Patent Application
20230108521
The disclosure relates to an inlet module for a separator, a separator and a method of manufacturing a separator.
Conventional gullies under roadways and other paved areas comprise a chamber having inlet and outlet pipes which open into the chamber at a position above the bottom of the chamber. There may also be a top inlet, which provides access to the interior of the chamber through a grating provided at the roadway surface, for example in a gutter. In use, solids entering the chamber, whether from the inlet pipe or through the grating, collect under gravity in the base of the chamber and can be extracted at intervals by means of a suction pipe introduced into the chamber after removing the grating. Such gullies have a low separation efficiency. Furthermore, in the event of heavy storm flows, collected solids in the base of the chamber, and solids floating on the surface tend to be stirred up, and can pass into the outlet pipe.
A hydrodynamic vortex separator may be used to improve the separation efficiency of the gully. Such separators are suitable for removing sediment, litter and oil from surface water runoff.
An opening 211 is provided at the bottom of the inlet compartment 203 which serves as an inlet to the interior of the gully chamber 207. The inlet opening 211 is oriented so that inflowing liquid creates a circulating flow within the chamber 207 which assists in causing any solids within the incoming flow to accumulate and fall to the bottom of the chamber 207 or rise to the fluid surface depending upon their density. Similarly, the outlet compartment 205 has an opening which serves as an outlet from the interior of the chamber 207.
Although the bypass duct 209 may be cut to an appropriate length so that the inlet and outlet compartments 203, 205 align with the inlet and outlet ducts, the bypass duct 209 must be made available in different radii of curvature to conform to chambers having different diameters. Further, the size, number and position of the ducts is restricted by this arrangement and the inlet and outlet compartments 203, 205 and the bypass duct 209 limit the bypass capacity of the separator.
It is therefore desirable to provide an inlet module for a separator, a separator and a method of manufacturing a separator that address or alleviate some or all of these issues.
In accordance with a first aspect, there is provided an inlet module for a separator, the separator comprising a chamber defined by a chamber wall having a chamber wall opening, the inlet module comprising an attachment portion and a projecting portion extending from the attachment portion, wherein the attachment portion is configured to be coupled to the chamber wall and comprises an inlet for receiving into the inlet module liquid passing through the chamber wall opening, wherein the projecting portion comprises an outlet directed such that the liquid exits the inlet module and creates a circulating flow within the chamber about a central axis of the chamber, wherein the projecting portion is offset from the attachment portion such that a gap is formed between the projecting portion and the chamber wall through which the circulating flow can pass, wherein the projecting portion comprises a first wall defining the gap, a second wall opposing the first wall, a first side wall connecting the first and second walls at a first side of the inlet module and a second side wall opposing the first side wall and connecting the first and second walls at a second side of the inlet module, and wherein the second side wall is continuous and the first side wall defines the outlet such that the outlet is directed tangentially with respect to the central axis and such that the liquid exits the inlet module in a tangential direction with respect to the central axis.
The first wall, the second wall, the first side wall and the second side wall may define a passageway fluidly connecting the inlet to the outlet.
The cross-sectional area of the passageway may continuously decrease along at least a portion of the passageway between the inlet and the outlet
The second side wall may curve towards the outlet in a direction towards the outlet such that the projecting portion converges toward the outlet on a first plane parallel to the chamber wall.
The curve of the second side wall towards the outlet may be convex.
The first wall may curve towards the outlet in a direction towards the outlet such that the projecting portion converges toward the outlet on a second plane perpendicular to the chamber wall.
The curve of the first wall towards the outlet may be concave.
The first wall may curve towards the first side wall and the second side wall on a third plane perpendicular to the chamber wall.
The curve of the first wall towards the first side wall and the second side wall may be convex.
The second wall may be planar.
The outlet may be defined at a distal end of the first side wall.
The first side wall may not curve on a plane parallel to the chamber wall.
The attachment portion may comprise a first bypass opening. At least a portion of the first bypass opening may be disposed on an opposing side of the inlet to the outlet.
The attachment portion may comprise a second bypass opening. At least a portion of the first bypass opening may be disposed on an opposing side of the second bypass opening to the outlet.
The second bypass opening may be directed in the same direction as the outlet.
The attachment portion may comprise a pair of flanges disposed on opposing sides of the attachment portion, each of the pair of flanges comprising one or more slots or holes for coupling the flanges to the chamber wall.
The first wall and the second wall may be continuous.
The projecting portion may have a single inlet. The inlet to the projecting portion may be defined by the attachment portion. The projecting portion may have a single outlet which is defined by the first side wall.
There may be provided a separator comprising an inlet module as described in any preceding statement, a chamber as described in any preceding statement and an outlet module. The chamber wall may have a further chamber wall opening. The outlet module may comprise a further attachment portion and a further projecting portion extending from the further attachment portion. The further projecting portion may comprise a further inlet for receiving into the outlet module liquid in the chamber. The further attachment portion may be configured to be coupled to the chamber wall and may comprise a further outlet. The further chamber wall opening may be configured to receive liquid from the outlet module via the further outlet. The further projecting portion may be offset from the further attachment portion such that a further gap is formed between the further projecting portion and the chamber wall through which the circulating flow can pass.
The further inlet may be directed parallel to the central axis of the chamber.
The further inlet may have a larger cross-sectional area than the outlet.
The attachment portion of the inlet module may comprise a first bypass opening. At least a portion of the first bypass opening of the inlet module may be disposed on an opposing side of the inlet of the inlet module to the outlet of the inlet module. The further attachment portion of the outlet module may comprise a first bypass opening. At least a portion of the first bypass opening of the outlet module may be disposed on an opposing side of the further outlet of the outlet module to the further inlet of the outlet module. The lower edge of the first bypass opening of the outlet module may be lower than the lower edge of the first bypass opening of the inlet module.
The separator may further comprise a further inlet module as described in any preceding statement. The outlet of the inlet module and the outlet of the further inlet module may be directed in the same tangential direction such that liquid exits the inlet module and the further inlet module in the same tangential direction and the circulating flow within the chamber is in a single rotational direction about the central axis of the chamber and passes around the entirety of the chamber.
There may be provided an outlet module as described in any preceding statement.
In accordance with a second aspect, there is provided a method of manufacturing a separator as described in any preceding statement, the method comprising: obtaining an inlet module as described in any preceding statement from a range of inlet modules; obtaining a further inlet module as described in any preceding statement from the range of inlet modules; removing a distal end of the projecting portion of the further inlet module so as to form an outlet module as described in any preceding statement; and coupling the inlet module and the outlet module to the chamber wall so as to form a separator as described in in any preceding statement.
The range of inlet modules may comprise a range of inlet modules having a plurality of sizes and the further inlet module may be larger than the inlet module.
For a better understanding of the present disclosure, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which:
The attachment portion 27 comprises a first wall 60, a second wall 62, a first side wall 64 and a second side wall 66 (not shown in
The first wall 60 defines an inlet 36. A lower portion of the second wall 62 is substantially parallel to the first wall 60. An upper portion of the second wall 62 is angled towards an upper end of the first wall 60. The upper portion of the second wall 62 defines a first bypass region 37 comprising a first bypass opening 38 and a weir 39. The weir 39 is recessed and has an upper edge in the form of a reinforced rib that defines a lower edge of the first bypass opening 38. At least a portion of the first bypass opening 38 is disposed on an opposing side of the inlet 36 to an outlet 42 of the projecting portion 29. In particular, the outlet 42 is disposed on a lower side of the inlet 36 and the first bypass opening 38 is disposed on an upper side of the inlet 36. The inlet 36 is therefore disposed between the first bypass opening 38 and the outlet 42.
The first side wall 64 and the second side wall 66 are substantially planar. An upper portion of the first side wall 64 defines a second bypass opening 40. The first bypass opening 38 has a larger cross-sectional area than the second bypass opening 40. A first flange 44 and a second flange 46 extend outwards from the first side wall 64 and the second side wall 66, respectively. The first and second flanges 44, 46 form continuations of the first wall 60. The first and second flanges 44, 46 are provided with slots 48. The first and second flanges 44, 46 may alternatively be provided with holes.
The projecting portion 29 comprises a first wall 68 (not shown in
The second wall 70 of the projecting portion 29 is substantially planar and forms a continuation of the second wall 62 of the attachment portion 27. The second wall 70 of the projecting portion 29 is therefore substantially parallel to the first and second walls 60, 62 of the attachment portion 27.
The first side wall 72 is substantially planar and forms a continuation of the first side wall 64 of the attachment portion 27. A distal end or lower portion of the first side wall 72 defines the outlet 42. The outlet 42 is formed by a projecting flange 43 that extends beyond the remainder of the first side wall 72.
A reinforcing rib 45 extends around the projecting portion 29, between the attachment portion 27 and the outlet 42. In alternative arrangements, one or more ribs may extend around the projecting portion 29. In yet further alternative arrangements, the rib 45 may extend part way around the projecting portion 29 or may not be provided.
The first wall 60, the second wall 62, the first side wall 64 and the second side wall 66 of the attachment portion 27 and the first wall 68, the second wall 70, the first side wall 72 and the second side wall 74 of the projecting portion 29 define a fluid passageway fluidly connecting the inlet 36 to the outlet 42. The projecting portion 29 has a single inlet (i.e. only one inlet) and does not have a second inlet. The inlet to the projecting portion 29 is defined by the attachment portion 27 at the interface between the first wall 60, the second wall 62, the first side wall 64 and the second side wall 66 of the attachment portion 27 and the first wall 68, the second wall 70, the first side wall 72 and the second side wall 74 of the projecting portion 29. The interior geometry of the walls 60, 62, 64, 66, 68, 70, 72, 74 defining the fluid passageway substantially corresponds to the exterior geometry of the walls 60, 62, 64, 66, 68, 70, 72, 74.
The second side wall 74 of the projecting portion 29 forms a continuation of the second side wall 66 of the attachment portion 27. The second side wall 74 curves towards the outlet 42 in a direction towards the outlet 42 (i.e. toward the distal end of the first side wall 72 or projecting portion 29). Accordingly, the projecting portion 29 converges toward the outlet 42 on a first plane A. As is also shown, the gradient of curvature increases toward the distal end of the first side wall 72 or projecting portion 29 such that the curve of the second side wall 74 on the first plane A is convex.
As shown, an upper portion of the first wall 68 curves towards the outlet 42 in a direction towards the outlet 42 (i.e. toward the distal end of the first wall 68 or projecting portion 29). Accordingly, the upper portion of the projecting portion 29 converges toward the outlet 42 on a second plane B perpendicular to the first plane A. As is also shown, the gradient of curvature decreases toward the distal end of the first side wall 72 or projecting portion 29 such that the curve of the upper portion of the first wall 60 on the first plane B is concave. The lower portion (i.e. the distal end) of the first wall 68 of the projecting portion 29 is planar and is angled away from the plane Z, and, thus, the chamber wall 10, in a downward direction.
The first wall 68 of the projecting portion 29 also extends around an axis substantially corresponding to the central axis 15. Accordingly, the first wall 68 curves towards the first and second side walls 72, 74 on a third plane C perpendicular to the first plane A and the second plane B. The curve is convex. The gap 76 formed between the projecting portion 29 and the chamber wall 10 has a substantially constant cross-sectional profile along its length. The cross-sectional profile of the projecting portion 29 taken along the third plane C has the shape of a hydrofoil or aerofoil.
The attachment portion 127 comprises a first wall 160, a second wall 162, a first side wall 164 and a second side wall 166 (not shown in
The first wall 160 defines an outlet 136. A lower portion of the second wall 162 is substantially parallel to the first wall 160. An upper portion of the second wall 162 is angled towards an upper end of the first wall 160. The upper portion of the second wall 162 defines a first bypass region 137 comprising a first bypass opening 138. In contrast to the first bypass region 37 of the inlet module 6, the first bypass region 137 of the outlet module 106 does not comprise a recessed weir portion.
The first side wall 164 and the second side wall 166 are substantially planar and angled toward each other. A first flange 144 and a second flange 146 extend outwards from the first side wall 164 and the second side wall 166, respectively. The first and second flanges 144, 146 form continuations of the first wall 160. The first and second flanges 144, 146 are provided with slots 148. The first and second flanges 144, 146 may alternatively be provided with holes.
The projecting portion 129 comprises a first wall 168, a second wall 170, a first side wall 172 and a second side wall 174 (not shown in
The second wall 170 of the projecting portion 129 is substantially planar and forms a continuation of the second wall 162 of the attachment portion 127. The second wall 170 of the projecting portion 129 is therefore substantially parallel to the first and second walls 160, 162 of the attachment portion 127.
The first side wall 172 is substantially planar and forms a continuation of the first side wall 164 of the attachment portion 127. A distal end or lower portion of the first wall 168, the second wall 170, the first side wall 172, the first side wall 172 and the second side wall 174 define an inlet 142. A reinforcing rib 145 extends around the projecting portion 129, at the inlet 142.
The first wall 160, the second wall 162, the first side wall 164 and the second side wall 166 of the attachment portion 127 and the first wall 168, the second wall 170, the first side wall 172 and the second side wall 174 of the projecting portion 129 define a fluid passageway fluidly connecting the outlet 136 to the inlet 142. The interior geometry of the walls 160, 162, 164, 166, 168, 170, 172, 174 defining the fluid passageway substantially corresponds to the exterior geometry of the walls 160, 162, 164, 166, 168, 170, 172, 174.
At least a portion of the first bypass opening 138 is disposed on an opposing side of the outlet 136 to the inlet 142. In particular, the inlet 142 is disposed on a lower side of the outlet 136 and the first bypass opening 138 is disposed on an upper side of the outlet 136. The outlet 136 is therefore disposed between the first bypass opening 138 and the inlet 142.
The geometry of the outlet module 106 substantially corresponds to the geometry of the inlet module 6 described above. The projecting portion 129 is therefore offset from the attachment portion 127 such that a further gap or passageway is formed between the projecting portion 129 and the chamber wall 10 in the same manner as described previously with reference to the inlet module 6. The projecting portions 29, 129 are inline around the central axis 15. The geometry of the outlet module 106 differs from the geometry of the inlet module 6 in that the distal end of the projecting portion 129 terminates at the rib 145, rather than extending further away from the attachment portion 127. In addition, the features defining the inlet 36 of the inlet module 6 instead define the outlet 136 of the outlet module 106. Further, the inlet 142 is directed parallel to the central axis 15 of the chamber 4 rather than tangentially with respect to the central axis 15. In contrast to the inlet module 6, the outlet module 106 also does not comprise a second bypass opening.
A first step S1 of the method comprises obtaining a first inlet module having a first size. For example, a first inlet module having a size suitable for a 1.2 meter diameter chamber 4 may be obtained. The first inlet module may correspond to the inlet module 6 described above.
A second step S2 of the method comprises obtaining a second inlet module 6 having a second size. The second size may be larger than the first size. The size of the second inlet module 6 may be the next largest size up in the range of sizes. Using the above example, a second inlet module 6 having a size suitable for a 1.5 meter diameter chamber 4 may be obtained. In alternative methods, the first and second sizes may be equal.
A third step S3 of the method comprises removing a distal end of the projecting portion of the second inlet module 6 so as to form an outlet module 106 as described above. The removal process may be any subtractive manufacturing process, such as cutting.
A fourth step S4 of the method comprises installing the inlet module 6 and the outlet module 106 in the chamber 4. For example, the inlet module 6 and the outlet module 106 may be attached to the chamber wall 10 of the chamber 4 by screws passing through the slots 48, 148. The inlet module 6 is positioned such that its inlet 36 is adjacent the inlet opening 16 of the chamber wall 10. The outlet module 106 is positioned such that its outlet 136 is adjacent the outlet opening 18 of the chamber wall 10. Since the inlet module 6 comprises a weir 39 but the outlet module 106 does not, the lower edge of the first bypass opening 138 of the outlet module 106 is lower than the lower edge of the first bypass opening 38 of the inlet module 6. Since inlet module 6 and the outlet module 106 are separate modules that are not directly connected to each other, they can be easily installed within chambers 10 of varying sizes.
It will be appreciated that the order in which the steps S1, S2, S3, S4 are presented in
As mentioned above, the first side wall 72 defines the outlet 42 and the liquid passes along the passageway and exits the inlet module 6 via the outlet 42. The liquid exits the inlet module 6 in a first tangential direction with respect to the central axis 15, which, in the arrangements shown in
The shape of the walls 60, 62, 64, 66, 68, 70, 72, 74, and, thus, the shape of the passageway defined by the walls 60, 62, 64, 66, 68, 70, 72, 74, encourages the flow of fluid through the inlet module 6, minimizes turbulence and reduces head loss. Since the second side wall 74 is continuous and curves towards the outlet 42 in the manner described above, it acts to deflect (i.e. redirect) the flow of fluid from moving in an axial direction (i.e. parallel with the central axis 15) to moving in the tangential direction while minimizing the generation of turbulence. The geometry of the second side wall 74 results in the cross-sectional area of the passageway decreasing in a continuous manner (i.e. in a non-stepwise manner) over a portion of its length. This increases the velocity of the fluid passing through the passageway, and, thus, out of the outlet 42. This improves the stability of the circulating flow within the chamber 4, and, thus, the efficiency of solids removal.
Once the level of the liquid in the chamber 4 rises to the level of the inlet 142 of the outlet module 106, it enters the outlet module 106, passes along the passageway defined by the walls 160, 162, 164, 166, 168, 170, 172, 174, exits the outlet module 106 via the outlet 136, passes out of the chamber 4 via the outlet opening 18 of the chamber wall 10 and flows away from the chamber 4 via the outlet conduit 22. Since the inlet 142 is directed downwards, parallel to the central axis 15 of the chamber 4 rather than tangentially with respect to the central axis 15, solids are less likely to enter the outlet chute 18. Since the inlet 142 has a larger cross-sectional area than the outlet 42, head loss is reduced.
Since a further gap is formed between the projecting portion 129 of the outlet module 106 and the chamber wall 10, the circulating flow is also able to pass through the further gap 76, close to the chamber wall 10. This has the aforementioned benefit of preventing weakening of the circulating flow. This also has the benefit of increasing the extent to which the circulating flow sweeps the inlet 142, which reduces the likelihood of solids entering the outlet module 106. The outlet module 106 and consequently the outlet duct 22, will therefore receive substantially clean water.
The second bypass opening 40 is positioned on the same level as the inlet 36. The second bypass opening 40 allows floatables such as plastic bottles entering the inlet module 6 to pass into the chamber 4. Passage of floatables out of the second bypass opening 40 into the chamber 4 is encouraged, since the second bypass opening 40 is directed in the same direction as the outlet 42 (i.e. in a downstream direction). Accordingly, floatables do not block the inlet module 6. Since the second side wall 44 of the inlet module 6 does not comprise a second bypass opening, the floatables are prevented from re-entering the inlet module 6. Further, since the outlet module 106 does not comprise an equivalent second bypass opening, floatables are prevented from entering the outlet module 106 during normal use, and the quality of the water exiting the chamber 4 via the outlet module 106 is maintained.
During storm flow conditions, the first bypass opening 38 of the inlet unit 6 allows overflow water to pass out of the first bypass opening 38 of the inlet unit 6 and into the chamber 4, and the presence of the second bypass opening 138 of the outlet unit 106 allows overflow water to pass out of the chamber 4 into the outlet unit 106 via the second bypass opening 138. Since the lower edge of the first bypass opening 138 of the outlet module 106 is lower than the lower edge of the first bypass opening 38 of the inlet module 6, water is able to exit the chamber 4 via the first bypass opening 138 despite the effects of head loss.
In alternative arrangements, the outlet unit 106 may not be provided with a first bypass opening 138. In order to ensure enough flow is able to pass through the outlet unit 106 during storm conditions, a larger outlet unit 106 may be selected.
Although it has been described that the module 6 and the outlet module 106 are located 180 degrees apart from each other in the chamber 4, this need not be the case. In alternative arrangements, the module 6 and the outlet module 106 may be spaced less than 180 degrees apart from each other in the chamber 4. The outlet module 106 may be spaced closer to the second side wall 74 than the first side wall 72. In alternative arrangements, the outlet module 106 may be spaced closer to the first side wall 72 than the second side wall 74.
Although it has been described that the first walls, the second walls, the first side walls and the second side walls are unitary (i.e. that they are formed from a single body), they may alternatively be formed by separate, distinct bodies that are joined to each other.
Although it has been described that the separator 2 comprises a single inlet module 6, the separator 2 may alternatively comprise a plurality of inlet modules 6. Alternatively or additionally, although it has been described that the separator 2 comprises a single outlet module 106, the separator 2 may comprise a plurality of outlet modules 106. In arrangements in which the separator 2 comprises a plurality of inlet modules 6, the geometry of each of the inlet modules 6 may be the same or substantially the same. In arrangements in which the separator 2 comprises a plurality of inlet modules 6, the outlets 42 of each of the inlet modules 6 are oriented in the same tangential direction such that liquid exits the inlet module 6 and the further inlet module 6 in the same tangential direction and the circulating flow within the chamber 4 is in a single rotational direction about the central axis 15 of the chamber 4 and passes around the entirety of the chamber 4. Accordingly, each inlet module 6 contributes to and does not diminish the circulating flow within the chamber 4. In addition, the inlet modules 6 may be located at the same or substantially the same level within the chamber 4 and thus be inline. Accordingly, the flow from each inlet module 6 is directed behind the adjacent inlet module 6 and outlet module 106, thereby maintaining a circulating flow path and minimizing wake zones. More than two inlet modules 6 may be provided.
In alternative arrangements, features of the separator 2 may be mirrored such that the liquid exits the inlet module 6 in an clockwise direction when viewed from above.
For the avoidance of doubt, the present application extends to the subject-matter described in the following numbered statements:
Statement 1. An inlet module for a separator, the separator comprising a chamber defined by a chamber wall having a chamber wall opening, the inlet module comprising an attachment portion and a projecting portion extending from the attachment portion, wherein the attachment portion is configured to be coupled to the chamber wall and comprises an inlet for receiving into the inlet module liquid passing through the chamber wall opening, wherein the projecting portion comprises an outlet directed such that the liquid exits the inlet module and creates a circulating flow within the chamber about a central axis of the chamber, wherein the projecting portion is offset from the attachment portion such that a gap is formed between the projecting portion and the chamber wall through which the circulating flow can pass.
Statement 2. An inlet module as in statement 1, wherein the projecting portion comprises a first wall defining the gap, a second wall opposing the first wall, a first side wall connecting the first and second walls at a first side of the inlet module and a second side wall opposing the first side wall and connecting the first and second walls at a second side of the inlet module.
Statement 3. An inlet module as in statement 2, wherein the first wall, the second wall, the first side wall and the second side wall define a passageway fluidly connecting the inlet to the outlet.
Statement 4. An inlet module as in statement 2 or 3, wherein the second side wall curves towards the outlet in a direction towards the outlet such that the projecting portion converges toward the outlet on a first plane parallel to the chamber wall.
Statement 5. An inlet module as in statement 4, wherein the curve of the second side wall towards the outlet is convex.
Statement 6. An inlet module as in any of statements 2 to 5, wherein the first wall curves towards the outlet in a direction towards the outlet such that the projecting portion converges toward the outlet on a second plane perpendicular to the chamber wall.
Statement 7. An inlet module as in statement 6, wherein the curve of the first wall towards the outlet is concave.
Statement 8. An inlet module as in any of statements 2 to 7, wherein the first wall curves towards the first side wall and the second side wall on a third plane perpendicular to the chamber wall.
Statement 9. An inlet module as in statement 8, wherein the curve of the first wall towards the first side wall and the second side wall is convex.
Statement 10. An inlet module as in any of statements 2 to 9, wherein the second wall is planar.
Statement 11. An inlet module as in any of statements 2 to 10, wherein the first side wall defines the outlet such that the outlet is directed tangentially with respect to the central axis and such that the liquid exits the inlet module in a tangential direction with respect to the central axis.
Statement 12. An inlet module as in statement 11, wherein the outlet is defined at a distal end of the first side wall.
Statement 13. An inlet module as in any of statements 2 to 12, wherein the first side wall does not curve on a plane parallel to the chamber wall.
Statement 14. An inlet module as in any preceding statement, wherein the attachment portion comprises a first bypass opening, wherein at least a portion of the first bypass opening is disposed on an opposing side of the inlet to the outlet.
Statement 15. An inlet module as in statement 14, wherein the attachment portion comprises a second bypass opening, wherein at least a portion of the first bypass opening is disposed on an opposing side of the second bypass opening to the outlet.
Statement 16. An inlet module as in statement 15, wherein the second bypass opening is directed in the same direction as the outlet.
Statement 17. An inlet module as in any preceding statement, wherein the attachment portion comprises a pair of flanges disposed on opposing sides of the attachment portion, each of the pair of flanges comprising one or more slots or holes for coupling the flanges to the chamber wall.
Statement 18. A separator comprising an inlet module as in any preceding statement, a chamber as described in any preceding statement and an outlet module, wherein the chamber wall has a further chamber wall opening, wherein the outlet module comprises a further attachment portion and a further projecting portion extending from the further attachment portion, wherein the further projecting portion comprises a further inlet for receiving into the outlet module liquid in the chamber, wherein the further attachment portion is configured to be coupled to the chamber wall and comprises a further outlet, wherein the further chamber wall opening is configured to receive liquid from the outlet module via the further outlet, wherein the further projecting portion is offset from the further attachment portion such that a further gap is formed between the further projecting portion and the chamber wall through which the circulating flow can pass.
Statement 19. A separator as in statement 18, wherein the further inlet is directed parallel to the central axis of the chamber.
Statement 20. A separator as in statement 18 or 19, wherein the further inlet has a larger cross-sectional area than the outlet.
Statement 21. A separator as in any of statements 18 to 20, wherein the attachment portion of the inlet module comprises a first bypass opening, wherein at least a portion of the first bypass opening of the inlet module is disposed on an opposing side of the inlet of the inlet module to the outlet of the inlet module, wherein the further attachment portion of the outlet module comprises a first bypass opening, wherein at least a portion of the first bypass opening of the outlet module is disposed on an opposing side of the further outlet of the outlet module to the further inlet of the outlet module, wherein the lower edge of the first bypass opening of the outlet module is lower than the lower edge of the first bypass opening of the inlet module.
Statement 22. An outlet module as in any of statements 18 to 21.
Statement 23. A method of manufacturing a separator as in any preceding statement, the method comprising:
Statement 24. A method as in statement 23, wherein the range of inlet modules comprises a range of inlet modules having a plurality of sizes and wherein the further inlet module is larger than the inlet module.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2002320.6 | Feb 2020 | GB | national |
This application is the U.S. national stage of PCT/EP2021/054070 filed on Feb. 18, 2021, which claims priority of Great Britain Application No. 2002320.6 filed on Feb. 19, 2020, the contents of which are incorporated herein.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2021/054070 | 2/18/2021 | WO |
