Turbine flow guide structure with inner duct
By designing a turbine guide structure with an internal channel, the high-temperature airflow is isolated by the layered flow channel and the generator is cooled, thus solving the problem of difficult cooling of turbine generators and improving the efficiency of turbine power generation devices.
Patent Information
- Application Number
- CN202520359009.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing turbine generators are directly exposed to high-temperature combustion gases, making cooling difficult. The existing side-exhaust system still results in thermal radiation effects.
Design a turbine guide structure with internal channels, including a rear guide section and a front guide section, forming a layered flow channel. Use low-temperature airflow to isolate high-temperature airflow, and use a third flow channel to cool and insulate the generator.
It effectively isolates high-temperature airflow, improves the efficiency of turbine power generation devices, and ensures the normal operation of generators through a cooling system, thus solving the problem of cooling difficulties.
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Figure CN223608595U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to aircraft power device technical field, especially relates to a turbine flow guide structure with inner channel. BACKGROUND
[0002] In the existing turbine generator rear scheme, the generator is arranged at the rear of the turbine engine, and the power turbine shaft is directly connected with the generator, which is simple and light in structure, but the generator is directly exposed to high-temperature gas, and cooling is difficult, and the existing solution is to change the turbine exhaust to a side exhaust type, that is, the high-temperature gas is discharged from the side through an elongated elbow, but this scheme still produces heat radiation that significantly affects the generator.
[0003] Based on the above reasons, a new turbine generator flow guide structure is proposed. CONTENT OF THE UTILITY MODEL
[0004] In view of the above problems, the technical purpose of the utility model is to provide a turbine flow guide structure with an inner channel.
[0005] The utility model realizes the following technical scheme:
[0006] The utility model provides a turbine flow guide structure with an inner channel, which comprises:
[0007] The turbine rear flow guide part has a first flow channel arranged in the axial direction and a second flow channel arranged in the axial direction outside the periphery of the first flow channel;
[0008] And a plurality of third flow channels connected to the outside of the turbine rear flow guide part at least pass through the second flow channel.
[0009] In some embodiments, the third flow channel extends from the outside of the turbine rear flow guide part to the pipe wall of the first flow channel.
[0010] In some embodiments, the third flow channel penetrates the second flow channel and the first flow channel, and the inside and outside of the turbine rear flow guide part are communicated.
[0011] In some embodiments, a fourth flow channel is further formed in at least part of the third flow channel, which penetrates from one side of the third flow channel and penetrates out from the other side of the third flow channel.
[0012] In some embodiments, a cable tube is further arranged in at least part of the third flow channel.
[0013] In some embodiments, a plurality of guide vanes are arranged in the first flow channel, and the guide vanes are arranged at the air inlet of the first flow channel.
[0014] In some embodiments, one end of the fourth flow channel extends out of the third flow channel, and the other end extends to the end face of the turbine rear flow guide part on the exhaust side.
[0015] In some embodiments, the middle part of the turbine rear flow guide part is further provided with a cylindrical bearing mounting seat, a seventh flow channel is formed between the bearing mounting seat and the turbine rear flow guide part, and the seventh flow channel is in communication with the third flow channel.
[0016] In some embodiments, a turbine front flow guide part is further included, a space for mounting a turbine rotor is formed between the turbine front flow guide part and the turbine rear flow guide part, the turbine front flow guide part includes a fifth flow channel in the shape of a ring in the axial direction thereof, and a plurality of sixth flow channels pass through the fifth flow channel and communicate the outside of the turbine front flow guide part with the inside thereof.
[0017] In some embodiments, a containing cavity capable of being communicated with the first flow channel is further arranged in the turbine front flow guide part, and the sixth flow channels communicate the containing cavity with the outside of the turbine front flow guide part.
[0018] The effective benefits of the utility model at least include:
[0019] The turbine flow guide structure with the internal flow channel formed by the utility model forms layered flow channels, the internal flow channel is arranged, that is, the fifth flow channel and the first flow channel are arranged to introduce low-temperature gas flow to isolate high-temperature gas flow, that is, the first flow channel of the turbine rear flow guide part is arranged to isolate the second flow channel of the external high-temperature gas flow, so as to solve the problem of high temperature of the generator, and the high-temperature and high-pressure gas flow flows along the turbine generator device in the axial direction to provide thrust; the third flow channel can conveniently cool / insulate the generator cooling pipe, cable and the like; the turbine front flow guide part can provide the required corresponding gas for the turbine rear flow guide part, and the problems existing in the current turbine exhaust mode are solved. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is the cross-sectional structure schematic view of the first kind of embodiment of the turbine flow guide structure with the internal flow channel of the utility model;
[0021] Figure 2 is the cross-sectional structure schematic view of the second kind of embodiment of the turbine flow guide structure with the internal flow channel of the utility model;
[0022] Figure 3 is the cross-sectional structure schematic view of the third kind of embodiment of the turbine flow guide structure with the internal flow channel of the utility model;
[0023] Figure 4 is the three-dimensional structure schematic view of the turbine rear flow guide part of the utility model;
[0024] Figure 5is a sectional structure diagram of one direction of the application cooperating with the gas generator and the generator installation;
[0025] Figure 6 is a structure diagram of a turbine rotor of the application. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be clearly and completely described below in combination with the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.
[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0029] The present application will be described in detail below in combination with the drawings.
[0030] As Figures 1-6 shown, the present application provides a turbine guide structure with an inner channel, comprising: a turbine rear guide part 1, having a first flow channel 101 arranged in the axial direction and a second flow channel 102 arranged in the axial direction outside the periphery of the first flow channel 101, a plurality of guide vanes 104 are arranged in the first flow channel 101, the guide vanes are arranged at the air inlet of the first flow channel 101, and a plurality of third flow channels 103 connected to the outside of the turbine rear guide part 1 at least through the second flow channel 102.
[0031] Specifically, the turbine rear guide part 1 can be a generally cylindrical shape, as Figure 4The first flow channel 101 and the second flow channel 102 are annular in cross section, and the turbine rear flow guide 1 is formed of the first flow channel 101 and the second flow channel 102 which are arranged in the axial direction. The length of the first flow channel 101 and the second flow channel 102 can be adjusted according to actual needs. The first flow channel 101 is provided with a plurality of guide vanes 104 which can straighten the airflow entering the flow channel, reduce turbulence, improve the airflow circulation efficiency and the fluid flow required by the turbine rotor, and the like. Figure 1 The third flow channel 103 is arranged in the turbine rear flow guide 1 and extends to the pipe wall of the first flow channel 101.
[0032] Further, in some embodiments, the third flow channel 103 extends from the turbine rear flow guide 1 to the pipe wall of the first flow channel 101. The third flow channel 103 can extend to the common pipe wall of the first flow channel 101 and the second flow channel 102 (as shown in FIG. 3), or extend to the inner pipe wall of the first flow channel 101 close to the axis (as shown in FIG. 4). The third flow channel 103 can be provided with a plurality of third flow channels 103, and the number thereof can be 3-6, for example, 4. Figure 2 Figure 3 The third flow channel 103 is arranged in the turbine rear flow guide 1 and extends to the pipe wall of the first flow channel 101.
[0033] In some embodiments, the third flow channel 103 penetrates the second flow channel 102 and the first flow channel 101, and connects the inside and outside of the turbine rear flow guide 1. Figure 1 Figure 5 The third flow channel 103 is arranged in the turbine rear flow guide 1 and extends to the pipe wall of the first flow channel 101.
[0034] Specifically, by the third flow channel 103, the third flow channel 103 flows from the inside of the turbine rear flow guide part 1 to the outside thereof. Because of the structure, the third flow channel 103 needs to pass through the first flow channel 101 and the second flow channel 102. The third flow channel 103 is a flat structure, which can reduce the obstruction to the airflow in the first flow channel 101 and the second flow channel 102. The third flow channel 103 can have a certain inclination with the axis direction of the turbine rear flow guide part 1. The inclination direction can be towards the air inlet side (left air inlet). The first flow channel 101, the second flow channel 102 and the third flow channel 103 are an integral structure. The number of the third flow channel 103 can be set as needed, which can be 3-8, and generally can be 4.
[0035] In some embodiments, at least part of the third flow channel 103 further forms a fourth flow channel 105. The fourth flow channel 105 penetrates from one side of the third flow channel 103 and penetrates from the other side of the third flow channel 103. Specifically, the fourth flow channel 105 is not communicated with the third flow channel 103. The fourth flow channel 105 can be used to flow the medium such as fuel oil. The fourth flow channel 105 is generally two, and can be more, which are respectively arranged in the two third flow channels 103. One fourth flow channel 105 is used as a liquid inlet pipe, and the other flow channel is used as a liquid outlet pipe, so as to form a circulation loop. The rear end of the turbine rear flow guide part 1 is connected with a generator 3. The fourth flow channel 105 is used for heat exchange and cooling of the shell of the generator 3. The third flow channel 103 can be communicated to the inside of the generator 3, so as to cool the inside of the generator 3.
[0036] In some embodiments, at least part of the third flow channel 103 further forms a fourth flow channel 105. The fourth flow channel 105 penetrates from one side of the third flow channel 103 and penetrates from the other side of the third flow channel 103. Specifically, the fourth flow channel 105 is not communicated with the third flow channel 103. The fourth flow channel 105 can be used to flow the medium such as fuel oil. The fourth flow channel 105 is generally two, and can be more, which are respectively arranged in the two third flow channels 103. One fourth flow channel 105 is used as a liquid inlet pipe, and the other flow channel is used as a liquid outlet pipe, so as to form a circulation loop. The rear end of the turbine rear flow guide part 1 is connected with a generator 3. The fourth flow channel 105 is used for heat exchange and cooling of the shell of the generator 3. The third flow channel 103 can be communicated to the inside of the generator 3, so as to cool the inside of the generator 3. Figure 1
[0037] In some embodiments, the turbine front flow guide part 2 is further included. The turbine front flow guide part 2 and the turbine rear flow guide part 1 form a space for installing a turbine rotor. Specifically, the turbine rear flow guide part 1 or the turbine front flow guide part 2 has an extended shell part, as shown in Figure 1 or Figure 3 As shown, the annular extension 108 is arranged on one side of the turbine rear guide portion 1 close to the turbine front guide portion 2 to form a space for installing the turbine rotor 4 between the turbine front guide portion 2 and the turbine rear guide portion 1. The turbine rotor 4 has a first blade group 41 and a second blade group 42, the first blade group 41 is arranged on the outer periphery of the second blade group 42, the second blade group 42 is uniformly arranged on the outer periphery of the bearing disc 44, and the outer periphery of the second blade group 42 is provided with a partition ring 43 for separating the first blade group 41 and the second blade group 42, as shown. Figure 6
[0038] In some embodiments, one end of the fourth flow channel 105 extends out of the third flow channel 103, and the other end extends to the end face of the exhaust side of the turbine rear guide portion 1. In this way, the fourth flow channel 105 can be better connected to other related components, such as the connection pipeline of the heat dissipation object of the generator 3 and the connection of the external fuel pipe.
[0039] In some embodiments, the turbine rear guide portion 1 is further provided with a cylindrical bearing mounting seat 106, and a seventh flow channel 107 is formed between the bearing mounting seat 106 and the turbine rear guide portion 1. Specifically, the bearing mounting seat 106 is used to install bearings and shafts, and the shaft is used to connect the turbine rotor 4 and the generator 3. The seventh flow channel 107 between the bearing mounting seat 106 and the turbine rear guide portion 1 can communicate with the third flow channel 103.
[0040] In some embodiments, the turbine front guide portion 2 includes a fifth flow channel 201 in the form of an annular cross section arranged in the axial direction thereof, and a plurality of sixth flow channels 202 passing through the fifth flow channel 201 and connecting the outside and the inside of the turbine front guide portion 2. The fifth flow channel 201 is arranged in the axial direction and can have a certain degree of bending. The turbine front guide portion 2 is further provided with a containing cavity 203 capable of communicating with the first flow channel 101, and the sixth flow channel 202 communicates the containing cavity 203 with the outside of the turbine front guide portion 2. In actual use, the sixth flow channel 202 can guide gas into the containing cavity 203 to provide the required gas for the turbine rotor 4.
[0041] In some embodiments, the discharge end of the fifth flow channel 201 is provided with a stator blade 204 to provide the required direction of fluid for the turbine rotor 4 to improve the turbine efficiency.
[0042] The first flow channel 101, the second flow channel 102, the third flow channel 103, the guide blade 104 and the fourth flow channel 105 are arranged as an integrated structure and can be formed by 3D printing.
[0043] The first flow channel 101 and the second flow channel 102 are arranged to separate the airflow of different temperatures, in particular, the inner first flow channel 101 is arranged to circulate low-temperature gas, and the outer second flow channel 102 is arranged to circulate high-temperature gas, the low-temperature gas in the inner side is used to isolate the high-temperature gas in the outer side, so as to control the temperature of the power generation device and the like, so that each device can operate well, the fourth flow channel 105 and other components arranged in the third flow channel 103 can also play a role in heat insulation of the other components and the gas flowing in the fourth flow channel 105, the fifth flow channel 201 of the turbine front flow guide part 2 is arranged, the turbine front flow guide part 2 is connected with the gas generator, and the turbine front flow guide part 2 can guide the high-temperature and high-pressure airflow sprayed by the gas generator, the fifth flow channel 201 can provide high-temperature and high-pressure power airflow for the second flow channel 102, and the sixth flow channel 202 and the accommodating cavity 203 arranged can provide low-temperature gas for the first flow channel 101, the whole flow channel design of the utility model provides a novel structure for the turbine power generation device, so that the turbine power generation device is more efficient.
[0044] The above is only the preferred embodiment of the present application, and does not limit the present application in any form, although the present application has been disclosed as above, however, it is not intended to limit the present application, any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above-mentioned embodiment, all still belong to the scope of the present application.
Claims
1. A turbine guide structure having an inner channel, characterized by, The turbine rear flow guide (1) has a first flow channel (101) arranged in the axial direction and a second flow channel (102) arranged in the axial direction outside the periphery of the first flow channel (101). A third flow channel (103) is connected to the outside of the turbine rear flow guide (1) through the second flow channel (102). The third flow channel (103) extends from the outside of the turbine rear flow guide (1) to the pipe wall of the first flow channel (101).
2. The turbine flow guide structure having an internal channel of claim 1, wherein, The third flow channel (103) penetrates the second flow channel (102) and the first flow channel (101), and communicates the inside and outside of the turbine rear flow guide (1).
3. The turbine flow guide structure having an internal channel of claim 1, wherein, A fourth flow channel (105) is formed in at least part of the third flow channel (103), which penetrates from one side of the third flow channel (103) and penetrates from the other side of the third flow channel (103).
4. The turbine flow guide structure having an internal channel according to claim 1 or 2 or 3, wherein A cable tube (109) is arranged in at least part of the third flow channel (103).
5. The turbine flow guide structure having an internal channel according to claim 1 or 2 or 3, wherein A plurality of guide vanes (104) are arranged in the first flow channel (101) at the air inlet of the first flow channel.
6. The turbine flow guide structure having an internal channel of claim 1, wherein, One end of the fourth flow channel (105) extends out of the third flow channel (103), and the other end extends to the end face of the turbine rear flow guide (1) on the exhaust side.
7. The turbine flow guide structure having an internal channel of claim 4, wherein, A cylindrical bearing mounting seat (106) is arranged in the middle of the turbine rear flow guide (1), and a seventh flow channel (107) is formed between the bearing mounting seat (106) and the turbine rear flow guide (1), which communicates with the third flow channel (103).
8. The turbine flow guide structure having an internal channel of claim 1, wherein, The turbine front flow guide (2) is arranged between the turbine rear flow guide (1) and forms a space for installing a turbine rotor, and the turbine front flow guide (2) includes a fifth flow channel (201) arranged in the axial direction and having a ring-shaped cross section, and a plurality of sixth flow channels (202) penetrating the fifth flow channel (201) and communicating the outside and inside of the turbine front flow guide (2).
9. The turbine flow guide structure having an internal channel of claim 1, wherein, The turbine front flow guide (2) further comprises a containing cavity (203) capable of communicating with the first flow channel (101), and the sixth flow channel (202) communicates the containing cavity (203) with the outside of the turbine front flow guide (2).
10. The turbine flow guide structure having an internal channel of claim 9, wherein,