CN107559233A - Core main pump water passage - Google Patents
Core main pump water passage Download PDFInfo
- Publication number
- CN107559233A CN107559233A CN201710844171.6A CN201710844171A CN107559233A CN 107559233 A CN107559233 A CN 107559233A CN 201710844171 A CN201710844171 A CN 201710844171A CN 107559233 A CN107559233 A CN 107559233A
- Authority
- CN
- China
- Prior art keywords
- passage
- rectification
- impeller
- main pump
- exit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 8
- 239000011888 foil Substances 0.000 claims abstract description 16
- 238000013461 design Methods 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 abstract 2
- 238000005381 potential energy Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000003460 anti-nuclear Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to Small nuclear power plant with a seed nucleus main pump hydraulic channel design, the intake section (1 1) of rectification passage (1) is connected with foil nozzle (2), the exit portion of foil nozzle (2) is connected with the intake section of impeller passage (3), and the exit portion of impeller passage (3) is connected with the exit passageway (1 2) of rectification passage (1).The present invention plays a part of rectification liquid in pump installation and transmits liquid.Be delivered to the exit of pump after the liquid increase potential energy for pump intake being flowed into the presence of impeller.The water passage structure is the part of reactor coolant loop pressure boundary, subjects the high temperature and high pressure of reactor system, can ensure the structural intergrity of reactor coolant pressure boundary.
Description
Technical field：The present invention relates to a seed nucleus main pump water passage.
Background technology：Nuclear reactor power device of the International Atomic Energy Agency (IAEA) electrical power below 300 megawatts
It is defined as " small-sized heap ", nuclear reactor power device of the generated output between 300-600 megawatts is defined as " medium-sized heap ", the two
It is referred to as " middle-size and small-size nuclear reactor ", English abbreviation SMR (Small and Medium-sized Reactors).Middle-size and small-size core
Reactor and large nuclear-power above have their own characteristics each in technology and application, complemented one another.To meet different demands, IAEA actively encourages to send out
Open up the small-sized heap of modular of safe and reliable, viable economically and anti-nuclear proliferation.The Nuclear Power developed country is in development large nuclear-power
While unit, also all include light water reactor, high temperature gas-cooled in actively research and development multipurpose modular Small reactor, these small-sized heaps
Heap, liquid metal cooled fast neutron pile, MSR etc..
In recent years, external many nuclear power technology developed countries include the U.S., Russia, Argentina, South Korea, Japan, South Africa
Deng state, to be all directed to researching and developing security good and have the middle-size and small-size multipurpose reactor of economic competitiveness, is mainly used in generating electricity,
Thermoelectricity, water power alliance and other specific uses etc. can be also taken into account, a part of middle-size and small-size reactor has been enter into the engineering research stage.
External such pump in recent years drives to maturity stage soon.Many nuclear power technology developed countries be directed to researching and developing security it is good,
There is the middle-size and small-size multipurpose reactor of economic competitiveness again.
At present, the single coastal large nuclear-power unit of development can not adapt to the requirement of the wide model application of nuclear energy completely.From nuclear power
The market demand sees that the supply of electric power of developed country and medium-developed country has tended to saturation.Following nuclear power demand will gradually turn
Country and the hinterland of the developing countries and energy shortage are moved on to, these countries and regions are by geographical position, geology, gas
As, the limitation of water source, economic capability and net capacity, it is not suitable for building large nuclear-power unit.And the design object of small-sized heap is also
The generation that accident is eliminated from root original is focused on, eliminates primary Ioops main pipeline, so as to elimination reaction heap cooling system dehydration thing
Therefore and effectively it can reduce off site emergency measure and human intervention when running into emergency episode.At present, because the small cores are anti-
Heap core main pump technology is answered still to belong to blank at home, therefore the hydraulic part designing technique of small cores main pump is even more no technology is available for
With reference to all needs are started from scratch.
The content of the invention：It is an object of the invention to provide simple in construction, stable performance, reliable, safety the anti-heap of small cores to make
One seed nucleus main pump hydraulic passage.The technical scheme is that：One seed nucleus main pump hydraulic passage, passage is by rectification passage
(1), foil nozzle (2), impeller passage (3) composition, the intake section (1-1) of rectification passage (1) are connected with foil nozzle (2)
Connect, the exit portion of foil nozzle (2) is connected with the intake section of impeller passage (3), the exit portion of impeller passage (3) with
The exit passageway (1-2) of rectification passage (1) is connected.
The inside of the exit passageway (1-2) of rectification passage (1) is cavity (1-3), the exit passageway (1- of rectification passage (1)
2) internal to have seven pieces of blades, the access road (1-1) of rectification passage (1) is in horn-like ring-type pipe fitting, inside there is 7 pieces of blades.
A seed nucleus main pump hydraulic passage described in claim 1, it is characterized in that：There are seven pieces of blades in foil nozzle (2).
There are 5 pieces of blades inside impeller passage (3), blade is axial--flow blading.
The present invention the course of work be：Medium enters foil nozzle (2) from the intake section (1-1) of rectification passage (1)
Afterwards, after impeller passage (3) enters back into exit passageway (1-2), so as to complete flow transition of the medium in water passage.
The present invention technological merit be：
1st, channel design of the invention can be turned through 180 degree liquid in as far as possible small dimensional space, realize liquid
The change of flow direction.
2nd, channel design of the present invention is simple, and installation and removal are very convenient.
3rd, channel design of the present invention eliminates the problem of conventional inner flow passage difficult processing, can use forging milling to process,
Measurement is convenient.
4th, it is cavity (1-3) that channel design exit portion (1-2) of the present invention is internal, can reduce the metalwork of whole pump assembly
Weight.
6th, have seven pieces of blades inside the rectification passage (1) of channel design of the present invention, to the liquid in intake section (1-1) and
Liquid in exit portion (1-2) carries out rectified action.
7th, there are seven pieces of blades inside the foil nozzle (2) of channel design of the present invention, after its rectification and changing direction
Liquid is carried out again after impeller passage (3) adds energy, then by the exit portion (1-2) of rectification passage (1) to liquid
Rectification, it ensure that high energy liquid is stable and enter in pressure vessel.
8th, there is the groove (1-4) of one week at the cylindrical place of channel design exit passageway (1-2) of the present invention, is used when assembling pump assembly
Carry out ring installation use, ensure the sealing between pressure vessel.
9th, it is in horn-like ring-type pipe fitting that the intake section (1-1) of channel design rectification passage (1) of the present invention, which is, can be quick
Ensure that fluid flow state is steady, not acute variation.
Brief description of the drawings：
Fig. 1 is core Structure of RCP schematic diagram of the present invention
Embodiment：As shown in figure 1, a seed nucleus main pump hydraulic passage, passage by rectification passage 1, foil nozzle 2,
Impeller passage 3 forms, and the intake section 1-1 of rectification passage 1 is connected with foil nozzle 2, the exit portion and leaf of foil nozzle 2
The intake section of wheel passage 3 is connected, and the exit portion of impeller passage 3 is connected with the exit passageway 1-2 of rectification passage 1.
The exit passageway 1-2 of rectification passage 1 inside is cavity 1-3, has seven inside the exit passageway 1-2 of rectification passage 1
Piece blade, the access road 1-1 of rectification passage 1 is in horn-like ring-type pipe fitting, inside there is 7 pieces of blades.
There are seven pieces of blades in foil nozzle 2.
There are 5 pieces of blades inside impeller passage 3, blade is axial--flow blading.
Claims (4)
1. a seed nucleus main pump hydraulic passage, it is characterized in that：Passage is by rectification passage (1), foil nozzle (2), impeller passage (3) group
Into the intake section (1-1) of rectification passage (1) is connected with foil nozzle (2), the exit portion and impeller of foil nozzle (2)
The intake section of passage (3) is connected, and the exit portion of impeller passage (3) is connected with the exit passageway (1-2) of rectification passage (1)
Connect.
2. seed nucleus main pump hydraulic passage according to claim 1, it is characterized in that：Exit passageway (the 1- of rectification passage (1)
2) inside is cavity (1-3), has seven pieces of blades inside the exit passageway (1-2) of rectification passage (1), rectification passage (1) enters
Mouth passage (1-1) is in horn-like ring-type pipe fitting, inside there is 7 pieces of blades.
3. seed nucleus main pump hydraulic passage according to claim 1, it is characterized in that：There are seven pieces of blades in foil nozzle (2).
4. seed nucleus main pump hydraulic passage according to claim 1, it is characterized in that：There are 5 pieces of leaves inside impeller passage (3)
Piece, blade are axial--flow blading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710844171.6A CN107559233A (en) | 2017-09-19 | 2017-09-19 | Core main pump water passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710844171.6A CN107559233A (en) | 2017-09-19 | 2017-09-19 | Core main pump water passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107559233A true CN107559233A (en) | 2018-01-09 |
Family
ID=60981316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710844171.6A Pending CN107559233A (en) | 2017-09-19 | 2017-09-19 | Core main pump water passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107559233A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4233116A (en) * | 1975-06-10 | 1980-11-11 | Westinghouse Electric Corp. | Nuclear reactor coolant transport system |
| CN104005963A (en) * | 2014-05-23 | 2014-08-27 | 哈尔滨电气动力装备有限公司 | Main pump structure for small nuclear power plant |
| CN203962425U (en) * | 2014-07-24 | 2014-11-26 | 沈阳鼓风机集团申蓝机械有限公司 | Reactor coolant pump hydraulic model |
| CN204985055U (en) * | 2015-09-15 | 2016-01-20 | 哈尔滨电气动力装备有限公司 | Nuclear main pump impeller |
| CN106599392A (en) * | 2016-11-25 | 2017-04-26 | 江苏大学 | Multidisciplinary optimization design method for heavy metal axial flow pump |
| CN207393551U (en) * | 2017-09-19 | 2018-05-22 | 哈尔滨电气动力装备有限公司 | Core main pump water passage |
-
2017
- 2017-09-19 CN CN201710844171.6A patent/CN107559233A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4233116A (en) * | 1975-06-10 | 1980-11-11 | Westinghouse Electric Corp. | Nuclear reactor coolant transport system |
| CN104005963A (en) * | 2014-05-23 | 2014-08-27 | 哈尔滨电气动力装备有限公司 | Main pump structure for small nuclear power plant |
| CN203962425U (en) * | 2014-07-24 | 2014-11-26 | 沈阳鼓风机集团申蓝机械有限公司 | Reactor coolant pump hydraulic model |
| CN204985055U (en) * | 2015-09-15 | 2016-01-20 | 哈尔滨电气动力装备有限公司 | Nuclear main pump impeller |
| CN106599392A (en) * | 2016-11-25 | 2017-04-26 | 江苏大学 | Multidisciplinary optimization design method for heavy metal axial flow pump |
| CN207393551U (en) * | 2017-09-19 | 2018-05-22 | 哈尔滨电气动力装备有限公司 | Core main pump water passage |
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