CN107403651B - Containment thermal hydraulic experiment system with movable working platform - Google Patents
Containment thermal hydraulic experiment system with movable working platform Download PDFInfo
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- CN107403651B CN107403651B CN201710437893.XA CN201710437893A CN107403651B CN 107403651 B CN107403651 B CN 107403651B CN 201710437893 A CN201710437893 A CN 201710437893A CN 107403651 B CN107403651 B CN 107403651B
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/001—Mechanical simulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to the technical field of thermal hydraulic experiments of containment vessels of nuclear power plants, and particularly relates to a thermal hydraulic experiment system of containment vessels with a movable working platform. Including fixed casing (1), be located activity work platform (2) in fixed casing (1), activity work platform (2) constitute confined experiment big space jointly, activity work platform (2) are in level in fixed casing (1) can be adjusted, still including setting up reactor analog structure in the experiment big space, run through the setting and be in spout on the activity work platform (2) and put the pipeline, set up activity work platform (2) below, with spout and put the pipeline and link to each other, to experiment big space provides the mass energy release analog device that shell inner quality can release the process. The system can obtain variable large experimental space and meet the requirements of containment thermal hydraulic experiments under different volume conditions.
Description
Technical Field
The invention belongs to the technical field of thermal hydraulic experiments of containment vessels of nuclear power plants, and particularly relates to a thermal hydraulic experiment system of containment vessels with a movable working platform.
Background
The third generation nuclear power system is provided with a passive containment heat export system, such as: AP600&1000-PCS, ABWRII-PCCS, AHWR-PCCS, ESBWR-PCCS, SWR1000-PCCS, WWER640-PCCS, WWER1000-PCCS, ACP1000&100-PCS, CAP1400&1700-PCS, and the like. The verification of the comprehensive performance of the passive containment heat exporting system through a thermal hydraulic experiment is a necessary condition that the nuclear power plants of the models are reviewed by an auditing authority, so that most of the nuclear power plants of the models can establish a corresponding containment thermal hydraulic experiment system in a design stage. An experiment bench serving the AP600&1000-PCS is built in Pittsburgh by West House company in America; the WWER-PCCS bench was set in St. Peterburg; the PCS experiment table of the nuclear power plant of the carrier group ACP series is built in Harbin and a corridor; the PCS experiment bench for state power switching to CAP series nuclear power plants is positioned in Zhengzhou, Shanghai and other places; the PCS experiment bench of the nuclear power plant of the Zhongguang nuclear CPR series is arranged in Shenzhen. The common characteristic of each containment thermal hydraulic experiment system is that the experiment is large in space and fixed in volume, so that the utilization rate of one experiment system is linearly reduced after the experiment system is designed in a nuclear power plant with a corresponding model, and waste is generated. A plurality of PCS large-scale thermal hydraulic experimental benches are established in each nuclear power group in China all over the country, which is waste of repeated construction in a certain sense.
Disclosure of Invention
Aiming at the defect that the experimental large space volume of the containment thermal hydraulic experimental system is fixed at present, the variability of the experimental large space volume of the containment thermal hydraulic experimental system is expected to be realized, so that the system has flexibility in the aspects of research on the thermal hydraulic characteristics of the containment vessels of different models of nuclear power plants and research and development of equipment in the containment vessels.
In order to achieve the above purpose, the invention adopts the technical scheme that the containment thermal hydraulic experiment system with the movable working platform comprises a fixed shell and the movable working platform, wherein the movable working platform is positioned in the fixed shell, the fixed shell and the movable working platform jointly form a closed experiment large space, the horizontal height of the movable working platform in the fixed shell can be adjusted, the containment thermal hydraulic experiment system also comprises a reactor simulation structure arranged in the experiment large space, a spraying pipeline penetrating the movable working platform, and mass energy release simulation equipment which is arranged below the movable working platform, is connected with the spraying pipeline and provides a shell mass energy release process for the experiment large space.
Furthermore, a plurality of connecting hole arrays distributed in the circumferential direction are arranged on the vertical wall surface of the fixed shell, each connecting hole array is formed by connecting holes of the shell and the working platform, the connecting holes are distributed in the circumferential direction on the vertical wall surface and are located in the same horizontal plane, and the connecting hole arrays are distributed on different heights according to the central axis elevation of the fixed shell.
Furthermore, a shell-working platform connecting piece is arranged at the edge of the movable working platform, and the movable working platform is connected with the shell-working platform connecting hole through the shell-working platform connecting piece to realize the connection of the movable working platform and the fixed shell.
Furthermore, a first step circle protruding upwards is arranged on the edge of the upper surface of the movable working platform, a sealing ring in the working platform shell is arranged at the first step circle, a second step circle protruding downwards is arranged on the sealing ring in the working platform shell, the sealing ring in the working platform shell is connected with the shell-working platform connecting hole through a bolt, and the first step circle of the movable working platform is buckled with the second step circle of the sealing ring in the working platform shell to realize the sealing between the upper surface of the movable working platform and the fixed shell; the edge of the lower surface of the movable working platform is provided with a working platform shell outer sealing ring, and the working platform shell outer sealing ring is connected with the shell-working platform connecting hole through a bolt, so that the lower surface of the movable working platform is sealed with the fixed shell.
Further, activity work platform bottom is equipped with a plurality of work platform lifters, the work platform lifter be used for with activity work platform jacking extremely the height that needs in the fixed casing.
Further, the reactor simulation structure is arranged above the movable working platform and comprises a reactor simulation body and a simulation structure similar to structures, equipment, containers or water bodies in a containment vessel of a nuclear power plant.
Furthermore, the spraying pipeline comprises a pit stacking spraying branch pipe and an auxiliary compartment spraying branch pipe which are arranged on the movable working platform in a penetrating mode through a spraying pipe penetrating piece, and a spraying main pipe which is arranged below the movable working platform and connected with the pit stacking spraying branch pipe and the auxiliary compartment spraying branch pipe.
Further, the spraying pipeline is connected with the mass-energy release simulation equipment through a replaceable connecting pipe set, the top end of the replaceable connecting pipe set is connected with the spraying main pipe, the bottom of the replaceable connecting pipe set is connected with the mass-energy release simulation equipment, the replaceable connecting pipe set is composed of pipelines, expansion joints and connecting pieces, the pipelines and the expansion joints are different in size, and the movable working platform can be connected with the mass-energy release simulation equipment under the condition of different elevations in the fixed shell.
Further, the mass energy release simulation equipment comprises a helium storage tank, a hydrogen storage tank and an aerosol storage tank which are arranged below the movable working platform and provided with a fan, and an electric boiler which is connected with the replaceable connecting pipe set and heated by an electric heater, wherein the electric boiler is used for lifting steam required by the release process of the mass energy in the shell.
The measuring device further comprises a plurality of shell inner suspension wires arranged at different positions above the inside of the fixed shell and used for fixing a plurality of distributed measuring points.
The invention has the beneficial effects that:
1. the horizontal height in the fixed shell (1) can be adjusted through the movable working platform (2), so that the system obtains a variable experiment large space, can be used for researching the thermal hydraulic characteristics of containment vessels of nuclear power plants of different models and researching and developing devices in the shells, is high in utilization rate of test devices, and avoids waste caused by repeated construction.
2. Through the connecting hole array, the movable working platform (2) can be stably fixed in the fixed shell (1).
3. The movable working platform (2) and the fixed shell (1) are sealed by arranging the working platform shell inner sealing ring (3) and the working platform shell outer sealing ring (4), and the sealing performance of the large experimental space is ensured.
4. The height of the movable working platform (2) can be conveniently changed through the working platform jacking device (7), so that the volume of an experiment large space is changed, and the requirements of containment thermal hydraulic experiments under different volume conditions are met.
5. The spraying pipeline is connected with the mass energy release simulation equipment through the replaceable connecting pipe set (16), so that the spraying pipeline can adapt to the experiment requirements of the movable working platform (2) at different heights, and the smooth performance of the shell mass energy release process is ensured.
Drawings
FIG. 1 is a schematic diagram of a containment thermal-hydraulic experimental system with a movable working platform according to an embodiment of the present invention;
in the figure: 1-a fixed shell, 2-a movable working platform, 3-a working platform shell inner sealing ring, 4-a working platform shell outer sealing ring, 5-a shell-a working platform connecting piece, 6-a shell-a working platform connecting hole, 7-a working platform jacking device, 8-a hydraulic pump, 9-a spraying main pipe, 10-a pit stack spraying branch pipe, 11-a pit spraying head, 12-a reactor analog body, 13-an auxiliary compartment spraying head, 14-an auxiliary compartment spraying branch pipe, 15-a spraying pipe penetrating piece, 16-a replaceable connecting pipe set, 17-a fan, 18-a helium gas storage tank, 19-a hydrogen gas storage tank, 20-an aerosol storage tank, 21-a gas supply branch pipe, 22-an electric boiler, 23-an electric heater and 24-a steam supply branch pipe, 25-shell safety/pressure relief valve, 26-suspension wires in the shell, 27-distributed measuring points, 28-equipment and personnel gate and 29-simulation height schematic of the movable working platform.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in FIG. 1, the containment thermal hydraulic experiment system with the movable working platform provided by the invention comprises a fixed shell 1, the movable working platform 2, a blowing pipeline, a reactor simulation structure, mass-energy release simulation equipment and a working platform jacking device 7.
Wherein, activity work platform 2 is located fixed casing 1, and fixed casing 1, activity work platform 2 constitute confined experiment big space jointly, and the level of activity work platform 2 in fixed casing 1 can be adjusted, through highly adjusting activity work platform 2 to the volume variability in big space of experiment has been realized.
The reactor simulation structure is arranged in a large experimental space, particularly above the movable working platform 2, and comprises a reactor simulation body 12 and a simulation structure similar to structures, equipment, containers or water bodies in a containment vessel of a nuclear power plant.
The movable working platform 2 is provided with a spraying pipeline in a penetrating mode, mass energy release simulation equipment is arranged below the movable working platform 2 and connected with the spraying pipeline and used for providing a shell inner mass energy release process for an experiment large space.
The vertical wall surface of the fixed shell 1 is provided with a plurality of shell-work platform connecting holes 6, the shell-work platform connecting holes 6 are circumferentially distributed on the vertical wall surface of the fixed shell 1 and are arranged into a plurality of connecting hole arrays, each connecting hole array is composed of a plurality of shell-work platform connecting holes 6 which are circumferentially distributed on the vertical wall surface and are positioned in the same horizontal plane, and each connecting hole array is distributed on different heights according to the central axis elevation of the fixed shell 1.
The edge of the movable working platform 2 is provided with a shell-working platform connecting piece 5, and the movable working platform 2 is connected with a shell-working platform connecting hole 6 through the shell-working platform connecting piece 5 to realize the connection of the movable working platform 2 and the fixed shell 1.
The edge of the upper surface of the movable working platform 2 is provided with a first step circle, the first step circle is upwards convex, the first step circle is provided with a sealing ring 3 in the working platform shell, the sealing ring 3 in the working platform shell is provided with a second step circle, the second step circle is downwards convex, the sealing ring 3 in the working platform shell is connected with a shell-working platform connecting hole 6 through a bolt, the first step circle on the movable working platform 2 is buckled with the second step circle on the sealing ring 3 in the working platform shell, and therefore sealing between the upper surface of the movable working platform 2 and the fixed shell 1 is achieved; the lower surface edge of the movable working platform 2 is provided with a working platform shell outer sealing ring 4, and the working platform shell outer sealing ring 4 is connected with a shell-working platform connecting hole 6 through a bolt, so that the lower surface of the movable working platform 2 is sealed with the fixed shell 1.
A plurality of working platform lifters 7 are arranged below the bottom of the movable working platform 2, and the working platform lifters 7 are used for lifting the movable working platform 2 to a required height in the fixed shell 1 (see the dotted line part indicated by 29 in fig. 1).
The spraying pipeline comprises a spraying main pipe 9, a pit pile spraying branch pipe 10 and an auxiliary compartment spraying branch pipe 14. Wherein, the spraying main pipe 9 is arranged below the movable working platform 2; more than one auxiliary compartment spraying branch pipe 14 is arranged on the movable working platform 2 in a penetrating way through a spraying pipe penetrating piece 15, one end of the auxiliary compartment spraying branch pipe is connected with the spraying main pipe 9, the outlet of the other end of the auxiliary compartment spraying branch pipe extends into the large experimental space above the movable working platform 2, and an auxiliary compartment spray head 13 is arranged on the outlet of the auxiliary compartment spraying branch pipe 14; the branch pipe 10 is spouted in pit heap, all sets up in the experiment big space of activity work platform 2 top (be located reactor analog body 12 below), and the one end of branch pipe 10 is spouted in pit heap is run through the setting on activity work platform 2 and is linked to each other with spouting total 9 through spouting a tub penetration piece 15, is provided with on the export of the other end and piles pit shower nozzle 11 (be located reactor analog body 12 below).
The spraying and discharging pipeline is connected with the mass energy release simulation equipment through the replaceable connecting pipe set 16, the top end of the replaceable connecting pipe set 16 is connected with the spraying and discharging main pipe 9, the bottom of the replaceable connecting pipe set is connected with the mass energy release simulation equipment, the replaceable connecting pipe set 16 is composed of pipelines, expansion joints and connecting pieces in different sizes, and the movable working platform 2 can be connected with the mass energy release simulation equipment under the condition of different elevations in the fixed shell 1.
The mass-energy release simulation equipment comprises a helium storage tank 18, a hydrogen storage tank 19, an aerosol storage tank 20 and an electric boiler 22 which are arranged below the movable working platform 2, wherein the helium storage tank 18, the hydrogen storage tank 19 and the aerosol storage tank 20 are respectively provided with a fan 17, and the helium storage tank 18, the hydrogen storage tank 19 and the aerosol storage tank 20 are respectively connected with a replaceable connecting pipe set 16 through a gas supply branch pipe 21. The electric boiler 22 is heated by an electric heater 23, and the electric boiler 22 is connected to the replaceable connection pipe set 16 through a steam supply branch pipe 24 for supplying steam required for the in-shell mass energy release process.
The device also comprises a plurality of shell internal suspension wires 26 arranged at different positions above the inside of the fixed shell 1 and used for fixing a plurality of distributed measuring points 27 to form a distributed parameter measuring subsystem.
The specific operation steps of the containment thermal hydraulic experiment system with the movable working platform for realizing large-space volume change of the experiment provided by the invention are as follows:
STEP 1: the working platform jacking device 7 enters a working state, lifts the movable working platform 2, and enables the lifting load to reach a preset value;
STEP 2: all movement constraints of the movable working platform 2 are removed, so that the movable working platform can be jacked by the working platform jacking device 7 and moves along the vertical direction;
STEP 3: operating the working platform jacking device 7 to enable the movable working platform 2 to reach the required experiment preparation elevation position;
STEP 4: installing an inner sealing ring 3 of the working platform shell and an outer sealing ring 4 of the working platform shell, and fixing the movable working platform 2;
STEP 5: the working platform jack 7 is switched to a standby state.
The device according to the present invention is not limited to the embodiments described in the specific embodiments, and those skilled in the art can derive other embodiments according to the technical solutions of the present invention, and also belong to the technical innovation scope of the present invention.
Claims (10)
1. A containment thermal hydraulic experiment system with a movable working platform comprises a fixed shell (1), and is characterized in that: still including being located activity work platform (2) in fixed casing (1), activity work platform (2) constitute confined experiment big space jointly, activity work platform (2) are in level in fixed casing (1) can be adjusted, still including setting up reactor analog structure in the experiment big space, run through the setting and be in spout on the activity work platform (2) puts the pipeline and set up and be in activity work platform (2) below, with spout and put the pipeline and link to each other, to experiment big space provides the mass energy release analog device of shell internal matter ability release process.
2. The containment thermal hydraulic experiment system with the movable working platform as set forth in claim 1, wherein: the vertical wall surface of the fixed shell (1) is provided with a plurality of connecting hole arrays distributed in the circumferential direction, each connecting hole array is formed by connecting holes (6) of a shell and a working platform, the connecting holes are distributed in the circumferential direction on the vertical wall surface and are located in the same horizontal plane, and the connecting hole arrays are distributed on different heights according to the central axis elevation of the fixed shell (1).
3. The containment thermal hydraulic power experimental system with the movable working platform as claimed in claim 2, wherein: the edge of the movable working platform (2) is provided with a shell-working platform connecting piece (5), and the movable working platform (2) is connected with the shell-working platform connecting hole (6) through the shell-working platform connecting piece (5) to realize the connection of the movable working platform (2) and the fixed shell (1).
4. The containment thermal hydraulic power experimental system with the movable working platform as claimed in claim 3, wherein: the edge of the upper surface of the movable working platform (2) is provided with a first step circle which protrudes upwards, a sealing ring (3) in the working platform shell is arranged at the position of the first step circle, a second step circle which protrudes downwards is arranged on the sealing ring (3) in the working platform shell, the sealing ring (3) in the working platform shell is connected with the shell-working platform connecting hole (6) through a bolt, and the first step circle of the movable working platform (2) is buckled with the second step circle of the sealing ring (3) in the working platform shell to realize the sealing between the upper surface of the movable working platform (2) and the fixed shell (1); the movable working platform is characterized in that a working platform shell outer sealing ring (4) is arranged on the lower surface edge of the movable working platform (2), the working platform shell outer sealing ring (4) is connected with the shell-working platform connecting hole (6) through a bolt, and sealing between the lower surface of the movable working platform (2) and the fixed shell (1) is achieved.
5. The containment thermal hydraulic power experimental system with the movable working platform as claimed in claim 1, wherein: activity work platform (2) bottom is equipped with a plurality of work platform lifters (7), work platform lifters (7) be used for with activity work platform (2) jacking extremely the height that needs in the fixed casing (1).
6. The containment thermal hydraulic power experimental system with the movable working platform as claimed in claim 1, wherein: the reactor simulation structure is arranged above the movable working platform (2) and comprises a reactor simulation body (12) and a simulation structure similar to structures, equipment, containers or water bodies in a containment vessel of a nuclear power plant.
7. The containment thermal hydraulic power experimental system with the movable working platform as claimed in claim 1, wherein: the spraying pipeline comprises a pit piling spraying branch pipe (10) and an auxiliary compartment spraying branch pipe (14) which are arranged on the movable working platform (2) in a penetrating mode through a spraying pipe penetrating piece (15), and a spraying main pipe (9) which is arranged below the movable working platform (2) and connected with the pit piling spraying branch pipe (10) and the auxiliary compartment spraying branch pipe (14).
8. The containment thermal hydraulic power experimental system with the movable working platform as claimed in claim 7, wherein: the spraying and discharging pipeline is connected with the mass-energy release simulation equipment through a replaceable connecting pipe set (16), the top end of the replaceable connecting pipe set (16) is connected with the spraying and discharging main pipe (9), the bottom of the replaceable connecting pipe set is connected with the mass-energy release simulation equipment, the replaceable connecting pipe set (16) is composed of pipelines, expansion joints and connecting pieces in different sizes, and the movable working platform (2) can be connected with the mass-energy release simulation equipment under the condition of different elevations in the fixed shell (1).
9. The containment thermal hydraulic power experimental system with the movable working platform as claimed in claim 8, wherein: the mass-energy release simulation equipment comprises a helium storage tank (18), a hydrogen storage tank (19) and an aerosol storage tank (20) which are arranged below the movable working platform (2) and are provided with a fan (17), and an electric boiler (22) which is connected with the replaceable connecting pipe set (16) and is heated by an electric heater (23), wherein the electric boiler (22) is used for providing steam required by the shell inner mass energy release process.
10. The containment thermal hydraulic power experimental system with the movable working platform as claimed in claim 1, wherein: the testing device also comprises a plurality of shell internal suspension wires (26) which are arranged at different positions above the inner part of the fixed shell (1) and used for fixing a plurality of distributed testing points (27).
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| CN201710437893.XA CN107403651B (en) | 2017-06-12 | 2017-06-12 | Containment thermal hydraulic experiment system with movable working platform |
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| CN201710437893.XA CN107403651B (en) | 2017-06-12 | 2017-06-12 | Containment thermal hydraulic experiment system with movable working platform |
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| CN107403651B true CN107403651B (en) | 2020-12-18 |
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| CN108364702B (en) * | 2018-02-01 | 2019-07-30 | 中国核电工程有限公司 | The low-power consumption three-element mixed gas body component detection system and detection method of moisture vapor |
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