CN207454036U - Steam Turbine cylinder sream check device - Google Patents
Steam Turbine cylinder sream check device Download PDFInfo
- Publication number
- CN207454036U CN207454036U CN201721629391.9U CN201721629391U CN207454036U CN 207454036 U CN207454036 U CN 207454036U CN 201721629391 U CN201721629391 U CN 201721629391U CN 207454036 U CN207454036 U CN 207454036U
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- Prior art keywords
- sealing ring
- cylinder
- rotor
- ring
- bearing
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Abstract
The utility model is related to a kind of Steam Turbine cylinder sream check devices, rotor is installed in cylinder and bearing chamber, rotor is connected with cylinder by gland seal structure, rotor is connected with bearing chamber by bearing, air-tight structure is provided on the end face of cylinder, air-tight structure is between cylinder and bearing chamber, air-tight structure includes sealing ring, sealing ring is fastenedly connected on cylinder end face, sealing ring is loop configuration, seal ring set is on rotor, ring-shaped air chamber is provided in sealing ring, air admission hole is provided on sealing ring, air admission hole connects high-pressure pump and ring-shaped air chamber by pipeline, venthole is provided on sealing ring, gland seal structure is provided between the sealing ring and rotor of ring-shaped air chamber both sides, casing is provided on the outside of sealing ring, casing connection sealing ring and steam baffle, steam baffle is loop configuration, it is installed on rotor.
Description
Technical field：
The utility model belongs to steam turbine gear steam packing technical field of structures, and in particular to a kind of vapour of thermal power generation station-service
Take turns unit cylinder sream check device.
Background technology：
Steam turbine is one of capital equipment in thermal power plant, its safe operation is directly related to entire power plant
Normal operation, turbine rotor are the primary pivot components of steam turbine, generally pass through bearings, bearing connection bearing chamber and vapour
Turbine wheel axis, bearing chamber is interior to set lubricating oil, and still, in use, cylinder gas leakage is larger for steam turbine, and leads in cylinder
What is entered is high-pressure water vapor, and distance is small between the cylinder of steam turbine and bearing chamber, cylinder leakage high-temperature water vapor carry compared with
High speed and pressure, it is easy into bearing chamber, make the indoor Water entrained in lube oil of bearing, and the high-temperature water of cylinder leakage
Steam is contacted with bearing chamber, and bearing room temperature is caused to raise, and the temperature of lubricating oil in bearing chamber is improved, so as to influence lubricating oil
Quality, therefore, steam turbine leakage problem seriously affect the normal operation of Steam Turbine, are that the difficult point of steam turbine technology is asked
Topic.
Utility model content：
In conclusion in order to overcome the shortcomings of prior art problem, the utility model provides a kind of Steam Turbine cylinder
Sream check device, it is that air-tight structure and gear vapour Heat-insulation device are set between the cylinder and bearing chamber of steam turbine, on the one hand anti-
On the other hand only cylinder gas leakage plays thermal insulation gear heat effect, so as to which the water vapour that cylinder is avoided to reveal enters in bearing chamber, makes lubrication
On the other hand oil band water completely cuts off temperature and is transferred to bearing chamber, so as to ensure the quality of the indoor lubricating oil of bearing, ensure equipment peace
Full stable operation.
In order to solve the above technical problems, what the technical solution of the utility model was realized in：
A kind of Steam Turbine cylinder sream check device, wherein：Including rotor, cylinder, bearing chamber and bearing, the rotor is worn
In cylinder and bearing chamber, rotor is connected with cylinder by gland seal structure, and the rotor is connected with bearing chamber by bearing,
Air-tight structure is provided on the end face of the cylinder, for air-tight structure between cylinder and bearing chamber, described is airtight
Seal structure includes sealing ring, and sealing ring is fastenedly connected on cylinder end face, and the sealing ring is loop configuration, and sealing ring is set with
On rotor, ring-shaped air chamber is provided in the sealing ring, air admission hole, the air admission hole are provided on the sealing ring
High-pressure pump and ring-shaped air chamber are connected by pipeline, venthole, the ring-shaped air chamber both sides are provided on the sealing ring
Sealing ring and rotor between be provided with gland seal structure, be provided with casing on the outside of the sealing ring, casing connection sealing ring with
Steam baffle, the steam baffle are loop configuration, are installed on rotor.
Further, exhaust outlet is provided on the casing, exhaust outlet connects aspiration pump, the sealing ring by pipeline
On venthole connection casing.
Further, the gland seal structure is copper tooth gland seal structure.
Further, the steam baffle includes sequentially connected outer layer, thermal insulation layer and internal layer, and the outer layer and internal layer are equal
For steel plate, thickness 5mm is provided with wear-resistant pad between the steam baffle and rotor.
Further, the distance between the steam baffle and bearing chamber are 50 ~ 80mm.
The beneficial effects of the utility model are：
1st, the utility model is that air-tight structure and gear vapour Heat-insulation device are set between the cylinder and bearing chamber of steam turbine,
On the one hand prevent cylinder gas leakage, thermal insulation gear heat effect is on the other hand played, so as to which the water vapour that cylinder is avoided to reveal enters bearing chamber
It is interior, make Water entrained in lube oil, on the other hand completely cut off temperature and be transferred to bearing chamber, so as to ensure the quality of the indoor lubricating oil of bearing,
Ensure equipment safety stable operation.
The 2nd, ring-shaped air chamber is set in the sealing ring of the utility model, gases at high pressure are sent into ring-shaped air chamber by high-pressure pump,
Make to form air-tight structure between sealing ring and rotor full of gases at high pressure, gases at high pressure in ring-shaped air chamber, prevent in cylinder
Water vapour gas leakage, between the sealing ring and rotor of ring-shaped air chamber both sides set copper tooth gland seal structure, ring-shaped air chamber, copper tooth packing
Structure and the original gland seal structure of cylinder form multi-layer sealed, can effectively improve packing effect, avoid gas leakage.
3rd, the utility model sets steam baffle, and thermal insulation layer is set in steam baffle, even if the water vapour leakage in cylinder, leakage
In water vapour sleeve pipe afterwards, the presence of thermal insulation layer avoids water vapour heat transfer from avoiding steam temperature pair to bearing chamber
The influence of the indoor lubricating oil of bearing, meanwhile, between steam baffle and bearing chamber end face also have 50 ~ 80mm gap, the gap
In the presence of can also play heat-blocking action.
4th, taken out after the water vapour leakage in the cylinder of the utility model in meeting sleeve pipe under the action of aspiration pump
It walks, water vapour is avoided to enter bearing chamber.
Description of the drawings：
Fig. 1 is the structure diagram of the utility model
1. rotor, 2. cylinders, 3. bearing chambers, 4. bearings, 5. gland seal structures, 6. sealing rings, 7. ring-shaped air chambers, 8. air inlets
It is hole, 9. high-pressure pumps, 10. casings, 11. steam baffles, 12. ventholes, 13. exhaust outlets, 14. aspiration pumps, 15. outer layers, 16. heat-insulated
Layer, 17. internal layers, 18. wear-resistant pads.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of Steam Turbine cylinder sream check device, including rotor 1, cylinder 2, bearing chamber 3 and bearing 4, institute
The rotor 1 stated is installed in cylinder 2 and bearing chamber 3, and rotor 1 is connected with cylinder 2 by gland seal structure 5, and gland seal structure 5 is copper tooth
Gland seal structure, the rotor 1 are connected with bearing chamber 3 by bearing 4, and airtight sealed knot is provided on the end face of the cylinder 2
Structure, for air-tight structure between cylinder 2 and bearing chamber 3, the air-tight structure includes sealing ring 6, and the fastening of sealing ring 6 connects
It is connected on 2 end face of cylinder, the sealing ring 6 is loop configuration, and sealing ring 6 is sleeved on rotor 1, in the sealing ring 6
Ring-shaped air chamber 7 is provided with, air admission hole 8 is provided on the sealing ring 6, the air admission hole 8 connects high pressure gas by pipeline
9 and ring-shaped air chamber 7 are pumped, venthole 12 are provided on the sealing ring 6, the sealing ring 6 of 7 both sides of ring-shaped air chamber is with turning
Gland seal structure 5 is provided between son 1, gland seal structure 5 is copper tooth gland seal structure 5, and 6 outside of sealing ring is provided with casing
10, casing 10 connects sealing ring 6 and steam baffle 11, and the steam baffle 11 is loop configuration, is installed on rotor 1.Steam baffle
The distance between 11 and bearing chamber 3 are 50 ~ 80mm, and exhaust outlet 13 is provided on casing 10, and exhaust outlet 13 is connected by pipeline and taken out
Air pump 14, the venthole 12 on the sealing ring 6 connect casing 10.Steam baffle 11 includes sequentially connected outer layer 15, heat-insulated
Layer 16 and internal layer 17, the outer layer 15 and internal layer 17 are steel plate, thickness 5mm, the steam baffle 11 and rotor 1 it
Between be provided with wear-resistant pad 18.
In use, starting high-pressure pump 9, high-pressure pump 9 is passed through high pressure by ring-shaped air chamber 7 of the pipeline into sealing ring 6
Air, pressure-air form air-tight structure, sealing ring 6 and the rotor 1 of 7 both sides of ring-shaped air chamber between sealing ring 6 and rotor 1
Between copper tooth gland seal structure 5,2 original 5 shape of gland seal structure of copper tooth gland seal structure 5, air-tight structure and steam turbine are set
Into multiple-sealed structure, the water vapour in cylinder 2 can effectively be avoided to reveal, the outside of the sealing ring 6 of the utility model
Steam baffle 11 is connected by casing 10, thermal insulation layer 16 is provided in steam baffle 11, even if having part water vapour leakage, the water of leakage
It in steam sleeve pipe 10, is pumped under the action of aspiration pump 14, the setting of thermal insulation layer 16 can avoid the heat of water vapour
Pass to 4 case of bearing.Meanwhile also there are the gap of 50 ~ 80mm between steam baffle 11 and bearing chamber 3, the setting in the gap also can
Heat-blocking action is enough played, the gases at high pressure into ring-shaped air chamber 7, from 12 sleeve pipe 10 of venthole, then from 13 row of exhaust outlet
Go out, form gas circuit Xun Huan.
It is noted that embodiment described above is to the illustrative and not limiting of technical solutions of the utility model, affiliated skill
The equivalent substitution of art field those of ordinary skill or the other modifications made according to the prior art, as long as not new beyond this practicality
The thinking and scope of type technical solution should be included within the interest field required by the utility model.
Claims (5)
1. a kind of Steam Turbine cylinder sream check device, it is characterised in that：Including rotor（1）, cylinder（2）, bearing chamber（3）And bearing
（4）, the rotor（1）It is installed on cylinder（2）And bearing chamber（3）It is interior, rotor（1）With cylinder（2）Pass through gland seal structure（5）Even
It connects, the rotor（1）With bearing chamber（3）Pass through bearing（4）Connection, the cylinder（2）End face on be provided with hermetic seal
Structure, air-tight structure are located at cylinder（2）With bearing chamber（3）Between, the air-tight structure includes sealing ring（6）, sealing
Ring（6）It is fastenedly connected in cylinder（2）On end face, the sealing ring（6）For loop configuration, sealing ring（6）It is sleeved on rotor（1）
On, the sealing ring（6）Inside it is provided with ring-shaped air chamber（7）, the sealing ring（6）On be provided with air admission hole（8）, it is described
Air admission hole（8）High-pressure pump is connected by pipeline（9）With ring-shaped air chamber（7）, the sealing ring（6）On be provided with venthole
（12）, the ring-shaped air chamber（7）The sealing ring of both sides（6）With rotor（1）Between be provided with gland seal structure（5）, described is close
Seal ring（6）Outside is provided with casing（10）, casing（10）Connect sealing ring（6）With steam baffle（11）, the steam baffle（11）
For loop configuration, rotor is installed on（1）On.
2. Steam Turbine cylinder sream check device according to claim 1, it is characterised in that：The casing（10）Upper setting
There is exhaust outlet（13）, exhaust outlet（13）Aspiration pump is connected by pipeline（14）, the sealing ring（6）On venthole（12）Even
Logical casing（10）.
3. Steam Turbine cylinder sream check device according to claim 1, it is characterised in that：The gland seal structure（5）For
Copper tooth gland seal structure.
4. Steam Turbine cylinder sream check device according to claim 1, it is characterised in that：The steam baffle（11）Including
Sequentially connected outer layer（15）, thermal insulation layer（16）And internal layer（17）, the outer layer（15）And internal layer（17）It is steel plate, it is thick
It spends for 5mm, the steam baffle（11）With rotor（1）Between be provided with wear-resistant pad（18）.
5. Steam Turbine cylinder sream check device according to claim 1, it is characterised in that：The steam baffle（11）With axis
Hold room（3）The distance between be 50 ~ 80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629391.9U CN207454036U (en) | 2017-11-29 | 2017-11-29 | Steam Turbine cylinder sream check device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629391.9U CN207454036U (en) | 2017-11-29 | 2017-11-29 | Steam Turbine cylinder sream check device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454036U true CN207454036U (en) | 2018-06-05 |
Family
ID=62275418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721629391.9U Expired - Fee Related CN207454036U (en) | 2017-11-29 | 2017-11-29 | Steam Turbine cylinder sream check device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454036U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160799A (en) * | 2020-09-27 | 2021-01-01 | 铜陵有色金属集团股份有限公司 | Steam blocking structure and device |
| CN114321374A (en) * | 2021-12-31 | 2022-04-12 | 崇左南方水泥有限公司 | Grinding roller sealing device of vertical mill |
-
2017
- 2017-11-29 CN CN201721629391.9U patent/CN207454036U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160799A (en) * | 2020-09-27 | 2021-01-01 | 铜陵有色金属集团股份有限公司 | Steam blocking structure and device |
| CN114321374A (en) * | 2021-12-31 | 2022-04-12 | 崇左南方水泥有限公司 | Grinding roller sealing device of vertical mill |
| CN114321374B (en) * | 2021-12-31 | 2022-10-21 | 崇左南方水泥有限公司 | Sealing device for grinding roller of vertical mill |
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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: 20180605 Termination date: 20181129 |