CN112460489B - Self-adaptive flow distribution adjusting device - Google Patents
Self-adaptive flow distribution adjusting device Download PDFInfo
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- CN112460489B CN112460489B CN202011210975.9A CN202011210975A CN112460489B CN 112460489 B CN112460489 B CN 112460489B CN 202011210975 A CN202011210975 A CN 202011210975A CN 112460489 B CN112460489 B CN 112460489B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Abstract
The application relates to a self-adaptation flow distribution adjusting device, belongs to flow control technical field for flow that each subregion in self-adaptation distribution and regulation entering fluid passage includes: the flow regulating assembly comprises a plurality of airfoils, the airfoils are positioned in the fluid channel, and the airfoils are self-adaptively rotated under the action of the fluid in the fluid channel so as to change the flow area of each partition of the fluid channel and achieve the purpose of distributing the flow. The flow rate of each subarea entering the fluid channel can be adaptively adjusted according to the flow velocity of the fluid. When the action moment of the fluid on the airfoil is increased, the rotating angle of the corresponding airfoil is larger, the rotation of the airfoil changes the effective flow area of each subarea of the fluid channel, so that the flow rate of the fluid entering each subarea is changed, and the aim of distributing and adjusting the flow rate of the fluid in each subarea in the fluid channel is fulfilled. The device has the advantages of simple structure, small flow loss, self-adaptive adjustment and no influence of gravity on the adjusting function.
Description
Technical Field
The application relates to the technical field of flow control, in particular to a self-adaptive flow distribution adjusting device.
Background
Various heat exchange devices are widely used in the fields of thermal power generation, petrochemical industry, ocean platforms, ship power and the like. The heat source medium comprises steam, high-temperature flue gas, high-temperature fresh water, lubricating oil and the like. The cold source is usually made from local materials according to the application environment, and the commonly used cold source media are air, river water, seawater and the like. Taking a marine vessel power system as an example, three typical heat exchange devices include a condenser, a lubricating oil cooler and a fresh water cooler, wherein heat source media of the three heat exchange devices are respectively steam, lubricating oil and fresh water, the temperatures of the heat source media are different, and cold sources of the three heat exchange devices can all adopt seawater.
In the related art, the heat exchanger device often needs to distribute and adjust the flow of the fluid medium, and the traditional means is generally realized by adjusting the opening degree of a valve. However, the following disadvantages exist in the valve regulation: the valve adjustment is adopted, and an adjusting valve needs to be independently arranged for each user and each flow channel needing to be controlled, so that the system structure is complex; the valve generates larger throttling loss while regulating the flow, thereby increasing the configuration burden of a system pump source; extra vibration noise is generated by throttling of the valve, and adverse effects are generated on the safety and reliability of the system and the surrounding environment; the opening of the valve is adjusted by rotating a hand wheel, so that time and labor are wasted, and the adjustment precision is poor; the adoption of automatic regulation requires that each valve is provided with an electric driving mechanism and a hydraulic driving mechanism, and a set of sensor and a control system are arranged, so that the complexity of the system is increased, and the quantity and the weight of equipment are increased.
Disclosure of Invention
The embodiment of the application provides a self-adaptive flow distribution adjusting device, which aims to solve the problems that in the related art, a valve is adopted to distribute and adjust the flow of a fluid medium, and an electric or hydraulic driving mechanism is required to be arranged, so that the system composition and the control strategy are complex, the safety and the reliability are reduced, and the flow loss and the vibration noise are increased.
The embodiment of the present application provides a self-adaptive flow distribution regulating device, which is used for self-adaptively distributing and regulating the flow entering each partition in a fluid channel, and comprises:
the flow regulating assembly comprises a plurality of wing surfaces, the wing surfaces are positioned in the fluid channel and divide the fluid channel into a plurality of flow areas, and the wing surfaces rotate adaptively under the action of fluid in the fluid channel so as to change the flow area of each subarea of the fluid channel and achieve the purpose of flow distribution.
In some embodiments: the fluid channel is of a circular cylinder structure, the airfoils are surrounded into a circular ring structure in the fluid channel, rotating shafts are arranged on wing sections at two ends of each airfoil, two adjacent airfoils are rotatably connected through the rotating shafts, the rotating shafts at two ends of each airfoil are arranged on the same ring, and the airfoils are uniformly distributed along the circumference of the axis of the fluid channel.
In some embodiments: the rotating shaft is provided with a supporting rod for suspending the airfoil in the fluid channel, one end of the supporting rod is fixedly connected with the rotating shaft, and the other end of the supporting rod is fixedly connected with the inner wall of the fluid channel.
In some embodiments: two adjacent be equipped with two torsional springs between the airfoil, two torsional springs wear the cover to be in on the rotation axis, and two ends of two torsional springs are connected with two adjacent airfoils respectively, the U-shaped connecting portion and the bracing piece butt of two torsional springs.
In some embodiments: the rotation axis is perpendicular to the airfoil section at both ends of the airfoil and passes through the center of gravity of the airfoil.
In some embodiments: the fluid channel is divided into an outer flow channel and an inner flow channel by the plurality of airfoils in the fluid channel, and the fluid channel is provided with a limiting ring for limiting the plurality of airfoils to rotate towards the inner flow channel and/or the outer flow channel.
In some embodiments: the limiting ring comprises an outer limiting ring and an inner limiting ring, the outer limiting ring is located in the outer flow channel, the inner limiting ring is located in the inner flow channel, the outer limiting ring and the inner limiting ring are provided with a plurality of positioning rods connected with the inner wall of the fluid channel, and the positioning rods are radially arranged along the circumferential direction of the outer limiting ring and the inner limiting ring.
In some embodiments: the suction surface of the airfoil is proximate to the inner wall of the fluid passageway and the pressure surface of the airfoil is distal from the inner wall of the fluid passageway; or the like, or, alternatively,
the suction surface of the airfoil is far away from the inner wall of the fluid channel, the pressure surface of the airfoil is close to the inner wall of the fluid channel, and the camber of the arc of the suction surface is larger than that of the pressure surface.
In some embodiments: the leading edge of the airfoil is located at the inlet side of the flow passage and the trailing edge of the airfoil is located at the outlet side of the flow passage.
In some embodiments: and a rotating gap is reserved between two adjacent airfoils in the plurality of airfoils.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a self-adaptive flow distribution and regulation device which is used for self-adaptively distributing and regulating the flow entering each subarea of a fluid channel.
Therefore, the adaptive flow distribution adjusting device can adaptively adjust the flow area of each subarea of the fluid channel according to the flow velocity of the fluid, and achieves the purpose of flow distribution. When the action moment of the fluid on the airfoil is increased, the rotating angle of the corresponding airfoil is larger, the rotation of the airfoil changes the effective flow area of each subarea in the fluid passage, so that the flow rate of the fluid entering each subarea is changed, and the aim of distributing and adjusting the flow rate of the fluid in each subarea in the fluid passage is fulfilled. The self-adaptive flow distribution adjusting device has the advantages of simple structure, small flow loss, self-adaptive adjustment and no influence of gravity on the adjusting function.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a perspective view of the structure of an embodiment of the present application;
FIG. 4 is an airfoil force analysis plot of an embodiment of the present application;
FIG. 5 is a force analysis plot of the center of rotation of an airfoil of an embodiment of the present application upstream of the center of pressure;
FIG. 6 is a force analysis plot of the center of rotation of an airfoil of an embodiment of the present application downstream from the center of pressure;
fig. 7 is a schematic view of a flow distribution of a flow regulation assembly according to an embodiment of the present application.
Reference numerals are as follows:
1. a fluid channel; 11. an outer flow passage; 12. an inner flow passage;
2. a flow regulating assembly; 21. an airfoil; 22. an inner limiting ring; 23. a rotating shaft; 24. a support bar; 25. positioning a rod; 26. an outer limit ring; 27. a double torsion spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a self-adaptive flow distribution and adjustment device, which can solve the problems that in the related art, a valve is adopted to distribute and adjust the flow of a fluid medium, and an electric or hydraulic driving mechanism is required to be equipped, so that the system composition and the control strategy are complex, the safety and the reliability are reduced, and the flow loss and the vibration noise are increased.
Referring to fig. 1 to 3, an embodiment of the present application provides an adaptive flow distribution regulating device for adaptively distributing and regulating flow into each partition in a fluid channel 1, including:
the flow regulating assembly 2, the flow regulating assembly 2 includes several wings 21, the specific number of wings 21 is set reasonably according to the wing profile of wings 21 and the inner diameter of the fluid passage 1. The plurality of airfoils 21 are located in the fluid passage 1, the plurality of airfoils 21 divide the fluid passage 1 into the outer flow passage 11 and the inner flow passage 12 in the fluid passage 1, and the plurality of airfoils 21 are adaptively rotated by the force of the fluid in the fluid passage 1 to change the effective flow areas of the inner and outer flow passages 11 and the inner flow passage 12 in the fluid passage 1.
The fluid channel 1 of the present embodiment is preferably, but not limited to, a circular cylinder structure, which provides a flow channel for fluid, the fluid medium of the present embodiment may be a gas medium or a liquid medium, and the plurality of airfoils 21 are located inside the fluid channel 1 to form a circular ring structure. The fluid passage 1 may also be a rectangular cylinder structure or a cylinder structure with a cross section of any other shape, and the plurality of airfoils 21 are arranged in a straight-line structure or any other desired shape structure in the fluid passage 1 according to the needs of a user downstream of the fluid passage 1.
The self-adaptive flow distribution and regulation device can self-adaptively regulate the effective flow areas of the inner runner 11, the outer runner 11 and the inner runner 12 of the fluid channel 1 according to the flow velocity of fluid in the fluid channel 1, thereby achieving the purpose of distributing and regulating the flow of fluid in each partition of the fluid channel 1.
When the flow velocity of the fluid in the fluid passage 1 increases, the action moment of the fluid in the fluid passage 1 on the airfoil 21 increases, and the larger the rotation angle of the corresponding airfoil 21 is, the rotation of the airfoil 21 will change the effective flow areas of the inner and outer flow passages 11 and the inner flow passage 12 in the fluid passage 1, so that the fluid flows of the inner and outer flow passages 11 and the inner flow passage 12 in the fluid passage 1 change, and the fluid flows of the inner and outer flow passages 11 and the inner flow passage 12 in the fluid passage 1 are adjusted to be within a required flow range.
When the flow velocity of the fluid in the fluid passage 1 is kept constant, the airfoil 21 is in a stress and moment balance state, and the rotation angle of the airfoil 21 is kept constant, so that the fluid flow of each partition in the fluid passage 1 is kept within a set flow range.
When the flow velocity of the fluid in the fluid passage 1 is reduced, the moment of action of the fluid in the fluid passage 1 on the airfoil 21 is reduced, the corresponding rotation angle of the airfoil 21 is reduced, and the rotation of the airfoil 21 changes the effective flow areas of the inner and outer flow passages 11 and 12 in the fluid passage 1, so that the flow of the fluid passing through the outer flow passage 11 and the inner flow passage 12 is changed, and the flow of the fluid passing through the outer flow passage 11 and the inner flow passage 12 is adjusted to be within a required flow range.
In some alternative embodiments: referring to fig. 1 to 3, in the present embodiment, an adaptive flow distribution regulating device is provided, where airfoil sections at two ends of a plurality of airfoils 21 of the adaptive flow distribution regulating device are both provided with a rotating shaft 23, two adjacent airfoils 21 are rotatably connected by the rotating shaft 23, the rotating shafts 23 at two ends of the plurality of airfoils 21 are on the same ring, and the plurality of airfoils 21 are uniformly arranged along the circumference of an axis of a fluid passage 1. The rotating shaft 23 provides a rotating support for the airfoil 21, and the airfoil 21 performs a pitching rotation movement with the rotating shaft 23 as an axis.
A support rod 24 for suspending the wing surface 21 in the fluid channel 1 is arranged on the rotating shaft 23, one end of the support rod 24 is fixedly connected with the rotating shaft 23, and the other end of the support rod 24 is fixedly connected with the inner wall of the fluid channel 1. The support rod 24 provides positioning and support for the rotating shaft 23 and the airfoil 21, ensures the position accuracy of the rotating shaft 23 and the airfoil 21, and improves the control accuracy of the fluid flow.
The rotating shaft 23 is perpendicular to the airfoil section at both ends of the airfoil 21, and the center line of the rotating shaft 23 is overlapped with the axis of the airfoil 21 and passes through the gravity center of the airfoil 21, so that the gravity moment of the airfoil 21 is always zero, and the airfoils 21 can synchronously rotate around the rotating shaft 23 under the action of fluid. If necessary, the center of gravity of the airfoil 21 can be adjusted by means of counterweights or sections made of different materials.
Be equipped with two torsional springs 27 between two adjacent airfoils 21, this two torsional springs 27 wears to overlap on rotation axis 23, and two torsional springs 27's both ends are connected with two adjacent airfoils 21 respectively, two torsional springs 27's U-shaped connecting portion and bracing piece 24 butt. The double torsion spring 27 is used to balance the fluid acting torque to stabilize the flow regulating assembly 2 at a rotational angle state corresponding to a given operating condition. The wing surface 21 and the support rod 24 are restrained by a double torsion spring 27, and the double torsion spring 27 can be pre-twisted at a certain angle when the wing surface 21 is not subjected to the action of fluid, so that the wing surface 21 is kept in an initial limiting state. During operation, the fluid action moment applied to the airfoil 21 is opposite to the direction of the moment of the double torsion spring 27, and the two are balanced to reach a stable state.
In some alternative embodiments: referring to fig. 1 and 2, the present embodiment provides an adaptive flow distribution regulating device, in which a plurality of airfoils 21 divide a fluid passage 1 into an outer flow passage 11 and an inner flow passage 12 in the fluid passage 1, a plurality of airfoils 21 are between the outer flow passage 11 and the inner flow passage 12, and the plurality of airfoils 21 change inner and outer diameters of the outer flow passage 11 and the inner flow passage 12 by rotation.
The fluid channel 1 is provided with a limiting ring for limiting the rotation of the plurality of airfoils 21 towards the direction of the inner flow channel 12 or the outer flow channel 11, and the limiting ring is used for limiting the limiting rotation angle of the flow regulating assembly 2. The limiting ring controls the angle of the plurality of airfoils 21 of the flow adjusting assembly 2 rotating towards the inner runner 12 or the outer runner 11, and when the plurality of airfoils 21 rotate towards the inner runner 12 or the outer runner 11 to a set angle, the limiting ring abuts against the limiting ring, so that the inner runner 12 or the outer runner 11 is ensured to have the largest or the smallest flow area.
The limiting ring comprises an outer limiting ring 26 and an inner limiting ring 22, wherein the outer limiting ring 26 is positioned in the outer runner 11, and the inner limiting ring 22 is positioned in the inner runner 12. The outer limiting ring 26 is used for controlling the angle of the plurality of airfoils 21 rotating towards the outer flow channel 11, and when the plurality of airfoils 21 rotate to a set angle, the trailing edges of the plurality of airfoils 21 abut against the outer limiting ring 26, so as to ensure that the inner flow channel 12 has a minimum inlet flow area. The inner limiting ring 22 is used for controlling the rotation angle of the plurality of airfoils 21 towards the inner runner 12, and after the plurality of airfoils 21 rotate to a set angle, the trailing edges of the plurality of airfoils 21 abut against the inner limiting ring 22, so as to ensure that the outer runner 11 has a minimum inlet flow area.
A plurality of positioning rods 25 connected with the inner wall of the fluid channel 1 are arranged at the peripheries of the inner limiting ring 22 and the outer limiting ring 26, and the plurality of positioning rods 25 are radially arranged along the circumferential direction of the inner limiting ring 22 and the outer limiting ring 26. The positioning rods 25 provide positioning and supporting for the inner limiting ring 22 and the outer limiting ring 26, so that the position accuracy of the inner limiting ring 22 and the outer limiting ring 26 is ensured, and the control accuracy of the fluid flow is improved.
In some alternative embodiments: referring to fig. 3, the present embodiment provides an adaptive flow distribution regulating device, the airfoil 21 of the adaptive flow distribution regulating device is preferably, but not limited to, a double-convex airfoil, the suction surface of the airfoil 21 is close to the inner wall of the fluid passage 1, and the pressure surface of the airfoil 21 is far away from the inner wall of the fluid passage 1. It is of course also possible to place the suction surface of the airfoil 21 away from the inner wall of the fluid channel 1 and the pressure surface of the airfoil 21 close to the inner wall of the fluid channel 1.
The camber of the arc of the suction surface is greater than the camber of the arc of the pressure surface. The leading edge of the airfoil 21 is directed towards the inlet side of the flow channel 1 and the trailing edge of the airfoil 21 is directed towards the outlet side of the flow channel 1.
Referring to fig. 5 and 6, the present embodiment is described by taking as an example that the suction surface of the airfoil 21 is close to the inner wall of the fluid passage 1, and the pressure surface of the airfoil 21 is far from the inner wall of the fluid passage 1:
when the axis of rotation 23 of airfoil 21 is upstream of the center of pressure, the fluid action torque may cause airfoil 21 to rotate clockwise. The leading edge of the airfoil 21 is turned around the axis of rotation 23 in a direction closer to the inner wall of the flow channel 1 to reduce the inlet flow area of the outer flow channel 11.
When the axis of rotation 23 of airfoil 21 is downstream of the center of pressure, the fluid action torque may cause the airfoil 21 to rotate counterclockwise. The leading edge of the airfoil 21 is turned away from the inner wall of the flow channel 1 about the axis of rotation 23 to reduce the inlet flow area of the inner flow channel 12.
A rotating gap is reserved between two adjacent airfoils 21 in the airfoils 21, and the rotating gap provides a moving space for the airfoils 21 to prevent the two adjacent airfoils 21 from interfering with each other.
Principle of operation
Referring to FIG. 4, an airfoil 21 disposed in a fluid passageway 1 is subjected to a fluid velocity V ∞ The resultant force of the fluid action received by the airfoil 21 is R, which can be generally decomposed into a lift force L and a drag force D, and can also be decomposed into a force F along the chord direction for analysis C And a force F directed perpendicular to the string N 。
When the axis of rotation 23 of the airfoil 21 is not at its center of pressure (the axis of rotation and the center of pressure are not coincident), the force of the fluid acting on the airfoil 21 has a moment arm of a length that forces F in the chordwise direction of the airfoil 21 C And a force F perpendicular to the string direction N Will be subjected to a certain pitching moment under the action ofM Z ＝L Z X R, size | M Z |＝|F C |·L C +|F N |·L N Wherein L is Z Is a distance vector from the center of rotation to the center of pressure, L C And L N The lengths of the arms of the acting force along the string and the acting force perpendicular to the string are respectively.
The fluid acting torque can make the airfoil 21 rotate clockwise or counterclockwise according to the relative positions of the fluid resultant force acting point (pressure center) on the airfoil 21 and the rotating shaft 23 (namely, the rotating center of the airfoil is positioned at the upstream of the pressure center, and the rotating center of the airfoil is positioned at the downstream of the pressure center); correspondingly, there are two initial states of the airfoil 21, as shown in fig. 6 and 5.
Referring to fig. 5 to 7, when the incoming flow velocity V is ∞ When increased, the fluid forces and moments experienced by airfoil 21 are both increased, and when airfoil 21 experiences fluid forces moment M Z Greater than double torsional spring moment M K The airfoil 21 will be caused to rotate. At the same time, rotation of the airfoil 21 will result in an increase in the double torsion spring torque. When the fluid action moment is balanced with the moment of the double torsional springs, the device reaches a stable state under the flow speed.
At this time, the airfoil angle of attack is alpha, and the diameter of the inner flow passage 12 at the airfoil leading edge section is phi inner The outer diameter of the outer flow passage 11 is phi outer Inner diameter of phi inner . For a given total inlet flow Q, the fluid velocity profile u (r) can be obtained here according to the principles of fluid mechanics, so that the inner and outer flow channel flows can be calculated separately:
the corresponding relation (Q-Q) between the total flow, the flow distribution proportion and the wing surface attack angle can be obtained Inner part /Q Outer cover - α). By reasonably designing the structure and the installation position of the device, the flow distribution characteristic of the device is fullThe flow distribution requirement is satisfied, and the purpose of self-adaptive distribution and flow regulation can be achieved.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An adaptive flow distribution regulating device for adaptively distributing and regulating flow into zones in a fluid passageway (1), comprising:
the flow regulating assembly (2) comprises a plurality of airfoils (21), the airfoils (21) are positioned in the fluid channel (1) to divide the fluid channel (1) into a plurality of flow areas, and the airfoils (21) are adaptively rotated under the action of fluid in the fluid channel (1) so as to change the flow area of each subarea of the fluid channel (1);
fluid passage (1) is circular barrel structure, and is a plurality of airfoil (21) are in enclose into the ring annular structure in fluid passage (1), and is a plurality of the wing section at airfoil (21) both ends all is equipped with rotation axis (23), rotates through rotation axis (23) between two adjacent airfoils (21) and connects, and is a plurality of rotation axis (23) at airfoil (21) both ends are on same ring, and a plurality of airfoil (21) are followed the axis circumference equipartition of fluid passage (1) is arranged, rotation axis (23) do airfoil (21) provide the rotation support, airfoil (21) use rotation axis (23) are axle center every single move rotary motion.
2. An adaptive flow distribution regulating device according to claim 1, characterized in that:
the rotary shaft (23) is provided with a support rod (24) which suspends the airfoil (21) in the fluid channel (1), one end of the support rod (24) is fixedly connected with the rotary shaft (23), and the other end of the support rod (24) is fixedly connected with the inner wall of the fluid channel (1).
3. An adaptive flow distribution regulating device according to claim 2, characterized in that:
adjacent two be equipped with two torsional springs (27) between airfoil (21), two torsional springs (27) wear the cover on rotation axis (23), and the both ends of two torsional springs (27) are connected with two adjacent airfoil (21) respectively, the U-shaped connecting portion and bracing piece (24) butt of two torsional springs (27).
4. An adaptive flow distribution regulating device according to claim 1, characterized in that:
the rotating shaft (23) is perpendicular to the airfoil section at two ends of the airfoil (21) and passes through the gravity center of the airfoil (21).
5. An adaptive flow distribution regulating device according to claim 1, wherein:
the plurality of airfoils (21) divide the fluid passage (1) into an outer runner (11) and an inner runner (12) in the fluid passage (1), and the fluid passage (1) is provided with a limiting ring for limiting the plurality of airfoils (21) to rotate towards the inner runner (12) and/or the outer runner (11).
6. An adaptive flow distribution regulating device according to claim 5, wherein:
the spacing ring includes outer spacing ring (26) and interior spacing ring (22), outer spacing ring (26) are located in outer runner (11), interior spacing ring (22) are located in interior runner (12), outer spacing ring (26) and interior spacing ring (22) be equipped with fluid channel (1) inner wall connection's a plurality of locating levers (25), and is a plurality of locating lever (25) are followed the circumferencial direction of outer spacing ring (26) and interior spacing ring (22) is the radiation and arranges.
7. An adaptive flow distribution regulating device according to claim 1, characterized in that:
the suction surface of the airfoil (21) is close to the inner wall of the fluid passage (1), and the pressure surface of the airfoil is far away from the inner wall of the fluid passage (1); or the like, or, alternatively,
the suction surface of airfoil is kept away from the inner wall of fluid passage (1), the pressure surface of airfoil is close to the inner wall of fluid passage (1), the camber line camber of suction surface is greater than the camber line of pressure surface.
8. An adaptive flow distribution regulating device according to claim 1, characterized in that:
the leading edge of the airfoil (21) is located at the inlet side of the flow channel (1) and the trailing edge of the airfoil (21) is located at the outlet side of the flow channel (1).
9. An adaptive flow distribution regulating device according to claim 1, characterized in that:
a rotating gap is reserved between two adjacent airfoils (21) in the airfoils (21).
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| CN202011210975.9A CN112460489B (en) | 2020-11-03 | 2020-11-03 | Self-adaptive flow distribution adjusting device |
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| CN202011210975.9A CN112460489B (en) | 2020-11-03 | 2020-11-03 | Self-adaptive flow distribution adjusting device |
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| CN112460489B true CN112460489B (en) | 2022-08-30 |
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| CN106523753B (en) * | 2016-12-22 | 2019-02-22 | 盐城工学院 | A kind of vertical pressure stable throttle valve and fluid transport pipeline |
| CN108166952A (en) * | 2018-02-23 | 2018-06-15 | 北京合力奇点科技有限公司 | The adaptive tune flow control water extracting device of oil that can actively adjust |
| CN207816368U (en) * | 2018-02-23 | 2018-09-04 | 南京亿准纳自动化控制技术有限公司 | Orifice union, rectification and flow measurement device |
| CN208750096U (en) * | 2018-09-07 | 2019-04-16 | 重庆江源工程勘察设计有限公司 | Double-door type gate valve |
| CN111780611B (en) * | 2020-07-30 | 2022-03-15 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Subregion flow self-adjusting heat exchanger |
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2020
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