CN203017883U - Diverter applied to steam separator in nuclear power station steam generator - Google Patents
Diverter applied to steam separator in nuclear power station steam generator Download PDFInfo
- Publication number
- CN203017883U CN203017883U CN 201220690625 CN201220690625U CN203017883U CN 203017883 U CN203017883 U CN 203017883U CN 201220690625 CN201220690625 CN 201220690625 CN 201220690625 U CN201220690625 U CN 201220690625U CN 203017883 U CN203017883 U CN 203017883U
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- steam
- cylinder
- current divider
- plate
- water separator
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Abstract
The utility model relates to a diverter applied to a steam separator in a nuclear power station steam generator. The diverter is arranged on an upper deck of the steam separator and composed of a lower assembly, a middle assembly and an upper assembly which are connected in turn, wherein the lower assembly comprises a steam outlet tube, a connection ring muff-coupled at the outer side of the steam outlet tube, and a middle support piece respectively connected with an inner surface of a diversion apron and an outer surface at the upper end of the steam outlet tube; a lower surface of the connection ring and the upper deck of the steam separator and fixed; the middle assembly comprises a diversion tube, an upper ring plate muff-coupled at the outer side of the upper end of the diversion tube, a conical diversion apron fixed at the outer side of the upper ring plate; and the upper assembly comprises a diffusion plate, a plurality of transparent homogeneous steam holes formed in the diffusion plate, vertical diversion plates arranged on the edge of each homogeneous steam hole and fixed on the lower surface of the diffusion plate, and upper support pieces respectively connected with the lower surface of the diffusion plate and the upper end of the middle assembly. The steam humidity is effectively reduced, the over high local velocity is avoided, and the qualified dry saturated steam 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 present nuclear power station steam generator be arranged in steam generator drier and Gravity Separation space below, its effect is that steam water interface is carried out crude separation, reduce drier entrance humidity, guarantee that drier improves the qualified dry saturated steam of quality to steam turbine, guarantees safety, the economical operation of steam turbine.
At present, be widely used steam-water separator in nuclear power station steam generator, mainly comprise current divider, decline cartridge module, rising cartridge module and blade assembly.Steam water interface enters steam-water separator, through after the Spin-up effect of helical blade, water droplet is thrown to the inwall of cylinder, and flows to tangential drain port and rise cylinder and the decline passway that descends between the cylinder cylinder in the outlet of the cylinder that rises, at last from hydrophobic pocket and the outflow of hydrophobic restrictor ring.Steam water interface after initial gross separation directly upwards enters the Gravity Separation space, this moment, the steam water interface flow velocity was still higher, the 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 a kind of being 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 qualified dry saturated steam of quality.
In order to solve the problems of the technologies described above, technical scheme of the present invention is, a kind of current divider that is applied to 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 the vapour cylinder, be socketed in the described connecting ring that goes out the vapour cylinder outside, with being connected the middle part support member that vapour cylinder upper end outer surface all is connected with described water conservancy diversion skirt inner surface; Described connecting ring lower surface and described steam-water separator upper deck are fixed;
Described middle parts comprises shunt cylinder, be socketed in the outside, described shunt cylinder upper end upper ring plate, be fixed on the cone tubbiness water conservancy diversion skirt in the described upper ring plate outside;
Described top assembly comprise diffuser plate, several penetrating equal steam vents of offering on described diffuser plate, the edge that is fixed on each equal steam vent of lower surface of described diffuser plate get vertical deflector and with the lower surface of described diffuser plate be connected the upper support element that middle parts upper end all is connected.
The plane, place, lower surface of described shunt cylinder is positioned at the described top that goes out the plane, place, upper surface of vapour cylinder.
Described shunt cylinder, upper ring plate, water conservancy diversion skirt are integral structures.
Described shunt cylinder is positioned at the described vapour cylinder that goes out, and described guide shell is positioned at the described vapour cylinder outside of going out.
Described several equal steam vents comprise the semicircle orifice of 2 symmetries that are arranged on 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 the steam-water separator outlet steam jet velocity that makes progress, thereby reduce steam moisture;
(2) steam-water separator outlet steam flow rate is distributed more even, avoid local velocity too high;
(3) rotation function of the steam water interface of the current divider of flowing through is reduced, prevent that adjacent steam-water separator from circumferentially flowing out liquidating of carbonated drink, guarantee to obtain the qualified dry saturated steam of quality.
Description of 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 a kind of schematic diagram that is applied to an embodiment of current divider of 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 a kind of schematic diagram that is applied to another embodiment of current divider of steam-water separator in nuclear power station steam generator of the present invention.
In figure: the 1-steam-water separator; The 2-drier; The 3-steam (vapor) outlet; The 4-steam generator; 101-has current divider now; 102-decline cartridge module; 103-rising cartridge module; The 104-blade assembly; The 105-upper deck; 5-water conservancy diversion skirt; The 6-guide plate; The 7-upper ring plate; The 8-shunt cylinder; The 9-gripper shoe; The 10-deflector; The 11-diffuser plate; The 12-back-up block; The 13-connecting ring; 14-goes out the vapour cylinder; The 15-shunting cap; The 16-locating piece; The equal steam vent of 17-.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
As depicted in figs. 1 and 2, in prior art, be widely used steam-water separator 1 in nuclear power station steam generator 4, 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 process 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 between cylinder and decline cylinder, flow out from hydrophobic pocket and hydrophobic restrictor ring at last.Steam water interface after initial gross separation leaves steam-water separator 1 and enters drier 2 in steam generator 4 and carry out drying and process, and then the steam (vapor) outlet 3 from steam generator 4 leaves steam generator 4.
Embodiment one
As extremely shown in Figure 4 in Fig. 3, 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.
Describedly go out vapour cylinder 14 and be tubular structure, connecting ring 13 is enclosed within out vapour cylinder 14 near the outside of its lower ends and goes out vapour cylinder 14 with this and is welded and fixed; 6 back-up blocks 12 are as lower support, its along go out vapour bobbin 14 circumferentially evenly the interval arrange, and simultaneously with described connecting ring 13 with go out 14 welding of vapour cylinder;
At the lower surface of described diffuser plate 11, and the edge that is positioned at described 12 trapezoidal holes respectively is welded with a vertical deflector 10; A side of 6 deflectors 10 respectively is 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 side is welded with the described outer surface that goes out vapour cylinder 14 upper ends, guide plate 6 is as the middle part support member; Described gripper shoe 9 is welded on upper ring plate 7; The plane, place, lower surface of described shunt cylinder 8 is positioned at the described top that goes out the plane, place, upper surface 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 two
As shown in Figure 5, be the structure replacement 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 with the difference of embodiment one.
Be specially, described shunting cap 15 comprises a straight drum part and a cone cylinder part, and described cone cylinder partly is enclosed within the described straight drum part outside and is connected with this straight drum part integral type; Described straight drum part is positioned at the described vapour cylinder 14 that goes out, described cone barrel section is positioned at and describedly goes out outside vapour cylinder 14, be provided with 6 circumferential evenly spaced locating pieces 16 in edge between the inner surface of the described outer surface that goes out vapour cylinder 14 and described cone barrel section, each locating piece 16 goes out the outer surface of vapour cylinder 14 and the inner surface of described cone barrel section all is welded and fixed with described; Be about to described water conservancy diversion skirt 5, upper ring plate 7, shunt cylinder 8 integral type designs in embodiment one, 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 is positioned at the described vapour cylinder 14 that goes out, therefore accordingly the shape size of the guide plate 6 in embodiment one is adjusted formation 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 the steam-water separator 1 outlet steam jet velocity that makes progress, thereby reduce drier 2 inlet steam humidity; Steam-water separator 1 outlet steam flow rate is distributed more even, avoid local velocity too high; The rotation function of the steam water interface of the current divider of flowing through is reduced, prevent that adjacent steam-water separator 1 from circumferentially flowing out liquidating of carbonated drink.Guarantee to obtain the qualified dry saturated steam of quality.
Claims (5)
1. current divider that is applied to 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 the vapour cylinder, be socketed in the described connecting ring that goes out the vapour cylinder outside, with being connected the middle part support member that vapour cylinder upper end outer surface all is connected with described water conservancy diversion skirt inner surface; Described connecting ring lower surface and described steam-water separator upper deck are fixed;
Described middle parts comprises shunt cylinder, be socketed in the outside, described shunt cylinder upper end upper ring plate, be fixed on the cone tubbiness water conservancy diversion skirt in the described upper ring plate outside;
Described top assembly comprise diffuser plate, several penetrating equal steam vents of offering on described diffuser plate, the edge that is fixed on each equal steam vent of lower surface of described diffuser plate get vertical deflector and with the lower surface of described diffuser plate be connected the upper support element that middle parts upper end all is connected.
2. according to current divider claimed in claim 1, it is characterized in that: the plane, place, lower surface of described shunt cylinder is positioned at the described top that goes out the plane, place, upper surface of vapour cylinder.
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 shunt cylinder is positioned at the described vapour cylinder that goes out, and described guide shell is positioned at the described vapour cylinder outside of going out.
5. according to current divider claimed in claim 1, it is characterized in that: described several equal steam vents comprise the semicircle orifice of 2 symmetries that are arranged on 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 |
|---|---|---|---|
| CN 201220690625 CN203017883U (en) | 2012-12-14 | 2012-12-14 | Diverter applied to steam separator in nuclear power station steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690625 CN203017883U (en) | 2012-12-14 | 2012-12-14 | Diverter applied to steam separator in nuclear power station steam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203017883U true CN203017883U (en) | 2013-06-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220690625 Expired - Lifetime CN203017883U (en) | 2012-12-14 | 2012-12-14 | Diverter applied to steam separator in nuclear power station steam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203017883U (en) |
-
2012
- 2012-12-14 CN CN 201220690625 patent/CN203017883U/en not_active Expired - Lifetime
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Legal Events
| 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 |