CN209011957U - A kind of gas turbine - Google Patents
A kind of gas turbine Download PDFInfo
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- CN209011957U CN209011957U CN201821561364.7U CN201821561364U CN209011957U CN 209011957 U CN209011957 U CN 209011957U CN 201821561364 U CN201821561364 U CN 201821561364U CN 209011957 U CN209011957 U CN 209011957U
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Abstract
The utility model relates to gas turbine field, spy is related to a kind of gas turbine.The second tunnel of high pressure working medium of the utility model high-pressure compressor enters combustion chamber, from combustion chamber, output gas enters high-pressure turbine, high-pressure turbine output gas enters low-pressure turbine, and low-pressure compressor exports low pressure first via working medium or high-pressure compressor exports high pressure first via working medium.The first via working medium of the utility model output can be used for starting more powerful gas turbine or generate thrust, keep driving equipment smaller more economical.
Description
Technical field
The utility model relates to gas turbine field, spy is related to a kind of gas turbine.
Background technique
Existing gas turbine air starting system will be atmospheric compressed by compressor set, high-pressure working medium is formed, by this
High-pressure working medium can start gas turbine.The pressure-air activation system needs volume and the huge compressor of power
Group is unfavorable for large-scale promotion application.And for heavy duty gas turbine, by the way of compressor start, will greatly it increase
The manufacturing cost of adding system keeps system equipment bulky.
Summary of the invention
In view of the deficiencies of the prior art, the utility model provides a kind of gas turbine.The gas turbine of the utility model
Output high-pressure working medium is for starting more powerful gas turbine or generating thrust, to reduce the manufacture of large-scale gas turbine
Cost and volume, the gas turbine of the utility model also can produce lasting thrust.
The technical solution of the utility model is: a kind of gas turbine, including low-pressure compressor, low-pressure turbine, high pressure are calmed the anger
Machine, high-pressure turbine, combustion chamber, low pressure the second tunnel working medium input high-pressure compressor, it is characterised in that: the high pressure of high-pressure compressor the
Two tunnel working medium enter combustion chamber, and from combustion chamber, output gas enters high-pressure turbine, and high-pressure turbine output gas enters low-pressure turbine,
Low-pressure compressor exports low pressure first via working medium or high-pressure compressor exports high pressure first via working medium.
According to a kind of gas turbine as described above, it is characterised in that: further include heat exchanger, high-pressure compressor is by heat exchange
Enter combustion chamber after device, low-pressure turbine output gas is by heat exchanger heat exchange discharge.
According to a kind of gas turbine as described above, it is characterised in that: low-pressure turbine output power is calmed the anger no more than low pressure
The 5% of machine input power；High-pressure turbine output power is no more than the 5% of high-pressure compressor input power.
According to a kind of gas turbine as described above, it is characterised in that: low-pressure compressor is coaxially connected with low-pressure turbine, high
Press compressor and high-pressure turbine coaxially connected.
According to a kind of gas turbine as described above, it is characterised in that: the connection of low-pressure compressor and low-pressure turbine and height
Pressing the connection of compressor and high-pressure turbine is split axle structure；Low-pressure turbine and high-pressure turbine are counter rotating turbine.
According to a kind of gas turbine as described above, it is characterised in that: further include heater, heater is arranged in low pressure whirlpool
Between wheel and high-pressure turbine, the working medium that heater exports high-pressure turbine is heated.
According to a kind of gas turbine as described above, it is characterised in that: further include cooler, cooler is arranged in low pressure pressure
Between mechanism of qi and high-pressure compressor, cooler is cooling using spray injection mode.
According to a kind of gas turbine as described above, it is characterised in that: the 20% to 60% of low-pressure compressor inlet flow rate
Output be that the 20% to 60% of low pressure first via working medium or high-pressure compressor inlet flow rate to export be high pressure first via working medium.
The invention also discloses a kind of starting methods of heavy duty gas turbine, in such a way that high-pressure working medium is blown
Started, it is characterised in that: high-pressure working medium is exported by gas turbine, and the pressure of gas turbine high-pressure working medium gas is 200kpa
To between 2500kpa.
According to a kind of starting method of heavy duty gas turbine as described above, it is characterised in that: using as described above
Gas turbine exports high-pressure working medium, and high-pressure working medium is low pressure first via working medium or high pressure first via working medium.
The beneficial effects of the utility model are: first is that the first via working medium of output can be used for starting more powerful combustion gas wheel
Machine generates thrust, keeps driving equipment smaller more economical.Second is that split axle structure, each rotor structure is simple.Third is that compressor and
Turbine power is suitable, and equipment operating efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of another embodiment of the utility model.
Fig. 3 is the structural schematic diagram of another embodiment of the utility model.
Fig. 4 is the structural schematic diagram of another embodiment of the utility model.
Fig. 5 is the structural schematic diagram of another embodiment of the utility model.
Detailed description of the invention: low-pressure compressor 1, low pressure first via working medium 10, the second tunnel of low pressure working medium 11, low-pressure turbine 2, high pressure
Compressor 3, high pressure first via working medium 30, the second tunnel of high pressure working medium 31, high-pressure turbine 4, heat exchanger 5, combustion chamber 6, heater 7,
Cooler 8.
Specific embodiment
The technical solution of the utility model is described further below in conjunction with attached drawing.
As shown in Figure 1, the gas turbine of the utility model include low-pressure compressor 1, low-pressure turbine 2, high-pressure compressor 3,
High-pressure turbine 4, heat exchanger 5, combustion chamber 6, low-pressure compressor 1 and low-pressure turbine 2 are coaxially connected, and low-pressure compressor 1 exports two-way
Working medium, respectively low pressure first via working medium 10, the second tunnel of low pressure working medium 11.The second tunnel of low pressure working medium 11 inputs high-pressure compressor 3,
High-pressure compressor 3 and high-pressure turbine 4 are coaxially connected, and high-pressure compressor 3 enters combustion chamber 6 after heat exchanger 5, then from burning
6 output gas of room enters high-pressure turbine 4, and 4 output gas of high-pressure turbine enters low-pressure turbine 2, and 2 output gas of low-pressure turbine passes through
The heat exchange discharge of heat exchanger 5.2 output gas of low-pressure turbine can heat the working medium for entering combustion chamber 6 in this way, improve the energy
Utilization efficiency.
As shown in Fig. 2, the two-way High voltage output of the utility model can also be carried out in high-pressure compressor 3, low-pressure compressor 1
Output gas is all sent to high-pressure compressor 3, and it is respectively high pressure first via working medium 30, height that high-pressure compressor 3, which exports two-way working medium,
Press the second tunnel working medium 31.Such to be advantageous in that: the high-pressure working medium pressure of output is higher than method shown in Fig. 1, meets higher pressure
Demand.
As shown in figure 3, the utility model can also be not provided with heat exchanger 5, and if being not provided with heat exchanger 5,2 row of low-pressure turbine
Hot gas out not can be carried out secondary use, and the intake air temperature of respective combustion chamber 6 can be lower, and energy saving of system effect is not so good as Fig. 1 and Fig. 2
Shown technical solution.
The company of the low-pressure compressor 1 of the utility model and the connection of low-pressure turbine 2 and high-pressure compressor 3 and high-pressure turbine 4
It is connected in split axle structure, rotor structure each in this way is simple；Gas turbine manufacturing process is reduced, manufacturing cost is also reduced.
In the utility model, low-pressure compressor 1 and low-pressure turbine 2 and high-pressure compressor 3 are suitable with 4 power of high-pressure turbine,
I.e. 2 output power of low-pressure turbine is no more than the 5% of 1 input power of low-pressure compressor；4 output power of high-pressure turbine is no more than high pressure
The 5% of 3 input power of compressor；Ensuring the gas turbine of the utility model in this way, work efficiency is high.The combustion gas of the utility model
Turbine can close after starting when starting more powerful gas turbine.When gas turbine is used to generate lasting thrust,
Can be with long-term stable operation, and have the characteristics that energy utilization rate is high.
In the utility model, low-pressure turbine 2 and high-pressure turbine 4 are preferably counter rotating turbine, can further make this reality in this way
There is high-efficient, light weight benefit with novel device.
As shown in figure 4, further including heater 7, heater 7 is arranged between low-pressure turbine 2 and high-pressure turbine 4, heater 7
The working medium exported to high-pressure turbine 4 heats, and the efficiency of low-pressure turbine 2 is improved, to improve the efficiency of gas turbine.
As shown in figure 5, further including cooler 8, cooler 8 is arranged between low-pressure compressor 1 and high-pressure compressor 3.It is cold
But device 8 is cooling using spray injection mode, using the cooling working medium for leading to high-pressure compressor 3 of spray injection mode, improves simultaneously
Working medium power density improves the output power of combustion engine.
In the utility model Fig. 1,20% to 60% output of 1 inlet flow rate of low-pressure compressor is low pressure first via working medium
10, if the gas flow of low pressure first via working medium 10 can be 30%, 35%, 40%, 45%, 50%, 55%, preferred scope exists
40% to 50%, output average efficiency height can be improved in this way, make efficiency change < 1%.
In the utility model Fig. 2,20% to 60% output of 3 inlet flow rate of high-pressure compressor is high pressure first via working medium
30, if the gas flow of high pressure first via working medium 30 can be 30%, 35%, 40%, 45%, 50%, 55%, preferred scope exists
40% to 50%, output average efficiency height can be improved in this way, make efficiency change < 1%.
The invention also discloses a kind of starting methods of heavy duty gas turbine, in such a way that high-pressure working medium is blown
Started, high-pressure working medium is exported by gas turbine, the pressure of gas turbine high-pressure working medium gas be 200kpa to 2500kpa it
Between, it can be implemented as pressure is lower, then can be started using technical solution disclosed in Fig. 1, if pressure requirements are higher, then may be used
To be started using technical solution disclosed in Fig. 2.The method of the utility model is particularly suitable for starting rated power > 50kW
The high-power gas turbine for referring generally to power and being greater than 50kW of gas turbine and the utility model, for super-huge gas turbine,
If power is more than or equal to the gas turbine of 500kW, keep the smaller more economical advantage of equipment more prominent.
Claims (8)
1. a kind of gas turbine, including low-pressure compressor, low-pressure turbine, high-pressure compressor, high-pressure turbine, combustion chamber, low pressure
Two tunnel working medium input high-pressure compressor, it is characterised in that: the second tunnel of high pressure working medium of high-pressure compressor enters combustion chamber, from burning
Room output gas enters high-pressure turbine, and high-pressure turbine output gas enters low-pressure turbine, and low-pressure compressor exports the low pressure first via
Working medium or high-pressure compressor export high pressure first via working medium.
2. a kind of gas turbine according to claim 1, it is characterised in that: further include heat exchanger, high-pressure compressor passes through
Enter combustion chamber after heat exchanger, low-pressure turbine output gas is by heat exchanger heat exchange discharge.
3. a kind of gas turbine according to claim 1 or 2, it is characterised in that: low-pressure turbine output power is no more than low
Press the 5% of compressor input power；High-pressure turbine output power is no more than the 5% of high-pressure compressor input power.
4. a kind of gas turbine according to claim 1 or 2, it is characterised in that: low-pressure compressor is coaxial with low-pressure turbine
Connection, high-pressure compressor are coaxially connected with high-pressure turbine.
5. a kind of gas turbine according to claim 1 or 2, it is characterised in that: the company of low-pressure compressor and low-pressure turbine
Connecing with the connection of high-pressure compressor and high-pressure turbine is split axle structure；Low-pressure turbine and high-pressure turbine are counter rotating turbine.
6. a kind of gas turbine according to claim 1 or 2, it is characterised in that: further include heater, heater setting exists
Between low-pressure turbine and high-pressure turbine, the working medium that heater exports high-pressure turbine is heated.
7. a kind of gas turbine according to claim 1 or 2, it is characterised in that: further include cooler, cooler setting exists
Between low-pressure compressor and high-pressure compressor, cooler is cooling using spray injection mode.
8. a kind of gas turbine according to claim 1 or 2, it is characterised in that: the 20% of low-pressure compressor inlet flow rate
Exporting to 20% to 60% that 60% output be low pressure first via working medium or high-pressure compressor inlet flow rate is high pressure first via work
Matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821561364.7U CN209011957U (en) | 2018-09-25 | 2018-09-25 | A kind of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821561364.7U CN209011957U (en) | 2018-09-25 | 2018-09-25 | A kind of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209011957U true CN209011957U (en) | 2019-06-21 |
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ID=66834150
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821561364.7U Active CN209011957U (en) | 2018-09-25 | 2018-09-25 | A kind of gas turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404137A (en) * | 2018-09-25 | 2019-03-01 | 杭州螺旋新能源科技有限公司 | A kind of starting method of gas turbine and heavy duty gas turbine |
-
2018
- 2018-09-25 CN CN201821561364.7U patent/CN209011957U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404137A (en) * | 2018-09-25 | 2019-03-01 | 杭州螺旋新能源科技有限公司 | A kind of starting method of gas turbine and heavy duty gas turbine |
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