CN207116015U - Air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system - Google Patents
Air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system Download PDFInfo
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- CN207116015U CN207116015U CN201720901742.0U CN201720901742U CN207116015U CN 207116015 U CN207116015 U CN 207116015U CN 201720901742 U CN201720901742 U CN 201720901742U CN 207116015 U CN207116015 U CN 207116015U
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- sodium
- air cooler
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- nuclear power
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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
Air cooler disclosed in the utility model used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system, including：Bellows cylinder, the air inlet on bellows cylinder are connected with frequency conversion fan；The heat-exchanging tube bundle being arranged in bellows cylinder, heat-exchanging tube bundle are connected outside bellows cylinder and with sodium import concetrated pipe and sodium outlet header respectively into and out of end；It is on each heat exchange pipe external surface, is wound with electrical heating wire on sodium import set tube outer surface and on sodium outlet header outer surface.The utility model is before air cooler enters sodium; preheated using electrical heating wire exchange heat pipe, sodium import concetrated pipe and sodium outlet header; after sodium temperature rise to assigned temperature, start into sodium, sodium caused by effectively preventing air cooler temperature too low blocks and infringement of the thermal shock to equipment; sodium fluid temperature (F.T.) declines in pipe during shutdown; open heating electricity and pull maintenance certain temperature, ensure that sodium fluid is in and melt molten state, heating electricity is also opened when arranging sodium and is pulled; reduce sodium fluid viscosity, be easily drained sodium.
Description
Technical field
Air cooler technical field is the utility model is related to, more particularly to used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system
Air cooler.The air cooler can be additionally used in the heat exchange of the high temperature fluid of high-temperature molten salt heat exchange.
Background technology
In fast reactor, but it is best with sodium-cooled fast reactor performance, and 18 sodium-cooled fast reactors, China Experiment Fast Reactor were built in the whole world
(CEFR) it is also sodium-cooled fast reactor.Compared with Lead cooled fast breeder reactor and gas cooled fast reactor, sodium-cooled fast reactor is with the obvious advantage.First, sodium atom quality
Greatly, quality is not lost after neutron collision；Second, sodium absorption neutron is few, not loss of energy；3rd, thermal conductivity is good, it is easy to
Energy is taken away, solves the problems of excessive heat that reactor is most afraid of；4th, the fusing point of sodium is 98 DEG C, but 890 DEG C of boils up till.
It need not be pressurizeed in usual 500 DEG C~600 DEG C of working environment, it is safe.In CEFR, the reactor of 8 rice diameters is used
260 tons of Liquid Sodium, it is only necessary to which the shell of two layers of 25 millimeters of outer walls is protected.It can be said that sodium medium is fast reactor best at present
Cooling agent.
Air cooler is one of capital equipment of the sodium pump circulatory system, is being carried out for exporting caused by the sodium pump circulatory system
Heat so that the sodium temperature into the sodium circulatory system is no more than required higher limit.
Utility model content
Technical problem to be solved in the utility model is asking for sodium-cooled fast reactor nuclear power station intermediate loop sodium cooling
Inscribe and the air cooler used in a kind of sodium-cooled fast reactor nuclear power station sodium pump circulatory system simple in construction, heat release effect is good is provided.
Technical problem to be solved in the utility model can be achieved through the following technical solutions：
Air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system, including：
One bellows cylinder, the bellows cylinder has to be connected into and out of air port, the air inlet with a frequency conversion fan, frequency conversion
Blower fan blasts air in the bellows cylinder；
The heat-exchanging tube bundle being arranged in the bellows cylinder, the heat-exchanging tube bundle are located at the bellows cylinder into and out of end
It is connected outside and with sodium import concetrated pipe and sodium outlet header respectively；Characterized in that,
Export and gather with sodium on each heat exchange pipe external surface in the heat-exchanging tube bundle, on sodium import set tube outer surface
It is wound with electrical heating wire on tube outer surface, the electrical heating wire on all heat exchanger tubes draws the bellows cylinder by heating cable tail
And it is connected with heating power supply.
In a preferred embodiment of the present utility model, it is all provided with the sodium import concetrated pipe and sodium outlet header
Thermocouple is equipped with, is flowed into detect sodium, the temperature of outflow.
In a preferred embodiment of the present utility model, the thermocouple is clamping hoop type tube-wall thermocouple.
In a preferred embodiment of the present utility model, the electrical heating wire is coated with stainless steel protection set.
In a preferred embodiment of the present utility model, used between the heating cable tail and the bellows cylinder
Encapsulation process.
In a preferred embodiment of the present utility model, heat-insulation layer is set in the outer surface of the bellows cylinder.
In a preferred embodiment of the present utility model, the heat exchanger tube is U heat exchange, hot sodium by pipe side by,
Cold air is plunderred the heat exchanger tube and exchanged heat by shell-side is horizontal, and cold fluid and hot fluid flow direction is mutually perpendicular to be in cross-current.
In a preferred embodiment of the present utility model, the heat-exchanging tube bundle is less than internal pipeline into and out of end position
Position.
In a preferred embodiment of the present utility model, the heat-exchanging tube bundle into and out of end with the sodium import set
It is welded to connect between pipe, sodium outlet header using butt weld mode.
In a preferred embodiment of the present utility model, the sodium import concetrated pipe, sodium outlet header are circle
Pipeline.
In a preferred embodiment of the present utility model, the distinguished and admirable road rectangular cross-section of bellows inner barrel is described
Air inlet and air outlet are by bearing circle transition.
As a result of technical scheme as above, the utility model is on each heat exchange pipe external surface, sodium import concetrated pipe
On outer surface and electrical heating wire is wound with sodium outlet header outer surface, before air cooler enters sodium, utilizes electrical heating wire heat exchanging
Pipe, sodium import concetrated pipe and sodium outlet header are preheated, and after heat exchanger tube temperature rise to assigned temperature, start, into sodium, to have
Sodium caused by effect ground prevents air cooler temperature too low blocks and infringement of the thermal shock to equipment, during shutdown in pipe under sodium fluid temperature (F.T.)
Drop, to open heating electricity and pull maintenance certain temperature, ensure that sodium fluid is in and melt molten state, heating electricity is also opened when arranging sodium and is pulled,
Reduce sodium fluid viscosity, be easily drained sodium.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model sodium-cooled fast reactor nuclear power station intermediate loop sodium cooling air cooler.
Fig. 2 is Fig. 1 left view.
Embodiment
Referring to accompanying drawing, the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system shown in figure, including：One bellows
Cylinder 100, the bellows cylinder 100 have air inlet 110 and air outlet 120, and air inlet 110 (does not show with a frequency conversion fan in figure
Go out) connect, frequency conversion fan blasts air in bellows cylinder 100.The distinguished and admirable road rectangular cross-section in the inside of bellows cylinder 100, air intake
Mouthfuls 110 and air outlet 120 by bearing circle transition, using during such design in order to reduce windage, stable wind speed.
Heat-exchanging tube bundle 200 is installed in the centre position of bellows cylinder 100, heat-exchanging tube bundle 200 is located at bellows into and out of end
Cylinder 100 is outer and welds company using butt weld mode more between sodium import concetrated pipe 210 and sodium outlet header 220 respectively
Connect.Heat transfer tube wall in heat-exchanging tube bundle 200 is smooth, meanwhile, heat exchanger tube sodium import concetrated pipe 210, sodium in heat-exchanging tube bundle 200
Outlet header 220 is circular pipe, can so reduce the flow resistance of sodium fluid.
Heat-exchanging tube bundle 200 is less than internal pipeline position into and out of end position, and it is thorough to arrange sodium during facilitating shutdown, during shutdown,
Sodium in heat exchanger tube is discharged by sodium import concetrated pipe 210.
Heat exchanger tube in heat-exchanging tube bundle 200 is U heat exchange, hot sodium by pipe side by, cold air by shell-side it is horizontal plunder it is described
Heat exchanger tube is exchanged heat, and cold fluid and hot fluid flow direction is mutually perpendicular to be in cross-current.
The characteristics of the utility model is：In order to prevent that temperature is too low, prevent sodium from blocking, it is each in heat-exchanging tube bundle 200
Electrical heating wire is wound with heat exchange pipe external surface, on the outer surface of sodium import concetrated pipe 210 and on the outer surface of sodium outlet header 220
(not shown), electrical heating wire on heat exchanger tube by heat cable tail draw bellows cylinder 100 and with heating power supply (figure
Not shown in) connection.Stainless steel protection set (not shown), heating cable tail and bellows cylinder are coated with electrical heating wire
Encapsulation process is used between body 100.
Before air cooler enters sodium, exchange heat pipe, sodium import concetrated pipe and sodium outlet header using electrical heating wire and carry out in advance
Heat, after sodium temperature rise to assigned temperature, start into sodium, sodium caused by effectively preventing air cooler temperature too low blocks and heat punching
Hit the infringement to equipment, sodium fluid temperature (F.T.) declines in pipe during shutdown, to open heating electricity and pull maintenance certain temperature, ensure sodium fluid
In molten molten state, heating electricity is also opened when arranging sodium and is pulled, reduces sodium fluid viscosity, is easily drained sodium.
Other the utility model be provided with sodium import concetrated pipe 210 and sodium outlet header 220 thermocouple 211,
221, flowed into detect sodium, the temperature of outflow.Thermocouple 211,221 is clamping hoop type tube-wall thermocouple.
The utility model is provided with heat-insulation layer 130 in the outer surface of bellows cylinder 100.
Claims (11)
1. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system, including：
One bellows cylinder, the bellows cylinder has to be connected into and out of air port, the air inlet with a frequency conversion fan, frequency conversion fan
Air is blasted in the bellows cylinder；
The heat-exchanging tube bundle being arranged in the bellows cylinder, the heat-exchanging tube bundle are located at outside the bellows cylinder simultaneously into and out of end
It is connected respectively with sodium import concetrated pipe and sodium outlet header；Characterized in that,
On each heat exchange pipe external surface in the heat-exchanging tube bundle, on sodium import set tube outer surface and outside sodium outlet header
Be wound with electrical heating wire on surface, the electrical heating wire on all heat exchanger tubes by heat cable tail draw the bellows cylinder and with
Heating power supply connects.
2. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that in institute
State and be provided with thermocouple on sodium import concetrated pipe and sodium outlet header, flowed into detect sodium, the temperature of outflow.
3. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 2, it is characterised in that described
Thermocouple is clamping hoop type tube-wall thermocouple.
4. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that described
Electrical heating wire is coated with stainless steel protection set.
5. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that described
Encapsulation process is used between heating cable tail and the bellows cylinder.
6. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that in institute
The outer surface for stating bellows cylinder sets heat-insulation layer.
7. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that described
Heat exchanger tube is U heat exchange, and hot sodium is plunderred the heat exchanger tube and exchanged heat by, cold air by pipe side by shell-side is horizontal, cold fluid and hot fluid
Flow direction is mutually perpendicular to be in cross-current.
8. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that described
Heat-exchanging tube bundle is less than internal pipeline position into and out of end position.
9. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that described
Heat-exchanging tube bundle is welded to connect into and out of between end and the sodium import concetrated pipe, sodium outlet header using butt weld mode.
10. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that institute
State sodium import concetrated pipe, sodium outlet header is circular pipe.
11. the air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system as claimed in claim 1, it is characterised in that institute
The distinguished and admirable road rectangular cross-section of bellows inner barrel is stated, the air inlet and air outlet are by bearing circle transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720901742.0U CN207116015U (en) | 2017-07-24 | 2017-07-24 | Air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720901742.0U CN207116015U (en) | 2017-07-24 | 2017-07-24 | Air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116015U true CN207116015U (en) | 2018-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720901742.0U Active CN207116015U (en) | 2017-07-24 | 2017-07-24 | Air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207116015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107610787A (en) * | 2017-07-24 | 2018-01-19 | 上海妍杰环境设备有限公司 | Air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system |
| CN109817355A (en) * | 2018-12-29 | 2019-05-28 | 中核霞浦核电有限公司 | A kind of cylindrical body sodium-sodium-gas integrated heat exchanger |
-
2017
- 2017-07-24 CN CN201720901742.0U patent/CN207116015U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107610787A (en) * | 2017-07-24 | 2018-01-19 | 上海妍杰环境设备有限公司 | Air cooler used in the sodium-cooled fast reactor nuclear power station sodium pump circulatory system |
| CN109817355A (en) * | 2018-12-29 | 2019-05-28 | 中核霞浦核电有限公司 | A kind of cylindrical body sodium-sodium-gas integrated heat exchanger |
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