CN217813620U - Exhaust guide ring for steam turbine of thermal power plant - Google Patents
Exhaust guide ring for steam turbine of thermal power plant Download PDFInfo
- Publication number
- CN217813620U CN217813620U CN202221996170.6U CN202221996170U CN217813620U CN 217813620 U CN217813620 U CN 217813620U CN 202221996170 U CN202221996170 U CN 202221996170U CN 217813620 U CN217813620 U CN 217813620U
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- Prior art keywords
- ring
- steam turbine
- guide ring
- exhaust
- exhaust guide
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
An exhaust guide ring for a steam turbine of a thermal power plant comprises a steam turbine low pressure cylinder and a sealing mechanism; when the exhaust guide ring is used, the sealing sleeve plates arranged on one sides of the two groups of guide rings are sleeved on the outer surfaces of the air bag rings arranged on the outer surface of the low-pressure cylinder of the steam turbine, and then the air bag rings are inflated through the inflation inlet, so that the air bag rings in a full inflation state seal and block the gap at the joint of the sealing sleeve plates and the low-pressure cylinder of the steam turbine, and the beneficial effect of reducing the loss of hot gas caused by the outflow of the hot gas from the gap at the joint in the flowing process of the hot gas is achieved; divide into first exhaust water conservancy diversion ring and second exhaust water conservancy diversion ring through the exhaust water conservancy diversion ring with original as an organic whole, then connect fixedly through nut assembly between its and the turbine low pressure jar, convenient to detach installs, and through the effect of its side-mounting's sealed lagging and turbine low pressure jar surface mounting gasbag ring, can effectively improve the connection leakproofness between it.
Description
Technical Field
The utility model relates to a steam turbine technical field specifically is a steam turbine of thermal power factory is with exhaust water conservancy diversion ring.
Background
The steam turbine is an important tool of a thermal power plant, fan blades of the steam turbine are continuously flushed by utilizing thermal potential energy of steam, so that the thermal potential energy of the steam is converted into machine energy, and in order to achieve better steam exhaust of the steam turbine, a worker can install a flow guide ring at a steam exhaust position of the steam turbine during use;
the guide ring is mainly used for a low-pressure steam turbine cylinder and comprises a steam inlet guide ring and a steam exhaust guide ring, the steam inlet guide ring is located in the middle of the low-pressure steam turbine cylinder, the steam exhaust guide ring is located on two sides of the low-pressure steam turbine cylinder, kinetic energy of steam exhaust is utilized as far as possible in the steam exhaust guide ring, loss of flowing of hot gas is reduced, the existing steam exhaust guide ring is connected with the low-pressure steam turbine cylinder through screw fixation, gaps are easily formed in the connection position of the steam exhaust guide ring, steam and pressure are prone to leakage, sealing performance is improved through electric welding connection, the steam exhaust guide ring is inconvenient to separate from the low-pressure steam turbine cylinder in the later stage, the service life of the steam exhaust guide ring is short, recycling cannot be achieved, and the exhaust guide ring for the steam turbine of the thermal power plant is provided for the situation.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides an exhaust guide ring for a steam turbine of a thermal power plant, when the exhaust guide ring is used, the sealing sleeve plate installed on one side of two groups of guide rings is sleeved on the outer surface of the air bag ring installed on the outer surface of a low-pressure cylinder of the steam turbine, then the air bag ring is inflated through an inflation inlet, so that the air bag ring in a full expansion state seals and blocks the gap at the joint of the sealing sleeve plate and the low-pressure cylinder of the steam turbine, thereby achieving the purpose of reducing the loss of hot air which flows out of the gap at the joint in the flowing process of the hot air and causing the loss of the hot air; divide into first exhaust water conservancy diversion ring and second exhaust water conservancy diversion ring through the exhaust water conservancy diversion ring as original integration, then be connected fixedly between it and the turbine low pressure jar through nut component, convenient to detach installs, and the sealed lagging through its side-mounting and the effect of turbine low pressure jar surface mounting gasbag ring, can effectively improve the connection leakproofness between it, and then reach the purpose that can change the lower condition of device reuse rate that adopts electric welding connection to cause in the traditional mode.
The utility model provides a technical scheme who solves its technical problem adopts, an exhaust water conservancy diversion ring for steam turbine of thermal power factory, including steam turbine low pressure jar and sealing mechanism, wherein, the fixed surface of steam turbine low pressure jar installs the intake pipe, the both ends side of steam turbine low pressure jar is equipped with first exhaust water conservancy diversion ring and second exhaust water conservancy diversion ring respectively, the both ends of first exhaust water conservancy diversion ring and second exhaust water conservancy diversion ring are all fixed with the installation piece, the activity offsets between the multiunit installation piece, adjacent two sets of install the piece between rotate and be connected with the screw rod, the screw rod has cup jointed the bolt to one end surface screw thread; the sealing mechanism comprises a sealing sleeve plate, an air bag ring and an inflation inlet, a limiting ring is fixedly arranged on the outer surface of one end of the low-pressure cylinder of the steam turbine, the air bag ring is assembled on one side of the limiting ring, the inflation inlet is formed in the outer surface of the air bag ring, the sealing sleeve plates are fixedly arranged on the sides, close to the low-pressure cylinder of the steam turbine, of the first exhaust guide ring and the second exhaust guide ring, the two groups of sealing sleeve plates are movably sleeved on the outer surface of the air bag ring, and one sides of the two groups of sealing sleeve plates are movably abutted against the limiting ring;
a positioning plate is fixedly arranged on the side surface of the limiting ring, and one side of the sealing sleeve plate is movably abutted against the side surface of the positioning plate;
and a hole is formed between the two groups of sealing sleeve plates, and an inflation inlet formed in the outer surface of the air bag ring is positioned in the hole.
The utility model has the advantages that when the exhaust guide ring is used, the sealing sleeve plate arranged on one side of the two groups of guide rings is sleeved on the outer surface of the air bag ring arranged on the outer surface of the low-pressure cylinder of the steam turbine, and then the air bag ring is inflated through the inflation inlet, so that the air bag ring in a full expansion state seals and blocks the gap at the joint of the sealing sleeve plate and the low-pressure cylinder of the steam turbine, thereby achieving the beneficial effect of reducing the loss of hot air caused by the outflow from the gap at the joint in the flowing process of the hot air; divide into first exhaust water conservancy diversion ring and second exhaust water conservancy diversion ring through the exhaust water conservancy diversion ring with original as an organic whole, then be connected fixedly between it and the turbine low pressure jar through nut component, convenient to detach installs, and through the sealed lagging of its side-mounting and the effect of turbine low pressure jar surface mounting gasbag ring, can effectively improve the connection leakproofness between it, and then reach the beneficial effect that can change the lower condition of device reuse rate that adopts electric welding connection to cause among the traditional mode.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the exhaust guide ring of the present invention;
FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the structure of the stop collar and the airbag ring of the present invention;
fig. 5 is a schematic view of the sealing mechanism of the present invention.
The present invention will be further described with reference to the accompanying drawings and examples.
Detailed Description
The specific embodiment of the utility model is, refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, an exhaust guide ring for steam turbine of thermal power plant, including steam turbine low pressure cylinder 1 and sealing mechanism 6, wherein, the fixed surface of steam turbine low pressure cylinder 1 installs intake pipe 2, the both ends side of steam turbine low pressure cylinder 1 is equipped with first exhaust guide ring 3 and second exhaust guide ring 4 respectively, the both ends of first exhaust guide ring 3 and second exhaust guide ring 4 are all fixed with installation piece 5, the multiunit activity offsets between installation piece 5, through the effect of first exhaust guide ring 3 and second exhaust guide ring 4, can carry out better exhaust to the inside of steam turbine low pressure cylinder 1, reduce the loss that hot gas flows, adjacent two sets of rotate between installation piece 5 and be connected with screw rod 7, the outer surface screw thread of one end of screw rod 7 has cup jointed bolt 8, the inside of installation piece 5 has all seted up the screw hole, screw rod 7 screw thread is pegged graft in the inside of steam turbine low pressure cylinder, through with the installation piece 5 that the both ends of first exhaust guide ring 3 and second exhaust guide ring 4 are connected with installation piece 8 through the fixed screw rod, make the both ends of exhaust guide ring 3 and install the second exhaust guide ring 4 fixed screw hole; the sealing mechanism 6 comprises a sealing sleeve plate 601, an air bag ring 602 and an air charging port 603, a limiting ring 9 is fixedly mounted on the outer surface of one end of the steam turbine low pressure cylinder 1, the air bag ring 602 is assembled on one side of the limiting ring 9, the air charging port 603 is formed in the outer surface of the air bag ring 602, the sealing sleeve plate 601 is fixedly mounted on one sides, close to the steam turbine low pressure cylinder 1, of the first exhaust guide ring 3 and the second exhaust guide ring 4, the two groups of sealing sleeve plates 601 are movably sleeved on the outer surface of the air bag ring 602, and one sides of the two groups of sealing sleeve plates 601 movably abut against the limiting ring 9; when installing first exhaust water conservancy diversion ring 3 and second exhaust water conservancy diversion ring 4 in the side of steam turbine low pressure cylinder 1, the sealed lagging 601 of exhaust water conservancy diversion ring one side installation cup joints the gasbag ring 602 of the surface mounting of steam turbine low pressure cylinder 1 for first exhaust water conservancy diversion ring 3 and second exhaust water conservancy diversion ring 4 are trained when connecing through sealed lagging 601 and steam turbine low pressure cylinder 1 surface, gasbag ring 602 after aerifing can seal its training department, it flows out from the gap of junction to reduce the steam flow in-process, cause the steam loss.
Referring to fig. 1, 4 and 5, a positioning plate 10 is fixedly mounted on a side surface of the limiting ring 9, and one side of the sealing sleeve plate 601 movably abuts against a side surface of the positioning plate 10;
referring to fig. 1, 4 and 5, a hole 11 is formed between the two sets of sealing sleeve plates 601, and an inflation inlet 603 formed on the outer surface of the airbag ring 601 is located inside the hole 11; the air charging port 603 formed in the outer surface of the air bag ring 602 is in an exposed state, and the air bag ring 602 can be charged through the air charging port 603 at one end of use, so that the air bag ring 602 can better seal the joint of the exhaust guide ring and the steam turbine low pressure cylinder 1.
The working principle is as follows:
referring to fig. 1, 2, 3, 4, and 5, when the exhaust guide ring is installed, first, the first exhaust guide ring 3 and the second exhaust guide ring 4 are respectively placed at the upper end and the lower end of the outer surface of the turbine low pressure cylinder 1, then, the lower surfaces of the sealing sleeve plates 601 installed at one sides of the two sets of guide rings are abutted against the outer surface of the turbine low pressure cylinder 1, then, the two sets of sealing sleeve plates 601 are moved toward the direction close to the limit ring 9, when one side of the sealing sleeve plate 601 is abutted against the side surface of the limit ring 9, the airbag rings 602 installed at the side surface of the limit ring 9 are all sleeved inside the sealing sleeve plates 601, and at this time, the first exhaust guide ring 3 and the second exhaust guide ring 4 are located at one end side surface of the turbine low pressure cylinder 1.
Further, after the first exhaust guide ring 3 and the second exhaust guide ring 4 are installed on one end side of the turbine low pressure cylinder 1, the first exhaust guide ring 3 and the second exhaust guide ring 4 can be pushed towards the middle direction at the same time, so that the installation blocks 5 installed at two ends of the first exhaust guide ring 3 and the second exhaust guide ring 4 are abutted, then the screw 7 installed on the lower surface of one group of installation blocks 5 can be rotated, one end thread of the screw 7 is inserted into the other group of installation blocks 5, and the bolt 8 is sleeved on the outer surface thread of one end of the screw 7 extending out of the other group of installation blocks 5, so that the first exhaust guide ring 3, the second exhaust guide ring 4 and the sealing sleeve plate 601 installed on one side of the first exhaust guide ring 3 and the second exhaust guide ring 4 are connected and fixed with the turbine low pressure cylinder 1.
Further, the inflator is connected with the inflation inlet 603 which is arranged on the outer surface of the air bag ring 602 and is in an exposed state, so that the inflator performs inflation operation on the air bag ring 602, the air bag ring 602 in a full inflation state seals and blocks a gap at the joint of the sealing sleeve plate 601 and the steam turbine low pressure cylinder 1, and hot gas loss caused by outflow from the gap at the joint in a hot gas flowing process is reduced.
Finally, another group of the first exhaust guide ring 3 and the second exhaust guide ring 4 can be installed on the side surface of the other end of the steam turbine low pressure cylinder 1 by repeating the above operations, so that when the steam turbine is used, the guide rings installed on both sides of the steam turbine low pressure cylinder 1 can perform exhaust operation well.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a steam turbine of thermal power factory is with exhaust water conservancy diversion ring, includes steam turbine low pressure jar and sealing mechanism, characterized by: the outer surface of the steam turbine low pressure cylinder is fixedly provided with an air inlet pipe, the side surfaces of two ends of the steam turbine low pressure cylinder are respectively provided with a first exhaust guide ring and a second exhaust guide ring, two ends of the first exhaust guide ring and two ends of the second exhaust guide ring are respectively and fixedly provided with an installation block, a plurality of groups of installation blocks are movably abutted, a screw rod is rotatably connected between every two adjacent groups of installation blocks, and a bolt is sleeved on the outer surface of one end of the screw rod in a threaded manner; sealing mechanism includes sealed lagging, gasbag ring sum inflation inlet, the one end surface fixed mounting of steam turbine low pressure jar has the spacing ring, one side of spacing ring is equipped with the gasbag ring, the inflation inlet has been seted up to the surface of gasbag ring, one side fixed mounting that first exhaust water conservancy diversion ring and second exhaust water conservancy diversion ring are close to the steam turbine low pressure jar has sealed lagging, and is two sets of sealed lagging activity cup joints at the surface of gasbag ring, and is two sets of the activity offsets between one side of sealed lagging and the spacing ring.
2. The exhaust guide ring for the steam turbine of the thermal power plant according to claim 1, wherein: the side of spacing ring fixed mounting has the locating plate, one side of sealed lagging is supported with the side activity of locating plate.
3. The exhaust guide ring for the steam turbine of the thermal power plant according to claim 2, wherein: and a hole is formed between the two groups of sealing sleeve plates, and an inflation inlet formed in the outer surface of the air bag ring is positioned in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221996170.6U CN217813620U (en) | 2022-08-01 | 2022-08-01 | Exhaust guide ring for steam turbine of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221996170.6U CN217813620U (en) | 2022-08-01 | 2022-08-01 | Exhaust guide ring for steam turbine of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217813620U true CN217813620U (en) | 2022-11-15 |
Family
ID=83970157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221996170.6U Expired - Fee Related CN217813620U (en) | 2022-08-01 | 2022-08-01 | Exhaust guide ring for steam turbine of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217813620U (en) |
-
2022
- 2022-08-01 CN CN202221996170.6U patent/CN217813620U/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 |
Granted publication date: 20221115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |