CN206175295U - For continuous wind tunnel fan turbine axle head composite seal structure - Google Patents
For continuous wind tunnel fan turbine axle head composite seal structure Download PDFInfo
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- CN206175295U CN206175295U CN201621258409.4U CN201621258409U CN206175295U CN 206175295 U CN206175295 U CN 206175295U CN 201621258409 U CN201621258409 U CN 201621258409U CN 206175295 U CN206175295 U CN 206175295U
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- sealing device
- sealing
- casing
- wind tunnel
- continuous wind
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Abstract
The utility model provides a for continuous wind tunnel fan turbine axle head composite seal structure, includes rotor, a sealing device, the 2nd sealing device, casing and slide bearing, the casing on be equipped with the seal groove, a sealing device and the 2nd sealing device install in the seal groove, the seal structure department of casing and rotor is equipped with a sealing device and the 2nd sealing device, the utility model discloses can utilize external dry clean air supply to fill into the small clearance that the side tooth is sealed and the rotor forms within a definite time, effectively ensure bearing oil zero leakage air inlet hole runner, simultaneously, through adjusting the sealed requirement that air supply pressure can satisfy different pressure range such as wind -tunnel pressure boost, ordinary pressure, vacuum, other occasions strict to lubricating oil leakage still can be applied to to this device.
Description
Technical field
The utility model is related to a kind of combination sealing, and in particular to a kind of continuous wind tunnel Feng Ji turbines shaft end group
Close sealing structure.
Background technology
Wind tunnel test, as the widely used method of aerodynamic studies, is the fields such as Aeronautics and Astronautics, railway transportation
Development provides necessary guarantee.The key equipment for driving blower fan/turbine to be continuous wind tunnel, is limited to the knot of continuous wind tunnel
Configuration formula, drives blower fan/turbine to need to be arranged in wind-tunnel runner, and needs to be arranged in outside wind-tunnel motor prime movers more,
Shaft coupling is needed through wind tunnel body.To meet test needs, wind tunnel test operating mode in part is needed in normal pressure, negative pressure, supercharging bar
Run under part, to guarantee that test is normally carried out, the effect of blower fan/turbine shaft end seal not only needs to prevent bearing oil zero
In the runner of leakage intake hole, and the air for avoiding the external world from not meeting the requirements such as wind tunnel test dew point, cleanliness factor is needed to enter inlet air
In the runner of hole.Rationally, effectively continuous formula wind-tunnel blower fan/turbine shaft end combined seal design is wind-tunnel blower fan/turbine
One of key components of machine design.
The content of the invention
In order to solve the above problems, the utility model provides a kind of continuous wind tunnel and is combined with Feng Ji turbines shaft end
Sealing structure.
What the purpose of this utility model was realized in：A kind of continuous wind tunnel Feng Ji turbine shaft end combined seals
Structure, including rotor, first sealing device, the second sealing device, casing and sliding bearing, described casing is provided with sealing
Groove, first sealing device and the second sealing device are arranged in seal groove, are provided with first at casing and the sealing structure of rotor close
Seal apparatus and the second sealing device.
The utility model also has following technical characteristic：
1st, first sealing device as above at least two.
2nd, it is provided with exhaust outlet between first sealing device as above and the second sealing device.
3rd, the casing between two first sealing devices as above is provided with air-filled pore.
4th, the casing at the second sealing device as above is provided with air-filled pore.
5th, it is provided with sealing gasket between the second sealing device as above and casing.
6th, first sealing device as above and the second sealing device are using the adjustable straight-tooth sealing or multiple high in the back side
Low tooth diaphragm seal.
Effect of the present utility model and benefit are：It is filled between side tooth sealing and rotor using extraneous dried and clean source of the gas and is formed
Minim gap, effectively guarantee that wind-tunnel runner is entered in bearing oil zero leakage；Meanwhile, can meet wind by adjusting bleed pressure
The seal request of the different pressures scopes such as hole supercharging, normal pressure, vacuum, this device applies also for other to oil leak requirement
Strict occasion.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is enlarged drawing at the I of Fig. 1.
Fig. 3 is enlarged drawing at the II of Fig. 1.
Specific embodiment
The utility model is further explained below according to Figure of description citing：
Embodiment 1
With reference to shown in Fig. 1-3, a kind of continuous wind tunnel Feng Ji turbines shaft end combined sealing structure, including rotor 1,
First sealing device 2, the second sealing device 3, casing 4 and sliding bearing 5, described casing 4 is provided with seal groove, the first sealing
The sealing device 3 of device 2 and second is arranged in seal groove, and at casing 4 and the sealing structure of rotor 1 first sealing device 2 is provided with
With the second sealing device 3.
First sealing device 2 described in the present embodiment is three.
Exhaust outlet 8 is provided between the sealing device 3 of first sealing device 2 and second described in the present embodiment.
The casing 4 between two first sealing devices 2 described in the present embodiment is provided with air-filled pore 7.
The casing 4 at the second sealing device 3 described in the present embodiment is provided with air-filled pore 7.
Sealing gasket 6 is provided between the second sealing device 3 and casing 4 described in the present embodiment.
The sealing device 3 of first sealing device 2 and second described in the present embodiment using the adjustable straight-tooth sealing in the back side or
Multiple stage teeth diaphragm seals.
The utility model is operationally：The clean gas of certain pressure is persistently filled with to inflation inlet 7 using extraneous clean gas source
Body, flows in the gap that the gas is formed between the sealing device 3 of first sealing device 2 and second and rotor 1, effectively separates
Lubricating oil area and wind-tunnel runner, it can be ensured that lubricating oil zero leakage is entered in wind-tunnel runner, it is ensured that the experimental enviroment of wind-tunnel.By closing
The quantity of reason design wind-tunnel flow passage side first sealing device 2, it can be ensured that the gas being filled with by inflation inlet 7 is most of by exhaust outlet
8 discharge, and partial gas enter wind-tunnel runner；The gas being filled with by inflation inlet 7, is partially into bearing housing and enters oil by oil return opening
Stand, partly discharged by exhaust outlet 8.To maintain pressure stability in wind-tunnel, the vacuum system that certain capacity is set is needed；Meanwhile, oil
Station needs setting exhaust outlet to guarantee that system oil return is unobstructed.
By monitoring the pressure in wind-tunnel, the pressure being filled with inflation inlet 7 using the extraneous source of the gas of regulating valve adjustment can be fitted
Answer the seal request of wind-tunnel different pressures scope.
Furthermore it is possible to the extraneous gas source component being filled with is changed according to test(ing) medium in wind-tunnel guarantees test working medium in wind-tunnel
Purity etc. is required.
The utility model is utilized and arrange at casing 4 and rotor 1 sealing structure, while using extraneous source of the gas to seal clearance
Interior inflation, can effectively solve the leakage of lubricating oil, and it is safe and reliable to process simple, structure, for oil leak is required
Strict wind-tunnel occasion has great application prospect.Its application can be extended to strict to oil leak requirement
Other industrial applications such as food, medical treatment.
Claims (7)
1. a kind of continuous wind tunnel Feng Ji turbines shaft end combined sealing structure, including rotor (1), first sealing device
(2), the second sealing device (3), casing (4) and sliding bearing (5), it is characterised in that：Described casing (4) is provided with sealing
Groove, first sealing device (2) and the second sealing device (3) in seal groove, the sealing structure of casing (4) and rotor (1)
Place is provided with first sealing device (2) and the second sealing device (3).
2. a kind of continuous wind tunnel according to claim 1 Feng Ji turbines shaft end combined sealing structure, its feature exists
In：First sealing device (2) at least two.
3. a kind of continuous wind tunnel according to claim 1 Feng Ji turbines shaft end combined sealing structure, its feature exists
In：Exhaust outlet (8) is provided between first sealing device (2) and the second sealing device (3).
4. a kind of continuous wind tunnel according to claim 1 Feng Ji turbines shaft end combined sealing structure, its feature exists
In：Air-filled pore (7) is provided with casing (4) between two first sealing devices (2).
5. a kind of continuous wind tunnel according to claim 1 Feng Ji turbines shaft end combined sealing structure, its feature exists
In：Air-filled pore (7) is provided with the casing (4) at the second sealing device (3) place.
6. a kind of continuous wind tunnel according to claim 1 Feng Ji turbines shaft end combined sealing structure, its feature exists
In：Sealing gasket (6) is provided between second sealing device (3) and casing (4).
7. a kind of continuous wind tunnel according to claim 1 Feng Ji turbines shaft end combined sealing structure, its feature exists
In：First sealing device (2) and the second sealing device (3) are using the adjustable straight-tooth sealing in the back side or multiple stage teeth diaphragm seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258409.4U CN206175295U (en) | 2016-11-23 | 2016-11-23 | For continuous wind tunnel fan turbine axle head composite seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258409.4U CN206175295U (en) | 2016-11-23 | 2016-11-23 | For continuous wind tunnel fan turbine axle head composite seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175295U true CN206175295U (en) | 2017-05-17 |
Family
ID=58686886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621258409.4U Active CN206175295U (en) | 2016-11-23 | 2016-11-23 | For continuous wind tunnel fan turbine axle head composite seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175295U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086763A (en) * | 2023-03-20 | 2023-05-09 | 中国航空工业集团公司沈阳空气动力研究所 | Large continuous wind tunnel axial flow compressor bearing overhauling method and overhauling device |
| CN116297678A (en) * | 2023-05-23 | 2023-06-23 | 中国空气动力研究与发展中心高速空气动力研究所 | Average dew point measurement method of continuous wind tunnel based on drying system |
-
2016
- 2016-11-23 CN CN201621258409.4U patent/CN206175295U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086763A (en) * | 2023-03-20 | 2023-05-09 | 中国航空工业集团公司沈阳空气动力研究所 | Large continuous wind tunnel axial flow compressor bearing overhauling method and overhauling device |
| CN116086763B (en) * | 2023-03-20 | 2023-06-06 | 中国航空工业集团公司沈阳空气动力研究所 | Large continuous wind tunnel axial flow compressor bearing overhauling method and overhauling device |
| CN116297678A (en) * | 2023-05-23 | 2023-06-23 | 中国空气动力研究与发展中心高速空气动力研究所 | Average dew point measurement method of continuous wind tunnel based on drying system |
| CN116297678B (en) * | 2023-05-23 | 2023-08-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Average dew point measurement method of continuous wind tunnel based on drying system |
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