CN202370592U - Scale type arrangement steam seal belt for steam turbine and steam seal device for steam turbine - Google Patents
Scale type arrangement steam seal belt for steam turbine and steam seal device for steam turbine Download PDFInfo
- Publication number
- CN202370592U CN202370592U CN2011205343974U CN201120534397U CN202370592U CN 202370592 U CN202370592 U CN 202370592U CN 2011205343974 U CN2011205343974 U CN 2011205343974U CN 201120534397 U CN201120534397 U CN 201120534397U CN 202370592 U CN202370592 U CN 202370592U
- Authority
- CN
- China
- Prior art keywords
- arc
- steam
- tinsel
- packing
- steam seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a scale type arrangement steam seal belt for a steam turbine and a steam seal device for the steam turbine. The steam seal belt is formed by bending, overlying and welding high-temperature alloy metal sheets, wherein arc-shaped bending surfaces of the front row of metal sheets and the back row of metal sheets are arranged front and back in a staggered mode; the steam seal device comprises a circular arc-shaped steam seal ring block, wherein the inner diameter of the ring block is provided with at least one pair of steam seal ring teeth along the axial direction; the scale type arrangement steam seal belt is arranged between the steam seal ring teeth; and arc-shaped concave surfaces of the metal sheets of the steam seal belt are formed on the steam facing side of the steam seal belt. According to the scale type arrangement steam seal belt, the multi-stage throttling expansion of steam in a scaly air cavity can be realized effectively by a circular arc-shaped cavity without a sharp corner, the energy of steam flow is consumed effectively, and a damping effect is achieved, so that the leakage of the steam along an axial gap is reduced, the sealing performance of steam seal is enhanced, and the work efficiency of an engine and the steam turbine is improved. An automatically-contracted steam seal can regulate a gap between the steam seal and a rotating shaft according to the pressure of the steam, so that the collision and abrasion of the steam seal and a rotor are avoided effectively, and serious accidents such as the bending of the rotor, 'locking' and the like are prevented effectively.
Description
Technical field
The utility model belongs to motor, gas turbine field; Especially relate to a kind of steam turbine and arrange packing band and turbine steam seal device thereof with flake type; Device adopts flake type to arrange the packing band and automatic telescopic type labyrinth casing improves the sealing of steam, thereby improves motor, turbine work efficient.
Background technique
Packing is the steam tight parts in motor, the steam turbine, and its purpose just is to seal the steam of steam turbine, improves the utilization ratio of steam.The main shaft steam tight parts of motor, steam turbine are in the main shaft radial position; In order to prevent the dynamic and static mill that bumps of sealed member and main shaft; Between sealed member and main shaft, must be designed with the gap; Problem with regard to existing Steam loss to increase that the gap is too big, motor, Efficiency of Steam Turbine just reduce.The gap is too little, just causes the sound friction easily, causes accident.For the two is taken into account, thereby introduce sealing gland.
Traditional in the art sealing means has labyrinth gland, honeycomb steam seal and Bu Laideng sealing gland etc.The sealing principle of labyrinth gland is to expand through multistage throttle to produce damping to consume the steam flow energy, reduces the steam purpose of clearance leakage vertically thereby reach.Because between cog is an annular cavity, hoop flows and has significantly reduced eddy current reduction of speed effect, its resistance vapour weak effect, and amount of leakage is bigger, can't reach desired sealing effect.Simultaneously, when the labyrinth clearance appearance is uneven (being difficult in the real work avoid), because amount of leakage is bigger, the energy that produces exciting is also big, and in a single day the steam flow excitation that the turbine high-pressure rotor is produced takes place just to be difficult to solve, and jeopardizes unit safety operation.The honeycomb sealing gland makes the gas that gets in each honeycomb form immense pressure at cellular orthohexagonal six sharp corners, thereby promoting effect has been played in the propagation of gas owing to its orthohexagonal shape, is unsuitable for the sealing of gas.More than two kinds of sealing means when impact and rub, do not have yielding, cause steam turbine vibrations to increase more easily, unit safety is threatened.Though and the Bu Laideng sealing gland utilizes the effect of spring and vapor pressure to reduce the flow-induced vibration that produces owing to the sound friction; But, make it have other shortcoming except the sound friction of above-mentioned two kinds of sealing gland modes because this mode has been continued to use the structure of honeycomb or labyrinth air seal.
Summary of the invention
The purpose of the utility model is to propose a kind of steam turbine to arrange packing band and turbine steam seal device thereof with flake type, and said device adopts flake type sealing strip and automatic telescopic type air sealing.Flake type packing band can effectively suppress the circulation of steam flow, improves the sealing of steam, thereby improves motor, turbine work efficient.Automatically the telescopic type packing can be regulated the gap of sealing gland and rotatingshaft according to vapor pressure, thereby reaches the chance that reduces dynamic and static friction and steam turbine vibrations, reduces production accident.
To achieve these goals, the technological scheme of the utility model is:
A kind of steam turbine is arranged the packing band with flake type; Said packing band by a plurality of have the fan-shaped tinsel of multi sphere face before and after mutual superposition be welded to form; The external arc limit and the interior circular arc limit of fan-shaped tinsel are concentric; The external arc avris that is welded to each other tinsel is called packing band exterior arc surface; The interior circular arc avris that is welded to each other tinsel is called packing band inner arc surface, and a plurality of spaces that formed by sealing before and after the tinsel cambered surface are arranged between packing band exterior arc surface and inner arc surface, and said cambered surface is the arc-shaped concave of the mutual linking that is bent to form up and down along external arc limit and interior circular arc limit by tinsel; The reverse side of arc-shaped concave is the arc convex face, and said space is to ride over the flake type that welding forms on the front-seat arc convex face by the back joining place of arranging the adjacent arc-shaped concave of tinsel to arrange cavity.
A kind of turbine steam seal device; Comprise the packing ring body that is provided with around turbine spindle; Said packing ring body is docked by six circular arc labyrinth ring pieces at least each other to be formed; The internal diameter of said circular arc labyrinth ring piece vertically and be provided with at least one pair of labyrinth ring tooth between the turbine spindle; Between the labyrinth ring tooth, be provided with flake type and arrange the packing band, said packing band by a plurality of have the fan-shaped tinsel of multi sphere face before and after mutual superposition be welded to form, the external arc limit and the interior circular arc limit of fan-shaped tinsel are concentric; The external arc avris that is welded to each other tinsel is called packing band exterior arc surface; The interior circular arc avris that is welded to each other tinsel is called packing band inner arc surface, and a plurality of spaces that formed by sealing before and after the tinsel cambered surface are arranged between packing band exterior arc surface and inner arc surface, and said cambered surface is the arc-shaped concave of the mutual linking that is bent to form up and down along external arc limit and interior circular arc limit by tinsel; The reverse side of arc-shaped concave is the arc convex face; Said space is to ride over the flake type that welding forms on the front-seat arc convex face by the back joining place of arranging the adjacent arc-shaped concave of tinsel to arrange cavity, and the exterior arc surface of said packing band is welded on the internal diameter arc surface of labyrinth ring piece, and the arc-shaped concave of said packing band tinsel is set to meet the vapour side.
The tinsel arc-shaped concave of said packing band and the central axis angle of turbine spindle are more than or equal to 90 degree.
The internal diameter of said circular arc labyrinth ring piece is respectively arranged with two pairs of labyrinth ring teeth vertically; Circular arc labyrinth ring piece between the two pairs of labyrinth ring teeth is provided with the circular groove of indent; The opening end both sides of circular groove inwardly are provided with spacing endless belt; Cross section is installed in the annular groove for the packing inner ring body of " T " shape; Be formed with an air-pressure chamber between the back side of packing inner ring body and the circular groove bottom surface, circular arc labyrinth ring piece is provided with vent, and vent is communicated with air-pressure chamber; Ring follow-up shell fragment between the packing inner ring body back side and circular groove bottom surface, being provided with, ring rising shell fragment between the packing inner ring body back side and spacing endless belt, being provided with.
Ring follow-up shell fragment is two in said, and ring follow-up shell fragment is separately positioned on packing inner ring body back side circular arc two side ends towards 10 interior degree arc round angle places in two.
Ring rising shell fragment is right angle " U " the font spring sheet of an end opening in said; " U " font spring sheet opening side fastens the packing inner ring body back side; Spacing endless belt is withstood in spring sheet opening side two lateral plate ends, and the closed end intermediate section of " U " font spring sheet is fixed on the packing inner ring body back side through a pressing plate.
The beneficial effect of the utility model is: the no wedge angle circular arc cavity that flake type is arranged the packing band can make steam realize that in the flakey air cavity multistage throttle expands effectively; Effectively consume the steam flow energy and produce damping; Thereby reduce the steam leakage in gap vertically; Strengthen the sealing of sealing gland, improve motor, turbine work efficient.Automatically the telescopic type sealing gland can be regulated the gap of sealing gland and rotatingshaft according to vapor pressure, has avoided the mill that bumps of sealing gland and rotor effectively, and in the unit starting process, sealing gland initiatively can make unit starting steady and smooth more away from rotor; And under unit had an accident state, the vapor pressure reduction can be avoided changeing when coasting operation and sealing gland is bumped mill, thereby effectively anti-spline is from the generation of serious accidents such as bending, " locking ".
Below in conjunction with accompanying drawing and embodiment the utility model is made a detailed description.
Description of drawings
Fig. 1 is the utility model packing band structure schematic representation;
Fig. 2 is the axial schematic representation of the utility model packing strap end portion, and the A of Fig. 1 is to view;
Fig. 3 is that the utility model packing band is met the vapour schematic representation;
Fig. 4 is the utility model air seal set structural representation;
Fig. 5 is the utility model circular arc labyrinth ring block structure schematic representation;
Fig. 6 is the utility model circular arc labyrinth ring piece internal structure schematic representation, the D-D view 1 of Fig. 5;
Fig. 7 is the utility model circular arc labyrinth ring piece sectional perspective structural representation;
Fig. 8 is the circular arc labyrinth ring piece internal structure schematic representation of the multi-form installation of packing band;
Fig. 9 is the circular arc labyrinth ring piece internal structure schematic representation that has inner ring body, the D-D view 2 of Fig. 5.
Embodiment
Embodiment 1:
A kind of steam turbine is arranged packing band embodiment with flake type; The packing band is welded by the crooked stack of sheet metal of refractory alloy; Referring to Fig. 1, Fig. 2 and Fig. 3; Said packing band is had the fan-shaped tinsel 1 front and back mutual superposition of multi sphere face and is welded to form by a plurality of; The external arc limit 1-1 of fan-shaped tinsel and interior circular arc limit 1-2 are with the circular arc heart, and the external arc avris that is welded to each other tinsel is called packing band exterior arc surface 1-3, and the interior circular arc avris that is welded to each other tinsel is called packing band inner arc surface 1-4; A plurality of space 1-5 that formed by sealing before and after the tinsel cambered surface are arranged between packing band exterior arc surface and inner arc surface; Said cambered surface is the arc-shaped concave 1-6 of the mutual linking that is bent to form up and down along external arc limit and interior circular arc limit by tinsel, and the reverse side of arc-shaped concave is arc convex face 1-7, and said space is that the joining place by the adjacent arc-shaped concave of back row's tinsel rides over the flake type arrangement cavity that welding forms on the front-seat arc convex face; Because to be circular arc fan-shaped for tinsel, so arc-shaped concave is with the fan-shaped tapered body section of circular arc, and arc-shaped concave is in the chord length on the tinsel external arc limit chord length greater than arc-shaped concave circular arc limit in tinsel; Certainly, arc-shaped concave also can be designed as the cylindrical body cross section, and it is fan-shaped that mutual joining place 1-8 is designed to circular arc.
Wherein, described arc-shaped curved surface can be circular arc flexure plane, ellipse arc flexure plane or parabolic arc flexure plane or the like.
A steam turbine is arranged the application example of packing band with flake type; Wherein, the packing band is to be the packing band of 537.4mm to the steam turbine diameter of axle, and what described tinsel used is the thick Hastelloy of 0.5mm (hastelloy-x) sheet; Packing band basis hard-wired packing ring body with it is to be divided into six sections circular arc packing band around turbine shaft; Packing band inner arc surface is 0.6mm apart from the gap of turbine shaft as requested, and the height of packing band is 3mm, and packing has 5 tinsels; The height of packing band tinsel arc-shaped curved surface is 3mm, and the radius of arc of arc-shaped curved surface is 6mm; Be the fan-shaped tinsel of circular arc through what 5 of mould-formings had an arc-shaped curved surface respectively according to above-mentioned parameter; Then through the spot welding order will back row's tinsel the joining place of adjacent arc-shaped concave ride over and weld on the front-seat arc convex face, form at last one have exterior arc surface and inner arc surface, a plurality of tinsel arc-shaped curved surfaces are the packing band of flake type arrangement.
As shown in Figure 3, the arrow 1-9 among the figure has illustrated as the trend of application implementation example gas in the packing band.
Embodiment 2:
A kind of turbine steam seal device embodiment is referring to Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and embodiment 1; As shown in Figure 4, said device comprises the packing ring body that is provided with around turbine spindle 2, and said packing ring body is docked by six circular arc labyrinth ring pieces 3 at least each other to be formed, and its butt joint and suspension system are the known general-purpose technology of using at present.Like Fig. 6 and shown in Figure 7; The internal diameter of said circular arc labyrinth ring piece vertically and at least one pair of labyrinth ring tooth 4 and 5 is set between the turbine spindle; Between the labyrinth ring tooth, be provided with flake type and arrange the packing band; Of embodiment 1, said packing band by a plurality of have the fan-shaped tinsel of multi sphere face before and after mutual superposition be welded to form, the external arc limit and the interior circular arc limit of fan-shaped tinsel are concentric; The external arc avris that is welded to each other tinsel is called packing band exterior arc surface; The interior circular arc avris that is welded to each other tinsel is called packing band inner arc surface, and a plurality of spaces that formed by sealing before and after the tinsel cambered surface are arranged between packing band exterior arc surface and inner arc surface, and said cambered surface is the arc-shaped concave of the mutual linking that is bent to form up and down along external arc limit and interior circular arc limit by tinsel; The reverse side of arc-shaped concave is the arc convex face, and said space is to ride over the flake type that welding forms on the front-seat arc convex face by the back joining place of arranging the adjacent arc-shaped concave of tinsel to arrange cavity.As shown in Figure 7; The exterior arc surface of said packing band is welded on the internal diameter arc surface 3-1 of labyrinth ring piece, and what welding was adopted is the soldering welding procedure same with known honeycomb steam seal band, and the arc-shaped concave of said packing band tinsel is set to meet the vapour side; The gap of packing band inner arc surface and turbine spindle is controlled between 0.30-0.60mm usually; The packing band stops that in the formation of turbine spindle airflow on surface the vapour side of meeting of the band of packing described in the embodiment is a packing band tinsel arc-shaped concave to flowing through in the actual work, and promptly the arc-shaped concave of packing band tinsel is towards the turbine rotor direction; Just arc-shaped concave is towards steam turbine steam high pressure side; Be arc-shaped concave in face of high pressure steam flow 6, crowning is towards the steam flow low voltage side, promptly crowning is back of the body vapour face.
Like Fig. 3 and shown in Figure 7, the packing band has been divided a plurality of cross sections and has been flakey vapor expansion space between original labyrinth ring tooth, increases a plurality of compression-expansion space thereby change high pressure gas flow path, improves sealing effect.The experiment proof; The no wedge angle circular arc cavity of packing band can make steam be at cross section effectively and realize the multistage expansion of damming in the lepidiod air cavity; Effectively consume the steam flow energy, produce damping; Thereby reduce the steam leakage in gap vertically, strengthen the sealing of sealing gland, improve motor, turbine work efficient.
As shown in Figure 8; In order further to bring into play the multistage expansion effect that dams that flake type is arranged the packing band; Can adjust the axis angle 7 of packing band tinsel arc-shaped concave and turbine spindle, the tinsel arc-shaped concave of said packing band and the central axis angle of turbine spindle are more than or equal to 90 degree.Promptly best angular range is to 100 degree from 90 degree.When angle was spent greater than 90, its angle was the central axis angle of said tinsel arc-shaped concave central vertical tangent line and turbine spindle.
Embodiment 3:
A kind of turbine steam seal device preferred embodiment; Referring to Fig. 5, Fig. 9, embodiment 1 and embodiment 2; Present embodiment and embodiment's 2 difference is: the internal diameter of said circular arc labyrinth ring piece is respectively arranged with two pairs of labyrinth ring teeth before and after vertically, is respectively arranged with between the labyrinth ring tooth of two pairs of labyrinth ring teeth like embodiment's 1 described flake type and arranges sealing strip, and the circular arc labyrinth ring piece between the two pairs of labyrinth ring teeth is provided with the circular groove 8 of indent; The opening end both sides of circular groove inwardly are provided with spacing endless belt 8-1; Cross section is installed in the annular groove for the packing inner ring body 9 of " T " shape, and spacing endless belt is used to limit the inner ring body card to turbine spindle, is formed with an air-pressure chamber 8-2 between the back side of packing inner ring body and the arc groove bottom surface; Circular arc labyrinth ring piece is provided with vent 10; Vent is communicated with air-pressure chamber, ring follow-up shell fragment 11 between the packing inner ring body back side and circular groove bottom surface, being provided with, interior ring follow-up shell fragment be used to oppress inner ring body to turbine spindle near; Need to regulate its pressure ring rising shell fragment 12 between the packing inner ring body back side and spacing endless belt, being provided with in the actual work.The air pressure of ring follow-up shell fragment and air-pressure chamber impelled the packing inner ring body in a kind of state of equilibrium in interior ring rising shell fragment was used to resist.
The airflow connection on described vent and turbine spindle surface; It can be provided with notch and be connected to the turbine spindle surface through the surface at circular arc labyrinth ring piece; Vent can be provided with a plurality of; Present embodiment evenly is provided with two at circular arc labyrinth ring piece, to guarantee the inner ring body isostasy.
Shown in Fig. 5 dotted line, the assurance isostasy, said in ring follow-up shell fragment be two, ring follow-up shell fragment is separately positioned on 10 inside degree arc round angle 9-2 places of packing inner ring body back side circular arc both sides end face 9-1 in two.
Ring rising shell fragment can have multiple structure to realize in said; As shown in Figure 9; Ring rising shell fragment was right angle " U " the font spring sheet of an end opening in present embodiment was said; " U " font spring sheet opening side fastens the packing inner ring body back side, and spring sheet opening side two lateral plate end 12-1 withstand spacing endless belt, and the closed end intermediate section of " U " font spring sheet is fixed on the packing inner ring body back side through a pressing plate 13.
The inner ring body of each circular arc labyrinth ring piece of the packing ring body that is provided with around turbine spindle, the gap that under the effect of back rising shell fragment, interior ring rising 0.2-0.3mm. is made inner circular tooth 9-3 and turbine spindle sealing axle journal greatly (0.25-0.40mm).Meeting the vapour side, steam gets into interior ring back from the admission opening of interior ring back side.When interior ring back vapour pressure is enough big (unit is crossed critical back), follow-up shell fragment in ring back in vapour pressure is auxiliary, overcome the active force of rising shell fragment and in making the axle center of hoop turbine spindle be contracted to spacing endless belt place.At this moment inner circular tooth is in the working clearance (0.05-0.10mm) with the sealing axle journal.
The automatic telescopic type sealing gland of inner ring body that said structure forms can be regulated the gap of inner ring body sealing gland and rotatingshaft according to vapor pressure; Avoided the mill that bumps of sealing gland and rotor effectively; And in the unit starting process, sealing gland initiatively can make unit starting steady and smooth more away from rotor; And under unit had an accident state, the vapor pressure reduction can be avoided changeing when coasting operation and sealing gland is bumped mill, thereby effectively anti-spline is from the generation of serious accidents such as bending, " locking ".
Claims (6)
1. a steam turbine is arranged the packing band with flake type; Said packing band by a plurality of have the fan-shaped tinsel of multi sphere face before and after mutual superposition be welded to form; The external arc limit and the interior circular arc limit of fan-shaped tinsel are concentric; The external arc avris that is welded to each other tinsel is called packing band exterior arc surface, and the interior circular arc avris that is welded to each other tinsel is called packing band inner arc surface, and a plurality of spaces that formed by sealing before and after the tinsel cambered surface are arranged between packing band exterior arc surface and inner arc surface; It is characterized in that; Said cambered surface is the arc-shaped concave of the mutual linking that is bent to form up and down along external arc limit and interior circular arc limit by tinsel, and the reverse side of arc-shaped concave is the arc convex face, and said space is that the joining place by the adjacent arc-shaped concave of back row's tinsel rides over the flake type arrangement cavity that welding forms on the front-seat arc convex face.
2. turbine steam seal device; Comprise the packing ring body that is provided with around turbine spindle; Said packing ring body is docked by six circular arc labyrinth ring pieces at least each other to be formed; The internal diameter of said circular arc labyrinth ring piece is characterized in that vertically and be provided with at least one pair of labyrinth ring tooth between the turbine spindle, between the labyrinth ring tooth, is provided with flake type and arranges the packing band; Said packing band by a plurality of have the fan-shaped tinsel of multi sphere face before and after mutual superposition be welded to form; The external arc limit and the interior circular arc limit of fan-shaped tinsel are concentric, and the external arc avris that is welded to each other tinsel is called packing band exterior arc surface, and the interior circular arc avris that is welded to each other tinsel is called packing band inner arc surface; A plurality of spaces that formed by sealing before and after the tinsel cambered surface are arranged between packing band exterior arc surface and inner arc surface; Said cambered surface is the arc-shaped concave of the mutual linking that is bent to form up and down along external arc limit and interior circular arc limit by tinsel, and the reverse side of arc-shaped concave is the arc convex face, and said space is that the joining place by the adjacent arc-shaped concave of back row's tinsel rides over the flake type arrangement cavity that welding forms on the front-seat arc convex face; The exterior arc surface of said packing band is welded on the internal diameter arc surface of labyrinth ring piece, and the arc-shaped concave of said packing band tinsel is set to meet the vapour side.
3. a kind of turbine steam seal device according to claim 2 is characterized in that, the tinsel arc-shaped concave of said packing band and the central axis angle of turbine spindle are more than or equal to 90 degree.
4. a kind of turbine steam seal device according to claim 2; It is characterized in that; The internal diameter of said circular arc labyrinth ring piece is respectively arranged with two pairs of labyrinth ring teeth before and after vertically, and the circular arc labyrinth ring piece between the two pairs of labyrinth ring teeth is provided with the circular groove of indent, and the opening end both sides of circular groove inwardly are provided with spacing endless belt; Cross section is installed in the annular groove for the packing inner ring body of " T " shape; Be formed with an air-pressure chamber between the back side of packing inner ring body and the circular groove bottom surface, circular arc labyrinth ring piece is provided with vent, and vent is communicated with air-pressure chamber; Ring follow-up shell fragment between the packing inner ring body back side and circular groove bottom surface, being provided with, ring rising shell fragment between the packing inner ring body back side and spacing endless belt, being provided with.
5. a kind of turbine steam seal device according to claim 4 is characterized in that, said in ring follow-up shell fragment be two, ring follow-up shell fragment is separately positioned on packing inner ring body back side circular arc two side ends towards 10 interior degree arc round angle places in two.
6. a kind of turbine steam seal device according to claim 4; It is characterized in that; Ring rising shell fragment is right angle " U " the font spring sheet of an end opening in said; " U " font spring sheet opening side fastens the packing inner ring body back side, and spacing endless belt is withstood in spring sheet opening side two lateral plate ends, and the closed end intermediate section of " U " font spring sheet is fixed on the packing inner ring body back side through a pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205343974U CN202370592U (en) | 2011-12-20 | 2011-12-20 | Scale type arrangement steam seal belt for steam turbine and steam seal device for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205343974U CN202370592U (en) | 2011-12-20 | 2011-12-20 | Scale type arrangement steam seal belt for steam turbine and steam seal device for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370592U true CN202370592U (en) | 2012-08-08 |
Family
ID=46594298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205343974U Expired - Fee Related CN202370592U (en) | 2011-12-20 | 2011-12-20 | Scale type arrangement steam seal belt for steam turbine and steam seal device for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370592U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047417A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stable oval sealing structure |
| CN103047418A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stability staggering three-gas wedge sealing structure |
| CN103047421A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stability three-gas wedge sealing structure |
| CN103047420A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stability staggering round sealing structure |
| CN103047419A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stable four air wedge sealing structure |
| CN103075520A (en) * | 2013-01-18 | 2013-05-01 | 沈阳航空航天大学 | Novel highly-stable-dislocation oval sealing structure |
| CN103090012A (en) * | 2013-01-18 | 2013-05-08 | 沈阳航空航天大学 | Novel high stability dislocation four gas wedge seal structure |
| CN105317472A (en) * | 2015-12-01 | 2016-02-10 | 秦皇岛鱼鳞电力设备有限公司 | Elastic sheet for follow-up suspended steam sealing belt of turbine motor and steam sealing structure thereof |
-
2011
- 2011-12-20 CN CN2011205343974U patent/CN202370592U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047417A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stable oval sealing structure |
| CN103047418A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stability staggering three-gas wedge sealing structure |
| CN103047421A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stability three-gas wedge sealing structure |
| CN103047420A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stability staggering round sealing structure |
| CN103047419A (en) * | 2013-01-18 | 2013-04-17 | 沈阳航空航天大学 | Novel high-stable four air wedge sealing structure |
| CN103075520A (en) * | 2013-01-18 | 2013-05-01 | 沈阳航空航天大学 | Novel highly-stable-dislocation oval sealing structure |
| CN103090012A (en) * | 2013-01-18 | 2013-05-08 | 沈阳航空航天大学 | Novel high stability dislocation four gas wedge seal structure |
| CN103047420B (en) * | 2013-01-18 | 2015-04-22 | 沈阳航空航天大学 | Novel high-stability staggering round sealing structure |
| CN103075520B (en) * | 2013-01-18 | 2015-08-26 | 沈阳航空航天大学 | The oval sealing configuration of a kind of Novel high stability dislocation |
| CN105317472A (en) * | 2015-12-01 | 2016-02-10 | 秦皇岛鱼鳞电力设备有限公司 | Elastic sheet for follow-up suspended steam sealing belt of turbine motor and steam sealing structure thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202370592U (en) | Scale type arrangement steam seal belt for steam turbine and steam seal device for steam turbine | |
| KR101509382B1 (en) | Gas turbine having damping clamp | |
| CN102562309B (en) | Changeover portion and gas turbine | |
| CN103967837B (en) | Compressor centrifugal vane wheel of aircraft engine | |
| CN104520536B (en) | Gas turbine | |
| CN112177796B (en) | Lateral sealing device for middle adjusting plate of combined spray pipe | |
| CN105179028B (en) | Support case and rectification leaf grating integral structure after turbine | |
| EP2487336B1 (en) | Exhaust device for a steam turbine module | |
| CN104454031A (en) | Combined seal structure with labyrinth seal structure and brush seal structure | |
| CN103899758B (en) | T-shaped staggered-type labyrinth seal capable of eliminating rotor exciting force | |
| US9562435B2 (en) | Cellular wheel, in particular for a pressure wave supercharger | |
| CN210003336U (en) | megawatt-level supercritical carbon dioxide centripetal turbine sealing structure | |
| CN201991572U (en) | Labyrinth gland with combined main teeth, side teeth and honeycomb belt | |
| CN2937487Y (en) | Floor-mounted setting structure for turbine low pressure inner cylinder | |
| CN201884072U (en) | Axially inclined honeycomb steam seal | |
| CN203035269U (en) | Novel steam seal of steam turbine | |
| CN104863894B (en) | A kind of compressor disk and rotor | |
| CN201943757U (en) | Two-dimensional inclined honeycomb steam seal | |
| CN105201874A (en) | High-pressure-ratio high-flow axial flow compressor | |
| CN108457711A (en) | A kind of new and effective welded type partition board | |
| CN202851091U (en) | Tooth top clearance local resistance-increasing seal tooth type structure | |
| CN203500485U (en) | Inclined hole honeycomb seal | |
| CN210033547U (en) | Energy-saving system of steam turbine in power plant | |
| CN201943758U (en) | Tangentially oblique honeycomb steam seal | |
| CN207261096U (en) | A kind of opposite-flushing type whirlpool rear exhaust apparatus |
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: 20120808 Termination date: 20171220 |