CN1266267A - High temp gas cooled reactor heat-exchanger equipment - Google Patents
High temp gas cooled reactor heat-exchanger equipment Download PDFInfo
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- CN1266267A CN1266267A CN00105959A CN00105959A CN1266267A CN 1266267 A CN1266267 A CN 1266267A CN 00105959 A CN00105959 A CN 00105959A CN 00105959 A CN00105959 A CN 00105959A CN 1266267 A CN1266267 A CN 1266267A
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- 239000007789 gas Substances 0.000 claims abstract description 43
- 229910052734 helium Inorganic materials 0.000 claims description 60
- 239000001307 helium Substances 0.000 claims description 60
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 60
- 230000006698 induction Effects 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 238000010248 power generation Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000008676 import Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910017060 Fe Cr Inorganic materials 0.000 description 1
- 229910002544 Fe-Cr Inorganic materials 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 240000006413 Prunus persica var. persica Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 229910001063 inconels 617 Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a high temp. gas-cooled reactor integrated heat-exchanging device, and is characterized by that the interior of pressure shell of said device contains three equipments of steam-raising generator, intermediate heat exchanger and nitrogen fan, and firstly the high-temp. nitrogen gas is used for heating secondary gas in the intermediate heat exchanger, then fed into steam-generating equipment to heat supplied water into overheat steam, the secondary gas and overheat steam are respectively used to drive gas turbine and steam turbine to make combined circulating power generation. The integrated design of steam generator and intermediate heat-exchanger can save a pressure shell and a hot gas conduct pipe so as to raise its economy and safety.
Description
The invention belongs to and send out the Ying Dui field, relate in particular to the high temperature gas cooled reactor steam generator and the Intermediate Heat Exchanger that are used for steam turbine and gas turbine combined cycle generation.
In the high temperature gas cooled reactor of carrying out steam turbine and gas turbine combined cycle generation, the high temperature helium of reactor-loop carries out helium and helium (or nitrogen) heat interchange by middle parallel operation earlier, carries out the heat interchange of helium and water/steam after the cooling again.Prior art generally is to adopt the separated type structure, and promptly steam generator and Intermediate Heat Exchanger design respectively as two separate equipment.Carry out the high temperature gas cooled reactor of steam turbine and gas turbine combined cycle generation, a loop is mainly by reactor, hot gas conduit 1, Intermediate Heat Exchanger (helium circulator and Intermediate Heat Exchanger integrated design), and hot gas conduit 2 and steam generator are formed.Representational steam generator scheme is 200 megawatt MHTR steam generators of Siemens design, and the modular design of Intermediate Heat Exchanger is high temperature ETR Engineering Test Reactor (HTTR) Intermediate Heat Exchanger of Japan.200 megawatt steam generators of Siemens Company design have adopted the spiral tube structure of forced circulation, single flow, the helium that one loop is 700 ℃ is entered by hot gas conduit, enter tube bank between pipe core and the coaming plate through guiding device, flow from top to bottom, reduce to 245 ℃ after passing in the pipe to heat.Cold helium flows out tube bank and turns to 180 °, between steam generator sleeve and pressure vessel, up flow, enter helium circulator through cold helium header, turn back to annular channel between hot gas conduit pressure vessel and the hot gas conduit by steam generator top after the supercharging, turn back to reactor at last.The main feed water pipe mouth is positioned at the bottom of pressure vessel, and the main steam ozzle is positioned at the top of pressure vessel, connects by being connected tube bank between main feed water pipe plate and main steam tube sheet and the heating surface bank.Helical bundle is by the back up pad fixed constraint, and back up pad centers on the pipe core radial arrangement and is welded on the pipe core.The HTTR Intermediate Heat Exchanger of Japan also is the spiral coil structure, and the secondary helium enters heat-transfer pipe from four import bobbin carriages at top.Heat-transfer pipe enters the secondary helium system from the pipe core outflow after being pooled to the hot junction bobbin carriage.(pressure 4MPa, 950 ℃ of the temperature) helium that comes autothermal reactor enters from the bottom of middle heat interchanger, interbank flow with the heat interchange of secondary helium after drop to 395 ℃ and enter helium circulator from top.Intermediate Heat Exchanger mainly is made up of parts such as pressure vessel, helical bundle, pipe core, supporting construction, hot junction temperature bobbin carriage and import bobbin carriages.
The object of the present invention is to provide a kind of high temp gas cooled reactor heat-exchanger equipment that is used for steam turbine and gas turbine combined cycle generation, this device has been realized the integrated design of steam generator and Intermediate Heat Exchanger.Promptly steam generator and Intermediate Heat Exchanger are arranged in the same pressure vessel.Reduced a pressure vessel and one section hot gas conduit, thereby high temperature gas cooled reactor one circuit system is simplified, arranged simply, compact conformation has improved the security and the economy of high temperature gas cooled reactor.
Principal character of the present invention is:
(1) the steam generator of the high temperature gas cooled reactor that is used for steam turbine and gas turbine combined cycle generation, Intermediate Heat Exchanger has been realized integrated design, promptly in a pressure vessel helium circulator has been installed, three equipment of Intermediate Heat Exchanger and steam generator.
(2) integrated heat-exchanger rig is arranged and the runner tissue steam generator and Intermediate Heat Exchanger with three layers of housing.The innermost layer shell is an Intermediate Heat Exchanger chamber shell, this chamber shell installed inside thermostable heat insulation layer fiber, Intermediate Heat Exchanger is arranged in this chamber.The middle layer is a steam generator chamber shell, and this chamber shell internal layer has also been installed thermofin, and the annular space between steam generator chamber shell and the Intermediate Heat Exchanger is the steam generator chamber, and the steam generator heat-transfer pipe arrangement of components is in annular compartment.Outermost layer is a pressure vessel, and the annular space between pressure vessel and the steam generator chamber shell is the pressure vessel chamber, and fan connecting tube is arranged in this chamber.The helium flow that enters helium circulator is through fan connecting tube, and the helium that is flowed out by blower fan flows in annular compartment from top to bottom, returns the reactor core inlet through hot gas conduit.The import of Intermediate Heat Exchanger chamber links to each other with hot gas conduit, and the outlet of Intermediate Heat Exchanger chamber links to each other with the import of steam generator chamber, and the helium that flows out steam generator enters fan connecting tube.The secondary air of Intermediate Heat Exchanger low temperature (helium or nitrogen) enters by importing and exporting the concentric tubes outer tube, is entered in cold junction connection tube bank, helical bundle, hot junction connection tube bank, hot junction bobbin carriage, pipe core, the concentric tubes by the cold junction bobbin carriage and manages, enters at last gas turbine.The feedwater of steam generator is entered by the feedwater bobbin carriage, connects tube bank, heat-transfer pipe assembly, steam connection tube, steam bobbin carriage, enters main steam pipe and steam turbine through feedwater.Helium circulator is positioned at the top of heat-exchanger rig, is connected with pressure vessel by main flange, securing member, seal.In the bell and spigot that the helium circulator outlet inserts with fan connecting tube links to each other.
(3) external diameter of the outer tube of heat-transfer pipe assembly and inner sleeve and spiral pipe and the annular space between the internal diameter have constituted the helium runner, and the helium runner of every heat-transfer pipe assembly is identical, and assignment of traffic is not subjected to the influence of external environment.
(4) the heat-transfer pipe assembly has rigidity preferably, and the diameter minimum can be about 80~110mm, can be arranged in narrow annular space.
(5) heat transmitter assembly inner sleeve with groove structure can be located and adjust the assembling cover of back up pad and spiral pipe.The inner sleeve diameter is greater than pipe core, makes connecting pipe between two sections spiral pipes that the space of welding and radiological survey X be arranged.
(6) the detachable design of helium circulator and upper cover plate, make integrated heat exchanger apparatus can divide two phase engineering constructions, be the first phase engineering steam generator only is installed just can the steam turbine circulating generation, second phase engineering installs Intermediate Heat Exchanger additional, just can realize the combined cycle generation of steam turbine and gas turbine.
Design proposal of the present invention is:
The integrated heat-exchanger rig of high temperature gas cooled reactor that is used for steam turbine and gas turbine combined cycle generation mainly is made up of four parts: helium circulator, steam generator, Intermediate Heat Exchanger and pressure vessel.
Helium circulator is the recycle unit of reactor coolant.Through the driving of helium circulator, go into blower fan connecting pipe, blower pressure shell chamber from the high temperature helium of high temperature gas cooled reactor through hot gas conduit, Intermediate Heat Exchanger primary side, primary side of steam generator cooling are laggard, get back to reactor at last.
Intermediate Heat Exchanger has adopted the spiral tube structure of bull multilayer, and mainly by pipe core, temperature end bobbin carriage, low-temperature end bobbin carriage, support plate, helical bundle, Intermediate Heat Exchanger chamber shell, secondary air are imported and exported compositions such as concentric pipe.Steam generator connects tube bank by the heat-transfer pipe assembly, feedwater and steam bobbin carriage (comprising tube sheet, bobbin carriage pipe nipple, flange and end socket etc.) and compositions such as chamber housing and thermofin.The steam generator heat-transfer pipe assembly is mainly by pipe core, inner sleeve, helical bundle, and parts such as support plate and outer tube constitute.Every heat-transfer pipe assembly is a little steam generator with independent primary side and secondary side runner, and the thermal power of every heat-transfer pipe assembly is distributed and assignment of traffic all compares evenly.Because size of components is little, good rigidity can be arranged in narrow annular steam generator chamber, and integrated layout has been created condition.
Pressure vessel is the pressure-bearing boundary of helium circulator, steam generator and Intermediate Heat Exchanger.
Description of drawings:
Fig. 1 is that the heat-exchanger rig that contains steam generator and helium circulator is always schemed;
Fig. 2 is that the heat-exchanger rig that contains steam generator, Intermediate Heat Exchanger and helium circulator is always schemed;
Fig. 3 is that steam generator steams heat-transfer pipe assembly figure.
[1] helium circulator [2] blower fan inlet tube [3] bell and spigot [4] Intermediate Heat Exchanger chamber shell [5] steam generator chamber shell [6] steam generator heat-transfer pipe assembly [7] pressure vessel [8] feedwater connection tube bank [9] feedwater bobbin carriage [10] Steam tube box [11] steam connection tube bundle [12] upper cover plate [13] fan connecting tube [14] Intermediate Heat Exchanger helical bundle [15] hot gas conduit [16] hot junction connection tube bank [17] hot junction bobbin carriage [18] central tube [19] cold junction connection tube bank [20] cold junction bobbin carriage [21] is imported and exported concentric tubes [22] helix tube [23] central tube [24] support plate [25] outer tube [26] inner sleeve
Advantage of the present invention is:
1. arranged helium circulator in a pressure vessel, three equipment of steam generator and Intermediate Heat Exchanger subtract Lack a pressure vessel and a hot gas conduit pressure vessel, improved security and economy.
2. the dismantled and assembled structure of helium circulator and steam generator and Intermediate Heat Exchanger cavity top cover plate makes integrated apparatus Divide two phase engineering constructions to become a reality.
3. the steam generator heat-transfer pipe assembly installs outer tube and inner sleeve additional and helium gas flow is distributed be not subjected to external environment condition Impact, to guarantee the distributed uniform of helium gas flow in each heat-transfer pipe assembly.
4. the use of steam generator chamber shell, Intermediate Heat Exchanger chamber shell and Intermediate Heat Exchanger central tube thermal insulation layer, Make these housings avoid bearing high temperature.
5, steam generator heat-transfer pipe assembly inner sleeve with groove structure is convenient to location and the adjustment of support plate.
Embodiment:
With the Tsing-Hua University's 10 MW High Temperature Gas-cooled Test Reactor steam generators and the Intermediate Heat Exchanger integrated apparatus of the present invention's design, further specify the scheme of the present invention's design in conjunction with the accompanying drawings.
Steam generator
That steam generator has adopted is vertical, direct current, assembly type spiral tube structure, it and Intermediate Heat Exchanger adopt integrated design to prepare for 10 MW High Temperature Gas-cooled Test Reactor thes second stage of the project, first phase engineering is not installed Intermediate Heat Exchanger, the position of Intermediate Heat Exchanger becomes one section helium runner (Intermediate Heat Exchanger chamber), the steam generator of first phase engineering mainly is made up of steam generator pressure vessel [7], heat-transfer pipe assembly [6], connection tube bank, channel structure, thermofin and internals, and helium circulator [1] is positioned at the top of device.
Come the high temperature helium of autothermal reactor to enter bundle of steam generator assembly helium side runner through hot gas conduit [15] and Intermediate Heat Exchanger chamber.At mobile from top to bottom water and the steam of heat being passed in the pipe of bundle of steam generator helium, make helium be cooled to 250 ℃ from 700 ℃, the helium that flows out the bundle of steam generator assembly enters helium circulator [1] through fan connecting tube [13], and the circumferential weld that enters between hot gas conduit pressure vessel and the hot gas conduit behind the circumferential weld between helium flow excess pressure shell after the supercharging and the steam generator chamber shell [6] is got back to reactor core.Though Zu Zhi helium flow process is comparatively complicated like this, pressure vessel is only contacted, with cold helium to guarantee the safety of pressure vessel.The feedwater of secondary circuit enters spiral pipe through feedwater bobbin carriage and connecting pipe from the bottom, flows through preheating section in spiral pipe from the bottom up, evaporator section and superheat section, and the superheated vapor that is become 440 ℃ by 104 ℃ subcooled waters enters the Steam Turbine Driven generator for electricity generation.
The steam generator heat-transfer pipe assembly adopts the spiral tube structure of single head, small-bend radius, and this heat-transfer pipe pipe assembly [6] is by pipe core, inner sleeve, helical bundle, and support plate and outer tube are formed.Outer tube, two circumferential welds between spiral pipe and the inner sleeve have constituted the helium runner.The caliber of heat-transfer pipe preheating section and evaporator section is φ 18 * 3mm, and the caliber of superheat section is φ 18 * 2mm, and it is for mass velocity that improves evaporator section and the resistance to flow that reduces superheat section, to guarantee the stability of vapour one water diphasic flow that heat-transfer pipe adopts different inner diameters.It is to keep the physical dimension of helical bundle identical that heating surface bank adopts the purpose of same outer diameter as, is convenient to the tissue of helium runner.For the resistance that reduces the steam generator outlet section is installed throttling orifice plate with being convenient in feedwater tube sheet pipe, connecting pipe behind superheat section and the connecting pipe before the preheating section have all adopted the pipe of φ 22 * 2.5mm, helical bundle divide four sections totally 88 the circle be entwined, the connection of each section helical bundle fetches realization by jam welding, the connection of reduced diameter portion realizes by a transition section, and steam generator has 30 heat-transfer pipe assemblies and is arranged in annular space between Intermediate Heat Exchanger chamber shell and the steam generator chamber shell.The helical bundle diameter is 112mm, and the outer tube diameter is 148mm.
The effect that steam generator connects tube bank is that the import of heat-transfer pipe and outlet are connected on the tube sheet of feedwater bobbin carriage and steam bobbin carriage.In order to prevent fluid-induced vibration, in the connection tube bank, be provided with Duct fixing clamp, and thermofin all be installed in connection tube bank both sides, so not only prevent vibration but also reduced thermal loss.
Intermediate Heat Exchanger
Intermediate Heat Exchanger has adopted the spiral tube structure of bull multilayer.The caliber of heat-transfer pipe is φ 25 * 2.5mm, and pipe core is φ 900 * 40mm.Hot junction bobbin carriage and cold junction bobbin carriage have all adopted columnar structured, and support plate is welded in pipe core upper support constraint helical bundle.The high temperature helium enters Intermediate Heat Exchanger tube bank by hot gas conduit, and enters steam generator after the secondary air heat exchange.Secondary air is entered by the cold junction bobbin carriage and enters gas turbine after cold junction connects tube bank [19], helical bundle [14], hot junction connection tube bank [16], hot junction bobbin carriage [17], pipe core [18] and concentric tubes [21] and inner sleeve.
Internals
The internals of heat-exchanger rig is mainly by forming with the lower part:
Intermediate Heat Exchanger chamber shell [4]
Intermediate Heat Exchanger chamber shell is by cylindrical shell, bearing plate, and parts such as linkage section cylindrical shell and flange linkage section are formed.Bearing plate connects Intermediate Heat Exchanger chamber shell linkage section cylindrical shell, and has born the total weight of heat-exchanger rig internals by 4 back-up blocks (stiffening plate) on the bearing plate.
Steam generator chamber shell [5] reaches linkage section down
Steam generator chamber shell is made up of parts such as steam generator chamber thimble body, thermofin flange and last linkage sections.Steam generator chamber shell links to each other with linkage section up and down by location-plate, and linkage section is welded on the bearing plate down.Steam generator chamber shell and Intermediate Heat Exchanger chamber shell have constituted an annular space like this, and the heat-transfer pipe assembly just is arranged in this annular space.The outer tube lower end of 30 heat-transfer pipe assemblies is welded on the location-plate; Heat-transfer pipe assembly outer sleeve upper socket joint is in the circular hole of last positioning disk.The thermofin flange welds mutually with the upper end of steam generator chamber shell.Loam cake is connected the back steam generator chamber shell is closed on top with the thermofin flange.8 locating pieces are arranged on the thermofin flange circumference, the limiting plate on wherein 0 °, 90 °, 180 ° and 270 ° of locational locating pieces and the pressure vessel has been formed the cross locating device, has limited internals hoop and moving radially.Have on 6 locating pieces in these 8 locating pieces to have circular hole, fan connecting tube passes circular hole and plays spacing and fixing effect.
Bell and spigot [3] and fan connecting tube [13]
Helium circulator is positioned at the top of device, and the induction pipe of helium circulator [2] socket joint is in bell and spigot.Faucet structure is by the socket joint tube, flange, and parts such as gusset and grommet are formed.6 fan connecting tubes [13] lower end is connected in down on the circumference of linkage section, and the circular hole of thermofin flange locating piece is passed in the centre, and the upper end is welded on the circumference of bell and spigot, and bell and spigot is played a supportive role.The bell and spigot radial location realizes by the adjustment screw of adjusting on the grommet.
Upper cover plate [12]
Upper cover plate links to each other with the thermofin flange.Upper cover plate has mainly played flange plate.It mainly comprises upper cover plate, back up pad, carrying cylinder and reinforcement etc.Support plate and reinforcement design for the dress thermofin, and the main effect of carrying cylinder is to be used for supporting Intermediate Heat Exchanger chamber shell, prevent middle parallel operation chamber shell distortion in equipment transportation and use.Influence the installation of the second stage of the project Intermediate Heat Exchanger.In order to guarantee the unimpeded of helium runner, a large amount of circular holes have been opened on the carrying cylinder circumference.
Channel structure
The steam generator channel structure has mainly comprised tube sheet, channel flange, end socket, transition section, securing member and seal etc.Channel structure is positioned at the low head of steam generator pressure vessel.Channel flange is welded on the pressure vessel low head by transition section and ozzle, and tube sheet and the welding of tube sheet pipe nipple have formed hot jacket sleeve structure, have reduced localized heat stress.Connect tube bank and connected feedwater tube sheet and steam tube sheet respectively, in the pore of feedwater tube sheet, throttling orifice plate has been installed, to guarantee the stability of vapour one water diphasic flow.The Intermediate Heat Exchanger bobbin carriage adopts columnar structured.
Material
Factors such as the selection of steam generator has mainly been considered to want the compliant requirement, and is safe and reliable, compatible with medium, and processability is good and reasonable economically.The preheating section of external high temperature gas cooled reactor steam generator heat-transfer pipe generally all adopts carbon steel, and evaporator section generally adopts
Or other low alloy steel, superheat section generally all adopts Ni-Fe-Cr alloy, the employing that also has
Steel (as the AVR steam generator, little superheat section of THTR steam generator) and 304 does not lure steel (peach blossom paddy steam generator).Owing to press parameter (435 ℃ of admission turbine vapor (steam) temperatures during the high temperature gas-cooled experimental reactor steam generator of 10MW is operated in, 505 ℃ of AVR steam generator vapor (steam) temperatures), the highest calculating wall temperature of heat-transfer pipe is about 520 ℃, adopts to have better high-temperature behavior and good anti-chlorine ion stress corrosion performance
Steel can satisfy the design of steam generator requirement fully, and meets design specifications, considers that the heat transfer area of steam generator is little, and steel using amount is few, preheating section, and evaporator section and superheat section all adopt commaterial
Steel.Bobbin carriage has also adopted
Steel.
The pipe core [23] of steam generator heat-transfer pipe assembly [6], outer tube [25] and support plate [24] adopt austenitic stainless steel, and Intermediate Heat Exchanger thermofin liner adopts nickel-bass alloy material, and the thermofin heat-insulating fiber adopts Al
2O
3, other inner structure material adopts austenitic stainless steel respectively according to working temperature, SA516-70 or
Steel.
Intermediate Heat Exchanger heat-transfer pipe and hot junction bobbin carriage have adopted Inconel-617, and other parts have adopted 316 stainless steels.
Claims (2)
1. high temp gas cooled reactor heat-exchanger equipment that is used for steam turbine and gas turbine combined cycle generation, this heat-exchanger rig is by steam generator, Intermediate Heat Exchanger and helium circulator are formed, and it is characterized in that: steam generator, and Intermediate Heat Exchanger and helium circulator [1] are installed in the same pressure vessel;
A. the heat-exchanger rig innermost layer is an Intermediate Heat Exchanger chamber shell [4], and Intermediate Heat Exchanger places this chamber;
B. the heat-exchanger rig middle layer is a steam generator chamber shell [5], in the annular compartment that this shell and Intermediate Heat Exchanger chamber shell [4] are formed steam generator heat-transfer pipe assembly [6] has been installed;
C. the heat-exchanger rig outermost layer is pressure vessel [7], and this shell and steam generator chamber shell [5] have been formed annular pressure vessel chamber, and fan connecting tube [13] places in this chamber;
D. helium circulator is positioned at the top of heat-exchanger rig, and by main flange, securing member is connected with pressure vessel with seal, blower fan induction pipe [2] socket joint with bell and spigot [3] that fan connecting tube [13] links to each other in;
E. steam generator has adopted outer tube [25] and the inner sleeve [26] that makes every heat-transfer pipe assembly [6] that independently identical helium runner all be arranged;
D. the heat-transfer pipe assembly [6] of steam-generating tube, its independently identical helium runner is by outer tube [25], spiral pipe [22] and inner sleeve [26] are formed, and promptly circumferential weld has been formed the helium runner between circumferential weld between outer tube [25] and spiral pipe [26] external diameter and inner sleeve [26] and spiral pipe [22] internal diameter.
2. heat-exchanger rig according to claim 1 said heat-transfer pipe assembly inner sleeve [26] outer wall uniform three axial grooves, support plate [24] is installed in the groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN00105959A CN1123893C (en) | 2000-04-24 | 2000-04-24 | High temp gas cooled reactor heat-exchanger equipment |
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CN00105959A CN1123893C (en) | 2000-04-24 | 2000-04-24 | High temp gas cooled reactor heat-exchanger equipment |
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CN1266267A true CN1266267A (en) | 2000-09-13 |
CN1123893C CN1123893C (en) | 2003-10-08 |
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CN00105959A Expired - Fee Related CN1123893C (en) | 2000-04-24 | 2000-04-24 | High temp gas cooled reactor heat-exchanger equipment |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1310254C (en) * | 2002-04-12 | 2007-04-11 | 法玛通Anp公司 | Method and device for the production of electricity from the heat produced in the core of at least one high-temperature nuclear reactor |
CN100398900C (en) * | 2005-04-30 | 2008-07-02 | 中国科学院等离子体物理研究所 | Method for obtaining high-temperature hot fluid based on multi-layer piping structure |
CN101307897B (en) * | 2008-06-24 | 2010-06-23 | 清华大学 | Device for guaranteeing cooling air stack loop medium flow uniformity in steam generator |
CN101775309A (en) * | 2010-03-01 | 2010-07-14 | 清华大学 | Method for refining from oil sand by using high-temperature gas-cooled reactor and special equipment |
WO2010127471A1 (en) * | 2009-05-06 | 2010-11-11 | 清华大学 | Steam generator |
CN102208217A (en) * | 2011-05-19 | 2011-10-05 | 清华大学 | Sealing structure for maintenance of helium circulator of high temperature gas-cooled reactor |
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2000
- 2000-04-24 CN CN00105959A patent/CN1123893C/en not_active Expired - Fee Related
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CN1310254C (en) * | 2002-04-12 | 2007-04-11 | 法玛通Anp公司 | Method and device for the production of electricity from the heat produced in the core of at least one high-temperature nuclear reactor |
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