CN204665240U - Steam generator water chamber head structure - Google Patents
Steam generator water chamber head structure Download PDFInfo
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- CN204665240U CN204665240U CN201520133704.6U CN201520133704U CN204665240U CN 204665240 U CN204665240 U CN 204665240U CN 201520133704 U CN201520133704 U CN 201520133704U CN 204665240 U CN204665240 U CN 204665240U
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- inner sleeve
- water chamber
- steam generator
- head structure
- low head
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Abstract
The utility model discloses a kind of steam generator water chamber head structure, the chamber comprising the first inner sleeve, the second inner sleeve and be located between low head and tube sheet, chamber is separated into hot water chamber and cold water chamber, and the first inner sleeve, the second inner sleeve are sheathed on low head respectively and are communicated with hot water chamber, cold water chamber hermetically respectively.The setting of the first inner sleeve, the second inner sleeve and chamber, the main pipeline be connected between main equipment can be eliminated, overcome the drawback that need take larger space when being connected by main pipeline between main equipment in prior art, save space, be more suitable for the layout occasion of the limited space such as offshore applications, also reduce loss of-coolant accident (LOCA) risk simultaneously; And the number of openings decreased on low head, makes the stress distribution on low head more balanced, thus can reduce the wall thickness of low head, thus effectively reduce its manufacture difficulty; And steam generator water chamber head structure also has good maintenance accessi bility.
Description
Technical field
The utility model relates to pressurized water reactor nuclear power station steam generator field, particularly relates to a kind of water chamber head structure adopting sleeve pipe to carry out the Vertical Natural Circulation Steam Generator connected.
Background technology
The use of nuclear power is the important breakthroughs of the mankind in using energy source history, utilize nuclear fission reaction, the incomparable high-energy of other all traditional fossil energy can be produced export, and these high-energy export often only to be needed to expend a small amount of nuclear fuel, the characteristic of this low input high production, makes mankind's pay attention to day by day to the utilization of nuclear energy, and continues to increase the research and development in nuclear energy field, even to this day, nuclear energy has become the important energy source part of many countries in the world.
In pressurized-water reactor nuclear power plant, steam generator is one of three large equipments in nuclear island, is the hinge connecting primary Ioops system, secondary coolant circuit system.Wherein, primary Ioops system at least comprises reactor pressure vessel, steam generator and is connected to main pipe hot leg, cold section of main pipeline between the two, and cold section of main pipeline is also provided with main pump.The huge energy heats feedwater that reactor core produces because of fuel fission, the feedwater of HTHP is taken reactor pressure vessel out of the heat energy that reactor core produces and enters steam generator, when feeding water by steam generator, by thousands of heat-transfer pipes, the secondary circuit that heat is passed to outside pipe is fed water, feedwater after release heat is sent back to reactor pressure vessel by main pump again, and feedwater is constantly at airtight primary Ioops Inner eycle.
According to the quality producing steam, steam generator is divided into natural circulation steam generator and once through steam generator.The Vertical Natural Circulation Steam Generator generally adopted at present is connected with core pressure vessel, main pump by longer main pipeline, be connected to pressure vessel, main pipeline between main pump and steam generator occupies larger space, therefore the layout between reactor main equipment is compact not, be unfavorable for the layout occasion of the limited space such as offshore applications, and there is the risk of primary pipe rupture.
In addition, for being connected with main pipeline, the low head of steam generator offers two main pipeline interfaces; And low head is also offered two manholes, dependency structure is checked so that staff enters hydroecium, safeguards.So, low head generally at least will offer the relatively large hole of four sizes, and the perforate number on low head is more, make the stress of low head complicated, and the intensity of low head is weakened severely, very high to the mechanical property requirements of low head founding materials, add head thickness simultaneously.
Therefore, be necessary to provide that a kind of structure is simple, open amount is few, can make the steam generator water chamber head structure of the compact in design between each main equipment of reactor, to solve above-mentioned the deficiencies in the prior art.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, open amount is few, can make the steam generator water chamber head structure of the compact in design between each main equipment of reactor.
For achieving the above object, the technical solution of the utility model is: provide a kind of steam generator water chamber head structure, it chamber comprising the first inner sleeve, the second inner sleeve and be located between low head and tube sheet, described chamber is separated into hot water chamber and cold water chamber, and described first inner sleeve, described second inner sleeve are sheathed on described low head respectively and are communicated with described hot water chamber, described cold water chamber respectively hermetically.
Preferably, cylinder section is always provided with between described low head and described tube sheet, be provided with an end socket dividing plate in described straight barrel section, described chamber is located between described end socket dividing plate and described tube sheet, and described first inner sleeve, described second inner sleeve are sheathed on described straight barrel section respectively.
Preferably, have the dividing plate that the short transverse along steam generator is arranged in described chamber, described chamber is separated into described hot water chamber and described cold water chamber by described dividing plate.
Preferably, the bottom of described hot water chamber, described cold water chamber is convexly equipped with the first inner sleeve interface, the second inner sleeve interface respectively, and described first inner sleeve, described second inner sleeve are connected with described first inner sleeve interface, described second inner sleeve sealing joint respectively.
Preferably, described first inner sleeve interface, described second inner sleeve interface all convexedly stretch in described low head.
Preferably, be all connected by labyrinth or seal ring seal between described first inner sleeve with described first inner sleeve interface, between described second inner sleeve with described second inner sleeve interface.
Preferably, the position be positioned at below described end socket dividing plate of described straight barrel section is respectively equipped with the first outer ozzle and the second outer ozzle, and described first inner sleeve is sheathed in described first outer ozzle, and described second inner sleeve is sheathed in described second outer ozzle.
Preferably, between described first inner sleeve and described first outer ozzle, between described second inner sleeve and described second outer ozzle all in eccentric setting.
Preferably, described first inner sleeve, described second inner sleeve are also fixedly connected with described end socket dividing plate respectively by holding firmware.
Preferably, described holding firmware comprises ring-shaped clip and protrudes out the fixed support of formation from described ring-shaped clip, and described fixed support is fixed on described end socket dividing plate, and described ring-shaped clip is arranged in outside described first inner sleeve or described second inner sleeve.
Preferably, described first inner sleeve, described second inner sleeve are all in L-type.
Preferably, described straight barrel section offers manhole, and the bottom of described low head offers weep hole.
Preferably, described straight barrel section offers manhole respectively corresponding to the position of described hot water chamber, described cold water chamber.
Preferably, described low head is spherical in shape or oval.
Preferably, described tube sheet is fixed with the heat exchanger tube in inverted U be connected with described hot water chamber, described cold water chamber respectively.
Compared with prior art, due to steam generator water chamber head structure of the present utility model, by the setting of the first inner sleeve, the second inner sleeve and hot water chamber, cold water chamber, make to be connected by ozzle butt welding between the main equipment such as pressure vessel, steam generator, thus eliminate the main pipeline connected between main equipment, overcome the drawback that need take larger space when being connected by main pipeline between main equipment in prior art, save space, be more suitable for the layout occasion of the limited space such as offshore applications, also reduce loss of-coolant accident (LOCA) risk simultaneously.Reduce the number of openings on low head simultaneously, make the stress distribution on low head more balanced, improve stress state, thus can reduce the wall thickness of low head, thus effectively reduce its manufacture difficulty.Moreover being arranged so that of cavity just can realize exchanging the Non-Destructive Testing of heat pipe and plugging operation by cavity or manhole, has good maintenance accessi bility.And the structure of this water chamber head structure is simple, easily realizes the mounting or dismounting of the first inner sleeve, the second inner sleeve, for the maintenance of main pump is provided convenience.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model steam generator water chamber head structure one embodiment.
Fig. 2 is the enlarged schematic partial view of Fig. 1.
Fig. 3 is the enlarged diagram of holding firmware in Fig. 1.
Fig. 4 is the using state schematic diagram of steam generator water chamber head structure in Fig. 1.
Fig. 5 is the structural representation of another embodiment of the utility model steam generator water chamber head structure.
Fig. 6 is the enlarged diagram of part A in Fig. 5.
Detailed description of the invention
With reference now to accompanying drawing, describe embodiment of the present utility model, element numbers similar in accompanying drawing represents similar element.Water chamber head structure 100 provided by the utility model is applicable to Vertical Natural Circulation Steam Generator, but not as limit.Shown in accompanying drawing, the different embodiments of the utility model water chamber head structure 100 are described respectively.
First referring to shown in Fig. 1, it shows a preferred embodiment of the utility model steam generator water chamber head structure 100.This steam generator water chamber head structure 100 comprises low head 110 in hollow structure, be located at tube sheet 120 above low head 110, be located at chamber 130 between low head 110 and tube sheet 120, and the heat exchanger tube 140 tube sheet 120 is fixed with in inverted U, heat exchanger tube 140 is connected with chamber 130.
In the present embodiment, set up cylinder section 110a always in the upper end of low head 110, tube sheet 120 is located on this straight barrel section 110a, and tube sheet 120 is used for fixing heat exchanger tube 140, and tube sheet 120 is offered simultaneously mudhole and instrumentation tap (not shown).Be installed with an end socket dividing plate 111 in straight barrel section 110a, between the inwall of end socket dividing plate 111, tube sheet 120, straight barrel section 110a, surround described chamber 130, and this chamber 130 is separated into hot water chamber 131 and cold water chamber 132.
Preferably, described low head 110 adopts dome head or ellipsoidal head, but not as limit, this technology be well known to those skilled in the art.
Continue referring to shown in Fig. 1, there is in described chamber 130 compartment spacers 133 that the short transverse along steam generator is arranged, the two ends up and down of compartment spacers 133 abut tube sheet 120, end socket dividing plate 111 respectively, and chamber 130 is separated into described hot water chamber 131 and cold water chamber 132 by compartment spacers 133.The two ends of heat exchanger tube 140 are communicated with hot water chamber 131, cold water chamber 132 respectively by with after tube sheet 120 expanded and welded tube joint.
This steam generator water chamber head structure 100 also comprises the first inner sleeve 150, second inner sleeve 160.First inner sleeve 150, second inner sleeve 160 is sheathed on low head 110 respectively and is communicated with hot water chamber 131, cold water chamber 132 hermetically respectively.In the present embodiment, the first inner sleeve 150, second inner sleeve 160 is sheathed on straight barrel section 110a (referring to aftermentioned) respectively; And the first inner sleeve 150 is connected with reactor pressure vessel end by pressure vessel end inner sleeve (not shown), the second inner sleeve 160 is connected to the inner sleeve (not shown) of the short sleeve be connected with main pump.
When steam generator normally runs, in hot water chamber 131, cold water chamber 132, be full of liquid; Therefore, the outlet fluid of reactor pressure vessel to enter in hot water chamber 131 and realizes sufficient mixed flow and deceleration, thus ensures that the outlet flow physical efficiency of pressure vessel enters heat exchanger tube 140 more equably, make assignment of traffic in heat exchanger tube 140 evenly; Accordingly, the cold fluid completed through heat exchanger tube 140 heat exchange enter cold water chamber 132 and within it realize sufficient mixed flow with slow down laggard enter main pump, reduce the operating temperature of main pump, improve main pump reliability of operation.When steam generator overhauls, the liquid in hot water chamber 131, cold water chamber 132 is all emptying and make both vacant.
Shown in Fig. 1-2, the first inner sleeve interface 134 is convexly equipped with bottom described hot water chamber 131, the bottom of cold water chamber 132 is convexly equipped with the second inner sleeve interface 135, first inner sleeve interface 134, second inner sleeve interface 135 all convexedly stretches in low head 110, is respectively used to realize being tightly connected by labyrinth or sealing ring with the first inner sleeve 150, second inner sleeve 160.In the present embodiment, the outer surface of the first inner sleeve interface 134, second inner sleeve interface 135 all offers annular labyrinth seal groove, makes to form labyrinth seal between the first inner sleeve 150 and the first inner sleeve interface 134, between the second inner sleeve 160 and the second inner sleeve interface 135.
Again referring to shown in Fig. 1, the sidewall of the straight barrel section 110a of low head 110 is respectively equipped with the first outer ozzle 112 and the second outer ozzle 113, the outer ozzle 113 of first outer ozzle 112, second is all positioned at the below of end socket dividing plate 111, and the internal diameter of the first outer ozzle 112 is greater than the external diameter of the first inner sleeve 150, the internal diameter of the second outer ozzle 113 is greater than the external diameter of the second inner sleeve 160.After installation, the first inner sleeve 150 is placed in low head 110 and one end and the first inner sleeve interface 134 are tightly connected, and the other end of the first inner sleeve 150 is sheathed in the first outer ozzle 112, for being connected with pressure vessel inner sleeve (not shown).Second inner sleeve 160 is placed in low head 110 and one end and the second inner sleeve interface 135 are tightly connected, and the other end of the second inner sleeve 160 is sheathed in the second outer ozzle 113, for being connected with main pump inner sleeve (not shown).By the setting of inner sleeve, make to carry out butt welding connection by ozzle between each main equipment, thus eliminate main pipeline of the prior art, reduce loss of-coolant accident (LOCA) risk, overcome the drawback needing to take larger space when being directly connected by main pipeline between steam generator with pressure vessel in prior art simultaneously, make the compact in design between steam generator and pressure vessel, save space, be therefore more suitable for the layout occasion of the limited space such as offshore applications.
Again in conjunction with shown in Fig. 1-2, in the present embodiment, between the first inner sleeve 150 and the first inner sleeve interface 134, between the second inner sleeve 160 and the second inner sleeve interface 135, all adopt arranged off-centre.Fit in the upper inside walls of the first inner sleeve interface 134 for the outer wall of the first inner sleeve 150, first inner sleeve 150, between the first inner sleeve 150 and the downside inwall of the first inner sleeve interface 134, there is a gap 112a.Second inner sleeve 160 and the first inner sleeve 150 are symmetrically installed, and repeat no more, and have gap 113a between the second inner sleeve 160 and the downside inwall of the second inner sleeve interface 135.
Again shown in composition graphs 1-3, the first inner sleeve 150, second inner sleeve 160 is also fixed respectively by holding firmware 170 and supports.Particularly, holding firmware 170 comprises a ring-shaped clip 171 and protrudes out the hold-down support 172 of formation from the side of ring-shaped clip 171, hold-down support 172 offers screwed hole, and end socket dividing plate 111 also offers screwed hole, and to be bolted between hold-down support 172.Example is installed as with the first inner sleeve 150, after the first inner sleeve 150 and the first inner sleeve interface 134 are tightly connected, ring-shaped clip 171 is used to be fixed on outside the first inner sleeve 150, and by mechanical check bolt 173, ring-shaped clip 171 is tightened, and then utilize mechanical check bolt 173 to be fixed on end socket dividing plate 111 by hold-down support 172, realize the fixing of the first inner sleeve 150 and support.The fixed form of the second inner sleeve 160 and the identical of the first inner sleeve 150, no longer repeated description.Fix the first inner sleeve 150, second inner sleeve 160 by ring-shaped clip 171, can Flow vibration be prevented, protection hermetically-sealed construction.
Again referring to Fig. 1, in the present embodiment, the straight barrel section 110a of described low head 110 offers manhole 114, by the setting of manhole 114, is convenient to the inside that staff enters low head 110 and checks dependency structure, safeguards.Meanwhile, the bottommost of low head 110 offers weep hole 115, and weep hole 115 is for the ponding in depleted of steam generator between turn(a)round.In the utility model, owing to decreasing the open amount on low head 110, thus improve the stress situation on low head 110, ensure the intensity of low head 110, the mechanical property requirements of low head 110 founding materials is reduced, reduces head thickness.
In addition, referring to Fig. 1-, 3, when need to overhaul in the heat exchanger tube 140 of inverted U and plugging time, first the connecting portion that the first inner sleeve 150, second inner sleeve 160 is connected with other main equipments is disconnected, then release mechanism check bolt 173, and utilize specific purpose tool to unload the first inner sleeve 150, second inner sleeve 160, like this, namely end socket dividing plate 111 can be the passage that staff overhauls heat exchanger tube 140.
Below referring to shown in Fig. 4, the operation principle of the present embodiment steam generator water chamber head structure 100 is described.
When nuclear power station normally runs, in hot water chamber 131, cold water chamber 132, be all full of liquid.The heat energy that reactor core in primary Ioops reactor pressure vessel is huge because fuel fission produces, utilize the heat heated feed water of primary Ioops, HTHP feedwater after heating enters hot water chamber 131 by the inner sleeve that is connected with pressure vessel, the first inner sleeve 150, HTHP feedwater realizes sufficient mixed flow and deceleration in hot water chamber 131, thus ensures that the outlet flow physical efficiency of pressure vessel enters heat exchanger tube 140 more equably; Heat energy to be passed to the secondary circuit cooling water outside heat exchanger tube 140 by HTHP feedwater by the tube wall of heat exchanger tube 140, the cold water that heat exchange completes is introduced into after cold water chamber 132 slows down fully, again through the second inner sleeve 160, the sleeve pipe that to be connected with main pump inner sleeve and enter main pump, thus reduce the operating temperature of main pump, improve main pump reliability of operation.After cold water is pressurizeed by main pump, send back in low head 110 from the gap 113a between the second inner sleeve 160 and the second ozzle 113 again, gap 112a again between the first inner sleeve 150 and the first outer ozzle 112 returns reactor core, and complete recuperated cycle, its runner as shown in Figure 4.
When steam generator overhauls, the emptying rate of liquid in hot water chamber 131, cold water chamber 132, is convenient to carry out Problem to it.
Shown in Fig. 5-6, another preferred embodiment of the utility model steam generator water chamber head structure 100 is described.
The present embodiment and the difference of above-described embodiment be only to exchange the maintenance of heat pipe 140 and plugging mode different.Particularly, carry out overhauling and plugging for exchanging heat pipe 140 more easily, the straight barrel section 110a of low head 110 offers manhole 116 respectively corresponding to the position of hot water chamber 131, cold water chamber 132, the position of manhole 116 is higher than the position of end socket dividing plate 111, carry out Non-Destructive Testing and plugging operation by manhole 116 convenient exchange heat pipe 140, there is good maintenance accessi bility.
In the present embodiment, other structure and working principle of steam generator water chamber head structure 100 are all same as the previously described embodiments, therefore do not repeating.
Preferably, the first inner sleeve 150, second inner sleeve 160 in above-mentioned two embodiments all roughly all in L-type, but is not limited with this shape.
Due to steam generator water chamber head structure 100 of the present utility model, its chamber 130 is separated into hot water chamber 131 and cold water chamber 132, first inner sleeve 150, second inner sleeve 160 and is sheathed on respectively on low head 110 and is communicated with hot water chamber 131, cold water chamber 132 hermetically respectively.By the setting of the first inner sleeve 150, second inner sleeve 160 and hot water chamber 131, cold water chamber 132, make to be connected by ozzle butt welding between the main equipment such as pressure vessel, steam generator, thus eliminate the main pipeline connected between main equipment, overcome the drawback that need take larger space when being connected by main pipeline between main equipment in prior art, save space, be more suitable for the layout occasion of the limited space such as offshore applications, also reduce loss of-coolant accident (LOCA) risk.Reduce the number of openings on low head 110 simultaneously, make the stress distribution on low head 110 more balanced, improve stress state, thus can reduce the wall thickness of low head 110, thus effectively reduce its manufacture difficulty.Moreover being arranged so that of cavity 130 just can realize exchanging the Non-Destructive Testing of heat pipe 140 and plugging operation by cavity 130 or manhole 116, has good maintenance accessi bility.And the structure of this water chamber head structure 100 is simple, easily realizes the mounting or dismounting of the first inner sleeve 150, second inner sleeve 160, for the maintenance of main pump is provided convenience.
Other structures of the utility model steam generator are well known to those of ordinary skill in the art, are no longer described in detail at this.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (15)
1. a steam generator water chamber head structure, it is characterized in that: the chamber comprising the first inner sleeve, the second inner sleeve and be located between low head and tube sheet, described chamber is separated into hot water chamber and cold water chamber, and described first inner sleeve, described second inner sleeve are sheathed on described low head respectively and are communicated with described hot water chamber, described cold water chamber respectively hermetically.
2. steam generator water chamber head structure as claimed in claim 1, it is characterized in that: between described low head and described tube sheet, be provided with cylinder section always, an end socket dividing plate is provided with in described straight barrel section, described chamber is located between described end socket dividing plate and described tube sheet, and described first inner sleeve, described second inner sleeve are sheathed on described straight barrel section respectively.
3. steam generator water chamber head structure as claimed in claim 1, is characterized in that: have the dividing plate that the short transverse along steam generator is arranged in described chamber, described chamber is separated into described hot water chamber and described cold water chamber by described dividing plate.
4. steam generator water chamber head structure as claimed in claim 1, it is characterized in that: the bottom of described hot water chamber, described cold water chamber is convexly equipped with the first inner sleeve interface, the second inner sleeve interface respectively, and described first inner sleeve, described second inner sleeve are connected with described first inner sleeve interface, described second inner sleeve sealing joint respectively.
5. steam generator water chamber head structure as claimed in claim 4, is characterized in that: described first inner sleeve interface, described second inner sleeve interface all convexedly stretch in described low head.
6. steam generator water chamber head structure as claimed in claim 4, be is characterized in that: be all connected by labyrinth or seal ring seal between described first inner sleeve with described first inner sleeve interface, between described second inner sleeve with described second inner sleeve interface.
7. steam generator water chamber head structure as claimed in claim 2, it is characterized in that: the position be positioned at below described end socket dividing plate of described straight barrel section is respectively equipped with the first outer ozzle and the second outer ozzle, described first inner sleeve is sheathed in described first outer ozzle, and described second inner sleeve is sheathed in described second outer ozzle.
8. steam generator water chamber head structure as claimed in claim 7, is characterized in that: all in eccentric setting between described first inner sleeve and described first outer ozzle, between described second inner sleeve and described second outer ozzle.
9. steam generator water chamber head structure as claimed in claim 2, is characterized in that: described first inner sleeve, described second inner sleeve are also fixedly connected with described end socket dividing plate respectively by holding firmware.
10. steam generator water chamber head structure as claimed in claim 9, it is characterized in that: described holding firmware comprises ring-shaped clip and protrudes out the fixed support of formation from described ring-shaped clip, described fixed support is fixed on described end socket dividing plate, and described ring-shaped clip is arranged in outside described first inner sleeve or described second inner sleeve.
11. steam generator water chamber head structures as described in any one of claim 1-10, is characterized in that: described first inner sleeve, described second inner sleeve are all in L-type.
12. steam generator water chamber head structures as claimed in claim 2, is characterized in that: described straight barrel section offers manhole, and the bottom of described low head offers weep hole.
13. steam generator water chamber head structures as claimed in claim 2, is characterized in that: described straight barrel section offers manhole respectively corresponding to the position of described hot water chamber, described cold water chamber.
14. steam generator water chamber head structures as claimed in claim 1, is characterized in that: described low head is spherical in shape or oval.
15. steam generator water chamber head structures as claimed in claim 1, is characterized in that: described tube sheet is fixed with the heat exchanger tube in inverted U be connected with described hot water chamber, described cold water chamber respectively.
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| CN201520133704.6U CN204665240U (en) | 2015-03-10 | 2015-03-10 | Steam generator water chamber head structure |
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| CN201520133704.6U CN204665240U (en) | 2015-03-10 | 2015-03-10 | Steam generator water chamber head structure |
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| CN204665240U true CN204665240U (en) | 2015-09-23 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913889A (en) * | 2016-07-05 | 2016-08-31 | 上海核工程研究设计院 | Three-loop nuclear energy system |
| CN105913882A (en) * | 2016-07-05 | 2016-08-31 | 上海核工程研究设计院 | Water chamber seal head cavity structure of steam generator |
| CN105931677A (en) * | 2016-07-05 | 2016-09-07 | 上海核工程研究设计院 | Nuclear reactor system |
| CN105957560A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor body structure of reactor of pressurized water reactor nuclear power plant |
| CN105957566A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor loop main equipment |
| CN106098109A (en) * | 2016-07-05 | 2016-11-09 | 上海核工程研究设计院 | A kind of nuclear reactor system |
| CN106765026A (en) * | 2017-01-05 | 2017-05-31 | 上海核工程研究设计院 | A kind of steam generator water chamber head imports and exports ozzle integral structure |
| CN106855158A (en) * | 2017-01-20 | 2017-06-16 | 中广核研究院有限公司 | double-layer sleeve structure and nuclear reactor |
| CN107270269A (en) * | 2017-05-05 | 2017-10-20 | 中广核研究院有限公司 | Multiple-unit pipe type steam generator |
| CN107965620A (en) * | 2018-01-03 | 2018-04-27 | 上海核工程研究设计院有限公司 | A kind of steam generator water chamber head ozzle closure plate |
| CN109915677A (en) * | 2019-03-06 | 2019-06-21 | 中广核研究院有限公司 | A kind of steam generator and dual channel structure with corrugated pipe connection structure |
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2015
- 2015-03-10 CN CN201520133704.6U patent/CN204665240U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913889A (en) * | 2016-07-05 | 2016-08-31 | 上海核工程研究设计院 | Three-loop nuclear energy system |
| CN105913882A (en) * | 2016-07-05 | 2016-08-31 | 上海核工程研究设计院 | Water chamber seal head cavity structure of steam generator |
| CN105931677A (en) * | 2016-07-05 | 2016-09-07 | 上海核工程研究设计院 | Nuclear reactor system |
| CN105957560A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor body structure of reactor of pressurized water reactor nuclear power plant |
| CN105957566A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor loop main equipment |
| CN106098109A (en) * | 2016-07-05 | 2016-11-09 | 上海核工程研究设计院 | A kind of nuclear reactor system |
| CN106765026A (en) * | 2017-01-05 | 2017-05-31 | 上海核工程研究设计院 | A kind of steam generator water chamber head imports and exports ozzle integral structure |
| CN106855158A (en) * | 2017-01-20 | 2017-06-16 | 中广核研究院有限公司 | double-layer sleeve structure and nuclear reactor |
| CN107270269A (en) * | 2017-05-05 | 2017-10-20 | 中广核研究院有限公司 | Multiple-unit pipe type steam generator |
| CN107965620A (en) * | 2018-01-03 | 2018-04-27 | 上海核工程研究设计院有限公司 | A kind of steam generator water chamber head ozzle closure plate |
| CN109915677A (en) * | 2019-03-06 | 2019-06-21 | 中广核研究院有限公司 | A kind of steam generator and dual channel structure with corrugated pipe connection structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building 15 layer (1502-1504, 1506) Patentee after: CHINA NUCLEAR POWER TECHNOLOGY RESEARCH INSTITUTE Patentee after: China General Nuclear Power Corporation Patentee after: China wide nuclear electricity incorporated company Address before: 518000 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building 15 layer (1502-1504, 1506) Patentee before: Zhongkehua Nuclear Power Technology Institute Co., Ltd. Patentee before: China General Nuclear Power Corporation Patentee before: China wide nuclear electricity incorporated company |