CN201936630U - Saturated steam generator - Google Patents
Saturated steam generator Download PDFInfo
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- CN201936630U CN201936630U CN201020693043XU CN201020693043U CN201936630U CN 201936630 U CN201936630 U CN 201936630U CN 201020693043X U CN201020693043X U CN 201020693043XU CN 201020693043 U CN201020693043 U CN 201020693043U CN 201936630 U CN201936630 U CN 201936630U
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- steam
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- water separator
- bucket wall
- steam generator
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- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 127
- 238000000926 separation method Methods 0.000 claims description 16
- 241000237509 Patinopecten sp. Species 0.000 claims description 3
- 235000020637 scallop Nutrition 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000010408 sweeping Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000012808 vapor phase 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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the technical field of saturated steam equipment, and particularly discloses a saturated steam generator, which comprises a reactor main circuit pressure vessel, a high-efficiency heat exchanger and a steam-water separator. The high-efficiency heat exchanger and the steam-water separator are serially connected with each other, the high-efficiency heat exchanger is arranged inside the reactor main circuit pressure vessel, and the steam-water separator is disposed on the outside of the reactor main circuit pressure vessel. The saturated steam generator is applicable to compact type integral nuclear reactors, not only can provide high-dryness saturated steam, but also is high in operation efficiency and compact in structure, and is particularly suitable for application and popularization of compact type small-size nuclear reactors.
Description
Technical field
The utility model relates to saturated vapor device technique field, particularly a kind of saturated steam generator device that is applicable to compact integrated nuclear reactor.
Background technology
At present, the drum formula steam generator of widespread usage mainly is to be made of evaporator section and steam-water separator in the nuclear power engineering, and no matter be that evaporator section and steam-water separator are the integral structure forms that places in the pressure-bearing shell, still with the separated type version in the two two pressure-bearing shell that are placed in, the two all is positioned at outside the pressure vessel of nuclear reactor major loop.
The water of secondary circuit side is heated boiling and produces the higher water vapour of humidity in evaporator section, the water vapor of high humility is sloughed wherein contained unnecessary liquid moisture after entering steam-water separator, produces saturated vapour.This steam generator parameter is all very high, can produce a large amount of High Temperature High Pressure saturated steams, is very suitable for modern large nuclear-power factory and uses.But this steam generator device all exists the very huge problem of volume and weight, uses for it in the compact pressurized-water reactor and brings difficulty, even can not use.
Miniaturization compact pressurized-water reactor, because it is suitable as special motive use and comes into one's own day by day, and special application scenario has also proposed strict demand to the performance and the size of nuclear reactor steam generating system, and the volume and weight of auxiliary devices such as control nuclear reactor body and steam generator device also improves the top priority that its serviceability is a this nuclear reactor of design.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model is that how to overcome existing steam generator device volume and weight huger, is of limited application, and can not satisfy the shortcoming of compact small cores reactor demand.
(2) technical scheme
In order to address the above problem, the utility model provides a kind of saturated steam generator, comprising: reactor main circuit pressure vessel and high-performance heat exchanger that is connected in series and steam-water separator;
Described high-performance heat exchanger places described reactor main circuit pressure vessel inside;
Described steam-water separator places described reactor main circuit pressure vessel outside.
Further, also comprise: ebullator and valve; Described ebullator and valve parallel connection are connected with high-performance heat exchanger with described steam-water separator respectively.
Further, described high-performance heat exchanger comprises: outside tube bank outer tube, top header, collecting pipe and the outlet of described tube bank pipe managed, is enclosed within the bottom header, water inlet pipe, the tube bank that are positioned at the bottom; One end of described water inlet pipe is connected with described outlet of circulating pump end, and the other end of described water inlet pipe extends in the header of bottom; The lower perforated plate of the upper perforated plate of described top header and described bottom header welds with the two ends of the interior pipe of tube bank respectively; The lower perforated plate of described top header and the upper perforated plate of bottom header weld with the two ends of tube bank outer tube respectively; The inboard of the pipe outside and described tube bank outer tube forms marmon clamp slit-tube road in the described tube bank; Described collecting pipe links to each other with the top header and is enclosed within the outside of described water inlet pipe; Described outlet links to each other with described collecting pipe.
Further, described steam-water separator comprises and places outer field steam-water separator housing, support, primary cyclone bucket wall, secondary cyclone bucket wall, orifice plate, primary cyclone blade, secondary cyclone blade, vertical corrugated plate separation vessel, steam outlet pipe under water;
Described support is an annular, has a plurality of scallop holes on the described circle ring rack, and its outward flange is welded on the described steam-water separator inner walls and apart from 1/2-1/3 place, steam-water separator housing lower end; Described support is positioned at water surface below; Described primary cyclone bucket wall is vertically welded on the described support; Described orifice plate under water is positioned at primary cyclone bucket wall lower inside; Primary cyclone blade, secondary cyclone blade vertically are connected in turn on the inside and outside both sides of described primary cyclone bucket wall; The welded top of described steam outlet pipe and steam-water separator housing also extends to the outside of described steam-water separator housing, and it is positioned at an end of steam-water separator enclosure interior and the upper end of described vertical corrugated plate separation vessel welds together; The lower end of described vertical ripple separation vessel is connected with secondary cyclone bucket wall top.
Further, described steam-water separator also comprises tedge and downtake; Described tedge is positioned at the lower end of orifice plate under water, links to each other with outlet in the described high-performance heat exchanger; Described downtake is positioned at the bottom of described steam-water separator, links to each other with the inlet end of ebullator.
Further, described secondary cyclone blade is connected near on the primary cyclone bucket wall of secondary cyclone bucket wall one side.
Further, described secondary cyclone bucket wall is a cylindrical shape, tips upside down on the periphery of described primary cyclone bucket wall, the top that its bottom extends to the below of the water surface and is positioned at support; Its bottom is positioned on the bucket wall of water surface top and has a plurality of holes.
Further, also comprise: water replanishing device, described water replanishing device links to each other with described steam-water separator.
(3) beneficial effect
The utlity model has following advantage: the saturated steam generator that is applicable to compact integrated nuclear reactor that the utility model provides, this steam generator device can not only provide the saturated vapor of high mass dryness fraction, and operating efficiency height, compact conformation, be specially adapted to the application and the popularization of compact small cores reactor.
Description of drawings
Fig. 1 is the utility model embodiment saturated steam generator structural representation;
Fig. 2 is the utility model embodiment saturated steam generator high-performance heat exchanger structural representation;
Fig. 3 is the utility model embodiment saturated steam generator steam-water separator structural representation;
Fig. 4 is the utility model embodiment saturated steam generator supporting structure synoptic diagram;
Fig. 5 is the utility model embodiment saturated steam generator secondary cyclone bucket wall construction sectional view;
Fig. 6 is the utility model embodiment saturated steam generator secondary cyclone bucket wall construction vertical view.
Among the figure: 1, reactor main circuit pressure vessel; 2, high-performance heat exchanger; 3, steam-water separator; 4, ebullator; 5, valve; 6, water replanishing device; 7, water inlet pipe; 8, bottom header; 9, top header; 10, collecting pipe; 11, outlet; 12, pipe in the tube bank; 13, tube bank outer tube; 14, steam-water separator housing; 15, downtake; 16, tedge; 17, support; 18, orifice plate under water; 19, primary cyclone blade; 20, primary cyclone bucket wall; 21, secondary cyclone blade; 22, secondary cyclone bucket wall; 23, vertical corrugated plate separation vessel; 24, steam outlet pipe; 25, hole.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Shown in Fig. 1-6, the utility model embodiment saturated steam generator comprises: reactor main circuit pressure vessel 1 and high-performance heat exchanger 2 that is connected in series and steam-water separator 3 also comprise ebullator 4 and valve 5.High-performance heat exchanger 2 places the inside of reactor main circuit pressure vessel 1, and steam-water separator 3 places the outside of reactor main circuit pressure vessel 1.After ebullator 4 and valve 5 are connected in parallel, be connected with high-performance heat exchanger 2 with steam-water separator 3 respectively.
Reactor core in this reactor main circuit pressure vessel 1 produces heat energy, by the water in the reactor main circuit pressure vessel 1 with the side of this thermal energy transfer to the major loop of high-performance heat exchanger 2.This high-performance heat exchanger 2 comprises as evaporator section: pipe 12 in water inlet pipe 7, bottom header 8, the tube bank, be enclosed within pipe in the tube bank 12 outer tube bank outer tube 13, top header 9, collecting pipe 10 and outlets 11.
This bottom header 8 is positioned at the bottom of high-performance heat exchanger 2, and an end of water inlet pipe 7 is connected with the endpiece of ebullator 4, and the other end of water inlet pipe 7 extends to bottom header 8 the insides; The lower perforated plate of the upper perforated plate of top header 9 and bottom header 8 welds with the two ends of the interior pipe 12 of tube bank respectively; The upper perforated plate of the lower perforated plate of top header 9 and bottom header 8 is respectively at the two ends welding of tube bank outer tube 13; The inboard of pipe 12 outsides and tube bank outer tube 13 forms marmon clamp slit-tube road in the tube bank; Collecting pipe 10 links to each other with top header 9 and is enclosed within the outside of water inlet pipe 7; Outlet 11 links to each other with collecting pipe 10.Adopt the circuit design of bushing type or helix tube type, greatly saved the space that high-performance heat exchanger 2 inner each parts occupy, when guaranteeing to provide high saturated vapour, realized the compactedness of high-performance heat exchanger structure.
This steam-water separator 3 comprises and places outer field steam-water separator housing 14, downtake 15, tedge 16, support 17, orifice plate 18, primary cyclone blade 19, primary cyclone bucket wall 20, secondary cyclone blade 21, secondary cyclone bucket wall 22, vertical corrugated plate separation vessel 23, steam outlet pipe 24 under water.
In addition, this saturated steam generator also comprises water replanishing device 6, and this water replanishing device 6 links to each other with steam-water separator 3, for steam generator 2 provides subcooled water.
The utility model embodiment can make steam generator flow the circulating ratio of regulating closed circuit by valve 5 with forced circulation mode generation working medium when ebullator 4 operate as normal; Perhaps when ebullator 4 quits work, can make steam generator carry out working medium by valve 5 and flow with natural circulation mode.
Specify the course of work of saturated steam generator below.
Reactor core in this reactor main circuit pressure vessel 1 produces heat energy, by the water in the reactor main circuit pressure vessel 1 with the side of this thermal energy transfer to the major loop of high-performance heat exchanger 2.The subcooled water that water replanishing device 6 provides enters the bottom of steam-water separator 3, if when using the forced circulation operating mode, subcooled water by downtake 15 in ebullator 4 enters water inlet pipe 7 in the high-performance heat exchanger 2; When perhaps using naturally circulated condition, subcooled water by downtake 15 in valve 5 enters water inlet pipe 7 in the high-performance heat exchanger 2.Water inlet pipe 7 drops to subcooled water in the bottom header 8.Under the effect of ebullator or Natural Circulation pressure head, subcooled water rises in the marmon clamp slit-tube road that pipe 12 and tube bank outer tube 13 form in by tube bank from bottom to top, and the water and the steam that are in the marmon clamp slit-tube road are called secondary circuit water.In the process that rises, in flowing through and restrain, the continuous absorption of this secondary circuit water seethes with excitement behind the heat of pipe 12 inside and a loop water of restraining outer tube 13 outsides.Because the upper perforated plate of top header 9 and the lower perforated plate of bottom header 8 weld with the two ends of the interior pipe 12 of tube bank respectively, the upper perforated plate of the lower perforated plate of top header 9 and bottom header 8 is respectively at the two ends welding of tube bank outer tube 13.Limit secondary circuit water with this and can only be in tube bank flow in the marmon clamp slit-tube road that forms of pipe 12 and tube bank outer tube 13, and a loop water can restrained outer tube 13 flows outside by managing 12 inside in the tube bank.Therefore secondary circuit water absorbs heat simultaneously by the inside and outside both sides on marmon clamp slit-tube road, has realized the heat interchange of carrying out in limited space efficiently.The steam water interface that secondary circuit water boiling back produces rises in the top header 9.By collecting pipe 10 steam water interface is introduced outlet 11 and finish heat transfer process.
Because outlet 11 links to each other with tedge 16 in the steam-water separator, the steam water interface of heat absorption formation is got back in the steam-water separator 3 through tedge 16.Steam in steam-water separator 3 rises until the constraint of disengaging liquid level equably by behind orifice plate 18 a large amount of apertures under water, enters primary cyclone 19 afterwards and carries out roughing out.Separation principle is: steam produces mobile that rotation makes progress under the effect of primary cyclone blade 19, the liquid phase of sweeping along in the steam is bigger because of density and vapor phase, thereby in rotary course, got rid of to the periphery by centrifugal force and hit in the inboard of primary cyclone bucket wall 20 and attached to top, flow back to downwards in the subcooled water of steam-water separator 3 bottoms after waiting to conflux into liquid stream; And the dry steam of taking off liquid phase continues upwards to flow, and primary cyclone 19 plays the dehumidifying purpose.Because secondary cyclone bucket wall 22 is to tip upside down on primary cyclone bucket wall 20 peripheries, the steam of doing through separating for the first time rises and runs into secondary cyclone bucket wall 22 tops and be blocked the back and turn to current downflow, enters separation for the second time thereby enter secondary cyclone.Steam produces downward the flowing of rotation under 21 effects of secondary cyclone blade, the liquid phase of sweeping along in the steam is got rid of to the periphery by centrifugal force in rotary course and is hit in the inboard of secondary cyclone bucket wall 22 and attached to top, flow back to downwards in the subcooled water of steam-water separator bottom after confluxing into liquid stream, and dry steam is stopped in the annular space that can only flow to by the hole 25 of secondary cyclone bucket wall 22 bottoms between secondary cyclone bucket wall 22 and the steam-water separator housing 14 by liquid level because of flowing downward.Had higher mass dryness fraction through twice cyclone separator separated steam this moment, but also sweeping along a small amount of extremely trickle drop, the steam of higher mass dryness fraction enters in the vertical corrugated plate separation vessel 23 after continuing upwards to flow, in the tortuous runner of vertical corrugated plate separation vessel 23, frequently turn to because of flowing, trickle drop constantly hits on the corrugated plate surface of vertical corrugated plate separation vessel 23 and is adsorbed and finally flow back in the subcooled water of steam-water separator 3 bottoms along secondary cyclone bucket wall 22 outsides, final from vertical corrugated plate separation vessel 23, come out saturated and dry steam be transferred to steam-water separator 3 outsides through steam outlet pipe 24 so that carry out next step process.
The saturated steam generator that is applicable to compact integrated nuclear reactor that the utility model provides, this steam generator device can not only provide the saturated vapor of high mass dryness fraction, and operating efficiency height, compact conformation, be specially adapted to the application and the popularization of compact small cores reactor.
Above embodiment only is used to illustrate the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (8)
1. a saturated steam generator is characterized in that, comprising: reactor main circuit pressure vessel and high-performance heat exchanger that is connected in series and steam-water separator;
Described high-performance heat exchanger places the inside of described reactor main circuit pressure vessel;
Described steam-water separator places the outside of described reactor main circuit pressure vessel.
2. saturated steam generator as claimed in claim 1 is characterized in that, also comprises: ebullator and valve;
Described ebullator and valve parallel connection are connected with high-performance heat exchanger with described steam-water separator respectively.
3. saturated steam generator as claimed in claim 1, it is characterized in that described high-performance heat exchanger comprises: outside tube bank outer tube, top header, collecting pipe and the outlet of described tube bank pipe managed, is enclosed within the bottom header, water inlet pipe, the tube bank that are positioned at the bottom;
One end of described water inlet pipe is connected with described outlet of circulating pump end, and described water inlet pipe extends in the header of bottom;
The lower perforated plate of the upper perforated plate of described top header and described bottom header welds with the two ends of the interior pipe of tube bank respectively; The lower perforated plate of described top header and the upper perforated plate of bottom header weld with the two ends of tube bank outer tube respectively; The inboard of the pipe outside and described tube bank outer tube forms marmon clamp slit-tube road in the described tube bank;
The outside that described collecting pipe is enclosed within described water inlet pipe links to each other with the top header;
Described outlet links to each other with described collecting pipe.
4. saturated steam generator as claimed in claim 1, it is characterized in that described steam-water separator comprises and places outer field steam-water separator housing, support, primary cyclone bucket wall, secondary cyclone bucket wall, orifice plate, primary cyclone blade, secondary cyclone blade, vertical corrugated plate separation vessel, steam outlet pipe under water;
Described support is an annular, has a plurality of scallop holes on the described circle ring rack, and its outward flange is welded on the described steam-water separator inner walls and apart from 1/2-1/3 place, steam-water separator housing lower end; Described support is positioned at water surface below;
Described primary cyclone bucket wall is vertically welded on the described support;
Described orifice plate under water is positioned at primary cyclone bucket wall lower inside; Primary cyclone blade, secondary cyclone blade vertically are connected in turn on the inside and outside both sides of described primary cyclone bucket wall;
The welded top of described steam outlet pipe and steam-water separator housing also extends to the outside of described steam-water separator housing, and it is positioned at an end of steam-water separator enclosure interior and the upper end of described vertical corrugated plate separation vessel welds together;
The lower end of described vertical ripple separation vessel is connected with secondary cyclone bucket wall top.
5. saturated steam generator as claimed in claim 4 is characterized in that described steam-water separator also comprises tedge and downtake;
Described tedge is positioned at the lower end of orifice plate under water, links to each other with outlet in the described high-performance heat exchanger;
Described downtake is positioned at the bottom of described steam-water separator, links to each other with the inlet end of ebullator.
6. saturated steam generator as claimed in claim 4 is characterized in that, described secondary cyclone blade is connected near on the primary cyclone bucket wall of secondary cyclone bucket wall one side.
7. saturated steam generator as claimed in claim 4 is characterized in that, described secondary cyclone bucket wall is a cylindrical shape, and it tips upside down on the periphery of described primary cyclone bucket wall, the top that its bottom extends to the below of the water surface and is positioned at support; Its bottom is positioned on the bucket wall of water surface top and has a plurality of holes.
8. saturated steam generator as claimed in claim 1 is characterized in that, also comprises: water replanishing device, described water replanishing device links to each other with described steam-water separator.
Priority Applications (1)
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CN201020693043XU CN201936630U (en) | 2010-12-22 | 2010-12-22 | Saturated steam generator |
Applications Claiming Priority (1)
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CN201020693043XU CN201936630U (en) | 2010-12-22 | 2010-12-22 | Saturated steam generator |
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CN201936630U true CN201936630U (en) | 2011-08-17 |
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CN201020693043XU Expired - Lifetime CN201936630U (en) | 2010-12-22 | 2010-12-22 | Saturated steam generator |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102563590A (en) * | 2010-12-22 | 2012-07-11 | 清华大学 | Saturated steam generator |
CN103208317A (en) * | 2012-01-17 | 2013-07-17 | 巴布科克和威尔科克斯核能股份有限公司 | Integral pressurized water reactor with external steam drum |
CN105118532A (en) * | 2015-09-11 | 2015-12-02 | 中广核(北京)仿真技术有限公司 | Integrated reactor |
CN105605548A (en) * | 2016-03-25 | 2016-05-25 | 上海核工程研究设计院 | Steam generator with external steam-water separator |
-
2010
- 2010-12-22 CN CN201020693043XU patent/CN201936630U/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102563590A (en) * | 2010-12-22 | 2012-07-11 | 清华大学 | Saturated steam generator |
CN102563590B (en) * | 2010-12-22 | 2014-04-02 | 清华大学 | Saturated steam generator |
CN103208317A (en) * | 2012-01-17 | 2013-07-17 | 巴布科克和威尔科克斯核能股份有限公司 | Integral pressurized water reactor with external steam drum |
US9523496B2 (en) | 2012-01-17 | 2016-12-20 | Bwxt Nuclear Energy, Inc. | Integral pressurized water reactor with external steam drum |
CN105118532A (en) * | 2015-09-11 | 2015-12-02 | 中广核(北京)仿真技术有限公司 | Integrated reactor |
CN105605548A (en) * | 2016-03-25 | 2016-05-25 | 上海核工程研究设计院 | Steam generator with external steam-water separator |
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Granted publication date: 20110817 Effective date of abandoning: 20140402 |
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