CN218119058U - Expansion joint for compact gas turbine exhaust system - Google Patents
Expansion joint for compact gas turbine exhaust system Download PDFInfo
- Publication number
- CN218119058U CN218119058U CN202221257061.2U CN202221257061U CN218119058U CN 218119058 U CN218119058 U CN 218119058U CN 202221257061 U CN202221257061 U CN 202221257061U CN 218119058 U CN218119058 U CN 218119058U
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- Prior art keywords
- pipe
- fixedly connected
- gas turbine
- install bin
- expansion joint
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- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 30
- 239000002918 waste heat Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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Abstract
The utility model discloses an expansion joint for compact gas turbine exhaust system, including fixed pipe, the one end intercommunication of fixed pipe has the bellows, the one end intercommunication that fixed pipe was kept away from to the bellows has communicating pipe, the import intercommunication of fixed pipe has the intake pipe, the fixed surface of fixed pipe is connected with the spacing ring, be provided with seal assembly between spacing ring and the intake pipe, seal assembly passes through the mutual joint of latch mechanism and spacing ring, and latch mechanism includes the install bin, and the top of install bin is run through and has been seted up the activity groove, the utility model relates to a gas turbine exhaust system technical field. This compact is expansion joint for gas turbine exhaust system through the setting of bellows, can shorten the whole length of expansion joint, effectively practices thrift installation space, and holistic expansion joint weight is lighter simultaneously, and the installation is dismantled conveniently, and it is simple to maintain the maintenance process, labour saving and time saving, greatly reduced the work load of maintaining the maintenance, improved maintenance efficiency.
Description
Technical Field
The utility model relates to a gas turbine exhaust system technical field specifically is an expansion joint for compact gas turbine exhaust system.
Background
The gas turbine is widely applied to the fields of power generation, ship and locomotive power, pipeline pressurization and other energy sources, national defense and traffic, is high-technology core equipment related to national safety and national economic development, belongs to high-technology industry with huge market prospects, and is a significant special item of national science and technology. With the large-scale development and utilization of natural gas resources in China, the engineering progress of western gas transportation from east to west, offshore natural gas development, liquefied natural gas introduction, combustible ice development, comprehensive utilization of coal bed gas, distributed power supply construction and the like, national energy structure adjustment enters an implementation stage, and a gas turbine has an unprecedented development opportunity in China.
The exhaust diffuser of the gas turbine is a transition section between the gas turbine and the waste heat boiler, and has the functions of expanding the volume of the spiral tail gas with higher temperature discharged by the gas turbine, reducing the pressure of the spiral tail gas, guiding the spiral tail gas into gas with certain regular turbulent flow, and allowing the gas to enter an inlet flue of the waste heat boiler, so that all heating surfaces of the waste heat boiler can uniformly and effectively absorb waste heat, the overall heat efficiency is improved, the thermal stress generated by nonuniform heating of the heating surfaces is relieved, the stress concentration is avoided, and the operation safety of the waste heat boiler is improved. Because the exhaust diffuser, the combustion engine and the waste heat boiler are respectively provided with independent supporting and fixing systems, and relative expansion exists among the exhaust diffuser, the combustion engine and the waste heat boiler, the problem that expansion devices are arranged at two ends of an exhaust diffuser body is solved. The expansion joint related to the patent is used between a gas turbine and an exhaust diffuser and is mainly used for absorbing thermal displacement between the gas turbine and the exhaust diffuser and initial displacement of the gas turbine, and because the medium flow rate is high, the expansion joint needs to bear large high-frequency low-amplitude vibration, and meanwhile, the product also has the characteristics of large caliber, high processing precision, severe working condition and the like, so that certain difficulty exists in design and manufacture. The expansion joint for the existing gas turbine exhaust system has the disadvantages of heavy product weight, high installation difficulty, time and labor waste and complex maintenance process, and needs to be installed by the aid of more auxiliary tools in an auxiliary manner.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a compact expansion joint for gas turbine exhaust system has solved that current expansion joint product weight for gas turbine exhaust system is heavier, and the installation degree of difficulty is big, need be with the help of more auxiliary fixtures auxiliary installation, wastes time and energy, maintains the problem that the maintenance process is complicated.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a compact gas turbine is expansion joint for exhaust system, includes the fixed tube, the one end intercommunication of fixed tube has the bellows, the bellows keeps away from the one end intercommunication of fixed tube has communicating pipe, the import intercommunication of fixed tube has the intake pipe, the fixed surface fixedly connected with spacing ring of fixed tube, be provided with seal assembly between spacing ring and the intake pipe, seal assembly passes through the mutual joint of latch mechanism and spacing ring, latch mechanism includes the install bin, the movable groove has been run through at the top of install bin, the fixed frame of bottom fixedly connected with of install bin inner wall, the inner wall sliding connection of fixed frame has the gag lever post, the outside of install bin and extension to the install bin is run through to the bottom of gag lever post, the surface rotation of gag lever post is connected with the connecting rod, the one end rotation that the gag lever post was kept away from to the connecting rod is connected with the movable rod, the top of movable rod runs through the movable groove and extends to the outside of install bin, the top fixedly connected with adjustment button of movable rod, one side that the top of install bin just is located adjustment button is provided with stop assembly, one side fixedly connected with first spring, the one end of movable rod is kept away from the inner wall connection of install bin.
Preferably, the limiting assembly comprises a supporting rod and a first limiting tooth, the bottom end of the supporting rod is fixedly connected with the top of the installation box, and the first limiting tooth is fixedly connected with the top of the adjusting button.
Preferably, the top of bracing piece is rotated and is connected with the regulating plate, the spacing tooth of one end fixedly connected with and the spacing tooth of first spacing tooth looks adaptation of regulating plate bottom.
Preferably, the other end of the adjusting plate is fixedly connected with a second spring, and one end, far away from the adjusting plate, of the second spring is fixedly connected with the top of the installation box.
Preferably, the sealing assembly comprises a fixed cylinder and a third spring, the fixed cylinder is communicated with an outlet of the air inlet pipe, and the third spring is fixedly connected with one side of the limiting ring.
Preferably, one end, far away from the limiting ring, of the third spring is fixedly connected with a sealing ring, and an inner ring of the sealing ring is fixedly connected with a sealing pipe.
Advantageous effects
The utility model provides an expansion joint for compact gas turbine exhaust system. Compared with the prior art, the method has the following beneficial effects:
(1) This compact gas turbine expansion joint for exhaust system, there is the bellows through the one end intercommunication of fixed pipe, the bellows keeps away from the one end intercommunication of fixed pipe has communicating pipe, the import intercommunication of fixed pipe has the intake pipe, the fixed surface of fixed pipe is connected with the spacing ring, be provided with seal assembly between spacing ring and the intake pipe, seal assembly passes through the mutual joint of latch mechanism and spacing ring, latch mechanism includes the install bin, the movable groove has been run through and has been seted up at the top of install bin, the fixed frame of bottom fixedly connected with of install bin inner wall, the inner wall sliding connection of fixed frame has the gag lever post, the outside that the install bin was run through and extended to the install bin is run through to the bottom of gag lever post, the surface rotation of gag lever post is connected with the connecting rod, the one end rotation that the gag lever post was kept away from to the connecting rod is connected with the movable rod, the top of movable rod runs through the movable groove and extends to the outside of install bin, the top fixedly connected with adjustment button of movable rod, one side fixedly connected with the spacing subassembly at the install bin, one side fixedly connected with first spring of movable rod, the one end fixed connection of movable rod is kept away from the one end of movable rod and inner wall fixed connection with the inner wall fixed connection of install bin, the maintenance efficiency of saving labour is reduced greatly, the maintenance work efficiency of saving, the maintenance is saved.
(2) This compact is expansion joint for gas turbine exhaust system, include solid fixed cylinder and third spring through seal assembly, gu fixed cylinder is linked together with the export of intake pipe, one side fixed connection of third spring and spacing ring, the one end fixedly connected with sealing ring of spacing ring is kept away from to the third spring, the inner circle fixedly connected with seal tube of sealing ring, through seal assembly's setting, can effectively improve the leakproofness between intake pipe and the solid fixed tube under the cooperation of sealing ring and sealed lid, reduce the junction tail gas and leak.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a partial cross-sectional view of the structure of the present invention as assembled;
FIG. 3 is a cross-sectional view of the clamping mechanism of the present invention;
FIG. 4 is an enlarged view of a portion of the present invention at A in FIG. 3;
fig. 5 is a perspective view of the bellows of the present invention.
In the figure: the sealing device comprises a fixed pipe 1, a corrugated pipe 2, a communicating pipe 3, an air inlet pipe 4, a clamping mechanism 5, a mounting box 51, a movable groove 52, a fixed frame 53, a limiting rod 54, a limiting assembly 55, a supporting rod 551, a first limiting tooth 552, an adjusting plate 553, a second limiting tooth 554, a second spring 555, a connecting rod 56, a movable rod 57, an adjusting button 58, a first spring 59, a sealing assembly 6, a fixed cylinder 61, a third spring 62, a sealing ring 63, a sealing pipe 64 and a limiting ring 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: an expansion joint for a compact gas turbine exhaust system comprises a fixed pipe 1, one end of the fixed pipe 1 is communicated with a corrugated pipe 2, the inner diameter of the corrugated pipe 2 gradually decreases from left to right, one end of the corrugated pipe 2, which is far away from the fixed pipe 1, is communicated with a communicating pipe 3, an inlet of the fixed pipe 1 is communicated with an air inlet pipe 4, a surface of the fixed pipe 1 is fixedly connected with a limiting ring 7, a sealing component 6 is arranged between the limiting ring 7 and the air inlet pipe 4, the sealing component 6 comprises a fixed barrel 61 and a third spring 62, the third spring 62 is in a compressed state, the fixed barrel 61 is communicated with an outlet of the air inlet pipe 4, the third spring 62 is fixedly connected with one side of the limiting ring 7, one end of the third spring 62, which is far away from the limiting ring 7, is fixedly connected with a sealing ring 63, an inner ring of the sealing ring 63 is fixedly connected with a sealing pipe 64, the surface of the sealing pipe 64 is respectively in a sliding connection with the inner walls of the fixed pipe 4 and the fixed pipe 1, the air inlet pipe 6 is mutually clamped with the limiting ring 7 through a clamping mechanism 5, the clamping mechanism 5 comprises a plurality of mounting boxes 51, the bottom of the mounting boxes 51, the mounting boxes 51 is fixedly connected with a top end of a top adjusting rod 52, the top end of the adjusting rod 52, the top of the top fixing box 51, and a top adjusting rod 52, the top adjusting rod 52 is connected with the top of the top fixing box 51, and a top adjusting rod 52, the top adjusting box 52, the top adjusting rod 52, the top adjusting box 51, and a top adjusting rod 52 is connected with the top adjusting rod 52, and a top adjusting box 51, and a top adjusting rod 52, the top adjusting box, and a top adjusting rod 52, the top adjusting box 51, spacing subassembly 55 includes bracing piece 551 and first spacing tooth 552, the bottom of bracing piece 551 and the top fixed connection of install bin 51, the top fixed connection of first spacing tooth 552 and adjustment button 58, the top of bracing piece 551 is rotated and is connected with regulating plate 553, the one end fixedly connected with of regulating plate 553 bottom and the spacing tooth 554 of the second of first spacing tooth 552 looks adaptation, the other end fixedly connected with second spring 555 of regulating plate 553, second spring 555 is in compression state, the one end that regulating plate 553 was kept away from to second spring 555 and the top fixed connection of install bin 51, the first spring 59 of one side fixedly connected with of movable rod 57, first spring 59 is in compression state, the one end that movable rod 57 was kept away from to first spring 59 is connected with the inner wall fixed connection of install bin 51.
Bellows 2 is linked together through intake pipe 4 and gas turbine body afterbody, intake pipe 4 and gas turbine body afterbody fixed connection, bellows 2 is linked together through communicating pipe 3 and gas turbine diffusion section, sealing ring 63 forms sealed face with the inner wall of fixed cylinder 61 under the elastic action of second spring 555 and improves the leakproofness between intake pipe 4 and the fixed pipe 1, when needing to dismantle the device, promote adjustment button 58, adjustment button 58 drives gag lever post 54 through movable rod 57 and connecting rod 56 and makes gag lever post 54 drop spacing ring 7 along fixed frame 53 lapse, when adjustment button 58 moved the left side, adjusting plate 553 drives second spacing tooth 554 and first spacing tooth 552 joint and carries on spacingly to adjustment button 58 under the effect of second spring 555, when gag lever post 54 all breaks away from the gag lever post, can unpack fixed pipe 1 apart with intake pipe 4.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An expansion joint for a compact gas turbine exhaust system, comprising a fixed pipe (1), characterized in that: one end of the fixed pipe (1) is communicated with a corrugated pipe (2), one end, far away from the fixed pipe (1), of the corrugated pipe (2) is communicated with a communicating pipe (3), an inlet of the fixed pipe (1) is communicated with an air inlet pipe (4), the surface of the fixed pipe (1) is fixedly connected with a limiting ring (7), a sealing assembly (6) is arranged between the limiting ring (7) and the air inlet pipe (4), and the sealing assembly (6) is mutually clamped with the limiting ring (7) through a clamping mechanism (5);
clamping mechanism (5) are including install bin (51), movable groove (52) have been seted up in the top of install bin (51) runs through, the fixed frame (53) of bottom fixedly connected with of install bin (51) inner wall, the inner wall sliding connection of fixed frame (53) has gag lever post (54), the outside that install bin (51) and extend to install bin (51) is run through to the bottom of gag lever post (54), the rotation of surface of gag lever post (54) is connected with connecting rod (56), the one end that gag lever post (54) were kept away from in connecting rod (56) rotates and is connected with movable rod (57), the top of movable rod (57) runs through install bin (51) through movable groove (52) and extends to the outside of install bin (51), the top fixedly connected with adjustment button (58) of movable rod (57), the top of install bin (51) and the one side that is located adjustment button (58) are provided with spacing subassembly (55), one side fixedly connected with first spring (59) of movable rod (57), the one end of movable rod (57) is kept away from in first spring (59) is connected with the fixed wall of install bin (51).
2. The expansion joint for a compact gas turbine exhaust system according to claim 1, wherein: the limiting assembly (55) comprises a supporting rod (551) and a first limiting tooth (552), the bottom end of the supporting rod (551) is fixedly connected with the top of the mounting box (51), and the first limiting tooth (552) is fixedly connected with the top of the adjusting button (58).
3. The expansion joint for a compact gas turbine exhaust system according to claim 2, wherein: the top end of the supporting rod (551) is rotatably connected with an adjusting plate (553), and one end of the bottom of the adjusting plate (553) is fixedly connected with a second limiting tooth (554) matched with the first limiting tooth (552).
4. The expansion joint for a compact gas turbine exhaust system according to claim 3, wherein: the other end fixedly connected with second spring (555) of regulating plate (553), the one end and the top fixed connection of install bin (51) that regulating plate (553) are kept away from to second spring (555).
5. The expansion joint for a compact gas turbine exhaust system according to claim 1, wherein: the sealing assembly (6) comprises a fixed cylinder (61) and a third spring (62), the fixed cylinder (61) is communicated with an outlet of the air inlet pipe (4), and the third spring (62) is fixedly connected with one side of the limiting ring (7).
6. The expansion joint for a compact gas turbine exhaust system according to claim 5, wherein: one end, far away from the limiting ring (7), of the third spring (62) is fixedly connected with a sealing ring (63), and the inner ring of the sealing ring (63) is fixedly connected with a sealing pipe (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221257061.2U CN218119058U (en) | 2022-05-24 | 2022-05-24 | Expansion joint for compact gas turbine exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221257061.2U CN218119058U (en) | 2022-05-24 | 2022-05-24 | Expansion joint for compact gas turbine exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218119058U true CN218119058U (en) | 2022-12-23 |
Family
ID=84510085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221257061.2U Expired - Fee Related CN218119058U (en) | 2022-05-24 | 2022-05-24 | Expansion joint for compact gas turbine exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218119058U (en) |
-
2022
- 2022-05-24 CN CN202221257061.2U patent/CN218119058U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221223 |