CN109346196A - Gaseous-waste holdup system in the fusant heap that a kind of active and passive cooling combines - Google Patents
Gaseous-waste holdup system in the fusant heap that a kind of active and passive cooling combines Download PDFInfo
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- CN109346196A CN109346196A CN201811343179.5A CN201811343179A CN109346196A CN 109346196 A CN109346196 A CN 109346196A CN 201811343179 A CN201811343179 A CN 201811343179A CN 109346196 A CN109346196 A CN 109346196A
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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
- G21C15/182—Emergency cooling arrangements; Removing shut-down heat comprising powered means, e.g. pumps
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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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- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention discloses gaseous-waste holdup system in a kind of fusant heap that active and passive cooling combines, solve the problems, such as that Three models are bad in the presence of flowing cooling performance in the prior art, can not cope with major accident fast development.The present invention includes the nuclear reactor insulating layer for being arranged and being formed with nuclear reactor pressure container bottom end a cooling duct around nuclear reactor pressure container bottom end, the external cooling pipe being connected to cooling duct, the active water filling cooling system being connected to external cooling pipe and passive high water tank system；The external cooling pipe is connected to by ducted cooling agent inlet with cooling duct；The ducted cooling agent inlet includes at least one of external cooling pipe Horizontal Exit, external cooling pipe outlet at bottom and external cooling pipe tilt outlet.The present invention can effectively realize that multi-angle is injected, and with strong points, cooling system is swift in response, and can cope with the situation of major accident fast development.
Description
Technical field
The present invention relates to nuclear power facility fields, and in particular in the fusant heap that the active and passive cooling of one kind combines
Gaseous-waste holdup system.
Background technique
By the development and treatment process of analysis nuclear leakage accident it can be found that reactor core fusant with radionuclide is stagnant
It stays in pressure vessel, it is ensured that the integrality of nuclear reactor safety barrier greatly alleviates nuclear reactor major accident
Further development and deterioration.
In order to which reactor core melt retention with radionuclide in pressure vessel, is needed a kind of cooling system, Ke Yi
Under the conditions of core melt down accident occurs for nuclear reactor, by the cooling nuclear reactor pressure container of external water flood, reactor core melting is realized
It is detained in the heap of object.
Cooling mainly has following three classes outside existing reactor pressure vessel:
1. one kind is to carry out natural circulation cooling based on density contrast using cooling outside passive reactor pressure vessel
Lower head of pressure vessel does not have forced circulation cooling system.
2. another kind of is to have cooling outside active and passive reactor pressure vessel concurrently, passive series is by height
Position water tank provides cooling water source, injects cooling pressure container lower head using gravity.Its active series is to be driven by pump, and is passed through
Forced circulation mode cooling pressure container lower head, without long-term natural circulation cooling system.
3. third class is also to have cooling outside active and passive reactor pressure vessel concurrently, passive series is logical
Cross natural circulation mode cooling pressure container lower head, in patent CN201410222132.9, active series be only used for
Passive series moisturizing floods liquid level with keep Natural Circulation, without forced circulation for cooling down, to promote cooling capacity.
Show existing three classes system by the inquiry above to domestic and foreign literature and patented technology, some may be implemented
Similar ability, but they do not have above-mentioned function entirely, cool and add temperature-sensitive ingredients are more of short duration；Also, three kinds in the prior art
The mode problem bad there is also flowing cooling performance, can not cope with the situation of major accident fast development.
Summary of the invention
The technical problems to be solved by the present invention are: in the prior art there is flowing cooling performance be bad, nothing in Three models
The problem of method reply major accident fast development is, and it is an object of the present invention to provide a kind of fusant that active and passive cooling combines
Gaseous-waste holdup system in heap can effectively realize that multi-angle is injected by the design of reasonable structure, and with strong points, cooling system is anti-
It can should cope with the situation of major accident fast development rapidly.
The present invention is achieved through the following technical solutions:
Gaseous-waste holdup system in the fusant heap that a kind of active and passive cooling combines, including hold around nuclear reactor pressure
The setting of device bottom end and the nuclear reactor insulating layer that a cooling duct is formed with nuclear reactor pressure container bottom end, lead to cooling
The external cooling pipe of road connection, the active water filling cooling system being connected to external cooling pipe are arranged in nuclear reactor pressure
The passive high water tank system that container head is connected to cooling duct；
The external cooling pipe is connected to by ducted cooling agent inlet with cooling duct；The ducted cooling agent
Inlet includes external cooling pipe Horizontal Exit in the nuclear reactor pressure container at fusant top position, is located at
In nuclear reactor pressure container the external cooling pipe outlet at bottom of fusant bottom position and be located at nuclear reactor pressure hold
At least one of external cooling pipe tilt outlet in device at fusant medium position.
The present invention uses the ducted cooling agent inlet of multi-angle arrangement, can carry out needle for amount of localized heat concentrated position
Property is arranged, it is cooling that the local location in lower head of pressure vessel outer surface forms targetedly jet stream.Since jet orifice is cooling
Agent temperature is low, flow velocity is fast and disturbance is big, therefore can significantly strengthen the external cooling Local cooling to lower head of pressure vessel
Ability is alleviated and threatens maximum hot focus effect to high energy level pile IVR system.
Also, the present invention uses ducted cooling agent inlet, injects compared to pool or spatial, and charge velocity is fast,
In the case where emergency conditions occur, can more quick cooled reactor lower head of pressure vessel, prevent refrigerant level also not
When flooding lower head of pressure vessel, lower head of pressure vessel occurs hot melt and wears failure.
Further, the nuclear reactor pressure container top is provided with containment；The top of the cooling duct is provided with
Top discharge mouth, the top discharge mouth are connected to the internal cavity of containment, are provided on the top discharge mouth in containment non-
Active ball-cock assembly is provided with containment at the upper position in the containment and embeds condenser, which embeds condenser
Lower section is provided with cooling water collecting pit, which is provided with the connecting pipe being connected to external cooling pipe,
The style one-way flow valve flowed towards external cooling pipe direction is provided on the connecting pipe；
The passive high water tank system is connected by external cooling pipe with cooling duct.
By the optimal setting of above structure, cooling active water filling, passive water filling cooling and long-term nature may be implemented
Circulating cooling Three models are simultaneously deposited.Three models and under conditions of depositing, under the conditions of active water filling cooling system is effective, due to
The coolant driving pressure highest of active water filling cooling system, so lower head of pressure vessel is external cooling by active water filling
Cooling system is realized, and due to the presence of style one-way flow valve and electric check valve, the coolant of active injection will not directly flow
Lose the high water tank of passive high water tank system and the cooling water collecting pit of passive natural circulation water filling cooling system.
Under conditions of the failure of active water filling cooling system, since the coolant driving pressure of high water tank is higher than cooling water collecting pit
, therefore, the external cooling of lower head of pressure vessel is realized by passive high water tank system.Moreover, because style one-way flow valve
Close the presence of electric check valve with power-off, the coolant of passive high water tank injection will not directly be lost to it is passive from
So cooling water collecting pit and active water filling cooling system of circulation water filling cooling system.When the failure of active water filling cooling system, and
At the end of the coolant injection of passive high water tank system, due to difference in height, the interior coolant meeting collected of cooling water collecting pit
Cooling pressure container lower head is injected by pipeline, and forms long-term natural circulation cooling.
Meanwhile long-term natural circulation cooling effect may be implemented in the present invention: the water and steam in cooling duct passes through cold
But channel roof discharge outlet enters containment.Water flows to cooling water collecting pit.Vapor embeds condenser condensation by containment
Afterwards, cooling water collecting pit is flowed back into.Water in cooling water collecting pit, which injects under cooling pressure container by gravity through pipeline, to be sealed
Head forms circulation.The long-term cooling that lower head of pressure vessel outside wall surface or cylinder can be realized, makes fusant be stranded in pressure
In force container lower head, the integrality of pressure vessel is kept.
In active injection, passive injection and long-term Natural Circulation Three models and under conditions of deposit, three modes can be with
Automatically switch, the degree of reliability is higher, it can be achieved that passive security, the time without manual intervention is longer, is resistant to longer recovery factory
The time of area's power supply, adaptability are wider.
Further, the passive high water tank system includes high water tank, is connected to external cooling pipe and high water tank
High water tank water injection pipe, the electric check valve on high water tank water injection pipe is set.
Further, the passive high water tank system is arranged in containment, the high water tank water injection pipe one end with
The bottom end of high water tank is connected to, and the other end is connected to external cooling pipe.
Further, the three-dimensional filter structure of classification is provided in the cooling water collecting pit, i.e. filter structure is three-dimensional mistake
Structure is filtered, coarse filtration net is set on the upper layer of filter structure, cylinders of filter mesh is arranged in lower layer, realizes the three-dimensional filtering of classification.In this way
Area of filter net is bigger, more difficult blocking, can tolerate more harsh conditions.
Further, opening of the external cooling pipe tilt outlet on external cooling pipe is circular tube open, in core
Opening on reactor insulating layer is annular opening, and smooth transition structure, external cooling pipe inclination are used between two openings
The cross-sectional flow area of outlet is 0.5~2.5 times of the cross-sectional flow area of external cooling pipe outlet at bottom.
Further, opening of the external cooling pipe Horizontal Exit on external cooling pipe is circular tube open,
Opening on nuclear reactor insulating layer is annular opening, and smooth transition structure, external cooling pipe water are used between two openings
The cross-sectional flow area of mouth of clearing is 0.5~2.5 times of cross-sectional flow area of external cooling pipe outlet at bottom.
Further, the active water filling cooling system includes the active water injection pipe being connected to external cooling pipe, and setting exists
Active water injecting pump and power-off on active water injection pipe close electric check valve, and are connected on active water injection pipe for being connected to
The active intake pipe of external water source.
Compared with prior art, the present invention having the following advantages and benefits:
1, the present invention can carry out specific aim arrangement for amount of localized heat concentrated position using the cooling vent of multi-angle arrangement,
It is cooling that local location in lower head of pressure vessel outer surface forms targetedly jet stream；External cooling pair can significantly be strengthened
The Cooling Ability of Partial of lower head of pressure vessel is alleviated and threatens maximum hot focus effect to high energy level pile IVR system；
2, the present invention uses ducted cooling agent inlet, injects compared to pool or spatial, charge velocity is fast, is sending out
Make trouble thus under the conditions of, can more quick cooled reactor lower head of pressure vessel, prevent from not flooding also in refrigerant level
When lower head of pressure vessel, lower head of pressure vessel occurs hot melt and wears failure；
3, the present invention may be implemented that active water filling is cooling, passive high water tank injection is cooling and long-term passive follow naturally
The cooling Three models of ring are simultaneously deposited, Three models and under conditions of depositing, and the degree of reliability is higher, it can be achieved that passive security, without artificial
The time of intervention is longer, is resistant to the longer time for restoring plant area's power supply；
4, the present invention can apply operating pressure be normal pressure~1MPa, operating temperature be room temperature~200 DEG C aqueous medium,
Under steam medium and steam water two-phase medium working condition, long-term natural circulation cooling effect is realized.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention.
Label and corresponding parts title in attached drawing:
1- fusant；2- nuclear reactor pressure container；3- nuclear reactor insulating layer；Cooling pipe outside 4-；It is cold outside 5-
But pipe level exports；Cooling pipe outlet at bottom outside 6-；Cooling pipe tilt outlet outside 7-；8- connecting pipe；9- is mono-
To flow valve；10- cooling water collecting pit；11- filter structure；The passive ball-cock assembly of 12-；13- high water tank water injection pipe；14- electricity
Dynamic shut-off valve；15- high water tank；16- containment embeds condenser；17- containment；The active water injection pipe of 18-；The active water filling of 19-
Pump；Electric check valve is closed in 20- power-off；The active intake pipe of 21-.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
Gaseous-waste holdup system in the fusant heap that a kind of active and passive cooling combines, as shown in Figure 1, including anti-by core
The cooling duct for answering heap insulating layer 3 to constitute after nuclear reactor pressure container 2, the active note being connected to external cooling pipe 4
The passive high water tank system that 2 top of nuclear reactor pressure container is connected to cooling duct is arranged in water cooling system.
Wherein, external cooling pipe 4 is connected to by ducted cooling agent inlet with cooling duct；The ducted cooling
Agent inlet includes that external cooling pipe Horizontal Exit 5, external cooling pipe outlet at bottom 6 and external cooling pipe tilt
At least one of mouth 7.
That is, three kinds of export structures can exist simultaneously in the present embodiment, one or two can also be only existed, but are at least needed
There is a kind of presence.Consider structure in the nuclear fuel and heap of practical nuclear reactor pressure container geometry and nuclear reactor
Part material composition, reactor core may form a variety of molten bath structures in lower head, and different molten bath structures may cause different lower envelopes
Head heat distribution.The concrete composition of setting ducted cooling agent inlet is distributed according to heat.
Such as: according to existing the case where building labour power plant in, under the conditions of most, biography of the molten bath to lower head of pressure vessel
Heat will lead to heat in 70~90 ° of interval ranges of lower head of pressure vessel and be in local peaking.Therefore, in this case, originally
Recommend the combination settings of the external cooling pipe outlet at bottom 6 of progress and external cooling pipe tilt outlet 7 in embodiment.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, gaseous-waste holdup system in fusant heap of the present invention is optimized in the present embodiment
Specific structure, realize that active water filling is cooling, passive water filling is cooling and long-term natural circulation cooling Three models and deposit
Mode is specifically provided that
Gaseous-waste holdup system in the fusant heap that a kind of active and passive cooling combines, as shown in Figure 1, including nuclear reactor
Pressure vessel 2, nuclear reactor insulating layer 3, external cooling pipe 4, connecting pipe 8, style one-way flow valve 9, cooling water collecting pit
10, filter structure 11, passive ball-cock assembly 12, high water tank water injection pipe 13, electric check valve 14, high water tank 15, containment
Embedded condenser 16, containment 17, ducted cooling agent inlet, passive high water tank system and active water filling cooling system
System.
Nuclear facilities occur emergency conditions under, start active water filling cooling system first, this active water filling cooling system from
Built-in material-changing water tank or fire water water intaking are injected into external cooling pipe.Via ducted cooling agent inlet, it is anti-to inject core
The cooling duct for answering heap insulating layer and nuclear reactor pressure container to constitute, since the drive ram of active water filling cooling system is deposited
Passive ball-cock assembly can be being opened, containment is being discharged to via cooling duct top discharge mouth, constant flow is formed, to core
Reactor pressure vessel lower head outer surface carries out external cooling.
In the case where emergency conditions occur for nuclear facilities, start active water filling cooling system first, if losing power supply can not start
Under conditions of active water filling cooling system, then start passive high water tank system.Under conditions of losing power supply, high-order water
The valve of case system can automatically open.Since there are differences in height between high water tank system and external cooling pipe, make in gravity
It can be injected via the electric check valve of high water tank water injection pipe, full-gear with the water in lower high water tank system external cooling
Pipeline.Via ducted cooling agent inlet, it is logical to inject the cooling that nuclear reactor insulating layer and nuclear reactor pressure container are constituted
Road, the drive ram as caused by difference in height exist, and passive ball-cock assembly can be opened, via cooling duct top discharge mouth
It is discharged to containment, forms constant flow, nuclear reactor pressure container lower head outer surface is carried out external cooling.
In the case where emergency conditions occur for nuclear facilities, under conditions of losing power supply, start passive high water tank system first,
In passive high water tank system operation, water in passive high water tank system under nuclear reactor pressure container to sealing
After head outer surface carries out external cooling, generated water and steam passes through cooling duct top discharge mouth, i.e. top discharge mouth
Containment is discharged at position.The water vapour of discharge can be embedded condenser condensation by containment, and condensed water can fall on safety again
Shell ground.Condensed water and from cooling duct top discharge mouth be discharged water converge after, flow into cooling water collecting pit, from cooling water
It collects bottom of pond portion and is connected by connecting pipe, style one-way flow valve with external cooling pipe.
Therefore, at the end of the coolant injection of passive high water tank system, the cooling of passive high water tank system
Agent driving pressure can be lower than cooling water collecting pit by the coolant driving pressure highly formed, nuclear reactor pressure container at this time
Cooling duct, cooling water collecting pit, connecting pipe between nuclear reactor insulating layer etc. have been filled with water.At this point, cooling
Water collects bottom of pond portion from cooling water and flows into external cooling pipe by connecting pipe, style one-way flow valve, via ducted cooling agent
Inlet is injected the cooling duct that nuclear reactor insulating layer and nuclear reactor pressure container are constituted, is floated as caused by density contrast
Power exists, and passive ball-cock assembly can be made to open, and the water and steam in cooling duct passes through cooling duct top discharge mouth
It is discharged to containment, the water vapour of discharge can be embedded condenser condensation by containment, and condensed water can with falling on containment again
Face.Condensed water and from cooling duct top discharge mouth be discharged water converge after, after being filtered via filter, flow into cooling water receive
Ji Chi, the water in cooling water collecting pit inject external cooling pipe by gravity, form long-term Natural Circulation.Realize that pressure is held
The long-term cooling of device lower head outside wall surface and cylinder, is stranded in fusant in lower head of pressure vessel, keeps pressure vessel
Integrality.
By the combination settings of above structure, can effectively realize that active water filling is cooling, passive water filling is cooling and it is long-term oneself
Right circulating cooling Three models and the mode deposited.Since coolant drive ram is different, can be realized between three subsystems automatic
Switching.
Specific switching mode is as follows between three subsystems, cooling in active water filling in the case where emergency conditions occur for nuclear facilities
Under the conditions of system is effective, start active water filling cooling system first, since the coolant of active water filling cooling system drives pressure
Power highest, so lower head of pressure vessel is external cooling by the realization of active water filling cooling system, and due to style one-way flow valve
With the presence of electric check valve, the coolant of active injection will not directly be lost to passive high water tank water filling cooling system
High water tank and passive natural circulation water filling cooling system cooling water collecting pit.
Under conditions of the failure of active water filling cooling system, i.e., under conditions of losing power supply, electric check valve can be automatic
It opens.Since the coolant driving pressure of high water tank is higher than cooling water collecting pit, outside lower head of pressure vessel
Portion is cooling to be realized by passive high water tank water filling cooling system.Moreover, because the presence of style one-way flow valve, a passive high position
The coolant of water tank injection will not directly be lost to the cooling water collecting pit of passive natural circulation water filling cooling system.Due to
Electric check valve is closed in power-off will not directly be lost in power-off closed state, the coolant of passive high water tank injection
To active water filling cooling system.
When the coolant injection of the failure of active water filling cooling system, and passive high water tank water filling cooling system terminates
When, due to difference in height, the coolant collected in cooling water collecting pit can inject cooling pressure container lower head by pipeline, and
Form long-term natural circulation cooling.Likewise, closing electric check valve due to power-off can follow naturally in power-off closed state
The cooling coolant of ring will not directly be lost to active water filling cooling system.
Embodiment 3
The present embodiment the difference from embodiment 1 is that, passive high water tank system and energy are optimized in the present embodiment
The structure of dynamic water filling cooling system, is specifically provided that
Wherein, passive high water tank system includes high water tank 15, is connected to external cooling pipe 4 and high water tank 15
The electric check valve 14 on high water tank water injection pipe 13 is arranged in high water tank water injection pipe 13；
Above-mentioned passive high water tank system is arranged in containment 17,13 one end of high water tank water injection pipe and a high position
The bottom end of water tank 15 is connected to, and the other end is connected to external cooling pipe 4.
Wherein, active water filling cooling system includes the active water injection pipe 18 being connected to external cooling pipe 4, is arranged active
Active water injecting pump 19 and power-off on water injection pipe 18 close electric check valve 20, and are connected on active water injection pipe 18 and are used for
It is connected to the active intake pipe 21 of external water source.
The course of work of active water filling cooling system in the present embodiment are as follows: in the case where emergency conditions occur for nuclear facilities, break at this time
It is electrically turn off electric check valve to be shown in a fully open operation, be fetched water by active intake pipe from built-in material-changing water tank or fire water, active note
Water pump provides drive ram, injects external cooling pipe by active water injection pipe.Via ducted cooling agent inlet, injection
The cooling duct that nuclear reactor insulating layer and nuclear reactor pressure container are constituted can open non-energy since drive ram exists
Dynamic ball-cock assembly is discharged to containment via cooling duct top discharge mouth, constant flow is formed, to nuclear reactor pressure container
Lower head outer surface carries out external cooling.
In the present embodiment, under conditions of losing power supply, the course of work of passive high water tank system are as follows: electronic cut-off
Valve automatically opens, since there are differences in height between high water tank and external cooling pipe, under the effect of gravity in high water tank
Water can inject external cooling pipe via the electric check valve of high water tank water injection pipe, full-gear.Via ducted cooling agent
Inlet is injected the cooling duct that nuclear reactor insulating layer and nuclear reactor pressure container are constituted, is driven as caused by difference in height
Dynamic head exists, and can open passive ball-cock assembly, is discharged to containment via cooling duct top discharge mouth, is formed and continued
Flowing carries out nuclear reactor pressure container lower head outer surface external cooling.
Embodiment 4
The present embodiment and the difference of embodiment 1 or 2 or 3 are, ducted cooling agent inlet is optimized in the present embodiment
The specific structure of middle external cooling pipe tilt outlet 7 and external cooling pipe Horizontal Exit 5, is provided that
Opening of the external cooling pipe tilt outlet 7 on external cooling pipe 4 is circular tube open, in nuclear reactor
Opening on insulating layer 3 is annular opening, and smooth transition structure, external cooling pipe tilt outlet 7 are used between two openings
Cross-sectional flow area be 0.5~2.5 times of cross-sectional flow area of external cooling pipe outlet at bottom 6.
Opening of the external cooling pipe Horizontal Exit 5 on external cooling pipe 4 is circular tube open, in nuclear reactor
Opening on insulating layer 3 is annular opening, and smooth transition structure, external cooling pipe Horizontal Exit 5 are used between two openings
Cross-sectional flow area be 0.5~2.5 times of cross-sectional flow area of external cooling pipe outlet at bottom 6.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not used to limit this hair the foregoing is merely a specific embodiment of the invention
Bright protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all
It is included within protection scope of the present invention.
Claims (8)
1. gaseous-waste holdup system in a kind of fusant heap that active and passive cooling combines, including surround nuclear reactor pressure container
(2) bottom end setting and the nuclear reactor insulating layer (3) with nuclear reactor pressure container (2) bottom end one cooling duct of formation, with
The external cooling pipe (4) of cooling duct connection, the active water filling cooling system being connected to external cooling pipe (4), setting exist
The passive high water tank system that nuclear reactor pressure container (2) top is connected to cooling duct；It is characterized in that,
The external cooling pipe (4) is connected to by ducted cooling agent inlet with cooling duct；The ducted cooling agent
Inlet includes the external cooling pipe Horizontal Exit at fusant (1) top position in nuclear reactor pressure container (2)
(5), it is located at the external cooling pipe outlet at bottom (6) of fusant (1) bottom position and position in nuclear reactor pressure container (2)
At least one in external cooling pipe tilt outlet (7) in nuclear reactor pressure container (2) at fusant (1) medium position
Kind.
2. gaseous-waste holdup system in the fusant heap that the active and passive cooling of one kind according to claim 1 combines, special
Sign is that nuclear reactor pressure container (2) top is provided with containment (17)；The top of the cooling duct is provided with top
Portion's discharge outlet, the top discharge mouth are connected to the internal cavity of containment (17), are set on the top discharge mouth in containment (17)
It is equipped with passive ball-cock assembly (12), containment is provided at the upper position in the containment (17) and embeds condenser (16),
The containment embeds and is provided with cooling water collecting pit (10) below condenser (16), which is provided with
The connecting pipe (8) being connected to external cooling pipe (4) is provided on the connecting pipe (8) towards external cooling pipe (4) side
To the style one-way flow valve (9) of flowing；
The passive high water tank system is connected by external cooling pipe (4) with cooling duct.
3. gaseous-waste holdup system in the fusant heap that the active and passive cooling of one kind according to claim 2 combines, special
Sign is that the passive high water tank system includes high water tank (15), is connected to external cooling pipe (4) and high water tank
(15) high water tank water injection pipe (13), the electric check valve (14) being arranged on high water tank water injection pipe (13).
4. gaseous-waste holdup system in the fusant heap that the active and passive cooling of one kind according to claim 3 combines, special
Sign is, the passive high water tank system is arranged in containment (17), high water tank water injection pipe (13) one end with
The bottom end of high water tank (15) is connected to, and the other end is connected to external cooling pipe (4).
5. gaseous-waste holdup system in the fusant heap that the active and passive cooling of one kind according to claim 2 combines, special
Sign is, is provided with filter structure (11) in the cooling water collecting pit (10).
6. gaseous-waste holdup system in the fusant heap that the active and passive cooling of one kind according to claim 1 combines, special
Sign is that opening of the external cooling pipe tilt outlet (7) on external cooling pipe (4) is circular tube open, anti-in core
Answering the opening on heap insulating layer (3) is annular opening, and smooth transition structure, external cooling pipe inclination are used between two openings
The cross-sectional flow area of outlet (7) is 0.5~2.5 times of the cross-sectional flow area of external cooling pipe outlet at bottom (6).
7. gaseous-waste holdup system in the fusant heap that the active and passive cooling of one kind according to claim 1 combines, special
Sign is that opening of the external cooling pipe Horizontal Exit (5) on external cooling pipe (4) is circular tube open, anti-in core
Answering the opening on heap insulating layer (3) is annular opening, and smooth transition structure is used between two openings, and external cooling pipe is horizontal
The cross-sectional flow area of outlet (5) is 0.5~2.5 times of the cross-sectional flow area of external cooling pipe outlet at bottom (6).
8. gaseous-waste holdup system in the fusant heap that the active and passive cooling of one kind according to claim 1 combines, special
Sign is that the active water filling cooling system includes the active water injection pipe (18) being connected to external cooling pipe (4), is arranged in energy
Active water injecting pump (19) and power-off on dynamic water injection pipe (18) close electric check valve (20), and are connected to active water injection pipe
(18) for being connected to the active intake pipe (21) of external water source on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343179.5A CN109346196B (en) | 2018-11-13 | 2018-11-13 | Active and passive cooling combined molten material in-pile retention system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343179.5A CN109346196B (en) | 2018-11-13 | 2018-11-13 | Active and passive cooling combined molten material in-pile retention system |
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| CN109346196A true CN109346196A (en) | 2019-02-15 |
| CN109346196B CN109346196B (en) | 2022-04-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883269A (en) * | 2020-08-12 | 2020-11-03 | 中国核动力研究设计院 | System and method for cooling stagnant passive in molten material reactor of floating nuclear power station |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883269A (en) * | 2020-08-12 | 2020-11-03 | 中国核动力研究设计院 | System and method for cooling stagnant passive in molten material reactor of floating nuclear power station |
| CN111899901A (en) * | 2020-08-12 | 2020-11-06 | 中国核动力研究设计院 | Passive and active combined molten material in-pile retention cooling system |
| CN111883269B (en) * | 2020-08-12 | 2022-04-22 | 中国核动力研究设计院 | System and method for cooling stagnant passive in molten material reactor of floating nuclear power station |
| CN111899902A (en) * | 2020-09-08 | 2020-11-06 | 中国科学院合肥物质科学研究院 | Pool type reactor waste heat discharge system controlled by floating ball valve |
| CN114038589A (en) * | 2021-11-10 | 2022-02-11 | 中国核动力研究设计院 | Full-passive reactor cavity water injection cooling system and method |
| CN114038589B (en) * | 2021-11-10 | 2024-02-13 | 中国核动力研究设计院 | Full passive reactor cavity water injection cooling system and method |
| CN116130123A (en) * | 2022-11-22 | 2023-05-16 | 上海核工程研究设计院股份有限公司 | Passive reactor cavity water injection cooling system and method |
| CN116130123B (en) * | 2022-11-22 | 2024-01-12 | 上海核工程研究设计院股份有限公司 | Passive reactor cavity water injection cooling system and method |
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