CN208106594U - Gas turbine is constructed with adjustable pneumatic jet pipe - Google Patents
Gas turbine is constructed with adjustable pneumatic jet pipe Download PDFInfo
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- CN208106594U CN208106594U CN201820625156.2U CN201820625156U CN208106594U CN 208106594 U CN208106594 U CN 208106594U CN 201820625156 U CN201820625156 U CN 201820625156U CN 208106594 U CN208106594 U CN 208106594U
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- jet pipe
- drainage channel
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Abstract
The utility model discloses a kind of adjustable pneumatic jet pipes of gas turbine to construct, including being set to the mainstream channel outside combustion chamber and turbine being used to pass through for combustion gas, the mainstream channel inlet end is connected to compressor, mainstream channel outlet side is connected to jet pipe, it further include the drainage channel being set to outside mainstream channel, the drainage channel inlet end is connected to compressor, drainage channel outlet side is connected to jet pipe, shut-off valve is provided in the drainage channel, flow controller, for making eluting gas in drainage channel form gas wall surface in jet pipe to reduce the regulating mechanism of jet pipe flow area.The utility model can be such that combustion gas expands completely as far as possible, to improve motor power using the adjusting of the air control jet pipe area of compressor itself compression to adapt to different work operating conditions.
Description
Technical field
The utility model relates to field of aerospace technology, in particular to the adjustable pneumatic jet pipe structure of a kind of gas turbine
It makes.
Background technique
Minilab gas turbine is a kind of device for teaching experiment, and the purpose is to demonstrate the specific work of gas turbine
Make process.Existing minilab gas turbine generallys use cylindric straight-through jet pipe, according to continuity equation and Bernoulli Jacob side
When Cheng Kezhi gas is by the straight-through jet pipe, under the premise of not considering loss, speed can't change with pressure, and set
The purpose for setting straight-through jet pipe is then to obtain higher thrust to improve gas velocity, it is clear that straight-through tail in the prior art
Jet pipe is difficult to realize this purpose.
Therefore, it is badly in need of providing a kind of adjusting that can control jet pipe area using the air of compressor itself compression, with suitable
Different work operating conditions is answered, expands combustion gas completely as far as possible, to improve the gas turbine of motor power with adjustable pneumatic
Jet pipe construction.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of adjustable pneumatic jet pipes of gas turbine to construct, it can benefit
The adjusting of the air control jet pipe area compressed with compressor itself makes combustion gas as far as possible to adapt to different work operating conditions
Expansion completely, to improve motor power.
The gas turbine of the utility model is constructed with adjustable pneumatic jet pipe, including is set to outside combustion chamber and turbine and is used to supply
The mainstream channel that combustion gas passes through, the mainstream channel inlet end are connected to compressor, and mainstream channel outlet side is connected to jet pipe,
It further include the drainage channel being set to outside mainstream channel, the drainage channel inlet end is connected to compressor, drainage channel outlet
End is connected to jet pipe, shut-off valve, flow controller is provided in the drainage channel, for making in drainage channel eluting gas in tail
Gas wall surface is formed in jet pipe to reduce the regulating mechanism of jet pipe flow area.
Further, the shut-off valve is located at drainage channel at inlet end, and the regulating mechanism goes out positioned at drainage channel
At gas end, the flow controller is between shut-off valve and regulating mechanism.
Further, the regulating mechanism includes the adjustment sheet being pivotally arranged on drainage channel inner wall and use
In the elastic supporting member for supporting optical member for controlling to adjust angle between piece and drainage channel inner wall.
Further, described adjustment sheet one end is hinged by hinge and drainage channel inner wall, the both ends of the elastic supporting member for supporting optical member
It is individually fixed on adjustment sheet and drainage channel inner wall.
Further, the adjustment sheet is located at drainage channel on the side inner wall of mainstream channel.
Further, the adjustment sheet is flexible adjustment piece.
Further, the elastic supporting member for supporting optical member is spring.
Further, the drainage channel at least two, each drainage channel are uniformly arranged along mainstream channel circumferencial direction.
The beneficial effects of the utility model：The gas turbine of the utility model is constructed with adjustable pneumatic jet pipe, passes through setting
Drainage channel, and in drainage channel be arranged shut-off valve, flow controller, for making eluting gas shape in jet pipe in drainage channel
The regulating mechanism that jet pipe flow area is reduced at gas wall surface makes the mainstream for flowing into jet pipe through turbine in mainstream channel exist
Under the action of gas wall surface, jet pipe is flowed out along the jet pipe runner of diminution, speed increases, and thrust obtains gain；And it drains
Secondary gas flow in channel is not necessarily to other gas sources, structure is simple, improves resource utilization quoted from compressor.Therefore, this is practical
The adjusting of the novel air control jet pipe area using compressor itself compression makes to fire to adapt to different work operating conditions
Gas expands completely as far as possible, to improve motor power.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1：The gas turbine of the present embodiment is constructed with adjustable pneumatic jet pipe, including is set to combustion chamber 8 and whirlpool
Mainstream channel 11 outside wheel 9 for passing through for combustion gas, 11 inlet end of mainstream channel are connected to compressor 7, mainstream channel 11
Outlet side is connected to jet pipe 10, is dominated in channel by compressor 7 to inflow after gas boosting, and followed by mainstream channel
Interior combustion chamber and turbine, the high-temperature high-pressure fuel gas flowed out from turbine continue to expand and be discharged backward in jet pipe, make to send out
Motivation obtains thrust；It further include the drainage channel 1 being set to outside mainstream channel 11,1 inlet end of drainage channel and compressor 7
Connection, 1 outlet side of drainage channel is connected to jet pipe 10, shut-off valve 2 is provided in the drainage channel 1, flow controller 3, is used for
Eluting gas in drainage channel 1 is set to form gas wall surface in jet pipe 10 to reduce the adjusting machine of 10 flow area of jet pipe
Structure makes the mainstream through the inflow jet pipe 10 of turbine 9 in mainstream channel 11 under the action of gas wall surface, along the jet pipe of diminution
10 runners flow out jet pipe 10, and speed increases, and thrust obtains gain；And the secondary gas flow in drainage channel 1 is quoted from compressor 7,
Without other gas sources, structure is simple, improves resource utilization.The air inlet pipe of drainage channel 1 and outlet side are equal in the present embodiment
For inclined surface.
In the present embodiment, the shut-off valve 2 is located at drainage channel 1 at inlet end, for controlling drainage channel gas circuit
Opening and closing；The regulating mechanism is located at 1 outlet side of drainage channel, for making in drainage channel 1 eluting gas in jet pipe 10
Interior formation gas wall surface realizes the adjusting of jet pipe area to reduce 10 flow area of jet pipe；The flow controller 3 is located at cut-off
Between valve 2 and regulating mechanism, the gas flow of jet pipe is flowed into for controlling drainage channel.
In the present embodiment, the regulating mechanism includes the adjusting being pivotally arranged on 1 inner wall of drainage channel
Piece 6 and elastic supporting member for supporting optical member 5 for controlling to adjust angle between 1 inner wall of piece 6 and drainage channel pass through adjustment sheet 6 and elasticity branch
Support member 5 cooperates, and eluting gas in drainage channel 1 is made to form gas wall surface in jet pipe 10 to reduce 10 runner of jet pipe
Area realizes the adjusting of jet pipe area, reduces area needed for controlling according to corner dimension, to adapt to different work operating conditions,
Expand combustion gas completely as far as possible, to improve motor power.
In the present embodiment, described 6 one end of adjustment sheet is hinged by hinge 4 and 1 inner wall of drainage channel, the elastic supporting member for supporting optical member
5 both ends are individually fixed on adjustment sheet 6 and 1 inner wall of drainage channel, realize angle between adjustment sheet 6 and 1 inner wall of drainage channel
It is adjustable, change the direction that gas flows into jet pipe in drainage channel by the change of 6 angle of adjustment sheet.
In the present embodiment, the adjustment sheet 6 is located at drainage channel 1 on the side inner wall of mainstream channel 11, more sharp
In the formation of gas wall surface.
In the present embodiment, the adjustment sheet 6 be flexible adjustment piece, make gas when flowing through adjustment sheet 6, can carry out buffering and
Transition is more favorable for spraying gas to jet pipe.
In the present embodiment, the elastic supporting member for supporting optical member 5 is spring, and structure is simple, manufacture easy to process, at low cost.
In the present embodiment, the drainage channel 1 at least two, each drainage channel 1 is equal along 11 circumferencial direction of mainstream channel
Cloth setting, to improve gas velocity, obtains higher thrust；The drainage channel 1 of the present embodiment is four, guarantees to maximize and improve
Gas flow rates, to form stable gas wall surface.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (8)
1. a kind of gas turbine is constructed with adjustable pneumatic jet pipe, it is used to pass through for combustion gas outside combustion chamber and turbine including being set to
Mainstream channel, the mainstream channel inlet end are connected to compressor, and mainstream channel outlet side is connected to jet pipe, and feature exists
In：It further include the drainage channel being set to outside mainstream channel, the drainage channel inlet end is connected to compressor, and drainage channel goes out
Gas end is connected to jet pipe, shut-off valve, flow controller is provided in the drainage channel, for making eluting gas in drainage channel exist
Gas wall surface is formed in jet pipe to reduce the regulating mechanism of jet pipe flow area.
2. gas turbine according to claim 1 is constructed with adjustable pneumatic jet pipe, it is characterised in that：The shut-off valve is located at
At inlet end, the regulating mechanism is located at drainage channel outlet side drainage channel, the flow controller be located at shut-off valve with
Between regulating mechanism.
3. gas turbine according to claim 2 is constructed with adjustable pneumatic jet pipe, it is characterised in that：The regulating mechanism packet
Include the adjustment sheet being pivotally arranged on drainage channel inner wall and for control to adjust piece and drainage channel inner wall it
Between angle elastic supporting member for supporting optical member.
4. gas turbine according to claim 3 is constructed with adjustable pneumatic jet pipe, it is characterised in that：Described adjustment sheet one end
Hinged by hinge and drainage channel inner wall, the both ends of the elastic supporting member for supporting optical member are individually fixed in adjustment sheet and drainage channel inner wall
On.
5. gas turbine according to claim 4 is constructed with adjustable pneumatic jet pipe, it is characterised in that：The adjustment sheet is located at
Drainage channel is on the side inner wall of mainstream channel.
6. gas turbine according to claim 5 is constructed with adjustable pneumatic jet pipe, it is characterised in that：The adjustment sheet is bullet
Property adjustment sheet.
7. gas turbine according to claim 4 is constructed with adjustable pneumatic jet pipe, it is characterised in that：The elastic supporting member for supporting optical member
For spring.
8. gas turbine according to claim 1 is constructed with adjustable pneumatic jet pipe, it is characterised in that：The drainage channel is extremely
It is less two, each drainage channel is uniformly arranged along mainstream channel circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625156.2U CN208106594U (en) | 2018-04-27 | 2018-04-27 | Gas turbine is constructed with adjustable pneumatic jet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625156.2U CN208106594U (en) | 2018-04-27 | 2018-04-27 | Gas turbine is constructed with adjustable pneumatic jet pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208106594U true CN208106594U (en) | 2018-11-16 |
Family
ID=64113701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820625156.2U Expired - Fee Related CN208106594U (en) | 2018-04-27 | 2018-04-27 | Gas turbine is constructed with adjustable pneumatic jet pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208106594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159454A (en) * | 2019-06-17 | 2019-08-23 | 西安航空学院 | Ducted rocket adjustable jet |
| CN112845077A (en) * | 2020-12-31 | 2021-05-28 | 昌群精细工业（宜昌）有限公司 | Powder material screening plant |
-
2018
- 2018-04-27 CN CN201820625156.2U patent/CN208106594U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159454A (en) * | 2019-06-17 | 2019-08-23 | 西安航空学院 | Ducted rocket adjustable jet |
| CN110159454B (en) * | 2019-06-17 | 2023-11-24 | 西安航空学院 | Adjustable jet pipe of solid flushing engine |
| CN112845077A (en) * | 2020-12-31 | 2021-05-28 | 昌群精细工业（宜昌）有限公司 | Powder material screening plant |
| CN112845077B (en) * | 2020-12-31 | 2022-11-15 | 昌群精细工业（宜昌）有限公司 | Powder material screening plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20190427 |