Cyclone mist remover and method

Abstract

A cyclone box for removing liquid from a fluidized steam flow includes a box structure having side walls and a roof having a first inclined side and a second inclined side for draining into a drainage channel formed along the side walls. At least one cyclone can is mounted within the box structure and includes a cylindrical wall forming a flow chamber having an inlet end at the front end of the box structure and an outlet end at the rear end of the box structure. A swirler positioned within the cylindrical wall imparts a swirling motion to the steam flow as it flows through the flow chamber, generating centrifugal force that causes the liquid in the steam flow to coalesce on the inner surface of the cylindrical wall. One or more outlets allow the coalesced liquid on the inner surface of the cylindrical wall to be drained into the volume of the box structure outside the cylindrical can, then onto the roof of the cyclone box below, and into the drainage channel.

Description

Technical Field

[0001] <Related Applications> This application claims priority to U.S. Provisional Application No. 63 / 453,629, filed on March 21, 2023, the entire disclosure of which is incorporated herein by reference.

Background Art

[0002] The present disclosure relates generally to an apparatus for separating liquid entrained with gas in a flowing vapor stream, and more particularly to a cyclone mist eliminator and a method of using a cyclone mist eliminator to separate liquid from gas in a flowing vapor stream.

[0003] A cyclone mist eliminator within a column or vessel is used to remove liquid, typically in the form of droplets, from a vapor stream to improve process efficiency, reduce product loss, and prevent equipment damage in various types of processes. In one type of axial flow cyclone mist eliminator, several cyclone boxes, each containing a plurality of cyclone cans, are arranged in a stacked relationship in a plurality of rows.

[0004] Each cyclone can may include a cylindrical wall that forms an open-ended flow chamber oriented in the direction of flow of the vapor stream such that the vapor stream enters the flow chamber at an inlet end, flows along the length of the flow chamber, and then exits at an outlet end. An activator or swirler is disposed within the flow chamber to impart a swirling motion to the vapor stream as it flows through the flow chamber. The swirling motion of the vapor stream generates a centrifugal force that separates the liquid droplets by causing them to collide and coalesce against the inner surface of the cylindrical wall. The coalesced liquid then flows to an opening provided in the cylindrical wall near the outlet end of the flow chamber, exits the flow chamber through the opening, and enters the open volume of the box outside the cylindrical wall.

[0005] In one embodiment, the liquid is drained from the cyclone boxes through a series of individual drain pipes connected to the outlet end of each cyclone box, then into a sump, from which it is removed by an additional drain pipe. In another embodiment, the drain pipes from the cyclone boxes are unnecessary by arranging each row of cyclone cans within two cyclone boxes, slightly spaced apart from each other, to form a single central vertical channel in the space between the cyclone boxes. The roof of each cyclone box is sloped toward the central vertical channel, and the liquid can be drained from each cyclone box onto the sloped roof of the cyclone box below, and then into the central vertical channel. The size of the cyclone boxes must be individually adjusted for each application to correspond to the number of cyclone cans required to obtain the desired separation capacity.

[0006] Further improvements to the design of these cyclone mist removers are desirable to provide improved operation under high gas and liquid loads, and in applications where the column or vessel may be subjected to oscillating motion from wind or waves that could adversely affect separation performance. [Overview of the project]

[0007] This “Summary of the Invention” is provided in a simplified form to introduce some concepts that will be further described in the following “Modes for Carrying Out the Invention.” This “Summary of the Invention” is not intended to identify any major or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Other aspects and advantages of this disclosure will become apparent from the following detailed description of the embodiments and the accompanying drawings.

[0008] In one embodiment, the present disclosure relates to a cyclone box for removing liquid from a fluid vapor flow. The cyclone box comprises a box structure having a front end and a separated rear end, a first separated side wall and a second separated side wall extending in the direction between the front end and the rear end, and a roof having a first inclined side and a second inclined side, wherein the first inclined side of the roof is inclined toward the first side wall to allow liquid to be drained toward and into a first drainage channel extending downward along the first side wall when the roof is on the first inclined side, and the second inclined side of the roof is inclined toward the second side wall to allow liquid to be drained toward and into a second drainage channel extending downward along the second side wall when the roof is on the second inclined side. The cyclone box also comprises at least one cyclone canister mounted within the box structure, the cyclone canister having a cylindrical wall forming a flow chamber with an inlet end at the front end of the box structure and an outlet end at the rear end of the box structure on the opposite side; a swirl mechanism positioned within the cylindrical wall that imparts a swirling motion to the vapor flow as it flows through the flow chamber from the inlet end to the outlet end, generating centrifugal force to coalesce the liquid in the vapor flow on the inner surface of the cylindrical wall; and one or more outlets that allow the coalesced liquid on the inner surface of the cylindrical wall to be drained into the volume of the box structure outside the cylindrical canister.

[0009] In another embodiment, the disclosure relates to a cyclone mist remover comprising a plurality of cyclone boxes arranged in a vertically stacked row within a separation container. Each cyclone box comprises a box structure having a front end and a separated rear end, a first separated side wall and a second separated side wall extending in the direction between the front end and the rear end, and a roof having a first inclined side and a second inclined side, wherein the first inclined side of the roof is inclined toward the first side wall to allow liquid to drain toward and into a drainage channel extending downward along the first side wall when the roof is on the first inclined side, and the second inclined side of the roof is inclined toward the second side wall to allow liquid to drain toward and into another of a number of drainage channels extending downward along the second side wall when the roof is on the second inclined side. The drainage channel is formed by a first side wall and one adjacent opposing second wall of a cyclone box in the same row, and by a second side wall and another adjacent opposing first wall of a cyclone box in the same row. The cyclone box further comprises at least one cyclone can mounted within the box structure, the cyclone can comprising: a cylindrical wall forming a flow chamber having an inlet end at the front end of the box structure and an opposite outlet end at the rear end of the box structure; a stationary swirl positioned within the cylindrical wall and, as it flows through the flow chamber from the inlet end to the outlet end, imparting a swirling motion to the vapor flow that generates centrifugal force, causing the liquid in the vapor flow to coalesce on the inner surface of the cylindrical wall; and one or more outlets that allow the coalesced liquid on the inner surface of the cylindrical wall to be drained into the volume of the box structure outside the cylindrical can.

[0010] In a further embodiment, the present disclosure relates to a method for separating liquid from a fluid vapor stream using the cyclone mist remover described above. The method includes the steps of: letting the vapor stream flow through the flow chamber of a cyclone can; imparting a swirling motion to the vapor stream as it passes through a swirl to cause the liquid in the vapor stream to collide with the inner surface of the cylindrical wall and coalesce on the inner surface; guiding the coalesced liquid from the inner surface of the cylindrical wall through an outlet into the volume of a box structure outside the cylindrical can for drainage; and flowing the drained liquid into a drainage channel on and along a first and second inclined slide on the roof. [Brief explanation of the drawing]

[0011] This disclosure is described in detail below with reference to the attached drawings.

[0012] [Figure 1] This is a schematic side view taken in vertical cross-section of a container in which a liquid is intended to be separated from a vapor flow using an array of cyclone boxes arranged in a stacked row relationship. [Figure 2] Figure 1 is a partial perspective view of the container, showing the front or upstream side of the cyclone box arrangement. [Figure 3] Figure 1 is a partial perspective view of the container, showing the rear or downstream side of the cyclone box arrangement. [Figure 4] This is a rear view of the cyclone box array, seen in a vertical cross-section. [Figure 5] A rear perspective view of one part of the cyclone box with a portion removed to show internal details. [Figure 6] This is a partial rear perspective view of the cyclone box array. [Modes for carrying out the invention]

[0013] The subject matter of this disclosure is described herein in detail to satisfy statutory requirements. However, the description itself is not intended to limit the scope of this patent. Rather, the inventors intend that the claimed subject matter may also be embodied in other ways, in conjunction with other current or future technologies, to include different components, combinations of components, steps, or combinations of steps similar to those described herein.

[0014] Referring more closely to the drawings, first to Figure 1, an embodiment of a vessel in which a liquid is separated from a fluid vapor flow is represented overall by the number 10. The vessel 10 may be used solely for the separation of a liquid, typically in the form of droplets, from a fluid vapor flow, or additional processes may be carried out within the vessel 10 in conjunction with the liquid separation. The vessel 10 may be located on land, or offshore, such as on a floating platform, barge, or ship. In some embodiments, the vapor flow may arise from upstream, midstream, or downstream processing of oil and gas. For example, the vapor flow in some embodiments may be a process flow involved in scrubbing absorption, stripping, distillation, evaporation, compression, or other processes.

[0015] The container 10 comprises a horizontally extending outer shell 12, which is generally cylindrical in shape, but other shapes, including polygons, are also possible and within the scope of the present invention. The shell 12 is constructed of one or more rigid materials having any suitable diameter and length, and which are preferably inert to or compatible with the fluids and conditions present during the operation of the container 10.

[0016] The shell 12 of the container 10 defines an open internal region 14 where the desired liquid separation from the vapor flow and, optionally, other processes take place. The path of the vapor flow as it enters the container 10, moves within it, and then exits is schematically represented by arrows 16.

[0017] In the illustrated embodiment, the vapor stream 16 enters the container 10 through a supply nozzle 18 that rotates the radial inlet flow direction of the vapor stream 16 toward the hemispherical end of the container 10, where it reverses its flow direction and then flows toward the opposite end of the container 10. The vapor stream 16 then encounters an arbitrary condenser 20, which may be of mesh and / or vane type. The condenser 20 operates to increase the size of the droplets drawn into the vapor stream 16 and remove some of the liquid from the vapor stream 16.

[0018] After leaving the condenser 20, the vapor stream 16 passes through the cyclone mist remover 22, where droplets are separated from the vapor stream 16. The vapor stream then enters the chamber 24 before exiting the container 10 through the outlet nozzle 26. The separated liquid descends within the container 10 and can be removed through the bottom removal nozzle 28.

[0019] Referring to Figures 2-6, the cyclone mist remover 22 extends chordally across the cross-section of the shell 12 within the open internal region 14 of the container 10, closer to the outlet nozzle 26 than the supply nozzle 18. The cyclone mist remover 22 comprises a plurality of cyclone boxes 30, which may be arranged and fixed in a manner aligned with each other in a plurality of vertically stacked rows, and the cyclone boxes 30 are aligned horizontally and vertically. In one embodiment, most or all of the cyclone boxes 30 are of uniform standard size and structure, which allows the cyclone boxes 30 to be easily manufactured and assembled to form a cyclone mist remover in a container 10 having a wide range of diameters or chord lengths.

[0020] Each cyclone box 30 comprises a box structure 32 extending parallel to each other and to which at least one, in other embodiments, cyclone cans 34 are mounted. In one example, the cyclone box 30 may have two rows of cyclone cans 34, with the same number of cyclone cans 34 in each row, and the cyclone cans 34 in one row are aligned perpendicularly to the cyclone cans 34 in the other row. In another example, the cyclone box 30 has two rows of cyclone cans 34, each having a different number of cyclone cans 34, and the cyclone cans 34 in one row may be staggered relative to the cyclone cans 34 in the other row. In the illustrated embodiment, most of the cyclone boxes 30 have four cyclone cans 34 arranged at a square pitch. The number of cyclone cans 34 within each box structure 32 may be the same throughout the entire cyclone mist remover 22, or more cyclone cans 34 may be arranged in a particular part of the cyclone mist remover 22 than in other parts. For example, smaller cyclone boxes 30 with fewer cyclone cans 34 can be placed at the ends of one or more rows to allow the cyclone mist remover 22 to fit more closely to the curved shell 12 of the container 10.

[0021] Each box structure 32 has an upstream side, i.e., a front end 36, and an opposite downstream side, i.e., a rear end 38, spaced a predetermined distance from the front end 36. The box structure 32 also includes a first spaced side wall and a second spaced side wall 40 and 42 extending in the direction between the front end 36 and the rear end 38, and a roof 44 having a first inclined side surface and a second inclined side surface 46 and 48 sloping downward from the top 50. In one embodiment, the first spaced side wall and the second spaced side wall 40 and 42 and the roof 44 may be formed by bending a sheet of material. In a cyclone box 30 positioned around a cyclone mist remover 22 and not receiving liquid drained from above, the roof 44 may be flat rather than inclined, and only function to cover the box structure 32.

[0022] The first inclined side surface 46 of the roof 44 is inclined in the direction of the first side wall 40, and when the liquid is on the first inclined side surface 46, the liquid is enabled to drain toward and into a drain channel 52 that extends vertically downward along the first side wall 40. The drain channel 52 is formed in the space between the first side wall 40 of the box structure 32 of one cyclone box 30 and the opposing second wall 42 of an adjacent box structure 32 of the cyclone box 30. In an embodiment where the cyclone boxes 30 are vertically aligned with the cyclone boxes 30 in an adjacent row of cyclone boxes 30, the drain channel 52 extends continuously vertically downward from row to row.

[0023] Similarly,the second inclined side surface 48 of the roof 44 is inclined in the direction of the second side wall 42, and when the liquid is on the second inclined side surface 48, it extends vertically downward along the second side wall 42 and is enabled to drain toward and into another drain channel 52 formed in the space between the second side wall 42 of the box structure 32 of one cyclone box 30 and the opposing first wall 40 of an adjacent box structure 32 of the cyclone box 30.

[0024] Also in this case, in an embodiment where the cyclone boxes 30 are vertically aligned with the cyclone boxes 30 in the adjacent columns of the cyclone boxes 30, each of the drain channels 52 extends continuously vertically downward from column to column. Advantageously, the number of drain channels 52 in each column of the cyclone boxes 30 is determined by the number of cyclone boxes 30 in that column. For example, as shown in the lower column of FIG. 4, when there are 10 cyclone boxes 30 in a row, nine drain channels 52 can be formed by the spacing between the first side wall 40 and the second side wall 42 of the box structure 32 of the cyclone boxes 30 in that row, thereby significantly increasing the liquid removal capacity compared to a conventional cyclone mist eliminator where only two cyclone boxes are used and the liquid is drained in only one direction into a single central drain channel from the roof. By providing bidirectional drainage of liquid on the roof 44 of the box structure 32 of the cyclone boxes 30 disclosed herein and providing more cyclone boxes 30, more liquid can enter the drain channels 50 even in a situation where the container 10 undergoes a rocking motion under the load of wind or waves.

[0025] In one embodiment, the first inclined side surface 46 and the second inclined side surface 48 have the same or substantially the same surface area such that an equal amount of liquid is directed to the drain channels 52 of the first side wall 40 and the second side wall 42 of the box structure 32 of each cyclone box 30. In other embodiments, the areas of the first inclined side surface 46 and the second inclined side surface 48 are different in at least some of the cyclone boxes 30 and can flow a greater amount of liquid in one direction than the other. For example, the roof 44 of the cyclone boxes 30 at or near the outer periphery of the cyclone mist eliminator 22 can be constructed to direct more liquid towards the shell 12 than in the radially inward direction in order to distribute the liquid more evenly throughout the cyclone mist eliminator 22.

[0026] Each of the cyclone cans 34 within the cyclone box 30 may include a cylindrical wall 54 that forms a flow chamber 56 for the vapor flow 16. The flow chamber 56 has an inlet end 60 at the front end 36 of the box structure 32 and an outlet end 62 at the rear end 38 of the box structure 32. An activator or swirl 58, which can be fixed in place so as not to move, is positioned within the cylindrical wall 54 and imparts a swirling motion to the vapor flow 16 as it flows through the flow chamber 56 from the inlet end 60 to the outlet end 62. This swirling motion generates a centrifugal force that shakes and combines the liquid in the vapor flow 16 against the inner surface of the cylindrical wall 54.

[0027] The combined liquid, as a result of the fluid vapor flow 16, moves along the inner surface of the cylindrical wall 54 toward the outlet end and can flow out of the flow chamber 56 through one or more outlets, which may take the form of elongated slots 64 provided in the cylindrical wall 54 downstream of the swivel 58. The flowing liquid is drained into the volume of the outer box structure 32 of the cylindrical can 34 and delivered onto the roof 44 of the cyclone box 30 below. The liquid then flows over the first inclined side surface 46 and the second inclined side surface 48 of the roof 44 and enters the drainage channel 52. In one embodiment, the first and second side walls 40 and 42 of each cyclone box 30, except for the bottom row, may rest directly on the roof 44 of the box structure 32 of the cyclone box 30 below. To allow liquid on the roof 44 to pass through the first and second side walls 40 and 42, drainage openings 66 (Figure 6) are formed at the lower part of the first and second side walls 40 and 42, allowing liquid on the roof 44 to be drained into the drainage channel 52 through the drainage openings 62.

[0028] Each cyclone can 34 may further include a recirculation pipe 68 having an inlet end 70 that is open to the volume of the box structure 32 outside the cylindrical can 34 and an outlet end 72 that is open to the flow chamber 56 in the cylindrical wall 54. The recirculation pipe 68 allows a portion of the vapor flow 16 that has left the flow chamber 56 through an elongated slot 64 to re-enter the flow chamber 56 and separates any liquid that may remain in the re-entering vapor flow 16. The majority of the vapor flow 16 that flows through the flow chamber 56 exits through the open outlet end 62 of the flow chamber 56.

[0029] Each cyclone box 30 may include a front plate 74 located at the front end 36 of the box structure 32 and joined to a first and second side wall 40 and 42, a roof 44, and a cylindrical wall 54 at the inlet end 60 of the flow chamber 56, and a rear plate 76 located at the rear end 38 of the box structure 32 and joined to a first and second side wall 40 and 42, a roof 44, and a cylindrical wall 54 at the outlet end 62 of the flow chamber 56. The front plate 74 and the rear plate 76 each include openings 78 and 80 aligned with the flow chamber 56 to allow the steam flow to pass through the front plate 74 and enter the flow chamber 56, and to allow the steam flow to pass through the rear plate 76 when exiting the flow chamber 56. In one embodiment, the front plate 74 and / or rear plate 76 may include a flange 82 that extends laterally beyond the first and second side walls 40 and 42 by a predetermined distance, enabling connection of adjacent cyclone boxes 30 together with a drainage channel 52 formed in the space between the opposing first and second side walls 40 and 42 of the adjacent cyclone boxes 30.

[0030] As best illustrated in Figures 4 and 6, partial dividing walls 84 are positioned vertically between laterally or horizontally adjacent cyclone cans 34 within the box structure 32 of each cyclone box 30 to shield liquid from flowing out of the flow chamber 56 through the slot 64 of the cylindrical wall 54 of one of the cyclone cans 34, preventing liquid from flowing out of the flow chamber 56 of the adjacent cyclone can 34. Deflection hats 86 are positioned between vertically adjacent cyclone cans 34 within the box structure 32 to prevent liquid flowing out of the flow chamber 56 of an upper cyclone can 34 from descending through the slot 64 into the flow chamber 56 of a lower cyclone can 34, or from interfering with liquid flowing out of the slot 64 in the lower cyclone can 34. In one embodiment, each of the deflection hats 86 is inclined downward in two opposite directions toward the first side wall 40 and the second side wall 42 of the box structure 32.

[0031] The sump 88 is positioned below the row of cyclone boxes 30 to receive and collect liquid as it is discharged from the drain channel 52. A drain pipe 90 extending downward from the sump 88 can be used to deliver the liquid collected in the sump 88 to a location near the bottom removal nozzle 28, and then to remove it from the container 10. An inclined shield 92 (Figures 4 and 6) may be placed between the sump 88 and the lower row of cyclone boxes 30 to guide the liquid descending from the open bottom of these cyclone boxes 30 to the liquid descending from the drain channel 52.

[0032] The series of plates 94 can be fixed around the cyclone mist remover 22 between the surrounding cyclone box 30 and the shell 12 of the container 10, thereby preventing vapor from bypassing the cyclone mist remover 22 in the other open space between the surrounding cyclone box 30 and the shell 12.

[0033] The cyclone mist remover 22 may operate to remove liquid from the vapor flow 16 by directing the vapor flow 16 through the flow chamber 56 of the cyclone can 34, and generating centrifugal force by giving the vapor flow 16 a swirling motion as it passes through the swirler 58, thereby causing the liquid in the vapor flow 16 to collide with the inner surface of the cylindrical wall 54 defining the flow chamber 56 and combine with it. The combined liquid on the inner surface of the cylindrical wall 54 is guided through the slot 64 and drained into the volume of the box structure 32 outside the cylindrical can 34. The drained liquid then flows down along the first and second inclined sides 46 and 48 of the roof 44 below, passes through the drainage openings 66 at the bottom of the first and second side walls 40 and 42, and enters the drainage channel 52. The liquid then flows down through the drainage channel 52 and into the sump 88, and then flows through the drainage pipe 90 toward the bottom outlet nozzle 28, where the liquid can be removed from the container 10. Multiple drainage channels 52 can accommodate a larger flow rate of liquid than if only a single central drainage channel were used, and the first side 46 and inclined side 48 of the roof 44 can ensure that the flow of liquid into the drainage channels 52 is less affected by any rocking motion of the container 10 as a result of wind or wave loading.

[0034] <Additional considerations> In this specification, any reference to “one embodiment,” “embodiment,” or “multiple embodiments” means that the features referred to are included in at least one embodiment of the Art. Separate references to “one embodiment,” “embodiment,” or “multiple embodiments” in this specification do not necessarily refer to the same embodiment, and are not mutually exclusive unless otherwise stated and / or readily apparent to those skilled in the art from the description. For example, features, structures, operations, etc., described in one embodiment may, but not necessarily, be included in other embodiments. Therefore, the Art may include various combinations and / or integrations of the embodiments described herein.

[0035] In this specification and in the claims, certain terms are used by reference and are defined as follows: The singular forms “a,” “an,” and “the” include plural references unless the context clearly indicates otherwise.

[0036] The approximating language used herein and throughout the claims may be applied to modify any quantitative expression that may vary within an acceptable range without altering the underlying function. Therefore, values ​​modified by terms such as “about” and “substantially” are not limited to specified exact values. In at least some examples, the approximating language may correspond to the precision of an instrument used to measure a value.

[0037] As used herein, the terms “radial” and “radially” refer to directions and orientations that extend substantially perpendicular to the longitudinal axis. Furthermore, references to directions such as “lateral” and similar terms are used herein solely for convenience and should be understood only in relation to one another.

[0038] Unless otherwise specified herein, terms such as “joined” and “attached” refer to both direct joining, fixing, or attachment, as well as indirect joining, fixing, or attachment via one or more intermediate components or features.

[0039] This application provides a detailed description of different embodiments, but it should be understood that the legal scope of the description is defined by the words and equivalent expressions (language) of the claims. The detailed description should be interpreted as illustrative only and does not describe all possible embodiments, as it would be impractical to describe all possible embodiments. Numerous alternative embodiments can be implemented using either the current art or art developed after the filing date of this patent, and these still fall within the scope of the claims.

[0040] Throughout this specification, multiple instances may implement components, operations, or structures described as a single instance. Structures and functions presented as separate components in an exemplary configuration may be implemented as a combined structure or component. Similarly, structures and functions presented as single components may be implemented as separate components. These and other variations, modifications, additions, and improvements fall within the scope of this specification. The foregoing statements in this paragraph shall apply unless otherwise stated in the description and / or would be readily apparent to those skilled in the art from the description.

[0041] As used herein, the terms “comprises,” “comprising,” “includes,” “including,” “has,” “having,” or any other variations thereof are intended to include non-exclusive inclusion. For example, a process, method, article, or apparatus that includes a list of elements is not necessarily limited to those elements alone, and may include other elements that are not expressly listed or are not specific to such process, method, article, or apparatus.

[0042] While this disclosure has been described with reference to embodiments shown in the accompanying drawings, it should be noted that equivalents may be adopted and substitutions may be made herein without departing from the scope of this disclosure as set forth in the claims.

Claims

1. A cyclone box for removing liquid from a fluidized vapor stream, wherein the cyclone box is A box structure having a front end and a separated rear end, a first separated side wall and a second separated side wall extending in the direction between the front end and the rear end, and a roof having a first inclined side surface and a second inclined side surface, A box structure comprising: the first inclined side surface of the roof is inclined toward the first side wall, allowing liquid to drain toward and into a first drain channel extending downward along the first side wall when the liquid is on the first inclined side surface of the roof; and the second inclined side surface of the roof is inclined toward the second side wall, allowing liquid to drain toward and into a second drain channel extending downward along the second side wall when the liquid is on the second inclined side surface of the roof; At least one cyclone can installed within the aforementioned box structure, A cylindrical wall forming a flow chamber having an inlet end at the front end of the box structure and an outlet end on the opposite side at the rear end of the box structure, A swirl is positioned within the cylindrical wall and imparts a swirling motion to the steam flow as it flows through the flow chamber from the inlet end to the outlet end, generating centrifugal force to combine the liquid in the steam flow on the inner surface of the cylindrical wall. A cyclone box comprising at least one cyclone can, which has one or more outlets that allow the liquid that has coalesced on the inner surface of the cylindrical wall to be drained into the volume of the box structure outside the cylindrical can.

2. The cyclone box according to claim 1, wherein the one or more outlets are formed in the cylindrical wall downstream of the swivel.

3. The cyclone box according to claim 1, wherein the swivel is fixed in place so as not to move.

4. A cyclone box according to claim 1, comprising drainage openings formed in the lower part of the first side wall and the second side wall, wherein when the cyclone box is stacked on the roof of another cyclone box, the liquid in the box structure is drained through the drainage openings in the first side wall to the first drainage channel and through the drainage openings in the second side wall to the second drainage channel.

5. The cyclone box according to claim 1, comprising a recirculation pipe having an inlet end that is open to the volume of the box structure on the outside of the cylindrical can and an outlet end that is open to the flow chamber within the cylindrical wall.

6. The cyclone box according to claim 1, comprising a plurality of the cyclone cans arranged within the box structure in a manner that is spaced apart from each other and extends parallel to each other.

7. The cyclone box according to claim 6, further comprising a dividing wall positioned between horizontally adjacent cyclone cans.

8. The cyclone box according to claim 7, comprising a deflection hat positioned above the cylindrical wall, the deflection hat shielding the one or more outlets from liquid descending from above into the one or more openings.

9. The cyclone box according to claim 1, comprising: a front plate positioned at the front end of the box structure and joined to the first side wall, the second side wall, the roof, and the cylindrical wall at the inlet end of the flow chamber; and a rear plate positioned at the rear end of the box structure and joined to the first side wall, the second side wall, the roof, and the cylindrical wall at the outlet end of the flow chamber, wherein the front plate and the rear plate include openings aligned with the flow chamber.

10. It is a cyclone mist remover, Multiple cyclone boxes are arranged in a vertically stacked row within a separation container, and each cyclone box is, A box structure having a front end and a separated rear end, a first separated side wall and a second separated side wall extending in the direction between the front end and the rear end, and a roof having a first inclined side surface and a second inclined side surface, The first inclined side of the roof is inclined toward the first side wall, allowing liquid to drain toward and into a drainage channel extending downward along the first side wall when it is on the first inclined side of the roof, and the second inclined side of the roof is inclined toward the second side wall, allowing liquid to drain toward and into another of the drainage channels extending downward along the second side wall when it is on the second inclined side of the roof, The drainage channel is a box structure formed by the first side wall and one adjacent opposing second wall of the cyclone box in the same row, and by the second side wall and another adjacent opposing first wall of the cyclone box in the same row. At least one cyclone can installed within the aforementioned box structure, A cylindrical wall forming a flow chamber having an inlet end at the front end of the box structure and an outlet end on the opposite side at the rear end of the box structure, A fixed swivel is positioned within the cylindrical wall and imparts a swirling motion to the steam flow as it flows through the flow chamber from the inlet end to the outlet end, generating centrifugal force to combine the liquid in the steam flow on the inner surface of the cylindrical wall. A cyclone mist remover comprising a cyclone box, which comprises at least one cyclone can, which has one or more outlets that allow the liquid that has coalesced on the inner surface of the cylindrical wall to be drained into the volume of the box structure outside the cylindrical can.

11. The cyclone mist remover according to claim 10, wherein in each cyclone box, the one or more outlets are formed in the cylindrical wall downstream of the swivel.

12. The cyclone mist remover according to claim 10, wherein the first and second side walls of each cyclone box are placed on the roof of the box structure of the cyclone box below, and include drainage openings formed in the lower part of the first and second side walls, allowing liquid in the box structure to be drained into the first drainage channel through the drainage opening in the first side wall and into the second drainage channel through the drainage opening in the second side wall.

13. The cyclone mist remover according to claim 12, wherein each cyclone can includes a recirculation pipe having an inlet end that is open to the volume of the box structure on the outside of the cylindrical can and an outlet end that is open to the flow chamber in the cylindrical wall.

14. The cyclone mist remover according to claim 12, comprising a plurality of the cyclone cans arranged in a manner that is spaced apart from each other and extends parallel to each other within the box structure of each cyclone box.

15. The cyclone mist remover according to claim 14, further comprising a dividing wall positioned between horizontally adjacent cyclone cans within each box structure.

16. The cyclone mist remover according to claim 15, comprising a deflection hat positioned above the cylindrical wall of each cyclone can, the deflection hat shielding the one or more outlets from liquid descending from above into the one or more openings.

17. The cyclone mist remover according to claim 10, wherein in each cyclone box, a front plate is positioned at the front end of the box structure and joined to the first side wall, the second side wall, the roof, and the cylindrical wall at the inlet end of the flow chamber, and a rear plate is positioned at the rear end of the box structure and joined to the first side wall, the second side wall, the roof, and the cylindrical wall at the outlet end of the flow chamber, and the front plate and the rear plate include an opening aligned with the flow chamber.

18. The cyclone mist remover according to claim 10, wherein the drainage channels in each row of the cyclone box are aligned perpendicularly to the drainage channels in adjacent rows of the cyclone box.

19. The cyclone mist remover according to claim 18, further comprising a sump positioned below the row of the cyclone box for receiving the liquid discharged from the drainage channel.

20. A method for separating a liquid from a fluidized vapor stream using the cyclone mist remover described in claim 10, The steps include: flowing the steam flow through the flow chamber of the cyclone can, imparting a swirling motion to the steam flow as it passes through the swirler, causing the liquid in the steam flow to collide with the inner surface of the cylindrical wall and combine on the inner surface; The steps include: guiding the combined liquid from the inner surface of the cylindrical wall through the outlet to drain into the volume of the box structure on the outside of the cylindrical can; A method comprising the step of flowing the drained liquid onto the first inclined slide and the second inclined slide of the roof, and along the first inclined slide and the second inclined slide, into the drainage channel.

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