CN205722810U - A kind of nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling - Google Patents
A kind of nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling Download PDFInfo
- Publication number
- CN205722810U CN205722810U CN201620407446.0U CN201620407446U CN205722810U CN 205722810 U CN205722810 U CN 205722810U CN 201620407446 U CN201620407446 U CN 201620407446U CN 205722810 U CN205722810 U CN 205722810U
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- CN
- China
- Prior art keywords
- nozzle
- power station
- nuclear power
- spraying cooling
- exhausted fuels
- 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.)
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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
Abstract
This utility model provides a kind of nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling, including nozzle body and spout body；Described nozzle body and spout body form inlet, minor air cell and spout by thread connection, and described inlet is tangent with described minor air cell；Described spout body one end is cone.The nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling that this utility model provides, by optimizing geometric properties coefficient, has reached spentnuclear fuel pond spraying cooling spraying swath and the technical performance index of flux density.
Description
Technical field
This utility model relates to a kind of nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling.
Background technology
Under the extreme accident conditions of nuclear power station, spentnuclear fuel pond spray system can be used for weary combustion when pond surprisingly empties
The cooling of material assembly.Nozzle directly influences spray system as the most critical parts of this system, its performance
Area coverage and these two important indicators of flux density.For ensureing the sufficiently cool, for core of irradiated fuel assembly
Spentnuclear fuel pond, power station spray nozzle under specific spray height, pressure and setting angle, should be able to meet with
Lower requirement: spraying swath reaches the width in spentnuclear fuel pond；The flux density of key area disclosure satisfy that takes away decay heat
Required evaporated water.
It is reported, the most domestic disclosed nozzle is used for chemical industry, desalinization, boiler combustion, plants
The fields such as guarantor, they are more concerned with the technology such as the atomizing effect of nozzle, uniform cloth liquid, separating property, no
It is well positioned to meet the requirement of spentnuclear fuel pond spraying cooling；And the overall centrifugal structure form nozzle of routine is
Cast member, processing technique is complicated, and geometric properties coefficient is definite value, for meeting Nuclear Power Station's Exhausted Fuels pond spray system
System spraying swath and the requirement of flow distribution, need polytype nozzle to combine realization, and pipe-line system distribution is multiple
Miscellaneous, cost is high.
Utility model content
This utility model, for the deficiencies in the prior art, proposes one for Nuclear Power Station's Exhausted Fuels pond spraying cooling
Nozzle.
Nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling uses split centrifugal structure form, including nozzle
Body and spout body；Described nozzle body and spout body form inlet, minor air cell and spout by thread connection,
Described inlet is tangent with described minor air cell；Described spout body one end is cone.
Preferably, the radius R of described inlet, eccentric throw A, spray orifice radius r are configured by different groups
Close and form different geometric properties coefficient (A × r × sin β)/R2。
Preferably, the geometric properties coefficient value of described spout body is 0.8～2.1.
Preferably, vent length L of described spout body is 1～2 with the ratio of radius r.
Preferably, the conicity angles alpha of described spout body is 30 °.
Compared with prior art, this utility model has the advantages that
1, the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling that this utility model provides, liquid is at pressure
Effect is lower to be entered in nozzle, and in utilizing nozzle, eccentric throw makes liquid in rotation, accelerates spray in spout convergent passage
Going out hollow diffusion taper liquid film, there is high speed difference in liquid and outside air, and mutual collision rift is broken, atomization.
2, the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling that this utility model provides, by optimizing geometry
Characteristic coefficient, has reached spentnuclear fuel pond spraying cooling spraying swath and the technical performance index of flux density.
Accompanying drawing explanation
Fig. 1 is the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling meeting this utility model preferred embodiment
Schematic front view.
Fig. 2 is the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling meeting this utility model preferred embodiment
Schematic top plan view.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with attached
This utility model is described in further detail by figure and detailed description of the invention.
As shown in Figure 1-2, the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling uses split centrifugal structure
Form, including nozzle body 1 and spout body 2；Described nozzle body 1 and spout body 2 are formed by thread connection
Inlet 3, minor air cell 4 and spout 5, described inlet 3 is tangent with described minor air cell 4；Described spout body
2 one end are cone.Liquid enters nozzle chamber 1 from inlet 3, from spray after minor air cell 4 is fully rotatable
Mouth 5 injection.The parameters such as the inlet radius R of nozzle, eccentric throw A, spray orifice radius r are to affect nozzle performance
Major parameter, its formed geometric properties coefficient directly affect the size of spraying swath and the distribution character of flow.
Preferably, the radius R of described inlet 3, eccentric throw A, spray orifice radius r are configured by different
Combination forms different geometric properties coefficient (A × r × sin β)/R2, meet Nuclear Power Station's Exhausted Fuels pond spray
Cooling nozzle spraying swath and the requirement of flow distribution.
Preferably, the geometric properties coefficient value of described spout body 2 is 0.8～2.1.
Preferably, vent length L of described spout body 2 is 1～2 with the ratio of radius r.
Preferably, the conicity angles alpha of described spout body 2 is 30 °.
The pressure potential of fluid transfers speed kinetic energy to, and liquid becomes taper liquid film at nozzle exit, works as geometry
Characteristic coefficient value is 0.8～2.1, and vent length L is 1～2 with the ratio of radius r, the conicity angles alpha of spout body
When being 30 °, test shows that exit velocity can make liquid reach enough spraying swath, liquid film and air collision rift
The drop formed lands in coverage.
Compared with prior art, the present embodiment has the advantages that
1, the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling that the present embodiment provides, liquid is at the work of pressure
With in lower entrance nozzle, in utilizing nozzle, eccentric throw makes liquid in rotation, accelerates ejection in spout convergent passage
There is high speed difference in hollow diffusion taper liquid film, liquid and outside air, mutual collision rift is broken, atomization.
2, the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling that the present embodiment provides, special by optimizing geometry
Levy coefficient, reach spentnuclear fuel pond spraying cooling spraying swath and the technical performance index of flux density.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is
With the difference of other embodiments, between each embodiment, identical similar portion sees mutually.For
For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so the comparison described is simple
Single, relevant part sees method part and illustrates.
Each specifically should being used for can be used different methods to realize described merit by those skilled in the art
Can, but this realization is it is not considered that exceed scope of the present utility model.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to utility model
The spirit and scope of utility model.So, if these amendments of the present utility model and modification belong to this practicality
Within the scope of novel claim and equivalent technologies thereof, then this utility model be also intended to include these change and
Including modification.
Claims (5)
1. the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling, it is characterised in that include nozzle body and
Spout body；Described nozzle body and spout body form inlet, minor air cell and spout, institute by thread connection
State inlet tangent with described minor air cell；Described spout body one end is cone.
2. the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling as claimed in claim 1, it is characterised in that
The radius R of described inlet, eccentric throw A, spray orifice radius r are configured and are formed different by different combinations
Geometric properties coefficient (A × r × sin β)/R2。
3. the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling as claimed in claim 2, it is characterised in that
The geometric properties coefficient value of described spout body is 0.8～2.1.
4. the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling as claimed in claim 1, it is characterised in that
Vent length L of described spout body is 1～2 with the ratio of radius r.
5. the nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling as claimed in claim 1, it is characterised in that
The conicity angles alpha of described spout body is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620407446.0U CN205722810U (en) | 2016-05-06 | 2016-05-06 | A kind of nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620407446.0U CN205722810U (en) | 2016-05-06 | 2016-05-06 | A kind of nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205722810U true CN205722810U (en) | 2016-11-23 |
Family
ID=57304412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620407446.0U Active CN205722810U (en) | 2016-05-06 | 2016-05-06 | A kind of nozzle for Nuclear Power Station's Exhausted Fuels pond spraying cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205722810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788677A (en) * | 2016-05-06 | 2016-07-20 | 上海核工程研究设计院 | Spray nozzle for spray cooling of spent fuel pool of nuclear power plant |
-
2016
- 2016-05-06 CN CN201620407446.0U patent/CN205722810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788677A (en) * | 2016-05-06 | 2016-07-20 | 上海核工程研究设计院 | Spray nozzle for spray cooling of spent fuel pool of nuclear power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |