CN102434871A - Vent head - Google Patents
Vent head Download PDFInfo
- Publication number
- CN102434871A CN102434871A CN2011102719260A CN201110271926A CN102434871A CN 102434871 A CN102434871 A CN 102434871A CN 2011102719260 A CN2011102719260 A CN 2011102719260A CN 201110271926 A CN201110271926 A CN 201110271926A CN 102434871 A CN102434871 A CN 102434871A
- Authority
- CN
- China
- Prior art keywords
- steam
- cap
- emptying cap
- emptying
- baffle plate
- 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.)
- Granted
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- 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
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Irons (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Apparatus For Making Beverages (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Cookers (AREA)
Abstract
A steam vent head comprises a chamber and has an outlet, a steam inlet conduit with a steam outlet that opens into the chamber and a baffle within the chamber and above the steam outlet, in use the steam outlet discharging steam into the chamber which impinges on the baffle to separate entrained liquid water from the steam, there being drainage passageways between the chamber and the steam inlet conduit so that in use liquid water collected in the chamber is returned to the steam inlet conduit by the drainage passageways. The baffle has an impingement region and a convex portion. One embodiment has a steam inlet conduit with increased thickness.
Description
Technical field
The present invention relates to a kind of emptying cap that is used for vapour system.
Background technology
In the industry and heating process of using steam, the steam that in boiler, produces transfers to various industrial technology occasions with high-temperature high-pressure state through pipeline, thus the energy in the applying steam.
Some vapour system parts like blowdown vessel, has open-ended steam permeability cell, is used for steam is let out to atmosphere.Way is the emptying cap to be installed with assurance steam is disposed in the atmosphere with lower speed safely on the steam permeability cell at present.
The shell of existing emptying cap has baffle plate, and said baffle arrangement is to stop the steam that gets into said shell.Said baffle plate separates the moisture content that carries in the steam from steam.Dry then steam is released into atmosphere through the outlet in the said shell, and isolated water gets into drainpipe, thereby from vapour system, drains.
Though this emptying cap is suitable for some application scenarios, and some shortcomings are also arranged.For example, the whole moisture content that can not separate vapour carries.And the essential pipeline that adopts of emptying cap connects, and installs very consuming time.
Therefore be necessary to provide a kind of improved emptying cap, can improve the separative efficiency of moisture content in the steam, or reduce installation difficulty, perhaps improve this 2 point simultaneously.
Summary of the invention
Describe according to an aspect of the present invention, the present invention provides a kind of emptying cap that is used for vapour system, comprising: define emptying cap chamber and with the cap body with the outlet of emptying cap; Has the steam inlet conduit (steam inlet pipe) that opens into the steam (vapor) outlet in the emptying cap chamber; And baffle plate steam (vapor) outlet above indoor at the emptying cap; And between emptying cap chamber and steam steam inlet pipe, provide leakage path that fluid is communicated with wherein in use; Steam (vapor) outlet gets into emptying cap chamber with discharge of steam; Steam impinges upon on the baffle plate; The liquid water that carries in the steam thus is separated, and liquid water is collected in emptying cap chamber, and is back to the steam inlet conduit through leakage path.
It is indoor that the steam inlet conduit may extend into the emptying cap.Leakage path can be included in the perforate that the steam steam inlet pipe extends into part in the emptying cap chamber.Can have many leakage paths, every all has one to extend in the emptying cap chamber perforate in the part at the steam steam inlet pipe.
Said cap body can comprise a bottom shell wall, towards leakage path import inclined bottom shell wall.
Said steam steam inlet pipe can comprise an external part, is used for said steam steam inlet pipe is attached to open-ended steam permeability cell.The position of said steam (vapor) outlet can make steam discharge with approximately perpendicular direction in use.
But said baffle plate is the level of approximation position in use.It is the plane that said baffle plate can be similar to.It is circular that said baffle plate can be similar to.
Said housing can comprise the top shell wall, and said emptying cap outlet is arranged in the shell wall of top.
Said emptying cap outlet can be positioned at said baffle plate top.Said baffle plate can be arranged in the vapor flow path between said steam (vapor) outlet and the outlet of said emptying cap.When the top is seen, said baffle plate may extend into outside the said steam (vapor) outlet.
Said baffle plate can comprise impingement region, and steam impinges upon on the said impingement region during use, and is arranged on the projection between the edge of said impingement region and said baffle plate.The radius of curvature that said projection has can in use make steam flow to said emptying cap outlet around said projection, and water droplet is disposed to the said emptying cap chamber from said projection.The radius of curvature of said projection can be between about 4 to 7mm.The radius of curvature of said projection can be about 5mm.The embowment that can in leaving the direction of said impingement region, make progress of said projection, and finish at the edge of said baffle plate.When the top is seen, said projection can be positioned at the position outside the said steam (vapor) outlet.
According to another aspect of the present invention, the present invention provides a vapour system, comprises the steam permeability cell, and said steam permeability cell has the emptying cap that meets any description of this paper.
The present invention can comprise the combination in any of function as referred to herein and/or limitation, the except combinations of mutually exclusive function.
Description of drawings
Description is only explained embodiment of the present invention with the mode of embodiment, wherein:
Fig. 1 schematically shows the perspective view of first embodiment of emptying cap;
Fig. 2 schematically shows the emptying cap of Fig. 1 with cutting plane;
Fig. 3 schematically shows the cross sectional view of the emptying cap of Fig. 1;
Fig. 4 schematically shows two views of baffle plate of the emptying cap of Fig. 1;
Fig. 5 schematically shows the zoomed-in view of baffle plate of the emptying cap of Fig. 1; And
Fig. 6 schematically shows the cross sectional view of second embodiment of emptying cap.
The specific embodiment
As shown in Figure 1, emptying cap 10 comprises the cap body 12 that is provided with emptying cap outlet 14, and steam inlet pipe (or conduit) 16.Steam inlet pipe 16 is provided with flange 18, can emptying cap 10 be connected to open-ended steam permeability cell, and the steam conducting that said steam permeability cell will be to be discharged is to atmosphere.
Referring to Fig. 2 and 3, the cap body 12 of emptying cap 10 comprises top shell wall 20, bottom shell wall 22, and annular sidewall 24, so cap body 12 is near cylindrical.Cap body 12 comprises the first top 12a and the second bottom 12b.The part of top shell wall 20 and annular sidewall 24 constitutes the first top 12a.A part that comprises bottom shell wall 22 and annular sidewall 24 constitutes the second bottom 12b.Top and the bottom 12a, 12b are assembled together and form cap body 12.Cap body 12 limits emptying cap chamber 26,26 inside at cap body 12, emptying cap chamber.
Emptying cap outlet 14 is arranged in the top shell wall 20 of top 12a of cap body 12 and is coaxial with approximate circle cap body 12.Therefore, the outlet 14 of emptying cap is above steam inlet pipe outlet 15.
As shown in Figure 4, baffle plate 34 comprises center impingement region 35 and the projection 40 of the embowment that makes progress.Projection 40 is between the edge of impingement region 35 and baffle plate 34.In this embodiment, projection 40 is upwards ring edges of embowment of baffle plate 34.The radius of curvature of projection 40 is about 5mm in this embodiment.Yet in other embodiments, said radius of curvature can be between 4 to 7mm.Hereinafter will be introduced the purpose of projection 40.
Baffle plate 34 is provided with three support members 36, and this support member is fixed on the edge of baffle plate 34 and each other with 120 ° circumferentially at interval.Support member 36 in axial direction extends and each support member 36 comprises one from the radially outwards outstanding antelabium 38 of the end of support member 36.Support member 36 is used for baffle plate 34 connections and is supported on cap body 12.Shown in Fig. 2 and 3, the antelabium 38 of support member 36 exports 14 edge join with the emptying cap and leans against on the top shell wall 20 of cap body 12, thus supporting baffle 34 on cap body 12.
During use, emptying cap 10 is attached to the openend (not shown) of steam permeability cell through flange 18.The steam permeability cell that said steam permeability cell can be the vapour system arbitrary portion, steam discharges from the steam permeability cell, or passes to atmosphere.Application example includes but not limited to the steam permeability cell of blowdown vessel, and the hot well cabinet is supplied with cabinet or pressure-driven pump.
Steam is introduced emptying cap 10 through the steam inlet 17 of steam inlet pipe 16.Steam is with steam (vapor) outlet 15 dischargings and the entering emptying cap chamber 26 of approximately perpendicular direction from steam inlet pipe 16 then.
As shown in Figure 5, the steam that steam (vapor) outlet 15 is discharged impinges upon on the impingement region 35 of horizontal baffle 34, and baffle plate 34 directly is positioned at the top of steam (vapor) outlet 15.When steam impinges upon 34 last times of baffle plate, be carried in the steam water droplet since surface tension attached to from vapor stream, separating on the surface of baffle plate and therefore.Because the pressure between emptying cap chamber 26 and the atmosphere falls, steam flows also so the surface of radially outwards flowing and crossing baffle plate 34 to emptying cap outlet 14.Steam flows on baffle plate 34 surfaces, will under surface tension effects, on the surface of baffle plate 34, radially spur to the edge of baffle plate 34 by the water droplet attached to baffle plate 34 surfaces.
When steam arrived the projection 40 of baffle plate 34, steam was attracted to the projection 40 of baffle plate 34 and therefore flows and leave emptying cap 10 through the outlet of emptying cap around projection 40.Steam reaches in Koln under the effect of effect and flows around projection 40.Yet the water droplet that is attached to baffle plate 34 surface is too heavy and can't under vapor action, cross projection 40, therefore is discharged at projection 40 places.Because projection 40 is positioned at the outside of steam (vapor) outlet 15, these water droplets concentrate on the bottom of emptying cap chamber 26.Radially inwardly flowed to steam inlet pipe 16 by baffle plate 34 isolated water from steam along the downward-sloping bottom shell wall 22 of cap body 12.Isolated water flows through the inside of escape orifice (leakage path) the 32 entering pipes 16 in the steam inlet pipe 16 then.Water flows downward and is back to vapour system along the inwall of steam inlet pipe 16 then.
Emptying cap 10 makes steam to arrange to atmosphere safely.This is the speed of steam because baffle plate 34 has slowed down, and the major part that steam carries water is separated from steam by baffle plate.What this caused discharging from emptying cap outlet almost is dry saturated steam.
Isolated liquid water in the steam is back to vapour system many benefits are provided.The water that uses in the vapour system contains the processing chemical substance that various helps improve systematic function.Must replenish these water with fresh water if water loses from system, and the fresh water that replenishes must be used these chemical substance treatment.Therefore, reduce the amount that has reduced the fresh water treatment chemical substance of adding system to from the water yield of vapour system loss.This escapable cost.And the water that loses from vapour system contains available heat, therefore with baffle plate isolated liquid water in the steam is returned the energy efficiency of the system that improved.
Further benefit is because isolated water is back to vapour system downwards along steam inlet pipe 16, so no longer need on emptying cap 10, connect externally drained pipeline.This has reduced the quantity of pipeline and joint, thus minimizing expense and set-up time.
Compare traditional baffle plate, the projection 40 of baffle plate 34 can extract (or separation) more liquid water from steam.This is because Koln reaches effect steam is attracted to and flows around projection 40 at least in part, and forces water droplet to be discharged into emptying cap chamber 26.Projection 40 is selected specific radius of curvature for use, make the steam that flows through baffle plate 34 be attracted to projection 40 and mobile around projection 40, and water droplet is discharged simultaneously from projection 40.
Shown in Figure 6 for second embodiment of emptying cap 10.This embodiment is similar to first embodiment, and the top thickness that removes steam inlet pipe 16 increases.In addition, the bottom of steam inlet pipe 16 is not equipped with flange, therefore can receive on the steam permeability cell with other modes.
Claims (21)
1. be used for the emptying cap of vapour system, comprise:
Form emptying cap chamber and have the cap body that the emptying cap exports;
The steam steam inlet pipe of split shed row steam in emptying cap chamber;
Be arranged on the indoor and baffle plate above steam (vapor) outlet of emptying cap, said baffle plate comprises impingement region, and steam impinges upon on the said impingement region during use, and projection is arranged between the edge of said impingement region and said baffle plate;
Wherein, in use, steam (vapor) outlet gets into emptying cap chamber with discharge of steam, and steam impinges upon on the baffle plate, thus the liquid water that carries in the steam is isolated.
2. emptying cap according to claim 1, wherein, the radius of curvature that said projection has in use makes steam flow to said emptying cap outlet around said projection, and water droplet is disposed to the said emptying cap chamber from said projection.
3. emptying cap according to claim 2, wherein, the radius of curvature of said projection is between about 4 to 7mm.
4. emptying cap according to claim 3, wherein, the radius of curvature of said projection is about 5mm.
According to before the described emptying cap of any claim, wherein, said projection is upwards embowment in leaving the direction of said impingement region, and finishes at the said edge of said baffle plate.
According to before the described emptying cap of any claim, wherein, the steam steam inlet pipe extends in the emptying cap chamber.
According to before the described emptying cap of any claim, also be included in the leakage path that provides fluid to be communicated with between emptying cap chamber and the steam steam inlet pipe.
8. according to the described emptying cap of claim 7 (when it is subordinated to claim 6), wherein, said leakage path comprises that being located at the steam steam inlet pipe extends like the perforate in the part of emptying cap chamber.
9. emptying cap according to claim 8 wherein, has a plurality of leakage paths, and each comprises that one is located at the steam steam inlet pipe and extends into the perforate in the part of emptying cap chamber.
According to before the described emptying cap of any claim, wherein, said cap body comprises towards the downward-sloping bottom shell wall of the import of leakage path.
11. according to before the described emptying cap of any claim, wherein, said steam steam inlet pipe comprises a coupling part, can said steam steam inlet pipe be connected to have open-ended steam permeability cell.
12. according to before the described emptying cap of any claim, wherein, the layout of said steam (vapor) outlet is discharged steam in use with approximately perpendicular direction.
13. according to before the described emptying cap of any claim, wherein, said baffle plate is level of approximation in use.
14. according to before the described emptying cap of any claim, wherein, said baffle plate is an almost plane.
15. according to before the described emptying cap of any claim, wherein, said baffle plate is a sub-circular.
16. according to before the described emptying cap of any claim, wherein, said cap body comprises the top shell wall, the outlet of said emptying cap is arranged in the shell wall of said top.
17. according to before the described emptying cap of any claim, wherein, the outlet of said emptying cap is positioned at said baffle plate top.
18. according to before the described emptying cap of any claim, wherein, said baffle plate is arranged in said steam (vapor) outlet and the said emptying cap vapor flow path between exporting.
19. according to before the described emptying cap of any claim, wherein, when when the top is seen, said baffle plate extends to outside the said steam (vapor) outlet.
20. emptying cap according to claim 19, wherein, said projection is positioned at the position outside the said steam (vapor) outlet.
21. a vapour system comprises a kind of steam permeability cell, it has like the described emptying cap of aforementioned any claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1010720.9A GB2481446B (en) | 2010-06-25 | 2010-06-25 | Vent head with drain returning liquid to inlet |
| GB1010720.9 | 2010-06-25 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110174076.2A Division CN102297414B (en) | 2010-06-25 | 2011-06-24 | Steam vent head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434871A true CN102434871A (en) | 2012-05-02 |
| CN102434871B CN102434871B (en) | 2014-12-24 |
Family
ID=42582994
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110174076.2A Active CN102297414B (en) | 2010-06-25 | 2011-06-24 | Steam vent head |
| CN201110271926.0A Active CN102434871B (en) | 2010-06-25 | 2011-06-24 | Vent head |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110174076.2A Active CN102297414B (en) | 2010-06-25 | 2011-06-24 | Steam vent head |
Country Status (3)
| Country | Link |
|---|---|
| CN (2) | CN102297414B (en) |
| DE (1) | DE102011077928B4 (en) |
| GB (1) | GB2481446B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2481446B (en) * | 2010-06-25 | 2017-11-29 | Spirax-Sarco Ltd | Vent head with drain returning liquid to inlet |
| CN102927554A (en) * | 2011-08-07 | 2013-02-13 | 斯普瑞斯-萨克有限公司 | Evacuation cap |
| CN106110771A (en) * | 2015-05-06 | 2016-11-16 | 通用汽车环球科技运作有限责任公司 | Device for deposit liquid from gas |
| FR3043566B1 (en) * | 2015-11-16 | 2017-12-29 | Dcns | SYSTEM FOR PURIFYING A FLUID, STEAM GENERATOR AND ELECTRIC POWER GENERATION PLANT |
| US10550999B2 (en) | 2017-02-27 | 2020-02-04 | Strahman Valves, Inc. | Direct diffuse vapor separator—steam trap system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB189717655A (en) * | 1897-07-27 | 1898-05-28 | Reginald Haddan | Improvements in Devices for Preventing the Discharge of Sparks and Cinders from Locomotive Smoke Stacks without Deteriorating the Draught. |
| US1354623A (en) * | 1920-02-20 | 1920-10-05 | George M Redgate | Vent-head |
| GB1306268A (en) * | 1970-06-06 | 1973-02-07 | ||
| US5114445A (en) * | 1991-06-18 | 1992-05-19 | Atlantic Richfield Company | Flare vent head |
| CN102297414A (en) * | 2010-06-25 | 2011-12-28 | 斯普瑞斯-萨克有限公司 | Steam vent head |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE292113C (en) | ||||
| US725698A (en) | 1902-04-21 | 1903-04-21 | Robert Henry Goacher | Separator for steam-boilers. |
| US1212556A (en) | 1915-02-01 | 1917-01-16 | Delauney Belleville Sa Des Ets | Steam-generator. |
| US1781568A (en) | 1928-04-12 | 1930-11-11 | Broeker Friedrich | Steam-drying or water-separating apparatus for steam-power plants |
| US2946475A (en) | 1957-03-26 | 1960-07-26 | Harold J Rockelman | Gasoline trap |
| FR2313552A1 (en) * | 1975-06-03 | 1976-12-31 | Bertin & Cie | PERFECTED DISCHARGE DEVICE FOR STEAM GENERATOR AND SIMILAR |
| GB1520631A (en) * | 1975-08-07 | 1978-08-09 | Curwen & Newberry Ltd | Steam pressure exhaust heads |
| US5901867A (en) * | 1995-10-25 | 1999-05-11 | Roberts Polypro, Inc. | Ventable cap |
| CN2529042Y (en) * | 2002-02-28 | 2003-01-01 | 陈新贤 | Evacuation pipe |
| JP4083072B2 (en) * | 2003-05-22 | 2008-04-30 | 株式会社タクマ | Steam separator |
| US7828865B2 (en) * | 2008-07-31 | 2010-11-09 | Cummins Filtration Ip, Inc. | Gas-liquid separator with dual flow impaction and coalescence |
| CN2905914Y (en) * | 2006-05-24 | 2007-05-30 | 赵广地 | Steam-water separation pressure-relief device for recovery of steam liquefied water |
| CN201265918Y (en) * | 2008-09-01 | 2009-07-01 | 鞍钢股份有限公司 | Water vapor diffusing device |
| CN201425296Y (en) * | 2009-03-20 | 2010-03-17 | 何乃昌 | Novel high-efficiency muffler |
-
2010
- 2010-06-25 GB GB1010720.9A patent/GB2481446B/en active Active
-
2011
- 2011-06-21 DE DE102011077928.0A patent/DE102011077928B4/en active Active
- 2011-06-24 CN CN201110174076.2A patent/CN102297414B/en active Active
- 2011-06-24 CN CN201110271926.0A patent/CN102434871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB189717655A (en) * | 1897-07-27 | 1898-05-28 | Reginald Haddan | Improvements in Devices for Preventing the Discharge of Sparks and Cinders from Locomotive Smoke Stacks without Deteriorating the Draught. |
| US1354623A (en) * | 1920-02-20 | 1920-10-05 | George M Redgate | Vent-head |
| GB1306268A (en) * | 1970-06-06 | 1973-02-07 | ||
| US5114445A (en) * | 1991-06-18 | 1992-05-19 | Atlantic Richfield Company | Flare vent head |
| CN102297414A (en) * | 2010-06-25 | 2011-12-28 | 斯普瑞斯-萨克有限公司 | Steam vent head |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011077928A1 (en) | 2011-12-29 |
| GB2481446B (en) | 2017-11-29 |
| CN102297414B (en) | 2014-07-16 |
| GB201010720D0 (en) | 2010-08-11 |
| DE102011077928B4 (en) | 2021-07-29 |
| CN102297414A (en) | 2011-12-28 |
| CN102434871B (en) | 2014-12-24 |
| GB2481446A (en) | 2011-12-28 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |