CN206903699U - 100MW petrochemical industry pipe network steam conversion steam turbines - Google Patents
100MW petrochemical industry pipe network steam conversion steam turbines Download PDFInfo
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- CN206903699U CN206903699U CN201720661769.7U CN201720661769U CN206903699U CN 206903699 U CN206903699 U CN 206903699U CN 201720661769 U CN201720661769 U CN 201720661769U CN 206903699 U CN206903699 U CN 206903699U
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Abstract
The utility model discloses a kind of 100MW petrochemical industries pipe network steam conversion steam turbine, and it includes rotor, outside cylinder, inner casing, front-end bearing pedestal, rear bearing block and enters vapour tune valve；Front-end bearing pedestal is provided with preceding journal bearing and thrust bearing, and rear bearing block is provided with rear journal bearing, and rotor supports in outside cylinder, inner casing, and by preceding journal bearing and rear journal bearing, and rotor limits the axial float of rotor by thrust bearing.High-power back pressure turbine obtained by the invention, generatine set heat efficiency is high, stable, is adapted to promote and use on a large scale.
Description
Technical field
The present invention relates to the industrial steam turbine of thermoelectricity industry, more particularly to 100MW grade petrochemical industry pipe networks steam to change
With high-power back pressure turbine.
Background technology
In recent years as the development of thermoelectricity industry, thermoelectricity unit progressively develop to maximization, high-efficiency high-power pressure is developed
Unit is extremely urgent, also has leading action to thermoelectricity market.The high-power back pressure of 100MW grade petrochemical industry pipe networks steam conversion
The exploitation of formula steam turbine, can be that enterprise establishes superiority in high-power back pressure steam turbines market competition, there is provided technology
Support, thermoelectricity market is opened up beneficial to enterprise.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided a kind of stability is high, service life
The long high-power back pressure turbine of 100MW grade petrochemical industry pipe networks steam conversion.
In order to solve the above technical problems, a kind of 100MW petrochemical industries pipe network steam conversion steam turbine disclosed by the invention,
Including rotor, outside cylinder, inner casing, front-end bearing pedestal, rear bearing block and enter vapour tune valve, it is characterised in that front-end bearing pedestal is provided with
Preceding journal bearing and thrust bearing, rear bearing block are provided with rear journal bearing, and rotor leads in outside cylinder, inner casing
Preceding journal bearing and the support of rear journal bearing are crossed, rotor limits the axial float of rotor by thrust bearing.
Entering vapour adjusts valve to have two, is arranged in cylinder both sides；And it is quick-closing valve and servo valve combined type knot to enter vapour to adjust valve
Structure.
Packing uses long and short two section gland seal structure before and after described cylinder, and combines honeycomb seal structure.
Compared with prior art, front-end bearing pedestal is provided with preceding journal bearing and thrust bearing, and the structure ensures rotor stability
Property high, service life length.It is also an advantage of the present invention that the vapour that enters that both sides are arranged symmetrically adjusts valve, and it is quick-closing valve to enter vapour to adjust valve
With servo valve fabricated structure, it disclosure satisfy that installation and high-efficiency steam flow behavior etc. require, realize big flow steam operating mode
Under operation, while cylinder uses long and short two section gland seal structure, reduces air leakage, improves steam turbine operation efficiency.
Brief description of the drawings
Fig. 1 is steam turbine profilograph of the present invention；
Fig. 2 is outside cylinder front section structure chart of the present invention；
Fig. 3 is outside cylinder steam discharge segment structure figure of the present invention；
Fig. 4 is the quick-closing valve of the present invention, servo valve integrative-structure figure；
Fig. 5 is admission passage layout drawing of the present invention.
Each label represents in figure：
1st, rotor；2nd, outside cylinder；3rd, inner casing；4th, front-end bearing pedestal；5th, rear bearing block；6th, preceding journal bearing；7th, thrust axis
Hold；8th, rear journal bearing.
Embodiment
Detailed introduction is done to the utility model below in conjunction with accompanying drawing：
As shown in figure 1, the 100MW grade petrochemical industry pipe network steam conversion back pressure turbines of the present embodiment description,
Its power is more than 90MW, 535 DEG C of main steam pressure 8.83MPa, temperature, throttle flow 720t/h, through-flow by governing stage, 21 grades of straight leaves
Piece forms, and generatine set heat efficiency is higher.
On concrete structure, the pipe network steam conversion of 100MW petrochemical industries includes rotor 1, outside cylinder 2, inner casing with steam turbine
3rd, front-end bearing pedestal 4 and rear bearing block 5, front-end bearing pedestal 4 are provided with preceding journal bearing 6 and thrust bearing 7, and rear bearing block 5 is provided with
Journal bearing 8 afterwards, rotor 1 are supported in outside cylinder 2, inner casing 3 by preceding journal bearing 6 and rear journal bearing 8,
Rotor 1 limits the axial float of rotor by thrust bearing 7, and rotor is monobloc forging type, and is provided with hydraulic shaft jacking device.Before cylinder
Packing uses long and short two section packing form afterwards, partly using honeycomb seal form.
Entering vapour adjusts valve to have two, and symmetrical console mode is arranged in cylinder both sides；Such as Fig. 4, and enter vapour adjust valve be quick-closing valve and
Servo valve fabricated structure.Optimized according to set structure, heating power, the quick-closing valve of configuration is 2* Ф 320, servo valve 4* Ф
140, H320 quick-closing valve housings are structure newly developed, while meet installation and the requirement of high efficiency flow characteristic；Servo valve is
H140 high-pressure unloading valves, can not only meet the aerodynamic performance requirements of the unit, also plan the follow-up bigger servo valve of satisfaction
Physical dimension.
Outside cylinder part uses front section newly developed and GN100/80 steam discharge section, as shown in Figure 2 and Figure 3：Steam admission mode uses
The preferable pipe drainage way of sealing, front and rear packing uses long and short two section gland seal structure, and combines honeycomb seal type structure；
Make rational planning for GN100/80 steam discharge section, size form are 2*D700, welded type.
Adjusting valve, as shown in Figure 4,5, steam is led in cylinder by steam inlet pipe using structure is landed, reasonable Arrangement balance pipe,
Air leakage pipe, steam outlet pipe road binders pipeline etc., are avoided interference with.
Thrust bearing thermometric fixes temperature element using sealing and the preferable Novel seal joint of fastness, simplifies thermometric
Element mounting means, reduce the probability of measuring cell damage；Arrangement principle nearby is followed, rationally designs outlet interface, shaft
Measuring cell carries out rational cabling arrangement, simplifies instrument pipeline；
Above-mentioned simply presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.It is although of the invention
It is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those skilled in the art, do not taking off
In the case of from technical solution of the present invention scope, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
More possible changes and modifications, or it is revised as the equivalent embodiment of equivalent variations.Therefore, it is every without departing from technical solution of the present invention
Content, according to the technology of the present invention essence to any simple modifications, equivalents, and modifications made for any of the above embodiments, all should fall
In the range of technical solution of the present invention protection.
Claims (6)
1.100MW petrochemical industry pipe network steam conversion steam turbines, including rotor, outside cylinder, inner casing, front-end bearing pedestal, rear axle
Bearing adjusts valve with vapour is entered, it is characterised in that front-end bearing pedestal is provided with preceding journal bearing and thrust bearing, after rear bearing block is provided with
Journal bearing, rotor support in outside cylinder, inner casing, and by preceding journal bearing and rear journal bearing, and rotor passes through
Thrust bearing limits the axial float of rotor.
2. steam turbine according to claim 1, it is characterised in that enter vapour and adjust valve to have two, be arranged in cylinder both sides；And
It is quick-closing valve and servo valve fabricated structure to enter vapour to adjust valve.
3. steam turbine according to claim 2, it is characterised in that two are entered vapour and adjust the symmetrical console mode arrangement in valve both sides.
4. steam turbine according to claim 2, it is characterised in that servo valve is high-pressure unloading valve.
5. steam turbine according to claim 1, it is characterised in that described rotor is monobloc forging type, and rotor is provided with liquid
Bear down on one shaft device.
6. steam turbine according to claim 1, it is characterised in that packing uses long and short two section vapour before and after described outside cylinder
Seal structure, and combine honeycomb seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720661769.7U CN206903699U (en) | 2017-06-08 | 2017-06-08 | 100MW petrochemical industry pipe network steam conversion steam turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720661769.7U CN206903699U (en) | 2017-06-08 | 2017-06-08 | 100MW petrochemical industry pipe network steam conversion steam turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903699U true CN206903699U (en) | 2018-01-19 |
Family
ID=61286235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720661769.7U Active CN206903699U (en) | 2017-06-08 | 2017-06-08 | 100MW petrochemical industry pipe network steam conversion steam turbines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903699U (en) |
-
2017
- 2017-06-08 CN CN201720661769.7U patent/CN206903699U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310022 Building 1, No. 608, Kangxin Road, Linping District, Hangzhou, Zhejiang Patentee after: Hangzhou Turbine Power Group Co.,Ltd. Address before: 357 Shiqiao Road, Xiacheng District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU STEAM TURBINE Co.,Ltd. |
|
| CP03 | Change of name, title or address |