A gas turbine power generation device

Abstract

The present invention relates to the technical field of gas turbine power generation, and in particular to a gas turbine power generation device. A gas turbine power generation device comprises: an outer casing; a gas turbine disposed within the outer casing, the gas turbine comprising a gas generator rotor, a cavity being provided between the gas generator rotor and the outer casing, a partition plate being provided between the gas generator rotor and the outer casing to separate the cavity, a combustion chamber being formed between the partition plate and the gas generator rotor, and the partition plate being suitable for separating the air within the gas turbine; a generator assembly disposed within the outer casing and located at the air outlet end of the gas turbine, the generator assembly comprising a power turbine and a generator, the power turbine being connected to the generator, and the gas from the gas turbine being suitable for driving the power turbine to rotate and enabling the generator to generate electricity. The partition plate separates the air between the gas generator rotor and the outer casing, with a portion of the air entering the combustion chamber and a portion of the air mixing with the gas exhausted from the combustion chamber, thereby reducing the gas temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of gas turbine power generation, and in particular to a gas turbine power generation device. Background Art

[0002] In order to generate high-power electricity continuously and reliably, a high-power power generation device that uses a gas turbine to drive a generator is usually used. It has a small size, light weight, high power density, and can meet the needs of specific working environments.

[0003] However, the gas turbine generator in the prior art is prone to frequent damage to the turbo-electric engine part due to the excessively high exhaust temperature of the gas turbine, thereby causing the turbo-electric engine system to have a shorter lifespan. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the exhaust temperature of the gas turbine in the prior art is too high, which can easily lead to frequent damage to the turboelectric engine part, resulting in a shorter life of the turboelectric engine system, thereby providing a gas turbine power generation device.

[0005] In order to solve the above problems, the present invention provides a gas turbine power generation device, comprising:

[0006] outer receiver;

[0007] a gas turbine disposed within the outer casing, the gas turbine comprising a gas generator rotor, a cavity defined between the gas generator rotor and the outer casing, a partition plate separating the cavity between the gas generator rotor and the outer casing, a combustion chamber enclosed between the partition plate and the gas generator rotor, the partition plate being adapted to separate air within the gas turbine;

[0008] A generator assembly is arranged in the outer casing and located at the air outlet end of the gas turbine. The generator assembly includes a power turbine and a generator. The power turbine is connected to the generator. The gas from the gas turbine is suitable for driving the power turbine to rotate and enabling the generator to generate electricity.

[0009] Furthermore, the partition plate is fixed to the outer casing via a bracket.

[0010] Furthermore, the gas turbine further includes a compressor, which is arranged at the air inlet end of the gas turbine and is arranged on the gas generator rotor.

[0011] Furthermore, the gas turbine also includes a gas turbine, which is located at the air outlet end of the gas turbine, is fixedly mounted on the gas generator rotor, is connected to the combustion chamber, and the gas in the combustion chamber is suitable for being discharged through the gas turbine.

[0012] Furthermore, there is a gap between the power turbine and the gas turbine.

[0013] Furthermore, the power turbine is connected to the generator via a power shaft.

[0014] Furthermore, the outer casing also has an exhaust port, and the exhaust port is located on a side of the power turbine away from the gas turbine.

[0015] Furthermore, the gas generator rotor has a groove, and the combustion chamber is located in the groove.

[0016] Furthermore, the generator is a high-speed permanent magnet generator.

[0017] Furthermore, the diameter of the power turbine is larger than the diameter of the gas turbine.

[0018] The present invention has the following advantages:

[0019] The present invention discloses a gas turbine power generation device, comprising: an outer casing, a gas turbine, and a generator assembly. The gas turbine is disposed within the outer casing and includes a gas generator rotor. A cavity is defined between the gas generator rotor and the outer casing. A partition plate is disposed between the gas generator rotor and the outer casing to separate the cavity. A combustion chamber is formed between the partition plate and the gas generator rotor, and the partition plate is adapted to separate air within the gas turbine. The generator assembly is disposed within the outer casing and at the air outlet end of the gas turbine. The generator assembly includes a power turbine and a generator. The power turbine is connected to the generator, and the gas from the gas turbine is adapted to drive the power turbine to rotate and enable the generator to generate electricity.

[0020] A gas turbine generator device of this structure has a partition plate between the gas generator rotor and the outer casing to separate the air between the gas generator rotor and the outer casing. Part of the air enters the combustion chamber for reaction, and part of the air flows toward the power turbine and mixes with the gas discharged from the combustion chamber, thereby reducing the gas temperature to protect the engine part and increase the service life of the engine part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of a gas turbine power generation device according to an embodiment of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a gas turbine power generation device in the prior art;

[0024] Description of reference numerals:

[0025] 1. Outer casing; 2. Gas generator rotor; 3. Partition plate; 4. Combustion chamber; 5. Power turbine; 6. Generator; 7. Bracket; 8. Compressor; 9. Gas turbine; 10. Power shaft; 11. Exhaust port. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] like Figure 1As shown, the present invention discloses a gas turbine power generation device, comprising: an outer casing 1, a gas turbine, and a generator assembly. The gas turbine is disposed within the outer casing 1 and includes a gas generator rotor 2. A cavity is defined between the gas generator rotor 2 and the outer casing 1. A partition plate 3 is disposed between the gas generator rotor 2 and the outer casing 1 to separate the cavity. A combustion chamber 4 is formed between the partition plate 3 and the gas generator rotor 2. The partition plate 3 is adapted to separate the air within the gas turbine. The generator assembly is disposed within the outer casing 1 and at the outlet end of the gas turbine. The generator assembly includes a power turbine 5 and a generator 6. The power turbine 5 is connected to the generator 6. The gas from the gas turbine is adapted to drive the power turbine 5 to rotate and generate electricity from the generator 6.

[0031] Specifically, in Figure 1 In the figure, the gas turbine and the generator assembly are both arranged in the outer casing 1, the gas turbine is arranged at the left end of the generator assembly, and the left end of the gas turbine is the air inlet end. The air enters the cavity between the gas generator rotor 2 and the outer casing 1, and then the air is divided into two parts by the partition plate 3 arranged in the cavity. Part of the air enters the combustion chamber 4 surrounded by the partition plate 3 and the gas generator rotor 2, and reacts to provide power for the gas generator rotor 2, so that the gas generator rotor 2 starts to rotate, and then the gas generated in the combustion chamber 4 flows to the power turbine 5, and the other part of the air mixes with the gas and flows to the power turbine 5 together. At this time, the air can absorb part of the heat of the gas, thereby reducing the temperature of the gas, so that the temperature of the gas received by the power turbine 5 is reduced, and the power turbine 5 starts to rotate under the action of the gas, thereby driving the engine to move and generate electricity.

[0032] Furthermore, the partition plate 3 is fixed to the outer casing 1 via a bracket 7 .

[0033] Furthermore, the gas turbine further includes a compressor 8 , which is arranged at the air inlet end of the gas turbine and on the gas generator rotor 2 .

[0034] Specifically, such as Figure 1 and Figure 2 As shown, compressor 8 is located at the left end of the gas turbine and installed at the left end of the gas generator rotor 2. Compressor 8 compresses air into high-pressure gas. In this embodiment, compressor 8 is larger than compressor 8 in the prior art. Because the partition plate 3 separates half of the air originally in the combustion chamber 4, this results in insufficient air in the combustion chamber 4, leading to insufficient power, reduced rotational speed of the gas generator rotor 2, and low gas output. This results in significant power loss in the power turbine 5 and reduced power generation. By increasing the size of compressor 8, more air enters the cavity, further reducing the gas temperature while maintaining the power of the power turbine 5.

[0035] Furthermore, the gas turbine also includes a gas turbine 9, which is located at the air outlet end of the gas turbine. The gas turbine 9 is fixedly arranged on the gas generator rotor 2. The gas turbine 9 is connected to the combustion chamber 4, and the gas in the combustion chamber 4 is suitable for being discharged through the gas turbine 9.

[0036] Specifically, in Figure 1 In the figure, the gas turbine 9 is arranged at the right end of the gas generator rotor 2. The rotation of the gas generator rotor 2 drives the gas turbine 9 to rotate. The left end of the gas turbine 9 is connected to the combustion chamber 4. The gas in the combustion chamber 4 is discharged to the power turbine 5 through the gas turbine 9.

[0037] Furthermore, there is a gap between the power turbine 5 and the gas turbine.

[0038] Specifically, the power turbine 5 is not connected to the gas turbine, and the power turbine 5 is aerodynamically coordinated with the gas turbine 9 .

[0039] Furthermore, the power turbine 5 is connected to the generator 6 via a power shaft 10 .

[0040] Specifically, the power turbine 5 is fixedly connected to the left end of the power shaft 10 , and the right end of the power shaft 10 is fixedly connected to the generator 6 . The power turbine 5 rotates through the power shaft 10 to drive the generator 6 to work.

[0041] Furthermore, the outer casing 1 also has an exhaust port 11, which is located on a side of the power turbine 5 away from the gas turbine.

[0042] Specifically, in Figure 1 In the figure, the exhaust port 11 is located at the right end of the power turbine 5 , and the combustion gas after driving the power turbine 5 to do work is discharged to the outside of the outer casing 1 through the exhaust port 11 .

[0043] Furthermore, the gas generator rotor 2 has a groove, and the combustion chamber 4 is located in the groove.

[0044] Specifically, in Figure 1 In the figure, the middle part of the gas generator rotor 2 has a groove, the partition plate 3 is arranged above the groove, and the partition plate 3 and the groove form a combustion chamber 4, and the right end of the partition plate 3 extends to the air outlet end of the gas turbine.

[0045] Preferably, in this embodiment, the generator 6 is a high-speed permanent magnet generator 6 .

[0046] Furthermore, the diameter of the power turbine 5 is larger than the diameter of the gas turbine 9 .

[0047] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A gas turbine power generation device, characterized in that: include: Outer casing (1); A gas turbine is arranged in the outer casing (1), the gas turbine includes a gas generator rotor (2), a cavity is provided between the gas generator rotor (2) and the outer casing (1), a partition plate (3) is provided between the gas generator rotor (2) and the outer casing (1) for partitioning the cavity, a combustion chamber (4) is formed between the partition plate (3) and the gas generator rotor (2), the partition plate (3) is suitable for separating air in the gas turbine, a part of the air enters the combustion chamber (4) for reaction, and the other part of the air flows toward the power turbine (5) and is mixed with the gas discharged from the combustion chamber (4) and flows together to the power turbine (5); A generator assembly is arranged in the outer casing (1) and located at the air outlet end of the gas turbine. The generator assembly includes a power turbine (5) and a generator (6). The power turbine (5) is connected to the generator (6). The gas of the gas turbine is suitable for driving the power turbine (5) to rotate and enabling the generator (6) to generate electricity.

2. The gas turbine power generation device according to claim 1, characterized in that: The partition plate (3) is fixed to the outer casing (1) via a bracket (7).

3. The gas turbine power generation device according to claim 1, characterized in that: The gas turbine further comprises a compressor (8), wherein the compressor (8) is arranged at the air inlet end of the gas turbine, and the compressor (8) is arranged on the gas generator rotor (2).

4. The gas turbine power generation device according to claim 3, characterized in that: The gas turbine further comprises a gas turbine (9), the gas turbine (9) being located at the air outlet end of the gas turbine, the gas turbine (9) being fixedly arranged on the gas generator rotor (2), the gas turbine (9) being connected to the combustion chamber (4), and the gas in the combustion chamber (4) being suitable for being discharged through the gas turbine (9).

5. The gas turbine power generation device according to claim 1, characterized in that: There is a gap between the power turbine (5) and the gas turbine.

6. The gas turbine power generation device according to claim 5, characterized in that: The power turbine (5) is connected to the generator (6) via a power shaft (10).

7. The gas turbine power generation device according to any one of claims 1 to 6, characterized in that: The outer casing (1) further comprises an exhaust port (11), and the exhaust port (11) is located on a side of the power turbine (5) away from the gas turbine.

8. The gas turbine power generation device according to claim 7, characterized in that: The gas generator rotor (2) has a groove, and the combustion chamber (4) is located in the groove.

9. The gas turbine power generation device according to claim 1, characterized in that: The generator (6) is a high-speed permanent magnet generator (6).

10. The gas turbine power generation device according to claim 4, characterized in that: The diameter of the power turbine (5) is larger than the diameter of the gas turbine (9).

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