Gas turbine and power device with same

Abstract

The utility model discloses a gas turbine and a power device with the same. The gas turbine comprises a generator, a combustion chamber, a gas compressor and a turbine, the combustion chamber has a combustion chamber inlet and a combustion chamber outlet; an air outlet of the compressor communicates with an inlet of the combustion chamber; an air inlet of the turbine communicates with an outlet of the combustion chamber; in the axial direction of the generator, the gas compressor and the turbine are arranged at the two ends of the generator respectively, and the rotation axis of a rotor of the generator, the rotation axis of a gas compressor impeller of the gas compressor and the rotation axis of a turbine impeller of the turbine are collinear. According to the gas turbine, continuity and high efficiency in the energy conversion process are good, the radial size can be reduced structurally, and miniaturization design of the gas turbine is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of power devices, in particular to a gas turbine and a power device having the same. Background Art

[0002] A gas turbine is an internal combustion power mechanical device. The operating principle of a gas turbine is to use the fuel combustion products as a working fluid, allowing them to continuously flow into the impeller of the gas turbine, driving the impeller to rotate, thereby converting the chemical energy of the fuel into mechanical energy.

[0003] In the related technologies, the gas turbine has a relatively complex structure and a large size, which is not conducive to its application in passenger cars. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a gas turbine, which has good continuity and high efficiency in the energy conversion process and can reduce the radial size in structure, which is conducive to the miniaturization design of the gas turbine.

[0005] According to an embodiment of the utility model, the gas turbine includes: a generator; a combustion chamber, the combustion chamber having a combustion chamber inlet and a combustion chamber outlet; a compressor, the air outlet of the compressor is connected to the combustion chamber inlet; a turbine, the air inlet of the turbine is connected to the combustion chamber outlet; wherein, in the axial direction of the generator, the compressor and the turbine are respectively arranged at two ends of the generator, and the rotation axis of the rotor of the generator, the rotation axis of the compressor impeller of the compressor and the rotation axis of the turbine impeller of the turbine are collinear.

[0006] According to the gas turbine of the embodiment of the utility model, by arranging the compressor and the turbine at the two ends of the generator respectively, and making the rotation axis of the rotor of the generator, the rotation axis of the compressor impeller of the compressor and the rotation axis of the turbine impeller of the turbine collinear, the continuity and high efficiency in the energy conversion process can be better guaranteed, and a complete working cycle from air compression, combustion to electrical energy generation can be achieved. In addition, by arranging the compressor and the turbine at the two ends of the generator respectively, the radial dimensions of the compressor, the turbine and the generator after assembly can be better reduced, which is beneficial to the assembly of the gas turbine.

[0007] In addition, the gas turbine according to the utility model may also have the following additional technical features:

[0008] In some embodiments, the combustion chamber is located above at least one of the generator, the compressor and the turbine, and the straight line along the length direction of the combustion chamber is perpendicular to the rotation axis of the rotor of the generator.

[0009] In some embodiments, the gas turbine further comprises: a regenerator connected between the air outlet of the compressor and the inlet of the combustion chamber.

[0010] In some embodiments, the regenerator extends in a direction parallel to a rotation axis of the rotor of the generator and is located on one side in a radial direction of the generator.

[0011] In some embodiments, a first pipeline and a second pipeline are provided in the regenerator, wherein the first pipeline connects the air outlet of the compressor and the inlet of the combustion chamber, and the second pipeline connects the air outlet of the turbine and the exhaust pipe, wherein a common wall is provided between the first pipeline and the second pipeline.

[0012] In some embodiments, the turbine includes a turbine housing, a turbine impeller and a turbine shaft, the turbine impeller is installed in the turbine housing, one end of the turbine shaft is fixedly connected to the turbine impeller, and the other end extends out of the turbine housing and is transmission-connected to the generator.

[0013] In some embodiments, in the first direction, the turbine shaft is inserted into the generator, and the rotor of the generator is sleeved on the turbine shaft and is drivingly connected to the turbine shaft.

[0014] In some embodiments, the compressor includes a compressor casing and a compressor impeller, the compressor impeller is installed in the compressor casing, and the turbine shaft extends out of the generator and into the compressor casing to be drivingly connected to the compressor impeller.

[0015] In some embodiments, the gas turbine further includes: a first connecting pipe, which is connected between the first pipeline and the combustion chamber inlet; a second connecting pipe, which is connected between the combustion chamber outlet and the air inlet of the turbine; and a third connecting pipe, which is connected between the air outlet of the turbine and the second pipeline.

[0016] In some embodiments, the gas turbine further includes an air filter disposed at an air inlet of the compressor.

[0017] The utility model also provides a power device having the above embodiment.

[0018] The power device according to the embodiment of the utility model comprises: the gas turbine of the above embodiment. By arranging the gas turbine of the above embodiment, the installation space occupied by the power device can be reduced.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a top view of a gas turbine according to an embodiment of the utility model;

[0021] Figure 2 is a front view of a gas turbine according to an embodiment of the utility model;

[0022] Figure 3 is a right side view of a gas turbine according to an embodiment of the utility model;

[0023] Figure 4 is a schematic diagram of a compressor of a gas turbine according to an embodiment of the utility model;

[0024] Figure 5 is a schematic diagram of a turbine of a gas turbine according to an embodiment of the utility model;

[0025] Figure 6 It is a cross-sectional view of a generator, a compressor impeller, a turbine impeller, and a turbine shaft of a gas turbine according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100. Gas turbine;

[0028] 1. Generator; 11. Rotor; 12. Stator;

[0029] 2. Combustion chamber;

[0030] 3. compressor; 31. compressor housing; 32. compressor impeller;

[0031] 4. turbine; 41. turbine housing; 42. turbine impeller; 43. turbine shaft;

[0032] 5. Regenerator; 6. First connecting pipe; 7. Second connecting pipe; 8. Third connecting pipe; 9. Air filter; 10. Exhaust pipe. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Reference below Figure 1-Figure 6 A gas turbine 100 according to an embodiment of the present invention is described.

[0038] like Figures 1 to 6 As shown, the gas turbine 100 according to an embodiment of the utility model includes: a generator 1, a combustion chamber 2, a compressor 3, and a turbine 4; the combustion chamber 2 has a combustion chamber inlet and a combustion chamber outlet; the air outlet of the compressor 3 is connected to the combustion chamber inlet; the air inlet of the turbine 4 is connected to the combustion chamber outlet.

[0039] Furthermore, in the axial direction of the generator 1, the compressor 3 and the turbine 4 are respectively arranged at both ends of the generator 1, and the rotation axis of the rotor 11 of the generator 1, the rotation axis of the compressor impeller 32 of the compressor 3 and the rotation axis of the turbine impeller 42 of the turbine 4 are collinear. Figure 1 As shown, the direction of the rotation axis of the rotor 11 of the generator 1 can refer to the second direction, and the radial direction of the rotor 11 of the generator 1 can refer to the first direction, which will not be elaborated in the following description.

[0040] Specifically, the working process of the gas turbine 100 is as follows: the compressor impeller 32 compresses the external air and increases its pressure by rotating at high speed; then, the high-pressure air enters the combustion chamber 2, where it is mixed with the fuel and burned to produce high-temperature and high-pressure combustion gas; then, these combustion gases drive the turbine impeller 42 to rotate, and the turbine impeller 42 is connected to the compressor impeller 32 through the same shaft, so the rotation of the turbine impeller 42 will drive the compressor 3 to continue working; finally, part of the power of the turbine 4 is transmitted to the rotor 11 of the generator 1 through the transmission device, so that the rotor 11 of the generator 1 rotates to generate electrical energy. By making the rotation axis of the rotor 11 of the generator 1, the rotation axis of the compressor impeller 32 of the compressor 3, and the rotation axis of the turbine impeller 42 of the turbine 4 collinear, the energy conversion efficiency and the equipment operation stability can be improved.

[0041] Furthermore, by arranging the compressor 3 and the turbine 4 at the two ends of the generator 1, the three can be assembled after being produced separately. Compared with the assembly method of integrating the compressor 3, the turbine 4 and the generator 1 in a housing in the related art, the above-mentioned arrangement of the present application can reduce the production cost and assembly difficulty of the gas turbine 100. Moreover, by arranging the compressor 3 and the turbine 4 at the two ends of the generator 1, the continuity and efficiency of the energy conversion process can be better guaranteed, and a complete working cycle from air compression, combustion work to electric energy generation can be realized. In addition, by arranging the compressor 3 and the turbine 4 at the two ends of the generator 1, the radial dimensions of the compressor 3, the turbine 4 and the generator 1 after assembly can be better reduced, thereby facilitating the assembly of the gas turbine 100.

[0042] Therefore, according to the gas turbine 100 of the embodiment of the utility model, by arranging the compressor 3 and the turbine 4 at the two ends of the generator 1 respectively, and making the rotation axis of the rotor 11 of the generator 1, the rotation axis of the compressor impeller 32 of the compressor 3 and the rotation axis of the turbine impeller 42 of the turbine 4 collinear, the continuity and high efficiency in the energy conversion process can be better guaranteed, and the complete working cycle from air compression, combustion work to electric energy generation can be realized. In addition, by arranging the compressor 3 and the turbine 4 at the two ends of the generator 1 respectively, the radial dimensions of the compressor 3, the turbine 4 and the generator 1 after assembly can be better reduced, which is beneficial to the assembly of the gas turbine 100.

[0043] In some embodiments of the present invention, the combustion chamber 2 is located above at least one of the generator 1, the compressor 3 and the turbine 4. By making the combustion chamber 2 located above at least one of the generator 1, the compressor 3 and the turbine 4, the compactness of the structure of the gas turbine 100 can be improved, and the size of the gas turbine 100 in the direction of the rotation axis of the rotor 11 of the generator 1 can also be reduced, which is conducive to the miniaturized design of the gas turbine 100.

[0044] In one example, the combustion chamber 2 may be located directly above the generator 1 ; in one example, the combustion chamber 2 may be located directly above the compressor 3 ; in one example, the combustion chamber 2 may be located directly above the turbine 4 .

[0045] According to the gas turbine 100 of the embodiment of the utility model, by arranging the compressor 3 and the turbine 4 at the two ends of the generator 1 respectively, and making the rotation axis of the rotor 11 of the generator 1, the rotation axis of the compressor impeller 32 of the compressor 3 and the rotation axis of the turbine impeller 42 of the turbine 4 collinear, the continuity and high efficiency in the energy conversion process can be better guaranteed, and a complete working cycle from air compression, combustion to electrical energy generation can be achieved. By making the combustion chamber 2 located above at least one of the generator 1, the compressor 3 and the turbine 4, the compactness of the structure of the gas turbine 100 can be better improved, and the size of the gas turbine 100 in the direction of the rotation axis of the rotor 11 of the generator 1 can also be reduced, which is conducive to the miniaturized design of the gas turbine 100.

[0046] In one embodiment of the utility model, the straight line along the length direction of the combustion chamber 2 is perpendicular to the rotation axis of the rotor of the generator 1, thereby facilitating the connection of the pipelines of the combustion chamber 2. At the same time, from the perspective of spatial layout, such a design ensures the continuity of energy transfer.

[0047] In one embodiment of the present invention, the gas turbine 100 further includes: a regenerator 5 , which is connected between the air outlet of the compressor 3 and the inlet of the combustion chamber 2 .

[0048] In this embodiment, the gas turbine 100 can convert the chemical energy of the fuel into electrical energy to supply power to the power device. When the gas turbine 100 is working, the compressor 3 supercharges the sucked air and delivers it to the combustion chamber 2 through the regenerator 5; when the supercharged air passes through the regenerator 5, the regenerator 5 can preheat the air to increase the temperature in the combustion chamber 2 and promote the ignition of the fuel. At the same time, it can also improve or strengthen the combustion of the fuel and ensure the ignition stability under low load.

[0049] Furthermore, after the fuel and air in the combustion chamber 2 are fully mixed and burned, a large amount of high-temperature and high-pressure gas will be generated. A large amount of high-temperature and high-pressure gas enters the turbine 4 through the air inlet of the turbine 4 to drive the operation of the turbine 4; the generator 1 and the compressor 3 are both connected to the turbine 4 in a transmission manner, and the running turbine 4 can drive the generator 1 and the compressor 3 to operate synchronously, so that the generator 1 continues to generate electricity and the compressor 3 continues to pressurize and transport the air.

[0050] In one embodiment of the utility model, the regenerator 5 extends in a direction parallel to the rotation axis of the rotor 11 of the generator 1 and is located on one side of the radial direction of the generator 1. Therefore, by arranging the regenerator 5 in parallel and spaced apart on one side of the generator 1, the overall length of the gas turbine 100 in a single direction can be effectively shortened, and the overall volume of the gas turbine 100 can be optimized, which is beneficial to the arrangement of the gas turbine 100 on a small power device.

[0051] In a specific embodiment of the present invention, Figures 1 to 6 As shown, a first pipeline and a second pipeline are arranged in the regenerator 5, the first pipeline connects the air outlet of the compressor 3 and the inlet of the combustion chamber, and the second pipeline connects the air outlet of the turbine 4 and the exhaust pipe 10, wherein a common wall is provided between the first pipeline and the second pipeline.

[0052] In a specific embodiment, the first pipeline and the second pipeline are both independently arranged heat exchange pipelines, one end of the first pipeline is connected to the air outlet of the compressor 3, and the other end is connected to the combustion chamber inlet, one end of the second pipeline is connected to the air outlet of the turbine 4, and the other end is connected to the exhaust pipe 10, wherein in the regenerator 5, part of the pipe wall of the first pipeline and part of the wall of the second pipeline are in contact, and the contacting wall surface is the common wall surface between the first pipeline and the second pipeline, so that the high-temperature exhaust gas in the second pipeline can exchange heat with the air in the first pipeline through the contacting wall surface to preheat the air in the first pipeline.

[0053] In a specific embodiment, part of the wall surface of the first pipeline and part of the wall surface of the second pipeline overlap, and the overlapping wall surface is the common wall surface between the first pipeline and the second pipeline. In this way, the high-temperature exhaust gas in the second pipeline can exchange heat with the air in the first pipeline through the overlapping wall surface to preheat the air in the first pipeline.

[0054] In a specific embodiment, a heat exchange pipe is provided inside the regenerator 5, and a middle partition is provided inside the heat exchange pipe. The middle partition divides the interior of the heat exchange pipe into a first pipe and a second pipe. The middle partition is a common wall surface of the first pipe and the second pipe. In this way, the high-temperature exhaust gas in the second pipe can exchange heat with the air in the first pipe through the middle partition to preheat the air in the first pipe.

[0055] In a specific embodiment of the present invention, Figures 1 to 6 As shown, in the third direction, the combustion chamber 2 is spaced apart from the generator 1 and the regenerator 5, and the first direction, the second direction and the third direction are perpendicular to each other. In this way, the combustion chamber 2, the regenerator 5, the generator 1, the compressor 3 and the turbine 4 are arranged more compactly in space and are closer to each other, which can further shorten the overall length of the gas turbine 100 and further improve the degree of integration of the gas turbine 100, which is more conducive to the miniaturized design of the gas turbine 100.

[0056] In one embodiment of the present invention, Figures 1 to 6 As shown, the turbine 4 includes a turbine housing 41, a turbine impeller 42 and a turbine shaft 43. The turbine impeller 42 is installed in the turbine housing 41. One end of the turbine shaft 43 is fixedly connected to the turbine impeller 42, and the other end extends out of the turbine housing 41 and is transmission-connected to the generator 1.

[0057] In this embodiment, when the high-temperature and high-pressure gas in the combustion chamber 2 enters the turbine 4, the high-temperature and high-pressure gas can drive the turbine impeller 42 to rotate, so that the turbine impeller 42 can drive the generator 1 to operate through the turbine shaft 43, so that the generator 1 generates electricity.

[0058] Reference Figure 6 As shown, in the first direction, the turbine shaft 43 is inserted into the generator 1, and the rotor 11 of the generator 1 is sleeved on the turbine shaft 43 and is transmission-connected to the turbine shaft 43. In this way, when the turbine shaft 43 rotates, it can drive the rotor 11 of the generator 1 to rotate synchronously, so that the generator 1 generates electricity.

[0059] In a specific embodiment of the present invention, Figures 1 to 6 As shown, the compressor 3 includes a compressor housing 31 and a compressor impeller 32 . The compressor impeller 32 is installed in the compressor housing 31 . The turbine shaft 43 extends out of the generator 1 and extends into the compressor housing 31 to be drivingly connected to the compressor impeller 32 .

[0060] In this specific embodiment, the turbine 4, the generator 1 and the compressor 3 are connected by a turbine shaft 43. This not only shortens the transmission distance between the three, effectively improving the transmission efficiency, but also improves the degree of integration, which is conducive to the miniaturized design of the gas turbine 100.

[0061] In a specific embodiment of the present invention, Figures 1 to 6As shown, the gas turbine 100 also includes: a first connecting pipe 6, a second connecting pipe 7 and a third connecting pipe 8, the first connecting pipe 6 is connected between the first pipeline and the combustion chamber inlet; the second connecting pipe 7 is connected between the combustion chamber outlet and the air inlet of the turbine 4; the third connecting pipe 8 is connected between the air outlet of the turbine 4 and the second pipeline.

[0062] Reference Figures 1 to 3 As shown, the first pipeline and the combustion chamber 2 are connected via the first connecting pipe 6, the combustion chamber outlet and the air inlet of the turbine 4 are connected via the second connecting pipe 7, and the air outlet of the turbine 4 and the second pipeline are connected via the third connecting pipe 8. In this way, by providing the first connecting pipe 6, the second connecting pipe 7 and the third connecting pipe 8, the pipeline connection between the regenerator 5, the combustion chamber 2 and the turbine 4 can be facilitated. At the same time, since the regenerator 5, the combustion chamber 2 and the turbine 4 are connected via the connecting pipe, the position adjustment of the regenerator 5, the combustion chamber 2 and the turbine 4 can be achieved by adjusting the length and direction of the connecting pipe, thereby effectively enhancing the adaptability of the gas turbine 100.

[0063] In one embodiment of the present invention, Figures 1 to 6 As shown, the gas turbine 100 further includes an air filter 9, which is arranged at the air inlet of the compressor 3. The air filter 9 can effectively filter the air, effectively reduce impurities in the air, and prevent foreign matter from entering the compressor 3.

[0064] In a specific embodiment, a three-way catalytic device and a muffler are provided on the exhaust pipe 10, wherein the three-way catalytic device can effectively purify the exhaust gas discharged by the turbine 4, thereby reducing the emission of harmful substances in the exhaust gas; and the muffler can effectively reduce the exhaust noise.

[0065] The utility model also provides a power device having the above embodiment.

[0066] The power device according to the embodiment of the utility model comprises: the gas turbine 100 of the above embodiment. By providing the gas turbine 100 of the above embodiment, the installation space occupied by the power device can be reduced.

[0067] Other structures and operations of the gas turbine 100 and the power device according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0069] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gas turbine, characterized in that: include: dynamo; a combustion chamber having a combustion chamber inlet and a combustion chamber outlet; A compressor, wherein an air outlet of the compressor is connected to an inlet of the combustion chamber; A turbine, wherein the air inlet of the turbine is connected to the outlet of the combustion chamber; wherein, in the axial direction of the generator, the compressor and the turbine are respectively arranged at two ends of the generator, and the rotation axis of the rotor of the generator, the rotation axis of the compressor impeller of the compressor and the rotation axis of the turbine impeller of the turbine are collinear.

2. The gas turbine according to claim 1, characterized in that The combustion chamber is located above at least one of the generator, the compressor and the turbine, and a straight line in which a length direction of the combustion chamber is located is perpendicular to a rotation axis of a rotor of the generator.

3. The gas turbine according to claim 1, characterized in that Also includes: A regenerator is connected between the air outlet of the compressor and the inlet of the combustion chamber.

4. The gas turbine according to claim 3, characterized in that The regenerator extends in a direction parallel to a rotation axis of the rotor of the generator and is located on one side in a radial direction of the generator.

5. The gas turbine according to claim 3, characterized in that A first pipeline and a second pipeline are arranged in the regenerator, wherein the first pipeline connects the air outlet of the compressor and the inlet of the combustion chamber, and the second pipeline connects the air outlet of the turbine and the exhaust pipe, wherein a common wall is provided between the first pipeline and the second pipeline.

6. The gas turbine according to claim 1, characterized in that The turbine comprises a turbine housing, a turbine impeller and a turbine shaft. The turbine impeller is installed in the turbine housing. One end of the turbine shaft is fixedly connected to the turbine impeller, and the other end extends out of the turbine housing and is drivingly connected to the generator.

7. The gas turbine according to claim 6, characterized in that The turbine shaft is inserted into the generator, and the rotor of the generator is sleeved on the turbine shaft and is drivingly connected to the turbine shaft.

8. The gas turbine according to claim 6, characterized in that The compressor comprises a compressor casing and a compressor impeller, wherein the compressor impeller is installed in the compressor casing, and the turbine shaft extends out of the generator and into the compressor casing to be drivingly connected with the compressor impeller.

9. The gas turbine according to claim 1, characterized in that It also includes an air filter, which is arranged at the air inlet of the compressor.

10. A power device, characterized in that: A gas turbine comprising any one of claims 1-9.

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