CN106895387B - A kind of steam dryer - Google Patents
A kind of steam dryer Download PDFInfo
- Publication number
- CN106895387B CN106895387B CN201510963813.5A CN201510963813A CN106895387B CN 106895387 B CN106895387 B CN 106895387B CN 201510963813 A CN201510963813 A CN 201510963813A CN 106895387 B CN106895387 B CN 106895387B
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- China
- Prior art keywords
- guide vane
- plate
- substrate
- cylinder
- steam dryer
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- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
- F22B37/30—Steam-separating arrangements using impingement against baffle separators
- F22B37/306—Steam-separating arrangements using impingement against baffle separators specially adapted for steam generators of nuclear power plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
- F22B37/32—Steam-separating arrangements using centrifugal force
- F22B37/327—Steam-separating arrangements using centrifugal force specially adapted for steam generators of nuclear power plants
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention belongs to steam-water separation technical fields, and in particular to a kind of steam dryer.The guide vane bottom is connected with guide vane support board upper surface, it is connected at the top of guide vane with base lower surface, substrate center's aperture, the lower cylinder lower part is connected with upper surface of base plate, lower cylinder top is connected with ring flat-plate lower surface, the upper surface of the ring flat-plate is connected with the bottom of dry blade, the dry blade is enclosed in interior by upper cylinder, the upper cylinder top is welded on top plate, the top of the dry blade is connected with top plate, the roof center aperture is as venthole, and some apertures are provided with as by-pass prot, the drain pipe is connected with substrate, the side plate and substrate and top plate form collecting box.Critical speed of the present invention is high, structure is more compact and processing and manufacturing is easy.
Description
Technical field
The invention belongs to steam-water separation technical fields, and in particular to a kind of steam dryer.
Background technique
Key equipment one of of the steam generator as presurized water reactor nuclear power unit, effect is will be caused by reactor
Heat is passed to secondary coolant circuit system, and generates the steam for meeting performance indicator, is done work with pushing turbine.Carbonated drink in steam generator
It is mixed that separator (including steam-water separator, Gravity Separation space and drier) can remove the carbonated drink from U-shaped heating surface bank
The large quantity of moisture in object is closed, is the important component of natural circulation steam generator, work in every performance indicator is directly related to
The operational safety of steam generator and the work safety of steam turbine and working efficiency, or even the safety of entire nuclear power unit operation
Reliability, and the size of natural circulation steam generator depends greatly on the structure and work of water separator
Performance.Therefore guarantee water separator it is functional under conditions of, the compression height of water separator, body as far as possible
Product is the effective measures of the safety for guaranteeing nuclear power unit operation, reliability and miniaturization.
Currently, water separator carries out the crude separation of vapour-water mainly using rotation blade-type separator as the first order,
Using corrugated sheet drier as the second level, carry out the subdivision of vapour-water from.In corrugated sheet drier, water droplet is hit by inertia
It hits wooden partition and is accumulated into moisture film, then flow downward out under the force of gravity, when drier inlet steam speed is more than critical speed
When, corrugated sheet inside occurs water droplet and carries again, causes outlet humidity to steeply rise, substantial deviation requirement.In order to avoid
Reach critical speed, generalling use higher corrugated sheet (more than 1m) increases inlet area, leads to the size of steam generator
Also it must increase with it, to increase more manufacture processing, installation and transportation cost.
Summary of the invention
The purpose of the present invention is to provide a kind of steam dryer, critical speed is high, structure is more compact and processing system
It is easy to make.
In order to achieve the above objectives, the technical solution used in the present invention are as follows:
A kind of steam dryer, including guide vane support board, guide vane, substrate, lower cylinder, ring flat-plate, dry blade, upper circle
Cylinder, side plate, top plate and drain pipe；The guide vane bottom is connected with guide vane support board upper surface, guide vane top and substrate following table
Face is connected, and substrate center's aperture, the lower cylinder lower part is connected with upper surface of base plate, lower cylinder top and ring flat-plate lower surface
Be connected, the upper surface of the ring flat-plate is connected with the bottom of dry blade, the dry blade be enclosed in by upper cylinder it is interior, it is described on
Cylinder top is welded on top plate, and the top of the dry blade is connected with top plate, the roof center aperture as venthole,
And some apertures are provided with as by-pass prot, the drain pipe is connected with substrate, and the side plate and substrate and top plate form collecting box.
The guide vane axisymmetricly arranges, and the outside of guide vane and the outer of guide vane support board are tangent, the inside of guide vane with
Same circle is tangent, and quantity n is advisable with 6~12, and guide vane is square plate, and height value is identical with the radius value of inscribed circle；It leads
Leaf two sides chamfering, angle take 360 °/n.
The height of the lower cylinder is the half of inner diameter values, the inscribe of the internal diameter of lower cylinder and the internal diameter of ring flat-plate and guide vane
Diameter of a circle is identical.
The height of the dry blade is identical with the internal diameter of lower cylinder；Dry leaf cross-section is circular arc, the radius of circular arc
It is identical as the central diameter of ring flat-plate, meet the side chamfering of stream.
The height of the drier is 2 times of lower barrel bore, is 4 times of lower cylinder heights, is 430mm.
The drain pipe is mounted on any one angle of substrate, internal diameter 40mm, and length need to make its underpart be more than that guide vane branch is held round
Plate at least 20mm.
The dry blade axisymmetricly arranges, and interlocks two-by-two, and formation width is the gap of 3~10mm, is overlapped length and exists
Within 20mm, it is overlapped twice that length is preferably slit width.
The two sides of the dry blade are bevel edge, and angle with horizontal plane is 45 °~90 °.
The cross sectional shape of the collecting box be it is square, trapezoidal, fan-shaped and round, trapezoidal and fan-shaped cross section is suitable for
Circumferential arrangement arrangement.
The venthole installs drip ring additional, flushes at the top of drip ring with top plate or beyond top plate a part.
It is obtained by the present invention to have the beneficial effect that
The present invention has the advantages that critical speed is high, compact-sized and processing and manufacturing is easy.Make steam generation by guide vane
Rotation, water droplet are thrown toward wall surface under the influence of centrifugal force, enter dry blade and upper cylinder by the interlobate gap of drying
Between annulus further rotate.In corrugated sheet drier, water droplet is by inertial impaction wooden partition and is accumulated into moisture film, so
It flows downward out, since steam and moisture film directly contact, if vapor (steam) velocity is larger, moisture film can be peeled off under the force of gravity afterwards, from
And bring water in steam again into, cause humidity to increase.It is interlobate from drying in time to the water droplet of wall surface the invention enables getting rid of
Gap is left, and the peeling and water droplet for avoiding moisture film are again introduced into steam, therefore present invention critical speed with higher；Due to
Steam is based on circular motion, and rotation speed is high, and centrifugal force is larger so that water droplet comparatively fast reaches wall surface, required axial height compared with
Low therefore of the invention structure is more compact；The present invention ties mainly by cylinder, plate, arc plate, round tube and Kong Zucheng
Structure is relatively simple and components are less, therefore easy to manufacture.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic diagram of Section A-A in Fig. 1, shows guide vane arranged mode；
Fig. 3 is guide vane cross section；
Schematic diagram of the Fig. 4 for section B-B in Fig. 1, the arranged mode of the dry blade of display, the steam flow type of flow, with
And the arrangement of venthole and by-pass prot；
Fig. 5 is the three-dimensional modeling of dry blade；
Fig. 6 is dry leaf cross-section；
The schematic diagram that Fig. 7 is collecting box cross section when being trapezoidal；
The schematic diagram that Fig. 8 is collecting box cross section when being sector；
The schematic diagram that Fig. 9 is collecting box cross section when being circle；
Figure 10 is schematic diagram when venthole installs baffle ring additional；
In figure: 1, guide vane support board；2, guide vane；3, substrate；4, lower cylinder；5, ring flat-plate；6, dry blade；7, upper circle
Cylinder；8, side plate；9, top plate；10, drain pipe.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of Novel steam drier, including guide vane support board 1, guide vane 2, substrate 3, lower cylinder 4, ring
Plate 5, dry blade 6, upper cylinder 7, side plate 8, top plate 9 and drain pipe 10,2 bottom of guide vane and 1 upper surface phase of support board
Even, 2 top of guide vane is connected with 3 lower surface of substrate, 3 center opening of substrate, lower 4 lower part of cylinder and 3 upper surface of substrate
It is connected, lower 4 top of cylinder is connected with 5 lower surface of ring flat-plate, and the upper surface of the ring flat-plate 5 is connected with the bottom of dry blade 6, described
In dry blade 6 is enclosed in by upper cylinder 7, upper 7 top of cylinder is welded on top plate 9, the top of the dry blade 6 with
Top plate 9 is connected, and 9 center opening of top plate is provided with some apertures as by-pass prot as venthole, the drain pipe 10 and
Substrate 3 is connected, and the side plate 8 forms collecting box with substrate 3 and top plate 9.Steam flow generates rotation through guide vane 2, is upward through substrate 3
The hole at center, so that moisture is further got rid of to wall surface, then passes through ring flat-plate 5 and enters what dry blade 6 surrounded into lower cylinder 4
Cylindrical space, moisture enters upper cylinder 7 from the gap between dry blade 6 with a small amount of steam, then passes through upper cylinder 7 and ring
Gap between plate 5 enters collecting box, and then moisture is flowed out from drain pipe 10, and steam is still stayed from the by-pass prot outflow on top plate 9
It is flowed out in the steam of cylindrical space from 9 center venthole of top plate.
As shown in Figure 1, the height of lower cylinder 4 is the half of inner diameter values, the internal diameter of lower cylinder 4 and the internal diameter of ring flat-plate 5 and
The inscribe diameter of a circle of guide vane 2 is identical, and the height of dry blade 6 is about identical with the internal diameter of lower cylinder 4, and the height of whole device is about
It is 2 times of lower 4 internal diameter of cylinder, i.e., 4 times of about lower 4 height of cylinder, about 430mm.
As shown in Figure 1, drain pipe 10 is mounted on any one angle of substrate 3, internal diameter 40mm, length need to make its underpart be more than to lead
At least 20mm of leaf support board 1.
As shown in Fig. 2, the guide vane 2 axisymmetricly arranges, the outside of guide vane 2 and the outer of guide vane support board 1 are tangent,
Circle of dotted line is tangent in the inside of guide vane 2 and Fig. 4, and quantity n is advisable with 6~12.Guide vane approximating square plate, height value and figure
The radius value of circle of dotted line is same or similar in 4.
As shown in figure 3,2 two sides chamfering of guide vane, angle take 360 °/n, to reduce guide vane inlet and outlet resistance.
As shown in figure 4, dry blade 6 is circular arc, two neighboring dry blade 6 is in interlaced arrangement, formation width is 3~
The gap of 10mm, is advisable with 5mm.Length is overlapped within 20mm, is advisable with 10mm, i.e., coincidence length is preferably twice of slit width.
As shown in figure 5, the two sides of dry blade 6 are bevel edge, about 45 °~90 ° of angle with horizontal plane, 60 ° are preferably taken.
As shown in fig. 6, dry 6 cross section of blade is circular arc, the radius of circular arc is same or similar with the central diameter of ring flat-plate 4, meets
The side chamfering of stream, to play guide functions.
The cross sectional shape of collecting box can be square as shown in Figure 4,300~500mm of side length, be also possible to as Fig. 7,
Fig. 8 and shown in Fig. 9 trapezoidal, fan-shaped and round, trapezoidal and fan-shaped cross section are arranged suitable for circumferential arrangement.
As shown in Figure 10, venthole can also install drip ring additional, can flush with top plate 9 at the top of drip ring, at this time highly about
30mm can also can reduce the probability of moisture film outflow beyond 9 a part of top plate, drip ring.
By-pass prot internal diameter as shown in Figure 4 is 8~12mm, preferably takes 10mm, quantity takes between 4-8.
Claims (10)
1. a kind of steam dryer, it is characterised in that: including guide vane support board (1), guide vane (2), substrate (3), lower cylinder
(4), ring flat-plate (5), dry blade (6), upper cylinder (7), side plate (8), top plate (9) and drain pipe (10)；Guide vane (2) bottom
It is connected with guide vane support board (1) upper surface, is connected at the top of guide vane (2) with substrate (3) lower surface, substrate (3) center is opened
Hole, lower cylinder (4) lower part are connected with substrate (3) upper surface, and lower cylinder (4) top is connected with ring flat-plate (5) lower surface, described
The upper surface of ring flat-plate (5) is connected with the bottom of dry blade (6), and the dry blade (6) is enclosed in interior, institute by upper cylinder (7)
It states cylinder (7) top to be welded on top plate (9), the top of the dry blade (6) is connected with top plate (9), the top plate (9)
Center opening is provided with some apertures as by-pass prot as venthole, and the drain pipe (10) is connected with substrate (3), described
Side plate (8) and substrate (3) and top plate (9) form collecting box.
2. a kind of steam dryer as described in claim 1, it is characterised in that: the guide vane (2) axisymmetricly arranges, guide vane
(2) outer in outside and guide vane support board (1) is tangent, and the inside of guide vane (2) and same circle are tangent, and quantity n is 6~12
Piece, guide vane (2) are square plate, and height value is identical with the radius value of inscribed circle；Guide vane (2) two sides chamfering, angle take 360 °/
n。
3. a kind of steam dryer as described in claim 1, it is characterised in that: the height of the lower cylinder (4) is inner diameter values
Half, the internal diameter of lower cylinder (4) is identical as the inscribe diameter of a circle of the internal diameter of ring flat-plate (5) and guide vane (2).
4. a kind of steam dryer as described in claim 1, it is characterised in that: the height of the dry blade (6) and lower circle
The internal diameter of cylinder (4) is identical；Dry blade (6) cross section is circular arc, and the radius of circular arc is identical as the central diameter of ring flat-plate (4), meets stream
Side chamfering.
5. a kind of steam dryer as described in claim 1, it is characterised in that: the height of the drier is lower cylinder (4)
2 times of internal diameter are 4 times of lower cylinder (4) height, are 430mm.
6. a kind of steam dryer as described in claim 1, it is characterised in that: the drain pipe (10) is mounted on substrate (3)
Any one angle, internal diameter 40mm, length need to make its underpart be more than guide vane support board (1) at least 20mm.
7. a kind of steam dryer as described in claim 1, it is characterised in that: the dry blade (6) axisymmetricly arranges,
Interlock two-by-two, formation width is the gap of 3~10mm, is overlapped length within 20mm, is overlapped twice that length is slit width.
8. a kind of steam dryer as described in claim 1, it is characterised in that: the two sides of the dry blade (6) are bevel edge,
Angle with horizontal plane is 45 °~90 °.
9. a kind of steam dryer as described in claim 1, it is characterised in that: the cross sectional shape of the collecting box is square
Shape, trapezoidal, fan-shaped and round, trapezoidal and fan-shaped cross section is arranged suitable for circumferential arrangement.
10. a kind of steam dryer as described in claim 1, it is characterised in that: the venthole installs drip ring, drip ring additional
Top flushes with top plate (9) or beyond top plate (9) a part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963813.5A CN106895387B (en) | 2015-12-18 | 2015-12-18 | A kind of steam dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963813.5A CN106895387B (en) | 2015-12-18 | 2015-12-18 | A kind of steam dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106895387A CN106895387A (en) | 2017-06-27 |
| CN106895387B true CN106895387B (en) | 2019-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510963813.5A Active CN106895387B (en) | 2015-12-18 | 2015-12-18 | A kind of steam dryer |
Country Status (1)
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| CN (1) | CN106895387B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2480905A1 (en) * | 1980-04-18 | 1981-10-23 | Framatome Sa | DEVICE FOR SEPARATING WATER AND STEAM FROM THE VAPORIZATION SPEAKER OUTPUT OF A STEAM GENERATOR |
| US7637699B2 (en) * | 2007-07-05 | 2009-12-29 | Babcock & Wilcox Power Generation Group, Inc. | Steam/water conical cyclone separator |
| CN101648093B (en) * | 2008-08-15 | 2011-09-14 | 中冶赛迪工程技术股份有限公司 | Coaxial separator |
| CN205372513U (en) * | 2015-12-18 | 2016-07-06 | 核动力运行研究所 | Steam drier |
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2015
- 2015-12-18 CN CN201510963813.5A patent/CN106895387B/en active Active
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| CN106895387A (en) | 2017-06-27 |
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