CN102434871B - Vent head - Google Patents
Vent head Download PDFInfo
- Publication number
- CN102434871B CN102434871B CN201110271926.0A CN201110271926A CN102434871B CN 102434871 B CN102434871 B CN 102434871B CN 201110271926 A CN201110271926 A CN 201110271926A CN 102434871 B CN102434871 B CN 102434871B
- Authority
- CN
- China
- Prior art keywords
- steam
- steam vent
- vent head
- baffle plate
- outlet
- 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.)
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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
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 steam vent head for vapour system.
Background technology
Using in the industry of steam and heating process, the steam produced in the boiler with high-temperature high-pressure state by Pipe transfer to various industrial technology occasion, thus the energy in applying steam.
Some vapour system parts, as blowdown vessel, has open-ended steam permeability cell, for letting out steam in air.Current way on steam permeability cell, installs steam vent head to ensure steam to be disposed to safely in air with lower speed.
The shell of existing steam vent head has baffle plate, and described baffle arrangement is stop the steam entering described shell.The moisture content carried in steam is separated by described baffle plate from steam.Then dry steam is released into air by the outlet in described shell, and isolated water enters drainpipe, thus drains from vapour system.
Although this steam vent head is suitable for some application scenarios, also there are some shortcomings.Such as, can not whole moisture content of carrying of separate vapour.And steam vent head must adopt pipeline to connect, install very consuming time.
Therefore be necessary the steam vent head that a kind of improvement is provided, the separative efficiency of water from steam part can be improved, or reduce installation difficulty, or improve this 2 point simultaneously.
Summary of the invention
Describe according to an aspect of the present invention, the invention provides a kind of steam vent head for vapour system, comprising: define steam vent head room and and have steam vent head outlet cap body; There is the steam inlet conduit (steam inlet pipe) of the steam (vapor) outlet opened in steam vent head room; And baffle plate steam (vapor) outlet above indoor at steam vent head; And the leakage path providing fluid to be communicated with between steam vent head room and steam steam inlet pipe wherein in use, discharge of steam is entered steam vent head room by steam (vapor) outlet, steam impinges is on baffle plate, the liquid water carried in steam is thus separated, liquid water is collected in steam vent head room, and is back to steam inlet conduit through leakage path.
Steam inlet conduit may extend into steam vent head indoor.Leakage path can be included in the perforate that steam steam inlet pipe extends into part in steam vent head room.Can have many leakage paths, every bar has one to extend into the perforate in steam vent head room in part at steam steam inlet pipe.
Described cap body can comprise a bottom shell wall, towards the bottom shell wall that leakage path import is tilted.
Described steam steam inlet pipe can comprise an External connecting part, for described steam steam inlet pipe is attached to open-ended steam permeability cell.The position of described steam (vapor) outlet can make steam discharge with approximately perpendicular direction in use.
Described baffle plate in use can level of approximation position.It is plane that described baffle plate can be similar to.It is circular that described baffle plate can be similar to.
Described housing can comprise top shell wall, and described steam vent head outlet is arranged in the shell wall of top.
Described steam vent head outlet can be positioned at above described baffle plate.Described baffle plate can be arranged on described steam (vapor) outlet and described steam vent head export between vapor flow path in.When viewed from the top, described baffle plate may extend into outside described steam (vapor) outlet.
Described baffle plate can comprise impingement region, and during use, steam impinges is on described impingement region, and the projection between the edge being arranged on described impingement region and described baffle plate.The radius of curvature that described projection has can in use make steam flow to the outlet of described steam vent head around described projection, and water droplet is disposed to described steam vent head room from described projection.The radius of curvature of described projection can about between 4 to 7mm.The radius of curvature of described projection can be about 5mm.Described projection can upwards embowment in the direction leaving described impingement region, and terminates at the edge of described baffle plate.When viewed from the top, described projection can be positioned at the position outside described steam (vapor) outlet.
According to another aspect of the present invention, the invention provides a vapour system, comprise steam permeability cell, described steam permeability cell has the steam vent head meeting and describe arbitrarily herein.
The present invention can comprise any combination of function as referred to herein and/or limitation, except the combination of mutually exclusive function.
Accompanying drawing explanation
Description only illustrates embodiment of the present invention by way of example, wherein:
Fig. 1 schematically shows the perspective view of the first embodiment of steam vent head;
Fig. 2 schematically shows the steam vent head of Fig. 1 with cutting plane;
Fig. 3 schematically shows the cross sectional view of the steam vent head of Fig. 1;
Fig. 4 schematically shows two views of the baffle plate of the steam vent head of Fig. 1;
Fig. 5 schematically shows the zoomed-in view of the baffle plate of the steam vent head of Fig. 1; And
Fig. 6 schematically shows the cross sectional view of the second embodiment of steam vent head.
Detailed description of the invention
As shown in Figure 1, steam vent head 10 comprises the cap body 12 being provided with steam vent head outlet 14, and steam inlet pipe (or conduit) 16.Steam inlet pipe 16 is provided with flange 18, steam vent head 10 can be connected to open-ended steam permeability cell, described steam permeability cell by steam conducting to be discharged to air.
See Fig. 2 and 3, the cap body 12 of steam vent head 10 comprises top shell wall 20, bottom shell wall 22, and annular sidewall 24, and therefore cap body 12 is near cylindrical.Cap body 12 comprises the first top 12a and the second bottom 12b.A part for top shell wall 20 and annular sidewall 24 forms the first top 12a.The part comprising bottom shell wall 22 and annular sidewall 24 forms the second bottom 12b.Top and the bottom 12a, 12b are assembled together and form cap body 12.Cap body 12 limits steam vent head room 26, and steam vent head room 26 is in the inside of cap body 12.
Steam pipe opening 28 is located in the bottom shell wall 22 of cap body 12 bottom 12b and the axle collar 30 extends vertically from opening 28 place.Steam pipe opening 28 and the axle collar 30 coaxial with approximate cylindrical cap body 12.Steam inlet pipe 16 is arranged in opening 28, with make the axle collar 30 around and with the exterior surface of steam inlet pipe 16.The edge that steam inlet pipe 16 is provided with annular shoulder 29 and the axle collar 30 against.The top of steam inlet pipe 16 extend in steam vent head the room 26 and openend of described upper part and forms steam (vapor) outlet 15.The bottom of steam inlet pipe 16 extends to the outside of cap body 12 and the openend of described bottom forms steam inlet 17.The end of the bottom of steam inlet pipe 16 is provided with flange 18, and flange 18 can make steam vent head 10 be coupled to the end (not shown) of steam outlet pipe.
Steam inlet pipe 16 is provided with four and runs through inlet tube 16 tube wall escape orifice 32.In the same horizontal line, and escape orifice is with approximate 90 ° of intervals circumferentially each other for the bottom shell wall 22 of escape orifice 32 and cap body 12.The bottom shell wall 22 of cap body 12 radially-inwardly tilts downwards towards steam inlet pipe 16 and escape orifice 32.Escape orifice 32 provides leakage path between steam vent head room 26 and steam inlet pipe 16.
Steam vent head outlet 14 to be arranged in the top shell wall 20 of the top 12a of cap body 12 and coaxial with approximate circle cap body 12.Therefore, steam vent head outlet 14 is above steam inlet pipe outlet 15.
Baffle plate 34 to be arranged in steam vent head room 26 and to be positioned at the top of steam (vapor) outlet 15 and the below of steam vent head outlet 14.Therefore, baffle plate 34 is arranged between steam (vapor) outlet 15 and steam vent head outlet 14.In this embodiment, baffle plate 34 is almost plane, and is in use in approximately horizontal plane.Baffle plate 34 is sub-circular and coaxial with cylindrical cap body 12.The diameter of circular baffle plate 34 is greater than the diameter of steam (vapor) outlet 15, and therefore when viewed from the top, the edge of baffle plate 34 extends to outside steam (vapor) outlet 15.In this embodiment, the diameter of circular baffle plate 34 approximately export with steam vent head 14 diameter identical.
As shown in Figure 4, baffle plate 34 comprises the projection 40 of center impact region 35 and upwards embowment.Projection 40 is between impingement region 35 and the edge of baffle plate 34.In this embodiment, projection 40 is ring edges of the upwards embowment of baffle plate 34.The radius of curvature of projection 40 is about 5mm in this embodiment.But in other embodiments, described radius of curvature can between 4 to 7mm.Hereafter the object of projection 40 will be introduced.
Baffle plate 34 is provided with three support members 36, this support member be fixed on baffle plate 34 edge and each other with 120 ° of intervals circumferentially.Support member 36 in axial direction extends and each support member 36 comprises an antelabium 38 radially given prominence to from the end of support member 36.Support member 36 is for connecting baffle plate 34 and being supported on cap body 12.As seen in figures 2 and 3, the antelabium 38 of support member 36 exports the edge join of 14 and leans against on the top shell wall 20 of cap body 12 with steam vent head, supporting baffle 34 on cap body 12 thus.
During use, steam vent head 10 is attached to the openend (not shown) of steam permeability cell by flange 18.Described steam permeability cell can be the steam permeability cell of vapour system arbitrary portion, and steam from the discharge of steam permeability cell, or passes to air.Application example includes but not limited to the steam permeability cell of blowdown vessel, hot well cabinet, supply cabinet or pressure-driven pump.
Steam introduces steam vent head 10 by the steam inlet 17 of steam inlet pipe 16.Then steam to discharge from the steam (vapor) outlet 15 of steam inlet pipe 16 with approximately perpendicular direction and enters steam vent head room 26.
As shown in Figure 5, the steam impinges that steam (vapor) outlet 15 is discharged is on the impingement region 35 of horizontal baffle 34, and baffle plate 34 is directly positioned at the top of steam (vapor) outlet 15.When steam impinges is on baffle plate 34, is carried on surface that water droplet in steam is attached to baffle plate due to surface tension and is therefore separated from vapor stream.Due to the Pressure Drop between steam vent head room 26 and air, therefore steam also radially flow to steam vent head outlet 14 flowing and cross the surface of baffle plate 34.The water droplet being attached to baffle plate 34 surface under surface tension effects, in the flowing of baffle plate 34 surface, the surface of baffle plate 34 radially pulls to the edge of baffle plate 34 by steam.
When steam arrives the projection 40 of baffle plate 34, steam is attracted to the projection 40 of baffle plate 34 and therefore flows around projection 40 and leave steam vent head 10 by steam vent head outlet.Steam flows around projection 40 under Koln reaches the effect of effect.But the water droplet being attached to baffle plate 34 surface is too heavy and cannot cross projection 40 under vapor action, be therefore discharged at projection 40 place.Because projection 40 is positioned at the outside of steam (vapor) outlet 15, these water droplets concentrate on the bottom of steam vent head room 26.Steam inlet pipe 16 is radially-inwardly flowed to along the downward-sloping bottom shell wall 22 of cap body 12 by baffle plate 34 isolated water from steam.The isolated water escape orifice (leakage path) 32 then flow through in steam inlet pipe 16 enters the inside of pipe 16.Then water flow downward along the inwall of steam inlet pipe 16 and be back to vapour system.
Steam vent head 10 makes steam can safely discharged to air.The speed of steam this is because baffle plate 34 has slowed down, and the major part that steam carries water is separated from steam by baffle plate.This cause from steam vent head outlet discharge be almost dry saturated steam.
Liquid water isolated in steam is back to vapour system and provides many benefits.The water used in vapour system contains the processing chemical substance of various help improved system performance.If water loses from system, these water must be supplemented with fresh water, and the fresh water supplemented must use these chemical substance treatment.Therefore, the amount of adding the fresh water treatment chemical substance of system from the discharge reduction of vapour system loss to is reduced.This escapable cost.And, contain available heat from the water of vapour system loss, therefore with baffle plate, liquid water isolated in steam is returned the energy efficiency of the system of improving.
Further benefit is because isolated water is back to vapour system downwards along steam inlet pipe 16, so no longer need to connect exterior drain on steam vent head 10.Which reduce the quantity of pipeline and joint, thus reduce 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 steam is attracted to because Koln reaches effect and flows around projection 40 at least in part, and forces water droplet to be discharged into steam vent head room 26.Projection 40 selects specific radius of curvature, makes the steam flowing through baffle plate 34 be attracted to projection 40 and flow around projection 40, and water droplet is discharged from projection 40 simultaneously.
Figure 6 shows that second embodiment of steam vent head 10.This embodiment is similar to the first embodiment, except the upper thickness of steam inlet pipe 16 increases.In addition, the bottom of steam inlet pipe 16 is not equipped with flange, therefore can receive on steam permeability cell by other modes.
Claims (16)
1., for the steam vent head of vapour system, comprising:
Formed steam vent head room and have steam vent head outlet cap body;
At the steam steam inlet pipe of steam vent head room split shed row steam;
Be arranged on the indoor and baffle plate above steam (vapor) outlet of steam vent head, described baffle plate comprises impingement region, and during use, steam impinges is on described impingement region, and projection is arranged between the edge of described impingement region and described baffle plate;
Wherein, in use, discharge of steam is entered steam vent head room by steam (vapor) outlet, and the liquid water carried in steam, on baffle plate, is isolated by steam impinges thus;
Wherein, the radius of curvature that described projection has in use makes steam flow to the outlet of described steam vent head around described projection, and water droplet is disposed to described steam vent head room from described projection.
2. steam vent head according to claim 1, wherein, the radius of curvature of described projection is about between 4 to 7mm.
3. steam vent head according to claim 2, wherein, the radius of curvature of described projection is about 5mm.
4. steam vent head according to claim 1, wherein, described projection is upwards embowment in the direction leaving described impingement region, and terminates at the described edge of described baffle plate.
5. according to the steam vent head one of claim 1-4 Suo Shu, wherein, described steam inlet duct extends in steam vent head room; Wherein said steam vent head is also included in the leakage path providing fluid to be communicated with between steam vent head room and steam steam inlet pipe, and wherein said leakage path comprise be located at steam steam inlet pipe extend as the perforate in the part of steam vent head room.
6. steam vent head according to claim 5, wherein, has multiple leakage path, eachly comprises one and is located at steam steam inlet pipe and extends into perforate in the part of steam vent head room.
7. steam vent head according to claim 1, wherein, described cap body comprises towards the downward-sloping bottom shell wall of the import of leakage path.
8. steam vent head according to claim 1, wherein, described steam steam inlet pipe comprises a coupling part, described steam steam inlet pipe can be connected to and have open-ended steam permeability cell.
9. steam vent head according to claim 1, wherein, the layout of described steam (vapor) outlet makes steam discharge with approximately perpendicular direction in use.
10. steam vent head according to claim 1, wherein, described baffle plate is level of approximation in use.
11. steam vent heads according to claim 1, wherein, described baffle plate is almost plane.
12. steam vent heads according to claim 1, wherein, described baffle plate is sub-circular.
13. steam vent heads according to claim 1, wherein, described cap body comprises top shell wall, and described steam vent head outlet is arranged in the shell wall of described top.
14. steam vent heads according to claim 1, wherein, described baffle plate be arranged on described steam (vapor) outlet and described steam vent head export between vapor flow path in.
15. according to the steam vent head one of claim 1-4,6-14 Suo Shu, and wherein, when viewed from the top, described baffle plate extends to outside described steam (vapor) outlet.
16. steam vent heads according to claim 15, wherein, described projection is positioned at the position outside described steam (vapor) outlet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1010720.9 | 2010-06-25 | ||
| GB1010720.9A GB2481446B (en) | 2010-06-25 | 2010-06-25 | Vent head with drain returning liquid to inlet |
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 CN102434871A (en) | 2012-05-02 |
| CN102434871B true 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 |
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| 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 |
Family Cites Families (15)
| 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 discharging apparatus |
| CN201425296Y (en) * | 2009-03-20 | 2010-03-17 | 何乃昌 | Novel high-efficiency muffler |
| GB2481446B (en) * | 2010-06-25 | 2017-11-29 | Spirax-Sarco Ltd | Vent head with drain returning liquid to inlet |
-
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 (4)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102434871A (en) | 2012-05-02 |
| CN102297414B (en) | 2014-07-16 |
| DE102011077928B4 (en) | 2021-07-29 |
| GB2481446B (en) | 2017-11-29 |
| GB201010720D0 (en) | 2010-08-11 |
| DE102011077928A1 (en) | 2011-12-29 |
| GB2481446A (en) | 2011-12-28 |
| CN102297414A (en) | 2011-12-28 |
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