CN101852680A - Pneumatic resonance heating experimental device - Google Patents
Pneumatic resonance heating experimental device Download PDFInfo
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- CN101852680A CN101852680A CN200910081279A CN200910081279A CN101852680A CN 101852680 A CN101852680 A CN 101852680A CN 200910081279 A CN200910081279 A CN 200910081279A CN 200910081279 A CN200910081279 A CN 200910081279A CN 101852680 A CN101852680 A CN 101852680A
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- resonance
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- resonator cavity
- resonatron
- packing ring
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Abstract
The invention relates to a pneumatic resonance heating experimental device which can conveniently research the basic laws of pneumatic resonance heating. The components of the pneumatic resonance heating experimental device can be freely dismounted; the area of a resonance nozzle can be changed by regulating the position and the diameter of a resonance nozzle regulating piece (2) or changing the inner diameter of the resonance nozzle(4); the height of a resonant cavity can be changed by regulating the thickness of a resonant cavity adjusting washer (9), and the diameter of the resonant cavity can be changed by regulating the diameter of an axially-exhausting resonant cavity (10) or a radial-exhausting resonant cavity (19); the exhausting speed can be changed by changing the hole diameter of an exhausting pore plate (11); and a temperature sensor (18) is welded on a resonance head (14) in a spot welding manner, and both the temperature sensor and the resonance head are arranged in a protective sleeve (15).
Description
[technical field]
The present invention relates to a kind of Pneumatic resonance heating experimental device.
[background technology]
The Pneumatic resonance firing technique is based on a kind of novel sparking mode of Pneumatic resonance thermal effect.In the coaxial jet that is placed on nozzle of the hollow tube (being called resonatron) of one one end sealing other end opening, by setting up specific Pneumatic resonance condition, make the inside and outside moving phase coupling of Pneumatic resonance pipe, form the self-sustained oscillation interface at the mouth of pipe.Rely on the outer energy of incoming flow continuously of resonatron to keep, to produce periodic high frequency shock wave vibration in the Pneumatic resonance pipe, pipe range district about resonatron end 30%, by irreversible entropy increasing process, the energy of pressure gas irreversibly is converted into heat, produce the resonatron temperature rise of end windings and parts that surpasses resonatron extraneous current stagnation temperature several times, Pneumatic resonance thermal effect that Here it is.With its incendiary source that forms high temperature high energy is exactly the ultimate principle of Pneumatic resonance firing technique.The Pneumatic resonance heating phenomena relates to a series of complex flow process, does not also have the suitable achievement in research of engineering at present aspect theoretical, can't really accomplish the purpose that is directed study by numerical result.The Pneumatic resonance phenomenon is subjected to multiple factor affecting, and as form of nozzle, resonatron form, resonator cavity feature, exhaust form, resonator gas etc., for obtaining the performance of Pneumatic resonance, Pneumatic resonance heating experiment is most important means.
[summary of the invention]
The purpose of this invention is to provide a kind of simple, reliable Pneumatic resonance heating experimental device, can study the basic law of Pneumatic resonance heating easily.
Pneumatic resonance heating experimental device is by union (screwed)bonnet (UB (1); resonance nozzle adjustment part (2); the resonance nozzle is adjusted packing ring (3); resonance nozzle (4); upper sealing washer (5); overcoat (6); resonance gas welding tip (7); lower seal (8); resonator cavity is adjusted packing ring (9); axial exhaust formula resonator cavity (10); vent panel (11); resonatron (12); interior cover (13); resonance head (14); protective sleeve (15); gland nut (16); look nut (17); temperature sensor (18); radially exhaust resonator cavity (19) is formed.Each parts of Pneumatic resonance heating experimental device all can freely be dismantled.Can change the resonance jet area by the internal diameter of adjusting resonance nozzle adjustment part position, diameter or change resonance nozzle.Adjust gasket thickness and can change the resonator cavity spacing by adjusting resonator cavity, adjust axial exhaust formula resonator cavity or radially the diameter of exhaust resonator cavity can change the resonator cavity diameter.Can change the chamber by the bore dia that changes vent panel presses.Temperature sensor adopts the spot welding mode to be welded on the resonance head, and temperature sensor and resonance head are all within protective sleeve.
The advantage that the present invention has is: (a) can adjust nozzle form and jet area and replaceable, convenient research nozzle form and jet area are to the resonance Effect on Performance; (b) can adjust resonator cavity spacing and diameter and replaceable, convenient research cavity resonator structure parameter is to the resonant parameter Effect on Performance; (c) can adjust vent port discharge directions and vent port diameter and replaceable, press the resonance Effect on Performance in convenient research exhaust mode and chamber; (d) the outside temperature sensor that adopts spot welded type of resonance head, the temperature in the time of can being convenient for measuring resonance, volume is little, easy accessibility; (e) protective sleeve can prevent that temperature sensor from being blown off, but also the resonance head is blown on by air-flow and has influence on parameter measurement; (f) resonatron is replaceable, convenient research different structure resonatron performance.
[description of drawings]
Fig. 1 is an axial exhaust formula Pneumatic resonance heat test device
Fig. 2 is an exhaust Pneumatic resonance heat test device radially
Fig. 3 is the resonance nozzle
Fig. 4 is a resonance nozzle adjustment part
Fig. 5 is a circular hole resonance nozzle
Fig. 6 is that resonator cavity is adjusted packing ring
Fig. 7 is an axial exhaust formula resonator cavity
Fig. 8 is a vent panel
Fig. 9 is an exhaust resonator cavity radially
Figure 10 is a resonatron
Figure 11 is a look nut
[embodiment]
Further specify the present invention below in conjunction with accompanying drawing.
As shown in Figure 1 with Pneumatic resonance heating experimental device shown in Figure 2 by union (screwed)bonnet (UB (1); resonance nozzle adjustment part (2); the resonance nozzle is adjusted packing ring (3); resonance nozzle (4); upper sealing washer (5); overcoat (6); resonance gas welding tip (7); lower seal (8); resonator cavity is adjusted packing ring (9); axial exhaust formula resonator cavity (10); vent panel (11); resonatron (12); interior cover (13); resonance head (14); protective sleeve (15); gland nut (16); look nut (17); temperature sensor (18); radially exhaust resonator cavity (19) is formed.
Resonance nozzle (4) is arranged in overcoat, and adopts the sliding right alignment that guarantees with overcoat (6) of joining between the overcoat (6).Overcoat (6) side perforate, tapping welding resonance gas welding tip (7), the resonance gas that enters resonance nozzle (4) from resonance gas welding tip realizes and extraneous sealing that by last O-ring seal (5) and lower seal (8) last O-ring seal (5) and lower seal (8) are common o type rubber seal.Resonance nozzle (4) center is a resonance nozzle adjustment part (2), adopts sliding joining between resonance nozzle adjustment part (2) and the resonance nozzle (4).Resonance nozzle (4) and both subassemblies of resonance nozzle adjustment part (2) are nozzle assembly.By changing the resonance nozzle of different-diameter D, can change the resonance nozzle od, as Fig. 3.By changing the resonance nozzle adjustment part of different-diameter d, can change the resonance nozzle inside diameter, as Fig. 4.Union (screwed)bonnet (UB (1) is connected with overcoat (6) by engage thread, is used for fixing nozzle assembly.Adjust packing ring (3) for the resonance nozzle between union (screwed)bonnet (UB (1) and the resonance nozzle adjustment part (2), adjust packing ring (4) and adopt red copper to make, and carry out annealing in process, this packing ring is used to adjust the position of resonance nozzle adjustment part and have sealing function.When adjusting nozzle adjustment part L, the annular resonance nozzle can be changed into the circular resonant nozzle, as Fig. 5.
The device that resonator cavity is adjusted packing ring (9), axial exhaust formula resonator cavity (10), vent panel (11), resonatron (12), resonance head (14), the common formation of protective sleeve (15) is an axial exhaust formula resonance heating arrangement, as Fig. 1.Resonator cavity is adjusted packing ring (9), radially exhaust resonator cavity (19), resonatron (12), resonance head (14), the common device that constitutes of protective sleeve (15) are radial resonance heating arrangement such as Fig. 2.
In axial exhaust formula resonance heating arrangement, resonator cavity is adjusted packing ring (9) and is positioned between resonance nozzle (4) and the axial exhaust formula resonator cavity (10), adopts the resonator cavity of different-thickness h to adjust the height that packing ring can be adjusted resonator cavity, as Fig. 6.Axial exhaust formula resonator cavity (10) is positioned at resonator cavity to be adjusted between packing ring (9) and the vent panel (11), and the axial exhaust formula resonator cavity of employing different-diameter D can be adjusted the diameter of resonator cavity, as Fig. 7.Vent panel (11) is positioned between resonator cavity and the resonatron (12), has aperture on the vent panel, adopts different exhaust hole diameter d can adjust the chamber and presses, as Fig. 8.Resonatron (12) is fixing by interior cover (13), and interior cover (13) is fixing by gland nut (16) and overcoat (6).In exhaust resonance heating arrangement radially, the chamber presses the resonant cavity diameter by adjusting radially exhaust resonator cavity (19) hole diameter d and inside diameter D adjustment, as Fig. 9; Resonator cavity spacing method of adjustment is identical with the axial type method of adjustment, adjusts packing ring (9) adjustment by resonator cavity.
Resonatron (12) structure as shown in figure 10, resonatron (12) is provided with the exhaust passage.Screw thread is arranged outside the resonatron (12), and protective sleeve (15) links to each other with resonatron by this screw thread.Resonatron (12) afterbody is resonance head (14), and both are welded to connect.Resonance head (14) is outside to connect temperature sensor (18) by the spot welding mode; resonance head (14) and temperature sensor (18) all are arranged in protective sleeve; can carry out temperature protection to resonance head (14); prevent air-flow through out-of-date to thermometric influence; also temperature sensor (18) is protected simultaneously, prevented that temperature sensor (18) from being blown off.Adopt the look nut (17) of different-diameter d can adjust different air pressure to the resonance Effect on Performance, as Figure 11.
When carrying out Pneumatic resonance heating experiment, resonator gas enters resonance nozzle (4) by resonator gas welding tip (7), spray into resonatron (12) resonance then, resonance head (14) is heated intensification under the effect of Pneumatic resonance heating effect, and resonator gas is discharged by vent port.The temperature sensor (18) that resonance head (14) is located can measure heated temperature in real time, judges the resonance performance by temperature rise rate and temperature value.
Claims (3)
1. Pneumatic resonance heating experimental device is adjusted by union (screwed)bonnet (UB (1), resonance nozzle adjustment part (2), resonance nozzle that packing ring (3), resonance nozzle (4), upper sealing washer (5), overcoat (6), resonance gas welding tip (7), lower seal (8), resonator cavity are adjusted packing ring (9), axial exhaust formula resonator cavity (10), vent panel (11), resonatron (12), interior cover (13), resonance head (14), protective sleeve (15), gland nut (16), look nut (17), temperature sensor (18), radially exhaust resonator cavity (19) is formed, and it is characterized in that:
Resonance nozzle (4) is arranged in overcoat, and adopts between the overcoat (6) sliding joining.Overcoat (6) side perforate, tapping welding resonance gas welding tip (7), the resonance gas that enters resonance nozzle (4) from resonance gas welding tip realizes and extraneous sealing that by last O-ring seal (5) and lower seal (8) last O-ring seal (5) and lower seal (8) are common o type rubber seal; Resonance nozzle (4) center is a resonance nozzle adjustment part (2), adopts sliding joining between resonance nozzle adjustment part (2) and the resonance nozzle (4); Union (screwed)bonnet (UB (1) is connected with overcoat (6) by engage thread; Adjust packing ring (3) for the resonance nozzle between union (screwed)bonnet (UB (1) and the resonance nozzle adjustment part (2), adjust packing ring (4) and adopt red copper to make, and carry out annealing in process.
Resonator cavity is adjusted packing ring (9) and is positioned between resonance nozzle (4) and the axial exhaust formula resonator cavity (10); Axial exhaust formula resonator cavity (10) is positioned at resonator cavity and adjusts between packing ring (9) and the vent panel (11); Vent panel (11) is positioned between resonator cavity and the resonatron (12), has aperture on the vent panel; Resonatron (12) is fixing by interior cover (13), and interior cover (13) is fixing by gland nut (16) and overcoat (6); Resonatron (12) is provided with the exhaust passage.
Screw thread is arranged outside the resonatron (12), and protective sleeve (15) links to each other with resonatron by this screw thread; Resonatron (12) afterbody is resonance head (14), and both are welded to connect; Resonance head (14) is outside to connect temperature sensor (18) by the spot welding mode, and resonance head (14) and temperature sensor (18) all are arranged in protective sleeve; Look nut (17) links to each other with interior cover (13) by engage thread.
2. Pneumatic resonance heating experimental device according to claim 1 is characterized in that: resonance nozzle adjustment part (2), resonance nozzle are adjusted packing ring (3), resonance nozzle (4), resonator cavity adjustment packing ring (9), axial exhaust formula resonator cavity (10), vent panel (11), resonatron (12), look nut (17), radially exhaust resonator cavity (19) is replaceable.
3. Pneumatic resonance heating experimental device according to claim 1 is characterized in that: axial exhaust formula resonator cavity (10) can exchange with exhaust (19) radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910081279XA CN101852680B (en) | 2009-04-01 | 2009-04-01 | Pneumatic resonance heating experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910081279XA CN101852680B (en) | 2009-04-01 | 2009-04-01 | Pneumatic resonance heating experimental device |
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| Publication Number | Publication Date |
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| CN101852680A true CN101852680A (en) | 2010-10-06 |
| CN101852680B CN101852680B (en) | 2012-06-27 |
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| CN200910081279XA Expired - Fee Related CN101852680B (en) | 2009-04-01 | 2009-04-01 | Pneumatic resonance heating experimental device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441643A (en) * | 2018-09-27 | 2019-03-08 | 北京航空航天大学 | Micro turbojet engine and gas-turbine combustion chamber igniter |
| CN112033676A (en) * | 2020-09-03 | 2020-12-04 | 中铁隧道局集团有限公司 | Shield machine main bearing detection and repair method |
| CN113317096A (en) * | 2021-05-17 | 2021-08-31 | 江苏大学 | Orchard defroster based on pneumatic resonant heating device buckles |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109669A (en) * | 1989-09-28 | 1992-05-05 | Rockwell International Corporation | Passive self-contained auto ignition system |
| CN2937841Y (en) * | 2005-11-01 | 2007-08-22 | 雍占锋 | Microway plasma burner |
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2009
- 2009-04-01 CN CN200910081279XA patent/CN101852680B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441643A (en) * | 2018-09-27 | 2019-03-08 | 北京航空航天大学 | Micro turbojet engine and gas-turbine combustion chamber igniter |
| CN109441643B (en) * | 2018-09-27 | 2020-12-01 | 北京航空航天大学 | Micro-turbojet engine and ignition device for combustion chamber of gas turbine |
| CN112033676A (en) * | 2020-09-03 | 2020-12-04 | 中铁隧道局集团有限公司 | Shield machine main bearing detection and repair method |
| CN112033676B (en) * | 2020-09-03 | 2022-06-24 | 中铁隧道局集团有限公司 | Shield machine main bearing detection device and repair method |
| CN113317096A (en) * | 2021-05-17 | 2021-08-31 | 江苏大学 | Orchard defroster based on pneumatic resonant heating device buckles |
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| Publication number | Publication date |
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| CN101852680B (en) | 2012-06-27 |
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Granted publication date: 20120627 Termination date: 20140401 |