CN204596428U - The Class PWR Plants reactor core of a kind of employing 177 fuel assemblies - Google Patents
The Class PWR Plants reactor core of a kind of employing 177 fuel assemblies Download PDFInfo
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- CN204596428U CN204596428U CN201520302224.8U CN201520302224U CN204596428U CN 204596428 U CN204596428 U CN 204596428U CN 201520302224 U CN201520302224 U CN 201520302224U CN 204596428 U CN204596428 U CN 204596428U
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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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Abstract
The utility model discloses the Class PWR Plants reactor core of a kind of employing 177 fuel assemblies, comprise 157 fuel assemblies that 157 active lengths are 3.6 meters to 4.3 meters, 157 fuel assemblies are by one-tenth 15 row arranged in parallel, 15 row, form the reactor core of existing million kilowatt Three links theory presurized water reactor, also comprise 20 fuel assemblies, the surrounding being arranged in parallel within existing reactor core periphery of 20 fuel assembly symmetries, forms 15 row, the 15 new reactor cores arranged that are made up of 177 fuel assemblies.Have the reactor core periphery of million kilowatt Three links theory presurized water reactor to increase by 20 fuel assemblies existing, the power density that each fuel assembly is born reduces, and thermal technology's safety allowance is improved.When fuel rod active length and reactor core thermal power rating identical, power density of the present utility model reduces 11.3%.
Description
Technical field
The utility model relates to pressurized-water reactor nuclear power plant nuclear reactor art field, especially a kind of reactor core for million kilowatt nuclear power station reactor.
Background technology
Fuel assembly is the important component part of reactor core, and Core Design is one of key Design content of nuclear power station.The main task of reactor core design provides from the angle of reactor physics the reactor core meeting pressurized-water reactor nuclear power plant general design requirement, comprises and determine fuel assembly number, the fuel assembly layout etc. at reactor core.
Current million kilowatt Three links theory pressurized-water reactor nuclear power plant reactor core forms primarily of 157 fuel assemblies, and its core power density is comparatively large, and thermal technology's safety allowance is relatively low.
Utility model content
Namely the purpose of this utility model is the deficiency overcoming prior art, provides a kind of core power density lower, the Class PWR Plants reactor core that thermal technology's safety allowance is higher.
The purpose of this utility model is achieved through the following technical solutions:
The Class PWR Plants reactor core of a kind of employing 177 fuel assemblies, comprise 157 fuel assemblies that 157 active lengths are 3.6 meters to 4.3 meters, 157 fuel assemblies are by one-tenth 15 row arranged in parallel, 15 row, form the reactor core of existing million kilowatt Three links theory presurized water reactor, it is characterized in that: also comprise 20 fuel assemblies, the surrounding being arranged in parallel within existing reactor core periphery of 20 fuel assembly symmetries, forms 15 row, the 15 new reactor cores arranged that are made up of 177 fuel assemblies; In new reactor core, 20 fuel assemblies are arranged in the outside of existing reactor core the 1st row, the 3rd row, the 5th row, the 6th row, the 10th row, the 11st row, the 13rd row, the 15th row two ends fuel assembly respectively; Wherein, the 1st row and the 15th row two ends of existing reactor core respectively increase by 2 fuel assemblies, and the 3rd row of existing reactor core, the 5th row, the 6th row, the 10th row, the 11st row, the 13rd row two ends respectively increase by 1 fuel assembly.
Further, the square matrix that described fuel assembly internal arrangement becomes 17 row * 17 to arrange, comprising 264 fuel rods, 24 control rod guide pipes and 1 measurement instrument pipe.
Further, described measurement instrument pipe is positioned at center, fuel assembly inside;
Described control rod guide pipe lays respectively at:
6th row of the 3rd row, the 9th row, the 12nd row;
4th row of the 4th row, the 14th row;
3rd row of the 6th row, the 6th row, the 9th row, the 12nd row, the 15th row;
3rd row of the 9th row, the 6th row, the 12nd row, the 15th row;
3rd row of the 12nd row, the 6th row, the 9th row, the 12nd row, the 15th row;
4th row of the 14th row, the 14th row;
6th row of the 15th row, the 9th row, the 12nd row.
Advantage of the present utility model and beneficial effect are:
Have the reactor core periphery of million kilowatt Three links theory presurized water reactor to increase by 20 fuel assemblies existing, the power density that each fuel assembly is born reduces, and thermal technology's safety allowance is improved.When fuel rod active length and reactor core thermal power rating identical, power density of the present utility model reduces 11.3%.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiment of the present utility model, be briefly described to the accompanying drawing used required for describing in the utility model embodiment below.Apparent, the accompanying drawing in the following describes is only some embodiments recorded in the utility model, to those skilled in the art, when not paying creative work, according to accompanying drawing below, can also obtain other accompanying drawing.
Fig. 1 is plan structure schematic diagram of the present utility model;
Fig. 2 is the inside top structural representation of fuel assembly;
Wherein, the parts title that Reference numeral is corresponding is as follows:
The fuel assembly of 1-existing million kilowatt Three links theory pressurized water reactor core, the fuel assembly that 2-the utility model increases, 3-fuel rod, 4-control rod guide pipe, 5-measurement instrument pipe.
Embodiment
In order to make those skilled in the art understand the utility model better, below in conjunction with the accompanying drawing in the utility model embodiment, clear, complete description is carried out to the technical scheme in the utility model embodiment.Apparent, embodiment described below is only the part in the utility model embodiment, instead of all.Based on the embodiment that the utility model is recorded, other all embodiment that those skilled in the art obtain when not paying creative work, all in the scope of the utility model protection.
Embodiment:
In Fig. 1, white is the reactor core of existing million kilowatt Three links theory presurized water reactor, and comprising 157 active lengths is that 157 fuel assemblies, 1,157 fuel assemblies 1 of 3.6 meters to 4.3 meters are by one-tenth 15 row arranged in parallel, 15 row.
The present embodiment, on the basis of existing reactor core, increases the surrounding being arranged in parallel within existing reactor core periphery of 20 fuel assemblies, 2,20 fuel assembly 2 symmetries, forms 15 row, the 15 new reactor cores arranged that are made up of 177 fuel assemblies.
In new reactor core, 20 fuel assemblies 2 are arranged in the outside of existing reactor core the 1st row, the 3rd row, the 5th row, the 6th row, the 10th row, the 11st row, the 13rd row, the 15th row two ends fuel assembly 1 respectively;
Wherein, the 1st row and the 15th row two ends of existing reactor core respectively increase by 2 fuel assemblies 2, and the 3rd row of existing reactor core, the 5th row, the 6th row, the 10th row, the 11st row, the 13rd row two ends respectively increase by 1 fuel assembly 2.
As shown in Figure 2, the square matrix that described fuel assembly internal arrangement becomes 17 row * 17 to arrange, comprising 264 fuel rods, 3,24 control rod guide pipes 4 and 1 measurement instrument pipe 5.
Described measurement instrument pipe 5 is positioned at center, fuel assembly inside;
Described control rod guide pipe 4 lays respectively at:
6th row of the 3rd row, the 9th row, the 12nd row;
4th row of the 4th row, the 14th row;
3rd row of the 6th row, the 6th row, the 9th row, the 12nd row, the 15th row;
3rd row of the 9th row, the 6th row, the 12nd row, the 15th row;
3rd row of the 12nd row, the 6th row, the 9th row, the 12nd row, the 15th row;
4th row of the 14th row, the 14th row;
6th row of the 15th row, the 9th row, the 12nd row.
For the reactor core of fuel assembly active length 3.66 meters, when reactor core thermal power rating is identical, the power density that in the present embodiment, single subassembly bears reduces 11.3%.When reactor core thermal power rating is higher than existing reactor core, the power density that in the present embodiment, single subassembly bears is also lower than existing reactor core.Concrete condition is as shown in table 1.
As mentioned above, just the utility model can be realized preferably.
Claims (3)
1. one kind adopts the Class PWR Plants reactor core of 177 fuel assemblies, comprise 157 fuel assemblies that 157 active lengths are 3.6 meters to 4.3 meters, 157 fuel assemblies are by one-tenth 15 row arranged in parallel, 15 row, form the reactor core of existing million kilowatt Three links theory presurized water reactor, it is characterized in that:
Also comprise 20 fuel assemblies, the surrounding being arranged in parallel within existing reactor core periphery of 20 fuel assembly symmetries, form 15 row, the 15 new reactor cores arranged that are made up of 177 fuel assemblies;
In new reactor core, 20 fuel assemblies are arranged in the outside of existing reactor core the 1st row, the 3rd row, the 5th row, the 6th row, the 10th row, the 11st row, the 13rd row, the 15th row two ends fuel assembly respectively;
Wherein, the 1st row and the 15th row two ends of existing reactor core respectively increase by 2 fuel assemblies, and the 3rd row of existing reactor core, the 5th row, the 6th row, the 10th row, the 11st row, the 13rd row two ends respectively increase by 1 fuel assembly.
2. the Class PWR Plants reactor core of a kind of employing according to claim 1 177 fuel assemblies, is characterized in that:
The square matrix that described fuel assembly internal arrangement becomes 17 row * 17 to arrange, comprising 264 fuel rods, 24 control rod guide pipes and 1 measurement instrument pipe.
3. the Class PWR Plants reactor core of a kind of employing according to claim 2 177 fuel assemblies, is characterized in that:
Described measurement instrument pipe is positioned at center, fuel assembly inside;
Described control rod guide pipe lays respectively at:
6th row of the 3rd row, the 9th row, the 12nd row;
4th row of the 4th row, the 14th row;
3rd row of the 6th row, the 6th row, the 9th row, the 12nd row, the 15th row;
3rd row of the 9th row, the 6th row, the 12nd row, the 15th row;
3rd row of the 12nd row, the 6th row, the 9th row, the 12nd row, the 15th row;
4th row of the 14th row, the 14th row;
6th row of the 15th row, the 9th row, the 12nd row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520302224.8U CN204596428U (en) | 2015-05-12 | 2015-05-12 | The Class PWR Plants reactor core of a kind of employing 177 fuel assemblies |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520302224.8U CN204596428U (en) | 2015-05-12 | 2015-05-12 | The Class PWR Plants reactor core of a kind of employing 177 fuel assemblies |
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| Publication Number | Publication Date |
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| CN204596428U true CN204596428U (en) | 2015-08-26 |
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| CN201520302224.8U Active CN204596428U (en) | 2015-05-12 | 2015-05-12 | The Class PWR Plants reactor core of a kind of employing 177 fuel assemblies |
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2015
- 2015-05-12 CN CN201520302224.8U patent/CN204596428U/en active Active
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