Sealing device for a rotary adsorption machine

Abstract

A rotary machine includes a rotor configured to rotate, a housing enclosing the rotor, and an elastomeric member attached to the housing. The housing includes a plate extending along the rotor, and the elastomeric member extends from the plate to form a seal with the rotor.

Description

Cross-reference to related applications

[0001] This application claims priority and benefit to U.S. Provisional Patent Application No. 63 / 560,125, filed March 1, 2024, which is hereby incorporated in its entirety by reference for all purposes. Technical Field

[0002] This invention relates to a sealing device between zones in rotary heat exchangers, rotary adsorption machines, etc. Background Technology

[0003] Rotary adsorption machines (RAMs), also known as temperature swing adsorption machines, pressure swing adsorption machines, regenerative rotary separators, etc., are typically deployed for the recovery of specific gases, elements, and / or particulates, such as carbon dioxide. More specifically, RAMs are often deployed for point source carbon capture and / or direct air carbon capture. In any case, RAMs typically comprise adsorbent materials in a rotating rotor, such as activated carbon, metal-organic frameworks (MOFs), or zeolites (e.g., hydrated aluminosilicates of alkali and alkaline earth metals).

[0004] Some RAMs include cylindrical segments configured circumferentially around a rotor and defining multiple zones through which the rotor can rotate. Multiple conduits can define passageways into and out of the multiple zones, and the cylindrical segments can connect the inlet of each of the multiple conduits to the outlet of each of the multiple conduits. These zones can include adsorption zones, desorption zones, and regeneration zones that typically operate at different temperatures and pressures. Two or more sector plate assemblies can define and / or separate adjacent zones. Meanwhile, in the rotor, radial plates extend between the central hub and the outer shell of the cylindrical segments to at least partially define a container in which the adsorbed material is retained.

[0005] Process gases, such as those loaded with carbon dioxide (CO2), enter the rotor, and target gases, elements, and / or particles (e.g., CO2) are adsorbed onto the adsorbent material. The rotor then rotates the adsorbed material into a desorption zone to release the target material from the adsorbent, allowing it to be captured, processed, or used. Desorption is caused by pressure and / or temperature changes (e.g., by passing steam through the rotor or through an electrically heated element). Because these different zones capture and release the target material and operate at different pressures, it is quite important to provide appropriate seals between the zones to limit or eliminate fluid flow / leakage between them. Summary of the Invention

[0006] This invention discloses a device for minimizing or eliminating leakage between adjacent zones of a rotating machine (such as RAM). That is, while this disclosure primarily describes the sealing application of RAM, the sealing devices disclosed herein are equally applicable to minimizing or eliminating leakage between adjacent zones of rotating heat exchangers (such as low-temperature rotating heat exchangers (e.g., those operating below 200°C) or cold-temperature rotating heat exchangers and similar machines).

[0007] According to some embodiments, a rotating machine is provided. The rotating machine includes a rotor having a plurality of plates defining an opening therebetween, and the rotor is configured to rotate to move the plurality of plates. The rotating machine also includes a housing enclosing the rotor; and an elastomeric member attached to a surface of the housing. The elastomeric member extends from the surface of the housing toward the rotor and is bent to form a convex shape with apexes configured to intermittently and sequentially engage the plurality of plates during rotation of the rotor to form a seal with the rotor.

[0008] According to some embodiments, a sealing device for a rotating machine is provided. The sealing device includes a housing segment extending along a rotor of the rotating machine. The rotor includes a plurality of radial plates, and the rotor is configured to rotate the plurality of radial plates. The sealing device includes an elastomeric member having side ends configured to attach to opposing walls of the housing segment to capture the housing segment between the side ends. The elastomeric member extends from the housing segment toward the rotor to intermittently and sequentially engage the plurality of radial plates of the rotor as the rotor rotates the plurality of radial plates.

[0009] According to some embodiments, a rotating machine is provided. The rotating machine includes a rotor having a plurality of radial plates. The rotor is configured to rotate to move the plurality of radial plates. The rotating machine also includes a housing enclosing the rotor and having segments extending along the rotor; and an elastomeric member attached to the plates of the housing and extending from the segments to hermetically engage with the rotor, and forming a gap between the elastomeric member and the segments.

[0010] According to some embodiments, a RAM is provided, comprising an adsorption zone, a desorption zone, and a regeneration zone. A sector plate, having a first surface, is disposed between two adjacent zones. The RAM includes a rotatable rotor having a plurality of spaced-apart radial plates that at least partially define a container within which adsorbed material can be retained. Each of the plurality of radial plates has a second surface configured to intermittently face the first surface of the sector plate as the rotor rotates. A first elastomeric member is attached to the sector plate, which extends over a portion or all of the first surface. In the context of this disclosure, an elastomeric member is a member capable of bending or deforming when a load is applied thereto and capable of fully or substantially restoring its original shape when the load is removed. In this context, the term "elastomeric" encompasses a variety of options for the construction material.

[0011] The first elastomeric member has an inner surface and an outer surface opposite to the inner surface, the inner surface facing the first surface of the sector plate. The first elastomeric member is constructed such that a gap / cavity exists between the inner surface of the first elastomeric member and the first surface of the sector plate. The second surfaces of the plurality of radial plates are configured to intermittently and sequentially contact or press against the outer surface of the first elastomeric member to form a seal between the adsorption and desorption zones, or between the adsorption and regeneration zones, or between the desorption and regeneration zones (as applicable). According to some embodiments, the outer surface of the first elastomeric member is bent to form a convex shape having a vertex facing away from the first surface of the sector plate.

[0012] According to some embodiments, the sector plate, the first elastomer member, and each of the plurality of radial plates are arranged such that the second surfaces of the plurality of radial plates sequentially contact or press against the outer surface of the first elastomer member only in the region of the convex shape.

[0013] It should be emphasized that the radial plate can directly contact the elastomeric material. Alternatively, one or more elements / fixing devices can be attached to the top and bottom of the radial plate, the attachment itself being specified to contact the first elastomeric material. According to some embodiments, the one or more elements / fixing devices can be radial seals attached to the top and bottom of the radial plate, the radial seals intermittently contacting the first elastomeric material as the radial plate passes under or over the sector plate. The radial seals can include any structure capable of contacting the first elastomeric member of the sector plate to achieve a seal between adjacent areas of the RAM. According to some embodiments, the radial seals include another elastomeric member configured to engage with the first elastomeric member of the sector plate. The radial seals can be made of other materials (e.g., other plastic materials and / or metal materials).

[0014] According to some embodiments, the convex shape includes a curved region with a constant radius of curvature, and the second surface of the radial plate contacts or presses against the outer surface of the first elastomer member only in the region with a constant radius of curvature. This feature makes the bending of the first elastomer member smoother as the second surface of the radial plate passes along the outer surface of the first elastomer member. This advantageously contributes to extending the service life of the first elastomer member.

[0015] According to some embodiments, a second elastomeric member is located in the gap / cavity between the inner surface of the first elastomeric member and the first surface of the sector plate. This feature provides redundancy, such that in the event of accidental failure of the first elastomeric member (e.g., when the first elastomeric member breaks / is severed), the second surface of the radial plate can subsequently abut against at least a portion of the second elastomeric member to maintain a seal or otherwise minimize fluid leakage across the sector plate. Additionally, the second elastomeric member serves to support the first elastomeric member and can be used to adjust / determine the amount by which the first elastomeric member bends toward the sector plate when the second surface of the radial plate presses against the outer surface of the first elastomeric member. According to some embodiments, the second elastomeric member is softer than the first elastomeric member (i.e., has a lower Young's modulus compared to the first elastomeric member).

[0016] According to some embodiments, the second elastomer member is a single structure made of a single material. However, according to other embodiments, the sector plate has a width, and a plurality of elongated elastomer members are disposed in the gap / cavity between the inner surface of the first elastomer member and the first surface of the sector plate, the plurality of elongated elastomer members being arranged side-by-side along at least a portion of the width of the first surface. According to some embodiments, one or more or all of the elongated elastomer members are in the form of solid or hollow cylinders. The diameter of the cylinders may be the same or may vary. According to some embodiments, one or more or all of the elongated elastomer members are made of a material softer than the material used to make the first elastomer member (i.e., having a lower Young's modulus than the material used to make the first elastomer member).

[0017] According to some embodiments, the second surface of the plurality of radial plates is curved to reduce the risk of the first elastomeric member being punctured by the radial plates. According to some embodiments, the second surface of the plurality of radial plates is coated with a lubricating material that reduces friction between the radial plates and the outer surface of the first elastomeric member. This helps to provide smoother bending and shape recovery of the first elastomeric member as the second surface of the radial plates sequentially traverses the outer surface of the first elastomeric member. This can thereby extend the service life of the first elastomeric member.

[0018] These and other advantages and features will become clear from the accompanying drawings and detailed description. Attached Figure Description

[0019] To complete the description and to provide a better understanding of the invention, a set of accompanying drawings is provided. The drawings form part of the overall description and illustrate embodiments of the invention, which should not be construed as limiting the scope of the invention, but are merely examples of how the invention can be practiced. The drawings include the following figures:

[0020] Figure 1 This is a schematic diagram of a combined cycle power plant with a rotating adsorption machine (RAM) formed according to an example implementation scheme.

[0021] Figure 2 It is a top front perspective view of the RAM formed according to the example implementation scheme.

[0022] Figure 3 yes Figure 2 A partial cross-sectional stereoscopic view of a portion of the RAM.

[0023] Figure 4A It is based on an implementation plan. Figure 2 A cross-sectional view of the RAM sector plate assembly.

[0024] Figure 4B yes Figure 4A A cross-sectional view of the elastomeric component of the sector plate assembly shown.

[0025] Figure 4C This is a cross-sectional view of a sealing device, which includes radial plate contacts or presses. Figure 4A The outer surface of the elastomeric component of the sector plate assembly is used to achieve a seal between the sector plate and the radial plate.

[0026] Figure 5A This is a cross-sectional view of a sector plate assembly according to another embodiment.

[0027] Figure 5B This is a cross-sectional view of a sealing device, which includes... Figure 5A A sector plate assembly, wherein an elastomer member is disposed within a gap / cavity existing between the inner surface of the elastomer member and the surface of the sector plate.

[0028] Figure 6 This is a cross-sectional view of a sector plate assembly according to another embodiment.

[0029] Figure 7A This is a cross-sectional view of another sealing device, which includes a plurality of elongated elastomeric members disposed within a gap / cavity existing between the inner surface of an elastomeric member and the surface of a sector plate.

[0030] Figure 7B It is based on an implementation plan. Figure 7A A three-dimensional view of the slender elastomeric component of the sealing device.

[0031] Figure 7C It is based on another implementation plan. Figure 7A A three-dimensional view of the slender elastomeric component of the sealing device.

[0032] Figure 8A The illustration shows a radial plate having an end surface configured to contact or press against the outer surface of an elastomeric member, the end surface being circular or otherwise curved.

[0033] Figure 8B It shows Figure 8A A radial plate, wherein the end surface includes a lubricating coating.

[0034] Figure 9A The illustration shows a radial plate having an end surface configured to contact or press against the outer surface of an elastomeric member, the end surface being chamfered.

[0035] Figure 9B It shows Figure 9AA radial plate, wherein the end surface includes a lubricating coating.

[0036] Figure 10A The illustration shows a radial plate having an end surface configured to contact or press against the outer surface of an elastomeric member, the end surface being inclined on the leading side of the radial plate.

[0037] Figure 10B It shows Figure 10A A radial plate, wherein the end surface includes a lubricating coating.

[0038] Figure 11 yes Figure 2 A detailed view of a portion of the RAM.

[0039] Figure 12 This is a top view of a sealing device according to one embodiment, the sealing device including a radial plate contacting or pressing against the outer surface of an elastomeric member of an axial plate assembly to achieve... Figure 2 The seal between the axial and radial plates of the RAM. Detailed Implementation

[0040] Typically, this application relates to rotary adsorption machines (RAMs). Sealing devices are disclosed herein for reducing or eliminating fluid (gas and / or liquid) leakage between zones of a RAM, thereby improving its effectiveness. Although this disclosure is directed to RAMs, the sealing devices disclosed herein are equally applicable to minimizing or eliminating leakage between adjacent zones of rotary heat exchangers and similar machines (such as cryogenic mine air heaters).

[0041] Figure 1 An example power plant 10 that can be incorporated into RAM 26 formed according to this application is illustrated. However, for clarity, Figure 1 The power plant 10 described herein is merely an example, and in other embodiments, RAM 26 can be located at any desired location, such as for carbon capture. For example, power plant 10 generally depicts a combined cycle gas turbine (CCGT) power plant, but RAM 26 can also be located / included in a conventional coal-fired power plant or any other flue gas system (e.g., for point source capture). Indeed, it is conceivable that the RAM 26 proposed herein can be configured to capture carbon dioxide from ambient air. That is, the RAM 26 proposed herein can be located where the CO2-loaded gas entering RAM 26 is ambient air (rather than process effluent).

[0042] Nevertheless, in Figure 1In this power plant 10, a gas turbine 16, a waste heat recovery steam generator (HRSG) 14, and a generator 18 connected to a steam turbine 23. Turbines 16 and 23 are combined to drive the generator 18 to generate electricity. The steam turbine 23 is connected to a condenser 19 having an inlet 20 and an outlet 22. The power plant 10 also includes fans 24a and 24b, which can be used to move air through the system. Meanwhile, a heat exchanger 12 can be positioned adjacent to the outlet of the HRSG 14. Although not shown, a power plant utilizing RAM 26 may also include another heat exchanger to heat the air entering the boiler. For example, such a heat exchanger could utilize the heat from the combustion gases discharged from the boiler to heat the air entering the boiler (while simultaneously cooling the gases discharged from the boiler).

[0043] like Figure 1 As shown, and in conjunction with more detailed illustrations Figure 1 RAM 26 Figure 2 The cooled exhaust gas enters RAM 26 as a first stream F1 and flows through a first conduit 110 into RAM 26. However, it should be reiterated that exhaust gas is only one example of a gas that can enter RAM 26 as a first stream F1. Other examples include a stream of ambient air and / or atmosphere, or a combination of ambient air / atmosphere and exhaust gas. In any case, when the first stream F1 encounters the rotor 34 included in RAM 26, the adsorption element in rotor 34 can adsorb a specific portion of the first stream F1 (e.g., carbon dioxide). The adsorption element in rotor 34 can then carry the adsorbed portion of the first stream F1 through partial rotation. Simultaneously, the portion of the first stream F1 not captured by the adsorption element can leave RAM 26 as a process stream F1', for example (returning) to the atmosphere, for example via heat exchanger 12, in which the process stream can be used to cool the exhaust gas. Alternatively or additionally, process stream F1' can be fed into a conduit that directs process stream F1' to a downstream processing operation requiring clean gas / air. The region of rotor 34 aligned with the first flow F1 can be generally referred to herein as the first region Z1 of RAM 26 (i.e., adsorption region Z1).

[0044] As rotor 34 rotates, it removes the adsorbed portion (e.g., carbon dioxide) of the first stream F1 from adsorption zone Z1 (e.g., by rotating the adsorption element that has adsorbed the portion of the first stream F1) and into the second zone Z2 of RAM 26 (i.e., desorption zone Z2). In desorption zone Z2, the second stream F2 is guided into RAM 26 so that the adsorption element of rotor 34 carrying the adsorbed portion of the first stream F1 desorbs the adsorbed portion of the first stream F1. For example, steam can be guided into RAM 26 as the second stream F2 to create a temperature change, thereby releasing carbon dioxide from the adsorption element for carbon capture. To illustrate this example, the steam in the second stream F2 originates from... Figure 1 The steam turbine operation (e.g., from condenser 19) is described. In any case, the adsorbed portion of the first stream F1 is released into the second stream F2 to produce a stream F2' exiting RAM 26. For example, stream F2' may carry carbon dioxide and may be directed to a storage tank, condenser, and / or stripping tower, for example, to prevent carbon dioxide from entering or re-entering the atmosphere (e.g., to remove carbon dioxide from the atmosphere).

[0045] After the adsorption element desorbs the adsorbed portion (e.g., carbon dioxide) from the first stream F1, the adsorption element can move to the third zone Z3 (i.e., the regeneration zone Z3). In the third zone Z3, conditioned air (e.g., driven by fan 24a) can flow through RAM 26 to "regenerate" the adsorption element, entering as stream F3 and exiting as stream F3' (in some cases, it can combine with process stream F1' upon exiting RAM 26, such as...). Figure 1 (As shown in the diagram). This conditioning air prepares the adsorption element for re-entry into adsorption zone Z1 (e.g., by cooling the adsorption element), allowing the adsorption element to continue circulating through the three zones of RAM 26. That is, as a specific adsorption element of rotor 34 continues to rotate through a full 360° rotation within RAM 26, it will adsorb a specific portion of the first flow F1, decomposing and regenerating the flow. Thus, the cylindrical rotor 34, filled with adsorption elements, will continuously capture components / portions of the first gas flow F1 entering RAM 26.

[0046] However, for clarity, the RAM 26 illustrated in the accompanying drawings of this application is merely an example, and other embodiments may include any number of variations. For example, the RAM 26 formed according to this application may include any number of zones, such as those incorporated into isolation zones, multi-stage or regeneration, desorption and / or adsorption, or for any other reason. Additionally or alternatively, the various streams entering and leaving the RAM 26 may originate from any desired source or flow to any desired location, including the source of said stream or another stream (e.g., to recirculate the fluid stream). As yet another example, the composition of the various streams may vary, such as using a fluid stream other than vapor for desorption.

[0047] Figure 3 A more detailed illustration is provided by providing a cross-sectional view of a portion of RAM 26. Figure 2 RAM 26. Figure 2 and 3 Let's discuss and describe RAM 26 together. At a high level, RAM 26 includes a rotor 34 that can rotate within a housing 107. The housing 107 is specifically designed to enclose and seal portions of the rotor 34 against said portions to help define how and where fluids (e.g., gases) will enter, exit, or move with the rotor 34. As described above, the RAM 26 (including housing 107 and rotor 34) proposed herein can be particularly suitable for large-scale (e.g., industrial) operations. Thus, in at least some cases, the diameter of the rotor 34 can be equal to or greater than 20 meters, such as 24 meters, and the housing 107 can be sized accordingly.

[0048] As in Figure 3 As can be seen, rotor 34 includes a central hub 36 and a housing 35. Radial plates 37 extend between and offset from each other between the central hub 36 and the housing 35 to at least partially define a container or opening 40 therebetween. Container 40 is configured to receive and retain adsorbent material. In at least some embodiments, rotor 34 also includes circumferential plates to subdivide container 40. In either case, adsorbent material can be stored and / or housed within container 40. For example, adsorbent material can be “feeded” into container 40 to fill rotor 34 with adsorbent material. In at least some cases, the adsorbent material can be formed from any adsorbent material now known or developed hereafter suitable for adsorbing carbon dioxide, such as activated carbon, MOF, zeolite, or combinations thereof.

[0049] As described above, the rotor 34 is configured to rotate continuously about a central hub 36 to move the radially aligned container 40 through a circulation of zones (e.g., through zones Z1, Z2, and Z3). During this rotation, the housing 107 is generally designed to circumferentially retain the gas within the rotor 34 and to form channels along which fluid can axially enter or exit the rotor 34. Circumferential retention is achieved by positioning a cylindrical segment 108 of the housing 107 against the outer shell 35 of the rotor 34. Additionally, the sector plates / segments located between the zones of the RAM are equipped with features that promote the formation of seals between the zones to minimize or eliminate fluid flow between them. Figure 2 An example sector plate / segment 29 is shown positioned between the adsorption zone (Z1) and the regeneration zone (Z3) and above the radial plate 37. In the depicted embodiment, the first sector plate 29 separates the adsorption zone Z1 (generally aligned with the first conduit 110) from at least the regeneration zone Z3.

[0050] The examples disclosed below relate to a sealing device between a first sector plate 29 and a radial plate 37. Furthermore, the examples relate to the end surface 37a of the radial plate 37 (e.g., the outer surface, the top surface, see example...). Figure 4C A sealing device is provided between the first sector plate 29 and a first surface 29a of the first sector plate 29 (e.g., inner surface, bottom surface, lower surface, see, for example, FIG. 4c). A second sector plate (not shown in the figures), similar to and horizontally aligned with the first sector plate 29, is typically positioned below the radial plate 37. The sealing device disclosed herein is also applicable to creating a seal between the bottom end of the radial plate 37 and the top surface of the second sector plate. Similarly, the sealing device disclosed herein can also be applied to surfaces extending longitudinally between the bottom sector plate and the top sector plate (e.g., the vertical extension of the sector assembly). Reference Figure 2 and 3 The aforementioned first and second sector plates can be attached or connected to the top frame assembly 300 and bottom frame assembly 400 of RAM 26, respectively. Although in Figure 2 As not shown, similar sector-shaped plate groups can be arranged between the adsorption zone (Z1) and the desorption zone (Z2), and between the desorption zone (Z2) and the regeneration zone (Z3).

[0051] Continue to refer to Figure 2 and 3Generally, housing 107 extends from front end 101 to rear end 102, from first side 103 to second side 104, and from bottom 106 to top 105. In the depicted embodiment, different fluid flows enter or exit RAM 26 in a generally vertical or longitudinal manner (i.e., from bottom 106 to top 105, or vice versa). Thus, housing 107: (a) includes a cylindrical section 108 circumferentially surrounding rotor 34; and (b) defines multiple conduits at top 105 and bottom 106 of RAM 26. Specifically, in the depicted embodiment, RAM 26 includes three conduits generally aligned with zones Z1, Z2, and Z3: (1) a first conduit 110 generally aligned with adsorption zone Z1; (2) a second conduit 130 generally aligned with desorption zone Z2; and (3) a third conduit 150 generally aligned with regeneration zone Z3. However, other embodiments may include any number of conduits and do not necessarily need to include the same number of conduits and zones.

[0052] In the depicted embodiment, a first conduit 110 extends from an inlet positioned adjacent to the top 105 of the housing 107 to an outlet positioned adjacent to the bottom 106 of the housing 107. Simultaneously, a second conduit 130 and a third conduit 150 extend from inlets positioned adjacent to the bottom 106 of the housing 107 to outlets positioned adjacent to the top 105 of the housing 107, respectively. Thus, a first flow F1 entering the first conduit 110 flows generally in a first longitudinal direction (e.g., downward), while flows F2 and F3 entering conduits 130 and 150 flow generally in the opposite longitudinal direction (e.g., upward). As a specific example, the first flow F1 may include ambient air and / or process effluent flowing downward into the rotor 34 through the inlet of the first conduit 110, the second flow F2 may include steam flowing upward into the rotor 34 through the inlet of the second conduit 130, and the third flow F3 may include conditioning air flowing upward into the rotor 34 through the inlet of the third conduit 150.

[0053] In the following example, a sector plate 29 located between the adsorption region (Z1) and the regeneration region (Z3) of the RAM is referenced. It should be understood that the invention is equally applicable to other locations of the RAM, including sector plates located between other regions of the RAM 26 and / or locations that prevent leakage between adjacent regions and / or circumferential leakage around the rotor and / or the substrate.

[0054] Figure 4AThis is a cross-sectional view of the sector plate assembly 162, wherein a sector plate 29 is attached to a first elastomeric member 160, the first elastomeric member extending across a first surface 29a of the sector plate. In the context of this disclosure, the elastomeric member is capable of bending or deforming when a load is applied thereto, and is capable of fully or substantially restoring its original shape when the load is removed. In this context, the term "elastomeric" encompasses a variety of options for the construction material.

[0055] The first elastomeric member 160 has a first side end 111 and an opposing second side end 112, which are respectively attached to or otherwise connected to a first sidewall 29b and a second sidewall 29c of the sector plate 29 to capture the sector plate 29 between the side ends 111 and 112. In fact, although not shown, in some cases, the first elastomeric member 160 can completely capture the sector plate 29, for example by surrounding a lateral side of the sector plate 29, the boundary of which extends perpendicularly to the direction spanning the side ends 111 and 112. However, in other cases, the lateral side of the sector plate 29 need not be captured and / or completely covered if desired. In any case, in Figure 4A In the illustrated embodiment, the attachment of the first elastomeric member 160 to the sector plate 29 is achieved using screws or bolts 170. Other attachment methods, such as adhesives, can also be used. Similar attachment techniques can also be used on the lateral sides of the sector plate 29 if desired. Figure 4A In one example, the first elastomeric member 160 extends over the entire first surface 29a of the sector plate 29. However, according to other embodiments, the first elastomeric member 160 may extend only over a portion of the first surface 29a, preferably the central portion of the first surface 29a.

[0056] The first elastomeric member 160 has an outer surface 160a and an inner surface 160b opposite to the outer surface 160a, the inner surface 160b facing the first surface 29a of the sector plate 29. The first elastomeric member 160 is constructed such that a gap / cavity 180 exists between the inner surface 160b of the first elastomeric member and the first surface 29a of the sector plate 29. According to some embodiments, the outer surface 160a of the first elastomeric member 160 is bent to form a convex shape, the convex shape having a vertex 115 pointing in a direction (D1) away from the first surface 29a of the sector plate 29.

[0057] Figure 4B yes Figure 4AThe diagram shows a cross-sectional view of the first elastomeric member 160. The first elastomeric member 160 has a U-shaped configuration, with side ends 111, 112 extending away from the apex 115 (e.g., opposite to direction D1), thereby forming a gap 180 when the first elastomeric member 160 is attached to the sector plate 29. The side ends 111, 112 may have orifices for receiving screws 170 for attaching the first elastomeric member 160 to the sector plate 29.

[0058] Figure 4C This is a cross-sectional view of a sealing device 100 according to one embodiment, wherein Figure 4A The sector plate 29 is aligned with one of the radial plates 37 of the rotor (e.g., rotor 34) of the RAM (e.g., RAM 26). That is, the end surface 37a of the radial plate 37 (also referred to herein as the "second surface") is positioned to face the first surface 29a of the sector plate 29. Figure 4C In this example, the radial plate 37 has a first side 37b and an opposing second side 37c located in zones Z1 and Z3 of the RAM, respectively. For discussion purposes only, it is assumed that zone Z1 operates at a higher pressure than zone Z3. As previously discussed, the radial plate 37 is one of a plurality of spaced radial plates that rotate within the housing of the RAM. The arrow “R” indicates the direction of rotation.

[0059] The sealing device 100 includes a first elastomeric member 160 attached to the sector plate 29, wherein the second surface 37a of the radial plate 37 contacts or presses against the outer surface 160a of the first elastomeric member 160 to achieve a seal between the first elastomeric member 160 and the second surface 37a of the radial plate 37. Therefore, when the radial plate 37 is aligned with the first elastomeric member 160 and the sector plate 29 (e.g., when the radial plate 37 is positioned between zones Z1 and Z3), the radial plate 37 seals against the first elastomeric member 160. Specifically, the elastomeric material of the first elastomeric member 160 pushes the first elastomeric member 160 away from the sector plate 29, thereby positioning the first elastomeric member 160 (e.g., apex 115) in preparation for engagement with the radial plate 37, which has moved to align with the sector plate 29.

[0060] However, the contact between the radial plate 37 and the first elastomeric member 160 can apply a force to the first elastomeric member 160, causing it to bend towards the sector plate 29, thereby allowing the radial plate 37 to traverse the outer surface 160a and avoid impeding the rotation of the rotor. Rotation of the RAM's rotor causes each of the radial plates 37 to move between zones Z1 and Z3, and thus to align with and to move away from the first elastomeric member 160. Therefore, the second surfaces 37a of the plurality of radial plates 37 are arranged to intermittently and sequentially contact or press against the outer surface 160a of the first elastomeric member 160. The first elastomeric member 160 repeatedly bends away from the sector plate 29 to form a seal that prevents or at least minimizes fluid flow between zones Z1 and Z3 (or between other zones as discussed above), and bends towards the sector plate 29 to facilitate rotor rotation.

[0061] According to some embodiments, the sector plate 29, the first elastomer member 160, and each of the plurality of radial plates 37 are arranged such that the second surfaces 37a of the plurality of radial plates 37 intermittently and sequentially contact or press against the outer surface 160a of the first elastomer member 160 only in the region of the curved convex shape (e.g., at the apex 115). According to some embodiments, the convex shape includes a curved region 120 with a constant radius of curvature (see...). Figure 4A Furthermore, the second surface 37a of the radial plate 37 contacts the outer surface 160a of the first elastomer member 160 only in a region having a constant radius of curvature. This subsequent feature results in smoother bending and shape recovery of the first elastomer member as the second surface 37a of the radial plate 37 passes along the outer surface 160a of the first elastomer member 160. This advantageously extends the service life of the first elastomer member 160.

[0062] Figure 5A This is a cross-sectional view of a sector plate assembly 201 according to another embodiment. The sector plate assembly 201 and... Figure 4A The sector plate assembly 201 shown is substantially the same and includes a first elastomeric member 160 attached to the sector plate 29. Figure 5A The sector plate assembly 201 and Figure 4AThe difference between the sector plate assembly 201 and the previous one is that the sector plate assembly 201 includes a second elastomeric member 210 located in the gap between the inner surface 160b of the first elastomeric member 160 and the first surface 29a of the sector plate 29 (i.e., the gap 180 of the sector plate assembly 162). For example, the first surface 210a (e.g., the bottom surface) of the second elastomeric member 210 may contact the inner surface 160b of the first elastomeric member 160, and the second surface 210b (e.g., the top surface) of the second elastomeric member 210 may contact the first surface 29a of the sector plate 29. This feature provides redundancy so that in the event of accidental failure of the first elastomeric member 160 (e.g., its breakage / cutting), the second elastomeric member 210 can be acted radially to maintain a seal between adjacent areas of the RAM, or at least minimize fluid leakage between adjacent areas.

[0063] In various embodiments, the elastomeric member 210 can be attached to the sector plate 29 individually or in combination with the first elastomeric member 160 in any desired manner. Furthermore, although not shown, in some cases, the second elastomeric member 210 can completely capture the sector plate 29, for example by surrounding a lateral side of the sector plate 29, the boundary direction of which is perpendicular to the direction spanning the sector plate 29. Figure 5A The lateral end shown extends in the direction shown. However, in other cases, if necessary, the lateral side of the sector plate 29 need not be captured and / or need not be completely covered by the elastomeric member 210.

[0064] Figure 5B The diagram illustrates the sealing device 200, in which... Figure 5A The sector plate assembly 201 is acted upon by the end surface 37a of the radial plate 37 to form a seal, for example, between regions Z1 and Z3 of the RAM. If the first elastomeric member 160 fails, this failure can expose the first surface 210a of the second elastomeric member 210 to the radial plate 37. Therefore, the end surface 37a of the radial plate 37 can contact the first surface 210a.

[0065] The second elastomer member 210 may additionally support the first elastomer member 160 and may be configured in various ways to influence the amount of bending of the first elastomer member 160 when the second surface 37a of the radial plate 37 presses against the outer surface 160a of the first elastomer member 160. The second elastomer member 210 also provides support for the first elastomer member 160 to withstand cyclic loading of the radial plate 37. For example, the second elastomer member 210 may apply a force that pushes the first elastomer member 160 against the radial plate 37, and / or the second elastomer member 210 may resist a force that pushes the first elastomer member 160 against the sector plate 29. According to some embodiments, the second elastomer member 210 is softer than the first elastomer member 160 (i.e., has a lower Young's modulus compared to the first elastomer member 160).

[0066] exist Figure 5A In the example of -B, the second elastomeric member 210 occupies all or substantially all of the gap / cavity existing between the inner surface 160b of the first elastomeric member 160 and the first surface 29a of the sector plate 29. According to other embodiments, a cross-sectional view of the sector plate assembly 302 is illustrated. Figure 6 As shown, the second elastomeric member 310 may occupy less than all of the cavity / gap between the inner surface 160b of the first elastomeric member 160 and the first surface 29a of the sector plate 29. According to one such embodiment, as... Figure 6 As shown, the first surface 310a (e.g., bottom surface) of the second elastomeric member 310 is adjacent to the inner surface 160b of the first elastomeric member 160, and the second surface 310b (e.g., top surface) of the second elastomeric member 310 faces the first surface 29a of the sector plate 29, wherein there is a gap / cavity 181 between the second surface 310b and the first surface 29a.

[0067] According to some embodiments, the second elastomeric members 210 and 310 are each a single structure made of a single piece of material, such that a single integral assembly is positioned in the gap between the inner surface 160b of the first elastomeric member 160 and the first surface 29a of the sector plate 29. However, according to other embodiments, multiple separate assemblies are positioned in the gap between the inner surface 160b of the first elastomeric member 160 and the first surface 29a of the sector plate 29.

[0068] Figure 7AThe illustration shows a cross-sectional view of a sector plate assembly 402 having a plurality of elongated elastomer members 410 arranged side-by-side in the gap between the inner surface 160b of the first elastomer member 160 and the first surface 29a of the sector plate 29, such as being fixed to the first elastomer member 160 and / or the sector plate 29. In different embodiments, one or more of the elastomer members 410 may be fixed individually or in combination with each other in any desired manner to the sector plate 29 and / or the first elastomer member 160. Furthermore, although not shown, in some cases, the second elastomer member 210 may completely capture the lateral dimension of the sector plate 29, for example by surrounding the lateral side of the sector plate 29, the boundary direction of which is perpendicular to the span. Figure 7A The lateral end shown extends in the direction shown. However, in other cases, if necessary, the lateral side of the sector plate 29 need not be captured and / or need not be completely covered by the elastomeric member 410.

[0069] According to some embodiments, one or more or all of the elongated elastomer members 410 are shaped as follows: Figure 7B The solid cylinder shown, or in the form of... Figure 7C The hollow cylinder shown is an example. According to other embodiments, one or more of the elongated elastomeric components may take on other shapes, such as rectangular prisms, triangular prisms, elliptical prisms, etc.

[0070] like Figure 7A As shown, according to some embodiments, the diameter of the elongated elastomer member 410 can vary along the width "W" of the sector plate 29. Figure 7AIn some embodiments, each elongated elastomer member 410 has a first surface 410a that continuously contacts the inner surface 160b of the first elastomer member 160, and a second surface 410b that continuously contacts the first surface 29a of the sector plate 29. According to some embodiments, the elongated elastomer members 410 are configured and arranged such that the side surfaces 410c of adjacent elongated elastomer members 410 are abutted against each other, and in some embodiments are fixed to each other. Such a device prevents fluid leakage across the sector plate 29 in the event that the first elastomer member 160 is damaged (e.g., torn, cracked, worn through, etc.). In some embodiments, if the first elastomer member 160 fails, this failure exposes at least one of the elongated elastomer members 410 (which remains fixed to the sector plate 29) to the radial plate 37, and the second surface 37a of the radial plate 37 can contact one of the elongated elastomer members 410 (e.g., the first surface 410a of one of the elongated elastomer members 410). According to some embodiments, one or all of the elongated elastomer members 410 are made of a material softer than the material used to make the first elastomer member 160 (i.e., having a lower Young's modulus than the material used to make the first elastomer member).

[0071] exist Figure 8A and 8B In some embodiments, the ends of the radial plate 37 are rounded or otherwise curved. This profile of the radial plate 37 reduces the risk of the radial plate 37 puncturing the elastomeric member as it passes along it, or of the elastomeric member being punctured by the radial plate 37. In other words, the curved radial plate 37 avoids applying excessive force to the elastomeric member, which reduces the likelihood of the radial plate 37 penetrating the elastomeric member and further extends the service life of the elastomeric member. Figure 9A and 9B In one embodiment, the end of the radial plate 37 includes opposing rising chamfered portions 38a and falling chamfered portions 38b located on a first side 37b and a second side 37c of the radial plate 37, respectively, which can further help avoid puncturing the elastomeric member. However, as Figure 10A and 10B As shown, according to some embodiments, only the second side 37b of the radial plate 37 (e.g., the leading side that first contacts the elastomeric member during rotor rotation) includes a chamfered portion. In these embodiments, the chamfered portion can facilitate an unobstructed transition over the elastomeric member, allowing the radial plate 37 to traverse the elastomeric member with less resistance.

[0072] To reduce the frictional force between the radial plate and the contact surface of the first elastomeric member 160, the second surface 37a of the radial plate 37 may include a lubricating coating 500, such as... Figure 8B , 9BAs shown in 10B. The use of a lubricating coating 500 promotes the movement of the radial plate 37 along the elastomeric member, thereby reducing wear on the outer surface of the elastomeric member (e.g., wear caused in other ways by the abrasion of the radial plate 37 against the elastomeric member), and thus helps to extend the service life of the elastomeric member. The lubricating coating may include, for example, polytetrafluoroethylene (PTFE).

[0073] As described above, according to some embodiments, separate radial sealing elements / fixtures may be attached to the top and bottom of the radial plate 37. These sealing elements / fixtures may be chamfered, lubricated, and / or constructed of alternative materials to facilitate sliding across the elastomeric member and minimize wear. In the context of this application, references herein to the contact between the radial plate 37 and the elastomeric member (e.g., the first elastomeric member 160) include any element / fixture attached to the radial plate 37 in contact with the elastomeric member.

[0074] The sealing techniques disclosed herein can also be implemented in other sealing plates of the RAM to provide a desired seal against the rotor (e.g., between zones). Examples disclosed below relate to sealing devices located between axial plates / segments and radial plates / segments. Figure 11 The RAM 26 is illustrated in more detail with a detailed view of a portion thereof. The housing 107 includes an axial plate / segment 550 radially positioned outside the rotor 34 (e.g., outside the circumference of the rotor 34, between the top and bottom sector plates, and / or along the housing 35 of the rotor 34 (e.g., the circumference of the housing 35)). A seal is desired between the axial plate 550 and the rotor 34 to block fluid flow (e.g., circumferential fluid flow) between the axial plate 550 and the rotor 34, thereby minimizing or eliminating, for example, fluid flow between the zones of the RAM 26 (e.g., zones Z1 and Z3).

[0075] To allow the rotor 34 to rotate within its housing, a gap typically exists between the surface of the axial plate 550 (e.g., the inner surface) and the surface of the rotor 34 (e.g., the outer surface). To partially close this gap, the radial plate 37 of the rotor 34 may extend radially beyond the housing 35 of the rotor 34, and / or the housing 35 may include radially extending flanges that may be aligned with the radial plate 37. Regardless of the method used, gaps may still form between the axial plate 550 and the radial plate 37, and between the axial plate 550 and the housing 35, as the rotor 34 rotates. Therefore, an elastomeric member is attached to the axial plate 550 to provide a seal against the rotor 34 and to block fluid flow between the axial plate 550 and the rotor 34.

[0076] Figure 12This is a top view of RAM 26, providing further details about the sealing device 570 that blocks fluid flow between the axial plate 550 and the rotor 34. Specifically, the axial plate assembly 572 includes an elastomeric member 574 attached to the axial plate 550 and extending from the inner surface 576 of the elastomeric member 574 toward the rotor 34. Rotation of the rotor 34 (e.g., intermittent and sequential rotation) causes the radial plate 37 to move to contact or press against the outer surface 574a of the elastomeric member 574, thereby forming a seal that prevents or at least minimizes fluid flow between the axial plate 550 and the rotor 34.

[0077] Axial plate assembly 572 may have features similar to those of any of the sector plate assemblies 162, 201, 302, and 402 discussed above. As an example, elastomeric member 574 may have a U-shaped configuration with its side ends 578 attached to the axial plate 550 (e.g., by screws) to capture the axial plate 550 between the side ends 578. As another example, elastomeric member 574 may be bent to form a convex shape with a vertex 580 configured to contact the radial plate 37. As yet another example, a gap 582 may be formed between the elastomeric member 574 and the surface 550a of the axial plate 550, and one or more additional elastomeric members (e.g., integral elastomeric members, elongated elastomeric members) may be disposed in the gap 582 to provide a continuous sealing advantage in the event of failure of elastomeric member 574.

[0078] Additionally, although the illustrated elastomeric member 574 extends across the entire surface 550a (e.g., the entire width of the axial plate 550), according to other embodiments, the elastomeric member 574 may extend only over a portion (e.g., the central portion) of the surface 550a. Similarly, the elastomeric member 574 may extend over any portion of the height of the axial plate 550. Furthermore, in other or alternative embodiments, the elastomeric member 574 is configured to contact and seal against the housing 35 of the rotor 34. In any case, the axial plate assembly 572 is arranged to block fluid flow along the circumference of the rotor 34 between the rotor 34 and the axial plate 550.

[0079] In general, the RAM embodiments provided herein achieve at least the advantages described herein. However, for clarity, although this application uses specific embodiments to describe RAM and its advantages, it is not intended to be limited to the details shown. Rather, it will be clear that various modifications and structural changes can be made without departing from the scope of the invention and within the scope and range of equivalents of the claims. Furthermore, various features from one embodiment of the described embodiments can be incorporated into another embodiment of the described embodiments.

[0080] It should also be understood that the sector plate or portions thereof described herein may be made of any suitable material or combination of materials, such as metals or synthetic materials, including but not limited to plastics, rubber, derivatives thereof, and combinations thereof. It is also intended that this invention cover modifications and variations of the invention falling within the scope of the appended claims and their equivalents. For example, it should be understood that terms such as “top,” “bottom,” “front,” “side,” “length,” and “width,” as used herein, describe reference points only and do not limit the invention to any particular orientation or configuration.

[0081] Finally, when used herein, the term “comprises” and its derivatives (e.g., “comprising”, etc.) should not be construed as having an exclusionary meaning; that is, these terms should not be interpreted as excluding the possibility that the described and defined content may include additional elements, steps, etc. Similarly, when used herein, the term “approximately” and its family of terms (e.g., “approximate”, etc.) should be understood as indicating a value very close to the value associated with the foregoing term. That is, deviations from precise values ​​within a reasonable range should be acceptable, as those skilled in the art will understand that such deviations from the indicated values ​​are unavoidable due to measurement inaccuracies, etc. The same applies to “about,” “around,” and “substantially.”

Claims

1. A rotating machine, comprising: A rotor comprising a plurality of plates defining an opening therebetween, wherein the rotor is configured to rotate to move the plurality of plates; Housing, the housing enclosing the rotor; and An elastomeric member is attached to the surface of the housing, wherein the elastomeric member extends from the surface of the housing toward the rotor and is bent to form a convex shape with a vertex configured to intermittently and sequentially engage with the plurality of plates during rotation of the rotor to form a seal with the rotor.

2. The rotating machine according to claim 1, wherein, The rotating machine includes multiple zones, each of which is configured to receive a different fluid flow. The housing includes a sector plate that extends along the surface of the rotor between adjacent zones, and the surface of the housing to which the elastomeric member is attached has the sector plate.

3. The rotating machine according to any one of claims 1 or 2, wherein, The housing includes an axial plate extending along the circumference of the rotor's outer shell, and the axial plate is present on the surface of the housing to which the elastomeric member is attached.

4. The rotating machine according to any one of claims 1, 2, or 3, wherein, Each of the plurality of plates includes an end surface configured to engage with the elastomeric member, and the end surface is curved, chamfered, includes a lubricating coating, or any combination thereof.

5. The rotating machine according to any one of claims 1, 2, 3 or 4, wherein, The elastomeric member includes a U-shaped configuration that captures segments of the housing for attachment to the surface of the housing.

6. The rotating machine according to any one of claims 1, 2, 3, 4 or 5, the rotating machine comprising an adsorbent material disposed in the opening defined between the plurality of plates.

7. The rotating machine according to any one of claims 1, 2, 3, 4, 5 or 6, wherein, The rotating machine includes a rotating heat exchanger.

8. A sealing device for a rotating machine, the sealing device comprising: The housing segment extends along the rotor of the rotating machine, the rotor including a plurality of radial plates, and the rotor is configured to rotate the plurality of radial plates; as well as An elastomeric member including side ends configured to attach to opposing walls of the housing segments to capture the housing segments between the side ends, wherein the elastomeric member extends from the housing segments toward the rotor to intermittently and sequentially engage with the plurality of radial plates of the rotor as the rotor rotates the plurality of radial plates.

9. The sealing device according to claim 8, wherein, The elastomeric member includes a U-shaped configuration defining a vertex that is configured to intermittently and sequentially engage with the plurality of radial plates of the rotor as the rotor rotates the plurality of radial plates.

10. The sealing device according to any one of claims 8 or 9, the sealing device comprising a fastener extending through a side end to connect the side end to the housing segment.

11. The sealing device according to any one of claims 8, 9 or 10, wherein, The elastomeric member extends from the housing segment toward the rotor to form a gap between the elastomeric member and the housing segment.

12. The sealing device according to claim 11, wherein the sealing device includes an additional elastomeric member disposed in the gap.

13. The sealing device according to claim 12, wherein, The additional elastomeric component is softer than the elastomeric component.

14. The sealing device according to any one of claims 12 or 13, wherein, The additional elastomeric component is in segmental contact with the elastomeric component and the housing.

15. The sealing device according to any one of claims 11, 12, 13 or 14, wherein the sealing device comprises a plurality of additional elastomeric members disposed in the gap and arranged in a segmented, side-by-side manner along the housing within the gap.

16. A rotating machine, comprising: A rotor comprising a plurality of radial plates, wherein the rotor is configured to rotate to move the plurality of radial plates; A housing enclosing the rotor, wherein the housing includes segments extending along the rotor; and An elastomeric member is attached to the plate of the housing, wherein the elastomeric member extends from the segment to sealably engage with the rotor and forms a gap between the elastomeric member and the segment.

17. The rotating machine according to claim 16, wherein, The rotor is configured to receive a fluid flow directed from a first side of the rotor to a second side of the rotor opposite to the first side, and the plate of the housing extends along one of the first side or the second side.

18. The rotating machine according to any one of claims 16 or 17, wherein, The plate of the rotor is radially positioned on the outside of the rotor.

19. The rotating machine according to any one of claims 16, 17 or 18, wherein, The elastomeric member includes a U-shaped configuration having a side end attached to the plate of the housing.

20. The rotating machine according to claim 19, wherein, The elastomeric member includes a curved portion located between the side ends, and the elastomeric member forms a gap between the curved portion and the plate.

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