CA2312148A1 - Collapsible mist eliminator - Google Patents
Collapsible mist eliminator Download PDFInfo
- Publication number
- CA2312148A1 CA2312148A1 CA 2312148 CA2312148A CA2312148A1 CA 2312148 A1 CA2312148 A1 CA 2312148A1 CA 2312148 CA2312148 CA 2312148 CA 2312148 A CA2312148 A CA 2312148A CA 2312148 A1 CA2312148 A1 CA 2312148A1
- Authority
- CA
- Canada
- Prior art keywords
- vane
- separator
- section
- sections
- flange
- 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.)
- Abandoned
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
An apparatus for the separation of material particles from gases, also referred to as a mist eliminator includes a separator vane having an upstream end and a downstream end and a projecting flange which defines, with an adjacent portion of the vane, a separating chamber having an open mouth opening towards the vane's upstream end. A pivot is provided between the upstream end of the vane and the flange for allowing the portions of the vane on opposite sides of the pivot to pivot relative to one another thereby to cause the flange to move towards the adjacent portion of the vane and reduce the open mouth of the separating chamber thereby to permit selective reduction of pressure drop passed the separator.
Description
TITLE
COLLAPSIBLE MIST ELIMINATOR
CROSS-REFERENCE TO RELATED APPLICATIONS
None.
SPONSORED RESEARCH AND DEVELOPMENT
None.
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to a separator for 15 separating material particles from a gas, especially liquid droplets from gases.
Fine particles have been removed from gases in the past for a variety of reasons in a variety of applications.
A typical application is the removal of liquid droplets forming a mist escaping from evaporative coolers, scrubbers and similar structures. Typically this is done by providing a plurality of parallel, zig-zag or sinuously shaped profiles spaced apart from one another in parallel relationship.
COLLAPSIBLE MIST ELIMINATOR
CROSS-REFERENCE TO RELATED APPLICATIONS
None.
SPONSORED RESEARCH AND DEVELOPMENT
None.
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to a separator for 15 separating material particles from a gas, especially liquid droplets from gases.
Fine particles have been removed from gases in the past for a variety of reasons in a variety of applications.
A typical application is the removal of liquid droplets forming a mist escaping from evaporative coolers, scrubbers and similar structures. Typically this is done by providing a plurality of parallel, zig-zag or sinuously shaped profiles spaced apart from one another in parallel relationship.
A very successful apparatus for separating liquid particles from gases, which is also referred to as a mist eliminator vane, is disclosed in U.S. Patent No.
3,953,183. As seen in that patent the mist eliminator 5 vanes are profiles that are in a wave or sinusoidal shape which has a separating chamber (also called a collection pocket) opening to the direction of the gas flow. The separating chamber distorts the gas flow along the vane because of the sudden changes of 10 direction in the profile and the position of the chamber. The curved vane and separating chamber structure of the mist eliminator disclosed in Patent No. 3,953,183 produces an improved separation efficiency.
In use, the shape of the mist eliminator vanes and the placement and positioning of the separating chamber formed by the flange on the vane cause a substantial pressure drop in the gas flowing from the inlet side of 20 the vane to the outlet side of the vane. In some temperature and humidity conditions when evaporative cooling is not needed, the evaporative cooler is not operated and no mist is created, but air escaping from the evaporative cooler or other device must still pass 25 through the mist eliminator and encounter the resulting pressure drop, thereby unnecessarily consuming energy.
SUMMARY OF THE INVENTION
30 It is an object of the present invention to provide an improved apparatus for separating material particles from gases in which the configuration of the apparatus can be varied in order to vary pressure drop during use.
Yet another object of the present invention is to provide a separator or mist eliminator vane that includes an integral separating chamber for separating material particles from a gas while allowing the shape of the separating chamber to be selectively varied in order to vary pressure drop along the vane.
Yet another object of the present invention is to provide an improved mist eliminator vane structure.
In accordance with an aspect of the present invention a separator of particles from gases, i.e., a mist eliminator vane, or separator is provided having first and second vane sections with opposed ends and means for pivotally connecting those opposed ends. The vane includes an upstream end on the first vane section and 15 a downstream end on the second vane section. The second vane section has projecting flange or blade which extends away from the second vane section towards the first vane section adjacent the means which pivotally connects the opposed ends of those vane 20 section. As a result, a separating chamber having an open mouth opening towards the upstream end of the vane is formed. By this structure the vane sections may pivot relative to each other about the pivotally connecting means between a first position wherein the 25 flange is spaced from the first vane section to open the mouth of the separating chamber and a second position wherein a portion of the flange is adjacent the first vane section to substantially close the mouth of the separating chamber thereby to reduce pressure 30 drop of gas flowing past the separator when the action of the separator is not needed.
The above, and other objects, features and advantages of this invention will be apparent in the following 35 detailed description of preferred embodiments thereof which are described with reference to the accompanying drawings as follows:
In use, the shape of the mist eliminator vanes and the placement and positioning of the separating chamber formed by the flange on the vane cause a substantial pressure drop in the gas flowing from the inlet side of 20 the vane to the outlet side of the vane. In some temperature and humidity conditions when evaporative cooling is not needed, the evaporative cooler is not operated and no mist is created, but air escaping from the evaporative cooler or other device must still pass 25 through the mist eliminator and encounter the resulting pressure drop, thereby unnecessarily consuming energy.
SUMMARY OF THE INVENTION
30 It is an object of the present invention to provide an improved apparatus for separating material particles from gases in which the configuration of the apparatus can be varied in order to vary pressure drop during use.
Yet another object of the present invention is to provide a separator or mist eliminator vane that includes an integral separating chamber for separating material particles from a gas while allowing the shape of the separating chamber to be selectively varied in order to vary pressure drop along the vane.
Yet another object of the present invention is to provide an improved mist eliminator vane structure.
In accordance with an aspect of the present invention a separator of particles from gases, i.e., a mist eliminator vane, or separator is provided having first and second vane sections with opposed ends and means for pivotally connecting those opposed ends. The vane includes an upstream end on the first vane section and 15 a downstream end on the second vane section. The second vane section has projecting flange or blade which extends away from the second vane section towards the first vane section adjacent the means which pivotally connects the opposed ends of those vane 20 section. As a result, a separating chamber having an open mouth opening towards the upstream end of the vane is formed. By this structure the vane sections may pivot relative to each other about the pivotally connecting means between a first position wherein the 25 flange is spaced from the first vane section to open the mouth of the separating chamber and a second position wherein a portion of the flange is adjacent the first vane section to substantially close the mouth of the separating chamber thereby to reduce pressure 30 drop of gas flowing past the separator when the action of the separator is not needed.
The above, and other objects, features and advantages of this invention will be apparent in the following 35 detailed description of preferred embodiments thereof which are described with reference to the accompanying drawings as follows:
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a transverse sectional view of a plurality of profiles or mist eliminator vanes arranged in 5 parallel and vertically with regard to each other, illustrating the prior art structure;
Figure 2 is a transverse sectional view similar to Figure 1 of two vanes constructed in accordance with 10 the present invention with their separating chamber in the open position;
Figure 3 is a view similar to Figure 2 showing the separator vanes in their closed position;
Figure 4 is an enlarged view similar to Figures 1 and 2 showing a single vane, its mounting arrangement and its movement from its open to its closed position;
20 Figure 5 is a view similar to Figure 2 illustrating another embodiment of the present invention with the separating chamber of the vane in its open position;
Figure 6 is a view similar to Figure 3 showing the position of the vane of Figure 5 with its separating chamber in the closed position; and Figure 7 is a pressure chart showing the difference in pressure loss between the open and closed positions of 30 an exemplary mist eliminator vane constructed in accordance with the present invention.
DETAILED DESCRIPTION OF INVENTION
35 Referring now the drawings in detail, and initially to Figure 1, a series of mist eliminator vanes constructed in accordance with the 'teachings of U.S. Patent No. 3,953,183 are illustrated. Each vane or wave profile 10 is mounted in any convenient and known manner in the discharge end of an evaporative cooler or other structure which discharges particles in a gas 5 stream. In an evaporative cooler application the particles are small liquid droplets in a mist in air.
As is known in the art, the vanes 10 are arranged parallel to each other at the discharge end of the 10 evaporative cooler to receive the discharged mist and gas stream. The gas stream enters the inlet end 12 of the pack of mist eliminator vanes at the inlet edges 14 of the vanes. As illustrated in Figure 1 the vanes are generally sinusoidal in shape and the air is deflected 15 along the vanes as indicated by the arrows. In the illustrative embodiment, the mist eliminator vane is formed of three arc sections, including a first or inlet convex section 16, a second central concave section 18 and a third convex discharge section 20 20 which leads to the discharge end 22 of the vane. From the discharge end the air escapes to the atmosphere.
The particular curvatures of these vane sections are described in detail in Patent No. 3,953,183 and those details do not form part of this invention.
The central sections 18 of the vanes have a plurality of serrations 24 formed therein. The second or central section 18 of each vane also has a flange or blade 26 extending tangentially therefrom towards the direction 30 of air flow to define a separating chamber 30 having an open mouth 28 between the flange and vane section 18.
As appears in Figure 1 and as described in detail in Patent No. 3,953,183, the spaces between the vanes 35 define gas ducts 32 for the air flowing into the vane pack. The dimension of each duct is at a minimum at the throat 21 defined between the flanges or blades 26 of one vane and the serrations 24 of an adjacent vane.
The ducts 32, from that point, enlarge further downstream towards the discharge ends of the vanes.
5 As gas enters the ducts 32 between the vanes it is deflected by the vanes in the direction of throat 21.
However, the mist particles from the gas tend to move straight because of their inertia force and so part of the particles are separated from the gas because they 10 tend to enter the separating chamber. In addition, the gas stream is deflected around flange 26 into throat 21 where the particles are moved in the radial direction by centrifugal force and impinge against the concave surface of the section 18 where they are caught by the 15 serrations 24. These particles, mainly liquid droplets, then flow down vertically along the serrations and are removed from the gas stream. As noted above this structure or mist eliminator vane has been found to have a very large separation efficiency.
As might be expected, because of the deflection of the air flow and the presence of flange 26, there is a pressure drop across the vanes as gas moves from the inlet edges 14 to the outlet edges 22. The pressure 25 drop consumes energy which is needed to force the air flow through the ducts to keep the air moving properly.
While the profiles with Figure 1 are highly successful in use, it has been found that there are occasions when 30 particle or mist elimination is not required. For example, in a gas turbine air inlet cooler in which the mist eliminator eliminates droplets from the evaporative cooler section, when the weather is cold the evaporative cooler is not operated. Thus there is 35 no mist to be eliminated. However, because the mist eliminator is still present in the air circuit, it is using up energy unnecessarily. In accordance with the 7 _ present invention, the profile has been constructed to be collapsible so that the separating chambers 30 are essentially closed against the profiles themselves and the wave form of the profile reduced. As a result the 5 pressure drop in the mist eliminator is dramatically reduced.
Figures 2-4 illustrate one embodiment of the invention.
In this embodiment vanes 10 are formed as two separate 10 vane sections, namely, an inlet or first section 40 and a second or outlet section 42. Vane section 40 has an inlet end 14 and an opposite end 44. It includes the first arc section 16 and part of the second arc section 18. The vane 42 includes the discharge end 22 and an 15 opposite end 46 which is opposed to and faces the end 44 of vane 16. It also includes the third arc section 20 and part of the second arc section 18 as well as flange or blade 26. The opposed ends 44, 46 of the first and second vane sections 40-42 are shaped to 20 cooperate with each in order to allow relative pivotal movement between the two vane sections. In particular, vane end 44 has a longitudinal pocket 48 formed wherein while vane end 46 has a longitudinal bead or bar-like configuration 50 formed therein which is received in 25 pocket 48. This arrangement allows the two vane sections to pivot relative to one another from the open position shown in Figure 2 to the position shown in Figure 3 wherein the separating chamber 30 is closed.
As seen in these figures flange 26 has a free end 54 30 which is located near the pivot point so that, in the closed position, it overlies a portion of the first vane section 40 to substantially close separating chamber 30. The reduction or elimination of the separating chamber in the configuration shown in Figure 35 3 reduces the pressure drop of air flowing through ducts 32 between adjacent profiles. As can be seen by comparing Figures 2 and 3 the deflection of the gases _ g _ flowing in the duct is reduced by this relative pivotal movement of the profile section.
Figure 4 is an enlarged illustration of one of the mist eliminator vanes shown in Figures 2 and 3 showing the open position of the separating chamber 30 in solid lines and the closed position in dotted lines.
The vanes can be supported adjacent the evaporative cooler with which they are used in any convenient manner as would be apparent to those skilled in the art. In the illustrative embodiment the inlet end 14 of the vanes are supported in recessed vertical bars 60 which have an open pocket 62 that receives the end 14.
15 These bars are in turn fixed to a support structure 64 at the bottom end of the vanes. A similar support structure (not shown) can be provided at the top edges of the vanes as viewed in Figure 4. In this embodiment of the invention the vanes are moved from their open to 20 closed position by the operating mechanism 66. This mechanism is shown schematically in Figure 4 and can be altered as desired as would be apparent to those skilled in the art.
25 In the illustrative embodiment mechanism 66 includes an operating plate 68 having vertical bars 70 extending therefrom which are received within the separating chambers 30 to engage between flange 26 on the convex side of vane section 18. As will be apparent, there is 30 one bar 70 associated with each of the vanes in the mist eliminator pack, with all of the bars 70 mounted on the plate 68 so that they move together.
Plate 68 is mounted in any convenient manner to move 35 from a first position also shown in solid lines in Figure 4 to a second position shown in dotted lines.
An appropriate guide track mechanism (such as an angled slot and pin guide) can be used to guide the movement of the plate between the two positions shown. Plate 68 is moved from one position to another in any convenient manner such as for example either manually or by a 5 hydraulic ram 74 or the like. The ram is connected to the plate in any convenient manner to move the plate in the appropriate reciprocal motion illustrated in the drawing. As will be appreciated, when ram 74 is operated to move plate 68 from its solid line position 10 to its dotted position the separating chamber 30 is closed.
Figures 5 and 6 illustrate another embodiment of the invention. In this embodiment the separator vanes 10 15 are formed as one piece integral units, with the first section 40 being integrally connected to the second section 42 by a live hinge. As will be understood by those skilled in the art a live hinge is a reduced section of thickness in the vane which allows the 20 sections on opposite sides thereof to move or pivot relative to one another. By this arrangement, the vanes can move from the position of Figure 5 to position of Figure 6 to close pocket 30. Alternatively the hinge portion can be formed by co-extruding a 25 flexible plastic material between first and second separation vane sections formed of a rigid plastic.
Figure 7 is a pressure graph illustrating a comparison of the pressure drop within a standard size mist 30 eliminator vane structure between the open and closed position of the vanes. The solid or "normal" line as shown Figure 7 represents the pressure drop in inches of water with the separating chamber open. The thinner line labeled "folded" shows the pressure drop through 35 the mist eliminator with the same vanes having their separating chamber in the closed position. This difference represents a substantial energy saving when the mist eliminator is collapsed.
Accordingly, a unique mist eliminator or separator vane structure has been disclosed which has all of the advantages of the prior art in terms of efficiency of particle separation, but which avoids the limitation of the prior art, i.e., the high pressure losses when mist elimination is not needed. A simple structure has been 10 developed which allows the vanes to be selectively moved between positions wherein the vanes will operate at maximum efficiency for separation when required and at minimal pressure drop loss when particle separation is not required.
Although illustrative embodiments of the present invention have been described here with reference to the accompanying drawings, it is to be understood that the invention is not limited to those precise 20 embodiments and that various changes and modifications may be effected therein by those skilled in the art without departing from the scope and spirit of this invention.
Figure 1 is a transverse sectional view of a plurality of profiles or mist eliminator vanes arranged in 5 parallel and vertically with regard to each other, illustrating the prior art structure;
Figure 2 is a transverse sectional view similar to Figure 1 of two vanes constructed in accordance with 10 the present invention with their separating chamber in the open position;
Figure 3 is a view similar to Figure 2 showing the separator vanes in their closed position;
Figure 4 is an enlarged view similar to Figures 1 and 2 showing a single vane, its mounting arrangement and its movement from its open to its closed position;
20 Figure 5 is a view similar to Figure 2 illustrating another embodiment of the present invention with the separating chamber of the vane in its open position;
Figure 6 is a view similar to Figure 3 showing the position of the vane of Figure 5 with its separating chamber in the closed position; and Figure 7 is a pressure chart showing the difference in pressure loss between the open and closed positions of 30 an exemplary mist eliminator vane constructed in accordance with the present invention.
DETAILED DESCRIPTION OF INVENTION
35 Referring now the drawings in detail, and initially to Figure 1, a series of mist eliminator vanes constructed in accordance with the 'teachings of U.S. Patent No. 3,953,183 are illustrated. Each vane or wave profile 10 is mounted in any convenient and known manner in the discharge end of an evaporative cooler or other structure which discharges particles in a gas 5 stream. In an evaporative cooler application the particles are small liquid droplets in a mist in air.
As is known in the art, the vanes 10 are arranged parallel to each other at the discharge end of the 10 evaporative cooler to receive the discharged mist and gas stream. The gas stream enters the inlet end 12 of the pack of mist eliminator vanes at the inlet edges 14 of the vanes. As illustrated in Figure 1 the vanes are generally sinusoidal in shape and the air is deflected 15 along the vanes as indicated by the arrows. In the illustrative embodiment, the mist eliminator vane is formed of three arc sections, including a first or inlet convex section 16, a second central concave section 18 and a third convex discharge section 20 20 which leads to the discharge end 22 of the vane. From the discharge end the air escapes to the atmosphere.
The particular curvatures of these vane sections are described in detail in Patent No. 3,953,183 and those details do not form part of this invention.
The central sections 18 of the vanes have a plurality of serrations 24 formed therein. The second or central section 18 of each vane also has a flange or blade 26 extending tangentially therefrom towards the direction 30 of air flow to define a separating chamber 30 having an open mouth 28 between the flange and vane section 18.
As appears in Figure 1 and as described in detail in Patent No. 3,953,183, the spaces between the vanes 35 define gas ducts 32 for the air flowing into the vane pack. The dimension of each duct is at a minimum at the throat 21 defined between the flanges or blades 26 of one vane and the serrations 24 of an adjacent vane.
The ducts 32, from that point, enlarge further downstream towards the discharge ends of the vanes.
5 As gas enters the ducts 32 between the vanes it is deflected by the vanes in the direction of throat 21.
However, the mist particles from the gas tend to move straight because of their inertia force and so part of the particles are separated from the gas because they 10 tend to enter the separating chamber. In addition, the gas stream is deflected around flange 26 into throat 21 where the particles are moved in the radial direction by centrifugal force and impinge against the concave surface of the section 18 where they are caught by the 15 serrations 24. These particles, mainly liquid droplets, then flow down vertically along the serrations and are removed from the gas stream. As noted above this structure or mist eliminator vane has been found to have a very large separation efficiency.
As might be expected, because of the deflection of the air flow and the presence of flange 26, there is a pressure drop across the vanes as gas moves from the inlet edges 14 to the outlet edges 22. The pressure 25 drop consumes energy which is needed to force the air flow through the ducts to keep the air moving properly.
While the profiles with Figure 1 are highly successful in use, it has been found that there are occasions when 30 particle or mist elimination is not required. For example, in a gas turbine air inlet cooler in which the mist eliminator eliminates droplets from the evaporative cooler section, when the weather is cold the evaporative cooler is not operated. Thus there is 35 no mist to be eliminated. However, because the mist eliminator is still present in the air circuit, it is using up energy unnecessarily. In accordance with the 7 _ present invention, the profile has been constructed to be collapsible so that the separating chambers 30 are essentially closed against the profiles themselves and the wave form of the profile reduced. As a result the 5 pressure drop in the mist eliminator is dramatically reduced.
Figures 2-4 illustrate one embodiment of the invention.
In this embodiment vanes 10 are formed as two separate 10 vane sections, namely, an inlet or first section 40 and a second or outlet section 42. Vane section 40 has an inlet end 14 and an opposite end 44. It includes the first arc section 16 and part of the second arc section 18. The vane 42 includes the discharge end 22 and an 15 opposite end 46 which is opposed to and faces the end 44 of vane 16. It also includes the third arc section 20 and part of the second arc section 18 as well as flange or blade 26. The opposed ends 44, 46 of the first and second vane sections 40-42 are shaped to 20 cooperate with each in order to allow relative pivotal movement between the two vane sections. In particular, vane end 44 has a longitudinal pocket 48 formed wherein while vane end 46 has a longitudinal bead or bar-like configuration 50 formed therein which is received in 25 pocket 48. This arrangement allows the two vane sections to pivot relative to one another from the open position shown in Figure 2 to the position shown in Figure 3 wherein the separating chamber 30 is closed.
As seen in these figures flange 26 has a free end 54 30 which is located near the pivot point so that, in the closed position, it overlies a portion of the first vane section 40 to substantially close separating chamber 30. The reduction or elimination of the separating chamber in the configuration shown in Figure 35 3 reduces the pressure drop of air flowing through ducts 32 between adjacent profiles. As can be seen by comparing Figures 2 and 3 the deflection of the gases _ g _ flowing in the duct is reduced by this relative pivotal movement of the profile section.
Figure 4 is an enlarged illustration of one of the mist eliminator vanes shown in Figures 2 and 3 showing the open position of the separating chamber 30 in solid lines and the closed position in dotted lines.
The vanes can be supported adjacent the evaporative cooler with which they are used in any convenient manner as would be apparent to those skilled in the art. In the illustrative embodiment the inlet end 14 of the vanes are supported in recessed vertical bars 60 which have an open pocket 62 that receives the end 14.
15 These bars are in turn fixed to a support structure 64 at the bottom end of the vanes. A similar support structure (not shown) can be provided at the top edges of the vanes as viewed in Figure 4. In this embodiment of the invention the vanes are moved from their open to 20 closed position by the operating mechanism 66. This mechanism is shown schematically in Figure 4 and can be altered as desired as would be apparent to those skilled in the art.
25 In the illustrative embodiment mechanism 66 includes an operating plate 68 having vertical bars 70 extending therefrom which are received within the separating chambers 30 to engage between flange 26 on the convex side of vane section 18. As will be apparent, there is 30 one bar 70 associated with each of the vanes in the mist eliminator pack, with all of the bars 70 mounted on the plate 68 so that they move together.
Plate 68 is mounted in any convenient manner to move 35 from a first position also shown in solid lines in Figure 4 to a second position shown in dotted lines.
An appropriate guide track mechanism (such as an angled slot and pin guide) can be used to guide the movement of the plate between the two positions shown. Plate 68 is moved from one position to another in any convenient manner such as for example either manually or by a 5 hydraulic ram 74 or the like. The ram is connected to the plate in any convenient manner to move the plate in the appropriate reciprocal motion illustrated in the drawing. As will be appreciated, when ram 74 is operated to move plate 68 from its solid line position 10 to its dotted position the separating chamber 30 is closed.
Figures 5 and 6 illustrate another embodiment of the invention. In this embodiment the separator vanes 10 15 are formed as one piece integral units, with the first section 40 being integrally connected to the second section 42 by a live hinge. As will be understood by those skilled in the art a live hinge is a reduced section of thickness in the vane which allows the 20 sections on opposite sides thereof to move or pivot relative to one another. By this arrangement, the vanes can move from the position of Figure 5 to position of Figure 6 to close pocket 30. Alternatively the hinge portion can be formed by co-extruding a 25 flexible plastic material between first and second separation vane sections formed of a rigid plastic.
Figure 7 is a pressure graph illustrating a comparison of the pressure drop within a standard size mist 30 eliminator vane structure between the open and closed position of the vanes. The solid or "normal" line as shown Figure 7 represents the pressure drop in inches of water with the separating chamber open. The thinner line labeled "folded" shows the pressure drop through 35 the mist eliminator with the same vanes having their separating chamber in the closed position. This difference represents a substantial energy saving when the mist eliminator is collapsed.
Accordingly, a unique mist eliminator or separator vane structure has been disclosed which has all of the advantages of the prior art in terms of efficiency of particle separation, but which avoids the limitation of the prior art, i.e., the high pressure losses when mist elimination is not needed. A simple structure has been 10 developed which allows the vanes to be selectively moved between positions wherein the vanes will operate at maximum efficiency for separation when required and at minimal pressure drop loss when particle separation is not required.
Although illustrative embodiments of the present invention have been described here with reference to the accompanying drawings, it is to be understood that the invention is not limited to those precise 20 embodiments and that various changes and modifications may be effected therein by those skilled in the art without departing from the scope and spirit of this invention.
Claims (14)
1. A separator of particles from gases comprising a separator vane having an upstream end and a downstream end, said vane including 1) a projecting flange defining with the adjacent portion of the vane a separating chamber having an open mouth opening towards said upstream end and 2) pivot means between said upstream end and said flange for allowing the portions of the vane on opposite sides of the pivot means to pivot about the pivot means thereby to cause the flange to move toward an adjacent portion of the vane and reduce the open mouth of the separating chamber.
2. A separator as defined in Claim 1 including means for pivoting the portions of the vane on opposite sides of the pivot means between a first position in which said mouth of the separating chamber is open and a second position in which the mouth of the separating chamber is closed.
3. A separator as defined in Claim 2 wherein said portions of the vane on opposite sides of the pivot means include opposed end portions including cooperating means for forming the pivot means.
4. A separator as defined in Claim 2 wherein said pivot means is an integral hinge formed in the separator vane.
5. A separator of particles from gases comprising a separator vane including first and second vane sections having opposed ends and means for pivotally connecting said opposed ends; said vane having an upstream end on said first vane section and a downstream end on said second vane section; and said second vane section having a projecting flange extending away from said second vane section towards said first vane section adjacent said means for pivotally connecting the opposed ends of the vane sections thereby to define a separating chamber having an open mouth opening towards said upstream end of the vane; whereby said vane sections may pivot about said pivotally connecting means between a first position wherein the flange is spaced from the first vane section to open said mouth and a second position wherein a portion of the flange is adjacent said first vane section to substantially close said mouth thereby to reduce pressure drop of gas flowing past the separator.
6. A separator as defined in Claim 5 including means for pivoting the vane sections about said pivotally connecting means to move said vane sections between said first and second positions.
7. A separator as defined in Claim 6 wherein said means for pivotally connecting said opposed ends of the vane sections comprise cooperating means formed on said opposed ends for defining a transverse pivot axis in the separator vane.
8. A separator as defined in Claim 6 wherein said means for pivotally connecting the ends of the opposed vanes comprises an integrally formed hinge between the opposed ends of the vane sections.
9. A separator of particles from gases comprising a separator vane having an upstream end and a downstream end and alternatively convexly and concavely shaped wall sections defining a generally continuous wave extending from said upstream end to said downstream end; said wave comprising at least three arc sections including a first convex arc section commencing adjacent said upstream end, a second concave arc section and a third convex arc section terminating adjacent said downstream end; the third convex arc section of the vane including a flange extending generally tangentially therefrom towards said upstream end over the convex apex of the second concave arc section to define with the second arc section a separating chamber; and means for pivotally connecting the first arc section of the vane to the second arc section of the vane to permit relative pivotal movement of the first arc section with respect to the second arc section between a first position wherein said separating chamber is open towards the flow of gas and a second position wherein said separating chamber is closed and the pressure drop of gas passing the vane is reduced as compared to the pressure drop of the gas in the first position.
10. A separator as defined in Claim 9 wherein said flange is arcuate and has a concave surface facing the convex surface of said second concave arc section and a free end spaced from said second concave arc section in said first position.
11. A separator as defined in Claim 10 wherein said free end of said flange engages said first convex arc section in said second position.
12. A separator as defined in Claim 11 including means for pivoting the first and second arc sections relative to each other about said means for pivotally connecting the first and second arc sections.
13. A separator as defined in Claim 12 wherein said means for pivotally connecting said first and second arc sections comprises cooperating means formed on said arc sections for defining a transverse pivot axis therebetween.
14. A separator as defined in Claim 12 wherein said means for pivotally connecting said first and second arc sections comprises an integrally formed live hinge.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34292599A | 1999-06-30 | 1999-06-30 | |
| US09/342,925 | 1999-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2312148A1 true CA2312148A1 (en) | 2000-12-30 |
Family
ID=23343877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2312148 Abandoned CA2312148A1 (en) | 1999-06-30 | 2000-06-22 | Collapsible mist eliminator |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU5883800A (en) |
| CA (1) | CA2312148A1 (en) |
| MX (1) | MXPA00006451A (en) |
| WO (1) | WO2001000299A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020028926A (en) * | 2002-01-10 | 2002-04-17 | 김휘주 | A Process Preparing Pulp Molded Bottle Foaming |
| US9118404B2 (en) | 2011-02-18 | 2015-08-25 | Incube Labs, Llc | Apparatus, system and method for underwater signaling of audio messages to a diver |
| IN2014MN02120A (en) * | 2012-04-27 | 2015-09-11 | Grg Llc | |
| US20170089208A1 (en) * | 2015-09-30 | 2017-03-30 | General Electric Company | Vane separators with acoustic insulation |
| KR102340656B1 (en) * | 2019-12-10 | 2021-12-17 | 두산중공업 주식회사 | Chevron vane and moisture separator comprising the same |
| JP2023088019A (en) * | 2021-12-14 | 2023-06-26 | 国立大学法人広島大学 | Dust collection mechanism of construction machine and construction machine including the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB189402680A (en) * | ||||
| DE262921C (en) * | ||||
| DE4229171C1 (en) * | 1992-09-02 | 1993-09-16 | Ltg Lufttechnische Gmbh, 7000 Stuttgart, De |
-
2000
- 2000-06-22 CA CA 2312148 patent/CA2312148A1/en not_active Abandoned
- 2000-06-23 WO PCT/US2000/017196 patent/WO2001000299A1/en not_active Application Discontinuation
- 2000-06-23 AU AU58838/00A patent/AU5883800A/en not_active Withdrawn
- 2000-06-27 MX MXPA00006451 patent/MXPA00006451A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA00006451A (en) | 2004-10-28 |
| AU5883800A (en) | 2001-01-31 |
| WO2001000299A1 (en) | 2001-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5249922A (en) | Apparatus of stationary blade for axial flow turbine, and axial flow turbine | |
| US4557740A (en) | Weather louver | |
| US6146092A (en) | Centrifugal blower assembly with a diffuser | |
| US6331195B1 (en) | Coanda water extractor | |
| EP0965728A3 (en) | Particle trap in a cooling system for gas turbine engines | |
| JP2004084669A5 (en) | ||
| EP0739291A1 (en) | Engine exhaust gas deflection system | |
| JPH09507549A (en) | Gas turbine airfoil | |
| US4615659A (en) | Offset centrifugal compressor | |
| CA1339910C (en) | Device for separating liquid droplets from a gas stream | |
| US4844382A (en) | Dual turning vane air inlet assembly | |
| CN1481269A (en) | Moisture separator and steam generator | |
| CA2312148A1 (en) | Collapsible mist eliminator | |
| US4891169A (en) | Transition duct for centrifugal fan | |
| JPH11141494A (en) | Impeller structure of multiblade blower | |
| JP2022510036A (en) | Vortex finder for cyclone separator | |
| CA2436638A1 (en) | Variable-geometry turbine stator blade, particularly for aircraft engines | |
| US5800582A (en) | Compact water collector | |
| FI104509B (en) | Axial fan guide rail | |
| KR20220123703A (en) | Vortex Finder for Cyclone Separator | |
| EP0023777A1 (en) | Liquid eliminator and blade therefor | |
| JP2004130257A (en) | Grease filter | |
| US20040022627A1 (en) | Blower adapter assembly | |
| RU2811973C1 (en) | Vortex eliminator for cyclone separator | |
| JP2634145B2 (en) | filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |