CN104279360A - Magnetic induction explosion valve system based on external intervention design - Google Patents
Magnetic induction explosion valve system based on external intervention design Download PDFInfo
- Publication number
- CN104279360A CN104279360A CN201410384981.4A CN201410384981A CN104279360A CN 104279360 A CN104279360 A CN 104279360A CN 201410384981 A CN201410384981 A CN 201410384981A CN 104279360 A CN104279360 A CN 104279360A
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- China
- Prior art keywords
- magnetic induction
- coil
- explosive valve
- explosive
- detonator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
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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)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention belongs to the technical field of nuclear power and particularly relates to a magnetic induction explosion valve system based on an external intervention design. A magnetic induction detonator is arranged in an explosion valve detonation assembly; a coil is wound inside or outside a safety housing; the coil is connected with an external power connector. When an explosion valve loses all power supplies under an accident condition, an induced electromagnetic field is generated in the safety housing since the external power connector is connected with the coiler and an external power supply, the magnetic induction detonator is motivated to generate a detonation current, and the explosion valve is opened by explosion of the magnetic induction detonator. The magnetic induction explosion valve system disclosed by the invention provides a spare opening measure for the explosion valve, and further the safety of a nuclear power station under the accident condition is further improved.
Description
Technical field
The invention belongs to technical field of nuclear power, be specifically related to a kind of magnetic induction explosive valve system designed based on " foreign intervention ".
Background technique
Explosive valve is used widely in nuclear power plant's passive safety system, it is advantageous that, zero leakage under nuclear power plant's accidental conditions, can more reliably open compared to conventional valves under accident conditions, and there will not be and cannot close, and the use of explosive valve can also reduce the irradiation dose of device maintenance and relevant staff.
The most typical application of explosive valve is in AP1000 security system design, the pipeline of its non-active core cooling system (PXS) is furnished with explosive valve, and predominant use comprises: a. forms Automatic depressurize system (ADS) fourth stage automatic pressure-relieving subtense angle; B. the water of the built-in material-changing water tank of containment by gravity by two-way explosive valve in parallel and safety check to reactor core water filling; C. recirculation water leads up to explosive valve and safety check, separately leads up to explosive valve and Chang Kai direct current drive valve realize containment recirculation thus realize the long-term cooling to reactor core.
The working principle of explosive valve as shown in Figure 1, receive signal and produce blast by the assembly 1 that detonates, and the expanding gas promotion piston 2 that blast produces moves downward to be broken pretension bolt 3 thin segment, and piston backs down adapter downwards and shears cap 4, opens valve.The signal power source of valve and driving power are from 1E level direct current and uninterruptible power system (IDS).
Can containment release and long-term cooling finally set up usability under the reliability and accident condition depending on explosive valve, and the reliability that this type of relates to electric equipment under nuclear power plant's environment is difficult to ensure, and under beyond design basis accident, these equipment realizing Core cooling function cannot effectively may be opened due to common mode failure.For DC electrical source, be that water logging or fire all will make explosive valve successfully open.Due to key for Core cooling of explosive valve, need the improvement carrying out based on " foreign intervention " to it.
" foreign intervention " refers to and the various resources outside nuclear power plant's manpower and materials can be utilized to intervene nuclear power plant thus alleviate the ability of damage sequence.Design of nuclear power plant based on " foreign intervention " thought is exactly the contact channel just will setting up nuclear power plant and external resource more fully at the beginning of nuclear power station design in advance, is realized more effective " foreign intervention " by these channels when accident occurs.
Summary of the invention
The object of the invention is to for problems of the prior art, a kind of magnetic induction explosive valve system designed based on " foreign intervention " is provided, under the prerequisite keeping the original design of explosive valve, improve the reliability of explosive valve under accident conditions further.
Technological scheme of the present invention is as follows: a kind of magnetic induction explosive valve system designed based on " foreign intervention ", arranges magnetic induction detonator in explosive valve detonates assembly, and put coil in containment inside or external rings winding, described coil is connected with external power supply joint; Under accident conditions during explosive valve loss of all power, make to produce induced electromagnetic field in containment by external power supply joint connecting wire circle and external power supply, excite in magnetic induction detonator and produce initiation current, open explosive valve by magnetic induction blasting cap detonation.
Further, the magnetic induction explosive valve system designed based on " foreign intervention " as above, wherein, described magnetic induction detonator overall package is in package cover, the inductance coil being placed in insulating resin is provided with in package cover, inductance coil contact resistance silk, described resistance wire is wrapped up by priming explosive, and primer is loaded in priming explosive side.
Further, as above based on the magnetic induction explosive valve system that " foreign intervention " designs, wherein, protecting jacket is set at described coil outer.
Further, as above based on the magnetic induction explosive valve system that " foreign intervention " designs, wherein, described external power supply joint incoming transport electricity.
Beneficial effect of the present invention is as follows: the present invention is based on " foreign intervention " design concept, consider that key that explosive valve success is opened is the reliability of explosive valve flip flop equipment, the simplest electromagnetic induction principle is utilized to realize the control of opening it, its advantage is two aspects: first, and inductor coil can be arranged in safe place as sender unit; Secondly, electromagnetic induction belongs to nature physical phenomenon and has natural reliability as gravity, natural circulation.The present invention is that explosive valve provides and for subsequent use opens means, further increases the Security of nuclear power station under accident conditions.
Accompanying drawing explanation
Fig. 1 is the working principle schematic diagram of AP1000 explosive valve;
Fig. 2 is the layout schematic diagram that the present invention has the magnetic induction explosive valve system of " foreign intervention " ability;
Fig. 3 is the structural representation of magnetic induction detonator of the present invention;
Fig. 4 is the layout schematic diagram of containment coil of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
The present invention is based on electromagnetic induction principle, whole system is made up of magnetic induction detonator 5 and coil 6, as shown in Figure 2, magnetic induction detonator 5 is installed together as the explosive valve original electric wire priming device in a part in assembly and this assembly that detonates, containment inside or exterior circumferential wound coil 6, coil 6 is connected with external power supply joint 7.Under beyond design basis accident, by the wire of DC power supply detonate assembly cannot start time, by external power supply joint incoming transport electricity, in magnetic induction detonator, produce enough large induced current trigger magnetic induction detonator and then open explosive valve.
Magnetic induction detonator is the combination of inductance coil and traditional electrical detonator, concrete structure as shown in Figure 3, inductance coil 52 contact resistance silk 54, inductance coil 52 is encapsulated in insulating resin 53, resistance wire 54 is wrapped up by priming explosive 55, priming explosive is ASA composite, for loading the primer 56 of TNT under priming explosive 55, whole detonator is encapsulated in solid package cover 51 and is isolated with containment environment, this mode can ensure the reliability of inductance coil, and water logging can not damage it, improve its reliabilty and availability.According to the explosive valve progression used in design, the initiation current of magnetic induction detonator set in every one-level solenoid valve and the intensity of the voltage that detonates can be determined, the intensity of the Induced magnetic field arranged residing for this magnetic induction detonator blasting valve needed for spatial position can be calculated according to this initiation current and the intensity of voltage of detonating, can calculate around the electric current [strength needed for the number of windings of containment coil and ABAP Adapter according to the Induced magnetic field intensity of this spatial position.In the present embodiment, the recommended value of the voltage and current that detonates is respectively 1.2 volts and 15 milliamperes.
The effect arranging coil around containment manufactures induced electromagnetic field at factory building; as shown in Figure 4; the formation of coil 6 is that wire coil is around containment; reactor 8 is arranged in containment; the number of windings of coil should reach the Induced magnetic field that can produce initiation current in magnetic induction detonator, in the present embodiment, is 135 ' 3 at the rational height of factory building "; coil outer arranges safety cover, simultaneously reserved ABAP Adapter joint.Under beyond design basis accident, by ABAP Adapter joint incoming transport electricity, generate an electromagnetic field in containment.
When serious accident situation lower valve loss of all power (comprising DC electrical source), by external power supply interface, coil is connected ABAP Adapter, open explosive valve by the electromagnetic induction magnetic induction detonator that detonates.
By changing input current intensity, required many groups explosive valve can be opened successively.Magnetic induction coil can be encapsulated in outside in containment, does not affect the structural strength of containment.And, because magnetic induction detonator requires higher initiation current, so the electromagnetic interference in nuclear island is not enough to trigger magnetic induction detonator, then avoid the false triggering of explosive valve.
It should be noted that the original direct current flip flop equipment of explosive valve should give reservation, the design of coil is only to provide the means of a foreign intervention, it is advantageous that the complete enclosed package of flip flop equipment will improve the impact that it resists all kinds of accident and corrosion and ageing greatly.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technology thereof to these amendments of the present invention and modification, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. the magnetic induction explosive valve system designed based on " foreign intervention ", it is characterized in that: magnetic induction detonator (5) is set in explosive valve detonates assembly, put coil (6) in containment inside or external rings winding, described coil (6) is connected with external power supply joint (7); Under accident conditions during explosive valve loss of all power, make to produce induced electromagnetic field in containment by external power supply joint (7) connecting coil (6) and external power supply, excite in magnetic induction detonator (5) and produce initiation current, open explosive valve by magnetic induction blasting cap detonation.
2. the magnetic induction explosive valve system designed based on " foreign intervention " as claimed in claim 1, it is characterized in that: described magnetic induction detonator overall package is in package cover (51), the inductance coil (52) being placed in insulating resin (53) is provided with in package cover (51), inductance coil (52) contact resistance silk (54), described resistance wire (54) is wrapped up by priming explosive (55), and primer (56) is loaded in priming explosive (55) side.
3. the magnetic induction explosive valve system designed based on " foreign intervention " as claimed in claim 1, is characterized in that: at described coil (6) outer installment protecting jacket.
4. the magnetic induction explosive valve system designed based on " foreign intervention " as claimed in claim 1, is characterized in that: described external power supply joint (7) incoming transport electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384981.4A CN104279360B (en) | 2014-08-06 | 2014-08-06 | A kind of magnetic induction explosion valve system designed based on foreign intervention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384981.4A CN104279360B (en) | 2014-08-06 | 2014-08-06 | A kind of magnetic induction explosion valve system designed based on foreign intervention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104279360A true CN104279360A (en) | 2015-01-14 |
| CN104279360B CN104279360B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410384981.4A Active CN104279360B (en) | 2014-08-06 | 2014-08-06 | A kind of magnetic induction explosion valve system designed based on foreign intervention |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328324A (en) * | 2017-07-13 | 2017-11-07 | 中广核工程有限公司 | Nuclear power explosion valve control system and nuclear power explosion valve system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054897U (en) * | 1989-07-07 | 1990-03-21 | 郭绍华 | High frequency electromagnetic detonator and percussion lock |
| CN2150209Y (en) * | 1992-12-07 | 1993-12-22 | 淄博矿务局五二五厂 | Anti-radiofrequency electric detonator |
| WO1996017194A1 (en) * | 1994-11-29 | 1996-06-06 | The University Of Southern Queensland | Floating plate gas valve |
| US20030110970A1 (en) * | 2001-12-13 | 2003-06-19 | Arie Sansolo | Actuator apparatus |
| CN2736734Y (en) * | 2004-06-08 | 2005-10-26 | 张连山 | Copper-bridged electric detonator |
| CN203720903U (en) * | 2014-03-04 | 2014-07-16 | 李孝杰 | Safe electric detonator with electronic lock |
-
2014
- 2014-08-06 CN CN201410384981.4A patent/CN104279360B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054897U (en) * | 1989-07-07 | 1990-03-21 | 郭绍华 | High frequency electromagnetic detonator and percussion lock |
| CN2150209Y (en) * | 1992-12-07 | 1993-12-22 | 淄博矿务局五二五厂 | Anti-radiofrequency electric detonator |
| WO1996017194A1 (en) * | 1994-11-29 | 1996-06-06 | The University Of Southern Queensland | Floating plate gas valve |
| US20030110970A1 (en) * | 2001-12-13 | 2003-06-19 | Arie Sansolo | Actuator apparatus |
| CN2736734Y (en) * | 2004-06-08 | 2005-10-26 | 张连山 | Copper-bridged electric detonator |
| CN203720903U (en) * | 2014-03-04 | 2014-07-16 | 李孝杰 | Safe electric detonator with electronic lock |
Non-Patent Citations (1)
| Title |
|---|
| 沈立晋等: "工程爆破安全起爆系统", 《工程爆破》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328324A (en) * | 2017-07-13 | 2017-11-07 | 中广核工程有限公司 | Nuclear power explosion valve control system and nuclear power explosion valve system |
Also Published As
| Publication number | Publication date |
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| CN104279360B (en) | 2017-07-28 |
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