CN202976862U - Containment vessel inside-outside and active-passive combined dehydrogenation system - Google Patents
Containment vessel inside-outside and active-passive combined dehydrogenation system Download PDFInfo
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- CN202976862U CN202976862U CN2012205479860U CN201220547986U CN202976862U CN 202976862 U CN202976862 U CN 202976862U CN 2012205479860 U CN2012205479860 U CN 2012205479860U CN 201220547986 U CN201220547986 U CN 201220547986U CN 202976862 U CN202976862 U CN 202976862U
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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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Abstract
The utility model belongs to the technical field of reactor design, and particularly relates to a containment vessel inside-outside and active-passive combined dehydrogenation system. The dehydrogenation system comprises a containment vessel hydrogen monitoring subsystem, a passive containment vessel dehydrogenation subsystem and an active hydrogen recombiner subsystem. The containment vessel inside-outside and active-passive combined dehydrogenation system disclosed by the utility model increases the diversity of dehydrogenation measures through a containment vessel inside-outside and active-passive combined dehydrogenation means, overcomes the defect of design of the traditional dehydrogenation means, enhances the reliability of the dehydrogenation system and reduces the failure risk of the dehydrogenation system to minimum, thereby controlling the concentration of hydrogen inside a containment vessel within a safety range under an accident condition and preventing the hydrogen explosion from being generated.
Description
Technical field
The utility model belongs to the reactor designing technique, be specifically related to a kind of containment outer with containment in, actively and the hydrogen system that disappears of non-active combination.
Background technology
After design basis accident or major accident occur in nuclear power plant, may produce a large amount of hydrogen accumulates in containment, and may with containment in oxygen react and cause detonation and blast, make and produce high temperature and superpressure in containment, thereby jeopardize the integrality of containment and cause the radioactive leak of containment to surpass setting, also may cause the damage of necessary system and parts after accident.The Fukushima, Japan accident has further confirmed the quick-fried great harm of hydrogen and has taked to disappear the necessity of hydrogen measure.Therefore, in design of nuclear power plant, must provide the hydrogen means that disappear in containment.The hydrogen means that disappear that adopt in design of nuclear power plant at present mainly contain active disappear hydrogen means and the non-active hydrogen means that disappear.
The hydrogen means that actively disappear mainly contain two kinds: mobile hydrogen recombiner and hydrogen igniter.
The mobile hydrogen recombiner is arranged in outside containment, is reserved with the interface with isolation valve on containment.Under accident conditions, after density of hydrogen in monitoring containment reaches setting value, operating personnel access the mobile hydrogen recombiner, hydrogen-containing gas in containment enters the mobile hydrogen recombiner by blower fan and exhaust tube, send back in containment by gas outlet again after the recombiner dehydrogenation, reach with this hydrogen purpose that disappears.
Hydrogen igniter is the distribution situation by hydrogen under the analog computation accident conditions, and lighter is arranged in zones of different in containment.Under accident conditions, after the density of hydrogen in monitoring containment reached setting value, lighter started automatically, and the hydrogen of relatively low concentration is eliminated by the active ignition, prevented that the hydrogen accumulation from reaching the high concentration that fires.
The non-active hydrogen means that disappear are mainly to realize by the non-active hydrogen recombiner that is arranged in containment.By the distribution situation of hydrogen under the analog computation accident conditions, non-active hydrogen recombiner is disposed in and most possibly occurs the zone that hydrogen is assembled in containment.The operation of non-active hydrogen recombiner does not need power supply, monitoring and other supports, and under accident conditions, when the density of hydrogen in containment reached certain value, non-active hydrogen recombiner operation automatically was compound with hydrogen catalysis, thereby reached the purpose of eliminating hydrogen.
The risk that the single hydrogen means that disappear of nuclear power plant's employing at present lost efficacy when all being difficult to the eliminating accident.For the outer active mobile hydrogen recombiner of containment, need to be connected with the interface that containment is reserved during accident, may be unreachable due to operating personnel and the inefficacy of active equipment and unavailable.For the fixed lighter and the non-active hydrogen recombiner that are arranged in containment, may cause losing efficacy due to the internal event that occurs in containment; Simultaneously, the layout of lighter and non-active hydrogen recombiner need to be determined position by the distribution of hydrogen under the analog computation accident conditions, due to the uncertainty of calculating, under accident conditions, some zone the accumulation of hydrogen may occur and can't eliminate, if and there is no in this case the extra hydrogen means that disappear, the quick-fried danger of hydrogen may be assembled and then cause to hydrogen.
The utility model content
The purpose of this utility model is the design defect for the single hydrogen means that disappear in prior art, a kind of new nuclear power plant hydrogen system that disappears is provided, the non-active hydrogen means that disappear in containment outer active disappear hydrogen means and containment are combined, increase the diversity of the hydrogen system that disappears, improve the reliability of the hydrogen system that disappears under accident conditions.
The technical solution of the utility model is as follows: a kind of containment outer with containment in, active and the non-hydrogen system that disappears that actively combines, comprise containment hydrogen monitoring subsystem, non-passive safety shell disappear hydrogen subsystem and active hydrogen recombiner subsystem, described containment hydrogen monitoring subsystem comprises the hydrogen concentration measuring instrument that is arranged on the containment inner and upper, and the hydrogen concentration measuring instrument is connected with the hydrogen concentration Displaying Meter that is arranged on main control room with cable by pipeline; The described non-passive safety shell hydrogen subsystem that disappears comprises the non-active hydrogen recombiner that is arranged on containment inside; Described active hydrogen recombiner subsystem comprises the air circulation duct that is connected with containment that is arranged on the containment outside, connect hydrogen recombiner on air circulation duct, hydrogen recombiner is connected with the console panel that is used for manually booting at a distance, closing, and hydrogen recombiner is fixedly mounted on containment outer (such as the fuel factory building).
Further, the above-mentioned non-passive safety shell hydrogen subsystem that disappears arranges a non-active hydrogen recombiner and is used for design basis accident, satisfies under design basis accident 1 * 100% the Hydrogen Energy power that disappears.
Further, the hydrogen recombiner of above-mentioned active hydrogen recombiner subsystem comprises a blower fan that is used for sucking from containment air containing hydrogen gas, a heatable catalytic reactor, a gas cooler.
Further, the air circulation duct of above-mentioned active hydrogen recombiner subsystem is provided with several interfaces, as required many cover hydrogen recombiners in parallel.This subsystem both had been used for design basis accident and also had been used for major accident.
Further, above-mentioned active hydrogen recombiner is fixedly mounted on containment outer (such as the fuel factory building), but remote control.
The beneficial effects of the utility model are as follows: the utility model provides a kind of new hydrogen system mentality of designing that disappears, by outer with containment in containment, non-actively with the hydrogen means that disappear that actively combine, increased the diversity of the hydrogen measure that disappears, solved the design defect of the existing hydrogen means that disappear, improved the reliability of the hydrogen system that disappears, the hydrogen system failure risk that will disappear is down to minimum, thereby within accident conditions, the hydrogen concentration in containment being controlled at safe range, avoids the generating hydrogen blast.
Description of drawings
Fig. 1 is system architecture of the present utility model and control principle schematic diagram.
Embodiment
Containment provided by the utility model outer with containment in, active and non-actively combine disappear hydrogen system by containment hydrogen monitoring subsystem, non-passive safety shell disappear the hydrogen subsystem and actively the hydrogen recombiner subsystem form, every sub-systems is all distinct with existing design, improve and optimize on existing design basis, to guarantee this combination the disappear reliability of hydrogen and the optimization of design.
Containment hydrogen monitoring subsystem is in order to monitor the density of hydrogen in the containment that (comprises design basis accident and major accident) under accident conditions, this system is manually booted in the pulpit by operator after having an accident, operation with the density of hydrogen in the monitoring containment, provides signal for operator starts and closes active hydrogen recombiner continuously afterwards.This system is comprised of hydrogen concentration measurement instrument, pipeline, valve and cable etc.
At present, domestic nuclear power plant does not also realize arranging density of hydrogen under hydrogen concentration measuring instrument monitoring major accident in containment.In this patent, hydrogen concentration measurement instrument and associated conduit, valve and cable all satisfy reliability requirement under design basis accident and major accident, density of hydrogen that can be in continuous monitoring containment under accident conditions.
The non-passive safety shell hydrogen subsystem that disappears is comprised of non-active catalysis hydrogen recombiner fully independently, by the hydrogen generating quantity in containment under the analog computation accident conditions and distribution situation, arrange the non-active hydrogen recombiner of some in containment, the density of hydrogen under design basis accident and major accident in the restriction containment is below the blast limit value.When the hydrogen concentration in containment reaches certain numerical value, the hydrogen recombiner automatic operation, within the hydrogen concentration in containment was controlled at safe range, system's operation did not rely on power supply and hydrogen concentration monitoring and other supports.
Non-passive safety shell hydrogen subsystem layout and the quantity to non-active hydrogen recombiner on existing design of nuclear power plant basis that disappears is optimized: a non-active hydrogen recombiner is set is used for the hydrogen that disappears under design basis accident, this hydrogen recombiner satisfies 1 * 100% the Hydrogen Energy power that disappears; Existing two non-active hydrogen recombiners of nuclear power plant's operated by rotary motion are used for the hydrogen that disappears under design basis accident.Be identified for non-active hydrogen recombiner quantity under major accident according to the generation of hydrogen concentration, satisfy 1 * 100% the Hydrogen Energy power that disappears; Arrange with existing nuclear power plant and compare, reduced non-active hydrogen recombiner quantity, optimized layout.
The outer active hydrogen recombiner subsystem of containment comprises the hydrogen recombiner system of a complete set of forced circulation, is fixed on containment outer (such as the fuel factory building).This system leaves interface, can according to the active hydrogen recombiner of designing requirement some covers in parallel, satisfy the Hydrogen Energy power requirement that disappears.(comprise design basis accident and major accident) under accident conditions, in the operator receives containment after the hydrogen concentration alerting signal, active hydrogen recombiner subsystem is communicated with containment, air containing hydrogen gas in containment enters hydrogen recombiner by blower fan and exhaust tube, send back in containment by gas outlet more after treatment, so circulation dehydrogenation, thus make within hydrogen concentration in containment is controlled at safe range.This system is comprised of active hydrogen recombiner, power supply and console panel, valve, pipeline, electric wire and instrument.
The design (comprising equipment requirement and configuration) of active hydrogen recombiner subsystem and existing nuclear power plant mobile hydrogen recombiner is different: (1) this system is fixedly mounted on outside containment, arrive joint connection in site without operating personnel under accident conditions, can be in long-range connection and keying; And existing nuclear power plant mobile hydrogen recombiner needs the operator that it is moved to link position and manually connects under accident conditions, often is difficult to realize under accident conditions.(2) this system leaves interface, as required many complete equipments in parallel; The mobile hydrogen recombiner of existing nuclear power plant is this interface not.(3) this system satisfies the hydrogen requirement that disappears of design basis accident and major accident, and the mobile hydrogen recombiner of existing nuclear power plant can only be used for design basis accident.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Embodiment
As shown in Figure 1, containment provided by the utility model outer with containment in, actively with the non-hydrogen system that disappears that actively combines, comprise containment hydrogen monitoring subsystem, non-passive safety shell disappear hydrogen subsystem and active hydrogen recombiner subsystem.Described containment hydrogen monitoring subsystem comprises the hydrogen concentration measuring instrument 2 that is arranged on containment 1 inner and upper, and hydrogen concentration measuring instrument 2 is connected with the hydrogen concentration Displaying Meter that is arranged on main control room 3 with cable by pipeline; The described non-passive safety shell hydrogen subsystem that disappears comprises the non-active hydrogen recombiner 4 that is arranged on containment 1 inside; Described active hydrogen recombiner subsystem comprises the air circulation duct that is connected with containment 5 that is arranged on containment 1 outside, connect hydrogen recombiner 6 on air circulation duct 5, hydrogen recombiner 6 is connected with the console panel (can be arranged on main control room 3) that is used for manually booting at a distance, closing.
The non-passive safety shell of the present utility model hydrogen subsystem that disappears only need arrange the hydrogen that disappears that a non-active hydrogen recombiner 4 is used under design basis accident, this hydrogen recombiner satisfies 1 * 100% the Hydrogen Energy power that disappears, thereby reduced non-active hydrogen recombiner quantity, optimized layout.
The air circulation duct 5 of active hydrogen recombiner subsystem is provided with several interfaces, as required many cover hydrogen recombiners 6 in parallel.Every suit hydrogen recombiner 6 comprises a blower fan that is used for sucking from containment air containing hydrogen gas, a heatable catalytic reactor, a gas cooler (comprising the cooling required blower fan of forced convertion and motor).Air containing hydrogen gas is heated concurrent biochemical water generation reaction (hydrogen and oxygen react) in the heatable catalytic reactor, then with reacted gas cooled, sends back in containment.
Above-mentioned containment is outer interior with containment, active as follows with the method for operation of the non-hydrogen system that disappears that actively combines:
Under accident conditions, when the density of hydrogen in containment reaches setting value, non-active hydrogen recombiner moves elimination hydrogen automatically in containment, simultaneously the hydrogen concentration measuring instrument hydrogen concentration in containment is measured and with data transfer to the outer hydrogen concentration Displaying Meter of containment; When in containment, the hydrogen concentration measuring instrument detects density of hydrogen greater than alarming value, operator starts the outer active hydrogen recombiner of containment, work together with non-active hydrogen recombiner in containment, eliminate the hydrogen in containment, density of hydrogen is controlled in safety limit; When hydrogen concentration in containment is reduced to the safety limit of setting when following, the active hydrogen recombiner that operator's closed safe shell is outer.
The utility model is limited in the hydrogen in containment below the blast limit value by being arranged on the non-active hydrogen recombiner in containment and being arranged in the outer active hydrogen recombiner acting in conjunction of containment.By outer with containment in containment, non-actively with the hydrogen measure that disappears that actively combines, the hydrogen system failure risk that will disappear is down to minimum.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and within modification belongs to the scope of the utility model claim and equivalent technology thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (5)
- A containment outer with containment in, active and the non-hydrogen system that disappears that actively combines, it is characterized in that: comprise containment hydrogen monitoring subsystem, non-passive safety shell disappear hydrogen subsystem and active hydrogen recombiner subsystem, described containment hydrogen monitoring subsystem comprises the hydrogen concentration measuring instrument (2) that is arranged on containment (1) inner and upper, and hydrogen concentration measuring instrument (2) is connected with the hydrogen concentration Displaying Meter that is arranged on main control room (3) with cable by pipeline; The described non-passive safety shell hydrogen subsystem that disappears comprises the non-active hydrogen recombiner (4) that is arranged on containment inside; Described active hydrogen recombiner subsystem comprises the air circulation duct that is connected with containment (5) that is arranged on the containment outside, at the upper hydrogen recombiner (6) that connects of air circulation duct (5), hydrogen recombiner (6) is connected with the console panel that is used for manually booting at a distance, closing, and hydrogen recombiner (6) is fixedly mounted on outside containment (1).
- 2. the hydrogen system that disappears as claimed in claim 1 is characterized in that: the described non-passive safety shell hydrogen subsystem that disappears arranges a non-active hydrogen recombiner (4) and is used for design basis accident, satisfies under design basis accident 1 * 100% the Hydrogen Energy power that disappears.
- 3. the hydrogen system that disappears as claimed in claim 1 is characterized in that: the hydrogen recombiner of described active hydrogen recombiner subsystem comprises a blower fan that is used for sucking from containment air containing hydrogen gas, a heatable catalytic reactor, a gas cooler.
- 4. the hydrogen system that disappears as claimed in claim 3, it is characterized in that: the air circulation duct of described active hydrogen recombiner subsystem is provided with several interfaces, hydrogen recombiners are overlapped in parallel connection more as required, and active hydrogen recombiner subsystem both has been used for design basis accident also for major accident.
- 5. the hydrogen system that disappears as claimed in claim 1, it is characterized in that: the hydrogen recombiner of described active hydrogen recombiner subsystem is fixedly mounted on outside containment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205479860U CN202976862U (en) | 2012-10-24 | 2012-10-24 | Containment vessel inside-outside and active-passive combined dehydrogenation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205479860U CN202976862U (en) | 2012-10-24 | 2012-10-24 | Containment vessel inside-outside and active-passive combined dehydrogenation system |
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| CN202976862U true CN202976862U (en) | 2013-06-05 |
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| CN2012205479860U Expired - Fee Related CN202976862U (en) | 2012-10-24 | 2012-10-24 | Containment vessel inside-outside and active-passive combined dehydrogenation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945685A (en) * | 2012-10-24 | 2013-02-27 | 中国核电工程有限公司 | Outside-containment active and inside-containment passive combined hydrogen elimination system and method thereof |
| CN103971762A (en) * | 2014-05-05 | 2014-08-06 | 中广核（北京）仿真技术有限公司 | Containment vessel for nuclear power plant |
| CN105551535A (en) * | 2015-12-16 | 2016-05-04 | 中广核工程有限公司 | Hydrogen elimination system of nuclear power plant concrete containment |
| CN116722472A (en) * | 2023-05-11 | 2023-09-08 | 江苏阿诗特能源科技有限公司 | Hydrogen elimination method for electric cabinet and electric cabinet |
-
2012
- 2012-10-24 CN CN2012205479860U patent/CN202976862U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945685A (en) * | 2012-10-24 | 2013-02-27 | 中国核电工程有限公司 | Outside-containment active and inside-containment passive combined hydrogen elimination system and method thereof |
| CN102945685B (en) * | 2012-10-24 | 2016-05-04 | 中国核电工程有限公司 | A kind of containment outward and containment is interior, active and disappear hydrogen system and the method for non-active combination |
| CN103971762A (en) * | 2014-05-05 | 2014-08-06 | 中广核（北京）仿真技术有限公司 | Containment vessel for nuclear power plant |
| CN105551535A (en) * | 2015-12-16 | 2016-05-04 | 中广核工程有限公司 | Hydrogen elimination system of nuclear power plant concrete containment |
| CN105551535B (en) * | 2015-12-16 | 2018-12-04 | 中广核工程有限公司 | Nuclear power plant containment shell disappears hydrogen system |
| CN116722472A (en) * | 2023-05-11 | 2023-09-08 | 江苏阿诗特能源科技有限公司 | Hydrogen elimination method for electric cabinet and electric cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20201024 |