CN209216589U - A kind of swimming pool formula region low temperature heating reactor - Google Patents
A kind of swimming pool formula region low temperature heating reactor Download PDFInfo
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- CN209216589U CN209216589U CN201821859147.6U CN201821859147U CN209216589U CN 209216589 U CN209216589 U CN 209216589U CN 201821859147 U CN201821859147 U CN 201821859147U CN 209216589 U CN209216589 U CN 209216589U
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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 nuclear reactor art field, and in particular to a kind of swimming pool formula region low temperature heating reactor, the reactor core including heap basin bottom is arranged in, depth of water is 20-30 meters in heap pond；Upper hanging basket, middle hanging basket, lower hanging basket and the reactor core pedestal from top to bottom set gradually in heap pond；It is equipped with the driving line of control rod drive mechanism in upper hanging basket, control rod guide tubes and bundles are equipped in middle hanging basket, reactor core is arranged in lower hanging basket, and the top for being fixed on the reactor core pedestal of heap tank floor is arranged in lower hanging basket, and reactor is using control rod beam control system reactivity；It further include the primary Ioops being connected to lower hanging basket, the water after the heating of heap in-core is sent to through primary Ioops to be exchanged heat and be back to except heap pond in heap pond.The utility model has the advantages that inherent safety rank height, high reliablity, economical and practical.
Description
Technical field
The utility model belongs to nuclear reactor art field, and in particular to a kind of swimming pool formula region low temperature heating reactor.
Background technique
Nuclear heating be it is a kind of by nuclear fission generate energy as heat source to surrounding cities central heating in the way of, with tradition
This can substantially reduce disposal of pollutants to heat source phase, and heat supply is safe and reliable, will be effectively improved China's energy resource structure, alleviates increasingly tight
The energy supply anxiety situation of weight has protection environment, protection people's health and the coal-fired pressure of alleviation etc. positive
Meaning.
Currently, the main application mode of nuclear heating is two kinds, one is pressure shell-type, the presurized water reactor of structure and high temperature and pressure
Similar, another is swimming pool formula, and two types are respectively in national capitals such as the Soviet Union/Russia, Germany, A Guo, Switzerland and Canada
There is research and development.For swimming pool formula relative pressure shell-type, the large-scale and complicated devices such as pressure vessel, containment are saved, are had
The advantages that inherent safety is good, high reliablity, simple and stable system is also more suitable for city neighborhood construction.But, it removes
The Soviet Union/Russia is outer, and in the world there are no the precedents of particularly successful nuclear heating reactor commercial operation.In China,
Tsinghua University has used existing swimming pool formula shield test reactor and carries out core for heat test, and China Atomic Energy Science Research Institute utilizes
Its 49-2 swims pool type reactor continuous heat supply 168 hours, it was demonstrated that the technical feasibility of swimming pool type reactor heat supply.
But in existing swimming pool type heating reactor technology, first is that depth of water is inadequate, leaving water temperature is lower, does not match mesh
Preceding domestic city heat supply network heat demand, is unsuitable for the demand of urban area heat supply network, it is difficult to be used for business promotion and application；Second is that existing
Have that swimming pool type reactor branch is single (branch refers on primary Ioops for being connected to the pipeline of reactor), any design basis accident operating condition
Under all it cannot be guaranteed that continue heat supply；Three are the absence of the passive cooling recirculation system for alleviating the molten accident generation of heap, fourth is that radiation
Property gas treatment measure is unreasonable；Fifth is that reactor inherent safety rank is not high enough etc., and therefore, current swimming pool formula heat supply
Practicability, economy, the safety and reliability of heap still have greatly improved space.
Utility model content
For deficiency existing for current swimming pool type heating reactor, the purpose of real name utility model be to provide a kind of Applied economy,
Securely and reliably, suitable for the swimming-pool formula process heat reactor of the demand of urban area heat supply network.
To achieve the above objectives, the technical solution adopted in the utility model is a kind of swimming pool formula region low temperature heating reactor, packet
Include the reactor core that heap basin bottom is set, wherein the depth of the water in the heap pond is 20-30 meters；It further include described
Upper hanging basket, middle hanging basket, lower hanging basket and the reactor core pedestal from top to bottom set gradually in heap pond；Control is equipped in the upper hanging basket
The driving line of rod drive mechanism is equipped with control rod guide tubes and bundles in the middle hanging basket, and the reactor core is arranged in the lower hanging basket, institute
It states lower hanging basket and the top for being fixed on the reactor core pedestal of the heap tank floor is set, reactor uses control rod beam control system
Reactivity；It further include the primary Ioops being connected to the lower hanging basket, the water after heap in-core heating is passed through the primary Ioops
It is exchanged heat and is back in the heap pond except sending to the heap pond.
Further, the primary Ioops are equipped with primary Ioops main pump and primary Ioops heat exchanger, further include changing with the primary Ioops
The connected isolated loop of hot device, the isolated loop is equipped with isolated loop pump and isolated loop heat exchanger, the isolated loop change
Hot device is connected with urban heating network, the heat supply of the urban heating network Xiang Suoshu, and the pressure of the isolated loop is greater than described one time
The pressure on road.
Further, the primary Ioops further include being located in the heap pond, be connected to the lower hanging basket delay tank and with
The connected outlet pipe of the delay tank；The delay is passed through by the water after the reactor core heating under the action of primary Ioops
The primary Ioops main pump and the primary Ioops heat exchanger are sequentially entered after tank；The delay tank is heated for postponing by the reactor core
The decay of the radgas in water afterwards reduces the suffered dosage water of the primary Ioops main pump and the primary Ioops heat exchanger
It is flat.
Further, the delay tank is multiple, respective independent operating, and non-interference, the delay tank can be by blind
Plate, which is realized, to be blocked or is connected to, by adjusting the quantity of the delay tank of connection, to realize the heating adjusted in the primary Ioops
The inlet of water afterwards.
Further, the primary Ioops further include the water inlet pipe positioned at the heap sink top opening, are used for described one time
The return water in heap pond described in road direction；Natural Circulation clack valve is equipped in the lower hanging basket periphery；It further include that top connects the water inlet
The tail end opening of the jet pipe of pipe, the jet pipe is arranged near the Natural Circulation clack valve, by the water of the water inlet pipe
The tail end flowed in the jet pipe is open to form horizontal impact power, and the horizontal impact power enables to the Natural Circulation clack valve
It remains off, water is entered in the reactor core under the action of primary Ioops by the reactor core pedestal at this time, by institute
It states delay tank and the outlet pipe enters exchange and transmitting that the primary Ioops carry out heat；After shutdown, in the primary Ioops
Primary Ioops main pump keep inertia, realize Core cooling agent circulation, after the primary Ioops main pump is out of service, the jet pipe
The horizontal impact power be zero, the lower hanging basket inside and outside differential pressure described at this time is down to design value, and the Natural Circulation clack valve can be automatic
It opens, water is entered in the reactor core by the reactor core pedestal, is flowed out from the clack valve mouth of the Natural Circulation clack valve, described in realization
The long-term circulation of reactor core and water, exports the residual heating of the reactor core.
It further, further include that the pond cover board being arranged in the heap sink top opening is used as security barriers
In prevent foreign matter enter the heap pond in.
Further, further include be covered on it is above the water in the heap pond, set leachy pressure release condensing unit, it is described
The upper surface of pressure release condensing unit is equipped with the cold water layer that temperature is 40 DEG C, is gas between the pond cover board and the cold water layer
Space, the headroom are the zone of negaive pressure；When the evaporation capacity of the water in the heap pond reaches design standard, the pressure release is cold
Solidifying device can play the role of condensed steam, reduce the evaporation of water；It is described to let out when reactor generates bubble because of contingency
Pressure condensing unit can play the role of exhaust pressure relief by the stomata.
Further, the stereotype for meeting SHIELDING CALCULATION requirement is provided between the reactor core pedestal and the heap basin bottom,
The runner of the reactor core pedestal is equipped with strainer, can prevent solid impurity during operation from entering the reactor core.
Further, the upper hanging basket is segmented multilayered structure, can be layered lifting, in every layer of connection mating surface equipped with anti-
The para-seismic support for shaking support, meets shockproof requirements, and the upper hanging basket and the para-seismic support are all made of can convenient peace under water
The structure of assembly and disassembly.
The utility model has the beneficial effects that:
1. depth of water is 20-30m, core exit water temperature is improved by the hydrostatic in deep pond and will not be boiled, guarantee
Exit water temperature can reach 90 DEG C or more, meets the matching of city heat supply heat supply network and requires；A large amount of water guarantees reactor core simultaneously
In any accident, intervene unmanned, under conditions of any cooling way, water can also freely evaporate 15 to 30 days,
Reactor core all will not be exposed；
2. the type process heat reactor include several independent operatings, non-interference delay tank (be connected to lower hanging basket delay tank and
Outlet pipe on delay tank is equivalent to " branch " in background technique), it is ensured that when any one delay tank breaks down, instead
Answer heap without shutdown, still sustainable heat supply need to only carry out corresponding maintenance etc. to single delay tank, postpone the number of tank in principle
There is no restriction for amount, and the quantity of delay tank is determined according to heat output of reactor size；It can also be selected according to the heat supply network demand of urban area
The quantity of the delay tank of actual use is selected, remaining delay tank can be blocked using blind plate；
3. reactor core 2 is provided with passive Natural Circulation clack valve 16, when normal operation, draw by jet pipe 17 from water inlet pipe 13
It miscarries under raw jet impingement function, guarantees the clack valve closure of Natural Circulation clack valve 16, after shutdown, jet stream in jet pipe 17
Impact force is zero, and the clack valve of Natural Circulation clack valve 16 relies on inside and outside differential pressure, and clack valve automatically opens, it can be achieved that its water Natural Circulation
Function exports 2 residual heating of reactor core；
4. the reactor is provided with the delay tank 5 of delay radgas decay in heap pond 15, it is allowed to cool agent (i.e.
Water after being heated by reactor core 2) after entering primary Ioops, the requirement to primary Ioops heat exchanger 21 is reduced, main work is also reduced
Between skill, dose level of radiation suffered by primary Ioops main pump 20, primary Ioops heat exchanger 21；Simultaneously containing radioactive primary Ioops and
Intermediate isolating circuit is set between municipal heating systems heating network 24, and the pressure of isolated loop is greater than the pressure of primary Ioops, can avoid
Primary Ioops radiating medium enters urban heating network 24, improves its radioactive shielding and defencive function；
5. setting has the floating type pressure release condensing unit 8 of safety relief function above heap pond 15, in heap pond 15
Pond in air pressure it is normal when, which prevents the long-time of hot water in pond from evaporating, to pressure by the condensation of cold water layer 9
When more than certain value, which can realize exhaust pressure relief by stomata, improve the safety of reactor；
6. heap pond 15 is additionally arranged at the bottom of the stereotype 19 of shielding γ irradiation heat release, for preventing the load-bearing of lower concrete from losing
Effect；
7. the runner of reactor core pedestal 1 is equipped with strainer, prevent solid impurity from entering reactor core, strainer mesh meets filtering requirement
Meanwhile the design requirement of reactor core thermal-hydraulic need to be met；
8. reactor uses basket-hanging composite structure, provided about for fuel assembly, C&P systems and Control rod drive line
Beam, support and guiding role, at the same meet when reloading it is underwater can convenient installation and removal requirement；
9. reactor avoids adjusting the complexity for controlling reactor and needing by boron water concentration using control rod control reactivity
Work.
Detailed description of the invention
Fig. 1 is the structure general arrangement of swimming pool formula region low temperature heating reactor in specific embodiment of the present invention；
Fig. 2 is the system flow schematic diagram of swimming pool formula region low temperature heating reactor in specific embodiment of the present invention；
In figure: 1- reactor core pedestal, 2- reactor core, hanging basket under 3-, hanging basket in 4-, 5- postpone tank, the upper hanging basket of 6-, 7- outlet pipe,
8- pressure release condensing unit, 9- cold water layer, the headroom 10-, 11- control rod drive mechanism, the pond 12- cover board, 13- water inlet pipe, 14-
Para-seismic support, 15- heap pond, 16- Natural Circulation clack valve, 17- jet pipe, 18- strainer, 19- stereotype, 20- primary Ioops main pump,
21- primary Ioops heat exchanger, 22- isolated loop pump, 23- isolated loop heat exchanger, the urban heating network 24-.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 and Fig. 2 is respectively swimming pool formula region low-temperature heat supply pile structure general arrangement and system flow schematic diagram, above-mentioned figure
For signal and the flow chart for postponing 5 section of tank comprising one.Entire reaction pile element is placed in inside a big heap pond 15, heap
Core pedestal 1 is fixed on the bottom in heap pond 15, and reactor core 2 is placed in inside lower hanging basket 3, and lower hanging basket 3 is used to fixed constraint and bearing structure
It is connected at the fuel assembly and associated component of reactor core 2, and with reactor core pedestal 1, middle hanging basket 4 is equipped with control rod guide tubes and bundles, is used in combination
In compressing the fuel assembly for constituting reactor core 2, upper hanging basket 6 is equipped with the guiding mechanism of Control rod drive line, control rod drive mechanism 11
Using wirerope rod withdrawal principle, driving assembly is placed in heap top, is located at upper 6 top of hanging basket, control of the control rod in upper hanging basket 6
Under the action of rod drive mechanism 11, by the control rod guide tubes and bundles in middle hanging basket 4, it is lowered into lower hanging basket 3 or from lower hanging basket 3
Middle promotion is realized and is controlled the reactivity of reactor core 2.When normal operation, water is entered in reactor core 2 by the runner of reactor core pedestal 1, will
After the heat that reactor core 2 generates is taken out of, it is evacuated in delay tank 5 by primary Ioops main pump 20, after radioactive decay after a period of time
(decay time is changed according to the specification of used delay tank), is entered in primary Ioops by outlet pipe 7, passes through primary Ioops
Heat is transported in urban heating network 24 by heat exchanger 21 and isolated loop heat exchanger 23, after the transmitting for realizing heat, one time
Road coolant (water entered in primary Ioops) is again returned in heap pond 15 by water inlet pipe 13.After shutdown in the short time,
Running down flywheel by primary Ioops main pump 20 keeps appropriate inertia, realizes Core cooling agent circulation, stops transporting to primary Ioops main pump 20
Row, when pressure difference is down to a certain degree, the impact force for the jet stream that jet pipe 17 exports is 0, relies on lower 3 inside and outside differential pressure of hanging basket at this time,
Natural Circulation clack valve 16 can automatically open, and water is entered in reactor core 2 by reactor core pedestal 1, from the clack valve mouth of Natural Circulation clack valve 16
The long-term circulation of reactor core 2 and water is realized in outflow, exports 2 residual heating of reactor core.In order to avoid 15 bottom of the pond phase in longevity Nei Dui is mixed
The long-term decline born Y irradiation heat release and cause its performance of solidifying soil, is provided with below reactor core pedestal 1 and meets SHIELDING CALCULATION requirement
Stereotype 19.The runner of reactor core pedestal 1 is equipped with strainer 18, can prevent solid impurity during operation from entering reactor core 2, the mesh of strainer 18
While meeting filtering requirement, also meet the design requirement of reactor core thermal-hydraulic, not can increase the resistance of primary Ioops.Reactor fortune
Between the departure date, headroom 10 is the zone of negaive pressure, the cold water layer 9 for being about 40 ° above pressure release condensing unit 8, and water temperature is long-term in heap pond 15
60 DEG C or more are maintained at, evaporation is unavoidably had, pool gas pressure can be also gradually increased, and under normal circumstances, lean on cold water layer 9
Condensation reduce water evaporation, guarantee water amount meet design requirement always；When air pressure is excessive in pond, pressure release can be passed through
Pressure release is exhausted in the stomata of condensing unit 8, guarantees reactor safety.Pond cover board 12 is placed in right above reactor, i.e. conduct
The visual windows of 15 inner member of heap pond, also enter the security barriers in heap pond 15 as hall foreign matter.Meanwhile considering deep
The technique of reloading in pond, upper hanging basket 6 are segmented multilayered structure, can be layered lifting, and antidetonation branch is housed in every layer of connection mating surface
The para-seismic support 14 of support meets shockproof requirements, and upper hanging basket 6 and para-seismic support 14 are under water can convenient installation and removal knot
Structure.Isolated loop operating pressure is greater than the pressure of primary Ioops, can avoid primary Ioops radiating medium and enters urban heating network, real
Existing radioactive shield improves user for thermal safety.
Device described in the utility model is not limited to embodiment described in specific embodiment, those skilled in the art
Technical solution according to the present utility model obtains other embodiments, also belongs to the technological innovation scope of the utility model.
Claims (9)
1. a kind of swimming pool formula region low temperature heating reactor, including the reactor core (2) in heap pond (15) bottom is arranged, it is characterized in that: institute
The depth for stating the water in heap pond (15) is 20-30 meters；It further include from top to bottom being set gradually in the heap pond (15)
Upper hanging basket (6), middle hanging basket (4), lower hanging basket (3) and reactor core pedestal (1)；Control rod driving machine is equipped in the upper hanging basket (6)
The driving line of structure (11), control rod guide tubes and bundles are equipped in the middle hanging basket (4), and the reactor core (2) is arranged in the lower hanging basket (3)
Interior, the lower hanging basket (3) is arranged in the top for the reactor core pedestal (1) for being fixed on heap pond (15) bottom surface, reactor
Using control rod beam control system reactivity；It further include the primary Ioops being connected to the lower hanging basket (3), the heating in the reactor core (2)
Water afterwards is sent to through the primary Ioops and is exchanged heat and be back to except the heap pond (15) in the heap pond (15).
2. swimming pool formula as described in claim 1 region low temperature heating reactor, it is characterized in that: the primary Ioops are equipped with primary Ioops master
(20) and primary Ioops heat exchanger (21) are pumped, further includes the isolated loop being connected with the primary Ioops heat exchanger (21), the isolation
Circuit is equipped with isolated loop pump (22) and isolated loop heat exchanger (23), the isolated loop heat exchanger (23) and city heat supply pipe
Net (24) is connected, the urban heating network Xiang Suoshu (24) heat supply, and the pressure of the isolated loop is greater than the pressure of the primary Ioops.
3. swimming pool formula as claimed in claim 2 region low temperature heating reactor, it is characterized in that: the primary Ioops further include positioned at described
In heap pond (15), the delay tank (5) of the connection lower hanging basket (3) and the outlet pipe (7) being connected with delay tank (5)；
It is described by being sequentially entered after the delay tank (5) by the water after the reactor core (2) heating under the action of the primary Ioops
Primary Ioops main pump (20) and the primary Ioops heat exchanger (21)；The delay tank (5) is for postponing by after the reactor core (2) heating
Water in radgas decay, reduce the suffered of the primary Ioops main pump (20) and the primary Ioops heat exchanger (21)
Dosage level.
4. swimming pool formula as claimed in claim 3 region low temperature heating reactor, it is characterized in that: the delay tank (5) be it is multiple, respectively
Independent operating, non-interference, the delay tank (5) can be realized by blind plate and block or be connected to, by adjusting described in connection
Postpone the quantity of tank (5), to realize the inlet of the water after adjusting the heating in the primary Ioops.
5. swimming pool formula as claimed in claim 2 region low temperature heating reactor, it is characterized in that: the primary Ioops further include positioned at described
The water inlet pipe (13) of heap pond (15) top open part is used for return water of the primary Ioops to the heap pond (15)；Described
Lower hanging basket (3) periphery is equipped with Natural Circulation clack valve (16)；It further include the jet pipe (17) that top connects the water inlet pipe (13), institute
The tail end opening for stating jet pipe (17) is arranged near the Natural Circulation clack valve (16), by the water flow of the water inlet pipe (13)
It is open to form horizontal impact power in the tail end of the jet pipe (17), the horizontal impact power enables to the Natural Circulation valve
Valve (16) remains off, and water enters the reactor core by the reactor core pedestal (1) under the action of the primary Ioops at this time
(2) in, enter the exchange and transmitting that the primary Ioops carry out heat by delay tank (5) and the outlet pipe (7)；Shutdown
Afterwards, the primary Ioops main pump (20) in the primary Ioops keeps inertia, Core cooling agent circulation is realized, to the primary Ioops main pump
(20) after out of service, the horizontal impact power of the jet pipe (17) is zero, lower hanging basket (3) the inside and outside differential pressure drop described at this time
To design value, the Natural Circulation clack valve (16) can be automatically opened, and water enters the reactor core (2) by the reactor core pedestal (1)
In, it is flowed out from the clack valve mouth of the Natural Circulation clack valve (16), realizes the long-term circulation of the reactor core (2) and water, export institute
State the residual heating of reactor core (2).
6. swimming pool formula as described in claim 1 region low temperature heating reactor, it is characterized in that: further including being arranged in the heap pond
(15) the pond cover board (12) in top opening, as security barriers, for preventing foreign matter from entering the heap pond (15)
It is interior.
7. swimming pool formula as claimed in claim 6 region low temperature heating reactor, it is characterized in that: further including being covered on the heap pond
(15) above water, set leachy pressure release condensing unit (8), the upper surface of the pressure release condensing unit (8) is equipped with temperature
The cold water layer (9) that degree is 40 DEG C is headroom (10), the gas between the pond cover board (12) and the cold water layer (9)
Space (10) is the zone of negaive pressure；When the evaporation capacity of the water in the heap pond (15) reaches design standard, the pressure release condensation
Device (8) can play the role of condensed steam, reduce the evaporation of water；It is described when reactor generates bubble because of contingency
Pressure release condensing unit (8) can play the role of exhaust pressure relief by the stomata.
8. swimming pool formula as described in claim 1 region low temperature heating reactor, it is characterized in that: the reactor core pedestal (1) and the heap
The stereotype (19) for meeting SHIELDING CALCULATION requirement is provided between pond (15) bottom, the runner of the reactor core pedestal (1) is set
There are strainer (18), can prevent solid impurity during operation from entering the reactor core (2).
9. swimming pool formula as described in claim 1 region low temperature heating reactor, it is characterized in that: the upper hanging basket (6) is that segmented is more
Layer structure, can be layered lifting, connect the para-seismic support (14) that mating surface is equipped with seismic support at every layer, meet antidetonation and want
Ask, the upper hanging basket (6) and the para-seismic support (14) be all made of can convenient installation and removal under water structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859147.6U CN209216589U (en) | 2018-11-12 | 2018-11-12 | A kind of swimming pool formula region low temperature heating reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859147.6U CN209216589U (en) | 2018-11-12 | 2018-11-12 | A kind of swimming pool formula region low temperature heating reactor |
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| Publication Number | Publication Date |
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| CN209216589U true CN209216589U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821859147.6U Active CN209216589U (en) | 2018-11-12 | 2018-11-12 | A kind of swimming pool formula region low temperature heating reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115512864A (en) * | 2022-09-19 | 2022-12-23 | 上海核工程研究设计院有限公司 | Reactor loading and reloading system and method with cover opened downwards |
-
2018
- 2018-11-12 CN CN201821859147.6U patent/CN209216589U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115512864A (en) * | 2022-09-19 | 2022-12-23 | 上海核工程研究设计院有限公司 | Reactor loading and reloading system and method with cover opened downwards |
| CN115512864B (en) * | 2022-09-19 | 2024-05-10 | 上海核工程研究设计院股份有限公司 | Downward uncapped reactor loading and unloading system and method |
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Effective date of registration: 20220507 Address after: 100031 12C, floor 12, building 4, yard 1, naoshikou street, Xicheng District, Beijing Patentee after: Zhonghe Yanlong Technology Co.,Ltd. Address before: No.1 courtyard, Sanqiang Road, Xinzhen, Fangshan District, Beijing Patentee before: CHINA INSTITUTE OF ATOMIC ENERGY |