CN103728334A - Bearing test device for simulating wall-surface condensation phenomenon - Google Patents
Bearing test device for simulating wall-surface condensation phenomenon Download PDFInfo
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- CN103728334A CN103728334A CN201310742699.4A CN201310742699A CN103728334A CN 103728334 A CN103728334 A CN 103728334A CN 201310742699 A CN201310742699 A CN 201310742699A CN 103728334 A CN103728334 A CN 103728334A
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Abstract
The invention relates to a bearing test device for simulating the wall-surface condensation phenomenon. The bearing test device comprises a condensation steel plate and a bearing plate, wherein the bearing plate fixedly connected with the condensation steel plate so as to form a channel for gas to be condensed and bear the pressure in a pressurized-water reactor containment vessel under the simulated accident condition. The bearing test device has the features of simple structure, low cost, convenience in construction, and higher security.
Description
Technical field
The present invention relates to analyze and survey control technology field, specifically, relate to a kind of special-shaped pressure-bearing testing device of simulating wall condensation.
Background technology
CAP1400 advanced pressurized water reactor is that China is introducing, digests, absorbing the product of innovating again on AP1000 basis, and CAP1400 Passive containment cooling system (PCS) is one of important passive safety system of CAP1400.Its PCS coolant mechanism is to utilize steel containment vessel as heat-exchange carrier, and the steam spurting during accident is in the condensation of containment inside surface and add hot inner surfaces, by heat, is conducted heat is delivered to steel sheel outside.Therefore, the condensation heat transfer phenomenon of steam containment inside surface under emergency conditions and rule are the important evidence of CAP1400 advanced pressurized water reactor design, and under research emergency conditions, the condensation heat transfer phenomenon of containment inside surface need to be built the test unit that can simulate fundamemtal phenomena.The fundamemtal phenomena of test unit simulation should be the condensation heat transfer on large space flat board, and should be able to bear the pressure limit of containment under emergency conditions, and realizes visual.
Yet in the performance history of AP1000, US Westinghouse company is used for carrying out for studying the test unit of the special experimental study of the dull and stereotyped condensation of large space and only can works under normal pressure, and phenomenon after can not simulated accident lower casing internal pressure raising.Therefore this has obviously ignored the pressure condition in containment in accident, the condensation heat transfer phenomenon of the containment inside surface under simulated accident condition more exactly.
In addition, although the other field in the energy, chemical industry and daily life, condensation heat transfer is also the phenomenon that is widely used and studies, but completely different from the condition of containment inside surface condensation by the condensation of experimental study in the existing document in these fields, thereby their test unit can not meet the dull and stereotyped condensation of simulation large space and the condition of bearing accident pressure simultaneously.
Therefore, need a kind of test unit in this area, it can simulate the containment inside surface condensation heat transfer phenomenon under emergency conditions exactly always.
Summary of the invention
The object of the invention is to propose a kind of pressure-bearing testing device of simulating wall condensation, to analyze steam in the condensation heat transfer rule on specific facilities surface.
A kind of for simulating the special-shaped pressure-bearing testing device of wall condensation, comprise condensation steel plate, and and the pressure-bearing steel plate of the common decomposition pressure container of condensation steel plate, also comprise the coldplate being placed on condensation steel plate outside surface, be placed in the coating on condensation inner surface of steel plate, between condensation steel plate and pressure-bearing steel plate, adopt heat insulating washer sealing, and form the main flow runner of square-section, on pressure-bearing steel plate, be provided with view window and measurement instrument, test unit outlet is also provided with mozzle.During test, steam or the mixed gas that contains steam enter from pressure container inlet, and it produces and condense at condensation inner surface of steel plate, for studying vapour condensation heat transfer rule.
Described coating is consistent with the surfacing chemical composition and the surface structure that simulated facility.
In described coldplate, there is grooved raceway groove, in raceway groove, be connected with heat eliminating medium, the heat producing for taking away steam condensation.
Described heat insulating washer can comprise: at least one in asbestos rubber, teflon, fluororubber, silication rubber or multilayer materials.
Described view window material can be quartz glass, Pyrex, aluminosilicate glass, PPSU, polysulfones, polyarylate, polymethylmethacrylate.
Also comprise the video camera and the light source that are arranged on view window outside.
Described measurement instrument comprises: temperature instrumentation, pressure instrumentation, hygrometer, flowmeter, weighing instrument.
Described coldplate and pressure-bearing steel plate outside surface are coated with insulation material.
The invention has the advantages that:
1) between condensation steel plate of the present invention and pressure-bearing steel plate, adopt heat insulating washer sealing can effectively stop heat to be conducted to pressure-bearing steel plate by condensation steel plate, therefore can simulate accurately wall condensation, for studying vapour condensation heat transfer rule.
2) chemical composition of surfacing affects the condensation patterns of steam, the surface structure of surfacing affects the congealing property of steam, the condensation steel plate coating consistent with simulateding the chemical composition of surfacing of facility and surface structure that the present invention adopts, can simulate steam condensation condition accurately.
3) device that the present invention adopts has mozzle, for deriving the steam being condensed at condensation steel plate internal face, analyzes vapour condensation heat transfer rule.
4) apparatus structure of the present invention's employing is simple, cost is low, enforcement is convenient, and security is good.
The application also provides following scheme:
1. 1 kinds of schemes, for simulating the pressure-bearing testing device of wall condensation, is characterized in that, described pressure-bearing testing device comprises condensation steel plate and bearing plate, thereby described bearing plate is fixedly attached to condensation steel plate, forms the runner for the treatment of condensed gas; Between described bearing plate and described condensation steel plate, be fixedly connected with the pressure in presurized water reactor containment under the emergency conditions that can bear simulation.
The pressure-bearing testing device of scheme 2. as described in scheme 1, is characterized in that, at the outside surface of described condensation steel plate, is fixedly connected with coldplate, between described coldplate and described condensation steel plate, is formed with coolant guiding channel.
The pressure-bearing testing device of scheme 3. as described in scheme 1, is characterized in that, between described bearing plate and described condensation steel plate, is provided with adiabatic gasket seal.
The pressure-bearing testing device of scheme 4. as described in scheme 3, is characterized in that, described adiabatic gasket seal comprises: at least one in asbestos rubber, teflon, fluororubber, silication rubber.
The pressure-bearing testing device of scheme 5. as described in scheme 3, is characterized in that, described adiabatic gasket seal is the adiabatic sealing gasket of bilayer that fluororubber and it-plate form.
The pressure-bearing testing device of scheme 6. as described in scheme 1, is characterized in that, on the inside surface of described condensation steel plate, is provided with coating, and described coating is consistent with the surfacing that simulated facility aspect chemical composition and surface structure.
The pressure-bearing testing device of scheme 7. as described in scheme 1, is characterized in that, described bearing plate has U-shaped cross-section, thereby forms square runner.
The pressure-bearing testing device of scheme 8. as described in scheme 1, is characterized in that, is provided with view window and measurement instrument on the sidewall of described bearing plate.
The pressure-bearing testing device of scheme 9. as described in scheme 8, is characterized in that, described measurement instrument comprises at least one in thermopair, temperature instrumentation, pressure instrumentation, hygrometer, flowmeter, weighing instrument; Described view window comprises at least one in quartz glass, Pyrex, aluminosilicate glass, PPSU, polysulfones, polyarylate, polymethylmethacrylate.
The pressure-bearing testing device of scheme 10. as described in scheme 1, is characterized in that, in the outside of bearing plate and coldplate, is coated with insulation material.
The pressure-bearing testing device of scheme 11. as described in scheme 1, is characterized in that, also comprise for treating the entrance of condensed gas access to plant and the outlet of flowing out for uncondensed gas, and for collecting the mozzle of liquid after condensation of gas.
The pressure-bearing testing device of scheme 12. as described in scheme 8, is characterized in that, at view window, industrial camera and light source is installed outward.
Accompanying drawing explanation
Fig. 1 is for simulating the special-shaped pressure-bearing testing device schematic diagram of wall condensation according to of the present invention;
Fig. 2 is the cross section enlarged diagram of A part in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, concrete structure of the present invention, the course of work and preferred forms are described further.Following examples are intended to explain the present invention, and can not be interpreted as limitation of the present invention.
With reference to Fig. 1, it shows one embodiment of the present of invention.Shown in Fig. 1 for simulating the pressure-bearing testing device of wall condensation, also can be described as for simulating the special-shaped pressure-bearing testing device of wall condensation.This test unit mainly comprises condensation steel plate 1, pressure-bearing steel plate 2, stainless steel coldplate 3.Stainless steel coldplate 3 is preferably bolted the upper surface of condensation steel plate 1, and stainless steel coldplate 3 offers groove in the face of on the surface of condensation steel plate 1, thereby stainless steel coldplate 3 defines the passage of crossing for flow of cooling medium together with condensation steel plate 1, to take away heat from condensation steel plate 1.Preferably, described groove is snakelike groove, but also can adopt parallel groove.This heat eliminating medium is deionized water preferably, but it will be appreciated by those skilled in the art that other suitable heat eliminating medium also can be used.Pressure-bearing steel plate 2 has " U " shape xsect, and the open end of pressure-bearing steel plate 2 is fixed to the lower surface of condensation steel plate 1, thereby forms the main flow runner 6 of square-section.It should be appreciated by those skilled in the art that according to actual needs, the cross section of pressure-bearing steel plate 2 can be also other shape.Pressure-bearing steel plate 2 can be integrally formed, can be to be also formed by connecting by independent parts, for example welding.Pressure-bearing steel plate 2 is preferably selected 304 stainless steels, to prevent corrosion under steam ambient.But it will be appreciated by those skilled in the art that and also can use other suitable material.
Preferably, between pressure-bearing steel plate 2 and condensation steel plate 1, be provided with heat insulating washer 5, this forms sealing on the one hand to prevent steam leakage, stops on the other hand the transmission of heat by contact between pressure-bearing steel plate 2 and condensation steel plate 1, thereby guarantees the accurate simulation to wall condensation.Described heat insulating washer can comprise: at least one in asbestos rubber, teflon, fluororubber, silication rubber or multilayer materials.More preferably, heat insulating washer 5 is adiabatic sealing gaskets of bilayer that fluororubber and it-plate form.
As those skilled in the art can understand, the chemical composition of surfacing affects the condensation patterns of steam, and the surface structure of surfacing affects the congealing property of steam.Therefore, in order to simulate more accurately wall condensation, preferably, on the inside surface of condensation steel plate 1, be provided with condensation steel plate coating 4, zinc-rich coating preferably, thus make this condensation steel plate coating consistent with the surfacing that simulated facility aspect chemical composition and surface structure.
In order to be adjusted in the temperature of the heat eliminating medium in the groove of stainless steel coldplate 3, preferably, at the two ends of described passage, be connected with constant temperature water tank.
In order to reach as early as possible stable mode of operation, preferably, on the outside surface of pressure-bearing steel plate 2 and stainless steel coldplate 3, be coated with one layer of heat preservation material.It will be appreciated by those skilled in the art that and can use insulation material suitable in this area.
In addition, test unit also comprises gas access 10 and the gas vent 11 for steam turnover.Test unit is also provided with mozzle 9, for deriving the steam being condensed at condensation steel plate 1 inside surface, analyzes vapour condensation heat transfer rule.
For the ease of observing and measuring, preferably, view window 7 is set on the sidewall of pressure-bearing steel plate 2, the visor of view window 7 is provided with industrial camera and light source outward, for recording process of the test.More preferably, view window material can be quartz glass, Pyrex, aluminosilicate glass, PPSU, polysulfones, polyarylate, polymethylmethacrylate.Most preferably, view window 7 comprises circular tempering Pyrex visor.Preferably, occasionally measurement instrument 8 of thermoelectricity is also installed on pressure-bearing steel plate 2, for testing the temperature and pressure parameter of pressure-bearing testing device.Described measurement instrument comprises: temperature instrumentation, pressure instrumentation, hygrometer, flowmeter, weighing instrument.
During test, steam is 10 inflows from pressure vessel gas access, and the condensation steel plate 1 of this pressure-bearing testing device of process, and this condensation steel plate 1 is the main surface that vapour condensation heat transfer occurs under stable state.The steam not condensing flows out from pressure-bearing testing device outlet 11.The steam being condensed at condensation steel plate internal face is derived from mozzle 9, analyzes vapour condensation heat transfer rule.
Below by reference to the accompanying drawings the specific embodiment of the present invention is described; but these explanations can not be understood to limit scope of the present invention; protection scope of the present invention is limited by the claims of enclosing, and any change on the claims in the present invention basis is all protection scope of the present invention.
Claims (12)
1. for simulating a pressure-bearing testing device for wall condensation, it is characterized in that, described pressure-bearing testing device comprises condensation steel plate and bearing plate, thereby described bearing plate is fixedly attached to condensation steel plate, forms the runner for the treatment of condensed gas; The described bearing plate being fixedly connected with and described condensation steel plate can bear the pressure in presurized water reactor containment under the emergency conditions of simulation.
2. pressure-bearing testing device as claimed in claim 1, is characterized in that, at the outside surface of described condensation steel plate, is fixedly connected with coldplate, between described coldplate and described condensation steel plate, is formed with coolant guiding channel.
3. pressure-bearing testing device as claimed in claim 1, is characterized in that, between described bearing plate and described condensation steel plate, is provided with adiabatic gasket seal.
4. pressure-bearing testing device as claimed in claim 3, is characterized in that, described adiabatic gasket seal comprises: at least one in asbestos rubber, teflon, fluororubber, silication rubber.
5. pressure-bearing testing device as claimed in claim 3, is characterized in that, described adiabatic gasket seal is the adiabatic sealing gasket of bilayer that fluororubber and it-plate form.
6. pressure-bearing testing device as claimed in claim 1, is characterized in that, on the inside surface of described condensation steel plate, is provided with coating, and described coating is consistent with the surfacing that simulated facility aspect chemical composition and surface structure.
7. pressure-bearing testing device as claimed in claim 1, is characterized in that, described bearing plate has U-shaped cross-section, thereby forms square runner.
8. pressure-bearing testing device as claimed in claim 1, is characterized in that, is provided with view window and measurement instrument on the sidewall of described bearing plate.
9. pressure-bearing testing device as claimed in claim 8, is characterized in that, described measurement instrument comprises at least one in thermopair, temperature instrumentation, pressure instrumentation, hygrometer, flowmeter, weighing instrument; Described view window comprises at least one in quartz glass, Pyrex, aluminosilicate glass, PPSU, polysulfones, polyarylate, polymethylmethacrylate.
10. pressure-bearing testing device as claimed in claim 1, is characterized in that, in the outside of bearing plate and coldplate, is coated with insulation material.
11. pressure-bearing testing devices as claimed in claim 1, is characterized in that, also comprise for treating the entrance of condensed gas access to plant and the outlet of flowing out for uncondensed gas, and for collecting the mozzle of liquid after condensation of gas.
12. pressure-bearing testing devices as claimed in claim 8, is characterized in that, at view window, industrial camera and light source are installed outward.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310742699.4A CN103728334A (en) | 2013-12-30 | 2013-12-30 | Bearing test device for simulating wall-surface condensation phenomenon |
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| CN201310742699.4A CN103728334A (en) | 2013-12-30 | 2013-12-30 | Bearing test device for simulating wall-surface condensation phenomenon |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106710646A (en) * | 2015-11-12 | 2017-05-24 | 国核华清（北京）核电技术研发中心有限公司 | Pressure bearing test device |
| CN112964747A (en) * | 2021-03-10 | 2021-06-15 | 北京科技大学 | Gas condensation visualization and heat exchange characteristic detection device and method |
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| CN101963588A (en) * | 2010-08-24 | 2011-02-02 | 华东理工大学 | System for evaluating condensation heat transfer effect |
| CN102650603A (en) * | 2011-02-23 | 2012-08-29 | 富士通株式会社 | Condensation sensing device, electronic apparatus, and condensation sensing method |
| CN103165199A (en) * | 2011-12-14 | 2013-06-19 | 巴布科克和威尔科克斯核能股份有限公司 | Emergency core cooling system (eccs) for nuclear reactor employing closed heat transfer pathways |
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Patent Citations (6)
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| WO2005098403A1 (en) * | 2004-03-30 | 2005-10-20 | Yamatake Corporation | Moisture detection device |
| CN101303339A (en) * | 2008-06-26 | 2008-11-12 | 中国人民解放军总后勤部军需装备研究所 | Fire field environmental simulation system |
| CN101788510A (en) * | 2010-01-29 | 2010-07-28 | 浙江大学 | Fluid tube internal heat exchange coefficient measuring device provided with condensing pressure adjusting module |
| CN101963588A (en) * | 2010-08-24 | 2011-02-02 | 华东理工大学 | System for evaluating condensation heat transfer effect |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710646A (en) * | 2015-11-12 | 2017-05-24 | 国核华清（北京）核电技术研发中心有限公司 | Pressure bearing test device |
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| CN112964747A (en) * | 2021-03-10 | 2021-06-15 | 北京科技大学 | Gas condensation visualization and heat exchange characteristic detection device and method |
| CN112964747B (en) * | 2021-03-10 | 2022-04-22 | 北京科技大学 | Gas condensation visualization and heat exchange characteristic detection device and method |
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Application publication date: 20140416 |
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