CN107702148A - The toroidal combustion chamber and gas turbine of a kind of gas turbine - Google Patents
The toroidal combustion chamber and gas turbine of a kind of gas turbine Download PDFInfo
- Publication number
- CN107702148A CN107702148A CN201711184638.5A CN201711184638A CN107702148A CN 107702148 A CN107702148 A CN 107702148A CN 201711184638 A CN201711184638 A CN 201711184638A CN 107702148 A CN107702148 A CN 107702148A
- Authority
- CN
- China
- Prior art keywords
- air
- inner liner
- burner inner
- combustion chamber
- outer casing
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
- F23R3/52—Toroidal combustion chambers
Abstract
The present invention relates to gas turbine field, disclose the toroidal combustion chamber and gas turbine of a kind of gas turbine, the toroidal combustion chamber includes interior casing and the outer casing being sleeved on interior casing, the burner inner liner of annular is provided between interior casing and outer casing, the gap between burner inner liner and interior casing, outer casing is used for air circulation；Also include multiple pre-mixing apparatus, circumferentially, each pre-mixing apparatus includes air conducting cylinder to multiple pre-mixing apparatus, and air conducting cylinder connects with outer casing；Air conducting cylinder interior edge is axially arranged with premix pipeline, and premix pipeline connects with air conducting cylinder and burner inner liner respectively；The one end of air conducting cylinder away from outer casing is fixed with nozzle, and the head of nozzle is stretched into premix pipeline, and premix pipeline is used for the mixture of delivery of fuel gas and air into burner inner liner.
Description
Technical field
The present invention relates to the toroidal combustion chamber and gas turbine in gas turbine field, more particularly to a kind of gas turbine.
Background technology
Miniature gas turbine has the features such as compact-sized, in light weight, maintenance cost is low, can be widely applied to distributed hair
Electrical domain.Toroidal combustion chamber is the equipment commonly used in gas turbine, can effectively shorten the overall dimensions of gas turbine.Existing skill
In art, nozzle is generally arranged in burner inner liner, and fuel mixes after nozzle sprays in burner inner liner with air, due to fuel with
Air mixing is uneven, and local temperature is too high when causing fuel combustion, and NOx yield with formation speed with ignition temperature
Rise is exponentially increased so that NOx content is higher in combustion product；In addition, nozzle service life affected by the high temperature is relatively low.
The content of the invention
The present invention provides a kind of toroidal combustion chamber and gas turbine of gas turbine, avoids generation in burner inner liner local high
Temperature, NOx discharge is reduced, meanwhile, exempt from the components such as nozzle affected by the high temperature.
The embodiments of the invention provide a kind of toroidal combustion chamber of gas turbine, the toroidal combustion chamber include interior casing and
The outer casing being sleeved on the interior casing, the burner inner liner of annular, the fire are provided between the interior casing and the outer casing
Gap between flame cylinder and the interior casing, the outer casing forms the air duct for air circulation；
Also include multiple pre-mixing apparatus, each pre-mixing apparatus includes air conducting cylinder, the air conducting cylinder with it is described outer
Casing connects, and is circumferentially distributed along the side wall of the outer casing；Premix pipeline, the premix are provided with the air conducting cylinder
Pipeline connects with the burner inner liner, and the air conducting cylinder is used to the air in the air duct being oriented to the premix pipeline
It is interior；
The one end of the air conducting cylinder away from the outer casing is fixed with nozzle, and the head of the nozzle stretch into it is described
Premix in pipeline, the premix pipeline is used for the mixture of delivery of fuel gas and air into the burner inner liner.
In above-described embodiment, air conducting chamber is formed between air conducting cylinder and premix pipeline, is formed in premix pipeline pre-
Mixed chamber, air conducting chamber connect with premix chamber, when gap of the air between burner inner liner and interior casing, outer casing is flowed, by sky
Gas diversion cavity enters premix chamber, and enters burner inner liner after being mixed with the fuel that nozzle sprays in premix chamber, avoids due to fire
Flame cylinder fuel and air are uneven and the problem of local temperature is too high when causing burning, and then reduce NOx growing amount；Separately
Outside, whole pre-mixing apparatus is located at outside burner inner liner so that the part such as nozzle exempt from it is affected by the high temperature.
Preferably, the air conducting cylinder sets or counterclockwise set along clockwise direction.
In a specific embodiment, baffle plate is provided between the interior casing and the outer casing, and away from described
One end of baffle plate is provided with air intake；
The baffle plate is provided with the through hole of annular, and the burner inner liner is located in the through hole, and the burner inner liner exposes
One end of the baffle plate is provided with exhanst gas outlet.
Preferably, the side wall of the burner inner liner is provided with multiple combustion-supporting holes, and the multiple combustion-supporting hole is circumferentially, described
Multiple combustion-supporting holes are used to supplement air for the burner inner liner to promote the burning of fuel.
Preferably, the burner inner liner is additionally provided with multiple blending holes in the side wall of the exhanst gas outlet, the multiple to mix
Circumferentially, the multiple blending hole is used to supplement air for the burner inner liner to adjust the temperature of exiting flue gas in mixed hole.
Preferably, the number of the pre-mixing apparatus is four.
Preferably, the nozzle is simple nozzle.
The embodiment of the present invention additionally provides a kind of gas turbine, including the toroidal combustion chamber described in any of the above-described.The ring
In shape combustion chamber, it can be prevented by setting pre-mixing apparatus fuel before burner inner liner is entered with air partial pre-mix
Local temperature is too high in burner inner liner；In addition, pre-mixing apparatus is located at outside burner inner liner, it is affected by the high temperature to avoid the parts such as nozzle,
Extend service life.
Brief description of the drawings
Fig. 1 is the axonometric drawing of toroidal combustion chamber provided in an embodiment of the present invention；
Fig. 2 is the side view of toroidal combustion chamber provided in an embodiment of the present invention；
Fig. 3 is the A-A views of toroidal combustion chamber in Fig. 2；
Fig. 4 is the B-B views of toroidal combustion chamber in Fig. 2.
Reference：
The outer casings of casing 20- in 10-
30- burner inner liner 31- combustion-supporting hole 32- blending hole 33- exhanst gas outlets
40- pre-mixing apparatus 41- air conducting cylinders 42- premixes pipeline 43- nozzles
50- baffle plate 60- air intakes
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, the present invention is made below in conjunction with the accompanying drawings into one
Step describes in detail, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are obtained all under the premise of creative work is not made
Other embodiment, belong to the scope of protection of the invention.
The embodiments of the invention provide a kind of toroidal combustion chamber of gas turbine, the toroidal combustion chamber include interior casing and
The outer casing being sleeved on interior casing, the burner inner liner of annular, burner inner liner and interior casing, outer machine are provided between interior casing and outer casing
Gap between casket forms the air duct for air circulation；Also include multiple pre-mixing apparatus, wherein,
Each pre-mixing apparatus includes air conducting cylinder, and air conducting cylinder connects with outer casing, and is in along the side wall of outer casing
Circle distribution；Premix pipeline is provided with air conducting cylinder, premix pipeline connects with burner inner liner, and air conducting cylinder is used to lead to air
Air in road is oriented in premix pipeline；
The one end of air conducting cylinder away from outer casing is fixed with nozzle, and the head of nozzle is stretched into premix pipeline, premix
Pipeline is used for the mixture that fuel and air are conveyed into burner inner liner.
In above-described embodiment, air conducting chamber is formed between air conducting cylinder and premix pipeline, is formed in premix pipeline pre-
Mixed chamber, air conducting chamber connect with premix chamber, when gap of the air between burner inner liner and interior casing, outer casing is flowed, by sky
Gas diversion cavity enters premix chamber, and enters burner inner liner after being mixed with the fuel that nozzle sprays in premix chamber, avoids due to fire
Flame cylinder fuel and air are uneven and the problem of local temperature is too high when causing burning, and then reduce NOx growing amount；Separately
Outside, whole pre-mixing apparatus is located at outside burner inner liner so that the part such as nozzle exempt from it is affected by the high temperature.
In order to more be apparent from the structure of the toroidal combustion chamber of gas turbine provided in an embodiment of the present invention, in conjunction with
Accompanying drawing is described in detail.
Include interior casing 10 with reference to figure 1, Fig. 4, the toroidal combustion chamber of the gas turbine in the lump and be sleeved on interior casing 10
On outer casing 20, the burner inner liner 30 of annular, burner inner liner 30 and interior casing 10, outer machine are provided between interior casing 10 and outer casing 20
Gap between casket 20 forms the air duct for air circulation.Specifically, interior casing 10 is set with outer casing 20 into cylindrical shape
Put, and outer casing 20 is sleeved on interior casing 10, so, the cavity of annular is formd between interior casing 10 and outer casing 20,
Accordingly, burner inner liner 30 is annular burner inner liner, also, burner inner liner 30 is set in the cavity.During specific connection, interior casing 10
Baffle plate 50 is provided between outer casing 20, baffle plate 50 is provided with the through hole of annular, and burner inner liner 30 is located in through hole, and burner inner liner
30 one end for exposing baffle plate 50 are provided with exhanst gas outlet 33；In one end away from baffle plate 50, between interior casing 10 and outer casing 20 also
Provided with air intake 60, air intake 60 also circularizes setting, and outside air is by the air inlet passage of air intake 60, and in sky
Flowed in gas passage along the side wall of burner inner liner 30 to the one end of baffle plate 50, so, reduce the extra circulation path of air, reduce
The pressure loss, improve the complete machine thermal efficiency.
Also include multiple pre-mixing apparatus 40 with reference to figure 1, Fig. 2, Fig. 3, the toroidal combustion chamber in the lump, each pre-mixing apparatus 40 wraps
Air conducting cylinder 41 is included, air conducting cylinder 41 is connected with outer casing 20 and is circumferentially distributed along the side wall of outer casing 20, also, empty
Premix pipeline 42 is provided with conductance flow cartridge 41, premix pipeline 42 connects with burner inner liner 30, and air conducting cylinder 41 is used to lead to air
Air in road is oriented in premix pipeline 42.So, air conducting chamber is formed between air conducting cylinder 41 and premix pipeline 42,
Premix and premix chamber is formed in pipeline 42, premix chamber is connected with air conducting chamber, and outside air is led to by the air inlet of air intake 60
Behind road, being flowed along the side wall of burner inner liner 30 to the one end of baffle plate 50, a portion air is entered in premix chamber by air conducting chamber,
And burner inner liner 30 is entered by premix chamber.In addition, the one end of air conducting cylinder 41 away from outer casing 20 is fixed with nozzle 43, nozzle 43
Using simple nozzle, simple nozzle is simple in construction, and cost is low, is easy to repair, or, nozzle 43 can also use it
The nozzle of his type；The head of nozzle 43 is stretched into premix pipeline 42, and the spray fuel into premix pipeline 42, premixes pipeline 42
For the mixture of combustion gas and air to be transported in burner inner liner 30, i.e., when outside air enters premix chamber by air conducting chamber
When, the fuel that nozzle 43 projects first is mixed with air in premix chamber, subsequently into burner inner liner 30, being so advantageous to fire
The burning of material, avoid due to the fuel of burner inner liner 30 and air it is uneven and cause burning when local temperature it is too high the problem of,
And then reduce NOx growing amount；In addition, whole pre-mixing apparatus 40 is located at outside burner inner liner 30, so that the grade part of nozzle 43 is exempted from
It is affected by the high temperature.
During specific setting, air conducting cylinder 41 sets or counterclockwise set along clockwise direction, as shown in figure 3, should
Toroidal combustion chamber includes four pre-mixing apparatus 40, wherein, air conducting cylinder 41 is set along clockwise direction, more specifically, often
In individual air conducting cylinder 41, premix pipeline 42 is along the tangentially-arranged of burner inner liner 30, the mixing for being so easy to fuel to be formed with air
Flowing of the air-flow in burner inner liner 30.In order to supplement air to burner inner liner 30 to promote the burning of fuel, the side wall of burner inner liner 30
Multiple combustion-supporting holes 31 are provided with, circumferentially, outside air can enter burner inner liner 30 to these combustion-supporting holes 31 by combustion-supporting hole 31
It is interior.In addition, burner inner liner 30 is additionally provided with multiple blending holes 32 in the side wall of exhanst gas outlet 33, blending hole 32 is also circumferentially divided
Cloth, blending hole 32 are used to supplement air for burner inner liner 30 to adjust the temperature of exiting flue gas.
By above description as can be seen that by setting pre-mixing apparatus 40, on the one hand fuel enters fire in the present embodiment
It can be pre-mixed before flame cylinder 30 with air, avoid because the fuel of burner inner liner 30 is uneven with air and cause to burn
When local temperature it is too high the problem of, and then reduce NOx growing amount；On the other hand, because whole pre-mixing apparatus 40 is arranged on
Outside burner inner liner 30 so that the grade part of nozzle 43 exempt from it is affected by the high temperature.
The embodiment of the present invention additionally provides a kind of gas turbine, and the gas turbine includes any of the above-described kind of toroidal combustion chamber,
The toroidal combustion chamber is compact-sized, effectively reduces the overall dimensions of gas turbine, also, is provided with the toroidal combustion chamber pre-
Mixing device 40 so that fuel can be pre-mixed before burner inner liner 30 is entered with air, is avoided fuel and is produced in burning
Raw localized hyperthermia, so as to reduce NOx growing amount；In addition, pre-mixing apparatus 40 is arranged on burner inner liner in the toroidal combustion chamber
Outside 30 so that the grade part of nozzle 43 exempt from it is affected by the high temperature.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
1. a kind of toroidal combustion chamber of gas turbine, including interior casing and the outer casing that is sleeved on the interior casing, it is described
The burner inner liner of annular is provided between interior casing and the outer casing, between the burner inner liner and the interior casing, the outer casing
Gap form air duct for air circulation；Characterized in that, also include multiple pre-mixing apparatus, each pre-mixing apparatus bag
Air conducting cylinder is included, the air conducting cylinder connects with the outer casing, and is circumferentially distributed along the side wall of the outer casing；Institute
State and premix pipeline is provided with air conducting cylinder, the premix pipeline connects with the burner inner liner, and the air conducting cylinder is used for will
Air in the air duct is oriented in the premix pipeline；
The one end of the air conducting cylinder away from the outer casing is further fixed on nozzle, and the head of the nozzle stretch into it is described pre-
In mixed pipeline, the premix pipeline is used for the mixture that fuel and air are conveyed into the burner inner liner.
2. toroidal combustion chamber as claimed in claim 1, it is characterised in that the air conducting cylinder set along clockwise direction or
Counterclockwise set.
3. toroidal combustion chamber as claimed in claim 1, it is characterised in that gear is provided between the interior casing and the outer casing
Plate, and it is provided with air intake in one end away from the baffle plate；
The baffle plate is provided with the through hole of annular, and the burner inner liner is located in the through hole, and the burner inner liner expose it is described
One end of baffle plate is provided with exhanst gas outlet.
4. toroidal combustion chamber as claimed in claim 3, it is characterised in that the side wall of the burner inner liner is provided with multiple combustion-supporting
Hole, circumferentially, the multiple combustion-supporting hole is used to supplement air for the burner inner liner to promote fuel the multiple combustion-supporting hole
Burning.
5. toroidal combustion chamber as claimed in claim 4, it is characterised in that side wall of the burner inner liner close to the exhanst gas outlet
On be additionally provided with multiple blending holes, circumferentially, the multiple blending hole is used to mend for the burner inner liner the multiple blending hole
Air is filled to adjust the temperature of exiting flue gas.
6. toroidal combustion chamber as claimed in claim 1, it is characterised in that the number of the pre-mixing apparatus is four.
7. the toroidal combustion chamber as described in any one of claim 1~6, it is characterised in that the nozzle is simple nozzle.
8. a kind of gas turbine, it is characterised in that including the toroidal combustion chamber described in any one of claim 1~7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711184638.5A CN107702148A (en) | 2017-11-23 | 2017-11-23 | The toroidal combustion chamber and gas turbine of a kind of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711184638.5A CN107702148A (en) | 2017-11-23 | 2017-11-23 | The toroidal combustion chamber and gas turbine of a kind of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107702148A true CN107702148A (en) | 2018-02-16 |
Family
ID=61185695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711184638.5A Withdrawn CN107702148A (en) | 2017-11-23 | 2017-11-23 | The toroidal combustion chamber and gas turbine of a kind of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107702148A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404965A (en) * | 2018-12-04 | 2019-03-01 | 新奥能源动力科技（上海）有限公司 | A kind of combustion chamber of gas turbine and gas turbine |
| CN110345512A (en) * | 2018-04-06 | 2019-10-18 | 通用电气公司 | Gas-turbine unit |
| CN114688560A (en) * | 2022-03-09 | 2022-07-01 | 中国联合重型燃气轮机技术有限公司 | Mixer for staged combustion chamber |
-
2017
- 2017-11-23 CN CN201711184638.5A patent/CN107702148A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345512A (en) * | 2018-04-06 | 2019-10-18 | 通用电气公司 | Gas-turbine unit |
| CN110345512B (en) * | 2018-04-06 | 2021-12-31 | 通用电气公司 | Gas turbine engine |
| US11378277B2 (en) | 2018-04-06 | 2022-07-05 | General Electric Company | Gas turbine engine and combustor having air inlets and pilot burner |
| CN109404965A (en) * | 2018-12-04 | 2019-03-01 | 新奥能源动力科技（上海）有限公司 | A kind of combustion chamber of gas turbine and gas turbine |
| CN114688560A (en) * | 2022-03-09 | 2022-07-01 | 中国联合重型燃气轮机技术有限公司 | Mixer for staged combustion chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201306 101 new office building, A, 7 new industrial park, Shanghai, Pudong New Area, 600 new Yuan South Road, Pudong New Area. Applicant 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 Applicant before: Shanghai wisdom energy equipment Co., Ltd. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180216 |