CN202210747U - Generating set based on coupling effect of mean flow and alternating flow - Google Patents
Generating set based on coupling effect of mean flow and alternating flow Download PDFInfo
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- CN202210747U CN202210747U CN2011203567913U CN201120356791U CN202210747U CN 202210747 U CN202210747 U CN 202210747U CN 2011203567913 U CN2011203567913 U CN 2011203567913U CN 201120356791 U CN201120356791 U CN 201120356791U CN 202210747 U CN202210747 U CN 202210747U
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- driving tube
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- resonatron
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- electric generator
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Abstract
The utility model discloses a generating set based on the coupling effect of a mean flow and an alternating flow. The generating set includes a driving tube upstream section, a driving tube downstream section, a resonating tube, connecting devices, and linear generators. The two sides of the middle part of the resonating tube communicate with the driving tube upstream section and the driving tube downstream section. The two ends of the resonating tube are provided with the connecting devices and are connected with the linear generators, or the two ends of the resonating tube are closed, the sides of the resonating tube are connected with the connecting tubes and are connected with the linear generators. The mean flow is a unidirectional flow possessing obvious kinetic energy. The mean flow enters into a driving tube and induces the resonating tube to generate an inside sound field so as to drive the linear generators to generate electricity. The mean flow generating set is simply in structure, long in service lifetime, and is free of maintenance, and provides an efficient and reliable method for the utilization of pipeline fluid energy and wind energy which exist widely.
Description
Technical field
The utility model relates to TRT and method, relate in particular to a kind of based on the time current-sharing and alternating flow coupling TRT.
Background technology
Shi Junliu also claims average flow (Mean flow), is meant the one-way fluid flow with remarkable kinetic energy, comprises air-flow, current etc. in natural wind, the pipeline.Just current-sharing sometimes swashs the example of sound in daily life: when blowing facing to the bottleneck level of vertically placing, can hear the buzz that spreads out of in the bottle, the air-flow that blows out in this explanation mouthful (time current-sharing) has caused sound oscillation (self-oscillation) in bottle.See from the aeroacoustics angle; This phenomenon can be summarized as the time current-sharing with certain kinetic energy and induces the air sound field that clocklike has the alternating flow characteristic, and it has complicated energy transfer process behind, at first; When air-flow skimmed over, unstable viscous boundary layer broke away from bottleneck; Secondly, the formation vortex structure is rolled with the form of whirlpool again at bottleneck in the boundary layer of disengaging, and the sound field in bottle is transmitted energy; Once more, the existence of the transmission of energy and sound field has influenced the formation of whirlpool subsequently again conversely.Whole process forms an energy back loop, has the resonance characteristic of height.If change the air-flow that blows out in the mouth into high-velocity duct air-flow or natural wind; Bottle changes the special airtight cavity of single-ended opening into; High velocity air can transmit big many energy in cavity; Thereby induce a standing-wave sound field with big acoustic density, instant current-sharing induces stable sound field under special plumbing installation, and current-sharing swashed acoustic effect when this effect was called.
The Naudascher of Germany Karlsru university and the Rockwell of U.S. Lehigh university according to form mechanism the time current-sharing swash and be divided into three major types: 1) fluid-power oscillation mode; Characteristic is that vibration comes from the inherent instability that fluid flows, and pure fluid-power vibration only betides cavity depth and compares very little situation with oscillation wavelength; 2) fluid-resonance oscillations type, characteristic are that fluid oscillating receives resonant wave (standing-wave sound field) effects remarkable, and frequency is higher, and the degree of depth of cavity and wavelength are in same magnitude; 3) fluid-elastic oscillation type, characteristic are that the motion of fluid oscillating and solid boundaries is coupled, and this type of vibration betides the big displacement of one or more walls experience when cavity, and enough to the time current-sharing the shearing boundary layer perturbation apply reaction.Since last century the seventies; Research to fluid-resonance oscillations increases gradually; The object of this type research can be abstracted into a main flow pipeline and the airtight branch road of single-ended opening that sectional dimension is suitable; Fluid in the two is interconnected, equal flow field when in the main flow pipeline being, and what set up in the airtight branch road is standing-wave sound field.Typical decussate texture sketch map is as shown in Figure 1, and the branch road cavity in such vibration is that (λ=4L), the pressure amplitude of curve representation standing-wave sound field distributes 1/4 wave resonator.
The purpose of most of early-stage Study is structural vibration, fatigue rupture and the noise that the self-excitation hard oscillation causes in the eliminate fluid conveyance conduit.In fact; Shi Junliu swashs acoustic effect and also derives a kind of effective energy utilization mode; Existing experimental study shows that current-sharing induces the standing-wave sound field with high-energy-density and stabilized frequency characteristic during natural wind etc. in airtight cavity, and its pressure amplitude can reach 15%.Therefore, through the time current-sharing swash acoustic effect can with the time current-sharing Conversion of energy be acoustic energy, and be used to drive the linear electric generator generating.
Linear electric generator is to utilize electromagnetic induction principle to convert mover reciprocating motion mechanical energy the device of electric energy to, can be directly by the time current-sharing swash the pressure oscillation that acoustic effect produces and drive.
For linear electric generator, the consumption sound merit amount of generator can be expressed as:
In the formula (1);
and
representes pressure complex amplitude and volume flow respectively, and * representes complex conjugate.
The electric work of linear electric generator output simultaneously can be expressed as:
（2）
The middle Z of formula (2) representes the external circuit impedance, the complex amplitude of
expression current wave momentum.In recent years, through the improvement of key technologies such as some sealings, linear electric generator has had very high acoustic-electric conversion efficiency, generally can reach about 90%.
This patent with the time current-sharing swash acoustic effect and linear electric generator is coupled, thereby constitute an independently TRT.
Summary of the invention
The purpose of the utility model is to adopt novel energy utilization patterns, provide a kind of based on the time current-sharing and alternating flow coupling TRT.
Based on the time current-sharing and alternating flow coupling TRT comprise driving tube Upstream section 1, driving tube tract 2, resonatron 3, jockey 4 and linear electric generator; Communicate with driving tube Upstream section 1, driving tube tract 2 respectively in both sides, resonatron 3 middle part, resonatron 3 two ends are provided with jockey 4 and link to each other with linear electric generator; Perhaps resonatron 3 closed at both ends are provided with jockey 4 in resonatron 3 sides and link to each other with linear electric generator.
The cross section of described driving tube Upstream section 1 and driving tube tract 2 is: circle or quadrangle, the appearance profile of driving tube Upstream section 1 and driving tube tract 2 is: uiform section pipe or reducer pipe.
The cross section of described resonatron 3 is: circle or quadrangle, the appearance profile of resonatron 3 is: uiform section amasss the branch type pipe that pipe, reducer pipe or an end have a plurality of branches.
Described linear electric generator is moving-magnetic type or moving-coil type linear electric generator; Said moving-magnetic type is sent out in the linear electric generator permanent magnet 8 and is moving component; And link together with supporting spring 9, generator piston 6 through piston rod 10, coil 7 is around the inside that is fixed on generator; Coil 7 in the said moving-coil type linear electric generator is a moving component, and is installed on the generator piston 6, and generator piston 6 links together through piston rod 10 and support spring 9, and permanent magnet 8 is fixed on the inside of generator.
The time current-sharing TRT that the utility model proposes is different from the TRT that existing mode drives fully.At first this device is based on aeroacoustics, with the time current-sharing be converted into a standing-wave sound field frequency stabilization, that have higher energy-flux density.Secondly, according to the operating characteristic and the layout needs of linear electric generator, can change the quantity of size, cross sectional shape and the resonatron of pipeline, to obtain best matching performance.Especially, this energy conversion device is simple in structure, the life-span is long, efficient is high, for the channel flow physical efficiency of utilizing extensive existence and wind energy etc. provide a kind of novelty, method reliably.
Description of drawings
Current-sharing TRT principle schematic when Fig. 1 is;
Fig. 2 be band double-piston linear electric generator the time current-sharing TRT structural representation;
Fig. 3 be band single-piston linear power generation machine the time current-sharing TRT structural representation;
Among the figure: driving tube Upstream section 1, driving tube tract 2, resonatron 3, jockey 4, dual Piston linear electric generator 5, generator piston 6, coil 7, permanent magnet 8, support spring 9, piston rod 10, bracing frame 11, external load 12, single piston type straight line generator 13.
Embodiment
The Shi Junliu TRT comprises driving tube Upstream section 1, driving tube tract 2, resonatron 3, jockey 4 and linear electric generator; Communicate with driving tube Upstream section 1, driving tube tract 2 respectively in both sides, resonatron 3 middle part, resonatron 3 two ends are provided with jockey 4 and link to each other with linear electric generator; Perhaps resonatron 3 closed at both ends are provided with jockey 4 in resonatron 3 sides and link to each other with linear electric generator.
The cross section of described driving tube Upstream section 1 and driving tube tract 2 is: circle or quadrangle, the appearance profile of driving tube Upstream section 1 and driving tube tract 2 is: uiform section pipe or reducer pipe.
The cross section of described resonatron 3 is: circle or quadrangle, the appearance profile of resonatron 3 is: uiform section amasss the branch type pipe that pipe, reducer pipe or an end have a plurality of branches.
Described linear electric generator is moving-magnetic type or moving-coil type linear electric generator; Said moving-magnetic type is sent out in the linear electric generator permanent magnet 8 and is moving component; And link together with supporting spring 9, generator piston 6 through piston rod 10, coil 7 is around the inside that is fixed on generator; Coil 7 in the said moving-coil type linear electric generator is a moving component, and is installed on the generator piston 6, and generator piston 6 links together through piston rod 10 and support spring 9, and permanent magnet 8 is fixed on the inside of generator.
Based on the time current-sharing and alternating flow coupling electricity-generating method be: the time current-sharing in driving tube, flow through how much sudden changes of driving tube Upstream section 1 harmonious vibration tube 3 junctions; The boundary layer fluid of driving tube Upstream section 1 is come off; And form whirlpool at the opening part of resonatron 3; Stagnation fluid positive energy exchange in whirlpool and the resonatron 3; Cause the self-oscillation of resonatron 3 inner fluids, this by the time current-sharing swash the pressure oscillation that acoustic effect produces and act on the generator piston 6 of linear electric generator, make it drive permanent magnet 8 or coil 7 rectilinear motion periodically in magnetic field; The induced electromotive force that produces is drawn electric energy through external load 12, the conversion process of equal stream energy-sound field ability-electric energy when finally having accomplished.
Current-sharing is when described: the one-way fluid with remarkable kinetic energy.
Described one-way fluid with remarkable kinetic energy is: wind or pipeline fluid.
Need to prove: the linear electric generator that is applied in this patent can have multiple pattern, and pattern commonly used mainly contains moving-iron type linear electric generator, moving-magnetic linear generator and moving-coil type linear electric generator.The linear electric generator that adopts among Fig. 2 is a dual Piston linear electric generator 5, and the linear electric generator that adopts among Fig. 3 is single piston type straight line generator 13.Linear electric generator can also be laid on the side wall surface of resonatron 3 according to distribution of sound field except being arranged in the two ends of resonatron 3.According to the operating characteristic and layout needs of linear electric generator, the quantity of the size of pipeline, cross sectional shape and resonatron in the current-sharing TRT in the time of can changing is to obtain best matching performance.The type of attachment of resonatron and driving tube Upstream section and driving tube tract can be right angle or fillet pattern, and the sound field intensity that just under same time average velocity, excites is different.In addition resonatron can do not influence internal acoustic field and do not cause under the situation of bigger dissipation crooked arbitrarily, also needn't be vertical with driving tube, can become angle arbitrarily, just can driven generating set work as long as can inspire stable sound field.
Claims (4)
- One kind based on the time current-sharing and alternating flow coupling TRT, it is characterized in that comprising driving tube Upstream section (1), driving tube tract (2), resonatron (3), jockey (4) and linear electric generator; Communicate with driving tube Upstream section (1), driving tube tract (2) respectively in both sides, resonatron (3) middle part, resonatron (3) two ends are provided with jockey (4) and link to each other with linear electric generator; Perhaps resonatron (3) closed at both ends is provided with jockey (4) in resonatron (3) side and links to each other with linear electric generator.
- According to claim 1 described a kind of based on the time current-sharing and alternating flow coupling TRT; It is characterized in that: the cross section of described driving tube Upstream section (1) and driving tube tract (2) is: circle or quadrangle, the appearance profile of driving tube Upstream section (1) and driving tube tract (2) is: uiform section pipe or reducer pipe.
- According to claim 1 described a kind of based on the time current-sharing and alternating flow coupling TRT; It is characterized in that: the cross section of described resonatron (3) is: circle or quadrangle, the appearance profile of resonatron (3) is: uiform section amasss the branch type pipe that pipe, reducer pipe or an end have a plurality of branches.
- 4. according to claim 1 a kind of based on the time current-sharing and alternating flow coupling TRT; It is characterized in that: described linear electric generator is moving-magnetic type or moving-coil type linear electric generator; It is moving component that said moving-magnetic type is sent out permanent magnet in the linear electric generator (8); And link together with supporting spring (9), generator piston (6) through piston rod (10), coil (7) is around the inside that is fixed on generator; Coil (7) in the said moving-coil type linear electric generator is a moving component; And be installed on the generator piston (6); Generator piston (6) links together with supporting spring (9) through piston rod (10), and permanent magnet (8) is fixed on the inside of generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203567913U CN202210747U (en) | 2011-09-22 | 2011-09-22 | Generating set based on coupling effect of mean flow and alternating flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203567913U CN202210747U (en) | 2011-09-22 | 2011-09-22 | Generating set based on coupling effect of mean flow and alternating flow |
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| CN202210747U true CN202210747U (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203567913U Expired - Fee Related CN202210747U (en) | 2011-09-22 | 2011-09-22 | Generating set based on coupling effect of mean flow and alternating flow |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377315A (en) * | 2011-09-22 | 2012-03-14 | 浙江大学 | Power generation device and method based on coupling effect of time-mean flow and alternating flow |
| CN112117934A (en) * | 2020-09-28 | 2020-12-22 | 广州大学 | Power generation device for absorbing vibration energy |
-
2011
- 2011-09-22 CN CN2011203567913U patent/CN202210747U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377315A (en) * | 2011-09-22 | 2012-03-14 | 浙江大学 | Power generation device and method based on coupling effect of time-mean flow and alternating flow |
| CN102377315B (en) * | 2011-09-22 | 2013-11-27 | 浙江大学 | Power generation device and method based on coupling effect of time-meflow and alternating flow |
| CN112117934A (en) * | 2020-09-28 | 2020-12-22 | 广州大学 | Power generation device for absorbing vibration energy |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20120922 |