CN207648855U - A kind of toroidal combustion chamber and gas turbine of gas turbine - Google Patents
A kind of toroidal combustion chamber and gas turbine of gas turbine Download PDFInfo
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- CN207648855U CN207648855U CN201721586535.7U CN201721586535U CN207648855U CN 207648855 U CN207648855 U CN 207648855U CN 201721586535 U CN201721586535 U CN 201721586535U CN 207648855 U CN207648855 U CN 207648855U
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- air
- inner liner
- burner inner
- combustion chamber
- outer casing
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Abstract
The utility model is related to gas turbine fields, disclose a kind of toroidal combustion chamber and gas turbine of gas turbine, the toroidal combustion chamber includes interior casing and the outer casing that is sleeved on interior casing, the burner inner liner of annular is equipped between interior casing and outer casing, the gap between burner inner liner and interior casing, outer casing is used for air circulation；Further include multiple pre-mixing apparatus, circumferentially, each pre-mixing apparatus includes air conducting cylinder to multiple pre-mixing apparatus, and air conducting cylinder is connected to outer casing；Premix pipeline is equipped in air conducting cylinder in an axial direction, premix pipeline is connected to air conducting cylinder and burner inner liner respectively；The one end of air conducting cylinder far 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 utility model is related to gas turbine field more particularly to the toroidal combustion chambers and combustion gas wheel of a kind of gas turbine
Machine.
Background technology
Miniature gas turbine has the features such as compact-sized, light-weight, maintenance cost is low, can be widely applied to distributed hair
Electrical domain.Toroidal combustion chamber is common equipment 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 in burner inner liner with air after nozzle sprays, due to fuel with
Air mixing is uneven, and local temperature is excessively high when leading to fuel combustion, and the yield of NOx with formation speed with ignition temperature
Raising is exponentially increased so that the content of NOx is higher in combustion product；In addition, nozzle service life affected by the high temperature is relatively low.
Utility model content
The utility model provides a kind of toroidal combustion chamber and gas turbine of gas turbine, avoids generating part in burner inner liner
High temperature reduces the discharge of NOx, meanwhile, so that the components such as nozzle is exempted from affected by the high temperature.
The utility model embodiment provides a kind of toroidal combustion chamber of gas turbine, which includes interior casing
And it is sleeved on the outer casing on the interior casing, the burner inner liner of annular, institute are equipped between the interior casing and the outer casing
The gap stated between burner inner liner and the interior casing, the outer casing forms the air duct for being used for air circulation；
Further include multiple pre-mixing apparatus, each pre-mixing apparatus includes air conducting cylinder, the air conducting cylinder with it is described outer
Casing is connected to, and is circumferentially distributed along the side wall of the outer casing；Premix pipeline, the premix are equipped in the air conducting cylinder
Pipeline is connected to 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 far from the outer casing is fixed with nozzle, and the head of the nozzle stretch into it is described
It premixes 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 are connected to 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 in premix chamber with the fuel that nozzle sprays, and avoids due to fire
Flame cylinder fuel and air are uneven and local temperature excessively high problem when leading to burning, thereby reduce the production quantity of NOx；Separately
Outside, entire pre-mixing apparatus is located at outside burner inner liner, affected by the high temperature to make the components such as nozzle exempt from.
Preferably, the air conducting cylinder is arranged or is counterclockwise arranged along clockwise direction.
In a specific embodiment, baffle is equipped between the interior casing and the outer casing, and far from described
One end of baffle is equipped with air intake；
The baffle is equipped with the through-hole of annular, and the burner inner liner is threaded through in the through-hole, and the burner inner liner exposes
One end of the baffle is equipped with exhanst gas outlet.
Preferably, the side wall of the burner inner liner is equipped 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 on 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 utility model embodiment additionally provides a kind of gas turbine, including toroidal combustion chamber described in any one of the above embodiments.
In the toroidal combustion chamber, by be arranged pre-mixing apparatus make fuel enter burner inner liner before can with air partial pre-mix,
Prevent local temperature in burner inner liner excessively high；In addition, pre-mixing apparatus is located at outside burner inner liner, shadow of the components such as nozzle by high temperature is avoided
It rings, extends service life.
Description of the drawings
Fig. 1 is the axonometric drawing for the toroidal combustion chamber that the utility model embodiment provides；
Fig. 2 is the side view for the toroidal combustion chamber that the utility model embodiment provides；
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 numeral：
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 60- air intakes
Specific implementation mode
It is new to this practicality below in conjunction with the accompanying drawings in order to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
The every other embodiment obtained is put, shall fall within the protection scope of the present invention.
The utility model embodiment provides a kind of toroidal combustion chamber of gas turbine, which includes interior casing
And it is sleeved on the outer casing on interior casing, it is equipped with the burner inner liner of annular between interior casing and outer casing, burner inner liner and interior casing,
Gap between outer casing forms the air duct for air circulation；Further include multiple pre-mixing apparatus, wherein
Each pre-mixing apparatus includes air conducting cylinder, and air conducting cylinder is connected to outer casing, and is in along the side wall of outer casing
Circle distribution；Premix pipeline is equipped in air conducting cylinder, premix pipeline is connected to burner inner liner, and air conducting cylinder is for leading to air
Air in road is oriented in premix pipeline；
The one end of air conducting cylinder far from outer casing is fixed with nozzle, and the head of nozzle is stretched into premix pipeline, premix
Mixture of the pipeline for conveying fuel and air 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 are connected to 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 in premix chamber with the fuel that nozzle sprays, and avoids due to fire
Flame cylinder fuel and air are uneven and local temperature excessively high problem when leading to burning, thereby reduce the production quantity of NOx；Separately
Outside, entire pre-mixing apparatus is located at outside burner inner liner, affected by the high temperature to make the components such as nozzle exempt from.
In order to be more apparent from the utility model embodiment offer gas turbine toroidal combustion chamber structure, it is existing
It is described in detail in conjunction with attached drawing.
Together with reference to figure 1, Fig. 4, the toroidal combustion chamber of the gas turbine includes interior casing 10 and is 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 equipped 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 at cylindrical shape
It sets, and outer casing 20 is sleeved on interior casing 10, in this way, the cavity of annular is formd between interior casing 10 and outer casing 20,
Correspondingly, burner inner liner 30 is the burner inner liner of annular, also, the setting of burner inner liner 30 is in the cavity.When specific connection, interior casing 10
Baffle 50 is equipped between outer casing 20, baffle 50 is equipped with the through-hole of annular, and burner inner liner 30 is threaded through in through-hole, and burner inner liner
30 one end for exposing baffle 50 are equipped with exhanst gas outlet 33；In one end far from baffle 50, between interior casing 10 and outer casing 20 also
Equipped with air intake 60, air intake 60 also circularizes setting, and outside air enters air duct by air intake 60, and in sky
It flows to 50 one end of baffle along the side wall of burner inner liner 30 in gas channel, in this way, reducing the additional circulation path of air, reduces
The pressure loss improves the complete machine thermal efficiency.
Together with reference to figure 1, Fig. 2, Fig. 3, which further includes multiple pre-mixing apparatus 40, and each pre-mixing apparatus 40 wraps
Air conducting cylinder 41 is included, air conducting cylinder 41 is connected to outer casing 20 and is circumferentially distributed along the side wall of outer casing 20, also, empty
Premix pipeline 42 is equipped in conductance flow cartridge 41, premix pipeline 42 is connected to burner inner liner 30, and air conducting cylinder 41 is for leading to air
Air in road is oriented in premix pipeline 42.In this way, air conducting chamber is formed between air conducting cylinder 41 and premix pipeline 42,
It premixes and forms premix chamber in pipeline 42, premix chamber is connected to air conducting chamber, and outside air is led to by air intake 60 into air
Behind road, the side wall along burner inner liner 30 is flowed to 50 one end of baffle, and a portion air is entered by air conducting chamber in premix chamber,
And burner inner liner 30 is entered by premix chamber.In addition, the one end of air conducting cylinder 41 far from outer casing 20 is fixed with nozzle 43, nozzle 43
Using simple nozzle, simple nozzle is simple in structure, and at low cost, easy to repair, alternatively, nozzle 43 can also use it
The nozzle of his type；The head of nozzle 43 is stretched into premix pipeline 42, and sprays 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 conducive to fire in this way
The burning of material, avoid due to 30 fuel of burner inner liner and air it is uneven and cause burning when the excessively high problem of local temperature,
Thereby reduce the production quantity of NOx；In addition, entire pre-mixing apparatus 40 is located at outside burner inner liner 30, to make the components such as nozzle 43 exempt from
It is affected by the high temperature.
When specific setting, air conducting cylinder 41 is arranged or is counterclockwise arranged along clockwise direction, as shown in figure 3, should
Toroidal combustion chamber includes four pre-mixing apparatus 40, wherein air conducting cylinder 41 is arranged along clockwise direction, more specifically, often
In a air conducting cylinder 41, premix pipeline 42 is convenient for the mixing of fuel and air formation in this way along the tangentially-arranged of burner inner liner 30
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 equipped 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 on 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 the way that pre-mixing apparatus 40 is arranged on the one hand so that fuel enters fire in the present embodiment
It can be pre-mixed with air before flame cylinder 30, avoid causes to burn since 30 fuel of burner inner liner is uneven with air
When the excessively high problem of local temperature, thereby reduce the production quantity of NOx；On the other hand, since entire pre-mixing apparatus 40 is arranged
It is affected by the high temperature to make the components such as nozzle 43 exempt from outside burner inner liner 30.
The utility model embodiment additionally provides a kind of gas turbine, which includes any of the above-described kind of annular firing
Room, the toroidal combustion chamber is compact-sized, effectively reduces the overall dimensions of gas turbine, also, be arranged in the toroidal combustion chamber
Pre-mixing apparatus 40 so that fuel can be pre-mixed before entering burner inner liner 30 with air, is avoided fuel and is being burnt
When generate localized hyperthermia, to reduce the production quantity of NOx；In addition, pre-mixing apparatus 40 is arranged in fire in the toroidal combustion chamber
It is affected by the high temperature to make the components such as nozzle 43 exempt from outside flame cylinder 30.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
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 equipped between interior casing and the outer casing, between the burner inner liner and the interior casing, the outer casing
Gap formed for air circulation air duct；It is characterized in that,
Further include multiple pre-mixing apparatus, each pre-mixing apparatus includes air conducting cylinder, the air conducting cylinder and the outer casing
Connection, and be circumferentially distributed along the side wall of the outer casing；Premix pipeline, the premix pipeline are equipped in the air conducting cylinder
It is connected to the burner inner liner, the air conducting cylinder is used to the air in the air duct being oriented in the premix pipeline；
The one end of the air conducting cylinder far from the outer casing is further fixed on nozzle, and the head of the nozzle stretch into it is described pre-
In mixed pipeline, mixture of the premix pipeline for conveying fuel and air into the burner inner liner.
2. toroidal combustion chamber as described in claim 1, which is characterized in that the air conducting cylinder be arranged along clockwise direction or
Counterclockwise it is arranged.
3. toroidal combustion chamber as described in claim 1, which is characterized in that be equipped with gear between the interior casing and the outer casing
Plate, and it is equipped with air intake in one end far from the baffle；
The baffle is equipped with the through-hole of annular, and the burner inner liner is threaded through in the through-hole, and described in burner inner liner exposing
One end of baffle is equipped with exhanst gas outlet.
4. toroidal combustion chamber as claimed in claim 3, which is characterized in that the side wall of the burner inner liner is equipped 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, which is characterized 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 described in claim 1, which is characterized in that the number of the pre-mixing apparatus is four.
7. such as claim 1~6 any one of them toroidal combustion chamber, which is characterized in that the nozzle is simple nozzle.
8. a kind of gas turbine, which is characterized in that including claim 1~7 any one of them toroidal combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721586535.7U CN207648855U (en) | 2017-11-23 | 2017-11-23 | A kind of toroidal combustion chamber and gas turbine of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721586535.7U CN207648855U (en) | 2017-11-23 | 2017-11-23 | A kind of toroidal combustion chamber and gas turbine of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207648855U true CN207648855U (en) | 2018-07-24 |
Family
ID=62890755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721586535.7U Active CN207648855U (en) | 2017-11-23 | 2017-11-23 | A kind of toroidal combustion chamber and gas turbine of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207648855U (en) |
-
2017
- 2017-11-23 CN CN201721586535.7U patent/CN207648855U/en active Active
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