CN203026155U - Spraying device applied to pressurizer relief tank of pressurized water reactor nuclear power plant - Google Patents
Spraying device applied to pressurizer relief tank of pressurized water reactor nuclear power plant Download PDFInfo
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- CN203026155U CN203026155U CN2012206903395U CN201220690339U CN203026155U CN 203026155 U CN203026155 U CN 203026155U CN 2012206903395 U CN2012206903395 U CN 2012206903395U CN 201220690339 U CN201220690339 U CN 201220690339U CN 203026155 U CN203026155 U CN 203026155U
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- spray
- axis
- fog
- relief tank
- pipe
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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 relates to a spraying device applied to a pressurizer relief tank of a pressurized water reactor nuclear power plant. The spraying device is arranged in a top area in the sealed tank shaped relief tank and composed of a spray main pipe, two spray branch pipes, and a connection pipe, wherein the spray main pipe extends into the relief tank from the top of the relief tank; the two spray branch pipes are arranged in parallel, and the axial center positions of the two spray branch pipes are communicated by the connection pipe; one end, which is located outside the relief tank, of the spray main pipe is connected with a water source; one end, which is located inside the relief tank, of the spray main pipe is connected with the axial center position of the connection pipe; the axis of the spray main pipe, the axis of the spray branch pipes and the axis of the connection pipe are perpendicular with each other. The two spray pipes are arranged in parallel, the spray amount and the spray range are increased, and simultaneously other connection pieces are prevented from being mounted above the inner part of the cylinder body of the relief tank, the spraying device is convenient to arrange and mount; the number of spray heads is increased, and the flow of the single spray head is properly reduced, thus the spraying is more uniform; and moreover the spray heads are mounted in certain angles, thus the spraying range is larger.
Description
Technical field
The present invention relates to nuclear power station engineered safety system field, be specifically related to a kind of spray equipment that is applied to the pressurized-water reactor nuclear power plant pressurizer relief tank.
Background technology
The major function of nuclear power plant voltage stabilizer release case is to collect and high temperature and high pressure steam that condensing cooling enters from pressurizer safety valve or relief valve; What in addition, the release case collected also that other security systems are discharged from the power station is hydrophobic.
It is inner that the spray equipment of release case is arranged on the release case, is used for making decrease temperature and pressure in the release case, and makes steam in release case headroom faster cooling and mix with water.The quality of its performance directly has influence on release the temperature inside the box and pressure, and the normal operation of related system.
The spray equipment of commonly using at present is that the top in release case cylindrical shell fills one along the axial arranged shower of cylindrical shell, three centrifugal fog-spray nozzles vertically downward is housed, in order to spray cold water on it.The problems such as there is the less and skewness of spray scope in this design and affected by other adapters that install the inner barrel top, and arrangement space is limited.
Summary of the invention
The technical matters that will solve of the present invention is to provide a kind of pressurized-water reactor nuclear power plant release case spray equipment that can increase the spray scope, improve uniform spraying and steam-water mixing efficient and convenient layout installation.
In order to solve the problems of the technologies described above, technical scheme of the present invention is, a kind of spray equipment that is applied to the pressurized-water reactor nuclear power plant pressurizer relief tank, and it is arranged on sealable tank shape release case inner top zone, comprises a female pipe of spray, two spray arms, connecting pipe; The female pipe of described spray stretches into the inside of release case from the release box top; Described two spray arms are arranged in parallel, and the axial middle position of these two spray arms is communicated with by connecting pipe;
The female pipe of described spray is positioned at the outer end of release case and connects the water source, and an end that is positioned at release case inside is connected to the axial middle position of described connecting pipe; The axis of the axis of the female pipe of described spray, spray arm and the axis of connecting pipe are vertical in twos.
The axial two ends of every spray arm are respectively arranged with first fog-spray nozzle, and described spray arm is parallel with the first fog-spray nozzle axis on it.
Every spray arm is arranged at intervals with 4～6 the second fog-spray nozzles vertically; The axis of described 4～6 the second fog-spray nozzles is perpendicular to the axis of described spray arm, and the spout of each the second fog-spray nozzle all points to oblique below, and the axis angle of the axis of each the second fog-spray nozzle and the female pipe of described spray is 15～60 °.
Described each first fog-spray nozzle and the second fog-spray nozzle all are communicated with corresponding spray arm.
Beneficial effect of the present invention:
(1) adopt two showers to be arranged in parallel, avoided other adapters of installing above release case inner barrel when having increased spray flux and spray scope, conveniently arrange and install;
(2) increase fog-spray nozzle quantity, suitably reduce single fog-spray nozzle flow, make spray more even;
(3) fog-spray nozzle is mutually the certain angle installation, makes the spray scope larger.
Description of drawings
Fig. 1 is the schematic diagram of a loop of reactor-loop;
Fig. 2 is the connection diagram of reactor voltage stabilizer and release case thereof;
Fig. 3 is the schematic diagram of release case and inner spray equipment thereof;
Fig. 4 is a kind of spray equipment schematic diagram that is applied to the pressurized-water reactor nuclear power plant pressurizer relief tank of the present invention;
Fig. 5 be in Fig. 4 A to schematic diagram;
Fig. 6 be in Fig. 4 B to schematic diagram.
In figure: 1-voltage stabilizer, 101-surge pipe, 2-release case, 3-spray equipment, 301-the first fog-spray nozzle, 302-sprays arm, the female pipe of 303-spray, 304-connecting pipe, 305-the second fog-spray nozzle, 4-relief tube, the 5-loop, 6-pump, 7-pressure vessel, 8-reactor core, 9-steam generator.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
Nuclear power plant reactor comprises a circuit system, and a described circuit system comprises a plurality of loops 5, expresses one of them loop 5 in Fig. 1; Each loop includes heat pipe section 502 and cold leg 501; Cooling medium enters pressure vessel 7 by pump 6 by cold leg 501 and from reactor core 8 draw heats, cooling medium after draw heat leaves pressure vessel 7 by heat pipe section 502 process steam generator 9 release heat, thereby the cooling medium after release heat is got back to cold leg 501 and then again entered pressure vessel 7 realization circulations.Voltage stabilizer 1 bottom is provided with surge pipe 101, and described surge pipe 101 is connected on described heat pipe section 502 by the fluctuation pipe.The top of described voltage stabilizer 1 is connected to by pipeline and is arranged on release case 2 inner bottom parts zones and is immersed on relief tube 4 in water, and described release case 2 inner top region divisions have spray equipment.
As extremely shown in Figure 6 in Fig. 2, a kind of spray equipment that is applied to the pressurized-water reactor nuclear power plant pressurizer relief tank of the present invention, it is regional that it is arranged on sealable tank shape release case 2 inner tops, and it comprises that 303, two of a female pipe of spray sprays arms 302, connecting pipe 304; The female pipe 303 of described spray stretches into the inside of release case 2 from release case 2 tops; Described two spray arms 302 are arranged in parallel, and the axial middle position of these two spray arms 302 is communicated with by connecting pipe 304;
The female pipe 303 of described spray is positioned at the outer ends of release case 2 and connects the water source, and an end that is positioned at release case 2 inside is connected to the axial middle position of described connecting pipe 304; The axis of the axis of the female pipe 303 of described spray, the axis of spray arm 302 and connecting pipe 304 is vertical in twos;
The axial two ends of every spray arm 302 are fixed with respectively 1 the first fog-spray nozzle 301, and described spray arm 302 is parallel with the first fog-spray nozzle 301 axis on it; Every spray arm 302 is arranged at intervals with 4～6 the second fog-spray nozzles 305, preferred 4 the second fog-spray nozzles 305 vertically; The axis of described 4～6 the second fog-spray nozzles 305 is perpendicular to the axis of described spray arm 302, the spout of each the second fog-spray nozzle 305 all points to oblique below, and the axis angle of the axis of each the second fog-spray nozzle 305 and the female pipe 303 of described spray is 15～60 °, preferred 30 °.Described the first fog-spray nozzle 301, the second fog-spray nozzle 305 all are communicated with corresponding spray arm 302, are sprayed onto the inside of described release case 2 by the first fog-spray nozzle 301, the second fog-spray nozzle 305 with the water that will be in spray arm 302.
The spray equipment that is applied to the pressurized-water reactor nuclear power plant pressurizer relief tank of the present invention adopts two showers to be arranged in parallel, and increases fog-spray nozzle quantity, suitably reduces single fog-spray nozzle flow, and fog-spray nozzle is mutually the certain angle installation simultaneously.Purpose is to increase spray scope, raising uniform spraying and steam-water mixing efficient and convenient layout installation.
Claims (4)
1. spray equipment that is applied to the pressurized-water reactor nuclear power plant pressurizer relief tank, it is arranged on sealable tank shape release case inner top zone, it is characterized in that: comprise a female pipe of spray, two spray arms, connecting pipe; The female pipe of described spray stretches into the inside of release case from the release box top; Described two spray arms are arranged in parallel, and the axial middle position of these two spray arms is communicated with by connecting pipe;
The female pipe of described spray is positioned at the outer end of release case and connects the water source, and an end that is positioned at release case inside is connected to the axial middle position of described connecting pipe; The axis of the axis of the female pipe of described spray, spray arm and the axis of connecting pipe are vertical in twos.
2. according to spray equipment claimed in claim 1, it is characterized in that: the axial two ends of every spray arm are respectively arranged with first fog-spray nozzle, and described spray arm is parallel with the first fog-spray nozzle axis on it.
3. according to spray equipment claimed in claim 2, it is characterized in that: every spray arm is arranged at intervals with 4～6 the second fog-spray nozzles vertically; The axis of described 4～6 the second fog-spray nozzles is perpendicular to the axis of described spray arm, and the spout of each the second fog-spray nozzle all points to oblique below, and the axis angle of the axis of each the second fog-spray nozzle and the female pipe of described spray is 15～60 °.
4. according to spray equipment claimed in claim 1, it is characterized in that: described each first fog-spray nozzle and the second fog-spray nozzle all are communicated with corresponding spray arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206903395U CN203026155U (en) | 2012-12-14 | 2012-12-14 | Spraying device applied to pressurizer relief tank of pressurized water reactor nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206903395U CN203026155U (en) | 2012-12-14 | 2012-12-14 | Spraying device applied to pressurizer relief tank of pressurized water reactor nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026155U true CN203026155U (en) | 2013-06-26 |
Family
ID=48650121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206903395U Expired - Lifetime CN203026155U (en) | 2012-12-14 | 2012-12-14 | Spraying device applied to pressurizer relief tank of pressurized water reactor nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440884A (en) * | 2013-08-12 | 2013-12-11 | 中国核动力研究设计院 | Steam pressure stabilizing system placed inside RPV and application method thereof |
| CN103871491A (en) * | 2012-12-14 | 2014-06-18 | 中国核动力研究设计院 | Spraying apparatus applied for pressurized water reactor nuclear power plant pressurizer pressure-relief box |
-
2012
- 2012-12-14 CN CN2012206903395U patent/CN203026155U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871491A (en) * | 2012-12-14 | 2014-06-18 | 中国核动力研究设计院 | Spraying apparatus applied for pressurized water reactor nuclear power plant pressurizer pressure-relief box |
| CN103440884A (en) * | 2013-08-12 | 2013-12-11 | 中国核动力研究设计院 | Steam pressure stabilizing system placed inside RPV and application method thereof |
| CN103440884B (en) * | 2013-08-12 | 2016-05-11 | 中国核动力研究设计院 | Be placed in the application process of the steam pressure stabilizer of reactor pressure vessel inside |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
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| CX01 | Expiry of patent term |