CN208507204U - A kind of reactor circuit - Google Patents
A kind of reactor circuit Download PDFInfo
- Publication number
- CN208507204U CN208507204U CN201820701470.4U CN201820701470U CN208507204U CN 208507204 U CN208507204 U CN 208507204U CN 201820701470 U CN201820701470 U CN 201820701470U CN 208507204 U CN208507204 U CN 208507204U
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- CN
- China
- Prior art keywords
- coolant
- reactor
- circuit
- heat exchanger
- reactor vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
Abstract
The utility model provides a kind of reactor circuit, the reactor circuit includes reactor vessel, a secondary circuit heat exchanger, throttling set, coolant reservoir, coolant pump, wherein, the reactor vessel, a secondary circuit heat exchanger, throttling set, coolant reservoir and coolant pump are connected in sequence by pipeline.
Description
Technical field
The utility model relates to a kind of reactor circuits.
Background technique
Concentrated supply of heating in the city is provided using nuclear reactor, is one of potential use of nuclear energy.With the raising of environmental requirement,
There is no the nuclear reactor heating project of exhaust gas and greenhouse gas emission gradually to be put on schedule.Therefore nuclear energy group is competing both at home and abroad
Mutually exploitation nuclear heating technology.
But nuclear heating has the technical requirements of itself: 1) its product is 90 DEG C or so of hot water, therefore reactor returns
Road does not require to operate in high-temperature high-pressure state.2) in economy, due to heating market competition excitation, and business revenue window only has 4-6
A month, therefore the nuclear heating project demand period is short, cost of investment is low.3) in safety, since heating project is close to residential block,
And its product is directly contacted with the production and living of people (unlike electricity), therefore never allows that major reaction heap accident occurs, less
Allow radioactivity release to resident's heat supplying loop.
Based on above-mentioned requirements, the reactor circuit structure of the nuclear power station currently used for power generation is not particularly suited for nuclear heating,
Because it runs on high-temperature high-pressure state, entire Nuclear island equipment capital intensive, and the construction period is very long.
Therefore, how utility model go out it is a kind of it is at low cost, structure is simple, natural-circulation capacity with higher, realizes warp
Ji property and the reactor circuit of fusion and the loop structure of low-temperature heat supply reactor of safety become urgently to be resolved ask
Topic.
Utility model content
The utility model in view of the deficiencies of the prior art, proposes a kind of reactor circuit, which is characterized in that the reactor
Circuit includes reactor vessel, a secondary circuit heat exchanger, throttling set, coolant reservoir, coolant pump, wherein described
Reactor vessel, a secondary circuit heat exchanger, throttling set, coolant reservoir and coolant pump are sequentially connected by pipeline
It forms.
Preferably, the secondary circuit heat exchanger and coolant reservoir, on the top of the reactor vessel
Side.
Preferably, the coolant in the coolant reservoir boosts under the driving of the coolant pump, passes through cooling
Agent enters pipe and flows into the reactor vessel；It heats up after being heated in the reactor vessel by nuclear fuel, by coolant outlet pipe,
The secondary circuit heat exchanger is flowed through, intermediate loop cooling is transferred heat to, then flow into the throttling set, by described
Throttling set flows into the coolant reservoir after being depressurized to an atmospheric pressure.
Preferably, the coolant reservoir is communicated with the atmosphere.
Preferably, the reactor circuit further includes pressure relief pipeline, pressure relief pipeline connection coolant outlet pipe and described
Coolant reservoir is formed in parallel with the secondary circuit heat exchanger and the throttling set.
Preferably, on the pressure relief pipeline, it is provided with normally closed control valve.
Preferably, the coolant enters pipe and coolant pump and coolant outlet pipe, a secondary circuit heat exchanger and throttling
The quantity of device is two sets or more.
Preferably, heat exchanger is provided in the coolant reservoir, the heat exchanger passes through pipeline and outside
Cooling system connection.
Preferably, the reactor circuit is additionally provided with melt pit recirculation line, the melt pit recirculation line connection position
The melt pit of workshop accesses the coolant reservoir after reconnecting pump where reactor vessel.
Compared with prior art, the utility model has the following beneficial effects:
The loop structure of low-temperature heat supply reactor designed by the utility model is set since circuit is low-pressure designs
It is standby at low cost；Since equipment circuit is simple, the equipment such as including voltage-stablizer, therefore entire reactor circuit cost of investment are eliminated
It is low；Circuit natural-circulation capacity with higher, and due to being only equipped with simple security system using low-pressure designs,
It is able to achieve under design high security and accident and routinely intervenes feasibility, realize the fusion of economy and safety.
Detailed description of the invention
Fig. 1 is the schematic diagram of the loop structure of the low-temperature heat supply reactor of the utility model, wherein
1- reactor vessel, mono- secondary circuit heat exchanger of 2-, 3- throttling set, 4- coolant reservoir, 5- cooler
Pump, 6- coolant outlet pipe, 7- coolant enter that pipe, 8- release pipeline, the normally closed control valve of 9-, heat is handed in 10- coolant reservoir
Parallel operation, 11- melt pit.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
As shown in Figure 1, a kind of loop structure of low-temperature heat supply reactor of the utility model, including reactor circuit, in
Between three circuit, user loop circuits, heat is successively transmitted by heat exchanger between circuit.
Above-mentioned reactor circuit, performance loop when operating normally is by reactor vessel 1, a secondary circuit heat exchanger
2, throttling set 3, coolant reservoir 4, coolant pump 5, are linked in sequence by pipeline.It is cold in coolant reservoir 4
But agent is under the driving of coolant pump 5, boosting, enters pipe by coolant and flows into reactor vessel 1；By core in reactor vessel
After fuel heating, heating by coolant outlet pipe, flows through a secondary circuit heat exchanger 2, after transferring heat to intermediate loop,
Cooling, then throttling set 3 is flowed into, an atmospheric pressure is depressurized to by throttling set, then flows into coolant reservoir 4.From return
The normal mode of operation on road can be seen that above-mentioned reactor circuit and work in low-pressure low-temperature state and traditional commercial reactor
It compares and eliminates this equipment of voltage-stablizer.
Preferably, wherein a secondary circuit heat exchanger 2 and coolant reservoir 4, positioned at the over top of reactor vessel,
Certain difference in height is formed with reactor vessel.It is arranged so arrangement, primarily to forming the ability and gravity of Natural Circulation
The ability of injection.After non-pipeline cut accident occurs, if coolant pump is unavailable, coolant is above by a secondary circuit
Heat exchanger in heat exchanger or coolant reservoir is cooling, the shape between pipeline, reactor vessel, coolant reservoir
At Natural Circulation, continue to take out of the heat of reactor.After pipeline cut accident occurs, although in early period reactor vessel
Pressure can be slightly higher, but the coolant in coolant reservoir quickly, constantly will enter pipe injection by coolant by difference in height
In reactor vessel, the fuel assembly in reactor vessel is flooded.
Preferably, wherein coolant reservoir is communicated with the atmosphere, and is in normal pressure.It designs in this way, in addition to making at entire circuit
The safety operation under coolant operation and accident in outside the low-pressure state close to atmospheric pressure, while when also facilitating normal operation.
When operating normally, the boric acid concentration in coolant will be adjusted with runing time, while coolant also has sampling
Demand, the operation for coolant when this normal operation can complete (or even directly by connecting the storage bin of normal pressure
Completed in storage bin), it is realized without equally needing to connect pressure duct and high-pressure pump to business nuclear power station.In addition, working as
When accident occurs, coolant reservoir assumes responsibility for the function of hot trap and cooling water source, be designed as normal pressure then facilitate artificially intervene
Operation in a simple manner, is injected in storage box such as continuously by the water of water or other sources in melt pit.
Preferably, above-mentioned reactor circuit is additionally provided with pressure relief pipeline, connects coolant outlet pipe and coolant reservoir,
It is formed in structure with a secondary circuit heat exchanger and throttling set in parallel.This pressure relief pipeline is used under non-cut accident
Natural convection loop is formed, for reactor vessel release under cut accident.A secondary circuit heat exchanger and throttling after all
Device has very big flow resistance, so needing that circuit in parallel is arranged, to reduce the circuit resistance of Natural Circulation, and when necessary
The saturation vapour in reactor vessel is directly injected into coolant reservoir, to carry out release to reactor vessel.
Preferably, on pressure relief pipeline, it is provided with normally closed control valve.When normal operation, valve is normally closed.Only when
After generation accident, the valve or valve group are just opened, and are used to form natural convection loop or for reactor vessel release.
Preferably, coolant enters at least two sets of pipe and coolant pump, coolant outlet pipe, a secondary circuit heat exchanger, section
Stream device, also at least two sets.The setting of more set circuits, on the one hand due to the limitation of place capacity, an especially secondary circuit heat is handed over
Parallel operation；On the other hand, when problem occurs for one of circuit, circuit in addition can be used to alleviate accident.
Preferably, it is provided with heat exchanger in coolant reservoir, which passes through pipeline and external cooling system
System connection.Coolant reservoir is to use as hot trap and injection water tank in accident, it is therefore necessary to keep the heat of wherein water
Amount is persistently taken away, and the volume of water is persistently supplemented, and this takes away the task of heat and amount of makeup water, needs external system
Access.Since coolant reservoir is in normal pressure state, heat is taken away from coolant reservoir and to its amount of makeup water,
Only need external more easy system.
Preferably, reactor circuit is additionally provided with melt pit recirculation line, and pipeline connection is located at where reactor vessel
The melt pit of workshop after reconnecting pump, accesses coolant reservoir.When cut accident occurs, from reactor vessel spray or
The coolant gushed out, it will gradually converge in melt pit.After especially the long period occurs for accident, reactor vessel is also at often
Pressure condition, the then continually water of piii reactor container from coolant reservoir will be from broken after cooling fuel assembly
Mouth goes out to gush out in melt pit, is at this moment squeezed into the water in melt pit in coolant reservoir, Ke Yishi by melt pit in pipeloop
Now effluent recycles, and reduces the yield of radioactive wastewater.
Preferably, it is provided with external grouting socket in coolant reservoir, is accessed for external system.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For system disclosed in embodiment
For, due to corresponding to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
Those skilled in the art can use different methods to achieve the described function each specific application, but
It is this realize it is not considered that beyond the scope of the utility model.
Obviously, it is practical new without departing from this can to carry out various modification and variations to utility model by those skilled in the art
The spirit and scope of type.If in this way, these modifications and variations of the present invention belong to the utility model claims and its
Within the scope of equivalent technologies, then the utility model is also intended to including these modification and variations.
Claims (9)
1. a kind of reactor circuit, which is characterized in that the reactor circuit includes reactor vessel, a secondary circuit heat exchange
Device, throttling set, coolant reservoir, coolant pump,
Wherein, the reactor vessel, a secondary circuit heat exchanger, throttling set, coolant reservoir and coolant pump are logical
Pipeline is crossed to be connected in sequence.
2. reactor circuit as described in claim 1, which is characterized in that the secondary circuit heat exchanger and coolant storage
Case, positioned at the over top of the reactor vessel.
3. reactor circuit as described in claim 1, which is characterized in that the coolant in the coolant reservoir is described
It boosts under the driving of coolant pump, pipe is entered by coolant and flows into the reactor vessel；By core in the reactor vessel
It heats up after fuel heating, by coolant outlet pipe, flows through the secondary circuit heat exchanger, transfer heat to intermediate loop drop
Temperature, then the throttling set is flowed into, the coolant reservoir is flowed into after being depressurized to an atmospheric pressure by the throttling set.
4. reactor circuit as described in claim 1, which is characterized in that the coolant reservoir is communicated with the atmosphere.
5. reactor circuit as described in claim 1, which is characterized in that the reactor circuit further includes pressure relief pipeline, institute
Pressure relief pipeline connection coolant outlet pipe and the coolant reservoir are stated, is filled with the secondary circuit heat exchanger and the throttling
It sets to form parallel connection.
6. reactor circuit as claimed in claim 5, which is characterized in that on the pressure relief pipeline, be provided with normally closed adjusting
Valve.
7. reactor circuit as claimed in claim 5, which is characterized in that the coolant enters pipe and coolant pump and cooling
The quantity of agent outlet pipe, a secondary circuit heat exchanger and throttling set is two sets or more.
8. reactor circuit as described in claim 1, which is characterized in that be provided with heat exchange in the coolant reservoir
Device, the heat exchanger are connected to by pipeline with external cooling system.
9. reactor circuit as described in claim 1, which is characterized in that the reactor circuit is additionally provided with melt pit recycling
Pipeline, the melt pit of workshop, after reconnecting pump, is accessed described cold where the melt pit recirculation line connection is located at reactor vessel
But agent storage bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701470.4U CN208507204U (en) | 2018-05-11 | 2018-05-11 | A kind of reactor circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701470.4U CN208507204U (en) | 2018-05-11 | 2018-05-11 | A kind of reactor circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507204U true CN208507204U (en) | 2019-02-15 |
Family
ID=65299348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820701470.4U Active CN208507204U (en) | 2018-05-11 | 2018-05-11 | A kind of reactor circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417282A (en) * | 2018-05-11 | 2018-08-17 | 上海核工程研究设计院有限公司 | A kind of loop structure of reactor circuit and a kind of low-temperature heat supply reactor with the reactor circuit |
-
2018
- 2018-05-11 CN CN201820701470.4U patent/CN208507204U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417282A (en) * | 2018-05-11 | 2018-08-17 | 上海核工程研究设计院有限公司 | A kind of loop structure of reactor circuit and a kind of low-temperature heat supply reactor with the reactor circuit |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |