CN103017999A - Flow field characteristic experiment device of combustion chamber of hydrogen-burning gas turbine - Google Patents
Flow field characteristic experiment device of combustion chamber of hydrogen-burning gas turbine Download PDFInfo
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- CN103017999A CN103017999A CN2012105249609A CN201210524960A CN103017999A CN 103017999 A CN103017999 A CN 103017999A CN 2012105249609 A CN2012105249609 A CN 2012105249609A CN 201210524960 A CN201210524960 A CN 201210524960A CN 103017999 A CN103017999 A CN 103017999A
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Abstract
The invention discloses a flow field characteristic experiment device of a combustion chamber of a hydrogen-burning gas turbine. The flow field characteristic experiment device comprises three pairs of bluff body arrangement combustion chamber experiment pieces, a particle image velocimetry (PIV) test platform frame, a PIV test system and a pressure difference and environment temperature test system. The three pairs of bluff body arrangement combustion chamber experiment pieces comprise a front lateral plate, a front bluff body, a back bluff body, an affiliation mechanism of the back bluff body, a front top plate and a back top plate. A tracer particle injection pipe jack is arranged on the front lateral plate, an inlet speed probe jack is arranged on the front top plate, and an outlet speed probe jack is arranged on the back top plate. A tracer particle generator is connected with the tracer particle injection pipe jack on the front lateral plate. The device adopts the PIV test technology, selects reasonable combustion chamber position, reasonably mingles tracer particles into a main gas flow under the effects of the tracer particle generator and a tracer particle injection pipe, enables tracking particles in the test area to be evenly distributed and conducts visualization experiment of cold state flowing speed vector distribution of three pairs of bluff arrangement combustion chambers.
Description
Technical field
The present invention relates to a kind of combustion hydrogen gas turbine experimental provision, particularly a kind of combustion hydrogen gas turbine firing chamber flow field characteristic experimental provision.
Background technology
Exploitation, promotion and application integrated gasification combined cycle for power generation (Integrated Gasification Combined Cycle, be called for short IGCC) technology can realize the sustainable development coal fired power generation of near-zero release.At present, the developed countries such as the U.S., Germany, Britain and Japan all drop into the huge fund IGCC technology of researching and developing and demonstrate, and the process system that the IGCC technology is related and gordian technique have all become the focus of international energy area research exploitation.To using hydrogen-rich synthetic gas and pure hydrogen gas gas-turbine combustion chamber structure and performance and carrying out comprehensive and intensive research with the modern gas turbines coupling, for tachnical storage and engineering demonstration are done in China's power industry " green coal electricity ", significant to the national economy and social development of China.
At present, the IGCC gas turbine is transformed the technological difficulties that run on modern times advanced gas turbine design proposal basis and is: the laminar flame speed of hydrogen air potpourri is very high; The relatively high adiabatic temperature of hydrogen air potpourri, burning produces a large amount of oxides of nitrogen; If flame temperature and nitrogen oxide emission reduce by nitrogen or steam dilution, can reduce burning efficiency; If adopt the premixed of fuel-sean material, rapid reaction and high combustion speed can cause spontaneous combustion and tempering.For these technological difficulties, people have developed and used hydrogen-rich synthetic gas and pure hydrogen gas new ideas gas-turbine combustion chamber technology, and are significant to applying of IGCC.
Develop and use hydrogen-rich synthetic gas and pure hydrogen gas gas-turbine combustion chamber, carry out new concept combustion chamber experimental study under operating condition, research cycle is long, and risk is high, and funds consume huge.Conventional gas-turbine combustion chamber flow characteristics experimental study, adopt five-hole probe or seven-hole probe measuring speed field, the volume coordinate location positioning of measuring point is inaccurate, if chamber structure is complicated, probe also can the havoc measuring point velocity distribution, not only can not reflect exactly the real velocity distribution in firing chamber, and Experiment Data Records and processing are loaded down with trivial details.Although at present part adopts particle imaging (the Particle Image Velocimetry that tests the speed, abbreviation PIV) method of testing is carried out Combustor Flows characteristic test research, in the experimentation, trace particle test zone skewness, followability are poor, also can directly affect measurement result.Particularly for different test conditions, present PIV test macro debugging is not only consuming time, and can not draw desirable test result under some operating mode.
Summary of the invention
The problems referred to above that exist for solving prior art, the present invention will design a kind of not damage test zone velocity field, the trace particle test zone is evenly distributed, debugs flexibly and easily, can accurately reflect the convenient PIV visual testing of test zone velocity distribution, data recording and processing technology, combustion hydrogen gas turbine chamber structure form that the three pairs of bluff bodies arrange and flox condition can be simulated, and the experimental provision of experimental study can be carried out for the combustion hydrogen gas turbine firing chamber flow field characteristic that three pairs of bluff bodies are arranged.
To achieve these goals, technical scheme of the present invention is as follows: a kind of combustion hydrogen gas turbine firing chamber flow field characteristic experimental provision comprises three pairs of bluff bodies layout firing chamber experimental pieces, PIV testboard bay, PIV test macro and pressure reduction and environment temperature test macros;
Described three pairs of bluff bodies are arranged the firing chamber experimental piece, comprise front side board, back side panel, base plate, front bluff body, rear bluff body and cum rights thereof, front top plate, dumb light glass, top surface of the glass plate, side glass plate, rear top board, inlet flange and exhaust flange; Have the base plate glass wedged groove on the described base plate, rear bluff body moves conduit, front bluff body caulking groove and pore, and is furnished with spiro rod support; Described front top plate and rear top board all have the top board glass wedged groove; Described front side board has that two, its lower limb link to each other with the left and right sides of base plate respectively, coboundary links to each other with the left and right sides of front top plate respectively; Described back side panel has that two, its lower limb link to each other with the left and right sides of base plate respectively, coboundary links to each other with the left and right sides of rear top board respectively; The dumb light glass plate of arranging in described front side board, back side panel, base plate, base plate glass wedged groove and the top board glass wedged groove, top surface of the glass plate and side glass plate consist of the mainstream channel that three pairs of bluff bodies are arranged the firing chamber experimental piece; Have trace particle playpipe jack on the front side board; Front top plate has inlet velocity probe jack, and rear top board has velocity of discharge probe jack;
Described base plate contains pore, is used for the gas injection experiment of rear bluff body;
Described front bluff body is embedded in the front bluff body caulking groove in the base plate, is moved with air-flow to prevent front bluff body; Described rear bluff body and cum rights thereof comprise rear bluff body, screw rod, rear bluff body bearing and rear bluff body supporting bearing, rear bluff body bearing has bottom outlet, screw rod links to each other with rear bluff body bearing, rear bluff body bearing penetrates screw by bottom outlet and links to each other with rear bluff body, screw rod is fixed on the spiro rod support, rear bluff body rest base is furnished with rear bluff body supporting bearing, bluff body moved in the conduit after rear bluff body supporting bearing was embedded into base plate, screw rod can rotate in spiro rod support, the bluff body bearing arranges that along three pairs of bluff bodies the firing chamber experimental piece moves axially together with rear bluff body after driving, in order to regulate the spacing between rear bluff body and the front bluff body;
Described inlet flange arranges that with three pairs of bluff bodies the front portion of firing chamber experimental piece is connected, and exhaust flange arranges that with three pairs of bluff bodies the rear portion of firing chamber experimental piece is connected;
Described PIV testboard bay comprises iron table, main support and adjustable support, and described adjustable support comprises that top angle steel, steel bar with holes and PIV camera lens hang steel bar; Adjustable support is connected by the top angle steel with main support, and main support is connected with the iron table by bolt; Described PIV camera lens hangs on the steel bar and is connected with the PIV camera lens by screw; The hole of steel bar with holes penetrates bolt and hangs steel bar with the PIV camera lens and be connected; Steel bar with holes is connected with the top angle steel by the bolt that passes, and the screw of angle steel both sides, top is by penetrating on the main support slideway that is bolted to main support;
Described PIV test macro comprises air compressor, gas bomb, gas purification bottle, trace displaying particle generator, laser generator, light-conducting arm, Laser emission camera lens, PIV camera lens, synchronizer and desktop computer a, described air compressor is connected by flexible pipe with gas bomb, gas bomb is connected by flexible pipe with the gas purification bottle, and the gas purification bottle is connected by flexible pipe with trace displaying particle generator; Described trace displaying particle generator arranges that by trace particle playpipe and three pairs of bluff bodies the firing chamber experimental piece is connected; Described laser generator links to each other with synchronizer by signal wire, and described PIV camera lens links to each other with synchronizer by signal wire, and described synchronizer is connected with desktop computer a by signal wire; Described laser generator is connected with light-conducting arm, and light-conducting arm is connected with the Laser emission camera lens;
Described trace displaying particle generator links to each other with flexible pipe with the trace particle playpipe, and the trace particle playpipe links to each other with trace particle playpipe jack on the front side board, is used for arranging that to three pairs of bluff bodies the firing chamber experimental pieces discharge trace particle;
Described pressure reduction and environment temperature test macro comprise direct supply, data collecting instrument, differential pressure pickup a, differential pressure pickup b, differential pressure pickup c, differential pressure pickup d, thermopair, inlet velocity probe (52), velocity of discharge probe and desktop computer b; Described direct supply is connected with data collecting instrument by electric wire, and described inlet velocity probe (52) is connected with differential pressure pickup c with differential pressure pickup a respectively by flexible rubber hose; Described velocity of discharge probe is connected with differential pressure pickup d with differential pressure pickup b respectively by flexible rubber hose, also is connected with differential pressure pickup c simultaneously; Described thermopair places environment, and described differential pressure pickup a, differential pressure pickup b, differential pressure pickup c, differential pressure pickup d and thermopair all are connected with data collecting instrument by signal wire; Data collecting instrument is connected by signal wire with desktop computer b.
The course of work of the present invention is as follows:
Gas flows into three pairs of bluff bodies by inlet flange and arranges the firing chamber experimental piece, and the trace particle playpipe discharges trace particle at front side board trace particle playpipe jack position.The jeting effect that the formation of trace particle playpipe is fabulous, air-flow is by front side board, equably blending trace particle.Blending has the gas of trace particle, and flow through front bluff body and rear bluff body form Observable velocity distribution zone at the firing chamber test zone.Then, air-flow is discharged in the middle of the atmosphere by exhaust flange.
Desktop computer is by synchronizer control laser generator and PIV camera lens, control laser generator laser occurrence frequency, laser generation intensity, PIV camera lens take pictures frequency and laser generator laser occurs and the PIV camera lens is taken pictures simultaneously match.The laser of laser generator emission via laser guide arm, projects three pairs of appointed areas in the experimental piece of bluff bodies layout firing chamber by the Laser emission camera lens.Air compressor with compressed air delivery to gas bomb, pressure-air through gas bomb gas coming through purification bottle to trace displaying particle generator, trace particle is discharged by trace displaying particle generator, enters three pairs of bluff bodies by the trace particle playpipe and arranges that firing chamber experimental piece and primary air produce the flow field that trace particle is evenly distributed.The velocity field trace particle of PIV lens shooting scattering laser, import pictures taken into computer a after, show that through the software computing three pairs of bluff bodies of test arrange firing chamber experimental piece inner region velocity distribution situations.
Inlet velocity probe (52) is used for measuring three pairs of bluff bodies and arranges firing chamber experimental piece inlet velocity, the velocity of discharge probe is used for measuring three pairs of bluff bodies and arranges firing chamber experimental piece exit velocity, the computer expert crosses data acquisition software, and the data such as the pressure reduction of data Acquisition Instrument and temperature are gathered and record.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention adopts the PIV measuring technology, selected rational position, firing chamber, under trace displaying particle generator and the effect of trace particle playpipe, reasonably with the trace particle blending in primary air, so that the test zone trace particle is evenly distributed, in the situation that breakdown speed does not distribute, carry out three pairs of bluff bodies and arrange the research of Cold Flow in Combustor velocity distribution visualized experiment.
2, in the PIV testboard bay of the present invention, be provided with adjustable support, can carry out height between PIV camera lens and test block and the adjusting of test zone, can effectively dwindle the debug time of PIV test macro.The PIV test macro imports test data in the computer into, and the application data handling procedure records and processes, and can record easily and process test result, can reflect exactly to test to get velocity distribution.
3, the present invention has the hole of steel bar with holes to penetrate bolt to hang steel bar with the PIV camera lens and be connected, and the height that hangs that the PIV camera adjusting hangs steel bar is regulated in the hole that penetrates differing heights by bolt.Steel bar with holes is connected with the top angle steel by bolt.The fixed belt hole steel bar is connected with the top angle steel by the bolt that passes, and the screw of angle steel both sides, top penetrates on the main support slideway that is bolted to main support, and the top angle steel can move along the main support slideway, is used for adjusting the PIV lens location.So that the debugging of PIV test macro is flexible.
4, rear bluff body bearing of the present invention penetrates screw by bottom outlet and links to each other with rear bluff body, can replace the rear bluff body of different structure form.Screw rod can rotate in spiro rod support, in order to regulate the spacing between rear bluff body and the front bluff body.Bluff body and front and back bluff body distance behind the different geometries form the chamber structure form that different bluff bodies are arranged.Under the curved cavity condition that different front and back bluff body consists of, circulation airflow can produce different flox conditions.Can simulate combustion hydrogen gas turbine chamber structure form and flox condition that three pairs of bluff bodies are arranged.
5, the present invention is directed to the IGCC gas turbine and transform the technological difficulties that run on modern times advanced gas turbine design proposal basis, form the new concept combustion chamber model structure form that different bluff bodies are arranged, it is carried out experimental study, to draw experimental result and flowing law and be used for combustion machine structural design theory basis, shorten the R﹠D cycle of firing chamber, reduced research cost.
Description of drawings
10 in the total accompanying drawing of the present invention, wherein:
Fig. 1 is composition schematic diagram of the present invention.
(wherein: dotted line is high-pressure air pipe, and thick line is data line; Straight line is the import static pressure, and thick straight line is the import stagnation pressure, and straight dotted line is the outlet static pressure, and thick dashed line is the outlet stagnation pressure; Black thick straight line is data line)
Fig. 2 is that three pairs of bluff bodies are arranged firing chamber experimental piece schematic diagram.
Fig. 3 is the base plate vertical view.
Fig. 4 is the base plate left view.
Fig. 5 is rear bluff body and cum rights's vertical view thereof.
Fig. 6 is rear bluff body and cum rights's upward view thereof.
Fig. 7 is PIV testboard bay schematic diagram.
Fig. 8 is PIV testboard bay vertical view.
Fig. 9 is the adjustable support schematic diagram.
Figure 10 is the adjustable support vertical view.
Among the figure: 1, three pairs of bluff bodies are arranged firing chamber experimental piece, 2, the PIV testboard bay, 3, front side board, 4, back side panel, 5, base plate, 6, front bluff body, 7, rear bluff body and cum rights thereof, 8, front top plate, 9, the dumb light glass plate, 10, rear top board, 11, inlet velocity probe jack, 12, velocity of discharge probe jack, 13, the top board glass wedged groove, 14, trace particle playpipe jack, 15, the base plate glass wedged groove, 16, rear bluff body moves conduit, and 17, front bluff body caulking groove, 18, spiro rod support, 19, pore, 20, the trace particle playpipe, 21, rear bluff body, 22, screw rod, 23, rear bluff body bearing, 24, bottom outlet, 25, rear bluff body supporting bearing, 26, the iron table, 27, main support, 28, adjustable support, 29, the main support slideway, 30, the top angle steel, 31, steel bar with holes, 32, the PIV camera lens hangs steel bar, and 33, the PIV test macro, 34, air compressor, 35, gas bomb, 36, the gas purification bottle, 37, trace displaying particle generator, 38, laser generator, 39, light-conducting arm, 40, the Laser emission camera lens, 41, the PIV camera lens, 42, synchronizer, 43, desktop computer a, 44, pressure reduction and environment temperature test macro, 45, direct supply, 46, data collecting instrument, 47, differential pressure pickup a, 48, differential pressure pickup b, 49, differential pressure pickup c, 50, differential pressure pickup d, 51, thermopair, 52, the inlet velocity probe, 53, the velocity of discharge probe, 54, desktop computer b, 55, inlet flange, 56, exhaust flange, 57, the top surface of the glass plate, 58, the side glass plate.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and specific embodiments.Shown in Fig. 1-10, a kind of combustion hydrogen gas turbine firing chamber flow field characteristic experimental provision comprises three pairs of bluff bodies layout firing chamber experimental pieces 1, PIV testboard bay 2, PIV test macro 33 and pressure reduction and environment temperature test macros 44;
Described three pairs of bluff bodies are arranged firing chamber experimental piece 1, comprise front side board 3, back side panel 4, base plate 5, front bluff body 6, rear bluff body and cum rights 7 thereof, front top plate 8, dumb light glass, top surface of the glass plate 57, side glass plate 58, rear top board 10, inlet flange 55 and exhaust flange 56; Have base plate glass wedged groove 15 on the described base plate 5, rear bluff body moves conduit 16, front bluff body caulking groove 17 and pore 19, and is furnished with spiro rod support 18; Described front top plate 8 and rear top board 10 all have top board glass wedged groove 13; Described front side board 3 has that two, its lower limb link to each other with the left and right sides of base plate 5 respectively, coboundary links to each other with the left and right sides of front top plate 8 respectively; Described back side panel 4 has that two, its lower limb link to each other with the left and right sides of base plate 5 respectively, coboundary links to each other with the left and right sides of rear top board 10 respectively; The dumb light glass plate 9 of described front side board 3, back side panel 4, base plate 5, base plate glass wedged groove 15 and top board glass wedged groove 13 interior layouts, top surface of the glass plate 57 and side glass plate 58 consist of the mainstream channel that three pairs of bluff bodies are arranged firing chamber experimental piece 1; Have trace particle playpipe jack 14 on the front side board 3; Front top plate 8 has inlet velocity probe jack 11, and rear top board 10 has velocity of discharge probe jack 12;
Described base plate 5 contains pore 19, is used for the gas injection experiment of rear bluff body 21;
Described front bluff body 6 is embedded in the front bluff body caulking groove 17 in the base plate 5, is moved with air-flow to prevent front bluff body 6; Described rear bluff body and cum rights 7 thereof comprise rear bluff body 21, screw rod 22, rear bluff body bearing 23 and rear bluff body supporting bearing 25, rear bluff body bearing 23 has bottom outlet 24, screw rod 22 links to each other with rear bluff body bearing 23, rear bluff body bearing 23 penetrates screw by bottom outlet 24 and links to each other with rear bluff body 21, screw rod 22 is fixed on the spiro rod support 18, rear bluff body bearing 23 bottoms are furnished with rear bluff body supporting bearing 25, rear bluff body supporting bearing 25 is embedded into base plate 5 rear bluff bodies and moves in the conduit 16, screw rod 22 can rotate in spiro rod support 18, bluff body bearing 23 arranges that along three pairs of bluff bodies firing chamber experimental piece 1 moves axially together with rear bluff body 21 after driving, in order to regulate the spacing between rear bluff body 21 and the front bluff body 6;
Described inlet flange 55 arranges that with three pairs of bluff bodies the front portion of firing chamber experimental piece 1 is connected, and exhaust flange 56 arranges that with three pairs of bluff bodies the rear portion of firing chamber experimental piece 1 is connected;
Described PIV testboard bay 2 comprises iron table 26, main support 27 and adjustable support 28, and described adjustable support 28 comprises that top angle steel 30, steel bar with holes 31 and PIV camera lens hang steel bar 32; Adjustable support 28 is connected by top angle steel 30 with main support 27, and main support 27 is connected with iron table 26 by bolt; Described PIV camera lens hangs on the steel bar 32 and is connected with PIV camera lens 41 by screw; The hole of steel bar 31 with holes penetrates bolt and hangs steel bar 32 with the PIV camera lens and be connected; Steel bar 31 with holes is connected with top angle steel 30 by the bolt that passes, and the screw of top angle steel 30 both sides is by penetrating on the main support slideway 29 that is bolted to main support 27;
Described PIV test macro 33 comprises air compressor 34, gas bomb 35, gas purification bottle 36, trace displaying particle generator 37, laser generator 38, light-conducting arm 39, Laser emission camera lens 40, PIV camera lens 41, synchronizer 42 and desktop computer a43, described air compressor 34 and gas bomb 35 are connected by flexible pipe, gas bomb 35 and gas purification bottle 36 are connected by flexible pipe, and gas purification bottle 36 and trace displaying particle generator 37 are connected by flexible pipe; Described trace displaying particle generator 37 arranges that by trace particle playpipe 20 and three pairs of bluff bodies firing chamber experimental piece 1 is connected; Described laser generator 38 links to each other with synchronizer 42 by signal wire, and described PIV camera lens 41 links to each other with synchronizer 42 by signal wire, and described synchronizer 42 is connected with desktop computer a43 by signal wire; Described laser generator 38 is connected with light-conducting arm 39, and light-conducting arm 39 is connected with Laser emission camera lens 40;
Described trace displaying particle generator 37 links to each other with trace particle playpipe 20 usefulness flexible pipes, and trace particle playpipe 20 links to each other with trace particle playpipe jack 14 on the front side board 3, is used for arranging that to three pairs of bluff bodies firing chamber experimental pieces 1 discharge trace particle;
Described pressure reduction and environment temperature test macro 44 comprise direct supply 45, data collecting instrument 46, differential pressure pickup a47, differential pressure pickup b48, differential pressure pickup c49, differential pressure pickup d50, thermopair 51, inlet velocity probe 52, velocity of discharge probe 53 and desktop computer b54; Described direct supply 45 is connected with data collecting instrument 46 by electric wire, and described inlet velocity probe 52 is connected with differential pressure pickup c49 with differential pressure pickup a47 respectively by flexible rubber hose; Described velocity of discharge probe 53 is connected with differential pressure pickup d50 with differential pressure pickup b48 respectively by flexible rubber hose, also is connected with differential pressure pickup c49 simultaneously; Described thermopair 51 places environment, and described differential pressure pickup a47, differential pressure pickup b48, differential pressure pickup c49, differential pressure pickup d50 are connected with thermopair and all are connected with data collecting instrument 46 by signal wire; Data collecting instrument 46 is connected by signal wire with desktop computer b54.
The course of work of the present invention is as follows:
Gas flows into three pairs of bluff bodies by inlet flange 55 and arranges firing chamber experimental piece 1, and trace particle playpipe 20 discharges trace particle in front side board 3 trace particle playpipe jacks 14 positions.The jeting effect that the formation of trace particle playpipe 20 is fabulous, air-flow is by front side board 3, equably blending trace particle.Blending has the gas of trace particle, and flow through front bluff body 6 and rear bluff body 21 form Observable velocity distribution zone at the firing chamber test zone.Then, air-flow is discharged in the middle of the atmosphere by exhaust flange 56.
Desktop computer is by synchronizer 42 control laser generator 38 and PIV camera lenses 41, control laser generator 38 laser occurrence frequencies, laser generation intensity, PIV camera lens 41 take pictures frequency and laser generator 38 laser occur and PIV camera lens 41 is taken pictures simultaneously match.The laser of laser generator 38 emissions via laser guide arm 39, projects three pairs of appointed areas in the bluff bodies layout firing chamber experimental piece 1 by Laser emission camera lens 40.Air compressor 34 with compressed air delivery to gas bomb 35, pressure-air through gas bomb 35 gas coming through purification bottles 36 to trace displaying particle generator 37, trace particle is discharged by trace displaying particle generator 37, enters three pairs of bluff bodies by trace particle playpipe 20 and arranges that firing chamber experimental piece 1 and primary air produce the flow field that trace particle is evenly distributed.PIV camera lens 41 is taken the velocity field trace particle of scattering lasers, import pictures taken into computer a after, show that through the software computing three pairs of bluff bodies of test arrange firing chamber experimental piece 1 inner region velocity distribution situations.
Inlet velocity probe 52 is used for measuring three pairs of bluff bodies and arranges firing chamber experimental piece 1 inlet velocity, velocity of discharge probe 53 is used for measuring three pairs of bluff bodies and arranges firing chamber experimental piece 1 exit velocity, the computer expert crosses data acquisition software, and the data such as the pressure reduction of data Acquisition Instrument 46 and temperature are gathered and record.
Claims (1)
1. a combustion hydrogen gas turbine firing chamber flow field characteristic experimental provision is characterized in that: comprise three pairs of bluff bodies layout firing chamber experimental pieces (1), PIV testboard bay (2), PIV test macro (33) and pressure reduction and environment temperature test macros (44);
Described three pairs of bluff bodies are arranged firing chamber experimental piece (1), comprise front side board (3), back side panel (4), base plate (5), front bluff body (6), rear bluff body and cum rights (7) thereof, front top plate (8), dumb light glass, top surface of the glass plate (57), side glass plate (58), rear top board (10), inlet flange (55) and exhaust flange (56); Have base plate glass wedged groove (15) on the described base plate (5), rear bluff body moves conduit (16), front bluff body caulking groove (17) and pore (19), and is furnished with spiro rod support (18); Described front top plate (8) and rear top board (10) all have top board glass wedged groove (13); Described front side board (3) has that two, its lower limb link to each other with the left and right sides of base plate (5) respectively, coboundary links to each other with the left and right sides of front top plate (8) respectively; Described back side panel (4) has that two, its lower limb link to each other with the left and right sides of base plate (5) respectively, coboundary links to each other with the left and right sides of rear top board (10) respectively; The dumb light glass plate (9) of arranging in described front side board (3), back side panel (4), base plate (5), base plate glass wedged groove (15) and the top board glass wedged groove (13), top surface of the glass plate (57) and side glass plate (58) consist of the mainstream channel that three pairs of bluff bodies are arranged firing chamber experimental piece (1); Have trace particle playpipe jack (14) on the front side board (3); Front top plate (8) has inlet velocity probe jack (11), and rear top board (10) has velocity of discharge probe jack (12);
Described base plate (5) contains pore (19), is used for the gas injection experiment of rear bluff body (21);
Described front bluff body (6) is embedded in the front bluff body caulking groove (17) in the base plate (5), is moved with air-flow to prevent front bluff body (6); Described rear bluff body and cum rights (7) thereof comprise rear bluff body (21), screw rod (22), rear bluff body bearing (23) and rear bluff body supporting bearing (25), rear bluff body bearing (23) has bottom outlet (24), screw rod (22) links to each other with rear bluff body bearing (23), rear bluff body bearing (23) penetrates screw by bottom outlet (24) and links to each other with rear bluff body (21), screw rod (22) is fixed on the spiro rod support (18), rear bluff body bearing (23) bottom is furnished with rear bluff body supporting bearing (25), bluff body moved in the conduit (16) after rear bluff body supporting bearing (25) was embedded into base plate (5), screw rod (22) can rotate in spiro rod support (18), bluff body bearing (23) arranges that along three pairs of bluff bodies firing chamber experimental piece (1) moves axially together with rear bluff body (21) after driving, in order to regulate the spacing between rear bluff body (21) and the front bluff body (6);
Described inlet flange (55) arranges that with three pairs of bluff bodies the front portion of firing chamber experimental piece (1) is connected, and exhaust flange (56) arranges that with three pairs of bluff bodies the rear portion of firing chamber experimental piece (1) is connected;
Described PIV testboard bay (2) comprises iron table (26), main support (27) and adjustable support (28), and described adjustable support (28) comprises that top angle steel (30), steel bar with holes (31) and PIV camera lens hang steel bar (32); Adjustable support (28) is connected by top angle steel (30) with main support (27), and main support (27) is connected with iron table (26) by bolt; Described PIV camera lens hangs steel bar (32) and upward is connected with PIV camera lens (41) by screw; The hole of steel bar with holes (31) penetrates bolt and hangs steel bar (32) with the PIV camera lens and be connected; Steel bar with holes (31) is connected with top angle steel (30) by the bolt that passes, and the screw of top angle steel (30) both sides is by penetrating on the main support slideway (29) that is bolted to main support (27);
Described PIV test macro (33) comprises air compressor (34), gas bomb (35), gas purification bottle (36), trace displaying particle generator (37), laser generator (38), light-conducting arm (39), Laser emission camera lens (40), PIV camera lens (41), synchronizer (42) and desktop computer a(43), described air compressor (34) is connected by flexible pipe with gas bomb (35), gas bomb (35) is connected by flexible pipe with gas purification bottle (36), and gas purification bottle (36) is connected by flexible pipe with trace displaying particle generator (37); Described trace displaying particle generator (37) arranges that by trace particle playpipe (20) and three pairs of bluff bodies firing chamber experimental piece (1) is connected; Described laser generator (38) links to each other with synchronizer (42) by signal wire, and described PIV camera lens (41) links to each other with synchronizer (42) by signal wire, and described synchronizer (42) is by signal wire and desktop computer a(43) be connected; Described laser generator (38) is connected with light-conducting arm (39), and light-conducting arm (39) is connected with Laser emission camera lens (40);
Described trace displaying particle generator (37) links to each other with flexible pipe with trace particle playpipe (20), trace particle playpipe (20) links to each other with trace particle playpipe jack (14) on the front side board (3), is used for arranging firing chamber experimental pieces (1) release trace particle to three pairs of bluff bodies;
Described pressure reduction and environment temperature test macro (44) comprise direct supply (45), data collecting instrument (46), differential pressure pickup a(47), differential pressure pickup b(48), differential pressure pickup c(49), differential pressure pickup d(50), thermopair (51), inlet velocity probe (52), velocity of discharge probe (53) and desktop computer b(54); Described direct supply (45) is connected with data collecting instrument (46) by electric wire, described inlet velocity probe (52) by flexible rubber hose respectively with differential pressure pickup a(47) be connected with differential pressure pickup c(49 and be connected; Described velocity of discharge probe (53) by flexible rubber hose respectively with differential pressure pickup b(48) be connected with differential pressure pickup d(50 and be connected, simultaneously also with differential pressure pickup c(49) be connected; Described thermopair (51) places environment, described differential pressure pickup a(47), differential pressure pickup b(48), differential pressure pickup c(49), differential pressure pickup d(50) be connected 51 with thermopair) all be connected with data collecting instrument (46) by signal wire; Data collecting instrument (46) and desktop computer b(54) be connected by signal wire.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524960.9A CN103017999B (en) | 2012-12-07 | 2012-12-07 | Flow field characteristic experiment device of combustion chamber of hydrogen-burning gas turbine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210524960.9A CN103017999B (en) | 2012-12-07 | 2012-12-07 | Flow field characteristic experiment device of combustion chamber of hydrogen-burning gas turbine |
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| CN103017999A true CN103017999A (en) | 2013-04-03 |
| CN103017999B CN103017999B (en) | 2015-02-25 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN103712774B (en) * | 2014-01-15 | 2016-03-02 | 大连海事大学 | Low turbulent burner Study of Flow Characteristics experimental provision |
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| CN104764609A (en) * | 2015-04-03 | 2015-07-08 | 西北工业大学 | Comprehensive optical measurement platform of aero-engine main combustion chamber |
| CN104865263A (en) * | 2015-05-20 | 2015-08-26 | 中国重型机械研究院股份公司 | Three-dimensional data acquisition device for flow field |
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| CN110333237A (en) * | 2019-06-26 | 2019-10-15 | 杭州电子科技大学 | Gas motion simulation and optical analysis experimental rig and method in a kind of precombustion chamber |
| CN110333237B (en) * | 2019-06-26 | 2021-06-29 | 杭州电子科技大学 | Gas motion simulation and optical analysis test device and method in precombustion chamber |
| CN110411706B (en) * | 2019-07-01 | 2020-09-01 | 天津大学 | Device for optical measurement and calibration of near-wall flow field at top of combustion chamber of internal combustion engine |
| CN110411706A (en) * | 2019-07-01 | 2019-11-05 | 天津大学 | Device for optical measurement calibration in wall flow field close at the top of combustion chambers of internal combustion engines |
| CN113340602A (en) * | 2021-07-06 | 2021-09-03 | 天津大学 | Visual variable capacitance bomb device and method capable of realizing multi-directional observation |
| CN114243403A (en) * | 2021-12-13 | 2022-03-25 | 中国船舶重工集团公司第七0三研究所 | Variable-diameter lead device for gas turbine hollow wheel disc rotation test |
| CN114243403B (en) * | 2021-12-13 | 2024-04-02 | 中国船舶重工集团公司第七0三研究所 | Variable diameter lead device for rotation test of hollow wheel disc of gas turbine |
| CN116499695A (en) * | 2023-06-25 | 2023-07-28 | 中国空气动力研究与发展中心低速空气动力研究所 | Airplane wake field wind tunnel measurement device and method |
| CN116499695B (en) * | 2023-06-25 | 2023-09-05 | 中国空气动力研究与发展中心低速空气动力研究所 | Airplane wake field wind tunnel measurement device and method |
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