US20020020826A1 - Valve - Google Patents
Valve Download PDFInfo
- Publication number
- US20020020826A1 US20020020826A1 US09/839,916 US83991601A US2002020826A1 US 20020020826 A1 US20020020826 A1 US 20020020826A1 US 83991601 A US83991601 A US 83991601A US 2002020826 A1 US2002020826 A1 US 2002020826A1
- Authority
- US
- United States
- Prior art keywords
- lever
- fixating
- wing
- valve
- housing
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L11/00—Arrangements of valves or dampers after the fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2028—Details of bearings for the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/877—With flow control means for branched passages
- Y10T137/87788—With valve or movable deflector at junction
- Y10T137/87812—Pivoted valve or deflector
Definitions
- the present invention relates to a valve, especially switch-over valves for large channel cross sections.
- the valve has a housing that is provided with channel connections, and a wing that is pivotably mounted in the housing by means of an articulation and that can be driven by at least one drive shaft and a fixation lever assembly that comprises a fixation lever secured to the drive shaft and at least one link rod that is pivotably connected on the one hand with the fixation lever and on the other hand with the wing.
- Large wing switch-over valves are utilized to shut off channels in installation components, such as in desulfurization and nitrogen removal plants, and enable a continuing operation of the boiler via a bypass channel, even if the desulfurization and/or nitrogen removal unit must be shut down due to operating conditions.
- EP 0 707 176 B1 discloses a fixation lever switch-over valve for large capacity cross sections, according to which, in the region of the channel connection for a bypass channel, there is provided a drive shaft that extends transversely through the channel. Connected with the shaft is a fixation lever assembly in order to pivot the wing.
- the internal fixation lever shaft is offset on the articulation shaft by about 1 ⁇ 6 of the nominal inside diameter of the bypass channel into the cross section of the bypass channel. The fixation lever shaft therefore produces an addition pressure loss.
- bypass channel is generally closed and the fixation lever shaft that is disposed in the bypass channel does not lead to an additionally generated pressure loss during normal operation. For the short period of bypass operation, this can be disregarded.
- FIG. 1 is a cross-sectional view, transverse to the direction of flow, through the housing of one exemplary embodiment of an inventive valve, in the form of a switch-over valve, with the wing being disposed in the position in which the bypass channel is closed;
- FIG. 2 is a longitudinal section through the housing, with the wing being disposed in the position in which the operating channel is closed and the bypass channel is open;
- FIGS. 3 a show a piston/cylinder drive mechanism for the two and 3 b fixating lever assemblies
- FIG. 4 shows an electromechanical drive arrangement for the two fixating lever assemblies.
- the valve of the present invention is characterized primarily in that a respective drive shaft driver is mounted in the side walls of the housing and each passes through a respective one of the side walls, in that the fixating lever of a given one of the fixating lever assemblies is secured to the inwardly disposed end of a respective driver, and in that a rotary drive mechanism engages the outwardly disposed end of the driver.
- the fixating lever assemblies are disposed entirely on the outside in the vicinity of the side walls, the wings must be more rigid in order to maintain the same flexure values, which have a considerable influence upon the sealing tightness of the valve in the closure position.
- the wing can in one of the closure positions be disposed in a pocket formed in the channel connection, it is necessary when designing the valve as a simple shut off valve that the adjoining channel be widened on one side in order to provide a pocket for the wing in the open position of the valve.
- the housing 1 of the valve has a base 2 , two oppositely disposed side walls 3 and 4 , and a top or cover 5 .
- a channel connection 6 for an operating channel downstream of the entering gas flow A there are provided on the housing 1 a channel connection 6 for an operating channel, and on the upper side a channel connection for a bypass channel.
- a wing or blade 9 is pivotably mounted about a horizontal hinge or articulation shaft 10 in such a way that the wing 9 is pivotable between the closure position shown in FIG. 2 for closing the operating channel, and the position shown in FIG. 1 for closing the bypass channel; in this connection, the wing 9 is pivotable about approximately 90°. Inclined positions of the wing 9 , for example, approximately 30°, are also possible for enhancing flow and for reducing pressure loss.
- two fixating lever assemblies 11 and 12 are provided in the interior of the housing on the two oppositely disposed side walls 3 and 4 .
- a respective outer journal means 13 and a respective inner journal means 14 Welded or otherwise secured to the walls are a respective outer journal means 13 and a respective inner journal means 14 ; the outer journal means 13 is additionally supported against its respective wall by means of support plates 15 .
- a driver 16 passes through the two journal means 13 , 14 and the wall.
- a fixating lever 17 having two lever arms 17 a and 17 b .
- Pivotably disposed between the free ends of the two lever arms 17 a and 17 b is a fixation or link rod 18 , the other end of which is pivotably connected to the wing 9 .
- the driver 16 should be pivotable in the direction of the rotation arrow illustrated in FIG. 1.
- FIGS. 3 a and 3 b the arrangement shown in FIGS. 3 a and 3 b is suitable. Hydraulically or pneumatically actuatable piston/cylinder drive mechanisms 19 are pivotably connected to the wall, or to some other support structure, on the outer side. Secured to the free end of the driver 16 is a lever arm 21 , the free end of which is pivotably connected to the piston rod 20 . This arrangement can serve for a pivoting of the drive about, for example, 135°.
- the piston/cylinder drive mechanisms 19 are connected via lines 19 a and 19 b , and a control valve 19 c , with a pressure source 19 d and a shunt 19 e.
- worm gears or drives are placed upon the outer ends of the driver 16 .
- These worm drives can be driven (in a torque branching manner) by an electric motor 23 via a branching gear mechanism 24 , drive or Cardan shafts 25 , miter gears 26 , and drive or Cardan shafts 27 .
Abstract
Description
- The present invention relates to a valve, especially switch-over valves for large channel cross sections. The valve has a housing that is provided with channel connections, and a wing that is pivotably mounted in the housing by means of an articulation and that can be driven by at least one drive shaft and a fixation lever assembly that comprises a fixation lever secured to the drive shaft and at least one link rod that is pivotably connected on the one hand with the fixation lever and on the other hand with the wing.
- Large wing switch-over valves are utilized to shut off channels in installation components, such as in desulfurization and nitrogen removal plants, and enable a continuing operation of the boiler via a bypass channel, even if the desulfurization and/or nitrogen removal unit must be shut down due to operating conditions.
- Large wing switch-over valves are also used in gas turbine plants between gas turbines and waste heat boilers or exchangers.
- EP 0 707 176 B1 discloses a fixation lever switch-over valve for large capacity cross sections, according to which, in the region of the channel connection for a bypass channel, there is provided a drive shaft that extends transversely through the channel. Connected with the shaft is a fixation lever assembly in order to pivot the wing. The internal fixation lever shaft is offset on the articulation shaft by about ⅙ of the nominal inside diameter of the bypass channel into the cross section of the bypass channel. The fixation lever shaft therefore produces an addition pressure loss. If a power plant is operated nearly entirely via the desulfurization and/or nitrogen removal unit, as is the case in Europe, the bypass channel is generally closed and the fixation lever shaft that is disposed in the bypass channel does not lead to an additionally generated pressure loss during normal operation. For the short period of bypass operation, this can be disregarded.
- However, this evaluation is different if the power plants, for example as in the United States, are operated for half a year via the flue gas treatment unit, and in the other half year via the bypass. With such an arrangement, the fixation lever shaft that is disposed in the free channel cross section generates a pressure loss that must constantly be overcome, and which can no longer be economically disregarded, since in particular for channels having a large cross section an average loss of up to 15 to 20% can occur due to the drive shaft.
- It is therefore an object of the present invention to improve a valve of the aforementioned general type such that the average loss due to the valve drive is reduced.
- This object, and other objects and advantages of the present invention, will appear more clearly from the following specification in conjunction with the accompanying schematic drawings, in which:
- FIG. 1 is a cross-sectional view, transverse to the direction of flow, through the housing of one exemplary embodiment of an inventive valve, in the form of a switch-over valve, with the wing being disposed in the position in which the bypass channel is closed;
- FIG. 2 is a longitudinal section through the housing, with the wing being disposed in the position in which the operating channel is closed and the bypass channel is open;
- FIGS. 3a show a piston/cylinder drive mechanism for the two and 3 b fixating lever assemblies; and
- FIG. 4 shows an electromechanical drive arrangement for the two fixating lever assemblies.
- The valve of the present invention is characterized primarily in that a respective drive shaft driver is mounted in the side walls of the housing and each passes through a respective one of the side walls, in that the fixating lever of a given one of the fixating lever assemblies is secured to the inwardly disposed end of a respective driver, and in that a rotary drive mechanism engages the outwardly disposed end of the driver.
- With the inventive valve, the average loss is considerably reduced since no internal drive shaft passes through the cross section of the channel, either in the region of the operating channel or of the bypass channel.
- Since with the inventive valve the fixating lever assemblies are disposed entirely on the outside in the vicinity of the side walls, the wings must be more rigid in order to maintain the same flexure values, which have a considerable influence upon the sealing tightness of the valve in the closure position.
- Whereas with a switch-over valve the wing can in one of the closure positions be disposed in a pocket formed in the channel connection, it is necessary when designing the valve as a simple shut off valve that the adjoining channel be widened on one side in order to provide a pocket for the wing in the open position of the valve.
- Further specific features of the present invention will be described in detail subsequently.
- Referring now to the drawings in detail, the housing1 of the valve has a
base 2, two oppositely disposedside walls 3 and 4, and a top orcover 5. As can be seen from FIGS. 1 and 2, downstream of the entering gas flow A there are provided on the housing 1 achannel connection 6 for an operating channel, and on the upper side a channel connection for a bypass channel. - In a pocket8 provided on the bypass channel, a wing or
blade 9 is pivotably mounted about a horizontal hinge orarticulation shaft 10 in such a way that thewing 9 is pivotable between the closure position shown in FIG. 2 for closing the operating channel, and the position shown in FIG. 1 for closing the bypass channel; in this connection, thewing 9 is pivotable about approximately 90°. Inclined positions of thewing 9, for example, approximately 30°, are also possible for enhancing flow and for reducing pressure loss. - For pivoting the
wing 9 about thearticulation shaft 10, two fixatinglever assemblies 11 and 12 are provided in the interior of the housing on the two oppositely disposedside walls 3 and 4. Welded or otherwise secured to the walls are a respective outer journal means 13 and a respective inner journal means 14; the outer journal means 13 is additionally supported against its respective wall by means ofsupport plates 15. Adriver 16 passes through the two journal means 13, 14 and the wall. Secured on the inner end is a fixatinglever 17 having twolever arms 17 a and 17 b. Pivotably disposed between the free ends of the twolever arms 17 a and 17 b is a fixation or link rod 18, the other end of which is pivotably connected to thewing 9. - The
driver 16 should be pivotable in the direction of the rotation arrow illustrated in FIG. 1. - For this purpose, the arrangement shown in FIGS. 3a and 3 b is suitable. Hydraulically or pneumatically actuatable piston/
cylinder drive mechanisms 19 are pivotably connected to the wall, or to some other support structure, on the outer side. Secured to the free end of thedriver 16 is alever arm 21, the free end of which is pivotably connected to thepiston rod 20. This arrangement can serve for a pivoting of the drive about, for example, 135°. - The piston/
cylinder drive mechanisms 19 are connected vialines 19 a and 19 b, and acontrol valve 19 c, with apressure source 19 d and ashunt 19 e. - With the arrangement illustrated in FIG. 4, worm gears or drives are placed upon the outer ends of the
driver 16. These worm drives can be driven (in a torque branching manner) by anelectric motor 23 via abranching gear mechanism 24, drive or Cardanshafts 25, mitergears 26, and drive or Cardanshafts 27. - The specification incorporates by reference the disclosure of German priority document 100 19 686.1 of Apr. 20, 2000. The present invention is, of course, in no way restricted to the specific disclosure of the specification and drawings, but also encompasses any modifications within the scope of the appended claims.
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10019686.1 | 2000-04-20 | ||
DE10019686 | 2000-04-20 | ||
DE10019686A DE10019686A1 (en) | 2000-04-20 | 2000-04-20 | Flap, especially switch flap for large duct cross sections |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020020826A1 true US20020020826A1 (en) | 2002-02-21 |
US6443425B1 US6443425B1 (en) | 2002-09-03 |
Family
ID=7639515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/839,916 Expired - Lifetime US6443425B1 (en) | 2000-04-20 | 2001-04-20 | Valve |
Country Status (5)
Country | Link |
---|---|
US (1) | US6443425B1 (en) |
EP (1) | EP1148297B1 (en) |
AT (1) | ATE245267T1 (en) |
DE (2) | DE10019686A1 (en) |
ES (1) | ES2203560T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10465800B2 (en) * | 2016-01-22 | 2019-11-05 | Futaba Industrial Co., Ltd. | Valve device with axis through its tubular portion |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2869086B1 (en) * | 2004-04-19 | 2006-08-18 | Solios Environnement Sa | DEVICE FOR DEVIATION OF A GAS FLOW BY A SINGLE-CLOSE FLAP REGISTER |
US20070166875A1 (en) * | 2005-12-29 | 2007-07-19 | Intel Corporation | Method of forming a microelectronic package and microelectronic package formed according to the method |
DE102007016554A1 (en) * | 2007-04-05 | 2008-10-09 | Janich Gmbh & Co. Kg | Shut-off system for large cable cross-sections with a pivoting flap |
DE102009020843A1 (en) * | 2009-05-12 | 2010-11-25 | Janich Gmbh & Co. Kg | Shut-off system with a swing flap for large power cross sections |
FR3037098B1 (en) * | 2015-06-08 | 2017-05-26 | Ge Energy Products France Snc | EXHAUST SYSTEM FOR GAS TURBINE AND METHOD OF CONTROLLING SUCH A SYSTEM |
CN105134974B (en) * | 2015-07-30 | 2017-10-24 | 南方风机股份有限公司 | The isolating valve of the low leakage of safety |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3727880A (en) * | 1970-12-22 | 1973-04-17 | Stock Equipment Co | Valve |
US3847373A (en) * | 1973-06-26 | 1974-11-12 | Mosser Ind | Louver valve |
US3916949A (en) * | 1973-10-01 | 1975-11-04 | George W Armstrong | Enclosed gate valve |
DE3203711C2 (en) * | 1982-02-04 | 1984-03-01 | Adam Opel AG, 6090 Rüsselsheim | Flap valve for pipelines, in particular for heating and / or ventilation nozzles in motor vehicles |
US4821507A (en) * | 1987-05-29 | 1989-04-18 | Bachmann Industries, Inc. | Gas flow diverter |
US4919169A (en) * | 1987-05-29 | 1990-04-24 | Lothar Bachmann | Gas flow diverter |
DE3836861A1 (en) * | 1988-10-27 | 1990-05-03 | Stober & Morlock | SHUT-OFF DEVICE FOR CHANNELS WITH LARGE CROSS-SECTIONS, IN PARTICULAR SMOKE GAS CHANNELS |
LU87467A1 (en) * | 1989-03-06 | 1990-10-02 | Wurth Paul Sa | DEVICE FOR SEALING CONDUITS FOR THE TRANSPORT OF BULK PRODUCTS |
US5186205A (en) * | 1991-04-29 | 1993-02-16 | Bachmann Industries, Inc. | Valves for use in controlling the flow of a gas stream through ducts of large cross sectional areas |
US5233886A (en) * | 1992-05-26 | 1993-08-10 | Lucas Western, Inc. | Increased capacity face gear arrangement for transmitting torque through an angle and to a plurality of power extraction paths |
DE4239423A1 (en) * | 1992-11-24 | 1994-05-26 | Rappold & Co Gmbh Hermann | Hydraulic drive for tension lever flap valve - has two piston cylinder units attached to operating levers of spur wheel gear comprising two drive and one driven pinions. |
DE4436569A1 (en) | 1994-10-13 | 1996-04-18 | Rappold & Co Gmbh Hermann | Tension lever flap, especially for large wire cross-sections |
-
2000
- 2000-04-20 DE DE10019686A patent/DE10019686A1/en not_active Withdrawn
-
2001
- 2001-04-05 EP EP01108537A patent/EP1148297B1/en not_active Expired - Lifetime
- 2001-04-05 AT AT01108537T patent/ATE245267T1/en not_active IP Right Cessation
- 2001-04-05 ES ES01108537T patent/ES2203560T3/en not_active Expired - Lifetime
- 2001-04-05 DE DE50100376T patent/DE50100376D1/en not_active Expired - Lifetime
- 2001-04-20 US US09/839,916 patent/US6443425B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10465800B2 (en) * | 2016-01-22 | 2019-11-05 | Futaba Industrial Co., Ltd. | Valve device with axis through its tubular portion |
Also Published As
Publication number | Publication date |
---|---|
ATE245267T1 (en) | 2003-08-15 |
ES2203560T3 (en) | 2004-04-16 |
DE50100376D1 (en) | 2003-08-21 |
US6443425B1 (en) | 2002-09-03 |
EP1148297A1 (en) | 2001-10-24 |
EP1148297B1 (en) | 2003-07-16 |
DE10019686A1 (en) | 2001-10-31 |
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