CN108775569A - A kind of steam generator for metal fast reactor - Google Patents
A kind of steam generator for metal fast reactor Download PDFInfo
- Publication number
- CN108775569A CN108775569A CN201810416545.9A CN201810416545A CN108775569A CN 108775569 A CN108775569 A CN 108775569A CN 201810416545 A CN201810416545 A CN 201810416545A CN 108775569 A CN108775569 A CN 108775569A
- Authority
- CN
- China
- Prior art keywords
- tube
- steam generator
- bobbin carriage
- shell
- container body
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/06—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of steam generator for metal fast reactor, the steam generator includes container body and the straight tube heat exchanger tube that is arranged in container body, shell side and tube side are formd in container body, secondary side-entrance, a side outlet, a side-entrance, secondary side outlet are set from bottom to top on container body, high-temperature medium enters shell side by a side-entrance, after supercooling, exports and export from primary side；Cryogenic media enters tube side by secondary side-entrance, after heating, exports and exports from secondary side.The present invention is by high temperature fluent metal coolant flow through shell side, high pressure low temperature coolant flow is through tube side, on the basis of guarantee steam generator required safety and reliability, the manufacturing cost and manufacture difficulty of steam generator are reduced, the economy of steam generator entirety is improved.
Description
Technical field
The present invention relates to nuclear power plant equipment technical field more particularly to a kind of steam generators for metal fast reactor.
Background technology
The steam generator used in nuclear reactor generally uses titanium tube as anti-corrosion layer, since titanium tube uses temperature
Degree hereinafter, significantly limit the use temperature range of such reactor, will be unable to be suitable for metal derby heap to lead at 425 degrees Celsius
Domain, and the cost of heat exchanger is increased, common U heat exchange is due to needing as anti-corrosion layer using titanium tube
Anti-vibration strip is arranged in bending part, and since liquid metal viscosity is larger, and easily corrodes heat exchanger tube, if liquid metal is in pipe
It is flowed in journey, flow of liquid metal dynamic resistance will be caused to increase, the requirement to liquid metal transfer pump improves, and influences liquid metal
Natural-circulation capacity, and multilayer sleeve structure be used for steam generator, it may be difficult to carry out inservice inspection work, and due to multilayer
The presence of tube sheet will be unable to carry out the plugging maintenance work of heat exchanger heat-exchanging tube.
Invention content
Technical problem to be solved by the present invention lies in providing one kind can prevent heat exchange tracheal rupture from causing first and second side
Coolant mutually mixes, and ensures the steam generator of the integrality of radioactivity boundary and pressure boundary.
In order to solve the above technical problem, the present invention provides a kind of steam generators for metal fast reactor comprising holds
Device main body and the straight tube heat exchanger tube being arranged in container body form shell side and tube side, the container in the container body
Secondary side-entrance, a side outlet, a side-entrance, secondary side outlet are set from bottom to top in main body,
High-temperature medium enters shell side by a side-entrance, after supercooling, exports and exports from the primary side；
Cryogenic media enters the tube side by the secondary side-entrance, after heating, exports and exports from the secondary side.
Wherein, the straight tube pipe wall of heat exchange pipe is at least bonded by the tube wall of the tube wall of first layer pipe and second layer pipe.
Wherein, the first layer pipe and second layer pipe are made of nickel-base alloy or stainless steel.
Wherein, the steam generator further includes the first tube sheet and the second tube sheet, and first tube sheet and described second are managed
Plate is welded on the container body, the both ends of the heat exchanger tube respectively with first tube sheet and second Tube-sheet Welding
Connection.
Wherein, the steam generator further includes the first bobbin carriage and the second bobbin carriage, and first bobbin carriage is managed with described first
Plate connects, and second bobbin carriage is connect with second tube sheet.
Wherein, first bobbin carriage also sets up the first bobbin carriage shell, and second bobbin carriage also sets up the second bobbin carriage shell, institute
It states secondary side-entrance to be set on the second bobbin carriage shell, the secondary side outlet is set on the first bobbin carriage shell.
Wherein, form first chamber between first tube sheet and the first bobbin carriage shell, second tube sheet and
Second chamber is formd between the second bobbin carriage shell, the second chamber, heat exchanger tube, first chamber form the pipe
Journey；The container body, the first tube sheet, the second tube sheet constitute the shell side.
Wherein, manhole flange is respectively set on the first bobbin carriage shell and the second bobbin carriage shell, for connecting people
Blind patch.
Wherein, it is additionally provided with expansion joint on the container body.
The advantageous effect of the embodiment of the present invention is：1, heat exchanger tube of the invention uses straight tube heat exchanger tube, solves U-shaped change
The heat pipe steam generator problem low with bushing type steam generator Residual heat removal heat exchanger power density, sleeve heat exchange pipe can not
Sealing position is excessive existing for the problem of plugging repair and inservice inspection and the remaining row's heat exchanger of bushing type Natural Circulation, heat exchange
The problem of device disclosure risk increases；2, the present invention flows through shell side by high-temperature medium, and cryogenic media flows through tube side, reduces shell side stream
Speed, weakens the degree of wear of liquid metal exchange thermotube wall and chamber wall, and reduces the flowing resistance of liquid metal coolant
Power reduces shell-side pressure drop, promotes its natural-circulation capacity；3, the present invention by using outer layer stainless steel heat exchanger tube as superfluous
Remaining layer anticorrosion solves the problems, such as that titanium tube corrosion-resistant coating is in strong oxidation in liquid metal fast reactor temperature range of operation,
Stainless steel is used simultaneously, improves the processability of heat exchanger tube, and then the manufacture for further decreasing steam generator is difficult
Degree and cost, steam generator of the invention can prevent heat exchange tracheal rupture from a secondary side coolant being caused mutually to mix, ensure radiation
The integrality on property boundary and pressure boundary.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram of the steam generator composed structure of the present invention.
Fig. 2 is the structural schematic diagram of the steam generator heat exchange tube of the present invention.
Wherein, the first bobbin carriages of 1-, the first tube sheets of 2-, the middle levels 3- shell, 4- heat exchanger tubes, the second tube sheets of 5-, the second bobbin carriages of 6-,
7- covers plate for manhole, bis- side-entrances of 8-, side outlet of 9-, 10- expansion joints, side-entrance of 11-, bis- side outlets of 12-,
13- first chambers, 14- shell sides, 15- second chambers, 4-1 inner tubes, 4-2- intermediate tubes, 4-3 outer tubes.
Specific implementation mode
The explanation of following embodiment is refer to the attached drawing, can be to the specific embodiment implemented to the example present invention.
As shown in Figure 1, a kind of steam generator for metal fast reactor, the steam generator includes container body, sets
The heat exchanger tube 4 being placed in container body, be provided with from bottom to top on the container body 8, side outlets 9 of secondary side-entrance,
Side-entrance 11, secondary side outlet 12 form shell side 14 and tube side in the container body, and high-temperature medium passes through described one
Secondary side-entrance 11 enters shell side 14, after supercooling, is exported from a side outlet 9；Cryogenic media passes through the secondary side
Import 8 enters the tube side, after heating, is exported from the secondary side outlet 12.
Wherein, high-temperature medium refers to liquid metal coolant, and cryogenic media refers to cryogenic coolant.
Wherein, the container body includes layer shell, middle level shell 3 and lower layer's shell.
Wherein, 4 structure type of the heat exchanger tube is straight tube heat exchanger tube, and tube wall is bonded by bilayer or multilayer tube wall, is managed
Wall selection is stainless steel, nickel-base alloy etc., can be worked normally at a high temperature of 400-600 degrees Celsius.
The steam generator further includes the first tube sheet 2 and the second tube sheet 5, and first tube sheet, 2 and second tube sheet 5 welds
It is connected in succession on the container body, the upper and lower ends of heat exchanger tube 4 are swollen with first tube sheet 2 and second tube sheet 5 respectively
Weldering connection.
The steam generator further includes the first bobbin carriage 1 and the second bobbin carriage 6, and the first bobbin carriage 1 and the welding of the first tube sheet 2 connect
It connecing, second bobbin carriage 6 is welded to connect with second tube sheet 5, wherein the first bobbin carriage 1 also sets up the first bobbin carriage shell, and second
Bobbin carriage 6 also sets up the second bobbin carriage shell, and secondary side outlet 12 is arranged on the first bobbin carriage shell, is arranged on the second bobbin carriage shell secondary
Side-entrance 8, wherein the first bobbin carriage shell is the layer shell of container body, the second bobbin carriage shell is the lower layer of container body
Shell.
Wherein, first chamber 13, the second bobbin carriage shell are formd between first tube sheet, 2 and first bobbin carriage shell
Second chamber 15 is formd between second tube sheet 5.
Specifically, the middle level shell 3 of first tube sheet 2, the second tube sheet 5 and container body constitutes shell side 14, the
One chamber 13, heat exchanger tube and second chamber 15 constitute tube side, and high-temperature medium enters the shell side by a side-entrance 11,
After supercooling, reflux reactor core is exported from a side outlet 9；The cryogenic media is entered by the secondary side-entrance 8
Second chamber 15 distributes to each heat exchanger tube, first chamber 13 is converged in after heating, then via secondary side outlet 12
Export.Shell side 14 is flowed through by using liquid metal coolant, cryogenic coolant flows through tube side, reduces by 14 flow velocity of shell side, weakens
Liquid metal exchanges the erosion degree of thermotube wall and chamber wall, and lowers the flow resistance of liquid metal coolant, reduces
14 pressure drop of shell side, promotes its natural-circulation capacity.
Wherein, since the first tube sheet 2 and the second tube sheet 5 are welded on the middle level shell 3 of the container body, thus it is described
Shell side 14 is all-welded structure form, after the oxidation explosion or radiation that can prevent liquid metal coolant from occurring at high temperature
The leakage of extremely toxic substance.
The opening at the top of first bobbin carriage 1 is provided with manhole flange, and the bottom opening of second bobbin carriage 6 is provided with
Manhole flange, manhole flange is for connecting cover plate for manhole 7.
Expansion joint 10 is additionally provided on the container body, to compensate the differential expansion between heat exchanger tube and shell.
It is illustrated in figure 2 the structural schematic diagram of the steam generator heat exchange tube of the present invention, the heat exchanger tube in Fig. 1 is three-layer pipe
Three-layer pipe wall straight tube heat exchanger tube made of wall fitting, wherein outer tube 4-3, intermediate tube 4-2, inner tube 4-1 by nickel-base alloy or
Stainless steel is made, and specifically, wherein outer tube 4-3 and inner tube 4-1 is made of stainless steel, specifically, by austenitic stainless steel
It is made, intermediate tube 4-2 is made of nickel-base alloy, and wherein the 3 material type selecting of middle level shell of the steam generator is also austenite
Stainless steel.
By using stainless steel heat exchanger tube as redundant layer anticorrosion, solves titanium tube and be in liquid as corrosion-resistant coating
Within the scope of state metal derby stack operating temperature the problem of strong oxidation, simultaneously as using stainless steel, heat exchanger tube is improved
Processability, and then further decrease the manufacture difficulty and manufacturing cost of steam generator.
It blocks Crack of Heat Exchange Tube axially to expand path using tube wall binding face, reduces steam generator and heat exchange tracheal rupture occurs
The probability of accident increases the safety and reliability of steam generator, and a secondary coolant is avoided mutually to mix, and maintains primary Ioops radiation
Property boundary integrality, and then increase the intrinsic safety of entirety of metal fast reactor.
Implementing the present invention has as follows a little：1, heat exchanger tube of the invention uses straight tube heat exchanger tube, solves U heat exchange
The steam generator problem low with bushing type steam generator Residual heat removal heat exchanger power density, sleeve heat exchange pipe can not pluggings
Sealing position is excessive existing for the problem of repair and inservice inspection and the remaining row's heat exchanger of bushing type Natural Circulation, and heat exchanger is let out
It divulges a secret dangerous the problem of increasing；2, the present invention flows through shell side by high-temperature medium, and cryogenic media flows through tube side, reduces shell side flow velocity,
Weaken the degree of wear of liquid metal exchange thermotube wall and chamber wall, and reduce the flow resistance of liquid metal coolant,
Shell-side pressure drop is reduced, its natural-circulation capacity is promoted；3, the present invention by using outer layer stainless steel heat exchanger tube as redundancy
Layer anticorrosion, solves the problems, such as that titanium tube corrosion-resistant coating is in strong oxidation in liquid metal fast reactor temperature range of operation, together
Shi Caiyong stainless steels, improve the processability of heat exchanger tube, and then further decrease the manufacture difficulty of steam generator
And cost, steam generator of the invention can prevent heat exchange tracheal rupture from a secondary side coolant being caused mutually to mix, ensure radioactivity
The integrality on boundary and pressure boundary.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (9)
1. a kind of steam generator for metal fast reactor, it is characterised in that：Including container body and it is arranged in container body
Straight tube heat exchanger tube, form shell side and tube side in the container body, secondary side be set from bottom to top on the container body
Import, a side outlet, a side-entrance, secondary side outlet；
High-temperature medium enters shell side by a side-entrance, after supercooling, exports and exports from the primary side；
Cryogenic media enters the tube side by the secondary side-entrance, after heating, exports and exports from the secondary side.
2. a kind of steam generator for metal fast reactor according to claim 1, it is characterised in that：The straight tube heat exchange
Tube wall is at least bonded by the tube wall of the tube wall of first layer pipe and second layer pipe.
3. a kind of steam generator for metal fast reactor according to claim 2, it is characterised in that：The first layer
Pipe, second layer pipe are made of nickel-base alloy or stainless steel.
4. a kind of steam generator for metal fast reactor according to claim 1, it is characterised in that：The steam generation
Device further includes the first tube sheet and the second tube sheet, and first tube sheet and second tube sheet are welded on the container body,
The both ends of the heat exchanger tube are connect with first tube sheet and second Tube-sheet Welding respectively.
5. a kind of steam generator for metal fast reactor according to claim 4, it is characterised in that：The steam generation
Device further includes the first bobbin carriage and the second bobbin carriage, and first bobbin carriage is connect with first tube sheet, second bobbin carriage with it is described
Second tube sheet connects.
6. a kind of steam generator for metal fast reactor according to claim 5, it is characterised in that：First bobbin carriage
The first bobbin carriage shell is also set up, second bobbin carriage also sets up the second bobbin carriage shell, and the secondary side-entrance is set to described
On two bobbin carriage shells, the secondary side outlet is set on the first bobbin carriage shell.
7. a kind of steam generator for metal fast reactor according to claim 6, it is characterised in that：First tube sheet
First chamber is formd between the first bobbin carriage shell, is formd between second tube sheet and the second bobbin carriage shell
Second chamber, the second chamber, heat exchanger tube, first chamber form the tube side；The container body, the first tube sheet,
Two tube sheets form the shell side.
8. a kind of steam generator for metal fast reactor according to claim 6, it is characterised in that：First bobbin carriage
Manhole flange is respectively set on shell and the second bobbin carriage shell, for connecting cover plate for manhole.
9. a kind of steam generator for metal fast reactor according to claim 1, it is characterised in that：The container body
On also set up expansion joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810416545.9A CN108775569A (en) | 2018-05-03 | 2018-05-03 | A kind of steam generator for metal fast reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810416545.9A CN108775569A (en) | 2018-05-03 | 2018-05-03 | A kind of steam generator for metal fast reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108775569A true CN108775569A (en) | 2018-11-09 |
Family
ID=64026956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810416545.9A Pending CN108775569A (en) | 2018-05-03 | 2018-05-03 | A kind of steam generator for metal fast reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775569A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500575A (en) * | 2019-08-26 | 2019-11-26 | 鄂尔多斯市君正能源化工有限公司热电分公司 | One kind is had loose bowels tube boot |
| CN111664427A (en) * | 2019-03-09 | 2020-09-15 | 孟想 | Design scheme of ultra-high temperature and ultra-high pressure pore channel type heat exchanger/evaporator |
| CN112071453A (en) * | 2019-05-25 | 2020-12-11 | 孟想 | Design scheme of direct-current countercurrent pore channel type heat exchanger/evaporator |
| RU2787137C1 (en) * | 2022-04-19 | 2022-12-29 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | Steam generator of a reactor with a liquid metal coolant |
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| JPS53131394A (en) * | 1977-04-22 | 1978-11-16 | Hitachi Ltd | Safety operation of liquid metal cooling fast reactor |
| JP2003014883A (en) * | 2001-07-05 | 2003-01-15 | Kawasaki Heavy Ind Ltd | Double pipe structure in steam generator |
| CN202105561U (en) * | 2011-03-03 | 2012-01-11 | 郑达伟 | Detachable tube array falling film absorber |
| CN102778159A (en) * | 2011-05-13 | 2012-11-14 | 李文涛 | Anticorrosion solid-state pressure-resistant omni-directional heat tube |
| CN204787952U (en) * | 2015-05-24 | 2015-11-18 | 三门峡化工机械有限公司 | Floating tube sheet heat exchanger |
| CN106531241A (en) * | 2016-12-30 | 2017-03-22 | 中国科学院合肥物质科学研究院 | Double-wall-pipe heat exchanging equipment for liquid metal reactor and broken-pipe detecting and maintaining method |
-
2018
- 2018-05-03 CN CN201810416545.9A patent/CN108775569A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131394A (en) * | 1977-04-22 | 1978-11-16 | Hitachi Ltd | Safety operation of liquid metal cooling fast reactor |
| JP2003014883A (en) * | 2001-07-05 | 2003-01-15 | Kawasaki Heavy Ind Ltd | Double pipe structure in steam generator |
| CN202105561U (en) * | 2011-03-03 | 2012-01-11 | 郑达伟 | Detachable tube array falling film absorber |
| CN102778159A (en) * | 2011-05-13 | 2012-11-14 | 李文涛 | Anticorrosion solid-state pressure-resistant omni-directional heat tube |
| CN204787952U (en) * | 2015-05-24 | 2015-11-18 | 三门峡化工机械有限公司 | Floating tube sheet heat exchanger |
| CN106531241A (en) * | 2016-12-30 | 2017-03-22 | 中国科学院合肥物质科学研究院 | Double-wall-pipe heat exchanging equipment for liquid metal reactor and broken-pipe detecting and maintaining method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664427A (en) * | 2019-03-09 | 2020-09-15 | 孟想 | Design scheme of ultra-high temperature and ultra-high pressure pore channel type heat exchanger/evaporator |
| CN112071453A (en) * | 2019-05-25 | 2020-12-11 | 孟想 | Design scheme of direct-current countercurrent pore channel type heat exchanger/evaporator |
| CN110500575A (en) * | 2019-08-26 | 2019-11-26 | 鄂尔多斯市君正能源化工有限公司热电分公司 | One kind is had loose bowels tube boot |
| CN110500575B (en) * | 2019-08-26 | 2021-07-06 | 鄂尔多斯市君正能源化工有限公司热电分公司 | Casing for casing of herba lysimachiae |
| RU2787137C1 (en) * | 2022-04-19 | 2022-12-29 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | Steam generator of a reactor with a liquid metal coolant |
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Application publication date: 20181109 |