CN113984393A - Exhaust device for steam turbine cylinder hydrostatic test - Google Patents
Exhaust device for steam turbine cylinder hydrostatic test Download PDFInfo
- Publication number
- CN113984393A CN113984393A CN202111096803.8A CN202111096803A CN113984393A CN 113984393 A CN113984393 A CN 113984393A CN 202111096803 A CN202111096803 A CN 202111096803A CN 113984393 A CN113984393 A CN 113984393A
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- exhaust
- steam turbine
- turbine cylinder
- water inlet
- guide pipe
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- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses an exhaust device for a steam turbine cylinder hydrostatic test, which comprises a steam turbine cylinder, wherein an inner cavity is arranged in the steam turbine cylinder, and a blocking plate is arranged on the outer side of the steam turbine cylinder through a flange; the blocking plate is provided with an exhaust mechanism, an air guide mechanism and a water inlet mechanism, and the air guide mechanism is positioned in an inner cavity of a steam turbine cylinder; the exhaust mechanism comprises an exhaust guide pipe, an automatic exhaust valve and an exhaust joint are respectively arranged at two end parts of the exhaust guide pipe, and a pressure gauge is arranged on the exhaust guide pipe; the air guide mechanism comprises an air guide pipe, and an air guide joint and a floating ball are respectively arranged at two ends of the air guide pipe; the water inlet mechanism comprises a water inlet guide pipe and a water inlet connector, and the water inlet connector is installed at one end of the water inlet guide pipe. The invention can effectively discharge the gas in the steam turbine cylinder, ensures the test accuracy and the safety of equipment personnel and has good use effect.
Description
Technical Field
The invention relates to the technical field of steam turbine cylinder test tests, in particular to an exhaust device for a steam turbine cylinder hydrostatic test.
Background
The working condition and environment of a steam turbine cylinder are severe, and the steam turbine cylinder must bear high temperature and high pressure in the operation process. In order to ensure the safe operation of the cylinder, ensure the bearing capacity of the cylinder, detect the sealing performance and the processing quality of the cylinder and the like, a hydrostatic test is carried out after the cylinder is processed, so that the stress of the cylinder exceeds the working pressure by multiple times, and whether the partial pressure phenomenon exists between the chambers is observed, thereby checking and judging the integrity, the sealing performance and the strength of the cylinder under the overpressure state.
The operation condition medium of cylinder is vapor, and the cylinder structure is comparatively complicated, does not consider the on-the-spot hydrostatic test condition of implementing, and the cylinder top does not set up blast pipe or test hole, can't fill water completely when implementing the hydrostatic test. When the hydrostatic test is carried out, water filling and pressurizing are needed, and residual gas in the cylinder cannot be completely discharged, so that the following adverse effects can be caused: 1. boosting is difficult or abnormal; 2. even if the pressure can be increased, a large amount of gas exists in the pressure-testing device, so that once a pressure-testing boundary fails, a large amount of gas medium is sprayed out instantly, and the risk of damaging workers and equipment is generated; when the equipment has serious defects, explosion can be caused during cylinder test, and the consequences are serious; 3. the sealing condition of the cylinder cannot be accurately reflected in the test due to the variable volume of the gas. The gas in the cylinder can not be completely discharged, which causes great adverse effect on safety production, and the working quality of the hydrostatic test is greatly affected.
Disclosure of Invention
In order to solve the problems, the invention aims to provide an exhaust device for a steam turbine cylinder hydrostatic test.
In order to achieve the purpose, the invention adopts the following technical scheme:
an exhaust device for a steam turbine cylinder hydrostatic test comprises a steam turbine cylinder, wherein an inner cavity is arranged in the steam turbine cylinder, and a blocking plate is arranged on the outer side of the steam turbine cylinder through a flange; the blocking plate is provided with an exhaust mechanism, an air guide mechanism and a water inlet mechanism, and the air guide mechanism is positioned in an inner cavity of a steam turbine cylinder; the exhaust mechanism comprises an exhaust guide pipe, an automatic exhaust valve and an exhaust joint are respectively arranged at two end parts of the exhaust guide pipe, and a pressure gauge is arranged on the exhaust guide pipe; the air guide mechanism comprises an air guide pipe, an air guide joint and a floating ball are respectively arranged at two ends of the air guide pipe, and a heavy hammer is arranged below the floating ball; the water inlet mechanism comprises a water inlet guide pipe and a water inlet connector, and the water inlet connector is installed at one end of the water inlet guide pipe.
Furthermore, in the air guide mechanism, the floating ball is connected with the air guide pipe through a buckle, and the heavy hammer is connected with the floating ball through the buckle.
Furthermore, the top of the floating ball is provided with a groove communicated with the inside of the floating ball, two grooves symmetrically distributed along the center of the top of the floating ball, or a plurality of grooves which take the center of the top of the floating ball as the center of a circle and are radially distributed along the circumferential direction.
Due to the adoption of the technical scheme, the invention has the following advantages:
this exhaust apparatus that steam turbine cylinder hydrostatic test used, its simple structure, reasonable in design, the operation of being convenient for is derived steam turbine cylinder eminence gas through the floater, discharges via automatic exhaust valve, utilizes the weight to keep improving the floater position, realizes gas outgoing through the slot that floater upper portion was equipped with, can effectively discharge the gas in the steam turbine cylinder, guarantees experimental accuracy and equipment personnel safety, excellent in use effect has good popularization and application and worth.
Drawings
FIG. 1 is a front view of the structure of the exhaust apparatus for the steam turbine cylinder hydrostatic test of the present invention;
FIG. 2 is a schematic structural view of the exhaust mechanism and the gas directing mechanism of FIG. 1;
FIG. 3 is a top view of the structure of the exhaust apparatus for the steam turbine cylinder hydrostatic test according to the present invention;
FIG. 4 is a perspective view of an exhaust apparatus for a steam turbine cylinder hydrostatic test according to the present invention;
in the figure: 1-an exhaust mechanism; 2-an air guide mechanism; 3-a water inlet mechanism; 4-blocking plate; 1.1-automatic exhaust valve; 1.2-exhaust conduit; 1.3-pressure gauge; 1.4-exhaust joint; 2.1-floating ball; 2.2-weight dropper; 2.3-gas-guide tube; 2.4-gas guide joint; 3.1-water inlet conduit; 3.2-water inlet joint.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, 2, 3 and 4, the exhaust device for the steam turbine cylinder hydrostatic test comprises a steam turbine cylinder, wherein an inner cavity is arranged in the steam turbine cylinder 5, and a blocking plate 4 is arranged on the outer side of the steam turbine cylinder through a flange; the blocking plate is provided with an air vent and a water inlet; the blocking plate is connected with an exhaust mechanism 1 and an air guide mechanism 2 through an air vent thread, the air guide mechanism is positioned in the inner cavity of the steam turbine cylinder, and the water inlet mechanism 3 is connected with a water inlet thread through a water inlet; the exhaust mechanism 1 comprises an exhaust guide pipe 1.2, one end of the exhaust guide pipe 1.2 is in threaded connection with an automatic exhaust valve 1.1, the other end of the exhaust guide pipe is welded with an exhaust joint 1.4, and a pressure gauge 1.3 is in threaded connection with the exhaust guide pipe 1.2; the air guide mechanism 2 comprises an air guide pipe 2.3, one end of the air guide pipe 2.3 is welded with an air guide joint 2.4, the air guide joint 2.4 is communicated with an exhaust joint 1.4, the other end of the air guide pipe is connected with a floating ball 2.1 through a buckle, the floating ball is made of foam plastic, the top of the floating ball is provided with a groove communicated with the inside of the floating ball, two grooves symmetrically distributed along the center of the top of the floating ball or a plurality of grooves which take the center of the top of the floating ball as the center of a circle and are radially distributed along the circumferential direction; a heavy hammer 2.2 is connected below the floating ball 2.1 through a buckle; the water inlet mechanism 3 comprises a water inlet conduit 3.1 and a water inlet joint 3.2, and the water inlet joint 3.2 is arranged at one end of the water inlet conduit 3.1.
The operation of the exhaust apparatus for the steam turbine cylinder hydrostatic test according to the present invention will be described in detail.
When water enters the steam turbine cylinder through the water inlet conduit 3.1, the floating ball 2.1 is always positioned above the water surface due to the buoyancy effect, the opening of the floating ball is kept upward through the heavy hammer 2.2, and gas passes through the floating ball 2.1, the gas guide pipe 2.3 and the exhaust conduit 1.2 in sequence and is finally exhausted out of the steam turbine cylinder through the automatic exhaust valve 1.1; when the steam turbine cylinder is filled with water, the water flows into the exhaust guide pipe 1.2, the automatic exhaust valve 1.1 automatically stops exhausting, the pressure gauge 1.3 is used for observing the pressure of a hydrostatic test, and the water is exhausted through the water inlet mechanism 3 after the test is finished.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should fall within the protection scope of the present invention.
Claims (3)
1. An exhaust apparatus for steam turbine cylinder hydrostatic test, characterized by: the device comprises a steam turbine cylinder, wherein an inner cavity is arranged in the steam turbine cylinder, and a blocking plate is arranged on the outer side of the steam turbine cylinder through a flange; the blocking plate is provided with an exhaust mechanism, an air guide mechanism and a water inlet mechanism, and the air guide mechanism is positioned in an inner cavity of a steam turbine cylinder; the exhaust mechanism comprises an exhaust guide pipe, an automatic exhaust valve and an exhaust joint are respectively arranged at two end parts of the exhaust guide pipe, and a pressure gauge is arranged on the exhaust guide pipe; the air guide mechanism comprises an air guide pipe, an air guide joint and a floating ball are respectively arranged at two ends of the air guide pipe, and a heavy hammer is arranged below the floating ball; the water inlet mechanism comprises a water inlet guide pipe and a water inlet connector, and the water inlet connector is installed at one end of the water inlet guide pipe.
2. The exhaust apparatus for steam turbine cylinder hydraulics testing as claimed in claim 1, wherein: in the air guide mechanism, a floating ball is connected with an air guide tube through a buckle, and a heavy hammer is connected with the floating ball through the buckle.
3. The exhaust apparatus for steam turbine cylinder hydrostatic testing according to claim 1 or 2, wherein: the top of the floating ball is provided with a groove communicated with the inside of the floating ball, two grooves symmetrically distributed along the center of the top of the floating ball or a plurality of grooves which take the center of the top of the floating ball as the center of a circle and are radially distributed along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111096803.8A CN113984393A (en) | 2021-09-18 | 2021-09-18 | Exhaust device for steam turbine cylinder hydrostatic test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111096803.8A CN113984393A (en) | 2021-09-18 | 2021-09-18 | Exhaust device for steam turbine cylinder hydrostatic test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113984393A true CN113984393A (en) | 2022-01-28 |
Family
ID=79736095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111096803.8A Pending CN113984393A (en) | 2021-09-18 | 2021-09-18 | Exhaust device for steam turbine cylinder hydrostatic test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113984393A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087493A1 (en) * | 1982-03-01 | 1983-09-07 | GT Development Corporation | Safety and venting valves and cap for fuel tanks carried on vehicles |
| CN201917452U (en) * | 2010-12-29 | 2011-08-03 | 东方电气集团东方汽轮机有限公司 | Inner cavity blind structure for steam turbine cylinder hydrostatic test |
| CN202970804U (en) * | 2012-11-08 | 2013-06-05 | 中信重工机械股份有限公司 | Single layer layout turbine system |
| CN103364157A (en) * | 2013-07-30 | 2013-10-23 | 东方电气集团东方汽轮机有限公司 | System and method for testing water pressure of turbine cylinder |
| KR20150000756U (en) * | 2013-08-14 | 2015-02-25 | 대우조선해양 주식회사 | Tank air vent apparatus using floating ball |
| CN105606310A (en) * | 2015-12-24 | 2016-05-25 | 江苏金通灵流体机械科技股份有限公司 | Special water inlet and air exhaust device for cylinder water pressure test |
| CN210400729U (en) * | 2019-08-20 | 2020-04-24 | 辽宁红沿河核电有限公司 | Floating ball type exhaust device |
| CN213544208U (en) * | 2020-11-19 | 2021-06-25 | 金川集团股份有限公司 | Pressure vessel hydrostatic test exhaust apparatus |
-
2021
- 2021-09-18 CN CN202111096803.8A patent/CN113984393A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087493A1 (en) * | 1982-03-01 | 1983-09-07 | GT Development Corporation | Safety and venting valves and cap for fuel tanks carried on vehicles |
| CN201917452U (en) * | 2010-12-29 | 2011-08-03 | 东方电气集团东方汽轮机有限公司 | Inner cavity blind structure for steam turbine cylinder hydrostatic test |
| CN202970804U (en) * | 2012-11-08 | 2013-06-05 | 中信重工机械股份有限公司 | Single layer layout turbine system |
| CN103364157A (en) * | 2013-07-30 | 2013-10-23 | 东方电气集团东方汽轮机有限公司 | System and method for testing water pressure of turbine cylinder |
| KR20150000756U (en) * | 2013-08-14 | 2015-02-25 | 대우조선해양 주식회사 | Tank air vent apparatus using floating ball |
| CN105606310A (en) * | 2015-12-24 | 2016-05-25 | 江苏金通灵流体机械科技股份有限公司 | Special water inlet and air exhaust device for cylinder water pressure test |
| CN210400729U (en) * | 2019-08-20 | 2020-04-24 | 辽宁红沿河核电有限公司 | Floating ball type exhaust device |
| CN213544208U (en) * | 2020-11-19 | 2021-06-25 | 金川集团股份有限公司 | Pressure vessel hydrostatic test exhaust apparatus |
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Application publication date: 20220128 |
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| RJ01 | Rejection of invention patent application after publication |