CN106017852A - Parallel wind tunnel extruding air supply system - Google Patents
Parallel wind tunnel extruding air supply system Download PDFInfo
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- CN106017852A CN106017852A CN201610326250.3A CN201610326250A CN106017852A CN 106017852 A CN106017852 A CN 106017852A CN 201610326250 A CN201610326250 A CN 201610326250A CN 106017852 A CN106017852 A CN 106017852A
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- gas
- extruding
- valve
- parallel
- air supply
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a parallel wind tunnel extruding air supply system, and belongs to the technical field of pulse combustion wind tunnels. The system employs a mutual parallel structure of two or more extruding air supply devices on the basis that the structure size of a conventional extruding air supply device is not changed, can solve a technical problem of increasing the total weight of supplied air in a unit time (when two or more extruding air supply devices work the same time), and can solve a technical problem of increasing the total weight of supplied air under a constant air supply flow through extending the air supply time (when two or more extruding air supply devices work sequentially). Moreover, the system is high in reliability, is convenient to operate, and is low in maintenance cost.
Description
Technical field
The invention belongs to pulse-combustion Wind Tunnel Technique field, be particularly used for the extruding feeder of pulse-combustion wind-tunnel.
Background technology
Pulse-combustion wind-tunnel is widely used in the hypersonic research field of air suction type, have construction cheap with operating cost, system is simple
The advantage such as single, easy to maintenance, the construction period is short.Extruding feeder is one of key device realizing pulse-combustion wind-tunnel, main
The quantitative constant voltage supply of the special gases such as oxygen to be used for, hydrogen, methane, has that response is fast, how many with how many just supplies, examination
Without distinguishing features such as residual gas after testing.
Existing extruding feeder is a kind of double-piston pressurizing unit, and its structure is as it is shown in figure 1, include little cylinder 2, air
Cylinder 8, valve piston 3, big piston 7, valve piston 3 is arranged in little cylinder 2, and big piston 7 is arranged in big cylinder 8, little work
Plug 3 uses connecting rod 4 to be connected with big piston 7, forms damping sap cavity 6 and by damping hole 5 and fluid damping between big valve piston
Source is connected, and valve piston 3 little cylinder 2 above and the source of the gas that works special gases such as () oxygen, hydrogen, methane are connected, big piston
Following big cylinder 8 be connected with compensation current work time, open valve downstream, compensate gas push size piston upwards,
Thus the working gas in little cylinder 2 is extruded steam line such as and realizes supply, after piston movement to top, supply terminates.
Extruding feeder supply gross mass is multiplied by service life equal to gas supply flow, as increased supply gross mass, for air-flow
Measure constant in the case of, need extend service life；Or in the case of service life is constant, increases gas supply flow, generally does
Method is to increase the volume of little cylinder, i.e. increases diameter or the length of little cylinder, the most also needs to increase diameter or the length of intensifying cylinder,
Owing to the working gas of extruding feeder is the special gases such as the oxygen of high pressure, hydrogen, methane, the extruding of the program is used to supply
Device of air be accomplished by bigger physical dimension.But, increase the physical dimension of extruding feeder on the one hand due to piston and gas
The fit-up gap control requirement of cylinder is higher makes process for machining and manufacturing difficulty substantially increase, and on the other hand can cause whole extruding supply
Plant running reliability decrease, operation and maintenance cost rise.
Summary of the invention
The present invention provides one wind-tunnel in parallel extruding air supply system, and this parallel connection wind-tunnel extruding air supply system is not changing existing extruding confession
On the basis of device of air physical dimension, use two or more extruding feeder structure parallel with one another, list can be solved
The technical problem (two or more extruding feeders work simultaneously) of supply gross mass is increased in bit time, it is also possible to
The technical problem solving to increase under constant flow supply gross mass by extending service life is (two or more crowded
Pressure feeder sequential working)；And it is high to have reliability, the feature that easy to operate and maintenance cost is low.
Technical solution of the present invention is as follows:
A kind of wind-tunnel extruding air supply system in parallel, as in figure 2 it is shown, include two or more extruding feeder, described two
Individual or plural extruding feeder is parallel with one another, use system after two or more extruding feeders are parallel with one another
The work source of the gas of one provides working gas, uses unified compensation current to provide and compensates gas.
In technique scheme, single extruding feeder includes little cylinder 2, big cylinder 8, valve piston 3, big piston 7, little work
Plug 3 is arranged in little cylinder 2, and big piston 7 is arranged in big cylinder 8, and valve piston 3 uses connecting rod 4 to be connected with big piston 7, and size is lived
Form damping sap cavity 6 between plug and be connected with fluid damping source by damping hole 5, valve piston 3 little cylinder 2 above and work source of the gas
Being connected, the big cylinder 8 below big piston is connected with compensation current.
Further, said two or plural extruding feeder, its physical dimension can be identical, it is also possible to different.
Further, said two or plural extruding feeder concrete on-link mode (OLM) parallel with one another are: each extruding
The little cylinder 2 of feeder is connected with supply collecting pipe 11 by respective supply branch road 1, the big cylinder 8 of each extruding feeder
It is connected with compensating gas collecting pipe 15 by respective compensation gas branch road 9；Supply collecting pipe 11 1 aspect is by supply main valve 12 and wind-tunnel
Gas equipment is connected, and is on the other hand connected with work source of the gas by working gas charge valve 13；Compensate gas collecting pipe 15 1 aspect to lead to
Overcompensation gas supply valve 16 is connected with compensation current, is on the other hand connected with air by compensation gas vent valve 17.
The wind-tunnel in parallel extruding air supply system that the present invention provides, its work process can be described as follows:
1. close supply main valve 12 and compensate gas supply valve 16, opening compensation gas vent valve 17, open working gas charge valve 13,
It is filled with working gas to little cylinder 2, makes big valve piston move to bottom (initial position) together simultaneously, after having inflated, close work
Make gas inflated valve 13；
2. close and compensate gas vent valve 17, open compensation gas supply valve 16, make compensation current be connected with big cylinder；
3. during work, open supply main valve 12, start to supply to gas equipment, compensate gas and promote piston movement, make little cylinder supply
Atmospheric pressure keeps constant, and during piston movement to top, supply terminates；
4. after end-of-job, close supply main valve 12 and compensate gas supply valve 16, opening compensation gas vent valve 17, by big cylinder gas
Body is vented.
The wind-tunnel in parallel extruding air supply system that the present invention provides, on the basis of not changing existing extruding feeder physical dimension,
Use two or more extruding feeder structure parallel with one another, in the unit interval can be solved, increase supply gross mass
Technical problem (two or more extruding feeders work simultaneously), it is also possible to solve under constant flow by prolonging
Long service life increases the technical problem (two or more extruding feeder sequential working) of supply gross mass.Whole
Individual wind-tunnel extruding air supply system in parallel, owing to need not change existing extruding feeder physical dimension, therefore has reliability high, behaviour
Make convenient and that maintenance cost is low feature.
Accompanying drawing explanation
Fig. 1 is existing extruding feeder structural representation.
Fig. 2 is the wind-tunnel in parallel extruding air supply system structural representation that the present invention provides.
Description of symbols in figure: 1 is supply branch road, and 2 is little cylinder, and 3 is valve piston, and 4 is connecting rod, and 5 is damping hole, 6 is resistance
Buddhist nun's sap cavity, 7 is big piston, and 8 is big cylinder, and 9 is to compensate gas branch road, and 11 is supply collecting pipe, and 12 is supply main valve, 13
Being working gas charge valve, 15 is to compensate gas collecting pipe, and 16 is to compensate gas supply valve, and 17 is to compensate gas vent valve.
Detailed description of the invention
A kind of wind-tunnel extruding air supply system in parallel, as in figure 2 it is shown, include two or more extruding feeder, described two
Individual or plural extruding feeder is parallel with one another, use system after two or more extruding feeders are parallel with one another
The work source of the gas of one provides working gas, uses unified compensation current to provide and compensates gas.
In technique scheme, single extruding feeder includes little cylinder 2, big cylinder 8, valve piston 3, big piston 7, little work
Plug 3 is arranged in little cylinder 2, and big piston 7 is arranged in big cylinder 8, and valve piston 3 uses connecting rod 4 to be connected with big piston 7, and size is lived
Form damping sap cavity 6 between plug and be connected with fluid damping source by damping hole 5, valve piston 3 little cylinder 2 above and work source of the gas
Being connected, the big cylinder 8 below big piston is connected with compensation current.
Further, said two or plural extruding feeder, its physical dimension can be identical, it is also possible to different.
Further, said two or plural extruding feeder concrete on-link mode (OLM) parallel with one another are: each extruding
The little cylinder 2 of feeder is connected with supply collecting pipe 11 by respective supply branch road 1, the big cylinder 8 of each extruding feeder
It is connected with compensating gas collecting pipe 15 by respective compensation gas branch road 9；Supply collecting pipe 11 1 aspect is by supply main valve 12 and wind-tunnel
Gas equipment is connected, and is on the other hand connected with work source of the gas by working gas charge valve 13；Compensate gas collecting pipe 15 1 aspect to lead to
Overcompensation gas supply valve 16 is connected with compensation current, is on the other hand connected with air by compensation gas vent valve 17.
The wind-tunnel in parallel extruding air supply system that the present invention provides, its work process can be described as follows:
1. close supply main valve 12 and compensate gas supply valve 16, opening compensation gas vent valve 17, open working gas charge valve 13,
It is filled with working gas to little cylinder 2, makes big valve piston move to bottom (initial position) together simultaneously, after having inflated, close work
Make gas inflated valve 13；
2. close and compensate gas vent valve 17, open compensation gas supply valve 16, make compensation current be connected with big cylinder；
3. during work, open supply main valve 12, start to supply to gas equipment, compensate gas and promote piston movement, make little cylinder supply
Atmospheric pressure keeps constant, and during piston movement to top, supply terminates；
4. after end-of-job, close supply main valve 12 and compensate gas supply valve 16, opening compensation gas vent valve 17, by big cylinder gas
Body is vented.
The wind-tunnel in parallel extruding air supply system that the present invention provides, on the basis of not changing existing extruding feeder physical dimension,
Use two or more extruding feeder structure parallel with one another, in the unit interval can be solved, increase supply gross mass
Technical problem (two or more extruding feeders work simultaneously), it is also possible to solve under constant flow by prolonging
Long service life increases the technical problem (two or more extruding feeder sequential working) of supply gross mass.Whole
Individual wind-tunnel extruding air supply system in parallel, owing to need not change existing extruding feeder physical dimension, therefore has reliability high, behaviour
Make convenient and that maintenance cost is low feature.
Claims (6)
1. a wind-tunnel in parallel extruding air supply system, including two or more extruding feeders, said two or two
Above extruding feeder is parallel with one another, uses unified work after two or more extruding feeders are parallel with one another
Source of the gas provides working gas, uses unified compensation current to provide and compensates gas.
Wind-tunnel extruding air supply system in parallel the most according to claim 1, it is characterised in that single extruding feeder includes little
Cylinder (2), big cylinder (8), valve piston (3), big piston (7), valve piston (3) is arranged in little cylinder (2), greatly
Piston (7) is arranged in big cylinder (8), and valve piston (3) uses connecting rod (4) to be connected with big piston (7), big valve piston
Between form damping sap cavity (6) and be connected with fluid damping source by damping hole (5), valve piston (3) little cylinder (2) above
Being connected with work source of the gas, the big cylinder (8) below big piston is connected with compensation current.
Wind-tunnel extruding air supply system in parallel the most according to claim 1 and 2, it is characterised in that said two or two with
On extruding feeder physical dimension identical.
Wind-tunnel extruding air supply system in parallel the most according to claim 1 and 2, it is characterised in that said two or two with
On the physical dimension of extruding feeder different.
Wind-tunnel extruding air supply system in parallel the most according to claim 3, it is characterised in that said two or plural
The concrete on-link mode (OLM) extruding feeder parallel with one another is: the little cylinder (2) of each extruding feeder passes through respective supply
Branch road (1) is connected with supply collecting pipe (11), and the big cylinder (8) of each extruding feeder is propped up by respective compensation gas
Road (9) is connected with compensating gas collecting pipe (15)；Supply collecting pipe (11) is on the one hand used with wind-tunnel by supply main valve (12)
Gas equipment is connected, and is on the other hand connected with work source of the gas by working gas charge valve (13)；Compensate gas collecting pipe (15)
Aspect is connected with compensation current by compensating gas supply valve (16), on the other hand by compensating gas vent valve (17) and big gas phase
Even.
Wind-tunnel extruding air supply system in parallel the most according to claim 4, it is characterised in that said two or plural
The concrete on-link mode (OLM) extruding feeder parallel with one another is: the little cylinder (2) of each extruding feeder passes through respective supply
Branch road (1) is connected with supply collecting pipe (11), and the big cylinder (8) of each extruding feeder is propped up by respective compensation gas
Road (9) is connected with compensating gas collecting pipe (15)；Supply collecting pipe (11) is on the one hand used with wind-tunnel by supply main valve (12)
Gas equipment is connected, and is on the other hand connected with work source of the gas by working gas charge valve (13)；Compensate gas collecting pipe (15)
Aspect is connected with compensation current by compensating gas supply valve (16), on the other hand by compensating gas vent valve (17) and big gas phase
Even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326250.3A CN106017852A (en) | 2016-05-17 | 2016-05-17 | Parallel wind tunnel extruding air supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326250.3A CN106017852A (en) | 2016-05-17 | 2016-05-17 | Parallel wind tunnel extruding air supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106017852A true CN106017852A (en) | 2016-10-12 |
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ID=57098374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610326250.3A Pending CN106017852A (en) | 2016-05-17 | 2016-05-17 | Parallel wind tunnel extruding air supply system |
Country Status (1)
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| CN (1) | CN106017852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525379A (en) * | 2016-11-14 | 2017-03-22 | 北京航天长征飞行器研究所 | Air exhausting device and method employed by two sets of high-temperature supersonic wind tunnels jointly |
| CN112985741A (en) * | 2021-02-07 | 2021-06-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Piston type wind tunnel special gas inflation method utilizing compressed air power |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07260620A (en) * | 1994-03-28 | 1995-10-13 | Mitsubishi Heavy Ind Ltd | Impact wind tunnel |
| CN102252001A (en) * | 2011-08-22 | 2011-11-23 | 康向一 | Air cylinder using hydraulic drive |
| CN203011497U (en) * | 2013-01-15 | 2013-06-19 | 中国计量学院 | Multi-piston array type gas flow calibration device |
| CN104196820A (en) * | 2014-09-09 | 2014-12-10 | 余理翔 | Energy-saving combined air cylinder |
| CN104748937A (en) * | 2013-12-26 | 2015-07-01 | 中国辐射防护研究院 | Power plant cooling tower thermal plume emission simulation device in environmental wind tunnel |
-
2016
- 2016-05-17 CN CN201610326250.3A patent/CN106017852A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07260620A (en) * | 1994-03-28 | 1995-10-13 | Mitsubishi Heavy Ind Ltd | Impact wind tunnel |
| CN102252001A (en) * | 2011-08-22 | 2011-11-23 | 康向一 | Air cylinder using hydraulic drive |
| CN203011497U (en) * | 2013-01-15 | 2013-06-19 | 中国计量学院 | Multi-piston array type gas flow calibration device |
| CN104748937A (en) * | 2013-12-26 | 2015-07-01 | 中国辐射防护研究院 | Power plant cooling tower thermal plume emission simulation device in environmental wind tunnel |
| CN104196820A (en) * | 2014-09-09 | 2014-12-10 | 余理翔 | Energy-saving combined air cylinder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525379A (en) * | 2016-11-14 | 2017-03-22 | 北京航天长征飞行器研究所 | Air exhausting device and method employed by two sets of high-temperature supersonic wind tunnels jointly |
| CN106525379B (en) * | 2016-11-14 | 2019-01-15 | 北京航天长征飞行器研究所 | A kind of exhaust apparatus and method that two sets of high temperature ultrasonics speed wind-tunnel is shared |
| CN112985741A (en) * | 2021-02-07 | 2021-06-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Piston type wind tunnel special gas inflation method utilizing compressed air power |
| CN112985741B (en) * | 2021-02-07 | 2022-05-10 | 中国空气动力研究与发展中心超高速空气动力研究所 | Piston type wind tunnel special gas inflation method utilizing compressed air power |
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Application publication date: 20161012 |
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| RJ01 | Rejection of invention patent application after publication |