CN206860238U - A kind of gas turbine - Google Patents
A kind of gas turbine Download PDFInfo
- Publication number
- CN206860238U CN206860238U CN201720457592.9U CN201720457592U CN206860238U CN 206860238 U CN206860238 U CN 206860238U CN 201720457592 U CN201720457592 U CN 201720457592U CN 206860238 U CN206860238 U CN 206860238U
- Authority
- CN
- China
- Prior art keywords
- spiral case
- ring
- gas turbine
- boss
- inlet channel
- 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.)
- Active
Links
Abstract
Gas turbine technology field is the utility model is related to, discloses a kind of gas turbine, the gas turbine includes combustion chamber, spiral case and annular boss；Wherein, the inlet channel of spiral case is sheathed on the outlet passageway of combustion chamber, and can be slided relative to outlet passageway；Annular boss is set around the inlet channel of spiral case and the outlet passageway of combustion chamber；The gas turbine also includes：First positive stop lug boss, including the first ring-type limiting section set between annular boss and the inlet channel of spiral case and around inlet channel；Second positive stop lug boss, including the second ring-type limiting section set between annular boss and the inlet channel of spiral case and around inlet channel；Certain space be present between second ring-type limiting section and the first ring-type limiting section；The high temperature sealing material being filled in the space that annular boss, inlet channel, the first ring-type limiting section and the second ring-type limiting section are surrounded.Above-mentioned gas turbine can avoid high-temperature flue gas from entering in spiral case casing.
Description
Technical field
Gas turbine technology field is the utility model is related to, more particularly to a kind of gas turbine.
Background technology
Fig. 1 is a kind of part-structure schematic diagram of miniature gas turbine of the prior art；As shown in figure 1, prior art
In, miniature gas turbine typically mainly includes the knot such as compressor, combustion chamber 100, spiral case 200, spiral case casing 400 and turbine
Structure, wherein, air (as shown in dotted line with the arrow in Fig. 1) enters spiral case casing 400 after compressor pressure, and can be from spiral case
The outlet stream of casing 400 to combustion chamber 100, for fuel mixed combustion；The HTHP that burning is formed in combustion chamber 100
Combustion gas (as shown in chain-dotted line with the arrow in Fig. 1) can enter in spiral case 200 and can be exported by spiral case 200 so as to promote
Turbine is done work.As shown in Figure 1, it is contemplated that the influence of high-temperature expansion, the flue gas outlet passageway 101 and spiral case of combustion chamber 100
200 inlet channel 201 is typically used and is slidably socketed, i.e. the inlet channel of the outlet passageway 101 of combustion chamber 100 and spiral case 200
Certain fit-up gap is left between 201；Although during high-temperature flue gas flows into spiral case 200 from combustion chamber 100, burning
The outlet passageway 101 of room 100 can by high-temperature expansion so that the gap diminishes, but still easily occur high-temperature flue gas from this
The phenomenon of gap location leakage, as high-temperature flue gas can from the gap inlet channel of the reverse osmosis to annular boss 300 and spiral case 200
Space between 201, because opening edge of the annular boss 300 along spiral case casing 400 is set along 401, and then high-temperature flue gas can be with
Enter along the space between annular boss 300 and the inlet channel 201 of spiral case 200 in spiral case casing 400, so as to cause spiral case machine
Temperature raises in casket 400, even results in spiral case casing 400 and damages.
Utility model content
The utility model discloses a kind of gas turbine, for improving what is connected between the combustion chamber of gas turbine and spiral case
Sealing, with avoid high-temperature flue gas enter spiral case casing in.
To reach above-mentioned purpose, the utility model provides following technical scheme：
A kind of gas turbine, including combustion chamber, spiral case and annular boss；Wherein, the inlet channel of the spiral case is arranged
In on the outlet passageway of the combustion chamber, and can be slided relative to the outlet passageway；The annular boss surrounds the spiral case
Inlet channel and the outlet passageway of the combustion chamber set, for supporting going out for the inlet channel of the spiral case and combustion chamber
Gas passage；The gas turbine also includes：
First positive stop lug boss, including between the inlet channel of the annular boss and the spiral case and around described
The first ring-type limiting section that inlet channel is set；
Second positive stop lug boss, including between the inlet channel of the annular boss and the spiral case and around described
The second ring-type limiting section that inlet channel is set；Along the direction of axis line of the inlet channel, the second ring-type limiting section and
Certain space be present between the first ring-type limiting section；
It is filled in the sky that the annular boss, inlet channel, the first ring-type limiting section and the second ring-type limiting section are surrounded
Interior high temperature sealing material.
In above-mentioned gas turbine, the first ring-type limiting section and the second ring are provided between annular boss and the inlet channel of spiral case
Shape limiting section, the first ring-type limiting section and the second ring-type limiting section can be common with the inlet channel of annular boss and spiral case
Annular space is surrounded, and high temperature sealing material is also filled with the annular space, therefore, the air inlet of annular boss and spiral case
Space between passage can be sealed by the high temperature sealing material；And then when high-temperature flue gas is from the outlet passageway of combustion chamber
When being leaked in the gap between the inlet channel of spiral case, the sky between annular boss and the inlet channel of spiral case can not be passed through
Gap enters in spiral case casing；Therefore, the sealing connected between the combustion chamber of above-mentioned gas turbine and spiral case is preferable, can avoid
High-temperature flue gas enters in spiral case casing.
Preferably, first positive stop lug boss is installed on the annular boss by connector；And/or described second
Positive stop lug boss is installed on the annular boss by connector.
Preferably, the connector is screw.
Preferably, first positive stop lug boss is located at second positive stop lug boss close to the side of combustion chamber；Described first
Positive stop lug boss also includes the installation portion to extend along the annular boss close to the table top of combustor side and is connected to the peace
Extension between dress portion and the first ring-type limiting section, wherein, the installation portion is installed on the ring-type by connector
On the table top of boss.
Preferably, the installation portion is the loop configuration set along the inside edge of the annular boss table top；It is described to prolong
Exhibition portion sets for the outlet passageway between the outlet passageway of the annular boss and the combustion chamber and around the combustion chamber
The loop configuration put.
Preferably, the table top of the annular boss includes the one-level ring-shaped step set along the annular boss inside edge
Face, the installation portion of first positive stop lug boss are covered on the step surface and are installed on by connector on the step surface.
Preferably, the annular step surface is provided with annular groove, and refractory seals material is filled with the annular groove
Material.
Preferably, second positive stop lug boss is welded on the annular boss.
Preferably, the gas turbine also includes the spiral case casing for being sheathed on the scroll outer, and the spiral case casing is set
There is the opening that the inlet channel for the spiral case passes through, edge of the annular boss along the spiral case opening is set.
Preferably, the high temperature sealing material is graphite paper.
Brief description of the drawings
Fig. 1 is a kind of part-structure schematic diagram of gas turbine of the prior art；
Fig. 2 is a kind of part-structure schematic diagram for gas turbine that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
It refer to Fig. 2.
As shown in Fig. 2 a kind of gas turbine that the utility model embodiment provides, including combustion chamber 1, spiral case 2, Yi Jihuan
Shape boss 3；Wherein, the inlet channel 20 of spiral case 2 is sheathed on the outlet passageway 10 of combustion chamber 1, and can be led to relative to the outlet
Slide in road 10；Annular boss 3 sets around the inlet channel 20 of spiral case 2 and the outlet passageway 10 of combustion chamber 1, fired for support
Burn the outlet passageway 10 of room 1 and the inlet channel 20 of spiral case 2；The gas turbine also includes：
First positive stop lug boss 4, first positive stop lug boss 4 include the first ring-type limiting section 41, the first ring-type limiting section 41
Set between annular boss 3 and the inlet channel 20 of spiral case 2 and around the inlet channel 20 of spiral case 2；
Second positive stop lug boss 5, second positive stop lug boss 5 include the second ring-type limiting section 51, the second ring-type limiting section 51
Set between annular boss 3 and the inlet channel 20 of spiral case 2 and around the inlet channel 20 of spiral case 2；Specifically, along snail
On the axial line o directions of the inlet channel 20 of shell 2, the second ring-type limiting section 51 it is adjacent with the first ring-type limiting section 41 and each other it
Between certain space be present；
High temperature sealing material 6, it is filled in annular boss 3, inlet channel 20, the first ring-type limiting section 41 and the second ring-type
In the annular space that limiting section 51 is surrounded.
In above-mentioned gas turbine, between the inlet channel 20 of annular boss 3 and spiral case 2 be provided with the first ring-type limiting section 41 and
Second ring-type limiting section 51, the first ring-type limiting section 41 and the second ring-type limiting section 51 can be with annular boss 3 and spiral cases 2
Inlet channel 20 surround annular space jointly, and high temperature sealing material 6 is also filled with the annular space, therefore, ring-type
Space between boss 3 and the inlet channel 20 of spiral case 2 can be sealed by the high temperature sealing material 6；And then work as high temperature
, can not be convex by ring-type when flue gas flows out in the gap between the outlet passageway 10 of combustion chamber 1 and the inlet channel 20 of spiral case 2
Space between platform 3 and the inlet channel 20 of spiral case 2 enters in spiral case casing 7；Therefore, the combustion chamber 1 of above-mentioned gas turbine
The sealing connected between spiral case 2 is preferable, and high-temperature flue gas can be avoided to enter in spiral case casing 7.
As shown in Fig. 2 in a kind of specific embodiment, it is convex that the first positive stop lug boss 4 can be installed on ring-type by connector 8
On platform 3；Specifically, the connector 8 can be screw.
First positive stop lug boss 4 is installed on annular boss 3 by connector 8, then the first positive stop lug boss 4 can be convex from ring-type
Disassembled on platform 3, and then the high temperature sealing material 6 that can be conveniently replaceable in annular space.
As shown in Fig. 2 on the basis of above-described embodiment, in a kind of specific embodiment, the second positive stop lug boss 5 is positioned at the
One positive stop lug boss 4 is close to the side of spiral case 2；That is, the first positive stop lug boss 4 is located at the second positive stop lug boss 5 close to the one of combustion chamber 1
Side.
As shown in Fig. 2 further, except the first ring-type limiting section 41 set around inlet channel 20, first is spacing
The installation portion 42 and be connected to installation that boss 4 can also extend including the table top along annular boss 3 close to the side of combustion chamber 1
Extension 43 between the ring-type limiting section 41 of portion 42 and first；Wherein, it is convex can be installed on ring-type by connector 8 for installation portion 42
On the table top of platform 3.
Table top of the installation portion 42 that first positive stop lug boss 4 is provided with along annular boss 3 close to the side of combustion chamber 1 extends and led to
Cross connector 8 to be installed on the table top of the annular boss 3, so as on the one hand realize and be installed on whole first positive stop lug boss 4
On annular boss 3, the annexation of the first positive stop lug boss 4 and annular boss 3 on the other hand can also be conveniently released and by first
Positive stop lug boss 4 is separated from annular boss 3, so that the replacing of high temperature sealing material 6 is more convenient.
As shown in Fig. 2 on the basis of above-described embodiment, in a kind of specific embodiment, installation portion 42 can be along ring
The loop configuration that shape boss 3 is set close to the edge of the side table top of combustion chamber 1；And extension 43 can be positioned at annular boss 3
The loop configuration that outlet passageway 10 between the outlet passageway 10 of combustion chamber 1 and around combustion chamber 1 is set；And then whole
One positive stop lug boss 4 can be the loop configuration of an integral type；Such a structure is easy to design to process, and reliability is higher；And
And be arranged at due to annular extension 43 in the annular space between annular boss 3 and the outlet passageway 10 of combustion chamber 1, and then,
The high-temperature flue gas from space leakage can also be reduced, so as to which that improves complete machine goes out work(power.
As shown in Fig. 2 on the basis of above-described embodiment, in a kind of specific embodiment, annular boss 3 is close to combustion chamber
The table top of 1 side includes the step surface of the one-level annular set along the inside edge of annular boss 3, the installation of the first positive stop lug boss 4
Portion 42 is covered on the step surface and is installed on by connector 8 on the step surface.One is set in the inside edge of annular boss 3
The installation portion 42 of first positive stop lug boss 4 is simultaneously correspondingly arranged on the step surface of the step by level step, can be in order in the first limit
Position boss 4 is positioned during being installed on annular boss 3, and can improve the disguise and reliability of installation.
As shown in Fig. 2 on the basis of above-described embodiment, in a kind of specific embodiment, the ring-shaped step of annular boss 3
Annular groove 30 can be provided with face, high temperature sealing material 6 is filled with the annular groove 30.
By annular step surface upper setting annular groove 30 and wherein fill high temperature sealing material 6, can will
Clearance seal between first positive stop lug boss 4 and annular boss 3 gets up, so can avoid flue gas from the first positive stop lug boss 4 with
Clearance leakage between annular boss 3, so as to further improve the sealing of combustion chamber 1 and the junction of spiral case 2.
As shown in Fig. 2 on the basis of the various embodiments described above, in a kind of specific embodiment, the second positive stop lug boss 5 can be with
It is to be directly welded on annular boss 3, and the second positive stop lug boss 5 can be only including this part knot of the second ring-type limiting section 51
Structure；Certainly, the second positive stop lug boss 5 can also be installed on by connector 8 on annular boss 3, also, the second positive stop lug boss 5
It can also also include extending to part-structure of the annular boss 3 on the side table top of spiral case 2 from the second ring-type limiting section 51, and
It is installed on by the part-structure on annular boss 3.
As shown in Fig. 2 on the basis of the various embodiments described above, in a kind of specific embodiment, the utility model embodiment
Gas turbine also include being sheathed on spiral case casing 7 spiral case 2 outside, the spiral case casing 7 is provided with the inlet channel 20 for supplying spiral case 2
The opening passed through, specifically, edge 71 of the annular boss 3 along the opening are set.
As shown in Fig. 2 on the basis of the various embodiments described above, in a kind of specific embodiment, the utility model embodiment
Gas turbine in, high temperature sealing material 6 be preferably graphite paper.
Specifically, as shown in Fig. 2 because the inlet channel 20 of spiral case 2 is normally at the top of spiral case 2, i.e. the utility model
The first positive stop lug boss 4 in embodiment is located at the top of the second positive stop lug boss 5, therefore, can be by graphite when installing graphite paper
Letterweight shortens block into and is placed on the second ring-type limiting section 51 of the second positive stop lug boss 5, and the first ring-type of the first positive stop lug boss 4
Limiting section 41 then can provide thrust from top to graphite paper, and the inlet channel 20 of annular boss 3 and spiral case 2 is then from both sides pair
Graphite paper progress is spacing, also, when high-temperature flue gas flows through the inlet channel 20 of spiral case 2, the inlet channel 20 of spiral case 2 can be heated
Expansion, so that graphite paper is compacted from both sides, and then realize to gap between annular boss 3 and the inlet channel 20 of spiral case 2
Sealing；Because graphite paper has certain elastic deformation amount, therefore, it can play sealing effectiveness, again will not be to remaining group
Part causes to damage.
Experimental test result shows that in the operating condition, its spiral case casing temperature-averaging exists the gas turbine of prior art
More than 350 DEG C, and it is often accompanied by ascendant trend；And the gas turbine that the utility model embodiment provides is in the operating condition, its snail
Shell casing temperature is almost steadily in the long term at 220 DEG C or so, and temperature is relatively low and stability is preferable；Therefore, the utility model embodiment
The gas turbine of offer, the stability of its spiral case casing preferably, last a long time；Also, it is higher to go out work(power.
Obviously, those skilled in the art can to the utility model embodiment carry out it is various change and modification without departing from
Spirit and scope of the present utility model.So, if these modifications and variations of the present utility model belong to the utility model right
It is required that and its within the scope of equivalent technologies, then the utility model be also intended to comprising these change and modification including.
Claims (10)
1. a kind of gas turbine, including combustion chamber, spiral case and annular boss；Wherein, the inlet channel of the spiral case is sheathed on
On the outlet passageway of the combustion chamber, and it can be slided relative to the outlet passageway；The annular boss is around the spiral case
Inlet channel and the outlet of the setting of the outlet passageway of the combustion chamber, the inlet channel for the support spiral case and combustion chamber
Passage；Characterized in that, the gas turbine also includes：
First positive stop lug boss, including between the inlet channel of the annular boss and the spiral case and around the air inlet
The first ring-type limiting section that passage is set；
Second positive stop lug boss, including between the inlet channel of the annular boss and the spiral case and around the air inlet
The second ring-type limiting section that passage is set；Along the direction of axis line of the inlet channel, the second ring-type limiting section and described
Certain space be present between first ring-type limiting section；
It is filled in the space that the annular boss, inlet channel, the first ring-type limiting section and the second ring-type limiting section are surrounded
High temperature sealing material.
2. gas turbine according to claim 1, it is characterised in that first positive stop lug boss is installed on by connector
On the annular boss；And/or second positive stop lug boss is installed on the annular boss by connector.
3. gas turbine according to claim 2, it is characterised in that the connector is screw.
4. gas turbine according to claim 1, it is characterised in that first positive stop lug boss is spacing positioned at described second
Boss is close to the side of combustion chamber；
First positive stop lug boss also include along the annular boss close to combustor side table top extend installation portion and
The extension being connected between the installation portion and the first ring-type limiting section, wherein, the installation portion is pacified by connector
On table top loaded on the annular boss.
5. gas turbine according to claim 4, it is characterised in that the installation portion is along the annular boss table top
The loop configuration that inside edge is set；The extension be positioned at the annular boss Yu the combustion chamber outlet passageway it
Between and around the combustion chamber outlet passageway set loop configuration.
6. gas turbine according to claim 5, it is characterised in that the table top of the annular boss is included along the ring-type
The one-level annular step surface that boss inside edge is set, the installation portion of first positive stop lug boss is covered on the step surface,
And it is installed on by connector on the step surface.
7. gas turbine according to claim 6, it is characterised in that the annular step surface is provided with annular groove, institute
State in annular groove and be filled with high temperature sealing material.
8. gas turbine according to claim 4, it is characterised in that it is convex that second positive stop lug boss is welded in the ring-type
On platform.
9. gas turbine according to claim 1, it is characterised in that also include the spiral case machine for being sheathed on the scroll outer
Casket, the spiral case casing are provided with the opening that passes through of inlet channel for the spiral case, and the annular boss is along the spiral case opening
Edge set.
10. according to the gas turbine described in any one of claim 1~9, it is characterised in that the high temperature sealing material is stone
Black paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720457592.9U CN206860238U (en) | 2017-04-27 | 2017-04-27 | A kind of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720457592.9U CN206860238U (en) | 2017-04-27 | 2017-04-27 | A kind of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860238U true CN206860238U (en) | 2018-01-09 |
Family
ID=60822970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720457592.9U Active CN206860238U (en) | 2017-04-27 | 2017-04-27 | A kind of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860238U (en) |
-
2017
- 2017-04-27 CN CN201720457592.9U patent/CN206860238U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5543132B2 (en) | Component arrangement structure, combustor device and gas turbine | |
| CA2890425C (en) | Multiple ventilated rails for sealing of combustor heat shields | |
| CN104727862B (en) | Sealing system for gas turbine | |
| US8820090B2 (en) | Method for operating a gas turbine engine including a combustor shell air recirculation system | |
| US20150027128A1 (en) | Heat-shield element for a compressor-air bypass around the combustion chamber | |
| JP2009287559A6 (en) | Component arrangement structure, combustor device and gas turbine | |
| KR102063169B1 (en) | Fuel nozzle assembly and combustor and gas turbine having the same | |
| JP2016502014A5 (en) | ||
| CN103174468B (en) | The cloth sealing member strengthened | |
| US9200527B2 (en) | Systems, methods, and apparatus for a turbine interstage rim seal | |
| CN103362563A (en) | Turbine shroud assembly and method of forming | |
| CN104169545A (en) | Seal member, turbine, and gas turbine | |
| CN104781506A (en) | Air injection system for cooling rotor in gas turbine engine and method of cooling such rotor | |
| CN103362652A (en) | Interstage seal system and system comprising same | |
| CN107076418A (en) | Bypass type heat shield element | |
| CN105531545A (en) | Wedge-shaped ceramic heat shield of a gas turbine combustion chamber | |
| EP2759677A1 (en) | Gas turbine | |
| CN206860238U (en) | A kind of gas turbine | |
| US20110162377A1 (en) | Turbomachine nozzle | |
| US10138746B2 (en) | Gas turbine engine flow control device | |
| CN107013256A (en) | A kind of gas turbine | |
| CN103307634A (en) | Combustor and method of reducing thermal stresses in the combustor | |
| KR20150002697A (en) | Gas turbine combustor | |
| JP6824685B2 (en) | Burner device, cooling medium control method for burner device | |
| US8936431B2 (en) | Shroud for a rotary machine and methods of assembling same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201406 228 yongyang Road, Yang Wang Industrial Park, South Bridge Town, Fengxian District, Shanghai Patentee after: New Austrian energy power technology (Shanghai) Co., Ltd. Address before: 201406 228 yongyang Road, Yang Wang Industrial Park, South Bridge Town, Fengxian District, Shanghai Patentee before: Shanghai wisdom energy equipment Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |