CN209293859U - A kind of integration steam turbine generator sealing structure - Google Patents
A kind of integration steam turbine generator sealing structure Download PDFInfo
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- CN209293859U CN209293859U CN201821551334.8U CN201821551334U CN209293859U CN 209293859 U CN209293859 U CN 209293859U CN 201821551334 U CN201821551334 U CN 201821551334U CN 209293859 U CN209293859 U CN 209293859U
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Abstract
A kind of integration steam turbine generator sealing structure, including the Steam Turbine being fixed together and generating set, the Steam Turbine and the generating set are passed through by same root main shaft and are mounted for turbine shaft and driven generator rotor；The Steam Turbine and the generating set intersection are equipped with seal area.The seal area includes the first seal area, the second seal area, third seal area and the 4th seal area from the Steam Turbine to the generating set direction；The main shaft and the seal area cooperate seal section to include the first seal section, the second seal section, third seal section and the 4th seal section from the Steam Turbine to the generating set direction；First seal section, second seal section, the third seal section, the 4th seal section are sealed with first seal area, second seal area, the third seal area, the 4th seal area cooperation respectively.
Description
Technical field
The utility model relates to steam turbine generator field, more specifically to a kind of integrated steam turbine generator sealing knot
Structure.
Background technique
Steam turbine is the external combustion rotary machinery that can convert steam thermal energy to mechanical work.Steam from boiler enters vapour
After turbine, successively the nozzle and movable vane Jing Guo a series of loop configurations, convert turbine rotor rotation for the thermal energy of steam
Mechanical energy.Steam carries out energy conversion in different ways, just constitutes the steam turbine of different operating principle in steam turbine.And
Existing steam turbine be usually Steam Turbine and generating set are individually assembled, connected by shaft coupling Steam Turbine rotor with
And electric generating set rotor, and the torque of steam turbine is transmitted to generator.Steam Turbine and generating set are individually assembled can make it is whole
Body assembly volume becomes larger, and number of parts is more, higher for matching requirements；Meanwhile it being needed by shaft coupling connection to rotor
Centering is carried out, slightly deviation will cause to shake, and rotor speed is unable to reach very high, cause working efficiency lower.And by steamer
Unit and generating set are installed using same root integrated spindle axisization can bring very more benefits, such as the body of steam turbine generator
Product will reduce, noise is lower, working efficiency improves, matching requirements are lower, product quality gets a promotion etc., but Steam Turbine
Interior steam, which once enters generating set, will cause the damage of generating set, therefore Steam Turbine and generating set integration peace
Airtight quality after dress between the two is most important.
Utility model content
The utility model provides a kind of integrated steam turbine generator sealing structure, this reality in view of the deficiencies of the prior art
It is by multi-layer sealed and leakage structure that the steam in Steam Turbine is complete with novel integrated steam turbine generator sealing structure
Barrier, cannot be introduced into generating set.
The specific technical solution of the utility model is as follows: a kind of integration steam turbine generator sealing structure, including is connected in
Steam Turbine and generating set together, the Steam Turbine and the generating set are passed through by same root main shaft and are mounted for vapour
Turbine axis and driven generator rotor；The Steam Turbine and the generating set intersection are equipped with seal area.
The Steam Turbine is connected with the generating set integration as a result, realizes the small-sized metaplasia of steam turbine generator
It produces, and connects steam turbine with generator without shaft coupling, reduce vibration and noise, while extending product service life.
As the preferred of the utility model, the seal area includes the from the Steam Turbine to the generating set direction
One seal area, the second seal area, third seal area and the 4th seal area；The main shaft and seal area cooperation seal section are by institute
It states Steam Turbine and includes the first seal section, the second seal section, third seal section and the 4th seal section to the generating set direction；
First seal section, second seal section, the third seal section, the 4th seal section are sealed with described first respectively
Area, second seal area, the third seal area, the 4th seal area cooperation sealing.
Bring problem is the steam prevented in steam turbine after the Steam Turbine is connected with the generating set integration
Into in generator, generator is avoided to damage；The seal area and the main shaft are divided into four sections here, each section all to steaming
Vapour plays the role of sealing and lets out vapour, so that steam is just all dissipated before final stage sealing, cannot be introduced into the generating set.
It is located to be equipped with around the seal area as the preferred of the utility model, in the Steam Turbine and is connected to the vapour
The exhaust chamber outside unit is taken turns, the axial two sides adjacent with blade and second seal area of first seal area, which exist, lets out
Vapour seam.
The steam in the Steam Turbine is discharged from the exhaust chamber as a result, has a small amount of steam that can enter from blade side
Between the main shaft and the seal area, vapour seam is let out from described into the steam between the main shaft and the seal area is most of
Leak out to the exhaust chamber discharge.
As the preferred of the utility model, there are the first resistance vapour ring, the first resistance vapour rings for the first seal section outer circle
In the first seal area inner hole.
The first resistance vapour ring is the locking nut being installed at the first seal section outer circle as a result, is played dynamic whirlpool
Take turns the effect of locking positioning；Meanwhile setting it is described first resistance vapour ring can stop a part of steam pass through enter the main shaft and
Between the seal area, reduce the forward kinetic energy of steam.
As the preferred of the utility model, it is equipped in second seal area and second seal section cooperation sealing
Wide packing.
It is equipped with barrier wave groove with the second sealing section surface of the wide packing cooperation, the two cooperation can be played very
Good envelope vapour effect, if there is some vapor by first seal section, the width packing can effectively hinder steam to continue to lead to
It crosses.
As the preferred of the utility model, second seal area on the outside of the wide packing with the third seal area
Intersection is equipped with the first venthole and the first steam discharge chamber, and first venthole is by the wide packing outer wall and first steam discharge
Chamber connection.
There is major part after first venthole from first steam discharge again by the steam of the wide packing as a result,
Chamber discharge；Meanwhile the first steam discharge chamber is connected to lubricating oil station, can continue to provide lubricating oil, is revolved for the main shaft high speed
Turn to play the role of lubrication and cooling.
As the preferred of the utility model, the third seal area axial sides are equipped with to be cooperated with the third seal section
The narrow packing of sealing, there are the second resistance vapour ring, the second resistance vapour rings to be located at institute for the axial intermediate outer circle of the third seal section
It states among narrow packing.
The narrow packing and the second resistance vapour ring collective effect barrier steam pass through, meanwhile and the narrow packing cooperation
The third sealing section surface be equipped with barrier wave groove, the two cooperation can play the role of sealing vapour well, if there is part steaming
Vapour passes through second seal section, and the narrow packing and the second resistance vapour ring effectively can hinder steam to continue through, into
One step reduces the forward kinetic energy of steam.
As the preferred of the utility model, the third seal area is equipped with second in the outside of the second resistance vapour ring face
The second resistance vapour ring outer wall is connected to by venthole and the second steam discharge chamber, second venthole with the second steam discharge chamber.
As a result, through the steam of first narrow packing largely after second venthole from the second row
The discharge of vapour chamber, and the barrier effect of the second resistance vapour ring makes steam be more easier to lead to second venthole, second
The sealing function of the narrow packing guarantees that steam is substantially all and is blocked at second venthole；Meanwhile the second row
Vapour chamber is connected to lubricating oil station, can be continued to provide lubricating oil, be played the role of lubrication and cooling for the main shaft high speed rotation.
As the preferred of the utility model, it is equipped in the 4th seal area and the 4th seal section cooperation sealing
Packing, the 4th seal area is interior to be equipped with third steam discharge chamber, the third between the packing and the third seal area
Steam discharge chamber is connected to outside the Steam Turbine and the generating set by venthole.
The third steam discharge chamber is arranged on front side of the packing towards the generating set, can guarantee by described the
The minute quantity steam of one seal section, second seal section and the third seal section be completely introduced into after the third steam discharge chamber by
The venthole is expelled to outside steam turbine generator.
As the preferred of the utility model, first seal section, second seal section, the third of the main shaft
Seal section, the 4th diameter of sealed section are gradually reduced.
As a result, first seal section, second seal section, the third seal section, stitch at the 4th seal section
The sectional area of gap is smaller and smaller, can by steam volume it is also smaller and smaller, be conducive to the excretion of steam.
In conclusion the utility model has the following beneficial effects:
1. the integrated steam turbine generator sealing structure of the utility model by the way of multi-layer sealed, make by steam
Fewer and fewer, last barrier completely cannot be introduced into generating set；
2. obstructing using packing and resistance vapour ring to steam, reduce the kinetic energy that steam advances to generating set；
3. seam, multiple ventholes and steam discharge chamber discharge steam using losing heart, extra steam is discharged, and lead to
Stomata is provided with the edge of packing, is more conducive to the discharge of steam；
It 4. steam discharge chamber is connected to lubricating oil station, can continue to provide lubricating oil, play lubrication and cold for main shaft high speed rotation
But effect；
5. main shaft cooperates sealing by the way of multistage and step by step diameter reduction at sealing, make the through-current capacity of steam gradually
Reduce.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model integration steam turbine generator sealing structure；
Fig. 2 is the partial enlarged view of the utility model integration steam turbine generator sealing structure seal area；
In figure, 1- Steam Turbine, 11- exhaust chamber, 2- generating set, 3- main shaft, the first seal section of 31-, 311- first hinder
Vapour ring, the second seal section of 32-, 33- third seal section, 331- second hinder vapour ring, the 4th seal section of 34-, 4- seal area, 41- the
One seal area, 411- let out the second seal area, 421- wide packing, the first venthole of 422-, the first steam discharge of 423- described in vapour seam, 42-
The narrow packing of third seal area, 431-, the second venthole of 432- described in chamber, 43-, the second steam discharge of 433- chamber, the 4th sealing described in 44-
Area, 441- packing, 442- third steam discharge chamber, 443- venthole.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the utility model is described in further detail.
Such as Fig. 1, a kind of integration steam turbine generator sealing structure, including the Steam Turbine 1 being fixed together and generator
Group 2, Steam Turbine 1 and generating set 2 are passed through by same root main shaft 3 and are mounted for turbine shaft and driven generator rotor；
Steam Turbine 1 and 2 intersection of generating set are equipped with seal area 4.
2 integration connection of Steam Turbine 1 and generating set as a result, realizes the miniaturization production of steam turbine generator, and
Steam turbine is connected with generator without shaft coupling, reduces vibration and noise, while extending product service life.
Such as Fig. 1, seal area 4 from Steam Turbine 1 to 2 direction of generating set include the first seal area 41, the second seal area 42,
Third seal area 43 and the 4th seal area 44；Main shaft 3 and seal area 4 cooperate seal section from Steam Turbine 1 to 2 direction of generating set
Including the first seal section 31, the second seal section 32, third seal section 33 and the 4th seal section 34；First seal section 31, second is close
Seal section 32, third seal section 33, the 4th seal section 34 respectively with the first seal area 41, the second seal area 42, third seal area 43,
The cooperation sealing of 4th seal area 44.
Bring problem is to prevent the steam in steam turbine from entering hair after the 2 integration connection of Steam Turbine 1 and generating set
In motor, generator is avoided to damage；Seal area 4 and main shaft 3 are divided into four sections here, each section all to steam play sealing and
Vapour effect is let out, so that steam is just all dissipated before final stage sealing, cannot be introduced into generating set 2.
As shown in Figure 1, Figure 2, the exhaust chamber being connected to outside Steam Turbine 1 is equipped in Steam Turbine 1 around seal area 4
11, the axial two sides adjacent with blade and the second seal area 42 of the first seal area 41, which exist, lets out vapour seam 411.
The steam in Steam Turbine 1 is discharged from exhaust chamber 11 as a result, has a small amount of steam that can enter main shaft 3 from blade side
Between seal area 4,11 row of exhaust chamber is leaked out into the steam major part between main shaft 3 and seal area 4 from vapour seam 411 is let out
Out.
As shown in Figure 1, Figure 2,31 outer circle of the first seal section is there are the first resistance vapour ring 311, and the first resistance vapour ring 311 is embedded in the first sealing
In 41 inner hole of area.
The first resistance vapour ring 311 is the locking nut being installed at 31 outer circle of the first seal section as a result, plays and locks dynamic turbine
The effect of tightening position；Meanwhile setting the first resistance vapour ring 311 can stop a part of steam by enter main shaft 3 and seal area 4 it
Between, reduce the forward kinetic energy of steam.
As shown in Figure 1, Figure 2, the wide packing 421 with the cooperation sealing of the second seal section 32 is installed in second seal area 42.
It is equipped with barrier wave groove with 32 surface of the second seal section of wide packing 421 cooperation, the two cooperation can be played very well
The effect of envelope vapour, if having some vapor by the first seal section 31, wide packing 421 effectively can hinder steam to continue through.
As shown in Figure 1, Figure 2, second seal area 42 in wide 421 outside of packing is logical equipped with first with 43 intersection of third seal area
Wide 421 outer wall of packing and the first steam discharge chamber 423 are connected to by stomata 422 and the first steam discharge chamber 423, the first venthole 422.
There is major part after the first venthole 422 from the first steam discharge chamber 423 again by the steam of wide packing 421 as a result,
Discharge；Meanwhile first steam discharge chamber 423 be connected to lubricating oil station, can continue to provide lubricating oil, play for 3 high speed rotation of main shaft
Lubrication and cooling effect.
As shown in Figure 1, Figure 2,43 axial sides of third seal area are equipped with the narrow packing with the cooperation sealing of third seal section 33
431, there are the second resistance vapour ring 331, the second resistance vapour rings 331 to be located in narrow packing 431 for the axial intermediate outer circle of third seal section 33
Between.
Narrow packing 431 and the second resistance 331 collective effect of vapour ring barrier steam pass through, meanwhile and narrow packing 431 cooperate the
Three seal sections, 33 surface is equipped with barrier wave groove, and the two cooperation can be played the role of sealing vapour well, if there is some vapor process
Second seal section 32, narrow packing 431 and the second resistance vapour ring 331 effectively can hinder steam to continue through, and further decrease steaming
The forward kinetic energy of vapour.
As shown in Figure 1, Figure 2, third seal area 43 is equipped with the second venthole 432 and the in the outside of the second resistance 331 face of vapour ring
Second resistance 331 outer wall of vapour ring and the second steam discharge chamber 433 are connected to by two steam discharge chambers 433, the second venthole 432.
As a result, through the steam of first narrow packing 431 largely after the second venthole 432 from the second steam discharge chamber
433 discharges, and the barrier effect of the second resistance vapour ring 331 makes steam be more easier to lead to the second venthole 432, second narrow vapour
The sealing function of envelope 431 guarantees that steam is substantially all and is blocked at the second venthole 432；Meanwhile second steam discharge chamber 433 and profit
The connection of lubricating oil station can continue to provide lubricating oil, play the role of lubrication and cooling for 3 high speed rotation of main shaft.
As shown in Figure 1, Figure 2, the packing 441 with the cooperation sealing of the 4th seal section 34 is installed, the 4th is close in the 4th seal area 44
It seals and is equipped with third steam discharge chamber 442 in area 44 between packing 441 and third seal area 43, third steam discharge chamber 442 is by venthole
443 are connected to outside Steam Turbine 1 and generating set 2.
441 front side of packing towards generating set 2 is arranged in third steam discharge chamber 442, can guarantee by the first seal section
31, the minute quantity steam of the second seal section 32 and third seal section 33 is completely introduced into after third steam discharge chamber 442 by 443 row of venthole
Out to outside steam turbine generator.
As shown in Figure 1, Figure 2, the first seal section 31 of main shaft 3, the second seal section 32, third seal section 33, the 4th seal section 34
Diameter is gradually reduced.
As a result, the first seal section 31, the second seal section 32, third seal section 33, at the 4th seal section 34 gap section
Product it is smaller and smaller, can by steam volume it is also smaller and smaller, be conducive to the excretion of steam.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical new to this
The conception and scope of type is defined.Without departing from the design concept of the present utility model, ordinary people in the field is to this
The all variations and modifications that the technical solution of utility model is made, should fall within the protection scope of the present utility model, this is practical
Novel claimed technology contents, are all described in the claims.
Claims (10)
1. a kind of integration steam turbine generator sealing structure, it is characterised in that: including the Steam Turbine (1) being fixed together and hair
Motor group (2), the Steam Turbine (1) and the generating set (2) are passed through by same root main shaft (3) and are mounted for turbine shaft
And driven generator rotor；The Steam Turbine (1) and the generating set (2) intersection are equipped with seal area (4).
2. a kind of integrated steam turbine generator sealing structure according to claim 1, it is characterised in that: the seal area
It (4) include the first seal area (41), the second seal area (42), the by the Steam Turbine (1) Xiang Suoshu generating set (2) direction
Three seal areas (43) and the 4th seal area (44)；The main shaft (3) and the seal area (4) cooperation seal section are by the steam turbine
Group (1) Xiang Suoshu generating set (2) direction include the first seal section (31), the second seal section (32), third seal section (33) and
4th seal section (34)；It is first seal section (31), second seal section (32), the third seal section (33), described
4th seal section (34) respectively with first seal area (41), second seal area (42), the third seal area (43),
4th seal area (44) the cooperation sealing.
3. a kind of integrated steam turbine generator sealing structure according to claim 2, it is characterised in that: the Steam Turbine
(1) it is equipped with around the seal area (4) in and is connected to the external exhaust chamber (11) of the Steam Turbine (1), described first
The axial two sides adjacent with blade and second seal area (42) of seal area (41), which exist, lets out vapour seam (411).
4. a kind of integrated steam turbine generator sealing structure according to claim 3, it is characterised in that: first sealing
There are the first resistance vapour ring (311), first resistances vapour ring (311) to be embedded in the first seal area (41) inner hole for section (31) outer circle
It is interior.
5. a kind of integrated steam turbine generator sealing structure according to claim 2, it is characterised in that: second sealing
Wide packing (421) with second seal section (32) cooperation sealing is installed in area (42).
6. a kind of integrated steam turbine generator sealing structure according to claim 5, it is characterised in that: the width packing
(421) second seal area (42) on the outside of is being equipped with the first venthole (422) with third seal area (43) intersection
With the first steam discharge chamber (423), first venthole (422) is by wide packing (421) outer wall and the first steam discharge chamber
(423) it is connected to.
7. a kind of integrated steam turbine generator sealing structure according to claim 2, it is characterised in that: the third sealing
Area (43) axial sides are equipped with the narrow packing (431) with the third seal section (33) cooperation sealing, the third seal section
(33) there are the second resistances vapour ring (331), second resistance vapour ring (331) to be located at the narrow packing (431) for axial intermediate outer circle
It is intermediate.
8. a kind of integrated steam turbine generator sealing structure according to claim 7, it is characterised in that: the third sealing
Area (43) is equipped with the second venthole (432) and the second steam discharge chamber (433), institute in the outside of described second resistance vapour ring (331) face
It states the second venthole (432) and is connected to the second resistance vapour ring (331) outer wall with the second steam discharge chamber (433).
9. a kind of integrated steam turbine generator sealing structure according to claim 2, it is characterised in that: the 4th sealing
Packing (441) with the 4th seal section (34) cooperation sealing, the 4th seal area (44) interior position are installed in area (44)
Third steam discharge chamber (442), the third steam discharge chamber are equipped between the packing (441) and the third seal area (43)
(442) Steam Turbine (1) is connected to by venthole (443) and the generating set (2) is external.
10. a kind of integrated steam turbine generator sealing structure according to claim 2, it is characterised in that: the main shaft (3)
First seal section (31), second seal section (32), the third seal section (33), the 4th seal section (34)
Diameter is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821551334.8U CN209293859U (en) | 2018-09-21 | 2018-09-21 | A kind of integration steam turbine generator sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821551334.8U CN209293859U (en) | 2018-09-21 | 2018-09-21 | A kind of integration steam turbine generator sealing structure |
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| Publication Number | Publication Date |
|---|---|
| CN209293859U true CN209293859U (en) | 2019-08-23 |
Family
ID=67653415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821551334.8U Active CN209293859U (en) | 2018-09-21 | 2018-09-21 | A kind of integration steam turbine generator sealing structure |
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| Country | Link |
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| CN (1) | CN209293859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083691A (en) * | 2018-09-21 | 2018-12-25 | 浙江巨源动力装备有限公司 | A kind of integration steam turbine generator sealing structure |
| CN109083691B (en) * | 2018-09-21 | 2024-10-29 | 浙江巨源动力装备有限公司 | Integrated steam turbine generator sealing structure |
-
2018
- 2018-09-21 CN CN201821551334.8U patent/CN209293859U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083691A (en) * | 2018-09-21 | 2018-12-25 | 浙江巨源动力装备有限公司 | A kind of integration steam turbine generator sealing structure |
| CN109083691B (en) * | 2018-09-21 | 2024-10-29 | 浙江巨源动力装备有限公司 | Integrated steam turbine generator sealing structure |
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