Support structures for accommodating thermal expansion and glass manufacturing equipment including support structures.

Abstract

A glass manufacturing apparatus includes a stirring chamber disposed on a base. The stirring chamber includes a first inlet port attached to a first connector tube; a chamber conduit; and an elbow conduit. The apparatus further includes a second connector tube connected to the elbow conduit for delivering molten glass therefrom. At least a portion of the second connector tube extends at least partially upward in a vertical direction. The apparatus also includes a delivery container connected to the second connector tube. One of the base or the delivery container is attached to a reference point fixed in the vertical direction. The other of the base or the delivery container is movable in response to thermal expansion of the second connector tube, independent of thermal expansion of the other of the base or the delivery container.

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of priority to U.S. Provisional Application No. 63 / 188,191, filed May 13, 2021, pursuant to 35 U.S. SC § 119, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This specification relates to glass manufacturing equipment, and more specifically, to glass manufacturing equipment having a support structure for accommodating the thermal expansion of a molten glass delivery container. Background Technology

[0004] Glass manufacturing equipment may include a variety of discrete components for melting, processing, and forming glass. For example, among other components, typical glass manufacturing equipment may include a furnace for melting batches of glass constituent components to form molten material precursors (e.g., molten glass), a refining system for removing dissolved gases from the molten glass, a stirring chamber for homogenizing the molten glass, and forming equipment for shaping the molten glass into desired shapes (e.g., strips, cylinders, tubes, etc.). The components of a glass manufacturing equipment may be connected by multiple connector tubes through which the molten glass flows from one component to the next. The connector tubes may be formed of refractory metals, such as platinum or platinum alloys, to withstand the relatively high temperatures and corrosive properties of the molten glass.

[0005] Components of glass manufacturing equipment may be subjected to high temperatures for extended periods. Cycling between room temperature and high-temperature operating conditions can introduce stress into these components. Regular and continuous stress introduction can lead to premature component failure. Furthermore, increasing the production rate of molten glass through the equipment may require higher temperatures to ensure proper flow. Higher operating temperatures can further increase the stress introduced into the components, thereby reducing their lifespan. Summary of the Invention

[0006] A first aspect of this disclosure includes a glass manufacturing apparatus comprising a first component. The first component includes a first connector tube for receiving molten glass; and a stirring chamber disposed on a base, the stirring chamber including: an inlet port attached to the first connector tube; a chamber conduit extending at least partially downward in a vertical direction away from the inlet port; and an elbow conduit including a first portion in fluid communication with the chamber conduit for receiving molten glass therefrom and a second portion extending at an angle from the vertical direction to redirect molten glass flowing out of the chamber conduit. The glass manufacturing apparatus further includes a second component including a second connector tube connected to the elbow conduit for delivering molten glass therefrom, wherein at least a portion of the second connector tube extends at least partially upward in a vertical direction; and a delivery container connected to the second connector tube. One of the base or the delivery container is attached to a reference point fixed in a vertical direction. The other of the base or the delivery container is movable in response to thermal expansion of the second connector tube. The movement of the other of the base or the delivery container in response to thermal expansion of the second connector tube is independent of thermal expansion of the other of the base or the delivery container.

[0007] The second aspect of this disclosure includes the glass manufacturing apparatus according to the first aspect, further comprising: a support system that is in mechanical contact with one of a base or a delivery container attached to a reference point, the support system counteracting a gravitational load associated with one of the base or delivery container to facilitate its vertical expansion away from the reference point upon heating.

[0008] A third aspect of this disclosure includes a glass manufacturing apparatus according to any of the first to second aspects, further comprising: a support structure attached to a reference point and structurally supporting one of a base or a delivery container, wherein the support system includes one or more spring assemblies extending between the base or delivery container and the support structure attached to the reference point.

[0009] The fourth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to third aspects, wherein: a delivery container is fixedly attached to a reference point, and the glass manufacturing apparatus further includes: a stirring chamber support trolley extending horizontally between a second component and a first component; a stirring chamber support frame extending vertically from a base, the stirring chamber support frame structurally supporting a stirring chamber; and one or more sliding joints coupling the stirring chamber support frame to the stirring chamber support trolley such that the base moves vertically relative to the stirring chamber support trolley as the stirring chamber expands.

[0010] The fifth aspect of this disclosure includes a glass manufacturing apparatus according to any of the first to fourth aspects, further comprising a system configured to counteract the weight of the stirring chamber and allow the stirring chamber to expand vertically by applying a force to the stirring chamber.

[0011] The sixth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to fifth aspects, wherein the system includes a weight coupled to a pivot arm coupled to a stirring chamber support trolley.

[0012] The seventh aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to sixth aspects, wherein: the stirring chamber support frame includes a plurality of support arms coupled to a base, and the glass manufacturing apparatus further includes a plurality of sliding joints connecting the stirring chamber support frame to a stirring chamber support trolley, each of the plurality of sliding joints including a support sleeve attached to the stirring chamber support trolley, and each of the support sleeves being slidably coupled to one of the plurality of support arms.

[0013] The eighth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to seventh aspects, wherein the system includes a plurality of mass compensation members coupled to a plurality of support arms of a stirring chamber support frame.

[0014] The ninth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to eighth aspects, wherein a plurality of mass compensation components include a spring assembly that applies an elastic force on a stirring chamber support frame in a vertical direction.

[0015] The tenth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to ninth aspects, wherein the stirring chamber comprises: a metal container, a chamber forming conduit and an elbow conduit; and a retainer structure encapsulating the metal container.

[0016] The eleventh aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to tenth aspects, wherein: a metal container includes a flange disposed opposite to an elbow conduit at an upper end of a stirring chamber, the stirring chamber further including: a plurality of flange extensions extending outwardly from the flange, and the plurality of flange extensions being connected to a reference point.

[0017] The twelfth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to eleventh aspects, further comprising: a plurality of expansion aids extending between a plurality of flange extensions and a support structure coupled to the first component, the plurality of expansion aids applying an upward force to the flanges to assist in the expansion of a portion of the stirring chamber.

[0018] The thirteenth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to twelfth aspects, wherein the stirring chamber further includes: a refractory body surrounding a metal container, the refractory body extending between the metal container and a retainer structure.

[0019] The fourteenth aspect of this disclosure includes glass manufacturing equipment according to any one of the first to thirteenth aspects.

[0020] 14. The glass manufacturing apparatus of claim 13, wherein the retainer structure comprises: a plurality of circumferential segments surrounding a metal container; a plurality of pressure bolt assemblies compressing the metal container in a radially inward direction; and a plurality of tension spring assemblies applying circumferential tension to the plurality of circumferential segments.

[0021] The fifteenth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to fourteenth aspects, wherein a plurality of tension spring assemblies and a plurality of pressure bolts are arranged in a circumferentially alternating manner and configured to suppress strain accumulation within a metal container caused by thermal expansion of a second connector tube.

[0022] The sixteenth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to fifteenth aspects, wherein the second connector tube includes a flow axis that extends upward in a third direction, such that the flow axis forms a non-zero acute angle with the vertical direction toward the delivery container.

[0023] The seventeenth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to sixteenth aspects, wherein the second component includes a plurality of support modules extending around a section of a second connector tube between an elbow conduit and a delivery container, each of the plurality of support modules including a support frame.

[0024] The eighteenth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to seventeenth aspects, wherein the support frames of the successive support modules of the plurality of support modules are coupled to each other via a plurality of sliding joints, such that the ends of the plurality of support modules move along the flow axis of the second connector tube when the second connector tube thermally expands.

[0025] The nineteenth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to eighteenth aspects, further comprising: an expansion auxiliary assembly extending between support frames of successive support modules in a plurality of support modules, the expansion auxiliary assembly including a spring that applies an elastic force to the support frame along the flow axis of the second connector tube.

[0026] The twentieth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the first to nineteenth aspects, wherein an expansion aid assembly is disposed at the end of a second assembly near a delivery container.

[0027] The twenty-first aspect of this disclosure includes a glass manufacturing apparatus comprising: a first assembly including a first connector tube for delivering molten glass from a clarifying vessel and a stirring chamber disposed on a base. The stirring chamber includes: an inlet port attached to the first connector tube; a chamber conduit extending at least partially downward in a vertical direction away from the inlet port, the chamber conduit including a central axis; and an elbow conduit connected to the chamber conduit and redirecting the molten glass in a second direction. The glass manufacturing apparatus further includes: a stirring chamber support frame attached to the base, the stirring chamber support frame including a plurality of stirring chamber support frames; a second assembly including a second connector tube connected to the elbow conduit to a vertically fixed delivery vessel, wherein at least a portion of the second connector tube extends vertically upward along a flow axis; and a stirring chamber support trolley extending between the first assembly and the second assembly. The stirring chamber support frame trolley is connected to the stirring chamber support frame via a plurality of sliding joints such that the stirring chamber support frame moves vertically relative to the stirring chamber support frame trolley during thermal expansion of the stirring chamber.

[0028] The 22nd aspect of this disclosure includes a glass manufacturing apparatus according to the 21st aspect, wherein: a stirring chamber support frame includes a plurality of support arms extending vertically upward from a base, a stirring chamber support trolley includes a plurality of support sleeves, each of the plurality of support arms extending through one of the plurality of support sleeves, and a sliding joint is disposed between the plurality of support sleeves and the support arms.

[0029] The twentieth aspect of this disclosure includes a glass manufacturing apparatus according to any of the twentieth or twentieth-second aspects, further comprising a plurality of mass compensation members coupled to a plurality of support arms of a stirring chamber support frame, the mass compensation members applying an upward force to the stirring chamber in a vertical direction.

[0030] The twentieth aspect of this disclosure includes glass manufacturing equipment according to any one of the twentieth to twenty-third aspects, wherein a plurality of mass compensation components include a plurality of spring components.

[0031] The twentieth aspect of this disclosure includes glass manufacturing equipment according to any one of the twentieth to twenty-fourth aspects, wherein a plurality of mass compensation components include a plurality of hydraulic cylinders.

[0032] The twentieth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the twentieth to twenty-fifth aspects, wherein a stirring chamber support trolley is attached to the stirring chamber via a support frame at the inlet port.

[0033] The twentieth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the twentieth to twenty-sixth aspects, wherein the inlet port includes an expansion neutral point of a stirring chamber, the neutral point being fixed in the vertical direction.

[0034] The twentieth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the twentieth to twentieth seven aspects, wherein the stirring chamber includes: a metal container forming a chamber conduit and an elbow conduit; a retainer structure enclosing the metal container, the metal container including a flange disposed opposite to the elbow conduit at the upper end of the stirring chamber.

[0035] The 29th aspect of this disclosure includes a glass manufacturing apparatus according to any one of the 21st to 28th aspects, wherein the stirring chamber further includes a plurality of flange extensions extending outwardly from a flange, the plurality of flange extensions being connected to a stirring chamber support trolley.

[0036] The thirtieth aspect of this disclosure includes a glass manufacturing apparatus according to any one of aspects twenty-one to twenty-nine, wherein the stirring chamber further includes a refractory body encapsulating a metal container between the metal container and a retainer structure.

[0037] The thirty-first aspect of this disclosure includes a glass manufacturing apparatus according to any of the twenty-first to thirtieth aspects, further including a plurality of expansion aids extending between a plurality of flange extensions and a flange support structure connected to a stirring chamber support trolley, the plurality of expansion aids applying an upward force to the flanges to help a portion of the stirring chamber expand.

[0038] The thirty-second aspect of this disclosure includes a glass manufacturing apparatus according to any one of aspects twenty-one to thirty-one, wherein: the retainer structure includes: a plurality of tension spring assemblies applying tension in the circumferential direction to the retainer structure surrounding the refractory body; and a plurality of pressure bolt assemblies applying pressure in the radial direction to the metal container via the refractory body.

[0039] The thirty-third aspect of this disclosure includes a glass manufacturing apparatus according to any one of the twenty-first to thirty-second aspects, wherein a plurality of tension spring assemblies and a plurality of pressure bolts are arranged in a circumferentially alternating manner and configured to suppress strain accumulation within the metal container due to thermal expansion of the second connector tube.

[0040] The thirty-fourth aspect of this disclosure includes a glass manufacturing apparatus according to any one of the twenty-first to thirty-third aspects, wherein the second component includes a plurality of support modules extending around a section of a second connector tube between an elbow conduit and a delivery container, wherein a succession support module among the plurality of support modules is coupled to each other via a plurality of sliding joints such that the ends of the plurality of modules move along the flow axis of the second connector tube when the second connector tube thermally expands.

[0041] The thirty-fifth aspect of this disclosure includes a glass manufacturing apparatus according to any of the twenty-first to thirty-fourth aspects, further including an expansion aid assembly extending between successive modules in a plurality of support modules, the expansion aid assembly including a spring that applies an elastic force along the flow axis of a second connector tube.

[0042] The thirty-sixth aspect of this disclosure includes a method for mitigating stress at the outlet port of a stirring chamber in a glass manufacturing apparatus, comprising: introducing molten glass into the inlet port of the stirring chamber, causing the molten glass to flow through a metal container of the stirring chamber and into a connector tube, the connector tube being connected to a delivery container of the glass manufacturing apparatus at the outlet port, wherein: the connector tube includes a flow axis extending partially upward in a vertical direction between the outlet port and the delivery container, contact between the molten glass and the connector tube causing thermal expansion of the connector tube along the axis, the stirring chamber being disposed on a base. The method further includes allowing relative movement between the delivery container and the base due to the thermal expansion of the connector tube to mitigate stress accumulation at the outlet port.

[0043] The thirty-seventh aspect of this disclosure includes a method according to the thirty-sixth aspect, wherein: molten glass causes the metal container of the stirring chamber to thermally expand in the vertical direction, and a base is attached via a stirring chamber support frame to a stirring chamber support trolley extending between an inlet port and a delivery container, and allowing relative movement between the delivery container and the base includes: in response to the thermal expansion of the metal container, sliding a support member of the stirring chamber support frame relative to the stirring chamber support trolley via a plurality of sliding joints.

[0044] The thirty-eighth aspect of this disclosure includes a method according to any of the thirty-sixth to thirty-seventh aspects, further comprising: counteracting the weight of the stirring chamber by applying a force to the stirring chamber support frame in a vertically upward direction before introducing the molten glass into the inlet port.

[0045] The thirty-ninth aspect of this disclosure includes a method according to any of the thirty-sixth to thirty-eighth aspects, wherein allowing relative movement between the delivery container and the base includes translating the delivery container in a horizontal direction in response to thermal expansion of the second connector tube.

[0046] The fortieth aspect of this disclosure includes a method according to any of the thirty-sixth to thirty-ninth aspects, further comprising attaching the metal container to the base by a plurality of links extending radially outward from the flange of the metal container before introducing the molten glass into the inlet port.

[0047] The forty-first aspect of this disclosure includes a method according to any of the thirty-sixth to fortieth aspects, further including counteracting the weight of the flange before introducing the molten glass.

[0048] The forty-second aspect of this disclosure includes a method according to any one of aspects thirty-six to forty-one, further including the use of an expansion aid to help the connector tube expand along the axis.

[0049] The forty-third aspect of this disclosure includes a method according to any of the thirty-sixth to forty-second aspects, further comprising, after the introduction of molten glass, applying radial pressure to the metal container by means of a plurality of pressure bolt assemblies distributed circumferentially around the metal container to avoid strain accumulation.

[0050] The forty-fourth aspect of this disclosure includes a method according to any one of the thirty-sixth to forty-third aspects, wherein: a plurality of pressure bolt assemblies apply radial pressure to a retainer structure encapsulating a metal container, and the method further includes circumferentially stretching the retainer structure via a plurality of tension spring assemblies.

[0051] The additional features and advantages of the support structure and glass manufacturing equipment including the same structure described herein will be set forth in the following detailed description, and will be apparent in part from the description or recognized by those skilled in the art through practice of the embodiments described herein, including the following detailed description, claims and drawings.

[0052] It should be understood that both the above general description and the following detailed description describe various embodiments and are intended to provide an overview or framework for understanding the nature and characteristics of the claimed subject matter. Drawings are included to provide a further understanding of the various embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate the various embodiments described herein and, together with the description, explain the principles and operation of the claimed subject matter. Attached Figure Description

[0053] Figure 1 A glass manufacturing apparatus according to one or more embodiments shown and described herein is schematically depicted;

[0054] Figure 2A The illustration schematically depicts one or more embodiments described herein. Figure 1 The support structure provides structural support for multiple components of the glass manufacturing equipment;

[0055] Figure 2B A schematic depiction of one or more embodiments according to the present document. Figure 2A The supporting structure of the stirring chamber includes the supporting frame and the supporting structure of the stirring chamber.

[0056] Figure 2C A schematic depiction of one or more embodiments according to the present document. Figure 1 The metal container of the stirring chamber in glass manufacturing equipment;

[0057] Figure 2D A schematic depiction of one or more embodiments according to the present document. Figure 2A The supporting structure of the mixing chamber and the supporting trolley for the mixing chamber;

[0058] Figure 3 The passage schematically depicts one or more embodiments described herein. Figure 2A Line 3-3 in the middle, Figure 1 Cross-sectional views of glass manufacturing equipment, including Figure 2A Support structure;

[0059] Figure 4 The illustration schematically depicts one or more embodiments according to the present document. Figure 1 The glass manufacturing equipment extends between the stirring chamber and the delivery container. Figure 2B Components of the supporting structure;

[0060] Figure 5 The illustration schematically depicts a device including an expansion aid according to one or more embodiments described herein. Figure 4 Components; and

[0061] Figure 6 The illustration schematically depicts one or more embodiments described herein. Figure 1 The support structure provides structural support for multiple components of the glass manufacturing equipment. Detailed Implementation

[0062] Reference will now be made in detail to a support structure for a molten glass delivery apparatus and embodiments of a glass manufacturing apparatus including the same support structure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same component reference numerals will be used throughout the drawings to refer to the same or similar parts. In an embodiment, the glass manufacturing apparatus described herein includes a refining vessel for receiving molten glass, a stirring chamber including stirring equipment for homogenizing the molten glass received from the refining vessel, and a delivery vessel that redirects the molten glass to a forming device for shaping the molten glass into a desired form. First and second connector tubes may be used to fluidly connect the stirring chamber to both the refining vessel and the delivery vessel. Introducing the molten glass into the connector tubes and the stirring chamber may cause it to thermally expand. Various structural aspects of the glass manufacturing apparatus described herein prevent stress and strain from accumulating at the bottom portion of the stirring chamber, which is connected to a second connector tube. In an embodiment, the support structure described herein allows the base of the stirring chamber and the delivery vessel to move relative to each other during the thermal expansion of the various components of the glass manufacturing apparatus to avoid stress and strain accumulation. For example, in an embodiment, the delivery vessel is attached to a reference point fixed along a longitudinal axis (e.g., a structure in which the glass manufacturing apparatus is housed within a building). The mixing chamber support trolley can be connected to the delivery container and fixed along the longitudinal axis. The base of the mixing chamber can be connected to the mixing chamber support trolley via multiple sliding joints formed between the mixing chamber support frame and the mixing chamber support trolley. Such sliding joints allow the base of the mixing chamber to move along the longitudinal axis in coordination with the thermal expansion of the mixing chamber, thereby avoiding strain accumulation at the bottom of the mixing chamber.

[0063] Such relative movement between the base of the stirring chamber and the delivery container during thermal expansion avoids stress and strain accumulation caused by the expansion of the second connector tube. For example, in one embodiment, the stirring chamber includes a chamber conduit extending along the axis of the stirring chamber and an elbow conduit extending from the chamber conduit. The elbow conduit connects the chamber conduit to the second connector tube. In another embodiment, the second connector tube includes a second connector tube axis extending at an angle to the axis of the stirring chamber, such that its uninhibited thermal expansion occurs at least partially along the longitudinal axis. Allowing relative movement between the base and the delivery container facilitates thermal expansion of the second connector tube along the longitudinal axis, reducing stress accumulation beyond that present in glass manufacturing equipment where both the delivery container and the base are fixed along the longitudinal axis. In another embodiment, the second connector tube is supported by a plurality of support modules extending along different axial sections of the second connector tube between the stirring chamber and the delivery container. Such support modules may include support frames coupled to each other by a plurality of sliding joints, allowing the modules to move relative to each other along the connector tube axis as the second connector tube thermally expands. In one implementation, expansion aids may extend between such support modules to facilitate such expansion along the connector tube axis to avoid strain accumulation.

[0064] Additional aspects of the stirring chamber described herein can be designed to facilitate its thermal expansion. In an embodiment, the stirring chamber includes a metal container in contact with molten glass, a refractory body encasing the metal container to thermally insulate it, and a retainer structure supporting the metal container and the refractory body. The refractory body may be constructed of a suitable refractory material (e.g., one or more ceramics). To allow for thermal expansion of the metal container while still maintaining sufficient pressure on the refractory body via the retainer (and thus avoiding radial strain buildup due to glass indentation), the retainer may include a plurality of pressure bolt assemblies and tension spring assemblies distributed circumferentially around the stirring chamber. In an embodiment, the stirring chamber includes a flange extending from its upper end. A plurality of flange extensions may extend from the flange to connect the metal container to a stirring chamber support trolley. Such a linkage establishes the flange as a manufacturing reference (i.e., a reference) for mounting the refractory body and retainer of the stirring chamber, thereby eliminating the need to fix the bottom portion of the stirring chamber during manufacturing and thus avoiding expansion inhibition.

[0065] As used herein, the term "fixed" can refer to the movement of a component within a reference frame and the manner of connection between two or more components. When a single component is referred to as "fixed," that component may be stationary within the reference coordinate system (e.g., associated with the Earth or a building). When a first component is "fixed" to or "fixedly attached" to a second component, the two components do not move relative to each other, at least at the connection point between the two components.

[0066] Ranges can be expressed herein as from "about" a specific value and / or to "about" another specific value. Another implementation of expressing this range includes from one specific value and / or to another specific value. Similarly, it will be understood that this specific value forms another implementation when the value is expressed as an approximation using the antecedent "about". It will be further understood that each endpoint of a range is significant relative to the other endpoint and independent of the other endpoints.

[0067] As used in this article, directional terms such as up, down, right, left, front, back, top, bottom are for reference only and are not intended to imply absolute orientation.

[0068] Unless otherwise expressly stated, it is not intended to interpret any method described herein as requiring steps to be performed in a particular order, or that the device requires no particular orientation. Accordingly, where a method claim does not explicitly enumerate the order in which its steps should be followed, or where any device claim does not explicitly enumerate the order or orientation of individual components, or where the claims or description do not specifically state that the steps will be limited to a particular order, or where a particular order or orientation of device components is not enumerated, it is not intended to infer any order or orientation in any way. This claim applies to any interpretation that may not be based on the expression itself, including with respect to logical problems related to the arrangement of steps, operational flow, order of components, or orientation of components; to derive simple and clear meaning from grammatical organization or punctuation; and to the numbers or types of embodiments described in the description.

[0069] As used herein, unless the content explicitly specifies otherwise, the singular forms “a”, “an”, and “the” include plural objects. Thus, for example, unless the content explicitly states otherwise, a reference to the “a” component includes aspects having two or more such components.

[0070] The example is for reference only. Figure 1 This diagram schematically depicts an embodiment of a glass manufacturing apparatus 10 for forming glass articles from molten glass. The glass manufacturing apparatus 10 may include a furnace 11, a refining system 13, a stirring chamber 14, a delivery container 18, and forming equipment 20. A batch of glass material is introduced into the furnace 11 through a batch material inlet port 12. The batch material is melted in the furnace 11 to form molten glass 16. The furnace 11 is fluidly coupled to the refining system 13 via a connector pipe 50. The molten glass 16 flows out of the furnace 11, through the connector pipe 50, and into the refining system 13.

[0071] The refining system 13 may include a high-temperature processing zone that receives molten glass 16 from the furnace 11. While the molten glass 16 is residing in the refining system 13, dissolved gases and / or bubbles are removed from it. The refining system 13 can be fluidly coupled to a stirring chamber 14 via a first connector pipe 15. That is, molten glass flowing from the refining system 13 to the stirring chamber 14 can flow through the first connector pipe 15. As the molten glass 16 flows through the stirring chamber 14, it can be stirred to homogenize it. Subsequently, the stirring chamber 14 is fluidly coupled to a delivery container 18 via a second connector pipe 17, such that molten glass flowing from the stirring chamber 14 to the delivery container 18 flows through the second connector pipe 17. Figure 1 As depicted, the second connector tube 17 is at least partially along the longitudinal axis (e.g., Figure 1The second connector tube 17 extends upward (as shown on the Z-axis). This upward extension can be used to regulate the pressure of the molten glass 16 flowing within the glass manufacturing apparatus 10. For example, in one embodiment, the upward extension of the second connector tube 17 can prevent the flow of molten glass to the delivery container 18 without pressure generated by the stirring chamber 14. For example, the stirring chamber 14 may include a stirring device that generates a glass indenter that causes the molten glass to move from the furnace 11 to the delivery container 18. Due to the upward extension of the second connector tube 17, the molten glass may not flow to the forming apparatus 20 without actuation of the stirring device.

[0072] Delivery container 18 supplies molten glass 16 to forming equipment 20 via downcomer 19. Forming equipment 20 may be, for example, but not limited to, a melt drawing machine or other forming equipment for forming molten glass into glass articles such as strips, tubes, ingots, etc. Figure 1 In the depicted embodiment, the forming apparatus 20 is a melt drawing machine, which includes a housing 22, an inlet port 24, and a forming container 30 positioned within the housing. Molten glass 16 from a downcomer 19 flows into the inlet port 24, which leads to the forming container 30. The forming container 30 includes an opening 32 for receiving the molten glass 16. The molten glass 16 can flow into a channel 33, and then overflow and flow down the two converging sides 34a and 34b of the forming container 30 before contacting and being drawn downstream 41 and before fusing together at the root 36 of the forming container 30 (where the two sides meet), to form a continuous glass ribbon 38.

[0073] although Figure 1 The glass manufacturing apparatus 10 is schematically depicted for forming glass ribbons using a melt drawing machine, but other processes can also be used to form glass ribbons, including, but not limited to, float glass processes, slot drawing processes, etc. Furthermore, although the glass manufacturing apparatus 10 is depicted for forming glass ribbons, other glass manufacturing apparatus can be used to form glass stock materials other than glass sheets, including, but not limited to, glass tubes, glass cylinders, ingots, etc.

[0074] The glassmaking apparatus 10 can be constructed at room temperature and subsequently operated at elevated temperatures. Heating the components of the glassmaking apparatus 10 to the operating temperature increases the size of the components according to their respective coefficients of thermal expansion. For example, connector tubes 15, 17, and 50 and stirring chamber 14 can be formed of refractory metal and can thermally expand once the connector tubes and stirring chamber are heated. The structure of the glassmaking apparatus 10 can suppress the expansion of one or more components and cause stress accumulation in the components when heated to the operating temperature. Figure 1As depicted, for example, a bottom portion 40 of a stirring chamber 14 is disposed on a base 42 and the stirring chamber 14 is connected to a second connector tube 17. The base 42 may be fixed (i.e., mechanically grounded). The base 42 may inhibit the downward expansion of the stirring chamber 14 along its longitudinal axis (e.g., in the negative Z direction), resulting in stress within the bottom portion 40 of the stirring chamber 14. The base 42 may also inhibit the expansion of the second connector tube 17 along its axis, resulting in the accumulation of stress and strain at the transition between the stirring chamber 14 and the second connector tube 17. Such accumulated stress and strain within the stirring chamber 14 and the second connector tube 17 may lead to component failure and interruption of the operation of the glass manufacturing equipment 10.

[0075] This document discloses a support structure for the stirring chamber 14, the second connector tube 17, and the delivery container 18, which accommodates their thermal expansion to avoid such accumulated stress and strain. The support structure of this disclosure facilitates relative movement between a base 42 disposed thereon in the upper stirring chamber 14 and a reference support 44 to which the delivery container 18 is attached. In an embodiment, the reference support 44 may be fixed in a reference frame of the glass manufacturing apparatus 10. For example, in an embodiment, the reference support 44 includes a mounting structure fixedly attached to the ground or a wall of a building in which the glass manufacturing apparatus 10 is disposed. In an embodiment, the support structure described herein facilitates the base 42 relative to the reference support 44 along a longitudinal axis (e.g., Figure 1 The Z-axis (in the coordinate system depicted) moves in response to the thermal expansion of various components of the base of the glass manufacturing apparatus 10. For example, during heating, the stirring chamber 14 (or a portion thereof) may expand along the longitudinal axis, causing the base 42 to move downward along the longitudinal axis (e.g., in…). Figure 1 (In the depicted negative Z direction). In existing glass manufacturing equipment, the base 42 can be fixed relative to the reference support 44 (e.g., such that the positioning of the base 42 relative to the reference support 44 does not change during the thermal expansion of various components of the glass manufacturing equipment 10), thereby inhibiting the downward expansion of the stirring chamber 14 and the second connector tube 17. The mobility of the base 42 along the longitudinal axis allows the stirring chamber 14 to expand downward and avoids the accumulation of stress and strain caused by thermal expansion.

[0076] In embodiments, the support structure described herein facilitates the delivery container 18 along the transverse axis (e.g., during the thermal expansion of various components of the glass manufacturing apparatus 10) Figure 1 The X-axis (in the coordinate system depicted in the figure) moves. Such horizontal movement of the delivery container 18 can alleviate the accumulation of stress and strain in the bottom portion 40 of the second connector tube 17 near the stirring chamber 14. Various aspects of the support structure used to provide such relative movement between the base 42 and the delivery container 18 will now be described in more detail.

[0077] Figure 2AThe supporting structure 100 is schematically depicted, which structurally supports references in this text. Figure 1 The glass manufacturing equipment 10 is described above. In one embodiment, the support structure 100 includes components for supporting what is referred to herein. Figure 1 The glass manufacturing equipment 10 includes various components such as the first connector tube 15, the stirring chamber 14, and the second connector tube 17. Figure 2A As depicted, the support structure 100 includes the clarification system 13 ( Figure 2A A first component 104 (not shown) extends between the mixing chamber 14 and the first component 106, and a second component 106 extends between the mixing chamber 14 and the delivery container 18. The first component 104 includes a first support frame 210 structurally supporting the first connector tube 15, and the second component 106 includes a second support frame 212 structurally supporting the second connector tube 17. In an embodiment, the first support frame 210 and the second support frame 212 include a plurality of support members formed of a load-bearing material, such as, for example, but not limited to, structural steel or similar load-bearing materials. In an embodiment, the first component 104 and the second component 106 further include a refractory body (not depicted) extending between the first support frame 210 and the second support frame 212 and the first and second connector tubes 15 and 17. The refractory body provides thermal insulation for the first connector tube 15 and the second connector tube 17. In an embodiment, the first component 104 and the second component 106 include a plurality of modules, each module being structurally supported by a separate support frame. In an embodiment, each module structurally supports a separate axial section of one of the first or second connector tubes 15 or 17. In this implementation, leakage of molten glass between adjacent modules of the first and second components 104 and 106 is permitted. As the molten glass cools and solidifies, a glass seal is formed between the adjacent modules to contain the molten glass within the first connector tube 15 and the second connector tube 17. This segmentation of the first component 104 and the second component 106 facilitates adaptation to the thermal expansion of the first connector tube 15 and the second connector tube 17.

[0078] In an embodiment, the second connector tube 17 includes a portion positioned relative to the horizontal direction (e.g., Figure 2A The second connector tube axis 202 extends at an elevation angle α (towards the positive X direction of the coordinate axis depicted in the figure). The second connector tube axis 202 may be the molten glass 16 (see figure 18) extending between the stirring chamber 14 and the delivery container 18. Figure 1The flow axis of the molten glass is defined by an elevation angle α. An elevation angle α establishes a gravitational force opposite to the flow of the molten glass, which is overcome as the molten glass flows through the second connector tube 17 to the delivery container 18. In this embodiment, pressure accumulates in the molten glass as it travels through the stirring chamber 14. The accumulated pressure is sufficient to overcome the upward extension of the second connector tube 17 and the associated gravity. In this embodiment, a stirring device (not depicted) disposed within the stirring chamber 14 facilitates the generation of sufficient pressure for the molten glass to reach the delivery container 18. If the stirring device is not operating and does not pressurize the molten glass, the molten glass may not reach the delivery container 18. The elevation angle α can facilitate preventing the molten glass from flowing without the need for additional components (e.g., stop pins or the like) in the flow path of the molten glass.

[0079] In one embodiment, the reference support 44, on which the delivery container 18 is disposed, includes a mounting platform fixedly attached to an anchoring structure (e.g., associated with a building where the glass manufacturing equipment 10 is housed). In this embodiment, the delivery container 18 is fixedly attached to the reference support 44. In this way, the delivery container 18 can remain fixed, independent of thermal expansion of adjacent components (e.g., the second connector tube 17). Given this fixedness of the delivery container 18, the support structure 100 includes a stirring chamber support trolley 214 connected to the delivery container 18. The stirring chamber support trolley 214 is fixedly attached to the reference support 44 (e.g., via the support structure associated with the delivery container 18) and provides structural support for various components of the glass manufacturing equipment 10. Figure 2A As depicted, the mixing chamber support trolley 214 includes a support arm 216, which is at least partially positioned in the horizontal direction between the mixing chamber 14 and the delivery container 18 (e.g., Figure 2A Extending in the + / -X direction (as shown). The support arm 216 can be connected to the reference support 44 via the attachment arm 226. In one embodiment, the support arm 216 is movably coupled to the attachment arm 226 to allow the mixing chamber support trolley 214 to move horizontally relative to the reference support 44.

[0080] Still refer to Figure 2AThe mixing chamber support trolley 214 further includes an extension arm 218 extending from the support arm 216. The extension arm 218 is attached to a first support frame 210 of the first assembly 104 via one or more support brackets 220, such that the extension arm 218 vertically supports the first assembly 104. The support arm 216 and the extension arm 218 are further supported via a plurality of track assemblies 222. The plurality of track assemblies 222 are fixedly attached to a support structure (not depicted) coupled to a building on which the glass manufacturing equipment 10 is housed, such that the track assemblies 222 are mechanically grounded (i.e., positioned) within a reference frame of the glass manufacturing equipment 10. In an embodiment, the plurality of track assemblies 222 include tracks extending generally in a horizontal direction. A plurality of roller assemblies 224 are slidably engaged with the plurality of track assemblies 222 to facilitate movement of the mixing chamber support trolley 214 relative to the plurality of track assemblies 222. In one embodiment, the thermal expansion of the first connector tube 15 and the second connector tube 17 can cause the extension arm 218 to slide relative to the support arm 216 via a movable connection between the roller assembly 224 and the track assembly 222. In another embodiment, the support arm 216 is movably attached to the delivery container 18 via the support arm 216 to facilitate horizontal movement of the support arm 216 in conjunction with the thermal expansion of the second connector tube 17. In this way, the plurality of track assemblies 222 and the plurality of roller assemblies 224 facilitate the horizontal thermal expansion of the first connector tube 15 and the second connector tube 17 while still providing structural support for the first assembly 104 and the second assembly 106 in the vertical direction.

[0081] In one embodiment, a plurality of roller assemblies 224 are attached to the extension arm 218 via adjusting bolts. The adjusting bolts can be manually adjusted in response to the vertical thermal expansion of the stirring chamber 14 during heating. In one embodiment, for example, the stirring chamber 14 can expand at least partially upward along its axis 108, causing the second connector tube 17 attached to its inlet port to move upward. The adjusting bolts facilitate the coordinated movement of the first assembly 104 in conjunction with the vertical expansion of the stirring chamber 14 to avoid strain buildup at the inlet port of the stirring chamber 14 and potential associated leakage. The adjusting bolts also prevent the weight of the first assembly 104 from impeding the vertical expansion of the stirring chamber 14.

[0082] In implementations, various aspects of the support structure 100 can be designed to reduce the need for manual adjustment of the adjusting bolts to accommodate the vertical expansion of the mixing chamber 14. For example... Figure 2AAs depicted, the support structure 100 includes a stirring chamber support frame 110 extending from the base 42 of the stirring chamber 14. The stirring chamber support frame 110 includes a plurality of stirring chamber support arms 112 extending vertically from the base 42, generally parallel to the axis 108 of the stirring chamber 14. In an embodiment, the plurality of stirring chamber support arms 112 are attached to a retainer structure 116, which is then coupled to the stirring chamber 14, thereby providing structural support for the stirring chamber 14.

[0083] Now refer to Figure 2A and 2B The support structure 100 further includes a mixing chamber support structure 118 fixedly attached to the mixing chamber support trolley 214. The mixing chamber support structure 118 includes a plurality of mixing chamber support members 120 attached to the mixing chamber support trolley 214. The plurality of mixing chamber support members 120 may extend vertically and are generally parallel to the axis 108 of the mixing chamber 14. In one embodiment, the plurality of mixing chamber support members 120 includes sleeves receiving a plurality of mixing chamber support arms 112 of the mixing chamber support frame 110. In one embodiment, the plurality of mixing chamber support members 120 are sized to define cavities larger than the circumferential dimensions of the plurality of mixing chamber support arms 112, such that a gap 124 extends between the plurality of mixing chamber support members 120 and the plurality of mixing chamber support arms 112. The gap 124 isolates the weight of the first assembly 104 from the mixing chamber 14, thereby preventing the weight of the first assembly 104 from inhibiting the vertical expansion of the mixing chamber 14.

[0084] In one embodiment, a stirring chamber support arm 112 is disposed within the stirring chamber support arm 112 to create a plurality of sliding joints. The sliding joints can be configured to facilitate and guide the movement of the plurality of stirring chamber support arms 112 relative to the plurality of stirring chamber support members 120 in response to the thermal expansion of the stirring chamber 14. In one embodiment, the sliding joint includes one or more bearings (e.g., ball bearings, roller bearings, fluid bearings, or other suitable types of bearings) disposed in each gap 124 to reduce friction caused by the movement of the plurality of stirring chamber support arms 112 within the cavity defined by the plurality of stirring chamber support members 120. In one embodiment, the sliding joint is configured to guide the relative movement of the plurality of stirring chamber support arms 112 based on a predetermined thermal expansion path of the stirring chamber 14. For example, based on the interconnection between various components of the glass manufacturing apparatus 10 (see...). Figure 1The direction in which axis 108 extends may vary slightly depending on the thermal state of the glass-making apparatus 10 (e.g., expansion of the second connector tube 17 may cause axis 108 to rotate slightly clockwise). In addition to the movement of the movable arms 102 of a plurality of stirring chamber supports along axis 108 (e.g., by providing sufficient clearance for such movement), a plurality of stirring chamber support members 120 and sliding joints disposed therein may be designed to allow such rotational movement of the entire stirring chamber 14. For example, the gap 124 between the stirring chamber support arm 112 and the stirring chamber support member 120 may accommodate slight rotation of the stirring chamber 14 while also facilitating thermal expansion of the stirring chamber 14 in the vertical direction.

[0085] By moving a plurality of mixing chamber support arms 112 relative to the mixing chamber support trolley 214, the mixing chamber support structure 118, in conjunction with the thermal expansion of the bottom portion 40 of the mixing chamber 14, causes the base 42 to move downward in the vertical direction (see...). Figure 1 Due to the gap 124, the base 42 is allowed to move vertically relative to the reference support 44 to which the delivery container 18 is anchored. This mobility of the base 42 facilitates the axial thermal expansion of both the stirring chamber 14 and the second connector tube 17, thereby preventing the accumulation of stress and strain therein.

[0086] Figure 2C The metal container 126 of the stirring chamber 14 described herein is schematically depicted. In an embodiment, the metal container 126 is constructed of a metallic material such as platinum, a platinum alloy, or other suitable material. The metal container 126 includes an inlet port 128 and an outlet port 130. The inlet port 128 includes a connector tube 15 (see...) Figure 1 The fluid-connected opening allows molten glass to enter the stirring chamber 14. Once inside the metal container 126 via the inlet port 128, the molten glass is guided toward the outlet port 130 via the chamber conduit 132 and the elbow conduit 134. The chamber conduit 132 extends vertically, allowing gravity to guide the molten glass along axis 108 through it toward the elbow conduit 134. The elbow conduit 134 redirects the flow of molten glass to the second conductor tube 17 (see...). Figure 1 Elbow tube 134 includes a portion of chamber tube 132 generally in the vertical direction (e.g., Figure 2C The first portion 136 extends in the Z direction of the coordinate system depicted herein, and the second portion 138 extends at an angle (e.g., perpendicular or substantially perpendicular) to the first portion 136. As described herein, the second portion 138 defines an outlet port 130 and can be attached to a second connector tube 17 to deliver molten glass to a delivery container 18.

[0087] like Figure 2CAs depicted, the metal container 126 further includes a discharge pipe 140 extending from the elbow conduit 134. In an embodiment, when the glass manufacturing apparatus 10 is not used for production, the discharge pipe 140 is used to discharge molten glass from the stirring chamber 14 (and other parts of the glass manufacturing apparatus 10). In an embodiment, the discharge pipe 140 extends through the base 42 (see reference 134). Figure 1 This provides a path for the molten glass to be emptied from the stirring chamber 14. In one embodiment, the discharge pipe 140 is not fixedly attached to the base 42, but rather slidably engaged therewith, such that a portion of the discharge pipe 140 can slide relative to the base 42 in response to the thermal expansion of the metal container 126. This vertical mobility of the discharge pipe 140 advantageously prevents suppression of the downward expansion of the metal container 126. For example, if the discharge pipe 140 were fixedly attached to the base 42, the downward expansion of the metal container 126 could be suppressed, resulting in strain and buckling stress in the lower portion 142 of the chamber conduit 132 and the elbow conduit 134. By allowing vertical mobility of the discharge pipe 140, the support structure 100 described herein advantageously avoids such strain and buckling stress, thereby preventing potential leaks and contributing to the long-term operability of the glass manufacturing apparatus 10.

[0088] In one embodiment, the second portion 138 of the elbow tube conduit 134 may extend in a different direction than the second connector tube 17. For example, in the depicted embodiment, the second portion 138 extends in the horizontal direction (e.g., in...). Figure 2C The second connector tube 17 extends along the axis 202 of the second connector tube at an elevation angle α relative to the horizontal direction (see the coordinate system depicted in the figure). Figure 2A As a result, the axial expansion of the second connector tube 17 occurs at least partially downward in the vertical direction. Therefore, the mobility of the discharge tube 140 described herein also allows for the axial expansion of the second connector tube 17, thereby avoiding strain accumulation at the connection point between the second connector tube 17 and the elbow conduit 134.

[0089] In existing glassmaking equipment, the base 42 and the discharge pipe 140 are vertically fixed to provide a production base for additional components of the stirring chamber 14 (e.g., refractory body and retainer structure). The fixing of the discharge pipe 140 holds the metal container 126 in place to allow for the construction of such additional components around the metal container 126. However, since the discharge pipe 140 is movable in the depicted embodiment, one or more alternative locations of the metal container 126 can be fixed to facilitate the assembly of the stirring chamber 14. In this embodiment, the metal container 126 includes a flange 144 at its upper end. The flange 144 is typically used as a connection point for an electrical power source that supplies current to the metal container 126 to heat the molten glass therein. In the depicted embodiment, the flange 144 can be vertically fixed to serve as a production reference typically provided by the discharge pipe 140 in existing glassmaking equipment. The flange 144 can be fixed (not depicted) within a reference frame of the glassmaking equipment 10 to facilitate the assembly of the stirring chamber 14.

[0090] Now refer to Figure 2D In one embodiment, the flange 144 includes a plurality of flange extensions 146 extending radially outward from the body of the metal container 126 (e.g., radially away from the axis 108 from the main portion of the flange 144). The flange extensions 146 may be made of the same material as the remainder of the flange 144. The flange extensions 146 are attached to the stirring chamber support structure 118 by a plurality of bolt assemblies 148. Figure 2D In the embodiment depicted, the mixing chamber support structure 118 includes a plurality of support frames 150 attached to a plurality of mixing chamber support members 120. Each of the plurality of support frames 150 includes a support surface 152 extending vertically or substantially vertically (e.g., within 20°) to axis 108. A plurality of bolt assemblies 148 extend between flange extensions 146 and the support surfaces 152 of the plurality of support frames 150 to secure the flange 144 of the metal container 126 in a vertical direction. That is, the mixing chamber support structure 118 serves as a manufacturing reference for the mixing chamber 14 via the flange 144 of the metal container 126. In an embodiment, for example, the flange 144 is securely attached to the mixing chamber support trolley 214 via the plurality of flange extensions 146 to facilitate the assembly of the remainder of the mixing chamber 14 around the metal container 126.

[0091] In one embodiment, each of the plurality of bolt assemblies 148 includes a spring assembly 154. In another embodiment, each spring assembly 154 includes a spring or other suitable elastic member compressed between one of the support surfaces 152 of the stirring chamber support structure 118 and the housing of the spring assembly 154. Due to this compression, the spring assembly 154 applies a force vertically upward along axis 108 toward the flange 144. The force applied by the spring assembly 154 assists the upper portion 156 of the metal container 126 extending between the inlet port 128 and the flange 144 (see...). Figure 2C Thermal expansion. In this way, the flange extension 146 facilitates thermal expansion of several different parts of the metal container 126: the lower part 142 by allowing the movement of the discharge pipe 140 relative to the base 42; and the upper part 156 by providing a mechanical connection to the stirring chamber support structure 118 via a spring assembly 154, which provides a force to counteract the weight of the flange 144 and any components attached thereto.

[0092] Still refer to Figure 2D The mixing chamber support structure 118 further includes a support frame 160 that structurally supports the inlet port 128 of the metal container 126. In one embodiment, the support frame 160 includes an opening 162 through which the inlet port 128 of the metal container 126 extends. The support frame 160 is attached to the mixing chamber support trolley 214 via a plurality of connecting bolts 164 extending between a plurality of support brackets 150 and the support frame 160. In this way, via the opening 162 and fixed to the mixing chamber support trolley 214, the support frame 160 holds the inlet port 128 in place during the thermal expansion of the metal container 126. Because the inlet port 128 is held in place, the first component 104 of the support structure 100 (see...) Figure 2A It can remain fixed during the operation of glass manufacturing equipment and can eliminate or reduce the need to adjust its vertical positioning (via...) Figure 2A (The vertical adjusting bolts depicted in the image). The support frame 160 also prevents the weight of the first component 104 from suppressing the thermal expansion of the metal container 126.

[0093] Reference Figure 2C and 2DThe vertical extension of the chamber conduit 132 causes the weight of the metal container 126 to suppress the thermal expansion of different portions of the metal container 126 in various ways. For example, the upward thermal expansion of the lower portion 142 and other portions of the metal container 126 extending above the lower portion 142 can be suppressed by the weight of the upper portion 156 and the flange 144. Such suppression causes the metal container 126, including the thermal expansion neutral point 166, to tend to remain axially fixed even during periods of thermal expansion. In an embodiment, the metal container 126 and the support structure 100 are configured such that the thermal expansion neutral point 166 is positioned along the axis 108 at a vertical height overlapping with the inlet port 128. Given that the inlet port 128 is held fixed by the support frame 160, such positioning of the thermal expansion neutral point 166 prevents the support frame 160 from suppressing the thermal expansion of the various portions of the metal container 126 and prevents stress and strain from accumulating at the inlet port 128.

[0094] Reference Figure 2B and 2D The mixing chamber support structure 118 further includes a mass compensation system 168 configured to apply a compensating force to at least a portion of the mixing chamber support structure 118 in a vertically upward direction. The force applied by the mass compensation system 168 counteracts at least a portion of the gravity from the mass of the mixing chamber 14, preventing stress and strain accumulation in the metal container 126. In the depicted embodiment, the mass compensation system 168 includes a plurality of mass compensation members 170 disposed at the end of each of the plurality of mixing chamber support arms 112. In this embodiment, via connection to the plurality of mixing chamber support members 120, the plurality of mass compensation members 170 can apply an upward force to the mixing chamber support frame 110 to counteract the weight of the mixing chamber 14 and prevent undesirable stress and strain accumulation within the metal container 126. In this embodiment, each of the plurality of mass compensation members 170 includes a spring member or other suitable load source, such as a pneumatic cylinder, hydraulic cylinder, compression spring, etc., which applies a biasing force in a vertically upward direction. In one implementation, each of the plurality of mass compensation members 170 applies the same force to provide a balanced counterforce.

[0095] Depending on the implementation, the mass compensation system 168 can take various forms. For example, in one embodiment, the plurality of mass compensation members 170 include attachment bolts, such as spring bolts, coupling each of the plurality of stirring chamber support arms 112 to the stirring chamber support structure 118. In these embodiments, the attachment bolts can be manually adjusted during operation of the glassmaking equipment to allow for thermal expansion of the metal container 126. In another embodiment, the mass compensation system 168 includes a single mass compensation member attached to the stirring chamber support trolley 214. For example, in one embodiment, the mass compensation system 168 includes, for example, a pneumatic cylinder or actuator (not depicted) extending between the base 42 and the stirring chamber support trolley 214. The pneumatic cylinder or actuator applies a compensating force to the stirring chamber support trolley 214. In other embodiments, the mass compensation system 168 includes a counterweight (not depicted) that is at least partially horizontal (e.g., on) Figure 2D A pivot arm extending from the mixing chamber support trolley 214 (in the + / -X direction of the coordinate axes depicted in the figure) is pivotally coupled to the mixing chamber support trolley 214. The pivot arm can act as a torque multiplier, so that the weight of the counterweight applies a vertically upward compensating force to the mixing chamber support trolley 214 through the pivot arm.

[0096] Figure 3 The illustration schematically depicts, according to an exemplary embodiment, by... Figure 2A A cross-sectional view of the stirring chamber 14 (including a portion of the associated support structure 100) along line 3-3. In the depicted embodiment, except as referenced herein... Figure 2B Outside the metal container 126, the stirring chamber 14 includes a casting element 250 surrounding the metal container 126, a refractory body 252 surrounding the casting element 250, and a retainer structure 116. In one embodiment, the casting element 250 at least partially encloses the metal container 126 and is constructed of a castable refractory material such as cast ceramic cement. The casting element 250 provides structural support and thermal insulation for the metal container 126. In another embodiment, the stirring chamber 14 includes a gap (not depicted) extending between the metal container 126 and the casting element 250 (e.g., resulting from the solidification of the casting element 250). Such a gap provides space for the thermal expansion of the metal container 126 radially outward from axis 108 (see reference). Figure 2A ).

[0097] In one embodiment, the refractory body 252 encapsulates and surrounds the casting element 250. The refractory body 252 may be constructed of a refractory ceramic material that insulates the metal container 126 and the molten glass flowing through it. In one embodiment, the refractory body 252 minimizes the temperature variation of the metal container 126 in the radial direction. The refractory body 252 may be formed of, for example, but not limited to, alumina, zirconium oxide, stabilized zirconium oxide, and / or combinations thereof. In one embodiment, the refractory body 252 may be formed of a plurality of discrete parts assembled around the metal container 126. As described herein, the retainer structure 116 provides structural support for other components of the stirring chamber 14 by providing linkages with, for example, the stirring chamber support frame 110 and the stirring chamber support trolley 214. The retainer structure 116 may be formed of a load-bearing material, such as, for example, but not limited to, structural steel or similar load-bearing materials.

[0098] In the embodiment, the retainer structure 116 and the refractory body 252 are in the radially inward direction (e.g., towards) Figure 2C The axis 108 depicted applies pressure to the metal container 126 to counteract deformation of the metal container 126 due to thermal expansion during operation of the glass manufacturing apparatus 10. For example, if the metal container 126 does not have sufficient structural support, the uniform stress from the molten glass may cause latent deformation of the metal container 126, resulting in radially outward deformation. Specifically, in the lower portion 246 of the chamber conduit 132 and the elbow conduit 134 (see...) Figure 2C The pressure from the glass head can cause additional stress and strain to accumulate in the metal container 126. During long-term operation, the accumulated stress and strain from creep and glass head pressure can lead to additional leakage or deformation of the metal container 126, or even failure of the metal container 126.

[0099] In an embodiment, to counteract the cumulative stress and strain associated with creep and glass head pressure, the retainer structure 116 further includes a plurality of pressure bolt assemblies 264 and a plurality of tension spring assemblies 266. The plurality of pressure bolt assemblies 264 are configured in a radially inward direction (e.g., toward...). Figure 2A The axis 108 depicted applies pressure to the metal container 126 to suppress the accumulation of tensile and radial stress and strain within the metal container 126. Figure 3 As depicted, multiple pressure bolt assemblies 264 are included in the stirring chamber support frame 110 (see [reference]). Figure 2A Connector bolts 268 extend between the main body 290 of the retainer structure 116 encapsulating the refractory body 252 and the main body 290, thereby coupling the retainer structure 116 to the stirring chamber support frame 110.

[0100] In one embodiment, the mixing chamber support frame 110 includes a plurality of support frames 267 extending from each of a plurality of mixing chamber support arms 112. Each connector bolt 268 associated with one of a plurality of pressure bolt assemblies 264 extends through it toward the body 290 of the retainer structure 116 by one of the support frames 267. A pressure head 273 extends from each connector bolt 268 and contacts the body 290 of the retainer structure 116. In one embodiment, each of the plurality of pressure bolt assemblies 264 includes a spring assembly 270 (or other force applicator, such as a pneumatic cylinder or the like), which includes a spring or other suitable elastic member compressed via one of the support frames 267. The spring assembly 270 can cause the connector bolt 268 to be compressed in a radially inward direction (e.g., toward axis 108, see reference 108). Figure 2A Apply force to counteract the creep and radial outward expansion from the pressure of the glass head.

[0101] In embodiments, a plurality of pressure bolt assemblies 264 are arranged to provide a circumferentially uniform radial pressure distribution to the metal container 126. For example, in the depicted embodiment, the plurality of pressure bolt assemblies 264 are arranged in a relative relationship such that each of the plurality of pressure bolt assemblies 264 includes a relative pressure bolt assembly extending at either end of the outer diameter of the refractory body 252. Although in the depicted embodiment each of the plurality of pressure bolt assemblies 264 is coupled to one of the plurality of stirring chamber support arms 112, it should be understood that alternative embodiments are contemplated to include different numbers and arrangements of the plurality of pressure bolt assemblies 264. For example, in an embodiment, the support structure 100 includes independently supported pressure bolt assemblies that are not directly connected to one of the plurality of stirring chamber support arms 112. Any number and arrangement of pressure bolt assemblies can be used according to this disclosure.

[0102] Still refer to Figure 3 Multiple tension spring assemblies 266 maintain the geometric proportions of the retainer structure 116 to retain structural support provided to the metal container 126. The body 290 of the retainer structure 116 is depicted as including a first circumferential segment 292 and a second circumferential segment 294. The first and second circumferential segments 292 and 294 include radially outwardly extending extensions 278 and 280 at their ends. Multiple tension spring assemblies 266 connect the first and second circumferential segments 292 and 294 to each other via extensions 278 and 280. In the depicted embodiment, each of the multiple tension spring assemblies 266 includes a connecting rod 276 extending through a through opening in extensions 278 and 280. A spring assembly 282 is disposed on the outer surface of extension 280, and a head of the connecting rod 276 is disposed on the outer surface of extension 278. The spring or other suitable elastic member of the spring assembly 282 is compressed in a plane perpendicular to axis 108 (e.g., in…). Figure 3 Forces are generated in the + / -X direction of the coordinate axes depicted in the figure.

[0103] In response to the thermal expansion of the metal container 126 and the radial compression of the spring assembly 270 of the pressure bolt assembly 264, the tension spring assembly 266 prevents the circumferential segments 292 and 294 of the body 290 from separating from each other, thereby enabling the retainer structure 116 to maintain pressure on the metal container 126 via the refractory body 252. Regardless of the expansion state of the metal container 126, the plurality of tension spring assemblies 266 help the body 290 maintain its cross-sectional profile, thereby preventing deformation and failure of the metal container 126. In the depicted embodiment, the plurality of tension spring assemblies 266 and the plurality of pressure bolt assemblies 264 are arranged in an alternating circumferential arrangement, wherein at least one pressure bolt assembly 264 is provided between successive tension spring assemblies of the plurality of tension spring assemblies 266. This arrangement is advantageous because the tension spring assembly 266 provided on either side of one of the pressure bolt assemblies 264 can counteract any radial movement of the portion of the body 290 compressed via the pressure bolt assembly 264. However, it should be understood that alternative embodiments including different circumferential distributions of pressure bolt assemblies and tension spring assemblies are also conceivable. For example, in some embodiments, the retainer structure 116 may not include multiple pressure bolt assemblies 264. In some embodiments, the retainer structure 116 may not include multiple tension spring assemblies 266.

[0104] Now refer to Figure 4 Schematic depiction of the references in this article Figure 2A An example of the second component 106 of the described support structure 100. (See also...) Figure 1 and 4 The second component 106 includes a second support frame 212 for extending a second connector tube 17 between the base 42 and the delivery container 18. The second support frame 212 includes a plurality of modules 300 (e.g., first module 300a, second module 300b, third module 300c, fourth module 300d, fifth module 300e, sixth module 300f, seventh module 300g, eighth module 300h, ninth module 300i, and tenth module 300j) at the elbow tube conduit 134 (see...). Figure 2CThe second connector tube 17 extends around different axial sections between the delivery container 18 and the base 42. In an embodiment, each of the plurality of modules 300 includes a bracket 320 that defines a support volume through which the second connector tube 17 (and any additional components enclosing the second connector tube 17, such as a refractory body enclosing the axial sections of the second connector tube 17) extends. Each of the plurality of modules 300 may also include a separate support frame to structurally support one of the axial sections of the second connector tube 17 through the refractory body of the module. For example, the second support frame 212 is depicted as including a first support frame 302 extending from the base 42 and a second support frame 304 extending from the delivery container 18. The first axial support frame 31, the second axial support frame 316, and the third axial support frame 318 extend parallel to or substantially parallel to the axis 202 of the second connector tube and connect the first and second support frames 302 and 304 to each other. Although the depicted embodiments include three axial support frames, a first axial support frame 314, a second axial support frame 316, and a third axial support frame 318, it should be understood that the second component 106 may include any number of such axial support frames according to this disclosure.

[0105] In one embodiment, a first support frame 302 is connected to a first axial support frame 314 via a first connector 306, and a second support frame 304 is connected to a third axial support frame 318 via a second connector 308. In another embodiment, the first axial support frame 314 is rotatably coupled to the first support frame 302 via the first connector 306, and the third axial support frame 318 is rotatably coupled to the second support frame 304 via the second connector 308. The first support frame 302 can be attached to the base 42 via an attachment pin 310 extending from the base 42. The attachment pin 310 can extend through a slit in the first support frame 302. The slit in the first support frame 302 can extend in a horizontal direction (e.g., along...). Figure 4 The first support frame 302 is movable relative to the base 42 in response to the horizontal thermal expansion of the second connector tube 17. The second support frame 304 can be attached to the delivery container 18 via an attachment pin 312 extending from a portion of the delivery container 18 (e.g., the base). The attachment pin 312 can extend through a slit in the second support frame 304. The slit in the second support frame 304 can extend in the horizontal direction to allow the second support frame 304 to move relative to the delivery container 18 in response to the horizontal thermal expansion of the second connector tube 17. The rotatable connection between the first and second support frames 302 and 304 and the first and third axial support frames 314 and 318 facilitates maintaining an angle α (see the coordinate axis 202) between the axis 202 of the second connector tube and the axis 108 of the stirring chamber 14. Figure 2AAs the second connector tube 17 undergoes thermal expansion and contraction, it prevents the accumulation of various stresses and strains therein.

[0106] The multiple modules 300 and the first axial support 31, the second axial support 316 and the third axial support 318 can be arranged in various forms so that the multiple modules 300 can move relative to each other to avoid obstructing the second connector tube 17 (see...). Figure 1 Thermal expansion along the axis 202 of the second connector tube. For example, in one embodiment, each of the first axial support 31, the second axial support 316, and the third axial support 318 may include one or more track systems 322 that support a bracket 320 of one of the plurality of modules 300. The track systems 322 of the first axial support 31, the second axial support 316, and the third axial support 318 may extend parallel to or substantially parallel to the axis 202 of the second connector tube to structurally support the second connector tube 17 in a desired orientation. The brackets 320 may be movably coupled to the track systems 322 via rollers to allow each bracket 320 to move along the axis 202 of the second connector tube 17 during thermal expansion and compression.

[0107] In one embodiment, the track system 322 of the first axial support frame 31, the second axial support frame 316, and the third axial support frame 318 is movably coupled to each other via sliding joints 324 and 326. For example, in one embodiment, the first axial support frame 314 and the third axial support frame 318 at least partially overlap with the second axial support frame 316 along the second connector tube axis 202, and the movably coupled components (e.g., rollers, mounting rail brackets, etc.) are not in... Figure 4 (As depicted) The first and third axial support frames 314 and 318 are coupled to the second axial support frame 316 at axially overlapping locations to form sliding joints 324 and 326. For example, in one embodiment, the first axial support frame 31, the second axial support frame 316, and the third axial support frame 318 include a housing or support structure for a track system 322 for overlapping each other to form sliding joints 324 and 326. The movable connection between the first axial support frame 31, the second axial support frame 316, and the third axial support frame 318 facilitates thermal expansion of the second connector tube 17 away from the delivery container 18 (e.g., toward the base 42) to prevent stress and strain accumulation during operation.

[0108] Figure 5 A schematic depiction of the references in this article Figure 2A Another exemplary embodiment of the second component 106 of the support structure 100. In this embodiment, the second component 106 is structurally similar to that described herein. Figure 4 The described implementation method. Accordingly, similar component symbols are incorporated. Figure 4 In the middle, it can represent the combination of these similar components. Figure 5 The embodiment of the second component 106 depicted in the middle can be different from that referred to Figure 5 described in that the inflation assist 400 extends between the delivery container 18 and the second axial support frame 316. In the depicted embodiment, the inflation assist 400 includes a rod 402 that extends between the delivery container 18 and a support frame 404 attached to the second axial support frame 316. The rod 402 is connected to the base 406 of the delivery container 18 via a connector assembly 410. In an embodiment, the connector assembly 410 includes a support frame coupled to the third axial support frame 318. In an embodiment, the rod 402 extends across the sliding joint 326 between the first and second axial support frames 314 and 316 in a direction parallel to the second connector tube axis 202 ( Figure 5 not depicted in the middle, refer to Figure 4 ).

[0109] In an embodiment, the inflation assist 400 includes a spring assembly 408 that extends around the rod 402. The spring assembly 408 can be compressed to provide an elastic force that extends toward the base 42. By extending across the sliding joint 326, such an elastic force can assist the second axial support frame 316 and the third axial support frame 318 to move relative to each other to facilitate the expansion of the second connector tube 17 along the second connector tube axis 202 away from the delivery container 18. The inflation assist 400 can also counteract the weight of the agitation chamber 14 to further prevent the inhibition of the expansion of the second connector tube 17. Although Figure 5 the inflation assist 400 depicted in the middle includes a spring assembly 408, alternative assist mechanisms have been considered and are within the scope of the present disclosure. For example, in an embodiment, the inflation assist 400 can include a pneumatic cylinder, an actuator, or any other load source capable of applying an assist force along the second connector tube axis 202 away from the delivery container 18.

[0110] Although the depicted embodiment incorporates a single inflation assist 400 that extends along a portion of the second support frame 212 near the delivery container 18, alternative arrangements have been considered, including "expansion assists" with different positioning and / or quantities of inflation assists and are within the scope of the present disclosure. For example, in an embodiment, multiple inflation assists structurally similar to the inflation assist 400 described herein can extend from the delivery container 18. In an embodiment, the multiple inflation assists can extend to different axial positions on the second support frame 212. In an embodiment, one or more inflation assists can apply a force directly to the base 42 or the agitation chamber 14 to prevent the expansion of the second connector tube 17 from being inhibited.

[0111] Figure 6The supporting structure 600 is schematically depicted and is used for reference in this paper. Figure 1 Various structural components of the described glass manufacturing apparatus 10 provide structural support. The support structure 600 includes a first component 602 providing structural support for a first connector tube 15 and a second component 604 providing structural support for a second connector tube 17. In embodiments, the first and second components 602 and 604 are structurally similar to those described herein. Figures 2A to 5 The first component 104 and the second component 106 are described. The support structure 600 may be referenced herein. Figures 2A to 5 The difference in the described support structure 100 is that the support structure 600 can be designed to accommodate the base 42 of the stationary stirring chamber (e.g., fixed in the reference frame of the glass manufacturing apparatus 10). The support structure 600 allows the stirring chamber 14 to be in the upward direction (e.g., Figure 6 Free expansion along the positive Z-direction of the coordinate axis depicted in the figure.

[0112] To prevent the second connector tube 17 from expanding along the connector tube axis 610 and to avoid the accumulation of stress and strain therein, the delivery container 18 may be in a horizontal direction (e.g., in...). Figure 6 (Move along the positive or negative X direction on the coordinate axis). For example, as... Figure 6 As depicted, a delivery container 18 is disposed on a support trolley 608. The support trolley 608 is movable within a reference frame of the glass manufacturing apparatus 10 (e.g., not fixedly attached to a fixed structure). In one embodiment, for example, the support trolley 608 includes a roller assembly (not depicted) that engages with a support structure (e.g., a track structure, surface, etc.) fixed within the reference frame of the glass manufacturing apparatus 10. That is, the support trolley 608 movably supports the delivery container 18. In another embodiment, the support trolley 608 is fixed in the vertical direction (e.g., along...). Figure 6 (The positive Z-direction and negative Z-direction of the coordinate axes depicted in the figure). Thermal expansion of the second connector tube 17 along the connector tube axis 610 can cause the delivery container 18 to move.

[0113] In one embodiment, to facilitate such movement of the delivery container 18, the support structure 600 includes a support mechanism 612 that contacts the delivery container 18. The support mechanism 612 counteracts the gravitational load associated with the delivery container 18 to prevent friction from inhibiting horizontal movement of the delivery container 18 in response to thermal expansion of the second connector tube 17. In one embodiment, the support mechanism 612 includes one or more elements configured to apply a force in an upward vertical direction to the delivery container to counteract the weight of the delivery container 18. For example, in one embodiment, the support mechanism 612 includes a plurality of spring assemblies, actuators, or pneumatic cylinders that contact a support structure (e.g., a support arm) supporting the delivery container 18. For example, in one embodiment, the support structure 600 includes a plurality of support arms (not depicted) movably coupled to a fixed reference of the glass manufacturing apparatus 10 and configured to cooperate with a support trolley 608 for horizontal movement (e.g., the plurality of support arms may extend from the support trolley 608). In one embodiment, the support mechanism 612 includes multiple spring assemblies, actuators, or pneumatic cylinders that couple multiple support arms to the delivery container and apply forces in a vertically upward direction to counteract the weight of the delivery container 18. In another embodiment, the support system includes a counterweight pivotally coupled to the delivery container 18 via a pivot arm (not depicted). The counterweight can apply a downward force at a first end of the pivot arm to push upwards a second end of the pivot arm coupled to the delivery container 18. In another embodiment, the support mechanism 612 includes a support structure extending from a fixed reference point. Such a support structure may include rails or a rail system that engage with features of the delivery container 18 (e.g., rollers, extensions, etc.) to vertically support the delivery container 18 while also allowing its horizontal movement. In yet another embodiment, the support mechanism 612 includes a movable hanger system that extends above the delivery container 18 and includes multiple hanger elements (e.g., support lines or other suitable structures) that engage with the delivery container 18.

[0114] like Figure 6 As depicted, the support structure 600 further includes a stirring chamber support trolley 606. In one embodiment, the stirring chamber support trolley 606 is fixedly attached to a reference frame of the glass manufacturing apparatus 10. In another embodiment, the stirring chamber support trolley 606 is supported by the base 42 via a support structure 614 extending vertically between the base 42 and the stirring chamber support trolley 606.

[0115] In the embodiment, the connection point between the first connector tube 15 and the stirring chamber 14 (e.g., via...) Figure 2CThe inlet port 128 depicted herein is not fixed within the reference frame of the glass manufacturing apparatus 10 to allow thermal expansion of the stirring chamber 14 in the vertically upward direction. That is, in contrast to being fixed near the inlet port 128 in the support structure 100, the upper portion of the stirring chamber 14 is allowed to move relative to the stirring chamber support trolley 606 to prevent inhibition of the expansion of the stirring chamber 14. The stirring chamber support trolley 606 is depicted as including a support arm 620 connected to the base 42 via the support structure 614 and an extension 622 extending from the support arm 620 to overlap with a first assembly 602 supporting the first connector tube 15. In an embodiment, the extension 622 is movable relative to the support arm 620 to prevent inhibition of the vertical expansion of the stirring chamber 14. In an embodiment, the support arm 620 and the extension 622 are fixed to the reference of the glass manufacturing apparatus 10 via a plurality of assemblies 624. The assemblies 624 may be structurally similar to those referenced herein. Figure 2A The plurality of roller and track assemblies 222 and 224 allow the support arm 620 and / or extension arm 622 to move in response to the thermal expansion and contraction of the components of the glass manufacturing equipment 10.

[0116] To allow for horizontal movement of the delivery container 18, the mixing chamber support trolley 606 may be loosely attached to the delivery container 18. For example... Figure 6 As depicted herein, for example, the end 616 of the mixing chamber support trolley 606 is not directly attached to the delivery container 18 or the support trolley 608. In an embodiment, the second component 604 includes those referenced herein. Figures 2A to 5 The second component 106 of the support structure 100 has several features described herein. For example, in one embodiment, the second component 106 includes a plurality of modules 300, which are referenced herein. Figure 4 The sliding joints 324 and 326 are connected to each other to prevent suppression of expansion of the second connector tube 17 along the connector tube axis 610. In an embodiment, the second component 604 includes one or more expansion aids configured to apply force and counteract the resistance to expansion caused by the delivery container 18. For example, in an embodiment, the second component 604 includes components similar to those referenced herein. Figure 5 The expansion aid 400 described includes an expansion aid (e.g., a rod and compression spring extending parallel to the connector tube axis 610). Such an expansion aid may extend between or connect to a support frame 618 between the bases 42, the support frame structurally supporting the second connector tube 17. In various embodiments, the support frame 618 may be structurally similar to that referenced herein. Figures 2A to 5 The second support frame 212.

[0117] In this embodiment, due to the support structure 600, the structure of the stirring chamber 14 may differ from that described above. Figure 2CThe structure described above. In an embodiment, the discharge pipe 140 (see [reference]) can be connected via a discharge pipe ring (not depicted). Figure 2C It is securely attached to the base 42. The secure attachment of the discharge pipe 140 eliminates interference with the reference... Figure 2C The described metal container 126 requires a flange extension 146 that extends radially outward from its main body. As a result, the manner in which the stirring chamber 14 is supported via the stirring chamber support trolley 606 can differ from that described herein. Figures 2A to 2C The described embodiments are as follows. However, various aspects of the stirring chamber support structure 118 described herein (e.g., flange extension 146, spring assembly 154, stirring chamber support member 120, etc.) are contemplated in which the support structure 600 includes. In some embodiments, for example, the support structure 600 may include those referred to herein. Figures 2A to 2C The plurality of mass compensation members 170 are used to compensate for the mass of the stirring chamber 14 and to prevent expansion inhibition. Various combinations of various aspects of the above-described support structure have been considered and are within the scope of this disclosure.

[0118] The support structure for glass manufacturing equipment described herein can be configured to prevent the suppression of thermal expansion of the stirring chamber and the connector tube extending between the stirring chamber and the delivery container. The support structure described herein allows relative movement between the bottom portion of the stirring chamber and the delivery container to avoid the accumulation of stress and strain at the bottom of the stirring chamber and at the connector tube. Such relative movement facilitates thermal expansion of the stirring chamber and the connector tube, and prevents leakage and other potential failure modes.

[0119] It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments described herein without departing from the spirit and scope of the claimed subject matter. Therefore, it is contemplated that such modifications and variations fall within the scope of the appended claims and their equivalents, and this specification is intended to cover improvements and variations of the various embodiments described herein.

Claims

1. A glass manufacturing apparatus comprising: (A) a first assembly comprising (i) a first connector tube to receive molten glass; (ii) a stir chamber disposed on a base, the stir chamber comprising: (a) an inlet port connected to the first connector tube; (b) a chamber conduit extending at least partially downward in a vertical direction away from the inlet port; and (c) an elbow conduit comprising a first portion in fluid communication with the chamber conduit to receive molten glass therefrom and a second portion extending at an angle from the vertical direction to redirect the molten glass flowing from the chamber conduit; (B) a second assembly comprising: (i) a second connector tube connected to the elbow conduit to deliver molten glass therefrom, wherein at least a portion of the second connector tube extends at least partially upward in the vertical direction; and (ii) a delivery vessel connected to the second connector tube, wherein: one of the base or the delivery vessel is attached to a reference point that is fixed in the vertical direction; the other of the base or the delivery vessel is movable in response to thermal expansion of the second connector tube; and movement of the other of the base or the delivery vessel in response to thermal expansion of the second connector tube is independent of thermal expansion of the other of the base or the delivery vessel.

2. The glass manufacturing apparatus of claim 1, further comprising: a support system in mechanical contact with the one of the base or the delivery vessel attached to the reference point, the support system counteracting a gravitational load associated with the one of the base or the delivery vessel to facilitate vertical expansion thereof away from the reference point upon heating.

3. The glass manufacturing apparatus of claim 2, further comprising: a support structure attached to the reference point and structurally supporting the one of the base or the delivery vessel, wherein the support system comprises one or more spring assemblies extending between the one of the base or the delivery vessel and the support structure attached to the reference point.

4. The glass manufacturing apparatus of claim 1, wherein: the delivery vessel is fixedly attached to the reference point, and the glass manufacturing apparatus further comprises: a stir chamber support cart extending in a horizontal direction between the second assembly and the first assembly, a stir chamber support frame extending vertically from the base, the stir chamber support frame structurally supporting the stir chamber, and one or more slip joints coupling the stir chamber support frame to the stir chamber support cart such that the base moves relative to the stir chamber support cart in the vertical direction as the stir chamber expands.

5. The glass manufacturing apparatus of claim 4, further comprising a system configured to counteract a weight of the stir chamber and to permit the stir chamber to vertically expand via application of a force to the stir chamber.

6. The glass manufacturing apparatus of claim 5, wherein the system comprises a weight coupled to a pivot arm, the pivot arm coupled to the stir chamber support cart.

7. The glass manufacturing apparatus of claim 5, wherein: the stir chamber support frame comprises a plurality of support arms connected to the base, The glass manufacturing apparatus further includes a plurality of sliding joints coupling the stirring chamber support frame to the stirring chamber support cart, each of the plurality of sliding joints includes a support sleeve attached to the stirring chamber support cart, and each of the support sleeves is slidingly coupled to one of the plurality of support arms.

8. The glass manufacturing apparatus of claim 7, wherein the system includes a plurality of mass compensation members coupled to the plurality of support arms of the stirring chamber support frame.

9. The glass manufacturing apparatus of claim 8, wherein the plurality of mass compensation members include spring assemblies that exert a resilient force on the stirring chamber support frame in a vertical direction.

10. The glass manufacturing apparatus of claim 1, wherein the stirring chamber includes: a metal container forming the chamber conduit and the elbow conduit; and a retainer structure enclosing the metal container.

11. The glass manufacturing apparatus of claim 10, wherein: the metal container includes a flange disposed at an end of the stirring chamber opposite the elbow conduit, the stirring chamber further includes a plurality of flange extensions extending outwardly from the flange, and the plurality of flange extensions are connected to the reference point.

12. The glass manufacturing apparatus of claim 11, further comprising a plurality of expansion aids extending between the plurality of flange extensions and a support structure coupled to the first assembly, the plurality of expansion aids exerting an upward force on the flange to assist in expansion of a portion of the stirring chamber.

13. The glass manufacturing apparatus of claim 10, wherein the stirring chamber further includes a refractory body surrounding the metal container, the refractory body extending between the metal container and the retainer structure.

14. The glass manufacturing apparatus of claim 13, wherein the retainer structure includes: a plurality of circumferential segments surrounding the metal container; a plurality of compression bolt assemblies compressing the metal container in a radially inward direction; and a plurality of tension spring assemblies exerting circumferential tension on the plurality of circumferential segments.

15. The glass manufacturing apparatus of claim 14, wherein the plurality of tension spring assemblies and the plurality of compression bolts are disposed in a circumferentially alternating arrangement and configured to suppress strain build-up within the metal container due to thermal expansion of the second connector tube.

16. The glass manufacturing apparatus of claim 1, wherein the second connector tube includes a flow axis extending in a third direction, the flow axis forming a non-zero acute angle with the vertical direction toward the delivery vessel.

17. The glass manufacturing apparatus of claim 16, wherein the second assembly includes a plurality of support modules extending around a segment of the second connector tube between the elbow conduit and the delivery vessel, the plurality of support modules each including a support frame.

18. The glass manufacturing apparatus of claim 17, wherein the support frames of successive ones of the plurality of support modules are coupled to one another via a plurality of sliding joints such that ends of the plurality of support modules move along the flow axis of the second connector tube upon thermal expansion of the second connector tube.

19. The glass manufacturing apparatus of claim 18, further comprising an expansion assist assembly extending between the support frames of successive ones of the plurality of support modules, the expansion assist assembly comprising springs that apply an elastic force to the support frames along the flow axis of the second connector tube.

20. The glass manufacturing apparatus of claim 19, wherein the expansion assist assembly is disposed proximate the delivery vessel at an end of the second assembly.

21. A glass manufacturing apparatus comprising: (A) a first assembly comprising a first connector tube for delivering molten glass from a fining vessel; (B) a stir chamber disposed on a base, the stir chamber comprising: (i) an inlet port attached to the first connector tube; (ii) a chamber conduit extending downward in a vertical direction away from the inlet port, the chamber conduit comprising a central axis; and (iii) an elbow conduit connected to the chamber conduit and redirecting the molten glass in a second direction; (C) a stir chamber support frame attached to the base, the stir chamber support frame comprising a plurality of stir chamber support frames; (D) a second assembly comprising a second connector tube, the second connector tube connected to the elbow conduit to a vertically fixed delivery vessel, wherein at least a portion of the second connector tube extends vertically upward along a flow axis; and (E) a stir chamber support cart extending between the first assembly and the second assembly, the stir chamber support frame cart connected to the stir chamber support frame via a plurality of sliding joints such that the stir chamber support frame moves in the vertical direction relative to the stir chamber support frame cart upon thermal expansion of the stir chamber.

22. The glass manufacturing apparatus of claim 21, wherein: the stir chamber support frame comprises a plurality of support arms extending vertically upward from the base, the stir chamber support cart comprises a plurality of support sleeves, each of the plurality of support arms extends through one of the plurality of support sleeves, and the sliding joints are disposed between the plurality of support sleeves and support arms.

23. The glass manufacturing apparatus of claim 22, further comprising a plurality of mass compensation members coupled to the plurality of support arms of the stir chamber support frame, the mass compensation members applying a force upward in a vertical direction to the stir chamber.

24. The glass manufacturing apparatus of claim 23, wherein the plurality of mass compensation members comprise a plurality of spring members.

25. The glass manufacturing apparatus of claim 23, wherein the plurality of mass compensation members comprise a plurality of hydraulic cylinders.

26. The glass manufacturing apparatus of claim 21, wherein the stir chamber support cart is attached to the stir chamber via a support bracket at the inlet port.

27. The glass manufacturing apparatus of claim 26, wherein the inlet port comprises a neutral point of expansion of the stir chamber, the neutral point remaining fixed in the vertical direction.

28. The glass manufacturing apparatus of claim 21, wherein the stir chamber comprises: a metal vessel forming the chamber conduit and the elbow conduit; a retainer structure enclosing the metal vessel; and the metal vessel comprises a flange disposed opposite the elbow conduit at an upper end of the stir chamber.

29. The glass manufacturing apparatus of claim 28, wherein the stir chamber further comprises a plurality of flange extensions extending outward from the flange, the plurality of flange extensions connected to the stir chamber support cart.

30. The glass manufacturing apparatus of claim 28, wherein the stir chamber further comprises a refractory body enclosing the metal vessel between the metal vessel and the retainer structure.

31. The glass manufacturing apparatus of claim 29, further comprising a plurality of expansion aids extending between the plurality of flange extensions and a flange support structure connected to the stir chamber support cart, the plurality of expansion aids applying an upward force to the flange to assist in expansion of a portion of the stir chamber.

32. The glass manufacturing apparatus of claim 30, wherein: the retainer structure comprises: a plurality of tension spring assemblies applying tension to the retainer structure surrounding the refractory body in a circumferential direction; a plurality of pressure bolt assemblies applying pressure to the metal vessel via the refractory body in a radial direction.

33. The glass manufacturing apparatus of claim 32, wherein the plurality of tension spring assemblies and the plurality of pressure bolts are disposed in a circumferentially alternating arrangement and configured to suppress strain build-up within the metal vessel with thermal expansion of a second connector tube.

34. The glass manufacturing apparatus of claim 21, wherein the second assembly comprises a plurality of support modules extending around a section of the second connector tube between the elbow conduit and the delivery vessel, wherein successive support modules of the plurality of support modules are coupled to one another via a plurality of sliding joints such that end portions of the plurality of modules move along the flow axis of the second connector tube as the second connector tube thermally expands.

35. The glass manufacturing apparatus of claim 34, further comprising an expansion aid assembly extending between successive modules of the plurality of support modules, the expansion aid assembly comprising a spring applying an elastic force along the flow axis of the second connector tube.

36. A method of mitigating stress at an outlet port of a stir chamber of a glass manufacturing apparatus, the method comprising: ​ (A) introducing molten glass into an inlet port of the stir chamber, thereby causing the molten glass to flow through a metal container of the stir chamber and into a connector tube that connects the outlet port to a delivery vessel of the glass manufacturing apparatus, wherein: the connector tube comprises a flow axis that extends partially upward in a vertical direction between the outlet port and the delivery vessel, contact between the molten glass and the connector tube causes the connector tube to thermally expand along the axis, and the stir chamber is disposed on a base; and (B) permitting relative motion between the delivery vessel and the base due to the thermal expansion of the connector tube to relieve stress build-up of the outlet port.

37. The method of claim 36, wherein: the molten glass causes the metal container of the stir chamber to thermally expand in the vertical direction, the base is attached to a stir chamber support cart that extends between the inlet port and the delivery vessel via a stir chamber support frame, and the permitting relative motion between the delivery vessel and the base comprises sliding support members of the stir chamber support frame relative to the stir chamber support cart via a plurality of slide joints in response to the thermal expansion of the metal container.

38. The method of claim 37, further comprising counterbalancing a weight of the stir chamber by applying a force to the stir chamber support frame in a vertically upward direction prior to introducing the molten glass into the inlet port.

39. The method of claim 36, wherein the relative motion between the permitted delivery container and the base comprises: translating the delivery vessel in a horizontal direction in response to thermal expansion of a second connector tube.

40. The method of claim 36, further comprising: attaching the metal container to the base via a plurality of links extending radially outward from a flange of the metal container prior to introducing the molten glass into the inlet port.

41. The method of claim 40, further comprising counterbalancing a weight of the flange prior to the introducing the molten glass.

42. The method of claim 36, further comprising assisting expansion of the connector tube along the axis using an expansion aid.

43. The method of claim 36, further comprising applying a radial pressure to the metal container via a plurality of pressure bolt assemblies distributed circumferentially around the metal container to avoid strain build-up after introducing the molten glass.

44. The method of claim 43, wherein: the plurality of pressure bolt assemblies apply the radial pressure to a retainer structure that encloses the metal container, and the method further comprises circumferentially stretching the retainer structure via a plurality of tension spring assemblies.

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