Micro gas turbine

Abstract

The utility model relates to the technical field of micro gas turbines, and provides a micro gas turbine which comprises a micro gas turbine body and a reinforcing assembly. The lower end of a micro gas turbine body is placed in a clamping groove, a supporting bottom plate is placed between a first annular groove and a second annular groove, and after the micro gas turbine body and the clamping groove are clamped, a second bolt is taken out at the moment; the supporting bottom plate, the extending plate of the first ring groove set and the extending plate of the second ring groove set are fixedly connected, and under the condition that the lower end of the supporting bottom plate is fixed, the first ring block and the second ring block cannot rotate in the first ring groove, and the first ring block and the second ring block cannot rotate in the second ring groove as well; and then the first annular groove and the second annular groove in the other side of the micro gas turbine body are subjected to the same operation to install the other set of supporting bottom plates, and the problem that the micro gas turbine body cannot be effectively reinforced and prevented from shaking conveniently is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro gas turbines, and in particular to a micro gas turbine. Background Art

[0002] Micro gas turbines are a newly developed type of small thermal power generators with a single unit power range of 25 to 300 kW. The basic technical features are the use of radial turbine machinery (centrifugal turbine and centrifugal compressor) and heat recovery cycle. It is believed that micro gas turbine power generation technology is likely to set off a wave of technological innovation in "small and decentralized power sources", thus becoming the mainstream of energy technology in the 21st century.

[0003] The patent specification with announcement number CN112324569A discloses a turbine disk for a micro gas turbine with a self-lubricating structure. By fine-tuning the angles of the first blade and the second blade, the purpose of controlling the air flow and compressed air is achieved; through the coordination of the air inlet hole, the combustion chamber, the fuel nozzle and the igniter, the full combustion of the fuel is achieved to increase the expansion force, improve the utilization rate of the fuel, and facilitate use; through the coordination of the exhaust pipe, the heat exchanger, the exhaust port and the filter, the impact on the external environment is reduced, and it is convenient to use.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned technical solution has the following problems: during the use of the above-mentioned device, due to the long-term use of the micro gas turbine, its connecting parts are prone to loosening, resulting in the loss of the overall integrity of the device, which makes the micro gas turbine prone to vibration and shaking during operation, affecting the normal use of the micro gas turbine and affecting the service life of the micro gas turbine. Therefore, further improvement is needed. Utility Model Content

[0005] The utility model provides a micro gas turbine, which solves the problem in the related art that it is inconvenient to effectively reinforce and prevent the micro gas turbine body from shaking.

[0006] The technical solution of the utility model is as follows:

[0007] A micro gas turbine comprises a micro gas turbine body, wherein a reinforcement assembly is arranged on the outer surface of the micro gas turbine body, wherein the reinforcement assembly comprises a first annular groove and a second annular groove which are opened on the outer surface of the micro gas turbine body, wherein the first annular groove and the second annular groove have the same structure, wherein a first annular block and a second annular block are slidably connected to the inner walls of the first annular groove and the second annular groove, and a supporting bottom plate is arranged on the lower side of the micro gas turbine body.

[0008] Preferably, both sides of the first ring block are fixedly connected with an upper laminate plate, and a first through groove is formed through the upper end of the upper laminate plate.

[0009] Preferably, both sides of the second ring block are fixedly connected with a lower pressure plate, the upper end of the lower pressure plate is penetrated with a second through groove, one side of the lower pressure plate is fixedly connected with an extension plate, one side of the extension plate is penetrated with a first circular groove.

[0010] Preferably, the lower pressing plate is in contact with the upper pressing plate, and the second through-groove is connected to the first through-groove.

[0011] Preferably, a clamping groove is provided at the upper end of the supporting base plate, and a second circular groove is provided through one side of the supporting base plate.

[0012] Preferably, the card slot is attached to the lower outer surface of the micro gas turbine body, and the second circular groove is connected to the first circular groove.

[0013] Preferably, a first bolt is disposed above the first ring block, and a second bolt is disposed on one side of the second ring block.

[0014] Preferably, the first bolt passes through the first through groove and the second through groove and is fixedly connected to the external nut by threads, and the second bolt passes through the first circular groove of the first ring groove group, the second circular groove and the first circular groove of the second ring groove group and is fixedly connected to the external nut by threads.

[0015] The working principle and beneficial effects of the utility model are:

[0016] The utility model places the first ring block in the upper inner wall of the first ring groove, then places the second ring block in the lower inner wall of the first ring groove, then takes out the first bolt to fix the first ring block and the second ring block together, then similarly sleeves the first ring block and the second ring block on the inner wall of the second ring groove and fixes the two together.

[0017] The utility model places the lower end of the micro gas turbine body at the slot, and the supporting base plate is placed between the first ring groove and the second ring groove. After the micro gas turbine body and the slot are engaged, the second bolt is taken out to form a fixed connection between the supporting base plate, the extension plate of the first ring groove group and the extension plate of the second ring groove group. When the lower end of the supporting base plate is fixed, the first ring block and the second ring block cannot rotate in the first ring groove, and the first ring block and the second ring block cannot rotate in the second ring groove either. Then, the first ring groove and the second ring groove on the other side of the micro gas turbine body are operated in the same way to install another group of supporting base plates, thereby solving the problem of inconvenience in effectively reinforcing the micro gas turbine body to prevent shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the micro gas turbine of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a first ring block and a second ring block of the utility model;

[0022] Figure 4 This is a schematic diagram of the support base structure of the utility model.

[0023] In the figure: 1, micro gas turbine body; 2, reinforcement assembly; 21, first bolt; 22, second bolt; 23, first ring groove; 24, second ring groove; 25, first ring block; 251, upper pressure plate; 252, first through groove; 26, second ring block; 261, lower pressure plate; 262, second through groove; 263, extension plate; 264, first circular groove; 27, support bottom plate; 271, slot; 272, second circular groove. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 As shown, this embodiment proposes a micro gas turbine, comprising a micro gas turbine body 1 , and a reinforcement component 2 is arranged on the outer surface of the micro gas turbine body 1 .

[0026] like Figure 1 As shown, a first bolt 21 is arranged above the first ring block 25, and a second bolt 22 is arranged on one side of the second ring block 26. The first bolt 21 passes through the first through groove 252 and the second through groove 262 and is fixedly connected to an external nut by a thread. The second bolt 22 passes through the first circular groove 264 of the first ring groove 23 group, the second circular groove 272 and the first circular groove 264 of the second ring groove 24 group and is fixedly connected to an external nut by a thread. The first bolt 21 is used to fix the first ring block 25 and the second ring block 26 so that the first ring block 25 and the second ring block 26 will not separate from the first ring groove 23 or the second ring groove 24. The second bolt 22 is used to fix the extension plate 263 and the support base plate 27.

[0027] like Figure 2As shown, the reinforcement assembly 2 includes a first annular groove 23 and a second annular groove 24 opened on the outer surface of the micro gas turbine body 1. The first annular groove 23 and the second annular groove 24 have the same structure. The first annular groove 23 and the second annular groove 24 are used to place two groups of first ring blocks 25 and second ring blocks 26, so as to place the supporting base plate 27 between the two groups of first ring blocks 25 and second ring blocks 26.

[0028] like Figure 3 As shown, the first ring block 25 and the second ring block 26 are slidably connected on the inner walls of the first ring groove 23 and the second ring groove 24, and the first ring block 25 is fixedly connected to the upper laminate 251 on both sides, and the upper end of the upper laminate 251 is penetrated with a first through groove 252, and the second ring block 26 is fixedly connected to the lower side pressure plate 261 on both sides, and the upper end of the lower side pressure plate 261 is penetrated with a second through groove 262, and one side of the lower side pressure plate 261 is fixedly connected with an extension plate 263, and one side of the extension plate 263 is penetrated with a first circular groove 264, the lower side pressure plate 261 is fitted with the upper laminate 251, and the second through groove 262 is connected with the first through groove 252, the first ring block 25 is used to be placed on the upper inner wall of the first ring groove 23, and the second ring block 26 is used to be placed on the lower inner wall of the first ring groove 23.

[0029] like Figure 4 As shown, a supporting base plate 27 is provided on the lower side of the micro gas turbine body 1, a card groove 271 is provided on the upper end of the supporting base plate 27, a second circular groove 272 is provided through one side of the supporting base plate 27, the card groove 271 is attached to the lower outer surface of the micro gas turbine body 1, the second circular groove 272 is connected to the first circular groove 264, the supporting base plate 27 is used to support the micro gas turbine body 1, and the two groups of supporting base plates 27 can form a balanced support for the micro gas turbine body 1.

[0030] The working principle and use instructions of the utility model are as follows: when it is necessary to reinforce the micro gas turbine body 1, the staff first needs to take out the micro gas turbine body 1, then the staff places the first ring block 25 in the upper inner wall of the first ring groove 23, then places the second ring block 26 in the lower inner wall of the first ring groove 23, then takes out the first bolt 21, fixes the first ring block 25 and the second ring block 26 together, then sets the first ring block 25 and the second ring block 26 on the inner wall of the second ring groove 24 and fixes the two together, then places the lower end of the micro gas turbine body 1 in the slot 271, and places the support bottom plate 27 between the first ring groove 23 and the second ring groove 24, After the two grooves 271 are engaged, the second bolt 22 is removed to form a fixed connection between the support base plate 27, the extension plate 263 of the first ring groove 23 group and the extension plate 263 of the second ring groove 24 group. When the lower end of the support base plate 27 is fixed, the first ring block 25 and the second ring block 26 cannot rotate in the first ring groove 23, and the first ring block 25 and the second ring block 26 cannot rotate in the second ring groove 24. Then, the first ring groove 23 and the second ring groove 24 on the other side of the micro gas turbine body 1 are operated in the same way to install another group of support base plates 27. At this time, the micro gas turbine body 1 can be effectively fixed under the action of the two groups of support base plates 27 to prevent it from shaking during operation.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A micro gas turbine, comprising a micro gas turbine body (1), characterized in that: A reinforcement component (2) is provided on the outer surface of the micro gas turbine body (1), the reinforcement component (2) comprising a first annular groove (23) and a second annular groove (24) provided on the outer surface of the micro gas turbine body (1), the first annular groove (23) and the second annular groove (24) having the same structure, a first annular block (25) and a second annular block (26) being slidably connected to the inner walls of the first annular groove (23) and the second annular groove (24), and a supporting bottom plate (27) being provided on the lower side of the micro gas turbine body (1).

2. A micro gas turbine according to claim 1, characterized in that: An upper laminate plate (251) is fixedly connected to both sides of the first ring block (25), and a first through groove (252) is formed through the upper end of the upper laminate plate (251).

3. A micro gas turbine according to claim 1, characterized in that: Both sides of the second ring block (26) are fixedly connected to a lower pressure plate (261), an upper end of the lower pressure plate (261) is provided with a second through groove (262), one side of the lower pressure plate (261) is fixedly connected to an extension plate (263), and one side of the extension plate (263) is provided with a first circular groove (264).

4. A micro gas turbine according to claim 3, characterized in that: The lower pressing plate (261) is in contact with the upper pressing plate (251), and the second through groove (262) is in communication with the first through groove (252).

5. A micro gas turbine according to claim 1, characterized in that: A clamping groove (271) is provided at the upper end of the supporting bottom plate (27), and a second circular groove (272) is provided through one side of the supporting bottom plate (27).

6. A micro gas turbine according to claim 5, characterized in that: The clamping groove (271) is attached to the lower outer surface of the micro gas turbine body (1), and the second circular groove (272) is connected to the first circular groove (264).

7. A micro gas turbine according to claim 1, characterized in that: A first bolt (21) is arranged above the first ring block (25), and a second bolt (22) is arranged on one side of the second ring block (26).

8. A micro gas turbine according to claim 7, characterized in that: The first bolt (21) passes through the interior of the first through groove (252) and the second through groove (262) and is fixedly connected to an external nut by means of threads, and the second bolt (22) passes through the interior of the first circular groove (264) and the second circular groove (272) in the first annular groove (23) group and the interior of the first circular groove (264) in the second annular groove (24) group and is fixedly connected to an external nut by means of threads.

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