CN102592690A - Floating-head type lead-bismuth heat exchanging device and heat exchanging method - Google Patents
Floating-head type lead-bismuth heat exchanging device and heat exchanging method Download PDFInfo
- Publication number
- CN102592690A CN102592690A CN2012100262594A CN201210026259A CN102592690A CN 102592690 A CN102592690 A CN 102592690A CN 2012100262594 A CN2012100262594 A CN 2012100262594A CN 201210026259 A CN201210026259 A CN 201210026259A CN 102592690 A CN102592690 A CN 102592690A
- Authority
- CN
- China
- Prior art keywords
- heat
- floating head
- floating
- heat exchanging
- exchanger rig
- 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
Links
Images
Classifications
-
- 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
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to the field of nuclear energy heat exchanging equipment, particularly relates to a floating-head type lead-bismuth heat exchanging device and a heat exchanging method and the device is capable of achieving bilateral flow heat exchanging. An upper floating head is arranged at the upper end of a cylinder steel tube shell wrapped by steel plates, a floating head shell of the floating head is fixed at the lower end of the cylinder steel tube shell, primary side floating-head heat exchanging pipes are supported on the floating pipe plate in the cylinder steel tube shell, a secondary side cooling agent heat exchanging shell is fixed in the inner wall of the cylinder steel tube shell so that an interlayer heat exchanging channel is formed; and counter-flow heat exchanging and parallel-flow heat exchanging can be used, wherein when side lead-bismuth alloy fluid passes through a side floating-head heat exchanging pipe channel for one time, cooling water passes by the interlayer heat exchanging channel for one time. The lead-bismuth alloy fluid and the cooling agent are used for heating exchanging so that the heat produced by the acceleration driven system (ADS) reactor can be taken away. The device is provided with a floating head so that the stress expansion caused by temperature difference is prevented; the device has the characteristics of high heating exchanging efficiency, compact structure, good heat exchanging performance, capability of enduring large temperature difference and having little limit to the temperature of the cooling agent.
Description
Technical field
The invention belongs to nuclear energy heat-exchange apparatus field, plumbous bismuth heat-exchanger rig of particularly a kind of floating head type and heat-exchange method.Specifically, comprising two kinds of heat transfer flow modes of forced circulation and Natural Circulation specifically, is a kind of device of realizing flowing heat transfer at bilateral.Lead bismuth alloy by flowing in the plumbous bismuth heat-exchanger rig tube side passes to shell side flowing coolant water, and takes away heat by coolant water, accomplishes a circulation, takes away the heat that produces at the ADS subcritical reactor thus, to guarantee the normal safe operation of ADS system.
Background technology
Accelerator drive system ADS (accelerate driven system) is a kind of transmuting of nuclear waste efficiently technology.Its composition is: middle ability high current proton precessional magnetometer; Outer source neutron produces target; Subcritical reactor.Because what the ADS system coolant adopted is the lead bismuth alloy fluid, therefore, derives the heat that it has effectively.At present, also do not build up the ADS reactor in the world, loop research is abroad just experimentizing.No matter be the shell and tube Intermediate Heat Exchanger that European Experiment Test Accelerator drive system (XADS) is adopted; Or Italian CIRCE tube-sheet heat exchanger; The thimble tube heat interchanger that also has Italian NACIE Natural Circulation experimental loop design; Have a mind to big Libiee's Sa university again and adopt the steel flight to strengthen turbulent flow coaxial sleeve heat interchanger; Add the single casing type heat exchanging of the TALL of Sweden KTH (KTH) at last, most of double-pipe exchanger that adopts.Recycle design is mainly taked forced circulation, and Natural Circulation also more and more obtains paying attention to.Domestic present ADS research is at the early-stage, is carrying out plumbous bismuth experimental loop design studies.Wherein heat-exchanger rig is a very important link, and the realization that is directly connected to experimental loop moves successfully.
Double-pipe exchanger is as a kind of heat transmission equipment commonly used, and its advantage is simple in structure, is applicable to high-temperature, high pressure fluid, particularly the heat transfer of low capacity fluid.Major defect is that resistance to flow is big, and metal wastage is many, and volume is big, and floor area is big, so be used for the little heat interchanger of heat transfer area.In addition, when needs are taken away by the big entrained heat of flow of lead bismuth alloy, just need to surpass 10 meters high pipelines, processing and manufacturing is difficulty relatively.
Shell-and-tube heat exchanger is with its adaptability to temperature, pressure, medium, and durability and economy are occupied 70% leading position all the time in heat transmission equipment.Therefore the standardization effort of shell-and-tube heat exchanger is paid attention to by a plurality of industrially developed country in the world, is also paid attention to by ISO ISO (International Standards Organization).Shell-and-tube heat exchanger mainly contains fixed tube sheet type, U type tubular type and movable tube sheets heat exchanger.To the defective of fixed tube sheet type and U type tubular type, floating head type has been done structural improvement, and it is dead that the two ends tube sheet has only an end and shell to fix, and the other end is the housing slippage relatively, is called floating head.The thermal expansion of this heat exchanger shell and tube bank is freely; Can not produce advantages such as thermal (temperature difference) stress, and detachable extraction tube bank, heat exchanger tube is changed in maintenance, cleaning is restrained and the shell side dirt is convenient; Therefore; Movable tube sheets heat exchanger is used the most extensive, and in oil field collection dress storing and transporting system, 60%～70% heat interchanger is a movable tube sheets heat exchanger.Consider that the plumbous bismuth heat-exchanger rig end temperature difference is bigger; Have the bigger swelling pressure, and need take away the big entrained heat of flow of lead bismuth alloy, for better, more safely realizing effective transmission of heat; Just must design a kind of heat transfer unit (HTU), to adapt to the basic demand of ADS system better.
Summary of the invention
The purpose of this invention is to provide plumbous bismuth heat-exchanger rig of a kind of floating head type and heat-exchange method, it is characterized in that, this device is a kind ofly to carry out the device of flowing heat transfer at bilateral, has two kinds of flowing heat transfer modes of forced circulation and Natural Circulation;
The structure of the plumbous bismuth heat-exchanger rig of said floating head type is following: cylindrical steel shell 10 upper ends in that steel plate is bundled into connect upper cover 11; Upper cover 11 tops are the fixing secondary side coolant outlet 9 in primary side lead bismuth alloy fluid inlet 6, cylindrical steel shell 10 epimere sides fixedly; Cylindrical steel shell 10 hypomere sides are secondary side coolant water inlet 8 fixedly; Primary side heat exchanger tube 2 is supported on the floating tubesheet 15 in the cylindrical steel shell 10; Secondary side cooling medium heat exchange shell 4 is fixed on cylindrical steel shell 10 inwalls, forms the interlayer heat exchanger channels; The floating head housing of floating head 5 is fixed on cylindrical steel shell 10 lower ends, and primary side lead bismuth alloy fluid egress point 7 is fixed on the end central authorities of floating head housing 16.
The structure of said floating head is fixed on Floating Head Flange 12 tops for floating tubesheet 15 in floating head housing 16, and floating head 13 is fixed on Floating Head Flange 12 bottoms; Floating Head Flange 12 is not fixedly connected with floating head housing 16; Form floating head sliding space 14 between floating head 13 and the floating head housing 16.
Said cylindrical steel shell is flange with floating head housing 16 and upper cover 11 and is connected.
The arrangement mode of said primary side floating head heat exchanger tube on floating tubesheet is that arrangement angles is 30 ° equilateral triangle A, the corner equilateral triangle B that arrangement angles is 60 °, the square C that arrangement angles is 90 °, D arrangement of corner square or the concentric circles arrangement E that arrangement angles is 45 °; These arrangement modes use separately or combination is used.
Flowing of said lead bismuth alloy heat-exchanger rig two side liquids promptly can increase pumping unit in circuit system, make its forced circulation fluid interchange, also can in circuit system, not increase pumping unit, makes its Natural Circulation heat exchange, two kinds of heat transfer flow modes; Both sides fluid interchange form can be identical, also can be also different.
The floating head of said heat-exchanger rig moves up and down in the floating head sliding space, effectively prevents because the temperature difference brings stress to expand.
Said lead bismuth alloy heat-exchanger rig mechanical part material is aluminium alloy, austenitic steel or stupalith.
Said heat-exchanger rig is taked vertical layout or is taked horizontal layout.
The heat-exchange method of the plumbous bismuth heat-exchanger rig of said floating head type, heat transfer process is following: lead bismuth alloy fluid 1 flows into from primary side lead bismuth alloy fluid inlet 6; Carry out fluid interchange through primary side heat exchanger tube 2 and flowing coolant water 3 in secondary side coolant water inlet 8 inflow secondary side cooling medium heat exchange housings 4; Then, the lead bismuth alloy fluid 1 after the heat exchange flows out from primary side lead bismuth alloy fluid egress point 7, and the coolant water 3 after the heat exchange flows out from secondary side coolant outlet 9; Floating head moves up and down according to the difference of the temperature difference, realizes the derivation of heat thus, accomplishes a circulation.
Said fluid interchange is a counter-flow heat exchange, and promptly the lead bismuth alloy flow direction is opposite with secondary side coolant water flow direction, than adopting the downflow type heat exchange to bring higher heat transfer efficiency.
The invention has the beneficial effects as follows this device owing to be provided with floating head, have the advantages that to prevent to bring the stress expansion owing to the temperature difference.Characteristics such as this device has compact conformation, and heat exchange property is good, and the coolant temperature restriction is few realize promoting easily.The heat exchanger tube arrangement mode considers that the stress requirement is uniformly distributed with, compactness; And consider to clean and integrally-built requirement; Compare the heat transfer coefficient height with square arrangement, can save 15% tube sheet area, be applicable to and do not give birth to dirt or available chemical cleaning fouling and the higher operating mode of allowable pressure drop.
Description of drawings
Fig. 1 is the plumbous bismuth heat-exchanger rig of an a kind of floating head type synoptic diagram.
Fig. 2 is a pipeline of floating-head heat exchanger bundle arrangement mode synoptic diagram.
Fig. 3 is a movable tube sheets heat exchanger floating head sectional side view.
Embodiment
The present invention provides a kind of floating head type plumbous bismuth heat-exchanger rig.This lead bismuth alloy heat-exchanger rig mechanical part adopts aluminium alloy, austenitic steel or ceramic material, and the interior diameter of primary side floating head heat exchanger tube is 10mm-60mm; Cylindrical steel shell diameter of the housing is 100mm-600mm, and wall thickness is 1-6mm, length is 1m-6m.Heat-exchanger rig is taked vertical layout or is taked horizontal layout all can.Explain below in conjunction with accompanying drawing.
Fig. 1 is the plumbous bismuth heat-exchanger rig of a floating head type synoptic diagram.Among the figure; Adopt flange to connect upper cover 11 in cylindrical steel shell 10 upper ends that steel plate is bundled into; Upper cover 11 tops are the fixing secondary side coolant outlet 9 in primary side lead bismuth alloy fluid inlet 6, cylindrical steel shell 10 epimere sides fixedly, and cylindrical steel shell 10 hypomere sides are secondary side coolant water inlet 8 fixedly, and primary side heat exchanger tube 2 is supported on the floating tubesheet 15 in the cylindrical steel shell 10; Secondary side cooling medium heat exchange housing 4 is fixed on cylindrical steel shell 10 inwalls, forms the interlayer heat exchanger channels; The floating head housing 16 of floating head 5 adopts flanges to be fixed on cylindrical steel shell 10 lower ends, and primary side lead bismuth alloy fluid egress point 7 is fixed on the end central authorities of floating head housing 16.In floating head housing 16, floating tubesheet 15 is fixed on Floating Head Flange 12 tops, and floating head 13 is fixed on Floating Head Flange 12 bottoms; Between floating head 13 and floating head housing 16, form floating head 5 sliding spaces 14, Floating Head Flange 12 is not fixedly connected with floating head housing 16, makes floating head 5 in floating head sliding space 14, move up and down (as shown in Figure 3); Therefore the thermal expansion of tube bank does not receive the constraint of housing, can effectively not prevent to avoid the accident potential of expanding and producing owing to stress because the temperature difference brings stress to expand because of differential expansion produces thermal stress between housing and the tube bank.
The corner square D that the arrangement mode of above-mentioned primary side heat exchanger tube 2 on floating tubesheet 15 is arrangement angles is 30 ° equilateral triangle A, corner equilateral triangle B that arrangement angles is 60 °, arrangement angles is 90 ° square C, arrangement angles is 45 ° arranges and concentric circles is arranged (as shown in Figure 2) such as E; These arrangement modes can independent a kind of use; Also can two or more combinations use these arrangement modes to consider that the stress requirement is uniformly distributed with, compactness; And consider to clean and integrally-built requirement; Compare the heat transfer coefficient height with square arrangement, can save 15% tube sheet area, be applicable to and do not give birth to dirt or available chemical cleaning fouling and the higher operating mode of allowable pressure drop.
Flowing of said lead bismuth alloy heat-exchanger rig two side liquids promptly can be to rely on the pump in the loop to make its forced circulation fluid interchange, also can not rely on pump, and it is the Natural Circulation heat exchange for the density official post through fluid self, two kinds of heat transfer flow modes; Both sides fluid interchange form can be identical, also can be also different.
The heat-exchange method of the plumbous bismuth heat-exchanger rig of said floating head type, heat transfer process is following: lead bismuth alloy fluid 1 flows into from primary side lead bismuth alloy fluid inlet 6; Carry out fluid interchange through primary side heat exchanger tube 2 and flowing coolant water 3 in secondary side coolant water inlet 8 inflow secondary side cooling medium heat exchange housings 4; Then, the lead bismuth alloy fluid 1 after the heat exchange flows out from primary side lead bismuth alloy fluid egress point 7, and the coolant water 3 after the heat exchange flows out from secondary side coolant outlet 9; Floating head moves up and down according to the difference of the temperature difference, realizes that thus will produce heat from the ADS system derives, and accomplishes a circulation.
The fluid interchange of this device is a counter-flow heat exchange, and promptly the lead bismuth alloy flow direction is opposite with secondary side coolant water flow direction, than adopting the downflow type heat exchange to bring higher heat transfer efficiency.
Claims (10)
1. the plumbous bismuth heat-exchanger rig of a floating head type; It is characterized in that; This device is a kind of device that carries out flowing heat transfer at bilateral; The structure of the plumbous bismuth heat-exchanger rig of said floating head type is following: cylindrical steel shell (10) upper end that is bundled at steel plate connects upper cover (11); Upper cover (11) top is the fixing secondary side coolant outlet (9) in primary side lead bismuth alloy fluid inlet (6), cylindrical steel shell (10) epimere side fixedly, and cylindrical steel shell (10) hypomere side is secondary side coolant water inlet (8) fixedly, and primary side heat exchanger tube (2) is supported on the floating tubesheet (15) in the cylindrical steel shell (10); Secondary side cooling medium heat exchange housing (4) is fixed on cylindrical steel shell (10) inwall, forms the interlayer heat exchanger channels; The floating head housing of floating head (5) is fixed on cylindrical steel shell (10) lower end, and primary side lead bismuth alloy fluid egress point (7) is fixed on the end central authorities of floating head housing (16).
2. according to the plumbous bismuth heat-exchanger rig of the said a kind of floating head type of claim 1, it is characterized in that the structure of said floating head is fixed on Floating Head Flange (12) top for floating tubesheet (15) in floating head housing (16), floating head (13) is fixed on Floating Head Flange (12) bottom; Floating Head Flange (12) is not fixedly connected with floating head housing (16); Form floating head sliding space (14) between floating head (13) and the floating head housing (16).
3. according to the plumbous bismuth heat-exchanger rig of the said a kind of floating head type of claim 1, it is characterized in that said cylindrical steel shell is flange with floating head housing (16) and upper cover (11) and is connected.
4. according to the plumbous bismuth heat-exchanger rig of the said a kind of floating head type of claim 1; It is characterized in that the arrangement mode of said primary side floating head heat exchanger tube on floating tubesheet is that arrangement angles is 30 ° equilateral triangle (A), the corner equilateral triangle (B) that arrangement angles is 60 °, the square (C) that arrangement angles is 90 °, corner square (D) arrangement or the concentric circles arrangement (E) that arrangement angles is 45 °; These arrangement modes use separately or combination is used.
5. according to the plumbous bismuth heat-exchanger rig of the said a kind of floating head type of claim 1, it is characterized in that the floating head of said heat-exchanger rig moves up and down in the floating head sliding space, effectively prevent because the temperature difference brings stress to expand.
6. according to the plumbous bismuth heat-exchanger rig of the said a kind of floating head type of claim 1, it is characterized in that said lead bismuth alloy heat-exchanger rig mechanical part material is aluminium alloy, austenitic steel or stupalith.
7. according to the plumbous bismuth heat-exchanger rig of the said a kind of floating head type of claim 1, it is characterized in that said heat-exchanger rig is taked vertical layout or taked horizontal layout.
8. the heat-exchange method of the plumbous bismuth heat-exchanger rig of floating head type is characterized in that, the heat-exchange method of the plumbous bismuth heat-exchanger rig of said floating head type, and heat transfer process is following: lead bismuth alloy fluid (1) flows into from primary side lead bismuth alloy fluid inlet (6); Carry out fluid interchange through primary side heat exchanger tube (2) and flowing coolant water (3) in secondary side coolant water inlet (8) inflow secondary side cooling medium heat exchange housing (4); Then, the lead bismuth alloy fluid (1) after the heat exchange flows out from primary side lead bismuth alloy fluid egress point (7), and the coolant water after the heat exchange (3) flows out from secondary side coolant outlet (9); Floating head moves up and down according to the difference of the temperature difference, realizes the derivation of heat thus, accomplishes a circulation.
9. the heat-exchange method of the plumbous bismuth heat-exchanger rig of said according to Claim 8 floating head type; It is characterized in that; Said fluid interchange is a counter-flow heat exchange, and promptly the lead bismuth alloy flow direction is opposite with secondary side coolant water flow direction, than adopting the downflow type heat exchange to bring higher heat transfer efficiency.
10. the heat-exchange method of the plumbous bismuth heat-exchanger rig of said according to Claim 8 floating head type; It is characterized in that; Flowing of said lead bismuth alloy heat-exchanger rig two side liquids promptly can be to increase pumping unit through circuit system; Make its forced circulation fluid interchange, circuit system also can not increase pumping unit and make its Natural Circulation heat exchange, two kinds of heat transfer flow modes; Both sides fluid interchange form can be identical, also can be also different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100262594A CN102592690A (en) | 2012-02-07 | 2012-02-07 | Floating-head type lead-bismuth heat exchanging device and heat exchanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100262594A CN102592690A (en) | 2012-02-07 | 2012-02-07 | Floating-head type lead-bismuth heat exchanging device and heat exchanging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102592690A true CN102592690A (en) | 2012-07-18 |
Family
ID=46481198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100262594A Pending CN102592690A (en) | 2012-02-07 | 2012-02-07 | Floating-head type lead-bismuth heat exchanging device and heat exchanging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102592690A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981427A (en) * | 2018-07-09 | 2018-12-11 | 中国核动力研究设计院 | A kind of tubular heat exchanger |
| CN113628769A (en) * | 2021-07-05 | 2021-11-09 | 中国核电工程有限公司 | Nuclear power plant uses compact high-efficient indirect heating equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04190097A (en) * | 1990-11-26 | 1992-07-08 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| CN101216264A (en) * | 2008-01-08 | 2008-07-09 | 哈尔滨工程大学 | Needle fin tube and plain tube mixedly arranged self-supporting type heat exchanger |
| WO2009024854A2 (en) * | 2007-08-22 | 2009-02-26 | Del Nova Vis S.R.L. | Nuclear reactor with compact primary heat exchanger |
| CN102121806A (en) * | 2010-01-11 | 2011-07-13 | 湖北大冶中海换热器有限公司 | Efficient double-layer cooling shell-and-tube heat exchanger |
| CN202002515U (en) * | 2011-02-24 | 2011-10-05 | 中国石化扬子石油化工有限公司 | Heat exchanger |
| CN202101596U (en) * | 2011-04-22 | 2012-01-04 | 中国石油化工股份有限公司 | Tube and shell type heat exchanger |
-
2012
- 2012-02-07 CN CN2012100262594A patent/CN102592690A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04190097A (en) * | 1990-11-26 | 1992-07-08 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| WO2009024854A2 (en) * | 2007-08-22 | 2009-02-26 | Del Nova Vis S.R.L. | Nuclear reactor with compact primary heat exchanger |
| CN101216264A (en) * | 2008-01-08 | 2008-07-09 | 哈尔滨工程大学 | Needle fin tube and plain tube mixedly arranged self-supporting type heat exchanger |
| CN102121806A (en) * | 2010-01-11 | 2011-07-13 | 湖北大冶中海换热器有限公司 | Efficient double-layer cooling shell-and-tube heat exchanger |
| CN202002515U (en) * | 2011-02-24 | 2011-10-05 | 中国石化扬子石油化工有限公司 | Heat exchanger |
| CN202101596U (en) * | 2011-04-22 | 2012-01-04 | 中国石油化工股份有限公司 | Tube and shell type heat exchanger |
Non-Patent Citations (3)
| Title |
|---|
| 张兆杰等: "《压力容器安全技术》", 31 October 2001, article "换热管的排列方式和适用场合" * |
| 郑孝英等: "《化工单元操作》", 31 October 2010, article "换热器" * |
| 钱燕悦: "液态铅铋合金综合实验装置初步设计", 《第十届全国反应堆热工流体力学会议论文集》, 1 October 2007 (2007-10-01) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981427A (en) * | 2018-07-09 | 2018-12-11 | 中国核动力研究设计院 | A kind of tubular heat exchanger |
| CN113628769A (en) * | 2021-07-05 | 2021-11-09 | 中国核电工程有限公司 | Nuclear power plant uses compact high-efficient indirect heating equipment |
| CN113628769B (en) * | 2021-07-05 | 2023-11-24 | 中国核电工程有限公司 | Compact efficient heat exchange equipment for nuclear power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202485495U (en) | Shell-and-tube type heat exchanger of baffle of ADS (accelerator driven system) reactor | |
| US10854344B2 (en) | Air-cooled heat exchanger and system and method of using the same to remove waste thermal energy from radioactive materials | |
| CN102564169A (en) | Baffle shell-and-tube heat exchanger for ADS (accelerator-driven system) reactor | |
| CN101349514B (en) | Internal and external fins intubatton type high temperature heat exchanger | |
| CN205759760U (en) | A kind of multi-fluid kettle type reboiler | |
| CN101929811A (en) | Case-type multi-shell-pass countercurrent speedup type shell and tube heat exchanger | |
| KR20140075205A (en) | Passive decay heat removal system for liquid metal cooled reactors with enhanced natural circulation cooling capability using a helical type sodium-to-sodium heat exchanger | |
| CN103063058A (en) | Novel horizontal cooler | |
| CN201811609U (en) | Box-type multi-shell-side counter-flow speed-up shell-and-tube heat exchanger | |
| CN101936674A (en) | Box type multi-shell-pass reverse flow speed-up shell and tube heat exchanger | |
| CN102980422B (en) | Wound tube type heat exchanger for low-temperature circulating methanol coolers | |
| CN211929059U (en) | Passive heat exchanger of pressurized water reactor | |
| CN206095003U (en) | Shell -and -tube high pressure heat exchanger | |
| CN202487183U (en) | Floating-head type lead bismuth heat exchange device | |
| CN201653198U (en) | Heat exchange device | |
| CN102592690A (en) | Floating-head type lead-bismuth heat exchanging device and heat exchanging method | |
| CN201382719Y (en) | Heat exchanger with helical baffles | |
| CN202582237U (en) | Plate-shell type condenser | |
| CN201811611U (en) | Box-shell multi-shell pass reverse flow speed increasing shell-and-tube heat exchanger | |
| CN102831941B (en) | 0-shaped lead-bismuth heat exchange device | |
| CN108981427B (en) | A kind of tubular heat exchanger | |
| CN203550682U (en) | Multi-medium tube-and-shell heat exchanger | |
| CN202346974U (en) | External heat collector | |
| CN102829646A (en) | Inner finned tube condenser | |
| KR20160115065A (en) | Effective cooling flow path design and support constitution of helically coiled liquid metal-to-air heat exchanger with an external air cooling mechanism and residual heat removal system of liquid metal cooled reactors having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120718 |