of flow control apparatus 20.As a result, make the minimise loss of pressure in fluid stream that the homogenization by flow control apparatus 20 causes.
Owing to flow controlling shape and the layout of blade 24, the skin 32 that makes to flow through the fluid stream of fluid passage 24 is advanced along the spirality fluid flow path of the inwall 22 along fluid flowing passage 24.Compare with the fluid flow path that the central axis A that is parallel to fluid flowing passage 14 is extended, spirality fluid flow path along the inwall 22 of fluid flowing passage 14 is obviously longer, and does not need homogenization installation 10 to have larger size and therefore do not need larger installing space.Yet the homogenizing of Temperature Distribution can occur along whole length of spirality fluid flow path in fluid stream, thereby can realize the homogenizing very effectively of the Temperature Distribution in fluid stream.
Due to the pressure differential existing in the skin 32 of fluid stream and the relative motion between internal layer 34 and the downstream area due to flow control apparatus 20, in the skin of the fluid stream in the downstream of flow control apparatus 20 and the cushion I between internal layer, bring out relevant eddy current, referring to Fig. 3 b.Therefore, in the downstream of flow control apparatus 20, the internal layer 34 of fluid stream also comprises turbulence characteristic, and it further improves the homo-effect of homogenization installation 10.
Fig. 4 and Fig. 5 illustrate the second embodiment of homogenization installation 10.According to the homogenization installation 10 of Fig. 4 and Fig. 5 from according to the different of the layout of Fig. 2, be: flow control apparatus 10 no longer comprises the mobile control blade 24 extending from the inwall 22 of fluid flowing passage 14, but comprises the first spiral slot 36 and the second spiral slot 38 in the inwall 22 that is formed on fluid flowing passage 14.The upstream extremity of the first groove 36 is arranged in the lower area of fluid flowing passage 14, that is, have in the region that the fluid of lower temperature flows through in fluid flowing passage 14.By contrast, the upstream extremity that is formed on the second groove 38 in the inwall 22 of fluid flowing passage 14 is disposed in the upper area of fluid flowing passage 14, that is, have in the region that the fluid of higher temperature flows through in fluid flowing passage 14.
Similar with the mobile control blade 24 according to the flow control apparatus 20 in the homogenization installation 10 of Fig. 2, first the groove 36 and 38 being formed in the inwall 22 of fluid flowing passage 14 brings out vortex S in the skin 32 of fluid stream that flows through fluid flowing passage 14, and when passing through the upstream portion of flow control apparatus 20, the basic maintenance of internal layer 34 of fluid stream is not subject to the impact of flow control apparatus 20, referring to Fig. 6 a.Because outer 32 with respect to the rotatablely moving of internal layer 34, the fluid with lower temperature contacts with the fluid-tight with higher temperature, the homogenizing of the Temperature Distribution during the fluid that causes flowing through fluid flowing passage 14 flows.Meanwhile, the minimise loss of pressure in the fluid stream that makes to be caused by flow control apparatus 20.
In Fig. 6, describe according to the effect of the homogenization installation 10 of Fig. 2, Fig. 4 and Fig. 5.Particularly, Fig. 6 shows that one side of the cross section flowing at fluid in fluid stream is to the basic homogenizing of Temperature Distribution (along the general flow direction F that is basically perpendicular to fluid stream) quilt of another side.
In the exemplary embodiment of homogenization installation 10 as above, flow control apparatus 20 comprises mobile control blade 24 or the groove 36,38 in the inwall 22 that is formed on fluid flowing passage 14.Yet, can also expect providing mobile control blade 24 and at least one groove 36,38 in the inwall 22 that is provided at fluid flowing passage 14 for flow control apparatus 20.Further, the above-mentioned all features with reference to the only exemplary embodiment of homogenization installation 10 also can be used in another embodiment of homogenization installation 10.
Claims (15)
1. a homogenization installation (10), comprising:
The main body (12) with fluid flowing passage (14), described fluid flowing passage (14) extends through described main body (12); And
Flow control apparatus (20), this flow control apparatus (20) is arranged in described fluid flowing passage (14) and is constructed to and bring out vortex (S) in the skin (32) of fluid stream that flows through described fluid flowing passage (14), and the flow behavior of the internal layer (34) of simultaneously described fluid stream keeps not being subject to the impact of described flow control apparatus (20) substantially.
2. homogenization installation according to claim 1, wherein said flow control apparatus (20) is constructed to make the described skin (32) that flows through the described fluid stream of described fluid flowing passage (14) to advance along the spirality fluid flow path of the inwall along described fluid flowing passage (14) (22).
3. homogenization installation according to claim 1, wherein said flow control apparatus (20) is constructed to bring out relevant eddy current (E) in being arranged on the described skin (32) of described fluid stream and the cushion (B) between described internal layer (34).
4. homogenization installation according to claim 1, wherein said fluid flowing passage (14) comprises the second portion (14b) that has the first (14a) of the first flow cross section and have second flow cross section less than described the first flow cross section.
5. homogenization installation according to claim 1, wherein said flow control apparatus (20) comprises that at least one that extend to described fluid flowing passage (14) from the described inwall (22) of described fluid flowing passage (14) flow to control blade (24), and wherein said at least one inward flange region (30) of controlling blade (24) of flowing is preferably arranged to the central axis (A) of described fluid flowing passage (14) at a distance of preset distance.
6. homogenization installation according to claim 5, wherein said at least one control blade (24) described inwall (22) inclination with respect to described fluid flowing passage (14) of flowing, thereby the angle (α) limiting between first first type surface (26) of described mobile control blade (24) is less than 90 °, and the angle (β) limiting between second first type surface (28) of described mobile control blade (24) is greater than 90 °, and/or described at least one control blade (24) that flows is designed so that described first type surface (26, 28) one in is provided and has concave curvature.
7. homogenization installation according to claim 5, wherein said at least one flow and control blade (24) and comprise the first in the described first (14a) that is arranged on described fluid flowing passage (14) and be arranged on the second portion in the described second portion (14b) of described fluid flowing passage (14).
8. homogenization installation according to claim 1, wherein said flow control apparatus (20) comprises the first spiral slot (36) in the region of the described inwall (22) that is formed on described fluid flowing passage (14).
9. homogenization installation according to claim 8, wherein said flow control apparatus (20) comprises the second spiral slot (38) in the region of the described inwall (22) that is formed on described fluid flowing passage (14), thereby the winding of the winding of described the first spiral slot (36) and described the second spiral slot (38) is alternately formed in the region of described inwall (22) of described fluid flowing passage (14), what the upstream extremity of wherein said the first spiral slot (36) was arranged on described fluid flowing passage (14) is suitable for having in the first area that the fluid of the first temperature flows through, and what the upstream extremity of described the second spiral slot (36) was arranged on described fluid flowing passage (14) is suitable for having in the second area that the fluid of the second temperature flows through, to guarantee that the described fluid with the first temperature contacts with the described fluid-tight with the second temperature.
10. homogenization installation according to claim 8, wherein said flow control apparatus (20) is arranged in the described second portion (14b) of described fluid flowing passage (14).
11. 1 kinds of heat exchanger assemblies, comprising:
Heat exchanger; With
Homogenization installation according to claim 1 (10), described homogenization installation (10) is arranged on the exit of described heat exchanger.
The method of the Temperature Distribution in 12. 1 kinds of homogenizing fluid streams, said method comprising the steps of:
Fluid stream is guided through to fluid passage (14), and this fluid passage (14) extend through main body (12); With
By the flow control apparatus (20) being arranged in described fluid flowing passage (14), in the skin (32) of described fluid stream that flows through described fluid flowing passage (14), bring out vortex (S), the flow behavior of the internal layer (34) of simultaneously described fluid stream keeps not being subject to the impact of described flow control apparatus (20) substantially.
13. methods according to claim 12, wherein said flow control apparatus (20) makes to flow through the described skin (32) of the described fluid stream of described fluid flowing passage (14) and advances along the spirality fluid flow path of the inwall along described fluid flowing passage (14) (22).
14. methods according to claim 12, bring out relevant eddy current (E) in the described skin (32) wherein flowing at described fluid and the cushion (I) between described internal layer (34).
15. use homogenization installation according to claim 1 (10), heat exchanger assembly according to claim 10 and/or method according to claim 12 in aircraft.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261672782P | 2012-07-18 | 2012-07-18 | |
| US61/672,782 | 2012-07-18 | ||
| EP12176836.0A EP2687808A1 (en) | 2012-07-18 | 2012-07-18 | Homogenisation device, heat exchanger assembly and method of homogenising a temperature distribution in a fluid stream |
| EP12176836.0 | 2012-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103575158A true CN103575158A (en) | 2014-02-12 |
| CN103575158B CN103575158B (en) | 2016-05-11 |
Family
ID=46634024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310302880.3A Expired - Fee Related CN103575158B (en) | 2012-07-18 | 2013-07-18 | The method of Temperature Distribution in homogenization installation, heat exchanger assemblies and homogenizing fluid stream |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20140020864A1 (en) |
| EP (1) | EP2687808A1 (en) |
| CN (1) | CN103575158B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857127A (en) * | 2021-01-18 | 2021-05-28 | 中国神华煤制油化工有限公司 | Self-cleaning end cover and heat exchange equipment |
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| DE212016000060U1 (en) * | 2015-03-06 | 2017-10-15 | Ariston Thermo S.P.A. | Air conveyor for heat pumps |
| EP3219955B1 (en) * | 2016-03-15 | 2020-11-18 | Airbus Operations S.L. | Heat exchanger outlet deflector |
| DE102016109247B4 (en) * | 2016-05-19 | 2020-03-26 | Benteler Automobiltechnik Gmbh | Exhaust gas heat exchanger |
| EP3309494B1 (en) * | 2016-10-13 | 2021-04-28 | HS Marston Aerospace Limited | Heat exchanger |
| EP3348947B1 (en) * | 2017-01-13 | 2020-11-04 | HS Marston Aerospace Limited | Heat exchanger |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20140020864A1 (en) | 2014-01-23 |
| CN103575158B (en) | 2016-05-11 |
| EP2687808A1 (en) | 2014-01-22 |
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