CN103861389A - Steam-water separator splitter applied in nuclear power plant steam generator - Google Patents
Steam-water separator splitter applied in nuclear power plant steam generator Download PDFInfo
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- CN103861389A CN103861389A CN201210540945.3A CN201210540945A CN103861389A CN 103861389 A CN103861389 A CN 103861389A CN 201210540945 A CN201210540945 A CN 201210540945A CN 103861389 A CN103861389 A CN 103861389A
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Abstract
The present invention relates to a steam-water separator splitter applied in a nuclear power plant steam generator. The steam-water separator splitter is arranged on the upper deck of a steam-water separator, and comprises a lower portion assembly, a middle portion assembly and an upper portion assembly, wherein the lower portion assembly, the middle portion assembly and the upper portion assembly are sequentially connected, the lower portion assembly comprises a steam outlet cylinder, a connection ring connected on the outer side of the steam outlet cylinder in a sleeve manner, and a middle portion supporting part connected with the inner surface of the diversion skirt and the outer surface on the upper end of the steam outlet cylinder, the lower surface of the connection ring and the upper deck of the steam-water separator are fixed, the middle portion assembly comprises a splitting cylinder, an upper ring plate connected on the outer side on the upper end of the splitting cylinder, and a cone barrel-like diversion skirt fixed on the outer side of the upper ring plate, and the upper portion assembly comprises a diffusion plate, a plurality of penetrating homogeneous steam holes arranged on the diffusion plate, vertical diversion plates fixed on the lower surface of the diffusion plate and on the edge positions of each homogeneous steam holes, and an upper portion supporting part connected with the lower surface of the diffusion plate and the upper end of the middle portion assembly. With the steam-water separator splitter, the steam humidity can be effectively reduced; the too high local flow rate can be avoided; and it is ensured that the dry saturated steam with qualified quality is obtained.
Description
Technical field
The present invention relates to field of pressurized water reactor nuclear, be specifically related to a kind of current divider that is applied to steam-water separator in nuclear power station steam generator.
Background technology
Steam-water separator in current nuclear power station steam generator is arranged in below steam generator drier and Gravity Separation space, its effect is that steam water interface is carried out to crude separation, reduce drier entrance humidity, ensure that drier improves the qualified dry saturated steam of quality to steam turbine, ensures safety, the economical operation of steam turbine.
At present, in nuclear power station steam generator, be widely used steam-water separator, mainly comprise current divider, decline cartridge module, rising cartridge module and blade assembly.Steam water interface enters steam-water separator, after the Spin-up effect of helical blade, water droplet is thrown to the inwall of cylinder, and the decline passway that flows to tangential drain port and rise cylinder and decline between cylinder cylinder in the outlet of the cylinder that rises, and finally flows out from hydrophobic pocket and hydrophobic restrictor ring.Steam water interface after initial gross separation directly upwards enters Gravity Separation space, now steam water interface flow velocity is still higher, Gravity Separation spatial altitude is limited, cause steam to have little time diffusion and just carry water droplet inflow drier, drier inlet steam humidity is increased, the segmentation that is unfavorable for drier from.In addition, the steam water interface after initial gross separation enters drier, also has the phenomenon of flow velocity inequality, is unfavorable for the further separation of drier.
Summary of the invention
The technical problem that will solve of the present invention is to provide one and is applied in pressurized water reactor nuclear power station steam generator, can reduce steam generator steam-water separator exit velocity, steam flow rate is evenly distributed, avoid local velocity too high, thereby guarantee the separative efficiency of drier, obtain the current divider of the dry saturated steam that quality is qualified.
In order to solve the problems of the technologies described above, technical scheme of the present invention is, be applied to a current divider for steam-water separator in nuclear power station steam generator, it is arranged on the upper deck of steam-water separator, comprises the lower component, middle parts and the top assembly that connect successively;
Described lower component comprises vapour cylinder, go out the connecting ring in vapour cylinder outside described in being socketed in, with described water conservancy diversion skirt inner surface and described in go out the middle part support member that vapour cylinder upper end outer surface is all connected; Described connecting ring lower surface and described steam-water separator upper deck are fixed;
Described middle parts comprises shunt cylinder, be socketed in outside, described shunt cylinder upper end upper ring plate, be fixed on the cone tubbiness water conservancy diversion skirt in described upper ring plate outside;
The upper support element that several penetrating equal steam vents that described top assembly comprises diffuser plate, offer on described diffuser plate, the edge that is fixed on the each equal steam vent of lower surface of described diffuser plate obtain vertical deflector and be all connected with lower surface and the described middle parts upper end of described diffuser plate.
Described in being positioned at, place, the lower surface plane of described shunt cylinder goes out the top of place, the upper surface plane of vapour cylinder.
Described shunt cylinder, upper ring plate, water conservancy diversion skirt are integral structures.
Described in described shunt cylinder is positioned at, go out vapour cylinder, described in described guide shell is positioned at, go out vapour cylinder outside.
Described several equal steam vents comprise be arranged on 2 symmetrical semicircle orifices of plectane central authorities and around described Circular plate structure center along circumferential even spaced apart 12 trapezoidal holes.
Beneficial effect of the present invention:
(1) can effectively reduce upwards jet velocity of steam-water separator outlet steam, thereby reduce steam moisture;
(2) steam-water separator outlet steam flow rate is distributed more even, avoid local velocity too high;
(3) make the to flow through rotation function of steam water interface of current divider reduces, and prevents that adjacent steam-water separator from circumferentially flowing out liquidating of carbonated drink, guarantees to obtain the dry saturated steam that quality is qualified.
Brief description of the drawings
Fig. 1 is steam generator partial schematic diagram in prior art
Fig. 2 is prior art steam-water separator schematic diagram;
Fig. 3 is the schematic diagram of an a kind of embodiment of current divider who is applied to steam-water separator in nuclear power station steam generator of the present invention;
Fig. 4 be in Fig. 3 A to schematic diagram;
Fig. 5 is the schematic diagram of a kind of another embodiment of current divider that is applied to steam-water separator in nuclear power station steam generator of the present invention.
In figure: 1-steam-water separator; 2-drier; 3-steam (vapor) outlet; 4-steam generator; The existing current divider of 101-; 102-decline cartridge module; 103-rising cartridge module; 104-blade assembly; 105-upper deck; 5-water conservancy diversion skirt; 6-guide plate; 7-upper ring plate; 8-shunt cylinder; 9-gripper shoe; 10-deflector; 11-diffuser plate; 12-back-up block; 13-connecting ring; 14-goes out vapour cylinder; 15-shunting cap; 16-locating piece; The equal steam vent of 17-.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further.
As depicted in figs. 1 and 2, in prior art, in nuclear power station steam generator 4, be widely used steam-water separator 1, mainly comprise existing current divider 101, decline cartridge module 102, rising cartridge module 103 and blade assembly 104.Described current divider 101 is welded on the upper deck of steam-water separator 4 105; Steam water interface enters steam-water separator 1, after the Spin-up effect of the helical blade of blade assembly 4, water droplet is thrown to the cylinder inwall of steam-water separator 1, and flow through tangential drain port in the outlet of the cylinder that rises, enter the decline passway that rises cylinder and decline between cylinder, finally flow out from hydrophobic pocket and hydrophobic restrictor ring.Steam water interface after initial gross separation leaves the drier 2 that steam-water separator 1 enters in steam generator 4 and is dried processing, then leaves steam generator 4 from the steam (vapor) outlet 3 of steam generator 4.
Embodiment mono-
As shown in Figure 3 to Figure 4, a kind of current divider that is applied to steam-water separator in nuclear power station steam generator of the present invention, comprises water conservancy diversion skirt 5, guide plate 6, upper ring plate 7, shunt cylinder 8, gripper shoe 9, deflector 10, diffuser plate 11, back-up block 12, connecting ring 13, goes out vapour cylinder 14, equal steam vents 17; Described shunt cylinder 8, diffuser plate 11, go out vapour cylinder 14 from top to bottom coaxial line arrange.
Described go out vapour cylinder 14 be tubular structure, connecting ring 13 is enclosed within out vapour cylinder 14 and goes out vapour cylinder 14 near the outside of its lower end and with this and be welded and fixed; 6 back-up blocks 12 are as lower support, its along go out vapour bobbin 14 circumferentially evenly interval arrange, and simultaneously with described connecting ring 13 with go out vapour cylinder 14 and weld;
At the lower surface of described diffuser plate 11, and the edge that is positioned at described 12 trapezoidal holes is respectively welded with a vertical deflector 10; A side of 6 deflectors 10 is respectively welded with a gripper shoe 9 therein, and described gripper shoe 9 is as upper support element;
The upper end outer surface of the shunt cylinder 8 of a tubular is welded with the upper ring plate 7 of ring-type, and the outside of described upper ring plate 7 is welded with cone barrel water conservancy diversion skirt 5; Described water conservancy diversion skirt 5 inner surfaces along circumferentially evenly intervals be welded with 6 guide plates 6, each guide plate 6 one sides with described in go out vapour cylinder 14 upper ends outer surface welding, guide plate 6 is as middle part support member; Described gripper shoe 9 is welded on upper ring plate 7; Described in being positioned at, place, the lower surface plane of described shunt cylinder 8 goes out the top of place, the upper surface plane of vapour cylinder 14.
The little surface of connecting ring 13 and the welding of steam-water separator upper deck, finally realize the fixing of current divider of the present invention and steam-water separator miscellaneous part.
Embodiment bis-
As shown in Figure 5, be with the difference of embodiment mono-, the structure that the structure that described water conservancy diversion skirt 5, upper ring plate 7, shunt cylinder 8, guide plate 6 form is formed by shunting cap 15 and locating piece 16 replaces.
Be specially, described shunting cap 15 comprises a straight drum part and a cone cylinder part, and described cone cylinder part is enclosed within described straight drum part outside and is connected with this straight drum part integral type; Described in being positioned at, described straight drum part goes out vapour cylinder 14, described in being positioned at, described cone barrel section goes out outside vapour cylinder 14, describedly go out to be provided with 6 circumferential evenly spaced locating pieces 16 in edge between the outer surface of vapour cylinder 14 and the inner surface of described cone barrel section, each locating piece 16 with described in go out the outer surface of vapour cylinder 14 and the inner surface of described cone barrel section is all welded and fixed; By the described water conservancy diversion skirt 5 in embodiment mono-, upper ring plate 7, shunt cylinder 8 integral type designs, form shunting cap 15, described shunt cylinder 8 is described straight drum part, and described water conservancy diversion skirt 5 is described cone cylinder part, and described upper ring plate 7 is the transition coupling part of described straight drum part and cone cylinder part.Because described straight drum part goes out vapour cylinder 14 described in being positioned at, therefore accordingly the shape size of the guide plate in embodiment mono-6 is adjusted, form locating piece 16.
The current divider that is applied to steam-water separator in nuclear power station steam generator of the present invention, can effectively reduce steam-water separator 1 and export upwards jet velocity of steam, thereby reduces drier 2 inlet steam humidity; Make steam-water separator 1 export steam flow rate distribution more even, avoid local velocity too high; The rotation function of steam water interface of current divider of making to flow through reduces, and prevents that adjacent steam-water separator 1 from circumferentially flowing out liquidating of carbonated drink.Guarantee to obtain the dry saturated steam that quality is qualified.
Claims (5)
1. be applied to a current divider for steam-water separator in nuclear power station steam generator, it is arranged on the upper deck of steam-water separator, it is characterized in that: comprise the lower component, middle parts and the top assembly that connect successively;
Described lower component comprises vapour cylinder, go out the connecting ring in vapour cylinder outside described in being socketed in, with described water conservancy diversion skirt inner surface and described in go out the middle part support member that vapour cylinder upper end outer surface is all connected; Described connecting ring lower surface and described steam-water separator upper deck are fixed;
Described middle parts comprises shunt cylinder, be socketed in outside, described shunt cylinder upper end upper ring plate, be fixed on the cone tubbiness water conservancy diversion skirt in described upper ring plate outside;
The upper support element that several penetrating equal steam vents that described top assembly comprises diffuser plate, offer on described diffuser plate, the edge that is fixed on the each equal steam vent of lower surface of described diffuser plate obtain vertical deflector and be all connected with lower surface and the described middle parts upper end of described diffuser plate.
2. according to current divider claimed in claim 1, it is characterized in that: the top that goes out place, the upper surface plane of vapour cylinder described in place, the lower surface plane of described shunt cylinder is positioned at.
3. according to current divider claimed in claim 1, it is characterized in that: described shunt cylinder, upper ring plate, water conservancy diversion skirt are integral structures.
4. according to current divider claimed in claim 3, it is characterized in that: described in described shunt cylinder is positioned at, go out vapour cylinder, described in described guide shell is positioned at, go out vapour cylinder outside.
5. according to current divider claimed in claim 1, it is characterized in that: described several equal steam vents comprise be arranged on 2 symmetrical semicircle orifices of plectane central authorities and around described Circular plate structure center along circumferential even spaced apart 12 trapezoidal holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540945.3A CN103861389A (en) | 2012-12-14 | 2012-12-14 | Steam-water separator splitter applied in nuclear power plant steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540945.3A CN103861389A (en) | 2012-12-14 | 2012-12-14 | Steam-water separator splitter applied in nuclear power plant steam generator |
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| Publication Number | Publication Date |
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| CN103861389A true CN103861389A (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210540945.3A Pending CN103861389A (en) | 2012-12-14 | 2012-12-14 | Steam-water separator splitter applied in nuclear power plant steam generator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266530A (en) * | 2014-09-17 | 2015-01-07 | 东方电气(广州)重型机器有限公司 | Steam distributor and moisture separator reheater |
| CN106345186A (en) * | 2016-08-26 | 2017-01-25 | 上海核工程研究设计院 | Pressurized water reactor steam generator steam-water separator |
| CN106422536A (en) * | 2016-11-16 | 2017-02-22 | 上海核工程研究设计院 | Steam-water separator for steam generator |
| CN106871098A (en) * | 2017-03-31 | 2017-06-20 | 中国核动力研究设计院 | A kind of Gravity Separation hydrophobic structure for being exclusively used in nuclear power station steam generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001041410A (en) * | 1999-07-26 | 2001-02-13 | Hitachi Ltd | Vapor dryer and nuclear power plant |
| CN1778451A (en) * | 2004-11-24 | 2006-05-31 | 核动力运行研究所 | Vapour and water separator |
| US20120131891A1 (en) * | 2010-11-26 | 2012-05-31 | Mitsubishi Heavy Industries, Ltd. | Moisture separator |
-
2012
- 2012-12-14 CN CN201210540945.3A patent/CN103861389A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001041410A (en) * | 1999-07-26 | 2001-02-13 | Hitachi Ltd | Vapor dryer and nuclear power plant |
| CN1778451A (en) * | 2004-11-24 | 2006-05-31 | 核动力运行研究所 | Vapour and water separator |
| US20120131891A1 (en) * | 2010-11-26 | 2012-05-31 | Mitsubishi Heavy Industries, Ltd. | Moisture separator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266530A (en) * | 2014-09-17 | 2015-01-07 | 东方电气(广州)重型机器有限公司 | Steam distributor and moisture separator reheater |
| CN104266530B (en) * | 2014-09-17 | 2016-11-23 | 东方电气(广州)重型机器有限公司 | A kind of steam distributor and separator |
| CN106345186A (en) * | 2016-08-26 | 2017-01-25 | 上海核工程研究设计院 | Pressurized water reactor steam generator steam-water separator |
| CN106422536A (en) * | 2016-11-16 | 2017-02-22 | 上海核工程研究设计院 | Steam-water separator for steam generator |
| CN106871098A (en) * | 2017-03-31 | 2017-06-20 | 中国核动力研究设计院 | A kind of Gravity Separation hydrophobic structure for being exclusively used in nuclear power station steam generator |
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Application publication date: 20140618 |