CN206210415U - Pool heat reactor - Google Patents

Pool heat reactor Download PDF

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Publication number
CN206210415U
CN206210415U CN201621089913.6U CN201621089913U CN206210415U CN 206210415 U CN206210415 U CN 206210415U CN 201621089913 U CN201621089913 U CN 201621089913U CN 206210415 U CN206210415 U CN 206210415U
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China
Prior art keywords
reactor
heat exchanger
heat
loop
pool
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Active
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CN201621089913.6U
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Chinese (zh)
Inventor
沈峰
陈耀东
白宁
蒋慧静
孙灿辉
熊思江
邢勉
李小生
张圣君
崔蕾
孟召灿
郑罡
王子冠
张迪
谢凯
龚春鸣
杨韵颐
李连荣
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State Power Investment Group Science and Technology Research Institute Co Ltd
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State Power Investment Group Science and Technology Research Institute Co Ltd
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C15/00Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/18Emergency cooling arrangements; Removing shut-down heat
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21DNUCLEAR POWER PLANT
    • G21D9/00Arrangements to provide heat for purposes other than conversion into power, e.g. for heating buildings
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

The utility model discloses a kind of pool heat reactor, including pond, reactor vessel, the reactor core in reactor vessel and the First Heat Exchanger outside reactor vessel, reactor vessel is located in pond and below the liquid level in pond, reactor vessel has vessel inlet and container outlet, First Heat Exchanger is connected together to the first loop of closing with the vessel inlet and container outlet of reactor vessel, First Heat Exchanger is suitable to be connected with heating network, and the water in reactor vessel carries out heat exchange by the water in First Heat Exchanger and heating network.According to pool heat reactor of the present utility model, by the first loop that closing will be formed between reactor and First Heat Exchanger, so that the operating pressure of working medium can be adjusted voluntarily in the first loop, and then improve the heating parameter of pool heat reactor, the pool heat reactor simple structure, low cost, heating efficiency is high, peak regulation is adaptable and safe and reliable.

Description

Pool heat reactor
Technical field
The utility model is related to nuclear energy applied technical field, more particularly, to a kind of pool heat reactor.
Background technology
For the current energy of China and environment situation, to tackle the present situation that energy resources are rare, environmental pollution is serious, must The heat-supplying mode of alternative coal-burning boiler and clean and effective must be considered, and with the gradually expansion of North City Areas benefiting from central heating Greatly, low-temperature heat supply piles up the competitive advantage of heating field and also will progressively emerge from.
Existing heat supplying nuclear reactor is usually shell-type reactor, it is necessary to set emergency safety water filling and spray facility etc. is System, structure is complex, and when nuclear reactor occurs cut accident and non-cut accident, it is necessary to be entered using different equipment Row treatment, its initial outlay high cost, security is poor.
In addition, coolant circuit is interconnected with the water in pond in existing pool reactor, coolant circuit Interior operating pressure is adjusted by adjusting depth of the reactor in pond, and the depth in pond is typically limited, also The operating pressure of coolant circuit is limited, the heating parameter for ultimately causing reactor is relatively low.
The content of the invention
The utility model is intended at least solve one of above-mentioned technical problem to a certain extent.
Therefore, the utility model proposes a kind of pool heat reactor, the pool heat reactor simple structure is invested into This is low, and heating efficiency is high, peak regulation is adaptable and safe and reliable.
According to pool heat reactor of the present utility model, including pond;Reactor vessel, the reactor vessel is located at In the pond and below the liquid level in the pond, the reactor vessel has vessel inlet and container outlet;Position Reactor core in the reactor vessel;First Heat Exchanger outside the reactor vessel, the First Heat Exchanger with The vessel inlet and container outlet of the reactor vessel are connected together to the first loop of closing, and the First Heat Exchanger is suitable to It is connected with heating network, the water in the reactor vessel carries out hot friendship by the First Heat Exchanger with the water in the heating network Change.
According to pool heat reactor of the present utility model, it is arranged in pond by by reactor vessel, and will be anti- The First Heat Exchanger of heap container exterior is answered to be connected with reactor vessel so that envelope is formed between reactor vessel and First Heat Exchanger The first loop closed, so that the first loop is isolated under accidental conditions with pond, the fortune of working medium in the first loop Row pressure is not influenceed by depth of water, can voluntarily adjust, and then can be by the pressure of working medium in the first loop of regulation The heating parameter of pool heat reactor is improved, in addition, compared with the coal heating mode of traditional heat supply, pool heat supply reaction Heap fuel of heat supply expense is few, and heat cost is low, great economic benefit, is capable of achieving zero-emission, and heating efficiency is significantly larger than combustion Coal burning boiler, its peak regulation adaptability is stronger, and the heat that reactor is produced passes through multistage circuit transmission to heating network, it is possible to reduce put Radioactive pollution.
In addition, according to pool heat reactor of the present utility model, can also have following additional technical characteristic:
According to one embodiment of the present utility model, the pool heat reactor also includes:Positioned at pond outside The second heat exchanger, second heat exchanger and the First Heat Exchanger are connected together to the second servo loop of closing, the heat supply Net is connected together to tertiary circuit with second heat exchanger, the water in the reactor vessel by the First Heat Exchanger and Second heat exchanger carries out heat exchange with the water in the heating network.
According to one embodiment of the present utility model, the pool heat reactor also includes:Primary Ioops voltage-stablizer, it is described Primary Ioops voltage-stablizer is connected on the pipeline between the reactor vessel and the First Heat Exchanger.
According to one embodiment of the present utility model, the pool heat reactor also includes:Secondary circuit voltage-stablizer, it is described Secondary circuit voltage-stablizer is connected on the pipeline between the First Heat Exchanger and second heat exchanger.
According to one embodiment of the present utility model, on the pipeline between the reactor vessel and the First Heat Exchanger First circulation pump is provided with, the pipeline between the First Heat Exchanger and the heating network is provided with second circulation pump, described first Pipeline between heat exchanger and second heat exchanger is provided with the 3rd circulating pump.
According to one embodiment of the present utility model, the pressure in the second servo loop is more than the pressure in first loop Power.
According to one embodiment of the present utility model, the pressure in first loop is 1.5-20 standard atmospheric pressure Minute-pressure.
According to one embodiment of the present utility model, the pressure in first loop is 5-12 standard atmospheric pressure.
According to one embodiment of the present utility model, the pressure in first loop is 6-9 standard atmospheric pressure.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined Become substantially and be readily appreciated that, wherein:
Fig. 1 is the schematic diagram of the pool heat reactor according to the utility model one embodiment;
Fig. 2 is the schematic diagram of the pool heat reactor according to the utility model another embodiment.
Reference:
100:Pool heat reactor;
10:Reactor vessel;11:Vessel inlet;12:Container outlet;
20:Reactor core;
30:Pond;
40:First Heat Exchanger;41:First import;42:First outlet;43:Second outlet;44:Second import;
50:Heating network;
60:Second heat exchanger;61:First import;62:First outlet;
70a:Primary Ioops voltage-stablizer;70b:Secondary circuit voltage-stablizer;
80a:First circulation pump;80b:3rd circulating pump;80c:Second circulation pump.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.
1 and Fig. 2 specifically describes the pool heat reactor 100 according to the utility model embodiment below in conjunction with the accompanying drawings.
Pool heat reactor 100 according to the utility model embodiment is including pond 30, reactor vessel 10, positioned at anti- Answer the reactor core 20 in heap container 10 and the First Heat Exchanger 40 positioned at the outside of reactor vessel 10.
Specifically, reactor vessel 10 is located in pond 30 and below the liquid level in pond 30, reactor vessel 10 vessel inlets 11 and container outlet with vessel inlet 11 and container outlet 12, First Heat Exchanger 40 and reactor vessel 10 12 the first loops for being connected together to closing, First Heat Exchanger 40 is suitable to be connected with heating network 50, the water in reactor vessel 10 Heat exchange is carried out by the water in First Heat Exchanger 40 and heating network 50.
In other words, the pool heat reactor 100 is main by pond 30, reactor vessel 10, positioned at reactor vessel 10 Interior reactor core 20 and the First Heat Exchanger 40 positioned at the outside of reactor vessel 10 is constituted.Wherein, there is water in pond 30, reactor holds Reactor core 20 is provided with device 10, reactor vessel 10 is located in pond 30 and below the liquid level in pond 30, so that instead The underwater for answering the reactor core 20 of heap container 10 to be completely submerged in pond 30, so as to can not only be utilized under accidental conditions The heat extraction circulatory system in pond constantly exports to the decay heat of pool heat reactor 100 in external environment condition, realizes heat Discharge, and compared with shell-type reactor, when there is accident, the water in pond 30 derives reactor core 20 during being accident Waste heat provides huge middle hot trap, is an important mitigation strategy of reactor accident.
Further, reactor vessel 10 has the vessel inlet 11 and container outlet 12 that can pass in and out cooling water, first Heat exchanger 40 is located at outside reactor vessel 10, and the primary side of First Heat Exchanger 40 has the first import 41 that can pass in and out cooling water With first outlet 42, the first import 41 of the primary side of First Heat Exchanger 40 connects with container outlet 12, first outlet 42 and container The connection of import 11 forms the first loop of closing, and the operating pressure of cooling water is not subject to depth of water in pond 30 in the first loop Influence, can voluntarily adjust, it is preferable that the pressure in the first loop is adjusted to it is more slightly higher than pressure in pond 30, so as to the Minute-pressure is formed in primary Ioops, the heating parameter of pool heat reactor 100 can be not only improved under accidental conditions, and When there is accident, it is ensured that reactor core 20 is unlikely to largely to be lost in due to cooling water and causes exposed so that pool heat supply is reacted Heap 100 has the condition for reducing level of security, advantageously reduces equipment manufacturing cost.
Additionally, as shown in figure 1, the secondary side of First Heat Exchanger 40 is joined directly together with heating network 50, the heat that reactor is produced By the first circuit transmission to First Heat Exchanger 40, then passing to heating network 50 by First Heat Exchanger 40 carries out heat supply.For Heat supply network 42 can be conventional heating system, such as municipal heating system.Certainly, may be used also between First Heat Exchanger 40 and heating network 50 To be provided with the second heat exchanger (as shown in Figure 2), the 3rd heat exchanger etc., so as to while heating efficiency is ensured, further carry The security of pool heat reactor 100 high, this will be understood by for a person skilled in the art.
Thus, according to pool heat reactor 100 of the present utility model, pond 30 is arranged on by by reactor vessel 10 It is interior, and the First Heat Exchanger 40 of the outside of reactor vessel 10 is connected with reactor vessel 10 so that reactor vessel 10 and The first loop of closing is formed between First Heat Exchanger 40 so that the first loop under accidental conditions with the phase of pond 30 Isolation, the operating pressure of working medium is not influenceed by depth of water in the first loop, can voluntarily adjust, and then can be by adjusting The pressure for saving working medium in the first loop improves the heating parameter of pool heat reactor 100, in addition, being supplied with the fire coal of traditional heat supply Hot mode is compared, and the fuel of heat supply expense of pool heat reactor 100 is few, and heat cost is low, great economic benefit, is capable of achieving zero Discharge, and heating efficiency is significantly larger than coal-burning boiler, and its peak regulation adaptability is stronger, and the heat that reactor is produced is by multistage Circuit transmission is to heating network, it is possible to reduce radioactive pollution.
In some specific embodiments of the present utility model, pool heat reactor 100 also includes being located at outside pond 30 Second heat exchanger 60 in face, the second heat exchanger 60 is connected together to the second servo loop of closing, heating network 50 with First Heat Exchanger 40 Tertiary circuit is connected together to the second heat exchanger 60, the water in reactor vessel 10 is exchanged heat by First Heat Exchanger 40 and second Device 60 carries out heat exchange with the water in heating network 50.
Specifically, as shown in Fig. 2 the second heat exchanger 60 is located at outside reactor vessel 10, and the primary side of the second heat exchanger 60 With the first import 61 and first outlet 62 that can pass in and out cooling working medium, the secondary side of First Heat Exchanger 40 is cold with that can pass in and out But the second import 44 of working medium and second outlet 43, the first import 61 of the primary side of the second heat exchanger 60 and First Heat Exchanger 40 2 The second outlet 43 of secondary side is connected, and first outlet 62 connects the second servo loop for forming closing, the second heat exchanger with the second import 44 60 secondary sides are connected to form tertiary circuit with heating network 50, and the heat that reactor is produced is by the first circuit transmission to the first heat exchange Device 40, then the second heat exchanger 60 is passed to by second servo loop, eventually passing tertiary circuit and passing to heating network 50 carries out heat supply, So as on the basis of the heating efficiency of pool heat reactor 100 is ensured, will directly be connected with reactor using second servo loop First loop is isolated with heating network 50, it is ensured that under any accident operating mode, will not carry out radioactivity to the heating net belt in city, enters one Improve the security of pool heat reactor 100 in step ground.
Preferably, pool heat reactor 100 also includes that primary Ioops voltage-stablizer 70a, primary Ioops voltage-stablizer 70a are connected to instead Answer on the pipeline between heap container 10 and First Heat Exchanger 40.
Reference picture 2, primary Ioops voltage-stablizer 70a is located at the first import 41 of container outlet 12 and the primary side of First Heat Exchanger 40 Between pipeline on, the pressure in the first loop can be adjusted by primary Ioops voltage-stablizer 70a, thus can not only ensure pool supply The heating parameter of thermal reactor 100, and security performance can also be increased.
Further, pool heat reactor 100 also includes that secondary circuit voltage-stablizer 70b, secondary circuit voltage-stablizer 70b are connected to On pipeline between the heat exchanger 60 of First Heat Exchanger 40 and second.
Reference picture 2, secondary circuit voltage-stablizer 70b is located at the first import 61 of the second heat exchanger 60 and First Heat Exchanger 40 2 times On pipeline between the second outlet 43 of side, the pressure of the cooling working medium of second servo loop can be adjusted by secondary circuit voltage-stablizer 70b Power, so that the cooling working medium pressure in second servo loop is slightly above the pressure of cooling working medium in the first loop, in accident conditions Under, the cooling working medium in the first loop will not be leaked to second servo loop, in order to avoid radiation is caused to the cooling working medium of second servo loop Contact scar, further improves the security performance of pool heat reactor 100.
Alternatively, primary Ioops voltage-stablizer 70a and secondary circuit voltage-stablizer 70b can by electric heater (not shown) heat and The spray of spray thrower (not shown) adjusts voltage-stablizer internal pressure.
Wherein, the pipeline between reactor vessel 10 and First Heat Exchanger 40 is provided with first circulation pump 80a, the second heat exchange Pipeline between device 60 and heating network 50 is provided with second circulation pump 80b, between the heat exchanger 60 of First Heat Exchanger 40 and second Pipeline is provided with the 3rd circulating pump 80c.
Specifically, as shown in Fig. 2 the vessel inlet 11 of reactor vessel 10 goes out with the first of the primary side of First Heat Exchanger 40 Pipeline between mouth 42 is provided with first circulation pump 80a, the second import 44 of the secondary side of First Heat Exchanger 40 and the second heat exchanger Pipeline between 60 first outlet 62 is provided with the 3rd circulating pump 80c, between the secondary side of the second heat exchanger 60 and heating network 50 Pipeline be provided with second circulation pump 80b so that using the pump function of circulating pump (80a, 80b, 80c), it is ensured that the first loop, Cooling working medium in tertiary circuit and second servo loop can circulation conveying in the loop, and then realize between three circulation loops Heat exchange.
Alternatively, the pressure in second servo loop is more than the pressure in the first loop.
Specifically, with heating network 50 be isolated in the first loop by second servo loop, that is to say, that the first loop and municipal heating systems Be isolated, and the pressure of working medium is slightly above the first loop in second servo loop so that, under accident conditions, the first loop it is cold But water will not be leaked to second servo loop, in order to avoid radioactive pollution is caused to the cooling working medium of second servo loop;Meanwhile, second time Road also functions to additional hot trap effect, under some accident conditionses, can partly derive the waste heat of reactor core 20.
Preferably, the pressure of cooling working medium can be 0.8MPa in second servo loop, the First Heat Exchanger 40 in second servo loop Cooling working medium temperature at second import 44 of secondary side is 70 DEG C, and the cooling working medium temperature at second outlet 43 is 115 DEG C.
Alternatively, the pressure in the first loop is the 1.5-20 minute-pressure of standard atmospheric pressure.Advantageously, in the first loop Pressure is the 5-12 minute-pressure of standard atmospheric pressure.Preferably, the pressure in the first loop is 6-9 standard atmospheric pressure.
The determination of the operational factor of pool heat reactor 100 is according to design and user terminal (i.e. heating network 50) Technical requirements balance solidification is obtained.Too low operating pressure (being, for example, less than 1.5 standard atmospheric pressures) can cause reactor 100 Outlet temperature it is too low (can only achieve 100 DEG C or so), the temperature be difficult adapt to municipal heating systems demand (large-scale heat supply network backwater temperature Degree requires 110 DEG C).Too high pressure (such as more than 20 standard atmospheric pressures) is although reactor core 20 can be greatly improved Outlet temperature (such as presurized water reactor can reach 150 standard atmospheric pressures or so, and outlet temperature can reach more than 310 DEG C), but The problems such as high pressure can bring cost to be significantly increased, the security of system complex and reactor 100 is greatly reduced.Set according to optimization Meter, the optimum pressure section of the pool heat reactor 100 is between 5-12 standard atmospheric pressure, the operating pressure scope is ensureing On the premise of reactor 100 is inherently safe, it is possible to achieve large-scale heat supply network (more than 120 DEG C of heat supply temperature) and part industrial heating Demand.If the design of pool heat reactor 100 uses 6 atmospheric pressure (in the range of 6-9 standard atmospheric pressure), this is System outlet temperature fully meets large-scale heat supply network technical requirements up to 120 DEG C, while economy and security have been taken into account well, It is a prioritization scheme dedicated for resident's heat supply.
Wherein it should be noted that minute-pressure is the pressure of the pressure of coolant, or container outlet in the first loop, Because reactor core is to can produce a certain amount of pressure loss, the pressure of container outlet to be slightly less than the pressure at reactor core between container outlet.
The design parameter of the cooling water pressure in the first loop can be according to cooling working medium pressure, pond 30 in second servo loop The actual design demands such as interior water pressure make accommodation, so as to can not only improve pool confession under accidental conditions The heating parameter of thermal reactor 100, and when there is accident, it is ensured that reactor core 20 is unlikely to largely to be lost in due to cooling water Cause exposed so that pool heat reactor 100 has the condition for reducing level of security, advantageously reduces equipment manufacturing cost.
Sum it up, the pool heat reactor 100 according to the utility model embodiment, mainly by three circulation loops and Security system is constituted, and the first loop is coolant circuit, with cooling agent as carrier, reactor core disintegration energy is effectively derived; Second servo loop is radioactivity isolated loop, while playing a part of additional hot trap;Tertiary circuit is heat supplying loop, with thermal source user Pipe network is connected.Reactor core implosion is become three circulation loops the Energy Efficient for producing derives, and is used for district heating system.
First loop is mainly made up of reaction reator body and reactor coolant loop.Reactor body construction is by reactor Container, reactor core, in-pile component and CRDM etc. are constituted.Reactor core is located in reactor vessel, reactor vessel submergence In a deep well, compared with the pool reactor during reactor core directly is immersed in into pond, the pressure in reactor vessel is more Height, makes its heating parameter increase.And, compared with shell-type reactor, the water in the system in well can be for during accident Derive residual heat of nuclear core and huge middle hot trap is provided, be an important mitigation strategy of reactor accident.Reactor core upper and lower part It is respectively equipped with chamber.CRDM is located at reactor core top.
Reactor coolant loop is made up of several loops, and each loop is led by the primary side of one-level plate type heat exchanger The composition such as pipeline, valve of pump and correlation.Reactor inlet pipeline is connected to the bottom of core pressure vessel, that is to say, that under Chamber is connected with several cold pipes.Compared with existing presurized water reactor technology, the reactor vessel of the system is submerged in pond, Pressure vessel can not set descending branch, and equipment is simplified, and reduce the resistance of cooling agent.Reactor export pipeline is connected to heap The top of core pressure vessel, that is to say, that reactor upper chamber is connected with several heat pipes.
Pool heat reactor 100 is provided with second servo loop, and coolant circuit is connected with municipal heating systems.If second servo loop by Dry loop composition, each loop by the secondary side of first-class heat exchanger, the primary side of secondary heat exchanger, circulating pump, voltage-stablizer with And corresponding pipeline, valve composition.With city heat supply pipeline be isolated in reactor coolant loop by second servo loop, it is ensured that appoints Under what accident conditions, radioactivity will not be carried out to the heating net belt in city.And the pressure of working medium is slightly above first time in second servo loop Road, under accident conditions, the cooling agent in the first loop will not be leaked to second servo loop, in order to avoid the working medium of second servo loop is made Into radioactive pollution;Second servo loop plays additional hot trap effect simultaneously, under some accident conditionses, can partly derive more than reactor core Heat.
Pool heat reactor 100 is additionally provided with three loops, is connected with the heating network in city.Tertiary circuit by one or Several loops are constituted, and each loop is by the secondary side of secondary heat exchanger, constant pressure pump, circulating pump and corresponding pipeline, valve Composition.
In addition, being additionally provided with voltage-stablizer on reactor coolant loop and second servo loop, heated by electric heater and sprayed The spray of device adjusts voltage-stablizer internal pressure.Voltage-stablizer is connected with release case, and connecting pipe is provided with pressure-relief valve and safety Valve.When voltage-stablizer pressure it is high to setting valve when, pressure-relief valve is opened, and voltage-stablizer is connected with release case so that the pressure in voltage-stablizer Power reduction;When voltage-stablizer pressure it is high to a setting valve higher when, safety valve is opened, and voltage-stablizer is connected with water so that surely Pressure reduction in depressor.
The security system of the pool heat reactor 100 mainly includes the pond heat extraction circulatory system, pond heat extraction cyclic system System is made up of the outer air cooler of shielding factory building, pond inside heat exchanger and associated conduit, valve, and the outer air cooler of shielding factory building is located at screen Cover outside factory building, connecting pipe is through containment and keeps containment leak tightness, with air as ultimate heat sink, realizes water and air Heat exchange, water is cooled down without time limit.After pond water temperature rises reaches a high temperature setting valve, the pond heat extraction circulatory system To start, flowing will be formed under buoyancy lift driving after fluid heating in the circulatory system, hot fluid will be risen in outdoor air cooling device, Under air cooling, density rises, and in the heat-exchange tube that density contrast effect flows down in back pool, so goes round and begins again to be formed and follows Ring, during decay heat endlessly to export to environment.
The temperature of cooling agent in micro- pressurization well-type reactor of the pool heat reactor 100 according to the utility model embodiment Degree, pressure are relatively low, when the heap major loop that reacts is damaged, will not be largely lost in and be evaporated due to cooling agent and cause reactor core naked Dew.The characteristic of low temperature minute-pressure makes it possess the condition for reducing equipment safety rank, advantageously reduces equipment manufacturing cost.
Reactor vessel does not set descending branch, and equipment is simplified, and reduces the resistance of cooling agent.Using plate-type heat-exchange Device, compact conformation, and maintenance cost is relatively low.Compared with traditional PWR nuclear power plant, reactor core is used without boron scheme, is simplified existing There is the change applied in power plant to hold system, simplify operation technological process.Using the pond heat extraction circulatory system, under density contrast effect Circulation is formed, decay heat is endlessly exported in environment, safety guarantee does not have time restriction.Reactor coolant loop Low-pressure low-temperature operation characteristic, the passive feature of security system, the huge heat release capacity in deep water pond and air cooling follow Air is excluded decay heat, above overall characteristic in pond by ring so that the design is able to ensure that reaction Heap is inherently safe, actual elimination reaction heap reactor core failure risk.
Other compositions of pool heat reactor 100 according to the utility model embodiment and operation are general for this area All it is known for logical technical staff, is not detailed herein.
In description of the present utility model, it is to be understood that term " on ", D score, "front", "rear", " top ", " bottom " The orientation or position relationship of the instructions such as " interior ", " outward " are, based on orientation shown in the drawings or position relationship, to be for only for ease of and retouch State the utility model and simplify and describe, rather than indicate imply signified device or element must have specific orientation, with Specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In description of the present utility model, " multiple " is meant that two or two More than, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected;Can Being to mechanically connect, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi Two connections of element internal.For the ordinary skill in the art, above-mentioned term can as the case may be understood Concrete meaning in the utility model.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be Combined in an appropriate manner in one or more any embodiments or example.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is not departing from the utility model Principle and objective in the case of above-described embodiment can be changed in the range of the utility model, change, replace and Modification.

Claims (9)

1. a kind of pool heat reactor, it is characterised in that including:
Pond;
Reactor vessel, the reactor vessel is located in the pond and below the liquid level in the pond, described anti- Answering heap container has vessel inlet and container outlet;
Reactor core in the reactor vessel;
First Heat Exchanger outside the reactor vessel, the First Heat Exchanger enters with the container of the reactor vessel Mouth and container outlet are connected together to the first loop of closing, and the First Heat Exchanger is suitable to be connected with heating network, the reaction Water in heap container carries out heat exchange by the First Heat Exchanger with the water in the heating network.
2. pool heat reactor according to claim 1, it is characterised in that also including outside the pond Two heat exchangers, second heat exchanger and the First Heat Exchanger are connected together to the second servo loop of closing, the heating network with Second heat exchanger is connected together to tertiary circuit, and the water in the reactor vessel passes through the First Heat Exchanger and second Heat exchanger carries out heat exchange with the water in the heating network.
3. pool heat reactor according to claim 2, it is characterised in that also including primary Ioops voltage-stablizer, described one Loop voltage-stablizer is connected on the pipeline between the reactor vessel and the First Heat Exchanger.
4. pool heat reactor according to claim 3, it is characterised in that also including secondary circuit voltage-stablizer, described two Loop voltage-stablizer is connected on the pipeline between the First Heat Exchanger and second heat exchanger.
5. pool heat reactor according to claim 2, it is characterised in that the reactor vessel is changed with described first Pipeline between hot device is provided with first circulation pump, and the pipeline between second heat exchanger and the heating network is provided with second Circulating pump, the pipeline between the First Heat Exchanger and second heat exchanger is provided with the 3rd circulating pump.
6. pool heat reactor according to claim 2, it is characterised in that the pressure in the second servo loop is more than institute State the pressure in the first loop.
7. the pool heat reactor according to any one of claim 1-6, it is characterised in that in first loop Pressure is 1.5-20 standard atmospheric pressure.
8. pool heat reactor according to claim 7, it is characterised in that the pressure in first loop is 5-12 Individual standard atmospheric pressure.
9. pool heat reactor according to claim 8, it is characterised in that the pressure in first loop is 6-9 Individual standard atmospheric pressure.
CN201621089913.6U 2016-04-12 2016-09-28 Pool heat reactor Active CN206210415U (en)

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