Micro gas turbine generator set

Abstract

The invention discloses a micro gas turbine generator set, and relates to the field of gas turbine generator devices.The micro gas turbine generator set comprises a generator body, a gas inlet is formed in one end of the generator body, the end of the gas inlet is connected with a gas feeding pipe, and the gas feeding pipe is composed of a fixing pipe, a gas injection assembly and a connecting flange; and the fixed pipe is fixedly connected with the gas inlet through the connecting flange. According to the micro gas turbine generator set, fuel gas sprayed out through the discharging holes in different directions can interact in the combustion cavity to form a uniform flow field, the fuel gas can be gradually diffused and fill the whole combustion cavity under the action of the flow field, dead angles and non-uniform areas of fuel gas distribution are reduced, fuel gas backflow is prevented, and the service life of the fuel gas turbine generator set is prolonged. Therefore, the stability of airflow in the combustion cavity can be maintained, it is guaranteed that the combustion process is carried out according to the design direction and mode, the problems of unstable combustion, even backfire and the like caused by gas backflow are solved, and the outflow amount of gas can be accurately controlled.

Description

Technical Field

[0001] The invention relates to the technical field of gas turbine generator devices, in particular to a micro gas turbine generator set. Background Art

[0002] In the field of energy and power, engine units, as important power output equipment, are widely used in multiple scenarios such as industrial production, transportation, and emergency power supply. However, existing engine units still have a series of problems that need to be solved during use.

[0003] The gas and air mixing effect of existing engine units is poor. The traditional gas injection method often makes the gas enter the combustion chamber from a single direction, which makes it difficult for the gas and air to be fully mixed. It is easy for the local gas concentration to be too high or too low, resulting in incomplete combustion and low combustion efficiency. In addition, the existing engine units are not flexible enough in gas flow control. Most engine units find it difficult to accurately adjust the gas flow according to different working conditions, such as changes in unit load, and cannot achieve flexible gas flow control, resulting in the engine unit being unable to always maintain the best operating state, low energy utilization efficiency, and increased operating costs. In view of the shortcomings of the existing technology, we propose a micro gas turbine generator set to solve the above problems. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a micro gas turbine generator set, comprising a generator body, one end of the generator body is provided with a gas inlet, the end of the gas inlet is connected to a gas feed pipe, the gas feed pipe is composed of a fixed pipe, an injection assembly and a connecting flange, the fixed pipe is fixedly connected to the gas inlet through the connecting flange, and the injection assembly is arranged inside the fixed pipe; The jet assembly includes an air inlet pipe, a filter screen, a discharge plate and a feed plate, the air inlet pipe is detachably mounted inside the fixed pipe, the filter screen is detachably mounted on the outer wall of the air inlet pipe, the discharge plate is fixedly mounted on the outer wall on the other side of the air inlet pipe, the feed plate is fixedly mounted inside the air inlet pipe, the interior of the discharge plate is respectively provided with an annular first discharge hole, a second discharge hole and a third discharge hole, the interior of the feed plate is respectively provided with a first feed port, a second feed port and a third feed port, the first discharge hole, the second discharge hole and the third discharge hole are respectively connected to the first feed port, the second feed port and the third feed port through the air outlet pipe, the tops of the first feed port, the second feed port and the third feed port are respectively provided with adjustment components, and multiple groups of the adjustment components respectively adjust the sizes of the first feed port, the second feed port and the third feed port.

[0005] Preferably, the second discharge hole is located outside the first discharge hole, the third discharge hole is located outside the second discharge hole, a threaded cylinder is fixedly connected inside the fixed pipe, the air inlet pipe is threadedly connected inside the threaded cylinder, and a fixed cylinder is fixedly connected to the outer wall of the feed plate.

[0006] Preferably, a second fixing ring is fixedly installed on the inner peripheral wall of the front end of the air outlet pipe, a first fixing ring is fixedly installed inside the air outlet pipe, a sealing plate is attached to the outer wall of the second fixing ring, and a first spring is fixedly installed between the sealing plate and the first fixing ring.

[0007] Preferably, the adjusting assembly includes a sealing ring, a connecting ring, a connecting plate, a driving gear ring, a driving gear, a driving shaft, a driving knob, a locking gear, a locking tooth plate, a second spring and a driving rod. Multiple groups of the sealing rings are respectively arranged on the outer walls of the first feed port, the second feed port and the third feed port.

[0008] Preferably, the connecting ring is fixedly installed on the outer peripheral wall of the annular sealing ring. Multiple groups of the driving gear rings are installed on the outer wall of the discharge plate. Multiple groups of the driving gear rings are installed in a stacked manner. The connecting plate is fixedly installed between the driving gear ring and the connecting ring.

[0009] Preferably, multiple groups of the driving gears are equidistantly distributed along the inner peripheral wall of the air inlet pipe. The driving gear ring passes through the fixed cylinder and meshes with the driving gear. The driving shaft is fixedly installed on the top of the driving gear. One end of the driving shaft passes through the air inlet pipe and is fixedly connected to the driving knob.

[0010] Preferably, the locking gear is fixedly sleeved on the outer peripheral wall of the driving shaft. A locking tooth plate is meshed with one side of the locking gear. A second spring is fixedly connected between the locking tooth plate and the fixed cylinder.

[0011] Preferably, a driving rod is fixedly connected to the outer wall of the locking tooth plate. One end of the driving rod passes through the outer wall of the fixed cylinder and is fixedly connected to a pull ring.

[0012] The present invention discloses a micro gas turbine generator set, and the beneficial effects thereof are as follows: 1. In this micro gas turbine generator set, by providing three discharge holes with different opening directions, the gas is ejected from multiple directions, which can better mix with the air entering the combustion chamber. The uniform mixing of the gas and the air helps to achieve more sufficient and stable combustion. The interaction of the gas flows in different directions can make the combustion area wider and more uniform, reduce the situation of local overheating or incomplete combustion, improve the combustion efficiency, reduce pollutant emissions, and optimize the combustion effect. The gas ejected from the discharge holes with different orientations will interact with each other in the combustion chamber to form a relatively uniform flow field. Under the action of the flow field, the gas will gradually diffuse and fill the entire combustion chamber, reducing the dead corners and uneven areas of the gas distribution; 2. The micro gas turbine generator set connects the feeding plate and the discharging plate through an air outlet pipe, and installs a sealing plate and a first spring inside the air outlet pipe. Through the cooperation between the sealing plate and the first spring, it can ensure that the gas can only flow from the air outlet pipe to the discharging hole and then enter the combustion chamber, preventing the gas from flowing back. This helps to maintain the stability of the air flow in the combustion chamber, ensures that the combustion process proceeds in the designed direction and manner, and avoids problems such as unstable combustion or even flashback caused by the gas flowing back. 3. The micro gas turbine generator set is respectively provided with adjusting components at three groups of feeding ports, which can respectively control the shielding degree of the sealing rings for multiple groups of discharging holes through multiple groups of adjusting components, and can accurately control the outflow rate of the gas. According to different working conditions, such as the load change of the unit, the gas flow can be flexibly adjusted to keep the micro gas turbine generator set in the best operating state, improve the energy utilization efficiency. By optimizing the gas flow and distribution, problems such as local overheating in the combustion chamber and uneven gas erosion are avoided, reducing the thermal stress and wear on the combustion chamber wall and other components, thereby extending the service life of the equipment and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an exploded structure diagram of the fixed pipe and the jet component of the present invention; Figure 3 It is an exploded structure diagram of the filter net plate and the feeding pipe of the present invention; Figure 4 It is a sectional view of the inside of the fixed pipe of the present invention; Figure 5 It is a schematic diagram of the connection structure between the feeding pipe and the discharging plate of the present invention; Figure 6 It is a sectional view of the inside of the feeding pipe and the discharging plate of the present invention; Figure 7 It is a schematic diagram of the connection structure between the discharging plate and the feeding plate of the present invention; Figure 8 It is a schematic diagram of the internal structure of the feeding pipe of the present invention; Figure 9 It is a schematic diagram of the connection structure between multiple groups of adjusting components and the discharging plate of the present invention; Figure 10 It is a schematic diagram of the adjusting structure of the present invention; Figure 11 For the present invention Figure 6 an enlarged view of part A in the present invention.

[0015] In the figure: 1, generator main body; 2, gas inlet; 3, gas feed pipe; 31, fixed pipe; 311, threaded cylinder; 32, jet assembly; 321, intake pipe; 322, filter plate; 323, discharge plate; 324, feed plate; 33, connecting flange; 4, first discharge hole; 41, first feed port; 42, adjusting assembly; 421, sealing ring; 422, connecting ring; 423, connecting plate; 424, driving gear ring; 425, driving gear; 426, driving shaft; 427, driving knob; 428, locking gear; 429, locking tooth plate; 430, second spring; 431, driving rod; 5, second discharge hole; 51, second feed port; 6, third discharge hole; 61, third feed port; 7, outlet pipe; 71, first fixing ring; 72, first spring; 73, sealing plate; 74, second fixing ring; 8, fixing cylinder. Specific embodiments

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0018] An embodiment of the present invention discloses a micro gas turbine generator set.

[0019] As shown in the attached Figures 1-11 figure, it includes a generator main body 1. One end of the generator main body 1 is provided with a gas inlet 2. The end of the gas inlet 2 is connected with a gas feed pipe 3. The gas feed pipe 3 is connected with a fuel jet device. The gas feed pipe 3 is composed of a fixed pipe 31, a jet assembly 32 and a connecting flange 33. The fixed pipe 31 is fixedly connected with the gas inlet 2 through the connecting flange 33. The jet assembly 32 is arranged inside the fixed pipe 31; The jet component 32 includes an intake pipe 321, a filter screen plate 322, a discharge plate 323 and a feed plate 324. The intake pipe 321 is detachably installed inside the fixed pipe 31. The filter screen plate 322 is detachably installed on the outer wall of the intake pipe 321. The discharge plate 323 is fixedly installed on the outer wall of the other side of the intake pipe 321. The feed plate 324 is fixedly installed inside the intake pipe 321. Annular first discharge holes 4, second discharge holes 5 and third discharge holes 6 are respectively formed inside the discharge plate 323. First feed ports 41, second feed ports 51 and third feed ports 61 are respectively formed inside the feed plate 324. The first discharge holes 4, the second discharge holes 5 and the third discharge holes 6 are respectively communicated with the first feed ports 41, the second feed ports 51 and the third feed ports 61 through air pipes 7. Adjusting components 42 are respectively arranged at the tops of the first feed ports 41, the second feed ports 51 and the third feed ports 61. Multiple groups of adjusting components 42 respectively adjust the sizes of the first feed ports 41, the second feed ports 51 and the third feed ports 61. The three groups of adjusting components 42 respectively correspond to the three groups of feed ports and can separately adjust the sizes of the three groups of feed ports to meet the usage requirements.

[0020] The second discharge holes 5 are located on the periphery of the first discharge holes 4, and the third discharge holes 6 are located on the periphery of the second discharge holes 5. A threaded cylinder 311 is fixedly connected inside the fixed pipe 31. The intake pipe 321 is threadedly connected inside the threaded cylinder 311. A fixed cylinder 8 is fixedly connected to the outer wall of the feed plate 324. It should be noted that the first discharge holes 4, the second discharge holes 5 and the third discharge holes 6 are all annularly and equidistantly distributed on the outer wall of the discharge plate 323, and the orientations of the three groups of discharge holes are all different. For details, please refer to the appendix Figure 6 , and the discharge holes with different opening orientations enable the gas to be ejected from multiple directions, which can better mix with the air entering the combustion chamber. The uniform mixing of the gas and the air helps to achieve more sufficient and stable combustion. The gas flows in different directions interact with each other, which can make the combustion area wider and more uniform, reduce the situation of local overheating or incomplete combustion, improve the combustion efficiency, reduce pollutant emissions, optimize the combustion effect. The gas ejected from the discharge holes with different orientations will interact with each other in the combustion chamber to form a relatively uniform flow field. Under the action of the flow field, the gas will gradually diffuse and fill the entire combustion chamber, reducing the dead corners and uneven areas of the gas distribution.

[0021] A second fixing ring 74 is fixedly installed on the inner peripheral wall at the front end of the air outlet pipe 7, and a first fixing ring 71 is fixedly installed inside the air outlet pipe 7. The outer wall of the second fixing ring 74 is attached to a sealing plate 73. A first spring 72 is fixedly installed between the sealing plate 73 and the first fixing ring 71. During use, the opening sizes of multiple feed inlets can be adjusted in advance according to the usage requirements, and the sizes of multiple feed inlets can be accurately adjusted according to actual needs, which can enable the system to avoid unnecessary energy consumption while meeting the working requirements. Under different driving conditions, such as idling, low-speed driving, high-speed driving, etc., by adjusting the sizes of the feed inlets, the intake air volume can be accurately controlled, enabling the engine to work at the optimal air-fuel ratio, thereby improving fuel utilization rate, reducing fuel consumption and exhaust emissions.

[0022] The adjusting assembly 42 includes a sealing ring 421, a connecting ring 422, a connecting plate 423, a driving gear ring 424, a driving gear 425, a driving shaft 426, a driving knob 427, a locking gear 428, a locking tooth plate 429, a second spring 430 and a driving rod 431. Multiple sealing rings 421 are respectively arranged on the outer walls of the first feed inlet 41, the second feed inlet 51 and the third feed inlet 61. When adjusting the sizes of multiple feed inlets, taking the third feed inlet 61 as an example, first find the pull ring at the corresponding driving knob 427 and driving rod 431 of the feed inlet. First, pull the pull ring outwards, so that the driving rod 431 drives the locking tooth plate 429 to move towards the inner wall of the fixed cylinder 8, and no longer locks the locking gear 428 with the locking tooth plate 429. At this time, the second spring 430 is in a contracted state. Subsequently, by rotating the driving knob 427, the driving knob 427 and the driving shaft 426 drive the driving gear 425 to rotate on one side of the driving gear ring 424. Through the meshing action between the driving gear 425 and the driving gear ring 424, the corresponding connecting plate 423 can drive the sealing rings 421 at the tops of multiple third feed inlets 61 to rotate simultaneously. By respectively blocking and sealing multiple third feed inlets 61 with multiple sealing rings 421, the sizes of multiple third feed inlets 61 can be adjusted. When multiple sealing rings 421 are located on one side of multiple third feed inlets 61, they do not block the third feed inlets 61, resulting in a larger intake air volume of the gas. For details, please refer to the appendix Figure 9 When adjusting the sizes of the other two feed inlets, find the corresponding driving knob 427 and adjust them in the same way.

[0023] The connecting ring 422 is fixedly installed on the outer peripheral wall of the annular sealing ring 421. A plurality of driving gear rings 424 are installed on the outer wall of the discharge plate 323. The plurality of driving gear rings 424 are installed in a superimposed manner. The connecting plate 423 is fixedly installed between the driving gear ring 424 and the connecting ring 422. It should be noted that the three driving gear rings 424 are in a superimposed manner, and the sizes of the three feeding ports can be individually adjusted through the three adjusting components 42 respectively. Moreover, the heights of the three driving gears 425 are different and are respectively located on one side of the three driving gear rings 424. When adjusting the sizes of the plurality of feeding ports, the outermost connecting plate 423 slides on the outer walls of the inner plurality of sealing rings 421.

[0024] A plurality of driving gears 425 are equidistantly distributed along the inner peripheral wall of the intake pipe 321. The driving gear ring 424 passes through the fixed cylinder 8 and meshes with the driving gear 425. The driving shaft 426 is fixedly installed on the top of the driving gear 425. One end of the driving shaft 426 passes through the intake pipe 321 and is fixedly connected to the driving knob 427.

[0025] The locking gear 428 is fixedly sleeved on the outer peripheral wall of the driving shaft 426. One side of the locking gear 428 meshes with a locking tooth plate 429. A second spring 430 is fixedly connected between the locking tooth plate 429 and the fixed cylinder 8. After adjusting the size of the feeding port and releasing the pull ring, under the reset of the second spring 430, the locking tooth plate 429 can be automatically driven to mesh on one side of the locking gear 428, thereby avoiding the offset of the plurality of adjusted sealing rings 421 and ensuring that the plurality of adjusted sealing rings 421 will not be offset.

[0026] The outer wall of the locking tooth plate 429 is fixedly connected to a driving rod 431. One end of the driving rod 431 passes through the outer wall of the fixed cylinder 8 and is fixedly connected to the pull ring.

[0027] In summary, Before use, first fixedly connect the gas feeding pipe 3 to the gas inlet 2, and then connect the fuel jetting device to the gas feeding pipe 3. The fuel jetting device jets gas into the gas feeding pipe 3. Then, through the jetting component 32 inside the gas feeding pipe 3, the gas can be evenly distributed to the combustion chamber inside the generator main body 1. Then, the incoming fuel and the air entering the combustion chamber can be mixed and burned in the combustion chamber, generating high-temperature and high-pressure gas. In this process, the chemical energy of the fuel is converted into heat energy, making the gas have higher internal energy. The working process of the micro gas turbine generator set is a process of converting the chemical energy of the fuel into heat energy, then converting the heat energy into mechanical energy, and finally converting the mechanical energy into electrical energy. In this process, through the coordinated work of each component, the efficient conversion and utilization of energy are realized; During the process of admitting gas, the gas enters the interior of the fixed pipe 31. First, the filter plate 322 at the front end of the intake pipe 321 filters the impurities in the gas. Subsequently, the filtered gas enters the interior of the outlet pipe 7 through multiple groups of feed ports respectively. Finally, the gas is evenly distributed into the combustion chamber through multiple groups of first discharge holes 4, second discharge holes 5 and multiple groups of third discharge holes 6 respectively, making the mixing of the gas and air more uniform. Furthermore, when the gas enters the interior of the feed plate 324 and the outlet pipe 7 and is discharged through multiple groups of discharge holes, the cooperation between the sealing plate 73 and the first spring 72 arranged inside the outlet pipe 7 can ensure that the gas can only flow from the outlet pipe 7 to the discharge holes and then enter the combustion chamber, preventing the gas from flowing backward. This helps to maintain the stability of the gas flow in the combustion chamber, ensures that the combustion process proceeds in the designed direction and manner, and avoids problems such as unstable combustion or even flashback caused by the backward flow of the gas. When the gas enters the interior of the outlet pipe 7 through the feed plate 324, the sealing plate 73 is pushed by the gas flow to move to the right, and the first spring 72 is compressed. As a result, the sealing plate 73 can be separated from the inner wall of the second fixing ring 74, allowing the gas to be discharged through the outlet pipe 7 and multiple groups of discharge holes, and then the gas can be evenly distributed into the interior of the combustion chamber of the generator main body 1. After long-term use, it is necessary to disassemble and clean the filter plate 322. Separate the gas inlet pipe 3 from the combustion equipment, and then remove the fixing bolts at the two connecting flanges 33 to separate the gas inlet pipe 3 from the gas inlet 2. By rotating the discharge plate 323, drive the intake pipe 321 to be threadedly connected inside the threaded cylinder 311 and separate it from the interior. Subsequently, the filter plate 322 can be directly pulled outwards, separating the magnet at the filter plate 322 from the magnet on the outer wall of the intake pipe 321, and then the replacement operation of the filter plate 322 can be realized, and the impurities on the surface of the filter plate 322 can be directly cleaned without replacement. During the intake process, by arranging multiple groups of sealing rings 421 on the outer wall of the feed plate 324 and connecting the multiple groups of sealing rings 421 with the adjusting assembly 42, the degree of occlusion of the multiple groups of discharge holes by the sealing rings 421 can be controlled through the adjusting assembly 42, and the outflow rate of the gas can be accurately controlled. According to different working conditions, such as the load change of the unit, the gas flow rate can be flexibly adjusted, enabling the micro gas turbine generator set to maintain the best operating state, improving the energy utilization efficiency. By optimizing the gas flow rate and distribution, problems such as local overheating in the combustion chamber and uneven gas erosion are avoided, reducing the thermal stress and wear on the combustion chamber wall surface and other components, thereby extending the service life of the equipment and reducing the maintenance cost.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0029] In the present invention, unless otherwise clearly specified and defined, the terms "set", "install", "connect", "link", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The control mode of the present invention is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common general knowledge in the art. And the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection of the present invention will not be explained in detail.

[0031] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A micro gas turbine power generation unit, comprising a generator main body (1), one end of the generator main body (1) is provided with a gas inlet (2), and the end of the gas inlet (2) is connected with a gas feed pipe (3), characterized in that: The gas feed pipe (3) consists of a fixed pipe (31), a jet component (32) and a connecting flange (33). The fixed pipe (31) is fixedly connected to the gas inlet (2) through the connecting flange (33), and the jet component (32) is arranged inside the fixed pipe (31). The jet component (32) includes an intake pipe (321), a filter screen plate (322), a discharge plate (323) and a feed plate (324). The intake pipe (321) is detachably installed inside the fixed pipe (31), the filter screen plate (322) is detachably installed on the outer wall of the intake pipe (321), the discharge plate (323) is fixedly installed on the outer wall of the other side of the intake pipe (321), the feed plate (324) is fixedly installed inside the intake pipe (321). Annular first discharge holes (4), second discharge holes (5) and third discharge holes (6) are respectively formed inside the discharge plate (323), and first feed ports (41), second feed ports (51) and third feed ports (61) are respectively formed inside the feed plate (324). The first discharge holes (4), second discharge holes (5) and third discharge holes (6) are respectively communicated with the first feed ports (41), second feed ports (51) and third feed ports (61) through an air outlet pipe (7). Adjusting components (42) are respectively arranged at the tops of the first feed ports (41), second feed ports (51) and third feed ports (61), and the multiple groups of adjusting components (42) respectively adjust the sizes of the first feed ports (41), second feed ports (51) and third feed ports (61).

2. A micro gas turbine power generation unit according to claim 1, characterized in that: The second discharge holes (5) are located on the periphery of the first discharge holes (4), the third discharge holes (6) are located on the periphery of the second discharge holes (5), a threaded cylinder (311) is fixedly connected inside the fixed pipe (31), and the intake pipe (321) is threadedly connected inside the threaded cylinder (311). A fixed cylinder (8) is fixedly connected to the outer wall of the feed plate (324).

3. A micro gas turbine generator set according to claim 2, characterized in that: A second fixing ring (74) is fixedly installed on the inner peripheral wall of the front end of the air outlet pipe (7), a first fixing ring (71) is fixedly installed inside the air outlet pipe (7), a sealing plate (73) is attached to the outer wall of the second fixing ring (74), and a first spring (72) is fixedly installed between the sealing plate (73) and the first fixing ring (71).

4. A micro gas turbine generator set according to claim 1, characterized in that: The adjusting component (42) includes a sealing ring (421), a connecting ring (422), a connecting plate (423), a driving gear ring (424), a driving gear (425), a driving shaft (426), a driving knob (427), a locking gear (428), a locking tooth plate (429), a second spring (430) and a driving rod (431). The multiple groups of sealing rings (421) are respectively arranged on the outer walls of the first feed ports (41), second feed ports (51) and third feed ports (61).

5. A micro gas turbine generator set according to claim 4, characterized in that: The connecting ring (422) is fixedly installed on the outer peripheral wall of the annular sealing ring (421). Multiple groups of the driving gear rings (424) are installed on the outer wall of the discharge plate (323). The multiple groups of the driving gear rings (424) are installed in a superimposed manner. The connecting plate (423) is fixedly installed between the driving gear ring (424) and the connecting ring (422).

6. A micro gas turbine power generation unit according to claim 5, characterized in that: Multiple groups of the driving gears (425) are equidistantly distributed along the inner peripheral wall of the intake pipe (321). The driving gear ring (424) passes through the fixed cylinder (8) and meshes with the driving gear (425). The driving shaft (426) is fixedly installed on the top of the driving gear (425). One end of the driving shaft (426) passes through the intake pipe (321) and is fixedly connected to the driving knob (427).

7. A micro gas turbine power generation set according to claim 6, characterized in that: The locking gear (428) is fixedly sleeved on the outer peripheral wall of the driving shaft (426). One side of the locking gear (428) meshes with a locking tooth plate (429). A second spring (430) is fixedly connected between the locking tooth plate (429) and the fixed cylinder (8).

8. A micro gas turbine power generation unit according to claim 7, characterized in that: The outer wall of the locking tooth plate (429) is fixedly connected to a driving rod (431). One end of the driving rod (431) passes through the outer wall of the fixed cylinder (8) and is fixedly connected to a pull ring.

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