CN205638579U - Turbine unit fore bearing case watertight fittings - Google Patents
Turbine unit fore bearing case watertight fittings Download PDFInfo
- Publication number
- CN205638579U CN205638579U CN201620486472.7U CN201620486472U CN205638579U CN 205638579 U CN205638579 U CN 205638579U CN 201620486472 U CN201620486472 U CN 201620486472U CN 205638579 U CN205638579 U CN 205638579U
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- CN
- China
- Prior art keywords
- steam turbine
- bearing box
- front bearing
- guide duct
- tight device
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- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a turbine unit fore bearing case watertight fittings belongs to mechanical technical field. The utility model discloses a turbine unit fore bearing case watertight fittings includes steam turbine, rotor, fore bearing case, hydraulic pressure adjustment system, generator and guide duct. The utility model overcomes the water pollution problems that steam turbine steam leak caused the fore bearing case to play certain cooling effect to the fore bearing case, the utility model discloses the during operation wind regime comes from generator itself, does not need volume dominant exterior, the energy saving.
Description
Technical field:
This utility model relates to a kind of Steam Turbine front bearing box water-tight device, belongs to field of mechanical technique.
Background technology:
In Thermal Power Station's production process, Turbo-generator Set is when carrying out operation, and the cylinder of steam turbine is in High Temperature High Pressure
Among environment, usual pressure is up to 5.0MPa, and temperature is up to 480 DEG C, therefore, at the connection bearing of cylinder and rotor, very
Difficulty remains intact sealing under such high temperature and high pressure environment, it may appear that steam leakage situation.
Next-door neighbour's steam leak, is a key position of Turbo-generator Set: front bearing box governing system.This adjustment system is
The control centre of whole Turbo-generator Set, by automatically controlling steam flow, controls the speed of electric generating set rotor, so that
Power generation operation is carried out without any confusion；Having substantial amounts of oil in this bearing housing, this oil is on the one hand for the lubrication of fore bearing, the opposing party
Face is as the hydraulic oil of hydraulic control system.When the steam of leakage sprays to front bearing box constantly, and the water after steam liquefied is easy to
Penetrate into bearing housing by the junction of bearing housing, make the oil in case be contaminated, thus bring hydraulic system malfunctioning, lubrication effect
The really adverse effect such as reduction.
Accordingly, it would be desirable to a kind of effective Steam Turbine front bearing box water-tight device.
Utility model content:
In order to solve the problems referred to above, this utility model provides a kind of Steam Turbine front bearing box water-tight device.
Described Steam Turbine front bearing box water-tight device, including steam turbine, central shaft and bearing, front bearing box, Hydraulic Adjustable Speed system
System, electromotor and guide duct；Front bearing box, steam turbine and electromotor are connected by central shaft and bearing；Hydraulic speed regulation system is installed
On front bearing box；Described steam turbine includes cylinder and turbine blade；Described electromotor includes casing, stator and rotor；Institute
The one end stating guide duct is air inlet end, and air inlet end is connected to electric generator casing, and the other end of guide duct is air opening end, goes out
Air port end alignment steam-turbine leak.
In a kind of embodiment of the present utility model, described steam-turbine leak is at the bearing that cylinder is connected with central shaft,
Or at the bearing that is connected with central shaft of front bearing box.
In a kind of embodiment of the present utility model, described Steam Turbine front bearing box water-tight device, guide duct is diameter
4-6cm, the common tubing such as the stainless steel tube of wall thickness 2-3mm, PVC hard plastic tube, PVC flexible plastic tube.
In a kind of embodiment of the present utility model, described Steam Turbine front bearing box water-tight device, the nearly generator end of guide duct
It is provided with speed-regulating switch, the required wind speed size of steam leakage situation regulation can be regarded.
In a kind of embodiment of the present utility model, described Steam Turbine front bearing box water-tight device, can at guide duct air outlet
To arrange, one or more air outlets are set depending on concrete condition.
In a kind of embodiment of the present utility model, the air opening end of described guide duct arranges 2 air outlets, is respectively aligned to steam
At the bearing that the cylinder of vapour leak is connected with central shaft and at the bearing that is connected with central shaft of front bearing box.
In a kind of embodiment of the present utility model, described guide duct is diameter 5cm, the stainless steel tube guide duct of wall thickness 2mm.
In a kind of embodiment of the present utility model, described rustless steel guide duct pipe is connected with electric generator casing by sealing welding.
In a kind of embodiment of the present utility model, described rustless steel guide duct is provided with tune at electric generator casing 20cm
Speed switch, can select suitable wind speed according to concrete steam leakage situation.
The beneficial effects of the utility model:
(1) in this utility model is implemented, the steam of cylinder leakage is dispelled by guide duct in time, it is to avoid at front bearing box bearing
Liquid accumulation, makes front bearing box avoid by condensed water and is polluted；
(2) for the steam being atomized, the process again gasified under the effect of guide duct wind-force can absorb certain heat,
Play the effect to front bearing box cooling, to avoiding high oil temperature, it is ensured that hydraulic system normally works and serves positive role
(3) wind regime of guide duct comes from the radiator fan in electromotor, it is not necessary to provide special power, saves the energy；
Accompanying drawing illustrates:
Fig. 1: Steam Turbine front bearing box water-tight device structural representation of the present utility model；Wherein, 1 front bearing box, 2 hydraulic pressure are adjusted
Speed system, 3 steam turbines, 4 bearings, 5 electromotors, 6 guide ducts, 7 speed-regulating switch, 8 central shafts.
Detailed description of the invention:
Below in conjunction with the drawings and specific embodiments, this utility model is further elaborated.
Embodiment 1
As it is shown in figure 1, Steam Turbine front bearing box water-tight device described in the utility model, before being connected by central shaft 8
Bearing housing 1, steam turbine 3 and electromotor 5；Connect on front bearing box 1 and have hydraulic speed regulation system 2；Central shaft 8 and steam turbine 3,
Central shaft 8 is connected with bearing 4 respectively with front bearing box 1；Rustless steel guide duct 6 welds with electromotor 5 casing sealing；Wind-guiding
Pipe 6 is provided with speed-regulating switch 7 at electromotor 5 casing 20cm.
The wind regime of described guide duct 6 comes from the radiator fan of electromotor 5, and during device work, guide duct 6 guides wind into steamer
Machine steam 3 steam leak, and draw two air outlets, it is respectively aligned to steamer 3 and the connection bearing 4 of central shaft 8 and front axle
Hold the bearing 4 that case 1 is connected with central shaft 8.
Described guide duct 6 is diameter 5cm, the stainless steel tube of wall thickness 2mm.
Operationally, the radiator fan of electromotor 5 rotates the wind produced, and the steam being guided into steam turbine 3 by guide duct 6 is leaked
Place, and blow to steamer 3 and the connection bearing 4 of central shaft 8 and front bearing box 1 respectively with central shaft 8 even by 2 air outlets
The bearing 4 connect, thus it is prevented effectively from leaked steam in the condensed around liquefaction of front bearing box bearing, it is to avoid bearing housing is by the dirt of water
Dye.
Although this utility model is open the most as above with preferred embodiment, but it is not limited to this utility model, any is familiar with this
The people of technology, without departing from spirit and scope of the present utility model, can do various changes and modification, and therefore this practicality is new
The protection domain of type should be with being as the criterion that claims are defined.
Claims (8)
1. a Steam Turbine front bearing box water-tight device, it is characterised in that described Steam Turbine front bearing box water-tight device includes
Steam turbine, central shaft and bearing, front bearing box, hydraulic speed regulation system, electromotor and guide duct；Front bearing box, steam turbine and
Electromotor is connected by central shaft and bearing；Hydraulic speed regulation system is installed on front bearing box；Described steam turbine includes cylinder and steamer
Machine blade；Described electromotor includes casing, stator and rotor；One end of described guide duct is air inlet end, and air inlet end connects
At electric generator casing, the other end of guide duct is air opening end, air opening end alignment steam-turbine leak.
A kind of Steam Turbine front bearing box water-tight device the most according to claim 1, it is characterised in that described guide duct is
Diameter 4-6cm, the stainless steel tube of wall thickness 2-3mm, PVC hard plastic tube or PVC flexible plastic tube.
A kind of Steam Turbine front bearing box water-tight device the most according to claim 1, it is characterised in that described guide duct is near
Generator end is provided with speed-regulating switch.
A kind of Steam Turbine front bearing box water-tight device the most according to claim 1, it is characterised in that described guide duct goes out
One or more air outlets are set at air port.
A kind of Steam Turbine front bearing box water-tight device the most according to claim 1, it is characterised in that described guide duct is
The rustless steel guide duct of diameter 5cm, wall thickness 2mm.
A kind of Steam Turbine front bearing box water-tight device the most according to claim 5, it is characterised in that described rustless steel is led
Airduct is connected with electric generator casing by sealing welding.
A kind of Steam Turbine front bearing box water-tight device the most according to claim 5, it is characterised in that described rustless steel is led
At electric generator casing 20cm, it is provided with speed-regulating switch on airduct.
A kind of Steam Turbine front bearing box water-tight device the most according to claim 5, it is characterised in that described rustless steel is led
The air opening end of airduct arranges 2 air outlets, is respectively aligned at the bearing that the cylinder of steam leak is connected with central shaft and bearing
At the bearing that case is connected with central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620486472.7U CN205638579U (en) | 2016-05-25 | 2016-05-25 | Turbine unit fore bearing case watertight fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620486472.7U CN205638579U (en) | 2016-05-25 | 2016-05-25 | Turbine unit fore bearing case watertight fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638579U true CN205638579U (en) | 2016-10-12 |
Family
ID=57052277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620486472.7U Expired - Fee Related CN205638579U (en) | 2016-05-25 | 2016-05-25 | Turbine unit fore bearing case watertight fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638579U (en) |
-
2016
- 2016-05-25 CN CN201620486472.7U patent/CN205638579U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161012 Termination date: 20190525 |