CN215982678U - Premixing fuel injection mechanism of gas turbine - Google Patents
Premixing fuel injection mechanism of gas turbine Download PDFInfo
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- CN215982678U CN215982678U CN202122606504.6U CN202122606504U CN215982678U CN 215982678 U CN215982678 U CN 215982678U CN 202122606504 U CN202122606504 U CN 202122606504U CN 215982678 U CN215982678 U CN 215982678U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to the technical field of gas turbines, and discloses a premixed fuel injection mechanism of a gas turbine, which comprises a shell, wherein the inner wall of the shell is fixedly connected with an air suction compressor, the outer wall of the air suction compressor is fixedly connected with an air collection chamber, the outer wall of the air collection chamber, which is far away from one end of the air suction compressor, is fixedly connected with an oxygen-enriched membrane separator, the inner wall of the air collection chamber is fixedly connected with a preheating spiral wire, one end of the air collection chamber, which is far away from the air suction compressor, is fixedly connected with an air inlet pipe, one end of the air inlet pipe, which is far away from the air collection chamber, is fixedly connected with a combustion chamber, one end of the combustion chamber, which is close to the air inlet pipe, is fixedly connected with a feed pipe, and one end of the combustion chamber, which is far away from the feed pipe, is fixedly connected with an air injection pipe; the temperature rise of the bimetallic strip is deformed to be in contact with the contact, so that the pressurizing circulating pump is electrified to operate and cool the combustion chamber, and the effects of cooling the combustion chamber according to the temperature of the combustion chamber and prolonging the service life of the combustion chamber are achieved.
Description
Technical Field
The utility model relates to the technical field of gas turbines, in particular to a premixing fuel injection mechanism of a gas turbine.
Background
The gas turbine is an internal combustion type power machine which takes continuously flowing gas as a working medium to drive an impeller to rotate at a high speed and converts the energy of fuel into useful work, and in the main flow of air and gas, the gas turbine only has gas turbine circulation consisting of three parts, namely a gas compressor, a combustion chamber and a gas turbine, which is generally called simple circulation, and most of the gas turbines adopt a simple circulation scheme.
The existing gas turbine compressor can not increase the oxygen content and the gas temperature in the process of sucking air from the outside and supercharging, because the more oxygen in the air is absorbed, the more sufficient the gas is combusted, the higher the temperature of the gas entering a combustion chamber is, and the higher the combustion power is, the combustion efficiency and the power of the existing gas turbine are not ideal enough, and the combustion chamber can generate a large amount of heat when combusting fuel, the working of the combustion chamber can be high, the service life of the combustion chamber is influenced, the existing device for cooling the combustion chamber is in a state of always running once being started, the internal fuel can not be fully combusted when the temperature of the combustion chamber is not high, and the temperature of the combustion chamber can not be reduced according to the temperature of the combustion chamber.
Therefore, in response to these problems, a premixed fuel injection mechanism for a gas turbine is needed to solve the problems.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a premixing fuel injection mechanism of a gas turbine, which has the advantages of improving the oxygen content and the gas temperature before combustion, improving the combustion efficiency and power, cooling a combustion chamber according to the temperature of the combustion chamber and prolonging the service life of the combustion chamber.
In order to achieve the purposes of improving the oxygen content and the gas temperature, improving the combustion efficiency and power, cooling the combustion chamber according to the temperature of the combustion chamber and prolonging the service life of the combustion chamber, the utility model provides the following technical scheme: a premixing fuel injection mechanism of a gas turbine comprises a shell, wherein an air suction compressor is fixedly connected to the inner wall of the shell, an air collection chamber is fixedly connected to the outer wall of the air suction compressor, an oxygen-enriched membrane separator is fixedly connected to the outer wall of one end, away from the air suction compressor, of the air collection chamber, a preheating spiral wire is fixedly connected to the inner wall of the air collection chamber, one end, away from the air suction compressor, of the air collection chamber is fixedly connected with an air inlet pipe, one end, away from the air collection chamber, of the air inlet pipe is fixedly connected with a combustion chamber, one end, close to the air inlet pipe, of the combustion chamber is fixedly connected with an air injection pipe, the outer wall of the combustion chamber is provided with a cooling spiral pipe, one end of the cooling spiral pipe is fixedly connected with a cold water tank, the other end of the cooling spiral pipe is fixedly connected with a pressurization circulating pump, and one side, close to the air injection pipe, of the outer wall of the combustion chamber is fixedly connected with a detection box, the inner wall of the detection box is fixedly connected with a contact, and the bottom of the inner wall of the detection box is fixedly connected with a bimetallic strip.
Preferably, the air collection chamber is arranged in the shell, a through hole is formed in one side, close to the air suction compressor, of the outer wall of the air collection chamber, and the through hole corresponds to the position of the air suction compressor and is matched with the air suction compressor in specification.
Preferably, the oxygen-enriched membrane separator is annular, the oxygen-enriched membrane separator is fixedly connected to the inner wall of one end, far away from the air suction compressor, of the shell, oxygen-enriched holes are formed in the surface of the oxygen-enriched membrane separator, the oxygen-enriched holes are not less than eighty, the oxygen-enriched holes are evenly distributed in an equal angle mode with the center point of the oxygen-enriched membrane separator as the center, and the contact surface of the oxygen-enriched membrane separator, the shell and the air collecting chamber is subjected to sealing treatment.
Preferably, an oxygen-enriched chamber is arranged between the shell and the air collecting chamber, the preheating spiral wire is arranged in the center of the inside of the air collecting chamber, and the air suction compressor and the preheating spiral wire are electrically connected with an external power supply.
Preferably, the air inlet pipe penetrates through the outer wall of the combustion chamber, the feeding pipe penetrates through the outer wall of the combustion chamber, and fuel gas is arranged inside the feeding pipe.
Preferably, the air inlet pipe is arranged on the lower side of one end of the combustion chamber, the material inlet pipe is arranged on the upper side of one end of the combustion chamber, and the positions of the air inlet pipe and the material inlet pipe are corresponding.
Preferably, the cooling spiral pipe is spirally wound on the outer wall of the combustion chamber, the pressurizing and circulating pump is fixedly connected to the top of the cold water tank, the cooling liquid is arranged inside the cold water tank, and the pressurizing and circulating pump and the contact are both electrically connected with an external power supply.
Preferably, the bimetallic strip runs through the inner wall of detection case, and the bimetallic strip runs through the one end fixed connection of detection case at the outer wall of combustion chamber, and the detection case is corresponding and the specification phase-match with the position of contact, can produce deformation and to the one side bending of contact when the bimetallic strip is heated.
Has the advantages that:
1. the premixing fuel injection mechanism of the gas turbine operates through the air suction compressor and uses the gas flowing into the gas collection chamber as oxygen-enriched gas under the action of the oxygen-enriched membrane separator and the oxygen-enriched holes, and simultaneously, the oxygen-enriched gas is contacted with the preheating spiral wire and is heated, so that the mechanism can increase the absorption of oxygen, the temperature of the gas is increased, the gas combustion is further sufficient, the combustion power is increased, the combustion efficiency and the combustion power are more ideal, and the effects of improving the oxygen content and the gas temperature and improving the combustion efficiency and power are achieved.
2. This kind of gas turbine's fuel injection mechanism that mixes in advance, the temperature through the bimetallic strip rises and produces deformation and contact, makes the circular pump circular telegram operation of pressurizing and for the combustion chamber cooling for this mechanism can not run always and for the combustion chamber cooling, further is favorable to the abundant burning of fuel, has also prolonged the life of combustion chamber simultaneously, and has reached the effect that can cool down and prolong the life of combustion chamber for the combustion chamber according to the temperature of combustion chamber.
Drawings
FIG. 1 is a schematic view of the overall structure of a first view angle of the present invention;
FIG. 2 is a schematic view of the overall structure of a second perspective of the present invention;
FIG. 3 is a schematic sectional view of the inspection box of the present invention;
FIG. 4 is a schematic cross-sectional view of the housing of the present invention;
FIG. 5 is a schematic cross-sectional view of the housing, plenum of the present invention;
fig. 6 is an exploded view of the structure of fig. 5 in accordance with the present invention.
In the figure: 1. a housing; 2. an air suction compressor; 3. a gas collection chamber; 4. a through hole; 5. an oxygen-enriched membrane separator; 6. entering an air pipe; 7. a combustion chamber; 8. a feeding pipe; 9. a gas ejector tube; 10. cooling the spiral pipe; 11. a cold water tank; 12. a pressurizing circulation pump; 13. a detection box; 14. a contact; 15. a bimetal; 16. preheating the spiral wire; 17. an oxygen enrichment chamber; 18. oxygen-rich pores.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a premixed fuel injection mechanism of a gas turbine comprises a housing 1, an air suction compressor 2 is fixedly connected to the inner wall of the housing 1, an air collection chamber 3 is fixedly connected to the outer wall of the air suction compressor 2, the air collection chamber 3 is arranged inside the housing 1, a through hole 4 is formed in one side, close to the air suction compressor 2, of the outer wall of the air collection chamber 3, the through hole 4 corresponds to the position of the air suction compressor 2 and is matched with the specification of the air suction compressor, an oxygen-enriched membrane separator 5 is fixedly connected to the outer wall of one end, far away from the air suction compressor 2, of the air collection chamber 3, the oxygen-enriched membrane separator 5 is annular, the oxygen-enriched membrane separator 5 is fixedly connected to the inner wall of one end, far away from the air suction compressor 2, oxygen-enriched holes 18 are formed in the surface of the oxygen-enriched membrane separator 5, the oxygen-enriched holes 18 are not less than eighty, and the oxygen-enriched holes 18 are uniformly distributed at equal angles with the center point of the oxygen-enriched membrane separator 5, the contact surface of the oxygen-enriched membrane separator 5 and the shell 1 and the gas collecting chamber 3 adopts sealing treatment.
The inner wall of the air collection chamber 3 is fixedly connected with a preheating spiral wire 16, an oxygen enrichment chamber 17 is arranged between the shell 1 and the air collection chamber 3, the preheating spiral wire 16 is arranged in the center inside the air collection chamber 3, the air suction compressor 2 and the preheating spiral wire 16 are electrically connected with an external power supply, the air flowing into the air collection chamber 3 is oxygen-enriched air under the action of the oxygen-enriched membrane separator 5 and the oxygen enrichment holes 18 through the operation of the air suction compressor 2, and meanwhile, the oxygen-enriched air is contacted with and heated by the preheating spiral wire 16, so that the mechanism can increase the absorption of oxygen, the temperature of the air is increased, the combustion of the gas is further sufficient, the combustion power is increased, the combustion efficiency and the combustion power are more ideal, and the effects of improving the oxygen content and the gas temperature and improving the combustion efficiency and the combustion power are achieved.
One end fixedly connected with income trachea 6 that induced draft compressor 2 was kept away from to plenum chamber 3, the one end fixedly connected with combustion chamber 7 that the collection chamber 3 was kept away from to income trachea 6, combustion chamber 7 is close to the one end fixedly connected with pan feeding pipe 8 of income trachea 6, it runs through the outer wall of combustion chamber 7 to go into trachea 6, pan feeding pipe 8 runs through the outer wall of combustion chamber 7, the inside of pan feeding pipe 8 is provided with the gas, it sets up the downside in combustion chamber 7 one end to go into trachea 6, pan feeding pipe 8 sets up the upside in combustion chamber 7 one end, it is corresponding with the position of pan feeding pipe 8 to go into trachea 6.
Combustor 7 keeps away from the jet-propelled pipe 9 of one end fixedly connected with of pan feeding pipe 8, the outer wall of combustor 7 is provided with cooling spiral pipe 10, the one end fixedly connected with cold water storage cistern 11 of cooling spiral pipe 10, the other end fixedly connected with pressurization circulating pump 12 of cooling spiral pipe 10, one side fixedly connected with detection case 13 that the 7 outer walls of combustor are close to jet-propelled pipe 9, the inner wall fixedly connected with contact 14 of detection case 13, cooling spiral pipe 10 is the heliciform winding and at the outer wall of combustor 7, pressurization circulating pump 12 fixed connection is at the top of cold water storage cistern 11, the inside of cold water storage cistern 11 is provided with the coolant liquid, pressurization circulating pump 12, contact 14 all is connected with external power source electricity, the bottom fixedly connected with bimetallic strip 15 of detection case 13 inner wall.
The working principle is as follows: firstly, an operator controls an external power supply to supply power to the air suction compressor 2 and the preheating spiral wire 16, the preheating spiral wire 16 can generate heat when being electrified, the air suction compressor 2 can absorb the gas in the oxygen enrichment chamber 17 through the through hole 4 when being electrified and then inject the gas into the gas collection chamber 3, at the moment, the pressure of the oxygen enrichment chamber 17 is reduced, the external air can flow into the oxygen enrichment chamber 17 through the oxygen enrichment holes 18 formed in the surface of the oxygen enrichment membrane separator 5, the air flowing into the oxygen enrichment chamber 17 is changed into the oxygen-enriched gas under the action of the oxygen enrichment membrane separator 5, and because the oxygen enrichment membrane separator 5 is annular, the oxygen enrichment holes 18 are uniformly distributed on the outer wall of the oxygen enrichment membrane separator 5 at equal angles, the oxygen range of the oxygen in the air absorbed by the oxygen enrichment membrane separator 5 is wider, the content of the oxygen in the absorbed gas is greatly increased, the oxygen-enriched air in the oxygen enrichment chamber 17 enters the gas collection chamber 3 and is compressed under the action of the air suction compressor 2 through the through hole 4, the compressed oxygen-enriched gas is contacted with the preheating spiral wire 16 and is heated under the action of the preheating spiral wire 16, the gas heated in the gas collection chamber 3 is sprayed into the combustion chamber 7 through the gas inlet pipe 6, meanwhile, the gas is sprayed into the combustion chamber 7 through the material inlet pipe 8, the gas and the heated oxygen-enriched gas are mixed with each other and are ignited in the combustion chamber 7, the oxygen is sufficient, and the oxygen-enriched gas has the initial temperature, so that the combustion of the fuel is more sufficient, the air suction compressor 2 of the mechanism can increase the oxygen content and the gas temperature in the process of sucking the air from the outside and pressurizing through the steps, so that the oxygen in the absorbed air is increased, the temperature of the gas entering the combustion chamber 7 is increased, the more sufficient the combustion of the gas is further realized, the combustion power is increased, and meanwhile, the combustion efficiency and the power of the mechanism are more ideal, and achieves the effects of increasing the oxygen content and gas temperature and improving the efficiency and power of combustion.
The temperature of the combustion chamber 7 is increased by the combustion of the gas in the combustion chamber 7, the temperature of the combustion chamber 7 is transferred to the bimetal 15, so that the temperature of the bimetal 15 is increased, the bimetal 15 is deformed and generates bending deformation towards one side of the contact 14, when the temperature of the combustion chamber 7 exceeds a limited temperature and can affect the service life of the combustion chamber 7, the combustion chamber 7 transfers heat to the bimetal 15, so that the bimetal 15 is deformed and is contacted with the contact 14, at the moment, an external power supply can energize the pressurizing circulating pump 12, the energizing operation of the pressurizing circulating pump 12 can drive the cooling liquid in the cold water tank 11 to flow into the cooling spiral pipe 10, the cooling liquid takes the temperature of the surface of the combustion chamber 7 through the cooling spiral pipe 10 and returns to the inside of the cold water tank 11, after the temperature of the combustion chamber 7 is reduced, the temperature of the bimetal 15 is also reduced, at the moment, the bimetal 15 can restore to be deformed and is not contacted with the contact 14, at this moment external power source can stop to energize for pressurization circulating pump 12, pressurization circulating pump 12 stop operation is no longer for combustion chamber 7 cooling down with the same reason, make the temperature of combustion chamber 7 can not too low, make this mechanism can give combustion chamber 7 cooling down according to combustion chamber 7 temperature, can not be in the state of always running, further can not be do not do benefit to the abundant burning of combustion chamber 7 inside fuel, the life of combustion chamber 7 has also been prolonged simultaneously, and reached and can give combustion chamber 7 cooling down and prolong the life's of combustion chamber 7 effect according to the temperature of combustion chamber 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A premixed fuel injection mechanism of a gas turbine comprising a casing (1), characterized in that: the inner wall of the shell (1) is fixedly connected with an air suction compressor (2), the outer wall of the air suction compressor (2) is fixedly connected with a gas collection chamber (3), the outer wall of the gas collection chamber (3) far away from one end of the air suction compressor (2) is fixedly connected with an oxygen-enriched membrane separator (5), the inner wall of the gas collection chamber (3) is fixedly connected with a preheating spiral wire (16), one end of the gas collection chamber (3) far away from the air suction compressor (2) is fixedly connected with a gas inlet pipe (6), one end of the gas inlet pipe (6) far away from the gas collection chamber (3) is fixedly connected with a combustion chamber (7), one end of the combustion chamber (7) close to the gas inlet pipe (6) is fixedly connected with a material inlet pipe (8), one end of the combustion chamber (7) far away from the material inlet pipe (8) is fixedly connected with a gas injection pipe (9), the outer wall of the combustion chamber (7) is provided with a cooling spiral pipe (10), one end of the cooling spiral pipe (11) is fixedly connected with a cold water tank (11), the other end of the cooling spiral pipe (10) is fixedly connected with a pressurizing circulating pump (12), one side of the outer wall of the combustion chamber (7) close to the gas injection pipe (9) is fixedly connected with a detection box (13), the inner wall of the detection box (13) is fixedly connected with a contact (14), and the bottom of the inner wall of the detection box (13) is fixedly connected with a bimetallic strip (15).
2. The premixed fuel injection mechanism of a gas turbine according to claim 1, wherein: the air collection chamber (3) is arranged in the shell (1), and a through hole (4) is formed in one side, close to the air suction compressor (2), of the outer wall of the air collection chamber (3).
3. The premixed fuel injection mechanism of a gas turbine according to claim 1, wherein: the oxygen-enriched membrane separator (5) is annular, the oxygen-enriched membrane separator (5) is fixedly connected to the inner wall of one end, away from the air suction compressor (2), of the shell (1), oxygen-enriched holes (18) are formed in the surface of the oxygen-enriched membrane separator (5), the number of the oxygen-enriched holes (18) is not less than eighty, and the oxygen-enriched holes (18) are uniformly distributed in an equiangular mode by taking the center point of the oxygen-enriched membrane separator (5) as the center.
4. The premixed fuel injection mechanism of a gas turbine as set forth in claim 2, wherein: an oxygen enrichment chamber (17) is arranged between the shell (1) and the gas collection chamber (3), and the preheating spiral wire (16) is arranged in the center inside the gas collection chamber (3).
5. The premixed fuel injection mechanism of a gas turbine according to claim 1, wherein: the air inlet pipe (6) penetrates through the outer wall of the combustion chamber (7), and the material inlet pipe (8) penetrates through the outer wall of the combustion chamber (7).
6. The premixed fuel injection mechanism of a gas turbine as set forth in claim 5, wherein: the air inlet pipe (6) is arranged at the lower side of one end of the combustion chamber (7), and the material inlet pipe (8) is arranged at the upper side of one end of the combustion chamber (7).
7. The premixed fuel injection mechanism of a gas turbine according to claim 1, wherein: the cooling spiral pipe (10) is spirally wound on the outer wall of the combustion chamber (7), the pressurizing circulating pump (12) is fixedly connected to the top of the cold water tank (11), and cooling liquid is arranged inside the cold water tank (11).
8. The premixed fuel injection mechanism of a gas turbine according to claim 1, wherein: the bimetallic strip (15) runs through the inner wall of the detection box (13), one end of the bimetallic strip (15) running through the detection box (13) is fixedly connected to the outer wall of the combustion chamber (7), and the detection box (13) corresponds to the contact (14) in position and is matched in specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122606504.6U CN215982678U (en) | 2021-10-28 | 2021-10-28 | Premixing fuel injection mechanism of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122606504.6U CN215982678U (en) | 2021-10-28 | 2021-10-28 | Premixing fuel injection mechanism of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215982678U true CN215982678U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122606504.6U Active CN215982678U (en) | 2021-10-28 | 2021-10-28 | Premixing fuel injection mechanism of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215982678U (en) |
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2021
- 2021-10-28 CN CN202122606504.6U patent/CN215982678U/en active Active
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