CN114542214A - Marine steam turbine high reliability hollow rod supports cylinder structure - Google Patents
Marine steam turbine high reliability hollow rod supports cylinder structure Download PDFInfo
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- CN114542214A CN114542214A CN202210229957.8A CN202210229957A CN114542214A CN 114542214 A CN114542214 A CN 114542214A CN 202210229957 A CN202210229957 A CN 202210229957A CN 114542214 A CN114542214 A CN 114542214A
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- outer cylinder
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000010977 unit operation Methods 0.000 abstract description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention aims to provide a high-reliability hollow rod supporting cylinder structure of a marine steam turbine, which comprises an inner cylinder and an outer cylinder, wherein the inner cylinder is embedded into the outer cylinder, a split surface of the inner cylinder and a split surface of the outer cylinder are fixed through a steel plate, and the inner cylinder and the outer cylinder are supported in a three-dimensional staggered manner through a hollow rod. The invention adopts a high-reliability hollow rod supporting cylinder structure for the first time, the hollow rods are arranged between the inner cylinder and the outer cylinder in a three-dimensional staggered manner, the supporting rods are sleeved in the hollow pipes, one ends of the supporting rods are welded by fillet welds, the surfaces of the hollow pipes are hammered by the other ends of the supporting rods after being heated and expanded, so that the supporting rods are better attached to the supporting rods, and reinforcing ribs are arranged between the supporting rods for reinforcement, so that the cylinder is small in thermal expansion and thermal deformation in the working process, better in rigidity and more stable in structure. The safety reliability and the stability of the unit operation are guaranteed.
Description
Technical Field
The invention relates to a steam turbine, in particular to a support structure of the steam turbine.
Background
After high-temperature and high-pressure steam enters the cylinder, the high-temperature and high-pressure steam firstly flows into the outer cylinder after acting inside the inner cylinder, and the steam can cause the cylinder to generate thermal deformation in the process of acting, so that the rigidity and the safety of the cylinder are influenced.
In the field of ship power, a marine turboset is taken as a core device of a ship power device, and on the basis of meeting the basic functions of main equipment of the ship power device, as the internal space of a cabin is limited, in order to meet the urgent requirements of improving the cabin utilization rate, enhancing the integral rigidity of a steam turbine and realizing high-power operation, the cylinder structure of the turboset is required to be innovated, the original heavy structural form is changed, and the size and the weight are greatly reduced.
Disclosure of Invention
The invention aims to provide a high-reliability hollow rod supporting cylinder structure of a marine steam turbine, which solves the problems of large volume and weight, low cabin utilization rate and the like caused by the rigidity of a cylinder in the prior art, and further improves the efficiency of the steam turbine.
The purpose of the invention is realized by the following steps:
the invention relates to a high-reliability hollow rod supporting cylinder structure of a marine steam turbine, which is characterized in that: the inner cylinder is embedded into the outer cylinder, the inner cylinder split surface and the outer cylinder split surface are fixed through steel plates, and the inner cylinder and the outer cylinder are supported in a three-dimensional staggered mode through hollow rods.
The present invention may further comprise:
1. the hollow rod comprises a hollow tube and a supporting rod, the hollow tube is connected with an inner cylinder, the supporting rod is connected with an outer cylinder, the supporting rod is sleeved in the hollow tube, the supporting rod is welded with one end of the hollow tube through a fillet weld, and the other end of the supporting rod is attached to the hollow tube after being heated, expanded and hammered.
2. And a reinforced supporting rib plate is arranged between the supporting rods.
The invention has the advantages that: the structure of the invention solves the problems of large volume and weight, low cabin utilization rate and the like of the original marine steam turbine, and adopts a high-reliability hollow rod supporting cylinder structure for the first time, the hollow rods are arranged between the inner cylinder and the outer cylinder in a three-dimensional staggered manner, the supporting rods are sleeved in the hollow pipes, one ends of the supporting rods are welded by fillet welds, the other ends of the supporting rods are hammered on the surfaces of the hollow pipes after being heated and expanded, so that the supporting rods are better attached to the supporting rods, reinforcing ribs are arranged between the supporting rods for reinforcement, and the cylinder is small in thermal expansion and thermal deformation in the working process, better in rigidity and more stable in structure. The safe reliability and the stability of the unit operation are guaranteed. The invention not only has a great amount of innovations on the structure, but also greatly improves the running efficiency of the unit and has more reliable working performance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an assembly view of the support rod and hollow tube of the present invention;
FIG. 3 is a welding view of the support rod and the hollow tube of the present invention.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
with reference to fig. 1-3, the embodiment of the invention provides a high-reliability hollow rod supporting cylinder structure of a marine steam turbine, and hollow rods are used for three-dimensional staggered arrangement between an inner cylinder 1 and an outer cylinder 2, so that the overall stability of the cylinders is enhanced, and the operation safety of a unit is improved. In the steam turbine working process, high-temperature steam firstly enters the inner cylinder 1, flows into the outer cylinder 2 after doing work through two sides, the outer cylinder 2 is supported by the hollow rod in a staggered mode, the hollow rod is used for sleeving the supporting rod 5 into the hollow tube 4, one end of the hollow rod is welded by the fillet weld, the other end of the hollow rod is used for hammering the surface of the hollow tube 4 after being heated and expanded, the hollow rod is enabled to be attached to the supporting rod 5 better (combining the figure 2 and the figure 3), and the steam can penetrate through the hollow rod and finally flows into the condenser through the shared base. The high-reliability hollow rod cylinder supporting structure not only enables the cylinder supporting performance to be better, but also can absorb thermal expansion when air flows through, and enables the cylinder structure to be more stable. The bilateral symmetry structure enables the structural design to be more compact, an independent exhaust cylinder structure is omitted, the space utilization rate is higher, the size is reduced, the weight is reduced, and tests prove that the structure is higher in rigidity and more reliable in performance.
The invention relates to a high-reliability hollow rod supporting cylinder structure of a marine steam turbine, which has the following relevant technical characteristics:
1. the middle section of the inner cylinder 1 and the middle section of the outer cylinder 2 are welded by steel plates with corresponding thicknesses, and the inner cylinder and the outer cylinder are connected together, so that the flatness of the middle sections is enhanced, and the stability of the cylinders is ensured;
2. the outer wall of the outer cylinder 2 is made of steel plates, the inner cylinder 1 is embedded into the outer cylinder 2, so that the steam after acting directly flows into the outer cylinder 2 and directly enters the condenser downwards through the inner space of the support rod 5, and the operation efficiency of the unit is improved;
3. a hollow rod is used for carrying out three-dimensional staggered support between the inner cylinder 1 and the outer cylinder 2, and in order to ensure the stability of the supporting rods, a supporting rib plate 6 is arranged between the supporting rods 5 for reinforcement, so that the supporting rods of the unit are prevented from vibrating under the operation condition;
4. embolia hollow tube 4 with bracing piece 5 in, one end is welded with the fillet weld, and the other end is with hammering the hollow tube surface after through the heating expansion, makes its and the better laminating of bracing piece 5, has not only played and has consolidated supporting role, has prevented the erodeing and the corruption of steam moreover.
Claims (3)
1. The utility model provides a hollow pole support cylinder structure of marine steam turbine high reliability, characterized by: the inner cylinder is embedded into the outer cylinder, the inner cylinder split surface and the outer cylinder split surface are fixed through steel plates, and the inner cylinder and the outer cylinder are supported in a three-dimensional staggered mode through hollow rods.
2. The high reliability hollow bar support cylinder structure of marine steam turbine according to claim 1, wherein: the hollow rod comprises a hollow tube and a supporting rod, the hollow tube is connected with an inner cylinder, the supporting rod is connected with an outer cylinder, the supporting rod is sleeved in the hollow tube, the supporting rod is welded with one end of the hollow tube through a fillet weld, and the other end of the supporting rod is attached to the hollow tube after being heated, expanded and hammered.
3. The high reliability hollow bar support cylinder structure of marine steam turbine according to claim 1, wherein: and a reinforced supporting rib plate is arranged between the supporting rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229957.8A CN114542214B (en) | 2022-03-09 | 2022-03-09 | High-reliability hollow rod supporting cylinder structure of marine steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229957.8A CN114542214B (en) | 2022-03-09 | 2022-03-09 | High-reliability hollow rod supporting cylinder structure of marine steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114542214A true CN114542214A (en) | 2022-05-27 |
| CN114542214B CN114542214B (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210229957.8A Active CN114542214B (en) | 2022-03-09 | 2022-03-09 | High-reliability hollow rod supporting cylinder structure of marine steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114542214B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915581A (en) * | 1989-01-03 | 1990-04-10 | Westinghouse Electric Corp. | Steam turbine with improved inner cylinder |
| DE10360501A1 (en) * | 2003-01-02 | 2005-12-15 | Breunig, Manfred, Dipl.-Ing. (FH) | Combustion/explosion Otto four stroke engine comprises a piston for transferring the explosion force to a central linear connecting rod which has a longitudinal bore for the oil supply to the piston rings |
| US8641362B1 (en) * | 2011-09-13 | 2014-02-04 | Florida Turbine Technologies, Inc. | Turbine exhaust cylinder and strut cooling |
| CN205297660U (en) * | 2015-12-29 | 2016-06-08 | 大连锐捷科技有限公司 | Interior outer shell integral type low pressure jar |
| CN205297659U (en) * | 2015-12-29 | 2016-06-08 | 大连锐捷科技有限公司 | Low pressure inner casing second |
| CN105863750A (en) * | 2016-04-29 | 2016-08-17 | 东方电气集团东方汽轮机有限公司 | Whole type double-layer low-pressure inner cylinder of steam turbine |
| CN205714292U (en) * | 2016-06-30 | 2016-11-23 | 武平泓鑫工业技术开发有限公司 | A kind of novel steam turbine |
| CN108678816A (en) * | 2018-06-29 | 2018-10-19 | 东方电气集团东方汽轮机有限公司 | A kind of support construction improving steam turbine low-pressure outer shell bearing block resistance to shock |
| US20180328229A1 (en) * | 2015-06-09 | 2018-11-15 | Kawasaki Jukogyo Kabushiki Kaisha | Exhaust diffuser |
| CN109960852A (en) * | 2019-02-22 | 2019-07-02 | 上海发电设备成套设计研究院有限责任公司 | The structure and performance design and monitoring method of air-cooled type high-parameter steam turbine low pressure (LP) cylinder |
| CN210499651U (en) * | 2019-07-31 | 2020-05-12 | 迪尔集团有限公司 | Device for improving grinding efficiency of thrust pad of steam turbine |
| CN111927581A (en) * | 2020-09-08 | 2020-11-13 | 杭州汽轮机股份有限公司 | Multi-surface supported welding exhaust cylinder of industrial steam turbine |
| CN112360564A (en) * | 2020-12-10 | 2021-02-12 | 中国船舶重工集团公司第七0三研究所 | Integrated naval vessel steam turbine set |
| CN114017142A (en) * | 2021-12-02 | 2022-02-08 | 中国船舶重工集团公司第七0三研究所 | Fully flexible support for steam turbine |
-
2022
- 2022-03-09 CN CN202210229957.8A patent/CN114542214B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915581A (en) * | 1989-01-03 | 1990-04-10 | Westinghouse Electric Corp. | Steam turbine with improved inner cylinder |
| DE10360501A1 (en) * | 2003-01-02 | 2005-12-15 | Breunig, Manfred, Dipl.-Ing. (FH) | Combustion/explosion Otto four stroke engine comprises a piston for transferring the explosion force to a central linear connecting rod which has a longitudinal bore for the oil supply to the piston rings |
| US8641362B1 (en) * | 2011-09-13 | 2014-02-04 | Florida Turbine Technologies, Inc. | Turbine exhaust cylinder and strut cooling |
| US20180328229A1 (en) * | 2015-06-09 | 2018-11-15 | Kawasaki Jukogyo Kabushiki Kaisha | Exhaust diffuser |
| CN205297660U (en) * | 2015-12-29 | 2016-06-08 | 大连锐捷科技有限公司 | Interior outer shell integral type low pressure jar |
| CN205297659U (en) * | 2015-12-29 | 2016-06-08 | 大连锐捷科技有限公司 | Low pressure inner casing second |
| CN105863750A (en) * | 2016-04-29 | 2016-08-17 | 东方电气集团东方汽轮机有限公司 | Whole type double-layer low-pressure inner cylinder of steam turbine |
| CN205714292U (en) * | 2016-06-30 | 2016-11-23 | 武平泓鑫工业技术开发有限公司 | A kind of novel steam turbine |
| CN108678816A (en) * | 2018-06-29 | 2018-10-19 | 东方电气集团东方汽轮机有限公司 | A kind of support construction improving steam turbine low-pressure outer shell bearing block resistance to shock |
| CN109960852A (en) * | 2019-02-22 | 2019-07-02 | 上海发电设备成套设计研究院有限责任公司 | The structure and performance design and monitoring method of air-cooled type high-parameter steam turbine low pressure (LP) cylinder |
| CN210499651U (en) * | 2019-07-31 | 2020-05-12 | 迪尔集团有限公司 | Device for improving grinding efficiency of thrust pad of steam turbine |
| CN111927581A (en) * | 2020-09-08 | 2020-11-13 | 杭州汽轮机股份有限公司 | Multi-surface supported welding exhaust cylinder of industrial steam turbine |
| CN112360564A (en) * | 2020-12-10 | 2021-02-12 | 中国船舶重工集团公司第七0三研究所 | Integrated naval vessel steam turbine set |
| CN114017142A (en) * | 2021-12-02 | 2022-02-08 | 中国船舶重工集团公司第七0三研究所 | Fully flexible support for steam turbine |
Non-Patent Citations (2)
| Title |
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| 何海;付千发;王卓巍;: "核电厂汽轮机高压缸缸体支撑杆焊缝超声相控阵检验技术", 科技创新导报, no. 03 * |
| 沈建: "邯峰发电厂660MW汽轮机设计理念与本体安装特点", 河北电力技术, no. 04 * |
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| Publication number | Publication date |
|---|---|
| CN114542214B (en) | 2024-05-17 |
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